阅读说明：本技术 一种纱线成像装置及其成像方法 (Yarn imaging device and imaging method thereof ) 是由 张缓缓 赵妍 严凯 李仁忠 景军锋 李鹏飞 苏泽斌 于 2019-09-29 设计创作，主要内容包括：本发明提供一种纱线成像装置,包括密封箱体,密封箱体的顶板内壁为深色,密封箱体的侧板a上设置有导纱装置a,与侧板a相对的侧板b上设置有导纱装置b,导纱装置a与导纱装置b之间能够形成纱线轨道；密封箱体内底部固定有光源和收线轮,光源设置在纱线轨道的正下方,光源上固定连接有图像数字化设备,收线轮上通过电机驱动,还包括有置线装置,置线装置靠近侧板a。本发明还提供一种纱线成像方法。本发明获取的纱线图像其纱线条干更准确、其毛羽走向更清晰。(The invention provides a yarn imaging device, which comprises a sealed box body, wherein the inner wall of a top plate of the sealed box body is dark, a yarn guide device a is arranged on a side plate a of the sealed box body, a yarn guide device b is arranged on a side plate b opposite to the side plate a, and a yarn track can be formed between the yarn guide device a and the yarn guide device b; the bottom is fixed with light source and take-up pulley in the sealed box, and the light source setting is under the yarn track, fixedly connected with image digitization equipment on the light source, and motor drive is passed through on the take-up pulley, still including the traditional thread binding putting, the traditional thread binding putting is close to curb plate a. The invention also provides a yarn imaging method. The yarn line image obtained by the invention has more accurate yarn evenness and clearer hairiness trend.)

1. The yarn imaging device is characterized by comprising a sealed box body (10), wherein the inner wall of a top plate (4) of the sealed box body (10) is dark, a yarn guide device a is arranged on a side plate a of the sealed box body (10), a yarn guide device b is arranged on a side plate b opposite to the side plate a, and a yarn track can be formed between the yarn guide device a and the yarn guide device b;

a light source (5) and a take-up pulley (9) are fixed at the bottom in the sealed box body (10), the light source (5) is arranged right below the yarn track, an image digitization device (6) is fixedly connected to the light source (5), and the take-up pulley (9) is driven by a motor (8);

the device also comprises a line placing device, wherein the line placing device is close to the side plate a.

2. A yarn imaging device as in claim 1,

the yarn guide device b is fixed on the inner wall of the side plate b and comprises a yarn guide wheel d (13) and a winding roller (14), and the yarn guide wheel d (13) is arranged above the winding roller (14).

3. A yarn imaging device as in claim 1,

the wire placing device comprises a base (1) and a wire placing rod (7) fixed on the base (1), wherein one end of the base (1) is fixed at the bottom of the side plate a;

the yarn guide device a comprises a yarn guide wheel a (3), the yarn guide wheel a (3) is arranged at the top of the yarn placing rod (7), and the yarn guide wheel a (3) and the yarn placing rod (7) are detachable.

4. A yarn imaging device as claimed in claim 3, wherein said yarn guiding means a further comprises a guide roller b (11) and a guide roller c (12), said guide rollers b (11) and c (12) being fixed to the outer wall of said side plate a;

the side plate a is also provided with a line hole a (16), and the line hole a (16) is close to the line guide wheel c (12).

5. Yarn imaging device as in claim 1, characterised in that the inner wall of the top plate (4) is black in colour.

6. Yarn imaging device as in claim 1, characterised in that the yarn path formed between the guide wheel c (12) and the guide wheel d (13) is parallel to the top plate (4);

the image digitization device (6) is an area-array camera, and a signal wire of the area-array camera extends out of the sealed box body (10);

the switch of the motor (8) is arranged outside the sealed box body (10);

the sealed box body (10) is also provided with a switch door.

7. A yarn imaging method is characterized in that the yarn imaging device is adopted to obtain a yarn image, and the method comprises the following specific steps:

step 1, mounting the bobbin sample (2) on a yarn placing device;

step 2, pulling out the yarn (15) on the bobbin sample (2), and then arranging and fixing the yarn on a wire groove of a take-up pulley (9) along the yarn track;

step 3, connecting the area-array camera to a PC (personal computer), setting the photographing interval of the area-array camera on the PC, and setting the movement speed of the yarns through a motor (8);

and 4, simultaneously starting the area-array camera and the motor (8), and obtaining the image collected by the area-array camera through the PC.

8. A yarn imaging method as claimed in claim 7, characterised in that said bobbin sample (2) is mounted in a manner which is: the wire guide wheel a (3) is detached from the wire placing rod (7), the bobbin sample (2) is installed on the wire placing rod (7), and the wire guide wheel a (3) is installed on the wire placing rod (7) again.

9. A yarn imaging method as claimed in claim 7, wherein said step 2 is specifically:

step 2.1, opening a switch door, pulling the yarn (15) of the bobbin sample (2) to sequentially pass through a yarn guide wheel a (3), a yarn guide wheel b (11), a yarn guide wheel c (12), a yarn hole a (16), a yarn guide wheel d (13), a winding roller (14) and a take-up pulley (9) and then fixing the yarn on a wire groove of the take-up pulley (9);

step 2.2, adjusting a winding roller (14) to control the tension of the yarn (15) so that the yarn (15) between the yarn guide wheel c (12) and the yarn guide wheel d (13) is in a stretching state;

and 2.3, tightening the take-up pulley (9), and closing the switch door to acquire the yarn image.

10. The yarn imaging method according to claim 7, wherein the interval between the shots of the area-array camera is set to 0.05 to 0.06 seconds, and the moving speed of the yarn is set to 1.65 to 1.67 meters per second.

Technical Field

The invention belongs to the technical field of yarn detection, relates to a yarn imaging device and further relates to a yarn imaging method.

Background

The measurement of yarn hairiness H value, the measurement of yarn evenness diameter detection device and other yarn related indexes are established on the basis of obtaining accurate yarn images, and the existing yarn imaging equipment cannot accurately shoot the yarn evenness and the hairiness trend, so that the yarn related indexes cannot be effectively measured.

Disclosure of Invention

The invention aims to provide a yarn imaging device, which solves the problem that the existing yarn imaging equipment in the prior art cannot accurately shoot the yarn evenness and the hairiness trend. It is another object of the present invention to provide a yarn imaging method.

One technical solution of the present invention is that,

a yarn imaging device comprises a sealed box body, wherein the inner wall of a top plate of the sealed box body is dark, a yarn guide device a is arranged on a side plate a of the sealed box body, a yarn guide device b is arranged on a side plate b opposite to the side plate a, and a yarn track can be formed between the yarn guide device a and the yarn guide device b;

the wire placing device is arranged on one side, close to the side plate a, outside the sealed box body.

The bottom in the sealed box body is fixed with a light source and a take-up pulley, the light source is arranged under the yarn track, the light source is fixedly connected with an image digitization device, and the take-up pulley is driven by a motor.

The present invention is also characterized in that,

the yarn guide device b is fixed on the inner wall of the side plate b and comprises a yarn guide wheel d and a winding roller, and the yarn guide wheel d is arranged above the winding roller;

the wire placing device comprises a base and a wire placing rod fixed on the base, wherein one end of the base is fixed at the bottom of the side plate a;

the yarn guide device a comprises a yarn guide wheel a, the yarn guide wheel a is arranged at the top of the yarn placing rod, and the yarn guide wheel a and the yarn placing rod are detachable;

the yarn guide device a also comprises a yarn guide wheel b and a yarn guide wheel c, and the yarn guide wheel b and the yarn guide wheel c are both fixed on the outer wall of the side plate a;

the side plate a is also provided with a line hole a which is close to the line guide wheel c.

The color of the inner wall of the top plate is black.

The yarn track formed between the guide wheel c and the guide wheel d is parallel to the top plate;

the image digitization device is an area-array camera, and a signal wire of the area-array camera extends out of the sealed box body;

the switch of the motor is arranged outside the sealed box body;

the sealed box body is also provided with a switch door.

In another technical solution of the present invention,

a yarn imaging method adopts the yarn imaging device to obtain a yarn image, and comprises the following specific steps:

step 1, mounting a bobbin sample on a thread placing device;

step 2, pulling out the yarn on the bobbin sample, arranging the yarn along a yarn rail, and fixing the yarn on a wire casing of a take-up pulley;

step 3, connecting the area-array camera to a PC (personal computer), setting the photographing interval of the area-array camera on the PC, and setting the movement speed of the yarns through a motor;

and 4, simultaneously starting the area-array camera and the motor 8, and obtaining the image acquired by the area-array camera through the PC.

The specific installation mode of the bobbin sample is as follows: and detaching the wire guide wheel a from the wire placing rod, mounting the bobbin sample on the wire placing rod, and remounting the wire guide wheel a on the wire placing rod.

The step 2 specifically comprises the following steps:

step 2.1, opening a switch door, pulling the yarn of the bobbin sample to sequentially pass through a yarn guide wheel a, a yarn guide wheel b, a yarn guide wheel c, a yarn hole a, a yarn guide wheel d, a winding roller and a take-up pulley and then fixing the yarn on a wire groove of the take-up pulley;

step 2.2, adjusting the winding roller to control the tension of the yarn, so that the yarn between the yarn guiding wheel c and the yarn guiding wheel d is in a stretching state;

and 2.3, tightening the take-up pulley, and closing the switch door to acquire the yarn image.

The shooting interval of the area-array camera is set to be 0.05-0.06 second, and the movement speed of the yarn is set to be 1.65-1.67 meters per second.

The beneficial effect of the invention is that,

firstly, the imaging environment of the yarn imaging device is in the sealed box body, so that the interference of external light and a large environment is avoided;

the yarn track formed between the guide wheel c and the guide wheel d of the yarn imaging device is parallel to the top plate, so that the uniformity of yarn evenness diameter is ensured;

the winding roller of the yarn imaging device can control the tension of the yarn, so that the yarn is stretched in the sealed box body at proper tension, and the yarn state is good during imaging;

fourthly, the color of the top plate of the yarn imaging device is black, the obtained yarn image boundary is clear, and the measurement of the related indexes of the subsequent yarns is facilitated.

Fifthly, the yarn imaging method is convenient to operate and high in practicability.

Drawings

FIG. 1 is a schematic view of a yarn image forming apparatus according to the present invention;

FIG. 2 is a yarn image a taken by a yarn imaging apparatus and method according to the present invention;

FIG. 3 is a yarn image b taken by a yarn imaging apparatus and method of the present invention;

FIG. 4 is a yarn image c taken by a yarn imaging apparatus and method of the present invention;

fig. 5 is a yarn image d photographed by using a yarn imaging apparatus and an imaging method according to the present invention.

In the figure, 1, a base, 2, a bobbin sample, 3, a yarn guide wheel a, 4, a top plate, 5, a light source, 6, an image digitization device, 7, a yarn placing rod, 8, a motor, 9, a take-up pulley, 10, a sealed box body, 11, a yarn guide wheel b, 12, a yarn guide wheel c, 13, a yarn guide wheel d, 14, a winding roller, 15, yarn and 16, a yarn hole a are arranged.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention discloses a yarn imaging device, which comprises a sealed box body 10, wherein a switch door is arranged on the sealed box body 10, the inner wall of a top plate 4 of the sealed box body 10 is dark, a yarn guide device a is arranged on a side plate a of the sealed box body 10, a yarn guide device b is arranged on a side plate b opposite to the side plate a, and a yarn track can be formed between the yarn guide device a and the yarn guide device b;

the wire placing device is arranged on one side, close to the side plate a, outside the sealed box body.

A light source 5 and a take-up pulley 9 are fixed at the bottom in the sealed box 10, the light source 5 is arranged right below the yarn track, an image digitization device 6 is fixedly connected to the light source 5, the image digitization device 6 is an area-array camera, a signal wire of the area-array camera extends out of the sealed box 10, and the take-up pulley 9 is driven by a motor 8;

the switch of the motor 8 is arranged outside the sealed box body 10.

The inner wall of the top plate 4 is black in color.

Wherein the area-array camera can adopt acA2500-14gm area-array camera of BASLER company.

The wire placing device comprises a base 1 and a wire placing rod 7 fixed on the base 1, wherein one end of the base 1 is fixed at the bottom of the side plate a.

The yarn guide device a comprises a yarn guide wheel a3, a yarn guide wheel a3 is arranged at the top of the yarn placing rod 7, and the yarn guide wheel a3 is detachable from the yarn placing rod 7; the yarn guide device a also comprises a yarn guide wheel b11 and a yarn guide wheel c12, wherein the yarn guide wheel b11 and the yarn guide wheel c12 are fixed on the outer wall of the side plate a. The side plate a is also provided with a line hole a16, and the line hole a16 is adjacent to the line guide wheel c 12;

the yarn guide device b is fixed on the inner wall of the side plate b, the yarn guide device b comprises a yarn guide wheel d13 and a winding roller 14, and the yarn guide wheel d13 is arranged above the winding roller 14.

The yarn path formed between guide wheel c12 and guide wheel d13 is parallel to the top plate 4.

The invention relates to a yarn imaging method, which adopts the yarn imaging device to obtain a yarn image and comprises the following specific steps:

step 1, installing a bobbin sample 2 on a thread placing device, and specifically operating as follows:

the yarn guide wheel a3 is detached from the yarn placing lever 7, the bobbin sample 2 is attached to the yarn placing lever 7, and the yarn guide wheel a3 is reattached to the yarn placing lever 7.

Step 2, after the yarn 15 on the implementing bobbin sample 2 is pulled out, the yarn 15 is arranged along a yarn track and fixed on a wire groove of a take-up pulley 9, and the specific steps are as follows:

step 2.1, firstly opening a switch door, pulling the yarn 15 of the bobbin sample 2 to pass through a yarn guide wheel a3, a yarn guide wheel b11, a yarn guide wheel c12, a yarn hole a16, a yarn guide wheel d13, a winding roller 14 and a take-up pulley 9 in sequence, and then fixing the yarn on a wire groove of the take-up pulley 9;

step 2.2, adjusting the winding roller 14 to control the tension of the yarn 15, so that the yarn 15 between the yarn guide wheel c12 and the yarn guide wheel d13 is in a stretching state;

and 2.3, tightening the take-up pulley 9 and closing the switch door.

Step 3, connecting the area-array camera to a PC (personal computer), setting the shooting interval of the area-array camera on the PC, setting the movement speed of the yarns through a motor 8, setting the shooting interval of the area-array camera to be 0.05-0.06 second, and setting the movement speed of the yarns to be 1.65-1.67 meters per second;

and 4, simultaneously starting the area-array camera and the motor 8, and obtaining the image acquired by the area-array camera through the PC.

In the process of obtaining the yarn image, the motor 8 can drive the take-up pulley 9 and the yarn 15 to move in sequence, at the moment, the yarn 15 is gradually tightened in the take-up pulley 9 according to the yarn track of the bobbin sample 2, the yarn guide pulley a3, the yarn guide pulley b11, the yarn guide pulley c12, the yarn hole a16, the yarn guide pulley d13 and the winding roller 14 to the take-up pulley 9, and during the movement of the yarn 15, the area array camera continuously takes pictures according to the shooting interval to obtain the yarn image and transmits the yarn image to the PC.