A guide wheel assembly for textile machinery

Abstract

The invention discloses a guide wheel assembly for textile machinery, comprising a guide wheel, a guide wheel shaft, a mounting shaft, and a fan. The guide wheel has a hollow inner cavity, one side of which is closed and the other side is open. A sleeve with an axial center hole is fixed on the axis line of the inner cavity of the guide wheel. A blind hole communicating with the inner cavity of the sleeve is arranged on the outer wall of the closed side of the guide wheel. The fan is sleeved on the sleeve. A mounting hole is opened at one end of the mounting shaft toward the guide wheel. One end of the guide wheel shaft passes through the axial center hole of the sleeve and is inserted into the blind hole, and the other end is inserted into the mounting hole. The guide wheel assembly also includes a cover plate sleeved on the mounting shaft, an inlay arranged between the sleeve and the guide wheel shaft, the diameter of the cover plate is smaller than the inner diameter of the open side of the guide wheel, the cover plate is closely matched with the mounting shaft, the inlay is sleeved on the side of the guide wheel shaft close to the mounting shaft, and the inlay can rotate with the rotation of the guide wheel. The structure is simple and can effectively prevent short fiber cotton wool and floating dust from entering the rotating area of ​​the guide wheel.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, and in particular to a guide wheel assembly for textile machinery. Background Art

[0002] The guide wheel assembly is used in the guide device of textile machinery. The guide wheel plays the role of guiding the core yarn during the spinning process. Specifically, refer to Figure 1 and Figure 2 The traditional guide wheel assembly includes a bolt shaft, a bearing 13 riveted to one end of the bolt shaft, an end cover installed at the other end of the bearing and locked with a retaining ring 14, the other end of the bolt shaft is connected to the long nut of the fixed bracket, and the bearing is installed in the center hole of the guide wheel. During the production process, the end cover cannot effectively prevent the short fiber cotton and floating dust in the factory air from entering the guide wheel bearing. Since the short fiber cotton and floating dust entering the bearing are difficult to clean, the bearing is stuck and fails, causing the guide wheel to rotate inflexibly or even stop, affecting the yarn quality and reducing production efficiency.

[0003] Core-spun yarn is now used in the production of stretch textile fabrics. The core-spun yarn is made of cotton yarn wrapped around a core wire. Core-spun yarn is generally spun on a ring spinning machine, in which a wire guide device is usually used to fix the position of the core wire. The wire guide device is fixed on the frame of the ring spinning machine. The wire guide device includes a fixed bracket and a wire guide wheel component arranged on both sides of the fixed bracket. The fixed bracket is composed of a long nut and a bottom bracket. The wire guide wheel component includes a bolt shaft, a bearing riveted to one end of the bolt shaft, and a wire guide wheel with a blind hole. The other end of the bolt shaft is connected to the long nut of the fixed bracket, and the bearing is installed in the blind hole of the wire guide wheel. In the process of spinning core-spun yarn, there are a large number of short fiber flying catkins and floating dust in the air of the spinning factory. Although dust covers are installed on both sides of the bearings in the passive wire guide device, the existing bearing dust covers cannot completely and effectively prevent the short fiber flying catkins and floating dust from entering the bearings. As a result, the bearings in the passive wire guide device will not rotate flexibly, making the wire guide wheel unable to rotate. As time goes by, a large amount of short fiber flying catkins in the air accumulates in the V-groove of the wire guide wheel, making the core-spun yarn uneven and affecting the yarn quality. Chinese patent No. 2019211166850 discloses a guide wheel assembly for textile machinery, which utilizes a bushing in a blind hole with a single end closed on the guide wheel, a guide wheel shaft inserted into the bushing, and a cover plate provided on the guide wheel shaft, and utilizes the force exerted on the guide wheel shaft by an E-shaped opening spring to cover the opening of the blind hole and the bushing to form a relatively closed space, so that the relative rotation between the guide wheel and the guide wheel shaft is carried out in the relatively closed space, thereby preventing short-fiber cotton wool and floating dust from entering between the guide wheel and the guide wheel shaft, and effectively preventing short-fiber cotton wool and floating dust that cause the guide wheel to fail to rotate from entering the guide wheel rotation area, thereby ensuring that the guide wheel can operate flexibly for a long time.

[0004] The guide wheel assembly of this structure has the following problems: in actual use, it is impossible to ensure that the guide wheel and the guide wheel shaft are absolutely closed, and there will still be a certain gap. It is precisely because of the existence of this gap that short fibers and floating dust in the air will still enter the bearing through the gap. After a long period of time, the performance of the bearing is damaged, causing the guide wheel to fail to operate normally. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a guide wheel assembly for textile machinery, which can effectively prevent short fiber flying and floating dust from entering the inner cavity of the guide wheel and being entangled on the guide wheel shaft.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a wire guide wheel assembly for textile machinery, comprising a wire guide wheel, a wire guide wheel shaft, and a mounting shaft for mounting the wire guide wheel on a frame, the wire guide wheel having a hollow inner cavity, one side of the wire guide wheel is closed and the other side is open, a sleeve with an axial hole is fixedly provided on the axial line of the inner cavity of the wire guide wheel, a blind hole communicating with the inner cavity of the sleeve is provided on the outer side wall on the closed side of the wire guide wheel, the wire guide wheel assembly also includes a fan sleeved on the sleeve, the mounting shaft has a mounting hole opened toward one end of the wire guide wheel, one end of the wire guide wheel shaft The guide wheel assembly passes through the axial hole of the sleeve along its own axial centerline direction and is inserted into the blind hole, and the other end is inserted into the mounting hole. The guide wheel assembly also includes a cover plate sleeved on the mounting shaft and an inlay arranged between the sleeve and the guide wheel shaft. The diameter of the cover plate is smaller than the inner diameter of the open side of the guide wheel, and the cover plate is tightly fitted with the mounting shaft. The inlay is sleeved on the side of the guide wheel shaft close to the mounting shaft. The inner side of the inlay is clearance-fitted with the guide wheel shaft, and the outer side is tightly fitted with the inner side of the sleeve. The inlay can rotate with the rotation of the guide wheel.

[0007] Preferably, an open side of the guide wheel is provided with an inwardly recessed step, and the outer edge of the cover plate is mounted on the step of the guide wheel, and the depth of the step is 1-2 mm.

[0008] As a specific implementation manner, the cover plate is in an arc shape, and the outer edge of the cover plate is 0.5-1 mm away from the outer edge of the step.

[0009] Preferably, the roots of the blades on the fan are inclined along the axial direction of the guide wheel from the closed end to the open end, and the inclination angle is 30°-45°.

[0010] Preferably, a boss is fixedly provided on the mounting shaft, and the center hole on the cover plate matches the boss in shape.

[0011] As a specific implementation manner, the boss is a regular hexagon.

[0012] As a specific implementation, the guide wire wheel and the cover plate are both made of aviation aluminum 7075 that has been treated for wear resistance.

[0013] Preferably, a retaining spring for mounting the guide wire wheel shaft is fixed in the blind hole, and one end of the guide wire wheel shaft is retained in the blind hole through the retaining spring.

[0014] As a specific implementation manner, the blind hole is in a truncated cone shape, and the diameter of the blind hole gradually decreases toward the side away from the guide wheel.

[0015] Due to the application of the above technical scheme, the present invention has the following advantages compared with the prior art: the thread guide wheel assembly for textile machinery of the present invention, by arranging a fan on the sleeve of the thread guide wheel and setting a gap between the cover plate and the opening of the thread guide wheel, so that when the thread guide wheel rotates, the fan is driven to rotate, so that an outward airflow is generated in the inner cavity of the thread guide wheel, thereby effectively preventing short fiber cotton and floating dust from entering the inner cavity of the thread guide wheel through the gap between the cover plate and the opening of the thread guide wheel and winding around the thread guide wheel shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An exploded view of the thread guide wheel assembly for textile machinery in the present invention;

[0017] Figure 2 It is a schematic diagram of the overall structure of the thread guide wheel assembly for textile machinery in the present invention;

[0018] Among them: 1. wire guide wheel; 112, wire guide wheel shaft; 3. mounting shaft; 31, boss 31; 4. sleeve; 41, axial hole; 5. fan; 6. inlay; 7. cover plate; 8. blind hole. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] A thread guide wheel assembly for textile machinery, see Figure 1As shown, it includes a wire guide wheel 1, a wire guide wheel shaft 2, and a mounting shaft 3 for mounting the wire guide wheel 1 on a frame. The wire guide wheel 1 has a hollow inner cavity, one side of the wire guide wheel 1 is closed and the other side is open, a sleeve 4 with an axial hole 41 is fixedly arranged on the axis of the inner cavity of the wire guide wheel 1, and a blind hole 8 communicating with the inner cavity of the sleeve 4 is arranged on the outer wall of the closed side of the wire guide wheel 1. The wire guide wheel 1 assembly also includes a fan 5 sleeved on the sleeve 4, and the mounting shaft 3 is provided with a mounting hole toward one end of the wire guide wheel 1, one end of the wire guide wheel shaft 2 passes through the axial hole 41 of the sleeve 4 along its own axis and is inserted into the blind hole 8, and the other end is inserted into the blind hole 8. In the mounting hole, the guide wheel 1 assembly also includes a cover plate 7 sleeved on the mounting shaft 3, and an inlay 6 arranged between the sleeve 4 and the guide wheel shaft 2. The diameter of the cover plate 7 is smaller than the inner diameter of the open side of the guide wheel 1, and the cover plate 7 is tightly fitted with the mounting shaft 3. The inlay 6 is sleeved on the side of the guide wheel shaft 2 close to the mounting shaft 3. The inner side of the inlay 6 has a clearance fit with the guide wheel shaft 2, and the outer side is tightly fitted with the inner side of the sleeve 4. The inlay 6 can rotate with the rotation of the guide wheel 1, and the fan 5 can also rotate with the rotation of the guide wheel 1.

[0021] In this example, an inwardly recessed step 11 is provided on the open side of the guide wheel 1, and the outer edge of the cover plate 7 is installed on the step 11 of the guide wheel 1, and the depth of the step 11 is 1-2 mm.

[0022] Specifically, the cover plate 7 is arc-shaped, and the outer edge of the cover plate 7 is 0.5-1 mm away from the outer edge of the step 11. The root of the fan blade on the fan 5 is inclined from the closed end to the open side along the axial direction of the guide wheel 1, and the inclination angle is 30°-45°.

[0023] By arranging the fan 5 and setting a gap between the outer edge of the cover plate 7 and the opening of the guide wheel 1, when the guide wheel 1 rotates, the fan 5 rotates with the guide wheel 1, and during the rotation, the air flow in the inner cavity of the guide wheel 1 is driven to flow, thereby generating a force to discharge outward, thereby blocking short-fiber cotton wool and floating dust outside the gap between the cover plate 7 and the opening, and effectively preventing them from entering the inner cavity of the guide wheel 1 and then being entangled on the guide wheel shaft 2. Compared with the prior art, it plays a real role in preventing flying cotton wool.

[0024] In this example, a boss 31 is fixedly disposed on the mounting shaft 3. Figure 2 As shown, the center hole on the cover plate 7 matches the boss 31 in shape. Specifically, the boss 31 is a regular hexagon. Through this arrangement, the cover plate 7 can be effectively connected to the mounting shaft 3, and short fiber cotton and floating dust will not enter the inner cavity of the guide wheel 1 from between the cover plate 7 and the mounting shaft 3.

[0025] In this example, the guide wheel 1 and the cover plate 7 are made of wear-resistant aviation aluminum 7075. The guide wheel 1 and the cover plate 7 made of this material are not only light in weight, but also easy to process, good in wear resistance, and long in service life. At the same time, the inlay 6 and the fan 5 here can be made of light plastic parts.

[0026] In this example, a retaining spring (not shown in the figure) for installing the wire guide wheel shaft 2 is fixed in the blind hole 8, and one end of the wire guide wheel shaft 2 is clamped in the blind hole 8 through the retaining spring. Specifically, the blind hole 8 is truncated cone-shaped, and the diameter of the blind hole 8 gradually decreases toward the side away from the wire guide wheel 1. The inner diameter of the sleeve 4 is larger than the diameter of the wire guide wheel shaft 2. This arrangement can effectively fix the wire guide wheel shaft 2 in the wire guide wheel 1, and can prevent friction between the sleeve 4 and the wire guide wheel shaft 2, so that the resistance to the rotation of the wire guide wheel 1 is greatly reduced, and the rotation is smoother.

[0027] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A guide wheel assembly for a textile machine, comprising a guide wheel, a guide wheel shaft, and a mounting shaft for mounting the guide wheel on a frame, characterized in that: The wire guide wheel has a hollow inner cavity, one side of the wire guide wheel is closed and the other side is open, a sleeve with an axial hole is fixed on the axial line of the inner cavity of the wire guide wheel, and a blind hole communicating with the inner cavity of the sleeve is arranged on the outer wall of the closed side of the wire guide wheel, the wire guide wheel assembly also includes a fan sleeved on the sleeve, the mounting shaft has a mounting hole opened toward one end of the wire guide wheel, one end of the wire guide wheel shaft passes through the axial hole of the sleeve along its own axial line direction and is inserted into the blind hole, and the other end is inserted into the mounting hole, the wire guide wheel assembly also includes a cover plate sleeved on the mounting shaft, and a cover plate arranged between the sleeve and the wire guide wheel shaft The inlay has a diameter smaller than the inner diameter of the open side of the guide wheel, the cover plate is tightly fitted with the mounting shaft, the inlay is sleeved on the side of the guide wheel shaft close to the mounting shaft, the inner side of the inlay is loosely fitted with the guide wheel shaft, and the outer side is tightly fitted with the inner side of the sleeve, the inlay can rotate with the rotation of the guide wheel, the open side of the guide wheel is provided with an inwardly recessed step, the outer edge of the cover plate is installed at the step of the guide wheel, the depth of the step is 1-2mm, a boss is fixed on the mounting shaft, and the center hole on the cover plate is matched with the boss in shape.

2. The thread guide wheel assembly for textile machinery according to claim 1, characterized in that: The cover plate is in an arc shape, and the outer edge of the cover plate is 0.5-1 mm away from the outer edge of the step.

3. The thread guide wheel assembly for textile machinery according to claim 1, characterized in that: The roots of the fan blades on the fan are inclined from the closed end to the open side along the axial direction of the guide wire wheel, and the inclination angle is 30°-45°.

4. The thread guide wheel assembly for textile machinery according to claim 1, characterized in that: The boss is a regular hexagon.

5. The thread guide wheel assembly for textile machinery according to claim 1, characterized in that: The guide wire wheel and cover plate are both made of aviation aluminum 7075 that has been treated for wear resistance.

6. The thread guide wheel assembly for textile machinery according to claim 1, characterized in that: A retaining spring for mounting the guide wire wheel shaft is fixedly arranged in the blind hole, and one end of the guide wire wheel shaft is retained in the blind hole through the retaining spring.

7. The thread guide wheel assembly for textile machinery according to claim 6, characterized in that: The blind hole is in a truncated cone shape, and the diameter of the blind hole gradually decreases toward the side away from the guide wire wheel.

Images