CN2923775Y

CN2923775Y - Wear-resisting oil-free rotary shuttle of flat seamer

Info

Publication number: CN2923775Y
Application number: CN 200620105957
Authority: CN
Inventors: 潘学强
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-21
Filing date: 2006-07-21
Publication date: 2007-07-18
Anticipated expiration: 2016-07-21

Abstract

The utility model relates to a sewing machine, especially a wear-resistant oil-free rotating spindle of the sewing machine which consists of an outer spindle and an inner spindle. A opening thread outlet position (3) of a convex ring (5) of the inner spindle is provided with a small wear-resistant ceramic cylinder. The convex ring (5) of the inner spindle is made of polymeric alloy layers and is inlayed in the ring groove of the inner spindle. The ring groove is provided with a plurality of vias on the bottom. Polymeric alloy materials are one-time plastic injection mould in the ring groove to make the convex ring form a strengthening nail (5.1) which cooperates with the vias. Since the opening thread outlet position (3) of the convex ring (5) of the inner spindle is provided with a ceramic cylinder and it's not easy for the ceramic cylinder to produce wear scars when the upper thread is coming out. Thus, the durability is obviously prolonged. Otherwise, the convex ring of the inner spindle is made of Polymeric alloy materials of high hardness and high strength, needs.

Description

A kind of wear-resisting no oily rotating shuttle of flat seam machine

Technical field

The utility model relates to Sewing machines, especially a kind of improvement of rotating shuttle of high speed parallel sewing machine.

Background technology

The rotating shuttle of existing high speed parallel sewing machine, be formed by combining by outer shuttle, interior shuttle, spring leaf, pressing plate, its China and foreign countries' shuttle is made high speed rotary motion under lower shaft drives, when main shaft rotates at a high speed, rotating shuttle just must turn round having under the lubricating oil state, reducing abrasion, and take away heat to reduce thermal expansion, prevent that rotating shuttle from killing by lubricating oil.One end of oil circuit is outer race rail, and the other end is outer shuttle hole, and the hole is communicated with lower shaft, and lubricating oil enters outer shuttle oilhole and directly enters outer race rail by lower shaft.And reaching the standard grade of Sewing machines will pull out and form a wire loop bottom line of Nei Suonei is extracted from going out line position in one circle back around the bottom by rotating shuttle inlet wire position, made to reach the standard grade and roll off the production line to form by interior shuttle tongue point to interweave, and finishes the sewing of needle tracking.In this process, it is loose to reach the standard grade during inlet wire, less with the frictional force of interior shuttle bulge loop opening part, and when going out line process, reach the standard grade and stretch tight very tightly, bigger with the frictional force of interior shuttle bulge loop opening outlet position, the meeting that runs up for a long time produces polishing scratch and causes card line phenomenon, must change rotating shuttle, rotating shuttle is short service life.In addition, pull out the process from going out line position in one circle back, last wire-wound bottom, sewing thread very easily is subjected to the pollution of oil, can reduce the quality of ready-made clothes.

Summary of the invention:

The purpose of this utility model provide a kind of in the wear-resisting no oily rotating shuttle of the shuttle flat seam machine that is difficult for being worn.

The wear-resisting no oily rotating shuttle of a kind of flat seam machine of the utility model is made of outer shuttle and Nei Suo, it is characterized in that being positioned at shuttle bulge loop opening part and goes out line position one little wear-resisting cylinder is set.

Above-mentioned little wear-resisting cylinder is made by ceramic material.

Interior shuttle bulge loop is made of the high polymer alloy layer.

In the annular groove of shuttle, the annular groove bottom land had several through holes in interior shuttle bulge loop was embedded in, and high molecule alloy material is an injection molded at the annular groove place, made bulge loop form the reinforcing nail that cooperates with through hole at bottom land.

The utility model is because go out line position one ceramic small cylinder is set being positioned at shuttle bulge loop opening part, and ceramic quality is hard, wear-resistant, reach the standard grade when outlet and the ceramic cylinder coefficient of friction of interior shuttle bulge loop opening outlet position little, be difficult for making ceramic cylinder to produce polishing scratch, rotating shuttle can obviously prolong service life.In addition, interior shuttle bulge loop is made by high rigidity and high-intensity high molecule alloy material, can save multiple tracks machining operation, need not lubricating oil, can not pollute suture, helps the quality assurance of sewings.

The utility model is described in further detail below in conjunction with accompanying drawing.

Description of drawings:

Fig. 1 is the front view of shuttle in the utility model.

Fig. 2 is the right view of Fig. 1.

Fig. 3 is the K-K sectional view of Fig. 2.

Fig. 4 is the left view of Fig. 1.

The specific embodiment:

As shown in the figure, the utility model flat seam machine does not have oily rotating shuttle, is made of outer shuttle and Nei Suo 1, and the groove ring of outer shuttle slides concavo-convex the cooperation with the bulge loop of interior shuttle 5, and bulge loop 5 has breach, and the breach two ends are respectively inlet wire position 4 and go out line position 3.The bulge loop 5 of interior shuttle is embedded in the annular groove of interior shuttle 1 by injection molded of high molecule alloy material, the annular groove bottom land has 5-8 through hole, in the injection molded process, make bulge loop 5 form the reinforcing nail 5.1 that cooperates with through hole, make bulge loop and interior shuttle main body strong bonded at bottom land.Described high polymer alloy layer is a well known materials, and the adding lubricant makes it have self-lubricating function.Go out line position 3 places and set firmly a radially ceramic small cylinder 2 being positioned at shuttle bulge loop opening part, make when reaching the standard grade outlet only to contact with ceramic small cylinder 2.

Claims

1, a kind of wear-resisting no oily rotating shuttle of flat seam machine is made of outer shuttle and Nei Suo (1), and the opening that it is characterized in that being positioned at shuttle bulge loop (5) goes out line position (3) and locates to be provided with a little wear-resisting cylinder (2).

2,, it is characterized in that little wear-resisting cylinder (2) made by ceramic material according to the wear-resisting no oily rotating shuttle of the described flat seam machine of claim 1.

3, according to the wear-resisting no oily rotating shuttle of the described flat seam machine of claim 1, shuttle bulge loop (5) is made by the high polymer alloy layer in it is characterized in that.

4, according to the wear-resisting no oily rotating shuttle of the described flat seam machine of claim 3, shuttle bulge loop (5) is embedded in the annular groove of interior shuttle (1) in it is characterized in that, the annular groove bottom land has several through holes, high molecule alloy material is an injection molded at the annular groove place, makes bulge loop form the reinforcing nail (5.1) that cooperates with through hole at bottom land.