Roving thread introduction pinch roll mechanism cleaning structure

Abstract

The utility model relates to a kind of roving frame sliver introduction pinch roll mechanism cleaning structure, including rack, several roots of active roller are arranged at the rack from rear to front interval, driven rubber roller is arranged on the upper side of active roller, and yarn strip is forwarded to the driven rubber roller with cooperation and is realized, the lower felt belt that the upper side of the active roller is arranged on the lower side of multiple active rollers and is abutted, the lower felt belt is driven to realize counterclockwise intermittent rotation by driving mechanism, the lower scraping plate for scraping the lower surface of the lower felt belt is arranged on the lower side of upper felt belt by driving mechanism, and cotton wool collecting groove is arranged on the lower side of the lower scraping plate. The cleaning structure is helpful to the cotton wool scraped on the lower felt belt and is collected, reduces manual cleaning.

Description

Technical Field

[0001] This utility model relates to a cleaning structure for a yarn feeding and clamping roller mechanism on a roving frame. Background Technology

[0002] The roving frame is the core spinning equipment for processing fiber slivers into roving. The traction mechanism of the roving frame is used to draw the fiber sliver 5-10 times thinner. However, during the fiber thinning process, lint and fibers can become entangled on the pinch rollers (roller rollers), affecting the thinning quality. Therefore, roving frames typically include a lint or fiber cleaning mechanism. However, the lint removed from the pinch rollers requires regular manual cleaning, which is not only labor-intensive but also negatively impacts the workshop's production environment if not cleaned promptly. Utility Model Content

[0003] The purpose of this invention is to provide a cleaning structure for the yarn feeding roller mechanism of a roving frame. This cleaning structure helps to collect the cotton lint scraped off the lower felt belt, reducing manual cleaning.

[0004] The technical solution of this utility model is as follows: a cleaning structure for a yarn feeding and conveying roller mechanism of a roving frame, including a frame, on which a plurality of active rollers are arranged at intervals from back to front, and a driven rubber roller is arranged on the upper side of each active roller to cooperate with it to realize the forward conveying of the yarn. A lower felt belt is arranged on the lower side of the multiple active rollers, the top surface of which abuts against the bottom surface of the active rollers. The lower felt belt is driven by a drive mechanism to realize counterclockwise intermittent rotation. A lower scraper is arranged on the lower side of the lower felt belt, driven by the drive mechanism to scrape off the lower surface of the felt belt, and a lower cotton wool collection groove is arranged on the lower side of the lower scraper.

[0005] Furthermore, a lower roller shaft is provided below the rearmost drive roller on the frame. Several axial grooves are provided at intervals along the circumferential direction on the circumferential surface of the lower roller shaft. An arc-shaped lower reversing member is fixed below the frontmost drive roller on the frame. An arc-shaped lower tensioning member is fixed below the rearmost lower reversing member on the frame. The lower felt belt is wrapped around the lower roller shaft, the lower reversing member, and the lower tensioning member.

[0006] Furthermore, the drive mechanism includes a rotating shaft driven by a motor, a circular cam eccentrically fixed on the rotating shaft, a crank sleeved on the circular cam, an extension arm extending forward at the upper end of the crank, a lower roller shaft fixed to a lower shaft rod rotatably connected to the frame, a ratchet A fixed on the lower shaft rod, a lower cover shell hinged to the front end of the extension arm covering the ratchet A and rotatably connected to the lower shaft rod, a pawl A hinged inside the lower cover shell with one end cooperating with the ratchet A, the pawl A being used to drive the lower roller shaft to rotate counterclockwise when the extension arm is pulled backward.

[0007] Furthermore, the frame is provided with lower guide grooves that are inclined upward at the rear end on both sides of the lower scraper. The two ends of the lower scraper are slidably engaged with the lower guide grooves. A connecting plate is fixed to the rear side of the lower scraper and hinged to the downward extension on the lower cover.

[0008] Furthermore, an upper felt belt is provided on the upper side of multiple driven rubber rollers, with its bottom surface abutting against the upper surface of the driven rubber rollers. The upper felt belt is driven by a drive mechanism through a transmission structure to achieve intermittent clockwise rotation. An upper scraper is provided on the upper side of the upper felt belt, driven by the transmission structure to scrape the upper surface of the upper felt belt. An upper cotton wool collection trough is provided in the area enclosed by the upper felt belt, located below the upper scraper.

[0009] Furthermore, an upper roller shaft is provided above the rearmost driven rubber roller on the frame. Several axial grooves are spaced along the circumferential direction on the circumferential surface of the upper roller shaft. An arc-shaped first upper reversing member is provided on the front side of the upper roller shaft. An arc-shaped second upper reversing member is provided above the frontmost driven rubber roller. An upper tensioning member that presses down the felt belt is provided above the space between two adjacent driven rubber rollers. The upper felt belt is wrapped around the upper roller shaft, the first upper reversing member, the second upper reversing member, and the upper tensioning member.

[0010] Furthermore, the transmission structure includes a push rod with its front end tilted upward and driven by a drive mechanism to achieve reciprocating oblique upward movement. The upper roller shaft is fixed on an upper shaft rod that is rotatably connected to the frame. A ratchet B is fixed on the upper shaft rod. An upper cover shell that covers the ratchet B and is rotatably connected to the upper shaft rod is hinged to the upper end of the push rod. A pawl B with one end cooperating with the ratchet B is hinged inside the upper cover shell. The pawl B is used to drive the upper roller shaft to rotate clockwise when the push rod is pushed forward.

[0011] Furthermore, the frame is provided with upper guide grooves that slope downwards at the rear end on both sides of the upper scraper. The two ends of the upper scraper are slidably engaged with the upper guide grooves, and a hinge plate that is hinged to the front of the upper cover is fixed on the rear side of the upper scraper.

[0012] Furthermore, the frame is provided with a guide roller for guiding the yarn between the active roller and the driven roller.

[0013] Compared with the prior art, the present invention has the following advantages: 1. This cleaning structure helps to remove fibers or lint adhering to the drive and driven rollers, and collects lint or fibers scraped off the lower felt belt by the lower scraper, reducing manual cleaning, lowering labor intensity, and helping to ensure a safe production environment in the workshop.

[0014] 2. Setting up a cotton lint collection trough below the upper scraper can also help collect the cotton lint or fibers scraped off the upper felt belt. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the fit between ratchet A, pawl A, lower roller shaft, and lower shaft of this utility model. Figure 3 This is a schematic diagram showing the engagement of ratchet B and pawl B in this utility model; In the diagram: 1-Driven roller; 2-Driven rubber roller; 3-Lower felt belt; 4-Lower scraper; 5-Lower cotton lint collection trough; 6-Lower roller shaft; 7-Lower reversing component; 8-Lower tensioning component; 9-Rotating shaft; 10-Circular cam; 11-Crank; 12-Extension arm; 13-Lower shaft; 14-Ratchet A; 15-Lower cover; 16-Pawl A; 17-Mounting plate; 18-Lower guide groove; 19-Connecting plate; 20-Upper felt belt; 21-Upper scraper; 22-Upper cotton lint collection trough; 23-Upper roller shaft; 24-First upper reversing component; 25-Second upper reversing component; 26-Upper tensioning component; 27-Push rod; 28-Fixing component; 29-Upper shaft; 30-Ratchet B; 31-Upper cover; 32-Pawl B; 33-Upper guide groove; 34-Hinge plate; 35-Guide roller. Detailed Implementation

[0016] To make the above-mentioned features and advantages of this utility model more easily understood, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.

[0017] refer to Figures 1 to 3 A cleaning structure for a roving frame's yarn feeding and conveying roller mechanism includes a frame. Several drive rollers 1 are spaced apart from back to front on the frame. Each drive roller has a driven rubber roller 2 above it, which cooperates to convey the yarn forward. A lower felt belt 3, with its top surface abutting against the bottom surface of the drive rollers, is located below the drive rollers to scrape cotton lint from the drive rollers onto the lower felt belt. The lower felt belt is driven by a drive mechanism to rotate intermittently counterclockwise. A lower scraper 4, driven by the drive mechanism, is located below the lower felt belt to scrape the lower surface of the felt belt. A lower cotton lint collection trough 5 is located below the lower scraper to collect the cotton lint scraped off by the lower scraper. A suction pipe connected to a suction device is located at the bottom of the lower cotton lint collection trough to suck away and collect the collected cotton lint, reducing manual cleaning.

[0018] In this embodiment, a lower roller shaft 6 is located below the rearmost drive roller on the frame. Several axial grooves are spaced along the circumferential direction on the circumferential surface of the lower roller shaft. An arc-shaped lower reversing member 7 is fixed below the frontmost drive roller on the frame, and an arc-shaped lower tensioning member 8 is fixed below the rear of the lower reversing member on the frame. The lower felt belt is wound around the lower roller shaft, the lower reversing member, and the lower tensioning member. The axial grooves increase the friction between the lower felt belt (ring-shaped) and the lower felt belt, enabling it to rotate intermittently counterclockwise. The lower tensioning member prevents the lower felt belt from being rotated by the drive roller; multiple lower tensioning members can be provided. The lower reversing member and the lower tensioning member are made of wear-resistant material.

[0019] In this embodiment, in order to intermittently drive the lower felt belt to rotate, the driving mechanism includes a rotating shaft 9 driven by a motor, a circular cam 10 eccentrically fixed on the rotating shaft, a crank 11 sleeved on the circular cam, an extension arm 12 extending forward at the upper end of the crank, the lower roller shaft fixed on a lower shaft rod 13 rotatably connected to the frame, a ratchet A14 fixed on the lower shaft rod, a lower cover 15 hinged to the front end of the extension arm covering the ratchet A and rotatably connected to the lower shaft rod, a pawl A16 hinged inside the lower cover, one end of which engages with the ratchet A, the pawl A being used to drive the lower roller shaft to rotate counterclockwise when the extension arm is pulled backward.

[0020] In this embodiment, mounting plates 17 are provided on both sides of the lower scraper on the frame. Each mounting plate is provided with a lower guide groove 18 that slopes upward at the rear end. The two ends of the lower scraper are slidably engaged with the lower guide groove. The upper surface of the lower scraper is provided with a wear-resistant scraping part that mates with the bottom surface of the lower felt belt, for example, made of PVC material. A connecting plate 19 is fixed to the rear side of the lower scraper, and the connecting plate is hinged to the downward extension on the lower cover.

[0021] When the lower cover pushes pawl A backward, the pressure between the lower scraper and the lower felt belt is reduced by the guide groove, allowing the lower felt belt to rotate under the drive of the lower roller. When the lower cover pushes pawl A forward, the lower felt belt does not rotate, and the lower scraper gradually presses against the lower felt belt and scrapes away the cotton fibers on the lower surface of the lower felt belt. As the rotating shaft rotates, the lower felt belt rotates a certain length, and the lower scraper scrapes a certain length, repeating this process.

[0022] In this embodiment, an upper felt belt 20 is provided above multiple driven rubber rollers, with its bottom surface abutting against the upper surface of the driven rubber rollers. The upper felt belt is driven by a drive mechanism via a transmission structure to rotate intermittently clockwise, so as to transfer the cotton wool adhering to the driven rubber rollers to the upper felt belt. An upper scraper 21, driven by a transmission structure, is provided above the upper felt belt to scrape the upper surface of the upper felt belt. An upper cotton wool collection trough 22 is provided under the upper scraper within the area enclosed by the upper felt belt to collect the fallen cotton wool. A suction pipe connected to a suction device can be provided at the bottom of the upper cotton wool collection trough to suck away the cotton wool.

[0023] In this embodiment, an upper roller shaft 23 is located above and behind the driven rubber roller on the rearmost side of the frame. Several axial grooves are spaced along the circumferential direction on the circumferential surface of the upper roller shaft. An arc-shaped first upper reversing member 24 is located in front of the upper roller shaft, and an arc-shaped second upper reversing member 25 is located above and in front of the foremost driven rubber roller. An upper tensioning member 26, which presses down on the upper felt belt, is located above and between two adjacent driven rubber rollers. The upper felt belt is wound around the upper roller shaft, the first upper reversing member, the second upper reversing member, and the upper tensioning member. The axial grooves increase the friction between the upper felt belt (ring-shaped) and the upper felt belt, enabling it to rotate intermittently counterclockwise. Multiple pressure plates are provided on the upper tensioning member to ensure that the upper felt belt is not rotated by the driven rubber roller. The first and second upper reversing members are made of wear-resistant material.

[0024] In this embodiment, the transmission structure includes a push rod 27 with its front end tilted upwards. The lower end of the push rod is fixed with a fixing member 28 that is fixed to the upper part of the crank, thereby driving the push rod to move back and forth obliquely upwards via the crank. The upper roller shaft is fixed to an upper shaft 29 that is rotatably connected to the frame. A ratchet B30 is fixed on the upper shaft. The upper end of the push rod is hinged with an upper cover 31 that covers the ratchet B and is rotatably connected to the upper shaft. A pawl B32, one end of which engages with the ratchet B, is hinged inside the upper cover. The pawl B is used to drive the upper roller shaft to rotate clockwise when the push rod is pushed forward and upward, thereby intermittently driving the upper felt belt to rotate.

[0025] In this embodiment, mounting plates are provided on both sides of the upper scraper on the frame. Each mounting plate is provided with an upper guide groove 33 that slopes downward at the rear end. The two ends of the upper scraper are slidably engaged with the upper guide groove. The lower surface of the upper scraper is provided with a wear-resistant scraping part that mates with the top surface of the upper felt belt, for example, made of PVC material. A hinge plate 34 is fixed to the rear side of the upper scraper and hinged to the front part of the upper cover.

[0026] When the upper cover pushes the pawl B forward, the pressure between the upper scraper and the upper felt belt is reduced by the guidance of the upper guide groove, allowing the upper felt belt to rotate under the drive of the upper roller shaft. When the upper cover pushes the pawl B backward, the upper felt belt does not rotate, and the upper scraper gradually presses against the upper felt belt and scrapes away the cotton fibers on its surface. As the shaft rotates, the upper felt belt rotates a certain length, and the upper scraper scrapes a certain length, repeating this process.

[0027] In this embodiment, the frame is provided with a guide roller 35 for guiding the yarn between the active roller and the driven rubber roller.

[0028] If the terms "first" and "second" are used in the above description to define the components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of distinguishing the components in the description. Unless otherwise stated, the above terms have no special meaning.

[0029] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting or welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0030] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0031] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0032] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A cleaning structure for a roving frame yarn feeding and pinching roller mechanism, comprising a frame, wherein a plurality of drive rollers are spaced apart from back to front on the frame, and a driven rubber roller is provided above each of the drive rollers to cooperate with and realize the forward feeding of the yarn, characterized in that, A lower felt belt is provided on the lower side of multiple active rollers, with its top surface abutting against the bottom surface of the active rollers. The lower felt belt is driven by a drive mechanism to rotate counterclockwise intermittently. A lower scraper is provided on the lower side of the lower felt belt, driven by the drive mechanism to scrape off the lower surface of the felt belt. A lower cotton lint collection groove is provided on the lower side of the lower scraper.

2. The cleaning structure of the roving frame yarn feeding and pinching roller mechanism according to claim 1, characterized in that, A lower roller shaft is located below the rearmost drive roller on the frame. Several axial grooves are spaced along the circumferential direction on the circumferential surface of the lower roller shaft. An arc-shaped lower reversing component is fixed below the frontmost drive roller on the frame. An arc-shaped lower tensioning component is fixed below the rear of the lower reversing component on the frame. The lower felt belt is wrapped around the lower roller shaft, the lower reversing component, and the lower tensioning component.

3. The cleaning structure of the roving frame yarn feeding and pinching roller mechanism according to claim 2, characterized in that, The drive mechanism includes a rotating shaft driven by a motor, a circular cam eccentrically fixed on the rotating shaft, a crank sleeved on the circular cam, an extension arm extending forward at the upper end of the crank, a lower roller shaft fixed to a lower shaft rod rotatably connected to the frame, a ratchet A fixed on the lower shaft rod, a lower cover shell hinged to the front end of the extension arm covering the ratchet A and rotatably connected to the lower shaft rod, a pawl A hinged inside the lower cover shell with one end cooperating with the ratchet A, the pawl A being used to drive the lower roller shaft to rotate counterclockwise when the extension arm is pulled backward.

4. The cleaning structure of the roving frame yarn feeding and pinching roller mechanism according to claim 3, characterized in that, The frame is provided with upwardly inclined lower guide grooves on both sides of the lower scraper. The two ends of the lower scraper are slidably engaged with the lower guide grooves. A connecting plate is fixed to the rear side of the lower scraper and hinged to the downward extension of the lower cover.

5. The cleaning structure of the roving frame yarn feeding and pinching roller mechanism according to claim 1, 2, 3 or 4, characterized in that, An upper felt belt is provided on the upper side of multiple driven rubber rollers, with its bottom surface abutting against the upper surface of the driven rubber rollers. The upper felt belt is driven by a drive mechanism through a transmission structure to achieve intermittent clockwise rotation. An upper scraper is provided on the upper side of the upper felt belt, driven by the transmission structure to scrape the upper surface of the upper felt belt. An upper cotton wool collection trough is provided in the area enclosed by the upper felt belt, located below the upper scraper.

6. The cleaning structure of the roving frame yarn feeding and pinching roller mechanism according to claim 5, characterized in that, An upper roller shaft is located above and behind the driven rubber roller on the rearmost side of the frame. Several axial grooves are spaced along the circumferential direction on the circumferential surface of the upper roller shaft. An arc-shaped first upper reversing member is located in front of the upper roller shaft. An arc-shaped second upper reversing member is located above and in front of the driven rubber roller on the foremost side. An upper tensioning member is located above and between two adjacent driven rubber rollers to press down the felt belt. The upper felt belt is wrapped around the upper roller shaft, the first upper reversing member, the second upper reversing member, and the upper tensioning member.

7. The cleaning structure of the roving frame yarn feeding and pinching roller mechanism according to claim 6, characterized in that, The transmission structure includes a push rod with its front end tilted upward and driven by a drive mechanism to achieve reciprocating oblique upward movement. The upper roller shaft is fixed on an upper shaft rod that is rotatably connected to the frame. A ratchet B is fixed on the upper shaft rod. An upper cover shell is hinged to the upper end of the push rod, covering the ratchet B and rotatably connected to the upper shaft rod. A pawl B with one end cooperating with the ratchet B is hinged inside the upper cover shell. The pawl B is used to drive the upper roller shaft to rotate clockwise when the push rod is pushed forward.

8. The cleaning structure of the roving frame yarn feeding and pinching roller mechanism according to claim 7, characterized in that, The frame is provided with upper guide grooves that slope downwards at the rear end on both sides of the upper scraper. The two ends of the upper scraper are slidably engaged with the upper guide grooves. A hinge plate that is hinged to the front of the upper cover is fixed to the rear side of the upper scraper.

9. The cleaning structure of the roving frame yarn feeding and pinching roller mechanism according to claim 1, characterized in that, The frame is equipped with guide rollers for guiding yarn between the active roller and the driven roller.

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