Needle cylinder structure for self-cleaning double-sided circular knitting machine

Abstract

The invention relates to the technical field of circular knitting machine needle cylinder machines, in particular to a self-cleaning type needle cylinder structure for a double-sided circular knitting machine, which comprises a machine body and a needle groove, the machine body is further provided with a lifting ring, a triangular protruding block and an electric pushing block. The lifting ring is rotatably arranged at the lower part of the knitting needle along the axis of the machine body; the number of the triangular protruding blocks is the same as that of the knitting needles, the triangular protruding blocks are evenly and fixedly arranged on the lifting ring around the axis of the lifting ring, and the upper end faces of the triangular protruding blocks and the upper end face of the lifting ring jointly form a driving end face used for driving the knitting needles to ascend and descend. The first electric push rod is vertically arranged below the lifting ring, and the first electric push rod is used for driving the lifting ring to move in the vertical direction; a taking-out unit for taking out the knitting needle in the horizontal direction is arranged on one side of the machine body. According to the knitting needle taking-out device, it is guaranteed that the knitting needle is not prone to bending in the taking-out process, and it is also guaranteed that cloth in production can be discharged from the lower portion of the machine body.

Description

Technical Field

[0001] The present invention relates to the technical field of circular knitting machine needle cylinder machines, and in particular to a self-cleaning needle cylinder structure for a double-sided circular knitting machine. Background Art

[0002] The outer surface of the existing double-sided circular knitting machine needle cylinder mechanism is constructed with multiple needle grooves for placing knitting needles. Lubricating oil is needed to avoid excessive friction when the knitting needles slide in the needle grooves. However, the lubricating oil is easily contaminated with lint on the yarn and dust in the air. The accumulation of dust will cause the knitting needles to be stuck by debris, affecting the operation of the equipment. The needle grooves need to be cleaned frequently. The existing cleaning method is generally to manually pick out the knitting needles in the needle grooves one by one, and then clean the needle grooves. The operation not only consumes a lot of manpower, but also takes too long, seriously affecting the production efficiency of the fabric.

[0003] Chinese Patent Publication No. CN222540997U discloses a needle cylinder structure for a double-sided circular knitting machine, comprising a ring platform, a needle cylinder, and a needle slot. The ring platform is provided with a support column, which is equipped with a displacement structure comprising a cylinder, a telescopic column, a displacement column, a ring sleeve, a connecting plate, and a top plate. The ring platform is provided with a ring slot, with multiple ring slots corresponding one-to-one to the positions of the needle slots. The ring platform is fixedly provided with a support column, which is surrounded by a ring sleeve, with a telescopic column connected to the top of the ring sleeve. The upper end of the telescopic column is connected to the cylinder. The ring sleeve is provided with multiple connecting plates extending outward from the circumference of the ring sleeve, with one end of a connector rotating vertically on the connecting plate. The other end of the connector is connected to a top plate, which has a protrusion at its lower end. The width of the top plate is the same as the width of the needle slot. Multiple connecting plates are provided, each corresponding one-to-one to the positions of the needle slots. The position of the top plate corresponds one-to-one to the position of the needle slots. The lower end of the ring sleeve is fixedly connected to a displacement column, which is located within the support column.

[0004] The above scheme enables the knitting needles to be ejected automatically when maintenance is required. However, when the double-sided circular knitting machine is in operation, the textile thread is transported from the top of the double-sided circular knitting machine into the double-sided circular knitting machine. After weaving, the woven fabric needs to be discharged from the bottom of the double-sided circular knitting machine. The existing mechanism for lifting the knitting needles will hinder the discharge of the fabric. After the knitting needles are ejected, the staff still needs to remove the knitting needles before cleaning the needle grooves. After cleaning, the knitting needles need to be installed into the needle grooves one by one, and the workload is still large. Summary of the Invention

[0005] In response to the above problems, a self-cleaning needle cylinder structure for a double-sided circular knitting machine is provided, in which a lifting ring that rotates along the axis of the machine casing is arranged below the knitting needle, and a triangular protrusion is arranged on the lifting ring. At the same time, a first electric push rod that can change the height of the lifting ring is arranged below the lifting ring, so that when the double-sided circular knitting machine is performing normal textile operations, the output end of the first electric push rod is in a retracted state, and the lifting ring intermittently lifts the knitting needle through the triangular protrusion during rotation, but the knitting needle is still limited by the limit plate at this time. After the machine body is placed and before self-cleaning is performed, the first electric push rod lifts the lifting ring, so that the triangular protrusion further lifts the knitting needle, thereby freeing the knitting needle from the limit of the limit plate, and then the knitting needle is clamped by the removal unit and taken out in the horizontal direction, ensuring that the knitting needle is not easily bent during the removal process.

[0006] In order to solve the problems of the prior art, the present invention provides a self-cleaning double-sided circular knitting machine needle cylinder structure, comprising a machine body and a needle groove, wherein the machine body is an annular structure, and a knitting needle is vertically movable in the needle groove;

[0007] The machine body is also provided with a lifting ring, a triangular convex block and an electric push block;

[0008] The lifting ring is rotatably arranged on the lower part of the knitting needle along the axis of the machine body;

[0009] The number of the triangular protrusions is the same as the number of the knitting needles. The triangular protrusions are evenly fixed on the lifting ring around the axis of the lifting ring. The upper end surface of the triangular protrusion and the upper end surface of the lifting ring together constitute a driving end surface for driving the knitting needles to move up and down.

[0010] The first electric push rod is vertically arranged below the lifting ring. The first electric push rod is used to drive the lifting ring to move in the vertical direction. When the double-sided circular knitting machine is operating normally, the output end of the first electric push rod is in a retracted state. When the double-sided circular knitting machine is self-cleaning, the output end of the first electric push rod is fully extended and the highest point of the triangular protrusion contacts the bottom of the knitting needle;

[0011] A taking-out unit for taking out the knitting needles in a horizontal direction is provided on one side of the machine body.

[0012] Preferably, a limit plate is vertically fixedly provided on the lower side of the needle slot, and the limit plate slides with the knitting needle along the vertical direction toward the side wall of the needle slot.

[0013] Preferably, the removal unit includes a clamping claw and a second electric push rod;

[0014] The second electric push rod is arranged on one side of the machine body along the radial direction of the machine body;

[0015] The clamping claw is arranged on the output end of the second electric push rod.

[0016] Preferably, a rotating frame is provided on one side of the body along the radial direction of the body, a cleaning unit for cleaning the needle groove is provided on the rotating frame, and the cleaning unit and the removing unit are respectively located at two ends of the rotating frame along the radial direction of the body.

[0017] Preferably, the cleaning unit includes a cleaning roller and a lifting unit;

[0018] The cleaning roller is rotatably arranged below the rotating frame;

[0019] The lifting unit is arranged on the rotating frame and is used for driving the cleaning roller to move in the vertical direction.

[0020] Preferably, bristles are evenly and fixedly arranged on the outside of the cleaning roller;

[0021] An air suction cavity is provided in the cleaning roller, and an air pump for discharging air from the air suction cavity is provided on one side of the rotating frame;

[0022] An air suction hole is provided on the side wall of the cleaning roller, and the air suction hole is communicated with the air suction cavity.

[0023] Preferably, an arc plate is provided in the suction chamber, the axis of the arc plate is colinear with the axis of the cleaning roller, the concave surface of the arc plate faces the side away from the removal unit, and the arc plate is in sliding cooperation with the side wall of the suction chamber.

[0024] Preferably, the cleaning unit further comprises a connecting pipe, a follower rod, a center box and an exhaust pipe;

[0025] The connecting pipe is arranged on one side of the cleaning roller and is communicated with the suction cavity;

[0026] The follower rod is fixedly arranged at the lower part of the rotating frame along the rotating axis of the rotating frame;

[0027] The center box is fixedly arranged at the lower part of the follower rod, and the center box is a cavity structure;

[0028] The exhaust pipe is vertically arranged at the lower part of the center box and is rotatably matched with the center box. The exhaust pipe and the center box are communicated with each other.

[0029] Preferably, the connecting pipe is a corrugated pipe.

[0030] Preferably, a bracket that rotates around the body is provided on one side of the body, the rotating frame is rotatably provided on the bracket, and a third rotary driver and a Hall sensor are also provided on the bracket;

[0031] The third rotary driver is disposed on the bracket and is used to drive the turret to rotate;

[0032] A Hall sensor is horizontally arranged on one side of the bracket facing the machine body, and a plurality of sensing blocks that can be sensed by the Hall sensor are arranged on the side wall of the machine body, and the sensing blocks correspond to the knitting needles one by one.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention provides a lifting ring that rotates along the axis of the machine casing below the knitting needle, and a triangular protrusion is provided on the lifting ring. At the same time, a first electric push rod that can change the height of the lifting ring is provided below the lifting ring, so that when the double-sided circular knitting machine performs normal textile operation, the output end of the first electric push rod is in a retracted state, and the lifting ring intermittently lifts the knitting needle through the triangular protrusion during rotation. However, at this time, the knitting needle is still limited by the limit plate. After the machine body is placed and before self-cleaning, the first electric push rod lifts the lifting ring, so that the triangular protrusion further lifts the knitting needle, thereby freeing the knitting needle from the restriction of the limit plate, and then the knitting needle is clamped and taken out horizontally by the taking-out unit, ensuring that the knitting needle is not easily bent during the taking-out process. At the same time, the setting position of the lifting ring and the first electric push rod is around the machine body, and the lifting ring and the first electric push rod do not block the discharge of the cloth, thereby ensuring that the cloth in production can be discharged from the bottom of the machine body.

[0035] 2. Since the arc plate slides with the side wall of the suction chamber, the arc plate can block the side wall of the suction chamber. When the suction hole passes one side of the arc plate, the suction hole is blocked by the arc plate. By arranging the arc plate in the suction chamber, when the cleaning roller cleans the needle groove, the suction chamber can not only inhale air, but the suction holes arranged on the cleaning roller will only start to inhale air when facing the machine body, ensuring the unidirectionality of the suction holes when inhaling, and ensuring the suction force of the suction holes on the dust flying in the needle groove.

[0036] 3. The end of the connecting pipe close to the cleaning roller is fixed on the extension frame, and the end of the arc plate is fixed on the extension frame. If the follower rod and the center box are not provided, when the rotating frame drives the cleaning unit to rotate 180 degrees, the connecting pipe will bend and be pulled during the rotation process, causing the connecting pipe to be easily damaged. After the follower rod and the center box are provided, when the rotating frame rotates, the rotating frame drives the center box to rotate synchronously through the follower rod, avoiding the connecting pipe from being pulled and bent when the rotating frame rotates, thereby extending the service life of the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a three-dimensional schematic diagram of the needle cylinder structure of a self-cleaning double-sided circular knitting machine of the present invention. Figure 1 .

[0038] Figure 2 This is a three-dimensional schematic diagram of the needle cylinder structure of a self-cleaning double-sided circular knitting machine of the present invention. Figure 2 .

[0039] Figure 3 It is a side view of a needle cylinder structure for a self-cleaning double-sided circular knitting machine according to the present invention.

[0040] Figure 4 The invention is a self-cleaning double-sided circular knitting machine with a needle cylinder structure Figure 3 Schematic cross-sectional view at AA in the middle.

[0041] Figure 5 The invention is a self-cleaning double-sided circular knitting machine with a needle cylinder structure Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0042] Figure 6 It is a cutaway perspective schematic diagram of a needle cylinder structure for a self-cleaning double-sided circular knitting machine according to the present invention.

[0043] Figure 7 The invention is a self-cleaning double-sided circular knitting machine with a needle cylinder structure Figure 6 A partial enlarged schematic diagram of point C in the middle.

[0044] Figure 8 The invention is a self-cleaning double-sided circular knitting machine with a needle cylinder structure Figure 6 A local enlarged schematic diagram of point D in the middle.

[0045] Figure 9 It is a three-dimensional schematic diagram of a self-cleaning double-sided circular knitting machine with a needle cylinder structure removed from the machine body.

[0046] Figure 10 It is a three-dimensional schematic diagram of a bracket provided with a taking-out unit, a rotating frame and a cleaning unit in a needle cylinder structure for a self-cleaning double-sided circular knitting machine of the present invention.

[0047] The numbers in the figure are:

[0048] 1. Machine body; 11. Needle groove; 111. Limit plate; 12. Knitting needle; 13. Lifting ring; 131. Annular magnetic drive; 132. Lifting plate; 14. Triangular protrusion; 15. First electric push rod; 2. Taking-out unit; 21. Clamping claw; 22. Second electric push rod; 3. Rotating frame; 4. Cleaning unit; 41. Cleaning roller; 411. Suction chamber; 412. Suction hole; 413. Bristles; 414. Arc plate; 415. Connecting pipe; 416. Follow-up rod; 417. Center box; 418. Exhaust pipe; 42. Lifting unit; 421. Second rotary drive; 422. Gear; 423. Rack; 424. Extension frame; 43. First rotary drive; 5. Bracket; 51. Third rotary drive; 52. Hall sensor; 53. Induction block. DETAILED DESCRIPTION

[0049] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] Reference Figure 1-Figure 3 、 Figure 7 and Figure 9 : A self-cleaning double-sided circular knitting machine needle cylinder structure, comprising a machine body 1 and a needle groove 11, the machine body 1 is an annular structure, and a knitting needle 12 is vertically movable in the needle groove 11;

[0051] The machine body 1 is also provided with a lifting ring 13, a triangular protrusion 14 and an electric push block;

[0052] The lifting ring 13 is rotatably arranged at the lower part of the knitting needle 12 along the axis of the machine body 1;

[0053] The number of the triangular protrusions 14 is the same as the number of the knitting needles 12. The triangular protrusions 14 are evenly fixed on the lifting ring 13 around the axis of the lifting ring 13. The upper end surface of the triangular protrusion 14 and the upper end surface of the lifting ring 13 together constitute a driving end surface for driving the knitting needles 12 to move up and down.

[0054] The first electric push rod 15 is vertically arranged below the lifting ring 13. The first electric push rod 15 is used to drive the lifting ring 13 to move in the vertical direction. When the double-sided circular knitting machine is operating normally, the output end of the first electric push rod 15 is in a retracted state. When the double-sided circular knitting machine is self-cleaning, the output end of the first electric push rod 15 is fully extended and the highest point of the triangular protrusion 14 contacts the bottom of the knitting needle 12;

[0055] A take-out unit 2 for taking out the knitting needles 12 in a horizontal direction is provided on one side of the machine body 1 .

[0056] In the existing double-sided circular knitting machine, during the weaving process, the textile thread is introduced into the double-sided circular knitting machine from the upper part. After being woven by the double-sided circular knitting machine, the woven cloth is arranged through the lower part of the double-sided circular knitting machine. A winding unit for winding the cloth is usually provided below the double-sided circular knitting machine. The winding unit is prior art and will not be described in detail here. Since the knitting needles 12 need to be raised and lowered vertically within the needle groove 11 during operation, in order to prevent the knitting needles 12 from slipping out of the needle groove 11, a structure for limiting the knitting needles 12 needs to be provided in the needle groove 11. In the traditional needle removal operation, the staff usually need to manually remove the knitting needles 12 located in the needle groove 11 one by one, which is a lot of work. Chinese Patent Publication No. CN222540997U discloses a needle cylinder structure for a double-sided circular knitting machine. This structure is designed to automatically eject the knitting needles 12 before the worker removes them, making it easier for the worker to remove the needles 12. However, when the structure lifts the needles 12, it is located directly below the machine body 1. This means that the fabric formed by the machine body 1 cannot be discharged from the bottom of the machine body 1. To avoid this structure, the fabric can only be discharged from the top of the machine body 1. However, in existing double-sided circular knitting machines, the winding unit is located below the machine body 1. This is because a large number of winding drums with textile yarn wound on them are usually located above the machine body 1. If the winding unit is located above the machine body 1, the textile yarn may easily intersect with the working area of the winding unit during the process of being pulled into the machine body 1, thereby causing the winding unit and the textile yarn to interfere with each other. If the distributed structure of existing double-sided circular knitting machines is adopted, the needle cylinder structure of the double-sided circular knitting machine disclosed in Chinese Patent Publication No. CN222540997U cannot be used.

[0057] Based on the above problems, the present invention redesigns the existing needle cylinder structure for the double-sided circular knitting machine, so that the knitting needles 12 on the double-sided circular knitting machine can still be ejected before being removed. At the same time, the structure for ejecting the knitting needles 12 is not set directly under the machine body 1. Under the premise of retaining the distribution structure of the existing double-sided circular knitting machine, the knitting needles 12 can be completely ejected before being removed without forming an obstruction to the winding unit. The specific structure and working process of the present invention are as follows:

[0058] When the double-sided circular knitting machine is in normal use, the output end of the first electric push rod 15 is in a retracted state. At this time, the lifting ring 13 rotates along the axis of the casing, and the triangular protrusion 14 set on the lifting ring 13 rotates around the axis of the machine body 1. An annular magnetic driver 131 is provided on the outer periphery of the lifting ring 13, which rises and falls synchronously with the lifting ring 13. The annular magnetic driver 131 is used to drive the lifting ring 13 to rotate. A lifting plate 132 is provided below the lifting ring 13. The lifting plate 132 supports the lifting ring 13 and the annular magnetic driver 131. To provide supporting force, the output end of the first electric push rod 15 is fixedly connected to the bottom of the lifting plate 132, and a limiting plate 111 is provided in the needle groove 11 to limit the knitting needle 12. Under the limitation of the limiting plate 111, the knitting needle 12 can only move in the vertical direction, that is, the limiting plate 111 slides with the knitting needle 12 in the vertical direction toward the side wall of the needle groove 11, and the other side of the knitting needle 12 slides with the side wall of the needle groove 11 in the vertical direction, thereby ensuring that the knitting needle 12 will not tilt during normal textile operations. During the rotation of the lifting ring 13, when the triangular protrusion 14 passes the lower part of the knitting needle 12, the knitting needle 12 is lifted by the triangular protrusion 14. When the highest position of the triangular protrusion 14 moves out from the bottom of the knitting needle 12, the knitting needle 12 gradually drops. As the lifting ring 13 rotates, the effect of the knitting needle 12 continuously rising and falling in the vertical direction is achieved. When the casing completes production and starts self-cleaning, the first electric push rod 15 pushes up the lifting plate 132. Since the annular magnetic driver 131 can control the rotation angle of the rotating ring, at the same time, the annular magnetic driver 131 drives the lifting ring 13 to rotate, so that the triangular protrusion 14 is located directly below the knitting needle 12. When the first electric push rod 15 completely pushes up the lifting plate 132, the lifting ring 13 completely pushes up the knitting needle 12 through the triangular protrusion 14. At this time, the knitting needle 12 is free from the restriction of the limit plate 111. Then the removal unit 2 clamps the ejected knitting needle 12 and removes the knitting needle 12 from the needle groove 11 in the horizontal direction, thereby avoiding the knitting needle 12 from bending during the needle removal process.

[0059] By arranging a lifting ring 13 that rotates along the axis of the machine casing below the knitting needle 12, and a triangular protrusion 14 is provided on the lifting ring 13, and a first electric push rod 15 that can change the height of the lifting ring 13 is also provided below the lifting ring 13, so that when the double-sided circular knitting machine is performing normal textile operations, the output end of the first electric push rod 15 is in a retracted state, and the lifting ring 13 intermittently lifts the knitting needle 12 through the triangular protrusion 14 during the rotation process, but at this time the knitting needle 12 is still limited by the limiting plate 111. After the machine body 1 is placed and automatically Before cleaning, the first electric push rod 15 lifts the lifting ring 13, so that the triangular protrusion 14 further lifts the knitting needle 12, thereby freeing the knitting needle 12 from the restriction of the limit plate 111. The knitting needle 12 is then clamped by the removal unit 2 and taken out horizontally, ensuring that the knitting needle 12 is not easily bent during the removal process. At the same time, the setting position of the lifting ring 13 and the first electric push rod 15 is around the machine body 1. The lifting ring 13 and the first electric push rod 15 do not block the discharge of the cloth, ensuring that the cloth in production can be discharged from the bottom of the machine body 1.

[0060] Reference Figure 7 : A limit plate 111 is vertically fixed on the lower side of the needle groove 11, and the limit plate 111 slides along the vertical direction with the knitting needle 12 toward the side wall of the needle groove 11.

[0061] When the knitting needle 12 is in normal working condition, it moves up and down in the needle groove 11. In order to prevent the knitting needle 12 from tilting when moving in the needle groove 11, a limit plate 111 is vertically provided in the needle groove 11, so that when the knitting needle 12 is lifted by the triangular protrusion 14, the limit plate 111 limits the knitting needle 12 in the needle groove 11. When the double-sided circular knitting machine is working normally, the side wall of the knitting needle 12 is always in contact with the end surface of the limit plate 111 and slides in cooperation in the vertical direction. Before removing the knitting needle 12, if the first electric push rod 15 is not provided to make the lifting ring 13 rise, the knitting needle 12 in the needle groove 11 needs to be manually removed by the staff. Since the knitting needle 12 is relatively thin, it is also necessary to prevent the knitting needle 12 from being subjected to lateral force during the removal process, which may cause the knitting needle 12 to bend. However, during the removal process, it is usually impossible to avoid the knitting needle 12 being in a completely vertical state when being taken out. Therefore, by lifting and lowering the lifting ring 13, the knitting needle 12 can be pushed out from one side of the limit plate 111 by the triangular protrusion 14 on the lifting ring 13, so that the limit plate 111 no longer limits the knitting needle 12.

[0062] Reference Figure 6 and Figure 10 : The removal unit 2 includes a clamping claw 21 and a second electric push rod 22;

[0063] The second electric push rod 22 is arranged on one side of the body 1 along the radial direction of the body 1;

[0064] The clamping jaw 21 is arranged on the output end of the second electric push rod 22 .

[0065] After the output end of the first electric push rod 15 is fully extended, the knitting needle 12 slides out from one side of the limit plate 111, and the second electric push rod 22 drives the clamping jaw 21 to approach the knitting needle 12, and then the clamping jaw 21 clamps the knitting needle 12, and the second electric push rod 22 drives the clamping jaw 21 to retract. When the clamping jaw 21 retracts, the clamping jaw 21 clamps the knitting needle 12 and moves it horizontally. Since the knitting needle 12 slides out from one side of the limit plate 111, the horizontally moving knitting needle 12 will not be affected by the movement of the limit plate 111, and the knitting needle 12 will only be subjected to the clamping force in the horizontal direction, which ensures that the knitting needle 12 will not bend during the removal process.

[0066] Reference Figure 9 and Figure 10 : A rotating frame 3 is provided on one side of the body 1 along the radial direction of the body 1, and a cleaning unit 4 for cleaning the needle groove 11 is provided on the rotating frame 3. The cleaning unit 4 and the removal unit 2 are respectively located at both ends of the rotating frame 3 along the radial direction of the body 1.

[0067] When the knitting needle 12 is completely ejected, the knitting needle 12 is in a vertical state, the taking-out unit 2 faces the machine body 1, the second electric push rod 22 drives the clamping jaw 21 to extend, and then the clamping jaw 21 clamps the knitting needle 12, and the second electric push rod 22 retracts the clamping jaw 21, and then the rotating frame 3 rotates 180 degrees, and the cleaning unit 4 arranged on the rotating frame 3 faces the machine body 1, and then the cleaning unit 4 begins to clean the needle groove 11.

[0068] Reference Figure 4 、 Figure 8 and Figure 10 : The cleaning unit 4 includes a cleaning roller 41 and a lifting unit 42;

[0069] The cleaning roller 41 is rotatably arranged below the rotating frame 3;

[0070] The lifting unit 42 is disposed on the rotating frame 3 and is used to drive the cleaning roller 41 to move in the vertical direction.

[0071] A first rotary driver 43 for driving the cleaning roller 41 to rotate is provided at one end of the cleaning roller 41. The first rotary driver 43 is preferably a servo motor. When the rotating frame 3 drives the cleaning unit 4 to rotate to one side of the machine body 1, the cleaning roller 41 contacts the needle groove 11. The first rotary driver 43 drives the cleaning roller 41 to rotate, and at the same time the lifting unit 42 drives the cleaning roller 41 to move in the vertical direction, so that the rotating cleaning roller 41 can completely sweep the needle groove 11. The lifting unit 42 includes a second rotary driver 421, a gear 422, a rack 423 and an extension frame 424. The gear 422 is rotatably set on the rotating frame 3. The second rotary driver 421 is set on the rotating frame 3 and is used to drive the gear 422 to rotate. The rack 423 vertically penetrates the rotating frame 3 and vertically slides with the rotating frame 3. The rack 423 and the gear 422 are engaged with each other. The extension frame 424 is fixedly set at the bottom of the rack 423. The cleaning roller 41 is rotatably set on the extension frame 424. The second rotary driver 421 rotates by driving the gear 422, so that the rack 423 drives the extension frame 424 to rise and fall.

[0072] Reference Figure 8 : Brush bristles 413 are evenly and fixedly arranged on the outside of the cleaning roller 41;

[0073] An air suction chamber 411 is provided in the cleaning roller 41, and an air pump for discharging air from the air suction chamber 411 is provided on one side of the rotating frame 3;

[0074] An air suction hole 412 is provided on the side wall of the cleaning roller 41 , and the air suction hole 412 is communicated with the air suction cavity 411 .

[0075] When the cleaning roller 41 cleans the dust in the needle groove 11 through the bristles 413, the air pump sucks out the air in the suction chamber 411, and the outside air flows into the suction chamber 411 through the suction hole 412, preventing dust from flying everywhere when the cleaning roller 41 cleans the needle groove 11.

[0076] Reference Figure 8 : An arc-shaped plate 414 is provided in the suction chamber 411, the axis of the arc-shaped plate 414 is collinear with the axis of the cleaning roller 41, the concave surface of the arc-shaped plate 414 faces the side away from the removal unit 2, and the arc-shaped plate 414 slides with the side wall of the suction chamber 411.

[0077] Since the arc plate 414 slides with the side wall of the suction chamber 411, the arc plate 414 can block the side wall of the suction chamber 411. When the suction hole 412 passes one side of the arc plate 414, the suction hole 412 is blocked by the arc plate 414. By arranging the arc plate 414 in the suction chamber 411, when the cleaning roller 41 cleans the needle groove 11, the suction chamber 411 can not only inhale air, but the suction hole 412 arranged on the cleaning roller 41 will only start to inhale air when it is facing the body 1, ensuring the unidirectionality of the suction hole 412 when inhaling air, and ensuring the suction force of the suction hole 412 on the dust flying at the needle groove 11.

[0078] Reference Figure 10 : The cleaning unit also includes a connecting pipe 415, a follower rod 416, a center box 417 and an exhaust pipe 418;

[0079] The connecting pipe 415 is provided on one side of the cleaning roller 41 and communicates with the suction chamber 411;

[0080] The follower rod 416 is fixedly arranged at the lower part of the rotating frame 3 along the rotation axis of the rotating frame 3;

[0081] The center box 417 is fixedly arranged at the lower part of the follower rod 416, and the center box 417 is a cavity structure;

[0082] The exhaust pipe 418 is vertically arranged at the lower part of the center box 417 and is rotatably matched with the center box 417. The exhaust pipe 418 and the center box 417 are communicated with each other.

[0083] The end of the connecting tube 415 close to the cleaning roller 41 is fixedly set on the extension frame 424, and the end of the arc plate 414 is fixedly set on the extension frame 424. If the follower rod 416 and the center box 417 are not set, when the rotating frame 3 drives the cleaning unit 4 to rotate 180 degrees, the connecting tube 415 will bend and be pulled during the rotation process, causing the connecting tube 415 to be extremely easy to be damaged. After the follower rod 416 and the center box 417 are set, when the rotating frame 3 rotates, the rotating frame 3 drives the center box 417 to rotate synchronously through the follower rod 416, thereby avoiding the connecting tube 415 being pulled and bent when the rotating frame 3 rotates, thereby extending the service life of the connecting tube 415.

[0084] Reference Figures 1-10 : The connecting pipe 415 is a corrugated pipe.

[0085] When the lifting unit 42 drives the cleaning roller 41 to move up and down, the connecting pipe 415 made of corrugated pipe material can adapt to the lifting requirements of the cleaning roller 41.

[0086] Reference Figure 5 and Figure 10: A bracket 5 is provided on one side of the body 1 and rotates around the body 1. The rotating frame 3 is rotatably provided on the bracket 5. The bracket 5 is also provided with a third rotary driver 51 and a Hall sensor 52;

[0087] The third rotary driver 51 is provided on the bracket 5 and is used to drive the rotating frame 3 to rotate;

[0088] A Hall sensor 52 is horizontally arranged on one side of the bracket 5 facing the body 1 , and a plurality of sensing blocks 53 that can be sensed by the Hall sensor 52 are arranged on the side wall of the body 1 . The sensing blocks 53 correspond to the knitting needles 12 one by one.

[0089] When the double-sided circular knitting machine is performing self-cleaning, the bracket 5 rotates around the body 1, and the rotation angle is the same each time. The position of the bracket 5 is positioned by the Hall sensor 52 and the sensing block 53, so that after the bracket 5 stops, the taking-out unit 2 is located exactly on one side of the knitting needle 12. Regarding the driving mode of the bracket 5, electromagnetic drive or hydraulic drive can be adopted, and the specific driving mode can be selected according to actual conditions.

[0090] Working principle: When the double-sided circular knitting machine is in normal use, the output end of the first electric push rod 15 is in a retracted state. At this time, the lifting ring 13 rotates along the axis of the casing, and the triangular protrusion 14 set on the lifting ring 13 rotates around the axis of the machine body 1. An annular magnetic driver 131 is provided on the outer periphery of the lifting ring 13, which rises and falls synchronously with the lifting ring 13. The annular magnetic driver 131 is used to drive the lifting ring 13 to rotate. A lifting plate 132 is provided below the lifting ring 13. The lifting plate 132 supports the lifting ring 13 and the annular magnetic driver 1 31 provides support force, the output end of the first electric push rod 15 is fixedly connected to the bottom of the lifting plate 132, and a limit plate 111 is provided in the needle groove 11 to limit the knitting needle 12. Under the limit of the limit plate 111, the knitting needle 12 can only move in the vertical direction, that is, the limit plate 111 slides with the knitting needle 12 in the vertical direction toward the side wall of the needle groove 11, and the other side of the knitting needle 12 slides with the side wall of the needle groove 11 in the vertical direction, thereby ensuring that the knitting needle 12 will not tilt during normal textile operations. During the rotation of the lifting ring 13, when the triangular protrusion 14 passes the lower part of the knitting needle 12, the knitting needle 12 is lifted by the triangular protrusion 14. When the highest position of the triangular protrusion 14 moves out from the bottom of the knitting needle 12, the knitting needle 12 gradually drops. As the lifting ring 13 rotates, the effect of the knitting needle 12 continuously rising and falling in the vertical direction is achieved. When the casing completes production and starts self-cleaning, the first electric push rod 15 pushes up the lifting plate 132. Since the annular magnetic driver 131 can control the rotation angle of the rotating ring, at the same time, the annular magnetic driver 131 drives the lifting ring 13 to rotate, so that the triangular protrusion 14 is located directly below the knitting needle 12. When the first electric push rod 15 completely pushes up the lifting plate 132, the lifting ring 13 completely pushes up the knitting needle 12 through the triangular protrusion 14. At this time, the knitting needle 12 is free from the restriction of the limit plate 111. Then the removal unit 2 clamps the ejected knitting needle 12 and removes the knitting needle 12 from the needle groove 11 in the horizontal direction, thereby avoiding the knitting needle 12 from bending during the needle removal process.

[0091] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. A self-cleaning double-sided circular knitting machine needle cylinder structure, comprising a machine body (1) and a needle groove (11), wherein the machine body (1) is an annular structure, and a knitting needle (12) is vertically movable in the needle groove (11); It is characterized by: The machine body (1) is also provided with a lifting ring (13), a triangular protrusion (14) and an electric push block; A lifting ring (13) is rotatably arranged on the lower part of the knitting needle (12) along the axis of the machine body (1); The number of the triangular protrusions (14) is the same as the number of the knitting needles (12); the triangular protrusions (14) are evenly fixedly arranged on the lifting ring (13) around the axis of the lifting ring (13); the upper end surface of the triangular protrusions (14) and the upper end surface of the lifting ring (13) together constitute a driving end surface for driving the knitting needles (12) to move up and down; The first electric push rod (15) is vertically arranged below the lifting ring (13), and the first electric push rod (15) is used to drive the lifting ring (13) to move in the vertical direction. When the double-sided circular knitting machine is operating normally, the output end of the first electric push rod (15) is in a retracted state. When the double-sided circular knitting machine is self-cleaning, the output end of the first electric push rod (15) is fully extended and the highest point of the triangular protrusion (14) contacts the bottom of the knitting needle (12); A taking-out unit (2) for taking out the knitting needles (12) in a horizontal direction is provided on one side of the machine body (1).

2. A self-cleaning double-sided circular knitting machine needle cylinder structure according to claim 1, characterized in that: A limiting plate (111) is vertically fixedly provided on the lower side of the needle groove (11), and the limiting plate (111) slides in cooperation with the knitting needle (12) in a vertical direction toward the side wall of the needle groove (11).

3. The self-cleaning needle cylinder structure for a double-sided circular knitting machine according to claim 1, characterized in that: The removal unit (2) comprises a clamping claw (21) and a second electric push rod (22); The second electric push rod (22) is arranged on one side of the machine body (1) along the radial direction of the machine body (1); The clamping claw (21) is arranged on the output end of the second electric push rod (22).

4. The self-cleaning needle cylinder structure for a double-sided circular knitting machine according to claim 1, characterized in that: A rotating frame (3) is provided on one side of the machine body (1) along the radial direction of the machine body (1), and a cleaning unit (4) for cleaning the needle groove (11) is provided on the rotating frame (3). The cleaning unit (4) and the removal unit (2) are respectively located at two ends of the rotating frame (3) along the radial direction of the machine body (1).

5. The self-cleaning needle cylinder structure for a double-sided circular knitting machine according to claim 4, characterized in that: The cleaning unit (4) includes a cleaning roller (41) and a lifting unit (42); The cleaning roller (41) is rotatably arranged below the rotating frame (3); The lifting unit (42) is arranged on the rotating frame (3) and is used to drive the cleaning roller (41) to move in the vertical direction.

6. The self-cleaning needle cylinder structure for a double-sided circular knitting machine according to claim 5, characterized in that: Brush bristles (413) are evenly and fixedly arranged on the outside of the cleaning roller (41); An air suction cavity (411) is provided in the cleaning roller (41), and an air pump for discharging air from the air suction cavity (411) is provided on one side of the rotating frame (3); An air suction hole (412) is provided on the side wall of the cleaning roller (41), and the air suction hole (412) is communicated with the air suction cavity (411).

7. The self-cleaning needle cylinder structure for a double-sided circular knitting machine according to claim 6, characterized in that: An arc-shaped plate (414) is provided in the suction chamber (411), the axis of the arc-shaped plate (414) is colinear with the axis of the cleaning roller (41), the concave surface of the arc-shaped plate (414) faces the side away from the removal unit (2), and the arc-shaped plate (414) is in sliding engagement with the side wall of the suction chamber (411).

8. The self-cleaning needle cylinder structure for a double-sided circular knitting machine according to claim 6, characterized in that: The cleaning unit further comprises a connecting pipe (415), a follower rod (416), a center box (417) and an exhaust pipe (418); The connecting pipe (415) is arranged on one side of the cleaning roller (41) and is communicated with the suction chamber (411); The follower rod (416) is fixedly arranged at the lower part of the rotating frame (3) along the rotating axis of the rotating frame (3); The center box (417) is fixedly arranged at the lower part of the follower rod (416), and the center box (417) is a cavity structure; The exhaust pipe (418) is vertically arranged at the lower part of the center box (417) and is rotatably matched with the center box (417). The exhaust pipe (418) and the center box (417) are communicated with each other.

9. The self-cleaning needle cylinder structure for a double-sided circular knitting machine according to claim 8, characterized in that: The connecting pipe (415) is a corrugated pipe.

10. The self-cleaning needle cylinder structure for a double-sided circular knitting machine according to claim 4, characterized in that: A bracket (5) is provided on one side of the machine body (1) and rotates around the machine body (1). The rotating frame (3) is rotatably provided on the bracket (5). A third rotary driver (51) and a Hall sensor (52) are also provided on the bracket (5). A third rotary driver (51) is provided on the bracket (5) and is used to drive the rotating frame (3) to rotate; A Hall sensor (52) is horizontally arranged on one side of the bracket (5) facing the machine body (1), and a plurality of sensing blocks (53) that can be sensed by the Hall sensor (52) are arranged on the side wall of the machine body (1), and the sensing blocks (53) correspond to the knitting needles (12) one by one.

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