Automatic cleaning device for paper machine forming wire

Abstract

The invention discloses an automatic cleaning device for a paper machine forming net, comprising a pump station, wherein a filter assembly is arranged at the liquid inlet end of the pump station; the filter assembly comprises a plurality of sets of detachable filter mechanisms, the plurality of sets of the filter mechanisms are sequentially distributed along the direction of water flow, and each set of the filter mechanisms comprises filter cotton; the invention also comprises a cleaning assembly, wherein the cleaning assembly comprises a crossbeam, a guide rail, a transmission belt and a cleaning mechanism, the guide rail is adjustably arranged on the crossbeam, and the cleaning mechanism is arranged on a side of the guide rail away from the crossbeam; the invention provides a cleaning assembly, wherein the cleaning assembly comprises a guide rail, and the guide rail is arranged in an annular structure, and a cleaning head is movably arranged on the guide rail, and the cleaning head can be controlled to move along the circumferential direction of the guide rail under the action of an external force, that is, the cleaning head moves back and forth along the transverse direction of the forming net, which provides convenience for completing the cleaning of the forming net and changes the current situation of densely arranging a plurality of cleaning heads, resulting in waste of water resources and electric energy.

Description

Technical Field

[0001] The invention relates to the field of forming net cleaning equipment, in particular to an automatic cleaning device for a paper machine forming net. Background Art

[0002] In the production process of modern paper machines, in order to ensure the optimal production of paper machines, the forming fabric of the paper machine mesh must maintain a good operating state, that is, the forming fabric needs to maintain excellent fiber support and efficient dehydration performance, and have high operating stability.

[0003] During the production process of pulp dehydration on the forming net, more or less impurities such as fillers, chemicals and fine fibers will remain on the forming net, which must be cleaned before continued use, otherwise it will affect the dehydration effect and the quality of the paper, and will also increase additional energy consumption. Therefore, it is very important to adopt a suitable and effective cleaning method in the papermaking process system, which can not only optimize production, but also extend the service life of the forming net.

[0004] In the existing equipment, the cleaning process of the paper machine forming wire is often carried out by setting a high-pressure spray pipe under the forming wire, and spraying high-pressure water on the forming wire to remove impurities. The distribution principle of the cleaning spray pipe is to clean the forming wire as soon as possible after the wet paper web is separated, so as to prevent some dirt from transferring and gathering on the return roller and then being embedded deeper into the forming wire and difficult to remove.

[0005] The washing equipment commonly used in papermaking machines is an electric reciprocating water spray pipe, also known as a step-by-step reciprocating water spray pipe or a high-pressure mobile spray water pipe. The traditional high-pressure mobile water spray pipe has the following shortcomings due to its technical characteristics: Affected by the stroke of the reciprocating oscillator, the nozzle spacing of the spray pipe is generally within 200mm (usually 100mm, and there are also denser nozzles). In order to wash the entire fabric, the nozzle spacing is mostly 100mm, and the nozzle aperture is 0.6-1.2. In this case, cleaning a forming network requires a lot of water resources and electricity.

[0006] If the nozzle is clogged, blind spots will be created during the cleaning of the forming net, so that some areas of the forming net cannot be cleaned. In addition, the nozzle can only be replaced when the paper machine is shut down, that is, the forming net cannot be cleaned during the pulp production process. Due to the clogged nozzle, the existing mobile spray has a blind spot for cleaning, the cleaning is not thorough, the cleaning effect is not ideal, and the dehydration requirements of the pulp cannot be met, resulting in insufficient paper dehydration, and poor wet paper web formation, so that paper that meets the requirements cannot be produced.

[0007] The reciprocating oscillating device of the mobile sprinkler pipe has a high failure rate. There are many types of reciprocating oscillating devices currently used on the market, including hydraulic, pneumatic, eccentric, double-helix mechanical, CNC screw, rack, etc. Most of these types have high environmental requirements, are easy to damage, have high maintenance and replacement frequencies, and the key is to affect normal startup. Summary of the invention

[0008] The object of the present invention is to provide an automatic cleaning device for a paper machine forming wire, aiming to improve the problem that the device for cleaning the paper forming wire has deficiencies.

[0009] The present invention is implemented as follows: an automatic cleaning device for a paper machine forming network includes a pump station, a filter assembly is arranged at the liquid inlet end of the pump station; the filter assembly includes multiple sets of detachable filter mechanisms, the multiple sets of filter mechanisms are distributed in sequence along the direction of water flow, and each set of filter mechanisms includes filter cotton; it also includes a cleaning assembly, the cleaning assembly includes a beam, a guide rail, a transmission belt and a cleaning mechanism, the guide rail is adjustably arranged on the beam, the cleaning mechanism is arranged on a side of the guide rail away from the beam, the transmission belt is arranged between the beam and the guide rail, and the cleaning mechanism can be controlled to move along the circumference direction of the guide rail; the cleaning mechanism includes an adjustable cleaning head, and the cleaning head is connected to the liquid outlet end of the pump station.

[0010] Preferably, the pump station includes two liquid pumps, the liquid inlet ends of the two liquid pumps are connected to a liquid inlet pipe, and the liquid outlet ends are connected to a liquid outlet pipe, and a first control valve and a second control valve are respectively arranged on the liquid inlet pipe and the liquid outlet pipe near the two liquid pumps.

[0011] Preferably, a first motor is provided on the side of each of the two liquid pumps, the output shaft of the first motor is connected to the power input shaft of the liquid pump through a coupling, and an infusion tube is provided at the end of the liquid outlet pipe, and the end of the infusion tube extends to the cleaning assembly.

[0012] Preferably, the filtering mechanism also includes an upper sealing shell, a lower sealing shell and two end plates. The central angles of the upper sealing shell and the lower sealing shell are set to 180° and are connected by bolts. The two end plates are arranged in parallel, and the end faces close to each other are provided with annular plates, while the end faces far away from each other are provided with flanges. The annular plate is sealed and inserted into the space formed by the upper sealing shell and the lower sealing shell, and the flange is installed at the end of the liquid inlet pipe by bolts.

[0013] Preferably, the filter cotton is arranged in the support tube, a notch is arranged at one end of the support tube away from the liquid inlet tube, and a grid is arranged at one end close to the liquid inlet tube; multiple support tubes are arranged end to end, and the outer diameter is equal to the outer diameter of the annular plate, and the support tubes are in contact with the annular plate.

[0014] Preferably, the guide rail includes two main pipes and two bent pipes, the two main pipes are distributed up and down and have sleeve grooves at the ends, the two bent pipes are distributed at both ends of the two main pipes and have sleeve plates fixed at the ends, and the sleeve plates are installed in the sleeve grooves; the end faces of the main pipes and the bent pipes are both arranged as C-shaped structures.

[0015] Preferably, a connecting frame is connected to the sides of the two main pipes, and the connecting frame includes a plate and a fixed plate, which are respectively connected to the main pipe and the cross beam, and the first connecting pipe and the second connecting pipe are respectively arranged on the side walls close to each other, and the second connecting pipe is hinged between the two first connecting pipes; a lifting hole is arranged on the second connecting pipe, and a lifting rod is penetrated through the lifting hole, an adjusting screw is penetrated through the middle thread of the lifting rod, and an end column is fixedly arranged at the end, and the end of the adjusting screw is connected to the second connecting pipe through a bearing; a plurality of grooves are arranged on the edge of the first connecting pipe, and the end column extends into a certain groove.

[0016] Preferably, the cleaning mechanism also includes a vertical plate, an upper wheel body, a lower wheel body and a limiting ball. The upper wheel body, the limiting ball and the lower wheel body are arranged on the same side of the vertical plate from top to bottom. The upper wheel body and the limiting ball are distributed on the upper and lower sides of the main pipe, and the limiting ball extends into the main pipe. The transmission belt is connected to the central axis of the upper wheel body or the lower wheel body, and pulleys are provided at both ends of the inner side. The central axis of the pulley passes through the crossbeam, and the central axis of one of the pulleys is connected to the second motor.

[0017] Preferably, a clamp is provided on the cleaning head, and a self-adjusting plate is provided on the side, a convex plate and a clamping plate are fixedly provided on the side of the self-adjusting plate, and a slot is provided on the side wall, the clamping plate at the end of the clamping plate is installed in the slot, the ear plate of the clamp extends between the clamping plate and the convex plate, and the end of the fastening bolt provided through the ear plate and the convex plate is threadedly inserted into the clamping plate; the bottom of the self-adjusting plate is connected by bolts and inserted into the connecting hole of the counterweight column, and a connecting frame is provided on the top of the self-adjusting plate, and the connecting frame is sleeved on the convex shaft of the vertical plate through a bearing connection.

[0018] Preferably, a bracket can be provided below the cleaning component, the bracket is provided in an L-shaped structure, and a first top plate and a second top plate are provided above the bracket, the first top plate and the second top plate are adjustably connected via a connecting mechanism, and an insert plate is provided below the second top plate, the insert plate is connected via bolts and inserted into the bracket.

[0019] The beneficial effects brought by the present invention are:

[0020] 1. The present invention provides a cleaning component, which includes a guide rail, and the guide rail is arranged in an annular structure. At the same time, a cleaning head is movably arranged on the guide rail. The cleaning head can be controlled to move along the circumferential direction of the guide rail under the action of an external force, that is, the cleaning head moves back and forth along the lateral direction of the forming net, which provides convenience for completing the cleaning of the forming net and changes the current situation of densely arranging multiple cleaning heads, resulting in waste of water resources and electric energy.

[0021] 2. The present invention is provided with at least two groups of cleaning components, and the cleaning heads of the two groups of cleaning components are staggered. Under the condition of meeting the cleaning requirements of the forming net, when the cleaning head is blocked, the operation of a cleaning component can be suspended, so as to provide convenience for cleaning or even replacing the cleaning head, thereby avoiding unsatisfactory cleaning of the forming net due to the inconvenience of replacing the cleaning head due to blockage.

[0022] 3. The present invention is provided with a cleaning head with an adjustable tilt angle and a guide rail with an adjustable tilt state, which can facilitate the adjustment of the cleaning state of the cleaning head according to the installation site and cleaning needs, thereby facilitating the effective cleaning of the forming net. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and characteristics of the present invention become more obvious. The drawings and descriptions of the exemplary embodiments of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

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

[0025] Figure 2 It is a structural schematic diagram of the pump station of the present invention;

[0026] Figure 3 is a schematic diagram of the structure of the filter assembly of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the end plate of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the bracket and the connecting mechanism of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the top plate and the connecting mechanism of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the connection mechanism of the present invention;

[0032] Fig. 9 is a first structural schematic diagram of the cleaning assembly of the present invention;

[0033] Fig.10 is a second structural schematic diagram of the cleaning assembly of the present invention;

[0034] Fig.11 It is a structural schematic diagram of the guide rail of the present invention;

[0035] Fig.12 It is a structural schematic diagram of the connecting frame of the present invention;

[0036] Fig.13 It is a structural schematic diagram of the fixing plate of the present invention;

[0037] Fig.14 It is a schematic diagram of the structure of the plate of the present invention;

[0038] Fig.15 It is a structural schematic diagram of the cleaning mechanism of the present invention;

[0039] Fig.16 It is a partial structural schematic diagram of the cleaning mechanism of the present invention.

[0040] In the figure: pump station 1; control box 11; first motor 12; liquid pump 13; first control valve 14; liquid inlet pipe 15; liquid outlet pipe 16; second control valve 17; infusion pipe 18; bracket 2; first top plate 21; second top plate 22; plug plate 23; cleaning assembly 3; transmission belt 31; pulley 311; second motor 312; guide rail 32; sleeve plate 321; main pipe 322; sleeve groove 324; elbow 323; crossbeam 33; filter assembly 4; upper sealing shell 41; end plate 42; annular plate 421; filter mechanism 43; support pipe 431; grid 432; notch 433; filter cotton 434; lower sealing Shell 44; connecting mechanism 5; first frame 51; second frame 52; snap plate 53; snap groove 54; pressure plate 55; bidirectional screw 56; cleaning mechanism 6; vertical plate 61; upper wheel body 62; limiting ball 63; lower wheel body 64; self-adjusting plate 65; clamping plate 651; snap plate 652; snap groove 653; fastening bolt 654; counterweight column 66; connecting hole 661; cleaning head 67; clamping hoop 671; connecting frame 68; connecting frame 7; plate 71; first connecting pipe 711; groove 712; fixing plate 72; second connecting pipe 721; lifting hole 722; lifting rod 723; adjusting screw 724; end column 725. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] Example 1

[0044] In order to reduce the waste of water resources in cleaning the forming net, facilitate the removal of blocked nozzles as needed, and not affect the operation of the papermaking machine, this embodiment provides a new forming net cleaning device. The device is arranged on the side of the papermaking machine, and the forming net on the papermaking machine can be cleaned by the device.

[0045] like Figure 1 As shown, specifically, the cleaning device includes a pump station 1, a cleaning component 3, etc. The pump station 1 is arranged on the side of the paper machine, and the cleaning component 3 is arranged at the paper machine and arranged along the width direction of the paper machine, that is, the cleaning component 3 is arranged along the transverse direction of the forming net, and the cleaning component 3 is connected to the pump station 1, and high-pressure cleaning liquid can be delivered to the cleaning component 3 when the pump station 1 is working, thereby realizing the cleaning treatment of the forming net.

[0046] like Figure 2 As shown, in order to transport the cleaning liquid to the cleaning component 3, the pump station 1 includes two liquid pumps 13, two first motors 12, etc. The two first motors 12 and the liquid pump 13 are all arranged on the base and are adapted one by one, that is, the power output shaft of a first motor 12 is connected to the power output shaft of a liquid pump 13 through a coupling and other devices, and then the liquid pump 13 is controlled to work under the action of the first motor 12, which provides convenience for pumping the cleaning liquid to clean the forming network.

[0047] like Figure 2 As shown, in addition, the liquid inlet ends of the two liquid pumps 13 are connected to a liquid inlet pipe 15, and the liquid outlet ends are connected to a liquid outlet pipe 16. The first control valve 14 and the second control valve 17 are respectively arranged near the two liquid pumps 13, that is, the first control valve 14 and the second control valve 17 cooperate to control the smoothness of the two liquid circulation channels, so as to facilitate the staggered operation of the two liquid pumps 13, realize one backup and one use, and reduce the impact of maintenance on the papermaking machine. In addition, a liquid infusion pipe 18 is arranged at the end of the liquid outlet pipe 16, and the end of the liquid infusion pipe 18 extends to the cleaning component 3, so as to realize the pumping of the cleaning liquid and facilitate the cleaning of the forming net. In order to monitor the flow and pressure of the cleaning liquid, a pressure gauge, a flow meter, etc. can also be arranged on the liquid inlet pipe 15 and the liquid outlet pipe 16.

[0048] like Fig. 9 , Fig.10As shown, in order to achieve cleaning of the forming net through the cleaning component 3, the cleaning component 3 includes a beam 33, a guide rail 32, a transmission belt 31 and a cleaning mechanism 6. The guide rail 32 is adjustably arranged on the beam 33, the cleaning mechanism 6 is arranged on the side of the guide rail 32 away from the beam 33, the transmission belt 31 is tensioned between the beam 33 and the guide rail 32, and the cleaning mechanism 6 can be controlled to move along the circumference direction of the guide rail 32, that is, under the action of the transmission belt 31, the cleaning mechanism 6 is controlled to move in a circular motion along the length direction of the beam 33, thereby comprehensively cleaning the forming net.

[0049] like Fig.11 , Fig.15 As shown, in order to make the cleaning mechanism 6 stably and movably arranged on the guide rail 32, the guide rail 32 is set to an annular structure, and the cross section is set to a C-shaped structure. The cleaning mechanism 6 includes a cleaning head 67, a vertical plate 61, an upper wheel body 62, a lower wheel body 64 and a limiting ball 63. The upper wheel body 62, the limiting ball 63 and the lower wheel body 64 are arranged on the same side of the vertical plate 61 from top to bottom. The upper wheel body 62 and the lower wheel body 64 are installed on the guide rail 32, and the limiting ball 63 extends into the guide rail 32. Therefore, with the cooperation of the upper wheel body 62, the lower wheel body 64 and the limiting ball 63, the vertical plate 61 can be stably installed on the side of the guide rail 32, and it is convenient for the vertical plate 61 to move along the circumference direction of the guide rail 32. Because the cleaning head 67 can be adjusted and arranged on the side of the vertical plate 61, the cleaning head 67 moves synchronously during the movement of the vertical plate 61 along the guide rail 32. In addition, the cleaning head 67 is connected to the infusion tube 18. Therefore, when the cleaning head 67 moves back and forth along the lateral direction of the forming net, the cleaning liquid can be output from the cleaning head 67 under high pressure under the action of the pump station 1 to achieve cleaning of the forming net.

[0050] like Fig.11 As shown, in order to be able to quickly disassemble the vertical plate 61 according to needs, the guide rail 32 includes two main pipes 322 and two bent pipes 323. The two main pipes 322 are arranged in an upper and lower distribution, and the ends are provided with sleeve grooves 324. The two bent pipes 323 are arranged at both ends of the two main pipes 322, and sleeve plates 321 are fixedly arranged at the ends. The sleeve plates 321 are connected and installed at the sleeve grooves 324 by bolts, thereby realizing the detachable connection between the main pipe 322 and the bent pipe 323. The end faces of the main pipe 322 and the bent pipe 323 are both set as C-shaped structures, so the limiting ball 63 extends into the inner side of the main pipe 322 or the bent pipe 323, and the upper wheel body 62 and the lower wheel body 64 are distributed on both sides of the main pipe 322 or the bent pipe 323, thereby making the vertical plate 61 stably installed.

[0051] like Fig.10As shown, in order to control the movement of the cleaning head 67, the transmission belt 31 is connected to the central axis of the upper wheel body 62 or the lower wheel body 64, and pulleys 311 are provided at both ends of the inner side. The central axis of the pulley 311 passes through the crossbeam 33, and the central axis of a certain pulley 311 is connected to the second motor 312. Therefore, under the action of the second motor 312, the transmission belt 31 can be controlled to rotate, thereby driving the vertical plate 61 and the cleaning head 67 to move. The transmission belt 31 here can be set as a synchronous belt, and the pulley 311 can be set as a synchronous pulley, and the synchronization of the transmission belt 31 and the pulley 311 is achieved by using the tooth shape of the synchronous belt and the tooth groove on the synchronous pulley. The transmission belt 31 can also be replaced with a chain, and the pulley 311 can be replaced with a sprocket, etc.

[0052] like Fig.16 As shown, in order to adjust the inclination angle of the cleaning head 67 according to the cleaning requirements, a clamping hoop 671 is sleeved on the cleaning head 67, and a self-adjusting plate 65 is arranged on the side. The side of the self-adjusting plate 65 is fixedly provided with a convex plate and a clamping plate 651, and a slot 653 is arranged on the side wall. The clamping plate 652 at the end of the clamping plate 651 is installed in the slot 653, so that the clamping plate 651 is connected to the self-adjusting plate 65. The ear plate of the clamping hoop 671 extends between the clamping plate 651 and the convex plate, and the end of the fastening bolt 654 provided through the ear plate and the convex plate is threadedly inserted into the clamping plate 651. Therefore, under the action of the fastening bolt 654, the clamping plate 651 can cooperate with the convex plate to force the ear plate to be stably placed, so that the cleaning head 67 can be stably placed at a corresponding inclination angle, which provides convenience for cleaning the forming net, and at the same time, it provides convenience for removing the restriction of the cleaning head 67 and adjusting its inclination angle according to the needs.

[0053] like Fig.10 , Fig.12 As shown, in order to enable the guide rail 32 to be stably installed on the beam 33 and to adjust the state of the guide rail 32 to adapt it to the cleaning requirements of the forming net, a connecting frame 7 is connected to the side of the guide rail 32, and the connecting frame 7 includes a plate 71 and a fixed plate 72. The plate 71 and the fixed plate 72 are respectively connected to the two main pipes 322 and the beam 33, and the first connecting pipe 711 and the second connecting pipe 721 are respectively arranged on the side walls close to each other. The second connecting pipe 721 is hingedly arranged between the two first connecting pipes 711 through a central axis, bearings, etc., so as to realize the adjustable connection between the plate 71 and the fixed plate 72.

[0054] like Fig.13 , Fig.14As shown, in order to control the adjustment state of the plate 71 to be stably set relative to the fixed plate 72, a lifting hole 722 is provided on the second connecting pipe 721, and a lifting rod 723 is provided through the lifting hole 722. The middle thread of the lifting rod 723 is provided with an adjusting screw 724, and the end of the adjusting screw 724 is connected through the second connecting pipe 721 through a bearing connection. When the adjusting screw 724 is rotated, the lifting rod 723 can be controlled to rise and fall to adjust its position. An end column 725 is fixedly provided at the end of the lifting rod 723. A plurality of grooves 712 are provided on the edge of the first connecting pipe 711. The end column 725 extends into a groove 712, and the plate 71 can be controlled to be stably connected relative to the fixed plate 72. When the end column 725 is separated from the groove 712, the restriction of the plate 71 and the fixed plate 72 can be released, which provides convenience for adjusting the inclination state of the guide rail 32 and adapting to different installation environments and the cleaning requirements of the forming net.

[0055] like Fig.16 As shown, in order to prevent the cleaning head 67 from flipping over due to the circular movement of the vertical plate 61, a connecting frame 68 is provided on the top of the self-adjusting plate 65. The connecting frame 68 is sleeved on the convex shaft of the vertical plate 61 through a bearing connection, and a counterweight column 66 is provided at the bottom of the self-adjusting plate 65. Under the action of the counterweight column 66, the self-adjusting plate 65 can be controlled to always be in a vertical state, thereby keeping the cleaning head 67 in a stable state, which facilitates the cleaning of the forming network.

[0056] In order to control the operation of the motor, a control box 11 is provided at the pump station 1. The control box 11 may be provided with a controller (such as a PLC, MCU), a relay, a contactor, a switching power supply, a terminal block, a fuse, a circuit breaker, a transformer, etc., and the number is determined according to actual needs. A touch screen, an indicator light, and a button may be provided on the front side of the control box 11. The connection method of each of the above devices has been disclosed, such as being connected by a wire. The connection method of the motor and the control box 11 has also been disclosed. For example, if the motor is a DC motor, the positive and negative power lines of the motor are connected to the positive and negative DC output terminals of the switching power supply in the control box. If the motor is a three-phase AC motor, the power supply is generally directly introduced from a three-phase power supply (such as 380VAC), but it can also be connected after appropriate voltage conversion through a transformer and other equipment in the control box. Fuses and circuit breakers can also be connected in series on the power supply line of the motor. If the motor power is small (such as a low-power DC motor or a single-phase AC motor), a relay can be used to control the power on and off of the motor. The normally open contacts of the relay are connected in series in the power supply line of the motor. When the controller (such as PLC or MCU) outputs a control signal to energize the relay coil, the normally open contact of the relay closes and the motor is powered on and runs; when the control signal disappears, the relay coil is powered off, the normally open contact is disconnected, and the motor stops. For high-power motors (such as three-phase AC motors), contactors are required. The main contacts of the contactor are connected in series in the power supply circuit of the motor, and the control method is similar to that of the relay. When the contactor coil is energized, the main contacts are closed and the motor starts. In actual manufacturing, the model of the motor can be selected according to demand, for example, the second motor 312 can be set to a stepper motor, the first motor 12 can be set to an asynchronous motor, etc.

[0057] The connection method of the pressure gauge, flow meter and control box 11 has also been disclosed. For example, if the pressure gauge is a type with a pressure sensor, and the sensor outputs an analog signal (such as a 4-20mA current signal or a 0-10V voltage signal), the signal output terminal can be connected to the analog input port of the controller in the control box through a shielded cable. For a flow meter that outputs an analog signal, a shielded cable can be used to connect the signal output terminal to the control box. If it is a pulse signal, the pulse output pin of the flow meter can be connected to the high-speed counter input port of the controller in the control box (if it is a PLC, many models have a high-speed counter function for processing pulse signals), or connected to an intermediate module that can count and process pulses (such as a signal conditioning module with a counter function). If it is a voltage signal, similar to the analog signal connection method of the pressure gauge, the signal output terminal of the flow meter is connected to the analog input port of the controller, and attention is paid to whether the signal range meets the requirements of the controller.

[0058] In short, the control box 11 controls the cleaning device to complete the cleaning process of the forming net.

[0059] Example 2

[0060] like Figure 1 , Figure 6-8 As shown, on the basis of Example 1, the above-mentioned crossbeam 33 can be directly installed on the papermaking machine, or a bracket 2 can be arranged below the cleaning component 3, the bracket 2 is arranged in an L-shaped structure, and a first top plate 21 and a second top plate 22 are arranged above, the first top plate 21 and the second top plate 22 are adjustably connected through a connecting mechanism 5, and a plug plate 23 is arranged below the second top plate 22, and the plug plate 23 is connected and inserted into the bracket 2 by bolts, and the position of the cleaning component 3 can be adjusted by adjusting the length of the plug plate 23 inserted into the bracket 2, so as to adapt it to the cleaning needs of the forming net. Whether to install a walking wheel below the bracket 2 can be determined according to the needs.

[0061] In order to adjust the position of the adjacent cleaning components 3 by the connecting mechanism 5, the connecting mechanism 5 includes a first frame 51 and a second frame 52, and the first frame 51 and the second frame 52 are respectively mounted on the first top plate 21 and the second top plate 22 by bolts. A snap plate 53 and a snap groove 54 are respectively arranged on the first frame 51 and the second frame 52, and the first frame 51 is inserted into the second frame 52, and the snap plate 53 is installed in the snap groove 54, so that the first frame 51 and the second frame 52 are stable and adjustable. In order to control the first frame 51 and the second frame 52 to remain relatively stable, a bidirectional screw 56 is provided above the end of the first frame 51 through a bearing connection, and a pressing plate 55 is respectively threadedly sleeved at both ends of the bidirectional screw 56, and the pressing plate 55 presses the side of the second frame 52, thereby increasing the resistance to the relative movement of the first frame 51 and the second frame 52, and realizing the stable installation of the first frame 51 and the second frame 52.

[0062] Example 3

[0063] like Figure 2-5As shown, on the basis of embodiment 1 or 2, in order to prevent the impurities contained in the cleaning liquid from clogging the cleaning head 67, a filter assembly 4 is provided at the liquid inlet end of the pump station 1, and the filter mechanism 43 also includes an upper sealing shell 41, a lower sealing shell 44, two end plates 42 and multiple sets of filter mechanisms 43. The central angles of the upper sealing shell 41 and the lower sealing shell 44 are both set to 180°, and are connected by bolts, and a sealing gasket is provided at the intersection, so that a sealed pipe structure can be spliced. The two end plates 42 are arranged in parallel, and the end faces close to each other are provided with an annular plate 421, the annular plate 421 is inserted into the space formed by the upper sealing shell 41 and the lower sealing shell 44, and a sealing gasket is provided at the intersection, and the end faces of the two end plates 42 that are far away from each other are provided with flanges, and the flanges are installed at the end of the liquid inlet pipe 15 by bolts, so that the upper sealing shell 41, the lower sealing shell 44, and the end plate 42 can cooperate to form a channel for the circulation of the cleaning liquid. In the circulation channel, multiple sets of filter mechanisms 43 are connected end to end, and each set of filter mechanisms 43 includes filter cotton 434. Impurities in the cleaning liquid can be removed by the filter cotton 434. Therefore, multiple filter cottons 434 are provided to achieve deep filtration of the cleaning liquid.

[0064] In order to ensure stable installation of the filter cotton 434 and facilitate removal according to needs, the filter cotton 434 is arranged in the support tube 431. A notch 433 is arranged at one end of the support tube 431 away from the liquid inlet pipe 15, and a grid 432 is arranged at one end near the liquid inlet pipe 15 to provide support for the filter cotton 434 and facilitate the staff to pull the support tube 431 to remove the filter mechanism 43. Multiple support tubes 431 are arranged end to end, and the outer diameter is equal to the outer diameter of the annular plate 421, and the support tube 431 is in contact with the annular plate 421.

[0065] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0066] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An automatic cleaning device for a paper machine forming wire, characterized in that: The invention comprises a pump station (1), wherein a filter assembly (4) is arranged at a liquid inlet end of the pump station (1); the filter assembly (4) comprises a plurality of sets of detachable filter mechanisms (43), wherein the plurality of sets of the filter mechanisms (43) are sequentially distributed along the direction of the water flow, and each set of the filter mechanisms (43) comprises filter cotton (434); the invention also comprises a cleaning assembly (3), wherein the cleaning assembly (3) comprises a crossbeam (33), a guide rail (32), a transmission belt (31) and a cleaning mechanism (6), wherein the guide rail (32) is adjustably arranged on the crossbeam (33), the cleaning mechanism (6) is arranged on a side of the guide rail (32) away from the crossbeam (33), the transmission belt (31) is arranged between the crossbeam (33) and the guide rail (32), and the cleaning mechanism (6) can be controlled to move along the circumference direction of the guide rail (32); the cleaning mechanism (6) comprises an adjustable cleaning head (67), and the cleaning head (67) is connected to the liquid outlet end of the pump station (1).

2. The automatic cleaning device for a paper machine forming wire according to claim 1, characterized in that: The pump station (1) comprises two liquid pumps (13), the liquid inlet ends of the two liquid pumps (13) are connected to a liquid inlet pipe (15), and the liquid outlet ends are connected to a liquid outlet pipe (16), and a first control valve (14) and a second control valve (17) are respectively arranged on the liquid inlet pipe (15) and the liquid outlet pipe (16) near the two liquid pumps (13).

3. The automatic cleaning device for a paper machine forming wire according to claim 2, characterized in that: A first motor (12) is arranged on the side of each of the two liquid pumps (13); an output shaft of the first motor (12) is connected to a power input shaft of the liquid pump (13) via a coupling; a liquid infusion tube (18) is arranged at the end of the liquid outlet tube (16); and the end of the liquid infusion tube (18) extends to the cleaning assembly (3).

4. The automatic cleaning device for a paper machine forming wire according to claim 2, characterized in that: The filtering mechanism (43) further comprises an upper sealing shell (41), a lower sealing shell (44) and two end plates (42); the central angles of the upper sealing shell (41) and the lower sealing shell (44) are both set to 180° and are connected by bolts; the two end plates (42) are arranged in parallel, and the end faces close to each other are both provided with an annular plate (421), while the end faces far away from each other are provided with a flange; the annular plate (421) is sealingly inserted into the space formed by the upper sealing shell (41) and the lower sealing shell (44); and the flange is installed at the end of the liquid inlet pipe (15) by bolts.

5. The automatic cleaning device for a paper machine forming wire according to claim 4, characterized in that: The filter cotton (434) is arranged in the support tube (431); a notch (433) is arranged at one end of the support tube (431) away from the liquid inlet tube (15), and a grid (432) is arranged at one end adjacent to the liquid inlet tube (15); a plurality of the support tubes (431) are connected end to end, and the outer diameter is equal to the outer diameter of the annular plate (421); and the support tubes (431) are in contact with the annular plate (421).

6. The automatic cleaning device for a paper machine forming wire according to claim 1, characterized in that: The guide rail (32) comprises two main pipes (322) and two bent pipes (323); the two main pipes (322) are arranged vertically and distributed, and sleeve grooves (324) are arranged at the ends; the two bent pipes (323) are arranged at both ends of the two main pipes (322), and sleeve plates (321) are fixedly arranged at the ends; the sleeve plates (321) are installed at the sleeve grooves (324); the end faces of the main pipes (322) and the bent pipes (323) are both arranged in a C-shaped structure.

7. The automatic cleaning device for a paper machine forming wire according to claim 6, characterized in that: A connecting frame (7) is connected to the sides of the two main pipes (322), and the connecting frame (7) includes a plate (71) and a fixing plate (72). The plate (71) and the fixing plate (72) are connected to the main pipes (322) and the crossbeam (33) respectively, and a first connecting pipe (711) and a second connecting pipe (721) are respectively arranged on the side walls close to each other, and the second connecting pipe (721) is hingedly arranged between the two first connecting pipes (711); a connecting pipe (721) is arranged on the second connecting pipe (721) A lifting hole (722) is provided, and a lifting rod (723) is arranged through the lifting hole (722). An adjusting screw (724) is arranged through the middle thread of the lifting rod (723), and an end column (725) is fixedly arranged at the end. The end of the adjusting screw (724) is connected through a bearing and passes through the second connecting tube (721); a plurality of grooves (712) are arranged on the edge of the first connecting tube (711), and the end column (725) extends into a groove (712).

8. The automatic cleaning device for a paper machine forming wire according to claim 7, characterized in that: The cleaning mechanism (6) further comprises a vertical plate (61), an upper wheel body (62), a lower wheel body (64) and a limiting ball (63); the upper wheel body (62), the limiting ball (63) and the lower wheel body (64) are arranged in sequence from top to bottom on the same side of the vertical plate (61); the upper wheel body (62) and the lower wheel body (64) are distributed on the upper and lower sides of the main pipe (322); the limiting ball (63) extends into the main pipe (322); the transmission belt (31) is connected to the central axis of the upper wheel body (62) or the lower wheel body (64), and pulleys (311) are arranged at both ends of the inner side; the central axis of the pulley (311) passes through the cross beam (33); the central axis of one of the pulleys (311) is connected to the second motor (312).

9. The automatic cleaning device for a paper machine forming wire according to claim 8, characterized in that: A clamp (671) is sleeved on the cleaning head (67), and a self-adjusting plate (65) is arranged on the side. A convex plate and a clamping plate (651) are fixedly arranged on the side of the self-adjusting plate (65), and a slot (653) is arranged on the side wall. The clamping plate (652) at the end of the clamping plate (651) is installed in the slot (653). The ear plate of the clamp (671) extends between the clamping plate (651) and the convex plate. The end of the fastening bolt (654) that passes through the ear plate and the convex plate is threadedly inserted into the clamping plate (651). The bottom of the self-adjusting plate (65) is connected by bolts and inserted into the connecting hole (661) of the counterweight column (66). A connecting frame (68) is arranged on the top of the self-adjusting plate (65). The connecting frame (68) is sleeved on the convex shaft of the vertical plate (61) through a bearing connection.

10. The automatic cleaning device for a paper machine forming wire according to claim 1, characterized in that: A bracket (2) may be arranged below the cleaning component (3), the bracket (2) being arranged in an L-shaped structure, and a first top plate (21) and a second top plate (22) being arranged above the bracket, the first top plate (21) and the second top plate (22) being adjustably connected via a connecting mechanism (5), and an insert plate (23) being arranged below the second top plate (22), the insert plate (23) being connected via bolts and inserted into the bracket (2).

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