Card clothing replacing device

Abstract

A card clothing replacing device relates to the technical field of card clothing of carding machines and comprises a base, two supports are oppositely and fixedly mounted at one end of the base, and a working roller is rotatably mounted between the two supports through a first rotating shaft; the feeding mechanism is arranged at the other end of the base and used for providing card clothing; the guiding mechanism is obliquely arranged on the side, close to the working roller, of the feeding mechanism and used for guiding the card clothing sent out by the feeding mechanism into the working roller to be wound; the driving mechanism is arranged on one side of the base, and the power output end of the driving mechanism is connected with one end of the first rotating shaft; the limiting mechanism is arranged above the working roller and between the working roller and one side of the working roller so as to limit the card clothing to be tightly arranged on the surface of the working roller in the axial direction of the working roller; the card clothing of the working roller can be quickly replaced, the high card clothing arrangement precision can be ensured, and the card clothing replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carding machine card clothing, in particular to a card clothing replacement device. Background Art

[0002] In the process of glass fiber production, a carding machine is needed to card the glass fiber, and foreign matter will inevitably exist in the glass fiber raw materials. When these foreign matter enter the carding machine with the glass fiber, they will damage the needle clothing on the working roller of the carding machine, causing needle bursting, thereby affecting the normal use of the carding machine. At this time, the needle clothing on the working roller needs to be replaced. However, the existing replacement of the needle clothing requires waiting for the staff of the carding machine manufacturer to carry out maintenance, resulting in a long maintenance cycle, reduced maintenance efficiency, affecting the normal production of glass fiber products, and causing product delivery delays. In addition, the replacement equipment used by the carding machine manufacturer has poor installation accuracy for the needle clothing. During the replacement of the needle clothing, the needle clothing is prone to become scattered, affecting the covering quality of the needle clothing. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides a card clothing replacement device, which solves the problems of poor replacement accuracy and low efficiency of the card clothing replacement equipment in the prior art.

[0004] A card clothing replacement device comprises: a base, one end of which is fixedly mounted with two brackets facing each other, and a working roller is rotatably mounted between the two brackets via a first rotating shaft; a feeding mechanism, which is arranged at the other end of the base and is used to provide the card clothing; a guiding mechanism, which is obliquely arranged on a side of the feeding mechanism close to the working roller and is used to guide the card clothing sent out by the feeding mechanism into the working roller for winding; a driving mechanism, which is arranged on one side of the base, and the power output end of the driving mechanism is connected to one end of the first rotating shaft; and a limiting mechanism, which is arranged above the working roller and between one side thereof to limit the card clothing from being closely arranged on the surface of the working roller along the axial direction.

[0005] Compared with the prior art, the utility model has the following beneficial effects: when in use, the damaged card clothing on the working roller is first removed, and then one end of the working roller is selected as the starting end for replacing the card clothing, and then the card clothing is sent into the guiding mechanism through the feeding mechanism, and the guiding mechanism sends the card clothing to the starting end of the working roller and fixes the card clothing at the starting end, and then the driving mechanism is started to drive the working roller to rotate through the first rotating shaft, so that the card clothing is wound on the working roller, and due to the existence of the limiting mechanism, it can be ensured that the card clothing can be tightly arranged on the surface of the working roller along the axial direction; the operation is simple and convenient, the card clothing of the working roller can be quickly replaced, and the card clothing arrangement accuracy can be ensured, thereby improving the efficiency of replacing the card clothing.

[0006] Preferably, two mounting frames are fixedly installed on the base facing each other, the two mounting frames are located between the working roller and the feeding mechanism, a sliding rod is fixedly installed between the two mounting frames, the guide mechanism includes a first guide member, a second guide member and a third guide member which are arranged in sequence from the feeding mechanism to the direction of the working roller, the third guide member is slidably sleeved on the sliding rod, and the card clothing passes through the first guide member, the second guide member and the third guide member in sequence and then is wound around the working roller.

[0007] Preferably, the first guide member includes a clamping seat fixedly connected to the second guide member, a clamping plate cooperating with the clamping seat, and a first bolt arranged between the clamping seat and the clamping plate. The clamping seat is an L-shaped structure. The horizontal section of the clamping seat is arranged perpendicular to the movement trajectory of the needle cloth and is connected to the second guide member. The clamping plate is arranged facing each other and is slidably arranged on the vertical section of the clamping seat along the length direction of the horizontal section of the clamping seat. The first bolt thread penetrates the vertical section of the clamping seat and is rotatably connected to the clamping plate. A spring is elastically connected between the bolt head of the first bolt and the side wall of the vertical section of the clamping seat, and the spring is sleeved on the first bolt.

[0008] Preferably, the second guide member includes a mounting plate fixedly mounted between the clamping seat and the third guide member, the mounting plate is provided with a sliding hole, a sliding plate is provided in the sliding hole for sliding along a direction perpendicular to the movement trajectory of the needle clothing, a second bolt is provided on one side of the mounting plate, the second bolt freely threadedly penetrates the mounting plate and the sliding plate along the sliding direction of the sliding plate and is rotatably connected to the inner wall of the sliding hole, a plurality of rollers are rotatably mounted on a side of the upper portion of the mounting plate away from the second bolt and on the sliding plate, the plurality of rollers on the mounting plate and the plurality of rollers on the sliding plate are staggered, and the needle clothing can freely and nonlinearly pass through the gap between the mounting plate and the plurality of rollers on the sliding plate.

[0009] Preferably, the third guide member includes a sliding sleeve slidably connected to the sliding rod, a connecting block fixedly installed between the sliding sleeve and the mounting plate, and a first wire groove wheel vertically rotatably installed on the connecting block, and the wire grooves on the first wire groove wheel, the gaps between the mounting plate and several rollers on the sliding plate, and the gaps between the vertical section of the clamping seat and the clamping plate are arranged in a colinear manner.

[0010] Preferably, a support plate is fixedly installed on the upper part of the base away from one end of the working roller, and two tracks are fixedly installed in parallel on the support plate in a direction perpendicular to the movement trajectory of the needle clothing. The feeding mechanism includes a tripod, and a plurality of wheels are fixedly installed facing each other at the bottom of the tripod. Each pair of wheels arranged facing each other correspond to the two tracks one by one, and two rotating grooves are fixedly installed facing each other on the upper part of the tripod, and a needle clothing wheel is rotatably installed between the two rotating grooves through a second rotating shaft.

[0011] Preferably, the limiting mechanism comprises a first limiting member connected to the sliding sleeve and a second limiting member connected to one of the brackets, the first limiting member is used to abut against the card clothing wound on the working roller, and the second limiting member is connected to the first limiting member.

[0012] Preferably, the first limiting member includes a connecting rod having one end fixedly connected to the sliding sleeve and a clamping plate and a first counterweight arranged at the other end of the connecting rod. The clamping plate is an L-shaped structure, the free end of the vertical section of the clamping plate is fixedly connected to the bottom of the connecting rod, the horizontal section of the clamping plate is abutted against the needle clothing wrapped on the working roller, and the first counterweight is fixedly connected to the upper part of the connecting rod.

[0013] Preferably, the second limiting member includes a support rod with one end vertically fixedly connected to one of the brackets and a second counterweight fixedly connected to the end of the connecting rod away from the sliding sleeve through a connecting rope, a fixing sleeve is provided on the other end of the support rod, a mounting rod is vertically fixedly installed on the upper part of the fixing sleeve, a second wire groove wheel is rotatably installed on the end of the mounting rod away from the support rod, and the connecting rope can freely pass through the wire groove of the second wire groove wheel to allow the second counterweight to be freely set vertically.

[0014] Preferably, the driving mechanism includes a motor fixedly mounted on one side of the base and a pulley assembly arranged between the first rotating shaft and the power output shaft of the motor, the pulley assembly includes two pulleys and a belt arranged between the two pulleys, the first rotating shaft freely passes through the bracket and is coaxially fixedly connected to one of the pulleys, and the other pulley is coaxially fixedly connected to the power output shaft of the motor.

[0015] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of an embodiment of the utility model.

[0017] Figure 2 for Figure 1 Top view of the .

[0018] Figure 3 for Figure 1 A front view of the first guide member.

[0019] Figure 4 for Figure 1 A top view of the second guide member.

[0020] The numbers in the figure are: 1, base; 11, bracket; 12, support plate; 13, track; 14, mounting frame; 15, sliding rod; 16, motor; 17, pulley; 18, belt; 2, working roller; 21, first rotating shaft; 3, tripod; 31, wheel; 32, rotating groove; 4, needle cloth wheel; 41, second rotating shaft; 5, clamping seat; 51, clamping plate; 52, first bolt; 53, spring; 6, mounting plate; 61, sliding hole; 62, sliding plate; 63, roller; 64, second bolt; 7, sliding sleeve; 71, connecting block; 72, first wire groove wheel; 73, connecting rod; 74, pressing plate; 75, first counterweight; 8, support rod; 81, fixing sleeve; 82, mounting rod; 83, second wire groove wheel; 84, connecting rope; 85, second counterweight. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0022] like Figure 1-2 As shown, an embodiment of the utility model provides a card clothing replacement device, comprising: a base 1, one end of which is fixedly mounted with two brackets 11 facing each other, and a working roller 2 is rotatably mounted between the two brackets 11 through a first rotating shaft 21; a feeding mechanism, which is arranged at the other end of the base 1 to provide the card clothing; a guiding mechanism, which is obliquely arranged on a side of the feeding mechanism close to the working roller 2 to guide the card clothing sent by the feeding mechanism into the working roller 2 for winding; a driving mechanism, which is arranged on one side of the base 1, and the power output end of the driving mechanism is connected to one end of the first rotating shaft 21; and a limiting mechanism, which is arranged above the working roller 2 and between one side thereof to limit the card clothing to be closely arranged on the surface of the working roller 2 along the axial direction.

[0023] First, the damaged card clothing on the working roller 2 is removed, and then one end of the working roller 2 is selected as the starting end for replacing the card clothing, and then the card clothing is sent into the guiding mechanism through the feeding mechanism, and the guiding mechanism sends the card clothing to the starting end of the working roller 2 and fixes the card clothing at the starting end, and then the driving mechanism is started to drive the working roller 2 to rotate through the first rotating shaft 21, so that the card clothing is wound on the working roller 2, and due to the existence of the limiting mechanism, it can be ensured that the card clothing can be tightly arranged on the surface of the working roller 2 along the axial direction; the operation is simple and convenient, the card clothing of the working roller 2 can be quickly replaced, and the card clothing arrangement accuracy can be ensured, thereby improving the efficiency of replacing the card clothing.

[0024] like Figure 1-4As shown, according to another embodiment of the utility model, the guide mechanism included in the card clothing replacement device is further optimized, and two mounting frames 14 are fixedly installed on the base 1 facing each other, and the two mounting frames 14 are located between the working roller 2 and the feeding mechanism. A sliding rod 15 is fixedly installed between the two mounting frames 14, and the guiding mechanism includes a first guide member, a second guide member and a third guide member which are arranged in sequence from the feeding mechanism to the direction of the working roller 2, and the third guide member is slidably sleeved on the sliding rod 15, and the card clothing is wound around the working roller 2 after passing through the first guide member, the second guide member and the third guide member in sequence.

[0025] The first guide member includes a clamping seat 5 fixedly connected to the second guide member, a clamping plate 51 cooperating with the clamping seat 5, and a first bolt 52 arranged between the clamping seat 5 and the clamping plate 51. The clamping seat 5 is an L-shaped structure. The horizontal section of the clamping seat 5 is arranged perpendicular to the movement trajectory of the needle clothing and is connected to the second guide member. The clamping plate 51 is arranged opposite to the vertical section of the clamping seat 5 and is slidably arranged thereon along the length direction of the horizontal section of the clamping seat 5. The first bolt 52 is threaded through the vertical section of the clamping seat 5 and is rotatably connected to the clamping plate 51. A spring 53 is elastically connected between the bolt head of the first bolt 52 and the side wall of the vertical section of the clamping seat 5. The spring 53 is sleeved on the first bolt 52. The distance between the clamping plate 51 and the vertical section of the clamping seat 5 is adjusted by screwing the first bolt 52 so that the needle clothing can pass freely. At the same time, the spring 53 can ensure that the first bolt 52 will not rotate freely, thereby ensuring that the distance between the clamping plate 51 and the vertical section of the clamping seat 5 will not change.

[0026] The second guide member includes a mounting plate 6 fixedly mounted between the clamping seat 5 and the third guide member, a sliding hole 61 is opened on the mounting plate 6, a sliding plate 62 is slidably mounted in the sliding hole 61 in a direction perpendicular to the movement trajectory of the needle cloth, a second bolt 64 is arranged on one side of the mounting plate 6, the second bolt 64 freely passes through the mounting plate 6 and the sliding plate 62 along the sliding direction of the sliding plate 62, and is rotatably connected to the inner wall of the sliding hole 61, a side of the upper part of the mounting plate 6 away from the second bolt 64 and the sliding plate 62 are rotatably mounted with a plurality of rollers 63, and the plurality of rollers 63 on the mounting plate 6 are rotatably mounted with the sliding plate 62, and the plurality of rollers 63 on the mounting plate 6 are rotatably mounted with the sliding plate 62. The rollers 63 on the mounting plate 6 are staggered, and the card clothing freely passes through the gap between the mounting plate 6 and the rollers 63 on the sliding plate 62 in a nonlinear manner; the card clothing passes between the mounting plate 6 and the rollers 63 on the sliding plate 62 and drives each roller 63 to rotate, and the card clothing passes through the gap between the mounting plate 6 and the rollers 63 on the sliding plate 62 in a nonlinear manner, that is, the rollers 63 on the mounting plate 6 cooperate with the rollers 63 on the sliding plate 62 to enable the card clothing to be bent at a small angle, so as to soften and stretch the card clothing in advance, so as to facilitate smoother winding on the working roller 2 later without breaking.

[0027] The third guide member includes a sleeve 7 slidably connected to the sliding rod 15, a connecting block 71 fixedly installed between the sleeve 7 and the mounting plate 6, and a first wire groove wheel 72 vertically rotatably installed on the connecting block 71. The wire grooves on the first wire groove wheel 72, the gaps between the mounting plate 6 and the plurality of rollers 63 on the sliding plate 62, and the gaps between the vertical section of the clamping seat 5 and the clamping plate 51 are arranged in a colinear manner; the card clothing passes through the gap between the vertical section of the clamping seat 5 and the clamping plate 51, the gaps between the mounting plate 6 and the plurality of rollers 63 on the sliding plate 62, and the wire grooves on the first wire groove wheel 72 and is then wound around the working roller 2; and preferably, the horizontal section of the clamping seat 5, the mounting plate 6 and the connecting block 71 are arranged linearly and the angle between the three and the horizontal direction is 30°, so that the card clothing passes more smoothly and the feeding mechanism also has an optimal feeding angle.

[0028] like Figure 1-2 As shown, according to another embodiment of the utility model, the card clothing replacement device further optimizes the feeding mechanism included therein, a support plate 12 is fixedly installed on the upper part of the base 1 away from one end of the working roller 2, and two tracks 13 are fixedly installed in parallel along the direction perpendicular to the movement trajectory of the card clothing on the support plate 12, and the feeding mechanism includes a tripod 3, and a plurality of wheels 31 are fixedly installed facing each other at the bottom of the tripod 3, and each two wheels 31 arranged facing each other correspond to the two tracks 13, and two rotating grooves 32 are fixedly installed facing each other on the upper part of the tripod 3, and a card clothing wheel 4 is rotatably installed between the two rotating grooves 32 through a second rotating shaft 41; the card clothing wheel 4 rotates to provide card clothing uninterruptedly, and as the card clothing is continuously wound along the axial direction of the working roller 2, the tripod 3 is pushed so that the wheels 31 at its bottom move along the corresponding tracks 13 to ensure that the card clothing can be provided stably and smoothly.

[0029] like Figure 1-2 As shown, according to another embodiment of the utility model, the card clothing replacement device further optimizes the limiting mechanism included therein, and the limiting mechanism includes a first limiting member connected to the sleeve 7 and a second limiting member connected to one of the brackets 11, the first limiting member is used to offset the card clothing wrapped on the working roller 2, and the second limiting member is connected to the first limiting member.

[0030] The first limiting member includes a connecting rod 73 fixedly connected to the sliding sleeve 7 at one end, and a clamping plate 74 and a first counterweight 75 arranged at the other end of the connecting rod 73. The clamping plate 74 is an L-shaped structure. The free end of the vertical section of the clamping plate 74 is fixedly connected to the bottom of the connecting rod 73, and the horizontal section of the clamping plate 74 is against the needle clothing wrapped on the working roller 2. The first counterweight 75 is fixedly connected to the upper part of the connecting rod 73; the first counterweight 75 can ensure that the horizontal section of the clamping plate 74 is always against the needle clothing wrapped on the working roller 2, ensuring that the needle clothing does not separate from the surface of the working roller 2.

[0031] The second limiting member includes a support rod 8, one end of which is vertically fixedly connected to one of the brackets 11, and a second counterweight 85 fixedly connected to the end of the connecting rod 73 away from the sliding sleeve 7 through a connecting rope 84. A fixing sleeve 81 is provided on the other end of the support rod 8, and a mounting rod 82 is vertically fixedly installed on the upper part of the fixing sleeve 81. A second wire groove wheel 83 is rotatably installed on the end of the mounting rod 82 away from the support rod 8. The connecting rope 84 can freely pass through the wire groove of the second wire groove wheel 83 to allow the second counterweight 85 to be freely vertically set; the second counterweight 85 tightens the connecting rod 73 so that the connecting rod 73 does not deviate during the sliding process of the sliding sleeve 7. Through the cooperation of the first counterweight 75 and the second counterweight 85, the needle clothing has good tension during the winding process, which can ensure that the needle clothing is tightly arranged on the surface of the working roller 2 along the axial direction.

[0032] like Figure 2 As shown, according to another embodiment of the utility model, the needle clothing replacement device further optimizes the driving mechanism included therein, and the driving mechanism includes a motor 16 fixedly mounted on one side of the base 1 and a pulley assembly arranged between the first rotating shaft 21 and the power output shaft of the motor 16, the pulley assembly includes two pulleys 17 and a belt 18 arranged between the two pulleys 17, the first rotating shaft 21 freely passes through the bracket 11 and is coaxially fixedly connected to one of the pulleys 17, and the other pulley 17 is coaxially fixedly connected to the power output shaft of the motor 16; the motor 16 drives the first rotating shaft 21 and the working roller 2 to rotate through the transmission of the two pulleys 17 and the belt 18.

[0033] The use principle of the utility model is as follows: when the utility model is used, the original card clothing on the working roller 2 is first removed, and then one end of the working roller 2 is selected as the starting end for replacing the card clothing, and then the card clothing wheel 4 is rotated to pass the card clothing through the gap between the vertical section of the clamping seat 5 and the clamping plate 51, the gap between the mounting plate 6 and the plurality of rollers 63 on the sliding plate 62, and the wire groove on the first wire groove wheel 72, and then the card clothing is wound and fixed on the starting end of the working roller 2, and then the motor 16 is started to drive the first rotating shaft 21 and the working roller 2 to rotate through the transmission of the two pulleys 17 and the belt 18, so that the card clothing begins to be wound around the working roller. 2, and at the same time, the first counterweight 75 can ensure that the horizontal section of the pressing plate 74 is always against the card clothing wound on the working roller 2, and through the cooperation of the first counterweight 75 and the second counterweight 85, the card clothing has good tension during the winding process, which can ensure that the card clothing is tightly arranged on the surface of the working roller 2 along the axial direction. As the card clothing continues to be wound along the axial direction of the working roller 2, the sliding sleeve 7 slides along the sliding rod 15 and pushes the tripod 3 to make the wheels 31 at the bottom move along the corresponding track 13, so as to ensure the stable and smooth supply of the card clothing until the replacement of the card clothing of the working roller 2 is completed.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A card clothing replacement device, characterized in that: include: A base (1) has two brackets (11) fixedly mounted on one end thereof facing each other, and a working roller (2) is rotatably mounted between the two brackets (11) via a first rotating shaft (21); A feeding mechanism, which is arranged at the other end of the base (1) and is used to provide card clothing; A guiding mechanism, which is arranged obliquely on a side of the feeding mechanism close to the working roller (2) and is used to guide the card clothing fed by the feeding mechanism into the working roller (2) for winding; A driving mechanism, which is arranged on one side of the base (1), wherein a power output end of the driving mechanism is connected to one end of the first rotating shaft (21); and A limiting mechanism is arranged between the top of the working roller (2) and one side thereof to limit the card clothing to be closely arranged on the surface of the working roller (2) along the axial direction.

2. A card clothing replacement device according to claim 1, characterized in that: Two mounting frames (14) are fixedly mounted on the base (1) facing each other, the two mounting frames (14) are located between the working roller (2) and the feeding mechanism, a sliding rod (15) is fixedly mounted between the two mounting frames (14), the guiding mechanism comprises a first guiding member, a second guiding member and a third guiding member which are sequentially arranged in a direction from the feeding mechanism to the working roller (2), the third guiding member is slidably sleeved on the sliding rod (15), and the card clothing is sequentially passed through the first guiding member, the second guiding member and the third guiding member before being wound on the working roller (2).

3. A card clothing replacement device according to claim 2, characterized in that: The first guide member comprises a clamping seat (5) fixedly connected to the second guide member, a clamping plate (51) matched with the clamping seat (5), and a first bolt (52) arranged between the clamping seat (5) and the clamping plate (51); the clamping seat (5) is an L-shaped structure; the horizontal section of the clamping seat (5) is arranged perpendicular to the movement trajectory of the needle cloth and is connected to the second guide member; the clamping plate (51) and the vertical section of the clamping seat (5) are arranged opposite to each other and are slidably arranged on the horizontal section of the clamping seat (5) along the length direction; the first bolt (52) is threadedly penetrated through the vertical section of the clamping seat (5) and is rotatably connected to the clamping plate (51); a spring (53) is elastically connected between the bolt head of the first bolt (52) and the side wall of the vertical section of the clamping seat (5); the spring (53) is sleeved on the first bolt (52).

4. A card clothing replacement device according to claim 3, characterized in that: The second guide member comprises a mounting plate (6) fixedly mounted between the clamping seat (5) and the third guide member, a sliding hole (61) is provided on the mounting plate (6), a sliding plate (62) is slidably mounted in the sliding hole (61) in a direction perpendicular to the movement trajectory of the card clothing, a second bolt (64) is provided on one side of the mounting plate (6), the second bolt (64) freely passes through the mounting plate (6) and the sliding plate (62) in a threaded manner along the sliding direction of the sliding plate (62) and is rotatably connected with the inner wall of the sliding hole (61), a plurality of rollers (63) are rotatably mounted on a side of the upper part of the mounting plate (6) away from the second bolt (64) and on the sliding plate (62), the mounting plate (6) and the plurality of rollers (63) on the sliding plate (62) are staggeredly arranged, and the card clothing freely and nonlinearly passes through the gap between the mounting plate (6) and the plurality of rollers (63) on the sliding plate (62).

5. A card clothing replacement device according to claim 4, characterized in that: The third guide member comprises a sliding sleeve (7) slidably connected to the sliding rod (15), a connecting block (71) fixedly mounted between the sliding sleeve (7) and the mounting plate (6), and a first line groove wheel (72) vertically rotatably mounted on the connecting block (71), wherein the line grooves on the first line groove wheel (72), the gaps between the mounting plate (6) and a plurality of rollers (63) on the sliding plate (62), and the gaps between the vertical section of the clamping seat (5) and the clamping plate (51) are arranged in a colinear manner.

6. A card clothing replacement device according to claim 3, characterized in that: A support plate (12) is fixedly mounted on the upper part of one end of the base (1) away from the working roller (2); two tracks (13) are fixedly mounted on the support plate (12) in parallel in a direction perpendicular to the movement track of the card clothing; the feeding mechanism comprises a tripod (3); a plurality of wheels (31) are fixedly mounted opposite to each other at the bottom of the tripod (3); each pair of wheels (31) arranged opposite to each other are matched with the two tracks (13) in a one-to-one correspondence; two rotating grooves (32) are fixedly mounted opposite to each other at the upper part of the tripod (3); a card clothing wheel (4) is rotatably mounted between the two rotating grooves (32) via a second rotating shaft (41).

7. A card clothing replacement device according to claim 5, characterized in that: The limiting mechanism comprises a first limiting member connected to the sliding sleeve (7) and a second limiting member connected to one of the brackets (11), the first limiting member being used to abut against the card clothing wound on the working roller (2), and the second limiting member being connected to the first limiting member.

8. A card clothing replacement device according to claim 7, characterized in that: The first limiting member comprises a connecting rod (73) having one end fixedly connected to the sliding sleeve (7), and a clamping plate (74) and a first counterweight (75) arranged at the other end of the connecting rod (73); the clamping plate (74) is an L-shaped structure; the free end of the vertical section of the clamping plate (74) is fixedly connected to the bottom of the connecting rod (73); the horizontal section of the clamping plate (74) abuts against the needle clothing wound on the working roller (2); and the first counterweight (75) is fixedly connected to the upper part of the connecting rod (73).

9. A card clothing replacement device according to claim 7, characterized in that: The second limiting member comprises a support rod (8) having one end vertically fixedly connected to one of the brackets (11) and a second counterweight (85) fixedly connected to one end of the connecting rod (73) away from the sliding sleeve (7) through a connecting rope (84); a fixing sleeve (81) is provided on the other end of the support rod (8); a mounting rod (82) is vertically fixedly installed on the upper part of the fixing sleeve (81); a second line groove wheel (83) is rotatably installed on one end of the mounting rod (82) away from the support rod (8); the connecting rope (84) freely passes through the line groove of the second line groove wheel (83) so that the second counterweight (85) is freely vertically installed.

10. The card clothing replacement device according to claim 1, characterized in that: The driving mechanism comprises a motor (16) fixedly mounted on one side of the base (1) and a pulley assembly arranged between a first rotating shaft (21) and a power output shaft of the motor (16), the pulley assembly comprising two pulleys (17) and a belt (18) arranged between the two pulleys (17), the first rotating shaft (21) freely passes through the bracket (11) and is coaxially fixedly connected to one of the pulleys (17), and the other pulley (17) is coaxially fixedly connected to the power output shaft of the motor (16).

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