Turnover die mechanism for a plastic thermoforming machine

Abstract

The utility model relates to a turnover mould mechanism of plastic product thermoforming machine, its turnover mould body is provided with lower cutter plate and lower die plate, the lower die plate is located the downside of lower cutter plate, the distribution arrangement of lower cutter plate is provided with the cutter hole for lower cutter cylinder mould assembly, lower cutter cylinder mould cooperation sleeve sets up in cutter hole, lower cutter cylinder mould inner sleeve sets up cup body cavity cylinder mould, cup bottom core mould is arranged in cup body cavity cylinder mould middle position, cup bottom core mould connects and installs in the lifting push cup rod, the lifting push cup rod is located the below of cup bottom core mould, the lifting push cup rod is arranged on the turnover mould body, lower die plate is equipped with assembly through -hole, the cutter hole and assembly through -hole are set up correspondingly, the lifting push cup rod passes through the assembly through -hole. Can dismount and replace and satisfy different size specifications plastic product forming demand. Among them, the lower die plate and the lower cutter plate are installed on the turnover mould body, different lower die plates and lower cutter plates can be replaced according to the specification requirements of plastic products, and different layout requirements can also be met.

Description

Technical Field

[0001] This utility model relates to a flipping mold mechanism for a plastic product thermoforming machine. Background Technology

[0002] In the flipping mold mechanism of a plastic product thermoforming machine, the lower mold assembly is installed on the flipping mold body and flips back and forth and moves up and down together with the flipping mold body. The lower mold assembly includes a lower cutter (i.e., lower cutter cylinder mold) used to cut the plastic product (such as a cup) after it is formed. The lower mold assembly also includes a cup body cavity mold for forming. Different specifications and sizes of plastic cups require different specifications (such as depth) of lower cutters and cup body cavity molds. In addition, different layouts and different quantities also require the replacement of parts. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a flipping mold mechanism for a plastic thermoforming machine that can be disassembled and replaced to meet the molding needs of plastic products of different sizes and specifications.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a flipping mold mechanism for a plastic product thermoforming machine, comprising a flipping mold body, a lower blade plate and a lower template plate installed on the flipping mold body, the lower template plate being located below the lower blade plate, characterized in that: the lower blade plate is provided with mounting holes for assembling the lower blade cylinder mold, the lower blade cylinder mold is fitted into the mounting holes, a cup body cavity mold is fitted inside the lower blade cylinder mold, a cup bottom core mold is arranged in the middle of the cup body cavity mold, the cup bottom core mold is connected and installed on a lifting cup push rod, the lifting cup push rod is located below the cup bottom core mold, the lifting cup push rod is arranged on the flipping mold body, the lower template plate is provided with an assembly through hole, the mounting holes and the assembly through hole are arranged vertically correspondingly, and the lifting cup push rod passes through the assembly through hole.

[0005] The following optimizations or supplementary explanations can be made to the above technical solutions.

[0006] For example, the lower template is connected to the top of the flipping mold body by fasteners, and the lower blade is connected to the upper side of the lower template by fasteners.

[0007] The lower end of the lower die rests flat against the upper side of the lower template. The lower end of the lower die has a first connecting hole, and the lower template has a second connecting hole. The first connecting hole and the second connecting hole are connected by connecting screws, which are installed from bottom to top.

[0008] In addition, the lower part of the cup body cavity mold has a limiting step ring. The lower end of the cup body cavity mold is fitted into the assembly through hole. The limiting step ring is fitted to the upper side of the assembly through hole. The lower part of the cup body cavity mold is also provided with an annular groove. The annular groove is located at the lower edge of the limiting step ring. The lower template is provided with a straight groove. The straight groove is located on the upper side of the lower template. The opening of the straight groove is facing upward. The straight groove is connected to the assembly through hole. The straight groove is connected to the side of the assembly through hole. The lower cutter plate is located on the upper side of the lower template. The straight groove is also equipped with a pluggable pin to lock the mold strip. In the assembly state, the pin inserted into the straight groove locks the mold strip and engages with the annular groove.

[0009] For example, straight slots are set horizontally, vertically, or diagonally on the lower template, and adjacent cup body cavity molds in the front and rear rows or adjacent cup body cavity molds in the left and right rows are locked by a pin engaging with a locking strip.

[0010] For example, the front and rear rows of cup body cavity molds are staggered and arranged to form diagonally aligned columns. Straight grooves are diagonally set on the lower template. The adjacent cup body cavity molds on the left and right are locked by a pin and a locking strip.

[0011] In addition, a locking strip fixing device is provided between the locking strip and the lower template or lower blade plate.

[0012] For example, the locking strip fixing device includes a fixing bolt and a bolt hole provided on the end of the locking strip where the bolt engages with the pin. The fixing bolt is connected to the lower template or lower cutter plate, and the bolt hole allows the fixing bolt to be inserted. For example, the fixing bolt can be connected to the lower template or lower cutter plate by fasteners.

[0013] For example, the lower end of the lifting cup pusher is connected to the lifting base plate. The flipping mold body is also equipped with a guide rod, the lower base plate is mounted on the guide rod, and the flipping mold body is also equipped with a lifting drive cylinder, which is connected to the lower base plate in a transmission manner.

[0014] The beneficial effects of this utility model are that the flipping mold mechanism of the plastic product thermoforming machine can be disassembled and replaced to meet the molding needs of plastic products of different sizes and specifications. Specifically, the lower template and lower cutter plate are installed on the flipping mold body, allowing for the replacement of different lower templates and lower cutter plates according to the specifications of the plastic product (such as a plastic cup) (such as mouth diameter, depth, etc.), and also meeting different layout requirements. Furthermore, the lower cutter cylinder mold, the cup body cavity cylinder mold, and the cup bottom core mold are all independent components, which can be replaced and matched according to different specifications (such as depth, etc.). Moreover, within a certain specification range, the requirements can be met without replacing the lower template and lower cutter plate. Attached Figure Description

[0015] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0016] Figure 1 This is a top view of the structure of this utility model.

[0017] Figure 2 for Figure 1 The cross-section of AA shows the lower blade and related structures on the lower template.

[0018] Figure 3 This is a three-dimensional structural diagram of the disassembled state of this utility model.

[0019] Figure 4 This is a front side view of the present invention.

[0020] In the picture: 1. Lower blade plate; 10. Fastener; 11. Blade mounting hole; 2. Lower template; 21. Assembly through hole; 22. Second connecting hole; 23. Upper side; 24. Straight groove; 25. Pin-locking strip; 251. Bolt opening; 3. Lower die cylinder; 31. First connecting hole; 32. Connecting screw; 4. Cup body cavity mold; 40. Limiting step ring; 41. Annular groove; 5. Cup bottom core mold; 50. Lifting cup push rod; 51. Lower base plate; 52. Guide rod; 6. Fixed bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Referring to the accompanying drawings, the tilting mold mechanism of the plastic product thermoforming machine in this embodiment includes a tilting mold body (not shown in the figures), on which a lower template 2 and a lower cutter plate 1 are mounted. The lower template 2 is located below the lower cutter plate 1. The lower blade plate 1 has mounting holes 11 arranged on it for mounting the lower blade cylinder mold 3 (used to cooperate with the cutter for cutting the cup rim). The lower blade cylinder mold 3 is fitted into the mounting holes 11. The cup body cavity mold 4 is fitted inside the lower blade cylinder mold 3. The cup body cavity mold 4 is used to cooperate in the forming of the plastic cup body. The cup bottom core mold 5 is arranged in the middle of the cup body cavity mold 4. The cup bottom core mold 5 is used to cooperate in the forming of the cup bottom of the plastic cup. The cup bottom core mold 5 is connected and installed on the lifting pusher rod. The lifting pusher rod is located below the cup bottom core mold 5 and is arranged on the flipping mold body. The lifting pusher rod drives the cup bottom core mold 5 to move up and down. When it is lowered, it cooperates in forming the cup bottom. When it is raised, it cooperates in demolding the plastic cup. The lower template 2 has an assembly through hole 21. The mounting holes 11 and the assembly through hole 21 are arranged vertically and vertically. The lifting pusher rod passes through the assembly through hole 21 so as to smoothly drive the cup bottom core mold 5 to move up and down.

[0023] The flipping mold mechanism of this plastic thermoforming machine can be disassembled and replaced to meet the molding needs of plastic products of different sizes and specifications.

[0024] The lower template 2 and lower cutter plate 1 are mounted on the flip mold body, allowing for the replacement of different lower templates 2 and lower cutter plates 1 according to the specifications of the plastic product (such as a plastic cup) (e.g., mouth diameter, depth). Furthermore, the lower cutter cylinder mold 3, the cup body cavity mold 4, and the cup bottom core mold 5 are independent components, which can be replaced and matched according to different specifications (e.g., depth). Moreover, within a certain specification range, the requirements can be met without replacing the lower template 2 and lower cutter plate 1. This structural layout is reasonable, and its ease of assembly and disassembly can be further optimized in the future.

[0025] The following optimizations or further explanations can be made based on the above embodiments.

[0026] For example, the lower template 2 is connected to the top of the flipping mold body by fasteners (such as screws), and the lower blade 1 is connected to the upper side of the lower template 2 by fasteners 10 (such as screws).

[0027] For example, the lower end of the lower die 3 rests flat against the upper side 23 of the lower template 2. That is, when the lower die 3 is assembled into the tool mounting hole 11 of the lower die plate 1, it is positioned against the upper side 23 of the lower template 2. The lower template 2 can block the lower end of the tool mounting hole 11 of the lower die plate 1, making it easy for the lower die 3 to be placed in place. The lower end of the lower die 3 is provided with a first connecting hole 31, and the lower template 2 is provided with a second connecting hole 22. The first connecting hole 31 and the second connecting hole 22 are connected by a connecting screw 32. The connecting screw 32 is installed from bottom to top. In this structure, after the connecting screw 32 is connected, the lower die 3 placed in the tool mounting hole 11 of the lower die plate 1 can be locked and fixed from the lower end position without affecting the installation and use of other structures.

[0028] Further optimization is needed. The lower part of the cup-body cavity mold 4 has a limiting step ring 40. The lower end of the cup-body cavity mold 4 fits into the assembly through hole 21, and the limiting step ring 40 is positioned on the upper side of the assembly through hole 21 for easy assembly. When the cup-body cavity mold 4 is installed into the lower die mold 3, its limiting step ring 40 will be supported and limited by the edge of the assembly through hole 21 of the lower die 2, making the assembly of the cup-body cavity mold 4 simpler and easier to operate, achieving a one-step assembly. The lower part of the cup-body cavity mold 4 also has an annular groove 41, located below the limiting step ring 40. The lower template 2 is provided with a straight groove 24, which is located on the upper side of the lower template 2. The straight groove 24 is connected to the assembly through hole 21. The straight groove 24 is connected to the side of the assembly through hole 21, that is, the side of the assembly through hole 21 has a notch that connects to the straight groove 24. The straight groove 24 and the assembly through hole 21 have an overlapping part that connects them. The opening of the straight groove 24 is set upward. The straight groove 24 is easy to process and can be directly processed on the upper surface of the lower template 2. The lower blade 1 is located on the upper side of the lower template 2, and the lower blade 1 then seals the straight groove 24 on the upper side of the lower template 2. The straight groove 24 is also equipped with a pluggable pin to engage the locking strip. 25. The pin-locking strip 25 can be inserted and removed linearly in the straight slot 24, making operation convenient. In this structure, the pin-locking strip 25 inserted into the straight slot 24 can enter the side position of the assembly through hole 21. In the assembled state, the pin-locking strip 25 inserted into the straight slot 24 engages with the annular slot 41 of the cup body cavity mold 4, locking and fixing the cup body cavity mold 4, which is sleeved in the lower end of the lower die-cutting cylinder mold 3 and located in the assembly through hole 21, preventing the cup body cavity mold 4 from detaching. During disassembly, the pin-locking strip 25 is pulled out, unlocking the cup body cavity mold 4, which can then be removed from the lower die-cutting cylinder mold 3. In this structure, the cup body cavity mold 4 is easy to assemble and disassemble, and it can also be replaced individually to adapt to different specifications (such as depth).

[0029] The straight groove 24 is arranged horizontally, vertically, or diagonally on the lower template 2. Adjacent cup-shaped cavity molds 4 in the front and rear rows, or adjacent cup-shaped cavity molds 4 in the left and right columns, are locked together by a pin engaging a locking strip 25. The structure is relatively compact, and a single pin engaging a locking strip 25 can lock multiple adjacent cup-shaped cavity molds 4 simultaneously, making operation more convenient. For example, the front and rear rows of cup-shaped cavity molds 4 are staggered and arranged diagonally aligned. The straight groove 24 is diagonally arranged on the lower template 2, and adjacent cup-shaped cavity molds 4 in the left and right columns are locked together by a pin engaging a locking strip 25.

[0030] In addition, a locking device is provided between the locking strip 25 and the lower template 2 or the lower blade plate 1 to fix the locking strip after installation, preventing displacement or detachment of the locking strip 25 during operation; after the locking device is unlocked, the locking strip 25 can be easily inserted and removed. There are many ways to fix the locking strip, for example, fasteners can be used to lock the locking strip 25 to the lower template 2 or the lower blade plate 1.

[0031] Alternatively, for example, the locking strip fixing device includes a fixing bolt 6 and a bolt hole 251 provided on the end of the locking strip 25 that is attached to the pin. The fixing bolt is connected to the lower template 2 or the lower blade plate 1, and the bolt hole 251 is for the fixing bolt 6 to be inserted. For example, the fixing bolt is connected to the lower template 2 or the lower blade plate 1 by fasteners (such as screws), which provides good stability. When the locking strip 25 is inserted, its end is relatively outward, and the fixing bolt 6 is inserted into the bolt hole 251. The fixing bolt 6 is then connected to the lower template 2 or the lower blade plate 1 for fixing. When disassembling, the fixing bolt 6 can be removed from the lower template 2 or the lower blade plate 1.

[0032] The lower end of the lifting cup pusher is connected to the lifting bottom plate so that multiple lifting cup pushers can be driven to rise and fall in a unified manner by the bottom plate. The flipping mold body is also equipped with a guide rod, and the bottom plate is placed on the guide rod. The guide rod guides the lower bottom plate to rise and fall stably. The flipping mold body is also equipped with a lifting drive cylinder, which is connected to the bottom plate. The lifting drive cylinder drives the bottom plate to rise and fall on the flipping mold body.

Claims

1. A flipping mold mechanism for a plastic product thermoforming machine, comprising a flipping mold body, wherein a lower cutter plate (1) and a lower template (2) are mounted on the flipping mold body, the lower template (2) being located below the lower cutter plate (1), characterized in that: The lower blade plate (1) is provided with mounting holes (11) for the lower blade cylinder mold (3) to be assembled. The lower blade cylinder mold (3) is fitted in the mounting holes (11). The cup body cavity cylinder mold (4) is fitted inside the lower blade cylinder mold (3). The cup bottom core mold (5) is arranged in the middle of the cup body cavity cylinder mold (4). The cup bottom core mold (5) is connected and installed on the lifting cup push rod (50). The lifting cup push rod (50) is located below the cup bottom core mold (5). The lifting cup push rod (50) is arranged on the flip mold body. The lower template (2) is provided with an assembly through hole (21). The mounting holes (11) and the assembly through hole (21) are arranged vertically and vertically. The lifting cup push rod passes through the assembly through hole (21).

2. The flipping mold mechanism of the plastic product thermoforming machine as described in claim 1, characterized in that: The lower template (2) is connected to the top of the flipping mold body by fasteners, and the lower blade (1) is connected to the upper side of the lower template (2) by fasteners.

3. The flipping mold mechanism of the plastic product thermoforming machine as described in claim 1, characterized in that: The lower end of the lower die (3) rests flat against the upper side (23) of the lower template (2). The lower end of the lower die (3) is provided with a first connecting hole (31), and the lower template (2) is provided with a second connecting hole (22). The first connecting hole (31) and the second connecting hole (22) are connected by a connecting screw (32). The connecting screw (32) is installed from bottom to top.

4. The flipping mold mechanism of the plastic product thermoforming machine as described in claim 1, characterized in that: The lower part of the cup body cavity mold (4) has a limiting step ring (40). The lower end of the cup body cavity mold (4) is fitted into the assembly through hole (21), and the limiting step ring (40) is fitted and limited on the upper side of the assembly through hole (21). The lower part of the cup body cavity mold (4) is also provided with an annular groove (41), which is located at the lower edge of the limiting step ring (40). The lower template (2) is provided with a straight groove (24), which is located on the upper side of the lower template (2) and has its opening facing upwards. The straight groove (24) is connected to the assembly through hole (21), and the straight groove (24) is located on the side of the assembly through hole (21). The lower blade (1) is located on the upper side of the lower template (2). The linear slot (24) is also equipped with a plug-in locking strip (25). When the assembly state is reached, the plug-in locking strip (25) inserted into the linear slot (24) engages with the annular slot (41).

5. The flipping mold mechanism of the plastic product thermoforming machine as described in claim 4, characterized in that: The straight groove (24) is set horizontally, vertically or diagonally on the lower template (2). The cup body cavity cylinder molds (4) in the front and rear rows or the cup body cavity cylinder molds (4) in the left and right rows are locked by a pin and locking strip (25).

6. The flipping mold mechanism of the plastic product thermoforming machine as described in claim 4, characterized in that: The front and rear rows of the cup body cavity molds (4) are staggered and arranged to form an obliquely aligned column. The straight groove (24) is obliquely set on the lower template (2). The cup body cavity molds (4) adjacent to each other on the left and right are locked by a pin and a locking strip (25).

7. The flipping mold mechanism of the plastic product thermoforming machine as described in claim 4, characterized in that: A locking strip fixing device is provided between the locking strip (25) and the lower template (2) or the lower blade plate (1).

8. The flipping mold mechanism of the plastic product thermoforming machine as described in claim 7, characterized in that: The locking strip fixing device includes a fixing bolt (6) and a bolt hole (251) provided on the end of the locking strip (25) with a pin. The fixing bolt is connected to the lower template (2) or the lower blade plate (1), and the bolt hole (251) is for the fixing bolt (6) to be inserted.

9. The flipping mold mechanism of the plastic product thermoforming machine as described in claim 8, characterized in that: The fixing bolt is connected to the lower template (2) or the lower blade plate (1) by fasteners.

10. The flipping mold mechanism of the plastic product thermoforming machine as described in claim 1, characterized in that: The lower end of the lifting cup pusher (50) is connected to the lifting lower base plate (51). The flipping mold body is also equipped with a guide rod, and the bottom plate is arranged on the guide rod. The flipping mold body is also equipped with a lifting drive cylinder, which is connected to the bottom plate (51) in a transmission.

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