A blowing device in a knitting machine

Abstract

The application belongs to the technical field of knitting machines, and particularly relates to a blowing device in a knitting machine, which comprises a shell, a sliding column slidably connected in the shell and fixedly connected with a guide tooth on one side, a gear rotatably connected in the shell and engaged with the guide tooth, a motor fixedly connected in the shell and driving the gear through a belt, a cavity formed in the sliding column, an air inlet pipe arranged on one side of the sliding column and connecting the cavity with an air pump, a ball groove formed on one side of the sliding column, a ball head connected with a spray head in the ball groove and communicated with the cavity, and the motor is controlled to drive the sliding column to reciprocate in the sliding groove, and the air pump supplies air to the cavity through the air inlet pipe, so that the spray head sprays air outward and swings back and forth in the through groove, the disadvantages of one-way blowing are solved, the cleaning range is wider, the effect of cleaning the yarn hair is improved, the movement of each component is more smooth, there is no serious friction and collision, and the service life of the device is improved.

Description

[0001] This invention is a divisional application of the invention application filed on May 28, 2021, with application number 202211567845.X and title "An air blowing device in a knitting machine". Technical Field

[0002] This invention belongs to the field of knitting machine technology, specifically an air blowing device for knitting machines. Background Technology

[0003] In the textile industry, a large amount of yarn lint is generated during the weaving process, and the yarn lint attached to the surface of the textile raw materials also falls off during weaving. If the continuously generated yarn lint is not cleaned in time, it will accumulate in many parts of the machine, such as the needle groove, yarn feeder, and yarn nozzle, as well as on the surface of the fabric, affecting the normal operation of the machine and increasing the number of defective fabrics. It will also pollute the knitting machine and the surrounding environment. Existing methods often use air jet dust removal devices to clean the yarn lint, but these air jet dust removal devices often have the disadvantages of being inconvenient to control and only able to blow in one direction. The effect of cleaning yarn lint is poor, and sometimes it is easy to send new sources of pollution to the knitted fabric with the air, causing secondary pollution. These devices have certain drawbacks.

[0004] Existing technologies also include some technical solutions for knitting machines. For example, a Chinese patent with application number 201811386313X discloses a knitting machine air jet dust removal control device, including a blower, a dust removal box, a dust removal air hole, and a top fixing plate. The right end of the blower is connected to an air blowing pipe, and the right end of the air blowing pipe is sleeved on the air inlet pipe. The air inlet pipe is integrally set on the left end of the dust removal box. In this invention, the motor can drive the dust removal movable head in the steering groove on the dust removal box to rotate through the control lever, so that the dust removal air hole can swing back and forth when blowing air, which increases the dust removal effect and replaces the single-direction blowing method. In this invention, the opening of the dust removal air hole at the lower end of the dust removal movable head is sealed with a filter screen, which has the function of filtering the air and preventing new pollutants from being sent to the knitted fabric with the air, causing secondary pollution, thus solving the above-mentioned drawbacks.

[0005] In the aforementioned technologies, prolonged friction and collision between the control lever and the dust removal movable head can easily lead to extensive wear and even breakage of both, thereby affecting the normal operation of the blowing device, increasing the number of maintenance visits and costs, which does not conform to the economic efficiency principle of the manufacturing industry.

[0006] Therefore, the present invention provides an air blowing device for a knitting machine. Summary of the Invention

[0007] To overcome the shortcomings of existing technologies and solve the problem that prolonged friction and collision between the control lever and the dust removal head can easily lead to excessive wear and even breakage of the control lever and the dust removal head, thereby affecting the normal operation of the air blowing device, increasing the number of maintenance times and costs, and failing to meet the economic efficiency principle of the manufacturing industry, this invention proposes an air blowing device for knitting machines.

[0008] The technical solution adopted by this invention to solve its technical problem is as follows: An air blowing device for a knitting machine, comprising a housing; a base plate fixedly connected inside the housing; a sliding groove formed on the base plate; a sliding column slidably connected in the sliding groove, and a guide tooth fixedly connected to one side of the sliding column; a gear rotatably connected to the housing near the guide tooth via a bracket, and the gear meshing with the guide tooth; a motor fixedly connected to the housing near the gear; the motor driving the gear via a belt; a cavity formed in the sliding column; an air inlet pipe provided on one side of the sliding column, one end of which communicates with the cavity, and the other end extending outside the housing and communicating with an air pump; a ball groove formed on the side of the sliding column away from the guide tooth, a nozzle connected to a ball head in the ball groove, and the nozzle communicating with the cavity; the nozzle extending outside the housing, and a through groove formed on the housing corresponding to the nozzle; the nozzle and the through groove... A rubber ring is used for interlocking. In existing technology, the control lever and the dust removal moving head rub and collide for a long time during operation, which easily leads to a lot of wear and even breakage of the control lever and the dust removal moving head, thus affecting the normal operation of the blowing device, increasing the number of maintenance and costs, which is not in line with the economic efficiency principle of manufacturing. At this time, the present invention controls the forward and reverse rotation of the motor, drives the gear to rotate forward and reverse, and then drives the slide column to reciprocate in the slide groove, so that the ball head of the nozzle rotates in the ball groove. At the same time, the air pump supplies air to the cavity through the air inlet pipe, and the air is sprayed out through the nozzle. Thus, the nozzle sprays air outward in the through groove and swings back and forth. The structure is simple and reliable, the manufacturing cost is low, and it solves the drawbacks of unidirectional blowing. The back and forth swing of the nozzle makes the cleaning range wider and improves the cleaning effect of yarn and lint. At the same time, the movement of each component is smoother, there is no serious friction and collision, and the service life of the device is improved.

[0009] Preferably, a first spring is fixed between the end of the slide column near the air intake pipe and the housing; the gear is half toothed and half toothless; during operation, by controlling the motor to rotate in one direction, the gear is driven to rotate in one direction. When the toothed half of the gear meshes with the guide tooth, the slide column slides away from the first spring. When the toothless half of the gear rotates to the corresponding position, the slide column returns to its original position under the tension of the first spring. Thus, the motor can achieve the reciprocating motion of the slide column without reversing, simplifying the motor control circuit, saving costs, and making operation convenient.

[0010] Preferably, a piston cylinder is fixedly connected between the end of the slide column away from the air inlet pipe and the housing; a piston is slidably connected in the piston cylinder; a piston rod is fixedly connected to the side of the piston near the cylinder head, and the end of the piston rod extending out of the cylinder head is fixedly connected to the slide column; a damping hole is provided on the piston; during operation, by controlling the motor to rotate in one direction, the gear is driven to rotate in one direction. When half of the toothed gear meshes with the guide tooth, the slide column slides away from the first spring. When the toothless half of the gear rotates to the corresponding position, the slide column resets under the action of the first spring's tension. The gas in the rod chamber of the piston cylinder enters the rodless chamber through the damping hole, thereby making the reset of the slide column slower, preventing the spring tension from being too large during the reset process, which would cause the nozzle to swing too fast, thus improving the cleaning effect.

[0011] Preferably, the root of the guide tooth is provided with a vent hole, and the vent hole is connected to the rodless chamber of the piston cylinder through an exhaust pipe. During operation, by controlling the motor to rotate in one direction, the gear is driven to rotate in one direction. When half of the toothed part of the gear meshes with the guide tooth, the slide block slides away from the first spring. The gas in the rodless chamber of the piston cylinder is ejected from the vent hole through the exhaust pipe, which cools down the guide tooth and the gear, preventing the guide tooth and the gear from reducing working efficiency due to excessive temperature, and further improving the service life of the device.

[0012] Preferably, a set of blades is rotatably connected to one end of the nozzle extending outside the housing via a pivot pin, and the blades are evenly distributed circumferentially on the nozzle end face; the blades seal the nozzle and can open outwards; a second spring is fixed between the inner wall of the nozzle and the blades; during operation, the air pump supplies air to the cavity through the air inlet pipe, the air compresses the blades and causes them to open outwards, and then the air is sprayed outwards to clean the yarn and lint. When the air blowing device is not working, the blades retract under the tension of the second spring and press tightly against the nozzle end face, sealing the nozzle and preventing yarn and other foreign objects from entering the nozzle and causing blockage, further improving the service life of the device.

[0013] Preferably, a heating element is fixedly connected to the ball head of the nozzle; a filter screen is fixedly connected to the air inlet end of the nozzle, and the filter screen is made of insulating material; the heating element and the filter screen are connected in series and then connected to the power supply; during operation, when the air supplied by the air pump has a high humidity, the air passes through the filter screen and becomes damp and conductive, thereby connecting the circuit, and the power supply provides power to the heating element, which in turn heats and dehumidifies the air entering the nozzle, preventing the sprayed gas from having excessive humidity, which would cause yarn and lint to adhere to other equipment and be difficult to remove. At the same time, the filter screen can prevent impurities in the pumped gas from being blown onto the knitted fabric, causing secondary pollution.

[0014] Preferably, a conical groove is formed in the sliding column between the nozzle and the cavity, with the large end of the conical groove communicating with the cavity and the small end communicating with the nozzle; a fixing block is fixedly connected in the conical groove, and one side of the fixing block is slidably connected to the ball head of the nozzle; a dirt collection hole is formed on the fixing block; during operation, when the ball head of the nozzle rotates in the ball groove, the fixing block scrapes the debris on the surface of the filter screen and scoops it into the dirt collection hole, which increases the self-cleaning function, prevents excessive debris from accumulating on the filter screen and causing blockage, and further improves the service life of the device.

[0015] Preferably, a push rod is fixedly connected to the side of the filter screen near the conical groove, and the axis of the push rod is aligned with the dirt collection hole; gel is fixedly connected to the dirt collection hole; during operation, when the ball head of the nozzle rotates in the ball groove, the fixing block scrapes the debris on the surface of the filter screen and scoops it into the dirt collection hole. During this process, the debris may accumulate at the neck of the dirt collection hole. The push rod pushes the debris accumulated at the neck of the dirt collection hole further into the depth of the dirt collection hole. At the same time, the gel in the dirt collection hole adsorbs the debris, preventing the debris from sliding out of the dirt collection hole during operation, preventing excessive accumulation of debris on the filter screen and clogging, and further improving the self-cleaning effect.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The air blowing device in the knitting machine described in this invention controls the forward and reverse rotation of the motor, which drives the gear to rotate forward and reverse, thereby driving the slide column to reciprocate in the slide groove. This causes the ball head of the nozzle to rotate in the ball groove. At the same time, the air pump supplies air to the cavity through the air inlet pipe, and the air is ejected through the nozzle. Thus, the nozzle blows air outward in the through groove and swings back and forth. The structure is simple and reliable, and the manufacturing cost is low. It solves the drawbacks of unidirectional blowing. The back and forth swing of the nozzle makes the cleaning range wider and improves the cleaning effect of yarn lint. At the same time, the movement of each component is smoother, and there is no serious friction or collision, which improves the service life of the device.

[0018] 2. The air blowing device in the knitting machine described in this invention controls the motor to rotate in one direction, which in turn drives the gear to rotate in one direction. When half of the gear with teeth meshes with the guide teeth, the slide block slides away from the first spring. When the half of the gear without teeth rotates to the corresponding position, the slide block resets under the pull of the first spring. Thus, the motor can achieve the reciprocating motion of the slide block without having to rotate forward or backward, which simplifies the motor control circuit, saves costs, and is easy to operate.

[0019] 3. The air blowing device in the knitting machine described in this invention controls the motor to rotate in one direction, which in turn drives the gear to rotate in one direction. When half of the gear with teeth meshes with the guide teeth, the slide column slides away from the first spring. When the half of the gear without teeth rotates to the corresponding position, the slide column resets under the pull of the first spring. The gas in the rod chamber of the piston cylinder enters the rodless chamber through the damping hole, thereby making the reset of the slide column slower and preventing the spring pull from being too large during the reset process, which would cause the nozzle to swing too fast, thus improving the cleaning effect. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0025] Figure 5 yes Figure 3 A magnified view of a section at point C;

[0026] Figure 6 yes Figure 3 A magnified view of a section at point D;

[0027] Figure 7 yes Figure 3 A magnified view of a section at point E in the middle;

[0028] Figure 8 yes Figure 7 A magnified view of a section at point F in the middle;

[0029] In the diagram: 1. Shell; 2. Seat plate; 3. Slide groove; 4. Slide column; 5. Guide gear; 6. Gear; 7. Motor; 8. Belt; 9. Cavity; 10. Inlet pipe; 11. Nozzle; 12. Through groove; 13. Rubber ring; 14. Spring No. 1; 15. Piston cylinder; 16. Piston; 17. Piston rod; 18. Damping hole; 19. Vent hole; 20. Exhaust pipe; 21. Blade; 22. Spring No. 2; 23. Heating element; 24. Filter screen; 25. Conical groove; 26. Fixing block; 27. Sludge collection hole; 28. Push rod; 29. ​​Gel. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1 to 8 As shown, the air blowing device in the knitting machine of the present invention includes a housing 1; a base plate 2 is fixedly connected inside the housing 1; a sliding groove 3 is provided on the base plate 2; a sliding column 4 is slidably connected in the sliding groove 3, and a guide tooth 5 is fixedly connected to one side of the sliding column 4; a gear 6 is rotatably connected to the housing 1 near the guide tooth 5 via a bracket, and the gear 6 meshes with the guide tooth 5; a motor 7 is fixedly connected to the housing 1 near the gear 6; the motor 7 drives the gear 6 via a belt 8; a cavity 9 is provided in the sliding column 4; an air inlet pipe 10 is provided on one side of the sliding column 4, one end of the air inlet pipe 10 is connected to the cavity 9, and the other end extends to the outside of the housing 1 and is connected to an air pump; a ball groove is provided on the side of the sliding column 4 away from the guide tooth 5, and a nozzle 11 is connected to the ball head in the ball groove, and the nozzle 11 is connected to the cavity 9; the nozzle 11 extends to the outside of the housing 1, and a through groove 12 is provided on the housing 1 corresponding to the nozzle 11; the nozzle 11 and A rubber ring 13 is fixedly connected between the through grooves 12. During operation, in the prior art, the control lever and the dust removal moving head rub and collide for a long time, which easily leads to a lot of wear and even breakage of the control lever and the dust removal moving head, thus affecting the normal operation of the blowing device, increasing the number of maintenance and costs, which does not conform to the economic efficiency principle of manufacturing. At this time, the present invention controls the forward and reverse rotation of the motor 7, drives the gear 6 to rotate forward and reverse, and then drives the slide column 4 to reciprocate in the slide groove 3, so that the ball head of the nozzle 11 rotates in the ball groove. At the same time, the air pump supplies air to the cavity 9 through the air inlet pipe 10, and the air is sprayed out through the nozzle 11. Thus, the nozzle 11 sprays air outward in the through groove 12 and swings back and forth. The structure is simple and reliable, the manufacturing cost is low, and the drawbacks of unidirectional blowing are solved. The back and forth swing of the nozzle 11 makes the cleaning range wider and improves the cleaning effect of yarn and lint. At the same time, the movement of each component is more smooth, there is no serious friction and collision, and the service life of the device is improved.

[0032] In one embodiment of the present invention, a first spring 14 is fixedly connected between the end of the slide column 4 near the intake pipe 10 and the housing 1; the gear 6 is half toothed and half toothless; during operation, the motor 7 is controlled to rotate in one direction, which drives the gear 6 to rotate in one direction. When the toothed half of the gear 6 meshes with the guide tooth 5, the slide column 4 slides away from the first spring 14. When the toothless half of the gear 6 rotates to the corresponding position, the slide column 4 returns to its original position under the pulling force of the first spring 14. Thus, the motor 7 can realize the reciprocating motion of the slide column 4 without reversing, which simplifies the control circuit of the motor 7, saves costs, and is easy to operate.

[0033] In one embodiment of the present invention, a piston cylinder 15 is fixedly connected between the end of the sliding column 4 away from the air inlet pipe 10 and the housing 1; a piston 16 is slidably connected in the piston cylinder 15; a piston rod 17 is fixedly connected to the side of the piston 16 near the cylinder head, and the end of the piston rod 17 extending out of the cylinder head is fixedly connected to the sliding column 4; a damping hole 18 is provided on the piston 16; during operation, by controlling the motor 7 to rotate in one direction, the gear 6 is driven to rotate in one direction. When half of the toothed part of the gear 6 meshes with the guide tooth 5, the sliding column 4 slides away from the first spring 14. When the toothless part of the gear 6 rotates to the corresponding position, the sliding column 4 resets under the action of the tension of the first spring 14. The gas in the rod chamber of the piston cylinder 15 enters the rodless chamber through the damping hole 18, thereby making the reset of the sliding column 4 slower, preventing the spring tension from being too large during the reset process, causing the nozzle 11 to swing too fast, and improving the cleaning effect.

[0034] In one embodiment of the present invention, the root of the guide tooth 5 is provided with a vent hole 19, and the vent hole 19 is connected to the rodless chamber of the piston cylinder 15 through the exhaust pipe 20. During operation, the motor 7 is controlled to rotate in one direction, which drives the gear 6 to rotate in one direction. When half of the teeth of the gear 6 meshes with the guide tooth 5, the slide column 4 slides away from the first spring 14. The gas in the rodless chamber of the piston cylinder 15 is ejected from the vent hole 19 through the exhaust pipe 20 to cool down the guide tooth 5 and the gear 6, preventing the guide tooth 5 and the gear 6 from reducing their working efficiency due to excessive temperature, and further improving the service life of the device.

[0035] In one embodiment of the present invention, a set of blades 21 are rotatably connected to one end of the nozzle 11 extending outside the housing 1 via a pivot pin, and the blades 21 are evenly distributed circumferentially on the end face of the nozzle 11; the blades 21 seal the nozzle 11 and can open outward from the nozzle 11; a second spring 22 is fixedly connected between the inner wall of the nozzle 11 and the blades 21; during operation, the air pump supplies air to the cavity 9 through the air inlet pipe 10, the air compresses the blades 21 and causes them to open outward, and then the air is sprayed outward to clean the yarn and lint. When the air blowing device is not working, the blades 21 retract under the tension of the second spring 22 and stick tightly to the end face of the nozzle 11, so that the nozzle 11 is sealed, preventing yarn and other foreign objects from entering the nozzle 11 and causing blockage, and further improving the service life of the device.

[0036] In one embodiment of the present invention, an electric heating element 23 is fixedly connected to the ball head of the nozzle 11; a filter screen 24 is fixedly connected to the air inlet end of the nozzle 11, and the filter screen 24 is made of insulating material; the electric heating element 23 and the filter screen 24 are connected in series and then connected to the power supply; during operation, when the air supplied by the air pump has a high humidity, the air passes through the filter screen 24 and becomes damp and conductive, thereby connecting the circuit, and the power supply supplies power to the electric heating element 23, which in turn heats and dehumidifies the air entering the nozzle 11, preventing the sprayed gas from having too high humidity, which would cause yarn to adhere to other equipment and be difficult to remove. At the same time, the filter screen 24 can prevent impurities in the pumped gas from being blown onto the knitted fabric, causing secondary pollution.

[0037] In one embodiment of the present invention, a conical groove 25 is provided in the sliding column 4 between the nozzle 11 and the cavity 9, with the large end of the conical groove 25 communicating with the cavity 9 and the small end communicating with the nozzle 11; a fixing block 26 is fixedly connected in the conical groove 25, and one side of the fixing block 26 is slidably connected to the ball head of the nozzle 11; a dirt collection hole 27 is provided on the fixing block 26; during operation, when the ball head of the nozzle 11 rotates in the ball groove, the fixing block 26 scrapes the debris on the surface of the filter screen 24 and scoops it into the dirt collection hole 27, which increases the self-cleaning function, prevents excessive accumulation of debris on the filter screen 24 and clogging, and further improves the service life of the device.

[0038] In one embodiment of the present invention, a push rod 28 is fixedly connected to the side of the filter screen 24 near the conical groove 25, and the axis of the push rod 28 is aligned with the dirt collection hole 27; a gel 29 is fixedly connected to the dirt collection hole 27; during operation, when the ball head of the nozzle 11 rotates in the ball groove, the fixing block 26 scrapes the debris on the surface of the filter screen 24 and scoops it into the dirt collection hole 27. During this process, the debris may accumulate at the neck of the dirt collection hole 27. The push rod 28 pushes the debris accumulated at the neck of the dirt collection hole 27 further into the depth of the dirt collection hole 27. At the same time, the gel 29 in the dirt collection hole 27 adsorbs the debris, preventing the debris from sliding out of the dirt collection hole 27 during operation, preventing excessive debris accumulation on the filter screen 24 from clogging it, and further improving the self-cleaning effect.

[0039] During operation, controlling the forward and reverse rotation of motor 7 drives gear 6 to rotate in both directions, which in turn drives slide column 4 to reciprocate in slide groove 3. This causes the ball head of nozzle 11 to rotate in the ball groove. Simultaneously, air pump supplies air to cavity 9 through air inlet pipe 10, and air is ejected through nozzle 11. Thus, nozzle 11 sprays air outward in through groove 12 and swings back and forth. The structure is simple and reliable, with low manufacturing cost. It solves the drawbacks of unidirectional blowing. The back-and-forth swing of nozzle 11 widens the cleaning range and improves the cleaning effect of yarn and lint. At the same time, the movement of each component is smoother, and there is no serious friction or collision, which improves the service life of the device. By controlling the motor 7 to rotate in one direction, it drives gear 6 to rotate in one direction. When half of the tooth of gear 6 meshes with guide tooth 5, slide column 4 moves away from the first position. When the toothless half of the gear 6 rotates to the corresponding position, the slide column 4 returns to its original position under the tension of the first spring 14. This allows the motor 7 to achieve the reciprocating motion of the slide column 4 without needing to rotate in either direction, simplifying the motor 7 control circuit, saving costs, and making operation convenient. By controlling the motor 7 to rotate in one direction, the gear 6 rotates in one direction. When the toothed half of the gear 6 meshes with the guide tooth 5, the slide column 4 slides away from the first spring 14. When the toothless half of the gear 6 rotates to the corresponding position, the slide column 4 returns to its original position under the tension of the first spring 14. The gas in the rod chamber of the piston cylinder 15 enters the rodless chamber through the damping hole 18, thus making the return of the slide column 4 slower and preventing excessive spring tension during the return process, which could cause the nozzle 11 to swing excessively. In fast-moving situations, the cleaning effect is improved. By controlling the motor 7 to rotate in one direction, the gear 6 rotates in one direction. When half of the teeth of the gear 6 meshes with the guide tooth 5, the slide column 4 slides away from the first spring 14. The gas in the rodless chamber of the piston cylinder 15 is ejected from the vent hole 19 through the exhaust pipe 20, cooling the guide tooth 5 and the gear 6 and preventing the guide tooth 5 and the gear 6 from reducing their working efficiency due to excessive temperature, thus further improving the service life of the device. The air pump supplies air to the cavity 9 through the air inlet pipe 10. The air compresses the blade 21 and makes it open outward, and then the air is ejected outward to clean the yarn. When the blowing device is not working, the blade 21 retracts under the tension of the second spring 22 and sticks tightly to the end face of the nozzle 11, sealing the nozzle 11 and preventing yarn from getting out of the air. Foreign objects entering the nozzle 11 can cause blockage, further improving the service life of the device. When the air supplied by the air pump has high humidity, the air passes through the filter screen 24 and becomes damp and conductive, thus connecting the circuit. The power supply powers the heating element 23, which in turn heats and dehumidifies the air entering the nozzle 11, preventing the sprayed gas from having excessive humidity, which would cause yarn to adhere to other equipment and be difficult to remove. At the same time, the filter screen 24 can prevent impurities in the pumped gas from being blown onto the knitted fabric, causing secondary pollution. When the ball head of the nozzle 11 rotates in the ball groove, the fixing block 26 scrapes the impurities on the surface of the filter screen 24 and scoops them into the dirt collection hole 27, increasing the self-cleaning function and preventing excessive accumulation of impurities on the filter screen 24, which would cause blockage and further improve the service life of the device.When the ball head of nozzle 11 rotates in the ball groove, the fixing block 26 scrapes away debris from the surface of filter screen 24 and scoops it into the collection hole 27. During this process, debris may accumulate at the neck of the collection hole 27. The push rod 28 further pushes the debris accumulated at the neck of the collection hole 27 deeper into the collection hole 27. At the same time, the gel 29 in the collection hole 27 adsorbs the debris, preventing it from sliding out of the collection hole 27 during operation. This prevents excessive accumulation of debris on the filter screen 24 and clogging, further improving the self-cleaning effect.

[0040] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0041] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blowing device in a knitting machine, characterized in that: The utility model provides a kind of air purifier, including shell (1);The shell (1) is fixedly connected with seat plate (2);The seat plate (2) is equipped with sliding slot (3);Slip column (4) is slidably connected in the sliding slot (3), and one side of slip column (4) is fixedly connected with guide tooth (5);Gear (6) is rotatably connected by support in the shell (1) close to guide tooth (5) position, and gear (6) is engaged with guide tooth (5);Motor (7) is fixedly connected with one side of gear (6) in the shell (1);Motor (7) drives gear (6) by belt (8);Cavity (9) is equipped in the slip column (4);One side of slip column (4) is equipped with air inlet pipe (10), one end of air inlet pipe (10) is communicated with cavity (9), and the other end extends to shell (1) outside and is communicated with air pump;Ball groove is equipped in the side of slip column (4) away from guide tooth (5), ball head is connected with nozzle (11) in the ball groove, and nozzle (11) is communicated with cavity (9);Nozzle (11) extends to shell (1) outside, and the shell (1) corresponding with nozzle (11) is equipped with through slot (12);Rubber ring (13) is fixedly connected between nozzle (11) and through slot (12); One end of slip column (4) away from air inlet pipe (10) and shell (1) are fixedly connected with piston cylinder (15);Piston (16) is slidably connected in the piston cylinder (15);Piston rod (17) is fixedly connected with the side of piston (16) close to cylinder cover, and one end of piston rod (17) out of cylinder cover is fixedly connected with slip column (4);Damping hole (18) is equipped on the piston (16). By controlling motor (7) positive and negative rotation, gear (6) positive and negative rotation is driven, and then slip column (4) is reciprocated in sliding slot (3), so that the ball head of nozzle (11) rotates in ball groove, while air pump supplies air to cavity (9) through air inlet pipe (10), air is sprayed out through nozzle (11), so that nozzle (11) sprays air and swings back and forth in through slot (12). The gas in the rod cavity of piston cylinder (15) enters the rodless cavity through damping hole (18), so that the reset of slip column (4) is slower.

2. The air blowing device in a knitting machine according to claim 1, characterized in that: The root of guide tooth (5) is equipped with air hole (19), and air hole (19) is communicated with the rodless cavity of piston cylinder (15) through exhaust pipe (20).

3. The air blowing device in a knitting machine according to claim 1, characterized in that: One end of nozzle (11) extending to shell (1) outside is rotatably connected with a group of blades (21) through rotating pin, and blades (21) are circumferentially distributed on the end face of nozzle (11);Blades (21) seal nozzle (11), and can open outwards to nozzle (11);Second spring (22) is fixedly connected between the inner wall of nozzle (11) and blades (21).

4. The air blowing device in a knitting machine according to claim 1, characterized in that: Tapered groove (25) is equipped in the slip column (4) between nozzle (11) and cavity (9), and the large end of tapered groove (25) is communicated with cavity (9), and the small end is communicated with nozzle (11);Fixed block (26) is fixedly connected in the tapered groove (25), and the ball head of nozzle (11) is slidably connected with one side of fixed block (26);Sewage collecting hole (27) is equipped on the fixed block (26).

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