Guide wheel capable of preventing wire jumping

Abstract

The utility model discloses a guide wheel capable of preventing wire jumping, which relates to the field of fiber production and comprises two truncated cone-shaped guide wheels and a connecting component. The small-diameter end is the upper bottom surface of the guide wheel; the large-diameter end is the lower bottom surface of the guide wheel; the shafts of the two guide wheels are collinear; the upper bottom surfaces of the two guide wheels are oppositely arranged; the two guide wheels are fixedly arranged on the connecting assembly; the guide wheel comprises an annular baffle used for preventing silk threads from falling off. The baffle is arranged on the lower bottom surface of the round table of the guide wheel; the baffle is coaxial with the circle of the lower bottom surface of the guide wheel; when the lower bottom face of the guide wheel circular truncated cone is horizontal and the upper bottom face of the guide wheel circular truncated cone faces upwards, the baffle extends outwards and is bent upwards with the circle center of the circle of the lower bottom face of the guide wheel as the center. The baffles and the guide wheels are integrally formed. According to the guide wheel capable of preventing wire jumping, the problem that in the prior art, wires are prone to falling off at the guide wheel is solved, and the situation that the wires fall off from the guide wheel can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of fiber production, in particular to a guide wheel for preventing fiber skipping. Background Art

[0002] In the fiber production process, the guide wheel is a frequently used structure that can change the direction of the fiber. For example, the silk roll is a stage or product form in the fiber processing process. When it needs to be subsequently processed, it needs to be unwound, and the guide wheel will be used in the unwinding process.

[0003] In the prior art, there is a chemical fiber tension buffer device with adjustable tensioning force, such as that disclosed in Chinese patent application No. 202310936158.9, which has a guide wheel structure for allowing the fiber to stick to the guide wheel to change the elongation direction.

[0004] However, the mechanical properties of the wires wound on different wire reels are different. The mechanical properties of some wires in the wire reel state are very poor and are easy to break when in a taut state. Therefore, the wire unwound on this wire reel is not in a taut state through the guide wheel. Therefore, this wire cannot always be pressed against the innermost side 01 of the guide wheel. When the wire turns through the guide wheel, the wire may move along the inner side wall 02 of the guide wheel and detach from the guide wheel from the wheel rim 03 (such as Figure 1 As shown in the figure, the process of the silk thread detaching from the guide wheel is called wire jumping; after the silk thread falls off the guide wheel, normal silk thread turning cannot be achieved, affecting the production process. Utility Model Content

[0005] In view of the above technical problems, the guide wheel for preventing wire jump provided by the utility model can reduce the occurrence of the wire falling off the guide wheel.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model provides a guide wheel for preventing wire skipping, comprising two truncated cone-shaped guide wheels and a connecting assembly; the end with a smaller diameter is the upper bottom surface of the guide wheel; the end with a larger diameter is the lower bottom surface of the guide wheel; the axes of the two guide wheels are colinear; the upper bottom surfaces of the two guide wheels are arranged opposite to each other; the two guide wheels are fixedly arranged on the connecting assembly; the guide wheel comprises an annular baffle for preventing the wire from falling off; the baffle is arranged at the lower bottom surface of the cone of the guide wheel; the baffle is coaxial with the circle of the lower bottom surface of the guide wheel; when the lower bottom surface of the guide wheel cone is horizontal and the upper bottom surface is arranged upward, the baffle extends outward and bends upward along the center of the circle of the lower bottom surface of the guide wheel as the center; the baffle is integrally formed with the guide wheel.

[0008] The guide wheel for preventing wire skipping provided by the utility model preferably also includes a limit block for guiding the wire; the limit block is fixedly arranged on the side of the truncated cone of the guide wheel; the limit block protrudes outward with the axis of the guide wheel as the center; the side of the limit block used to contact the wire is smooth.

[0009] The utility model provides a guide wheel for preventing wire skipping, preferably, the connecting assembly includes a bearing; the bearing includes an inner ring and an outer ring that can rotate with each other; the upper bottom surface of the guide wheel is provided with a hole perpendicular to the upper bottom surface and passing through the guide wheel; the diameter of the hole is just equal to the outer diameter of the outer ring; the inner ring of the bearing passes through the holes of the two guide wheels at the same time; the inner ring is rotatably fixed in the hole; the holes of the two guide wheels are respectively fixedly connected to the outer rings of the bearings.

[0010] The guide wheel for preventing wire skipping provided by the utility model preferably comprises: the connecting assembly further comprising a circular cylindrical rubber ring; a spacing is left between the two guide wheels; the rubber ring is fixedly provided on the outer ring of the bearing at the spacing between the two guide wheels; the rubber ring is tightly wrapped around the outer side of the outer ring of the bearing; the two circular cylindrical bottom sealing plates of the rubber ring are tightly attached to the upper bottom surfaces of the two guide wheels.

[0011] The above technical solution has the following advantages or beneficial effects:

[0012] The utility model discloses a guide wheel for preventing wire skipping, which relates to the field of fiber production, and comprises two truncated cone-shaped guide wheels and a connecting assembly; the end with a smaller diameter is the upper bottom surface of the guide wheel; the end with a larger diameter is the lower bottom surface of the guide wheel; the axes of the two guide wheels are colinear; the upper bottom surfaces of the two guide wheels are arranged oppositely; the two guide wheels are fixedly arranged on the connecting assembly; the guide wheel comprises an annular baffle for preventing the wire from falling off; the baffle is arranged at the lower bottom surface of the truncated cone of the guide wheel; the baffle is coaxial with the circle of the lower bottom surface of the guide wheel; when the lower bottom surface of the truncated cone of the guide wheel is horizontal and the upper bottom surface is arranged upward, the baffle is centered along the center of the circle of the lower bottom surface of the guide wheel, extends outward and bends upward; the baffle is integrally formed with the guide wheel. The guide wheel for preventing wire skipping provided by the utility model solves the problem that the wire is easy to fall off at the guide wheel in the prior art, and can reduce the occurrence of the wire falling off from the guide wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, but the emphasis is on illustrating the subject matter of the present invention.

[0014] Figure 1 It is the overall structural diagram of the guide wheel mentioned in the background technology of the utility model.

[0015] Figure 2 It is an overall structural diagram of a guide wheel for preventing wire skipping provided in Example 1 of the utility model.

[0016] Figure 3 It is an exploded structural diagram of a guide wheel for preventing wire skipping provided in Example 1 of the utility model. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should be noted that the terms used in the present invention are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

[0018] The technical solutions in the embodiments of the present invention are described below in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the protection scope of the present invention.

[0019] Embodiment 1:

[0020] In order to solve the problem that the wire is easy to fall off the guide wheel during the process of the wire passing through the guide wheel, the guide wheel for preventing wire jumping provided in Example 1 of the utility model is as follows: Figures 2 to 3 As shown, it includes two truncated cone-shaped guide wheels 1 and a connecting component 2; the end with a smaller diameter is the upper bottom surface of the guide wheel 1; the end with a larger diameter is the lower bottom surface of the guide wheel 1; the axes of the two guide wheels 1 are collinear; the upper bottom surfaces of the two guide wheels 1 are arranged opposite to each other; the two guide wheels 1 are fixedly arranged on the connecting component 2; the guide wheel 1 includes a circular ring-shaped baffle 3 for preventing the wire from falling off; the baffle 3 is arranged at the lower bottom surface of the cone of the guide wheel 1; the baffle 3 is coaxial with the circle of the lower bottom surface of the guide wheel 1; when the lower bottom surface of the cone of the guide wheel 1 is horizontal and the upper bottom surface is arranged upward, the baffle 3 extends outward and bends upward along the center of the circle of the lower bottom surface of the guide wheel 1; the baffle 3 is integrally formed with the guide wheel 1.

[0021] When the guide wheel for preventing wire skipping provided by Example 1 of the utility model is working, the guide wheel 1 needs to be rotatably fixed on an external device, and the moving wire will pass through the inward depression between the two guide wheels 1 (the bottom surfaces of the two guide wheels 1 on the truncated table are opposite, and the two guide wheels). During the movement of the wire along its extension direction, the wire is normally in contact with the connecting component 2. When the wire is loose, the wire may follow the side of the guide wheel 1, constantly changing the contact position with the guide wheel 1, and finally detaching from the center of the two guide wheels 1 along the guide wheel 1; in this embodiment, since a baffle 3 is provided on the lower bottom surface of the guide wheel 1, the baffle 3 can prevent the wire from falling off the guide wheel 1. On the side of the cone, in the process of changing the contact position with the guide wheel 1 along the cone side of the guide wheel 1, when the contact position between the wire and the guide wheel 1 moves to the lower bottom surface of the guide wheel 1, the wire touches the baffle 3 and cannot break away from the contact with the guide wheel 1. When the wire continues to loosen, the wire will be blocked by the bent part of the baffle 3 and thus be restricted between the two guide wheels 1; thereby preventing the wire from falling off the guide wheel. Compared with the guide wheel without the baffle 3 in the prior art, the guide wheel provided in this embodiment can prevent the wire from constantly changing the contact position with the guide wheel 1 along the cone side of the guide wheel 1, and finally breaking away from the lower bottom surface of the cone of the guide wheel 1.

[0022] The guide wheel for preventing wire skipping provided in Example 1 of the utility model solves the problem in the prior art that the wire is easily dropped off at the guide wheel, and can reduce the occurrence of the wire dropping off from the guide wheel.

[0023] In order to further prevent the wire from jumping, the present embodiment also includes a limit block 4 for guiding the wire; the limit block 4 is fixedly arranged on the side of the cone of the guide wheel 1; the limit block 4 protrudes outward with the axis of the guide wheel 1 as the center; the side of the limit block 4 that contacts with the wire is smooth. When the wire is turned by the guide wheel, it is in close contact with the connecting component 2. When the wire tends to approach the guide wheel 1 on both sides of the guide wheel, the normal conical surface can easily change the center of rotation of the wire at the turning point, because the conical surface of the cone of the guide wheel 1 is flat and variable. When the wire contacts the conical surface of the guide wheel 1, the distance between the contact point of the wire and the guide wheel 1 and the rotating axis (rotation radius) is flat and variable, and the flat and variable rotation radius makes it easy for the wire to change the center of rotation of the turning point. In this embodiment, a limit block 4 is provided on the side of the guide wheel 1 facing the wire, and the limit block 4 has a certain curvature. During the rotation of the guide wheel 1, when the wire contacts the contact position of the limit block 4 with a curvature, the wire needs to Only by changing the rotation radius to a larger value (than the conventional conical surface) can the rotation direction be changed by contacting the guide wheel 1. However, the need to change the rotation radius to a larger value (compared to the guide wheel of the conventional conical surface in the prior art) will make it difficult for the wire to change the rotation center, so that the wire will continue to change the moving direction by contacting the connecting component 2, and the wire will not easily fall off the guide wheel; since the side of the limit block 4 that is used to contact the wire is smooth, when the wire contacts the limit block 4, the wire will easily slide relative to the guide wheel 1, and the wire does not have the friction force to continue to contact the limit block 4. The wire is not easy to gradually change the contact position with the guide wheel by contacting the limit block 4, so that the wire is not easy to change the rotation radius along the guide wheel and finally fall off from the lower bottom surface of the guide wheel 1 of the guide wheel.

[0024] In order to reduce the influence of the guide wheel 1 on the movement of the silk thread, in this embodiment, the connecting component 2 includes a bearing 21; the bearing 21 includes an inner ring 211 and an outer ring 212 that can rotate with each other; the upper bottom surface of the guide wheel 1 is provided with a hole perpendicular to the upper bottom surface and passing through the guide wheel 1; the diameter of the hole is exactly equal to the outer diameter of the outer ring 212; the inner ring 211 of the bearing 21 passes through the holes of the two guide wheels 1 at the same time; the inner ring 211 is rotatably fixed in the hole; the holes of the two guide wheels 1 are respectively fixedly connected to the outer ring 212 of the bearing. When the silk thread passes between the two guide wheels 1, the silk thread will be restricted by the guide wheel 1 to rotate at the connecting component 2. If only the connecting component 2 in contact with the silk thread is ensured to rotate, and the silk thread changes direction after passing through the guide wheel, the rotation of the connecting component 2 can assist the movement of the silk thread. Then, when the silk thread contacts the guide wheel 1 on the side of the guide wheel for preventing the silk thread from detaching from the connecting component 2 from the side, relative friction will be generated with the guide wheel 1. The relative friction may cause the force properties of the silk thread to change, affecting the quality of the silk thread. In this embodiment, the guide wheels 1 are fixed on the outer ring 212 of the connecting component 2, and the inner ring 211 is fixed on an axis of an external device. In this way, the guide wheel 1 will rotate with the contact point with the silk thread (outer ring 212), and the outer ring 212 and the guide wheel 1 connected to the outer ring rotate synchronously with the inner ring 211, so that the silk thread is in contact with the outer ring 212 or the guide wheel 1 through static friction during the movement, thereby reducing the influence of the relative friction between the guide wheel 1 and the silk thread on the wear of the silk thread.

[0025] In order to prevent the relative friction between the wire and the outer ring 212 when the wire moves at high speed at the outer ring 212 of the connecting component 2, thereby causing the wire to be worn, in this embodiment, the connecting component 2 also includes a circular cylindrical rubber ring 22; a gap is left between the two guide wheels 1; a rubber ring 22 is fixedly arranged at the outer ring 212 of the bearing 21 at the gap between the two guide wheels 1; the rubber ring 22 is tightly wrapped around the outer side of the outer ring 212 of the bearing 21; the two bottom surfaces of the circular cylindrical rubber ring 22 are respectively tightly attached to the upper bottom surfaces of the two guide wheels 1. The rubber ring 22 can increase the static friction between the wire and the outer ring 212, thereby reducing the relative friction between the wire and the outer ring 212, thereby reducing the wear of the wire by the guide wheel due to relative friction.

[0026] In summary, the utility model discloses a guide wheel for preventing wire skipping, which relates to the field of fiber production, and includes two truncated cone-shaped guide wheels and a connecting assembly; the end with a smaller diameter is the upper bottom surface of the guide wheel; the end with a larger diameter is the lower bottom surface of the guide wheel; the axes of the two guide wheels are colinear; the upper bottom surfaces of the two guide wheels are arranged oppositely; the two guide wheels are fixedly arranged on the connecting assembly; the guide wheel includes an annular baffle for preventing the wire from falling off; the baffle is arranged at the lower bottom surface of the truncated cone of the guide wheel; the baffle is coaxial with the circle of the lower bottom surface of the guide wheel; when the lower bottom surface of the truncated cone of the guide wheel is horizontal and the upper bottom surface is arranged upward, the baffle extends outward and bends upward along the center of the circle of the lower bottom surface of the guide wheel as the center; the baffle is integrally formed with the guide wheel. The guide wheel for preventing wire skipping provided by the utility model solves the problem that the wire is easy to fall off at the guide wheel in the prior art, and can reduce the occurrence of the wire falling off from the guide wheel.

[0027] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A guide wheel for preventing wire skipping, characterized in that: It includes two truncated cone-shaped guide wheels and a connecting assembly; The end with a smaller diameter is the upper bottom surface of the guide wheel; the end with a larger diameter is the lower bottom surface of the guide wheel; The axes of the two guide wheels are collinear; the upper bottom surfaces of the two guide wheels are arranged opposite to each other; the two guide wheels are fixedly arranged on the connecting assembly; The guide wheel comprises a circular baffle for preventing the wire from falling off; the baffle is arranged at the bottom surface of the truncated cone of the guide wheel; the baffle is coaxial with the circle of the bottom surface of the guide wheel; When the lower bottom surface of the guide wheel cone is horizontal and the upper bottom surface is arranged upward, the baffle extends outward and bends upward along the center of the circle of the lower bottom surface of the guide wheel; The baffle plate and the guide wheel are integrally formed.

2. The guide wheel for preventing wire skipping according to claim 1, characterized in that: It also includes a limit block for guiding the wire; the limit block is fixedly arranged on the side of the truncated cone of the guide wheel; the limit block protrudes outward with the axis of the guide wheel as the center; the side of the limit block used to contact the wire is smooth.

3. The guide wheel for preventing wire skipping according to claim 1, characterized in that: The connecting assembly includes a bearing; the bearing includes an inner ring and an outer ring that can rotate relative to each other; The upper bottom surface of the guide wheel is provided with a hole which is perpendicular to the upper bottom surface and passes through the guide wheel; the diameter of the hole is just equal to the outer diameter of the outer ring; the inner ring of the bearing passes through the holes of the two guide wheels at the same time; the inner ring can be rotatably fixed in the holes; the holes of the two guide wheels are respectively fixedly connected to the outer ring of the bearing.

4. The guide wheel for preventing wire skipping according to claim 3, characterized in that: The connecting assembly also includes a circular cylindrical rubber ring; a gap is left between the two guide wheels; the rubber ring is fixedly arranged on the outer ring of the bearing at the gap between the two guide wheels; the rubber ring is tightly wrapped around the outer side of the outer ring of the bearing; the two bottom surfaces of the circular cylindrical rubber ring are respectively tightly attached to the upper bottom surfaces of the two guide wheels.

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