A filter cloth rectifying device for filter machine

Abstract

The utility model discloses a filter cloth deviation rectifying device of filter, including frame, be provided with the filter cloth of circulating delivery on the frame, the lower surface position of filter cloth is provided with the deviation rectifying roller, both ends of deviation rectifying roller all are provided with deviation rectifying subassembly, and the detection subassembly is symmetrically arranged to filter cloth both sides, wherein, along the direction of filter cloth's delivery, detection subassembly is located deviation rectifying subassembly's back, deviation rectifying subassembly includes bottom plate, and the both ends of bottom plate are provided with left baffle and right baffle respectively, and the sliding seat is slidably arranged on the bottom plate, and left gasbag is arranged between the sliding seat and left baffle, and right gasbag is arranged between the sliding seat and right baffle. The filter cloth deviation rectifying device of the utility model can correct the deviation of filter cloth in time, and the deviation rectifying speed is fast and the cost is low, and the deviation rectifying process does not need manual participation, and the labor burden of staff is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vacuum filter machine supporting equipment, specifically to a filter cloth correction device for a filter machine. Background Technology

[0002] When a belt vacuum filter is working, it separates solids and liquids through the filtration effect of the filter cloth. At the same time, the solids are carried out by the movement of the filter cloth. However, due to the precision of mechanical manufacturing and installation, the filter cloth often shifts during the movement of the filter cloth. This shift will affect the normal operation of the machine and seriously affect the normal production of the filter.

[0003] To prevent filter cloth misalignment, a correction device is necessary. Existing filter cloth correction devices in filter machines all use belt conveyor systems, relying primarily on belt rollers to ensure the belt remains centered within the frame. Misalignment is corrected manually by adjusting the tail pulley screw. The belt then drives the filter cloth to maintain its alignment. This correction process requires intermittent manual intervention, increasing the workload of maintenance personnel. Furthermore, manual intervention is slow and cannot promptly correct misalignment, potentially causing the filter cloth to tear from the machine frame and even leading to machine downtime. Therefore, we propose a new filter cloth correction device for filter machines. Summary of the Invention

[0004] To address the problems of existing filter cloth deviation correction devices, which all use belt conveyors and require intermittent manual intervention to adjust deviations, and whose slow response time prevents timely correction, this invention proposes a filter cloth deviation correction device. This device inflates and deflates the left and right air bladders, thereby moving the sliding seat on the base plate and causing the correction roller to move along the base plate. This causes the correction roller to deflect at a certain angle away from the direction of filter cloth deviation, correcting the filter cloth's trajectory and achieving deviation correction. The correction process requires no manual intervention, corrects filter cloth deviations promptly, has a fast response time, and is cost-effective.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A filter cloth correction device for a filter press includes a frame on which a filter cloth is circulated and conveyed. A correction roller is positioned on the lower surface of the filter cloth, and correction components are located at both ends of the correction roller. Detection components are symmetrically arranged on both sides of the filter cloth. The detection components are located behind the correction components along the filter cloth's conveying direction. Each correction component includes a base plate with a left baffle and a right baffle at its ends. A sliding seat is slidably mounted on the base plate. A left airbag is positioned between the sliding seat and the left baffle, and a right airbag is positioned between the sliding seat and the right baffle. By inflating and deflating the left and right airbags, the sliding seat is moved on the base plate, adjusting the position of the correction roller. This causes the correction roller to deflect at a certain angle away from the filter cloth's deviation direction, completing one correction operation.

[0007] Furthermore, the sliding seat is a U-shaped seat, and a horizontal plate is provided on the sliding seat. A bearing seat is provided on the horizontal plate, and a bearing is provided inside the bearing seat. The bearing is connected to the end of the straightening roller.

[0008] Furthermore, the detection component includes a column mounted on a frame, on which a photoelectric switch is installed above the filter cloth. A reflector is positioned directly below the photoelectric switch on the column, and the reflector is located below the filter cloth. The reflector is positioned on the frame to receive the light beam emitted by the photoelectric switch.

[0009] Furthermore, limit plates are provided on both sides of the sliding seat.

[0010] Furthermore, a protective plate is provided on the frame, the protective plate is an n-shaped plate, and the correction component is located inside the protective plate.

[0011] Furthermore, the left and right airbags are each connected to an air source via a compressed air pipe. One of the compressed air pipes passes through the protective plate and the left baffle in sequence to connect to the left airbag, and the other compressed air pipe passes through the protective plate and the right baffle in sequence to connect to the right airbag. By connecting the air source to the left or right airbag via the compressed air pipes, compressed air is introduced into the left or right airbag, thereby enabling the inflation and deflation of the left or right airbag.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] The filter cloth correction device provided by this utility model blocks the light emitted by the photoelectric switch on the offset side of the filter cloth when the filter cloth deviates to one side. This prevents the reflector from reflecting the light back to the photoelectric switch. When the photoelectric switch does not receive the light reflected back from the reflector, it generates a switching signal. This signal is transmitted to the PLC controller. The PLC controller controls the opening and closing of the solenoid valve according to the signal. The solenoid valve controls the on and off of the compressed air pipe, inflating and deflating the left and right air bladders respectively. This, in turn, pushes the sliding seat to move on the base plate, thereby moving the correction roller on the base plate and correcting the running trajectory of the filter cloth, thus achieving correction. The correction process does not require manual intervention, can correct filter cloth deviation in a timely manner, has a fast correction response speed, and is low in cost. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a filter cloth correction device for a filter machine according to the present invention;

[0015] Figure 2 This is a schematic diagram of the correction component in a filter cloth correction device for a filter machine according to the present invention.

[0016] Figure 3 This utility model relates to a filter cloth correction device for a filter machine. Figure 1 Sectional view at point AA;

[0017] Figure 4 This is a schematic diagram of the detection component in a filter cloth correction device for a filter machine according to the present invention.

[0018] The numbers in the attached diagram are:

[0019] 1. Frame; 2. Filter cloth; 3. Straightening roller; 4. Base plate; 5. Left baffle; 6. Right baffle; 7. Sliding seat; 8. Left airbag; 9. Right airbag; 10. Horizontal plate; 11. Bearing seat; 12. Bearing; 13. Column; 14. Photoelectric switch; 15. Reflector; 16. Limit plate; 17. Protective plate; 18. Compressed air pipe; 19. PLC controller; 20. Solenoid valve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1-4As shown, this embodiment provides a filter cloth correction device for a filter press, including a frame 1, on which a filter cloth 2 is circulated and conveyed. A correction roller 3 is provided on the lower surface of the filter cloth 2, and correction components are provided at both ends of the correction roller 3. Detection components are symmetrically arranged on both sides of the filter cloth 2. The detection components are located behind the correction components along the conveying direction of the filter cloth 2. The correction components include a base plate 4, with a left baffle 5 and a right baffle 6 respectively provided at both ends of the base plate 4. A sliding seat 7 is slidably arranged on the base plate 4. A left airbag 8 is arranged between the sliding seat 7 and the left baffle 5, and a right airbag 9 is arranged between the sliding seat 7 and the right baffle 6. During operation, when the filter cloth 2 deviates from its designated path, it triggers the detection component on the deviated side. After the detection component is triggered, it transmits the signal to the control system, which then controls the opening and closing of the compressed air pipe 18 to inflate and deflate the left airbag 8 and the right airbag 9 respectively. This, in turn, pushes the sliding seat 7 to move on the base plate 4 to adjust the position of the correction roller 3, correct the running trajectory of the filter cloth 2, and complete one correction operation.

[0022] Please refer to this again. Figure 2 The sliding seat 7 is a U-shaped seat, and a horizontal plate is provided on the sliding seat 7. A bearing seat 11 is provided on the horizontal plate, and a bearing 12 is provided inside the bearing seat 11. The bearing 12 is connected to the end of the straightening roller 3.

[0023] Please refer to this again. Figure 4 The detection assembly includes a column 13 mounted on a frame 1. A photoelectric switch 14 is mounted on the column 13, located on the upper part of the filter cloth 2. A reflector 15 is mounted directly below the photoelectric switch 14 on the column 13, and the reflector 15 is located at the lower part of the filter cloth 2. The reflector 15 is positioned on the frame 1 to receive the light beam emitted by the photoelectric switch 14.

[0024] It should be noted that the emitted beam generated by the photoelectric switch 14 can directly illuminate the reflector 15, and after being further reflected by the reflector 15, it can be received by the photoelectric switch 14 again.

[0025] In this embodiment, limiting plates 16 are provided on both sides of the sliding seat 7. Under the limiting action of the limiting plates 16, the sliding seat 7 can slide along the length direction of the base plate 4.

[0026] In addition, a protective plate 17 is provided on the frame 1. The protective plate 17 is an n-shaped plate, and the correction assembly is located inside the protective plate 17. By providing the protective plate 17, the internal correction assembly is protected.

[0027] In this invention, the left airbag 8 and the right airbag 9 are each connected to an air source via a compressed air pipe 18. One compressed air pipe 18 passes sequentially through the protective plate 17 and the left baffle 5 to connect to the left airbag 8, and the other compressed air pipe 18 passes sequentially through the protective plate 17 and the right baffle 6 to connect to the right airbag 9. By connecting the air source to the left airbag 8 or the right airbag 9 via the compressed air pipe 18, compressed air is introduced into the left airbag 8 or the right airbag 9, thereby realizing the inflation and deflation operation of the left airbag 8 or the right airbag 9.

[0028] It is worth mentioning that the control system in this utility model includes a PLC controller 19 and a solenoid valve 20. Specifically, the input interface of the solenoid valve 20 is connected to an air source, and the output interface of the solenoid valve 20 is connected to the left airbag 8 and the right airbag 9 respectively through a compressed air pipe 18. The PLC controller 19 receives the signal from the photoelectric switch 14 and controls the opening and closing of the solenoid valve 20. The solenoid valve 20 controls the opening and closing of the compressed air pipe 18 to regulate the inflation and deflation of the left airbag 8 or the right airbag 9.

[0029] The working principle of this utility model is as follows:

[0030] When the filter cloth 2 deviates to one side, it blocks the light emitted by the photoelectric switch 14 on the side of the filter cloth 2 that is deviated from the reflector 15, preventing the reflector 15 from reflecting the light back to the photoelectric switch 14. Since the photoelectric switch 14 does not receive the light reflected back from the reflector 15, it generates a switching signal. This signal is transmitted to the PLC controller 19. The PLC controller 19 controls the opening and closing of the solenoid valve 20 according to the above signal. The solenoid valve 20 controls the opening and closing of the compressed air pipe 18, inflating and deflating the left airbag 8 and the right airbag 9 respectively. This pushes the sliding seat 7 to move on the base plate 4, thereby driving the correction roller 3 to move on the base plate 4. This causes the correction roller 3 to deflect at a certain angle to the side opposite to the direction of the filter cloth 2's deviation, correcting the running trajectory of the filter cloth 2 and achieving deviation correction.

[0031] In summary, the above-mentioned correction process does not require manual intervention, reducing the workload of staff. The filter cloth correction device of this utility model can correct filter cloth deviation in a timely manner, with fast correction speed and low cost.

[0032] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A filter cloth correction device for a filter press, comprising a frame (1), wherein a filter cloth (2) is disposed on the frame (1) and circulatedly conveyed, characterized in that, A correction roller (3) is provided on the lower surface of the filter cloth (2). Correction components are provided at both ends of the correction roller (3). Detection components are symmetrically arranged on both sides of the filter cloth (2). The detection components are located behind the correction components along the conveying direction of the filter cloth (2). The correction components include a base plate (4). A left baffle (5) and a right baffle (6) are provided at both ends of the base plate (4). A sliding seat (7) is slidably arranged on the base plate (4). A left airbag (8) is arranged between the sliding seat (7) and the left baffle (5). A right airbag (9) is arranged between the sliding seat (7) and the right baffle (6).

2. The filter cloth correction device for a filter press according to claim 1, characterized in that, The sliding seat (7) is a U-shaped seat. A horizontal plate is provided on the sliding seat (7). A bearing seat (11) is provided on the horizontal plate. A bearing (12) is provided inside the bearing seat (11). The bearing (12) is connected to the end of the correction roller (3).

3. The filter cloth correction device for a filter press according to claim 1, characterized in that, The detection component includes a column (13) mounted on a frame (1), a photoelectric switch (14) mounted on the column (13) located on the upper part of the filter cloth (2), and a reflector (15) mounted on the column (13) directly below the photoelectric switch (14), the reflector (15) located on the lower part of the filter cloth (2).

4. The filter cloth correction device for a filter press according to claim 1, characterized in that, Limiting plates (16) are provided on both sides of the sliding seat (7).

5. The filter cloth correction device for a filter press according to claim 1, characterized in that, The frame (1) is provided with a protective plate (17), which is an n-shaped plate, and the correction component is located inside the protective plate (17).

6. A filter cloth correction device for a filter press according to claim 5, characterized in that, The left airbag (8) and the right airbag (9) are respectively connected to the air source through a compressed air pipe (18). One of the compressed air pipes (18) passes through the protective plate (17) and the left baffle (5) in sequence to connect to the left airbag (8), and the other compressed air pipe (18) passes through the protective plate (17) and the right baffle (6) in sequence to connect to the right airbag (9).

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