A precision scraping and stamping die for a flat panel backlight
By designing a precise scraping and stamping die, the elastic clamping and fixing of the backlight panel and the adjustment of the punch position were achieved, solving the problem of poor adaptability of existing dies and improving the dimensional consistency and production efficiency of the products.
Patent Information
- Application Number
- CN202522704261.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-21
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-21
AI Technical Summary
Existing backlight panel stamping dies have poor adaptability, low pass rate, and are prone to inconsistent scraping due to insecure fixing, which increases production costs and makes it difficult to achieve micron-level dimensional control.
A mold was designed that includes an upper template, a lower template, a guide rod, a guide post, a lower module, a scraping and punching mechanism, and a limiting mechanism. By elastically pressing and fixing the backlight plate, the precise adjustment of the punch position and the positioning of the limiting plate are achieved, ensuring that the scraping length is consistent each time.
It improves the dimensional uniformity of backlight panel processing, reduces human error, simplifies the positioning process, and increases product qualification rate and production efficiency.
Smart Images
Figure CN224938678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of backlight panel technology, specifically a precision scraping and stamping mold for flat backlight panels. Background Technology
[0002] As one of the core components of LCD display devices, the surface flatness, edge precision and dimensional consistency of the backlight panel directly affect the display effect and assembly compatibility. As display technology develops towards higher resolution and thinner profiles, the requirements for the processing precision of the backlight panel are becoming increasingly stringent, especially in the scraping and stamping process, where micron-level dimensional control is required. Existing backlight panel stamping dies have many technical defects. The punch positions are mostly fixed, which cannot be flexibly adjusted according to the scraping thickness requirements of different backlight panel specifications. The adaptability is poor, requiring the replacement of the entire set of mold components, which increases production costs. The reliance on manual positioning of the backlight panel leads to inconsistent scraping lengths in the same batch of products, resulting in a low pass rate. The poor coordination between stamping and fixing actions makes it easy for scraping to occur when the panel is not securely fixed, further aggravating product defects. Utility Model Content
[0003] The purpose of this utility model is to provide a precision scraping and stamping die for flat panel backlights, so as to solve the problems of poor adaptability, low pass rate, and easy occurrence of scraping without firm fixation in the existing technology, which further aggravates product defects.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a precision scraping and stamping die for a flat panel backlight, comprising: Upper template and lower template; Guide rods are fixedly installed at the four corners of the bottom end of the upper template; Guide posts are fixedly installed at the four top corners of the lower template, and the guide rods are adapted to be inserted into the guide posts; The lower module is fixedly installed at the top of the lower template; A scraping and punching mechanism is located at the bottom end of the upper template; A limiting mechanism is located on the inner side of the guide post.
[0005] Preferably, the scraping and punching mechanism includes: a fixed cover, which is fixedly installed on one side of the bottom end of the upper template; multi-stage telescopic tubes are fixedly installed on both the left and right sides of the top of the inner cavity of the fixed cover; a pressure plate is fixedly installed at the bottom end of the multi-stage telescopic tubes; a spring is adapted to be connected to the outer wall of the multi-stage telescopic tubes, and the spring is fixedly installed between the fixed cover and the pressure plate.
[0006] Preferably, the pressure plate is located directly above the lower module.
[0007] Preferably, the scraping and punching mechanism further includes: a fixing plate, which is fixedly disposed on the other side of the bottom end of the upper template; the bottom end of the fixing plate has slots on both the front and rear sides along the left and right directions, and the bolt is inserted into the slots; the punch is inserted into the bottom end of the bolt; the nut is screwed into the outer wall of the bolt, and the nut locks the punch under the fixing plate.
[0008] Preferably, one side of the inner cavity of the slot is through-hole.
[0009] Preferably, the limiting mechanism includes: a horizontal plate, which is fixedly disposed between two guide posts on one side; an adjusting bolt is screwed to one side of the horizontal plate; a limiting plate is rotatably connected to one end of the adjusting bolt through a bearing; limiting rods are inserted into both the front and rear sides of the horizontal plate, and one end of the limiting rod is fixedly disposed on one side of the limiting plate.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This precision scraping and stamping die for a flat backlight panel, through the setting of a scraping and stamping mechanism, can achieve elastic pressing and fixing of the backlight panel by the pressure plate, which not only avoids the deformation of the panel caused by rigid clamping, but also effectively prevents the backlight panel from shifting during the stamping process. By adjusting the position of the punch, the scraping thickness can be precisely adjusted to meet the processing requirements of backlight panels of different specifications. By setting a limiting mechanism, the position of the limiting plate can be adjusted and fixed, and the placement position of the backlight panel can be precisely set to ensure that the scraping length is consistent each time, effectively improving the dimensional uniformity of the same batch of products. At the same time, the fit-fitting positioning of the limiting plate and the backlight panel simplifies the manual operation process and reduces positioning errors. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the image; Figure 3 This is a left sectional view of the fixing plate of this utility model; Figure 4 This is a schematic diagram of the assembly structure of the pressure plate of this utility model.
[0012] In the diagram: 1. Upper template, 2. Lower template, 3. Guide rod, 4. Guide column, 5. Lower module, 6. Scraping and punching mechanism, 61. Fixing cover, 62. Multi-stage telescopic tube, 63. Pressure plate, 64. Spring, 65. Fixing plate, 66. Bolt, 67. Slot, 68. Punch, 69. Nut, 7. Limiting mechanism, 71. Horizontal plate, 72. Adjusting bolt, 73. Limiting plate, 74. Limiting rod. Detailed Implementation
[0013] 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.
[0014] Please see Figures 1-4 This utility model provides a technical solution: a precision scraping and stamping mold for a flat panel backlight, comprising: an upper template 1, a lower template 2, a guide rod 3, a guide post 4, a lower module 5, a scraping and stamping mechanism 6, and a limiting mechanism 7; Guide rods 3 are fixedly installed at the four corners of the bottom of the upper template 1, and guide posts 4 are fixedly installed at the four corners of the top of the lower template 2. The guide rods 3 and guide posts 4 are adapted to be inserted into each other. The cooperation of guide rods 3 and guide posts 4 enables the upper template 1 and the lower template 2 to be accurately closed. The lower module 5 is fixedly installed at the top of the lower template 2. The scraping and punching mechanism 6 is installed at the bottom of the upper template 1, and the limiting mechanism 7 is installed inside the guide post 4.
[0015] As a preferred embodiment, the scraping and punching mechanism 6 further includes: a fixed cover 61, a multi-stage telescopic tube 62, a pressure plate 63, a spring 64, a fixed plate 65, a bolt 66, a slot 67, a punch 68, and a nut 69. In order to fix the position of the backlight panel above the lower module 5 before stamping, the fixing cover 61 is fixedly installed on one side of the bottom end of the upper template 1. Multi-stage telescopic tubes 62 are fixedly installed on both the left and right sides of the top of the inner cavity of the fixing cover 61. The pressure plate 63 is fixedly installed at the bottom end of the multi-stage telescopic tubes 62. The multi-stage telescopic tubes 62 are existing technology and can extend and retract in the vertical direction to limit the pressure plate 63. The spring 64 is adapted to be connected to the outer wall of the multi-stage telescopic tubes 62 and is fixedly installed between the fixing cover 61 and the pressure plate 63. When the pressure plate 63 contacts the backlight panel above the lower module 5, the pressure plate 63 is pressed and fixed above the backlight panel of the lower module 5 by compressing the spring 64.
[0016] As a preferred embodiment, the pressure plate 63 is positioned directly above the lower module 5 so that it accurately fixes the backlight panel of the lower module 5.
[0017] In order to move and fix the punch 68, the fixing plate 65 is fixedly set on the other side of the bottom end of the upper template 1. The bottom end of the fixing plate 65 has slots 67 on both the front and rear sides along the left and right directions. The bolt 66 is inserted into the slots 67, the punch 68 is inserted into the bottom end of the bolt 66, and the nut 69 is screwed into the outer wall of the bolt 66. The nut 69 locks the punch 68 under the fixing plate 65. The cutting thickness of the backlight plate can be adjusted by adjusting the position of the punch 68. The height of the pressure plate 63 is lower than the lower surface of the punch 68.
[0018] As a preferred embodiment, the inner cavity of the slot 67 is further designed to be through-hole so that the bolt 66 can be removed from one side of the slot 67.
[0019] As a preferred embodiment, the limiting mechanism 7 further includes: a horizontal plate 71, an adjusting bolt 72, a limiting plate 73, and a limiting rod 74; In order to limit the stamping and scraping length of the horizontal plate 71, the horizontal plate 71 is fixedly installed between two guide posts 4 on one side. The adjusting bolt 72 is screwed to one side of the horizontal plate 71. The limiting plate 73 is rotatably connected to one end of the adjusting bolt 72 through a bearing. Limiting rods 74 are inserted into both the front and rear sides of the horizontal plate 71, and one end of the limiting rod 74 is fixedly installed on one side of the limiting plate 73. The backlight plate can press against one side of the limiting plate 73 each time to fix the stamping and scraping length of the backlight plate, which is convenient for precise positioning.
[0020] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.
[0021] Step 1: Install the upper template 1 and lower template 2 on the mold-using equipment. According to the preset scraping length of the backlight panel to be processed, rotate the adjusting bolt 72 in the limiting mechanism. Utilize the screw connection between the adjusting bolt 72 and the horizontal plate 71 to drive the limiting plate 73 to move smoothly along the limiting rod 74 until the limiting plate 73 reaches the preset position, thus completing the positioning of the scraping length. The limiting rod 74 can effectively prevent the limiting plate 73 from shifting, ensuring positioning accuracy. According to the scraping thickness requirement of the backlight panel, loosen the nut 69 and move the bolt 66 left and right along the slot 67 of the fixed plate 65. The bolt 66 drives the punch 68 to adjust its position synchronously. After the punch 68 reaches the preset position, tighten the nut 69 to lock and fix the punch 68 under the fixed plate 65, thus completing the setting of the scraping thickness. Step 2: Place the backlight panel to be processed on the top of the lower module 5, and push the backlight panel so that one side of it is tightly attached to the limiting plate 73. The limiting plate 73 blocks the backlight panel to achieve initial positioning, ensuring that the scraping starting position is consistent for each processing. Step 3: Start the equipment to drive the upper template 1 to move downwards. The guide rod 3 at the bottom of the upper template 1 and the guide post 4 at the top of the lower template 2 are precisely inserted to provide rigid guidance for the movement of the upper template 1, ensuring that the upper template 1 and the lower template 2 are closed along the preset trajectory and avoiding deviation. During the continuous downward movement of the upper template 1, the pressure plate 63 of the scraping and punching mechanism first contacts the upper surface of the backlight plate. As the upper template 1 continues to move downwards, the multi-stage telescopic tube 62 is compressed, and the spring 64 is elastic due to the compression of the pressure plate 63 and the fixed cover 61. Deformation, utilizing the elastic restoring force of spring 64, pressure plate 63 applies uniform and continuous clamping force to the backlight panel, firmly fixing the backlight panel on the lower module 5, preventing displacement or deformation during the stamping process. The upper template 1 continues to descend to the preset stroke, and punch 68 contacts the backlight panel and completes the scraping and stamping operation. During this process, the cooperation of guide rod 3 and guide post 4 ensures mold closing accuracy, limit plate 73 limits the scraping length, and the preset position of punch 68 ensures the scraping thickness. The three work together to achieve precise scraping of the backlight panel. Step 4: After the scraping and stamping are completed, the upper template 1 of the equipment is driven to reset upward, the guide rod 3 is pulled out from the guide post 4, and the pressure plate 63 moves upward under the elastic restoring force of the spring 64, releasing the pressure and fixation on the backlight panel. At this time, the processed backlight panel can be directly taken out, completing one complete scraping and stamping cycle.
[0022] 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 precision scraping and stamping die for a flat panel backlight, characterized in that, include: Upper template (1) and lower template (2); Guide rod (3), and guide rods (3) are fixedly installed at the four corners of the bottom end of the upper template (1); The guide post (4) is fixedly installed at the top four corners of the lower template (2), and the guide rod (3) is adapted to be inserted into the guide post (4); The lower module (5) is fixedly installed at the top of the lower template (2); The scraping and stamping mechanism (6) is located at the bottom end of the upper template (1); A limiting mechanism (7) is provided on the inner side of the guide post (4); The scraping and stamping mechanism (6) includes: A fixing cover (61) is fixedly installed on one side of the bottom end of the upper template (1); Multi-stage telescopic tubes (62) are fixedly installed on both the left and right sides of the top of the inner cavity of the fixed cover (61). A pressure plate (63) is fixedly installed at the bottom end of the multi-stage telescopic pipe (62); The spring (64) is adapted to fit the outer wall of the multi-stage telescopic tube (62), and the spring (64) is fixedly disposed between the fixed cover (61) and the pressure plate (63).
2. The precision scraping and stamping die for a flat panel backlight as described in claim 1, characterized in that: The pressure plate (63) is located directly above the lower module (5).
3. The precision scraping and stamping die for a flat panel backlight as described in claim 2, characterized in that: The scraping and stamping mechanism (6) further includes: A fixing plate (65) is fixedly installed on the other side of the bottom end of the upper template (1); Bolt (66), the bottom end of the fixing plate (65) is provided with slots (67) on both the front and rear sides along the left and right direction, and the bolt (66) is inserted into the slots (67); The punch (68) is inserted into the bottom end of the bolt (66); Nut (69) is screwed to the outer wall of the bolt (66), and the nut (69) locks the punch (68) under the fixing plate (65).
4. The precision scraping and stamping die for a flat panel backlight as described in claim 3, characterized in that: The inner cavity of the slot (67) is open on one side.
5. The precision scraping and stamping die for a flat panel backlight as described in claim 1, characterized in that: The limiting mechanism (7) includes: A horizontal plate (71) is fixedly installed between the two guide posts (4) on one side; Adjusting bolt (72) is screwed to one side of the cross plate (71); The limiting plate (73) is rotatably connected to one end of the adjusting bolt (72) via a bearing; Limiting rods (74) are inserted into both the front and rear sides of the horizontal plate (71), and one end of the limiting rods (74) is fixedly disposed on one side of the limiting plate (73).