A device for winding and unwinding filter cloth

Abstract

The utility model discloses a kind of device of winding and unwinding filter cloth, belong to environmental protection technical field.It includes two filter cloth operating structures, filter cloth operating structure includes base, winding shaft, swing arm, tension controller, fixed arm, driving roller, driving motor and rotary cylinder;Swing arm is vertically arranged, and its lower end is hinged in the rear portion of base;Fixed arm is vertically arranged, and its lower end is fixed in the front portion of base;Winding shaft is located in the upper portion of swing arm, and tension controller is located on swing arm and it is connected with the end portion of winding shaft, and driving motor is located on fixed arm;Driving roller is vertically arranged, and it is located in the upper portion of fixed arm, and it is drivingly connected with driving motor;Rotary cylinder is located between swing arm and fixed arm or base, and it is used for rotating swing arm forward;When cloth is stacked in cloth stacking machine, swing arm is vertically arranged, filter cloth roll is located in the rear of driving roller, and driving motor does not work;When discharging in cloth stacking machine, swing arm rotates forward, filter cloth roll abuts against the rear side of driving roller, and two driving motors work synchronously.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection technology, and specifically relates to a device for winding and unwinding filter cloth for use in a stacked filter press. Background Technology

[0002] Wastewater treatment methods utilize physical, chemical, and biological methods to purify wastewater, reduce pollution, and ultimately achieve wastewater recycling and reuse, making full use of water resources. Urban domestic sewage mainly originates from a range of urban public places and facilities, including households, schools, and businesses. The pollutants in urban domestic sewage are diverse, but in terms of their main content, they are predominantly organic matter, with starch, protein, sugars, mineral oil, and other household waste being the most abundant components.

[0003] Wastewater treatment generates a large amount of sludge, which typically has a water content of over 80% and contains a significant amount of organic matter. In current technologies, to effectively treat and utilize sludge for environmental purposes, turning waste into treasure and resources, dewatering the sludge and minimizing its water content is crucial. Mechanical dewatering is one of the most commonly used and fastest dewatering techniques. Common mechanical equipment used for dewatering includes belt filter presses, plate and frame filter presses, screw presses, centrifugal dewatering machines, vacuum suction filters, and multi-layer vertical filter presses.

[0004] For example, patent application number CN202111286939.5 discloses a filter press, including a cloth stacking device, a filter press frame structure, and a filter press device. The filter press frame structure includes a filter press frame that can move between a filter press station and a material preparation station, and a base plate disposed within the filter press frame. The filter press device includes a base, a main oil cylinder, and a pressure plate driven by the main oil cylinder to press the filter cloth located within the filter press frame. The filter cloth includes an upper filter cloth and a lower filter cloth. The cloth stacking device includes: a frame, an upper filter cloth operating mechanism, a lower filter cloth operating mechanism, a sludge discharge mechanism, a sludge separating and pressing mechanism, a pressing roller, and a cloth stacking and feeding mechanism. The lower filter cloth is movably laid on the frame. The sludge discharge mechanism discharges sludge onto the lower filter cloth; the upper filter cloth operating mechanism is mounted on the frame, and includes a first cloth winding mechanism, a first winding and deviation measuring mechanism, and a first filter cloth correction mechanism arranged sequentially. The first cloth winding mechanism includes a winding roller that can move along its own axis and rotate around its own axis. The upper filter cloth is wound around the winding roller of the first cloth winding mechanism. The first winding and deviation measuring mechanism detects whether the upper filter cloth is misaligned. The winding roller of the first cloth winding mechanism adjusts its position by moving along its own axis according to the detection result of the first winding and deviation measuring mechanism. The first filter cloth correction mechanism corrects the deviation of the upper filter cloth. The lower filter cloth operating mechanism... The filter cloth operating mechanism, mounted on the frame, includes a second cloth winding mechanism, a second feeding and correction mechanism, and a second filter cloth correction mechanism arranged sequentially. The second cloth winding mechanism includes a winding roller that can move along its own axial direction and rotate around its own axis. The filter cloth is wound around the winding roller of the second cloth winding mechanism. The second feeding and correction mechanism detects whether the filter cloth is misaligned. The winding roller of the second cloth winding mechanism adjusts its position by moving along its own axial direction according to the detection result of the first feeding and correction mechanism. The second filter cloth correction mechanism corrects the misalignment of the filter cloth. The sludge separating and pressing mechanism is mounted on the frame and located after the sludge discharge mechanism. The structure includes a pressing plate disposed on the frame, the pressing plate having a horizontally arranged pressing part, the length of the pressing plate being at least equal to the width of the lower filter cloth; a pressing roller disposed on the frame and located after the sludge separating and pressing mechanism, the setting height of the pressing roller being adjustable, and the axis of the pressing roller being perpendicular to the moving direction of the lower filter cloth; the upper filter cloth, after passing through the first feeding and measuring mechanism and the first filter cloth correction mechanism, is laid on the lower filter cloth and passes under the pressing roller together with the lower filter cloth; the stacking and feeding mechanism is horizontally movable and disposed on the frame and located at one end of the frame, for transporting sludge bags formed by the upper and lower filter cloths wrapping the sludge.

[0005] The device uses an upper filter cloth operating mechanism and a lower filter cloth operating mechanism to respectively wind or unwind the upper and lower filter cloths. Taking the upper filter cloth operating mechanism as an example, the first feeding and measuring machine conveys the upper filter cloth through a roller structure (one of which is driven by a conveying motor), and the first winding mechanism winds the upper filter cloth through a winding roller (driven by a winding motor). During the winding process, the filter cloth roll on the winding roller gradually increases in size. In order to ensure a constant winding speed of the upper filter cloth and match the conveying speed of the roller structure, the rotation speed of the winding motor must gradually decrease and match the speed of the upper filter cloth, which is quite difficult (the speeds of the upper and lower filter cloth operating mechanisms must also be the same). Utility Model Content

[0006] To address the aforementioned problems, this utility model provides a device for winding and unwinding filter cloth. The filter cloth roll is driven to wind up by an active roller. Since the speed of the active roller is constant, the linear speed of the filter cloth roll is also constant. This facilitates speed control of the two filter cloth operating structures (as the speed of the drive motor is constant, controlling the rotational speed of the drive motor is sufficient) and makes synchronization easy. The technical solution is as follows: This utility model provides a device for winding and unwinding filter cloth. The device includes two filter cloth operating structures, which are respectively used to process an upper filter cloth 1 and a lower filter cloth 2. Each filter cloth operating structure includes a base and a winding shaft 8. The winding shaft 8 is arranged in a left-right direction and has a filter cloth roll mounted on it. The filter cloth operating structure also includes a swing arm 7, a tension controller, a fixed arm 9, a drive roller 10, a drive motor 11, and a rotary cylinder 12. The swing arm 7 is vertically arranged, and its lower end is hinged to the rear of the base. The fixed arm 9 is vertically arranged, and its lower end is fixed to the front of the base. The winding shaft 8 is located above the swing arm 7. A force controller is mounted on the swing arm 7 and connected to the end of the winding shaft 8. The drive motor 11 is mounted on the fixed arm 9. The drive roller 10 is arranged in the left-right direction and is located on the upper part of the fixed arm 9. It is connected to the drive motor 11 for transmission. The rotary cylinder 12 is located between the swing arm 7 and the fixed arm 9 or the base. It is used to rotate the swing arm 7 forward. When the fabric stacking machine 15 is feeding the fabric, the swing arm 7 is arranged vertically and the filter cloth roll is located behind the drive roller 10. The drive motor 11 is not working. When the fabric stacking machine 15 is discharging the fabric, the swing arm 7 rotates forward and the top of the filter cloth roll rests against the rear side of the drive roller 10. The two drive motors 11 work synchronously.

[0007] In this embodiment of the utility model, the base includes a mounting base 3, a slide rail 4 arranged on the mounting base 3 in the left-right direction, a slide block 5 slidably arranged on the slide rail 4, and a correction servo motor 6 between the mounting base 3 and the slide block 5 for driving the slide block 5 to move in the left-right direction. The mounting base 3 is fixed on the folding machine 15, the slide block 5 can slide in the left-right direction, the lower end of the swing arm 7 is hinged to the rear of the slide block 5, the lower end of the fixed arm 9 is fixed to the front of the slide block 5, and the rotary cylinder 12 is arranged between the swing arm 7 and the fixed arm 9 or the slide block 5.

[0008] Specifically, in this embodiment of the utility model, the slide block 5 is a rectangular frame arranged in the left-right direction, and there are two slide rails 4 arranged side by side. The front and rear ends of the bottom of the slide block 5 are respectively slidably mounted on the two slide rails 4. The correction servo motor 6 is arranged in the left-right direction and is located between the two slide rails 4.

[0009] In this embodiment of the invention, the swing arm 7 includes two rotating rods arranged side by side and moving synchronously; the fixed arm 9 includes two fixed rods arranged side by side; the winding shaft 8 is located between the two rotating rods and its left and right ends are respectively rotatably mounted on the upper part of the two rotating rods; the tension controller is mounted on the rotating rod; the drive roller 10 is located between the two fixed rods and its left and right ends are respectively rotatably mounted on the upper part of the two fixed rods; the drive motor 11 is mounted on one of the fixed rods; there are two rotary cylinders 12; the two rotary cylinders 12 are arranged side by side and driven synchronously, and are respectively connected to the two rotating rods.

[0010] Specifically, in this embodiment of the present invention, the rotary cylinder 12 is arranged obliquely upward from front to back, with the front end of its cylinder body hinged to the lower part of the fixed arm 9, and the rear end of its telescopic rod hinged to the middle part of the swing arm 7.

[0011] Preferably, for the filter cloth operating structure for processing the upper filter cloth 1: the filter cloth operating structure further includes a pressure roller 13; the pressure roller 13 is arranged in the left-right direction, is located at the upper end of the fixed arm 9, can move up and down, and is located on the upper side of the drive roller 10; when the fabric is spread by the fabric stacking machine 15, the pressure roller 13 rises away from the drive roller 10; when the fabric stacking machine 15 discharges material, the pressure roller 13 presses the upper filter cloth 1 against the top of the drive roller 10.

[0012] Furthermore, in this embodiment of the present invention, the top of the two fixed rods is provided with two lifting cylinders 14, the two lifting cylinders 14 are driven synchronously and set vertically downward, and the left and right ends of the pressure roller 13 are respectively located at the lower ends of the telescopic rods of the two lifting cylinders 14. In this embodiment of the present invention, the tension controller includes a tension gear and a winding gear. The winding gear is coaxially disposed at the end of the winding shaft 8. The tension gear is disposed in the left-right direction, on the swing arm 7, located below the winding gear, and its top meshes with the bottom of the winding gear.

[0013] In this embodiment of the invention, the filter cloth operation structure for processing the upper filter cloth 1 is located at the rear of the stacking machine 15 and above the conveying structure of the stacking machine 15, while the filter cloth operation structure for processing the lower filter cloth 2 is located at the front of the stacking machine 15 and below the conveying structure of the stacking machine 15. The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides a device for winding and unwinding filter cloth. The filter cloth roll is driven to wind by an active roller. Since the speed of the active roller is constant, the linear speed of the filter cloth roll is constant. Therefore, the speed of the two filter cloth operating structures is easy to control (the speed of the drive motor is constant, so the speed of the drive motor can be controlled) and easy to synchronize. At the same time, this filter cloth operating structure also facilitates the switching between winding and unwinding (through the rotation of the swing arm). In addition, compared with the prior art, there is no need to set up a roller conveying structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the fabric folding machine in an embodiment of this utility model; Figure 2 This is a schematic diagram of the filter cloth operation structure for processing the upper filter cloth; Figure 3 This is a schematic diagram of the filter cloth operation structure for processing the filter cloth. Figure 4 This is a top view of the filter cloth operation structure for processing the filter cloth.

[0015] In the diagram: 1 Upper filter cloth, 2 Lower filter cloth, 3 Mounting base, 4 Slide rail, 5 Slide seat, 6 Correction servo motor, 7 Swing arm, 8 Winding shaft, 9 Fixed arm, 10 Active roller, 11 Drive motor, 12 Rotary cylinder, 13 Pressure roller, 14 Lifting cylinder, 15 Fabric stacking machine. Detailed Implementation

[0016] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0017] Example 1 See Figures 1-4Example 1 provides a device for winding and unwinding filter cloth. The device includes two filter cloth operating structures, which are used to process (wind and unwind) the upper filter cloth 1 and the lower filter cloth 2, respectively. The filter cloth operating structure for processing the upper filter cloth 1 is located at the rear of the stacking machine 15 and above the conveying structure of the stacking machine 15. The filter cloth operating structure for processing the lower filter cloth 2 is located at the front of the stacking machine 15 and below the conveying structure of the stacking machine 15. The filter cloth operating structure also includes a base, a swing arm 7, a winding shaft 8, a tension controller, a fixed arm 9, a drive roller 10, a drive motor 11, and a rotary cylinder 12. The base is mounted on the fabric stacking machine 15. The swing arm 7 is vertically positioned, with its lower end hinged (via a left-right rotating shaft) to the rear of the base. The fixed arm 9 is vertically positioned, with its lower end fixed to the front of the base. The winding shaft 8 is located above the swing arm 7, extending left-right, and has a roll of filter cloth on it. The tension controller is located on the swing arm 7 and connected to the end of the winding shaft 8; it controls the tension during unwinding. The drive motor 11 is located on the fixed arm 9. The drive roller 10 is extended left-right and located above the fixed arm 9; it is connected to the drive motor 11. The rotary cylinder 12 is located between the swing arm 7 and the fixed arm 9 or the base, and is used to rotate the swing arm 7 forward.

[0018] When the fabric is being laid on the fabric stacking machine 15, the swing arm 7 is vertically positioned, and the filter cloth roll is located behind the drive roller 10 (i.e., the filter cloth roll is separated from the drive roller 10). The drive motor 11 is not working, and the winding shaft 8 is in a non-powered structure at this time. When the fabric stacking machine 15 is discharging, the swing arm 7 rotates forward, and the top of the filter cloth roll rests against the rear side of the drive roller 10. The two drive motors 11 work synchronously, driving the filter cloth roll to rotate through the drive roller 10. At this time, the winding shaft 8 is in a powered structure.

[0019] In this embodiment of the invention, the swing arm 7 includes two rotating rods arranged side-by-side and moving synchronously, with a connecting rod between the two rotating rods along the left-right direction. The rotating rods are vertically positioned, with their lower ends hinged (via a left-right rotating shaft) to the base. The fixed arm 9 includes two fixed rods arranged side-by-side, vertically positioned, with their lower ends fixed to the base. A winding shaft 8 is located between the two rotating rods, with its left and right ends rotatably mounted on the upper parts of the two rotating rods. A tension controller is located on the rotating rods. A drive roller 10 is located between the two fixed rods, with its left and right ends rotatably mounted on the upper parts of the two fixed rods. A drive motor 11 is located on one of the fixed rods. There are two rotary cylinders 12; the two rotary cylinders 12 are arranged side-by-side, moving synchronously, and are respectively connected to the two rotating rods.

[0020] In this embodiment of the invention, the tension controller includes a tension gear (for adjusting tension via a spring) and a winding gear, etc. The winding gear is coaxially disposed at the end (left or right end) of the winding shaft 8. The tension gear is arranged in a left-right direction, is mounted on the swing arm 7, is located below the winding gear, and its top meshes with the bottom of the winding gear.

[0021] Example 2 See Figures 1-4 Example 2 provides a device for winding and unwinding filter cloth, the structure of which is basically the same as that of Example 1, except that the filter cloth operation structure in this example has a correction function. The base includes a mounting base 3, a slide rail 4 arranged on the mounting base 3 in the left and right direction, a slide block 5 slidably arranged on the slide rail 4, and a correction servo motor 6 between the mounting base 3 and the slide block 5 for driving the slide block 5 to move left and right. The mounting base 3 is fixed on the fabric stacking machine 15, the slide block 5 can slide left and right, the lower end of the swing arm 7 is hinged to the rear of the slide block 5, the lower end of the fixed arm 9 is fixed to the front of the slide block 5, and the rotary cylinder 12 is arranged between the swing arm 7 and the fixed arm 9 or the slide block 5. Specifically, the slide block 5 is a rectangular frame arranged in the left and right direction, and there are two slide rails 4 arranged side by side. The front and rear ends of the bottom of the slide block 5 are slidably arranged on the two slide rails 4 respectively. The correction servo motor 6 is set in the left and right direction, located between the two slide rails 4, and fixed on the mounting base 3. It drives the slide block 5 to move left and right through the lead screw structure.

[0022] Example 3 See Figures 1-3 Example 3 provides a device for winding and unwinding filter cloth, which is basically the same as the structure of Example 1. The difference is that the rotary cylinder 12 in this example is arranged obliquely upward from front to back. The front end of the cylinder body is hinged to the lower part of the fixed arm 9 (through the left and right rotating shaft), and the rear end of the telescopic rod is hinged to the middle part of the swing arm 7 (through the left and right rotating shaft).

[0023] Example 4 See Figures 1-2 Example 4 provides a device for winding and unwinding filter cloth, the structure of which is basically the same as that of Example 1, except that: for the filter cloth operation structure for processing the upper filter cloth 1, the filter cloth operation structure also includes a pressure roller 13 to ensure that the upper filter cloth 1 (with a complex path) is conveyed during winding to ensure the winding effect. The pressure roller 13 is arranged in the left-right direction, located at the upper end of the fixed arm 9, and can move up and down. It is located above the drive roller 10 (specifically at the upper front side), and is smaller than the drive roller 10.

[0024] When the fabric is being laid on the fabric stacking machine 15, the pressure roller 13 rises away from the drive roller 10. When the fabric is being discharged from the fabric stacking machine 15, the pressure roller 13 presses the upper filter cloth 1 against the top of the drive roller 10.

[0025] When discharging, the filter cloth operation structure for processing the upper filter cloth 1 is as follows: the lower filter cloth 2 is placed on the conveying structure and moves forward with the conveying structure. The lower filter cloth 2 can be wound up by the drive of the filter cloth roll by the active roller 13.

[0026] Furthermore, two lifting cylinders 14 are provided at the top of the two fixed rods. The two lifting cylinders 14 are driven synchronously and are set vertically downward. The left and right ends of the pressure roller 13 are respectively located at the lower ends of the telescopic rods of the two lifting cylinders 14 (correspondingly provided with bearing seats). Specifically, two bearing seats are provided at the left and right ends of the pressure roller 13, and the two bearing seats are slidably mounted on the two fixed rods. The fixed rods have strip-shaped notches along the vertical direction for the bearing seats to slide. The bearing seats are slidably mounted in the strip-shaped notches and are connected to the lower ends of the telescopic rods of the corresponding lifting cylinders 14.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for winding and unwinding filter cloth, comprising two filter cloth operating structures, the two filter cloth operating structures being respectively used to process an upper filter cloth (1) and a lower filter cloth (2), each filter cloth operating structure comprising a base and a winding shaft (8), the winding shaft (8) being arranged in a left-right direction and having a filter cloth roll thereon; characterized in that, The filter cloth operating structure also includes a swing arm (7), a tension controller, a fixed arm (9), an active roller (10), a drive motor (11), and a rotary cylinder (12); the swing arm (7) is vertically arranged, and its lower end is hinged to the rear of the base; the fixed arm (9) is vertically arranged, and its lower end is fixed to the front of the base; the winding shaft (8) is located on the upper part of the swing arm (7), the tension controller is located on the swing arm (7) and is connected to the end of the winding shaft (8), and the drive motor (11) is located on the fixed arm (9); the active roller (10) is arranged in the left-right direction, located on the upper part of the fixed arm (9), and is connected to the drive motor (11) in a transmission connection; the rotary cylinder (12) is located between the swing arm (7) and the fixed arm (9) or the base, and is used to rotate the swing arm (7) forward; When the fabric is being laid by the fabric stacking machine (15), the swing arm (7) is set vertically, the filter cloth roll is located behind the drive roller (10), and the drive motor (11) is not working; when the fabric stacking machine (15) is discharging, the swing arm (7) rotates forward, the top of the filter cloth roll rests against the rear side of the drive roller (10), and the two drive motors (11) work synchronously.

2. The apparatus for winding and unwinding filter cloth according to claim 1, characterized in that, The base includes a mounting base (3), a slide rail (4) on the mounting base (3) and arranged in the left and right directions, a slide block (5) slidably arranged on the slide rail (4), and a correction servo motor (6) between the mounting base (3) and the slide block (5) for driving the slide block (5) to move in the left and right directions. The mounting base (3) is fixed on the folding machine (15). The slide block (5) can slide in the left and right directions. The lower end of the swing arm (7) is hinged to the rear of the slide block (5). The lower end of the fixed arm (9) is fixed to the front of the slide block (5). The rotary cylinder (12) is arranged between the swing arm (7) and the fixed arm (9) or the slide block (5).

3. The apparatus for winding and unwinding filter cloth according to claim 2, characterized in that, The slide block (5) is a rectangular frame arranged in the left and right direction. There are two slide rails (4), which are arranged side by side. The front and rear ends of the bottom of the slide block (5) are respectively slidably mounted on the two slide rails (4). The correction servo motor (6) is arranged in the left and right direction and is located between the two slide rails (4).

4. The apparatus for winding and unwinding filter cloth according to claim 1, characterized in that, The swing arm (7) includes two rotating rods arranged side by side and moving synchronously; the fixed arm (9) includes two fixed rods arranged side by side; the winding shaft (8) is located between the two rotating rods and its left and right ends are respectively rotatably located on the upper part of the two rotating rods; the tension controller is located on the rotating rod; the drive roller (10) is located between the two fixed rods and its left and right ends are respectively rotatably located on the upper part of the two fixed rods; the drive motor (11) is located on one of the fixed rods; the number of rotary cylinders (12) is two; the two rotary cylinders (12) are arranged side by side and driven synchronously, and they are respectively connected to the two rotating rods.

5. The apparatus for winding and unwinding filter cloth according to claim 1, characterized in that, The rotary cylinder (12) is arranged obliquely upward from front to back. The front end of its cylinder body is hinged to the lower part of the fixed arm (9), and the rear end of its telescopic rod is hinged to the middle part of the swing arm (7).

6. The apparatus for winding and unwinding filter cloth according to claim 4, characterized in that, For the filter cloth operation structure for processing the upper filter cloth (1): the filter cloth operation structure also includes a pressure roller (13); the pressure roller (13) is arranged in the left and right direction, located at the upper end of the fixed arm (9), and can move up and down, and is located on the upper side of the active roller (10); when the fabric is spread by the fabric stacking machine (15), the pressure roller (13) rises away from the active roller (10); when the fabric stacking machine (15) discharges the material, the pressure roller (13) presses the upper filter cloth (1) against the top of the active roller (10).

7. The apparatus for winding and unwinding filter cloth according to claim 6, characterized in that, Two lifting cylinders (14) are provided at the top of the two fixed rods. The two lifting cylinders (14) are driven synchronously and set vertically downward. The left and right ends of the pressure roller (13) are respectively located at the lower ends of the telescopic rods of the two lifting cylinders (14).

8. The apparatus for winding and unwinding filter cloth according to claim 1, characterized in that, The tension controller includes a tension gear and a winding gear. The winding gear is coaxially located at the end of the winding shaft (8). The tension gear is arranged in the left-right direction and is located on the swing arm (7). It is located below the winding gear and its top meshes with the bottom of the winding gear.

9. The apparatus for winding and unwinding filter cloth according to claim 1, characterized in that, The filter cloth operating structure for processing the upper filter cloth (1) is located at the rear of the stacking machine (15) and above the conveying structure of the stacking machine (15), while the filter cloth operating structure for processing the lower filter cloth (2) is located at the front of the stacking machine (15) and below the conveying structure of the stacking machine (15).

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