Drawing device for polyester-cotton yarn spinning processing

Abstract

The utility model relates to the field of polyester-cotton yarn preparation equipment, and particularly discloses a drawing device for polyester-cotton yarn spinning processing, which comprises a workbench, a plurality of material roll placing seats, a combining structure, a drafting structure and a material receiving roller, the combining structure comprises a shell, a plurality of polyester tensioning structures and two combining wheels, the polyester tensioning structure comprises a bottom plate, a rotating shaft, a sliding block and a tensioning wheel, the bottom plate is fixed to the bottom in the shell, a groove is formed in the bottom plate, the rotating shaft is located in the groove, one end of the rotating shaft is rotationally connected with the inner wall of the groove, the other end of the rotating shaft penetrates through the inner wall of the groove and the shell to be located outside the shell, and the rotating shaft is a threaded rod; the sliding block is in threaded connection with the rotating shaft through the threaded hole, the tensioning wheel is fixed to the upper portion of the sliding block, the polyester tensioning structure is arranged in the combining structure, the tightness degree of polyester yarn is adjusted by adjusting the position of the tensioning wheel, and therefore the polyester yarn is stretched to a certain degree, and when the polyester yarn and cotton are drafted after being mixed, the tension degree of the polyester yarn is adjusted. The problem of poor drafting or hard head after drafting due to the fact that the ductility of polyester yarn is larger than that of cotton can be solved.

Description

Technical Field

[0001] The utility model relates to the field of polyester-cotton yarn preparation equipment, in particular to a drawing device for polyester-cotton yarn spinning. Background Art

[0002] Polyester-cotton yarn is a blend of polyester and cotton. The main characteristics of polyester-cotton blended yarn are high breaking strength, which is generally more than 40% higher than that of cotton yarn of the same specification; good wear resistance, which is generally 1 times higher than that of cotton yarn of the same specification; small shrinkage, which is only about 0.5%, suitable for sewing chemical fiber fabrics and wrinkle-resistant high-end cotton fabrics, with flat stitches; good heat resistance, can adapt to 3000-4000r / min high-speed sewing machines, and ironing temperature is about 160℃; good softness and elasticity, suitable for sewing high-end chemical fiber fabrics.

[0003] During the preparation of polyester-cotton yarn, polyester and cotton need to be drawn together. The main steps of the drawing operation are combining-stretching-mixing-slivering. Combining refers to combining multiple raw strips together to improve the unevenness of the long segments of the strips. Drawing is to stretch and thin the strips to their original extent to improve the state of the fibers. Mixing is to further achieve the mixing of single fibers through repeated combining to ensure that the cotton blending composition of the strips is uniform. During the mixing process, it will be found that cotton and polyester of the same thickness have different ductility. After mixing, poor drafting, strip breakage and or hard ends will occur during the drawing operation. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the above-mentioned background technology and provides the following technical solutions:

[0005] A drawing device for polyester-cotton yarn spinning processing comprises a workbench, a plurality of material roll placement seats, a merging structure, a drafting structure and a take-up roller, wherein the material roll placement seat and the take-up roller are respectively fixed on the left and right sides of the upper end of the workbench, the merging structure and the drafting structure are sequentially located between the material roll placement seat and the take-up roller, the material roll placement seat comprises a polyester roll placement seat and a cotton roll placement seat, the number of the polyester roll placement seats is twice the number of the cotton roll placement seats, the merging structure comprises a shell, a plurality of polyester tensioning structures and two merging wheels, the shell is located on one side of the material roll placement seat and is provided with a plurality of polyester yarn feed ports and a plurality of cotton feed ports, the The number of polyester tensioning structures is consistent with the number of polyester yarn feed ports, and several of the polyester tensioning structures are located on one side of the polyester yarn feed port. The polyester tensioning structure includes a base plate, a rotating shaft, a slider and a tensioning wheel. The base plate is fixed to the bottom of the shell, a groove is provided on the base plate, the rotating shaft is located in the groove, one end of the rotating shaft is rotatably connected to the inner wall of the groove, and the other end of the rotating shaft passes through the inner wall of the groove and the shell and is located outside the shell. The rotating shaft is a threaded rod, a threaded hole is provided on the slider, the slider is threadedly connected to the rotating shaft through the threaded hole, and the tensioning wheel is fixed above the slider;

[0006] The shell is provided with a discharge hole on one side of the drafting structure. The two merging wheels are fixed in the shell and located on one side of the discharge hole. The two merging wheels are fitted together, and the merging wheels are thin in the middle and thick at both ends.

[0007] Preferably, a plurality of fixed wheels are provided in the housing, the number of the fixed wheels is the same as the number of the tensioning wheels, and the fixed wheels are located on one side of the tensioning wheel.

[0008] Preferably, one end of the rotating shaft outside the shell is connected to a rotating wheel.

[0009] Preferably, a line humidifying structure is provided between the merging structure and the stretching structure, and the line humidifying structure includes a water tank, a water pump, a sealed tank and an atomizing nozzle, the atomizing nozzle is located at the top of the sealed tank, two circular holes are respectively provided on both sides of the sealed tank, and a drain outlet is provided at the bottom of the sealed tank. The water tank and water pump are respectively located on one side of the workbench, the water pumping end of the water pump is connected to the water tank pipe, the water delivery end of the water pump is connected to the atomizing nozzle, and the water tank is connected to the drain outlet pipe.

[0010] Preferably, a rubber pad is provided in the circular hole.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model sets a polyester tensioning structure in the combined structure, and adjusts the tightness of the polyester yarn by adjusting the position of the tensioning wheel, so that the polyester yarn is stretched to a certain extent. When the polyester yarn and cotton are mixed and stretched, it can avoid the problem of poor stretching or hard head after the stretching is completed due to the ductility of the polyester yarn being greater than that of cotton.

[0013] 2. By setting a fixed wheel, the problem of line deviation of the polyester yarn after adjustment by the tensioning wheel can be avoided, and the line can be guided to the optimal angle for entering the merging wheel.

[0014] 3. By setting a line humidifying structure between the merging structure and the drafting structure, the merged polyester-cotton yarn can be sprayed by the atomizing nozzle in the line humidifying structure, so that the polyester-cotton yarn is cooled down and the problem of poor drafting caused by static electricity during drafting is prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the combined structure in the present utility model;

[0017] Figure 3 It is a cross-sectional view of the combined structure in the present utility model;

[0018] Figure 4 This is a structural diagram of the second embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the sealed tank structure in Example 2 of the present utility model.

[0020] In the figure: 1. Workbench; 2. Material roll placement seat; 2-1. Polyester roll placement seat; 2-2. Cotton roll placement seat; 3. Merging structure; 3-1. Shell; 3-11. Polyester yarn feed port; 3-12. Cotton feed port; 3-13. Discharge hole; 3-2. Polyester tensioning structure; 3-21. Bottom plate; 3-22. Rotating shaft; 3-23. Slider; 3-24. Tensioning wheel; 3-25. Groove; 3-26. Threaded hole; 3-3. Merging wheel; 3-4. Fixed wheel; 4. Drafting structure; 5. Rewinding roller; 6. Rotating wheel; 7. Line humidifying structure; 7-1. Water tank; 7-2. Water pump; 7-3. Sealing tank; 7-31. Round hole; 7-32. Drain port; 7-4. Atomizing nozzle; 8. Rubber pad. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it should be understood that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described in the terms "fixed connection" and "fixed arrangement" include but are not limited to "welding", "riveting", "adhesion" and "threaded connection". The terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device.

[0023] The directions or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0024] Example 1

[0025] Reference Figure 1-3A drawing device for polyester-cotton yarn spinning processing comprises a workbench 1, three material roll placement seats 2, a merging structure 3, a drafting structure 4 and a receiving roller 5. The material roll placement seat 2 and the receiving roller 4 are respectively fixed on the left and right sides of the upper end of the workbench 1, and the merging structure 3 and the drafting structure 4 are successively located between the material roll placement seat 2 and the receiving roller 5. The material roll placement seat 2 comprises two polyester roll placement seats 2-1 and a cotton roll placement seat 2-2. The merging structure 3 comprises a shell 3-1, two polyester tensioning structures 3-2 and two merging wheels 3-3. The shell 3-1 is located on one side of the material roll placement seat 2 and is provided with two polyester yarn feed ports 3-11 and a cotton feed port 3-12. The number of the polyester tensioning structures 3-2 is the same as that of the polyester yarn feed port 3-11. The two polyester tensioning structures 3-2 are the same as those of the polyester yarn feed port 3-11. The tightening structure 3-2 is located on one side of the polyester yarn feed inlet 3-11. The polyester tensioning structure 3-2 includes a base plate 3-21, a rotating shaft 3-22, a slider 3-23 and a tensioning wheel 3-24. The base plate 3-21 is fixed to the bottom of the shell 3-1. A groove 3-25 is provided on the base plate 3-21. The rotating shaft 3-22 is located in the groove 3-25. One end of the rotating shaft 3-22 is rotatably connected to the inner wall of the groove 3-25. The other end of the rotating shaft 3-22 passes through the inner wall of the groove 3-25 and the shell 3-1 and is located outside the shell 3-1. The rotating shaft 3-22 is a threaded rod. A threaded hole 3-26 is provided on the slider 3-23. The slider 3-23 is threadedly connected to the rotating shaft 3-22 through the threaded hole 3-26. The tensioning wheel 3-24 is fixed above the slider 3-23.

[0026] A discharge hole 3-13 is provided on the side of the shell 3-1 close to the drafting structure 4. Two merging wheels 3-3 are fixed in the shell 3-1 and are located on one side of the discharge hole 3-13. The two merging wheels 3-3 are fitted together, and the merging wheels 3-3 are thin in the middle and thick at both ends.

[0027] Preferably, two fixed wheels 3-4 are provided in the housing 3-1, and the fixed wheel 3-4 is located on one side of the tensioning wheel 3-24.

[0028] Preferably, the rotating shaft 3 - 22 is located at one end outside the shell 3 - 1 and is connected to the rotating wheel 6 .

[0029] In actual operation, during the polyester-cotton drawing process, before the polyester thread and the cotton thread are merged, the polyester thread will first pass through the tensioning wheel 3-24 and the fixed wheel 3-4, and the position of the tensioning wheel 3-24 is adjusted by the rotating wheel 6, so that the polyester thread is stretched. After the polyester thread and the cotton thread are mixed by the merging wheel 3-3, the elongation of the stretched polyester thread is similar to that of the cotton thread. When the thread is stretched through the drafting structure 4, the problem of poor drafting or hard head caused by the different elongation of the cotton thread and the polyester thread can be avoided.

[0030] Example 2

[0031] Reference Figure 4-5A line humidifying structure 7 is set between the merging structure 3 and the drawing structure 4. The line humidifying structure includes a water tank 7-1, a water pump 7-2, a sealing tank 7-3 and an atomizing nozzle 7-4. The atomizing nozzle 7-4 is located at the top of the sealing tank 7-3. Two circular holes 7-31 are respectively set on both sides of the sealing tank 7-3. A drain outlet 7-32 is set at the bottom of the sealing tank 7-3. The water tank 7-1 and the water pump 7-2 are respectively located on one side of the workbench 1. The water pumping end of the water pump 7-2 is connected to the water tank 7-1 pipeline, and the water delivery end of the water pump 7-2 is connected to the atomizing nozzle 7-4. The water tank 7-1 is connected to the drain outlet 7-32 pipeline, and a rubber pad 8 is set in the circular hole 7-31.

[0032] In actual operation, the surface of the combined polyester-cotton yarn is humidified by a humidifying structure before being stretched. The polyester-cotton yarn after cooling and humidification not only improves its elongation, but also solves the problems of poor stretching and hard ends caused by static electricity generated during the stretching process.

Claims

1. A drawing device for polyester-cotton yarn spinning, comprising a workbench (1), a plurality of roll placement seats (2), a merging structure (3), a drafting structure (4) and a receiving roller (5), wherein the roll placement seats (2) and the receiving roller (5) are respectively fixed on the left and right sides of the upper end of the workbench (1), and the merging structure (3) and the drafting structure (4) are sequentially located between the roll placement seats (2) and the receiving roller (5), characterized in that: The material roll placement seat (2) includes a polyester roll placement seat (2-1) and a cotton roll placement seat (2-2), the number of the polyester roll placement seats (2-1) is twice the number of the cotton roll placement seats (2-2), the merging structure (3) includes a shell (3-1), a plurality of polyester tensioning structures (3-2) and two merging wheels (3-3), the shell (3-1) is located on one side of the material roll placement seat (2) and is provided with a plurality of polyester yarn feed ports (3-11) and a plurality of cotton feed ports (3-12), the number of the polyester tensioning structures (3-2) is consistent with the number of the polyester yarn feed ports (3-11), the plurality of polyester tensioning structures (3-2) are located on one side of the polyester yarn feed port (3-11), the polyester tensioning structure (3-2) includes a bottom plate (3-21), a rotating shaft (3-22), a slider (3-23) and a tensioning wheel (3-24), the bottom plate (3-21) is fixed to the bottom of the housing (3-1), the bottom plate (3-21) is provided with a groove (3-25), the rotating shaft (3-22) is located in the groove (3-25), one end of the rotating shaft (3-22) is rotatably connected to the inner wall of the groove (3-25), the other end of the rotating shaft (3-22) passes through the inner wall of the groove (3-25) and the housing (3-1) and is located outside the housing (3-1), the rotating shaft (3-22) is a threaded rod, the slider (3-23) is provided with a threaded hole (3-26), the slider (3-23) is threadedly connected to the rotating shaft (3-22) through the threaded hole (3-26), and the tensioning wheel (3-24) is fixed above the slider (3-23); A discharge hole (3-13) is provided on one side of the shell (3-1) close to the drafting structure (4); two merging wheels (3-3) are fixed in the shell (3-1) and located on one side of the discharge hole (3-13); the two merging wheels (3-3) are fitted together; the merging wheels (3-3) are thin in the middle and thick at both ends.

2. A drawing frame device for polyester-cotton yarn spinning according to claim 1, characterized in that: A plurality of fixed wheels (3-4) are arranged in the housing (3-1), the number of the fixed wheels (3-4) being the same as the number of the tensioning wheels (3-24), and the fixed wheels (3-4) being located on one side of the tensioning wheel (3-24).

3. A drawing frame device for polyester-cotton yarn spinning according to claim 1, characterized in that: One end of the rotating shaft (3-22) located outside the housing (3-1) is connected to a rotating wheel (6).

4. A drawing frame device for polyester-cotton yarn spinning according to claim 1, characterized in that: A line humidifying structure (7) is provided between the merging structure (3) and the drawing structure (4), and the line humidifying structure comprises a water tank (7-1), a water pump (7-2), a sealing tank (7-3) and an atomizing nozzle (7-4). The atomizing nozzle (7-4) is located at the top of the sealing tank (7-3), two circular holes (7-31) are respectively provided on both sides of the sealing tank (7-3), and a drain outlet (7-32) is provided at the bottom of the sealing tank (7-3). The water tank (7-1) and the water pump (7-2) are respectively located on one side of the workbench (1), the water pump (7-2) is connected to the water tank (7-1) pipeline, the water pump (7-2) is connected to the atomizing nozzle (7-4), and the water tank (7-1) is connected to the drain outlet (7-32) pipeline.

5. A drawing frame device for polyester-cotton yarn spinning according to claim 4, characterized in that: A rubber pad (8) is provided in the circular hole (7-31).

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