Wool ammonia cheese dyeing yarn pressing disc combination device capable of adjusting pressure
By using an adjustable pressure yarn pressing disc assembly during the dyeing process of wool-ammonia packaged yarn, the problems of yarn misalignment and dye liquor short circuit were solved, achieving uniform dyeing and high-quality dyeing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LUJIANA TEXTILE & GARMENT CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-15
AI Technical Summary
During the dyeing process of wool and spandex packaged yarn, the yarn diameter shrinks due to the difference in shrinkage rates between wool and spandex fibers, the gaps between yarn layers are compressed, and the impact force of the dye liquor causes the yarn to shift, forming a spiral misalignment, resulting in short circuits in the dye liquor and color differences. The yarn is also prone to deformation, slippage, or shedding during the dyeing process.
The device employs an adjustable pressure yarn pressing disc assembly for dyeing wool and ammonia packaged yarns, including an arc-shaped disc and an arc-shaped double disc. By adjusting the insertion method within the annular gap between the yarn tube end and the dye core of the dyeing machine, the yarn end is lifted or pressed down. Combined with the pressure adjustment of the gasket, the device prevents yarn deformation and shedding, ensuring uniform yarn density.
It effectively prevents yarn from deforming, slipping, or falling off during the dyeing process, ensuring dyeing uniformity, improving dyeing quality, and avoiding color difference.
Smart Images
Figure CN224243452U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of yarn dyeing technology, specifically to an adjustable pressure yarn pressing disc assembly for dyeing wool and ammonia packaged yarn. Background Technology
[0002] During the dyeing process of wool-spandex packaged yarn, as the dye bath temperature increases, the shrinkage rate of both wool and spandex yarns increases accordingly, reaching 8%-12%, with a difference rate of about 5%. This results in a reduction in the diameter of the packaged yarn and a compression rate between yarn layers exceeding 10%. The alternating forward and reverse circulation of the dye bath in the dyeing machine pump causes displacement of the outer yarn layer, forming a "spiral" misalignment. If this misalignment is not corrected in time, the dye bath will concentrate and flow out from the relatively thinner upper yarn layer, forming a so-called "dye bath short circuit," resulting in a severe color difference between the tube end and other parts.
[0003] During the dyeing process of wool and spandex packaged yarn, as the dye liquor temperature increases, the shrinkage rate of both wool and spandex fibers increases, reaching 8%-12%, with a difference in shrinkage rate of approximately 5%. This leads to a reduction in the diameter of the packaged yarn and a compression rate exceeding 10% between yarn layers. When the dyeing machine pump alternates between forward and reverse circulation, the impact force of the dye liquor causes displacement of the outer yarn layer, forming a "spiral" misalignment. If this misalignment is not corrected in time, the dye liquor will concentrate and flow out from the thinner upper yarn layer, creating a "dye liquor short circuit," resulting in a severe color difference between the tube end and other parts.
[0004] In addition, during yarn dyeing, the yarn needs to be wound onto a high-temperature resistant yarn tube with uniformly distributed small holes according to process requirements. The dye core of the dyeing machine is a hollow stainless steel flower tube with uniformly distributed holes on its surface. The dye liquor enters from the lower end of the flower tube under pressure from a circulating pump and flows out through the holes. When the yarn package is fixed to the yarn frame, the ends of the yarn tube are usually pressed tightly together, and the uppermost end is fixed with a yarn pressing plate. During the dyeing process, the dye liquor penetrates the dye core, the yarn tube, and the yarn in sequence to achieve dyeing of the yarn. Because the length of the yarn tube is greater than the width of the yarn winding (to prevent the yarn from slipping off), and the yarn tubes are tightly connected while the ends of the yarn are not fixed, gaps will form. This causes the ends of the yarn to easily deform, slip, or even partially fall off during the dyeing process. Summary of the Invention
[0005] This utility model addresses the needs and shortcomings of current technological development by providing an adjustable pressure yarn pressing disc assembly for dyeing wool and ammonia packaged yarn.
[0006] This utility model discloses an adjustable pressure yarn pressing disc assembly for dyeing wool-ammonia packaged yarn. The technical solution adopted to solve the above-mentioned technical problems is as follows:
[0007] An adjustable pressure yarn pressing disc assembly for dyeing wool and apron yarns, comprising an arc-shaped disc fitted onto the dye core of a dyeing machine, or an arc-shaped disc and an arc-shaped double-disc disc fitted onto the dye core of a dyeing machine, wherein:
[0008] The arc-shaped disc has an arc-shaped structure with its opening facing upwards or downwards. A through hole is opened at the center of the arc-shaped disc, and the diameter of the through hole is adapted to the outer diameter of the yarn tube. The yarn tube is fitted downwards onto the dye core of the dyeing machine, and the surface of the yarn tube is wound with yarn. When the arc-shaped disc is fitted onto the dye core of the dyeing machine through the through hole, the end of the yarn tube is inserted downwards or upwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core of the dyeing machine. The arc-shaped disc lifts up the bottom of the yarn wound on the surface of the yarn tube or presses down the top of the yarn wound on the surface of the yarn tube.
[0009] The arc-shaped double disc includes arc-shaped discs arranged symmetrically on the top and bottom, with the upper arc-shaped disc opening upwards and the lower arc-shaped disc opening downwards. When the arc-shaped double disc is fitted onto the dye core of the dyeing machine through the through hole and is located between two adjacent yarn tubes, the end of the lower yarn tube is inserted upwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core, and the end of the upper yarn tube is inserted downwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core.
[0010] Optionally, the yarn tube surface is uniformly provided with dyeing holes, and the yarn is wound around the yarn tube surface and covers all the dyeing holes; after the yarn is wound around the yarn tube surface, the winding width of the yarn on the yarn tube is less than the length of the yarn tube, and the end of the yarn tube that is not wound by the yarn is inserted into the annular gap formed between the inner wall of the through hole of the arc-shaped double disc and the outer surface of the dye core.
[0011] Optionally, the arc-shaped disk includes an integrally connected arc-shaped plate and a round tube. A through hole is provided at the center of the arc-shaped plate. The central axis of the through hole coincides with the central axis of the round tube, and the inner diameter of the round tube is not less than the diameter of the through hole.
[0012] Preferably, the surface of the arc-shaped plate is provided with multiple small holes for dye solution.
[0013] Alternatively, the arc-shaped double-disc includes symmetrically arranged arc-shaped discs, with the upper arc-shaped disc and the lower arc-shaped disc sharing a circular tube and forming an integral structure through the circular tube.
[0014] Preferably, the yarn pressing disc assembly for dyeing wool and ammonia packaged yarn also includes a washer, which is fitted onto the dye core of the dyeing machine and inserted into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core of the dyeing machine.
[0015] Preferably, the arc-shaped disk is made of 316L stainless steel plate.
[0016] The adjustable pressure yarn pressing disc assembly for dyeing wool-ammonia packaged yarn of this utility model has the following advantages compared with the prior art:
[0017] 1. This utility model can protect the ends of the yarn wound on the surface of the yarn tube, preventing the yarn layer from deforming, slipping or even partially falling off during the dyeing process. It solves the problem of misalignment of the yarn layer at the end of the yarn tube during the dyeing of wool and ammonia packaged yarn, making the dyed yarn more uniform in color, improving the dyeing quality and facilitating subsequent processing.
[0018] 2. This utility model can adjust the pressure of the arc-shaped disc and the arc-shaped double disc on the yarn end face by adjusting the number of washers and changing the end distance between two adjacent yarn tubes, so that the yarn density meets the dyeing requirements. Attached Figure Description
[0019] Appendix Figure 1 This is a cross-sectional structural diagram of the combination of an arc-shaped disk and a yarn tube with yarn wound on its surface in Embodiment 1 of this utility model;
[0020] Appendix Figure 2 This is a cross-sectional structural diagram of the combination of an arc-shaped disk, an arc-shaped double-disc disk, and a yarn tube with yarn wound on its surface in Embodiment 2 of this utility model.
[0021] The information indicated by the labels in the attached diagram is as follows:
[0022] 1. Arc-shaped disc, 2. Arc-shaped double-disc disc, 3. Yarn tube, 4. Yarn, 5. Dyeing hole,
[0023] 6. Curved plate; 7. Round tube; 8. Dye core;
[0024] a, b, c, and d represent the specific codes for different arc-shaped disks, and e represents the specific code for an arc-shaped double-disc disk;
[0025] A and B represent the specific codes for different yarn tubes. Detailed Implementation
[0026] To make the technical solution, the technical problem solved, and the technical effect of this utility model clearer, the technical solution of this utility model will be clearly and completely described below in conjunction with specific embodiments.
[0027] Example 1:
[0028] Reference Appendix Figure 1 This embodiment proposes an adjustable pressure yarn pressing disc assembly for dyeing wool and ammonia packaged yarn, the structure of which includes an arc-shaped disc 1 fitted onto the dyeing core 8 of the dyeing machine.
[0029] The arc-shaped disc 1 has an arc-shaped structure with its opening facing upwards or downwards. A through hole is provided at the center of the arc-shaped disc 1, and the diameter of the through hole is adapted to the outer diameter of the yarn tube 3. The yarn tube 3 is fitted downwards onto the dye core 8 of the dyeing machine, and yarn 4 is wound on the surface of the yarn tube 3. When the arc-shaped disc 1 is fitted onto the dye core 8 of the dyeing machine through the through hole, the end of the yarn tube 3 is inserted downwards or upwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core 8 of the dyeing machine. The arc-shaped disc 1 lifts up the bottom of the yarn 4 wound on the surface of the yarn tube 3 or presses down the top of the yarn 4 wound on the surface of the yarn tube 3.
[0030] In this embodiment, the dye core 8 of the dyeing machine is a stainless steel flower tube with uniformly opened liquid outlet holes on its surface; the yarn tube 3 has uniformly opened dyeing holes 5 on its surface, and the yarn 4 is wound around the surface of the yarn tube 3 and covers all the dyeing holes 5; after the yarn 4 is wound around the surface of the yarn tube 3, the winding width of the yarn 4 on the yarn tube 3 is less than the length of the yarn tube 3, and the end of the yarn tube 3 that is not wound by the yarn 4 is inserted into the annular gap formed between the inner wall of the through hole of the arc-shaped double disc 2 and the outer surface of the dye core 8.
[0031] In this embodiment, the arc-shaped disk 1 includes an integrally connected arc-shaped plate 6 and a circular tube 7. A through hole is provided at the center of the arc-shaped plate 6, the central axis of the through hole coincides with the central axis of the circular tube 7, and the inner diameter of the circular tube 7 is not less than the diameter of the through hole.
[0032] Taking two yarn tubes A and B with yarn 4 wound around their surfaces as an example, to prevent the yarn 4 from deforming, slipping, or even partially falling off at both ends of yarn tubes A and B during the dyeing process, please refer to the attached... Figure 1 The usage process of this embodiment is as follows:
[0033] (1) Select four arc-shaped disks a, b, c, and d;
[0034] (2) With the opening of the arc-shaped disk a facing upward, first, the arc-shaped disk a is placed downward on the dyeing core 8 of the dyeing machine; then, the yarn tube A is placed downward on the dyeing core 8 of the dyeing machine. At this time, the bottom end of the yarn tube A is inserted downward into the annular gap formed between the inner wall of the through hole of the arc-shaped disk a and the outer surface of the dyeing core 8 of the dyeing machine, and the arc plate 6 of the arc-shaped disk a lifts up the bottom of the yarn 4 wound on the surface of the yarn tube A; then, with the opening of the arc-shaped disk b facing downward, the arc-shaped disk b is placed downward on the dyeing core 8 of the dyeing machine until the top end of the yarn tube A is inserted upward into the annular gap formed between the inner wall of the through hole of the arc-shaped disk b and the outer surface of the dyeing core 8 of the dyeing machine. At this time, the arc plate 6 of the arc-shaped disk b presses down on the top of the yarn 4 wound on the surface of the yarn tube A.
[0035] (3) With the opening of the arc-shaped disk c facing upward, first, the arc-shaped disk c is placed downward on the dyeing core 8 of the dyeing machine. At this time, the arc-shaped disk c is located above the arc-shaped disk b, and the arc-shaped disk c and the arc-shaped disk b are in contact through the round tube 7. Then, the yarn tube B is placed downward on the dyeing core 8 of the dyeing machine. At this time, the bottom end of the yarn tube B is inserted downward into the annular gap formed between the inner wall of the through hole of the arc-shaped disk c and the outer surface of the dyeing core 8 of the dyeing machine. The arc plate 6 of the arc-shaped disk c lifts up the bottom of the yarn 4 wound on the surface of the yarn tube B. Then, with the opening of the arc-shaped disk d facing downward, the arc-shaped disk d is placed downward on the dyeing core 8 of the dyeing machine until the top end of the yarn tube B is inserted upward into the annular gap formed between the inner wall of the through hole of the arc-shaped disk d and the outer surface of the dyeing core 8 of the dyeing machine. At this time, the arc plate 6 of the arc-shaped disk d presses down on the top of the yarn 4 wound on the surface of the yarn tube B.
[0036] After completing the above steps, install the plug on top of the dye core 8 of the dyeing machine to prevent the arc-shaped disk d from moving up along the dye core 8 and detaching from the dye core 8. Then, turn on the circulation pump. The dye liquor pressurized by the circulation pump enters from the lower end of the dye core 8 and flows out from the outlet hole on the surface of the dye core 8. Then, it flows out from the dyeing hole 5 on the surface of yarn tubes A and B to immerse the yarn 4 wrapped on the surface of A and B. Under the action of the arc-shaped disks a, b, c, and d, the yarn 4 wrapped on the surface of yarn tubes A and B will not deform, slip or even partially fall off during the dyeing process.
[0037] Of course, it should be added that the arc-shaped disk c and the arc-shaped disk b can be directly connected through the end face of the round tube 7, or the arc-shaped disk c and the arc-shaped disk b can be nested internally and externally by setting grooves and protrusions on the end face of the round tube 7.
[0038] Example 2:
[0039] Reference Appendix Figure 2 This embodiment proposes an adjustable pressure yarn pressing disc assembly for dyeing wool and ammonia packaged yarn, the structure of which includes an arc-shaped disc 1 and an arc-shaped double disc 2 fitted on the dyeing core 8 of the dyeing machine.
[0040] The arc-shaped disc 1 has an arc-shaped structure with its opening facing upwards or downwards. A through hole is provided at the center of the arc-shaped disc 1, and the diameter of the through hole is adapted to the outer diameter of the yarn tube 3. The yarn tube 3 is fitted downwards onto the dye core 8 of the dyeing machine, and yarn 4 is wound on the surface of the yarn tube 3. When the arc-shaped disc 1 is fitted onto the dye core 8 of the dyeing machine through the through hole, the end of the yarn tube 3 is inserted downwards or upwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core 8 of the dyeing machine. The arc-shaped disc 1 lifts up the bottom of the yarn 4 wound on the surface of the yarn tube 3 or presses down the top of the yarn 4 wound on the surface of the yarn tube 3.
[0041] The arc-shaped double disc 2 includes arc-shaped discs 1 arranged symmetrically on the upper and lower sides, with the upper arc-shaped disc 1 opening upwards and the lower arc-shaped disc 1 opening downwards. When the arc-shaped double disc 2 is fitted onto the dye core 8 of the dyeing machine through the through hole and is located between two adjacent yarn tubes 3, the end of the lower yarn tube 3 is inserted upwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core 8, and the end of the upper yarn tube 3 is inserted downwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core 8.
[0042] In this embodiment, the dye core 8 of the dyeing machine is a stainless steel flower tube with uniformly opened liquid outlet holes on its surface; the yarn tube 3 has uniformly opened dyeing holes 5 on its surface, and the yarn 4 is wound around the surface of the yarn tube 3 and covers all the dyeing holes 5; after the yarn 4 is wound around the surface of the yarn tube 3, the winding width of the yarn 4 on the yarn tube 3 is less than the length of the yarn tube 3, and the end of the yarn tube 3 that is not wound by the yarn 4 is inserted into the annular gap formed between the inner wall of the through hole of the arc-shaped double disc 2 and the outer surface of the dye core 8.
[0043] In this embodiment, the arc-shaped disk 1 specifically includes an integrally connected arc-shaped plate 6 and a circular tube 7. A through hole is provided at the center of the arc-shaped plate 6, and the central axis of the through hole coincides with the central axis of the circular tube 7. The inner diameter of the circular tube 7 is not less than the diameter of the through hole. In the arc-shaped double disk 2, the upper arc-shaped disk 1 and the lower arc-shaped disk 1 share a circular tube 7, and an integral structure is formed through the circular tube 7.
[0044] Taking two yarn tubes A and B with yarn 4 wound around their surfaces as an example, to prevent the yarn 4 from deforming, slipping, or even partially falling off at both ends of yarn tubes A and B during the dyeing process, please refer to the attached... Figure 2 The usage process of this embodiment is as follows:
[0045] (1) Select arc-shaped disks a and b, and arc-shaped double-disc disk e;
[0046] (2) With the opening of the arc-shaped disc a facing upward, first, the arc-shaped disc a is placed downward on the dyeing core 8 of the dyeing machine; then, the yarn tube A is placed downward on the dyeing core 8 of the dyeing machine. At this time, the bottom end of the yarn tube A is inserted downward into the annular gap formed between the inner wall of the through hole of the arc-shaped disc a and the outer surface of the dyeing core 8 of the dyeing machine, and the arc plate 6 of the arc-shaped disc a lifts the bottom of the yarn 4 wound on the surface of the yarn tube A; then, the arc-shaped double disc e is placed downward on the dyeing core 8 of the dyeing machine until the top end of the yarn tube A is inserted upward into the annular gap formed between the inner wall of the through hole of the arc-shaped double disc e and the outer surface of the dyeing core 8 of the dyeing machine. At this time, the lower arc plate 6 of the arc-shaped double disc e presses down on the top of the yarn 4 wound on the surface of the yarn tube A.
[0047] (3) Continue to place the yarn tube B downwards onto the dye core 8 of the dyeing machine. At this time, the bottom end of the yarn tube B is inserted downwards into the annular gap formed between the inner wall of the through hole of the arc-shaped double disc e and the outer surface of the dye core 8 of the dyeing machine. The arc plate 6 above the arc-shaped double disc e lifts up the bottom of the yarn 4 wound on the surface of the yarn tube B. Then, with the opening of the arc disc b facing down, place the arc disc b downwards onto the dye core 8 of the dyeing machine until the top end of the yarn tube B is inserted upwards into the annular gap formed between the inner wall of the through hole of the arc disc b and the outer surface of the dye core 8 of the dyeing machine. At this time, the arc plate 6 of the arc disc b presses down on the top of the yarn 4 wound on the surface of the yarn tube B.
[0048] After completing the above steps, install the plug on top of the dye core 8 of the dyeing machine to prevent the arc-shaped disc b from moving up along the dye core 8 and detaching from it. Then, turn on the circulation pump. The dye liquor pressurized by the circulation pump enters from the lower end of the dye core 8 and flows out from the outlet hole on the surface of the dye core 8. Then, it flows out from the dyeing hole 5 on the surface of yarn tubes A and B to immerse the yarn 4 wrapped around the surface of yarn tubes A and B. Under the action of the arc-shaped discs a and b and the arc-shaped double disc e, the yarn 4 wrapped around the surface of yarn tubes A and B will not deform, slip or even partially fall off during the dyeing process.
[0049] Regarding the wool-ammonia yarn dyeing and pressing disc assembly device described in Embodiments 1 and 2, the following further explanation is needed:
[0050] 1. Both the arc-shaped plate 1 and the arc-shaped double-disc plate 2 have multiple small holes for dyeing liquid on the surface of the arc-shaped plate 6. During the dyeing process, excess dyeing liquid adhering to the yarn 4 falls through the small holes, thereby preventing the bottom or top of the yarn 4 that is in contact with the arc-shaped plate 6 from remaining in contact with the dyeing liquid after dyeing, which would result in uneven dyeing of the yarn 4.
[0051] 2. Both the arc-shaped disc 1 and the arc-shaped double disc 2 are made of 316L stainless steel plate.
[0052] 3. The yarn pressing disc assembly for dyeing wool and ammonia packaged yarn also includes washers. The washers are fitted onto the dye core 8 of the dyeing machine and are inserted into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core 8. By adjusting the number of washers, the distance between the ends of two adjacent yarn tubes 3 can be changed, thereby adjusting the pressure of the arc-shaped disc 1 and the arc-shaped double disc 2 on the end face of the yarn 4, so that the yarn density meets the dyeing requirements.
[0053] In summary, the adjustable pressure yarn pressing disc combination device for dyeing wool and ammonia packaged yarn of this utility model can solve the problem of yarn layer misalignment at the end of yarn tube 3 during the dyeing process of wool and ammonia packaged yarn 4, resulting in more uniform color of the dyed yarn 4.
[0054] The above specific examples illustrate the principles and implementation methods of this utility model in detail. These embodiments are only used to help understand the core technical content of this utility model. Based on the above specific embodiments of this utility model, any improvements and modifications made to this utility model by those skilled in the art without departing from the principles of this utility model should fall within the patent protection scope of this utility model.
Claims
1. An adjustable pressure yarn pressing disc assembly for dyeing wool and apron yarn, characterized in that, Its structure includes an arc-shaped disc fitted onto the dye core of the dyeing machine, or an arc-shaped disc and an arc-shaped double-disc plate fitted onto the dye core of the dyeing machine, wherein: The arc-shaped disk has an arc-shaped structure with its opening facing upwards or downwards. A through hole is provided at the center of the arc-shaped disk, and the diameter of the through hole is adapted to the outer diameter of the yarn tube. The yarn tube is fitted downwards onto the dye core of the dyeing machine, and yarn is wound on the surface of the yarn tube. When the arc-shaped disk is fitted onto the dye core of the dyeing machine through the through hole, the end of the yarn tube is inserted downwards or upwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core of the dyeing machine. The arc-shaped disk lifts up the bottom of the yarn wound on the surface of the yarn tube or presses down the top of the yarn wound on the surface of the yarn tube. The arc-shaped double disc includes arc-shaped discs arranged symmetrically on the upper and lower sides, with the upper arc-shaped disc opening upwards and the lower arc-shaped disc opening downwards. When the arc-shaped double disc is sleeved on the dye core of the dyeing machine through the through hole and located between two adjacent yarn tubes, the lower yarn tube end is inserted upwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core, and the upper yarn tube end is inserted downwards into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core.
2. The adjustable pressure yarn pressing disc assembly for dyeing wool-ammonia packaged yarn according to claim 1, characterized in that, The yarn tube has uniformly opened dyeing holes on its surface. The yarn is wound around the surface of the yarn tube and covers all the dyeing holes. After the yarn is wound around the surface of the yarn tube, the width of the yarn on the yarn tube is less than the length of the yarn tube. The end of the yarn tube that is not wound by the yarn is inserted into the annular gap formed between the inner wall of the through hole of the arc-shaped double disc and the outer surface of the dye core.
3. The adjustable pressure yarn pressing disc assembly for dyeing wool-ammonia packaged yarn according to claim 1, characterized in that, The arc-shaped disk includes an integrally connected arc-shaped plate and a circular tube. A through hole is provided at the center of the arc-shaped plate. The central axis of the through hole coincides with the central axis of the circular tube, and the inner diameter of the circular tube is not less than the diameter of the through hole.
4. The adjustable pressure yarn pressing disc assembly for dyeing wool-ammonia packaged yarn according to claim 3, characterized in that, The surface of the arc-shaped plate has multiple small holes for dye solution.
5. The adjustable pressure yarn pressing disc assembly for dyeing wool-ammonia packaged yarn according to claim 3, characterized in that, The arc-shaped double-disc includes arc-shaped disks arranged symmetrically on the top and bottom. The upper arc-shaped disk and the lower arc-shaped disk share a circular tube and form an integral structure through the circular tube.
6. The adjustable pressure yarn pressing disc assembly for dyeing wool-ammonia packaged yarn according to claim 5, characterized in that, The device also includes a washer, which is fitted onto the dye core of the dyeing machine and inserted into the annular gap formed between the inner wall of the through hole and the outer surface of the dye core.
7. The adjustable pressure yarn pressing disc assembly for dyeing wool-ammonia packaged yarn according to claim 1, characterized in that, The arc-shaped disk is made of 316L stainless steel plate.