Positioning accurate door lining punch cutting die

Abstract

The utility model discloses a positioning accurate type door lining punch -cut die relates to mould technical field, this positioning accurate type door lining punch -cut die, including upper die holder and lower die holder, upper die holder and lower die holder all are along horizontal direction and set, the bottom fixedly connected with guide sleeve of upper die holder, the surface fixedly connected with guide pillar of lower die holder, the surface of guide pillar and the inner wall sliding connection of guide sleeve, be provided with the trimming mechanism between upper die holder and lower die holder, the trimming mechanism includes the placement platform fixedly connected in the surface of lower die holder, the top fixedly connected with the door lining frame of placement platform inside intercommunication of placement platform. This positioning accurate type door lining punch -cut die, when using, only need to put the door lining on the door lining frame, and then in the process of die operation, can automatically position the door lining to the precision of the flash cutting is guaranteed, and the staff is facilitated to place the door lining, improves the trimming efficiency and quality of die to the door lining.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a precision-positioning door liner punching mold. Background Technology

[0002] In the preparation process of refrigerator door liners, it is necessary to use a mold to trim the edges to remove the burrs and ensure the quality of the door liner production.

[0003] However, when using existing door liner trimming dies, the size of the protruding core on the die is slightly smaller than the inner wall of the door liner to facilitate the installation of the door liner. As a result, when the door liner is placed on the protruding core, there is still a certain gap between the protruding core and the door liner. It is impossible to ensure that the center of the door liner and the protruding core are on the same vertical line. This leads to uneven trimming of the door liner during subsequent trimming, which reduces the processing quality of the door liner. Therefore, a door liner punching die with precise positioning is proposed. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a door liner punching die with precise positioning, which can solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision-positioning door liner punching die, comprising an upper die base and a lower die base, both of which are arranged in a horizontal direction. A guide sleeve is fixedly connected to the bottom of the upper die base, and a guide post is fixedly connected to the surface of the lower die base. The surface of the guide post is slidably connected to the inner wall of the guide sleeve. A cutting mechanism is provided between the upper die base and the lower die base.

[0006] The trimming mechanism includes a placement platform fixedly connected to the surface of the lower mold base. A door liner frame communicating with the interior of the placement platform is fixedly connected to the top of the placement platform. The door liner frame can fit into the inner frame of the door liner. A trimming frame is fixedly connected to the upper mold base. A cutter is fixedly connected to the bottom of the trimming frame. The inner wall of the trimming frame fits into the outer frame of the door liner.

[0007] Preferably, each of the four sides of the door frame is slidably connected to a push plate that penetrates the surface of the door frame. Each push plate is fixedly connected to an extrusion rod at one end inside the door frame. The placement platform is provided with a conical lifting platform inside. The end of the extrusion rod near the lifting platform is hemispherical and in contact with the surface of the lifting platform.

[0008] Preferably, a third spring is movably sleeved on the surface of the extrusion rod, and the two ends of the third spring are fixedly connected to the inner wall of the door frame and the surface of the extrusion rod, respectively.

[0009] Preferably, the bottom of the lifting platform is fixedly connected to two guide plates, and the inner wall of the placement platform is fixedly connected to two fixing rods. The two fixing rods pass through the surface of the two guide plates and are slidably connected to the inside of the two guide plates.

[0010] Preferably, a threaded rod is rotatably connected between the placement platform and the door frame, and the threaded rod passes through the surface of the lifting platform and is threadedly connected to the inside of the lifting platform.

[0011] Preferably, mounting seats are fixedly connected to both sides of the lower die base surface, and a first spring is fixedly connected inside each of the two extrusion blocks. The end of the first spring away from the moving block is fixedly connected to the inside of the mounting seat. An extrusion block is fixedly connected to the bottom of the upper die base. The lower end of the extrusion block is in contact with the inclined surface of the moving block, and a ball bearing is embedded in the lower end of the extrusion block.

[0012] Preferably, a protruding plate is fixedly connected to the side of the movable block near the placement platform, the surface of the protruding plate is slidably connected to the interior of the placement platform, a rack is fixedly connected to the surface of the protruding plate inside the placement platform, the surface of the rack is slidably connected to the interior of the placement platform, and a gear is fixedly connected to the surface of the threaded rod, the surface of the gear meshing with the surface of the rack.

[0013] Preferably, a second spring is fixedly connected to the end of the rack away from the convex plate, and the end of the second spring away from the rack is fixedly connected to the interior of the placement platform.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This precision-positioning door liner punching die only requires placing the door liner on the door liner frame during use. Then, during the die's operation, it can automatically position the door liner, thus ensuring the accuracy of the burr cutting. This makes it easier for workers to place the door liner, improves the die's cutting efficiency and quality, and enhances the device's effectiveness. It is worthy of promotion. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a structural schematic diagram of a precision-positioning door liner punching die according to the present invention;

[0018] Figure 2 This is a schematic diagram of the surface structure of the placement platform of this utility model;

[0019] Figure 3 This is a cross-sectional view of the movable block of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the placement platform of this utility model.

[0021] Reference numerals in the attached drawings: 1. Upper mold base; 2. Guide sleeve; 3. Guide post; 4. Lower mold base; 5. Placement platform; 6. Mounting base; 7. Extrusion block; 8. Protruding plate; 9. Door frame; 10. Push plate; 11. Cutting edge; 12. Moving block; 13. First spring; 14. Rack; 15. Extrusion rod; 16. Second spring; 17. Gear; 18. Threaded rod; 19. Lifting platform; 20. Guide plate; 21. Fixed rod; 22. Third spring. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a precision-positioning door liner punching die, including an upper die base 1 and a lower die base 4. Both the upper die base 1 and the lower die base 4 are arranged in the horizontal direction. The lower die base 4 can be fixed on the frame or the working plane. The upper die base 1 is movably arranged in the vertical direction relative to the lower die base 4. A drive source is provided on the frame. The drive source is set as a linear drive source. The drive source is used to drive the upper die base 1 to move in the vertical direction.

[0024] A trimming mechanism is provided between the upper mold base 1 and the lower mold base 4. The trimming mechanism includes a placement platform 5 fixedly connected to the surface of the lower mold base 4. A door liner frame 9 connected to the inside of the placement platform 5 is fixedly connected to the top of the placement platform 5. The door liner frame 9 can match the inner frame of the door liner for initial positioning and installation. A trimming frame 11 is fixedly connected to the upper mold base 1. A cutter is fixedly connected to the bottom of the trimming frame 11 for trimming the door liner. The inner wall of the trimming frame 11 matches the outer frame of the door liner, so that the trimming frame 11 and the door liner frame 9 cooperate with each other to wrap the door liner.

[0025] Push plates 10 are slidably connected to all four sides of the door frame 9, penetrating the surface of the door frame 9. Each push plate 10 is fixedly connected to a pressing rod 15 at one end inside the door frame 9. The placement platform 5 is provided with a conical lifting platform 19. The end of the pressing rod 15 near the lifting platform 19 is hemispherical and in contact with the surface of the lifting platform 19. A third spring 22 is movably sleeved on the surface of the pressing rod 15. The two ends of the third spring 22 are fixedly connected to the inner wall of the door frame 9 and the surface of the pressing rod 15, respectively, to reset the push plate 10 and the pressing rod 15.

[0026] Two guide plates 20 are fixedly connected to the bottom of the lifting platform 19, and two fixing rods 21 are fixedly connected to the inner wall of the placement platform 5. The two fixing rods 21 pass through the surface of the two guide plates 20 and are slidably connected to the inside of the two guide plates 20, so as to guide the movement of the lifting platform 19 and restrict the movement trajectory of the lifting platform 19, so that the lifting platform 19 can only move vertically between the placement platform 5 and the door frame 9, thus ensuring the operation of the device.

[0027] A threaded rod 18 is rotatably connected between the placement platform 5 and the door frame 9. The threaded rod 18 passes through the surface of the lifting platform 19 and is threadedly connected to the inside of the lifting platform 19 to drive the lifting platform 19 to move up and down between the placement platform 5 and the door frame 9. Mounting seats 6 are fixedly connected to both sides of the surface of the lower mold base 4. A first spring 13 is fixedly connected to the inside of each of the two extrusion blocks 7. The end of the first spring 13 away from the moving block 12 is fixedly connected to the inside of the mounting seat 6 to reset the moving block 12.

[0028] An extrusion block 7 is fixedly connected to the bottom of the upper mold base 1. The lower end of the extrusion block 7 contacts the inclined surface of the moving block 12, and a ball is embedded in the lower end of the extrusion block 7. The ball reduces the friction between the lower end of the extrusion block 7 and the inclined surface of the moving block 12, thereby improving the smoothness of the device operation.

[0029] A protruding plate 8 is fixedly connected to the side of the movable block 12 near the placement platform 5. The surface of the protruding plate 8 is slidably connected to the interior of the placement platform 5. A rack 14 is fixedly connected to the surface of the protruding plate 8 inside the placement platform 5. The surface of the rack 14 is slidably connected to the interior of the placement platform 5. A gear 17 is fixedly connected to the surface of the threaded rod 18. The surface of the gear 17 meshes with the surface of the rack 14, so that when the protruding plate 8 moves closer to the interior of the placement platform 5, it can drive the threaded rod 18 to rotate.

[0030] The end of the rack 14 away from the convex plate 8 is fixedly connected to the second spring 16, and the end of the second spring 16 away from the rack 14 is fixedly connected to the interior of the placement platform 5 to reset the convex plate 8 and the rack 14.

[0031] The bottom of the upper mold base 1 is fixedly connected to a guide sleeve 2, and the surface of the lower mold base 4 is fixedly connected to a guide post 3. The surface of the guide post 3 is slidably connected to the inner wall of the guide sleeve 2. Thus, the movement of the upper mold base 1 can be guided by the guide sleeve 2 and the guide post 3, ensuring the smooth operation of the device.

[0032] Working principle:

[0033] When trimming the door liner, the door liner is first fitted onto the door liner frame 9. Then, the upper mold base 1 is driven to descend, which in turn causes the extrusion block 7 to descend. This causes the lower end of the extrusion block 7 to press against the inclined surface of the moving block 12, pushing the moving block 12 closer to the placement platform 5. This causes the protrusion plate 8 to gradually extend into the placement platform 5. Through the meshing of the rack 14 and gear 17, the threaded rod 18 is driven to rotate, causing the lifting platform 19 to slide and rise between the placement platform 5 and the door liner frame 9. This compresses the extrusion rod 15 and the first spring 13, causing the inclined surface of the lifting platform 19 to press and push the hemispherical end of the extrusion rod 15 and stretch the third spring 22. This causes the push plate 10 to move outward and contact the inner wall of the door liner, thereby driving the adjustment of the position of the door liner on the door liner frame 9 so that the center point of the door liner and the center point of the door liner frame 9 are on the same straight line, thus achieving precise installation of the door liner frame 9. Then, as the upper mold base 1 continues to move... The upper die 1 descends, causing the extrusion block 7 to separate from the inclined surface of the moving block 12, and the extrusion block 7 to contact the vertical edge of the moving block 12. As the upper die 1 continues to descend, the cutting edge 11 wraps around the outer surface of the door liner, and the cutter at the bottom of the cutting edge 11 cuts off the burrs of the door liner. After cutting, the upper die 1 rises, thereby driving the extrusion block 7 to rise, causing the extrusion block 7 to separate from the moving block 12. At this time, under the elastic force of the first spring 13, the second spring 16 and the third spring 22, the device returns to its original state, and then the door liner and the cut burrs can be taken out. Then another door liner can be placed for operation. Thus, when using the device, you only need to put the door liner on the door liner frame 9, and then the door liner can be automatically positioned during the operation of the die, thereby ensuring the accuracy of burr cutting, facilitating the placement of the door liner by the staff, improving the cutting efficiency of the die on the door liner, and improving the use effect of the device, which is worth promoting.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A positioning-precision door lining punch-cutting die comprising an upper die seat (1) and a lower die seat (4), characterized in that: The upper mold base (1) and the lower mold base (4) are both arranged in the horizontal direction. The bottom of the upper mold base (1) is fixedly connected to a guide sleeve (2), and the surface of the lower mold base (4) is fixedly connected to a guide post (3). The surface of the guide post (3) is slidably connected to the inner wall of the guide sleeve (2). A trimming mechanism is provided between the upper mold base (1) and the lower mold base (4). The trimming mechanism includes a placement platform (5) fixedly connected to the surface of the lower mold base (4). A door liner frame (9) communicating with the interior of the placement platform (5) is fixedly connected to the top of the placement platform (5). The door liner frame (9) can match the inner frame of the door liner. A trimming frame (11) is fixedly connected to the upper mold base (1). A cutter is fixedly connected to the bottom of the trimming frame (11). The inner wall of the trimming frame (11) matches the outer frame of the door liner.

2. The positioning precision door lining punch-cutting die according to claim 1, characterized in that: The door frame (9) is slidably connected to four sides by push plates (10) that penetrate the surface of the door frame (9). Each push plate (10) is fixedly connected to an extrusion rod (15) at one end inside the door frame (9). The placement platform (5) is provided with a conical lifting platform (19). The end of the extrusion rod (15) near the lifting platform (19) is hemispherical and in contact with the surface of the lifting platform (19).

3. The precision positioning door liner punch and die assembly of claim 2 wherein: A third spring (22) is movably sleeved on the surface of the extrusion rod (15), and the two ends of the third spring (22) are fixedly connected to the inner wall of the door frame (9) and the surface of the extrusion rod (15), respectively.

4. The precision positioning door liner punch and die assembly of claim 3 wherein: The bottom of the lifting platform (19) is fixedly connected to two guide plates (20), and the inner wall of the placement platform (5) is fixedly connected to two fixing rods (21). The two fixing rods (21) pass through the surface of the two guide plates (20) and slide in connection with the interior of the two guide plates (20).

5. The precision positioning door liner punch and die assembly of claim 4 wherein: A threaded rod (18) is rotatably connected between the placement platform (5) and the door frame (9). The threaded rod (18) passes through the surface of the lifting platform (19) and is threadedly connected to the inside of the lifting platform (19).

6. A positioning precision door lining punch-cutting die according to claim 5, characterized in that: Mounting seats (6) are fixedly connected to both sides of the surface of the lower die base (4). A first spring (13) is fixedly connected inside the two extrusion blocks (7). The end of the first spring (13) away from the moving block (12) is fixedly connected to the interior of the mounting seat (6). An extrusion block (7) is fixedly connected to the bottom of the upper die base (1). The lower end of the extrusion block (7) is in contact with the inclined surface of the moving block (12), and a ball bearing is embedded in the lower end of the extrusion block (7).

7. A positioning precision door lining punch-cutting die according to claim 6, characterized in that: The movable block (12) is fixedly connected to a protruding plate (8) on the side near the placement platform (5). The surface of the protruding plate (8) is slidably connected to the interior of the placement platform (5). A rack (14) is fixedly connected to the surface of the protruding plate (8) inside the placement platform (5). The surface of the rack (14) is slidably connected to the interior of the placement platform (5). A gear (17) is fixedly connected to the surface of the threaded rod (18). The surface of the gear (17) meshes with the surface of the rack (14).

8. The precision positioning door liner punch and die assembly of claim 7 wherein: The rack (14) is fixedly connected with the second spring (16) at one end away from the convex plate (8), and the second spring (16) is fixedly connected with the inside of the placement table (5) at one end away from the rack (14).

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