Swing and lift mechanism for hosiery machines

Abstract

The utility model provides a swing lifting mechanism of hosiery machine belongs to textile equipment technical field. It solved the prior art structure complex, occupies the space big, adjusts the technical problem such as poor flexibility. Swing lifting mechanism of this hosiery machine is equipped with stand column rotation drive assembly between base and stand column, is equipped with lifting sleeve on stand column, is equipped with threaded spindle lifting assembly, is fixed with guide seat on stand column, is equipped with lifting guide rod with stand column interparallelism on it, is fixed with upper swing arm seat on lifting sleeve, still is equipped with the lower swing arm seat of the rotation and lifting of relative it and the below of upper swing arm seat on lifting sleeve, is equipped with lower swing arm support seat below lower swing arm support seat, is equipped with lifting sleeve on lower swing arm support seat, and is equipped with the lower swing arm lifting drive assembly for driving lower swing arm support seat lifting between lifting guide rod, still is equipped with auxiliary synchronization assembly between upper swing arm seat and lower swing arm seat. The utility model has the advantages such as structure simplification, high production efficiency, strong stability.

Description

Technical Field

[0001] This utility model belongs to the field of textile equipment technology, and in particular relates to a swing lifting mechanism for a sock machine. Background Technology

[0002] As an important piece of equipment in the textile industry, one of the core functions of sock knitting machines is to automate the knitting and transfer of socks. During production, a swing-lifting mechanism is often used to transfer, align, and raise / lower the sock cuffs. Traditional swing-lifting mechanisms mostly use a single-axis structure, which suffers from problems such as complex structure, large space occupation, poor adjustment flexibility, low transmission accuracy, and inconvenient maintenance.

[0003] In existing technologies, swing lifting mechanisms typically employ fixed swing arms or simple lifting structures, making it difficult to achieve independent control and coordinated operation of the upper and lower swing arms. This results in insufficient adaptability of sock machines to meet different process requirements. Furthermore, the lifting guide in traditional mechanisms suffers from poor stability, easily leading to swaying or deviation, which affects the molding quality and production efficiency of socks. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a swing lifting mechanism for a sock machine with better processing quality and stability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The swing lifting mechanism of this sock machine includes a base and a column. A column rotation drive assembly is provided between the base and the column. A lifting sleeve is fitted on the column, and a first threaded screw lifting assembly is provided between the lifting sleeve and the column. A guide seat located on one side is fixed on the column. A lifting guide rod parallel to the column passes through the guide seat. The lifting guide rod is fixedly connected to the lifting sleeve. An upper swing arm seat is fixed on the lifting sleeve. The lifting sleeve is also fitted with a lower swing arm seat that can rotate and rise relative to it and is located below the upper swing arm seat. A lower swing arm support seat is provided below the lower swing arm seat. The lower swing arm support seat is fitted on the lifting sleeve, and a lower swing arm lifting drive assembly for driving the lower swing arm support seat to rise and fall is provided between it and the lifting guide rod. An auxiliary synchronization component is also provided between the upper swing arm seat and the lower swing arm seat.

[0006] By fixing an upper swing arm seat to the lifting sleeve and then fitting a lower swing arm seat that can rotate and rise relative to it, the lifting and lowering of the upper swing arm seat can be controlled independently, and the lower swing arm lifting drive assembly can independently control the lower swing arm seat. This improves equipment stability. Furthermore, the addition of an auxiliary synchronization component allows the upper and lower swing arm seats to be linked or separated, further enhancing control flexibility and improving equipment production efficiency.

[0007] In the aforementioned swing lifting mechanism of the sock machine, the lower swing arm lifting drive assembly includes a linear drive unit. The drive end of the linear drive unit is disposed within the upper and lower sliding holes of the lifting guide rod and can move axially along it. The lifting guide rod passes axially through the upper and lower sliding holes. The drive end of the linear drive unit is connected to the lower swing arm support seat via a pin structure, which transmits the axial movement of the drive end of the linear drive unit to the lower swing arm support seat and drives its lifting. The axial linear movement of the drive unit is directly converted into the lifting movement of the lower swing arm support seat through a rigid connecting rod, resulting in a short transmission chain, low power loss, and fast response speed. This facilitates precise position control of the lower swing arm.

[0008] In the aforementioned swing lifting mechanism of the sock machine, the pin structure includes N radial pins distributed circumferentially, where N≥1. The lifting guide rod has axial slots that allow radial communication between the guide rod shaft hole and the outside, and the number of axial slots is equal to the number of radial pins. The radial pins pass through these axial slots in a one-to-one correspondence. The inner and outer ends of the radial pins are connected to the drive end of the linear drive unit and the lower swing arm support, respectively. The circumferential distribution of the radial pins ensures more even force distribution on the lower swing arm support, effectively preventing deformation or wear caused by excessive force at a single point, and improving the rigidity and stability of the overall structure.

[0009] In the swing lifting mechanism of the sock machine described above, the linear drive unit includes a second driver fixed to the top of the lifting guide rod. The second driver is connected to a second nut via a second screw, and the second nut is fixed to the inner end of a radial pin. A second auxiliary lifting spring is provided between the second nut and the bottom of the lifting guide rod. The second driver works with the second screw and the second nut to achieve high transmission accuracy and precise positioning, which is suitable for the precision lifting control required by the lower swing arm. The screw and nut structure has self-locking properties, which can effectively maintain the position of the lower swing arm in the non-drive state, preventing accidental falling due to external forces or vibrations and improving the stability of the equipment.

[0010] In the aforementioned swing lifting mechanism of the sock machine, a first wear-resistant sleeve is provided between the lower swing arm support and the lifting guide rod. The first wear-resistant sleeve is connected to the lower swing arm support and lifts synchronously. Several first spiral oil grooves are provided between the first wear-resistant sleeve and the lifting guide rod, and the radial pin passes through the first wear-resistant sleeve. The first wear-resistant sleeve, introduced between the lower swing arm support and the lifting guide rod, directly bears the friction and wear, extending the service life of the core component. The first spiral oil grooves are formed on the contact surface between the wear-resistant sleeve and the guide rod. The spiral grooves can store lubricating grease, ensuring that an oil film is always present on the contact surface, continuously reducing the coefficient of friction. During relative motion, the spiral grooves generate a conveying effect, evenly distributing and circulating the grease on the contact surface, avoiding localized dry friction, and achieving automatic lubrication.

[0011] In the swing lifting mechanism of the above-mentioned sock machine, a second wear-resistant sleeve is provided between the lower swing arm support seat and the lower swing arm seat and the lifting sleeve. The second wear-resistant sleeve is fixed to the lower swing arm support seat, and a plurality of second spiral oil grooves are provided between the second wear-resistant sleeve and the lifting sleeve. And / or, several third spiral oil grooves are provided between the column and the lifting sleeve. The wear-resistant sleeve can be replaced independently after wear, eliminating the need to scrap or repair large core components, thus reducing long-term maintenance costs and downtime. The self-lubricating ability of the spiral oil grooves reduces reliance on frequent manual lubrication, lowers maintenance intensity, and avoids malfunctions caused by untimely lubrication, thereby improving equipment reliability.

[0012] In the aforementioned swing lifting mechanism of the sock machine, the first threaded screw lifting assembly includes a central hole axially passing through a column. A first nut, detachably fixed to the column, is located at the upper end of the central hole. A first screw is screwed into the first nut, and its upper end is connected to a first rotary driver. The first rotary driver is connected to a lifting sleeve via a first driver seat. A first auxiliary lifting spring is located between the bottom of the central hole and the first screw. Integrating the first nut, first screw, and first auxiliary lifting spring all within the central hole of the column achieves an integrated design where the column is also the housing. This concealed layout saves external space, making the overall structure extremely compact and avoiding the interference risks associated with complex external transmission chains.

[0013] In the swing lifting mechanism of the sock machine described above, the lifting guide rod is connected and fixed to the upper end of the lifting sleeve through a connecting seat; The lifting guide rod passes through the upper swing arm seat; The guide seat is fixed to the column via a flange structure. The guide seat has at least two rolling elements evenly distributed circumferentially within its guide hole. The flange structure provides a large, uniform fastening surface, firmly locking the guide seat to the column and ensuring its immovable position, thus providing a stable guiding reference for the lifting rod. Ensuring the parallelism between the guide hole of the guide seat and the axis of the column guarantees the accuracy of the lifting movement.

[0014] In the swing lifting mechanism of the sock machine described above, the column rotation drive mechanism includes a column rotation driver mounted on the base. The column is rotatably connected to the column mounting hole of the base, and a worm gear is fixed in the column mounting hole. The output end of the column rotation driver is connected to the worm gear through a worm. The upper and lower ends of the column mounting hole are rotatably connected to the column through an upper rolling bearing and a lower rolling bearing, respectively. A clearance adjustment assembly is provided between the worm and the worm wheel. The clearance adjustment assembly includes a worm housing, a column rotary actuator fixed to one end of the worm housing, the worm being disposed inside the worm housing, a side hole being provided on the side wall of the support, the worm housing at least partially entering the side hole and having a contour that matches the side hole, and an arc-shaped slot being provided on the worm housing located inside the side hole for the worm and the worm wheel to be connected for transmission. Both ends of the worm housing are fixed to the support by radial adjustment bolts. The worm gear housing and the base are fixed together by fastening bolts, which are clearance-fitted with the fastening bolt holes on the worm gear housing and / or the base. The worm gear structure allows for a large reduction ratio, enabling the output of sufficiently large torque to drive the heavily loaded column and all its components to rotate smoothly, resulting in a compact and efficient structure.

[0015] In the aforementioned swing lifting mechanism of the sock machine, the auxiliary synchronization component includes a clutch pin mounted on the upper swing arm seat. The clutch pin is parallel to the lifting guide rod and the lifting sleeve. The lower swing arm seat has a clutch hole that mates with the clutch pin. When the upper swing arm seat rises, the clutch pin is pulled out of the clutch hole, and the mechanical connection between the upper and lower swing arm seats is released. At this time, the lower swing arm seat can rise and fall independently while simultaneously rotating independently relative to it.

[0016] Compared with existing technologies, the advantages of the swing lifting mechanism of this sock machine are: 1. Compact integrated structure, built-in drive design, simplified overall structure, and high space utilization. 2. The upper and lower swing arms can be driven independently, with strong process adaptability and high production efficiency. 3. It has a lubrication and wear-resistant design, ensuring high-precision guidance while improving equipment stability and product quality. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram provided by this utility model.

[0018] Figure 2 This is a side view of the structure provided by this utility model.

[0019] Figure 3 This utility model provides Figure 2 Schematic diagram of the cross-sectional structure at point AA.

[0020] Figure 4 This is a schematic diagram of the guide seat structure provided by this utility model.

[0021] Figure 5 This is a schematic diagram of the internal structure of the column rotation drive assembly provided by this utility model.

[0022] In the diagram, the components are: base 1, column mounting hole 11, upper rolling bearing 12, lower rolling bearing 13, stand 14, side hole 141, second connecting ear 142, column 2, guide seat 21, guide hole 211, rolling element 212, lifting guide rod 22, lifting guide rod upper and lower sliding hole 221, axial strip hole 222, third spiral oil groove 23, column rotation drive assembly 3, column rotation actuator 31, worm gear 32, worm 33, clearance adjustment assembly 34, worm housing 341, arc groove 342, first connecting ear 343, fastening bolt hole 35, lifting sleeve 4, upper swing arm seat 41, lower swing arm seat 42, lower swing arm support seat 43, first wear-resistant sleeve 431, first spiral oil groove 432. Second wear-resistant sleeve 433, second spiral oil groove 434, concave step 435, auxiliary synchronization component 44, clutch column 441, clutch hole 442, connecting seat 45, first threaded screw lifting component 5, center hole 51, first nut 52, first screw 53, first rolling bearing 531, first rotary driver 54, first driver seat 55, first auxiliary lifting spring 56, plane bearing 561, second plug 562, lower swing arm lifting drive component 6, linear drive unit 61, pin structure 62, radial pin 621, second driver 63, second driver seat 631, second screw 64, second rolling bearing 641, second nut 65, second auxiliary lifting spring 66, plug 661. Detailed Implementation

[0023] like Figures 1 to 5 As shown, the swing lifting mechanism of this sock machine includes a base 1 and a column 2. A column rotation drive assembly 3 is provided between the base 1 and the column 2. A lifting sleeve 4 is fitted on the column 2, and a first threaded screw lifting assembly 5 is provided between the lifting sleeve 4 and the column 2. A guide seat 21 located on one side is fixed on the column 2. A lifting guide rod 22 parallel to the column 2 passes through the guide seat 21. The lifting guide rod 22 is fixedly connected to the lifting sleeve 4. An upper swing arm seat 41 is fixed on the lifting sleeve 4. The lifting sleeve 4 is also fitted with a lower swing arm seat 42 that can rotate and lift relative to it and is located below the upper swing arm seat 41. A lower swing arm support seat 43 is provided below the lower swing arm seat 42. The lower swing arm support seat 43 is fitted on the lifting sleeve 4, and a lower swing arm lifting drive assembly 6 for driving the lower swing arm support seat 42 to lift is provided between it and the lifting guide rod 22. An auxiliary synchronization component 44 is also provided between the upper swing arm seat 41 and the lower swing arm seat 42.

[0024] In this embodiment, the column rotation drive assembly 3 drives the column 2, thereby causing the entire swing arm system fixed on it to rotate relative to the base 1, achieving overall rotation. The lifting sleeve 4 is driven to rise and fall along the column 2 by the first threaded screw lifting assembly 5. The lifting sleeve 4 is fixed to the lifting guide rod 22 through the connecting seat and moves smoothly under the guidance of the guide seat 21. The upper swing arm seat 41 is fixed to the lifting sleeve 4, achieving overall synchronous lifting and lowering.

[0025] Both the lower swing arm seat 42 and the lower swing arm support seat 43 are fitted onto the lifting sleeve 4 and can slide relative to it. The driving end of the lower swing arm lifting drive assembly 6 moves linearly inside the lifting guide rod 22 and transmits power to the lower swing arm support seat 43 through a radial pin, driving its lifting and lowering. The lower swing arm seat 42 relies on the lower swing arm support seat 43, thereby achieving lifting and lowering movements independent of the upper swing arm seat 41. In the state where the auxiliary synchronization assembly 44 is separated, the lower swing arm seat 42 can rotate relative to the lifting sleeve 4, thereby achieving different spatial postures.

[0026] More specifically, the lower swing arm lifting drive assembly 6 includes a linear drive unit 61. The drive end of the linear drive unit 61 is disposed in the upper and lower sliding hole 221 of the lifting guide rod 22 and can move along its axial direction. The upper and lower sliding hole 221 of the lifting guide rod 22 passes through the lifting guide rod 22 axially. The drive end of the linear drive unit 61 is connected to the lower swing arm support 43 through a pin structure 62, which is used to transmit the axial movement of the drive end of the linear drive unit 61 to the lower swing arm support 43 and drive its lifting.

[0027] More specifically, the pin structure 62 includes two radial pins 621 distributed circumferentially. The lifting guide rod 22 has axial slots 222 that allow the lifting guide rod to slide up and down in a radial direction to communicate with the outside and are equal in number to the radial pins 621. The radial pins 621 pass through the axial slots 222 and correspond one-to-one. The inner end and outer end of the radial pins 621 are connected to the driving end of the linear drive unit 61 and the lower swing arm support 43, respectively.

[0028] More specifically, the linear drive unit 61 includes a second driver 63 fixed to the top of the lifting guide rod 22. The second driver 63 is connected to a second nut 65 via a second screw 64. The second nut 65 is fixed to the inner end of the radial pin 621. A second auxiliary lifting spring 66 is provided between the second nut 65 and the bottom of the lifting guide rod 22.

[0029] In this embodiment, the lower end of the second auxiliary lifting spring 66 abuts against the plug 661 at the lower end of the sliding hole 221 of the lifting guide rod, and the upper end abuts against the second nut 65.

[0030] More specifically, a first wear-resistant sleeve 431 is provided between the lower swing arm support 43 and the lifting guide rod 22. The first wear-resistant sleeve 431 is connected to the lower swing arm support 43 and lifts and lowers synchronously. Several first spiral oil grooves 432 are provided between the first wear-resistant sleeve 431 and the lifting guide rod 22. The radial pin 621 passes through the first wear-resistant sleeve 431.

[0031] More specifically, a second wear-resistant sleeve 433 is provided between the lower swing arm support 43 and the lower swing arm seat 42 and the lifting sleeve 4. The second wear-resistant sleeve 433 is fixed to the lower swing arm support 43. A plurality of second spiral oil grooves 434 are provided between the second wear-resistant sleeve 433 and the lifting sleeve 4. Furthermore, several third spiral oil grooves 23 are provided between the column 2 and the lifting sleeve 4.

[0032] In this embodiment, the lower swing arm support 43 is provided with a recessed step 435 on one side of the lifting sleeve 4, and the lower swing arm seat 42 is disposed on the recessed step 435.

[0033] More specifically, the first threaded screw lifting assembly 5 includes a central hole 51 axially passing through the column 2. The upper end of the central hole 51 is provided with a first nut 52 that is detachably fixed to the column 2. A first screw 53 is screwed into the first nut 52. The upper end of the first screw 53 is connected to a first rotary driver 54. The first rotary driver 54 is connected to the lifting sleeve 4 through a first driver seat 55. A first auxiliary lifting spring 56 is provided between the bottom of the central hole 51 and the first screw 53.

[0034] In this embodiment, the upper end of the first auxiliary lifting spring 56 is connected to the bottom of the first screw 53 through a plane bearing 561, and the lower end abuts against the second plug 562 at the lower end of the central hole 51.

[0035] like Figure 3 and 4 As shown, the lifting guide rod 22 is connected and fixed to the upper end of the lifting sleeve 4 via a connecting seat 45; The lifting guide rod 22 passes through the upper swing arm seat 41; The guide seat 21 is fixed to the column 2 by a flange structure, and at least two rolling elements 212 are provided in the guide hole 211 of the guide seat 21.

[0036] In this embodiment, a first rolling bearing 531 is provided between the smooth section of the first screw 53 and the first driver seat 55, the second driver 63 is connected to the lifting sleeve 4 through the second driver seat 631, and a second rolling bearing 641 is provided between the smooth section of the second screw 64, the second driver seat 631, and the connecting seat 45.

[0037] like Figure 3 and 5As shown, the column rotation drive mechanism 3 includes a column rotation driver 31 mounted on the base 1. The column 2 is rotatably connected to the column mounting hole 11 of the base 1's support 14, and a worm gear 32 is fixed to the column 2 in the column mounting hole 11. The output end of the column rotation driver 3 is connected to the worm gear 32 via a worm 33. The upper and lower ends of the column mounting hole 11 are rotatably connected to the column 2 via an upper rolling bearing 12 and a lower rolling bearing 13, respectively. A clearance adjustment assembly 34 is provided between the worm 33 and the worm wheel 32. The clearance adjustment assembly 34 includes a worm housing 341, a column rotary driver 31 fixed to one end of the worm housing 341, the worm 33 is disposed inside the worm housing 341, a side hole 141 is provided on the side wall of the support 14, at least part of the worm housing 341 enters the side hole 141 and its outline matches the side hole 141, an arc-shaped slot 342 is provided on the worm housing 341 located inside the side hole 141 for the worm 33 and the worm wheel 32 to be connected for transmission, and both ends of the worm housing 341 are fixed to the support 14 by radial adjustment bolts. The worm housing 341 is fixed to the base 1 by fastening bolts, and the fastening bolts are clearance-fitted with the fastening bolt holes 35 on the worm housing 341 and / or the base 1.

[0038] In this embodiment, a first connecting ear 343 is provided at the end of the worm housing 341, and a second connecting ear 142 is provided on the outer wall of the stand 14 to cooperate with the first connecting ear 343. The first connecting ear 343 and the second connecting ear 142 are fixed by adjusting bolts.

[0039] like Figure 2 As shown, the auxiliary synchronization component 44 includes a clutch column 441 disposed on the upper swing arm seat 41. The clutch column 441 is parallel to the lifting guide rod 22 and the lifting sleeve 4. The lower swing arm seat 42 is provided with a clutch hole 442 that cooperates with the clutch column 441.

[0040] The working principle of this embodiment is as follows: the mechanism can achieve overall rotational positioning through the column rotation drive assembly 3. Specifically, the column rotation driver 31 set on the base 1 outputs power, which drives the worm wheel 32 fixed at the lower end of the column 2 through the worm gear 33, causing the column 2 to rotate within the column mounting hole 11 of the base 1. The rotational motion of the column 2 is transmitted through the guide seat 21 fixed on it to the lifting guide rod 22 that cooperates with the guide seat 21, thereby driving the lifting sleeve 4, the upper swing arm seat 41 and the entire lower swing arm seat 42 fixedly connected to the lifting guide rod 22 to rotate synchronously, thereby realizing the overall rotation relative to the base 1.

[0041] The lifting and lowering motion of the upper swing arm seat 41 is driven by the first threaded screw lifting assembly 5. The first rotary driver 54 rotates, driving the first screw 53 to rotate. The first screw 53 engages with the first nut 52, which is detachably fixed to the upper end of the center hole 51 of the column 2. Since the first nut 52 is axially fixed, the rotational motion of the first screw 53 is converted into its own axial lifting and lowering motion. The first screw 53 drives the lifting sleeve 4 through the first driver seat 55. The lifting sleeve 4 drives the lifting guide rod 22 to rise and fall along the guide seat 21 through the connecting seat 45. At the same time, the rolling element 212 in the guide seat 21 guides the direction, ultimately achieving the overall lifting and lowering positioning.

[0042] The linkage and separation between the upper swing arm seat 41 and the lower swing arm seat 42 are achieved through the auxiliary synchronization component 44. When synchronous movement of the two swing arms is required, the first threaded screw lifting component 5 drives the upper swing arm seat 41 to descend, causing its clutch pin 441 to insert into the clutch hole 442 of the lower swing arm seat 42, achieving mechanical locking. After this, the two swing arms can move as a whole. When the lower swing arm seat 42 needs to move independently, the upper swing arm seat 41 rises, the clutch pin 441 is pulled out, and the lower swing arm seat 42 can then rise and fall independently under the drive of the lower swing arm lifting drive component 6, and can rotate freely relative to the lifting sleeve 4, thereby achieving asynchronous operation.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0044] Although this article extensively uses terms such as base, column mounting hole, upper rolling bearing, lower rolling bearing, stand, side hole, second connecting ear, column, guide seat, guide hole, rolling element, lifting guide rod, lifting guide rod upper and lower sliding hole, axial strip hole, third spiral oil groove, column rotation drive assembly, column rotation actuator, worm gear, worm, clearance adjustment assembly, worm housing, arc groove, first connecting ear, fastening bolt hole, lifting sleeve, upper swing arm seat, lower swing arm seat, lower swing arm support seat, first wear-resistant sleeve, first spiral oil groove, second wear-resistant sleeve, and the third... Terms such as double spiral oil groove, concave step, auxiliary synchronization component, clutch column, clutch hole, connecting seat, first threaded screw lifting component, center hole, first nut, first screw, first rolling bearing, first rotary actuator, first actuator seat, first auxiliary lifting spring, plane bearing, second plug, lower swing arm lifting drive component, linear drive unit, pin structure, radial pin, second actuator, second actuator seat, second screw, second rolling bearing, second nut, second auxiliary lifting spring, and plug are used, but the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A swing lifting mechanism for a sock machine, comprising a base (1) and a column (2), wherein a column rotation drive assembly (3) is provided between the base (1) and the column (2), a lifting sleeve (4) is fitted on the column (2), and a first threaded screw lifting assembly (5) is provided between the lifting sleeve (4) and the column (2), a guide seat (21) located on one side is fixed on the column (2), a lifting guide rod (22) parallel to the column (2) is passed through the guide seat (21), and the lifting guide rod (22) is fixedly connected to the lifting sleeve (4), characterized in that, The lifting sleeve (4) is fixed with an upper swing arm seat (41); The lifting sleeve (4) is also fitted with a lower swing arm seat (42) that can rotate and lift relative to it and is located below the upper swing arm seat (41). A lower swing arm support seat (43) is provided below the lower swing arm seat (42). The lower swing arm support seat (43) is fitted on the lifting sleeve (4), and a lower swing arm lifting drive assembly (6) for driving the lower swing arm support seat (43) to lift is provided between it and the lifting guide rod (22). An auxiliary synchronization component (44) is also provided between the upper swing arm seat (41) and the lower swing arm seat (42).

2. The swing lifting mechanism of the sock machine according to claim 1, characterized in that, The lower swing arm lifting drive assembly (6) includes a linear drive unit (61). The drive end of the linear drive unit (61) is located in the upper and lower sliding hole (221) of the lifting guide rod (22) and can move along its axial direction. The upper and lower sliding hole (221) of the lifting guide rod passes through the lifting guide rod (22) axially. The drive end of the linear drive unit (61) is connected to the lower swing arm support (43) through a pin structure (62) to transmit the axial movement of the drive end of the linear drive unit (61) to the lower swing arm support (43) and drive it to lift.

3. The swing lifting mechanism of the sock machine according to claim 2, characterized in that, The pin structure (62) includes N radial pins (621) distributed circumferentially, N≥1. The lifting guide rod (22) is provided with axial strip holes (222) that allow the lifting guide rod to slide up and down in a radial direction to communicate with the outside and are equal in number to the radial pins (621). The radial pins (621) pass through the axial strip holes (222) and correspond one-to-one. The inner end and outer end of the radial pins (621) are respectively connected to the driving end of the linear drive unit (61) and the lower swing arm support seat (43).

4. The swing lifting mechanism of the sock machine according to claim 3, characterized in that, The linear drive unit (61) includes a second driver (63) fixed to the top of the lifting guide rod (22). The second driver (63) is connected to a second nut (65) via a second screw (64). The second nut (65) is fixed to the inner end of a radial pin (621). A second auxiliary lifting spring (66) is provided between the second nut (65) and the bottom of the lifting guide rod (22).

5. The swing lifting mechanism of the sock machine according to claim 4, characterized in that, A first wear-resistant sleeve (431) is provided between the lower swing arm support (43) and the lifting guide rod (22). The first wear-resistant sleeve (431) is connected to the lower swing arm support (43) and moves up and down synchronously. A plurality of first spiral oil grooves (432) are provided between the first wear-resistant sleeve (431) and the lifting guide rod (22). The radial pin (621) passes through the first wear-resistant sleeve (431).

6. The swing lifting mechanism of the sock machine according to any one of claims 1-5, characterized in that, A second wear-resistant sleeve (433) is provided between the lower swing arm support (43) and the lower swing arm support (42) and the lifting sleeve (4). The second wear-resistant sleeve (433) is fixed to the lower swing arm support (43), and a plurality of second spiral oil grooves (434) are provided between the second wear-resistant sleeve (433) and the lifting sleeve (4). And / or, a plurality of third spiral oil grooves (23) are provided between the column (2) and the lifting sleeve (4).

7. The swing lifting mechanism of the sock machine according to any one of claims 1-5, characterized in that, The first threaded screw lifting assembly (5) includes a central hole (51) axially passing through the column (2). The upper end of the central hole (51) is provided with a first nut (52) that is detachably fixed to the column (2). A first screw (53) is screwed into the first nut (52). The upper end of the first screw (53) is connected to a first rotary driver (54). The first rotary driver (54) is connected to the lifting sleeve (4) through a first driver seat (55). A first auxiliary lifting spring (56) is provided between the bottom of the central hole (51) and the first screw (53).

8. The swing lifting mechanism of the sock machine according to any one of claims 1-5, characterized in that, The lifting guide rod (22) is connected and fixed to the upper end of the lifting sleeve (4) through a connecting seat (45); The lifting guide rod (22) passes through the upper swing arm seat (41); The guide seat (21) is fixed to the column (2) by a flange structure, and at least two rolling elements (212) are provided in the guide hole (211) of the guide seat (21) evenly distributed in the circumferential direction.

9. The swing lifting mechanism of the sock machine according to any one of claims 1-5, characterized in that, The column rotation drive assembly (3) includes a column rotation driver (31) disposed on the base (1). The column (2) is rotatably connected to the column mounting hole (11) of the stand (14) of the base (1), and a worm gear (32) is fixed in the column (2) in the column mounting hole (11). The output end of the column rotation driver (31) is connected to the worm gear (32) through a worm (33). The upper and lower ends of the column mounting hole (11) are rotatably connected to the column (2) through an upper rolling bearing (12) and a lower rolling bearing (13), respectively. A clearance adjustment assembly (34) is provided between the worm (33) and the worm wheel (32). The clearance adjustment assembly (34) includes a worm housing (341). The column rotary driver (31) is fixed at one end of the worm housing (341). The worm (33) is disposed inside the worm housing (341). A side hole (141) is provided on the side wall of the stand (14). At least part of the worm housing (341) enters the side hole (141) and its outline matches the side hole (141). An arc-shaped slot (342) is provided on the worm housing (341) located inside the side hole (141) for the worm (33) and the worm wheel (32) to be connected by transmission. Both ends of the worm housing (341) are fixed to the stand (14) by radial adjustment bolts. The worm housing (341) is fixed to the base (1) by fastening bolts, and the fastening bolts are clearance-fitted with the fastening bolt holes (35) on the worm housing (341) and / or the base (1).

10. The swing lifting mechanism of the sock machine according to any one of claims 1-5, characterized in that, The auxiliary synchronization component (44) includes a clutch column (441) disposed on the upper swing arm seat (41), the clutch column (441) being parallel to the lifting guide rod (22) and the lifting sleeve (4), and the lower swing arm seat (42) being provided with a clutch hole (442) that cooperates with the clutch column (441).

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