Efficient film tearing device

Abstract

The invention discloses an efficient film tearing device which is used for tearing protective films on workpieces, the lower surfaces of at least two workpieces sequentially arranged from left to right are provided with protective film tearing parts, and the upper surface of each workpiece is matched with a vacuum adsorption plate in an adsorption mode. Comprising a strip-shaped vertical plate extending leftwards and rightwards, a first material guide roller rotationally arranged on the front side of the left end of the strip-shaped vertical plate, a second material guide roller rotationally arranged on the front side of the right end of the strip-shaped vertical plate, an adhesive tape used for being matched with a protective film in a bonding mode, a material discharging assembly and a material collecting assembly, wherein the material discharging assembly and the material collecting assembly are arranged below the strip-shaped vertical plate; the material collecting assembly further comprises a mounting vertical plate with the upper end connected with the strip-shaped vertical plate, a material collecting rotating shaft rotationally mounted at the lower end of the mounting vertical plate and a material collecting motor mounted on the surface of the rear side of the mounting vertical plate. According to the film tearing device, interference on workpieces, especially relative positions of the workpieces in the film tearing process can be avoided, and stable winding of waste adhesive tape and supplementary feeding of the adhesive tape can be achieved after each time of tearing operation.

Description

Technical Field

[0001] This invention relates to the field of automated processing technology, and in particular to a high-efficiency film-tearing device. Background Technology

[0002] In automated manufacturing processes, many workpieces require a protective film removal step. Current technologies for removing protective films from products typically employ two methods: traditional manual tearing and using a robotic arm's grippers to clamp and tear the protective film off.

[0003] Because the products to be peeled off are usually expensive and fragile, unnecessary contact with the product during peeling can easily damage it. Manual peeling inevitably touches and interferes with the surface of the product, causing defects such as poor assembly and display in subsequent processes, leading to a decline in product quality. Furthermore, the speed of manual peeling is greatly affected by the operator's skill level, and the labor intensity is high, resulting in low production efficiency and high costs. Additionally, when the protective film is completely adhered to the product without any peeling corners, both manual and mechanical peeling methods require inserting the film through the gap between the protective film and the product, making peeling difficult and affecting the quality of the product, resulting in a low success rate. Moreover, when peeling multiple consecutively arranged workpieces at once, it is even more difficult to avoid adverse interference with the workpieces during the peeling process. Summary of the Invention

[0004] The main objective of this invention is to provide a high-efficiency film-tearing device that can avoid interference with the workpiece, especially the relative position between workpieces, during the film-tearing process, and can also achieve stable winding of waste tape and replenishment of tape after each tearing operation.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a high-efficiency film-removing device for removing protective film from workpieces, wherein at least two workpieces arranged from left to right each have protective film removed from their lower surfaces, and the upper surface of each workpiece is adsorbed and cooperated with a vacuum adsorption plate, comprising: a strip-shaped vertical plate extending left and right, a first guide roller rotatably disposed on the front side of the left end of the strip-shaped vertical plate, a second guide roller rotatably disposed on the front side of the right end of the strip-shaped vertical plate, an adhesive tape for bonding with the protective film, and a feeding assembly and a receiving assembly respectively disposed below the strip-shaped vertical plate, wherein the non-adhesive surface of the adhesive tape disposed between the feeding assembly and the receiving assembly rolls in contact with the outer circumferential surfaces of the first guide roller and the second guide roller, and the receiving assembly further comprises: a mounting vertical plate connected to the strip-shaped vertical plate at its upper end, a receiving shaft rotatably mounted on the lower end of the mounting vertical plate, and a receiving motor mounted on the rear surface of the mounting vertical plate; A drive roller is fitted on the outside of a mandrel rotatably mounted above a receiving shaft. One end of the mandrel passes through a mounting plate and is connected to the output shaft of a receiving motor. A pulley is mounted on both the receiving shaft and the mandrel, located behind the mounting plate. The two pulleys are connected by a belt drive. A rotating plate is located on the front side of the mounting plate. The upper end of the rotating plate is rotatably mounted on the mounting plate via a pin. A clamping roller is rotatably mounted on the lower end of the rotating plate, parallel to one side of the drive roller. A first connecting pin is located on the upper side of the rotating plate opposite to the drive roller. A spring connects the first connecting pin and a second connecting pin located on the upper surface of the rotating plate, causing the clamping roller mounted on the lower end of the rotating plate to press against the drive roller. A movable plate that can move in the left and right direction is installed on the front surface of the strip vertical plate and between the first guide roller and the second guide roller via a track and slider. The front sides of the left and right ends of the movable plate are respectively rotatably provided with the first movable roller and the second movable roller, with the second movable roller on the right side being higher than the first movable roller. The tape from the feeding assembly passes sequentially between the first guide roller, the second movable roller, the first movable roller and the second guide roller, and the clamping roller and the power roller of the receiving assembly, and then winds onto the receiving shaft. This causes the non-adhesive surface of the tape to roll into contact with the outer circumference of the second movable roller, while the adhesive surface of the tape rolls into contact with the outer circumference of the first movable roller. The adhesive surface of the tape located between the first guide roller and the second movable roller faces the protective film on the lower surface of the workpiece.

[0006] The following are further improvements to the above technical solution: 1. In the above scheme, the horizontally arranged base plate and the base mounted on the upper surface of the base plate, the lower part of the left end of the strip vertical plate is connected to the upper part of the base plate, the feeding assembly is mounted on the base plate, a transfer cylinder extending forward and backward is arranged below the base plate plate, the movable part of the transfer cylinder is connected to the base plate plate, and is used to drive the base plate plate to move forward and backward, and a guide rail extending forward and backward is arranged on both sides of the transfer cylinder plate, and the lower surface of the base plate plate is connected to each of the guide rails by at least two sliders.

[0007] 2. In the above scheme, the transfer cylinder is a rodless cylinder.

[0008] 3. In the above scheme, the workpiece is a horizontally arranged steel plate, and the protective film is a release film.

[0009] 4. In the above scheme, both the second movable roller and the clamping roller are elastic rollers.

[0010] 5. In the above scheme, a fourth guide roller with the same height as the first guide roller is rotatably arranged between the first guide roller and the second movable roller. When the second movable roller moves with the movable plate to the left end of its stroke, the fourth guide roller is arranged adjacent to the second movable roller.

[0011] 6. In the above scheme, the second movable roller is at the same height as or slightly higher than the fourth guide roller, so that the adhesive surface of the tape located between the first guide roller and the second movable roller remains horizontal or slightly inclined.

[0012] 7. In the above scheme, a third guide roller is rotatably arranged directly below the first guide roller, and the first movable roller is located between the third guide roller and the first guide roller in the vertical direction.

[0013] 8. In the above scheme, a third movable roller is rotatably provided on the front side of the movable plate. The third movable roller, which is set at the same height as the second guide roller, is located between the first movable roller and the second movable roller in the left-right direction.

[0014] 9. In the above scheme, the receiving shaft and the mandrel are each rotatably mounted on the mounting plate via a bearing seat.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The present invention provides a high-efficiency film-tearing device, comprising a mandrel rotatably mounted above a receiving shaft, on the outside of which a power roller is fitted. One end of the mandrel passes through a mounting plate and is connected to the output shaft of a receiving motor. Both the receiving shaft and the mandrel are mounted with pulleys on the rear side of the mounting plate, connected by a belt drive. A rotating plate is located on the front side of the mounting plate, the upper end of which is rotatably mounted on the mounting plate via a pin. A clamp is rotatably mounted on the lower end of the rotating plate, parallel to one side of the power roller. A clamping roller is positioned above the rotating plate, opposite to the power roller. A first connecting pin is connected to a second connecting pin on the upper surface of the rotating plate via a spring, causing the clamping roller mounted at the lower end of the rotating plate to press against the power roller. A movable plate, movable in the left-right direction, is mounted on the front surface of the strip-shaped vertical plate between the first and second guide rollers via a track and slider. A first movable roller and a second movable roller are rotatably mounted on the front sides of the left and right ends of the movable plate, respectively, with the first and second movable rollers located on the right side. The second movable roller is higher than the first movable roller. The tape from the feeding assembly passes sequentially between the first guide roller, the second movable roller, the first movable roller, the second guide roller, and the clamping roller and power roller of the take-up assembly before winding onto the take-up shaft. This allows the non-adhesive surface of the tape to roll in contact with the outer circumference of the second movable roller, while the adhesive surface of the tape rolls in contact with the outer circumference of the first movable roller. The adhesive surface of the tape located between the first guide roller and the second movable roller faces the protective film on the lower surface of the workpiece. This is achieved by attaching the adhesive surface of the tape... The protective film is then peeled off using the adhesive force of the tape. During this process, the tape is applied in the forward direction and peeled off in the reverse direction by the moving rollers that reciprocate with the moving plate while the feeding and receiving components are stationary. This ensures the stability, uniformity, and controllability of the tape application and removal rate, improves the peeling effect, avoids interference with the workpiece, especially the relative position between workpieces, during the peeling process, and also enables the stable winding of waste tape and the simultaneous replenishment of tape during the receiving process after each peeling operation.

[0016] 2. The high-efficiency film-tearing device of the present invention has a transfer cylinder extending forward and backward below the base plate. The movable part of the transfer cylinder is connected to the base plate and is used to drive the base plate to move forward and backward. A guide rail extending forward and backward is provided on both sides of the transfer cylinder. The lower surface of the base plate is connected to each guide rail by at least two sliders, which facilitates the installation of new tape rolls on the feeding assembly and the disassembly of waste rolls on the receiving assembly, thereby improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a first-view schematic diagram of the overall structure of the high-efficiency film-tearing device of the present invention; Figure 2This is a second-view schematic diagram of the overall structure of the high-efficiency film-tearing device of the present invention; Figure 3 This is a third-view schematic diagram of the overall structure of the high-efficiency film-tearing device of the present invention; Figure 4 This is a fourth-view schematic diagram of the overall structure of the high-efficiency film-tearing device of the present invention; Figure 5 for Figure 4 A schematic diagram of the local structure at point A in the middle; Figure 6 This is a schematic diagram of the structure of the roller in the high-efficiency film-tearing device of the present invention. Figure 7 This is a schematic diagram of the structure of the workpiece of the high-efficiency film-tearing device of the present invention.

[0018] In the attached diagrams: 100, tape; 200, workpiece; 300, protective film; 400, vacuum adsorption plate; 1, strip vertical plate; 2, first guide roller; 3, second guide roller; 41, track; 42, slider; 5, movable plate; 6, first movable roller; 7, second movable roller; 8, rodless cylinder; 81, movable part; 9, push block; 91, strip through hole; 10, third guide wheel; 11, fourth guide roller; 12, third movable roller; 13, support shaft; 14, bearing. 15. Retaining ring; 16. Mounting vertical plate; 17. Receiving shaft; 18. Receiving motor; 19. Mandrel; 20. Power roller; 21. Pulley; 22. Belt; 23. Bearing seat; 24. Tensioner; 25. Mounting plate; 251. Strip hole; 26. Rotating plate; 27. Pin; 28. Clamping roller; 29. ​​Spring; 291. First connecting pin; 292. Second connecting pin; 30. Base; 38. Bottom plate; 39. Transfer cylinder; 40. Guide rail; 41. Slider. Detailed Implementation

[0019] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0020] Example 1: A high-efficiency film-removing device for removing protective film 300 from workpieces 200. At least two workpieces 200 arranged from left to right each have protective film 300 on their lower surfaces. The upper surface of each workpiece 200 is engaged with a vacuum adsorption plate 400. The device includes: a horizontally extending strip-shaped vertical plate 1; a first guide roller 2 rotatably disposed on the front left side of the strip-shaped vertical plate 1; a second guide roller 3 rotatably disposed on the front right side of the strip-shaped vertical plate 1; and a device for engaging with the protective film 300. The tape 100 is bonded together with the strip vertical plate 1 and the feeding assembly and the receiving assembly are respectively set below the strip vertical plate 1. The non-adhesive surface of the tape 100 set between the feeding assembly and the receiving assembly rolls in contact with the outer circumferential surfaces of the first guide roller 2 and the second guide roller 3. The receiving assembly further includes: a mounting vertical plate 16 connected to the strip vertical plate 1 at its upper end, a receiving shaft 17 rotatably mounted at the lower end of the mounting vertical plate 16, and a receiving motor 18 mounted on the rear surface of the mounting vertical plate 16. A drive roller 20 is fitted on the outside of a mandrel 19 rotatably mounted above a receiving shaft 17. One end of the mandrel 19 passes through a mounting plate 16 and is connected to the output shaft of a receiving motor 18. A pulley 21 is mounted on both the receiving shaft 17 and the mandrel 19, located behind the mounting plate 16. The two pulleys 21 are connected by a belt 22. A rotating plate 26 is provided on the front side of the mounting plate 16, and the upper end of the rotating plate 26 is connected by a pin. 27 is rotatably mounted on the mounting vertical plate 16. A clamping roller 28 is rotatably mounted on the lower end of the rotating plate 26, parallel to one side of the power roller 20. A first connecting pin 291 is provided on the upper side of the rotating plate 26 opposite to the power roller 20. A spring 29 is connected between the first connecting pin 291 and the second connecting pin 292 provided on the upper end face of the rotating plate 26, so that the clamping roller 28 mounted on the lower end of the rotating plate 26 and the power roller 20 are pressed against each other. A movable plate 5, which can move in the left and right direction, is installed on the front surface of the strip vertical plate 1 and between the first guide roller 2 and the second guide roller 3 via a track 41 and a slider 42. The front sides of the left and right ends of the movable plate 5 are respectively rotatably provided with a first movable roller 6 and a second movable roller 7, with the second movable roller 7 on the right side being higher than the first movable roller 6. The tape 100 from the feeding assembly passes sequentially between the first guide roller 2, the second movable roller 7, the first movable roller 6 and the second guide roller 3, and the clamping roller 28 and the power roller 20 of the receiving assembly, and then winds onto the receiving shaft 17. This causes the non-adhesive surface of the tape 100 to roll in contact with the outer circumferential surface of the second movable roller 7, while the adhesive surface of the tape 100 rolls in contact with the outer circumferential surface of the first movable roller 6. The adhesive surface of the tape 100 located between the first guide roller 2 and the second movable roller 7 is set towards the protective film 300 on the lower surface of the workpiece 200.

[0021] A horizontally arranged base plate 38 and a base 30 mounted on the upper surface of the base plate 38 are provided. The lower part of the left end of the strip vertical plate 1 is connected to the upper part of the base 30. The feeding assembly is mounted on the base 30. A transfer cylinder 39 extending forward and backward is provided below the base plate 38. The movable part of the transfer cylinder 39 is connected to the base plate 38 and is used to drive the base plate 38 to move forward and backward. A guide rail 40 extending forward and backward is provided on both sides of the transfer cylinder 39. The lower surface of the base plate 38 and each of the guide rails 40 are connected by at least two sliders 41.

[0022] The aforementioned transfer cylinder 39 is a rodless cylinder.

[0023] The workpiece 200 is a horizontally arranged steel plate, and the protective film 300 is a release film.

[0024] Both the second movable roller 7 and the clamping roller 28 mentioned above are elastic rollers.

[0025] A fourth guide roller 11, which is at the same height as the first guide roller 2, is rotatably disposed between the first guide roller 2 and the second movable roller 7. When the second movable roller 7 moves with the movable plate 5 to the left end of its stroke, the fourth guide roller 11 is disposed adjacent to the second movable roller 7.

[0026] The second movable roller 7 is at the same height as or slightly higher than the fourth guide roller 11, so that the adhesive surface of the tape 100 located between the first guide roller 2 and the second movable roller 7 remains horizontal or slightly inclined.

[0027] A third guide roller 10 is rotatably disposed directly below the first guide roller 2, and the first movable roller 6 is located vertically between the third guide roller 10 and the first guide roller 2.

[0028] A third movable roller 12 is rotatably provided on the front side of the aforementioned movable plate 5. The third movable roller 12, which is set at the same height as the second guide roller 3, is located between the first movable roller 6 and the second movable roller 7 in the left-right direction.

[0029] The aforementioned receiving shaft 17 and mandrel 19 are each rotatably mounted on the mounting plate 16 via a bearing seat 23.

[0030] Example 2: A high-efficiency film-removing device for removing protective film 300 from workpieces 200. At least two workpieces 200 arranged from left to right each have protective film 300 on their lower surfaces. The upper surface of each workpiece 200 is engaged with a vacuum adsorption plate 400. The device includes: a horizontally extending strip-shaped vertical plate 1; a first guide roller 2 rotatably disposed on the front left side of the strip-shaped vertical plate 1; and a second guide roller 3 rotatably disposed on the front right side of the strip-shaped vertical plate 1. The tape 100 is bonded to the membrane 300 and the feeding assembly and receiving assembly are respectively disposed below the strip vertical plate 1. The non-adhesive surface of the tape 100 disposed between the feeding assembly and the receiving assembly rolls in contact with the outer circumferential surfaces of the first guide roller 2 and the second guide roller 3. The receiving assembly further includes: a mounting vertical plate 16 connected to the strip vertical plate 1 at its upper end, a receiving shaft 17 rotatably mounted at the lower end of the mounting vertical plate 16, and a receiving motor 18 mounted on the rear surface of the mounting vertical plate 16. A drive roller 20 is fitted on the outside of a mandrel 19 rotatably mounted above a receiving shaft 17. One end of the mandrel 19 passes through a mounting plate 16 and is connected to the output shaft of a receiving motor 18. A pulley 21 is mounted on both the receiving shaft 17 and the mandrel 19, located behind the mounting plate 16. The two pulleys 21 are connected by a belt 22. A rotating plate 26 is provided on the front side of the mounting plate 16, and the upper end of the rotating plate 26 is connected by a pin. 27 is rotatably mounted on the mounting vertical plate 16. A clamping roller 28 is rotatably mounted on the lower end of the rotating plate 26, parallel to one side of the power roller 20. A first connecting pin 291 is provided on the upper side of the rotating plate 26 opposite to the power roller 20. A spring 29 is connected between the first connecting pin 291 and the second connecting pin 292 provided on the upper end face of the rotating plate 26, so that the clamping roller 28 mounted on the lower end of the rotating plate 26 and the power roller 20 are pressed against each other. A movable plate 5, which can move in the left and right direction, is installed on the front surface of the strip vertical plate 1 and between the first guide roller 2 and the second guide roller 3 via a track 41 and a slider 42. The front sides of the left and right ends of the movable plate 5 are respectively rotatably provided with a first movable roller 6 and a second movable roller 7, with the second movable roller 7 on the right side being higher than the first movable roller 6. The tape 100 from the feeding assembly passes sequentially between the first guide roller 2, the second movable roller 7, the first movable roller 6 and the second guide roller 3, and the clamping roller 28 and the power roller 20 of the receiving assembly, and then winds onto the receiving shaft 17. This causes the non-adhesive surface of the tape 100 to roll in contact with the outer circumferential surface of the second movable roller 7, while the adhesive surface of the tape 100 rolls in contact with the outer circumferential surface of the first movable roller 6. The adhesive surface of the tape 100 located between the first guide roller 2 and the second movable roller 7 is set towards the protective film 300 on the lower surface of the workpiece 200.

[0031] A tensioning wheel 24 that is driven by the belt 22 is rotatably mounted on the rear side of the mounting plate 16. The tensioning wheel 24 is movably mounted on the mounting plate 16 through a mounting plate 25 with a slotted hole 251.

[0032] The aforementioned first connecting pin 281 is installed on the front surface of the strip vertical plate 1.

[0033] A rodless cylinder 8 is installed on the rear surface of the strip vertical plate 1. One end of a push block 9 is connected to the movable part 81 of the rodless cylinder 8. The other end of the push block 9 passes through the strip-shaped through hole 91 that extends left and right on the strip vertical plate 1 and is embedded in the movable plate 5.

[0034] The tape 100 passes sequentially through the third guide roller 10, the first guide roller 2, the fourth guide roller 11, the second movable roller 7, the first movable roller 6, the third movable roller 12, and the second guide roller 3. The non-adhesive surface of the tape 100 rolls into contact with the outer circumferential surfaces of the third guide roller 10, the first guide roller 2, the fourth guide roller 11, the second movable roller 7, the third movable roller 12, and the second guide roller 3.

[0035] The first guide roller 2, the second guide roller 3, the third guide roller 10, the fourth guide roller 11, the first movable roller 6, the second movable roller 7, and the third movable roller 12 are all fitted on the outside of a support shaft 13 and are rotatably mounted on the support shaft 13 through two spaced bearings 14. One end of the support shaft 13, which is perpendicular to the strip vertical plate 1 and the movable plate 5, is mounted on the strip vertical plate 1 or the movable plate 5.

[0036] Each of the first guide roller 2, the second guide roller 3, the third guide roller 10, the fourth guide roller 11, the first movable roller 6, and the third movable roller 12 is fitted with two spaced retaining rings 15 on its outer side, and the tape 100 is located between the two retaining rings 15.

[0037] Working principle: In use, the base plate is first moved to the front by the transfer cylinder, and then the roll of single-sided adhesive tape is installed on the feeding assembly. Then, one end of the tape is pulled out and passes through the third guide roller, the first guide roller, the fourth guide roller, the second movable roller, the first movable roller, the third movable roller and the second guide roller in sequence. After passing between the automatic force roller and the clamping roller, it is wound around the take-up shaft. The tape is kept taut and the adhesive side of the tape between the first guide roller and the second movable roller is facing upward. After the tape roll is transferred and the initial settings are completed, the base plate is moved to the last side by the transfer cylinder, and then the subsequent film peeling process is carried out. When both the feeding assembly and the receiving assembly's receiving motors are not in operation, the total length of the conveyor belt between the third guide roller closest to the feeding assembly and the second guide roller closest to the receiving assembly remains unchanged as the three movable rollers move in the left and right directions via the movable plate. When the movable plate is at the leftmost end, the length of the tape between the first guide roller and the second movable roller is the shortest, and the length of the tape between the first movable roller and the second guide roller is the longest. At this time, the workpiece with a protective film on its lower surface is moved above the second movable roller by the external conveying mechanism, so that the left end of the workpiece is located on the right side of the second movable roller. By driving the movable plate to move to the right, during this process, the tape between the first movable roller and the second guide roller moves upward to between the first guide roller and the second movable roller and is evenly adhered to the protective film on the lower surface of the workpiece under the action of the second movable roller. Then, by driving the movable plate to move to the left, during this process, the tape between the first guide roller and the second movable roller moves downward to between the first movable roller and the second guide roller, and the protective film is gradually peeled off from the lower surface of the workpiece by the adhesive force of the tape. When the tape with protective film adhering to it between the first guide roller and the second movable roller is discarded, the take-up motor of the take-up assembly is started again to rewind the waste tape with protective film while replenishing new tape. During this process, the take-up motor drives the take-up shaft and the power roller to rotate synchronously. The upper end of the rotating plate with clamping rollers installed at the lower end rotates away from the power roller under the action of the spring, thereby driving the angled roller at its lower end to squeeze the take-up shaft, ensuring that the tape between the power roller and the clamping roller is in close contact with the power roller. The waste tape moves towards the take-up shaft under the action of the power roller and is rewound onto the take-up shaft. At the same time, the new tape on the feeding assembly is replenished and re-replenished between the third guide roller and the second guide roller under the pull of the waste tape. When a roll of tape is used up, the base plate is moved to the front by the transfer cylinder, and a new roll of tape is transferred to the feeding assembly. At the same time, the waste roll on the receiving assembly is removed, and this cycle is repeated.

[0038] The high-efficiency film-tearing device of this invention utilizes movable rollers that reciprocate with a moving plate to achieve forward attachment and reverse tearing of the tape while the feeding and receiving components are stationary. This ensures the stability, uniformity, and controllability of the tape attachment and tearing rate, improves the tearing effect, avoids interference with the workpiece during the tearing process, and allows for stable winding of waste tape and simultaneous replenishment of tape during the receiving process after each tearing operation. Furthermore, it facilitates the installation of new tape rolls on the feeding component and the removal of waste rolls on the receiving component, thereby improving production efficiency.

[0039] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency film-removing device for removing protective film (300) from a workpiece (200), characterized in that: At least two workpieces (200) arranged from left to right each have a protective film (300) on their lower surface that can be removed. The upper surface of each workpiece (200) is adsorbed and engaged with a vacuum adsorption plate (400), which includes: a horizontally extending strip-shaped vertical plate (1), a first guide roller (2) rotatably disposed on the front side of the left end of the strip-shaped vertical plate (1), a second guide roller (3) rotatably disposed on the front side of the right end of the strip-shaped vertical plate (1), and an adhesive tape (100) for bonding with the protective film (300). The feeding assembly and the receiving assembly are respectively set below the strip vertical plate (1). The non-adhesive surface of the tape (100) set between the feeding assembly and the receiving assembly rolls in contact with the outer circumferential surfaces of the first guide roller (2) and the second guide roller (3). The receiving assembly further includes: a mounting vertical plate (16) connected to the strip vertical plate (1) at its upper end, a receiving shaft (17) rotatably mounted on the lower end of the mounting vertical plate (16), and a receiving motor (18) mounted on the rear surface of the mounting vertical plate (16). A drive roller (20) is fitted on the outside of a mandrel (19) rotatably mounted above a receiving shaft (17). One end of the mandrel (19) passes through a mounting plate (16) and is connected to the output shaft of a receiving motor (18). A pulley (21) is mounted on both the receiving shaft (17) and the mandrel (19) and is located on the rear side of the mounting plate (16). The two pulleys (21) are connected by a belt (22). A rotating plate (26) is provided on the front side of the mounting plate (16). The upper end of the rotating plate (26) is connected by a pin. (27) Rotatably mounted on the mounting vertical plate (16), the lower end of the rotating plate (26) is rotatably mounted with a clamping roller (28) parallel to one side of the power roller (20), a first connecting pin (291) is provided on the upper side of the rotating plate (26) opposite to the power roller (20), and a spring (29) is connected between the first connecting pin (291) and the second connecting pin (292) provided on the upper end face of the rotating plate (26), so that the clamping roller (28) mounted on the lower end of the rotating plate (26) and the power roller (20) are pressed against each other; On the front surface of the strip vertical plate (1) and between the first guide roller (2) and the second guide roller (3), a movable plate (5) that can move in the left and right direction is installed via a track (41) and a slider (42). The front sides of the left and right ends of the movable plate (5) are respectively rotatably provided with a first movable roller (6) and a second movable roller (7), and the second movable roller (7) on the right side is higher than the first movable roller (6). The tape (100) from the feeding assembly passes through the first guide roller (2) and the second movable roller (6) in sequence. The tape (100) is wound around the take-up shaft (17) between the wheel (7), the first movable roller (6), the second guide roller (3), the clamping roller (28) of the take-up assembly, and the power roller (20), so that the non-adhesive surface of the tape (100) rolls in contact with the outer circumferential surface of the second movable roller (7), and the adhesive surface of the tape (100) located between the first guide roller (2) and the second movable roller (7) is set with a protective film (300) facing the lower surface of the workpiece (200).

2. The high-efficiency film-tearing device according to claim 1, characterized in that: Also includes: A horizontally arranged base plate (38) and a base (30) mounted on the upper surface of the base plate (38) are provided. The lower part of the left end of the strip vertical plate (1) is connected to the upper part of the base (30). The feeding assembly is mounted on the base (30). A transfer cylinder (39) extending forward and backward is provided below the base plate (38). The movable part of the transfer cylinder (39) is connected to the base plate (38) and is used to drive the base plate (38) to move forward and backward. A guide rail (40) extending forward and backward is provided on both sides of the transfer cylinder (39). The lower surface of the base plate (38) is connected to each of the guide rails (40) by at least two sliders (41).

3. The high-efficiency film-tearing device according to claim 2, characterized in that: The transfer cylinder (39) is a rodless cylinder.

4. The high-efficiency film-tearing device according to claim 1, characterized in that: The workpiece (200) is a horizontally arranged steel plate, and the protective film (300) is a release film.

5. The high-efficiency film-tearing device according to claim 1, characterized in that: The second movable roller (7) and the clamping roller (28) are both elastic rollers.

6. The tape driving mechanism according to claim 1, characterized in that: A fourth guide roller (11) of the same height as the first guide roller (2) is rotatably disposed between the first guide roller (2) and the second movable roller (7). When the second movable roller (7) moves with the movable plate (5) to the left end of its stroke, the fourth guide roller (11) is disposed adjacent to the second movable roller (7).

7. The tape driving mechanism according to claim 6, characterized in that: The second movable roller (7) is at the same height as or slightly higher than the fourth guide roller (11), so that the adhesive surface of the tape (100) located between the first guide roller (2) and the second movable roller (7) remains horizontal or slightly inclined.

8. The tape driving mechanism according to claim 1, characterized in that: A third guide roller (10) is rotatably disposed directly below the first guide roller (2), and the first movable roller (6) is located vertically between the third guide roller (10) and the first guide roller (2).

9. The tape driving mechanism according to claim 1, characterized in that: A third movable roller (12) is rotatably provided on the front side of the movable plate (5). The third movable roller (12) is positioned at the same height as the second guide roller (3) and is located between the first movable roller (6) and the second movable roller (7) in the left-right direction.

10. The high-efficiency film-tearing device according to claim 1, characterized in that: The receiving shaft (17) and the mandrel (19) are each rotatably mounted on the mounting plate (16) via a bearing seat (23).

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