Precise coating device for high-viscosity heat-sensitive adhesive tape

Abstract

The utility model relates to a precise coating device for a high-viscosity thermosensitive adhesive tape, which comprises a die head and a die lip, an overflow groove along the coating length direction of the die head is arranged in the die head, a feed pipe is arranged at the bottom of the overflow groove along the length direction, a feed hole is arranged on the feed pipe along the length direction, and the feed pipe is externally connected with a feed pipe; a plurality of locking adjusting seats which are sequentially arranged in the length direction of the positioning cross beam are locked on the positioning cross beam through a plurality of torsion bolts respectively, electric control fine adjustment bolts are connected to the locking adjusting seats in a penetrating mode, the electric control fine adjustment bolts perpendicularly abut against the die lip, servo electric control bolt guns are arranged outside the electric control fine adjustment bolts in a matched mode, and the servo electric control bolt guns are connected with a controller. And the controller is connected with the adhesive tape online thickness tester. The die lip coating device is simple in structure, high in automation degree and capable of effectively adjusting die lip coating precision.

Description

Technical Field

[0001] This utility model relates to an adhesive coating device, specifically a precision coating device for high-viscosity heat-sensitive adhesive tape. Background Technology

[0002] In the production of high-viscosity thermal adhesive tape, when the adhesive is applied to the base fabric through the die head, the high viscosity of the adhesive makes the traditional die lip coating method prone to uneven local coating. The existing method of adjusting the die lip manually by bolt adjustment is time-consuming, labor-intensive, and has poor adjustment accuracy. At the same time, the tightness of the bolt locking base directly affects the adjustment accuracy of the bolt on the die lip. Summary of the Invention

[0003] This invention provides a high-viscosity thermal adhesive tape precision coating device with a simple structure, high degree of automation, and the ability to effectively adjust the coating accuracy of the die lip.

[0004] The technical solution adopted by this utility model is: a precision coating device for high-viscosity heat-sensitive adhesive tape, including a die head and a die lip, characterized in that: the die head is provided with an overflow groove along the coating length direction, the bottom of the overflow groove is provided with a feed pipe along the length direction, the feed pipe is provided with a feed hole along the length direction, and the feed pipe is connected to a supply pipe; it also includes a positioning beam, on which multiple torsion bolts lock multiple locking adjustment seats arranged sequentially along the length direction of the positioning beam, an electrically controlled fine-tuning bolt is threaded through the locking adjustment seat, the electrically controlled fine-tuning bolt is perpendicular to the die lip, the electrically controlled fine-tuning bolt is equipped with a servo electrically controlled bolt gun, the servo electrically controlled bolt gun is connected to a controller, and the controller is connected to an online tape thickness tester.

[0005] The feed pipe branches into two or more feed branch pipes, which are evenly distributed along the axial direction of the feed pipe and connected to the feed pipe.

[0006] The feed branch pipe is equipped with a feed solenoid regulating valve.

[0007] Each locking adjustment seat is fitted with two electrically controlled fine-tuning bolts that are set along the length of the positioning beam.

[0008] The electrically controlled fine-tuning bolt is perpendicular to the front part of the die lip, which is located at the die lip outlet.

[0009] The beneficial effects of this utility model are as follows: The feed pipe is distributed to the feed pipe via an adjustable flow feed branch pipe. The feed roller on the feed pipe feeds the lower part of the overflow groove, from which the overflow is fed into the die head and then downwards to the die lip for coating. This effectively ensures a stable supply of high-viscosity pressure-sensitive adhesive along the length of the die lip, effectively avoiding uneven coating thickness caused by excessive or insufficient local adhesive supply, thus improving coating accuracy. Before starting the machine, a torque bolt controls the consistent tightening torque of the locking adjustment seat on the positioning beam, helping to avoid initial errors during subsequent adjustment of the electrically controlled fine-tuning bolt on the locking adjustment seat. When adjusting the opening size of the die lip, the adhesive thickness data in the width direction is sent to the controller via an online tape thickness tester. The controller then controls the servo-controlled electric bolt gun at the corresponding position to drive the electrically controlled fine-tuning bolt, continuing to tighten or loosen the die lip, thereby adjusting the coating thickness at the die lip. The control is highly automated and precise. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] In the diagram: 1. Feed pipe; 2. Feed branch pipe; 3. Feed solenoid regulating valve; 4. Feed pipe; 5. Die head; 6. Overflow groove; 7. Positioning crossbeam; 8. Torque bolt; 9. Locking adjustment seat; 10. Electrically controlled fine-tuning bolt; 11. Servo electrically controlled bolt gun; 12. Die lip; 13. Controller; 14. Adhesive tape; 15. Online adhesive tape thickness tester. Detailed Implementation

[0012] The following explanation, in conjunction with the accompanying drawings, will provide further details.

[0013] Figure 1As shown: A precision coating device for high-viscosity heat-sensitive tape includes a feed pipe 1, a feed branch pipe 2, a feed electromagnetic regulating valve 3, a feed pipe 4, a die head 5, an overflow groove 6, a positioning crossbeam 7, a torque bolt 8, a locking adjusting seat 9, an electrically controlled fine-tuning bolt 10, a servo electrically controlled bolt gun 11, a die lip 12, a controller 13, and an online tape thickness tester 15. The die head 5 is equipped with an overflow groove 6 along the coating length direction. The bottom of the overflow groove 6 is provided with a feed pipe 4 along the length direction. The feed pipe is provided with a feed hole along the length direction. The feed pipe 1 branches into two or more feed branch pipes 2, which are evenly distributed along the axial direction of the feed pipe and connected to the feed pipe 4. The feed branch pipe 2 is equipped with a feed electromagnetic regulating valve 3. A positioning beam 7 is connected to the coating head. The positioning beam 7 is parallel to the length direction of the die head 5. The positioning beam 7 is locked by multiple torque bolts 8 to multiple locking adjustment seats 9 arranged sequentially along the length direction of the positioning beam. The locking adjustment seat 9 is connected to an electrically controlled fine adjustment bolt 10. The electrically controlled fine adjustment bolt 10 is perpendicular to the front of the die lip 12 corresponding to the lower outlet of the die head 5. The electrically controlled fine adjustment bolt 10 is equipped with a servo electrically controlled bolt gun 11. The servo electrically controlled bolt gun 11 is connected to a controller 13. The controller 13 is connected to an online tape thickness tester 15 corresponding to the coated tape 14.

[0014] Based on this embodiment, two electrically controlled fine-tuning bolts, which are set along the length of the positioning beam, can be threaded onto each locking adjustment seat.

Claims

1. A precision coating device for high-viscosity heat-sensitive adhesive tape, comprising a die head and a die lip, characterized in that: The die head is provided with an overflow groove along the coating length direction. A feed pipe is provided at the bottom of the overflow groove along the length direction. A feed hole is provided on the feed pipe along the length direction. The feed pipe is connected to a supply pipe. It also includes a positioning beam. Multiple locking adjustment seats arranged sequentially along the length direction of the positioning beam are locked on the positioning beam by multiple torsion bolts. Electrically controlled fine-tuning bolts are connected to the locking adjustment seats. The electrically controlled fine-tuning bolts are perpendicular to the die lip. A servo electrically controlled bolt gun is provided on the outside of the electrically controlled fine-tuning bolts. The servo electrically controlled bolt gun is connected to a controller. The controller is connected to an online tape thickness tester.

2. The high-viscosity thermal adhesive tape precision coating device according to claim 1, characterized in that: The feed pipe branches into two or more feed branch pipes, which are evenly distributed along the axial direction of the feed pipe and connected to the feed pipe.

3. The high-viscosity thermal adhesive tape precision coating device according to claim 2, characterized in that: The feed branch pipe is equipped with a feed solenoid regulating valve.

4. The high-viscosity thermal adhesive tape precision coating device according to claim 1, characterized in that: Each locking adjustment seat is fitted with two electrically controlled fine-tuning bolts that are set along the length of the positioning beam.

5. A precision coating device for high-viscosity thermal adhesive tape according to claim 1 or 4, characterized in that: The electrically controlled fine-tuning bolt is perpendicular to the front part of the die lip, which is located at the die lip outlet.

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