Polaroid taking and falling preventing device of LCD attaching machine

Abstract

The utility model relates to a feeding device, and provides a liquid crystal display (LCD) attaching machine polaroid taking anti-falling device which comprises a back plate, a bottom plate is fixedly connected to the back plate, a conveying mechanism is connected to the bottom plate in a sliding mode, the conveying mechanism comprises a first air cylinder, a sliding plate, a first fixed plate and a movable plate, and a base of the first air cylinder is fixedly connected to the lower end of the bottom plate. The sliding plate is slidably connected to the upper end of the bottom plate, the telescopic end of the first air cylinder is fixedly connected with the sliding plate, the first fixed plate is fixedly connected to the front end of the sliding plate, the movable plate is slidably connected to the middle of the sliding plate, the right ends of the first fixed plate and the movable plate are fixedly connected with limiting blocks, and the polaroid is arranged between the first fixed plate and the movable plate. The ends, close to each other, of the two limiting blocks are arranged to be inclined planes with teeth, so that when the polaroid on the rightmost side is attached to the adhesive tape, the polaroid on the rightmost side is slightly bent and slightly shakes, the electrostatic adsorption force between the polaroid on the rightmost side and the polaroid on the next side is eliminated, and the polaroid on the next side cannot be taken out.

Description

Technical Field

[0001] The utility model relates to a feeding device, in particular to a polarizer material taking and preventing film from falling off device for an LCD attaching machine. Background Art

[0002] In the production process of liquid crystal displays (LCDs), the LCD laminator is a critical piece of equipment responsible for precisely attaching polarizers to LCD panels. Polarizers are an indispensable component of LCD display technology, converting unpolarized light into polarized light. This, combined with the properties of liquid crystal molecules, controls the passage of light and enables image display.

[0003] In the existing polarizer loading process, the polarizers are first attached to a strip of tape, separating the individual polarizers at equal distances for subsequent bonding to the LCD panel. However, during the process of attaching the polarizers to the tape, due to the smooth and thin surface of the polarizers, there will be static adsorption between the two polarizers. As a result, after the tape sticks to one polarizer, it will often pull the next polarizer in contact with it out of the storage rack. Under the action of its own weight, the pulled-out polarizer will automatically break away and fall. In the existing technology, a hopper with an inclined entrance is set under the storage rack to receive the falling polarizers. This method requires frequent collection and sorting of scattered polarizers in the hopper to prevent overflow and affect the operation of the equipment. In addition, polarizers that occasionally fall out of the hopper will cause the equipment to shut down. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the purpose of the utility model is to provide a polarizer material removal and anti-dropping device for an LCD attaching machine, comprising a back plate, a bottom plate fixedly connected to the back plate, a conveying mechanism slidably connected to the bottom plate, the conveying mechanism comprising a first cylinder, a slide plate, a first fixed plate and a movable plate, the first cylinder base is fixedly connected to the lower end of the bottom plate, the slide plate is slidably connected to the upper end of the bottom plate, the telescopic end of the first cylinder is fixedly connected to the slide plate, the first fixed plate is fixedly connected to the front end of the slide plate, the movable plate is slidably connected to the middle part of the slide plate, the right ends of the first fixed plate and the movable plate are both fixedly connected to a limiting block, and the polarizer is placed between the first fixed plate and the movable plate.

[0005] Furthermore, the two limiting blocks are provided with teeth at one end close to each other.

[0006] Furthermore, one end of the two limit blocks close to each other is an inclined surface, with a larger distance between the left side and a smaller distance between the right side.

[0007] Furthermore, the inclination angle of the inclined surfaces of the two limit blocks close to each other at one end is preferably 15°.

[0008] Furthermore, the conveying mechanism also includes a second fixed plate and an adjusting rod. The second fixed plate is fixedly connected to the rear end of the skateboard. The adjusting rod passes through the first fixed plate, the movable plate and the left side of the second fixed plate in sequence. The adjusting rod is threadedly connected to the movable plate for adjusting the front and rear position of the movable plate.

[0009] Furthermore, a plurality of sliders are fixedly connected to the bottom end of the slide plate, and the bottom ends of the plurality of sliders are in contact with the bottom plate, and the slide plate slides on the bottom plate through the sliders.

[0010] Furthermore, it also includes an ejection mechanism, which includes a second cylinder, a push plate and an adjustment block. The second cylinder base is fixedly connected to the rear side of the second fixed plate, its telescopic end is fixedly connected to the push plate, and the front end of the push plate is fixedly connected to the two adjustment blocks.

[0011] Furthermore, a plurality of guide rollers are fixedly connected to the back plate, and the plurality of guide rollers are used to guide the adhesive tape.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. By setting a pair of limit blocks, the two limit blocks are set close to each other at one end to form a toothed slope. When the rightmost polarizer is attached to the tape, the rightmost polarizer will have a slight bend and a slight shake, thereby eliminating the electrostatic adsorption force between the rightmost polarizer and the next polarizer, so that the next polarizer will not be carried out with the rightmost polarizer, avoiding the trouble of setting up a hopper to take over, and also reducing the failure rate of equipment operation.

[0014] 2. By setting an adjustment rod to adjust the distance between the movable plate and the first fixed plate, it can adapt to polarizers of different sizes, thereby enhancing the smoothness and economic benefits of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the front structure of the polarizer material removal and anti-drop device of the LCD attaching machine.

[0017] Figure 2 This is a schematic diagram of the rear structure of the polarizer material removal and anti-drop device of the LCD attaching machine.

[0018] Figure 3 It is a partial structural diagram.

[0019] Figure 4 It is a schematic diagram of the installation structure of the movable plate, push plate and adjustment block.

[0020] Figure 5 This is a top view of the polarizer material removal and anti-drop device of the LCD attachment machine.

[0021] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle.

[0022] The marks in the accompanying drawings are: 10, back plate; 20, bottom plate; 30, conveying mechanism; 301, first cylinder; 302, slide plate; 303, first fixed plate; 304, second fixed plate; 305, movable plate; 306, adjusting rod; 307, slider; 40, limit block; 50, ejection mechanism; 501, second cylinder; 502, push plate; 503, adjusting block; 60, guide roller; 70, tape; 80, polarizer. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the technical solutions in the specific implementation methods of the present invention are clearly and completely described below to further illustrate the present invention. Obviously, the specific implementation methods described are only part of the implementation methods of the present invention, rather than all styles.

[0024] like Figures 1 to 5 As shown, the polarizer material removal and anti-dropping device of the LCD attachment machine includes a back plate 10, a bottom plate 20 is fixedly connected to the back plate 10, a conveying mechanism 30 is slidably connected to the bottom plate 20, and the conveying mechanism 30 includes a first cylinder 301, a slide plate 302, a first fixed plate 303, a second fixed plate 304, a movable plate 305 and an adjusting rod 306. The base of the first cylinder 301 is fixedly connected to the lower end of the bottom plate 20, and the slide plate 302 is slidably connected to the upper end of the bottom plate 20. The telescopic end of the first cylinder 301 is fixedly connected to the slide plate 302. The first cylinder 301 can drive the slide plate 302 to move left and right. The bottom end of the slide plate 302 is fixedly connected to a plurality of sliders 307, the bottom ends of several sliders 307 are in contact with the bottom plate 20, the slider 302 slides on the bottom plate 20 through the sliders 307, the first fixed plate 303 is fixedly connected to the front end of the slider 302, the second fixed plate 304 is fixedly connected to the rear end of the slider 302, the movable plate 305 can slide back and forth and is connected to the middle part of the slider 302, the polarizer 80 is placed between the first fixed plate 303 and the movable plate 305, the adjusting rod 306 passes through the first fixed plate 303, the movable plate 305 and the left side of the second fixed plate 304 in sequence, the adjusting rod 306 is threadedly connected to the movable plate 305, and the adjusting rod 306 is used to adjust the front and rear position of the movable plate 305.

[0025] The right ends of the first fixed plate 303 and the movable plate 305 are fixedly connected to the limiting block 40, and the two limiting blocks 40 are close to each other and have teeth (such as Figure 6 As shown), the two limit blocks 40 are close to each other at one end and are inclined, with a large spacing on the left side and a small spacing on the right side. The inclination angle of the inclined surface is preferably 15°.

[0026] The polarizer material removal and anti-dropping device of the LCD attaching machine also includes an ejection mechanism 50, which includes a second cylinder 501, a push plate 502 and an adjustment block 503. The base of the second cylinder 501 is fixedly connected to the rear side of the second fixed plate 304, and its telescopic end is fixedly connected to the push plate 502. The front end of the push plate 502 is fixedly connected to the two adjustment blocks 503.

[0027] A plurality of guide rollers 60 are also fixedly connected to the back plate 10 , and the guide rollers 60 are used to guide the adhesive tape 70 . The two guide rollers 60 on the right side of the conveying mechanism 30 limit the adhesive tape 70 there to a vertical state.

[0028] When using this device, first rotate the adjustment rod 306 to adjust the distance between the movable plate 305 and the first fixed plate 303 according to the current size of the polarizer 80, then adjust the positions of the two adjustment blocks 503 to ensure that the two adjustment blocks 503 are evenly distributed on the front and back sides of the polarizer 80, then place the polarizer 80 between the first fixed plate 303 and the movable plate 305, start the equipment, put the tape 70 in the conveying state, and drive the slide 302 to move right by the first cylinder 301, thereby driving the polarizer 80 to move right. After the rightmost polarizer 80 contacts the tape 70, it will be stuck to the tape 70 and sent to the next process, and then the first cylinder 301 drives the slide 302 to move left to prepare for the next attachment. Because the two stoppers 40 have inclined surfaces at their respective ends, the rightmost polarizer 80 bends slightly when it is attached to the tape 70. Combined with the teeth on the adjacent ends of the two stoppers 40, the polarizer 80 vibrates slightly, thereby eliminating the electrostatic attraction between the rightmost polarizer 80 and the next polarizer 80, preventing the next polarizer 80 from being dragged along with the rightmost polarizer 80. During this process, each time the tape 70 adheres to a polarizer 80, the second cylinder 501 extends to the right, ensuring that the polarizer 80 remains to the right of the slide 302 and that the polarizers 80 are continuously fed.

[0029] The above describes the main technical features and basic principles and related advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the concept or basic characteristics of the present invention. Therefore, from all perspectives, the above-mentioned specific embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.

[0030] In addition, it should be understood that although this specification is described according to various implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A polarizer material removal and anti-dropping device for LCD attaching machine, characterized in that: The invention comprises a back plate (10), a bottom plate (20) fixedly connected to the back plate (10), a conveying mechanism (30) slidably connected to the bottom plate (20), the conveying mechanism (30) comprising a first cylinder (301), a slide plate (302), a first fixed plate (303) and a movable plate (305), the base of the first cylinder (301) being fixedly connected to the lower end of the bottom plate (20), the slide plate (302) being slidably connected to the upper end of the bottom plate (20), the telescopic end of the first cylinder (301) being fixedly connected to the slide plate (302), the first fixed plate (303) being fixedly connected to the front end of the slide plate (302), the movable plate (305) being slidably connected to the middle part of the slide plate (302), the right ends of the first fixed plate (303) and the movable plate (305) being fixedly connected to a limiting block (40), and the polarizer (80) being placed between the first fixed plate (303) and the movable plate (305).

2. The polarizer material removal and anti-dropping device for LCD attaching machine according to claim 1, characterized in that: The two limiting blocks (40) are close to each other and have teeth at one end.

3. The polarizer material removal and anti-dropping device for LCD attaching machine according to claim 1, characterized in that: The two limit blocks (40) are close to each other at one end and are inclined, with a large spacing on the left side and a small spacing on the right side.

4. The polarizer material removal and anti-dropping device for LCD laminating machine according to claim 3, characterized in that: The inclined surfaces of the two limit blocks (40) close to one end thereof have an inclination angle of 15°.

5. The polarizer material removal and anti-dropping device for LCD laminating machine according to claim 1, characterized in that: The conveying mechanism (30) further includes a second fixed plate (304) and an adjusting rod (306). The second fixed plate (304) is fixedly connected to the rear end of the slide plate (302). The adjusting rod (306) sequentially passes through the first fixed plate (303), the movable plate (305) and the left side of the second fixed plate (304). The adjusting rod (306) is threadedly connected to the movable plate (305) for adjusting the front and rear position of the movable plate (305).

6. The polarizer material removal and anti-dropping device for LCD laminating machine according to claim 1, characterized in that: The bottom end of the slide plate (302) is fixedly connected with a plurality of sliders (307), the bottom ends of the plurality of sliders (307) are in contact with the bottom plate (20), and the slide plate (302) slides on the bottom plate (20) through the sliders (307).

7. The polarizer material removal and anti-dropping device for LCD attaching machine according to claim 5, characterized in that: The ejection mechanism (50) further comprises a second cylinder (501), a push plate (502) and an adjustment block (503). The base of the second cylinder (501) is fixedly connected to the rear side of the second fixed plate (304), the telescopic end of the second cylinder (501) is fixedly connected to the push plate (502), and the front end of the push plate (502) is fixedly connected to the two adjustment blocks (503).

8. The polarizer material removal and anti-dropping device for LCD laminating machine according to claim 1, characterized in that: A plurality of guide rollers (60) are also fixedly connected to the back plate (10), and the plurality of guide rollers (60) are used to guide the adhesive tape (70).

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