DE1510318A1 - Device for cleaning peeling knives on fiber-guiding cylinders of textile machines - Google Patents

Description

BK 96I8

Luwa AG. Zurich / Schwel-

Device for cleaning paring knives pulley-guiding cylinders of textile machines

The invention relates to a device for cleaning the side exposed to the disconnected material Paring knives on fiber-guiding cylinders of textile machines.

Such fiber-guiding cylinders, such as those at Squeeze rolls occur on cards, cover them while

009830/0184

The operation of these machines partly with a sticky mass which comes from squeezed out cotton seeds, among other things. Fibers, plugs and dust remain sticky on them Make the cylinder stick and must be removed when they do not affect the quality of the product of the textile machine in in our case should affect the fleece. Hlezu to become As a rule, special paring knives are used, which are pressed with a charfan "or.te, ulo ge ^ en the fiber-guiding cylinder, the sticky covering together with the fittings from the cylinder scrape off. However, the scraped-off material collects at least partially on the paring knife and can fall down over the back of the paring knife, for example in a Card on the fleece, the quality of which is severely impaired.

There is a known device in which about the to be cleaned Cylinder in the area of the paring knife, a blown air flow is guided, whereby the air flow is accelerated by reducing the flow cross-section, so that Material scraped off by the paring knife is to be removed pneumatically. With this device, however, it is not possible that Remove the sticky coating on the paring knife and any fibers trapped between the paring knife and cylinder so that there is more material accumulating inside and the £ knife in the course of operation always ineffective asmr wirö «<ia this can no longer be in contact with the cylinder.

009830/018 * _BAD0WQ1N AL

The invention has therefore made to report the task of the night Elle above and let characterized in data at least a resilient flap on an elongate, driven support body attached 1st of int rotatably 1st about an axis which is preferably arranged parallel and in a distance to the fibers leading cylinder In a section at right angles to the axis, the straight line connecting the axis of rotation and the cylinder axis cuts the leading cylinder in relation to the direction of rotation of the same in front of the point of contact of the paring knife on the cylinder, that the support body and cylinder are driven in the opposite direction and that the lobe is at least partially in the area of the mentioned intersection and temporarily under elastic tension is bent backwards in relation to the direction of rotation and that the paring knife lies in the range of motion of the flap.

Various exemplary embodiments are shown in the drawing the device according to the invention shown on a card. However, the invention is by no means restricted to cards. Show it:

Fig. 1 is a perspective view of the invention

Device, with some for a better overview 'Parts crawled away

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Pig. Figure 2 shows a cross section along the line II-II in Pig. I,

Flg. 3 shows a cross-section similar to Pig. 2, by a modified embodiment of the device according to the invention.

4 shows a cross section, similar to FIG. 2, through a further embodiment of the device according to the invention with a tubular wiper.

Fig. 5 is a section along the line V-V in Fig. 4, wherein

For a better overview, some parts have broken away.

In the drawing, 10 denotes the device according to the invention for cleaning the side of cut-off knives exposed to peeled material, which has a lengthwise elastic tube 11 which, for example , can consist of natural or synthetic rubber from the Buna-N group . A tab 12 is tangential, from the point of contact dor tangent in relation to the direction of rotation; to the rear, attached to the hollow 11 and stretches ur _(J (fähr around the deceit (.int-. '; PiJi (.lwneiifi ": rij dci; Rohres 31. Of particular importance lot, dnr.r ;; wJr; < : hen df-m coat de « Τ, γΙίηύατκ U urü dem Ι · ηρρ« η 1? a steady transfer follows. The L; ipj) en 12 is required from external material of the same kind as the pipe

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11. A zv.x'LU · ;; extends through the pipe II. Ruhr LY,
Since it is preferably made of aluminum or an angled non-Elcenmetail, the Durohmofiüor is smaller than Li; t uL: i der

Durchmoüüor den Kohin ;;} LL. DL «ends tiur> tubes« L? «Telun ltLg out of the raw IL, and alnd au a drLd. * Lh, 'i ütego 16 cries, biftistLgt, Die Drlde lh Int ilurc.h fichraiibon 24 am Abdec: lcbl'! ': H hü d« _; ; not dar ^ üutnl Lt '> n AbiKur.i in nLnov Karde tfic.itlgt. Dvu-wh Jichl It ^ o ? .J> Ln der hrlde lh l:; t dliiije Im rechtst ii V / Lrikul '. \\ ϊ Aoh / so de ^>stirrer; IL vcrudi I. ebb ar. A iiriuiroleiiMnt 150, in the form »! Incü PvoJires wit l ^:? r ..., r. oin ;; r surface line and dictanzleit von elnat.dor anc ^ arrangesiin üchLitafc'.n.ilgen inlet openings Jl let arranged parallel to demlthr il i.-nd distanced from the same. A peeling blade 36 is pressed on the cylinder 35 and with respect to the rotational direction dos cylinder 35 arranged after the point of contact between tube 11 and cylinder 35 connected or disconnected.

In Fig. 3 another attachment of the device is shown, where 17 * represents a rod corresponding to the tube 17. The web 16 has a flange 45, which from the cover 40, which covers the doffer of the card, to the tube 11.

In Figures 4 and 5 i & t again with 35 the cylinder to be cleaned referred to, which is distanced from the tube 11. A slot 50 runs along a surface line of the tube 11. On both

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The ends of the tubes are located in a v / alzonf ürmJ go Lncii.fcücke 51 »one end of which is exactly in the bore of the tube IL pai-ct. At the other end of the end piece 51, the diameter of the end piece 51 is small and that the tube has a cylindrical shape. Hole t> 3 and bores the cylinder 35 · The tube 11 is movably mounted on the short pieces of the rod 17 *, with it being attached to the Brldo LU in the same way as in FIGS. 1 and 2. Inside the tube 11 there is a flexible hose 5 ^ # which, in the non-assembled state, has a larger diameter than the bore of the tube 11. In the assembled state, the sole tube has an 8-shaped cross-section, with part of the eight having the Tab 56 lies in the interior of the tube 11, while the other part of the figure eight protrudes from the slot 50. Inside the hose 5 * 1 there is a further rod 55 of slightly smaller diameter than the bore of the tube 11, the rod 55 holding the hose 44 in its position. The tab 56 of the hose 54 protruding from the slot 50 is longer than the free distance between the cylinder 55 and the tube 11 . The paring knife 36 is pressed onto the cylinder 33 in the same way as in FIGS. 1 to 3.

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By suitable selection of the tube diameter , tube thickness and slot width, the stiffness of the tab 56 protruding from the slot 54 can be adapted to the requirements as desired.

During operation of the textile machine on which the device according to the invention is attached, the cylinder 35 rotates. The clamp 14 has been adjusted by means of the screws 2k in such a way that the tube 11 contacts the cylinder 35 in relation to the direction of rotation of the same in front of the paring knife 36, go that the tube 11 is also set in rotation. The speed of rotation of the tube 11 varies according to the coefficient of friction and the contact pressure. When rier lobe 12 has checked the point of contact between cylinder 35 and tube 11, the rotation causes the straight lobe (.jsn lobe 12d; i .lehr 11 35 lifted off, if this is made possible by the boi> ondcre storage of the tube 11. During the ^ ca process the lobe 12 bends under the weight of the dysentery, ε 11 elastic and w.nn the eler.t-irc'i-e ^v orrj anir.zn, * ^r .'c .: lobe 12, the friction force between lobes unu Zylindci- 35 Overcomes "co stretches dt r U; th 3: {rucknrll and Schlutt on o &'i before \ mu on. .'iohiiliu. ^ r.nr riiar: {.-m κ] \ c material and flings the same In liichtiing, i.tyvn (Um 'Im ^ - o3c! P? nt' U. J '(»L- wepferich3eu ( '. «' 1 <Haleila] becomes ν · η <3 <j," jnip- dint '·.'. .Snut »'] <nui)' ci: r , cdiiLu with elju-r η1« · Μ et 1 -1 - ta -

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■ shared Unterdruokquelle connected, recorded and through dl · inlet openings 31 sucked in. The tube 11 falls under Action of gravity back on cylinder 35 and the whole process is repeated anew. The hardness of the run and the speed of the pipe 11 can still be influenced by the fact that the base 23 In the brother 14 a compromise of the point of contact between Tube 11 and cylinder 35 in the circumferential direction of the latter Beglich 1st, where this point of contact is closer to or further away from the point of contact of the cylinder 35 with the Paring knife 36 can be moved. When the pipe 11 partially touches the paring knife 36, the speed of rotation of the tube 11 is due to the occurring additional friction slowed down. If there is no contact between the paring knife 36 and the tube IL, the speed of rotation of the latter increases. Preferably, the speed of rotation is chosen so that the pipe 11 is as close as possible turns slowly, but without any risk of it coming to a standstill.

In the Pig. 4, 5 is the tube 11 over the end pieces 51 are driven by the cylinder 35. Since the tab 56 is longer than the free distance between tube 11 and Cylinder 35 * lies the tab 56 when the tube rotates

009830/0184

BAO ORIGINAL

for the time being on the jacket of the cylinder 35 * n and will move to the rear unbent, so that it is at least partially when turning the world over under elastic prestress in the tangential direction can stand. In this embodiment, the tube 11 also be stored in non-displaceable bearings. The process of relaxing the flap is then the same as in the example according to Flg. 1-3. The recurring jerky hitting of the flap 12 or 56 over the Paring knives 36 are accumulated on and in front of it Pipes and the like are stripped off, thrown away and conveyed into the suction element 30 or 57, so that the paring knife remains free of contamination.

The advantage of this arrangement is that through the jerky movement of the flap 12 and 56 between the Paring knife 36 and the cylinder 35 trapped fibers and the like are detached or torn, so that no the peeling process disruptive accumulations of the peeling knife edge and cylinder 35 can form and thus the cylinder can always be kept clean. This increases the quality of the product from the textile machine.

In order to gain access to the cylinder 35 or the squeegee rollers of the card, the cover 40 is opened, with the entire Cleaning device 10 is lifted off with the lid,

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80 that the cylinder 35 and the paring knife 36 are freely accessible are.

This device can also be used on lines, spinning machines and Further textile machines are used, which are smooth Have fiber-guiding cylinders with paring knives.

It is not necessary for the tube 11 to be driven directly or indirectly by the cylinder 35, it can also be driven via Belts and the like are driven by another shaft or have their own drive. Of course, several tabs can also be attached to the tube 11. It is also possible to use a To use a rod or any other elongated support body to which the tab or tabs are attached, so that they contact the cylinder 35 along a surface line of the same. The flaps can also be made from relatively rigid Consist of material and be resiliently hinged to the support body. The peeled and flung material can also by a blown air flow or by a blown and Suction air flow can be removed. The lobe can also be in Can be arranged in the form of a one-part or multi-part spiral. But E3 is also possible to have the support body conical or to form the lobes with decreasing width.

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Claims (1)

- li - Claims 1. Device for cleaning the peeled-off material side of peeling measuring mandrels, which at ff; end sorf o'clock Cylinders of textile machines for cleaning the cylinders abut, characterized in that at least one flexible tab is attached to an elongated, driven support body which is rotatable about an axis, which is preferably arranged parallel and at a distance from the fiber-guiding cylinder, with a section at right angles to the axis the straight line connecting the axis of rotation and the cylinder axis the fiber-guiding cylinder in relation to the Direction of rotation of the same in front of the support point of the chälnesser cuts on the cylinder so that the support body and cylinder are driven in opposite directions and that the flap is in the area of the mentioned intersection point at least partially and temporarily bent backwards under elastic tension in relation to the direction of rotation and that the paring knife lies in the movement area of the flap. 2. Apparatus according to claim 1, characterized in that the Support body is designed as a preferably elastic tube. 3 · Device according to claims 1 and 2, characterized in that « that the intersection of the straight line connecting the 009830/0184 _BA0 axis and cylinder axis on the circumference of the cylinder against the paring knife is displaceable. 4. Device according to claims 1 and 2, characterized in that that the tube rests directly on the cylinder and is in drive connection with it through frictional engagement. 5. Device according to claims 1 and 4, characterized in that that the tab is attached tangentially to the pipe and protrudes from the pipe to the rear in the rotational direction of the pipe. 6. Device according to claims 1 and 2, characterized in that that the tube is at a distance from the cylinder that guides the lens and is connected to it by means of a drive connection and that the tab is arranged radially on the tube. 7 * Device according to claim 1, characterized in that a Suction and / or blowing Eleroent is arranged at an effective distance from the paring knife 1st. 8. The device according to claim 1, characterized in that the The flaps are arranged parallel to the fiber-guiding cylinder. April 12, 1965 Soh / lf 009830/0184 ORIGINAL BATHROOM ι Le first page