Drying equipment for cotton spun yarn processing and production

Abstract

The invention relates to the technical field of cloth drying, and particularly discloses a drying device for cotton spun yarn processing and production, which comprises a drying box, a supporting roller group, a wrinkle removing roller, a winding device and an unwinding device, the supporting roller group comprises a plurality of upper supporting rollers and a plurality of lower supporting rollers, and the upper supporting rollers and the lower supporting rollers are alternately arranged in the left-right direction; cotton spun yarn is wound between the upper supporting roller and the lower supporting roller, the periphery of the lower supporting roller is sleeved with a flexible heating ring, a first supporting rod slides in the lower supporting roller in the vertical direction, a second supporting rod slides in the left-right direction, and a power device used for enabling the first supporting rod and the second supporting rod to alternately slide towards the axis of the lower supporting roller is further installed in the lower supporting roller. The distance between the lower supporting roller and the upper supporting roller is adjusted, so that the drying time of cotton-spun yarns with different thicknesses is different, the shape of the flexible heating ring is adjusted, the contact time of the cotton-spun yarns and the flexible heating ring is different, and the drying time of the cotton-spun yarns with different thicknesses is different.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric drying, and particularly to a drying device for cotton spinning processing and production. Background Art

[0002] Cotton spinning processing is a spinning process that processes cotton fibers into cotton yarns and cotton threads. This process is also applicable to spinning cotton-type chemical fiber yarns, medium-length fiber yarns, and blended yarns of cotton and other fibers. Cotton fabrics have good wearing properties, low prices, and relatively simple cotton spinning processes, so they occupy a primary position in the textile industry. The production process of cotton spinning mainly includes processes such as opening, carding, drawing, roving, spinning, and post-treatment. Among these processes, the drying process in the post-treatment stage has a decisive impact on the quality of cotton spinning.

[0003] A Chinese patent document with the authorization announcement number CN108317840B discloses a drying device, which includes a box body, a heating device and a cloth supporting device arranged in the box body; the heating device includes a heating component and an air flow component arranged at intervals in the box body, and the air flow blown out by the air flow component is blown into the box body after being heated by the heating component. This patent document uniformly heats the interior of the box body by arranging a heating device in the box body, so that when the fabric passes through the box body, the moisture on the fabric can be quickly evaporated; moreover, the air flow blown out by the air flow component can accelerate the transfer of heat on the heating component to the interior of the box body, and when the air flow blows over the fabric, the air flow can also take away the evaporated water vapor, accelerating the drying speed of the fabric; this rapid drying not only improves the drying rate of the fabric, but also reduces the energy required for drying the fabric and lowers the drying cost.

[0004] The above technical solution heats the fabric through the driven roller component on the cloth supporting device and takes away the steam inside the box body through the air flow. However, for fabrics of different thicknesses, the fabrics need to be dried for different lengths of time. If the fabric is relatively thick, it needs to be dried for a longer time to avoid the fabric remaining wet due to too short drying time. If the fabric is relatively thin, it needs to be dried for a shorter time to avoid fabric damage. When drying fabrics of different thicknesses in the above technical solution, the drying effect is not good. Summary of the Invention

[0005] The present invention provides a drying device for cotton spinning processing and production, aiming to solve the problem of poor drying effect when drying cotton yarns of different thicknesses in related technologies.

[0006] A drying device for cotton spinning processing production, comprising: a drying box, a support roller group, a wrinkle-removing roller, a winding device and an unwinding device. The support roller group includes an upper support roller and a lower support roller. A plurality of upper support rollers and lower support rollers are alternately arranged in the left-right direction. The cotton yarn is wound between the upper support roller and the lower support roller. A flexible heating ring is sleeved on the outer periphery of the lower support roller. A first support rod slides up and down in the lower support roller, and a second support rod slides left and right in the lower support roller. The ends of the first support rod and the second support rod are both abutted against the inner wall of the flexible heating ring. A power device for alternately sliding the first support rod and the second support rod toward the axis of the lower support roller is also installed in the lower support roller. When the first support rod extends, the flexible heating ring is vertically stretched to reduce the contact area between the flexible heating ring and the cotton yarn. When the second support rod extends, the flexible heating ring is horizontally stretched to increase the contact area between the flexible heating ring and the cotton yarn. A driving device for driving the flexible heating ring to move along its outer periphery is also provided on the lower support roller so that different positions of the flexible heating ring are in contact with the cotton yarn. The wrinkle-removing roller is slidably installed below the lower support roller. The cotton yarn passes through the gap between the wrinkle-removing roller and the lower support roller. When the wrinkle-removing roller rotates, the cotton yarn has a tendency to move toward the front and back sides.

[0007] The effect is that by adjusting the distance between the lower support roller and the upper support roller up and down, the residence time of the cotton yarn in the drying box is different, and the drying time of cotton yarns with different thicknesses is different. By adjusting the shape of the flexible heating ring, the contact time between the cotton yarn and the flexible heating ring is different, so as to dry cotton yarns with different thicknesses for different times.

[0008] Preferably, the power device includes a driving motor. A rotating disk is installed at the output end of the driving motor. Two sliding grooves one extending from the edge to the axis and two sliding grooves two extending from the axis to the edge are opened on the rotating disk. A first slider respectively sliding in the two sliding grooves one is fixedly arranged on each of the two first support rods. A second slider respectively sliding in the two sliding grooves two is fixedly arranged on each of the two second support rods. The positions of the first support rod and the second support rod are adjusted through the power device, and then the shape of the flexible heating ring is adjusted through the first support rod and the second support rod.

[0009] Preferably, the driving device includes a rotating motor. At least two telescopic rods are installed at the output end of the rotating motor. The telescopic rod includes a movable rod sliding along the axial direction of the sleeve. The end of the movable rod is connected to the inner wall of the flexible heating ring. The flexible heating ring is rotated along its outer periphery through the driving device so that different positions of the flexible heating ring are in contact with the cotton yarn.

[0010] Preferably, two sections of threads with opposite helix directions are arranged on the outer periphery of the wrinkle-removing roller. The threads extend from the middle of the wrinkle-removing roller to both ends. The rotation of the wrinkle-removing roller makes the fabric have a tendency to move toward both sides, so as to flatten the fabric.

[0011] Preferably, arc-shaped support rings are connected to the ends of the first support rod and the second support rod, and the flexible heating ring is made of shape memory metal; by providing the arc-shaped support rings, when the positions of the first support rod and the second support rod are adjusted, the flexible heating ring can be made to assume an elliptical shape as much as possible, so that the fabric fits more closely to the flexible heating ring.

[0012] Preferably, an electric lifting rod is provided on the lower support roller. When drying cotton yarns of different thicknesses, the lower support roller is driven to rise or fall by the electric lifting rod; by providing the electric lifting rod, the distance between the lower support roller and the upper support roller can be adjusted, thereby adjusting the time of the fabric in the drying box.

[0013] Preferably, an air outlet is provided at the bottom of the drying box. When the cotton yarn is relatively thick and the electric lifting rod drives the cotton yarn to descend, the cotton yarn is closer to the air outlet to assist in air-drying the cotton yarn.

[0014] Preferably, the winding device includes a winding roller, and an electric heating wire is provided on the inner wall of the winding roller. When one end of the cotton yarn is connected to the winding roller, the cotton yarn is dried by the winding roller.

[0015] Adopting the above technical solutions, the beneficial effects of the present invention are as follows: 1. When drying cotton yarns, the cotton yarns are wound between the upper support roller and the lower support roller. For relatively thin cotton yarns, the distance between the upper support roller and the lower support roller in the vertical direction is smaller. When the cotton yarns are wound at a fixed speed, the cotton yarns stay in the drying box for a shorter time. For relatively thick cotton yarns, the distance between the upper support roller and the lower support roller in the vertical direction is larger, and the cotton yarns stay in the drying box for a longer time, achieving a better drying effect for cotton yarns of different thicknesses; 2. The cotton yarns are heated by the flexible heating ring. When the cotton yarns are relatively thin, when the first support rod extends, the flexible heating ring is vertically stretched to reduce the contact time between the flexible heating ring and the cotton yarns. When the second support rod extends, the flexible heating ring is horizontally stretched to increase the contact time between the flexible heating ring and the cotton yarns. By adjusting the contact time between the cotton yarns and the flexible heating ring, a better drying effect can be achieved for cotton yarns of different thicknesses; 3. By moving the lower support roller downward in the drying box, the relatively thick cotton yarns can stay in the drying box for a longer time to achieve a better drying effect, and at the same time, moving the lower support roller downward closer to the air outlet further assists in drying the relatively thick cotton yarns. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the drying box, winding device and unwinding device of the present invention.

[0017] Figure 2 It is a schematic structural diagram inside the drying box of the present invention.

[0018] Figure 3 This is a schematic structural diagram of the state of the flexible heating ring when the support rod 1 of the present invention extends in the up and down direction.

[0019] Figure 4 This is a schematic structural diagram of the state of the flexible heating ring when the support rod 2 of the present invention extends in the left and right direction.

[0020] Figure 5 This is a schematic structural diagram of the power device of the present invention.

[0021] Figure 6 This is a schematic structural diagram of the first chute and the second chute on the rotating disk of the present invention.

[0022] Figure 7 This is a schematic structural diagram of the cooperation between the driving device and the flexible heating ring of the present invention.

[0023] Figure 8 This is a schematic structural diagram of the wrinkle-removing roller of the present invention.

[0024] Reference numerals: 1, drying box; 2, support roller group; 21, upper support roller; 22, lower support roller; 23, support rod 1; 24, support rod 2; 25, electric lifting rod; 3, flexible heating ring; 4, power device; 41, driving motor; 42, rotating disk; 43, first chute; 44, second chute; 45, first slider; 46, second slider; 5, driving device; 51, rotating motor; 52, telescopic rod; 6, wrinkle-removing roller; 7, air outlet. Detailed Description of the Invention

[0025] The following is a detailed description of the embodiments of the present invention, and the examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] As Figures 1 - 8 shown, a drying device for cotton spinning processing production includes a drying box 1, a support roller group 2, a wrinkle-removing roller 6, a winding device, and an unwinding device; when drying cotton yarn, the cotton yarn is wound and unwound by the winding device and the unwinding device respectively, the drying box 1 is located between the winding device and the unwinding device and dries the cotton yarn, and multiple groups of support roller groups 2 are arranged in the drying box 1 to extend the time of the cotton yarn in the drying box 1. When the winding speed is relatively fast, the tension on the cotton yarn is relatively large, and when the winding speed is relatively slow, the tension on the cotton yarn is relatively small. Therefore, whether it is thin or thick cotton yarn, the winding device always winds the cotton yarn at the same speed to facilitate controlling the tension of the cotton yarn during drying and reducing wrinkles.

[0027] The support roller group 2 includes an upper support roller 21 and a lower support roller 22. A plurality of upper support rollers 21 and lower support rollers 22 are alternately arranged in the left-right direction. The cotton yarn is wound between the upper support roller 21 and the lower support roller 22. The upper support rollers 21 are fixedly arranged inside the drying box 1, and the lower support rollers 22 are slidably arranged up and down inside the drying box 1. When drying the cotton yarn, if the cotton yarn is relatively thin, the distance between the upper support roller 21 and the lower support roller 22 is relatively close, and the cotton yarn stays in the drying box 1 for a relatively short time. If the cotton yarn is relatively thick, the distance between the upper support roller 21 and the lower support roller 22 is relatively far, and the cotton yarn stays in the drying box 1 for a relatively long time, and the drying of the cotton yarn is more thorough.

[0028] Specifically, an electric lifting rod 25 is arranged on the lower support roller 22. When drying cotton yarns of different thicknesses, the lower support roller 22 is driven to rise or fall by the electric lifting rod 25, so as to change the distance between the lower support roller 22 and the upper support roller 21. When the winding device winds the cotton yarn at the same speed, the time that cotton yarns of different thicknesses stay in the drying box 1 is different, thereby avoiding damage to thinner cotton yarns and incomplete drying of thicker cotton yarns.

[0029] The drying box 1 is heated inside by a hot air blower. The hot air blower has a plurality of air outlets 7, and the air outlets 7 are arranged at the bottom of the drying box 1. When the cotton yarn is relatively thick, when the electric lifting rod 25 drives the cotton yarn to descend, the cotton yarn is closer to the air outlets 7 to assist in air-drying the cotton yarn.

[0030] A flexible heating ring 3 is sleeved on the outer periphery of the lower support roller 22. A first support rod 23 slides up and down inside the lower support roller 22, and a second support rod 24 slides left and right inside the lower support roller 22. The ends of the first support rod 23 and the second support rod 24 are both abutted against the inner wall of the flexible heating ring 3. A power device 4 for alternately extending the first support rod 23 and the second support rod 24 is also installed inside the lower support roller 22. When drying relatively thin cotton yarn, the first support rod 23 extends, and the flexible heating ring 3 is in a vertical oval shape. The contact area between the cotton yarn and the flexible heating ring 3 is relatively small. When the cotton yarn moves at a fixed speed, the contact time between the cotton yarn and the flexible heating ring 3 is relatively short, avoiding damage to the fibers when drying the cotton yarn. When the thickness of the cotton yarn is relatively thick, when the second support rod 24 extends, the flexible heating ring 3 is in a horizontal oval shape. The contact area between the cotton yarn and the flexible heating ring 3 is relatively large. When the cotton yarn moves at a fixed speed, the contact time between the cotton yarn and the flexible heating ring 3 is relatively long, avoiding incomplete drying of the cotton yarn.

[0031] In a specific embodiment of the present invention, the power device 4 includes two sets of bidirectional electric telescopic rods. One set of bidirectional electric telescopic rods is connected to the first support rod 23, and the other set of bidirectional electric telescopic rods is connected to the second support rod 24. When the bidirectional electric telescopic rod drives the first support rod 23 to move towards the outer periphery of the lower support roller 22, the other set of bidirectional electric telescopic rods drives the second support rod 24 to move towards the axis of the lower support roller 22. Conversely, when the bidirectional electric telescopic rod drives the first support rod 23 to move towards the axis of the lower support roller 22, the other set of bidirectional electric telescopic rods drives the second support rod 24 to move towards the outer periphery of the lower support roller 22.

[0032] In other embodiments of the present invention, the power device 4 includes a driving motor 41. A rotating disk 42 is installed at the output end of the driving motor 41. Two sliding grooves one 43 extending from the edge towards the axis and two sliding grooves two 44 extending from the axis towards the edge are formed on the rotating disk 42. Sliders one 45 respectively sliding in the two sliding grooves one 43 are fixedly arranged on the two first support rods 23, and sliders two 46 respectively sliding in the two sliding grooves two 44 are fixedly arranged on the two second support rods 24; when the driving motor 41 rotates clockwise, the slider one 45 slides from the edge of the rotating disk 42 to the axis, thereby causing the first support rod 23 to slide towards the axis of the rotating disk 42. At this time, the slider two 46 slides from the axis of the rotating disk 42 to the edge, thereby causing the second support rod 24 to slide towards the edge of the rotating disk 42, and finally changing the flexible heating ring 3 from a vertical ellipse to a horizontal ellipse.

[0033] When the flexible heating ring 3 heats the cotton yarn, different parts of the flexible heating ring 3 are used to heat the cotton yarn to ensure that the flexible heating ring 3 always heats the cotton yarn at an appropriate temperature. If the fixed part of the flexible heating ring 3 is always in contact with the cotton yarn, it is difficult for the flexible heating ring 3 to heat the cotton yarn after the wet cotton yarn cools down the flexible heating ring 3, especially for relatively thick cotton yarn. Therefore, heating the cotton yarn with different parts of the flexible heating ring 3 can not only heat the cotton yarn, but also the rotation of the flexible heating ring 3 can apply a certain driving force to the cotton yarn.

[0034] Specifically, a driving device 5 is provided to drive the movement of the flexible heating ring 3. The driving device 5 includes a rotating motor 51. At least two telescopic rods 52 are installed at the output end of the rotating motor 51. The telescopic rod 52 includes a movable rod sliding along the axial direction of the sleeve, and the end of the movable rod is connected to the inner wall of the flexible heating ring 3; the rotating motor 51 drives the telescopic rod 52 to rotate, thereby driving the flexible heating ring 3 to move along its outer periphery. At this time, the movable rod slides in the sleeve, and the telescopic rod 52 continuously expands and contracts to adapt to the elliptical shape of the flexible heating ring 3.

[0035] In a preferred embodiment of the present invention, arc-shaped support rings are connected to the ends of the first support rod 23 and the second support rod 24. The flexible heating ring 3 is made of shape memory metal, such as nickel-titanium alloy. Using a metal material can also ensure good heat conductivity of the flexible heating ring 3. A heating element for heating the flexible heating ring 3 is further provided inside the lower support roller 22 (the heating element is a prior art and is not shown in the drawings of the present invention). When the flexible heating ring 3 is supported by the first support rod 23 and the second support rod 24, due to the material of the flexible heating ring 3, the portion not supported by the first support rod 23 and the second support rod 24 forms an arc, so as to finally make the flexible heating ring 3 form a shape close to an ellipse.

[0036] In other embodiments of the present invention, two threads with opposite helix directions are provided on the outer periphery of the wrinkle-removing roller 6, and the threads extend from the middle of the wrinkle-removing roller 6 to both ends. When winding cotton yarn, the cotton yarn is passed through the gap between the wrinkle-removing roller 6 and the lower support roller 22. At the initial position, the wrinkle-removing roller 6 is lowered to make the gap large enough to facilitate the passing of the cotton yarn. After the cotton yarn is wound between the upper support roller 21 and the lower support roller 22 and one end is connected to the winding device, the wrinkle-removing roller 6 is raised and brought into contact with the cotton yarn. When the flexible heating ring 3 heats the cotton yarn, the wrinkle-removing roller 6 rotates and makes the cotton yarn tend to move toward the front and back sides, thereby eliminating possible wrinkles generated during the drying process.

[0037] An electric telescopic rod is installed between the wrinkle-removing roller 6 and the lower support roller 22, and the electric telescopic rod drives the wrinkle-removing roller 6 to move up and down, thereby increasing or decreasing the gap between the wrinkle-removing roller 6 and the lower support roller 22.

[0038] The winding device includes a winding roller, and an electric heating wire is provided on the inner wall of the winding roller. When one end of the cotton yarn is connected to the winding roller, the cotton yarn is dried by the winding roller.

[0039] Working principle: When drying cotton yarn, the cotton yarn is wound between the upper support roller 21 and the lower support roller 22. For relatively thin cotton yarn, the distance between the upper support roller 21 and the lower support roller 22 in the up and down direction is small. When the cotton yarn is wound at a fixed speed, the residence time of the cotton yarn in the drying box 1 is short. For relatively thick cotton yarn, the distance between the upper support roller 21 and the lower support roller 22 in the up and down direction is large, and the residence time of the cotton yarn in the drying box 1 is long, so that a good drying effect can be achieved for cotton yarns of different thicknesses. At the same time, the cotton yarn is heated by the flexible heating ring 3. When the cotton yarn is relatively thin, when the first support rod 23 extends, the flexible heating ring 3 is vertically stretched to reduce the contact time between the flexible heating ring 3 and the cotton yarn. When the second support rod 24 extends, the flexible heating ring 3 is horizontally stretched to increase the contact time between the flexible heating ring 3 and the cotton yarn. By adjusting the contact time between the cotton yarn and the flexible heating ring 3, a good drying effect can be achieved for cotton yarns of different thicknesses. By moving the lower support roller 22 downward below the drying box 1, the relatively thick cotton yarn can stay in the drying box 1 for a longer time to achieve a good drying effect, and at the same time, the lower support roller 22 is moved downward closer to the air outlet 7 to further assist in drying the relatively thick cotton yarn.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A drying device for cotton spinning processing and production, comprising a drying box (1), a support roller group (2), a wrinkle removal roller (6), a winding device and an unwinding device, characterized in that: The support roller group (2) comprises an upper support roller (21) and a lower support roller (22), wherein a plurality of upper support rollers (21) and lower support rollers (22) are alternately arranged in the left-right direction, and the cotton yarn is wound between the upper support roller (21) and the lower support roller (22). The outer periphery of the lower support roller (22) is provided with a flexible heating ring (3), and a support rod 1 (23) is slidable in the upper and lower directions and a support rod 2 (24) is slidable in the left-right direction in the lower support roller (22). The support rod 1 (23) and the support rod 2 (24) are connected to each other. The ends are both in contact with the inner wall of the flexible heating ring (3); a power device (4) is also installed in the lower support roller (22) for making the support rod 1 (23) and the support rod 2 (24) slide alternately toward the axis of the lower support roller (22); when the support rod 1 (23) is extended, the flexible heating ring (3) is stretched vertically to reduce the contact area between the flexible heating ring (3) and the cloth; when the support rod 2 (24) is extended, the flexible heating ring (3) is stretched horizontally to increase the contact area between the flexible heating ring (3) and the cloth; The lower support roller (22) is also provided with a driving device (5) for driving the flexible heating ring (3) to move along its periphery so that different positions of the flexible heating ring (3) can contact the cotton yarn; The wrinkle removal roller (6) is installed below the lower support roller (22) in an upward and downward sliding manner, and the cotton yarn passes through the gap between the wrinkle removal roller (6) and the lower support roller (22). When the wrinkle removal roller (6) rotates, the cotton yarn has a tendency to move forward and backward.

2. The drying equipment for cotton spinning processing and production according to claim 1 is characterized in that: The power device (4) comprises a driving motor (41), the output end of the driving motor (41) is provided with a rotating disk (42), the rotating disk (42) is provided with two slide grooves 1 (43) extending from the edge to the axis, and two slide grooves 2 (44) extending from the axis to the edge, the two support rods 1 (23) are fixedly provided with sliders 1 (45) respectively sliding in the two slide grooves 1 (43), and the two support rods 2 (24) are fixedly provided with sliders 2 (46) respectively sliding in the two slide grooves 2 (44).

3. The drying equipment for cotton spinning processing and production according to claim 1 is characterized in that: The driving device (5) comprises a rotating motor (51), at least two telescopic rods (52) are mounted on the output end of the rotating motor (51), the telescopic rods (52) comprising movable rods that slide along the axial direction of the sleeve, and the ends of the movable rods are connected to the inner wall of the flexible heating ring (3).

4. The drying equipment for cotton spinning processing and production according to claim 1, characterized in that: The outer circumference of the wrinkle removal roller (6) is provided with two sections of threads with opposite rotation directions, and the threads extend from the middle of the wrinkle removal roller (6) to both ends.

5. The drying equipment for cotton spinning processing and production according to claim 1, characterized in that: The ends of the support rod 1 (23) and the support rod 2 (24) are both connected with arc-shaped support rings, and the flexible heating ring (3) is made of memory metal.

6. The drying equipment for cotton spinning processing and production according to claim 1, characterized in that: An electric lifting rod (25) is provided on the lower support roller (22). When drying cotton yarns of different thicknesses, the electric lifting rod (25) drives the lower support roller (22) to rise or fall.

7. The drying equipment for cotton spinning processing and production according to claim 6, characterized in that: An air outlet (7) is provided at the bottom of the drying box (1). When the cotton yarn is relatively thick, the electric lifting rod (25) drives the cotton yarn to descend, so that the cotton yarn is closer to the air outlet (7) to assist in air drying of the cotton yarn.

8. The drying equipment for cotton spinning processing and production according to any one of claims 1 to 7, characterized in that: The winding device comprises a winding roller, an inner wall of which is provided with an electric heating wire, and when one end of the cotton yarn is connected to the winding roller, the cotton yarn is dried through the winding roller.

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