Automatic film tearing equipment

Abstract

The utility model discloses automatic film tearing equipment which comprises a strip-shaped vertical plate extending left and right, 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, and an adhesive tape used for being matched with a protective film in a bonding mode. The discharging assembly used for installing an adhesive tape roll formed by winding an adhesive tape comprises a base arranged below the left end of the strip-shaped vertical plate and a supporting disc arranged on the front side of the base, the discharging assembly is arranged at one end of a supporting shaft rotationally installed on the base in a sleeving mode, and a damper is installed at the position, located on the rear side of the base, of the other end of the supporting shaft. A plurality of floating blocks distributed at intervals in the circumferential direction are installed on the outer circumferential face of the supporting disc in an embedded mode, and one end, embedded into the supporting disc, of each floating block is connected with at least one supporting spring extending in the radial direction of the supporting disc. According to the utility model, the adhesive tape roll is convenient to assemble, disassemble and replace, the positioning stability of the adhesive tape roll can be ensured, and the condition of insufficient feeding caused by following rotation of the adhesive tape roll is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automated processing, in particular to an automated film-tearing device. Background Art

[0002] During the automated processing, in order to protect the product surface, a protective film needs to be attached to the surface of the processed workpiece. When the processing is completed or when entering the next process, the protective film needs to be removed. At present, the workpiece is generally removed by manual film tearing and mechanical film tearing. The manual film tearing method is roughly as follows: the operator uses his fingers to pull a corner of the film from the workpiece, and then pinches the corner to peel off the film. The manual film tearing method is labor-intensive and inefficient, and there is a risk of fingerprint contamination on the workpiece due to manual contact with the workpiece. Mechanical film tearing generally achieves automated operation by simulating manual film tearing. However, both manual and mechanical film tearing have the problem of not being able to tear off the film head quickly and accurately, and causing adverse interference to the workpiece when tearing off the film head. Utility Model Content

[0003] The main purpose of the utility model is to provide an automatic film tearing device, which can efficiently tear off the protective film through the tape, facilitate the loading and unloading and replacement of the tape roll, and ensure the stability of the tape roll positioning, avoiding insufficient material feeding due to the rotation of the tape roll.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automated film-tearing device for tearing off the protective film on the lower surface of a workpiece, comprising: a strip-shaped vertical plate extending left and right, a first guide roller rotatably arranged at the front side of the left end of the strip-shaped vertical plate, a second guide roller rotatably arranged at the front side of the right end of the strip-shaped vertical plate, and an adhesive tape for bonding with the protective film, wherein the non-adhesive surface of the adhesive tape disposed between the unwinding component and the receiving component is in rolling contact with the outer circumferential surface of each of the first guide roller and the second guide roller;

[0005] The cam is secured to the rear of the base and has a pivotal portion for securing the cam to the rear of the base, the pivot portion being a portion of a cam which is secured to the rear of the base and to the rear of the base.

[0006] The cam is an axially traversable wheel which is adapted to move the first and second guide rollers relative to each other and to provide a means for traversing the first and second guide rollers so as to allow the first and second guide rollers to move relative to each other.

[0007] The further improved scheme in the above technical scheme is as follows:

[0008] 1. In the above solution, the support shaft is provided with two baffles distributed on both sides of the support plate.

[0009] 2. In the above solution, each of the floating blocks is connected to two supporting springs.

[0010] 3. In the above solution, the outer surface of each floating block at one end opposite to the base is configured as an inwardly inclined slope.

[0011] 4. In the above solution, the workpiece is a horizontally arranged steel plate, and the protective film is a release film.

[0012] 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 to the left end of its stroke with the movable plate, the fourth guide roller is arranged adjacent to the second movable roller.

[0013] 6. In the above solution, the second movable roller is set as an elastic roller, and the second movable roller is at the same height as or 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 inclined.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The utility model discloses an automatic film tearing device, in which the non-adhesive surface of the adhesive tape arranged between the discharge component and the receiving component is in rolling contact with the outer circumferential surface of each of the first guide roller and the second guide roller. A movable plate which can be moved in the left and right directions is installed on the front surface of the strip vertical plate and is located between the first guide roller and the second guide roller through a track and a 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, and the second movable roller located on the right side is higher than the first movable roller. The adhesive tape from the discharge component passes through the first guide roller and the second guide roller in sequence. The first guide roller, the second movable roller, the first movable roller and the second guide roller then enter the receiving assembly, so that the adhesive surface of the tape whose non-adhesive surface is in rolling contact with the outer circumference of the second movable roller is in rolling contact with the outer circumference of the first movable roller, and the adhesive surface of the tape between the first guide roller and the second movable roller faces the protective film on the lower surface of the workpiece, and the protective film is torn off by the adhesive force of the tape, and in this process, the movable roller that moves back and forth with the movable plate is stationary between the material discharge and receiving assemblies. The tape can be attached and torn off in the forward and reverse directions in the state of being attached and torn off, thereby ensuring the stability, uniformity and controllability of the speed during the process of attaching and tearing off the tape, improving the effect of tearing off the film and avoiding interference with the workpiece during the tearing off process; further, the unloading assembly for installing the tape roll formed by winding the tape further includes: a base arranged below the left end of the strip vertical plate and a support plate arranged on the front side of the base, the support plate is mounted on one end of a support shaft rotatably mounted on the base, and a damper is installed on the other end of the support shaft and located at the rear side of the base, and the outer circle of the support plate A plurality of floating blocks are embedded and installed on the circumferential surface and are distributed at intervals along the circumferential direction. Each floating block that can move radially is embedded in the support plate and is connected to at least one supporting spring extending radially along the support plate at one end. The other end of the supporting spring connected to the floating block at one end is embedded in a receiving groove provided on the support plate, so that the outer end face of each floating block is in compression contact with the inner wall of the tape roll mounted on the support plate, which is convenient for loading, unloading and replacing the tape roll, and can ensure the stability of the positioning of the tape roll, thereby avoiding insufficient feeding due to the rotation of the tape roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the automatic film-tearing equipment of the utility model from a first-view perspective when the movable plate is retracted;

[0017] Figure 2 This is a schematic diagram of the overall structure of the automatic film tearing equipment of the utility model from a second perspective when the movable plate is retracted;

[0018] Figure 3 This is a schematic diagram of the local structure of the movable plate of the automatic film tearing equipment of the utility model;

[0019] Figure 4This is a schematic diagram of the local structure of the automatic film tearing equipment of the utility model when the movable plate is extended;

[0020] Figure 5 This is a schematic diagram of the structure of the roller of the automatic film tearing equipment of the utility model;

[0021] Figure 6 This is a schematic diagram of the partial structure of the discharge component of the automatic film tearing equipment of the present invention;

[0022] Figure 7 This is a schematic diagram of the partial structure of the support plate of the automatic film tearing equipment of the present invention.

[0023] In the above drawings: 100, adhesive tape; 200, workpiece; 300, protective film; 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 roller; 11, fourth guide roller; 12, third movable roller; 13, support shaft; 14, bearing; 15, retaining ring; 30, base; 31, support plate; 32, support shaft; 33, damper; 34, floating block; 35, support spring; 36, accommodating groove; 37, retaining plate. DETAILED DESCRIPTION

[0024] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0025] Example 1: An automated film-tearing device for removing a protective film 300 from the lower surface of a workpiece 200, comprising: a strip-shaped vertical plate 1 extending leftward and rightward, a first guide roller 2 rotatably disposed at the front side of the left end of the strip-shaped vertical plate 1, a second guide roller 3 rotatably disposed at 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, wherein the non-adhesive surface of the adhesive tape 100, disposed between a discharge assembly and a receiving assembly, rolls in contact with the outer circumferential surfaces of the first guide roller 2 and the second guide roller 3.

[0026] The unloading assembly for mounting the tape roll wound by the adhesive tape 100 further comprises: a base 30 arranged below the left end of the strip vertical plate 1 and a support plate 31 arranged on the front side of the base 30, the support plate 31 being fitted on one end of a support shaft 32 rotatably mounted on the base 30, the other end of the support shaft 32 and a damper 33 being mounted on the rear side of the base 30; a plurality of floating blocks 34 distributed along the circumference and spaced apart are embedded and mounted on the outer circumference of the support plate 31, and each of the floating blocks 34 which can move radially is embedded in the support plate 31 and is connected to at least one supporting spring 35 extending radially along the support plate 31 at one end, and the other end of the supporting spring 35 which is connected to the floating block 34 at one end is embedded in the receiving groove 36 provided on the support plate 31, so that the outer end surface of each floating block 34 is in compression contact with the inner wall of the tape roll fitted on the support plate 31;

[0027] A movable plate 5 that can move in the left and right directions 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 through 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 is higher than the first movable roller 6. The adhesive tape 100 from the discharge assembly passes through the first guide roller 2, the second movable roller 7, the first movable roller 6 and the second guide roller 3 in sequence and then enters the receiving assembly, so that the adhesive surface of the adhesive tape 100 whose non-adhesive surface is in rolling contact with the outer circumferential surface of the second movable roller 7 is in rolling contact with the outer circumferential surface of the first movable roller 6, and the adhesive surface of the adhesive tape 100 located between the first guide roller 2 and the second movable roller 7 is arranged toward the protective film 300 on the lower surface of the workpiece 200.

[0028] The support shaft 32 is provided with two baffles 37 located on both sides of the support plate 31 .

[0029] Two supporting springs 35 are connected to each of the floating blocks 34 .

[0030] The outer surface of each floating block 34 at one end opposite to the base 30 is configured as an inwardly inclined slope.

[0031] The workpiece 200 is a horizontally arranged steel plate, and the protective film 300 is a release film.

[0032] A fourth guide roller 11 having the same height as the first guide roller 2 is rotatably arranged between the first guide roller 2 and the second movable roller 7. When the second movable roller 7 moves to the left end of its stroke along with the movable plate 5, the fourth guide roller 11 is arranged adjacent to the second movable roller 7.

[0033] The second movable roller 7 configured as an elastic roller is at the same height as the fourth guide roller 11 , so that the adhesive surface of the adhesive tape 100 between the first guide roller 2 and the second movable roller 7 remains horizontal.

[0034] Example 2: An automated film-tearing device for removing a protective film 300 from the lower surface of a workpiece 200, comprising: a strip-shaped vertical plate 1 extending leftward and rightward, a first guide roller 2 rotatably disposed at the front side of the left end of the strip-shaped vertical plate 1, a second guide roller 3 rotatably disposed at 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, wherein the non-adhesive surface of the adhesive tape 100 disposed between a discharge assembly and a receiving assembly rolls in contact with the outer circumferential surfaces of the first guide roller 2 and the second guide roller 3;

[0035] The unloading assembly for mounting the tape roll wound by the adhesive tape 100 further comprises: a base 30 arranged below the left end of the strip vertical plate 1 and a support plate 31 arranged on the front side of the base 30, the support plate 31 being fitted on one end of a support shaft 32 rotatably mounted on the base 30, the other end of the support shaft 32 and a damper 33 being mounted on the rear side of the base 30; a plurality of floating blocks 34 distributed along the circumference and spaced apart are embedded and mounted on the outer circumference of the support plate 31, and each of the floating blocks 34 which can move radially is embedded in the support plate 31 and is connected to at least one supporting spring 35 extending radially along the support plate 31 at one end, and the other end of the supporting spring 35 which is connected to the floating block 34 at one end is embedded in the receiving groove 36 provided on the support plate 31, so that the outer end surface of each floating block 34 is in compression contact with the inner wall of the tape roll fitted on the support plate 31;

[0036] A movable plate 5 that can move in the left and right directions 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 through 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 is higher than the first movable roller 6. The adhesive tape 100 from the discharge assembly passes through the first guide roller 2, the second movable roller 7, the first movable roller 6 and the second guide roller 3 in sequence and then enters the receiving assembly, so that the adhesive surface of the adhesive tape 100 whose non-adhesive surface is in rolling contact with the outer circumferential surface of the second movable roller 7 is in rolling contact with the outer circumferential surface of the first movable roller 6, and the adhesive surface of the adhesive tape 100 located between the first guide roller 2 and the second movable roller 7 is arranged toward the protective film 300 on the lower surface of the workpiece 200.

[0037] The second movable roller 7 and the fourth guide roller 11 configured as elastic rollers are slightly higher than the fourth guide roller 11 , so that the adhesive surface of the adhesive tape 100 between the first guide roller 2 and the second movable roller 7 is slightly inclined.

[0038] The damper 33 is a magnetic powder brake purchased from outside, which always applies a force to the support shaft in the opposite direction of its rotation during the unloading process to ensure the tension of the tape.

[0039] A third guide wheel 10 is rotatably provided directly below the first guide roller 2 , and the first movable roller 6 is located between the third guide wheel 10 and the first guide roller 2 in the vertical direction.

[0040] A third movable roller 12 is rotatably provided on the front side of the movable plate 5 . The third movable roller 12 , which is provided 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.

[0041] A rodless cylinder 8 is installed on the rear surface of the above-mentioned strip vertical plate 1, and one end of a push block 9 is connected to the movable part 81 of the rodless cylinder 8. The other end of the above-mentioned push block 9 passes through a strip through hole 91 extending left and right on the strip vertical plate 1 and is embedded in the movable plate 5.

[0042] The above-mentioned adhesive tape 100 passes through the third guide wheel 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 in sequence, and the non-adhesive surface of the adhesive tape 100 is in rolling contact with the outer circumferential surface of the third guide wheel 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.

[0043] The above-mentioned first guide roller 2, second guide roller 3, third guide roller 10, fourth guide roller 11, first movable roller 6, second movable roller 7 and third movable roller 12 are all mounted on the outside of a support shaft 13 and are rotatably mounted on the support shaft 13 through two bearings 14 arranged at intervals. One end of the above-mentioned support shaft 13 arranged perpendicular to the strip vertical plate 1 and the movable plate 5 is installed on the strip vertical plate 1 or the movable plate 5.

[0044] The outer sides 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 are each provided with two spaced-apart retaining rings 15 , and the adhesive tape 100 is located between the two retaining rings 15 .

[0045] In the initial state, each floating block on the support plate moves radially to the outermost side under the action of the support spring, thereby protruding from the outer circumference of the support plate;

[0046] When in use, the single-sided adhesive tape roll is placed on the support plate of the unwinding component. During this process, each floating block is first squeezed and contracts radially inwardly toward the support plate. After the tape roll is placed on the support plate, each floating block exerts a radial outward force on the inner wall of the tape roll under the action of the supporting spring, thereby ensuring the stable installation of the tape roll and avoiding the problem of the tape roll rotating when the tape on the outer ring of the tape roll is pulled outward by the receiving component, thereby preventing the new tape from being replenished in a timely and stable manner.

[0047] After the tape roll is installed, one end of the tape on the outer ring is pulled out and passed through the third guide wheel, 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 before being wound onto the receiving assembly. The tape is kept taut and the adhesive surface of the tape between the first guide roller and the second movable roller faces upward.

[0048] When both the unloading assembly and the receiving assembly are in a non-working state, the total length of the tape between the third guide roller closest to the unloading assembly and the second guide roller closest to the receiving assembly remains unchanged during the process of the three movable rollers being driven in the left and right directions by the movable plate;

[0049] When the movable plate is at the leftmost end, the length of the adhesive tape between the first guide roller and the second movable roller is the shortest, and the length of the adhesive tape between the first movable roller and the second guide roller is the longest. At this time, the workpiece with the protective film on the lower surface is moved to the top of the second movable roller by the external transport mechanism so that the left end of the workpiece is located to the right of the second movable roller;

[0050] By driving the movable plate to move rightward, during this process, the adhesive 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;

[0051] Then, the movable plate is driven to move to the left. During this process, the adhesive 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 torn off from the lower surface of the workpiece by the adhesive force of the adhesive tape.

[0052] Next, the material receiving component is started to rewind the waste tape with the protective film and at the same time pull the tape roll installed on the support disk to rotate and release new tape to replenish it between the third guide wheel and the second guide roller. The damper on the support shaft that rotates with the support disk applies a force opposite to the rotation direction of the support shaft to ensure the tension of the tape.

[0053] The automatic film tearing equipment of the present invention realizes the forward attachment and reverse tearing of the tape by the movable roller which moves back and forth with the movable plate when the material discharging and receiving components are stationary, thereby ensuring the stability, uniformity and controllability of the speed during the tape attachment and tearing process, improving the film tearing effect and avoiding interference with the workpiece during the film tearing process; furthermore, it is convenient for loading and unloading and replacing the tape roll, and can ensure the stability of the positioning of the tape roll, avoiding the situation of insufficient feeding due to the rotation of the tape roll.

[0054] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. An automated film-tearing device for tearing off a protective film (300) on the lower surface of a workpiece (200), characterized in that: The invention comprises: a strip-shaped vertical plate (1) extending left and right, a first guide roller (2) rotatably arranged at the front side of the left end of the strip-shaped vertical plate (1), a second guide roller (3) rotatably arranged at 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), wherein the non-adhesive surface of the adhesive tape (100) arranged between the discharge component and the receiving component is in rolling contact with the outer circumferential surface of each of the first guide roller (2) and the second guide roller (3); The unloading assembly for installing the tape roll formed by winding the tape (100) further includes: a base (30) arranged below the left end of the strip vertical plate (1) and a support plate (31) arranged on the front side of the base (30), the support plate (31) is mounted on one end of a support shaft (32) rotatably mounted on the base (30), the other end of the support shaft (32) is located at the rear side of the base (30) and a damper (33) is installed, and a plurality of Circumferentially spaced floating blocks (34) are provided, each of the floating blocks (34) being movable in the radial direction. One end of each of the floating blocks (34) embedded in the support disk (31) is connected to at least one support spring (35) extending radially along the support disk (31). The other end of the support spring (35) connected to the floating block (34) is embedded in a receiving groove (36) provided on the support disk (31), so that the outer end surface of each of the floating blocks (34) is in compression contact with the inner wall of the tape roll mounted on the support disk (31); A movable plate (5) movable in the left-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) through a track (41) and a slider (42). The front sides of the left and right ends of the movable plate (5) are 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 adhesive tape (100) from the unloading assembly is sequentially passed through After passing through the first material guide roller (2), the second movable roller (7), the first movable roller (6) and the second material guide roller (3), the adhesive tape (100) enters the material receiving assembly, so that the adhesive surface of the adhesive tape (100) whose non-adhesive surface is in rolling contact with the outer circumference of the second movable roller (7) is in rolling contact with the outer circumference of the first movable roller (6), and the adhesive surface of the adhesive tape (100) located between the first material guide roller (2) and the second movable roller (7) is disposed toward the protective film (300) on the lower surface of the workpiece (200).

2. The automatic film tearing equipment according to claim 1, characterized in that: The support shaft (32) is provided with two baffle plates (37) distributed on both sides of the support plate (31).

3. The automatic film tearing equipment according to claim 1, characterized in that: Two supporting springs (35) are connected to each of the floating blocks (34).

4. The automatic film tearing equipment according to claim 1, characterized in that: The outer surface of each floating block (34) at one end opposite to the base (30) is configured as an inwardly inclined slope.

5. The automatic film tearing equipment 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.

6. The automatic film tearing equipment according to claim 1, characterized in that: A fourth material guide roller (11) having the same height as the first material guide roller (2) is rotatably arranged between the first material guide roller (2) and the second movable roller (7); when the second movable roller (7) moves to the left end of its travel along with the movable plate (5), the fourth material guide roller (11) is arranged adjacent to the second movable roller (7).

7. The automatic film tearing device according to claim 6, characterized in that: The second movable roller (7) is configured as an elastic roller, and the second movable roller (7) is at the same height as or higher than the fourth material guide roller (11), thereby enabling the adhesive surface of the adhesive tape (100) between the first material guide roller (2) and the second movable roller (7) to remain horizontal or inclined.

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