Eccentric adjusting mechanism for sliver can seat of drawing frame

Abstract

The invention belongs to the technical field of textile machinery, and discloses a drawing frame sliver can base eccentric adjusting mechanism which comprises an upper shell top plate, the upper shell top plate is fixedly connected with symmetrically-distributed front connecting supports, and the lower ends of the front connecting supports are fixedly connected with a lower shell bottom plate. Symmetrically distributed sliver can mounting plates are mounted on a bottom plate of the lower shell, the sliver can mounting plates are in sliding connection with an adjusting sliding base, a sliver can seat belt wheel assembly is rotationally connected into the adjusting sliding base, symmetrically distributed speed reduction driving assemblies are mounted in the front connecting support, and a sliver can seat belt wheel assembly is rotationally connected into the front connecting support. The lower end of the speed reduction driving assembly is fixedly connected with a sliver can driving belt wheel. Through cooperation of structures such as the speed reduction driving assembly and the tensioning belt wheel assembly, the speed reduction driving assembly drives the sliver can driving belt wheel to rotate, the sliver can seat belt wheel assembly is driven to rotate through the sliver can seat transmission belt, and then the sliver cans of the drawing frame are driven to rotate synchronously.

Description

Technical Field

[0001] The invention belongs to the technical field of textile machinery, in particular to an eccentric adjustment mechanism for a sliver cylinder seat of a drawing frame. Background Art

[0002] In the spinning production process of the carding machine or the drawing machine, the processed slivers are sent out from the coiler and stored in the sliver can arranged below it. In order to make the sliver can store the slivers neatly, orderly and efficiently, a coiler with a smaller rotating diameter and a sliver can with a larger diameter are used in combination, and the rotation center of the coiler and the rotation center of the sliver can are not coincident, but a certain eccentricity is set. When the machine is running, the coiler rotates at a high speed, and the sliver can rotates at a low speed, so that the slivers are evenly stacked in the sliver can along the inner wall of the can in a nearly circular trajectory of the coiler's rotation diameter. In order to store as many slivers as possible and maintain the stability of the cotton column formed by the stacking of the slivers, The eccentric distance between the coiler and the rotation center of the sliver can should be as large as possible to minimize the distance between the outer cylindrical surface of the cotton column and the inner wall of the sliver can. However, if the diameter of the cotton column is too large and the distance from the inner wall of the sliver can is too small, the slivers will rub against the sliver can during stacking, destroying the fiber distribution structure inside the slivers and affecting product quality. In extreme cases, it will also affect the laying trajectory of the slivers, making the laying of the slivers chaotic, and the slivers will rub against each other, cross-link or even knot, which will easily lead to sliver breakage in the subsequent production process and affect production efficiency. Therefore, the eccentric distance between the coiler and the sliver can should be carefully adjusted during installation and commissioning to increase the storage capacity of the sliver can and ensure the quality of the slivers. The current mainstream sliver can base is usually rotated by belt drive, and the belt length is fixed, and the position of the driving pulley used for driving is also immovable. Therefore, when adjusting the eccentric distance of the sliver can, it is necessary to disassemble more parts to adjust the belt tensioning mechanism at the same time to ensure the normal transmission function of the belt, or use a separate motor to drive the sliver can base. The motor and the sliver can base are installed on the same movable base, and the two move together when adjusting the eccentric distance. These structures are either complicated to operate and inconvenient to adjust, or have high costs. Summary of the invention

[0003] In order to solve the problem that the existing sliver can driving device mentioned in the above background technology is fixed and it takes time and effort to adjust the eccentric distance between the sliver can and the coiler, the present invention provides an eccentric adjustment mechanism for the sliver can seat of the drawing frame.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an eccentric adjustment mechanism of a sliver drum seat of a drawing machine, comprising an upper shell top plate, the upper shell top plate is linked to a front connecting bracket, the lower end of the front connecting bracket is fixedly connected to the lower shell bottom plate, the lower shell bottom plate is slidably connected with an adjusting sliding base, a sliver drum seat pulley assembly is rotatably connected in the adjusting sliding base, a reduction drive assembly is installed in the front connecting bracket, a sliver drum drive pulley is installed at the lower end of the reduction drive assembly, a first reversing pulley and a second reversing pulley are rotatably connected on the adjusting sliding base, a tensioning pulley assembly is installed on the lower shell bottom plate, a sliver drum seat drive belt is commonly wound around the outer contours of the first reversing pulley, the second reversing pulley, the sliver drum drive pulley, the tensioning pulley assembly and the sliver drum seat pulley assembly for transmission connection, the adjusting sliding base can be adjusted and moved parallel to the outer common tangent of the first reversing pulley and the second reversing pulley pitch circle, and the length of the sliver drum seat drive belt remains unchanged during the movement and its tensioning state is not affected.

[0005] Preferably, the pitch circles of the first reversing pulley, the second reversing pulley, the sliver drum drive pulley and the tensioning pulley assembly are intersected on a straight line parallel to the sliding direction of the sliding base, the adjusting sliding base is arranged on both sides of the straight line relative to the tensioning pulley assembly and the sliver drum drive pulley, and the line connecting the first reversing pulley, the second reversing pulley and the tangent points of the straight line is smaller than the line connecting the sliver drum drive pulley, the tensioning pulley assembly and the tangent points of the straight line.

[0006] Preferably, the sliver drum seat pulley assembly is fixedly connected to the sliver drum of the drawing machine, the adjustable sliding base is equipped with a sliver drum mounting plate, the sliver drum mounting plate is slidably connected to the bottom plate of the lower outer shell, the reduction drive assembly is fixedly connected to a transmission shaft, the upper end of the transmission shaft is fixedly connected to a first transmission gear, and the first transmission gear is rotatably connected to the top plate of the upper outer shell.

[0007] Preferably, a sliver coiler is rotatably connected to the top plate of the upper shell, a first steering gear and a second steering gear are rotatably connected to the top plate of the upper shell, and a sliver coiler drive belt is commonly wound around the outer contours of the sliver coiler, the first transmission gear, the first steering gear and the second steering gear.

[0008] Preferably, a rotating lever is installed on the cotton sliver barrel of the drawing machine, and symmetrically distributed limit fixing blocks are fixedly connected to the bottom plate of the lower shell, a threaded adjustment rod is rotatably connected to the limit fixing block, and the end of the threaded adjustment rod away from the cotton sliver barrel of the drawing machine is fixedly connected to a partial rotating gear.

[0009] Preferably, the partially rotating gear is squeezed and matched with the rotating lever, and the rotating lever squeezes the partially rotating gear to make the displacement of the threaded adjustment rod rotate the same as the eccentricity of the corresponding coiler of the cotton barrel of the drawing machine.

[0010] Preferably, an eccentric discharge disc is fixedly connected to the coiler, a rotating wedge ring is fixedly connected to the eccentric discharge disc, symmetrically distributed rear connecting brackets are fixedly connected between the upper outer shell top plate and the lower outer shell bottom plate, and symmetrically distributed connecting fixing frames are fixedly connected to the front connecting bracket and the rear connecting bracket.

[0011] Preferably, a limiting slide rod is fixedly connected to the connecting and fixing frame, a sliding limiting frame is slidably connected to the limiting slide rod, an adjusting spring sheet is fixedly connected between the sliding limiting frame and the connecting and fixing frame, and a limiting stopper is fixedly connected to the upper end of the limiting slide rod.

[0012] Preferably, a wedge-shaped top plate is fixedly connected to the sliding limit frame, the wedge-shaped top plate is wedge-matched with a rotating wedge-shaped ring, the side of the wedge-shaped top plate close to the front connecting bracket is an inclined surface, and the rotating wedge ring is provided with a through groove corresponding to the wedge-shaped top plate that fits with the inclined surface of the wedge-shaped top plate.

[0013] Preferably, the distance that the wedge-shaped top plate slides in the rotating wedge-shaped annular groove corresponds to the elongation of the adjustment spring sheet when it rebounds to the horizontal level.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention cooperates with structures such as a reduction drive assembly and a tension pulley assembly by arranging a reduction drive assembly, drives the sliver drum driving pulley to rotate through the reduction drive assembly, drives the sliver drum seat pulley assembly to rotate through the sliver drum seat transmission belt, and then drives the sliver drum of the drawing machine to rotate synchronously, drives the rotating lever to rotate through the rotation of the sliver drum of the drawing machine, and then drives the rotating gear of the extrusion part to rotate, and then drives the threaded adjusting rod to rotate, and the threaded adjusting rod is threadedly connected with the limit fixing block, so that the threaded adjusting rod drives the adjusting sliding base and the sliver drum seat pulley assembly to move in the horizontal direction, thereby adjusting the eccentricity of the sliver drum of the drawing machine and the coiler, and adjusting the rotation angle of the threaded adjusting rod by the number of revolutions of the sliver drum of the drawing machine, and automatically adjusting the eccentricity of the sliver drum of the drawing machine and the coiler, so that the adjustment of the eccentricity corresponds to the height of the slivers stacked on the sliver drum of the drawing machine; The present invention cooperates with structures such as an eccentric discharge disc and a wedge-shaped top plate, drives the coiler to rotate through a reduction drive assembly, and then drives the eccentric discharge disc and the synchronous rotation, so that the wedge-shaped top plate slides upward intermittently, and then adjusts the spring sheet to make intermittent rebound, so that the cotton strips thrown out by the coiler and exceeding the edge of the cotton strip can of the drawing machine are rebounded into the cotton strip can of the drawing machine, so as to avoid the cotton strips stacked on the cotton strip can of the drawing machine from being bent; The present invention cooperates with structures such as a reduction drive component and a sliver drum seat transmission belt, and adjusts the winding method of the sliver drum seat transmission belt, so that the device can simultaneously drive two sliver drums of a drawing machine to rotate through a single reduction drive component, or drive a single sliver drum of a drawing machine to rotate through a single reduction drive component, thereby ensuring the above-mentioned effects while reflecting the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the connection between the sliver can and the eccentric drive assembly of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 It is a schematic diagram of the sliver drum seat pulley assembly of the present invention; Figure 5 It is a schematic diagram of the adjustment component of the present invention; Figure 6 This is a schematic diagram of the connection of the regulating components of the present invention; Figure 7 A schematic diagram of a serial drive connection structure of a sliver can of the present invention; Figure 8 It is a schematic diagram of a parallel drive connection structure of the sliver can of the present invention.

[0016] In the figure: 100, top plate of upper housing; 101, bottom plate of lower housing; 102, front connecting bracket; 103, rear connecting bracket; 104, sliver drum mounting plate; 105, adjusting sliding base; 200, sliver drum of drawing machine; 300, sliver coiler; 301, first transmission gear; 302, sliver coiler transmission belt; 303, first steering gear; 304, second steering gear; 305, eccentric discharge tray; 400, reduction drive assembly; 401, sliver drum seat pulley assembly; 402, first A reversing pulley; 403, a second reversing pulley; 404, a sliver drum seat drive belt; 405, a tensioning pulley assembly; 406, a sliver drum drive pulley; 407, a transmission shaft; 500, a limit fixing block; 501, a threaded adjustment rod; 502, a partially rotating gear; 503, a rotating lever; 600, a connecting and fixing frame; 601, a limit sliding rod; 602, a sliding limit frame; 603, an adjusting spring sheet; 604, a wedge-shaped top plate; 605, a rotating wedge-shaped ring; 606, a limit baffle. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 8 As shown, the present invention provides an eccentric adjustment mechanism for a sliver drum seat of a drawing frame, comprising an upper shell top plate 100, the upper shell top plate 100 is connected to a front connecting bracket 102, the lower end of the front connecting bracket 102 is fixedly connected to a lower shell bottom plate 101, an adjusting sliding base 105 is slidably connected to the lower shell bottom plate 101, a sliver drum seat pulley assembly 401 is rotatably connected in the adjusting sliding base 105, a reduction drive assembly 400 is installed in the front connecting bracket 102, a sliver drum driving pulley 406 is installed at the lower end of the reduction drive assembly 400, and a first sliver drum seat pulley 406 is rotatably connected in the adjusting sliding base 105. A reversing pulley 402 and a second reversing pulley 403, a tensioning pulley assembly 405 is installed on the bottom plate 101 of the lower shell, and a sliver drum seat drive belt 404 is commonly wound around the outer contour of the first reversing pulley 402, the second reversing pulley 403, the sliver drum driving pulley 406, the tensioning pulley assembly 405 and the sliver drum seat pulley assembly 401 for transmission connection. The sliding base 105 can be adjusted and moved parallel to the outer common tangent of the first reversing pulley 402 and the second reversing pulley 403 pitch circle. During the movement, the length of the sliver drum seat drive belt 404 remains unchanged and its tension state is not affected.

[0019] The above scheme is adopted: the sliver drum driving pulley 406 is driven to rotate through the reduction drive assembly 400, and then the sliver drum seat pulley assembly 401 is driven to rotate through the sliver drum seat transmission belt 404, thereby driving the sliver drum 200 of the drawing machine to rotate synchronously. At the same time, when it is necessary to adjust the horizontal position of the sliver drum seat pulley assembly 401 and the sliver drum 200 of the drawing machine, the sliver drum seat pulley assembly 401, the first reversing pulley 402 and the second reversing pulley 403 are driven to move synchronously by adjusting the sliding base 105, thereby driving the sliver drum 200 of the drawing machine to move synchronously. In order to avoid the sliver drum seat pulley assembly 401, the first reversing pulley 402 and the second reversing pulley 403 affecting the sliver drum seat transmission belt 404 during the horizontal movement, a tensioning pulley assembly 405 is set to adjust the tensioning degree of the sliver drum seat transmission belt 404 during the movement, so that the sliver drum seat transmission belt 404 is always kept in a tensioned state during the dynamic adjustment of the position of the sliver drum 200 of the drawing machine.

[0020] like Figure 2 and 4As shown, the pitch circles of the first reversing pulley 402, the second reversing pulley 403, the sliver drum driving pulley 406 and the tensioning pulley assembly 405 are tangent to a straight line parallel to the sliding direction of the sliding base 105, the sliding base 105 is adjusted to be arranged on both sides of the straight line relative to the tensioning pulley assembly 405 and the sliver drum driving pulley 406, and the line connecting the first reversing pulley 402, the second reversing pulley 403 and the straight line tangent points is smaller than the line connecting the sliver drum driving pulley 406, the tensioning pulley assembly 405 and the straight line tangent points.

[0021] A transmission shaft 407 is fixedly connected to the reduction drive assembly 400 , and a first transmission gear 301 is fixedly connected to the upper end of the transmission shaft 407 . The first transmission gear 301 is rotatably connected to the upper housing top plate 100 .

[0022] The upper shell top plate 100 is rotatably connected to the coiler 300, and the first steering gear 303 and the second steering gear 304 are rotatably connected to the upper shell top plate 100. The coiler drive belt 302 is wound around the outer contours of the coiler 300, the first transmission gear 301, the first steering gear 303 and the second steering gear 304.

[0023] The above scheme is adopted: by rotating the reduction drive assembly 400, the sliver drum drive pulley 406 and the transmission shaft 407 are driven to rotate at the same time, thereby driving the sliver drum seat pulley assembly 401 and the coiler 300 to rotate, and the rotation speed of the sliver drum seat pulley assembly 401 and the coiler 300 is regulated by the reduction drive assembly 400 to ensure that the slivers thrown out by the coiler 300 are evenly stacked in the sliver drum 200 of the drawing machine.

[0024] like Figures 2 to 4 As shown, a rotating lever 503 is installed on the cotton sliver cylinder 200 of the drawing machine, and a symmetrically distributed limiting fixing block 500 is fixedly connected to the bottom plate 101 of the lower shell, and a threaded adjusting rod 501 is rotatably connected to the inner thread of the limiting fixing block 500, and a partial rotating gear 502 is fixedly connected to the end of the threaded adjusting rod 501 away from the cotton sliver cylinder 200 of the drawing machine.

[0025] The partially rotating gear 502 is pressed and matched with the rotating lever 503, and the rotating lever 503 presses the partially rotating gear 502 so that the displacement of the threaded adjustment rod 501 is the same as the eccentricity of the corresponding coiler 300 of the cotton barrel 200 of the drawing machine.

[0026] The above scheme is adopted: when the slivers thrown out by the coiler 300 are initially stacked on the sliver can 200 of the draw frame, due to the distance between the coiler 300 and the sliver can 200 of the draw frame, the length of the slivers thrown out by the coiler 300 becomes longer when they fall on the sliver can 200 of the draw frame, thereby causing the slivers to fall outside the sliver can 200 of the draw frame at the beginning. To avoid the above situation, the eccentricity between the coiler 300 and the sliver can 200 of the draw frame is reduced at the beginning. As the slivers thrown out by the coiler 300 are gradually stacked on the sliver can 200 of the draw frame to a certain height, the slivers are gradually stacked on the sliver can 200 of the draw frame through the sliver can 200 of the draw frame. 0 drives the rotating lever 503 to rotate synchronously, and then the partially rotating gear 502 drives the threaded adjusting rod 501 to rotate, so that the adjusting sliding base 105 slides along the sliver barrel mounting plate 104 toward the limit fixing block 500, and gradually increases the eccentricity between the sliver barrel 200 of the drawing machine and the coiler 300, and adapts the height of the slivers thrown out by the coiler 300 on the sliver barrel 200 of the drawing machine. Since the partially rotating gear 502 is a partial gear, when the slivers are stacked on the sliver barrel 200 of the drawing machine to a certain height, the eccentricity between the coiler 300 and the sliver barrel 200 of the drawing machine is no longer adjusted.

[0027] like Figure 5 and 6 As shown, an eccentric discharge disc 305 is fixedly connected to the coiler 300, a rotating wedge ring 605 is fixedly connected to the eccentric discharge disc 305, symmetrically distributed rear connecting brackets 103 are fixedly connected between the upper shell top plate 100 and the lower shell bottom plate 101, and symmetrically distributed connecting brackets 600 are fixedly connected to the front connecting bracket 102 and the rear connecting bracket 103.

[0028] A limit slide bar 601 is fixedly connected to the connecting and fixing frame 600, a sliding limit frame 602 is slidably connected to the limit slide bar 601, an adjusting spring sheet 603 is fixedly connected between the sliding limit frame 602 and the connecting and fixing frame 600, and a limit stopper 606 is fixedly connected to the upper end of the limit slide bar 601.

[0029] A wedge-shaped top plate 604 is fixedly connected to the sliding limit frame 602, and the wedge-shaped top plate 604 is wedge-matched with the rotating wedge-shaped ring 605. The side of the wedge-shaped top plate 604 close to the front connecting bracket 102 is an inclined surface, and the rotating wedge-shaped ring 605 is provided with a through groove corresponding to the wedge-shaped top plate 604 that fits the inclined surface of the wedge-shaped top plate 604.

[0030] The distance that the wedge-shaped top plate 604 slides in the through groove of the rotating wedge-shaped ring 605 corresponds to the elongation of the adjustment spring sheet 603 when it rebounds to the horizontal state.

[0031] The above scheme is adopted: the transmission shaft 407 is driven to rotate by the reduction drive assembly 400, and then the coiler 300 and the eccentric discharge disc 305 are driven to rotate synchronously, so that every time the coiler 300 and the eccentric discharge disc 305 rotate one circle, the wedge-shaped top plate 604 slides upward along the through groove of the rotating wedge ring 605 under the elastic force of the adjusting spring sheet 603, and is then squeezed and reset by the rotating wedge ring 605. The surface is a right-angled side, and the corresponding through groove of the rotating wedge ring 605 is the same, so that when the wedge-shaped top plate 604 slides upward, it bounces up in an instant under the elastic force of the adjusting spring sheet 603, and then the adjusting spring sheet 603 throws the coiler 300 onto the cotton sliver cylinder 200 of the drawing machine, and the cotton slivers that may exceed the edge of the cotton sliver cylinder 200 of the drawing machine are bounced into the cotton sliver cylinder 200 of the drawing machine, so as to avoid the cotton slivers stacked on the cotton sliver cylinder 200 of the drawing machine being no longer on the same plane.

[0032] The working principle and use process of the present invention: First, adjust the eccentricity of the large coiler 300 and the sliver drum 200 of the drawing machine, then start the reduction drive assembly 400, and drive the sliver drum drive pulley 406 to rotate through the reduction drive assembly 400, and then drive the sliver drum seat pulley assembly 401, the first reversing pulley 402 and the second reversing pulley 403 to rotate synchronously through the sliver drum seat transmission belt 404, and then the sliver drum seat pulley assembly 401 drives the sliver drum 200 of the drawing machine to rotate, and at the same time, the reduction drive assembly 400 drives the transmission shaft 407 to rotate, and then drives The first transmission gear 301 rotates, and the first steering gear 303, the second steering gear 304 and the coiler 300 rotate synchronously through the coiler transmission belt 302. At the same time, the speed of the sliver drum drive pulley 406 and the transmission shaft 407 is adjusted through the reduction drive assembly 400, thereby controlling the speed of the coiler 300 and the sliver drum 200 of the drawing frame, so that the coiler 300 stacks the slivers on the sliver drum 200 of the drawing frame. Since there is a gap between the coiler 300 and the sliver drum 200 of the drawing frame at the beginning, The length of the cotton strips thrown out by the coiler 300 increases. In order to prevent the cotton strips from falling on the outside of the cotton strip drum 200 of the drawing machine, the rotation of the cotton strip drum 200 of the drawing machine drives the rotating lever 503 to rotate synchronously, thereby squeezing the partially rotating gear 502, so that the partially rotating gear 502 drives the threaded adjusting rod 501 to rotate synchronously, and then through the threaded connection between the partially rotating gear 502 and the threaded adjusting rod 501, the threaded adjusting rod 501 drives the adjusting sliding base 105 to synchronously move along the limiting fixed block 500 away from the drawing machine. The sliver cylinder 200 of the drawing machine moves in the direction of the sliver cylinder 200, so that the eccentricity of the coiler 300 and the sliver cylinder 200 of the drawing machine is reduced. At the same time, the sliver cylinder 200 of the drawing machine rotates one circle, driving the rotating lever 503 to squeeze the partial rotating gear 502 to rotate a certain angle, and cooperating with the partial gear structure of the partial rotating gear 502, so that after the slivers thrown out by the coiler 300 are stacked on the sliver cylinder 200 of the drawing machine to a certain height, the threaded adjusting rod 501 stops rotating, and the eccentricity of the sliver cylinder 200 of the drawing machine and the coiler 300 remains unchanged.

[0033] In the process of adjusting the eccentricity between the sliver drum 200 and the coiler 300 of the drawing machine, the threaded adjustment rod 501 drives the adjustment sliding base 105 to slide, and then drives the sliver drum seat pulley assembly 401, the first reversing pulley 402 and the second reversing pulley 403 to slide, while the tensioning pulley assembly 405 and the sliver drum drive pulley 406 remain stationary. In order to avoid affecting the sliver drum seat drive belt 404, the tensioning pulley assembly 405 is used to adjust the tension of the sliver drum seat drive belt 404 during the process of adjusting the eccentricity, so as to keep the sliver drum seat drive belt 404 always in a taut state, and at the same time ensure that the rotation speed of the sliver drum 200 of the drawing machine does not change.

[0034] In order to prevent the slivers from falling outside the sliver can 200 of the drawing machine when the distance between the coiler 300 and the sliver can 200 is large, the eccentric discharge plate 305 is driven to rotate synchronously by the rotation of the coiler 300, and then the rotating wedge ring 605 is driven to rotate synchronously, so that the wedge-shaped top plate 604, which is acted upon by the elastic force of the adjusting spring sheet 603, slides upward intermittently, and the upward sliding distance of the sliding limit frame 602 is limited by the limit stopper 606 on the limit slide rod 601. , thereby limiting the elongation of the rebound of the adjusting spring sheet 603, and at the same time rotating the shape of the inclined surface and the right-angled side between the wedge ring 605 and the wedge-shaped top plate 604, so that the upward sliding action of the wedge-shaped top plate 604 is quickly slid up under the elastic force of the adjusting spring sheet 603, ensuring that the rebound force of the adjusting spring sheet 603 will exceed the cotton strips of the cotton strip cylinder 200 of the drawing machine and rebound into the cotton strip cylinder 200 of the drawing machine, thereby avoiding the cotton strips stacked on the cotton strip cylinder 200 of the drawing machine from being folded.

[0035] By adjusting the winding method of the sliver drum seat drive belt 404, a single reduction drive assembly 400 can drive two pairs of sliver drum seat pulley assemblies 401, the first reversing pulley 402 and the second reversing pulley 403 to rotate synchronously. Figure 7 and Figure 8 The winding mode enables a single reduction drive assembly 400 to drive two drawing frame sliver cylinders 200 to rotate synchronously at the same time, or a single reduction drive assembly 400 can drive a single drawing frame sliver cylinder 200 to rotate, thereby increasing the flexibility of the device.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] 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. An eccentric adjustment mechanism for a sliver cylinder seat of a drawing frame, comprising an upper housing top plate (100), characterized in that: The upper shell top plate (100) is connected to a front connecting bracket (102); the lower end of the front connecting bracket (102) is fixedly connected to the lower shell bottom plate (101); the lower shell bottom plate (101) is slidably connected to an adjustable sliding base (105); a sliver drum seat pulley assembly (401) is rotatably connected to the adjustable sliding base (105); a reduction drive assembly (400) is installed in the front connecting bracket (102); a sliver drum drive pulley (406) is installed at the lower end of the reduction drive assembly (400); a first reversing pulley (402) and a second reversing pulley are rotatably connected to the adjustable sliding base (105). The first reversing pulley (402), the second reversing pulley (403), the sliver drum driving pulley (406), the tensioning pulley assembly (405) and the sliver drum seat pulley assembly (401) are connected to each other by a sliver drum seat transmission belt (404) wound around their outer contours. The adjustable sliding base (105) can be adjusted and moved parallel to the outer common tangent of the pitch circle of the first reversing pulley (402) and the second reversing pulley (403). During the movement, the length of the sliver drum seat transmission belt (404) remains unchanged and its tension state is not affected.

2. The eccentric adjustment mechanism of the sliver cylinder seat of the drawing frame according to claim 1, characterized in that: The pitch circles of the first reversing pulley (402), the second reversing pulley (403), the sliver drum driving pulley (406), and the tensioning pulley assembly (405) are tangent to a straight line parallel to the sliding direction of the sliding base (105); the adjusting sliding base (105) is arranged on both sides of the straight line relative to the tensioning pulley assembly (405) and the sliver drum driving pulley (406); and the line connecting the first reversing pulley (402), the second reversing pulley (403) and the straight line tangent points is smaller than the line connecting the sliver drum driving pulley (406), the tensioning pulley assembly (405) and the straight line tangent points.

3. The eccentric adjustment mechanism of the sliver cylinder seat of the drawing frame according to claim 1, characterized in that: The sliver drum seat pulley assembly (401) is fixedly connected to a sliver drum of a drawing machine (200); the adjustable sliding base (105) is equipped with a sliver drum mounting plate (104); the sliver drum mounting plate (104) is slidably connected to the bottom plate of the lower shell (101); the reduction drive assembly (400) is fixedly connected to a transmission shaft (407); the upper end of the transmission shaft (407) is fixedly connected to a first transmission gear (301); and the first transmission gear (301) is rotatably connected to the top plate of the upper shell (100).

4. The eccentric adjustment mechanism of the sliver cylinder seat of the drawing frame according to claim 3, characterized in that: A sliver coiler (300) is rotatably connected to the top plate (100) of the upper housing, a first steering gear (303) and a second steering gear (304) are rotatably connected to the top plate (100) of the upper housing, and a sliver coiler transmission belt (302) is wound around the outer contours of the sliver coiler (300), the first transmission gear (301), the first steering gear (303) and the second steering gear (304).

5. The eccentric adjustment mechanism of the sliver cylinder seat of the drawing frame according to claim 3, characterized in that: A rotating lever (503) is installed on the drawing frame cotton sliver cylinder (200), and symmetrically distributed limiting fixing blocks (500) are fixedly connected to the bottom plate (101) of the lower shell, and a threaded adjustment rod (501) is rotatably connected to the inner thread of the limiting fixing block (500), and one end of the threaded adjustment rod (501) away from the drawing frame cotton sliver cylinder (200) is fixedly connected to a part of the rotating gear (502).

6. The eccentric adjustment mechanism of the sliver cylinder seat of the drawing frame according to claim 5, characterized in that: The partially rotating gear (502) is pressed and matched with the rotating lever (503), and the rotating lever (503) presses the partially rotating gear (502) so that the displacement of the threaded adjustment rod (501) is the same as the eccentricity of the corresponding coiler (300) of the cotton sliver cylinder (200) of the drawing machine.

7. The eccentric adjustment mechanism of the sliver cylinder seat of the drawing frame according to claim 4, characterized in that: An eccentric discharge disc (305) is fixedly connected to the coiler (300), a rotating wedge ring (605) is fixedly connected to the eccentric discharge disc (305), symmetrically distributed rear connection brackets (103) are fixedly connected between the upper shell top plate (100) and the lower shell bottom plate (101), and symmetrically distributed connection fixing frames (600) are fixedly connected to the front connection bracket (102) and the rear connection bracket (103).

8. The eccentric adjustment mechanism of the sliver cylinder seat of the drawing frame according to claim 7, characterized in that: The connection fixing frame (600) is fixedly connected to a limit slide bar (601), the limit slide bar (601) is slidably connected to a sliding limit frame (602), an adjustment spring sheet (603) is fixedly connected between the sliding limit frame (602) and the connection fixing frame (600), and the upper end of the limit slide bar (601) is fixedly connected to a limit stop sheet (606).

9. The eccentric adjustment mechanism of the sliver cylinder seat of the drawing frame according to claim 8, characterized in that: A wedge-shaped top plate (604) is fixedly connected to the sliding limit frame (602), and the wedge-shaped top plate (604) is wedge-matched with a rotating wedge-shaped ring (605). The side of the wedge-shaped top plate (604) close to the front connecting bracket (102) is an inclined surface, and the rotating wedge-shaped ring (605) is provided with a through groove corresponding to the wedge-shaped top plate (604) and fitting with the inclined surface of the wedge-shaped top plate (604).

10. The eccentric adjustment mechanism of the sliver cylinder seat of the drawing frame according to claim 9, characterized in that: The distance that the wedge-shaped top plate (604) slides in the through groove of the rotating wedge-shaped ring (605) corresponds to the elongation of the regulating spring sheet (603) when it rebounds to the horizontal direction.

Images