Refrigerator door liner punching die

Abstract

The utility model belongs to punch die field, concretely is a kind of refrigerator door inner container punch die, including base, the top of base is equipped with two groups of cylinder fixing seat, the inside of cylinder fixing seat is equipped with two groups of first cylinder, the bottom of first cylinder is equipped with equal height cover;The output end of first cylinder is connected gas pressure rod, the other end of gas pressure rod is connected flange, the outside of flange is connected flange cover plate, the other end of flange cover plate is connected moving frame, the other end of moving frame is connected heavy head fixed plate, the other end of heavy head fixed plate is connected punch press plate, the other end of punch press plate is centrally equipped with second punch;By this structure design, by being set again in the original punch die opening position's top a cylinder, the positioning of opening position is carried out, so that punch cylinder prevents punch process and cylinder return process in punch process, ensure that inner container does not deform, ensure the precision of punch position.

Description

Technical Field

[0001] This utility model belongs to the field of punching dies, specifically a punching die for the inner liner of a refrigerator door. Background Technology

[0002] The inner liner is the left-side door with a flip-up beam used on the refrigerator door. The inner liner is fixedly connected to the flip-up beam through two holes. If the position of the holes on the left-side door is off, the installation position of the flip-up beam will be off, which will cause the door seal on one side to not close properly and result in cold leakage.

[0003] In existing door liner punching devices, the opening positions of the door liner correspond one-to-one with the cylinders. After punching, when the cylinder retracts, the circumference of the hole in the inner liner will move under the action of the punch as the cylinder retracts, causing the punch to retract and resulting in inaccurate punching position accuracy. Consequently, the aforementioned single-sided door seal closing does not meet the design requirements, causing cold leakage.

[0004] Therefore, this utility model provides a punching mold for the inner liner of a refrigerator door. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The refrigerator door inner liner punching mold of this utility model includes a base, the top of the base is provided with two sets of cylinder fixing seats, the inside of the cylinder fixing seats is provided with two sets of first cylinders, and the bottom of the first cylinders is equipped with equal height sleeves; the output end of the first cylinder is connected to a pneumatic rod, the other end of the pneumatic rod is connected to a flange, the outside of the flange is connected to a flange cover plate, the other end of the flange cover plate is connected to a moving frame, the other end of the moving frame is connected to a weight fixing plate, the other end of the weight fixing plate is connected to a punch pressure plate, and a second punch is installed at the center of the other end of the punch pressure plate; with this structural design, by setting another cylinder above the original punching mold opening position, the opening position is positioned, so that the punching cylinder prevents deformation of the inner liner during the punching process and the cylinder retraction process, and ensures the accuracy of the punching position.

[0007] Preferably, a first bracket is installed at the top of the base, a second bracket is welded to the top of the first bracket, a third bracket is connected to the top of the second bracket, and two sets of second cylinders are provided on the outside of the third bracket. The output end of the second cylinder is connected to the pressing assembly, and the bottom of the pressing assembly is connected to the pressing plate. With this structural design, the pressing assembly is driven by the second cylinder, which then drives the bottom pressing plate to press and fix the refrigerator liner, thereby preventing the refrigerator liner from shifting position.

[0008] Preferably, the bottom of the motion frame is slidably connected to a linear guide rail, which is welded to the base; a striking block is welded to one side of the motion frame; this structural design limits the movement of the punching structure.

[0009] Preferably, a first punch is provided on one side of the second punch, and the connecting component of the first punch is the same as that of the second punch; this structural design increases the punching efficiency and, through double-end punching and fixing, increases the stability of the mold during punching operations, thereby further ensuring that the inner liner does not deform and ensuring the accuracy of the punching position.

[0010] Preferably, a control box base is welded to one side of the base, and an electrical box is provided at the top of the control box base; a base waste box is installed at the bottom of the base; thereby recycling the waste generated from punching.

[0011] Preferably, the base has a second positioning block on its top side, a third positioning block on one side of the second positioning block, and a fourth positioning block on one side of the third positioning block; a first die is provided on one side of the fourth positioning block, a first positioning block is provided on one side of the first die, and a second die is provided on one side of the first positioning block; this structural design increases the stability of the mold operation.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The refrigerator door inner liner punching mold of this utility model is provided by setting a cylinder above the opening position of the original punching mold to position the opening position, so that the inner liner does not deform during the punching process and the cylinder retraction process, and the accuracy of the punching position is guaranteed.

[0014] 2. The refrigerator door inner liner punching mold of this utility model increases the stability of the mold during punching operation by fixing it with punching holes at both ends, thereby further ensuring that the inner liner does not deform and ensuring the accuracy of the punching position. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is the front view of this utility model;

[0017] Figure 2 This is a side view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a diagram showing the drilling layout of the base;

[0020] Figure 5This is a schematic diagram of a punching structure;

[0021] Figure 6 This is a schematic diagram of the pressure plate structure;

[0022] Figure 7 This is a schematic diagram of the positioning structure;

[0023] In the diagram: 1. Positioning assembly; 2. First punch; 3. Second punch; 4. Pressing assembly; 5. Base; 6. Base scrap box; 7. Control box base; 8. Electrical box; 9. Punch pressing plate; 10. Weight fixing plate; 11. Moving frame; 12. Flange; 13. Flange cover plate; 14. Cylinder fixing seat; 15. First cylinder; 16. Pneumatic rod; 17. Linear guide rail; 18. Equal height sleeve; 19. Impact block; 20. Pressing plate; 21. First support; 22. Second support; 23. Third support; 24. Second cylinder; 25. First die; 26. Second die; 27. First positioning block; 28. Second positioning block; 29. ​​Third positioning block; 30. Fourth positioning block. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] Specific implementation examples are given below.

[0026] like Figures 1 to 7As shown, a refrigerator door inner liner punching mold according to an embodiment of this utility model includes a base 5. Two sets of cylinder fixing seats 14 are provided at the top of the base 5. Two sets of first cylinders 15 are provided inside the cylinder fixing seats 14. Equal-height sleeves 18 are installed at the bottom of the first cylinders 15. The output end of the first cylinder 15 is connected to a pneumatic rod 16, and the other end of the pneumatic rod 16 is connected to a flange 12. A flange cover plate 13 is connected to the outside of the flange 12. The other end of the flange cover plate 13 is connected to a moving frame 11. The other end of the moving frame 11 is connected to a weight fixing plate 10. The other end of the weight fixing plate 10 is connected to a punch pressure plate 9. A second punch 3 is installed at the center of the other end of the punch pressure plate 9. A linear guide rail 17 is slidably connected to the bottom of the moving frame 11. Linear guide rail 17 is welded to base 5; a striking block 19 is welded to one side of motion frame 11; a first punch 2 is provided on one side of the second punch 3, and the connecting component of the first punch 2 is the same as that of the second punch 3; when the refrigerator door liner punching mold is working, firstly, the two sets of second cylinders 24 at the top of base 5 are activated, driving the pressing assembly 4, which in turn causes the pressing plate 20 at the bottom to move down, pressing and fixing the refrigerator liner placed on the mold, thus preventing the refrigerator liner from shifting position; at the same time, the positioning structures such as the first positioning block 27, the second positioning block 28, the third positioning block 29 and the fourth positioning block 30 on the top side of base 5 further accurately position the refrigerator liner, ensuring the accuracy of the subsequent punching position, and providing a prerequisite guarantee for accurate punching.

[0027] A first bracket 21 is installed at the top of the base 5. A second bracket 22 is welded to the top of the first bracket 21. A third bracket 23 is connected to the top of the second bracket 22. Two sets of second cylinders 24 are provided on the outside of the third bracket 23. The output end of the second cylinder 24 is connected to the pressing assembly 4. The bottom of the pressing assembly 4 is connected to the pressing plate 20. A control box base 7 is welded to one side of the base 5. An electrical box 8 is provided at the top of the control box base 7. A base waste box 6 is installed at the bottom of the base 5. A second positioning block 28 is provided on the top side of the base 5. A third positioning block 29 is provided on one side of the second positioning block 28. A fourth positioning block 30 is provided on one side of the third positioning block 29. A first die 25 is provided on one side of the fourth positioning block 30. A first positioning block 27 is provided on one side of the first die 25. A second die 20 is provided on one side of the first positioning block 27. Mold 26; Next, the two sets of first cylinders 15 in the cylinder fixing seat 14 operate, and the pneumatic rod 16 at the output end pushes the flange 12, which drives the motion frame 11 to slide along the linear guide rail 17 via the flange cover plate 13; the motion frame 11 drives the weight fixing plate 10 and the punch pressure plate 9, so that the first punch 2 and the second punch 3 move synchronously towards the inner liner of the refrigerator to perform punching operation; the first cylinder 15 above the original punching mold opening position positions the opening position during punching and retraction to prevent the inner liner from deforming; and the simultaneous punching of the two punches increases the stability of the mold during punching, further ensuring that the inner liner does not deform, ensuring the accuracy of the punching position, and making the subsequent refrigerator door seal suction more in line with the design requirements, reducing cold leakage; the waste generated by punching falls into the base waste box 6 at the bottom of the base 5 to realize waste recycling.

[0028] During operation, when the refrigerator door inner liner punching mold is working, firstly, the two sets of second cylinders 24 at the top of the base 5 are activated, driving the pressing assembly 4, which in turn causes the bottom pressing plate 20 to move down, pressing and fixing the refrigerator inner liner placed on the mold to prevent the refrigerator inner liner from shifting position; at the same time, the positioning structures such as the first positioning block 27, the second positioning block 28, the third positioning block 29, and the fourth positioning block 30 on the top side of the base 5 further accurately position the refrigerator inner liner, ensuring the accuracy of the subsequent punching position and providing a prerequisite guarantee for precise punching; then, the two sets of first cylinders 15 in the cylinder fixing seat 14 operate, and the output air pressure rod 16 pushes the flange 12, which is then pressed and fixed by the method. The cover plate 13 drives the motion frame 11 to slide along the linear guide rail 17; the motion frame 11 drives the head fixing plate 10 and the punch pressure plate 9, so that the first punch 2 and the second punch 3 move towards the inner liner of the refrigerator simultaneously to perform punching operation; the first cylinder 15 above the opening position of the original punching mold positions the opening position during punching and retraction to prevent the inner liner from deforming; and the simultaneous punching of the two punches increases the stability of the mold during punching, further ensuring that the inner liner does not deform, ensuring the accuracy of the punching position, so that the subsequent refrigerator door seal closing is more in line with the design requirements and reducing cold leakage; the waste generated by punching falls into the base waste box 6 at the bottom of the base 5 to realize waste recycling.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A punching mold for the inner liner of a refrigerator door, characterized in that: The base (5) includes a base (5), a first bracket (21) is installed on the top of the base (5), a second bracket (22) is welded to the top of the first bracket (21), a third bracket (23) is connected to the top of the second bracket (22), two sets of second cylinders (24) are provided on the outside of the third bracket (23), the output end of the second cylinder (24) is connected to the pressing assembly (4), and the bottom of the pressing assembly (4) is connected to the pressing plate (20); two sets of cylinder fixing seats (14) are provided on the top of the base (5), two sets of first cylinders (15) are provided inside the cylinder fixing seats (14), and equal height sleeves (18) are installed on the bottom of the first cylinders (15).

2. The refrigerator door inner liner punching mold according to claim 1, characterized in that: The output end of the first cylinder (15) is connected to the pneumatic rod (16), the other end of the pneumatic rod (16) is connected to the flange (12), the outside of the flange (12) is connected to the flange cover plate (13), the other end of the flange cover plate (13) is connected to the motion frame (11), the other end of the motion frame (11) is connected to the head fixing plate (10), the other end of the head fixing plate (10) is connected to the punch pressure plate (9), and the other end of the punch pressure plate (9) is equipped with a second punch (3) at its center.

3. The refrigerator door inner liner punching mold according to claim 2, characterized in that: The bottom of the motion frame (11) is slidably connected to a linear guide rail (17), which is welded to the base (5); a collision block (19) is welded to one side of the motion frame (11).

4. A punching die for a refrigerator door liner according to claim 2, characterized in that: The second punch (3) has a first punch (2) on one side, and the connecting component of the first punch (2) is the same as that of the second punch (3).

5. A punching die for a refrigerator door liner according to claim 4, characterized in that: A control box base (7) is welded to one side of the base (5), and an electrical box (8) is provided at the top of the control box base (7); a base waste box (6) is installed at the bottom of the base (5).

6. A punching die for a refrigerator door liner according to claim 1, characterized in that: The base (5) has a second positioning block (28) on its top side, a third positioning block (29) on one side of the second positioning block (28), and a fourth positioning block (30) on one side of the third positioning block (29).

7. A punching die for a refrigerator door liner according to claim 6, characterized in that: The fourth positioning block (30) has a first cavity (25) on one side, a first positioning block (27) on one side of the first cavity (25), and a second cavity (26) on one side of the first positioning block (27).

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