CN2279369Y

CN2279369Y - Clockwise rotating shuttle and bobbin case of sewing machine

Info

Publication number: CN2279369Y
Application number: CN 96230287
Authority: CN
Inventors: 侯英国; 楼豪生; 金钱明; 胡汉华
Original assignee: IND SEWING MACHINE FACTORY SHA
Current assignee: IND SEWING MACHINE FACTORY SHA
Priority date: 1996-07-17
Filing date: 1996-07-17
Publication date: 1998-04-22
Anticipated expiration: 2006-07-17

Abstract

A clockwise rotating shuttle and a bobbin case for a leather shoes machine with a backhand are characterized in that the structure of the rotating shuttle is axisymmetric with the structure of the original rotating shuttle rotating counterclockwise, so that the wire outlet direction of a new rotating shuttle is exactly consistent with the feeding direction, and the problems of strand scattering and wire breakage of acrylic fibers when the rotating shuttle is used for the leather shoes machine with the backhand are solved.

Description

The Sewing machines dextrorotation is to rotating shuttle and bobbin case

The utility model relates to a kind of Sewing machines dextrorotation to rotating shuttle and bobbin case, refers to be used for the rotating shuttle and the bobbin case of industrial leather shoes machine especially.

The in the past backhand machines that use of China's leather shoes industry more, the backhand of this leather shoes Sewing machines is operated machines, and the right hand holds workpiece, and shank can not obstruct the view during operation, therefore receives an acclaim.But this old-fashioned backhand machine adopts shuttle hook line, the cam take-up, so rotating speed is low, noise is big, and the life-span is low.And at present more novel leather shoes machine adopts the rotary shuttle hook line, connecting rod take-up, so rotating speed height, and noise is low, and the life-span is long.Yet this new architecture is positive mobile phone, and operation is convenient inadequately.

If but,,, could cause the polyacrylonitrile line broken lot as Fig. 1 because feed direction is opposite with hook line direction with present rotating shuttle production backhand machine, broken string would promptly be produced behind the number pin.

The purpose of this utility model is to design a kind of rotating shuttle that is applicable to the backhand machine, overcomes the problem of its acrylic fibers line broken lot, broken string, thereby improves the performance and the class of old-fashioned backhand machine greatly, increases its market competitiveness.

Design of the present utility model is such: in order to prevent the shortcoming of backhand machine polyacrylonitrile line broken lot, broken string, must design a kind of feed direction and the consistent rotating shuttle of hook line direction, thereby the direction of rotation of this rotating shuttle must be opposite with the direction of rotation of original rotating shuttle.Former rotating shuttle is rotated counterclockwise, so new rotating shuttle must the clockwise direction rotation.For make rotating shuttle can clockwise direction rotation, therefore to former rotating shuttle finish being all-trans to design.Generally speaking, the structure of new rotating shuttle and former rotating shuttle structure are got axial symmetry basically, see Fig. 1 and Fig. 2.

The rotating shuttle of general Sewing machines is by rotating shuttle body 12, shuttle race 8, and thread guide 14 and press strip 10 are formed, and wherein thread guide 14 is individually fixed on the cylindrical of rotating shuttle body 12 with press strip 10, and shuttle race 8 places rotating shuttle body 12, and can rotate therein, as shown in Figure 3.Its bobbin case is made up of body 1, shuttle door bolt 2, shuttle skin 4, spindle-skin spring 7, and wherein shuttle is fastened with a bolt or latch and combined by shuttle bolt handle 2a and the intercalation hook 2b of shuttle, and places the chute 1a of body, and spindle-skin spring 7 places spring hole 1b, and shuttle skin 4 is fixed on the cylindrical on the body, as shown in Figure 5.

A kind of use in sewing machine dextrorotation of the present utility model is to rotating shuttle, comprise bowl-type rotating shuttle body 12, shuttle race 8, thread guide 14 and press strip 10, thread guide 14 is individually fixed on the external circle of rotating shuttle with press strip 10, shuttle race 8 places rotating shuttle body 12, and can rotate therein, rotating shuttle handle 12a on rotating shuttle body 12 is positioned at the body left side, its bowlshaped mouth is towards the right side and hook line breach 12b when making progress, its hook line point 12c just is in the top and points to clockwise direction, and as when the locating slot 8a of shuttle race went to the top position, its bobbin case locating slot 8b just was positioned at the front side of peg or spindle reference column 8c.Its bobbin case, comprise body 1, shuttle door bolt 2, shuttle skin 4, spindle-skin spring 7, wherein said shuttle door bolt 2 is combined by shuttle bolt handle 2a and shuttle latch dog 2b, and places body chute 1a, and spindle-skin spring 7 places spring hole 1b, shuttle skin 4 is fixed on the cylindrical of body 1, when on the body 1 fall needle tray hole 1c opening upwards, the peg or spindle running-on is left the time, the hook end 2b of shuttle door bolt 2 just points to body 1 front side, spring hole 1b is also to open front simultaneously, shuttle skin 4 is sitting at preceding downside at this moment, and it crosses line mouth 4a end up.Referring to Fig. 2, Fig. 4 and Fig. 6.

Now be described further in conjunction with the accompanying drawings.

Fig. 1 is former counterclockwise rotation direction rotating shuttle general assembly vertical view;

Fig. 2 is the general assembly vertical view of dextrorotation of the present utility model to rotating shuttle;

Fig. 3 is the three-dimensional exploded view of former counterclockwise rotation direction rotating shuttle;

Fig. 4 is the three-dimensional exploded view of dextrorotation of the present utility model to rotating shuttle;

Fig. 5 is the three-dimensional exploded view of the bobbin case of former counterclockwise rotation direction;

Fig. 6 is the three-dimensional exploded view of dextrorotation of the present utility model to rotating shuttle.

Wherein:

1 and 1 ' bobbin case, 2 and 2 ' shuttle door bolt, spring in the 4 and 4 ' spindle-skin spring, 7 and 7 ' shuttle, 8 and 8 ' shuttle race, 10 and 10 ' press strip, 12 and 12 ' rotating shuttle body, 14 and 14 ' thread guide, 5,6,9,13 and 5 ', 6 ', 9 ', 13 ' screw.

By Fig. 1, Fig. 2 as seen, the structure that the new second child plants rotating shuttle basically axisymmetricly, the hook line of old rotating shuttle point 12c ' and outlet direction are all downward, just in time consistent with counterclockwise rotation direction.And the hook line of new rotating shuttle point 12c and outlet direction all make progress, just in time with dextrorotation to consistent.

By Fig. 3, Fig. 4 as seen, the major part that the new second child plants rotating shuttle also axisymmetricly, as rotating shuttle body 12 ' and 12, shuttle race 8 ' and 8, thread guide 11 ' and 11, press strip 10 ' and 10 is axial symmetry, and its assembly direction also axisymmetricly.

By Fig. 5, Fig. 6 as seen, the major part that new, the second child plants bobbin case also is an axial symmetry, as body 1 ' and 1, shuttle fastens 2 ' and 2 with a bolt or latch, shuttle skin 4 ' and 4 is axial symmetry, and its assembly direction is also axisymmetricly.

The utility model has the advantages that: since adopted dextrorotation to structure establish Count, fundamentally solved broken lot, the broken string problem of backhand machine nitrile wheel line, thereby Make development high-performance, high-grade backhand machine obtain technically breaking through, greatly carry The high market competitiveness of backhand machine.

Claims

1. a Sewing machines dextrorotation comprises bowl-type rotating shuttle body 12, shuttle race 8, thread guide 14 and press strip 10, wherein to rotating shuttle, described thread guide 14 is individually fixed on the external circle of rotating shuttle with press strip 10, shuttle race 8 places rotating shuttle body 12, and can rotate therein, it is characterized in that:

When the rotating shuttle handle 12a on the described rotating shuttle body 12 is positioned at body left side, its bowlshaped mouth towards the right side and hook line breach 12b when making progress, its hook line point 12c just is in the top and points to clockwise direction, and as when as described in the locating slot 8a of shuttle race when going to the top position, its bobbin case locating slot 8b just is positioned at the front side of peg or spindle reference column 8c.

2. a Sewing machines dextrorotation is to the bobbin case of rotating shuttle, comprise body 1, shuttle door bolt 2, shuttle skin 4, spindle-skin spring 7, wherein said shuttle door bolt 2 is combined by shuttle bolt handle 2a and shuttle latch dog 2b, and place body chute 1a, spindle-skin spring 7 places spring hole 1b, shuttle skin 4 is fixed on the cylindrical of body 1, it is characterized in that:

When on the body 1 fall needle tray hole 1c opening upwards, the peg or spindle running-on is left the time, the hook end 2b of described shuttle door bolt 2 just points to body 1 front side, spring hole 1b is also to open front simultaneously, this moment, the shuttle skin 4 was sitting at preceding downside, and it crosses line mouth 4a end up.