A take-up device for a circular knitting machine

Abstract

This utility model provides a take-up and pull-out device for a circular knitting machine, relating to the technical field of circular knitting machines. It includes: a roll mechanism, a take-up bracket connected to the rear end of the roll mechanism, symmetrical soft brush cylinders at the upper end of the roll mechanism, a dust suction hood connecting the outer side of the soft brush cylinders to the take-up bracket, a dust suction pipe connected to the outer side of the dust suction hood, a negative pressure suction port opened on the inner groove surface of the dust suction hood, an adjusting frame plate connected to the right end of the take-up bracket via a connecting stud, a drive block connected to the inner side of the adjusting frame plate via a double-threaded screw, a small motor fixed to the right end of the drive block, a transmission cylinder shaft-connected to the lower end of the small motor, and a side scraper plate screwed onto the outer surface of the transmission cylinder. This utility model solves the problem in the prior art where, during the pulling of knitted fabrics on a circular knitting machine, fiber debris adhering to the fabric surface is easily pressed into the fabric surface by multiple rollers, affecting the fabric production quality.

Description

Technical Field

[0001] This utility model relates to the field of circular knitting machines, specifically to a pull-and-wind device for a circular knitting machine. Background Technology

[0002] In the production of knitted fabrics using a circular knitting machine, a pull-and-take device is required to draw the formed knitted fabric from the looping area and roll it into a certain shape to ensure the smooth progress of the knitting process. A search revealed an existing technology (publication number: CNCN202322407752.7) for a pull-and-take device on a circular knitting machine. The document describes that "during the winding process, the fabric is stretched to both sides by the interaction between the fabric and multiple rollers, thereby preventing wrinkles and other defects during winding and improving fabric quality." However, in the existing technology, when knitting fabrics are pulled on a circular knitting machine, fiber debris adhering to the fabric surface is easily pressed into the fabric surface by multiple rollers, affecting the fabric production quality. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a pulling and taking device for a circular knitting machine is provided to solve the problem that, in the prior art, when a circular knitting machine pulls a knitted fabric, fiber debris attached to the fabric surface is easily pressed into the fabric surface by multiple rollers, affecting the fabric production quality.

[0004] To achieve the above objectives, a take-up device for a circular knitting machine is provided, comprising: a take-up mechanism, wherein a take-up bracket is connected to the rear end of the take-up mechanism.

[0005] The upper end of the winding mechanism has symmetrical soft brush tubes. The outer side of the soft brush tubes is connected to the winding bracket through a dust suction hood. The outer side of the dust suction hood is connected to a dust suction pipe. The inner groove surface of the dust suction hood has a negative pressure suction port. The right end of the winding bracket is connected to an adjusting frame plate through a connecting stud. The inner side of the adjusting frame plate is connected to a drive block through a double threaded screw. The right end of the drive block is fixed with a small motor. The lower end of the small motor is shaft-connected to a transmission cylinder. The outer surface of the transmission cylinder is screwed with a side scraper plate.

[0006] Furthermore, the front end of the support bracket is symmetrically connected to two sets of lower feeding rollers, and upper feeding rollers are distributed on the upper end of the lower feeding rollers. A fixing frame is connected to the side end of the upper feeding rollers.

[0007] Furthermore, the rear end of the fixed frame is movably connected to the winding bracket groove via a first spring, the soft brush cylinder is located at the middle of the distance between the two sets of feeding lower rollers, and a transparent partition is fixed to the lower end of the feeding lower roller.

[0008] Furthermore, a dust collection hood is connected to the upper end of the take-up bracket via an electric push rod, and a distance sensor is fixed to the left side of the dust collection hood.

[0009] Furthermore, the surface of the negative pressure adsorption port is in contact with the bristles of the soft brush tube; and the negative pressure adsorption port is connected to the dust collection pipe.

[0010] Furthermore, a double-threaded screw is installed on the inner bearing of the segment frame plate; and two sets of drive blocks are connected to the screw face of the double-threaded screw, and flattening rollers are distributed at the lower end of the side scraper plate.

[0011] Furthermore, the right side roller of the flattening roller is connected to a fixing plate via a second spring. The fixing plate is welded and fixed to the right end face of the winding bracket. A guide roller is provided at the lower left end of the flattening roller.

[0012] The beneficial effects of this utility model are as follows: the traction and winding device of the circular knitting machine utilizes a soft brush cylinder to roll into contact with the upper and lower surfaces of the circular knitting fabric conveyed by the feeding roller. This allows the bristles of the soft brush cylinder to adsorb and remove fiber debris from the fabric surface. Then, the fiber debris adsorbed by the dust suction hood is sucked away through the negative pressure suction port of the dust suction hood, thus realizing a pre-cleaning function. This facilitates the cleaning and removal of fiber debris from the fabric surface before winding, effectively preventing fiber debris from being pressed into the fabric surface during the winding process, ensuring neat fabric winding. A small motor drives multiple sets of side scraping plates on the transmission cylinder to rotate, scraping the sides of the fabric during traction and flattening. Then, the flattening rollers flatten the fabric, preventing edge curling and wrinkling during the traction and winding process, ensuring the flatness of the fabric wound by the traction and winding device, and improving the winding effect of the traction and winding device. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the pull-and-wind device of a circular knitting machine according to an embodiment of the present invention.

[0014] Figure 2 This is a front view cross-sectional structural diagram of the pulling and winding device of the circular knitting machine according to an embodiment of the present invention.

[0015] Figure 3 This is a front view cross-sectional connection structure diagram of the side scraper plate according to an embodiment of the present utility model.

[0016] Figure 4 This is a top view of the side scraping plate according to an embodiment of the present invention.

[0017] In the diagram: 1. Roller mechanism; 11. Winding bracket; 12. Electric actuator; 13. Transparent partition; 14. Guide roller; 15. First spring; 2. Lower feed roller; 21. Upper feed roller; 22. Fixing frame; 3. Soft brush tube; 31. Dust hood; 32. Distance sensor; 33. Dust suction pipe; 34. Negative pressure suction port; 4. Side scraper plate; 41. Adjusting frame plate; 42. Small motor; 43. Transmission cylinder; 44. Connecting stud; 45. Double threaded lead screw; 46. Drive block; 5. Flattening rollers; 51. Fixing plate; 52. Second spring. Detailed Implementation

[0018] Reference Figures 1 to 4 As shown, this utility model provides a take-up and take-up device for a circular knitting machine, including: a take-up mechanism 1, and a take-up bracket 11 connected to the rear end of the take-up mechanism 1.

[0019] The upper end of the winding mechanism 1 has symmetrical soft brush cylinders 3. The outer side of the soft brush cylinders 3 is connected to the winding bracket 11 through a dust suction hood 31. The outer side of the dust suction hood 31 is connected to a dust suction pipe 33. The inner groove surface of the dust suction hood 31 is provided with a negative pressure suction port 34. The right end of the winding bracket 11 is connected to an adjusting frame plate 41 through a connecting stud 44. The inner side of the adjusting frame plate 41 is connected to a drive block 46 through a double threaded screw 45. The right end of the drive block 46 is fixed with a small motor 42. The lower end of the small motor 42 is shaft-connected to a transmission cylinder 43. The outer cylinder surface of the transmission cylinder 43 is screwed with a side scraper plate 4.

[0020] First, the fabric knitted by the circular knitting machine is drawn into the take-up and take-up device through the lower feed roller 2 and the upper feed roller 21. During the horizontal traction process of the lower feed roller 2 and the upper feed roller 21, the upper and lower surfaces of the fabric roll and adsorb the bristles of the soft brush cylinder 3 to remove the attached fiber debris. The fiber debris adsorbed by the bristles of the soft brush cylinder 3 rotates to the negative pressure adsorption port 34 and is sucked out and sent into the external vacuum cleaner. After cleaning, the fabric is conveyed downward along the lower feed roller 2 and guided by the guide roller 14 to the winding mechanism 1 for winding. During the downward conveying of the fabric along the lower feed roller 2, the small motor 42 drives the side scraper plate 4 to rotate and scrape the two sides of the fabric flat. After the edges are scraped, the fabric enters the flattening roller 5 for flattening before winding. This helps to prevent the fabric from curling or wrinkling during the take-up and take-up process, ensuring the flatness of the fabric wound by the take-up and take-up device and improving the winding effect of the take-up and take-up device.

[0021] In this embodiment, two sets of lower feeding rollers 2 are symmetrically connected to the front end of the winding bracket 11. Upper feeding rollers 21 are distributed on the upper end of the lower feeding rollers 2, and a fixing frame 22 is connected to the side end of the upper feeding rollers 21. The rear end of the fixing frame 22 is movably connected to the groove of the winding bracket 11 through a first spring 15. The soft brush cylinders 3 are located at the middle of the distance between the two sets of lower feeding rollers 2, and a transparent partition 13 is fixed to the lower end of the lower feeding rollers 2.

[0022] In a preferred embodiment, the lower feed roller 2 and the upper feed roller 21 are driven by an electric motor to rotate and traction the fabric. The elasticity of the first spring 15 allows for easy adjustment of the distance between the lower feed roller 2 and the upper feed roller 21, facilitating the transport of fabrics of different thicknesses. The transparent partition 13 facilitates the separation of the fabric's traction area and winding area, preventing fiber debris from falling from the upper traction area to the winding area during the traction process.

[0023] In this embodiment, a dust collection hood 31 is connected to the upper end of the take-up bracket 11 via an electric push rod 12, and a distance sensor 32 is fixed to the left side of the dust collection hood 31. The groove surface of the negative pressure suction port 34 is in contact with the bristles of the soft brush cylinder 3; and the negative pressure suction port 34 is connected to the suction pipe 33.

[0024] In a preferred embodiment, the electric actuator 12 is connected to the dust collection hood 31 at the upper end of the fabric, facilitating the adjustment of the position of the soft-bristle brush cylinder 3 on the upper surface of the fabric. The dust collection hood 31 at the lower end of the fabric is fixedly connected to the roll-up bracket 11. The suction pipe 33 is connected to an external vacuum cleaner to remove fiber debris adhering to the bristles of the rotating soft-bristle brush cylinder 3, preventing excessive fiber debris from affecting the adsorption effect of the soft-bristle brush cylinder 3.

[0025] In this embodiment, a double-threaded lead screw 45 is installed on the inner bearing of the adjusting frame plate 41; and two sets of drive blocks 46 are connected to the rod surface of the double-threaded lead screw 45. Flattening rollers 5 are distributed at the lower end of the side scraper plate 4. The right roller body of the flattening roller 5 is connected to a fixing plate 51 through a second spring 52. The fixing plate 51 is welded and fixed to the right end face of the winding bracket 11. A guide roller 14 is provided at the lower left end of the flattening roller 5.

[0026] In a preferred embodiment, the column head axially connected to the front end of the double-threaded screw 45 facilitates the rotation of the double-threaded screw 45. When the double-threaded screw 45 rotates, the drive block 46 converts the rotational motion of the double-threaded screw 45 into linear motion, thereby driving the side scraper plate 4 to move horizontally back and forth, making it easy to adjust the position of the side scraper plate 4. The side scraper plate 4 moves to the side edge of the fabric to scrape the side edge of the rolled-up fabric. The side-scraped fabric moves down into the flattening roller 5 for pressing, thereby achieving the flattening treatment of the fabric before winding and ensuring the flatness of the fabric wound by the traction winding device.

[0027] This utility model relates to a traction and take-up device for a circular knitting machine. It effectively solves the problem in existing circular knitting machines where fiber debris adhering to the fabric surface is easily pressed into the fabric surface by multiple rollers during traction, affecting fabric production quality. This traction and take-up device, with its pre-cleaning function, facilitates the removal of fiber debris from the fabric surface before take-up, effectively preventing fiber debris from being pressed into the fabric surface during take-up. This ensures neat fabric winding, prevents edge curling and wrinkling during traction and take-up, guarantees the flatness of the fabric wound by the traction and take-up device, and improves the take-up effect of the traction and take-up device. It is suitable for traction and take-up devices on circular knitting machines.

Claims

1. A draw take down device for a circular knitting machine, comprising: A winding mechanism (1), wherein a winding bracket (11) is connected to the rear end of the winding mechanism (1), characterized in that: The upper end of the winding mechanism (1) has symmetrical soft brush cylinders (3). The outer side of the soft brush cylinders (3) is connected to the winding bracket (11) through a dust suction hood (31). The outer side of the dust suction hood (31) is connected to a dust suction pipe (33). The inner groove surface of the dust suction hood (31) is provided with a negative pressure suction port (34). The right end of the winding bracket (11) is connected to an adjusting frame plate (41) through a connecting stud (44). The inner side of the adjusting frame plate (41) is connected to a drive block (46) through a double threaded screw (45). The right end of the drive block (46) is fixed with a small motor (42). The lower end of the small motor (42) is shaft-connected to a transmission cylinder (43). The outer cylinder surface of the transmission cylinder (43) is screwed with a side scraper plate (4).

2. A drawing and winding device for a knitting machine according to claim 1, characterized in that The front end of the winding bracket (11) is symmetrically connected to two sets of lower feeding rollers (2), and the upper feeding rollers (21) are distributed on the upper end of the lower feeding rollers (2). The side end of the upper feeding rollers (21) is connected to a fixing frame (22).

3. The draw and take-up device for a circular knitting machine according to claim 2, characterized in that, The rear end of the fixed frame (22) is movably connected to the groove of the winding bracket (11) via the first spring (15). The soft brush cylinder (3) is located in the middle of the distance between the two sets of feeding rollers (2). A transparent partition (13) is fixed at the lower end of the feeding roller (2).

4. The draw and take-up device for a circular knitting machine according to claim 1, characterized in that, The upper end of the take-up bracket (11) is connected to a dust suction hood (31) via an electric push rod (12), and a distance sensor (32) is fixed on the left side of the dust suction hood (31).

5. The draw and take-up device for a circular knitting machine according to claim 1, characterized in that, The groove surface of the negative pressure adsorption port (34) is in contact with the bristles of the soft brush tube (3); and the negative pressure adsorption port (34) is connected to the dust suction pipe (33).

6. The draw and take-up device for a circular knitting machine according to claim 1, characterized in that, The inner bearing of the adjusting frame plate (41) is equipped with a double threaded screw (45); and the screw surface of the double threaded screw (45) is connected to two sets of drive blocks (46), and the lower end of the side scraper plate (4) is distributed with flattening rollers (5).

7. The draw and take-up device for a circular knitting machine according to claim 6, characterized in that, The right side of the flattening roller (5) is connected to a fixing plate (51) via a second spring (52). The fixing plate (51) is welded and fixed to the right end face of the winding bracket (11). A guide roller (14) is provided at the lower left end of the flattening roller (5).

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