Dry net cleaning device for papermaking

Abstract

The utility model discloses a dry net cleaning device for papermaking, which relates to the technical field of papermaking and comprises supports, a movable frame and a cleaning component, the supports are symmetrically arranged on two sides of a papermaking dry net, the movable frame comprises an upper frame and a lower frame which are sleeved on the supports in an up-down sliding manner, and the upper frame and the lower frame are connected through a spring; through the arrangement of the movable frame, the lifting driving mechanism and the cleaning assembly, the combination of the dust collection barrel and the brush is adopted, and the driving effect of the driving piece is matched, residual sticky substances on the dry net can be effectively removed and discharged in time through the dust collection pipeline, automatic cleaning of residues on the dry net is achieved, and the cleaning efficiency is improved. The lifting driving mechanism can control the cleaning assembly to move up and down and adjust the contact state of the cleaning piece and the smearing piece with the dry net, flexible adjustment of the operation state of the cleaning assembly is achieved, abrasion caused by long-time contact with the dry net is avoided, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking, and particularly relates to a dry net cleaning device for papermaking. Background Art

[0002] With the improvement of people's environmental protection awareness, today, with the rapid development of the papermaking industry, especially the raw material structure of industrial packaging paper has been gradually adjusted to mainly use waste paper raw materials. At present, the proportion of waste paper raw materials in the raw material structure of the papermaking industry reaches more than 60%. With the increase in the number of times of waste paper recycling, the types and quantities of adhesives contained in waste paper raw materials are increasing. Some adhesives are extremely easy to deposit and adhere on the dry net, blocking the mesh holes, which in turn affects the cleanliness of the dry net in the drying section. Poor cleanliness of the dry net is likely to cause problems such as broken heads, paper defects, poor air permeability of the dry net, reduced drying efficiency, and shortened service life of the dry net. Therefore, it is necessary to regularly clean the dry net.

[0003] Traditional cleaning devices often need to stop the machine for dry net cleaning, which seriously affects production efficiency. The patent authorization number is CN 210127357 U, which discloses a paper machine with a dry net cleaning device. During the process of spraying a cleaning agent on the dry net for cleaning, a spraying method is adopted. Due to uneven spraying, the protective film formed on the dry net is incomplete, and the cleaning effect on the dry net is poor. Moreover, although the above device can achieve non-stop cleaning of the dry net, since the brush must always be in contact with the dry net and cannot be separated, the wear on the dry net is very large. Too frequent cleaning will seriously affect the service life of the dry net. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides a dry net cleaning device for papermaking, which can realize efficient, automatic and continuous dry net cleaning work, significantly improve production efficiency, and at the same time reduce maintenance costs and extend the service life of equipment.

[0005] The solution adopted by the utility model to solve its technical problems is: a dry net cleaning device for papermaking, including a bracket, a movable frame and a cleaning component. The brackets are symmetrically arranged on both sides of the papermaking dry net. The movable frame includes an upper frame and a lower frame that are slidably sleeved on the bracket up and down, and the upper frame and the lower frame are connected by a spring. And a lifting drive mechanism for controlling the relative up and down movement of the upper frame and the lower frame is arranged on the bracket. The cleaning component includes a cleaning member, an applying member and a drying pipeline that are arranged through the papermaking dry net and symmetrically installed on the upper frame and the lower frame up and down. The cleaning member, the applying member and the drying pipeline are arranged in sequence. The cleaning member is rotatably sleeved on the movable frame, and the upper and lower cleaning members can be controlled to rotate relatively by a driving member. The end of the cleaning member is connected to a vacuum cleaner through a dust suction pipeline. The applying member includes a hollow sponge seat and a sponge brush arranged in the hollow sponge seat. The end of the hollow sponge seat is connected to a cleaning agent delivery pipe, and the end of the drying pipeline is connected to an air duct.

[0006] Further, the lifting drive mechanism includes a rotating rod vertically and rotatably sleeved in the bracket. A double-threaded section is provided on the rotating rod. Oppositely threaded sleeves that can move relative to each other are symmetrically and threadedly sleeved on the double-threaded section. The two sleeves are respectively fixed to the upper frame and the lower frame. A rotating member is fixedly sleeved on the upper end of the rotating rod.

[0007] Further, the cleaning member includes a dust suction cylinder. Brushes are arranged on the periphery of the dust suction cylinder. Dust suction ports are arranged in the gaps between adjacent brushes. One end of the dust suction cylinder is sleeved on the movable frame through a rotary joint. The dust suction pipe is connected to the dust suction cylinder through the rotary joint.

[0008] Further, the driving member includes gears respectively and fixedly sleeved on the ends of the upper and lower cleaning members and meshing with each other. A motor for controlling the rotation of the gears is installed on the movable frame.

[0009] Further, the air duct is connected to the upper and lower drying pipes through a shunt pipe. The cleaning agent delivery pipe is connected to the upper and lower coating members through a shunt pipe. The dust suction pipe is connected to the upper and lower cleaning members through a shunt pipe.

[0010] Further, the vertical pipe section of the shunt pipe is arranged as a telescopic hose structure.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By providing a movable frame, a lifting drive mechanism and a cleaning component, the present utility model adopts the combination of a dust suction cylinder and brushes, and cooperates with the driving effect of the driving member, which can effectively remove the residual adhesive on the dry net and discharge it in time through the dust suction pipe, realizing the automatic cleaning of the residues on the dry net; the symmetrically arranged upper and lower cleaning members and coating members can simultaneously contact the upper and lower net surfaces of the papermaking dry net, realizing the double-sided cleaning of the dry net. Moreover, the setting of the sponge brush can evenly apply the cleaning agent on the dry net to form a protective film. Using the sponge brush instead of the spraying method improves the cleaning effect, reduces the waste of the cleaning agent, and saves costs; the lifting drive mechanism can control the up and down movement of the cleaning component, adjust the contact state between the cleaning member and the coating member and the dry net, realize the flexible adjustment of the operation state of the cleaning component, avoid the wear caused by long-term contact with the dry net, and extend the service life of the equipment; and this device can realize the cleaning work of the dry net without stopping the paper machine, greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the use state of the present utility model;

[0014] Figure 2 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 3Schematic diagram of the partial sectional structure of the present utility model;

[0016] Figure 4 Schematic diagram of the front view structure of the present utility model;

[0017] Figure 5 Schematic diagram of the cleaning component structure of the present utility model.

[0018] In the figure: 1, bracket; 2, movable frame; 21, upper frame; 22, lower frame; 23, spring; 3, lifting drive mechanism; 31, rotating rod; 32, double-threaded section; 33, screw sleeve; 34, rotating member; 4, cleaning component; 41, cleaning part; 411, dust suction cylinder; 412, brush; 413, dust suction port; 42, coating part; 421, hollow sponge seat; 422, sponge brush; 43, drying pipeline; 44, driving member; 441, motor base; 442, motor; 443, gear; 45, air duct; 46, cleaning agent delivery pipe; 47, rotary joint; 48, dust suction pipeline; 49, vacuum cleaner; 5, papermaking dry net. Specific embodiments

[0019] The present utility model will be further described below with reference to the drawings and embodiments.

[0020] Please refer to Figures 1-5 , the present utility model provides a technical solution for a dry net cleaning device for papermaking: Embodiment

[0021] According to Figure 1 , Figure 2 and Figure 4 shown, it includes brackets 1 symmetrically arranged on both sides of the papermaking dry net 5. A movable frame 2 is arranged inside the bracket 1, and a cleaning component 4 penetrating through the papermaking dry net 5 is arranged on the movable frame 2. As Figure 3 shown, the cleaning component 4 includes a cleaning part 41 and a coating part 42 arranged in sequence. There are two groups of the cleaning part 41 and the coating part 42 respectively, and they are symmetrically arranged up and down. Moreover, the cleaning part 41 and the coating part 42 can contact the upper and lower net surfaces of the papermaking dry net 5. The setting position of the cleaning component 4 can realize the cleaning work of the papermaking dry net 5 without stopping the papermaking machine, and does not affect the normal operation of the papermaking dry net 5.

[0022] From Figure 5It can be seen that the cleaning member 41 includes a dust suction cylinder 411. Brush bristles 412 are arranged on the peripheral side of the dust suction cylinder 411. The brush bristles 412 can contact the mesh surface of the papermaking dry net 5, and a dust suction port 413 is arranged in the gap between adjacent brush bristles 412. One end of the dust suction cylinder 411 is rotatably sleeved on the front side movable frame 2 through a rotating shaft, and the other end is rotatably sleeved on the rear side movable frame 2 through a rotary joint 47. The cleaning member 41 is connected with a dust suction pipe 48 through the rotary joint 47. The rear end of the dust suction pipe 48 is connected to a dust collector 49. The upper and lower cleaning members 41 can be controlled to rotate relative to each other by a driving member 44. During the cleaning process of the papermaking dry net 5, the papermaking machine does not stop, and the papermaking dry net 5 continues to drive. The driving member 44 drives the upper and lower cleaning members 41 to rotate. The adhesive residues on the papermaking dry net 5 can be brushed off by the brush bristles 412, and then the brushed-off debris is immediately sucked into the dust suction cylinder 411 through the dust suction port 413 under the action of the dust collector 49 and discharged through the dust suction pipe 48, realizing the timely cleaning of the adhesive on the papermaking dry net 5.

[0023] It can be seen that Figure 3 the coating member 42 includes a hollow sponge seat 421. A sponge brush 422 is sleeved in the hollow sponge seat 421. The end of the hollow sponge seat 421 is connected with a cleaning agent delivery pipe 46. The dry net cleaning agent can enter the hollow sponge seat 421 through the cleaning agent delivery pipe 46 and wet the sponge brush 422. The upper and lower sponge brushes 422 are directly in contact with the mesh surface of the papermaking dry net 5, and the cleaning agent is evenly applied on the papermaking dry net 5 to form a protective film attached to the dry net mesh surface. By using the sponge brush 422 to brush the cleaning agent on the dry net instead of spraying in the prior art, while improving the uniformity of the cleaning agent attached to the dry net, the waste of the cleaning agent can be reduced, and the cleaning effect on the dry net can be improved.

[0024] It can also be seen that Figure 3 a drying pipe 43 is further arranged at the rear side of the cleaning member 41 and the coating member 42. The drying pipes 43 are symmetrically arranged above and below the papermaking dry net 5. The ends of the drying pipes 43 are connected with air pipes 45. The air pipes 45 can be directly connected to an external dryer or connected to the drying equipment of the papermaking machine. Air is conveyed into the drying pipes 43 through the air pipes 45, and the papermaking dry net 5 after cleaning is timely dried through the drying pipes 43 without affecting the use of the dry net.

[0025] The driving member 44 includes gears 443 respectively fixedly sleeved on the ends of the upper and lower cleaning members 41, and the two gears 443 mesh with each other. A motor 442 is installed on the movable frame 2 through a motor seat 441. The output end of the motor 442 is connected to any one of the gears 443. The rotation of the gear 443 can be controlled by the motor 442. Under the meshing of the two gears 443, the two cleaning members 41 are driven to rotate on the upper and lower mesh surfaces of the papermaking dry net 5 in a direction opposite to the transmission direction of the papermaking dry net 5. With the transmission of the papermaking dry net 5, the cleaning of the mesh surface is realized.

[0026] During specific use, for a papermaking dry net cleaning device of the present utility model, when cleaning the papermaking dry net 5, the papermaking dry net 5 can continue the papermaking work. During the cleaning process, the motor 442 operates, and the cleaning member 41 is driven to rotate on the dry net through the meshing action of the two gears 443. During the rotation of the cleaning member 41, the brush 412 contacts the upper and lower mesh surfaces of the dry net, brushing off the residual adhesive on the mesh surface. At the same time, the brushed adhesive is sucked into the dust suction cylinder 411 through the dust suction port 413 and enters the vacuum cleaner 49 through the dust suction pipe 48 to realize the timely cleaning of sundries. Then, the cleaned dry net moves to the position of the coating member 42. The cleaning agent is continuously conveyed into the coating member 42 through the cleaning agent delivery pipe 46, so that the sponge brush 422 adheres to the cleaning agent and coats it on the papermaking dry net 5. Finally, the papermaking dry net 5 passes through the drying pipe 43 to dry the applied cleaning agent. When the papermaking dry net 5 completes the cleaning work after passing through the cleaning assembly 4, it continues to be transmitted for papermaking work, realizing the continuous cleaning of the papermaking dry net 5 without stopping the machine. Embodiment

[0027] Based on Embodiment 1, as Figure 2 and Figure 3 shown, the movable frame 2 includes an upper frame 21 and a lower frame 22 that are slidably sleeved on the bracket 1 up and down, and the upper frame 21 and the lower frame 22 are connected by a spring 23. The upper and lower groups of cleaning members 41, coating members 42, and drying pipes 43 are respectively symmetrically installed on the upper frame 21 and the lower frame 22. An elevating drive mechanism 3 for controlling the relative up and down movement of the upper frame 21 and the lower frame 22 is provided on the bracket 1. The elevating drive mechanism 3 includes a rotating rod 31 that is vertically rotatably sleeved in the bracket 1. A bidirectional thread section 32 is provided on the rotating rod 31. Relatively movable screw sleeves 33 are symmetrically threadedly sleeved on the bidirectional thread section 32, and the two screw sleeves 33 are respectively fixed to the upper frame 21 and the lower frame 22, and a rotating member 34 is fixedly sleeved on the upper end of the rotating rod 31.

[0028] The upper and lower groups of cleaning members 41, coating members 42, and drying pipes 43 are respectively connected to the corresponding pipes through shunt pipes, and the vertical pipe sections of the shunt pipes are of a telescopic hose structure.

[0029] During actual use, for a dry net cleaning device for papermaking according to the present utility model, when dry net cleaning is required, the rotating member 34 drives the rotating rod 31 to rotate. Under the cooperation of the double-threaded section 32 and the corresponding screw sleeve 33, the upper frame 21 and the lower frame 22 can be driven to move towards the middle, so that the cleaning member 41 and the coating member 42 come into contact with the upper and lower net surfaces, and the dry net cleaning work is realized through the cleaning assembly 4. When dry net cleaning is not required, the rotating rod 31 is rotated in the reverse direction to move the upper frame 21 and the lower frame 22 towards both sides, and the cleaning member 41 and the coating member 42 are controlled to leave the upper and lower net surfaces. The position adjustment of the cleaning assembly 4 can be realized through the lifting drive mechanism 3. When cleaning is required, it moves to a position where it can contact the dry net for cleaning, and when cleaning is not required, it disengages from the dry net, avoiding the cleaning member 41 and the coating member 42 being in contact with the dry net all the time during the papermaking process and unable to disengage, resulting in mutual wear between the two, and reducing the service life of the cleaning assembly 4 and the dry net.

[0030] The above are only the preferred embodiments of the present utility model, which do not limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A papermaking dryer fabric cleaning device, characterized in that: The invention comprises a support (1), a movable frame (2) and a cleaning component, wherein the support (1) is symmetrically arranged on both sides of a papermaking drying net (5), the movable frame (2) comprises an upper frame (21) and a lower frame (22) which are slidably mounted on the support (1) in an upward and downward manner, and the upper frame (21) and the lower frame (22) are connected by a spring (23), and a lifting drive mechanism (3) for controlling the upper frame (21) and the lower frame (22) to move relative to each other upward and downward is provided on the support (1); the cleaning component comprises a cleaning member (41), a smear member (42) and a drying pipe (43) which are arranged throughout the papermaking drying net (5) and are symmetrically mounted on the upper frame (21) and the lower frame (22) in an upward and downward manner. ), a cleaning member (41), an smearing member (42) and a drying duct (43) are arranged in sequence, the cleaning member (41) is rotatably mounted on the movable frame (2), and the upper and lower cleaning members (41) can be controlled to rotate relative to each other by a driving member (44), the end of the cleaning member (41) is connected to a dust collector (49) via a dust collection duct (48), the smearing member (42) comprises a hollow sponge seat (421) and a sponge brush (422) arranged in the hollow sponge seat (421), the end of the hollow sponge seat (421) is connected to a cleaning agent delivery pipe (46), and the end of the drying duct (43) is connected to an air duct (45).

2. A papermaking dryer fabric cleaning device according to claim 1, characterized in that: The lifting drive mechanism (3) comprises a rotating rod (31) which is vertically rotatably sleeved in the bracket (1), a bidirectional threaded section (32) being provided on the rotating rod (31), a relatively movable screw sleeve (33) being symmetrically sleeved on the bidirectional threaded section (32), and the two screw sleeves (33) are respectively fixed to the upper frame (21) and the lower frame (22), and a rotating member (34) is fixedly sleeved on the upper end of the rotating rod (31).

3. A papermaking dryer fabric cleaning device according to claim 1, characterized in that: The cleaning member (41) comprises a dust collection cylinder (411), brushes (412) are arranged around the dust collection cylinder (411), and a dust collection port (413) is provided in the gap between adjacent brushes (412); one end of the dust collection cylinder (411) is sleeved on the movable frame (2) via a rotating joint (47), and a dust collection pipe (48) is connected to the dust collection cylinder (411) via the rotating joint (47).

4. A papermaking dryer fabric cleaning device according to claim 1, characterized in that: The driving member (44) comprises gears (443) which are respectively fixedly sleeved on the ends of the upper and lower cleaning members (41) and mesh with each other, and a motor (442) for controlling the rotation of the gears (443) is mounted on the movable frame (2).

5. A papermaking dryer fabric cleaning device according to claim 1, characterized in that: The air duct (45) is connected to the upper and lower drying ducts (43) via a shunt pipe, the cleaning agent delivery pipe (46) is connected to the upper and lower smearing members (42) via a shunt pipe, and the dust collection duct (48) is connected to the upper and lower cleaning members (41) via a shunt pipe.

6. A papermaking dryer fabric cleaning device according to claim 5, characterized in that: The vertical pipe section of the diversion pipe is configured as a telescopic hose structure.

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