Swing lifting mechanism of sock machine

Abstract

The utility model belongs to the technical field of sock machines, and particularly relates to a swing lifting mechanism of a sock machine, which solves the problems of complex structure and high equipment cost. The swing lifting mechanism of the sock machine includes a base, a main shaft is provided on the base, a swing assembly capable of driving the main shaft to rotate forward and reverse 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 arranged along the axial direction is provided on the outer wall of the main shaft, a first worm gear reducer is provided on the lifting sleeve, and the first worm wheel of the first worm gear reducer is meshed and connected with the rack. The utility model realizes lifting drive by cooperating with the rack on the main shaft through the first worm gear reducer, and has a simple structure and considerable equipment cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of sock machines, and particularly relates to a swing lifting 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, 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 with 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. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and proposes a swing lifting mechanism for a sock machine.

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

[0006] A swinging and lifting mechanism of a sock machine comprises a base, a main shaft is arranged on the base, a swinging assembly capable of driving the main shaft to rotate forward and reverse is arranged between the base and the main shaft, a lifting sleeve is sleeved on the main shaft, a circumferential positioning structure is arranged between the lifting sleeve and the main shaft, a rack is arranged along the axial direction on the outer wall of the main shaft, a first worm gear reducer is arranged on the lifting sleeve, and the first worm wheel of the first worm gear reducer is meshed and connected with the rack.

[0007] In the swing lifting mechanism of the utility model, 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 component 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 first worm gear reducer and the rack. The rack is arranged on the side wall of the main shaft. The output end of the first worm gear reducer is meshed with the first worm wheel 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.

[0008] In the swing lifting mechanism of the hosiery machine, 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 are radially opened. 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 swinging and lifting mechanism of the sock machine, the first 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 first 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.

[0011] 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 driver to the main shaft. A cover plate is arranged on the worm gear mounting groove to prevent the entry of foreign matter and impurities and to avoid damage to the first worm gear, the first worm and the rack. The detachable fixing method facilitates the subsequent maintenance and replacement.

[0012] In the swing lifting mechanism of the hosiery machine, a first code disc 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 disc is provided between the first coupling and the first worm, and the first code disc is fixed to the first worm via a locking nut. A first rotation detection component having a detection end that matches the first code disc is provided on the first driver mounting seat outside the first coupling.

[0013] The first code disc and the first rotation detection assembly are used to detect the rotation angle, the first coupling is used to achieve the rotation synchronization between the first worm and the output end of the first worm driver, and the first code disc is fixed by a locking nut for easy disassembly and assembly. The first coupling, the first code disc and the first rotation detection assembly are common knowledge and will not be elaborated in detail.

[0014] In the above-mentioned swinging and lifting mechanism of the sock machine, the swinging assembly includes a second worm drive fixed on the base, the base includes a worm gear seat, the main shaft is rotatably connected to the worm gear seat, the second worm drive is connected to the second worm through a second coupling, and the second worm is connected to the driving worm gear on the main shaft.

[0015] The main shaft is vertically rotatably connected to the worm gear seat, and a driving worm gear is fixed on the main shaft. The output end of the second worm driver is meshed with the driving worm gear through the second worm and the second coupling to achieve the effect of driving the main shaft to rotate. The connection details of the second coupling and the worm gear seat with the main shaft are common knowledge and will not be elaborated in detail.

[0016] In the above-mentioned swinging and lifting mechanism of the sock machine, a second code disc is provided between the second coupling and the second worm, and the second code disc is fixed to the second worm by a locking nut. A second rotation detection component is provided on the second driver mounting seat outside the second coupling, and the detection end cooperates with the second code disc.

[0017] The second code disc and the second rotation detection assembly are used to detect the rotation angle, the second coupling is used to achieve the rotation synchronization between the second worm and the output end of the second worm drive, and the second code disc is fixed by a locking nut for easy disassembly and assembly. The second coupling, the second code disc and the second rotation detection assembly are common knowledge and will not be elaborated in detail.

[0018] In the above-mentioned swing lifting mechanism of the sock 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.

[0019] 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.

[0020] In the swing lifting mechanism of the hosiery 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 sliding key is connected to the main shaft through a first detachable structure. The first detachable structure includes a sliding key installation countersunk hole set on the main shaft, and 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.

[0021] The slide slot is opened through, so that the slide key can be loaded and unloaded through the slide slot and the main shaft. The slide slot does not penetrate axially, so the axial motion path is limited. The first detachable structure fixes the slide key and the main shaft, and the detachability facilitates 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 bolts to fix it to the main shaft without affecting the sliding of the slide key in the slide slot. The exposed part slides in the slide slot to achieve rotation limitation.

[0022] In the swing lifting mechanism of the hosiery machine, an auxiliary lifting assembly is provided between the lifting sleeve and the main shaft. The auxiliary lifting assembly includes a lifting shaft passing through the center hole of the main shaft, the upper end of the lifting shaft abuts against the inner top surface of the lifting sleeve, and a first elastic lifting member is provided between the lifting shaft and the main shaft.

[0023] The auxiliary lifting 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 power consumption, and save costs. The auxiliary lifting assembly pushes the lifting shaft upward through the first elastic lifting member, and the lifting shaft provides an upward elastic thrust to the main shaft to achieve the effect of auxiliary lifting. The structure is simple and the equipment cost is low.

[0024] As an optimization, the first elastic lifting member includes a first lifting spring, the upper end of the first lifting spring abuts against the outer abutment step of the lifting shaft, and the lower end of the first lifting spring abuts against the inner abutment step of the center hole.

[0025] The first elastic lifting member is specifically a first lifting spring, and the inner abutting step and the outer abutting step are circumferentially arranged, and the step surface faces the first elastic lifting member.

[0026] In the swing lifting mechanism of the above-mentioned sock machine, the lifting shaft and the lifting sleeve are arranged coaxially, and a positioning column is provided at the top of the lifting shaft deviating from the rotation center, and a positioning hole is provided on the top surface of the lifting sleeve, and the positioning column is inserted into the positioning hole.

[0027] The positioning column and the positioning hole are both set away from the rotation center, and the two are plugged in for positioning, and the rotation is limited at the same time, so as to ensure the synchronous rotation of the lifting shaft and the lifting sleeve, and the swing control is more accurate.

[0028] In the swing lifting mechanism of the sock machine, the lifting sleeve is provided with an upper swing arm mounting sleeve with an opening at the lower end, and an upper swing arm sleeve lifting assembly is provided between the upper swing arm mounting sleeve and the main shaft.

[0029] The upper swing arm and the lower swing arm are arranged on the lifting sleeve, wherein the upper swing arm is connected to the lifting sleeve through the upper swing arm mounting sleeve to form a rotatable connection that can be relatively close or far away, the upper swing arm mounting sleeve and the lower swing arm are fixedly connected, and the upper swing arm sleeve lifting assembly is used to drive the axial lifting of the upper swing arm relative to the lower swing arm under the cooperation of gravity, so as to achieve the effect of controlling the distance between the upper swing arm and the lower swing arm.

[0030] As an optimization, the lifting sleeve is provided with a lower swing arm fixing ring, 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, 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 mounted on the lifting sleeve and located in the annular gap.

[0031] 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 of the lower swing arm and the side wall of the annular step are exactly engaged, and 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 exactly engaged in the concave stop, and 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 liftably engaged in the annular gap, and the upper swing arm sleeve lifting assembly is used for driving the upper swing arm to move away from and approach to the lower swing arm.

[0032] In the above-mentioned swinging and lifting mechanism of the sock machine, the upper swing arm sleeve lifting assembly includes a lifting cylinder fixed on the upper swing arm mounting sleeve, the driving end of the lifting cylinder passes through the through hole on the top surface of the upper swing arm mounting sleeve and is fixedly connected to the top surface of the lifting sleeve through a floating joint, and the floating joint is arranged coaxially with the main shaft.

[0033] The upper swing arm sleeve lifting assembly is driven by a lifting cylinder. The lifting cylinder can be an air cylinder. The driving end of the lifting cylinder is fixedly connected to the lifting sleeve 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 cylinder driving end, 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 portion 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 to form an axial limit by the limiting portion, which is convenient for disassembly and assembly.

[0034] In the above-mentioned swing lifting mechanism of the sock machine, an elastic member is provided between the upper swing arm mounting sleeve and the main shaft.

[0035] The elastic member can be specifically a mold spring, which 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 member is adapted to the inner diameter of the positioning ring. The lower end of the elastic member is just stuck in the positioning ring, which is used for positioning on the one hand and for preventing the elastic member from wearing out prematurely on the other hand.

[0036] Compared with the prior art, the utility model mainly has the following advantages:

[0037] 1. In the swing lifting mechanism of the utility model, 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 lifting action of the lifting sleeve is realized by the cooperation of the first worm gear reducer and the rack. The rack is arranged on the side wall of the main shaft. The output end of the first worm gear reducer is meshed with the first worm wheel 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.

[0038] 2. The tooth grooves are axially distributed on the outer wall of the main shaft and radially opened, and 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.

[0039] 3. 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 limitation of the axial motion path. The first 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 limitation.

[0040] 4. The auxiliary lifting 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 power consumption, and save costs. The auxiliary lifting assembly provides an upward elastic thrust to the main shaft through the first elastic lifting member to achieve the effect of auxiliary lifting, with a simple structure and low equipment cost.

[0041] 5. The upper swing arm and the lower swing arm are arranged on the lifting sleeve, wherein the upper swing arm is rotatably connected to the lifting sleeve through the upper swing arm mounting sleeve so as to be relatively close or far away, the upper swing arm mounting sleeve and the lower swing arm are fixedly connected, and the upper swing arm sleeve lifting assembly is used to drive the axial lifting of the upper swing arm relative to the lower swing arm with the cooperation of the gravity of the upper swing arm, so as to achieve the effect of controlling the distance between the upper swing arm and the lower swing arm.

[0042] 6. The elastic part can specifically be a mold spring. The mold spring has a rectangular cross-section and a high compression ratio. The upper and lower ends thereof 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 installed thereon, reduce the load on the lifting cylinder, and reduce the driving cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0044] Figure 2 It is a cross-sectional schematic diagram provided by the utility model;

[0045] Figure 3 It is a rear view schematic diagram provided by the utility model;

[0046] Figure 4 yes Figure 3 Schematic diagram of the cross section at AA in the middle;

[0047] Figure 5 It is a structural schematic diagram of the main shaft provided by the utility model;

[0048] Figure 6 It is a structural schematic diagram of the lifting sleeve provided by the utility model;

[0049] Figure 7 It is a structural schematic diagram of the jacking shaft provided by the utility model;

[0050] Figure 8 It is a cross-sectional schematic diagram of the lifting sleeve provided by the utility model and the first worm gear reducer thereon.

[0051] In the figure, the base 1, the swing assembly 11, the second worm driver 12, the worm gear seat 13, the second worm gear 14, the second worm 15, the second coupling 16, the second code disc 17, the second rotation detection assembly 18, the second driver mounting seat 19,

[0052] Spindle 2, rack 21, tooth groove 22, convex tooth 23, driving worm wheel 24, center hole 25,

[0053] Lifting sleeve 3, upper swing arm 31, upper swing arm mounting sleeve 32, lower swing arm 33, lower swing arm fixing ring 34, annular step 35, annular gap 36,

[0054] Circumferential positioning structure 4, slide groove 41, slide key 42, first detachable structure 43, slide key mounting countersunk hole 44,

[0055] Auxiliary lifting assembly 5, lifting shaft 51, first elastic lifting member 52, inner abutting step 53, outer abutting step 54, positioning column 55, positioning hole 56,

[0056] The first worm gear reducer 6, the first worm wheel 61, the first worm 62, the first worm driver 63, the worm wheel mounting groove 64, the cover plate 65, the first code disc 66, the first coupling 67, the locking nut 68, the first rotation detection component 69, the first driver mounting seat 70,

[0057] Swing arm synchronous rotation connection component 7,

[0058] Upper swing arm sleeve lifting assembly 8, lifting cylinder 81, floating joint 82, joint limiting hole 83, limiting part 84, elastic member 85, positioning ring 86. DETAILED DESCRIPTION

[0059] 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.

[0060] Specific implementation examples Figure 1-8 As shown, the swing lifting mechanism of the sock machine includes a base 1, a main shaft 2 is provided on the base 1, a swing component 11 capable of driving the main shaft 2 to rotate forward and reverse is provided between the base 1 and the main shaft 2, a lifting sleeve 3 is provided on the main shaft 2, a circumferential positioning structure 4 is provided between the lifting sleeve 3 and the main shaft 2, a rack 21 arranged along the axial direction is provided on the outer wall of the main shaft 2, a first worm gear reducer 6 is provided on the lifting sleeve 3, and the first worm wheel 61 of the first worm gear reducer 6 is meshed and connected with the rack 21.

[0061] Specifically, the lifting sleeve 3 is sleeved on the main shaft 2, and the circumferential positioning structure 4 is used to limit the circumferential relative rotation without affecting the axial relative movement. The main shaft 2 is rotatably connected to the base 1 and driven to rotate by the swing assembly 11 to achieve the effect of controlling the swinging rotation of the lifting sleeve 3. The lifting and lowering action of the lifting sleeve 3 is achieved by the cooperation of the first worm gear reducer 6 and the rack 21. The rack 21 is arranged on the side wall of the main shaft 2. The output end of the first worm gear reducer 6 is meshed with the rack 21 through the first worm wheel 61 to achieve the effect of controlling the axial movement of the lifting sleeve on the main shaft 2. The structure is simple and the driving effect is good.

[0062] like Figure 2 , 5 As shown, a plurality of tooth grooves 22 evenly distributed along the axial direction are provided on the outer wall of the main shaft 2 , a convex tooth 23 is formed between two adjacent tooth grooves 22 , and all the convex teeth 23 and the tooth grooves 22 form a rack 21 .

[0063] Specifically, the tooth grooves 22 are axially distributed on the outer wall of the main shaft 2 and radially opened, and protruding convex teeth 23 are formed between adjacent tooth grooves 22. The convex teeth 23 and the tooth grooves 22 constitute the rack 21, which is easy to process. The convex teeth 23 are an integral part of the main shaft 2 and have excellent structural strength.

[0064] like Figure 2 , 6As shown in Figures 8 and 9, the first worm gear reducer 6 includes a first worm wheel 61 and a first worm 62. The first worm 62 is connected to a first worm driver 63. The first worm wheel 61 is arranged in a worm wheel mounting groove 64 of the lifting sleeve 3 and is rotationally connected to the lifting sleeve 3 through the first worm wheel 61 shaft. The outer end of the worm wheel mounting groove 64 is closed by a cover plate 65, and the cover plate 65 is detachably fixed to the lifting sleeve 3. A first code disk 66 is arranged between the first worm driver 63 and the first worm 62. The first worm driver 63 is connected to the first worm 62 through a first coupling 67. A first code disk 66 is arranged between the first coupling 67 and the first worm 62, and the first code disk 66 is fixed to the first worm 62 through a locking nut 68. A first rotation detection component 69 whose detection end matches the first code disk 66 is arranged on the first driver mounting seat 70 outside the first coupling 67.

[0065] Specifically, the first worm wheel 61 is rotatably connected to the lifting sleeve 3, the first worm 62 and the first worm wheel 61 realize the transmission from the first worm driver 63 to the main shaft 2, and a cover plate 65 is provided on the worm wheel mounting groove 64 to prevent foreign matter and impurities from entering and to avoid damage to the first worm wheel 61, the first worm 62 and the rack 21. The detachable fixing method facilitates subsequent maintenance and replacement. The first code disc 66 and the first rotation detection assembly 69 are used to detect the rotation angle, and the first coupling 67 is used to realize the rotation synchronization between the first worm 62 and the output end of the first worm driver 63. The first code disc 66 is fixed by a locking nut 68, which is convenient for disassembly and assembly.

[0066] In this embodiment, the swing assembly 11 includes a second worm driver 12 fixed on the base 1, the base 1 is a worm gear seat 13, the main shaft 2 is rotatably connected to the worm gear seat 13, the second worm driver 12 is connected to the second worm 15 through a second coupling 16, and the second worm 15 is drivingly connected to the driving worm wheel 24 on the main shaft 2. A second code disc 17 is provided between the second coupling 16 and the second worm 15, and the second code disc 17 is fixed to the second worm 15 through a locking nut, and a second rotation detection assembly 18 whose detection end cooperates with the second code disc 17 is provided on the second driver mounting seat 19 outside the second coupling 16.

[0067] Specifically, the main shaft 2 is vertically rotatably connected to the worm gear seat 13, a driving worm gear 24 is fixed on the main shaft 2, and the output end of the second worm driver 12 is meshed with the driving worm gear 24 through the second worm 15 and the second coupling 16 to achieve the effect of driving the main shaft 2 to rotate. The second code disc 17 and the second rotation detection assembly 18 are used to detect the rotation angle, the second coupling 16 is used to achieve the rotation synchronization between the second worm 15 and the output end of the second worm driver 12, and the second code disc 17 is fixed by a locking nut, which is convenient for disassembly and assembly.

[0068] As a further optimization of this embodiment, the second rotation detection assembly 18 is a photoelectric sensor, which is fixed to the outer wall of the second driver mounting seat 19 by bolts, and its U-shaped detection end passes through the outer wall of the second driver mounting seat 19 and extends into the interior, and the teeth on the outer periphery of the second code disc 17 are located in the U-shaped detection end. The second rotation detection assembly 18 detects the speed of the second worm 15 by detecting the passing rate of the teeth in the U-shaped detection end. In addition, an observation and maintenance port is also provided on the second driver mounting seat 19, through which the states of the second coupling 16, the second code disc 17 and the U-shaped detection end of the second rotation detection assembly 18 can be observed in real time, and the maintenance of the second rotation detection assembly 18 can also be facilitated. In addition, the first code disc 66, the first rotation detection assembly 69, and the first driver mounting seat 70 are arranged in the same manner.

[0069] like Figure 1 , 2 As shown in Figures 5 and 6, the circumferential positioning structure 4 includes a slide groove 41 arranged on the lifting sleeve 3 along the axial direction of the main shaft 2, and a slide key 42 is provided on the main shaft 2, which protrudes outward and can slide axially in the slide groove 41. 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. The slide key 42 is connected to the main shaft 22 through a first detachable structure 43. The first 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.

[0070] 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 does not penetrate axially, so the axial motion path is limited. The first 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.

[0071] like Figure 2 , 7As shown, an auxiliary lifting assembly 5 is provided between the lifting sleeve 3 and the main shaft 2, and the auxiliary lifting assembly 5 includes a lifting shaft 51 that passes through the center hole 25 of the main shaft 2, and the upper end of the lifting shaft 51 abuts against the inner top surface of the lifting sleeve 3. A first elastic lifting member 52 is sleeved on the lifting shaft 51, and the first elastic lifting member 52 is a first lifting spring. The upper end of the first elastic lifting member 52 abuts against the outer abutting step 54 of the lifting shaft 51, and the lower end abuts against the inner abutting step 53 of the center hole 25. The lifting shaft 51 is coaxially arranged with the lifting sleeve 3, and a positioning column 55 is provided at the top of the lifting shaft 51 deviating from the rotation center. A positioning hole 56 is provided on the top surface of the lifting sleeve 3, and the positioning column 55 is inserted into the positioning hole 56.

[0072] Specifically, the auxiliary lifting assembly 5 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 first worm drive 63 and reduce the driving cost. The auxiliary lifting assembly 5 provides an upward elastic thrust to the main shaft 2 through the first elastic lifting member 52 to achieve the effect of auxiliary lifting. It has a simple structure and low equipment cost. The inner abutment step 53 and the outer abutment step 54 are arranged circumferentially, and the step surface faces the first elastic lifting member 52. The positioning column 55 and the positioning hole 56 are both set away from the rotation center. The two are plugged in and positioned, and the rotation is limited at the same time to ensure that the rotation of the lifting shaft 51 and the lifting sleeve 3 is synchronized, and the swing control is more accurate.

[0073] In this embodiment, an upper swing arm mounting sleeve 32 with an opening at the lower end is sleeved on the lifting sleeve 3, and an upper swing arm sleeve lifting assembly 8 is provided between the upper swing arm mounting sleeve 32 and the main shaft 2. The upper swing arm sleeve lifting assembly 8 includes a lifting cylinder 81 fixed on the upper swing arm mounting sleeve 32, and the driving end of the lifting cylinder 81 passes through a through hole on the top surface of the upper swing arm mounting sleeve 32 and is fixedly connected to the top surface of the lifting sleeve 3 through a floating joint 82. An elastic member 85 is provided between the upper swing arm mounting sleeve 32 and the main shaft 2, and a swing arm synchronous rotation connection assembly 7 is also provided between the lower swing arm 33 and the upper swing arm 31.

[0074] Specifically, the upper swing arm 31 and the lower swing arm 33 are arranged on the lifting sleeve 3, and the swing arm synchronous rotation connection component 7 is used to form rotation synchronization between the upper swing arm 31 and the lower swing arm 33. The swing arm synchronous rotation connection component 7 is specifically realized by a limit rod and a limit hole respectively arranged on the upper swing arm 31 and the lower swing arm 33. A wire pressing disk is arranged at the front end of the upper swing arm 31, and a coil is arranged at the front end of the lower swing arm 33. The upper swing arm 31 is connected to the lifting sleeve 3 through the upper swing arm mounting sleeve 32 so as to be relatively close to or away from the lifting sleeve 3. The upper swing arm mounting sleeve 32 and the lower swing arm 33 are fixedly connected. The upper swing arm sleeve lifting component 8 is used to drive the axial lifting of the upper swing arm 31 relative to the lower swing arm 33 under the cooperation of its own gravity, so as to realize the control of the upper In order to achieve the effect of the distance between the swing arm 31 and the lower swing arm 33, the lifting cylinder 81 is a pneumatic cylinder, and the driving end of the lifting cylinder 81 is fixedly connected to the lifting sleeve 3 to realize the lifting and lowering control of the upper swing arm 31 relative to the lower swing arm 33. The fixed connection is specifically realized by a floating joint 82. The threaded section at the upper end of the floating joint 82 is screwed and fixed to the connecting screw hole of the driving end of the lifting cylinder 81, and the lower end is clamped in the joint limiting hole 83 on the top surface of the lifting sleeve 3. The joint limiting hole 83 includes a strip section and a circular section that are integrally connected. The width of the strip section is adapted to the outer diameter of the limiting groove at the lower end of the floating joint 82, and the inner diameter of the circular section is larger than the outer diameter of the limiting portion 84 at the lower end of the floating joint 82. The limiting groove of the floating joint 82 is clamped from the circular section into the straight section for axial limitation. The driving end of the floating joint 82 and the lifting cylinder 81 are inserted into the elastic member 85. The elastic member 85 is a mold spring, and its upper and lower ends are respectively against the inner top surface of the upper swing arm mounting sleeve 32 and the upper end surface of the lifting sleeve 3, which is used to balance the gravity of the upper swing arm mounting sleeve 32 and the upper swing arm 31 mounted thereon, reduce the load of the lifting cylinder 81, and reduce the driving cost. In addition, a positioning ring 86 is provided at the top of the lifting sleeve 3. The outer diameter of the elastic member 85 is adapted to the inner diameter of the positioning ring 86. The lower end of the elastic member 85 is just stuck in the positioning ring 86, which is used for positioning on the one hand and for preventing premature wear on the other hand.

[0075] As an optimization of this embodiment, a lower swing arm fixing ring 34 is provided on the lifting sleeve 3, the lower end of the lower swing arm 33 rests on the annular step 35 of the lower swing arm fixing ring 34 and is fixed by a second detachable structure, an annular gap 36 is provided between the main shaft 2 and the lifting sleeve 3, the upper swing arm 31 is fixed on the upper swing arm mounting sleeve 32, the lower end of the upper swing arm mounting sleeve 32 is open and is sleeved on the lifting sleeve 3 and located in the annular gap 36.

[0076] Specifically, a lower swing arm fixing ring 34 is provided at the upper end of the lifting sleeve 3, and the lower swing arm 33 rests on the lower swing arm fixing ring 34, and the lower swing arm through hole of the lower swing arm 33 and the side wall of the annular step 35 are exactly engaged, and a concave stop is provided at the lower end of the upper swing arm through hole, and an annular step 35 is circumferentially provided on the side wall of the upper swing arm mounting sleeve 32, and the annular step 35 is exactly engaged in the concave stop, and the bolt serves as a second detachable structure to fix the lower swing arm 33 and the lifting sleeve 3, and the upper swing arm mounting sleeve 32 is rotatably and liftably engaged in the annular gap 36, and the upper swing arm sleeve lifting assembly 8 is used to drive the upper swing arm 31 to move away from and approach the lower swing arm 33.

[0077] Specific working principle: during operation, the upper swing arm 31 and the lower swing arm 33 rotate in the sock knitting station, and the thread pressing disk and the coil thereon cooperate with the needle cylinder to perform specific sock knitting operations. After the sock knitting is completed, the first worm gear reducer 6 is actuated to drive the lifting sleeve 3 to move upward, and the sock is pulled out of the sock tube. Then the swing assembly 11 is actuated, and the upper swing arm 31 and the lower swing arm 33 rotate to the front of the turning over and sewing head station to complete the transfer of the sock.

[0078] 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 swing lifting mechanism for a sock machine, comprising a base (1), a main shaft (2) being arranged on the base (1), a swing assembly (11) being arranged between the base (1) and the main shaft (2) and capable of driving the main shaft (2) to rotate forward and reverse, characterized in that: A lifting sleeve (3) is sleeved on the main shaft (2), a circumferential positioning structure (4) is provided between the lifting sleeve (3) and the main shaft (2), a rack (21) is provided on the outer wall of the main shaft (2) and is arranged along its axial direction, a first worm gear reducer (6) is provided on the lifting sleeve (3), and a first worm wheel (61) of the first worm gear reducer (6) is meshed and connected with the rack (21).

2. The swing lifting mechanism of the sock machine according to claim 1, characterized in that: The outer wall of the main shaft (2) is provided with a plurality of tooth grooves (22) evenly distributed along its axial direction, a convex tooth (23) is formed between two adjacent tooth grooves (22), and all the convex teeth (23) and tooth grooves (22) form the rack (21).

3. The swing lifting mechanism of the sock machine according to claim 1 or 2, characterized in that: The first worm gear reducer (6) comprises a first worm wheel (61) and a first worm (62), wherein the first worm (62) is connected to a first worm driver (63), the first worm wheel (61) is arranged in a worm wheel mounting groove (64) of the lifting sleeve (3) and is rotationally connected to the lifting sleeve (3) via the first worm wheel (61) shaft, the outer end of the worm wheel mounting groove (64) is closed by a cover plate (65), and the cover plate (65) is detachably fixed to the lifting sleeve (3).

4. The swing lifting mechanism of the sock machine according to claim 3, characterized in that: The first worm drive (63) is connected to the first worm (62) via a first coupling (67); a first code disc (66) is provided between the first coupling (67) and the first worm (62); the first code disc (66) is fixed to the first worm (62) via a locking nut; a first rotation detection component (69) having a detection end that cooperates with the first code disc (66) is provided on the first drive mounting seat (70) outside the first coupling (67).

5. The swing lifting mechanism of the sock machine according to claim 1 or 2, characterized in that: The swing assembly (11) includes a second worm drive (12) fixed on a base (1), the base (1) includes a worm gear seat (13), the main shaft (2) is rotatably connected to the worm gear seat (13), the second worm drive (12) is connected to the second worm (15) via a second coupling (16), and the second worm (15) is drivingly connected to a driving worm gear (24) on the main shaft (2).

6. The swing lifting mechanism of the sock machine according to claim 5, characterized in that: A second code disc (17) is provided between the second coupling (16) and the second worm (15), and the second code disc (17) is fixed to the second worm (15) by a locking nut. A second rotation detection component (18) having a detection end that cooperates with the second code disc (17) is provided on a second driver mounting seat (19) outside the second coupling (16).

7. The swing lifting mechanism of the sock machine according to claim 1 or 2, characterized in that: The circumferential positioning structure (4) comprises a slide groove (41) arranged on the lifting sleeve (3) and axially arranged along the main shaft (2), and a sliding key (42) is provided on the main shaft (2) and protrudes outward and can slide axially in the slide groove (41).

8. The swing lifting mechanism of the sock machine according to claim 7, 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 the first detachable structure (43).

9. The swing lifting mechanism of the sock machine according to claim 1 or 2, characterized in that: An auxiliary lifting assembly (5) is provided between the lifting sleeve (3) and the main shaft (2), and the auxiliary lifting assembly (5) includes a lifting shaft (51) passing through the center hole (25) of the main shaft (2), the upper end of the lifting shaft (51) abuts against the inner top surface of the lifting sleeve (3), and a first elastic lifting member (52) is provided between the lifting shaft (51) and the main shaft (2).

10. The swing lifting mechanism of the sock machine according to claim 9, characterized in that: The lifting shaft (51) is coaxially arranged with the lifting sleeve (3), and a positioning column (55) is provided at the top end of the lifting shaft (51) deviating from the rotation center. A positioning hole (56) is provided on the top surface of the lifting sleeve (3), and the positioning column (55) is inserted into the positioning hole (56).

11. The swing lifting mechanism of the sock machine according to claim 1 or 2, characterized in that: The lifting sleeve (3) is sleeved with an upper swing arm installation sleeve (32) with an opening at the lower end, and an upper swing arm sleeve lifting component (8) is provided between the upper swing arm installation sleeve (32) and the main shaft (2).

12. The swing lifting mechanism of the sock machine according to claim 11, characterized in that: The upper swing arm sleeve lifting assembly (8) comprises a lifting cylinder (81) fixed to the top of the upper swing arm mounting sleeve (32); the driving end of the lifting cylinder (81) passes through a through hole on the top surface of the upper swing arm mounting sleeve (32) and is fixedly connected to the top surface of the lifting sleeve (3) through a floating joint (82); and the floating joint (82) is coaxially arranged with the main shaft (2).

13. The swing lifting mechanism of the sock machine according to claim 12, characterized in that: An elastic member (85) is provided between the upper swing arm mounting sleeve (32) and the main shaft (2).

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