Coating and laminating equipment for release paper production

Abstract

The invention relates to the technical field of release paper production and processing, and discloses release paper production coating and film spraying equipment which comprises a cooling roller body and a film spraying machine extrusion head arranged on one side of the cooling roller body, traction rollers are arranged on the two sides of the cooling roller body, and the release paper production coating and film spraying equipment further comprises supporting pipes symmetrically and fixedly communicated with the two ends of the cooling roller body. The pressure of the scraper blade on the outer surface of the cooling roller body is increased when the cooling efficiency of the cooling roller body is reduced through the change of the inner diameters of the limiting grooves formed in the inner side walls of the limiting rings, so that the cleaning quality of the scraper blade on residual plastic films on the outer surface of the cooling roller body is ensured; the situation that the compaction uniformity of the cooling roller body on release paper is reduced due to accumulation and thickening of residual plastic film on the outer surface of the cooling roller body is avoided, the situation that the effect of subsequent silicon coating and other procedures is affected due to uneven compaction of a film coating layer is prevented, the film coating quality and production efficiency of the release paper are guaranteed, and the stability of the production process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of release paper production and processing, and in particular to a release paper production coating and laminating device. Background Art

[0002] During the production and processing of release paper, a molten plastic film such as polyethylene (PE) or polypropylene (PP) is covered on the surface of the release paper through the extruder head of the laminating machine. It is then cooled and solidified by a cooling roller to give it better anti-adhesion properties. The cooling roller is produced through precision grinding and has good wear resistance and scraping properties.

[0003] To ensure the coverage of the plastic film, the width of the plastic film extruded by the laminating machine extruder head must be slightly larger than the width of the release paper. This may result in some plastic film residue on the surface of the cooling roller. To prevent these residual film layers from affecting subsequent processes, a scraper is usually used to scrape them off during production. Since the residual plastic film will also be converted from a molten state to a solid state under the cooling effect of the cooling roller, the scraper pressure does not need to be too high to scrape off the residual plastic film on the cooling roller surface, so as to prevent it from destroying the compaction uniformity between the release paper and the plastic film, causing the plastic film to delaminate during the subsequent silicon coating process, affecting the production quality of the release paper. When the cooling efficiency of the cooling roller decreases due to increased scale on the inner wall or other reasons, the adhesion between the plastic film and the cooling roller surface increases, and the scraper pressure needs to be increased to better scrape it off. However, if the scraper is pressed on the cooling roller surface with high pressure for a long time, it may cause wear on the cooling roller surface, which not only shortens the service life of the cooling roller, but may also make the cooling roller surface uneven, thus affecting the uniformity of the cooling process and adversely affecting the compaction quality between the release paper and the plastic film. Summary of the Invention

[0004] The present application proposes a release paper production coating and laminating equipment, which has the advantages of increasing the pressure of the scraper on the outer surface of the cooling roller body by changing the inner diameter of the limiting groove opened on the inner wall of the limiting ring, thereby ensuring the quality of the scraper cleaning the residual plastic film on the outer surface of the cooling roller body, avoiding the situation where the cooling roller body compacts the release paper less uniformly due to the accumulation and thickening of the residual plastic film on the outer surface of the cooling roller body, preventing the laminating layer from affecting the effects of subsequent processes such as silicon coating due to uneven compaction, ensuring the laminating quality and production efficiency of the release paper, and improving the stability of the production process. It is used to solve the problem of incomplete removal of the residual plastic film on the surface of the cooling roller and reduced compaction uniformity of the release paper during the release paper laminating process due to the fact that the scraper pressure cannot change with the cooling efficiency of the cooling roller.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a release paper production coating and laminating device, comprising a cooling roller body and a laminating machine extruder head arranged on one side of the cooling roller body, traction rollers are arranged on both sides of the cooling roller body, and also comprises support tubes symmetrically fixedly connected to the two ends of the cooling roller body, the ends of the two support tubes away from the cooling roller body are respectively connected to a water inlet pipe or a water outlet pipe in a rotatable manner, a main adjustment ring is fixedly installed on the outer side of the end of the water outlet pipe close to the cooling roller body, and a secondary adjustment ring is fixedly installed on the outer side of the end of the water inlet pipe close to the cooling roller body. Two scrapers are commonly provided between the main adjustment ring and the auxiliary adjustment ring. The main adjustment ring is transmission-connected to the scraper. The bottom wall of the scraper fits against the outer surface of the cooling roller body and is used to scrape off the plastic film remaining on the surface of the cooling roller body. A limiting ring is provided on the outer side of the support tube and is transmission-connected to the connecting rod. When the cooling efficiency of the cooling roller body is reduced, the position of the connecting rod and the scraper is changed by adjusting the main adjustment ring, and the pressure of the scraper on the outer surface of the cooling roller body is increased under the action of the limiting ring, so as to more thoroughly remove the plastic film remaining on the surface of the cooling roller body.

[0006] Furthermore, support rods are slidably mounted on the tops of the main adjustment ring and the auxiliary adjustment ring, a connecting rod is fixedly mounted between the two support rods, and the bottom of the connecting rod is fixedly connected to the top of the scraper.

[0007] Furthermore, an adjustment cavity is opened inside the main adjustment ring, and a slider is slidably installed on the inner wall of the adjustment cavity. One end of the slider is fixedly connected to the bottom end of the support rod. The cavity formed by the side wall of the slider away from the support rod and the inner wall of the adjustment cavity is filled with thermal expansion fluid, which is used to support and limit the slider and the support rod.

[0008] Furthermore, an installation groove is provided inside the adjustment chamber, and a spring is fixedly installed on the inner wall of the installation groove. The end of the spring away from the inner wall of the installation groove is fixedly connected to the bottom end of the support rod to assist the thermal expansion fluid in supporting and limiting the support rod.

[0009] Furthermore, a sliding groove is provided on the outside of the regulating cavity and is slidably connected to the support rod to limit the range of movement of the support rod and the slider to prevent the thermal expansion fluid inside the regulating cavity from flowing out.

[0010] Furthermore, a driving member is fixedly installed on the outer side of the support tube for driving the support tube and the cooling roller body to rotate. The top of the driving member is fixedly connected to the limiting ring, and the axis of the limiting ring coincides with the axis of the cooling roller body.

[0011] Furthermore, a limiting groove is provided on the inner wall of the limiting ring, and the outer wall of the connecting rod is fitted with the inner wall of the limiting groove at the end away from the extrusion head of the laminating machine. The inner diameter of the limiting groove at the end away from the extrusion head of the laminating machine is larger than the inner diameter of the limiting groove at the end close to the extrusion head of the laminating machine, which is used to change the pressure of the scraper on the outer surface of the cooling roller body.

[0012] Furthermore, a detection rod is fixedly installed between the two limit rings, the inner wall of the detection rod is in contact with the outer wall of the cooling roller body, and a pressure sensor is fixedly installed inside the detection rod, and the pressure sensor is electrically connected to the control system of the laminating machine.

[0013] The beneficial effects of the present invention are as follows: The present application provides a release paper production coating and laminating equipment. During laminating, the inner diameter of the limiting groove opened on the inner wall of the limiting ring changes, so that when the cooling efficiency of the cooling roller body is reduced, the pressure of the scraper on the outer surface of the cooling roller body is increased. While monitoring the cooling efficiency of the cooling roller body, the quality of the scraper cleaning the residual plastic film on the outer surface of the cooling roller body is guaranteed, avoiding the situation where the compaction uniformity of the cooling roller body on the release paper is reduced due to the accumulation and thickening of the residual plastic film on the outer surface of the cooling roller body, preventing the laminating layer from affecting the effects of subsequent processes such as silicon coating due to uneven compaction, thereby ensuring the laminating quality and production efficiency of the release paper and improving the stability of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. Those skilled in the art can also derive other drawings based on the provided drawings without inventive work. Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic structural diagram of the cooling roller body, the water outlet pipe and the limiting ring of the present invention; Figure 3 This is a schematic structural diagram of the main adjustment ring, auxiliary adjustment ring and connecting rod of the present invention; Figure 4 This is a schematic diagram of the main cross-sectional structure of the main adjustment ring of the present invention; Figure 5 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0015] In the figure: 1. Cooling roller body; 101. Laminating machine extruder head; 2. Traction roller; 3. Support tube; 301. Driving member; 4. Water inlet pipe; 5. Water outlet pipe; 6. Main adjustment ring; 601. Auxiliary adjustment ring; 7. Support rod; 8. Connecting rod; 9. Scraper; 10. Adjustment chamber; 11. Slider; 12. Mounting groove; 13. Spring; 14. Slide; 15. Limiting ring; 16. Limiting groove; 17. Detection rod. DETAILED DESCRIPTION

[0016] 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.

[0017] See Figures 1 to 5 , a release paper production coating and laminating equipment, including a cooling roller body 1, traction rollers 2 are provided on both sides of the cooling roller body 1, and a laminating machine extrusion head 101 for extruding a molten plastic film is provided on the top between the cooling roller body 1 and one of the traction rollers 2. When laminating the release paper, the starting end of the release paper is passed through the upper surface of the traction roller 2 and then partially adhered and then wrapped around the lower surface of the cooling roller body 1, so that the bottom end of the laminating machine extrusion head 101 is placed on the upper surface of the release paper. The release paper passing through the lower surface of the cooling roller body 1 continues to be interspersed between the relevant guide rollers of the laminating machine after passing through the upper surface of the other traction roller 2. Support tubes 3 are fixedly connected at both ends of the cooling roller body 1, and the two support tubes 3 rotate respectively at the ends away from the cooling roller body 1. It is connected with a water inlet pipe 4 or a water outlet pipe 5, and cooling water is input into the interior of the cooling roller body 1 through the water inlet pipe 4. The cooling water flows inside the cooling roller body 1 and then flows out through the water outlet pipe 5. A driving member 301 is fixedly installed on the outside of the support tube 3, which is used to drive the cooling roller body 1 and the support tube 3 to rotate with the control system. During lamination, the laminating machine extrusion head 101 extrude the molten plastic film and cover it on the surface of the release paper under the action of gravity. Then the release paper covered with the plastic film is transported to the cooling roller body 1, and the plastic film is attached to the outer surface of the bottom end of the cooling roller body 1 and is cooled and formed under the cooling effect of the cooling roller body 1. Then, it is pressed on the surface of the release paper under the action of the cooling roller body 1 and the traction roller 2, completing the lamination process of the plastic film.

[0018] See Figures 1 to 3, a main adjusting ring 6 is fixedly installed on the outside of one end of the water outlet pipe 5 close to the cooling roller body 1, and a sub-adjusting ring 601 is fixedly installed on the outside of one end of the water inlet pipe 4 close to the cooling roller body 1. Support rods 7 are slidably installed on the top of the main adjusting ring 6 and the sub-adjusting ring 601. A connecting rod 8 is fixedly installed on the top of the two support rods 7. Two scrapers 9 are symmetrically fixed on the bottom wall of the connecting rod 8. The scrapers 9 are arc-shaped, that is, one side is concave and the other side is convex, and the bottom wall of the scraper 9 fits the outer surface of the cooling roller body 1. The two scrapers 9 are respectively placed at both ends of the cooling roller body 1 near the edge of the release paper. When the release paper is coated, the cooling roller body 1 rotates clockwise (with Figure 1 For example), the plastic film remaining on both ends of the release paper will first adhere to the surface of the cooling roller body 1 and will not contact the convex surface of the scraper 9. The residual plastic film will cool down and solidify as the cooling roller body 1 rotates. Then, when the residual plastic film moves to the concave surface of the scraper 9, it can be easily scraped off by the scraper 9, thereby achieving the purpose of cleaning the residual plastic film on the surface of the cooling roller body 1 and preventing the accumulation of plastic film from affecting the compaction uniformity of the release paper during subsequent lamination.

[0019] See Figure 2 and Figure 4The interior of the main adjusting ring 6 is provided with an adjusting cavity 10, a sliding block 11 is slidingly installed on the inner wall of the adjusting cavity 10, the end of the sliding block 11 away from the adjusting cavity 10 is fixedly connected with the bottom end of the supporting rod 7, the interior of the adjusting cavity 10 is filled with a thermal expansion fluid, the thermal expansion fluid refers to a liquid or gas which changes significantly in volume when the temperature changes, the interior of the main adjusting ring 6 is also provided with an installation groove 12 which is in communication with the adjusting cavity 10, a spring 13 is fixedly installed on the inner wall of the installation groove 12, the end of the spring 13 away from the installation groove 12 is fixedly connected with the bottom end of the supporting rod 7, the outer side of the main adjusting ring 6 is provided with a sliding groove 14 which is limitingly and slidingly connected with the supporting rod 7, for limiting the sliding of the supporting rod 7, and also preventing the thermal expansion fluid in the adjusting cavity 10 from flowing out, when the cooling roller body 1 normally operates, that is, the cooling efficiency is stable, the temperature of the water outlet pipe 5 is relatively stable, and then the thermal expansion fluid in the adjusting cavity 10 is heated and expanded to extrude the sliding block 11, at this time, the spring 13 is compressed, under the action of the elastic force of the spring 13 and the extrusion force of the thermal expansion fluid, the positions of the supporting rod 7, the connecting rod 8 and the scraper 9 are relatively stable, when the cooling efficiency of the cooling roller body 1 is reduced due to the increase of the inner wall scale or other reasons, the temperature of the water outlet pipe 5 will be reduced, and then the volume of the thermal expansion fluid in the adjusting cavity 10 is reduced, under the action of the elastic force of the spring 13, the supporting rod 7 gradually slides to the direction of the adjusting cavity 10, and synchronously drives the connecting rod 8 and the scraper 9 to slide, and then the operator can observe the position change of the connecting rod 8 and the scraper 9 to monitor the cooling efficiency of the cooling roller body 1 in real time, so that the situation that the plastic film is not cooled in time due to the reduced cooling efficiency of the cooling roller body 1, the film layer with different thicknesses is formed, and the film layer is separated in the subsequent processing process is prevented, and the production quality and performance of the release paper are affected.

[0020] In order to ensure that the supporting rod 7, the connecting rod 8 and the scraper 9 can obviously swing under the action of the thermal expansion fluid, the sliding block 11 and the spring 13, a thermal expansion fluid with a high thermal expansion coefficient needs to be used, such as diethyl ether (1.62), methanol (1.1), benzene (1.23), acetone (1.43) and ethanol (1.1), and the chemical stability and safety of the fluid need to be considered (such as diethyl ether and acetone are easy to evaporate, and benzene and methanol are toxic), and therefore ethanol with low toxicity and low volatility can be selected.

[0021] Referring to Figures 1 to 5A limiting ring 15 is fixedly installed on the top of the driving member 301. The limiting ring 15 is aligned with the axis of the cooling roller body 1. A limiting groove 16 is provided on the inner wall of the limiting ring 15. With the axis of the limiting ring 15 as a reference line, the inner diameter of the limiting groove 16 at the end away from the laminating machine extrusion head 101 is larger than the inner diameter of the limiting groove 16 at the end close to the laminating machine extrusion head 101. The outer wall of the connecting rod 8 fits the inner wall of the limiting groove 16 at the end away from the laminating machine extrusion head 101. Therefore, when the connecting rod 8 and the scraper 9 gradually slide toward the laminating machine extrusion head 101 due to the reduction in cooling efficiency of the cooling roller body 1, as the inner diameter of the limiting groove 16 changes, the limiting ring 15 forces the connecting rod 8 through the limiting groove 16. Applying pressure increases the pressure of the scraper 9 on the surface of the cooling roller body 1. At this time, the plastic film remaining on the surface of the cooling roller body 1 increases its viscosity with the surface of the cooling roller body 1 due to the reduced cooling efficiency of the cooling roller body 1. By increasing the pressure of the scraper 9 on the surface of the cooling roller body 1 to better scrape off the plastic film, the plastic film is prevented from adhering to the surface of the cooling roller body 1 due to the reduced cooling efficiency of the cooling roller body 1, and gradually accumulating and thickening as the laminating process proceeds, affecting the compaction uniformity of the cooling roller body 1 on the release paper and the plastic film, so as to achieve the purpose of being able to change the scraping strength of the scraper 9 on the plastic film according to the change of the cooling efficiency of the cooling roller body 1, thereby ensuring the cleaning quality and cleaning efficiency.

[0022] See Figures 1 to 2 A detection rod 17 is fixedly installed between the two limit rings 15. The inner wall of the detection rod 17 fits with the outer wall of the cooling roller body 1. A pressure sensor is fixedly installed inside the detection rod 17. The pressure sensor is electrically connected to the control system of the laminating machine. The detection rod 17 is placed between the scraper 9 and the bottom of the laminating machine extrusion head 101. It will not affect the position change of the scraper 9 and the normal extrusion of the molten plastic film inside the laminating machine extrusion head 101. During normal lamination, the plastic film remaining at both ends of the cooling roller body 1 is rotated and scraped off by the scraper 9. The pressure sensor inside the detection rod 17 will not change in pressure due to sensing the residual plastic film on the surface of the cooling roller body 1. When the cooling roller body 1 is cooled, the pressure sensor will not change in pressure due to sensing the residual plastic film on the surface of the cooling roller body 1. When the cooling efficiency of the roller body 1 is reduced, although the pressure of the scraper 9 on the surface of the cooling roller body 1 is increased to better clean the residual plastic film, it is still possible that the cleaning is not thorough. The outer surface of the cooling roller body 1 is detected by the detection rod 17. If the pressure sensor inside the detection rod 17 undergoes pressure changes continuously for many times, the control system will analyze the relevant pressure signal based on the preset threshold after receiving it, and promptly issue an early warning prompt to the operator, reminding the operator to check and determine whether it is necessary to stop the machine for cleaning, so as to prevent the scraper 9 from not thoroughly cleaning the residual plastic film, resulting in poor adhesion between the release paper and the plastic film, thereby affecting the lamination quality.

[0023] Working principle: During lamination, the laminating machine extrusion head 101 extrude the molten plastic film and cover it on the surface of the release paper under the action of gravity. Then the release paper covered with the plastic film is transported to the cooling roller body 1. The plastic film adheres to the outer surface of the bottom end of the cooling roller body 1 and is cooled and formed under the cooling effect of the cooling roller body 1. Then, under the action of the cooling roller body 1 and the traction roller 2, it is pressed on the surface of the release paper to complete the lamination process of the plastic film. When the release paper is laminar, the residual plastic film at both ends will first adhere to the surface of the cooling roller body 1 and cool and solidify as the cooling roller body 1 rotates. When the residual plastic film moves to the concave surface of the scraper 9, it can be easily scraped off by the scraper 9, thereby achieving the purpose of cleaning the residual plastic film on the surface of the cooling roller body 1 and preventing the accumulation of plastic film from affecting the compaction uniformity of the release paper during subsequent lamination. When the cooling efficiency of the cooling roller body 1 is reduced due to increased scale on the inner wall or other reasons, the volume of the thermal expansion fluid inside the adjusting chamber 10 is reduced, and the support rod 7 gradually slides toward the adjusting chamber 10 under the action of the elastic force of the spring 13, and simultaneously drives the connecting rod 8 and the scraper 9 to slide, so that the operator can monitor the cooling efficiency of the cooling roller body 1 in real time by observing the position changes of the connecting rod 8 and the scraper 9, so as to prevent the plastic film from being cooled in time due to the reduced cooling efficiency of the cooling roller body 1, forming film layers of varying thicknesses, and film layer separation during subsequent processing. At the same time, as the connecting rod 8 slides, the limiting ring 15 applies pressure to the connecting rod 8 through the change in the inner diameter of the limiting groove 16, thereby increasing the pressure of the scraper 9 on the surface of the cooling roller body 1, so as to more thoroughly scrape off the surface of the cooling roller body 1 caused by the reduced cooling efficiency. The residual plastic film with increased viscosity is prevented from adhering to the surface of the cooling roller body 1 due to the reduction in the cooling efficiency of the cooling roller body 1, and gradually accumulating and thickening as the laminating process proceeds, affecting the compaction uniformity of the cooling roller body 1 on the release paper and the plastic film, so as to achieve the purpose of changing the scraping strength of the scraper 9 on the plastic film according to the change of the cooling efficiency of the cooling roller body 1, ensuring the cleaning quality and cleaning efficiency, and increasing the pressure of the scraper 9 on the outer surface of the cooling roller body 1 when the cooling efficiency of the cooling roller body 1 is reduced by the change of the inner diameter of the limiting groove 16 opened on the inner wall of the limiting ring 15, thereby ensuring the cleaning quality of the scraper 9 on the residual plastic film on the outer surface of the cooling roller body 1, avoiding the situation where the compaction uniformity of the cooling roller body 1 on the release paper is reduced due to the accumulation and thickening of the residual plastic film on the outer surface of the cooling roller body 1, and ensuring the laminating quality and production efficiency of the release paper.

[0024] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A release paper production coating and laminating device, comprising a cooling roller body (1) and a laminating machine extruder head (101) arranged on one side of the cooling roller body (1), wherein both sides of the cooling roller body (1) are provided with traction rollers (2), characterized in that: It also includes support tubes (3) symmetrically fixedly connected to both ends of the cooling roller body (1), and the ends of the two support tubes (3) away from the cooling roller body (1) are respectively connected to the water inlet pipe (4) or the water outlet pipe (5) in a rotatable manner, and the outer side of the end of the water outlet pipe (5) close to the cooling roller body (1) is fixedly installed with a main adjustment ring (6), and the outer side of the end of the water inlet pipe (4) close to the cooling roller body (1) is fixedly installed with a secondary adjustment ring (601), and two scrapers (9) are commonly provided between the main adjustment ring (6) and the secondary adjustment ring (601), and the main adjustment ring (6) and the scraper (9) are fixedly installed with the auxiliary adjustment ring (601). The bottom wall of the scraper (9) is in contact with the outer surface of the cooling roller body (1) and is used to scrape off the plastic film remaining on the surface of the cooling roller body (1). A limiting ring (15) is provided on the outer side of the support tube (3). The limiting ring (15) is connected to the connecting rod (8) in a transmission manner. When the cooling efficiency of the cooling roller body (1) decreases, the position of the scraper (9) is changed by adjusting the main adjustment ring (6), and the pressure of the scraper (9) on the outer surface of the cooling roller body (1) is increased under the action of the limiting ring (15), so as to more thoroughly remove the plastic film remaining on the surface of the cooling roller body (1).

2. The release paper production coating and laminating equipment according to claim 1, characterized in that: Support rods (7) are slidably mounted on the tops of the main adjustment ring (6) and the auxiliary adjustment ring (601), a connecting rod (8) is fixedly mounted between the two support rods (7), and the bottom of the connecting rod (8) is fixedly connected to the top of the scraper (9).

3. The release paper production coating and laminating equipment according to claim 2, characterized in that: An adjustment cavity (10) is provided inside the main adjustment ring (6), and a slider (11) is slidably mounted on the inner wall of the adjustment cavity (10), one end of the slider (11) is fixedly connected to the bottom end of the support rod (7), and a cavity formed by a side wall of an end of the slider (11) away from the support rod (7) and an inner wall of the adjustment cavity (10) is filled with a thermal expansion fluid for supporting and limiting the slider (11) and the support rod (7).

4. The release paper production coating and laminating equipment according to claim 3, characterized in that: A mounting groove (12) is further provided inside the regulating cavity (10), and a spring (13) is fixedly mounted on the inner side wall of the mounting groove (12). One end of the spring (13) away from the inner side wall of the mounting groove (12) is fixedly connected to the bottom end of the support rod (7) for assisting the thermal expansion fluid in supporting and limiting the support rod (7).

5. The release paper production coating and laminating equipment according to claim 4, characterized in that: The outer side of the regulating chamber (10) is provided with a sliding groove (14) connected to the support rod (7) in a limited sliding manner, which is used to limit the range of movement of the support rod (7) and the slider (11) and prevent the thermal expansion fluid inside the regulating chamber (10) from flowing out.

6. The release paper production coating and laminating equipment according to claim 1, characterized in that: A driving member (301) is fixedly installed on the outer side of the support tube (3) for driving the support tube (3) and the cooling roller body (1) to rotate. The top of the driving member (301) is fixedly connected to the limiting ring (15), and the axis of the limiting ring (15) coincides with the axis of the cooling roller body (1).

7. The release paper production coating and laminating equipment according to claim 1, characterized in that: A limiting groove (16) is provided on the inner side wall of the limiting ring (15), and the outer side wall of the connecting rod (8) is in contact with the inner side wall of the limiting groove (16) at the end away from the laminating machine extrusion head (101). The inner diameter of the limiting groove (16) at the end away from the laminating machine extrusion head (101) is larger than the inner diameter of the limiting groove (16) at the end close to the laminating machine extrusion head (101), so as to change the pressure of the scraper (9) on the outer surface of the cooling roller body (1).

8. The release paper production coating and laminating equipment according to claim 7, characterized in that: A detection rod (17) is fixedly installed between the two limit rings (15), the inner wall of the detection rod (17) is in contact with the outer wall of the cooling roller body (1), and a pressure sensor is fixedly installed inside the detection rod (17), and the pressure sensor is electrically connected to the control system of the laminating machine.

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