CN102767036B

CN102767036B - Weft storage device of loom

Info

Publication number: CN102767036B
Application number: CN201210135739.4A
Authority: CN
Inventors: 山口和幸
Original assignee: Toyoda Automatic Loom Works Ltd
Current assignee: Toyota Industries Corp
Priority date: 2011-05-06
Filing date: 2012-05-04
Publication date: 2014-05-07
Anticipated expiration: 2032-05-04
Also published as: JP5229351B2; BE1020503A3; CN102767036A; JP2012233282A

Abstract

A weft storage device of a loom comprises the components as following: a plurality of weft provision parts, wherein wefts are extracted from the weft provision parts; a single rotary roller, which is equiped with a movable pin connected to the wefts; and a weft clamping part, which can release the wefts when weft insertion begins and hold the wefts when weft insertion is finished. The wefts connected to the pin are rolling to be stored on the roller, the weft storage device also comprises a plurality of weft guiding rods which can move toward the axes of the roller, a cam mechanism which enables the weft guiding rods to move toward the axes of the roller, and a plurality of restrication mechanisms which can selectively restricate the movement of the weft guiding rods corresponding to electric signals.

Description

Storage latitude equipment in loom

Technical field

The present invention relates to a kind of a plurality of storage latitude equipment supplying in the loom of latitude portion that has.

Background technology

In the shuttleless loom of introducing continuously at the weft yarn of predetermined length, there is known storage latitude method, wherein before wefting insertion, from supplying the storing weft threads of latitude portion extraction on the periphery of cylinder, so that the friction on the weft yarn of extracting out in minimizing during wefting insertion and the variation of this friction.In the polychrome loom of weft yarn that uses two or more identical or different types, need to be adjacent to the weft insertion device of loom to provide a plurality of cylinders of this weft yarn of equal number.Therefore, increased for the space of loom is installed, and the structure of storage latitude equipment becomes complicated, cause cost to increase.

In order to solve such problem, for example, the open No.48-42164 of Japanese unexamined patent discloses a kind of permission and for latitude portion, has utilized single cylinder to store up the equipment of latitude for a plurality of.In this equipment, a plurality of weft yarns arrange side by side and stretch in the adjacent position of the periphery with cylinder.The weft yarn of introducing is moved towards the axis of cylinder by weft yarn guide rod, to close with the pin joint stretching out from cylinder.Along with the rotation of cylinder, the weft yarn of predetermined length is wound on cylinder and is stored on cylinder.

With each weft yarn, a plurality of weft yarn guide rods are set explicitly.Each weft yarn guide rod is promoted to tilt with the axis towards cylinder by spring, but this banking motion of weft yarn guide rod is subject to the solenoidal restriction arranging for each weft yarn guide rod conventionally.In response to the wefting insertion signal from having the card of braided fabric or weave pattern data, the solenoid of the weft yarn guide rod that the weft yarn for introducing is associated operates to discharge weft yarn guide rod.Then utilize spring that weft yarn guide rod is tilted weft yarn is moved to the position that the pin joint on weft yarn and cylinder closes.Along with the rotation of cylinder, weft yarn is wound on cylinder and is stored on cylinder.

In the disclosed equipment of open No.48-42164 of quoting in the above, wherein weft yarn guide rod is because the thrust of spring tilts and returns according to solenoidal operation, solenoid response is in the wefting insertion signal from card and the operated moment easily changes, and the length that is therefore stored in the weft yarn on cylinder also may change.In addition the weft yarn guide rod tilting due to the thrust of spring, may engage with the unstable of pin on cylinder because the impact such as factors such as vibrations causes weft yarn between the on-stream period of loom.This problem especially occur in loom with at a high speed for example with 600 to 700rpm or the situation of larger speed running under.In the disclosed equipment of open No.48-42164, if weft yarn guide rod is by directly tilting and return such as mechanical mechanisms such as cams, so this problem can be resolved, but need to provide a plurality of different mechanisms for each wefting insertion decorative pattern, this makes to be difficult to meet various wefting insertion decorative pattern demands.

Summary of the invention

The present invention is devoted to provide the equipment of the storage latitude in a kind of loom, and it allows the positive engagement of the pin on weft yarn and cylinder, and meets the demand of various wefting insertion decorative patterns.

According to an aspect of the present invention, the storage latitude equipment in a kind of loom, comprises a plurality of latitude portions that supply, and weft yarn is respectively from described a plurality of for the extraction of latitude portions; Single swing roller, it is equipped with from described cylinder and stretches out the movable pin for engaging with described weft yarn; And folder latitude portion, can operate when wefting insertion starts, to discharge described weft yarn and when wefting insertion finishes, keep described weft yarn.Reel and be stored on described cylinder with the weft yarn that described pin joint closes.Described storage latitude equipment also comprises a plurality of weft yarn guide rods that can move towards the axis of described cylinder, for described weft yarn guide rod is moved so that the cam mechanism that described weft yarn and described pin joint close and for optionally limit a plurality of limiting mechanisms of the movement of each weft yarn guide rod in response to the signal of telecommunication towards the axis of described cylinder.

Description below in conjunction with accompanying drawing by the example illustration principle of the invention, it is clear that other aspects of the present invention and advantage will become.

Accompanying drawing explanation

Fig. 1 is the plane of the storage latitude equipment in air-jet loom;

Fig. 2 is the front view of the cam of storage latitude equipment;

The cutaway view that Fig. 3 is the cam cut open along line III-III of Fig. 2;

Fig. 4 is the schematic diagram of the operation of the cam follower of explanation cam and association thereof;

Fig. 5 is the plane similar to Fig. 1, but the storage latitude mode of explanation before wefting insertion;

Fig. 6 is the plane similar to Fig. 1, but the storage latitude mode of explanation during wefting insertion; And

The figure on opportunity that Fig. 7 is the relation between explanation storage latitude and wefting insertion.

The specific embodiment

Below with reference to Fig. 1, to Fig. 7, embodiments of the invention are described.With reference to figure 1, the storage latitude equipment of this embodiment is suitable for being used in polychrome air-jet loom, and comprises for two

nozzles

1,2 of wefting insertion and two confession latitude portions 3,4 that are associated thereof.For the weft yarn of being introduced by

nozzle

1,2, by Y1, Y2, represented respectively.By the folder latitude portion 5 such as the operation of the mechanical mechanism such as cam and two weft yarn guide parts 6,7 of being arranged on the opposite side of folder latitude portion 5, be arranged on the upstream of nozzle 1.In a similar manner, folder latitude portion 8 and the weft

yarn guide part

9,10 of opposite side that is arranged on folder latitude portion 8 are arranged on the upstream of nozzle 2.

Folder latitude portion

5,8 can operate and when wefting insertion starts, discharge weft yarn Y1, Y2, and when wefting insertion finishes, keeps weft yarn Y1, Y2.Be adjacent to be respectively arranged with

tensioner

11,12 for latitude portion 3,4, each has the structure that weft yarn guide part is supported by leaf spring tensioner 11,12.From the weft yarn Y1, the Y2 that extract out for latitude portion 3,4, be fed to

nozzle

1,2, simultaneously by

tensioner

11,12 and 6,7,9,10 guiding of weft yarn guide part and stretching.

At the weft

yarn guide rod

15,16 that is provided with single swing roller 13, the cam 14 that can rotate for latitude portion 3,4 and folder between

latitude portion

5,8 and can be respectively operates explicitly with confession latitude portion 3,4 together with cylinder 13.The shape that cylinder 13 is frustum of a cone, and by the power from transmitting by gear 17 and hollow rotating shaft 18 such as driving mechanisms such as motor (not shown), the direction of arrow along Fig. 1 is rotated.In rotating shaft 18 and cylinder 13, receive and have bar 19, with can be as shown in double-head arrow along the axis X back and forth movement of cylinder 13.Bar 19 is by driving back and forth movement such as mechanical mechanisms such as cam (not shown).

L shaped linking part 20 is installed pivotally in cylinder 13.One end of L shaped linking part 20 is connected to the end of bar 19.The other end of L shaped linking part 20 forms pin 21, and it can move into cylinder 13 neutralizations and move away from cylinder 13.When bar 19 moves along axis X to a direction, pin 21 moves away from cylinder 13, and when bar 19 moves round about along axis X, pin 21 moves back in cylinder 13.Bar 19, L shaped linking part 20 and pin 21 rotate integratedly with cylinder 13, allow pin 21 to move in cylinder 13 and from cylinder 13 simultaneously and move away.

Referring to figs. 2 and 3, cam 14 is provided by the plate cam 22 with centre bore 23, and rotating shaft 18 inserts regularly by centre bore 23.Plate cam 22 has the cam face that comprises high portion 24 and lower curtate 25 in its periphery.A part with least radius for lower curtate 25 forms the cam path 27 being limited by the homocentric arcwall 26 of the cam face with plate cam 22.Plate cam 22 has for the portion that enters 28 of cam path 27 and exits portion 29.When the direction of rotation along plate cam 22 is observed, enter the front side that portion 28 is positioned at lower curtate 25, and exit the rear side that portion 29 is positioned at lower curtate 25.Enter portion 28 and exit portion 29 and form by cutting away a part for the periphery of plate cam 22.

Weft

yarn guide rod

15,16 is identical in configuration aspects, but different aspect phase place, or at them with respect to different aspect the position of cylinder 13.Mutual component for weft

yarn guide rod

15,16 is used identical reference marker.Therefore, in the following description, weft yarn guide rod 15 will only be described.Weft yarn guide rod 15 comprises perpendicular to the axis X of cylinder 13 and the vertical arm 30 extending towards cam 14 and at the radially outward position of the outer surface 13A of cylinder 13 and the horizontal arm 31 that axis X is extended abreast.These two arms the 30, the 31st, one to form L shaped shape substantially.Weft yarn guide rod 15 can be towards moving with the axis X away from cylinder 13.By spring 35, the axis X towards cylinder 13 promotes weft yarn guide rod 15.

Vertically arm 30 has the cam follower 32 that can contact with the cam face of plate cam 22 in its lower end.Horizontal arm 31 has orientates the pressure latitude device 33 that becomes to face relation with the outer surface 13A of cylinder 13 as.When weft yarn guide rod 15 is arranged in its stroke away from the position of the axis X of cylinder 13, the position of pressing latitude device 33 to be arranged in a little the imaginary line by Fig. 1 away from weft yarn Y1 to represent (referring to the weft yarn guide rod 16 of Fig. 1 and the relation between weft yarn Y2).In this position of weft yarn guide rod 15, do not have weft yarn Y1 to be wound on cylinder 13.Cam 14, spring 35 and cam follower 32 coordinate the cam mechanism that is formed for making weft yarn guide rod 15 to move towards the axis X of cylinder 13.

Be adjacent to be provided with the vertical arm 30 of weft yarn guide rod 15 solenoid 34 that is equivalent to limiting mechanism of the present invention.Solenoid 34 is used for keeping and release weft yarn guide rod 15 in response to the command signal of carrying out self-controller (not shown).Particularly, weft yarn guide rod 15 is stretched with solenoid 34 mode engaging with vertical arm 30 in response to the command signal of carrying out self-controller and is held, so that weft yarn guide rod 15 remains on the position away from the axis X of cylinder 13.Weft yarn guide rod 15 is in response to coming the command signal of self-controller to be released with solenoid 34 and the mode that vertically arm 30 departs from.

The program of the wefting insertion decorative pattern of controller storage based on fabric tissue or weave pattern making.According to selected wefting insertion decorative pattern, controller send command signal to

nozzle

1,2,

folder latitude portion

5,8, sell 21 and solenoid 34 to control the operation of these parts.In response to the signal of telecommunication that carrys out self-controller, operate solenoid 34 optionally limits weft yarn guide rod 15 towards the movement of the axis X of cylinder 13.Should be noted that reference symbol T, W and K in Fig. 1 represent respectively warp thread, fabric and weft yarn cutting equipment.

Below with reference to Fig. 1 and Fig. 4, to Fig. 7, describe according to the operation of storage latitude equipment of the present invention.In the present embodiment, as shown in Figure 7, first introduce weft yarn Y1, and then introduce weft yarn Y2.Between the on-stream period of loom, before introducing weft yarn Y1, on cylinder 13, store in advance the weft yarn Y1 of predetermined length.In order to store weft yarn Y1, bar 19 is in response to coming the command signal of self-controller to be moved right in Fig. 1 by driving mechanism (not shown), so that the pin 21 outer surface 13A from cylinder 13 stretch out for engaging with weft yarn Y1.Meanwhile, solenoid 34 is in response to command signal and vertically arm 30 disengagings, to discharge vertical arm 30 or weft yarn guide rod 15.

When being installed to the cam follower 32 of weft yarn guide rod 15 while arriving the cam face of the portion that enters 28 of plate cams 22, weft yarn guide rod 15 is moved towards the axis X of cylinder 13 in directed along cam face by the thrust of spring 35.By this motion of weft yarn guide rod 15, press latitude device 33 to realize to contact with weft yarn Y1 and then by weft yarn Y1 the position shown in the imaginary line from Fig. 1 towards the outer surface 13A of cylinder 13, move.Because cam follower 32 is pressed against the cam face of the portion of entering 28 as shown in the reference marker 32A in Fig. 4, weft yarn guide rod 15 moves along the cam face that enters portion 28.Enter portion 28 have along the circumferential measurement of plate cam 22 compared with big-length, and only need solenoid 34 to discharge weft yarn guide rod 15 in cam follower 32 enters the scope of portion 28, this has improved the flexibility of determining the moment that solenoid 34 is operated.In addition, such portion that enters 28 is also used for absorption operation solenoid 34 and discharges the deviation in the moment of weft yarn guide rod 15.

Cam follower 32 as shown in the reference marker 32B as in Fig. 4 enters the moment place of cam path 27, and weft yarn guide rod 15 moves to by weft yarn Y1 the position that the solid line in Fig. 1 represents, in this position, weft yarn Y1 can engage with pin 21.The movement of weft yarn guide rod 15 is stably guided by cam path 27 as shown in the reference marker 32C in Fig. 4, and is not subject to the impact such as the factors such as vibration of loom, and this allows the positive engagement of weft yarn Y1 and pin 21, to start the coiling of weft yarn Y1 on cylinder 13.Cam path 27 is used for maintaining after the axis X of cylinder 13 moves at weft yarn guide rod 15 position of cam follower 32.

Then cam follower 32 is mobile as shown in the reference marker 32D in Fig. 4 in cam path 27, and then arrives the portion 29 that exits.As shown in the reference marker 32E in Fig. 4, weft yarn guide rod 15 moves away from the axis X of cylinder 13 together with exiting the cam face of portion 29.

Arrive the high portion 24 of cam face of plate cam 22 as shown in reference marker 32F at cam follower 32 after, as shown in the solid line in Fig. 6, weft yarn guide rod 15 remains on the position away from the axis X of cylinder 13 by high portion 24.In response to the command signal of carrying out self-controller, operate solenoid 34 engages with the vertical arm 30 of weft yarn guide rod 15, to limit the movement of vertical arm 30, and therefore weft yarn guide rod 15 is remained on for follow-up weft yarn reel and store away from its initial position of axis X.

When finishing to be less than the storage of weft yarn Y1 of predetermined length of shot length, as shown in the imaginary line in Fig. 5, pin 21 moves back in cylinder 13.Meanwhile, weft yarn guide rod 15 discharges weft yarn Y1, and the weft yarn Y1 being wound on cylinder 13 is extracted out and is incorporated into the shed open of warp thread T from cylinder 13 by nozzle 1.

As shown in Figure 6, after pin 21 moves in cylinder 13, owing to being retained in weft yarn Y1 on cylinder 13 and the friction between the outer surface 13A of cylinder 13, so extract out simultaneously by nozzle 1 and from cylinder 13 with weft yarn Y1, weft yarn Y1 is from extracting out and be wound on cylinder 13 for latitude portion 3.Pin was defined as in 21 moment that move back in cylinder 13, and pin 21 is corresponding with the length of the length that is wound on the weft yarn Y1 on cylinder 13 afterwards and a shot with weft yarn Y1 before moving back in cylinder 13.The moment place that operation folder latitude portion 5 has been introduced by nozzle 1 completely at the weft yarn Y1 of a shot keeps weft yarn Y1.

Subsequently, carry out as shown in Figure 7 the introducing of weft yarn Y2.Before weft yarn Y2 is introduced by nozzle 2, utilize weft yarn guide rod 16 that weft yarn Y2 is reeled and is stored on cylinder 13.When solenoid 34 discharges weft yarn guide rod 16, weft yarn Y2 is directed and then engage with pin 21 towards the outer surface 13A of cylinder 13.The thrust of spring 35 coordinates to control the movement of the cam follower 32 of weft yarn guide rod 16 with cam 14, this has stablized the movement of pressing latitude device 33 guiding weft yarn Y2, thereby makes weft yarn Y2 and pin 21 positive engagement.By the coiling of weft yarn guide rod 15 generations and the situation of storage, similarly carry out coiling and the storage of weft yarn Y2 on cylinder 13 with weft yarn Y1, and by the description of omitting the coiling of weft yarn Y2 and storing mode.

The storage latitude equipment of above-described embodiment provides following advantages.

(1) in the above-described embodiments, wherein weft yarn Y1, Y2 are undertaken by the cam mechanism that comprises cam 14, cam follower 32 and spring 35 by the guiding of weft

yarn guide rod

15,16, and any deviation on operation opportunity of solenoid 34 engages with pin 21 weft yarn Y1, Y2 and opportunity of discharging from pin 21 exerts an influence hardly.Particularly, comprise cam path 27, enter portion 28 and exit the cam 14 permission weft

yarn guide rods

15,16 of portion 29 with respect to the level and smooth and correct movement of cylinder 13, thereby produce the simplified structure of storage latitude equipment.And, by the use of the cam mechanism that can operate in response to the solenoid 34 of signal of telecommunication operation, allow optionally to limit the movement of weft

yarn guide rod

15,16, thereby meet the demand of various wefting insertion decorative patterns.

(2) cam follower 32 moves in cam path 27 and by exiting portion 29 and moves away cam path 27 by entering portion 28.Enter arranging of portion 28 and allow to improve set the free degree on operation opportunity of solenoid 24.The arranging of cam path 27 stablized and pressed the movement of latitude device 33 and therefore stablized the guiding of weft yarn Y1, Y2, thus prevent weft yarn Y1, Y2 that weft yarn Y1, Y2 cause due to the vibration of loom etc. spring and from pin 21 separation.

(3) at the weft yarn Y1(Y2 of the length of a shot) be wound on the outer surface 13A of cylinder 13 upper before, pin 21 discharges weft yarn Y1(Y2).Pin 21 discharges weft yarn Y1(Y2) the moment be defined as pin 21 and discharge weft yarn Y1(Y2) before with the weft yarn Y1(Y2 on cylinder 13 that is wound on afterwards) length with weft yarn Y1(Y2) the length of a shot corresponding, with the weft yarn Y1(Y2 in a shot) be wound on cylinder 13 after 21 situations about moving back in cylinder 13 of selling compare, this is favourable for high-speed weaving machine running.

Be appreciated that the present invention is not restricted to the above embodiments, but without departing from the present invention, the present invention can with as below the variety of way of example change.

(1) cam 14 can be provided by the plate cam without the cam path of 27 in above-described embodiment for example, and can be provided by the plane cam or the solid cam that are different from plate cam.

(2), in cam mechanism, spring 35 can be replaced by any other active drive mechanism.As long as weft

yarn guide rod

15,16 for example has 32 cam follower and 33 pressure latitude device for example, weft

yarn guide rod

15,16 can have any other suitable shape and mechanism.

(3) can not be restricted to can be in response to the solenoid 34 of signal of telecommunication operation for limiting mechanism of the present invention, but can use air cylinder for example and for the electromagnetic valve of controlling this air cylinder as limiting mechanism.

(4) mechanically operated pin 21 can be replaced by any electric or Electromagnetically-operating pin.

(5) pin 21 is not restricted to the mechanism that the pin 21 that is conventionally arranged on cylinder 13 inside moves away cylinder 13.Alternatively, the pin 21 that is conventionally arranged on cylinder 13 outsides can move in cylinder 13.

(6) the present invention not only can be applied to as introduced in the case of the above embodiments for example loom of two types of weft yarns of Y1, Y2, and can be applied to introduce three kinds or the loom of more kinds of weft yarns of identical or different type.

(7) bar 19 can be provided by the mechanism of any electric operation.

(8) can be set to, on the outer surface 13A at the storing weft threads of length with a shot at cylinder 13 after, pin 21 moves in cylinder 13.

(9) the present invention not only can be applied to air-jet loom, and can be applied to introduce step by step the loom of any other type of the weft yarn of predetermined length, for example water jet looms, Rapier looms and gripper shuttle loom.

Claims

1. the storage latitude equipment in loom, comprising:

A plurality of for latitude portion, weft yarn is respectively from described a plurality of for the extraction of latitude portion;

Single swing roller, is equipped with from described cylinder and stretches out the movable pin for engaging with described weft yarn; And

Folder latitude portion, can operate when wefting insertion starts, to discharge described weft yarn and when wefting insertion finishes, keep described weft yarn,

The weft yarn wherein closing with described pin joint is reeled and is stored on described cylinder,

It is characterized in that, described storage latitude equipment also comprises

A plurality of weft yarn guide rods that can move towards the axis of described cylinder;

For described weft yarn guide rod is moved so that the cam mechanism that described weft yarn and described pin joint close towards the axis of described cylinder; And

For optionally limit a plurality of limiting mechanisms of the movement of each weft yarn guide rod in response to the signal of telecommunication.

2. storage latitude equipment according to claim 1, wherein each limiting mechanism comprises for keeping described weft yarn guide rod away from the solenoid of described cylinder, described cam mechanism comprises the cam follower that promotes the spring of described weft yarn guide rod, the cam that can rotate and be installed to described weft yarn guide rod and contact with described cam together with described cylinder for the axis towards described cylinder, and described cam has for maintaining the cam path of the position of described cam follower at described weft yarn guide rod after the axis of described cylinder moves.

3. storage latitude equipment according to claim 2, wherein said cam has for the portion that enters of described cam path and exits portion, described cam follower moves in described cam path by the described portion of entering, and moves away described cam path by the described portion of exiting.

4. according to the storage latitude equipment described in claim 1 to 3 any one, wherein said pin discharged described weft yarn before the weft yarn of shot length is wound on described cylinder, the moment that described pin discharges described weft yarn is defined as, and described pin discharges before described weft yarn that to be wound on the length of length on described cylinder and weft yarn with a shot corresponding with described weft yarn afterwards.