CN1092035A

CN1092035A - The conveyer that loom is used

Info

Publication number: CN1092035A
Application number: CN93120245A
Authority: CN
Inventors: 卡罗·葆纳西纳
Original assignee: INTERPATENT Ltd
Current assignee: Interpatents Ltd; INTERPATENT Ltd
Priority date: 1992-10-23
Filing date: 1993-10-23
Publication date: 1994-09-14
Also published as: CZ104095A3; HU9501149D0; WO1994010364A2; BR9307383A; EP0665909A1; ITCO920013A1; RU95112492A; KR950704555A; ITCO920013A0; IT1260699B; AU5338294A; WO1994010364A3

Abstract

The conveyer of one loom comprises: at least one be fixed in flexible back and forth with on weft carrier and a guidance device, being used for steering tape is parallel to reed and passes race, this guidance device comprises: number of C-shaped hooks is installed on the slay of loom, is positioned at the place ahead of reed, and its opening edge is facing to reed; Band moves in the inside of hook fully, and on a part of length, it has a fin at least, matches towards the direction protrusion of reed and with the opening edge of hook, be with best " floating " in hook, and by a protruding rigidity forwards be fixed in on bar and the mutual co-operation of designating system; Positive type weft carrier projection can be fixed on the slay with rolling over, is positioned at the hook back, the front of reed, thereby not can with the band interference.

Description

The conveyer that loom is used

The present invention relates to a kind of grass-hopper of loom, pass the device of the race of loom especially for the one or more weft carriers of guiding back and forth.

Continuously weft knitting machines includes only a pair of opposite weft carrier-be respectively substantially and send the yarn weft carrier and retract weft carrier-relative with elastomeric band respectively two ends and become installation integrally, band passes race and moves back and forth, by feeding perpendicular direction motion, reciprocating by operation miniature gears driving separately with warp thread.Weft carrier passes with the race that parallel is set up from heald like this, in order that form fabric at slay and reed downstream direction, fabric is twisted on the beam of a loom then.For supporting strap passes race, the special feature of known feedway is a pair of relative guide element, and between these two guide elements, band longitudinal edge vis-a-vis is guided.

The known device of above mentioning of that class is unreliable always, because carry the violent stress of reverse generation of the orbit period of cercoids, with the small size of high friction velocity and guiding face, all these all can produce between band and warp thread and squeeze card and/or interference, thereby often produce broken yarn.

An object of the present invention is to provide a kind of a kind of feedway that is substantially the above-mentioned type, but design has overcome above-mentioned defective, particularly produce economical, high reliability, and the loom that this device is installed has been given the alerting ability of height.

According to the present invention, the conveyer that provides a kind of loom to use, comprise at least one be installed in elastomeric reciprocating with on weft carrier; Be used to guide slat and be substantially level and be parallel to the guidance device that passes race in the plane of reed one, it is characterized by:

ⅰ) this guidance device comprises number of C-shape hook, is installed on the slay of loom, is positioned at the place ahead of reed, and its opening edge is facing to reed; And

(ⅱ) band moves in the inside of hook fully, and at least along the part of passing race, its section ratio is little perpendicular to the inside dimension of the hook of plane of movement, identical with the inside dimension that is parallel to plane of movement of hook, thereby, when bringing swivel motion, band seamlessly contacts with the first relative inside face of hook respectively substantially and is guided, be each hook opening edge and with opening edge limit vis-a-vis, and never can contact, i.e. the limit parallel of hook with plane of movement with each second inside face of hook.

In addition, in passing the band portion of race, there is one section at least, has a fin, match with the opening edge of hook between moving period towards the direction protrusion of reed and at band.

In this way, warp thread is walked the danger of not held under the arm between the band and the guide surface of hook, even the bar band is just in case impact also harmless sharp.

According to a preferred embodiment of the present invention, by straight shaft-like device of roughly being of a protruding rigidity forward, load onto weft carrier, this device and take the lead enemy's attaching seamlessly to band; This bar comprises a director, the interior shape of its transversal surface and hook and measure-alike, and be used for separately warp thread, make it to be projected into device outside the hook towards the direction of reed, to prevent the interference between director and the warp thread, this device nationality helps the mode of a flange to become binding integrally with director, and this flange design becomes to be suitable for seamlessly passing substantially the opening edge of each hook.

In this way, on the section of the total length that equals it, replace flexible belt with bar, this bar is guided in the zero-lash substantially mode in inside and contacts with all inside faces of hook, depart from the plane of movement that to prevent just in case impact band when violent, simultaneously also prevent any interference in race between director and warp thread, thereby prevented to hold under the arm yarn and/or broken yarn.

According to another feature of the present invention, the director of bar can be installed to with changeing and be with, and with can be quick, easily changes and carries a cercoids, during particularly from the extremely long-pending formula weft carrier of the inactive weft carrier of a negative type weft carrier-promptly have and conv-convert to.For this situation, this device has comprised a planar graph protruding component that adds in addition, the control lever that is used for extremely long-pending formula folder, this part can be installed on the slay with changeing, in the back of hook but in the front of reed, adopt an extremely long-pending formula to carry cercoids rapidly to operate so that can make the negative type of performance carry cercoids, and do not carry the danger of cercoids operating mechanism and band interference, nationality help this part individually with the weft carrier combined action or with the combined action of bar, weft carrier is installed to by bar and is with.

Other purposes of the present invention and advantage disclose in the description with the embodiment of hereinafter a preferred indefiniteness, accompanying drawing as a reference, accompanying drawing is:

Fig. 1 represents the sketch of the main piece of a fabric;

Fig. 2 represents the forward transparent view according to device of the present invention;

The high range view of the part of the device in Fig. 3, the 4 and 5 difference presentation graphs 2;

Fig. 6 and 7 expressions are according to the work scheme drawing of device of the present invention;

Fig. 8 and 9 expressions offer the transition cases from negative to positive weft carrier of installing among Fig. 2.

Referring to Fig. 1, mean the feeding direction of relative warp thread and fabric here with hereinafter term " preceding " and " back ", represent by arrow A.Machine among Fig. 1 comprises that once axle 1 warp thread 3 is emitted from thin axle 1 by a thread-carrier 2; Each heald 4 is used for separately, and warp thread 3 also forms the race that allows weft yarn 5 pass; Comprise a slay 8 and a reed 9 with a known tilter, be used for the weft yarn of compacting importing and form fabric 6 that the latter is rolled onto on the cloth beam 7 with known mode in the downstream of race.

Weft yarn 5 is used a feedway 10(Fig. 2,6 and 7 in known manner) import race, be transferred device 10 is withdrawn into race from a ryce side again in known manner.In this example, device 10 comprises that is led a hook 11(Fig. 3 and 4), be positioned at race, over against the direction A of vertical warps 3, and wait the gap that (for example separately 20-30 millimeter) is set, at last and flexible belt 12(Fig. 3 and 5); Direction by arrow B (Fig. 2) seesaws, and is installed in to have a weft carrier 14(in this example, is 13 places, a termination of a negative type weft carrier, is used to retract weft yarn 5.

Make with the known material of 12 usefulness (elastic body that the fiber that for example a kind of usefulness is suitable and/or the metal of insertion strengthen), some holes 15 are arranged on it, an end (not shown) relative with termination 13 is meshed with a known miniature gears (not shown), is with 12 to be driven by miniature gears.In this example, weft carrier 14(one oppositely retracts folder) be with the only about half way of 12 guiding along race, enter what is called " conversion " district, weft yarn 5 is lived by a corresponding known weft carrier [carrying gripper] (not shown) band there, and the latter is the part of constituent apparatus 10 also.Above-mentioned weft carrier according to weft carrier 14 same modes be installed in with 12 identical one be with, and be driven symmetrically according to same mode, just direction is opposite, this weft carrier does not show for simplicity, because for purpose of the present invention, hereinafter about with 12 and the explanation of weft carrier 14 also be fit to other weft carriers and its operation tape.

Therefore, according to above be basic, in the race district, with 12 be positioned at without barrier with translation in a plane of movement that is essentially level, be parallel to direction A; And that hook 11 and slay 8 are installed is in aggregates, towards reed 9(Fig. 6 and 7) below (being the downstream of relative direction A), thereby be with 12 to be parallel to reed 9 translations.

According to the present invention, hook 11 is C shapes, and opening is towards reed 9; Each hook 11(Fig. 4) be the boundary by a continuous vertical edges 17, facing to opening edge 16; And two be respectively the T﹠B limit 18 for the boundary.In each hook 11, the boundary of top is respectively contact and circular bead surface; Horizontal top surface and

bottom surface

19 and 20; With vertical surface 21 facing to opening edge 16.Opening edge 16 is the boundary with two first contacts and circular bead surface 22 again conversely, and is facing to surface 21, adjacent with

surface

19 and 20 respectively.Band 12(Fig. 5) section is identical with the duct shape that each hook 11 is limited, (in this example, being a rectangle substantially), and have a segment length to cover the part that will pass the band of race at least, protrude an appendix or a flange 25 in the horizontal, stretch out towards reed.

Be with 12 in hook 11, " to float " fully and move according to the present invention (Fig. 3).In particular,, promptly have the part of appendix 25 at least along the part of passing race, littler with 12 vertical dimensions (promptly from measuring) than the inside dimension of hook 11 perpendicular to the plane of moving at section.When being with 12 to move around, match with the opening edge 16 of hook 11 with its flange 25, thereby with 12 substantially seamlessly at vis-a-vis inside

face

21,22 and surperficial 23(perpendicular to the former) between contact, but never contact with the horizontal inside

face

19,20 that is parallel to plane of motion.

Referring to Fig. 2, with 12 by a rigidity be that straight " bar " shape element 30 is installed together with weft carrier 14 substantially, rod element 30 protrudes forward, and be with 12 bindings seamlessly.Bar 30 comprises a director 31, and is with 12 coaxially, thereby replaces being with 12, matches with hook 11 in its total length.But, and be with 12 differently, the section of director 31 is identical with the interior shape and size of hook 11, therefore, seamlessly moves in hook 11 substantially, contacts with the

surface

21,22 and the

surface

19,20 of each hook 11.

Bar 30 also comprises a vertical flange 33, extroversion towards the hook 11 of reed 9 is protruded, and integrally links with director 31 by a flange 34, is designed to be suitable for seamlessly passing substantially the opening edge 16 of each hook, and replace with 12 earthworm protruding 25, guiding between surface 23.At transversal surface, vertical with plane of movement (Fig. 7) with 12, flange 33 is bigger and phase down towards the direction of reed 9 than the inside dimension of hook 11.

Therefore, in actual applications, according to feedway motion of the present invention steadily, do not block yarn and broken yarn.In fact, in more heavily stressed area, when passing hook 11, flexible belt 12 replaces with director 31 or bar 30, the latter is owing to be rigidity, and seamlessly guided, can be stood peak load better, this load by weft carrier 14 before commutation rapid deceleration/decel and cause.But, flange 33 can separate warp thread 3(Fig. 7), avoided warp thread and the director 31 that in hook 11, moves between any possibility of interfering; Simultaneously by with any interference (Fig. 6) of 12 race districts that occupy and warp thread 3 also by with 12 and limit 18 between the gap prevent.

Bar 30 preferably can change be with 12 attachings, by all coming attaching at the parts that move the inside of hook 11.In particular, the shape of director 31 is made: its part and end 13 overlap joint with 12 suitable attenuates, both are in the mode of tightening member, for example screw 40(Fig. 2) binding, be installed in pass with 12 and the groove of director 31 in.Weft carrier 14 also can be installed on the bar 30 with any known mode (shown in Fig. 2 dotted line) with changeing, perhaps is processed into a single-piece with it.For first kind of situation, because will stand the element of slip stress, thereby what be vulnerable to abrasion is bar 30, and above-mentioned arrangement can avoid often changing weft carrier 14.Also have, weft carrier and band are linked, can reduce overbalance (because of quality of weft carrier) by bar 30, and, add 11 the design of rising to the bait, reduced wearing and tearing by means of the size of guide surface.

At last, for two kinds of situations, disconnectable weft carrier is installed for band and can be easily amassed property weft carrier device to same feedway from a kind of negative type weft carrier conversion poling.Referring to Fig. 8 and 9, in fact, a kind of known planar graph protruding component 41(that can randomly comprise the known bar (not shown) that is used for extremely long-pending formula weft carrier 42 according to device 10 of the present invention is processed into a single-piece, or be processed into several parts that separate, only being used for operating the occasion of the opening of weft carrier) forward weft carrier 42 is installed to the limit of bar, and outstanding from the director 31 of a bar or a similar bar 30, stretch towards the direction of reed 9.As shown in Figure 8, graphic elements 41 will be made: can be attached on the slay 8, at the rear of hook 11 with changeing, but in the place ahead of reed 9, therefore will not be with 12 to interfere, although to slide and known mode is moved with band, weft carrier 42 and/or each bar are shown among Fig. 9.

Fig. 9 shows a transversal surface at transition zone feedway 10, and except extremely long-pending formula is sent yarn weft carrier 42, the extremely long-pending formula that also shows is drawn weft carrier 43, also with graphic elements 41 cooperations, and be installed to facing to graphic band in the mode identical with weft carrier 42, and identical with it one be with on 12, and (known) control lever 44, is used to open weft carrier.Such as can be seen, the conversion of the important device 10 of this machine not only soon but also simple, only comprise and change yarn weft carrier (the same rod element 30 separately in limit changes together as far as possible), with adorn/tear open element 41, the latter has a mounting plate 46, has groove 45, is used for to hook 11 leaving spaces, and suitable dismounting tightening member, for example screw 47.This makes converting machine only use limited floor time, thereby obtains a kind of real flexible means.

Claims

1, a kind of loom conveyer, comprise at least one be installed to one elastomeric reciprocating with on weft carrier and a guidance device, be used for steering tape and pass race and be parallel to reed on the plane of an approximate horizontal, it is characterized by:

ⅰ) this guidance device comprises that number of C-shape hook is installed on the slay of loom, is positioned at the place ahead of reed, and its opening edge is facing to reed; And

ⅱ) band moves in the inside of hook fully, and at least along the part of passing race, its section ratio is little perpendicular to the inside dimension of the hook of plane of movement, identical with the inside dimension that is parallel to plane of movement of hook, thereby, when bringing swivel motion, band seamlessly contacts with the first relative inside face of hook respectively substantially and is guided, be each hook opening edge and with opening edge limit vis-a-vis, and never contact, i.e. the limit parallel of hook with plane of movement with each second inside face of hook.

2, a kind of conveyer as claimed in claim 1 is characterized by: have one section at least in passing the band portion of race, have a fin, match with the opening edge of hook between moving period towards the direction protrusion of reed and at band.

3, a kind of conveyer as claimed in claim 2 is characterized by:

By straight shaft-like device of roughly being of a protruding rigidity forward, load onto weft carrier to band, this device with take the lead enemy's attaching seamlessly, above-mentioned bar comprises a guide body, the interior shape of its section and hook and measure-alike, and because the result of band motion, this bar also is guided, in zero-lash mode roughly, between first and second vis-a-vis the inside faces of each hook.

4, a kind of conveyer as claimed in claim 3 is characterized by:

Above-mentioned bar also comprises warp thread separately and makes it and be projected into device outside the hook towards the direction of reed, interferes between director and the warp thread in order to preventing; The mode of said apparatus by a flange becomes integrally and is connected with director, and this flange design becomes to be suitable for seamlessly passing substantially the opening edge of each hook.

5, a kind of conveyer as claimed in claim 4 is characterized by: the director of bar is that disconnectable method with fastener is installed to and is with, and fastener is installed in the groove that passes the band and the body of rod, in the inside of other part, can move in the inside of hook.

6, as the described a kind of conveyer of any one claim of claim 3 to 5, it is characterized by: the weft yarn thread carrier is to be installed on the above-mentioned bar with changeing.

7, as one in each claim in the preamble described a kind of conveyer, it is characterized in that, it comprises that also is used for the planar graph male means (flat profiled shoulder element) that extremely long-pending formula is carried latitude bar (positive gripperrod), and can be able to be installed on the slay with changeing, angle sub-back, the front of reed, thus will not interfere with band, and only with above-mentioned weft carrier or above-mentioned bar co-operation.

8, a kind of loom conveyer, in fact as this paper with reference to accompanying drawing mediate a settlement the expression.