CN107164878B - Broken needle detection mechanism of circular knitting machine - Google Patents
Broken needle detection mechanism of circular knitting machine Download PDFInfo
- Publication number
- CN107164878B CN107164878B CN201710524146.XA CN201710524146A CN107164878B CN 107164878 B CN107164878 B CN 107164878B CN 201710524146 A CN201710524146 A CN 201710524146A CN 107164878 B CN107164878 B CN 107164878B
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- needle
- saddle
- knitting
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- detection mechanism
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- 238000009940 knitting Methods 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 230000003068 static effect Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/10—Indicating, warning, or safety devices, e.g. stop motions
- D04B35/18—Indicating, warning, or safety devices, e.g. stop motions responsive to breakage, misplacement, or malfunctioning of knitting instruments
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Abstract
The invention relates to a broken needle detection mechanism of a knitting circular weft knitting machine, which is arranged on a cam of a saddle and comprises a pin arranged on the cam, a swinging piece rotatably arranged on the free end of the pin, a sensor arranged on the saddle and a return spring arranged on the saddle, wherein the free end of the return spring is connected with the swinging piece, the swinging piece is arranged in the cam and is positioned below a needle butt of a knitting needle, when the knitting needle moves up and down, the needle butt can be in contact with the swinging piece and presses the swinging piece to rotate, and when the swinging piece swings, the sensor can be triggered.
Description
Technical Field
The invention relates to a broken needle detection mechanism of a circular knitting machine.
Background
Knitting circular knitting machines are equipped with a large number of needles which, subject to a certain degree of wear, can easily break. Circular knitting machines are often used for high-volume continuous production. If the needles are broken, defects are caused in the produced fabric, resulting in waste. The needle breakage can occur again and is a non-predictive, unpredictable occurrence, and therefore the monitoring of the needles of the operating knitting machine, i.e. the needle breakage detection, is an indispensable and important component thereof, which plays a crucial role in improving the product quality and reducing the defective and defective products.
The conventional grating broken needle detection device in the market is influenced by reasons such as environmental light interference or pollution of flying cotton impurities to a detection lens due to the fact that a needle hook of a knitting needle shakes during the motion process when the conventional grating broken needle detection device is installed and detects fine needle pitch and high-speed response, so that the grating detection device cannot accurately detect completely, and the false alarm is easily caused frequently.
Disclosure of Invention
The invention aims to provide a broken needle detection mechanism of a knitting circular weft, which has a stable structure and can effectively monitor broken needles.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a broken needle detection mechanism of knitting circular knitting machine, on its triangle of locating the saddle, including locating pin on the triangle, rotationally locate the swing piece on the pin free end, locate the sensor on the saddle, locate the reset spring on the saddle, the swing piece is connected to reset spring's free end, the swing piece is located in the triangle, just the swing piece is located the below of the butt of knitting needle, and when the knitting needle up-and-down motion, the butt can just oppress the swing piece with swing piece contact and rotate, and when the swing piece swings, can trigger the sensor.
Preferably, a sleeve is arranged on the saddle, the sensor is arranged in the sleeve, and a bolt for locking the sensor is arranged on the sleeve.
Preferably, when the return spring and the swinging piece are in a static state, the upper end surface of the swinging piece is inclined.
The technical scheme has the following beneficial effects: the broken needle detection mechanism of the circular knitting machine realizes stable signal output through mechanical motion, thereby realizing accurate broken needle detection, has simple structure and lower cost, is simpler to maintain and repair, is mainly arranged through the change of the motion state of a knitting needle during actual production and the motion state after breakage, can move downwards after breakage through the knitting needle, bears the downward movement of the knitting needle through the swing of the swing sheet, and the swing of the swing sheet can enter the detection range of a sensor, thereby transmitting the breakage state of the knitting needle to a computer host to send out a signal, and can reset the swing sheet through a reset spring, namely, the mechanism can normally operate after the knitting needle is replaced; furthermore, the distance between the sensor and the swinging sheet can be adjusted by arranging the sleeve and the bolt; furthermore, when the return spring and the swinging piece are in a static state, the upper end surface of the swinging piece is inclined, so that the swinging of the swinging piece can be more smoothly realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view showing the state of the detecting mechanism for detecting the broken needle of the circular knitting machine when the knitting needle is intact;
FIG. 3 is a schematic view showing the state of the detecting mechanism for detecting the broken needle of the circular knitting machine when the knitting needle is damaged;
FIG. 4 is a schematic view of the structure of the needle with the swing plate engaged with the butt;
fig. 5 is a schematic structural view of the matching of the swing blade and the needle butt when the knitting needle is damaged.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the present embodiment provides a broken needle detection mechanism for a circular knitting machine, which is disposed on a cam 2 of a saddle 1, and includes a pin 6 disposed on the cam 2, a swing plate 7 rotatably disposed on a free end of the pin 6, a sleeve 4 disposed on the saddle 1, a sensor 5 disposed in the sleeve 4, and a return spring 8 disposed on the saddle 1, wherein the sleeve 4 is provided with a bolt 41 for locking the sensor 5, a notch 71 is disposed on a lower hem of the swing plate 7, a free end of the return spring 8 is connected to the notch 71 of the swing plate 7, a through hole 21 communicated with a track 22 is disposed in the cam 2, the swing plate 7 is disposed in the through hole 21 of the cam 2, and the swing plate 7 is disposed below a butt 31 of a knitting needle 3, when the knitting needle 3 moves up and down, the butt 31 can contact with the swing plate 7 and press the swing plate 7 to rotate, and when the swing plate 7 swings, the sensor 5 can be triggered. When the return spring 8 and the swinging piece 7 are in a static state, the upper end surface of the swinging piece 7 is inclined.
The knitting needle 3 has downward inertia acting force in the downward needle pressing and yarn bending motion, and referring to fig. 2 and 4, in normal knitting, the needle butt 31 moves along the upper part of the track 22 of the triangle 2 under the acting force such as the tension of the yarn 9; referring to fig. 3 and 5, in a state that the needle hook is damaged and does not hook the yarn 9, the needle butt 31 'moves along a track below the track 22 of the cam 2 due to inertia acting force, at this time, the needle butt 31' contacts the upper part of the swinging piece 7, the swinging piece 7 rotates, the lower part enters the range of the sensor 5, and the sensor 5 generates a signal and sends a warning signal to a computer host.
The saddle, the triangle and the butt are all conventional structures in the field, and the specific structural form can be seen in the Chinese patent previously disclosed by the applicant: 201120252853.6, see also other prior patents related to the present applicant.
The above is only a preferred embodiment of the invention and all equivalent modifications made by those skilled in the art according to the claims fall within the scope of the present invention.
Claims (3)
1. The utility model provides a broken needle detection mechanism of knitting circular weft knitting machine, its triangle of locating the saddle on, its characterized in that: including locating pin on the triangle, rotationally locate the swing piece on the pin free end, locate the sensor on the saddle, locate reset spring on the saddle, swing piece is connected to reset spring's free end, swing piece is located in the triangle, just swing piece is located the below of the butt of knitting needle, and when the knitting needle up-and-down motion, the butt can just oppress the swing piece with swing piece contact and rotate, and when swing piece swing, can trigger the sensor.
2. The broken needle detection mechanism of the circular knitting machine according to claim 1, characterized in that: the saddle is provided with a sleeve, the sensor is arranged in the sleeve, and the sleeve is provided with a bolt for locking the sensor.
3. The broken needle detection mechanism of the circular knitting machine according to claim 1, characterized in that: when the return spring and the swinging piece are in a static state, the upper end surface of the swinging piece is inclined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710524146.XA CN107164878B (en) | 2017-06-30 | 2017-06-30 | Broken needle detection mechanism of circular knitting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710524146.XA CN107164878B (en) | 2017-06-30 | 2017-06-30 | Broken needle detection mechanism of circular knitting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107164878A CN107164878A (en) | 2017-09-15 |
| CN107164878B true CN107164878B (en) | 2022-09-13 |
Family
ID=59827502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710524146.XA Active CN107164878B (en) | 2017-06-30 | 2017-06-30 | Broken needle detection mechanism of circular knitting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107164878B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3785177A (en) * | 1970-07-29 | 1974-01-15 | Gunze Co Ltd | Device for sensing a broken yarn of a circular knitting machine |
| US4026128A (en) * | 1975-12-12 | 1977-05-31 | Universal Textile Machine Corporation | Faulty needle sensing |
| US4366681A (en) * | 1978-05-31 | 1983-01-04 | Meiners Electronic Controls Ltd. | Detection of flaws, breakages, discontinuities and the like |
| US6035669A (en) * | 1999-05-28 | 2000-03-14 | Monarch Knitting Machinery Corp. | Apparatus and method for detecting broken hooks of needles in a knitting machine |
| US6318132B1 (en) * | 2001-03-19 | 2001-11-20 | Monarch Knitting Machinery Corp. | Apparatus and method for detecting broken hooks of needles in a knitting machine, and needles for use with same |
| CN206858769U (en) * | 2017-06-30 | 2018-01-09 | 石狮市宝翔针织机械有限公司 | A kind of knitting circular knitting machine broken pin test mechanism |
-
2017
- 2017-06-30 CN CN201710524146.XA patent/CN107164878B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107164878A (en) | 2017-09-15 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 362000 Yushan Industrial Zone, Shibi village, Hanjiang Town, Shishi City, Quanzhou City, Fujian Province Applicant after: Fujian Baoxiang Knitting Technology Co.,Ltd. Address before: 362000 Yushan Industrial Zone, Shibi village, Hanjiang Town, Shishi City, Quanzhou City, Fujian Province Applicant before: SHISHI CITY BAOXIANG KNITTING MACHINERY Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |