Wire cooling device and wire production method

Abstract

The present application relates to a wire cooling device and a wire production method, belonging to the field of technical wire production. The device comprises an inner cylinder and an outer cylinder coaxially sleeved on the outside of the inner cylinder. An annular cooling air blower is provided at one end of the outer cylinder, and the annular cooling air blower is located between the inner and outer cylinders. A guide ring plate is added between the annular cooling air blower and the inner cylinder, and the guide ring plate is spaced apart from the outer wall of the inner cylinder. An inlet plate and an outlet plate are provided at each end of the inner cylinder, and the wire enters and exits the inlet plate. Cooling holes are evenly distributed on the side wall of the inner cylinder in the areas of the inlet plate and the outlet plate. The present application has the effect of increasing the fluffiness of the wire and improving the stability of the wire during operation.

Description

Technical Field

[0001] The present application relates to the technical field of wire production, and in particular to a wire cooling device and a wire production method. Background Art

[0002] During the production process, the yarn needs to be cooled before the subsequent rollers and oiling. Currently, air cooling is commonly used to cool the yarn. However, the air inevitably impacts the yarn during the cooling process, which can affect the yarn's fluffiness and even cause it to become unstable during operation. Summary of the Invention

[0003] In order to enhance the fluffiness of the silk thread and improve the stability of the silk thread running process, the present application provides a silk thread cooling device and a silk thread production method.

[0004] In a first aspect, the present application provides a wire cooling device, which adopts the following technical solution:

[0005] A wire cooling device comprises an inner cylinder and an outer cylinder coaxially sleeved on the outer portion of the inner cylinder, an annular cooling air blower is provided at one end of the outer cylinder, and the annular cooling air blower is located between the inner cylinder and the outer cylinder; a guide ring plate is additionally provided between the annular cooling air blower and the inner cylinder, and the guide ring plate is spaced apart from the outer wall of the inner cylinder;

[0006] The two ends of the inner cylinder are respectively provided with an inlet plate and an outlet plate, and the wires enter from the inlet plate and exit from the outlet plate; the side wall of the inner cylinder is evenly provided with cooling holes in the area located at the inlet plate and the outlet plate.

[0007] By adopting the above technical solution, during the silk thread transportation process, the annular cooling air blower delivers cold air between the inner and outer cylinders, forming a low-pressure zone between the inner and outer cylinders. The silk thread is very fine, and even when running at high speed, the inside of the inner cylinder is still a normal pressure zone. Therefore, the high-temperature airflow inside the inner cylinder will enter between the inner and outer cylinders through the cooling holes and be discharged through the gap between the inner and outer cylinders. In addition, due to the presence of the guide ring, there is a gap between the cold air and the cooling holes, so that the cold air will not pass through and enter the normal pressure zone. Because the temperature of the cold air is low and the temperature inside the inner cylinder is high, the heat will be quickly dissipated between the inner and outer cylinders through radiation, thereby achieving rapid cooling of the silk thread inside the inner cylinder.

[0008] Because the inner cylinder's internal airflow is channeled through the cooling holes to cool the interior, wind pressure doesn't act on the yarn from the outside inward. Instead, it exerts a force from the inside out, creating tension within the yarn and making it more fluffy. Furthermore, the evenly spaced cooling holes and the yarn's position within the inner cylinder distribute the forces acting on it evenly, ensuring stability during yarn operation.

[0009] Optionally, the annular cooling fan is arranged on one end of the outer cylinder close to the line inlet plate.

[0010] By adopting the above technical solution, the wind direction and the direction of silk thread movement are the same, so that the outward force acting on the silk thread has a component in the direction of silk thread movement, avoiding reverse pulling and causing the silk thread to break.

[0011] Optionally, a flow limiting ring plate is provided on the outer wall of the inner cylinder; one end of the flow limiting ring plate is provided corresponding to the outlet plate, and the other end extends toward the adjacent end of the inner cylinder, and the other end is spaced apart from the outer wall of the inner cylinder.

[0012] Optionally, the flow limiting ring plate includes an arcuate ring plate fixed on the outer wall of the inner cylinder and a straight ring plate fixed on the end of the arcuate ring plate; the curvature of the cross section of the arcuate ring plate is convex toward the outer cylinder.

[0013] Optionally, the guide ring plate is extended from one end of the inner cylinder toward the other end, and one overhanging end of the guide ring plate corresponds to the line inlet plate.

[0014] Optionally, both ends of the outer tube are provided with outward-expanding bell mouths.

[0015] By adopting the above technical solution, the flow limiting ring plate and the flow guide ring plate are used in combination to reduce the impact of the wind pressure at both ends of the outer tube on the silk thread outside the inner tube. At the same time, in combination with the bell mouths at both ends of the outer tube, the stability of the silk thread running outside the inner tube can be further guaranteed. The setting of the arc-shaped ring plate makes the trajectory of the air flowing out of the inner tube through the cooling hole smoother, reducing the gas backflow caused by the rapid impact of the wind on the plate body. The setting of the straight ring plate and the flow guide plate form a gap between the flow direction of the cold air and the inner tube, making the flow route of the cold air clearer, avoiding the generation of stray flow, and thus preventing the cold air from entering the inner tube through the cooling hole or the end of the inner tube.

[0016] In a second aspect, the present application provides a silk thread production method, which adopts the following technical solution:

[0017] A silk thread production method comprises the following steps:

[0018] S1, PLA chips are spun, and the spinning is cooled by the yarn cooling device and then the PLA yarn is output; PET chips are spun and cooled by the yarn cooling device and then the PET yarn is output;

[0019] S2, PET yarn is fed into the zero roller, and air is blown to the PET yarn to form a network of dots arranged at intervals on the surface of the PET yarn, and the core yarn is output;

[0020] S3, PLA yarn is fed into a roller and wound around the core yarn to output a preliminary composite yarn;

[0021] S4, jetting the preliminary composite yarn to form spaced network points on the surface of the preliminary composite yarn, and outputting POY yarn;

[0022] S5, oiling the POY yarn and performing two-roller spinning to output the finished product.

[0023] Optionally, in S3, two PLA yarns are fed into one roller, and the two PLA yarns are wound around the PET yarn in opposite directions.

[0024] Optionally, in S4, the grid points on the POY filament and the grid points on the core filament are staggered.

[0025] By adopting the above technical solution, the generated finished product has the characteristic of being fluffy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] In the figure, 1, inner cylinder; 11, inlet plate; 12, outlet plate; 13, cooling hole; 2, outer cylinder; 21, guide ring plate; 22, flow limiting ring plate; 221, curved ring plate; 222, straight ring plate; 23, bell mouth; 3, annular cooling fan. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 This application is described in further detail.

[0029] The present invention discloses a wire cooling device, which includes an inner cylinder 1 and an outer cylinder 2 coaxially sleeved on the outer portion of the inner cylinder 1. Both ends of the outer cylinder 2 extend outwardly with a bell mouth 23. The wire enters from one end of the inner cylinder 1 and exits from the other end.

[0030] The inner tube 1 is equipped with an inlet plate 11 at one end for the incoming wires and an outlet plate 12 at the other end. The inlet plate 11 and the outlet plate 12 are located in the middle of the inner tube 1, creating a gap between the inlet plate 11 and the end of the inner tube 1 where the wires are fed, and between the outlet plate 12 and the end of the inner tube 1 where the wires are discharged. Multiple cooling holes 13 are evenly distributed in the area between the inlet plate 11 and the outlet plate 12.

[0031] A guide ring plate 21 and a flow-limiting ring plate 22 are respectively installed at each end of the outer cylinder 2, and both are located between the inner cylinder 1 and the outer cylinder 2. One end of the guide ring plate 21 corresponds to the end of the outer cylinder 2, and the other end corresponds to the inlet plate 11. An annular cooling fan 3 is fixed between the guide ring plate 21 and the outer cylinder 2, and is located at the end of the outer cylinder 2.

[0032] The current-limiting ring plate 22 comprises a curved ring plate 221 and a straight ring plate 222. One end of the curved ring plate 221 is fixed to the outer wall of the inner cylinder 1, corresponding to the outlet plate 12. The other end extends toward the end of the inner cylinder 1 and is located between the inner cylinder 1 and the outer cylinder 2. The curvature of the cross-section of the curved ring plate 221 bulges toward the outer cylinder 2. The straight ring plate 222 is fixed to the end of the curved ring plate 221, with the overhanging end of the straight ring plate 222 aligned with the end of the outer cylinder 2.

[0033] The aforementioned yarn cooling device operates as follows: the yarn enters the inner tube 1 from the inlet plate 11 and exits from the outlet plate 12. The cold air generated by the annular cooling fan 3 is blown between the inner wall of the outer tube 2 and the straight ring plate 222, within the limits of the inner wall of the outer tube 2 and the guide ring plate 21, and then blown out from the bell mouth 23. The heat inside the inner tube 1 is transferred to the cold air outside the inner tube 1 through thermal radiation, achieving rapid cooling of the yarn inside the inner tube 1. At the same time, the high flow of cold air outside the inner tube 1 creates a low-pressure zone outside the inner tube 1. Due to the excessive pressure inside the inner tube 1, the gas enters between the inner tube 1 and the outer tube 2 through the cooling holes 13, fluffing the yarn and rapidly cooling it.

[0034] The present application also discloses a method for producing a silk thread, comprising the following steps:

[0035] S1, PLA chips spinning, the spinning temperature is 200℃, and the PLA yarn is output after cooling; PET chips spinning, and the PET island yarn is output after cooling.

[0036] S2, PET island-in-the-sea yarn is fed into the zero roller, and air is blown to the PET island-in-the-sea yarn to form a spaced network of dots on the surface of the PET island-in-the-sea yarn, and the core yarn is output.

[0037] S3, two PLA yarns are fed into one roller and wound around the core yarn respectively. The winding directions of the two PLA yarns are opposite, and the preliminary composite yarn is output.

[0038] S4, jetting the preliminary composite yarn to form spaced network points on the surface of the preliminary composite yarn, and outputting a POY yarn; the grid points on the POY yarn are staggered with the grid points on the core yarn.

[0039] S5, oiling the POY yarn and performing two-roller spinning to output the finished product.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wire cooling device, characterized in that: The invention comprises an inner tube (1) and an outer tube (2) coaxially sleeved on the outside of the inner tube (1); an annular cooling air blower (3) is provided at one end of the outer tube (2), and the annular cooling air blower (3) is located between the inner tube (1) and the outer tube (2); a guide ring plate (21) is additionally provided between the annular cooling air blower (3) and the inner tube (1), and the guide ring plate (21) and the outer wall of the inner tube (1) are spaced apart; an inlet plate (11) and an outlet plate (12) are respectively provided at both ends of the inner tube (1), and the wires pass through the inlet plate (11) and pass through the outlet plate (12); cooling holes (13) are evenly opened on the side wall of the inner tube (1) in the area of ​​the inlet plate (11) and the outlet plate (12); the annular cooling air blower (3) is arranged on the outer tube (2) near the inlet plate (11); a flow limiting ring plate (22) is provided on the outer wall of the inner cylinder (1); one end of the flow limiting ring plate (22) is provided corresponding to the outlet plate (12), and the other end extends toward the adjacent end of the inner cylinder (1), and the other end is spaced apart from the outer wall of the inner cylinder (1); both ends of the outer cylinder (2) are provided with outward-expanding bell mouths (23); the flow limiting ring plate (22) includes an arcuate ring plate (221) fixed on the outer wall of the inner cylinder (1) and a straight ring plate (222) fixed to the end of the arcuate ring plate (221); the curvature of the cross section of the arcuate ring plate (221) is convex toward the outer cylinder (2); the flow guide ring plate (21) is extended from one end of the inner cylinder (1) toward the other end, and the cantilevered end of the flow guide ring plate (21) corresponds to the inlet plate (11).

2. A method for producing a wire using the wire cooling device according to claim 1, characterized in that: The method comprises the following steps: S1, spinning PLA slices, cooling the spun slices through a yarn cooling device, and then outputting PLA yarns; spinning PET slices, cooling the spun slices through a yarn cooling device, and then outputting PET yarns; S2, feeding the PET yarns through a zero roller, jetting the PET yarns so that network points arranged at intervals are formed on the surface of the PET yarns, and outputting core yarns; S3, feeding the PLA yarns through a single roller, winding the PLA yarns around the outside of the core yarns, and outputting preliminary composite yarns; S4, jetting the preliminary composite yarns so that network points arranged at intervals are formed on the surface of the preliminary composite yarns, and outputting POY yarns; S5, oiling the POY yarns, performing two-roller spinning, and outputting finished products.

3. A silk thread production method according to claim 2, characterized in that: In S3, two PLA yarns are fed into one roller, and the two PLA yarns are wound in opposite directions outside the PET yarn.

4. A silk thread production method according to claim 2, characterized in that: In S4, the grid points on the POY filaments are staggered with the grid points on the core filaments.

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