An eccentric adjustment mechanism for cotton sliver can seat of a drawing frame

Abstract

This invention belongs to the field of textile machinery technology and discloses an eccentric adjustment mechanism for a sliver can seat of a drawing frame. It includes an upper outer shell top plate, with symmetrically distributed front connecting brackets fixedly connected to the top plate. A lower outer shell bottom plate is fixedly connected to the lower end of each front connecting bracket. Symmetrically distributed sliver can mounting plates are installed on the lower outer shell bottom plate. An adjusting sliding base is slidably connected to each sliver can mounting plate. A sliver can seat pulley assembly is rotatably connected within the adjusting sliding base. Symmetrically distributed reduction drive assemblies are installed within the front connecting brackets. A sliver can drive pulley is fixedly connected to the lower end of each reduction drive assembly. This invention, through the cooperation of structures such as the reduction drive assembly and the tension pulley assembly, drives the sliver can seat drive pulley to rotate via the reduction drive assembly, which in turn drives the sliver can seat pulley assembly to rotate via the sliver can seat transmission belt, thereby causing the sliver cans of the drawing frame to rotate synchronously.

Description

Technical Field

[0001] This invention belongs to the field of textile machinery technology, specifically an eccentric adjustment mechanism for a sliver can seat of a drawing frame. Background Technology

[0002] In the spinning process of a carding machine or drawing frame, the processed sliver is fed from the coiler and stored in the sliver can below it. To ensure that the sliver can store sliver neatly, orderly, and efficiently, a coiler with a smaller rotating diameter and a sliver can with a larger diameter are used in conjunction. The rotation center of the coiler and the rotation center of the sliver can are not coincident, but rather set with a certain eccentricity. When the machine is running, the coiler rotates at high speed, while the sliver can rotates at low speed. This allows the sliver to be evenly layered along the inner wall of the sliver can in a near-circular trajectory with the rotation diameter of the coiler. This process maximizes the storage of sliver and maintains the stability of the cotton column formed by the sliver stack. The eccentricity between the coiler and the sliver can rotation center 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 between it and the inner wall of the sliver can is too small, the sliver will rub against the sliver can during stacking, damaging the fiber distribution structure inside the sliver and affecting product quality. In extreme cases, it may also affect the laying trajectory of the sliver, causing the sliver to be laid in a disordered manner, with the slivers rubbing against each other, cross-linking, or even knotting, which can easily lead to sliver breakage in subsequent production processes and affect production efficiency. Therefore, the eccentricity between the coiler and the sliver can should be carefully adjusted during installation and debugging to improve the storage capacity of the sliver can and ensure the quality of the sliver. Currently, the rotation of the sliver can base in mainstream tampons is usually driven by a belt. However, the belt length is fixed, and the position of the drive pulley is also immovable. Therefore, when adjusting the eccentricity of the sliver can, it is necessary to disassemble many parts to adjust the belt tension mechanism at the same time to ensure that the belt transmission function is normal. Alternatively, a separate motor can be used to drive the sliver can base, with the motor and the sliver can base mounted on the same movable base. When adjusting the eccentricity, both move together. These structures are either complicated to operate and inconvenient to adjust, or they are costly. Summary of the Invention

[0003] To address the problem mentioned in the background art that the existing sliver can drive device is fixed and that adjusting the eccentricity distance between the sliver can and the coiler is time-consuming and laborious, the present invention provides an eccentricity adjustment mechanism for the sliver can seat of a drawing frame.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an eccentric adjustment mechanism for a sliver can seat of a drawing frame, comprising an upper outer shell top plate, a front connecting bracket connected to the upper outer shell top plate, a lower outer shell bottom plate fixedly connected to the lower end of the front connecting bracket, an adjusting sliding base slidably connected to the lower outer shell bottom plate, a sliver can seat pulley assembly rotatably connected inside the adjusting sliding base, a reduction drive assembly installed inside the front connecting bracket, a sliver can drive pulley installed at the lower end of the reduction drive assembly, a first reversing pulley and a second reversing pulley rotatably connected to the adjusting sliding base, and a tension pulley assembly installed on the lower outer shell bottom plate. A sliver can seat transmission belt is wound around the outer contours of the first reversing pulley, the second reversing pulley, the sliver can drive pulley, the tension pulley assembly, and the sliver can seat pulley assembly. The adjusting sliding base can be adjusted and moved parallel to the external common tangent of the pitch circles of the first and second reversing pulleys. During the movement, the length of the sliver can seat transmission belt remains unchanged and its tension is not affected.

[0005] Preferably, the pitch circles of the first reversing pulley, the second reversing pulley, the sliver can drive pulley, and the tension pulley assembly are tangent to a straight line parallel to the sliding direction of the sliding base. The adjusting sliding base is positioned on both sides of the straight line relative to the tension pulley assembly and the sliver can drive pulley, and the line connecting the first reversing pulley, the second reversing pulley, and the tangent point of the straight line is smaller than the line connecting the sliver can drive pulley, the tension pulley assembly, and the tangent point of the straight line.

[0006] Preferably, a sliver canister for a drawing machine is fixedly connected to the sliver canister pulley assembly, a sliver canister mounting plate is installed on the adjusting sliding base, the sliver canister mounting plate is slidably connected to the bottom plate of the lower outer casing, a transmission shaft is fixedly connected to the reduction drive assembly, a first transmission gear is fixedly connected to the upper end of the transmission shaft, and the first transmission gear is rotatably connected to the top plate of the upper outer casing.

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

[0008] Preferably, a rotating lever is installed on the sliver can of the drawing frame, and symmetrically distributed limiting blocks are fixedly connected to the bottom plate of the lower outer casing. A threaded adjusting rod is rotatably threadedly connected inside the limiting fixing block, and a portion of a rotating gear is fixedly connected to the end of the threaded adjusting rod away from the sliver can of the drawing frame.

[0009] Preferably, the partially rotating gear is engaged with the rotating lever, and the displacement of the threaded adjusting rod caused by the rotating lever pressing the partially rotating gear is the same as the eccentricity of the coiler corresponding to the sliver can of the drawing frame.

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

[0011] Preferably, a limiting slide rod is fixedly connected to the connecting fixing frame, a sliding limiting frame is slidably connected through the limiting slide rod, an adjusting spring plate is fixedly connected between the sliding limiting frame and the connecting fixing frame, and a limiting baffle 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-shapedly engaged with the rotating wedge-shaped ring, the side of the wedge-shaped top plate near the front connecting bracket is inclined, and the rotating wedge-shaped ring is provided with a through groove corresponding to the wedge-shaped top plate that fits against the inclined surface of the wedge-shaped top plate.

[0013] Preferably, the distance the wedge-shaped top plate slides within the rotating wedge-shaped annular groove corresponds to the elongation of the adjusting spring plate as it rebounds to the horizontal position.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a combination of a speed reduction drive assembly and a tension pulley assembly. The speed reduction drive assembly drives the sliver can drive pulley to rotate, which in turn drives the sliver can seat pulley assembly to rotate via a transmission belt. This, in turn, drives the sliver can of the drawing frame to rotate synchronously. The rotation of the sliver can of the drawing frame drives the rotating lever to rotate, which in turn causes the rotating gear of the compression section to rotate, which in turn drives the threaded adjusting rod to rotate. The threaded adjusting rod is connected to the limit fixing block, causing the threaded adjusting rod to drive the adjusting sliding base and the sliver can seat pulley assembly to move horizontally, thereby adjusting the eccentricity between the sliver can of the drawing frame and the coiler. The rotation angle of the threaded adjusting rod is adjusted by the number of rotations of the sliver can of the drawing frame. While automatically adjusting the eccentricity between the sliver can of the drawing frame and the coiler, the adjustment of the eccentricity corresponds to the height of the sliver stacked on the sliver can of the drawing frame. This invention, through the combination of structures such as an eccentric discharge plate and a wedge-shaped top plate, drives the coiler to rotate via a speed reduction drive assembly, which in turn drives the eccentric discharge plate to rotate synchronously. This causes the wedge-shaped top plate to slide upward intermittently, thereby adjusting the spring sheet to rebound intermittently. This bounces the slivers thrown out by the coiler that exceed the edge of the sliver can of the drawing frame back into the sliver can of the drawing frame, thus preventing the slivers stacked on the sliver can of the drawing frame from forming corners. This invention, through the combination of a speed reduction drive assembly and a sliver can seat drive belt, and by adjusting the winding method of the sliver can seat drive belt, allows the device to simultaneously drive two drawing frame sliver cans to rotate with a single speed reduction drive assembly, or drive a single drawing frame sliver can to rotate with a single speed reduction drive assembly. This ensures the aforementioned effects while demonstrating the flexibility of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the connection between the cotton 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 This is a schematic diagram of the cotton sliver holder pulley assembly of the present invention; Figure 5 This is a schematic diagram of the adjustment component of the present invention; Figure 6 This is a schematic diagram of the connection of the adjustment component of the present invention; Figure 7 This is a schematic diagram of a series drive connection structure for the cotton sliver can of the present invention; Figure 8 This is a schematic diagram of a parallel drive connection structure for the cotton sliver can of the present invention.

[0016] In the diagram: 100, Top plate of upper outer casing; 101, Bottom plate of lower outer casing; 102, Front connecting bracket; 103, Rear connecting bracket; 104, Sweat can mounting plate; 105, Adjustable sliding base; 200, Sweat can of drawing machine; 300, Coiler; 301, First transmission gear; 302, Coiler transmission belt; 303, First steering gear; 304, Second steering gear; 305, Eccentric discharge plate; 400, Reduction drive assembly; 401, Sweat can seat pulley assembly; 402, ... 403. First reversing pulley; 404. Second reversing pulley; 405. Transmission belt for sliver can seat; 406. Tensioning pulley assembly; 407. Drive pulley for sliver can; 408. Transmission shaft; 509. Limiting block; 500. Threaded adjusting rod; 501. Partial rotating gear; 502. Rotating lever; 603. Connecting bracket; 601. Limiting slide rod; 602. Sliding limit bracket; 603. Adjusting spring plate; 604. Wedge-shaped top plate; 605. Rotating wedge-shaped ring; 606. Limiting stop plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort 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 can seat of a drawing frame, including an upper outer shell top plate 100, a front connecting bracket 102 connected to the upper outer shell top plate 100, a lower outer shell bottom plate 101 fixedly connected to the lower end of the front connecting bracket 102, an adjusting sliding base 105 slidably connected to the lower outer shell bottom plate 101, a sliver can seat pulley assembly 401 rotatably connected inside the adjusting sliding base 105, a reduction drive assembly 400 installed inside the front connecting bracket 102, a sliver can seat drive pulley 406 installed at the lower end of the reduction drive assembly 406, and a second eccentric adjustment mechanism 406 rotatably connected to the adjusting sliding base 105. A reversing pulley 402 and a second reversing pulley 403 are provided. A tensioning pulley assembly 405 is installed on the bottom plate 101 of the lower outer casing. The first reversing pulley 402, the second reversing pulley 403, the sliver can drive pulley 406, the tensioning pulley assembly 405, and the sliver can seat pulley assembly 401 are connected by a sliver can seat drive belt 404 around their outer contours. The adjustable sliding base 105 can be adjusted and moved parallel to the external common tangent of the pitch circles of the first reversing pulley 402 and the second reversing pulley 403. During the movement, the length of the sliver can seat drive belt 404 remains unchanged and its tension is not affected.

[0019] The above scheme is adopted as follows: the reduction drive assembly 400 drives the sliver can drive pulley 406 to rotate, which in turn drives the sliver can seat pulley assembly 401 to rotate through the sliver can seat drive belt 404, thereby driving the sliver can 200 of the drawing frame to rotate synchronously. At the same time, when it is necessary to adjust the horizontal position of the sliver can seat pulley assembly 401 and the sliver can 200 of the drawing frame, the sliding base 105 is adjusted to drive the sliver can seat pulley assembly 401, the first reversing pulley 402 and the second reversing pulley 403 to move synchronously, thereby driving the sliver can 200 of the drawing frame to move synchronously. In order to avoid the sliver can seat pulley assembly 401, the first reversing pulley 402 and the second reversing pulley 403 to affect the sliver can seat drive belt 404 during the horizontal movement, a tensioning pulley assembly 405 is set to adjust the tension of the sliver can seat drive belt 404 during the movement, so that the sliver can seat drive belt 404 is always kept taut during the dynamic adjustment of the position of the sliver can 200 of the drawing frame.

[0020] like Figure 2 and 4As shown, the first reversing pulley 402, the second reversing pulley 403, the sliver can drive pulley 406, and the tension pulley assembly 405 are tangent to a straight line parallel to the sliding direction of the sliding base 105. The sliding base 105 is positioned on both sides of the straight line relative to the tension pulley assembly 405 and the sliver can drive pulley 406, and the line connecting the first reversing pulley 402, the second reversing pulley 403, and the tangent point of the straight line is smaller than the line connecting the sliver can drive pulley 406, the tension pulley assembly 405, and the tangent point of the straight line.

[0021] A transmission shaft 407 is fixedly connected to the speed reduction drive assembly 400. 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 top plate 100 of the upper housing.

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

[0023] The above solution is adopted: the rotation of the speed reduction drive assembly 400 drives the rotation of the sliver can drive pulley 406 and the transmission shaft 407, which in turn drives the sliver can seat pulley assembly 401 and the coiler 300 to rotate. The speed reduction drive assembly 400 regulates the rotation speed of the sliver can seat pulley assembly 401 and the coiler 300 to ensure that the sliver thrown out by the coiler 300 is evenly stacked in the sliver can of the drawing frame 200.

[0024] like Figures 2 to 4 As shown, a rotating lever 503 is installed on the sliver can of the drawing frame, and symmetrically distributed limiting blocks 500 are fixedly connected to the bottom plate 101 of the lower outer casing. A threaded adjusting rod 501 is rotatably threadedly connected inside the limiting blocks 500, and a partially rotating gear 502 is fixedly connected to one end of the threaded adjusting rod 501 away from the sliver can of the drawing frame.

[0025] Partial rotating gear 502 is engaged with rotating lever 503 by pressing. Rotating lever 503 presses partial rotating gear 502, causing the displacement of threaded adjusting rod 501 to be the same as the eccentricity of the coiler 300 corresponding to sliver can 200 of the drawing frame.

[0026] The above solution is adopted as follows: When the sliver thrown out by the coiler 300 initially piles up on the sliver can 200 of the drawing frame, the distance between the coiler 300 and the drawing frame sliver can 200 causes the sliver thrown out by the coiler 300 to be longer when it lands on the drawing frame sliver can 200. This may result in the initial sliver falling outside the drawing frame sliver can 200. To avoid this situation, the eccentricity between the coiler 300 and the drawing frame sliver can 200 is initially reduced. As the sliver thrown out by the coiler 300 gradually piles up to a certain height on the drawing frame sliver can 200, the sliver passes through the drawing frame sliver can 200... The rotation of 0 drives the rotating lever 503 to rotate synchronously, which in turn causes the partial rotating gear 502 to drive the threaded adjusting rod 501 to rotate, causing the adjusting sliding base 105 to slide along the cotton sliver can mounting plate 104 toward the limiting fixing block 500, gradually increasing the eccentricity between the cotton sliver can 200 of the drawing frame and the coiler 300, adapting to the height of the cotton sliver thrown out by the coiler 300 stacked on the cotton sliver can 200 of the drawing frame. Since the partial rotating gear 502 is a partial gear, once the cotton sliver has stacked to a certain height on the cotton sliver can 200 of the drawing frame, the eccentricity between the coiler 300 and the cotton sliver can 200 of the drawing frame will no longer be adjusted.

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

[0028] A limiting slide rod 601 is fixedly connected to the connecting fixing frame 600. A sliding limiting frame 602 is slidably connected through the limiting slide rod 601. An adjusting spring plate 603 is fixedly connected between the sliding limiting frame 602 and the connecting fixing frame 600. A limiting baffle 606 is fixedly connected to the upper end of the limiting slide rod 601.

[0029] A wedge-shaped top plate 604 is fixedly connected to the sliding limit frame 602. The wedge-shaped top plate 604 and the rotating wedge-shaped ring 605 are wedge-shaped and fit together. The side of the wedge-shaped top plate 604 near the front connecting bracket 102 is inclined. The rotating wedge-shaped ring 605 has a through groove that fits against the inclined surface of the wedge-shaped top plate 604.

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

[0031] The above scheme is adopted: the reduction drive assembly 400 drives the transmission shaft 407 to rotate, which in turn drives the coiler 300 and the eccentric discharge disc 305 to rotate synchronously. Thus, for each rotation of the coiler 300 and the eccentric discharge disc 305, the wedge-shaped top plate 604 slides upward along the through groove of the rotating wedge-shaped ring 605 under the elastic force of the adjusting spring plate 603, and is then pressed back to its original position by the rotating wedge-shaped ring 605. Since one side of the wedge-shaped top plate 604 is inclined, one... The surface has right-angled sides, and the corresponding through groove of the rotating wedge ring 605 is also the same. When the wedge top plate 604 slides upward, it is instantly bounced up by the elastic force of the adjusting spring plate 603. This causes the adjusting spring plate 603 to throw the coiler 300 onto the sliver can 200 of the drawing frame. Slivers that may exceed the edge of the sliver can 200 of the drawing frame are bounced into the sliver can 200 of the drawing frame, thus preventing the slivers stacked on the sliver can 200 of the drawing frame from not being on the same plane.

[0032] Working principle and usage process of this invention: First, adjust the eccentricity of the large coiler 300 and the sliver can 200 of the drawing frame. Then, start the reduction drive assembly 400. The reduction drive assembly 400 drives the sliver can drive pulley 406 to rotate, which in turn drives the sliver can seat pulley assembly 401, the first reversing pulley 402, and the second reversing pulley 403 to rotate synchronously via the sliver can seat drive belt 404. This, in turn, drives the sliver can seat pulley assembly 401 to rotate the sliver can 200 of the drawing frame. At the same time, the reduction drive assembly 400 drives the transmission shaft 407 to rotate, thereby driving... The rotation of the first transmission gear 301 drives the first steering gear 303, the second steering gear 304, and the coiler 300 to rotate synchronously via the coiler drive belt 302. Simultaneously, the speed of the sliver can drive pulley 406 and the transmission shaft 407 is adjusted via the reduction drive assembly 400, thereby controlling the speed of the coiler 300 and the sliver can 200 of the drawing frame. This ensures that the coiler 300 stacks the sliver onto the sliver can 200 of the drawing frame. Initially, there is a gap between the coiler 300 and the sliver can 200. This results in an increase in the length of the sliver ejected by the coiler 300. To prevent the sliver from falling outside the sliver canister 200 of the drawing frame, the rotation of the sliver canister 200 drives the rotating lever 503 to rotate synchronously, thereby squeezing part of the rotating gear 502. This causes part of the rotating gear 502 to drive the threaded adjusting rod 501 to rotate synchronously. Through the threaded connection between part of the rotating gear 502 and the threaded adjusting rod 501, the threaded adjusting rod 501 drives the adjusting sliding base 105 to move synchronously away from the drawing frame along the limiting fixing block 500. The directional movement of the sliver can 200 reduces the eccentricity between the coiler 300 and the drawing frame sliver can 200. Simultaneously, the rotation of the drawing frame sliver can 200 once drives the rotating lever 503 to squeeze the rotating gear 502 to rotate at a certain angle. In conjunction with the gear structure of the rotating gear 502, the sliver thrown out by the coiler 300 is stacked on the drawing frame sliver can 200 to a certain height, and then the threaded adjusting rod 501 stops rotating, keeping the eccentricity between the drawing frame sliver can 200 and the coiler 300 unchanged.

[0033] During the process of adjusting the eccentricity between the sliver can 200 of the drawing frame and the coiler 300, the threaded adjusting rod 501 drives the adjusting sliding base 105 to slide, which in turn drives the sliver can 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 can drive pulley 406 remain stationary. In order to avoid affecting the sliver can seat drive belt 404, the tensioning pulley assembly 405 adjusts the tension of the sliver can seat drive belt 404 during the eccentricity adjustment process, keeping the sliver can seat drive belt 404 always taut, while ensuring that the rotational speed of the sliver can 200 of the drawing frame does not change.

[0034] To prevent the sliver from falling outside the sliver can 200 of the drawing frame when there is a large gap between the coiler 300 and the sliver can 200 of the drawing frame, the rotation of the coiler 300 drives the eccentric discharge disc 305 to rotate synchronously, which in turn drives the rotating wedge ring 605 to rotate synchronously. This causes the wedge-shaped top plate 604, which is subjected to the elastic force of the adjusting spring plate 603, to slide upward intermittently. The upward sliding distance of the sliding limit frame 602 is limited by the limit baffle 606 on the limit slide rod 601. This limits the elongation of the adjusting spring plate 603, while simultaneously rotating the shape of the inclined surface and right-angled side between the wedge ring 605 and the wedge top plate 604, so that the upward sliding action of the wedge top plate 604 is a rapid upward sliding under the elastic force of the adjusting spring plate 603. This ensures that the rebound force of the adjusting spring plate 603 will exceed the force of the sliver in the drawing frame sliver can 200 and bounce back into the drawing frame sliver can 200, thus preventing the sliver stacked on the drawing frame sliver can 200 from forming a bend.

[0035] By adjusting the winding pattern of the sliver can drive belt 404, a single reduction drive assembly 400 can drive two pairs of sliver can pulley assemblies 401, the first reversing pulley 402, and the second reversing pulley 403 to rotate synchronously. Figure 7 and Figure 8 The winding method allows a single reduction drive assembly 400 to simultaneously drive two drawing frame sliver cans 200 to rotate synchronously, or a single reduction drive assembly 400 to drive a single drawing frame sliver can 200 to rotate, increasing the flexibility of the device.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sliver can seat eccentric adjustment mechanism for a drawing frame, comprising an upper housing top plate (100), characterised in that: The upper outer 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 outer shell bottom plate (101). An adjusting sliding base (105) is slidably connected to the lower outer shell bottom plate (101). A swab can seat pulley assembly (401) is rotatably connected inside the adjusting sliding base (105). A reduction drive assembly (400) is installed inside the front connecting bracket (102). A swab can drive pulley (406) is installed at the lower end of the reduction drive assembly (400). A first reversing pulley (402) and a second reversing belt are rotatably connected to the adjusting sliding base (105). The lower outer shell base plate (101) is equipped with a tensioning pulley assembly (405). The first reversing pulley (402), the second reversing pulley (403), the sliver can drive pulley (406), the tensioning pulley assembly (405) and the sliver can seat pulley assembly (401) are connected by a sliver can seat drive belt (404) around their outer contours. The adjusting sliding base (105) can be adjusted and moved parallel to the 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 can seat drive belt (404) remains unchanged and its tension is not affected. The sliver can seat pulley assembly (401) is fixedly connected to a sliver can (200) of a drawing machine. The adjusting sliding base (105) is equipped with a sliver can mounting plate (104). The sliver can mounting plate (104) is slidably connected to the bottom plate (101) of the lower outer shell. 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). The first transmission gear (301) is rotatably connected to the top plate (100) of the upper outer shell. A rotating lever (503) is installed on the sliver can (200) of the drawing frame, and symmetrically distributed limiting blocks (500) are fixedly connected to the bottom plate (101) of the lower outer shell. A threaded adjusting rod (501) is rotatably threadedly connected inside the limiting fixing block (500), and a partial rotating gear (502) is fixedly connected to one end of the threaded adjusting rod (501) away from the sliver can (200) of the drawing frame. The partial rotating gear (502) is engaged with the rotating lever (503). The rotating lever (503) presses the partial rotating gear (502) to make the displacement of the threaded adjusting rod (501) rotate the same as the eccentricity of the coiler (300) corresponding to the sliver can (200) of the drawing machine.

2. The sliver canister seat eccentric adjustment mechanism of claim 1 wherein: The pitch circles of the first reversing pulley (402), the second reversing pulley (403), the sliver can drive pulley (406), and the tension 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 positioned on both sides of the straight line relative to the tension pulley assembly (405) and the sliver can drive pulley (406). The line connecting the first reversing pulley (402), the second reversing pulley (403), and the tangent point of the straight line is smaller than the line connecting the sliver can drive pulley (406), the tension pulley assembly (405), and the tangent point of the straight line.

3. The sliver canister seat eccentric adjustment mechanism of claim 1 wherein: A coiler (300) is rotatably connected to the top plate (100) of the upper outer shell. A first steering gear (303) and a second steering gear (304) are rotatably connected to the top plate (100) of the upper outer shell. A coiler drive belt (302) is wound around the outer contours of the coiler (300), the first drive gear (301), the first steering gear (303), and the second steering gear (304).

4. The sliver canister seat eccentric adjustment mechanism of claim 3, wherein: An eccentric discharge disc (305) is fixedly connected to the coiler (300), and a rotating wedge ring (605) is fixedly connected to the eccentric discharge disc (305). A symmetrically distributed rear connecting bracket (103) is fixedly connected between the top plate (100) of the upper outer shell and the bottom plate (101) of the lower outer shell. A symmetrically distributed connecting bracket (600) is fixedly connected to the front connecting bracket (102) and the rear connecting bracket (103).

5. The sliver canister seat eccentric adjustment mechanism of claim 4 wherein: A limiting slide rod (601) is fixedly connected to the connecting fixing frame (600), and a sliding limiting frame (602) is slidably connected through the limiting slide rod (601). An adjusting spring plate (603) is fixedly connected between the sliding limiting frame (602) and the connecting fixing frame (600). A limiting baffle (606) is fixedly connected to the upper end of the limiting slide rod (601).

6. The eccentric adjustment mechanism for the sliver can seat of the drawing frame according to claim 5, characterized in that: A wedge-shaped top plate (604) is fixedly connected to the sliding limit frame (602). The wedge-shaped top plate (604) is wedge-shapedly engaged with the rotating wedge-shaped ring (605). The side of the wedge-shaped top plate (604) near the front connecting bracket (102) is inclined. The rotating wedge-shaped ring (605) has a through groove that fits against the inclined surface of the wedge-shaped top plate (604).

7. The eccentric adjustment mechanism for the sliver can seat of the drawing frame according to claim 6, 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 adjusting spring plate (603) when it rebounds to the horizontal.

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