Multi-angle bending forming die for pearl wool profile
By designing a multi-angle bending forming mold for pearl cotton profiles and adopting a cylinder-driven multi-angle bending and automatic ejection structure, the problems of low forming accuracy and inconvenient demolding of the mold were solved, realizing efficient and reliable multi-angle forming and automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING YUBEI DISTRICT XUANYU PLASTIC PROD CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-26
AI Technical Summary
Existing EPE foam profile molds cannot meet the requirements of complex shapes in multi-angle bending, resulting in low forming accuracy and efficiency. Manual operation is inefficient and difficult to adapt to automated production. Furthermore, the demolding process is not reliable enough.
Design a multi-angle bending forming mold for pearl cotton profiles. It adopts a cylinder-driven multi-angle bending design and an automatic ejection demolding structure. It uses a return spring to achieve non-destructive demolding and achieves efficient forming of complex shapes through precise angle control.
It enables precise multi-angle molding of pearl cotton profiles, reduces packaging gaps and edge waste, improves material utilization and production efficiency, and ensures the reliability of demolding and adaptability to automated production.
Smart Images

Figure CN224408452U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pearl cotton processing technology, and in particular to a multi-angle bending forming mold for pearl cotton profiles. Background Technology
[0002] EPE foam, as a high-performance cushioning material, is widely used in the packaging and protection of electronic products, furniture, home appliances, and automotive parts due to its lightweight, flexibility, and environmental friendliness. To accommodate the complex shapes of various products, EPE foam profiles need to be molded into specific angles and shapes to achieve tight wrapping and efficient cushioning.
[0003] Chinese Patent Publication No. (CN215791243U) discloses a molding die for processing pearl cotton packaging products, including a base, a top cover fixedly installed on the top of the base, an operating plate fixedly installed on the top of the top cover, a support mechanism movably installed inside the base, and a hot pressing mechanism movably installed inside the top cover. The support mechanism includes a support frame, a slide groove, a limiting plate, a knob, a support rod, a support plate, a clamping plate, a sliding opening, and a limiting shaft. The support frame is movably installed inside the base, and slide grooves are provided on both the left and right sides of the front of the support frame. Limiting plates are slidably installed on both the left and right sides of the inner wall of the support frame.
[0004] However, the above solutions still have the following drawbacks during implementation: In terms of multi-angle bending, single-angle molds cannot meet the requirements of complex shapes, while multi-station molds suffer from low forming accuracy and low efficiency. Manual bending is more likely to cause large angle errors and poor consistency. In the demolding process, traditional manual operation is inefficient and difficult to adapt to automated production. To address this issue, this application proposes a solution: designing a pearl cotton profile forming mold with multi-angle bending design and automatic ejection demolding design. This mold achieves efficient forming of complex shapes through precise angle control and uses a spring push block ejection structure to achieve non-destructive demolding, significantly improving production efficiency and product quality. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a multi-angle bending forming mold for pearl cotton profiles. This solves the problems that single-angle molds cannot meet the requirements of complex shapes, while multi-station molds suffer from low forming accuracy and low efficiency. Manual bending is more likely to cause large angle errors and poor consistency. In the demolding process, traditional manual operation is inefficient and difficult to adapt to automated production.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A multi-angle bending forming mold for pearl cotton profiles includes a frame, an upper mold disposed within the frame, two fixing blocks disposed below the upper mold, a lower mold fixedly connected to the upper surfaces of the two fixing blocks, two ejector blocks movably engaged within the lower mold, a return spring fixedly connected to the lower surfaces of each of the two ejector blocks, a support block movably engaged within the lower mold, two push blocks fixedly connected to the upper surface of the support block, and a cylinder fixedly mounted on the upper surface of the frame, the piston of the cylinder being fixedly connected to the upper mold.
[0008] Preferably, the lower mold surface has two rectangular grooves, the support block is movably engaged with the two rectangular grooves, and a second cylinder is fixedly installed inside the frame, with the piston of the second cylinder fixedly connected to the support block.
[0009] Preferably, the lower mold surface has two slots, the two ejector blocks are respectively engaged with the two slots, and the two return springs are respectively fixedly connected to the two slots.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] 1. After the upper mold is initially attached to the lower mold, the piston of the cylinder is activated to push the fixed support block upward. During the movement of the support block, two fixed push blocks will move together. The upper ends of the two push blocks are arc-shaped. The upward movement will push the left and right sides of the material to fit with the upper mold for secondary bending, thereby completing the multi-angle bending of the material. For irregular or multi-angled items, the multi-angle bent pearl cotton profile can be customized to fit the outline of the item closely through the bending angle, reducing packaging gaps and reducing the risk of shaking during transportation. The overall multi-angle bending can reduce the waste generated by traditional cutting processes, improve material utilization through precise molding, and reduce production costs.
[0012] 2. During the process of the upper mold pushing the material to fit with the lower mold, the material will squeeze the two ejector blocks set in the lower mold. The two ejector blocks will be completely locked in the two slots opened on the surface of the lower mold under pressure, compressing the two return springs. As the bending is completed, all parts return to their original positions, and the upper mold moves upward. At this time, the elastic potential energy of the return springs can automatically push the ejector blocks after the mold is opened, pushing the molded product out of the cavity of the lower mold, avoiding the product from being stuck in the mold due to adhesion, shrinkage, etc., and ensuring the reliability of the demolding process. Attached Figure Description
[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0014] Figure 1This is an overall structural diagram of the present invention;
[0015] Figure 2 This is a structural diagram of the lower mold of this utility model;
[0016] Figure 3 This is a structural diagram of the pusher block of this utility model;
[0017] Figure 4 This is a structural diagram of the ejector block of this utility model.
[0018] Legend: 1. Frame; 2. Cylinder 1; 3. Upper mold; 4. Lower mold; 5. Fixing block; 6. Support block; 7. Cylinder 2; 8. Ejector block; 9. Push block; 10. Rectangular groove; 11. Slot; 12. Return spring. Detailed Implementation
[0019] This application provides a multi-angle bending forming mold for pearl cotton profiles, effectively solving the problems that single-angle molds cannot meet the needs of complex shapes, and multi-station molds have low forming accuracy and low efficiency. Manual bending is more likely to cause large angle errors and poor consistency. In the demolding process, traditional manual operation is inefficient and difficult to adapt to automated production. This application designs a pearl cotton profile forming mold with multi-angle bending design and automatic ejection demolding design. This mold achieves efficient forming of complex shapes through precise angle control and uses a spring push block ejection structure to achieve non-destructive demolding, significantly improving production efficiency and product quality.
[0020] Example
[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the problems that single-angle molds cannot meet the requirements of complex shapes, while multi-station molds suffer from low forming accuracy and low efficiency. Manual bending is more likely to cause large angle errors and poor consistency. In the demolding process, traditional manual operation is inefficient and difficult to adapt to automated production. The overall idea is as follows:
[0022] To address the problems existing in the prior art, this utility model provides a multi-angle bending forming mold for pearl cotton profiles, including a frame 1. An upper mold 3 is disposed within the frame 1. Two fixing blocks 5 are disposed below the upper mold 3. A lower mold 4 is fixedly connected to the upper surface of the two fixing blocks 5. Two ejector blocks 8 are movably engaged within the lower mold 4. Return springs 12 are fixedly connected to the lower surface of each ejector block 8. A support block 6 is movably engaged within the lower mold 4. Two push blocks 9 are fixedly connected to the upper surface of the support block 6. A cylinder 2 is fixedly installed on the upper surface of the frame 1. The piston of cylinder 2 is fixedly connected to the upper mold 3. During use, material is placed on the upper surface of the lower mold 4. After placement, the piston of cylinder 2 is activated, causing the fixed upper mold 3 to move downwards. During the process, the material will be pushed to fit with the lower mold 4, thereby achieving bending of the material. After the upper mold 3 initially fits with the lower mold 4, the piston of the cylinder 7 will push the fixed support block 6 upward. During the movement of the support block 6, it will drive the two fixed push blocks 9 to move together. The upper ends of the two push blocks 9 are both arc-shaped. The upward movement will push the left and right sides of the material to fit with the upper mold 3 for secondary bending, thereby completing the multi-angle bending of the material. For irregular or multi-angled items, the multi-angle bent pearl cotton profile can be customized to fit the outline of the item closely through the bending angle, reducing packaging gaps and reducing the risk of shaking during transportation. The overall multi-angle bending can reduce the corner waste generated by traditional cutting processes, improve material utilization through precise molding, and reduce production costs.
[0023] Two rectangular slots 10 are formed on the surface of the lower mold 4. The support block 6 is movably engaged with the two rectangular slots 10. A cylinder 7 is fixedly installed inside the frame 1. The piston of the cylinder 7 is fixedly connected to the support block 6. Two slots 11 are formed on the surface of the lower mold 4. Two ejector blocks 8 are movably engaged with the two slots 11 respectively. Two return springs 12 are fixedly connected with the two slots 11 respectively. During the process of the upper mold 3 pushing the material to fit with the lower mold 4, the material will squeeze the two ejector blocks 8 set in the lower mold 4. The two ejector blocks 8 will be completely engaged in the two slots 11 formed on the surface of the lower mold 4 under pressure, compressing the two return springs 12. As the bending is completed, all parts are reset and the upper mold 3 moves upward. At this time, the elastic potential energy of the return springs 12 can automatically push the ejector blocks 8 after the mold is opened, and eject the molded product from the cavity of the lower mold 4, avoiding the product from being stuck in the mold 4 due to adhesion, shrinkage, etc., and ensuring the reliability of the demolding process.
[0024] Among them, frame 1 is used to support and fix the various components of the mold, providing a stable installation base for the entire mold and ensuring the stability and reliability of the mold during operation;
[0025] Cylinder 2 drives the upper mold 3 to move up and down through piston movement, realizing the initial bending of the pearl cotton material and preparing for subsequent multi-angle bending.
[0026] The upper mold 3 and the lower mold 4 work together to perform initial bending of the pearl cotton material, and then complete the secondary bending under the action of the push block 9 to achieve multi-angle bending and forming.
[0027] The lower mold 4 is the main place for forming pearl cotton material. It works with the upper mold 3 to complete the initial bending, and at the same time provides installation space for components such as the ejector block 8.
[0028] The fixing block 5 is used to fix the lower mold 4 to ensure that the lower mold 4 is stable in position during operation and to ensure the accuracy of bending and forming.
[0029] The support block 6 moves upward under the push of the cylinder 7, which drives the push block 9 to move, thereby realizing the secondary bending of the pearl cotton material and completing multi-angle forming.
[0030] Cylinder 2 7 pushes support block 6 upward through piston movement, providing power to push block 9 and realizing secondary bending of pearl cotton material;
[0031] Under the action of the return spring 12, the ejector block 8 ejects the formed pearl cotton profile from the lower mold 4, realizing automatic demolding and improving production efficiency;
[0032] The upper end of the pusher block 9 has an arc design. It moves upward under the drive of the support block 6, pushing the left and right sides of the pearl cotton material to fit with the upper mold 3, completing the secondary bending.
[0033] The rectangular groove 10 provides space for the support block 6 to move, ensuring that the support block 6 can move upward smoothly under the push of the cylinder 7, thus achieving a secondary bending.
[0034] The slot 11 is used to engage the ejector block 8. Under the pressure of the pearl cotton material, the ejector block 8 compresses the return spring 12 to prepare for automatic demolding.
[0035] After the mold is opened, the reset spring 12 releases its elastic potential energy, pushing the ejector block 8 to eject the formed pearl cotton profile, thus achieving automatic demolding and avoiding material retention.
[0036] Working principle:
[0037] During use, the material is placed on the upper surface of the lower mold 4. After placement, the piston of cylinder 2 is activated, causing the fixed upper mold 3 to move downwards. During the movement of the upper mold 3, the material is pushed to fit against the lower mold 4, thus achieving bending of the material. After the upper mold 3 initially fits against the lower mold 4, the piston of cylinder 7 is activated, causing the fixed support block 6 to move upwards. During the movement of the support block 6, two fixed push blocks 9 move together. The upper ends of both push blocks 9 are arc-shaped. The upward movement pushes the left and right sides of the material to fit against the upper mold 3 for a secondary bending, thus completing the multi-angle bending of the material. For irregular or multi-faceted items, the multi-angle bent pearl cotton profile can be customized with bending angles to closely fit the outline of the item, reducing... Minimal packaging gaps reduce the risk of shaking during transportation. The overall multi-angle bending reduces waste from traditional cutting processes. Precision molding improves material utilization and reduces production costs. During the process of the upper mold 3 pushing the material to fit with the lower mold 4, the material will squeeze the two ejector blocks 8 set in the lower mold 4. The two ejector blocks 8, under pressure, will be completely locked in the two slots 11 opened on the surface of the lower mold 4, compressing the two return springs 12. As the bending is completed, all parts return to their original positions, and the upper mold 3 moves upward. At this time, the elastic potential energy of the return springs 12 can automatically push the ejector blocks 8 after the mold opens, ejecting the molded product from the cavity of the lower mold 4, avoiding the product from being stuck in the mold 4 due to adhesion, shrinkage, etc., and ensuring the reliability of the demolding process.
[0038] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A multi-angle bending forming mold for pearl cotton profiles, comprising a frame (1), characterized in that, The frame (1) is provided with an upper mold (3), and two fixing blocks (5) are provided below the upper mold (3). The upper surfaces of the two fixing blocks (5) are fixedly connected to a lower mold (4). Among them, two ejector blocks (8) are movably engaged in the lower mold (4), and a reset spring (12) is fixedly connected to the lower surface of each of the two ejector blocks (8). A support block (6) is movably engaged in the lower mold (4), and two push blocks (9) are fixedly connected to the upper surface of the support block (6).
2. The multi-angle bending forming mold for pearl cotton profiles as described in claim 1, characterized in that: A cylinder (2) is fixedly installed on the upper surface of the frame (1); The piston of cylinder 1 (2) is fixedly connected to the upper mold (3).
3. The multi-angle bending forming mold for pearl cotton profile as described in claim 1, characterized in that: The lower mold (4) has two rectangular grooves (10) on its surface.
4. The multi-angle bending forming mold for pearl cotton profile as described in claim 3, characterized in that: The support block (6) is movably engaged with the two rectangular slots (10).
5. The multi-angle bending forming mold for pearl cotton profiles as described in claim 1, characterized in that: The frame (1) is fixedly installed with cylinder 2 (7); The piston of cylinder two (7) is fixedly connected to the support block (6).
6. The multi-angle bending forming mold for pearl cotton profile as described in claim 1, characterized in that: The lower mold (4) has two slots (11) on its surface.
7. The multi-angle bending forming mold for pearl cotton profiles as described in claim 6, characterized in that: The two ejector blocks (8) are respectively engaged with the two slots (11).
8. The multi-angle bending forming mold for pearl cotton profile as described in claim 7, characterized in that: The two reset springs (12) are fixedly connected to the two slots (11) respectively.