Tear-off mechanism for product protection layer

Abstract

The utility model discloses a tearing mechanism for a product protection layer, which is used for tearing a protection film on the lower surface of a workpiece and comprises a horizontally arranged bottom base plate, a base arranged on the upper surface of the bottom base plate, a strip-shaped vertical plate extending left and right and an adhesive tape used for being matched with the protection film in a bonding mode, and the lower portion of the left end of the strip-shaped vertical plate is connected with the upper portion of the base. A feeding assembly is installed on the base, a receiving assembly is installed below the right end of the strip-shaped vertical plate, a first material guide roller and a second material guide roller are rotatably arranged on the front sides of the left end and the right end of the strip-shaped vertical plate respectively, a transferring air cylinder extending front and back is arranged below the bottom base plate, and a movable part of the transferring air cylinder is connected with the bottom base plate. The transferring air cylinder is used for driving the bottom base plate to move front and back, the two sides of the transferring air cylinder are each provided with a guide rail extending front and back, and the lower surface of the bottom base plate is connected with each guide rail through at least two sliding blocks in a matched mode. According to the utility model, a new adhesive tape roll on the discharging assembly and a waste roll on the receiving assembly can be conveniently mounted, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic processing technical field, especially relate to a tear -off mechanism of product protection layer. BACKGROUND

[0002] In the automatic processing production line, usually need to paste a layer of protective film on the product surface, to improve the protection of the product has been processed area. And in the above product and other components are bonded processing, then need to tear off the protective film to facilitate subsequent processing. The prior art on the product protective film tear, usually tear film mode includes traditional manual tear film and through the mechanical hand's jaw clamping protective film, tear off the protective film.

[0003] Because the film to be torn product is usually more expensive and fragile, unnecessary contact with the product when tearing the film can damage the product. Manual tear film will inevitably touch the surface of the film to be torn product, causing assembly display and other defects in the subsequent process, resulting in the decline of product quality; and manual tear film speed is greatly affected by the proficiency of personnel, labor intensity is also large, low production efficiency, high cost. In addition, when the protective film is completely bonded on the product and does not have a tear film angle, manual tear film or mechanical jaw tear film method needs to be inserted from the gap between the protective film and the product during the tear film process, which is difficult to tear the film and can affect the quality of the film to be torn product, with low tear film success rate. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a tear-off mechanism of product protection layer, which can efficiently tear off the protective film by adhesive tape, facilitate the installation of new adhesive tape roll on the feeding assembly and the disassembly of waste roll on the collecting assembly, and improve production efficiency.

[0005] To achieve the above purpose, the utility model adopts the technical scheme: a tear-off mechanism of product protection layer is used for tearing off the protective film on the lower surface of a workpiece, comprising: a bottom base plate arranged horizontally, a base installed on the upper surface of the bottom base plate, left and right extending strip-shaped vertical plates, and an adhesive tape used for bonding with the protective film, the lower part of the left end of the strip-shaped vertical plate is connected with the upper part of the base, a feeding assembly is installed on the base, a collecting assembly is installed below the right end of the strip-shaped vertical plate, the front side of the left and right ends of the strip-shaped vertical plate is respectively rotatably provided with a first material guide roller and a second material guide roller, the non-adhesive surface of the adhesive tape arranged between the feeding assembly and the collecting assembly is in rolling contact with the outer circumferential surface of the first material guide roller and the second material guide roller respectively, a front and rear extending moving cylinder is arranged below the bottom base plate, the movable part of the moving cylinder is connected with the bottom base plate, used for driving the bottom base plate to move forward and backward, a front and rear extending guide rail is arranged on the both sides of the moving cylinder, and the lower surface of the bottom base plate is connected with each guide rail through at least two second sliding blocks respectively.

[0006] On the front surface of the strip vertical plate, between the first and second guide rollers, a movable plate that can move in the left and right direction is mounted via a track and a first slider. The front sides of the left and right ends of the movable plate are respectively rotatably provided with a first movable roller and a 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 through the first guide roller, the second movable roller, the first movable roller, and the second guide roller in sequence before entering the receiving assembly. 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.

[0007] The following are further improvements to the above technical solution:

[0008] 1. In the above scheme, the transfer cylinder is a rodless cylinder.

[0009] 2. In the above scheme, the workpiece is a horizontally arranged steel plate, and the protective film is a release film.

[0010] 3. In the above scheme, a rodless cylinder is installed on the rear surface of the strip vertical plate, one end of a push block is connected to the movable part of the rodless cylinder, and the other end of the push block passes through the strip-shaped through hole extending left and right on the strip vertical plate and is embedded in the movable plate.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] The tear-off mechanism of the protective layer of the utility model product, the non-adhesive surface of the adhesive tape between the material discharging assembly and the material collecting assembly is in rolling contact with the outer circumferential surface of the first material guide roller and the second material guide roller respectively, a movable plate that can move in the left-right direction is installed on the front surface of the strip-shaped vertical plate between the first material guide roller and the second material guide roller through a track and the first sliding block, the front side of the left and right ends of the movable plate is rotatably provided with the first movable roller and the second movable roller respectively, and the second movable roller on the right side is higher than the first movable roller, the adhesive tape from the material discharging assembly enters the material collecting assembly after passing through the first material guide roller, the second movable roller, the first movable roller and the second material guide roller in sequence, so that the adhesive surface of the adhesive tape in rolling contact with the outer circumferential surface of the second movable roller is in rolling contact with the outer circumferential surface of the first movable roller, and the adhesive surface of the adhesive tape between the first material guide roller and the second movable roller is arranged towards the protective film of the lower surface of the workpiece, the adhesive surface of the adhesive tape is attached to the protective film, and then the protective film is torn off through the adhesive force of the adhesive tape, and in this process, the movable roller reciprocating with the movable plate realizes the forward attachment and reverse tearing of the adhesive tape in the state that the material discharging assembly and the material collecting assembly are stationary, so that the stability, uniformity and controllability of the adhesive tape attachment and tearing rate are ensured, the film tearing effect is improved, and the interference on the workpiece in the film tearing process is avoided; further, a front-rear extending moving cylinder is arranged below the bottom base plate, the movable part of the moving cylinder is connected with the bottom base plate and is used for driving the bottom base plate to move forward and backward, a front-rear extending guide rail is arranged on the left and right sides of the moving cylinder respectively, and the lower surface of the bottom base plate is connected with each guide rail through at least two second sliding blocks respectively, so that the installation of the new adhesive tape roll on the material discharging assembly and the dismounting of the waste roll on the material collecting assembly are facilitated, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the first perspective view of the overall structure of the tear-off mechanism of the protective layer of the utility model product when the movable plate is contracted.

[0014] Figure 2 It is the second perspective view of the overall structure of the tear-off mechanism of the protective layer of the utility model product when the movable plate is contracted.

[0015] Figure 3 It is the first perspective view of the overall structure of the tear-off mechanism of the protective layer of the utility model product when the movable plate is contracted. Figure 2 It is the first perspective view of the overall structure of the tear-off mechanism of the protective layer of the utility model product when the movable plate is contracted.

[0016] Figure 4 It is the first perspective view of the overall structure of the tear-off mechanism of the protective layer of the utility model product when the movable plate is contracted.

[0017] Figure 5 It is the first perspective view of the overall structure of the tear-off mechanism of the protective layer of the utility model product when the movable plate is contracted.

[0018] In the above drawings: 100, adhesive tape; 200, workpiece; 300, protective film; 1, strip-shaped vertical plate; 2, first material guiding roller; 3, second material guiding roller; 41, track; 42, first sliding block; 5, movable plate; 6, first movable roller; 7, second movable roller; 8, rodless cylinder; 81, movable part; 9, push block; 91, strip-shaped through hole; 10, third material guiding roller; 11, fourth material guiding roller; 12, third movable roller; 13, supporting shaft; 14, bearing; 15, blocking ring; 30, base; 38, bottom base plate; 39, moving cylinder; 40, guide rail; 43, second sliding block. DETAILED DESCRIPTION

[0019] The present patent can be further understood from the specific examples given below, which are not limitations of the present patent.

[0020] Embodiment 1: A protective layer tearing mechanism for tearing the protective film 300 on the lower surface of a workpiece 200, comprising: a horizontally arranged bottom base plate 38, a base 30 mounted on the upper surface of the bottom base plate 38, a strip-shaped vertical plate 1 extending left and right, and an adhesive tape 100 for adhesion with the protective film 300, wherein the lower part of the left end of the strip-shaped vertical plate 1 is connected to the upper part of the base 30, a material feeding assembly is mounted on the base 30, a material collecting assembly is mounted below the right end of the strip-shaped vertical plate 1, first and second material guiding rollers 2 and 3 are rotatably arranged on the front sides of the left and right ends of the strip-shaped vertical plate 1 respectively, the non-adhesive surface of the adhesive tape 100 arranged between the material feeding and collecting assemblies is in rolling contact with the outer circumferential surfaces of the first and second material guiding rollers 2 and 3 respectively, a front and back extending moving cylinder 39 is arranged below the bottom base plate 38, the movable part of the moving cylinder 39 is connected to the bottom base plate 38 for driving the bottom base plate 38 to move forward and backward, front and back extending guide rails 40 are arranged on the two sides of the moving cylinder 39 respectively, and the lower surface of the bottom base plate 38 is connected to each of the guide rails 40 through at least two second sliding blocks 43 respectively;

[0021] A movable plate 5 is mounted on the front surface of the strip-shaped vertical plate 1 between the first and second material guiding rollers 2 and 3 through a track 41 and a first sliding block 42, the first and second movable rollers 6 and 7 are rotatably arranged on the front sides of the left and right ends of the movable plate 5 respectively, and the second movable roller 7 on the right side is higher than the first movable roller 6, the adhesive tape 100 from the material feeding assembly passes through the first material guiding roller 2, the second movable roller 7, the first movable roller 6 and the second material guiding roller 3 in sequence and then enters the material collecting assembly, so that the adhesive surface of the adhesive tape 100 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 between the first and second material guiding rollers 2 and 7 is arranged towards the protective film 300 on the lower surface of the workpiece 200.

[0022] When the product protection layer tearing mechanism starts to work, the movable plate moves to the right to the far right end, the fourth material guide roller, the first movable roller and the second movable roller move to the far right end, in this process, the adhesive tape will move with the movable plate and be attached to the workpiece, when the movable plate reaches the far right end, the adhesive tape is attached to the workpiece, the movable plate starts to move left to the original position, the fourth material guide roller, the first movable roller and the second movable roller also return to the original position, the material collecting assembly operates to collect the adhesive tape attached to the workpiece, in this process, due to the adhesive property of the adhesive tape, the protective film attached to the workpiece will be torn off, achieving a film tearing effect.

[0023] The above-mentioned transfer cylinder 39 is a rodless cylinder.

[0024] The above-mentioned workpiece 200 is a horizontally arranged steel plate, and the above-mentioned protective film 300 is a release film.

[0025] A rodless cylinder 8 is installed on the rear surface of the strip-shaped vertical plate 1, one end of a push block 9 is connected to the movable part 81 of the rodless cylinder 8, and the other end of the push block 9 passes through a strip-shaped through hole 91 extending left and right on the strip-shaped vertical plate 1 and is embedded in the movable plate 5.

[0026] In embodiment 2, a product protection layer tearing mechanism for tearing off the protective film 300 on the lower surface of the workpiece 200 includes a horizontally arranged base plate 38, a base 30 installed on the upper surface of the base plate 38, a strip-shaped vertical plate 1 extending left and right, and an adhesive tape 100 for adhesion with the protective film 300, the lower part of the left end of the strip-shaped vertical plate 1 is connected to the upper part of the base 30, a material feeding assembly is installed on the base 30, a material collecting assembly is installed below the right end of the strip-shaped vertical plate 1, a first material guide roller 2 and a second material guide roller 3 are respectively rotatably arranged on the front side of the left and right ends of the strip-shaped vertical plate 1, the non-adhesive surface of the adhesive tape 100 arranged between the material feeding assembly and the material collecting assembly is in rolling contact with the outer circumferential surface of each of the first material guide roller 2 and the second material guide roller 3, a front and back extending transfer cylinder 39 is arranged below the base plate 38, the movable part of the transfer cylinder 39 is connected to the base plate 38 for driving the base plate 38 to move forward and backward, a front and back extending guide rail 40 is arranged on the two sides of the transfer cylinder 39, and at least two second sliding blocks 43 are respectively arranged between the lower surface of the base plate 38 and each of the guide rails 40.

[0027] The movable plate 5 is installed on the front side surface of the strip-shaped vertical plate 1 between the first material guide roller 2 and the second material guide roller 3 through the track 41 and the first sliding block 42, and the first movable roller 6 and the second movable roller 7 are rotatably arranged at the left and right ends of the front side of the movable plate 5, respectively, and the second movable roller 7 on the right side is higher than the first movable roller 6, the adhesive tape 100 from the feeding assembly passes through the first material guide roller 2, the second movable roller 7, the first movable roller 6 and the second material guide roller 3 in sequence, and then enters the collecting assembly, so that the adhesive surface of the adhesive tape 100 that is in rolling contact with the outer circumferential surface of the second movable roller 7 and located between the first material guide roller 2 and the second movable roller 7 is arranged towards the protective film 300 on the lower surface of the workpiece 200.

[0028] A third material guide roller 10 is rotatably arranged directly below the first material guide roller 2, and the first movable roller 6 is located between the third material guide roller 10 and the first material guide roller 2 in the vertical direction.

[0029] A fourth material guide roller 11 is rotatably arranged between the first material guide roller 2 and the second movable roller 7 and is at the same height as the first material guide roller 2, and when the second movable roller 7 moves to the left end of the stroke of the movable plate 5, the fourth material guide roller 11 is arranged adjacent to the second movable roller 7.

[0030] The second movable roller 7 is at the same height or slightly higher than the fourth material guide roller 11, so that the adhesive surface of the adhesive tape 100 located between the first material guide roller 2 and the second movable roller 7 is kept horizontal or slightly inclined.

[0031] A third movable roller 12 is rotatably arranged on the front side of the movable plate 5 and is located between the first movable roller 6 and the second movable roller 7 in the left-right direction and is at the same height as the second material guide roller 3.

[0032] The adhesive tape 100 passes through the third material guide roller 10, the first material guide roller 2, the fourth material guide roller 11, the second movable roller 7, the first movable roller 6, the third movable roller 12 and the second material guide roller 3 in sequence, and the non-adhesive surface of the adhesive tape 100 is in rolling contact with the outer circumferential surfaces of the third material guide roller 10, the first material guide roller 2, the fourth material guide roller 11, the second movable roller 7, the third movable roller 12 and the second material guide roller 3.

[0033] The first material guide roller 2, the second material guide roller 3, the third material guide roller 10, the fourth material guide roller 11, the first movable roller 6, the second movable roller 7 and the third movable roller 12 are sleeved outside a supporting shaft 13 and rotatably installed on the supporting shaft 13 through two interval arranged bearings 14, and one end of the supporting shaft 13, which is perpendicular to the strip-shaped vertical plate 1 and the movable plate 5, is installed on the strip-shaped vertical plate 1 or the movable plate 5.

[0034] The outer side of each of the first material guide roller 2, the second material guide roller 3, the third material guide roller 10, the fourth material guide roller 11, the first movable roller 6 and the third movable roller 12 is sleeved with two interval arranged blocking rings 15, and the adhesive tape 100 is located between the two blocking rings 15.

[0035] In use, the bottom base plate is first moved to the most front side through the moving cylinder, the single-sided back adhesive tape in roll is then installed on the material feeding assembly, and then one end of the adhesive tape is pulled out to be wound on the material collecting assembly in sequence through the third material guide roller, the first material guide roller, the fourth material guide roller, the second movable roller, the first movable roller, the third movable roller and the second material guide roller, and the adhesive tape is kept in tension and the adhesive surface of the adhesive tape between the first material guide roller and the second movable roller faces upward;

[0036] After the transfer of the adhesive tape roll and the initial setting are completed, the bottom base plate is moved to the most rear side through the moving cylinder, and then the film tearing operation process is performed;

[0037] When the material feeding assembly and the material collecting assembly are both in the non-working state, the total length of the adhesive tape between the third material guide roller closest to the material feeding assembly and the second material guide roller closest to the material collecting assembly remains unchanged during the movement of the three movable rollers in the left-right direction driven by the movable plate;

[0038] When the movable plate is located at the most left end, the length of the adhesive tape between the first material 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 material guide roller is the longest, at this time, the workpiece with the protective film on the lower surface is moved above the second movable roller and the left end of the workpiece is located to the right of the second movable roller through the external carrying mechanism;

[0039] The movable plate is driven to move rightward, during which the adhesive tape between the first movable roller and the second material guide roller moves upward to between the first material guide roller and the second movable roller and is evenly pasted on the protective film on the lower surface of the workpiece under the action of the second movable roller;

[0040] The movable plate is then driven to move leftward, during which the adhesive tape between the first material guide roller and the second movable roller moves downward to between the first movable roller and the second material guide roller and gradually tears off the protective film from the lower surface of the workpiece through the adhesive force of the adhesive tape;

[0041] Then, the feeding assembly and the receiving assembly are started, and the waste adhesive tape with the protective film is wound while new adhesive tape is supplemented;

[0042] When the feeding assembly is started, if the adhesive tape is insufficient, the light beams on both sides of the bottom substrate cannot receive the feedback signal of the adhesive tape, at this time, the tearing mechanism of the product protective layer stops working, the transplanting cylinder works, the feeding assembly moves to the end of the guide rail along the guide rail, the replacement of the adhesive tape is carried out, the new adhesive tape roll is replaced on the feeding assembly, and the waste roll on the receiving assembly is removed.

[0043] The tearing mechanism of the product protective layer of the utility model realizes the forward attachment and reverse tearing of the adhesive tape in the state that the feeding and receiving assemblies are static through the movable roller which reciprocates with the movable plate, so as to ensure the stability, uniformity and controllability of the speed in the adhesive tape attachment and tearing process, improve the film tearing effect, avoid the interference on the workpiece in the film tearing process, further facilitate the installation of the new adhesive tape roll on the feeding assembly and the disassembly of the waste roll on the receiving assembly, and improve the production efficiency.

[0044] The above examples are only for illustrating the technical concept and characteristics of the utility model, the purpose is to enable the person skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent change or modification according to the spirit and essence of the utility model should be covered in the protection scope of the utility model.

Claims

1. A product protection layer tearing mechanism for tearing a protective film (300) on a lower surface of a workpiece (200), characterized in that: The utility model relates to a kind of strip-shaped vertical plate (1) and the adhesive tape (100) for being bonded with protective film (300) cooperation, including: horizontally arranged bottom substrate (38), pedestal (30) installed on the upper surface of bottom substrate (38), left and right extending strip-shaped vertical plate (1) and the adhesive tape (100) for being bonded with protective film (300) cooperation, the lower part of left end of the strip-shaped vertical plate (1) is connected with the upper part of pedestal (30), a material feeding assembly is installed on the pedestal (30), a material collecting assembly is installed below the right end of strip-shaped vertical plate (1), the front side of left and right ends of the strip-shaped vertical plate (1) is rotatably provided with first material guide roller (2), second material guide roller (3) respectively, the non-adhesive surface of the adhesive tape (100) between material feeding assembly and material collecting assembly is rolled contact with the outer circumferential surface of first material guide roller (2), second material guide roller (3) respectively, the lower side of bottom substrate (38) is provided with a front and back extending transfer cylinder (39), the movable part of this transfer cylinder (39) is connected with bottom substrate (38), for driving bottom substrate (38) to move forward and backward, the both sides of the transfer cylinder (39) are provided with a front and back extending guide rail (40) respectively, the lower surface of bottom substrate (38) is connected with each guide rail (40) by at least two second sliders (43) respectively; The front surface of the strip-shaped vertical plate (1) and between first material guide roller (2) and second material guide roller (3) are provided with a movable plate (5) that can move along left and right directions by track (41) and first slider (42), the front side of left and right ends of the movable plate (5) is rotatably provided with first movable roller (6), second movable roller (7) respectively and the second movable roller (7) on the right side is higher than first movable roller (6), the adhesive tape (100) from material feeding assembly enters material collecting assembly after passing through first material guide roller (2), second movable roller (7), first movable roller (6) and second material guide roller (3) in turn, so that the adhesive surface of the adhesive tape (100) that is rolled contact with the outer circumferential surface of second movable roller (7) is rolled contact with the outer circumferential surface of first movable roller (6) and the adhesive surface of adhesive tape (100) between first material guide roller (2) and second movable roller (7) is arranged towards the protective film (300) of the lower surface of workpiece (200). The transfer cylinder (39) is a rodless cylinder.

2. A tear-off mechanism for a product protection layer according to claim 1, characterized in that: The workpiece (200) is horizontally arranged steel plate, and the protective film (300) is release film.

3. The tear-off mechanism of a product protection layer according to claim 1, characterized in that: A rodless cylinder (8) is installed on the back surface of the strip-shaped vertical plate (1), one end of a push block (9) is connected with 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) extending left and right on the strip-shaped vertical plate (1) and is embedded in the movable plate (5).

4. The tear-off mechanism of a product protection layer according to claim 1, characterized in that: ​

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