Low-temperature polyester yarn steaming and dyeing vat with water-saving level dyeing cavity

Abstract

The utility model belongs to the technical field of yarn steaming and dyeing equipment, and particularly relates to a polyester yarn low-temperature steaming and dyeing vat with a water-saving level dyeing cavity. A low-temperature polyester yarn steaming and dyeing cylinder with a water-saving level dyeing cavity comprises a main steaming and dyeing cylinder and an auxiliary steaming and dyeing cylinder, and the auxiliary steaming and dyeing cylinder is located above the main steaming and dyeing cylinder. A plurality of conveying pipes are arranged at the bottom of the auxiliary steaming and dyeing barrel and are connected to the top of the main steaming and dyeing barrel; an air pressure balance pipeline is arranged at the auxiliary steaming and dyeing barrel and extends into the main steaming and dyeing barrel.

Description

Technical Field

[0001] The utility model belongs to the technical field of yarn steaming and dyeing equipment, and in particular relates to a polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling dyeing chamber. Background Art

[0002] Low-temperature steaming and dyeing of polyester yarn is a special dyeing process, which is mainly used for polyester and its blended or interwoven fabrics. Because some fibers, such as wool, acrylic, nylon and spandex, are prone to hydrolysis and bond breaking, shrinkage and deformation under high temperature conditions, and some dyes may also cause hydrolysis and ionization at high temperatures, resulting in color change, unstable color light and light color. Therefore, these fabrics usually use low-temperature dyeing technology. The principle of low-temperature steaming and dyeing of polyester yarn is mainly to increase the plasticization and swelling degree of polyester fiber, reduce the glass transition temperature of polyester fiber, thereby accelerating the diffusion speed of disperse dyes in the fiber and improving the dyeing rate. The environmentally friendly and odorless carrier used in this process, such as DM-2308, is a complex of non-toxic and harmless aromatic compounds and various surfactants, and does not contain APEO, formaldehyde, heavy metals, organic halides and other harmful substances.

[0003] During the steam-dyeing process, the dye colors the polyester yarn by evaporation and diffusion, and the liquid level of the dye in the cylinder usually needs to be lower than the height of the polyester yarn, so there is less dye in the cylinder in the initial stage. As the steam-dyeing progresses, the liquid level of the steam-dyeing cylinder gradually decreases. During the steam-dyeing process, it is necessary to replenish the material many times, and at the same time, it is necessary to pay attention to not replenishing too much liquid, and always keep the liquid level below the height of the polyester yarn. However, the air pressure in the cylinder is relatively high during steam-dyeing, and the required replenishment device when replenishing liquid from the outside is relatively high, and usually a high-pressure infusion pump is required. In order to solve the replenishment problem during the steam-dyeing process, the utility model hopes to provide a polyester yarn low-temperature steam-dyeing cylinder with a water-saving and leveling chamber. Utility Model Content

[0004] The utility model aims to provide a polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber comprises a main steaming and dyeing cylinder and an auxiliary steaming and dyeing cylinder, wherein the auxiliary steaming and dyeing cylinder is located above the main steaming and dyeing cylinder; a plurality of feed pipes are arranged at the bottom of the auxiliary steaming and dyeing cylinder, and the feed pipes are connected to the top of the main steaming and dyeing cylinder; an air pressure balance pipeline is arranged at the auxiliary steaming and dyeing cylinder, and the air pressure balance pipeline extends into the interior of the main steaming and dyeing cylinder.

[0007] Preferably, a slide groove is provided at the side wall of the main steaming and dyeing cylinder, and a yarn placement frame is provided at the slide groove.

[0008] Preferably, the yarn placement frame comprises an outer frame, and a plurality of placement rods parallel to each other are arranged inside the outer frame.

[0009] Preferably, a side door is provided at the opening of the main steaming and dyeing cylinder, and a water baffle is provided at the opening of the main steaming and dyeing cylinder, and the water baffle is located on the inner side of the side door.

[0010] Preferably, a feeding ball head is provided at the bottom of the feeding pipe, and a plurality of feeding needle holes are provided on the surface of the feeding ball head, and the feeding needle holes cover the surface of the feeding ball head.

[0011] Preferably, the connection point between the air pressure balance pipeline and the auxiliary steaming and dyeing cylinder is located at the top of the auxiliary steaming and dyeing cylinder.

[0012] Preferably, a feeding port is provided on the top of the auxiliary steaming and dyeing cylinder.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model provides a polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber. The main steaming and dyeing cylinder and the auxiliary steaming and dyeing cylinder are designed to achieve liquid level balance in the main steaming and dyeing cylinder and the auxiliary steaming and dyeing cylinder by means of the principle of air pressure balance. No additional high-pressure infusion pump is required, so that when the liquid level in the main steaming and dyeing cylinder reaches balance, it is always maintained at a fixed liquid level height;

[0015] (2) The utility model provides a polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber. A feed ball head is provided at the bottom of the feed pipe. The surface of the feed ball head is covered with a plurality of feed pinholes. The feed pinholes have a small diameter and are relatively insensitive to air pressure differences. When the air pressure difference between the auxiliary steaming and dyeing cylinder and the main steaming and dyeing cylinder is significantly different, the added dye will fall from the feed pinholes, and the liquid replenishment process is relatively smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a partial structural schematic diagram of the utility model;

[0019] In the figure: 1. Main steaming and dyeing cylinder; 2. Auxiliary steaming and dyeing cylinder; 3. Feeding pipe; 4. Feeding ball head; 5. Feeding pinhole; 6. Air pressure balance pipeline; 7. Feeding port; 8. Slide; 9. Yarn placement rack; 10. Outer frame; 11. Placement rod; 12. Side door; 13. Water baffle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] A polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and uniform dyeing chamber comprises a main steaming and dyeing cylinder 1 and an auxiliary steaming and dyeing cylinder 2, wherein the auxiliary steaming and dyeing cylinder 2 is located above the main steaming and dyeing cylinder 1 and is used to replenish the main steaming and dyeing cylinder 1. Two feeding pipes 3 are provided at the bottom of the auxiliary steaming and dyeing cylinder 2, and the feeding pipes 3 are connected to the top of the main steaming and dyeing cylinder 1. A feeding ball head 4 is provided at the bottom of the feeding pipe 3, and a plurality of feeding pinholes 5 are provided on the surface of the feeding ball head 4, and the feeding pinholes 5 cover the surface of the feeding ball head 4. The diameter of the feeding pinholes 5 is small, and the liquid at the feeding pinholes 5 has a large surface tension and is relatively insensitive to the pressure difference. At the same time, the replenishment from the auxiliary steaming and dyeing cylinder 2 to the main steaming and dyeing cylinder 1 is relatively smooth and stable. The droplets falling from the feeding pinholes 5 can be evaporated quickly, reducing the time of falling on the yarn, so that the yarn is steamed and dyed more evenly. In order to balance the upper and lower air pressures, an air pressure balance pipeline 6 is provided at the auxiliary steaming and dyeing cylinder 2, and the other end of the air pressure balance pipeline 6 extends into the interior of the main steaming and dyeing cylinder 1. The connection between the air pressure balance pipeline 6 and the auxiliary steaming and dyeing cylinder 2 is located at the top of the auxiliary steaming and dyeing cylinder 2. The other end of the air pressure balance pipeline 6 extends into the interior of the main steaming and dyeing cylinder 1, and its opening is flush with the liquid level in the main steaming and dyeing cylinder 1. In order to facilitate the feeding of materials into the auxiliary steaming and dyeing cylinder 2, a feeding port 7 is provided at the top of the auxiliary steaming and dyeing cylinder 2.

[0022] A chute 8 is provided at the side wall of the main steaming and dyeing cylinder 1, and a yarn placement frame 9 is provided at the chute 8. The yarn placement frame 9 includes an outer frame 10, and a plurality of placement rods 11 parallel to each other are provided inside the outer frame 10, and the placement rods 11 are used to place the polyester yarn. A side door 12 and a water baffle 13 are provided at the opening of the main steaming and dyeing cylinder 1, and the water baffle 13 is located on the inner side of the side door 12.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber, characterized in that: The invention comprises a main steaming and dyeing cylinder and an auxiliary steaming and dyeing cylinder, wherein the auxiliary steaming and dyeing cylinder is located above the main steaming and dyeing cylinder; a plurality of material conveying pipes are arranged at the bottom of the auxiliary steaming and dyeing cylinder, and the material conveying pipes are connected to the top of the main steaming and dyeing cylinder; an air pressure balancing pipeline is arranged at the auxiliary steaming and dyeing cylinder, and the air pressure balancing pipeline extends into the interior of the main steaming and dyeing cylinder.

2. The polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber according to claim 1, characterized in that: A slide groove is arranged on the side wall of the main steaming and dyeing cylinder, and a yarn placing frame is arranged on the slide groove.

3. The polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber according to claim 2, characterized in that: The yarn placement frame comprises an outer frame, and a plurality of placement rods parallel to each other are arranged inside the outer frame.

4. The polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber according to claim 1, characterized in that: A side door is arranged at the opening of the main steaming and dyeing cylinder, and a water baffle is arranged at the opening of the main steaming and dyeing cylinder, and the water baffle is located at the inner side of the side door.

5. The polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber according to claim 1, characterized in that: A feeding ball head is arranged at the bottom of the feeding pipe, and a plurality of feeding needle holes are arranged on the surface of the feeding ball head, and the feeding needle holes are distributed all over the surface of the feeding ball head.

6. The polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber according to claim 1, characterized in that: The connection point between the air pressure balance pipeline and the auxiliary steaming and dyeing cylinder is located at the top of the auxiliary steaming and dyeing cylinder.

7. The polyester yarn low-temperature steaming and dyeing cylinder with a water-saving and leveling chamber according to claim 1, characterized in that: A feeding port is arranged on the top of the auxiliary steaming and dyeing cylinder.

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