CS199439B1 - Synchro pulse apparatus actuated by verdol card for dobby control - Google Patents

Abstract

The force-transmission part of such a dobby contains, for each heald frame, a pair of hooks (4) arranged in one plane. Each hook (4) is assigned a double-armed lever (2) which is mounted pivotably on rods (1) and of which the pivoting out in one direction is caused by a spring (12), by the hook (4) and by a fixed support (5) and in the opposite direction is limited by a stop (3). Mounted on one arm (200) of the double-armed lever (2) is a pair of horizontal needles (8, 9), of which one needle (9) carries a sensing needle (18) of the new weft and is held by a straightedge (11) of the new weft, whilst the other horizontal needle (8) carries a sensing needle (17) of the old weft and is held by a straightedge (10) of the old weft. The horizontal needles (8, 9) are lifted by an auxiliary straightedge (15). The double-armed levers (2) are blocked in their pivoted-out position by a retaining straightedge (16). As a result of this arrangement, an exchange of the functions on the straightedges (10, 11) is achieved during the return motion of the weaving machine, so that the sequence of movement is reversed relative to the original sequence of movement and consequently no additional rotation of the pulse device in the idling mode is necessary before restarting. <IMAGE>

Description

Existing leaf machines of the considered type, specifically according to MS. 156 301, are controlled by a pulse device, controlled by a power card or electromagnetically. The impulse device in these leaf machines comprises a pair of double-row levers mounted on parallel bars. Each of the two-arm arms then adjoins either the power card pins or one of the electromagnets controlled by the pattern card according to the embodiment.

The pulse device is non-synchronous. It has the disadvantage that, when reversing, for example, in search of a defective weft, it requires that the leaf machine performs an additional reverse rotation before the shed of the last weft clogged. After locating the defective weft, it is then necessary to perform one revolution in reverse in order to start the weaving machine before starting the weaving machine d. SUMMARY OF THE INVENTION It is an object of the present invention to provide a synchronous pulse device for sheet-metal machines, the force part of which comprises for each sheet a pair of hooks arranged in one plane. .

This is accomplished by an impulse device according to this invention, which 'is based mainly on the fact that each of the hooks is assigned dvouremenná lever which determines ^y s ^l cs ^s in the <3nom direction ^P dip ^{i K} n ^{e conn} evnen ^Star spring ^fo n ^y it is defined on its lower arm by said hook and the abutment in the opposite direction the stop istaveným ^{BC. to} the ^t he ^h orn him .rameni ^s., 'ter ^{the E} carries pivotably disposed ^of <3vojici horizontal needles, one of which carries a horizontal needle needle ohmatávací new attack and its claw is held by a spring · path. the ruler of the new weft, while the second horizontal needle. held by a spring in the path of the old weft ruler, whereby the horizontal needles ^and m ^p is built omocné ruler ^{pi? h} of its jack and ^the two-ply · ^p Akama ^Pr istaveno displaceable locking dextrorotatory ^p ro ^h refrigerati zablotavání .poloze in the deflected against a stop .

From a constructional point of view, it is advantageous that the two-arm levers are mounted on one plane on parallel bars above the hook.

YH ^{is the} day ^{when the} two-ply ^P and ^K m are parked arrive ⁱⁿ and rulers, 'for ease of assembly and disassembly of equipment synchronous pulse of the dobby. For reliable guidance of the gripping needles, it is preferable that the gripping needles are housed in the guides.

For better contact with the hook levers of the power part of the dobby is preferred kd ^YZ arm «ivouramenné burners ^{p p e k} řistaven hook power CESH l ^{i s} STOV his machine at a ^P eno ^{of kl} and ^dk ou.

Further above ^h from ^Y and features of the invention are ^p atm · of exemplary · ^{MPLEMENTATION} s ^y nc ^h Ronn ^¹H the im ^p u ^l sn ^¹H ZAR ^F DRIVING which is ^ ematicty representation ^of in the drawings, where the Fig . 1 view of the arrangement of the synchronous pulse · equipment and power mechanism dvouzdvižného dobby for actuating one ^{if T} in FIG. 2 two ^{of W} ORK ^p o ^l OHY ^CA with ^those synctoonního impulse ^and it furnished ^F DRIVING FIG. 1 controlling one of the hooks' power dvouzdvižného dobby mechanism and obr..3'rozvinutý circle diagram of the dobby and synchronously ^and it ⁱ m ^{p l} u sn ^¹H ZAR ^F DRIVING ^{according to} e in FIG. 1.

Dobby comprises, for each power mechanismus.ovládající one liter ^and ST <3nu unit nchronni ^{s h} o · ^p im ulsn ^{larger-Device I. P} ro greater clarity ^{BC p} is a ^{PI P} therein is aimed at tearing ^{MPLEMENTATION} .a function ^even one part which ^p ccording FIG.

¹ . ^{t l of manufacture} as Eve with synchronous wound ^t h ^ ulsního for ^{management í} a.je Zn ^and fragmentarily illustrated in FIG. 2.

At t ^yči · X (Fig. ^2), which: ^a. is his dance. EVN ^{p of F} ENA stored in tender ^and zorněných pos ^t RANIC ^{Ch i} m ^{p h} uLAN ZAR ^ ERA is pivotable. mounted two-arm ^Fri ka

2, the swing of the two-arm lever 2 is limited by the stop J attached to its upper arm 200. It is ^d on ^{the hook} 4. and · ^P o ^p evnou Erta 5 ^when s ^t Avenyu to its lower arm 201. It should be noted that the hook 4 and the fixed support and are. It is already part of the sheet-metal power mechanism 400 to which a sheet (not shown) is attached. Because the force mechanism 199439

40Q is known for example from Czechoslovak. No. 156 301, only the parts necessary to clarify the operation of the synchronous pulse device have been described.

When swinging a two-arm lever? there is no sliding friction on contact with the hook, its lower arm 201 is provided with a rotating roller 6.

For ease of assembly, a stop ruler 2 is provided to the upper arm 200 of the double-arm lever 2 as a mounting aid. The pivoting double-arm lever 2 is operated in one direction to the position indicated by the solid line in Fig. 2. which moves the cam-operated lever mechanism (not shown), on the other hand, using the new weft horizontal needle g of the new weft ruler 11, which also displaces the cam-operated lever mechanism (not shown). In the opposite direction to the position shown in dashed lines (Fig. 2), the two-arm lever 2 pivots by means of a tension spring 12 which is fixed at one end to the upper arm 200 of the two-arm lever 2 and anchored to the rod 121 by the other end. The pressure of the horizontal needles 8 and 2 towards the rulers 10 and 11 is secured by tension springs 13 and 14, which are each fixed at one end to the horizontal needles 8 and 6 and the other end. The horizontal needles 8 and 2 are raised against the action of the springs 13 and 14 by means of an auxiliary ruler 15 which controls a cam-operated lever mechanism (not shown). The position of the double-arm lever 2, indicated by a solid line in FIG. 2, to which the two-arm lever 2 is deflected by means of horizontal needles 8 and% rulers 10 and 11 is provided by a movable detent ruler 16 operated by a mechanism not shown. fuse.

At the end of the horizontal needle 8 of the old weft, a gripping needle 17 of the old weft is suspended, and at the end of the horizontal needle 8 of the new weft, a gripping needle 18 of the new weft is suspended. The gripping needles 17, 18 are slidably mounted in guides 20, 21 and 22 which guide them against the Verdol card 19. Said card 19 is rotated in a known manner, in this case clockwise, by means of a card roller 23 driven by a known but not crocodile mechanism. The second part according to FIG. 1 of the right side of the synchronous pulse device is functionally identical to the described left side of the synchronous pulse device and therefore the parts belonging to the right side are provided with functionally identical parts belonging to the left side of the synchronous pulse device. apostrophes.

As can be seen from FIG. 1, there are only slight differences between the right and left sides of the synchronous pulse device. These differences result from the fact that the hooks 4, д 'and the fixed supports g, 2' are arranged flush with the two double-arm levers 2, 2 * mounted on parallel bars 1, X *; so the two-arm lever 2 'on the right is at a greater distance from the Verdol

4 'cards 19 than the two-arm lever 2 on the left side of the pulse device. Horizontal needles 8 * 2 'old and new weft are therefore two-armed u'pravé ^p where ^Y 2' ^{s L} with de and on it. u ^{y l} wed as b ^y b ^yls para-NAL к horizontal needles · '8, two old and new weft left lever arm second' Ohmotávocí needles ^17, 18 on the horizontal needles 8/2 * old and new weft right two-armed the levers are moved relative to the gripping needles. 17, 18 · of the old and the new weft combustible ^d vouramenné levers · second · b ^{y was} about <3o ^holdings Each obvy ^to treat Provan verdolské cards 19. In order to simplify · are guides 20, 21 and 22nd Common ^p ro · all the feel ^and VAC ^and needles I ^7th 17 ?. 18th 18 * same ^e .As is ^p ole ^No n ^e for horizontal 'needles 8 2 * »2' ruler '15 for their lifting.

Function Left 'party saného ^p o ^p s ^y nchronního. im ^p u ^l sn ^s it from ^{management p} o ^dL e unrolled ^s him floe ^h b ^{s di-} and ^g ram cel ^E, it ^{if T} b ^s it STEO · Zn ^and arable ^eh of o ^b r. 3 this:

The gripping needles 17 and 18 are raised by the ruler 15 along with the horizontal needles 8 and 2 from the position shown in FIG. 2 according to the developed circular diagram (lane 2 in FIG. full line to half^En^E intermittent^Carou. When lifting^andwomen^and ohma ^ vocich is hel 17^pFig. 3^-) ver^dolská karta · 19^pclockwise^to by two^atlines, ie^to na ver^dols^{ké k}art^E AND⁹ '' po^d ohma'távac^and needle. 18 se^dwill stay^pO^d ohmot^andvac^and needle.¹²· Nej^poz^děher. after^pre^tverdol card damage. 19 (FIG. 2), the ruler 15 begins to return to its lower^poloh^y8 nazna^Cené^plnou^Carou по °^br.² o o n ^ í. returns from^pt i vo^dorov needles. . · 2 and rebound needles 12, 18th old about new. of the weft, while the tangled needle 18 of the new weft begins to feel the new escape * to the tangential needle 17 star^Ehim^att^tou old tues^to. After^dle model, '^který is on ver^dO^lsk^{é k}art^EListed in form^E · adjust^and he felt his needles^y AND⁷. 18 o z^andThey also include horizontal needles. 2 If, for example, there is a new weft in Verdol for the picking needle 18. card * 19 hole, gripping needle 18 will pass through it, therefore tooth 24. which is flattened by the horizontal needle 2 of the new weft ,,.

stands in the way right handed ^y 11 'new ^at TKU. ^p scatt ^{E TA d} eje ^when Z is a verdols ^Ké Korte ^'19 opening at ohmo ^ va ^ is ^H ly ¹⁷ Starko weft, the void in the hole verdolsk ^{E k} Orte way that the lugs ²⁵ on a ^d trued needle 2 also puts in the way the ruler of the century's weft. According to the developed circular ^{di g} and the frame (Fig. 3) is ^from evidencing the the ^STE · ^f earlier, not ^of the 'completed by ohmatávání own path · no. 9, the aorotor weft 10 (FIG. 2) moves along the track. 6 (FIG. 3). This .pravítko STORE 10 weft (Fig. 2) of the m ^s t ^{p whose} Ročov ^d co me before because ZDV-AC záznom podešlého te ^dy vast weft is ^Iz OU j e ^d PRIMARY ^BC oc ^h at ^YKL zoaretaván arresting prov ^ 16 ^, on completion. ohmotávánídokončí stroke first knife 10 of the old weft, in which 'p ^of IPO ^{ga d} propo forcing ohmotávocí Jehl ^y old ^account TKU only 17 e poae ^straight tooth .25 that b ^y lj ^Iz in the position of FIG. ² Christians ene ^{l e p} LNS ^BC es ďvouromennou constituted by two ^levers aretačnta ^'p rov 16th tkem ^{s p} o ^d e ^{p r} m ren barbs 25 rights ^Itk em 10' old weft form a clearance between the upper arm of the lever 200 · 2, of the detent 16. As provítkem it is clear from the developed diagram (Fig. 3),

199439, the locking ruler 16 (FIG. 2), track No. 8 (FIG. 3), moves upward to the dashed position. Before this stroke is completed, the ruler of the new weft 11 (Fig. 1 and the grooves No. 2 (Fig. 3) begins to operate and carries the horizontal needle of the new weft j) through the tooth 24 via a double-arm. lever 2 to the fully drawn position. As a result, the roll 6 of the two-arm lever 2 is so high above hook D that the hook 26 is rotated towards the knife 28 by means of the spring of the hook 27 and jumps onto the knife 28. According to the developed, circular diagram of track 2 (FIG. 3), the knife 28 (FIG. 2) then begins to move with the hook 4 in the lowered position, thereby raising the brake frame (not shown) via the force mechanism. Yet, before the knife 28 begins to move into the stroke, the old weft ruler 10 returns to its original position (dashed in FIG.). The new weft ruler 11 remains in the stroke until the locking ruler 16 returns to its original position in FIG. 2, fully drawn, thereby locking the upper arm 200 of the two-arm lever 2, and this lever remains deflected to return the hook 4 to the shift position. Only then does the ruler of the new weft return to the initial - dashed position. The latter two movements are clearly evident from the developed circular diagram (Fig. 3) of lanes 2 ^and 8. Thus, one cycle of shifting hook 4 (Fig. 2) to knife 28 has been described. As can be seen from the expanded circular diagram, 1, J, 4 ^and 5 (Fig. 3) as well as the right side of the double-lift leaf machine, whereby no re-gripping takes place. The synchronization of the pulse device consists in the fact that if we turn the leaf machine in the opposite direction, the functions of the new weft ruler 11 (Fig. 2) and the old weft ruler 10 are changed so that the sequence of movements is opposite to the original ones. This ensures that there is no delay in the impulse device when reversing (for example when searching for a Weft Weft). It should be further noted that a significant advantage of the synchronous pulse device according to the invention is that it operates within the rest period of the cams operating the blades 28 (Fig. 2) in the range of 45 ° to 75 ° of the path 1,2 (Fig. 3). relative to the loom from 90 ° to 150 ° (scale. 11, 12).

Claims (2)

Synchronous pulse device, controlled by a Verdol card for controlling a leaf machine, the force part of which comprises for each leaf a pair of hooks arranged in one plane, characterized in that each hook (4, 4 ') is assigned a two-arm lever (2, 2 '}, whose deflection in one direction by means of a spring (12, 12 ^z ) attached thereto is defined on its lower arm (201, 201') by said hook (4, 4 ') and a fixed support (5, 5' / a) in the opposite direction by a stop (3, 3 ') attached to its upper arm (200, 200) which carries a pivotably mounted pair of horizontal needles (8, β', 9, 9'j, one of which horizontal needle (9, 9 ') carries the gripping the new needle (18, 18 ') and its tooth (24, 24') is held by the spring (14, 14 ') in the path of the new weft ruler (11, 11'), while the second horizontal needle 199439 'la (8, в') carries a gripping needle (17, 17 ') of the old weft and is held by its tooth (25, 25 ^z ) by means of a spring (13, 13 *) in the path of the ruler (10, 10 ^z ) wherein an auxiliary ruler 15 for lifting them is provided to the horizontal needles (8, 8 /, 9, 9) and to the two-armed levers (2, 2 *) a movable one is provided to lock them in the deflected position at the stop (3, 3 *). locking ruler (16, 16 /) · 2. Synchronous pulse device according to claim 1, characterized in that the two-arm levers (2, 2 ^Z ) are mounted on one plane on parallel bars (1, 1 ') above the hooks (4, 4 *).