A top comb clamping device for a flax combing machine

Abstract

The invention relates to the technical field of spinning preparation devices, and specifically to a top comb clamping device for a flax combing machine, comprising an active pressure roller for rotating transmission, a passive pressure roller distributed and following on one side of the active pressure roller, a cotton belt clamped between the active pressure roller and the passive pressure roller, a frame supporting the active pressure roller, and a spring mechanism for applying pressure at both ends of the passive pressure roller. The spring mechanism and the frame cooperate to clamp the end of the passive pressure roller. A precision device is arranged on one side of the frame to remove dust and make the disordered cotton belt fluffy. Before the cotton belt is transported through the clamping section of the active pressure roller and the passive pressure roller, a knife box sinks into the cotton belt, and the knife box sucks air to suck away dust in the cotton belt. In addition, the suction force of the knife box corresponds to the vibration frequency of a subsequent flat rod. The local density of the cotton belt is large, and it is difficult for the knife box to suck air. The subsequent flat rod will increase the frequency to impact the dense part of the cotton belt to make the cotton belt fully fluffy.

Description

Technical Field

[0001] The invention relates to the technical field of spinning preparation devices, in particular to a top comb clamping device for a flax combing machine. Background Art

[0002] The existing flax processing technology involves multiple processes for processing old flax, in which old flax strips are gathered on a conveyor belt to form a chaotic cotton strip, and then the cotton strip is conveyed through two pressing rollers, the chaotic cotton strip is pressed into a regular plate-shaped cotton strip, and then the plate-shaped cotton strip is combed. Before the cotton strip clamping process, the spliced ​​cotton strip can be subjected to continuous impact treatment, so that the cotton strip becomes fluffy before being conveyed through the pressing roller, and the splicing of the cotton strips in the cotton strip is more fully combined. The fluffy cotton strip is clamped by two pressing rollers, and the resulting plate-shaped cotton strip has a more uniform texture, which is helpful for the subsequent cotton strip combing process. In addition, the dust in the old cotton strip needs to be removed. For this purpose, the present invention provides a top comb clamping device for a flax combing machine. Summary of the invention

[0003] The object of the present invention is to provide a top comb clamping device for a flax combing machine to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a top comb clamping device for a flax combing machine, comprising an active pressure roller for rotating transmission, a passive pressure roller distributed and following on one side of the active pressure roller, a cotton belt clamped between the active pressure roller and the passive pressure roller, a frame supporting the active pressure roller, and a spring mechanism for applying pressure at both ends of the passive pressure roller, the spring mechanism and the frame cooperate to clamp the end of the passive pressure roller, one side of the frame is provided with a precision device to remove dust and make the disordered cotton belt fluffy, and then the disordered cotton belt is transported through between the active pressure roller and the passive pressure roller to be pressed into a plate-shaped cotton belt, the precision device comprises an integrated main pipe for conveying dust airflow, a row of device units connected to one side of the integrated main pipe, and an integrated main shaft that establishes transmission with the row of device units.

[0005] The device unit includes an adsorption wheel that is immersed in the cotton belt to remove dust and absorb air, a brake group that establishes transmission between the adsorption wheel and the integrated main shaft, an air circuit group that is connected between the adsorption wheel and the integrated main shaft, an adjustment group connected to one side of the air circuit group, a transfer group that is transmission-connected between one end of the adjustment group and the integrated main shaft, and a vibration rod group that drives the other end of the adjustment group to vibrate and impact the cotton belt.

[0006] The adsorption wheel includes a roulette box with an opening on the bottom of one side, and a plurality of knife boxes evenly arranged outside the roulette box, one end of the knife box is a half-disc shell, and the outer edge of the half-disc shell is pointed, the other end of the knife box is fixedly connected to the roulette box, and suction holes are provided on both sides of the half-disc shell of the knife box.

[0007] The brake group includes a central control shaft with one end fixed in the middle of the wheel box, a buffer spring with an external fixed sleeve of the central control shaft, a limiting disk shell with an external fixed sleeve of the buffer spring, an external gear ring with an external fixed sleeve of the limiting disk shell, and a worm gear meshingly connected to the external gear ring.

[0008] The brake group also includes a back frame, one end of which is fixed on the integrated main pipe, and the worm and the central control shaft are respectively movably connected in two through holes opened on the back frame, and the limit disk shell includes a ring plate movably connected on the central control shaft and a ring cylinder fixed on the outer edge of the ring plate, and one end of the worm is meshed and connected with the annular bevel gear fixed on the integrated main shaft through a fixed bevel gear.

[0009] The air circuit group includes an inner disk box that is movably filled inside the roulette box, an L-shaped support tube with one end fixedly connected to the middle of the inner disk box, a piston column slidably inserted into the other end of the L-shaped support tube, a compression spring sleeved on the piston column, and an L-shaped flat tube fixedly connected to one side of the L-shaped support tube, and one end of the L-shaped flat tube is fixedly connected to the integrated main pipe.

[0010] The inner disk box is shaped like a disk box, and an arc-shaped plate hole is provided on the side wall at one end of the disk box. The gas circuit group also includes a one-way valve arranged in the L-shaped support tube for one-way gas conduction, and the one-way valve is also provided with a fine plate hole for slow reflux. The one-way valve is distributed between the piston column and the port of the L-shaped flat tube.

[0011] The adjustment group includes a T-control plate fixedly connected to the piston column, a supporting shaft supported on the T-control plate, a prismatic shaft coaxially fixed at one end of the supporting shaft, a barrel shaft inserted at one end of the prismatic shaft, a cam fixedly sleeved on the barrel shaft, and a rubber wheel fixed at the other end of the supporting shaft. The compression spring is supported between the L-shaped support tube and the T-control plate, and the prismatic shaft is slidably arranged in a prismatic hole opened at the axis center of the barrel shaft.

[0012] The transfer group includes a restraining frame with one end fixed on the integrated main pipe, a short shaft supported on the restraining frame, a main plate with one end of the short shaft vertically fixed, a plurality of direction rods evenly arranged on the main plate, a unit spring sleeved on the direction rods, and a tail plate fixedly connected to all the direction rods, the direction rods slide through the through holes opened on the main plate, the unit spring is supported between the main plate and the tail plate, the short shaft and the integrated main shaft are respectively movably sleeved in different through holes opened on the restraining frame, and the tail plate is in vertical contact with the rubber wheel.

[0013] The vibration rod group includes a flat rod with a vibrating impact cotton belt, a directional slide fixed vertically to the flat rod, a directional frame supporting the directional slide, and an external spring piece fixed on the directional frame. One end of the external spring piece pushes the vertical short plate set on the directional slide, and the directional slide slides through the plate hole opened on the directional frame. One end of the directional frame is fixed on the inner disk box, and the cam moves the flat frame set on the flat rod by rotating.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Before the cotton belt is transported through the clamping area of ​​the active pressure roller and the passive pressure roller, the knife box sinks into the cotton belt and sucks air to remove the dust in the cotton belt. In addition, the suction force of the knife box corresponds to the vibration frequency of the subsequent flat rod. The local density of the cotton belt is large and it is difficult for the knife box to suck air. The subsequent flat rod will increase the frequency to impact the high-density part of the cotton belt to make the cotton belt fully fluffy.

[0016] 2. The present invention drives and controls a row of device units through an integrated main shaft. The device units absorb air and remove dust from the cotton belt, thereby improving the production process environment and improving the quality of the cotton belt. The device units fluff the cotton belt, which can make the cotton belt have a uniform texture and facilitate the subsequent combing process of the cotton belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the location of the Seiko device.

[0019] Figure 3 This is a schematic diagram of the Seiko device structure.

[0020] Figure 4 Schematic diagram of the device unit structure.

[0021] Figure 5 This is a schematic diagram of the position of the passive pressure roller.

[0022] Figure 6 Schematic diagram of the adsorption wheel structure.

[0023] Figure 7 Schematic diagram of the back frame structure.

[0024] Figure 8 It is a schematic diagram of the gas circuit group structure.

[0025] Fig. 9 Schematic diagram of the one-way valve position.

[0026] Fig.10 This is a schematic diagram of the adjustment group structure.

[0027] Fig.11 This is a schematic diagram of the sub-group structure.

[0028] Fig.12 It is a schematic diagram of the structure of the vibration rod group.

[0029] Fig.13 Schematic diagram of the horizontal rod position.

[0030] In the figure: active pressure roller 1, passive pressure roller 2, cotton belt 3, frame 4, spring mechanism 5, precision device 6, integrated main pipe 7, device unit 8, integrated main shaft 9, adsorption wheel 10, brake group 11, air circuit group 12, adjustment group 13, transfer group 14, vibration rod group 15, knife box 16, wheel box 17, worm 18, back frame 19, outer gear ring 20, limit plate shell 21, central control shaft 22, buffer spring 23, inner plate box 24, L-shaped support pipe 25, one-way valve 26, piston column 27, compression spring 28, L-shaped flat tube 29, cam 30, cylinder shaft 31, prismatic shaft 32, T control plate 33, support shaft 34, rubber wheel 35, restraint frame 36, short shaft 37, main plate 38, unit spring 39, direction rod 40, tail plate 41, flat rod 42, direction frame 43, outer spring piece 44, direction slide plate 45. DETAILED DESCRIPTION

[0031] 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 technical solutions in 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.

[0032] See also Figures 1 to 13 The present invention provides a technical solution: a top comb clamping device for a flax combing machine, comprising an active pressing roller 1 for rotating and conveying, a passive pressing roller 2 distributed and following on one side of the active pressing roller 1, a cotton strip 3 clamped between the active pressing roller 1 and the passive pressing roller 2, a frame 4 supporting the active pressing roller 1, and a spring mechanism 5 for applying pressure at both ends of the passive pressing roller 2, the spring mechanism 5 and the frame 4 cooperate to clamp the end of the passive pressing roller 2, and a precision device 6 is arranged on one side of the frame 4 to remove dust and fluff the disordered cotton strip 3, and then the disordered cotton strip 3 is conveyed through the active pressing roller 1 and the passive pressing roller 2 to be pressed into a plate-shaped cotton strip 3, the precision device 6 comprises an integrated main pipe 7 for dust airflow conveying, a row of device units 8 connected to one side of the integrated main pipe 7, and an integrated main shaft 9 that establishes transmission with the row of device units 8, one end of the integrated main shaft 9 is externally connected to the motor driving mechanism in the prior art, one end of the integrated main pipe 7 is blocked, and the other end is externally connected to the dust airflow processing mechanism in the prior art, and the dust airflow processing mechanism continuously exhausts the integrated main pipe 7.

[0033] refer to Figure 4 It is understood that the device unit 8 includes a suction wheel 10 that is immersed in the cotton belt 3 to remove dust and absorb air, a brake group 11 that establishes transmission between the suction wheel 10 and the integrated main shaft 9, an air circuit group 12 that is connected between the suction wheel 10 and the integrated main pipe 7, an adjustment group 13 connected to one side of the air circuit group 12, a transfer group 14 that is transmission-connected between one end of the adjustment group 13 and the integrated main shaft 9, and a vibration rod group 15 that drives the other end of the adjustment group 13 to vibrate and impact the cotton belt 3.

[0034] refer to Figure 6 It is understood that the adsorption wheel 10 includes a roulette box 17 with an opening on the bottom of one side, and a plurality of knife boxes 16 evenly arranged outside the roulette box 17, one end of the knife box 16 is a half-disc shell, and the outer edge of the half-disc shell is pointed, the other end of the knife box 16 is fixedly connected to the roulette box 17, and suction holes are provided on both sides of the half-disc shell of the knife box 16. The rotation of the roulette box 17 drives the knife box 16 to move around, and the knife box 16 encounters the conveyed cotton belt 3 and will be inserted into the cotton belt 3. In this way, the suction holes on both sides of the knife box 16 absorb the dust in the cotton belt 3. In addition, the local density of the cotton belt 3 affects the suction of the knife box 16. If the local density of the cotton belt 3 is large, it is difficult for the knife box 16 to suck air, and the dust air flow passing through the knife box 16 is slow.

[0035] refer to Figure 6 It is understood that the brake group 11 includes a central control shaft 22 with one end fixed in the middle of the wheel box 17, a buffer spring 23 with an external fixed sleeve of the central control shaft 22, a limit disk shell 21 with an external fixed sleeve of the buffer spring 23, an outer gear ring 20 with an external fixed sleeve of the limit disk shell 21, and a worm 18 meshing and transmission connected with the outer gear ring 20.

[0036] The brake group 11 also includes a back frame 19, one end of the back frame 19 is fixed on the integrated main pipe 7, the worm 18 and the central control shaft 22 are respectively movably connected in two through holes opened on the back frame 19, the limit plate housing 21 includes a ring plate movably connected on the central control shaft 22 and a ring cylinder fixed on the outer edge of the ring plate, and one end of the worm 18 is meshed and connected with the annular bevel gear fixed on the integrated main shaft 9 through a fixed bevel gear.

[0037] refer to Figure 8 It is understood that the air circuit group 12 includes an inner disk box 24 that is movably filled in the roulette box 17, an L-shaped support tube 25 with one end fixedly connected to the middle of the inner disk box 24, a piston column 27 slidably inserted into the other end of the L-shaped support tube 25, a compression spring 28 sleeved on the piston column 27, and an L-shaped flat tube 29 fixedly connected to one side of the L-shaped support tube 25, and one end of the L-shaped flat tube 29 is fixedly connected to the integrated main pipe 7.

[0038] The inner disk box 24 is shaped like a disk box, and an arc-shaped plate hole is provided on the side wall at one end of the disk box. The gas circuit group 12 also includes a one-way valve 26 arranged in the L-shaped support tube 25 for one-way gas conduction, and the one-way valve 26 is also provided with a fine plate hole for slow reflux. The one-way valve 26 is distributed between the piston column 27 and the port of the L-shaped flat tube 29. The function of the one-way valve 26 is to limit the speed at which the piston column 27 is relocated and extended from the L-shaped support tube 25. The piston column 27 can be quickly inserted into the L-shaped support tube 25 under the action of temporary suction, while the reverse movement and resetting process is carried out slowly.

[0039] The arc-shaped plate hole on the inner disc box 24 faces upward, so that the knife box 16 will not be connected to the arc-shaped plate hole on the inner disc box 24 until it moves around to the top of the wheel box 17. That is, after the knife box 16 is immersed in the cotton belt 3, the immersed knife box 16 has the air extraction function to suck away the dust in the cotton belt 3, while the other knife boxes 16 on the wheel box 17 are in a closed state. The dust airflow sucked into the knife box 16 is then sucked into the inner disc box 24, and then sucked into the L-shaped flat tube 29 through the L-shaped support tube 25, and then discharged through the integrated main tube 7.

[0040] The adjustment group 13 includes a T-control plate 33 fixedly connected to the piston column 27, a support shaft 34 supported on the T-control plate 33, a prismatic shaft 32 coaxially fixed at one end of the support shaft 34, a cylinder shaft 31 inserted at one end of the prismatic shaft 32, a cam 30 fixedly sleeved on the cylinder shaft 31, and a rubber wheel 35 fixed at the other end of the support shaft 34. The compression spring 28 is supported between the L-shaped support tube 25 and the T-control plate 33. The prismatic shaft 32 is slidably set in a prismatic hole opened at the axis center of the cylinder shaft 31, and the support shaft 34 is movably sleeved in a through hole opened on the T-control plate 33.

[0041] The transfer group 14 includes a restraining frame 36 with one end fixed on the integrated main pipe 7, a short shaft 37 supported on the restraining frame 36, a main plate 38 with one end of the short shaft 37 vertically fixed, a plurality of direction rods 40 evenly arranged on the main plate 38, a unit spring 39 sleeved on the direction rods 40, and a tail plate 41 fixedly connected to all the direction rods 40, the direction rods 40 slide through the through holes opened in the main plate 38, the unit spring 39 is supported between the main plate 38 and the tail plate 41, the short shaft 37 and the integrated main shaft 9 are respectively movably sleeved in different through holes opened in the restraining frame 36, and the tail plate 41 is in vertical contact with the rubber wheel 35.

[0042] The vibration rod group 15 includes a flat rod 42 for vibrating and impacting the cotton belt 3, a direction slide plate 45 fixed vertically to the flat rod 42, a direction frame 43 supporting the direction slide plate 45, and an external spring piece 44 fixed on the direction frame 43. One end of the external spring piece 44 pushes the vertical short plate set on the direction slide plate 45, and the direction slide plate 45 slides through the plate hole opened on the direction frame 43. One end of the direction frame 43 is fixed on the inner disk box 24, and the cam 30 moves the flat frame set on the flat rod 42 by rotating.

[0043] The integrated main shaft 9 rotates to drive the worm 18, and then drives the buffer spring 23 through the outer ring gear 20, thereby controlling the rotation of the central control shaft 22, and then drives the knife box 16 to move in a circle through the wheel box 17. During the process of the knife box 16 sinking into the cotton belt 3, the buffer spring 23 plays the function of elastic buffering, and the integrated main shaft 9 also drives the short shaft 37, and then the main plate 38 rotates to drive the direction rod 40, and then the tail plate 41 rotates to drive the rubber wheel 35, and then the supporting shaft 34 drives the prismatic shaft 32, and the barrel shaft 31 drives the cam 30 to rotate synchronously, and the cam 30 continuously drives the control flat rod 42, and the flat rod 42 continuously reciprocates to hit the cotton belt 3, realizing vibration impact.

[0044] The vibration impact power source of the flat rod 42 is the rotation of the integrated spindle 9. The impact strength of the flat rod 42 corresponds to the workload of the driving mechanism of the integrated spindle 9. In order to reduce the workload and at the same time meet the impact and fluffy requirements of the cotton belt 3, the present invention also has an automatic adjustment mechanism. The local density of the cotton belt 3 is large, and the knife box 16 has difficulty in inhaling air, which corresponds to the high continuous impact frequency of the subsequent flat rod 42. On the contrary, the cotton belt 3 is locally sparse, and the subsequent flat rod 42 has a low impact frequency on the cotton belt 3 being transported. The specific principle is: the integrated main pipe 7 The displacement force at the position remains unchanged, the suction force of the L-shaped flat tube 29 on the L-shaped support tube 25 remains unchanged, and after the knife box 16 becomes difficult to suck air, the piston column 27 is first affected by the negative pressure, and the piston column 27 is quickly sucked into the L-shaped support tube 25. The movement of the piston column 27 drives the supporting shaft 34, and then the rubber wheel 35 moves axially close to the edge of the tail plate 41. The tail plate 41 rotating at a constant speed drives the rubber wheel 35, and the speed of the rubber wheel 35 increases. The subsequent transmission causes the speed of the cam 30 to increase, and then the impact frequency of the flat rod 42 on the cotton belt 3 increases.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A top comb clamping device for a flax combing machine, comprising an active pressure roller (1) for rotating and conveying, a passive pressure roller (2) distributed and following the active pressure roller (1), a cotton belt (3) clamped between the active pressure roller (1) and the passive pressure roller (2), a frame (4) supporting the active pressure roller (1), and a spring mechanism (5) for applying pressure at both ends of the passive pressure roller (2), the spring mechanism (5) and the frame (4) cooperate to clamp the end of the passive pressure roller (2), characterized in that: The frame (4) has a precision device (6) disposed on one side to remove dust from and make the disordered cotton strip (3) fluffy. The disordered cotton strip (3) is then conveyed through between the active pressing roller (1) and the passive pressing roller (2) to be pressed into a plate-shaped cotton strip (3). The precision device (6) comprises an integrated main pipe (7) for conveying dust airflow, a row of device units (8) connected to one side of the integrated main pipe (7), and an integrated main shaft (9) for establishing transmission with the row of device units (8). The device unit (8) comprises an adsorption wheel (10) for sinking into the cotton strip (3) to remove dust and absorb air, a brake group (11) for establishing transmission between the adsorption wheel (10) and the integrated main shaft (9), and an adsorption wheel (10). An air circuit group (12) connected to the integrated main pipe (7), an adjustment group (13) connected to one side of the air circuit group (12), a drive group (14) connected to one end of the adjustment group (13) and the integrated main shaft (9), and a vibration rod group (15) driven by the other end of the adjustment group (13) for vibrating and impacting the cotton belt (3), the adsorption wheel (10) comprising a wheel disc box (17) with an opening on the bottom surface of one side, and a plurality of knife boxes (16) evenly arranged outside the wheel disc box (17), one end of the knife box (16) is a half-disc shell, and the outer edge of the half-disc shell is pointed, the other end of the knife box (16) is fixedly connected to the wheel disc box (17), and both sides of the half-disc shell of the knife box (16) are The brake assembly (11) includes a central control shaft (22) having one end fixed to the middle of the wheel box (17), a buffer spring (23) with an external fixed sleeve of the central control shaft (22), a limit plate shell (21) with an external fixed sleeve of the buffer spring (23), an outer gear ring (20) of the external fixed sleeve of the limit plate shell (21), and a worm (18) meshingly connected to the outer gear ring (20). The brake assembly (11) also includes a back frame (19), one end of the back frame (19) is fixed to the integrated main pipe (7), the worm (18) and the central control shaft (22) are respectively movably sleeved in two through holes opened on the back frame (19), and the limit plate shell (21) includes The invention comprises a ring plate movably sleeved on the central control shaft (22) and a ring cylinder fixed on the outer edge of the ring plate, one end of the worm (18) is meshed and transmission-connected with the annular bevel gear fixed on the integrated main shaft (9) through a fixed bevel gear, and the gas circuit group (12) comprises an inner disk box (24) movably filled in the wheel box (17), an L-shaped support tube (25) one end of which is fixedly connected to the middle of the inner disk box (24), a piston column (27) slidably inserted into the other end of the L-shaped support tube (25), a compression spring (28) sleeved on the piston column (27), and an L-shaped flat tube (29) fixedly connected to one side of the L-shaped support tube (25), and one end of the L-shaped flat tube (29) is fixedly connected to the integrated main pipe (7).

2. A top comb clamping device for a flax combing machine according to claim 1, characterized in that: The inner disk box (24) is in the shape of a disk box, and a side wall at one end of the disk box is provided with an arc-shaped plate hole. The gas path group (12) also includes a one-way valve (26) arranged in the L-shaped support tube (25) for one-way gas conduction, and the one-way valve (26) is also provided with a fine plate hole for slow reflux. The one-way valve (26) is distributed between the piston rod (27) and the port of the L-shaped flat tube (29).

3. The top comb clamping device for a flax combing machine according to claim 1, characterized in that: The adjustment group (13) comprises a T-control plate (33) fixedly connected to the piston rod (27), a supporting shaft (34) supported on the T-control plate (33), a prism shaft (32) coaxially fixed to one end of the supporting shaft (34), a cylinder shaft (31) plugged into one end of the prism shaft (32), a cam (30) fixedly sleeved on the cylinder shaft (31), and a rubber wheel (35) fixed to the other end of the supporting shaft (34), a compression spring (28) supported between the L-shaped support tube (25) and the T-control plate (33), and the prism shaft (32) is slidably arranged in a prism hole opened at the axis center of the cylinder shaft (31).

4. A top comb clamping device for a flax combing machine according to claim 3, characterized in that: The transfer group (14) comprises a restraining frame (36) having one end fixed on the integrated main pipe (7), a short shaft (37) supported on the restraining frame (36), a main plate (38) to which one end of the short shaft (37) is vertically fixed, a plurality of direction rods (40) evenly arranged around the main plate (38), a unit spring (39) sleeved on the direction rods (40), and a tail plate (41) fixedly connected to all the direction rods (40), the direction rods (40) slidingly passing through through holes opened on the main plate (38), the unit spring (39) supported between the main plate (38) and the tail plate (41), the short shaft (37) and the integrated main shaft (9) respectively movably sleeved in different through holes opened on the restraining frame (36), and the tail plate (41) and the rubber wheel (35) vertically contact each other.

5. The top comb clamping device for a flax combing machine according to claim 3, characterized in that: The vibration rod group (15) comprises a flat rod (42) having a vibrating impact cotton belt (3), a direction slide plate (45) fixed vertically to the flat rod (42), a direction frame (43) supporting the direction slide plate (45), and an outer spring piece (44) fixed to the direction frame (43), one end of the outer spring piece (44) pushes a vertical short plate provided on the direction slide plate (45), the direction slide plate (45) slides through a plate hole provided on the direction frame (43), one end of the direction frame (43) is fixed to the inner disk box (24), and the cam (30) moves the flat frame provided on the flat rod (42) by rotating.

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