CN201254646Y - Sewing machine needle plate with automatic cleaning function - Google Patents
Sewing machine needle plate with automatic cleaning function Download PDFInfo
- Publication number
- CN201254646Y CN201254646Y CNU2008201524875U CN200820152487U CN201254646Y CN 201254646 Y CN201254646 Y CN 201254646Y CN U2008201524875 U CNU2008201524875 U CN U2008201524875U CN 200820152487 U CN200820152487 U CN 200820152487U CN 201254646 Y CN201254646 Y CN 201254646Y
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- needle plate
- sewing machine
- cloth
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Abstract
The utility model relates to a needle board of sewing machine with automatic cleaning function, in particular to a needle board of double-needle lockstitch sewing machine, belonging to a needle board of sewing machine used in the industry. The utility model comprises a middle rib, characterized in that: the back of the middle rib is provided with a plurality of oblique teeth, the plural oblique teeth are arranged in the length direction of the middle rib, the inclined angle of each oblique tooth is consistent. As the speed that the chopped cloth falls off the cloth feeding dog is accelerated as the thickness of the chopped cloth is increased, the utility model has self-adaptability for different operation speed and operation environment of sewing machine, thereby the utility model can finish the treatment of various cloth materials with different thickness ideally.
Description
Technical field
The utility model relates to the needle plate of industrial sewing machines, particularly the double needle lockstitch machine needle plate.
Background technology
There is the parallel helical teeth of three rows in existing double needle lockstitch machine needle plate front, and middle muscle bottom surface is the plane, is installed in by screw on the base plate of Sewing machines.
The major defect of this double needle lockstitch machine needle plate is: sewing can produce the cloth bits in the process of making, and the cloth bits are deposited in around the feed dog, particularly are deposited in the middle of the feed dog.Because existing Sewing machines can not be cleared up the periodontal cloth bits of work feed automatically, along with the increase of workload, the cloth bits can be cumulative on the feed dog.Along with the accumulation of cloth bits, between the bottom surface of the middle muscle of double needle lockstitch machine needle plate and feed dog, form thick cloth bits layer.Can form extruding by cloth bits layer centering muscle in the motion process of feed dog, cause feed dog that needle plate is up pushed up, the feed dog calibrated altitude displacement adjusting influences sewing quality.Can occur when serious because foreign material overheaps such as cloth bits are given situation about squeezing off the middle muscle of double needle lockstitch machine needle plate.
Secondly, when Sewing machines service time was longer, the cloth bits that accumulate over a long period can pollute sewing, had influence on sewing quality and sewing is attractive in appearance.
Because above variety of problems, the operator has to go to remove with hand foreign material such as cloth bits regularly, just can make the Sewing machines operate as normal, stablizes sewing performance, guarantees that sewing quality and sewing are attractive in appearance.
How solving the problems referred to above of existing Sewing machines, has been a technical task of the sector.
The utility model content
The purpose of this utility model is to provide a kind of Sewing machines needle plate with automatic cleaning function, to solve the problem that existing Sewing machines can not be cleared up the foreign material such as cloth bits that accumulate on the feed dog automatically.
The problem that the utility model solved can realize by the following technical solutions:
Have the Sewing machines needle plate of automatic cleaning function, comprise middle muscle, it is characterized in that, the described middle muscle back side is furnished with a plurality of helical teeth, and described a plurality of helical teeth are arranged on the length direction of middle muscle, the angle of inclination unanimity of each helical teeth.
Above-mentioned design is directed to the cleaning work of the foreign material such as cloth bits that accumulate on the feed dog, is that representative is set forth the course of work of the present utility model and principle with the cloth bits only below.
When using Sewing machines, make the cloth bits that sewing produces in the process, be stacked into around the feed dog, under the gravity effect, drop to double needle lockstitch machine needle plate below, part cloth bits are fallen between the middle muscle below and feed dog of double needle lockstitch machine needle plate, form cloth bits layer.Along with increasing service time, fall the middle muscle below of double needle lockstitch machine needle plate and the cloth bits quantity between the feed dog increases thereupon.
The height of cloth bits layer increases thereupon, and then contacts with helical teeth that the middle muscle back side is furnished with.Cloth bits layer is done back and forth movement with feed dog on middle muscle length direction.Because each helical teeth has the angle of inclination, and the angle of inclination unanimity, thus when cloth bits layer is done back and forth movement with respect to the helical teeth of middle muscle below, direction of motion difference, the frictional force size is also inequality.Because the frictional force difference, cloth bits layer can be to the bigger direction motion of frictional force.Along with the increase of back and forth movement number of times, move distance increases thereupon, finally comes off on feed dog.
The speed that cloth bits layer comes off on feed dog increases with the suitable increase of the frictional force difference of both direction, and the frictional force difference increases with the increase of cloth bits layer thickness, and the frictional force difference also increases with the increase of helical teeth gradient.
For the frictional force difference of suitable increase both direction, the gradient of helical teeth is decided to be 50 to be spent between 70 degree, is preferably 60 degree.
Because the speed that the cloth bits come off on feed dog in the utility model is accelerated with the increase of cloth bits layer thickness, operating rate and the working environments different for Sewing machines have adaptivity.Therefore, can finish the processing of various heterogeneity linings, different-thickness lining very goodly.
After adopting the utility model, also have following beneficial effect:
In Sewing machines work process, in time automatically remove the foreign material such as cloth bits of double needle lockstitch machine needle plate below, stopped because of the foreign material on the feed dog too much, made between double needle lockstitch machine needle plate baseplane and the feed dog to produce extruding, thereby influence the standard adjustment problem highly of feed dog; The foreign material such as cloth bits that produced after having avoided working long hours pollute the problem of sewing; Avoided because of foreign material overheap under the needle plate baseplane situation that the middle muscle of needle plate is squeezed off.
The utility model improves on the middle muscle plane of double needle lockstitch machine needle plate, makes sewing performance obtain optimization, and makes the operator in operating process, needn't consider the cleaning work of foreign material such as cloth bits again, has improved operating efficiency greatly.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is for using Sewing machines structural representation of the present utility model;
Fig. 2 is the utility model structure schematic diagram;
Fig. 3 is the utility model cross-sectional view.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
With reference to Fig. 1, be fixed with double needle lockstitch machine needle plate 2 on the base plate 1, double needle lockstitch machine needle plate 2 middle parts are provided with middle muscle 3.Double needle lockstitch machine needle plate 2 is provided with feed dog 4.The space of muscle 3 both sides during two dispatch cloth teeth 5 of feed dog 4 pass on the double needle lockstitch machine needle plate 2.
Feed dog 4 is done back and forth movement with respect to double needle lockstitch machine needle plate 2 during use on the length direction of middle muscle 3, thereby the cloth of double needle lockstitch machine needle plate 2 tops is played the feeding effect.
With reference to Fig. 2, the back side of middle muscle 3 is furnished with a plurality of helical teeth 6 on the double needle lockstitch machine needle plate 2.A plurality of helical teeth 6 are arranged to the other end of middle muscle 3 successively from middle muscle 3 one ends.
With reference to Fig. 3, the incline direction unanimity of each helical teeth 6, the angle of inclination suits to be selected in 50 and spends between 70 degree, is preferably 60 degree.
When using Sewing machines, make the cloth bits that produce in the process, be stacked into around the feed dog 4, under the gravity effect, drop to double needle lockstitch machine needle plate 2 belows, part cloth bits are fallen between middle muscle 3 belows and feed dog 4 of double needle lockstitch machine needle plate 2, form cloth bits layer.Along with increase service time, the cloth bits quantity in falling between muscle 3 belows and the feed dog increases thereupon.
The height of cloth bits layer increases thereupon, and then contacts with helical teeth 6 that middle muscle 3 back sides are furnished with.Cloth bits layer is done back and forth movement with feed dog 4 on middle muscle 3 length directions.Because each helical teeth 6 has the angle of inclination, and the angle of inclination unanimity, thus when cloth bits layer is done back and forth movement with respect to the helical teeth of middle muscle 3 belows, direction of motion difference, the frictional force size is also inequality.Because the frictional force difference, cloth bits layer can be to the bigger direction motion of frictional force.Along with the increase of back and forth movement number of times, move distance increases thereupon, finally comes off on feed dog 4.Reach the effect of automated cleaning.
The speed that cloth bits layer comes off on feed dog 4 increases with the suitable increase of the frictional force difference of both direction, and the frictional force difference increases with the increase of cloth bits layer thickness, and the frictional force difference also increases with the increase of helical teeth 6 gradients.
The gradient that practice shows helical teeth is decided to be 50 when spending between 70 degree, and the frictional force difference of both direction is comparatively suitable.Automated cleaning best results when the gradient of helical teeth is decided to be the 60 degree left and right sides.
Have foregoing as seen, the speed that cloth bits come off on feed dog in the utility model can be accelerated with the increase that cloth is considered layer thickness to be worth doing, and operating rate and the working environments different for Sewing machines have adaptivity.Therefore, can finish the processing of various heterogeneity linings, different-thickness lining very goodly.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. have the Sewing machines needle plate of automatic cleaning function, comprise middle muscle, it is characterized in that, the described middle muscle back side is furnished with a plurality of helical teeth, and described a plurality of helical teeth are arranged on the length direction of middle muscle, the angle of inclination unanimity of each helical teeth.
2. the Sewing machines needle plate with automatic cleaning function according to claim 1 is characterized in that, the gradient of described helical teeth is decided to be 50 and spends between 70 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201524875U CN201254646Y (en) | 2008-08-29 | 2008-08-29 | Sewing machine needle plate with automatic cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201524875U CN201254646Y (en) | 2008-08-29 | 2008-08-29 | Sewing machine needle plate with automatic cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201254646Y true CN201254646Y (en) | 2009-06-10 |
Family
ID=40737965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201524875U Expired - Fee Related CN201254646Y (en) | 2008-08-29 | 2008-08-29 | Sewing machine needle plate with automatic cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201254646Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176563A (en) * | 2020-11-02 | 2021-01-05 | 温州慕卡蕾纺织品有限公司 | Sewing machine needle plate with automatic cleaning function |
-
2008
- 2008-08-29 CN CNU2008201524875U patent/CN201254646Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176563A (en) * | 2020-11-02 | 2021-01-05 | 温州慕卡蕾纺织品有限公司 | Sewing machine needle plate with automatic cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20120829 |