A kind of anti-sticking device for cutting optical adhesive with circular knife and die

Abstract

The present invention relates to the technical field of optical adhesive cutting, and specifically to an anti-sticking device for a circular knife die for cutting optical adhesive, comprising a disc and a cylinder and a circular knife die body fixedly connected to the middle parts of the upper and lower ends of the disc respectively, wherein the outer wall of the cylinder is provided with a gear ring through the rotation of a driving mechanism; through the mutual cooperation between the disc, the cylinder, the driving mechanism, the gear ring, the rotating rod, the first electric push rod, the connecting plate, the driving member, the connecting block, the V-shaped scraper, the cleaning mechanism, the degumming mechanism and the circular ring, the V-shaped scraper of the device can automatically remove the glue adhered to the cutting edge of the cutting die without the need to disassemble the circular knife die, and no manual disassembly and cleaning are required, thereby improving production efficiency. After cleaning, the anti-sticking agent can be simultaneously applied to the cutting edge of the cutting die to form an anti-sticking layer to reduce the secondary adhesion of the glue, thereby ensuring cutting accuracy and product yield; the V-shaped scraper can automatically clean the cutter head to a certain extent, thereby improving continuous operation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of optical adhesive cutting, in particular to an anti-sticking device for a circular knife die for cutting optical adhesive. Background Art

[0002] Optical adhesives are high-performance adhesives used in the optical field. They possess high light transmittance, low haze, and strong weather resistance, enabling them to bond optical components or functional films. They are primarily used in applications such as lamination of consumer electronic displays and assembly of optical instruments, ensuring the performance of optical systems and serving as a key material in the optical industry chain. In the production of optical adhesive stamping and cutting, circular knife dies, due to their high efficiency and precision, are widely used for cutting optical adhesives in electronic display and touchscreen manufacturing.

[0003] However, in actual production, optical adhesive is inherently highly viscous. The circular knife die's rapid cutting motion constantly contacts the adhesive, causing adhesive residue to easily adhere to the blade edge. This residue gradually accumulates, increasing the die's operating resistance and reducing cutting efficiency. It can also cause issues like burrs and dimensional deviations, becoming a key factor restricting production efficiency and product quality.

[0004] Currently, most methods for dealing with adhesive adhesion on the cutting edge of circular knife dies rely on manual disassembly and cleaning. This traditional method is not only time-consuming and labor-intensive, but frequent disassembly also causes wear and tear on the die, reducing its service life, interrupting the production process, and severely reducing production efficiency. Furthermore, even after cleaning, if effective anti-adhesion measures are not taken in a timely manner, the die will quickly adhere to adhesive again during subsequent use, affecting cutting accuracy and causing quality issues such as dimensional deviation and uneven edges in the product, increasing the defective product rate and raising production costs. Based on this, we propose an anti-adhesion device for circular knife dies used in optical adhesive cutting. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-sticking device for a circular knife die for cutting optical adhesives to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A device for preventing optical glue from sticking to a circular knife mold, comprising a disc and a cylinder and a circular knife mold body fixedly connected to the middle of the upper and lower ends of the disc respectively, the outer wall of the cylinder being provided with a gear ring through a rotation sleeve of a driving mechanism, the lower end edge of the gear ring being fixedly connected to a rotating rod, the lower end of the rotating rod being fixedly connected to a first electric push rod, the telescopic shaft end of the first electric push rod being fixedly connected to a connecting plate, the lower end of the connecting plate being connected to a connecting block through a driving member, the lower end of the connecting plate being fixedly connected to a V-shaped scraper at the lower edge of the connecting block near the side of the circular knife mold body, the V-shaped blade of the V-shaped scraper being located below the blade of the circular knife mold body, a cleaning mechanism being provided between the connecting block and the connecting plate, and a degumming mechanism being provided between the connecting block and the circular knife mold body, the lower end of the disc being fixedly connected to a circular ring near the edge.

[0007] Preferably, the driving mechanism includes a square plate, which is fixedly connected to the outer wall of the cylinder, and the lower end of the square plate is fixedly connected to a motor, the rotating shaft end of the motor is fixedly connected to a gear, and the gear is meshed with a gear ring.

[0008] Preferably, the driving member includes a second electric push rod, which is fixedly connected to the side of the connecting plate away from the disc, and the telescopic shaft end of the second electric push rod is fixedly connected to a connecting column, and the outer wall of the connecting column is fixedly connected to the side of the connecting block away from the disc.

[0009] Preferably, the cleaning mechanism includes a sliding column, which is movable and runs through the side wall of the connecting plate, and the sliding column is in contact with the outer wall of the ring, and an L-shaped plate is fixedly connected to the edge of the outer wall of the sliding column close to the ring. The lower end of the L-shaped plate is fixedly connected to a block, and a vibrating member is provided at the upper end of the block, and a cutter is jointly in contact with the lower end of the block and the side wall of the connecting block, an elastic mechanism is provided between the cutter and the block, and a limit member is provided between the sliding column and the connecting plate.

[0010] Preferably, the vibration member includes a vibration motor body, and the vibration motor body is fixedly connected to the middle part of the upper end of the block.

[0011] Preferably, the elastic mechanism includes a U-shaped block, the U-shaped block is fixedly connected to the lower end of the block, and the rear end of the U-shaped block is fixedly connected to a second spring, and the rear end of the second spring is fixedly connected to the front end of the cutter.

[0012] Preferably, the limiting member includes a limiting block, which is fixedly connected to the end of the sliding column away from the disc, and a tension spring is fixedly connected between the limiting block and the connecting plate, and the tension spring is slidingly sleeved on the outer wall of the sliding column. The limiting block is movable through the limiting column at the upper edge of one side close to the connecting plate, and the limiting column is fixedly connected to the side wall of the connecting plate.

[0013] Preferably, the degumming mechanism includes a fixing ring, which is fixedly connected to the rear end of the connecting block, and the inner side of the fixing ring is fixedly connected to a storage barrel, the middle part of the lower end of the storage barrel is connected to a conduit, the end of the conduit is fixedly connected to a V-shaped foam, the front end of the V-shaped foam is fixedly connected to the rear end of the V-shaped scraper, and the V-shaped inclined surface of the V-shaped foam fits the blade of the circular knife mold body, a flow control mechanism is provided between the storage barrel and the circular ring, and a feeding port is connected to the rear part of the outer wall of the storage barrel near the upper edge.

[0014] Preferably, the flow control mechanism includes an arc-shaped plate and an L-shaped rod, the arc-shaped plate is fixedly connected to the front edge of the lower end of the circular ring, and the middle part of the upper end of the arc-shaped plate is fixedly connected to an arc-shaped inclined plane block, the L-shaped rod is movably inserted into the upper end inner wall of the storage barrel from top to bottom, and the lower end of the L-shaped rod is fixedly connected to a pressure plate, the lower end of the pressure plate is fitted with the middle part of the inner bottom end of the storage barrel, and an elastic member is provided between the L-shaped rod and the storage barrel.

[0015] Preferably, the elastic member includes a baffle, which is fixedly sleeved on the outer wall of the L-shaped rod near the middle, and a first spring is fixedly connected between the baffle and the inner top end of the storage cylinder, and the first spring is slidably sleeved on the outer wall of the L-shaped rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: through the mutual cooperation among the disc, cylinder, drive mechanism, gear ring, rotating rod, first electric push rod, connecting plate, drive member, connecting block, V-shaped scraper, cleaning mechanism, degumming mechanism and circular ring, the V-shaped scraper of this device can automatically remove the adhesive material adhered to the cutting edge of the circular knife without disassembling the circular knife die, eliminating the need for manual disassembly and cleaning, thereby improving production efficiency. After cleaning, the cutting edge of the circular knife can be simultaneously coated with an anti-sticking agent to form an anti-sticking layer to reduce secondary adhesion of the adhesive material, thereby ensuring cutting accuracy and product yield; the V-shaped scraper can automatically clean the blade head to a certain extent, thereby improving continuous operation efficiency. This device integrates adhesive removal, anti-sticking treatment, and scraper cleaning into one, greatly improving the consistency and reliability of optical adhesive stamping and cutting through automated operation processes, and significantly reducing the intensity and cost of manual maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A is enlarged to show the diagram;

[0019] Figure 3 A diagram showing the structure of the circular ring, arc-shaped plate, arc-shaped inclined surface block, storage cylinder and L-shaped rod of the present invention;

[0020] Figure 4It is a structural diagram showing the cleaning structure and degumming mechanism of the present invention;

[0021] Figure 5 For the present invention Figure 4 The enlarged view of point B in FIG.

[0022] Figure 6 For the present invention Figure 1 Another perspective of the display diagram;

[0023] Figure 7 is a cross-sectional view of the storage cartridge of the present invention;

[0024] Figure 8 For the present invention Figure 7 The enlarged view of point C in the figure;

[0025] Figure 9 For the present invention Figure 7 The enlarged view of D in FIG.

[0026] Figure 10 This is a state display diagram after the rubber material is cleaned up in the present invention.

[0027] In the accompanying drawings, the list of components represented by each reference number is as follows: 1. Disc; 2. Cylinder; 3. Motor; 4. Square plate; 5. Gear; 6. Gear ring; 7. Rotating rod; 8. First electric push rod; 9. Connecting plate; 10. Second electric push rod; 11. Connecting column; 12. Connecting block; 13. V-shaped scraper; 14. Sliding column; 15. Limiting block; 16. Tension spring; 17. Limiting column; 18. Ring; 19. Arc plate; 20. Arc-shaped inclined block; 21. Storage cylinder; 22. Feeding port; 23. L-shaped rod; 24. Conduit; 25. V-shaped foam; 26. Baffle; 27. First spring; 28. Pressure plate; 29. ​​Fixed ring; 30. L-shaped plate; 31. Block; 32. Vibration motor body; 33. U-shaped block; 34. Circular knife die body; 35. Cutter; 36. Second spring. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The present invention provides a technical solution: Figure 1 - Figure 10The anti-sticking device for a circular knife die for cutting optical glue shown in the figure comprises a disc 1 and a cylinder 2 and a circular knife die body 34 fixedly connected to the middle of the upper and lower ends of the disc 1 respectively. The outer wall of the cylinder 2 is provided with a gear ring 6 by a driving mechanism. The lower end edge of the gear ring 6 is fixedly connected to a rotating rod 7. The lower end of the rotating rod 7 is fixedly connected to a first electric push rod 8. The telescopic shaft end of the first electric push rod 8 is fixedly connected to a connecting plate 9. The lower part of the connecting plate 9 is connected to a connecting block 12 through a driving member. The lower edge of the connecting block 12 is fixedly connected to a V-shaped scraper 13 on one side of the circular knife die body 34. The V-shaped blade of the V-shaped scraper 13 is located below the blade of the circular knife die body 34. A cleaning mechanism is provided between the connecting block 12 and the connecting plate 9, and a degumming mechanism is provided between the connecting block 12 and the circular knife die body 34. The lower end of the disc 1 is fixedly connected to a ring 18 (as shown in FIG. Figure 6 shown).

[0030] The driving mechanism includes a square plate 4, which is fixedly connected to the outer wall of the cylinder 2, and the lower end of the square plate 4 is fixedly connected to the motor 3, the rotating shaft end of the motor 3 is fixedly connected to the gear 5, and the gear 5 is meshed with the gear ring 6.

[0031] The driving member includes a second electric push rod 10, which is fixedly connected to the side of the connecting plate 9 away from the disc 1, and the telescopic shaft end of the second electric push rod 10 is fixedly connected to a connecting column 11, and the outer wall of the connecting column 11 is fixedly connected to the side of the connecting block 12 away from the disc 1.

[0032] The cleaning mechanism includes a slide post 14 (such as Figure 4 As shown in the figure, the sliding column 14 is movable through the side wall of the connecting plate 9, and the sliding column 14 is in contact with the outer wall of the ring 18, and an L-shaped plate 30 is fixedly connected to the edge of the outer wall of the sliding column 14 close to the ring 18. The lower end of the L-shaped plate 30 is fixedly connected to a block 31, and a vibration member is provided at the upper end of the block 31. A cutter 35 is jointly fitted between the lower end of the block 31 and the side wall of the connecting block 12, and an elastic mechanism is provided between the cutter 35 and the block 31. A limiter is provided between the sliding column 14 and the connecting plate 9.

[0033] The vibration member includes a vibration motor body 32 , which is fixedly connected to the middle portion of the upper end of the block 31 .

[0034] The elastic mechanism includes a U-shaped block 33 , which is fixedly connected to the lower end of the block 31 , and a second spring 36 is fixedly connected to the rear end of the U-shaped block 33 , and a rear end of the second spring 36 is fixedly connected to the front end of the cutter 35 .

[0035] The limiting component includes a limiting block 15, which is fixedly connected to the end of the sliding column 14 away from the disc 1, and a tension spring 16 is fixedly connected between the limiting block 15 and the connecting plate 9. The tension spring 16 is slidably sleeved on the outer wall of the sliding column 14. The limiting block 15 is movable through the limiting column 17 at the upper edge of one side close to the connecting plate 9, and the limiting column 17 is fixedly connected to the side wall of the connecting plate 9.

[0036] The degumming mechanism includes a fixing ring 29, which is fixedly connected to the rear end of the connecting block 12, and the inner side of the fixing ring 29 is fixedly connected to the storage cylinder 21, the lower middle part of the storage cylinder 21 is connected to the conduit 24, the end of the conduit 24 is fixedly connected to the V-shaped foam 25, and the front end of the V-shaped foam 25 is fixedly connected to the rear end of the V-shaped scraper 13 (such as Figure 4 As shown), the V-shaped inclined surface of the V-shaped foam 25 fits with the blade of the circular knife die body 34, a flow control mechanism is provided between the storage barrel 21 and the circular ring 18, and a feeding port 22 is connected to the rear portion of the outer wall of the storage barrel 21 near the upper edge (by providing the feeding port 22, the anti-sticking agent inside the storage barrel 21 can be conveniently and timely fed).

[0037] The flow control mechanism includes an arc plate 19 and an L-shaped rod 23. The arc plate 19 is fixedly connected to the front edge of the lower end of the ring 18 (such as Figure 3 As shown), the middle of the upper end of the arc plate 19 is fixedly connected to the arc-shaped inclined surface block 20, the L-shaped rod 23 is inserted into the upper end inner wall of the storage cylinder 21 from top to bottom, and the lower end of the L-shaped rod 23 is fixedly connected to the pressure plate 28 (as shown Figure 9 As shown in FIG, the lower end of the pressure plate 28 is fitted with the middle portion of the inner bottom end of the storage barrel 21, and an elastic member is provided between the L-shaped rod 23 and the storage barrel 21.

[0038] The elastic member includes a baffle 26, which is fixedly mounted on the outer wall of the L-shaped rod 23 near the middle, and a first spring 27 is fixedly connected between the baffle 26 and the inner top of the storage barrel 21. The first spring 27 is slidably mounted on the outer wall of the L-shaped rod 23.

[0039] Working principle: Figure 1 In this state, when it is necessary to clean the glue adhered to the cutter head of the circular knife die body 34, first connect the motor 3 to the external power supply, the rotating shaft of the motor 3 can drive the gear 5 to rotate counterclockwise, the gear 5 can drive the gear ring 6 to rotate clockwise, the gear ring 6 can drive the rotating rod 7 to rotate clockwise around the axis of the disc 1, and the rotating rod 7 can drive the first electric push rod 8, the connecting plate 9, the second electric push rod 10, the connecting column 11, the connecting block 12, the V-shaped scraper 13, the V-shaped foam 25, the fixing ring 29, the storage cylinder 21 and the L-shaped rod 23 to rotate synchronously; as the rotating rod 7 continues to rotate, the V-shaped scraper 13 can scrape off the glue adhered to the cutting edge of the circular knife die body 34 during this process.

[0040] At the same time, the L-shaped rod 23 will contact the inclined surface of one end of the arc-shaped inclined surface block 20 along the upper end surface of the arc plate 19 during the rotation process. At this time, the lower end surface of the horizontal part of the L-shaped rod 23 will move up along the inclined surface of the arc-shaped inclined surface block 20. During the upward movement of the L-shaped rod 23, the baffle plate 26 and the pressure plate 28 can be driven to move upward synchronously. The baffle plate 26 can compress the first spring 27 between it and the reservoir barrel 21. The upward movement of the pressure plate 28 can allow the anti-sticking agent inside the reservoir barrel 21 to flow into the inside of the conduit 24 and then into the inside of the V-shaped foam 25. As the V-shaped foam 25 rotates, the V-shaped foam 25 can apply the anti-sticking agent to the cutting edge of the circular knife die body 34; when the L-shaped rod 23 When it moves along the surface of the arc-shaped inclined plane block 20 to the inclined plane at the other end, the L-shaped rod 23 moves along the inclined plane. Under the action of the first spring 27, the baffle 26 and the L-shaped rod 23 can be reset downward, and the L-shaped rod 23 can drive the pressure plate 28 to reset. At this time, the pressure plate 28 is in contact with the inner bottom end of the reservoir barrel 21 when it is reset, so that the anti-sticking agent inside the reservoir barrel 21 will not continue to flow out with the conduit 24. Until the L-shaped rod 23 rotates one circle and contacts the inclined plane of the arc-shaped inclined plane block 20 again, the L-shaped rod 23 can drive the pressure plate 28 to move upward again. (This reciprocating cycle can make the anti-sticking agent inside the reservoir barrel 21 be discharged intermittently and will not flow out continuously, reducing waste).

[0041] When the V-shaped scraper 13 completes the removal of the adhesive material adhered to the cutting edge of the circular knife die body 34 as the rotating rod 7 continues to rotate, and when the V-shaped scraper 13 returns to the initial position (as shown in FIG. Figure 1As shown), at this time, the motor 3 is disconnected from the external power supply; at the same time, a small amount of rubber may adhere to the front end of the V-shaped scraper 13. At this time, the second electric push rod 10 is connected to the external power supply, and the telescopic shaft end of the second electric push rod 10 is moved downward. The telescopic shaft end of the second electric push rod 10 can drive the connecting column 11 to move downward, and the connecting column 11 can drive the connecting block 12, the V-shaped scraper 13 and the V-shaped foam 25 to move downward synchronously until the V-shaped scraper 13 as a whole moves to the circular knife die body 34. At this time, the second electric push rod 10 is disconnected from the external power supply; then, the first electric push rod 8 is connected to the external power supply, and the telescopic shaft end of the first electric push rod 8 extends outward to drive the connecting plate 9 to move synchronously, and the connecting plate 9 can drive the V-shaped scraper 13 and the limit column 17 to move synchronously until the V-shaped scraper 13 moves to the outer side of the circular knife die body 34; at the same time, under the action of the tension spring 16 (the tension spring 16 is always in a stretched state), the tension spring 16 can make the limit block 15 and the sliding column 1 4 does not move compared to the disc 1, and the slide column 14 is tightly attached to the outer wall of the bottom column ring 18; until the V-shaped scraper 13 moves to the right below the cutter 35, at this time, the first electric push rod 8 is disconnected from the external power supply; then, the second electric push rod 10 is connected to the external power supply, and the telescopic shaft end of the second electric push rod 10 is retracted upward, and the telescopic shaft end of the second electric push rod 10 can drive the connecting block 12 and the V-shaped scraper 13 to move upward. During this process, the rubber material adhered to the front end of the V-shaped scraper 13 will be It will be cut off by the cutter 35. Finally, the second electric push rod 10 is disconnected from the external power supply. At the same time, a small amount of rubber may adhere to the cutter head of the cutter 35, but the adhesion area of ​​the rubber is small at this time. At this time, the vibration motor body 32 is connected to the external power supply. The vibration motor body 32 can drive the block 31, the U-shaped block 33, the second spring 36 and the cutter 35 to vibrate. The vibration of the cutter 35 can shake off the small amount of rubber adhered to the cutter head of the cutter 35. Finally, the vibration motor body 32 is disconnected from the external power supply.

[0042] At this time, the status of the device (such as Figure 10 As shown in the figure, you can continue to punch and cut the optical adhesive with the punching machine.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An anti-sticking device for a circular knife die for cutting optical adhesives, comprising a disc (1), a cylinder (2) and a circular knife die body (34) fixedly connected to the middle of the upper and lower ends of the disc (1), and characterized in that: The outer wall of the cylinder (2) is provided with a gear ring (6) through a rotation sleeve of a driving mechanism, the lower end edge of the gear ring (6) is fixedly connected to a rotating rod (7), the lower end of the rotating rod (7) is fixedly connected to a first electric push rod (8), the telescopic shaft end of the first electric push rod (8) is fixedly connected to a connecting plate (9), the lower part of the connecting plate (9) is connected to a connecting block (12) through a driving member, the lower edge of the connecting block (12) close to the circular knife die body (34) is fixedly connected to a V-shaped scraper (13), the V-shaped blade of the V-shaped scraper (13) is located below the blade of the circular knife die body (34), a cleaning mechanism is provided between the connecting block (12) and the connecting plate (9), and a degumming mechanism is provided between the connecting block (12) and the circular knife die body (34), and the lower end of the disc (1) is fixedly connected to a ring (18) close to the edge.

2. The anti-sticking device for circular knife die cutting of optical adhesive according to claim 1, characterized in that: The driving mechanism comprises a square plate (4), the square plate (4) being fixedly connected to the outer wall of the cylinder (2), and the lower end of the square plate (4) being fixedly connected to a motor (3), the rotating shaft end of the motor (3) being fixedly connected to a gear (5), and the gear (5) being meshed with a gear ring (6).

3. The anti-sticking device for circular knife die cutting of optical adhesive according to claim 1, characterized in that: The driving member comprises a second electric push rod (10), the second electric push rod (10) being fixedly connected to a side of the connecting plate (9) away from the disc (1), and a telescopic shaft end of the second electric push rod (10) being fixedly connected to a connecting column (11), and an outer wall of the connecting column (11) being fixedly connected to a side of the connecting block (12) away from the disc (1).

4. The anti-sticking device for circular knife die cutting of optical adhesive according to claim 1, characterized in that: The cleaning mechanism includes a sliding column (14), the sliding column (14) is movable and extends through the side wall of the connecting plate (9), and the sliding column (14) is in contact with the outer wall of the ring (18), and an L-shaped plate (30) is fixedly connected to the edge of the outer wall of the sliding column (14) on the side close to the ring (18), the lower end of the L-shaped plate (30) is fixedly connected to a block (31), the upper end of the block (31) is provided with a vibrating member, and a cutter (35) is in contact with the lower end of the block (31) and the side wall of the connecting block (12), an elastic mechanism is provided between the cutter (35) and the block (31), and a limiting member is provided between the sliding column (14) and the connecting plate (9).

5. The anti-sticking device for circular knife die cutting of optical adhesive according to claim 4, characterized in that: The vibration member comprises a vibration motor body (32), and the vibration motor body (32) is fixedly connected to the middle part of the upper end of the block (31).

6. The anti-sticking device for circular knife die cutting of optical adhesive according to claim 4, characterized in that: The elastic mechanism comprises a U-shaped block (33), the U-shaped block (33) being fixedly connected to the lower end of the block (31), and the rear end of the U-shaped block (33) being fixedly connected to a second spring (36), and the rear end of the second spring (36) being fixedly connected to the front end of the cutter (35).

7. The anti-sticking device for circular knife die cutting of optical adhesive according to claim 4, characterized in that: The limiting member includes a limiting block (15), the limiting block (15) is fixedly connected to one end of the sliding column (14) away from the disc (1), and a tension spring (16) is fixedly connected between the limiting block (15) and the connecting plate (9), the tension spring (16) is slidably sleeved on the outer wall of the sliding column (14), and the limiting block (15) moves through the limiting column (17) at the upper edge of one side close to the connecting plate (9), and the limiting column (17) is fixedly connected to the side wall of the connecting plate (9).

8. The anti-sticking device for circular knife die cutting of optical adhesive according to claim 1, characterized in that: The degumming mechanism comprises a fixing ring (29), the fixing ring (29) being fixedly connected to the rear end of the connecting block (12), and the inner side of the fixing ring (29) being fixedly connected to a storage barrel (21), the middle portion of the lower end of the storage barrel (21) being connected to a conduit (24), the end of the conduit (24) being fixedly connected to a V-shaped foam (25), the front end of the V-shaped foam (25) being fixedly connected to the rear end of the V-shaped scraper (13), and the V-shaped inclined surface of the V-shaped foam (25) being in contact with the blade of the circular knife die body (34), a flow control mechanism being provided between the storage barrel (21) and the circular ring (18), and a feeding port (22) being connected to the rear portion of the outer wall of the storage barrel (21) near the upper edge.

9. The anti-sticking device for circular knife die cutting of optical adhesive according to claim 8, characterized in that: The flow control mechanism includes an arc plate (19) and an L-shaped rod (23), wherein the arc plate (19) is fixedly connected to the front edge of the lower end of the circular ring (18), and the middle part of the upper end of the arc plate (19) is fixedly connected to an arc-shaped inclined surface block (20), the L-shaped rod (23) is movably inserted into the inner wall of the upper end of the storage barrel (21) from top to bottom, and the lower end of the L-shaped rod (23) is fixedly connected to a pressure plate (28), the lower end of the pressure plate (28) is in contact with the middle part of the inner bottom end of the storage barrel (21), and an elastic member is provided between the L-shaped rod (23) and the storage barrel (21).

10. The anti-sticking device for circular knife die cutting of optical adhesive according to claim 9, characterized in that: The elastic member comprises a baffle (26), the baffle (26) being fixedly sleeved on the outer wall of the L-shaped rod (23) near the middle thereof, and a first spring (27) being fixedly connected between the baffle (26) and the inner top end of the agent storage barrel (21), the first spring (27) being slidably sleeved on the outer wall of the L-shaped rod (23).

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