Punching machining die for refrigerator door shell
By designing a refrigerator door shell punching die driven by a support frame and drive components, the problems of inconvenient die replacement and difficulty in removing finished products were solved, thereby improving production efficiency and continuous production capacity.
Patent Information
- Application Number
- CN202520492727.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-20
AI Technical Summary
The existing refrigerator door shell molds are inconvenient to replace, resulting in production stoppages, delays, and low production efficiency. Furthermore, the finished products are difficult to remove, affecting continuous production.
A refrigerator door shell punching die was designed, comprising a support frame, mounting shell, driving component, limiting block, and spring. Driven by a motor and cylinder, the die can be quickly changed and the finished product can be easily removed.
It enables quick mold changes and convenient removal of finished products, reducing downtime and labor costs and improving production efficiency.
Smart Images

Figure CN223932381U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigerator processing technology, specifically a die for punching refrigerator door shells. Background Technology
[0002] The refrigerator door shell is the outer casing installed on the refrigerator door, primarily serving to protect the internal structure, insulate against external heat, and maintain a stable internal temperature. It also provides an aesthetically pleasing appearance and an easy-to-clean surface. Refrigerator door shells are made from various materials, commonly including steel, plastic, and ABS resin. Steel door shells offer high strength and durability but are relatively heavy; plastic and ABS resin door shells are lighter and have good formability, and their safety can be improved by adding flame retardants. The manufacturing processes for refrigerator door shells mainly include stamping, injection molding, and vacuum forming. Stamping is suitable for producing steel door shells, where the steel sheet is stamped into shape using a mold.
[0003] As an important component of refrigerators, refrigerator door shells not only protect the internal structure, insulate against external heat, and maintain a stable internal temperature, but also provide an aesthetically pleasing appearance and an easy-to-clean surface. However, changing some molds can be inconvenient, often requiring production line shutdowns. This not only wastes valuable production time but may also affect the progress of subsequent processes. For companies requiring continuous production, interruptions in mold changing can lead to serious production delays. The inconvenience of mold changing limits a company's ability to produce different types of refrigerator door shells. Furthermore, if finished products are difficult to remove, it may take a long time to remove them after each punching, thus reducing overall production efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a die for punching refrigerator door shells to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a refrigerator door shell punching die, including a support frame, and further comprising:
[0006] A mounting shell is fixed to the top of the support frame. The inner wall of the mounting shell is provided with a first driving member. The outer side of the first driving member is provided with a fixing plate. The inner wall of the fixing plate is fixed with a connecting rod. The top of the connecting rod is fixed with a connecting plate. The top of the connecting plate is fixed with a first support rod. The top of the first support rod is fixed with a fixing ring. The top of the support frame is fixed with a support plate.
[0007] A second driving component is installed on the top of the support plate. A fixing plate is provided on the outer side of the second driving component. A limit block is installed on the inner wall of the fixing plate. A first spring is fixed on the inner wall of the limit block. A punching plate is installed at the bottom of the fixing plate. A second spring is fixed on the inner wall of the punching plate. An upper mold is fixed at the bottom of the second spring. A cutter is fixed at the bottom of the punching plate. A lower mold is fixed at the top of the support plate.
[0008] Preferably, a fixing block is fixed to the outer side of the support plate, and a second support rod is fixed to the inner wall of the fixing block.
[0009] Preferably, a handle is provided on the outer side of the support plate, a connecting block is fixed to the top of the handle, and a limit rod is fixed to the inner wall of the connecting block.
[0010] Preferably, a mounting block is fixed to the outer side of the mounting shell, and a mounting plate is fixed to the top of the mounting shell.
[0011] Preferably, a support frame is fixed to the top of the support plate, and bolts are threaded onto the inner wall of the support plate.
[0012] Preferably, the first driving component includes a motor fixed to the inner wall of the mounting housing, the output end of the motor is fixed with a screw, and the outer side of the screw is threadedly connected to the inner wall of the fixed plate.
[0013] Preferably, the second driving component includes a cylinder fixed to the top of the support plate, the piston rod of the cylinder being fixed with a mounting plate, and the bottom of the mounting plate being fixedly connected to the top of the fixed plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention features a motor that facilitates the rotation of a screw, which in turn allows for the lifting and lowering of a fixed plate. The fixed plate, in turn, facilitates the lifting and lowering of a connecting rod and a first support rod, thereby lifting the cut finished product onto a fixed ring for easy removal. A limiting block provides a convenient way to restrict the cutting plate, and a first spring, in conjunction with the limiting block, facilitates the disassembly and installation of the mold, enabling mold replacement and reducing time and labor costs. Attached Figure Description
[0016] Figure 1 A schematic diagram of a preferred embodiment of the die for punching refrigerator door shells provided by this utility model;
[0017] Figure 2 A schematic diagram of the first driving component provided by this utility model;
[0018] Figure 3A schematic diagram of the second driving component provided by this utility model;
[0019] Figure 4 A schematic diagram of the limiting rod structure provided by this utility model.
[0020] In the diagram: 1. Support frame; 2. Mounting shell; 3. First driving component; 31. Motor; 32. Screw; 4. Fixing plate; 5. Connecting rod; 6. Connecting plate; 7. First support rod; 8. Fixing ring; 9. Support plate; 10. Second driving component; 101. Cylinder; 102. Mounting plate; 11. Fixing plate; 12. Limiting block; 13. First spring; 14. Punching plate; 15. Second spring; 16. Upper die; 17. Cutting blade; 18. Lower die; 19. Fixing block; 20. Second support rod; 21. Handle; 22. Connecting block; 23. Limiting rod; 24. Mounting block; 25. Mounting plate; 26. Support frame; 27. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-4As shown, a refrigerator door shell punching die includes a support frame 1. A mounting shell 2 is fixed to the top of the support frame 1. The mounting shell 2 facilitates the installation of a first driving component 3. The inner wall of the mounting shell 2 is provided with the first driving component 3, which facilitates the lifting and lowering of a fixed plate 4. The outer side of the first driving component 3 is provided with the fixed plate 4, which facilitates the lifting and lowering of a connecting rod 5. The inner wall of the fixed plate 4 is fixed with the connecting rod 5, which facilitates the installation of a connecting plate 6. A connecting plate 6 is fixed to the top of the connecting rod 5. The connecting plate 6 facilitates the installation of the first support rod 7. The first support rod 7 is fixed to the top of the connecting plate 6, facilitating the ejection of the finished product with the fixing ring 8. The fixing ring 8 is fixed to the top of the first support rod 7, facilitating the ejection of the finished product. A support plate 9 is fixed to the top of the support frame 1, facilitating the installation of the second driving component 10. The second driving component 10 is located on the top of the support plate 9. The second driving component 10 has a fixed plate 11 on its outer side, which facilitates the vertical lifting and lowering of the fixed plate 11. The fixed plate 11 allows for the installation of a limiting block 12. A limiting block 12 is installed on the inner wall of the fixed plate 11, facilitating the installation and removal of the punching plate 14. A first spring 13 is fixed to the inner wall of the limiting block 12, allowing for the limiting of the punching plate 14. The punching plate 14 is installed at the bottom of the fixed plate 11, facilitating the vertical lifting and lowering of the fixed plate 11. The second spring 15 is installed on the inner wall of the punching plate 14. The second spring 15 facilitates the rebound of the upper mold 16, thereby sending out the cutter 17. The upper mold 16 is fixed to the bottom of the second spring 15. The upper mold 16 facilitates the limiting of the material. The cutter 17 is fixed to the bottom of the punching plate 14. The cutter 17 facilitates the cutting of the material. The lower mold 18 is fixed to the top of the support plate 9. The lower mold 18 facilitates the cutting of the material in conjunction with the cutter 17.
[0023] A fixing block 19 is fixed to the outer side of the support plate 9, and a second support rod 20 is fixed to the inner wall of the fixing block 19. By setting the fixing block 19, it is easy to install the second support rod 20, and by setting the second support rod 20, it is easy to support the second drive component 10.
[0024] A handle 21 is provided on the outer side of the support plate 9. A connecting block 22 is fixed on the top of the handle 21. A limit rod 23 is fixed on the inner wall of the connecting block 22. By providing the handle 21, it is easy to remove waste materials. By providing the connecting block 22, it is easy to install the limit rod 23. By providing the limit rod 23, it is easy to remove the cut ring material.
[0025] Mounting block 24 is fixed to the outside of mounting shell 2, and mounting plate 25 is fixed to the top of mounting shell 2; by setting mounting block 24, mounting shell 2 can be installed easily, and by setting mounting plate 25, mounting shell 2 can be fixed easily.
[0026] A support frame 26 is fixed to the top of the support plate 9, and bolts 27 are threadedly connected to the inner wall of the support plate 9. The support frame 26 facilitates the installation of the lower mold 18, and the bolts 27 facilitate the installation of the support frame 26.
[0027] The first driving component 3 includes a motor 31 fixed to the inner wall of the mounting housing 2. The output end of the motor 31 is fixed with a screw 32, and the outer side of the screw 32 is threadedly connected to the inner wall of the fixed plate 4. By setting the motor 31, it is easy to drive the screw 32 to rotate. By setting the screw 32, it is easy to drive the fixed ring 8 to rise and fall, thereby ejecting the finished product.
[0028] The second driving component 10 includes a cylinder 101 fixed to the top of the support plate 9. The piston rod of the cylinder 101 is fixed with a mounting plate 102, and the bottom of the mounting plate 102 is fixedly connected to the top of the fixed plate 11. By setting the cylinder 101, the mounting plate 102 can be easily driven to rise and fall. By setting the mounting plate 102, the punching plate 14 can be easily driven to rise and fall, thereby cutting the material.
[0029] Working principle: First, the material is conveyed into the mold via rollers. Then, cylinder 101 is activated, which drives mounting plate 102 to move vertically. Mounting plate 102 drives fixing plate 11 to move vertically. Fixing plate 11 drives punching plate 14 to move vertically. Punching plate 14 drives second spring 15, cutter 17 and upper mold 16 to move vertically until the mold fixes the material. At this time, upper mold 16 will compress second spring 15 due to pressure. Then, the cutters 17 on all four sides will continue to move downward, thus cutting the material according to the shape of the mold. Then, motor 31 is activated, which drives screw 32 to rotate. Screw 32 drives fixing plate 4, connecting rod 5, connecting plate 6 and first support rod 7 to rise and fall, thereby cooperating with fixing ring 8 to push out the cut finished product. At this time, the finished product can be taken out.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A die for punching a refrigerator door shell, comprising a support frame (1), characterized in that, Also includes: A mounting shell (2) is fixed to the top of the support frame (1). The inner wall of the mounting shell (2) is provided with a first driving member (3). A fixing plate (4) is provided on the outer side of the first driving member (3). A connecting rod (5) is fixed to the inner wall of the fixing plate (4). A connecting plate (6) is fixed to the top of the connecting rod (5). A first support rod (7) is fixed to the top of the connecting plate (6). A fixing ring (8) is fixed to the top of the first support rod (7). A support plate (9) is fixed to the top of the support frame (1). A second driving member (10) is set on the top of the support plate (9). A fixing plate (11) is set on the outer side of the second driving member (10). A limit block (12) is installed on the inner wall of the fixing plate (11). A first spring (13) is fixed on the inner wall of the limit block (12). A punching plate (14) is installed at the bottom of the fixing plate (11). A second spring (15) is fixed on the inner wall of the punching plate (14). An upper mold (16) is fixed at the bottom of the second spring (15). A cutter (17) is fixed at the bottom of the punching plate (14). A lower mold (18) is fixed at the top of the support plate (9).
2. The refrigerator door shell punching die according to claim 1, characterized in that: A fixing block (19) is fixed to the outer side of the support plate (9), and a second support rod (20) is fixed to the inner wall of the fixing block (19).
3. The refrigerator door shell punching die according to claim 1, characterized in that: A handle (21) is provided on the outer side of the support plate (9), and a connecting block (22) is fixed on the top of the handle (21). A limit rod (23) is fixed on the inner wall of the connecting block (22).
4. The refrigerator door shell punching die according to claim 1, characterized in that: An mounting block (24) is fixed to the outside of the mounting shell (2), and a mounting plate (25) is fixed to the top of the mounting shell (2).
5. A refrigerator door shell punching die according to claim 1, characterized in that: The top of the support plate (9) is fixed with a support frame (26), and the inner wall of the support plate (9) is threaded with bolts (27).
6. The refrigerator door shell punching die according to claim 1, characterized in that: The first driving component (3) includes a motor (31) fixed to the inner wall of the mounting housing (2). The output end of the motor (31) is fixed with a screw (32), and the outer side of the screw (32) is threadedly connected to the inner wall of the fixed plate (4).
7. A refrigerator door shell punching die according to claim 1, characterized in that: The second driving member (10) includes a cylinder (101) fixed to the top of the support plate (9), the piston rod of the cylinder (101) is fixed with a mounting plate (102), and the bottom of the mounting plate (102) is fixedly connected to the top of the fixing plate (11).