Automatic filter cloth flattening device for filter pressing

Abstract

The invention belongs to the technical field of filter cloth treatment, particularly relates to an automatic flattening device for filter cloth for filter pressing, and provides the following scheme aiming at the problem that the filter cloth in the later period is easy to roll and deviate because the folded filter cloth cannot be uniformly flattened at present. The machine frame comprises a cross beam frame, a first base and a second base, the first base and the second base are mutually symmetrical and integrally of an L-shaped plate structure, a first lower cloth spreading roller and a second upper cloth spreading roller are arranged between the first base and the second base, roller bodies of the first lower cloth spreading roller and the second upper cloth spreading roller are parallel and horizontal, and the first lower cloth spreading roller and the second upper cloth spreading roller are the same in structure. Symmetrical spiral ribs of which the ends are connected are arranged on the surface, close to the middle part, of the roller body of the upper cloth spreading roller II, when a tight filter cloth body passes through the spiral ribs on the surface of the upper cloth spreading roller II or the surface of the lower cloth spreading roller I, the friction force can be increased by contact between the wrinkled positions and the surfaces of the convex spiral ribs, and the component force is flattening force towards two ends; in other words, the filter cloth is uniformly pulled towards the two sides by the rotating spiral ribs, so that the wrinkled filter cloth body is slowly flattened.

Description

TECHNICAL FIELD

[0001] The present application relates to filter cloth processing technical field, especially to a filter cloth automatic flattening device for filter pressing. BACKGROUND

[0002] In many industrial processes, wastewater containing harmful substances will be produced, such as chemical industry, papermaking, power industry, etc. Filter cloth can be used to remove oil, chemicals and other pollutants in wastewater, to ensure that the discharged water quality meets the standard, in order to improve the utilization rate of filter cloth, the filter cloth is often cleaned.

[0003] However, after high-pressure dewatering, the filter cloth is generally wrinkled, if it is not flattened, it will be folded in the middle during the later rolling process, and then the filter cloth roll will be offset, the existing technology is to manually pull the wrinkled filter cloth to both sides, this way not only increases the labor intensity of workers, but also the force during pulling is not uniform, which still causes the filter cloth width to be different, in view of the current situation that the wrinkled filter cloth cannot be evenly flattened, which leads to the filter cloth being easily offset during later period, we propose a new filter cloth automatic flattening device for filter pressing. SUMMARY

[0004] In order to overcome the problem that the wrinkled filter cloth cannot be evenly flattened, which leads to the filter cloth being easily offset during later period, the present application provides a filter cloth automatic flattening device for filter pressing: Specifically, a filter cloth automatic flattening device for filter pressing is provided, which comprises a rack, the rack comprises a cross beam frame and two mutually symmetrical bases one and two which are L-shaped plate structures, two parallel and horizontal lower and upper flattening rollers are arranged between the base one and the base two, the lower and upper flattening rollers are the same structure, helical ribs are symmetrically arranged on the surface of the roller body of the upper flattening roller near the middle part, the lower and upper flattening rollers are connected by a channel, the cross beam frame is arranged above the upper flattening roller, and vertical electric push rods are arranged on both sides of the cross beam frame near the upper flattening roller, a sliding pressure roller frame is fixed between the bottom ends of the two electric push rods, the sliding pressure roller frame comprises an H-shaped truss arranged above the upper flattening roller, and a hanging rod is fixed to the lower surface of the H-shaped truss near each corner, two parallel reversing pressure rollers are arranged between the bottom ends of the four hanging rods and located on both sides of the upper flattening roller, the axis of the reversing pressure roller is parallel to the axis of the upper flattening roller, in the winding state, the two reversing pressure rollers are pressed below the two sides of the lower flattening roller, in the unwinding state, the sliding pressure roller frame carries the two reversing pressure rollers and moves upward to the position above the two sides of the upper flattening roller.

[0005] Preferably, the two sides of the base one and base two are fixed with mutually parallel support columns near the top end, and the cross beam frame is fixed at the top of the two support columns near the two ends, the side of the cross beam frame is welded with a push rod fixed frame near the two ends to fix the electric push rod, which can increase the stability of the whole machine frame.

[0006] Preferably, the vertical plate of the base one and base two is provided with two bearing mounting holes, and the four bearing mounting holes are embedded with anti-coming-off bearing sets, the two ends of the upper spreader roller two are provided with roller heads one, the front and rear ends of the roller head one are fixed with a driving pulley and a driven worm gear plate through the corresponding anti-coming-off bearing sets, the two ends of the lower spreader roller one are provided with roller heads two, the front and rear ends of the roller head two pass through the lower two anti-coming-off bearing sets, and the lower spreader roller one is fixed with a driven pulley which is in transmission connection with the driving pulley at the end close to the driving pulley, and the same transmission belt is wound between the circumferential outer walls of the driving pulley and the driven pulley, and the transmission belt is in a taut state when the lower spreader roller one below needs to be controlled to rotate; the horizontal plate of the base two is fixed with a speed reducer motor, and the output shaft of the speed reducer motor is fixed with a worm which is in mesh with the driven worm gear plate.

[0007] Preferably, the vertical plate of the base one is provided with a horizontal sliding groove between the driving pulley and the driven pulley, and the sliding groove is slidingly connected with a wheel abutting frame, the wheel abutting frame is provided with an abutting roller which abuts the inner side of the transmission belt from inside to outside, the vertical plate of the base one is fixed with a guide fixed block away from the sliding groove, the guide fixed block is provided with two horizontal sliding insertion holes near the wheel abutting frame, the two sliding insertion holes are slidingly connected with sliding guide rods, the ends of the two sliding guide rods close to the wheel abutting frame are fixed on the wheel abutting frame, and the other ends of the two sliding guide rods are fixed with the same connecting block; the guide fixed block and the wheel abutting frame are fixed with a return tension spring; when the transmission belt needs to be in a taut state, the connecting block at one end of the wheel abutting frame is only needed to be horizontally pressed until the abutting roller pushes the transmission belt to a taut state.

[0008] Preferably, the upper surface of the guide fixed block is provided with a pulley groove, and the pulley groove is provided with a fixed pulley two, the side of the cross beam frame is fixed with a fixed pulley one near the upper side of the pulley groove, the fixed pulley one is provided with a fixed pulley two, the fixed pulley one and the fixed pulley two are wound with a zigzag wound pull rope, one end of the pull rope is fixed on the connecting block, the other end of the pull rope is fixed with a tension spring, and the end of the tension spring close to the sliding pressure roller frame is fixed with an extension clamping block, the extension clamping block is fixed on the sliding pressure roller frame, when the transmission belt needs to be changed from a taut state to a relaxed state, the sliding pressure roller frame is only needed to be controlled to rise, and the unwinding state can be realized.

[0009] Preferably, the horizontal plate of the base one and the base two is fixed with a support rib plate between the bottom end of the support column at the top end, and a strip-shaped hole is arranged on the support rib plate close to the front face for the horizontal passing of the connecting block, thereby improving the stability of the device.

[0010] Preferably, two horizontal beam pull rods are fixed between the vertical plates of the base one and the base two, and the two beam pull rods are both below the lower spreading roller one.

[0011] Preferably, the roller body length of the cloth winding roller is less than the roller body length of the upper cloth spreading roller two, and the width of the filter cloth body is less than the distance between the two ends of the two spiral rib muscles on the upper cloth spreading roller two; by such arrangement, the wrinkled filter cloth body can be flattened to the original width.

[0012] Preferably, the upper surface of the base two is further provided with a beating mechanism, and the beating mechanism comprises an L-shaped mounting frame fixed on the horizontal plate of the base two and extending towards the rack direction, the crossbeam of the L-shaped mounting frame is an inclined plate, the upper surface of the inclined plate is parallel to the surface of the filter cloth body close to the cloth winding roller in the cloth winding state, two end portions of the inclined plate are respectively embedded with a radial bearing, and two radial bearings are respectively connected with a short shaft one and a short shaft two, the short shaft two is close to the rack, the upper and lower ends of the short shaft two are respectively fixed with a half gear one and a driven bevel gear two, the top end of the short shaft two is fixed with a reset sweeper engaged with the half gear one, the circumferential outer wall of the reset sweeper away from the half gear one is fixed with a beating rod extending below the filter cloth body, the end portion of the L-shaped mounting frame close to the short shaft one is fixed with an upward extending L-shaped spring fixing block, and a reset spring is fixed between the top end of the L-shaped spring fixing block and the reset sweeper.

[0013] Preferably, the vertical plate of the base two is fixed with a shaft rod seat close to the end portion of the worm, and a connecting shaft is rotatably connected to the shaft rod seat, one end of the connecting shaft is fixed to the end portion of the worm, and the other end is fixed with a driving bevel gear one engaged with the driven bevel gear two, thereby providing stable power output for the beating mechanism.

[0014] The beneficial effects in the application are: 1. By arranging the spiral rib muscles symmetrically spiraling to both ends, when the tight filter cloth body passes through the spiral rib muscles on the surface of the upper cloth spreading roller two or the lower cloth spreading roller one, the contact between the wrinkle position and the convex surface of the spiral rib muscle increases the friction force, the component force is the flattening force towards both ends, that is, the rotated spiral rib muscle uniformly pulls to both sides, and then slowly flattens the wrinkled filter cloth body, and the sliding press roller frame and the lower cloth spreading roller one are arranged to ensure that the filter cloth body can be flattened in both the cloth winding and cloth unwinding states.

[0015] 2. By setting the conveying belt in a relaxed state when the cloth is being unwound, the lower unwinding roller can be kept in a stationary state, thus preventing the phenomenon of burrs on the surface of the filter cloth body being wound into the lower unwinding roller, and improving the overall safety performance.

[0016] 3. By setting the reset sweeper and the reset spring, when it is necessary to control the intermittent beating of the beating rod on the surface of the filter cloth body, the half gear one can be continuously driven to rotate by controlling the driven bevel gear two, thus accelerating the flattening of the filter cloth body at the wrinkle position. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is an overall structure schematic diagram of the present application in the cloth unwinding state; Figure 2 is a half cut structure schematic diagram of the present application in the cloth unwinding state; Figure 3 is an overall structure schematic diagram of the present application in the cloth winding state; Figure 4 is another side structure schematic diagram of the present application in the cloth winding state; Figure 5 is a front view of the present application in the cloth winding state; Figure 6 is a cut structure schematic diagram of the present application along the line A-A; Figure 5 is a structure schematic diagram of the rack in the present application; Figure 7 is an exploded view of the beating mechanism in the present application. Figure 8 In the figure: 1, base one; 2, lower unwinding roller one; 3, spiral rib; 4, reversing compression roller; 5, base two; 501, shaft rod seat; 6, L-shaped mounting bracket; 601, L-shaped spring fixing block; 7, cloth winding roller; 8, driven worm wheel disc; 9, sliding compression roller bracket; 901, extension clamping block; 10, push rod fixing frame; 11, electric push rod; 12, cross beam bracket; 121, support column; 13, fixed pulley bracket one; 14, upper unwinding roller two; 15, pull rope; 16, guide fixing block; 161, pulley groove; 17, conveying belt; 18, driven pulley; 19, abutting roller bracket; 20, tension spring; 21, driving pulley; 22, fixed pulley two; 23, sliding guide rod; 24, speed reduction motor; 25, driving bevel gear one; 26, half gear one; 27, reset sweeper; 2701, beating rod; 28, bearing mounting hole; 29, driven bevel gear two; 30, reset spring.

[0018] DETAILED DESCRIPTION

[0019] ​The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0020] In this embodiment, referring to Figures 1-8 The automatic flattening device for filter cloth of filter pressing comprises a rack, the rack comprises a cross beam frame 12 and two bases one 1 and two bases two 5 which are mutually symmetrical and in the form of L-shaped plate structure, two parallel and horizontal lower cloth flattening rollers one 2 and upper cloth flattening rollers two 14 are arranged between the two bases one 1 and two bases two 5, the lower cloth flattening rollers one 2 and the upper cloth flattening rollers two 14 are of the same structure, helical ribs 3 which are mutually symmetrical and connected at the ends are arranged on the surface of the roller body of the upper cloth flattening rollers two 14 near the middle part, a channel is left between the lower cloth flattening rollers one 2 and the upper cloth flattening rollers two 14 to allow the filter cloth body to be flattened to pass through, the cross beam frame 12 is horizontally arranged above the upper cloth flattening rollers two 14, and the side of the cross beam frame 12 near the upper cloth flattening rollers two 14 is arranged with two vertical electric push rods 11 near the two ends, a same sliding pressure roller frame 9 is fixed between the bottom ends of the extension rods of the two electric push rods 11, the sliding pressure roller frame 9 comprises an H-shaped truss arranged directly above the upper cloth flattening rollers two 14, a hanging rod is fixed to the lower surface of the H-shaped truss near each corner, two reversing pressure rollers 4 which are mutually parallel and arranged on the two sides of the upper cloth flattening rollers two 14 are arranged between the bottom ends of the four hanging rods, the axis of the reversing pressure rollers 4 is parallel to the axis of the upper cloth flattening rollers two 14, in the cloth winding state, the two reversing pressure rollers 4 are pressed to positions below the two sides of the lower cloth flattening rollers one 2, in the cloth unwinding state, the sliding pressure roller frame 9 carries the two reversing pressure rollers 4 to move upwards to positions above the two sides of the upper cloth flattening rollers two 14; by arranging the helical ribs 3 which are mutually symmetrical and spiral to the two ends, when the taut filter cloth body passes through the helical ribs 3 on the surface of the upper cloth flattening rollers two 14 or the lower cloth flattening rollers one 2, the friction force is increased by the contact between the wrinkle position and the surface of the protruding helical ribs 3, the component force of the friction force is the flattening force towards the two ends, that is, the helical ribs 3 which are rotated pull evenly to the two sides, and then the taut filter cloth body is slowly flattened, the arrangement of the sliding pressure roller frame 9 and the lower cloth flattening rollers one 2 ensures that the filter cloth body passing through can be flattened in both the cloth winding state and the cloth unwinding state.

[0021] The two bases one 1 and two bases two 5 are fixed with mutually parallel support columns 121 near the top ends of the two sides opposite to each other, and the cross beam frame 12 is fixed at the top ends of the two support columns 121 near the two ends, the side surfaces of the cross beam frame 12 are welded with push rod fixing frames 10 near the two ends to fix the electric push rods 11, the arrangement of the support columns 121 and the push rod fixing frames 10 can increase the stability of the whole rack.

[0022] Referring to Figure 3 and Figure 7The vertical plate of the base one 1 and the vertical plate of the base two 5 are both provided with two bearing mounting holes 28 from top to bottom, and each of the four bearing mounting holes 28 is embedded with an anti-disengagement bearing set. Both ends of the upper spreading roller two 14 are provided with roller heads one. The front and rear ends of the roller heads one pass through the corresponding anti-disengagement bearing sets and are respectively fixed with the driving pulley 21 and the driven worm disc 8. Both ends of the lower spreading roller one 2 are provided with roller heads two, and the front and rear ends of the roller heads two pass through the two anti-disengagement bearing sets below. The lower spreading roller one 2 is fixed with the driven pulley 18 which forms a transmission connection with the driving pulley 21 at one end close to the driving pulley 21. The same conveying belt 17 is wound between the circumferential outer walls of the driving pulley 21 and the driven pulley 18. When it is necessary to control the rotation of the lower spreading roller one 2 below, the conveying belt 17 is controlled to be in a taut state, and the safety performance of the whole is improved.

[0023] With reference to Figure 1 , Figure 3 and Figure 7 , the vertical plate of the base one 1 is provided with a horizontal sliding groove between the driving pulley 21 and the driven pulley 18, and the sliding groove is slidably connected with the wheel abutting frame 19. The wheel abutting frame 19 is provided with an abutting roller which abuts the inner side of the conveying belt 17 from the inside to the outside. The vertical plate of the base one 1 is fixed with the guide fixed block 16 away from the sliding groove. The guide fixed block 16 is provided with two horizontal sliding insertion holes close to the wheel abutting frame 19. The two sliding insertion holes are slidably connected with the sliding guide rods 23. The sliding guide rods 23 are fixed on the wheel abutting frame 19 at one end close to the wheel abutting frame 19. The other ends of the two sliding guide rods 23 are fixed with the same connecting block. The guide fixed block 16 and the wheel abutting frame 19 are fixed with the return tension spring. When it is necessary to make the conveying belt 17 in a taut state, the connecting block is only horizontally extruded at one end of the wheel abutting frame 19 until the abutting roller pushes the conveying belt 17 outward to a taut state.

[0024] With reference to Figure 1 , Figure 3 and Figure 7The upper surface of the guide fixed block 16 is provided with a pulley groove 161 in the middle, and a fixed pulley two 22 is arranged in the pulley groove 161. The side of the cross beam frame 12 is fixed with a fixed pulley frame one 13 above the pulley groove 161, and a fixed pulley one is arranged on the fixed pulley frame one 13. The fixed pulley one and the fixed pulley two 22 are wound with a zigzag winding pull rope 15, one end of which is fixed on the connecting block, and the other end of which is fixed with a tension spring 20. One end of the tension spring 20 is fixed with an extension clamping block 901 close to one end of the sliding pressure roller frame 9, and the extension clamping block 901 is fixed on the sliding pressure roller frame 9. When it is needed to change the conveying belt 17 from a taut state to a relaxed state, only the sliding pressure roller frame 9 is controlled to rise, and the cloth unwinding state can be realized.

[0025] With reference to Figure 3 and Figure 4 The horizontal plate of the base one 1 and the base two 5 is fixed with a support rib plate between the bottom end of the support column 121 at the top end, and a strip-shaped hole is arranged on the support rib plate close to the front surface for the horizontal passing of the connecting block, so as to improve the stability of the device.

[0026] With reference to Figure 3 The vertical plate of the base one 1 and the base two 5 is fixed with two horizontal cross beam pull rods, and the two cross beam pull rods are located below the lower cloth unwinding roller one 2.

[0027] In the present application, the length of the roller body of the cloth winding roller 7 is less than the length of the roller body of the upper cloth unwinding roller two 14, and the width of the filter cloth body is less than the distance between the two ends of the two spiral rib 3 on the upper cloth unwinding roller two 14. Through such arrangement, the wrinkled filter cloth body can be flattened to the original width.

[0028] With reference to Figure 4 、 Figure 7 and Figure 8The upper surface of the base two 5 is further provided with a beating mechanism, and the beating mechanism comprises an L-shaped mounting frame 6 fixed on the horizontal plate of the base two 5 and extending towards the rack, the cross beam of the L-shaped mounting frame 6 is an inclined plate, the upper surface of the inclined plate is parallel to the surface of the filter cloth body close to the cloth winding roller 7 in the cloth winding state, the two ends of the inclined plate are respectively embedded with a radial bearing, and the two radial bearings are respectively connected with a short shaft one and a short shaft two, the short shaft two is close to the rack, the upper and lower ends of the short shaft two are respectively fixed with a half gear one 26 and a driven bevel gear two 29, the top end of the short shaft two is fixed with a reset sweeper 27 meshing with the half gear one 26, the circumferential outer wall of the reset sweeper 27 is fixed with a beating rod 2701 extending below the filter cloth body on the side away from the half gear one 26, the end of the L-shaped mounting frame 6 close to the short shaft one is fixed with an L-shaped spring fixing block 601 extending upwards, and a reset spring 30 is fixed between the top end of the L-shaped spring fixing block 601 and the reset sweeper 27, when it is necessary to control the beating rod 2701 to beat the surface of the filter cloth body intermittently, it is only necessary to control the driven bevel gear two 29 to drive the half gear one 26 to rotate continuously.

[0029] Referring to Figure 4 , Figure 7 and Figure 8 , the vertical plate of the base two 5 is fixed with a shaft rod seat 501 close to the end of the worm, and a connecting shaft is rotatably connected to the shaft rod seat 501, one end of the connecting shaft is fixed to the end of the worm, and the other end is fixed with a driving bevel gear one 25 meshing with the driven bevel gear two 29, which can provide stable power output for the beating mechanism.

[0030] Working principle: the device has two states when running, namely the cloth winding state and the cloth unwinding state, first, the filter cloth body to be flattened is fixed on the outer wall of the cloth winding roller 7 through the passage between the upper cloth unwinding roller two 14 and the lower cloth unwinding roller one 2, then the extension rods of the two electric push rods 11 are controlled to extend until the two reversing pressure rollers 4 at the bottom end of the sliding pressure roller frame 9 are pressed to the positions close to the lower sides of the lower cloth unwinding roller one 2, at this time, the filter cloth body is in a tight state and is completely pressed on the roller surface of the lower cloth unwinding roller one 2, then the speed reducer motor 24 and the cloth winding roller 7 are started, and the directions of rotation of the two are consistent, since the spiral ribs 3 symmetrically spiraling to the two ends are arranged, when the tight filter cloth body passes through the spiral ribs 3 on the surface of the lower cloth unwinding roller one 2, the friction force is increased due to the contact between the wrinkle position and the convex surface of the spiral ribs 3, and the component force is the flattening force towards the two ends, that is, the rotating spiral ribs 3 evenly pull to the two sides, and then the wrinkled filter cloth body is slowly flattened; at the same time, the beating rod 2701 continuously beats the surface of the filter cloth body which has not completely recovered after being flattened under the driving of a series of transmission mechanisms, assisting the recovery to the flat state; After the winding is finished, the winding roller 7 is reversed to unwind, and at this time, the sliding pressure roller frame 9 is withdrawn upward, and at this time, the filter cloth body is only wound on the outer wall of the second upper spreading roller 14 close to the lower surface, and at this time, the rotation direction of the second upper spreading roller 14 is controlled to be consistent with that of the winding roller 7.

[0031] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change within the technical range disclosed by the present application according to the technical solution and the inventive concept of the present application, which should be covered in the protection scope of the present application.

Claims

1. An automatic filter cloth flattening device for filter press, comprising a frame, the frame including a crossbeam (12) and a base one (1) and a base two (5), wherein a lower spreading roller one (2) and an upper spreading roller two (14) with parallel and horizontal roller bodies are arranged between the base one (1) and the base two (5), the lower spreading roller one (2) and the upper spreading roller two (14) having the same structure, characterized in that, The upper spreading roller 2 (14) has symmetrical spiral ribs (3) connected at the ends near the center of its roller body surface. A channel is left between the lower spreading roller 1 (2) and the upper spreading roller 2 (14). The crossbeam frame (12) is horizontally set above the upper spreading roller 2 (14). The crossbeam frame (12) is provided with vertical electric push rods (11) near both ends on the side of the crossbeam frame (12) near the upper spreading roller 2 (14). The same sliding pressure roller frame (9) is fixed between the bottom ends of the extension rods of the two electric push rods (11). The sliding pressure roller frame (9) includes two reversing pressure rollers (4) that are parallel to each other and located on both sides of the upper spreading roller 2 (14). In the fabric winding state, the two reversing pressure rollers (4) are pressed down to the lower spreading roller 1 (2) and below the sides. In the fabric unwinding state, the sliding pressure roller frame (9) carries the two reversing pressure rollers (4) up to the upper sides of the upper spreading roller 2 (14).

2. The automatic flattening device for filter cloth in filter press according to claim 1, characterized in that, The base one (1) and base two (5) are respectively fixed with parallel support columns (121) on their opposite sides near the top, and the crossbeam frame (12) is fixed at the top of the two support columns (121) near both ends. The sides of the crossbeam frame (12) near both ends are welded with push rod fixing frames (10) for fixing the electric push rod (11).

3. The automatic flattening device for filter cloth in filter press according to claim 2, characterized in that, Both the vertical plates of the base 1 (1) and the base 2 (5) are provided with two bearing mounting holes (28), and anti-detachment bearing assemblies are embedded in the four bearing mounting holes (28). Roller heads 1 are reserved at both ends of the upper spreading roller 2 (14). The front and rear ends of the roller head 1 are fixed with the driving belt pulley (21) and the driven worm gear disc (8) respectively through the corresponding anti-detachment bearing assemblies. Roller heads 2 are reserved at both ends of the lower spreading roller 1 (2), and the front and rear ends of the roller head 2 are respectively fixed with the two lower anti-detachment bearing assemblies. The lower spreading roller 1 (2) is close to the driving belt pulley (21). One end of the pulley (21) is fixed with a driven pulley (18) that forms a transmission connection with the driving pulley (21). The same conveyor belt (17) is wound between the outer circumference of the driving pulley (21) and the driven pulley (18). When it is necessary to control the rotation of the lower spreading roller (2) below, the conveyor belt (17) can be controlled to be in a taut state. A reduction motor (24) is fixed on the upper surface of the horizontal plate of the base (5), and a worm gear that meshes with the driven worm wheel (8) is fixed at the top of the output shaft of the reduction motor (24).

4. The automatic filter cloth flattening device for filter press according to claim 3, characterized in that, The vertical plate of the base (1) has a horizontal groove on the front side between the driving pulley (21) and the driven pulley (18), and a wheel abutment frame (19) is slidably connected at the groove. The wheel abutment frame (19) is provided with a roller abutting against the inner side of the conveyor belt (17) from the inside out. A guide fixing block (16) is fixed on the side of the vertical plate of the base (1) away from the groove, and two horizontal sliding holes are opened on the side of the guide fixing block (16) near the wheel abutment frame (19). Sliding guide rods (23) are slidably connected in both sliding holes. The ends of the two sliding guide rods (23) near the wheel abutment frame (19) are fixed on the wheel abutment frame (19), and the other ends of the two sliding guide rods (23) are fixed with the same connecting block. A reset tension spring is fixed between the guide fixing block (16) and the wheel abutment frame (19).

5. The automatic flattening device for filter cloth in filter press according to claim 4, characterized in that, The upper surface of the guide fixing block (16) is provided with a pulley groove (161) in the middle, and a fixed pulley two (22) is provided in the pulley groove (161). A fixed pulley frame one (13) is fixed on the side of the crossbeam frame (12) near the pulley groove (161), and a fixed pulley one is provided on the fixed pulley frame one (13). A zigzag-wound pull rope (15) is wound between the fixed pulley one and the fixed pulley two (22), and one end of the pull rope (15) is fixed on the connecting block. A tension spring (20) is fixed on the other end of the pull rope (15), and an extension block (901) is fixed on the end of the tension spring (20) near the sliding pressure roller frame (9). The extension block (901) is fixed on the sliding pressure roller frame (9).

6. The automatic flattening device for filter cloth in filter press according to claim 5, characterized in that, Support ribs are fixed between the horizontal plates of base one (1) and base two (5) and the bottom of the support column (121) at their top, and a strip hole is provided on the support rib near the front for the connecting block to pass through horizontally.

7. The automatic flattening device for filter cloth in filter press according to claim 1, characterized in that, Two horizontal crossbeams are fixed between the vertical plates of the base one (1) and the base two (5), and both crossbeams are located below the lower spreading roller one (2).

8. The automatic flattening device for filter cloth in filter press according to claim 1, characterized in that, The length of the roll body of the cloth rolling roller (7) is less than the length of the roll body of the upper spreading roller (14), and the width of the filter cloth body is less than the distance between the two ends of the two spiral ribs (3) on the upper spreading roller (14).

9. The automatic flattening device for filter cloth in filter press according to claim 1, characterized in that, The upper surface of the base 2 (5) is also provided with a beating mechanism, and the beating mechanism includes an L-shaped mounting bracket (6) fixed on the horizontal plate of the base 2 (5) and extending towards the frame. The crossbeam on the L-shaped mounting bracket (6) is an inclined plate, and the upper surface of the inclined plate is parallel to the surface of the filter cloth body near the rolling roller (7) when the cloth is rolled. The two ends of the inclined plate are respectively fitted with radial bearings, and short shaft 1 and short shaft 2 are respectively rotatably connected in the two radial bearings. Half gear 1 (26) is fixed at the upper and lower ends of short shaft 2 respectively. The short shaft is fixed with a reset sweeping wheel (27) that meshes with the half gear (26) and the driven bevel gear (29). A beater (2701) extending to the bottom of the filter cloth body is fixed on the side of the outer circumference of the reset sweeping wheel (27) away from the half gear (26). An upwardly extending L-shaped spring fixing block (601) is fixed at the end of the L-shaped mounting bracket (6) near the short shaft. A reset spring (30) is fixed between the top of the L-shaped spring fixing block (601) and the reset sweeping wheel (27).

10. An automatic filter cloth flattening device for filter press according to claim 9, characterized in that, The vertical plate of the base 2 (5) is fixed with a shaft seat (501) near the end of the worm, and a connecting shaft is rotatably connected to the shaft seat (501). One end of the connecting shaft is fixed to the end of the worm, and the other end is fixed with a driving bevel gear 1 (25) that meshes with the driven bevel gear 2 (29).

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