Nonwoven pulp composite dewatering device

Abstract

The application discloses a non-woven fabric wood pulp composite dehydration device, which comprises a box body provided with a box door on the side, a sieve cylinder rotatably connected in the box body, and side sieve plates fixedly connected to the bottom of the sieve cylinder. The side sieve plates are arranged in a circular array about the axis of the sieve cylinder, and horizontal sliding grooves are formed in the two sides of each side sieve plate. A folding push plate is slidably arranged between two adjacent side sieve plates, and sliding blocks are fixedly connected to the two sides of the folding push plate and slidably arranged in the horizontal sliding grooves. A driving assembly is arranged in the box body and used for synchronously pushing the folding push plate to slide along the radial direction of the sieve cylinder. A driving motor is arranged at the bottom of the box body, and the shaft end of the driving motor is fixedly connected to the sieve cylinder. The application can effectively improve the dehydration efficiency of the wood pulp layer and avoid the folding and wrinkling problems of the wood pulp layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of non-woven fabric production, in particular to a non-woven fabric wood pulp composite dewatering device. BACKGROUND

[0002] Wood pulp spunlace non-woven fabric is developed on the basis of spunlace non-woven fabric, which is produced by adding a layer of wood pulp on the basis of ordinary spunlace fabric production. The product has strong absorption capacity and liquid absorption capacity, and has the properties of dust-free, soft, anti-static, non-damage to the surface of the object, strong and durable, etc., and has wide application.

[0003] The wood pulp layer before wood pulp spunlace non-woven fabric composite contains a high amount of water. The wood pulp layer containing too much water during production is prone to sticking to the net and is not easy to peel off for composite, which will affect the smooth production of the product and cause quality problems such as lack of wood pulp. Therefore, the wood pulp needs to be dewatered before wood pulp spunlace non-woven fabric composite.

[0004] A Chinese patent with publication number CN220633387U discloses a wood pulp spunlace non-woven fabric wood pulp layer dewatering device. When in use, the wood pulp mixture after mixing, washing and carding is sent into the rotating drum, and the rotating rod is driven by the motor to make the driving gear mesh with the driven gear, so that the rotating drum starts to drive the wood pulp mixture to rotate at high speed. The water in the wood pulp mixture is thrown out by the centrifugal force generated by the rotation of the rotating drum, which plays a dewatering role on the wood pulp mixture.

[0005] However, the above-mentioned patent still has the following defects: only relying on centrifugal force to throw out water, the overall dewatering efficiency is low, and the dewatering is not sufficient. Moreover, due to the high-speed rotation of the rotating drum, the dewatered wood pulp layer is prone to folding, winding, wrinkling, etc., and is wrinkled into a ball, which affects the quality of the wood pulp fiber and reduces the production efficiency of the non-woven fabric. SUMMARY

[0006] In order to solve at least one of the technical problems mentioned in the background, the purpose of the present application is to provide a non-woven fabric dewatering device which can effectively improve the dewatering efficiency of the wood pulp layer and avoid the problems of folding, winding and wrinkling of the wood pulp layer, thereby ensuring the quality of the wood pulp fiber.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0008] A non-woven fabric wood pulp composite dewatering device, comprising: a box body provided with a box door on the side face;

[0009] A screen drum is rotationally connected in the box body.

[0010] Side screen plates are fixed to the bottom of the screen cylinder. There are multiple side screen plates, which are arranged in a circumferential array about the axis of the screen cylinder. Horizontal sliding grooves are opened on both sides of each side screen plate. A folding push plate is slidably arranged between two adjacent side screen plates. Slider blocks are fixed to both sides of the folding push plate and are slidably arranged in the horizontal sliding grooves.

[0011] A drive assembly, located inside the housing, is used to synchronously push the folding push plate to slide radially along the screen cylinder.

[0012] A drive motor is installed at the bottom of the housing, and the shaft end of the drive motor is fixedly connected to the screen cylinder.

[0013] Preferably, the driving assembly includes a hollow rod coaxially fixed to the middle of the screen cylinder, a sliding member that slides along the axial direction of the hollow rod, a plurality of connecting rods hinged to the outer periphery of the sliding member, and each connecting rod being hinged to a folding push plate on the side away from the sliding member. The driving assembly also includes a driving source for controlling the vertical sliding of the sliding member.

[0014] Preferably, the hollow rod has a plurality of first vertical sliding grooves on its sidewall; the sliding member includes a sleeve sleeved on the outside of the hollow rod and a connecting post disposed inside the hollow rod, and a plurality of sliding plates are fixedly connected between the connecting post and the sleeve, each of the sliding plates being slidably disposed in a first vertical sliding groove.

[0015] Preferably, the drive source includes a hydraulic telescopic rod, a first compression spring, and a thrust cylindrical roller bearing mounted on the top of the housing. The top of the connecting rod is fixedly connected to the inner ring of the thrust cylindrical roller bearing, and the output end of the hydraulic telescopic rod is fixedly connected to the outer ring of the thrust cylindrical roller bearing. The first compression spring is sleeved on the outside of the hollow rod, with one end of the first compression spring fixedly connected to the bottom of the screen cylinder and the other end fixedly connected to the bottom of the sleeve.

[0016] Preferably, there are multiple connecting rods between each of the folding push plates and the sleeve.

[0017] Preferably, it further includes a reinforcing ring plate fixed inside the screen cylinder, the side screen plate being fixed to the reinforcing ring plate on the side away from the screen cylinder, the reinforcing ring plate having a second vertical groove, and the connecting rod being located inside the second vertical groove.

[0018] Preferably, the screen cylinder includes a bottom plate, a top plate, and a screen ring. The screen ring includes multiple arc-shaped screen plates, each of which is hinged to the bottom plate at one end and detachably connected to the top plate at the other end.

[0019] Preferably, a connecting ring is fixedly connected to the middle of the top plate, and a double-row deep groove ball bearing is installed on the connecting ring. The outer ring of the double-row deep groove ball bearing is fixedly connected to the top of the housing.

[0020] Preferably, the folding push plate includes a left push plate, which has a telescopic groove. A right push plate is slidably connected within the telescopic groove. A second compression spring is installed between the right push plate and the telescopic groove. A connecting plate is horizontally slidably connected to the left push plate on the side away from the screen cylinder. The top plate and the bottom plate both have multiple pushing grooves arranged in a circumferential array. Each pushing groove is located between two adjacent side screen plates. Pushing blocks that are slidably connected to the pushing grooves are fixed to the top and bottom of the connecting plate.

[0021] Preferably, a guide rod is fixedly connected to the side wall of the telescopic slide, the right push plate has a limiting groove that fits the guide rod, and the second compression spring is sleeved on the outside of the guide rod.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] Overall, by driving the screen cylinder at high speed through the drive motor during the dewatering process of wood pulp, centrifugal dewatering can be achieved. At the same time, the drive component drives the folding pusher plate close to the screen cylinder, which ensures that the wood pulp is constantly squeezed by the folding pusher plate, the folding screen cylinder, and the side screen plate. This not only further improves the dewatering effect of the wood pulp, but also prevents the wood pulp fibers from folding, wrinkling, or tangling, thereby ensuring the quality of the wood pulp fibers and improving the production efficiency of nonwoven fabrics to a certain extent. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a cross-sectional schematic diagram of the folding push plate of the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of the overall structure of the present invention;

[0027] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0028] Figure 5 This is a schematic diagram of the internal components of the housing of the present invention;

[0029] Figure 6 This is a schematic diagram of the hollow rod structure in this invention;

[0030] Figure 7 This is a schematic diagram of the internal component structure of the sieve ring of the present invention;

[0031] Figure 8 This is a schematic cross-sectional view of the internal components of the housing of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the sliding component of the present invention;

[0033] In the diagram: 1. Box body; 11. Box door; 2. Screen cylinder; 21. Bottom plate; 22. Top plate; 23. Screen ring; 231. Arc-shaped screen plate; 3. Side screen plate; 31. Horizontal slide groove; 41. Folding push plate; 411. Left push plate; 4111. Telescopic slide groove; 412. Right push plate; 4121. Limiting groove; 413. Second compression spring; 414. Connecting plate; 42. Slider; 51. Hollow rod; 511. First vertical slide groove; 52, sliding component; 521, connecting column; 522, sleeve; 523, sliding plate; 53, connecting rod; 541, hydraulic telescopic rod; 542, thrust cylindrical roller bearing; 543, first compression spring; 6, drive motor; 7, reinforcing ring plate; 71, second vertical slide groove; 8, guide rod; 91, connecting ring; 92, double row deep groove ball bearing; 101, pushing groove; 102, pushing block. Detailed Implementation

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1 - Figure 9 This embodiment provides a nonwoven wood pulp composite dewatering device, including: a box body 1 with a box door 11 installed on the side, a screen cylinder 2 rotatably connected inside the box body 1, a plurality of side screen plates 3 fixedly connected to the bottom of the screen cylinder 2, and the plurality of side screen plates 3 are arranged in a circumferential array about the axis of the screen cylinder 2, and horizontal sliding grooves 31 are provided on both sides of the side screen plates 3; a folding push plate 41 is slidably arranged between two adjacent side screen plates 3, and sliders 42 are fixedly connected to both sides of the folding push plate 41. The sliders 42 are slidably arranged in the horizontal sliding grooves 31. In this way, two adjacent side screen plates 3, the folding push plate 41 and the screen cylinder 2 constitute a placement space for placing the wood pulp to be dewatered; it should be noted that when the folding push plate 41 moves radially along the screen cylinder 2 from a position away from the screen cylinder 2 to a position closer to the screen cylinder 2, the size of the folding push plate 41 increases accordingly. Inside the housing 1, there is also a drive assembly for synchronously pushing all the folding push plates 41 to slide radially along the screen cylinder 2; a drive motor 6 is installed at the bottom of the housing 1, and the shaft end of the drive motor 6 is fixedly connected to the screen cylinder 2, so as to drive the screen cylinder 2 to rotate at high speed.

[0036] The following describes the specific application scenario: When dewatering wood pulp, first open the chamber door 11 and place the wood pulp to be dewatered in the placement area formed by the screen cylinder 2, two adjacent side screen plates 3, and the folding push plate 41. Once all placement areas are filled with wood pulp, simultaneously start the drive assembly and drive motor 6. The drive motor 6 drives the screen cylinder 2 to rotate at high speed, thereby using centrifugal force to remove water from the wood pulp. Activating the drive assembly controls the folding push plate 41 to move closer to the screen cylinder 2, constantly squeezing the wood pulp against the screen cylinder 2 and the folding push plate 41, thus further improving the dewatering effect. Furthermore, although the overall volume of the wood pulp decreases after dewatering, the folding push plate 41, driven by the drive assembly, continuously pushes the side of the wood pulp away from the screen cylinder 2, ensuring it is constantly squeezed by the area formed by the folding push plate 41, screen cylinder 2, and side screen plates 3. This prevents the wood pulp from folding, tangling, or wrinkling, thus guaranteeing the quality of the wood pulp fibers.

[0037] Overall, by driving the screen cylinder 2 at high speed through the drive motor 6 during the dewatering process of wood pulp, centrifugal dewatering can be achieved. At the same time, the drive component drives the folding push plate 41 close to the screen cylinder 2, which ensures that the wood pulp is always squeezed by the folding push plate 41, the folding screen cylinder 2 and the side screen plate 3. This not only further improves the dewatering effect of the wood pulp, but also prevents the wood pulp fibers from folding, wrinkling and tangling, thus ensuring the quality of the wood pulp fibers and improving the production efficiency of nonwoven fabrics to a certain extent.

[0038] Furthermore, refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 As a specific embodiment of this application, the driving assembly includes a hollow rod 51 coaxially fixed to the middle of the screen cylinder 2, a sliding member 52 that slides along the axial direction of the hollow rod 51 is provided on the hollow rod 51, and a plurality of connecting rods 53 are hinged to the outer periphery of the sliding member 52. Each connecting rod 53 is hinged to a folding push plate 41 on the side away from the sliding member 52. The connecting rod 53 is inclined downward from the sliding member 52 to the folding push plate 41. The driving assembly also includes a driving source for controlling the vertical sliding of the sliding member 52.

[0039] Furthermore, refer to Figures 6-9Multiple first vertical grooves 511 are provided on the side wall of the hollow rod 51; the sliding member 52 includes a sleeve 522 sleeved on the outside of the hollow rod 51 and a connecting post 521 disposed inside the hollow rod 51. Multiple sliding plates 523 are fixed between the connecting post 521 and the sleeve 522. Each sliding plate 523 is slidably disposed in a first vertical groove 511. The vertical sliding between the sliding member 52 and the hollow rod 51 is realized by the cooperation of the sliding plate 523 and the first vertical groove 511. The cooperation of multiple first vertical grooves 511 and sliding plates 523 can ensure the connection strength between the sleeve 522 and the connecting post 521, thereby improving the overall strength of the sliding member 52 and improving the limiting stability of the sliding member 52, ensuring that the sliding member 52 can rotate synchronously at high speed with the screen cylinder 2.

[0040] Furthermore, refer to Figure 3 and Figure 4 The driving source includes a hydraulic telescopic rod 541, a first compression spring 543, and a thrust cylindrical roller bearing 542. The hydraulic telescopic rod 541 is installed on the top of the housing 1. The top of the connecting column 521 is fixedly connected to the inner ring of the thrust cylindrical roller bearing 542, and the output end of the hydraulic telescopic rod 541 is fixedly connected to the outer ring of the thrust cylindrical roller bearing 542. The first compression spring 543 is sleeved on the outside of the hollow rod 51, and one end of the first compression spring 543 is fixedly connected to the bottom of the screen cylinder 2, and the other end is fixedly connected to the bottom of the sleeve 522. This ensures that when the first compression spring 543 rotates synchronously with the screen cylinder 2 at high speed and is simultaneously subjected to the pressure of the sliding member 52, the first compression spring 543 will not bend in the radial direction of the hollow rod 51, thus ensuring the stability of the first compression spring 543.

[0041] The following description, using a specific application scenario, further illustrates the process of wood pulp dewatering. By activating the hydraulic telescopic rod 541, the sliding member 52 is controlled to move downwards along the axis of the hollow rod 51. The cooperation of the first vertical groove and the sliding plate 523 ensures that the sliding member 52 does not rotate, thus guaranteeing the smoothness and stability of its downward movement. When the hydraulic telescopic rod 541 extends, the sliding member 52 moves downwards, compressing the first compression spring 543. Simultaneously, the connecting rod 53 gradually changes from an inclined state to a horizontal state, pushing the folding push plate 41 towards the screen cylinder 2. This constantly compresses the wood pulp, ensuring it remains in contact with the side screen plate 3, screen cylinder 2, and folding push plate 41, preventing folding, wrinkling, or tangling of the wood pulp.

[0042] Further explanation is needed: when the screen cylinder 2 rotates at high speed, the side screen plate 3, folding push plate 41, hollow rod 51, sliding member 52, and connecting rod 53 also rotate at high speed along with the screen cylinder 2. However, the hydraulic telescopic rod 541 of the drive source is fixed and does not rotate with it. Here, the thrust cylindrical roller bearing 542 is needed for adjustment so that when the hydraulic telescopic rod 541 extends, it will not affect the overall rotation of the screen cylinder 2, side screen plate 3, and other synchronously rotating components. The reason for choosing the thrust cylindrical roller bearing 542 is that the thrust cylindrical roller bearing 542 has good axial load capacity, ensuring that when the hydraulic telescopic rod 541 applies force to the connecting column 521 (i.e., applies force to the sliding member 52), the sliding member 52 can move down stably.

[0043] In addition, the first compression spring 543 is designed to ensure that when the hydraulic telescopic rod 541 retracts after dehydration, the first compression spring 543 can push the sliding member 52 upward in time, preventing the sliding member 52 from axially moving. This ensures the stability and smoothness of the control of the sliding member 52 and further improves the stability of the dehydration process.

[0044] Reference Figure 3 , Figure 4 , Figure 8 As a specific implementation of this application, there are multiple connecting rods 53 provided between each folding push plate 41 and the sleeve 522, and during installation, the multiple connecting rods 53 connected to each folding push plate 41 should be distributed in a linear array.

[0045] In combination with the specific application scenario, the use of multiple connecting rods 53 is to ensure the stability of the force applied to the folding push plate 41, and to ensure that multiple points can act on the folding push plate 41 simultaneously when the sliding member 52 moves down, thereby ensuring the movement stability of the folding push plate 41 and further ensuring the stability of the wood pulp dewatering process.

[0046] Reference Figure 3 , Figure 4 , Figure 7 and Figure 8 As a specific embodiment of this application, it also includes a reinforcing ring plate 7 fixedly connected to the screen cylinder 2, the side screen plate 3 is fixedly connected to the reinforcing ring plate 7 on the side away from the screen cylinder 2, a second vertical groove 71 is provided in the reinforcing ring plate 7, and the connecting rod 53 is located in the second vertical groove 71.

[0047] In combination with specific application scenarios, by strengthening the ring plate 7, the overall connection stability of the side screen plate 3 and the screen cylinder 2 can be increased, providing more stable support for the dewatering of wood pulp. At the same time, strengthening the second vertical groove 71 on the ring plate 7 can also constrain the connecting rod 53, ensuring that the connecting rod 53 is not prone to shaking when the screen cylinder 2 rotates at high speed, thereby ensuring the stability of the folding push plate 41.

[0048] Reference Figure 5 As a specific embodiment of this application, the screen cylinder 2 includes a bottom plate 21, a top plate 22 and a screen ring 23. The screen ring 23 includes a plurality of arc-shaped screen plates 231. Each arc-shaped screen plate 231 is hinged to the bottom plate 21 at one end and detachably connected to the top plate 22 at the other end. The bottom end of the hollow rod 51 is fixed to the bottom plate 21.

[0049] Depending on the specific application scenario, when performing wood pulp dewatering, first open the chamber door 11, then remove the constraint between the arc-shaped screen plate 231 and the top plate 22, and then open the arc-shaped screen plate 231. Place the wood pulp to be dewatered between the arc-shaped screen plate 231, the side screen plate 3, and the folding push plate 41. Then close the arc-shaped screen plate 231 and fix its top to the top plate 22. This completes the wood pulp loading. Then close the chamber door 11, start the drive motor 6 and the hydraulic telescopic rod 541 to begin the dewatering process. Once the wood pulp dewatering is complete, open the chamber door 11 again and open the arc-shaped screen plate 231, then remove the dewatered wood pulp fibers.

[0050] Reference Figure 3 As a specific embodiment of this application, a connecting ring 91 is fixedly connected to the middle of the top plate 22, and a double row deep groove ball bearing 92 is installed on the connecting ring 91. The outer ring of the double row deep groove ball bearing 92 is fixedly connected to the top of the housing 1.

[0051] Based on the specific application scenario, by fixing the connecting ring 91 in the middle of the top plate 22 and using the double-row deep groove ball bearing 92 to rotate the connecting ring 91 and the box 1, the screen cylinder 2 is constrained at the top, ensuring the coaxiality of the rotation of the screen cylinder 2, avoiding radial deviation caused by long-term high-speed rotation of the screen cylinder 2, and increasing the installation stability of the screen cylinder 2, thereby ensuring the stability of the wood pulp dewatering process.

[0052] Reference Figure 2 , Figure 7 and Figure 8 As a specific embodiment of this application, the folding push plate 41 includes a left push plate 411, which has a telescopic groove 4111. A right push plate 412 is slidably connected in the telescopic groove 4111. A second compression spring 413 is installed between the right push plate 412 and the telescopic groove 4111. A connecting plate 414 is horizontally slidably connected to the side of the left push plate 411 away from the screen cylinder 2. Multiple pushing grooves 101 are arranged in a circumferential array on the top plate 22 and bottom plate 21 of the screen cylinder 2. Each pair of adjacent side screen plates 3 are symmetrically distributed about a pushing groove 101. Pushing blocks 102 that are slidably connected to the pushing grooves 101 are fixedly connected to the top and bottom of the connecting plate 414.

[0053] In specific usage scenarios, when the connecting rod 53 pushes the folding push plate 41 to move closer to the screen cylinder 2, the overall size of the folding push plate 41 increases. Since there may be installation gaps between the slider 42 and the horizontal slide groove 31, if the folding push plate 41 is extended by the cooperation of the slider 42 and the horizontal slide groove 31 alone, there may be a shaking problem during the size change of the folding push plate 41. At this time, under the elastic force of the second compression spring 413, the left push plate 411 and the right push plate 412 are kept in close contact with the side screen plate 3 at all times, which improves the tightness of the connection between the side screen plate 3 and the folding push plate 41. This ensures that the folding push plate 41 can stably squeeze the wood pulp away from the screen cylinder 2 at all times, further improving the stability of wood pulp dewatering.

[0054] Furthermore, the design of the connecting plate 414 is to ensure that the connecting rod will not circumferentially deviate relative to the screen cylinder 2, the hollow rod 51, and the sleeve 522. When the hydraulic telescopic rod 541 pushes the sliding member 52 downward, since the connecting rod will not move vertically, the connecting rod will gradually tend to a horizontal state after the sliding member 52 moves downward. This process, with the cooperation of the pushing groove 101 and the pushing block 102, will push the connecting plate 414 along the pushing groove 101 closer to the screen cylinder 2, and then push the left push plate and the right push plate closer to the screen cylinder 2.

[0055] Reference Figure 2 As a specific embodiment of this application, a guide rod 8 is fixedly connected to the side wall of the telescopic slide 4111, and a limiting groove 4121 that fits the guide rod 8 is provided on the right push plate 412. The second compression spring 413 is looped around the outside of the guide rod 8.

[0056] In specific usage scenarios, the guide rod 8 and the limiting groove 4121 can limit the movement of the left push plate 411 and the right push plate 412 when they are unfolded or folded, thereby ensuring the smoothness and stability of the folding push plate 41 when it is folded or extended. In addition, since the second compression spring 413 is looped around the outside of the guide rod 8, the extension or compression of the second compression spring 413 can also be guided, ensuring that the use of the second compression spring 413 is more stable, and further improving the stability of the folding push plate 41.

[0057] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A nonwoven pulp composite dewatering device, characterized in that Include: The box (1) is provided with a box door (11) on the side; The screen cylinder (2) is rotatably connected in the box (1); The side screen plate (3) is fixedly connected to the bottom of the screen cylinder (2), and a plurality of side screen plates (3) are arranged in a circular array about the axis of the screen cylinder (2), and horizontal sliding grooves (31) are formed on both sides of the side screen plate (3); A folding push plate (41) is slidably arranged between two adjacent side screen plates (3), and a sliding block (42) is fixedly connected to both sides of the folding push plate (41), and the sliding block (42) is slidably arranged in the horizontal sliding groove (31); The drive assembly is arranged in the box (1), and the drive assembly is used for synchronously pushing the folding push plate (41) to slide along the screen cylinder (2); The drive motor (6) is installed at the bottom of the box (1), and the shaft end of the drive motor (6) is fixedly connected with the screen cylinder (2); The drive assembly includes a hollow rod (51) coaxially fixed in the middle of the screen cylinder (2), the hollow rod (51) is provided with a sliding member (52) sliding along the axis of the hollow rod (51), the sliding member (52) is hingedly connected with a plurality of connecting rods (53) on the outer periphery, each connecting rod (53) is hingedly connected with a folding push plate (41) on the side away from the sliding member (52), and the drive assembly further includes a drive source for controlling the vertical sliding of the sliding member (52); The screen cylinder (2) includes a bottom plate (21), a top plate (22) and a screen ring (23), the screen ring (23) includes a plurality of arc-shaped screen plates (231), each arc-shaped screen plate (231) is hingedly connected with the bottom plate (21) at one end and detachably connected with the top plate (22) at the other end; The folding push plate (41) includes a left push plate (411), the left push plate (411) is provided with a telescopic sliding groove (4111), a right push plate (412) is slidably connected in the telescopic sliding groove (4111), and a second compression spring (413) is arranged between the right push plate (412) and the telescopic sliding groove (4111); The left push plate (411) is slidably connected with a connecting plate (414) on the side away from the screen cylinder, and the top plate (22) and the bottom plate (21) are both provided with a plurality of push moving grooves (101) in a circular array, each push moving groove (101) is located between two adjacent side screen plates (3), and the top and bottom of the connecting plate (414) are fixedly connected with push moving blocks (102) slidably connected with the push moving grooves (101).

2. A nonwoven pulp composite dewatering device according to claim 1, characterized in that The side wall of the hollow rod (51) is provided with a plurality of first vertical sliding grooves; The sliding member (52) includes a sleeve (522) sleeved outside the hollow rod (51) and a connecting column (521) arranged in the hollow rod (51), a plurality of sliding plates (523) are fixedly connected between the connecting column (521) and the sleeve (522), and each sliding plate (523) is slidably arranged in a first vertical sliding groove (511).

3. A nonwoven pulp composite dewatering device according to claim 1, characterized in that The driving source comprises a hydraulic telescopic rod (541) and a first compression spring (543) and a thrust cylindrical roller bearing (542) installed on the top of the box (1), the top of the connecting column (521) is fixedly connected with the inner ring of the thrust cylindrical roller bearing (542), and the output end of the hydraulic telescopic rod (541) is fixedly connected with the outer ring of the thrust cylindrical roller bearing (542); the first compression spring (543) is sleeved outside the hollow rod (51), one end of the first compression spring (543) is fixedly connected with the bottom of the sieve cylinder (2), and the other end is fixedly connected with the bottom of the sleeve (522).

4. A nonwoven pulp composite dewatering device according to claim 1, characterized in that A plurality of connecting rods (53) are arranged between each of the folding push plates (41) and the sleeve (522).

5. A nonwoven pulp composite dewatering device according to claim 3, characterized in that A reinforcing ring plate (7) fixedly connected in the sieve cylinder (2) is further included, the side sieve plate (3) is fixedly connected to the reinforcing ring plate (7) away from the sieve cylinder (2), the reinforcing ring plate (7) is provided with a second vertical sliding groove (71), and the connecting rod (53) is located in the second vertical sliding groove (71).

6. A nonwoven pulp composite dewatering device according to claim 1, characterized in that The top plate (22) is fixedly connected with a connecting ring (91) in the middle, a double-row deep groove ball bearing (92) is installed on the connecting ring (91), and the outer ring of the double-row deep groove ball bearing (92) is fixedly connected with the top of the box (1).

7. A nonwoven pulp composite dewatering device according to claim 1, characterized in that The side wall of the telescopic sliding groove (4111) is fixedly connected with a guide rod (8), the right push plate (412) is provided with a limiting groove (4121) matched with the guide rod (8), and the second compression spring (413) is sleeved outside the guide rod (8).

Images