Film covering device for display screen production

Abstract

The utility model relates to the technical field of display screen production and processing, in particular to a laminating device for display screen production, which comprises a support frame, the top of the support frame is rotatably connected with a plurality of conveying rollers, the input end of one conveying roller is fixedly provided with a first motor, and the outer sides of the plurality of conveying rollers are sleeved with a conveying belt. A limiting mechanism is conveyed through a conveying belt so as to convey a display screen, the positions of the four corners of the display screen are limited through limiting blocks at the tops of a first limiting plate, a second limiting plate, a third limiting plate and a fourth limiting plate, and a spring is connected with a limiting piece so that a sliding strip can be kept perpendicular to a fixing plate all the time in the moving process; friction damage caused by position deviation of the display screen and direct contact between the display screen and conveyed parts is avoided, accurate film covering of the display screen is achieved, a second limiting plate drives a rack to move, the rack moves to drive a gear and a dust removal plate to rotate, dust on the turned dust removal plate is sucked into a dust suction hood through a fan to be discharged, and automatic cleaning of the dust removal plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen production and processing, in particular to a laminating device for display screen production. Background Art

[0002] A search of the patent document with publication number CN218749320U shows that the vehicle display screen is placed on a belt and limited by the friction of the belt. The motor is started to drive the belt to rotate, thereby moving the display screen. The cleaning cloth cleans the surface of the display screen, and the pressure roller applies the film to the display screen. The front pressure roller can easily stick the film to the vehicle display screen, and the rear pressure roller can squeeze out the air between the film and the display screen. Finally, a worker cuts off the multiple groups of films.

[0003] This patent document states that during the process of the belt limiting and conveying the display screen, the cleaning cloth will exert force on the display screen when it contacts the display screen to clean dust and the pressure roller will exert force on the display screen when it applies film to the display screen. However, the belt only exerts friction to limit the bottom of the display screen and cannot control the positional offset of the display screen caused by the force. The positional offset will lead to incomplete coating, and the direct friction of the belt on the display panel during transportation may cause scratches. The cleaning cloth needs to be replaced manually after cleaning the screen, which is very troublesome and delays the subsequent coating during replacement and cleaning. Utility Model Content

[0004] The purpose of the present utility model is to provide a laminating device for display screen production in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A laminating device for display screen production includes a support frame, a plurality of conveyor rollers rotatably connected to the top of the support frame, a first motor fixedly provided at the input end of one of the conveyor rollers, a conveyor belt sheathed around the outer sides of the plurality of conveyor rollers, a laminating mechanism provided above the conveyor belt, a limiting mechanism, and a cleaning mechanism;

[0007] The limiting mechanism includes two fixed plates, which are respectively fixed on both sides of the top of the support frame. A first limiting plate, a second limiting plate, a third limiting plate and a fourth limiting plate are provided on the top of the conveyor belt. The first limiting plate and the second limiting plate are fixedly connected to the other side of the first fixing rod, and one side of the third limiting plate and the fourth limiting plate are rotatably connected to the first rotating rod for adapting to display screens of different lengths. The first fixing rod is threadedly connected to the first rotating rod, and the rear sides of the second limiting plate and the fourth limiting plate are fixedly connected to the second fixing rod. The front sides of the first limiting plate and the third limiting plate are rotatably connected to the second rotating rod for adapting to display screens of different widths, and the second fixed rod is threadedly connected to the second rotating rod;

[0008] The cleaning mechanism includes a dust cleaning plate, a gear is fixed on the front side of the dust cleaning plate, a rack is plugged into the front side of the second limit plate, a dust collection cover is provided above the dust cleaning plate, and a fan is fixed in the dust collection cover.

[0009] Preferably: the laminating mechanism includes two support plates, between which a material roller and a pressure roller are rotatably connected, the pressure roller is located at the lower side of the material roller, a cylinder is provided on the other side of the material roller, a cutting knife is fixedly provided at the telescopic end of the cylinder, and a dust cleaning plate is rotatably connected to one side of the pressure roller.

[0010] Preferably: the first limiting plate and the third limiting plate are slidably connected to the fixed plate on the rear side, the second limiting plate and the fourth limiting plate are slidably connected to the fixed plate on the rear side, the first limiting plate, the second limiting plate, the third limiting plate and the fourth limiting plate are fixed with a sliding bar on one side close to the fixed plate, the sliding bar passes through one end of the fixed plate and is fixed with a spring, the end of the spring close to the fixed plate is fixedly connected to the limiting plate, the limiting plate is sleeved on the outside of the sliding bar, and a sliding groove cooperating with the sliding bar is opened in the middle of the fixed plate.

[0011] Preferably: the first rotating rod extends into the outer side of one end of the third limiting plate and the fourth limiting plate, and a limiting ring is fixed thereon; the third limiting plate and the fourth limiting plate are provided with limiting grooves that cooperate with the limiting ring; the second rotating rod extends into the outer side of one end of the first limiting plate and the third limiting plate, and a limiting ring is fixed thereon; the first limiting plate and the third limiting plate are provided with limiting grooves that cooperate with the limiting ring.

[0012] Preferably, a limiting block for limiting a corner of the display screen is fixed on the top of each of the first limiting plate, the second limiting plate, the third limiting plate and the fourth limiting plate, and the thickness of the limiting block is less than the thickness of the display screen.

[0013] Preferably, a clamping plate for inserting the second limiting plate is fixed to the bottom of the rack, and the front side of the rack is slidably connected to the rear side of one of the fixing plates.

[0014] The beneficial effects compared with the existing technology are as follows: the display screen is transported by the conveyor belt conveying limiting mechanism, and the four corners of the display screen are limited by the limiting blocks on the top of the first limiting plate, the second limiting plate, the third limiting plate and the fourth limiting plate. The limiting pieces are connected by springs so that the sliding bar can always remain perpendicular to the fixed plate during the movement, avoiding the position displacement of the display screen and friction damage caused by direct contact with the conveying parts, and realizing accurate lamination of the display screen. The rack is driven to move by the second limiting plate, and the movement of the rack drives the gear and the cleaning plate to rotate. The dust on the flipped cleaning plate is sucked into the dust collection hood and discharged by the fan, thereby realizing automatic cleaning of the cleaning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. 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 structural schematic diagram of a film laminating device for display screen production according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a laminating device for display screen production according to the present invention;

[0018] Figure 3 This is a schematic structural diagram of a laminating mechanism of a laminating device for display screen production according to the present invention;

[0019] Figure 4 This is a schematic structural diagram of a limiting mechanism of a laminating device for display screen production according to the present invention;

[0020] Figure 5 This is a schematic diagram of a cleaning mechanism of a laminating device for display screen production according to the present invention;

[0021] Figure 6 This is a schematic diagram of the rack structure of a laminating device for display screen production described in the utility model;

[0022] Figure 7 This is a partial structural diagram of a limiting mechanism of a laminating device for display screen production according to the present invention;

[0023] Figure 8 This is a schematic diagram of the coordination structure of the rack and the second limiting plate of a laminating device for display screen production described in the present invention;

[0024] Figure 9 It is a cross-sectional view of the cooperation between the first fixing rod and the first rotating rod of a laminating device for display screen production described in the utility model.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Support frame; 2. Conveyor roller; 3. Conveyor belt; 4. First motor; 5. Laminating mechanism; 6. Limiting mechanism; 7. Cleaning mechanism; 501. Support plate; 502. Material roller; 503. Pressing roller; 504. Second motor; 505. Cutting knife; 506. Cylinder; 601. Fixed plate; 602. First limiting plate; 603. Second limiting plate; 604. Third limiting plate; 605. Fourth limiting plate; 606. First fixed rod; 607. First rotating rod; 608. Second fixed rod; 609. Second rotating rod; 701. Cleaning plate; 702. Gear; 703. Rack; 704. Dust hood; 705. Fan. DETAILED DESCRIPTION

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] like Figures 1-9 As shown, a laminating device for display screen production includes a support frame 1, a plurality of conveying rollers 2 are rotatably connected to the top of the support frame 1, a first motor 4 is fixedly provided on the input end of one of the conveying rollers 2, a conveyor belt 3 is provided on the outside of the plurality of conveying rollers 2, a laminating mechanism 5 is provided above the conveyor belt 3, and also includes a limiting mechanism 6 and a cleaning mechanism 7.

[0030] In this embodiment: the laminating mechanism 5 includes two support plates 501, and a material roller 502 and a pressure roller 503 are rotatably connected between the two support plates 501. The pressure roller 503 is located on the lower side of the material roller 502, and a cylinder 506 is provided on the other side of the material roller 502. A cutting knife 505 is fixedly provided at the telescopic end of the cylinder 506. The film is put on the material roller 502 and the film is discharged. The pressure roller 503 is driven to rotate by the second motor 504 to pull the film on the material roller 502 to the surface of the display screen, and the cutting knife 505 is driven by the cylinder 506 to move downward in the vertical direction to cut the film connected to the display screen after lamination.

[0031] In this embodiment: the limiting mechanism 6 includes two fixed plates 601, and the two fixed plates 601 are respectively fixed on both sides of the top of the support frame 1. The top of the conveyor belt 3 is provided with a first limiting plate 602, a second limiting plate 603, a third limiting plate 604 and a fourth limiting plate 605. The first limiting plate 602 and the second limiting plate 603 are fixedly connected to the other side of the first fixing rod 606, and the third limiting plate 604 and the fourth limiting plate 605 are rotatably connected to one side with a first rotating rod 607 for adapting to display screens of different lengths. The first fixing rod 606 is threadedly connected to the first rotating rod 607, and the rear sides of the second limiting plate 603 and the fourth limiting plate 605 are fixedly connected to the second fixing rod 608. The first limiting plate 602 and the third limiting plate The front side of 604 is rotatably connected with a second rotating rod 609 for adapting to display screens of different widths, the second fixed rod 608 is threadedly connected to the second rotating rod 609, the first limiting plate 602 and the third limiting plate 604 are slidably connected to the fixed plate 601 on the rear side, the second limiting plate 603 and the fourth limiting plate 605 are slidably connected to the fixed plate 601 on the rear side, the first limiting plate 602, the second limiting plate 603, the third limiting plate 604 and the fourth limiting plate 605 are fixed with a sliding bar on the side close to the fixed plate 601, the sliding bar passes through one end of the fixed plate 601 and is fixed with a spring, the end of the spring close to the fixed plate 601 is fixedly connected to a limiting piece, the limiting piece is sleeved on the outside of the sliding bar, and the middle part of the fixed plate 601 is provided with a sliding bar. The first rotating rod 607 extends into the outer side of one end of the third limiting plate 604 and the fourth limiting plate 605 to fix the limiting ring, and the third limiting plate 604 and the fourth limiting plate 605 are provided with a limiting groove that cooperates with the limiting ring. The second rotating rod 609 extends into the outer side of one end of the first limiting plate 602 and the third limiting plate 604 to fix the limiting ring, and the first limiting plate 602 and the third limiting plate 604 are provided with a limiting groove that cooperates with the limiting ring. The tops of the first limiting plate 602, the second limiting plate 603, the third limiting plate 604 and the fourth limiting plate 605 are all fixed with a limiting block for limiting a corner of the display screen. The thickness of the limiting block is lower than the thickness of the display screen, and the position relative to the first fixed rod 606 is adjusted by rotating the first rotating rod 607. The matching distance can be used to adjust the distance between the first limiting plate 602 and the third limiting plate 604, and the distance between the second limiting plate 603 and the fourth limiting plate 605. The matching distance with the second fixed rod 608 can be adjusted by rotating the second rotating rod 609, and the distance between the first limiting plate 602 and the second limiting plate 603, and the distance between the third limiting plate 604 and the fourth limiting plate 605 can be adjusted. The four corners of the display screen are limited by the limiting blocks on the top of the first limiting plate 602, the second limiting plate 603, the third limiting plate 604 and the fourth limiting plate 605. The first limiting plate 602, the third limiting plate 604 and the fourth limiting plate 605 are prevented from separating by the matching limiting rings on the outer sides of the first rotating rod 607 and the second rotating rod 609 and the limiting grooves.The first and third limiting plates 602, 604, and the second and fourth limiting plates 603, 605 are limited by sliding the sliding bar along both sides in the sliding groove. The limiting plates are connected by springs so that the sliding bar can always remain perpendicular to the fixed plate 601 during the movement.

[0032] In this embodiment: the cleaning mechanism 7 includes a cleaning plate 701, a gear 702 is fixed on the front side of the cleaning plate 701, a rack 703 is plugged into the front side of the second limiting plate 603, a dust hood 704 is provided above the cleaning plate 701, a fan 705 is fixedly provided in the dust hood 704, a card plate for plugging the second limiting plate 603 is fixed to the bottom of the rack 703, the front side of the rack 703 is slidably connected to the rear side of one of the fixed plates 601, the dust on the surface of the display screen is removed by the cleaning plate 701, the rack 703 is driven to move by the second limiting plate 603, the movement of the rack 703 drives the gear 702 and the cleaning plate 701 to rotate, and the dust on the flipped cleaning plate 701 is sucked into the dust hood 704 by the fan 705 and discharged.

[0033] Working principle: According to the length of the display screen, the first rotating rod 607 is rotated to adjust the matching distance with the first fixed rod 606, and then the distance between the first limiting plate 602 and the third limiting plate 604, and the distance between the second limiting plate 603 and the fourth limiting plate 605 is adjusted. According to the width of the display screen, the second rotating rod 609 is rotated to adjust the matching distance with the second fixed rod 608, and then the distance between the first limiting plate 602 and the second limiting plate 603, and the distance between the third limiting plate 604 and the fourth limiting plate 605 is adjusted. During the adjustment process, the limiting rings on the outer sides of the first rotating rod 607 and the second rotating rod 609 cooperate with the limiting grooves to make the first limiting plate 602, the third limiting plate 604 and the fourth limiting plate 605 The limiting plate 604 and the fourth limiting plate 605 do not separate, and the display screen is placed in the rectangle formed by the limiting blocks on the top of the first limiting plate 602, the second limiting plate 603, the third limiting plate 604 and the fourth limiting plate 605, and the four corners of the display screen are limited to the position. The first motor 4 is started to drive the conveyor roller 2 to drive the conveyor belt 3 to rotate clockwise, and then the limiting mechanism 6 and the display are transported. During the transportation process, the sliding bars of the first limiting plate 602, the second limiting plate 603, the third limiting plate 604 and the fourth limiting plate 605 slide from one side to the other side in the sliding groove of the fixed plate 601, and the spring connected to the limiting piece ensures that the sliding bar can always be kept in the process of movement. The second limiting plate 603 drives the rack 703 to slide along the fixed plate 601, and the film is mounted on the material roller 502. The dust-cleaning plate 701 removes the dust on the surface of the display. The second motor 504 drives the pressing roller 503 to rotate and pulls the film on the material roller 502 to the surface of the display. The cylinder 506 drives the cutting knife 505 to move downward in the vertical direction to cut the connection film of the display after the film is coated. The display screen on the first set of limiting mechanisms 6 is coated first, and then the second set of limiting mechanisms 6 is coated. When the second limiting plate 603 in the second set of limiting mechanisms 6 passes the dust-cleaning plate 701, the second limiting plate 603 is plugged in. The rack 703 drives the gear 702 to rotate counterclockwise, thereby driving the dust cleaning plate 701 to flip 180° counterclockwise, and the fan 705 sucks the dust on the flipped dust cleaning plate 701 into the dust collection hood 704 and discharges it, and takes out the display screens that have been coated on the two sets of limiting mechanisms 6. The first motor 4 drives the conveyor roller 2 to drive the conveyor belt 3 to rotate counterclockwise, so that the two sets of limiting mechanisms 6 are reset and then the display screens that need to be coated are reinstalled. When the second set of limiting mechanisms 6 moves from the other side to one side, the rack 703 inserted on the second limiting plate 603 drives the gear 702 to rotate clockwise, thereby driving the dust cleaning plate 701 to flip 180° clockwise and reset.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A laminating device for display screen production, comprising a support frame (1), wherein a plurality of conveying rollers (2) are rotatably connected to the top of the support frame (1), wherein a first motor (4) is fixedly provided at the input end of one of the conveying rollers (2), a conveyor belt (3) is sleeved on the outside of the plurality of conveying rollers (2), and a laminating mechanism (5) is provided above the conveyor belt (3), characterized in that: It also includes a limiting mechanism (6) and a cleaning mechanism (7); The limiting mechanism (6) comprises two fixed plates (601), the two fixed plates (601) are respectively fixed to both sides of the top of the support frame (1), the top of the conveyor belt (3) is provided with a first limiting plate (602), a second limiting plate (603), a third limiting plate (604) and a fourth limiting plate (605), the other side of the first limiting plate (602) and the second limiting plate (603) are fixedly connected to a first fixing rod (606), and one side of the third limiting plate (604) and the fourth limiting plate (605) are both rotatably connected to the first limiting plate (606). A first rotating rod (607) is connected to the first fixed rod (606) and the first rotating rod (607) is threadedly connected. The rear sides of the second limiting plate (603) and the fourth limiting plate (605) are fixedly connected to the second fixed rod (608). The front sides of the first limiting plate (602) and the third limiting plate (604) are rotatably connected to the second rotating rod (609) and the second fixed rod (608) is threadedly connected to the second rotating rod (609). The cleaning mechanism (7) includes a dust cleaning plate (701), a gear (702) is fixed on the front side of the dust cleaning plate (701), a rack (703) is plugged into the front side of the second limiting plate (603), a dust collection hood (704) is provided above the dust cleaning plate (701), and a fan (705) is fixedly provided inside the dust collection hood (704).

2. A laminating device for display screen production according to claim 1, characterized in that: The laminating mechanism (5) includes two support plates (501), and a material roller (502) and a pressure roller (503) are rotatably connected between the two support plates (501). The pressure roller (503) is located on the lower side of the material roller (502). A cylinder (506) is provided on the other side of the material roller (502). A cutting knife (505) is fixedly provided at the telescopic end of the cylinder (506). The cleaning plate (701) is rotatably connected to one side of the pressure roller (503).

3. The laminating device for display screen production according to claim 1, characterized in that: The first limiting plate (602) and the third limiting plate (604) are slidably connected to the fixed plate (601) on the rear side, and the second limiting plate (603) and the fourth limiting plate (605) are slidably connected to the fixed plate (601) on the rear side. A sliding bar is fixed on one side of the first limiting plate (602), the second limiting plate (603), the third limiting plate (604) and the fourth limiting plate (605) close to the fixed plate (601). A spring is fixed at one end of the sliding bar passing through the fixed plate (601). The end of the spring close to the fixed plate (601) is fixedly connected to a limiting plate. The limiting plate is sleeved on the outside of the sliding bar. A sliding groove cooperating with the sliding bar is opened in the middle of the fixed plate (601).

4. The laminating device for display screen production according to claim 1, characterized in that: The first rotating rod (607) extends into the outer side of one end of the third limiting plate (604) and the fourth limiting plate (605), and a limiting ring is fixed thereon; the third limiting plate (604) and the fourth limiting plate (605) are provided with a limiting groove that cooperates with the limiting ring; the second rotating rod (609) extends into the outer side of one end of the first limiting plate (602) and the third limiting plate (604), and a limiting ring is fixed thereon; the first limiting plate (602) and the third limiting plate (604) are provided with a limiting groove that cooperates with the limiting ring.

5. The laminating device for display screen production according to claim 1, characterized in that: A limiting block for limiting a corner of the display screen is fixed on the top of each of the first limiting plate (602), the second limiting plate (603), the third limiting plate (604) and the fourth limiting plate (605), and the thickness of the limiting block is less than the thickness of the display screen.

6. The laminating device for display screen production according to claim 1, characterized in that: A clamping plate for plugging the second limiting plate (603) is fixed to the bottom of the rack (703), and the front side of the rack (703) is slidably connected to the rear side of one of the fixing plates (601).

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