Chain type drying room

Abstract

The utility model discloses a chain type drying room, it includes drying room body and chain track, two chain tracks are parallel and are arranged in the drying room body, and the front end of chain track stretches out from cloth inlet end, and the chain track is installed with upper needle accessory, the front end of each chain track all is installed with a vortex tube, the vortex tube has compressed air inlet, vortex chamber, cold air outlet and hot air outlet, compressed air inlet is connected with gas supply pipeline, the hot air outlet is located in the movement direction with cloth direction same side of upper needle accessory and is towards upper needle accessory, and the cold air outlet is located in the movement direction with cloth direction opposite side of upper needle accessory and is towards upper needle accessory. The chain type drying room of the utility model realizes and utilizes the cold air of vortex tube cold air outlet to the upper needle accessory of drying room body and carries out the cooling, can prolong the service life of upper needle accessory, and preheats to the upper needle accessory of the hot air of entering drying room body and blowing.

Description

Technical Field

[0001] This utility model relates to the field of printing and dyeing machinery and equipment, and in particular to a chain drying room. Background Technology

[0002] Throughout the dyeing and finishing process, chain drying ovens (drying machines / setting machines) are used to stretch, dry, and set the fabric to ensure it is dry and has a stable width, according to the processing requirements. A chain drying oven typically consists of the oven body and two tracks, left and right. Each track has a rotating chain assembly. The chain assembly is fixed to both ends of the fabric via mounting brackets (usually needle plates and fabric clips). When the left and right tracks are pulled outwards, the fabric is stretched to the desired width.

[0003] Because the chain assembly circulates between the oven and the fabric inlet / outlet areas, it carries a very high temperature to these areas. When the chain assembly, heated to a high temperature in the oven, moves to the fabric inlet area, the hot needle plate on the chain assembly can burn the needle brush wheel and rubber wheel, among other needle attachments. Furthermore, when the fabric fails to be needled (needle slippage), the operator needs to manually hold the fabric and needle it, at which point the hot needle plate can easily burn the operator. Utility Model Content

[0004] The purpose of this invention is to provide a chain drying room.

[0005] The technical solution to achieve the purpose of this utility model is: a chain drying oven, which includes a drying oven body and two chain tracks respectively installed on both sides of the fabric width direction. The two chain tracks are parallel to each other and pass through the drying oven body. The drying oven body has a fabric inlet end. The front end of each chain track extends from the fabric inlet end. A needle attachment is installed on the chain track. A vortex tube is installed at the front end of each chain track. The vortex tube has a compressed air inlet, a vortex chamber, a cold air outlet, and a hot air outlet. The compressed air inlet is connected to an air source pipe. The hot air outlet is located on the side where the movement direction of the needle attachment is in the same direction as the fabric inlet direction and faces the needle attachment. The cold air outlet is located on the side where the movement direction of the needle attachment is opposite to the fabric inlet direction and faces the needle attachment.

[0006] Furthermore, each of the chain tracks is equipped with several vortex tubes at its front end, and the vortex tubes are arranged parallel to each other along the feeding direction.

[0007] The chain drying oven of this invention utilizes the cold air from the cold air outlet of the vortex tube to cool the needle attachments exiting the drying oven body, which can extend the service life of the needle attachments. At the same time, it blows hot air to preheat the needle attachments entering the drying oven body, avoiding the low-temperature needle plate from absorbing heat and generating energy consumption after entering the drying oven. In addition, the hot air can preheat the sizing fabric hanging on the needle plate in advance, allowing the sizing in the fabric to heat up and solidify in advance, which helps the fabric to be firmly attached to the needle plate and reduces the risk of needle detachment. Attached Figure Description

[0008] Figure 1 This is a top view of the chain drying room described in an embodiment of the present invention; wherein, the arc-shaped arrow represents the rotation direction of the chain track, and the hollow arrow represents the fabric feeding direction;

[0009] Figure 2 for Figure 1 A schematic diagram of the AA-direction cross-section structure. Detailed Implementation

[0010] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0011] like Figure 1 and Figure 2 As shown, a chain drying oven includes a drying oven body 1 and two chain tracks 2 respectively installed on both sides of the fabric 100 in the width direction. The two chain tracks 2 are parallel to each other and pass through the drying oven body 1. The drying oven body 1 has a fabric inlet end 11. The front end of each chain track 2 extends from the fabric inlet end 11. A needle attachment 21 is installed on the chain track 2. A vortex tube 3 is installed at the front end of each chain track 2. The vortex tube 3 has a compressed air inlet 31, a vortex chamber 32, a cold air outlet 33, and a hot air outlet 34. The compressed air inlet 31 is connected to an air source (not shown) pipe. The hot air outlet 34 is located on the side where the movement direction of the needle attachment 21 is in the same direction as the fabric inlet direction and faces the needle attachment 21. The cold air outlet 33 is located on the side where the movement direction of the needle attachment 21 is opposite to the fabric inlet direction and faces the needle attachment 21.

[0012] During operation, high-pressure compressed air (typically 0.3-0.8 MPa) is injected at high speed into the cylindrical vortex chamber through a tangential nozzle at the compressed air inlet. Due to the initial velocity in the tangential direction, the airflow forms a strong free vortex within the vortex chamber. The airflow near the vortex chamber wall is subjected to centrifugal force, which intensifies molecular motion and increases the collision frequency, converting kinetic energy into heat energy. This forms a hot airflow that is ejected from the hot air outlet, causing the temperature of the needle attachments on the side entering the drying chamber to rise. This preheats the sizing fabric hanging on the needle plate, allowing the sizing in the fabric to heat up and solidify in advance, which helps the fabric to be securely attached to the needle plate and reduces the risk of needle slippage. The airflow in the central region is driven by the friction of the outer airflow to form a secondary vortex that rotates in the opposite direction. After the inner airflow transfers energy to the outer airflow, the molecules expand and do work, reducing the internal energy and causing the temperature to drop sharply, forming a cold airflow that is ejected from the cold air outlet. This causes the temperature of the needle attachments on the side exiting the drying chamber to drop, extending the service life of the needle attachments.

[0013] The number of vortex tubes described in this invention can be set as needed to achieve the best cooling and preheating effect; the chain track structure is existing technology and will not be described in detail here.

[0014] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent process transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A chain drying oven, comprising a drying oven body and two chain tracks respectively installed on both sides of the fabric width direction, the two chain tracks being parallel to each other and passing through the drying oven body, the drying oven body having a fabric inlet end, the front end of each chain track extending from the fabric inlet end, and a needle attachment installed on each chain track; characterized in that: Each of the chain tracks is equipped with a vortex tube at its front end. The vortex tube has a compressed air inlet, a vortex chamber, a cold air outlet, and a hot air outlet. The compressed air inlet is connected to an air source pipe. The hot air outlet is located on the side where the movement direction of the upper needle attachment is in the same direction as the fabric feeding direction and faces the upper needle attachment. The cold air outlet is located on the side where the movement direction of the upper needle attachment is opposite to the fabric feeding direction and faces the upper needle attachment.

2. The chain drying oven according to claim 1, characterized in that: Each of the chain tracks has several vortex tubes installed at its front end, and the vortex tubes are arranged parallel to each other along the feeding direction.

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