CN105734847B

CN105734847B - Sewing machine with thread-off prevention line wire picking device

Info

Publication number: CN105734847B
Application number: CN201610125687.0A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xuzhou Lida Sewing Equipment Manufacturing Co Ltd
Current assignee: Xuzhou Lida sewing equipment manufacturing Co., Ltd.
Priority date: 2016-03-07
Filing date: 2016-03-07
Publication date: 2018-08-21
Anticipated expiration: 2036-03-07
Also published as: CN108315890A; CN108589077A; CN108315891A; CN108265412A; CN105734847A; CN108265410A; CN108301135A; CN108265411A; CN108486780A

Abstract

The invention discloses a kind of sewing machines with thread-off prevention line wire picking device, including head, engine base and transmission mechanism, transmission mechanism is connected with thread take-up tension lever, it is characterized in that thread take-up tension lever end is equipped with threading hole, thread take-up tension lever end is cased with a female outward-facing mother viscose button set, mother viscose button, which is put on, to be equipped with threading hole to its via, the upper sub- thread gluing of mother viscose button set can be sticked to by being correspondingly provided with mother viscose button set, the first hook is connected in sub- thread gluing, the second hook with the first hook mounting is connected on head, thread take-up tension lever comes downwards to stroke one third to sub- thread gluing and mother viscose button set disengaging under the traction of the first hook and the second hook between 3/4ths；Suture is pulled out downwards when thread take-up tension lever downlink, is reserved loop line surplus for upward stroke, is avoided upward stroke that line is pulled out pin hole, structure is brief, easy to implement.

Description

Sewing machine with thread-off prevention line wire picking device

Technical field

The present invention relates to a kind of sewing machine component, especially a kind of sewing machine with thread-off prevention line wire picking device.

Background technology

Sewing machine be make the essential tool of clothes, it is efficient, workmanship it is high-quality, typically have head, machine Seat and transmission mechanism and attachment form, and thread take-up tension lever is one of component, can tense suture upwards in vehicle, ensure seam The quality of clothing object, but when existing take-up linkage works still have shortcoming, after initial eedle penetrates lead, thread take-up tension lever the One stroke is easy to the line penetrated pulling out pin hole, must thread again, time-consuming and laborious, this is still subject to up for technological innovation It solves.

Invention content

To solve the above-mentioned problems, the present invention provides a kind of sewing machines with thread-off prevention line wire picking device.

The technical solution adopted by the present invention is：A kind of sewing machine with thread-off prevention line wire picking device, including head, engine base and biography Motivation structure, transmission mechanism are connected with thread take-up tension lever, it is characterised in that thread take-up tension lever end is equipped with threading hole, and thread take-up tension lever end is cased with a mother Outward-facing mother viscose button set, mother viscose button are put on equipped with the via being aligned with threading hole, and mother can be sticked to by being correspondingly provided with mother viscose button set Thread gluing covers upper sub- thread gluing, and the first hook is connected in sub- thread gluing, and the second hook with the first hook mounting is connected on head, Thread take-up tension lever comes downwards to stroke one third to sub- thread gluing is glued with mother under the traction of the first hook and the second hook between 3/4ths Retaining ring is detached from.

The present invention could also say that a kind of anti-sewing machine for taking out line, the sub- thread gluing are sticked to mother viscose button and put on covering threading Hole.

The present invention could also say that a kind of sewing machine of thread-off prevention line, the mother viscose button set inner face are bonded in thread take-up tension lever end On.

The present invention could also say that a kind of sewing machine of the take-up component with thread-off prevention line, the mistake of mother viscose button set both sides Bore edges are connected by suture.

The present invention could also say that a kind of sewing machine of improvement, and first hook and the second hook are a traction rope.

The present invention could also say that a kind of sewing machine with elastic force hook device, first hook and the second hook for The hook of opening port.

Further, the elastic force hook that first hook and the second hook are closed for opening elastic force.

Further, first hook and/or the second hook are a ring with gap, and one end of ring is fixedly connected with bullet The other end of piece, ring is equipped with inclined-plane, and shrapnel free end is located at outside ring, and is overlapped on the inclined-plane of ring.

Further, it is equipped with a ring segment being aligned with threading hole at the threading hole, 3 or 4 are circumferentially on ring segment A shrapnel gradually drawn close to ring segment axis, the end inner face that shrapnel is gradually drawn close to ring segment axis are equipped with pawl.

Further, the end that the shrapnel is gradually drawn close to ring segment axis is equipped with enters the oblique of pull-out suitable for suture Angle.

Further, the head upper is equipped with vertical shaft, and head edge is equipped with the oblique support arm flexed outward, and support arm outer end is set There is wire guide, the side that track is moved back and forth in thread take-up tension lever is equipped with a trunnion axis being fixedly connected with head, is connected on trunnion axis There is axle sleeve, oriented separate thread take-up tension lever is connected on axle sleeve, the overturning support arm that horizontal direction stretches, overturning support arm is equipped with close to outer end and hangs Terminal, overturning support arm outer end are equipped with positioning and lack, and locating notch is corresponded to when overturning support arm horizontal position equipped with positioning jump ring, on axle sleeve The reset branch that oriented thread take-up tension lever moves back and forth the stretching, extension of track hypomere is connected, support arm outer end bending, the arc of crooked position are resetted Outside probes into thread take-up tension lever and moves back and forth track end position on the lower, and head is equipped with a torsional spring, and one end is fixed on head, another End acts on overturning support arm and erects direction to overturning support arm and exerts a force.

Thread take-up tension lever is adjusted to by present invention handwheel of rotation sewing machine in the end of thread take-up tension lever setting mother viscose button set, use Sub- thread gluing is bonded in mother viscose button after threading and put on by a high position, pushes down suture, and when thread take-up tension lever downlink pulls out downwards suture, is upward Stroke reserves loop line surplus, avoids upward stroke that line is pulled out pin hole, and the setting by linking up with position and length makes under thread take-up tension lever Sub- thread gluing and mother viscose button set disengaging under the traction of the first hook and the second hook between going to stroke one third to 3/4ths, Sub- thread gluing only bonds downward bracing wire with mother viscose button set when sewing the first needle, and being in discrete state thereafter does not influence take-up, knot Structure is brief, easy to implement.

Description of the drawings

Fig. 1 is one overall structure diagram of the embodiment of the present invention and partial enlarged view.

Fig. 2 is one thread take-up tension lever decomposition texture schematic diagram of the embodiment of the present invention.

Fig. 3 is two hook structure schematic diagram of the embodiment of the present invention.

Fig. 4 is three hook structure schematic diagram of the embodiment of the present invention.

Fig. 5 is four overall structure diagram of the embodiment of the present invention and partial enlarged view.

Fig. 6 is four decomposition texture schematic diagram of the embodiment of the present invention and partial enlarged view.

Fig. 7 is five overall structure diagram of the embodiment of the present invention.

Fig. 8 is five decomposition texture schematic diagram of the embodiment of the present invention.

Figure label title：1 head；2 thread take-up tension levers；3 threading holes；4 mother viscose button sets；5 vias；6 sub- thread gluings；7 first hooks； 8 second hooks；9 steel wires；10 hook ends；11 rings；12 shrapnels；13 inclined-planes；14 ring segments；15 shrapnels；16 pawls；17 vertical shafts；18 tiltedly Support arm；19 wire guides；20 trunnion axis；21 axle sleeves；22 overturning support arms；23 wiring columns；24 locating notches；25 positioning jump rings；26 is multiple Position support arm；27 torsional springs；28 limit protrusions；29 reverse wheels.

Specific implementation mode

The embodiment of the present invention one is as shown in Figure 1, 2, the sewing machine with thread-off prevention line wire picking device, including head 1, engine base and Transmission mechanism, head are the major parts of sewing machine, and each mechanism kinematic closes cooperation cycle operation, sewing can be united by a seam, Head is connected on engine base, and engine base can be used for workbench, and transmission mechanism ensures that each mechanism co-operating, transmission mechanism are connected with Thread take-up tension lever 2, thread take-up tension lever end are equipped with threading hole 3, and thread take-up tension lever end is cased with a female outward-facing mother viscose button set 4, and mother viscose button set is The set of thread take-up tension lever end can be sleeved on made of nylon adherent buckle sewing or thermoforming, mother viscose button is put on equipped with the mistake being aligned with threading hole Hole 5, for threading, the upper sub- thread gluing 6 of mother viscose button set can be sticked to by being correspondingly provided with mother viscose button set, and the first extension is connected in sub- thread gluing Hook 7 is connected with the second hook 8 with the first hook mounting on head, links up with length and position ensures that thread take-up tension lever comes downwards to stroke One third between 3/4ths under the traction of the first hook and the second hook thread gluing and mother viscose button set disengaging, the present embodiment First hook and the second hook are the hook with opening port.Mother viscose button set is arranged in the end of thread take-up tension lever in the present embodiment, uses Thread take-up tension lever is adjusted to high-order by the handwheel of Shi Xuanzhuan sewing machines, and sub- thread gluing, which is bonded in mother viscose button, after threading puts on, and pushes down suture, Suture is pulled out downwards when thread take-up tension lever downlink, is reserved loop line surplus for upward stroke, is avoided upward stroke that line is pulled out pin hole, pass through The setting of hook position and length makes thread take-up tension lever come downwards to stroke one third to hang in the first hook and second between 3/4ths Sub- thread gluing is detached from mother viscose button set under the traction of hook, and sub- thread gluing only bonds downward bracing wire with mother viscose button set when sewing the first needle, Thereafter being in discrete state does not influence take-up, and the end of a thread of the first needle can reserve brief, reduction later stage trimming, structure letter It is short, it is easy to implement.

The embodiment of the present invention two as shown in figure 3, the sewing machine with thread-off prevention line wire picking device in order to improve more reliable company The elastic force hook that the first hook and/or the second hook are closed for opening elastic force is connect, is molded by steel wire 9, hook end 10 is leaned against by elastic force The annular of closure is formed on coupler body, reliable elastic force, which is opened, to be fastened, and connection is more secured.

The embodiment of the present invention three is as shown in figure 4, the hook of sewing machine first and/or the second extension with thread-off prevention line wire picking device Hook is a ring 11 with gap, and one end of ring is fixedly connected with shrapnel 12, and the other end of ring is equipped with inclined-plane 13, shrapnel free end position It in outside ring, and is overlapped on the inclined-plane of ring, by shrapnel by inclined-plane indentation ring, shrapnel abuts ring inner wall, and imperforation is led when use Draw deformation small, connection is more reliable.

The embodiment of the present invention four is as shown in Figure 5,6, be equipped at the sewing machine threading hole with thread-off prevention line wire picking device one with The ring segment 14 of threading hole alignment, ring segment is fixed by screws in thread take-up tension lever end, be circumferentially on ring segment 3 or 4 to The shrapnel 15 that ring segment axis is gradually drawn close, the end inner face that shrapnel is gradually drawn close to ring segment axis are equipped with pawl 16, shrapnel The end gradually drawn close to ring segment axis, which is equipped with, to be suitable for suture and enters the oblique angle of pull-out, is formed horn-like, and when use rotates Thread take-up tension lever is adjusted to high-order by the handwheel of sewing machine, and threading can be passed through by the gap of shrapnel root, and bracing wire can be caught in by monopolization, be chosen The first down stroke of line bar under inverted tooth-like effect can downward bracing wire, uplink will not off-line, when upward take-up chooses tight in formality stroke Line can be by drawing close abjection, into conventional sewing.

The embodiment of the present invention five is as shown in Figure 7,8, the sewing machine with thread-off prevention line wire picking device, is equipped in head upper vertical Axis 17, for placing spool, head edge is equipped with the oblique support arm 18 flexed outward, and support arm outer end is equipped with wire guide 19, in take-up The side that bar moves back and forth track is equipped with a trunnion axis 20 being fixedly connected with head, and axle sleeve 21, axle sleeve are connected on trunnion axis Oriented separate the thread take-up tension lever of upper connection, horizontal direction stretching, extension overturning support arm 22, overturning support arm, equipped with wiring column 23, turns over close to outer end Turn support arm outer end and be equipped with locating notch 24, locating notch is corresponded to when overturning support arm horizontal position equipped with positioning jump ring 25, on axle sleeve The reset support arm 26 that oriented thread take-up tension lever moves back and forth the stretching, extension of track hypomere is connected, support arm outer end bending is resetted, crooked position Thread take-up tension lever is probeed on the outside of arc and moves back and forth track end position on the lower, and head is equipped with a torsional spring 27, and one end is fixed on head On, the other end acts on overturning support arm and erects direction to overturning support arm and exerts a force, and spool is placed on vertical shaft by when use, by line Line on axis is passed through by wire guide, around the threading hole being then passed through after wiring column on thread take-up tension lever, pin hole is eventually passed through, in thread take-up tension lever Drop to bottom or risen all to touch by bottom and reset support arm outer end crooked position, reset support arm is made to drive axle sleeve, overturning Support arm generates swing offset, and locating notch is made to be detached from positioning jump ring, and then overturning support arm is holded up under the effect of torsion spring, holds up angle It can be adjusted by the way that the position of limit protrusion 28 is arranged on head, overturning support arm overturning wiring column loses the support to line, makes line There are loose surplus, further prevent off-line, when use line may also pass through reverse wheel 29 across threading hole, make every time it is remaining Amount is consistent；Threading sequence can also be that first threading hole arrives wiring column again, then at pin hole, only surplus stays in threading hole when use Lower section anti-off effect is more preferable.

When implementation, sub- thread gluing is sticked to mother viscose button and puts on covering threading hole, and fixation is more reliable；Mother viscose button set inner face, which is bonded in, to be chosen On line bar end, also can mother viscose button set both sides via edges connected by suture, improve connection reliability；First hook and the Two hooks are a traction rope, it is easier to which adjustment length, unhook position are more easily controlled.

It is only in summary the specific embodiment of the invention, but is not limited to embodiment, it can also each technical characteristic group again Close more realization methods, it is all without departing from the inventive concept, the equivalent modification and the prior art done according to the application Addition is accordingly to be regarded as the technology of the present invention scope.

Claims

1. a kind of sewing machine with thread-off prevention line wire picking device, including head, engine base and transmission mechanism, transmission mechanism are connected with take-up Bar, it is characterised in that thread take-up tension lever end is equipped with threading hole, and thread take-up tension lever end is cased with a female outward-facing mother viscose button set, mother viscose button set It is equipped with the via being aligned with threading hole, the upper sub- thread gluing of mother viscose button set can be sticked to by being correspondingly provided with mother viscose button set, in sub- thread gluing It is connected with the first hook, the second hook with the first hook mounting is connected on head, thread take-up tension lever comes downwards to stroke one third Sub- thread gluing and mother viscose button set are detached under the traction of the first hook and the second hook between to 3/4ths, first hook with/ Or second hook be a ring with gap, one end of ring is fixedly connected with shrapnel, and the other end of ring is equipped with inclined-plane, shrapnel free end Outside ring, and it is overlapped on the inclined-plane of ring.