CN2259419Y

CN2259419Y - Thread take-off device for sewing machine

Info

Publication number: CN2259419Y
Application number: CN 96207346
Authority: CN
Inventors: 顾飞龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-02
Filing date: 1996-04-02
Publication date: 1997-08-13
Anticipated expiration: 2006-04-02

Abstract

The utility model relates to a thread hooking device for a sewing machine, comprising an electromagnetic element, a main swing arm, an auxiliary arm and a thread hooking part. The action end of the electromagnetic element is provided with a moving rod, and one side wall of the electromagnetic element is provided with side plates in groups in a parallel mode; the side plates are provided with an arc-shaped curve groove which extends downward, and the starting end of the main swing arm can be sheathed inside the arc-shaped curve groove. The outer side of the side plates is provided with a curved strip groove which extends laterally, and the starting end of the auxiliary arm is penetrated inside the curved strip groove and connected with the tail end of the moving rod; the zigzag segment of the auxiliary arm is fixedly locked inside through holes arranged on the side plates, and the other end of the auxiliary arm is connected with the zigzag part of the middle of the main swing arm; the tail end of the main swing arm is connected with the thread hooking part. When used for large quantities of sewing operation, the utility model can ensure cloth surface without residual thread ends.

Description

Sewing machines collude line apparatus

The utility model relates to a kind of servicing unit of Sewing machines, and a kind of Sewing machines colludes line apparatus specifically.

Making a general survey of general ready-made clothes source mill, is the cloth folded version also to be cut in a large number to finish earlier, and the cloth sewing after Sewing machines will cut in a large number becomes required appearance again, and the cloth of again each a large amount of sewing being finished at last sewing one by one connects into a processing clothing.And for the Sewing machines that generally aims at a large amount of sewing cloth covers, fold in that the single cloth of its sewing is intact, when remaking the sewing of another cloth, because after its line for the traction of car pin is cut off by cable cutter, for guaranteeing unlikely the dropping out of line in the car pin pin hole, sewing locomotive pin is longer by the line source that the car pin is drawn when another cloth of sewing.But therefore make its sewing in addition must residual one during a piece of cloth quite long the end of a thread, so the processor then must cut the residual wires first that residues on each cloth again, cause processor's another kind of inconvenience after a large amount of sewing cloths are finished.

The purpose of this utility model is to provide a kind of line apparatus that colludes of Sewing machines, makes this Sewing machines add man-hour being used for sewing in enormous quantities, is can make not have residual the end of a thread on the cloth cover of making after finishing, and saves processor's trimming head handling procedure.

The purpose of this utility model is achieved in that a kind of line apparatus that colludes of Sewing machines, comprise that an electromagnetic component, master pendulum arm, secondary swing arm and collude line portion, the effect end group of described electromagnetic component is established a moving lever, and establishes side plate in a parallel sidewalls group of electromagnetic component; On side plate, offer an arc curve ditch that extends downwards, the opening top and can be sleeved in this arc curve ditch of master pendulum arm; Side plate is offered the curved line ditch of a horizontal expansion in the outer part, and the top that opens of secondary swing arm is set in this curved line ditch, and is connected in the moving lever end, and the zigzag section of secondary swing arm is locked in the through hole of offering on the side plate; The other end of secondary swing arm is connected with the middle zigzag part of master pendulum arm; The end of master pendulum arm connects one and colludes line portion.

In the utility model, the linkage that is made of master pendulum arm and secondary swing arm is under the drive of electromagnetic component, making master pendulum arm connect the terminal line portion of colluding can be at the intact piece of cloth of Sewing machines sewing then, after desire seam colludes back cut-out with the end of a thread during a piece of cloth down, the short-term head-clamp that only stays is lived, and this short-term head can covered by sewing during a piece of cloth under the sewing, and making does not have residual the end of a thread on the cloth cover, save processor's trimming head handling procedure, thereby reach the purpose of this utility model.

The explanation of accompanying drawing drawing:

Fig. 1 three-dimensional exploded view of the present utility model;

Fig. 2 action schematic diagram one of the present utility model;

Fig. 3 action schematic diagram two of the present utility model;

Fig. 4 action schematic diagram three of the present utility model;

Fig. 5 action schematic diagram four of the present utility model;

Fig. 6 action schematic diagram five of the present utility model;

Fig. 7 the utility model is assemblied in the overall diagram on the Sewing machines.

Describe the utility model in detail below in conjunction with embodiment and accompanying drawing thereof;

See also Fig. 1, shown in Figure 2, the utility model comprises an electromagnetic component 1, establishes a moving lever 11 in the effect end group of this electromagnetic component 1, and establishes side plate 2 in a parallel sidewalls group of electromagnetic component 1; On side plate 2, offer an arc curve ditch 21 that extends downwards in the inner part, the opening top 32 and can be sleeved in this arc curve ditch 21 of master pendulum arm 3 by prominent pin 33, and can slide along this arc curve ditch.Side plate 2 is offered the curved line ditch 22 of a horizontal expansion in the outer part, secondary opening of swing arm 4 is connected in moving lever 11 ends after top 41 mat nuts 44 are set in this curved line ditch 22, the zigzag section 42 of secondary swing arm 4 is locked in the through hole of offering on the side plate 2 23, as the oscillation center of secondary swing arm 4 by a bolting element 43; The other end of secondary swing arm 4 is connected with the middle zigzag part 34 of master pendulum arm 3; The end of master pendulum arm 3 connects one and colludes line portion 31, colludes to press in the line portion 31 and establishes a front end reed 311.

Operation principle of the present utility model can be referring to Fig. 2 to shown in Figure 6.When the one cloth sewing is intact when desiring another cloth of sewing fold before, electromagnetic component 1 conducting, and the moving lever 11 that drives its front end is toward rollbacks, and this moving lever 11 drives the secondary swing arm 44 that is connected with its front end and opens beginning section 41 extension curve bar ditches 22 toward opposite side displacements, as shown in Figure 3; Prolong another arc knee ditch 21 to moving down in secondary swing arm 4 this moment by driving master pendulum arm 3, make the line portion of colluding 31 of master pendulum arm 3 ends past overhanging, as Fig. 4, shown in Figure 5 with being connected of middle the zigzag part 34 of master pendulum arm 3; After the line 6 that Sewing needles 5 is pind down catches on, electromagnetic component 1 controlled outage, the moving lever that is connected in its front end extends original position 11 times, and secondary swing arm 4 drives master pendulum arms 3 rollbacks, and line 6 inward directions are colluded back in the line portion of colluding of master pendulum arm 3 ends; The line 6 that car pin 5 is pind down then colludes in the other end of the line that car pin 5 is drawn in the crack of the front end reed 311 that colluding line portion 31 of pulling, as shown in Figure 6 after cutting off by cable cutter; When car pin 5 when doing the making of another cloth cover 7, its car pin 5 front ends and collude giving of 31 clippings of line portion and establish short-term head 6 promptly can be car pin 5 when sewing backward, should be residual the end of a thread 6 cover with sewing.Making on the cloth cover 7 of a large amount of processing does not have residual the end of a thread after sewing is finished, can improve the production efficiency of processing clothing in enormous quantities with having.

Claims

1, a kind of Sewing machines collude line apparatus, it is characterized in that comprising that an electromagnetic component, master pendulum arm, secondary swing arm and collude line portion, the effect end group of described electromagnetic component is established a moving lever, and establishes side plate in a parallel sidewalls group of electromagnetic component; On side plate, offer an arc curve ditch that extends downwards, the opening top and can be sleeved in this arc curve ditch of master pendulum arm, side plate is offered the curved line ditch of a horizontal expansion in the outer part, the top that opens of secondary swing arm is set in this curved line ditch, and being connected in the moving lever end, the zigzag section of secondary swing arm is locked in the through hole of offering on the side plate; The other end of secondary swing arm is connected with the middle zigzag part of master pendulum arm; The end of master pendulum arm connects one and colludes line portion.

2, according to the line apparatus that colludes of the Sewing machines of claim 1, it is characterized in that described collude to press in the line portion establish the front end reed.

3,, it is characterized in that opening top and can being sleeved in this arc curve ditch of described master pendulum arm by prominent pin according to the line apparatus that colludes of the Sewing machines of claim 1.

4, according to the line apparatus that colludes of the Sewing machines of claim 1, it is characterized in that the top mat nut that opens of described secondary swing arm is set in this curved line ditch and is connected in the moving lever end.