Abstract: A powered square baler is operable to be powered by a prime mover to form a bale by compressing loose material. The powered square baler broadly includes a chassis, a plunger assembly, a flywheel, and a planetary gear train. The chassis includes a baler frame that presents a baling chamber to receive the loose material. The plunger assembly includes a reciprocating plunger head slidably mounted relative to the baler frame and operable to reciprocate into and out of the chamber and apply a compressive force to the loose material. The flywheel is rotatably mounted on the chassis and is operable to be driven by the prime mover. The planetary gear train is drivingly attached to the flywheel and is drivingly attached relative to the plunger assembly to transmit power between the flywheel and the plunger assembly and thereby drive the plunger head.

Abstract: An electric servo press machine is configured to convert a rotation of an electric servomotor into a reciprocating linear motion of a slide to perform press working on a workpiece. The machine includes a clutch mechanism interposed in a power transmission path between the servomotor and the slide, and a brake mechanism for applying a brake onto the slide under a disconnected state in which the servomotor and the power transmission path are decoupled from each other by the clutch mechanism. The machine brings the clutch mechanism into the disconnected state and applies the brake onto the slide upon an immediate stop request, and recovers from immediate stop under a state in which a phase shift between the servomotor and the power transmission path ranging from the clutch mechanism in the disconnected state to the slide is eliminated under a connected state of the clutch mechanism.

Abstract: A powered square baler is operable to form a bale by compressing loose material. The powered square baler broadly includes a chassis, a plunger assembly, and a plunger drive. The chassis includes a baler frame that presents a baling chamber to receive the loose material. The plunger assembly includes a reciprocating plunger head and a pair of connecting arms attached to the plunger head. The reciprocating plunger head is slidably mounted relative to the frame and is operable to reciprocate into and out of the chamber and apply a compressive force to the loose material. The plunger drive includes a pair of planetary gear trains and a common drive shaft that powers both of the gear trains, with each gear train drivingly connected to a corresponding one of the connecting arms to cooperatively power the plunger assembly.

Abstract: A pistol grip spring compressor system including a spring lock unit, an actuator assembly, and an anvil module such that the spring lock unit secures a valve spring coil of a valve spring unit from an internal combustion engine in a fixed position relative to a frame element to permit an anvil, provided by the anvil module and positioned against a valve spring retainer of the valve spring unit, to maintain compression on the valve spring while the valve spring unit is separated from an automobile internal engine combustion block.

Abstract: A slide motion control apparatus for a mechanical press comprising: a slide which is disposed so as to be relatively vertically movable with respect to a driven body to which a drive force is transmitted through a con rod of the mechanical press; a relative position commander that outputs a relative position command indicating a relative position of the slide with respect to the driven body; a relative position detector that detects a relative position of the slide with respect to the driven body, and outputs a relative position detecting signal indicating the detected relative position; a servomotor; a drive mechanism that relatively moves the slide with respect to the driven body by a drive force of the servomotor; and a controller that controls the servomotor based on a relative position command signal output from the relative position commander, and the relative position detecting signal output from the relative position detector.

Abstract: A press machine includes a cushion shaft, a press shaft, a motor, and a motor control device. The cushion shaft is connected to a lower die. The press shaft is connected to an upper die and configured to press a workpiece between the upper die and the lower die in cooperation with the cushion shaft. The motor is configured to drive the upper die. The motor control device is configured to control the motor and includes a disturbance observer and an intrusion detector. The disturbance observer is configured to calculate an estimated disturbance value with respect to the motor based on a torque command and a motor velocity of the motor. The intrusion detector is configured to detect, based on the estimated disturbance value, a state of a foreign object between the press shaft and the cushion shaft.

Abstract: A motor drive control device includes a power-running operation start voltage setting section that sets a power-running operation start voltage of the power supply converter, a power-running operation start control section that causes the power supply converter to start a power-running operation when the direct-current voltage of the power supply converter has reached the power-running operation start voltage set by the power-running operation start voltage setting section, a power-running operation stop voltage setting section that sets a power-running operation stop voltage of the power supply converter, and a power-running operation stop control section that causes the power supply converter to stop the power-running operation when the direct-current voltage of the power supply converter has reached the power-running operation stop voltage set by the power-running operation stop voltage setting section.

Abstract: The can crusher is a device capable of crushing aluminum and steel cans. The device incorporates a wheeled base that supports thereon an assembly that includes a container for housing the cans and mechanisms for crushing the cans. The crushing mechanisms include a hydraulic jack, a sliding crank system, extension springs, a single-phase, geared motor, a movable plate and a pressure gauge.

Abstract: A portable compactor for landscape waste formed as a generally rectangular box, extending from a gate at a front end to a closed second end. An opening in top of the box allows waste to be placed in an internal compaction chamber and a compaction plate disposed inside the box moves on parallel threaded drive rods extending along either side of the compactor to compact inserted material against the gate. Following compaction, the plate may be reversed to move away from the gate to provide additional space for insertion of waste. When full, the gate may be opened and the plate advanced to push waste out of the compaction chamber where it can be further used, disposed of or bagged for conversion to silage. The system may be sized to allow for installation in the bed of a pick-up truck, or on a small flatbed or trailer.

Abstract: The present invention is a metal can crushing device that includes a plurality of gears, a handle that is integral to the gears, a casing to house the gears, an accommodating open area with a top planar surface and a bottom planar surface that horizontally extend from the casing to receive a can to be crushed, the top planar surface is integral to the gears and controlled by the handle to exert pressure and crush the can and a spring housed within the top planar surface to stretch or condense the accommodating open area to accommodate different sized the cans. The metal can crushing device can also utilize a push button and hydraulic, pneumatic or electric gears.

Abstract: The invention provides a servo press machine including a slide moved up and down by multiple crank structures, the machine which provides perfect synchronism between main gears driving the respective crank structures and in which a compact, efficient power transmission structure can be implemented in a simple construction. In the servo press machine including the slide moved up and down by the multiple crank structures, synchronous distribution gears are driven by servo motors; the multiple main gears are driven in synchronism by the synchronous distribution gears; and each of the crank structures is driven by each of the main gears.

Abstract: A workstation of a packaging machine comprises a lifting device (100) which is configured such that it is able to convert a rotary motion of a motor (8) into a translator motion of the workstation by a lever device (6). The stroke of the lifting device (100) is performable for this purpose by a pivotable lever (61) and a roller (32) which cooperates with an upper roller limit (33).

Abstract: Provided is a press machine for driving a slide by a motor, including a control device for controlling driving of the motor, in which the press machine has a press capacity which can be variably controlled by using field control for the motor.

Abstract: The can crusher is a device capable of crushing aluminum and steel cans. The device incorporates a wheeled base that supports thereon an assembly that includes a container for housing the cans and mechanisms for crushing the cans. The crushing mechanisms include a hydraulic jack, a sliding crank system, extension springs, a single-phase, geared motor, a movable plate and a pressure gauge.

Abstract: The present invention provides an apparatus for loading soft materials and methods for using the same. In some embodiments, the apparatus is a gearless mechanical loading apparatus which converts a rotational movement of one end of a first element into an arc of a circle movement of the other end of the first element; and converts the arc of a circle movement of the other end of the first element into a precision two-dimensional lateral movement of a second element.

Abstract: A press with a cylinder for the movement of a pressure element is described. The cylinder is connected to a toggle lever, wherein the toggle lever is connected to a drive and wherein the drive moves the cylinder via the toggle lever.

Abstract: A compressing device for plastic bottles optimized for recycling machines providing carefully shaped first and second plates with one being generally convex while the other being concave so as to mate more completely and provide a flattened bottle, ready for recycling. Also, a tail serves to align the bottom of the bottle so that the bar code remains visible when the bottle is run through an automated recycling machine. There are two embodiments one has as component a stand and a tongue while another embodiment is without a stand and has a hingedly movable tail. Also, the tongue and the tail are configured and shaped so as to accept a variety of bottle bottom configurations and are also used for precisely aligning the bottom of the bottle for improving the way the bottle is compressed.

Abstract: A pressing apparatus using a motor, in which a driving device for fast feed, which lowers a upper die to a position immediately before pressing, and a motor for pressing, which performs a pressing operation, are used to cause the driving device for fast feed and the motor for pressing to operate cooperatively, and only one position detector, which detects a present position of a slider, is provided for a set of the driving device for fast feed and the motor for pressing. A lock device is provided so as to lock the slider and the screw shaft while the motor for pressing is operating for pressing a work piece.

Abstract: A baler, comprising a compacting mechanism and a binding mechanism is provided. The compacting mechanism comprises a bearing plane against which cardboard is compressed. This baler includes a compacting mechanism and rope tightening mechanism. In using the baler of the invention, a cardboard compacting platform is pulled up towards the compacting bearing plane along a channel in a frame. The compacting platform is pulled up by mechanical force and dragged downwards by its weight. A rope clamp placed on each side of the rack combine with the rope retracting ratchet gear and other elements from a rope tightening mechanism to tie up the compacting cardboard.

Abstract: A servo drive system of a press machine has a pair of servo motors which can generate necessary ram pressure by compositing and using a torque based on the same speed-torque characteristics. The servo motors are symmetric with each other in a mirror image manner. The servo motors are opposed to each other at opposite ends of an operation shaft which vertically moves a ram. The servo motors are integrally operated, thereby directly driving the operation shaft.

Abstract: A press unit (20) for a manufactured wood press (60) is provided. The press unit includes a housing (80), a platen (90), and a drive assembly (76) disposed within the housing. The drive assembly is coupled to the platen to drive the platen in a non-linear motion. More specifically, the drive assembly includes a shaft having concentric and eccentric portions which are disposed on separate axes. Rotation of the eccentric portion about its respective axis causes movement of the platen in the non-linear motion.

Abstract: The present invention provides a linear motor mounted press machine which uses a boosting mechanism to enable machining with a greater press tonnage using a press driving source with relatively low power and which, for machining with a smaller press tonnage, enables efficient high-speed machining. A linear motor mounted press machine includes a boosting mechanism 10 having an output portion that performs a rectilinear reciprocating operation, a first linear motor 11 coupled to an output portion of the boosting mechanism 10, a second linear motor 12 having an output shaft that drives a press tool 6 forward and backward, and a coupling switching mechanism 13. The coupling switching mechanism 13 releasably couples the output shaft of the second linear motor 12 to the output portion of the boosting mechanism 10. The boosting mechanism 10 is a toggle type link mechanism or the like. A servo motor and a crank mechanism or the like may be used in place of the first linear motor 11.

Abstract: The present invention relates to a device that is capable of crushing paper and aluminum and steel cans. The machine is assembled using the following components: hydraulic bottle jack, extension springs, single-phase geared motor, sliding contact mechanism, and pressure gauge. The input system consists of two major parts, the driving system and the sliding contact mechanism. The driving system is an electric motor with a gearbox. This geared motor is single-phased so it can be utilized in residences and restaurants. The sliding contact is divided to three main parts: the crank, slider and lever. The hydraulic jack is a lifting device that uses liquid-oil to raise heavy objects, but in this case its objective is to crush the cans while being raised. The frame is divided into four main parts: container, vertical frame, lower plate and upper plate.

Abstract: The invention provides a drive device for a mechanical press with a two-step speed reduction mechanism for driving a slide of the mechanical press and includes a drive pinion provided concentrically with a crankshaft, a main gear mounted on said crankshaft, intermediate gears meshing with the drive pinion, and intermediate pinions meshing with the main gear. A plurality of the intermediate gears and the intermediate pinions are provided concentrically with each other. An intermediate gear that meshes with the drive pinion is arranged concentric with an intermediate pinion that meshes with a main gear. This drive device provides a more compact mechanical press.

Abstract: A compressing device for plastic bottle uses a pair of plates which are strapped on each side of a bottle. The straps are tightened as the bottle's content is used up. The plates are shaped in such a way so as to reduce crimping on the bottle. Optional accessories such as a saddle to hold the plates on the side of the bottle while installing; a stand to hold the bottle upright; and a handle to facilitate pouring are available.

Abstract: A thermal pressing machine has a case in which a fixed-side press plate is fixedly provided, a main shaft to which a moving side press plate is attached, a lever arm pivotally attached to the main shaft, a first drive mechanism coupled to a force point at one end of the lever arm, and a second drive mechanism coupled to a supporting point at the other end of the lever arm. The first drive mechanism first causes the lever arm to pivot on the supporting point to greatly move the press plate, and the first drive mechanism is then stopped to operate the second drive mechanism, so that the lever arm pivots on the force point to press the press plate against the press plate.

Abstract: A guide system is provided to slidingly guide a reciprocating dynamic balancer weight within a press machine. An elongate stationary guide rail is disposed within a vertical channel formed at one side of the balancer mass. In this configuration, the guide rail is arranged in guide support relationship to the balancer mass. An arrangement of wear plates is mounted to the guide rail to provide additional bearing support to the reciprocating balancer mass. An arrangement of hydrostatic pads is mounted to the guide rail in facing opposition to the balancer mass to enable the formation of a hydrodynamic/hydrostatic lubricating action therebetween during reciprocation of the balancer mass. A machined steel plate is secured to the balancer mass at the same side where the guide rail is located and includes a set of lateral apertures formed therethrough that receive guide support members extending therethrough. The guide support members anchor the guide rail to the press crown.

Abstract: The present invention provides a motor driven link press which enables working with a heavy press load and also enables a working cycle time to be improved even when a motor with a relatively low output power is used and which can be properly controlled easily. A motor driven link press comprises a link mechanism 1 that converts a rotating operation into a linear operation and a ram 6 that elevates and lowers for press working on the basis of this linear operation. The link mechanism 1 comprises a crank member 2 having a crank shaft 3 and an eccentric shaft portion 4, a pivoting link 5, a connecting rod 7, and a restraining link 8. The pivoting link 5 has a first to third connecting portions P1 to P3 and is connected to the eccentric shaft portion 4 of the crank member 2 using the connecting portion P1. The connecting rod 7 is connected to the second connecting portion P2 and the ram 6.

Abstract: The present invention provides a motor driven link press which enables working with a heavy press load and also enables a working cycle time to be improved even when a motor with a relatively low output power is used and which can be properly controlled easily. A motor driven link press comprises a link mechanism 1 that converts a rotating operation into a linear operation and a ram 6 that elevates and lowers for press working on the basis of this linear operation. The link mechanism 1 comprises a crank member 2 having a crank shaft 3 and an eccentric shaft portion 4, a pivoting link 5, a connecting rod 7, and a restraining link 8. The pivoting link 5 has a first to third connecting portions P1 to P3 and is connected to the eccentric shaft portion 4 of the crank member 2 using the connecting portion P1. The connecting rod 7 is connected to the second connecting portion P2 and the ram 6.

Abstract: A method and an apparatus for varying the dwell parameters for a platen press are disclosed. The method involves creating an impression force between first and second platens using a driven biasing member where movement of the member is controlled by a tensioner. The apparatus includes a driven biasing member that is linked to at least one of the first and second platens that form the press and a tensioner linked to the biasing member. The bias and tensioner permit the dwell time to be extended and allows the impression force between the platens to be variably applied.

Abstract: A first embodiment of a drive arrangement for a large rectangular baler includes hydraulic pump and motor sets, and second and third embodiments include only gear and shaft arrangements, for driving the plunger for compressing the crop being baled, and for driving all of the auxiliary functions. In all embodiments, power delivered by a main shaft is divided between an auxiliary function drive shaft and a plunger drive shaft. In the first and second embodiments, a flywheel is located for smoothing the power flow to the plunger drive arrangement, and in the third embodiment the flywheel is located for smoothing power flow to both the plunger drive arrangement and the auxiliary function drive arrangement. In all embodiments, the rotation of the shaft carrying the flywheel due to the inertia of the flywheel is ineffective for driving the plunger and auxiliary function drive arrangements when power to the main drive shaft is cut off.

Abstract: The present invention provides a motor driven link press which enables working with a heavy press load and also enables a working cycle time to be improved even when a motor with a relatively low output power is used and which can be properly controlled easily. A motor driven link press comprises a link mechanism 1 that converts a rotating operation into a linear operation and a ram 6 that elevates and lowers for press working on the basis of this linear operation. The link mechanism 1 comprises a crank member 2 having a crank shaft 3 and an eccentric shaft portion 4, a pivoting link 5, a connecting rod 7, and a restraining link 8. The pivoting link 5 has a first to third connecting portions P1 to P3 and is connected to the eccentric shaft portion 4 of the crank member 2 using the connecting portion P1. The connecting rod 7 is connected to the second connecting portion P2 and the ram 6.

Abstract: The present invention provides a mechanical press with a low height. A sliding guide mechanism and a position adjusting mechanism are provided on the upper and lower sides of an adjustor member, respectively. The sliding guide mechanism converts the rotating motion of an eccentric part of a crankshaft into a reciprocating linear motion and is provided above the adjustor member. The position adjusting mechanism adjusts the position of the slide adjustment and is provided below the adjustor member.

Abstract: The invention relates to a pressing device, comprising an electric motor (1), a reduction gear (2) and a spindle drive (3). According to the invention, the reduction gear is in the form of a planet gear and the spindle drive (3) is a planet roller-screw spindle drive. The threaded nut (32) acts upon a pressing tool (4) and is guided in a linear direction in a rotatably fixed manner.

Abstract: A first embodiment of a drive arrangement for a large rectangular baler includes hydraulic pump and motor sets, and second and third embodiments include only gear and shaft arrangements, for driving the plunger for compressing the crop being baled, and for driving all of the auxiliary functions. In all embodiments, power delivered by a main shaft is divided between an auxiliary function drive shaft and a plunger drive shaft. In the first and second embodiments, a flywheel is located for smoothing the power flow to the plunger drive arrangement, and in the third embodiment the flywheel is located for smoothing power flow to both the plunger drive arrangement and the auxiliary function drive arrangement. In all embodiments, the rotation of the shaft carrying the flywheel due to the inertia of the flywheel is ineffective for driving the plunger and auxiliary function drive arrangements when power to the main drive shaft is cut off.

Abstract: The offset press comprises a frame, at least one plate cylinder, a press cylinder, and a blanket cylinder interposed between the plate cylinder and the press cylinder, together with bearing assemblies carried by the frame and receiving the longitudinal ends of the cylinders so that each cylinder is rotatable relative to the frame about a respective longitudinal central axis. Each of the longitudinal ends of at least a first cylinder are received in a first bearing assembly and a second bearing assembly, the second bearing assembly being spaced apart from the first bearing assembly along the longitudinal axis of the first cylinder.

Abstract: With a method of controlling synchronous drive of a plurality of pressing machines, each of the pressing machines has a motor, a drive shaft to which a torque of a flywheel driven by the motor is transmitted through a clutch and a slide driven by the drive shaft so that a rotational position of the drive shaft of each of the pressing machines is synchronous each other. The method has a step of detecting actual velocity information of the motor and a step of detecting actual rotational-position information of the drive shaft. The detected actual rotational-position information is compared with the reference rotational-position information from a reference rotational position information generating section. Based on the result of the comparison, the reference velocity information from a reference velocity information generating section is compensated into characteristic reference velocity information of each of the pressing machines.

Abstract: Learning control is adopted in slide control of a press, and the actual behavior pattern of the slide is converged to the optimum pattern thereby breakage of a metal mold or the like can be prevented. The slide control device is provided with a linear motor or a servo motor driving the slide in reciprocation, a position detector detecting position of the slide, and a control circuit fixing and storing previously the command value of the optimum pattern of behavior of the slide, and calculating error between the real position data from the position detector and the fixed command value of the optimum pattern in a prescribed period of time from the drive start of the slide, and correcting the command value to be outputted in order to eliminate the error and outputting the command value after the correction and controlling the linear motor or the servo motor.

Abstract: A corner bending unit (2) for achieving a reciprocating movement in a tool holder (14) for a bending tool (12), the tool holder being articulated to a foundation (4) via parallel links (16, 18). The corner bending unit (2) has a pneumatic cylinder (38) with a piston rod (36) which is pivotally (34) joined to a triangle link (30), which is in turn pivotally joined (32) to one end of a link (28), the other end of which being joined to a pivot point (22) on the tool holder. The triangle link is pivotally carried in the foundation (4) about a pivot point (24) and forms, together with the link (28), a knee-joint mechanism (28, 30), which, under the influence of the cylinder (38) piston rod (36), can be moved from the bent-out position shown to a completely extended position, the tool holder (14) being movable between a starting position and a work position. The pivot point (22) is common to parallel link (16) and the link (28), and pivot point (24) is common to parallel link (18) and the triangle link (30).

Abstract: A driving device for a bending unit for bending-in an edge flange against a workpiece. The bending unit comprises a stand, supporting the driving device, a supporting surface for the workpiece and a linkage system, which supports a bending tool for the movement along a predetermined path of movement. A motor (14) is mounted on the stand (1) and is coupled to a crankshaft (23) mounted in the stand. The crankshaft supports on a crank pin (25) one end of a connecting rod (26), the other end of which is articulated to a link (8) in the linkage system. The connecting rod (26) is movable, by rotation of the crankshaft (23), between a rest position, in which it keeps the linkage system (8) and the tool in a deactivated position, and a work position, in which it keeps the linkage system (8) and the tool in an end position, where bending-in of the edge flange is completed.

Abstract: The invention relates to an apparatus for bending a flange into engagement with a workpiece. A bending tool is mounted on a tool holder connected to a stand by a linkage mechanism. The linkage mechanism includes a first link with its ends journalled on a pin on the tool holder and on a fixed pin on the stand, and a second link with its ends journalled on a pin on the tool holder and on a pin, the position of which in relation tot he stand can be adjusted. A first drive member pivots the first link about its fixed pin and a second drive member moves the adjustable pin.

Abstract: A power transmission shaft which transmits rotational energy of a flywheel is divided into a first shaft section adjacent to the flywheel and a second shaft section adjacent to a power take-off gear. A planetary gearing is arranged between the shaft sections and is adapted to be driven by a servo motor. A power take-off gear is mounted on an output section of the planetary gearing so as to transmit the power to drives. The servo motor controls the rotation of the output section of the planetary gearing to vary the rotation of the power take-off gear so that the action velocity of the slide or the like can be freely controlled and press working for different kinds of materials can be carried out.

Abstract: A mechanical press includes a slider which is reciprocated, through connecting rods, by an oscillating plate oscillating around a driving shaft to obtain a press load. The press further includes a swash plate rotatable with the driving shaft. The oscillating plate oscillates in accordance with the rotation of the swash plate. A plurality of lock pins are concentrically disposed in parallel with the driving shaft on a side of the oscillating plate opposite to the swash plate. Each of the lock pins has a spherical head housed in the oscillating plate so as to make the pins rotatable and axial movable. A slider guide supports the pins and the slider.

Abstract: A machine for hemming an edge portion of an arcuate panel having a fixed die with an arcuate contour complementary to the panel, a moveable die head having prehemming and hemming dies thereon with edge contours, respectively, complementary to the edge contour of said panel. A single fluid actuator and a cam controlled linkage effect both vertical and lateral movement of both the hemming die and prehemming die relative to the fixed die upon operation of the actuator. A pair of arms are pivotally attached to the prehemming die to form a radius of rotation which controls horizontal and vertical movement of the prehemming die relative to the moveable die head to provide proper clearance and disengagement between the prehemming die and the edge portion of the arcuate panel and/or the fixed die after completion of the prehemming operation.

Abstract: Force transmitting coupling (44) for transmitting force from an actuator (16) which oscillates along an arcuate path to a ram block (12) which reciprocates along a rectilinear path comprises a flexible member (50) coupling which is connected to the actuator (16) by a lost motion connection (90, 94) and which is against the ram block (12). The flexible member (50) is supported intermediate its ends in a manner such that it can flex by a predetermined amount but not more than the predetermined amount. When the ram block (12) is pushed from a retracted position to a forward position, the flexible member is placed in compression and flexes by only the predetermined amount. The force transmitted to the ram block is applied to the axis of the ram block.

Abstract: Apparatus for bending a margin flange (5) which projects at an angle to a surface of a workpiece (4) against that surface, includes a bending tool (6) which is mounted on a tool holder (7) which by a linkage system (8-13) is connected to a stand (1) which carries the workpiece (4). A drive arrangement (15-24) is connected to the tool holder (7) for movement of the tool holder in relation to the stand (1). The linkage system connecting the tool holder (7) with the stand (1) includes two mutually parallel carrier links (8, 11) each of which is pivotally mounted at one end thereof on a respective journal pin (9, 12) located on the tool holder (7). The other end of one carrier link (8) is pivotally mounted on a journal pin (10) which is fixedly mounted on the stand (1) and which also pivotally carries one end of a connecting link (14), the other end of which is pivotally connected to the other end of the other carrier link (11) by a pin (13).

Abstract: Apparatus for bending a margin flange (5), which projects at an angle to a surface on a workpiece (2), against the workpiece. The apparatus includes a bending tool (6) which is mounted on a tool holder (14) carried by a parallelogram mechanism (7-12) for movement in relation to a stand (1) on which the workpiece (2) is placed. A drive arrangement (17) is drivingly connected to the tool holder (14) by a linkage (21-27). The tool holder (14) includes a main part (13) connected to the parallelogram mechanism (7-12) and a movable part (15) which is pivotal about a journal pin (16) on the main part. The journal pin (16) is substantially parallel with the axes (7, 8, 11, 12) of the parallelogram mechanism. The movable part (15) carries the tool (6) and by a resilient element (32) is urged towards a starting position with a nose of the tool (6) biased away from the workpiece (2).

Abstract: The invention relates to an apparatus for bending a flange against a workpiece (3). A preliminary bending tool (5) on a first tool holder (7) is carried by a linkage mechanism (8-13) for movement in relation to a stand (1). A bend finishing tool (6) on a second tool holder (14) is carried by a parallelogram linkage mechanism (15-20) for movement in relation to the stand (1). The first linkage mechanism (8-13) forms a parallelogram having a line between the axes (10,11) of the links extending perpendicularly to a line between the axes (17,18) of the second linkage mechanism (15-20). One single drive member (21) is connected to the parallelogram linkage mechanism (15-20) to drive the second tool holder (14). A drive link (28) is connected between the parallelogram linkage mechanism (15-20) and the first tool holder (7) to drive this.

Abstract: A machine for hemming a panel having a fixed die with an edge contour complementary to an edge of the panel, a movable die head having prehemming and hemming dies thereon with edge contours, respectively, complementary to the edge contour of said panel, a single fluid actuator, and a cam controlled linkage for effecting both vertical and lateral movement of both said hemming die and said prehemming die relative to said fixed die upon operation of said actuator.

Abstract: A crusher is provided for crushing typical beverage cans to shorten their height for facilitating disposal and recycling. An upright wall-mounted magazine carries a column of cans disposed with their lengths horizontally and the cans move gravitationally, one by one, into a crushing chamber in which a manually operated plunger functions to crush each can axially to a shortened length enabling it to drop from the crushing chamber into a waiting receptacle.