Punching die for refrigerator door lining

Abstract

The utility model belongs to the technical field of refrigerators, and particularly relates to a refrigerator door lining punching die which comprises an upper die and a lower die, the upper die and the lower die can be opened and closed, a positioning assembly used for positioning a door lining is arranged on the upper end face of the lower die according to the shape of the door lining, and a dead knife is further arranged on the lower die. A plurality of dead knives are arranged on the lower die, the dead knives are connected end to end to form a rectangular structure in a surrounding mode, the upper die is provided with top knives which are matched with the dead knives to conduct edge cutting on the door lining, and a side portion punching mechanism is arranged on the side portion of the upper die and used for punching the side edge of the door lining. Then the oil cylinder is started to drive the upper die to move downwards, after the upper die and the lower die are closed, redundant waste on the edge of the door lining is cut off through cooperation of the top cutter and the bottom cutter, then the side edge of the door lining is punched through the side punching mechanism, the door lining meets the installation requirement, operation is convenient, and the door lining machining efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a refrigerator door lining punching die. Background Art

[0002] A refrigerator comprises a main body with storage spaces for a freezer and a refrigerator, and a door disposed in front of the main body to open and close the storage spaces. The refrigerator door comprises an outer shell, an insulation layer, and a door lining. Conventional door linings, after being formed, first require a trimming device to trim the waste material from their edges. To facilitate installation of the door lining, a punching device also requires punching holes at corresponding locations in the door lining. Trimming and punching require two positioning steps, resulting in low processing efficiency. The present invention provides a refrigerator door lining punching die that can accurately trim and punch the refrigerator door lining with a single positioning step. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the prior art, the utility model provides a refrigerator door lining punching die.

[0004] A refrigerator door liner punching die comprises an upper die and a lower die, the upper and lower dies being able to open and close, the upper end face of the lower die being provided with a positioning assembly for positioning the door liner according to the shape of the door liner, the lower die being further provided with a bottom knife, a plurality of the bottom knives being connected end to end to form a rectangular structure, the upper die being provided with a top knife for cooperating with the bottom knife to trim the door liner, the side of the upper die being provided with a side punching mechanism for punching the side of the door liner.

[0005] Furthermore, the positioning assembly includes a simulated part installed in the positioning groove of the lower mold, and the simulated part cooperates with the protruding mounting portion of the lining edge. A positioning seat corresponding to the raised portion of the door lining is also provided in the positioning groove.

[0006] Furthermore, the lower die includes a support frame installed on the top plate, and the top knife is installed on the lower end surface of the support frame.

[0007] Furthermore, the support frame is connected to the fixed seat through a spring, the fixed seat is provided with a guide column, the guide column is slidably connected to the support frame, the support frame is provided with a top punching needle, and the fixed seat is provided with a through hole allowing the top punching needle to pass through.

[0008] Furthermore, the side punching mechanism includes a fixing frame installed on the top plate, a telescopic cylinder is installed on the fixing frame, the output end of the telescopic cylinder is connected to a side punching column, and the side punching column passes through the top knife to punch the side of the raised part.

[0009] Furthermore, a positioning screw is provided on the support frame, and the bottom of the positioning screw is connected to the pressure column.

[0010] Furthermore, a material receiving rack is provided on the outer side of the bottom knife.

[0011] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is as follows: the lower mold in the utility model is fixedly installed on the workbench, the upper mold is connected to the output end of the cylinder, and the opening and closing between the upper mold and the lower mold are realized by the cylinder. The staff first installs the door lining on the lower mold through the positioning assembly, and then starts the cylinder to drive the upper mold to move downward. When the upper mold and the lower mold are closed, the excess waste on the edge of the door lining is cut off by the cooperation of the top knife and the bottom knife, and then the side of the door lining is punched by the side punching mechanism, so that the door lining meets the installation needs, the operation is convenient, and the door lining processing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a refrigerator door lining punching die of the utility model;

[0013] Figure 2 This is a bottom view of the upper die in the utility model;

[0014] Figure 3 This is a schematic diagram of the partial structure of the upper die in the utility model;

[0015] Figure 4 It is a partial bottom view of the upper die in the utility model;

[0016] Figure 5 For this utility model Figure 4 Schematic diagram of the cross-sectional structure in the AA direction;

[0017] Figure 6 This is a schematic structural diagram of the side punching mechanism of the present invention;

[0018] Figure 7 This is a schematic structural diagram of the lower mold in the utility model;

[0019] Figure 8 It is a top view of the lower mold of the utility model;

[0020] Figure 9 This is a schematic diagram of the partial structure of the lower mold of the utility model;

[0021] Figure 10 It is a structural schematic diagram of the door lining of the present invention.

[0022] In the figure, 1, upper die, 2, lower die, 3, bottom knife, 4, top knife, 5, positioning groove, 6, simulated part, 7, positioning seat, 8, fixing seat, 9, top punching needle, 10, support frame, 11, spring, 12, fixing frame, 13, guide column, 14, through hole, 15, mounting frame, 16, telescopic cylinder, 17, side punching column, 18, positioning screw, 19, pressure column, 20, lining, 201, mounting part, 202, raised part, 21, material receiving frame. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on these drawings and embodiments, which all fall within the scope of protection of the present invention.

[0024] according to Figure 1-10 As shown, a refrigerator door lining punching mold includes an upper mold 1 and a lower mold 2. The upper mold 1 and the lower mold 2 can be opened and closed. The upper end surface of the lower mold 2 is provided with a positioning component for positioning the door lining according to the shape of the door lining. The lower mold 2 is also provided with a bottom knife 3. Several bottom knives 3 are connected end to end to form a rectangular structure. The upper mold 1 is provided with a top knife 4 that cooperates with the bottom knife 3 to trim the door lining. The side of the upper mold 1 is provided with a side punching mechanism for punching the side of the door lining.

[0025] In the above specific technical scheme, the lower mold 2 is fixedly installed on the workbench, the upper mold 1 is connected to the output end of the cylinder, and the opening and closing between the upper mold 1 and the lower mold 2 are realized by the cylinder. The staff first installs the door lining on the lower mold 2 through the positioning assembly, and then starts the cylinder to drive the upper mold 1 to move downward. After the upper mold 1 and the lower mold 2 are closed, the excess waste on the edge of the door lining is cut off by the cooperation of the top knife 4 and the bottom knife 3, and then the side of the door lining is punched by the side punching mechanism, so that the door lining meets the installation requirements, is easy to operate, and has high door lining processing efficiency.

[0026] Preferably, two sets of matching lining 20 processing mechanisms are installed on the upper mold 1 and the lower mold 2, which effectively improves the efficiency of door lining processing.

[0027] The positioning assembly includes a simulated part 6 installed in the positioning groove 5 of the lower mold 2. The simulated part 6 cooperates with the protruding mounting portion 201 on the edge of the lining 20. A positioning seat 7 corresponding to the raised portion 202 of the door lining is also provided in the positioning groove 5.

[0028] The dummy piece 6 and the positioning seat 7 are adapted to the shape of the door lining, and the door lining is accurately mounted on the lower die 2 by the dummy piece 6 and the positioning seat 7, thereby ensuring the accuracy of punching and trimming.

[0029] The lower die 2 includes a support frame 10 installed on a top plate, and the top knife 4 is installed on the lower end surface of the support frame 10 .

[0030] The support frame 10 is connected to the fixed seat 8 through a spring 11. The fixed seat 8 is provided with a guide column 13. The guide column 13 is slidably connected to the support frame 10. The support frame 10 is provided with a top punching needle 9. The fixed seat 8 is provided with a through hole 14 for allowing the top punching needle 9 to pass through.

[0031] When the above specific technology is installed, when the upper mold 1 and the lower mold 2 are closed, not only the trimming of the lining 20 is achieved, but also the lining 20 is punched from top to bottom, so that the lining 20 meets the processing requirements, and the spring 11 can play a buffering role.

[0032] The side punching mechanism includes a fixing frame 12 mounted on the top plate, a telescopic cylinder 16 mounted on the fixing frame 12, and a side punching column 17 connected to the output end of the telescopic cylinder 16. The side punching column 17 passes through the top knife 4 to punch the side of the raised portion 202. When the upper mold 1 and the lower mold 2 are closed, the telescopic cylinder 16 is started to drive the side punching column 17 to punch the side of the liner 20. Preferably, the side punching mechanism is provided in the required number according to the processing requirements of the liner 20, wherein the shape of the side punching column 17 is adapted to the shape of the hole to be punched in the liner 20.

[0033] The support frame 10 is provided with a positioning screw 18, the bottom of which is connected to a pressure column 19. When the upper mold 1 and the lower mold 2 are closed, the pressure column 19 presses on the top of the liner 20 from top to bottom, which can play a role in positioning when punching the liner 20.

[0034] A material receiving rack 21 is provided on the outer side of the bottom knife 3, and the waste materials cut off from the edge of the liner 20 fall onto the material receiving rack 21, making it convenient for staff to clean up.

[0035] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A refrigerator door lining punching die, comprising an upper die (1) and a lower die (2), characterized in that: The upper die (1) and the lower die (2) can be opened and closed. The upper end surface of the lower die (2) is provided with a positioning assembly for positioning the door lining according to the shape of the door lining. The lower die (2) is also provided with a bottom knife (3). Several bottom knives (3) are connected end to end to form a rectangular structure. The upper die (1) is provided with a top knife (4) for cooperating with the bottom knife (3) to trim the door lining. The side of the upper die (1) is provided with a side punching mechanism for punching the side of the door lining. The positioning assembly comprises a simulated part (6) installed in the positioning groove (5) of the lower mold (2), the simulated part (6) cooperates with the protruding mounting portion (201) of the edge of the lining (20), and a positioning seat (7) corresponding to the raised portion (202) of the door lining is also provided in the positioning groove (5).

2. A refrigerator door lining punching die according to claim 1, characterized in that: The lower die (2) comprises a support frame (10) mounted on a top plate, and the top knife (4) is mounted on the lower end surface of the support frame (10).

3. A refrigerator door lining punching die according to claim 2, characterized in that: The support frame (10) is connected to the fixing seat (8) via a spring (11); the fixing seat (8) is provided with a guide column (13); the guide column (13) is slidably connected to the support frame (10); the support frame (10) is provided with a top punching needle (9); and the fixing seat (8) is provided with a through hole (14) for allowing the top punching needle (9) to pass through.

4. A refrigerator door lining punching die according to claim 1, characterized in that: The side punching mechanism comprises a fixing frame (12) mounted on the top plate, a telescopic cylinder (16) mounted on the fixing frame (12), an output end of the telescopic cylinder (16) being cooperatively connected to a side punching column (17), and the side punching column (17) passing through the top knife (4) to punch the side of the raised portion (202).

5. The refrigerator door lining punching die according to claim 3, characterized in that: A positioning screw (18) is provided on the support frame (10), and the bottom of the positioning screw (18) is connected to a pressure column (19).

6. The refrigerator door lining punching die according to claim 1, characterized in that: A material receiving frame (21) is provided on the outer side of the bottom knife (3).

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