CN109322074A - The automatic line sending of bayonet carpet flocking machine and testing agency - Google Patents
The automatic line sending of bayonet carpet flocking machine and testing agency Download PDFInfo
- Publication number
- CN109322074A CN109322074A CN201811136027.8A CN201811136027A CN109322074A CN 109322074 A CN109322074 A CN 109322074A CN 201811136027 A CN201811136027 A CN 201811136027A CN 109322074 A CN109322074 A CN 109322074A
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- China
- Prior art keywords
- yarn
- line sending
- pulley
- sending
- detection mechanism
- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
- D05C15/04—Tufting
- D05C15/08—Tufting machines
- D05C15/16—Arrangements or devices for manipulating threads
- D05C15/18—Thread feeding or tensioning arrangements
Abstract
The present invention relates to a kind of automatic line sending of bayonet carpet flocking machine and testing agencies, including several tubes, yarn-feeding roller wheel, send yarn motor, piezoelectric type sense silk device, limitation ring, line sending balance detection mechanism and alarm, yarn-feeding roller wheel is by sending yarn motor driven automatic traction yarn from several tubes, piezoelectric type sense silk device, limitation ring and line sending balance detection mechanism are set in turn between tube and yarn-feeding roller wheel, piezoelectric type sense silk device detects the teasel root of yarn transmission and connect with alarm, the aperture of limitation ring is less than or equal to knit rifle pin hole, the start and stop or revolving speed for sending yarn motor are controlled by the thread-feeding amount that line sending balance detection mechanism detects yarn, line sending balance detection mechanism is connected to alarm.The present invention realizes the automatic line sending of yarn under the premise of guaranteeing line sending amount balance, can to yarn with the presence or absence of broken string, exhaust or the case where tieing is measured in real time, be conducive to improve processing quality and production efficiency.
Description
Technical field
The invention belongs to the technical field of flocking machine line sending, more particularly to a kind of automatic line sending of bayonet carpet flocking machine and
Testing agency.
Background technique
With the continuous improvement of people's living standards, the promotion of artistic appreciation and esthetic sentiment, high-grade hand-made carpet is gradually
Enter into common people family.For hand-made carpet because pattern content is abundant, three-dimensional sense is strong, use value with higher, reserve value and glad
Reward value, for many years deep welcome by domestic and international client.But since its production efficiency is low, the production cycle is long, and labour cost is high, valence
The reasons such as lattice are high cannot be used widely.Therefore, automatic embroidered carpet robot comes into being.However, applying hand
During blanket bayonet robot progress in building site is woven, there are the following problems can seriously affect machining efficiency:
(1) transmission of yarn is moved back and forth by knitting rifle from tube ' dragging ' completely, and yarn can not be in free shape when flocking
State, when it is tight when pine, lead to the carpet surface poor quality processed；
(2) if yarn there are larger connector can not by pinprick, before causing yarn coil to get lodged in pinprick, make machine sky prick and
Influence efficiency；
(3) due to winder when yarn be wound knotting and cannot smooth line sending, cause lack yarn；
(4) when generation broken string or yarn exhaust, worker, which fails to discover at the first time, leads to empty bundle, influences efficiency.
In short, yarn whether can regular supply be to guarantee that can automatic bayonet flocking machine device people process to high efficiency high-quality
The key of finished product out, it is therefore necessary to develop a kind of dress of automatic line sending and detection suitable for hand-made carpet bayonet robot
It sets.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of automatic line sending of bayonet carpet flocking machine and testing agency, solutions
Pinprick certainly can not be passed through because yarn line sending amount is uneven, yarn knots in process, yarn breakage exhausts product caused by reason
The technical problem that quality reduces, processing efficiency is low.
The technical solution adopted by the present invention to solve the technical problems is to provide a kind of automatic line sending of bayonet carpet flocking machine
And testing agency, including several tubes, yarn-feeding roller wheel, send yarn motor, piezoelectric type sense silk device, limitation ring, line sending balance detector
Structure and alarm, the yarn-feeding roller wheel is by sending yarn motor driven automatic traction yarn from several tubes, the piezoelectric type sense
Silk device, limitation ring and line sending balance detection mechanism are set in turn between tube and yarn-feeding roller wheel, the piezoelectric type sense silk device inspection
It surveys the teasel root of yarn transmission and is connect with alarm, the aperture of the limitation ring is less than or equal to knit rifle pin hole, described to send yarn motor
Start and stop or revolving speed by line sending balance detection mechanism detect yarn thread-feeding amount controlled, the line sending balance detector
Structure is connected to alarm.
Line sending balance detection mechanism includes pulley and microswitch, and the pulley is set to thread-feeding amount safety threshold up and down
Between value, the pulley upper end is connect with microswitch, yarn and the elastic up and down motion with yarn are transmitted in downside, described to send yarn
The start and stop of motor trigger microswitch by pulley motion and are controlled.
Line sending balance detection mechanism includes pulley, high-order photoelectric sensor and low level photoelectric sensor, the pulley
It is set between thread-feeding amount or more secure threshold, the high position photoelectric sensor is set to secure threshold position, the low level
Photoelectric sensor is set to lower secure threshold position, transmission yarn and the elastic up and down motion with yarn on the downside of the pulley, institute
It states and the start and stop of yarn motor is sent to be controlled by the position that high-order photoelectric sensor and low level photoelectric sensor detect pulley.
Line sending balance detection mechanism includes pulley and photoelectricity height sensor, and the pulley is set to thread-feeding amount or more
Between secure threshold, the photoelectricity height sensor is set on pulley, transmission yarn and the pine with yarn on the downside of the pulley
Tight to move up and down, the revolving speed for sending yarn motor is controlled by the height that photoelectricity height sensor detects pulley.
Line sending balance detection mechanism will test signal and be sent to alarm touching when the position of the pulley exceeds secure threshold
Hair alarm.
The piezoelectric type sense silk device has several sense wire holes passed through for yarn, is equipped with piezoelectric sensing in the sense wire hole
Device.
The aperture of the limitation ring, which is less than, knits rifle pin hole and matches with the yarn thickness of closing up of number of share of stock yarn is needed.
The yarn-feeding roller wheel includes active roll and driven roller, and the start and stop of the active roll operating or revolving speed pass through
Yarn motor is sent to be controlled.
The downstream of the yarn-feeding roller wheel is equipped with yarn guiding ring.
It is described to send yarn motor using direct current generator.
Beneficial effect
First, the present invention can realize automatic yarn-feeding by yarn-feeding roller wheel traction yarn, while pass through line sending balance detection
Mechanism is measured in real time line sending amount, guarantees that line sending amount is within the scope of secure threshold and is knitted, so that the yarn in conveying
Line is in relative equilibrium, stable state, tight when pine when yarn being avoided to be in the presence of, is conducive to the matter for improving carpet surface knitting
Amount.
Second, the teasel root of each stock yarn line conveying can be detected respectively by piezoelectric type sense silk device, when there is yarn
Stop to remind operator that the processing of fault recovery machine run is discharged in time when conveying, fabric is avoided to lack yarn or machine sky
Turn, is conducive to improve production efficiency, improves product quality.
Third checks the tieing that delivered yarn whether there is by limiting holes in advance, leads when since tieing exists
When yarn being caused not continue to be fed forward, line sending balance detection mechanism is capable of detecting when that amount of thread reduction in downstream leads to exception, energy
It enough reminds operator that the processing of fault recovery machine run is discharged in time, avoids fabric from lacking yarn or machine idle running, be conducive to mention
High efficiency improves product quality.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is line sending balance detection of the present invention mechanism pulley motion position view.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
The automatic line sending of a kind of bayonet carpet flocking machine as shown in Figure 1 and testing agency, including four tubes 1, yarn-feeding rollers
Wheel 2 send yarn motor, piezoelectric type sense silk device 3, limitation ring 4, line sending balance detection mechanism 5 and alarm.
Yarn-feeding roller wheel 2 includes active roll 2-1 and driven roller 2-2, active roll 2-1 by sending yarn motor driven from each
Automatic traction yarn on tube 1, sending yarn motor is direct current generator.Piezoelectric type sense silk device 3, limitation ring 4 and line sending balance detector
Structure 5 is set in turn between tube 1 and yarn-feeding roller wheel 2, and the downstream of yarn-feeding roller wheel 2 is equipped with yarn guiding ring 6.
Piezoelectric type sense silk device 3 is felt in wire hole with there are four the sense wire hole passed through respectively for each stock yarn line equipped with piezoelectric sensing
Device, piezoelectric type sense silk device 3 are connect with alarm.Piezoelectric transducer can be excited piezoelectricity first with tracking measurement by yarn movement stress
The electric signal that part generates, and judge according to its situation of change the state of yarn, on specific operating position, piezoelectric transducer
Detector will carry out electronic analysis to all electric signals for detecting, to determine the state of spinning, there is detection to stablize, can
The advantages that leaning on, be accurate.When having yarn to pass through and yarn is when travelling forward, yarn is because moving stress at this time, at this moment voltage inductance
It answers device to can detecte electric signal, judges that current yarn line sending is normal；When yarn breaks or exhausts, piezoelectric inductor is detected not
To electric signal, judge that current yarn line sending is abnormal, and then issue alarm signal.The sense wire hole of the piezoelectric type sense silk device 3 is designed as
Four, the working quantity of sense wire hole can be specifically chosen according to the number of share of stock of yarn on actual station.
Line sending balance detection mechanism 5 guarantees that yarn is balanced stabilization for controlling the thread-feeding amount of delivered yarn
Ground conveying.The structure of line sending balance detection mechanism 5 includes but is not limited to three kinds following:
The first: is as shown in Fig. 2, line sending balance detection mechanism 5 includes pulley 5-1 and microswitch 5-2.Pulley 5-1 is set
It is placed between thread-feeding amount or more secure threshold, the upper end pulley 5-1 is connect with microswitch 5-2, and downside transmits yarn and with yarn
Elastic up and down motion.The start and stop of yarn motor are sent to be controlled by pulley 5-1 motion triggers microswitch 5-2, as pulley 5-1
When reaching high threshold, yarn electric motor starting is sent in microswitch 5-2 triggering, and yarn supply increases；Conversely, when pulley 5-1 arrival is low
When threshold value, microswitch 5-2 triggering send yarn motor to stall, and yarn supply is reduced, and moves in circles, so that thread-feeding amount control be existed
In certain range.
Second: line sending balance detection mechanism 5 includes pulley 5-1, high-order photoelectric sensor and low level photoelectric sensor.It is sliding
Wheel 5-1 is set between thread-feeding amount or more secure threshold, and high-order photoelectric sensor is set to secure threshold position, low level photoelectricity
Sensor is set to lower secure threshold position, transmission yarn and the elastic up and down motion with yarn on the downside of pulley 5-1.As pulley 5-
When 1 arrival high threshold, high-order photoelectric sensor detects signal, shows yarn insufficient supply, and yarn electric motor starting is sent in signal control,
Yarn supply increases；Conversely, low level photoelectric sensor detects signal when pulley 5-1 reaches Low threshold, show that yarn supplies
Surplus is answered, signal control send yarn motor to stall, and yarn supply is reduced, and moves in circles, to controlling thread-feeding amount certain
In range.
The third: line sending balance detection mechanism 5 includes pulley 5-1 and photoelectricity height sensor.Pulley 5-1, which is set to, send yarn
It measures between secure threshold up and down, photoelectricity height sensor is set on pulley 5-1, yarn is transmitted on the downside of pulley 5-1 and with yarn
Elastic up and down motion.It send the revolving speed of yarn motor to be controlled by the height that photoelectricity height sensor detects pulley 5-1, passes through
It detects the height of pulley 5-1 and is converted into voltage signal, the speed for sending yarn motor to operate is adjusted in voltage signal, to control
Line sending amount processed is in optimum range.
Line sending balance detection mechanism 5 is connected to alarm, can issue alarm signal when pulley 5-1 exceeds secure threshold
Number, warning reminding is generated to operator by alarm.
The aperture of limitation ring 4, which is slightly less than, knits rifle pin hole, and matches with the yarn thickness of closing up of number of share of stock yarn is needed, just only
Limit can cannot be all passed through by the amount of thread of number of share of stock required for woven carpet, the yarn cluster that any diameter is greater than limiting holes 4
Drilling 4.If diameter will be more than limiting holes 4 with the presence of connector in yarn cluster, when passing through limiting holes 4, yarn cluster and limitation
The friction in hole 4 is larger, but the yarn translator unit in downstream is still worked normally to driving front yarn, at this time the part pulley 5-1
Yarn pulling force just will increase, so that sliding exceeds upper secure threshold, prompt system of line sending balance detection mechanism 5 by pulley 5-1 pull-up
Existing in system yarn cluster cannot be by the connector of pinprick, and provides signal in time.
The automatic line sending of bayonet carpet flocking machine and testing agency realize yarn under the premise of guaranteeing line sending amount balance
Automatic line sending, and can be gone out with most fast velocity measuring yarn with the presence or absence of broken string, exhaust or the case where tieing, prompt operator
Debugging in time, restores the normal process process of machine, is conducive to improve processing quality and production efficiency.
Claims (10)
1. a kind of automatic line sending of bayonet carpet flocking machine and testing agency, including several tubes (1), it is characterised in that: further include
Yarn-feeding roller wheel (2) send yarn motor, piezoelectric type sense silk device (3), limitation ring (4), line sending balance detection mechanism (5) and alarm, institute
Yarn-feeding roller wheel (2) is stated by sending yarn motor driven from automatic traction yarn on several tubes (1), the piezoelectric type sense silk device (3),
Limitation ring (4) and line sending balance detection mechanism (5) are set in turn between tube (1) and yarn-feeding roller wheel (2), the piezoelectric type sense
Silk device (3) detects the teasel root of yarn transmission and connect with alarm, and the aperture of the limitation ring (4) is less than or equal to knit rifle pin hole,
The start and stop for sending yarn motor or revolving speed are controlled by the thread-feeding amount that line sending balance detection mechanism (5) detects yarn, institute
It states line sending balance detection mechanism (5) and is connected to alarm.
2. a kind of automatic line sending of bayonet carpet flocking machine according to claim 1 and testing agency, it is characterised in that: described
Line sending balance detection mechanism (5) includes pulley (5-1) and microswitch (5-2), and the pulley (5-1) is set to thread-feeding amount or more
Between secure threshold, the pulley upper end (5-1) connect with microswitch (5-2), downside transmission yarn and with the elastic of yarn
It moves up and down, the start and stop for sending yarn motor are controlled by pulley (5-1) motion triggers microswitch (5-2).
3. a kind of automatic line sending of bayonet carpet flocking machine according to claim 1 and testing agency, it is characterised in that: described
Line sending balance detection mechanism (5) includes pulley (5-1), high-order photoelectric sensor and low level photoelectric sensor, the pulley (5-1)
It is set between thread-feeding amount or more secure threshold, the high position photoelectric sensor is set to secure threshold position, the low level
Photoelectric sensor is set to lower secure threshold position, transmission yarn and the elastic fortune up and down with yarn on the downside of the pulley (5-1)
It is dynamic, the start and stop for sending yarn motor pass through the position of high-order photoelectric sensor and low level photoelectric sensor detection pulley (5-1) into
Row control.
4. a kind of automatic line sending of bayonet carpet flocking machine according to claim 1 and testing agency, it is characterised in that: described
Line sending balance detection mechanism (5) includes pulley (5-1) and photoelectricity height sensor, and the pulley (5-1) is set on thread-feeding amount
Between lower secure threshold, the photoelectricity height sensor is set on pulley (5-1), and yarn is transmitted on the downside of the pulley (5-1)
And with the elastic up and down motion of yarn, the revolving speed for sending yarn motor detects the height of pulley (5-1) by photoelectricity height sensor
Degree is controlled.
5. a kind of automatic line sending of the bayonet carpet flocking machine according to any one in claim 2-4 and testing agency,
Be characterized in that: line sending balance detection mechanism (5) will test signal and be sent to when the position of the pulley (5-1) exceeds secure threshold
Alarm triggering alarm.
6. a kind of automatic line sending of bayonet carpet flocking machine according to claim 1 and testing agency, it is characterised in that: described
Piezoelectric type sense silk device (3) has several sense wire holes passed through for yarn, is equipped with piezoelectric transducer in the sense wire hole.
7. a kind of automatic line sending of bayonet carpet flocking machine according to claim 1 and testing agency, it is characterised in that: described
The aperture of limitation ring (4), which is less than, knits rifle pin hole and matches with the yarn thickness of closing up of number of share of stock yarn is needed.
8. a kind of automatic line sending of bayonet carpet flocking machine according to claim 1 and testing agency, it is characterised in that: described
Yarn-feeding roller wheel (2) includes active roll (2-1) and driven roller (2-2), the start and stop or turn that the active roll (2-1) operates
Speed is by sending yarn motor to be controlled.
9. a kind of automatic line sending of bayonet carpet flocking machine according to claim 1 and testing agency, it is characterised in that: described
The downstream of yarn-feeding roller wheel (2) is equipped with yarn guiding ring (6).
10. a kind of automatic line sending of bayonet carpet flocking machine according to claim 1 and testing agency, it is characterised in that: institute
It states and send yarn motor using direct current generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136027.8A CN109322074A (en) | 2018-09-28 | 2018-09-28 | The automatic line sending of bayonet carpet flocking machine and testing agency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136027.8A CN109322074A (en) | 2018-09-28 | 2018-09-28 | The automatic line sending of bayonet carpet flocking machine and testing agency |
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| Publication Number | Publication Date |
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| CN109322074A true CN109322074A (en) | 2019-02-12 |
Family
ID=65265156
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| CN201811136027.8A Pending CN109322074A (en) | 2018-09-28 | 2018-09-28 | The automatic line sending of bayonet carpet flocking machine and testing agency |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409053A (en) * | 2019-08-30 | 2019-11-05 | 殷建和 | A kind of carpet knitting machine gun head |
| CN112575433A (en) * | 2019-09-28 | 2021-03-30 | 英凯模金属网有限公司 | Universal intelligent metal wire mesh loom for hanging beam and warp beam |
| CN114197127A (en) * | 2021-12-23 | 2022-03-18 | 佛山市启创科技发展有限公司 | Automatic line and knot detection device that receive of computer gun thorn carpet machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5118046A (en) * | 1987-03-11 | 1992-06-02 | Iro Ab | Apparatus for detecting a yarn movement |
| US20020175433A1 (en) * | 2001-05-25 | 2002-11-28 | Nicholas Day | Method and apparatus of producing a multifilament yarn from a thermoplastic polymer |
| US20090042593A1 (en) * | 2007-08-10 | 2009-02-12 | Qualcomm Incorporated | Adaptation of transmit power for neighboring nodes |
| CN104340761A (en) * | 2013-08-08 | 2015-02-11 | 大连奥特马工业有限公司 | Detection method for knotted part of open-and-close strip |
| CN204417766U (en) * | 2014-12-19 | 2015-06-24 | 苏州市吴中区郭巷旭宇羊毛衫加工场 | A kind of broken thread detector |
| CN205443642U (en) * | 2016-03-08 | 2016-08-10 | 陈维创 | Carpet machine send line detection device |
| CN207313899U (en) * | 2017-09-27 | 2018-05-04 | 天津市奥丰地毯有限公司 | A kind of bayonet carpet machine synchronous wire feeding device |
-
2018
- 2018-09-28 CN CN201811136027.8A patent/CN109322074A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5118046A (en) * | 1987-03-11 | 1992-06-02 | Iro Ab | Apparatus for detecting a yarn movement |
| US20020175433A1 (en) * | 2001-05-25 | 2002-11-28 | Nicholas Day | Method and apparatus of producing a multifilament yarn from a thermoplastic polymer |
| US20090042593A1 (en) * | 2007-08-10 | 2009-02-12 | Qualcomm Incorporated | Adaptation of transmit power for neighboring nodes |
| CN104340761A (en) * | 2013-08-08 | 2015-02-11 | 大连奥特马工业有限公司 | Detection method for knotted part of open-and-close strip |
| CN204417766U (en) * | 2014-12-19 | 2015-06-24 | 苏州市吴中区郭巷旭宇羊毛衫加工场 | A kind of broken thread detector |
| CN205443642U (en) * | 2016-03-08 | 2016-08-10 | 陈维创 | Carpet machine send line detection device |
| CN207313899U (en) * | 2017-09-27 | 2018-05-04 | 天津市奥丰地毯有限公司 | A kind of bayonet carpet machine synchronous wire feeding device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409053A (en) * | 2019-08-30 | 2019-11-05 | 殷建和 | A kind of carpet knitting machine gun head |
| CN112575433A (en) * | 2019-09-28 | 2021-03-30 | 英凯模金属网有限公司 | Universal intelligent metal wire mesh loom for hanging beam and warp beam |
| CN114197127A (en) * | 2021-12-23 | 2022-03-18 | 佛山市启创科技发展有限公司 | Automatic line and knot detection device that receive of computer gun thorn carpet machine |
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Application publication date: 20190212 |
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