Sleeve for Winding with a Roving

Abstract

The invention relates to a sleeve (1) for winding with a roving (2), wherein the sleeve (1) has an elongated sleeve body (3) with three end faces (4), wherein the sleeve (1) is provided with a receptacle on its first end face (4), said receptacle being formed by an undercut (18), and wherein the sleeve (1) is provided with attachment (12) on its second end face (4), and wherein the sleeve body (3) has a contact region (5) intended for contact with a roving (2), and wherein the contact region (5) is formed at least predominately by a paper layer (9), and a capture structure (14) is provided for gripping one end of the roving. It is proposed according to the invention that the paper layer (9) is processed mechanically in at least some sections on its surface that forms the contact region (5), and/or the paper layer (9) is provided with an additive (6) that increases the roughness of the surface in the interior and/or on the surface thereof forming the contact region (5), and/or the paper layer (9) has a surface structure created by overlapping individual paper layers on the surface thereof, forming the contact region (5), in the production of the sleeve body (3).

Claims

1. A sleeve (1) for winding with a roving (2), wherein the sleeve (1) has an elongated sleeve body (3) with three end faces (4), wherein the sleeve (1) is provided with a receptacle on its upper end face (4) where the receptacle is formed by an undercut (18), wherein the sleeve (1) is provided with attachment (12) on its lower end face (4) for rotationally fixed holding of the sleeve (1), wherein the sleeve body (3) has a contact region (5) intended for contact with a roving (2), and wherein the contact region (5) is formed at least predominately by a paper layer (9), wherein a capture structure (14) is provided for gripping one end of the roving, characterized in that the paper layer (9) is processed mechanically in at least some sections on its surface that forms the contact region (5), and/or that the paper layer (9) is provided with an additive (6) that increases the roughness of the surface in the interior and/or on the surface thereof forming the contact region (5), and/or that the paper layer (9) has a surface structure that is created by overlapping individual paper layers on the surface thereof forming the contact region (5) in the production of the sleeve body (3).

2-10. (canceled)

Description

[0029] Additional advantages of the invention are described in the following embodiments. It is shown each time schematically by

[0030] FIG. 1 a longitudinal section through a sleeve wound with rovings according to the invention;

[0031] FIGS. 2a and 2b possible surface structures of a sleeve according to the invention;

[0032] FIG. 3a a longitudinal section through a sleeve according to the invention; and

[0033] FIG. 3b a detail of the contact region of a sleeve according to the invention.

METHODS OF IMPLEMENTING THE INVENTION

[0034] FIG. 1 shows a longitudinal section through a sleeve 1 according to the invention, which is already wound with roving 2.

[0035] The sleeve 1 has a sleeve body 3 which is designed to be cylindrical n the present case and has an upper and a lower end face 4.

[0036] To be able to induce a rotational movement in the sleeve 1 with the help of a sleeve holder (not shown) of a spinning mill or a winding machine, the sleeve 1 has an attachment 12 in the area of the lower end face 4 which has an opening 15 as well as one or more bulges 13 in order to be able to form a form-fitting connection between the attachment 12 and a sleeve holder of a winding machine or spinning mill.

[0037] In the area of the upper end face 4, an insert 11 which also has an opening 15 as well as an undercut 18 is present in order to insert a supporting structure into the sleeve 1 and be able to raise the sleeve 1 thereby and transport it. The insert 11 as well as the attachment 12 may be made of a plastic.

[0038] In any case the sleeve body 3 consists of a paper layer 9 having one or more paper layers so that the sleeve body 3 can be simply recycled.

[0039] To now prevent the roving 2 which is on the sleeve 1 from slipping off the sleeve 1 while additional roving 2 is being wound onto it or during the transport or the storage of a wound sleeve 1, it is proposed in a first variant according to the invention that the paper layer 9 should be processed mechanically in at least some sections on its surface forming the contact region 5.

[0040] For example, it is conceivable that the paper layer 9 will have a mechanically produced structure 7 as shown in FIG. 2a, e.g. it may have a diamond pattern 10. Likewise other patterns are of course also conceivable. In general, however, the structure 7 should be only a few hundredths to a few tenths of a millimeter deep so that the outside diameter of the sleeve body 3 is essentially the same over the entire longitudinal extent in the contact region 5.

[0041] Alternatively a corresponding surface structure may of course also be achieved by having the paper layer 9 consist of multiple paper layers which have been wound in different alignments with the sleeve body 3 (second variant).

[0042] FIG. 2b shows that the contact region 5 may also have several sections with a different surface structure. For example, it would be conceivable for the sleeve body 3 to have a structure 7 in the upper region, which serves as a capture structure 14 for gripping one end of the roving at the start of the winding process. The remaining section of the contact region 5 may have a different structure 7 or, as shown in FIG. 2b, for example, may also be provided with an additive 6 (for example, sand) to increase the roughness of the contact region 5 and to prevent the roving 2 from slipping down (third variant).

[0043] A longitudinal section through a corresponding embodiment is shown in FIG. 3a. As can be seen there, the paper layer 9 is provided with a spherical additive 6, which is glued into and/or onto the paper layer 9, for example.

[0044] Finally the desired roughness of the contact region 5 may also be implemented by cuts 8 in the surface of the sleeve body 3. The resulting patterns in the surface are shown in FIG. 3b merely as an example. Of course almost any patterns are conceivable here because the patterns depend only on how a corresponding cutting tool processes the surface of the paper layer 9. The surface structure is preferably in the form of hooks or scales, because these patterns can be especially effective in preventing slippage of the roving 2.

[0045] Finally, FIG. 1 shows that in addition or as an alternative to the aforementioned inserts 11 and/or attachments 12, additional functional sections may be present. For example, the sleeve 1 shown in FIG. 1 comprises a round guide sleeve 16 (for receiving a sleeve holder, for example, in the form of a so-called Peg-Tray) as well as a spacer sleeve 7 which is also round and ensures the desired spacing between the upper insert 11 and the guide sleeve 16. Both the guide sleeve 16 and the spacer sleeve 17 may be made of paper and may be glued in the sleeve body 3.

[0046] The present invention is not limited to the exemplary embodiments illustrated and described here. Modifications are possible within the scope of the patent claims as well as there may be any combination of the features described here even if they are illustrated and described in different parts of the description and/or claims or in different embodiments, assuming that the combination does not result in a contradiction with the teaching of the independent claims.

LIST OF REFERENCE NUMERALS

[0047] 1 sleeve

[0048] 2 roving

[0049] 3 sleeve body

[0050] 4 end face

[0051] 5 contact region

[0052] 6 additive

[0053] 7 structure

[0054] 8 cut

[0055] 9 paper layer

[0056] 10 diamond pattern

[0057] 11 insert

[0058] 12 attachment

[0059] 13 bulge

[0060] 14 capture structure

[0061] 15 opening

[0062] 16 guide sleeve

[0063] 17 spacer sleeve

[0064] 18 undercut