Automatic filter cloth flanging device for filter pressing

Abstract

The invention belongs to the technical field of filter pressing equipment, in particular to an automatic filter cloth flanging device for filter pressing, and provides the following scheme that the automatic filter cloth flanging device specifically comprises a flanging support, a distance adjusting sliding plate is mounted at the lower end of one side of the top of the flanging support, and a rotationally connected distance adjusting roller mechanism is mounted at the upper end of one side of the top of the flanging support; a distance adjusting motor in transmission connection with the distance adjusting roller mechanism is installed at the end of the flanging support, a guide roller in rotating connection is installed in the middle of the flanging support, and a guide motor in transmission connection with the guide roller is installed at the end of the flanging support. The edge of the filter cloth enters the area between the cloth turning mechanism and the edge turning conveying belt, the cloth turning mechanism forms a protruding part of an L-shaped structure above the edge turning conveying belt, the bottom of the cloth turning mechanism is inserted into the folded filter cloth, and the edge of the filter cloth can be automatically turned over in the cloth rolling process, so that the edge is prevented from being folded in the filter cloth rolling process; automatic cloth turning operation is achieved when the filter cloth is rolled, and the labor cost is saved.

Description

Technical Field

[0001] This invention relates to the field of filter press equipment technology, and in particular to an automatic edge-turning device for filter cloth used in filter presses. Background Technology

[0002] Filtration is an industrial technology that uses the pressure difference created on both sides of a porous medium to achieve solid-liquid separation. It is widely used in chemical, pharmaceutical, and wastewater treatment industries. Its core equipment, the plate and frame filter press, uses alternating filter plates and frames to form a closed filtration unit, capable of handling highly viscous fine particles and enabling intermittent operation. In the copper sulfate mother liquor purification process, the filter press plays a crucial role in removing precipitates and ensuring the purity of evaporation and crystallization, forming a multi-stage filtration system in conjunction with a security filter.

[0003] In deep dewatering systems, after the filter cloth wrapped in mud is subjected to high-pressure filtration, the edges of the filter cloth will fold, which will directly affect the subsequent winding and unwinding processes, resulting in phenomena such as filter cloth deviation, filter cloth not being able to wrap the mud, and mud leakage during filtration. In the current technology, manual intervention is mainly relied on manually turning the edges to flatten and straighten the folded filter cloth. Otherwise, it will affect the winding of the cloth and the next unwinding, resulting in high labor costs.

[0004] In view of this, the present invention provides an automatic edge-turning device for filter cloth used in filter pressing, so as to solve the technical problems existing in the prior art. Summary of the Invention

[0005] Based on the technical problems existing in the background art, the present invention proposes an automatic edge-turning device for filter cloth used in filter pressing.

[0006] This invention proposes an automatic edge-turning device for filter cloth used in filter pressing, comprising an edge-turning bracket, an adjustable sliding plate installed at the lower end of one top side of the edge-turning bracket, an adjustable roller mechanism rotatably connected to the upper end of one top side of the edge-turning bracket, and an adjustable motor pulsatingly connected to the adjustable roller mechanism installed at the end of the edge-turning bracket, a guide roller rotatably connected to the middle of the edge-turning bracket, and a guide motor pulsatingly connected to the guide roller installed at the end of the edge-turning bracket, and multiple edge-turning rollers rotatably connected to the other top side of the edge-turning bracket, with edge-turning conveyor belts fitted at both ends of the outer sides of the edge-turning rollers, a drive motor pulsatingly connected to the edge-turning rollers installed at the end of the edge-turning bracket, a cloth-turning mechanism installed at both ends of the top of the edge-turning bracket, and rectangular grooves provided at both ends of the top of the edge-turning bracket, with a cloth edge unfolding mechanism installed inside each of the two rectangular grooves, the cloth edge unfolding mechanism being positioned between the guide roller and the edge-turning conveyor belt.

[0007] Preferably, in this invention, the adjusting roller mechanism includes a main roller body rotatably mounted on a flange bracket, and a plurality of driving teeth are provided in the middle of the main roller body. An outer cylinder body is sleeved on the outside of the main roller body, and a transmission groove that cooperates with the driving teeth is provided inside the outer cylinder body. Both ends of the outer cylinder body are provided with adjusting discs with a frustum-shaped structure.

[0008] Preferably, in this invention, the adjusting roller mechanism further includes a plurality of electric telescopic rods fixedly installed on the flange bracket, and an annular movable member is installed between the ends of the electric telescopic rods. A plurality of balls are rotatably installed at the front end of the annular movable member. A push ring is installed on the outer side of the adjusting disc by a spring, and an annular groove that cooperates with the balls is provided on the outer side of the push ring.

[0009] Preferably, in this invention, the fabric edge unfolding mechanism includes a U-shaped mounting frame fixedly connected to the flanging bracket, and two vertically distributed fabric unfolding brackets are installed inside the front end of the U-shaped mounting frame via a torsion spring shaft. A fabric unfolding motor is installed in the middle of the fabric unfolding brackets, and a flattening wheel is provided on the outside of the fabric unfolding motor.

[0010] Preferably, in this invention, the outer side of the flattening wheel is provided with a plurality of inclined elastic rods, and the outer end of the elastic rod is provided with a flattening plate with an elastic structure.

[0011] Preferably, in this invention, the fabric unfolding mechanism further includes an unfolding electric push rod fixedly installed in the middle of the U-shaped mounting frame, and a limiting member is installed at the end of the unfolding electric push rod, with a C-shaped groove that cooperates with the fabric unfolding bracket at the front end of the limiting member.

[0012] Preferably, in this invention, the fabric turning mechanism includes a fixed base plate fixedly installed on the turning bracket, a swing rod rotatably installed at the top center of the fixed base plate, a limiting rod cooperating with the swing rod installed on the top side of the fixed base plate, a connecting bolt installed on the top of the fixed base plate, a tension spring installed between the connecting bolt and the swing rod, an L-shaped adjusting frame fixedly installed on the side of the swing rod, and a fabric turning plate installed at the bottom end of the adjusting frame.

[0013] Preferably, in this invention, the surface of the swing rod is provided with two horizontally distributed first strip-shaped holes, and the surface of the adjustment frame is provided with two vertically distributed second strip-shaped holes. The swing rod and the adjustment frame are fixedly connected by the first strip-shaped holes, the second strip-shaped holes and the bolts inserted inside them, and the front end of the flip-up plate has a duckbill-shaped structure.

[0014] Preferably, in this invention, the adjusting frame includes a vertical plate connected to a swing arm and a horizontal plate connected to a fabric turning plate. An upper ring and a lower ring are rotatably connected between the vertical plate and the horizontal plate. A torsion spring is provided between the interior of the upper ring and the lower ring. The bottom of the upper ring is provided with an arc-shaped tooth, and the bottom of the lower ring is provided with an arc-shaped groove that matches the arc-shaped tooth.

[0015] Preferably, in this invention, the top of the flanging bracket is also equipped with a rotatably connected support roller, and the support roller is distributed between the two fabric edge unfolding mechanisms.

[0016] Compared with the prior art, the present invention provides an automatic edge-turning device for filter cloth used in filter press, which has the following advantages: In this invention, in the filter press system, after the mud layer is subjected to high-pressure filtration, the filter cloth wrapping the mud layer is fed into the mud cake under the conveying of rollers. However, the edges of the filter cloth wrapping the mud layer will fold during the wrapping and filtration processes. During the winding process, when the filter cloth enters the adjusting slide plate, the adjusting roller mechanism squeezes the two sides of the filter cloth, constraining the filter cloth in the middle area of ​​the flange support, and pushing the mud layer at the edge of the filter cloth, so that the tightly adhering edges of the filter cloth are initially dispersed. Afterward, the filter cloth edge enters the fabric edge. The unfolding mechanism, with its outward tilting motion, further disperses and unfolds the filter cloth edge, preventing the edge from being tightly pressed together. The loosened filter cloth edge then enters the area between the fabric turning mechanism and the fabric turning conveyor belt. The fabric turning mechanism forms an L-shaped protrusion above the fabric turning conveyor belt, with its bottom inserted into the folded filter cloth. During the rolling process, the filter cloth edge automatically unfolds, thus preventing folding during the winding process. This achieves automatic fabric turning during filter cloth winding, saving labor costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an automatic edge-flipping device for filter cloth in pressure filtration proposed in this invention; Figure 2 This is a schematic diagram of the adjusting roller mechanism of an automatic edge-turning device for filter cloth in filter pressing according to the present invention; Figure 3 This is a side view of the adjusting roller mechanism of an automatic edge-turning device for filter cloth in filter pressing according to the present invention. Figure 4 This is a schematic diagram of the fabric edge unfolding mechanism of an automatic edge-flipping device for filter cloth in pressure filtration proposed in this invention; Figure 5 This is a schematic diagram of the fabric spreading support structure of an automatic edge-turning device for filter cloth in pressure filtration proposed in this invention; Figure 6 This is a schematic diagram of the limiting component structure of an automatic edge-turning device for filter cloth in pressure filtration proposed in this invention; Figure 7 This is a schematic diagram of the fabric turning mechanism of an automatic filter cloth turning device for filter press proposed in this invention; Figure 8 This is a schematic diagram of the fabric turning plate structure of an automatic edge turning device for filter cloth in filter press according to the present invention; Figure 9 This is a schematic diagram of the obstructed movement of the flipping plate in an automatic edge-flipping device for filter cloth in the present invention. Figure 10 This is a schematic diagram of the adjusting frame structure of an automatic edge-turning device for filter cloth in pressure filtration proposed in this invention; Figure 11 This is a schematic diagram of the movement direction of the turning mechanism of an automatic turning device for filter cloth in pressure filtration proposed in this invention.

[0018] In the diagram: 1. Flanging bracket, 2. Adjusting roller mechanism, 21. Main roller body, 22. Drive tooth, 23. Outer cylinder body, 24. Transmission groove, 25. Adjusting disc, 26. Push ring, 27. Ball bearing, 28. Annular moving part, 29. Electric telescopic rod, 3. Adjusting motor, 4. Drive motor, 5. Fabric turning mechanism, 51. Fixed base plate, 52. Connecting bolt, 53. Tension spring, 54. Limiting rod, 55. Swing rod, 56. Adjusting frame, 561. Vertical plate, 562. Horizontal plate, 563. Upper ring body, 564. Lower ring body, 565. Arc tooth, 57. Fabric turning plate, 6. Support roller, 7. Flanging roller, 8. Flanging conveyor belt, 9. Fabric edge unfolding mechanism, 91. U-shaped mounting frame, 92. Fabric spreading bracket, 93. Fabric spreading motor, 94. Spreading wheel, 95. Spreading plate, 96. Spreading electric push rod, 97. Limiting part, 10. Adjusting slide plate, 11. Guide roller, 12. Guide motor. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] Reference Figures 1-11An automatic edge-turning device for filter cloth used in filter pressing includes an edge-turning bracket 1. An adjustable sliding plate 10 is installed at the lower end of one side of the top of the edge-turning bracket 1. An adjustable roller mechanism 2 is rotatably connected to the upper end of one side of the top of the edge-turning bracket 1. An adjustable motor 3, which is pulsively connected to the adjustable roller mechanism 2, is installed at the end of the edge-turning bracket 1. A guide roller 11, which is rotatably connected to the middle of the edge-turning bracket 1, is installed at the end of the edge-turning bracket 1. A guide motor 12, which is pulsively connected to the guide roller 11, is installed on the other side of the top of the edge-turning bracket 1. An edge-turning conveyor belt 8 is sleeved on both outer ends of the edge-turning roller 7. A drive motor 4, which is pulsively connected to the edge-turning roller 7, is installed at the end of the edge-turning bracket 1. A cloth-turning mechanism 5 is installed at both ends of the top of the edge-turning bracket 1. Rectangular grooves are also provided at both ends of the top of the edge-turning bracket 1. A cloth edge unfolding mechanism 9 is installed inside each of the two rectangular grooves. The cloth edge unfolding mechanism 9 is located between the guide roller 11 and the edge-turning conveyor belt 8.

[0021] In this invention, in the filter press system, after the mud layer is subjected to high-pressure filtration, the filter cloth wrapping the mud layer is fed into the mud cake under the conveying of rollers. However, the edges of the filter cloth wrapping the mud layer will fold during the wrapping and filtration processes. During the winding process, when the filter cloth enters the adjusting slide plate 10, the adjusting roller mechanism 2 squeezes the two sides of the filter cloth, constraining the filter cloth in the middle area of ​​the flange bracket 1, and pushing the mud layer at the edge of the filter cloth, so that the tightly adhering edges of the filter cloth are initially dispersed. Afterward, the filter cloth edges unfold. Mechanism 9, the edge unfolding mechanism 9, moves outward to disperse and unfold the edge of the filter cloth a second time, avoiding the filter cloth edge from being tightly pressed at the fold. The loose filter cloth edge then enters the area between the fabric turning mechanism 5 and the edge turning conveyor belt 8. The fabric turning mechanism 5 forms an L-shaped protrusion above the edge turning conveyor belt 8. The bottom of the fabric turning mechanism 5 is inserted into the folded filter cloth. During the rolling process, the edge of the filter cloth will automatically turn open, thereby avoiding the edge from folding during the rolling process. This realizes automatic fabric turning operation when the filter cloth is rolled up, saving labor costs.

[0022] As a further embodiment of the present invention, the adjusting roller mechanism 2 includes a main roller body 21 rotatably mounted on the flange bracket 1, and a plurality of driving teeth 22 are provided in the middle of the main roller body 21. An outer cylinder body 23 is sleeved on the outside of the main roller body 21, and a transmission groove 24 that cooperates with the driving teeth 22 is provided inside the outer cylinder body 23. Adjusting discs 25 with a frustum-shaped structure are provided at both ends of the outer cylinder body 23. In the present invention, there is a gap between the main roller body 21 and the outer cylinder body 23, and the main roller body 21 and the outer cylinder body 23 are connected by the driving teeth 22 and the transmission groove 24. The adjusting discs 25 at both ends of the outer cylinder body 23 contact the surface of the adjusting slide plate 10 under the action of gravity. When the filter cloth enters between the adjusting disc 25 and the adjusting slide plate 10, the adjusting disc 25 crushes the edge parts on both sides of the filter cloth. By applying external pressure to the edge of the filter cloth, the edge of the filter cloth is pressed up, changing the tight state of the edge of the filter cloth.

[0023] As a further embodiment of the present invention, the adjusting roller mechanism 2 also includes a plurality of electric telescopic rods 29 fixedly mounted on the flanging bracket 1, and an annular movable member 28 is installed between the ends of the electric telescopic rods 29. A plurality of balls 27 are rolledly mounted on the front end of the annular movable member 28. A push ring 26 is installed on the outer side of the adjusting disc 25 by a spring, and an annular groove that cooperates with the balls 27 is provided on the outer side of the push ring 26. In the present invention, the outer cylinder 23 is axially slidably connected to the main roller 21, and the positions of the outer cylinder 23 and the adjusting disc 25 on the adjusting slide plate 10 are affected by the electric telescopic rods 29 on both sides. The push ring 26 is pushed by the electric telescopic rods 29 at both ends, the annular movable member 28 and the balls 27, thereby changing the left and right distance between the adjusting disc 25 and the filter cloth below it, effectively limiting the filter cloth and preventing the filter cloth from running off-center. At the same time, the pressure range of the adjusting disc 25 on the edge of the filter cloth is effectively controlled, improving the stability of the automatic flanging of the filter cloth.

[0024] As a further embodiment of the present invention, the selvage unfolding mechanism 9 includes a U-shaped mounting frame 91 fixedly connected to the flanging bracket 1. The front end of the U-shaped mounting frame 91 is equipped with two vertically distributed fabric spreading brackets 92 via a torsion spring shaft. A fabric spreading motor 93 is installed in the middle of the fabric spreading bracket 92, and a flattening wheel 94 is provided on the outer side of the fabric spreading motor 93. In the present invention, the selvage unfolding mechanism 9 is provided with two synchronously rotating flattening wheels 94. The flattening wheels 94 are inclined at 30-60° to the edge of the filter cloth. When the filter cloth moves forward, the flattening wheels 94 distributed on the upper and lower surfaces of the filter cloth form an outward pulling force on the edge of the filter cloth, thereby separating the tightly attached wrinkled areas and improving the subsequent flanging efficiency of the filter cloth edge.

[0025] As a further embodiment of the present invention, the outer side of the flattening wheel 94 is provided with multiple inclined elastic rods, and the outer end of the elastic rods is provided with an elastic flat plate 95. In the present invention, when the flattening wheel 94 rotates, it relies on the outer flat plate 95 to perform frictional motion on the surface of the filter cloth, unfolding the wrinkled and overlapping parts of the filter cloth edge. When the filter cloth has holes or the edge has threads or other damage, the flat plate 95 inserts into the hole of the filter cloth or is tangled by the threads, and generates elastic deformation. The flat plate 95 and the elastic rods tend to be in a straight line state. By changing the state in time through elastic deformation, it separates from the broken parts of the filter cloth without manual intervention, thereby improving the efficiency and stability of the filter cloth flipping.

[0026] As a further embodiment of the present invention, the fabric unfolding mechanism 9 also includes an unfolding electric push rod 96 fixedly installed in the middle of the U-shaped mounting frame 91, and a limiting member 97 is installed at the end of the unfolding electric push rod 96. The front end of the limiting member 97 is provided with a C-shaped groove that cooperates with the fabric unfolding bracket 92. In the present invention, the fabric unfolding bracket 92 is distributed at a 45° angle with the U-shaped mounting frame 91 under the action of the torsion spring shaft. When the flattening wheel 94 contacts the filter cloth surface, there is friction. The fabric unfolding bracket 92 overcomes the torque of the torsion spring shaft and swings. The outer side of the fabric unfolding bracket 92 is limited by the groove of the limiting member 97, which effectively limits the swing range of the fabric unfolding bracket 92, controls the swing range of the flattening wheel 94, and enhances the unfolding effect on the wrinkles and overlapping parts of the filter cloth edge.

[0027] As a further embodiment of the present invention, the fabric turning mechanism 5 includes a fixed base plate 51 fixedly mounted on the turning bracket 1. A swing rod 55 is rotatably mounted at the top center of the fixed base plate 51. A limiting rod 54 cooperating with the swing rod 55 is mounted on the top side of the fixed base plate 51. A connecting bolt 52 is also mounted on the top of the fixed base plate 51. A tension spring 53 is installed between the connecting bolt 52 and the swing rod 55. An L-shaped adjusting frame 56 is fixedly mounted on the side of the swing rod 55, and a fabric turning plate 57 is mounted at the bottom end of the adjusting frame 56. In this invention, the swing rod 55 and... The fixed base plates 51 are connected by bearings, allowing the fixed base plates 51 to rotate. The limiting rod 54 limits the swing rod 55. The swing rod 55 can rotate under external force and automatically sticks to the limiting rod 54 when there is no external force, adjusting the fabric turning plate 57 to a suitable height position. The bottom of the fabric turning plate 57 is flush with the upper surface of the turning conveyor belt 8, so that the fabric turning plate 57 is inserted into the folded filter cloth. Under the pulling force of the rolled cloth, the edge of the filter cloth will automatically turn open along the edge of the fabric turning plate 57, thereby realizing automatic fabric turning during the filter cloth winding process, saving labor costs.

[0028] As a further embodiment of the present invention, the surface of the swing rod 55 is provided with two horizontally distributed first strip-shaped holes, and the surface of the adjusting frame 56 is provided with two vertically distributed second strip-shaped holes. The swing rod 55 and the adjusting frame 56 are fixedly connected by the first strip-shaped holes, the second strip-shaped holes and the bolts inserted inside them. The front end of the flipping plate 57 has a duckbill-shaped structure. In the present invention, the swing rod 55 and the adjusting frame 56 are connected by strip-shaped holes and bolts, which can realize the adjustment of the adjusting frame 56 in four directions: up, down, left, and right. The front end of the flipping plate 57 is distributed in a duckbill arc shape, so the flipping plate 57 will not damage the filter cloth when it rubs against the filter cloth surface.

[0029] As a further embodiment of the present invention, the adjusting frame 56 includes a vertical plate 561 connected to the swing rod 55 and a horizontal plate 562 connected to the fabric turning plate 57. An upper ring 563 and a lower ring 564 are rotatably connected between the vertical plate 561 and the horizontal plate 562. A torsion spring is installed between the interior of the upper ring 563 and the lower ring 564. An arc-shaped tooth 565 is provided at the bottom of the upper ring 563, and an arc-shaped groove matching the arc-shaped tooth 565 is provided at the bottom of the lower ring 564. In this invention, the arrangement of the upper ring 563 and the lower ring 564 allows the fabric turning plate 57 at the bottom to rotate slightly. When the fabric turning plate 57 encounters wrinkles or overlapping parts on the filter cloth surface, or leaks appearing after the filter cloth has been used for a period of time... In special circumstances such as holes or loose threads on the filter cloth, the fabric turning plate 57 may become stuck in the hole or get tangled in the thread, hindering its movement. If no adjustment is made, the filter cloth will be torn. Therefore, a rotating structure of the tension spring 53 and a small-amplitude swing structure of the fabric turning plate 57 are designed. Once the above special circumstances occur, the fabric turning plate 57 will rotate under the action of the filter cloth until the swing rod 55 is perpendicular to the turning roller 7. The fabric turning plate 57 continues to rotate outward, and the fabric turning plate 57 is distributed at an obtuse angle with the edge of the filter cloth. The filter cloth can be easily separated from the fabric turning plate 57. After separation, the fabric turning plate 57 returns to position one under the action of the tension spring 53 and the limiting rod 54 and continues to work, realizing automatic fabric turning throughout the entire fabric rolling process without manual intervention.

[0030] As a further embodiment of the present invention, a rotatably connected support roller 6 is also installed on the top of the flange bracket 1, and the support roller 6 is distributed between the two fabric edge unfolding mechanisms 9. In the present invention, when the filter cloth passes through the support roller 6, the middle part of the filter cloth is supported by the support roller 6, and the edge of the filter cloth is concave downward under the action of gravity. The edge of the filter cloth cooperates with the fabric edge unfolding mechanism 9 to provide room for the oblique pulling force of the fabric edge unfolding mechanism 9, thereby improving the unfolding efficiency of the overlapping and folded parts of the filter cloth edge.

[0031] During use, when the filter cloth enters the adjustable sliding plate 10 during the filter cloth winding process, the adjustable roller mechanism 2 squeezes the two sides of the filter cloth, constraining the filter cloth in the middle area of ​​the flanging bracket 1, and pushes the mud layer at the edge of the filter cloth, so that the tightly attached filter cloth edges are initially dispersed. Then, the filter cloth edge enters the cloth edge unfolding mechanism 9, which moves outward to further disperse and unfold the filter cloth edge, avoiding the filter cloth edge being tightly attached at the fold. The loose filter cloth edge then enters the area between the cloth turning mechanism 5 and the flanging conveyor belt 8. The cloth turning mechanism 5 forms an L-shaped protrusion above the flanging conveyor belt 8. The bottom of the cloth turning mechanism 5 is inserted into the folded filter cloth. During the winding process, the filter cloth edge will automatically unfold, thereby avoiding the folding phenomenon of the filter cloth edge during winding, realizing automatic cloth turning operation during filter cloth winding, saving labor costs.

[0032] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic edge-turning device for filter cloth used in filter pressing, comprising an edge-turning bracket (1), wherein an adjustable sliding plate (10) is installed at the lower end of one side of the top of the edge-turning bracket (1), characterized in that, The top side of the flanging bracket (1) is equipped with a rotatably connected adjusting roller mechanism (2), and the end of the flanging bracket (1) is equipped with an adjusting motor (3) that is connected to the adjusting roller mechanism (2). The middle part of the flanging bracket (1) is equipped with a rotatably connected guide roller (11), and the end of the flanging bracket (1) is equipped with a guide motor (12) that is connected to the guide roller (11). The other side of the top of the flanging bracket (1) is equipped with multiple rotatably connected flanging rollers (7), and both ends of the flanging rollers (7) are fitted with flanging conveyor belts (8). The end of the flanging bracket (1) is equipped with a drive motor (4) that is connected to the flanging rollers (7). Both ends of the top of the flanging bracket (1) are equipped with fabric turning mechanisms (5). Both ends of the top of the flanging bracket (1) are also provided with rectangular grooves, and both rectangular grooves are equipped with fabric edge unfolding mechanisms (9). The fabric edge unfolding mechanisms (9) are located between the guide roller (11) and the flanging conveyor belt (8).

2. The automatic edge-turning device for filter cloth for filter pressing according to claim 1, characterized in that, The adjusting roller mechanism (2) includes a main roller body (21) rotatably mounted on the flange bracket (1), and a plurality of drive teeth (22) are provided in the middle of the main roller body (21). An outer cylinder body (23) is sleeved on the outside of the main roller body (21), and a transmission groove (24) that cooperates with the drive teeth (22) is provided inside the outer cylinder body (23). Adjusting discs (25) with frustum-shaped structures are provided at both ends of the outer cylinder body (23).

3. The automatic edge-turning device for filter cloth for filter pressing according to claim 2, characterized in that, The adjusting roller mechanism (2) also includes multiple electric telescopic rods (29) fixedly installed on the flange bracket (1), and an annular movable part (28) is installed between the ends of the electric telescopic rods (29). Multiple balls (27) are rolled on the front end of the annular movable part (28). A push ring (26) is installed on the outer side of the adjusting disc (25) by a spring, and an annular groove that cooperates with the balls (27) is provided on the outer side of the push ring (26).

4. The automatic edge-turning device for filter cloth in filter press according to claim 1, characterized in that, The fabric edge unfolding mechanism (9) includes a U-shaped mounting frame (91) fixedly connected to the flange bracket (1), and two fabric unfolding brackets (92) distributed vertically are installed inside the front end of the U-shaped mounting frame (91) through a torsion spring shaft. A fabric unfolding motor (93) is installed in the middle of the fabric unfolding bracket (92), and a flattening wheel (94) is provided on the outside of the fabric unfolding motor (93).

5. The automatic edge-turning device for filter cloth in filter press according to claim 4, characterized in that, The outer side of the flattening wheel (94) is provided with a plurality of inclined elastic rods, and the outer end of the elastic rod is provided with a flattening plate (95) with an elastic structure.

6. The automatic edge-turning device for filter cloth for filter pressing according to claim 5, characterized in that, The fabric unfolding mechanism (9) further includes an unfolding electric push rod (96) fixedly installed in the middle of the U-shaped mounting frame (91), and a limiting member (97) is installed at the end of the unfolding electric push rod (96). The front end of the limiting member (97) is provided with a C-shaped groove that cooperates with the fabric unfolding bracket (92).

7. The automatic edge-turning device for filter cloth for filter pressing according to claim 1, characterized in that, The fabric turning mechanism (5) includes a fixed base plate (51) fixedly installed on the turning bracket (1). A swing rod (55) is rotatably installed at the top center of the fixed base plate (51). A limiting rod (54) that cooperates with the swing rod (55) is installed on the top side of the fixed base plate (51). A connecting bolt (52) is also installed on the top of the fixed base plate (51). A tension spring (53) is installed between the connecting bolt (52) and the swing rod (55). An L-shaped adjusting frame (56) is fixedly installed on the side of the swing rod (55), and a fabric turning plate (57) is installed at the bottom of the adjusting frame (56).

8. The automatic edge-turning device for filter cloth for filter pressing according to claim 7, characterized in that, The surface of the swing rod (55) is provided with two horizontally distributed first strip holes, and the surface of the adjustment frame (56) is provided with two vertically distributed second strip holes. The swing rod (55) and the adjustment frame (56) are fixedly connected by the first strip holes, the second strip holes and the bolts inserted inside them, and the front end of the fabric flipping plate (57) has a duckbill-shaped structure.

9. The automatic edge-turning device for filter cloth for filter pressing according to claim 8, characterized in that, The adjusting frame (56) includes a vertical plate (561) connected to the swing arm (55) and a horizontal plate (562) connected to the fabric turning plate (57). An upper ring (563) and a lower ring (564) are provided between the vertical plate (561) and the horizontal plate (562) and are rotatably connected to each other. A torsion spring is provided between the interior of the upper ring (563) and the lower ring (564). An arc-shaped tooth (565) is provided at the bottom of the upper ring (563), and an arc-shaped groove that matches the arc-shaped tooth (565) is provided at the bottom of the lower ring (564).

10. An automatic edge-turning device for filter cloth in filter press according to claim 6, characterized in that, The top of the flange bracket (1) is also equipped with a rotatably connected support roller (6), and the support roller (6) is distributed between the two fabric edge unfolding mechanisms (9).

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