CN102803591B - Gripper unit, control system for a gripper unit and weaving machine - Google Patents
Gripper unit, control system for a gripper unit and weaving machine Download PDFInfo
- Publication number
- CN102803591B CN102803591B CN201080025754.2A CN201080025754A CN102803591B CN 102803591 B CN102803591 B CN 102803591B CN 201080025754 A CN201080025754 A CN 201080025754A CN 102803591 B CN102803591 B CN 102803591B
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- Prior art keywords
- clamper
- grip unit
- valve
- holding vessel
- pneumatic actuator
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- 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
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/20—Constructional features of the thread-engaging device on the inserters
- D03D47/23—Thread grippers
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- 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
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/20—Constructional features of the thread-engaging device on the inserters
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
A gripper unit (1) with a gripper (2, 8) comprising a thread holder (20) and a pneumatic actuator (21) for opening and/or closing the thread holder (20), wherein a valve (22) for controlling a compressed air supply to the pneumatic actuator (21) is provided on the gripper (2, 8). A control system (6) and a weaving machine comprising a gripper unit (1) and a control system (6).
Description
The present invention relates to a kind of grip unit, a kind of control system for grip unit and the loom comprising grip unit and/or the control system for grip unit.
In a kind of Rapier looms, parallel or weft yarn by least one clamper with at a high speed and high acceleration transmission.In most of Rapier looms, parallel, by the clamper transmission of two edges through the opposite direction movement of the shed open opened, particularly draws clamper and captures clamper.Here the parallel from bobbin is held device by dedicating haulage clip to and is taken away by this clamper so that in the middle part of wefting insertion to this shed open.Be pulled clamper at this shed open equator to present to and capture clamper and taken away by this crawl clamper so that wefting insertion is to another side of this shed open.Each clamper is fixed on flexible clamping band or rigidity supporting rod to move back and forth the shed open by opening.Clamper comprises the retainer for keeping parallel, especially for the clip clamping parallel.
Knownly provide a kind of retainer or clip for clamper, described retainer or clip can capture parallel when being closed.These clampers are also called as " passive clamper ".Have and to open for the active kept or clamp parallel and the retainer of initiatively closing or clip are called as " initiatively clamper ".Initiatively clamper coordinates to open this retainer or clip with a kind of device usually.But these devices usually have very large inertia and therefore speed are restricted.
WO2004/035891A2 and GB1116907 relate to a kind of active clamper with clip, wherein the pawl of clip can move between the two positions and auxiliary energy can be utilized to be fixed in primary importance, simultaneously spring-force driven dual on clip described pawl is brought in the second place.When stopping supply auxiliary energy, this pawl is released and is moved in the second place by spring force.
WO02/095105A1 describes a kind of wire clamp for loom, comprise the pneumatic moveable part for moving clip between the two positions, wherein, this part can be moved by passive pressure described part to be brought in primary importance and to move this part this part to be brought in the second place by overvoltage.The pneumatic wire clamp that controls for loom is also known, wherein for controlling to be fixedly mounted on this loom to the compressed-air actuated pneumatic controlled wire clamp of pneumatic actuator supply and to be communicated with in parallel clip via supply pipe with this pneumatic actuator.
Target of the present invention is to provide a kind of initiatively clamper, and wherein the retainer of this clamper or clip can not be closed or open at a high speed with not destroying this weaving process.
This target is achieved in that a kind of grip unit, comprise: there is the clamper for keeping the wire maintainer of parallel (such as clamping the wire clamp of parallel), with the pneumatic actuator for mobile this wire maintainer (especially for this wire maintainer of open and/or closed), with at least one for controlling the valve arranged to the compressed-air actuated clamper near described grip unit of this pneumatic actuator supply, described valve is preferably arranged on the clamper of this grip unit.
According to the present invention, valve is set near the front end of this clamping band, this means near and preferably on this clamper, therefore near the pneumatic actuator of this clamper.Preferably this valve arranges enough near this pneumatic actuator.In one embodiment, this valve overlaps to the outlet of this actuator and the import of this actuator.By this valve is arranged near this clamper, possible during the quick response of pneumatic actuator, and the air supply between this valve and this pneumatic actuator can be minimized.Moreover the Pressure Drop between described valve and pneumatic actuator can be avoided.Preferably use pneumatic actuator, because can apply relative to high power to move this wire maintainer, this valve can be opened with low-energy-consumption or be closed simultaneously.The design of this valve is preferably suitable for this pneumatic actuator.In a preferred embodiment, electromagnetic valve is employed.
In a preferred embodiment, described valve is 3/2 valve, this 3/2 valve in one location best being opened in actuated position allows compressed air to flow in this pneumatic actuator, simultaneously in another position, allows this compressed air to flee from out this pneumatic actuator in environment.An outlet of this 3/2 valve is connected with this compressed air supply, outlet to be connected with environment and one export and be connected with this pneumatic actuator.According to preferred embodiment, 3/2 valve can comprise the pivotable element with valve element, and this pivotable element is configured so that this can the center of gravity of pivoting member can the pivot of pivoting member overlap with this.If this can the moving direction horizontally set of relative this clamper of pivoting member, then can the actuating that will not affect described valve of the acceleration force in pivoting member at this, this means on the position of this valve element.
Generally, due to the inertia of this wire maintainer and the inertia of this pneumatic actuator, postpone in the life period between the opening of this wire maintainer of opening of this valve.Especially, this inertia causes when described valve is when the very first time, interim was opened, and described wire maintainer will be opened during second time interval.This second time interval starting sometime and terminating sometime of terminating at this very first time interval after this very first time interval starts.In a specific embodiment, when when wire maintainer is closed, compressed air is allowed to escape out this actuator, this valve can be opened to minimize the impact of this wire maintainer on parallel during the short time interval again.In another embodiment, multiple time intervals of opening this valve can to open or shutdown sequence device is followed each other of this wire clamp is single, thus control degree and the speed of the open and/or closed of this wire maintainer.Therefore, the degree of the open and/or closed of this wire maintainer and speed can be controlled by controlling to open moment of the valve of this grip unit or time.Alternatively or additionally, the degree of the open and/or closed of this wire maintainer and speed can by controlling to be controlled at the compressed-air actuated pressure supplied to this valve in compressed-air actuated holding vessel and/or the compressed-air actuated pressure supplied to this holding vessel.Pressure in holding vessel can by controlling and adjustment in weaving process, such as, according to the kind of parallel and/or the parameter according to parallel.This also allows to limit this line and the influence power to this wire maintainer.
In one embodiment, this valve is controlled by electric switching device, and described electric switching device is arranged on this clamper annex, preferably on this clamper.This electric switching device comprises receiving system to receive the control signal of the conveyer of self-control device, such as, for controlling this switching device, more particularly for activating the triggering signal of this switching device.This electric switching device comprises actuating device to activate this valve according to actuated signal, is particularly used for starting opening or closing of this retainer, and for making the opening and closing of this retainer synchronous with this loom.Here, this control device can trigger the electric switching device of this clamper according to agreement.This switching device such as can be controlled via the electric wire be integrated in this clamping band, and this can learn from JP9031800A.This switching device can also be controlled wirelessly, and this makes the extra line for switching device unnecessary, therefore avoids the actuation element needing special clamping band or pass warp motion in fell.According to an embodiment, this electric switching device such as, such as, via optical signalling empty packet, light, infrared signal.Utilize infrared ray signal, reduce due to visible ray cause the risk to the destruction of the work of this electric switching device.Best, this receiving system is configured to receive the optical signalling being arranged essentially parallel to the motion of this clamper path, such as, in weft yarn direction of insertion.Best, be used for producing the diode of infrared ray light, because this needs less aliging compared with such as laser beam.In another embodiment, radio wave signal is received device reception to activate this electric switching device.In one embodiment, this electric switching device also comprises conveyer signal being delivered to control device.Like this this switching device can with this control device diconnected, preferably use a kind of agreement and/or modulation signal.Like this, the risk that arbitrary signal is considered to triggering signal is lowered.For this valve of control, particularly for the described valve of actuating, if time delay can be estimated, the triggering signal activating this valve and the time delay started between this opening operation and/or shutoff operation can be tolerated in.
According to another embodiment, this grip unit also comprises storage unit, particularly electric capacity, and for being electric switching device and/or at least one valve store electrical energy described, described storage unit is arranged near this clamper, preferably on this clamper.Electric capacity that is little or lightweight can be selected.As mentioned above, this valve can be chosen as with low energy consumption work.Therefore, little electric storage unit such as electric capacity can be used for supplying enough energy, thus controls electric switching device and/or at least one valve described.This amount of electrical power be stored in this storage unit at least should be enough in most a weaving cycle.Best, this energy, enough at least two weaving cycles, makes this electric capacity loading error be harmless or makes it possible to repeatedly open described valve.In another embodiment, electric switching device can be used, and this electric switching device can be switched by the triggering signal carrying out self-control device to be supplied to its energy, thus there is no need for the energy storage of this switching device.
According to the present invention, grip unit also comprise for for this pneumatic actuator storing compressed air and for supplying compressed-air actuated holding vessel to this pneumatic actuator, this holding vessel to be arranged near this clamper preferably on this clamper.Best, the outlet of this holding vessel is positioned at this and is positioned at best at least one valve annex on this clamper near this clamper.In one embodiment, the size of holding vessel can be chosen as and make enough compressed-air-storings in this holding vessel to open this wire maintainer at least one times in this weaving cycle.In another embodiment, the size of this holding vessel can be chosen as the compressed air of storage q.s so that process is because leak the losses of compressed air caused, thus overcome supplying the once mistake in compressed-air actuated technique to holding vessel between two weaving cycles, thus allow second time in weaving cycle to open described valve and/or be provided in the slow operation of loom, open the additional of described valve to open period.In one embodiment, if this wire maintainer is opened during this holding vessel at supply compressed air outside shed open, less holding vessel capacity is needed.
Pressure in holding vessel can be selected suitably, such as about 5 bar, thus allows to store enough compressed air and the air supply be minimized between this holding vessel and pneumatic actuator.This advantageously keep the volume of this holding vessel or size lower.Holding vessel to be arranged near this clamper preferably this clamper to allow to omit and to be mobilely used for supplying compressed air to the supply pipe of holding vessel.Like this, supply pipe is not had and this is through linear contact lay.Therefore clamper of the present invention is " warp close friend ".Moreover because do not have supply pipe to move together with this clamper, the additional masterpiece not do not caused by this supply pipe mobile, for this clamper or this clamping band, makes to occur the less wearing and tearing caused because of external force.
According to an embodiment, this holding vessel is provided with supply pipe or entrance, can be connected via their this holding vessels with for supplying compressed-air actuated feeding mechanism to this holding vessel.This supply pipe or entrance can be formed as allowing and supplying the compressed air boring that the stationary pipes linear element to holding vessel is connected.In one embodiment, this entrance is arranged so that the tube element receiving and be parallel to this parallel direction of insertion and extend.Best, return valve is arranged on the porch of this holding vessel.This return valve allows compressed air to be fed to this holding vessel, but prevents compressed air to escape from this holding vessel via entrance.
According to another embodiment, at least one restoring force element arranges and is used for forcing wire maintainer in a closed position, and wherein this actuator forces wire maintainer to be in the open position of the power of this restoring force element of opposing.When providing a restoring force element, this wire maintainer or wire clamp can be forced in the closed position to keep this parallel.Restoring force element such as can be embodied as spring.
In a preferred embodiment, this pneumatic actuator is air rammer.In one embodiment, this air rammer comprises the ventilating opening of oneself to allow air when in piston arrives precalculated position to escape out from this piston.When use 3/2 valve, best, this valve has been closed in this moment thus has saved compressed air.If use restoring force element, ventilating opening is utilized to allow in the short period, close parallel retainer.Air to be escaped via ventilating opening from this actuator via 3/2 valve.This ventilating opening can comprise multiple aperture, and they are arranged on the diverse location of this piston, especially on the diverse location of the moving direction along this piston.
Target of the present invention realizes further like this: for a kind of control system of grip unit, it is characterized in that, this control system controls grip unit of the present invention.This control system can be fixedly installed near shed open.
This control system comprises the control device for controlling at the retainer of setting moment open and/or closed clamper in weaving cycle.This control system can be calibrated to ensure that the retainer of described clamper is opened in the correct moment and/or cuts out in weaving cycle.Preferably after multiple weaving cycle, repeat described calibration to avoid the mistake because wearing and tearing, compressed air escape etc. cause.For each insertion, in described weaving cycle, the open and/or closed moment of the retainer of clamper can be controlled independently by control device, thus without the need to machinery arrange, therefore for each independently insert for, provide best setting.Certainly, outside this shed open, the wire maintainer of each clamper by additional mechanism providing additional operation, such as, can also be opened and/or closes as described in WO2003/04746 or WO97/40218.The additional mechanism providing additional operation be arranged on outside described shed open like this can also be used for the opening degree of the wire maintainer limiting clamper.Outside shed open, this traction clamper can the holding vessel of this grip unit be provided with compressed air simultaneously or and then after be opened.This crawl clamper can the holding vessel of this grip unit is provided with compressed-air actuated while or and then after be opened.
For parallel from this traction clamper to the transfer capturing clamper, the pneumatic actuator of each clamper preferably passes through to activated via the compressed air of at least one the valve supply be arranged near this traction clamper or this traction clamper or near this crawl clamper or on this crawl clamper respectively from this holding vessel to this pneumatic actuator during small time intervals.
Best, arrange and use control device and electric switching device, thus via control to the compressed-air actuated described valve of pneumatic actuator supply, especially by activating and/or remove the described electric switching device activating and be arranged near this clamper or on this clamper, the open and/or closed of this wire maintainer of wireless trigger, on the vicinity that described valve is arranged on this clamper or this clamper, described pneumatic actuator is arranged near this clamper or on this clamper.In one embodiment, this control device comprises at least one diode for generation of IR.When using infrared ray, because visible ray causes being lowered the destruction risk of this control device work.Best, described control device triggers the electric switching device of described clamper according to agreement.This control device comprises the conveyer for generation of triggering signal, and this electric switching device be arranged on this clamper comprises receiving system, and the flip flop equipment receiving triggering signal followed by described receiving system.Best, this control device and electrically both switching devices have conveyer and for sending the receiving system with Received signal strength.Best, using a kind of agreement, is wherein confirmation signal after signal, to reduce risk arbitrary signal being thought triggering signal.
According to an embodiment, this control system comprises for supplying compressed air to the pneumatic feed means of described holding vessel.This pneumatic feed means is preferably fixedly installed on outside shed open.In one embodiment, this pneumatic feed means has output element, particularly tubulose output element, and the entrance of the holding vessel of grip unit enters described output element.By controlling the compressed air be supplied in this holding vessel, the compressed-air actuated pressure in holding vessel can such as be controlled for different wefting insertion weaving period and be adjusted.By controlling the compressed-air actuated pressure in holding vessel, the opening degree of the wire maintainer of this clamper and/or can being controlled of opening speed.
In another embodiment, this control system also comprises for loading described storage unit, particularly the electric charger of described electric capacity.In a preferred embodiment, this electrically loads is that the contact zones that are such as connected with power supply via contact element or brush complete, and described contact zones or contact brush can be connected with this storage unit with the contact element contacts of this grip unit.Contact zones have such as been known and have been described in JP9031800A.For being storage unit, particularly electric capacity, load electric energy, preferably the only supplying energy when contact zones contact contact element fully.In other words, electric energy is controlled as and makes only at the described contact element of described band and this clamper mutually fully in period of contact, and electric energy is just supplied for storage unit loading.Therefore avoid and produce disadvantageous spark.Because very little for the energy size of each wefting insertion, this restricted load time is enough used for loading sufficient energy.According to alternative embodiment, the sensed loading of this electric capacity, described by CH455664.The method of other supply electric energy is also fine.
Described target is also realized by following proposal: a kind of loom, comprises at least one grip unit and at least one control system.In one embodiment, an only grip unit, preferably includes this grip unit of traction clamper according to the invention process, and another grip unit, such as comprise the grip unit of described crawl clamper not according to the invention process.
Below, other particularity of the present invention and advantage manifest in exemplary and non-limiting that provide, drawings attached illustrated embodiment, and accompanying drawing comprises:
Fig. 1 is the schematic perspective view with a part for the weft insertion system of grip unit for clamper loom;
Fig. 2 is the schematic perspective view with the grip unit capturing clamper;
Fig. 3 is that schematic top plan view is cutd open by the office of the clamper of the Fig. 2 be in the open position of wire maintainer;
Fig. 4 is the clamper of Fig. 2 and the schematic perspective view of pneumatic feed means;
Fig. 5 is the cross-sectional schematic of the modification of the clamper of Fig. 2 and the pneumatic feed means of Fig. 4;
Fig. 6 is the clamper of Fig. 2 and the schematic perspective view of electric charger;
Fig. 7 is the clamper of Fig. 2 and the schematic perspective view of control device;
Fig. 8 is the clamper of Fig. 2 and the schematic perspective view being arranged on Weaving shed neighbouring control system;
Fig. 9 is used in the valve according in clamper of the present invention;
Figure 10 is the schematic perspective view of the grip unit with traction clamper;
Figure 11 is that schematic side view is cutd open by the office of a part for the traction clamper of Figure 10, looks along direction P;
Figure 12 has the modification grip unit of the present invention capturing clamper;
Figure 13 is the crawl clamper of the Fig. 3 be in the closed position of this wire maintainer;
Figure 14 is the crawl clamper of the Fig. 3 be in the partial open position of this wire maintainer; With
Figure 15 is the modification of the crawl clamper of Fig. 3, is in the open position of this wire maintainer.
Fig. 1 schematically shows a part for the weft insertion system with the grip unit 1 be arranged on flexible clamping band 3.This grip unit 1 comprises the clamper 2 be arranged in this clamping band 3 for being inserted into by parallel in shed open 7 especially.This clamping band 3 can be moved back and forth by the driving wheel 4 for this clamping band 3 on moving direction L.This driving wheel 4 tooth be provided with in this clamping band 3 engages opening 5 and driven-mechanism (not shown) drives.Control system 6 is fixedly installed near this shed open 7.Clamper 2 shown in Fig. 2 and 3 captures clamper.
The clamper 2 of grip unit 1 is provided with wire maintainer 20, pneumatic actuator 21, valve 22, holding vessel 23, receiving system 24 such as optical pickocff, for the storage unit 25 of electric energy, the restoring force element 26 of such as spring, and electric switching device 27.This clamper 2 also comprises framework 28 and the induction element 29 for warp.This grip unit 1 for by clamping band 3 with high acceleration, at full speed and move with Long Distances.Therefore, the weight preferably with this grip unit 1 of all parts should be limited.In this embodiment, this valve 22, this holding vessel 23 and storage unit 25 are at least partially disposed in framework 28.
In the embodiment shown in figs. 2 and 3, parallel retainer 20, particularly this wire clamp, comprise and around the removable pawl 30 of pivot 31 pivotable, and can be fixed to the pawl 32 on described framework 28.Described pawl 30 is in aggregates and in being maintained in its closed position by the restoring force element 26 formed by spring 34, this restoring force element 26 acts on the lever 33 of this removable pawl 30 with lever 33 shape.For opening this wire maintainer 20, the masterpiece that the piston 35 of this pneumatic actuator 21 overcomes spring 34 is used on this lever 33.Described spring 34 forces this removable pawl 30 in a closed position.This lever 33 also comprises the stopping element 36 of the movement can moved this removable pawl 30 or limit this removable pawl 30.
According to the present invention, this grip unit 1 comprises for controlling the compressed-air actuated valve 22 supplied to the actuator 21 be arranged near this clamper 2, and especially, this actuator 21 is arranged on the framework 28 of this clamper 2.Best, this valve 22 is arranged near this pneumatic actuator 21 so that the outlet 40 of this valve 22 is connected with the entrance 41 of the actuator 21 shown in Fig. 3.By being arranged near this pneumatic actuator 21 by valve 22, obtain the compressed-air actuated quick response to being supplied to pneumatic actuator 21, and the loss caused because of the pressurization of the conduit between described valve 22 and pneumatic actuator 21 can be limited.
Electric switching device 27 via the proper timing in the weaving cycle of loom activates described valve 22.This allow for capture and during keeping the setting of parallel in open this wire maintainer 20.Described electric switching device 27 comprises the actuating device 42 activating described valve 22 according to triggering signal.In the embodiments of figure 3, this grip unit 1 also comprises the receiving system 24 for triggering signal having and be arranged on sensor 43 near this clamper 2 preferably photodiode, this sensor 43 receives the signal of particularly visible ray or black light such as IR, thus triggers the switching device 27 of this valve 22.
This valve 22 is electromagnetic valves.For the electrical power storage of this valve 22 in storage unit 25, be particularly stored in electric capacity.In order to load electric energy for storage unit 25, electric contacts 44 is arranged on the outer surface of this trigger 2, is particularly arranged on the outer surface of this framework 28.
In addition, this grip unit 1 comprises the compressed-air actuated holding vessel 23 stored for this pneumatic actuator 21, and described holding vessel 23 is arranged near this clamper 2, and be preferably disposed on this clamper 2, wherein this valve 22 is positioned near the outlet 45 of this holding vessel 23.In order to minimize the weight of this grip unit 1, this holding vessel 23 is shaped as and carries only enough compressed air to ensure indefectible weaving.A part for this holding vessel 23 preferably framework 28 of this clamper 2.In order to for should holding vessel 23, this holding vessel 23 be provided with supply pipe or entrance 46 and return valve 47.This return valve 47 prevents air from can escape out from this holding vessel 23 via entrance 46.At least enough be used for during at least one weaving cycle to be stored in the compressed-air actuated amount in this holding vessel 23, this means during at least one wefting insertion, open and close this wire maintainer 20.In crawl clamper situation, wire maintainer 20 can at least be opened during parallel is transferred to crawl clamper from traction clamper within minor time slice.Compressed-air actuated amount can be chosen as the amount be greater than needed for a weaving cycle certainly.
Fig. 4 schematically shows supply compressed air to the embodiment of the pneumatic feed means 10 of the holding vessel 23 of this grip unit 1.This pneumatic feed means 10 comprises the tube element 11 of the entrance 46 being connected to holding vessel 23.Described feeding mechanism 10 is fixed on the frame part 9 of this loom.Best, tube element 11 is parallel to wefting insertion direction and arranges and be connected via control valve 12 and feed line 13 with compressed air source.This control valve 12 such as comprises electromagnetic actuators 14.This feeding mechanism 10 also comprises at least one guide recess 15 that can coordinate with the induction element 29 be arranged in this grip unit 1, and this induction element 29 is such as arranged to grip unit 1 and pneumatic feed means 10 to be in alignment with each other.Thus when making them move towards each other, holding vessel 23 can easily join on this feeding mechanism 10 via tube element 11 and entrance 46, and described entrance 46 allows compressed air to be supplied to this holding vessel 23.
Fig. 5 schematically shows pneumatic feed means 10, and wherein tube element 11 is set to enter into the entrance of the holding vessel 23 arranged in this grip unit 1.Feed line 13 is arranged in this pneumatic feed means 10, and this pneumatic feed means 10 has the end 59 be connected with this tube element 11.This tube element 11 this end 59 relative is flexibly arranged in pneumatic feed means 10 by spring 60.Even if this allows this tube element 11 can not have toward each other to enter in the entrance of this holding vessel 23 during perfect alignment at the entrance of tube element and holding vessel 23.
Fig. 6 schematically shows the electric charger 16 with contact element 17 such as contact zones 18, to contact with the electrical contact element 44 be arranged in grip unit 1.Best, if only contact zones 18 contact with each other with the contact element 44 of this grip unit 1, this electric charger 16 is by control supply electric energy.Like this, disadvantageous generation spark is avoided.Because the amount that band is stored into the electric energy in storage unit 25 is very little, so the supply of electric energy is enough used for loading described storage unit 25 usually during the time interval limited.This electric charger 16 is arranged on this Weaving shed outside.This charger 16 is shaped and is arranged so that this grip unit 1 can be passed through along charger 16.
Fig. 7 schematically shows the control device 37 of transmission (transmitting) device 38 comprised for generating and transmit (transmitting) signal 39, such as, for the light emitting diode of emission of light.This wire maintainer 20 is opened or closed to this signal 39 for triggering via valve 22.Described signal 39 can be received device 24 and such as be arranged on sensor 43 in grip unit 1, such as photodiode, receives.In a preferred embodiment, this conveyer 38 is communicated with according to agreement with receiving system 24.According to a kind of agreement, each signal is followed by secondary signal in predetermined time delay.The time period of a signal can be set up, such as half millisecond, and time delay can be set to one millisecond.If such as this receiving system 24 have received two signals in described time delay, then this receiving system 24 accepts these two signals as effective triggering signal.In another embodiment, this grip unit 1 and control device 37 are provided with the receiving system and conveyer that can be communicated with according to bidirectional protocol.The accuracy of this connection such as can be ignored further by use filtering and be less than 0.2 millisecond or by using signal madulation to be such as increased with the square wave of 40kHZ.In another embodiment, this control device 37 and trigger element 1 can comprise conveyer and/or the receiving system for using electromagnetic radio communication.
Fig. 8 schematically shows the stereogram of the grip unit 1 with clamper 2 and control system 6, and this set-up of control system on the frame part 9 near shed open 7, and is arranged on the direction of reed 66 of loom.In this embodiment, this control system 6 comprises and arranging near the electric charger 16 of this shed open 7, arranges the control device 37 farthest away from this shed open and the pneumatic feed means 10 that is arranged between this charger 16 and control device 37.In an alternate embodiment, these three devices can arrange or may be embodied as the single device constituting control system 6 in addition.As shown in figures 4 and 8, this guide recess 15 may be embodied as be greater than required size thus allow induction element 29 through and can be suitable for allowing signal 39 process, such as by the light of pneumatic feed means 10 to reach the receiving system 24 on clamper 2.
The actuator 14 of this control valve 12, this contact element 17 of this charger 16 and the conveyer 38 of this control device 37 are controlled by the control unit 19 of loom.This control valve 12 is connected to compressed air source 48, thus supply compressed air is to this control valve 12.This source 48 can comprise compressor reducer, feed line, surge tank, valve system and/or pressure regulator.
As shown in Figure 9, valve 22 is a kind of 3/2 electromagnetic valves, and this 3/2 electromagnetic valve has 3 openings and two positions.In primary importance, the preferably actuated position of this valve 22, compressed air is fed to this actuator 21 to overcome this spring 34 power driven plunger 35 by via passage 61 and 62 from this holding vessel 23.In the second position, best non-actuated position, as shown in Figure 9, the compressed air from actuator 21 can escape in environment via described valve 22, more particularly via passage 62 and 63.This valve 22 comprise there is valve element 50 can pivoting member 49, this pivoting member 49 can be constructed so that this can the center of gravity of pivoting member 49 almost can the pivot 51 of pivoting member 49 overlap with this.This can have the moving direction L horizontally set of the grip unit 1 of clamper 2 by relative this of pivoting member 49, thus restriction is because the inertia force in this pivoting member 49 that causes of the movement of this grip unit 1.This can pivoting member 49 can be such as moved by attraction by the power that electromagnet 64 overcomes spring 65.This actuator 21 also comprises ventilating opening 52, and this ventilating opening 52 has multiple aperture 53 and/or 54.This aperture 53 and 54 is arranged in diverse location according to the moving direction of this piston 35.This allows compressed air to escape from this actuator 21 when piston 35 has arrived precalculated position.According to a modification, described aperture 54 such as can be omitted.
Figure 10 and 11 shows the embodiment with the grip unit 1 of clamper 8 of the present invention, and described clamper particularly draws clamper, is arranged in this clamping band 3.The clamper 8 with valve 22 is arranged in this clamping band 3 via the framework of clamper carrier 68 with this holding vessel 23, has the holding vessel 23 of particularly storage unit 25, contact element 44, entrance 46 and induction element 29 simultaneously and is set directly in this clamping band 3.The framework of this holding vessel 23 and this induction element 29 can form the part of the framework 28 of this clamper 8 or in aggregates with framework 28 structure of this clamper 8.In this embodiment, wire maintainer 20 comprises the fixed claw 32 as a part for framework 28, and is connected with lever 33 and around the removable pawl 30 of pivot 31 pivotable.The power that described lever 33 moves to overcome spring 34 by the piston 35 of pneumatic actuator 21 opens this wire maintainer 20.This grip unit 1 with clamper 8 also comprises: valve 22, and this valve 22 provides has compressed-air actuated pneumatic actuator 21; Actuating device 42; Electrical switch device 27; Receiving system 24; Storage unit 25; Be provided with the holding vessel 23 of entrance 46; Electrical contact element 44 and induction element 29, thus this clamper 8 can coordinate with control system 6 and suitable crawl clamper.
Figure 12 shows the grip unit 1 for loom, and this grip unit 1 comprises the clamper 2 with wire maintainer 20, for moving the pneumatic actuator 21 of this wire maintainer 20 and being supplied to the valve of pneumatic actuator 21 for controlling compressed air.The height that this grip unit 1 is arranged on the end of this clamping band 3 moves together with clamping band 3.In this embodiment, especially this holding vessel 23, this storage unit 25, this valve 22, this actuating device 42, this receiving system 24 and contact element 44 are arranged on the carrier 69 that is fixed in this clamping band 3, and the edge of this carrier constitutes induction element 29.The framework 28 of this crawl clamper 2 to be arranged in this clamping band 3 on the prolongation of this carrier 69 and near this carrier 69, this framework 28 to be moved together with this carrier 69.This actuator 21 is connected with described valve 22 via relatively short conduit 70 to provide compressed air for this actuator 21.
According to the unshowned modification in the grip unit 1 of Figure 12, this crawl clamper 2 can be replaced by traction clamper 8.This crawl clamper 2 and traction clamper 8 can be implemented in the mode being different from shown embodiment certainly, such as, have the wire maintainer or analog that describe especially in GB1582327, DE1710292, EP207533, EP1127181 etc.
This clamper 2 and 8 is for inserting parallel, and the wire maintainer 20 of each clamper 2 or 8 is opened according to setting sequence and/or closes during weaving cycle thus.The example of such sequence is known in CH510151 or EP266286.Yarn retainer 20, for keeping during parallel is incorporated into shed open, particularly clamps parallel.During each use pneumatic actuator 21, wire maintainer 20 can be opened and/or close.Best, compressed air is supplied to this holding vessel 23, and when each clamper is in the position outside this shed open 7, electric energy is supplied to storage unit 25.Alternatively, this wire maintainer 20 can be opened by the position of pneumatic actuator 21 at the middle part near shed open 7 and/or be closed, simultaneously outside this shed open 7, wire maintainer 20 schematically illustrates that the driver 56 that stopping element 55 and controlled unit 19 can also be utilized like that to control as follows is opened and/or closes as shown in Figure 8: the mode described in WO2003/04746 or WO97/40218.This stopping element 55 contacts with this stopping element 36 of described lever 33 so that mobile this wire maintainer 20 described.
In preferred replacement situation, this stopping element 55 be arranged on outside this shed open 7 also can be used to limit the opening degree of this wire maintainer 20.This stopping element 55 can utilize the device described in WO03/04746 or WO97/40218 to be positioned in desired location.In this embodiment, likely utilize pneumatic actuator 21 outside shed open 7, can open this wire maintainer 20 from the closed position shown in Figure 13, opening degree is restricted to the partial open position shown in Figure 14 by stopping element 55 simultaneously.In the middle of this shed open 7, opening degree is also unrestricted and determined by the position of pneumatic actuator 21, as shown in Figure 2.This position can be applied the air pressure on the piston 35 of actuator 21 or be installed in the motion limiting this lever 33 clamper 2 framework 28 on stopping element determine.This allows in this shed open than opening described wire maintainer 20 more in this shed open 7 outside.This can be used in particular for capturing retainer 2, wherein said crawl retainer 2 is opened to capture the parallel from traction clamper 8 in the middle of this shed open 7 as wide as possible, the sub-fraction of this crawl clamper 2 only outside shed open 7 is opened simultaneously, allow for parallel and kept by wire maintainer 20 further and be no longer kept device 20 clamping.Thus, parallel is kept between removable pawl 30 and fixed claw 32 on the height of the ledge 76 of fixed claw 32.This is particularly conducive to release parallel.This also allows to open this parallel retainer 20 in the setting moment in weaving cycle, and this setting moment is arranged independent of weaving speed or any other machinery.
In order to pass through compressed air actuating pneumatic actuator 21, control unit 19 controls described control device 37 to produce signal 39 in the setting moment in weaving cycle.Then this receiving system 24 Received signal strength 39 and control electric switching device 27 and make this actuating device 42 activate described valve 22 according to signal 39.In one embodiment, if receiving system 24 have received control and/or triggering signal 39 to control described switching device 27, then this switching device 27 controls this actuating device 42 and makes this actuating device 42 activate described valve 22 during such as 5 milliseconds of time intervals.
In one embodiment, in order to open and keep this wire maintainer 20 to open, valve 22 can activated once.In order to limit the opening speed of this wire maintainer 20, this valve 22 can activated during multiple section time interval of continuous print each other.In order to close this wire maintainer 20, valve 22 no longer activated.In order to prevent because the power of this spring 34 causes wire maintainer 20 be closed with impulsive force and/or close with too high closing velocity, valve 22 can activated to limit described closing velocity during one or more short time interval during the shutoff operation of wire maintainer 20, particularly limits the closing velocity just before implementing impulsive force.
In the embodiment of Figure 15, the valve 58 that restoring force element 26 comprises via close best setting on clamper 2 is provided with compressed-air actuated pneumatic actuator 57.This valve 58 is provided with from the compressed air in holding vessel 23 in the mode being similar to valve 22, and the mode that can be similar to valve 22 activated.In this manner, additionally, the opening and closing of this wire maintainer 20 will by pneumatic actuator 21, and 57 implement.If pneumatic actuator 57 in its closed position, then likely replaces this pneumatic actuator 21 with spring element for this wire maintainer 20 mobile.In this manner, this wire maintainer will be opened by spring element and will be closed by pneumatic actuator 57.According to the modification of Figure 15, lever 33 can be provided with the stopping element of the stopping element 36 being similar to Fig. 3.
Although as shown in the Examples there is clamper 2, this grip unit 1 of 8 is arranged on flexible clamping band 3 or clamping steel band, but also likely this grip unit 1 is arranged on the arrow shaft of any type, such as rigidity supporting rod, this rigidity supporting rod is such as driven by driving wheel or driving mechanism.Certainly, the compressed air of application can be replaced with any suitable fluid such as steam or gas.If this clamper 2,8 has the exterior contour being similar to existing clamper, then clamper 2,8 of the present invention can easily be replaced by existing clamper.
According to this grip unit of claims below, this control system and this loom are not limited to above-described embodiment, but the modification that can also comprise them and combination, these modification and combination are subject to the restriction of the protection domain of claims.
Claims (16)
1. for a grip unit for loom, comprising: the active clamper (2,8) with wire maintainer (20); For opening and closing the pneumatic actuator (21,57) of this wire maintainer (20); And valve (22,58), for the compressed air that controls to supply to described pneumatic actuator (21,57) to open and close this wire maintainer (20),
Wherein, described valve (22,58) is arranged on described pneumatic actuator (21,57), near, and wherein, described clamper (2 is comprised, 8), the described grip unit (1) of described pneumatic actuator (21,57) and described valve (22,58) is for being moved by the arrow shaft of loom.
2. grip unit according to claim 1, is characterized in that, the outlet of described valve (22,58) and the import of described pneumatic actuator (21,57) overlap.
3. grip unit according to claim 1 and 2, is characterized in that, this grip unit (1) comprises holding vessel (23), and this holding vessel (23) is arranged near this clamper (2,8), for supplying compressed air to this pneumatic actuator (21,57).
4. grip unit according to claim 1 and 2, is characterized in that, this grip unit (1) comprises the electric switching device (27) of the receiving system (24) had for receiving the signal (39) controlling described valve (22,58).
5. grip unit according to claim 4, is characterized in that, this grip unit (1) comprises the storage unit (25) for store electrical energy, and described electric energy is used for described electric switching device (27) and/or described valve (22,58).
6. grip unit according to claim 5, is characterized in that, described storage unit (25) is capacitor.
7. grip unit according to claim 3, it is characterized in that, this holding vessel (23) is provided with for supplying the compressed-air actuated pneumatic feed means entrance that (10) are connected (46) by this holding vessel (23) with to this holding vessel (23), and/or this valve (22,58) is arranged near the outlet (45) of this holding vessel (23).
8. grip unit according to claim 7, is characterized in that, arranges return valve (47) at entrance (46) place of described holding vessel (23).
9. grip unit according to claim 1 and 2, it is characterized in that, during at least one restoring force element (26) arranges and is used for forcing this wire maintainer (20) in the closed position, and this pneumatic actuator (21) forces this wire maintainer (20) to be in the open position of the power overcoming this restoring force element (26).
10. grip unit according to claim 1 and 2, is characterized in that, this actuator (21,57) comprises air rammer (35).
11. for the control system of grip unit (1), it is characterized in that, this control system (6) comprises is arranged to activated valve (22,58) control device (37), this valve (22,58) for the compressed air that controls to supply to pneumatic actuator (21,57) to open or close the wire maintainer (20) of the clamper (2,8) of the grip unit (1) according to any one of claim 1-10.
12. control systems according to claim 11, it is characterized in that, this control system (6) comprises the electric switching device be arranged in grip unit (1), described control device (37) and described electric switching device wireless trigger is utilized to be used for the opening and closing of the valve (22,58) of wire maintainer (20).
13. control systems according to claim 11 or 12, it is characterized in that, described control device (37) is for generation of IR.
14. control systems according to claim 11 or 12, it is characterized in that, this control system (6) comprises for supplying compressed-air actuated pneumatic feed means (10) to holding vessel (23).
15. control systems according to claim 11 or 12, it is characterized in that, this control system (6) comprises electric charger (16), loads electric energy for giving storage unit (25).
16. looms, comprise at least one grip unit (1) with clamper (2,8) according to any one of claim 1-10 and/or at least one control system (6) according to any one of claim 11-15.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE2009/0355A BE1018774A3 (en) | 2009-06-10 | 2009-06-10 | GRIP UNIT, CONTROL UNIT FOR A GRIP UNIT AND WEAVING MACHINE. |
| BE2009/0355 | 2009-06-10 | ||
| PCT/EP2010/003484 WO2010142446A1 (en) | 2009-06-10 | 2010-06-10 | Gripper unit, control system for a gripper unit and weaving machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102803591A CN102803591A (en) | 2012-11-28 |
| CN102803591B true CN102803591B (en) | 2015-06-17 |
Family
ID=41818573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080025754.2A Active CN102803591B (en) | 2009-06-10 | 2010-06-10 | Gripper unit, control system for a gripper unit and weaving machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2440696B2 (en) |
| CN (1) | CN102803591B (en) |
| BE (1) | BE1018774A3 (en) |
| WO (1) | WO2010142446A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010044127B3 (en) * | 2010-11-18 | 2011-12-29 | Lindauer Dornier Gesellschaft Mit Beschränkter Haftung | Gripper head for the entry of weft threads on a rapier loom and a rapier loom with such a gripper head |
| CN103896110B (en) * | 2014-03-31 | 2016-07-06 | 无锡市三达纺配有限公司 | Electronics yarn gripper |
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| CH460661A (en) | 1965-03-27 | 1968-07-31 | Durand Marcel | Needle loom |
| CH455664A (en) | 1967-04-11 | 1968-07-15 | Fischer Ag Brugg Georg | Weft thread monitoring device for weaving machines |
| CH510151A (en) | 1969-10-31 | 1971-07-15 | Dornier Gmbh Lindauer | Shuttleless weaving loom |
| GB1582327A (en) | 1977-04-13 | 1981-01-07 | Mackie & Sons Ltd J | Looms |
| JPS56134231A (en) * | 1980-03-24 | 1981-10-20 | Yoshiko Agehara | Loom for weaving upper and lower layers |
| BE902141A (en) | 1985-04-09 | 1985-10-09 | Picanol Nv | IMPROVED GRAPHERS FOR WEAVING MACHINES. |
| FR2606040B1 (en) | 1986-10-31 | 1988-12-02 | Materiel Textile Ste Alsacienn | DEVICE FOR INSERTING WEFT YARNS ON NON-SHUTTLE WEAVING MATERIALS |
| DE3812966A1 (en) * | 1987-10-02 | 1989-04-20 | Textilma Ag | GRIPPER WEAVING MACHINE |
| JPH0931800A (en) | 1995-07-20 | 1997-02-04 | Toyota Autom Loom Works Ltd | Picking apparatus in rapier loom and rapier band |
| JP2000508722A (en) | 1996-04-19 | 2000-07-11 | ピカノール エヌ．ヴィ． | Device for opening the gripper clamp of a weaving machine gripper |
| AT403700B (en) † | 1996-11-22 | 1998-04-27 | Wis Engineering Gmbh | Gripper head for a thread, in particular for a seam weaving machine |
| EP0984089B1 (en) * | 1998-09-02 | 2003-12-10 | Sultex AG | Method and device for weft insertion in a gripper loom |
| EP1127181B2 (en) | 1998-10-21 | 2010-07-28 | Picanol N.V. | Thread gripper for a rapier of a rapier loom |
| DE20105091U1 (en) † | 2001-03-23 | 2002-09-05 | Wangner Finckh Gmbh & Co Kg | Collet for seam weaving machines |
| BE1014192A3 (en) † | 2001-05-21 | 2003-06-03 | Picanol Nv | DEVICE AND METHOD FOR insertion of weft threads in a weaving machine, AND TAKING DAARDKLEM USED. |
| BE1014191A3 (en) | 2001-05-21 | 2003-06-03 | Picanol Nv | WIRE CLAMP a weaving loom AND CONTAINING SUCH WIRE CLIP. |
| DE10134504A1 (en) | 2001-07-05 | 2003-01-16 | Picanol Nv | Method and device for opening a gripper clamp of a gripper of a weaving machine |
| US7543610B2 (en) * | 2006-06-16 | 2009-06-09 | Sultex Ag | Thread clamp for a rapier head |
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| DE10247375A1 (en) * | 2002-10-10 | 2004-05-06 | Lindauer Dornier Gmbh | Weft gripper/cutter, at a gripper loom, has a lever and a spring to tense a yarn clamping arm which is released through an auxiliary energy supply to open the yarn clamp |
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| EP1867766A1 (en) * | 2006-06-16 | 2007-12-19 | Sultex AG | Thread trapper for a gripper head |
-
2009
- 2009-06-10 BE BE2009/0355A patent/BE1018774A3/en active
-
2010
- 2010-06-10 CN CN201080025754.2A patent/CN102803591B/en active Active
- 2010-06-10 WO PCT/EP2010/003484 patent/WO2010142446A1/en active Application Filing
- 2010-06-10 EP EP10723946.9A patent/EP2440696B2/en active Active
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| 朱苏康等.刚性与挠性剑杆.《机织学》.中国纺织出版社,2008,(第一版),第198页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2440696A1 (en) | 2012-04-18 |
| WO2010142446A8 (en) | 2011-03-10 |
| CN102803591A (en) | 2012-11-28 |
| EP2440696B2 (en) | 2018-12-26 |
| EP2440696B1 (en) | 2016-01-06 |
| BE1018774A3 (en) | 2011-08-02 |
| WO2010142446A1 (en) | 2010-12-16 |
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