A display backplane stamping die

Abstract

This utility model discloses a display back panel stamping mold, including a lower mold base and a PLC control cabinet for overall operation. The upper side of the lower mold base is provided with a stamping mold groove. The upper side of the lower mold base is provided with an upper bracket, and the upper part of the upper bracket is provided with a stamping upper template through a lifting bracket and a first hydraulic cylinder. The top of the upper bracket is also provided with a punching frame through a second hydraulic cylinder, and the lower four corners of the punching frame are provided with right-angle cutters. This utility model utilizes the punching frame provided with a second hydraulic cylinder in the top of the upper bracket, and the right-angle cutters at the lower four corners of the punching frame, so that the punching frame and right-angle cutters are driven to move down by the second hydraulic cylinder, which can perform corner cutting on the four corners of the back panel that are stuck on the upper part of the stamping mold groove. Moreover, the corner cutting efficiency is high, the cutting accuracy is high, and it is also convenient to improve the efficiency of back panel stamping and folding.

Description

Technical Field

[0001] This utility model relates to the field of back panel stamping technology, specifically a display back panel stamping mold. Background Technology

[0002] Liquid crystal displays (LCDs) are widely used in various fields of social production and daily life. An LCD is a flat, ultra-thin display device, generally consisting of a display screen and a back panel. The various components supporting the display's functions are housed within the back panel. During manufacturing, the back panel requires stamping dies for stamping and folding.

[0003] A prior art display back panel stamping die with application number 202320202395.8 includes a lower die base, an upper die plate, a backing plate, and an upper die base. Multiple upper die vertical punches are mounted on the bottom end of the backing plate. The outer sliding punches move inwards, while the inner sliding punches move outwards, pressing the sheet metal into a Z-shape. After forming, the punches retract and reset. The upper die vertical punches move downwards, and the lower die punches push in to a predetermined height, pressing the Z-shaped sheet metal downwards to form a semi-finished product. Then, the upper stamping block and side stamping block of the secondary stamping die cooperate to stamp the semi-finished product. However, this method is not convenient for chamfering the four corners of the back panel, and manual chamfering is inefficient and has poor cutting accuracy, thus affecting the efficiency of subsequent stamping and folding of the back panel. Utility Model Content

[0004] The purpose of this utility model is to provide a display back panel stamping mold to solve the problem in the prior art that it is inconvenient to cut the four corners of the back panel, and that manual corner cutting is inefficient and has poor cutting accuracy, which affects the efficiency of subsequent stamping and folding of the back panel.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a display back panel stamping mold, including a lower mold base and a PLC control cabinet for overall operation. The lower mold base has a stamping mold groove inside its upper side, and an upper support is provided on the upper side of the lower mold base. The upper part of the upper support is provided with a stamping upper template through a lifting bracket and a first hydraulic cylinder. The top of the upper support is also provided with a punching frame through a second hydraulic cylinder, and right-angle cutters are provided at the four corners of the lower side of the punching frame.

[0006] Furthermore, a limiting support is provided on the outer side of the upper part of the lower mold base, and a limiting slot is provided on the inner side of each limiting support.

[0007] Furthermore, the limiting support is an L-shaped support, and multiple limiting supports are fixedly welded to the upper part of the lower mold base.

[0008] Furthermore, a punching groove is provided between the ends of the adjacent limiting supports, and the punching groove is a rectangular groove.

[0009] Furthermore, the punching frame is a rectangular frame, and guide sliders are provided on both sides of the punching frame. The guide sliders are slidably arranged with the guide rods on the inner wall of the upper support.

[0010] Furthermore, the upper support is provided with a limiting sliding hole at the top, and the lower wall of the lifting support slides through the limiting sliding hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model utilizes a punching frame located at the top of the upper bracket via a second hydraulic cylinder, and right-angle cutters are provided at the four corners of the lower side of the punching frame. This allows the punching frame and right-angle cutters to be driven downward by the second hydraulic cylinder, enabling the four corners of the back plate that is clamped to the upper part of the stamping mold groove to be cut. Moreover, the cutting efficiency is high, the cutting accuracy is high, and it is also convenient to improve the efficiency of stamping and folding the back plate.

[0013] 2. This utility model has a limiting support provided on the upper side of the lower mold base, and each limiting support has a limiting slot on its inner side. The limiting support is an L-shaped support, and multiple limiting supports are fixedly welded to the upper part of the lower mold base. This allows the limiting slots to be used to laterally clamp and limit the back panel of the display to be stamped, preventing the back panel of the display from moving during stamping. This is beneficial to improving the accuracy of the chamfering and stamping edge of the back panel of the display. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the punching frame structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the lower mold base structure of this utility model.

[0018] In the diagram: 1. Lower die base; 2. Stamping die groove; 3. Limiting slot; 4. Upper bracket; 5. Lifting bracket; 6. First hydraulic cylinder; 7. Limiting sliding hole; 8. PLC control cabinet; 9. Stamping upper template; 10. Second hydraulic cylinder; 11. Punching frame; 12. Right angle cutter; 13. Guide rod; 14. Guide slider; 15. Punching groove; 16. Limiting support. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 , Figure 2 , Figure 3 In this embodiment of the present invention, a display back panel stamping mold includes a lower mold base 1 and a PLC control cabinet 8 for overall operation. The lower mold base 1 has a stamping mold groove 2 inside its upper side and an upper support 4 on its upper side. The upper part of the upper support 4 is provided with a stamping upper template 9 through a lifting support 5 and a first hydraulic cylinder 6. The first hydraulic cylinder 6 drives the lifting support 5 and the stamping upper template 9 to move downward, pressing the back panel with the punched corner into the stamping mold groove 2, thereby achieving right-angle folding treatment of the back panel. The folding efficiency is high. The upper support 4 also has a punching frame 11 at its top through a second hydraulic cylinder 10. The punching frame 11 has right-angle cutters 12 at its four corners. The second hydraulic cylinder 10 drives the punching frame 11 and the right-angle cutters 12 to move downward, which can cut the four corners of the back panel that is stuck in the upper part of the stamping mold groove 2. The cutting efficiency is high, the cutting accuracy is high, and it is also easy to improve the efficiency of back panel stamping and folding.

[0021] like Figure 1 and Figure 3 As shown, in order to improve the accuracy of the chamfering and stamping of the display back panel, a limiting support 16 is provided on the upper outer side of the lower mold base 1, and a limiting slot 3 is provided on the inner side of the limiting support 16. The limiting support 16 is an L-shaped support, and multiple limiting supports 16 are fixedly welded to the upper part of the lower mold base 1, so that the limiting slot 3 can be used to laterally clamp and limit the display back panel to be stamped, preventing the display back panel from moving during stamping, which is beneficial to improving the accuracy of the chamfering and stamping of the display back panel.

[0022] like Figure 1 and Figure 3 As shown, in order to facilitate the discharge of the punched waste, a punching groove 15 is provided between the ends of adjacent limiting supports 16, and the punching groove 15 is a rectangular groove, which facilitates the discharge of the punched waste pieces.

[0023] like Figure 1 and Figure 2As shown, in order to improve the stability of the lifting and adjusting of the punching frame 11 and the upper stamping template 9, the punching frame 11 is also set as a rectangular frame, and guide sliders 14 are provided on both sides of the punching frame 11. The guide sliders 14 are slidably set with the guide rods 13 on the inner wall of the upper support 4. The top of the upper support 4 is provided with a limiting sliding hole 7, and the lower wall of the lifting support 5 is slidably set through the limiting sliding hole 7, which is used to slide and guide the punching frame 11 and the upper stamping template 9 during lifting and adjusting, which is beneficial to improving the stability of the lifting and adjusting of the punching frame 11 and the upper stamping template 9.

[0024] The working principle and usage process of this utility model are as follows: When in use, the display back panel to be stamped is horizontally snapped into the limiting slot 3 on the upper part of the lower mold base 1. Then, the second hydraulic cylinder 10 drives the punching frame 11 and the right-angle cutter 12 to move down, which can cut the four corners of the back panel snapped into the upper part of the stamping mold groove 2. Subsequently, the first hydraulic cylinder 6 drives the lifting bracket 5 and the upper stamping template 9 to move down, pressing the back panel with the punched corners into the stamping mold groove 2, realizing the right-angle folding treatment of the back panel, with high folding efficiency.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A display back panel stamping die, comprising a lower die base (1), characterized in that: The lower mold base (1) is provided with a stamping mold groove (2) on the upper side. The upper mold base (1) is provided with an upper support (4). The upper part of the upper support (4) is provided with a stamping upper template (9) through a lifting support (5) and a first hydraulic cylinder (6). The top of the upper support (4) is also provided with a punching frame (11) through a second hydraulic cylinder (10). The punching frame (11) is provided with right-angle cutters (12) at the four corners of the lower side of the punching frame (11).

2. The display back panel stamping die according to claim 1, characterized in that: The lower mold base (1) is provided with a limiting support (16) on the upper outer side, and the limiting support (16) is provided with a limiting slot (3) on the inner side.

3. The display back panel stamping die according to claim 2, characterized in that: The limiting support (16) is an L-shaped support, and multiple limiting supports (16) are fixedly welded to the upper part of the lower mold base (1).

4. The display back panel stamping die according to claim 3, characterized in that: A punching groove (15) is provided between the ends of the adjacent limiting supports (16), and the punching groove (15) is a rectangular groove.

5. The display back panel stamping die according to claim 1, characterized in that: The punching frame (11) is a rectangular frame, and guide sliders (14) are provided on both sides of the punching frame (11). The guide sliders (14) are slidably arranged with the guide rods (13) on the inner wall of the upper support (4).

6. The display back panel stamping die according to claim 1, characterized in that: The upper support (4) is provided with a limiting sliding hole (7) at the top, and the lower wall of the lifting support (5) slides through the limiting sliding hole (7).

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