Abstract: A feeder apparatus for a metal strip includes: a reciprocating block reciprocally moved by a driving means of a press apparatus when conveying the metal strip in which through-holes are formed in a predetermined direction; a moving block disposed above the reciprocating block and connected to a connecting member that moves in the direction of movement of the reciprocating block; a pin block that moves with the moving block and is provided with conveying pins whose front ends are inserted inside the through-holes; and an upper-lower cam portion that raises and lowers the pin block. The moving block is not pulled by the reciprocating block, and the feeder apparatus further includes a moving block driving means for reciprocally moving the moving block separately to movement of the reciprocating block.

Abstract: A conveyor unit for conveying a web of material, in particular for conveying a web of corrugated board in a corrugating machine, comprises a machine frame; a delivery roller, which is lodged in the machine frame rotatably about a first axis of rotation; a drive for actuation of the delivery roller; a draw roller, which is lodged in the machine frame rotatably about a second axis of rotation, the first axis of rotation and the second axis of rotation being substantially parallel to each other, a nip for the web of material to pass through being formed between the delivery roller and the draw roller, the draw roller having a draw-roller-surface coefficient of friction which is selected so as to ensure power transmission from the draw roller to the web of material that rests thereon, and the delivery roller having a delivery-roller-surface coefficient of friction which is less than or equal to the draw-roller-surface coefficient of friction; and a torque transmission arrangement, which acts between the delivery

Abstract: A tape feeder has a driving member which performs reciprocating motion, and a tape-advancing mechanism driven by the driving member for intermittently advancing a tape containing electronic parts to thereby position each of the electronic parts at a predetermined takeout position. The tape-advancing mechanism comprises a driving force-converting device for converting a driving force received from the driving member to a driving force for use in tape-advancing motion of the tape-advancing mechanism, such that speed of the tape-advancing motion is varied as the tape-advancing mechanism is driven by the driving member.

Abstract: A material feeding apparatus intermittently feeds a material having a relatively large width at high speed with high accuracy, whereby adjustment of the apparatus and the die maintenance can be readily performed, and the material will not be easily damaged. The material feeding apparatus includes a pair of gripper feeds which are provided on both the right and left sides of a press machine and actuated synchronously.

Abstract: A drive unit (10) comprising a cam (11) acting on at least one hydraulic drive plunger (16, 17) hydraulically connected to at least one thrust plunger (18, 19) for a traction carriage (20, 21) to be moved along its stroke. The at least one thrust plunger (18, 19) is a double-acting plunger one side of which is connected to the at least one hydraulic drive plunger (16, 17) and the other side of which is connected to an expansion element (41, 42) storing kinetic energy in the form of pressure when the carriage is pushed in its forward stroke and giving the kinetic energy back for pushing the carriage (20, 21) when in its backward stroke. In particular, the at least one drive plunger (16, 17) are two in number and are disposed in phase opposition to be controlled by the cam (11) for alternately pushing two carriages (20, 21) aligned with each other along a forward stroke.

Abstract: A device (10,110) for loading bars in an automatic lathe comprises guide means (19,119,119') along which is supported and made to run a bar (12,112) with leading end projecting from said guide means to be inserted in a lathe chuck (11,111) to be grasped by handling means (21,121) of the lathe moving parallel to the bar axis to feed the bar under machining tools (31,131). At least a first part of the guide means (19,119,119') nearest the chuck has kinematic connection with the handling means (21,121) for moving axially and substantially synchronously therewith.

Abstract: A device (10) for loading bars in an automatic lathe comprises a pusher (13) with handling means (15,18) to push axially the leading end of a bar (12) into a lathe chuck (11) to be grasped by lathe means (21) moving parallel to the bar axis to feed the bar under machining tools (31). The pusher (13) with its own handling means (15,18) is supported on a truck (24) moving along guides parallel to the direction of movement of the bar (12). The truck (24) comprises connection means (30) to be constrained to the lathe bar-feed means for moving synchronously therewith.

Abstract: A feeding system for strip material for transporting a strip over a conveying distance of limited length, particularly in treatment plants for metal strip. The feeding system includes a transfer carriage which is guided on a rail guide. The transfer carriage has a chamber for receiving the strip and is provided with a device for temporarily holding the beginning of the strip. The transfer carriage has at both sides thereof a reversible linear motor each for driving the transfer carriage over the conveying distance.

Abstract: A stock feeder has a housing for supporting both the stock and an advancer which coaxially extends through the housing and is formed as a collet which, when clamped, grips the stock and holds the advancer in a fixed relationship with the stock. At the extreme distal end of the advancer the collet is formed with a radially extending lip, and proximal to the collet the advancer is formed with a radially extending ring. A chuck which is formed with a radial groove slidingly surrounds the collet and is movable relative to the advancer. Specifically, the chuck can be moved on the collet between a first position wherein the chuck clamps the collet onto the stock and a second position wherein the collet is released to allow a sliding movement of the stock through the advancer. In either collet configuration, the stock may be rotated. An actuator is engaged with the groove on the chuck and is manipulable to move the chuck between the first and second positions.

Abstract: In a tape feeding apparatus used in bonding machines for semiconductor devices, both upper and lower tape clampers are driven upward and downward. Thus, during the tape feeding operation, the upper clamper and the lower clamper can be both withdrawn from a tape feeding path so that neither the upper surface nor the under surface of the tape contact the upper clamper nor the lower clamper. No scratches, etc. would occur in the tape. In addition, the bonding level of the tape is determined by the upper surface of the lower clamper during the tape clamping operation, thus securing high bonding precision.

Abstract: A material loading apparatus for material working machines comprises loading slide elements for stepwise conveying one of a wire and strip material guided in a main guide along a guidance direction. The loading slide elements having a controlled slide-mounted material clamping device, an oscillating drive connected to the loading slide elements and a controlled material holding device. Stopping of the material clamping device at its extreme positions along the main guide is achieved via slide abutments. A resilient transmission system is provided in the driving connection between the oscillating drive and the slide-mounted clamping device. The loading slide elements have, in connection with oscillating drive, a main slide guided in a main guide and a secondary slide provided on the main slide and capable of moving substantially parallel to the main guide.

Abstract: A hot melt applicator has a feeding mechanism for advancing a block of solid material toward a melting chamber, and the feeding mechanism includes a retraction device for shifting the block a slight distance in a rearward direction to a retracted position subsequent to the dispensing operation. The feeding mechanism has a release device for enabling the block to float freely after moving to the retracted position in order to provide additional room for molten material in the melting chamber upon thermal expansion of the material.

Abstract: A continuous drawing machine for drawing elongated material through a die has two drawing carriages each with one pair of jaws to grip the wire. The jaws are wedge-shaped and mounted on their rear side in oblique supports. Once in operation they are self-gripping. A linkage system, comprising an arm extending from each carriage and two cam curves on the machine-frame, controls the initial grip of the jaws on the wire. The two cam curves are formed by an oscillating tongue articulated on the machine frame next to the starting position of the carriage. The arm has a follower-roll that follows the first cam curve and thus clamps the wire. During the return of the carriage the tongue with the two cam curves thereon is pushed away by the follower-roll rolling or sliding with its face along the second cam curve. The tongue snaps back by means of a spring as soon as the follower-roll has passed and again offers the first cam curve to the follower-roll after the reversal of the carriage's moving direction.

Abstract: In a multi-slide wire and strip forming machine, an improvement that enhances the flexibility of the machine primarily from the standpoint of providing increased forming time relative to feeding time. The machine includes a wire forming means operable at the work station in response to the machine camshaft and operable over a predetermined forming. Wire feeding means is also included operable in response to the camshaft over a predetermined feeding period. An improved gearing arrangement is provided intercoupling the camshaft and the wire feeding means and configured to provide during a full camshaft rotation, different intervals of the predetermined forming and feeding periods, respectively.

Abstract: A hot melt glue gun is described and claimed having a rod feeding mechanism (14) comprising a trigger (50) arranged to drive clamping means to grip a rod of adhesive and to move the rod towards a melt chamber (17) of the gun. The clamping means comprises a carriage (42) movable towards and away from the melt chamber and having a shaped portion (110) to accept a rod to be fed. The clamping means also comprises, pivoted on the carriage, a clamp member having a clamping arm portion (71) for gripping the rod against the shaped portion, and a crank arm portion (70). The crank arm portion has an operating portion (49) having a convex surface (64) arranged to co-operate with pressure means (207) of pivotally mounted connecting means (52). The connecting means is positioned to be operated by the trigger. By virtue of the disposition of the pivots and the clamping arm and of the shaping of the operating portion of the crank arm, there is brought about an improved usage of triggering effort to feed the rod.

Abstract: This actuating and locking apparatus comprises an actuating shaft (1) mounted in two bearings (2) and (3) and on which is mounted a control lever (6), a second lever (25), a spring (15), a part (20) rigidly connected to the shaft (1) and an arm (45) rigidly connected to this shaft and bearing a small plate (43) intended to co-act with an electromagnet (41). The control lever (6) is mounted freely on the actuating shaft (1), while the second lever (25) is rigidly connected to this shaft. In normal operation a connecting rod (14) causes the control lever (6) to pivot around its axis, thus driving via the lateral pin (23) and the recess (24) the second lever (25) and consequently the driving shaft (1). In order to lock e.g. a paper gripper (36), the electromagnet (41) is excited, thus locking the small plate (43), the actuating shaft (1) and the lever (25) in the upper position, allowing free displacement of the control lever (6) and generating torsion on the spring (15) during each cycle.

Abstract: A grip-feed machine for gripping a material in the form of strip or the like and feeding the gripped material in a bending machine which has a sun gear, comprising: a guide bracket having a guide shaft securely received therein; a cradle member having lower and upper portions and movable axially forwardly and backwardly on and along the guide shaft and formed at the lower portion thereof with a rack gear in parallel to the guide shaft; a gripping mechanism for gripping the material and feeding the gripped material in the forward and backward directions of the guide shaft; a pinion gear held in mesh with the rack gear of the cradle member; a direct current servomotor for driving the pinion gear to rotate about an axis thereof; an angular position detector having mounted thereon a detecting gear which is held in mesh with the sun gear and adapted for detecting the angular position of the detecting gear to produce a pulse signal indicative of the angular position of the detecting gear; and control mechanism for

Abstract: A mechanism, for intermittently feeding a tape-like article along a longitudinal path, comprises a slide having a first clamping jaw and reciprocably movable parallel to the longitudinal path, and a second clamping jaw carried by the slide and movable relatively thereto toward and away from the first jaw to clamp and release the tape-like article. At the end of the slide's forward movement, the second jaw is moved away from the first jaw and is locked in such "releasing" position. At the end of the slide's backward movement, the second jaw is unlocked and thereby returned to its "clamping" position.

Abstract: A roll feed apparatus suited for use in automatic manufacturing machines, in feeding a sheet-like material intermittently. The apparatus comprises a main sector roll and a sub-sector roll adapted to cooperate with each other in clamping therebetween the sheet-like material and in feeding the same. The main sector roll and the sub-sector roll are operatively connected to each other through sector gears. The main sector roll is operatively connected to a rocker shaft which is adapted to be rocked in rotational direction so that the main sector roll and, hence, the sub-sector roll are made to rock as the rocker shaft makes a rocking rotation. A connection device is provided for operatively connecting the main sector roll to the rocker shaft in such a manner that the rocking angle of the main sector roll for a given rocking angle of the rocker shaft is changeable.

Abstract: A mailing machine including a postage meter for printing postage impressions on tape, a removable tape dispensing module, and a device for receiving the removable tape dispensing module. The removable tape dispensing module includes a support housing, a shaft translatably mounted in the housing, an advance roller slidably mounted on the inner end of and rotatably with the shaft, a paddle pivotably mounted on the housing and biased downwardly onto the advance roller to thereby clamp the tape, a cam fixedly mounted on the interior portion of the shaft, the cam being engagable with the paddle to lift the paddle away from the advance roller, a rotatable knob mounted on the outer end of the shaft and capable of rotating the advance roller, and a device for effecting translation of the cam in the direction of the axis of the shaft.

Abstract: A device for melting a rod-shaped member of thermoplastic material and discharging the melted material includes a casing containing a melting chamber. A transport element within the casing grips the rod-shaped member and feeds it into the melting chamber. In a mechanism for displacing the transport element and thereby feeding the rod-shaped member, an overload member is provided which discontinues the displacement of the transport element when a predetermined pressure is exceeded within the melting chamber.

Abstract: A film advance mechanism is provided in which film is advanced stepwise by two reciprocal film-engagement pins (20). The pins (20) are mounted on a cam follower (10) and the pins and cam follower are arranged to rotate relative to a circular cam (12). The surface profile of the cam (12) moves the pins (20) into engagement with the film during about 60.degree. every revolution thereby allowing the film to be stationary for about 300.degree.. Two reciprocal location pins (33) are also provided which are synchronized with the film-engagement pins and are arranged to engage the film only when the film is stationary.

Abstract: In apparatus for feeding stock including a feeding slide driven for reciprocal motion within a linear path between two terminal positions by a crank mechanism, an auxiliary device is provided which periodically superimposes motion characteristics on the movement of the feeding slide caused by revolution of the crank mechanism at least in the regions of the terminal positions of the linear path of the feeding slide.

Abstract: A device for driving an endless chain or the like, particularly, though not exclusively, a chain of the flat-link kind used in bucket elevators, the device comprising a reciprocating slipper having locking means which grips the chain in one direction of reciprocating movement but runs freely with respect to the chain in the reverse direction, there being means for preventing reverse movement of the chain whereby the slipper advances the chain intermittently in one direction. In an alternative embodiment, two slippers may be provided working in opposition to each other so that the chain may be continuously driven thereby.

Abstract: A hot melt applicator of the type in which a preformed rod of thermoplastic composition is pressed against a heated body which transforms the composition in contact therewith into a molten state and in which pressure applied upon the pre-formed rod forces the molten hot melt composition through a nozzle or other aperture. The invention relates to improvements in the melting head, and in the rod advancing and feed mechanism.

Abstract: The paper advance mechanism disclosed herein comprises two essentially identical paper-engaging devices, one fixed, one driven, which cooperate to incrementally advance the paper in a hand-held printing calculator. Each device includes a tapered cavity enclosing a roller which engages the paper as it passes therethrough. The position of the roller in the cavity determines whether that device slidably or non-slidably engages the paper and the position of the roller is determined by the movement of the paper itself. The paper-engaging devices alternately non-slidably engage the paper; when the driven device moves in one direction, it non-slidably engages and thus advances the paper as it moves, and the paper slides through the fixed device; when the driven device reverses direction, it slidably engages the paper as it returns to the start of its travel and the fixed device non-slidably engages the paper to hold the advanced paper in position.

Abstract: A method and apparatus for cutting and forming planar strip material which is particularly useful in the fully automatic, high volume production of precision, microminiature multifid electronic brushes. With the apparatus of the invention, high quality electronic brushes are produced automatically from a continuous thin strip of metal or metal alloy. At predetermined locations along the length of the strip, the material is cut so as to form a multiplicity of precisely spaced apart longitudinally extending slits or incisions. The material is then automatically cut transversely of the slits so as to form a multiplicity of precisely spaced apart outwardly extending fingers. The fingers are then formed in a forming die to the cross-sectional configuration desired for end product use.