CN111206337A - Wide-needle-spacing three-needle comprehensive feeding lockstitch sewing machine - Google Patents
Wide-needle-spacing three-needle comprehensive feeding lockstitch sewing machine Download PDFInfo
- Publication number
- CN111206337A CN111206337A CN201811388625.4A CN201811388625A CN111206337A CN 111206337 A CN111206337 A CN 111206337A CN 201811388625 A CN201811388625 A CN 201811388625A CN 111206337 A CN111206337 A CN 111206337A
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- rotating shuttle
- needle
- frame
- tooth
- presser foot
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
- D05B1/12—Lock-stitch seams
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/10—Needle bars for multiple-needle sewing machines
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
Abstract
The invention discloses a three-needle comprehensive feeding lockstitch sewing machine with wide needle spacing, which comprises a rack, a bottom plate, a needle rod mechanism, a rotating shuttle feeding assembly and a machine shell, wherein the rack is provided with a plurality of guide rails; the bottom plate level is placed, and the casing is installed on the bottom plate, and the frame is connected to the casing upside, and the bottom plate is connected to the downside, and needle bar mechanism is connected to frame one side, and the casing is connected to one side, and the frame is located directly over the bottom plate, is equipped with rotating shuttle pay-off subassembly on the bottom plate, lies in rotating shuttle pay-off subassembly top on the needle bar mechanism spatial position. The invention is provided with three vertically placed needles, can sew three parallel lock-type stitches, the sewed stitches are neat and beautiful, and simultaneously ensure that the phenomena of needle breakage or needle jumping can not occur during material puncturing, and the stability is good.
Description
The invention relates to the technical field of lockstitch sewing machines, in particular to a wide-needle-spacing three-needle comprehensive feeding lockstitch sewing machine.
Background
Because some customers need to sew two thick materials together by three parallel lock-type stitches, but no sewing machine which can sew three parallel lock-type stitches at the same time exists in the current market, if three parallel lock-type stitches are sewed, the sewing can be finished by three single-needle sewing machines or one double-needle sewing machine and one single-needle sewing machine, thus the time and the labor are wasted, and the sewed stitches are neither neat nor beautiful.
Disclosure of Invention
The invention aims to provide a wide-needle-spacing three-needle comprehensive feeding flat sewing machine to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a three-needle comprehensive feeding flat sewing machine with wide needle spacing comprises a rack, a bottom plate, a needle rod mechanism, a rotating shuttle feeding assembly and a machine shell; the machine shell is installed on the bottom plate, one end of the rack is connected with the machine shell, the other end of the rack is connected with the needle rod mechanism, the rack is located right above the bottom plate, the rotating shuttle feeding assembly is arranged on the bottom plate, and the needle rod mechanism is located above the rotating shuttle feeding assembly in the spatial position. The cloth to be sewn is placed on the bottom plate, and the sewing of the cloth is realized through the movement of the rotating shuttle feeding assembly and the needle rod mechanism.
Further, the needle bar mechanism comprises a needle bar frame, an external presser foot bar, a needle clamp joint, a needle clamp, an internal presser foot, an external presser foot, a machine needle and an internal presser foot bar; the outer presser foot bar is a vertically placed cylinder, the outer presser foot bar is connected with the outer presser foot, the outer presser foot is in a rake shape, the rake teeth are horizontal, an outer presser foot head is connected with the lower end of the outer presser foot bar through screws, the inner presser foot bar is connected with the inner presser foot, the inner presser foot is in a rake shape, the rake teeth are horizontal, three inner presser foot holes are formed in the rake teeth, the inner presser foot rake teeth are embedded in the outer presser foot rake teeth, the inner presser foot head is connected with the lower end of the inner presser foot bar through screws, the needle bar is a vertically placed cylinder, the needle bar is connected with the needle clamp connector, the needle clamp connector is connected with the needle clamp through screws, the needle clamp is a horizontally placed cuboid, the needle clamp has three needles, the needles are vertically placed, the spatial positions of the needles are located above the inner presser foot holes, the outer presser foot bar, the inner presser foot bar and the needle bar are fixed on the needle bar frame, and the needle. The outer presser foot and the inner presser foot are arranged in a rake shape, the rake teeth are horizontal, the structural design is that the outer presser foot and the inner presser foot are in a rake shape for pressing cloth when sewing, the inner presser foot is in a rake shape, three inner presser foot holes are formed in the rake teeth and mainly correspond to holes of a cloth feeding tooth so as to facilitate the penetration of a machine needle, meanwhile, the needle bar is used for better pressing cloth, the needle bar plays a connecting role so as to facilitate the fixation of a needle clamp joint, three parallel lock-type stitches can be sewn under the needle clamp, meanwhile, the stitches are tidy and attractive, the outer presser foot bar, the inner presser foot bar and the needle bar are fixed on the needle bar frame, the needle bar frame is installed in the rack, when the needle bar swings back and forth, the machine needle swings back and forth along with the needle bar, when the needle bar moves up and down, the machine needle moves up and down, and down the inner presser foot bar and the outer presser.
Furthermore, the needle bar mechanism also comprises a first guide needle clamp, a second guide needle clamp and a guide frame; the guide frame is the cockscomb structure, and vertical the placing, both sides are equipped with the recess, and the guide frame passes through the fix with screw under the frame, first direction needle presss from both sides with the second direction needle presss from both sides and is the bar cubic, first direction needle press from both sides and second direction needle presss from both sides one side pass through the screw with the needle presss from both sides fixedly, and one side inlays in the recess of guide frame. The guide frame is arranged to be in a zigzag shape, the grooves are formed in the two sides of the guide frame, so that the first guide needle clamp and the second guide needle clamp are sleeved in the grooves, the phenomenon of needle skipping or needle breakage cannot occur easily when the needle is punched, the stable mechanical structure is achieved, and the phenomenon that the needle clamp cannot be twisted when the needle is punched is guaranteed.
Furthermore, a lower shaft hole and a cloth feeding shaft hole are arranged on the bottom plate, and the rotating shuttle feeding assembly comprises a cloth feeding shaft, a first cloth feeding shaft sleeve, a second cloth feeding shaft sleeve, a lower shaft, a first lower shaft sleeve, a second lower shaft sleeve, a first rotating shuttle frame, a first gear set, a first feeding assembly, a second gear set, a second rotating shuttle frame, a second feeding assembly, a third gear set, a third rotating shuttle frame, a first rotating shuttle, a second rotating shuttle, a third rotating shuttle, a first rotating shuttle frame upper clamping block, a first rotating shuttle frame lower clamping block, a second rotating shuttle frame upper clamping block and a second rotating shuttle frame lower clamping block; the cloth feeding device comprises a bottom plate, a first lower shaft sleeve, a second lower shaft sleeve, a cloth feeding shaft sleeve, a second cloth feeding shaft sleeve, a first cloth feeding shaft sleeve, a second cloth feeding shaft sleeve, a third cloth feeding assembly, a third rotating shuttle frame and a fourth rotating shuttle frame, wherein the lower shaft is a long rod, one end of the lower shaft is sleeved in the first lower shaft sleeve, the middle of the lower shaft is a hollow cylinder, the first lower shaft sleeve and the second lower shaft sleeve are fixed in a lower shaft hole on the bottom plate, the cloth feeding shaft is a long rod, one end of the lower shaft is sleeved in the first cloth feeding shaft sleeve, the middle of the lower shaft sleeve is sleeved in the second lower shaft sleeve, the first lower shaft sleeve and the second lower shaft sleeve are fixed in the lower shaft hole on the bottom plate, the cloth feeding; the first rotating shuttle frame is fixed on the first lower shaft sleeve through an upper clamping block of the first rotating shuttle frame, a lower clamping block of the first rotating shuttle frame and a screw, the first rotating shuttle frame is fixed on the bottom plate through the screw, a vertical hole is arranged on the first rotating shuttle frame, the first rotating shuttle is arranged in the vertical hole of the first rotating shuttle frame, the first gear set is arranged in the first rotating shuttle frame, the first feeding component is also fixed on the cloth feeding shaft, the first feeding component realizes the transmission of cloth, the second rotating shuttle frame is fixed on the bottom plate through the screw, a vertical hole is arranged on the second rotating shuttle frame, the second rotating shuttle is arranged in the vertical hole of the second rotating shuttle frame, the second gear set is arranged in the second rotating shuttle frame, the second feeding component is also fixed on the cloth feeding shaft, the third rotating shuttle frame is fixed on the second lower shaft sleeve through the screw, the third rotating shuttle frame is fixed on the bottom plate through the screw, and a vertical hole is formed in the third rotating shuttle frame, the third rotating shuttle is arranged in the vertical hole of the third rotating shuttle frame, and the third gear set is installed in the third rotating shuttle frame. The first rotating shuttle frame, the second rotating shuttle frame and the third rotating shuttle frame play a role in fixing and are fixed on the lower shaft sleeve through screws, the first gear set, the second gear set and the third gear set are arranged in the rotating shuttle frame and are used for driving the first rotating shuttle, the second rotating shuttle and the third rotating shuttle to rotate to realize wire outgoing, the first rotating shuttle, the second rotating shuttle and the third rotating shuttle are arranged in a vertical hole of the rotating shuttle frame, the first feeding assembly and the second feeding assembly realize the transmission of cloth, when sewing operation is carried out, the first feeding assembly and the second feeding assembly move the cloth forward, the lower shaft rotates to drive the gear set to rotate, the rotating shuttle shaft rotates along with the rotating shuttle shaft, so that the rotation of the rotating shuttle is realized, the rotating shuttle hooks a wire loop of a machine needle, and the rotating lock type shuttle head is interwoven with the shuttle wire to form a stitch.
Further, the first rotating shuttle comprises a first rotating shuttle shaft and a first rotating shuttle head; the upper side of the first rotating shuttle is provided with a first rotating shuttle head, the first rotating shuttle head is in a disc shape with a sunk groove, the middle of the first rotating shuttle head is provided with a vertically placed short rod, the lower side of the first rotating shuttle is provided with a first rotating shuttle shaft, the first rotating shuttle shaft is fixed in a first rotating shuttle frame, and the first rotating shuttle shaft is connected with a first gear set. The first gear set drives the first rotating shuttle shaft to rotate along with the rotation of the lower shaft, the rotation of the first rotating shuttle shaft drives the first rotating shuttle head to rotate, the first rotating shuttle head is arranged into a disc shape with a sunk groove, and the first rotating shuttle head is mainly used for hooking the wire loop, simultaneously enlarging the wire loop and leading the wire loop to surround the rotating shuttle head to form a lock stitch.
Further, the first gear set comprises a first gearwheel and a first pinion; the first bull gear is sleeved on the lower shaft, a first rotating shuttle shaft at the lower end of the first rotating shuttle penetrates through a shaft hole of the first pinion, the first bull gear is in meshing transmission with the first pinion, and the first rotating shuttle is in linkage with the first gear set. When the lower shaft rotates, the first gearwheel can rotate together with the first pinion, the first gearwheel is meshed with the first pinion, and the first gearwheel rotates to drive the first pinion to rotate, so that the first rotating shuttle rotates, and the thread is conveniently taken out.
Further, the first feeding assembly comprises a first tooth rack crank, a first tooth rack, a first cloth feeding tooth, a first feed lifting tooth cam and a first feed lifting tooth fork; the first feed dog mechanism is characterized in that the first feed dog crank is fixed on the feed shaft, a hollow first cylindrical sleeve with a notch is arranged below the first feed dog crank, first connecting lugs are arranged on two sides of the first cylindrical sleeve, the first feed dog crank is connected with the feed shaft sleeve at the left side, the first cylindrical sleeve of the first feed dog crank is sleeved on the feed shaft, one side of the first feed dog is hinged with the first connecting lug of the first feed dog crank, the first feed dog is arranged on the other side of the first feed dog, sawteeth are arranged on the first feed dog, two first feed dog holes are formed in the sawteeth, the spatial position of each first feed dog hole is positioned below a needle, the first feed dog fork is arranged on the first feed dog, a groove is formed in the first feed dog fork, the first feed dog cam is arranged in the groove of the first feed dog fork, and the first feed dog cam is sleeved on the lower shaft and is fixed on the lower shaft. The first tooth frame crank is used for fixing, the lower side of the first tooth frame crank is provided with a hollow cylinder with a notch, the upper side of the first tooth frame crank is provided with a first connecting lug for fixing the first tooth frame crank on a cloth feeding shaft conveniently, the first tooth frame and the first connecting lug are connected in a hinged mode for facilitating the movement of the first tooth frame when the cloth feeding shaft swings, the movement of the first tooth frame drives the movement of a first cloth feeding tooth, the first cloth feeding tooth is provided with sawteeth, the sawteeth are provided with two first cloth feeding tooth holes, cloth can be placed on the cloth feeding tooth, meanwhile, the needle can conveniently penetrate through the hole in the first feed dog for material stabbing, the first feed lifting cam moves along with the lower shaft when the lower shaft rotates, when the cloth feeding device rotates to the highest point, the first cloth feeding teeth reciprocate up and down, the cloth feeding shaft swings to realize the back and forth reciprocating motion of the first cloth feeding teeth, and the lower shaft rotates to realize the up and down reciprocating motion of the first cloth feeding teeth.
Further, the second feeding assembly comprises a second tooth rack crank, a second tooth rack, a second feed lifting cam, a second feed lifting fork and a second feed delivery tooth; a hollow cylindrical second cylindrical sleeve with a notch is arranged below the crank of the second tooth frame, second connecting lugs are arranged on two sides of the upper surface of the second cylindrical sleeve, one side of the second tooth frame is hinged with the second connecting lug of the crank of the second tooth frame, the second feed dog is arranged on the other side of the second tooth frame, sawteeth are arranged on the second feed dog, a second feed dog hole is formed in each sawtooth, the spatial position of the second feed dog hole is located below the needle, a second feed dog fork is arranged below the second tooth frame and used for mounting a second feed lifting cam, a groove is formed in each second feed dog fork, a second feed lifting cam is arranged in a groove of each second feed dog fork, and the second feed lifting cam is fixed on the lower shaft in a sleeved mode. The second tooth rack crank is used for fixing, the lower side of the second tooth rack crank is provided with a hollow cylinder with a notch, the upper side of the second tooth rack crank is provided with a second connecting lug which is used for fixing the second tooth rack crank on the cloth feeding shaft conveniently, the second tooth rack and the second connecting lug are connected in a hinged mode so as to facilitate the movement of the second tooth rack when the cloth feeding shaft swings, the movement of the second tooth rack drives the movement of the second cloth feeding tooth, the second cloth feeding tooth is provided with sawteeth, the sawteeth are provided with second cloth feeding tooth holes which can place cloth on the second cloth feeding tooth conveniently, a needle penetrates through the holes of the second cloth feeding tooth to stab the cloth, and the second tooth raising cam rotates along with the lower shaft when the lower shaft rotates, when the cloth feeding device rotates to the highest point, the second cloth feeding teeth reciprocate up and down, the cloth feeding shaft swings to realize the back and forth reciprocating motion of the second cloth feeding teeth, and the lower shaft rotates to realize the up and down reciprocating motion of the second cloth feeding teeth.
Compared with the prior art, the invention has the beneficial effects that: the invention adopts the needle bar frame to drive the needle bar to move, thereby realizing the movement of the needle clip, driving the three needles to move, sewing three parallel lock-type stitches, and ensuring that the three needles have good stability during the material needling through the guide frame, the first guide needle clip and the second guide needle clip.
Drawings
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a block diagram of the present invention with the frame, housing and base removed;
FIG. 3 is a top view of three shuttles and two feed dogs in accordance with the present invention;
FIG. 4 is an exploded view of the needle bar mechanism of the present invention;
FIG. 5 is an exploded view of the rotary shuttle feed assembly of the present invention;
FIG. 6 is a schematic view of a first feed assembly of the present invention;
FIG. 7 is a schematic structural view of a second feed assembly of the present invention;
FIG. 8 is a schematic structural view of a first gear set in accordance with the present invention;
fig. 9 is a schematic structural view of the first rotating shuttle of the present invention.
In the figure: 1-needle bar frame, 2-external presser bar, 3-guide frame, 4-needle bar, 5-needle clip joint, 6-first guide needle clip, 7-needle clip, 8-second guide needle clip, 9-internal presser foot, 91-internal presser foot hole, 10-external presser foot, 11-first rotating shuttle, 111-first rotating shuttle head, 112-first rotating shuttle shaft, 12-second rotating shuttle, 13-third rotating shuttle, 14-bottom plate, 141-cloth feeding shaft hole, 142-lower shaft hole, 15-machine shell, 16-internal presser foot bar, 22-first lower shaft sleeve, 23-first rotating shuttle frame upper clamping block, 24-first rotating shuttle frame, 25-first rotating shuttle frame lower clamping block, 28-first large gear, 29-first small gear, 31-first tooth lifting cam, 32-first feed lifting fork, 33-first feed rack, 34-first feed rack crank, 341-first cylindrical sleeve, 342-first connecting lug, 35-first feed dog, 351-first feed dog hole, 39-second rotating shuttle rack, 40-second feed lifting cam, 41-second feed lifting fork, 42-second feed dog, 421-second feed dog hole, 44-second feed rack, 45-second feed rack crank, 451-second cylindrical sleeve, 452-second connecting lug, 48-second rotating shuttle rack lower clamping block, 50-second rotating shuttle rack upper clamping block, 52-third rotating shuttle rack, 53-second lower shaft sleeve, 54-second feed shaft sleeve, 55-first feed shaft sleeve, 56-lower shaft, 57-feed shaft, 58-machine needle, 59-a rack, 60-a needle bar mechanism, 61-a rotary shuttle feeding component, 62-a first gear set, 63-the first feeding component, 64-a second gear set, 65-the second feeding component and 66-a third gear set.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a wide-needle-pitch three-needle integrated feeding flat sewing machine includes a frame 59, a bottom plate 14, a needle bar mechanism 60, a rotating shuttle feeding assembly 61, and a machine shell 15; the machine shell 15 is mounted on the bottom plate 14, one end of the rack 59 is connected with the machine shell 15, the other end of the rack 59 is connected with the needle bar mechanism 60, the rack 59 is positioned right above the bottom plate 14, the rotating shuttle feeding assembly 61 is arranged on the bottom plate 14, and the needle bar mechanism 60 is positioned above the rotating shuttle feeding assembly 61 in space position. The cloth to be sewn is placed on the base plate 14, and sewing of the cloth is achieved by the movement of the rotating shuttle feeding assembly 61 and the needle bar mechanism 60.
Referring to fig. 1, 2 and 4, the needle bar mechanism 60 includes a needle bar frame 1, an outer presser bar 2, a needle bar 4, a needle clamp joint 5, a needle clamp 7, an inner presser bar 9, an outer presser bar 10, a machine needle 58, an inner presser bar 16; the outer presser foot rod 2 is a vertically placed cylinder, the outer presser foot rod 2 is connected with the outer presser foot 10, the outer presser foot 10 is in a rake shape, rake teeth are horizontally placed, the head of the outer presser foot 10 is connected with the lower end of the outer presser foot rod 2 through a screw, the inner presser foot rod 16 is connected with the inner presser foot 9, the inner presser foot 9 is in a rake shape, the rake teeth are horizontal, the rake teeth are provided with three holes, the inner presser foot 9 rake teeth are embedded in the rake teeth of the outer presser foot 10, the head of the inner presser foot 9 is connected with the lower end of the inner presser foot rod 16 through a screw, the needle rod 4 is a vertically placed cylinder, the needle rod 4 is connected with the needle clamp joint 5, the needle clamp joint 5 is connected with the needle clamp 7 through a screw, the needle clamp 7 is a horizontally placed cuboid, three needles 58 are arranged under the needle clamp 7, the needles 58 are vertically placed, the spatial position of the needles 58 are located above the inner presser foot holes 91, the spatial position of the needles 58 are, the outer presser bar 2, the inner presser bar 16 and the needle bar 4 are fixed on the needle bar frame 1, and the needle bar frame 1 is installed in the frame 59. The outer presser foot 10 and the inner presser foot 9 are arranged in a rake shape, the rake teeth are horizontal, three holes are arranged on the rake teeth of the inner presser foot 9, mainly for corresponding to the holes of the feed dog to facilitate the penetration of a needle 58, meanwhile, in order to press cloth better, the needle rod 4 plays a connecting role, three needles 58 are vertically placed in order to facilitate the fixation of the needle clamp joint 5, the spatial position is positioned above the inner presser foot 9, the outer presser foot 10 and the cloth feeding tooth, three parallel lock-type stitches can be sewn out, the stitches are ensured to be tidy and beautiful, the outer presser foot rod 2, the inner presser foot rod 16 and the needle rod 4 are fixed on the needle rod frame 1, the needle rod frame 1 is arranged in the frame 59, when the needle bar frame 1 swings back and forth, the needle 58 swings back and forth, and when the needle bar 4 moves up and down, the needle 58 moves up and down, and the inner presser bar 16 and the outer presser bar 2 move up and down to drive the inner presser 9 and the outer presser bar 10 to move up and down.
Referring to fig. 1, 2 and 4, the needle bar mechanism 60 further includes a first guide needle holder 6, a second guide needle holder 8 and a guide frame 3; the guide frame 3 is of a sawtooth shape and is vertically placed, grooves are formed in two sides of the guide frame, the guide frame 3 is fixed to the lower portion of the rack 59 through screws, the first guide needle clamp 6 and the second guide needle clamp 8 are of a strip shape, one side of the first guide needle clamp 6 and one side of the second guide needle clamp 8 are fixed to the needle clamp 7 through screws, and one side of the first guide needle clamp and one side of the second guide needle clamp are embedded in the grooves of the guide frame 3. The first guide needle clamp 6 and the second guide needle clamp 8 are sleeved in the grooves of the guide frame 3 so as to ensure that the needle clamp 7 does not twist when the machine needle 58 is used for needling, and the phenomenon of needle skipping or needle breakage is not easy to occur when the machine needle is used for needling, so that the machine needle has a stable mechanical structure.
Referring to fig. 2, 3 and 5, a lower shaft hole and a feeding shaft hole are formed on the bottom plate 14, and the rotating shuttle feeding assembly 61 includes a feeding shaft 57, a first feeding shaft sleeve 55, a second feeding shaft sleeve 54, a lower shaft 56, a first lower shaft sleeve 22, a second lower shaft sleeve 53, a first rotating shuttle frame 24, a first gear set 62, a first feeding assembly 63, a second gear set 64, a second rotating shuttle frame 39, a second feeding assembly 65, a third gear set 66, a third rotating shuttle frame 52, a first rotating shuttle 11, a second rotating shuttle 12, a third rotating shuttle 13, a first rotating shuttle frame upper clamping block 23, a first rotating shuttle frame lower clamping block 25, a second rotating shuttle frame upper clamping block 50 and a second rotating shuttle frame lower clamping block 48; the lower shaft 56 is a long rod, one end 56 of the lower shaft is sleeved in the first lower shaft sleeve 22, the middle part of one end is sleeved in the second lower shaft sleeve 53, the first lower shaft sleeve 22 and the second lower shaft sleeve 53 are hollow cylinders, the first lower shaft sleeve 22 and the second lower shaft sleeve 53 are fixed in the lower shaft hole 142 on the bottom plate 14, the cloth feeding shaft 57 is a long rod, one end of the cloth feeding shaft 57 is sleeved in the first cloth feeding shaft sleeve 55, the middle part of one end is sleeved in the second cloth feeding shaft sleeve 54, the first cloth feeding shaft sleeve 55 and the second cloth feeding shaft sleeve 54 are hollow cylinders, the first cloth feeding shaft sleeve 55 and the second cloth feeding shaft sleeve 54 are fixed in the cloth feeding shaft hole 141 on the bottom plate 14, the first rotary shuttle frame 24, the first gear set 62, the first feeding assembly 63, the second gear set 64, the second rotary shuttle frame 39, the second feeding assembly 63, the second gear set 64, the second shuttle frame 39 and the second shuttle frame are sequentially arranged on the lower shaft 56 from the first lower, A second feeding assembly 65, a third gear set 66, a third rotating shuttle frame 52; the first rotating shuttle frame 24 is fixed on the first lower shaft sleeve 22 through a first rotating shuttle frame upper clamping block 23, a first rotating shuttle frame lower clamping block 25 and screws, the first rotating shuttle frame 24 is fixed on the bottom plate 14 through screws, the first rotating shuttle frame upper clamping block 23 and the first rotating shuttle frame lower clamping block 25 are used for fixing the first lower shaft sleeve 22, a vertical hole is formed in the first rotating shuttle frame 24, the first rotating shuttle 11 is arranged in the vertical hole of the first rotating shuttle frame 24, the first rotating shuttle frame 24 is provided with the first gear set 62, the first feeding assembly 63 is fixed on the cloth feeding shaft 57, the second rotating shuttle frame 39 is fixed on the bottom plate 14 through screws, a vertical hole is formed in the second rotating shuttle frame 39, the second rotating shuttle 12 is arranged in the vertical hole of the second rotating shuttle frame 39, the second gear set 64 is arranged on the second rotating shuttle frame 39, the second feeding assembly 65 is fixed on the cloth feeding shaft 57, and the third rotating shuttle frame 52 is fixed on the cloth feeding shaft 57 through screws and the second rotating shuttle frame upper clamping block 50, The second rotating shuttle frame lower clamping block 48 is fixed on the second lower shaft sleeve 53, the third rotating shuttle frame 52 is fixed on the bottom plate 14 through screws, the second rotating shuttle frame upper clamping block 50 and the second rotating shuttle frame lower clamping block 48 are used for fixing the second lower shaft sleeve 53, a vertical hole is formed in the third rotating shuttle frame 52, the third rotating shuttle 13 is arranged in the vertical hole of the third rotating shuttle frame 52, and the third rotating shuttle frame 52 is provided with the third gear set 66. The first rotating shuttle frame 24, the second rotating shuttle frame 39 and the third rotating shuttle frame 52 play a fixing role and are fixed on the lower shaft 56 through screws, the first gear set 62, the second gear set 64 and the third gear set 66 are arranged in the rotating shuttle frame and are used for driving the first rotating shuttle 11, the second rotating shuttle 12 and the third rotating shuttle 13 to rotate so as to realize line outgoing, the first rotating shuttle 11, the second rotating shuttle 12 and the third rotating shuttle 13 are arranged in a vertical hole of the rotating shuttle frame, the first feeding component 63 and the second feeding component 65 realize the transmission of cloth, when the cloth is sewn, the first feeding component 63 and the second feeding component 65 move the cloth forward, the rotation of the lower shaft 56 drives the gear set to rotate, the gear set drives the rotating shuttle shaft to rotate so as to enable the rotating shuttle to rotate, the rotating shuttle hooks a thread loop of a machine needle 58, and the rotating shuttle head is sleeved with the shuttle thread to be interwoven so as to form a lock stitch.
Referring to fig. 9, the first rotating shuttle 11 includes a first rotating shuttle shaft 112 and a first rotating shuttle head 111; the upper side of the first rotating shuttle 11 is provided with a first rotating shuttle head 112, the first rotating shuttle head 111 is in a disc shape with a sunk groove, the middle of the first rotating shuttle is provided with a vertically placed short rod, the lower side of the first rotating shuttle 11 is provided with a first rotating shuttle shaft 112, the first rotating shuttle head 111 is driven by the rotation of the first rotating shuttle shaft 112, the first rotating shuttle shaft 112 is fixed in the first rotating shuttle frame 24, the first rotating shuttle shaft 112 is connected with a first gear set 62, the first gear set 62 drives the first rotating shuttle shaft 112 to rotate along with the rotation of the lower shaft 56, the first rotating shuttle head 111 is driven by the rotation of the first rotating shuttle shaft 112 to rotate, the first rotating shuttle head 111 is in a disc shape with a sunk groove, and the purpose is mainly to enable the first rotating shuttle head 111 to hook the wire loop of the machine needle 58, and a guide wire surrounds the first rotating shuttle head 111 to form a lockstitch.
Referring to fig. 8, the first gear set 62 includes a first bull gear 28, a first pinion gear 29; the first rotating shuttle shaft 113 at the lower end of the first rotating shuttle 11 passes through the shaft hole of the first pinion 29, the first gearwheel 28 is in meshing transmission with the first pinion 29, and the first rotating shuttle 11 is linked with the first gear set 62. When the lower shaft 56 rotates, the first gearwheel 28 rotates together, the first gearwheel 28 is meshed with the first pinion 29, and the first pinion 29 is driven to rotate by the rotation of the first gearwheel 29, so that the first rotating shuttle 11 rotates, and the thread is conveniently taken out.
Referring to fig. 6, the first feeding assembly 63 includes a first rack crank 34, a first rack 33, a first feed dog 35, a first feed lifting cam 31, and a first feed lifting fork 32; a hollow first cylindrical sleeve 341 with a notch is arranged below the first tooth frame crank 34, first connecting lugs 342 are arranged on two sides of the upper side of the hollow first cylindrical sleeve 341, the first cylindrical sleeve 341 of the first tooth frame crank 34 is sleeved on the cloth feeding shaft 57, one side of the first tooth frame 33 is hinged with the first connecting lugs 342 of the first tooth frame crank 34, the other side of the first tooth frame 33 is provided with the first cloth feeding tooth 35, the first cloth feeding tooth 35 is provided with sawteeth, the sawteeth are provided with two first cloth feeding tooth holes 351, the spatial position of the first cloth feeding tooth holes 351 is positioned below the needle 58, the first tooth frame 33 is provided with a first tooth lifting fork 32, the first tooth lifting fork 32 is provided with a groove, a first tooth lifting cam 31 is arranged in the groove of the first tooth lifting fork 32, and the first tooth lifting cam 31 is sleeved on the lower shaft 56 for fixation. The first tooth frame crank 34 is used for fixing, a hollow first cylindrical sleeve 341 with a notch is arranged at the lower side of the first tooth frame crank 33, a first connecting lug 342 is arranged at the upper side of the first tooth frame crank 33, so that the first tooth frame crank 34 is conveniently fixed on the cloth feeding shaft 57, the first tooth frame 33 and the first connecting lug 342 are connected in a hinged mode, so that the first tooth frame 33 can conveniently move when the cloth feeding shaft 57 swings, the first tooth frame 33 moves to drive the first cloth feeding tooth 35 to move, the first cloth feeding tooth 35 is provided with sawteeth, two first cloth feeding tooth holes 351 are formed in the sawteeth, cloth can be placed on the cloth feeding tooth, a machine needle 58 can conveniently penetrate through the first cloth feeding tooth holes 35 for material punching, the first feed lifting cam 31 moves along with the lower shaft 56 when the lower shaft 56 rotates to the highest point, the first cloth feeding tooth 35 can reciprocate up and down when the lower shaft 56 rotates to the highest point, the cloth feeding shaft 57 swings to realize the back and forth movement of the first cloth feeding tooth 35, the rotation of the lower shaft 56 effects the up-and-down reciprocating motion of the first feed dog 35.
Referring to fig. 7, the second feeding assembly 65 includes a second rack crank 45, a second rack 44, a second feed lifting cam 40, a second feed lifting fork 41, and a second feed dog 42; a hollow second cylindrical sleeve 451 with a notch is arranged below the second tooth frame crank 45, second connecting lugs 452 are arranged on two sides of the upper surface of the hollow second cylindrical sleeve 451, the second cylindrical sleeve 451 of the second tooth frame crank 45 is sleeved on the cloth feeding shaft 57, one side of the second tooth frame 44 is hinged with the second connecting lugs 452 of the second tooth frame crank 45, the other side of the second tooth frame 44 is provided with the second cloth feeding teeth 42, the second cloth feeding teeth 42 are provided with saw teeth, the saw teeth are provided with second cloth feeding teeth holes 421, the spatial positions of the second cloth feeding teeth holes 421 are positioned below the machine needle 58, a second feed lifting tooth fork 41 is arranged below the second tooth frame 44, the second feed tooth fork 41 is provided with a groove, a second feed lifting tooth cam 40 is arranged in the groove of the second feed lifting tooth fork 41, and the second lifting tooth cam 40 is sleeved on the lower shaft 56 and fixed. The second tooth holder crank 45 is used for fixing, a hollow second cylindrical sleeve 451 with a notch is arranged at the lower side of the second tooth holder crank 45, a second connecting lug 452 is arranged at the upper side of the second tooth holder crank 45, so that the second tooth holder crank 45 is conveniently fixed on the cloth feeding shaft 57, the second tooth holder 44 and the second connecting lug 452 are connected in a hinged mode, so that the second tooth holder 44 can conveniently move when the cloth feeding shaft 57 swings, the second tooth holder 44 moves to drive the second cloth feeding tooth 42 to move, saw teeth are arranged on the second cloth feeding tooth 42, a second cloth feeding tooth hole 421 is formed in each saw tooth, cloth can be placed on the second cloth feeding tooth 42, a machine needle 58 can conveniently penetrate through the second cloth feeding tooth hole 421 to insert materials, the second feed cam 40 rotates along with the lower shaft 56 when the lower shaft 56 rotates to the highest point, the second cloth feeding tooth 42 can vertically reciprocate when the lower shaft 56 rotates to the highest point, and the cloth feeding shaft 57 swings to realize the back-and forth reciprocating motion of the second cloth feeding tooth 42, the rotation of the lower shaft 56 effects the up-and-down reciprocating motion of the second feed dog 42.
The comprehensive feeding is that the feed dog, the needle 58 and the inner presser foot 9 are simultaneously fed.
Movement of the first feed dog 35 and the second feed dog 42: the second feed shaft sleeve 54 and the first feed shaft sleeve 55 are fixed in a feed shaft hole 141 on the base plate 14, the first tooth holder crank 34 and the second tooth holder crank 45 are fixed on the feed shaft 57, the first tooth holder 33 is connected with the first tooth holder crank 34, the second tooth holder 44 is connected with the second tooth holder crank 45, the first feed dog 35 is fixed on the first tooth holder 33 through a screw, the second feed dog 42 is fixed on the second tooth holder 44 through a screw, and the swing of the feed shaft 57 realizes the reciprocating motion of the first feed dog 35 and the second feed dog 42 back and forth. The first feed dog cam 31 and the second feed dog cam 40 are sleeved and fixed on the lower shaft 56, the first feed dog fork 32 is fixed on the first tooth holder 33, the second feed dog fork 41 is fixed on the second tooth holder 44, the first feed dog cam 31 is arranged in a groove of the first feed dog fork 32, the second feed dog cam 40 is arranged in a groove of the second feed dog fork 41, and the lower shaft 56 rotates to drive the first feed dog 35 and the second feed dog 42 to reciprocate up and down.
Movement of the needle 58: the three machines 58 are fixed at the lower end of the needle clamp 7, the needle clamp 7 is fixed on the needle clamp joint 5 through the screw 21, the needle clamp joint 5 is connected with the needle rod 4, the needle rod 4 is sleeved in a hole on the needle rod frame 1, the up-and-down reciprocating motion of the needle rod 4 and the back-and-forth swing of the needle rod frame 1 are realized, and the up-and-down motion and the back-and-forth swing of the three machines 58 are realized. The guide frame 3 is fixed on the left lower end of the machine shell 15 through screws, the first guide needle clamp 6 and the second guide needle clamp 8 are respectively fixed on the left side and the right side of the needle clamp 7 through screws, the first guide needle clamp 6 is sleeved in a groove on the left side of the guide frame 3, and the second guide needle clamp 8 is sleeved in a groove on the right side of the guide frame 3, so that the needle clamp 7 is prevented from being distorted when the machine needle 58 pierces the material.
Movement of the inner presser foot 9: the inner presser foot 9 is sleeved on the lower end of the inner presser foot rod 16 and fixed by a screw 17, the inner presser foot rod 16 is sleeved in a hole on the needle bar frame 1 to realize the up-and-down reciprocating motion of the inner presser foot rod 16 and the back-and-forth swing of the needle bar frame 1, thereby realizing the up-and-down motion and the back-and-forth swing of the inner presser foot 9.
When the needle 58 and the inner presser foot 9 feed materials, the outer presser foot 10 needs to be separated from the sewing surface to ensure smooth feeding, the outer presser foot 10 is inserted into a groove at the lower end of the outer presser foot rod 2 and fixed by a screw, and the up-and-down reciprocating motion of the outer presser foot rod 2 is realized, so that the up-and-down reciprocating motion of the outer presser foot 10 is realized.
Rotation of the rotating shuttle: the first lower shaft sleeve 22 and the second lower shaft sleeve 53 are fixed in the lower shaft hole 142 of the bottom plate 14, the first rotating shuttle frame 24 is respectively fixed on the first lower shaft sleeve 22 and the bottom plate 14 by the first rotating shuttle frame upper clamping block 23, the first rotating shuttle frame lower clamping block 25 and screws, the second rotating shuttle frame 39 is fixed on the bottom plate 14 by screws, the third rotating shuttle 52 is respectively fixed on the bottom plate 14 and the second lower shaft sleeve 53 by screws, the second rotating shuttle frame upper clamping block 50 and the second rotating shuttle frame lower clamping block 48, the lower shaft 56 is sleeved in the vertical holes of the first lower shaft sleeve 22 and the second lower shaft sleeve 53, the gear sets are all fixed on the lower shaft 56, the first rotating shuttle 11, the second rotating shuttle 12 and the third rotating shuttle 13 are respectively sleeved in the vertical holes of the first rotating shuttle frame 24, the second rotating shuttle frame 39 and the third rotating shuttle frame 52, the pinion gears are respectively fixed on the shafts of the rotating shuttles, and the rotation of the lower shaft 56 drives the first rotating shuttle 11, the second rotating shuttle 12 and the second rotating shuttle 12, Rotation of the third rotary hook 13.
The implementation process comprises the following steps: cloth to be sewn is placed on the first cloth feeding tooth 35 and the second cloth feeding tooth 42, when the lower shaft 56 rotates, the first feed tooth cam 31 and the second feed tooth cam 40 move along with the lower shaft 56, when the lower shaft 56 rotates to the highest point, the first feed tooth 35 and the second feed tooth 42 are respectively driven to do up-and-down reciprocating motion, the swing of the cloth feeding shaft 57 drives the first feed tooth 35 and the second feed tooth 42 to do back-and-forth reciprocating motion, the up-and-down reciprocating motion of the inner presser bar 16 and the back-and-forth swing of the needle bar frame 1 drive the up-and-down motion and the back-and-forth motion of the inner presser bar 9, the up-and-down reciprocating motion of the outer presser bar 2 and the up-and-down reciprocating motion of the outer presser bar 10, the up-and-down reciprocating motion of the inner presser bar 9 and the outer presser bar 10 press the cloth, the up-and-down reciprocating motion of the needle bar 4 and the back-and forth swing of the needle bar frame 1 drive the three needles 58, thereby driving the first rotating shuttle 11, the second rotating shuttle 12 and the third rotating shuttle 13 to rotate, the rotating shuttles hook the thread loop of the machine needle 58 and are sleeved with the rotating shuttle head to be interwoven with the shuttle thread to form the lock stitch.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a pay-off flush joint machine is synthesized to wide needle interval three needles which characterized in that: the wide-needle-spacing three-needle comprehensive feeding lockstitch sewing machine comprises a rack (59), a bottom plate (14), a needle bar mechanism (60), a rotating shuttle feeding assembly (61) and a machine shell (15); the needle bar mechanism is characterized in that the machine shell (15) is installed on the bottom plate (14), one end of the rack (59) is connected with the machine shell (15), the other end of the rack is connected with the needle bar mechanism (60), the rack (59) is located right above the bottom plate (14), the rotating shuttle feeding assembly (61) is arranged on the bottom plate (14), and the needle bar mechanism (60) is located above the rotating shuttle feeding assembly (61) in the spatial position.
2. The wide needle spacing three-needle combined feeding flat sewing machine according to claim 1, characterized in that: the needle rod mechanism (60) comprises a needle rod frame (1), an outer presser foot rod (2), a needle rod (4), a needle clamp joint (5), a needle clamp (7), an inner presser foot (9), an outer presser foot (10), a machine needle (58) and an inner presser foot rod (16); the outer presser foot rod (2) is a vertically placed cylinder, the outer presser foot rod (2) is connected with the outer presser foot (10), the outer presser foot (10) is in a rake shape, the head of the outer presser foot (10) is connected with the lower end of the outer presser foot rod (2) through a screw, the inner presser foot rod (16) is connected with the inner presser foot (9), the inner presser foot (9) is in a rake shape, three inner presser foot holes (91) are formed in rake teeth, the rake teeth of the inner presser foot (9) are embedded in the rake teeth of the outer presser foot (10), the head of the inner presser foot (9) is connected with the lower end of the inner presser foot rod (16) through a screw, the needle rod (4) is a vertically placed cylinder, the needle rod (4) is connected with the needle clamp connector (5), the needle clamp connector (5) is connected with the needle clamp (7) through a screw, the needle clamp (7) is a horizontally placed cuboid, and three machine needles (58) are arranged below the needle clamp (, the sewing needle (58) is vertically placed, the spatial position of the sewing needle (58) is located above the inner presser foot hole (91), the outer presser foot rod (2), the inner presser foot rod (16) and the needle rod (4) are fixed on the needle rod frame (1), and the needle rod frame (1) is installed in the rack (59).
3. The wide needle spacing three-needle combined feeding flat sewing machine according to claim 2, characterized in that: the needle bar mechanism (60) further comprises a first guide needle clip (6), a second guide needle clip (8) and a guide frame (3); the guide frame (3) is of a saw-toothed shape and is vertically placed, grooves are formed in two sides of the guide frame, the guide frame (3) is fixed to the lower portion of the rack (59) through screws, the first guide needle clamp (6) and the second guide needle clamp (8) are in a bar shape, one side of the first guide needle clamp (6) and one side of the second guide needle clamp (8) are fixed to the needle clamp (7) through screws, and one side of the first guide needle clamp and one side of the second guide needle clamp are embedded in the grooves of the guide frame (3).
4. The wide needle spacing three-needle combined feeding flat sewing machine according to claim 3, characterized in that: a lower shaft hole (142) and a cloth feeding shaft hole (141) are formed in the bottom plate (14), the rotating shuttle feeding assembly (61) comprises a cloth feeding shaft (57), a first cloth feeding shaft sleeve (55), a second cloth feeding shaft sleeve (54), a lower shaft (56), a first lower shaft sleeve (22), a second lower shaft sleeve (53), a first rotating shuttle frame (24), a first gear set (62), a first feeding assembly (63), a second gear set (64), a second rotating shuttle frame (39), a second feeding assembly (65), a third gear set (66), a third rotating shuttle frame (52), a first rotating shuttle (11), a second rotating shuttle (12), a third rotating shuttle (13), a first rotating shuttle frame upper clamping block (23), a first rotating shuttle frame lower clamping block (25), a second rotating shuttle frame upper clamping block (50) and a second rotating shuttle frame lower clamping block (48); the lower shaft (56) is a long rod, one end (56) of the lower shaft is sleeved in the first lower shaft sleeve (22), the middle part of one end of the lower shaft is sleeved in the second lower shaft sleeve (53), the first lower shaft sleeve (22) and the second lower shaft sleeve (53) are hollow cylinders, the first lower shaft sleeve (22) and the second lower shaft sleeve (53) are fixed in a lower shaft hole (142) on the bottom plate (14), the cloth feeding shaft (57) is a long rod, one end of the cloth feeding shaft (57) is sleeved in the first cloth feeding shaft sleeve (55), the middle part of one end of the cloth feeding shaft is sleeved in the second cloth feeding shaft sleeve (54), the first cloth feeding shaft sleeve (55) and the second cloth feeding shaft sleeve (54) are hollow cylinders, the first cloth feeding shaft sleeve (55) and the second cloth feeding shaft sleeve (54) are fixed in a cloth feeding shaft hole (141) on the bottom plate (14), and the first shuttle frame (24) is screwed on the lower shaft (56) from the first lower shaft sleeve (22) to the second lower shaft sleeve (53), A first feeding component (63), a second rotating shuttle frame (39), a second feeding component (65) and a third rotating shuttle frame (52); the first rotating shuttle frame (24) is fixed on the first lower shaft sleeve (22) through a first rotating shuttle frame upper clamping block (23), a first rotating shuttle frame lower clamping block (25) and screws, the first rotating shuttle frame (24) is fixed on the bottom plate (14) through screws, vertical holes are arranged on the first rotating shuttle frame (24), the first rotating shuttle (11) is arranged in the vertical hole of the first rotating shuttle frame (24), the first gear set (62) is arranged in the first rotating shuttle frame (24), the first feeding component (63) is also fixed on the cloth feeding shaft (57), the second rotating shuttle frame (39) is fixed on the bottom plate (14) through screws, vertical holes are arranged on the second rotating shuttle frame (39), the second rotating shuttle (12) is arranged in the vertical hole of the second rotating shuttle frame (39), the second gear set (64) is arranged in the second rotating shuttle frame (39), and the second feeding component (65) is also fixed on the cloth feeding shaft (57), the third rotating shuttle frame (52) is fixed on the second lower shaft sleeve (53) through a screw, the upper clamping block (50) of the second rotating shuttle frame and the lower clamping block (48) of the second rotating shuttle frame, the third rotating shuttle frame (52) is fixed on the bottom plate (14) through a screw, a vertical hole is formed in the third rotating shuttle frame (52), the third rotating shuttle (13) is arranged in the vertical hole of the third rotating shuttle frame (52), and the third gear set (66) is installed in the third rotating shuttle frame (52).
5. The wide needle spacing three-needle combined feeding flat sewing machine according to claim 4, characterized in that: the first rotating shuttle (11) comprises a first rotating shuttle shaft (112) and a first rotating shuttle head (111); the upper side of the first rotating shuttle (11) is provided with a first rotating shuttle head (111), the first rotating shuttle head (111) is in a disc shape with a sunk groove, a vertically placed short rod is arranged in the middle of the first rotating shuttle head, a first rotating shuttle shaft (112) is arranged on the lower side of the first rotating shuttle (11), the first rotating shuttle shaft (112) is fixed in a first rotating shuttle frame (24), and the first rotating shuttle shaft (112) is connected with a first gear set (62).
6. The wide needle spacing three-needle combined feeding flat sewing machine according to claim 5, characterized in that: the first gear set (62) comprises a first gearwheel (28), a first pinion (29); the first large gear (28) is sleeved on the lower shaft (56), a first rotating shuttle shaft (113) at the lower end of the first rotating shuttle (11) penetrates through a shaft hole of the first small gear (29), the first large gear (28) is in meshing transmission with the first small gear (29), and the first rotating shuttle (11) is linked with the first gear set (62).
7. The wide needle spacing three-needle combined feeding flat sewing machine according to claim 6, characterized in that: the first feeding assembly (63) comprises a first dental frame crank (34), a first dental frame (33), a first cloth feeding tooth (35), a first feed lifting cam (31) and a first feed lifting fork (32); a first hollow cylindrical sleeve (341) with a gap is arranged below the first tooth frame crank (34), first connecting lugs (342) are arranged on two sides of the upper surface of the first tooth frame crank (34), the first cylindrical sleeve (341) of the first tooth frame crank (34) is sleeved on the cloth feeding shaft (57), one side of the first tooth frame (33) is hinged with a first connecting lug (342) of a first tooth frame crank (34), the other side is provided with the first cloth feeding teeth (35), the first cloth feeding teeth (35) are provided with saw teeth, the saw teeth are provided with two first cloth feeding teeth holes (351), the spatial position of the first cloth feeding tooth hole (351) is located below a needle (58), the first feed lifting tooth fork (32) is arranged below the first tooth frame (33), the first feed lifting tooth fork (32) is provided with a groove, the first feed lifting tooth cam (31) is arranged in the groove of the first feed lifting tooth fork (32), and the first feed lifting tooth cam (31) is sleeved on the lower shaft (56) and fixed.
8. The wide needle spacing three-needle combined feed flat sewing machine according to claim 7, characterized in that: the second feeding assembly (65) comprises a second tooth rack crank (45), a second tooth rack (44), a second feed lifting cam (40), a second feed lifting fork (41) and a second feed dog (42); a hollow second cylindrical sleeve (451) with a gap is arranged below the second tooth rack crank (45), second connecting lugs (452) are arranged on two sides of the upper surface of the second tooth rack crank (45), the second cylindrical sleeve (451) of the second tooth rack crank (45) is sleeved on the cloth feeding shaft (57), one side of the second tooth frame (44) is hinged with a second connecting lug (452) of a second tooth frame crank (45), the other side is provided with the second cloth feeding teeth (42), the second cloth feeding teeth (42) are provided with saw teeth, the saw teeth are provided with a second cloth feeding teeth hole (421), the spatial position of the second feed dog hole (421) is positioned below the needle (58), the second feed dog fork (41) is arranged below the second tooth holder (44), the second feed dog fork (41) is provided with a groove, the second feed dog cam (40) is arranged in the groove of the second feed dog fork (41), and the second feed dog cam (40) is sleeved on the lower shaft (56) and fixed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811388625.4A CN111206337B (en) | 2018-11-21 | 2018-11-21 | Wide-needle-spacing three-needle comprehensive feeding lockstitch sewing machine |
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| CN201811388625.4A CN111206337B (en) | 2018-11-21 | 2018-11-21 | Wide-needle-spacing three-needle comprehensive feeding lockstitch sewing machine |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066179A (en) * | 2000-08-28 | 2002-03-05 | Pegasus Sewing Mach Mfg Co Ltd | Multi-thread chain sewing machine |
| CN2501894Y (en) * | 2001-09-19 | 2002-07-24 | 徐俊刚 | Multi-needle sewing machine |
| CN1400350A (en) * | 2001-07-27 | 2003-03-05 | 大和缝纫机制造株式会社 | Sewing machine |
| JP2003135872A (en) * | 2001-11-08 | 2003-05-13 | Juki Corp | Zigzag stitch sewing machine |
| CN201952620U (en) * | 2010-12-16 | 2011-08-31 | 崑洲实业(上海)有限公司 | Needle bar swinging mechanism for sewing machine |
| CN203187940U (en) * | 2013-04-08 | 2013-09-11 | 彭晓文 | Three-needle compound feeding flat sewing machine |
| TWM478035U (en) * | 2013-12-27 | 2014-05-11 | Wang hao cheng | Sewing machine feeding structure |
| CN203754958U (en) * | 2013-09-04 | 2014-08-06 | 刘炽忠 | Wide needle site set for sewing machine |
| JP2017136220A (en) * | 2016-02-04 | 2017-08-10 | 星鋭縫▲じん▼機股▲ふん▼有限公司 | Sewing machine needle retainer |
| CN207987489U (en) * | 2018-02-26 | 2018-10-19 | 李佳娣 | The punch block component of arbitrary needle position carving hole knife |
-
2018
- 2018-11-21 CN CN201811388625.4A patent/CN111206337B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066179A (en) * | 2000-08-28 | 2002-03-05 | Pegasus Sewing Mach Mfg Co Ltd | Multi-thread chain sewing machine |
| CN1400350A (en) * | 2001-07-27 | 2003-03-05 | 大和缝纫机制造株式会社 | Sewing machine |
| CN2501894Y (en) * | 2001-09-19 | 2002-07-24 | 徐俊刚 | Multi-needle sewing machine |
| JP2003135872A (en) * | 2001-11-08 | 2003-05-13 | Juki Corp | Zigzag stitch sewing machine |
| CN201952620U (en) * | 2010-12-16 | 2011-08-31 | 崑洲实业(上海)有限公司 | Needle bar swinging mechanism for sewing machine |
| CN203187940U (en) * | 2013-04-08 | 2013-09-11 | 彭晓文 | Three-needle compound feeding flat sewing machine |
| CN203754958U (en) * | 2013-09-04 | 2014-08-06 | 刘炽忠 | Wide needle site set for sewing machine |
| TWM478035U (en) * | 2013-12-27 | 2014-05-11 | Wang hao cheng | Sewing machine feeding structure |
| JP2017136220A (en) * | 2016-02-04 | 2017-08-10 | 星鋭縫▲じん▼機股▲ふん▼有限公司 | Sewing machine needle retainer |
| CN207987489U (en) * | 2018-02-26 | 2018-10-19 | 李佳娣 | The punch block component of arbitrary needle position carving hole knife |
Non-Patent Citations (1)
| Title |
|---|
| 闻力生，章文俊: "工缝机的差动送料机构与缝纫性能", 《中国纺织大学学报》 * |
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