Sizing assembly of papermaking system and sizing method of sizing assembly

Abstract

The invention belongs to the technical field of papermaking, and particularly relates to a sizing assembly of a papermaking system and a sizing method of the sizing assembly. Comprising a glue applying roller, a glue containing bin for containing glue is arranged in the glue applying roller, the glue containing bin is connected with a glue applying assembly arranged on the surface of the glue applying roller through a glue supply channel, the glue applying assembly is partially exposed out of the surface of the glue applying roller, the glue in the glue applying assembly can be discharged for glue applying under the pressure of paper, and the glue applying assembly is connected with a glue control assembly. The glue control assembly can adjust the glue flow rate of the glue supply channel according to the temperature change of the surface of the gluing roller; the sizing assembly is arranged on the surface of the sizing roller, the glue control assembly is arranged in the sizing roller, paper can be evenly sized, and when the surface temperature of the sizing roller changes, the flow rate of glue in the glue supply channel can be adjusted, and the sizing quality is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of papermaking, and in particular relates to a gluing component of a papermaking system and a gluing method thereof. Background Art

[0002] Papermaking sizing is an important step in paper production, which aims to improve the performance and characteristics of paper by adding specific chemicals. Sizing agents can form a protective film on the surface of paper to prevent moisture penetration and improve the water resistance of paper. It can also improve the tensile strength and folding resistance of paper, making the paper more durable during use.

[0003] In the prior art, the sizing agent is transferred to the paper for gluing by a sizing roller. The surface temperature of the sizing roller is related to the fluidity and distribution uniformity of the sizing agent. When the surface temperature of the sizing roller is too high, the flow rate of the sizing agent will be accelerated, which may easily cause uneven gluing and directly affect the gluing quality. Summary of the invention

[0004] The purpose of the present invention is to provide a gluing component and a gluing method for a papermaking system in view of the above-mentioned technical problems. A gluing component is arranged on the surface of a gluing roller, and a gluing control component is arranged inside the gluing roller, so that paper can be evenly glued and the flow rate of the glue in the glue supply channel can be controlled when the surface temperature of the gluing roller changes, so as to ensure the gluing quality.

[0005] In view of this, the present invention provides a gluing component of a papermaking system in this embodiment, including a gluing roller, wherein a glue containing chamber for placing glue is arranged inside the gluing roller, the glue containing chamber is connected to the gluing component arranged on the surface of the gluing roller through a glue supply channel, the gluing component is partially exposed from the surface of the gluing roller, and the glue inside can be discharged under the pressure of paper for gluing, the gluing component is connected to a glue control component, and the glue control component can adjust the glue flow rate of the glue supply channel according to the temperature change on the surface of the gluing roller.

[0006] In the above technical scheme, further, the glue application component includes a glue application groove which is circumferentially opened on the surface of the glue application roller and extends along the length direction of the glue application roller, a fixed frame plate is arranged on one side of the surface of the glue application roller in the glue application groove, a glue coating unit is slidably arranged in the fixed frame plate along the radial direction of the glue application roller, a glue stop block is abutted under the glue coating unit, the top of the glue stop block abuts against the fixed frame plate, and the bottom of the glue stop block is elastically connected to the first support plate, the first support plate is fixedly connected to the side wall of the glue application groove, and a flow channel is arranged on the first support plate.

[0007] In this technical solution, the paper presses against the gluing unit, and the gluing unit drives the glue stop block elastically connected to the first support plate at the bottom to move downward, and a channel is formed between the glue stop block and the fixed frame plate for the glue liquid to enter the gluing unit. The glue liquid is discharged from the upper surface of the gluing unit and glue is applied to the paper. When there is no paper on the surface of the glue roller to apply pressure to the gluing unit, the glue liquid inside the glue roller will not continue to flow out, and the glue liquid is fully utilized.

[0008] In the above technical solution, further, the top of the stop glue block is an arc-shaped structure, the bottom of the fixed frame plate is provided with an arc-shaped abutment groove corresponding to the stop glue block, a first sealing rubber ring is provided between the stop glue block and the fixed frame plate, and the first sealing rubber ring is fixedly connected to the abutment groove.

[0009] In the present technical solution, when the gluing unit is not subjected to pressure, the abutment grooves at the top of the glue stop block and the bottom of the fixed frame plate are set in abutment with each other. Through the setting of the first sealing ring, the glue liquid can be prevented from overflowing in the non-gluing state. The glue coating unit is subjected to pressure to drive the glue stop block to move downward, and the top of the glue stop block and the first sealing ring are disengaged from the abutment, and the glue liquid can enter the glue coating unit through the glue stop block.

[0010] In the above technical solution, further, a movable groove with an opening downward is provided at the bottom of the glue stop block, and a limit frame with an opening upward is slidably abutted in the movable groove. The bottom of the limit frame is fixedly connected to the first support plate, and elastic parts are arranged in an array along the length direction in the limit frame. The elastic parts can push the top of the glue stop block to abut against the bottom of the glue coating unit, and the outer wall of the limit frame abuts against the inner wall of the movable groove and is provided with a second sealing rubber ring.

[0011] In this technical solution, the elastic member is a compression spring arranged in an array, and the arrangement of the moving groove, the limit frame and the second sealing rubber ring can prevent the glue liquid from contacting the elastic member and avoid affecting the resetting performance of the elastic member. The arrangement of the moving groove and the limit frame ensures the stability of the movement of the stop block.

[0012] In the above technical scheme, further, the gluing unit includes a gluing block, and slide plates are arranged on both sides of the gluing block. The slide plates can slide in the slide grooves correspondingly arranged on both sides of the fixed frame plate, and glue supply grooves are arranged on the lower parts of both sides of the gluing block. The glue supply grooves are connected to the gluing grooves on the side of the gluing block away from the stop block through glue channels. At least one gluing roller is rotatably arranged in the gluing groove, and the gluing roller is tangent to the gluing side. An arc-shaped abutting side is arranged on the bottom side of the gluing block corresponding to the stop block.

[0013] In the present technical solution, when applying glue, the glue coating unit moves into the glue coating groove, the glue stop block and the first sealing rubber ring are separated to allow the glue liquid to pass through, the glue liquid enters from the glue supply grooves arranged on both sides of the glue coating block, enters the glue coating groove through the glue liquid channel, and glue is applied to the paper by the rotating glue coating roller. The glue liquid can also be coated on the surface of the glue coating roller driven by the glue coating roller and the passing of the paper, thereby ensuring uniform gluing of the paper.

[0014] In the above technical solution, further, the glue control component includes an air storage chamber arranged on the inner side of the surface of the glue roller, a reaction gas is arranged in the air storage chamber, the air storage chamber is connected to the glue supply channel through a ventilation channel, a sealing piece is slidably arranged at the end of the ventilation channel, and a first fixed ring is arranged in the glue supply channel corresponding to the sealing piece, and the reaction gas can push the sealing piece and the first fixed ring to cooperate to limit the flow rate of the glue in the glue supply channel.

[0015] In the present technical solution, the reaction gas is a gas that expands when heated and contracts when cooled. When the surface temperature of the glue roller rises, the reaction gas in the gas storage chamber expands and increases in volume, pushing the sealing member provided at the end of the ventilation channel to move toward the first fixed ring through the ventilation channel. The flow of the glue is restricted by reducing the area of ​​the glue supply channel for the glue to pass through, so as to reduce the amount of glue on the surface of the glue roller, thereby preventing the glue from being unevenly applied due to the increase in temperature and the increased fluidity, which affects the quality of glue application. The external paper transmission mechanism slows down the transmission speed to cooperate and ensure the quality of glue application.

[0016] In the above technical scheme, further, the sealing part includes a sealing rod, and the sealing rod is provided with a sealing ball on one side of the first fixed ring, the sealing ball can abut against the first fixed ring to seal the glue supply channel, and a third sealing rubber ring is provided on the abutting side of the first fixed ring and the sealing ball, the outer ring of the sealing rod is provided with a sliding groove, and an annular slider is slidably arranged in the sliding groove, and a return groove is provided on the upper ring of the sealing rod, and a second fixed ring is fixedly arranged on one side of the first fixed ring in the return groove, and a first spring is arranged in the return groove, the first spring is sleeved on the sealing rod, one end of the first spring is fixedly connected to the sealing rod, and the other end is fixedly connected to the second fixed ring.

[0017] In the above technical solution, further, the glue supply channel is connected to the first fixing ring and is provided with a diversion channel on both sides.

[0018] In the above technical solution, further, the outer surface of the glue roller is a heat-conducting material, which can transfer heat to the air storage chamber.

[0019] Also included is a method for using the sizing component of the papermaking system, comprising the following steps:

[0020] S1: Press the paper against the surface of the glue roller, position the paper to ensure that it can fully contact the glue block, and drive the glue roller through an external drive device to cooperate with the external paper transmission mechanism to perform paper gluing;

[0021] S2: The paper presses against the gluing block, and the gluing block retracts into the gluing groove, driving the bottom glue stop block to move downward, and the glue passes through the flow channel on the first support plate and enters the gluing block for glue supply;

[0022] S3: When the surface temperature of the glue roller is too high, the reaction gas expands thermally and pushes the pressing member to move toward the first fixed ring, thereby limiting the flow rate of the glue in the glue supply channel and slowing down the transmission speed of the glue roller and the external paper transmission mechanism;

[0023] S4: The surface temperature of the glue roller drops or even drops to the normal range, the volume of the reaction gas shrinks, the clamping member recovers and moves away from the first fixed ring, the flow rate of the glue in the glue supply channel is restored, and the transmission speed of the glue roller and the external paper transmission mechanism is restored.

[0024] The beneficial effects of the present invention are:

[0025] 1. A glue application component is arranged on the surface of the glue application roller, and a glue control component is arranged inside the glue application roller, which can evenly apply glue to the paper and control the flow rate of the glue in the glue supply channel when the surface temperature of the glue application roller changes, so as to ensure the gluing quality;

[0026] 2. The paper presses against the gluing unit, and the gluing unit drives the glue stop block at the bottom elastically connected to the first support plate to move downward, and a channel is formed between the glue stop block and the fixed frame plate for the glue liquid to enter the gluing unit. The glue liquid is discharged from the upper surface of the gluing unit and glue is applied to the paper. When there is no paper on the surface of the glue roller to apply pressure to the gluing unit, the glue liquid inside the glue roller will not continue to flow out, and the glue liquid is fully utilized;

[0027] 3. The reaction gas is a gas that expands when heated and contracts when cooled. When the surface temperature of the glue roller rises, the reaction gas in the gas storage chamber expands and increases in volume, and the sealing member provided at the end of the ventilation channel is pushed through the ventilation channel to move toward the first fixed ring. The flow of the glue is restricted by reducing the area of ​​the glue supply channel for the glue to pass through, so as to reduce the amount of glue on the surface of the glue roller, and avoid uneven glue application due to the increase in temperature and enhanced fluidity of the glue, which affects the glue application quality. The external paper transmission mechanism slows down the transmission speed to cooperate and ensure the glue application quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of a partial cross-section of a glue roller;

[0029] Figure 2 It is a schematic diagram of the structure of a partial cross-section of a glue roller;

[0030] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0031] Figure 4 is a front view of the sizing roller portion in section;

[0032] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0033] Figure 6 It is a structural schematic diagram of the glue application unit;

[0034] Figure 7 It is a schematic diagram of the internal structure of the glue application unit;

[0035] Figure 8 yes Figure 2 A partial enlarged view of point C in the middle;

[0036] Fig. 9 It is a structural schematic diagram of the blocking piece.

[0037] The symbols in the figure are:

[0038] 1. Glue roller; 2. Glue storage bin; 3. Glue supply channel; 4. Glue application assembly; 5. Glue control assembly; 7. Glue application groove; 8. Fixed frame plate; 9. Glue application unit; 10. Glue stop block; 11. First support plate; 12. Flow channel; 13. Abutment groove; 14. First sealing rubber ring; 15. Moving groove; 16. Limiting frame; 17. Elastic member; 18. Second sealing rubber ring; 19. Glue application block; 20. Slide plate; 21. Slide groove; 2 2. Glue supply groove; 23. Glue channel; 24. Glue coating groove; 25. Glue coating roller; 26. Glue application side; 27. Abutment side; 28. Air storage chamber; 29. ​​Ventilation channel; 30. Sealing piece; 31. First fixed ring; 32. Sealing rod; 33. Sealing ball; 34. Third sealing rubber ring; 35. Sliding groove; 36. Sliding block; 37. Return groove; 38. Second fixed ring; 39. First spring; 40. Diversion channel. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0040] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0042] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0043] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0044] First embodiment:

[0045] like Figure 1-9 As shown, this embodiment provides a gluing component 4 of a papermaking system, including a gluing roller 1, wherein the gluing roller 1 is provided with a glue storage bin 2 for placing glue liquid, the glue storage bin 2 is connected to the gluing component 4 arranged on the surface of the gluing roller 1 through a glue supply channel 3, the gluing component 4 is partially exposed from the surface of the gluing roller 1, and can discharge the internal glue liquid under the pressure of the paper for gluing, the gluing component 4 is connected to a glue control component 5, and the glue control component 5 can adjust the glue liquid flow rate in the glue supply channel 3 according to the temperature change on the surface of the gluing roller 1.

[0046] like Figure 1-5 As shown, the glue application component 4 includes a glue application groove 7 which is circumferentially opened on the surface of the glue application roller 1 and extends along the length direction of the glue application roller 1, and a fixed frame plate 8 is arranged on one side of the surface of the glue application roller 1 in the glue application groove 7, and a glue coating unit 9 is slidingly arranged in the fixed frame plate 8 along the radial direction of the glue application roller 1, and a glue stop block 10 is abutted below the glue coating unit 9, and the top of the glue stop block 10 abuts against the fixed frame plate 8, and the bottom of the glue stop block 10 is elastically connected to the first support plate 11, the first support plate 11 is fixedly connected to the side wall of the glue application groove 7, and a flow channel 12 is arranged on the first support plate 11.

[0047] The paper presses against the gluing unit 9, and the gluing unit 9 drives the glue stop block 10 elastically connected to the first support plate 11 at the bottom to move downward, and a channel is formed between the glue stop block 10 and the fixed frame plate 8 for the glue liquid to enter the gluing unit 9, and the glue liquid is discharged from the upper surface of the gluing unit 9 and glue is applied to the paper. When there is no paper on the surface of the glue roller 1 to apply pressure to the gluing unit 9, the glue liquid inside the glue roller 1 will not continue to flow out, and the glue liquid is fully utilized.

[0048] like Figure 3and Figure 5 As shown, the top of the stop glue block 10 is an arc-shaped structure, and the bottom of the fixed frame plate 8 is provided with an arc-shaped abutment groove 13 corresponding to the stop glue block 10, and a first sealing rubber ring 14 is provided between the stop glue block 10 and the fixed frame plate 8, and the first sealing rubber ring 14 and the abutment groove 13 are fixedly connected.

[0049] When the gluing unit 9 is not subjected to pressure, the top of the glue stop block 10 and the abutment groove 13 at the bottom of the fixed frame plate 8 are abutted. Through the setting of the first sealing ring, the glue liquid can be prevented from overflowing in the non-gluing state. The glue coating unit 9 is subjected to pressure to drive the glue stop block 10 to move downward, and the top of the glue stop block 10 and the first sealing ring are disengaged, and the glue liquid can enter the glue coating unit 9 through the glue stop block 10.

[0050] like Figure 3 and Figure 5 As shown, a movable groove 15 with an opening downward is provided at the bottom of the glue stop block 10, and a limit frame 16 with an opening upward is slidably abutted in the movable groove 15. The bottom of the limit frame 16 is fixedly connected to the first support plate 11, and elastic members 17 are arranged in an array along the length direction in the limit frame 16. The elastic members 17 can push the top of the glue stop block 10 to abut against the bottom of the glue coating unit 9, and the outer wall of the limit frame 16 abuts against the inner wall of the movable groove 15 and is provided with a second sealing rubber ring 18.

[0051] The elastic member 17 is a compression spring arranged in an array, and the arrangement of the moving groove 15, the limiting frame 16 and the second sealing rubber ring 18 can prevent the glue from contacting the elastic member 17 and affecting the resetting performance of the elastic member 17. The arrangement of the moving groove 15 and the limiting frame 16 ensures the stability of the movement of the stop block 10.

[0052] like Figure 5 and Figure 6 As shown, the gluing unit 9 includes a gluing block 19, and slide plates 20 are arranged on both sides of the gluing block 19. The slide plates 20 can slide in the slide grooves 21 correspondingly arranged on both sides of the fixed frame plate 8, and glue supply grooves 22 are arranged at the lower part of both sides of the gluing block 19. The glue supply grooves 22 are connected to the gluing grooves 24 on the side of the gluing block 19 away from the glue stop block 10 through the glue channel 23. At least one gluing roller 25 is rotatably arranged in the gluing groove 24, and the gluing roller 25 is tangent to the gluing side 26. The bottom side of the gluing block 19 is provided with an arc-shaped abutting side 27 corresponding to the glue stop block 10.

[0053] When applying glue, the glue coating unit 9 moves into the glue coating groove 7, the glue stop block 10 and the first sealing rubber ring 14 are separated to allow glue to pass through, the glue enters from the glue supply groove 22 arranged on both sides of the glue coating block 19, passes through the glue channel 23 and enters the glue coating groove 24, and glue is applied to the paper by the rotating glue coating roller 25. The glue can also be coated on the surface of the glue coating roller 1 driven by the glue coating roller 1 and the passage of paper, thereby ensuring uniform gluing of the paper.

[0054] like Figure 4 , Figure 8 and Fig. 9 As shown, the glue control component 5 includes an air storage chamber 28 arranged on the inner side of the surface of the glue roller 1, and a reaction gas is arranged in the air storage chamber 28. The air storage chamber 28 is connected to the glue supply channel 3 through a ventilation channel 29. A sealing member 30 is slidably arranged at the end of the ventilation channel 29, and a first fixed ring 31 is arranged in the glue supply channel 3 corresponding to the sealing member 30. The reaction gas can push the sealing member 30 and the first fixed ring 31 to cooperate to limit the flow rate of the glue in the glue supply channel 3.

[0055] The reaction gas is a gas that expands when heated and contracts when cooled. When the surface temperature of the glue roller 1 rises, the reaction gas in the gas storage chamber 28 expands and increases in volume, and pushes the sealing member 30 set at the end of the ventilation channel 29 to move toward the first fixed ring 31 through the ventilation channel 29. The flow of the glue is restricted by reducing the area of ​​the glue supply channel 3 for the glue to pass through, so as to reduce the amount of glue on the surface of the glue roller 1, avoid the glue liquid due to the temperature rise and the enhanced fluidity, resulting in uneven glue application, affecting the glue application quality, and the external paper transmission mechanism slows down the transmission speed to cooperate and ensure the glue application quality.

[0056] like Figure 8 and Fig. 9 The shown sealing member 30 includes a sealing rod 32, and a sealing ball 33 is provided on one side of the first fixed ring 31 of the sealing rod 32. The sealing ball 33 can abut against the first fixed ring 31 to seal the glue supply channel 3. A third sealing rubber ring 34 is provided on the abutting side 27 of the first fixed ring 31 and the sealing ball 33. A sliding groove 35 is provided on the outer ring of the sealing rod 32, and an annular slider 36 is slidably provided in the sliding groove 35. A return groove 37 is provided on the upper ring of the sealing rod 32. A second fixed ring 38 is fixedly provided on the return groove 37 on one side of the first fixed ring 31. A first spring 39 is provided in the return groove 37. The first spring 39 is sleeved on the sealing rod 32, and one end of the first spring 39 is fixedly connected to the sealing rod 32, and the other end is fixedly connected to the second fixed ring 38.

[0057] like Figure 8 As shown, the glue supply channel 3 is connected to the first fixing ring 31 and is provided with a diversion channel 40 on both sides.

[0058] The outer surface of the glue roller 1 is made of heat-conducting material, which can transfer heat to the air storage chamber 28 .

[0059] Also included is a sizing method of the sizing component 4 of the papermaking system, comprising the following steps:

[0060] S1: Press the paper against the surface of the glue roller 1, position the paper, ensure that it can fully contact with the glue block 19, and drive the glue roller 1 through an external driving device to cooperate with the external paper transmission mechanism to perform paper gluing;

[0061] S2: The paper presses against the glue coating block 19, and the glue coating block 19 retracts into the glue application groove 7, driving the bottom glue stop block 10 to move downward, and the glue passes through the flow channel 12 on the first support plate 11 and enters the glue coating block 19 for glue supply;

[0062] S3: When the surface temperature of the glue roller 1 is too high, the reaction gas expands thermally and pushes the pressing member to move toward the first fixed sleeve ring 31, thereby limiting the flow rate of the glue in the glue supply channel 3 and slowing down the transmission speed of the glue roller 1 and the external paper transmission mechanism;

[0063] S4: The surface temperature of the glue roller 1 drops or even drops to a normal range, the volume of the reaction gas shrinks, the pressing member recovers and moves away from the first fixed ring 31, the flow rate of the glue in the glue supply channel 3 is restored, and the transmission speed of the glue roller 1 and the external paper transmission mechanism is restored.

[0064] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A glue application assembly (4) of a papermaking system, comprising a glue application roller (1), characterized in that: The glue roller (1) is provided with a glue storage bin (2) for storing glue liquid. The glue storage bin (2) is connected to a glue assembly (4) arranged on the surface of the glue roller (1) through a glue supply channel (3). The glue assembly (4) is partially exposed from the surface of the glue roller (1) and can discharge the glue liquid inside under the pressure of the paper for gluing. The glue assembly (4) is connected to a glue control assembly (5). The glue control assembly (5) can adjust the glue liquid flow rate of the glue supply channel (3) according to the temperature change on the surface of the glue roller (1).

2. The sizing component (4) of the papermaking system according to claim 1, characterized in that: The glue application component (4) comprises a glue application groove (7) which is circumferentially opened on the surface of the glue application roller (1) and extends along the length direction of the glue application roller (1); a fixed frame plate (8) is arranged on one side of the surface of the glue application roller (1) in the glue application groove (7); a glue coating unit (9) is arranged in the fixed frame plate (8) to slide along the radial direction of the glue application roller (1); a glue stop block (10) is abutted below the glue coating unit (9); the top of the glue stop block (10) abuts against the fixed frame plate (8), and the bottom of the glue stop block (10) is elastically connected to a first support plate (11); the first support plate (11) is fixedly connected to the side wall of the glue application groove (7), and a flow channel (12) is arranged on the first support plate (11).

3. The sizing component (4) of the papermaking system according to claim 2, characterized in that: The top of the stop glue block (10) is an arc-shaped structure, and the bottom of the fixed frame plate (8) is provided with an arc-shaped abutment groove (13) corresponding to the stop glue block (10). A first sealing rubber ring (14) is provided between the stop glue block (10) and the fixed frame plate (8), and the first sealing rubber ring (14) and the abutment groove (13) are fixedly connected.

4. The sizing component (4) of the papermaking system according to claim 3, characterized in that: The bottom of the glue-stopping block (10) is provided with a movable groove (15) with an opening facing downward, and a limit frame (16) with an opening facing upward is slidably abutted in the movable groove (15). The bottom of the limit frame (16) is fixedly connected to the first support plate (11), and elastic members (17) are arranged in an array along the length direction in the limit frame (16). The elastic members (17) can push the top of the glue-stopping block (10) to abut against the bottom of the glue-applying unit (9), and the outer wall of the limit frame (16) abuts against the inner wall of the movable groove (15) and is provided with a second sealing rubber ring (18).

5. The sizing component (4) of the papermaking system according to claim 2, characterized in that: The gluing unit (9) comprises a gluing block (19), slide plates (20) are arranged on both sides of the gluing block (19), and the slide plates (20) can slide in slide grooves (21) correspondingly arranged on both sides of the fixed frame plate (8). Glue supply grooves (22) are arranged at the lower parts of both sides of the gluing block (19), and the glue supply grooves (22) are connected to the gluing grooves (24) on the side of the gluing block (19) away from the glue stop block (10) through glue channels (23). At least one gluing roller (25) is rotatably arranged in the gluing groove (24), and the gluing roller (25) is tangent to the gluing side (26). The bottom side of the gluing block (19) is provided with an arc-shaped abutting side (27) corresponding to the glue stop block (10).

6. The sizing component (4) of the papermaking system according to any one of claims 1 to 5, characterized in that: The glue control component (5) comprises an air storage chamber (28) arranged on the inner side of the surface of the glue roller (1), a reaction gas is arranged in the air storage chamber (28), the air storage chamber (28) is connected to the glue supply channel (3) through a ventilation channel (29), a sealing member (30) is slidably arranged at the end of the ventilation channel (29), and a first fixed ring (31) is arranged in the glue supply channel (3) corresponding to the sealing member (30), and the reaction gas can push the sealing member (30) and the first fixed ring (31) to cooperate to limit the flow rate of the glue liquid in the glue supply channel (3).

7. The sizing component (4) of the papermaking system according to claim 6, characterized in that: The blocking member (30) comprises a blocking rod (32), a blocking ball (33) being arranged on one side of the first fixed collar (31) of the blocking rod (32), the blocking ball (33) being able to abut against the first fixed collar (31) to block the glue supply channel (3), a third sealing rubber ring (34) being arranged on the abutting side (27) of the first fixed collar (31) and the blocking ball (33), a sliding groove (35) being arranged on the outer ring of the blocking rod (32), and the sliding groove (35) An annular sliding block (36) is provided for internal sliding, a return groove (37) is provided on the upper ring of the blocking rod (32), a second fixing ring (38) is fixedly provided on one side of the return groove (37) on the first fixing ring (31), a first spring (39) is provided in the return groove (37), the first spring (39) is sleeved on the blocking rod (32), one end of the first spring (39) is fixedly connected to the blocking rod (32), and the other end is fixedly connected to the second fixing ring (38).

8. The sizing component (4) of the papermaking system according to claim 6, characterized in that: The glue supply channel (3) is provided with a diversion channel (40) on both sides thereof in communication with the first fixing ring (31).

9. The sizing component (4) of the papermaking system according to claim 6, characterized in that: The outer surface of the glue roller (1) is made of heat-conducting material, which can transfer heat to the air storage chamber (28).

10. A sizing method based on the sizing component (4) of the papermaking system according to claim 1, characterized in that: The following steps are involved: S1: Pressing the paper against the surface of the glue roller (1), positioning the paper to ensure that it can fully contact the glue coating block (19), and driving the glue roller (1) through an external driving device to cooperate with an external paper transmission mechanism to perform paper gluing; S2: the paper presses against the glue coating block (19), the glue coating block (19) retracts into the glue application groove (7), driving the bottom glue stop block (10) to move downward, and the glue liquid passes through the flow channel (12) on the first support plate (11) and enters the glue coating block (19) for glue supply; S3: When the surface temperature of the glue roller (1) is too high, the reaction gas expands thermally and pushes the pressing member to move toward the first fixed sleeve (31), thereby limiting the flow rate of the glue liquid in the glue supply channel (3) and slowing down the transmission speed of the glue roller (1) and the external paper transmission mechanism; S4: The surface temperature of the glue roller (1) decreases and even drops to a normal range, the volume of the reaction gas shrinks, the pressing member moves back to the side away from the first fixed sleeve (31), the flow rate of the glue in the glue supply channel (3) is restored, and the transmission speed of the glue roller (1) and the external paper transmission mechanism is restored.

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