A vacuum dewatering box for a paper machine

Abstract

This invention discloses a vacuum dewatering box for a papermaking machine, comprising a box body, a placement plate, a feeding port, a first vertical plate, and a drive motor. The placement plate is located on top of the box body, and the feeding port is located at the top of the box body. First vertical plates are located on both the front and rear sides of the placement plate. The drive motor is bolted to the rear side of the first vertical plate. A door is hinged to the front side of the box body. The box also includes a first rotating shaft connected to the output end of the drive motor, and a pressure roller is installed on the outer wall of the first rotating shaft. Inside the vacuum dewatering box for the papermaking machine, a first guide plate and a second guide plate are arranged, and a condensing plate is located below the second guide plate. The length of the condensing plate is equal to the width of the box body. This allows the gas to pass through the condensing plate during vacuum extraction, thereby cooling the high temperature in the gas and effectively preventing high-temperature gas from entering the vacuum pump and damaging the components.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of papermaking, in particular to a vacuum dewatering tank for papermaking machine. BACKGROUND

[0002] Paper is common in our production and life, and is widely used. Papermaking machine is used in the production process of paper, and vacuum dewatering is an essential process in the papermaking machine. Generally, a vacuum dewatering tank is used to dewater the paper pulp.

[0003] For example, the publication number CN216159470U discloses a papermaking vacuum dewatering tank, which comprises a box body, the inner wall of the box body is fixedly connected with a supporting plate, the upper end surface of the supporting plate is placed with a placing basket, the bottom of the placing basket is fixedly connected with a plurality of convex columns, a plurality of through holes are formed in the outer surface of the placing basket, two groups of handles are welded on the upper end surface of the placing basket, the two groups of handles are symmetrically arranged, a vacuum pump is installed on one side of the box body, and the inlet of the vacuum pump is detachably connected with a connecting pipe. The papermaking vacuum dewatering tank is provided with a placing basket, and a plurality of convex columns are arranged at the bottom of the placing basket. The placing basket can conveniently store paper. Before dewatering, the placing basket is taken out, the paper is placed in the placing basket, and then the placing basket is placed in the dewatering tank. This greatly facilitates the feeding and discharging of the paper, and the plurality of convex columns can prevent the paper from being attached to the bottom of the placing basket, thereby improving the dewatering efficiency and quality of the vacuum pump. However, the vacuum dewatering tank still has some deficiencies in use, such as the inconvenience of self-feeding of the paper, the manual feeding by the staff, the increase of the workload of the staff, and the reduction of the flexibility of the vacuum dewatering tank in use.

[0004] For example, the publication number CN205329414U discloses a vacuum dewatering tank, which belongs to the field of papermaking equipment and comprises a box body, a water scraping plate is arranged on the upper surface of the box body, a supporting net is arranged on the water scraping plate, paper pulp fibers are laid on the supporting net, a conveying belt is arranged above the paper pulp fibers, the surface of the conveying belt is smooth, the conveying belt is installed on two rotating rollers, the rotating rollers are installed on a bracket, the bracket is matched in a slide way through a slide rod, a vacuum suction port is arranged at the bottom of one side, the bottom surface of the box body is inclined to the direction of the vacuum suction port by 2-3 degrees, a reciprocating partition plate is arranged on the bottom surface of the box body and perpendicular to the direction of the vacuum suction port, a pressure sensor is arranged in the box body, and the pressure sensor is connected with a vacuum suction machine through a control system. This facilitates the discharge of water in the tank, improves the dewatering effect, and saves energy consumption. However, the vacuum dewatering tank still has some deficiencies in use, such as the inconvenience of cooling the high temperature in the gas during vacuumizing, which can cause damage to the internal parts of the vacuum pump and shorten the service life of the vacuum pump, thereby reducing the use effect of the vacuum dewatering tank.

[0005] Therefore, the papermaking machine vacuum dewatering box is provided to solve the above problems. SUMMARY

[0006] The papermaking machine vacuum dewatering box is provided to solve the above problems.

[0007] To achieve the above object, the papermaking machine vacuum dewatering box comprises a box body, a placing plate, a discharging port, a first vertical plate and a driving motor.

[0008] Further comprising:

[0009] A first rotating shaft is connected to the output end of the driving motor, and a compression roller is mounted on the outer wall of the first rotating shaft.

[0010] A second vertical plate is mounted on the rear side of the placing plate, a second rotating shaft is connected to the second vertical plate through a bearing, the second rotating shaft is connected to a first rotating rod through a bevel gear set, and a first connecting gear is mounted on the outer surface of the first rotating rod.

[0011] A second connecting gear is meshed with the first connecting gear, a third connecting gear is meshed with the lower side of the second connecting gear, a reciprocating screw rod is penetrated through the third connecting gear, and a baffle is connected to the outer wall of the reciprocating screw rod.

[0012] A second rotating rod is chain transmission connected between the reciprocating screw rod, a first cam is mounted on the left end of the second rotating rod, and a first guide plate is arranged above the first cam.

[0013] A second guide plate is arranged in the box body, the second rotating rod is connected to a third rotating rod through a transmission belt, and a second cam is mounted on the left end of the third rotating rod.

[0014] A drainage plate is mounted in the box body, and a drain pipe is fixed to the bottom of the box body.

[0015] A vacuum pump is arranged on the left side of the box, the top end of the vacuum pump is connected with a suction pipe, and the left end of the vacuum pump is provided with an exhaust pipe;

[0016] The extrusion rod is arranged above the compression roller.

[0017] Preferably, the placing plate and the box are connected by welding, and the placing plate is inclined, and there is a gap between the placing plate and the compression roller, so that the connection between the placing plate and the box is more firm, and the normal conveying of the pulp is ensured.

[0018] Preferably, the inside of the compression roller is hollow, and the inside of the compression roller is provided with an electric heating wire, and the central axis of the compression roller and the first rotating shaft are located on the same straight line, so that the pulp can be heated and dried when the pulp is dehydrated, and the drying progress of the pulp is accelerated.

[0019] Preferably, the diameters of the first connecting gear, the second connecting gear and the third connecting gear increase in turn, and the second rotating shaft and the first rotating shaft are connected by chain transmission, so that the reciprocating wire rod can be slowed down, and the rotating speed of the reciprocating wire rod is lower than that of the first rotating shaft.

[0020] Preferably, the baffle and the reciprocating wire rod are connected by screw connection, the front and back sides of the baffle are provided with limiting blocks, the limiting blocks and the inner wall of the box are connected by sliding connection, and the connecting end of the limiting block in the box is in the shape of "T", so that the baffle can move left and right when the reciprocating wire rod rotates, the pulp can be discharged automatically, the workload of the workers is reduced, and the baffle can move more stably under the action of the limiting block.

[0021] Preferably, the width of the baffle is greater than the width of the discharge port, and one third of the length of the baffle is equal to the length of the discharge port, so that the purpose of quantitative discharging of the pulp can be achieved, and the vacuum environment in the box can be ensured.

[0022] Preferably, the inside of the box is further provided with a condensing plate, the width of the condensing plate is the same as the width of the box, and there is a gap between the top end of the condensing plate and the second guide plate.

[0023] Preferably, the first guide plate and the second guide plate are both inclined, and the first guide plate and the second guide plate are both connected with the box by rotation, the first guide plate and the first cam are attached to each other, and the second guide plate and the second cam are attached to each other, so that the first guide plate and the second guide plate can swing up and down, effectively preventing the phenomenon of pulp adsorption, and the pulp can be better collected.

[0024] Preferably, the drainage plate is a structure with high middle and low ends, and the lowest end of the drainage plate is connected with the drain pipe, the upper part of the drainage plate is provided with a collecting plate, and the collecting plate and the second cam are spaced apart, so that the water separated from the pulp can be collected, the subsequent processing work of the staff is facilitated, and the hot gas can be cooled under the action of the condensing plate, effectively reducing the damage probability of the vacuum pump.

[0025] Preferably, the front and rear ends of the extrusion rod are connected with the connecting rod, the end of the connecting rod away from the extrusion rod is connected with the mounting plate, the mounting plate and the first vertical plate form a sliding structure through the fixing groove, an elastic spring is arranged between the top end of the mounting plate and the inner wall of the fixing groove, the extrusion rod and the connecting rod are connected through bearings, the connecting rod and the mounting plate are connected through welding, and the length of the extrusion rod is consistent with the length of the compression roller, so that the pulp adsorbed on the compression roller can be extruded again through the extrusion rod, reducing the moisture content of the pulp.

[0026] Compared with the prior art, the beneficial effects of the present application are:

[0027] (1) The vacuum dewatering tank for paper machines, the box body is provided with a discharge port, a baffle is attached below the discharge port, the baffle and the reciprocating screw rod are threadedly connected, the reciprocating screw rod and the first rotating rod are connected through a gear transmission, the first rotating rod is connected with the second rotating shaft through a bevel gear set, and the second rotating shaft and the first rotating shaft are connected through a chain transmission, so that when the first rotating shaft rotates, the reciprocating screw rod can be rotated through the transmission structure, the baffle can move left and right through the reciprocating screw rod, and the pulp can be discharged automatically without manual operation of the staff, reducing the workload of the staff.

[0028] (2) The vacuum dewatering tank for paper machines, the inside of the box body is provided with a first guide plate and a second guide plate, both the first guide plate and the second guide plate are inclined, a condensing plate is arranged below the second guide plate, and the length of the condensing plate is equal to the width of the box body, so that when vacuum is drawn, the gas can be treated through the condensing plate, thereby cooling the high temperature in the gas, effectively preventing high temperature gas from entering the vacuum pump and damaging the parts, and increasing the service life of the vacuum pump. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a whole main section structure schematic diagram of the present application;

[0030] Figure 2 It is a side view structure schematic diagram of the extrusion rod of the present application;

[0031] Figure 3 It is a whole main section structure schematic diagram of the present application Figure 2 It is an enlarged structure schematic diagram of a in the present application;

[0032] Figure 4 Figure 4 is a schematic view of a side cross-sectional structure of a connecting part of the baffle and the limiting block of the present application;

[0033] Figure 5 Figure 5 is a schematic view of a side cross-sectional structure of a connecting part of the first rotating shaft and the compression roller of the present application;

[0034] Figure 6 Figure 6 is a schematic view of a top structure of the second material guiding plate of the present application;

[0035] Figure 7 Figure 7 is a schematic view of a whole front structure of the present application;

[0036] Figure 8 Figure 8 is a schematic view of a front structure of a connecting part of the first rotating shaft and the compression roller of the present application;

[0037] Figure 9 Figure 9 is a schematic view of a front structure of a connecting part of the second rotating shaft and the first cam of the present application;

[0038] Figure 10 Figure 10 is a schematic view of a front structure of a connecting part of the condensing plate and the box of the present application.

[0039] In the figure, 1 is the box, 2 is the placing plate, 3 is the discharging port, 4 is the first vertical plate, 5 is the driving motor, 6 is the first rotating shaft, 7 is the compression roller, 8 is the second vertical plate, 9 is the second rotating shaft, 10 is the bevel gear set, 11 is the first rotating rod, 12 is the first connecting gear, 13 is the second connecting gear, 14 is the third connecting gear, 15 is the reciprocating screw rod, 16 is the baffle, 17 is the limiting block, 18 is the second rotating rod, 19 is the first cam, 20 is the first material guiding plate, 21 is the second material guiding plate, 22 is the third rotating rod, 23 is the second cam, 24 is the condensing plate, 25 is the drainage plate, 26 is the drainage pipe, 27 is the vacuum pump, 28 is the air suction pipe, 29 is the air exhaust pipe, 30 is the extruding rod, 31 is the connecting rod, 32 is the mounting plate, 33 is the fixing groove, 34 is the elastic spring, 35 is the electric heating wire, 36 is the collecting plate, and 37 is the box door. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0041] Please refer to Figures 1-10The application provides a technical scheme: a vacuum dewatering tank for a papermaking machine, which comprises a box body 1, a placing plate 2, a discharging port 3, a first vertical plate 4 and a driving motor 5, the upper portion of the box body 1 is provided with the placing plate 2, the top end of the box body 1 is provided with the discharging port 3, the front and rear sides of the placing plate 2 are both provided with the first vertical plate 4, the rear side of the first vertical plate 4 is fixedly provided with the driving motor 5 through bolts, the front side of the box body 1 is hingedly connected with a tank door 37, the connecting mode of the placing plate 2 and the box body 1 is welding, the placing plate 2 is in an inclined shape, and there is a gap between the placing plate 2 and a compression roller 7,

[0042] Further comprising:

[0043] A first rotating shaft 6 is connected with the output end of the driving motor 5, the outer wall of the first rotating shaft 6 is provided with the compression roller 7, the compression roller 7 is in a hollow shape, the inside of the compression roller 7 is provided with electric heating wires 35, and the central axis of the compression roller 7 and the first rotating shaft 6 are located on the same straight line;

[0044] A second vertical plate 8 is installed at the rear side of the placing plate 2, a second rotating shaft 9 is bearing-connected on the second vertical plate 8, the second rotating shaft 9 is connected with a first rotating rod 11 through a bevel gear set 10, and the outer surface of the first rotating rod 11 is provided with a first connecting gear 12;

[0045] A second connecting gear 13 is meshingly connected with the first connecting gear 12, a third connecting gear 14 is meshingly connected below the second connecting gear 13, a reciprocating lead screw 15 penetrates through the inside of the third connecting gear 14, the outer wall of the reciprocating lead screw 15 is connected with a baffle plate 16, the diameters of the first connecting gear 12, the second connecting gear 13 and the third connecting gear 14 gradually increase, the second rotating shaft 9 and the first rotating shaft 6 are chain transmission-connected, the connecting mode of the baffle plate 16 and the reciprocating lead screw 15 is screw connection, the front and rear sides of the baffle plate 16 are both provided with limiting blocks 17, the limiting blocks 17 and the inner wall of the box body 1 are slidingly connected, the connecting end of the limiting blocks 17 and the inside of the box body 1 is in a T shape, the width of the baffle plate 16 is greater than the width of the discharging port 3, and one third of the length of the baffle plate 16 is equal to the length of the discharging port 3;

[0046] Firstly, the dehydration tank is placed in the corresponding position, and then the driving motor 5 is started, which drives the first rotating shaft 6 to rotate. The outer side of the first rotating shaft 6 is provided with a compression roller 7, and the lower side of the compression roller 7 is provided with an inclined placing plate 2. Therefore, the pulp to be dehydrated can be placed on the placing plate 2. With the rotation of the compression roller 7, the pulp can be extruded, so that the water in the pulp is extruded out. The water flows down along the inclined placing plate 2, which can reduce the phenomenon of water entering the inside of the tank 1. The continuous rotation of the compression roller 7 and the friction between the compression roller 7 and the pulp can make the pulp move towards the direction of the discharge port 3. At the same time, the first rotating shaft 6 drives the second rotating shaft 9 to rotate through the transmission belt. The second rotating shaft 9 drives the first rotating rod 11 to rotate through the bevel gear set 10. The first connecting gear 12 on the outer wall of the first rotating rod 11 is engaged with the second connecting gear 13. The second connecting gear 13 is engaged with the third connecting gear 14 on the outer wall of the reciprocating screw rod 15. The diameters of the first connecting gear 12, the second connecting gear 13 and the third connecting gear 14 gradually increase, so that the rotating speed of the reciprocating screw rod 15 is lower than that of the first rotating rod 11. At the same time, the reciprocating screw rod 15 and the baffle 16 are threadedly connected, so that the baffle 16 moves back and forth when the reciprocating screw rod 15 rotates. When the baffle 16 moves, the limiting blocks 17 on the front and rear sides of the baffle 16 slide along the inner wall of the tank 1, so that the baffle 16 moves more stably.

[0047] When the baffle 16 and the discharge port 3 are staggered, the pulp is discharged. When the baffle 16 and the discharge port 3 are completely coincident, the pulp is not discharged. Moreover, one third of the length of the baffle 16 is equal to the length of the discharge port 3, so that the purpose of quantitative discharge of the pulp can be achieved without manual operation of the staff, reducing the workload of the staff.

[0048] The second rotating rod 18 is connected with the reciprocating screw rod 15 through chain transmission. The first cam 19 is installed on the left end of the second rotating rod 18, and the first guide plate 20 is arranged above the first cam 19.

[0049] The second guide plate 21 is arranged in the inside of the tank 1. The second rotating rod 18 is connected with the third rotating rod 22 through the transmission belt, and the second cam 23 is installed on the left end of the third rotating rod 22.

[0050] The vacuum pump 27 is arranged on the left side of the tank 1. The vacuum pump 27 is connected with the suction pipe 28 at the top end, and the exhaust pipe 29 is installed on the left end of the vacuum pump 27.

[0051] The extrusion rod 30 is arranged above the compression roller 7, the front and rear ends of the extrusion rod 30 are connected with the connecting rod 31, the end of the connecting rod 31 away from the extrusion rod 30 is connected with the mounting plate 32, the mounting plate 32 forms a sliding structure with the first vertical plate 4 through the fixed groove 33, the elastic spring 34 is arranged between the top end of the mounting plate 32 and the inner wall of the fixed groove 33, the extrusion rod 30 and the connecting rod 31 are connected through bearings, the connecting rod 31 and the mounting plate 32 are connected through welding, and the length of the extrusion rod 30 is consistent with the length of the compression roller 7;

[0052] The extrusion rod 30 is arranged above the compression roller 7, the front and rear ends of the extrusion rod 30 are connected with the connecting rod 31, the end of the connecting rod 31 away from the extrusion rod 30 is connected with the mounting plate 32, the mounting plate 32 forms a sliding structure with the first vertical plate 4 through the fixed groove 33, the elastic spring 34 is arranged between the top end of the mounting plate 32 and the inner wall of the fixed groove 33, the extrusion rod 30 and the connecting rod 31 are connected through bearings, the connecting rod 31 and the mounting plate 32 are connected through welding, and the length of the extrusion rod 30 is consistent with the length of the compression roller 7;

[0053] The drainage plate 25 is arranged in the box body 1, the bottom of the box body 1 is fixed with the drain pipe 26, the box body 1 is further provided with the condensation plate 24, the width of the condensation plate 24 is the same as the width of the box body 1, there is a gap between the top end of the condensation plate 24 and the second guide plate 21, the first guide plate 20 and the second guide plate 21 are both inclined, the first guide plate 20 and the second guide plate 21 are both connected with the box body 1 through rotation, the first guide plate 20 and the first cam 19 are attached to each other, the second guide plate 21 and the second cam 23 are attached to each other, the drainage plate 25 has a structure of high in the middle and low at both ends, the lowest end of the drainage plate 25 is connected with the drain pipe 26, the collection plate 36 is arranged above the drainage plate 25, and there is a gap between the collection plate 36 and the second cam 23;

[0054] When the pulp falls from the discharge port 3, it will first fall on the first guide plate 20, and then fall on the second guide plate 21, because the first guide plate 20 and the second guide plate 21 are both inclined, so that the pulp can fall by itself, and finally fall on the collection plate 36, because the left end of the second rotating rod 18 is provided with the first cam 19, and the second rotating rod 18 and the reciprocating wire rod 15 are connected by chain transmission, and the second rotating rod 18 and the third rotating rod 22 are connected by chain transmission, the left end of the third rotating rod 22 is provided with the second cam 23, the second cam 23 and the second guide plate 21 are mutually attached, the first cam 19 and the first guide plate 20 are mutually attached, so that the first guide plate 20 and the second guide plate 21 can swing up and down, which can prevent the pulp from being adsorbed on the first guide plate 20 and the second guide plate 21, so that the pulp can be better collected, and then the vacuum pump 27 is started, the suction pipe 28 on the vacuum pump 27 can perform vacuumizing treatment on the inside of the box body 1, because the inside of the box body 1 is provided with the condensation plate 24, and the condensation plate 24 is located at the right side of the suction pipe 28, so that the high temperature in the gas can be cooled, effectively preventing the high temperature in the gas from entering the vacuum pump 27, reducing the damage probability of the internal parts of the vacuum pump 27, and the drainage plate 25 with two ends high and middle low is arranged at the bottom of the condensation plate 24, so that the condensed water can enter the drain pipe 26 along the drainage plate 25, and finally be discharged outward from the drain pipe 26, facilitating the centralized treatment of the condensed water, and further ensuring the normal use of the dehydration box, thereby completing a series of work.

[0055] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vacuum dewatering tank for papermaking machine, comprising a tank body (1), a placing plate (2), a discharging port (3), a first vertical plate (4) and a driving motor (5), the upper portion of the tank body (1) is provided with the placing plate (2), the top end of the tank body (1) is provided with the discharging port (3), and the front and back sides of the placing plate (2) are provided with the first vertical plate (4), the rear side of the first vertical plate (4) is fixedly provided with the driving motor (5), and the front side of the tank body (1) is hingedly connected with a tank door (37), characterized in that Further comprising: a first rotating shaft (6) connected with the output end of the driving motor (5), and a compression roller (7) mounted on the outer wall of the first rotating shaft (6) ; a second vertical plate (8) mounted on the rear side of the placing plate (2), a second rotating shaft (9) bearing-connected on the second vertical plate (8), the second rotating shaft (9) connected with a bevel gear set (10) and a first rotating rod (11), and a first connecting gear (12) mounted on the outer surface of the first rotating rod (11) ; a second connecting gear (13) meshingly connected with the first connecting gear (12), a third connecting gear (14) meshingly connected below the second connecting gear (13), a reciprocating lead screw (15) penetrating through the third connecting gear (14), and a baffle (16) connected on the outer wall of the reciprocating lead screw (15) ; a second rotating rod (18) chain-transmission-connected between the reciprocating lead screw (15), a first cam (19) mounted on the left end of the second rotating rod (18), and a first guide plate (20) provided above the first cam (19) ; a second guide plate (21) provided inside the tank body (1), the second rotating rod (18) connected with a third rotating rod (22) through a transmission belt, and a second cam (23) mounted on the left end of the third rotating rod (22) ; a drainage plate (25) mounted inside the tank body (1), and a drain pipe (26) fixed on the bottom of the tank body (1) ; a vacuum pump (27) provided on the left side of the tank body (1), the top end of the vacuum pump (27) connected with an air suction pipe (28), and the left end of the vacuum pump (27) mounted with an air exhaust pipe (29) ; a pressing rod (30) provided above the compression roller (7).

2. A vacuum dewatering box for a papermaking machine according to claim 1, characterized in that: The connecting mode of the placing plate (2) and the tank body (1) is welding, the placing plate (2) is inclined, and there is a gap between the placing plate (2) and the compression roller (7).

3. A vacuum dewatering box for a papermaking machine according to claim 1, characterized in that: The compression roller (7) is hollow, the compression roller (7) is provided with an electric heating wire (35) inside, and the central axis of the compression roller (7) and the first rotating shaft (6) are on the same straight line.

4. A vacuum dewatering box for a papermaking machine according to claim 1, characterized in that: The diameters of the first connecting gear (12), the second connecting gear (13) and the third connecting gear (14) increase in turn, and the second rotating shaft (9) and the first rotating shaft (6) are chain-transmission-connected.

5. A vacuum dewatering box for a papermaking machine according to claim 1, characterized in that: The connecting mode of the baffle (16) and the reciprocating wire rod (15) is threaded connection, and the front and rear sides of the baffle (16) are provided with limiting blocks (17), and the limiting blocks (17) and the inner wall of the box body (1) are in sliding connection, and the connecting end of the limiting block (17) and the box body (1) is in "T" shape.

6. A vacuum dewatering box for a papermaking machine according to claim 1, characterized in that: The width of the baffle (16) is greater than the width of the discharging port (3), and one third of the length of the baffle (16) is equal to the length of the discharging port (3).

7. A vacuum dewatering box for a papermaking machine as defined in claim 1, wherein: The inside of the box body (1) is further provided with a condensing plate (24), and the width of the condensing plate (24) is the same as the width of the box body (1), and there is a gap between the top end of the condensing plate (24) and the second guide plate (21).

8. A vacuum dewatering box for a papermaking machine according to claim 1, characterized in that: The first guide plate (20) and the second guide plate (21) are both inclined, and the first guide plate (20) and the second guide plate (21) are both rotatably connected with the box body (1), and the first guide plate (20) and the first cam (19) are mutually attached, and the second guide plate (21) and the second cam (23) are mutually attached.

9. A vacuum dewatering box for a papermaking machine as defined in claim 1, wherein: The drainage plate (25) has a structure of high in the middle and low at both ends, and the lowest end of the drainage plate (25) is communicated with the drain pipe (26), and the upper side of the drainage plate (25) is provided with a collecting plate (36), and there is a gap between the collecting plate (36) and the second cam (23).

10. A vacuum dewatering box for a papermaking machine according to claim 1, characterized in that: The front and rear ends of the extrusion rod (30) are connected with the connecting rod (31), and the end of the connecting rod (31) away from the extrusion rod (30) is connected with the mounting plate (32), and the mounting plate (32) and the first vertical plate (4) form a sliding structure through the fixed groove (33), and a elastic spring (34) is installed between the top end of the mounting plate (32) and the inner wall of the fixed groove (33), the extrusion rod (30) and the connecting rod (31) are connected by bearings, the connecting rod (31) and the mounting plate (32) are connected by welding, and the length of the extrusion rod (30) is consistent with the length of the compression roller (7).

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