A positioning and pressing device for LCD screen processing

Abstract

This invention discloses an alignment and pressing device for liquid crystal display (LCD) processing, belonging to the field of LCD processing technology. It includes: a lower frame fixedly connected to a support platform; side frames fixedly connected to both sides of the lower frame; an upper frame fixedly connected to the upper end of the side frames; and a strip-shaped slide rail provided between the upper frame, side frames, and lower frame. A connecting shaft is fixedly connected to both ends of a roller body, the connecting shaft being inserted into the strip-shaped slide rail; a collar is slidably sleeved on the connecting shaft, the collar being able to be disposed within the strip-shaped slide rail; and an elastic element capable of supporting the connecting shaft is fixedly connected to the side frames. This invention provides a simple, convenient, accurate, and reliable alignment and pressing device for LCD processing, solving the technical problems of high cost, cumbersome operation, insufficient alignment and pressing accuracy, and poor adaptability of existing equipment. It improves processing efficiency and product qualification rate, and adapts to production needs of different scales.

Description

Technical Field

[0001] This invention belongs to the field of liquid crystal display processing technology, and particularly relates to an alignment and pressing device for liquid crystal display processing. Background Technology

[0002] In the manufacturing process of LCD screens, alignment and lamination are crucial steps to ensure product quality. Their precision directly determines the display effect, structural stability, and lifespan of the LCD screen. The core components of the LCD screen must be precisely aligned and then laminated to ensure that each layer of the structure fits tightly without misalignment, avoiding defects such as display deviation, bubbles, and edge lifting, and meeting the requirements of subsequent assembly and use.

[0003] Currently, existing alignment and pressing equipment for LCD screen processing is mainly divided into two categories: one is complex automated equipment that achieves precise alignment and pressing through mechanisms such as vision alignment and multi-axis drive. However, it has high manufacturing costs, large equipment size, high maintenance difficulty, and cumbersome debugging process, making it unsuitable for small and medium-sized production scenarios or simple processing procedures, resulting in resource waste. The other category is simple manual alignment and pressing devices, which mostly adopt a separate structure. That is, the alignment of the LCD screen is first completed manually or by auxiliary positioning components, and then the pressing mechanism is switched to perform the pressing operation. This method is not only cumbersome and inefficient, but also difficult to control the accuracy of manual alignment. It is easy to cause alignment deviation due to operational errors, which in turn affects the pressing quality and increases the product defect rate.

[0004] Furthermore, in existing simple alignment and pressing devices, the positioning mechanism and the pressing mechanism are mostly set independently. During the switching process, the LCD screen is prone to displacement. Moreover, the pressing force of some devices cannot flexibly adapt to LCD screens of different thicknesses, which can easily lead to problems such as excessive pressing damaging the screen or insufficient pressing resulting in a weak fit. At the same time, the moving parts of existing devices often experience jamming and inconvenient adjustment, resulting in poor operation and difficulty in meeting the requirements of efficient and precise processing.

[0005] In view of the shortcomings of the existing technology, there is an urgent need for a simple, easy-to-operate, accurate and reliable alignment and pressing device for LCD screen processing, so as to solve the technical problems of high cost, cumbersome operation, insufficient alignment and pressing accuracy and poor adaptability of existing equipment, improve processing efficiency and product qualification rate, and adapt to the production needs of different scales. Summary of the Invention

[0006] To address the problems existing in the prior art, this invention provides an alignment and pressing device for liquid crystal display screen processing, which has the advantages of simple structure, convenient operation, accurate alignment and reliable pressing, thus solving the problems of the prior art.

[0007] The present invention is implemented as follows: a positioning and pressing device for processing liquid crystal displays includes: a lower frame fixedly connected to a support platform; side frames fixedly connected to both sides of the lower frame; an upper frame fixedly connected to the upper end of the side frames; and a strip-shaped slide rail provided between the upper frame, side frames, and lower frame; connecting shafts fixedly connected to both ends of a roller body; the connecting shafts being inserted into the strip-shaped slide rail; and collars slidably sleeved on the connecting shafts, the collars being able to be disposed in the strip-shaped slide rail; and elastic members capable of supporting the connecting shafts fixedly connected to the side frames.

[0008] As a preferred embodiment of the present invention, the collar is a circular ring, and the outer diameter of the collar has several dimensions, forming a stepped structure.

[0009] As a preferred embodiment of the present invention, the roller body includes a roller body body and an arc-shaped plate; the roller body body is provided with at least one cut with a flat surface, and a first strip groove is provided in the middle of the cut; one side of the arc-shaped plate is a flat surface, and the other side is an arc-shaped surface, and a snap-fit ​​strip is provided in the middle of the flat surface, and the snap-fit ​​strip snaps into the first strip groove.

[0010] As a preferred embodiment of the present invention, the lower side of the upper frame is provided with a first snap-fit ​​groove at equal intervals; the upper side of the lower frame is provided with a second snap-fit ​​groove at equal intervals, and the first snap-fit ​​groove and the second snap-fit ​​groove are aligned; the arc-shaped plate can be snapped into the first snap-fit ​​groove and / or the second snap-fit ​​groove.

[0011] As a preferred embodiment of the present invention, the depths of the first and second snap-fit ​​slots are different, thereby making them suitable for different sizes.

[0012] As a preferred embodiment of the present invention, it further includes a second strip groove, into which the snap-fit ​​strip can be snapped, positioning the arc-shaped plate in a downward-facing position, thereby increasing the pressing force or pressing down on a thinner liquid crystal display screen.

[0013] As a preferred embodiment of the present invention, the roller body is provided with a receiving groove, and a third strip groove is formed in the receiving groove. The snap-fit ​​strip can snap into the third strip groove, and when the snap-fit ​​strip is snapped into the third strip groove, the arc plate is located in the receiving groove, and the arc plate is perpendicular to the roller body, and the lower side of the arc plate is flush with the lower side of the roller body.

[0014] As a preferred embodiment of the present invention, the strip slide and the support platform are parallel.

[0015] As a preferred embodiment of the present invention, the strip slide and the support platform are inclined.

[0016] In a preferred embodiment of the present invention, the upper frame is provided with a plurality of threaded holes at equal intervals, and locking screws are threaded into the threaded holes to secure the collar. This fixes the roller body and achieves the pressing effect.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Compared with existing technologies, this device has a reasonable structural design and is easy to operate. Through its integrated structural design, it solves the problems of existing equipment such as separation of alignment and pressing, cumbersome operation, and insufficient precision. The specific benefits are as follows: 1. Achieve integrated alignment and pressing, improving processing efficiency: This device eliminates the need for separate positioning and pressing mechanisms. It can quickly complete the alignment and pressing process of the LCD screen simply by inserting and removing the collar and raising and lowering the roller. This simplifies the operation steps, reduces the time for process switching, effectively improves processing efficiency, and meets the needs of mass production. At the same time, it avoids the problem of screen displacement during process switching, ensuring processing stability.

[0018] 2. Precise alignment, reducing product defect rate: During alignment, the roller moves down and fits tightly against the support platform, forming a stable positioning benchmark. The LCD screen can achieve precise alignment by simply attaching the edge to the roller, eliminating the need for repeated manual calibration and effectively avoiding errors caused by manual alignment. At the same time, the roller's bonding and positioning method can be adapted to LCD screens of different sizes, providing strong alignment versatility and significantly reducing defects such as display deviation and edge lifting caused by alignment misalignment, thereby improving the product qualification rate.

[0019] 3. Reliable pressing and strong adaptability: During pressing, the collar support roller applies uniform pressure to the LCD screen. Combined with the elastic buffering effect of the elastic element, it can avoid damage to the screen due to excessive pressing force, while ensuring sufficient pressing force to make the various layers of the screen structure fit tightly without problems such as air bubbles or looseness. In addition, the elastic deformation of the elastic element can adapt to LCD screens of different thicknesses without the need for additional pressing force adjustment, adapting to the processing needs of various specifications of LCD screens and improving the versatility of the device.

[0020] 4. Simple structure, low cost and convenient maintenance: This device consists only of a support platform, frame, roller, connecting shaft, collar and elastic parts. It has a simple structure, few parts, and low manufacturing cost. Compared with complex automated alignment and pressing equipment, it greatly reduces production input and is especially suitable for small and medium-sized production scenarios. At the same time, the moving parts of the device cooperate smoothly and there is no complicated electrical control structure, which makes the later maintenance difficult and reduces maintenance costs and downtime.

[0021] 5. Easy to operate and reduces labor costs: The operation process of this device is simple and does not require professional operators. Ordinary staff can operate it proficiently after simple training. There is no need for repeated manual calibration and adjustment of pressing parameters, which effectively reduces the difficulty and cost of manual operation. At the same time, it avoids the impact of the uncertainty of manual operation on the processing quality and further ensures the stability of product quality.

[0022] 6. Stable structure and long service life: The components of the device are firmly connected, and the strip slide guides the connecting shaft, ensuring smooth lifting and movement of the roller and preventing jamming or damage. The elastic components have good elastic recovery ability, can withstand repeated compression without fatigue damage, effectively extending the service life of the device and reducing equipment replacement costs. Attached Figure Description

[0023] Figure 1 This is a first-view perspective three-dimensional structural diagram of the alignment and pressing device for processing liquid crystal displays provided in an embodiment of the present invention; Figure 2 This is provided by the embodiments of the present invention. Figure 1 A magnified structural diagram of part A in the middle; Figure 3 This is provided by the embodiments of the present invention. Figure 1 A magnified structural diagram of part B in the middle section; Figure 4 This is a two-dimensional structural diagram of the alignment and pressing device for processing a liquid crystal display screen provided in an embodiment of the present invention; Figure 5 This is provided by the embodiments of the present invention. Figure 4 A magnified structural diagram of section C; Figure 6 This is a schematic diagram of the three-dimensional structure of the roller body provided in an embodiment of the present invention; Figure 7 This is provided by the embodiments of the present invention. Figure 6 A magnified structural diagram of part D in the middle.

[0024] In the diagram: 1. Support platform; 2. Lower frame; 3. Side frame; 4. Upper frame; 5. Strip slide; 6. Roller body; 7. Connecting shaft; 8. Collar; 9. Elastic element; 10. Locking screw; 11. Second strip groove; 61. Roller body body; 611. Cut surface; 612. First strip groove; 613. Receiving groove; 614. Third strip groove; 62. Arc plate; 621. Flat surface; 622. Arc surface; 623. Connecting strip; 41. First connecting groove; 21. Second connecting groove; 42. Threaded hole. Detailed Implementation

[0025] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0026] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] like Figures 1 to 7As shown in the figure, an alignment and pressing device for processing a liquid crystal display screen provided by an embodiment of the present invention includes: a support platform 1 and a roller body 6. A lower frame 2 is fixedly connected to the support platform 1, and side frames 3 are fixedly connected to both sides of the lower frame 2. An upper frame 4 is fixedly connected to the upper end of the side frames 3. A strip-shaped slide 5 is provided between the upper frame 4, the side frames 3, and the lower frame 2. A connecting shaft 7 is fixedly connected to both ends of the roller body 6. The connecting shaft 7 is inserted into the strip-shaped slide 5. A collar 8 is slidably sleeved on the connecting shaft 7. The collar 8 can be disposed in the strip-shaped slide 5. An elastic member 9 capable of supporting the connecting shaft 7 is fixedly connected to the side frame 3.

[0028] This alignment and pressing device for LCD screen processing is based on the linkage of mechanical structures to achieve integrated operation of alignment and pressing processes. Its core working principle revolves around the position adjustment of roller 6. By utilizing gravity, the elastic effect of elastic element 9, and the cooperation between collar 8 and strip slide 5, the precise alignment and reliable pressing of the LCD screen are achieved. The specific working process is as follows: 1. Initial state of the device: The connecting shafts 7 at both ends of the roller body 6 are inserted into the strip slide 5 between the upper frame 4, the side frame 3, and the lower frame 2. The collars 8 slidably fitted on the connecting shafts 7 are embedded in the strip slide 5. At this time, the collars 8 support the connecting shafts 7, keeping the roller body 6 at a certain height and leaving a gap between it and the support platform 1 to facilitate the placement of the LCD screen to be processed. The elastic element 9 fixedly connected to the side frame 3 is in a naturally extended state and is not compressed, serving only as a backup support.

[0029] 2. Alignment Process: The operator places the LCD screen to be processed on the support platform 1, and then pushes the roller 6 along the strip slide 5 to the end of the slide. At this time, the connecting shaft 7 falls exactly on the elastic element 9 fixed on the side frame 3, and the elastic element 9 temporarily supports the connecting shaft 7. Next, the collar 8 on the connecting shaft 7 is pulled out from the strip slide 5, releasing the supporting effect of the collar 8 on the connecting shaft 7. Under the action of the weight of the roller 6 and the connecting shaft 7, the two together squeeze the elastic element 9, causing the elastic element 9 to undergo elastic deformation. The roller 6 moves down accordingly until the roller 6 is in contact with the upper edge of the lower frame 2. At this time, the position of the roller 6 is lowered to its lowest point, and its lower side is in close contact with the support platform 1, forming a stable positioning reference surface. The operator then attaches one edge of the LCD screen to the roller 6, thus completing the precise alignment of the LCD screen and ensuring that the screen position does not shift.

[0030] 3. Pressing Process: After the LCD screen is aligned, the operator pushes the collar 8 back into the strip slide 5. Once embedded in the slide, the collar 8 provides effective support to the connecting shaft 7, overcoming the weight of the roller 6 and the connecting shaft 7, as well as the elastic restoring force of the elastic element 9. This lifts the roller 6 upwards, causing it to detach from its contact with the support platform 1 and precisely press it onto the upper side of the LCD screen. At this time, the elastic element 9 gradually returns to its natural state under the elastic restoring force. Supported by the collar 8, the roller 6 maintains a stable pressing force, applying uniform pressure to the LCD screen and moving within the strip slide 5, achieving a tight fit between the various layers of the screen structure, thus completing the pressing process.

[0031] 4. Reset and Cyclic Operation: After pressing is completed, the collar 8 is pulled out from the strip slide 5, and the roller 6 moves down and resets under gravity. The operator takes out the finished LCD screen, and then pushes the roller 6 back to the initial position along the strip slide 5. The collar 8 is then re-embedded into the strip slide 5, and the next round of alignment pressing operation can begin. The whole process does not require complicated debugging and is convenient and efficient.

[0032] Specifically, the collar 8 is a circular ring with a stepped outer diameter. Based on the stepped circular structure of the collar 8 and the different outer diameter designs, by replacing collars 8 with different outer diameters, the support height of the connecting shaft 7 within the strip slide 5 is changed, thereby adjusting the distance between the roller body 6 and the support platform 1. This adapts to LCD screens of different thicknesses, ensuring precise alignment between the roller body 6 and the screen body during alignment and uniform pressure during pressing.

[0033] The collar 8 adopts a circular structure with 2-4 different outer diameters distributed in a stepped pattern. The inner diameter of the collar 8 matches the outer diameter of the connecting shaft 7, allowing it to slide smoothly onto the connecting shaft 7. Based on the thickness of the LCD screen to be processed, a collar 8 with the corresponding outer diameter is selected, fitted onto the connecting shaft 7, and embedded in the strip slide 5, thus achieving the adjustment of the roller body 6 height.

[0034] Specifically, the roller body 6 includes a roller body 61 and an arc-shaped plate 62; the roller body 61 is provided with at least one cut 611 with a flat surface, and a first strip groove 612 is provided in the middle of the cut 611; one side of the arc-shaped plate 62 is a flat surface 621 and the other side is an arc-shaped surface 622, and a snap-fit ​​strip 623 is provided in the middle of the flat surface 621, and the snap-fit ​​strip 623 is snapped into the first strip groove 612.

[0035] The roller body 6 includes a roller body 61 and an arc plate 62. The arc plate 62 and the roller body 61 are detachably connected by the snap-fit ​​strip 623 on the arc plate 62 and the first strip groove 612 on the roller body 61. The cut surface 611 of the roller body 61 and the arc surface 622 / plane 621 of the arc plate 62 provide two usage methods to solve the problems of uneven alignment of the circumferential surface and easy damage to the screen body during pressing.

[0036] The main body 61 of the roller is cylindrical, with a flat cutout 611 on it. A first strip groove 612 is formed in the middle of the cutout 611 along the length of the roller body 6. The arc plate 62 has a flat surface 621 on one side and an arc surface 622 on the other side. A snap-fit ​​strip 623 matching the first strip groove 612 is provided in the middle of the flat surface 621. The snap-fit ​​strip 623 can be directly snapped into the first strip groove 612 to fix the arc plate 62 to the main body 61 of the roller, forming a complete circular roller body 6. The arc plate 62 can be pulled out to use the cutout surface 611 of the main body 61 of the roller body alone.

[0037] It has two usage methods: In the first configuration, the roller body 61 and the arc-shaped plate 62 can form a complete circular roller 6, which is used normally. In the second configuration, the arc-shaped plate 62 can be removed for use. During the alignment stage, the arc-shaped plate 62 can be removed, allowing the cut surface 611 of the roller body 61 to align with the end edge of the display screen. This results in a smoother alignment (because the edge of the roller 6 is a circular surface, it might cause misalignment between the upper and lower parts of the display screen). During the pressing stage, the arc-shaped plate 62 can also be removed, with the cut surface 611 of the roller body 61 facing downwards, aligning with the upper surface of the display screen. This planar pressing provides a larger contact area and reduces the risk of damage to the display screen.

[0038] Furthermore, it also includes a second strip groove 11, which allows the arc plate 62 to be pulled out and the snap-fit ​​strip 623 to be snapped into the second strip groove 11. At this time, if the arc plate 62 is set in a downward position, the pressing force can be increased, or a thinner LCD screen can be pressed.

[0039] Specifically, the lower side of the upper frame 4 is provided with equidistant first locking grooves 41; the upper side of the lower frame 2 is provided with equidistant second locking grooves 21, the first locking grooves 41 and the second locking grooves 21 being aligned; the arc-shaped plate 62 can be locked into the first locking grooves 41 and / or the second locking grooves 21. The depths of the various first locking grooves 41 and second locking grooves 21 are different, thus adapting to different sizes.

[0040] Aligned first snap-fit ​​groove 41 and second snap-fit ​​groove 21 are respectively provided on the lower side of the upper frame 4 and the upper side of the lower frame 2. By using the snap-fit ​​cooperation between the arc plate 62 and the snap-fit ​​grooves 41 and 21, the roller body 61 can be fixedly positioned, breaking the limitation that the roller body 6 can only be aligned at the end of the strip slide 5. The position of the roller body 6 can be flexibly adjusted according to the screen size.

[0041] Several first locking slots 41 are equally spaced along the length of the strip slide 5 on the lower side of the upper frame 4, and several second locking slots 21 are equally spaced on the upper side of the lower frame 2. The first locking slots 41 and the second locking slots 21 are the same size and spacing and are aligned vertically. After the arc plate 62 is partially pulled out from the roller body 61, it can be directly inserted into any set of aligned first locking slots 41 and second locking slots 21, or inserted into one of the locking slots 41 or 21 to fix the roller body 61.

[0042] Based on the different depths of the first locking groove 41 and the second locking groove 21, the fixed height and position of the roller body 61 are adjusted by inserting the arc plate 62 into the locking grooves 41 and 21 of different depths, thereby adapting to LCD screens of different sizes, thicknesses and widths and improving the versatility of the device.

[0043] In practical use, the following methods are employed: First, during the alignment stage, the roller body 61 can be fixed by inserting the arc-shaped plate 62 into the second locking groove 21. At this time, the roller body 61 is not limited to alignment at the end of the strip slide 5, but can be positioned anywhere. This increases adaptability; for example, for shorter displays, it can be fixed in the desired position as needed. Second, during the pressing stage, the arc-shaped plate 62 can be inserted into the first locking groove 41, thereby fixing the position of the roller body 61. Arc-shaped plates 62 made of different materials can also be used.

[0044] Specifically, the roller body 61 is provided with a receiving groove 613, and a third strip groove 614 is formed in the receiving groove 613. The snap-fit ​​strip 623 can snap into the third strip groove 614. When the snap-fit ​​strip 623 is snapped into the third strip groove 614, the arc plate 62 is located in the receiving groove 613, and the arc plate 62 is perpendicular to the roller body 6. The lower side of the arc plate 62 is flush with the lower side of the roller body 61.

[0045] The curved plate 62 is inserted into the third strip groove 614, making the curved plate 62 perpendicular to the roller body 6. At this time, the roller body 61 can perform longitudinal pressing on the display screen, and the curved plate 62 can perform transverse pressing. Specifically, a receiving groove 613 and a third strip groove 614 are provided on the roller body 61. By inserting the retaining strip 623 of the curved plate 62 into the third strip groove 614, the curved plate 62 is fixed in the receiving groove 613 and perpendicular to the roller body 61. At this time, the roller body 61 can perform longitudinal pressing on the display screen, and the curved plate 62 can perform transverse pressing on the display screen, realizing synchronous longitudinal and transverse pressing, improving pressing efficiency and effect.

[0046] A receiving groove 613 is radially formed on the roller body 61. A third strip groove 614, which matches the snap-fit ​​strip 623, is formed in the middle of the inner wall of the receiving groove 613 and is perpendicular to the first strip groove 612. The arc plate 62 is pulled out from the first strip groove 612 and rotated 90 degrees. The snap-fit ​​strip 623 is then snapped into the third strip groove 614. At this time, the arc plate 62 is embedded in the receiving groove 613, perpendicular to the roller body 61, and the lower side of the arc plate 62 is flush with the lower side of the roller body 61, so that longitudinal and transverse synchronous pressing can be performed.

[0047] In one embodiment, the strip slide 5 and the support platform 1 are parallel. Setting the strip slide 5 parallel to the support platform 1 ensures that the roller 6 remains parallel to the support platform 1 as it moves along the strip slide 5. This guarantees a uniform contact surface between the roller 6 and the LCD screen, precise edge contact during alignment, and uniform pressure distribution during pressing, thus ensuring processing quality. The roller 6's parallelism with the support platform 1 ensures a smoother edge contact during alignment and uniform pressure during pressing, preventing damage to the screen from excessive local pressure. The roller 6 moves smoothly without jamming or tilting, improving operational convenience. It is suitable for the processing requirements of conventional flat-panel LCD screens, with a reasonable structure and high positioning and pressing accuracy.

[0048] In another embodiment, the strip slide 5 and the support platform 1 are inclined. The strip slide 5 is set to be inclined at an angle to the support platform 1. The roller 6 is allowed to slide naturally down the inclined slide by gravity, which facilitates quick adjustment of the position of the roller 6. At the same time, the pressing force of the roller 6 on the display screen can be adjusted according to the inclination angle to adapt to the alignment pressing requirements of special angles.

[0049] Furthermore, the upper frame 4 is provided with several threaded holes 42 at equal intervals, and locking screws 10 are threaded into the threaded holes 42. The locking screws 10 can fix the collar 8, thereby fixing the roller body 6 and achieving the pressing effect. The upper frame 4 is provided with several threaded holes 42 at equal intervals. Through the threaded connection between the locking screws 10 and the threaded holes 42, rotating the locking screws 10 causes their ends to press against the collar 8, thereby fixing the position of the collar 8 and the connecting shaft 7, keeping the roller body 6 in a stable pressing state, ensuring uniform and lasting pressing force, and improving pressing reliability. Several threaded holes 42 (communicating with the strip slide 5) are equally spaced along the length of the strip slide 5 on the upper frame 4. Locking screws 10 (such as cross-groove locking screws) are threaded into the threaded holes 42. When the roller body 6 is adjusted to the pressing position, rotating the locking screws 10 causes the screw ends to pass through the threaded holes 42 and press against the outer surface of the collar 8, fixing the collar 8 in the strip slide 5, thereby fixing the position of the roller body 6. The roller 6 can be quickly fixed in position to ensure that it does not move or shake during the pressing process, thus guaranteeing the pressing accuracy and effect. The locking screw 10 can flexibly adjust the tightening force to adapt to the pressing requirements of displays of different thicknesses, avoiding pressing that is too tight or too loose. The structure is simple, the locking operation is convenient, and it can be reused, improving the stability and practicality of the device.

[0050] Working principle of the invention: In use, the roller 6 moves to the end of the strip slide 5, the elastic element 9 supports the connecting shaft 7, and the collar 8 is pulled out of the strip slide 5. Under the action of gravity, the roller 6 and the connecting shaft 7 press against the elastic element 9 and descend until they are in contact with the upper edge of the lower frame 2. At this time, the position of the roller 6 is lower, and the lower side of the roller 6 is in contact with the support platform 1, which can achieve the alignment effect. For example, one edge of the LCD screen to be processed can be attached to the roller 6 to achieve the alignment effect. Then, the collar 8 is put back into the strip slide 5 to support the roller 6, so that the roller 6 is pressed against the upper side of the LCD screen to achieve the pressing effect.

[0051] 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.

[0052] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning and pressing device for processing liquid crystal displays, characterized in that, include: A support platform (1) is provided, a lower frame (2) is fixedly connected to the support platform (1), side frames (3) are fixedly connected to both sides of the lower frame (2), an upper frame (4) is fixedly connected to the upper end of the side frames (3), and a strip slide (5) is provided between the upper frame (4), the side frames (3) and the lower frame (2). Roller body (6), with connecting shafts (7) fixedly connected to both ends of the roller body (6), the connecting shafts (7) being inserted into the strip slide (5), and a collar (8) being slidably sleeved on the connecting shaft (7), the collar (8) being able to be set in the strip slide (5); An elastic element (9) capable of bearing the connecting shaft (7) is fixedly connected to the side frame (3).

2. The alignment and pressing device for processing a liquid crystal display screen as described in claim 1, characterized in that: The collar (8) is a circular ring, and the outer diameter of the collar (8) has several dimensions and is a stepped structure.

3. The alignment and pressing device for processing a liquid crystal display screen as described in claim 1, characterized in that: The roller body (6) includes a roller body body (61) and an arc plate (62); the roller body body (61) is provided with at least one cut (611) with a flat surface, and a first strip groove (612) is provided in the middle of the cut (611); one side of the arc plate (62) is a flat surface (621) and the other side is an arc surface (622), and a snap-fit ​​strip (623) is provided in the middle of the flat surface (621), and the snap-fit ​​strip (623) is snapped into the first strip groove (612).

4. The alignment and pressing device for liquid crystal display screen processing as described in claim 3, characterized in that: The lower side of the upper frame (4) is provided with a first snap-fit ​​groove (41) at equal intervals; the upper side of the lower frame (2) is provided with a second snap-fit ​​groove (21) at equal intervals, the first snap-fit ​​groove (41) and the second snap-fit ​​groove (21) are aligned; the arc plate (62) can be snapped into the first snap-fit ​​groove (41) and / or the second snap-fit ​​groove (21).

5. The alignment and pressing device for liquid crystal display screen processing as described in claim 4, characterized in that: The depths of some of the first snap-fit ​​slots (41) and the second snap-fit ​​slots (21) are different, thus making them suitable for different sizes.

6. The alignment and pressing device for liquid crystal display screen processing as described in claim 5, characterized in that: It also includes a second groove (11), into which the snap-fit ​​strip (623) can be snapped, and the arc plate (62) is positioned downwards, which can increase the pressing force or press down on a thinner liquid crystal display screen.

7. The alignment and pressing device for processing a liquid crystal display screen as described in claim 6, characterized in that: The roller body (61) is provided with a receiving groove (613), and a third strip groove (614) is provided in the receiving groove (613). The snap-fit ​​strip (623) can snap into the third strip groove (614). When the snap-fit ​​strip (623) is snapped into the third strip groove (614), the arc plate (62) is located in the receiving groove (613), and the arc plate (62) is perpendicular to the roller body (6). The lower side of the arc plate (62) is flush with the lower side of the roller body (61).

8. The alignment and pressing device for processing a liquid crystal display screen as described in claim 7, characterized in that: The strip slide (5) and the support platform (1) are parallel.

9. The alignment and pressing device for processing a liquid crystal display screen as described in claim 7, characterized in that: The strip slide (5) and the support platform (1) are inclined.

10. The alignment and pressing device for processing a liquid crystal display screen as described in claim 7, characterized in that: The upper frame (4) is provided with a plurality of threaded holes (42) at equal intervals. A locking screw (10) is threaded into the threaded hole (42) and the locking screw (10) can fix the collar (8).

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