Automatic film laminating device for light guide plate

Abstract

The utility model relates to the technical field of light guide plate production and processing, in particular to an automatic film laminating device for a light guide plate, which comprises a processing table, a conveying device arranged at the top of the processing table, and a film placing unit and a film pressing unit arranged above the conveying device, guide units are further arranged on the side faces, located at the two ends of the conveying device, of the top of the machining table and used for guiding the light guide plate. Wherein the guide unit comprises mounting frames, the mounting frames are in sliding connection with the machining table through a distance adjusting assembly, guide wheels are detachably connected to the opposite sides of the pair of mounting frames, and a fixing part is fixed and unlocked in a manner of pulling and inserting a stopping part; the teeth abut against the guide pieces to fix the mounting frames on the two sides, after the fixing pieces are unlocked, the positions of the mounting frames are better judged through the pause feeling generated by abutting sliding, and the guide wheels are convenient to replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to light guide plate production and processing technical field especially relates to a light guide plate automatic laminating device. BACKGROUND

[0002] Light guide plate is a kind of optical element, mainly used to guide and distribute light, it is widely used in liquid crystal display (LCD) backlight module, lighting equipment, advertising light box, the indicator light of electronic product etc., the main function of light guide plate is that light emitted by light source is evenly distributed, to improve display effect or lighting effect.

[0003] In the processing process of light guide plate, the microstructure on the surface of light guide plate can be protected from damage by laminating, prevent the attachment of dust, oil stains and other pollutants, reduce the abrasion in daily use, such as prior art Chinese patent announcement number "CN212242139U" discloses a kind of continuous laminating device of light guide plate, including transmission positioning rack, laminating frame, transmission positioning rack and laminating frame are sequentially connected, transmission positioning rack both sides are equipped with side pressing plate, side pressing plate can be clamped and positioned and transmission to both sides of light guide plate in the process of transmission, the support frame of laminating frame is equipped with cutter and two pressure roller adjusting mechanisms below, two pressure roller adjusting mechanisms are placed oppositely, the connecting rod of two pressure roller adjusting mechanisms is connected on the upper and lower two adjusting grooves on support frame, and there is a tension spring connection between two connecting rods, cutter is controlled by air cylinder, light guide plate is transmitted through transmission positioning rack, and then enters the pressure roller between the upper and lower two pressure roller adjusting mechanisms of laminating frame to carry out laminating, the laminated light guide plate exits from the rear part of laminating frame, and the film is quickly cut off by cutter.The utility model can realize laminating from both sides for light guide plate, after laminating, cutter is very convenient to cut film, which is beneficial to the rapid continuous laminating of light guide plate, and improves laminating efficiency.

[0004] In specific operation, the light guide plate is guided by setting multiple pulleys and transported by cooperating with the conveying platform, but the pulley and the side pressing plate cannot be disassembled and replaced, which is inconvenient to disassemble and replace the pulley after long-term use, prolongs downtime and has poor practicability. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the above-mentioned shortcomings that the pulley and the side pressing plate cannot be disassembled and replaced in the prior art, and provides a kind of light guide plate automatic laminating device.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model discloses a kind of automatic film covering devices of light guide plate, including processing table, conveying device is provided on the top of the processing table, film placing unit and film pressing unit are provided above the conveying device, the top of the processing table is also provided with guide unit on the side of both ends of the conveying device, the guide unit is used to guide light guide plate;

[0008] Wherein, the guide unit includes a mounting bracket, the mounting bracket is slidably connected to the processing table by a spacing adjustment assembly, and a guide wheel is detachably connected to the opposite side of the pair of mounting brackets.

[0009] Further, the spacing adjustment assembly includes a guide slot, the bottom of the processing table is provided with a pair of guide slots, and a guide rod is fixedly connected to one of the guide slots at the bottom thereof, and a bent piece is fixedly connected to the other guide slot at the bottom thereof. The mounting bracket is slidably connected in the guide slot through the guide portions on both sides of the bottom.

[0010] Further, the bent piece is in U-shaped structure, and the inside of both ends thereof is provided with a fixing piece, the middle end of the fixing piece is bent to form a rack structure, one of the guide portions is slidably connected to the guide rod, and the free end of the other guide portion is provided with a guide slope on both sides thereof. The free end of the guide portion is engaged with the toothed portion of the fixing piece, and the free end thereof is also in contact with the fixing piece through the guide slope and slides.

[0011] Further, the fixing piece is fixedly connected with a fixed rod on both sides of the bottom thereof, the fixed rod is slidably connected with the bent piece through a compression spring peripherally sleeved, a stop piece is inserted into the limiting slot on both sides of the free end of the fixed rod, the stop piece is provided with an avoidance slope on the side close to the fixed rod, and the stop piece is in contact with the inner side of the bent piece.

[0012] Further, the guide wheel is rotatably connected with a connecting rod at the midpoint thereof, the free end of the connecting rod is fixedly connected with a baffle, and at least one positioning glass bead is embedded above the baffle.

[0013] Further, the mounting bracket is in Z-shaped structure, and the connecting rod is inserted through the mounting hole on the top of the mounting bracket.

[0014] The utility model provides a light guide plate automatic laminating device has beneficial effect at in: the utility model discloses the fixed part is fixed and is unlocked to the fixed part through the mode of pull -out stop piece, when the fixed part is fixed, the both sides mounting frame are fixed through the tooth resistance to guide piece, the light guide plate of different width is guided using the mode of interval adjustment, prevent the light guide plate from shifting and slipping when conveying, and after the fixed part is unlocked, the guide portion is through the guide inclined plane and the tooth resistance and slides, and the position of mounting frame is adjusted better through the stop feeling of resistance and sliding, so that the effect of multi -gear adjustment is reached, in addition, the guide wheel can be disassembled quickly after long -time use, reduces the downtime time and has strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model;

[0016] Figure 2 It is the structure schematic diagram of the utility model bending piece;

[0017] Figure 3 It is the sectional view of interval adjustment subassembly of the utility model;

[0018] Figure 4 It is Figure 3 The enlarged structure schematic diagram of A area of

[0019] Figure 5 It is the structure schematic diagram of stop piece of the utility model.

[0020] Figure 6 It is Figure 5 The enlarged structure schematic diagram of B area of

[0021] Figure 7 It is the structure schematic diagram of guide groove of the utility model.

[0022] In the drawing: 1, processing table; 2, conveying device; 3, film placing unit; 4, film pressing unit; 5, guide unit; 51, mounting frame; 511, guide portion; 52, guide wheel; 521, connecting rod; 522, baffle; 523, positioning glass bead; 6, interval adjustment subassembly; 61, guide groove; 62, guide rod; 63, bending piece; 64, fixed part; 65, fixed rod; 651, limit groove; 66, compression spring; 67, stop piece; 671, avoidance inclined groove. DETAILED DESCRIPTION

[0023] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings of the utility model embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Refer to Figures 1-7The utility model provides an automatic film covering device of light guide plate, including processing table 1, be provided with conveying device 2 on the top of processing table 1, be provided with film placing unit 3 and film pressing unit 4 above conveying device 2, the top of processing table 1 is located the side of both ends of conveying device 2 still be provided with guide unit 5, and guide unit 5 is used to guide light guide plate,

[0025] Wherein, the guide unit 5 includes mounting bracket 51, the mounting bracket 51 is slidably connected with the processing table 1 through the spacing adjustment assembly 6, and a pair of mounting brackets 51 are detachably connected with guide wheels 52 on the opposite sides.

[0026] Need to be added, the conveying device 2 includes a conveyor belt, and the top of the processing table 1 is provided with a conveyor belt through a roller, and the conveyor belt is driven to rotate by a motor fixedly installed on the top side and one of the rollers.

[0027] Wherein, film placing unit 3 cooperates with film pressing unit 4, which are components of the existing film covering machine, and are used for film placing and film pressing, and the film pressing unit 4 further includes a film cutting assembly driven by a driving member to reciprocally move a cutter to cut the film.

[0028] Further, the spacing adjustment assembly 6 includes a guide groove 61, and the bottom of the processing table 1 is provided with a pair of guide grooves 61, and a guide rod 62 is fixedly connected to one of the guide grooves 61, and a bending member 63 is fixedly connected to the other guide groove 61, and the mounting bracket 51 is slidably connected in the guide groove 61 through the guide portions 511 on both sides of the bottom.

[0029] Further, the bending member 63 has a U-shaped structure, and the inside ends of the bending member 63 are provided with fixing members 64, the middle end of the fixing member 64 is bent to form a rack structure, one of the guide portions 511 is slidably connected with the guide rod 62, and the free ends of the other guide portions 511 are provided with guide inclined surfaces, the free ends of the guide portions 511 are engaged with the toothed portions of the fixing members 64, and the free ends of the guide portions 511 are in contact with the fixing members 64 through the guide inclined surfaces and slide.

[0030] In more detail, the fixing members 64 are fixedly connected with fixing rods 65 on both sides of the bottom, the fixing rods 65 are slidably connected with the bending member 63 through the surrounding spring 66, and the stop members 67 are inserted into the limiting grooves 651 on both sides of the free ends of the fixing rods 65, the stop members 67 are provided with avoiding inclined surfaces 671 near one side of the fixing rods 65, and the stop members 67 are in contact with the inner sides of the bending member 63.

[0031] It is worth mentioning that the side of the stop piece 67 is inwardly recessed to form a clearance slot, the stop piece 67 is inserted into the limiting slot 651 through the clearance slot, and is stopped in the bending piece 63 after insertion, wherein the two ends of the compression spring 66 are respectively in contact with the bottom surface of the fixing piece 64 and the top surface of the stop piece 67, the end of the compression spring 66 is in contact with and slidingly connected with the stop piece 67 through the clearance slope 671 when the stop piece 67 is inserted, and the compression force of the compression spring 66 prevents the stop piece 67 from moving randomly, of course, the end of the stop piece 67 away from the clearance slot is arranged on the periphery of the bending piece 63, so that the stop piece 67 is convenient to insert and pull out;

[0032] In the embodiment, the fixing rods 65 on both sides of the top of the processing table 1 are simultaneously stopped by the stop piece 67, the fixing piece 64 stops and supports the guide part 511 to prevent the mounting frame 51 from moving, and the spacing between the two mounting frames 51 is adjusted,

[0033] Of course, after the fixing rods 65 are unlocked, the guide part 511 is in contact with and slides with the fixing piece 64 through the guide slope of the free end, and the stop feeling generated by the contact can better adjust the position of the mounting frame 51.

[0034] In general, the guide wheel 52 is rotationally connected to a connecting rod 521 at the midpoint, the free end of the connecting rod 521 is fixedly connected to a baffle 522, and at least one positioning glass bead 523 is embedded above the baffle 522.

[0035] Finally, the mounting frame 51 has a Z-shaped structure, and the connecting rod 521 is arranged on the top of the mounting frame 51 through the mounting hole, wherein the telescopic column end of the positioning glass bead 523 and the baffle 522 are respectively in contact with the top and the bottom of the mounting frame 51.

[0036] It should be noted that the top of the connecting rod 521 has a rectangular structure, the connecting rod 521 is circumferentially locked by being inserted into the mounting frame 51 through the rectangular rod, the guide wheel 52 idles to increase the wear of the connecting rod 521, and wherein the telescopic column end of the positioning glass bead 523 is retracted after being pressed, and then the guide wheel 52 can be taken out.

[0037] Working mode; during work, the spacing between the two mounting frames 51 is adjusted according to the actual width of the light guide plate to be coated, and the specific operation is as follows:

[0038] After the stop piece 67 is pulled out to unlock the fixing rods 65, the fixing rods 65 cooperate with the compression spring 66 to make the fixing piece 64 slide up and down, then the mounting frame 51 is pushed to move under the action of the guide part 511, when the mounting frame 51 moves, one of the guide parts 511 is in contact with and slides with the toothed part of the fixing piece 64 through the guide slope of the free end, and the position of the mounting frame 51 is adjusted by the stop feeling generated by the contact.

[0039] After the position is determined, the stopper 67 is inserted into the limiting slot 651 through the position slot, and is stopped in the bending piece 63, the fixed rod 65 is fixed after being stopped, the fixed piece 64 is fixed to the mounting frame 51 through the fixed guide part 511, and the interval adjustment of traditional Chinese medicine is achieved;

[0040] Finally, when the guide wheel 52 needs to be disassembled for long time use, the telescopic column end of the positioning glass bead 523 is pressed to be retracted, so that the connecting rod 521 is taken out together with the guide wheel 52.

[0041] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A light guide plate automatic laminating device, comprising a processing table (1), characterized in that: The top of the processing table (1) is provided with a conveying device (2), a film placing unit (3) and a film pressing unit (4) are arranged above the conveying device (2), and a guide unit (5) is further arranged on the side of the top of the processing table (1) at both ends of the conveying device (2), which is used for guiding the light guide plate. The guide unit (5) comprises a mounting frame (51), the mounting frame (51) and the processing table (1) are connected through a spacing adjusting assembly (6), and a guide wheel (52) is detachably connected to the opposite side of a pair of mounting frames (51).

2. The automatic film coating device for light guide plates according to claim 1, characterized by: The spacing adjusting assembly (6) comprises a guide groove (61), the bottom of the processing table (1) is provided with a pair of guide grooves (61), one end of the guide groove (61) is fixedly connected with a guide rod (62), and the other end of the guide groove (61) is fixedly connected with a bending piece (63), and the mounting frame (51) is slidably connected in the guide groove (61) through guide portions (511) on both sides of the bottom.

3. The automatic film coating device for light guide plates according to claim 2, characterized by: The bending piece (63) is in a U-shaped structure, and the two ends of the inside of the bending piece (63) are provided with fixing pieces (64), the middle end of the fixing piece (64) is bent into a rack structure, one of the guide portions (511) is slidably connected with the guide rod (62), the other end of the guide portion (511) is provided with a guide inclined surface on both sides, the free end of the guide portion (511) is clamped with the toothed portion of the fixing piece (64), and the free end is also in contact with the fixing piece (64) through the guide inclined surface and slides.

4. The automatic film coating device for light guide plates according to claim 3, characterized by: The bottom of the fixing piece (64) is fixedly connected with a fixing rod (65), the fixing rod (65) is slidably connected with the bending piece (63) through a surrounding spring (66), a stop piece (67) is inserted into the limiting groove (651) on both sides of the free end of the fixing rod (65), the stop piece (67) is provided with an avoiding inclined surface (671) close to one side of the fixing rod (65), and the stop piece (67) is in contact with the inner side of the bending piece (63).

5. The automatic film coating device for light guide plates according to claim 1, characterized by: The guide wheel (52) is rotatably connected with a connecting rod (521) at the midpoint, the free end of the connecting rod (521) is fixedly connected with a baffle (522), and at least one positioning glass bead (523) is embedded above the baffle (522).

6. The automatic film coating device for light guide plates according to claim 5, characterized by: The mounting frame (51) is in a Z-shaped structure, and the connecting rod (521) is arranged in the mounting hole in the top of the mounting frame (51), wherein the telescopic column end of the positioning glass bead (523) and the baffle (522) are respectively in contact with the top and the bottom of the mounting frame (51).

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