Tension adjusting device of release film coating machine

Abstract

The utility model provides a kind of tension adjusting device of release film coating machine, it is related to tension adjusting field, including mounting bracket, the bottom of both sides of mounting bracket is fixed with fixed plate, the top of fixed plate is symmetrically penetrated and is equipped with through-hole, the inside of mounting bracket is provided with tensioning roller, the inside of mounting bracket is provided with adjusting compression mechanism, the top edge of mounting bracket is provided with fixed mechanism;The tension adjusting device of release film coating machine, by rotating carousel, drive bidirectional screw rod rotation, make slider mutually far away in the outside of slide bar, make first connecting seat mutually far away, further make second connecting seat drive moving plate descend, make rotating frame descend, so that tensioning roller compresses film, so that rotating frame extrudes pressure sensor, read pressure using display, so as to be convenient for adjusting tension according to need, make that film tensioning is stable, constant tightness is carried out to release film, avoid affecting subsequent coating quality, improve the practicality of device.

Description

Technical Field

[0001] This utility model is specifically a tension adjustment device for a release film coating machine, belonging to the field of tension adjustment technology. Background Technology

[0002] Release film, also known as peeling film, release film, or release paper, is usually made by plasma treatment or coating the surface of plastic film with fluorine or silicone release agents to increase the release force of plastic film. This allows it to exhibit a very light and stable release force for various organic pressure-sensitive adhesives. The coating process often requires the use of a special coating machine, and the release film needs to be stretched when using the coating machine. Chinese Patent Publication No. CN206188098U discloses a film tension adjustment device, including a base, conveying rollers on both sides of the base, and two symmetrical adjustment grooves on both sides of the base, with each adjustment groove located between the two conveying rollers. An adjustment roller is also provided between the two adjustment grooves, and both ends of the adjustment roller can slide on the adjustment grooves. This invention has a simple structure, low production cost, and facilitates adjustment of the film conveying tension. However, existing tension adjustment rollers use spring tensioning or rely on the weight of the tension roller itself to apply downward pressure to the release film for tensioning. This limits the range of tension applied to the release film. When the release film becomes loose or tight during transport, the tension cannot be adjusted accordingly, thus affecting the subsequent coating quality and reducing the practicality of the equipment. Therefore, a new technical solution needs to be designed to address this issue. Utility Model Content

[0003] The purpose of this invention is to provide a tension adjustment device for a release film coating machine to solve the above-mentioned problems. This addresses the issue in the prior art where the tension cannot be adjusted based on whether the film is loose or tight, thus affecting the subsequent coating quality and reducing the practicality of the device.

[0004] This utility model is achieved through the following technical solution: a tension adjustment device for a release film coating machine, including a mounting frame, a fixing plate fixed to the bottom of both sides of the mounting frame, through holes symmetrically opened on the top of the fixing plate, a tension roller provided on the inner side of the mounting frame, an adjusting and pressing mechanism provided on the inner side of the mounting frame, and a fixing mechanism provided on the top edge of the mounting frame.

[0005] Preferably, the adjusting clamping mechanism includes a bidirectional screw that rotates through the top between the two sides inside the mounting frame. Turntables are fixed at both ends of the bidirectional screw. Slider blocks are symmetrically screwed to the outer side of the bidirectional screw. A first connecting seat is fixed to the bottom of the slider. A connecting rod rotates inside the first connecting seat. A movable plate is provided inside the mounting frame. A second connecting seat is symmetrically fixed to the top of the movable plate. A connecting rod is symmetrically opened through the top of the movable plate. A rotating frame is fixed to the bottom end of the connecting rod.

[0006] Preferably, the adjusting clamping mechanism includes a pressure sensor fixed to the bottom center of the movable plate by bolts, a display fixed to the top center of the movable plate, a sliding rod between the top of the two sides of the mounting bracket, limit grooves extending through the bottom of both sides of the mounting bracket, and limit blocks fixed to both sides of the movable plate.

[0007] Preferably, the slider slides on the outside of the slide rod to limit the slider and make the slider move stably, and one end of the connecting rod rotates inside the second connecting seat to make the first connecting seat and the second connecting seat linked.

[0008] Preferably, the tension roller rotates between the two inner sides of the rotating frame, and the pressure sensor is electrically connected to the display.

[0009] Preferably, the limiting block slides inside the limiting groove, and the outer sidewall of the limiting block is in contact with the inner sidewall of the limiting groove.

[0010] Preferably, the fixing mechanism includes an L-shaped plate fixed to the top edge of the mounting bracket, a one-way screw rotating through the top edge of the L-shaped plate, a drive motor fixed to the top edge of the L-shaped plate, a movable cylinder screwed to the outer wall of the one-way screw, a connecting plate fixed to the bottom of the movable cylinder, an insert rod fixed to the bottom center of the connecting plate, a connecting ring fixed to the outer side of one of the turntables, insertion holes evenly opened on the outer wall of the connecting ring, and limit rods symmetrically fixed to the top of the connecting plate.

[0011] Preferably, the drive motor is electrically connected to an external control switch for easy control of the drive motor, and the output shaft end of the drive motor is fixedly connected to the top end of the one-way screw. The limiting rod passes through the top of the L-shaped plate to limit the connection plate and make the connection plate move stably.

[0012] This invention provides a tension adjustment device for a release film coating machine, which has the following beneficial effects: The tension adjustment device of this release film coating machine, by adjusting the setting of the pressing mechanism, rotates the turntable, which drives the bidirectional screw to rotate, causing the sliders to move away from each other on the outside of the slide bar, and the first connecting seats to move away from each other. This causes the connecting rod to deflect vertically, which in turn causes the second connecting seat to drive the moving plate to descend, and the rotating frame to descend, thereby causing the tension roller to press the film. Continuing to rotate the turntable, the moving plate descends on the outside of the connecting rod, causing the rotating frame to press against the pressure sensor. The pressure is read on the display, which allows for easy adjustment of the tension force as needed, ensuring stable film tension and constant tension on the release film, avoiding affecting the subsequent coating quality and improving the practicality of the device.

[0013] The tension adjustment device of this release film coating machine, through the setting of the fixing mechanism, aligns the insertion hole with the insertion rod. By turning on the drive motor through the control switch, the unidirectional screw rotates, which in turn causes the moving cylinder to descend, driving the connecting plate to descend, so that the insertion rod is embedded in the insertion hole, fixing the connecting ring, thereby fixing the turntable, preventing the bidirectional screw from rotating, ensuring the stability of tension, preventing the tension roller from loosening, and preventing the film from loosening. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the adjusting and pressing mechanism of this utility model; Figure 3 This is a schematic diagram of the fixing mechanism structure of this utility model; Figure 4 This is a schematic diagram of the installation structure of the movable cylinder of this utility model.

[0015] [Explanation of Key Component Symbols] 1. Mounting bracket; 2. Fixing plate; 3. Through hole; 4. Adjusting clamping mechanism; 401. Bidirectional screw; 402. Turntable; 403. Slider; 404. First connecting seat; 405. Connecting rod; 406. Moving plate; 407. Second connecting seat; 408. Connecting rod; 409. Rotating frame; 410. Pressure sensor; 411. Display; 412. Slide rod; 413. Limiting groove; 414. Limiting block; 5. Fixing mechanism; 501. L-shaped plate; 502. One-way screw; 503. Drive motor; 504. Moving cylinder; 505. Connecting plate; 506. Insert rod; 507. Connecting ring; 508. Insertion hole; 509. Limiting rod; 6. Tensioning roller. Detailed Implementation

[0016] This utility model provides a tension adjustment device for a release film coating machine. Example

[0017] A tension adjustment device for a release film coating machine includes a mounting frame 1, with fixing plates 2 fixed to the bottom of both sides of the mounting frame 1, and through holes 3 symmetrically opened on the top of the fixing plates 2. A tension roller 6 is provided on the inner side of the mounting frame 1, and an adjusting and pressing mechanism 4 is provided on the inner side of the mounting frame 1.

[0018] Please refer to it again. Figure 2 The adjusting clamping mechanism 4 includes a bidirectional screw 401 that rotates through the top between the two sides inside the mounting frame 1. Turntables 402 are fixed to both ends of the bidirectional screw 401. Slider blocks 403 are symmetrically screwed to the outer side of the bidirectional screw 401. A first connecting seat 404 is fixed to the bottom of the slider 403. A connecting rod 405 rotates inside the first connecting seat 404. A movable plate 406 is provided inside the mounting frame 1. A second connecting seat 407 is symmetrically fixed to the top of the movable plate 406. A symmetrical through-hole is formed at the top of the movable plate 406. There is a connecting rod 408, and a rotating frame 409 is fixed to the bottom end of the connecting rod 408; the adjusting clamping mechanism 4 includes a pressure sensor 410 fixed to the bottom center of the movable plate 406 by bolts, a display 411 fixed to the top center of the movable plate 406, a slide rod 412 between the top of the two sides inside the mounting bracket 1, limit grooves 413 extending through the bottom of both sides of the mounting bracket 1, and limit blocks 414 fixed to both sides of the movable plate 406; the slider 403 slides on the outside of the slide rod 412, and one end of the connecting rod 405 rotates at... Inside the second connecting seat 407; the tension roller 6 rotates between the two sides inside the rotating frame 409, and the pressure sensor 410 is electrically connected to the display 411; the limiting block 414 slides inside the limiting groove 413, and the outer side wall of the limiting block 414 is in contact with the inner side wall of the limiting groove 413; by adjusting the setting of the pressing mechanism 4, the turntable 402 is rotated, which drives the bidirectional screw 401 to rotate, so that the sliders 403 move away from each other outside the slider 412, so that the first connecting seats 404 move away from each other, and thus the connecting rod 40 5. The device deflects vertically, causing the second connecting seat 407 to lower the moving plate 406, which in turn lowers the rotating frame 409. This causes the tension roller 6 to press the film. The turntable 402 continues to rotate, causing the moving plate 406 to lower outside the connecting rod 408. This causes the rotating frame 409 to press the pressure sensor 410. The pressure is read by the display 411, which allows for easy adjustment of the tension force as needed. This ensures stable film tension, constant tension of the release film, avoids affecting the subsequent coating quality, and improves the practicality of the device. Example

[0019] Please refer to it again. Figure 3 and Figure 4A fixing mechanism 5 is provided on the top edge of the mounting frame 1. The fixing mechanism 5 includes an L-shaped plate 501 fixed to the top edge of the mounting frame 1. A one-way screw 502 is rotatably driven through the top edge of the L-shaped plate 501. A drive motor 503 is fixed to the top edge of the L-shaped plate 501. A movable cylinder 504 is screwed to the outer wall of the one-way screw 502. A connecting plate 505 is fixed to the bottom of the movable cylinder 504. An insertion rod 506 is fixed to the bottom center of the connecting plate 505. A connecting ring 507 is fixed to the outer side of a turntable 402. Insertion holes 508 are evenly opened on the outer wall of the connecting ring 507. Limiting rods 509 are symmetrically fixed to the top of the connecting plate 505. Motor 503 is electrically connected to an external control switch, and the output shaft end of drive motor 503 is fixedly connected to the top end of one-way screw 502. Limiting rod 509 passes through the top of L-shaped plate 501. Through the setting of fixing mechanism 5, the insertion hole 508 is aligned with the insertion rod 506. By turning on drive motor 503 through control switch, one-way screw 502 is rotated, which in turn causes moving cylinder 504 to descend, driving connecting plate 505 to descend, so that insertion rod 506 is embedded in insertion hole 508, fixing connecting ring 507, thereby fixing turntable 402, preventing bidirectional screw 401 from rotating, ensuring tension stability, preventing tension roller 6 from loosening, and preventing film loosening.

[0020] When using this utility model: Working principle: The device is installed at a designated location. Rotating the turntable 402 drives the bidirectional screw 401 to rotate, causing the sliders 403 to move away from each other outside the slide rod 412, and the first connecting seats 404 to move away from each other. This causes the connecting rod 405 to deflect vertically, which in turn causes the second connecting seat 407 to drive the moving plate 406 to descend, and the rotating frame 409 to descend, thereby pressing the tension roller 6 against the film. Continuing to rotate the turntable 402 causes the moving plate 406 to descend outside the connecting rod 408, thereby causing the rotating frame 409 to descend. The pressure sensor 410 reads the pressure using the display 411, allowing for easy adjustment of the tension force as needed to ensure stable film tension. The drive motor 503 is turned on by the control switch, causing the unidirectional screw 502 to rotate, which in turn causes the moving cylinder 504 to descend, driving the connecting plate 505 to descend as well. This causes the insertion rod 506 to be embedded in the insertion hole 508, fixing the connecting ring 507 and thus securing the turntable 402. This prevents the bidirectional screw 401 from rotating, ensuring stable tension and preventing the tension roller 6 from loosening.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tension adjustment device for a release film coating machine, comprising a mounting frame (1), wherein fixing plates (2) are fixed to the bottom of both sides of the mounting frame (1), and through holes (3) are symmetrically opened through the top of the fixing plates (2), and tension rollers (6) are provided on the inner side of the mounting frame (1), characterized in that: An adjusting and pressing mechanism (4) is provided on the inner side of the mounting bracket (1), and a fixing mechanism (5) is provided on the top edge of the mounting bracket (1).

2. The tension regulating device of a release film coating machine according to claim 1, characterized in that: The adjusting and pressing mechanism (4) includes a bidirectional screw (401) that rotates through the top between the two sides inside the mounting frame (1). Turntables (402) are fixed at both ends of the bidirectional screw (401). Slider blocks (403) are symmetrically screwed to the outside of the bidirectional screw (401). A first connecting seat (404) is fixed at the bottom of the slider (403). A connecting rod (405) rotates inside the first connecting seat (404). A movable plate (406) is provided inside the mounting frame (1). A second connecting seat (407) is symmetrically fixed at the top of the movable plate (406). A connecting rod (408) is symmetrically opened through the top of the movable plate (406). A rotating frame (409) is fixed at the bottom of the connecting rod (408).

3. The tension regulating device of a release film coating machine according to claim 2, characterized in that: The adjusting clamping mechanism (4) includes a pressure sensor (410) fixed to the bottom center of the movable plate (406) by bolts, a display (411) fixed to the top center of the movable plate (406), a slide bar (412) between the top of the two sides of the mounting bracket (1), a limit groove (413) through the bottom of both sides of the mounting bracket (1), and limit blocks (414) fixed to both sides of the movable plate (406).

4. The tension regulating device of a release film coating machine according to claim 3, characterized in that: The slider (403) slides on the outside of the slide bar (412), and one end of the connecting rod (405) rotates inside the second connecting seat (407).

5. The tension regulating device of a release film coating machine according to claim 3, characterized in that: The tension roller (6) rotates between the two sides inside the rotating frame (409), and the pressure sensor (410) is electrically connected to the display (411).

6. The tension regulating device of a release film coating machine according to claim 3, characterized in that: The limiting block (414) slides inside the limiting groove (413), and the outer side wall of the limiting block (414) is in contact with the inner side wall of the limiting groove (413).

7. The tension regulating device of a release film coating machine according to claim 6, characterized in that: The fixing mechanism (5) includes an L-shaped plate (501) fixed to the top edge of the mounting bracket (1). A one-way screw (502) is rotatably inserted through the top edge of the L-shaped plate (501). A drive motor (503) is fixed to the top edge of the L-shaped plate (501). A movable cylinder (504) is screwed to the outer wall of the one-way screw (502). A connecting plate (505) is fixed to the bottom of the movable cylinder (504). An insert rod (506) is fixed to the middle of the bottom of the connecting plate (505). A connecting ring (507) is fixed to the outer side of one of the turntables (402). Insert holes (508) are evenly opened on the outer wall of the connecting ring (507). Limiting rods (509) are symmetrically fixed to the top of the connecting plate (505).

8. The tension adjusting device for a release film coating machine according to claim 7, characterized in that: The drive motor (503) is electrically connected to an external control switch, and the output shaft end of the drive motor (503) is fixedly connected to the top end of the one-way screw (502). The limiting rod (509) passes through the top of the L-shaped plate (501).

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