Filter cloth replacing device of filter press

Abstract

The invention relates to a filter cloth replacing device of a filter press. The cloth clamping device comprises a moving mechanism which can move to the vertical side of the cloth clamping device in the vertical direction, and the moving mechanism comprises two moving frames which can move oppositely or oppositely; the rotating ends of the two rotating mechanisms can be matched with the two locking discs; the first filter cloth conveying mechanism is arranged on one vertical side of the moving mechanism, and the first filter cloth conveying mechanism is used for conveying to-be-replaced filter cloth in the transverse direction; the second filter cloth conveying mechanism is arranged on one vertical side of the moving mechanism, and the second filter cloth conveying mechanism is used for transferring the replaced filter cloth in the transverse direction; and the third filter cloth conveying mechanism is butted between the first filter cloth conveying mechanism and the second filter cloth conveying mechanism and is used for transferring the filter cloth to be replaced from the first filter cloth conveying mechanism to the cloth clamping device in the vertical direction and transferring the replaced filter cloth from the cloth clamping device to the second filter cloth conveying mechanism. According to the invention, the convenience and safety of the filter cloth replacement process are improved.

Description

Technical Field

[0001] This invention relates to the field of filtration machinery and equipment technology, and in particular to a filter cloth replacement device for a filter press. Background Technology

[0002] Existing filter presses typically employ a combination structure of filter plates and filter cloth. The filter cloth is installed on both sides of the filter plate and secured to it using cloth clamps. The filter plates are generally suspended from crossbeams on both sides of the equipment to provide stable support during filtration and pressing.

[0003] In practical use, filter cloth is a consumable part that needs to be replaced regularly to maintain filtration efficiency. However, in existing technologies, filter cloth replacement mainly relies on manual operation, which usually requires lifting the filter plate first and then removing and installing the filter cloth. This process is not only labor-intensive and inefficient, but also inconvenient and poses safety risks. Summary of the Invention

[0004] Therefore, the present invention provides a filter cloth replacement device for a filter press, which realizes the automated operation of filter cloth disassembly and installation, avoids the heavy labor of manually lifting filter plates, significantly reduces the intensity of manual operation and safety risks, and improves the convenience and safety of the filter cloth replacement process.

[0005] To solve the above-mentioned technical problems, the present invention provides a filter cloth replacement device for a filter press, which is applied to a filter press. A cloth clamping device is provided on the side beam of the filter press, and the filter cloth replacement device is located on one side of the clamping device. The clamping device includes a cloth clamper and filter plates. The clamper includes two locking discs that are threaded together. The two locking discs are respectively located in the middle of the outer side walls of two filter plates. The two locking discs are threaded together to clamp the filter cloth to be replaced between the two filter plates. Core rods are inserted through both ends of the filter cloth to be replaced. The filter plates are suspended on the side beam of the filter press. The filter cloth replacement device includes: The moving mechanism is capable of moving vertically to one side of the fabric clamping device, and the moving mechanism includes two moving frames that can move relative to or away from each other; Two rotating mechanisms are respectively arranged on each of the movable frames. The rotating ends of the two rotating mechanisms can cooperate with the two locking discs to drive the corresponding two locking discs to rotate in opposite directions. The first filter cloth conveying mechanism is located on the vertical side of the moving mechanism, and the first filter cloth conveying mechanism is used to convey the filter cloth to be replaced in the horizontal direction; The second filter cloth conveying mechanism is located on the vertical side of the moving mechanism. The second filter cloth conveying mechanism is used to transfer the replaced filter cloth in the lateral direction. The third filter cloth conveying mechanism is connected between the first filter cloth conveying mechanism and the second filter cloth conveying mechanism. It is used to transfer the filter cloth to be replaced from the first filter cloth conveying mechanism to the cloth clamping device position in the vertical direction, and to transfer the filter cloth to be replaced from the cloth clamping device to the second filter cloth conveying mechanism.

[0006] In one embodiment of the present invention, the moving mechanism includes a vertical guide rail, a horizontal guide rail, a horizontal support frame, and a vertical support frame. The bottom of the vertical support frame is provided with a drive wheel that cooperates with the horizontal guide rail. The drive wheel is connected to a motor device. The two vertical guide rails are arranged opposite to each other on the vertical support frame. The horizontal ends of the horizontal support frame are provided with movable rollers that cooperate with the vertical guide rails. The two moving frames are movably and slidably connected to the horizontal support frame.

[0007] In one embodiment of the invention, a transverse drive cylinder is connected to one side of each of the two movable frames.

[0008] In one embodiment of the present invention, the vertical support frame is connected to a vertical drive cylinder.

[0009] In one embodiment of the present invention, the rotating mechanism includes a drive motor, a driving sprocket connected to the drive end of the drive motor, a driven sprocket, and a chain connecting the driving sprocket and the driven sprocket. The movable frame is provided with a rotating clamp for clamping the locking disc, and the rotating clamp is connected to the driven sprocket.

[0010] In one embodiment of the present invention, the first filter cloth conveying mechanism includes two first synchronous conveying lines arranged opposite each other in the longitudinal direction and extending in the transverse direction. The two first synchronous conveying lines are connected to first bracket plates that extend opposite each other in the longitudinal direction. An area for accommodating the filter cloth to be replaced is formed between the two first bracket plates. The extended ends on both sides of the core rod on the upper side of the filter cloth to be replaced can be suspended on the two corresponding first bracket plates.

[0011] In one embodiment of the present invention, the second filter cloth conveying mechanism includes two second synchronous conveying lines arranged opposite each other in the longitudinal direction and extending in the transverse direction. The two second synchronous conveying lines are connected to second bracket plates that extend opposite each other in the longitudinal direction. An area for accommodating the replaced filter cloth is formed between the two second bracket plates. The extended ends on both sides of the upper core rod on the replaced filter cloth can be suspended on the two corresponding second bracket plates.

[0012] In one embodiment of the present invention, the third filter cloth conveying mechanism includes two third synchronous conveying lines arranged opposite each other in the longitudinal direction and extending vertically. Each of the third synchronous conveying lines is connected to a third bracket plate that extends opposite each other in the longitudinal direction. An area is formed between the two third bracket plates to accommodate the filter cloth to be replaced or the replaced filter cloth. The extended ends on both sides of the core rod on the upper side of the filter cloth to be replaced or the replaced filter cloth can be suspended on the two corresponding third bracket plates. The third bracket plates can be rotated.

[0013] In one embodiment of the present invention, the end of the first filter cloth conveying mechanism is provided with a first pusher for pushing the filter cloth to be replaced on the first bracket plate to the third bracket plate, and the third filter cloth conveying mechanism is provided with a second pusher for pushing the replaced filter cloth on the third bracket plate to the second bracket plate.

[0014] In one embodiment of the present invention, when transferring the filter cloth to be replaced, the horizontal height of the support surface of the third bracket plate is greater than the horizontal height of the support surface of the first bracket plate; when transferring the replaced filter cloth, the horizontal height of the support surface of the first bracket plate is greater than the horizontal height of the support surface of the third bracket plate.

[0015] The technical solution of the present invention has the following advantages compared with the prior art: The filter cloth replacement device for a filter press described in this invention achieves automated operation of filter cloth disassembly and installation through the coordinated operation of a moving mechanism, a rotating mechanism, a first filter cloth conveying mechanism, a second filter cloth conveying mechanism, and a third filter cloth conveying mechanism. This design avoids the heavy labor of manually lifting filter plates, significantly reduces the intensity of manual operation and safety risks, and improves the convenience and safety of the filter cloth replacement process. Attached Figure Description

[0016] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall main structure of the filter cloth replacement device for the filter press of the present invention.

[0018] Figure 2 This is a side view schematic diagram of the overall structure of the filter cloth replacement device for the filter press of the present invention.

[0019] Figure 3 This is a front view structural diagram of the moving mechanism and rotating mechanism of the present invention.

[0020] Figure 4 This is a side view of the moving mechanism and rotating mechanism of the present invention.

[0021] Figure 5 This is a schematic diagram of the main structure of the fabric clamping device of the present invention.

[0022] Figure 6 This is a side view of the fabric clamping device of the present invention.

[0023] Figure 7 This is a schematic diagram of the main structure of the filter plate of the present invention.

[0024] Figure 8 This is a side view of the filter plate of the present invention.

[0025] Figure 9 This is a schematic diagram of the main structure of the filter cloth of the present invention.

[0026] Figure 10 This is a side view of the filter cloth structure of the present invention.

[0027] Figure 11 This is a schematic diagram of the main structure of the fabric clamp of the present invention.

[0028] Figure 12 This is a side view of the fabric clamping device of the present invention.

[0029] Explanation of reference numerals in the instruction manual: 1. Cloth clamping device; 11. Filter plate; 120. Cloth clamper; 12. Locking disc; 13. Core rod; 14. Side beam; 15. Filter cloth to be replaced; 16. Replaced filter cloth; 2. Moving mechanism; 21. Moving frame; 22. Vertical guide rail; 23. Horizontal guide rail; 24. Horizontal support frame; 25. Vertical support frame; 26. Drive wheel; 27. Moving roller; 28. Horizontal drive cylinder; 29. ​​Vertical drive cylinder; 3. Rotating mechanism; 31. Driving sprocket; 32. Driven sprocket; 33. Chain; 34. Rotating chuck; 4. First filter cloth conveying mechanism; 41. First synchronous conveying line; 5. Second filter cloth conveying mechanism; 51. Second synchronous conveyor line; 6. Third filter cloth conveying mechanism; 61. Third synchronous conveying line; 62. Third bracket plate. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0031] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0032] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.

[0034] This invention provides a filter cloth replacement device for a filter press, applicable to a filter press. A cloth clamping device 1 is provided on the side beam 14 of the filter press, and the filter cloth replacement device is located on one side of the cloth clamping device 1. (Refer to...) Figures 5 to 12 As shown, the cloth clamping device 1 includes a cloth clamper 120 and filter plates 11. The cloth clamper 120 includes two locking discs 12 that are threaded together. The two locking discs 12 are located at the middle of the outer side walls of the two filter plates 11, respectively. The two locking discs 12 are threaded together to clamp the filter cloth 15 to be replaced between the two filter plates 11. The filter cloth 15 to be replaced has core rods 13 passing through both ends. The filter plates 11 are suspended on the side beam 14 of the filter press. (Ref) Figure 1 , Figure 2 As shown, the filter cloth replacement device includes: The moving mechanism 2 is capable of moving vertically to one side of the fabric clamping device 1. The moving mechanism 2 includes two moving frames 21 that can move relative to or away from each other. Two rotating mechanisms 3 are respectively disposed on each of the movable frames 21. The rotating ends of the two rotating mechanisms 3 can cooperate with the two locking discs 12 to drive the corresponding two locking discs 12 to rotate in opposite directions. The first filter cloth conveying mechanism 4 is disposed on the vertical side of the moving mechanism 2. The first filter cloth conveying mechanism 4 is used to convey the filter cloth 15 to be replaced in the transverse direction. The second filter cloth conveying mechanism 5 is located on one vertical side of the moving mechanism 2. The second filter cloth conveying mechanism 5 is used to transfer the replaced filter cloth 16 in the lateral direction. The third filter cloth conveying mechanism 6 is connected between the first filter cloth conveying mechanism 4 and the second filter cloth conveying mechanism 5. It is used to transfer the filter cloth 15 to be replaced from the first filter cloth conveying mechanism 4 to the position of the cloth clamping device 1 in the vertical direction, and to transfer the filter cloth 16 to be replaced from the cloth clamping device 1 to the second filter cloth conveying mechanism 5.

[0035] In one embodiment, refer to Figure 3 As shown, the moving mechanism 2 includes a vertical guide rail 22, a horizontal guide rail 23, a horizontal support frame 24, and a vertical support frame 25. The bottom of the vertical support frame 25 is provided with a drive wheel 26 that cooperates with the horizontal guide rail 23. The drive wheel 26 is connected to a motor. The two vertical guide rails 22 are arranged opposite each other on the vertical support frame 25. The horizontal ends of the horizontal support frame 24 are provided with moving rollers 27 that cooperate with the vertical guide rails 22. The two moving frames 21 are movably and slidably connected to the horizontal support frame 24. The moving mechanism 2 can be precisely positioned under the guidance of the vertical guide rails 22 and the horizontal guide rails 23, and achieve multi-degree-of-freedom movement under the action of the horizontal drive cylinder 28 and the vertical drive cylinder 29, enabling the two moving frames 21 to accurately align with the cloth clamping device 1. This structure ensures the reliability and stability of the operation during filter cloth assembly and disassembly, and shortens the filter cloth replacement time.

[0036] In one embodiment, each of the two movable frames 21 is connected to a lateral drive cylinder 28 on one side, and the vertical support frame 25 is connected to a vertical drive cylinder 29.

[0037] In one embodiment, refer to Figure 4 As shown, the rotating mechanism 3 includes a drive motor, a drive sprocket 31 connected to the drive end of the drive motor, a driven sprocket 32, and a chain 33 connecting the drive sprocket 31 and the driven sprocket 32. The movable frame 21 is provided with a rotating clamping plate 34 for clamping the locking plate 12, and the rotating clamping plate 34 is connected to the driven sprocket 32.

[0038] The drive motor, drive sprocket 31, driven sprocket 32, and chain 33 transmission structure drive the rotating clamping plate 34 to achieve synchronous rotation of the locking plate 12, thus automating the tightening and loosening operation of the cloth clamp 120. Compared with the existing manual tightening method, this solution can efficiently and stably complete the clamping or releasing action of the filter cloth, improving work efficiency and reducing filter cloth installation defects caused by uneven operation.

[0039] In one embodiment, refer to Figure 1 As shown, the first filter cloth conveying mechanism 4 includes two first synchronous conveying lines 41 arranged longitudinally opposite each other and extending laterally. The two first synchronous conveying lines 41 are connected to multiple first bracket plates (arranged at intervals) extending longitudinally opposite each other. An area for accommodating the filter cloth 15 to be replaced is formed between two opposing first bracket plates. The extended ends on both sides of the upper core rod 13 of the filter cloth 15 to be replaced can be suspended on the two corresponding first bracket plates. The two first synchronous conveying lines 41 can be two conveyor belts moving synchronously.

[0040] Specifically, refer to Figure 1 As shown, the second filter cloth conveying mechanism 5 includes two second synchronous conveying lines 51 arranged longitudinally opposite each other and extending laterally. The two second synchronous conveying lines 51 are connected to second bracket plates extending longitudinally opposite each other. A region for accommodating the replaced filter cloth 16 is formed between the two second bracket plates. The extended ends on both sides of the upper core rod 13 of the replaced filter cloth 16 can be suspended on the two corresponding second bracket plates. The two second synchronous conveying lines 51 can be two conveyor belts moving synchronously.

[0041] Specifically, refer to Figure 2 As shown, the third filter cloth conveying mechanism 6 includes two longitudinally opposite and vertically extending third synchronous conveying lines 61. Each third synchronous conveying line 61 is connected to a longitudinally opposite third bracket plate 62. A region is formed between the two third bracket plates 62 to accommodate the filter cloth 15 to be replaced or the replaced filter cloth 16. The extended ends on both sides of the upper core rod 13 of the filter cloth 15 to be replaced or the replaced filter cloth 16 can be suspended on the two corresponding third bracket plates 62. The third bracket plates 62 are rotatable, specifically achieved by setting a rotatable cylinder or other structure to avoid interference between the third bracket plate 62 and the cloth clamping device 1 during its downward movement. The two third synchronous conveying lines 61 can be two synchronously moving conveyor belts.

[0042] In one embodiment, the end of the first filter cloth conveying mechanism 4 is provided with a first push rod for pushing the filter cloth 15 to be replaced on the first bracket plate to the third bracket plate 62, and the third filter cloth conveying mechanism 6 is provided with a second push rod for pushing the replaced filter cloth 16 on the third bracket plate 62 to the second bracket plate.

[0043] When the filter cloth 15 to be replaced moves to the end via the first synchronous conveyor line 41, the sensor senses the position and the first pusher moves laterally under the action of the drive component (such as a hydraulic cylinder, pneumatic cylinder, etc.), pushing the core rod 13 part of the filter cloth 15 to be replaced from the first bracket plate to the third bracket plate 62, so that the filter cloth can smoothly complete the transfer from lateral conveying to vertical conveying.

[0044] When the third filter cloth conveying mechanism 6 lifts the filter cloth 16 to be replaced to the docking height, the second pusher rod is activated, pushing the core rod 13 part of the filter cloth from the third bracket plate 62 to the second bracket plate, so that the filter cloth to be replaced can smoothly enter the second filter cloth conveying mechanism 5, thereby realizing the transfer and discharge of waste filter cloth.

[0045] It should be noted that the first and second push rods can also be replaced by robotic arms, making the transfer more precise and convenient.

[0046] In one embodiment, when transferring the filter cloth 15 to be replaced, the horizontal height of the supporting surface of the third bracket plate 62 is greater than the horizontal height of the supporting surface of the first bracket plate; when transferring the replaced filter cloth 16, the horizontal height of the supporting surface of the first bracket plate is greater than the horizontal height of the supporting surface of the third bracket plate 62. By reasonably setting the height difference, the filter cloth can be easily transferred between different conveying stages by means of the push rod and gravity, ensuring that the filter cloth transfer action is smooth and reliable.

[0047] The working principle of this invention is as follows: When the filter cloth needs to be replaced, the motor of the drive wheel 26 first moves the drive wheel 26 on the transverse guide rail 23, so that the vertical support frame 25 reaches the working position of the cloth clamping device 1. Then, the vertical drive cylinder 29 is activated, driving the transverse support frame 24 to move downward along the vertical guide rail 22, and moving the two moving frames 21 downward to the position of the locking disc 12. Next, the transverse drive cylinder 28 pushes the two moving frames 21 to move towards each other, so that the rotating clamping disc 34 on the moving frame 21 engages with the two locking discs 12 and tightens, thereby achieving the locking and positioning of the cloth clamp 120. At this time, the drive motor drives the drive sprocket 31 to rotate, which drives the driven sprocket 32 ​​to rotate through the chain 33, further driving the two locking discs 12 to rotate in opposite directions, so that the cloth clamp 120 is released, and the replaced filter cloth 16 is released between the filter plates 11. After unlocking is completed, the transverse drive cylinder 28 is activated again, so that the moving frame 21 is reset, and the two locking discs 12 of the cloth clamp 120 are completely separated.

[0048] During the filter cloth replacement process, the old filter cloth that is removed (the replaced filter cloth 16) is raised vertically by the third filter cloth conveying mechanism 6 and transferred to the second bracket plate of the second filter cloth conveying mechanism 5, and then carried away by the second filter cloth conveying mechanism 5.

[0049] The first filter cloth conveying mechanism 4 is activated, driving the filter cloth 15 to be replaced to move laterally, with its core rod 13 stably suspended between the first bracket plates. When the first filter cloth 15 is in a predetermined position (detected by a sensor), the first filter cloth conveying mechanism 4 continues to move and, by gravity (or by pushing it at the predetermined position via the first pusher rod), pushes the filter cloth 15 to the third bracket plate 62 of the third filter cloth conveying mechanism 6. The third filter cloth conveying mechanism 6 moves vertically downwards, transferring the filter cloth 15 to the clamping position between the filter plates 11.

[0050] Once the filter cloth 15 to be replaced is in place, the transverse drive cylinder 28 actuates again, causing the two locking discs 12 to close, and the filter plate 11 to press and clamp the filter cloth 15 to be replaced. The drive motor then drives the drive sprocket 31 again, and the chain 33 drives the driven sprocket 32 ​​and the rotating clamp 34 to rotate, tightening the locking discs 12 through threaded engagement, thus completing the re-clamping and fixing of the filter cloth. Finally, the moving frame 21 and the transverse drive cylinder 28 reset, and the entire filter cloth replacement process ends. Through cyclic operation, this device can sequentially complete the filter cloth replacement operation at each position. It achieves automated filter cloth replacement, has a reasonable structural design, effectively reduces manual operation, shortens replacement time, improves equipment operating efficiency, and has good economic and practical advantages.

[0051] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A filter cloth replacement device for a filter press, characterized in that, Applied to a filter press, the filter press has a cloth clamping device (1) on its side beam (14). The filter cloth replacement device is located on one side of the cloth clamping device (1). The cloth clamping device (1) includes a cloth clamp (120) and a filter plate (11). The cloth clamp (120) includes two locking discs (12) that are threaded together. The two locking discs (12) are located in the middle of the outer side wall of the two filter plates (11). The two locking discs (12) are threaded together to clamp the filter cloth (15) to be replaced between the two filter plates (11). The filter cloth (15) to be replaced has a core rod (13) passing through both ends. The filter plate (11) is suspended on the side beam (14) of the filter press. The filter cloth replacement device includes: The moving mechanism (2) is capable of moving vertically to one side of the fabric clamping device (1). The moving mechanism (2) includes two moving frames (21) that can move relative to or away from each other. Two rotating mechanisms (3) are respectively disposed on each of the movable frames (21). The rotating ends of the two rotating mechanisms (3) can cooperate with the two locking discs (12) to drive the corresponding two locking discs (12) to rotate in opposite directions. The first filter cloth conveying mechanism (4) is located on the vertical side of the moving mechanism (2). The first filter cloth conveying mechanism (4) is used to convey the filter cloth (15) to be replaced in the horizontal direction. The second filter cloth conveying mechanism (5) is located on the vertical side of the moving mechanism (2). The second filter cloth conveying mechanism (5) is used to transfer the replaced filter cloth (16) in the horizontal direction. The third filter cloth conveying mechanism (6) is connected between the first filter cloth conveying mechanism (4) and the second filter cloth conveying mechanism (5) for transferring the filter cloth to be replaced (15) from the first filter cloth conveying mechanism (4) to the clamping device (1) in the vertical direction, and for transferring the filter cloth to be replaced (16) from the clamping device (1) to the second filter cloth conveying mechanism (5).

2. The filter cloth replacement device for a filter press according to claim 1, characterized in that, The moving mechanism (2) includes a vertical guide rail (22), a horizontal guide rail (23), a horizontal support frame (24), and a vertical support frame (25). The bottom of the vertical support frame (25) is provided with a drive wheel (26) that cooperates with the horizontal guide rail (23). The drive wheel (26) is connected to a motor device. The two vertical guide rails (22) are arranged opposite to each other on the vertical support frame (25). The horizontal ends of the horizontal support frame (24) are provided with moving rollers (27) that cooperate with the vertical guide rails (22). The two moving frames (21) are movably and slidably connected to the horizontal support frame (24).

3. A filter cloth replacement device for a filter press according to claim 2, characterized in that, Each of the two movable frames (21) is connected to a lateral drive cylinder (28) on one side.

4. A filter cloth replacement device for a filter press according to claim 2, characterized in that, The vertical support frame (25) is connected to a vertical drive cylinder (29).

5. A filter cloth replacement device for a filter press according to claim 1, characterized in that, The rotating mechanism (3) includes a drive motor, a drive sprocket (31) connected to the drive end of the drive motor, a driven sprocket (32), and a chain (33) connecting the drive sprocket (31) and the driven sprocket (32). The moving frame (21) is provided with a rotating chuck (34) for clamping the locking disc (12), and the rotating chuck (34) is connected to the driven sprocket (32).

6. A filter cloth replacement device for a filter press according to claim 1, characterized in that, The first filter cloth conveying mechanism (4) includes two first synchronous conveying lines (41) arranged longitudinally opposite each other and extending laterally. The two first synchronous conveying lines (41) are connected to first bracket plates that extend longitudinally opposite each other. An area for accommodating the filter cloth (15) to be replaced is formed between the two first bracket plates. The extended ends on both sides of the core rod (13) on the upper side of the filter cloth (15) to be replaced can be suspended on the two corresponding first bracket plates.

7. A filter cloth replacement device for a filter press according to claim 6, characterized in that, The second filter cloth conveying mechanism (5) includes two second synchronous conveying lines (51) arranged longitudinally opposite each other and extending laterally. The two second synchronous conveying lines (51) are connected to second bracket plates that extend longitudinally opposite each other. An area for accommodating the replaced filter cloth (16) is formed between the two second bracket plates. The extended ends on both sides of the upper core rod (13) on the replaced filter cloth (16) can be suspended on the two corresponding second bracket plates.

8. A filter cloth replacement device for a filter press according to claim 7, characterized in that, The third filter cloth conveying mechanism (6) includes two third synchronous conveying lines (61) arranged opposite each other in the longitudinal direction and extending vertically. Each of the third synchronous conveying lines (61) is connected to a third bracket plate (62) that extends opposite each other in the longitudinal direction. An area is formed between the two third bracket plates (62) to accommodate the filter cloth to be replaced (15) or the filter cloth (16) after replacement. The extended ends on both sides of the core rod (13) on the upper side of the filter cloth to be replaced (15) or the filter cloth (16) after replacement can be suspended on the two corresponding third bracket plates (62). The third bracket plates (62) can be flipped and moved.

9. A filter cloth replacement device for a filter press according to claim 8, characterized in that, The end of the first filter cloth conveying mechanism (4) is provided with a first push rod for pushing the filter cloth (15) to be replaced on the first bracket plate to the third bracket plate (62), and the third filter cloth conveying mechanism (6) is provided with a second push rod for pushing the replaced filter cloth (16) on the third bracket plate (62) to the second bracket plate.

10. A filter cloth replacement device for a filter press according to claim 9, characterized in that, When transferring the filter cloth (15) to be replaced, the horizontal height of the support surface of the third bracket plate (62) is greater than the horizontal height of the support surface of the first bracket plate; when transferring the filter cloth (16) after it has been replaced, the horizontal height of the support surface of the first bracket plate is greater than the horizontal height of the support surface of the third bracket plate (62).

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