Abstract: An injection stretch blow molding apparatus has a preform molding section for molding preforms and a blow molding section for blow molding containers from the preforms retaining heat from when the preforms were injection molded. At a location in a path along which the preforms are carried from the preform molding section to the blow molding section there is a discharge guide section for guiding preforms which are not to be carried to the blow molding section off the carrying path.

Abstract: The invention concerns a device for producing thermoplastic containers, in particular bottles, by the blow-molding or stretch blow-molding of a preheated preform. The device comprises at least one mould consisting of two half-molds (2) each supported by a mould carrier, the two mould carriers being movable relative to each other. Each half-mould (2) comprises a shell holder (9), supported by the respective mould carrier, and a shell (7) which is equipped with a half-impression (8) of the container to be obtained and can be rendered integral in a detachable manner with its shell holder (9) by rapid-fastening means (19-23). The shell (7) and the shell holder (9) are of complementary shapes such that they contact each other at least partially for heat conduction purposes whilst the pipes and connections for circulating and/or heating fluids are provided in the shell holder alone.

Abstract: The present invention concerns a molding device with a longitudinal axis, comprising a first half-shell and a second half-shell, the two half-shells being capable of being joined along an opening plane so as to form a cavity with an elongate cross-section, having a major axis and a minor axis. The opening plane of the mold is substantially perpendicular to the major axis. In accordance with the invention, each half-shell comprises at least two separate longitudinal parts joined along at least one joint surface, each joint surface being delimited by two opposed sides of two adjacent parts, at least one of the sides having at least one recess so as to define with the other side at least one narrow slot to allow air to escape along the surface during the blow molding of the object.

Abstract: A method and an apparatus are provided for inserting labels into blow-molded hollow articles. The blow-molding apparatus includes a carrousel mounted to rotate within a support frame. The carrousel carries four multi-cavity molds around a circular mold path. Two blow-molding workstations are disposed next to the mold path in fixed positions relative to the frame. The carrousel is indexed to cause each mold to pause by each workstation, and at a label-insertion station, one time during each carrousel revolution. An in-mold labeler inserts a label into each mold at the label-insertion station. The in-mold labeler includes four picker heads supported on a carriage that shuttles the heads between label dispensing magazines and the mold station path. Each magazine includes a label stack receptacle in which labels rest edgewise, by gravitational force on a pair of label guide surfaces.

Abstract: This invention discloses a method of holding and transporting a hollow flexible belt throughout a coating process. The method includes placing an expandable insert into the hollow portion of a seamless flexible belt, and expanding the insert until it forms a chucking device with a protrusion on at least one end. A mechanical handling device is then attached to the protrusion, and will be used to move the chuck and the belt through the dipping process, as materials needed to produce a photosensitive device are deposited onto the surface of the belt, allowing it to be transformed into an organic photoreceptor. The chucking device and flexible belt are then removed from the mechanical handling device, the belt is cut to the desired width, and the chuck is removed from the inside of the photoreceptor.

Abstract: A label pickup mechanism for an in-mold blow molding machine has a rotating magazine system which allows the captive stack of labels to rotate about a center point by sliding on a circular track of a radius common to the base plate of the label magazine and a front plate carried in the label support apparatus. Such rotation prevents the label stack to lose its coordinate position while trying to address label askewness. The label stack is kept compressed against retaining tabs by using label pushers.

Abstract: A mold for forming hollow blow molded containers is made in multiple sections to create a cavity in the shape of the desired container when the mold is in the closed position. A recess is formed in the inner surface of at least one of the sections of the mold body, and a removable insert is designed to be placed in the recess. The insert may carry design indicia on it; and it is held in place by a set screw extending through the top of the mold body section in which it is located. Thus, insertion and removal of different inserts may be accomplished without disassembling the mold.

Abstract: An apparatus and method for blow molding interlocking drink containers. Each container having a hollow container body with a top including an upwardly tapered neck and an opening into the hollow body, a bottom, a first side with an upper and a lower male lug, a second side with an upper and a lower female cavity and a third and a fourth side. The apparatus includes a split mold having a male block and a female block. The female block used for forming the first side of the container with male lugs and a portion of the third and fourth sides and a portion of the top and bottom of the container. The male block used for forming the second side of the container with female cavities and a portion of the third and fourth sides and a portion of the top and bottom of the container.

Abstract: The present invention is intended to prevent the deformation of a cylindrical mouth portion of a preform when a blow pressure acts thereon in a diameter expanding direction during biaxial orientation blow molding. During biaxial orientation blow molding, sealing of the blow pressure is accomplished by means of a neck ring P1 circumferentially provided on a lower end of the circumferentially provided on a lower end of the circumferential surface of a cylindrical mouth portion P2 of a preform to thereby make the blow pressure act uniformly on the whole area of the cylindrical mouth portion P2, whereby the unreasonable deformation of the cylindrical mouth portion P2 due to the ununiform application of blow pressure thereto can totally be eliminated.

Abstract: A preform mold assembly for the injection molding of a multi-layer preform for use in the blow molding of container. The preform mold assembly comprises a preform mold having a gate for receiving molten plastic material. The preform mold has a cavity with longitudinal axis and defines an inner surface. A core-pin is situated within the cavity and spaced from said inner surface. A preform cavity is formed between the inner surface of the cavity and the core-pin for receiving molten plastic from the gate. A threadsplit portion is situated within the cavity at a location remote from said gate. The inner surface of the cavity defines a plurality of flutes formed generally parallel to the cavity longitudinal axis and extend longitudinally along the inner surface of the mold to the threadsplit portion.

Abstract: A section of an I.S. machine for manufacturing glass containers. A gob of molten glass is delivered to a blank mold to be formed into a parison. The formed parison is then transferred to a blow mold so that an initial blowing operation can be performed to stabilize the parison. The blow mold with the stabilized parison is then transferred linearly to a final station where the parison is blown into the container.

Abstract: A bottom mold for molding a biaxially stretch blow-molded article. The bottom mold has a grounding bottom portion and a central inwardly concave dome inside of the grounding bottom portion. The central inwardly concave dome has annular flat walls at different levels from the grounding bottom portion. The annular flat walls are defined by polygons of similar figures. An angle of one of the polygons is aligned along a radial line connecting a bisected point of one side of an adjacent upper or lower polygon and the center of the central inwardly concave dome. The angles of the polygons are the highly stretched areas having a high latitudinal stretch ratio, while the sides of the polygons particularly around the center point, are the moderately stretched areas. The highly and the moderately stretched areas are alternately arranged around the central inwardly concave dome in the circumferential and radial directions.

Abstract: The heterogeneous polymerization of water-insoluble polymer in CO.sub.2 is disclosed. The method comprises providing a heterogeneous reaction mixture comprising CO.sub.2, a monomer, and a surfactant, then polymerizing the monomer to form a water-insoluble polymer.

Abstract: The present invention provides an apparatus for shaping deformable materials during molding processes. Such an apparatus includes, among other things, a vibrating wall assembly. The vibrating wall assembly fits the contours of at least a portion of a mold's cavity. The vibrating wall assembly includes a pliable wall positioned within the mold. The pliable wall is positioned such that its outside wall surface is adjacent to a portion of the mold's inside wall surface; and its inside wall surface defines a portion of the geometric configuration of the material passing thereover. The pliable wall is designed to deform from its original shape when a positive or negative pressure is exerted on its inside or outside wall surface. This positive and/or negative pressure is generated, at least in part, by the displacement of a displaceable fluid. This fluid is contained within a chamber. The chamber is in communication with a portion of the pliable wall's outside wall surface.

Abstract: An improved injection blow molding apparatus. The apparatus includes an injection blow molding machine having work stations and molds. The apparatus includes a process controller for operating the blow molding machine according to a set of processing parameters. Each processing parameter has a respective desired operating range. The apparatus includes a touch screen for inputting signals to the processor for commanding the process controller to adjust the processing parameters. Display software and hardware coupled to the process controller and the touch screen cause the monitor to display respective icons representing each processing parameter. The value of each respective processing parameter is displayed adjacent to the icon. Graphing software generates signals which are transmitted to the monitor. The monitor displays a graph of the selected processing parameter value as a function of time.

Abstract: An improved modular mold having adjustable height shims provided between upper and lower panel sections to adjust the volume and height of a PET beverage bottle. The shims are easily replaced and form part of a high-strength mold set which accepts customized shoulder and base portions.

Abstract: The device serves to apply a prestress to blow moulding elements mounted in the region of mould carriers. The blow moulding elements am adjacent to each other in the area of a mould seam and in each case regionally enclose an internal space, which is intended for shaping a container manufactured with a blow process. In an elastomer a positioning element is embedded at least regionally and is enclosed at a distance by a peripheral element. At least part of the elastomer is arranged between the peripheral element and the positioning element in order to form an elastic connection.

Abstract: A face block (10) for an injection blow molding machine of the type used in producing thermoplastic containers. The face block has a lateral series of openings (14) extending axially therethrough, and each opening receives an end portion of an elongate tubular core rod (16). The core rod has an annular bushing (18) secured to the end portion that is received in the opening, and the opening is sized to permit radial movement of the annular bushing therein to permit the core rod to move relative to the face block. The annular bushing has an annular recess (18a) in an end surface thereof and the recess carries an elastomeric O-ring (20) which sealingly engages an inturned annular flange (14a) at the rear of the opening. The core rod is axially positioned relative to the annular flange to maintain the O-ring in sealing engagement therewith by a U-shaped retainer (22) which is secured to the front of the face block. The retainer has legs (22a, 22b) which engage a recess (16a) in the outside of the core rod.

Abstract: The invention resides in a rotary blow molding machine in which under an extruder for extruding a parison, a turntable is arranged which has plural sets of molds mounted thereon for holding the parison therebetween and blow-molding the parison, the turntable is rotated by a motor, an annular driven gear is provided on the turntable, and one pair of idle gears are made to intervene between the driven gear and a driving gear for transmitting the rotation of the motor so as to intermesh with both the gears.

Abstract: An improved blow mold alignment system for aligning blow mold halves relative to one another. The system includes the alignment pins having a cylindrical tip section and conical following section on one blow mold half. Sockets for the pins are provided in a cooperating blow mold half. Each socket has a corresponding configuration for snugly engaging a pin in one end thereof and has an opposite open end which aligns with a channel created in the blow mold half. The channel terminates in an outlet formed in a wall of the mold half at a position subjacent that of the socket.

Abstract: An apparatus for collapsing and folding an upright container to a compact stackable configuration, the container having a bottom wall, peripheral side wall with at least upper, lower and intermediate annular stepped portions in the peripheral side wall, and a top wall having a discharge opening therein, includes tooling for supporting and holding the container in an upright position; a first forming element for engaging and exerting a downward force on the intermediate annular stepped portion of the peripheral side wall and for effecting the formation of a first folded portion in the peripheral side wall; and a second forming element for engaging and exerting a downward force on the top wall for effecting the formation of a second folded portion in the peripheral side wall, substantially concentric with and radially adjacent the first folded portion.

Abstract: A plastics processing machine, in particular a blow moulding machine, with mould halves of a first product mould secured to movable mould clamping plates, and separate mould halves of a second product mould clamped onto the mould halves of the first product mould. The machine is operated with the mould halves of the first product mould to produce a first product line. During this operation, the mould halves for the second product mould are removed. The machine is operated with the mould halves for the second product line by attaching these mould halves to the mould halves of the first product mould.

Abstract: A blow molding apparatus having two rows of holding plates each for holding a plurality of preforms; supporting and conveying means for conveying the two rows of holding plates into a blow molding station while slidably supporting the holding plates so that the row pitch in the rows is variable; two rows of blow molds arranged in the blow molding station corresponding to the two rows of holding plates, each row of the blow molds being adapted to blow mold the preforms; and a linkage for changing and setting the row pitch in the rows of holding plates.

Abstract: An improved modular mold having adjustable height shims provided between upper and lower panel sections to adjust the volume and height of a PET beverage bottle. The shims are easily replaced and form part of a high strength mold set which accepts customized shoulder and base portions.

Abstract: A molding apparatus for making a hollow pressurized pulse dampener including a fixed platen having a primary member extending from the fixed platen and a secondary member including a centrally disposed aperture and a second mold surface to define a mold cavity for molding an intermediate member. The primary member extends through the centrally disposed aperture of the secondary member and includes a distal terminal end which includes a first mold surface for molding a pulse dampener. The first mold surface is disposed recessed within the secondary member such that the secondary member is moveable with respect to the primary member to present the first mold surface in the mold cavity to define the pulse dampener from the intermediate member. The secondary member includes means for continuously, positively and precisely pressurizing the mold cavity and the intermediate member until the first mold surface is presented within the cavity to mold the pulse dampener.

Abstract: Apparatus includes a blow mold for forming a hollow plastic article forming a parison including at least reciprocable mold portions affixed to platens, wherein the mold portions are relatively movable from an open to a closed position including a spacing bar contacting the platens in the mold closed position operative to space apart the mold portions in the closed position thereof to form a controlled vent therebetween.

Abstract: The present invention discloses a blow mold for forming a hollow plastic article from a parison including at least two relatively reciprocable mold portions which form a mold cavity therebetween having a shape of the desired hollow plastic article, and a toggle mechanism for relatively moving the mold portions from a first open position to a second position wherein the mold portions are in contacting relationship to a third position wherein the mold portions are spaced apart to form a controlled vent therebetween.

Abstract: Molds are exchanged by moving a carrier loaded with a cradle between below a mold fitting position of a blow molding apparatus and the mold carrying in and out position. The cradle for supporting the mold is provided with an air blowing means for letting an air into a parison at the time of molding.

Abstract: An apparatus for forming a hollow container from a hot closed-end parison includes injection molding a hot-closed-end parison, adjusting the temperature of the hot closed-end parison by heating or cooling the hot closed-end parison by heating in a predetermined location within a temperature adjusting pot in a temperature adjusting device. The parison is then blow-molded into a hollow container having a predetermined configuration after the parison has been adjusted in temperature. The temperature adjusting operation uses at least either of the temperature adjusting pot or a temperature adjusting core in the temperature adjusting device so as to apply a pre-treatment, such as by clamping, to a portion of the hot closed-end parison for obtaining the predetermined concavo-convex pattern in the hollow container formed at the subsequent blowing step. Thus, a hollow container, a portion of which has the desired concavo-convex pattern, can be mass-produced simply and inexpensively.

Abstract: The apparatus includes advancement clamps which move two mutually facing films along an advancement direction on which the following are arranged in sequence: two welding half-molds, which by mutually welding the two films in preset regions define cells which are open toward a longitudinal edge of the films; two half-molds for heating the welded films; a cell forming station. Air injection nozzles, inserted between the two flaps of the films on the side of the above mentioned longitudinal edge, and two forming half-molds, in which forming cavities are defined at the cells, operate in the forming station. Divaricators for divaricating the two flaps of the films are provided proximate to the forming station so as to facilitate the insertion of the air injection nozzles.

Abstract: A detaching and attaching device is provided at one end side of a carrier which moves between below the parts fitting position and the parts carrying in and out position and a transferring device is provided at the other end side. Articles are attached to and detached from an object of attachments by moving the carrier toward below the parts fitting position and by the detaching and attaching device. At this time, by working the transferring device, while detached articles are received from the detaching and attaching device, articles to be fitted are delivered to the detaching and attaching device.

Abstract: A mold for plastic bottles is designed to have an internal arithmetic average of roughness height of a cavity-forming wall to be less than 0.25 .mu.m. The mold has air passages for decompressing air in the cavity and absorbing the air between the wall and a parison expanded by blowing into it. The mold has air suction passages around the mouth portion of the mold and between the main body and the bottom portion of the mold. The surface of the bottle and the molds have so little air stagnated between the mold and the bottle wall that the resulting bottle results in a high gloss.

Abstract: An injection stretch blow molding apparatus performs a cycle of molding steps by circulating a plurality of neck mold sets for holding the neck portions of preforms. In a first portion of the operating sequence, a neck mold used in the injection molding stage to mold a preform, is conveyed from one end of a horizontal path of movement for conveying said neck mold to the stretch blow molding stage disposed at the other end of the horizontal path of movement. In a second portion of the operation sequence a neck mold, from which a blow molded product has been ejected in the ejection stage, offset vertically from the middle of the horizontal path of movement, is returned back to the injection molding stage, which is empty, through a vertical path of movement connecting the horizontal path of movement with the ejection stage and through the horizontal path of movement, after the first portion of the operating sequence has started.

Abstract: An extrusion blow molding machine including an extruder and an extrusion die head, the extruder and extrusion die head carried on a carriage member. The carriage member is movable linearly along an extruder support frame of generally rectangular configuration, the extruder support frame extending laterally outwardly beyond a supporting mold clamp support frame that is adapted to support a movable blow mold. The carriage is shiftable in a horizontal direction so that the extrusion head can be selectively positioned above the blow mold when in an operating position, and can be shifted laterally outwardly in one direction to be positioned beyond the mold clamp support frame when in an inoperative position, to provide convenient access to the extrusion head from below for purposes of maintenance, cleaning, and the like.

Abstract: An apparatus is provided for forming a collapsed and folded thin-walled container. In collapsed and folded form, the container has first and second folded portions concentrically adjacent one another in generally surrounding relationship to tapered shoulder and reduced diameter neck portions of the container. The apparatus includes inner and outer, concentrically arranged and relatively movable pusher members for forming the first and second folded portions, respectively.

Abstract: This relates to a labeller for applying simultaneously two labels to a dual cavity mold half. The labeller is especially constructed to receive a pair of labels from a pair of adjacent label magazines and then move one of the labels towards the other so as to reduce the overall width of the pair of labels. This permits the pair of labels to be moved between a pair of mold halves within the limited space available and thereafter be rotated for alignment with the dual cavities of the mold half for positioning within the dual cavities. Basically speaking, the labeller includes a support member having mounted thereon a pair of carriers for separate movement towards and away from one another. The carriers are moved such that one normally remains fixed after a label is picked up by pickup heads carried thereby while the other carrier is moved towards the first carrier so as to move the labels together.

Abstract: This relates to a returnable/refillable container in the form of a blow molded polyester biaxially oriented bottle wherein the container includes a domed base construction wherein the wall thickness gradually and smoothly increases to a maximum at the center of the dome. This also relates to a specially configurated preform which is blow molded to form the container and a specially configurated blow mold cavity for receiving a preform having a lower axial projection in the form of an elongated gate without crushing.

Abstract: An in-mold label dispenser for a blow molding machine having a dispensing head mounted on a base for movement along a first path from adjacent a label magazine to between the open sections of a mold. The label carrier is mounted on the dispensing head for movement along a second path substantially transverse to the first path from a retracted to an extended position. A drive mechanism is mounted in the base for moving the dispensing head along the first path and the label carrier along the second path in co-ordination with the opening of the mold. An adjustable stop assembly is provided on the label carrier for stopping movement of the label carrier along the second path after the label carrier has moved a sufficient distance into the mold section to establish a gap of predetermined width between the label and the wall of the mold cavity.

Abstract: The apparatus for making a multi-layer plastic bottle with a handle for holding liquids and the like which includes molds enclosing a hollow parison of molten plastic which is at a blow molding temperature, pinching a portion of the hollow parison as the mold closes to form a hollow moil portion and neck portion, simultaneously pinching a portion of the hollow parison to form a hollow handle portion while leaving a portion of the parison to provide a passage from the moil portion to the handle portion and thereafter expanding the parison through the moil portion to form the container.

Abstract: A mold for controlling the weight and wall thickness distribution in a blow molded plastic manufactured article or a family or related articles involves simultaneous formation of the manufactured article and a waste article. The waste article is removed and recycled to manufacture further articles. The waste article forming chamber increases the apparent depth of the manufactured article chamber to create a larger apparent surface area, so that the parison is being blown over a much larger surface area, creating a reduced actual part weight and actual wall thickness.

Abstract: The present invention provides a blow molding apparatus which conveys preforms to a blow molding stage while holding the preform by two rows of supporting plates, places the preforms in two rows of blowing molds disposed corresponding to the supporting plates, blow molding the preform into hollow containers when the blowing molds are in their closed positions, thereafter opening the blowing molds to remove the molded containers therefrom. In this blow molding apparatus the row pitch between the supporting plates is changed between one when the blowing molds are opened and another when the blowing molds are in the other conditions. In this apparatus, the row pitch between the supporting plates is not required to maintain the maximum pitch when the blowing molds are opened. Thus, the blow molding system may be reduced in size and occupying area.

Abstract: A label transfer assembly providing for in-mold labeling of blow molded articles in blow molding machinery. A label carrier is utilized which includes means for individually receiving labels from a label storage magazine. Once loaded with labels, the label carrier is moved to a position adjacent a placement assembly. The labels are removed from the carrier by the placement assembly which includes arms that transfer the labels to positions in mold cavities in the machinery. During molding, the labels will become fused to the surfaces of the blow molded articles.

Abstract: This invention relates to an inspection system for a container made of synthetic resin, including a first container conveying station provided with a plurality of container holders arranged around the circumference of a rotary disc with predetermined spaces; a container feeding station for feeding the containers to a container conveying passage of the first container conveying station with the interval equal to that between the adjacent holders; a first inspecting station for inspecting the existence of the heat resistant resin of the container; a second inspecting station for inspecting the wall thickness of the container; a second container conveying station provided with a container receiving end portion for receiving the container determined to be a good product by the inspections of the first and second inspecting stations and conveying the container externally of the first container conveying station; and a first container discharging station for discharging a container judged to be a faulty product by

Abstract: A latch member of a case or similar container blow-molded from thermoplastic material is pivotally and permanently secured to the case by a bearing formed substantially simultaneously with and from the same thermoplastic material as the body of the case. Formation of a permanent bond between the bearing member and the latch member is avoided by employing a latch member formed of material having a higher melt temperature than the material used in the formation of the main body of the case and the bearing member, and also by effecting relative movement between the latch member and the bearing member while the thermoplastic material forming the bearing member is still in a heated condition. Apparatuses for positioning the latch member within the mold are also disclosed.

Abstract: The apparatus includes a blow mold for forming a hollow plastic article from a parison including at least two reciprocable mold portions movable from an open position to a closed position, a holding device for holding the parison within the blow mold, and first and second locking portions affixed to the holding device and blow mold portions, respectively, engagable with each other when the blow mold portions are in a closed position to align and clamp the holding device to the blow mold, whereby blowing force is transmitted to the engaged locking portions.

Abstract: A mold for producing thermoplastic pieces by blow process, which pieces are used for storing liquid and solid materials, having two equal symmetrical parts (1) and (1'), each of which is formed by a vertical plate (2) and provided with extensions (3), adjacent the upper and lower edges of the plate (2). Screws (4) which are screwed into holes (5), provided in one lateral edge of another plate (6), and is allowed to slide along channels (7); the plate (2) is provided with a slit (8) through which the screw (9) passes over plate (6) and is screwed into the hole (10) provided on another plate (11) which is orthogonal to plates (2) and (6).

Abstract: A preform carrying apparatus including: a rotary disk; a fixed plate disposed opposite to the rotary disk; first and second cams provided on the fixed plate; a support arm which can freely expand and contract in the radial direction from the rotary disk, the base end of which is rockably supported by the rotary disk, and which is provided with a first cam follower which is guided by the first cam and a second cam follower which is guided by the second cam; and a coupling disposed at the forward end of the support arm so as to removably support the neck portion of the preform. The support arm is expanded and contracted in the longitudinal direction in accordance with the trailing position of the first cam follower and rocked around the base end as the fulcrum in accordance with the trailing position of the second cam follower. The feeding of the preform can be accelerated, decelerated or stopped during the continuous rotation of the rotary disk.

Abstract: An in-mold labeling system includes an in-mold labeling apparatus and rotary label transfer apparatus for withdrawing labels from label magazines and presenting the labels for pick up by the in mold labeling apparatus.

Abstract: An injection blow tool for synthetic plastic injection casting machine has a casting matrix with a plurality of casting molds, an associated matrix movable relative to the casting matrix and provided with mold cores corresponding to the casting molds, the matrix with the mold cores being formed as a turning body, a support supporting the turning body turnable about a turning angle of at least 90.degree. relative to the casting matrix, the support being arranged between the casting matrix and a displaceable blow matrix so that mold cores arranged at a side of the turning body are inserted in the casting molds of the casting matrix and mold cores arranged at the opposite side of the turning body are simultaneously inserted in the blowing molds of the blowing matrix, and simultaneously an injection casting process step and a blowing process step are performed.

Abstract: In an apparatus for making hollow plastic articles in which a label is positioned in each of a plurality of spaced partible molds in a predetermined array, preforms are positioned in each set of partible molds and the molds are closed and the preforms are blown outwardly to the confines of the molds to apply the labels to the resultant hollow plastic articles.