Swing transfer device for hosiery machine

Abstract

The present invention belongs to the technical field of sock machines, and particularly relates to a swing transfer device for a sock machine, which solves the problems of complex structure and high equipment cost. The swing transfer device of the sock machine includes a base, a main shaft is provided on the base, a swing assembly is provided between the base and the main shaft, a lifting sleeve is provided on the main shaft, a circumferential positioning structure is provided between the lifting sleeve and the main shaft, a rack is provided on the outer wall of the main shaft, a worm gear reducer is provided on the lifting sleeve to cooperate with the rack, a lower swing arm and an upper swing arm are provided on the lifting sleeve, the lower swing arm is fixedly connected to the lifting sleeve, the upper swing arm is movably connected to the lifting sleeve, a swing arm synchronous rotation connection assembly is provided between the upper swing arm and the lower swing arm, and an upper swing arm sleeve lifting assembly is provided between the upper swing arm and the lifting sleeve. The present invention realizes lifting drive by cooperating with the worm gear reducer and the rack on the main shaft, and the upper swing arm sleeve lifting assembly cooperates with the swing arm synchronous rotation connection assembly to realize rotation synchronization and release of the upper and lower swing arms. The structure is simple and the equipment cost is low.

Description

Technical Field

[0001] The invention belongs to the technical field of sock machines, and in particular relates to a swing transfer device of a sock machine. Background Art

[0002] A sock machine is a device for producing socks, which mainly includes the process steps of knitting the sock tube, turning it over, and sewing the sock toe. Among them, the sock tube 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 tube is knitted, it is transferred to the turning and sewing station by the transfer mechanism for subsequent turning over and sewing operations.

[0003] In the current existing technology, in order to realize the lifting drive, some transfer mechanisms set a screw structure on the lifting seat on the side of the main shaft. The main shaft is fixedly connected to the screw nut through the corresponding linkage structure. The driver drives the nut to rise and fall on the screw, thereby realizing the axial lifting movement of the lifting sleeve and the main shaft. Such a design structure is complex, with many parts and components, and the equipment cost is relatively high. Summary of the Invention

[0004] One of the purposes of the present invention is to address the above-mentioned problems existing in the prior art and to propose a swing lifting mechanism for a socks machine.

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

[0006] The lifting mechanism is a pair of fixed gears, and the lifting mechanism is a pair of fixed gears, and the lifting mechanism is a pair of fixed gears, and the lifting mechanism is a pair of fixed gears, and the lifting mechanism is a pair of fixed gears.

[0007] In the swing transfer device of the present invention, the lifting sleeve is sleeved on the main shaft, and the circumferential positioning structure is used to limit the circumferential relative rotation without affecting the axial relative movement. The main shaft is connected to the base and driven to rotate by the swing assembly to achieve the effect of controlling the swing rotation of the lifting sleeve. The lifting action of the lifting sleeve is achieved by the cooperation of the worm gear reducer and the rack. The rack is arranged on the side wall of the main shaft, and the output end of the worm gear reducer is engaged with the worm gear and the rack to achieve the effect of controlling the axial movement of the lifting sleeve on the main shaft. The structure is simple and the driving effect is good. The upper swing arm and the lower swing arm are arranged on the lifting sleeve, and the lifting sleeve is respectively provided with a lower swing arm through hole of the lower swing arm and an upper swing arm through hole of the upper swing arm, and a The wire pressing disc assembly is provided with a coil assembly on the lower swing arm. The wire pressing disc assembly, the coil assembly and the needle cylinder are used together for knitting socks. The lower swing arm and the lifting sleeve are fixedly connected, that is, the lower swing arm and the lifting sleeve rotate and lift synchronously. The upper swing arm is movably connected to the lifting sleeve and can rotate and lift relative to each other. The swing arm synchronous rotation connection assembly is used to rotate synchronously when the distance between the upper swing arm and the lower swing arm is small, and the synchronization is released after they are away from a certain distance. The upper swing arm sleeve lifting assembly is used to control the distance between the upper swing arm and the lower swing arm to realize the clutch control of the rotation synchronization. The further rotation of the upper swing arm relative to the lower swing arm can be used to finally transfer the socks to the flipping and sewing station, and the corresponding mechanism performs the sewing operation of the socks.

[0008] As an optimization, the outer wall of the main shaft is provided with a plurality of tooth grooves evenly distributed along its axial direction, a convex tooth is formed between two adjacent tooth grooves, and all the convex teeth and tooth grooves form the rack.

[0009] The tooth grooves are axially distributed on the outer wall of the main shaft and opened radially. Protruding convex teeth are formed between adjacent tooth grooves. The convex teeth and tooth grooves form a rack, which is easy to process. The convex teeth are an integral part of the main shaft and have excellent structural strength.

[0010] In the above-mentioned swing transfer device of the hosiery machine, the circumferential positioning structure includes a slide groove arranged on the lifting sleeve along the axial direction of the main shaft, and a sliding key protruding outward and capable of axially sliding in the slide groove is provided on the main shaft.

[0011] The width of the sliding key is adapted to the width of the sliding groove, and the length is smaller than the length of the sliding groove. The sliding key can only slide along the length direction in the sliding groove, that is, vertical sliding, so that the main shaft and lifting sleeve can be lifted and lowered normally in the axial direction but the rotation is limited.

[0012] As an optimization, the slide groove passes through the side wall of the lifting sleeve, but its ends do not axially pass through the ends of the main shaft. The sliding key is connected to the main shaft via a first detachable structure. The first detachable structure includes a sliding key mounting countersunk hole provided on the main shaft, the sliding key being provided in the sliding key mounting countersunk hole, and the sliding key being connected to the main shaft via a bolt.

[0013] The slide slot is provided throughout, facilitating assembly and disassembly of the key with the spindle. The slot does not penetrate axially, limiting the axial motion path. The first detachable structure secures the key to the spindle, making assembly and disassembly easier. The key is positioned within the key mounting countersunk hole, partially sunk into the hole and partially exposed. The sunken portion can be used to secure the key to the spindle with bolts without affecting its sliding motion within the slot. The exposed portion slides within the slot, limiting rotation.

[0014] In the above-mentioned swing transfer device of the sock machine, the worm gear reducer includes a first worm wheel and a first worm, the first worm is connected to the first worm driver, the first worm wheel is arranged in the worm wheel mounting groove of the lifting sleeve and is rotatably connected to the lifting sleeve through the worm wheel shaft, the outer end of the worm wheel mounting groove is closed by a cover plate, and the cover plate is detachably fixed to the lifting sleeve.

[0015] The first worm gear is rotatably connected to the lifting sleeve, and the first worm and the first worm gear realize the transmission from the first worm drive to the main shaft. A cover plate is provided on the worm gear mounting groove to prevent foreign matter from entering, and the detachable fixing method facilitates subsequent maintenance and replacement.

[0016] As an optimization, a first code disk is provided between the first worm driver and the first worm, the first worm driver and the first worm are connected via a first coupling, the first code disk is provided between the first coupling and the first worm, and the first code disk is secured to the first worm via a locking nut. A first rotation detection assembly is provided on the first driver mounting seat outside the first coupling, the detection end of which cooperates with the first code disk.

[0017] The first encoder disc and first rotation detection assembly are used to detect rotation angles. The first coupling is used to synchronize the rotation between the first worm and the output end of the first worm driver. The first encoder disc is secured with a locknut for easy assembly and disassembly. The first coupling, first encoder disc, and first rotation detection assembly are common knowledge and will not be discussed in detail.

[0018] In the above-mentioned swing transfer device of the sock machine, a first auxiliary lifting assembly is provided between the lifting sleeve and the main shaft, and the first auxiliary lifting assembly includes a first lifting shaft passed through the center hole of the main shaft, and the upper end of the first lifting shaft abuts against the inner top surface of the lifting sleeve, and a first elastic member is provided between the first lifting shaft and the main shaft.

[0019] The first auxiliary jacking assembly is used to apply a certain amount of upward thrust to the lifting sleeve, which is used to reduce the load torque of the first worm drive, save energy consumption, and save costs. The first auxiliary jacking assembly provides an upward elastic thrust to the main shaft through the first elastic member to achieve the effect of auxiliary jacking. It has a simple structure and low equipment cost. The first elastic member is sleeved on the first jacking shaft, its upper end abuts against the outer abutment step of the first jacking shaft, and its lower end abuts against the inner abutment step of the center hole. The inner and outer abutment steps are arranged circumferentially, and the step surface faces the first elastic member.

[0020] As an optimization, the first lifting shaft is coaxially arranged with the lifting sleeve, and a positioning column is provided at the top end of the first lifting shaft deviating from the rotation center, a positioning hole is provided on the top surface of the lifting sleeve, and the positioning column is inserted into the positioning hole.

[0021] The positioning column and the positioning hole are both set away from the rotation center, and the two are plugged in and positioned, and the rotation is limited at the same time to ensure the synchronization of the rotation of the first lifting shaft and the lifting sleeve, and the swing control is more accurate.

[0022] In the above-mentioned swing transfer device of the sock machine, a lower swing arm fixing ring is provided on the lifting sleeve, the lower end of the lower swing arm rests on the annular step of the lower swing arm fixing ring and is fixed by a second detachable structure, and an annular gap is provided between the main shaft and the lifting sleeve, the upper swing arm is fixed on the upper swing arm mounting sleeve, the lower end of the upper swing arm mounting sleeve is open and is sleeved on the lifting sleeve and located in the annular gap, and an upper swing arm sleeve lifting assembly is provided between the upper swing arm mounting sleeve and the main shaft, which can make the upper swing arm rise and fall along the axial direction of the lifting sleeve.

[0023] The upper end of the lifting sleeve is provided with a lower swing arm fixing ring, and the lower swing arm rests on the lower swing arm fixing ring, and the lower swing arm through hole and the side wall of the annular step are just engaged. A concave stop is provided at the lower end of the upper swing arm through hole, and an annular step is circumferentially provided on the side wall of the upper swing arm mounting sleeve, and the annular step is just engaged in the concave stop. The bolt serves as a second detachable structure to fix the lower swing arm and the lifting sleeve, and the upper swing arm mounting sleeve can be rotatably and lifted and engaged in the annular gap. The upper swing arm sleeve lifting assembly is used to drive the upper swing arm to move away from and approach the lower swing arm.

[0024] In the above-mentioned swing transfer device of the sock machine, the upper swing arm sleeve lifting assembly includes a lifting cylinder fixed on the top of the upper swing arm mounting sleeve, the output end of the lifting cylinder is connected to the lifting sleeve through a floating joint, and the floating joint is arranged coaxially with the main shaft.

[0025] The driving end of the lifting cylinder is fixedly connected to the lifting sleeve through a floating joint, so as to realize the lifting and lowering control of the upper swing arm relative to the lower swing arm. The fixed connection is specifically realized by a floating joint. The upper end of the floating joint is fixed to the output end of the lifting cylinder, and the lower end is clamped in the joint limiting hole on the top surface of the lifting sleeve. The joint limiting hole includes a strip segment and a circular segment connected as one piece. The width of the strip segment is adapted to the outer diameter of the limiting groove at the lower end of the floating joint. The inner diameter of the circular segment is larger than the outer diameter of the limiting part at the lower end of the floating joint. The limiting groove of the floating joint is clamped from the circular segment into the straight segment, and the axial limit is formed by the limiting part, which is convenient for disassembly and assembly.

[0026] In the above-mentioned swing transfer device of the sock machine, the lower swing arm is provided with at least one second auxiliary lifting component that can be used to assist in lifting the upper swing arm or the upper swing arm mounting sleeve; and / or, at least one elastic lifting auxiliary component for assisting in lifting the upper swing arm mounting sleeve is provided between the lifting sleeve and the upper swing arm mounting sleeve.

[0027] The second auxiliary jacking component is used to balance part of the gravity of the upper swing arm, reduce the load of the lifting cylinder, and thus reduce the driving cost. The elastic jacking auxiliary part can specifically be a mold spring. The mold spring has a rectangular cross-section and a high compression ratio. Its upper and lower ends are respectively against the inner top surface of the upper swing arm mounting sleeve and the upper end surface of the lifting sleeve, providing an upward thrust to the upper swing arm mounting sleeve, which is used to balance the gravity of the upper swing arm mounting sleeve and the upper swing arm mounted thereon, reduce the load of the lifting cylinder, and reduce the driving cost. Furthermore, a positioning ring is provided at the top of the lifting sleeve, and the outer diameter of the elastic jacking auxiliary part is adapted to the inner diameter of the positioning ring. The lower end of the elastic jacking auxiliary part is just stuck in the positioning ring, which is used for positioning on the one hand and for preventing the elastic jacking auxiliary part from wearing out prematurely on the other hand.

[0028] In the above-mentioned swing transfer device of the sock machine, the second auxiliary lifting assembly includes a second push rod mounting hole arranged on the lower swing arm, a second lifting rod is provided in the second push rod mounting hole, and a second elastic member is provided between the second lifting rod and the second push rod mounting hole. The lower end of the second elastic member abuts against the second push rod mounting hole, and the upper end abuts against the second limiting ring of the second lifting rod, and the second limiting ring abuts against the push rod sealing ring, and the push rod sealing ring is fixed to the upper swing arm.

[0029] The second lifting rod is arranged in the second lifting rod mounting hole of the lower swing arm. The lifting rod is restricted in the second lifting rod mounting hole by the lifting rod sealing ring and will not completely separate from the second lifting rod mounting hole. The lifting rod sealing ring and the upper swing arm are detachable and fixed, and the disassembly and assembly are convenient. The second elastic member is used to provide a specific upward elastic force to the second lifting rod to balance the gravity of the upper swing arm.

[0030] In the above-mentioned swing transfer device of the hosiery machine, the swing arm synchronous rotation connection assembly includes a limiting hole and a limiting rod vertically arranged on the lower swing arm and the upper swing arm respectively, and the limiting rod is inserted into the limiting hole.

[0031] A limit hole and a limit rod are respectively provided on the upper swing arm and the lower swing arm. The limit rod is inserted into the limit hole to realize rotation limit, thereby achieving rotation synchronization. The synchronization is released after the limit rod leaves the limit hole.

[0032] In the above-mentioned swing transfer device of the sock machine, a circumferential return spring is provided between the upper swing arm and the lower swing arm, one end of the circumferential return spring is arranged in the spring ring groove of the upper swing arm, and the lower swing arm is provided with a spring fixing column deviating from the rotation center, and a spring lifting movable sleeve is provided on the spring fixing column, and the other end of the circumferential return spring is arranged on the spring lifting movable sleeve, and the spring lifting movable sleeve is also provided with a circumferential anti-rotation structure.

[0033] The circumferential return spring is wound in the spring ring groove, and its two ends are fixedly connected to the spring lifting sleeve on the lower swing arm and the spring ring groove on the upper swing arm respectively, so that the upper swing arm and the lower swing arm have a tendency to rotate relative to each other, and the spring lifting sleeve is slidably connected to the spring fixed column. A limiting arc is also provided on the side of the spring lifting sleeve, and the rear end of the upper swing arm is clamped in the limiting arc to achieve axial limitation. The circumferential anti-rotation structure is used to limit the circumferential rotation of the spring lifting sleeve.

[0034] In the above-mentioned swing transfer device of the sock machine, the circumferential anti-rotation structure includes a pulley arranged on a spring lifting sleeve, and the pulley rests on the first worm drive housing of the worm gear reducer, or the circumferential anti-rotation structure includes a limiting ridge arranged axially on the spring fixing column, and the spring lifting sleeve is provided with a limiting groove that cooperates with the limiting ridge.

[0035] The pulley rests against the first worm drive housing, providing anti-rotation support force in the horizontal direction, and good relative lifting can be ensured by rotating the pulley in the vertical direction. As another feasible solution, a limiting convex strip is directly provided on the spring fixing column, and the anti-rotation purpose of the spring lifting movable sleeve is achieved by the rotation limitation of the limiting groove and the limiting convex strip of the spring lifting movable sleeve.

[0036] As an optimization, the swing assembly includes a second worm drive fixed to a base, the base including a worm gear seat, the spindle rotatably connected to the worm gear seat, the second worm drive connected to the second worm via a second coupling, and the second worm is drivingly connected to the drive worm gear on the spindle. A second code disc is provided between the second coupling and the second worm, the second code disc being secured to the second worm via a locking nut, and a second rotation detection assembly having a detection end that cooperates with the second code disc is provided on the second driver mounting seat outside the second coupling.

[0037] The main shaft is vertically connected to the worm gear seat, and a drive worm gear is fixed to the main shaft. The output end of the second worm drive engages with the drive worm gear through the second worm and the second coupling to achieve the effect of driving the main shaft to rotate. The details of the connection between the second coupling and the worm gear seat and the main shaft are common knowledge and are not elaborated in detail. The second code disk and the second rotation detection assembly are used to detect the rotation angle. The second coupling is used to achieve rotation synchronization between the second worm and the second worm drive output end. The second code disk is fixed by a locking nut for easy assembly and disassembly. The second coupling, second code disk, and second rotation detection assembly are common knowledge and are not elaborated in detail.

[0038] Compared with the prior art, the present invention has the following advantages:

[0039] The cam is connected to the base via a camming mechanism, and the camming mechanism is connected to the base via a camming mechanism, so that the camming mechanism can be controlled by the camming mechanism.

[0040] 2. The width of the sliding key is adapted to the width of the slide groove, and its length is smaller than the length of the slide groove. The sliding key can only slide along the length direction in the slide groove, that is, vertical sliding, so that the main shaft and lifting sleeve can be lifted and lowered normally in the axial direction but the rotation is limited.

[0041] 3. The first worm gear is rotatably connected to the lifting sleeve. The first worm and the first worm gear realize the transmission from the first worm drive to the main shaft. A cover plate is set on the worm gear mounting groove to prevent foreign matter from entering. The detachable fixing method facilitates subsequent maintenance and replacement.

[0042] 4. The first auxiliary lifting assembly applies a certain upward thrust to the lifting sleeve, reducing the load torque of the first worm drive, saving energy and costs. The first auxiliary lifting assembly uses the first elastic member to provide an upward elastic thrust to the main shaft to achieve the auxiliary lifting effect, resulting in a simple structure and low equipment cost.

[0043] 5. A lower swing arm fixing ring is provided at the upper end of the lifting sleeve, and the lower swing arm rests on the lower swing arm fixing ring. The lower swing arm through hole and the side wall of the annular step are engaged and positioned. A concave stop is provided at the lower end of the upper swing arm through hole. An annular step is circumferentially provided on the side wall of the upper swing arm mounting sleeve, and the annular step is just clamped in the concave stop, and the two can be further fixed by bolts. The upper swing arm mounting sleeve can be rotatably and lifted and clamped in the annular gap. The upper swing arm sleeve lifting assembly is used to drive the upper swing arm to move away from and closer to the lower swing arm.

[0044] 6. The second auxiliary lifting assembly is used to partially offset the weight of the upper arm, reducing the load on the lifting cylinder and thus lowering drive costs. The elastic lifting auxiliary component provides an upward thrust to the upper arm mounting sleeve, balancing the weight of the upper arm mounting sleeve and the upper arm mounted on it, reducing the load on the lifting cylinder and lowering drive costs.

[0045] 7. The circumferential return spring is wound in the spring ring groove, and its two ends are fixedly connected to the spring lifting sleeve on the lower swing arm and the spring ring groove 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. The spring lifting sleeve is slidably connected to the spring fixed column. A limiting arc is also provided on the side of the spring lifting sleeve. The rear end of the upper swing arm is clamped in the limiting arc to achieve axial limitation. The circumferential anti-rotation structure is used to limit the circumferential rotation of the spring lifting sleeve.

[0046] 8. The pulley rests against the first worm drive housing, providing anti-rotation support in the horizontal direction, and ensuring good relative lifting through the rotation of the pulley in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 1 is a schematic diagram of the overall structure provided by the present invention (Example 1);

[0048] Figure 2 1 is a cross-sectional schematic diagram provided by the present invention (Example 1);

[0049] Figure 3 1 is a rear view schematic diagram provided by the present invention (Example 1);

[0050] Figure 4 yes Figure 3 Schematic diagram of the cross section at AA in the middle;

[0051] Figure 5 It is a structural schematic diagram of the main shaft provided by the present invention;

[0052] Figure 6 It is a structural schematic diagram of the lifting sleeve provided by the present invention;

[0053] Figure 7 It is a structural schematic diagram of the first lifting shaft provided by the present invention;

[0054] Figure 8 It is a cross-sectional schematic diagram of the lifting sleeve provided by the present invention and the worm gear reducer thereon;

[0055] Figure 9 It is a structural schematic diagram of the second lifting rod provided by the present invention;

[0056] Figure 10 Schematic diagram of the coordination of the upper swing arm, the lower swing arm and the circumferential anti-rotation structure provided by the present invention (Example 1);

[0057] Figure 11 It is a structural schematic diagram of the circumferential anti-rotation structure provided by the present invention (Example 2).

[0058] In the figure, the base 1, the main shaft 11, the lifting sleeve 12, the rack 13, the lower swing arm 14, the upper swing arm 15, the center hole 16, the lower swing arm fixing ring 17, the annular step 18, the annular gap 19, the upper swing arm mounting sleeve 20, the lower swing arm through hole 21, the upper swing arm through hole 22, the concave stop 23, the elastic lifting auxiliary part 24, the positioning ring 25, the circumferential positioning structure 3, the slide groove 31, the sliding key 32, the first detachable structure 33, the sliding key mounting countersunk hole 34,

[0059] Worm gear reducer 4, first worm wheel 41, first worm 42, first worm driver 43, worm wheel mounting groove 44, cover plate 45, first code disc 46, first coupling 47, locking nut 48, first rotation detection assembly 49, first driver mounting seat 50, worm wheel shaft 501,

[0060] Swing arm synchronous rotation connection component 5, limiting hole 51, limiting rod 52,

[0061] Upper swing arm sleeve lifting assembly 6, lifting cylinder 61, second auxiliary lifting assembly 62, second push rod mounting hole 63, second push rod 64, second elastic member 65, second limiting ring 66, push rod sealing ring 67, floating joint 68, joint limiting hole 69, limiting part 70,

[0062] The first auxiliary lifting assembly 7, the first lifting shaft 71, the first elastic member 72, the outer abutting step 73, the inner abutting step 74, the positioning column 75, the positioning hole 76,

[0063] Swing assembly 8, second worm driver 81, worm gear seat 82, second coupling 83, second worm 84, driving worm gear 85, second code disc 86, second driver mounting seat 87, second rotation detection assembly 88,

[0064] Circumferential return spring 9, spring ring groove 91, spring fixing column 92, spring lifting movable sleeve 93, circumferential anti-rotation structure 94, pulley 95, limiting convex strip 96, limiting groove 97, limiting arc opening 98. DETAILED DESCRIPTION

[0065] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0066] Example 1

[0067] Specific implementation examples Figure 1-10 As shown, the swing transfer device of the hosiery machine includes a base 1, a main shaft 11 is provided on the base 1, a swing assembly 8 capable of driving the main shaft 11 to rotate forward and reverse is provided between the base 1 and the main shaft 11, a lifting sleeve 12 is provided on the main shaft 11, a circumferential positioning structure 3 is provided between the lifting sleeve 12 and the main shaft 11, a rack 13 is provided on the outer wall of the main shaft 11 along its axial direction, a worm gear reducer 4 is provided on the lifting sleeve 12, and a first worm gear 41 of the worm gear reducer 4 is connected to the rack 13. The lifting sleeve 12 is meshed and connected, and a lower swing arm 14 and an upper swing arm 15 are provided on the lifting sleeve 12, the lower swing arm 14 is fixedly connected to the lifting sleeve 12, and the upper swing arm 15 is movably connected to the lifting sleeve 12. A swing arm synchronous rotation connection component 5 is provided between the upper swing arm 15 and the lower swing arm 14, which can make the upper swing arm 15 and the lower swing arm 14 rotate synchronously and be separated. An upper swing arm sleeve lifting component 6 is provided between the upper swing arm 15 and the lifting sleeve 12, which can make the upper swing arm 15 rise and fall axially along the lifting sleeve 12.

[0068] Specifically, in the swing transfer device of the present invention, the lifting sleeve 12 is sleeved on the main shaft 11, and the circumferential positioning structure 3 is used to limit the circumferential relative rotation without affecting the axial relative movement. The main shaft 11 is rotatably connected to the base 1 and driven to rotate by the swing assembly 8 to achieve the effect of controlling the swing rotation of the lifting sleeve 12. The lifting action of the lifting sleeve 12 is achieved by the cooperation of the worm gear reducer 4 and the rack 13. The rack 13 is arranged on the side wall of the main shaft 11. The output end of the worm gear reducer 4 is engaged with the worm gear and the rack 13 to achieve the effect of controlling the axial movement of the lifting sleeve 12 on the main shaft 11. The structure is simple and the driving effect is good. The upper swing arm 15 and the lower swing arm 14 are arranged on the lifting sleeve 12. The lifting sleeve 12 is respectively penetrated by the lower swing arm through hole 21 of the lower swing arm 14 and the upper swing arm through hole 2 of the upper swing arm 15 2. A wire pressing disc assembly is provided on the upper swing arm 15, and a coil assembly is provided on the lower swing arm 14. The wire pressing disc assembly, the coil assembly and the needle cylinder are used in conjunction with each other for knitting a sock, wherein the lower swing arm 14 and the lifting sleeve 12 are fixedly connected, that is, the lower swing arm 14 and the lifting sleeve 12 rotate and lift synchronously, and the upper swing arm 15 is movably connected to the lifting sleeve 12 and can rotate and lift relative to each other. The swing arm synchronous rotation connection assembly 5 is used to rotate synchronously when the distance between the upper swing arm 15 and the lower swing arm 14 is small, and to release the synchronization when they are away from each other to a certain distance. The upper swing arm sleeve lifting assembly 6 is used to control the distance between the upper swing arm 15 and the lower swing arm 14 to realize clutch control of rotation synchronization. The upper swing arm 15 further rotates relative to the lower swing arm 14 to finally transfer the sock to the turning and sewing station, and the corresponding mechanism performs the sewing operation of the sock.

[0069] As an optimization of this embodiment, the outer wall of the main shaft 11 is provided with a plurality of tooth grooves evenly distributed along its axial direction. Raised teeth are formed between adjacent tooth grooves, and the combined teeth and tooth grooves form a rack 13. The tooth grooves are distributed axially on the outer wall of the main shaft 11 and radially open, with raised teeth formed between adjacent tooth grooves. The raised teeth and tooth grooves together form the rack 13, making it easy to manufacture. Furthermore, the raised teeth are an integral part of the main shaft 11, providing excellent structural strength.

[0070] like Figure 1 、 2 As shown in Figures 6 and 8, the circumferential positioning structure 3 includes a slide groove 31 provided on the lifting sleeve 12 and arranged axially along the main shaft 11. A sliding key 32 is provided on the main shaft 11, which protrudes outward and can slide axially within the slide groove 31. The slide groove 31 penetrates the side wall of the lifting sleeve 12 and does not axially penetrate the ends of the main shaft 11 at both ends. The sliding key 32 is connected to the main shaft 11 via a first detachable structure 33. The first detachable structure 33 includes a sliding key mounting countersunk hole 34 provided on the main shaft 11. The sliding key mounting countersunk hole 34 is provided with a sliding key 32, and the sliding key 32 is connected to the main shaft 11 via bolts.

[0071] Specifically, the width of the sliding key 32 is adapted to the width of the chute 31, and the length is less than the length of the chute 31. The sliding key 32 can only slide in the length direction of the chute 31, that is, vertically, so that the main shaft 11 and the lifting sleeve 12 can be raised and lowered normally in the axial direction but are rotationally limited. The chute 31 is opened through, which facilitates the loading and unloading of the sliding key 32 with the main shaft 11 through the chute 31. The chute 31 is not penetrated axially, which limits the axial motion path. The first detachable structure 33 fixes the sliding key 32 and the main shaft 11, and the detachability facilitates assembly and disassembly. The sliding key 32 is set in the sliding key mounting countersunk hole 34, partially sunk in the hole and partially exposed outside the hole. The sunken part can be used to set a bolt to achieve fixation to the main shaft 11, without affecting the sliding of the sliding key 32 in the chute 31. The exposed part slides in the chute 31 to achieve rotational limitation.

[0072] like Figure 1 、 2 As shown in Figures 6 and 8, the worm gear reducer 4 includes a first worm wheel 41 and a first worm 42. The first worm 42 is connected to a first worm driver 43. The first worm wheel 41 is disposed in a worm wheel mounting groove 44 of the lifting sleeve 12 and is rotationally connected to the lifting sleeve 12 via a worm wheel shaft 501. The outer end of the worm wheel mounting groove 44 is closed by a cover plate 45, and the cover plate 45 is detachably fixed to the lifting sleeve 12. A first code disk 46 is provided between the first worm driver 43 and the first worm 42. The first worm driver 43 and the first worm 42 are connected via a first coupling 47. A first code disk 46 is provided between the first coupling 47 and the first worm 42, and the first code disk 46 is fixed to the first worm 42 via a locking nut 48. A first rotation detection component 49 is provided on the first driver mounting seat 50 outside the first coupling 47, the detection end of which cooperates with the first code disk 46.

[0073] Specifically, a first worm gear 41 is rotatably connected to the lifting sleeve 12. The first worm 42 and the first worm gear 41 transmit power from the first worm driver 43 to the main shaft 11. A cover 45 is provided on the worm gear mounting slot 44 to prevent the ingress of foreign matter. The removable mounting arrangement facilitates subsequent maintenance and replacement. A first code disk 46 and a first rotation detection assembly 49 are used to detect the rotation angle. A first coupling 47 is used to synchronize the rotation between the first worm 42 and the output end of the first worm driver 43. The first code disk 46 is secured by a lock nut 48, making it easy to assemble and disassemble.

[0074] like Figure 2 、 7As shown, a first auxiliary lifting assembly 7 is provided between the lifting sleeve 12 and the main shaft 11. The first auxiliary lifting assembly 7 includes a first lifting shaft 71 that passes through the center hole 16 of the main shaft 11. The upper end of the first lifting shaft 71 abuts the inner top surface of the lifting sleeve 12. A first elastic member 72 is provided between the first lifting shaft 71 and the main shaft 11. The first lifting shaft 71 is arranged coaxially with the lifting sleeve 12, and a positioning post 75 is provided at the top end of the first lifting shaft 71, offset from the rotation center. A positioning hole 76 is provided on the top surface of the lifting sleeve 12, and the positioning post 75 is inserted into the positioning hole 76.

[0075] Specifically, the first auxiliary lifting assembly 7 is used to apply a certain amount of upward thrust to the lifting sleeve 12, which is used to reduce the load torque of the first worm drive 43, save energy consumption, and save costs. The first auxiliary lifting assembly 7 provides an upward elastic thrust to the main shaft 11 through the first elastic member 72 to achieve the effect of auxiliary lifting. The first elastic member 72 is a spring with a simple structure and low equipment cost. The first elastic member 72 is sleeved on the first lifting shaft 71, and its upper end is against the outer abutment step 73 of the first lifting shaft 71, and the lower end is against the inner abutment step 74 of the center hole 16. The inner abutment step 74 and the outer abutment step 73 are circumferentially arranged, and the step surface faces the first elastic member 72. The positioning column 75 and the positioning hole 76 are both set away from the rotation center. The two are plugged in and positioned, and the rotation limit is simultaneously ensured to ensure the synchronization of the rotation of the first lifting shaft 71 and the lifting sleeve 12, and the swing control is more accurate.

[0076] like Figure 1 、 2 As shown in Figure 3, a lower swing arm fixing ring 17 is provided on the lifting sleeve 12, and the lower end of the lower swing arm 14 rests on the annular step 18 of the lower swing arm fixing ring 17 and is fixed by a second detachable structure. An annular gap 19 is provided between the main shaft 11 and the lifting sleeve 12, and the upper swing arm 15 is fixed on the upper swing arm mounting sleeve 20. The lower end of the upper swing arm mounting sleeve 20 is open and is sleeved on the lifting sleeve 12 and located in the annular gap 19. An upper swing arm sleeve lifting assembly 6 is provided between the upper swing arm mounting sleeve 20 and the main shaft 11, which can make the upper swing arm 15 rise and fall axially along the lifting sleeve 12.

[0077] Specifically, a lower swing arm fixing ring 17 is provided at the upper end of the lifting sleeve 12, and the lower swing arm 14 rests on the lower swing arm fixing ring 17, and the lower swing arm through hole 21 and the side wall of the annular step 18 are just engaged, and a concave stop 23 is provided at the lower end of the upper swing arm through hole 22, and an annular step 18 is circumferentially provided on the side wall of the upper swing arm mounting sleeve 20, and the annular step 18 is just engaged in the concave stop 23. The bolt serves as a second detachable structure to fix the lower swing arm 14 and the lifting sleeve 12, and the upper swing arm mounting sleeve 20 can be rotatably and lifted and locked in the annular gap 19. The upper swing arm sleeve lifting assembly 6 is used to drive the upper swing arm 15 to move away from and closer to the lower swing arm 14.

[0078] like Figure 1 、 2 As shown, the upper swing arm sleeve lifting assembly 6 includes a lifting cylinder 61 fixed on the top of the upper swing arm mounting sleeve 20. The output end of the lifting cylinder 61 is connected to the lifting sleeve 12 through a floating joint 68, and the floating joint 68 is coaxially arranged with the main shaft 11. The lower swing arm 14 is provided with a second auxiliary lifting component 62 that can be used to assist in lifting the upper swing arm mounting sleeve 20. The second auxiliary lifting component 62 includes a second push rod mounting hole 63 set on the lower swing arm 14, and a second lifting rod 64 is provided in the second push rod mounting hole 63. A second elastic member 65 is provided between the second lifting rod 64 and the second push rod mounting hole 63. The lower end of the second elastic member 65 abuts on the second push rod mounting hole 63, and the upper end abuts on the second limiting ring 66 of the second lifting rod 64, and the second limiting ring 66 abuts on the push rod sealing ring 67. The push rod sealing ring 67 is fixed to the upper swing arm 15. An elastic lifting auxiliary component 24 for assisting in lifting the upper swing arm mounting sleeve 20 is provided between the lifting sleeve 12 and the upper swing arm mounting sleeve 20.

[0079] Specifically, the output end of the lifting cylinder 61 is fixedly connected to the lifting sleeve 12 through a floating joint 68, so as to realize the lifting and lowering control of the upper swing arm 15 relative to the lower swing arm 14. The elastic lifting auxiliary part 24 is made of a mold spring, and its upper and lower ends are respectively against the inner top surface of the upper swing arm mounting sleeve 20 and the upper end surface of the lifting sleeve 12, providing an upward thrust to the upper swing arm mounting sleeve 20, which is used to balance the gravity of the upper swing arm mounting sleeve 20 and the upper swing arm 15 mounted thereon, reduce the load of the lifting cylinder 61, and reduce the driving cost. Moreover, a positioning ring 25 is provided at the top of the lifting sleeve 12, and the outer diameter of the elastic lifting auxiliary part 24 is adapted to the inner diameter of the positioning ring 25. The lower end of the elastic lifting auxiliary part 24 is just stuck in the positioning ring 25, which is used for positioning on the one hand and to prevent the elastic lifting auxiliary part 24 from wearing out prematurely on the other hand. The threaded section at the top of floating joint 68 is screwed into a connecting threaded hole on the output end of lift cylinder 61. Its lower end is secured to a joint stopper hole 69 on the top surface of lift sleeve 12. Stopper hole 69 consists of an integrally connected strip and circular section. The width of the strip section matches the outer diameter of the stopper slot at the bottom end of floating joint 68. The inner diameter of the circular section is larger than the outer diameter of a stopper portion 70 at the bottom end of the floating joint. The stopper slot of floating joint 68 is locked into the linear section from the circular section, and axially limited by stopper portion 70. The second auxiliary lifting assembly 62 is used to balance some of the weight of the upper swing arm 15, reducing the load on lift cylinder 61 and thereby lowering drive costs. The second lifting rod 64 is arranged in the second lifting rod mounting hole 63 of the lower swing arm 14. The lifting rod is restricted in the second lifting rod mounting hole 63 by the lifting rod sealing ring 67 and will not completely separate from the second lifting rod mounting hole 63. The lifting rod sealing ring 67 and the upper swing arm 15 are detachable and fixed, and the disassembly and assembly are convenient. The second elastic member 65 is used to provide a specific upward elastic force to the second lifting rod 64 to balance the gravity of the upper swing arm 15. The second elastic member 65 is a spring.

[0080] In this embodiment, the swing arm synchronous rotation connection assembly 5 includes a limiting hole 51 vertically provided on the lower swing arm 14 and a limiting rod 52 provided on the upper swing arm 15 , and the limiting rod 52 is inserted into the limiting hole 51 .

[0081] Specifically, a limit hole 51 and a limit rod 52 are respectively provided on the upper swing arm 15 and the lower swing arm 14. The limit rod 52 is inserted into the limit hole 51 to realize rotation limit, thereby achieving rotation synchronization. The synchronization is released after the limit rod 52 leaves the limit hole 51.

[0082] like Figure 1 、 10 As shown, a circumferential return spring 9 is provided between the upper swing arm 15 and the lower swing arm 14. One end of the circumferential return spring 9 is arranged in the spring ring groove 91 of the upper swing arm 15. A spring fixing column 92 is provided at the lower swing arm 14 deviating from the rotation center. A spring lifting movable sleeve 93 is provided on the spring fixing column 92. The other end of the circumferential return spring 9 is arranged on the spring lifting movable sleeve 93. The spring lifting movable sleeve 93 is also provided with a circumferential anti-rotation structure 94.

[0083] Specifically, the circumferential return spring 9 is wound around the spring ring groove 91, and its two ends are fixedly connected to the spring lifting movable sleeve 93 on the lower swing arm 14 and the spring ring groove 91 on the upper swing arm 15, so that the upper swing arm 15 and the lower swing arm 14 have a tendency to rotate relative to each other. The spring lifting movable sleeve 93 is slidably connected to the spring fixed column 92. A limiting arc opening 98 is also provided on the side of the spring lifting movable sleeve 93. The rear end of the upper swing arm 15 is clamped in the limiting arc opening 98 to achieve axial limitation. The circumferential anti-rotation structure 94 is used to limit the circumferential rotation of the spring lifting movable sleeve 93.

[0084] In this embodiment, the circumferential anti-rotation structure 94 includes a pulley 95 disposed on the spring lifting sleeve 93. The pulley 95 abuts against the housing of the first worm drive 43 of the worm gear reducer 4. The pulley 95 abuts against the housing of the first worm drive 43 to provide anti-rotation support in the horizontal direction. In the vertical direction, the rotation of the pulley 95 ensures good relative lifting.

[0085] In this embodiment, the oscillating assembly 8 includes a second worm driver 81 fixed to the base 1. The base 1 includes a worm gear seat 82. The main shaft 11 is rotatably connected to the worm gear seat 82. The second worm driver 81 is connected to a second worm 84 via a second coupling 83. The second worm 84 is in driving connection with a drive worm gear 85 on the main shaft 11. A second code disk 86 is provided between the second coupling 83 and the second worm 84. The second code disk 86 is fixed to the second worm 84 via a locking nut 48. A second rotation detection assembly 88 is provided on the second driver mounting seat 87 outside the second coupling 83, and the detection end cooperates with the second code disk 86.

[0086] Specifically, the main shaft 11 is vertically rotatably connected to the worm gear seat 82. A drive worm gear 85 is fixed to the main shaft 11. The output end of the second worm driver 81 engages with the drive worm gear 85 through the second worm 84 and the second coupling 83 to achieve the effect of driving the main shaft 11 to rotate. The second code disk 86 and the second rotation detection assembly 88 are used to detect the rotation angle. The second coupling 83 is used to achieve rotational synchronization between the second worm 84 and the output end of the second worm driver 81. The second code disk 86 is secured by a locking nut 48, making it easy to assemble and disassemble. In addition, an observation and maintenance port is provided on the second driver mounting seat 87. Through this observation and maintenance port, the status of the second coupling 63, the second code disk 86, and the U-shaped detection end of the second rotation detection assembly 88 can be observed in real time, which also facilitates the maintenance of the second rotation detection assembly 88. The first code disk, the first rotation detection assembly, and the first driver mounting seat are similarly configured.

[0087] Specific working principle: During operation, the upper swing arm 15 and the lower swing arm 14 rotate in the sock knitting station, and the thread pressing disk and coil thereon cooperate with the needle cylinder to perform specific sock knitting operations. After the sock knitting is completed, the worm gear reducer 4 is actuated to drive the lifting sleeve 12 to move upward, and the sock is pulled out of the needle cylinder. Then the swing assembly 8 is actuated, and the upper swing arm 15 and the lower swing arm 14 are rotated to the front of the turning and sewing station. Then the lifting cylinder 61 extends and the upper swing arm 15 moves upward away from the lower swing arm 14, and the limit rod 52 leaves the limit hole 51. At this time, the circumferential return spring 9 pulls the upper swing arm 15 to rotate further, and the sock enters the turning and sewing station for subsequent turning and sewing work to complete the transfer of the sock.

[0088] Example 2

[0089] The specific working principle of this embodiment is basically the same as that of embodiment 1, and the difference lies in the circumferential anti-rotation structure 94 .

[0090] Specific implementation examples Figure 11 As shown, the circumferential anti-rotation structure 94 includes a limiting ridge 96 axially arranged on the spring fixing column 92 , and a limiting groove 97 cooperating with the limiting ridge 96 is provided on the spring lifting sleeve 93 .

[0091] Specifically, a limiting ridge 96 is directly provided on the spring fixing column 92 , and the rotational limiting of the limiting groove 97 of the spring lifting movable sleeve 93 and the limiting ridge 96 is used to prevent the spring lifting movable sleeve 93 from rotating, and the structure is simple.

[0092] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A swing transfer device for a hosiery machine, comprising a base (1), a main shaft (11) being provided on the base (1), and a swing assembly (8) being provided between the base (1) and the main shaft (11) for driving the main shaft (11) to rotate forward and backward, characterized in that: The main shaft (11) is provided with a lifting sleeve (12), a circumferential positioning structure (3) is provided between the lifting sleeve (12) and the main shaft (11), a rack (13) is provided on the outer wall of the main shaft (11) along its axial direction, the lifting sleeve (12) is provided with a worm gear reducer (4), the first worm wheel (41) of the worm gear reducer (4) is meshed and connected with the rack (13), and the lifting sleeve (12) is provided with a lower swing arm (14) and an upper swing arm ( 15), the lower swing arm (14) is fixedly connected to the lifting sleeve (12), the upper swing arm (15) is movably connected to the lifting sleeve (12), a swing arm synchronous rotation connection component (5) is provided between the upper swing arm (15) and the lower swing arm (14), which can make the upper swing arm (15) and the lower swing arm (14) rotate synchronously and separate, and an upper swing arm sleeve lifting component (6) is provided between the upper swing arm (15) and the lifting sleeve (12), which can make the upper swing arm (15) rise and fall along the axial direction of the lifting sleeve (12); The circumferential positioning structure (3) comprises a sliding groove (31) provided on the lifting sleeve (12) and arranged axially along the main shaft (11); a sliding key (32) is provided on the main shaft (11) and is protruded outward and can slide axially in the sliding groove (31); The worm gear reducer (4) includes a first worm wheel (41) and a first worm (42), the first worm (42) is connected to a first worm driver (43), the first worm wheel (41) is arranged in a worm wheel mounting groove (44) of the lifting sleeve (12) and is rotationally connected to the lifting sleeve (12) through a worm wheel shaft (501), the outer end of the worm wheel mounting groove (44) is closed by a cover plate (45), and the cover plate (45) and the lifting sleeve (12) are detachably fixed; A first auxiliary lifting assembly (7) is provided between the lifting sleeve (12) and the main shaft (11), and the first auxiliary lifting assembly (7) includes a first lifting shaft (71) passing through the center hole (16) of the main shaft (11), the upper end of the first lifting shaft (71) abuts against the inner top surface of the lifting sleeve (12), and a first elastic member (72) is provided between the first lifting shaft (71) and the main shaft (11).

2. The swing transfer device of the hosiery machine according to claim 1, characterized in that: The lifting sleeve (12) is provided with a lower swing arm fixing ring (17), the lower end of the lower swing arm (14) abuts against the annular step (18) of the lower swing arm fixing ring (17) and is fixed by a second detachable structure, an annular gap (19) is provided between the main shaft (11) and the lifting sleeve (12), the upper swing arm (15) is fixed on the upper swing arm mounting sleeve (20), the lower end of the upper swing arm mounting sleeve (20) is open and is sleeved on the lifting sleeve (12) and located in the annular gap (19), and an upper swing arm sleeve lifting assembly (6) is provided between the upper swing arm mounting sleeve (20) and the main shaft (11) to enable the upper swing arm (15) to be lifted and lowered axially along the lifting sleeve (12).

3. The swing transfer device of the hosiery machine according to claim 2, characterized in that: The upper swing arm sleeve lifting assembly (6) includes a lifting cylinder (61) fixed to the top of the upper swing arm mounting sleeve (20), and the output end of the lifting cylinder (61) is connected to the lifting sleeve (12) through a floating joint (68), and the floating joint (68) is coaxially arranged with the main shaft (11).

4. The swing transfer device of the hosiery machine according to claim 2, characterized in that: The lower swing arm (14) is provided with at least one second auxiliary lifting component (62) capable of assisting in lifting the upper swing arm (15) or the upper swing arm mounting sleeve (20); and / or, at least one elastic lifting auxiliary component (24) for assisting in lifting the upper swing arm mounting sleeve (20) is provided between the lifting sleeve (12) and the upper swing arm mounting sleeve (20).

5. The swing transfer device of the hosiery machine according to claim 4, characterized in that: The second auxiliary lifting assembly (62) includes a second push rod mounting hole (63) provided on the lower swing arm (14), a second push rod (64) is provided in the second push rod mounting hole (63), a second elastic member (65) is provided between the second push rod (64) and the second push rod mounting hole (63), the lower end of the second elastic member (65) abuts against the second push rod mounting hole (63), the upper end abuts against the second limiting ring (66) of the second push rod (64), and the second limiting ring (66) abuts against the push rod sealing ring (67), and the push rod sealing ring (67) is fixed to the upper swing arm (15); The swing arm synchronous rotation connection assembly (5) comprises a limiting hole (51) and a limiting rod (52) vertically arranged on the lower swing arm (14) and the upper swing arm (15), respectively, and the limiting rod (52) is inserted into the limiting hole (51).

6. The swing transfer device of the hosiery machine according to claim 1, characterized in that: A circumferential return spring (9) is provided between the upper swing arm (15) and the lower swing arm (14), one end of the circumferential return spring (9) is provided in a spring ring groove (91) of the upper swing arm (15), a spring fixing column (92) is provided at a position deviated from the rotation center of the lower swing arm (14), a spring lifting movable sleeve (93) is provided on the spring fixing column (92), the other end of the circumferential return spring (9) is provided on the spring lifting movable sleeve (93), and a circumferential anti-rotation structure (94) is also provided on the spring lifting movable sleeve (93).

7. The swing transfer device of the hosiery machine according to claim 6, characterized in that: The circumferential anti-rotation structure (94) includes a pulley (95) arranged on the spring lifting movable sleeve (93), and the pulley (95) abuts against the housing of the first worm drive (43) of the worm gear reducer (4); or, the circumferential anti-rotation structure (94) includes a limiting rib (96) arranged axially on the spring fixing column (92), and the spring lifting movable sleeve (93) is provided with a limiting groove (97) that cooperates with the limiting rib (96).

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