CN201268773Y

CN201268773Y - Upper decorative thread poking apparatus of sewing machine

Info

Publication number: CN201268773Y
Application number: CNU2008201326018U
Authority: CN
Inventors: 林培嘉
Original assignee: Ningbo Arrow Gaolin Electromechanical Co Ltd; GAOLIN CO Ltd
Current assignee: Ningbo Arrow Gaolin Electromechanical Co Ltd; GAOLIN CO Ltd; Kaulin Manufacturing Co Ltd
Priority date: 2008-07-30
Filing date: 2008-07-30
Publication date: 2009-07-08
Anticipated expiration: 2018-07-30

Abstract

The utility model relates to a top ornamental thread drawing device of a sewing machine, which comprises a bearing seat, a driving mechanism, an interlocking mechanism and a thread drawing and clamping mechanism, wherein the bearing seat comprises a front plate and a rear plate, and a guide slot is arranged on the front plate; the driving mechanism comprises a driver fixed on the rear plate, a rotating shaft convexly extending out of the driver, and volute shrapnels annularly arranged on the outer circumferential edge of the rotating shaft and used for driving the rotating shaft to reset; the interlocking mechanism comprises a first swing arm driven by the driver, a second swing arm with one end pivoted on the outer end face of the front plate, and a rocker arm pivoted on the first swing arm and the second swing arm through a pivots, the rocker arm is positioned between the second swing arm and the front plate, one end of the rocker arm is provided with a projection embedded inside the guide slot; and the thread drawing and clamping mechanism is fixed on one end of the rocker arm away from the projection. Therefore, the utility model achieves effects of accurate positioning and stable action.

Description

The last ornamental thread thread-moving device of Sewing machines

Technical field

The utility model refers to a kind of last ornamental thread thread-moving device that is used for Sewing machines especially relevant for a kind of thread-moving device.

Background technology

The last ornamental thread thread-moving device of known Sewing machines, such as the TaiWan, China utility model patent announce No. 443342 announcement, it mainly comprises load bearing seat, driving mechanism, interlinked mechanism and collude clamp mechanism, load bearing seat comprises board and is articulated in the column spinner of board, driving mechanism comprises the driver that is fixed in board, the rotating shaft that protrudes out from the driver center, and the volute shell fragment that is located on the rotating shaft outer peripheral edges and resets in order to the driving rotating shaft, interlinked mechanism comprises the swing arm that is connected in rotating shaft and driven by driver, be articulated in the pivot of an end of this swing arm, and the rocking arm of difference cross-under column spinner and pivot, collude the end that rocking arm is fixed in clamp mechanism.

Yet, the last ornamental thread thread-moving device of known Sewing machines, realize colluding the function that folder is gone up ornamental thread though have, but on using, reality still has following problem points, because its rotating shaft is connected on the driver by the volute shell fragment, and make rotating shaft axially be free state, in swing arm in the process that backspin moves, make the rotating shaft generation axially displaced with related, collude the difficult suture needle rear that moves to accurately of clamp mechanism and make, not only can't collude to get to press from both sides and pull, also will cause the situation of colluding the bump suture needle of clamp mechanism last ornamental thread.In addition, it only makes interlinked mechanism produce the involution action by the elastic acting force of volute shell fragment, and in use for some time, often the elastic fatigue because of the volute shell fragment causes scrapping of whole group thread-moving device.And its board only can be done the adjustment of upper and lower position and move, and does not have interchangeability for the mismachining tolerance of body or the micro-difference between the different manufacturers.

The utility model content

In view of this, a purpose of the present utility model is to provide the last ornamental thread thread-moving device of the stable Sewing machines of a kind of accurate positioning, action.

In order to achieve the above object, the utility model provides a kind of last ornamental thread thread-moving device of Sewing machines, comprise load bearing seat, driving mechanism, interlinked mechanism and collude clamp mechanism that this load bearing seat comprises header board and is formed at the back plate at this header board rear, offers guide groove on this header board; The rotating shaft that this driving mechanism comprises the driver that is fixed in this back plate, protrude out from this driver and be located on these rotating shaft outer peripheral edges and in order to drive the volute shell fragment that this rotating shaft resets; This interlinked mechanism comprise be connected in this rotating shaft and be subjected to first swing arm that this driver drives, second swing arm that an end is articulated in this header board outer face, and by the rocking arm of pivot with this first swing arm and this second swing arm pivot joint, this rocking arm is between second swing arm and this header board, and an end of this rocking arm has the projection that embeds this guide groove; This colludes clamp mechanism and is fixed on the end of this rocking arm away from this projection.

The last ornamental thread thread-moving device of Sewing machines of the present utility model by rocking arm being located between the header board and second swing arm, is overcome moving axially of rotating shaft effectively, and the mobile route and the position of colluding clamp mechanism is remained unchanged.

The last ornamental thread thread-moving device of Sewing machines of the present utility model, it is connected in the header board and first swing arm by elastic parts, not only can increase to collude clamp mechanism and collude and get the ornamental thread active force, and can slow down the elastic fatigue of volute shell fragment effectively.

The last ornamental thread thread-moving device of Sewing machines of the present utility model also can only drive interlinked mechanism by elastic parts and colludes clamp mechanism and write in reply and return when the volute shell fragment damages, and reduces use cost significantly.

Description of drawings

Fig. 1 is the utility model thread-moving device three-dimensional exploded view;

Fig. 2 is the utility model thread-moving device combination schematic diagram;

Fig. 3 is applied to the combination stereogram of Sewing machines for the utility model thread-moving device;

Fig. 4 colludes last ornamental thread for the preparation of the utility model thread-moving device and gets the combination front view;

Fig. 5 colludes a kind of user mode figure that gets for the clamp mechanism of colluding of the present utility model to last ornamental thread;

Fig. 6 colludes the another kind of user mode figure that gets for the clamp mechanism of colluding of the present utility model to last ornamental thread;

Fig. 7 has finished ornamental thread for the utility model thread-moving device and has colluded and get the action schematic diagram.

Description of reference numerals

Load bearing seat 10

Header board 11 guide grooves 111

112 screws 113 of boring a hole

Back plate 12 through holes 121

Driving mechanism 20

Driver 21 rotating shafts 22

Volute shell fragment 23

Interlinked mechanism 30

First swing arm, 31 slotted eyes 311

Second swing arm, 32 rocking arms 33

Pivot 331 projections 332

Elastic parts 34

Collude clamp mechanism 40

Collude sheet 41 hook parts 411

Elastic pressuring plate 42

Fixing base 50

L shaped plate 51 elongated slots 511

Gusset 52

Shock-absorbing mechanism 60

Catch 61 earthquake absorption blocks 62

Sewing machines 8

Body 81 suture needles 82

Last ornamental thread 9

The specific embodiment

Relevant detailed description of the present utility model and technology contents, conjunction with figs. is described as follows, however appended accompanying drawing only provides reference and explanation usefulness, is not to be used for the utility model is limited.

See also Fig. 1 and Fig. 2, be respectively the utility model tension device three-dimensional exploded view and combination schematic diagram, the utility model provides a kind of last ornamental thread thread-moving device of Sewing machines, and it mainly comprises load bearing seat 10, driving mechanism 20, interlinked mechanism 30 and colludes clamp mechanism 40.

Load bearing seat 10 comprises header board 11 and back plate 12, and this header board 11 roughly is meniscus shaped, offers arc guide barrel 111, perforation 112 and screw 113 thereon; This back plate 12 extends and is parallel to each other with header board 11 from the bending of a side direction rear of header board 11, and offers the through hole 121 of corresponding aforementioned perforation 112 on the plate 12 of back.

Driving mechanism 20 comprises driver 21, the rotating shaft 22 that outwards protrudes out from driver 21 centers, reaches to encircle and establish around the volute shell fragment 23 of rotating shaft 22 outer peripheral edges, this volute shell fragment 23 is in order to drive rotating shaft 22 involution original positions, this driver 21 is fixed on the plate 12 of back, volute shell fragment 23 is located in the through hole 121, and rotating shaft 22 then passes through hole 121 outsides.

Interlinked mechanism 30 comprises first swing arm 31, second swing arm 32, rocking arm 33 and elastic parts 34, and an end of this first swing arm 31 is socketed on rotating shaft 22 and driven by driver 21, and the other end then offers capsule shape slotted eye 311; One end of this second swing arm 32 amplexiforms in the outer face of header board 11, and the perforation 112 that wears second swing arm 32 and header board by bolt in regular turn is solid with the nut spiral shell again, and then realizes the pivot joint swing of second swing arm 32 and header board 11; And rocking arm 33 is connected with pivot 331, and its slotted eye 311 and second swing arm 32 by this pivot 331 and first swing arm 31 articulates mutually, this rocking arm 33 is between second swing arm 32 and header board 11, and its upper and lower end face attaches with header board 11 end faces with second swing arm 32 respectively and contacts, and an end of rocking arm 33 has the projection 332 that embeds aforementioned guide groove 111 again; The elastic parts 34 of present embodiment is an extension spring, its two ends are connected on first swing arm 31 and the header board 11 by screw rod respectively, so as to increasing by first swing arm 31, second swing arm 32 and rocking arm 33 involution speed, reaching also can normal operation when volute shell fragment 23 produces elastic fatigue through long-time the use.

Collude clamp mechanism 40 and comprise and collude sheet 41 and be fixed in the elastic pressuring plate 42 that colludes sheet 41, this front end that colludes sheet 41 is formed with hook part 411, and elastic pressuring plate 42 presses in this top, hook part; Colluding sheet 41 rear ends in addition then is fixed on the end of rocking arm 33 away from projection 332 by retaining elements such as screws.

Further, the utility model also comprises fixing base 50, this fixing base 50 is bolted in the screw 113 of header board 11 by retaining elements such as screws, and it is combined by L shaped plate 51 and gusset 52, on L shaped plate 51, offer horizontal elongated slot 511, so as to the adjustment of this thread-moving device lateral displacement is provided, then realize being connected between L shaped plate 51 and the gusset 52 by retaining elements such as screws.

Further, the utility model also comprises shock-absorbing mechanism 60, this shock-absorbing mechanism 60 is made up of catch 61 and the earthquake absorption block 62 that is socketed on catch 61, this catch 61 is fixed on the header board 11 by screw, earthquake absorption block 62 then is located in the aforementioned guide groove 111 and the corresponding shift motion end that is formed at rocking arm 33, in order to absorb the impact of rocking arm 33 recovery stroke.

See also Fig. 3 to shown in Figure 7, be respectively the utility model thread-moving device and be applied to combination schematic diagram and each user mode figure of Sewing machines, by being connected of above-mentioned each assembly, can pass the elongated slot 511 of L shaped plate 51 by bolt, and this thread-moving device is fixed on the body 81 of Sewing machines 8, and correspondence is formed at a side edge of suture needle 82 (as Fig. 4), when Sewing machines 8 sewings fall behind to particular segment, can be by the driving of driver 21, and rotating shaft 22 drive first swing arms 31 and second swing arm 32 are done to lower swing, on rocking arm 33, following both ends of the surface are amplexiformed mutually with header board 11 and second swing arm, 32 internal faces respectively, and rocking arm 33 is driven steadily and accurately collude the sheet 41 that colludes of clamp mechanism 40 to move into places, rears, suture needle 82 bottom (as Fig. 4), this moment is by the elastic acting force of volute shell fragment 23 and elastic parts 34, and make first swing arm 31, second swing arm 32 and rocking arm 33 drives are colluded sheet 41 and are progressively moved right, the last ornamental thread 9 that 411 pairs of the hook parts of colluding sheet 41 with order are arranged in each suture needle 82 colludes from left to right to be got, and ornamental thread 9 on each is slipped in the breach of hook part 411 and by 42 firm folders of elastic pressuring plate pull; Subsequently, when first swing arm 31, second swing arm 32 and rocking arm 33 continue to move up, promptly can carry out the cut-out operation of ornamental thread 9 on each in the former cutting knife (not shown) that is provided with on the Sewing machines 8, collude clamp mechanism 40 afterwards when continuing upwards involution along with interlinked mechanism 30, elastic pressuring plate 42 has pressed ornamental thread 9 on each.

The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.

Claims

1, a kind of last ornamental thread thread-moving device of Sewing machines is characterized in that, comprising:

Load bearing seat comprises header board and is formed at the back plate at this header board rear, offers guide groove on this header board;

Driving mechanism, the rotating shaft that comprise the driver that is fixed in this back plate, protrudes out from this driver and be located on these rotating shaft outer peripheral edges and in order to drive the volute shell fragment that this rotating shaft resets;

Interlinked mechanism, comprise be connected in this rotating shaft and be subjected to first swing arm that this driver drives, second swing arm that an end is articulated in this header board, and by the rocking arm of pivot with this first swing arm and this second swing arm pivot joint, this rocking arm is between second swing arm and this header board, and an end of this rocking arm has the projection that embeds this guide groove; And

Collude clamp mechanism, be fixed on the end of this rocking arm away from this projection.

2, the last ornamental thread thread-moving device of Sewing machines as claimed in claim 1 is characterized in that described guide groove is curved.

3, the last ornamental thread thread-moving device of Sewing machines as claimed in claim 1 is characterized in that, described first swing arm offers slotted eye away from an end of described rotating shaft, and this slotted eye wears and articulates described pivot.

4, the last ornamental thread thread-moving device of Sewing machines as claimed in claim 1, it is characterized in that, described interlinked mechanism also comprises elastic parts, and this elastic parts is an extension spring, and the two ends of this extension spring are connected on described first swing arm and the described header board by screw rod respectively.

5, the last ornamental thread thread-moving device of Sewing machines as claimed in claim 1 is characterized in that, the upper and lower end face of described rocking arm attaches with described second swing arm and described header board end face respectively and contacts.

6, the last ornamental thread thread-moving device of Sewing machines as claimed in claim 1 is characterized in that, the described clamp mechanism of colluding comprises and is fixed in colluding sheet and being fixed in the elastic pressuring plate that this colludes sheet of described rocking arm.

7, the last ornamental thread thread-moving device of Sewing machines as claimed in claim 6 is characterized in that, the described front end that colludes sheet is formed with the hook part, and described elastic pressuring plate presses in this top, hook part.

8, the last ornamental thread thread-moving device of Sewing machines as claimed in claim 1, it is characterized in that, the last ornamental thread thread-moving device of described Sewing machines also comprises fixing base, and this fixing base comprises L shaped plate and is connected in the gusset of this L shaped plate, offers horizontal elongated slot on this L shaped plate.

9, the last ornamental thread thread-moving device of Sewing machines as claimed in claim 1, it is characterized in that, the last ornamental thread thread-moving device of described Sewing machines also comprises shock-absorbing mechanism, and this shock-absorbing mechanism comprises the catch that is fixed in described header board and is socketed on this catch and is formed at the earthquake absorption block of described guide groove inside.