CN201990829U - Latch needle for flat knitting machine - Google Patents
Latch needle for flat knitting machine Download PDFInfo
- Publication number
- CN201990829U CN201990829U CN2011200776921U CN201120077692U CN201990829U CN 201990829 U CN201990829 U CN 201990829U CN 2011200776921 U CN2011200776921 U CN 2011200776921U CN 201120077692 U CN201120077692 U CN 201120077692U CN 201990829 U CN201990829 U CN 201990829U
- Authority
- CN
- China
- Prior art keywords
- needle
- latch
- latch needles
- needle body
- latch needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Knitting Machines (AREA)
Abstract
The utility model mainly discloses a latch needle for a flat knitting machine. The latch needle comprises a needle head and a needle body, wherein the shape of the cross-section of the needle body is square, and a rectangular groove is arranged on the upper side of the needle body. The strength of impact on the latch needle during work can be effectively reduced, and the fatigue damage of the latch needle can be reduced, therefore, the service life of the latch needle is prolonged, the latch needle can operate at a high speed, and the production efficiency is improved.
Description
Technical field
The utility model relates to textile machine, especially relates to a kind of latch needles that is applied to straight-bar machines.
Background technology
Latch needles is a kind of loop-forming element that metal material is made, in lopping braiding process, be subjected to the effect of the active force (load) of alternation all the time, the prototype structure of latch needles can constantly change, its average brute force is little by little reduced, powerful probability distribution spreads gradually, and through accumulation for a long time, fracture, inefficacy and the damage that causes latch needles is so-called latch needles fatigue damage.And the fatigue strength breakoff phenomenon of metal material always appears at the weakest link, and perhaps crackle at first appears in the concentrated position of stress, and crack propagation diffusion subsequently is until damage.
Can find that from the structure and the course of work thereof of latch needles latch needles needle body a-a place is subjected to the alternate stress effect, be easy to the concentrated fatigue strength that causes of stress and destroy.On this position, sectional area ratio is less, and geometric shape has certain variation, and is keeping the influence of residual stress in process such as needle latch abatement, syringe needle bending.
In actual production, latch needles also mostly occurred at this position because of tired the inefficacy, and caused phenomenon such as pinhock distortion, influenced production efficiency.More existing latch needles are because the design of cross section is unreasonable or weight is excessive, make the elasticity of latch needles relatively poor, the intrinsic frequency of latch needles is bigger, when the impact that is subjected to triangle, bigger impulsive force can be produced, thereby the reduction in service life of latch needles and the decline of production efficiency can be caused.
The utility model content
For improving above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of long service life, high efficiency, the better simply a kind of straight-bar machines latch needles of structure.
The technical solution adopted in the utility model is as follows: a kind of straight-bar machines latch needles, comprise the syringe needle and the needle body, needle body cross section be shaped as quadrate, and needle body upside has rectangle groove.
The length of side of described needle body cross section is with the equal diameters of syringe needle.
The width of described groove is 1/3rd of a needle body width.
Adopt the utility model, suffered impact strength in the time of can reducing latch needles work effectively, the fatigue damage of slowing down latch needles, thereby the service life of improving latch needles can make latch needles reach again simultaneously and run up, enhance productivity.
Description of drawings
Fig. 1 is the structural representation of the utility model preferred embodiment;
Fig. 2 is an A-A schematic cross-section among Fig. 1.
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.
A kind of straight-bar machines latch needles comprises syringe needle 1, needle latch 2, needle latch pin 3, spring leaf 4, rectangular channel 5, backshank 6 and the needle body 7.The needle body 7 cross sections be shaped as the quadrate structure, the length of side of cross section is equal substantially with the diameter of syringe needle 1.Certainly, the length of side in the desired cross section of latch needles of different model is different.Show suffered maximum tension stress when the square-section can reduce work with respect to circular cross-section through FEM (finite element) calculation.
In the part that the upside of the needle body 7 is dug up latch needles 2, make it form a rectangle groove 5, and the slotted eye of rectangle groove 5 can not be dark excessively, the width of rectangle groove 5 is about 1/3rd of the needle body 7 upside width, rectangle groove 5 length are unsuitable excessive.The existence of rectangle groove 5 has reduced the quality of latch needles 2, has increased the elasticity of the latch needles needle body 7, has reduced the intrinsic frequency of the needle body 7.
The foregoing description only is used to the inventive concept of the present utility model of explaining, but not to the qualification of the utility model rights protection, all utilizations time this design is carried out the change of unsubstantiality to the utility model, all should fall into protection domain of the present utility model.
Claims (3)
1. straight-bar machines latch needles is characterized in that: comprise the syringe needle and the needle body, needle body cross section be shaped as quadrate, and needle body upside has rectangle groove.
2. a kind of straight-bar machines latch needles as claimed in claim 1 is characterized in that: the length of side of described needle body cross section is with the equal diameters of syringe needle.
3. a kind of straight-bar machines latch needles as claimed in claim 1, the width that it is characterized in that described groove is 1/3rd of a needle body width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200776921U CN201990829U (en) | 2011-03-23 | 2011-03-23 | Latch needle for flat knitting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200776921U CN201990829U (en) | 2011-03-23 | 2011-03-23 | Latch needle for flat knitting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201990829U true CN201990829U (en) | 2011-09-28 |
Family
ID=44667322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200776921U Expired - Lifetime CN201990829U (en) | 2011-03-23 | 2011-03-23 | Latch needle for flat knitting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201990829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451845A (en) * | 2013-08-09 | 2013-12-18 | 绍兴县大纬针织机械有限公司 | Compound needle of full-forming computerized flat knitting machine |
-
2011
- 2011-03-23 CN CN2011200776921U patent/CN201990829U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451845A (en) * | 2013-08-09 | 2013-12-18 | 绍兴县大纬针织机械有限公司 | Compound needle of full-forming computerized flat knitting machine |
| CN103451845B (en) * | 2013-08-09 | 2015-05-20 | 绍兴县大纬针织机械有限公司 | Compound needle of full-forming computerized flat knitting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204401214U (en) | Glass fiber precursor warping thread-carrier | |
| CN201990829U (en) | Latch needle for flat knitting machine | |
| CN202968947U (en) | Knitting needle for single-cylinder computer hosiery machine with rib knitting function | |
| CN203955744U (en) | The tensioner of big drawing machine | |
| CN202786694U (en) | Fabric non-woven needle | |
| CN203525439U (en) | Composite filtering cloth with support | |
| CN203079410U (en) | Yarn feeding device support | |
| CN203513958U (en) | Knitting needle | |
| CN204849273U (en) | Protruding type arc tooth nonwoven needle with spiral crochet hook body | |
| CN202099523U (en) | Bottom-needle for flat knitting machine | |
| CN202347225U (en) | Needle bed group for knitting machine | |
| CN204550976U (en) | A kind of warp knitting machine sley point | |
| CN203653922U (en) | Fabric splitting machine | |
| CN202849721U (en) | Yarn carrier for flat knitting machine | |
| CN202415903U (en) | Non-woven fabric with toughness | |
| CN201843769U (en) | Forging piece pump shaft | |
| CN103320907B (en) | Spinning combing machine speed change combing cylinder pin gear mutation structure | |
| CN202898732U (en) | Computerized flat knitting machine latch needle used for weaving sweater | |
| CN202610485U (en) | Yarn tension device of flat knitting machine | |
| CN203440587U (en) | Needle plate of flat knitting machine | |
| CN202175802U (en) | Upper dial seat device on double jacquard knitting machine | |
| CN201169676Y (en) | Integral flat-knitting machine needle plate equipped with sinker | |
| CN202208814U (en) | Sinker assembly applied in knitting machine | |
| CN202187116U (en) | Tennis string reinforced by carbon fiber | |
| CN202883913U (en) | Guide wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |
|
| CX01 | Expiry of patent term |