A cashmere combing machine front-end waste collection device

Abstract

This utility model belongs to the technical field of cashmere combing equipment, specifically relating to a front-end waste recovery device for a cashmere combing machine. This front-end waste recovery device includes a licker-in roller disposed between the feed roller and the combing machine cylinder. An arc-shaped air duct is arranged along the tangential direction between the feed roller and the licker-in roller and / or the tangential direction between the licker-in roller and the cylinder. The other end of the arc-shaped air duct is tangential to an air supply pipe. One end of the air supply pipe is connected to a first air pump, and the other end is connected to the tangential air inlet of a cyclone separator. This front-end waste recovery device for a cashmere combing machine can fully recover cashmere combing waste, thoroughly separate residual wool fibers, significantly improve the wool extraction rate, and features simple structure, convenient use, and good economic benefits.

Description

Technical Field

[0001] This utility model belongs to the technical field of cashmere combing equipment, specifically relating to a cashmere combing machine front-end waste recovery device. Background Technology

[0002] Cashmere carding machines are essential equipment in cashmere processing. Their structure mainly consists of a front-end licker-in roller, a central main cylinder and cover plate system, and a rear-end doffer. Before carding, the wool needs to be opened. Loose cashmere raw materials are fed evenly and continuously into the front of the carding machine via feed rollers. The licker-in roller removes impurities such as burrs, dander, and sand particles, and then the cashmere enters the cylinder for carding.

[0003] As cashmere processing becomes increasingly refined, a certain amount of coarse and fine wool fibers, which were previously separated by licker-in, are not recycled or reprocessed. This undoubtedly limits the cashmere extraction rate and causes a waste of resources. Utility Model Content

[0004] The purpose of this utility model is to provide a cashmere combing machine front-end waste recovery device, which features full recovery of cashmere combing waste, thorough separation of wool fibers, and significantly improved wool extraction rate.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A cashmere carding machine front-end waste recovery device is characterized by: including a licker-in roller disposed between the feed roller and the carding machine cylinder, wherein an arc-shaped air duct is provided in the tangential direction between the feed roller and the licker-in roller and / or the tangential direction between the licker-in roller and the cylinder, the other end of the arc-shaped air duct is tangent to an air supply pipe, one end of the air supply pipe is connected to a first air pump, and the other end is connected to the tangential air inlet of a cyclone separator.

[0007] Additional technical features constituting the above-mentioned cashmere combing machine front-end waste collection device also include:

[0008] —The cross-section of the arc-shaped air duct is rectangular and has a constricted structure. Its large end is equivalent to the axial length of the burr roller, and its small end is equivalent to the width of the air supply duct.

[0009] —The licker-in roller is configured as a roller with a surface covered with metal needle cloth, which forms a pre-combing working roller relative to the combing machine cylinder;

[0010] —The cyclone separator includes a cyclone tube, which is composed of an upper cylindrical tube and a lower conical tube. The cylindrical tube is provided with a tangential air inlet on its side, and the bottom of the conical tube is provided with a dust collection hopper for collecting impurities in the wool combing material. An exhaust pipe is provided above the cylindrical tube for recovering coarse and fine hairs in the wool combing material.

[0011] —The exhaust pipe is connected to the negative pressure duct, and the negative pressure duct is connected to the second air pump.

[0012] Compared with the prior art, the cashmere carding machine front-end waste recovery device provided by this utility model has the following advantages: This device uses an arc-shaped air duct set in the tangential direction between the feed roller and the licker-in roller and / or the tangential direction between the licker-in roller and the cylinder to receive the carding waste thrown out by the licker-in roller. In addition to impurities such as grass thorns, skin flakes, and sand particles that have no utilization value, the carding waste also contains a certain amount of wool fibers. The carding waste enters the air supply pipe tangentially through the arc-shaped air duct and is carried into the cyclone separator by the high-speed airflow blown by the first air pump. Through the centrifugal separation action of the cyclone, the heavier impurities spiral down along the inner wall, while the relatively lighter wool fibers are discharged upward by the inner spiral airflow, thereby realizing the recovery of wool fibers. After the second carding process, the wool extraction rate is significantly improved, and the economic benefits of cashmere processing are also increased. It has the advantages of simple structure, convenient use, economy and durability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a cashmere combing machine front-end waste collection device according to the present invention. Detailed Implementation

[0014] The structure and working principle of the cashmere combing machine front-end waste collection device provided by this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] In the description of this utility model, unless otherwise stated, the terms "front / rear", "upper / lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "set / equipped" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] like Figure 1 As shown, the structure of the cashmere carding machine front-end waste recovery device includes a licker-in roller 3 disposed between the feed roller 1 and the carding machine cylinder 2. An arc-shaped air duct 4 is disposed in the tangential direction between the feed roller 1 and the licker-in roller 3 and / or the tangential direction between the licker-in roller 3 and the cylinder 2. The other end of the arc-shaped air duct 4 is tangent to the air supply pipe 5. One end of the air supply pipe 5 is connected to the first air pump 61, and the other end is connected to the tangential air inlet 73 of the cyclone separator 7.

[0018] Its working principle is as follows: An arc-shaped air duct 4 is set in front of the licker roller 3 and tangentially to the feed roller 1 and / or behind the licker roller 3 and tangentially to the cylinder 2. It is used to collect the combing debris thrown out by the licker roller 3, including grass thorns, dander, sand and other impurities, as well as a certain amount of wool fibers (coarse and fine wool). The combing debris enters the arc-shaped air duct 4 tangentially. Since the other end of the arc-shaped air duct 4 is connected to the air supply pipe 5, the first air pump 61 generates a high-speed airflow to blow the combing debris to the cyclone separator 7. After entering tangentially, the heavier impurities and the lighter wool fibers are separated. The wool fibers are recycled and combed again, thereby improving the wool extraction rate. The measured coarse wool recovery rate is 98.1%, and the fine wool loss rate is controlled below 1.8%. Compared with the traditional combing process, the wool extraction rate is improved by at least 10% through the recycling of combing debris.

[0019] The device is used in conjunction with existing cashmere combing machines, in which the feeding roller 1, licker-in roller 3, and arc-shaped air duct 4 are all installed on the frame of the combing machine.

[0020] In the structure constituting the aforementioned cashmere combing machine front-end waste collection device

[0021] —The cross-section of the aforementioned arc-shaped air duct 4 is rectangular and has a constricted structure. Its large end is equivalent to the axial length of the tack roller 3, and its small end is equivalent to the width of the air supply duct 5. Through the constricted design, it can fully receive the combed droplets and increase the airflow speed by relying on the arc-shaped air duct 4 to achieve the purpose of full recycling.

[0022] — Preferably, the above-mentioned licker-in roller 3 is configured as a roller with a surface covered with metal needle cloth, which forms a pre-combing working roller relative to the carding machine cylinder 2, avoiding damage to wool fibers by the sharp serrations of the traditional licker-in roller 3. The combing effect of the fine needle cloth is gentler than the impact effect of the licker-in roller 3, which can better protect the precious cashmere fibers. It can both loosen and remove impurities, and also achieve the purpose of pre-combing.

[0023] The licker-in roller 3 in this patent is a working roller with a lower rotation speed, finer serrations, or a gentler action, and its action intensity is much lower than that of the cotton spinning licker-in roller 3.

[0024] —Furthermore, the aforementioned cyclone separator 7 can be selected from existing conventional equipment. The main structure includes a cyclone tube, which consists of an upper cylindrical tube 71 and a lower conical tube 72. A tangential air inlet 73 is provided on the side of the cylindrical tube 71, and a dust collection hopper 73 is provided at the bottom of the conical tube 72 to collect impurities in the wool combing material. An exhaust pipe 75 is provided above the cylindrical tube 71 to recover coarse and fine wool in the wool combing material. Based on the difference in specific gravity between impurities and wool, a bidirectional swirling flow is formed in the cyclone tube, with impurities located on the outer circumference and wool located in the center. The separation and recovery of impurities and wool are achieved through the bidirectional swirling flow inside the cyclone tube.

[0025] —To increase the swirling intensity inside the separator, the exhaust pipe 75 is connected to the negative pressure duct 76, which is connected to the second air pump 62. The second air pump 62 generates a suction airflow to the exhaust pipe 75, thereby improving the wool separation efficiency.

[0026] The above-described embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit the implementation of this utility model. Therefore, any other modifications or equivalent substitutions to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A device for recovering waste from the front end of a cashmere carding machine, characterized in that: It includes a licker-in roller disposed between the feed roller and the combing machine cylinder, and an arc-shaped air duct is provided in the tangential direction between the feed roller and the licker-in roller and / or the tangential direction between the licker-in roller and the cylinder. The other end of the arc-shaped air duct is tangent to the air supply pipe. One end of the air supply pipe is connected to a first air pump, and the other end is connected to the tangential air inlet of the cyclone separator.

2. A device for recovering waste from the front end of a cashmere carding machine according to claim 1, characterized in that: The arc-shaped air duct has a rectangular cross-section and a constricted structure. Its large end is equivalent to the axial length of the burr roller, and its small end is equivalent to the width of the air supply duct.

3. A device for recovering the waste from the front end of a cashmere carding machine according to claim 1, characterized in that: The licker-in roller is configured as a roller with a surface covered with metal needle cloth, which forms a pre-combing working roller relative to the combing machine cylinder.

4. A device for recovering the waste from the front end of a cashmere carding machine according to claim 1, characterized in that: The cyclone separator includes a cyclone tube, which is composed of an upper cylindrical tube and a lower conical tube. The cylindrical tube is provided with a tangential air inlet on its side, and the bottom of the conical tube is provided with a dust collection hopper for collecting impurities in the wool combing material. An exhaust pipe is provided above the cylindrical tube for recovering coarse and fine wool in the wool combing material.

5. A device for recovering the waste from the front end of a cashmere carding machine according to claim 4, characterized in that: The exhaust pipe is connected to a negative pressure duct, which is connected to a second air pump.

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