A back adhesive tape and its automatic continuous die cutting device

Abstract

The utility model relates to related technical field of adhesive tape processing, specifically is a kind of automatic continuous die cutting device, for cutting to adhesive tape ontology, the die cutting device includes workbench, and the workbench is sequentially provided with tape feeding roller and take-up roller along the conveying direction of the adhesive tape ontology;It further includes mounting bracket installed on the workbench, the mounting bracket is provided with lifting cutting part, and the mounting bracket is installed with reciprocating moving part that can control the movement of lifting cutting part;Intermittent driving part is set on the workbench, is connected lifting cutting part and reciprocating moving part respectively, and the utility model is intermittently carried out by control to the conveying of adhesive tape ontology and die cutting work, and the position of lifting cutting part changes with the movement of adhesive tape, so that lifting cutting part can continuously cut the interval of both sides of adhesive tape, to realize that the both ends of adhesive tape ontology form first sawtooth and second sawtooth, increase the friction coefficient of adhesive tape ontology edge.

Description

Technical Field

[0001] This utility model relates to the technical field of tape processing, specifically to an adhesive tape and its automatic continuous die-cutting device. Background Technology

[0002] In the packaging tape industry, various precision die-cut tapes in roll form are developed to meet the special requirements of automobiles, mobile phones, electronics, and electrical appliances. Die-cutting is a core forming technology in packaging tape production. It mainly involves combining die-cutting blades and creasing blades to form a die-cutting plate, which cuts the tape roll into a specific shape under pressure. This process is often combined with creasing to meet the customized needs of the automotive, electronics, and other fields for precision tape products.

[0003] When processing existing tapes, automatic die-cutting devices can cut the tapes into long strips. The tape body is very thin, making it difficult for workers to find the tape ends when using it. If the edges are completely smooth after die-cutting, workers need to repeatedly feel around to find the peeling point, which may cause the main body of the tape to be accidentally torn, resulting in damage to the effective adhesive surface. Summary of the Invention

[0004] The purpose of this invention is to provide an adhesive tape and its automatic continuous die-cutting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An adhesive tape includes a tape body, on both sides of which a first serration and a second serration are formed respectively. The first serration and the second serration each include a plurality of concave portions and convex portions, and the concave portions and the convex portions are spaced apart. Along the width direction of the tape body, the concave and convex portions on the first saw tooth are aligned with the convex and concave portions on the second saw tooth.

[0006] An automatic continuous die-cutting device is used to cut the tape body described above. The die-cutting device includes a worktable, on which a tape feeding roller and a tape taking roller are arranged sequentially along the conveying direction of the tape body. It also includes a mounting frame installed on the workbench, the mounting frame being provided with a lifting cutting component, and the mounting frame being equipped with a reciprocating moving component capable of controlling the movement of the lifting cutting component, for die-cutting both sides of the tape body; An intermittent drive component is disposed on the worktable and is connected to the lifting and cutting component and the reciprocating moving component, respectively.

[0007] As described above, the automatic continuous die-cutting device has pressure rollers symmetrically arranged on the worktable, and the pressure rollers are rotatably connected to the worktable.

[0008] As described above, the automatic continuous die-cutting device includes a cam rotatably mounted on the mounting frame, and a protrusion is provided at the eccentric position of the cam. It also includes a movable plate, the two ends of which are slidably connected to guide rods mounted on the mounting frame. A second sliding groove is formed on one side of the movable plate to slide and adapt to the protrusion, and a first sliding groove is formed on the other side. A slider is slidably disposed in the first sliding groove.

[0009] The automatic continuous die-cutting device as described above: the lifting and cutting component includes a grooved roller rotatably mounted on the moving plate, a limiting groove is formed on the grooved roller, and a lifting cylinder fixed to the slider is slidably sleeved along the axial direction of the grooved roller, and ball bearings that slide and cooperate with the limiting groove are movably arranged on the wall of the lifting cylinder.

[0010] The automatic continuous die-cutting device as described above: the intermittent drive component includes a drive shaft rotatably mounted on the worktable, the drive shaft being driven to rotate by a motor mounted on the worktable, an intermittent transmission wheel being sleeved on the drive shaft, and a first driven shaft and a second driven shaft rotatably connected to the worktable respectively on the intermittent transmission wheel, the first driven shaft being connected to a telescopic transmission component disposed on the mounting frame via a third toothed belt, the second driven shaft being connected to a transmission shaft rotatably mounted on the mounting frame via a fourth toothed belt, and the transmission shaft being connected to the cam shaft via a first bevel gear set.

[0011] The automatic continuous die-cutting device as described above: the telescopic transmission component includes a telescopic cylinder rotatably mounted on the mounting frame, and the telescopic cylinder is connected to the first driven shaft through the third toothed belt; It also includes a telescopic shaft, which is arranged along the axis of the telescopic cylinder and slidably inserted into the telescopic cylinder. A connecting plate with an L-shaped structure is rotatably mounted on the grooved roller. The other end of the connecting plate is rotatably connected to the telescopic shaft. The telescopic shaft is connected to the grooved roller through a second bevel gear set.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By activating the intermittent drive, the feeding roller and take-up roller rotate simultaneously at the same frequency. After the uncut tape is conveyed to the lower end of the lifting cutter, the lifting cutter presses down when the feeding roller and take-up roller stop rotating under the intermittent drive. During the pressing process, the lifting cutter cuts the edge of the tape body, creating concave portions on the tape. After cutting, the lifting cutter automatically resets. As the feeding roller and take-up roller rotate, the position of the lifting cutter changes with the movement of the tape, allowing the lifting cutter to continuously cut the tape at intervals on both sides. This creates first and second serrations at both ends of the tape body, increasing the friction coefficient of the tape body edge and facilitating manual tearing or positioning during use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of adhesive tape.

[0014] Figure 2 This is a schematic diagram of an automatic continuous die-cutting device.

[0015] Figure 3 This is a schematic diagram of the mounting frame and reciprocating moving parts in an automatic continuous die-cutting device.

[0016] Figure 4 This is a schematic diagram of the mounting frame and intermittent drive components in an automatic continuous die-cutting device.

[0017] Figure 5 This is a schematic diagram of the intermittent drive component in an automatic continuous die-cutting device.

[0018] Figure 6 This is a schematic diagram of the telescopic transmission component in an automatic continuous die-cutting device.

[0019] Figure 7 This is a schematic diagram of the lifting and cutting components in an automatic continuous die-cutting device.

[0020] In the diagram: 1. Workbench; 2. Feeding roller; 3. First toothed belt; 4. Pressure roller; 5. Taking-up roller; 6. Second toothed belt; 7. Mounting frame; 8. Motor; 9. Drive shaft; 10. Intermittent transmission wheel; 11. First driven shaft; 12. Second driven shaft; 13. Third toothed belt; 14. Fourth toothed belt; 15. Telescopic cylinder; 16. Telescopic shaft; 17. Transmission shaft; 18. First bevel gear set; 19. Cam; 1901. Protruding post; 20. Moving plate; 2001. First chute; 2002. Second chute; 21. Slider; 22. Grooved roller; 2201. Limiting groove; 23. Connecting plate; 24. Lifting cylinder; 2401. Cutting blade; 25. Guide rod; 26. Second bevel gear set. Detailed Implementation

[0021] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0022] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0023] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0024] Please see Figures 1-7 In this embodiment of the utility model, an adhesive tape includes a tape body, on both sides of which a first serration and a second serration are formed respectively. The first serration and the second serration each include a plurality of concave portions and convex portions, and the concave portions and the convex portions are spaced apart. Along the width direction of the tape body, the concave and convex portions on the first saw tooth are aligned with the convex and concave portions on the second saw tooth.

[0025] Please see Figure 1 The tape body is die-cut on both sides by an automatic continuous die-cutting device, so that the two ends of the tape body have a first serration and a second serration. The setting of the first serration and the second serration can increase the friction coefficient of the tape body edge, making it easier for manual tearing or positioning during use.

[0026] An automatic continuous die-cutting device is used to cut the tape body described above. The die-cutting device includes a worktable 1, on which a tape feeding roller 2 and a tape taking roller 5 are arranged sequentially along the conveying direction of the tape body. It also includes a mounting frame 7 installed on the workbench 1, the mounting frame 7 is provided with a lifting cutting component, and the mounting frame 7 is also equipped with a reciprocating moving component that can control the movement of the lifting cutting component, for die-cutting both sides of the tape body; An intermittent drive component is disposed on the worktable 1 and is connected to the lifting and cutting component and the reciprocating moving component, respectively.

[0027] In one embodiment, the unloading roller 2 and the take-up roller 5 are directly rotatably connected via the first toothed belt 3.

[0028] In this embodiment, by activating the intermittent drive, the feeding roller 2 and the take-up roller 5 rotate simultaneously at the same frequency. After the uncut tape is conveyed to the lower end of the lifting cutter, the feeding roller 2 and the take-up roller 5 stop rotating under the drive of the intermittent drive. The lifting cutter then presses down and cuts the edge of the tape body during the pressing process, forming a concave portion on the tape. After the cutting is completed, the lifting cutter can automatically reset. When the feeding roller 2 and the take-up roller 5 rotate, the position of the lifting cutter changes with the movement of the tape, allowing the lifting cutter to continuously cut the two sides of the tape at intervals, so that the tape body has a first serration and a second serration at both ends, thereby increasing the friction coefficient of the tape body edge and facilitating manual tearing or positioning during use.

[0029] It should be noted that a convex portion is formed between two adjacent grooves, and the grooves on the first sawtooth and the convex portions on the second sawtooth are aligned with each other, while the convex portions on the first sawtooth and the concave portions on the second sawtooth are aligned with each other. This ensures that any edge of the tape is serrated during use. The alternating structure of grooves and convex portions evenly distributes shear force, preventing localized tearing caused by stress concentration. Preferably, pressure rollers 4 are symmetrically arranged on the worktable 1, and the pressure rollers 4 are rotatably connected to the worktable 1.

[0030] As a further solution in this embodiment, please refer to Figure 3 The reciprocating moving component includes a cam 19 rotatably mounted on the mounting bracket 7, and a protrusion 1901 is provided at the eccentric position of the cam 19; It also includes a movable plate 20, the two ends of which are slidably connected to guide rods 25 mounted on the mounting frame 7. A second sliding groove 2002 is formed on one side of the movable plate 20 to slide and adapt to the protrusion 1901, and a first sliding groove 2001 is formed on the other side. A slider 21 is slidably disposed in the first sliding groove 2001.

[0031] Driven by the intermittent drive component, when the unloading roller 2 and the take-up roller 5 rotate, the cam 19 rotates synchronously, and the protrusion 1901 on it exerts an inclined force on the second slide groove 2002. Under the restriction of the guide rod 25, the moving plate 20 can reciprocate in a direction parallel to the axis of the guide rod 25, and the cam 19 rotates 180 degrees each time, so that the moving plate 20 moves from the end of the stroke to the other end, thereby changing the cutting position of the lifting cutter on the tape.

[0032] As a further solution in this embodiment, please refer to Figure 7The lifting and cutting component includes a grooved roller 22 rotatably mounted on the moving plate 20. A limiting groove 2201 is formed on the grooved roller 22. A lifting cylinder 24 fixed to the slider 21 is slidably sleeved along the axial direction of the grooved roller 22. A ball bearing that slides and engages with the limiting groove 2201 is movably disposed on the cylinder wall of the lifting cylinder 24.

[0033] It should be noted that a U-shaped cutting blade 2401 is fixedly installed at the bottom of the lifting cylinder 24.

[0034] In this embodiment, when the feeding roller 2 and the take-up roller 5 stop rotating due to the intermittent drive, the groove roller 22 rotates, and the limiting groove 2201 on it squeezes the ball. With the cooperation of the slider 21 and the first sliding groove 2001, the lifting cylinder 24 can move back and forth along the axial direction of the groove roller 22. When the cutting blade 2401 moves down, it can cut the edge of the tape, so that the edge of the tape has a groove. After the cutting is completed, the lifting cylinder 24 can automatically reset, and the cutting blade 2401 separates from the tape to avoid affecting the subsequent tape conveying, thereby performing continuous automatic die-cutting work on the tape.

[0035] As a further solution in this embodiment, please refer to Figure 5 The intermittent drive component includes a drive shaft 9 rotatably mounted on the worktable 1. The drive shaft 9 is driven to rotate by a motor 8 mounted on the worktable 1. An intermittent transmission wheel 10 is sleeved on the drive shaft 9. A first driven shaft 11 and a second driven shaft 12, which are rotatably connected to the worktable 1, are respectively connected to the intermittent transmission wheel 10. The first driven shaft 11 is connected to a telescopic transmission component mounted on the mounting frame 7 via a third toothed belt 13. The second driven shaft 12 is connected to a transmission shaft 17 rotatably mounted on the mounting frame 7 via a fourth toothed belt 14. The transmission shaft 17 is connected to the cam 19 shaft via a first bevel gear set 18.

[0036] In this embodiment, by starting the motor 8, the output shaft of the motor 8 is fixed to the drive shaft 9, so that when the output shaft rotates, it drives the drive shaft 9 to rotate synchronously. The intermittent transmission wheel 10 adopts the principle of Malta cross mechanism. When the drive shaft 9 rotates, it can intermittently drive the first driven shaft 11 or the second driven shaft 12 to rotate, thereby realizing that the conveying and die-cutting of the tape can be carried out intermittently. Through the intermittent coordination of tape conveying and tape die-cutting, the die-cutting of the tape can be carried out continuously, ensuring the die-cutting efficiency of the adhesive tape.

[0037] When the second driven shaft 12 rotates, it drives the transmission shaft 17 to rotate synchronously under the transmission of the fourth toothed belt 14. When the transmission shaft 17 rotates, under the transmission of the second toothed belt 6 and the first bevel gear set 18, the cam 19 and the take-up roller 5 can rotate synchronously, so that the conveying of the tape and the adjustment of the position of the lifting and cutting parts can be carried out synchronously. When the cutting position of the tape is changed, the continuous operation of the tape die-cutting work is not affected.

[0038] As a further solution in this embodiment, please refer to Figure 6 and Figure 7 The telescopic transmission component includes a telescopic cylinder 15 rotatably mounted on the mounting frame 7, and the telescopic cylinder 15 is connected to the first driven shaft 11 through the third toothed belt 13; It also includes a telescopic shaft 16, which is arranged along the axis of the telescopic cylinder 15 and slidably inserted into the telescopic cylinder 15. A connecting plate 23 with an L-shaped structure is rotatably mounted on the grooved roller 22. The other end of the connecting plate 23 is rotatably connected to the telescopic shaft 16. The telescopic shaft 16 is connected to the grooved roller 22 through a second bevel gear set 26.

[0039] Preferably, at least one set of strip grooves is provided on the inner wall of the telescopic cylinder 15, and a strip block is provided on the telescopic shaft 16 that slides with the strip grooves. With the cooperation of the strip grooves and the strip block, when the moving plate 20 moves back and forth, its lifting and cutting parts can move synchronously. At this time, the telescopic shaft 16 moves relative to the telescopic cylinder 15, and can drive the telescopic shaft 16 to rotate synchronously without affecting the rotation of the telescopic cylinder 15.

[0040] In this embodiment, when the first driven shaft 11 rotates, the telescopic cylinder 15 rotates synchronously under the transmission of the third toothed belt 13. Under the restriction of the strip groove and the strip block, the telescopic shaft 16 rotates synchronously with the rotation of the telescopic cylinder 15. When the telescopic shaft 16 rotates, the requirement for the rotation of the grooved roller 22 is met under the transmission of the second bevel gear set 26. When the position of the grooved roller 22 changes, the transmission between the grooved roller 22 and the telescopic shaft 16 is not affected.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adhesive tape, comprising a tape body, characterized in that, The tape body has a first serration and a second serration formed on both sides, and both the first serration and the second serration include a plurality of concave portions and convex portions, and the concave portions and the convex portions are spaced apart. Along the width direction of the tape body, the concave and convex portions on the first saw tooth are aligned with the convex and concave portions on the second saw tooth.

2. An automatic continuous die-cutting device for cutting the adhesive tape as described in claim 1, characterized in that, The die-cutting device includes a worktable (1), on which a tape feeding roller (2) and a tape taking roller (5) are arranged sequentially along the conveying direction of the tape body. It also includes a mounting frame (7) installed on the workbench (1), the mounting frame (7) is provided with a lifting cutting component, and the mounting frame (7) is equipped with a reciprocating moving component that can control the movement of the lifting cutting component, for die-cutting both sides of the tape body; An intermittent drive component is disposed on the worktable (1) and is connected to the lifting and cutting component and the reciprocating moving component respectively.

3. The automatic continuous die-cutting device according to claim 2, characterized in that, The worktable (1) is symmetrically provided with pressure rollers (4), and the pressure rollers (4) are rotatably connected to the worktable (1).

4. An automatic continuous die-cutting device according to claim 2, characterized in that, The reciprocating moving part includes a cam (19) rotatably mounted on the mounting bracket (7), and a protrusion (1901) is provided at the eccentric position of the cam (19). It also includes a movable plate (20), the two ends of which are slidably connected to guide rods (25) mounted on the mounting frame (7), and a second groove (2002) is formed on one side of the movable plate (20) to slide and adapt to the protrusion (1901), and a first groove (2001) is formed on the other side, and a slider (21) is slidably disposed in the first groove (2001).

5. An automatic continuous die-cutting device according to claim 4, characterized in that, The lifting and cutting component includes a grooved roller (22) rotatably mounted on the movable plate (20), a limiting groove (2201) is formed on the grooved roller (22), and a lifting cylinder (24) fixed to the slider (21) is slidably sleeved along the axial direction of the grooved roller (22), and a ball bearing that slides and engages with the limiting groove (2201) is movably arranged on the cylinder wall of the lifting cylinder (24).

6. An automatic continuous die-cutting device according to claim 5, characterized in that, The intermittent drive includes a drive shaft (9) rotatably mounted on the worktable (1). The drive shaft (9) is driven to rotate by a motor (8) mounted on the worktable (1). An intermittent transmission wheel (10) is sleeved on the drive shaft (9). A first driven shaft (11) and a second driven shaft (12) rotatably connected to the worktable (1) are respectively connected to the intermittent transmission wheel (10). The first driven shaft (11) is connected to a telescopic transmission member set on the mounting frame (7) through a third toothed belt (13). The second driven shaft (12) is connected to a transmission shaft (17) rotatably mounted on the mounting frame (7) through a fourth toothed belt (14). The transmission shaft (17) is connected to the cam (19) shaft through a first bevel gear set (18).

7. An automatic continuous die-cutting device according to claim 6, characterized in that, The telescopic transmission component includes a telescopic cylinder (15) rotatably mounted on the mounting bracket (7), and the telescopic cylinder (15) is connected to the first driven shaft (11) via the third toothed belt (13); It also includes a telescopic shaft (16), which is arranged along the axis of the telescopic cylinder (15) and slidably inserted into the telescopic cylinder (15). A connecting plate (23) with an L-shaped structure is rotatably installed on the grooved roller (22). The other end of the connecting plate (23) is rotatably connected to the telescopic shaft (16). The telescopic shaft (16) is connected to the grooved roller (22) through a second bevel gear set (26).

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