A syringe alignment adjustment device and method for a double-sided circular knitting machine

Abstract

This invention discloses a needle cylinder alignment adjustment device and method for a double-sided circular knitting machine, comprising an upper needle plate, a needle cylinder, a large cauldron gear, a large cauldron frame, a base gear, a needle tube shaft, a positioning component, and a power mechanism. A needle plate seat is provided at the lower end of the needle tube shaft, and the upper end of the needle tube shaft is fixedly connected to the large cauldron gear. The upper needle plate is fixed on the needle plate seat. The needle cylinder and the base gear are concentrically arranged and fixedly connected by bolts. The large cauldron gear and the base gear have the same number of teeth. The power mechanism includes a first gear, a second gear, a drive shaft, a motor, and a pulley assembly. The first gear is fixed on the drive shaft. This invention uses the positioning component to first position the center of the needle cylinder and the upper needle plate, and then relies on the power component to control the movement state of the large cauldron gear and the base gear, so that the upper needle plate and the needle cylinder are in different movement states, causing the knitting needles mounted on their surfaces to abut, thereby completing the alignment adjustment of the needle cylinder and the upper needle plate.

Description

Technical Field

[0001] This invention discloses a needle cylinder alignment adjustment device and method for a double-sided circular knitting machine, belonging to the field of knitting technology. Background Technology

[0002] Circular knitting machines, also known as circular weft knitting machines (or circular weft knitting machines), have seen rapid development due to their numerous loop-forming systems (commonly referred to as yarn feed paths or loop formation paths, or simply paths), high speeds, high output, rapid pattern changes, good fabric quality, fewer processing steps, and strong product adaptability. The core components of a double-sided circular knitting machine include the cylinder and upper needle plate. During high-speed knitting, the needles on the cylinder and upper needle plate are controlled by the cam and jacquard systems. Because of the high knitting speed, the relative positions of the needles on the cylinder and upper needle plate need to be precisely controlled during installation to prevent interference between the vertical needles on the cylinder and the horizontal needles on the upper needle plate. Currently, when installing the cylinder and upper needle plate onto a circular knitting machine, the installation of these components... Due to misalignment, there is a partial eccentricity when aligning the center of the needle cylinder and the upper needle plate, which affects subsequent knitting. Furthermore, during the process of correcting the position of the needle slots on the needle cylinder and the upper needle plate, the relative position of the transmission gears that drive the needle cylinder and the upper needle plate to rotate must also be corrected. Since the number of teeth on the transmission gears is not equal to the number of needle slots, it brings great difficulty to the alignment adjustment of the needle cylinder. Moreover, since the needle cylinder and the upper needle plate are relatively large in size and weight, in actual alignment adjustment, relying on manual or other auxiliary tools to rotate the needle cylinder or the upper needle plate is time-consuming and laborious. At the same time, the alignment adjustment accuracy of the needle cylinder and the upper needle plate cannot be well guaranteed, which may lead to interference in the movement of the knitting needles. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art by providing a syringe alignment adjustment device and alignment adjustment method for a double-sided circular knitting machine.

[0004] This invention achieves the above-mentioned objective through the following technical solution: a syringe alignment adjustment device for a double-sided circular knitting machine, comprising an upper needle plate, a syringe, a large cauldron gear, a large cauldron frame, a base gear, a barrel shaft, a positioning assembly, and a power mechanism. The lower end of the barrel shaft is provided with a needle plate seat, and the upper end of the barrel shaft is fixedly connected to the large cauldron gear. The upper needle plate is fixed on the needle plate seat. The syringe and the base gear are concentrically arranged and fixedly connected by bolts. The large cauldron gear and the base gear have the same number of teeth. The power mechanism includes a first gear, a second gear, and a drive shaft. The motor and pulley assembly includes a first gear fixed on the drive shaft, a pulley assembly connected between the motor and the main shaft, a second gear rotatably mounted on the large cauldron frame, and a drive assembly between the second gear and the drive shaft. When the drive shaft rotates in the forward direction, the drive assembly drives the second gear to rotate synchronously, and when the drive shaft rotates in the reverse direction, the second gear remains stationary. The first gear and the second gear have the same number of teeth. A positioning assembly is installed at the lower end of the barrel shaft and is used to ensure that the centers of the syringe and the upper needle plate are simultaneously located on the axis of the barrel shaft.

[0005] Preferably, the positioning assembly includes a mounting base, a telescopic component, an oil supply pipe, a first valve, and a second valve. The mounting base is fixedly connected to the barrel shaft by bolts. Three sets of telescopic components are provided and symmetrically distributed at 120° on the same horizontal plane. Each telescopic component includes a sleeve, a movable rod, and a first spring. The sleeve is mounted on the mounting base. One end of the movable rod is slidably mounted inside the sleeve, and the other end is located outside the sleeve and has a hemispherical structure. The barrel shaft and the mounting base are provided with an oil supply channel communicating with the sleeve. The oil supply pipe is a T-shaped tee pipe, and one branch of the oil supply pipe is installed on the top of the barrel shaft. The first valve and the second valve are installed on the other two branches of the oil supply pipe. The first valve and the second valve control the oil inlet and outlet of the oil supply channel, respectively.

[0006] Preferably, the drive assembly includes a fixed disk, a drive disk, an annular frame, rollers, a pressing member, a bearing, and a clamping member. One end of the drive shaft has a mounting boss, which is slidably disposed with respect to the fixed disk. The second gear has a circular groove, and the drive disk is rotatably disposed within the circular groove. The drive disk is fixedly connected to the fixed disk by bolts. The annular frame is located between the drive disk and the second gear, and has multiple equally angled cutouts. The rollers are located within the cutouts, and both ends of the rollers are mounted on the drive disk by the pressing member. The drive disk has multiple guide ramps in its middle section, and the distances from the two ends of the guide ramps to the circumferential sidewalls of the circular grooves are unequal. The bearing is located between the second gear and the drive shaft. The clamping member is located above the second gear and increases resistance to the rotation of the second gear.

[0007] Preferably, the pressing component includes a first mounting sleeve, a second mounting sleeve, and a second spring. The first mounting sleeve and the second mounting sleeve are respectively provided with a first protrusion and a second protrusion. One end of the first protrusion and the second protrusion are nested inside and outside. The first mounting sleeve is rotatably mounted on the drive disk. The two ends of the roller pass through the two second mounting sleeves. The second spring is sleeved on the outside of the first protrusion and the second protrusion and applies a force to the roller at the minimum distance position between the guide slope and the circular groove.

[0008] Preferably, the clamping component includes a wear-resistant plate, a movable plate, an adjusting bolt, a limiting bolt, and a third spring. The movable plate is located above the second gear. One end of the limiting bolt passes through the movable plate and is fixedly connected to the wear-resistant plate. The third spring is sleeved on the outside of the limiting bolt and applies a force to the wear-resistant plate against the second gear. The adjusting bolt is threadedly connected to the large cauldron frame, and one end of the adjusting bolt abuts against the movable plate. A first positioning platform is provided in the middle of the fixed plate, and a second positioning platform is provided on the movable plate. The first positioning platform and the second positioning platform are slidably arranged.

[0009] A method for adjusting the syringe alignment of a double-sided circular knitting machine includes the following steps:

[0010] S1: First, install the upper needle plate, the large cauldron gear, the large cauldron frame, the cannon barrel shaft, the positioning assembly and the power mechanism onto the large circular knitting machine. The large cauldron gear and the second gear are meshed. The motor drives the drive shaft to rotate using the pulley assembly. When the motor rotates in the forward direction, the second gear drives the large cauldron gear, the cannon barrel shaft, the needle plate seat and the upper needle plate to rotate synchronously.

[0011] S2: Fix the syringe and the base gear, and keep their centers concentric. Then hoist them onto the large circular knitting machine, so that the syringe and the base gear are below the needle plate seat, but do not fix their positions. At the same time, the base gear and the first gear are not engaged.

[0012] S3: Hydraulic oil is introduced through the positioning component, causing the three movable rods to abut against the inner wall of the base gear, and the center of the syringe and the center of the upper needle plate to be located on the axis of the barrel shaft. Then, the positioning ring of the positioning base gear is installed on the large circular knitting machine. During this process, the motor drives the drive shaft and the first gear to rotate, so as to adjust the relative position of the meshing point of the first gear and the base gear, and finally make the two mesh smoothly.

[0013] S4: The number of needle grooves on the upper needle plate and the needle cylinder are equal, and a horizontal needle and a vertical needle are installed on each. The minimum central angle of the horizontal plane formed by the horizontal needle and the vertical needle is greater than 30°. At the same time, one end of the horizontal needle extends to the outside of the upper needle plate, and the highest point of the vertical needle is higher than the surface of the upper needle plate. Spacers are glued and fixed on both sides of the vertical needle. Then the motor reverses and drives the drive shaft to rotate synchronously. The second gear cannot drive the large cauldron gear to rotate, so the upper needle plate and the horizontal needle remain stationary. The first gear drives the base gear to rotate, so the needle cylinder drives the vertical needle to rotate. Observe the relative position of the vertical needle and the horizontal needle at all times until the spacer on the vertical needle touches the horizontal needle.

[0014] S5: Set up two inspection groups, each containing one vertical needle and two horizontal needles. Install the vertical needle in any needle groove of the needle cylinder, and then install the two horizontal needles in the needle grooves on both sides of the vertical needle on the upper needle plate. After the two horizontal needles are installed, slide them horizontally along the needle grooves. If the vertical needle does not interfere with the sliding of the horizontal needles, the alignment adjustment of the upper needle plate and the needle cylinder can be completed.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By setting up a positioning component, the pressure of the hydraulic oil in the mounting seat is controlled by the first valve and the second valve. The hydraulic oil drives three movable rods to position the base gear and the center of the syringe, so that the center of the upper needle plate and the syringe is located on the axis of the barrel shaft, which prepares for the alignment adjustment of the needle grooves of the two.

[0017] 2. By changing the power structure of the cauldron gear and base gear in the traditional circular knitting machine, the forward rotation of the motor can drive the cauldron gear and base gear to rotate synchronously. When the motor rotates in the reverse direction, the cauldron gear and the upper needle plate remain stationary. The cylinder and base gear rotate under the drive of the drive shaft and the first gear. This changes the relative position of the needle grooves on the cylinder and the upper needle plate, thus ensuring that the vertical and horizontal needles are arranged at intervals. During alignment adjustment, there is no need to manually rotate the cylinder or the upper needle plate. When the vertical and horizontal needles come into contact, the spacer increases the spacing allowance. At the same time, when the motor switches from reverse to forward rotation, the rollers remain in contact with the guide slope and the inner wall of the circular groove under the action of the pressing parts. In this way, the transmission gap between the second gear and the cauldron gear is very small, thus effectively ensuring that the vertical needles are located between two adjacent horizontal needles. There is no interference in the movement of the needles. The alignment adjustment is simple and convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation structure of the syringe alignment adjustment device for a double-sided large circular knitting machine according to the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of a syringe alignment adjustment device for a double-sided large circular knitting machine according to the present invention;

[0020] Figure 3 This is a cross-sectional view of the drive assembly, the second gear, and the drive shaft in this invention;

[0021] Figure 4 This is a schematic diagram of the structure of the drive disk, roller, and second gear in this invention;

[0022] Figure 5 for Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 6 This is a schematic diagram of the pressing component in this invention;

[0024] Figure 7 This is a schematic diagram of the alignment adjustment structure of the syringe and upper needle plate in this invention. Figure 1 ;

[0025] Figure 8 This is a schematic diagram of the alignment adjustment structure of the syringe and upper needle plate in this invention. Figure 2 ;

[0026] Reference numerals: 1. Base gear; 2. Syringe; 3. Upper needle plate; 4. Barrel shaft; 5. Large tripod frame; 6. Large tripod gear; 7. Drive assembly; 8. Second gear; 9. Drive shaft; 10. First gear; 11. Pulley assembly; 12. Motor; 13. Needle plate seat; 14. Mounting base; 15. First spring; 16. Sleeve; 17. Movable rod; 18. First valve; 19. Oil supply pipe; 20. Second valve; 21. Bearing; 22. Mounting boss; 23. Drive plate; 24. 25. Third spring; 26. Second positioning platform; 27. Movable plate; 28. Adjusting bolt; 29. ​​First positioning platform; 30. Limiting bolt; 31. Fixed plate; 32. Ring frame; 33. Circular groove; 34. Guide slope; 35. Hollowed-out; 36. Pressing part; 37. Second mounting sleeve; 38. Second protruding rod; 39. First protruding rod; 40. First mounting sleeve; 41. Second spring; 42. Vertical knitting needle; 43. Spacer; 44. Horizontal knitting needle; 45. Roller; 46. Wear-resistant plate. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1-8As shown, a syringe alignment adjustment device for a double-sided circular knitting machine includes an upper needle plate 3, a syringe 2, a large cauldron gear 6, a large cauldron frame 5, a base gear 1, a barrel shaft 4, a positioning assembly, and a power mechanism. A needle plate seat 13 is provided at the lower end of the barrel shaft 4, and the upper end of the barrel shaft 4 is fixedly connected to the large cauldron gear 6. The upper needle plate 3 is fixed on the needle plate seat 13. The syringe 2 and the base gear 1 are concentrically arranged and fixedly connected by bolts. The large cauldron gear 6 and the base gear 1 have the same number of teeth. The power mechanism includes a first gear 10, a second gear 8, a drive shaft 9, a motor 12, and a pulley assembly 1. 1. The first gear 10 is fixed on the drive shaft 9. The pulley assembly 11 is connected between the motor 12 and the main shaft. The second gear 8 is rotatably mounted on the large cauldron frame 5. A drive assembly 7 is provided between the second gear 8 and the drive shaft 9 so that when the drive shaft 9 rotates in the forward direction, the drive assembly 7 drives the second gear 8 to rotate synchronously. When the drive shaft 9 rotates in the reverse direction, the second gear 8 remains stationary. The first gear 10 and the second gear 8 have the same number of teeth. The positioning assembly is installed at the lower end of the barrel shaft 4. The positioning assembly is used to ensure that the centers of the syringe 2 and the upper needle plate 3 are simultaneously located on the axis of the barrel shaft 4.

[0029] The positioning assembly includes a mounting base 14, a telescopic component, an oil supply pipe 19, a first valve 18, and a second valve 20. The mounting base 14 is fixedly connected to the barrel shaft 4 by bolts. Three sets of telescopic components are provided, symmetrically distributed at 120° intervals on the same horizontal plane. Each telescopic component includes a sleeve 16, a movable rod 17, and a first spring 15. The sleeve 16 is mounted on the mounting base 14. One end of the movable rod 17 is slidably disposed inside the sleeve 16, while the other end is located outside the sleeve 16 and has a hemispherical structure. The barrel shaft 4 and the mounting base 14 are provided with an oil supply channel communicating with the sleeve 16. The oil supply pipe 19 is a T-shaped tee pipe, with one branch of the oil supply pipe 19 installed on the top of the barrel shaft. The first valve 18 and the second valve 20 are installed on the other two branches of the oil supply pipe 19. Valve 18 and valve 20 control the oil inlet and outlet of the oil supply channel, respectively. When positioning the center of the syringe 2 and the upper needle plate 3, first ensure that the distance from one end of the three movable rods 17 to the axis of the barrel shaft 4 is equal when the positioning assembly is installed. Then, open the first valve 18 and close the second valve 20 to allow hydraulic oil to enter the mounting base 14 and push the movable rod 17 to extend beyond the sleeve 16. When one end of the movable rod 17 touches the inner wall of the base gear 1, the center of the syringe 2 and the upper needle plate 3 can be positioned. After positioning, close the first valve 18 and open the second valve 20 so that the elastic force applied by the first spring 15 to the movable rod 17 retracts the movable rod 17 into the sleeve 16, so that the movable rod 17 does not affect the weaving of the fabric.

[0030] The drive assembly 7 includes a fixed disk 30, a drive disk 23, an annular frame 31, rollers 44, abutting members 35, bearings 21, and clamping members. One end of the drive shaft 9 has a mounting boss 22, which is slidably disposed with respect to the fixed disk 30. The second gear 8 has a circular groove 32, and the drive disk 23 is rotatably disposed within the circular groove 32. The drive disk 23 is fixedly connected to the fixed disk 30 by bolts. The annular frame 31 is located between the drive disk 23 and the second gear 8, and has multiple equally angled perforations 34. The rollers 44 are located within the perforations 34, and both ends of the rollers 44 are mounted on the drive disk 23 by the abutting members 35. Multiple guide ramps 33 are provided in the middle of the drive disk 23. The distances from the two ends of the guide ramps 33 to the circumferential sidewalls of the circular grooves 32 are not equal. The bearing 21 is located between the second gear 8 and the drive shaft 9. The clamping member is located above the second gear 8 and increases the resistance to the rotation of the second gear 8. When the motor 12 drives the drive shaft 9 to rotate, the drive shaft 9 drives the fixed disk 30 and the drive disk 23 to rotate. Since the ring frame 31 is located outside the drive disk 23, the pressing member 35 allows the rollers 44 to abut against the circular grooves 32 and the guide ramps 33, which is equivalent to the rollers 44 being in a clamped state. This allows the rollers 44 to pass through when the drive disk 23 rotates in the forward direction. The second gear 8 rotates, which in turn drives the large cauldron gear 6, thus keeping the upper needle plate 3 rotating synchronously. However, when the motor 12 drives the drive shaft 9 to rotate in reverse, a certain relative position is created between the drive plate 23 and the roller 44. When the guide slope 33 contacts the roller 44, the roller 44 cannot be tightly pressed against the inner wall of the circular groove 32. Therefore, even as the roller 44 and the ring frame 31 rotate synchronously with the drive plate 23, the roller 44 cannot be firmly locked between the circular groove 32 and the guide slope 33. As a result, when the drive plate 23 rotates in reverse, the roller 44 is in a slipping state, and the drive plate 23 cannot transmit power. The second gear 8 is transmitted through the roller 44, so that the upper needle plate 3 can remain stationary when the needle cylinder 2 rotates, thereby allowing for alignment adjustment of the needle cylinder 2 and the upper needle plate 3. When the drive disc 23 switches from reverse rotation to forward rotation, the roller 44 remains in contact with the circular groove 32 and the guide slope 33 under the pressure. Thus, when the drive disc 23 transmits power to the second gear 8 through the roller 44, the relative displacement between the drive disc 23 and the second gear 8 is very small. This will not affect the alignment adjustment of the needle cylinder 2 and the upper needle plate 3, but will instead provide appropriate adjustment and compensation for the gap between the vertical needle 41 and the two adjacent horizontal needles 43.

[0031] The pressing component 35 includes a first mounting sleeve 39, a second mounting sleeve 36, and a second spring 40. The first mounting sleeve 39 and the second mounting sleeve 36 are respectively provided with a first protrusion 38 and a second protrusion 37. One end of the first protrusion 38 and the second protrusion 37 are nested inside and outside. The first mounting sleeve 39 is rotatably mounted on the drive disk 23. The two ends of the roller 44 pass through the two second mounting sleeves 36. The second spring 40 is sleeved on the outside of the first protrusion 38 and the second protrusion 37 and applies a force to the roller 44 at the minimum distance position between the guide slope 33 and the circular groove 32. After installation, the second spring 40 applies a force to the roller 44 that does not pass through the center direction of the drive disk 23, so that the roller 44 always keeps in contact with the circular groove 32 and the guide slope 33.

[0032] The clamping components include a wear-resistant plate 45, a movable plate 26, an adjusting bolt 27, a limiting bolt 29, and a third spring 24. The movable plate 26 is located above the second gear 8. One end of the limiting bolt 29 passes through the movable plate 26 and is fixedly connected to the wear-resistant plate 45. The third spring 24 is sleeved on the outside of the limiting bolt 29 and applies a force to the wear-resistant plate 45 against the second gear 8. The adjusting bolt 27 is threadedly connected to the large tripod frame 5, and one end of the adjusting bolt 27 abuts against the movable plate 26. A first positioning platform 28 is provided in the middle of the fixed plate 30, and a second positioning platform is provided on the movable plate 26. The first positioning platform 25, the first positioning platform 28, and the second positioning platform 25 are slidably set. By rotating the adjusting bolt 27, the height of the movable plate 26 changes. The up and down movement of the movable plate 26 is guided by the first positioning platform 28 and the second positioning platform 25. This changes the elastic force of the third spring 24. When the second gear 8 rotates, the elastic force of the third spring 24 on the wear-resistant plate 45 is converted into resistance. When the motor 12 drives the drive shaft 9 to reverse, the power transmitted by the roller 44 is insufficient to drive the second gear 8 to rotate. Thus, the syringe 2 and the upper needle plate 3 can be smoothly aligned and adjusted.

[0033] A method for adjusting the syringe alignment of a double-sided circular knitting machine includes the following steps:

[0034] S1: First, install the upper needle plate 3, the large cauldron gear 6, the large cauldron frame 5, the cannon barrel shaft 4, the positioning assembly and the power mechanism onto the large circular knitting machine. The large cauldron gear 6 and the second gear 8 are meshed. The motor 12 drives the drive shaft 9 to rotate using the pulley assembly 11. When the motor 12 rotates in the forward direction, it drives the large cauldron gear 6, the cannon barrel shaft 4, the needle plate seat 13 and the upper needle plate 3 to rotate synchronously using the second gear 8.

[0035] S2: Fix the syringe 2 and the base gear 1, and keep their centers concentric. Then hoist them onto the large circular knitting machine, so that the syringe 2 and the base gear 1 are located below the needle plate seat 13, but do not fix their positions. At the same time, the base gear 1 and the first gear 10 are not meshed.

[0036] S3: Hydraulic oil is introduced through the positioning component, so that the three movable rods 17 abut against the inner wall of the base gear 1, and the center of the syringe 2 and the center of the upper needle plate 3 are located on the axis of the barrel shaft 4. Then, the positioning ring of the positioning base gear 1 is installed on the large circular knitting machine. During this process, the motor 12 drives the drive shaft 9 and the first gear 10 to rotate, so as to adjust the relative position of the meshing point of the first gear 10 and the base gear 1, and finally make the two mesh smoothly.

[0037] S4: The number of needle slots on the upper needle plate 3 and the needle cylinder 2 are equal, and a horizontal needle 43 and a vertical needle 41 are installed on each of them respectively, so that the minimum central angle of the horizontal plane formed by the horizontal needle 43 and the vertical needle 41 is greater than 30°. At the same time, one end of the horizontal needle 43 extends to the outside of the upper needle plate 3, and the highest point of the vertical needle 41 is higher than the surface of the upper needle plate 3. Spacers 42 are glued and fixed on both sides of the vertical needle 41. Then the motor 12 reverses and drives the drive shaft 9 to rotate synchronously, so that the second gear 8 cannot drive the large cauldron gear 6 to rotate. The upper needle plate 3 and the horizontal needle 43 remain stationary. The first gear 10 drives the base gear 1 to rotate, so that the needle cylinder 2 drives the vertical needle 41 to rotate. The relative position of the vertical needle 41 and the horizontal needle 43 is constantly observed until the spacer 42 on the vertical needle 41 touches the horizontal needle 43.

[0038] S5: Set up two inspection groups, each containing one vertical needle 41 and two horizontal needles 43. Install the vertical needle 41 in any needle groove of the needle cylinder 2, and then install the two horizontal needles 43 in the needle grooves on both sides of the upper needle plate 3 corresponding to the vertical needle 41. After the two horizontal needles 43 are installed, slide them horizontally along the needle grooves. If the vertical needle 41 does not interfere with the sliding of the horizontal needles 43, the alignment adjustment of the upper needle plate 3 and the needle cylinder 2 can be completed.

[0039] In this embodiment, the gap between two adjacent needle grooves of the needle cylinder 2 and the upper needle plate 3 is greater than the thickness of the knitting needle. After assembly, there is a certain gap between the vertical knitting needle 41 and the two adjacent horizontal knitting needles 43. Therefore, during the alignment adjustment of the needle cylinder 2 and the upper needle plate 3, spacer plates 42 are bonded to both sides of the vertical knitting needle 41. The thickness of the spacer plates 42 is less than the gap. When the motor 12 drives the drive shaft 9 and the first gear 10 to rotate in opposite directions, due to the force applied to the second gear 8 by the clamping member and the reverse rotation of the drive shaft 9, when the drive shaft 9 drives the fixed plate 30 and the drive plate 23 to rotate synchronously, relative movement occurs between the guide inclined surface 33 and the roller 44. The roller 44 and the circular groove 32 and the guide inclined surface 33... The change in the contact position causes the power of the drive disc 23 to be unable to be transmitted to the second gear 8 through the roller 44, or the power transmitted by the roller 44 is insufficient to drive the second gear 8 to rotate. In this way, the first gear 10 can drive the base gear 1 to rotate, while the large cauldron gear 6 remains stationary. Thus, the needle cylinder 2 can drive the vertical knitting needle 41 to rotate, while the upper needle plate 3 and the horizontal knitting needle 43 remain stationary. The motor 12 drives the drive shaft 9 to rotate slowly until the spacer 42 touches the horizontal knitting needle 43. After the alignment adjustment is completed, due to the force exerted by the pressing member 35 on the roller 44, the roller 44 is in a state of contact with the guide slope 33 and the inner wall of the circular groove 32. When the drive shaft 9 drives the drive disc 23 to rotate forward, the drive disc... Only a small displacement between drive disc 23 and second gear 8 is needed to allow drive disc 23 to transmit power from drive shaft 9 to second gear 8 via roller 44, and simultaneously rotate large cauldron gear 6 and base gear 1. During this process, it is equivalent to appropriately adjusting and compensating for the gap between vertical needle 41 and one side of horizontal needle 43. For example, if the gap between two adjacent needle slots on needle cylinder 2 and upper needle plate 3 is 0.5mm, and the needle thickness is 0.3mm, then the centered clearance between vertical needle 41 and two adjacent horizontal needles 43 is 0.1mm. During alignment adjustment, the spacer 42 bonded to vertical needle 41 has a thickness of 0.02mm. Therefore, when spacer 42 abuts against one of the horizontal needles 43... At this time, the gaps between the vertical knitting needle 41 and the horizontal knitting needles 43 on both sides are 0.02mm and 0.08mm respectively. When the motor 12 drives the drive shaft 9 to rotate forward, the first gear 10 and the large gear 6 are immediately driven. However, since there is a certain relative displacement between the drive disk 23 and the second gear 8, the displacement is very small. Therefore, the rotation of the second gear 8 is slightly delayed, so that the vertical knitting needle 41 rotates relative to the horizontal knitting needles 43 first. In this way, the gaps on both sides of the vertical knitting needle 41 can be adjusted and compensated, so that the movement gap between the vertical knitting needle 41 and the two horizontal knitting needles 43 is kept as equal as possible. This ensures that there is no interference between the two during the knitting process. The alignment adjustment device and method of this invention are simple and convenient to operate.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A syringe alignment adjustment device for a double-sided circular knitting machine, comprising an upper needle plate (3), a syringe (2), a large cauldron gear (6), a large cauldron frame (5), a base gear (1), a barrel shaft (4), a positioning assembly, and a power mechanism, characterized in that, The lower end of the barrel shaft (4) is provided with a needle plate seat (13), and the upper end of the barrel shaft (4) is fixedly connected to the large cauldron gear (6). The upper needle plate (3) is fixed on the needle plate seat (13). The syringe (2) and the base gear (1) are concentrically arranged and fixedly connected by bolts. The large cauldron gear (6) and the base gear (1) have the same number of teeth. The power mechanism includes a first gear (10), a second gear (8), a drive shaft (9), a motor (12), and a pulley assembly (11). The first gear (10) is fixed on the drive shaft (9). The pulley assembly (11) is connected between the motor (12) and the main shaft. The second gear (8) is rotatably mounted on the large cauldron frame (5), and the second gear (8) is fixed to the drive shaft (9). A drive assembly (7) is provided between the shafts (9) so that when the drive shaft (9) rotates in the forward direction, the drive assembly (7) drives the second gear (8) to rotate synchronously, and when the drive shaft (9) rotates in the reverse direction, the second gear (8) remains stationary. The first gear (10) and the second gear (8) have the same number of teeth. The positioning assembly is installed at the lower end of the barrel shaft (4) and is used to ensure that the centers of the syringe (2) and the upper needle plate (3) are simultaneously located on the axis of the barrel shaft (4). The positioning assembly includes a mounting base (14), a telescopic component, an oil supply pipe (19), a first valve (18), and a second valve (20). The mounting base (14) is fixedly connected to the barrel shaft (4) by bolts. Three sets of telescopic components are provided and are positioned in the same water... The telescopic components are symmetrically distributed in a 120° plane. The telescopic components include a sleeve (16), a movable rod (17), and a first spring (15). The sleeve (16) is mounted on the mounting base (14). One end of the movable rod (17) is slidably mounted inside the sleeve (16), and the other end is located outside the sleeve (16) and has a hemispherical structure. The barrel shaft (4) and the mounting base (14) are provided with an oil supply channel communicating with the sleeve (16). The oil supply pipe (19) is a T-shaped three-way pipe, and one branch of the oil supply pipe (19) is installed on the top of the barrel shaft (4). The first valve (18) and the second valve (20) are installed on the other two branches of the oil supply pipe (19). 0) Control the oil inlet and outlet of the oil supply channel respectively. The drive assembly (7) includes a fixed plate (30), a drive plate (23), an annular frame (31), rollers (44), a pressing part (35), a bearing (21), and a clamping part. One end of the drive shaft (9) has a mounting boss (22). The mounting boss (22) is slidably disposed with the fixed plate (30). The second gear (8) is provided with a circular groove (32). The drive plate (23) is rotatably disposed in the circular groove (32). The drive plate (23) is fixedly connected to the fixed plate (30) by a bolt. The annular frame (31) is located between the drive plate (23) and the second gear (8). The annular frame (31) has multiple equally angled hollows (34).The roller (44) is located inside the hollow (34), and both ends of the roller (44) are mounted on the drive disk (23) via pressing members (35). The drive disk (23) has multiple guide ramps (33) in its middle section. The distances from both ends of the guide ramps (33) to the circumferential sidewall of the circular groove (32) are unequal. The bearing (21) is located between the second gear (8) and the drive shaft (9). The pressing member is located above the second gear (8) and increases resistance to the rotation of the second gear (8).

2. The syringe alignment adjustment device for a double-sided large circular knitting machine according to claim 1, characterized in that, The pressing component (35) includes a first mounting sleeve (39), a second mounting sleeve (36), and a second spring (40). The first mounting sleeve (39) and the second mounting sleeve (36) are respectively provided with a first protrusion (38) and a second protrusion (37). One end of the first protrusion (38) and the second protrusion (37) are nested inside and outside. The first mounting sleeve (39) is rotatably mounted on the drive disk (23). The two ends of the roller (44) pass through the two second mounting sleeves (36). The second spring (40) is sleeved on the outside of the first protrusion (38) and the second protrusion (37) and applies a force to the roller (44) at the minimum distance position between the guide slope (33) and the circular groove (32).

3. The syringe alignment adjustment device for a double-sided large circular knitting machine according to claim 2, characterized in that, The clamping components include a wear-resistant plate (45), a movable plate (26), an adjusting bolt (27), a limiting bolt (29), and a third spring (24). The movable plate (26) is located above the second gear (8). One end of the limiting bolt (29) passes through the movable plate (26) and is fixedly connected to the wear-resistant plate (45). The third spring (24) is sleeved on the outside of the limiting bolt (29) and applies a force to the wear-resistant plate (45) against the second gear (8). The adjusting bolt (27) is threadedly connected to the large tripod frame (5), and one end of the adjusting bolt (27) abuts against the movable plate (26). A first positioning platform (28) is provided in the middle of the fixed plate (30), and a second positioning platform (25) is provided on the movable plate (26). The first positioning platform (28) and the second positioning platform (25) are slidably arranged.

4. A method for adjusting the syringe alignment of a double-sided circular knitting machine, employing the syringe alignment adjustment device as described in claim 3, characterized in that, Includes the following steps: S1: First, install the upper needle plate (3), the large cauldron gear (6), the large cauldron frame (5), the cannon barrel shaft (4), the positioning assembly and the power mechanism onto the large circular knitting machine. The large cauldron gear (6) and the second gear (8) are meshed. The motor (12) drives the drive shaft (9) to rotate using the pulley assembly (11). When the motor (12) rotates in the forward direction, it relies on the second gear (8) to drive the large cauldron gear (6), the cannon barrel shaft (4), the needle plate seat (13) and the upper needle plate (3) to rotate synchronously. S2: Fix the syringe (2) and the base gear (1) and keep their centers concentric. Then hoist them onto the large circular knitting machine so that the syringe (2) and the base gear (1) are located below the needle plate seat (13), but do not fix their positions. At the same time, the base gear (1) and the first gear (10) are not meshed. S3: Hydraulic oil is introduced through the positioning component, so that the three movable rods (17) abut against the inner wall of the base gear (1), and the center of the syringe (2) and the center of the upper needle plate (3) are located on the axis of the barrel shaft (4). Then the positioning ring of the positioning base gear (1) is installed on the large circular machine. During this process, the motor (12) drives the drive shaft (9) and the first gear (10) to rotate, so as to adjust the relative position of the meshing point of the first gear (10) and the base gear (1), and make the two mesh smoothly in the end. S4: The number of needle grooves on the upper needle plate (3) and the needle cylinder (2) are equal, and each is equipped with a horizontal needle (43) and a vertical needle (41), respectively, so that the minimum central angle of the horizontal plane formed by the horizontal needle (43) and the vertical needle (41) is greater than 30°. At the same time, one end of the horizontal needle (43) extends to the outside of the upper needle plate (3), and the highest point of the vertical needle (41) is higher than the surface of the upper needle plate (3). Spacers (42) are glued and fixed on both sides of the vertical needle (41). The rear motor (12) reverses and drives the drive shaft (9) to rotate synchronously. The second gear (8) cannot drive the large cauldron gear (6) to rotate, so that the upper needle plate (3) and the horizontal knitting needle (43) remain stationary. The first gear (10) drives the base gear (1) to rotate, so that the needle cylinder (2) drives the vertical knitting needle (41) to rotate. Observe the relative position of the vertical knitting needle (41) and the horizontal knitting needle (43) at all times until the spacer (42) on the vertical knitting needle (41) touches the horizontal knitting needle (43). S5: Set up two inspection groups, each inspection group includes one vertical needle (41) and two horizontal needles (43). Install the vertical needle (41) in any needle groove of the needle cylinder (2), and then install the two horizontal needles (43) in the needle grooves on both sides of the upper needle plate (3) corresponding to the vertical needle (41). After the two horizontal needles (43) are installed, slide horizontally along the needle groove. If the vertical needle (41) does not interfere with the sliding of the horizontal needles (43), the alignment adjustment of the upper needle plate (3) and the needle cylinder (2) can be completed.

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