CN215366252U

CN215366252U - Single-needle sewing structure for sock head of hosiery machine

Info

Publication number: CN215366252U
Application number: CN202121483931.3U
Authority: CN
Inventors: 吕康康
Original assignee: Dongyang Gaoshan Knitting Co ltd
Current assignee: Dongyang Gaoshan Knitting Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-12-31
Anticipated expiration: 2031-07-01

Abstract

The utility model discloses a sock head single-needle sewing structure of a sock knitting machine, which comprises the sock knitting machine, a head sewing machine, a rack, a lead screw, a motor, a supporting plate and an upper clamping assembly, wherein the rack is fixedly connected with the upper clamping assembly; a lower clamping assembly; one end of the sewing machine is provided with a plurality of rotating wheels; the upper clamping assembly comprises a sliding seat, a first air cylinder, a clamping block, a second air cylinder, a connecting rod and an upper clamping piece; a trapezoidal block is connected between the connecting rods symmetrically arranged between the two clamping blocks in a sliding manner; according to the utility model, the upper clamping component is arranged between the sock knitting machine and the toe sewing machine, the second air cylinder is utilized to drive the two trapezoidal blocks to be inserted into the sock, then the first air cylinder drives the two clamping blocks to be close to each other, so that the two trapezoidal blocks pull the toe part to be tightened, then the upper clamping piece compresses the sock, the sliding seat slides to be close to the toe sewing machine along the screw rod, the lower clamping component stably clamps the sock during the period, and the sock is conveyed to the toe sewing machine from the rotating wheel to complete toe sewing, so that the sock knitting machine does not need to stand by in the toe sewing process, and the production efficiency is improved.

Description

Single-needle sewing structure for sock head of hosiery machine

Technical Field

The utility model belongs to the field of sock production, and particularly relates to a single-needle sewing structure for a sock head of a sock knitting machine.

Background

The special production equipment is often needed to be used in the sock production process, the sewing and turning integrated sock machine is applied to increase the sock production speed, the sock production speed can be greatly increased, and the jacquard process is needed to be added in the sock production process to ensure the attractive appearance of the socks. Therefore, another set of needle selectors arranged in reverse must be added on the basis of the traditional six sets of needle selectors to carry out jacquard processing in the sock production process, which is called a stitch-turn integrated hosiery machine.

The jacquard process is added, so that the production speed of the socks is influenced, the traditional sock sewing and turning integrated hosiery machine moves the sock sewing device to the top end of the sock knitting device after the sock knitting device produces the socks which are not sewn, the head of the socks is sewn, the sock knitting device is always in a standby state in the process, the next group of socks cannot be immediately produced, and the sock production process is greatly reduced. And because traditional knit sew and turn over integrative hosiery machine is difficult to guarantee that the socks head is in the tensile state when sewing up the socks head, it is relatively poor to sew up the effect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a single-needle sewing structure for the toe of a hosiery machine, which can improve the production efficiency and overcome the defects of the prior art.

The technical scheme provided by the utility model is as follows: a sock head single-needle sewing structure of a sock knitting machine comprises the sock knitting machine, a head sewing machine located on one side of the sock knitting machine, a rack located between the sock knitting machine and the head sewing machine, two lead screws rotatably connected to two sides of the rack, a motor installed on the rack and used for driving the lead screws, a supporting plate arranged on the rack, an upper clamping assembly connected to the rack in a sliding manner, a lower clamping assembly connected to the supporting plate in a sliding manner, and a plurality of rotating wheels arranged at one end, close to the sock knitting machine, of the head sewing machine; the upper clamping assembly comprises two sliding seats arranged on the two screw rods, a first air cylinder fixed on the side of the sliding seats, a clamping block arranged at the movable end of the first air cylinder, a second air cylinder arranged at the top of the sliding seats, two connecting rods rotatably connected to one end of the clamping block, and an upper clamping piece arranged at the bottom of the clamping block; the ends of the two connecting rods which are respectively and symmetrically connected between the two clamping blocks are mutually and rotatably connected; a trapezoidal block is connected between the connecting rods symmetrically arranged between the two clamping blocks in a sliding manner; one end of the clamping block can slide up and down in the sliding seat; the trapezoidal block is positioned above the upper clamping piece.

After the socks are woven and formed on the hosiery machine, the socks are moved out of the top of the hosiery machine, the second air cylinder drives the connecting rods to move downwards, the trapezoidal blocks are inserted into the heads of the socks, then the first air cylinder drives the two clamping blocks to be close to each other, so that the connecting rods rotate, the two trapezoidal blocks are far away from each other, the heads of the socks are spread, the upper clamping piece is in contact with the socks and pushes the trapezoidal blocks to move upwards to be separated from the socks, and the heads of the socks stretched on the upper clamping piece are compressed, so that the work of the head sewing machine is facilitated; then the motor drives the lead screw to move, the sliding seat moves along with the lead screw, and the socks are pulled to be close to the head sewing machine; after the socks break away from the hosiery machine, the lower clamping component clamps the lower parts of the socks, and guarantees that the socks are not extruded by the rotating wheels to deform after moving between the rotating wheels, thereby guaranteeing that the socks do not wrinkle when the sewing machine works. In the moving process of the socks, the sock knitting machine can work continuously without standby, so that the processing efficiency of the equipment is improved.

Furthermore, the upper clamping piece comprises a pressing plate, a plurality of connecting rods arranged at one end of the pressing plate and a first spring sleeved outside the connecting rods; the connecting rod is inserted in the clamping block; the first spring is positioned between the clamping block and the pressing plate; after the trapezoidal piece stretches the sock head, the pressing plate contacts the sock along with the movement of the clamping block, the trapezoidal piece is pushed to move upwards to the inside of the separated sock, the sock is compacted by the pressure of the first spring, the sock head can keep the shape when the follow-up sock enters the head sewing machine, the sock head cannot be completely sewn when the sock head is too large in the gap, and the normal work of the head sewing machine is ensured.

Furthermore, a first magnetic block is arranged at the bottom of the sliding seat; two guide grooves are symmetrically arranged on two sides of the middle part of the supporting plate; the lower clamping assembly comprises two lower clamping pieces symmetrically arranged between the two guide grooves, a through hole arranged at the bottom of each lower clamping piece, a guide rod inserted between the two lower clamping pieces and a sliding rod arranged on one side of each lower clamping piece; the guide rod comprises a first rod piece inserted in one of the through holes, a through rod arranged on the first rod piece, a second rod piece inserted in the other through hole and a through rod arranged outside the second rod piece; one end of the penetrating rod penetrates through the penetrating rod and is inserted into the second rod piece; the piercing member is inserted into the first rod member; a second spring is respectively arranged between the first rod piece and the piercing rod as well as between the piercing rod and the second rod piece; the end parts of the first rod piece, namely the second rod piece are respectively contacted with the two guide grooves; one end of the sliding rod is opposite to the first magnetic block.

The sock is kept vertical under the action of gravity after being separated from a hosiery machine along with the movement of the sliding seat, after the sock moves between the two lower clamping pieces, the first magnetic block contacts the sliding rod and pushes the lower clamping pieces to slide together, the first rod piece, namely the first rod piece, moves along with the first rod piece, the end parts of the first rod piece and the second rod piece are in contact with the side wall of the corresponding guide groove when the first rod piece and the second rod piece slide, the two lower clamping pieces mutually clamp the sock falling between the two lower clamping pieces, and the surface of the sock is kept flat when the sock moves between the rotating wheels.

Furthermore, a rotating plate is rotatably connected to the lower clamping piece, and a torsion spring is arranged between the rotating plate and the lower clamping piece; through the arrangement of the rotating plates, before the two lower clamping pieces press the socks, the two rotating plates rotate after contacting the socks and pull the socks to stretch the socks flatly, so that the socks are kept flat when entering the head sewing machine, and the phenomenon that the sewing position generates wrinkles when the socks are loosened and the socks are sewn is avoided.

Furthermore, the two guide grooves are respectively provided with a straight groove; a short rack is arranged in one of the straight grooves; the bottom of the clamping piece is provided with a round hole; a cam seat is arranged in the round hole; the top of the cam seat is provided with an opening; a round rod is inserted into the round hole; the round rod is connected with a cam in a sliding manner; one end of the cam is provided with a second magnetic block; the cam is positioned in the cam seat; the end part of the rotating plate is inserted with an inserting block; the bottom of the inserting block is inserted into the opening; the inserting block is connected in the rotating plate in a sliding manner; two ends of the round rod are respectively provided with a limiting piece; an unlocking gear is connected outside one of the limiting pieces; a one-way bearing is arranged between the unlocking gear and the limiting piece; the limiting piece is positioned in the straight groove; the unlocking gear can be meshed with the short rack.

When the clamping piece moves under the slide promotes, the gear that unblanks moves to with the meshing of end rack, and the subassembly of unblanking is rotatory to drive round bar and cam and rotate, and then make the cam rotate to the top and contact with the inserted block, promote the inserted block and break away from the opening, the lower rotating plate rotates to the tilt state under the torsional spring effect, so that follow-up stretch socks flatly.

In conclusion, the upper clamping assembly is arranged between the sock knitting machine and the toe sewing machine, the second air cylinder is used for driving the two trapezoidal blocks to be inserted into the socks, then the first air cylinder drives the two clamping blocks to be close to each other, so that the two trapezoidal blocks pull the toe part to be tightened, then the upper clamping piece tightly presses the socks, the sliding seat slides to be close to the toe sewing machine along the screw rod, the lower clamping assembly stably clamps the socks in the period, and the socks are conveyed to the toe sewing machine from the rotating wheel to finish toe sewing, so that the sock knitting machine does not need to stand by in the toe sewing process, and the production efficiency is improved; the upper clamping piece compresses the head of the sock after the trapezoid block is pulled, so that the head of the sock is in a stretching state, and the sewing effect of the head sewing machine is guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic structural view of the upper clamping assembly in fig. 1.

Fig. 4 is a partially enlarged view of a portion B in fig. 3.

Fig. 5 is a schematic cross-sectional view of the frame and the lower clamping assembly shown in fig. 1.

Fig. 6 is a partially enlarged view of a portion C in fig. 5.

Fig. 7 is a schematic cross-sectional view of the lower clamping assembly of fig. 1.

FIG. 8 is a cross-sectional view of the lower clamping assembly of FIG. 1 from another perspective.

Fig. 9 is a partially enlarged view of a portion D in fig. 8.

Fig. 10 is a schematic structural view of the round bar of fig. 5.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-10, a sock head single needle sewing structure of a sock knitting machine 1 comprises a sock knitting machine 1, a head sewing machine 2 located at one side of the sock knitting machine 1, a frame 3 located between the sock knitting machine 1 and the head sewing machine 2, two lead screws 4 rotatably connected to two sides of the frame 3, a motor 5 installed on the frame 3 for driving the lead screws 4, a supporting plate 6 arranged on the frame 3, an upper clamping component 7 slidably connected to the frame 3, a lower clamping component 8 slidably connected to the supporting plate 6, and a plurality of rotating wheels 9 arranged at one end of the head sewing machine 2 close to the sock knitting machine 1; the upper clamping assembly 7 comprises two sliding seats 71 arranged on the two screw rods 4, a first air cylinder 72 fixed on the side of the sliding seats 71, a clamping block 73 arranged at the movable end of the first air cylinder 72, a second air cylinder 74 arranged at the top of the sliding seats 71, two connecting rods 75 rotatably connected to one end of the clamping block 73, and an upper clamping piece 76 arranged at the bottom of the clamping block 73; the ends of the two connecting rods 75 which are respectively and symmetrically connected between the two clamping blocks 73 are mutually and rotatably connected; a trapezoidal block 77 is connected between the connecting rods 75 symmetrically arranged between the two clamping blocks 73 in a sliding way; one end of the clamping block 73 can slide up and down in the sliding seat 71; the trapezoidal blocks 77 are located above the upper clamping member 76; the upper clamping piece 76 comprises a pressing plate 761, a plurality of connecting rods 762 arranged at one end of the pressing plate 761, and a first spring 763 sleeved outside the connecting rods 762; the connecting rod 762 is inserted into the clamping block 73; the first spring 763 is located between the clamp block 73 and the platen 761.

The main body structures of the sock knitting machine 1 and the wind head machine are the same as those of the prior art; after the sock knitting machine 1 finishes sock knitting, the head of the sock extends out of the discharging position at the top of the sock knitting machine 1, the second air cylinder 74 pushes the clamping block 73 connected with the second air cylinder to move downwards, and the trapezoidal block 77 is inserted into the head of the sock; the first cylinder 72 draws the two gripping blocks 73 towards each other, the presser 761 contacts the sock and presses the trapezoidal block 77 upwards, the trapezoidal block 77 exits the sock and the presser 761 then presses the sock under the action of the first spring 763; the motor 5 drives the screw rod 4 to rotate, so as to enable the sliding seat 71 arranged on the corresponding screw rod 4 to slide, thereby completing the conveying of the socks from the hosiery machine 1 to the toe sewing machine 2; the rotating wheels 9 are rotatably connected to the head sewing machine 2 in two rows, socks are conveyed between the two rows of rotating wheels 9, the rotating wheels 9 are driven to rotate through an existing driving piece, so that the socks and the socks move in the head sewing machine 2 and the head sewing is completed, and the driving piece is a combination of a conventional motor 5 and a belt and is not shown in the attached drawings of the specification; the connecting rod 762 is provided so that the pressing plate 761 can smoothly slide with respect to the clamp block 73.

Further, a first magnetic block 78 is arranged at the bottom of the sliding seat 71; two guide grooves 61 are symmetrically arranged on two sides of the middle part of the supporting plate 6; the lower clamping assembly 8 comprises two lower clamping pieces 81 symmetrically arranged between the two guide grooves 61, a through hole 811 arranged at the bottom of the lower clamping piece 81, a guide rod 82 inserted between the two lower clamping pieces 81, and a sliding rod 83 arranged at one side of the lower clamping piece 81; the guide rod 82 comprises a first rod 821 inserted in one of the through holes 811, a through rod 822 arranged on the first rod 821, a second rod 823 inserted in the other through hole 811, and a through hole 811 rod arranged outside the second rod 823; one end of the penetrating rod 822 penetrates through the penetrating hole 811 rod and is inserted into the second rod member 823; the through hole 811 rod is inserted inside the first rod 821; a second spring 825 is respectively arranged between the first rod 821 and the through hole 811, and between the through rod 822 and the second rod 823; the ends of the first rod 821 and the second rod 823 respectively contact the two guide grooves 61; one end of the sliding rod 83 is opposite to the first magnetic block 78.

In the process of conveying socks, the sliding seat 71 contacts the sliding rod 83 and pushes the sliding rod 83 to move simultaneously, when the sliding seat 71 returns to return to reset after the socks are conveyed, the first magnetic block 78 adsorbs the sliding rod 83 and enables the lower clamping piece 81 to synchronously slide until the lower clamping piece 81 is blocked by the end part of the guide groove 61, the sliding seat 71 continues to move, the first magnetic block 78 is separated from the sliding rod, the lower clamping piece 81 does not slide after being reset, the sliding seat 71 continues to move right above the discharging position of the sock knitting machine 1, and the resetting is completed; one ends of the first rod 821 and the second rod 823 contacting the guide groove 61 are hemispherical, so that after contacting the side wall of the guide groove 61, the ends are blocked by the guide groove 61 to slide transversely, and the two lower clamping pieces 81 can be pushed to approach each other; during the process of resetting the lower clamping pieces 81, the penetrating rod 822 and the penetrating hole 811 slide relatively under the action of the second spring 825, and the first rod 821 and the second rod 823 push the lower clamping pieces 81 connected with the first rod to slide respectively, so that the two lower clamping pieces 81 are separated from each other, and the lower part of the next pair of socks is dropped between the two lower clamping pieces 81; the lower clamps 81 move closer to one end of the machine 2, moving the two lower clamps 81 away from each other, so as to loose the control of the sock and transfer it to the machine 2.

Further, a rotating plate 84 is rotatably connected to the lower clamping member 81, and a torsion spring 85 is installed between the rotating plate 84 and the lower clamping member 81; the two guide grooves 61 are respectively provided with a straight groove 62; a short rack 63 is arranged in one of the straight grooves 62; a circular hole 812 is formed in the bottom of the clamping piece; a cam 861 seat 813 is arranged in the round hole 812; the top of the cam 861 seat 813 is provided with an opening 814; a round rod 86 is inserted into the round hole 812; a cam 861 is connected on the round rod 86 in a sliding manner; one end of the cam 861 is provided with a second magnetic block 862; the cam 861 is positioned in the cam 861 seat 813; an insertion block 87 is inserted into the end of the rotating plate 84; the bottom of the insert block 87 is inserted into the opening 814; the insert 87 is slidably connected in the rotating plate 84; two ends of the round rod 86 are respectively provided with a limiting piece 863; an unlocking gear 864 is connected outside one of the limiting pieces 863; a one-way bearing 865 is arranged between the unlocking gear 864 and the limiting plate 863; the limiting piece 863 is positioned in the straight groove 62; the unlocking gear 864 may be engaged with the short rack 63.

When the lower clamping member 81 is in the original position, the bottom of the insertion block 87 is inserted into the opening 814, and the rotating plate 84 is vertically positioned in the lower clamping member 81, so that the condition that the lower part of the socks falls onto the rotating plate 84 to stretch the socks flatly in the following process is avoided; with the sliding of the lower clamping piece 81, the unlocking gear 864 is meshed with the short rack 63, the round rod 86 is driven to rotate, the cam 861 is enabled to rotate to be in contact with the insert block 87, the insert block 87 is pushed to move upwards to be separated from the opening 814, the rotating plate 84 is overturned under the action of the torsion spring 85 and is in contact with the sock along with the mutual approaching of the lower clamping piece 81, then the two rotating plates 84 rotate and stretch the sock flatly, the sock is compacted by the lower clamping piece 81, when the unlocking gear 864 is separated from the short rack 63, the second magnetic block 862 faces the opening 814, when the two lower clamping pieces 81 are tightly attached to the sock, the rotating plate 84 rotates to be in a vertical state, and the second magnetic block 862 attracts the lower insert block 87 to be inserted into the opening 814; when the lower clamp 81 is reset, the one-way bearing 865 is arranged between the round rod 86 and the unlocking gear 864, so that the round rod 86 does not rotate when the unlocking gear 864 is meshed with the short rack 63, and the rotating plate 84 is kept in a vertical state; the limiting piece 863 is inserted into the straight groove 62, so that the two lower clamping pieces 81 limit the position of the round rod 86 when moving relatively, and the unlocking gear 864 is prevented from being engaged with the short rack 63 normally due to the transverse movement.

When the sock is used specifically, the head of the sock extends out of the discharging position at the top of the sock knitting machine 1, and the second air cylinder 74 drives the trapezoidal block 77 to be inserted into the sock; the first cylinder 72 drives the trapezoidal block 77 to stretch the sock and enable the two pressing plates 761 to compact the head of the sock; then the motor 5 drives the screw rod 4 to rotate, the sliding seat 71 moves along with the screw rod, the lower part of the sock falls between the two lower clamping pieces 81, the sliding seat 71 pushes the sliding rod 83 to slide together with the lower clamping pieces 81, after the rotating plate 84 stretches the sock to be flat, the two lower clamping pieces 81 compact the sock until the sock is conveyed between the rotating wheels 9, the two lower clamping pieces 81 are far away from each other, and the rotating wheels 9 push the sock to move to the head sewing machine 2 for sewing; the sliding seat 71 moves reversely to reset, the first magnetic block 78 drives the sliding rod 83 to slide synchronously with the lower clamping piece 81 until the lower clamping piece 81 resets, the lower clamping piece 81 stops moving due to the blocking of the supporting plate 6, and the sliding seat 71 continues moving until resetting.

Claims

1. A sock head single-needle sewing structure of a sock knitting machine (1) comprises the sock knitting machine (1), a sewing machine (2) located on one side of the sock knitting machine (1), a rack (3) located between the sock knitting machine (1) and the sewing machine (2), two lead screws (4) rotatably connected to two sides of the rack (3), a motor (5) installed on the rack (3) and used for driving the lead screws (4), a supporting plate (6) arranged on the rack (3), an upper clamping component (7) slidably connected to the rack (3), a lower clamping component (8) slidably connected to the supporting plate (6), and a plurality of rotating wheels (9) arranged at one end, close to the sock knitting machine (1), of the sewing machine (2); the method is characterized in that: the upper clamping assembly (7) comprises two sliding seats (71) arranged on the two lead screws (4), a first air cylinder (72) fixed on the side of the sliding seats (71), a clamping block (73) arranged at the movable end of the first air cylinder (72), a second air cylinder (74) arranged at the top of the sliding seats (71), two connecting rods (75) rotatably connected to one end of the clamping block (73), and an upper clamping piece (76) arranged at the bottom of the clamping block (73); the ends of the two connecting rods (75) which are respectively and symmetrically connected between the two clamping blocks (73) are mutually and rotatably connected; a trapezoidal block (77) is connected between the connecting rods (75) symmetrically arranged between the two clamping blocks (73) in a sliding way; one end of the clamping block (73) can slide up and down in the sliding seat (71); the trapezoidal block (77) is located above the upper clamping piece (76).

2. A single-needle stitch structure of the toe of a hosiery knitting machine (1) according to claim 1, characterized in that: the upper clamping piece (76) comprises a pressing plate (761), a plurality of connecting rods (762) arranged at one end of the pressing plate (761), and a first spring (763) sleeved outside the connecting rods (762); the connecting rod (762) is inserted in the clamping block (73); the first spring (763) is located between the clamping block (73) and the platen (761).

3. A single-needle stitch structure of the toe of a hosiery knitting machine (1) according to claim 1, characterized in that: a first magnetic block (78) is arranged at the bottom of the sliding seat (71); two guide grooves (61) are symmetrically arranged on two sides of the middle part of the supporting plate (6); the lower clamping assembly (8) comprises two lower clamping pieces (81) symmetrically arranged between the two guide grooves (61), a through hole (811) formed in the bottoms of the lower clamping pieces (81), a guide rod (82) inserted between the two lower clamping pieces (81), and a sliding rod (83) arranged on one side of the lower clamping pieces (81); the guide rod (82) comprises a first rod piece (821) inserted in one of the through holes (811), a penetrating rod (822) arranged on the first rod piece (821), a second rod piece (823) inserted in the other through hole (811), and a penetrating hole (811) rod arranged outside the second rod piece (823); one end of the penetrating rod (822) penetrates through the penetrating hole (811) rod and is inserted into the second rod piece (823); the perforated (811) rod is inserted inside the first stem (821); a second spring (825) is respectively arranged between the first rod piece (821) and the through hole (811) rod as well as between the through rod (822) and the second rod piece (823); the end parts of the first rod part (821) and the second rod part (823) respectively contact two guide grooves (61); one end of the sliding rod (83) is opposite to the first magnetic block (78).

4. A single-needle stitch structure of the toe of a hosiery knitting machine (1) according to claim 3, characterized in that: the lower clamping piece (81) is connected with a rotating plate (84) in a rotating mode, and a torsion spring (85) is installed between the rotating plate (84) and the lower clamping piece (81).

5. A single-needle stitch structure of the toe of a hosiery knitting machine (1) according to claim 4, characterized in that: the two guide grooves (61) are respectively provided with a straight groove (62); a short rack (63) is arranged in one of the straight grooves (62); the bottom of the clamping piece is provided with a round hole (812); a cam (861) seat (813) is arranged in the round hole (812); an opening (814) is arranged at the top of the cam (861) seat (813); a round rod (86) is inserted into the round hole (812); the round rod (86) is connected with a cam (861) in a sliding way; one end of the cam (861) is provided with a second magnetic block (862); the cam (861) is positioned in a cam (861) seat (813); an insertion block (87) is inserted into the end part of the rotating plate (84); the bottom of the inserting block (87) is inserted into the opening (814); the insert block (87) is connected in the rotating plate (84) in a sliding manner; two ends of the round rod (86) are respectively provided with a limiting piece (863); an unlocking gear (864) is connected outside one of the limiting pieces (863); a one-way bearing (865) is arranged between the unlocking gear (864) and the limiting sheet (863); the limiting piece (863) is positioned in the straight groove (62); the unlocking gear (864) can be meshed with the short rack (63).