CN109281044B - Heald eye detection device for automatic warp stop motion - Google Patents
Heald eye detection device for automatic warp stop motion Download PDFInfo
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- CN109281044B CN109281044B CN201811482721.5A CN201811482721A CN109281044B CN 109281044 B CN109281044 B CN 109281044B CN 201811482721 A CN201811482721 A CN 201811482721A CN 109281044 B CN109281044 B CN 109281044B
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- warp
- heald
- loom
- stop motion
- pressure sensor
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- 230000033001 locomotion Effects 0.000 title claims abstract description 67
- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 abstract description 17
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000009941 weaving Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/18—Automatic stop motions
- D03D51/20—Warp stop motions
- D03D51/28—Warp stop motions electrical
Abstract
The invention relates to a heald eye detection device for automatic warp stop motion. It mainly comprises a pressure sensor, a warp stop motion controller and a data line. The heald wires vertically penetrate through the heald frame keels of the loom, and the pressure sensor is arranged on the heald eye inner ring of each heald wire; warp threads pass through heald eyes of heald wires and do lifting movement along with a heald frame; the lifting motion of the heald frame drives the warp to move up or down to form a shed, when the warp moves up and down to the condition that the shed is full, a pressure sensor arranged on the inner ring of the heald eye detects the pressure of the warp on the heald eye, and the pressure sensor outputs a voltage signal or a current signal which is not 0 or is 0; the signal is transmitted from the pressure sensor to the warp stop motion controller via the data line and then to the loom controller, so as to control the operation of the loom. The invention saves the cost of the dropper and the mechanism thereof, and simultaneously saves a great amount of manpower and time for penetrating the dropper, thereby greatly improving the economic benefit of enterprises.
Description
Technical Field
The invention relates to the field of automatic stopping of a loom after warp breakage by utilizing tension detection of heald eyes in a loom, in particular to an automatic stopping device for detecting warp breakage of the loom.
Background
At present, warp stop motion devices are arranged on looms of textile mills, and are all installed between a rear heald and a rear beam and are components for playing a role in warp stop motion. As shown in fig. 1, a warp stop motion device 3 of a drop wire type is widely used at the time of warp yarn breakage of a loom at present, and refers to a device for stopping by dropping the drop wire by gravity to contact a drop wire frame after warp yarn breakage to send out a warp yarn breakage signal. The working principle of the warp stop motion device is as follows: as shown in fig. 2 (fig. 2 is a drawing of the components of the loom of fig. 1-4 drawn more clearly), fig. 3 (fig. 3 is a detailed view of the drop frame 6 of the automatic warp stop motion 3 of fig. 1), each warp yarn 2 on the loom beam 1 passes through a drop wire 5 which is kept at a distance from the inner layer of the drop frame due to yarn tension, and when the warp yarn breaks, the drop wire falls freely by its own weight, the inner groove tip of the drop wire contacts with the inner layer of the drop teeth on the draw bar 7, and the loom is stopped rapidly by mechanical or electrical means. According to the principle, each warp yarn passes through one drop wire, the quantity required by the drop wire by the automatic warp stop motion device is very large (namely, how many warp yarns are needed, and how many drop wires are needed to be used), so that the cost of the drop wire is high, the drop wire needs to be placed by manual operation, a great deal of manpower is consumed for placing each drop wire on each warp yarn, and the operation time of preparation engineering before weaving is greatly increased. In addition, the drop wires are prone to wear, and a large number of drop wires are prepared for standby, so that the drop wires are continuously replaced, and a lot of extra cost is required. Moreover, when the warp breaks, the blocking worker needs to look over the warp stop plate of the loom from left to right one by one to find broken warp, so that long time is spent, and the production efficiency of enterprises is affected. The phenomenon that the warp is broken and stops is also happened from time to time, so that the quality of the produced fabric is low.
Disclosure of Invention
The invention relates to a heald eye detection mechanism for automatic warp stop motion, and provides a warp stop motion device for simplifying a loom mechanism aiming at the defects and the shortcomings of the prior art.
The invention provides a heald eye detection mechanism for automatic warp stop motion, which replaces the original warp stop motion. The mechanism mainly comprises a pressure sensor (the pressure sensor is equipment for converting a pressure value into an electric signal, that is to say, when the equipment detects a certain pressure value, a voltage value or a current signal with a certain value is correspondingly output), an automatic warp stop motion controller and a data line. The heald wires are vertically threaded on the heald frame keels, and the pressure sensor is arranged on the heald eye inner ring. Warp yarn passes through heald eyes of heald wires and moves up and down along with the driving of a heald frame. The lifting movement of the heald frame drives the warp to move up and down to form a shed, when the shed is fully opened, the pressure sensor arranged on the inner ring of the heald eye detects the pressure of the warp on the heald eye, and the sensor outputs a voltage value or a current signal which is not 0 or is 0. The transmission mode of the signal is as follows: the signal is transmitted from the pressure sensor to the warp stop motion controller and then to the loom controller, so as to control the operation condition of the loom.
The pressure value is measured when the shed is full, and when the warp yarn is not broken, the pressure sensor can detect the pressure, output a voltage value or current signal which is not 0, input the signal into the comparator, and the comparator outputs a high level. When a warp yarn breaks, the pressure value detected by the pressure sensor is 0, the output voltage value or current signal is 0, the signal is input into the comparator, the output level of the comparator is 0, the pulse signal output by the comparator is sent into the warp yarn breaking automatic stop controller, and then the pulse signal is transmitted to the loom controller, so that the loom is stopped.
In order to facilitate a car blocking worker to quickly find the warp breaking position, the heald frame is divided into N areas from left to right, and is divided into A, B, C, D areas for example, the 4 areas are provided with corresponding bulbs, and after the loom stops due to the broken warp, the warp breaking automatic stop controller sends out a signal to lighten the bulb of the corresponding area where the broken warp is located. The blocking worker can quickly find the area where the broken warp yarn belongs and quickly find the position of the broken warp yarn according to the setting, so that the warp yarn is connected quickly, and the loom can continue to run quickly, thereby greatly improving the quality of products and the weaving efficiency of the loom, producing more cloth with good quality for enterprises, and creating more value for the enterprises.
Compared with the prior art, the invention has the following advantages:
1) The invention relates to a heald eye detection mechanism for automatic warp stop motion, which improves the defects and shortcomings of the prior art and provides an automatic warp stop motion device for simplifying loom mechanisms.
2) Compared with the warp stop motion device, the warp stop motion device has the advantages of more reliable performance and higher sensitivity, and can stop rapidly and automatically in time once the warp stop occurs, thereby greatly improving the quality of products and the weaving efficiency of a loom.
3) Compared with a warp stop motion device, the warp stop motion device has the warp stop motion zone display function: according to the width of the heald frame and the requirements, the heald frame can be divided into N areas, corresponding bulbs are arranged in each area, once the warp yarns in a certain area break, the loom is rapidly stopped, the bulbs arranged in the area are lightened, and a blocking worker can rapidly find the broken warp yarns according to the arrangement and connect the warp yarns, so that the loom can rapidly continue to operate, the weaving efficiency of the loom is greatly improved, and more cloth with good quality is produced for enterprises.
4) According to the warp stop motion device, 2 steps of drafting and inserting a stop motion sheet are simplified into 1 step, so that the production efficiency of enterprises is greatly improved.
5) The warp stop motion device of the current loom is characterized in that each warp yarn passes through one warp yarn and the warp yarn is easy to wear, the required quantity of the warp yarn is very large, for example, 30000 warp yarns are required for a warp beam with the width of 3 meters, and the heald eye detection mechanism of the warp stop motion saves a large quantity of warp yarn.
6) Compared with a stop-warp stop motion device, the stop-warp stop motion device has the advantages that a large number of stop-warp sheets are saved, the cost for purchasing a large number of stop-warp sheets and mechanisms thereof is saved, and a large number of material resources are saved.
7) Compared with a stop-warp stop motion device, the stop-warp stop motion device does not need to be manually operated to place the stop-warp sheet any more, saves a great amount of manpower and time for threading the stop-warp sheet, and greatly reduces the manpower and time for preparing engineering before weaving of a loom.
8) The warp stop motion device used in the existing loom is arranged between the back heald and the back beam, and the occupied area is quite large.
9) Compared with a stop warp automatic stop motion device, the stop warp automatic stop motion device reduces friction to warp yarns in the weaving process of a loom, ensures the quality of the warp yarns and ensures the quality of products.
Drawings
FIG. 1 is a loom top view;
FIG. 2 is a drawing through;
figure 3 is a view of a stop motion device for stopping a warp stop motion;
FIG. 4 is a top view of the loom of the present invention;
FIG. 5 is a schematic view of a heald eye detection mechanism for automatic warp stop motion according to the present invention;
FIG. 6 is a diagram of the movement of the heddle;
fig. 7 is a schematic diagram of the control of the heald eye detecting mechanism for automatic warp stop motion according to the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings
As shown in fig. 4, the loom of the present invention does not use a stop-warp stop motion device, but uses a heald eye detection mechanism for stop-warp stop motion. As shown in fig. 5 (fig. 5 depicts the heald frame 4 in fig. 4 and the heald wire heald eye detection mechanism of the invention with automatic warp stop motion), the upper frame (1) (metal) of the heald frame, the lower frame (2) (metal) of the heald frame, the right frame (3) of the heald frame and the left frame of the heald frame are connected by bolts, the heald wire (5) is vertically threaded on the heald frame keel (4), and the pressure sensor 8 is arranged on the heald eyeAn inner ring. Warp yarn passes through heald eyes of heald wires and moves up and down along with the driving of a heald frame. As shown in figure 6 (figure 6 is a motion diagram of heald), the lifting motion of heald frame drives warp yarn to move up and down to form upper portionAnd the lower shed, the upper warp yarn moves to the B1 position, the lower warp yarn moves to the B2 position, at this time, a full shed is formed, and the pressure sensor arranged on the inner ring of the heald eye can generate interaction force along with the up and down movement of the warp yarn due to the extrusion of the warp yarn, so that the pressure sensor detects the pressure generated by the extrusion of the warp yarn, and outputs a voltage value or current signal which is not 0 or 0. The pressure sensor will detect the data via the data line +.>For transmission, the data line circuit is arranged as: as shown in fig. 7 (fig. 7 is a schematic diagram of the control of the heald eye detecting mechanism of the automatic warp stop motion of the present invention), the data line is first laid out from the pressure sensor 8, the line is laid out to the heald frame keel in the upward direction of the heald wire, and then the line is connected to the automatic warp stop motion controller->Finally, the wiring is connected to the loom controller +.>A circuit is formed. And the transmission path of the signal is: the signal is transmitted from the pressure sensor to the warp stop motion controller and then to the loom controller, so as to control the operation condition of the loom.
The pressure value is measured when the shed is full, and the pressure sensor can detect the pressure when the warp yarn is not broken and output a voltage value or a current signal (not 0 value). However, when a warp yarn breaks, the pressure value detected by the pressure sensor is 0, and the output voltage value or current signal is 0. Further, since the signal output from the sensor is relatively small, it is necessary to amplify the signal by an amplifying circuit and then input the signal to the comparator. When the signal is greater than 0, the comparator outputs a high level; and when the signal is equal to 0, the level of the comparator output is 0. The signal becomes a pulse signal at this time. The pulse signal output by the comparator is sent to the warp stop motion controller and then is sent to the loom controller, so that the loom is stopped.
In order to facilitate a car blocking worker to quickly find the warp breaking position, the number of the areas divided by the heald frame can be determined according to the width of the heald frame and the requirements, and the heald frame can be divided into 1, 2 and 3 … … N areas, and then corresponding bulbs are arranged in each area. As shown in fig. 5, taking a heald frame with a width of 1.6 meters as an example, the heald frame is divided into four areas A, B, C, D in the left-right direction, and the 4 areas are respectively provided with corresponding light bulbs, namely a, b, c, d light bulbs. After the loom stops due to the broken warp, the broken warp automatic stop controller sends out a signal to lighten the bulb of the corresponding area where the broken warp is located, and a blocking worker can quickly find the area where the broken warp belongs and quickly find the position of the broken warp according to the setting, so that the warp is connected quickly, the loom can continue to run quickly, the quality of products and the weaving efficiency of the loom are greatly improved, and more cloth with good quality is produced for enterprises. Therefore, the loom provided with the warp stop motion device for simplifying the loom mechanism can greatly reduce the warp stop motion point of the fabric, thereby guaranteeing the quality of the fabric. In addition, the heald eye detection mechanism for automatic warp stop motion saves the cost of the warp stop motion and the mechanism thereof, and simultaneously saves a great amount of manpower and time for threading the warp stop motion, thereby greatly improving the economic benefit of enterprises. The warp stop motion device of the invention simplifies the drafting and warp inserting stop motion of 2 steps into 1 step, thereby greatly improving the production efficiency of enterprises.
Claims (2)
1. Heald eye detection device of broken warp stop motion mainly comprises pressure sensor, broken warp stop motion controller and data line, its characterized in that:
the heald wires vertically penetrate through the heald frame keels of the loom, and the pressure sensor is arranged on each heald eye inner ring; warp threads pass through heald eyes of heald wires and are driven by a heald frame to do lifting motion; the lifting motion of the heald frame drives the warp to move up and down to form a shed, when the shed is fully opened, a pressure sensor arranged on the inner ring of the heald eye detects the pressure of the warp on the heald eye, and the sensor outputs a voltage value or a current signal which is not 0 or is 0; the signal is transmitted to the warp stop motion controller from the pressure sensor through the data line and then to the loom controller, so that the operation condition of the loom is controlled;
measuring a pressure value when the shed is fully opened, detecting the pressure by the pressure sensor when the warp is not broken, outputting a voltage value or a current signal which is not 0, inputting the signal into the comparator, and outputting a high level by the comparator; when a warp yarn breaks, the pressure value detected by the pressure sensor is 0, the output voltage value or current signal is 0, the signal is input into the comparator, the signal is low level output by the comparator, at the moment, the signal becomes a pulse signal, and the pulse signal output by the comparator is sent into the warp breaking automatic stop controller and then is sent to the loom controller, so that the loom is stopped.
2. The warp stop motion heddle eye detection device of claim 1, wherein: the heald frame is divided into a plurality of areas, corresponding bulbs are arranged in each area, and after the loom stops due to broken warp, the warp stop motion controller sends out a signal to lighten the bulbs in the corresponding area where the broken warp is located.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482721.5A CN109281044B (en) | 2018-12-05 | 2018-12-05 | Heald eye detection device for automatic warp stop motion |
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|---|---|---|---|
| CN201811482721.5A CN109281044B (en) | 2018-12-05 | 2018-12-05 | Heald eye detection device for automatic warp stop motion |
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| CN109281044A CN109281044A (en) | 2019-01-29 |
| CN109281044B true CN109281044B (en) | 2024-01-30 |
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| CN110258008A (en) * | 2019-07-11 | 2019-09-20 | 台嘉玻璃纤维有限公司 | A kind of flimsy material breaks sensed device |
| CN113463255A (en) * | 2021-07-01 | 2021-10-01 | 际华三五四二纺织有限公司 | Automatic yarn skipping stop device of dobby loom |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0407824A2 (en) * | 1989-07-11 | 1991-01-16 | Zellweger Uster Ag | Warp tension monitoring device on a loom and the use of the device as warp stop motion |
| CN2426884Y (en) * | 2000-05-09 | 2001-04-18 | 夏文万 | Cracked ends zone display device for loom |
| CN101949079A (en) * | 2010-09-28 | 2011-01-19 | 振石集团恒石纤维基业有限公司 | Loom warp breaking protective device |
| CN204959232U (en) * | 2015-09-16 | 2016-01-13 | 佛山市晋新机械有限公司 | Weft machine and broken yarn detects circuit wiring structure of automatic stop ware thereof |
| CN108914342A (en) * | 2018-09-18 | 2018-11-30 | 山东日发纺织机械有限公司 | A kind of the circuit induction type warp stop motion and its parking method of loom |
| CN209307569U (en) * | 2018-12-05 | 2019-08-27 | 浙江理工大学 | A kind of heald harness eye detection device of warp stop motion |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5217992B2 (en) * | 2008-12-10 | 2013-06-19 | 株式会社豊田自動織機 | Warp cutting detection device in loom |
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2018
- 2018-12-05 CN CN201811482721.5A patent/CN109281044B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0407824A2 (en) * | 1989-07-11 | 1991-01-16 | Zellweger Uster Ag | Warp tension monitoring device on a loom and the use of the device as warp stop motion |
| CN2426884Y (en) * | 2000-05-09 | 2001-04-18 | 夏文万 | Cracked ends zone display device for loom |
| CN101949079A (en) * | 2010-09-28 | 2011-01-19 | 振石集团恒石纤维基业有限公司 | Loom warp breaking protective device |
| CN204959232U (en) * | 2015-09-16 | 2016-01-13 | 佛山市晋新机械有限公司 | Weft machine and broken yarn detects circuit wiring structure of automatic stop ware thereof |
| CN108914342A (en) * | 2018-09-18 | 2018-11-30 | 山东日发纺织机械有限公司 | A kind of the circuit induction type warp stop motion and its parking method of loom |
| CN209307569U (en) * | 2018-12-05 | 2019-08-27 | 浙江理工大学 | A kind of heald harness eye detection device of warp stop motion |
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