CN2401574Y

CN2401574Y - Wire feeding regulator for domestic sewing machine

Info

Publication number: CN2401574Y
Application number: CN 99228877
Authority: CN
Inventors: 滕兆岭
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-10
Filing date: 1999-07-10
Publication date: 2000-10-18
Anticipated expiration: 2009-07-10

Abstract

The utility model relates to a wire feeding regulator for a domestic sewing machine. A screw of a back end cover of a machine head is provided with a wire conveying frame and a table plate hinge is clamped with a movable clamping base. A rod of the clamping base is provided with a conical spring and a cylinder wire is inserted into the rod of the clamping base. The wire is led into a wire conveying hook on a support bracket to be led into a wire passing opening of the machine head. The utility model can obtain uniform wire traces and proper tightness in the sewing operation. The utility model solves the defect that a wire feeding nail on the machine head of the domestic sewing machine can not tightly sheathe a cylinder wire with large caliber and is the ideal improved structure of a wire conveying device of the domestic sewing machine.

Description

Domestic sewing machine is failed the line adjuster

The utility model belongs to commodity, is specifically related to the structure of the defeated line adjuster of a kind of domestic sewing machine.

Domestic sewing machine is because its very strong practicality, very high owning amount is arranged in town-dweller-rural-family at present, but the line feeding device on this sewing machine head is kept intact always, do not improve, arm spool pin only is applicable to the reel line, do not match very much with spool, the bobbin of mass selling on the present market, the spool axle center has become the gross porosity footpath by original fine pore, and plug pin does not become always, often occur sewing thread around to plug pin or knot pipe rotate uneven, defeated line resistance instability, pine when tight when making the upper thread that stitches out or bottom line, stitching is very ugly, has had a strong impact on the quality of making.

The purpose of this utility model is: design the defeated line adjuster of a kind of domestic sewing machine, and by changing the structure of original line feeding device, tight defective during pine during stitching when overcoming sewing.

The purpose of this utility model is achieved in that installs a defeated line bracket on sewing machine head back shroud screw, support top connect one can 90 ° of rotations thread hook, at the hinge place that sewing machine head is connected with platen, the movable fixing card that inserts is equipped with a volute spring card on card.

To fix card and insert hinge, again cheese or cotton sewing thread on cone be inserted the volute spring card, from the line tube, the end of a thread be passed the thread hook of failing on the line bracket, and then line be introduced the line mouth of crossing of chain-drive section and walked around the take-up device, pass the Sewing machines pin hole, can carry out sewing operation.

This device can adapt to the insertion of various line barrel dliameters, and defeated line dynamics is even, degree of tightness is appropriate, needle tracking tension force is moderate, and suture degree of tightness unanimity has solved the defective that existing line feeding device exists.

Fig. 1 is the utility model structural representation

Fig. 2 is defeated wireform figure

Fig. 3 is defeated line holder structure figure

Among the figure: 1 sewing machine head, 2 sewing machine tables, 3 defeated coil holders, 4 back shroud screws, 5 defeated line structures, 6 clamping nuts, 7 heads and platen hinge, 8 movable decks, 9 volute springs, 10 line tubes

Further introduce the utility model embodiment below in conjunction with accompanying drawing

Defeated coil holder 3 is installed on the screw 4 of the back shroud of head 1, defeated coil holder 3 tops have one can 90 ° of rotations thread hook 5, clamping nut 6 compresses thread hook 5, two vertical inserted sheets of movable deck 8 cooperate movable snapping in hinge 7, on the vertical bar of deck 8 volute spring 9 is arranged, the line tube is inserted on the spring 9.

When needs are packed up head and are put into the machine bucket, only need screw 4 unscrewed and set level defeated coil holder 3, take off movable deck 8, can put it into easily in the machine bucket.

Claims

1, the defeated line adjuster of a kind of domestic sewing machine is made up of defeated coil holder, movable deck, it is characterized in that: defeated coil holder (3) is installed on the head back shroud screw (4), and movable deck (8) two vertical inserted sheets snap in the hinge (7).

2, the defeated line adjuster of a kind of domestic sewing machine according to claim 1 is characterized in that: defeated coil holder (3) top have can 90 ° of rotations thread hook (5), clamping nut (6) is positioned at the top of thread hook (5).

3, the defeated line adjuster of a kind of domestic sewing machine according to claim 1 is characterized in that: a vertical bar is arranged on the movable deck (8), volute spring (9) is arranged on the bar.