Quick die changeable EPE composite packaging cotton forming die device

CN224527737UActive Publication Date: 2026-07-21CHANGZHOU RONGSHEN CARBON MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU RONGSHEN CARBON MATERIAL TECH CO LTD
Filing Date
2025-08-06
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The process of changing the upper and lower molds of EPE composite packaging cotton molding mold is cumbersome, requires external tools, and affects processing efficiency.

Method used

A quick-change EPE composite packaging cotton molding device was designed. Through the cooperation of the limiting plate, screw and turntable, the upper and lower molds can be easily disassembled and installed. The limiting block and the limiting plate are connected by welding. The anti-slip thread increases the friction. The movable hole guides the moving plate to rise and fall smoothly, ensuring the mold is accurately aligned.

Benefits of technology

It simplifies the mold replacement process, improves processing efficiency, enhances the stability and service life of the limiting components, improves operational convenience and safety, and ensures molding accuracy and equipment reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to EPE composite packing cotton processing technical field, specifically disclose a kind of EPE composite packing cotton forming mould device of quick die change, including moving plate and bottom plate, the bottom of moving plate is equipped with upper base, the top of bottom plate is equipped with lower base, the side corresponding of upper base and lower base is equipped with clamping groove, the clamping groove of upper base is connected with upper mould, the clamping groove of lower base is connected with lower mould. The utility model when needing to replace upper mould and lower mould, first rotate carousel, rotate through carousel drive screw, rotate through movable shaft cooperation screw, drive limiting plate to contract through screw hole cooperation screw, through the limiting slot in movable groove and limiting block cooperation limiting plate contract into movable groove, when the inner side of limiting plate does not contact upper mould or lower mould, upper mould and lower mould can be moved.
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Description

Technical Field

[0001] This utility model relates to the field of EPE composite packaging cotton processing technology, specifically to an EPE composite packaging cotton forming mold device with quick mold change capability. Background Technology

[0002] EPE composite packaging cotton refers to packaging materials that combine EPE pearl cotton with other materials. EPE pearl cotton, also known as EPE pearl cotton laminated bag, is a soft, elastic packaging bag with moisture-proof, corrosion-proof, and heat-insulating functions. It is composed of countless independent air bubbles created through physical foaming of low-density PE resin. It possesses numerous advantages such as water and moisture resistance, shock absorption, sound insulation, heat insulation, excellent plasticity, high toughness, recyclability, environmental friendliness, and strong impact resistance, making it an ideal alternative to traditional packaging materials. EPE composite packaging cotton, while retaining the original advantages of EPE pearl cotton, further enhances its performance through combination with other materials, meeting the packaging needs of various products.

[0003] When processing EPE composite packaging cotton, molding molds are required. Different molds need to be changed according to the shape of the EPE composite packaging cotton. However, the process of changing the upper and lower molds is cumbersome and requires the use of external tools by the staff to complete the disassembly and replacement, which affects the processing efficiency of EPE composite packaging cotton. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an EPE composite packaging cotton molding die device with quick die change capability, which has the advantages of easy disassembly and replacement of the upper and lower dies, thus solving the problem of inconvenient disassembly and replacement of the upper and lower dies.

[0005] This utility model discloses a quick-change EPE composite packaging cotton molding die device, comprising a movable plate and a base plate. The movable plate has an upper base at its bottom and a lower base at its top. Corresponding slots are provided on opposite sides of the upper and lower bases. An upper die is engaged in the slot of the upper base, and a lower die is engaged in the slot of the lower base. Limiting components are provided on both the front and back sides of the upper and lower bases. Each limiting component includes a movable groove. A movable shaft is provided on the outer side of the inner cavity of the movable groove. A screw is rotatably connected to the inner cavity of the movable shaft. A turntable is fixedly connected to the outer side of the screw. A limiting plate is fitted onto the surface of the screw. Limiting blocks are provided at the top and bottom of the limiting plate. Limiting grooves adapted to the limiting blocks are provided at the top and bottom of the inner cavity of the movable groove. A screw hole adapted to the screw is provided in the inner cavity of the limiting plate. When the upper and lower die need to be changed, the device first rotates... The turntable drives a screw to rotate, which in turn rotates via a movable shaft. The screw, in conjunction with a screw hole, causes a limiting plate to retract. The limiting plate retracts into the movable groove via a limiting slot and a limiting block. The upper and lower molds can be moved when the inner side of the limiting plate does not contact the upper or lower mold. The required upper and lower molds can be replaced when they are removed from their respective slots in the upper and lower bases. After the new upper and lower molds are placed in their designated positions, the turntable is reversed. This reverses the screw, causing it to move inward. When the inner side of the limiting plate contacts the upper or lower mold, it secures the mold in its slot within the upper and lower bases. This design avoids the cumbersome process of changing upper and lower molds, which requires external tools and thus affects the processing efficiency of EPE composite packaging cotton.

[0006] This utility model discloses a quick-change EPE composite packaging cotton molding die device, wherein the top and bottom of the limiting plate are fixedly connected to the limiting block by welding, and the surface of the limiting block is in close contact with the limiting groove. By fixing the limiting block and the limiting plate by welding, this utility model solves the problem that the connection between the limiting block and the limiting plate is prone to loosening or separation, which leads to a decrease in the overall stability of the limiting component. This enhances the connection strength between the limiting plate and the limiting block, ensures that the limiting block slides smoothly in the limiting groove without shaking, and thus improves the reliability and service life of the limiting component.

[0007] This utility model discloses a quick-change EPE composite packaging cotton molding die device, wherein the top and bottom sides of the movable groove are fixedly connected to the fixing plates, and the inner cavity of the fixing plates is fixedly connected to the lower base or the upper base by fixing bolts. By fixing the fixing bolt holes, the problem of inconvenient or unstable connection between the movable groove and the upper / lower base or the need for complex tooling is solved. It achieves the effect of quickly and firmly installing the limiting component onto the upper base or the lower base using standard fasteners, simplifying the assembly process and ensuring the connection strength.

[0008] This utility model discloses a quick-change EPE composite packaging cotton molding die device, wherein the surface of the turntable is provided with anti-slip threads, and the number of anti-slip threads is not less than fifteen. Through the anti-slip threads, the problem of easy slippage when the operator manually rotates the turntable is solved, which leads to difficulty in applying force, low efficiency, and even possible hand injury. It significantly increases the friction of the turntable surface, allowing the operator to hold and rotate the turntable more easily and steadily to drive the screw, thereby improving the convenience and safety of operation.

[0009] This utility model discloses a quick-change EPE composite packaging cotton molding die device, wherein each of the four corners of the inner cavity of the moving plate is provided with a movable hole, and the inner cavity of the movable hole is adapted to the external sliding rod. Through the movable hole, the problem of possible displacement, shaking or jamming of the moving plate during the lifting process is solved, which affects the precise alignment of the upper and lower molds and the stability of the movement. It achieves the effect of using the sliding rod to accurately guide the moving plate to lift and lower smoothly in the vertical direction, ensuring that the upper mold and the lower mold always maintain good alignment, thereby improving the molding accuracy and the reliability of equipment operation.

[0010] This utility model discloses a quick-change EPE composite packaging cotton molding die device, wherein the inner side of the limiting plate is in close contact with the upper base and the upper die, as well as the lower base and the lower die. By ensuring that the inner side of the limiting plate is in close contact with the upper base and the upper die, as well as the lower base and the lower die, the device solves the problem that the die (upper or lower die) may be loose or displaced in its slot, affecting the molding accuracy and stability after die change. After the die is inserted into the slot, the tightened limiting plate applies a stable clamping force from the side, tightly pressing and fixing the die with its corresponding base (upper or lower base), preventing any displacement of the die during processing, and ensuring the molding quality.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. When the upper and lower molds need to be replaced, this utility model first rotates the turntable, which drives the screw to rotate. The screw rotates through the movable shaft, and the screw retracts through the screw hole. The limiting plate retracts into the movable box through the limiting groove and limiting block in the movable box. When the inner side of the limiting plate does not contact the upper or lower mold, the upper and lower molds can be moved. When the upper and lower molds are removed from the slots in the upper and lower bases respectively, the required upper and lower molds can be replaced. After the new upper and lower molds are placed in the designated positions, the turntable is reversed, which drives the screw to reverse. The screw retracts through the screw hole, and the limiting plate moves inward. When the inner side of the limiting plate contacts the upper or lower mold, the upper and lower molds are fixed in the slots in the upper and lower bases. This avoids the cumbersome process of replacing the upper and lower molds, which requires the use of external tools by the staff to complete the disassembly and replacement, thus affecting the processing efficiency of EPE composite packaging cotton.

[0013] 2. This utility model solves the problem of easy loosening or detachment at the connection between the limiting block and the limiting plate, which leads to a decrease in the overall stability of the limiting component, by fixing the limiting block and the limiting plate together by welding. This enhances the connection strength between the limiting plate and the limiting block, ensures that the limiting block slides smoothly in the limiting groove without shaking, and thus improves the reliability and service life of the limiting component.

[0014] By fixing the bolt holes and securing them, the problems of inconvenient, unstable, or complex tooling required for connecting the movable box to the upper / lower base are solved. This allows the limit assembly to be quickly and securely installed onto the upper or lower base using standard fasteners, simplifying the assembly process and ensuring connection strength.

[0015] The anti-slip threads solve the problem of slippage when operators manually rotate the turntable, which leads to difficulty in applying force, low efficiency, and even potential hand injuries. This significantly increases the friction on the turntable surface, allowing operators to hold and rotate the turntable more easily and steadily to drive the screw, thus improving operational convenience and safety.

[0016] By using movable holes, the problem of potential displacement, shaking, or jamming of the moving plate during lifting and lowering is solved, which affects the precise alignment and smooth movement of the upper and lower molds. This achieves the effect of using slide rods to precisely guide the moving plate to lift and lower smoothly in the vertical direction, ensuring that the upper and lower molds always maintain good alignment, thereby improving molding accuracy and equipment operation reliability. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a bottom view of the movable plate structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0021] Figure 4 This is a partial cross-sectional view of the limiting plate of this utility model.

[0022] In the diagram: 1. Movable plate; 2. Base plate; 3. Lower base; 4. Limiting assembly; 401. Movable box; 402. Fixed plate; 403. Fixed bolt; 404. Limiting block; 405. Limiting plate; 406. Screw; 407. Movable shaft; 408. Turntable; 409. Screw hole; 4010. Limiting groove; 5. Slot; 6. Lower mold; 7. Movable hole; 8. Upper base; 9. Upper mold. Detailed Implementation

[0023] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0024] Please see Figure 1-4This utility model discloses a quick-change EPE composite packaging cotton molding device, comprising a movable plate 1 and a base plate 2. The bottom of the movable plate 1 is provided with an upper base 8, and the top of the base plate 2 is provided with a lower base 3. A slot 5 is provided on one side of the upper base 8 and the lower base 3 respectively. An upper mold 9 is engaged in the slot 5 of the upper base 8, and a lower mold 6 is engaged in the slot 5 of the lower base 3. Limiting components 4 are provided on both the front and back sides of the upper base 8 and the lower base 3. Each limiting component 4 includes a movable groove 401, and a movable shaft 407 is provided on the outer side of the inner cavity of the movable groove 401. The inner cavity of mold 07 is rotatably connected to a screw 406, and a turntable 408 is fixedly connected to the outer side of the screw 406. A limiting plate 405 is sleeved on the surface of the screw 406. Limiting blocks 404 are provided at the top and bottom of the limiting plate 405. Limiting grooves 4010 that are adapted to the limiting blocks 404 are opened at the top and bottom of the inner cavity of the movable groove 401. A screw hole 409 that is adapted to the screw 406 is opened in the inner cavity of the limiting plate 405. When it is necessary to replace the upper mold 9 and the lower mold 6, the turntable 408 is rotated first, and the screw 406 is driven by the turntable 408. 6 rotates via the movable shaft 407 in conjunction with the screw 406. The screw 406, in conjunction with the screw hole 409, drives the limiting plate 405 to retract. The limiting groove 4010 and the limiting block 404 within the movable groove 401, in conjunction with the limiting plate 405, retract into the movable groove 401. When the inner side of the limiting plate 405 does not contact the upper mold 9 or the lower mold 6, the upper mold 9 and the lower mold 6 can be moved. When the upper mold 9 and the lower mold 6 are removed from the slots 5 within the upper base 8 and the lower base 3 respectively, the required upper mold 9 and lower mold 6 can be replaced. After the mold 9 and the lower mold 6 are replaced and placed in the designated position, the turntable 408 is reversed. The turntable 408 drives the screw 406 to reverse. The screw 406, in conjunction with the screw hole 409, drives the limiting plate 405 inward. When the inner side of the limiting plate 405 contacts the upper mold 9 or the lower mold 6, the upper mold 9 and the lower mold 6 can be fixed in the slot 5 in the upper base 8 and the lower base 3. This avoids the cumbersome process of replacing the upper and lower molds, which requires the use of external tools by the staff to complete the disassembly and replacement, thus affecting the processing efficiency of EPE composite packaging cotton.

[0025] The top and bottom of the limiting plate 405 are fixedly connected to the limiting block 404 by welding, and the surface of the limiting block 404 is in close contact with the limiting groove 4010. By fixing the limiting block 404 and the limiting plate 405 by welding, this utility model solves the problem that the connection between the limiting block 404 and the limiting plate 405 is prone to loosening or separation, which leads to a decrease in the overall stability of the limiting component 4. This achieves the effect of enhancing the connection strength between the limiting plate 405 and the limiting block 404, ensuring that the limiting block 404 slides smoothly and without shaking in the limiting groove 4010, thereby improving the reliability and service life of the limiting component 4.

[0026] The top and bottom sides of the movable groove 401 are fixedly connected to the fixing plates 402, and the inner cavity of the fixing plates 402 is fixedly connected to the lower base 3 or the upper base 8 by fixing bolts 403. By fixing the holes of the fixing bolts 403, the problem of inconvenient or unstable connection between the movable groove 401 and the upper / lower base 3 or the need for complex tooling is solved. The limit component 4 can be quickly and firmly installed onto the upper base 8 or the lower base 3 using standard fasteners, which simplifies the assembly process and ensures the connection strength.

[0027] The surface of the turntable 408 is provided with anti-slip threads, and the number of anti-slip threads is no less than fifteen. The anti-slip threads solve the problem that the operator is prone to slipping when manually rotating the turntable 408, which leads to difficulty in applying force, low efficiency, and even possible hand injury. The anti-slip threads significantly increase the friction of the surface of the turntable 408, allowing the operator to hold and rotate the turntable 408 more easily and steadily to drive the screw 406, thereby improving the convenience and safety of operation.

[0028] Movable holes 7 are provided at the four corners of the inner cavity of the movable plate 1, and the inner cavity of the movable hole 7 is adapted to the external sliding rod. Through the movable hole 7, the problem that the movable plate 1 may deviate, shake or get stuck during the lifting process is solved, which affects the precise alignment of the upper and lower molds and the stability of the movement. The movable plate 1 is precisely guided to lift and lower smoothly in the vertical direction by the sliding rod, ensuring that the upper mold 9 and the lower mold 6 always maintain good alignment, thereby improving the molding accuracy and the reliability of equipment operation.

[0029] The inner side of the limiting plate 405 is in close contact with the upper base 8, the upper mold 9, the lower base 3, and the lower mold 6. By making the inner side of the limiting plate 405 in close contact with the upper base 8, the upper mold 9, the lower base 3, and the lower mold 6, the risk of loosening or displacement of the mold (upper mold or lower mold) in its slot 5 is solved, which affects the molding accuracy and stability after mold change. After the mold is inserted into the slot 5, the tightened limiting plate 405 applies a stable clamping force from the side to tightly press and fix the mold and its corresponding base (upper base 8 or lower base 3), preventing any displacement of the mold during processing and ensuring the molding quality.

[0030] When using this utility model: When it is necessary to replace the upper mold 9 and the lower mold 6, first rotate the turntable 408, which drives the screw 406 to rotate. The movable shaft 407 cooperates with the screw 406 to rotate, and the screw 406 cooperates with the screw hole 409 to drive the limiting plate 405 to retract. The limiting groove 4010 and the limiting block 404 in the movable groove 401 cooperate with the limiting plate 405 to retract into the movable groove 401. When the inner side of the limiting plate 405 does not contact the upper mold 9 or the lower mold 6, the upper mold 9 and the lower mold 6 can be moved. The upper mold 9 and the lower mold 6 are respectively removed from the locking positions in the upper base 8 and the lower base 3. When slot 5 is removed, the required upper mold 9 and lower mold 6 can be replaced. After the new upper mold 9 and lower mold 6 are placed in the designated position, the turntable 408 is reversed. The turntable 408 drives the screw 406 to reverse. The screw 406, in conjunction with the screw hole 409, drives the limiting plate 405 inward. When the inner side of the limiting plate 405 contacts the upper mold 9 or lower mold 6, the upper mold 9 and lower mold 6 can be fixed in the slot 5 in the upper base 8 and lower base 3. The above avoids the cumbersome process of replacing the upper and lower molds, which requires the use of external tools by the staff to complete the disassembly and replacement, thus affecting the processing efficiency of EPE composite packaging cotton.

[0031] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A quick-change EPE composite packaging cotton molding die device, comprising a movable plate (1) and a base plate (2), characterized in that: The bottom of the movable plate (1) is provided with an upper base (8), and the top of the base plate (2) is provided with a lower base (3). A slot (5) is provided on one side of the upper base (8) and the lower base (3). An upper mold (9) is engaged in the slot (5) of the upper base (8), and a lower mold (6) is engaged in the slot (5) of the lower base (3). Limiting components (4) are provided on both the front and back sides of the upper base (8) and the lower base (3). The limiting components (4) include a movable groove (401). A movable groove is provided on the outer side of the inner cavity of the movable groove (401). A movable shaft (407) is rotatably connected to a screw (406) in its inner cavity. A turntable (408) is fixedly connected to the outer side of the screw (406). A limiting plate (405) is sleeved on the surface of the screw (406). A limiting block (404) is provided at the top and bottom of the limiting plate (405). A limiting groove (4010) adapted to the limiting block (404) is opened at the top and bottom of the inner cavity of the movable groove (401). A screw hole (409) adapted to the screw (406) is opened in the inner cavity of the limiting plate (405).

2. The EPE composite packaging cotton molding die device with quick mold changing capability according to claim 1, characterized in that: The top and bottom of the limiting plate (405) are fixedly connected to the limiting block (404) by welding, and the surface of the limiting block (404) is in close contact with the limiting groove (4010).

3. The EPE composite packaging cotton molding die device with quick mold changing capability according to claim 1, characterized in that: The top and bottom sides of the movable groove (401) are fixedly connected to the fixing plates (402), and the inner cavity of the fixing plates (402) is fixedly connected to the lower base (3) or the upper base (8) by fixing bolts (403).

4. The EPE composite packaging cotton molding die device with quick mold changing capability according to claim 1, characterized in that: The surface of the turntable (408) is provided with anti-slip threads, and the number of anti-slip threads is not less than fifteen.

5. The EPE composite packaging cotton molding die device with quick mold changing capability according to claim 1, characterized in that: The four corners of the inner cavity of the movable plate (1) are provided with movable holes (7), and the inner cavity of the movable holes (7) is adapted to the external sliding rod.

6. The EPE composite packaging cotton molding die device with quick mold change capability according to claim 1, characterized in that: The inner side of the limiting plate (405) is in close contact with the upper base (8) and the upper mold (9), as well as the lower base (3) and the lower mold (6).