Dehydration device of single-cylinder double-net paper machine

Abstract

The utility model relates to the technical field of papermaking dewatering, in particular to a dewatering device of a single-cylinder double-net papermaking machine, which is convenient for adjusting the distance between dewatering rollers and improving the drying quality and efficiency. Comprising a dehydration mechanism; the device further comprises an adjusting mechanism, a driving auxiliary mechanism, a driving mechanism, an auxiliary drying mechanism and a drying mechanism, the dewatering mechanism is installed on the adjusting mechanism, the driving auxiliary mechanism is installed on the adjusting mechanism, the driving mechanism is installed on the dewatering mechanism, the auxiliary drying mechanism is installed on the adjusting mechanism, and the drying mechanism is installed on the drying mechanism. The distance between the dewatering mechanisms is adjusted through the adjusting mechanism, the dewatering mechanisms are driven by the driving mechanism to conduct extrusion dewatering on the paper web, the driving mechanism is adjusted through the driving auxiliary mechanism, the drying mechanism is assisted in supporting the paper web machine, and the drying mechanism dries the paper web.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking dehydration, in particular to a dehydration device of a single-cylinder double-wire papermaking machine. Background Art

[0002] With the continuous development of papermaking technology, single-cylinder double-wire papermaking machines have also been continuously improved and perfected. Single-cylinder double-wire papermaking machines are widely used in the production of various types of paper, such as cultural paper, packaging paper, and toilet paper. Their high efficiency, energy saving, and environmental protection make them highly competitive in the market.

[0003] In the existing dewatering technology of the single-cylinder double-wire papermaking machine, for example, the existing technology with application number CN201721344421.1, it includes a flow conveying device, a forming and dewatering device, a drying device, a paper winding mechanism, an impeller and a transmission pipe, etc. The diameter of the transmission pipe decreases successively from the air inlet to the air outlet, effectively compressing the internal airflow, so that the flow rate of the airflow increases instantly when it runs out of the air outlet, thereby improving the effect of removing dust in the air near the paper.

[0004] However, the prior art has low dewatering quality for paper webs and is not convenient for adjusting the spacing between dewatering rollers, which reduces its practicality. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a dewatering device for a single-cylinder double-wire papermaking machine, which is convenient for adjusting the spacing between dewatering rollers and improves the quality and efficiency of drying.

[0006] The utility model discloses a dewatering device for a single-cylinder double-wire papermaking machine, comprising a dewatering mechanism; further comprising an adjusting mechanism, a driving auxiliary mechanism, a driving mechanism, an auxiliary drying mechanism and a drying mechanism, wherein the dewatering mechanism is installed on the adjusting mechanism, the driving auxiliary mechanism is installed on the adjusting mechanism, the driving mechanism is installed on the dewatering mechanism, the auxiliary drying mechanism is installed on the adjusting mechanism, and the drying mechanism is installed on the drying mechanism. The adjusting mechanism adjusts the spacing of the dewatering mechanism, the driving mechanism drives the dewatering mechanism to squeeze and dewater the paper web, the driving auxiliary mechanism adjusts the driving mechanism, the auxiliary drying mechanism supports the paper web machine, and the drying mechanism dries the paper web; the spacing of the dewatering mechanism is adjusted by the adjusting mechanism to improve practicality, the dewatering mechanism is driven by the driving mechanism to squeeze and dewater the paper web, the driving auxiliary mechanism adjusts the driving mechanism to ensure that the driving mechanism stably drives the dewatering mechanism to squeeze and dewater the paper web under different spacings of the dewatering mechanism, thereby improving practicality, the auxiliary drying mechanism supports the paper web machine, prolongs the drying and dehydration time of the paper web, and thus improves the dehydration quality of the paper web, and the drying mechanism dries the paper web.

[0007] Preferably, the adjustment mechanism includes a base plate, two base frames, multiple guide rods, two adjustment seats, two first lead screws and two adjustment motors. The two base frames are installed on the top surface of the base plate, the guide rods are installed on the two base frames, the adjustment seat is slidably installed on the guide rods, the first lead screw is rotatably installed in the base plate and the base frame, the adjustment seat is threadedly matched with the first lead screw, the two adjustment motors are installed at the bottom end of the base plate, the output ends of the two adjustment motors are connected to the two first lead screws, and the two adjustment motors move synchronously; when the spacing of the dehydration mechanism needs to be adjusted, the two air distribution boxes are opened to work synchronously, thereby driving the first lead screw to rotate, and the two adjustment seats are driven to slide synchronously on the guide rods through the threaded relationship, thereby adjusting the spacing of the dehydration mechanism.

[0008] Preferably, the dewatering mechanism includes a first dewatering roller and a second dewatering roller, the first dewatering roller is rotatably mounted on two base frames via a first rotating shaft, and the second dewatering roller is rotatably mounted on an adjusting seat via a second rotating shaft, and the first dewatering roller and the second dewatering roller are the same size; the first dewatering roller and the second dewatering roller are driven to rotate by opening the driving mechanism, and then the paper web is squeezed and dewatered by the first dewatering roller and the second dewatering roller.

[0009] Preferably, the drive auxiliary mechanism includes an adjusting box, a second lead screw, a slider and an auxiliary rotating shaft. The adjusting box is installed on the base frame, one end of the second lead screw is rotatably installed on the inner wall of the adjusting box, the second lead screw is rotatably installed on the adjusting box, the slider is slidably installed in the adjusting box, the slider is threadedly engaged with the second lead screw, and the auxiliary rotating shaft is rotatably installed on the slider; when the adjusting motor is turned on to adjust the distance between the first dehydration roller and the second dehydration roller, by rotating the second lead screw, the slider is driven to slide in the adjusting box due to the thread relationship, and then the position of the auxiliary rotating shaft is adjusted, so that the driving mechanism can be stably transmitted and driven.

[0010] Preferably, the driving mechanism includes three pulleys, a transmission belt, a driving motor and a steering shaft, the steering shaft is rotatably mounted on an adjusting seat, a first gear and a second gear that mesh with each other are provided in the adjusting seat, the steering shaft is connected to the first gear, the second gear is connected to the first shaft of the first dewatering roller, the three pulleys are respectively mounted on the steering shaft, the second shaft of the second dewatering roller and the auxiliary shaft, the transmission belt connects the three pulleys, the driving motor is mounted on the outer wall of the base frame through the motor frame, and the output end of the driving motor is connected to the second shaft of the second dewatering roller; the second shaft of the second dewatering roller is driven to rotate by turning on the driving motor, and then the steering shaft is driven to rotate by the transmission of the transmission belt, and then the first dewatering roller and the second dewatering roller are driven to rotate toward each other through the meshing relationship of the first gear and the second gear in the adjusting seat, and then the paper web is squeezed and dehydrated by the first dewatering roller and the second dewatering roller.

[0011] Preferably, the auxiliary drying mechanism includes a drying box, a first support roller and a second support roller. The drying box is installed at the top of the bottom plate, and the drying box is located at the rear end of the first dehydration roller and the second dehydration roller. The drying box is provided with a feed port and a discharge port. The first support roller and the second support roller are crossed and rotated high and low on the inner wall of the drying box; the paper web is unfolded through the drying box and then the first support roller, thereby increasing the area and residence time of the paper web drying and dehydration, thereby improving the dehydration quality of the paper web.

[0012] Preferably, the drying mechanism includes an air distribution box, an air intake pipe, an air intake fan, an insulation box, an electric heating wire, an air outlet pipe and an exhaust fan. The air distribution box is installed at the bottom end of the drying box, the air intake pipe is installed at the bottom end of the bottom plate, the air intake pipe is connected to the air distribution box, the air intake fan is installed on the air intake pipe, the insulation box is installed at the bottom end of the bottom plate, the insulation box is also installed on the air intake pipe, the electric heating wire is spirally installed on the outer wall of the air intake pipe, the electric heating wire is located in the insulation box, the air outlet pipe is installed at the top of the drying box, and the exhaust fan is installed on the other end of the outlet pipe; by turning on the air intake fan, the outside air is blown onto the paper web on the first support roller and the second support roller through the air intake pipe and the air intake fan, and the air is heated by punching the insulation box to improve the efficiency and quality of paper drying and dehydration; by turning on the exhaust fan, the air with water vapor in the drying box is discharged through the air outlet pipe, the air flow rate is increased, and thus the drying efficiency is improved.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the spacing of the dewatering mechanism is adjusted by the adjusting mechanism to improve practicality; the dewatering mechanism is driven by the driving mechanism to squeeze and dewater the paper web; the driving mechanism is adjusted by the driving auxiliary mechanism to ensure that the driving mechanism stably drives the dewatering mechanism to squeeze and dewater the paper web at different spacings of the dewatering mechanism, thereby improving practicality; the auxiliary drying mechanism supports the paper web machine, thereby increasing the drying and dehydration time of the paper web, thereby improving the quality of paper web dehydration; and the drying mechanism dries the paper web. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first axonometric structural diagram of the present invention;

[0015] Figure 2 This is a second axonometric structural diagram of the present invention;

[0016] Figure 3 This is a third axonometric structural diagram of the present utility model;

[0017] Figure 4 This is a fourth axonometric structural diagram of the present utility model;

[0018] Figure 5 This is a front-view cross-sectional axonometric structural diagram of the present invention;

[0019] Figure 6This utility model Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0020] Markings in the accompanying drawings: 01, adjusting mechanism; 11, bottom plate; 12, base frame; 13, guide rod; 14, adjusting seat; 15, first screw; 16, adjusting motor; 02, dehydration mechanism; 21, first dehydration roller; 22, second dehydration roller; 03, drive auxiliary mechanism; 31, adjusting box; 32, second screw; 33, slider; 34, auxiliary rotating shaft; 04, driving mechanism; 41, pulley; 42, transmission belt; 43, driving motor; 44, steering shaft; 05, auxiliary drying mechanism; 51, drying box; 52, first support roller; 53, second support roller; 06, drying mechanism; 61, air distribution box; 62, air inlet pipe; 63, air inlet fan; 64, insulation box; 65, electric heating wire; 66, air outlet pipe; 67, exhaust fan. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0022] Example 1

[0023] like Figures 1 to 6 As shown, a dewatering device of a single-cylinder double-wire papermaking machine includes a dewatering mechanism 02, an adjusting mechanism 01, an auxiliary driving mechanism 03, a driving mechanism 04, an auxiliary drying mechanism 05, and a drying mechanism 06. The dewatering mechanism 02 is mounted on the adjusting mechanism 01, the auxiliary driving mechanism 03 is mounted on the adjusting mechanism 01, the driving mechanism 04 is mounted on the dewatering mechanism 02, the auxiliary drying mechanism 05 is mounted on the adjusting mechanism 01, and the drying mechanism 06 is mounted on the drying mechanism 06.

[0024] The adjustment mechanism 01 adjusts the spacing of the dewatering mechanism 02, the driving mechanism 04 drives the dewatering mechanism 02 to squeeze and dewater the paper web, the auxiliary driving mechanism 03 adjusts the driving mechanism 04, the auxiliary drying mechanism 05 supports the paper web machine, and the drying mechanism 06 dries the paper web.

[0025] The adjustment mechanism 01 includes a base plate 11, two base frames 12, multiple guide rods 13, two adjustment seats 14, two first lead screws 15 and two adjustment motors 16. The two base frames 12 are mounted on the top surface of the base plate 11, the guide rods 13 are mounted on the two base frames 12, the adjustment seat 14 is slidably mounted on the guide rods 13, the first lead screw 15 is rotatably mounted within the base plate 11 and the base frame 12, the adjustment seat 14 is threadedly engaged with the first lead screw 15, and the two adjustment motors 16 are mounted on the bottom end of the base plate 11. The output ends of the two adjustment motors 16 are connected to the two first lead screws 15, and the two adjustment motors 16 move synchronously.

[0026] The dehydration mechanism 02 includes a first dehydration roller 21 and a second dehydration roller 22. The first dehydration roller 21 is rotatably mounted on the two base frames 12 via a first rotating shaft, and the second dehydration roller 22 is rotatably mounted on the adjustment base 14 via a second rotating shaft. The first dehydration roller 21 and the second dehydration roller 22 are of the same size.

[0027] The auxiliary drive mechanism 03 includes an adjustment box 31, a second lead screw 32, a slider 33, and an auxiliary rotating shaft 34. The adjustment box 31 is mounted on the base frame 12. One end of the second lead screw 32 is rotatably mounted on the inner wall of the adjustment box 31. The second lead screw 32 is rotatably mounted on the adjustment box 31. The slider 33 is slidably mounted in the adjustment box 31. The slider 33 is threadably engaged with the second lead screw 32. The auxiliary rotating shaft 34 is rotatably mounted on the slider 33.

[0028] The driving mechanism 04 includes three pulleys 41, a transmission belt 42, a driving motor 43 and a steering shaft 44. The steering shaft 44 is rotatably mounted on the adjusting seat 14. A first gear and a second gear that mesh with each other are provided in the adjusting seat 14. The steering shaft 44 is connected to the first gear, and the second gear is connected to the first shaft of the first dehydration roller 21. The three pulleys 41 are respectively mounted on the steering shaft 44, the second shaft of the second dehydration roller 22 and the auxiliary shaft 34. The transmission belt 42 connects the three pulleys 41. The driving motor 43 is mounted on the outer wall of the base frame 12 through the motor frame. The output end of the drive motor 43 is connected to the second shaft of the second dehydration roller 22.

[0029] When the spacing between the first dewatering roller 21 and the second dewatering roller 22 is to be adjusted, the two air distribution boxes 61 are opened to work synchronously, thereby driving the first screw 15 to rotate, and the two adjustment seats 14 are driven to slide synchronously on the guide rod 13 through the threaded relationship, thereby adjusting the spacing of the dewatering mechanism 02. When the adjustment motor 16 is turned on to adjust the spacing between the first dewatering roller 21 and the second dewatering roller 22, the second screw 32 is rotated, and the slider 33 is driven to slide in the adjustment box 31 due to the threaded relationship, thereby adjusting the position of the auxiliary shaft 34, so that the driving mechanism 04 can be stably transmitted and driven, and the second shaft of the second dewatering roller 22 is driven to rotate by turning on the drive motor 43, and then the steering shaft 44 is driven to rotate through the transmission of the transmission belt 42, and then the first dewatering roller 21 and the second dewatering roller 22 are driven to rotate toward each other through the meshing relationship between the first gear and the second gear in the adjustment seat 14, and then the paper web is squeezed and dehydrated by the first dewatering roller 21 and the second dewatering roller 22.

[0030] Example 2

[0031] like Figure 2 and Figure 5 As shown, a dewatering device of a single-cylinder double-wire papermaking machine includes a dewatering mechanism 02, an adjusting mechanism 01, an auxiliary driving mechanism 03, a driving mechanism 04, an auxiliary drying mechanism 05, and a drying mechanism 06. The dewatering mechanism 02 is mounted on the adjusting mechanism 01, the auxiliary driving mechanism 03 is mounted on the adjusting mechanism 01, the driving mechanism 04 is mounted on the dewatering mechanism 02, the auxiliary drying mechanism 05 is mounted on the adjusting mechanism 01, and the drying mechanism 06 is mounted on the drying mechanism 06.

[0032] The adjustment mechanism 01 adjusts the spacing of the dewatering mechanism 02, the driving mechanism 04 drives the dewatering mechanism 02 to squeeze and dewater the paper web, the auxiliary driving mechanism 03 adjusts the driving mechanism 04, the auxiliary drying mechanism 05 supports the paper web machine, and the drying mechanism 06 dries the paper web.

[0033] The adjustment mechanism 01 includes a base plate 11, two base frames 12, multiple guide rods 13, two adjustment seats 14, two first lead screws 15 and two adjustment motors 16. The two base frames 12 are mounted on the top surface of the base plate 11, the guide rods 13 are mounted on the two base frames 12, the adjustment seat 14 is slidably mounted on the guide rods 13, the first lead screw 15 is rotatably mounted within the base plate 11 and the base frame 12, the adjustment seat 14 is threadedly engaged with the first lead screw 15, and the two adjustment motors 16 are mounted on the bottom end of the base plate 11. The output ends of the two adjustment motors 16 are connected to the two first lead screws 15, and the two adjustment motors 16 move synchronously.

[0034] The auxiliary drying mechanism 05 includes a drying box 51, a first support roller 52, and a second support roller 53. The drying box 51 is installed at the top of the bottom plate 11 and is located at the rear end of the first dehydration roller 21 and the second dehydration roller 22. The drying box 51 is provided with a feed port and a discharge port. The first support roller 52 and the second support roller 53 cross and rotate up and down on the inner wall of the drying box 51.

[0035] The drying mechanism 06 includes an air distribution box 61, an air inlet pipe 62, an air inlet fan 63, a heat preservation box 64, an electric heating wire 65, an air outlet pipe 66 and an exhaust fan 67. The air distribution box 61 is installed at the bottom end of the drying box 51, the air inlet pipe 62 is installed at the bottom end of the bottom plate 11, the air inlet pipe 62 is connected to the air distribution box 61, the air inlet fan 63 is installed on the air inlet pipe 62, the heat preservation box 64 is installed at the bottom end of the bottom plate 11, and the heat preservation box 64 is also installed on the air inlet pipe 62. The electric heating wire 65 is spirally installed on the outer wall of the air inlet pipe 62, the electric heating wire 65 is located in the heat preservation box 64, the air outlet pipe 66 is installed at the top of the drying box 51, and the exhaust fan 67 is installed on the other end of the air outlet pipe 66;

[0036] The paper web is unfolded through the drying box 51 and then the first support roller 52, thereby increasing the area and residence time of the paper web drying and dehydration, thereby improving the dehydration quality of the paper web. By turning on the air intake fan 63, the outside air is blown onto the paper web on the first support roller 52 and the second support roller 53 through the air intake pipe 62 and the air intake fan 63. The air is heated by punching the heat preservation box 64 to improve the efficiency and quality of the paper web drying and dehydration. By turning on the exhaust fan 67, the air with water vapor in the drying box 51 is discharged through the air outlet pipe 66, thereby increasing the air flow rate and thereby improving the drying efficiency.

[0037] like Figures 1 to 6As shown, the utility model is a dewatering device of a single-cylinder double-wire papermaking machine. When it is working, when the spacing between the first dewatering roller 21 and the second dewatering roller 22 needs to be adjusted, the two air distribution boxes 61 are opened to work synchronously, thereby driving the first screw 15 to rotate, and the two adjustment seats 14 are driven to slide synchronously on the guide rod 13 through the threaded relationship, thereby adjusting the spacing of the dewatering mechanism 02. When the adjusting motor 16 is turned on to adjust the spacing between the first dewatering roller 21 and the second dewatering roller 22, the second screw 32 is rotated, and the slider 33 is driven to slide in the adjusting box 31 due to the threaded relationship, thereby adjusting the position of the auxiliary rotating shaft 34, so that the driving mechanism 04 can be stably transmitted and driven, and the second rotating shaft of the second dewatering roller 22 is driven to rotate by turning on the driving motor 43, and then the transmission is driven by the transmission belt 42. The steering shaft 44 is driven to rotate, and then the meshing relationship between the first gear and the second gear in the adjustment seat 14 is used to drive the first dehydration roller 21 and the second dehydration roller 22 to rotate toward each other, and then the first dehydration roller 21 and the second dehydration roller 22 are used to squeeze and dehydrate the paper web, and the paper web is unfolded through the drying box 51 and then the first support roller 52, thereby increasing the area and residence time of the paper web drying and dehydration, thereby improving the dehydration quality of the paper web, and opening the air intake fan 63 to blow the outside air through the air intake pipe 62 and the air intake fan 63 onto the paper web on the first support roller 52 and the second support roller 53, and heating the air by punching the insulation box 64 to improve the efficiency and quality of the paper web drying and dehydration, and opening the exhaust fan 67 to discharge the air with water vapor in the drying box 51 through the outlet pipe 66, thereby increasing the air flow rate, thereby improving the drying efficiency.

[0038] The regulating motor 16, driving motor 43, electric heating wire 65, exhaust fan 67 and intake fan 63 of the utility model are purchased on the market. Technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for creative work by technicians in this field.

[0039] The main functions achieved by the utility model are: in the papermaking dehydration process, the spacing between the dehydration rollers can be adjusted conveniently, and the drying quality and efficiency can be improved.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A dewatering device for a single-cylinder double-wire papermaking machine, comprising a dewatering mechanism (02); characterized in that: The dehydration mechanism (02) is mounted on the adjustment mechanism (01), the auxiliary driving mechanism (03), the driving mechanism (04), the auxiliary drying mechanism (05) and the drying mechanism (06), wherein the dehydration mechanism (02) is mounted on the adjustment mechanism (01), the auxiliary driving mechanism (03) is mounted on the adjustment mechanism (01), the driving mechanism (04) is mounted on the dehydration mechanism (02), the auxiliary drying mechanism (05) is mounted on the adjustment mechanism (01), and the drying mechanism (06) is mounted on the drying mechanism (06), and the spacing of the dehydration mechanism (02) is adjusted by the adjustment mechanism (01); The driving mechanism (04) drives the dewatering mechanism (02) to squeeze and dewater the paper web, and the driving mechanism (04) is adjusted by driving the auxiliary mechanism (03). The auxiliary drying mechanism (05) supports the paper web machine, and the drying mechanism (06) dries the paper web.

2. A dewatering device for a single-cylinder double-wire papermaking machine according to claim 1, characterized in that: The adjusting mechanism (01) comprises a base plate (11), two base frames (12), a plurality of guide rods (13), two adjusting seats (14), two first lead screws (15) and two adjusting motors (16), wherein the two base frames (12) are mounted on the top surface of the base plate (11), the guide rods (13) are mounted on the two base frames (12), the adjusting seat (14) is slidably mounted on the guide rods (13), the first lead screw (15) is rotatably mounted in the base plate (11) and the base frame (12), the adjusting seat (14) is threadedly engaged with the first lead screw (15), the two adjusting motors (16) are mounted on the bottom end of the base plate (11), the output ends of the two adjusting motors (16) are connected to the two first lead screws (15), and the two adjusting motors (16) move synchronously.

3. A dewatering device for a single-cylinder double-wire papermaking machine as claimed in claim 2, characterized in that: The dehydration mechanism (02) includes a first dehydration roller (21) and a second dehydration roller (22). The first dehydration roller (21) is rotatably mounted on two base frames (12) via a first rotating shaft, and the second dehydration roller (22) is rotatably mounted on an adjustment seat (14) via a second rotating shaft. The first dehydration roller (21) and the second dehydration roller (22) are of the same size.

4. A dewatering device for a single-cylinder double-wire papermaking machine as claimed in claim 2, characterized in that: The drive auxiliary mechanism (03) includes an adjustment box (31), a second lead screw (32), a slider (33) and an auxiliary rotating shaft (34), wherein the adjustment box (31) is mounted on the base frame (12), one end of the second lead screw (32) is rotatably mounted on the inner wall of the adjustment box (31), the second lead screw (32) is rotatably mounted on the adjustment box (31), the slider (33) is slidably mounted in the adjustment box (31), the slider (33) is threadably engaged with the second lead screw (32), and the auxiliary rotating shaft (34) is rotatably mounted on the slider (33).

5. The dewatering device of a single-cylinder double-wire papermaking machine according to claim 4, characterized in that: The driving mechanism (04) includes three pulleys (41), a transmission belt (42), a driving motor (43) and a steering shaft (44). The steering shaft (44) is rotatably mounted on the adjustment seat (14). A first gear and a second gear that mesh with each other are provided in the adjustment seat (14). The steering shaft (44) is connected to the first gear, and the second gear is connected to the first shaft of the first dehydration roller (21). The three pulleys (41) are respectively mounted on the steering shaft (44), the second shaft of the second dehydration roller (22) and the auxiliary shaft (34). The transmission belt (42) is connected to the three pulleys (41). The driving motor (43) is mounted on the outer wall of the base frame (12) through a motor frame. The output end of the driving motor (43) is connected to the second shaft of the second dehydration roller (22).

6. The dewatering device of a single-cylinder double-wire papermaking machine according to claim 2, characterized in that: The auxiliary drying mechanism (05) includes a drying box (51), a first support roller (52) and a second support roller (53). The drying box (51) is installed on the top of the bottom plate (11). The drying box (51) is located at the rear end of the first dehydration roller (21) and the second dehydration roller (22). The drying box (51) is provided with a feed port and a discharge port. The first support roller (52) and the second support roller (53) are cross-distributed on the inner wall of the drying box (51) and rotated in high and low directions.

7. A dewatering device for a single-cylinder double-wire papermaking machine as claimed in claim 6, characterized in that: The drying mechanism (06) includes an air distribution box (61), an air inlet pipe (62), an air inlet fan (63), a heat preservation box (64), an electric heating wire (65), an air outlet pipe (66) and an exhaust fan (67). The air distribution box (61) is installed at the bottom end of the drying box (51), the air inlet pipe (62) is installed at the bottom end of the bottom plate (11), the air inlet pipe (62) is connected to the air distribution box (61), the air inlet fan (63) is installed on the air inlet pipe (62), the heat preservation box (64) is installed at the bottom end of the bottom plate (11), the heat preservation box (64) is also installed on the air inlet pipe (62), the electric heating wire (65) is spirally installed on the outer wall of the air inlet pipe (62), the electric heating wire (65) is located in the heat preservation box (64), the air outlet pipe (66) is installed at the top of the drying box (51), and the exhaust fan (67) is installed on the other end of the air outlet pipe (66).

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