CN109415851A - Weft yarn feeding arrangement with round and round band and the method for controlling the arrangement - Google Patents
Weft yarn feeding arrangement with round and round band and the method for controlling the arrangement Download PDFInfo
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- CN109415851A CN109415851A CN201780039919.3A CN201780039919A CN109415851A CN 109415851 A CN109415851 A CN 109415851A CN 201780039919 A CN201780039919 A CN 201780039919A CN 109415851 A CN109415851 A CN 109415851A
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- 238000000605 extraction Methods 0.000 claims abstract description 6
- 238000004590 computer program Methods 0.000 claims description 6
- 230000035611 feeding Effects 0.000 description 17
- 238000003780 insertion Methods 0.000 description 16
- 230000037431 insertion Effects 0.000 description 16
- 238000009941 weaving Methods 0.000 description 9
- 239000000284 extract Substances 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 239000004753 textile Substances 0.000 description 6
- 238000009954 braiding Methods 0.000 description 4
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- 230000015572 biosynthetic process Effects 0.000 description 2
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- 230000007423 decrease Effects 0.000 description 2
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- 229920000049 Carbon (fiber) Polymers 0.000 description 1
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
The present disclosure describes the method and apparatus for using yarn feed apparatus (16) that weft yarn is fed into loom (10), which includes at least one the round and round band (22) driven by controlled motor (24).Operation band respectively includes at least one yarn transmission element (26), and yarn transmits element (26) and is suitable for from middle extraction yarn (40) of yarn storage device (14) and in setting position release yarn to form one or more yarn coils as the yarn buffer of loom.There is also at least one yarn restriction element (30), it is suitable for yarn remaining coil.
Description
Technical field
This disclosure relates to a kind of feedings of yarn to arrange.Particularly, this disclosure relates to a kind of feedings of weft yarn to arrange,
It is suitable for the looms of high speed operation, and are potentially also possible to the yarn for having relative high weight using every length cell.
Background technique
Weft yarn pre-wound machine is for eliminating yarn tension variation, to ensure the high quality of textile products and production of textile machinery
Rate, textile machinery are, for example, shuttleless loom or knitting machine.
Woven General development trend is that the speed of textile machinery is continuously increased.At the same time, it is thicker to make great efforts braiding by weaver
Rough yarn and weaker yarn.Rougher yarn and higher speed cause the tension of weft yarn to increase.Use traditional latitude
Yarn pre-wound machine, increased speed and rougher yarn lead to the biggish extraction yarn ball in weft yarn pre-wound machine,
It needs to reduce using high brake force, but unfortunately leads to undesirable high output yarn tension.
For example, thick jute is typically used as weft yarn when carpet woven.Ball braking member in traditional weft yarn prewinder
Usually brush ring or flexible frustoconical at braking member.Under the machine speed of today, brush ring is usually in short one day
Abrasion, and flexible frustoconical braking member can be worn within some months.
Another example is with coarse synthetic threads knitting skill fabric；Wherein people face and carpet textile machinery phase
Same problem.
In addition, the insertion apparatus in rapier loom is by one or two when using the shuttleless loom of rapier loom form
Rigidity or flexible rapier composition, are mechanically transmitted to the other end from one end of machine shed open for weft yarn.The most common system is
Two arrow shafts, they meet among shed open, and weft yarn front end is transferred to second reception arrow shaft from first feeding arrow shaft.First
Arrow shaft accelerates at full speed from zero first, and then in front end, branchpoint decelerates to zero again.Such movement is similar to second
The movement of arrow shaft.It is low that this causes weft tension to return from low to high.In fact, the quality in weft yarn makes when arrow shaft is slowed down
It is moved more quickly than than arrow shaft itself, and yarn is caused to overflow.This effect with yarn count, i.e., every length unit yarn weight and increase
Add, and this effect is the real problem of rove and fast machine.In order to solve this problem, it is passive or controlled to be used
The Yarn Brake of system.
If improving machine speed, the mechanical device of arrow shaft mechanism must be made to as light as possible.On the other hand, higher
Speed lead to higher yarn tension, this needs more rigid and stronger rapier system.
Weaker yarn is cheaper and therefore attractive in use.Weaker yarn has lesser stretch by force
Degree, and if applying excessively high brake force provides enough tension to control ball, or for arrow shaft function, then yarn breakage
Risk increases sharply.GB1355687 describes a kind of yarn feeder, wherein the component for being directly connected to loom move back and forth with
Yarn is consistently removed from the movement of yarn package with arrow shaft with during return movement forward in arrow shaft.Yarn is from yarn as a result,
The speed pulled out in coil of wire dress can be reduced to half.This arrangement will form yarn buffer.In general, yarn buffer
A kind of arrangement will be provided, the yarn that lesser power can be used to extract out can be kept during at least part weaving cycle, it should be compared with
If small power is smaller compared with directly extracting yarn out required power from yarn storage device.GB2131055 also illustrates one kind
Weft yarn measuring equipment.
People, which wish to improve to textile machinery always, feeds weft yarn.Therefore, it is necessary to a kind of improved weft yarn feed apparatus.
Summary of the invention
It is an object of the present invention to provide a kind of improved weft yarn feeders to arrange.
The purpose and/or other purposes are obtained by the weft yarn feed apparatus as described in appended claims.
As has been recognized like that, it reduces yarn and is retracted to loom from yarn storage device (such as spool or pre-wound machine)
Speed will be advantageous.When increasing the speed of loom, especially when using with the relatively high weight of every length unit
When rougher yarn (such as jute, some synthetic threads or carbon fiber), power needed for this will reduce reply.It is another to need
It is fed in providing the weft yarn for reducing yarn tension.
Although moreover, equipment described in GB1355687 allow from yarn feeder extract out yarn speed reduce,
It has the shortcomings that limitation and.Firstly, the equipment of GB1355687 has limitation, that is, slowing down, be only capable of cannot be more for 50%.
In addition, component is directly connected to loom and moves back and forth with the movement with arrow shaft during the movement that moves forward and backward of arrow shaft
The fact that consistently remove yarn from yarn package makes it impossible to when arrow shaft is not moved (such as during beating) from yarn
Extract yarn in memory out.In other words, it in GB1355687, could only be taken out from yarn storage device when arrow shaft is mobile
Yarn out.Therefore, the available most of the time is not used in from yarn storage device and extracts yarn out during weaving cycle.This be because
For during a big chunk of weaving cycle, arrow shaft is not moved usually.Secondly, the equipment is consistently moved with arrow shaft.This leads
The speed for causing yarn to extract out from weft yarn feeder is directly proportional to the speed of arrow shaft, therefore significantly becomes during the circulation of rapier loom
Change.Due to the driver for the arrow shaft being mechanically coupled in loom, which limits with the fact that arrow shaft is consistently moved
Function, because can not be by improving function using other suitable times in the loom period, more to balance speed
Other movements in degree and/or compensation loom.Third, the equipment need the wire loop guided along track, apply additionally
Frictional force and moving component, this may be unfavorable in some applications.
According to one embodiment, provide a kind of for weft yarn to be fed into the yarn feed apparatus of loom.Loom is especially
It can be the loom including at least one arrow shaft.Loom is also possible to air-jet loom or water-jet loom.Yarn feed apparatus includes
At least one operation endless belt driven by controlled motor.Operation band respectively includes at least one yarn transmission element.Yarn passes
Element is sent to be suitable for extracting out yarn from yarn storage device and in setting position release yarn to form one or more yarn rings,
Yarn buffer as loom.It thus provides a kind of effective yarn feed apparatus, can be mentioned with low-tension to loom
For yarn, while significantly reducing the maximum yarn take-off speed that yarn is taken out from yarn storage device.In addition, at least one yarn is arranged
Line restriction element is to remain ring for yarn.Yarn may remain in position appropriate as a result, this can promote the shape of yarn ring
At.At least one described yarn restriction element can be fixture, brush or surface, which, which has, is located at the surface simultaneously
And the element for corresponding to and being at least at a distance from yarn thickness is spaced apart with the surface.
According to one embodiment, yarn feed apparatus suitably forms two rings.Being formed by yarn buffer as a result, can be with
Suitable for being fed into two-sided rapier loom in an efficient way.According to one embodiment, yarn feed apparatus is suitably connected to double swords
Bar loom, and one wherein in described two rings is associated with the movement of the first arrow shaft, and another in described two rings
One associated with the movement of the second arrow shaft.
According to one embodiment, yarn feed apparatus is suitably connected to multichannel loom.It is possible thereby to can be realized
From the device of the low-down maximum take-off speed of yarn storage device.
According to one embodiment, yarn is transmitted components set and is moved at the maximum speed for being less than the half of arrow shaft maximum speed
It is dynamic.
According to one embodiment, it is pin that yarn, which transmits element,.
According to one embodiment, yarn storage device includes prewinder, and yarn feed apparatus is suitable for from pre-wound machine
Extract yarn out.
According to one embodiment, yarn storage device is spool, and yarn feed apparatus is suitable for directly extracting yarn out from spool
Line.
According to one embodiment, a kind of yarn feeding arrangement, including yarn storage device, according to the yarn of any of the above-described embodiment
Line feed apparatus and loom at least one arrow shaft.
According to one embodiment, yarn feeding arrangement further includes interconnecting between yarn storage device and yarn feed apparatus
Sliding feed equipment.It is possible thereby to provide improved yarn feeding.
According to one embodiment, a kind of yarn feeding arrangement, including yarn storage device, according to the yarn of any of the above-described embodiment
Line feed apparatus, and the loom at least one arrow shaft is provided.Loom is that multichannel loom and loom are suitable for each
Switching channel after loom is throwed a spear.It is possible thereby to increase the time to form ring.According to one embodiment, yarn feed apparatus is configured to
The one or more rings for being used for channel are at least partly formed during the time of another channel-active in loom.Especially
Ground, yarn feed apparatus can be configured to form ring during first time interval, and its middle ring is in the second time interval phase
Between consumed by loom, and wherein the duration of first time interval is at least the two of the duration of the second time interval
Times.
The present invention also extends to for controlling according to the method for the weft yarn of above content feeding arrangement and for controlling root
According to the controller and computer program product of above content.
Due to the high taking-up tension from traditional pre-wound machine, the speed of air-jet loom or water-jet loom is also restrained.
The pre-wound machine of spraying machine is constructed in basic principle identical with the pre-wound machine of rapier loom, is increased for measuring
And the system for providing predetermined length of throwing a spear.Length of throwing a spear usually passes through the diameter for adjusting roller, and general in arrow shaft pre-wound machine
Yarn release is added in thought and stops element (commonly referred to as stopper magnet) Lai Shixian.By the diameter and fixed number that set roller
The winding of amount realizes scheduled length of throwing a spear to leave roller.
Therefore, air-jet loom can also be used for by the buffer gear that weft yarn feed apparatus as described herein is formed or water spray is knitted
Machine.Then weft yarn feed apparatus is placed on to the downstream of injecting type pre-wound machine, then injecting type pre-wound machine be suitable for will be correct
Length of throwing a spear be output to jet weaving machine.
Detailed description of the invention
By way of non-limiting example and the present invention will be described in greater detail with reference to the attached drawings now, in which:
- Fig. 1 is to show to have there are two the view of the weft yarn in channel feeding arrangement,
- Fig. 2 a- Fig. 2 d depicts the different aspect of weft yarn feed apparatus,
- Fig. 3 depicts another layout,
- Fig. 4 depicts the weft yarn feeding arrangement by controller control,
- Fig. 5 is the flow chart for showing the different step executed when forming weft yarn buffer,
- Fig. 6 is the view of controller,
- Fig. 7 depicts sliding feed equipment,
- Fig. 8 depicts the feeding arrangement of the weft yarn with sliding feed equipment, and
- Fig. 9 shows the various aspects of the different timings and speed of yarn feeding arrangement.
Specific embodiment
Hereinafter, description is used for the weft yarn feeding arrangement of rapier loom.In the accompanying drawings, identical appended drawing reference is each
Identical or corresponding element is indicated in a attached drawing.It should be appreciated that these attached drawings are merely to illustrate without limiting this in any way
The range of invention.Furthermore, it is possible to combine the feature of the embodiment from different descriptions to meet specific realization demand.
When loom is run under weft yarn mixed mode, yarn is fed from different yarn storage devices, and loom switches
Yarn storage device, so that yarn of throwing a spear between throwing a spear every time is (that is, machine is transported with the mode of the switching channel between throwing a spear every time
Row), in the time from another weft yarn memory extraction weft yarn plus two beating events, in addition can be used for loading yarn buffering
Up to about the 1 of device1/2At least there is a time interval in the time in loom period.Weft yarn mixing can be at 2 or more
It is run on channel, usually from 2 channels to up to 4 channels.Cause two continuously to throw a spear never to be inserted into from same channels
Other Weaving patterns be also possible.In all of these situations, the result is that when another channel insertion when time slot,
Therefore at least about 11/2The time in loom period can be used for loading yarn buffer.
In figure 1 it is depicted that exemplary setting.Setting in Fig. 1 depicts multichannel rapier loom 10.Loom 10 is tool
There are two the two-sided rapier looms of arrow shaft 11 and 12.Loom in Fig. 1 uses two channels, it is contemplated however that having any quantity
Channel multichannel rapier loom 10.Each channel is fed by the weft yarn in weft yarn memory.In Fig. 1, each weft yarn
Memory includes pre-wound machine 14.Pre-wound machine 14 can extract yarn out from spool 13 again.It corresponding weft yarn memory and knits
Interconnection between machine 10 is weft yarn feed apparatus 16.Weft yarn feed apparatus 16 is described in more detail below.
Using two-sided rapier loom, weft yarn feed apparatus 16, which may be adapted to be formed, is divided into two different coils
Weft yarn buffer.In figure 1 it is depicted that yarn feed apparatus forms tool, there are two the weft yarn buffers of coil.In two-sided sword
In bar loom, each half insertion uses a coil of weft yarn.Each weft yarn buffer may include one or more weft yarn coils.
In forming the construction there are two weft yarn coil, motor can drive two bands, wherein each band suitably forms a weft threads
Circle.In one embodiment, tape speed and there are also motor speed be preferably continuous.Continuous tape speed can be controlled
The take-off speed from yarn storage device is reduced to low speed, but it is sufficiently high to form weft threads before loom is using it
Circle.Band has the yarn transmission element being attached to thereon, such as sells, and weft yarn is made to form coil.When the suitable length for reaching coil
When spending, pin can enter inclined inclined-plane, such as plate or line, or the like, and sell and continue in the case where no yarn,
The position for initially forming new weft yarn coil is eventually arrived at, for using later, there are two the weft yarn periods here after.Work as yarn
When releasing from pin, it is pushed into the fixture formed by inclined ramp simultaneously, such as leaf spring.Yarn is maintained at dedicated by the fixture
Yarn is pulled out fixture when arrow shaft is in insertion beginning, or pulls out the second coil after the transfer of weft yarn top by position.
It is contemplated that being used to form the different settings of the yarn buffer made of one or more yarn coils.According to one
Embodiment provides dedicated motor for each operation band.It controls the speed of motor and is taken out from buffer with the arrow shaft for meeting in loom
Form the requirement of weft yarn coil before yarn in time out.At the same time it is advantageous that weft yarn is deposited with low maximum take-off speed from yarn
It is extracted out in reservoir.It is therefore advantageous that control motor works asynchronously with loom, so that motor will be at a substantially constant speed and sufficient
Enough high speed driving operation bands, so that just before being throwed a spear by the arrow shaft of loom and forming the time of the yarn of coil, yarn
The coil of line buffer can be ready to.
The speed of the motor of adjustable driving operation band.Adjust driving operation band motor speed the reason of may be
Certain other parameters the time required to the velocity variations of loom either influence to form yarn coil are changing.
Due to the motor driver for running belt can be it is electronically controlled, it can pass through electronics setting and loom
It is synchronous.For example, yarn transmission element and weft yarn can be optimized by the electronic settings at the junction relative to weaving cy-cle angle
It engages and starts the time for pulling out weft yarn from yarn storage device.It, can be during loom be run since setting is electronics
It adjusts it and does not stop braiding process.
By providing programmable motor driver, different parameters can be set with electronics, with adapt to weave on loom
Practical pattern/pattern and practical loom are arranged.When loom is static but also during operation when, if for example changed during operation
If machine speed or during operation change other parameters, this can usually be carried out when pattern changes.Driving band and its
The motor of controller is unrelated with loom, i.e., does not couple with loom, so as to the automatic moving freely from loom and freely
Velocity mode is set.Therefore, yarn feed apparatus can be controlled independently of any motor in loom, but still can be with
It is controlled by receiving the signal from loom to consider the different event for weaving process in loom, which can be used for controlling
The motor of yarn feed apparatus processed.
The length of adjustable coil is pulled the weft length of braiding shed open to be suitble to cloth width by arrow shaft.According to
The property of the weft yarn used under specific circumstances and several loom relevant parameters, best coil length can be in different settings
Between it is different.According to one embodiment, the length of the second coil can be shorter than the length for the yarn that arrow shaft pulls in.It is inserted into as a result,
Decline extraction from the weft yarn memory (such as pre-wound machine), yarn tension with higher, this causes yarn to arrive
It reaches and is stretched before static.This behavior is for preventing chaotic and other wefts insertion problem to be advantageous.At another
In exemplary embodiment, the length of the yarn slightly longer than pulled in by arrow shaft can be made in the weft yarn coil that one or more is formed,
To ensure the alap weft tension in entire insertion process.
The length of buffer coil can be controlled by machinery setting, and machinery setting is thrown for setting yarn transmission element
Shuttle yarn simultaneously initially forms the position of coil and the position of yarn transmission element release yarn, no longer exists yarn and deposits from yarn
The position extracted out in reservoir.Releasing position is set by relieving mechanism, such as the inclined surface of operation end of tape.Inclined surface will compel
Make yarn from yarn transmission element (such as pin) release.The position that yarn is throwed a spear and/or discharged can be manually set or by controlling
The actuator of position processed controls.It is possible thereby to adjust the shape and length of yarn coil.Yarn relieving mechanism can also be by means of causing
Dynamic device is electronically made, which is suitable for pushing weft yarn from yarn transmission element.According to some exemplary embodiments, work as use
When actuator or motor, coil length can be changed during loom is run, without stopping loom.
Since yarn transmission element needs to throw a spear position before initially forming new coil back to yarn, operation
Control at least to a certain extent is formed the speed of coil by the length of band.
As described above, operation band can driving synchronous with loom.By before loom is run or operation during provide with
Related control parameter is arranged in loom, can obtain synchronization.The controller with control input signal can be used and use is provided
It is synchronized in control output signal of the driving with motor.For example, be used as control parameter setup parameter may include throw a spear length,
One or more of loom speed, current loom angle, weave pattern/pattern.When arrow shaft using instruction loom starts
The signal moved in the control for driving the motor of operation band is stopped at respectively to be also advantageous.
In addition, controlled Yarn Brake can be placed between first coil and loom, first coil is followed in loom
The first coil used during insertion in ring.Controlled Yarn Brake can be activated before yarn front end is transmitted, with
Just yarn is braked, to reach the yarn tension needed for safe yarn front end is transmitted.
The exemplary configuration for illustrating some above-mentioned introductions is shown in Fig. 2 a- Fig. 2 d.In fig. 2 a, it shows including yarn
One channel of the multichannel loom of line feeding arrangement.The setting corresponds to setting shown in FIG. 1.In fig. 2 a, yarn into
To equipment 16, controlled Yarn Brake 20 is set later.In the case where forming two yarn coils, the second controlled weft system
Dynamic device 18 can be placed between two yarn coil buffer areas.It fills out when first coil is filled with yarn 40 and in the second coil
Before yarn 40, the second controlled weft brake 18 can star.It is possible thereby to yarn feed apparatus 16 is controlled, so that the
Two coil is from pre-wound machine 14 rather than the first coil filled up takes out yarn 40.It also ensure that when the first arrow shaft is inserted into yarn
When line, from first coil buffer rather than yarn is taken out from the second coil buffer device.Yarn Brake 18 can be in front end
It is deactivated when transmission, therefore the yarn during the movement of the second arrow shaft can also take out from the buffer with low-tension.
In figure 2b, yarn feed apparatus 16 is seen from the side.Yarn feed apparatus includes the operation driven by motor 24
Band 22.
In figure 2 c, the details of Fig. 2 b is depicted, it illustrates the exemplary embodiments of relieving mechanism.In figure 2 c, yarn
Line 40 is throwed a spear by yarn transmission element 26 (such as pin).In the end of operation band 22, inclined surface 28 is set.When yarn passes
Send element 26 reach inclined surface 28 when, by yarn throw a spear component transmission yarn be forced from yarn transmit element 26 discharge.Yarn
Line is held in place by yarn restriction element 30.Yarn restriction element 30 is fixture 30 herein.
In figure 2d, the details A of Fig. 2 a is shown.Details A is the release part of the operation band 22 of yarn feed apparatus 16.
In figure 2d, the yarn transmission element 26 formed here by two pins 26 discharges yarn 40 in the yarn releasing position of setting.Yarn
Line is held in place by yarn restriction element 30.Yarn restriction element 30 is fixture 30 herein.
It is contemplated that different yarn restriction elements.For example, the yarn in coil buffer device, which can rest on, to be had at least
Between two plates of the distance of one yarn thickness.Then yarn is free, and does not need additional power for yarn from folder
It is pulled out in tool.Two plates prevent yarn distortion or chaotic.
By providing the different settings of yarn feed apparatus, thread path can be adjusted as the case may be.?
In Fig. 3, substitution setting is depicted.In Fig. 3, operation band is configured in the direction direction that is substantially parallel with weft yarn insertion loom
Upper operation, with the construction in Fig. 2 on the contrary, wherein operation band is transported on the direction substantially vertical with the direction of weft yarn insertion loom
Row.
In fig. 4 it is shown that including the setting of controller 32.Controller 32 may be coupled to yarn feed apparatus 16 and
Suitable for controlling yarn feed apparatus 16.As set forth above, it is possible to using the controller with control input signal and provide for driving
The control output signal of the motor of yarn feed apparatus 16 is moved to obtain synchronization.Other driving setting examples of yarn feed apparatus 16
As coil length can also be carried out by controller 32.
Flow chart is shown in FIG. 5, the flow diagrams illustrate when control is for driving yarn as described herein to feed
The some steps that can be executed when the motor of arrangement.Yarn feeding arrangement will form yarn coil buffer.Firstly, in step
In 501, the control parameter for driving operation band is determined.Control parameter can be any parameter as described herein, and even if
It can also be with undated parameter under the drive mode of operation band.Confirmable parameter may include throw a spear length, loom speed, when
Preceding loom angle, weave pattern/pattern, strip length, position of the yarn transmission element relative to loom position taken, machine for releasing
One or more of structure position and timing.It is also advantageous when the arrow shaft of loom starts to stop mobile respectively using signal.
Then the value of these parameters can be used.Next, in step 503, driving speed based on parameter value setting motor and with
The synchronization of loom.Motor can be run at a substantially constant speed.Then, in optional step 505, by yarn feed apparatus shape
At the length of coil set by controller 32.Then, in step 507, motor 24 is controlled into setting speed and is executed
It is synchronous with loom.If one or more control parameters change, the speed of setting and/or synchronize can be in the driving of motor 24
Period variation.
In Fig. 6, the controller 32 for controlling yarn feed apparatus is depicted.Controller 32 may include input/output
81, it is set for receiving the input signal of the angle braiding circulation position of expression loom and for controlling yarn feeding as described above
Standby other parameters.Input/output 81 exports motor control signal to motor 24, to control the speed of motor 24.Input/output
81 can also export control signal, to adjust other settings of yarn feed apparatus, such as run the length of band and are described herein
Other setting.Controller 32 further includes microprocessor, which may also be referred to as processing unit 82.Processing unit 82 connects
It is connected to memory 83 and the computer program instructions being stored in memory 83 can be executed.Memory 83 can also store energy
Enough data accessed by processing unit 82.Data in memory may include pre-stored data related with loom 10.
Computer program instructions may be adapted to make the yarn feed apparatus including motor of controller control according to the teaching of this article.Control
Device can be located at any suitable location.For example, controller can integrate in motor 24.Controller can be used any suitable
Device inputoutput data, wireless and wire communication facility can be used.
In another exemplary embodiment, it is added to sliding feed equipment.Sliding feed equipment is driven voller, with
The rotation of (continuous) peripheral speed, the peripheral speed are higher than required yarn speed.This set is described in US 5660213
It is standby.When yarn feed apparatus pulls yarn when constructing coil buffer device, yarn will be pulled against roller, yarn and rotating roller
Between friction will be helpful to further pull on yarn, to reduce yarn tension.Once the speed that roller gives yarn is more than yarn
The speed of line feed apparatus consumption, yarn will reduce the power of roller, therefore pulling force can also reduce, until reaching balance and roller
Any further power of yarn will not be given to.Fig. 7 depicts exemplary slide feed apparatus 38 with two different views.
In fig. 8, it depicts and is set with the sliding feed interconnected between yarn storage device 14 and yarn feed apparatus 16
Standby 38 setting.
In Fig. 9, depict that there are two the looms 10 of arrow shaft including yarn storage device 14, yarn feed apparatus 16 and tool
The filling speed at different location in arrangement.In Fig. 9, using two alternate channels, first passage and second channel.It should
Figure depicts two weaving cy-cles, is twice of 360 degree.Here in greater detail for two arrow shafts of first passage
Movement is shown by curve 51.When the first (providing) arrow shaft be first passage throw a spear weft yarn when, insertion start be located at position 57 and
Insertion terminates to be located at position 58.Curve 50 refers to second in two alternate channels.It can be used to form yarn buffer
Time (being in this example two coils) be 58 (at the end of insertions) and 57 (when the insertion next time for first passage
When beginning) between time.First buffer is being inserted into closest to the first buffer of loom (meaning that first provides arrow shaft)
Start to fill after terminating 58, and can usually continue until use approximately half of pot life.This is shown by curve 52
Out.Second buffer (for the second reception arrow shaft) can start to fill and be continued until after the first buffer is ready
Before first arrow shaft circulation terminates, i.e., before the transmitting of weft yarn front end.The filling of second buffer is shown by curve 53, and yarn
Line front end is delivered at transmitting position 59 and carries out.
According to the type of loom, different timing sequences will be used.For example, being used in air-jet loom or water-jet loom
Compressed air or pressure (hydraulic) water insert weft into the shed open of loom by being blown into the nozzle of yarn.Then, when insertion is ready simultaneously
And stopper magnet stopping can initially form yarn buffer when yarn is transported to loom.First element is starting yarn
Brake 20, then the stopper magnet of injecting type prewinder is opened, and the formation of weft yarn buffer can pass through coil shape
At element 26 since pre-wound machine extracts yarn out.The formation of weft yarn buffer continues, and another channel is inserted into
Yarn, and must be ready before being inserted into the channel and starting.When being inserted into beginning, release brake 20 is released simultaneously
Weft yarn is blown into jet weaving machine.In one embodiment, length of completely throwing a spear can store by yarn feed apparatus shape
At weft yarn buffer in.In another embodiment, the decline throwed a spear is derived from pre-wound machine.
The speed of the weft yarn taken out from yarn storage device is indicated by curve 54.As can be seen that filling two buffers
Period, the speed of most of the time are constant, and when not having to fill buffer area, receive arrow shaft insertion by second in weft yarn
Period, speed drop to zero.Maximum speed 60 of the filling speed from yarn storage device far below the arrow shaft in curve 51.It is logical
Often, it can be only the 25% to 35% of maximum speed.
The power of controlled weft brake 20 is shown by curve 55.In addition, the power from controlled weft brake 18 is by curve
56 show.Controlled weft brake 20 is activated to provide high Yarn braking power during the filling of the first buffer, here by song
Line 52 indicates, is taken out from loom with ensuring weft yarn 40 from yarn storage device.Controlled weft brake 20 can also be used in
Weft tension is controlled, so that weft yarn insertion is as expectantly worked.Controlled weft brake 18 is starting the second buffering of filling
It is activated before device, is identified here by curve 53.This is done to ensure that weft yarns 40 from yarn storage device rather than from first
It is taken out in buffer.
There are many benefits for yarn feed apparatus as described herein.Such as:
Yarn tension in loom is very low.
Yarn speed from pre-wound machine is very low, therefore does not have expansion issues.
Yarn speed from spool reduces
The motor for forming buffer can be with continuous operation, therefore motor can consume seldom energy with very little and only.
A buffer operation can be only used.However, when speed slows down during the transmission of front end, mobile from buffer
Yarn will also slow down, but inertia mass will lead to the irregular behavior of yarn, this may cause problem, without by
Controlled weft brake is suitably handled, then the phenomenon may result in yarn tension rapid drawdown and rise sharply, this may cause loom
Stop or other weave problems.
The length for forming the operation band of coil combines it to pull the starting point (synchronous with loom) of the distance of yarn and pulling
In addition speed (synchronous with loom) determines when coil length and coil are formed.By the way that these parameters are arranged, the result is that coming from
The yarn speed curve of yarn storage device and the available optimization of controlled weft speed coil buffer.
Claims (20)
1. weft yarn is for being fed into the yarn feed apparatus (16) of loom (10) by one kind, the yarn feed apparatus include by by
Up at least one operation endless belt (22) of (24) driving, each operation band includes that at least one yarn transmits element for horse-controlling
(26), one or more yarn transmission elements are suitable for extraction yarn (40) from yarn storage device (13,14) and are setting
Position discharges the yarn to form one or more yarn coils as the yarn buffer for being used for the loom, the yarn
Feed apparatus further includes at least one yarn restriction element (30), is suitable for yarn (40) remaining coil.
2. yarn feed apparatus according to claim 1, which is characterized in that at least one described yarn restriction element is folder
Have (30).
3. yarn feed apparatus according to claim 1, which is characterized in that at least one described yarn restriction element is brush
Son.
4. yarn feed apparatus according to claim 1, which is characterized in that at least one described yarn restriction element is table
Face, the surface have positioned at the surface and separate with the surface at least corresponding with the thickness of the yarn
The element of distance.
5. yarn feed apparatus according to any one of claim 1 to 4, which is characterized in that the loom includes at least
One arrow shaft (11,12).
6. yarn feed apparatus according to claim 5, which is characterized in that the yarn feed apparatus suitably forms two
Coil.
7. yarn feed apparatus according to claim 6, which is characterized in that the yarn feed apparatus is suitably connected to double
Rapier loom, and wherein one in described two coils and the movement of the first arrow shaft (11) are associated and described two
Another in ring is associated with the movement of the second arrow shaft (12).
8. yarn feed apparatus according to any one of claim 1 to 7, which is characterized in that the yarn feed apparatus
It is suitably connected to multichannel loom.
9. yarn feed apparatus according to any one of claims 5 to 7, which is characterized in that the yarn transmits element
It is mobile with the maximum speed for being less than the half of arrow shaft maximum speed.
10. yarn feed apparatus according to any one of claim 1 to 9, which is characterized in that the yarn transmits element
It is pin (26).
11. yarn feed apparatus according to any one of claim 1 to 10, which is characterized in that the yarn storage device
It is suitable for extracting yarn out from the prewinder including prewinder (14) and the yarn feed apparatus.
12. yarn feed apparatus according to any one of claim 1 to 10, which is characterized in that the yarn storage device
It is that spool (13) and the yarn feed apparatus are suitable for directly extracting yarn out from the spool.
13. a kind of yarn feeding arrangement, including yarn storage device (13,14), according to claim 1 described in any one of -12
Yarn feed apparatus (16) and loom (10).
14. yarn feeding arrangement according to claim 13, further includes in the yarn storage device (13,14) and the yarn
The sliding feed equipment (38) interconnected between line feed apparatus (16).
15. a kind of yarn feeding arrangement, including it is yarn storage device (13,14), according to any one of claim 1 to 12
Yarn feed apparatus (16) and loom (10), which is characterized in that the loom is that multichannel loom and the loom are suitable for
The loom every time throw a spear after switching channel.
16. yarn feeding arrangement according to claim 15, which is characterized in that the yarn feed apparatus is configured in institute
It is at least partially formed during stating another channel-active in loom for a coil in a channel or multiple coils.
17. yarn feeding arrangement according to claim 15 or 16, which is characterized in that the yarn feed apparatus is configured to
Coil is formed during first time interval, and wherein the coil is consumed during the second time interval by the loom,
And wherein the duration of the first time interval is at least twice of the duration of second time interval.
18. a kind of method of control for weft yarn to be fed into the driver of the yarn feed apparatus (16) of loom (10), described
Yarn feed apparatus includes at least one operation endless belt (22) by controlled motor (24) driving, and the operation band respectively includes
At least one yarn transmits element (26), and one or more yarn transmission elements are suitable for the extraction from yarn storage device (14)
Yarn (40) is simultaneously knitted in the setting position release yarn with forming a yarn coil or multiple yarn coils for use as described
The yarn buffer of machine, which is characterized in that at least one yarn restriction element (30) is set so that the yarn (40) to be kept into
Coil, which comprises
Determine that (501) are used to drive the control parameter value of operation band；
The driving speed of (503) described motor is set to work asynchronously with the loom, so that the motor will be with substantially constant
Speed drive the operation band, and
Setting speed is arrived into the motor (24) control (507).
19. according to the method for claim 18, which is characterized in that when changing the control parameter, reset the setting
Speed.
20. a kind of computer program product, including computer program code, when executing on computers, the computer program generation
Code is suitable for the driver for making computer with the control yarn feed apparatus of method described according to claim 18 or 19.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1650987 | 2016-07-06 | ||
| SE1650987-9 | 2016-07-06 | ||
| PCT/SE2017/050669 WO2018009120A1 (en) | 2016-07-06 | 2017-06-20 | Weft yarn feeding arrangement with endless running belt and a method for controlling the arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109415851A true CN109415851A (en) | 2019-03-01 |
| CN109415851B CN109415851B (en) | 2021-07-09 |
Family
ID=60912267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780039919.3A Active CN109415851B (en) | 2016-07-06 | 2017-06-20 | Weft feeding arrangement with endless running belt and method for controlling the same |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3481980B1 (en) |
| CN (1) | CN109415851B (en) |
| WO (1) | WO2018009120A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2131055A (en) * | 1982-11-27 | 1984-06-13 | Bonas Machine Co | Weft yarn metering apparatus |
| EP0738796A1 (en) * | 1995-04-21 | 1996-10-23 | Brintons Limited | Yarn supply |
| US5660213A (en) * | 1993-07-19 | 1997-08-26 | Iro Ab | Weft yarn insertion system having deactivatable slip conveyor and associated yarn brake |
| CN1226943A (en) * | 1996-07-31 | 1999-08-25 | 诺瓦·罗伊电子公司 | Method to control weft yarn insertion in loom |
| WO2000068478A1 (en) * | 1999-05-07 | 2000-11-16 | Ppg Industries Ohio, Inc. | Air jet loom accumulator |
| DE10203733A1 (en) * | 2001-02-16 | 2002-08-22 | Texo Ab Aelmhult | Arrangement for linear measurement and magazine storage of thread in looms or textile machines, comprises thread feed elements, thread length-measuring elements, magazines, reversing elements, and thread support elements |
| CN104471130A (en) * | 2012-07-11 | 2015-03-25 | 林道尔·多尼尔有限责任公司 | Device for the intermediate storage of band-like weft material for a weaving machine and weaving machine having such a device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3938561A (en) * | 1971-04-10 | 1976-02-17 | Walter Scheffel | Device for drawing off weft thread |
| GB1355687A (en) | 1971-07-22 | 1974-06-05 | Tomkinsons Ltd | Yarn feeding device for looms |
| NL7508359A (en) * | 1975-07-13 | 1977-01-17 | Rueti Te Strake Bv | Yarn feeder to buffer store for weft insertion - has smooth relatively inclined rollers driven by common disc |
| DE2952094A1 (en) * | 1979-12-22 | 1981-07-02 | Becker, Hubert | Shuttleless loom weft supply - has housing to draw in and hold measured length |
-
2017
- 2017-06-20 WO PCT/SE2017/050669 patent/WO2018009120A1/en unknown
- 2017-06-20 EP EP17824625.2A patent/EP3481980B1/en active Active
- 2017-06-20 CN CN201780039919.3A patent/CN109415851B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2131055A (en) * | 1982-11-27 | 1984-06-13 | Bonas Machine Co | Weft yarn metering apparatus |
| US5660213A (en) * | 1993-07-19 | 1997-08-26 | Iro Ab | Weft yarn insertion system having deactivatable slip conveyor and associated yarn brake |
| EP0738796A1 (en) * | 1995-04-21 | 1996-10-23 | Brintons Limited | Yarn supply |
| CN1226943A (en) * | 1996-07-31 | 1999-08-25 | 诺瓦·罗伊电子公司 | Method to control weft yarn insertion in loom |
| WO2000068478A1 (en) * | 1999-05-07 | 2000-11-16 | Ppg Industries Ohio, Inc. | Air jet loom accumulator |
| DE10203733A1 (en) * | 2001-02-16 | 2002-08-22 | Texo Ab Aelmhult | Arrangement for linear measurement and magazine storage of thread in looms or textile machines, comprises thread feed elements, thread length-measuring elements, magazines, reversing elements, and thread support elements |
| CN104471130A (en) * | 2012-07-11 | 2015-03-25 | 林道尔·多尼尔有限责任公司 | Device for the intermediate storage of band-like weft material for a weaving machine and weaving machine having such a device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3481980A4 (en) | 2020-02-26 |
| CN109415851B (en) | 2021-07-09 |
| EP3481980B1 (en) | 2021-10-27 |
| WO2018009120A1 (en) | 2018-01-11 |
| EP3481980A1 (en) | 2019-05-15 |
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