A production device for high-end board covering material impregnated paper

Abstract

The present application relates to the technical fields of impregnated paper production, and particularly relates to a production equipment for high-end board covering material impregnated paper, which comprises an impregnation tank, a guide roller, an air suction cylinder, a negative pressure module, an air suction pump, a sensing module, a scraping module, a linkage module and an adjusting module. The present application forms a negative pressure area behind the impregnation tank, actively forces the impregnation liquid into the paper fiber, accelerates the liquid penetration, and ensures uniform and thorough impregnation. In addition, when encountering thick paper, the system can automatically increase the scraping gap to adapt to the paper thickness, preventing paper jamming or scraping damage. Moreover, in the process of adapting to thick paper, the equipment realizes precise cooperation between liquid supplement and negative pressure: on the one hand, by opening the supplement hole, the liquid is supplemented to the paper surface according to the liquid surface barrier principle, preventing insufficient liquid due to the increase of the scraping gap; on the other hand, the negative pressure suction is automatically increased to overcome the penetration resistance caused by the increase of the thickness.

Description

Technical Field

[0001] This invention relates to the technical field of impregnated paper production, and in particular to a production equipment for impregnated paper used in high-end board covering materials. Background Technology

[0002] Impregnated paper, as an important surface decoration material, is widely used in high-end board materials, furniture manufacturing, and interior decoration. It is typically made from base paper through resin impregnation (such as melamine resin) and drying processes, and is used to adhere to the surface of boards to provide wear-resistant, scratch-resistant, flame-retardant, and aesthetically pleasing decorative effects. With the increasing demands for surface quality in high-end boards, more stringent standards have been set for the uniformity of impregnation and the smoothness of the adhesive distribution on the impregnated paper.

[0003] In existing impregnated paper production processes, such as Chinese Patent Publication No. CN221320510U, an environmentally friendly impregnated paper production equipment is disclosed, including: a housing, a drying mechanism inside the housing, linear guide rails symmetrically arranged on the left and right sides near the top and bottom of the housing, electric sliders inside the linear guide rails, rollers arranged between two electric sliders, fixed seats symmetrically arranged on the inner side of the linear guide rails near the front and back, a sliding groove opened at the top of the fixed seat near the inner side, a sliding rod arranged inside the sliding groove, and an auxiliary roller arranged on the inner side of the sliding rod; the drying mechanism includes a fan; and several drying lamp plates are equidistantly arranged from front to back on the left and right sides near the center of the housing.

[0004] The aforementioned prior art primarily improves the drying effect by increasing the residence time of the impregnated paper inside the drying equipment, without affecting the normal progress of preceding and following processing steps. However, this prior art does not consider the impact of variations in impregnated paper thickness on the impregnation effect. In actual production, if there are differences in paper thickness, at the same conveying speed and impregnation time, thinner paper can be impregnated quickly, while thicker paper, due to its greater natural resistance to liquid penetration, often does not have enough time to be thoroughly impregnated. This leads to insufficient impregnation and insufficient resin content in the thicker paper sections, resulting in uneven surface quality of the finished board and making it difficult to meet the stringent requirements of high-end boards for impregnation depth and physicochemical properties.

[0005] Therefore, there is still room for improvement in the aforementioned existing technologies. Summary of the Invention

[0006] In order to make the impregnated paper more fully impregnated during production, this application provides a production equipment for impregnated paper for high-end board covering materials.

[0007] The technical solution for a production equipment for impregnated paper used in high-end board covering materials provided in this application is as follows:

[0008] A production device for impregnating paper for high-end board covering materials includes an impregnation tank with a support mounted on top; a guide roller rotatably disposed in the impregnation tank for guiding the impregnated paper; an air suction cylinder fixedly disposed on the support; a negative pressure module disposed on the support and cooperating with the air suction cylinder for using negative pressure to adsorb the impregnated paper to ensure impregnation effect; an air suction pump disposed on the outer periphery of the impregnation tank and connected to the air suction cylinder via an air pipe for providing negative pressure to the air suction cylinder; a sensing module disposed on the support for sensing changes in the thickness of the impregnated paper; a scraping module disposed on the support for scraping and repairing the impregnation liquid on the surface of the impregnated paper; a linkage module disposed on the support for transmitting the displacement generated by the sensing module to the scraping module; and an adjustment module disposed in the air suction cylinder for adjusting the suction force according to the thickness of the impregnated paper, wherein the adjustment module is kinetically connected to the linkage module.

[0009] Preferably, the air suction cylinder has uniformly spaced air passages on its outer periphery, and a separator is also installed on the outer periphery of the air suction cylinder. The separator surrounds the air passages, thereby restricting the direction of the negative pressure generated in the air passages and ensuring the stability of the negative pressure direction.

[0010] Preferably, the negative pressure module includes a negative pressure roller, which is coaxially sleeved on the outer periphery of the air suction cylinder and rotates with the air suction cylinder. Negative pressure holes are evenly opened on the outer periphery of the negative pressure roller. A sealing element is installed on the bracket. The lower end of the sealing element is provided with an arc-shaped segment. The arc-shaped segment corresponds to the position of the air passage hole, that is, the arc-shaped segment corresponds to the position where the negative pressure occurs. The arc-shaped segment and the negative pressure roller together form a sealed impregnation space for the negative pressure.

[0011] Preferably, the sensing module includes a slider that is slidably disposed in a sliding slot on the bracket, a first spring connecting the slider and the sliding slot, the first spring serving a reset function; and a sensing wheel that is rotatably disposed at the end of the slider.

[0012] Preferably, the linkage module includes a lever component, which is disposed inside the seal via a rotating shaft. The rotating shaft is eccentrically disposed on the lever component (i.e., not at the center of the lever component), making the lever component form an unequal arm structure. When the sliding component pushes one end of the lever component, the force is amplified by the unequal arm lever structure, thereby driving the scraping module connected to the other end of the lever component to move. One end of the lever component abuts against the end of the sliding component. A transmission component is slidably disposed inside the seal component. The upper end of the transmission component abuts against the end of the lever component, and the lower end of the transmission component abuts against the squeezing block. A secondary transmission component is installed at the end of the transmission component.

[0013] Preferably, the scraping module includes a scraping component, which is slidably disposed in an auxiliary groove opened on the sealing component via an auxiliary component, and a second spring is connected between the auxiliary component and the auxiliary groove, the second spring serving as a reset function; and a squeezing block, which is installed at the end of the scraping component.

[0014] Preferably, the scraper has a liquid collection chamber inside, which is connected to the air suction pump through a negative pressure pipe. The side wall of the liquid collection chamber has an overflow port. When the liquid level in the liquid collection chamber rises to the overflow port, the excess liquid is discharged into the immersion tank through the overflow port. The side of the liquid collection chamber near the negative pressure roller has a replenishment hole.

[0015] Preferably, the replenishment mechanism includes a floating frame slidably disposed in the liquid collection chamber, a third spring connecting the floating frame and the liquid collection chamber, the third spring serving a reset function; the floating frame corresponds to the position of the replenishment hole; a trigger element slidably disposed inside the auxiliary component, a fourth spring connecting the trigger element and the auxiliary component, the fourth spring serving a reset function; a fixed pulley rotatably disposed inside the auxiliary component; and a traction cable, one end of which is connected to the floating frame, and the other end of which is connected to the trigger element via the fixed pulley.

[0016] Preferably, the adjustment module includes an adjustment plate, which is rotatably disposed in an adjustment groove inside the air suction cylinder, a fifth spring connecting the adjustment plate and the adjustment groove, the fifth spring serving as a reset function, and an adjustment hole provided on the adjustment plate; and a toggle member, which is installed on the outside of the adjustment plate, and the toggle member engaging with the secondary transmission member.

[0017] Preferably, the regulating hole corresponds one-to-one with the air passage hole.

[0018] In summary, the beneficial technical effects of this application are as follows:

[0019] This invention discloses a production device for impregnating paper with high-end board coating materials. By creating a negative pressure zone after the impregnation tank, the impregnation liquid is actively forced into the paper fibers, accelerating liquid penetration and ensuring uniform and thorough impregnation. Furthermore, this application uses a sensing module to monitor paper thickness in real time and a linkage mechanism to synchronously adjust the mechanical state. When encountering thicker paper, the system automatically increases the scraping gap to adapt to the paper thickness, preventing paper jams or damage and ensuring the stability of equipment operation. Moreover, in adapting to thicker paper, the equipment achieves precise coordination between liquid replenishment and negative pressure: on the one hand, by opening the replenishment hole and utilizing the principle of liquid surface barrier, liquid is replenished to the paper surface as needed, preventing insufficient liquid retention due to increased scraping gap; on the other hand, the negative pressure suction is automatically increased to overcome the penetration resistance caused by increased thickness. This multi-parameter coordinated adjustment ensures that paper of different thicknesses achieves consistently excellent impregnation results. Attached Figure Description

[0020] Figure 1 This is a first three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 This invention comprises an air suction cylinder, an air suction pump, a negative pressure roller, and an air pipe;

[0023] Figure 4 This is a schematic diagram of the structure between the air suction cylinder and the negative pressure module of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure between the sensing module, the scraping module, and the linkage module of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the adjustment module of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure between the adjusting plate, the actuating component, the transmission component, and the secondary transmission component of the present invention;

[0027] Figure 8 This is the present invention. Figure 5 Enlarged view of a portion at point A;

[0028] Figure 9 This is a schematic diagram of the structure of the supplementary mechanism of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure between the overflow port, negative pressure pipe, and scraper of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Impregnation tank; 2. Guide roller; 3. Air suction cylinder; 4. Negative pressure module; 5. Air suction pump; 6. Sensing module; 7. Scraping module; 8. Linkage module; 9. Adjustment module; 11. Support; 31. Air passage hole; 32. Separator; 33. Adjustment groove; 41. Negative pressure roller; 42. Sealing component; 51. Air pipe; 52. Negative pressure pipe; 61. Sliding component; 62. Sensing wheel; 71. Scraping component; 72. Auxiliary component; 73. Extruder. 74. Pressure block; 85. Replenishment mechanism; 86. Lever; 87. Rotating shaft; 88. Transmission component; 89. Secondary transmission component; 90. Adjusting plate; 91. Actuating component; 111. Sliding groove; 411. Negative pressure hole; 421. Arc-shaped section; 422. Auxiliary groove; 711. Liquid collection chamber; 712. Overflow port; 713. Replenishment hole; 741. Floating frame; 745. Trigger; 746. Fixed pulley; 747. Traction cable; 911. Adjustment hole. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0032] This application discloses a production equipment for impregnated paper used in high-end board covering materials. The equipment dynamically scrapes and repairs the impregnation liquid on the surface of the impregnated paper and applies negative pressure adsorption to ensure sufficient impregnation.

[0033] Reference Figure 1 , Figure 2 As shown, a production device for impregnating paper for high-end board facing materials includes an impregnation tank 1 with a support 11 mounted on top; a guide roller 2, rotatably disposed in the impregnation tank 1, for guiding the impregnating paper; an air suction cylinder 3, fixedly disposed on the support 11; a negative pressure module 4, disposed on the support 11 and cooperating with the air suction cylinder 3, for using negative pressure to adsorb the impregnating paper to ensure impregnation effect; and an air suction pump 5, disposed on the outer periphery of the impregnation tank 1 and connected to the air suction cylinder 3 via an air pipe 51, for supplying the impregnating paper with the necessary air pressure. The air suction cylinder 3 provides negative pressure; the sensing module 6, which is mounted on the support 11, is used to sense changes in the thickness of the impregnated paper; the scraping module 7, which is mounted on the support 11, is used to scrape and repair the impregnating liquid on the surface of the impregnated paper; the linkage module 8, which is mounted on the support 11, is used to transmit the displacement generated by the sensing module 6 to the scraping module 7; and the adjustment module 9, which is mounted in the air suction cylinder 3, is used to adjust the suction force according to the thickness of the impregnated paper. The adjustment module 9 is connected to the linkage module 8.

[0034] In actual operation, the impregnated paper enters the impregnation tank 1 and is continuously conveyed under the guidance of the guide roller 2. Simultaneously, the air suction pump 5 transmits air through the air pipe 51, working with the air suction cylinder 3 and the negative pressure module 4 to generate negative pressure to adsorb the paper and promote impregnation. If the paper thickness remains constant, the sensing module 6 does not detect any thickness difference and remains in its original position, the linkage module 8 remains stationary, the scraping module 7 maintains a standard position to scrape off excess liquid, and the adjustment module 9 maintains a standard air suction force. When the thickness of the impregnated paper changes, the sensing module 6 is triggered to generate displacement, which is transmitted to the linkage module 8. The linkage module 8 then drives the scraping module 7 to scrape and repair the paper surface, while simultaneously driving the adjustment module 9 to adaptively adjust the air suction force, thereby achieving precise control and uniform impregnation of impregnated paper of different thicknesses. This application uses negative pressure adsorption to force the impregnating liquid to penetrate into the paper, ensuring that impregnated paper of different thicknesses is thoroughly impregnated.

[0035] Reference Figure 3 , Figure 4 As shown, air passage holes 31 are evenly opened on the outer periphery of the air suction cylinder 3. A separator 32 is also installed on the outer periphery of the air suction cylinder 3. The separator 32 surrounds the air passage holes 31, thereby restricting the direction of the negative pressure generated in the air passage holes 31 and ensuring the stability of the negative pressure direction.

[0036] Reference Figure 3 , Figure 4As shown, the negative pressure module 4 includes a negative pressure roller 41, which is coaxially sleeved on the outer periphery of the air suction cylinder 3 and rotates with the air suction cylinder 3. Negative pressure holes 411 are evenly opened on the outer periphery of the negative pressure roller 41. A sealing element 42 is installed on the bracket 11. The lower end of the sealing element 42 is provided with an arc-shaped segment 421. The arc-shaped segment 421 corresponds to the position of the air passage 31, that is, the arc-shaped segment 421 corresponds to the position where the negative pressure occurs. The arc-shaped segment 421 and the negative pressure roller 41 together form a sealed impregnation space for the negative pressure.

[0037] In actual operation, when the impregnated paper reaches the negative pressure roller 41, it is subjected to negative pressure by the air suction cylinder 3 through the air passage 31 to the negative pressure hole 411 (the negative pressure hole 411 located in the impregnation space). The negative pressure hole 411 adsorbs the impregnated paper under negative pressure, thereby accelerating the complete penetration of the impregnation liquid into the paper.

[0038] Reference Figure 5 As shown, the sensing module 6 includes a slider 61, which is slidably disposed in a sliding groove 111 on the bracket 11. A first spring is connected between the slider 61 and the sliding groove 111, and the first spring plays a reset role. A sensing wheel 62 is rotatably disposed at the end of the slider 61.

[0039] In actual operation, the sensing wheel 62 is in contact with the surface of the moving impregnated paper. When the thickness of the impregnated paper increases, the paper pushes the sensing wheel 62 to move, which in turn drives the slider 61 to slide in the sliding slot 111.

[0040] Reference Figure 5 As shown, the linkage module 8 includes a lever 81, which is disposed inside the sealing member 42 via a rotating shaft 82. The rotating shaft 82 is eccentrically disposed on the lever 81 (i.e., not at the center of the lever 81), making the lever 81 form an unequal arm structure. When the sliding member 61 pushes one end of the lever 81, the force is amplified by the unequal arm lever structure, thereby driving the scraping module 7 connected to the other end of the lever 81 to move. One end of the lever 81 abuts against the end of the sliding member 61. A transmission member 83 is slidably disposed inside the sealing member 42. The upper end of the transmission member 83 abuts against the end of the lever 81, and the lower end of the transmission member 83 abuts against the squeezing block 73. A secondary transmission member 84 is installed at the end of the transmission member 83.

[0041] In actual operation, when the sliding member 61 is moved by force, its end pushes one end of the lever member 81, causing the lever member 81 to rotate around the eccentrically set rotating shaft 82; the other end of the rotating lever member 81 presses down on the upper end of the transmission member 83, driving the transmission member 83 to slide downward; the downward sliding transmission member 83 then pushes the pressing block 73 to drive the scraping module 7 to adjust the scraping gap, and at the same time drives the secondary transmission member 84 to move, thereby triggering the adjustment module 9 to adjust the air suction force.

[0042] Reference Figure 5 As shown, the scraping module 7 includes a scraping component 71, which is slidably disposed in an auxiliary groove 422 opened on the sealing component 42 via an auxiliary component 72. A second spring is connected between the auxiliary component 72 and the auxiliary groove 422, and the second spring plays a reset role; and a squeezing block 73, which is installed at the end of the scraping component 71.

[0043] Reference Figures 8-10 As shown, the scraper 71 has a liquid collection chamber 711 inside. The liquid collection chamber 711 is connected to the air suction pump 5 through the negative pressure pipe 52. The side wall of the liquid collection chamber 711 has an overflow port 712. When the liquid level in the liquid collection chamber 711 rises to the overflow port 712, the excess liquid is discharged into the immersion tank 1 through the overflow port 712. The side of the liquid collection chamber 711 near the negative pressure roller 41 has a replenishment hole 713.

[0044] Reference Figures 8-10 As shown, the replenishment mechanism 74 includes a floating frame 741, which is slidably disposed in the liquid collection chamber 711. A third spring is connected between the floating frame 741 and the liquid collection chamber 711, and the third spring serves as a reset function. The floating frame 741 corresponds to the position of the replenishment hole 713. A trigger 745 is slidably disposed inside the auxiliary component 72. A fourth spring is connected between the trigger 745 and the auxiliary component 72, and the fourth spring serves as a reset function. A fixed pulley 746 is rotatably disposed inside the auxiliary component 72. A traction cable 747 is connected at one end to the floating frame 741, and the other end of the traction cable 747 is connected to the trigger 745 via the fixed pulley 746.

[0045] In actual operation, the scraper 71 scrapes the paper. The air pump 5 generates negative pressure (low pressure) in the liquid collection chamber 711 through the negative pressure pipe 52, drawing the scraped excess liquid into the liquid collection chamber 711. When the paper becomes thicker, the sensing module 6 triggers the linkage module 8, and the transmission component 83 pushes the squeezing block 73, causing the scraper 71 to slide to increase the scraping gap and accommodate the passage of thick paper. At the same time, the movement of the scraper 71 causes the trigger 745 to be squeezed between the trigger 745 and the auxiliary groove 422, and the fixed pulley 746... Under the action of the traction cable 747, the floating frame 741 is pulled upward, thereby opening the replenishment hole 713. At this time, the principle of liquid surface barrier is used for adjustment: if the liquid layer on the surface of the thick paper is thin, the liquid in the liquid collection chamber 711 will fall through the replenishment hole 713 to form a uniform liquid layer on the surface of the thick paper for replenishment; if the thickness of the liquid layer on the surface of the thick paper is normal, the surface liquid will block the replenishment hole 713 or form a pressure balance to prevent the liquid from flowing out, thereby realizing replenishment on demand and ensuring sufficient liquid during subsequent negative pressure adsorption impregnation.

[0046] Reference Figure 6 , Figure 7 As shown, the adjustment module 9 includes an adjustment plate 91, which is rotatably disposed in an adjustment groove 33 inside the air suction cylinder 3. A fifth spring is connected between the adjustment plate 91 and the adjustment groove 33, and the fifth spring plays a reset role. An adjustment hole 911 is provided on the adjustment plate 91. A toggle member 92 is installed on the outside of the adjustment plate 91, and the toggle member 92 abuts against the secondary transmission member 84.

[0047] Reference Figure 6 As shown, the adjustment hole 911 corresponds one-to-one with the air passage hole 31.

[0048] In actual operation, the secondary transmission component 84 moves with the transmission component 83, pushing the actuating component 92 to move. The actuating component 92 drives the adjusting plate 91 to rotate in the adjusting groove 33. The rotation of the adjusting plate 91 changes the overlap between the adjusting hole 911 and the air passage 31, thereby changing the cross-sectional area of ​​the airflow channel and adjusting the negative pressure in the air suction cylinder 3 to adapt to the different requirements of the adsorption force due to changes in paper thickness.

[0049] The implementation principle of this embodiment is as follows:

[0050] Step 1: Negative pressure impregnation: The impregnated paper is conveyed by the guide roller 2, and the air suction pump 5 generates negative pressure through the air suction cylinder 3 and the negative pressure roller 41, which, together with the sealing component 42, forcibly adsorbs the paper to accelerate impregnation.

[0051] Step 2: Thickness sensing: The sensing wheel 62 contacts the paper, and the change in thickness pushes the slider 61 to move within the sliding slot 111;

[0052] Step 3: Scraping adjustment: The displacement is transmitted through the lever 81 and the transmission component 83, which pushes the squeezing block 73 to move the scraping component 71, and automatically adjusts the scraping gap to scrape and fill leaks;

[0053] Step 4: Replenishing liquid as needed: The scraper 71 moves and pulls the floating frame 741 through the trigger 745 and the traction cable 747 to open the replenishment hole 713, and replenishes the impregnation liquid to the paper surface as needed by utilizing the principle of liquid surface barrier.

[0054] Step 5: Negative pressure adjustment: The transmission component 83 drives the secondary transmission component 84 to push the actuating component 92, causing the adjusting plate 91 to rotate and change the overlap between the adjusting hole 911 and the air passage 31, thus adaptively adjusting the negative pressure.

[0055] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A production equipment for impregnating paper for high-end board facing materials, characterized in that, include: The immersion tank is equipped with a support frame on top; A guide roller, which is rotatably disposed in the impregnation tank, is used to guide the impregnated paper during transport; An air suction cylinder is fixedly mounted on the bracket. The negative pressure module, which is mounted on the bracket and works in conjunction with the air suction cylinder, is used to use negative pressure to adsorb the impregnated paper to ensure the impregnation effect; An air suction pump is located on the outer periphery of the immersion tank and is connected to the air suction cylinder through an air pipe, used to provide negative pressure to the air suction cylinder; A sensing module, which is mounted on the support, is used to sense changes in the thickness of the impregnated paper; The scraping module, which is mounted on the bracket, is used to scrape and repair the impregnation liquid on the surface of the impregnated paper. A linkage module, which is mounted on the bracket, is used to transmit the displacement generated by the sensing module to the scraping module; An adjustment module, which is located in the air suction cylinder, is used to adjust the suction force according to the thickness of the impregnated paper. The adjustment module is connected to the linkage module for transmission.

2. The production equipment for impregnated paper for high-end board coating materials according to claim 1, characterized in that, The air suction cylinder has uniformly spaced air passages on its outer periphery, and a separator is also installed on the outer periphery of the air suction cylinder.

3. The production equipment for impregnated paper used as a high-end board coating material according to claim 2, characterized in that, The negative pressure module includes: A negative pressure roller is coaxially sleeved on the outer periphery of the air suction cylinder and rotates with the air suction cylinder. Negative pressure holes are evenly opened on the outer periphery of the negative pressure roller. A sealing element is mounted on the bracket, and the lower end of the sealing element is provided with an arc-shaped segment, which corresponds to the position of the air passage.

4. The production equipment for impregnated paper for high-end board coating materials according to claim 3, characterized in that, The sensing module includes: A sliding member is slidably disposed in a sliding slot on the bracket, and a first spring is connected between the sliding member and the sliding slot. The induction wheel is rotatably mounted at the end of the slider.

5. The production equipment for impregnated paper for high-end board facing materials according to claim 4, characterized in that, The scraping module includes: The scraping component is slidably disposed in an auxiliary groove opened on the sealing component via an auxiliary component, and a second spring is connected between the auxiliary component and the auxiliary groove; A squeezing block, which is installed at the end of the scraper; The supplementary mechanism is located within the scraping component.

6. The production equipment for impregnated paper for high-end board facing materials according to claim 5, characterized in that, The scraper has a liquid collection chamber inside, which is connected to the air suction pump through a negative pressure pipe. The side wall of the liquid collection chamber has an overflow port, and the side of the liquid collection chamber near the negative pressure roller has a replenishment hole.

7. The production equipment for impregnated paper for high-end board facing materials according to claim 6, characterized in that, The supplementary mechanism includes: A floating frame is slidably disposed in the liquid collection chamber, and a third spring is connected between the floating frame and the liquid collection chamber. The floating frame corresponds to the position of the replenishment hole. The trigger element is slidably disposed inside the auxiliary element, and a fourth spring connects the trigger element and the auxiliary element; A fixed pulley, the rotation of which is located inside the auxiliary component; The traction cable has one end connected to the floating frame and the other end connected to the trigger via a fixed pulley.

8. The production equipment for impregnated paper for high-end board coating materials according to claim 6, characterized in that, The linkage module includes: A lever component, which is disposed inside the seal via a rotating shaft, has one end abutting against the end of the sliding component; A transmission component is slidably disposed inside the sealing component, with its upper end abutting against the end of the lever component and its lower end abutting against the extrusion block. A secondary transmission component is installed at the end of the transmission component.

9. The production equipment for impregnated paper for high-end board coating materials according to claim 8, characterized in that, The adjustment module includes: An adjusting plate is rotatably disposed in an adjusting groove inside the air suction cylinder. A fifth spring connects the adjusting plate to the adjusting groove. An adjusting hole is provided on the adjusting plate. An actuating element is installed on the outside of the adjusting plate, and the actuating element is in contact with the secondary transmission element.

10. The production equipment for impregnated paper for high-end board facing materials according to claim 9, characterized in that, The regulating hole corresponds one-to-one with the air passage hole.

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