Yarn gripper cleaning device

Abstract

The invention belongs to the technical field of textile equipment, and discloses a yarn gripper cleaning device which comprises a first cleaning assembly, the first cleaning assembly comprises a fixed sleeve, and the fixed sleeve is connected with a high-pressure air source through a pipeline; one end of the movable sleeve is communicated with the fixed sleeve, and the outer diameter of the movable sleeve is smaller than the inner diameter of the yarn gripper cylinder core so that the movable sleeve can be inserted into the yarn gripper cylinder core; the spraying hole penetrates through the side wall of the movable sleeve, is communicated with an inner cavity of the movable sleeve and is used for guiding gas provided by a high-pressure gas source into the yarn gripper cylinder core; according to the scheme, power is provided through the high-pressure air source, the movable sleeve can be inserted into the yarn gripper cylinder core due to the fact that the outer diameter is smaller than the inner diameter of the yarn gripper cylinder core, the spraying holes penetrating through the side wall of the movable sleeve can guide high-pressure air into the cylinder core, and when high-pressure air flow is sprayed out through the spraying holes, impact air flow is formed to blow the inner wall of the yarn gripper cylinder core; impurities such as accumulated cotton dust and fiber chippings are blown out; the yarn gripper solves the problem of cleaning the interior of the yarn gripper.

Description

Technical Field

[0001] The present invention belongs to the technical field of textile equipment, and specifically relates to a yarn gripper cleaning device. Background Art

[0002] The yarn gripper is a key component in spinning equipment used to clamp and control the movement of the yarn. Its function is to ensure spinning quality and efficiency by stabilizing yarn tension. For example, in equipment such as ring spinning machines and air-jet looms, the yarn gripper must precisely grip the yarn to ensure uniform tension during twisting, winding, and weaving, avoiding problems such as yarn breakage, loosening, and tension fluctuations.

[0003] During the spinning process, yarn friction easily accumulates impurities such as cotton dust and fiber debris on the gripper. Traditional cleaning methods (such as compressed air purging) can only remove surface impurities but cannot penetrate deep into the gripper. These accumulated impurities can become lodged in the gripper's gripping components, causing them to become stuck or jammed during doffing or bobbin changes, disrupting the production process, increasing friction and wear between components, and shortening their service life.

[0004] Referring to the document with the existing publication (announcement) number CN202047202U, a loom weft yarn clamp cleaning wind impeller device is disclosed, including an impeller and a plurality of blades. The impeller is directly mounted on the shaft head of the loom main shaft, and the plurality of blades have at least two different installation angles. The device blows away the flying flowers and velvet around the clamp by setting the blades, thereby achieving the purpose of cleaning. Furthermore, the document with the existing publication (announcement) number CN220887901U discloses a roller-type clamp for a large circular knitting machine, including a fixed plate and a cleaning component for removing impurities on the outer surface of the yarn, the impurity removal component including a support frame fixedly connected to one side of the bottom of the fixed plate, a guide roller connected to the lower part of the support frame, and a cleaning roller provided on the upper part of the support frame; the clamp removes impurities such as cotton wool on the outer surface of the yarn in advance by setting a cleaning roller to ensure the cleanliness of the yarn, thereby reducing cotton dust around the clamp.

[0005] Although the above-mentioned device cleans the yarn clamp and the yarn surface by means of blade blowing and cleaning roller respectively, it can reduce the cotton dust around the yarn clamp to a certain extent, but it does not mean that there is no cotton dust around the yarn clamp, and it is impossible to clean the inside of the yarn clamp. The cotton dust impurities accumulated inside the yarn clamp will cause problems such as jamming and wear of the yarn clamp. Summary of the Invention

[0006] The purpose of this solution is to provide a yarn gripper cleaning device to solve the problem of cleaning the inside of the yarn gripper.

[0007] In order to achieve the above object, the present invention provides a yarn gripper cleaning device, comprising a first cleaning component, wherein the first cleaning component comprises:

[0008] A fixed sleeve, wherein the fixed sleeve is connected to a high-pressure gas source through a pipeline;

[0009] A movable sleeve, one end of which is connected to the fixed sleeve, and an outer diameter of the movable sleeve is smaller than an inner diameter of the yarn gripper core so as to be inserted into the yarn gripper core;

[0010] The spray hole penetrates the side wall of the movable sleeve and is communicated with the inner cavity of the movable sleeve. The spray hole is used to guide the gas provided by the high-pressure gas source to the interior of the yarn clamp core.

[0011] The principle and effect of this solution are as follows: a fixed sleeve is connected to a high-pressure air source to provide power, and a movable sleeve can be inserted into the inner diameter of the yarn gripper core because its outer diameter is smaller than the inner diameter of the yarn gripper core. The spray holes penetrating the side wall of the movable sleeve can guide the high-pressure gas into the inner part of the core. When the high-pressure airflow is ejected through the spray holes, it forms an impact airflow that sweeps the inner wall of the yarn gripper core and blows out accumulated impurities such as cotton dust and fiber debris, thereby avoiding component jamming and blocking caused by impurity accumulation, while reducing component wear and extending the service life of the yarn gripper.

[0012] Furthermore, the outer diameter of the fixed sleeve is larger than the inner diameter of the yarn gripper core; the number of the spray holes is multiple and they are arranged at intervals along the circumferential direction of the center of the movable sleeve.

[0013] The principle and effect of this solution lies in the following: the outer diameter of the fixed sleeve is larger than the inner diameter of the yarn gripper core, allowing it to contact one end of the core, preventing high-pressure gas from being ejected from that end. Consequently, impurities carried by the gas can only be discharged through the other end of the core. Multiple circumferentially spaced nozzles allow high-pressure airflow to impact the inner wall of the core from different positions, forming a surrounding airflow coverage, sweeping cotton dust and impurities from the core interior to the other end for discharge.

[0014] Furthermore, the outer wall of the movable sleeve is slidably connected to the inner wall of the fixed sleeve, and the height of the movable sleeve is not less than the height of the yarn gripper core.

[0015] The principle and effect of this solution lies in gradually increasing or decreasing the flow rate of the high-pressure gas source, which increases or decreases the pressure within the movable sleeve. This flow pushes the nozzle holes to eject gas, generating axial thrust that drives the movable sleeve along the inner wall of the fixed sleeve. Because the movable sleeve highly covers the cylinder core, its movement drives the nozzle holes to reciprocate axially along the cylinder core, providing better coverage and cleaning of the cylinder core.

[0016] Furthermore, the axis of the spray hole is inclined at an angle α relative to the axis of the movable sleeve, and the angle α is 15°-20°, so that the airflow sprayed from the spray hole is inclined toward the inner wall of the yarn gripper core.

[0017] The principle and effect of this solution is that when the air ejected from the nozzle is horizontal, the airflow direction is perpendicular to the inner wall of the yarn clamp core, which tends to blow impurities into the inner wall of the core, creating a "cleaning dead angle" instead of blowing them out. Therefore, the nozzle is set to be inclined 15°-20° along the axis, so that the airflow acts on the inner wall of the core at an oblique angle, reducing the cleaning dead angle and achieving better cleaning effect.

[0018] Furthermore, it also includes a second cleaning component, which includes a drive shaft and fan blades, one end of the drive shaft is connected to a support rod, the free end of the support rod is rotatably connected to the inner wall of the fixed sleeve, and the free end of the drive shaft passes through the top wall of the movable sleeve; the fan blades are coaxially connected to the drive shaft and are arranged in the inner cavity of the movable sleeve, the blades of the fan blades are evenly distributed along the circumference of the drive shaft and are spirally twisted, and the spiral angle of the blades is adapted to the angle α, and is used to spray high-pressure airflow from the nozzle at an angle α.

[0019] The principle and effect of this scheme are: when the high-pressure airflow enters the inner cavity of the movable sleeve, the blade spiral angle is adapted to the nozzle inclination angle α (15°-20°), and the airflow forms a pre-rotation angle consistent with the nozzle axis after being guided by the fan blade, so that the airflow is ejected from the nozzle at an inclination.

[0020] Furthermore, the rotating shaft of the fan blade is fixedly connected to the top wall of the movable sleeve; the outer wall of the driving shaft is provided with a guide groove, and the rotating shaft of the fan blade is slidably connected to the guide groove.

[0021] The principle and effect of this scheme are: when the high-pressure airflow drives the fan blades to rotate, since the rotating shaft and the movable sleeve are fixed, the fan blades drive the movable sleeve to rotate synchronously in the circumferential direction; at the same time, the guide groove causes the fan blade rotating shaft to move along the length direction of the drive shaft, thereby driving the movable sleeve to slide back and forth along the axial direction of the yarn clamp tube core, so that the spray hole makes a spiral sweep along the wall of the tube core while spraying out the inclined airflow, which has a better cleaning effect on the inside of the yarn clamp.

[0022] Furthermore, the drive shaft is a cavity structure, and an opening is provided at one end of the drive shaft located in the fixed sleeve, and the opening is connected to the cavity; an air hole is passed through the side wall of the drive shaft, and the air hole is connected to the cavity, and the axis of the air hole is parallel to the top surface of the yarn clamp tube core, so that the gas ejected from the air hole forms a horizontal airflow covering the top surface of the yarn clamp tube core.

[0023] The principle and effect of this solution are as follows: (1) This device is generally set on a machine tool, and there are multiple devices. In order to facilitate the installation of the yarn clamp on the cleaning device, the fixed sleeve is generally set vertically. When multiple cleaning devices are running at the same time, the cotton dust and fiber debris blown out will float in the air for a period of time. When the nozzle is spraying air to the yarn clamp for cleaning, since the nozzle is rotating circumferentially, the air flow rate in the middle position of the yarn clamp is generally small, so that the impurities floating in the air fall from the middle position into the yarn clamp. (2) In this solution, since one end of the drive shaft is provided with an opening and is connected to the cavity and the air hole, when the air flow drives the fan blade to rotate and drives the drive shaft to rotate, a part of the air flow will enter the cavity from the opening and finally be ejected from the air hole. Since the drive shaft is in circumferential rotation, it will drive the air hole to rotate synchronously, so that the gas ejected from the air hole will form an annular air curtain, thereby covering the top surface of the cylinder core to prevent the impurities floating above from entering the yarn clamp.

[0024] Furthermore, the diameter of the opening is smaller than the inner diameter of the movable sleeve, so that the intensity of the airflow ejected through the air hole is smaller than the intensity of the airflow ejected through the nozzle hole.

[0025] The principle and effect of this scheme are: the reduction of the opening diameter leads to a reduction in the amount of air entering the drive shaft cavity, so that the intensity of the air flow ejected from the air hole is lower than the main air flow of the nozzle. As a result, although the air curtain can form a barrier on the top surface of the yarn clamp tube core to prevent impurities floating in the air from falling, it will not close the top opening of the tube core due to excessive airflow, so that the main air flow of the nozzle can discharge the cleaned impurities from the top of the tube core.

[0026] Furthermore, the air hole is provided with a sealing ball for sealing the air hole, the sealing ball is connected to a spring, and the free end of the spring is fixedly connected to the air hole.

[0027] The principle and effect of this solution are as follows: the sealing ball and the spring act as a one-way valve. Only when there is gas in the drive shaft and the drive shaft is in a rotating state, the sealing ball is subjected to the thrust of the gas and the centrifugal force of the rotation, which will stretch the spring to open the air hole and produce an air injection gap.

[0028] Furthermore, the fixed sleeve is connected to a regulating valve through a pipeline, and the air inlet end of the regulating valve is connected to an air compressor.

[0029] The principle and effect of this solution are as follows: the flow rate of the high-pressure air source is adjusted by a regulating valve, thereby controlling the circumferential movement of the movable sleeve within the yarn gripper. When the regulating valve opening is increased, the air flow rate increases, the air pressure in the movable sleeve cavity increases, and the generated axial thrust drives the movable sleeve to slide upward along the inner wall of the fixed sleeve. Conversely, when the regulating valve opening is reduced, the flow rate decreases, the air pressure decreases, and the movable sleeve slides downward under the action of gravity or the reset mechanism, thereby causing the spray hole to clean reciprocally along the axial direction of the barrel core. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a front view of a yarn gripper cleaning device of the present invention;

[0031] Figure 2 This is a front view of the yarn gripper of the present invention arranged on the frame;

[0032] Figure 3 This is a schematic diagram of the internal structure of a yarn gripper cleaning device of the present invention;

[0033] Figure 4 Schematic diagram of the internal structure of the second cleaning component of the present invention;

[0034] Figure 5 Schematic diagram of the internal structure of the fan blades and drive shaft of the present invention;

[0035] Figure 6 Schematic diagram of the internal structure of the pore of the present invention; Figure 7 for Figure 6 A local enlarged schematic diagram of point A in the middle.

[0036] The names of the corresponding marks in the accompanying drawings are: first cleaning component 1, fixed sleeve 11, movable sleeve 12, spray hole 13, regulating valve 14, second cleaning component 2, drive shaft 21, guide groove 211, air hole 212, fan blade 22, support rod 23, sealing ball 24, spring 241, yarn clamp 3, and machine tool 4. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the concept and technical effects of the present invention in conjunction with the embodiments to fully understand the purpose, features and effects of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention:

[0038] Example:

[0039] See also Figure 1-Figure 3 This embodiment provides a yarn gripper cleaning device, comprising a first cleaning assembly 1 and a second cleaning assembly 2, suitable for cleaning the interior of a yarn gripper 3 in a textile machine. The device is vertically mounted on a machine tool 4, and multiple devices are provided to facilitate simultaneous cleaning of multiple yarn grippers 3. The yarn grippers 3 are existing devices, and the yarn gripper structure can be found in patent document CN116752255A.

[0040] See also Figure 1 and Figure 3The first cleaning component 1 includes a fixed sleeve 11, a movable sleeve 12 and a nozzle 13; a gas interface is provided at one end of the fixed sleeve 11, the interface is connected to an air compressor (not shown) through a pipeline, and a regulating valve 14 for adjusting the air flow is provided on the pipeline. The regulating valve 14 controls the air pressure in the inner cavity of the movable sleeve 12 by adjusting the air flow; the fixed sleeve 11 and the movable sleeve 12 are both cylindrical, and the outer diameter of the fixed sleeve 12 is larger than the inner diameter of the core of the yarn clamp 3, and it contacts one end of the core to form a sealing structure to prevent leakage of high-pressure gas. One end of the movable sleeve 12 is arranged in the fixed sleeve 12, one end of the movable sleeve 12 is connected to the fixed sleeve 11, and one end of the movable sleeve 12 is provided with a rubber ring. The movable sleeve 12 can move up and down and rotate circumferentially in the fixed sleeve 12. The outer diameter of the movable sleeve 12 is smaller than the inner diameter of the tube core and can be inserted into the inside of the tube core of the yarn clamp 3; a plurality of spray holes 13 are evenly distributed circumferentially on the top side wall of the fixed sleeve 12, and the axis of the spray hole 13 is inclined at 15°-20° relative to the axis of the movable sleeve 12, and the inner diameter is 0.5-2mm, so that the high-pressure airflow impacts the inner wall of the tube core at an oblique angle, avoiding the problem of traditional vertical airflow "pressing" impurities on the wall, thereby improving the impurity cleaning efficiency.

[0041] See also Figure 4 and Figure 5 The second cleaning component 2 includes a drive shaft 21 and a fan blade 22. One end of the drive shaft 21 is connected to a support rod 23. The free end of the support rod 23 is rotatably connected to the inner wall of the fixed sleeve 11. The inner wall of the fixed sleeve 11 is provided with an annular slide structure (not shown), so that the free end of the support rod 23 slides in the slide to achieve circumferential rotation; the free end of the drive shaft 21 passes through the top wall of the movable sleeve 12; the outer wall of the drive shaft 21 is provided with a guide groove 211, which is arranged along the length direction of the drive shaft 21, and the rotating shaft of the fan blade 22 is slidably connected to the guide groove 211, and the rotating shaft of the fan blade 22 is fixedly connected to the top wall of the movable sleeve 12 (as shown in the figure). Figure 4 As shown), the fan blades 22 can drive the drive shaft 21 and the movable sleeve 12 to rotate, and can also slide up and down along the length direction of the drive shaft 21. When the high-pressure airflow pushes the fan blades 22 to rotate, the guide grooves 211 cause the fan blades 22 to drive the movable sleeve 12 to rotate circumferentially and move axially, so that the spray hole 13 forms a spiral sweeping trajectory, thereby expanding the cleaning coverage area; the fan blades 22 are coaxially connected to the drive shaft 21 and are arranged in the inner cavity of the movable sleeve 12. The blades of the fan blades 22 are evenly distributed along the circumference of the drive shaft 21 and are twisted in a spiral shape. The spiral angle of the blades is adapted to the angle α, and is used to spray the high-pressure airflow from the spray hole 13 at an angle α.

[0042] See also Figure 6 and Figure 7The driving shaft 21 is a cavity structure, and one end of the driving shaft 21 located in the fixed sleeve 11 is provided with an opening, which is connected to the cavity; the side wall of the driving shaft 21 is penetrated by an air hole 212, and the air hole 212 is connected to the cavity, and the axis of the air hole 212 is parallel to the top surface of the yarn clamp 3 tube core, so that the gas ejected from the air hole 212 forms a horizontal air flow covering the top surface of the yarn clamp 3 tube core; the air hole 212 is provided with a sealing ball 24 for sealing the air hole 212, and the sealing ball 24 is connected to a spring 241, and the free end of the spring 241 is fixedly connected to the air hole 212, and the sealing ball 24 and the spring 241 act as a one-way valve. Only when there is gas in the driving shaft 21 and the driving shaft 21 is in a rotating state, the sealing ball 24 is subjected to the thrust of the gas and the centrifugal force of the rotation, and the spring 241 will be stretched to open the air hole 212, thereby generating an air jet gap (such as Figure 6 It should be noted that the diameter of the opening is smaller than the inner diameter of the movable sleeve 12, so that the intensity of the airflow ejected through the air hole 212 is smaller than the intensity of the airflow ejected through the nozzle hole 13. Therefore, although the air curtain can form a barrier on the top surface of the yarn clamp 3 cylinder core to prevent floating impurities from falling, it will not close the top opening of the cylinder core due to excessive airflow, so that the main airflow of the nozzle hole 13 can discharge the cleaned impurities from the top of the cylinder core.

[0043] During operation, the high-pressure airflow from the air compressor enters the fixed sleeve 11 through the regulating valve 14. Due to the sealing design between the fixed sleeve 11 and one end of the tube core, the airflow is ejected obliquely from the nozzle 13 of the movable sleeve 12, impacting the inner wall of the tube core to remove impurities; the regulating valve 14 adjusts the flow rate to drive the movable sleeve 12 to move back and forth, expanding the cleaning range. The fan blades 22 guide the airflow to form a pre-rotation angle, enhancing the cleaning ability of the airflow from the nozzle 13, and at the same time drive the movable sleeve 12 to rotate circumferentially, so that the nozzle 13 rotates synchronously to achieve 360° cleaning. At the same time, part of the airflow is ejected from the air hole 212 through the cavity of the drive shaft 21, forming an air curtain to prevent floating impurities from falling into the yarn clamp 3. After the device was put into use, the average daily damage to the yarn clamp 3 was reduced by 10%, which improved the cleaning efficiency of the yarn clamp 3 and the stability of equipment operation in large-scale textile production.

[0044] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A yarn gripper cleaning device, comprising a first cleaning component (1), characterized in that: The first cleaning component (1) comprises: A fixed sleeve (11), wherein the fixed sleeve (11) is connected to a high-pressure gas source via a pipeline; A movable sleeve (12), one end of which is connected to the fixed sleeve (11), and an outer diameter of the movable sleeve (12) is smaller than an inner diameter of the yarn clamp (3) core, so as to be inserted into the yarn clamp core; A spray hole (13) passes through the side wall of the movable sleeve (12) and is connected to the inner cavity of the movable sleeve (12). The spray hole (13) is used to guide the gas provided by the high-pressure gas source to the interior of the yarn clamp (3) tube core.

2. A yarn gripper cleaning device according to claim 1, characterized in that: The outer diameter of the fixed sleeve (11) is larger than the inner diameter of the core of the yarn clamp (3); the number of the spray holes (13) is multiple and they are arranged at intervals along the circumference of the center of the movable sleeve (12).

3. A yarn gripper cleaning device according to claim 1, characterized in that: The outer wall of the movable sleeve (12) is slidably connected to the inner wall of the fixed sleeve (11), and the height of the movable sleeve (12) is not less than the height of the core of the yarn gripper (3).

4. A yarn gripper cleaning device according to claim 2, characterized in that: The axis of the spray hole (13) is inclined at an angle α relative to the axis of the movable sleeve (12), and the angle α is 15°-20°, so that the airflow ejected from the spray hole (13) is inclined toward the inner wall of the yarn clamp (3) tube core.

5. A yarn gripper cleaning device according to claim 4, characterized in that: The invention also includes a second cleaning component (2), which includes a driving shaft (21) and a fan blade (22), one end of the driving shaft (21) is connected to a support rod (23), the free end of the support rod (23) is rotatably connected to the inner wall of the fixed sleeve (11), and the free end of the driving shaft (21) passes through the top wall of the movable sleeve (12); the fan blade (22) is coaxially connected to the driving shaft (21) and is arranged in the inner cavity of the movable sleeve (12); the blades of the fan blade (22) are evenly distributed along the circumference of the driving shaft (21) and are twisted in a spiral shape, and the spiral angle of the blade is adapted to the angle α, so as to eject the high-pressure airflow from the spray hole (13) at the angle α.

6. A yarn gripper cleaning device according to claim 5, characterized in that: The rotating shaft of the fan blade (22) is fixedly connected to the top wall of the movable sleeve (12); the outer wall of the driving shaft (21) is provided with a guide groove (211), and the rotating shaft of the fan blade (22) is slidably connected to the guide groove (211).

7. A yarn gripper cleaning device according to claim 5, characterized in that: The driving shaft (21) is a cavity structure, and an opening is provided at one end of the driving shaft (21) located in the fixed sleeve (11), and the opening is communicated with the cavity; an air hole (212) is passed through the side wall of the driving shaft (21), and the air hole (212) is communicated with the cavity, and the axis of the air hole (212) is parallel to the top surface of the core of the yarn clamp (3), so that the gas ejected from the air hole (212) forms a horizontal airflow covering the top surface of the core of the yarn clamp (3).

8. A yarn gripper cleaning device according to claim 7, characterized in that: The diameter of the opening is smaller than the inner diameter of the movable sleeve (12), so that the intensity of the air flow ejected through the air hole (212) is smaller than the intensity of the air flow ejected through the nozzle hole (13).

9. A yarn gripper cleaning device according to claim 7, characterized in that: The air hole (212) is provided with a sealing ball (24) for sealing the air hole (212). The sealing ball (24) is connected to a spring (241). The free end of the spring (241) is fixedly connected to the air hole (212).

10. The yarn gripper cleaning device according to claim 1, characterized in that: The fixed sleeve (11) is connected to a regulating valve (14) via a pipeline, and the air inlet end of the regulating valve (14) is connected to an air compressor.

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