Down sleeve type cleaning device of drawing frame

Abstract

The invention discloses a drawing frame velvet sleeve type cleaning device which comprises conveying rollers and a cleaning velvet sleeve, an air storage box is arranged on the inner side of the cleaning velvet sleeve and located between the two sets of conveying rollers, an air injection groove is formed in the top of the air storage box, a piston plate is arranged in the air storage box, and a linkage plate is arranged on the air storage box in a sliding mode. First driving mechanisms for driving the linkage plate to slide in the sliver feeding direction are symmetrically arranged on the two sides of the air storage box, second driving mechanisms for driving the linkage plate to move in the direction opposite to the sliver feeding direction are further arranged on the two sides of the air storage box, and a first connecting rod connected with the piston plate is arranged at one end of the linkage plate; according to the device, in the process that the transmission roller rotates to drive the velvet sleeve to transmit, the air storage box continuously carries out circulating air storage and air injection, air blowing can be carried out on the velvet sleeve from inside to outside once at set intervals, flying dust on the velvet sleeve is effectively removed, the dust removal efficiency is improved, and the service life of the velvet sleeve is prolonged. The damage of the scraper blade to the velvet sleeve is avoided, and the service life of the velvet sleeve is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to a velvet sleeve type cleaning device for a drawing frame. Background Art

[0002] There are many types of cotton spinning drawing frames, such as single-eye, double-eye, and four-eye. The single-eye drawing frame feeds multiple slivers and makes one sliver after combining and drawing; the double-eye drawing frame outputs two slivers, and so on. The function of the drawing frame is to improve the internal structure of the sliver, thereby improving the uniformity of its long segments, while reducing the weight unevenness, making the fibers in the sliver straight and parallel, reducing hooks, making the fineness meet the requirements, and making the raw materials of different types or qualities mix evenly to achieve the specified mixing ratio.

[0003] The existing publication number is CN215163403U, which is a drawing frame cleaning device, including a rotating roller, a cleaning velvet sleeve, and a suction pipe. The cleaning velvet sleeve is wound between two rotating rollers, and a suction port is provided on the suction pipe. It also includes a supporting roller. The two supporting rollers and the two rotating rollers form a quadrilateral. The cleaning velvet sleeve is wound around the supporting roller and then wound on the rotating roller. The suction pipe is connected with a suction branch pipe, and an elastic scraper is provided on the suction branch pipe. The elastic scraper contacts the part of the cleaning velvet sleeve where the supporting roller is located. The suction branch pipe is provided with a secondary suction port, and the secondary suction port is located below the elastic scraper. It can effectively remove the flying flowers and dust attached to the cleaning velvet sleeve, avoid contamination of the sliver after being contaminated by the roller, and ensure the quality of the sliver.

[0004] The above-mentioned existing scheme has the following problems: although the velvet sleeve can be continuously cleaned of flying flowers and dust by elastic scrapers and scraping teeth during continuous transmission of the velvet sleeve, when the velvet sleeve mainly absorbs the flying flowers and dust on the roller through the surface fluff material, the continuous contact of the elastic scraper and the scraping teeth on the fluff can easily cause the fluff to fall over, fall off, and become sparse, resulting in the loss of the cleaning effect on flying flowers and dust. Summary of the invention

[0005] The object of the present invention is to provide a draw frame velvet sleeve cleaning device to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a velvet sleeve type cleaning device for a drawing frame, comprising two groups of conveying rollers and a cleaning velvet sleeve sleeved on the conveying rollers, an air storage box is arranged on the inner side of the cleaning velvet sleeve between the two groups of conveying rollers, an air jet slot is arranged on the top of the air storage box, a piston plate is arranged in the air storage box, a linkage plate is slidably arranged on the air storage box, and both ends of the linkage plate in the length direction extend to the outside of the air storage box, a first driving mechanism for driving the linkage plate to slide along the strip feeding direction is symmetrically arranged on both sides of the air storage box, and a second driving mechanism for driving the linkage plate to move in the opposite direction of the strip feeding is also arranged on both sides of the air storage box, the first driving mechanism comprises a first rotating rod, a worm gear and a worm, The worm is coaxially arranged at the two ends of the axial direction of the conveying roller, and fixed blocks are symmetrically arranged on both sides of the air storage box. The first rotating rod is rotatably arranged on the fixed block, and the worm wheels are respectively fixedly arranged at the two ends of the axial direction of the first rotating rod and are respectively meshed with the worms arranged in the axial direction of the conveying roller. The first rotating rod passes through the linkage plate and forms a threaded connection with the linkage plate. One end of the linkage plate is provided with a first connecting rod connected to the piston plate. A first piston chamber is formed in the air storage box on the side of the piston plate away from the first connecting rod. The first driving mechanism drives the piston plate to move through the first connecting rod to make the first piston chamber inhale air, and the second driving mechanism drives the piston plate to move through the first connecting rod to spray the gas in the first piston chamber from the jet groove to the velvet sleeve.

[0007] Preferably, the air storage box is provided with an anti-suction plate at the air jet groove, a plate groove is provided in the air jet groove for the anti-suction plate to slide, a pressure piece is provided at one end of the plate groove for driving the anti-suction plate to be in a position to block the air jet groove, a slope is provided on the bottom end surface of the anti-suction plate at the air jet groove, and a one-way valve is provided on the side wall of the first piston chamber of the air storage box.

[0008] Preferably, the second driving mechanism includes a second rotating rod, the second rotating rod is rotatably set on the fixed block and has first gears at both ends of the axial direction, the first rotating rod has second gears meshingly connected to the first gear at both ends of the axial direction, a spiral groove is provided on the second rotating rod, the second connecting rod passes through a linkage plate, a guide block is provided on the linkage plate which forms a sliding fit with the spiral groove, the second rotating rod rotates and drives the linkage plate to move in the opposite direction of the strip feeding through the cooperation between the guide block and the spiral groove.

[0009] Preferably, both ends of the linkage plate located outside the gas storage box are provided with a reversing mechanism, the reversing mechanism includes an outer plate, an inner plate and a middle plate, the outer plate, the inner plate and the middle plate are all slidably arranged at the bottom of the linkage plate, the reversing mechanism also includes a multi-directional screw, the multi-directional screw is rotatably arranged in the linkage plate, the multi-directional screw penetrates the outer plate, the inner plate and the middle plate and is respectively threadedly connected with the outer plate, the inner plate and the middle plate, the multi-directional screw is rotated forward to drive the middle plate and the inner plate to move toward a side close to each other, and drives the middle plate and the outer plate to move toward a side away from each other, and the multi-directional screw is reversed to drive the middle plate and the inner plate to move The side that moves away from each other drives the middle plate and the outer plate to move toward the side that approaches each other, the side of the outer plate close to the middle plate is provided with an outer rod opening matched with the second rotating rod, the side of the inner plate close to the middle plate is provided with an inner rod opening matched with the first rotating rod, the side of the middle plate close to the outer plate is provided with a first rod opening matched with the second rotating rod, the guide block is arranged in the first rod opening, the side of the middle plate close to the inner plate is provided with a second rod opening, the inner walls of the second rod opening and the inner rod opening are both provided with internal threads connected with the first rotating rod thread, and the air storage box is provided with a reversing component that drives the multi-directional screw to switch the rotation direction.

[0010] Preferably, the reversing assembly includes a first power bevel gear, a first linkage bevel gear, a second power bevel gear, a second linkage bevel gear, and also includes a reversing gear. The first linkage bevel gear and the second linkage bevel gear are respectively rotatably arranged on the outer wall of the air storage box and are respectively located on the front and rear sides of the linkage plate. The first power bevel gear and the second power bevel gear are both fixed on the first rotating rod and are respectively located on the front and rear sides of the linkage plate. The first power bevel gear is meshed with the first linkage bevel gear, and the second power bevel gear is meshed with the second linkage bevel gear. The reversing gear is fixed to one end of the axial direction of the multi-directional screw. After the reversing gear follows the linkage plate to move back and forth, it can be meshed with the first linkage bevel gear and the second linkage bevel gear respectively.

[0011] Preferably, a slide groove is provided at the bottom of the linkage plate, and a slide plate is provided on the top of the outer plate, the inner plate and the middle plate to form a sliding connection with the slide groove.

[0012] Preferably, a plurality of groups of limit slots are provided on the top of the slide groove, a side extension plate is provided on the side wall of the air storage box, a plurality of groups of limit plates are provided at positions corresponding to the limit slots at the bottom of the side extension plate, and the slide plates on the top of the outer plate, the inner plate and the middle plate are all provided with plate slots into which the limit plates are inserted, and the multi-directional screw is rotated once to drive the outer plate, the inner plate and the middle plate to slide so that the plate slots slide to a relative position with another group of limit plates.

[0013] Preferably, an annular groove is provided in the middle of the conveying roller on the side of the linkage plate away from the first connecting rod, a bearing is sleeved on the annular groove, a fixing rod is fixed on the outer wall of the outer ring of the bearing, a base block is provided on the inner wall of the air storage box cavity on the side of the linkage plate away from the first connecting rod, a second piston cavity for sliding of the fixing rod is penetrated through the base block, a limiting groove is provided on the inner wall of the second piston cavity, a back plate is provided on the outer wall of the fixing rod to form a sliding connection with the limiting groove, a spring is provided in the limiting groove to resist the back plate, a driving member is provided on the linkage plate to drive the fixing rod to slide toward the side away from the piston plate, and the cleaning velvet is sleeved with a composite breathable material.

[0014] Preferably, the driving member includes a second connecting rod and a piston block, and the linkage plate slides and drives the piston block to move in the second piston chamber and expand the fixing rod, so that the conveying roller moves in a direction away from the other group of conveying rollers.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The invention drives the velvet cover to be driven by the rotation of the conveying roller, so that the air storage box can continuously perform cyclic air storage and high-pressure air jet, and the velvet cover can be blown from the inside to the outside every once in a while, so as to replace the scraper that contacts the velvet cover for a long time, effectively remove the flying dust on the velvet cover, and avoid the damage of the scraper to the velvet cover, thereby increasing the service life of the velvet cover; By setting the first rotating rod and the second rotating rod, and setting the inner plate, the middle plate and the inner plate, the inner plate, the middle plate and the inner plate are all slidably set at the bottom of the linkage plate, and the sliding of the inner plate, the middle plate and the inner plate can make the outer plate, the middle plate and the second rotating rod cooperate to realize the rapid movement of the piston plate, so that the high-pressure gas is ejected from the first piston cavity through the jet groove, and the velvet cover can be cleaned more thoroughly, and the middle plate, the inner plate and the first rotating rod can cooperate to realize the slow movement of the piston plate, so that the first piston cavity can be stably inhaled; Through the cooperation of the piston block and the second piston chamber, after the piston block moves a stroke through the linkage plate, the pressure in the second piston chamber will drive the fixed rod to move to a certain extent, and drive one side of the transmission roller to move through the bearing, so that the cleaning sleeve will be deformed to a certain extent, increasing the gap of the cleaning sleeve; when the transmission roller moves and drives the cleaning sleeve to reach the maximum deformation, the linkage plate moves in the opposite direction and drives the piston plate to compress the first piston chamber, so that the jet groove sprays high-pressure gas to blow the cleaning sleeve to remove flying flowers and dust on the cleaning sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a structural schematic diagram highlighting the linkage plate and the first connecting rod of the present invention; Figure 3 is a cross-sectional schematic diagram highlighting the interior of the gas storage box of the present invention; Figure 4 It is an exploded schematic diagram of the present invention highlighting the outer plate, the middle plate, the inner plate and the linkage plate; Figure 5 It is a structural schematic diagram of the present invention highlighting the position of the multi-directional screw; Figure 6 is a cross-sectional schematic diagram highlighting the anti-absorption plate of the present invention; Figure 7 yes Figure 6 Enlarged schematic diagram of part A.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Conveying roller; 2. Cleaning fleece sleeve; 3. Gas storage box; 4. Jet slot; 5. Piston plate; 6. Linkage plate; 7. First driving mechanism; 71. First rotating rod; 72. Worm gear; 73. Worm; 8. Fixed block; 9. First connecting rod; 10. First piston chamber; 11. Second driving mechanism; 111. Second rotating rod; 112. First gear; 113. Second gear; 12. Anti-suction plate; 13. Plate slot; 14. One-way valve; 15. Spiral slot; 16. Guide block; 17. Reversing mechanism; 171. Outer plate; 172. Middle plate; 173. Inner plate; 174. Multidirectional screw; 18. Outer rod opening; 19. Inner rod opening; 20 , first rod opening; 21, second rod opening; 22, reversing assembly; 221, first power bevel gear; 222, first linkage bevel gear; 223, second power bevel gear; 224, second linkage bevel gear; 225, reversing gear; 23, slide groove; 24, slide plate; 25, limit slot; 26, side extension plate; 27, limit plate; 28, annular groove; 29, bearing; 30, fixing rod; 31, base block; 32, second piston chamber; 33, limit slot; 34, spring; 35, abutment plate; 36, driving member; 361, second connecting rod; 362, piston block; 37, limit plate groove; 38, inclined surface; 39, pressure member; 40, motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-7 , the present invention provides a technical solution: See also Figure 1-3 A velvet sleeve cleaning device for a drawing frame includes two groups of conveying rollers 1 and a cleaning velvet sleeve 2 sleeved on the conveying rollers 1, an air storage box 3 is arranged inside the cleaning velvet sleeve 2 between the two groups of conveying rollers 1, an air jet slot 4 is arranged on the top of the air storage box 3, a piston plate 5 is arranged inside the air storage box 3, a linkage plate 6 is slidably arranged on the air storage box 3, and both ends of the linkage plate 6 in the length direction extend to the outside of the air storage box 3, and a first driving mechanism 7 for driving the linkage plate 6 to slide along the sliver feeding direction is symmetrically arranged on both sides of the air storage box 3, wherein the first driving mechanism 7 includes The first rotating rod 71, the worm wheel 72 and the worm 73, the worm 73 is coaxially arranged at the two ends of the axial direction of the conveying roller 1, the two sides of the air storage box 3 are symmetrically provided with fixed blocks 8, the outer side of the fixed block 8 is used for welding and fixing with the frame of the line-joining machine, the first rotating rod 71 is rotatably arranged on the fixed block 8, the worm wheel 72 is respectively fixedly arranged at the two ends of the axial direction of the first rotating rod 71 and is respectively meshed with the worm 73 arranged in the axial direction of the conveying roller 1, the first rotating rod 71 passes through the linkage plate 6 and is threadedly connected with the linkage plate 6, and one end of the linkage plate 6 is provided with a piston plate 5, a first piston chamber 10 is formed in the gas storage box 3 on the side of the piston plate 5 away from the first connecting rod 9, and the first driving mechanism 7 drives the piston plate 5 to move through the first connecting rod 9 to make the first piston chamber 10 suck air; the two sides of the gas storage box 3 are also provided with a second driving mechanism 11 that drives the linkage plate 6 to move in the opposite direction of the strip feeding, and the second driving mechanism 11 drives the piston plate 5 to move through the first connecting rod 9 to make the gas in the first piston chamber 10 spray from the jet slot 4 to the velvet sleeve. It should be noted that: at the relative position of the outer side of the cleaning velvet sleeve 2 and the paint spraying slot, another A suction pipe is arranged outside, and the suction pipe can absorb the flying flowers and dust that are easily fallen off the surface of the velvet cover through the induced draft fan. After the velvet cover has been used for a period of time, there will be flying flowers and dust on the surface that are difficult to be sucked away by the suction pipe. The flying flowers and dust that are difficult to fall off on the velvet cover can be blown out by the high-pressure gas ejected from the jet slot 4, and then sucked away by the suction pipe. The suction pipe is a conventional existing technology, so it is not described in detail. It should be noted that: the transmission roller is rotatably arranged on the frame of the paralleling machine, and the rotation of the transmission roller 1 can be driven by the motor 40 to drive the worm 73 to rotate and follow the rotation or other conventional driving methods.

[0021] See also Figure 2 , 67. In order to prevent the air storage box 3 from generating suction on the velvet cover when storing air, the air storage box 3 is provided with an anti-suction plate 12 at the jet groove 4, and a plate groove 13 is provided in the jet groove 4 for the anti-suction plate 12 to slide. One end of the plate groove 13 is provided with a pressure member 39 for driving the anti-suction plate 12 to be in a position to block the jet groove 4, wherein the pressure member 39 can be a compression spring, and the bottom end surface of the anti-suction plate 12 is provided with an inclined surface 38 at the jet groove 4. The air storage box 3 is provided with a one-way valve 14 on the side wall of the first piston chamber 10, and the one-way valve 14 only allows the first piston chamber 10 to suck in external air. When the piston plate 5 compresses the first piston chamber 10, the air in the first piston chamber 10 will impact the inclined surface 38, and after reaching a certain pressure, it will push the anti-suction plate 12 to slide, so that the high-pressure gas is ejected from the jet groove 4.

[0022] See also Figure 2 , 3 The second driving mechanism 11 includes a second rotating rod 111, which is rotatably arranged on the fixed block 8 and has first gears 112 at both ends of the axial direction. The first rotating rod 71 has second gears 113 meshingly connected with the first gear 112 at both ends of the axial direction. The second rotating rod 111 is provided with a spiral groove 15, and the second connecting rod 361 passes through the linkage plate 6. The linkage plate 6 is provided with a guide block 16 that forms a sliding fit with the spiral groove 15. The second rotating rod 111 rotates and drives the linkage plate 6 to move in the opposite direction of the strip feeding through the cooperation of the guide block 16 and the spiral groove 15. The cooperation of the guide block 16 and the spiral groove 15 can accelerate the speed of the piston plate 5 compressing the first piston chamber 10 and increase the injection pressure.

[0023] See also Figure 2-5In order to ensure that the linkage plate 6 can reciprocate during the continuous non-directional transmission of the conveying roller 1, the linkage plate 6 is provided with a reversing mechanism 17 at both ends outside the gas storage box 3. The reversing mechanism 17 includes an outer plate 171, an inner plate 173 and an intermediate plate 172. The outer plate 171, the inner plate 173 and the intermediate plate 172 are all slidably arranged at the bottom of the linkage plate 6. The reversing mechanism 17 also includes a multi-directional screw 174, which is rotatably arranged in the linkage plate 6. The multi-directional screw 174 penetrates The outer plate 171, the inner plate 173 and the middle plate 172 are respectively threadedly connected with the outer plate 171, the inner plate 173 and the middle plate 172, wherein the thread rotation direction of the multidirectional screw 174 is divided into three sections, the thread rotation direction of the multidirectional screw 174 and the outer plate 171, the inner plate 173 threaded connection part is the same direction, the thread rotation direction of the multidirectional screw 174 and the middle plate 172, the outer plate 171 threaded connection part is opposite, and the multidirectional screw 174 positively rotates to drive the middle plate 172 and the inner plate 173 to move toward The middle plate 172 and the outer plate 171 move toward the side close to each other, and the multi-directional screw 174 reverses to drive the middle plate 172 and the inner plate 173 to move toward the side away from each other, and drives the middle plate 172 and the outer plate 171 to move toward the side close to each other. The outer plate 171 is provided with an outer rod opening 18 adapted to the second rotating rod 111 on the side close to the middle plate 172, and the inner plate 173 is provided with an inner rod opening 18 adapted to the first rotating rod 71 on the side close to the middle plate 172. The side rod opening 19, the side of the middle plate 172 close to the outer plate 171 is provided with a first rod opening 20 adapted to the second rotating rod 111, the guide block 16 is arranged in the first rod opening 20, the side of the middle plate 172 close to the inner plate 173 is provided with a second rod opening 21, the inner wall of the second rod opening 21 and the inner rod opening 19 are both provided with internal threads threadedly connected to the first rotating rod 71, through the above method, the piston plate 5 can be moved slowly to make the first piston chamber 10 stably inhale, and the piston plate 5 can be moved quickly to achieve the effect of high-pressure jet.

[0024] See also Figure 2 , 45. In order to make the outer plate 171, the inner plate 173 and the middle plate 172 cooperate with each other and cyclically cooperate with the first rotating rod 71 and the second rotating rod 111, the gas storage box 3 is provided with a reversing assembly 22 for driving the multi-directional screw 174 to switch the rotation direction. The reversing assembly 22 includes a first power bevel gear 221, a first linkage bevel gear 222, a second power bevel gear 223, and a second linkage bevel gear 224, and also includes a reversing gear 225. The first linkage bevel gear 222 and the second linkage bevel gear 224 are respectively rotatably arranged on the outer wall of the gas storage box 3 and are respectively located on the front and rear sides of the linkage plate 6. The first power bevel gear 221 and the second power bevel gear 223 are both fixed to the first rotating rod 71 and are respectively located on the front and rear sides of the linkage plate 6. The first power bevel gear 221 and the second power bevel gear 223 are respectively fixed to the first rotating rod 71 and are respectively located on the front and rear sides of the linkage plate 6. 21 is meshed and connected with the first linkage bevel gear 222, the second power bevel gear 223 is meshed and connected with the second linkage bevel gear 224, the reversing gear 225 is fixed to one axial end of the multi-directional screw 174, and the reversing gear 225 can mesh with the first linkage bevel gear 222 and the second linkage bevel gear 224 respectively after following the linkage plate 6 to move back and forth. It should be noted that: the conical surfaces of the first power bevel gear 221 and the second linkage bevel gear 224 are arranged opposite to each other, and after the linkage plate 6 moves to the reversing gear 225 and contacts with the first linkage bevel gear 222, the reversing gear 225 will drive the multi-directional screw 174 to rotate forward, and after the linkage plate 6 moves to the reversing gear 225 and contacts with the second linkage bevel gear 224, the reversing gear 225 will drive the multi-directional screw 174 to rotate reversely.

[0025] See also Figure 2 , 45. In order to keep the outer plate 171, the inner plate 173 and the middle plate 172 stable in the process of cooperating with the first rotating rod 71 or the second rotating rod 111 during the switching process, a slide groove 23 is provided at the bottom of the linkage plate 6, and a slide plate 24 is provided at the top of the outer plate 171, the inner plate 173 and the middle plate 172 to form a sliding connection with the slide groove 23. A plurality of groups of limit slots 25 are provided at the top of the slide groove 23. A side extension plate 26 is provided on the side wall of the gas storage box 3. The bottom of the side extension plate 26 is connected to the slide groove 23. A plurality of groups of limit plates 27 are provided at the corresponding positions of the limit slots 25, and the slide plates 24 at the tops of the outer plates 171, the inner plates 173 and the middle plates 172 are all provided with limit plate slots 37 into which the limit plates 27 are inserted. The multidirectional screw 174 is rotated once to drive the outer plates 171, the inner plates 173 and the middle plates 172 to slide so that the limit plate slots 37 slide to the relative position with another group of limit plates 27. In this way, the outer plates 171 and the middle plates 172 can be stably matched with the second rotating rod 111 or the middle plates 173 can be stably matched with the second rotating rod 111. 2 and the inner plate 173 are stably matched with the first rotating rod 71. It should be noted that: the length of the limit plate 27 is slightly smaller than the maximum distance of a one-way stroke that the linkage plate 6 can move, so that the reversing gear 225 is meshed with the first linkage bevel gear 222 or the second linkage bevel gear 224 to drive the multi-directional screw 174 to rotate, and the outer plate 171, the inner plate 173 and the middle plate 172 move and smoothly match the first rotating rod 71 or the second rotating rod 111, and then the reversing gear 225 and the first linkage bevel gear 2 22 or the second linked bevel gear 224 disengages to allow the limit plate groove 37 of the slide plate 24 to quickly enter the limit plate 27. In this way, the line changing gear can be disengaged from the first linked bevel gear 222 or the second linked bevel gear 224, and the outer plate 171 cooperates with the middle plate 172 and the second rotating rod 111 to quickly allow the limit plate groove 37 to quickly enter the limit plate 27, or the inner plate 173 cooperates with the middle plate 172 and the first rotating rod 71 to quickly allow the limit plate groove 37 to quickly enter the limit plate 27.

[0026] See also Figure 2-5In order to make the high-pressure gas sprayed from the paint spray tank better remove the flying flowers and dust on the cleaning velvet sleeve 2, an annular groove 28 is provided in the middle of the conveying roller 1 on the side of the linkage plate 6 away from the first connecting rod 9, and a bearing 29 is sleeved on the annular groove 28. A fixing rod 30 is fixed on the outer wall of the outer ring of the bearing 29. The inner cavity of the air storage box 3 is located on the inner wall of the side of the linkage plate 6 away from the first connecting rod 9. A base block 31 is provided on the inner wall, and a second piston cavity 32 for the fixing rod 30 to slide is penetrated in the base block 31. A limiting groove 33 is provided on the inner wall of the second piston cavity 32. A resist plate 35 that is slidably connected with the limiting groove 33 is provided on the outer wall of the fixing rod 30, and a spring 34 that resists the resist plate 35 is provided in the limiting groove 33. The linkage plate 6 is provided with a driving member 36 for driving the fixed rod 30 to slide toward the side away from the piston plate 5. The cleaning sleeve 2 is a composite breathable material. For example, the cleaning sleeve 2 adopts a microporous design and flocking process. In the production process of the plastic material, tiny pores can be formed inside the material through processing technology, such as adding a pore-forming agent during injection molding or using a special mold structure. These pores are interconnected to form a breathable channel, allowing air to circulate in the material. After the second piston chamber 32 is compressed by the piston block 362, the fixed rod 30 will drive the transmission roller to move to a certain extent through the bearing 29, causing the cleaning sleeve 2 to deform slightly, and allowing the high-pressure gas to pass through the gaps in the cleaning sleeve 2, thereby effectively blowing away flying flowers and dust.

[0027] See also Figure 4 , 5 The driving member 36 includes a second connecting rod 361 and a piston block 362. The linkage plate 6 slides and drives the piston block 362 to move in the second piston chamber 32 and expand the fixing rod 30, so that the conveying roller 1 moves in a direction away from the other group of conveying rollers 1.

[0028] See also Figure 1-7As shown, when the device is in use, the conveying roller 1 and the worm 73 rotate simultaneously, the rotation of the worm 73 drives the worm wheel 72 to rotate, the rotation of the worm wheel 72 drives the first rotating rod 71 to rotate, the rotation of the first rotating rod 71 will drive the linkage plate 6 to move in the sliver feeding direction through the threaded cooperation with the middle plate 172 and the inner plate 173, the linkage plate 6 moves through the first connecting rod 9 to drive the piston plate 5 to move so that the first piston chamber 10 inhales air, and in the process of the linkage plate 6 driving the piston plate 5 to move, the second connecting rod 361 will compress the second The piston chamber 32 is compressed by the second piston chamber 32 to a certain extent, and the fixing rod 30 compresses the spring 34 and drives the transmission roller to move toward the side away from the other transmission roller through the bearing 29, so that the cleaning velvet sleeve 2 undergoes a certain deformation until the reversing gear 225 contacts the second linkage bevel gear 224. After the reversing gear 225 is meshed with the linkage bevel gear, the reversing gear 225 drives the multi-directional screw 174 to rotate, so that the inner plate 173 and the middle plate 172 move in opposite directions and disengage. The outer plate 171 is connected with the first rotating rod 71 by a thread, and the middle plate 172 moves toward the side close to each other, so that the outer plate 171 and the middle plate 172 cooperate with the second rotating rod 111. After the middle plate 172 and the outer plate 171 cooperate with the second rotating rod 111, the linkage plate 6 is quickly driven to move through the cooperation of the guide block 16 and the spiral groove 15, and the reversing gear 225 is disengaged from the second linkage bevel gear 224. At the same time, the insert plate is quickly inserted into the limit plate groove 37 to ensure that the middle plate 172 and the outer plate 171 and the second rotating rod 111 cooperate stably. At this time, the rotation of the second rotating rod 111 will drive the linkage plate 6 to move in the opposite direction of the strip feeding, so that the piston plate 5 compresses the first piston chamber 10. After the pressure in the first piston chamber 10 increases, the anti-suction plate 12 will be driven to open through the inclined surface 38, so that the high-pressure gas will be ejected outward and will blow off the tightly adhered flying flowers and dust through the gap of the cleaning velvet cover 2, and cooperate with the external suction pipe to suck away the flying flowers and dust, so as to achieve a thorough cleaning of the cleaning velvet cover 2 once a period of time.

[0029] After the linkage plate 6 moves to the point where the reversing gear 225 meshes with the first linkage bevel gear 222, the multi-directional screw 174 rotates to drive the middle plate 172 and the outer plate 171 to slide in a direction away from each other. At the same time, the middle plate 172 and the inner plate 173 move toward the side close to each other, so that the middle plate 172 and the inner plate 173 are threadedly connected with the first rotating rod 71 again. At this time, the reversing gear 225 is disengaged from the first linkage bevel gear 222, and the slide plate 24 slides to align the limit plate groove 37 and enter the other limit plate 27, so that the linkage plate 6 is moved along the strip feeding direction again through the cooperation of the middle plate 172, the inner plate 173 and the first rotating rod 71, so that the first piston chamber 10 is inhaled again, ready to clean the cleaning velvet sleeve 2 next time.

[0030] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A velvet sleeve type cleaning device for a drawing frame, comprising two sets of conveying rollers (1) and a cleaning velvet sleeve (2) sleeved on the conveying rollers (1), characterized in that: An air storage box (3) is provided inside the cleaning fleece sleeve (2) and between the two groups of conveying rollers (1). An air jet slot (4) is provided on the top of the air storage box (3). A piston plate (5) is provided inside the air storage box (3). A linkage plate (6) is slidably provided on the air storage box (3). Both ends of the linkage plate (6) in the length direction extend to the outside of the air storage box (3). First driving mechanisms (7) for driving the linkage plate (6) to slide along the strip feeding direction are symmetrically provided on both sides of the air storage box (3). Second driving mechanisms (11) for driving the linkage plate (6) to move in the opposite direction of the strip feeding are also provided on both sides of the air storage box (3). The first driving mechanism (7) comprises a first rotating rod (71), a worm wheel (72) and a worm (73). The worm (73) is coaxially arranged at both ends of the axial direction of the conveying roller (1). Fixed blocks (8) are symmetrically provided on both sides of the air storage box (3). ), the first rotating rod (71) is rotatably arranged on the fixed block (8), the worm gears (72) are respectively fixedly arranged at both ends of the first rotating rod (71) in the axial direction and are respectively meshed with the worm gears (73) arranged in the axial direction of the conveying roller (1), the first rotating rod (71) passes through the linkage plate (6) and is threadedly connected with the linkage plate (6), one end of the linkage plate (6) is provided with a first connecting rod (9) connected to the piston plate (5), a first piston chamber (10) is formed in the gas storage box (3) on the side of the piston plate (5) away from the first connecting rod (9), the first driving mechanism (7) drives the piston plate (5) to move through the first connecting rod (9) so that the first piston chamber (10) inhales air, and the second driving mechanism (11) drives the piston plate (5) to move through the first connecting rod (9) so that the gas in the first piston chamber (10) is sprayed from the spray groove (4) to the velvet sleeve.

2. A draw frame velvet sleeve cleaning device according to claim 1, characterized in that: The gas storage box (3) is provided with an anti-suction plate (12) at the jet groove (4), the jet groove (4) is provided with a plate groove (13) for the anti-suction plate (12) to slide, one end of the plate groove (13) is provided with a pressure member (39) for driving the anti-suction plate (12) to be in a position to block the jet groove (4), the bottom end surface of the anti-suction plate (12) is provided with an inclined surface (38) at the jet groove (4), and the gas storage box (3) is provided with a one-way valve (14) on the side wall of the first piston chamber (10).

3. A draw frame velvet sleeve cleaning device according to claim 1, characterized in that: The second driving mechanism (11) comprises a second rotating rod (111), the second rotating rod (111) being rotatably mounted on the fixed block (8) and having first gears (112) respectively disposed at two axial ends thereof, the first rotating rod (71) having second gears (113) respectively disposed at two axial ends thereof and meshingly connected with the first gears (112), the second rotating rod (111) being provided with a spiral groove (15), the second connecting rod (361) penetrating the linkage plate (6), the linkage plate (6) being provided with a guide block (16) which is slidably engaged with the spiral groove (15), the second rotating rod (111) being rotated and driving the linkage plate (6) to move in the opposite direction of sliver feeding through the engagement of the guide block (16) and the spiral groove (15).

4. A draw frame velvet sleeve cleaning device according to claim 3, characterized in that: Both ends of the linkage plate (6) located outside the gas storage box (3) are provided with a reversing mechanism (17), the reversing mechanism (17) comprising an outer plate (171), an inner plate (173) and an intermediate plate (172), the outer plate (171), the inner plate (173) and the intermediate plate (172) being all slidably disposed at the bottom of the linkage plate (6), the reversing mechanism (17) further comprising a multidirectional screw (174), the multidirectional screw (174) being rotatably disposed in the linkage plate (6), The rod (174) penetrates the outer plate (171), the inner plate (173) and the middle plate (172) and is respectively threadedly connected with the outer plate (171), the inner plate (173) and the middle plate (172). The multidirectional screw (174) rotates forward to drive the middle plate (172) and the inner plate (173) to move toward each other and to drive the middle plate (172) and the outer plate (171) to move away from each other. The multidirectional screw (174) rotates reversely to drive the middle plate (171) 2) and the inner plate (173) move toward a side away from each other, driving the middle plate (172) and the outer plate (171) to move toward a side close to each other, the outer plate (171) is provided with an outer rod opening (18) matched with the second rotating rod (111) on a side close to the middle plate (172), the inner plate (173) is provided with an inner rod opening (19) matched with the first rotating rod (71) on a side close to the middle plate (172), and the middle plate (172) is provided with an inner rod opening (19) matched with the first rotating rod (71) on a side close to the outer plate ( A first rod opening (20) adapted to the second rotating rod (111) is provided on one side of the intermediate plate (171), the guide block (16) being arranged in the first rod opening (20), a second rod opening (21) being provided on one side of the intermediate plate (172) close to the inner plate (173), the inner walls of the second rod opening (21) and the inner rod opening (19) both being provided with internal threads threadedly connected to the first rotating rod (71), and a reversing assembly (22) for driving the multidirectional screw rod (174) to switch the rotation direction is provided on the gas storage box (3).

5. A draw frame velvet sleeve cleaning device according to claim 4, characterized in that: The reversing assembly (22) comprises a first power bevel gear (221), a first linkage bevel gear (222), a second power bevel gear (223), a second linkage bevel gear (224), and a reversing gear (225). The first linkage bevel gear (222) and the second linkage bevel gear (224) are rotatably disposed on the outer wall of the gas storage box (3) and are respectively located on the front and rear sides of the linkage plate (6). The first power bevel gear (221) and the second power bevel gear (223) are both fixed to the first linkage bevel gear (224). A rotating rod (71) is located on the front and rear sides of the linkage plate (6), the first power bevel gear (221) is meshed with the first linkage bevel gear (222), the second power bevel gear (223) is meshed with the second linkage bevel gear (224), the reversing gear (225) is fixed to one axial end of the multi-directional screw (174), and the reversing gear (225) moves forward and backward with the linkage plate (6) and then meshes with the first linkage bevel gear (222) and the second linkage bevel gear (224).

6. A draw frame velvet sleeve cleaning device according to claim 5, characterized in that: The bottom of the linkage plate (6) is provided with a slide groove (23), and the tops of the outer plate (171), the inner plate (173) and the middle plate (172) are all provided with a slide plate (24) that is slidably connected to the slide groove (23).

7. A draw frame velvet sleeve cleaning device according to claim 6, characterized in that: A plurality of groups of limit slots (25) are provided on the top of the slide groove (23); a side extension plate (26) is provided on the side wall of the gas storage box (3); a plurality of groups of limit plates (27) are provided at the bottom of the side extension plate (26) at positions corresponding to the limit slots (25); and the slide plates (24) on the tops of the outer plate (171), the inner plate (173) and the middle plate (172) are all provided with limit plate slots (37) into which the limit plates (27) are inserted; and the multidirectional screw rod (174) rotates once to drive the outer plate (171), the inner plate (173) and the middle plate (172) to slide, so that the limit plate slots (37) slide to a position relative to another group of limit plates (27).

8. The draw frame velvet sleeve cleaning device according to claim 1, characterized in that: An annular groove (28) is provided in the middle of the conveying roller (1) on the side of the linkage plate (6) away from the first connecting rod (9), a bearing (29) is sleeved on the annular groove (28), a fixing rod (30) is fixed on the outer wall of the outer ring of the bearing (29), a base block (31) is provided on the inner wall of the inner cavity of the air storage box (3) located on the side of the linkage plate (6) away from the first connecting rod (9), a second piston cavity (32) for sliding of the fixing rod (30) is penetrated in the base block (31), a limiting groove (33) is provided on the inner wall of the second piston cavity (32), a butt plate (35) slidably connected to the limiting groove (33) is provided on the outer wall of the fixing rod (30), a spring (34) abutting against the butt plate (35) is provided in the limiting groove (33), a driving member (36) for driving the fixing rod (30) to slide toward the side away from the piston plate (5) is provided on the linkage plate (6), and the cleaning fleece sleeve (2) is a composite breathable material.

9. A draw frame velvet sleeve cleaning device according to claim 8, characterized in that: The driving member (36) comprises a second connecting rod (361) and a piston block (362); the linkage plate (6) slides and drives the piston block (362) to move in the second piston chamber (32) and expand the fixed rod (30), so that the conveying roller (1) moves in a direction away from the other group of conveying rollers (1).

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