Transfer mechanism of sock machine

Abstract

The utility model belongs to the technical field of sock machines, and particularly relates to a transfer motion mechanism of a sock machine, which solves the problems of affecting the life of the equipment and increasing the driving cost. The transfer motion mechanism of the sock machine includes a base and a main shaft vertically arranged on the base, a swing mechanism capable of driving the main shaft to rotate is provided between the base and the main shaft, a lifting sleeve for installing an upper swing arm and a lower swing arm is provided on the main shaft, a circumferential anti-rotation structure is provided between the lifting sleeve and the main shaft, and a ball screw drive structure capable of driving the lifting sleeve to lift and lower along the axial direction of the main shaft is provided between the lifting sleeve and the center hole of the main shaft. The effect of extending the service life of the equipment, reducing the driving resistance, and reducing the driving cost is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sock machines, and particularly relates to a transfer movement mechanism of a sock machine. Background Art

[0002] A sock machine is a device for producing socks, which mainly includes the steps of knitting the sock body, turning over, and sewing the sock toes. Among them, the sock body is knitted in the sock knitting station above the needle cylinder by the cooperation of the needle plate and coil and other related structures on the swing arm. After the sock body is knitted, it is transferred to the turning over and sewing station by the transfer mechanism for subsequent turning over and sewing operations.

[0003] In the current existing technology, most of the transfer mechanisms realize the lifting and lowering control of the swing arm by setting a corresponding lifting drive structure on the side of the main shaft. In this way, the force is placed on the side, and the force in the horizontal direction is uneven. It is easy to generate large friction between the main shaft and the lifting sleeve on which the swing arm is installed, which will wear the parts and affect the service life. At the same time, it also increases the lifting load and increases the driving cost. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and proposes a transfer movement mechanism for a socks machine.

[0005] In order to achieve the purpose of the innovative utility model, the following technical solutions can be used:

[0006] A transfer motion mechanism of a sock machine includes a base and a main shaft vertically arranged on the base, a swing mechanism capable of driving the main shaft to rotate is provided between the base and the main shaft, a lifting sleeve for installing an upper swing arm and a lower swing arm is provided on the main shaft, a circumferential anti-rotation structure is provided between the lifting sleeve and the main shaft, and a ball screw drive structure capable of driving the lifting sleeve to rise and fall along the axial direction of the main shaft is provided between the lifting sleeve and the center hole of the main shaft.

[0007] The transfer mechanism of this sock machine is used to transfer the socks to the subsequent turning over, sewing or other specially designed stations after the socks are knitted. The swing mechanism is used to drive the main shaft to swing back and forth. The upper swing arm and the lower swing arm are set on the main shaft through the lifting sleeve. The circumferential anti-rotation structure is used to limit the relative rotation of the main shaft and the lower swing arm. The lower swing arm rotates with the main shaft to achieve the effect of transferring the socks. The lifting action of the lifting sleeve is realized by the ball screw drive structure, which has a simple structure. The ball screw drive structure is set between the center hole of the main shaft and the lifting sleeve, that is, the force is applied from the central axis, the force is uniform, and the lifting control is stable. Among them, the upper swing arm and the lower swing arm are respectively provided with a needle plate, a coil and related components for knitting the socks. This is common knowledge and will not be elaborated in detail.

[0008] In the above-mentioned sock machine's transfer motion mechanism, the ball screw drive structure includes a flange nut arranged at the upper end of the main shaft and located in the center hole, the flange nut is threadedly connected to the screw, the upper end of the screw is connected to the rotary driver, and the rotary driver is fixed on the top of the lifting sleeve.

[0009] A center hole is provided in the main shaft, and a flange nut is inserted from the upper end of the center hole to achieve fixation, which has better axial positioning and limiting effects, and is more convenient for disassembly and assembly. The flange nut is engaged with the lead screw, and the rotary driver drives the lead screw to rotate to achieve axial relative movement of the lead screw and the flange nut, thereby achieving the purpose of controlling the lifting and lowering of the lifting sleeve relative to the main shaft.

[0010] In the above-mentioned transfer motion mechanism of the sock machine, at least one bearing is provided between the lifting sleeve and the screw rod, the bottom of the outer ring of the bearing abuts against the inner boss of the lifting sleeve, the inner ring of the bearing is sleeved on the shaft neck of the screw rod, the lower end abuts against the bearing retaining ring of the screw rod, the upper end is fixed by a lock nut connected to the shaft neck, and the outer end of the shaft neck is connected to the driving shaft of the rotary driver through a claw coupling.

[0011] The bearing is used to position the screw rod at the center of the lifting sleeve without affecting the relative rotation. The bearing ring, lock nut and inner boss are used to achieve axial limitation of the bearing. Moreover, the bearing is located between the flange nut and the claw coupling, which is equivalent to positioning the screw rod in the middle section, and the positioning effect is better. The lock nut is screwed to the shaft neck through the internal thread, which is convenient for disassembly and assembly and locking the bearing on the bearing ring. The claw coupling is used to realize the transmission between the driving shaft of the rotary drive and the shaft neck. It is common knowledge and will not be elaborated in detail.

[0012] In the above-mentioned transfer movement mechanism of the sock machine, there are two bearings that are axially close to each other, and an anti-shifting convex ring is also provided on the inner wall of the lifting sleeve at the upper end of the bearing. The anti-shifting convex ring is connected to the lifting sleeve as a whole, and the inner diameter of the anti-shifting convex ring is slightly smaller than the outer diameter of the bearing.

[0013] The two bearings are axially close together, and the abutment balance between them makes the two bearings evenly stressed, extending their service life; the anti-movement convex ring is fixed in the lifting sleeve to limit the axial position of the bearing, and the outer diameter of the bearing and the inner diameter of the anti-movement convex ring are not much different, ensuring that the bearing can be installed or moved out from under the anti-movement convex ring under a large force, and is removable.

[0014] In the above-mentioned transfer mechanism of the sock machine, the circumferential anti-rotation structure includes a slide groove arranged on the lifting sleeve along its axial direction, and a sliding key protruding outward and capable of sliding in the slide groove is provided on the main shaft.

[0015] The width of the sliding key is adapted to the width of the sliding groove, and its length is smaller than the length of the sliding groove. The sliding key can only slide in the length direction of the sliding groove, that is, vertical sliding, so that the main shaft and the lifting sleeve can be lifted and lowered axially normally but the rotation is limited.

[0016] In the above-mentioned transfer mechanism of the sock machine, the slide groove passes through the side wall of the lifting sleeve, and the two ends do not axially pass through the two ends of the main shaft, and the slide key is connected to the main shaft through a detachable structure.

[0017] The slide groove is opened through, which makes it easy for the slide key to be loaded and unloaded through the slide groove and the main shaft. The slide groove does not penetrate axially, which realizes the limitation of the axial movement path. The detachable structure realizes the fixation of the slide key and the main shaft, and the detachability facilitates disassembly and assembly.

[0018] In the above-mentioned transfer movement mechanism of the sock machine, the detachable structure includes a sliding key installation countersunk hole arranged on the main shaft, the sliding key installation countersunk hole is provided with a sliding key, and the sliding key is connected to the main shaft through a bolt.

[0019] The sliding key is set in the sliding key installation countersunk hole, part of which is sunk into the hole and part of which is exposed outside the hole. The sunken part can be used to set bolts to fix it to the main shaft without affecting the sliding of the sliding key in the sliding groove. The exposed part slides in the sliding groove to achieve rotation limit.

[0020] In the above-mentioned transfer motion mechanism of the sock machine, the swing mechanism includes a swing drive motor fixed on a base, the base includes a worm gear seat, the main shaft is rotatably connected to the worm gear seat, and the output end of the swing drive motor passes through the side wall of the worm gear seat and is transmission-connected to the drive gear on the main shaft.

[0021] The main shaft is vertically rotated and connected to the worm gear seat. A driving gear is fixed on the main shaft. The output end of the swing drive motor is meshed with the driving gear for transmission to achieve the effect of driving the main shaft to rotate. The details of the worm gear seat and its connection with the main shaft are common knowledge and will not be elaborated in detail.

[0022] In the above-mentioned transfer mechanism of the sock machine, an auxiliary lifting assembly is provided between the lifting sleeve and the main shaft, which can balance the gravity of the lifting sleeve and reduce the load of the rotating driver during lifting.

[0023] The auxiliary lifting assembly is used to apply a certain amount of upward thrust to the lifting sleeve, so as to reduce the load torque of the rotary drive, save power consumption and save costs.

[0024] In the above-mentioned transfer motion mechanism of the sock machine, the auxiliary lifting assembly includes a first lifting spring sleeved on the main shaft, the main shaft is provided with a supporting ring hoop located on the lower swing arm, the upper end of the first lifting spring abuts against the supporting ring hoop, and the lower end abuts against the outer ring of the main shaft.

[0025] The auxiliary lifting assembly provides an upward elastic thrust to the main shaft through the first lifting spring to achieve the auxiliary lifting effect. It has a simple structure and low equipment cost. The support hoop is fixed to the lower end of the lifting sleeve to receive and transmit the thrust of the first lifting spring.

[0026] In the above-mentioned transfer motion mechanism of the sock machine, an upper swing arm and a lower swing arm are provided on the lifting sleeve, an axial elastic lifting assembly is provided between the upper swing arm and the lower swing arm, a separable synchronous rotation positioning assembly is also provided between the upper swing arm and the lower swing arm, a circumferential rotating tension spring assembly is provided between the upper swing arm and the lifting sleeve, and a cylinder is also provided on the lifting sleeve, and the cylinder driving end abuts against the top surface of the upper swing arm.

[0027] The axial elastic lifting assembly is used to lift the upper swing arm so that it has a tendency to rise and move away from the lower swing arm. The synchronous rotation positioning assembly is used to rotate synchronously when the distance between the upper swing arm and the lower swing arm is small, and to release the synchronization after they move away from each other to a certain distance. The cylinder is used to apply downward pressure to the upper swing arm. The downward pressure of the cylinder and the upward push of the elastic lifting assembly cooperate with each other to control the size of the distance between the upper swing arm and the lower swing arm, and to achieve the clutch control of the synchronous rotation positioning assembly. The circumferential rotating tension spring assembly is used to pull the upper swing arm to rotate relative to the lower swing arm after the rotation limit of the upper swing arm and the lower swing arm is released, thereby achieving the effect of pulling the sock body out of the coil. Of course, the sock machine is also provided with a corresponding structure for rotating the upper swing arm and the lower swing arm to vertical alignment. This structure is common knowledge and will not be further expanded.

[0028] In the above-mentioned transfer movement mechanism of the sock machine, the axial elastic lifting assembly includes at least one blind hole opened on the top surface of the lower swing arm, and a push rod inserted in the blind hole, the upper end of the push rod abuts against the bottom of the upper swing arm, and a second lifting spring is provided between the limiting convex ring of the push rod and the bottom surface of the blind hole, the lifting sleeve outer sleeve is provided with a positioning ring, the positioning ring and the top surface of the upper swing arm are fixed by bolts, the push rod is inserted into the through hole of the positioning ring, and the limiting convex ring is limited below the positioning ring; the synchronous rotation positioning assembly includes limiting holes and limiting rods respectively vertically arranged on the lower swing arm and the upper swing arm, and the limiting rod is inserted in the limiting hole.

[0029] The push rod is vertically inserted into the blind hole, and the upper end is exposed and abuts against the bottom surface of the upper swing arm. The second lifting spring is used to apply an upward elastic force to the push rod. The inner diameter of the through hole of the positioning ring is adapted to the outer diameter of the main part of the push rod, but is smaller than the outer diameter of the limiting convex ring, which realizes the limitation of the maximum extension length of the push rod, that is, the highest position of the upper swing arm being lifted. The positioning ring is detachably fixed by bolts, which is convenient for disassembly and assembly. At the same time, the positioning ring is set on the lifting sleeve, which also has a certain positioning effect on the lower swing arm and the lifting sleeve. The synchronous rotation positioning assembly realizes rotation synchronization by inserting the limiting rod into the limiting hole, and the synchronization is released after the limiting rod leaves the limiting hole.

[0030] In the above-mentioned transfer movement mechanism of the sock machine, the circumferentially rotating tension spring assembly includes a winding disk and a tension spring arranged at the top end of the upper swing arm, a pin is vertically fixed to the rear end of the lifting sleeve, a lifting sleeve is slidably connected to the pin, a horizontally extending limiting arc is provided on the side of the lifting sleeve near the upper swing arm, the rear end of the upper swing arm can be relatively rotatably clamped in the limiting arc, the tension spring is wound on the winding disk, one end is hooked on the lifting sleeve, and the other end is fixed to the side wall of the winding disk.

[0031] The tension spring is wound on the winding disk, and its two ends are respectively fixedly connected to the lifting sleeve and the winding disk on the upper swing arm, so that the upper swing arm and the lower swing arm have a tendency to rotate relative to each other, and the lifting sleeve is slidably connected to the pin, and the rear end of the upper swing arm is clamped in the limiting arc to achieve axial limitation. Of course, the sock machine is also provided with a corresponding structure that enables the upper swing arm and the lower swing arm to rotate to vertical flush and reset. The structure and the setting details of the tension spring are common knowledge and will not be elaborated in detail.

[0032] Compared with the prior art, the utility model mainly has the following advantages:

[0033] 1. The circumferential anti-rotation structure of the transfer motion mechanism of the sock machine is used to limit the relative rotation of the main shaft and the lower swing arm. The lower swing arm rotates with the main shaft to achieve the effect of transferring the sock body. The lifting action of the lifting sleeve is realized by a ball screw drive structure. The structure is simple, and the ball screw drive structure is arranged between the center hole of the main shaft and the lifting sleeve, that is, force is applied from the central axis, the force is uniform, and the lifting control is stable.

[0034] 2. A center hole is provided in the main shaft, and the flange nut is inserted from the upper end of the center hole to achieve fixation, which has better axial positioning and limiting effects, and is more convenient for disassembly and assembly. The flange nut is engaged with the screw rod, and the rotary driver drives the screw rod to rotate to achieve the axial relative movement of the screw rod and the flange nut, thereby achieving the purpose of controlling the lifting sleeve relative to the main shaft.

[0035] 3. The bearing is located between the flange nut and the claw coupling, which is equivalent to positioning the screw in the middle section, and the positioning effect is better; the lock nut is screwed to the shaft neck through the internal thread, which is convenient for disassembly and assembly and locking the bearing on the bearing ring.

[0036] 4. The two bearings are tightly attached axially, and the abutment balance between them makes the two bearings evenly stressed, extending their service life; the anti-movement convex ring is fixed in the lifting sleeve to limit the axial position of the bearing, and the outer diameter of the bearing and the inner diameter of the anti-movement convex ring are not much different, ensuring that the bearing can be installed or moved under the anti-movement convex ring under a large force, and is removable.

[0037] 5. The slide slot is opened through, which is convenient for the slide key to be loaded and unloaded through the slide slot and the main shaft. The slide slot does not penetrate axially, which realizes the limit of the axial motion path. The detachable structure realizes the fixation of the slide key and the main shaft, and the detachability is convenient for disassembly and assembly. The slide key is set in the slide key installation countersunk hole, part of it is sunk into the hole, and part of it is exposed outside the hole. The sunken part can be used to set the bolt to realize the fixation to the main shaft, which does not affect the sliding of the slide key in the slide slot. The exposed part slides in the slide slot to realize the rotation limit.

[0038] 6. The auxiliary lifting assembly is used to apply a certain amount of upward thrust to the lifting sleeve, so as to reduce the load torque of the rotary drive, save power consumption and save costs.

[0039] 7. The axial elastic lifting assembly is used to lift the upper swing arm so that it has a tendency to rise and move away from the lower swing arm. The synchronous rotation positioning assembly is used to rotate synchronously when the distance between the upper swing arm and the lower swing arm is small, and to release the synchronization after they are away from each other to a certain distance. The cylinder is used to apply downward pressure to the upper swing arm. The downward pressure of the cylinder and the upward push of the elastic lifting assembly cooperate with each other to control the size of the distance between the upper swing arm and the lower swing arm, and to achieve the clutch control of the synchronous rotation positioning assembly. The circumferential rotating tension spring assembly is used to pull the upper swing arm to rotate relative to the lower swing arm after the rotation limit of the upper swing arm and the lower swing arm is released, thereby achieving the effect of pulling the sock body out of the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0041] Figure 2 It is a cross-sectional schematic diagram provided by the utility model;

[0042] Figure 3 It is a schematic diagram of the cooperation between the main shaft and the screw rod provided by the utility model;

[0043] Figure 4 It is a structural schematic diagram of the lifting sleeve provided by the utility model;

[0044] Figure 5It is a structural schematic diagram of the rear section of the lower swing arm provided by the utility model;

[0045] Figure 6 It is a structural schematic diagram of the ejector rod provided by the utility model.

[0046] In the figure, base 1, worm gear seat 11, main shaft 2, center hole 21, outer ring 22, lifting sleeve 3, upper swing arm 31, lower swing arm 32, inner boss 33, anti-shift convex ring 34, support hoop 35, circumferential rotation tension spring assembly 36, pressure needle plate 37, coil 38, circumferential anti-rotation structure 40, slide groove 41, slide key 42, detachable structure 43, slide key mounting countersunk hole 44, winding plate 45, tension spring 46, pin 47, lifting sleeve 48, limit arc 49, ball screw drive structure Structure 5, flange nut 51, screw 52, ​​rotation driver 53, bearing 54, journal 55, bearing ring 56, lock nut 57, claw coupling 58, swing mechanism 6, swing drive motor 61, drive gear 62, auxiliary jacking assembly 7, first jacking spring 71, axial elastic jacking assembly 8, blind hole 81, jacking rod 82, second jacking spring 83, positioning ring 84, limiting convex ring 85, synchronous rotation positioning assembly 9, cylinder 91, limiting hole 92, limiting rod 93. DETAILED DESCRIPTION

[0047] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0048] Specific implementation examples Figure 1-6 As shown, the transfer motion mechanism of the sock machine includes a base 1 and a main shaft 2 vertically arranged on the base 1, a swing mechanism 6 capable of driving the main shaft 2 to rotate is provided between the base 1 and the main shaft 2, a lifting sleeve 3 for installing an upper swing arm 31 and a lower swing arm 32 is provided on the main shaft 2, a circumferential anti-rotation structure 40 is provided between the lifting sleeve 3 and the main shaft 2, and a ball screw driving structure 5 capable of driving the lifting sleeve 3 to rise and fall axially along the main shaft 2 is provided between the lifting sleeve 3 and the center hole 21 of the main shaft 2.

[0049] Specifically, the transfer mechanism of the hosiery machine is used to transfer the socks to the subsequent turning and sewing station after the socks are knitted. The swing mechanism 6 is used to drive the main shaft 2 to swing back and forth. The upper swing arm 31 and the lower swing arm 32 are arranged on the main shaft 2 through the lifting sleeve 3. The circumferential anti-rotation structure 40 is used to limit the relative rotation of the main shaft 2 and the lower swing arm 32. The lower swing arm 32 rotates with the main shaft 2 to achieve the effect of transferring the socks. The lifting action of the lifting sleeve 3 is realized by the ball screw drive structure 5, which has a simple structure. The ball screw drive structure 5 is arranged between the center hole 21 of the main shaft 2 and the lifting sleeve 3, that is, the force is applied from the central axis, the force is uniform, and the lifting control is stable. Among them, the upper swing arm 31 and the lower swing arm 32 are respectively provided with a needle plate 37, a coil 38 and related components for knitting the socks.

[0050] like Figure 2 , 3 As shown, the ball screw drive structure 5 includes a flange nut 51 arranged at the upper end of the main shaft 2 and located at the center hole 21. The flange nut 51 is threadedly connected to the screw 52. The upper end of the screw 52 is connected to the rotary driver 53. The rotary driver 53 is fixed to the top of the lifting sleeve 3. A bearing 54 is arranged between the lifting sleeve 3 and the screw 52. The bottom of the outer ring of the bearing 54 abuts against the inner boss 33 of the lifting sleeve 3. The inner ring of the bearing 54 is sleeved on the journal 55 of the screw 52. The lower end abuts against the bearing ring 56 of the screw 52. The upper end is fixed by a lock nut 57 connected to the journal 55. The outer end of the journal 55 is connected to the driving shaft of the rotary driver 53 through a claw coupling 58. There are two bearings 54 and they are tightly attached axially. An anti-movement convex ring 34 is also arranged on the inner wall of the lifting sleeve 3 at the upper end of the bearing 54. The anti-movement convex ring 34 is connected to the lifting sleeve 3 as a whole. The inner diameter of the anti-movement convex ring 34 is slightly smaller than the outer diameter of the bearing 54.

[0051] Specifically, the spindle 2 is provided with a center hole 21, and the flange nut 51 is inserted from the upper end of the center hole 21 to achieve fixation, which has better axial positioning and limiting effects, and is more convenient to disassemble and assemble. The flange nut 51 is meshed with the screw rod 52, and the rotary driver 53 drives the screw rod 52 to rotate to achieve the axial relative movement of the screw rod 52 and the flange nut 51, thereby achieving the purpose of controlling the lifting sleeve 3 relative to the spindle 2. The bearing 54 is used to position the screw rod 52 at the center of the lifting sleeve 3 without affecting the relative rotation. The bearing collar 56, the lock nut 57 and the inner boss 33 are used to achieve the axial limiting of the bearing 54; and the bearing 54 is located between the flange nut 51 and the claw coupling 58, which is equivalent to positioning the screw rod 52 in the middle section, and the positioning effect is better; the lock nut 57 is screwed to the shaft neck 55 through the internal thread, which is convenient for disassembly and assembly and locking the bearing 54 on the bearing collar 56; the claw coupling 58 is used to realize the transmission between the driving shaft of the rotary driver 53 and the shaft neck 55. The two bearings 54 are axially close together, and the abutment balance between them makes the two bearings 54 evenly stressed, extending the service life; the anti-displacement convex ring 34 is fixed in the lifting sleeve 3, and is used to limit the axial position of the bearing 54, and the outer diameter of the bearing 54 and the inner diameter of the anti-displacement convex ring 34 are not much different, ensuring that the bearing 54 can be installed or moved out from under the anti-displacement convex ring 34 under a large force, and is removable.

[0052] like Figure 1-4 As shown, the circumferential anti-rotation structure 40 includes a slide groove 41 arranged on the lifting sleeve 3 along its axial direction, and a slide key 42 protruding outward and capable of sliding in the slide groove 41 is provided on the main shaft 2. The slide groove 41 penetrates the side wall of the lifting sleeve 3, and the two ends do not axially penetrate the two ends of the main shaft 2, and the slide key 42 is connected to the main shaft 2 through a detachable structure 43. The detachable structure 43 includes a slide key installation countersunk hole 44 arranged on the main shaft 2, and the slide key installation countersunk hole 44 is provided with a slide key 42, and the slide key 42 is connected to the main shaft 2 through a bolt.

[0053] Specifically, the width of the sliding key 42 is adapted to the width of the sliding groove 41, and the length is less than the length of the sliding groove 41. The sliding key 42 can only slide in the sliding groove 41 along the length direction, that is, vertical sliding, so that the main shaft 2 and the lifting sleeve 3 can be lifted and lowered normally in the axial direction but the rotation is limited. The sliding groove 41 is opened through, so that the sliding key 42 can be loaded and unloaded with the main shaft 2 through the sliding groove 41. The sliding groove 41 is not penetrated axially, so the axial motion path is limited. The detachable structure 43 fixes the sliding key 42 and the main shaft 2, and the detachability facilitates disassembly and assembly. The sliding key 42 is set in the sliding key installation countersunk hole 44, part of which is sunk into the hole and part of which is exposed outside the hole. The sunken part can be used to set bolts to fix it to the main shaft 2, which does not affect the sliding of the sliding key 42 in the sliding groove 41. The exposed part slides in the sliding groove 41 to achieve rotation limitation.

[0054] In this embodiment, the swing mechanism 6 includes a swing drive motor 61 fixed on the base 1, the base 1 includes a worm gear seat 11, the main shaft 2 is rotatably connected to the worm gear seat 11, and the output end of the swing drive motor 61 passes through the side wall of the worm gear seat 11 and is transmission-connected to the drive gear 62 on the main shaft 2.

[0055] Specifically, the main shaft 2 is vertically rotatably connected to the worm gear seat 11 , a driving gear 62 is fixed on the main shaft 2 , and the output end of the swing driving motor 61 is meshed with the driving gear 62 for transmission, thereby achieving the effect of driving the main shaft 2 to rotate.

[0056] As a further optimization of this embodiment, an auxiliary lifting assembly 7 capable of balancing the gravity of the lifting sleeve 3 and reducing the load of the rotary driver 53 during lifting is provided between the lifting sleeve 3 and the main shaft 2. The auxiliary lifting assembly 7 includes a first lifting spring 71 sleeved on the main shaft 2, and a support hoop 35 located on the lower swing arm 32 is provided on the main shaft 2. The upper end of the first lifting spring 71 abuts against the support hoop 35, and the lower end abuts against the outer ring 22 of the main shaft 2.

[0057] Specifically, the auxiliary lifting assembly 7 is used to apply a certain amount of upward thrust to the lifting sleeve 3, which is used to reduce the load torque of the rotary driver 53, save power consumption, and save costs. The auxiliary lifting assembly 7 provides an upward elastic thrust to the main shaft 2 through the first lifting spring 71 to achieve the effect of auxiliary lifting. It has a simple structure and low equipment cost. The support hoop 35 is fixed to the lower end of the lifting sleeve 3 to receive and transmit the thrust of the first lifting spring 71.

[0058] like Figure 1 , 2As shown in Figures 5 and 6, an upper swing arm 31 and a lower swing arm 32 are sleeved on the lifting sleeve 3, an axial elastic lifting component 8 is provided between the upper swing arm 31 and the lower swing arm 32, a separable synchronous rotation positioning component 9 is also provided between the upper swing arm 31 and the lower swing arm 32, a circumferential rotating tension spring component 36 is provided between the upper swing arm 31 and the lifting sleeve 3, and a cylinder 91 is also provided on the lifting sleeve 3, and the driving end of the cylinder 91 rests on the top surface of the upper swing arm 31. The axial elastic lifting component 8 includes three blind holes 81 opened on the top surface of the lower swing arm 32, and a push rod 82 inserted in the blind hole 81, the upper end of the push rod 82 abuts against the bottom of the upper swing arm 31, and a second lifting spring 83 is provided between the limiting protrusion 85 of the push rod 82 and the bottom surface of the blind hole 81. The lifting sleeve is outerly provided with a positioning ring 84, and the positioning ring 84 and the top surface of the lower swing arm 32 are fixed by bolts. The push rod 82 is inserted into the through hole of the positioning ring 84, and the limiting protrusion 85 is limited below the positioning ring 84; the synchronous rotation positioning component 9 includes a limiting hole 92 and a limiting rod 93 which are respectively vertically arranged on the lower swing arm 32 and the upper swing arm 31, and the limiting rod 93 is inserted in the limiting hole 92. The circumferentially rotating tension spring assembly 36 includes a winding disk 45 and a tension spring 46 arranged at the top of the upper swing arm 31. A pin 47 is vertically fixed to the rear end of the lifting sleeve 3. A lifting sleeve 48 is slidably connected to the pin 47. The lifting sleeve 48 is provided with a horizontally extending limit arc 49 near the upper swing arm 31. The rear end of the upper swing arm 31 can be relatively rotatably clamped in the limit arc 49. The tension spring 46 is wound around the winding disk 45, and one end is hooked on the lifting sleeve 48, and the other end is fixed to the side wall of the winding disk 45.

[0059] Specifically, the axial elastic lifting component 8 is used to lift the upper swing arm 31 so that it has a tendency to rise and move away from the lower swing arm 32. The synchronous rotation positioning component 9 is used to rotate synchronously when the distance between the upper swing arm 31 and the lower swing arm 32 is small, and to release the synchronization after they move away from each other to a certain distance. The cylinder 91 is used to apply downward pressure to the upper swing arm 31. The downward pressure of the cylinder 91 and the upward push of the elastic lifting component cooperate with each other to control the size of the distance between the upper swing arm 31 and the lower swing arm 32, and to achieve the clutch control of the synchronous rotation positioning component 9. The circumferential rotating tension spring component 36 is used to pull the upper swing arm 31 to rotate relative to the lower swing arm 32 after the rotation limit of the upper swing arm 31 and the lower swing arm 32 is released, thereby achieving the effect of pulling the sock body out of the coil 38. The sock machine is also provided with a corresponding structure for rotating the upper swing arm 31 and the lower swing arm 32 to vertical alignment. The push rod 82 is vertically inserted into the blind hole 81, and the upper end is exposed and abuts against the bottom surface of the upper swing arm 31. The second lifting spring 83 is used to apply an upward elastic force to the push rod 82. The inner diameter of the through hole of the positioning ring 84 is adapted to the outer diameter of the main body of the push rod 82, but is smaller than the outer diameter of the limiting convex ring 85, which realizes the limitation of the maximum extension length of the push rod 82, that is, the highest position of the upper swing arm 31 being lifted. The positioning ring 84 is detachably fixed by bolts, which is convenient for disassembly and assembly. At the same time, the positioning ring 84 is sleeved on the lifting sleeve 3, and also has a certain positioning effect on the lower swing arm 32 and the lifting sleeve 3. The synchronous rotation positioning assembly 9 realizes rotation synchronization by inserting the limiting rod 93 into the limiting hole 92, and the synchronization is released after the limiting rod 93 leaves the limiting hole 92. The tension spring 46 is wound around the winding disk 45, and its two ends are respectively fixedly connected to the lifting sleeve 48 and the winding disk 45 on the upper swing arm 31, so that the upper swing arm 31 and the lower swing arm 32 have a tendency to rotate relative to each other. The lifting sleeve 48 is slidably connected to the pin 47, and the rear end of the upper swing arm 31 is clamped in the limit arc 49 to achieve axial limitation.

[0060] Specific working principle: during the sock knitting process, the upper swing arm 31 and the lower swing arm 32 are in a close state, and the two rotate synchronously. The needle plate 37 and the coil 38 at the front end of the upper swing arm 31 and the lower swing arm 32 specifically perform the sock knitting operation. When the knitting is completed and the load needs to be transferred, the ball screw driving structure 5 is actuated, the lifting sleeve 3 rises and moves, and the upper swing arm 31 and the lower swing arm 32 pull the sock upward from the needle cylinder, and then the swing mechanism 6 drives the main shaft 2 to rotate, so that the upper swing arm 31 and the lower swing arm 32 swing and rotate, and then the driving end of the cylinder 91 retracts, and the upper swing arm 31 rises under the action of the axial elastic lifting component 8 until the limit rod 93 completely leaves the limit hole 92, the rotation synchronization is released, and the tension spring 46 pulls the lower swing arm 32 to rotate further, and the sock is pulled out to the turning over and sewing head station to complete the transfer.

[0061] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A transfer mechanism for a hosiery machine, comprising a base (1) and a main shaft (2) vertically arranged on the base (1), wherein a swing mechanism (6) capable of driving the main shaft (2) to rotate is arranged between the base (1) and the main shaft (2), characterized in that: A lifting sleeve (3) for mounting an upper swing arm (31) and a lower swing arm (32) is sleeved on the main shaft (2); a circumferential anti-rotation structure (40) is provided between the lifting sleeve (3) and the main shaft (2); and a ball screw drive structure (5) capable of driving the lifting sleeve (3) to move up and down along the axial direction of the main shaft (2) is provided between the lifting sleeve (3) and the center hole (21) of the main shaft (2).

2. The transfer motion mechanism of the sock machine according to claim 1, characterized in that: The ball screw drive structure (5) comprises a flange nut (51) arranged at the upper end of the main shaft (2) and located in the center hole (21); the flange nut (51) is threadedly connected to the screw rod (52); the upper end of the screw rod (52) is connected to the rotary driver (53); and the rotary driver (53) is fixed to the top of the lifting sleeve (3).

3. The transfer motion mechanism of the sock machine according to claim 2, characterized in that: At least one bearing (54) is provided between the lifting sleeve (3) and the screw rod (52). The bottom of the outer ring of the bearing (54) abuts against the inner boss (33) of the lifting sleeve (3). The inner ring of the bearing (54) is sleeved on the shaft neck (55) of the screw rod (52). The lower end abuts against the bearing retaining ring (56) of the screw rod (52). The upper end is fixed by a lock nut (57) connected to the shaft neck (55). The outer end of the shaft neck (55) is connected to the driving shaft of the rotary driver (53) through a claw coupling (58).

4. The transfer motion mechanism of the sock machine according to claim 3, characterized in that: There are two bearings (54) which are tightly attached axially. An anti-movement convex ring (34) is also provided on the inner wall of the lifting sleeve (3) at the upper end of the bearing (54). The anti-movement convex ring (34) is integrally connected with the lifting sleeve (3). The inner diameter of the anti-movement convex ring (34) is slightly smaller than the outer diameter of the bearing (54).

5. The transfer mechanism of the sock machine according to claim 1, characterized in that: The circumferential anti-rotation structure (40) comprises a slide groove (41) arranged on the lifting sleeve (3) along its axial direction, and a sliding key (42) protruding outward and capable of sliding in the slide groove (41) is provided on the main shaft (2).

6. The transfer mechanism of the sock machine according to claim 5, characterized in that: The sliding groove (41) passes through the side wall of the lifting sleeve (3), and the two ends do not axially pass through the two ends of the main shaft (2). The sliding key (42) is connected to the main shaft (2) through a detachable structure (43).

7. The transfer mechanism of the sock machine according to claim 6, characterized in that: The detachable structure (43) comprises a sliding key installation countersunk hole (44) arranged on the main shaft (2), the sliding key installation countersunk hole (44) is provided with a sliding key (42), and the sliding key (42) is connected to the main shaft (2) via a bolt.

8. The transfer mechanism of the hosiery machine according to any one of claims 1 to 7, characterized in that: The swing mechanism (6) comprises a swing drive motor (61) fixed on a base (1); the base (1) comprises a worm gear seat (11); the main shaft (2) is rotatably connected to the worm gear seat (11); and the output end of the swing drive motor (61) passes through a side wall of the worm gear seat (11) and is transmission-connected to a drive gear (62) on the main shaft (2).

9. The transfer motion mechanism of a sock machine according to any one of claims 1 to 7, characterized in that: An auxiliary lifting component (7) is provided between the lifting sleeve (3) and the main shaft (2), which is capable of balancing the gravity of the lifting sleeve (3) and thus reducing the load of the rotary drive (53) during lifting.

10. The transfer motion mechanism of the sock machine according to claim 9, characterized in that: The auxiliary lifting assembly (7) comprises a first lifting spring (71) sleeved on the main shaft (2); the main shaft (2) is provided with a supporting hoop (35) located on the lower swing arm (32); the upper end of the first lifting spring (71) abuts against the supporting hoop (35) and the lower end abuts against the outer ring (22) of the main shaft (2).

11. The transfer motion mechanism of a sock machine according to any one of claims 1 to 7, characterized in that: The lifting sleeve (3) is sleeved with an upper swing arm (31) and a lower swing arm (32); an axial elastic lifting assembly (8) is provided between the upper swing arm (31) and the lower swing arm (32); a separable synchronous rotation positioning assembly (9) is also provided between the upper swing arm (31) and the lower swing arm (32); a circumferential rotating tension spring assembly (36) is provided between the upper swing arm (31) and the lifting sleeve (3); and a cylinder (91) is also provided on the lifting sleeve (3); a driving end of the cylinder (91) is against the top surface of the upper swing arm (31).

12. The transfer mechanism of the sock machine according to claim 11, characterized in that: The axial elastic lifting assembly (8) comprises at least one blind hole (81) formed on the top surface of the lower swing arm (32), and a push rod (82) inserted into the blind hole (81); the upper end of the push rod (82) abuts against the bottom of the upper swing arm (31); a second lifting spring (83) is provided between the limiting protrusion (85) of the push rod (82) and the bottom surface of the blind hole (81); a positioning ring (84) is provided on the outer sleeve of the lifting sleeve (3); the positioning ring (84) and the top surface of the lower swing arm (32) are fixed by bolts; the push rod (82) is inserted into the through hole of the positioning ring (84); and the limiting protrusion (85) is limited to be below the positioning ring (84); The synchronous rotation positioning assembly (9) comprises a limiting hole (92) and a limiting rod (93) respectively arranged vertically on the lower swing arm (32) and the upper swing arm (31), and the limiting rod (93) is inserted into the limiting hole (92); The circumferentially rotating tension spring assembly (36) includes a winding disk (45) and a tension spring (46) arranged at the top end of the upper swing arm (31); a pin column (47) is vertically fixed to the rear end of the lifting sleeve (3); a lifting sleeve (48) is slidably connected to the pin column (47); a horizontally extending limiting arc opening (49) is provided on the lifting sleeve (48) near the upper swing arm (31); the rear end of the upper swing arm (31) can be relatively rotatably clamped in the limiting arc opening (49); the tension spring (46) is wound around the winding disk (45), and one end is hooked on the lifting sleeve (48), and the other end is fixed to the side wall of the winding disk (45).

Images