Four-roller drafting device for roving frame

Abstract

The utility model discloses a four-roller drafting device for a roving frame. The four-roller drafting device comprises a bottom plate, a first roller, a second roller, a third roller and a fourth roller. Vertical plates are arranged on the upper surface of the bottom plate in a bilateral symmetry mode, a second U-shaped frame is erected between the upper ends of the two vertical plates, and the two vertical plates are spliced into a front-back open type hollow cuboid structure; a first roller, a second roller, a third roller and a fourth roller are sequentially arranged between the two vertical plates at intervals from front to back, the first roller, the second roller, the third roller and the fourth roller are horizontally and transversely aligned, first rotating shafts are coaxially arranged at the two ends of the first roller, and the first rotating shafts are rotationally connected with the corresponding vertical plates; a driving assembly is arranged at the left end of the first rotating shaft close to the left side, abutting assemblies are arranged over the first roller, the second roller, the third roller and the fourth roller, and then cotton yarn long strips are drafted through cooperation of the abutting assemblies and the rotating speed difference. According to the utility model, the phenomena of flock and dust adhesion are avoided, and the roving product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, in particular to a four-roller drafting device for a roving frame. Background Art

[0002] The main purpose of the roving frame is to draw the drawn slivers to make them longer and thinner, and spin them into rovings with uniform strands. This is mainly accomplished by the drafting device on the roving frame. The current roving frame mainly adopts a four-roller drafting form, but the drafting rollers used to draft the long cotton yarn will produce short fibers and dust attached to their surfaces during the drafting process, thereby reducing the drafting effect. At the same time, short fibers and dust will also affect the quality of the roving. Therefore, the above problems need to be solved urgently. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a four-roller drafting device for a roving machine. Through the coordinated use of a first fixed rod, a first rotating drum and a cleaning velvet belt, it is convenient to clean the corresponding first roller, second roller, third roller and fourth roller, thereby avoiding the occurrence of short fluff and dust adhesion, and improving the quality of the roving product.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the utility model is a four-roller drafting device for a roving machine, and its innovation lies in: comprising a bottom plate, a vertical plate, a first roller, a second roller, a third roller, a fourth roller and a driving assembly; vertically longitudinally arranged vertical plates are symmetrically arranged on the upper surface of the horizontally arranged bottom plate at intervals on the left and right, and a second U-shaped frame is also horizontally and longitudinally arranged between the upper end surfaces of the two vertical plates, so as to be spliced ​​into a hollow rectangular structure that is open at both the front and the back; the first roller, the second roller, the third roller and the fourth roller are also arranged in sequence from front to back in the middle position between the two vertical plates, and the first roller, the second roller, the third roller and the fourth roller are arranged in sequence at intervals from front to back, and the first roller, the second roller, the third roller and the fourth roller are arranged in sequence from front to back. The pull rollers are arranged horizontally and laterally aligned, and first rotating shafts are respectively provided at both ends thereof by coaxially screwing through flanges, and the other end of each first rotating shaft vertically extends out of the corresponding vertical plate, and is rotatably connected to the corresponding vertical plate through bearings; a driving assembly is also provided at the left end of each first rotating shaft on the left side, and the corresponding first roller, second roller, third roller and fourth roller are driven to rotate by the driving assembly, and a clamping assembly is also aligned directly above the first roller, second roller, third roller and fourth roller, respectively, and then the first roller, second roller, third roller and fourth roller are respectively matched with the corresponding clamping assembly, and the speed difference is used to stretch the cotton yarn strips.

[0005] Preferably, the first roller, the second roller, the third roller and the fourth roller have the same structure, and are all composed of a plurality of anti-slip stripes which are fixedly sleeved coaxially and spaced in sequence along the length direction of the roller shaft.

[0006] Preferably, each of the driving components comprises a first motor, a motor fixing seat, a main gear and a slave gear; on each of the first rotating shafts on the left side, a corresponding vertical plate portion extending from its left end is also coaxially sleeved and fixed with a slave gear, and each of the slave gears is arranged without interfering with the corresponding vertical plate; a gate-shaped motor fixing seat is also provided on the left side surface of the vertical plate on the left side relative to directly above each slave gear, and an opening groove of each motor fixing seat is opened in the vertical up and down directions, and its open ends are respectively vertically fixedly connected to the corresponding positions on the left side surface of the corresponding vertical plate, and are respectively arranged without interfering with the corresponding slave gears; in the outer bottom surface of each motor fixing seat A first motor is also horizontally arranged at the intermediate position, and the output end of each of the first motors extends horizontally and vertically to the inside of the corresponding motor fixing seat, and is respectively meshed and connected with the corresponding slave gear through the main gear; each of the motor fixing seats does not interfere with the rotation of the corresponding main gear, and under the drive of the first motor, the main gear and the corresponding slave gear are meshed and cooperated to drive the corresponding first roller, second roller, third roller and fourth roller to rotate around their own axes, and by controlling the four first motors respectively, the rotation speeds of the first roller, second roller, third roller and fourth roller are different, and then the speed difference is used to stretch the cotton yarn strips.

[0007] Preferably, a hollow rectangular cover shell is respectively provided on the left side surface of the vertical plate on the left side relative to each first motor position, and the right side surface of each cover shell is open and vertically fixedly connected to the corresponding position of the left side surface of the vertical plate, and respectively covers the corresponding first motor, motor fixing seat, main gear and slave gear interval therein, thereby protecting the corresponding drive components and ensuring that there is no interference with the driving action of the corresponding drive components.

[0008] Preferably, a third U-shaped frame is horizontally provided between the two vertical plates relative to directly above the first roller, and the third U-shaped frame is spaced inside the second U-shaped frame, the opening groove of the third U-shaped frame is arranged along the horizontal longitudinal direction, and its open end is arranged downward, and covers the first roller, the second roller, the third roller and the fourth roller therein; electric push rods are vertically symmetrically provided at four right angles on the upper surface of the second U-shaped frame relative to the upper surface of the third U-shaped frame, the fixed end of each electric push rod is screwed and fixed to the corresponding position of the upper surface of the second U-shaped frame, and the pushing ends thereof extend vertically downward to the inside of the second U-shaped frame, and are screwed and fixed to the corresponding position of the upper surface of the third U-shaped frame, thereby driving the third U-shaped frame to make vertical up and down reciprocating motion in the area directly above the first roller, the second roller, the third roller and the fourth roller.

[0009] Preferably, each of the tightening components includes a second rotating shaft and a rubber roller; four second rotating shafts are arranged in sequence from front to back at the inner side of the third U-shaped frame near its open end, each of the second rotating shafts is arranged horizontally and transversely, and its two ends are rotatably connected to the corresponding inner side surfaces of the third U-shaped frame through bearings, and ensure that the four second rotating shafts are respectively arranged directly above the corresponding first roller, second roller, third roller and fourth roller; four rubber rollers are also arranged on each of the second rotating shafts in sequence along its length direction and are coaxially sleeved and fixed, and each of the rubber rollers is in contact with the anti-slip stripes on the first roller, second roller, third roller and fourth roller. The rubber rollers are matched, and their setting positions correspond to the setting positions of the anti-slip stripes on the first roller, the second roller, the third roller and the fourth roller, respectively, so that the corresponding cotton yarn strips are clamped respectively through the cooperation of the rubber rollers and the corresponding anti-slip strips, and the corresponding cotton yarn strips are driven to be transmitted longitudinally by rotation, and then the drafting operation is performed through the speed difference; the horizontal plane where the bottom end of each rubber roller is located is arranged below the horizontal plane where the opening end of the third U-shaped frame is located, so as to ensure that when the cotton yarn strips are clamped by the cooperation of the rubber rollers and the corresponding anti-slip strips, the third U-shaped frame does not interfere with the rotation of the first roller, the second roller, the third roller and the fourth roller.

[0010] Preferably, a second fixing rod is horizontally and laterally aligned inside the third U-shaped frame relative to the top of each second rotating shaft, and four second rotating cylinders matching the rubber rollers are sequentially spaced and coaxially sleeved on each second fixing rod along its length direction, the setting position of each second rotating cylinder corresponds to the setting position of the corresponding rubber roller, and they are respectively connected to the corresponding second fixing rod for rotation around their own axes, and it is ensured that they do not move left and right on the corresponding second fixing rod; connecting rods are respectively coaxially screwed through flanges at both ends of each second fixing rod, and the other end of each connecting rod vertically extends out of the third U-shaped frame. The corresponding outer side of the frame, and the corresponding connecting rod is screwed and fixed to the corresponding outer side of the third U-shaped frame through a pressing plate; the two outer side surfaces of the third U-shaped frame are respectively vertically embedded with waist-shaped holes matching the connecting rods in the vertical up and down directions relative to each connecting rod position, and then the vertical up and down position of the second fixing rod is adjusted by the cooperation of the connecting rod and the corresponding waist-shaped hole, and after ensuring that the second rotating drum is in contact with the corresponding rubber pad, the connecting rod is screwed and fixed to the third U-shaped frame through a pressing plate; a cleaning velvet belt matching the rubber roller is also annularly sleeved on every four second rotating drums arranged along the longitudinal direction, and then the corresponding rubber roller is cleaned by the cleaning velvet belt.

[0011] Preferably, it also includes a first U-shaped frame, a first fixing rod, a first rotating drum and a lifting assembly; a first U-shaped frame is also horizontally provided between the two vertical plates relative to directly below the first roller, and the first U-shaped frame is spaced apart and arranged directly above the bottom plate, the opening groove of the first U-shaped frame is arranged along the horizontal longitudinal direction, and its open end is arranged upward, and covers the first roller, the second roller, the third roller and the fourth roller therein; lifting assemblies are also vertically symmetrically provided at four right angles on the upper surface of the bottom plate relative to the lower surface of the first U-shaped frame, and the lifting ends of each of the lifting assemblies are vertically arranged upward, and are respectively screwed and fixed to the corresponding positions of the lower surface of the first U-shaped frame, thereby driving the first U-shaped frame to perform vertical up and down reciprocating motion in the area directly below the first roller, the second roller, the third roller and the fourth roller; four first fixing rods are also spaced apart in sequence from front to back inside the first U-shaped frame near its open end, each of the first fixing rods is horizontally arranged horizontally, and its two ends are respectively screwed and connected to the corresponding inner side surfaces of the first U-shaped frame, And ensure that the four first fixed rods are respectively arranged directly below the corresponding first roller, second roller, third roller and fourth roller; on each of the first fixed rods, four first rotating drums matching the anti-slip stripes are also coaxially sleeved in sequence and at intervals along its length direction, the setting position of each first rotating drum corresponds to the setting position of the corresponding anti-slip stripes on the first roller, second roller, third roller and fourth roller, and they are respectively connected to the corresponding first fixed rod for rotation around their own axes, and ensure that they do not move left and right on the corresponding first fixed rod, and then ensure that the first rotating drum contacts the corresponding anti-slip stripes on the first roller, second roller, third roller and fourth roller through the lifting assembly, and ensure that the first U-shaped frame does not interfere with the rotation of the first roller, second roller, third roller and fourth roller; on each of the four first rotating drums arranged along the longitudinal direction, a cleaning velvet belt matching the anti-slip stripes is also annularly sleeved, and then the corresponding anti-slip stripes are cleaned by the cleaning velvet belt.

[0012] Preferably, each of the lifting components comprises a box body, a threaded rod, a main bevel gear, a slave bevel gear, a second motor and a sleeve; a box body is vertically symmetrically arranged at four right angles relative to the lower surface of the first U-shaped frame on the upper surface of the bottom plate, each of the box bodies is a hollow rectangular parallelepiped structure, and its lower surface is vertically fixedly connected to the corresponding positions of the upper surface of the bottom plate, and a circular hole is embedded in the middle position of its upper surface, and each of the circular holes is connected to the interior of the corresponding box body; a threaded rod is vertically and coaxially arranged at the middle position of the interior of each of the box bodies, and the diameter of each of the threaded rods is smaller than the diameter of the corresponding circular hole, the lower end of each of the threaded rods is rotatably connected to the inner bottom surface of the corresponding box body, and the upper ends thereof extend vertically upward through the circular holes to the upper surface of the corresponding box body, and are respectively arranged without interfering with the upper surface of the corresponding box body; on each of the threaded rods, a position close to its lower end relative to A slave bevel gear is coaxially sleeved and fixed inside the box body, and each of the slave bevel gears is arranged without interfering with the inner bottom surface and the inner side surface of the corresponding box body; a second motor is horizontally arranged on an outer side surface of each box body relative to the position of the slave bevel gear, and the output end of each of the second motors extends vertically to the inside of the corresponding box body in the direction of the slave bevel gear, and is respectively meshed and connected with the corresponding slave bevel gear through the main bevel gear, thereby driving the corresponding threaded rod to rotate; a sleeve matching the circular hole is coaxially sleeved at the upper end of each threaded rod, and each sleeve is screwed with the corresponding threaded rod, and its upper end extends vertically upward through the circular hole to the upper surface of the corresponding box body, and is respectively screwed and fixed at four right angles to the lower surface of the first U-shaped frame, thereby driving the first U-shaped frame to move vertically up and down through the meshing cooperation of the main bevel gear and the slave bevel gear under the drive of the second motor.

[0013] Preferably, they also include sliding rods and sliding rails; sliding rails are vertically symmetrically arranged on the left and right sides of each sleeve relative to the inside of the corresponding box, and each of the sliding rails is fixedly connected to the inner side of the corresponding box; sliding rods are horizontally arranged between the left and right outer sides of each sleeve and the corresponding sliding rails, one end of each sliding rod is fixedly connected to the corresponding outer side of the corresponding sleeve, and the other end thereof is matched with the corresponding sliding rail, thereby ensuring the stability of the vertical up and down movement of the sleeve through the coordinated use of the sliding rod and the sliding rail.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model facilitates the cleaning of the corresponding first roller, second roller, third roller and fourth roller by using the first fixed rod, the first rotating drum and the cleaning velvet belt, thereby avoiding the occurrence of short lint and dust adhesion, and improving the quality of the roving product;

[0016] (2) The utility model provides a lifting assembly to facilitate the separation of the cleaning velvet belt on the first rotating drum from the first roller, the second roller, the third roller and the fourth roller, thereby facilitating the replacement of the corresponding cleaning velvet belt, saving time and effort and ensuring the cleaning effect;

[0017] (3) The connecting rod of the utility model can be moved up and down through the waist-shaped hole and then fixed by bolts, and the second fixing rod is fixedly connected to the corresponding connecting rod by screw connection, so that it is convenient to replace the corresponding cleaning velvet belt after the cleaning velvet belt on the second rotating drum is separated from the corresponding rubber roller, which saves time and labor and ensures the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The utility model is a structural schematic diagram of a four-roller drafting device for a roving frame.

[0020] Figure 2 for Figure 1 Medium AA view.

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the lifting component.

[0022] Among them, 1-bottom plate; 2-vertical plate; 3-first rotating shaft; 4-first roller; 5-second roller; 6-third roller; 7-fourth roller; 8-first U-shaped frame; 9-lifting assembly; 10-first fixed rod; 11-first rotating drum; 12-cleaning velvet belt; 13-first motor; 14-motor fixing seat; 15-main gear; 16-slave gear; 17-cover; 18-second U-shaped frame; 19-electric push rod; 20-third U-shaped frame; 21-second rotating shaft; 22-rubber roller; 23-connecting rod; 24-second fixed rod; 25-second rotating drum; 91-box; 92-threaded rod; 93-main bevel gear; 94-slave bevel gear; 95-second motor; 96-sleeve; 97-slide rod; 98-slide rail; 99-limiting plate. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be clearly and completely described below through specific implementation methods.

[0024] The utility model discloses a four-roller drafting device for a roving frame, comprising a bottom plate 1, a vertical plate 2, a first roller 4, a second roller 5, a third roller 6, a fourth roller 7 and a driving assembly; the specific structure is as follows Figures 1 to 3 As shown, vertically arranged vertical plates 2 are symmetrically arranged at intervals on the upper surface of the horizontally arranged bottom plate 1, and a second U-shaped frame 18 is also horizontally and longitudinally arranged between the upper end surfaces of the two vertical plates 2, thereby splicing into a hollow rectangular structure that is open at both the front and the back; the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7 are arranged in sequence from front to back in the middle position between the two vertical plates 2. The first roller 4, the second roller 5, the third roller 6 and the fourth roller 7 have the same structure, and are all arranged on the roller shaft along the length direction thereof with a plurality of anti-slip stripes arranged in sequence and spaced coaxially sleeved and fixed; the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7 are all arranged horizontally and transversely aligned , and at both ends thereof, a first rotating shaft 3 is coaxially screwed through a flange, and the other end of each first rotating shaft 3 vertically extends out a corresponding vertical plate 2, and is rotatably connected to the corresponding vertical plate 2 through a bearing; a driving assembly is also provided at the left end of each first rotating shaft 3 on the left side, and the corresponding first roller 4, second roller 5, third roller 6 and fourth roller 7 are driven to rotate by the driving assembly, and a clamping assembly is also aligned directly above the first roller 4, second roller 5, third roller 6 and fourth roller 7, and then the first roller 4, second roller 5, third roller 6 and fourth roller 7 are respectively matched with the corresponding clamping assembly, and the speed difference is used to stretch the cotton yarn strips.

[0025] Each driving assembly of the utility model includes a first motor 13, a motor fixing seat 14, a main gear 15 and a slave gear 16; Figure 1As shown, on each first rotating shaft 3 on the left side, a corresponding vertical plate 2 extending from its left end is also coaxially sleeved and fixed with a slave gear 16, and each slave gear 16 is arranged without interfering with the corresponding vertical plate 2; a gate-shaped motor fixing seat 14 is also arranged on the left side surface of the vertical plate 2 on the left side relative to the top of each slave gear 16, and the opening groove of each motor fixing seat 14 is opened in the vertical up and down direction, and its open end is respectively vertically fixedly connected to the corresponding position of the left side surface of the corresponding vertical plate 2, and is respectively arranged without interfering with the corresponding slave gear 16; a first motor 13 is also horizontally and laterally arranged in the middle position of the outer bottom surface of each motor fixing seat 14, and the output end of each first motor 13 extends horizontally and vertically to the inside of the corresponding motor fixing seat 14, and is respectively meshed and connected with the corresponding slave gear 16 through the main gear 15; wherein, each motor fixing seat 14 does not interfere with the rotation of the corresponding main gear 15. The utility model is driven by the first motor 13, through the meshing cooperation of the main gear 15 and the corresponding slave gear 16, to respectively drive the corresponding first roller 4, the second roller 5, the third roller 6 and the fourth roller 7 to rotate around their own axes, and by respectively controlling the four first motors 13, the rotation speeds of the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7 are different, and then the rotation speed difference is used to perform the drafting operation on the cotton yarn strips.

[0026] like Figure 1 As shown, a hollow rectangular cover shell 17 is respectively provided on the left side surface of the left vertical plate 2 relative to each first motor 13. The right side surface of each cover shell 17 is open, and is vertically fixedly connected to the corresponding position of the left side surface of the vertical plate 2, and the corresponding first motor 13, motor fixing seat 14, main gear 15 and slave gear 16 are respectively covered therein, thereby protecting the corresponding drive components and ensuring that there is no interference with the driving action of the corresponding drive components.

[0027] The utility model further has a third U-shaped frame 20 horizontally disposed between the two vertical plates 2 relative to the first roller 4, and the third U-shaped frame 20 is disposed inside the second U-shaped frame 18 at intervals, such as Figure 1 As shown, the opening groove of the third U-shaped frame 20 is arranged along the horizontal longitudinal direction, and its open end is arranged downward, and the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7 are covered therein; electric push rods 19 are also vertically symmetrically arranged at four right angles on the upper surface of the second U-shaped frame 18 relative to the upper surface of the third U-shaped frame 20, and the fixed end of each electric push rod 19 is screwed and fixed to the corresponding position of the upper surface of the second U-shaped frame 18, and the pushing end thereof extends vertically downward to the inside of the second U-shaped frame 18, and is screwed and fixed to the corresponding position of the upper surface of the third U-shaped frame 20, thereby driving the third U-shaped frame 20 to perform vertical up and down reciprocating motion in the area directly above the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7.

[0028] Each of the pressing components includes a second rotating shaft 21 and a rubber roller 22; Figure 1 , Figure 2 As shown, four second rotating shafts 21 are sequentially arranged from front to back at the inner side of the third U-shaped frame 20 near its open end, each of the second rotating shafts 21 is horizontally arranged, and its two ends are rotatably connected to the corresponding inner side surface of the third U-shaped frame 20 through bearings, and it is ensured that the four second rotating shafts 21 are respectively arranged directly above the corresponding first roller 4, second roller 5, third roller 6 and fourth roller 7; four rubber rollers 22 are sequentially arranged on each second rotating shaft 21 along its length direction, and each rubber roller 22 matches the anti-slip stripes on the first roller 4, second roller 5, third roller 6 and fourth roller 7, and their arrangement positions are respectively arranged at the upper side of the first roller 4, second roller 5, third roller 6 and fourth roller 7. They respectively correspond to the setting positions of the anti-slip stripes on the corresponding first roller 4, second roller 5, third roller 6 and fourth roller 7, and then the corresponding cotton yarn strips are clamped respectively through the cooperation of the rubber roller 22 and the corresponding anti-slip strips, and the corresponding cotton yarn strips are driven to be transmitted longitudinally by rotation, and then the drafting operation is performed through the speed difference; the horizontal plane where the bottom end of each rubber roller 22 is located is set below the horizontal plane where the opening end of the third U-shaped frame 20 is located, so as to ensure that when the cotton yarn strips are clamped by the cooperation of the rubber roller 22 and the corresponding anti-slip strips, the third U-shaped frame 20 does not interfere with the rotation of the corresponding first roller 4, second roller 5, third roller 6 and fourth roller 7.

[0029] like Figure 1 , Figure 2As shown, a second fixing rod 24 is horizontally aligned with each second rotating shaft 21 inside the third U-shaped frame 20, and four second rotating cylinders 25 matching the rubber rollers 22 are sequentially spaced and coaxially sleeved on each second fixing rod 24 along its length direction. The setting position of each second rotating cylinder 25 corresponds to the setting position of the corresponding rubber roller 22, and it is respectively connected to the corresponding second fixing rod 24 around its own axial rotation, and it is ensured that it does not move left and right on the corresponding second fixing rod 24; connecting rods 23 are respectively coaxially screwed through flanges at both ends of each second fixing rod 24, and the other end of each connecting rod 23 vertically extends out of the corresponding outer side of the third U-shaped frame 20. On the side, the corresponding connecting rod 23 is screwed and fixed to the corresponding outer side surface of the third U-shaped frame 20 through a pressing plate; on the two outer side surfaces of the third U-shaped frame 20 relative to each connecting rod 23, waist-shaped holes matching the connecting rod 23 are vertically embedded and penetrated in the vertical up and down directions, and then the vertical up and down position of the second fixing rod 24 is adjusted by the cooperation of the connecting rod 23 and the corresponding waist-shaped holes, and after ensuring that the second rotating drum 25 is in contact with the corresponding rubber pad, the connecting rod 23 is screwed and fixed to the third U-shaped frame 20 through a pressing plate; a cleaning velvet belt 12 matching the rubber roller 22 is also annularly sleeved on every four second rotating drums 25 arranged along the longitudinal direction, and then the corresponding rubber roller 22 is cleaned by the cleaning velvet belt 12.

[0030] The utility model further has a first U-shaped frame 8 horizontally disposed between the two vertical plates 2 and directly below the first roller 4, and the first U-shaped frame 8 is spaced and disposed directly above the bottom plate 1. Figure 1 As shown, the opening groove of the first U-shaped frame 8 is arranged along the horizontal longitudinal direction, and its open end is arranged upward, and the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7 are covered therein; the upper surface of the bottom plate 1 is vertically symmetrically provided with lifting components 9 at four right angles relative to the lower surface of the first U-shaped frame 8, and the lifting end of each lifting component 9 is vertically arranged upward, and is respectively screwed and fixed to the corresponding position of the lower surface of the first U-shaped frame 8, thereby driving the first U-shaped frame 8 to perform vertical up and down reciprocating motion in the area directly below the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7;

[0031] like Figure 1 , Figure 2As shown, four first fixing rods 10 are arranged in sequence from front to back at the inside of the first U-shaped frame 8 near its open end, each of the first fixing rods 10 is arranged horizontally, and its two ends are respectively screwed to the corresponding inner side surface of the first U-shaped frame 8, and it is ensured that the four first fixing rods 10 are respectively arranged directly below the corresponding first roller 4, second roller 5, third roller 6 and fourth roller 7; on each first fixing rod 10, four first rotating drums 11 matching with anti-slip stripes are arranged coaxially and sleeved in sequence along its length direction, and the setting position of each first rotating drum 11 is consistent with the corresponding anti-slip stripes on the first roller 4, second roller 5, third roller 6 and fourth roller 7. The setting positions of the patterns correspond to each other, and they are respectively connected to the corresponding first fixed rods 10 for rotation around their own axes, and ensure that they do not move left and right on the corresponding first fixed rods 10, and then ensure that the first rotating drum 11 contacts the corresponding anti-slip stripes on the corresponding first rollers 4, second rollers 5, third rollers 6 and fourth rollers 7 through the lifting assembly 9, and ensure that the first U-shaped frame 8 does not interfere with the rotation of the corresponding first rollers 4, second rollers 5, third rollers 6 and fourth rollers 7; the utility model also has a cleaning velvet belt 12 matching the anti-slip stripes in an annular sleeve on every four first rotating drums 11 arranged along the longitudinal direction, and then the corresponding anti-slip stripes are cleaned by the cleaning velvet belt 12.

[0032] Each lifting assembly 9 includes a box 91, a threaded rod 92, a main bevel gear 93, a secondary bevel gear 94, a second motor 95, a sleeve 96, a slide rod 97 and a slide rail 98; Figure 1 , Figure 3 As shown, boxes 91 are vertically symmetrically provided at four right angles relative to the lower surface of the first U-shaped frame 8 on the upper surface of the bottom plate 1. Each box 91 is a hollow rectangular parallelepiped structure, and its lower surface is vertically fixedly connected to the corresponding position of the upper surface of the bottom plate 1, and a circular hole is embedded in the middle position of its upper surface, and each circular hole is connected to the interior of the corresponding box 91; a threaded rod 92 is vertically and coaxially provided at the middle position of the interior of each box 91, and the diameter of each threaded rod 92 is smaller than the diameter of the corresponding circular hole, and the lower end of each threaded rod 92 is rotatably connected to the inner bottom surface of the corresponding box 91, and the upper end thereof extends vertically upward through the circular hole to the upper surface of the corresponding box 91, and is respectively arranged without interfering with the upper surface of the corresponding box 91; a slave bevel gear 94 is coaxially sleeved and fixedly provided on each threaded rod 92 at its lower end relative to the interior of the box 91, and each slave bevel gear 94 is respectively arranged without interfering with the inner bottom surface and the inner side surface of the corresponding box 91;

[0033] like Figure 1 , Figure 3As shown, a second motor 95 is horizontally arranged on an outer side surface of each box body 91 relative to the position of the slave bevel gear 94, and the output end of each second motor 95 vertically extends to the inside of the corresponding box body 91 in the direction of the slave bevel gear 94, and is respectively meshed and connected with the corresponding slave bevel gear 94 through the main bevel gear 93, thereby driving the corresponding threaded rod 92 to rotate; a sleeve 96 matching the circular hole is coaxially sleeved on the upper end of each threaded rod 92, and each sleeve 96 is screwed with the corresponding threaded rod 92, and its upper end is respectively extended vertically upward through the circular hole to the upper surface of the corresponding box body 91, and is respectively screwed and fixed at four right angles to the lower surface of the first U-shaped frame 8. Under the drive of the second motor 95, the utility model drives the first U-shaped frame 8 to move vertically up and down through the meshing cooperation of the main bevel gear 93 and the slave bevel gear 94.

[0034] like Figure 1 , Figure 3 As shown, slide rails 98 are vertically symmetrically arranged on the left and right sides of each sleeve 96 relative to the inside of the corresponding box 91, and each slide rail 98 is fixedly connected to the inner side surface of the corresponding box 91; slide rods 97 are horizontally arranged between the left and right outer side surfaces of each sleeve 96 and the corresponding slide rails 98, and one end of each slide rod 97 is fixedly connected to the corresponding outer side surface of the corresponding sleeve 96, and the other end thereof is matched with the corresponding slide rail 98, thereby ensuring the stability of the vertical up and down movement of the sleeve 96 through the coordinated use of the slide rod 97 and the slide rail 98.

[0035] The working principle of the utility model is as follows: firstly, the cotton yarn strips are placed longitudinally on the anti-skid stripes of the corresponding longitudinal rows of the fourth roller 7, the third roller 6, the second roller 5 and the first roller 4, and then, driven by the electric push rod 19, the rubber roller 22 moves vertically downward with the third U-shaped frame 20, and cooperates with the anti-skid stripes to clamp the cotton yarn strips; then, the cleaning velvet belt 12 on the second rotating drum 25 is respectively contacted with the corresponding rubber roller 22, and the cleaning velvet belt 12 on the first rotating drum 11 is respectively contacted with the corresponding anti-skid stripes, and the four first motors 13 can be controlled respectively to make the rotation speeds of the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7 different, and then the cotton yarn strips are stretched by utilizing the rotation speed difference, and in this process, the anti-skid stripes on the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7, and the corresponding rubber roller 22 are cleaned respectively by the cleaning velvet belt 12.

[0036] Beneficial effects of the utility model:

[0037] (1) The utility model facilitates the cleaning of the corresponding first roller 4, second roller 5, third roller 6 and fourth roller 7 by using the first fixed rod 10, the first rotating drum 11 and the cleaning velvet belt 12, thereby avoiding the occurrence of short lint and dust adhesion, and improving the quality of the roving product;

[0038] (2) The utility model provides a lifting assembly 9, so that the cleaning velvet belt 12 on the first drum 11 can be separated from the first roller 4, the second roller 5, the third roller 6 and the fourth roller 7, so that the corresponding cleaning velvet belt 12 can be replaced, which saves time and effort and ensures the cleaning effect;

[0039] (3) The connecting rod 23 of the utility model can be moved up and down through the waist-shaped hole and then fixed by bolts, and the second fixing rod 24 is fixedly connected to the corresponding connecting rod 23 by screw connection, so that it is convenient to replace the corresponding cleaning velvet belt 12 after the cleaning velvet belt 12 on the second rotating drum 25 is separated from the corresponding rubber roller 22, which saves time and effort and ensures the cleaning effect.

[0040] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. A four-roller drafting device for a roving frame, characterized in that: The invention comprises a bottom plate, a vertical plate, a first roller, a second roller, a third roller, a fourth roller and a driving assembly; vertical vertical plates are symmetrically arranged at intervals on the upper surface of the horizontally arranged bottom plate, and a second U-shaped frame is horizontally and longitudinally arranged between the upper end surfaces of the two vertical plates, so as to be spliced ​​into a hollow rectangular structure with open front and back; a first roller, a second roller, a third roller and a fourth roller are arranged in sequence from front to back at an intermediate position between the two vertical plates, the first roller, the second roller, the third roller and the fourth roller are all arranged horizontally and transversely aligned, and flanges are coaxially screwed at both ends thereof A first rotating shaft is connected, and the other end of each of the first rotating shafts vertically extends out from the corresponding vertical plate, and is rotatably connected to the corresponding vertical plate through bearings; a driving assembly is also provided at the left end of each of the first rotating shafts on the left side, and the corresponding first roller, second roller, third roller and fourth roller are driven to rotate by the driving assembly, and a clamping assembly is also aligned directly above the first roller, second roller, third roller and fourth roller, respectively, and then the first roller, second roller, third roller and fourth roller are respectively matched with the corresponding clamping assembly, and the speed difference is used to stretch the cotton yarn strips.

2. A four-roller drafting device for a roving frame according to claim 1, characterized in that: The first roller, the second roller, the third roller and the fourth roller have the same structure, and are all composed of a plurality of anti-slip stripes which are fixedly sleeved coaxially and spaced in sequence along the length direction of the roller shaft.

3. A four-roller drafting device for a roving frame according to claim 1, characterized in that: Each of the driving components comprises a first motor, a motor fixing seat, a main gear and a slave gear; on each of the first rotating shafts on the left side, a corresponding vertical plate portion extending from its left end is also coaxially sleeved and fixed with a slave gear, and each of the slave gears is arranged without interfering with the corresponding vertical plate; a gate-shaped motor fixing seat is also arranged on the left side surface of the vertical plate on the left side relative to each slave gear, and an opening groove of each motor fixing seat is opened in the vertical up and down direction, and its open end is respectively vertically fixedly connected to the corresponding position of the left side surface of the corresponding vertical plate, and is respectively arranged without interfering with the corresponding slave gear; at the middle position of the outer bottom surface of each motor fixing seat A first motor is also horizontally arranged in the device, and the output end of each of the first motors extends horizontally and vertically to the inside of the corresponding motor fixing seat, and is respectively meshed and connected with the corresponding slave gear through the main gear; each of the motor fixing seats does not interfere with the rotation of the corresponding main gear, and under the drive of the first motor, the corresponding first roller, second roller, third roller and fourth roller are respectively driven to rotate around their own axes through the meshing cooperation of the main gear and the corresponding slave gear, and the four first motors are respectively controlled to make the rotation speeds of the first roller, the second roller, the third roller and the fourth roller different, and then the speed difference is used to stretch the cotton yarn strips.

4. A four-roller drafting device for a roving frame according to claim 3, characterized in that: On the left side surface of the vertical plate on the left side, relative to each first motor position, a hollow rectangular cover shell is respectively provided to cover the right side surface of each cover shell, and the right side surface of each cover shell is open, and is vertically fixedly connected to the corresponding position on the left side surface of the vertical plate, and the corresponding first motor, motor fixing seat, main gear and slave gear are respectively covered therein, thereby protecting the corresponding drive components respectively and ensuring that there is no interference with the driving action of the corresponding drive components.

5. A four-roller drafting device for a roving frame according to claim 2, characterized in that: A third U-shaped frame is horizontally arranged between the two vertical plates relative to directly above the first roller, and the third U-shaped frame is spaced inside the second U-shaped frame, the opening groove of the third U-shaped frame is arranged along the horizontal longitudinal direction, and its open end is arranged downward, and covers the first roller, the second roller, the third roller and the fourth roller therein; electric push rods are vertically symmetrically arranged at four right angles on the upper surface of the second U-shaped frame relative to the upper surface of the third U-shaped frame, the fixed end of each electric push rod is screwed and fixed to the corresponding position of the upper surface of the second U-shaped frame, and the pushing ends thereof extend vertically downward to the inside of the second U-shaped frame, and are screwed and fixed to the corresponding position of the upper surface of the third U-shaped frame, thereby driving the third U-shaped frame to make vertical up and down reciprocating motion in the area directly above the first roller, the second roller, the third roller and the fourth roller.

6. A four-roller drafting device for a roving frame according to claim 5, characterized in that: Each of the clamping components includes a second rotating shaft and a rubber roller; four second rotating shafts are arranged in sequence from front to back at the inner side of the third U-shaped frame near its open end, each of the second rotating shafts is arranged horizontally and transversely, and its two ends are rotatably connected to the corresponding inner side surfaces of the third U-shaped frame through bearings, and ensure that the four second rotating shafts are respectively arranged directly above the corresponding first roller, second roller, third roller and fourth roller; four rubber rollers are also arranged on each of the second rotating shafts in sequence along its length direction, and each of the rubber rollers matches the anti-slip stripes on the first roller, second roller, third roller and fourth roller. , and its setting positions respectively correspond to the setting positions of the anti-slip stripes on the first roller, the second roller, the third roller and the fourth roller, so that the corresponding cotton yarn strips are clamped respectively through the cooperation of the rubber roller and the corresponding anti-slip strips, and the corresponding cotton yarn strips are driven to be transmitted longitudinally through rotation, and then the drafting operation is performed through the speed difference; the horizontal plane where the bottom end of each rubber roller is located is arranged below the horizontal plane where the opening end of the third U-shaped frame is located, so as to ensure that when the cotton yarn strips are clamped by the cooperation of the rubber roller and the corresponding anti-slip strips, the third U-shaped frame does not interfere with the rotation of the first roller, the second roller, the third roller and the fourth roller.

7. A four-roller drafting device for a roving frame according to claim 6, characterized in that: A second fixing rod is horizontally and laterally aligned inside the third U-shaped frame relative to the top of each second rotating shaft, and four second rotating drums matching the rubber rollers are sequentially spaced and coaxially sleeved on each second fixing rod along its length direction, and the setting position of each second rotating drum corresponds to the setting position of the corresponding rubber roller, and they are respectively connected to the corresponding second fixing rod for rotation around their own axes, and it is ensured that they do not move left and right on the corresponding second fixing rod; connecting rods are respectively coaxially screwed through flanges at both ends of each second fixing rod, and the other end of each connecting rod vertically extends out of the third U-shaped frame. Corresponding to the outer side surfaces, the corresponding connecting rods are screwed and fixed to the corresponding outer side surfaces of the third U-shaped frame by means of pressure plates; waist-shaped holes matching the connecting rods are vertically embedded and penetrated in the vertical up and down directions on the two outer side surfaces of the third U-shaped frame relative to each connecting rod position, and then the vertical up and down position of the second fixing rod is adjusted by the cooperation of the connecting rod and the corresponding waist-shaped hole, and after ensuring that the second rotating drum is in contact with the corresponding rubber pad, the connecting rod is screwed and fixed to the third U-shaped frame by means of a pressure plate; a cleaning velvet belt matching the rubber roller is also provided in an annular sleeve on every four second rotating drums arranged along the longitudinal direction, and then the corresponding rubber roller is cleaned by the cleaning velvet belt.

8. A four-roller drafting device for a roving frame according to claim 2, characterized in that: The lifting device also includes a first U-shaped frame, a first fixing rod, a first rotating drum and a lifting assembly; a first U-shaped frame is horizontally arranged between the two vertical plates relative to directly below the first roller, and the first U-shaped frame is spaced apart and arranged directly above the bottom plate, the opening groove of the first U-shaped frame is arranged along the horizontal longitudinal direction, and its open end is arranged upward, and covers the first roller, the second roller, the third roller and the fourth roller therein; lifting assemblies are vertically symmetrically arranged at four right angles on the upper surface of the bottom plate relative to the lower surface of the first U-shaped frame, and the lifting ends of each lifting assembly are vertically arranged upward, and are respectively screwed and fixed to the corresponding positions of the lower surface of the first U-shaped frame, thereby driving the first U-shaped frame to perform vertical up and down reciprocating motion in the area directly below the first roller, the second roller, the third roller and the fourth roller; four first fixing rods are also spaced apart in sequence from front to back inside the first U-shaped frame near its open end, each of the first fixing rods is horizontally arranged horizontally, and its two ends are respectively screwed and connected to the corresponding inner side surfaces of the first U-shaped frame, and ensure Ensure that the four first fixed rods are respectively arranged directly below the corresponding first roller, second roller, third roller and fourth roller; on each of the first fixed rods, four first rotating drums matching the anti-slip stripes are coaxially sleeved in sequence and at intervals along its length direction, and the setting position of each first rotating drum corresponds to the setting position of the corresponding anti-slip stripes on the first roller, second roller, third roller and fourth roller, and they are respectively connected to the corresponding first fixed rod for rotation around their own axes, and ensure that they do not move left and right on the corresponding first fixed rod, and then ensure that the first rotating drum contacts the corresponding anti-slip stripes on the first roller, second roller, third roller and fourth roller through the lifting assembly, and ensure that the first U-shaped frame does not interfere with the rotation of the first roller, second roller, third roller and fourth roller; on each of the four first rotating drums arranged along the longitudinal direction, a cleaning velvet belt matching the anti-slip stripes is also annularly sleeved, and then the corresponding anti-slip stripes are cleaned by the cleaning velvet belt.

9. A four-roller drafting device for a roving frame according to claim 8, characterized in that: Each of the lifting components comprises a box, a threaded rod, a main bevel gear, a slave bevel gear, a second motor and a sleeve; a box is vertically symmetrically arranged at four right-angled positions on the upper surface of the base plate relative to the lower surface of the first U-shaped frame, each of the boxes is a hollow rectangular structure, and its lower surface is vertically fixedly connected to the corresponding positions of the upper surface of the base plate, and a circular hole is embedded in the middle position of its upper surface, and each of the circular holes is connected to the interior of the corresponding box; a threaded rod is vertically and coaxially arranged in the middle position of the interior of each of the boxes, and the diameter of each of the threaded rods is smaller than the diameter of the corresponding circular hole, the lower end of each of the threaded rods is rotatably connected to the inner bottom surface of the corresponding box, and the upper ends thereof extend vertically upward through the circular holes to the upper surface of the corresponding box, and are respectively arranged without interfering with the upper surface of the corresponding box; on each of the threaded rods, a position at its lower end relative to the box A slave bevel gear is also coaxially sleeved and fixed inside, and each of the slave bevel gears is arranged with the inner bottom surface and the inner side surface of the corresponding box body without interfering with each other; a second motor is also horizontally arranged on an outer side surface of each box body relative to the position of the slave bevel gear, and the output end of each of the second motors extends vertically to the inside of the corresponding box body in the direction of the slave bevel gear, and is respectively meshed and connected with the corresponding slave bevel gear through the main bevel gear, thereby driving the corresponding threaded rod to rotate; a sleeve matching the circular hole is also coaxially sleeved at the upper end of each threaded rod, and each sleeve is screwed with the corresponding threaded rod, and its upper end extends vertically upward through the circular hole to the upper surface of the corresponding box body, and is respectively screwed and fixed at four right angles to the lower surface of the first U-shaped frame, and then, driven by the second motor, the first U-shaped frame is driven to move vertically up and down through the meshing cooperation of the main bevel gear and the slave bevel gear.

10. A four-roller drafting device for a roving frame according to claim 9, characterized in that: They also include sliding rods and sliding rails; sliding rails are vertically symmetrically arranged on the left and right sides of each sleeve relative to the inside of the corresponding box, and each of the sliding rails is fixedly connected to the inner side of the corresponding box; sliding rods are horizontally arranged between the left and right outer sides of each sleeve and the corresponding sliding rails, one end of each sliding rod is fixedly connected to the corresponding outer side of the corresponding sleeve, and the other end thereof is matched with the corresponding sliding rail, thereby ensuring the stability of the vertical up and down movement of the sleeve through the coordinated use of the sliding rod and the sliding rail.

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