Production device of pressure-sensitive adhesive tape

Abstract

The utility model discloses a production device of a pressure-sensitive adhesive tape, which comprises an unfolding roller driven by a first motor and a winding roller driven by a second motor in sequence along the moving direction of the adhesive tape from unfolding to winding, and an input roller for clamping and conveying the adhesive tape is arranged between the unfolding roller and the winding roller; the height adjusting assembly is used for adjusting the tension of the adhesive tape through height change; the self-adaptive rotating speed assembly is used for adjusting the rotating speed of the unfolding roller through tension change; the self-adaptive rotating speed assembly is coaxially arranged between the unfolding roller and an output shaft of the first motor; the height adjusting assembly is arranged between the input roller and the winding roller; in the production process of the pressure-sensitive adhesive tape, the tension of the adhesive tape is released and adjusted through length adjustment between the unfolding roller and the winding roller, the adhesive tape is wound again, and the stability of the thickness of the wound adhesive tape is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure-sensitive tape production devices, in particular to a production device capable of adjusting the winding tension of pressure-sensitive tapes. Background Art

[0002] The utility model patent CN218619475U discloses a tape winding device for tape production equipment, including a frame and a winding servo motor, a winding opening and closing roller, a winding roller, and a winding pressure roller cylinder respectively installed on the frame. The winding pressure roller cylinder drives the pressure roller movable seat to move up and down. A diameter measuring resistance ruler is installed in front of the pressure roller movable seat, and a length sensor is installed behind the frame. The length sensor detects the length of the tape passing by. The diameter measuring resistance ruler and the length sensor are respectively electrically connected to a controller. When the user requires that the outer diameter of the wound tape reaches a certain value as qualified, the controller uses the outer diameter data as the judgment standard. When the outer diameter of the wound tape reaches the set value, the controller controls the winding servo motor to stop running. When the user requires that the winding length of the wound tape reaches a certain value as qualified, the controller uses the tape length data as the judgment standard. When the tape length data reaches the set value, the controller controls the winding servo motor to stop running, meeting the needs of different customers. Before winding the tape, it is necessary to readjust the tension of the tape. Once the tension of the tape during the winding process is inconsistent and the winding speed is relatively fixed, it will cause uneven tightness of the winding. Even if the outer diameter of the winding reaches the set target, it is difficult to ensure the consistency of the winding length. Summary of the Invention

[0003] The purpose of the utility model is to provide a production device for pressure-sensitive tapes. During the production process of the pressure-sensitive tapes, the utility model adjusts the tension of the tape by releasing and adjusting through length adjustment between the unwinding roller and the winding roller, and rewinds to maintain the stability of the tape thickness after winding.

[0004] To solve this technical problem, the technical solution of the utility model is: a production device for pressure-sensitive tapes, which sequentially includes an unwinding roller driven by a first motor and a winding roller driven by a second motor along the moving direction of the tape from unwinding to winding. An input roller for clamping and pulling the tape is arranged between the unwinding roller and the winding roller;

[0005] It further includes a height adjustment component for adjusting the tape tension by changing the height and an adaptive speed component for adjusting the rotation speed of the unwinding roller according to the tension change;

[0006] The adaptive speed component is coaxially arranged between the output shaft of the unwinding roller and the first motor;

[0007] The height adjustment component is arranged between the input roller and the winding roller.

[0008] Further improvement: The height adjustment component includes a positioning roller with a height difference in the vertical direction and an adjustment roller that adjusts its position according to the change in tape tension. The adjustment roller is installed on a slide rail in the vertical direction, and the adjustment roller moves up and down in the vertical direction along the slide rail as the tape tension changes. When the tension of the continuous tape in the present utility model is relatively large, the adjustment roller at a high position moves downward under the pressure of the tape to adapt to the change in tension after the tape is unwound, so that the unwound tape is in a natural unwound state.

[0009] Further improvement: The adjustment roller is connected to a position adjustment member through a connecting member.

[0010] Further improvement: The position adjustment member is a spring arranged in the vertical direction or a motor signal-connected to a pressure sensor for detecting tape tension.

[0011] Further improvement: The adjustment roller is higher than the winding roller and the positioning roller. In the present utility model, by adjusting the height position difference between the adjustment roller and the positioning roller and the winding roller, the tension of the tape is ensured to be stable within a certain range, so as to ensure that the tape is wound again under relatively stable tension conditions, and then the winding length is determined by the winding thickness.

[0012] Further improvement: The adaptive speed component includes a ball bearing sleeved on the output shaft of the first motor and connecting plates fixed to the output shaft on both sides of the ball bearing along the axial direction of the output shaft. The circumferential edge of the connecting plate facing the unwinding roller is provided with a ratchet structure along the tape unwinding direction. Correspondingly, the unwinding roller is provided with at least one set of limiting mechanisms facing and along the ratchet structure of the connecting plate. The limiting mechanism includes a spring piece and a claw, one end of the spring piece is fixed to the unwinding roller, and the spring piece presses the claw into the ratchet structure. In the present utility model, the adaptive speed component is used in cooperation with the height adjustment component to release the tape pressure. During use, the height adjustment component is on one side of the input roller, and the adaptive speed component is on the side where the tape enters the input roller. Due to the continuity of the tape structure, when the height adjustment component does not release the stress sufficiently, the tape pulls the unwinding roller, and under the action of the adaptive speed component, the tape roll on the unwinding roller rotates relative to the output shaft of the first motor, releasing a longer tape to cooperate with the release of the tape tension, which is convenient for rewinding.

[0013] Further improvement: Three sets of the limiting mechanisms are evenly arranged along the circumference of the connecting plate.

[0014] Further improvement: The spring piece has a structure bent towards the ratchet structure.

[0015] Further improvement: One end of the claw is hinged to the side wall of the unwinding roller, and the free end of the opening claw is kept in a tendency of being pressed into the ratchet structure under the drive of the spring piece.

[0016] By adopting the above technical solutions, the beneficial effects of the present utility model are:

[0017] In the process of the present utility model unfolding and winding along the tape, a height adjustment component for adjusting the tape tension through height change and an adaptive speed component for adjusting the rotation speed of the unfolding roller through tension change are provided. The adaptive speed component is coaxially arranged between the output shafts of the unfolding roller and the first motor, and the height adjustment component is arranged between the input roller and the winding roller. During the process of tape unfolding, once the tension is released and the tape shrinks, the tape between the winding tube and the unfolding roller will change synchronously. Therefore, the present utility model is provided with both a height adjustment component and an adaptive speed component. After the tape unfolds and releases tension and shortens, it is first affected by the downward action of the height adjustment component to cooperate with the release of the tape tension. When the adjustment of the tape length by the height adjustment component is insufficient to meet the tape length change or the rotation speed of the input roller cannot meet the winding speed, at this time, due to the continuous structure of the tape, the input roller applies a pulling force to the tape of the unfolding roller, and the unfolding roller is driven to rotate relative to the output shaft of the first motor through the adaptive speed component to release the tape, realizing the unfolding and rewinding of the tape, effectively ensuring that the tape releases tension effectively during the process of unfolding to rewinding, and the tension is consistent after winding, so as to realize monitoring the overall length of the obtained tape roll through the change of winding thickness, improve production efficiency, and facilitate the control of product specification consistency. Description of the Drawings

[0018] Figure 1 is a flowchart of the unfolding - winding of a production device for pressure - sensitive tape related to the present utility model;

[0019] Figure 2 is a perspective view of the present utility model;

[0020] Figure 3 is a perspective view of the present utility model;

[0021] Figure 4 is a perspective view of the adaptive speed component in the present utility model;

[0022] Figure 5 is a perspective view of the adaptive speed component in the present utility model (hiding the connecting plate).

[0023] In the figure:

[0024] First motor 1; Unfolding roller 2; Second motor 3; Winding roller 4; Input roller 5; Height adjustment component 6; Positioning roller 61; Adjusting roller 62; Connecting piece 621; Slide rail 63; Position adjustment member 64; Adaptive speed component 7; Ball bearing 71; Connecting plate 72; Ratchet structure 73; Limiting mechanism 74; Elastic piece 741; Claw 742 。 Detailed Embodiment

[0025] To further explain the technical solution of the present utility model, the present utility model will be elaborated in detail through specific embodiments below.

[0026] This embodiment discloses a production device for pressure-sensitive tapes. As Figures 1 to 5 shown, along the moving direction of the tape from unwinding to winding, it successively includes an unwinding roller 2 driven by a first motor 1 and a winding roller 4 driven by a second motor 3. An input roller 5 for clamping and transporting the tape is arranged between the unwinding roller 2 and the winding roller 4;

[0027] It further includes a height adjustment assembly 6 for adjusting the tape tension by height change and an adaptive speed component 7 for adjusting the rotation speed of the unwinding roller 2 by tension change;

[0028] The adaptive speed component 7 is coaxially arranged between the output shaft of the unwinding roller 2 and the first motor 1;

[0029] The height adjustment assembly 6 is arranged between the input roller 5 and the winding roller 4.

[0030] The height adjustment assembly 6 in this embodiment includes a positioning roller 61 with a height difference in the vertical direction and an adjustment roller 62 that adjusts its position according to the change of tape tension. The adjustment roller 62 is installed on a slide rail 63 in the vertical direction, and the adjustment roller 62 moves up and down in the vertical direction along the slide rail 63 as the tape tension changes. The slide rail 63 is arranged on the mounting frame and fixed to the mounting plane; in this embodiment, when the continuous tape tension is large, the adjustment roller 62 at a high position moves downward under the pressure of the tape to adapt to the change of tape tension, so that the tape is in a natural unwinding state.

[0031] The adjustment roller 62 in this embodiment is connected to a position adjustment member 64 through a connecting member 621.

[0032] The position adjustment member 64 in this embodiment is a spring arranged in the vertical direction or a motor signal-connected with a pressure sensor for detecting tape tension.

[0033] The adjustment roller 62 in this embodiment is higher than the winding roller 4 and the positioning roller 61. In this embodiment, by adjusting the height position difference between the adjustment roller 62, the positioning roller 61 and the winding roller 4, the tape tension is ensured to be stable within a certain range, so as to ensure that the tape is wound again under relatively stable tension conditions, and then the winding length is determined by the winding thickness.

[0034] The adaptive speed component 7 in this embodiment includes a ball bearing 71 sleeved on the output shaft of the first motor 1 and connecting plates 72 fixed to the output shaft on both sides of the ball bearing 71 along the axial direction of the output shaft. A ratchet structure 73 is provided on the connecting plate 72 and is inclined along the circumferential edge towards the unwinding roller 2 in the tape unwinding direction. Correspondingly, at least one set of limiting mechanisms 74 is provided on the unwinding roller 2 towards and along the ratchet structure 73 of the connecting plate 72. The limiting mechanism 74 includes a leaf spring 741 and a claw 742 with one end fixed to the unwinding roller 2. The leaf spring 741 presses the claw 742 into the ratchet structure 73. In this embodiment, the adaptive speed component 7 is used in cooperation with the height adjustment component 6 to release the tape pressure. During use, the height adjustment component 6 is on one side of the input roller 5, and the adaptive speed component 7 is on the tape inlet side of the input roller 5. Due to the continuity of the tape structure, when the height adjustment component 6 does not release the stress sufficiently, the tape pulls the unwinding roller 2, and under the action of the adaptive speed component 7, the tape roll on the unwinding roller 2 rotates relative to the output shaft of the first motor 1, releasing more tape to release the tape tension, which is convenient for rewinding.

[0035] In this embodiment, three groups of the limiting mechanisms 74 are evenly arranged along the circumference of the connecting plate 72.

[0036] The leaf spring 741 in this embodiment has a structure that bends towards the ratchet structure 73.

[0037] In this embodiment, one end of the claw 742 is hinged to the side wall of the unwinding roller 2, and the free end of the claw keeps a tendency to be pressed into the ratchet structure 73 under the drive of the leaf spring 741.

[0038] During the process of the tape in this embodiment being unwound and wound, a height adjustment component 6 for adjusting the tape tension by changing the height and an adaptive speed component 7 for adjusting the rotation speed of the unwinding roller 2 by changing the tension are provided. The adaptive speed component 7 is coaxially arranged between the output shaft of the unwinding roller 2 and the first motor 1, and the height adjustment component 6 is arranged between the input roller 5 and the winding roller 4. During the unwinding process of the tape, once the tension is released and the tape contracts, the tape between the winding tube and the unwinding roller 2 will change synchronously. Therefore, in this embodiment, both the height adjustment component 6 and the adaptive speed component 7 are provided. After the tape is unwound and the released tension causes it to shorten, it is first affected by the downward movement of the height adjustment component 6 to cooperate with the release of the tape tension. When the adjustment of the tape length by the height adjustment component 6 is insufficient to meet the tape length change or the rotation speed of the input roller 5 cannot meet the winding speed, at this time, due to the continuous structure of the tape, the input roller 5 applies a pulling force to the tape on the unwinding roller 2, and the adaptive speed component 7 drives the unwinding roller 2 to rotate relative to the output shaft of the first motor 1 to release the tape, realizing the unwinding and rewinding of the tape, effectively ensuring that the tape releases the tension effectively during the process from unwinding to rewinding, and the tension is consistent after winding. Thus, it is possible to monitor the overall length of the obtained tape roll by the change in the winding thickness, improve production efficiency, and facilitate the control of the consistency of product specifications.

Claims

1. A production device for a pressure-sensitive adhesive tape, characterized in that: The belt conveyor includes an unwinding roller driven by a first motor and a winding roller driven by a second motor in the moving direction from unwinding to winding of the belt, and an input roller for clamping and transporting the belt is arranged between the unwinding roller and the winding roller; Also included is a height adjustment component for adjusting the tension of the adhesive tape by height variation and an adaptive speed component for adjusting the speed of the unwinding roller by tension variation; The adaptive speed component is coaxially arranged between the unwinding roller and the output shaft of the first motor; The height adjustment assembly is arranged between the input roller and the winding roller.

2. A production device for a pressure-sensitive adhesive tape as claimed in claim 1, characterized in that: The height adjustment assembly includes a positioning roller with a height difference in the vertical direction and an adjusting roller that adjusts the position by changing the belt tension. The adjusting roller is installed on a vertical slide rail, and the adjusting roller moves up and down in the vertical direction along the slide rail as the belt tension changes.

3. A production device for a pressure-sensitive adhesive tape as claimed in claim 2, characterized in that: The adjusting roller is connected to the position adjusting member through a connecting member.

4. A production device for a pressure-sensitive adhesive tape as claimed in claim 3, characterized in that: The position adjusting member is a spring arranged in a vertical direction or a motor whose signal is connected to a pressure sensor for detecting the tension of the adhesive tape.

5. A production device for a pressure-sensitive adhesive tape as claimed in claim 2, characterized in that: The adjusting roller is higher than the winding roller and the positioning roller.

6. A production device for a pressure-sensitive adhesive tape as claimed in claim 1, characterized in that: The adaptive speed component includes a ball bearing sleeved on the output shaft of the first motor and a connecting plate fixed to the output shaft on both sides of the ball bearing along the axial direction of the output shaft. The connecting plate is provided with a ratchet structure along the unfolding direction of the tape on the circumferential edge facing the unfolding roller. Correspondingly, the unfolding roller is provided with at least one set of limiting mechanisms toward and along the ratchet structure of the connecting plate. The limiting mechanism includes a spring sheet and a claw fixed at one end to the unfolding roller, and the spring sheet presses the claw into the ratchet structure.

7. A production device for a pressure-sensitive adhesive tape as claimed in claim 6, characterized in that: Three groups of the limiting mechanisms are evenly arranged along the circumference of the connecting plate.

8. A production device for a pressure-sensitive adhesive tape as claimed in claim 6, characterized in that: The spring sheet has a structure bent toward the ratchet structure.

9. A production device for a pressure-sensitive adhesive tape as claimed in claim 6, characterized in that: One end of the clamping claw is hinged to the side wall of the unfolding roller, and the free end of the clamping claw maintains a tendency to be pressed into the ratchet structure under the drive of the spring sheet.

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