Polyester knitted fabric one-bath finishing equipment

Abstract

The utility model discloses polyester knitted fabric one-bath finishing equipment, belongs to the technical field of textile finishing, and solves the problem that the working efficiency is relatively poor due to the fact that the polyester knitted fabric is soaked in liquid for a period of time and then water is absorbed by the polyester knitted fabric to finish the one-bath finishing action in the current operation mode. Comprising a treatment pond, a plurality of cloth pressing and water squeezing assemblies with different horizontal heights are arranged in the treatment pond and arranged at intervals in the length direction of the treatment pond, and the treatment pond is filled with dye and a finishing agent. When the cloth pressing and water squeezing device works, an operator unrolls a coiled polyester knitted fabric, so that the coiled polyester knitted fabric passes through a plurality of groups of cloth pressing and water squeezing components. The water outlet directions of the assemblies are different, and the polyester knitted fabric alternately passes back and forth. And the cloth pressing and water squeezing assembly enables dye and finishing agents to impact the polyester knitted fabric, it is guaranteed that the dye and the finishing agents are fully absorbed inside and outside the polyester knitted fabric, and the one-bath finishing progress is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of textile finishing technology, and in particular to a device for finishing polyester knitted fabrics in the same bath. Background Technology

[0002] Finishing processes for polyester textiles are important techniques for improving fabric properties and appearance through physical or chemical methods. Their main purpose is to enhance the fabric's dimensional stability, hand feel, and appearance, and to impart special functions such as wrinkle resistance, water repellency, and flame retardancy. Finishing processes include heat setting, which stabilizes the polyester fiber morphology through high temperatures; napping, which uses mechanical friction to create a nap on the fabric surface, giving it a peach-skin or suede effect. In addition, chemical finishing processes such as antistatic finishing and softening finishing improve the fabric's hydrophilicity and hand feel by applying auxiliaries. These processes not only enhance the wearing performance of polyester fabrics but also increase their added value.

[0003] One-bath finishing of polyester knitted fabrics is a highly efficient process that combines dyeing and functional finishing. It allows dyeing and finishing to be completed in a single bath, significantly shortening the production process and reducing energy consumption and costs. For example, in a one-bath dyeing and waterproofing finishing process, by optimizing the working solution formula and process parameters, excellent waterproof properties can be imparted to the fabric during dyeing, while maintaining a soft hand feel. Furthermore, one-bath finishing can also be used for functional finishing such as moisture wicking. By adding hydrophilic finishing agents during the dyeing process, polyester fabrics acquire durable moisture wicking properties. This process not only improves production efficiency but also reduces environmental impact, resulting in significant economic and social benefits.

[0004] To ensure that the dyeing and finishing processes can be fully combined during the same bath finishing of polyester knitted fabrics, it is required that the dyes, finishing agents, and water can fully penetrate the polyester knitted fabrics. However, the current operation method is to soak the polyester knitted fabrics in the liquid for a period of time, allowing the polyester knitted fabrics to absorb water and then complete the same bath finishing process. This method is relatively inefficient.

[0005] Therefore, a polyester knitted fabric finishing equipment is proposed to solve or alleviate the above problems. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a single-bath finishing device for polyester knitted fabrics.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A polyester knitted fabric finishing device includes a treatment tank, in which several sets of pressing and squeezing components at different horizontal heights are arranged. The several sets of pressing and squeezing components are spaced apart along the length of the treatment tank. The treatment tank is filled with dye and finishing agent. The pressing and squeezing components guide the dye and finishing agent into the treatment tank and form a water flow to leave. The water outlet directions of adjacent pressing and squeezing components are arranged in opposite directions.

[0009] Preferably, the fabric pressing and dewatering assembly includes a tubular limiting strip and two piston sliders that reciprocate within the limiting strip. The limiting strip has several water outlet holes on its top or bottom surface. The two piston sliders move simultaneously towards or away from each other. Each end of the limiting strip has an inlet hole communicating with its interior. A one-way valve is fixedly connected to each inlet hole. A through hole is provided on the side of the piston sliders facing each other. A one-way valve is fixedly connected to each through hole. The one-way valve can guide the dye and finishing agent entering the limiting strip into the space between adjacent piston sliders.

[0010] Preferably, the diameter of the water outlet is gradually reduced from the inside to the outside.

[0011] Preferably, a plurality of the water outlet holes are evenly spaced along the length direction of the limiting pressure strip.

[0012] Preferably, the top or bottom edge of the limiting strip is rounded.

[0013] Preferably, the two ends of the limiting pressure strip are fixedly connected to the inner wall of the treatment pool, and a servo motor is fixedly connected to the outer wall of the treatment pool. Two screws with opposite thread directions and coaxial transmission are rotatably arranged inside the limiting pressure strip. The ends of the two screws that are far apart from each other are coaxially fixedly connected to a rotating shaft. The rotating shaft is arranged through the treatment pool and the part of the rotating shaft that passes through the treatment pool is sealed. One part of the rotating shaft is coaxially transmitted to the output shaft of the servo motor.

[0014] Preferably, it also includes a base frame and a base, with the treatment pool fixedly connected to the base frame and the base frame fixedly connected to the base.

[0015] This utility model has the following beneficial effects:

[0016] In operation, the operator unwinds a roll of polyester knitted fabric, allowing it to pass through multiple sets of pressing and squeezing components. These components have different water outlet directions, and the polyester knitted fabric alternates between them. Rounded corners prevent scratches. A servo motor drives the rotating shaft and lead screw, causing the piston and slider to move towards or away from each other. When moving towards each other, dyes and finishing agents enter the limiting pressure bar through the inlet check valve; when moving away from each other, dyes and finishing agents enter the space between the piston and slider through the outlet check valve. Upon another movement towards each other, the dyes and finishing agents are squeezed out from the reduced-diameter outlet holes, impacting the polyester knitted fabric and ensuring it is fully saturated with dyes and finishing agents, thus accelerating the same-bath finishing process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the medium-pressure cloth dewatering assembly of this utility model;

[0020] Figure 3 This is a cross-sectional view of the medium-pressure cloth dewatering assembly of this utility model.

[0021] 1. Treatment tank; 2. Base frame; 3. Base; 4. Limiting strip; 5. Rounded corner; 6. Water outlet; 7. Piston slider; 8. Lead screw; 9. Inlet check valve; 10. Drain check valve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] A single-bath finishing device for polyester knitted fabrics, such as Figure 1 As shown, the device includes a treatment tank 1, a base frame 2, and a base 3. The treatment tank 1 is fixedly connected to the base frame 2, and the base frame 2 is fixedly connected to the base 3. Several sets of fabric pressing and squeezing components with different horizontal heights are installed in the treatment tank 1. The several sets of fabric pressing and squeezing components are spaced apart along the length of the treatment tank 1. The treatment tank 1 is filled with dyes and finishing agents. The fabric pressing and squeezing components guide the dyes and finishing agents in the treatment tank 1 into it and form a water flow to leave. The water outlet directions of adjacent fabric pressing and squeezing components are arranged in opposite directions.

[0029] like Figure 2 and Figure 3 As shown, the fabric pressing and squeezing assembly includes a tubular limiting strip 4 and two piston sliders 7 that reciprocate within the limiting strip 4. The top or bottom edge of the limiting strip 4 is provided with rounded corners 5. Several water outlet holes 6 are provided on the top or bottom surface of the limiting strip 4. The diameter of the water outlet holes 6 gradually decreases from the inside to the outside. The several water outlet holes 6 are evenly spaced along the length of the limiting strip 4.

[0030] Two piston sliders 7 move simultaneously towards or away from each other. Both ends of the limiting pressure strip 4 have inlet holes communicating with its interior. A water inlet check valve 9 is fixedly connected to the inlet hole. A through hole is opened on the side of the piston sliders 7 facing each other. A water-blowing check valve 10 is fixedly connected to the through hole. The water-blowing check valve 10 can guide the dye and finishing agent entering the limiting pressure strip 4 into the space between adjacent piston sliders. Both ends of the limiting pressure strip 4 are fixedly connected to the inner wall of the treatment tank 1. A servo motor is fixedly connected to the outer wall of the treatment tank 1. Two screw rods 8 with opposite thread directions and coaxial transmission are rotatably installed inside the limiting pressure strip 4. The ends of the two screw rods 8 that are far apart from each other are coaxially fixedly connected to a rotating shaft. The rotating shaft is installed through the treatment tank 1 and sealed at the point where the rotating shaft passes through the treatment tank 1. One part of the rotating shaft is coaxially transmitted to the output shaft of the servo motor.

[0031] In actual operation, the operator can unwind rolled polyester knitted fabric. During unwinding, the fabric passes through several sets of pressing and squeezing components to ensure it is confined within the treatment tank 1 and fully immersed in the dyes and finishing agents. Because the water outlet directions of these components differ, the fabric alternates between them. The rounded corners 5 prevent the fabric from being scratched by the edges of the limiting pressure strips 4 when in contact with them. During this process, a servo motor drives a rotating shaft, which in turn drives the lead screw 8. Since the piston slider 7 is slidably connected to the limiting pressure strip 4, it does not rotate within the strip. With the opposite screw 8 setting, the two piston sliders 7 can move synchronously towards or away from each other. When the two piston sliders 7 move towards each other at the same time, the space between the two piston sliders 7 will shrink, allowing the dye and finishing agent in the treatment tank 1 to enter the limiting pressure strip 4 through the inlet check valve 9 under the influence of pressure difference. The inlet check valve 9 restricts the dye and finishing agent from leaving. When the two piston sliders 7 move away from each other, the space between the two piston sliders 7 will increase, and the piston sliders 7 will then force the dye and finishing agent to enter the space between the two piston sliders 7 through the water-blowing check valve 10. When the two piston sliders 7 move towards each other again, the dye and finishing agent can be squeezed out from the water outlet 6. Since the diameter of the water outlet 6 is reduced, the water flow formed by the dye and finishing agent leaving the self-pressing cloth squeezing water assembly will have a certain pressure and flow rate to impact the polyester knitted fabric and penetrate it, thereby ensuring that the polyester knitted fabric can be fully saturated with dye and finishing agent inside and out, and accelerating the progress of its same bath finishing.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A polyester knit fabric one bath finishing apparatus, characterized by, The system includes a treatment tank (1), which is equipped with several sets of fabric pressing and squeezing components at different horizontal heights. The several sets of fabric pressing and squeezing components are spaced apart along the length of the treatment tank (1). The treatment tank (1) is filled with dyes and finishing agents. The fabric pressing and squeezing components guide the dyes and finishing agents in the treatment tank (1) into it and form a water flow to leave. The water outlet directions of adjacent fabric pressing and squeezing components are arranged in opposite directions.

2. The polyester knitted fabric finishing equipment according to claim 1, characterized in that, The pressing and squeezing assembly includes a tubular limiting pressure strip (4) and two piston sliders (7) that move back and forth within the limiting pressure strip (4). Several water outlet holes (6) are provided on the top or bottom surface of the limiting pressure strip (4). The two piston sliders (7) move towards or away from each other simultaneously. Inlet holes communicating with the interior are provided on the side walls at both ends of the limiting pressure strip (4). A water inlet check valve (9) is fixedly connected in the inlet hole. A through hole is provided on the side of the piston sliders (7) facing each other. A water-blowing check valve (10) is fixedly connected in the through hole. The water-blowing check valve (10) can guide the dye and finishing agent entering the limiting pressure strip (4) into the space between adjacent piston sliders.

3. A polyester knitted fabric one bath finishing apparatus according to claim 2, wherein The diameter of the water outlet (6) is set to gradually decrease from the inside to the outside.

4. A polyester knitted fabric one bath finishing apparatus according to claim 2, wherein Several of the water outlet holes (6) are evenly spaced along the length of the limiting pressure strip (4).

5. A polyester knitted fabric one bath finishing apparatus according to claim 2, wherein The top or bottom edge of the limiting strip (4) is provided with rounded corners (5).

6. A polyester knitted fabric one bath finishing apparatus according to claim 2, wherein The two ends of the limiting pressure strip (4) are fixedly connected to the inner wall of the treatment pool (1). A servo motor is fixedly connected to the outer wall of the treatment pool (1). Two screws (8) with opposite thread directions and coaxial transmission are rotatably arranged inside the limiting pressure strip (4). The ends of the two screws (8) that are far apart from each other are coaxially fixedly connected to a rotating shaft. The rotating shaft passes through the treatment pool (1) and is sealed at the point where the rotating shaft passes through the treatment pool (1). One part of the rotating shaft is coaxially transmitted to the output shaft of the servo motor.

7. A polyester knitted fabric one bath finishing apparatus according to claim 1, wherein It also includes a base frame (2) and a base (3), wherein the processing pool (1) is fixedly connected to the base frame (2) and the base frame (2) is fixedly connected to the base (3).

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