Die cutting and waste removing device for double-sided adhesive tape production

Abstract

This utility model belongs to the field of double-sided tape production, and in particular, it is a die-cutting waste removal device for double-sided tape production. Addressing the problems of existing roll structures being fixed and unable to shrink, making it difficult to quickly separate the roll from the waste material and inconvenient to remove, the following solution is proposed: A mounting plate is provided, with a guide roller and an air shaft rotatably connected to one side of the mounting plate; a roll is sleeved on the outside of the air shaft, and the roll includes a first arc-shaped plate and a second arc-shaped plate, both coaxial with the air shaft; multiple connecting parts are arranged in two rows opposite the first and second arc-shaped plates, and the connecting parts include connecting sleeves and connecting rods. In this utility model, the roll can be detached from the air shaft and then retracted, reducing the resistance between the roll and the waste material, facilitating the removal of the wound waste material, and ensuring the continuous overall structure of the roll's outer edge, preventing the waste material from being cut during removal.

Description

Technical Field

[0001] This utility model relates to the field of double-sided tape production technology, and in particular to a die-cutting waste removal device for double-sided tape production. Background Technology

[0002] Double-sided tape is a roll of adhesive tape made by coating elastomers or resin-based pressure-sensitive adhesives onto a substrate such as paper, cloth, or plastic film. It consists of a substrate, adhesive, and a release layer. During processing, double-sided tape can be cut into specific shapes using die-cutting equipment according to production requirements.

[0003] In the existing technology, waste is generated when double-sided tape is die-cut. Since most of the waste is continuous, the traditional collection method is to use a roll to rewind the waste and then remove the waste from the roll for subsequent recycling. However, the structure of the roll is fixed and cannot be retracted, and the roll and waste cannot be separated quickly, making it inconvenient to remove the waste.

[0004] Therefore, we propose a die-cutting waste removal device for double-sided tape production. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as fixed and unchanging roll structure, inability to shrink, inability to quickly separate the roll from the waste material, and inconvenience in removing the waste material. Therefore, this invention proposes a die-cutting waste removal device for double-sided tape production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A die-cutting waste removal device for double-sided tape production includes:

[0008] Mounting plate, one side of which is rotatably connected to a guide roller and an air shaft;

[0009] A reel, sleeved on the outside of the air expansion shaft, the reel including a first arc plate and a second arc plate, both of which are coaxial with the air expansion shaft;

[0010] Multiple connectors are arranged in two rows on opposite sides of the first and second arc-shaped plates. Each connector includes a connecting sleeve and a connecting rod. The connecting sleeve is fixed to one side of the first arc-shaped plate, and the connecting rod is fixed to one side of the second arc-shaped plate. The connecting sleeve and the connecting rod are slidably fitted together, and a limiting mechanism is provided between the connecting sleeve and the connecting rod.

[0011] In one possible design, the limiting mechanism includes a limiting groove formed on the outer wall of the connecting sleeve and a limiting block fixed on the outer wall of the connecting rod, with the limiting block and the limiting groove slidingly engaged.

[0012] In one possible design, two connecting fabrics made of nylon are fixed between the first and second arc-shaped plates.

[0013] In one possible design, the outer wall of the guide roller is fitted with two positioning rings, and the outer wall of the positioning rings is threaded with a set screw, which abuts against the guide roller.

[0014] In one possible design, a motor and a protective cover are fixed on one side of the mounting plate. The output shaft of the motor and the air expansion shaft are coaxially fixed. The motor is located inside the protective cover, and the outer wall of the protective cover has heat dissipation vents.

[0015] In one possible design, the mounting plate has multiple mounting holes extending through one side.

[0016] In this application, during winding, the roll is placed on the air shaft, and the air shaft is activated to expand. Under the constraint of the limiting block and the limiting groove, the first arc plate and the second arc plate are tensioned, and the connecting fabric is in a nearly flat state. Then, the motor is started to drive the air shaft and the roll to rotate. Under the guidance of the guide roller, the waste material is wound up. After winding is completed, the air shaft is closed, and the roll and the wound waste material are removed from the air shaft. At this time, the first arc plate and the second arc plate are pushed closer together, causing the roll to contract and reducing the resistance between the waste material and the roll. Then the waste material can be removed, and the roll can be reused.

[0017] Beneficial effects: In this utility model, the die-cutting waste removal device for double-sided tape production, through the setting of the first arc plate, the second arc plate and the connecting rod, can retract the roll after it is removed from the air shaft, so that the resistance between the roll and the waste material makes it easier for people to unwind the rolled waste material.

[0018] In this utility model, the die-cutting waste removal device for double-sided tape production, through the setting of connecting cloth and other structures, makes the outer edge structure of the roll continuous as a whole, avoiding cutting the waste material when removing it;

[0019] In this invention, the drum can be removed from the air shaft and then retracted, reducing the resistance between the drum and the waste material, making it easier for people to unwind the wound waste material, and ensuring that the outer edge structure of the drum is continuous, thus avoiding cutting the waste material when unwinding it. Attached Figure Description

[0020] Figure 1 This is a first-view overall three-dimensional structural diagram of a die-cutting waste removal device for double-sided tape production proposed in this utility model.

[0021] Figure 2 This is a second-view overall three-dimensional structural diagram of a die-cutting waste removal device for double-sided tape production proposed in this utility model.

[0022] Figure 3 This is a partial three-dimensional structural schematic diagram of a die-cutting waste removal device for double-sided tape production proposed in this utility model.

[0023] In the diagram: 1. Mounting plate; 2. Mounting hole; 3. Guide roller; 4. Air shaft; 5. Positioning ring; 6. Top screw; 7. Motor; 8. Protective cover; 9. First arc plate; 10. Second arc plate; 11. Connecting cloth; 12. Connecting sleeve; 13. Connecting rod; 14. Limiting groove; 15. Limiting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In one embodiment: Refer to Figures 1-3 A die-cutting waste removal device includes: a mounting plate 1 installed at the tail end of a die-cutting machine. One side of the mounting plate 1 is rotatably connected to a guide roller 3 and an air-expanding shaft 4 via a bearing. A retractable drum structure is sleeved on the outer side of the air-expanding shaft 4. The drum is composed of a first arc-shaped plate 9 and a second arc-shaped plate 10 coaxially spliced ​​together, symmetrically distributed around the outer periphery of the air-expanding shaft 4. Two rows of connecting members are respectively arranged on the opposite edges of the first arc-shaped plate 9 and the second arc-shaped plate 10, each row containing multiple connecting units.

[0026] The connecting unit consists of a connecting sleeve 12 and a connecting rod 13. The connecting sleeve 12 is fixedly connected to one side of the first arc-shaped plate 9, and the connecting rod 13 is fixedly connected to one side of the second arc-shaped plate 10. The end of the connecting rod 13 is slidably inserted into the inner cavity of the corresponding connecting sleeve 12, realizing the relative telescopic movement of the first arc-shaped plate 9 and the second arc-shaped plate 10. An axially extending limiting groove 14 is formed on the outer wall of the connecting sleeve 12, and a limiting block 15 matching the limiting groove 14 is fixed on the outer wall of the connecting rod 13. When the limiting block 15 slides in the limiting groove 14, it constrains the movement trajectory of the connecting rod 13 and prevents the two arc-shaped plates from radially separating.

[0027] Two flexible connecting fabrics 11 are fixedly connected between the adjacent sides of the first arc-shaped plate 9 and the second arc-shaped plate 10. The connecting fabrics 11 are made of nylon, and their two ends are sewn and fixed to the edges of the two arc-shaped plates respectively. When the roll expands, the connecting fabrics 11 unfold into an approximately flat plane under tension; when the roll contracts, the connecting fabrics 11 gather with the arc-shaped plates to form folds.

[0028] This application can be used in the field of double-sided tape production, or in other fields applicable to this application.

[0029] In another embodiment: a die-cutting waste removal device for double-sided tape production, which is applied to the field of double-sided tape production;

[0030] In another aspect of this embodiment, two adjustable positioning rings 5 ​​are fitted onto the outer wall of the guide roller 3. The positioning rings 5 ​​have radial threaded holes. After the set screw 6 is screwed into the threaded holes, its end abuts against the surface of the guide roller 3, thereby locking the positioning rings 5 ​​in the axial direction of the guide roller 3. This position can be adjusted according to the size of the waste material. A motor 7 and a protective cover 8 covering the motor 7 are fixedly mounted on one side of the mounting plate 1. The output shaft of the motor 7 is coaxially connected to the air shaft 4 via a coupling. Multiple sets of strip-shaped heat dissipation vents are opened on the side wall of the protective cover 8 for heat dissipation during motor 7 operation. Multiple mounting holes 2 are opened through the four corners of the mounting plate 1 for bolt fixing of the entire device to external equipment.

[0031] Roll Installation: Insert the retracted roll into the air shaft 4 and activate the air shaft 4's tensioning function. The air shaft 4 expands radially, pushing the first arc plate 9 and the second arc plate 10 to move in opposite directions. The connecting rod 13 slides outward along the connecting sleeve 12 until the limiting block 15 abuts against the end of the limiting groove 14. At this time, the connecting cloth 11 is tensioned, and a continuous bearing surface is formed on the outer surface of the roll.

[0032] Waste material winding: The starter motor 7 drives the air shaft 4 to rotate, and the double-sided tape waste generated by die cutting is guided by the guide roller 3 and wound onto the surface of the roll. The positioning ring 5 adjusts the spacing through the set screw 6 to limit the lateral displacement of the waste material.

[0033] Unloading operation: After winding is complete, close the air shaft 4 to retract it. Remove the entire roll from the air shaft 4, manually push the first arc plate 9 and the second arc plate 10 to move towards each other, the connecting rod 13 retracts into the connecting sleeve 12, and the roll diameter decreases. The nylon connecting fabric 11 forms flexible pleats during the shrinkage process, preventing its outer edge from cutting the waste layer. A gap is formed between the shrunken roll and the waste roll, allowing the waste roll to be easily detached from the outer wall of the roll.

[0034] However, as is well known to those skilled in the art, the working principles and wiring methods of the air shaft 4 and the motor 7 are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0035] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A die-cutting waste removal device for double-sided adhesive production, characterized in that, include: Mounting plate (1), one side of which is rotatably connected to guide roller (3) and air shaft (4). A reel is sleeved on the outside of the air expansion shaft (4). The reel includes a first arc plate (9) and a second arc plate (10). Both the first arc plate (9) and the second arc plate (10) are coaxial with the air expansion shaft (4). Multiple connectors are arranged in two rows on opposite sides of the first arc plate (9) and the second arc plate (10). The connectors include a connecting sleeve (12) and a connecting rod (13). The connecting sleeve (12) is fixed on one side of the first arc plate (9), and the connecting rod (13) is fixed on one side of the second arc plate (10). The connecting sleeve (12) and the connecting rod (13) are slidably engaged. A limiting mechanism is provided between the connecting sleeve (12) and the connecting rod (13).

2. The die-cutting waste removal device for double-sided adhesive production according to claim 1, characterized in that, The limiting mechanism includes a limiting groove (14) formed on the outer wall of the connecting sleeve (12) and a limiting block (15) fixed on the outer wall of the connecting rod (13), with the limiting block (15) and the limiting groove (14) slidingly engaged.

3. The die-cutting waste removal device for double-sided adhesive production according to claim 2, characterized in that, Two connecting cloths (11) are fixed between the first arc plate (9) and the second arc plate (10), and the connecting cloths (11) are made of nylon.

4. The die-cutting waste removal device for double-sided adhesive production according to claim 3, characterized in that, The outer wall of the guide roller (3) is fitted with two positioning rings (5), and the outer wall of the positioning rings (5) is threaded with a set screw (6), which abuts against the guide roller (3).

5. A die-cutting waste removal device for double-sided adhesive production according to claim 4, characterized in that, A motor (7) and a protective cover (8) are fixed on one side of the mounting plate (1). The output shaft of the motor (7) and the air expansion shaft (4) are fixed coaxially. The motor (7) is located inside the protective cover (8). A heat dissipation port is provided on the outer wall of the protective cover (8).

6. A die-cutting waste removal device for double-sided adhesive production according to claim 5, characterized in that, The mounting plate (1) has multiple mounting holes (2) through one side.

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