Anti-winding device for friction roller

Abstract

A friction roller box comprises a front support and a rear support which are oppositely arranged in the front-back direction, the friction roller extends in the front-back direction and is rotationally installed on the friction roller box, and the wire winding prevention device is installed between the front support and the rear support and located on the left side of the friction roller. The anti-winding device comprises a detection mechanism with a rotating shaft and a detection plate, a torsional spring coaxially sleeving the rotating shaft and an induction adjusting mechanism mounted on the rotating shaft, the rotating shaft is rotationally mounted between the front support and the rear support, the left end of the detection plate is connected with the rotating shaft, the right end of the detection plate is close to the friction roller, and a gap is formed between the right end of the detection plate and the roller surface of the friction roller; the torsion spring is provided with a long supporting arm abutting against the bottom of the friction roller box body and a short supporting arm abutting against the detection plate. The short supporting arm is located on the rotating path, away from the friction roller, of the detection plate around the rotating shaft. The induction adjusting mechanism comprises a base installed on the rotating shaft, a proximity switch installed on the base and a distance adjusting assembly, and the distance adjusting assembly adjusts the size of the gap.

Description

Technical Field

[0001] The present application relates to the technical field of chemical fiber textile equipment, and in particular to an anti-filament entanglement device for a friction roller. Background Art

[0002] During the spinning process of the chemical fiber winding head, the outer diameter surface of the friction roller will often be entangled due to various reasons. If the entangled wire is not cleaned up in time, it will damage the machine and even threaten the life of the operator. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of this application is to provide an anti-wire entanglement device for a friction roller.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: an anti-winding device for a friction roller, wherein the friction roller extends in the front-to-back direction and is rotatably mounted on a friction roller housing, wherein the friction roller housing includes a front support and a rear support arranged opposite to each other, and the anti-winding device is mounted between the front support and the rear support and is located on the left side of the friction roller, and the anti-winding device includes:

[0005] The detection mechanism includes a rotating shaft parallel to the friction roller and a detection plate, wherein the rotating shaft is mounted between the front support and the rear support so as to be rotatable about its own axis. The left end of the detection plate is connected to the rotating shaft, and the right end is close to the upper left portion of the friction roller and has a gap between it and the roller surface of the friction roller.

[0006] a torsion spring coaxially sleeved on the rotating shaft, the torsion spring comprising a long support arm pressed against the bottom of the friction roller housing and a short support arm pressed against the detection plate, the short support arm being located on a rotation path of the detection plate around the rotating shaft away from the friction roller; and

[0007] The induction adjustment mechanism includes a base installed on the rotating shaft, a proximity switch installed on the base, and a distance adjustment component. The sensing surface of the proximity switch faces the friction roller box. The distance adjustment component abuts between the base and the friction roller box to adjust the size of the gap.

[0008] In the above technical solution, it is further preferred that, in the front-to-back direction, the detection plate has a first size, the friction roller has a second size, and the first size is equal to the second size.

[0009] In the above technical solution, it is further preferred that the rotating shaft includes a front rotating shaft and a rear rotating shaft arranged coaxially, the front rotating shaft is located on the front side of the rear rotating shaft, and the detection plate includes a front detection plate installed on the front rotating shaft and a rear detection plate installed on the rear rotating shaft.

[0010] In the above technical solution, it is further preferred that the detection mechanism also includes a front bearing assembly arranged on the front support, a rear bearing assembly arranged on the rear support, and an intermediate bearing assembly fixed on the friction roller box body, the front end portion of the front rotating shaft cooperates with the front bearing assembly, the rear end portion of the rear rotating shaft cooperates with the rear bearing assembly, and the rear end portion of the front rotating shaft and the front end portion of the rear rotating shaft are simultaneously supported on the intermediate bearing assembly.

[0011] In the above technical solution, it is further preferred that the torsion spring is installed on the front shaft and is arranged adjacent to the intermediate bearing assembly.

[0012] In the above technical solution, it is further preferred that the front bearing assembly includes a first retaining ring, a first disc spring and a first bearing arranged in sequence from front to rear, and the first retaining ring, the first disc spring and the first bearing are coaxially sleeved on the front rotating shaft, and the rear bearing assembly includes a second bearing, a second disc spring and a second retaining ring arranged in sequence from front to rear, and the second bearing, the second disc spring and the second retaining ring are coaxially sleeved on the rear rotating shaft.

[0013] In the above technical solution, it is further preferred that the base is connected to the front rotating shaft and the rear rotating shaft at the same time.

[0014] In the above technical solution, it is further preferred that the distance adjustment assembly includes an adjusting bolt and an adjusting nut, one end of the adjusting bolt passes through the base and abuts against the friction roller box, and the other end of the adjusting bolt is fixed to the base through the adjusting nut.

[0015] In the above technical solution, it is further preferred that the proximity switch is parallel to the adjusting bolt.

[0016] In the above technical solution, it is further preferred that the gap is 1-1.5 mm.

[0017] Compared with the prior art, this application achieves the following beneficial effects:

[0018] The anti-wire entanglement device of the present application can promptly detect abnormal wire entanglement on the friction roller, forcing the winding head to stop to clean the waste wire on the friction roller, thereby ensuring the safety of equipment operation and the safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front view of an anti-wire entanglement device provided in an embodiment of the present application;

[0020] Figure 2 For the Figure 1 The cross-sectional view cut along line AA in the figure;

[0021] Figure 3 for Figure 1 A top view of the anti-wire winding device;

[0022] Figure 4 for Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0023] Figure 5 for Figure 3 A partial enlarged schematic diagram of point C in the middle;

[0024] Figure 6 for Figure 3 A local enlarged schematic diagram of point D in the middle.

[0025] Among them: 1. Front detection plate; 2. Rear detection plate; 3. Friction roller; 4. Front rotating shaft; 5. Rear rotating shaft; 6. Front bearing assembly; 61. First retaining ring; 62. First disc spring; 63. First bearing; 7. Rear bearing assembly; 71. Second bearing; 72. Second disc spring; 73. Second retaining ring; 8. Intermediate bearing; 9. Intermediate bearing seat; 10. Friction roller housing; 11. Front support; 12. Rear support; 13. Side plane; 14. Base; 15. Proximity switch; 16. Distance adjustment assembly; 161. Adjusting bolt; 162. Adjusting nut; 17. Torsion spring. DETAILED DESCRIPTION

[0026] In order to describe the technical content, structural features, achieved purposes and effects of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but are not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0027] The present application provides an anti-thread winding device for a friction roller, such as Figure 2As shown, the friction roller 3 is installed upstream of the winding head through the friction roller box 10, and an anti-wire entanglement device is installed on the left side of the friction roller 3. When the wire is entangled on the friction roller 3, the anti-wire entanglement device can sense it in time and stop the winding head, so as to facilitate the cleaning of the waste wire on the friction roller 3.

[0028] like Figure 1-3 As shown, the friction roller box 10 includes a front support 11 and a rear support 12 that are arranged opposite to each other in the front and rear directions. The friction roller 3 extends in the front and rear directions and is rotatably supported on the friction roller box 10. The anti-wire winding device is installed between the front support 11 and the rear support 12 and is located on the left side of the friction roller 3.

[0029] The anti-thread entanglement device includes a detection mechanism, a torsion spring 17, and an inductive adjustment mechanism. The detection mechanism comprises a rotating shaft parallel to the friction roller 3 and a detection plate with a hook-shaped cross-section. The rotating shaft is mounted between the front support 11 and the rear support 12, rotatably about its own axis. The left end of the detection plate is connected to the rotating shaft, and the right end of the detection plate is adjacent to the upper left portion of the friction roller, with a gap d between it and the roller surface of the friction roller 3. The torsion spring 17 is coaxially mounted on the rotating shaft and has a long support arm that presses against the bottom of the friction roller housing 10 and a short support arm that presses against the detection plate. The short support arm is located in the detection plate's rotation path around the rotating shaft, away from the friction roller 3. When the friction roller 3 is entangled with thread, the increased diameter of the friction roller causes the detection plate to rotate away from the friction roller, reducing the distance between the long and short support arms of the torsion spring 17. The induction adjustment mechanism includes a base 14 mounted on the rotating shaft, a proximity switch 15 mounted on the base 14, and a distance adjustment assembly 16. The sensing surface of the proximity switch 15 faces the friction roller housing 10, and the proximity switch 15 is connected to the signal of the drive motor of the winding head. When the friction roller 3 is wound with wire, the diameter of the friction roller 3 carrying the waste wire gradually increases until the waste wire on the roller surface contacts the detection plate. The detection plate is squeezed by the gradually thickening waste wire, overcomes the torque of the torsion spring 17, and rotates counterclockwise with the rotating shaft. The proximity switch 15 mounted on the base 14 moves away from the friction roller housing 10 as the rotating shaft rotates. After the proximity switch 15 moves away from the friction roller housing 10, the power is lost, and the drive motor of the winding head connected to the proximity switch 15 signal stops rotating. The operator cleans the waste wire on the friction roller 3 during the shutdown process. After the waste wire is cleaned, the detection plate is reset by the rebound force of the torsion spring 17, and the winding head and friction roller resume normal operation.

[0030] In the front-to-back direction, the detection plate has a first size, the friction roller 3 has a second size, and the first size is equal to the second size, so that the detection plate can detect the entire width of the friction roller 3, and find the place where the wire is entangled in time to avoid affecting production.

[0031] like Figure 1 、 3As shown, in an embodiment of the present application, the rotating shaft includes a front rotating shaft 4 and a rear rotating shaft 5 that are coaxially arranged, the front rotating shaft 4 is located in front of the rear rotating shaft 5, and the detection plate includes a front detection plate 1 installed on the front rotating shaft 4 and a rear detection plate 2 installed on the rear rotating shaft 5.

[0032] like Figure 3-6 As shown, the detection mechanism also includes a front bearing assembly 6 disposed on the front support 11, a rear bearing assembly 7 disposed on the rear support 12, and an intermediate bearing assembly fixed to the friction roller housing 10. The front end of the front shaft 4 cooperates with the front bearing assembly 6, and the rear end of the rear shaft 5 cooperates with the rear bearing assembly 7. The rear end of the front shaft 4 and the front end of the rear shaft 5 are simultaneously supported on the intermediate bearing assembly. A torsion spring 17 is mounted on the front shaft 4. The torsion spring 17 is located between the shoulder of the front shaft 4 and the intermediate bearing assembly. After the waste silk on the friction roller 3 is removed, the rebound force of the torsion spring 17 itself causes the front shaft 4 and the front detection plate 1 to rotate clockwise to reset. The rear shaft 5 is connected to the front shaft 4 through the base 14 and rotates coaxially and synchronously, thereby driving the rear detection plate 2 to rotate clockwise to reset.

[0033] The front bearing assembly 6 includes a first retaining ring 61, a first disc spring 62, and a first bearing 63, arranged in sequence from front to rear. These first retaining ring 61, first disc spring 62, and first bearing 63 are coaxially mounted on the front shaft 4. The rear bearing assembly 7 includes a second bearing 71, a second disc spring 72, and a second retaining ring 73, arranged in sequence from front to rear. These second bearing 71, second disc spring 72, and second retaining ring 73 are coaxially mounted on the rear shaft 5. The intermediate bearing assembly includes an intermediate bearing seat 9 and an intermediate bearing 8 mounted thereon. The rear end of the front shaft 4 and the front end of the rear shaft 5 are both positioned within and abut against each other within the intermediate bearing 8. The first disc spring 62 and the second disc spring 72 are preloaded toward the center on the front and rear sides. The first retaining ring 61 and the second retaining ring 73 respectively secure the first disc spring 62 and the second disc spring 72, effectively preventing axial movement of the front shaft 4 and the rear shaft 5.

[0034] The base 14 is connected to the front shaft 4 and the rear shaft 5 at the same time, so that the front shaft 4 and the rear shaft 5 rotate synchronously.

[0035] like Figure 2 、 6 As shown, the friction roller housing 10 has a side plane 13 opposite to the sensing surface of the proximity switch 15. When the distance between the sensing surface of the proximity switch 15 and the side plane 13 is greater than a preset distance, the proximity switch 15 loses power.

[0036] The distance adjustment assembly 16 includes an adjusting bolt 161 and an adjusting nut 162. One end of the adjusting bolt 161 passes through the base 14 and abuts against the side plane 13 of the friction roller box 10. The other end of the adjusting bolt 161 is fixed to the base 14 by the adjusting nut 162. The length of the adjusting bolt 161 between the base 14 and the side plane 13 is adjusted by rotating the adjusting nut 162. When the distance between the base 14 and the side plane 13 changes, the front rotating shaft 4 and the rear rotating shaft 5 rotate around the axis, thereby changing the gap d between the right end of the front detection plate 1 and the right end of the rear detection plate 2 and the roller surface of the friction roller 3. In the embodiment of the present application, the gap d is 1-1.5 mm, and the proximity switch 15 is parallel to the adjusting bolt 161.

[0037] The anti-wire entanglement device of the present application can promptly detect abnormal wire entanglement on the friction roller, forcing the winding head to stop to clean the waste wire on the friction roller, thereby ensuring the safety of equipment operation and the safety of operators.

[0038] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. The scope of protection claimed in the present application is defined by the appended claims, the description and their equivalents.

Claims

1. A wire-wrapping prevention device for a friction roller, wherein the friction roller extends in a front-to-back direction and is rotatably mounted on a friction roller housing, wherein the friction roller housing comprises a front support and a rear support disposed opposite to each other, characterized in that: The anti-winding device is installed between the front support and the rear support and is located on the left side of the friction roller. The anti-winding device includes: The detection mechanism includes a rotating shaft parallel to the friction roller and a detection plate, wherein the rotating shaft is mounted between the front support and the rear support so as to be rotatable about its own axis. The left end of the detection plate is connected to the rotating shaft, and the right end is close to the upper left portion of the friction roller and has a gap between it and the roller surface of the friction roller. a torsion spring coaxially sleeved on the rotating shaft, the torsion spring comprising a long support arm pressed against the bottom of the friction roller housing and a short support arm pressed against the detection plate, the short support arm being located on a rotation path of the detection plate around the rotating shaft away from the friction roller; and The induction adjustment mechanism includes a base installed on the rotating shaft, a proximity switch installed on the base, and a distance adjustment component. The sensing surface of the proximity switch faces the friction roller box. The distance adjustment component abuts between the base and the friction roller box to adjust the size of the gap.

2. The anti-wire entanglement device according to claim 1, characterized in that: In the front-to-back direction, the detection plate has a first size, the friction roller has a second size, and the first size is equal to the second size.

3. The anti-wire entanglement device according to claim 2, characterized in that: The rotating shaft includes a front rotating shaft and a rear rotating shaft arranged coaxially, the front rotating shaft is located in front of the rear rotating shaft, and the detection plate includes a front detection plate installed on the front rotating shaft and a rear detection plate installed on the rear rotating shaft.

4. The anti-wire entanglement device according to claim 3, characterized in that: The detection mechanism also includes a front bearing assembly arranged on the front support, a rear bearing assembly arranged on the rear support, and an intermediate bearing assembly fixed on the friction roller housing. The front end of the front rotating shaft cooperates with the front bearing assembly, the rear end of the rear rotating shaft cooperates with the rear bearing assembly, and the rear end of the front rotating shaft and the front end of the rear rotating shaft are simultaneously supported on the intermediate bearing assembly.

5. The anti-wire entanglement device according to claim 4, characterized in that: The torsion spring is mounted on the front shaft and is arranged adjacent to the intermediate bearing assembly.

6. The anti-wire entanglement device according to claim 4, characterized in that: The front bearing assembly includes a first retaining ring, a first disc spring and a first bearing arranged in sequence from front to rear, and the first retaining ring, the first disc spring and the first bearing are coaxially sleeved on the front rotating shaft. The rear bearing assembly includes a second bearing, a second disc spring and a second retaining ring arranged in sequence from front to rear, and the second bearing, the second disc spring and the second retaining ring are coaxially sleeved on the rear rotating shaft.

7. The anti-wire entanglement device according to claim 3, characterized in that: The base is connected to the front rotating shaft and the rear rotating shaft at the same time.

8. The anti-wire entanglement device according to claim 1, characterized in that: The distance adjustment assembly includes an adjusting bolt and an adjusting nut. One end of the adjusting bolt passes through the base and abuts against the friction roller box, and the other end of the adjusting bolt is fixed to the base through the adjusting nut.

9. The anti-wire entanglement device according to claim 8, characterized in that: The proximity switch is parallel to the adjusting bolt.

10. The anti-wire entanglement device according to claim 1, characterized in that: The gap is 1-1.5 mm.

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