A double-sided film tearing device

Abstract

The utility model provides a kind of double-sided film tearing equipment, including rack, and rack is installed processing sequence from right to left is respectively feeding bin, first conveying table, first material pressing roller assembly, first conveying roller assembly, second conveying table and unloading manipulator, and feeding bin and first conveying table between being equipped with feeding manipulator, and feeding manipulator is carried to first conveying table one by one with the piece in feeding bin, and first film tearing mechanism is equipped in the top of rack, and second film tearing mechanism is equipped in the lower of rack. The double-sided film tearing equipment of the application, compact structure layout, using automatic feeding, automatic film tearing and automatic unloading production mode, automatically film tearing for the double side of piece, form complete automatic production line, realize 24 hours uninterrupted production, effectively improve the efficiency of film tearing and the quality of film tearing, completely eliminate the film layer residue or substrate scratch problem existing in manual operation.

Description

Technical Field

[0001] This utility model relates to the field of automated processing equipment technology, specifically a double-sided film-peeling device. Background Technology

[0002] In the processing of sheet-like products, such as polarizers, which are functional thin films designed based on the principle of optical polarization, the core components of liquid crystal display (LCD) technology are mainly used to control the vibration direction of light. As an optical element, its surface cannot have scratches or other defects. Therefore, after the polarizer is manufactured, a protective film is applied to both sides of its surface for protection. This protective film needs to be removed before assembly. In the current technology, the film removal operation mainly relies on manual or semi-automatic equipment. Manual film removal is slow and difficult to match the pace of modern production lines. Moreover, labor costs are rising year by year. In addition, manual operation is prone to uneven force application, which can lead to protective film residue or breakage, affecting the subsequent use of the polarizer. Utility Model Content

[0003] The purpose of this invention is to provide a double-sided film-tearing device to solve the technical problems in the background art.

[0004] To achieve the aforementioned objectives, this utility model provides the following technical solution:

[0005] A double-sided film-tearing device includes a frame. The frame, from right to left, is equipped with a feeding bin, a first conveyor table, a first pressure roller assembly, a first transfer roller assembly, a second conveyor table, and a unloading robot. The feeding robot is located between the feeding bin and the first conveyor table, and it transports the sheets from the feeding bin one by one to the first conveyor table. A first film-tearing mechanism is located above the frame, and a second film-tearing mechanism is located below the frame. The first film-tearing mechanism includes a first film-tearing tape and a first drive roller assembly for tensioning the first film-tearing tape. The second film-tearing mechanism includes a second film-tearing tape and a second drive roller assembly for tensioning the second film-tearing tape. The first film-tearing tape is used to remove the upper film from the sheet, and the second film-tearing tape is used to remove the lower film from the sheet.

[0006] The first pressure roller assembly includes a support frame and an upper pressure roller and a lower pressure roller installed in the support frame. The support frame is fixedly installed with the machine frame. The second tear film tape wraps from below the first conveyor table to above the first conveyor table, passes between the upper and lower pressure rollers, and continues to above the first conveyor roller assembly. A first scraper is provided between the first conveyor roller assembly and the second conveyor table. The second tear film tape wraps from above the first scraper to below the first scraper and continues to its second drive roller assembly for material collection. A first guide roller is provided on the side of the first scraper near the second conveyor table.

[0007] A second scraper is installed above the second conveyor table. One side of the second scraper is adjustablely installed to the frame via a support plate. One side of the second scraper is fixed to the support plate with screws, and the other side is tilted and suspended on the second conveyor table. The first tear film tape is driven by the first drive roller assembly, passes between the upper and lower pressure rollers, and goes down to the second scraper. It then wraps around the second scraper from below to above it and is collected on the first drive roller assembly.

[0008] The loading robot includes a motor, a fixed plate, a limiting plate, and a connecting seat. The fixed plate is mounted on the frame, the motor is on the rear side of the fixed plate, and the limiting plate is fixed on the front side of the fixed plate. A pull rod is mounted on the drive shaft of the motor, and the pull rod has an elongated limiting hole. An inverted "U"-shaped groove is opened inside the limiting plate, and a guide rod slides in the groove. The other end of the guide rod passes through the limiting hole and is rotatably mounted to the connecting seat. The connecting seat is equipped with an adsorption component to adsorb and grip the sheet.

[0009] The connecting seat includes a first connecting plate and a second connecting plate. The first connecting plate is vertically connected above the second connecting plate. The first connecting plate is rotatably mounted with the guide rod. The adsorption assembly is installed below the second connecting plate. The adsorption assembly includes at least two sets of first vacuum nozzles. The two sets of first vacuum nozzles are installed alternately on the second connecting plate. The first vacuum nozzles are movably mounted to the second connecting plate through an elastic connecting seat. A shaking assembly is also provided between the two sets of first vacuum nozzles. The shaking assembly includes a first cylinder and a first support rod. The first support rod is driven and installed below the first cylinder. The first cylinder is fixed on the second connecting plate. The first support rod is below the second connecting plate. At least one second vacuum nozzle is installed on the first support rod.

[0010] The elastic connecting seat includes a first limiting block and a second limiting block. The second limiting block is vertically disposed on one side below the first limiting block. The first vacuum nozzle is installed below the second limiting block. A first rotating shaft is mounted on the first limiting block and is rotatably connected to the second limiting block. A first torsion spring is mounted on the first rotating shaft. The first torsion spring is located between the first limiting block and the second limiting block. The two support arms of the first torsion spring respectively abut against the first limiting block and the second limiting block.

[0011] The bottom of the first limiting block extends towards the second limiting block with two protruding first limiting strips. The first torsion spring is located between the two first limiting strips. The second limiting block is provided with corresponding second limiting strips that are symmetrically positioned with respect to the first limiting strips. A first stop extends upward from the top of the second limiting block. A first limiting post is installed on the first limiting block. The first limiting post is located above the first limiting strips and abuts against one side of the first stop.

[0012] The first conveying roller assembly includes a fixed frame, which is a hollow frame structure. Several feeding rollers are arranged equidistantly along the horizontal direction inside the fixed frame. The feeding rollers are all rotatably installed with the fixed frame. Two baffles are also provided inside the fixed frame. The two baffles are arranged at intervals in the fixed frame and are both inserted above the feeding rollers. The baffles are perpendicular to the feeding rollers.

[0013] Compared with existing technologies, the double-sided film-peeling equipment of this application has a compact structure and adopts an automatic feeding, automatic film-peeling and automatic unloading production method to automatically peel the film from both sides of the sheet, forming a complete automated production line to achieve 24-hour uninterrupted production. It effectively improves the efficiency and quality of film peeling, and completely eliminates the problems of film residue or substrate scratches caused by manual operation. In addition, the feeding robot of this application is equipped with a shaking component. The cylinder drives the sheet to shake up and down to avoid multiple sheets stacking during adsorption and picking. The first vacuum nozzle rotates and moves with the up and down movement of the sheet. The movable adsorption nozzle structure can eliminate the stress on the adsorption nozzles on both sides of the sheet during the up and down shaking, thereby avoiding defects such as stretching and breakage of the sheet during the shaking, and ensuring the subsequent processing of the sheet. Attached Figure Description

[0014] Figure 1 : A three-dimensional structural diagram of this application;

[0015] Figure 2 : A schematic diagram of the wiring path of the film-removing tape in this application;

[0016] Figure 3 : Installation structure diagram of the first pressure roller assembly and the first conveyor roller assembly;

[0017] Figure 4 Side view of the first pressure roller assembly and the first conveyor roller assembly during installation;

[0018] Figure 5 3D structural diagram of the loading robot:

[0019] Figure 6 Side view of the loading robot;

[0020] Figure 7 Installation structure diagram of tie rod and guide rod;

[0021] Figure 8 : 3D view of the first vacuum nozzle and flexible connecting seat installation;

[0022] Figure 9 : Exploded view of the first vacuum nozzle and the elastic connecting seat;

[0023] Figure 10Schematic diagram of the loading robot in operation;

[0024] Figure 11 : Three-dimensional structure diagram of the second scraper. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Specific Implementation Example 1: Please refer to Figures 1 to 11 In this embodiment of the present invention, a double-sided film-tearing device includes a frame 1. The frame 1 is installed and processed in the following order from right to left: a feeding bin 2, a first conveyor table 16, a first pressing roller assembly 17, a first conveying roller assembly 18, a second conveyor table 20, and a unloading robot. A feeding robot 3 is provided between the feeding bin 2 and the first conveyor table 16. The feeding robot 3 transports the sheets in the feeding bin 2 one by one to the first conveyor table 16. A first film-tearing mechanism 21 is provided above the frame 1, and a second film-tearing mechanism 22 is provided below the frame 1. The first film-tearing mechanism 21 includes a first film-tearing tape 2101 and a first drive roller assembly for tensioning the first film-tearing tape 2101. The second film-tearing mechanism 22 includes a second film-tearing tape 2201 and a second drive roller assembly for tensioning the second film-tearing tape 2201. The first film-tearing tape 2101 is used to remove the upper film of the sheet, and the second film-tearing tape 2201 is used to remove the lower film of the sheet.

[0027] The first pressure roller assembly 17 includes a support frame 1701 and an upper pressure roller 1702 and a lower pressure roller 1703 installed in the support frame 1701. The support frame 1701 is fixedly installed with the frame 1. The second film-tearing tape 2201 wraps around from below the first conveyor table 16 to above the first conveyor table 16, passes between the upper pressure roller 1702 and the lower pressure roller 1703 until it reaches above the first conveyor roller assembly 18. A first scraper 23 is provided between the first conveyor roller assembly 18 and the second conveyor table 20. The second film-tearing tape 2201 wraps around from above the first scraper 23 to below the first scraper 23 until it reaches its second drive roller assembly for material collection. A first guide roller 24 is provided on the side of the first scraper 23 near the second conveyor table 20.

[0028] A second scraper 25 is installed above the second conveyor table 20. One side of the second scraper 25 is adjustablely installed to the frame 1 via a support plate 26. One side of the second scraper 25 is fixed to the support plate 26 with screws, and the other side is tilted and suspended on the second conveyor table 20. The first tear film tape 2101 is driven by the first drive roller assembly, passes between the upper pressure roller 1702 and the lower pressure roller 1703 until it reaches below the second scraper 25, and then winds around from below the second scraper 25 to above it until it reaches the first drive roller assembly for material collection.

[0029] The loading robot 3 includes a motor 9, a fixed plate 4, a limiting plate 5, and a connecting seat 6. The fixed plate 4 is mounted on the frame 1. The motor 9 is located behind the fixed plate 4, and the limiting plate 5 is fixed to the front of the fixed plate 4. A pull rod 10 is mounted on the drive shaft of the motor 9. The pull rod 10 has an elongated limiting hole 1001. An inverted "U"-shaped groove 501 is opened inside the limiting plate 5. A guide rod 11 slides in the groove 501. The other end of the guide rod 11 passes through the limiting hole 1001 and is rotatably mounted to the connecting seat 6. The connecting seat 6 is equipped with an adsorption component 7 to adsorb and grasp the sheet. When the motor 9 drives the pull rod 10 to rotate, the pull rod 10 drives the guide rod 11 to slide in the groove 501, thereby driving the entire connecting seat 6 to move along the trajectory of the groove 501. This achieves the up-and-down movement of the connecting seat 6, converting curved motion into linear motion, effectively simplifying the layout of the parts and saving the lateral space of the robot.

[0030] The connecting seat 6 includes a first connecting plate 601 and a second connecting plate 602. The first connecting plate 601 is vertically connected above the second connecting plate 602. The first connecting plate 601 is rotatably mounted with the guide rod 11. The adsorption assembly 7 is installed below the second connecting plate 602. Two sets of first slide rails 12 are provided vertically on the rear side of the first connecting plate 601. A first slider 13 is slidably mounted on the first slide rail 12. The first connecting plate 601 and the first slider 13 are fixedly mounted. Second slide rails 14 are arranged parallel to each other at the upper and lower ends of the fixed plate 4. A second slider 15 is slidably mounted on the second slide rail 14. The second slider 15 is fixedly mounted with the first slide rail 12. The first slide rail 12 and the second slide rail 14 are arranged perpendicular to each other. The arrangement of the first slide rail 12 and the second slide rail 14 makes the linear movement of the connecting seat 6 more stable.

[0031] The adsorption assembly 7 includes at least two sets of first vacuum nozzles 701, which are spaced apart and mounted on the second connecting plate 602. The first vacuum nozzles 701 are movably mounted to the second connecting plate 602 via elastic connecting seats 702. A shaking assembly 8 is also provided between the two sets of first vacuum nozzles 701. The shaking assembly 8 includes a first cylinder 801 and a first support rod 802. The first support rod 802 is driven and mounted below the first cylinder 801. The first cylinder 801 is fixed to the second connecting plate 602, and the first support rod 802 is below the second connecting plate 602. At least one second vacuum nozzle 803 is mounted on the first support rod 802. After the second vacuum nozzle 803 and the first vacuum nozzle 701 adsorb the sheet, the first cylinder 801 drives the second vacuum nozzle 803 to move up and down, thereby achieving a shaking effect. This prevents the sheet from sticking together due to static electricity, ensuring accurate subsequent film removal.

[0032] The elastic connecting seat 702 includes a first limiting block 702-1 and a second limiting block 702-2. The second limiting block 702-2 is vertically disposed on one side below the first limiting block 702-1. A first vacuum nozzle 701 is installed below the second limiting block 702-2. A first rotating shaft 704 is mounted on the first limiting block 702-1 and rotatably connected to the second limiting block 702-2. A first torsion spring 703 is mounted on the first rotating shaft 704. The first torsion spring 703 is located between the first limiting block 702-1 and the second limiting block 702-2. The two support arms of the first torsion spring 703 abut against the first limiting block 702-1 and the second limiting block 702-2, respectively.

[0033] The bottom of the first limiting block 702-1 extends towards the second limiting block 702-2 with two protruding first limiting strips 702-1-1. A first torsion spring 703 is located between the two first limiting strips 702-1-1. The second limiting block 702-2 has corresponding second limiting strips 702-2-1, which are symmetrically positioned with the first limiting strips 702-1-1. The two support arms of the first torsion spring 703 abut against the inner wall of the first limiting strip 702-1-1 on one side and against the inner wall of the second limiting strip 702-2-1 on the other side. A first stop block 702-2-2 extends upward from the top of the second limiting block 702-2. A first limiting post 705 is installed on the first limiting block 702-1, above the first limiting strip 702-1-1, and abuts against one side of the first stop block 702-2-2. The first limiting post 705 and the first baffle 1803 limit the reset of the second limiting block 702-2, ensuring that the first vacuum nozzle 701 on the second limiting block 702-2 remains vertical in the origin state and parallel to the second vacuum nozzle 803, so that the material can be adsorbed at the same time when the sheet is picked up and adsorbed.

[0034] When adsorption and material removal are required, the first vacuum nozzle 701 and the second vacuum nozzle 803 simultaneously adsorb the sheet. The first cylinder 801 drives the second vacuum nozzle 803 to move up and down repeatedly to shake the material. While the second vacuum nozzle 803 moves up and down, the first vacuum nozzle 701 rotates around the first rotating shaft 704 at a corresponding angle and swings accordingly in the direction and angle of the sheet's movement to avoid directly pulling the sheet and causing the product to stretch and deform.

[0035] The first conveyor roller assembly 18 includes a fixed frame 1801, which is a hollow frame structure. Several feeding rollers 1802 are arranged equidistantly along the transverse direction inside the fixed frame 1801. The feeding rollers 1802 are all rotatably mounted with the fixed frame 1801. Two baffles 1803 are also provided inside the fixed frame 1801. The two baffles 1803 are arranged at intervals in front and behind inside the fixed frame 1801 and are both inserted above the feeding rollers 1802. The baffles 1803 are perpendicular to the feeding rollers 1802.

[0036] Workflow: Place the neatly stacked sheet products into the feeding hopper 2, close the safety door lock, press the start button, and the feeding robot 3 will grab the product and lift it up. At the same time, the cylinder of the feeding robot 3 will vibrate to prevent the product from sticking. The feeding robot 3 will place the picked-up sheet on the first conveyor table 16. The first conveyor table 16 will confirm the material arrival. At the same time, the second tear film tape 2201 will be attached to the bottom of the sheet. The feeding motor 9 will send the sheet through the first pressure roller assembly 17 to the designated distance. After the sheet passes through the first pressure roller assembly 17, the first tear film tape 2101 will adhere to the upper surface of the sheet.

[0037] The sheet is conveyed to the position of the first scraper 23 via the first conveyor roller assembly 18. The lower protective film of the product is first removed. The second tear film tape 2201, carrying the bonded protective film, is wound around to the corresponding take-up roller for winding. The sheet then passes the position of the second scraper 25. The first tear film tape 2101 removes the upper protective film. The first tear film tape 2101 is wound around above the second scraper 25 until it is wound onto the first drive roller assembly for winding, completing the double-sided decoction of the sheet. After decoction, the sheet is then transported to other processes by the unloading robot.

[0038] Compared with existing technologies, the double-sided film-peeling equipment of this application has a compact structure and adopts an automatic feeding, automatic film-peeling and automatic unloading production method to automatically peel the film from both sides of the sheet, forming a complete automated production line to achieve 24-hour uninterrupted production. It effectively improves the efficiency and quality of film peeling, and completely eliminates the problems of film residue or substrate scratches caused by manual operation. In addition, the feeding robot of this application is equipped with a shaking component. The cylinder drives the sheet to shake up and down to avoid multiple sheets stacking during adsorption and picking. The first vacuum nozzle rotates and moves with the up and down movement of the sheet. The movable adsorption nozzle structure can eliminate the stress on the adsorption nozzles on both sides of the sheet during the up and down shaking, thereby avoiding defects such as stretching and breakage of the sheet during the shaking, and ensuring the subsequent processing of the sheet.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the foregoing exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-sided film-peeling device, characterized in that: The machine includes a frame, from right to left, in the following order: a feeding bin, a first conveyor table, a first pressing roller assembly, a first conveying roller assembly, a second conveyor table, and a unloading robot. A feeding robot is located between the feeding bin and the first conveyor table, and it transports the sheets from the feeding bin one by one to the first conveyor table. A first film-tearing mechanism is located above the frame, and a second film-tearing mechanism is located below the frame. The first film-tearing mechanism includes a first film-tearing tape and a first drive roller assembly for tensioning the first film-tearing tape. The second film-tearing mechanism includes a second film-tearing tape and a second drive roller assembly for tensioning the second film-tearing tape. The first film-tearing tape is used to remove the upper film from the sheet, and the second film-tearing tape is used to remove the lower film from the sheet.

2. The double-sided film-peeling device according to claim 1, characterized in that: The first pressure roller assembly includes a support frame and an upper pressure roller and a lower pressure roller installed in the support frame. The support frame is fixedly installed with the machine frame. The second tear film tape wraps from below the first conveyor table to above the first conveyor table, passes between the upper and lower pressure rollers, and continues to above the first conveyor roller assembly. A first scraper is provided between the first conveyor roller assembly and the second conveyor table. The second tear film tape wraps from above the first scraper to below the first scraper and continues to its second drive roller assembly for material collection. A first guide roller is provided on the side of the first scraper near the second conveyor table.

3. The double-sided film-peeling device according to claim 2, characterized in that: A second scraper is installed above the second conveyor table. One side of the second scraper is adjustablely installed to the frame via a support plate. One side of the second scraper is fixed to the support plate with screws, and the other side is tilted and suspended on the second conveyor table. The first tear film tape is driven by the first drive roller assembly, passes between the upper and lower pressure rollers, and goes down to the second scraper. It then wraps around the second scraper from below to above it and is collected on the first drive roller assembly.

4. The double-sided film-peeling device according to claim 3, characterized in that: The loading robot includes a motor, a fixed plate, a limiting plate, and a connecting seat. The fixed plate is mounted on the frame, the motor is on the rear side of the fixed plate, and the limiting plate is fixed on the front side of the fixed plate. A pull rod is mounted on the drive shaft of the motor, and the pull rod has an elongated limiting hole. An inverted "U"-shaped groove is opened inside the limiting plate, and a guide rod slides in the groove. The other end of the guide rod passes through the limiting hole and is rotatably mounted to the connecting seat. The connecting seat is equipped with an adsorption component to adsorb and grip the sheet.

5. A double-sided film-peeling device according to claim 4, characterized in that: The connecting seat includes a first connecting plate and a second connecting plate. The first connecting plate is vertically connected above the second connecting plate. The first connecting plate is rotatably mounted with the guide rod. The adsorption assembly is installed below the second connecting plate. The adsorption assembly includes at least two sets of first vacuum nozzles. The two sets of first vacuum nozzles are installed alternately on the second connecting plate. The first vacuum nozzles are movably mounted to the second connecting plate through an elastic connecting seat. A shaking assembly is also provided between the two sets of first vacuum nozzles. The shaking assembly includes a first cylinder and a first support rod. The first support rod is driven and installed below the first cylinder. The first cylinder is fixed on the second connecting plate. The first support rod is below the second connecting plate. At least one second vacuum nozzle is installed on the first support rod.

6. The double-sided film-peeling device according to claim 5, characterized in that: The elastic connecting seat includes a first limiting block and a second limiting block. The second limiting block is vertically disposed on one side below the first limiting block. The first vacuum nozzle is installed below the second limiting block. A first rotating shaft is mounted on the first limiting block and is rotatably connected to the second limiting block. A first torsion spring is mounted on the first rotating shaft. The first torsion spring is located between the first limiting block and the second limiting block. The two support arms of the first torsion spring respectively abut against the first limiting block and the second limiting block.

7. A double-sided film-peeling device according to claim 6, characterized in that: The bottom of the first limiting block extends towards the second limiting block with two protruding first limiting strips. The first torsion spring is located between the two first limiting strips. The second limiting block is provided with corresponding second limiting strips that are symmetrically positioned with respect to the first limiting strips. A first stop extends upward from the top of the second limiting block. A first limiting post is installed on the first limiting block. The first limiting post is located above the first limiting strips and abuts against one side of the first stop.

8. A double-sided film-peeling device according to claim 7, characterized in that: The first conveying roller assembly includes a fixed frame, which is a hollow frame structure. Several feeding rollers are arranged equidistantly along the horizontal direction inside the fixed frame. The feeding rollers are all rotatably installed with the fixed frame. Two baffles are also provided inside the fixed frame. The two baffles are arranged at intervals in the fixed frame and are both inserted above the feeding rollers. The baffles are perpendicular to the feeding rollers.

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