DE2313720A1 - ARRANGEMENT FOR KEEPING CLEAN CARD HIKING COVERS - Google Patents

Description

PATENT AGENCIES ₅ COLOGNE 51

MAXTON sr. · MAXVON ür. pferdmenqesstr. 6o

DIPLOMA IN ENGINEERS

1 a MR7 i «73

Applicant: Maschinenfabrik Rieter AG, Winterthur (Switzerland) Designation: Arrangement for keeping carded wandering oocles clean Our reference: 412 pg 731

The present invention relates to an arrangement for keeping card revolving flats clean

In cards with revolving flats, dust build-up on the inside parts of the flats still causes some difficulties, as the air flow driven into the inside of the flats under the influence of the relatively rapid rotation of the card drum between the flat bars entrains dust particles from the working zone of the card, which are usually deposited in the inside of the flap in places where these are the least desirable. It has therefore been trying to eliminate the inflow into the lid interior _v dust-laden air through laterally arranged on the lid suction, but what share the deposition of dust, was unable to prevent particular luftzugarmen points. A notable improvement in the conditions could be achieved by a cleaning system according to GH patent 408'726, in which hoods with suction nozzles on one end for sucking off the dust-laden air and injection nozzles on the 'opposite end

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Telephone: (OS21) 38 08 38 · Telegram: Invantotor Cologne · Place of fulfillment and jurisdiction for both parts is Cologne Deutsche Benk AQ Cologne (SLZ 370 7OOCO) Account No. 123C181. Poateoheokkonto Cologne [BLZ S7O ΐΟΟ 60 {account no. 163301

page for blowing in purified air siiia. See it, but it has been shown that even with the. not all draft dead. Angles that are effective enough to prevent any build-up of dust entirely. This Heini - * -; _In addition, the arrangement required a relatively high degree of compliance and therefore also correspondingly; expensive air cleaning and, - -. Air circulation devices. , -—.: ■ - '; · · '■ ■ *

The purpose of the present invention is now. therein, the above mentioned tile parts by preventing the passage of : '. dust-laden air between the flat bars therethrough into the interior of the tree formed by the lids to * "will.

This goal is now according to the invention by an arrangement for keeping clean. Revolving carding flats. the \ initially described kind achievable "which thereby; is characterized, that sealing elements for closing the -Kiekea, are arranged between "the flat bars. -. - . ^. · ■■■■■ -. ' ■■■ - ■.. ^ A:

In the following description of some implementation forms the invention ·. pure, · for example on the basis of. ■ "■ a · 2-adjustment r explained in more detail »where show .... · L .." ■> *. · ■ ·

Pig. t - ·:;> -..- i ν-- .. v .. Ä-Ieia ^ Oieil section of a

according to Wanderdeekel's

Pig. Zr ^^ M ^8. ^ - ^, ^; ·., ^: · - · different, full details _: sforas @ n of ... ■. . - ^ r-.t '- :: / ^; - J- Individual parts of the in Fig.,; _{; <} 1 shown.

provided revolving lid *

Like in Pig. 1, revolving flat 1 of a card consist of a number of essentially preferably T-shaped flat rods 2, which are transverse to the longitudinal direction of the card, or parallel to the axis of the card drum 3 indicated by a section of its periphery, parallel to one another and at small distances from one another are arranged. Each two adjacent ends of the flat bars 2 are articulated to one another by chain links 4 to form a self-contained, flexible, grate-like unit, which is driven by a drive mechanism (not shown) with a fraction of the circumferential speed of the drum 3 in a closed path along the drum a sliding arch (not shown) and is guided back on slide rails 5 again. The phrase from the slip-on rail is via oe a rotatably mounted guide and guide roller 6. To the passage of contaminants such as dust and the like through the spaces or gaps between the individual flat bars 2 ^v under the influence of the air flow caused by the drum 3 into the To prevent the inside of the cover, sealing members are arranged between the individual bars to close the gaps formed by the spaces between each two cover bars 2. With regard to the position-dependent change in the mutual position of the rods 2, or the continuous change in the spaces between the rods 2, it is particularly advantageous to provide sealing elements made of an elastically flexible, preferably even a rubber-elastic material to close the gaps between the flat rods 2. These sealing organs can be provided in various designs.

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be seen. According to a particularly simple variant (Fig. 2, 2a), a sealing member can have the shape of a lengthwise folded strip 7 made of rubber or plastic material, which is detachably attached in any suitable manner to one of two adjacent rods 2 and covers the gap between the bars.

According to a further variant shown in FIGS. 3 and 3a can be a sealing member in the form of a gap between two rods 2 overlapping profile band 8 made of rubber or plastic material should be provided * which of the one longitudinal edge along a bead-like thickened (bead 8 ')> after the opposite longitudinal edge each decreasing cross-section and also on only one of the two rods? .aüf is attached in a suitable manner.

According to another, in Figs. 4, 4a and 4 *> In the variant shown, a sealing element can also be in the form of a hollow tube 9 made of rubber or plastic material with an essentially circular cross-section and with at least a longitudinal rib 9 'be provided. Furthermore, instead of a hollow tube of circular shape, a hollow tube can also be used 10 made of rubber or plastic material with a substantially prismatic cross-section as. Sealing element between the bars 2 be arranged. In FIGS. 5 and 5a, a prismatic hollow profile hose 10 is shown purely by way of example, which rather has the shape of a substantially three-sided prism. In addition, of course, hollow profile seals can also be used.

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processing organs with other prismatic cross-sections, for example four- or five-sided prisms can be provided without changing the spirit and purpose of the present invention.

For fastening the sealing members to the rods 2, in the embodiment according to FIGS. 2 and 2a, the folded edges of the strips 7 are connected to one another by gluing and also advantageously also glued together with a flat profile strip 11 as a stiffening element. For the releasable fastening of a strip seal 7, 11 to the rods 2, fastening screws 12 are provided. For the releasable fastening of the profile band sealing members 8, clips 13 have proven useful, each of which ^{encompasses a web part 2 1 of} a rod 2, as illustrated in FIG. 3. For releasably securing the hollow tube sealing elements 9 and the hollow profile hose seals 10 are composed of two parts, under the trade designation "VEICEO" Velcro known fastening members 14, H 'advantageous, with one portion, for example, the portion .14 of the web parts 2 ¹ of the bars 2 glued and a hollow tube or hollow profile tube sealing element 9 or 10 is held firmly between two rods 2 ^{by a connecting piece of the second part 14 f.} In all of the embodiments described above, in the interests of a good seal, it is advantageous that the sealing members extend essentially over at least approximately the entire free length of the rod.

A main advantage of the arrangement according to the invention consists in the prevention of card dust from entering the interior

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the revolving lid. This leads to other very important ones Advantages due to the elimination of the devices for sucking off and piling dust-laden air from the interior and admitting it purified air into the inside of the lid.

The invention can be modified with respect to the exemplary embodiments Experienced.

For example, in addition to the fastening clips 13, it is possible to follow. Pig. 3 to provide Velcro fasteners 14 at the roots of the webs 2 'and the strip-shaped counterparts 14' at the corresponding points of the sealing strips 8, as described in Pig. 3 and 3a is also shown. It is also possible without special fastening elements such as screws, retaining rails, fastening clips, Velcro fasteners or the like to carry out fastening via sealing elements directly by gluing or in a similar manner. Finally, you can also use sealing elements that are not elastically deformable, but can only be designed to be flexible, see above. z. B. steel strips, which can also be combined directly by screws or by welding with the webs of the rods, with each rod either only such a band is provided that resiliently covers the gap, or on both sides of each web depending on a band that is overlap each other like shingles.

Expectations

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Claims (10)

Expectations 1. Arrangement for keeping card revolving flats clean, consisting from a number of parallel bars running transversely to the longitudinal direction of the card and leaving a small gap free, g e k e η η characterized by sealing elements (7, 8, 9, 10) provided between the rods (2) and closing the gaps, 2. Arrangement according to claim 1, characterized through seals made of resilient, preferably rubber-elastic material, 3 "Arrangement according to claim 1 or 2, characterized through between two adjacent flat bars (2) arranged sealing strips (7) which are each detachably attached to at least one of the two rods (2) (Fig. 2, 2a, 3, 3a), 4. Arrangement according to claim 2, characterized in that by means of a hollow tube (9) made of elastically flexible material, which lies sealingly against the lids and which is detachable between the Rods (2) is held (Fig. 4, 4a, 4b, 5, 5a), 5. Arrangement according to claim 4 »characterized by at least one, preferably flexible longitudinal rib (9 ¹ ) on the outside of the hollow tube (9), which preferably has a circular profile (Fig. 4, 4a, 4b), 309839/0509 6. Arrangement according to claim 5, characterized through a hollow tube (10) with an essentially prismatic profile (Pig. 5, 5a), 7. Arrangement according to one of claims 1 to 6, characterized in that the seals (7, 8, 9, 10,) extend over the entire free length of the rod, 8. Arrangement according to one of claims 2, 3, 5 - 7, characterized. characterized in that the releasable attachment means Fixing screws (12) and, if necessary, retaining rails (11) happen (Pig. 2), 9. Arrangement according to claim 2, 3, 5 - 7, characterized in that the detachable fastening takes place by fastening clips (13) which can be pushed onto the free web ends (2 ¹ ) of the rods (2) and optionally on the edges of the Bands (8) ^{encompass arranged beads (8 1} ) (Pig. 3, 3a), 10. Arrangement according to one of claims 1 to 9, characterized in that the releasable fastening of the seals (8, 9, 10) on the flat bars (2) are formed by flexible fastening elements (14, H ¹ ) of the chain lock type. 309839/0509