CN201351219Y

CN201351219Y - Cloth conveying teeth linkage device

Info

Publication number: CN201351219Y
Application number: CNU2008201809973U
Authority: CN
Inventors: 吴金辉
Original assignee: K-CHANCE SEWING MACHINE DEVELOPMENT Co Ltd
Current assignee: K-CHANCE SEWING MACHINE DEVELOPMENT Co Ltd
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-11-25
Anticipated expiration: 2018-12-11

Abstract

The utility model relates to a cloth conveying teeth linkage device, which comprises two movable bars. The front ends of the movable poles are respectively connected and provided with front cloth conveying teeth and back cloth conveying teeth. An adjusting bar set is respectively arranged between the two movable bars and the loop bar of a main bar component. That is to say, two swing bars are respectively arranged under the loop bar at two sides and the loop bar respectively perforates the guide seat of the adjusting bar set by a pivot by using the swing bars. An adjusting button at the other end of the flitting bar of the two adjusting bar sets is respectively arranged at the outer side in front of or at the back of a straight barrel frame. With the improvement, the front displacement distance and the back displacement distance of the front cloth conveying teeth and the back cloth conveying teeth can be adjusted by operating the flitting bar in front of and at the back of the straight barrel frame; consequently, the aim of adjusting the cloth conveying quantity can be reached.

Description

The work feed tooth linkage of Sewing machines

Technical field

The utility model is meant a kind of work feed tooth linkage of Sewing machines, and finger is relevant for the work feed tooth linkage of the Sewing machines in the cloth feed amount adjustment structure field of forward and backward work feed tooth especially.

Background technology

Because textile technology is increasingly mature, along with the cloth development of science and technology, developed various material characteristic and the different cloth of traditional cloth now, and be the design of the various complexity of cooperation designer, so bind also progress simultaneously can adapt with it.Again, the Sewing machines of early stage single work feed tooth in the face of the current brand-new cloth (as having elastomeric cloth) and the different designs (as being formed with fold person behind the sewing naturally) of dress ornament, obviously is not enough to deal with.Before so employing has mostly at present, the Sewing machines of two the work feed teeth in back adapts with it, wherein, the function of preceding work feed tooth is equivalent to the function of above-mentioned single work feed tooth, if change its shift motion, then can control the thickness pin of sewing cloth, the shift motion of work feed tooth was adjusted before then the function of work feed tooth then need be answered, make the rear end go into the cloth of sewing position than slow-motion, because of the cloth amount of bringing into of back work feed tooth and the cloth amount of bringing into identical or also more or less (being commonly called as differential ratio) of preceding work feed tooth, promptly can produce the smooth or compress of sewing face also or the different situations of fold, so can adapt to the costume design of elastomeric now cloth and various complexity.

From the above, as shown in Figure 1, should have Sewing machines now, be to utilize the main shaft 10 of a transmission to transmit power, and its work feed tooth interlock unit includes a link assembly 20, a mobile jib assembly 30, an adjusting rod group 40 and two carriage release levers 50, and wherein an end of this link assembly 20 is attached to the main shaft 10 of Sewing machines, and the other end is an extension bar 201 (for another Fig. 2,3), and when this main shaft 10 rotated, this extension bar 201 can be the swing of special angle.And comprising one, this mobile jib assembly 30 fastens bar 301, one loop bar 302, this fastens bar 301 levels and fastens in the straight tube support a 1 of Sewing machines, and wear this loop bar 302, and this extension bar 201 tightly is placed in this loop bar 302 outsides, a fork 303 (as Fig. 2) is extended in a side in the below of this loop bar 302 again, and this adjusting rod group 40 has a trace 401 and an accent moving mechanism 402, one end of this trace 401 sets firmly a guide bracket 4011, guide bracket 4011 is worn by these fork 303 pivots, and this accent moving mechanism 402 comprises pole group 4021 and one allocating bar 4022, one end of this pole group 4021 and this allocating bar 4022 articulate, the other end of this pole group 4021 and guide bracket 4011 articulate, and with the articulated section of pole group 4021 and allocating bar 4022 is that fulcrum A is when stirring this allocating bar 4022, this trace 401, guide bracket 4011 displacements, and cause this guide bracket 4011 in these fork 303 upper and lower displacements (as Fig. 4,5), again, the outer end of this allocating bar 4022 is one to be positioned at the adjusting knob 4023 in the outside, straight tube support a1 rear.

In addition, this two carriage release lever 50 comprises a preceding carriage release lever 501 and a back carriage release lever 502 that is abutted against mutually, a work feed tooth 503 and a back work feed tooth 504 before its front end connects respectively and establishes one, and should wear this back carriage release lever 502 corresponding elongated slots 5021 (as Fig. 2,3) that are provided with a guide rod 5011 pivots by preceding carriage release lever 501, the other end of this trace 401 is articulated in this back carriage release lever 502 (as Fig. 3) in addition.In view of the above, can make when moving on the guide bracket 4011 on the carriage release lever 502 of back and move (for another Fig. 4), the front and back displacement stroke of back work feed tooth 504 is shortened, otherwise, when moving down, guide bracket 4011 can make back carriage release lever 502 move down (for another Fig. 5), make this moment the front and back displacement stroke of back work feed tooth 504 elongated, the cloth feed amount that so can regulate back work feed tooth 504 makes adjusting knob 4023 be tightened in straight tube support a1 again and gets final product after regulating.

Yet, hold as can be known should before carriage release lever 501 stroke sizes can't be conditioned, so under the sewing functional requirement of various special clothes now, can't adapt to really, therefore, reality remains to be improved.

The utility model content

Edge this, because the deficiency of existing apparatus, the purpose of this utility model is to make this preceding carriage release lever also can be conditioned the stroke size, with effective lifting allomeric function, that is to say, as if respectively establishing an adjusting rod group between the loop bar that makes this two carriage release lever and mobile jib assembly, can reach this target, make the front and back shift length of forward and backward work feed tooth all can carry out the adjustment of cloth feed amount.

For achieving the above object, work feed tooth interlock of the present utility model unit includes a link assembly, a mobile jib assembly, two adjusting rod groups and two carriage release levers, wherein, one end of this link assembly is attached to the main shaft of Sewing machines, the other end is an extension bar, and when this main shaft rotated, this extension bar was the swing of special angle; And having one, this mobile jib assembly fastens bar, a loop bar, this fastens the bar level and fastens in the straight tube support of Sewing machines, and wear this loop bar, this extension bar tightly is placed in this loop bar outside in addition, and the below of this loop bar is respectively equipped with one first fork and one second fork in both sides again.

This two adjusting rods group respectively is provided with a trace and and transfers moving mechanism, one end of this two trace respectively sets firmly a guide bracket, two guide brackets are worn by first and second fork pivot respectively, and this accent moving mechanism respectively comprises an allocating bar, one end of this allocating bar is pivoted to guide bracket, and the other end is respectively an adjusting knob that is positioned at outside the forward and backward side of straight tube support, and when stirring this allocating bar, this trace, guide bracket are displacement, and cause this guide bracket respectively at this first and second fork upper and lower displacement; And this two carriage release lever is a preceding carriage release lever and a back carriage release lever that is abutted against, a work feed tooth or a back work feed tooth before its front end connects respectively and establishes one, and should before carriage release lever set firmly a guide rod pivot and wear this back carriage release lever, and this back carriage release lever is established an elongated slot provides this guide rod to wear, and the other end of this two trace is articulated in this forward and backward carriage release lever respectively in addition.

Hold, the loose joint piece that respectively is pivoted in the guide bracket of this two adjusting rods group, and the loose joint piece respectively establishes a hole, and hole provides this first and second fork to wear.Again this accent moving mechanism each comprise pole group in addition, an end of this pole group articulates with this allocating bar, the other end of this pole group articulates with guide bracket, and organizes and the articulated section of allocating bar is a fulcrum when stirring this allocating bar with pole, this pole is organized this trace displacement of interlock.

The purpose of this utility model is to utilize between the loop bar of two carriage release levers and mobile jib assembly and respectively establishes an adjusting rod group as from the foregoing, before making, the front and back displacement stroke of back work feed tooth all can be carried out the adjustment of cloth feed amount, meaning promptly, the controlling organization of work feed tooth displacement stroke distance before making, be arranged with the controlling organization branch of back work feed tooth displacement stroke distance, allow the user can comply with oneself demand or hobby, easily the displacement stroke of preceding work feed tooth or back work feed tooth is produced the function of sewing thickness pin and differential ratio apart from change, to meet the sewing demand of high elasticity cloth and the costume design effect of various complexity now.

The beneficial effects of the utility model are to regulate the front and back shift length of forward and backward work feed tooth, all can carry out the purpose that cloth feed amount is adjusted and reach by the forward and backward side's of operation straight tube support allocating bar.

Description of drawings

Fig. 1 is the three-dimensional embodiment schematic diagram of the work feed tooth linkage of existing Sewing machines.

Fig. 2 is the part three-dimensional exploded view of the work feed tooth linkage of existing Sewing machines.

Fig. 3 is the plan structure reference diagram of the work feed tooth linkage of existing Sewing machines.

Fig. 4 is that the guide bracket of work feed tooth linkage of existing Sewing machines is in the side-looking action reference figure of fork to top offset.

Fig. 5 is that the guide bracket of work feed tooth linkage of existing Sewing machines is in the side-looking action reference figure of fork to bottom offset.

Fig. 6 is a three-dimensional embodiment schematic diagram of the present utility model.

Fig. 7 is a part three-dimensional exploded view of the present utility model.

Fig. 8, the 9th, when link assembly of the present utility model moved, this extension bar was the side-looking action reference figure of special angle swing.

Figure 10 is a plan structure reference diagram of the present utility model.

Figure 11 is that guide bracket of the present utility model is in the side-looking action reference figure of first fork to top offset.

Figure 12 is that guide bracket of the present utility model is in the side-looking action reference figure of first fork to bottom offset.

Figure 13 is that guide bracket of the present utility model is in the side-looking action reference figure of second fork to top offset.

Figure 14 is that guide bracket of the present utility model is in the side-looking action reference figure of second fork to bottom offset.

The component symbol explanation:

The straight tube of a1 support 10 main shafts 20 connection rod set 201 extension bars

30 mobile jib assemblies 301 fasten bar 302 loop bars 303 forks

40 adjusting rod groups, 401 traces, 4011 guide brackets 402 are transferred moving mechanism

4021 poles are organized 4022 allocating bars, 4023 adjusting knobs, 50 carriage release levers

Carriage release lever 5011 guide rods 502 back carriage release lever 5021 elongated slots before 501

The straight tube of work feed tooth 504 back work feed tooth a support 1 link assembly before 503

11 extension bars, 2 mobile jib assemblies 21 fasten bar 22 loop bars

221 first forks, 222 second forks, 3 adjusting rod groups, 31 traces

311 guide brackets, 312 loose joint pieces, 3121 holes 32 are transferred moving mechanism

321 poles are organized 22 allocating bars, 323 adjusting knobs, 4 carriage release levers

Carriage release lever 411 guide rods 42 back carriage release lever 421 elongated slots before 41

Work feed tooth 44 back work feed tooth 5 main shafts before 43

The specific embodiment

For making the utility model there is further understanding, especially exemplified by the following example it is described now.

See also shown in Fig. 6,7, the work feed tooth linkage of Sewing machines of the present utility model, it includes a link assembly 1, a mobile jib assembly 2, two adjusting rod groups 3 and two carriage release levers 4, wherein:

Link assembly 1, one end are attached to main shaft 5 (see figure 6)s of Sewing machines, and the other end is an extension bar 11 (see figure 7)s, and this main shaft 5 is when rotating, and this extension bar 11 is the swing of special angle (this extension bar is seen Fig. 8,9 in addition).

Mobile jib assembly 2, it has one and fastens bar 21, a loop bar 22, this fastens bar 21 levels and fastens in the straight tube support a of Sewing machines, and wear this loop bar 22, the below of this loop bar 22 is respectively equipped with one first fork 221 and one second fork 222 in both sides, and this extension bar 11 tightly is placed in the outside (for another Figure 10) of this loop bar 22, and when extension bar 11 swings, this first fork 221, second fork 222 are swung simultaneously.And for example shown in Figure 7, wherein this first fork 221 is fixedlyed connected with this loop bar 22, and second fork 222 utilizes the locking mode to be fixed in the below of this loop bar 22.

Two adjusting rod groups 3, respectively be provided with a trace 31 and and transfer moving mechanism 32 (as Fig. 7), respectively an end of this trace 31 sets firmly a guide bracket 311 respectively, respectively this guide bracket 311 is worn for first fork 221, second fork, 222 pivots respectively, the loose joint piece 312 that respectively is pivoted in the guide bracket 311 herein, and loose joint piece 312 respectively is provided by a hole 3121 that provides this first fork 221, second fork 222 to wear.And this accent moving mechanism 32 respectively comprises pole group 321 and one allocating bar 322, respectively an end of this pole group 321 articulates with this allocating bar 322 respectively respectively, its other end and each guide bracket 311 articulate, and with the articulated section (being the machine wall that is positioned straight tube support a) of pole group 321 and allocating bar 322 is fulcrum A when stirring this allocating bar 322, and this pole is organized these trace 31 displacements of 321 interlocks (as Figure 11,12 and 13,14).In addition, the other end of this allocating bar 322 is an adjusting knob 323, and the adjusting knob 323 of two allocating bars 322 lays respectively at the forward and backward side's of straight tube support a the outside (as Fig. 6), and when stirring this allocating bar 322 by adjusting knob 323, this trace 31, guide bracket 311 are displacement, and cause this guide bracket 311 respectively at this first fork 221, second fork, 222 upper and lower displacements (respectively as Figure 11,12 and 13,14).

Carriage release lever 4, comprise the preceding carriage release lever 41 and the back carriage release lever 42 (as Figure 10) that are abutted against mutually, work feed tooth 44 behind the work feed tooth 43 or before the front end of carriage release lever 41 and back carriage release lever 42 connects respectively and establishes one before being somebody's turn to do, carriage release lever 41 is established a guide rod 411 pivots and is worn this back carriage release lever 42 before being somebody's turn to do, and this back carriage release lever 42 is established an elongated slot 421 provides this guide rod 411 to wear, and the other end of this two trace 31 is articulated in this forward and backward

carriage release lever

41,42 respectively in addition.

(see figure 6) during enforcement, when treating main shaft 5 dynamic starts and make power reach mobile jib assembly 2 (as Fig. 8,9 via link assembly 1, be to be example among the figure) with first fork, this first fork 221, second fork 222 are swung simultaneously, and make power continue to drive to preceding carriage release lever 41 and back carriage release lever 42 by trace 31, and work feed tooth 43 and back work feed tooth 44 front and back displacement synchronously before making.And desire is when regulating cloth feed amount, if desire is regulated the cloth feed amount of back cloth tooth 44, then stir this allocating bar 322 by the adjusting knob 323 outside the straight tube of the operation support a rear, this moment this trace 31, guide bracket 311 is displacement, and cause this guide bracket 311 in these first fork, 221 upper and lower displacements, and when moving on the guide bracket 311 (as Figure 11), the front and back displacement stroke of back work feed tooth 44 is shortened, cloth feed amount diminishes, otherwise, when guide bracket 311 moves down (as Figure 12), make this moment the front and back displacement stroke of back work feed tooth 44 elongated, the work feed quantitative change is big, so can regulate the cloth feed amount of back work feed tooth 44, make adjusting knob 323 be tightened in straight tube support a after regulating again and get final product, be same as this operator scheme, before if desire is regulated during work feed tooth 43, can achieve the above object (as Figure 13 as long as stir this allocating bar 322 by the adjusting knob 323 in the outside, the straight tube of operation support a the place ahead, 14).

Be with, the utility model is respectively to establish an adjusting rod group 3 between the loop bar 22 with two carriage release levers 4 and mobile jib assembly 2 as can be known, work feed tooth 43, back work feed tooth 44 all can carry out the target that cloth feed amount is adjusted before then can reaching, and can improve aforementioned existing person's shortcoming, and can adapt to the costume design demand of high elasticity cloth now and various complexity.

In sum, though the utility model discloses above content with preferred embodiment, but be not in order to limit the scope that the utility model is implemented, any those skilled in the art, in not breaking away from spirit and scope of the present utility model, when doing a little change and retouching, promptly all equalizations of doing according to the utility model change and modify, and should be the utility model claim and contain.

Claims

1, a kind of work feed tooth linkage of Sewing machines, this interlock unit includes:

A link assembly, this link assembly one end is attached to the main shaft of Sewing machines, and the other end is an extension bar, and this main shaft is when rotating, and this extension bar is the swing of special angle;

A mobile jib assembly has one and fastens bar, a loop bar, and this fastens the bar level and fastens in the straight tube support of Sewing machines, and wears this loop bar, and this extension bar tightly is placed in this loop bar outside, and one first fork is extended in a side in the below of this loop bar again;

An adjusting rod group, be provided with a trace and an accent moving mechanism, one end of this trace sets firmly a guide bracket, this guide bracket is worn by this first fork pivot, and this accent moving mechanism mainly comprises an allocating bar, and an end of this allocating bar is pivoted to this guide bracket, and the other end is an adjusting knob that is positioned at the outside, straight tube support rear, and when stirring this allocating bar, this trace, guide bracket displacement, and cause this guide bracket in this first fork upper and lower displacement;

Two carriage release levers, be carriage release lever behind preceding carriage release lever being abutted against mutually and, work feed tooth or back work feed tooth before respectively this carriage release lever front end connects respectively and establishes, and should wear this back carriage release lever with a guide rod pivot by preceding carriage release lever, and this back carriage release lever is established an elongated slot provides this guide rod to wear, in addition, the other end of this back carriage release lever and this trace articulates;

It is characterized in that: the below of this loop bar also is provided with one second fork in opposite side, and be provided with an adjusting rod group in addition, this adjusting rod group also is provided with trace and transfers moving mechanism, one end of this trace also sets firmly a guide bracket, this guide bracket is to be worn by this second fork pivot, and this accent moving mechanism also mainly comprises an allocating bar, one end of this allocating bar is pivoted to this guide bracket, and the other end is an adjusting knob that is positioned at the outside, straight tube support the place ahead, and when stirring this allocating bar, this trace, guide bracket displacement, and cause this guide bracket in this second fork upper and lower displacement.

2, the work feed tooth linkage of Sewing machines as claimed in claim 1, it is characterized in that, the loose joint piece that respectively is pivoted in the guide bracket of this two adjusting rods group, and those loose joint pieces respectively establish a hole, and this first fork, this second fork are arranged in described hole respectively.

3, the work feed tooth linkage of Sewing machines as claimed in claim 2, it is characterized in that, this accent moving mechanism comprises a pole group in addition, one end and this allocating bar of this pole group articulate, the other end and guide bracket articulate, and with the articulated section of pole group and allocating bar is fulcrum when stirring this allocating bar, this this trace displacement of pole group interlock.