Water-resistant ink file washing deacidification reinforcing machine

Abstract

The utility model relates to a kind of water-resistant writing archives washing deacidification reinforcing machine, the water-resistant writing archives washing deacidification reinforcing machine, including rack, water-washing liquid tank and liquid collecting tank are sequentially arranged in succession from front to back on rack, water-washing liquid tank is the arc-shaped groove of radian setting along front-back direction, lower supporting mesh belt is arranged along its groove type on the upper portion of arc-shaped groove and liquid collecting tank, upper pressing mesh belt is arranged on the upper portion of lower supporting mesh belt corresponding to the middle position of water-washing liquid tank, to form transmission gap between lower supporting mesh belt, upper pressing mesh belt and lower supporting mesh belt are driven by upper drive component and lower drive component respectively, to when water-washing tank is loaded with deacidification liquid, upper pressing mesh belt can be matched with lower supporting mesh belt to transport paper immersed in deacidification liquid to rear through transmission gap, drying component is arranged on the upper portion of lower supporting mesh belt corresponding to the position of liquid collecting tank, to can dry the paper transported from front to carry out drying treatment.The water-resistant writing archives washing deacidification reinforcing machine has the advantages of continuous, uniform paper deacidification reinforcement, and paper is not easy to be damaged.

Description

Technical Field

[0001] This utility model relates to the field of paper deacidification, and in particular to a water-resistant paper handwriting archive washing deacidification and reinforcement machine. Background Technology

[0002] Paper acidification has become a global problem, and paper deacidification technology is being researched worldwide. Paper deacidification includes deacidification of whole documents and deacidification of individual sheets. Deacidification of individual sheets includes deacidification of water-resistant documents and deacidification of non-water-resistant documents. Different deacidification solutions and equipment are required for different types of documents.

[0003] Currently, for water-resistant paper, continuous deacidification equipment using a spray system is commonly used. This equipment primarily utilizes a conveyor belt and spray components mounted above it to complete the paper deacidification process. While this method can strengthen the paper to some extent, it suffers from uneven processing. To overcome this drawback, various regions have begun to consider deacidification equipment using a full immersion method. However, full immersion treatment needs to overcome the following limitations: First, full immersion softens the paper, making it easy to tear if not handled properly; second, the paper is difficult to fix while immersed in the deacidification solution, making continuous processing challenging. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a water-resistant paper washing and deacidification strengthening machine, which has the advantages of continuous and uniform deacidification and strengthening of paper, and is not easy to damage the paper.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A water-resistant paper washing and deacidification strengthening machine includes a frame. A washing liquid tank and a collection tank are connected sequentially from front to back on the frame. The washing liquid tank is an arc-shaped tank arranged along the front-to-back direction. A lower support mesh belt is arranged along the shape of the arc-shaped tank and the collection tank above the tank. An upper pressure mesh belt is positioned above the lower support mesh belt at the middle position of the washing liquid tank, forming a conveying gap with the lower support mesh belt. The upper pressure mesh belt and the lower support mesh belt are driven collaboratively by an upper drive assembly and a lower drive assembly, respectively. When the washing liquid tank is filled with deacidification liquid, the upper pressure mesh belt, in cooperation with the lower support mesh belt, conveys the paper immersed in the deacidification liquid backward through the conveying gap. A drying component is also provided above the lower support mesh belt at the position corresponding to the collection tank, to dry the paper conveyed from the front.

[0007] In one example, the upper pressure conveyor belt is connected to an upper fixed frame, and the two sides of the upper fixed frame are respectively positioned on the frame by two sets of first height adjusters so that the conveying gap can be adjusted by the first height adjusters.

[0008] The lower support mesh belt is connected to the front half of the washing liquid tank via a lower fixed frame. The rear end of the lower fixed frame is hinged to the frame via a rotating shaft. The front ends of the lower fixed frame are mounted on the frame via a second height adjuster, so that the conveying gap can be adjusted via the second height adjuster.

[0009] In one example, the first height adjuster includes a first adjusting plate fixed to the outside of the upper fixed frame. The first adjusting plate is sleeved on a first screw, and the lower end of the first screw is fixed to the frame. The first screw is threaded with a first limiting member above and below the first adjusting plate. The first limiting member can be a nut. The position of the upper fixed frame can be adjusted by adjusting the nut, thereby realizing the adjustment of the conveying gap. When adjusting the conveying gap, the main purpose is to ensure that the conveying gap is consistent in the vertical conveying direction and is in a horizontal position to avoid the paper deviating to one side during the conveying process. Of course, the overall height of the conveying gap can also be adjusted as needed.

[0010] In one example, the second height adjuster includes a second adjusting plate fixed to the outside of the lower fixed frame, with a second screw threadedly connected to the second adjusting plate. The lower end of the second screw abuts against the frame. By turning the second screw, the height of the front end of the upper fixed frame can be changed, thereby achieving adjustment of the conveyor gap.

[0011] The simultaneous adjustment of the upper pressure conveyor belt and the lower support conveyor belt provides greater flexibility and helps to adjust the conveyor gap to a horizontal position for better and smoother paper conveying backward.

[0012] In one example, both the upper pressure mesh belt and the lower support mesh belt are made of Z-shaped stainless steel mesh belts. The upper pressure mesh belt is connected to an upper fixed frame, which includes two side fixed plates. A drive shaft and multiple fixed shafts are connected between the two side fixed plates to support the upper pressure mesh belt. A drive gear that meshes with the upper pressure mesh belt is fixedly connected to the drive shaft. A driven gear that meshes with the upper pressure mesh belt is rotatably connected to the fixed shaft. Among the multiple fixed shafts, one of the fixed shafts located at the upper corner is designated as the tensioning shaft. An adjustment hole is provided on the side fixed plate for the tensioning shaft to pass through. Both ends of the tensioning shaft are connected to the side fixed plate through tensioners to adjust the position of the tensioning shaft in the adjustment hole.

[0013] The tensioner can be specifically structured as follows: it includes a first adjusting plate and a first positioning plate. The tensioning shaft is fixedly connected to the first adjusting plate, and the first positioning plate is fixedly connected to the side fixing plate. An adjusting rod is connected between the first adjusting plate and the first positioning plate, and an adjusting nut is connected to the adjusting rod to adjust the position of the tensioning shaft in the adjusting hole.

[0014] Similarly, the lower support belt is also supported by a drive shaft and multiple fixed shafts. A drive gear is fixed to the drive shaft, and driven gears are rotatably connected to the fixed shafts. The lower fixed frame consists of two side fixed plates and multiple fixed shafts connecting them. Additionally, a tensioner can be installed on the lower fixed frame as needed to adjust the set tensioning shaft, thereby achieving tension adjustment of the lower support belt. The tension adjustment method and tensioner for the lower support belt are the same as those for the upper support belt.

[0015] In one example, several anti-collapse components are respectively provided below the upper mesh belts of the upper pressure mesh belt and the lower support mesh belt. Each anti-collapse component includes multiple vertically connected support shafts and multiple support rods. The support shafts are arranged vertically to the transmission direction, and the support rods are fixed to the top of the support shafts, with the ends of the support rods pressed down to avoid affecting the mesh belt transmission.

[0016] In one example, the drying component includes a drying rack with multiple heating tubes, which may be infrared heating tubes. The drying rack is positioned on the frame on both sides by two sets of third height adjusters to adjust the height of the heating tubes.

[0017] Regarding the third height adjuster, it specifically includes a third screw fixed on the frame, a second positioning plate fixed to the drying rack is sleeved on the third screw, and second limiting members are threaded to the upper and lower parts of the third screw and the second positioning plate, respectively. The second limiting members can be nuts, and the height of the heating tube on the drying component can be adjusted by adjusting the nuts.

[0018] In one example, the collection tank is made of aluminum foil or has aluminum foil inside, similar to an insulated takeout bag. This design allows heat to rise upwards, drying the deacidified and hardened paper more quickly. A return pipe connects the collection tank to the washing liquid tank, enabling the collected residual liquid to be returned to the washing liquid tank for recycling.

[0019] In one example, the frame is enclosed on both sides, and the top of the frame is provided with a cover to cover the upper pressure conveyor belt and the drying components. This arrangement is both aesthetically pleasing and conducive to drying.

[0020] In one example, the upper drive assembly can be directly a motor connected to the drive shaft. However, to make the structure more compact, the following structure can also be used: The drive component specifically includes a motor, and a chain and gear structure connects the motor to the upper pressure belt. That is, the motor power is transmitted to the drive shaft through the chain and two gears. A mounting base is provided at the bottom of the motor, and a fourth height adjuster is provided between the mounting base and the frame. The fourth height adjuster allows the motor and the chain and gear structure to be adjusted vertically to ensure that the chain is always taut. The fourth height adjuster consists of a fourth screw fixed to the frame and two nuts thereon, and the mounting base is connected to the fourth screw between the two nuts.

[0021] In one example, the side of the frame is equipped with an inlet pipe and an outlet pipe communicating with the washing liquid tank. The inlet pipe is connected to a hydraulic pump and a replenishment source via a pipeline. The end of the outlet pipe is connected to a level pipe at the top and a drain pipe at the bottom. The drain pipe is equipped with a valve, and the level pipe is equipped with a level sensor to replenish the washing liquid tank in a timely manner when the liquid level is insufficient. If necessary, an overflow pipe and an overflow valve communicating with the washing liquid tank can also be installed on the side of the frame to drain the liquid when the level is too high.

[0022] In one example, the bottom of the frame is equipped with casters, which are Foma casters with leveling function.

[0023] In one example, the frame is also provided with a discharge plate at the conveying end of the lower support conveyor belt, and the paper conveyed from the lower support conveyor belt can be conveyed to the discharge plate.

[0024] The advantages of this utility model using the above structure are:

[0025] 1. This water-resistant paper washing and deacidification machine, through the cooperation of an upper pressure conveyor belt and a specially designed lower support conveyor belt, can effectively immerse the paper in the deacidification solution and continuously convey it for deacidification and strengthening, resulting in more uniform and thorough deacidification and high deacidification efficiency. The drying unit, in conjunction with the lower support conveyor belt, allows for rapid drying. The entire process is fast and efficient, with high-quality deacidification and strengthening.

[0026] 2. This water-resistant paper washing and deacidification reinforcement machine features an adjustable upper pressure mesh belt and lower support mesh belt, which allows for adjustable conveying gaps, ensuring that the paper can be smoothly conveyed backward without deviation or jamming.

[0027] 3. This water-resistant paper washing and deacidification reinforcement machine features a tensioner that allows for tension adjustment when the conveyor belt loosens due to use or adjustment, ensuring stable paper deacidification conveying. In particular, the anti-collapse component further enhances the stability of the conveyor belt.

[0028] 4. This water-resistant handwriting document washing and deacidification reinforcement machine can be adjusted to a suitable drying distance by adjusting the up and down of the drying components; with the aluminum foil setting, heat can be effectively used to quickly dry the paper.

[0029] 5. This water-resistant paper deacidification and reinforcement machine, with its structure including an inlet pipe, outlet pipe, level pipe, and drain pipe, can replenish liquid as needed, facilitating intelligent paper deacidification and reinforcement. Attached Figure Description

[0030] Figure 1 This is a side view of the internal structure of one embodiment of the present invention;

[0031] Figure 2 for Figure 1 A simplified top view of the structure after removing the protective cover;

[0032] Figure 3 for Figure 1 Enlarged structural diagram of section A in the middle;

[0033] Figure 4 for Figure 1 Enlarged front view of the structure in which the upper and middle fixed brackets mate with the machine frame;

[0034] Figure 5 for Figure 1 Enlarged front view of the structure in which the lower and middle fixed frame mates with the machine frame;

[0035] Figure 6 for Figure 1 Enlarged structural diagram of section B.

[0036] In the diagram, 1. Frame, 2. Washing liquid tank, 3. Collection tank, 4. Lower support conveyor belt, 5. Upper pressure conveyor belt, 6. Conveying gap, 7. Upper drive assembly, 8. Lower drive assembly, 9. Drying component, 10. Upper fixed frame, 11. First high / low regulator, 12. Lower fixed frame, 13. Rotating shaft, 14. Second high / low regulator, 15. Tensioner, 16. Anti-collapse component, 17. Third high / low regulator, 18. Protective cover, 19. Fourth high / low regulator, 20. Discharge pipe, 21. Liquid level pipe, 22. Drain pipe, 23. Valve, 24. Casters.

[0037] 1001, Side fixing plate; 1002, Drive shaft; 1003, Fixed shaft; 1004, Drive gear; 1005, Driven gear; 1006, Tensioning shaft; 1007, Adjusting hole; 1101, First adjusting plate; 1102, First screw; 1103, First limiting member; 1201, Second adjusting plate; 1202, Second screw; 1501, Third adjusting plate; 1502, First positioning plate; 1503, Adjusting rod; 1504, Adjusting nut. Detailed Implementation

[0038] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0039] like Figure 1-6 As shown in this embodiment, the water-resistant handwriting document washing and deacidification strengthening machine includes a frame 1. The frame 1 is provided with a washing liquid tank 2 and a collection tank 3 connected from front to back. The washing liquid tank 2 is an arc-shaped tank with an arcuate setting along the front-back direction. A lower support mesh belt 4 is provided above the arc-shaped tank and the collection tank 3, arranged along its tank shape. An upper pressure mesh belt 5 is provided above the lower support mesh belt 4 at the middle position of the washing liquid tank 2, so as to form a conveying gap 6 between the upper pressure mesh belt 5 and the lower support mesh belt 4. The upper pressure mesh belt 5 and the lower support mesh belt 4 are driven by an upper drive component 7 and a lower drive component 8, respectively, so that when the washing liquid tank 5 is filled with deacidification liquid, the upper pressure mesh belt 5 can cooperate with the lower support mesh belt 4 to convey the paper immersed in the deacidification liquid backward through the conveying gap. A drying component 9 is also provided above the lower support mesh belt 4 at the position corresponding to the collection tank 6, so as to dry the paper conveyed from the front.

[0040] Working Principle: First, deacidifying solution is added to the washing liquid tank 2 until it reaches a certain height above the conveyor gap 6. Simultaneously, the lower support conveyor belt 4, the upper pressure conveyor belt 5, and the drying unit 9 are activated. Second, paper is placed into the washing liquid tank 2 from the front of the conveyor gap 6. With the cooperation of the upper pressure conveyor belt 5 and the lower support conveyor belt 4, the paper is conveyed backward through the conveyor gap 6. During this process, due to the buoyancy of the liquid, the paper adheres to the upper pressure conveyor belt 5. The function of the upper pressure conveyor belt 5 is to press the paper into the deacidifying solution for deacidification and reinforcement treatment, and to convey it backward. After passing through the conveyor gap 6, the paper continues to be conveyed backward away from the deacidifying solution under the action of the lower support conveyor belt 4. When the paper reaches below the drying unit 9, the liquid collection tank 3 can be used to collect residual liquid. The drying unit 9 then dries the paper, thus completing the paper deacidification and reinforcement process. The entire process is not only highly efficient but also of high quality, specifically exhibiting good processing uniformity and minimizing paper damage.

[0041] In one embodiment, the conveying gap may be affected by factors such as unevenness during processing, transportation, use, or placement. For example, the spacing between the left and right conveying gaps 6 may be inconsistent due to transportation, or the conveying gap 6 may be shifted to one side (not in a horizontal position) due to uneven placement. These situations can cause the paper to shift to one side during transport, potentially leading to problems such as the paper getting stuck or torn. To minimize paper shifting, the following structural design can be implemented:

[0042] like Figure 1 , 3 As shown in Figure 4, the upper pressure conveyor belt 5 is connected to an upper fixed frame 10. The two sides of the upper fixed frame 10 are respectively positioned on the frame 1 by two sets of first height adjusters 11, so that the conveying gap 6 can be adjusted by the first height adjusters 10. Specifically, the overall vertical spacing of the conveying gap can be adjusted by adjusting both sides at the same time; the conveying gap can be adjusted to one side to be adjusted to a horizontal position by adjusting one side; the vertical spacing of the conveying gap can be adjusted to be inconsistent along the left and right directions by adjusting one side.

[0043] like Figure 1 and 5 As shown, the lower support conveyor belt 4 is connected to the front half of the washing liquid tank 2 via a lower fixed frame 12. The rear end of the lower fixed frame 12 is hinged to the frame 1 via a pivot 13. The front ends of the lower fixed frame 12 are mounted on the frame 1 via a second height adjuster 14, allowing the conveying gap 6 to be adjusted. The lower support conveyor belt is mainly used in conjunction with the upper pressure conveyor belt for unilateral adjustment. The simultaneous adjustment of the upper pressure conveyor belt 5 and the lower support conveyor belt 4 provides greater flexibility and helps adjust the conveying gap 6 to a horizontal position, thus better conveying the paper backward.

[0044] Regarding the first high / low regulator 11, the following structure can be adopted: Figure 3-4 As shown, it includes a first adjusting plate 1101 fixed to the outside of the upper fixed frame 10. The first adjusting plate 1101 is sleeved on the first screw 1102. The lower end of the first screw 1102 is fixed to the frame 1. The first screw 1102 is threaded to the upper and lower ends of the first adjusting plate 1101 respectively. The first limiting member 1103 can be a nut. The position of the upper fixed frame 10 can be adjusted by adjusting the nut, thereby realizing the adjustment of the conveying gap 6.

[0045] Regarding the second high / low regulator 14, the following structure can be adopted: Figure 4As shown, it includes a second adjusting plate 1201 fixed to the outside of the lower fixed frame 12. A second screw 1202 is threaded onto the second adjusting plate 1201, and the lower end of the second screw 1202 abuts against the frame 1. By turning the second screw 1202, the height of the front end of the upper fixed frame 12 can be changed, thereby realizing the adjustment of the conveying gap 6.

[0046] In one embodiment, the conveyor belt may loosen as the machine is used, which may affect the stability of paper delivery. To solve this problem, the following structural configuration is made:

[0047] like Figure 3-4 As shown, both the upper pressure mesh belt 5 and the lower support mesh belt 4 are made of Z-shaped stainless steel mesh belts. The upper fixed frame 10 includes two side fixed plates 1001. A drive shaft 1002 and multiple fixed shafts 1003 are connected between the two side fixed plates 1001 to support the upper pressure mesh belt 5. A drive gear 1004 that meshes with the upper pressure mesh belt 4 is fixedly connected to the drive shaft 1002. A driven gear 1005 that meshes with the upper pressure mesh belt 5 is rotatably connected to the fixed shaft 1003. Among the multiple fixed shafts 1003, one of the fixed shafts 1003 located at the upper corner is set as a tensioning shaft 1006. An adjustment hole 1007 is opened on the side fixed plate 1001 for the tensioning shaft 1006 to pass through. The two ends of the tensioning shaft 1006 are respectively connected to the side fixed plate 1001 through a tensioner 15 so that the position of the tensioning shaft 1006 in the adjustment hole can be adjusted.

[0048] Regarding the tensioner 15, the following structure can be adopted: (e.g.) Figure 3 As shown, it includes a third adjusting plate 1501 and a first positioning plate 1502. The tensioning shaft 1006 is fixedly connected to the third adjusting plate 1501, and the first positioning plate 1502 is fixedly connected to the side fixing plate 1001. An adjusting rod 1503 is connected between the third adjusting plate 1501 and the first positioning plate 1502. An adjusting nut 1504 is connected to the adjusting rod 1503 to adjust the position of the tensioning shaft in the adjusting hole 1007.

[0049] Similarly, the lower support belt 4 is also supported by a drive shaft and multiple fixed shafts. A drive gear is fixed to the drive shaft, and a driven gear is rotatably connected to each of the fixed shafts. The lower fixed frame consists of two side fixed plates and multiple fixed shafts connecting them. Additionally, a tensioner can be installed on the lower fixed frame as needed to adjust the tensioning shaft, thereby achieving tension adjustment of the lower support belt. The tension adjustment method and tensioner for the lower support belt are the same as those for the upper support belt.

[0050] In one embodiment, to better tighten the mesh belts, several anti-collapse components 16 are respectively provided below the upper mesh belts of the upper pressure mesh belt 5 and the lower support mesh belt 4, such as... Figure 6As shown, each anti-collapse component 16 includes multiple vertically connected support shafts 1601 and multiple support rods 1602. The support shafts 1601 are arranged vertically to the conveying direction, and the support rods 1602 are fixed to the top of the support shafts 1601. The ends of the support rods 1602 are pressed down to avoid affecting the conveyor belt.

[0051] In one embodiment, the drying component 9 includes a drying rack with multiple heating tubes, specifically infrared heating tubes. The drying rack is positioned on the frame on both sides by two sets of third height adjusters 17 to adjust the height of the heating tubes.

[0052] Regarding the third height adjuster 17, its structure is the same as that of the first height adjuster. Specifically, it may include a third screw fixed on the frame. A second positioning plate fixed to the drying rack is sleeved on the third screw. The third screw is threaded with a second limiting member above and below the second positioning plate. The second limiting member can be a nut. The height of the heating tube on the drying component can be adjusted by adjusting the nut.

[0053] In one embodiment, the collection tank 3 is made of aluminum foil or has aluminum foil inside, similar to the inside of a takeout insulated bag. This arrangement allows heat to rise upwards, drying the deacidified and reinforced paper more quickly. A return pipe is also connected between the collection tank 3 and the washing liquid tank 2 to return the collected residual liquid to the washing liquid tank for recycling.

[0054] In one embodiment, the frame 1 is enclosed on both sides, and the top of the frame 1 is provided with a protective cover 18 that covers the upper pressure conveyor belt and the drying components. This arrangement is both aesthetically pleasing and facilitates drying. The top of the inner part of the protective cover for the drying components can also be configured as a V-shaped top. During drying, when the evaporated liquid condenses on the top of the protective cover, it can slide down along both sides of the inner top into the liquid collection tank.

[0055] In one embodiment, the upper drive assembly can be directly a motor connected to the drive shaft. However, to make the structure more compact, the following structure can also be adopted: The upper drive assembly 7 specifically includes a motor, and a chain and gear structure connects the motor and the upper pressure belt 5. That is, the motor power is transmitted to the drive shaft through the chain and two gears. A mounting base is provided at the bottom of the motor, and a fourth height adjuster 19 is provided between the mounting base and the frame 1. The fourth height adjuster 19 can be used to adjust the height of the motor and the chain and gear structure to ensure that the chain is always taut. The fourth height adjuster 19 consists of a fourth screw fixed to the frame 1 and two nuts thereon. The mounting base is connected to the fourth screw between the two nuts.

[0056] The structure of the lower driver component is the same as that of the upper driver component.

[0057] In one embodiment, such as Figure 4 As shown, the side of the frame 1 is also provided with an inlet pipe and an outlet pipe 20 that communicate with the washing liquid tank 3. The inlet pipe is connected to a hydraulic pump and a replenishment source through a pipeline. The end of the outlet pipe 20 is connected to a level pipe 21 at the top and a drain pipe 22 at the bottom. A valve 23 is provided on the drain pipe 22, and a level sensor is provided in the level pipe 21 to form an automatic replenishment device to replenish the liquid in the washing liquid tank 2 in a timely manner when the liquid is insufficient. If necessary, an overflow pipe and an overflow valve communicating with the washing liquid tank can also be provided on the side of the frame to drain the liquid when the liquid level is too high.

[0058] In one embodiment, the bottom of the frame 1 is provided with casters 24, which are Foma casters with leveling function.

[0059] In one embodiment, a discharge plate is also provided on the frame 1 at the conveying end of the lower support conveyor belt, and the paper conveyed from the lower support conveyor belt can be transferred to the discharge plate. It should be noted that the discharge plate is not shown in the figure, but in actual application, it can be connected to the rear end of the frame as needed.

[0060] The specific embodiments described above should not be construed as limiting the scope of protection of this utility model. Any alternative improvements or modifications made to the embodiments of this utility model by those skilled in the art will fall within the scope of protection of this utility model. Any aspects not detailed in this utility model are well-known to those skilled in the art.

Claims

1. A water-resistant handwriting document washing and deacidification strengthening machine, characterized in that, The machine includes a frame on which a washing liquid tank and a collection tank are connected sequentially from front to back. The washing liquid tank is an arc-shaped tank with an arcuate shape along the front-to-back direction. A lower support mesh belt is arranged along the shape of the arcuate tank and the collection tank above the tank. An upper pressure mesh belt is located above the lower support mesh belt at the middle position of the washing liquid tank to form a conveying gap with the lower support mesh belt. The upper pressure mesh belt and the lower support mesh belt are driven in cooperation by an upper drive component and a lower drive component, respectively. When the washing liquid tank is filled with deacidifying liquid, the upper pressure mesh belt can cooperate with the lower support mesh belt to convey the paper immersed in the deacidifying liquid backward through the conveying gap. A drying component is also located above the lower support mesh belt at the position corresponding to the collection tank to dry the paper conveyed from the front.

2. The water-resistant handwriting archive washing and deacidification strengthening machine according to claim 1, characterized in that, The upper pressure mesh belt is connected to an upper fixed frame. The two sides of the upper fixed frame are respectively positioned on the frame by two sets of first height adjusters so that the conveying gap can be adjusted by the first height adjusters. The lower support mesh belt is connected to the front half of the washing liquid tank via a lower fixed frame. The rear end of the lower fixed frame is hinged to the frame via a rotating shaft. The front ends of the lower fixed frame are mounted on the frame via a second height adjuster, so that the conveying gap can be adjusted via the second height adjuster.

3. The water-resistant handwriting archive washing and deacidification strengthening machine according to claim 1 or 2, characterized in that, Both the upper pressure mesh belt and the lower support mesh belt are made of Z-shaped stainless steel mesh belts; The upper pressure conveyor belt is connected to an upper fixed frame. The upper fixed frame includes two side fixed plates, and a drive shaft and multiple fixed shafts are connected between the two side fixed plates to support the upper pressure conveyor belt. A drive gear that meshes with the upper pressure conveyor belt is fixedly connected to the drive shaft. A driven gear that meshes with the upper pressure conveyor belt is rotatably connected to the fixed shaft. Among the multiple fixed shafts, one of the fixed shafts located at the upper corner is designated as the tensioning shaft. An adjustment hole is provided on the side fixed plate for the tensioning shaft to pass through. Both ends of the tensioning shaft are connected to the side fixed plate through tensioners to adjust the position of the tensioning shaft in the adjustment hole.

4. The water-resistant handwriting archive washing and deacidification strengthening machine according to claim 1, characterized in that, Several anti-collapse components are respectively provided below the upper mesh belt of the upper pressure mesh belt and the lower support mesh belt. Each anti-collapse component includes multiple vertically connected support shafts and multiple support rods. The support shafts are arranged vertically to the transmission direction, and the support rods are fixed to the top of the support shafts, with the ends of the support rods pressed down.

5. The water-resistant handwriting archive washing and deacidification strengthening machine according to claim 1, characterized in that, The drying component includes a drying rack with multiple heating tubes. The drying rack is positioned on the frame on both sides by two sets of third height adjusters to adjust the height of the heating tubes.

6. The water-resistant handwriting archive washing and deacidification strengthening machine according to claim 1 or 5, characterized in that, The liquid collection tank is made of aluminum foil or has aluminum foil inside the tank, and a return pipe is connected between the liquid collection tank and the washing liquid tank.

7. The water-resistant handwriting archive washing and deacidification strengthening machine according to claim 1 or 5, characterized in that, The frame is enclosed on both sides, and the top of the frame is provided with a cover to cover the upper pressure conveyor belt and the drying components.

8. The water-resistant handwriting archive washing and deacidification strengthening machine according to claim 7, characterized in that, The upper drive assembly includes a motor, and a chain gear structure connects the motor to the upper pressure belt. A mounting base is provided at the bottom of the motor, and a fourth height adjuster is provided between the mounting base and the frame.

9. The water-resistant handwriting archive washing and deacidification strengthening machine according to claim 1, characterized in that, The side of the frame is provided with an inlet pipe and an outlet pipe that are connected to the washing liquid tank. The inlet pipe is connected to a hydraulic pump and a replenishment source through a pipeline. The end of the outlet pipe is connected to a liquid level pipe at the top and a drain pipe at the bottom. The drain pipe is equipped with a valve, and the liquid level pipe is equipped with a liquid level sensor.

10. The water-resistant handwriting archive washing and deacidification strengthening machine according to claim 1, characterized in that, The bottom of the frame is equipped with casters, which are Foma casters.

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