Winding device for diffusion film production

Abstract

The winding device for diffusion film production comprises a dust removal mechanism and a winding mechanism which are arranged in a box body, the dust removal mechanism comprises a box body arranged in the box body, the opening end of the box body is arranged in the direction of the winding mechanism, and electrostatic adsorption plates are obliquely arranged on the upper side and the lower side of the opening of the box body; two groups of cylinders are arranged in the box body side by side up and down, a ventilation channel connected with an exhaust fan I through an air inlet pipe is arranged in the side wall of each cylinder, a strip-shaped opening communicated with the ventilation channel is axially formed in the outer wall of each cylinder, the cylinder is further sleeved with a net cylinder, flexible bristles are radially arranged on the outer wall of each net cylinder, and the outer wall of each net cylinder is sleeved with a brush head. A fluted disc is further arranged at one end of the net cylinder, a gear meshed with the fluted disc and driven by a motor I is arranged on the fluted disc, dust collecting covers are arranged on the upper side and the lower side in the box body at the upstream position of the net cylinder respectively, and the dust collecting covers are connected with an exhaust fan II through pipelines. Dust can be collected when the diffusion film is rolled, and the situation that the product quality is affected due to flying dust attachment is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of winding equipment, in particular to a winding device for diffusion film production. BACKGROUND

[0002] Diffusion film mainly refers to the backlight part applied to the LCD module. Light transmits through the diffusion layer with PET as the base material, and passes through the medium with different refractive indexes, so that the light undergoes many refraction, reflection and scattering phenomena, which can correct the light into a uniform surface light source to achieve the effect of optical diffusion, and the diffusion film needs to be wound for storage after production.

[0003] Among them, patent number CN218114433U discloses a diffusion film winding device for liquid crystal display screen processing and production, which can prevent the diffusion film from being offset during use, and can prevent the diffusion film from being damaged and affecting the winding progress during winding. However, dust in the working environment during production may still adhere to the diffusion film during actual winding, affecting the quality of the wound product. SUMMARY

[0004] The purpose of the present application is to provide a winding device for diffusion film production.

[0005] The technical problem of the present application is mainly solved by the following technical scheme:

[0006] A winding device for diffusion film production, comprising a dust removal mechanism and a winding mechanism arranged in a box, the dust removal mechanism comprising a box arranged in the box, the box opening end being arranged towards the winding mechanism, the box opening being inclinedly provided with an electrostatic adsorption plate on the upper and lower sides, two groups of cylinders being arranged in parallel in the box, a ventilation channel being arranged in the side wall of the cylinder and connected with an air extractor I through an air inlet pipe, a strip-shaped opening being arranged on the outer wall of the cylinder in an axial direction and communicated with the ventilation channel, a net cylinder being further sleeved on the cylinder, flexible bristles being radially arranged on the outer wall of the net cylinder, a toothed disc being further arranged at one end of the net cylinder, a gear being arranged on the toothed disc and driven by a motor I, dust collecting hoods being respectively arranged on the upper and lower sides in the box upstream of the net cylinder, the dust collecting hoods being connected with an air extractor II through a pipeline.

[0007] Preferably, a flat feed pipe is arranged on one side wall of the box and extends into the box body opening, an inlet and outlet for the winding mechanism is arranged on the other side wall of the box, a support seat is arranged in the box and passes through the inlet and outlet, a sliding groove is arranged on the top of the support seat along the length direction, a strip-shaped seat extending to the outside of the box is arranged in the sliding groove in the box, a cover plate sealing the inlet and outlet is arranged at the top end of the strip-shaped seat, a screw rod passing through the screw hole in the strip-shaped seat is further arranged in the sliding groove, the screw rod is driven by the motor II, the winding mechanism comprises a base fixed on the top of the strip-shaped seat, a fixed seat for fixing the motor III is arranged on one side of the top of the base, a rotating shaft connected with the output shaft of the motor III is arranged on the fixed seat, a movable seat for fixing the end of the rotating shaft is further arranged on the other side of the top of the base, the movable seat is fixed on the base through bolts, a circular hole corresponding to the rotating shaft is formed in the movable seat, and a bearing for the end of the rotating shaft to pass through is arranged in the circular hole.

[0008] Preferably, the base is arranged on the strip-shaped seat, and the top end of the strip-shaped seat is flush with the top end surface of the support seat.

[0009] Preferably, two groups of guide rollers are arranged in parallel on the box body and in the box body downstream of the box body.

[0010] Preferably, the two groups of electrostatic adsorption plates form a splay-shaped structure buckled on the opening end of the box body, the ends of the electrostatic adsorption plates on the upper and lower sides of the box body are movably connected with the inner wall of the box through rotating shafts, and the outer side of the other end of the electrostatic adsorption plate is provided with a magnetic limiting rod for limiting the electrostatic adsorption plate.

[0011] Preferably, the upper strip-shaped opening is arranged to be inclined downward toward the upstream of the cylinder, and the lower strip-shaped opening is arranged to be inclined upward toward the upstream of the cylinder.

[0012] Preferably, the end of the cylinder extends to the outside of the box, the box body is fixedly connected with the inner wall of the box, and the motor I is arranged on the outside of the box.

[0013] The present application has the advantages that: the present application plays a cleaning role on the dust adhered to the upper and lower end faces of the diffusion film through the rotation of the flexible brush and the blowing of the gas, the dust is extracted through the dust collecting cover and the pipeline, and the residual dust on the brush is cleaned through the electrostatic adsorption plate, so that a multi-stage cleaning effect on the dust on the upper and lower end faces of the diffusion film is achieved, and the cleaned diffusion film is wound in the closed box, so that the probability of dust adhering to the diffusion film is further reduced, and the quality of the diffusion film is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the present application;

[0015] Figure 2 is a sectional view of the present application;

[0016] Figure 3 is a sectional view of the present application in the direction of the top view of the cylinder;

[0017] Figure 4 is a top view of the winding mechanism in the present application.

[0018] In the figure: 1, box, 2, dust removal mechanism, 21, box, 22, electrostatic adsorption plate, 23, cylinder, 24, ventilation channel, 25, air inlet pipe, 26, strip-shaped opening, 27, mesh tube, 28, flexible brush, 29, gear disc, 210, gear, 211, motor I, 212, dust collector, 213, pipeline, 3, winding mechanism, 31, base, 32, fixed seat, 33, motor III, 34, rotating shaft, 35, movable seat, 4, feeding pipe, 5, inlet and outlet, 6, support seat, 7, chute, 8, strip-shaped seat, 9, lead screw, 10, motor II, 11, cover plate, 12, guide roller, 13, rotating shaft, 14, limiting rod. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be further specifically described below by examples in combination with the drawings.

[0020] A winding device for producing a diffusion film, comprising a dust removal mechanism 2 and a winding mechanism 3 arranged in a box 1, the dust removal mechanism 2 comprises a box 21 arranged in the box 1, the opening end of the box 21 is arranged towards the direction of the winding mechanism 3, and the opening of the box 21 is arranged with electrostatic adsorption plates 22 on the upper and lower sides, and two groups of cylinders 23 are arranged in parallel in the box 21, a ventilation channel 24 connected with an air extractor I is arranged in the side wall of the cylinder 23, a strip-shaped opening 26 communicating with the ventilation channel 24 is arranged axially on the outer wall of the cylinder 23, and specifically as shown in Figure 2 the upper strip-shaped opening 26 is arranged obliquely downward towards the upstream of the cylinder 23, and the lower strip-shaped opening 26 is arranged obliquely upward towards the upstream of the cylinder 23, a mesh tube 27 is further arranged on the cylinder 23, flexible brush 28 is radially arranged on the outer wall of the mesh tube 27, a gear disc 29 is further arranged at one end of the mesh tube 27, a gear 210 meshing with the gear disc 29 and driven by a motor I 211 is arranged on the gear disc 29, dust collectors 212 are respectively arranged on the upper and lower sides in the box 21 at the upstream of the mesh tube 27, and the dust collectors 212 are connected with an air extractor II through a pipeline 213.

[0021] The box 1 one side wall is provided with a flat feed pipe 4 extending to the opening of the box body 21, the other side wall of the box 1 is provided with an inlet and outlet 5 for the winding mechanism 3 to enter and exit, the box 1 is provided with a support seat 6 passing through the inlet and outlet 5, the support seat 6 top is provided with a chute 7 along the length direction, the chute 7 in the box 1 is provided with a strip-shaped seat 8 extending to the outside of the box 1, the top end of the strip-shaped seat 8 is flush with the top end face of the support seat 6, the top end of the strip-shaped seat 8 is provided with a cover plate 11 sealing the inlet and outlet, the chute 7 is further provided with a lead screw 9 passing through the screw hole in the strip-shaped seat 8, the lead screw 9 is driven by a motor II 10.

[0022] The winding mechanism 3 includes a base 31 erected on the top of the strip-shaped seat 8, the base 31 top one side is provided with a fixed seat 32 fixing the motor III 33, the fixed seat 32 is provided with a rotating shaft 34 connected with the output shaft of the motor III 33, the other side of the base 31 top is further provided with a movable seat 35 fixing the end of the rotating shaft 34, the movable seat 35 is fixed on the base 31 by bolts, the movable seat 35 is provided with a circular hole corresponding to the rotating shaft 34, and the circular hole is provided with a bearing for the end of the rotating shaft 34 to pass through.

[0023] As shown in Figure 2 The box body 21 is provided with two groups of guide rollers 12 arranged side by side above and below in the box body 21 and in the box 1 downstream of the box body 21. The guide rollers 12 support and limit the diffusion film.

[0024] As shown in Figure 2 The two groups of electrostatic adsorption plates 22 form an eight-shaped structure buckled on the open end of the box body 21, the ends of the electrostatic adsorption plates 22 on the upper and lower sides of the box body 21 are movably connected with the inner wall of the box 1 through the rotating shaft 13, the outer side of the other end of the electrostatic adsorption plate 22 is provided with a magnetic limiting rod 14 limiting it, and the side wall of the box 1 is provided with a clamping groove accommodating the end of the limiting rod 14.

[0025] When the electrostatic adsorption plate 22 needs to be operated, the limiting rod 14 inserted into the clamping groove is pulled out by opening the switch door on the side wall of the box 1 to enter its inside, at this time the electrostatic adsorption plate 22 can be rotated with the rotating shaft 13 as the center, and the end face of the electrostatic adsorption plate 22 on the same side of the box body 21 is exposed, so that the dust and impurities adsorbed on the end face at this time can be cleaned.

[0026] In the embodiment, the cylindrical body 23 extends to the outside of the box 1, the box body 21 is fixedly connected with the inner wall of the box 1, and the motor I 211 is arranged outside the box 1.

[0027] When in use, the diffusion film is threaded through the gap between the feed pipe 4, the box 21 and the two sets of electrostatic adsorption plates 22, and is fixed on the rotating shaft 34, wherein the motor III 33 drives the rotating shaft 34 to rotate in the bearing in the movable seat 35, thereby winding the diffusion film, at this time, the motor I 211 drives the gear plate 29 to drive the mesh cylinder 27 to rotate on the cylinder 23 towards the feed pipe 4, at this time, the two sets of mesh cylinders 27 rotate in different directions, wherein the side wall of the box 21 abuts against the two ends of the mesh cylinder 27 to prevent it from moving forward and backward, and the cylinder 23 abuts against the inner wall of the mesh cylinder 27 to prevent it from moving up and down and left and right, and the mesh cylinder 27 rotates to drive the bristles 28 to brush off the dust attached to the upper and lower end faces of the diffusion film, at the same time, the air blower I guides the airflow into the ventilation channel 24 through the air inlet pipe 25, and the airflow is sprayed downward or upward through the strip-shaped opening 26 and the holes on the side wall of the mesh cylinder 27, thereby blowing and cleaning the dust attached to the upper and lower end faces of the diffusion film, so that the bristles can better clean the dust attached to the end faces of the diffusion film, in the above process, the air inlet amount of the air inlet pipe 25 can be adjusted according to requirements, to prevent the airflow sprayed by the strip-shaped opening 26 from being too large, which causes the diffusion film to be blown to a large degree of deformation and affects the winding of the diffusion film, and at the same time, the air blower II plays a role of extracting the dust cleaned out of the box 21 on the upper and lower sides of the diffusion film in the box 21, to clean the dust in the box 21, and when the bristles 28 rotate to the position corresponding to the electrostatic adsorption plate 22 after cleaning the dust, the working electrostatic adsorption plate 22 can adsorb and remove the dust possibly remaining on the bristles 28, so that the bristles 28 can continue to clean the diffusion film.

[0028] After the winding of the diffusion film is completed, the motor II 10 drives the screw rod 9 to rotate in the screw hole in the strip-shaped seat 8, thereby driving the strip-shaped seat 8 to slide in the sliding groove 7, at this time, the sliding groove 7 clamps the strip-shaped seat 8 to prevent it from rotating with the screw rod 9, when the strip-shaped seat 8 moves to the right, it drives the cover plate 11 to open the inlet and outlet 5, and drives the winding mechanism 3 to slide out of the inlet and outlet 5, at this time, the bolt is unscrewed and moves backward to drive the bearing to separate from the rotating shaft 34, at this time, the wound diffusion film roll can be taken off from the rotating shaft 34, then a winding drum is installed on the rotating shaft 34 and is locked and fixed by the movable seat 35, and at the same time, the strip-shaped seat 8 drives the winding mechanism 3 to reset and enters the box 1 to fix the end of the diffusion film on the winding mechanism 3, at this time, the winding mechanism 3 can continue to wind the diffusion film.

[0029] The above has described the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the implementation of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the scope of the patent coverage of the present application.

Claims

1. A winding device for producing diffusion films, characterized in that: The device includes a dust removal mechanism and a winding mechanism housed within a housing. The dust removal mechanism includes a box housing with its opening facing the winding mechanism. Electrostatic adsorption plates are inclinedly arranged on both the upper and lower sides of the box opening. Two sets of cylinders are arranged side-by-side inside the box housing. Ventilation channels connected to an exhaust fan I are provided in the side walls of the cylinders via air inlet pipes. A strip-shaped opening communicating with the ventilation channels is axially arranged on the outer wall of the cylinders. A mesh cylinder is also fitted over the cylinders. Flexible bristles are radially arranged on the outer wall of the mesh cylinder. A toothed disc is also provided at one end of the mesh cylinder. A gear meshing with the toothed disc and driven by a motor I is provided on the toothed disc. Dust collection hoods are respectively provided on the upper and lower sides of the box housing upstream of the mesh cylinder. The dust collection hoods are connected to an exhaust fan II via pipes.

2. The winding device for producing a diffusion film according to claim 1, characterized in that: A flat feed pipe extending into the opening of the box is provided on one side wall of the box body, and an inlet and outlet for the winding mechanism is provided on the other side wall of the box body. A support base passing through the inlet and outlet is provided inside the box body. A groove is provided on the top of the support base along its length. A strip seat extending to the outside of the box body is provided in the groove inside the box body. A cover plate sealing the inlet and outlet is provided on the top of the strip seat. A lead screw passing through a screw hole in the strip seat is also provided in the groove. The lead screw is driven by motor II. The winding mechanism includes a base fixed to the top of the strip seat. A fixing seat for fixing motor III is provided on one side of the top of the base. A rotating shaft connected to the output shaft of motor III is provided on the fixing seat. A movable seat for fixing the end of the rotating shaft is provided on the other side of the top of the base. The movable seat is fixed to the base by bolts. A circular hole corresponding to the rotating shaft is opened on the movable seat. A bearing for the end of the rotating shaft to pass through is provided in the circular hole.

3. The winding device for producing a diffusion film according to claim 2, characterized in that: The base is mounted on a strip seat, and the top of the strip seat is flush with the top surface of the support seat.

4. A winding device for producing a diffusion film according to claim 1, characterized in that: Both the inner box and the downstream box are equipped with two sets of guide rollers arranged side by side.

5. A winding device for producing a diffusion film according to claim 1, characterized in that: The two sets of electrostatic adsorption plates form a figure-eight structure that is fastened to the opening of the box. The ends of the electrostatic adsorption plates on the upper and lower sides of the box are movably connected to the inner wall of the box through a rotating shaft. A magnetic limiting rod is provided on the outer side of the other end of the electrostatic adsorption plate to limit its position. A slot is provided in the side wall of the box to accommodate the end of the limiting rod.

6. A winding device for producing a diffusion film according to claim 1, characterized in that: The upper strip opening is tilted downwards towards the upstream of the cylinder, while the lower strip opening is tilted upwards towards the upstream of the cylinder.

7. A winding device for producing a diffusion film according to claim 1, characterized in that: The end of the cylinder extends to the outside of the box, the box is fixedly connected to the inner wall of the box, and the motor I is located on the outside of the box.

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