A limiting mechanism for display screen processing

Abstract

The utility model discloses a kind of limiting mechanisms for display screen processing, it is related to display screen processing technical field, and the utility model includes screen processing equipment, the middle part of screen processing equipment is equipped with fixed mechanism, for the display screen needing processing is fixed by limiting, fixed mechanism includes: limiting component includes fixedly installed on the workbench of screen processing equipment upper portion, the rotation of driving plate is driven by servo motor, driving plate is dragged two moving rods along L-shaped plate sliding by driving rod, drive four groups L-shaped frame and its rotating roller along workbench sliding slot to center synchronous folding, so that rotating roller on the same side with moving rod first contact screen side edge, L-shaped frame is deflected under continuous movement, drive other side rotating roller in turn and screen corner other side surface adhere, ensure that screen four sides and corner are evenly, stably wrapped and limited, effectively prevent screen deviation in processing process.

Description

Technical Field

[0001] This utility model relates to the field of display screen processing technology, specifically a limiting mechanism for display screen processing. Background Technology

[0002] The manufacturing process of monitor screens typically involves a variety of precision processing steps, such as grinding, cutting, cleaning the screen edges, or mounting functional modules. These steps generally require the screen to be precisely positioned on the processing equipment. Any slight displacement or vibration may lead to a decrease in processing accuracy, or even cause product scratches, coating damage, or functional defects.

[0003] Referring to the patent document: Patent Publication No. CN223223494U, Patent Publication Date 2025-08-15, a cutting and limiting mechanism for display screen processing is disclosed, relating to the field of display screen manufacturing and processing technology. It includes a fixed base, with a flattening and cutting mechanism fixedly connected to the top of the fixed base; the fixed base includes a base with multiple sets of ventilation holes at its top; a connecting cover is fixedly connected to the bottom of the base; the ventilation holes extend into the interior of the connecting cover; an air pump is fixedly connected to the side wall of the base; the output end of the air pump is connected to a pipe; the end of the pipe furthest from the air pump is connected to the connecting cover; a groove is formed at the top of the base; by using the air pump to draw air from inside the connecting cover, a negative pressure is generated inside the ventilation holes, thereby attracting the raw material sheet to the top of the base. This fixing method does not damage the raw material sheet, and because there are many ventilation holes, the suction force on the raw material sheet is more uniform, resulting in a better fixing effect.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:

[0005] In existing screen splitting processes, the monitor screen is usually placed directly on a lint-free cloth or fixed by suction cups. The friction between the lint-free cloth and the screen provides positioning. However, in practical applications, this positioning method has several drawbacks. First, the friction of the lint-free cloth is limited, and its soft texture makes it easily deformable. When external forces such as cutting with tools or gripping with robotic arms are applied during processing, the screen is prone to lateral displacement or slight slippage, resulting in uneven edges, burrs, and other defects. While suction cups can avoid contact damage, they require extremely high flatness and cleanliness of the screen surface and are not suitable for screens with ventilation holes or special coatings.

[0006] Therefore, this utility model provides a limiting mechanism for display screen processing. Utility Model Content

[0007] To address the problems of existing methods using lint-free cloth friction for positioning, which are prone to screen displacement and poor cutting due to the softness and insufficient friction of the cloth, and the limited application range of suction cups, the purpose of this invention is to provide a positioning mechanism for display screen processing.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a limiting mechanism for processing a display screen, comprising a screen processing device, wherein a fixing mechanism is provided in the middle of the screen processing device for limiting and fixing the display screen to be processed, the fixing mechanism comprising:

[0009] The limiting assembly includes a worktable fixedly installed on the upper part of the screen processing equipment. A drive plate is rotatably installed at the bottom center of the worktable. A drive assembly is provided at the bottom center of the drive plate. Two symmetrically distributed moving rods are provided at the bottom of the worktable. A drive rod is movably installed at the bottom center of each of the two moving rods. The other end of each of the two drive rods is movably installed at the bottom of the drive plate. Two symmetrically distributed limiting rollers are rotatably installed at the top of each of the two moving rods. An L-shaped frame is fixedly installed at the top of each of the four limiting rollers.

[0010] An adaptive component, located in the middle of the limiting roller, is used to synchronously limit the four sides of the display screen.

[0011] Preferably, the adaptive component includes a limiting rod fixedly installed at the middle of the bottom end of the L-shaped frame, and torsion springs are sleeved on the outer sides of the four limiting rods. The upper part of the torsion spring is fixedly installed at the middle of the bottom end of the L-shaped frame, and the lower part of the torsion spring is fixedly installed at the upper part of the drive rod.

[0012] Preferably, the drive assembly package is fixedly installed in the middle of the screen processing equipment as a servo motor, and the bottom center of the drive board is fixedly installed in the drive end of the servo motor.

[0013] Preferably, two symmetrically distributed L-shaped plates are fixedly installed at the bottom of the workbench, and the two ends of the two moving rods are slidably locked in the middle of one side of the L-shaped plates.

[0014] Preferably, the upper part of the worktable has two symmetrically distributed slide grooves, and four limiting rollers are slidably engaged in the middle of the slide grooves.

[0015] Preferably, each of the four L-shaped frames is rotatably mounted with a rotating roller at both ends, and the outer surface of the rotating roller is covered with a flexible wear-resistant material layer.

[0016] Beneficial effects

[0017] This utility model provides a limiting mechanism for display screen processing. Compared with the prior art, it has the following advantages:

[0018] 1. This application uses a servo motor to drive the drive board to rotate. The drive board pulls two moving rods along the L-shaped plate via a drive rod, causing four sets of L-shaped frames and their rotating rollers to synchronously retract towards the center along the worktable slide groove. This allows the rotating rollers on the same side as the moving rods to contact the side of the screen first. During continuous movement, the L-shaped frame is deflected by force, causing the rotating rollers on the other side to naturally fit against the other side of the screen corner. This progressive contact process effectively avoids rigid impact, ensuring that the four sides and corners of the screen are uniformly and stably wrapped and limited, greatly improving positioning accuracy and efficiency, and effectively preventing screen offset during processing.

[0019] 2. This application, by setting an adaptive structure composed of a limit rod and a torsion spring, can achieve flexible clamping and adaptive adjustment of the screen by limiting the position. When the rotating roller on the L-shaped frame contacts the screen surface, the applied pressure will cause the L-shaped frame to deflect around the limit rod. At this time, the torsion spring sleeved on the limit rod undergoes elastic deformation, absorbing and buffering this pressure and displacement, and automatically adjusting the angle of the L-shaped frame and the contact posture of the rotating roller, ensuring that each rotating roller can maintain surface contact with both sides of the screen corners of different sizes, thicknesses or slight deformations and apply a uniform and gentle clamping force. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the limiting component structure of this utility model.

[0022] Figure 3 This is another structural schematic diagram of the limiting component of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the adaptive component after it has been disassembled in this utility model.

[0024] In the diagram: 1. Screen processing equipment; 2. Fixing mechanism; 21. Limiting component; 211. Worktable; 212. Servo motor; 213. Drive plate; 214. Drive rod; 215. Moving rod; 216. L-shaped plate; 217. Slide groove; 22. Adaptive component; 221. L-shaped frame; 222. Limiting roller; 223. Limiting rod; 224. Torsion spring; 225. Rotating roller. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a limiting mechanism for processing a display screen, including a screen processing device 1, and a fixing mechanism 2 in the middle of the screen processing device 1, used to limit and fix the display screen to be processed to prevent the screen from shifting during processing. The fixing mechanism 2 includes:

[0027] The limiting component 21 includes a worktable 211 fixedly installed on the upper part of the screen processing equipment 1. A drive plate 213 is rotatably mounted at the center of the bottom end of the worktable 211. A drive assembly is provided at the center of the bottom end of the drive plate 213. Two symmetrically distributed moving rods 215 are provided at the bottom end of the worktable 211. A drive rod 214 is movably mounted at the center of the bottom end of each of the two moving rods 215. The other ends of the two drive rods 214 are movably mounted at the bottom end of the drive plate 213. The two ends of the two drive rods 214 are respectively mounted at the center of the drive plate 213 and the moving rods 215 via fisheye shafts. Two symmetrically distributed limiting rollers 222 are rotatably mounted at the top ends of the two moving rods 215. The limiting rollers 222 are made of polyurethane elastic material and are covered with an outer layer. A 0.5mm thick silicone layer is wrapped around the screen to provide stable support and buffer compressive stress. The top of each of the four limiting rollers 222 is fixedly mounted with an L-shaped frame 221. The L-shaped frame 221 is made of one-piece molded ABS engineering plastic with rounded corners to prevent sharp edges from scratching the screen. In the initial state, with the worktable 211 as the reference, the angle of the L-shaped frame 221 is 30 degrees. With the movement of the two moving rods 215, the rotating roller 225 on the same side as the moving rod 215 can first contact the display screen. After the L-shaped frame 221 is deflected by relative movement, the rotating roller 225 on the other side contacts the other side of the corner of the display screen, thus achieving four-sided limiting and fixing of the display screen.

[0028] The adaptive component 22 is located in the middle of the limiting roller 222 and is used to synchronously limit the four sides of the display screen.

[0029] The adaptive component 22 includes a limiting rod 223 fixedly installed at the middle of the bottom end of the L-shaped frame 221. A torsion spring 224 is sleeved on the outer side of the four limiting rods 223. The upper part of the torsion spring 224 is fixedly installed at the middle of the bottom end of the L-shaped frame 221, and the lower part of the torsion spring 224 is fixedly installed at the upper part of the drive rod 214. The upper part of the torsion spring 224 is fixedly installed at the bottom end of the L-shaped frame 221 by a buckle, and the lower part is fixedly installed at the upper part of the drive rod 214 by welding to prevent loosening due to long-term vibration. Under the action and reaction force of the torsion spring 224, the L-shaped frame 221 can be reset in time after moving away from the display screen for the next use.

[0030] The drive assembly package is fixedly installed in the middle of the screen processing equipment 1. The bottom center of the drive board 213 is fixedly installed on the drive end of the servo motor 212. The servo motor 212 is a Delta ECMA series servo motor with model number ECMA-C20807RS. Under its drive, it can stably drive the drive board 213 to rotate forward and backward.

[0031] Two symmetrically distributed L-shaped plates 216 are fixedly installed at the bottom of the workbench 211. The two ends of the two moving rods 215 are slidably locked in the middle of one side of the L-shaped plate 216. By setting the L-shaped plate 216, the two ends of the two moving rods 215 can be supported and limited to ensure the stability of their relative or opposite movement.

[0032] The upper part of the worktable 211 has two symmetrically distributed slide grooves 217, and four limiting rollers 222 are slidably locked in the middle of the slide grooves 217. The slide grooves 217 can provide space for the movement of the limiting rollers 222 and have a guiding function.

[0033] Each of the four L-shaped frames 221 has a rotating roller 225 rotatably mounted at both ends. The outer surface of the rotating roller 225 is covered with a flexible wear-resistant material layer, and the surface of the wear-resistant material layer has a diamond-shaped anti-slip texture, which increases the friction with the screen and avoids scratching the anti-reflective coating or touch layer on the screen surface. At the same time, the rotating roller 225 is mounted on the upper part of the L-shaped frame 221 through a deep groove ball bearing.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] During operation, the servo motor 212 rotates, driving the drive plate 213 to rotate. The drive plate 213 pulls two moving rods 215 along the L-shaped plate 216 via the drive rod 214. During the movement of the moving rods 215, the limiting rollers 222 mounted on their top rotatings move synchronously along the slide groove 217 on the upper part of the worktable 211, along with the L-shaped frame 221 and the rotating rollers 225. They gradually approach the display screen from all four sides. The limiting rods 223 at the bottom of the L-shaped frame 221 are fitted with torsion springs 224. When the L-shaped frame 221 contacts the screen and is compressed, the torsion springs 224 undergo elastic deformation. In conjunction with the limiting rods 223, the position and angle of the L-shaped frame 221 are adaptively adjusted, so that each pair of rotating rollers 225 on the four L-shaped frames 221 simultaneously contacts and clamps the two sides at the four corners of the display screen. This achieves the limiting and fixing of the display screen to be processed, ensuring stability during the processing.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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 limiting mechanism for display screen processing, comprising a screen processing device (1), characterized in that: The screen processing equipment (1) is provided with a fixing mechanism (2) in the middle, which is used to limit and fix the display screen to be processed. The fixing mechanism (2) includes: The limiting component (21) includes a worktable (211) fixedly installed on the upper part of the screen processing equipment (1). A drive plate (213) is rotatably installed at the bottom center of the worktable (211). A drive component is provided at the bottom center of the drive plate (213). Two symmetrically distributed moving rods (215) are provided at the bottom of the worktable (211). A drive rod (214) is movably installed at the bottom center of each of the two moving rods (215). The other ends of the two drive rods (214) are movably installed at the bottom of the drive plate (213). Two symmetrically distributed limiting rollers (222) are rotatably installed at the top of each of the two moving rods (215). An L-shaped frame (221) is fixedly installed at the top of each of the four limiting rollers (222). An adaptive component (22) is disposed in the middle of the limiting roller (222) for synchronously limiting the four sides of the display screen.

2. The limiting mechanism for display screen processing according to claim 1, characterized in that: The adaptive component (22) includes a limiting rod (223) fixedly installed at the middle of the bottom end of the L-shaped frame (221). A torsion spring (224) is sleeved on the outer side of the four limiting rods (223). The upper part of the torsion spring (224) is fixedly installed at the middle of the bottom end of the L-shaped frame (221), and the lower part of the torsion spring (224) is fixedly installed on the upper part of the drive rod (214).

3. The limiting mechanism for display screen processing according to claim 1, characterized in that: The drive assembly package is fixedly installed in the middle of the servo motor (212) in the screen processing equipment (1), and the bottom middle of the drive board (213) is fixedly installed in the drive end of the servo motor (212).

4. The limiting mechanism for display screen processing according to claim 1, characterized in that: The bottom of the workbench (211) is fixedly installed with two symmetrically distributed L-shaped plates (216), and the two ends of the two moving rods (215) are slidably locked in the middle of one side of the L-shaped plate (216).

5. A limiting mechanism for processing a display screen according to claim 1, characterized in that: The upper part of the worktable (211) has two symmetrically distributed slide grooves (217), and four limiting rollers (222) are slidably locked in the middle of the slide grooves (217).

6. The limiting mechanism for display screen processing according to claim 1, characterized in that: Each of the four L-shaped frames (221) is rotatably mounted with a rotating roller (225) at both ends, and the outer surface of the rotating roller (225) is covered with a flexible wear-resistant material layer.

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