CN115782132A - Hollow plastic product forming machine capable of quickly changing mold - Google Patents
Hollow plastic product forming machine capable of quickly changing mold Download PDFInfo
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- CN115782132A CN115782132A CN202211408846.XA CN202211408846A CN115782132A CN 115782132 A CN115782132 A CN 115782132A CN 202211408846 A CN202211408846 A CN 202211408846A CN 115782132 A CN115782132 A CN 115782132A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 121
- 230000008859 change Effects 0.000 claims abstract description 74
- 230000009471 action Effects 0.000 claims abstract description 36
- 230000001360 synchronised effect Effects 0.000 claims abstract description 30
- 238000007664 blowing Methods 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 230000009467 reduction Effects 0.000 claims description 66
- 230000005540 biological transmission Effects 0.000 claims description 34
- 239000000155 melt Substances 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 11
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000003028 elevating effect Effects 0.000 description 12
- 238000000071 blow moulding Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920000426 Microplastic Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000013409 condiments Nutrition 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 231100000817 safety factor Toxicity 0.000 description 1
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Abstract
A hollow plastic product forming machine capable of quickly changing molds comprises an upper platform supporting mechanism; the upper platform is supported on the upper part of the upper platform supporting mechanism, the left end of the upper platform is provided with a die head lower part abdicating hole, the right end of the upper platform is provided with a feeding mechanism, and a hollow plastic product blowing die head is arranged at the position corresponding to the die head lower part abdicating hole; the left die frame, the right die fixing frame and the right die fixing frame drive the acting cylinder frame; the right half mould fixing frame drives the acting cylinder; the method is characterized in that: the mould changing moving trolley and the mould changing moving trolley driving mechanism form a rolling pair, the mould changing moving trolley driving mechanism is arranged at the right end of the mould changing moving trolley, and the lower parts of the left mould frame, the right mould fixing frame and the right mould fixing frame driving action cylinder frame and the upper surface of the mould changing moving trolley form a sliding pair; the synchronous mechanism is supported on the die-changing moving trolley. The advantages are that: the die change is conveniently and quickly implemented, and the safety accidents are avoided.
Description
Technical Field
The invention belongs to the technical field of plastic product forming machinery, and particularly relates to a hollow plastic product forming machine capable of quickly changing a mold.
Background
Typical examples of hollow plastic articles mentioned above are plastic bottles for packaging food, beverages, condiments, cosmetics, pharmaceuticals, etc., and also various types of palletized drums, jars, tanks, trays (e.g. CN102407967B, CN103253442A and CN 102009774B), etc., and machines for blow molding, not being limited to the exemplary type of such plastic articles, are generally referred to by the industry in a colloquial manner as "hollow plastic article molding machines" and also simply as "blow molding machines".
Technical information relating to hollow plastic forming machines, such as CN2160528Y (fully automatic hollow plastic container stretch blow molding machine), CN2183870Y (semi-automatic hollow plastic container stretch blow molding machine), CN2183871Y (fully automatic hollow plastic container stretch blow molding machine), CN2204708Y (plastic bottle forming machine), CN2300500Y (hollow plastic container forming machine), CN2314928Y (bottle blowing mold of bidirectional stretch blow molding machine), CN2680445Y (hollow plastic container blowing method and apparatus), and CN105150218B (robot of hollow plastic product blow molding machine), can be found in the published chinese patent documents.
As known in the art, when a mold needs to be replaced with a corresponding mold according to the difference of hollow plastic products, in the prior art, when the mold is replaced, the upper platform, the extrusion mechanism (i.e., the extruder) and the die head mounted thereon are together retracted from the mold frame (i.e., the left and right mold frames) located therebelow, so as to leave a space for detaching and removing the mold oppositely disposed between the left and right mold frames, and then the molds (i.e., the left mold half and the right mold half) to be used for blow molding another hollow plastic product are fixed between the left and right mold frames in a state that the mold cavities thereof are opposite to each other, for example, the left mold half is fixed on the right side of the left mold frame, and the right mold half is fixed on the left side of the right mold frame, for this, refer to patent documents such as CN 1107429A (frame structure of a plastic product molding machine). After the die change operation is finished, the upper platform, the extrusion mechanism and the die head are returned to the state of being emptied, which corresponds to the upper part of the left die and the right die. The defects of the mode changing mode are as follows: compared with a medium-sized, especially large-sized hollow plastic product forming machine, the height of the upper platform is as high as about 4 meters, so that great potential safety hazards exist in the process of retreating during die change and returning after the die change is completed. According to a well-known reason, safety factors of enterprises in the production process are higher than all, and from the viewpoint, even if the potential safety hazard exists, the potential safety hazard must be completely eliminated. The technical solutions described below have been created in this context.
Disclosure of Invention
The invention aims to provide a hollow plastic product forming machine which is beneficial to fully ensuring the safety and avoiding accidents without moving an upper platform when a mould is replaced and can quickly replace the mould without interfering and influencing operators in mould replacement operation.
The task of the invention is accomplished by the following steps that the hollow plastic product forming machine capable of quickly changing the mold comprises an upper platform supporting mechanism, a lower platform supporting mechanism and a lower platform supporting mechanism, wherein the upper platform supporting mechanism is supported and fixed on a terrace in a use state; the left end of the upper platform is supported on the upper part of the upper platform supporting mechanism through an upper platform left lifting mechanism, the right end of the upper platform is also supported on the upper part of the upper platform supporting mechanism through an upper platform right lifting mechanism, the left end of the upper platform is provided with a die head lower part abdicating hole which penetrates from the upper surface to the lower surface of the upper platform, a hollow plastic product blowing die head is arranged at a position corresponding to the die head lower part abdicating hole, the lower part of the hollow plastic product blowing die head extends to the lower part of the upper platform through the die head lower part abdicating hole, the right end of the upper platform is provided with a feeding mechanism, and the feeding mechanism is connected and communicated with the hollow plastic product blowing die head; the left die frame is connected with the upper part of the driving action cylinder frame of the right half die fixing frame through an upper pull rod, the lower parts of the driving action cylinder frame of the left die frame and the right half die fixing frame are connected through a lower pull rod, the right half die fixing frame is positioned between the left die frame and the driving action cylinder frame of the right half die fixing frame, and a synchronization mechanism is arranged at a central position between the opposite sides of the lower parts of the driving action cylinder frame of the right half die fixing frame and the right half die fixing frame; a right half mold fixing frame driving action cylinder which is arranged on the right half mold fixing frame driving action cylinder frame in a horizontal state, and a right half mold fixing frame driving action cylinder column of the right half mold fixing frame driving action cylinder is hinged with the central position of the right side surface of the right half mold fixing frame; the device is characterized by also comprising a die change moving trolley, a die change moving trolley driving mechanism and a die change moving trolley guiding mechanism, wherein the die change moving trolley guiding mechanism is arranged on the terrace at a position corresponding to the inner side of the upper platform supporting mechanism, the die change moving trolley and the die change moving trolley guiding mechanism form a rolling pair, the die change moving trolley driving mechanism is arranged at the right end of the die change moving trolley, and the lower parts of the left die frame, the right half die fixing frame and the right half die fixing frame driving action cylinder frame and the upper surface of the die change moving trolley form a sliding pair; the synchronous mechanism is supported on the die-changing moving trolley.
In a specific embodiment of the present invention, the platform support mechanism includes a left front pillar, a left rear pillar, a right front pillar, and a right rear pillar, the left front pillar and the left rear pillar correspond to each other in a longitudinal state in front and rear and a lower end is supported and fixed on the floor in a use state, and an upper end extends upward corresponding to a left end of the upper platform, the right front pillar and the right rear pillar correspond to each other in a longitudinal state in front and rear and a lower end is also supported and fixed on the floor in a use state, and an upper end extends upward corresponding to a right end of the upper platform, wherein the left and right front pillars correspond to each other in left and right, and the left and right rear pillars correspond to each other in left and right; the downward side of the left end of the upper platform is fixed with the upward side of the left mould beam of the upper platform, the downward side of the left mould beam of the upper platform is connected with the left lifting mechanism of the upper platform, the left lifting mechanism of the upper platform is supported and fixed between the upper ends of the left front upright post and the left rear upright post, the downward side of the right end of the upper platform is fixed with the upward side of the right mould beam of the upper platform, the downward side of the right mould beam of the upper platform is connected with the right lifting mechanism of the upper platform, and the right lifting mechanism of the upper platform is supported and fixed between the upper ends of the right front upright post and the right rear upright post; the left die carrier comprises a pull rod left connecting frame and a left half die fixing frame, the right side of the middle part of the pull rod left connecting frame is fixed with the left side of the left half die fixing frame, the lower part of the left half die fixing frame and the upper surface of the die-changing movable trolley form a sliding pair, the right half die fixing frame driving action cylinder frame comprises a pull rod right connecting frame and a pull rod right connecting frame fixing frame, the right side of the middle part of the pull rod right connecting frame is fixed with the left side of the pull rod right connecting frame fixing frame, and the lower part of the pull rod right connecting frame fixing frame and the upper surface of the die-changing movable trolley form a sliding pair; the right half-mold fixing frame is positioned between the left half-mold fixing frame and the pull rod right connecting frame; the right half mould fixing frame driving acting cylinder is arranged on the pull rod right connecting frame in a horizontal state; the upper ends of the left pull rod connecting frame and the right pull rod connecting frame are connected through the upper pull rod, and the lower ends of the left pull rod connecting frame and the right pull rod connecting frame are connected through the lower pull rod; the synchronous mechanism supported on the die-changing moving trolley is arranged in the middle between the left half die fixing frame and the opposite side of the lower part of the pull rod right connecting fixing frame; the left end of the die change travelling car guide mechanism corresponds to the position between the left front upright post and the left rear upright post and extends leftwards to the left position between the left front upright post and the left rear upright post, the right end of the die change travelling car guide mechanism corresponds to the position between the right front upright post and the right rear upright post, and the die change travelling car driving mechanism is arranged on the front side of the right end of the die change travelling car.
In another specific embodiment of the present invention, the left front pillar is formed with a left front pillar cavity, the left rear pillar is formed with a left rear pillar cavity, the right front pillar is formed with a right front pillar cavity, and the right rear pillar is formed with a right rear pillar cavity; the upper platform left lifting mechanism comprises an upper platform left lifting driving motor, an upper platform left lifting driving reduction gearbox, an upper platform left lifting rear gearbox, a gearbox left synchronous transmission shaft and an upper platform left lifting front gearbox, the upper platform left lifting driving motor is in transmission fit with the upper platform left lifting driving reduction gearbox and is fixed on an upper platform left lifting driving reduction gearbox seat by the upper platform left lifting driving reduction gearbox and the upper platform left lifting driving motor, the upper platform left lifting driving reduction box seat is fixed with the top of the left rear upright post, the upper platform left lifting driving reduction box is in transmission connection with an upper platform left lifting rear gear box, the upper platform left lifting rear gear box is arranged on the upper platform left lifting driving reduction box seat, the upper end of an upper platform left lifting rear gear box screw rod of the upper platform left lifting rear gear box extends out of the upper platform left lifting rear gear box and is fixed with one side of the rear end of the upper platform left mould beam facing downwards, a screw rod of the upper platform left lifting rear gear box penetrates through the upper platform left lifting driving reduction box seat and extends downwards into a left rear upright cavity of the left rear upright, a gear box left synchronous transmission shaft is connected between the upper platform left lifting rear gear box and the upper platform left lifting front gear box in a transmission manner, the upper platform left lifting front gear box is fixed with the top of the left front upright post through an upper platform left lifting front gear box seat, the upper end of an upper platform left lifting front gear box screw of the upper platform left lifting front gear box extends out of the upper platform left lifting front gear box and is fixed with one downward side of the front end of the upper platform left mould beam, the lower end of the screw rod of the left lifting front gearbox of the upper platform penetrates through the left lifting front gearbox seat of the upper platform and extends downwards into a left front upright cavity of the left front upright; the upper platform right lifting mechanism comprises an upper platform right lifting driving motor, an upper platform right lifting driving reduction gearbox, an upper platform right lifting rear gearbox, a gearbox right synchronous transmission shaft and an upper platform right lifting front gearbox, the upper platform right lifting driving motor is in transmission fit with the upper platform right lifting driving reduction gearbox and is fixed on an upper platform right lifting driving reduction gearbox seat by the upper platform right lifting driving reduction gearbox and the upper platform right lifting driving motor, the upper platform right lifting driving reduction box seat is fixed with the top of the right rear upright post, the upper platform right lifting driving reduction box is in transmission connection with an upper platform right lifting rear gear box, the upper platform right lifting rear gear box is arranged on the upper platform right lifting driving reduction box seat, the upper end of an upper platform right lifting rear gear box screw rod of the upper platform right lifting rear gear box extends out of the upper platform right lifting rear gear box and is fixed with one side of the rear end of the upper platform right mould beam facing downwards, the screw rod of the upper platform right lifting rear gear box penetrates through the upper platform right lifting driving reduction box seat and extends downwards into the right rear upright cavity of the right rear upright, the gear box right synchronous transmission shaft is connected between the upper platform right lifting rear gear box and the upper platform right lifting front gear box in a transmission way, the upper platform right lifting front gear box is fixed with the top of the right front upright post through an upper platform right lifting front gear box seat, the upper end of an upper platform right lifting front gear box screw of the upper platform right lifting front gear box extends out of the upper platform right lifting front gear box and is fixed with one side of the front end of the upper platform right mould beam facing downwards, and the lower end of the upper platform right lifting front gearbox screw passes through the upper platform right lifting front gearbox seat and extends downwards into a right front upright cavity of the right front upright.
In another specific embodiment of the present invention, a right synchronization rod abdicating hole is opened at the central position of the lower part of the right half mold fixing frame, a left synchronization rod abdicating hole is opened at the central position of the lower part of the pull rod right connecting frame fixing frame, the synchronization mechanism comprises a gear pivot box body, a left synchronization rod and a right synchronization rod, the gear pivot box body is fixed on the mold-changing moving trolley at the position corresponding to the position between the right half mold fixing frame and the pull rod right connecting frame, a synchronization rod gear is rotatably arranged in the gear pivot box body cavity of the gear pivot box body through a synchronization rod gear shaft, the upper end and the lower end of the synchronization rod gear shaft are respectively rotatably supported on the box top wall and the box bottom wall of the gear pivot box body through bearings, a first through hole i of the left box wall synchronization rod is opened in front of the left box wall of the gear pivot box body, a left box wall synchronous rod second through hole II is arranged at the rear part of the left box wall, a right box wall synchronous rod first through hole I is arranged in front of the right box wall of the gear pivot box body and at the position corresponding to the left box wall synchronous rod first through hole I, a right box wall synchronous rod second through hole II is arranged at the rear part of the right box wall and at the position corresponding to the left box wall synchronous rod second through hole II, a left synchronous rod tooth is formed at one side of the left synchronous rod facing to the synchronous rod gear, the left end of the left synchronous rod is fixed with the left half-die fixing frame at the middle position corresponding to the lower part of the left half-die fixing frame, the right end of the left synchronous rod sequentially passes through the left box wall synchronous rod first through hole I, the gear pivot box cavity and the right box wall synchronous rod first through hole I to extend out of the gear pivot box cavity and correspond to the left synchronous rod abdicating hole, left side synchronizing bar tooth with the synchronizing bar gear meshes mutually, at right synchronizing bar orientation one side of synchronizing bar gear constitutes there is right synchronizing bar tooth, and the right-hand member of right synchronizing bar is corresponding to the lower part of mount is connected on the pull rod right side the position placed in the middle of connected with the mount is fixed on the pull rod right side, and the left end of right synchronizing bar passes in proper order right side tank wall synchronizing bar second through hole II, gear pivot put the box body chamber and left tank wall synchronizing bar second through hole II and extend to the gear pivot put the box body chamber outside and with right synchronizing bar abdication hole is corresponding, right synchronizing bar tooth with the synchronizing bar gear meshes mutually.
In a further specific embodiment of the present invention, the mold changing moving trolley guide mechanism comprises a moving trolley front roller guide rail and a moving trolley rear roller guide rail, the moving trolley front roller guide rail and the moving trolley rear roller guide rail are kept parallel to each other in the length direction, the left ends of the moving trolley front roller guide rail and the moving trolley rear roller guide rail correspond to between the left front upright post and the left rear upright post and extend leftward to the left between the left front upright post and the left rear upright post, the right ends of the moving trolley front roller guide rail and the moving trolley rear roller guide rail correspond to between the right front upright post and the right rear upright post, the moving trolley front roller guide rail is arranged at an interval at the bottom in the length direction of the moving trolley front roller guide rail and the facing side of the left end portion of the moving trolley rear roller guide rail and the facing side of the right end portion of the moving trolley front roller guide rail and the moving trolley rear roller guide rail, the moving trolley front roller guide rail is arranged at an interval at the bottom in the length direction of the moving trolley rear roller guide rail, the moving trolley rear roller guide rail is arranged at an interval at a fixed seat, and the moving trolley front roller guide rail is fixed on the floor of the moving trolley rear roller guide rail; the die change moving trolley driven by the die change moving trolley driving mechanism, the moving trolley front roller guide rail and the moving trolley rear roller guide rail form a rolling pair.
In still another embodiment of the present invention, the mold changing traveling carriage is in a shape of a plurality of repeated cycles, and a traveling carriage roller seat is fixed on each of the front side surface in the length direction and the rear side surface in the length direction of the mold changing traveling carriage at intervals, a traveling carriage roller is rotatably disposed on the traveling carriage roller seat, a traveling carriage roller on the traveling carriage roller seat on the front side surface of the mold changing traveling carriage and the traveling carriage front roller guide rail form a rolling pair, and a traveling carriage roller seat traveling carriage roller on the rear side surface of the mold changing traveling carriage and the traveling carriage rear roller guide rail form a rolling pair; the driving mechanism of the die changing travelling car is arranged at the right end of the front side surface of the die changing travelling car.
In a more specific embodiment of the present invention, the mold change traveling carriage driving mechanism includes a mold change traveling carriage driving motor and a mold change traveling carriage driving reduction gear box, the mold change traveling carriage driving motor is in transmission fit with the mold change traveling carriage driving reduction gear box and the mold change traveling carriage driving reduction gear box are arranged on a mold change traveling carriage roller seat located at the right end of the front side surface of the mold change traveling carriage, and the traveling carriage roller on the traveling carriage roller seat at the right end is fixed with the mold change traveling carriage driving reduction gear box shaft of the mold change traveling carriage driving reduction gear box; the driving motor of the die-changing moving trolley is a motor with a positive and negative rotation function.
In a further specific embodiment of the invention, a left half mold fixing frame front sliding block guide rail, a right half mold fixing frame front sliding block guide rail and a pull rod right connecting frame fixing frame front sliding block guide rail are fixed on the upper surface of the front side of the mold changing travelling trolley in the length direction at intervals from left to right, a left half mould fixing frame rear sliding block guide rail, a right half mould fixing frame rear sliding block guide rail and a pull rod right connecting fixing frame rear sliding block guide rail are also fixed on the upper surface of the rear side of the length direction of the mould changing moving trolley at intervals from left to right, a left half die fixing frame front sliding block is fixed at the bottom of the front side of the left half die fixing frame, a left half die fixing frame rear sliding block is fixed at the bottom of the rear side of the left half die fixing frame, the left half die fixing frame front sliding block and the left half die fixing frame front sliding block guide rail form a sliding pair, the left half die fixing frame rear sliding block and the left half die fixing frame rear sliding block guide rail form a sliding pair, a right half mould fixing frame front sliding block is fixed at the front side bottom of the right half mould fixing frame, a right half mould fixing frame rear sliding block is fixed at the rear side bottom of the right half mould fixing frame, the right half mould fixing frame front sliding block and the right half mould fixing frame front sliding block guide rail form a rolling pair, the right half mould fixing frame rear sliding block and the right half mould fixing frame rear sliding block guide rail form a sliding pair, a front sliding block of the pull rod right connecting frame fixing frame is fixed at the bottom of the front side of the pull rod right connecting frame fixing frame, a rear sliding block of the right pull rod connecting frame fixing frame is fixed at the bottom of the rear side of the right pull rod connecting frame fixing frame, a front sliding block of the right pull rod connecting frame fixing frame and a front sliding block guide rail of the right pull rod connecting frame fixing frame form a sliding pair, and the rear sliding block of the fixed frame of the right connecting frame of the pull rod and the guide rail of the rear sliding block of the fixed frame of the right connecting frame of the pull rod form a sliding pair.
In a still more specific embodiment of the present invention, the right mold half fixing frame driving acting cylinder is an oil cylinder.
In yet another specific embodiment of the present invention, the feeding mechanism comprises an extruder, a feeding hopper, a melt delivery pipe and a heater, the extruder is arranged on the upward side of the right end of the upper platform through a support, the feeding hopper is arranged at the right end of the melt delivery pipe, the melt delivery pipe is connected between the hollow plastic product blowing die head and the extruder, and the heater is enveloped in the middle of the melt delivery pipe.
The technical scheme provided by the invention has the technical effects that: because a die change moving trolley, a die change moving trolley driving mechanism and a die change moving trolley guiding mechanism are additionally arranged, when a left half die and a right half die used by a hollow plastic container to be blown and molded are replaced, the die change moving trolley driving mechanism enables the die change moving trolley to move leftwards on the die change moving trolley guiding mechanism, a left die frame, a right die fixing frame and a right die fixing frame driving action cylinder frame which are arranged by taking the die change moving trolley as a carrier move leftwards along with the die change moving trolley so as to avoid the blocking of the left end of an upper platform, the interference influence on operators for die change operation and hoisting facilities for hoisting the die can be avoided, the die change can be conveniently and quickly implemented, and the upper platform does not need to be moved during the die change, so that the safety can be fully guaranteed, and the accidents can be avoided.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention.
Fig. 2 is a detailed structural diagram of an upper deck left lifting mechanism and an upper deck right lifting mechanism of the structural system of the upper deck shown in fig. 1.
Fig. 3 is a schematic illustration of fig. 1 with the upper platform support mechanism removed and the upper platform.
Fig. 4 is a schematic view of the synchronization mechanism shown in fig. 1 and 3.
FIG. 5 is a schematic view showing the die-change traveling carriage of the present invention in a die-change state by being displaced leftward.
Detailed Description
In order to make the technical spirit and advantages of the present invention more clearly understood, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the inventive concept, which are merely in form and are not essential, should be considered as the technical scope of the present invention.
In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and back are taken as the position state of fig. 1, and thus, the concepts cannot be understood as being particularly limited to the technical solutions provided by the present invention.
Referring to fig. 1, there is shown an upper platform supporting mechanism 1 of the structural system of the hollow plastic product molding machine capable of rapidly changing molds according to the present invention, wherein the upper platform supporting mechanism 1 is supported and fixed on a terrace in a use state; an upper platform 2 is shown, the left end of the upper platform 2 is supported on the upper part of the upper platform supporting mechanism 1 through an upper platform left lifting mechanism 21, the right end of the upper platform 2 is also supported on the upper part of the upper platform supporting mechanism 1 through an upper platform right lifting mechanism 22, the left end of the upper platform 2 is provided with a die head lower part abdicating hole 23 which penetrates from the upper surface to the lower surface of the upper platform 2, a hollow plastic product blowing die head 24 is arranged at the position corresponding to the die head lower part abdicating hole 23 through a die head support 241, the lower part of the hollow plastic product blowing die head 24 extends to the lower part of the upper platform 2 through the die head lower part abdicating hole 23, the right end of the upper platform 2 is provided with a feeding mechanism 25, and the feeding mechanism 25 is connected and communicated with the hollow plastic product blowing die head 24; a left mould frame 3, a right half mould fixing frame 4 and a right half mould fixing frame driving action cylinder frame 5 are shown, the upper parts of the left mould frame 3 and the right half mould fixing frame driving action cylinder frame 5 are connected by an upper pull rod 10, the lower parts of the left mould frame 3 and the right half mould fixing frame driving action cylinder frame 5 are connected by a lower pull rod 20, the right half mould fixing frame 4 is positioned between the left mould frame 3 and the right half mould fixing frame driving action cylinder frame 5, and a synchronizing mechanism 41 is arranged in the middle position between the opposite sides of the lower parts of the right half mould fixing frame 4 and the right half mould fixing frame driving action cylinder frame 5; a right half mold holder driving action cylinder 6 is shown, the right half mold holder driving action cylinder 6 is disposed on the right half mold holder driving action cylinder holder 5 in a horizontal lying state, and a right half mold holder driving action cylinder post 61 of the right half mold holder driving action cylinder 6 is hinged to a cylinder post hinge seat 45 (shown in fig. 3) at a central position of the right side surface of the right half mold holder 4.
As the technical point of the technical scheme provided by the invention, the structural system of the hollow plastic product forming machine capable of quickly changing the mold also comprises a mold changing moving trolley 7, a mold changing moving trolley driving mechanism 8 and a mold changing moving trolley guiding mechanism 9, wherein the mold changing moving trolley guiding mechanism 9 is arranged on the terrace at a position corresponding to the inner side of the upper platform supporting mechanism 1, the mold changing moving trolley 7 and the mold changing moving trolley guiding mechanism 9 form a rolling pair, the mold changing moving trolley driving mechanism 8 is arranged at the right end of the mold changing moving trolley 7, and the lower parts of the left mold frame 3, the right mold fixing frame 4 and the right mold fixing frame driving action cylinder frame 5 and the upper surface of the mold changing moving trolley 7 form a sliding pair; the synchronizing mechanism 41 is supported by the mold changing carriage 7.
Since the above-mentioned connection manner and function of the upper and lower pull rods 10, 20 belong to the prior art, for example, but not limited to, CN105909591B (fast opening and closing mold cylinder structure of plastic molding machine), the detailed description thereof is omitted.
The platform supporting mechanism 1 comprises a left front upright 11, a left rear upright 12, a right front upright 13 and a right rear upright 14, the left front upright 11 and the left rear upright 12 correspond to each other in a longitudinal state in a front-rear direction and have lower ends supported and fixed on the ground in a use state, while the upper ends extend upward corresponding to the left end of the upper platform 2, the right front upright 13 and the right rear upright 14 correspond to each other in a longitudinal state in a front-rear direction and have lower ends supported and fixed on the ground in a use state, while the upper ends extend upward corresponding to the right end of the upper platform 2, wherein the left and right front uprights 11, 13 correspond to each other in a left-right direction, and the left and right rear uprights 12, 14 correspond to each other in a left-right direction; the downward side of the left end of the upper platform 2 is fixed with the upward side of the left mould beam 26a of the upper platform, the downward side of the left mould beam 26a of the upper platform is connected with the left lifting mechanism 21 of the upper platform, the left lifting mechanism 21 of the upper platform is supported and fixed between the left front upright post 11 and the upper end of the left rear upright post 12, the downward side of the right end of the upper platform 2 is fixed with the upward side of the right mould beam 26b of the upper platform, the downward side of the right mould beam 26b of the upper platform is connected with the right lifting mechanism 22 of the upper platform, and the right lifting mechanism 22 of the upper platform is supported and fixed between the right front upright post 13 and the upper end of the right rear upright post 14; the left mold frame 3 comprises a pull rod left connecting frame 31 and a left half mold fixing frame 32, the right side of the middle part of the pull rod left connecting frame 31 is fixed with the left side of the left half mold fixing frame 32, the lower part of the left half mold fixing frame 32 and the upper surface of the mold changing movable trolley 7 form a sliding pair, the right half mold fixing frame driving acting cylinder frame 5 comprises a pull rod right connecting frame 51 and a pull rod right connecting frame fixing frame 52, the right side of the middle part of the pull rod right connecting frame 51 is fixed with the left side of the pull rod right connecting frame fixing frame 52, and the lower part of the pull rod right connecting frame fixing frame 52 and the upper surface of the mold changing movable trolley 7 form a sliding pair; the right half mold fixing frame 4 is positioned between the left half mold fixing frame 32 and the pull rod right connecting frame 51; the right half mold fixing frame driving acting cylinder 6 is arranged on the pull rod right connecting frame 51 in a horizontal state through a right half mold fixing frame driving acting cylinder fixing seat 62; the upper ends of the left and right tie bar connecting frames 31 and 51 are connected by the upper tie bar 10, and the lower ends of the left and right tie bar connecting frames 31 and 51 are connected by the lower tie bar 20; the synchronizing mechanism 41 supported on the mold changing traveling carriage 7 is arranged at a central position between the left half mold fixing frame 4 and the lower opposite side of the pull rod right connecting fixing frame 52; the left end of the mold changing traveling carriage guide mechanism 9 corresponds to the left between the left front upright post 11 and the left rear upright post 12 and extends leftward to the left between the left front upright post 11 and the left rear upright post 12, the right end of the mold changing traveling carriage guide mechanism 9 corresponds to the right between the right front upright post 13 and the right rear upright post 14, and the mold changing traveling carriage drive mechanism 8 is disposed on the front side of the right end of the mold changing traveling carriage 7. Also shown in fig. 3 are left mold half holder set screws 323 for securing the left mold half holder 32 to the tie rod left link 31.
Referring to fig. 2 in conjunction with fig. 1, the left front pillar 11 forms a left front pillar cavity 111, the left rear pillar 12 forms a left rear pillar cavity 121, the right front pillar 13 forms a right front pillar cavity 131, and the right rear pillar 14 forms a right rear pillar cavity 141; the upper platform left lifting mechanism 21 comprises an upper platform left lifting driving motor 211, an upper platform left lifting driving reduction gearbox 212, an upper platform left lifting rear gear box 213, a gear box left synchronous transmission shaft 214 and an upper platform left lifting front gear box 215, wherein the upper platform left lifting driving motor 211 is in transmission fit with the upper platform left lifting driving reduction gearbox 212 and is fixed on an upper platform left lifting driving reduction gearbox seat 2121 together with the upper platform left lifting driving motor 211, the upper platform left lifting driving reduction gearbox seat 2121 is fixed with the top of the left rear upright post 12, the upper platform left lifting driving reduction gearbox 212 is in transmission connection with the upper platform left lifting rear gear box 213, the upper platform left lifting rear gear box 213 is arranged on the upper platform left lifting driving reduction gearbox seat 2121, the upper end of an upper platform left lifting rear gear box screw 2131 of the upper platform left lifting gear box 213 extends out of the upper platform left lifting rear gear box 213 and is fixed with one side of the rear end of the upper platform left mold beam 26a facing downwards, the upper platform left lifting rear gear box screw 2131 passes through the upper platform left lifting driving reduction box seat 2121 and extends downwards into the left rear upright cavity 121 of the left rear upright 12, the gear box left synchronous transmission shaft 214 is connected between the upper platform left lifting rear gear box 213 and the upper platform left lifting front gear box 215 in a transmission manner, the upper platform left lifting front gear box 215 is fixed with the top of the left front upright 11 through the upper platform left lifting front gear box seat 2151, the upper end of the upper platform left lifting front gear box screw 2152 of the upper platform left lifting front gear box 215 extends out of the upper platform left lifting front gear box 215 and is fixed with the downward side of the front end of the upper platform left mold beam 26a, and the lower end of the upper platform left lifting front gear box screw 2152 passes through the upper platform left lifting front gear box seat 2151 and extends downwards to the front platform left lifting front gear box seat 2151 The left front upright cavity 111 of the left front upright 11; the right upper platform lifting mechanism 22 includes a right upper platform lifting driving motor 221, a right upper platform lifting driving reduction box 222, a right upper platform lifting rear gear box 223, a right gear box synchronizing transmission shaft 224 and a right upper platform lifting front gear box 225, the right upper platform lifting driving motor 221 is in transmission fit with the right upper platform lifting driving reduction box 222 and is fixed on the right upper platform lifting driving reduction box base 2221 by the right upper platform lifting driving reduction box 222 together with the right upper platform lifting driving motor 221, the right upper platform lifting driving reduction box base 2221 is fixed on the top of the right rear upright post 14, the right upper platform lifting driving reduction box 222 is in transmission connection with the right upper platform lifting rear gear box 223, the right upper platform lifting rear gear box 223 is arranged on the right upper platform lifting driving reduction box base 2221, the upper end of the right upper platform lifting rear gear box 223 on the right upper platform lifting rear gear box 223 extends out of the right upper platform lifting rear gear box screw 2231 and is fixed on one side of the right upper platform lifting rear end of the right upper platform lifting rear gear box 223 facing downward, and the upper platform right elevating rear gear box screw 2231 passes through the upper platform right elevating driving reduction box holder 2221 and extends downward into the right rear column cavity 141 of the right rear column 14, the gear box right synchronous transmission shaft 224 is drivingly connected between the upper platform right elevating rear gear box 223 and the upper platform right elevating front gear box 225, the upper platform right elevating front gear box 225 is fixed with the top of the right front column 13 through the upper platform right elevating front gear box holder 2251, the upper end of the upper platform right elevating front gear box screw 2252 of the upper platform right elevating front gear box 225 extends out of the upper platform right elevating front gear box 225 and is fixed with the downward side of the front end of the upper platform right mold beam 22526 b, and the lower end of the upper platform right elevating front gear box screw 2 passes through the upper platform right elevating front gear box holder 2251 and extends downward to the front end of the upper platform right elevating front gear box 2251 The right front pillar cavity 131 of the right front pillar 13. The left and right lifting driving motors 211 and 221 of the upper platform are motors with forward and reverse rotation functions respectively.
Under the synchronous operation of the left and right lifting mechanisms 21, 22 of the upper platform, the upper platform 2 can float upward, i.e. move upward or move downward, as required, so that the blowing head 242 (also called "blowing nozzle") of the blow molding die head 24 for blowing the hollow plastic product is retreated from the upper part of the die assembly position of the left half die 30a and the right half die 30b, which is indicated by the dotted line. Since the left and right lifting mechanisms 21, 22 of the upper platform are operated synchronously and have the same structure, the applicant only describes the operation process of the left lifting mechanism 21 of the upper platform in the following, the left lifting driving motor 211 of the upper platform with the function of forward and reverse rotation operates to drive the left lifting driving reduction gearbox 212 of the upper platform, the left lifting driving reduction gearbox 212 of the upper platform drives the left synchronous transmission shaft 214 of the gear box through the left lifting rear gear box 213 of the upper platform, and then the left synchronous transmission shaft 214 of the gear box drives the left lifting front gear box 215 of the upper platform, in this process, the left lifting rear gear box screw 2131 of the upper platform and the left lifting front gear box screw 2152 of the upper platform synchronously move upwards to push the left mold beam 26a of the upper platform to move upwards, and vice versa.
As shown in fig. 1, a right synchronization bar receding hole 42 is formed in the center of the lower portion of the right half-mold fixing frame 4, and a left synchronization bar receding hole 521 is formed in the center of the lower portion of the right tie-bar connecting frame fixing frame 52.
Referring to fig. 4 in conjunction with fig. 1 and 3, the synchronizing mechanism 41 includes a gear pivot housing 411, a left synchronizing bar 412 and a right synchronizing bar 413, the gear pivot housing 411 is fixed to the mold changing carriage 7 at a position corresponding to a position between the right mold half fixing frame 4 and the pull rod right connecting frame 51, a synchronizing bar gear 4112 is rotatably provided in a gear pivot housing chamber 4111 of the gear pivot housing 411 through a synchronizing bar gear shaft 41121, an upper end and a lower end of the synchronizing bar gear shaft 41121 are rotatably supported on a top wall and a bottom wall of the gear pivot housing 411 through bearings, respectively, or the synchronizing bar gear 4112 is rotatably provided in a middle portion of the synchronizing bar gear shaft 41121 through a bearing, and an upper end and a lower end of the synchronizing bar gear shaft 41121 are non-rotatably supported on the top wall and the bottom wall of the gear pivot housing 411, respectively. A first through hole I4113 for the left box wall synchronizing rod is arranged in front of the left box wall of the gear pivoting box 411, and a second through hole II 4114 of the left box wall synchronizing rod is arranged at the rear part of the left box wall, a right box wall synchronizing rod first passing hole I4115 is arranged in front of the right box wall of the gear pivoting box 411 and at a position corresponding to the left box wall synchronizing rod first passing hole I4113, a right tank wall synchronizing rod second through hole II 4116 is arranged behind the right tank wall and at a position corresponding to the left tank wall synchronizing rod second through hole II 4114, a left synchronizing bar tooth 4121 is formed on a side of the left synchronizing bar 412 facing the synchronizing bar gear 4112, a left end of the left synchronizing bar 412 is fixed to the left half mold holder 4 at a central position corresponding to a lower portion of the left half mold holder 4, a right end of the left synchronizing bar 412 sequentially passes through the left tank wall synchronizing bar first passing hole I4113, the gear pivot tank cavity 4111 and the right tank wall synchronizing bar first passing hole I4115 to extend out of the gear pivot tank cavity 4111 and correspond to the left synchronizing bar relief hole 521, the left synchronizing bar tooth 4121 is engaged with the synchronizing bar gear 4112, a right synchronization rod tooth 4131 is formed on a side of the right synchronization rod 413 facing the synchronization rod gear 4112, a right end of the right synchronization rod 413 is fixed to the right tie rod connection holder 52 at a central position corresponding to a lower portion of the right tie rod connection holder 52, a left end of the right synchronization rod 413 sequentially passes through the right tank synchronization rod second through hole ii 4116, the gear pivot tank cavity 4111 and the left tank synchronization rod second through hole ii 4114 to extend out of the gear pivot tank cavity 4111 and correspond to the right synchronization rod relief hole 42, and the right synchronization rod tooth 4131 is engaged with the synchronization rod gear 4112.
As shown in fig. 1, 3 and 4, the left and right synchronizing bars 412 and 413 are located on the same horizontal plane and are engaged with the front and rear sides of the synchronizing bar gear 4112, respectively.
Please refer to fig. 1, the mold changing mobile car guide mechanism 9 includes a mobile car front roller guide rail 91 and a mobile car rear roller guide rail 92, the mobile car front roller guide rail 91 and the mobile car rear roller guide rail 92 are kept parallel to each other in the length direction, the left ends of the mobile car front roller guide rail 91 and the mobile car rear roller guide rail 92 correspond to the space between the left front upright post 11 and the left rear upright post 12 and extend to the left side between the left front upright post 11 and the left rear upright post 12, the right ends of the mobile car front roller guide rail 91 and the mobile car rear roller guide rail 92 correspond to the space between the right front upright post 13 and the right rear upright post 14, a mobile car front roller guide rail 911 is arranged at the bottom of the mobile car front roller guide rail 91 and the left end of the mobile car rear roller guide rail 92 and a guide rail adjusting connecting rod 93 is arranged between the opposite sides of the ends of the mobile car front roller guide rail 91 and the mobile car rear roller guide rail 92, a mobile car front roller guide rail 911 is arranged at the bottom of the movable car rear roller guide rail 92, a mobile car rear roller guide rail 92 is arranged at the bottom of the space, a mobile car rear roller guide rail 921 is arranged under the fixed on the floor, and a mobile car rear roller guide rail 921 is arranged under the fixed seat, and a floor roller guide rail is arranged under the floor roller guide rail fixed on the floor; the mold changing traveling carriage 7 driven by the mold changing traveling carriage driving mechanism 8, the traveling carriage front roller guide rail 91, and the traveling carriage rear roller guide rail 92 constitute a rolling pair.
As shown in fig. 1, the mold changing carriage 7 is in a plurality of circular and repeated patterns, that is, in a horizontal pattern, that is, in a 90 ° deflection, and a carriage roller seat 71 is fixed to each of the front side surface in the length direction and the rear side surface in the length direction of the mold changing carriage 7 at intervals, a carriage roller 711 is rotatably provided on the carriage roller seat 71, a carriage roller 711 on the carriage roller seat 71 on the front side surface of the mold changing carriage 7 and the carriage front roller guide rail 91 form a rolling pair, and a carriage roller seat 71 on the rear side surface of the mold changing carriage 7 and the carriage rear roller guide rail 92 form a rolling pair; the driving mechanism 8 is disposed at the right end of the front side of the mold changing carriage 7.
Referring to fig. 3 in combination with fig. 1 and 5, the mold changing traveling car driving mechanism 8 includes a mold changing traveling car driving motor 81 and a mold changing traveling car driving reduction gear 82, the mold changing traveling car driving motor 81 is in transmission fit with the mold changing traveling car driving reduction gear 82, and the mold changing traveling car driving reduction gear 82 and the mold changing traveling car driving motor 81 are disposed on one of the traveling car roller seats 71 located at the right end of the front side of the mold changing traveling car 7, and the traveling car roller 711 on the one of the traveling car roller seats 71 at the right end is fixed to a mold changing traveling car driving reduction gear shaft, i.e., a reduction gear power output shaft, of the mold changing traveling car driving reduction gear 82; the driving motor 81 of the mold changing moving trolley is a motor with forward and reverse rotation functions.
With reference to fig. 1 and fig. 3, a left half-mold holder front slider guide 72a, a right half-mold holder front slider guide 72b and a tie-bar right-link holder front slider guide 72c are fixed on the front upper surface of the mold-changing moving carriage 7 at intervals from left to right, a left half-mold holder rear slider guide 73a, a right half-mold holder rear slider guide 73b and a tie-bar right-link holder rear slider guide 73c are also fixed on the rear upper surface of the mold-changing moving carriage 7 at intervals from left to right, a left half-mold holder front slider 321 is fixed on the front bottom of the left half-mold holder 32, a left half-mold holder rear slider 322 is fixed on the rear bottom of the left half-mold holder mounting 32, the left half-mold holder front slider 321 forms a sliding pair with the left half-mold holder front slider guide 72a, the left half-mold rear slider 322 forms a sliding pair with the left half-mold holder rear slider guide 73a, a right half mold fixing frame front sliding block 43 is fixed at the front side bottom of the right half mold fixing frame 4, a right half mold fixing frame rear sliding block 44 is fixed at the rear side bottom of the right half mold fixing frame 4, the right half mold fixing frame front sliding block 43 and the right half mold fixing frame front sliding block guide rail 72b form a rolling pair, the right half mold fixing frame rear sliding block 44 and the right half mold fixing frame rear sliding block guide rail 73b form a sliding pair, a pull rod right connecting frame fixing frame front sliding block 522 is fixed at the front side bottom of the pull rod right connecting frame fixing frame 52, a pull rod right connecting frame fixing frame rear sliding block 523 is fixed at the rear side bottom of the pull rod right connecting frame fixing frame 52, the pull rod right connecting frame fixing frame front sliding block 522 and the pull rod right connecting frame fixing frame front sliding block guide rail 72c form a sliding pair, and the pull rod right connecting frame fixing frame rear sliding block 523 and the pull rod right connecting frame rear sliding block guide rail 73c form a sliding pair And a sliding pair.
In this embodiment, the right half mold fixing frame driving acting cylinder 6 shown in fig. 1, 3 and 4 is an oil cylinder. However, if the cylinder is used instead of the oil cylinder, the method should be equivalent to the technical means and still fall within the technical scope of the present disclosure.
When the right half mold fixing frame driving acting cylinder 6 extends leftwards, i.e. outwards to the cylinder body, the right half mold fixing frame 4 and the right half mold 30b on the left side thereof are pushed to slide leftwards along the right half mold fixing frame front and rear sliding block guide rails 72b and 73b through the right half mold fixing frame front and rear sliding blocks 43 and 44 on the lower portion thereof, at this time, the left half mold fixing frame 32 and the pull rod left connecting frame 31 and the left half mold 30a fixed on the right side of the left half mold fixing frame 32 slide rightwards under the action of the synchronization mechanism 41 and the upper and lower pull rods 10 and 20, so that the left and right half molds 30a and 30b are closed, otherwise, the same example, i.e. opening the mold, and no repeated description is provided.
Continuing with fig. 1, the feeding mechanism 25 includes an extruder 251, a hopper 252, a melt delivery pipe 253 and a heater 254, the extruder 251 is disposed on the upward side of the right end of the upper platform 2 through a support 2511, the hopper 252 is disposed on the right end of the melt delivery pipe 253, the melt delivery pipe 253 is connected between the hollow plastic product blowing die 24 and the extruder 251, and the heater 254 is enveloped in the middle of the melt delivery pipe 253.
Three sets (but not limited to three sets) of extruders 251 are shown in fig. 1, since it is contemplated that the raw materials for the hollow plastic articles, such as plastic pellets, may be mixed in various ways so that different plastic pellets are fed from respective three, but not limited to three, feeders 252, introduced into the hollow plastic article inflation die 24 by respective melt delivery tubes 253 enveloped, i.e. provided with heaters 254, and then blown by the aforementioned inflation head 242 into the left and right mold halves 30a, 30 b.
Referring to fig. 5, when the blow-molded hollow plastic container product is to be replaced and the left and right mold halves 30a, 30b are replaced accordingly, the tie bar left connecting frame 31, together with the left mold half holder 32 and the left mold half 30a fixed to the right side of the left mold half holder 32 and the right mold half 30b fixed to the left side of the right mold half holder 4, changes from the position state shown in fig. 3 to the position state shown in fig. 1. The specific process is as follows: first, the driving motor 81 of the mold changing carriage is operated to drive the reduction box 82 of the mold changing carriage, and the carriage roller 711 of the carriage roller base 71 of the mold changing carriage 7 follows the rolling of the front and rear rollers 91 and 92 of the carriage to move the mold changing carriage 7 leftward until it assumes the state shown in fig. 5. At this time, the previous left and right mold halves 30a, 30b are respectively unloaded from the left and right mold half holders 32, 4 by an attendant or an equipment attendant and lifted off by a lifting device 50 such as a crane, the mold 40 to be activated is then lifted and carried between the left and right mold half holders 32, 34 by the lifting device 50, and the left and right mold halves of the mold 40 to be activated are respectively fixed to the facing sides of the left and right mold half holders 32, 4 by an on-line worker. After the mold changing operation is completed, the mold changing carriage driving motor 81 is operated in reverse, and the mold changing carriage 7 is returned to the state shown in fig. 3 in accordance with the reverse operation.
From the above, when the mold change is performed in the state shown in fig. 5, on one hand, the mold can be changed conveniently and quickly without being affected by the interference of the upper platform 2, for example, the hoisting facility 50 is not obstructed by the upper platform 2, and on the other hand, the upper platform 2 does not need to be moved as in the prior art, so that the safety can be fully ensured, and the occurrence of accidents is avoided. Since the blow molding process of hollow plastic articles is a well-known technology, for example, refer to the patent documents mentioned in the above background art column by the applicant, the present application is not further elaborated.
In conclusion, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the invention task and truly realizes the technical effects of the applicant in the technical effect column.
Claims (10)
1. A hollow plastic product forming machine capable of quickly changing molds comprises an upper platform supporting mechanism (1), wherein the upper platform supporting mechanism (1) is supported and fixed on a terrace in a use state; the left end of the upper platform (2) is supported on the upper part of the upper platform supporting mechanism (1) through an upper platform left lifting mechanism (21), the right end of the upper platform (2) is also supported on the upper part of the upper platform supporting mechanism (1) through an upper platform right lifting mechanism (22), the left end of the upper platform (2) is provided with a die head lower part abdicating hole (23) which penetrates from the upper surface to the lower surface of the upper platform (2), a hollow plastic product blowing die head (24) is arranged at a position corresponding to the die head lower part abdicating hole (23), the lower part of the hollow plastic product blowing die head (24) extends to the lower part of the upper platform (2) through the die head lower part abdicating hole (23), the right end of the upper platform (2) is provided with a feeding mechanism (25), and the feeding mechanism (25) is connected and communicated with the hollow plastic product blowing die head (24); the device comprises a left mould frame (3), a right half mould fixing frame (4) and a right half mould fixing frame driving action cylinder frame (5), wherein the upper parts of the left mould frame (3) and the right half mould fixing frame driving action cylinder frame (5) are connected through an upper pull rod (10), the lower parts of the left mould frame (3) and the right half mould fixing frame driving action cylinder frame (5) are connected through a lower pull rod (20), the right half mould fixing frame (4) is positioned between the left mould frame (3) and the right half mould fixing frame driving action cylinder frame (5), and a synchronization mechanism (41) is arranged in a centered position between opposite sides of the lower parts of the right half mould fixing frame (4) and the right half mould fixing frame driving action cylinder frame (5); a right half mold fixing frame driving action cylinder (6), wherein the right half mold fixing frame driving action cylinder (6) is arranged on the right half mold fixing frame driving action cylinder frame (5) in a horizontal state, and a right half mold fixing frame driving action cylinder column (61) of the right half mold fixing frame driving action cylinder (6) is hinged with the central position of the right side surface of the right half mold fixing frame (4); the device is characterized by further comprising a die change moving trolley (7), a die change moving trolley driving mechanism (8) and a die change moving trolley guiding mechanism (9), wherein the die change moving trolley guiding mechanism (9) is arranged on the terrace at a position corresponding to the inner side of the upper platform supporting mechanism (1), the die change moving trolley (7) and the die change moving trolley guiding mechanism (9) form a rolling pair, the die change moving trolley driving mechanism (8) is arranged at the right end of the die change moving trolley (7), and the lower parts of the left die frame (3), the right half die fixing frame (4) and the right half die fixing frame driving action cylinder frame (5) and the upper surface of the die change moving trolley (7) form a sliding pair; the synchronizing mechanism (41) is supported on the die change travelling trolley (7).
2. The molding machine for hollow plastic products capable of quick mold change according to claim 1, characterized in that the platform support mechanism (1) comprises a left front pillar (11), a left rear pillar (12), a right front pillar (13) and a right rear pillar (14), the left front pillar (11) and the left rear pillar (12) correspond to each other in a longitudinal state and the lower end is supported and fixed on the floor in a use state, and the upper end extends upward corresponding to the left end of the upper platform (2), the right front pillar (13) and the right rear pillar (14) correspond to each other in a longitudinal state and the lower end is also supported and fixed on the floor in a use state, and the upper end extends upward corresponding to the right end of the upper platform (2), wherein the left and right front pillars (11, 13) correspond to each other left and right, and the left and right rear pillars (12, 14) correspond to each other left and right; the downward side of the left end of the upper platform (2) is fixed with the upward side of an upper platform left mould beam (26 a), the downward side of the upper platform left mould beam (26 a) is connected with the upper platform left lifting mechanism (21), the upper platform left lifting mechanism (21) is supported and fixed between the left front upright post (11) and the upper end of a left rear upright post (12), the downward side of the right end of the upper platform (2) is fixed with the upward side of an upper platform right mould beam (26 b), the downward side of the upper platform right mould beam (26 b) is connected with the upper platform right lifting mechanism (22), and the upper platform right lifting mechanism (22) is supported and fixed between the upper ends of the right front upright post (13) and a right rear upright post (14); the left mold frame (3) comprises a pull rod left connecting frame (31) and a left half mold fixing frame (32), the right side of the middle part of the pull rod left connecting frame (31) is fixed with the left side of the left half mold fixing frame (32), the lower part of the left half mold fixing frame (32) and the upper surface of the mold changing movable trolley (7) form a sliding pair, the right half mold fixing frame driving acting cylinder frame (5) comprises a pull rod right connecting frame (51) and a pull rod right connecting frame fixing frame (52), the right side of the middle part of the pull rod right connecting frame (51) is fixed with the left side of the pull rod right connecting frame fixing frame (52), and the lower part of the pull rod right connecting frame fixing frame (52) and the upper surface of the mold changing movable trolley (7) form a sliding pair; the right half mold fixing frame (4) is positioned between the left half mold fixing frame (32) and the pull rod right connecting frame (51); the right half mould fixing frame driving acting cylinder (6) is arranged on the pull rod right connecting frame (51) in a horizontal state; the upper ends of the left pull rod connecting frame (31) and the right pull rod connecting frame (51) are connected through the upper pull rod (10), and the lower ends of the left pull rod connecting frame (31) and the right pull rod connecting frame (51) are connected through the lower pull rod (20); the synchronizing mechanism (41) supported on the mold changing travelling trolley (7) is arranged in the middle between the lower opposite sides of the left half mold fixing frame (4) and the pull rod right connecting fixing frame (52); the left end of the die change moving trolley guide mechanism (9) corresponds to the position between the left front upright post (11) and the left rear upright post (12) and extends leftwards to the left position between the left front upright post (11) and the left rear upright post (12), the right end of the die change moving trolley guide mechanism (9) corresponds to the position between the right front upright post (13) and the right rear upright post (14), and the die change moving trolley driving mechanism (8) is arranged on the front side of the right end of the die change moving trolley (7).
3. The machine for forming hollow plastic products with quick die change according to claim 2, characterized in that the left front upright (11) is formed with a left front upright cavity (111), the left rear upright (12) is formed with a left rear upright cavity (121), the right front upright (13) is formed with a right front upright cavity (131), and the right rear upright (14) is formed with a right rear upright cavity (141); the upper platform left lifting mechanism (21) comprises an upper platform left lifting driving motor (211), an upper platform left lifting driving reduction gearbox (212), an upper platform left lifting rear gearbox (213), a gearbox left synchronous transmission shaft (214) and an upper platform left lifting front gearbox (215), wherein the upper platform left lifting driving motor (211) is in transmission fit with the upper platform left lifting driving reduction gearbox (212) and is fixed on an upper platform left lifting driving reduction gearbox base (2121) by the upper platform left lifting driving reduction gearbox (212) and the upper platform left lifting driving motor (211), the upper platform left lifting driving reduction gearbox base (2121) is fixed with the top of the left rear upright post (12), the upper platform left lifting driving reduction gearbox (212) is in transmission connection with the upper platform left lifting rear gearbox (213), the upper platform left lifting rear gear box (213) is arranged on the upper platform left lifting driving reduction box seat (2121), the upper end of an upper platform left lifting rear gear box screw rod (2131) of the upper platform left lifting rear gear box (213) extends out of the upper platform left lifting rear gear box (213) and is fixed with one side of the rear end of the upper platform left die beam (26 a) facing downwards, the upper platform left lifting rear gear box screw rod (2131) penetrates through the upper platform left lifting driving reduction box seat (2121) and extends downwards into a left rear upright cavity (121) of the left rear upright (12), and a gear box left synchronous transmission shaft (214) is in transmission connection with the upper platform left lifting rear gear box (213) and the gear box left lifting rear gear box (213) The upper platform left lifting front gearbox (215) is fixed with the top of the left front upright post (11) through an upper platform left lifting front gearbox seat (2151), the upper end of an upper platform left lifting front gearbox screw (2152) of the upper platform left lifting front gearbox (215) extends out of the upper platform left lifting front gearbox (215) and is fixed with one side, facing downwards, of the front end of the upper platform left die beam (26 a), and the lower end of the upper platform left lifting front gearbox screw (2152) penetrates through the upper platform left lifting front gearbox seat (2151) and extends downwards into a left front upright post cavity (111) of the left front upright post (11); the upper platform right lifting mechanism (22) comprises an upper platform right lifting driving motor (221), an upper platform right lifting driving reduction gearbox (222), an upper platform right lifting rear gearbox (223), a gearbox right synchronous transmission shaft (224) and an upper platform right lifting front gearbox (225), the upper platform right lifting driving motor (221) is in transmission fit with the upper platform right lifting driving reduction gearbox (222) and is fixed on an upper platform right lifting driving reduction gearbox seat (2221) through the upper platform right lifting driving reduction gearbox (222) and the upper platform right lifting driving motor (221), the upper platform right lifting driving reduction gearbox seat (2221) is fixed with the top of the right rear upright post (14), the upper platform right lifting driving reduction gearbox (222) is in transmission connection with the upper platform right lifting rear gearbox (223), the upper platform right lifting rear gear box (223) is arranged on the upper platform right lifting driving reduction box seat (2221), the upper end of an upper platform right lifting rear gear box screw rod (2231) of the upper platform right lifting rear gear box (223) extends out of the upper platform right lifting rear gear box (223) and is fixed with one side of the rear end of the upper platform right die beam (26 b) facing downwards, the upper platform right lifting rear gear box screw rod (2231) penetrates through the upper platform right lifting driving reduction box seat (2221) and extends downwards into a right rear upright cavity (141) of the right rear upright (14), and a gear box right synchronous transmission shaft (224) is in transmission connection with the upper platform right lifting rear gear box (223) and the upper platform right lifting rear gear box (2221) The upper platform right lifting front gearbox (225) is fixed with the top of the right front upright post (13) through an upper platform right lifting front gearbox seat (2251), the upper end of an upper platform right lifting front gearbox screw (2252) of the upper platform right lifting front gearbox (225) extends out of the upper platform right lifting front gearbox (225) and is fixed with the side, facing downwards, of the front end of the upper platform right mould beam (26 b), and the lower end of the upper platform right lifting front gearbox screw (2252) penetrates through the upper platform right lifting front gearbox seat (2251) and extends downwards into the right front upright post cavity (131) of the right front upright post (13).
4. The molding machine for hollow plastic products capable of rapid mold change according to claim 2, wherein a right synchronizing rod abdicating hole (42) is formed at a central position of a lower portion of the right half mold holder (4), a left synchronizing rod abdicating hole (521) is formed at a central position of a lower portion of the draw-bar right link holder (52), the synchronizing mechanism (41) comprises a gear pivot case (411), a left synchronizing rod (412) and a right synchronizing rod (413), the gear pivot case (411) is fixed to the mold change carriage (7) at a position corresponding to a position between the right half mold holder (4) and the draw-bar right link holder (51), a synchronizing rod gear (4112) is rotatably provided in a gear pivot case cavity (4111) of the gear pivot case (411) through a synchronizing rod gear shaft (41121), an upper end and a lower end of the synchronizing rod gear shaft (41121) are rotatably supported by a bearing through holes respectively in a top wall and a bottom wall of the gear pivot case (411), a first synchronizing rod (4113) is formed in front of the left box wall through a hole, and a first synchronizing rod (4113) is formed in front of the left box wall corresponding to the left synchronizing rod pivot case (411) through a hole, a right box wall synchronizing rod second through hole II (4116) is formed behind the right box wall and at a position corresponding to a left box wall synchronizing rod second through hole II (4114), a left synchronizing rod tooth (4121) is formed at a side of the left synchronizing rod (412) facing the synchronizing rod gear (4112), a left end of the left synchronizing rod (412) is fixed with the left half-mold fixing frame (4) at a central position corresponding to the lower part of the left half-mold fixing frame (4), a right end of the left synchronizing rod (412) sequentially passes through the left box wall synchronizing rod first through hole I (4113), the gear pivoting box cavity (4111) and the right box wall synchronizing rod first through hole I (4115) and extends out of the gear pivoting box cavity (4111) and corresponds to the left synchronizing rod abdicating hole (521), the left synchronizing rod tooth (4121) is meshed with the synchronizing rod gear (4112), a right synchronizing rod tooth (4131) is formed at a side of the right synchronizing rod (413) facing the synchronizing rod gear pivoting rod gear (4112) and corresponds to the right box synchronizing rod through the left box synchronizing rod pivoting hole I (4114) and the right synchronizing rod (41152) and the right synchronizing rod (413) is connected with the left box synchronizing rod fixing frame (4114), the right synchronizing bar tooth (4131) is engaged with the synchronizing bar gear (4112).
5. The molding machine for hollow plastic products with rapid mold change as claimed in claim 2, wherein the mold change moving carriage guide mechanism (9) comprises a moving carriage front roller guide rail (91) and a moving carriage rear roller guide rail (92), the moving carriage front roller guide rail (91) and the moving carriage rear roller guide rail (92) are kept parallel to each other in the longitudinal direction, the left ends of the moving carriage front roller guide rail (91) and the moving carriage rear roller guide rail (92) correspond to the space between the left front upright (11) and the left rear upright (12) and extend leftward to the left between the left front upright (11) and the left rear upright (12), the right ends of the moving carriage front roller guide rail (91) and the moving carriage rear roller guide rail (92) correspond to the space between the right front upright (13) and the right rear upright (14), the moving carriage front roller guide rail (91) and the moving carriage rear roller guide rail (92) are provided with a distance between the opposite sides of the left ends of the moving carriage front roller guide rail (91) and the moving carriage rear roller guide rail (92) and the sides of the moving carriage front roller guide rail (91) and the moving carriage rear roller guide rail (92) are provided with a distance between the bottom ends of the moving carriage front roller guide rail (93) and the moving carriage rear roller guide rail (92), the moving carriage rear roller guide rail (92) are provided with a distance between the bottom of the moving rail (93) in the moving carriage front roller guide rail (92), in a use state, the front roller guide rail fixing seat (911) of the mobile trolley and the rear roller guide rail fixing seat (921) of the mobile trolley are fixed with embedded parts on a floor; the die change moving trolley (7) driven by the die change moving trolley driving mechanism (8), the moving trolley front roller guide rail (91) and the moving trolley rear roller guide rail (92) form a rolling pair.
6. The molding machine for hollow plastic products with quick mold change as claimed in claim 5, wherein the mold change moving carriage (7) is in the shape of a plurality of repeated and cyclic patterns, and a moving carriage roller seat (71) is fixed at intervals on the front side surface of the mold change moving carriage (7) in the length direction and the rear side surface of the mold change moving carriage (7), a moving carriage roller (711) is rotatably disposed on the moving carriage roller seat (71), the moving carriage roller (711) on the moving carriage roller seat (71) on the front side surface of the mold change carriage (7) and the moving carriage front roller guide rail (91) form a rolling pair, and the moving carriage roller seat (71) on the rear side surface of the mold change moving carriage (7) and the moving carriage rear roller guide rail (92) form a rolling pair; and the die change moving trolley driving mechanism (8) is arranged at the right end of the front side surface of the die change moving trolley (7).
7. The hollow plastic product molding machine capable of rapidly changing molds according to claim 6, characterized in that the mold changing traveling carriage driving mechanism (8) comprises a mold changing traveling carriage driving motor (81) and a mold changing traveling carriage driving reduction gear box (82), the mold changing traveling carriage driving motor (81) is in transmission fit with the mold changing traveling carriage driving reduction gear box (82) and the mold changing traveling carriage driving reduction gear box (82) together with the mold changing traveling carriage driving motor (81) is arranged on a traveling carriage roller seat (71) at the right end of the front side face of the mold changing traveling carriage (7), and the traveling carriage roller (711) on one of the traveling carriage roller seats (71) at the right end is fixed with the mold changing traveling carriage driving reduction gear box shaft of the mold changing traveling carriage driving reduction gear box (82); the driving motor (81) of the die-changing moving trolley is a motor with a forward and reverse rotation function.
8. The molding machine for hollow plastic products with quick mold change as claimed in claim 2, wherein a left half mold holder front slider guide (72 a), a right half mold holder front slider guide (72 b) and a tie rod right connecting frame holder front slider guide (72 c) are fixed on the front upper surface of the mold change moving carriage (7) in the length direction at intervals from left to right, a left half mold holder rear slider guide (73 a), a right half mold holder rear slider guide (73 b) and a tie rod right connecting frame holder rear slider guide (73 c) are also fixed on the rear upper surface of the mold change moving carriage (7) in the length direction at intervals from left to right, a left half mold holder front slider (321) is fixed on the front bottom of the left half mold holder (32), a left half mold holder rear slider (322) is fixed on the rear bottom of the left half mold holder rear slider guide (32), a left half mold holder front slider (321) and the left half mold holder front slider guide (72 a) constitute a sliding sub-holder front slider guide, a right half mold holder rear slider guide (73) and a right half mold holder rear slider guide (4) constitute a sliding sub-holder front slider guide (43) and a right half mold holder rear slider guide (73 b) constitute a sliding sub-holder rear slider guide (4) on the right connecting frame front half mold holder rear half mold holder rear half holder rear slider guide, slider (44) behind right half mould mount with slider guide rail (73 b) constitute the sliding pair behind the right half mould mount the front side bottom of pull rod right side link mount (52) is fixed with slider (522) before the link right link mount, and is fixed with slider (523) behind the link right link mount in the rear side bottom of link right side link mount (52), slider (522) before the link right side link mount with slider guide rail (72 c) before the link right side link mount constitute the sliding pair, and slider (523) behind the link right side link mount with slider guide rail (73 c) constitute the sliding pair behind the link right side link mount.
9. The hollow plastic product molding machine capable of rapidly changing molds according to claim 1 or 2, characterized in that the right mold half holder driving action cylinder (6) is an oil cylinder.
10. The molding machine for hollow plastic products capable of fast mold changing as claimed in claim 1, wherein said feeding mechanism (25) comprises an extruder (251), a feeding hopper (252), a melt delivery pipe (253) and a heater (254), the extruder (251) is disposed on the upward side of the right end of said upper platform (2) through a support (2511), the feeding hopper (252) is disposed at the right end of the melt delivery pipe (253), the melt delivery pipe (253) is connected between said hollow plastic product blowing die head (24) and the extruder (251), and the heater (254) is enveloped in the middle of the melt delivery pipe (253).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211408846.XA CN115782132A (en) | 2022-11-11 | 2022-11-11 | Hollow plastic product forming machine capable of quickly changing mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211408846.XA CN115782132A (en) | 2022-11-11 | 2022-11-11 | Hollow plastic product forming machine capable of quickly changing mold |
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| CN115782132A true CN115782132A (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211408846.XA Pending CN115782132A (en) | 2022-11-11 | 2022-11-11 | Hollow plastic product forming machine capable of quickly changing mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102664832B1 (en) * | 2023-12-30 | 2024-05-10 | 주식회사 화진시스템 | Press mold replacement device with adjustable travel distance |
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2022
- 2022-11-11 CN CN202211408846.XA patent/CN115782132A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102664832B1 (en) * | 2023-12-30 | 2024-05-10 | 주식회사 화진시스템 | Press mold replacement device with adjustable travel distance |
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Country or region after: China Address after: No. 21 Fenghuang Avenue, Fenghuang Town, Zhangjiagang City, Suzhou City, Jiangsu Province 215614 Applicant after: Suzhou Tongda Machinery Co.,Ltd. Address before: 215614 No.8, Fenghuang Avenue, Fenghuang Town, Zhangjiagang City, Suzhou City, Jiangsu Province Applicant before: SUZHOU TONGDA MACHINERY Co.,Ltd. Country or region before: China |