A dyeing yarn sizing device for a dyeing and sizing combination machine
The three-dip, five-press, eight-roller dyeing yarn sizing device solves the problems of easy yarn stretching, strength loss, and poor yarn adhesion in traditional dyeing and sizing combined machines, achieving efficient sizing and efficient weaving, and meeting the sizing requirements of nylon, polyester, and their chemical fiber blended fabrics.
Patent Information
- Application Number
- CN202522142183.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-10
AI Technical Summary
Traditional dyeing and sizing machines have problems such as yarn stretching when wet, fiber slippage, strength loss, breakage, hair not adhering properly, and low weaving efficiency. They are particularly difficult to meet the process requirements when sizing nylon, polyester, and their blended fabrics.
Design a three-immersion, five-press, eight-roll dyeing yarn sizing device. It adopts a combination of III-press sizing roller and III-press pressing roller to increase the yarn immersion length and the number of pressing times. A tension detection device is set up so that the yarn tension can be controlled. The flow direction of the sizing liquid is consistent with the direction of yarn movement. The preheating sizing tank is at the rear and the main sizing tank is at the front and inclined. The gravity flow direction of the sizing liquid is consistent with the direction of yarn gravity.
It achieves more thorough coverage of yarn sizing, better yarn hair adherence, reduced yarn breakage, improved weaving efficiency, meets the sizing requirements of the process, and makes yarn handling convenient.
Smart Images
Figure CN224678323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile machinery technology, specifically to a sizing device for dyed yarns used in a dyeing and sizing combined machine. Background Technology
[0002] The traditional sizing method of the dyeing and pulping combined machine is double immersion and double pressure (see...). Figure 2 After dyeing, the yarn and dye liquor encroach on the space of the yarn fiber structure, and the coverage coefficient of the yarn in the sizing device exceeds 100%. This situation makes it difficult to meet the sizing process requirements for nylon, polyester and their chemical fiber blended fabrics.
[0003] like Figure 2 As shown, the sizing device of a traditional dyeing and sizing machine relies on sizing rollers to drive and pull the yarn. The yarn enters the sizing solution and is easily stretched in a wet state, causing fiber slippage, damaging yarn strength, making it prone to breakage, and reducing weaving efficiency. After the final roller pressing, the yarn exits horizontally, making operation difficult. Furthermore, the sizing solution adhering to the warp yarn surface tears the yarn under gravity, forming secondary fuzz, which is detrimental to weaving.
[0004] Furthermore, in traditional dyeing and sizing machines, the direction of sizing liquid flow is opposite to the direction of yarn movement. The yarn flows against the current, which can easily wash away the yarn hairs, making it difficult for the hairs to adhere properly and affecting weaving efficiency. Utility Model Content
[0005] This utility model addresses the shortcomings of existing technologies by proposing a novel sizing device for a combined dyeing and sizing machine, thus overcoming the deficiencies of existing technologies.
[0006] The technical solution adopted in this utility model is as follows: Design a yarn sizing device for a dyeing and sizing combined machine, including a yarn feeding tension roller (4), a first immersion pressure roller (5), a first sizing roller (6), a first pressing sizing roller (7), a second immersion pressure roller (8), a second sizing roller (9), a second pressing sizing roller (10), and a sizing tank (14). The first immersion pressure roller (5) is tightly connected to the corresponding first sizing roller (6) to form a sizing point; the second immersion pressure roller (8) is tightly connected to the corresponding second pressing sizing roller (9) to form a sizing point. The dyed yarn enters the sizing tank through the feeding tension roller (4) and the immersion pressure roller and is connected to the sizing roller and the pressing roller. The sizing device also includes an unwinding tension roller (1), a yarn guide roller (2), a yarn press roller (3), and a III sizing roller (11) and a III pressing sizing roller (12); the yarn guide roller (2) and the yarn press roller (3) are closely connected to form a sizing point, and the III sizing roller (11) and the III pressing sizing roller (12) are closely connected to form a sizing point; the sizing warp yarn (13) is fed into the feeding tension roller (4) via the unwinding tension roller, the yarn guide roller and the yarn press roller, and is led out sequentially via the first and second immersion press rollers, the I sizing roller, the I pressing sizing roller and the II sizing roller, the II pressing sizing roller and the III sizing roller (11) and the III pressing sizing roller (12).
[0007] The dyeing yarn sizing device for the dyeing and sizing combined machine, wherein the III pressure sizing roller (11) has both immersion and sizing functions, and the III pressure sizing roller (11) and the III pressure sizing roller (12) are arranged so that the yarn exit direction is vertically upward.
[0008] The yarn sizing device for the dyeing and sizing machine is described above. The yarn guide roller (2) and the III sizing roller (11) are active rollers, directly connected to a power motor for driving, and the remaining rollers are passive rollers. The yarn guide roller (2) and the yarn press roller (3), as well as the III sizing roller (11) and the III pressing sizing roller (12), provide traction power for the yarn to enter and exit the sizing tank in the yarn travel direction, respectively.
[0009] The yarn sizing device for the dyeing and sizing machine is equipped with tension detection sensors at the unwinding tension roller (1) and the yarn feeding tension roller (4), before the yarn enters the guide roller and before entering the sizing tank, to detect the yarn tension. This ensures that the yarn tension is controllable and avoids damage to the yarn strength caused by forceful pulling.
[0010] The dyeing yarn sizing device for the dyeing and sizing combined machine has a distribution of three-immersion, five-pressure, and eight-roller sizing structure, consisting of the first immersion pressure roller (5), the I pressure sizing roller (6), the I pressure sizing roller (7), the second immersion pressure roller (8), the II pressure sizing roller (9), the II pressure sizing roller (10), the III pressure sizing roller (11), and the III pressure sizing roller (12). The pressure of the sizing rollers in the three-stage structure of the sizing rollers and the pressure rollers gradually changes, with the maximum pressures being 15KN, 30KN, and 50KN, respectively.
[0011] The dyeing yarn sizing device for the dyeing and sizing combined machine includes a sizing tank (14) consisting of a preheating sizing tank and a main sizing tank connected in sequence. The preheating sizing tank is in the back and the main sizing tank is in the front, with the bottom of the main sizing tank sloping downward from front to back. The direction of the sizing liquid flow is consistent with the direction of the yarn.
[0012] Beneficial effects of the utility model: 1. The dyeing and sizing device of this utility model's dyeing and sizing machine adopts a three-immersion, five-pressure, eight-roller sizing structure, which increases the yarn immersion length and the number of rolling cycles. Different rolling pressures can be applied at different immersion stages of the yarn, allowing for more thorough coating and penetration of the sizing solution, facilitating sizing, and meeting the sizing requirements of the process, especially for sizing yarn after dyeing.
[0013] 2. The dyeing yarn sizing device of the dyeing and sizing combined machine of this utility model, after the yarn is pressed by the III pressing sizing roller 11 and the III pressing sizing roller 12, is divided into two pieces and exits vertically. Due to gravity, the sizing liquid flows downward by gravity, the yarn hairs are better attached, and it is also easy to operate.
[0014] 3. The yarn sizing device of this utility model dyeing and sizing combined machine is based on the yarn's direction of travel. After improvement, the preheating sizing tank is at the rear and the main sizing tank is at the front, and the bottom of the main sizing tank slopes downward from front to back. The sizing liquid flows in the same direction as the yarn's movement, which has a conforming effect on the yarn's hairiness and is beneficial for subsequent weaving. 4. The yarn sizing device of the dyeing and sizing machine of this utility model adds a tension detection device before the yarn enters the yarn guide roller and before entering the sizing tank to detect the yarn tension. At the same time, the yarn guide roller actively pulls the yarn into the sizing tank, so the yarn tension can be controlled, avoiding damage to the yarn strength caused by hard pulling, reducing yarn breakage, and improving weaving efficiency. Attached Figure Description
[0015] Figure 1 The diagram shown is a schematic diagram of the dyeing yarn sizing device of the dyeing and sizing combined machine of this utility model. Figure 2 The diagram shows the structure of the sizing device in a traditional dyeing and pulping machine. Figure 3 The diagram shows an unwinding tension detection device, where 31 is a spring, 32 is a swing frame, and 33 is a damping cylinder. Figure 4 The diagram shown is a pneumatic schematic of warp shaft unwinding. In the diagram, 41-filter pressure regulating valve, 42-electric proportional valve, 43-two-position three-way pilot valve, and 44-undamped cylinder. Detailed Implementation
[0016] To make the technical concept and advantages of the invention clearer, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the following embodiments are merely preferred embodiments for explaining and illustrating this utility model, and should not be considered as, nor constitute a limitation on, the scope of patent protection claimed for this utility model.
[0017] Example 1 This utility model provides a novel sizing device for a three-immersion, five-pressure, eight-roll dyeing combined machine, including an unwinding tension roller 1, a yarn guiding roller 2, a yarn pressing roller 3, a feeding tension roller 4, an immersion-side pressure roller 5, a first-pressure sizing roller 6, a first-pressure sizing roller 7, an immersion-side pressure roller 8, a second-pressure sizing roller 9, a second-pressure sizing roller 10, a third-pressure sizing roller 11, and a third-pressure sizing roller 12. 13 is the sizing warp yarn, 14 is the trough (with the preheating sizing trough at the rear and the main sizing trough at the front, and the bottom of the main sizing trough sloping downwards from front to back), and 15 is the sizing liquid. After dyeing, the yarn is drawn into the sizing tank by the yarn guide roller. The first sizing roller 6 and the immersion side roller 5 are pressed together to form a sizing point. The second sizing roller 6 and the first pressing sizing roller 7 are pressed together to form a sizing point. The third sizing roller 9 and the immersion side roller 8 are pressed together to form a sizing point. The fourth sizing roller 9 and the fifth pressing sizing roller 10 are pressed together to form a sizing point. The fifth sizing roller 11 and the third pressing sizing roller 12 are pressed together to form a sizing point. In this process, the yarn passes through the immersion side roller 5, the immersion side roller 8, and the third sizing roller 11, and is immersed 3 times and pressed 5 times.
[0018] This sizing device overcomes the shortcomings of existing technology through the following improvements, and produces the following positive and beneficial effects: 1) By setting up the III-stage sizing roller 11 and III-stage pressing roller 12, the yarn immersion length and the number of pressing cycles are increased. Different pressing pressures correspond to different immersion stages of the yarn (the pressures of the three-stage pressing rollers gradually change, with maximum pressures of 15KN, 30KN, and 50KN respectively; the traditional dyeing and sizing machine uses a double-immersion, double-press sizing method, with maximum pressing roller pressures of 15KN and 40KN respectively), ensuring more thorough coating and penetration of the sizing solution, facilitating sizing, and meeting the process sizing requirements, especially for sizing yarns after dyeing.
[0019] 2) This utility model's sizing device realizes a yarn sizing process of three dips, five presses, and eight rollers. Traditional dyeing and sizing machines lack side-pressure functionality in their immersion rollers. This utility model, however, uses the immersion roller and sizing roller to form pressure points, giving the immersion roller a side-pressure function, thus effectively meeting the fabric sizing process requirements. The yarn guide roller 2 and the III pressure sizing roller are directly driven by a motor, providing dual drive for the sand to enter and exit the sizing tank, ensuring stable power. Traditional dyeing and sizing machines lack a yarn guide roller; the sizing roller is driven by a motor via a sprocket, making it the active roller and the others passive rollers, resulting in poor power stability.
[0020] 2) The sizing device of this utility model is equipped with a tension detection device on the unwinding tension roller 1 and the feeding tension roller 4 before the yarn enters the yarn guide roller and before entering the sizing tank. The device is used to detect the yarn tension. At the same time, the yarn guide roller actively pulls the yarn into the sizing tank, so the yarn tension can be controlled, avoiding damage to the yarn strength caused by hard pulling, reducing yarn breakage, and improving weaving efficiency.
[0021] Figure 3 The diagram shows the structure of the unwinding tension detection device. The pneumatic principle of unwinding is as follows: Figure 4 As shown. The unwinding length of the yarn is set in the main control system computer. As the unwinding length increases, the computer calculates and controls the pressure of the brake cylinder to decrease proportionally. Simultaneously, a detection and control system, namely a fine-tuning control system, must be added to achieve high-precision constant tension unwinding control. The automatic fine-tuning control system for unwinding tension mainly consists of three parts: detection, control, and execution. The detection part mainly consists of tension rollers, the control part consists of a computer and an electronically controlled proportional valve, and the execution part consists of a brake cylinder and a brake band. A potentiometer is installed on the tension roller head of the warp beam unwinding device to detect the unwinding tension. A 4-20mA current signal is output from the microcomputer to the electronically controlled proportional valve. During the unwinding process, as the diameter of the warp beam continuously decreases, the braking unwinding tension formed by the braking device continuously increases, causing the tension to fluctuate. The current signal output from the microcomputer to the proportional valve changes, adjusting the air pressure in the brake cylinder proportionally, thus forming a constant tension unwinding control system to ensure that the warp yarn unwinds at a constant tension value from the beginning to the end of the warp beam unwinding.
[0022] 3) After the yarn is pressed by rollers III (11) and III (12), it is divided into two pieces and exits vertically. Due to gravity, the sizing liquid flows downwards, resulting in better yarn smoothness and easier operation. The yarn pieces are then sent to the drying room for drying. In the preparation process, the yarn has already been drawn from front to back.
[0023] 4) The sizing liquid flows in the same direction as the yarn (based on the direction of yarn travel, the bottom of the main sizing tank slopes downward from front to back; the sizing liquid flow direction of the sizing device in the traditional dyeing and sizing combined machine is opposite to the direction of yarn movement), which has a conforming effect on the yarn hairs and is beneficial for subsequent weaving.
Claims
1. A yarn sizing device for a dyeing and sizing combined machine, comprising a yarn feeding tension roller (4), a first immersion pressure roller (5), a first sizing roller (6), a first pressing sizing roller (7), a second immersion pressure roller (8), a second sizing roller (9), a second pressing sizing roller (10), and a sizing tank (14), wherein the first immersion pressure roller (5) is tightly connected to the corresponding first sizing roller (6) to form a sizing point; the second immersion pressure roller (8) is tightly connected to the corresponding second pressing sizing roller (9) to form a sizing point, and the dyed yarn enters the sizing tank and connects to the sizing roller and the pressing sizing roller after passing through the feeding tension roller (4) and the immersion pressure roller, characterized in that: It also includes a rewinding tension roller (1), a yarn guide roller (2), a yarn press roller (3), and a III sizing roller (11) and a III pressing sizing roller (12); the yarn guide roller (2) and the yarn press roller (3) are closely connected to form a sizing point, and the III sizing roller (11) and the III pressing sizing roller (12) are closely connected to form a sizing point; the sizing warp yarn (13) is fed into the feeding tension roller (4) via the rewinding tension roller, the yarn guide roller and the yarn press roller, and is led out sequentially via the first and second immersion press rollers, the I sizing roller, the I pressing sizing roller and the II sizing roller, the II pressing sizing roller and the III sizing roller (11) and the III pressing sizing roller (12).
2. The dyeing yarn sizing device for a combined dyeing and sizing machine according to claim 1, characterized in that: The Ⅲ pressing sizing roller (11) has both immersion and sizing functions. The setting of the Ⅲ pressing sizing roller (11) and the Ⅲ pressing sizing roller (12) makes the yarn exit direction vertically upward.
3. The dyeing yarn sizing device for a combined dyeing and sizing machine according to claim 1 or 2, characterized in that: The slurry tank (14) includes a preheating slurry tank and a main slurry tank connected in sequence. With the direction of yarn travel as the reference, the preheating slurry tank is behind and the main slurry tank is in front. The bottom of the main slurry tank is inclined from front to back and downward, and the direction of slurry flow is consistent with the direction of yarn travel.
4. The dyeing yarn sizing device for a combined dyeing and sizing machine according to claim 1 or 2, characterized in that: The yarn guide roller (2) and the III sizing roller (11) are active rollers, directly connected to a power motor for driving, while the other rollers are passive rollers; the yarn guide roller (2) and the yarn pressing roller (3), as well as the III sizing roller (11) and the III pressing roller (12), provide traction power for the yarn to enter and exit the sizing trough in the yarn travel direction, respectively.
5. The dyeing yarn sizing device for a combined dyeing and sizing machine according to claim 1 or 2, characterized in that: Tension detection sensors are provided at the unwinding tension roller (1) and the yarn feeding tension roller (4) before the yarn enters the yarn guide roller and before it enters the slurry tank to detect the yarn tension.
6. The dyeing yarn sizing device for a combined dyeing and sizing machine according to claim 4, characterized in that: Tension detection sensors are provided at the unwinding tension roller (1) and the yarn feeding tension roller (4) before the yarn enters the yarn guide roller and before it enters the slurry tank to detect the yarn tension.
7. The dyeing yarn sizing device for a combined dyeing and sizing machine according to claim 1, 2, or 6, characterized in that: The first immersion roller (5) together with the I sizing roller (6) and the I pressing roller (7), the second immersion roller (8) together with the II sizing roller (9) and the II pressing roller (10), and the III sizing roller (11) and the III pressing roller (12) form a three-immersion, five-press, eight-roller sizing structure. The pressure of the sizing rollers in the three-stage structure of the sizing roller and the pressing roller gradually changes, with the maximum pressures being 15KN, 30KN, and 50KN respectively.
8. The sizing device for dyeing yarn in a combined dyeing and sizing machine according to claim 4, characterized in that: The first immersion roller (5) together with the I sizing roller (6) and the I pressing roller (7), the second immersion roller (8) together with the II sizing roller (9) and the II pressing roller (10), and the III sizing roller (11) and the III pressing roller (12) form a three-immersion, five-press, eight-roller sizing structure. The pressure of the sizing rollers in the three-stage structure of the sizing roller and the pressing roller gradually changes, with the maximum pressures being 15KN, 30KN, and 50KN respectively.