Blade mechanism for adhesive tape shearing device

Abstract

The utility model discloses a blade mechanism for an adhesive tape shearing device, which comprises a shearing roller, a clamping component and a plurality of blade wheels, the clamping component is mounted inside the shearing roller, and the plurality of blade wheels are arranged on the outer surface of the shearing roller at equal intervals. The clamping sliding ring pushes the clamping rod to move, one end of the clamping rod is rotationally installed on the clamping sliding ring, the sliding column of the clamping rod slides in the sliding groove, the clamping rod inclines correspondingly, and the end, away from the clamping sliding ring, of the clamping rod extends out of the clamping groove. The clamping rods of the first set of clamping assemblies and the clamping rods of the second set of clamping assemblies move oppositely to clamp the blade wheel and move oppositely to loosen clamping of the blade wheel, and when the clamping rods move oppositely, the clamping rods retract into the clamping grooves, so that the blade wheel can be better replaced conveniently, abrasion of the blade wheel is avoided in a progressive process, and the clamping efficiency of the blade wheel is improved. And the wear degree is difficult to accurately evaluate by conventional visual inspection.

Description

Technical Field

[0001] The utility model relates to the technical field of adhesive tapes, in particular to a blade mechanism for an adhesive tape shearing device. Background Art

[0002] In the packaging and logistics sectors, tape slitting machines are a crucial component of automated production lines, their efficiency directly impacting the speed and quality of the entire process. The blade mechanism, specifically the blade roller, is a core component of the tape slitting machine, responsible for precisely cutting tape rolls of varying widths. However, despite significant progress in improving cutting accuracy and speed, existing technologies still have significant shortcomings in blade replacement convenience, which has become a key factor hindering production efficiency improvements.

[0003] In traditional tape slitting machines, the blade roller is typically integrated, with the blade tightly fixed to the roller, forming a closed cutting unit. While this design helps ensure stability and consistency during the cutting process, replacing the blade when it wears or becomes damaged becomes extremely complex and time-consuming. Operators often need to completely disassemble the cutting section of the slitting machine to access the blade for replacement. This process not only requires a high level of operator skill, but also, for large production lines, each blade replacement results in lengthy downtime, severely impacting production efficiency.

[0004] More importantly, blade wear is a gradual process, making it difficult to detect in time. Because the blades are hidden deep within the roller, conventional visual inspections make it difficult to accurately assess the extent of wear. This leads to passive maintenance. Often, blade replacement is not recognized until cutting performance has significantly deteriorated, or even when incomplete cutting occurs. This delayed maintenance strategy not only increases material loss but can also lead to product quality issues and damage a company's reputation.

[0005] The blade replacement mechanism of existing tape slitter machines lacks standardization and modularity, meaning each model of slitter may require a dedicated blade and replacement tool. This not only increases spare parts inventory costs but also complicates operator training and maintenance. For companies with multiple slitter models, this lack of universality undoubtedly increases the management burden.

[0006] Considering the high requirements for efficiency and continuity on the production line, frequent blade replacement will have an impact on production plans even if maintenance is carried out during non-working hours, especially when responding to urgent orders or peak production. This impact is particularly evident.

[0007] Therefore, how to provide a blade mechanism for a tape cutting device is a problem that those skilled in the art urgently need to solve. Utility Model Content

[0008] One purpose of the present invention is to propose a blade mechanism for a tape cutting device. The present invention promotes the displacement of a clamping rod through a clamping slip ring. One end of the clamping rod is rotatably installed on the clamping slip ring. The sliding column of the clamping rod slides along the sliding groove, and the clamping rod is tilted accordingly. The clamping rod extends out of the clamping groove away from one end of the clamping slip ring. The clamping rod of the clamping assembly of the first group and the clamping rod of the clamping assembly of the second group move relative to each other to clamp the blade wheel, and move in opposite directions to release the clamping of the blade wheel. When the clamping rod moves in opposite directions, the clamping rod retracts into the clamping groove, which is convenient for better replacement of the blade wheel and avoids wear of the blade wheel. It is a gradual process and is not easy to be discovered in time. Conventional visual inspection is difficult to accurately assess the degree of wear.

[0009] According to an embodiment of the present invention, a blade mechanism for a tape cutting device includes a shearing roller, a clamping assembly and a blade wheel, wherein the clamping assembly is installed inside the shearing roller, and a plurality of blade wheels are provided, and the plurality of blade wheels are equidistantly arranged on the outer surface of the shearing roller.

[0010] Furthermore, the shear roller is composed of a roller shaft body and a roller cover cylinder, and both ends of the roller shaft body pass through the roller cover cylinder.

[0011] Furthermore, an expansion plate is fixedly provided on the inner wall of the roller cover cylinder, and there are eight expansion plates, which are distributed at equal angles. A clamping groove is provided on the inner wall of the expansion plate, and there are eight clamping grooves, which are respectively provided on the expansion plate, and sliding grooves are provided on both sides of the groove wall of the clamping groove.

[0012] Furthermore, the clamping components are provided in two groups, and the two groups of clamping components are slidably mounted on the outer surface of the roller body in opposite directions or in opposite directions.

[0013] Furthermore, the clamping assembly includes a clamping slip ring, a displacement plate and a swivel plate, wherein the inner wall of the clamping slip ring is slidably mounted on the outer surface of the roller body, four displacement plates are provided, and the four displacement plates are fixedly mounted at equal angles on the outer surface of the same clamping slip ring, and eight swivel plates are provided, and the eight swivel plates are fixedly mounted at equal angles on the outer surface of the same clamping slip ring.

[0014] Furthermore, the clamping assembly also includes a clamping rod and a slide column, one end of the clamping rod is rotatably mounted on the swivel plate, the other end of the clamping rod is inserted into the clamping groove, and the slide column is slidably mounted in the slide groove.

[0015] Furthermore, the clamping assembly also includes a clamping plate, a threaded seat and a pushing rod, wherein the clamping plate is slidably sleeved on both ends of the roller shaft body, and the clamping plate is located on both sides of the roller cover cylinder, the threaded seat is fixedly installed on the four sides of the clamping plate, one end of the pushing rod is fixedly installed on the side of the clamping plate facing the roller cover cylinder, and the other end of the pushing rod is fixedly installed on the displacement plate.

[0016] Furthermore, limiting grooves are provided on both sides of the blade wheel.

[0017] The beneficial effects of the utility model are:

[0018] The utility model promotes the displacement of the clamping rod through the clamping slip ring, one end of the clamping rod is rotatably installed on the clamping slip ring, the sliding column of the clamping rod slides along the sliding groove, the clamping rod is tilted accordingly, and the clamping rod extends out of the clamping groove away from the end of the clamping slip ring. The clamping rod of the clamping assembly of the first group and the clamping rod of the clamping assembly of the second group move relative to each other to clamp the blade wheel, and move away from each other to release the clamping of the blade wheel. When the clamping rod moves away from each other, the clamping rod retracts into the clamping groove, which is convenient for better replacement of the blade wheel and avoids wear of the blade wheel. It is a gradual process and not easy to be discovered in time. Conventional visual inspection is difficult to accurately assess the degree of wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a blade mechanism for a tape cutting device proposed in the present invention;

[0021] Figure 2 This is a schematic structural diagram of a clamping rod of a blade mechanism for a tape cutting device proposed in the present invention;

[0022] Figure 3 The utility model provides a blade mechanism for a tape cutting device. Figure 2 A magnified view of point A;

[0023] Figure 4 The utility model is a schematic structural diagram of a blade wheel of a blade mechanism for a tape cutting device.

[0024] In the figure: 1. Shearing roller; 1.1. Roller shaft; 1.2. Roller cover cylinder; 1.3. Expansion plate; 1.4. Clamping groove; 1.5. Slide groove; 2. Clamping assembly; 2.1. Clamping slip ring; 2.2. Displacement plate; 2.3. Rotating seat plate; 2.4. Clamping rod; 2.5. Slide column; 2.6. Clamping plate; 2.7. Threaded seat; 2.8. Push rod; 3. Blade wheel; 3.1. Limiting groove. DETAILED DESCRIPTION

[0025] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0026] In traditional tape slitting machines, the blade roller usually adopts an integrated design, and the blade is tightly fixed to the roller to form a closed cutting unit. Although this design helps to ensure stability and consistency during the cutting process, when the blade is worn or damaged, the replacement process becomes extremely complicated and time-consuming. Operators often need to completely disassemble the cutting part of the slitting machine to access the blade for replacement. This process not only requires the operator to have a high level of technical skills, but also, for large production lines, each blade replacement will result in long downtime, seriously affecting production efficiency.

[0027] More importantly, blade wear is a gradual process and is not easy to detect in time. Since the blade is hidden deep inside the roller, conventional visual inspection is difficult to accurately assess the degree of wear, which leads to the passive nature of equipment maintenance.

[0028] In order to solve the above problems, the following technical solutions are proposed:

[0029] Please refer to Figures 1 to 4 The utility model provides a blade mechanism for a tape cutting device, comprising a shearing roller 1, a clamping assembly 2 and a blade wheel 3, wherein the clamping assembly 2 is installed inside the shearing roller 1, and the shearing roller 1 is used to be installed on a tape slitting machine. When the shearing roller 1 of the tape slitting machine rotates, the shearing roller 1 drives the blade wheel 3 to rotate, and the blade wheel 3 divides the entire tape roll. A plurality of blade wheels 3 are provided, and the plurality of blade wheels 3 are equidistantly arranged on the outer surface of the shearing roller 1, and limiting grooves 3.1 are provided on both sides of the blade wheel 3.

[0030] Specifically, the shearing roller 1 consists of a roller shaft body 1.1 and a roller cover cylinder 1.2. Both ends of the roller shaft body 1.1 pass through the roller cover cylinder 1.2. An expansion plate 1.3 is fixedly provided on the inner wall of the roller cover cylinder 1.2. There are eight expansion plates 1.3, and the eight expansion plates 1.3 are distributed at equal angles. The inner wall of the expansion plate 1.3 is provided with a clamping groove 1.4. There are eight clamping grooves 1.4, and the eight clamping grooves 1.4 are respectively provided on the expansion plate 1.3. Slide grooves 1.5 are provided on both sides of the groove wall of the clamping groove 1.4.

[0031] More specifically, two sets of clamping assemblies 2 are provided, and the two sets of clamping assemblies 2 are slidably mounted on the outer surface of the roller body 1.1 in opposite or opposite directions. The clamping assemblies 2 include a clamping slip ring 2.1, a displacement plate 2.2, and a swivel plate 2.3. The inner wall of the clamping slip ring 2.1 is slidably mounted on the outer surface of the roller body 1.1. Four displacement plates 2.2 are provided, and the four displacement plates 2.2 are fixedly mounted at equal angles on the outer surface of the same clamping slip ring 2.1. Eight swivel plates 2.3 are provided, and the eight swivel plates 2.3 are fixedly mounted at equal angles on the outer surface of the same clamping slip ring 2.1.

[0032] More specifically, the clamping assembly 2 also includes a clamping rod 2.4 and a sliding column 2.5. One end of the clamping rod 2.4 is rotatably mounted on the swivel plate 2.3, and the other end of the clamping rod 2.4 is inserted into the clamping groove 1.4. The top of the clamping rod 2.4 is against the limiting groove 3.1 of the blade wheel 3 to effectively fix the blade wheel 3. The sliding column 2.5 is slidably mounted in the sliding groove 1.5. The clamping assembly 2 also includes a clamping plate 2.6, a threaded seat 2.7 and a pushing rod 2.8, wherein the clamping plate 2.6 is slidably sleeved on both ends of the roller shaft body 1.1, and the clamping plate 2.6 is located on both sides of the roller cover cylinder 1.2, the threaded seat 2.7 is fixedly mounted on the four sides of the clamping plate 2.6, one end of the pushing rod 2.8 is fixedly mounted on the side of the clamping plate 2.6 facing the roller cover cylinder 1.2, and the other end of the pushing rod 2.8 is fixedly mounted on the displacement plate 2.2.

[0033] Furthermore, the roller shaft body 1.1 is installed on the tape slitting machine. When the roller shaft body 1.1 of the tape slitting machine rotates, the roller shaft body 1.1 drives the roller cover cylinder 1.2 and the blade wheel 3 to rotate, and the blade wheel 3 cuts the entire tape roll.

[0034] When the clamping assembly 2 clamps the blade wheel 3, the first group of clamping assembly 2 pushes the clamping plate 2.6 toward the roller cover cylinder 1.2, and the threaded seat 2.7 is fixedly installed on the end of the roller cover cylinder 1.2 by screwing the bolt into the threaded seat 2.7. The clamping plate 2.6 pushes the displacement of the push rod 2.8, and the push rod 2.8 pushes the displacement of the clamping slip ring 2.1. The clamping slip ring 2.1 pushes the displacement of the clamping rod 2.4. One end of the clamping rod 2.4 is rotatably installed on the clamping slip ring 2.1, and the sliding column 2.5 of the clamping rod 2.4 slides along the slide groove 1.5. The clamping rod 2.4 tilts accordingly, and the end of the clamping rod 2.4 away from the clamping slip ring 2.1 extends out of the clamping groove 1.4, and the end of the clamping rod 2.4 away from the clamping slip ring 2.1 is stuck in the limit groove 3.1 on one side of the blade wheel 3.

[0035] The clamping assembly 2 of the second group has the same working principle as the clamping assembly 2 of the first group. The end of the clamping rod 2.4 away from the clamping slip ring 2.1 is stuck in the limiting groove 3.1 on the other side of the blade wheel 3. The clamping rod 2.4 of the clamping assembly 2 of the first group and the clamping rod 2.4 of the clamping assembly 2 of the second group move relative to each other to clamp the blade wheel 3, and move away from each other to release the clamping of the blade wheel 3. When the clamping rod 2.4 moves away from each other, the clamping rod 2.4 retracts into the clamping groove 1.4, which facilitates better replacement of the blade wheel 3.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A blade mechanism for a tape cutting device, characterized in that: The invention comprises a shearing roller (1), a clamping assembly (2) and a blade wheel (3), wherein the clamping assembly (2) is installed inside the shearing roller (1), a plurality of blade wheels (3) are provided, and the plurality of blade wheels (3) are arranged at equal intervals on the outer surface of the shearing roller (1).

2. The blade mechanism for a tape cutting device according to claim 1, characterized in that: The shearing roller (1) consists of a roller shaft body (1.1) and a roller cover cylinder (1.2), and both ends of the roller shaft body (1.1) pass through the roller cover cylinder (1.2).

3. The blade mechanism for a tape cutting device according to claim 2, characterized in that: An expansion plate (1.3) is fixedly provided on the inner wall of the roller cover cylinder (1.2), and eight expansion plates (1.3) are provided. The eight expansion plates (1.3) are distributed at equal angles. A clamping groove (1.4) is provided on the inner wall of the expansion plate (1.3), and eight clamping grooves (1.4) are provided. The eight clamping grooves (1.4) are respectively provided on the expansion plate (1.3), and sliding grooves (1.5) are provided on both sides of the groove wall of the clamping groove (1.4).

4. The blade mechanism for a tape cutting device according to claim 1, characterized in that: The clamping components (2) are provided in two groups, and the two groups of clamping components (2) are slidably mounted on the outer surface of the roller body (1.1) in opposite directions or in opposite directions.

5. The blade mechanism for a tape cutting device according to claim 4, characterized in that: The clamping assembly (2) comprises a clamping slip ring (2.1), a displacement plate (2.2) and a swivel plate (2.3), wherein the inner wall of the clamping slip ring (2.1) is slidably mounted on the outer surface of the roller body (1.1), four displacement plates (2.2) are provided, and the four displacement plates (2.2) are fixedly mounted at equal angles on the outer surface of the same clamping slip ring (2.1), and eight swivel plates (2.3) are provided, and the eight swivel plates (2.3) are fixedly mounted at equal angles on the outer surface of the same clamping slip ring (2.1).

6. The blade mechanism for a tape cutting device according to claim 5, characterized in that: The clamping assembly (2) further comprises a clamping rod (2.4) and a sliding column (2.5); one end of the clamping rod (2.4) is rotatably mounted on the swivel plate (2.3); the other end of the clamping rod (2.4) is inserted into the clamping groove (1.4); and the sliding column (2.5) is slidably mounted in the sliding groove (1.5).

7. The blade mechanism for a tape cutting device according to claim 6, characterized in that: The clamping assembly (2) further comprises a clamping plate (2.6), a threaded seat (2.7) and a push rod (2.8), wherein the clamping plate (2.6) is slidably sleeved on both ends of the roller shaft body (1.1), and the clamping plate (2.6) is located on both sides of the roller cover cylinder (1.2); the threaded seat (2.7) is fixedly mounted on four sides of the clamping plate (2.6); one end of the push rod (2.8) is fixedly mounted on a side of the clamping plate (2.6) facing the roller cover cylinder (1.2); and the other end of the push rod (2.8) is fixedly mounted on the displacement plate (2.2).

8. The blade mechanism for a tape cutting device according to claim 1, characterized in that: Limiting grooves (3.1) are provided on both sides of the blade wheel (3).

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