Yarn fault monitoring device for blended yarn spooling

Abstract

The utility model relates to a blended yarn spooling yarn fault monitoring device which comprises a pipe body, the pipe wall at one end of the pipe body protrudes outwards to form a first annular containing cavity, the pipe wall at the other end of the pipe body protrudes outwards to form a second annular containing cavity, and the outer pipe wall of the first annular containing cavity is wrapped with a constant-temperature heater. A mounting hole is formed in the pipe wall of the second annular containing cavity, a temperature sensor is inserted into the mounting hole, and the temperature sensor is electrically connected with the controller.

Description

Technical Field

[0001] This utility model relates to the field of winding technology, and specifically to a device for monitoring yarn defects during the winding of blended yarn. Background Technology

[0002] Electronic yarn clearers are divided into two types: photoelectric and capacitive. Photoelectric yarn clearers detect changes in the amount of light blocked by the yarn, which is closer to visual perception. Capacitive yarn clearers detect changes in the mass per unit length of the yarn, indirectly reflecting the size of the yarn cross-section. When using photoelectric yarn clearers, it is very easy to miss flat yarn defects, while when using capacitive yarn clearers, uneven yarn blending can easily lead to false detections. Utility Model Content

[0003] To address the aforementioned technical deficiencies, this invention provides a device for monitoring defects in the winding of blended yarn, which can effectively monitor the fineness of blended yarn.

[0004] This utility model discloses a device for monitoring yarn defects in blended yarn winding, comprising a tube body, with one end of the tube wall protruding outward to form a first annular receiving cavity, and the other end of the tube wall protruding outward to form a second annular receiving cavity. A constant temperature heater is wrapped around the outer tube wall of the first annular receiving cavity, and an installation hole is provided on the tube wall of the second annular receiving cavity. A temperature sensor is inserted into the installation hole, and the temperature sensor is electrically connected to a controller.

[0005] The principle of this invention is as follows: a constant-temperature heater heats the first annular cavity. When the yarn is conveyed in the tube, the direction of yarn conveying should be from the first annular cavity to the second annular cavity. The diameter of the yarn should be slightly smaller than the inner diameter of the tube. When the yarn thickness is uniform, the temperature detected by the temperature sensor is stable. When a thinner segment or flat yarn defect passes through the tube, the thinner segment or flat yarn defect, relative to the uniform yarn thickness, will carry more hot air from the first annular cavity into the second annular cavity, thus the temperature detected by the temperature sensor will rise. When a thicker segment of yarn passes through the tube, the thicker segment, relative to the uniform yarn thickness, will carry less hot air from the first annular cavity into the second annular cavity, thus the temperature detected by the temperature sensor will drop. The controller determines whether there is a defect in the yarn based on the temperature signal detected by the temperature sensor.

[0006] Furthermore, in order to reduce the impact of ambient temperature on the thermostatic heater, an insulation layer is installed on the outside of the thermostatic heater.

[0007] Furthermore, in order to reduce the heating of the second annular cavity by the constant temperature heater, and at the same time reduce the heat loss of the hot air carried during yarn transport, the tube between the first and second annular cavities is made of heat-insulating material.

[0008] The present invention provides a device for monitoring defects in blended yarn winding. Its beneficial effect is that the fineness of the blended yarn affects the temperature change in the second annular cavity, thereby indirectly monitoring the fineness of the blended yarn by monitoring the temperature change through a temperature sensor. Attached Figure Description

[0009] Figure 1 This is a front view of Embodiment 1 of the present utility model;

[0010] Figure 2 This is a front view and cross-sectional view of Embodiment 1 of this utility model;

[0011] Figure 3 This is a schematic diagram illustrating the use of Embodiment 1 of this utility model;

[0012] Figure 4 This is a schematic diagram illustrating the use of Embodiment 1 of this utility model;

[0013] Figure 5 This is a schematic diagram illustrating the use of Embodiment 1 of this utility model. Detailed Implementation

[0014] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0015] Example 1:

[0016] like Figure 1 , 2 As shown, this utility model discloses a device for monitoring yarn defects in blended yarn winding, including a tube body 1. One end of the tube body 1 has an outward protrusion of the tube wall to form a first annular receiving cavity 7, and the other end of the tube body 1 has an outward protrusion of the tube wall to form a second annular receiving cavity 2. The tube body between the first annular receiving cavity 7 and the second annular receiving cavity 2 is made of heat insulation material 4. A constant temperature heater 6 is wrapped on the outer tube wall of the first annular receiving cavity 7, and a heat insulation layer 5 is provided on the outer side of the constant temperature heater 6. An installation hole is provided on the tube wall of the second annular receiving cavity 2, and a temperature sensor 3 is inserted into the installation hole. The temperature sensor 3 is electrically connected to the controller.

[0017] The principle of this invention is as follows: the constant temperature heater 6 heats the first annular cavity 7. When the yarn 8 is conveyed inside the tube 1, the direction of conveying the yarn 8 should be from the first annular cavity 7 to the second annular cavity 2. The diameter of the yarn 8 should be slightly smaller than the inner diameter of the tube 1. Figure 3 As shown, when the yarn 8 is of uniform thickness, the temperature detected by the temperature sensor 3 is stable, as... Figure 4As shown, when the finer segments or flat defects of yarn 8 pass through the tube 1, and the finer segments or flat defects of yarn 8 are relatively uniform in thickness compared to yarn 8, they will carry more hot air from the first annular cavity 7 into the second annular cavity 2, thus causing the temperature detected by the temperature sensor 3 to rise. Figure 5 As shown, when the thicker section of yarn 8 passes through tube 1, the thicker section of yarn 8 will carry less hot air from the first annular cavity 7 into the second annular cavity 2 when the yarn 8 is of uniform thickness. As a result, the temperature detected by temperature sensor 3 will drop. The controller determines whether there is a defect in yarn 8 based on the temperature signal detected by temperature sensor 3.

Claims

1. A device for monitoring defects in blended yarn winding, characterized in that, The tube includes a tube body (1), one end of which has a tube wall that protrudes outward to form a first annular cavity (7), and the other end of which has a tube wall that protrudes outward to form a second annular cavity (2). The outer tube wall of the first annular cavity (7) is wrapped with a constant temperature heater (6), and the tube wall of the second annular cavity (2) is provided with an installation hole. A temperature sensor (3) is inserted into the installation hole and is electrically connected to the controller.

2. The device for monitoring defects in blended yarn winding according to claim 1, characterized in that, An insulation layer (5) is provided on the outside of the constant temperature heater (6).

3. The device for monitoring defects in blended yarn winding according to claim 2, characterized in that, The tube between the first annular cavity (7) and the second annular cavity (2) is made of heat-insulating material (4).

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