Traverse shifting device for drafting shaft of roving frame

Abstract

The utility model relates to a roving frame drafting shaft transverse moving device which comprises a support fixed on a roving frame plate, a swing frame arranged on the rear side of the support, a drafting shaft arranged at the upper end of the swing frame and an eccentric shaft arranged at the upper end of the swing frame, and the eccentric shaft comprises a rotary portion and an eccentric portion which are of an integrated structure. The eccentric part is inserted into the upper end of the swing frame, a worm in meshing transmission with the worm gear is arranged below the worm gear, a ratchet wheel is installed on the worm, and a pawl for pushing the ratchet wheel to rotate and synchronously achieving rotation of the worm is arranged on the periphery of the ratchet wheel in a matched mode. The bottom of the ratchet wheel is provided with a locking plate clamped into outer teeth of the ratchet wheel. The ratchet wheel is pushed to rotate through the pawl, the worm is meshed with the worm gear to enable the eccentric shaft to rotate, the swing frame is pushed to swing left and right, continuous left-right transverse movement of the drafting shaft is achieved, the structure is simple, and the transverse movement distance of the drafting shaft can be accurately controlled through cooperation between transmission parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to textile machinery technical field especially a roving frame drafting shaft transverse moving device. BACKGROUND

[0002] The roving frame is the spinning machine that makes fibre strip into roving, and its main function is drafting and twisting, and it winds the roving into certain package to meet the requirement of spinning frame processing. In the roving frame structure, the main function of the drafting mechanism is to draw and thin the cotton strip several times, and through the back and forth transverse moving of the drafting shaft, the drawing and thinning of the cotton strip is completed.

[0003] In the existing roving frame structure, the transverse moving of the drafting shaft has many driving modes, such as motor driving or electromechanical combined driving, and these driving modes have some complex structures, some supports and high operation cost, and there is certain difference in the accuracy control of the transverse moving distance of the drafting shaft. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that: in order to overcome the insufficient of prior art, the utility model provides a roving frame drafting shaft transverse moving device which is simple in structure and ensures the accuracy of the transverse moving distance of the drafting shaft.

[0005] The utility model adopts the technical scheme that: a roving frame drafting shaft transverse moving device, including the support that is fixed on the frame plate of roving frame, the swing frame is established at the rear side of support, swing frame lower extreme is rotatively connected with support, the drafting shaft is established on swing frame upper end, the eccentric shaft is established on the upper end of support, the eccentric shaft includes the rotary part and eccentric part of integral structure, the rotary part rotatively installs on the upper end of support, installs the worm wheel on the front end of rotary part, the eccentric part inserts into swing frame upper end, the worm wheel below is equipped with the worm that is engaged transmission with worm wheel, installs the ratchet wheel on the worm, the ratchet wheel is equipped with the pawl that realizes the rotation of worm synchronously through the rotation of ratchet wheel, the pawl bottom is equipped with the locking plate that is inserted into the outer gear of ratchet wheel.

[0006] The frame plate front side is equipped with the top rod that moves up and down through the upper dragon tendon, the top rod upper end is equipped with the pin shaft, one end of pin shaft is movably connected with the top rod upper end, the other end of pin shaft is fixed with the swing bar, the swing bar one end gap is sleeved on the wheel hub protrusion of ratchet wheel right end, the pawl is fixed on the pin shaft between the top rod and swing bar.

[0007] The pawl is crescent, and the inner concave surface of the pawl faces the ratchet wheel.

[0008] The rack plate front side is fixed with a guide plate, the top rod is connected with the pin shaft through the through hole on the guide plate, the compression spring which drives the top rod to move downward to reset the pawl is sleeved on the top rod, the upper end of the compression spring is connected with the bottom surface of the guide plate, and the top rod below the compression spring has a hexagonal boss.

[0009] The swing frame upper end is provided with a vertical waist-shaped hole, and the eccentric part of the eccentric shaft extends into the waist-shaped hole.

[0010] The swing frame upper end has a U-shaped frame, U-shaped grooves are formed in the front and rear sides of the U-shaped frame respectively, a shaft sleeve is arranged in the U-shaped frame, the drawing shaft passes through the shaft sleeve and is fixed with the shaft sleeve, clamping columns are arranged on the front and rear side walls of the shaft sleeve respectively, and the clamping columns are clamped in the U-shaped grooves.

[0011] The utility model discloses the beneficial effect is: the utility model discloses through the pawl drive ratchet wheel rotation, the worm engages the worm wheel and makes eccentric shaft rotation, promotes swing frame to swing left and right, and then realizes the drawing shaft continuous and unceasing left and right horizontal movement, simple structure, and can be through the transmission between cooperation accurate control drawing shaft horizontal displacement. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further explained in connection with the drawings and implementation.

[0013] Fig. 1 It is the front left side three -dimensional structure schematic diagram of the utility model.

[0014] Fig. 2 It is the front right side three -dimensional structure schematic diagram of the utility model.

[0015] Fig. 3 It is the rear side view three -dimensional structure schematic diagram of the utility model.

[0016] Fig. 4 It is the section structure schematic diagram of the utility model.

[0017] In the drawing: 1. rack plate, 2. support, 3. swing frame, 3-1. waist-shaped hole, 3-2. U-shaped frame, 3-3. U-shaped groove, 4. drawing shaft, 5. eccentric shaft, 5-1. rotation part, 5-2. eccentric part, 6. worm wheel, 7. worm, 8. ratchet wheel, 9. pawl, 10. locking plate, 11. top rod, 11-1. hexagonal boss, 12. pin shaft, 13. swing lever, 14. guide plate, 15. compression spring, 16. shaft sleeve, 17. clamping column. DETAILED DESCRIPTION

[0018] Now the utility model will be further explained in connection with the drawings. These drawings are all simplified schematic diagrams, just with the schematic way to show the basic structure of the utility model, so it just shows the structure related to the utility model.

[0019] As shown in Figs. 1-4 A roving frame drafting shaft transverse moving device, comprising a support 2 fixed on a frame plate 1 of the roving frame, a swing frame 3 arranged at the back side of the support 2 and connected with the support 2 through a rotating shaft at the lower end, a U-shaped frame 3-2 fixed on the upper end of the swing frame 3, U-shaped grooves 3-3 are respectively arranged on the front and back sides of the U-shaped frame 3-2, a shaft sleeve 16 is arranged in the U-shaped frame 3-2, a drafting shaft 4 passes through the shaft sleeve 16 and is fixed with the shaft sleeve 16, clamping columns 17 are respectively arranged on the front and back side walls of the shaft sleeve 16, and the clamping columns 17 are clamped in the U-shaped grooves 3-3.

[0020] A vertical waist-shaped hole 3-1 is arranged on the panel of the swing frame 3 below the U-shaped frame 3-2, an eccentric shaft 5 with the axis in the front and back directions is arranged on the upper end of the support 2, the eccentric shaft 5 comprises a rotating part 5-1 and an eccentric part 5-2 in an integral structure, the rotating part 5-1 is rotatably installed on the upper end of the support 2, and the eccentric part 5-2 is inserted into the waist-shaped hole 3-1 of the swing frame 3,

[0021] A driving assembly is arranged on the right side of the support 2 to drive the eccentric shaft 5 to rotate and realize the transverse moving of the drafting shaft 4.

[0022] Specifically, the driving assembly comprises a worm gear 6, a worm 7, a ratchet wheel 8, a ratchet pawl 9, a locking plate 10 and a top rod 11, the worm gear 6 is installed at the front end of the rotating part 5-1, the worm 7 is arranged below the worm gear 6, the left end of the worm 7 is engaged with the worm gear 6 for transmission, the ratchet wheel 8 is fixed in the middle part of the worm 7, the top rod 11 with a rotating sleeve fixed on the upper end is arranged at the front side of the frame plate 1, a pin shaft 12 is arranged on the upper end of the top rod 11, the left end of the pin shaft 12 is movably connected with the rotating sleeve on the upper end of the top rod 11, a swing rod 13 is fixed on the right end of the pin shaft 12, the swing rod 13 is gap-sleeved on the wheel hub protrusion on the right end of the ratchet wheel 8 and is blocked by the baffle with a nut, the ratchet pawl 9 is fixed on the pin shaft 12 between the rotating sleeve of the top rod 11 and the left side surface of the swing rod 13, the ratchet pawl 9 is in the shape of a crescent, the inner concave surface of the ratchet pawl 9 faces the ratchet wheel 8, the upper end of the ratchet pawl 9 is clamped into the outer teeth of the ratchet wheel 8 to drive the ratchet wheel 8 to rotate, the locking plate 10 clamped into the outer teeth of the ratchet wheel 8 is fixed on the front side of the support 2 below the ratchet wheel 8 to prevent the ratchet wheel 8 from rotating reversely.

[0023] A guide plate 14 is fixed on the front side of the frame plate 1, the top rod 11 passes through the through hole of the guide plate 14 and is movably connected with the pin shaft 12, a compression spring 15 is sleeved on the top rod 11 to drive the top rod 11 to move downward and reset the ratchet pawl 9, the upper end of the compression spring 15 is connected with the bottom surface of the guide plate 14, and a hexagonal boss 11-1 is arranged on the top rod 11 below the compression spring 15.

[0024] When the transverse moving device is used, the top rod 11 is moved up and down by the upper cross bar of the roving machine, when the upper cross bar drives the top rod 11 to move up, the pawl 9 is moved up, and then the pawl 9 drives the ratchet wheel 8 to rotate clockwise (observed from the right side), when the pawl 9 drives the worm 7 to rotate, the worm 8 is engaged to rotate, after the eccentric part 5-2 of the eccentric shaft 5 moves through the upper semicircular hole of the waist-shaped hole 3-1, the swing frame 3 with the drafting shaft 4 is driven to move left; when the upper cross bar is lowered, the compression spring 15 drives the top rod 11 to move down; when the upper cross bar drives the top rod 11 to move up again, the pawl 9 drives the ratchet wheel 8 to rotate clockwise again, so that after the eccentric part 5-2 of the eccentric shaft 5 moves through the lower semicircular hole of the waist-shaped hole 3-1, the swing frame 3 with the drafting shaft 4 is driven to move right, so that the continuous left and right transverse movement of the drafting shaft 4 is realized, and in the process, the locking plate 10 is always clamped into the outer teeth of the ratchet wheel 8 to prevent the ratchet wheel 8 from rotating reversely.

[0025] With the above ideal embodiments of the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. A traversing device of draft shaft of a roving frame, comprising a support (2) fixed on a frame plate (1) of the roving frame, a swing frame (3) being arranged at the back side of the support (2), the lower end of the swing frame (3) being rotatably connected with the support (2), and a draft shaft (4) being arranged at the upper end of the swing frame (3), characterized in that: The support (2) upper end is provided with eccentric shaft (5), the eccentric shaft (5) includes integral structure's rotation part (5-1) and eccentric part (5-2), the rotation part (5-1) is rotatably installed on the support (2) upper end, the rotation part (5-1) front end is installed with worm wheel (6), the eccentric part (5-2) is inserted into the swing frame (3) upper end, the worm wheel (6) lower side is provided with the worm (7) that is engaged with the worm wheel (6) transmission, the worm (7) is installed with ratchet wheel (8), the ratchet wheel (8) outer periphery is equipped with pawl (9), the pawl (9) is driven to rotate the ratchet wheel (8) and synchronously realizes the rotation of the worm (7), the ratchet wheel (8) bottom is provided with locking plate (10) that is inserted into the outer gear of the ratchet wheel (8). ​ 2. A traverse device for a drafting shaft of a roving frame according to claim 1, characterized in that: The front side of the rack plate (1) is provided with a top rod (11) that moves up and down by the upper dragon muscle, the top rod (11) upper end is provided with a pin shaft (12), one end of the pin shaft (12) is movably connected with the top rod (11) upper end, the other end of the pin shaft (12) is fixed with a swing lever (13), one end of the swing lever (13) is gaply sleeved on the wheel hub protrusion of the right end of the ratchet wheel (8), the pawl (9) is fixed on the pin shaft (12) between the top rod (11) and the swing lever (13).

3. A traverse device for a drafting shaft of a roving frame according to claim 2, characterized in that: The pawl (9) is crescent-shaped, and the inner concave surface of the pawl (9) faces the ratchet wheel (8).

4. The traverse device for the drafting shaft of a roving frame according to claim 2, characterized in that: The front side of the rack plate (1) is fixed with a guide plate (14), the top rod (11) is connected with the pin shaft (12) through the through hole on the guide plate (14), the top rod (11) is sleeved with a compression spring (15) that drives the top rod (11) to move down and resets the pawl (9), the upper end of the compression spring (15) is connected with the bottom surface of the guide plate (14), the top rod (11) below the compression spring (15) has a hexagonal boss (11-1).

5. The roving frame drafting shaft traversing device according to claim 1, characterized in that: The upper end of the swing frame (3) is provided with a vertical waist-shaped hole (3-1), and the eccentric part (5-2) of the eccentric shaft (5) extends into the waist-shaped hole (3-1).

6. The roving frame drafting shaft traversing device according to claim 1, characterized in that: The upper end of the swing frame (3) has a U-shaped frame (3-2), U-shaped grooves (3-3) are respectively formed on the front and rear sides of the U-shaped frame (3-2), and an axle sleeve (16) is arranged in the U-shaped frame (3-2). The draft shaft (4) passes through the axle sleeve (16) and is fixed with the axle sleeve (16), clamping columns (17) are respectively arranged on the front and rear side walls of the axle sleeve (16), and the clamping columns (17) are clamped in the U-shaped grooves (3-3).

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