CN108642726B - Sock head sewing and fixing device - Google Patents
Sock head sewing and fixing device Download PDFInfo
- Publication number
- CN108642726B CN108642726B CN201810934102.9A CN201810934102A CN108642726B CN 108642726 B CN108642726 B CN 108642726B CN 201810934102 A CN201810934102 A CN 201810934102A CN 108642726 B CN108642726 B CN 108642726B
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- needle
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- bearing
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- 238000009958 sewing Methods 0.000 title description 17
- 230000007306 turnover Effects 0.000 claims abstract description 83
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000003825 pressing Methods 0.000 claims description 43
- 210000004907 gland Anatomy 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009940 knitting Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B7/00—Linking machines, e.g. for joining knitted fabrics
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
A toe stitch-down securing device comprising: the needle dial overturning device comprises a base, a fixed needle dial, an overturning needle dial, a first needle dial fixing frame, a second needle dial fixing frame and an overturning control mechanism; the fixed needle dial is arranged on the base through a first needle dial fixing frame, and a first needle is arranged on the fixed needle dial; the turnover needle disc is arranged on one side of the fixed needle disc in a turnover manner through a second needle disc fixing frame, a second needle is arranged on the turnover needle disc, and the turnover needle disc can be turned relative to the fixed needle disc so as to align the second needle with the first needle; the outer side wall of the second dial fixing frame is provided with a turnover pin; the turnover control mechanism comprises a motor, a turnover arm and the like, the motor controls the turnover mechanism, and the free end of the turnover arm can clamp the turnover pin to control the turnover of the second dial fixing frame. The turnover control mechanism has a very simple structure, the turnover arm clamps the turnover pin, and the turnover arm is indirectly driven to rotate by the motor, so that the turnover needle disc, the second needle disc fixing frame and the second needle are turned over, the operation is very convenient, and the production efficiency can be greatly improved.
Description
Technical Field
The invention relates to the technical field of knitting equipment, in particular to a sock head sewing and fixing device.
Background
In the process of knitting the sock, firstly knitting the cylindrical sock body, and finally sewing the sock head, when sewing the sock head, the loops of the sock head are required to be fixed together through the sock head sewing and fixing device, and then sewing is carried out through the sock head sewing device. The prior art sock head sewing and fixing device generally comprises a fixed needle disc and a turnover needle disc, needles for fixing loops of the sock head are respectively arranged on the fixed needle disc and the turnover needle disc, the cylindrical sock head can be flattened into two cloth pieces through turnover of the turnover needle disc, the sock head can be sewn together through stitching loops on the two cloth pieces, however, the prior art sock head sewing and fixing device has a complex structure, the structure for controlling turnover of the turnover needle disc is complex, the turnover of the turnover needle disc is not easy to control, and the production efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems, and provides the sock head sewing and fixing device which has a simple structure, can very conveniently control the overturning of the overturning dial, and can improve the production efficiency.
In order to achieve the above object, the present invention provides a toe stitch-fixing device comprising: the needle dial comprises a base, a fixed needle dial, a turnover needle dial, a first needle dial fixing frame, a second needle dial fixing frame and a turnover control mechanism;
the fixed needle dial is arranged on the base through a first needle dial fixing frame, and a plurality of first needles which are circumferentially arranged are arranged on the fixed needle dial;
the turnover needle disc is arranged on the other side of the fixed needle disc in a turnover manner through a second needle disc fixing frame and is matched with the fixed needle disc to form a circular structure, a plurality of second needles which are circumferentially arranged are arranged on the turnover needle disc, the number of the second needles corresponds to that of the first needles one by one, and the turnover needle disc can turn relative to the fixed needle disc so as to align the second needles with the first needles;
the outer side wall of the second dial fixing frame is provided with a turnover pin;
the turnover control mechanism comprises a motor and a turnover arm, wherein the motor is directly or indirectly connected with the turnover arm to control the turnover arm to turn over, and the free end of the turnover arm can be buckled with the turnover pin to control the second dial fixing frame to turn over.
In an embodiment of the present invention, an elongated groove is provided on the outer side of the second dial fixing frame, the toe stitching fixing device further includes a movable latch installed on one side of the groove, and a free end of the latch can be inserted into the groove to fix the second dial fixing frame, so that the turnover dial is fixed on the other side of the fixed dial.
In an embodiment of the present invention, a free end of the latch is tapered.
In an embodiment of the invention, the turnover control mechanism further includes: the cylinder body, the piston, the thrust needle bearing, the reset spring, the spring ejector rod, the sensing block, the shaft retainer ring, the limiting plate, the worm wheel shaft and the worm,
the worm wheel shaft movably penetrates into the cylinder block; the worm wheel shaft is provided with an inner hole which is opened towards one end;
the overturning arm is arranged at one end of the worm wheel shaft, and the thrust needle roller bearing and the induction block are arranged at the other end of the worm wheel shaft in a limiting manner through the shaft retainer ring;
the cylinder body is provided with a cylinder cavity for the piston to move, and the piston is arranged in the cylinder cavity, and one end of the piston abuts against the thrust needle bearing to push the thrust needle bearing to move;
the limiting plate is arranged on one side of the cylinder block so as to block the thrust needle roller bearing and the induction block;
the spring ejector rod is in a step shaft shape, one end of the spring ejector rod is used for sleeving a reset spring, and the other end of the spring ejector rod is propped against the limiting plate; the reset spring is sleeved on the spring ejector rod, one end of the reset spring is propped against the step of the spring ejector rod, and the other end of the reset spring is propped against the inner hole of the worm wheel shaft;
when compressed air is introduced into the cylinder cavity, the piston pushes the thrust needle roller bearing to enable the worm wheel shaft to move towards the limiting plate, the overturning arm is far away from the overturning pin, and at the moment, the reset spring is compressed; when compressed air is not introduced into the cylinder cavity, the return spring enables the worm wheel shaft to return, so that the free end of the turning arm can buckle the turning pin;
the worm is connected with the motor; the worm is matched with the worm wheel shaft to drive the worm wheel shaft to rotate, so that the motor controls the overturning arm to overturn through the worm.
In one embodiment of the present invention, the worm wheel shaft has worm gear teeth with a helix angle with the axial direction of the worm wheel shaft, the worm has worm gear teeth matched with the worm gear teeth, and the worm gear teeth can move spirally back and forth along the worm gear teeth when the worm is not moving; when the worm rotates, the worm can drive the worm wheel shaft to rotate.
In an embodiment of the invention, the turning arm is a bent rod with a 90-degree bend, the tail end of the turning arm is connected with the worm wheel shaft, and the free end of the turning arm is provided with a fastening groove for fastening the turning pin.
In an embodiment of the invention, the device further comprises a wire pushing mechanism, wherein the wire pushing mechanism comprises a gland, a first bearing, a first pressing piece, a second pressing piece, a pressing column, a long pushing column, a short pushing column, a stop plate, a bearing seat, a gear, a spring ejector rod, a bearing seat return spring, a second bearing, a semi-ring pressing piece, a piston and a cylinder;
the bearing seat is movably arranged on the outer side of the base and can move along the axial direction of the base; the first bearing is arranged on the bearing seat; the cylinder is fixed above the first bearing through an external frame; one end of the piston extends into the cylinder, the cylinder controls the piston to move, and the other end of the piston is connected with the first bearing through the gland; when the piston moves, the bearing and a component connected with the first bearing are driven to move together;
the first pressing piece is fixed at the lower end of the bearing seat to limit the bearing; the second pressing piece is arranged at the upper end of the bearing seat; the stop plate is fixed at the upper end of the base through a screw so as to limit the movement of the bearing; the gear is arranged on the outer side of the base; the second bearing is arranged at the lower end of the gear;
the semi-ring pressing piece is arranged at the lower end of the fixed needle disc and positioned in the circumference surrounded by the first needles; one end of the pressing column penetrates through the bearing seat to be connected with the second pressing sheet, and the other end of the pressing column penetrates through the first needle disc fixing frame and the fixed needle disc connecting semi-ring pressing sheet;
the semi-ring push piece is arranged at the lower end of the turnover dial and positioned in the circumference surrounded by the second needles; one end of the long push column penetrates through the bearing seat to be connected with the second pressing sheet, the other end of the long push column corresponds to the upper end of the short push column, the upper end of the short push column extends out of the upper end of the second dial fixing frame, and the lower end of the short push column penetrates through the second dial fixing frame and the turnover dial to be connected with the semi-ring push sheet;
the bearing seat is provided with a reset guide hole, one end of the spring ejector rod stretches into the reset guide hole and props against the second pressing piece, the other end of the spring ejector rod penetrates through the gear, one end of the spring ejector rod stretching into the reset guide hole is provided with a boss, and the bearing seat reset spring is sleeved on the outer side of the spring ejector rod and props against the space between the boss of the spring ejector rod and the gear.
In an embodiment of the invention, the thread pushing mechanism further comprises a spring sleeve, a sleeve reset spring, a first spring pin head and a second spring pin head, wherein the spring sleeve is fixedly arranged in the second dial fixing frame, the sleeve reset spring is arranged in the spring sleeve, one end of the sleeve reset spring is connected with the spring sleeve through the first spring pin head, and the other end of the sleeve reset spring is connected with the semi-ring push plate through the second spring pin head.
In an embodiment of the present invention, the first needle includes a first needle bar, a first needle tip disposed at one end of the first needle bar, and a first fixed tail end disposed at the other end of the first needle bar, the first needle bar has four edges, an outer surface of the first needle tip transitions from one end connected to the first needle bar to the other end to form a first tip, and the first needle tip is provided with a needle tip groove disposed along an axial direction of the first needle tip; the second needle comprises a second needle rod, a second needle point arranged at one end of the second needle rod and a second fixed tail end arranged at the other end of the second needle rod, the second needle rod is provided with four edges, the outer surface of the second needle point is transitionally formed into a second pointed end from one end connected with the second needle rod to the cambered surface of the other end, the second pointed end corresponds to the needle point groove, when the turnover needle disc overturns the second needle to align with the first needle, the second pointed end is inserted into the needle point groove, and the outer surface of the second pointed end is lower than the outer surface of the first needle point.
In one embodiment of the invention, the first needle bar of the first needle arranged at the edge of the fixed needle dial is provided with a first groove which is transversely arranged; the second needle bar of the second needle arranged at the edge of the turnover needle disc is provided with a second groove which is transversely arranged.
Compared with the prior art, the beneficial effects of the technical scheme are as follows:
the turnover control mechanism of the sock stitching fixing device is very simple in structure, the turnover arm is driven to rotate by the motor, and the turnover pin can be clamped, so that the turnover needle disc, the second needle disc fixing frame and the second needle arranged on the turnover needle disc are turned over, the operation is very convenient, and the production efficiency can be greatly improved.
Drawings
FIG. 1 is a schematic view of a sock stitching fixture of the present invention;
FIG. 2 is a schematic view of a portion of the structure of the sock stitching fixture of the present invention with the reversing dial in a pre-reversing state;
FIG. 3 is a schematic view of a portion of the structure of the sock stitching fixture of the present invention with the reversing dial in a reversed state;
FIG. 4 is a schematic view of the structure of FIG. 2 at another angle;
FIG. 5 is a schematic view of the structure of FIG. 2 at a further angle;
FIG. 6 is a schematic structural view of a fixing latch of the sock stitching fixing device of the present invention;
FIG. 7 is a schematic structural view of a turnover control structure of the sock stitching fixture device of the present invention;
FIG. 8 is a schematic view of the internal structure of the tumble control structure shown in FIG. 7;
FIG. 9 is a cross-sectional view of the tumble control structure of FIG. cooperating with a tumble pin;
FIG. 10 is a schematic view of the construction of an embodiment of a first needle of the sock stitching fixture device of the present invention;
FIG. 11 is a schematic view of the construction of another embodiment of the first needle of the sock stitching-securing device of the present invention;
FIG. 12 is a schematic view of the construction of an embodiment of a second needle of the sock stitching fixture device of the present invention;
FIG. 13 is a schematic view of another embodiment of a second needle of the sock stitching-securing device of the present invention;
FIG. 14 is a cross-sectional view of a sock stitching fixture device of the present invention taken through a spring sleeve and a push post;
FIG. 15 is a cross-sectional view of the sock stitching fixture of the present invention taken through the compression column and spring plunger.
The reference numerals in the drawings are as follows: 1. base, 11, fixed latch, 111, cylinder, 2, fixed dial, 3, reversing dial, 4, first dial holder, 5, second dial holder, 51, reversing pin, 501, groove, 6, reversing control mechanism, 601, motor, 602, reversing arm, 603, cylinder block, 604, piston, 605, return spring, 606, worm wheel shaft, 6061, worm gear, 607, worm, 6071, worm gear, 608, thrust needle bearing, 609, shaft retainer ring, 610, spring jack, 611, sensing block, 612, limiting plate, 7, thread pushing mechanism, 701, gland, 702, first bearing, 703, first pressing piece, 704, second pressing piece, 705, pressing post, 706, long pushing post, 707, short pushing post, 708, stop plate, 709, bearing block, 710, gear, 711, spring ram, 712, bearing block return spring, 713, second bearing, 718, half-ring pusher, 719, half-ring pusher, 721, spring sleeve, 722, sleeve return spring, 723, first spring pin head, 724, piston, 725, cylinder, 727, second spring pin head 8, first needle, 81, first needle bar, 811, first groove, 82, first needle point, 821, first tip, 822, needle point groove, 83, first fixed tail end, 9, second needle, 91, second needle bar, 911, second groove, 912, needle slot, 92, second needle point, 921, second tip, 93, second fixed tail end.
Detailed Description
The technical scheme of the invention is clearly and completely described below by means of specific embodiments in combination with the accompanying drawings.
Referring to fig. 1, the present invention provides a toe stitching and fixing device, comprising: base 1, fixed dial 2, upset dial 3, first dial mount 4, second dial mount 5 and upset control mechanism 6.
The fixed dial 2 is mounted on the base 1 by means of a first dial mount 4, on which fixed dial 2 a number of circumferentially arranged first needles 8 are mounted.
The turnover needle disc 3 is installed on one side of the fixed needle disc 2 in a turnover manner through the second needle disc fixing frame 5 and is matched with the fixed needle disc 2 to form a circular structure, a plurality of second needles 9 which are circumferentially arranged are installed on the turnover needle disc 3, the number of the second needles 9 corresponds to the number of the first needles 8 one by one, and the turnover needle disc 3 can be turned relative to the fixed needle disc 2 so that the second needles 9 are aligned with the first needles 8.
Referring to fig. 10, the first needle 8 includes a first needle bar 81, a first needle tip 82 disposed at one end of the first needle bar 81, and a first fixed tail end 83 disposed at the other end of the first needle bar 81, the first needle bar 81 has four edges, an outer surface of the first needle tip 82 transitions from one end connected to the first needle bar 81 to the other end to form a first tip 821, and the first needle tip 82 is provided with a needle tip groove 822 disposed along an axial direction of the first needle tip 82. Referring to fig. 12, the second needle 9 includes a second needle bar 91, a second needle tip 92 disposed at one end of the second needle bar 91, and a second fixed tail end 93 disposed at the other end of the second needle bar 91, the second needle bar 91 has four edges, the outer surface of the second needle tip 92 is transitionally formed into a second pointed end 921 from one end connected to the second needle bar 91 to the other end, the second pointed end 921 corresponds to the needle tip slot 822, when the turnover dial 3 is turned over, the second needle 9 is aligned with the first needle 8, the second pointed end 921 is inserted into the needle tip slot 822, and the second pointed end 921 is collected in the needle tip slot 822 of the first needle tip 82.
In this embodiment, the outer surface of the first needle tip 82 transitions from one end connected to the first needle shaft 81 to the other end to form the first tip 821, that is, the outer surface of the first needle tip 82 is similar to a conical surface, and the first tip 821 is thinner. The first needle point 82 is provided with a needle point groove 822 arranged along the axial direction of the first needle point 82, and the second tip 921 of the second needle 9 can be inserted into and stored in the needle point groove 822, so that the stitch can be conveniently transferred from the first needle 8 to the second needle 9, and then the stitch can be stitched together to finish the stitching of the sock head. The first needle tip 82 is provided with a needle tip groove 822 for inserting the second tip 921 of the second needle 9 thereinto, and the structure can make the first needle 8 thinner, so that the needle disc with the same outer circle can be provided with a larger number of needle grooves, and a larger number of first needles 8 can be arranged for stitching socks with a larger number of needles.
As shown in fig. 11, the first needle bar 81 of the first needle 8 provided at the edge of the fixed dial 2 is provided with a first groove 811 provided laterally. Referring to fig. 13, the second needle bar 91 of the second needle 9 provided at the edge of the reversing dial 3 is provided with a second groove 911 provided laterally. Since the loops adjacent to the fixed dial 2 and the turnover dial 3 are pulled each other when the turnover dial 3 is turned over, the loops on the first needle bar 81 and the second needle bar 91 have a tendency to slide out from the first tip 821 and the second tip 921, and the provision of the first groove 811 and the second groove 911 can prevent the loops from sliding out. Since the coil at the edge is subjected to a large pulling force when the turnover dial 3 is turned over, only two or three first pins 8 mounted at the edge of the fixed dial 2 are required to be provided with the first grooves 811, and the first pins 8 mounted at other positions are required to be provided with no first grooves 811; similarly, only two or three second needles 9 mounted on the edge of the turnover dial 3 need to be provided with the second grooves 911, and the second needles 9 mounted at other positions need not be provided with the second grooves 911.
In one embodiment, the number of the first grooves 811 and the second grooves 911 is one. Since the overturning action of the overturning dial 3 is very fast, the first groove 811 or the second groove 911 can play a role in preventing the coil from sliding out; in another embodiment, the number of the first grooves 811 and the second grooves 911 is two, and the two first grooves 811 and the second grooves 911 play a dual-protection role, so as to effectively prevent the coil from sliding out. The number of the first grooves 811 is not limited in the present invention, and the number of the first grooves 811 may be three or more.
Referring to fig. 12 and 13, the second needle bar 91 is provided with a slit 912 provided along an axial direction of the second needle bar 91. After transferring the stitch on the toe from the first needle 8 to the second needle 9, the stitch can be stitched together by the needle shuttling in the stitch slot 912 to complete the stitch of the toe.
The outer side wall of the second dial holder 5 is provided with a turnover pin 51.
The turning control mechanism 6 comprises a motor 601 and a turning arm 602, wherein the motor 601 is directly or indirectly connected with the turning arm 602 to control the turning of the turning arm 602, and the free end of the turning arm 602 can clamp the turning pin 51 to control the turning of the second dial fixing frame 5.
In the invention, the turnover control mechanism 6 has a very simple structure, the turnover arm 602 is driven to rotate by the motor 601, and the turnover pin 51 can be buckled, so that the turnover needle dial 3, the second needle dial fixing frame 5 and the second needle 9 arranged on the turnover needle dial 3 are turned over, the operation is very convenient, and the production efficiency can be greatly improved.
Further, referring to fig. 1, 2 and 6, the outer side of the second dial holder 5 is provided with a long groove 501, the toe stitch fixing device further includes a movable latch 11 mounted on one side of the groove 501, and a free end of the latch 11 can be inserted into the groove 501 to fix the second dial holder 5, so that the turnover dial 3 is fixed on the other side of the fixed dial 2. When transferring socks from other transfer devices to the sock head sewing and fixing device, the overturning needle dial 3 and the fixed needle dial 2 are positioned on the same plane, and the overturning needle dial 3 and the fixed needle dial 2 are matched to form a circular structure, so that the loops of the socks on the transfer device can be transferred to the sock head sewing and fixing device. At this time, the latch 11 is inserted into the groove 501, preventing the turnover dial 3 from falling down due to its own weight to turn over. When it is desired to invert the invert dial 3, the pins 11 are withdrawn from the recesses 501 so that the invert control mechanism 6 can control the invert of the invert dial 3. In this embodiment, the pin 11 may be connected to the cylinder 111, and the pin 11 is controlled to move back and forth by the cylinder 111, that is, the pin 11 is controlled to be inserted into the groove 501 or withdrawn from the groove 501 by the cylinder 111.
The free end of the bolt 11 is wedge-shaped, so that the bolt can be inserted into the groove 501 more easily, and the fixing effect is achieved.
Referring to fig. 7-9, the turnover control mechanism 6 further includes: cylinder block 603, piston 604, thrust needle bearing 608, return spring 605, spring ram 610, sensing block 611, shaft retainer 609, stop plate 612, worm wheel shaft 606 and worm 607. The worm wheel shaft 606 movably penetrates the cylinder block 603; the worm wheel shaft 606 is provided with an inner bore that is open toward one end. The turning arm 602 is installed at one end of the worm wheel shaft 606, and the thrust needle bearing 608 and the sensing block 611 are installed at the other end of the worm wheel shaft 606 in a limiting manner through the shaft retainer ring 609. The cylinder block 63 has a cylinder chamber in which the piston 604 moves, and the piston 604 is disposed in the cylinder chamber and has one end abutting the thrust needle bearing 608 to push the thrust needle bearing 608 to move.
The limiting plate 612 is installed at one side of the cylinder block 603 to block the thrust needle bearing 608 and the sensing block 611.
The spring ejector rod 610 is in a step shaft shape, one end of the spring ejector rod is used for sleeving the return spring 605, and the other end of the spring ejector rod is propped against the limiting plate 612. The return spring 605 is sleeved on the spring ejector rod 610, one end of the return spring is propped against the step of the spring ejector rod 610, and the other end of the return spring is propped against the inner hole of the worm wheel shaft 606. Specifically, the inner bore of the worm gear shaft has a vertical surface, and the return spring 605 abuts against the vertical surface of the inner bore.
When compressed air is introduced into the cylinder chamber, the piston 604 pushes the thrust needle bearing 608 to move the worm wheel shaft 606 toward the limiting plate 612, so that the flipping arm 602 moves away from the flipping pin 51, and the return spring 605 is compressed. When the cylinder chamber is not pressurized (or pressurized) the return spring 605 returns the worm wheel shaft 606 so that the free end of the flipping arm 602 can catch the flipping pin 51.
The worm 607 is connected to the motor 601; the worm 607 cooperates with the worm wheel shaft 606 to drive the worm wheel shaft 606 to rotate, so that the motor controls the flipping arm 602 to flip through the worm 607.
In this embodiment, the piston 604 can be controlled to advance or retract by air intake or air discharge of the cylinder 603, so that the turning arm 602 can buckle the turning pin 51 or release the turning pin 51, and when the turning dial 3 needs to be turned, only air is required to pass through the cylinder 603, so that the operation is very simple. In addition, the motor 601 is indirectly connected with the turning arm 602 through the worm wheel 606 and the worm 607, so that the motor 601 can be arranged on one side of the cylinder body 603, and the structure is more compact.
Referring to fig. 8, the worm wheel shaft 606 has worm gear teeth 6061 having a helix angle with the axial direction of the worm wheel shaft 606, the worm 607 has worm gear teeth 6071 cooperating with the worm gear teeth 6061, and when the worm 607 is not moved, the worm gear teeth 6061 can be spirally moved back and forth along the worm gear teeth 6071; when the worm 607 rotates, the worm 607 can drive the worm wheel shaft 606 to rotate.
The turning arm 602 is a bent rod with a 90-degree bend, the tail end of the turning arm 602 is connected with the worm wheel shaft 606, and the free end of the turning arm 602 is provided with a buckling groove for buckling the turning pin 51. The structure of the turning arm 602 is very simple, and the turning pin 51 can be conveniently buckled for turning action, and the turning pin 51 can be conveniently released after the turning dial 3 turns in place.
Referring to fig. 1-5 and 14-15, the toe suture fixing device further comprises a thread pushing mechanism 7 for transferring the loops of thread around the first needle 8 and/or the second needle 9.
The wire pushing mechanism 7 comprises a gland 701, a first bearing 702, a first pressing piece 703, a second pressing piece 704, a pressing post 705, a long pushing post 706, a short pushing post 707, a stop plate 708, a bearing seat 709, a gear 710, a spring ejector 711, a bearing seat return spring 712, a second bearing 713, a half-ring push piece 718, a half-ring pressing piece 719, a piston 724, a cylinder 725, a spring sleeve 721, a sleeve return spring 722, a first spring pin 723, and a second spring pin 727.
The bearing seat 709 is movably installed at an outer side of the base 1, and the bearing seat 709 is movable along an axial direction of the base 1. The first bearing 702 is mounted on a bearing mount 709. The cylinder 725 is fixed above the first bearing 702 by an external frame. One end of piston 724 extends into cylinder 725, piston 724 is controlled to move by cylinder 725, and the other end of piston 724 is connected with first bearing 702 through gland 701. The piston 724, when moved, moves the bearing 702 and the components connected to the first bearing 702 together.
The first pressing piece 703 is fixed to the lower end of the bearing seat 709 to limit the bearing. The second press piece 704 is disposed at an upper end of the bearing seat 709. The stopper plate 708 is fixed to the upper end of the base 1 by a screw to limit the movement of the bearing 709. The gear 710 is provided outside the base 1. A second bearing 713 is mounted to the lower end of the gear 710.
The half ring pressing piece 719 is disposed at the lower end of the fixed dial 2 and is located in a circumference surrounded by the plurality of first needles 8. One end of the pressing column 5 passes through the bearing seat 709 to be connected with the second pressing sheet 704, and the other end passes through the first needle dial fixing frame 4 and the fixed needle dial 2 to be connected with the semi-ring pressing sheet 719.
The semi-ring push piece 718 is arranged at the lower end of the turnover dial 3 and is positioned in the circumference surrounded by the second needles 9. One end of the long push column 706 passes through the bearing seat 709 to be connected with the second pressing sheet 704, the other end corresponds to the upper end of the short push column 707, the upper end of the short push column 707 extends out from the upper end of the second dial fixing frame 5, and the lower end of the short push column 707 passes through the second dial fixing frame 5 and the turnover dial 3 to be connected with the semi-ring push sheet 718.
The bearing seat 709 is provided with a reset guide hole, one end of the spring ejector rod 711 extends into the reset guide hole and props against the second pressing piece 704, the other end of the spring ejector rod 711 penetrates through the gear 710, a boss is arranged at one end of the spring ejector rod 711 extending into the reset guide hole, and the bearing seat reset spring is sleeved outside the spring ejector rod 711 and props against the space between the boss of the spring ejector rod 711 and the gear 710.
The spring sleeve 721 is fixedly installed in the second dial fixing frame 5, the sleeve return spring 722 is arranged in the spring sleeve 721, one end of the sleeve return spring 722 is connected with the spring sleeve 721 through a first spring pin head 723, and the other end is connected with the semi-ring push piece 718 through a second spring pin head 724.
The working principle of the wire pushing mechanism is as follows: when the stitches at the knitting site of the sock are just transferred from the transfer tray to the first needle and the second needle, the turning dial and the fixed dial are at the same horizontal position (non-turned state). The latch 11 is then withdrawn from the recess 501 and the free end of the flip arm 602 snaps over the flip pin 51 and flips over the flip dial 3, the tip of the second needle being inserted into and stowed in the tip slot of the first needle. Then, the toe stitching device with the circular arc-shaped supporting blocks is moved (approaches) to the correct position relative to the toe stitching fixing device. At this time, the circular arc supporting block arranged on the sock head stitching device supports the second needle dial fixing frame 5. The free end of the flip arm 602 is then withdrawn (away from) the flip pin 51.
Bearing 702, first press 703, second press 704, press 705, long press 706, bearing seat 709 and half-ring press 719 are assembled by fasteners into a relatively fixed assembly, wherein when one element moves, the other element moves, and for ease of understanding, the assembly formed by bearing 702, first press 703, second press 704, press 705, long press 706, bearing seat 709 and half-ring press 719 is referred to as assembly one. The free end of the turning arm 602 is far away from the turning pin 51, compressed air is introduced into the cylinder 725, the piston 724 pushes the pressing cover 701 downwards, the pressing cover 701 pushes the first bearing 702, the assembly moves downwards, the semi-ring pressing piece 719 pushes the sock loops, the knitting loops on the first needle 8 in the last knitting row of the sock head are transferred to the second needle 9, and the knitting loops on the second needle 9 are overlapped up and down. Upon downward movement of the assembly, the spring lift 711 is pressed by the second press plate 704, so that the spring lift 711 is also moved downward, and the bearing housing return spring 712 is compressed.
Then, the motor controlling the intermittent rotation (each pulse rotates a fixed angle) required for the sewing is operated, and the motor drives the gear 710 to make the intermittent rotation (at this time, the first bearing 702 and the second bearing 713 act to make the bearing inner race rotate together with the gear 710 and the base 1. The reaction force of the bearing seat return spring 712 compressed is the pretightening force of the first bearing 702 and the second bearing 713, thereby eliminating the internal gap of the first bearing 702 and the second bearing 713 and ensuring the accuracy of the intermittent rotation.) the intermittent rotation cooperates with the reciprocating cyclic rotation penetration motion of the first stitch and the second stitch of the sewing device and the stitch frame, thereby completing the sewing of the sock head.
After the stitching is completed, the motor rotates in reverse (at a constant speed) so that the gear 10 returns to the rotation initial position. Thereafter, the cylinder 25 stops the supply of compressed air (i.e., the air in the cylinder 25 is exhausted), and the bearing housing return spring 712 is restored to return the assembly to the original position.
The free end of the flip arm 602 then snaps over the flip pin 51; then, the sock head stitching device reversely moves to an initial position to separate the arc supporting block from the second needle dial fixing frame 4; the invert arm 602 is then rotated to swivel the invert dial 3 to the same horizontal position as the fixed dial 2. The free end of the latch 11 is inserted into the recess 501 to secure the second dial holder 5. The free end of the flip arm 602 is then withdrawn (away from) the flip pin 51.
After that, the cylinder 725 is filled with compressed air, the piston 724 pushes the gland 701 downwards, the gland 701 moves the assembly downwards through the bearing 702, so that the long push column 706 pushes the short push column 707, and the semi-ring push sheet 718 pushes the toe coil on the already-sewn second needle 9 to be separated from the second needle 9; at this time, the half ring push piece 718 simultaneously pushes the second spring pin head 727, so that the sleeve return spring 722 is elongated. Upon downward movement of the assembly, the spring lift 711 is compressed by the second compression plate 704, causing the spring lift 711 to also move downward, causing the bearing housing return spring 712 to be compressed. After the toe coil is disengaged from the second needle 9, the cylinder 25 stops the compressed air supply, the bearing seat return spring 712 returns, bringing the assembly back to the initial position; at the same time, the sleeve return spring 722 returns to return the short push post 707 and the half ring push piece 718.
As described above, the toe stitch fixing device completes a complete motion, completes the fixation of a toe stitch, and assists the stitch motion. After that, the above operation is repeated for a plurality of socks by repeating this cycle.
In addition, the sock head sewing and fixing device is provided with a plurality of sensors, and the end position of each step of action is detected and confirmed by the sensors. The sensor transmits a confirmation signal to the control system, and the system sends out an instruction for starting the next action.
Although the present invention has been described in terms of the preferred embodiments, it is not intended to be limited to the embodiments, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present invention by using the methods and technical matters disclosed above without departing from the spirit and scope of the present invention, so any simple modifications, equivalent variations and modifications to the embodiments described above according to the technical matters of the present invention are within the scope of the technical matters of the present invention.
Claims (8)
1. A toe stitch-down securing device, comprising: the needle machine comprises a base, a fixed needle dial, a turnover needle dial, a first needle dial fixing frame, a second needle dial fixing frame, a thread pushing mechanism and a turnover control mechanism; the fixed needle dial is arranged on the base through a first needle dial fixing frame, and a plurality of first needles which are circumferentially arranged are arranged on the fixed needle dial; the turnover needle disc is arranged on the other side of the fixed needle disc in a turnover manner through a second needle disc fixing frame and is matched with the fixed needle disc to form a circular structure, a plurality of second needles which are circumferentially arranged are arranged on the turnover needle disc, the number of the second needles corresponds to that of the first needles one by one, and the turnover needle disc can turn relative to the fixed needle disc so as to align the second needles with the first needles; the outer side wall of the second dial fixing frame is provided with a turnover pin; the overturning control mechanism comprises a motor and an overturning arm, wherein the motor is directly or indirectly connected with the overturning arm to control the overturning arm to overturn, and the free end of the overturning arm can be buckled with the overturning pin to control the second dial fixing frame to overturn;
the wire pushing mechanism comprises a gland, a first bearing, a first pressing piece, a second pressing piece, a pressing column, a long pushing column, a short pushing column, a stop plate, a bearing seat, a gear, a spring ejector rod, a bearing seat reset spring, a second bearing, a semi-ring pressing piece, a piston and a cylinder; the bearing seat is movably arranged on the outer side of the base and can move along the axial direction of the base; the first bearing is arranged on the bearing seat; the cylinder is fixed above the first bearing through an external frame; one end of the piston extends into the cylinder, the cylinder controls the piston to move, and the other end of the piston is connected with the first bearing through the gland; when the piston moves, the bearing and a component connected with the first bearing are driven to move together; the first pressing piece is fixed at the lower end of the bearing seat to limit the bearing; the second pressing piece is arranged at the upper end of the bearing seat; the stop plate is fixed at the upper end of the base through a screw so as to limit the movement of the bearing; the gear is arranged on the outer side of the base; the second bearing is arranged at the lower end of the gear; the semi-ring pressing piece is arranged at the lower end of the fixed needle disc and positioned in the circumference surrounded by the first needles; one end of the pressing column penetrates through the bearing seat to be connected with the second pressing sheet, and the other end of the pressing column penetrates through the first needle disc fixing frame and the fixed needle disc connecting semi-ring pressing sheet; the semi-ring push piece is arranged at the lower end of the turnover dial and positioned in the circumference surrounded by the second needles; one end of the long push column penetrates through the bearing seat to be connected with the second pressing sheet, the other end of the long push column corresponds to the upper end of the short push column, the upper end of the short push column extends out of the upper end of the second dial fixing frame, and the lower end of the short push column penetrates through the second dial fixing frame and the turnover dial to be connected with the semi-ring push sheet; the bearing seat is provided with a reset guide hole, one end of the spring ejector rod stretches into the reset guide hole and props against the second pressing piece, the other end of the spring ejector rod passes through the gear, a boss is arranged at one end of the spring ejector rod stretching into the reset guide hole, and the bearing seat reset spring is sleeved outside the spring ejector rod and props against the space between the boss of the spring ejector rod and the gear; the thread pushing mechanism further comprises a spring sleeve, a sleeve reset spring, a first spring pin head, a second spring pin head, wherein the spring sleeve is fixedly installed in the second needle dial fixing frame, the sleeve reset spring is arranged in the spring sleeve, one end of the sleeve reset spring is connected with the spring sleeve through the first spring pin head, and the other end of the sleeve reset spring is connected with the semi-ring push piece through the second spring pin head.
2. The toe stitch fastening apparatus as recited in claim 1, wherein an elongated recess is provided on the outside of said second dial holder, said toe stitch fastening apparatus further comprising a movable latch mounted on one side of the recess, the free end of said latch being insertable into said recess to secure said second dial holder, said flip dial being secured to the other side of said fixed dial.
3. The toe stitch fastening apparatus as recited in claim 2, wherein the free end of said latch is wedge-shaped.
4. The toe stitch fastening apparatus as recited in claim 1, wherein said rollover control mechanism further comprises: the device comprises a cylinder body, a piston, a thrust needle bearing, a return spring, a spring ejector rod, an induction block, a shaft retainer ring, a limiting plate, a worm wheel shaft and a worm, wherein the worm wheel shaft can movably penetrate into the cylinder body; the worm wheel shaft is provided with an inner hole which is opened towards one end; the overturning arm is arranged at one end of the worm wheel shaft, and the thrust needle roller bearing and the induction block are arranged at the other end of the worm wheel shaft in a limiting manner through the shaft retainer ring; the cylinder body is provided with a cylinder cavity for the piston to move, and the piston is arranged in the cylinder cavity, and one end of the piston abuts against the thrust needle bearing to push the thrust needle bearing to move; the limiting plate is arranged on one side of the cylinder block so as to block the thrust needle roller bearing and the induction block; the spring ejector rod is in a step shaft shape, one end of the spring ejector rod is used for sleeving a reset spring, and the other end of the spring ejector rod is propped against the limiting plate; the reset spring is sleeved on the spring ejector rod, one end of the reset spring is propped against the step of the spring ejector rod, and the other end of the reset spring is propped against the inner hole of the worm wheel shaft; when compressed air is introduced into the cylinder cavity, the piston pushes the thrust needle roller bearing to enable the worm wheel shaft to move towards the limiting plate, the overturning arm is far away from the overturning pin, and at the moment, the reset spring is compressed; when compressed air is not introduced into the cylinder cavity, the return spring enables the worm wheel shaft to return, so that the free end of the turning arm can buckle the turning pin; the worm is connected with the motor; the worm is matched with the worm wheel shaft to drive the worm wheel shaft to rotate, so that the motor controls the overturning arm to overturn through the worm.
5. The toe suture fixing device according to claim 4, wherein the worm wheel shaft has worm gear teeth having a helix angle with an axial direction of the worm wheel shaft, the worm having worm gear teeth engaged with the worm gear teeth, the worm gear teeth being capable of moving helically back and forth along the worm gear teeth when the worm is stationary; when the worm rotates, the worm can drive the worm wheel shaft to rotate.
6. The toe suture fastening device of claim 4, wherein the invert arm is a curved bar having a 90 ° bend, the tail end of the invert arm is connected to the worm wheel shaft, and the free end of the invert arm has a snap groove for snap-locking the invert pin.
7. The sock head suture fixing device according to claim 1, wherein the first needle comprises a first needle bar, a first needle tip provided at one end of the first needle bar and a first fixed tail end provided at the other end of the first needle bar, the first needle bar having four edges, an outer surface of the first needle tip being formed into a first tip by a transition from one end to the other end of the first needle bar, the first needle tip being provided with a needle tip groove provided along an axial direction of the first needle tip; the second needle comprises a second needle rod, a second needle point arranged at one end of the second needle rod and a second fixed tail end arranged at the other end of the second needle rod, the second needle rod is provided with four edges, the outer surface of the second needle point is transitionally formed into a second pointed end from one end connected with the second needle rod to the cambered surface of the other end, the second pointed end corresponds to the needle point groove, when the turnover needle disc overturns the second needle to align with the first needle, the second pointed end is inserted into the needle point groove, and the outer surface of the second pointed end is lower than the outer surface of the first needle point.
8. The toe stitch fastening means as defined in claim 7, wherein the first shank of the first needle provided at the edge of the fixed dial is provided with a first recess provided transversely; the second needle bar of the second needle arranged at the edge of the turnover needle disc is provided with a second groove which is transversely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934102.9A CN108642726B (en) | 2018-08-16 | 2018-08-16 | Sock head sewing and fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934102.9A CN108642726B (en) | 2018-08-16 | 2018-08-16 | Sock head sewing and fixing device |
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| Publication Number | Publication Date |
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| CN108642726A CN108642726A (en) | 2018-10-12 |
| CN108642726B true CN108642726B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810934102.9A Active CN108642726B (en) | 2018-08-16 | 2018-08-16 | Sock head sewing and fixing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113914018A (en) * | 2021-09-26 | 2022-01-11 | 浙江嘉志利智能科技有限公司 | Sewing device of circular knitting machine |
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| CN105887324A (en) * | 2015-12-07 | 2016-08-24 | 浙江海润精工机械有限公司 | Transferring stitching head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4025512B2 (en) * | 2000-05-12 | 2007-12-19 | 丸善産業株式会社 | Socks toe sewing method and device |
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| JP2000303328A (en) * | 1999-04-15 | 2000-10-31 | Daito Seiki Co Ltd | Dial cam device and hosiery knitting machine |
| JP2001316959A (en) * | 2000-05-12 | 2001-11-16 | Nakahira Tomotake | Stocking-transfer needle for sewing up toe of stocking |
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| CN108642726A (en) | 2018-10-12 |
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