Polyester thread uniform dyeing device
By adopting a design of two rows of equally spaced dyeing rollers and a guiding mechanism in the polyester yarn dyeing device, the problem of uneven dyeing of polyester yarn was solved, a uniform dyeing effect was achieved, and dye consumption and production costs were reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHISHI YIMING DYEING & WEAVING
- Filing Date
- 2026-04-21
- Publication Date
- 2026-05-22
AI Technical Summary
Existing polyester yarn dyeing equipment suffers from uneven dyeing, resulting in color differences, color variations, and inconsistent shades within the same batch of polyester yarn, which affects product quality and subsequent processing.
Design a uniform dyeing device for polyester yarn, which adopts two rows of dyeing rollers with equal spacing, combined with L-shaped and vertical discharge pipe design to ensure that the dye uniformly covers the surface of the yarn, while the guiding mechanism keeps the yarn taut to avoid friction and deviation.
It achieves uniform dyeing of polyester yarn, improves the uniformity and consistency of dyeing, reduces dye consumption, lowers production costs, and meets environmental protection and energy-saving requirements.
Smart Images
Figure CN224266348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyester thread dyeing technology, specifically to a device for uniformly dyeing polyester thread. Background Technology
[0002] Polyester sewing thread is a synthetic fiber sewing thread made from polyethylene terephthalate (PET). According to the raw materials, it can be divided into three types: staple fiber, core-spun thread, and filament thread. This thread has the characteristics of high strength, wear resistance, corrosion resistance, and low shrinkage. Among them, the strength of filament sewing thread is second only to nylon thread, while core-spun thread achieves better physical properties through the structure of polyester filament core and outer fiber.
[0003] Most existing polyester yarn dyeing equipment suffers from uneven dyeing. This manifests as color differences, uneven coloring, and inconsistent shades within the same batch of polyester yarn, severely impacting product quality and subsequent processing, thus constituting a defect. Utility Model Content
[0004] The purpose of this invention is to provide a device for uniform dyeing of polyester yarn to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a polyester yarn uniform dyeing device, comprising a support base, guide mechanisms on both sides of the support base, and a dyeing mechanism on the top of the support base;
[0006] The dyeing mechanism includes a dyeing roller, which is disposed on the top of the support base. Vertical plates are rotatably connected to both sides of the surface of the dyeing roller, and fixed plates are fixedly connected to both sides of the vertical plates. Support rods are fixedly connected to the surface of the fixed plates. A box is disposed at the bottom of the dyeing roller, and the box is disposed in the middle of the top of the support base.
[0007] Preferably, the dyeing rollers are designed in two rows, one above the other, and the number of dyeing rollers is several. The several dyeing rollers are distributed at equal intervals. Through the staggered or corresponding layout of the two rows of dyeing rollers, the polyester thread comes into contact with the surface of the dyeing rollers multiple times during the up-and-down reciprocating process, increasing the dyeing area and contact time. At the same time, the equal interval distribution can ensure that the thread is subjected to uniform force during transmission, avoiding local accumulation or uneven tension, thereby achieving a more uniform dyeing effect.
[0008] Preferably, a material cylinder is provided at the top of the dyeing roller, and a discharge pipe is fixedly connected to the bottom of the material cylinder. The number of discharge pipes is five, and the five discharge pipes are designed in an L-shape and vertical shape. The dye is evenly guided to the surface of the dyeing roller at different positions through multiple discharge pipes. The combination of L-shape and vertical shape design can adapt to different arrangement angles of the dyeing roller, ensuring that the dye can be accurately and stably dripped onto the surface of each dyeing roller, avoiding dye waste or uneven distribution.
[0009] Preferably, a second connecting rod is fixedly connected to both the front and rear sides of the material cylinder, and a first connecting rod is fixedly connected to the bottom of the second connecting rod. The first connecting rod is fixedly connected to the top of the support base. The first connecting rod and the second connecting rod form a stable support structure, which fixes the material cylinder above the dyeing roller, preventing it from shaking or shifting during equipment operation, ensuring the relative position between the discharge pipe and the dyeing roller is stable, thereby maintaining the accuracy of dye dripping.
[0010] Preferably, the guiding mechanism includes a mounting plate, which is fixedly connected to both sides of the support base. A first fixing frame is fixedly connected to both sides of the top surface of the mounting plate. A first guide roller is rotatably connected inside the first fixing frame. The mounting plate and the first fixing frame provide a stable mounting base. The first guide roller is used to guide the polyester thread into the dyeing area, reduce the friction and deviation of the thread before entering the dyeing area, and ensure the smooth operation of the thread.
[0011] Preferably, a second guide roller is provided at the bottom of the first guide roller, and a second fixing frame is rotatably connected to the surface of the second guide roller. The second fixing frame is fixedly connected to the surface of the bottom mounting plate. By the first guide roller and the second guide roller arranged vertically, the polyester thread is clamped and guided vertically, so that the thread is kept taut before entering the dyeing area, avoiding uneven dyeing or tangling problems caused by slack.
[0012] Preferably, a placement rod is fixedly connected between the first fixing frame and the second fixing frame, and the placement rod has a U-shaped design.
[0013] Compared with the prior art, the present invention provides a device for uniform dyeing of polyester yarn, which has the following beneficial effects:
[0014] 1. This polyester thread uniform dyeing device, by setting two rows of dyeing rollers with equal spacing, allows the polyester thread to come into contact with the surface of the dyeing rollers multiple times during the dyeing process. Combined with the design of L-shaped and vertical discharge pipes, it ensures that the dye is evenly covered on the surface of the thread, significantly improving the uniformity and consistency of dyeing.
[0015] 2. This polyester yarn uniform dyeing device can collect excess dye dripping during the dyeing process by setting a box at the bottom of the dyeing roller, which is convenient for recycling and reuse, reduces dye consumption, reduces production costs, and meets environmental protection and energy-saving requirements. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the dyeing mechanism of this utility model;
[0019] Figure 3 This is a partial structural diagram of the dyeing mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the guiding mechanism of this utility model.
[0021] In the diagram: 1. Support base; 2. Dyeing mechanism; 21. Support rod; 22. Fixing plate; 23. Discharge pipe; 24. Box body; 25. First connecting rod; 26. Vertical plate; 27. Dyeing roller; 28. Material cylinder; 29. Second connecting rod; 3. Guiding mechanism; 31. First guide roller; 32. First fixing frame; 33. Placement rod; 34. Second fixing frame; 35. Second guide roller; 36. Mounting plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model provides a technical solution:
[0024] Example 1:
[0025] Combination Figures 1-3 A uniform dyeing device for polyester yarn includes a support base 1, guide mechanisms 3 on both sides of the support base 1, and a dyeing mechanism 2 on the top of the support base 1.
[0026] The dyeing mechanism 2 includes a dyeing roller 27, which is located on the top of the support base 1. Vertical plates 26 are rotatably connected to both sides of the surface of the dyeing roller 27. Fixed plates 22 are fixedly connected to both sides of the vertical plates 26. Support rods 21 are fixedly connected to the surface of the fixed plates 22. A box 24 is provided at the bottom of the dyeing roller 27. The box 24 is located in the middle of the top of the support base 1.
[0027] Furthermore, the dyeing rollers 27 are designed in two rows, one above the other, and there are several dyeing rollers 27. These dyeing rollers 27 are distributed at equal intervals. Through the staggered or corresponding layout of the two rows of dyeing rollers 27, the polyester yarn comes into contact with the surface of the dyeing rollers 27 multiple times during its up-and-down reciprocating process, increasing the dyeing area and contact time. At the same time, the equal interval distribution can ensure that the yarn is subjected to uniform force during transmission, avoiding local accumulation or uneven tension, thereby achieving a more uniform dyeing effect.
[0028] Furthermore, a material cylinder 28 is provided at the top of the dyeing roller 27, and a discharge pipe 23 is fixedly connected to the bottom of the material cylinder 28. There are five discharge pipes 23, which are designed in an L-shape and vertical shape. The dye is evenly guided to the surface of the dyeing roller 27 at different positions through multiple discharge pipes 23. The combination of L-shape and vertical shape design can adapt to different arrangement angles of the dyeing roller 27, ensuring that the dye can be accurately and stably dripped onto the surface of each dyeing roller 27, avoiding dye waste or uneven distribution.
[0029] Furthermore, a second connecting rod 29 is fixedly connected to both the front and rear sides of the material cylinder 28. A first connecting rod 25 is fixedly connected to the bottom of the second connecting rod 29. The first connecting rod 25 is fixedly connected to the top of the support base 1. The first connecting rod 25 and the second connecting rod 29 form a stable support structure, which fixes the material cylinder 28 above the dyeing roller 27, preventing it from shaking or shifting during equipment operation, ensuring the relative position between the discharge pipe 23 and the dyeing roller 27 is stable, thereby maintaining the accuracy of dye dripping.
[0030] Example 2:
[0031] See Figure 4 Furthermore, based on Embodiment 1, the guide mechanism 3 includes a mounting plate 36, which is fixedly connected to both sides of the support base 1. A first fixing frame 32 is fixedly connected to both sides of the surface of the top mounting plate 36. A first guide roller 31 is rotatably connected inside the first fixing frame 32. The mounting plate 36 and the first fixing frame 32 provide a stable mounting base. The first guide roller 31 is used to guide the polyester thread into the dyeing area, reduce the friction and deviation of the thread before entering the dyeing area, and ensure the smooth operation of the thread.
[0032] Furthermore, a second guide roller 35 is provided at the bottom of the first guide roller 31, and a second fixing frame 34 is rotatably connected to the surface of the second guide roller 35. The second fixing frame 34 is fixedly connected to the surface of the bottom mounting plate 36. Through the first guide roller 31 and the second guide roller 35 arranged vertically, the polyester thread is clamped and guided vertically, so that the thread is kept taut before entering the dyeing area, avoiding uneven dyeing or tangling problems caused by slack.
[0033] Furthermore, a placement rod 33 is fixedly connected between the first fixing frame 32 and the second fixing frame 34, and the placement rod 33 has a U-shaped design.
[0034] In actual operation, the polyester thread is first placed on the surface of the first guide roller and the second guide roller. At this time, the first guide roller guides the second guide roller to facilitate subsequent dyeing. Under the guidance of the first and second guide rollers, the polyester thread is taut. The dye inside the barrel flows downward through multiple discharge pipes at the bottom and is distributed on the surface of the dyeing roller. The dyeing roller can then achieve the purpose of uniformly dyeing the polyester thread. Excess dye will fall into the inside of the box. The box can be removed and placed back into the barrel for future use.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A device for uniformly dyeing polyester yarn, comprising a support base (1), characterized in that: The support base (1) is provided with guide mechanisms (3) on both sides, and the support base (1) is provided with dyeing mechanism (2) on the top. The dyeing mechanism (2) includes a dyeing roller (27), which is located on the top of the support base (1). Vertical plates (26) are rotatably connected to both sides of the surface of the dyeing roller (27). Fixed plates (22) are fixedly connected to both sides of the vertical plates (26). Support rods (21) are fixedly connected to the surface of the fixed plates (22). A box (24) is provided at the bottom of the dyeing roller (27). The box (24) is located in the middle of the top of the support base (1).
2. The polyester yarn uniform dyeing device according to claim 1, characterized in that: The dyeing rollers (27) are designed in two rows, one above the other, and the number of dyeing rollers (27) is several, with the several dyeing rollers (27) distributed at equal intervals.
3. The polyester yarn uniform dyeing device according to claim 1, characterized in that: The dyeing roller (27) is provided with a material cylinder (28) at the top, and a discharge pipe (23) is fixedly connected to the bottom of the material cylinder (28). The number of discharge pipes (23) is five, and the five discharge pipes (23) are designed in an L-shape and vertical shape.
4. The polyester yarn uniform dyeing device according to claim 3, characterized in that: The material cylinder (28) is fixedly connected to the front and rear sides with a second connecting rod (29), and the bottom of the second connecting rod (29) is fixedly connected to a first connecting rod (25). The first connecting rod (25) is fixedly connected to the top of the support base (1).
5. The polyester yarn uniform dyeing device according to claim 1, characterized in that: The guiding mechanism (3) includes a mounting plate (36), which is fixedly connected to both sides of the support base (1). A first fixing frame (32) is fixedly connected to both sides of the top mounting plate (36), and a first guide roller (31) is rotatably connected inside the first fixing frame (32).
6. The polyester yarn uniform dyeing device according to claim 5, characterized in that: The bottom of the first guide roller (31) is provided with a second guide roller (35), and the surface of the second guide roller (35) is rotatably connected to a second fixing frame (34), which is fixedly connected to the surface of the bottom mounting plate (36).
7. The polyester yarn uniform dyeing device according to claim 6, characterized in that: A placement rod (33) is fixedly connected between the first fixing frame (32) and the second fixing frame (34), and the placement rod (33) is U-shaped.