Preparation device for metal fiber felt production

Abstract

The invention belongs to the technical field of metal fibrofelt preparation, and discloses a preparation device for metal fibrofelt production, which comprises a bottom cylinder and a top frame fixedly connected to the top of the bottom cylinder, and an abrasive belt grinding assembly is fixedly arranged on the front surface of the top frame. A lifting type assembling assembly and an auxiliary adjusting assembly are arranged on the inner side and the outer side of the top frame correspondingly, and a filter screen collecting part for collecting metal fibers is arranged in the bottom cylinder. The abrasive belt grinding assembly and the lifting type assembling assembly are matched with each other, a metal plate is driven to move and make contact with the bottom of the moving abrasive belt, the top of the abutting metal plate is ground through the grinding effect of gravel in the abrasive belt under rapid moving cutting, and metal fibers consistent in specification and size are generated; a conventional drawing method and a turning method are changed, the actual grinding forming operation is simple, the forming quality is stable, the specification and size consistency rate is high, the preparation effect of metal fibers in the metal fiber felt is greatly improved, and the use effect is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal fiber felt preparation, and specifically relates to a preparation device for producing metal fiber felt. Background Art

[0002] Metal fiber sintered felt, as a porous metal material, has been widely used as a filter element in the field of industrial dust removal. At the same time, it can also be used as a porous electrode in the fields of lithium batteries and hydrogen energy in the new energy field.

[0003] In the existing preparation devices for producing metal fiber felt, during use, the metal fibers of the metal fiber sintered felt are usually prepared by the drawing method or the turning method. After preparation, the metal fibers are distributed and laid flat to obtain a layered metal fiber felt, and then the subsequent sintering process is carried out to complete the complete preparation of the metal fiber sintered felt. However, the existing drawing method requires many processes. The wire needs to be subjected to heat treatment such as annealing and then drawn through multiple eye membranes to stretch the metal wire to a wire diameter of less than 15 microns, resulting in a high manufacturing cost. The turning method uses the self-excited vibration of the turning tool. Since appropriate processing parameters (cutting linear speed and feed rate) are required to trigger the self-excited vibration of the turning tool, and the frequency of the self-excited vibration is not high (below 2KHz), the vibration frequency is unstable and the amplitude is uncontrollable, making it very difficult to cut metal wires with a diameter of less than 15 microns, and the production efficiency is also very low. Neither method can achieve convenient and stable processing and forming of finer metal fibers, thus greatly reducing the preparation efficiency and forming quality of the subsequent complete metal fiber felt, and the use effect is not good. Summary of the Invention

[0004] The purpose of the present invention is to provide a preparation device for producing metal fiber felt to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A preparation device for producing metal fiber felt includes a bottom cylinder and a top frame fixedly connected to the top of the bottom cylinder. A sand belt grinding assembly is fixedly provided on the front of the top frame. Lifting assembly components and auxiliary adjustment components are respectively arranged on the inner and outer sides of the top frame. A filter screen collection part for collecting metal fibers is arranged inside the bottom cylinder. A pump suction assembly is arranged outside the bottom cylinder. The pump suction assembly sucks cutting fluid from below the filter screen collection part in the bottom cylinder and sprays it downward along the upper direction of the filter screen collection part. The sand belt grinding assembly includes a sand belt, a driving roller, and a driven roller. The sand belt is wound around the outside of the driving roller and the driven roller. The driving roller rotates to drive the sand belt to move. The lifting assembly component drives the top of the fixed metal plate to abut against the bottom of the sand belt.

[0006] Preferably, the top of the bottom cylinder is communicated with the top frame. A protective cover is fixedly connected to the top of the bottom cylinder, and the protective cover is located directly in front of the top frame.

[0007] Preferably, the abrasive belt grinding assembly further includes a support plate and a first motor. The support plate is fixed to the front of the top frame. The driving roller and the driven roller are both rotatably mounted on the support plate, and the first motor drives the driving roller to rotate.

[0008] Preferably, the lifting assembly includes a second motor, a fitting groove, a lead screw, a slider, a positioning sleeve, and a locking bolt. The second motor is fixed to the top of the top frame. The fitting groove is formed inside the top frame. The lead screw is rotatably mounted inside the top frame. The slider is threadedly sleeved on the outside of the lead screw and is movably sleeved in the fitting groove. The positioning sleeve is fixedly connected to the outer side of the slider. The locking bolt is threadedly sleeved on the front of the positioning sleeve. The top of the lead screw is fixedly connected to the output shaft of the second motor.

[0009] Preferably, a baffle frame is fixedly connected to the front of the top frame, and the baffle frame is located outside the driven roller.

[0010] Preferably, the pump suction assembly includes a circulation pump, a discharge pipe, and a suction pipe. The circulation pump is fixed to the bracket on the outside of the bottom cylinder. One end of the discharge pipe is fixedly connected to the liquid outlet end of the circulation pump, and the other end of the discharge pipe is fixed to the side of the bottom cylinder. One end of the suction pipe is communicated with the liquid suction end of the circulation pump, and the suction end of the suction pipe is fixedly sleeved in the bottom cylinder.

[0011] Preferably, the filter screen collection part includes a movable frame, a filter screen plate, and filter holes. The movable frame is movably sleeved in the bottom cylinder. The filter screen plate is movably sleeved in the movable frame. The filter holes are formed in the top of the filter screen plate.

[0012] Preferably, the filter screen collection part further includes a sealing cover plate and a second electric push rod. The sealing cover plate is fixedly connected to the end of the movable frame. A socket is formed in the front of the bottom cylinder. The movable frame is inserted into the bottom cylinder along the socket, and the sealing cover plate seals the socket. The second electric push rod is fixed to the inner wall of the movable frame through a side block, and the movable end of the second electric push rod is fixedly connected to the filter screen plate.

[0013] Preferably, the auxiliary adjustment assembly includes a first electric push rod, a cross plate, a connecting plate, and an adjustment roller. The first electric push rod is fixed to the outside of the top frame through a mounting block. The movable end of the first electric push rod is fixedly connected to the cross plate. The connecting plate is fixedly connected to the side of the cross plate and is movably sleeved inside the top frame. The adjustment roller is located inside the abrasive belt and is rotatably mounted between the two connecting plates. The first electric push rod controls the up and down movement of the adjustment roller.

[0014] Preferably, a sliding groove is formed in the back surface of the top frame, the connecting plate is movably sleeved in the sliding groove, a sealing adapter frame is fixedly sleeved on the outer side of the connecting plate, the sealing adapter frame is located inside the top frame, and the sealing adapter frame covers one side of the sliding groove facing the abrasive belt grinding assembly.

[0015] The beneficial effects of the present invention are as follows: 1. By using the mutual cooperation of the abrasive belt grinding assembly and the lifting assembly, the metal plate is driven to move and contact the bottom of the moving abrasive belt. Through the grinding effect of the grit in the abrasive belt, under the rapid movement cutting, the top of the contacting metal plate is ground, and metal fibers with consistent specifications and dimensions are generated. Different from the conventional drawing method and turning method, the actual grinding and forming operation is simple, the forming quality is stable, and the consistency rate of the specifications and dimensions is high, greatly improving the preparation effect of the metal fibers in the metal fiber felt, and the use effect is good.

[0016] 2. Through the grinding preparation of the abrasive belt grinding assembly, and the control of the grinding direction along the outer side surface of the plate towards the inner side surface, and the control of the inlet suction end position of the cutting fluid by the pump suction assembly, as well as the control of the position and direction of the ejection end, and the arrangement of the filter screen collection part. On the one hand, by using the suction pressure at the bottom of the filter screen collection part and the flow effect of the cutting fluid, the metal fibers falling into the bottom cylinder are stacked and attached to the front surface of the filter screen collection part under the flow of the cutting fluid to complete synchronous wet collection and complete the wet forming of the layered metal fiber felt, realizing rapid preparation. On the other hand, in cooperation with the ejected cutting fluid, when guiding the metal fibers to fall, the water flow impacts above the filter screen collection part, and the metal fibers are evenly dispersed by the impact, and under the suction pressure of the bottom suction port, the metal fibers are evenly dispersed, achieving synchronous and rapid completion of the forming preparation of the metal fiber felt while improving the quality of the final forming, and the use effect is good.

[0017] 3. By cooperating with the movement adjustment of the auxiliary adjustment assembly and the contact and push on the outside of the abrasive belt grinding assembly, the position of the outside of the abrasive belt is changed by extrusion, thereby enhancing the tension of the abrasive belt and avoiding slack. The actual adjustment is stepless adjustment, and the controllability in the actual grinding preparation process is higher, and it can be adjusted in time according to the slack situation, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic cross-sectional view of the present invention; Figure 3 is an installation schematic diagram of the lifting assembly and the top frame of the present invention; Figure 4 is a schematic diagram of the back surface of the top frame of the present invention; Figure 5 Schematic diagram of the auxiliary adjustment component of the present invention; Figure 6 Schematic diagram of the abrasive belt grinding component of the present invention; Figure 7 Cross-sectional schematic diagram of the bottom cylinder and the filter screen collection component of the present invention; Figure 8 Exploded schematic diagram of the filter screen collection component of the present invention; Figure 9 Schematic diagram of the movement direction of the abrasive belt of the present invention.

[0019] In the figure: 1, bottom cylinder; 2, top frame; 3, abrasive belt grinding component; 31, abrasive belt; 32, driving roller; 33, driven roller; 34, support plate; 35, motor 1; 4, lifting assembly component; 41, motor 2; 42, mating groove; 43, lead screw; 44, slider; 45, positioning sleeve; 46, locking bolt; 5, baffle frame; 6, auxiliary adjustment component; 61, electric push rod 1; 62, cross plate; 63, connecting plate; 64, adjusting roller; 7, filter screen collection part; 71, movable frame; 72, sealing cover plate; 73, filter screen plate; 74, filter holes; 75, electric push rod 2; 8, pump suction component; 81, circulation pump; 82, outlet pipe; 83, suction pipe; 9, protective cover; 10, sliding groove; 11, sealing mating frame. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0021] As Figures 1 to 9 shown, the embodiment of the present invention provides a preparation device for producing metal fiber felt, including a bottom cylinder 1 and a top frame 2 fixedly connected to the top of the bottom cylinder 1. An abrasive belt grinding component 3 is fixedly provided on the front of the top frame 2. A lifting assembly component 4 and an auxiliary adjustment component 6 are respectively provided on the inner and outer sides of the top frame 2. A filter screen collection part 7 for collecting metal fibers is provided inside the bottom cylinder 1. A pump suction component 8 is provided outside the bottom cylinder 1. The pump suction component 8 sucks the cutting fluid from below the filter screen collection part 7 in the bottom cylinder 1 and sprays it downward along the upper direction of the filter screen collection part 7. The abrasive belt grinding component 3 includes an abrasive belt 31, a driving roller 32 and a driven roller 33. The abrasive belt 31 is wound around the outside of the driving roller 32 and the driven roller 33. The driving roller 32 rotates to drive the abrasive belt 31 to move. The lifting assembly component 4 drives the top of the fixed metal plate to abut against the bottom of the abrasive belt 31.

[0022] Example 1: During use, the metal plate to be processed is sleeved into the positioning sleeve 45 of the lifting assembly 4. The locking bolt 46 is rotated to clamp and fix the metal plate in the positioning sleeve 45. The second motor 41 is started to drive the lead screw 43 to rotate, so that the slider 44 slidingly sleeved in the fitting groove 42 moves upward, driving the positioning sleeve 45 to move upward. As the top of the metal plate moves vertically upward, the sand belt grinding assembly 3 is started, causing the first motor 35 to drive the driving roller 32 to rotate, and cooperating with the driven roller 33 to make the sand belt wound around the outside move. As the sand belt moves, the top of the metal plate with the bottom moving upward abuts against the bottom of the sand belt. The fast-moving sand belt makes the abrasive grains on the outer side rotate regularly, and performs regular grinding processing on the top of the metal plate material, and the same-specification metal fibers are produced by grinding. The metal fibers fall above the filter collection part 7 in the bottom cylinder 1. At the same time, the pump suction assembly 8 is started. The circulating pump 81 sucks the stored cutting fluid into the bottom cylinder 1 through the suction pipe 83, and re-enters the bottom cylinder 1 through the outlet pipe 82, and impacts the flowing water on the piled-up metal fiber pile falling above the filter collection part 7, so that the metal fibers are evenly dispersed on the top of the filter collection part 7. As the circulating pump 81 continuously sucks the inside of the bottom cylinder 1, the cutting fluid in the bottom cylinder 1 flows downward in the bottom cylinder 1 in cooperation with the suction force of the lower water inlet. The flowing cutting fluid further makes the metal fibers evenly form on the top of the filter collection part 7, so that a uniform metal fiber felt is formed on the top of the filter collection part 7, completing the wet forming of the synchronous metal fiber felt.

[0023] First of all, by using the sand belt grinding assembly 3 and the lifting assembly 4 to cooperate with each other, the metal plate is driven to move and contact the bottom of the moving sand belt 31. Through the grinding effect of the abrasive grains in the sand belt 31, under the fast-moving cutting, the top of the contacting metal plate is ground, and metal fibers with consistent specification sizes are generated. This changes the conventional drawing method and turning method. The actual grinding forming operation is simple, the forming quality is stable, and the consistency rate of the specification sizes is high, greatly improving the preparation effect of the metal fibers in the metal fiber felt and having good use effects.

[0024] In addition, through the grinding preparation in cooperation with the abrasive belt grinding assembly 3, and the control of the grinding direction is generated by grinding from the outer side of the plate towards the inner side, and by controlling the position of the inlet suction end of the cutting fluid by means of the pump suction assembly 8, as well as the position and direction of the ejection end, and in cooperation with the arrangement of the filter screen collection part 7, on the one hand, by using the suction pressure at the bottom of the filter screen collection part 7 and in cooperation with the flow effect of the cutting fluid, the metal fibers falling into the bottom cylinder 1 are accumulated and attached to the front of the filter screen collection part 7 under the flow of the cutting fluid, completing synchronous wet collection and completing the wet forming of the layered metal fiber felt, realizing rapid preparation. On the other hand, in cooperation with the ejected cutting fluid, when guiding the metal fibers to fall, the water flow impacts along the upper part of the filter screen collection part 7, impacting the metal fibers to be evenly dispersed, and under the suction pressure at the bottom suction port, the metal fibers are evenly dispersed, achieving synchronous and rapid completion of the forming preparation of the metal fiber felt while improving the quality of the final forming, with good use effect.

[0025] Embodiment 2: When the abrasive belt is loose, start the auxiliary adjustment assembly 6, the electric push rod 61 acts, and drives the cross plate 62 to move upward, so that the connecting plate 63 moves upward, and drives the adjusting roller 64 to move upward, so that the adjusting roller 64 located outside the abrasive belt 31 moves upward along the outside of the abrasive belt 31, and starts to extrude the outside of the abrasive belt 31 when moving upward, realizing auxiliary tensioning treatment to ensure that the abrasive belt 31 maintains sufficient tension.

[0026] First, through the movement adjustment in cooperation with the auxiliary adjustment assembly 6, and in cooperation with the resistance and push on the outside of the abrasive belt grinding assembly 3, by changing the position of the outside of the extruded abrasive belt 31, the tension of the abrasive belt 31 is enhanced to avoid looseness. Its actual adjustment is stepless adjustment, with higher controllability during the actual grinding preparation process, and it can be adjusted in time according to the looseness situation, with good use effect.

[0027] Among them, the top of the bottom cylinder 1 is communicated with the top frame 2, and a protective cover 9 is fixedly connected to the top of the bottom cylinder 1, and the protective cover 9 is located directly in front of the top frame 2.

[0028] The protective cover 9 realizes guiding the falling, and in cooperation with the blocking of the baffle frame 5, it ensures that the cutting fluid and the metal fibers effectively fall into the bottom cylinder 1.

[0029] Among them, the abrasive belt grinding assembly 3 further includes a support plate 34 and a first motor 35. The support plate 34 is fixed to the front of the top frame 2, the driving roller 32 and the driven roller 33 are both rotatably installed on the support plate 34, the first motor 35 drives the driving roller 32 to rotate, and a baffle frame 5 is fixedly connected to the front of the top frame 2, and the baffle frame 5 is located outside the driven roller 33.

[0030] Through the action of the abrasive belt grinding assembly 3 on the metal plate moving close to the bottom, the grinding treatment is completed to generate metal fibers.

[0031] Among them, the lifting and assembling component 4 includes a second motor 41, an adaption slot 42, a lead screw 43, a slider 44, a positioning sleeve 45 and a locking bolt 46. The second motor 41 is fixed on the top of the top frame 2. The adaption slot 42 is opened inside the top frame 2. The lead screw 43 is rotatably installed inside the top frame 2. The slider 44 is threadedly sleeved on the outside of the lead screw 43 and is movably sleeved in the adaption slot 42. The positioning sleeve 45 is fixedly connected to the outer side of the slider 44. The locking bolt 46 is threadedly sleeved on the front of the positioning sleeve 45. The top of the lead screw 43 is fixedly connected to the output shaft of the second motor 41.

[0032] The lifting and assembling component 4 realizes the fixation of the metal sheet and the up-and-down movement of the speed. In cooperation with the treatment of the sand belt grinding component 3, the grinding treatment is completed.

[0033] Among them, the pump suction component 8 includes a circulating pump 81, a discharge pipe 82 and a suction pipe 83. The circulating pump 81 is fixed on the bracket outside the bottom cylinder 1. One end of the discharge pipe 82 is fixedly connected to the liquid outlet end of the circulating pump 81, and the other end of the discharge pipe 82 is fixed on the side of the bottom cylinder 1. One end of the suction pipe 83 is communicated with the liquid suction end of the circulating pump 81, and the suction end of the suction pipe 83 is fixedly sleeved in the bottom cylinder 1.

[0034] Through the pump suction component 8, the suction and pumping of the cutting fluid are realized. In cooperation with the storage of the cutting fluid in the bottom cylinder 1, the reflux after the cutting fluid is ejected is realized. While completing the circulation treatment, the water flow of suction and ejection acts on the top of the filter screen collection part 7, so that the loose fibers are formed into a uniform felt after being impacted by the water flow, completing the wet forming and the uniform preparation and forming at the same time.

[0035] Among them, the filter screen collection part 7 includes a movable frame 71, a filter screen plate 73 and filter holes 74. The movable frame 71 is movably sleeved in the bottom cylinder 1. The filter screen plate 73 is movably sleeved in the movable frame 71. The filter holes 74 are opened on the top of the filter screen plate 73. The filter screen collection part 7 further includes a sealing cover plate 72 and a second electric push rod 75. The sealing cover plate 72 is fixedly connected to the end of the movable frame 71. A socket is opened on the front of the bottom cylinder 1. The movable frame 71 is inserted into the bottom cylinder 1 along the socket. The sealing cover plate 72 seals the socket. The second electric push rod 75 is fixed on the inner wall of the movable frame 71 through a side block, and the movable end of the second electric push rod 75 is fixedly connected to the filter screen plate 73.

[0036] The filter screen collection part 7 realizes the collection of the falling and flowing metal fibers, completes the direct forming of the metal fiber felt by uniformly collecting at the top, and is detachable, which is convenient to be removed from the bottom cylinder 1. In cooperation with the second electric push rod 75 to adjust the position of the filter screen plate 73, it provides convenience for the separation of the formed metal fiber felt.

[0037] Among them, the auxiliary adjustment component 6 includes an electric push rod 61, a cross plate 62, a connecting plate 63 and an adjusting roller 64. The electric push rod 61 is fixed to the outside of the top frame 2 through a mounting block. The movable end of the electric push rod 61 is fixedly connected to the cross plate 62. The connecting plate 63 is fixedly connected to the side of the cross plate 62 and is movably sleeved inside the top frame 2. The adjusting roller 64 is located inside the abrasive belt 31 and is rotatably installed between the two connecting plates 63. The electric push rod 61 controls the up and down movement of the adjusting roller 64. A sliding groove 10 is opened on the back of the top frame 2. The connecting plate 63 is movably sleeved in the sliding groove 10. A sealing adapter frame 11 is fixedly sleeved on the outside of the connecting plate 63. The sealing adapter frame 11 is located inside the top frame 2. The sealing adapter frame 11 blocks the side of the sliding groove 10 facing the abrasive belt grinding component 3.

[0038] By utilizing the up and down movement of the adjusting roller 64 in the auxiliary adjustment component 6, when the abrasive belt 31 is slack, the appropriate position is changed by the adjusting roller 64 and the abrasive belt 31 is pushed from the outside, so that the abrasive belt 31 is assisted in tensioning and deforming, ensuring that the abrasive belt 31 maintains sufficient tension for stable grinding work. The sealing adapter frame 11 ensures that the sliding groove 10 is blocked, preventing metal fibers from falling out along the sliding groove 10, and the sliding groove 10 ensures that the auxiliary adjustment component 6 has an up and down adjustable space.

[0039] The working principle and usage process of the present invention: When in use, the metal plate to be processed is sleeved into the positioning sleeve 45 of the lifting assembly component 4, and the locking bolt 46 is rotated to clamp and fix the metal plate in the positioning sleeve 45. The second motor 41 is started and drives the lead screw 43 to rotate, so that the slider 44 slidably sleeved in the fitting groove 42 moves upward, driving the positioning sleeve 45 to move upward. As the top of the metal plate moves vertically upward, the abrasive belt grinding component 3 is started, so that the first motor 35 drives the driving roller 32 to rotate, cooperating with the driven roller 33 to make the abrasive belt wound on the outside move. As the abrasive belt moves, the top of the metal plate moving upward at the bottom abuts against the bottom of the abrasive belt. The fast-moving abrasive belt makes the abrasive grains on the outer side perform a regular rotational movement, and performs regular grinding processing on the top of the metal plate material, and the same specification of metal fibers are ground out. The metal fibers fall above the filter screen collecting part 7 of the bottom cylinder 1. At the same time, the pump suction component 8 is started. The circulating pump 81 sucks the stored cutting fluid into the bottom cylinder 1 through the suction pipe 83 and re-enters the bottom cylinder 1 through the outlet pipe 82, and impacts the falling and piled metal fiber pile with water flow along the top of the filter screen collecting part 7, so that the metal fibers are evenly dispersed on the top of the filter screen collecting part 7. As the circulating pump 81 continuously sucks the inside of the bottom cylinder 1, the cutting fluid in the bottom cylinder 1 flows downward in the bottom cylinder 1 under the suction of the lower water inlet. The flowing cutting fluid further makes the metal fibers evenly form on the top of the filter screen collecting part 7, so that a uniform metal fiber felt is formed on the top of the filter screen collecting part 7, completing the wet forming of the synchronous metal fiber felt; When the abrasive belt is slack, the auxiliary adjustment assembly 6 is activated. The first electric push rod 61 acts and drives the cross plate 62 to move upward, causing the connecting plate 63 to move upward and driving the adjusting roller 64 to move upward. The adjusting roller 64 located outside the abrasive belt 31 moves upward along the outside of the abrasive belt 31, and when moving upward, it starts to press the outside of the abrasive belt 31 to achieve auxiliary tensioning treatment and ensure that the abrasive belt 31 maintains sufficient tension.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A preparation device for producing a metal fiber felt, comprising a bottom cylinder (1) and a top frame (2) fixedly connected to the top of the bottom cylinder (1), characterized in that: A sand belt grinding assembly (3) is fixedly provided on the front surface of the top frame (2). An elevating assembly (4) and an auxiliary adjustment assembly (6) are respectively arranged on the inner and outer sides of the top frame (2). A filter screen collecting part (7) for collecting metal fibers is arranged inside the bottom cylinder (1). A pump suction assembly (8) is arranged on the outer side of the bottom cylinder (1). The pump suction assembly (8) sucks cutting fluid from below the filter screen collecting part (7) in the bottom cylinder (1) and sprays it downward along the upper direction of the filter screen collecting part (7). The sand belt grinding assembly (3) includes a sand belt (31), a driving roller (32) and a driven roller (33). The sand belt (31) is wound around the outer sides of the driving roller (32) and the driven roller (33). The driving roller (32) rotates to drive the sand belt (31) to move. The elevating assembly (4) drives the top of the fixed metal plate to abut against the bottom of the sand belt (31).

2. The preparation device for producing a metal fiber felt according to claim 1, wherein: The top of the bottom cylinder (1) is communicated with the top frame (2). A protective cover (9) is fixedly connected to the top of the bottom cylinder (1). The protective cover (9) is located directly in front of the top frame (2).

3. The preparation device for producing a metal fiber felt according to claim 2, wherein: The sand belt grinding assembly (3) further includes a support plate (34) and a first motor (35). The support plate (34) is fixed on the front surface of the top frame (2). The driving roller (32) and the driven roller (33) are both rotatably installed on the support plate (34). The first motor (35) drives the driving roller (32) to rotate.

4. The preparation device for producing a metal fiber felt according to claim 3, characterized in that: The elevating assembly (4) includes a second motor (41), an adaptation slot (42), a lead screw (43), a slider (44), a positioning sleeve (45) and a locking bolt (46). The second motor (41) is fixed on the top of the top frame (2). The adaptation slot (42) is opened inside the top frame (2). The lead screw (43) is rotatably installed inside the top frame (2). The slider (44) is threadedly sleeved on the outer side of the lead screw (43) and is movably sleeved in the adaptation slot (42). The positioning sleeve (45) is fixedly connected to the outer side surface of the slider (44). The locking bolt (46) is threadedly sleeved on the front surface of the positioning sleeve (45). The top of the lead screw (43) is fixedly connected to the output shaft of the second motor (41).

5. The preparation device for producing a metal fiber felt according to claim 4, characterized in that: A baffle frame (5) is fixedly connected to the front surface of the top frame (2). The baffle frame (5) is located outside the driven roller (33).

6. The preparation device for producing a metal fiber felt according to claim 5, characterized in that: The pump suction assembly (8) includes a circulating pump (81), a discharge pipe (82) and a suction pipe (83). The circulating pump (81) is fixed on a bracket on the outer side of the bottom cylinder (1). One end of the discharge pipe (82) is fixedly connected to the liquid outlet end of the circulating pump (81), and the other end of the discharge pipe (82) is fixed on the side surface of the bottom cylinder (1). One end of the suction pipe (83) is communicated with the liquid suction end of the circulating pump (81), and the suction end of the suction pipe (83) is fixedly sleeved in the bottom cylinder (1).

7. A preparation device for producing a metal fiber felt according to claim 6, characterized in that: The filter screen collection part (7) includes a movable frame (71), a filter screen plate (73) and filter holes (74). The movable frame (71) is movably sleeved in the bottom cylinder (1). The filter screen plate (73) is movably sleeved in the movable frame (71). The filter holes (74) are formed in the top of the filter screen plate (73).

8. A preparation device for producing a metal fiber felt according to claim 7, characterized in that: The filter screen collection part (7) further includes a sealing cover plate (72) and an electric push rod II (75). The sealing cover plate (72) is fixedly connected to the end of the movable frame (71). A socket interface is formed in the front of the bottom cylinder (1). The movable frame (71) is inserted into the bottom cylinder (1) along the socket interface. The sealing cover plate (72) seals the socket interface. The electric push rod II (75) is fixed to the inner wall of the movable frame (71) through a side block, and the movable end of the electric push rod II (75) is fixedly connected to the filter screen plate (73).

9. The preparation device for producing a metal fiber felt according to claim 1, characterized in that: The auxiliary adjustment assembly (6) includes an electric push rod I (61), a cross plate (62), a connecting plate (63) and an adjustment roller (64). The electric push rod I (61) is fixed to the outside of the top frame (2) through a mounting block. The movable end of the electric push rod I (61) is fixedly connected to the cross plate (62). The connecting plate (63) is fixedly connected to the side of the cross plate (62), and the connecting plate (63) is movably sleeved inside the top frame (2). The adjustment roller (64) is located inside the abrasive belt (31) and is rotatably installed between the two connecting plates (63). The electric push rod I (61) controls the up and down movement of the adjustment roller (64).

10. The preparation device for producing a metal fiber felt according to claim 9, characterized in that: A sliding groove (10) is formed in the back of the top frame (2). The connecting plate (63) is movably sleeved in the sliding groove (10). A sealing adapter frame (11) is fixedly sleeved on the outside of the connecting plate (64). The sealing adapter frame (11) is located inside the top frame (2). The sealing adapter frame (11) covers the side of the sliding groove (10) facing the abrasive belt grinding assembly (3).

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