CN102995281B - Knitting tool holder - Google Patents

Abstract

The invention relates to a weaving tool holder (1) with a plurality of weaving tools (2), each of which has a working area (10), a fixing area and two narrow sides (4) pointing in opposite directions , 5), wherein the weaving tools (2) are arranged parallel to each other and separated by a predetermined distance (3). It is an object to provide a braiding tool holder which requires a small installation space with high rigidity and low mass. Provision is made for this that the weaving tool ( 2 ) is arranged between two cover plates ( 8 , 9 ), wherein the narrow sides ( 4 , 5 ) are glued to the cover plates ( 8 , 9 ).

Description

Knitting Tool Holder

technical field

The invention relates to a weaving tool holder with a plurality of weaving tools, each of which has a working area, a fixing area and two narrow sides pointing in opposite directions, wherein the weaving tools are arranged parallel to one another and spaced apart from each other predetermined spacing.

Background technique

It is generally common in knitting machines to collect a plurality of knitting tools in one knitting tool holder. Weaving tool holders are often one or two inches (Zoll) wide and receive a corresponding number of weaving tools depending on the precision.

The term "knitting tool" is used here as an abbreviation for those elements of a knitting machine, in particular a warp knitting machine, which are involved in the loop formation process during the production of the knitted fabric. The knitting tools not only involve the original knitting tools such as knitting needles, sliders, sinkers, etc., but also involve yarn guide elements, such as eye needles, comb-like layering strips (Kammplatine) and the like.

When multiple knitting tools are grouped together in a bracket, the knitting tools can be installed and adjusted more quickly on the knitting machine.

Initially people cast weaving tools out of lead for the production of brackets. The disadvantage of this is that it is accompanied by a great mass, which adversely affects the working speed of the weaving machine. The temperatures that occur during casting can also deform the braiding tool, which necessitates a time-consuming post-processing of the braiding tool holder.

It is proposed in DE 10 2009 010 316 A1 to cast the weaving tool from plastic.

DE 196 18 368 B4 describes a braided tool holder with a bracket having a groove. The slots are filled with a hardening filler into which the braiding tool is placed while the filler is not yet hardened.

In fast-running machines, not only the weaving tool bar, but also the weaving tool support must be very rigid and sufficiently strong. When using plastics or light metals, which are preferred for weight reasons, this results in a greater wall thickness for the braided tool holder. This in turn leads to an undesired increase in quality. In addition, one is limited, for example, to the guide needle when selecting the yarn guide, since the yarn should not collide with the knitting tool support.

Contents of the invention

The technical problem to be solved by the present invention is to provide a braiding tool holder which, while being very rigid, requires only a small installation space.

In a weaving tool holder of the type mentioned at the outset, this technical problem is solved in that the weaving tool is arranged between two cover plates, wherein the narrow sides are glued to the cover plates.

With this configuration, only a small amount of adhesive material is required to connect the weaving tool to the weaving tool holder. This amount only has to establish the connection between the narrow side of the braiding tool and the cover. During installation, the weaving tools are arranged next to each other with the desired graduation and positioned, for example, according to the corresponding specification. The adhesive material can then be applied to the narrow side of the weaving tool or to one side of the cover, and the cover is then bonded to the weaving tool. The same process is then repeated on the other narrow side. Of course, the two bonding processes can also be carried out simultaneously. A sandwich composite structure consisting of two cover plates and braiding tools is then formed. Surprisingly, the bonding of the weaving tool on the narrow side is sufficient to provide a weaving tool holder, which has a low mass and after the weaving tool holder is fixed to the corresponding weaving tool bar Sufficient rigidity in any situation.

Each weaving tool preferably has a rod in the fastening region and the cover is bonded to this rod. A defined contact area for the cover plate is thus created on the weaving tool. This simplifies manufacturing.

The rod preferably has a projection on at least one narrow side, which protrudes above the end side of the cover plate, wherein the projection has an abutment surface which is bonded to the end side. The protrusion can be designed to cover only a part of the thickness of the end face, so that a correspondingly smaller bonding surface results. However, the projection can also be designed so large that the abutment surface has an extension at least as large as the end-side extension. In this case, the adhesive connection is carried out on the largest possible surface. The weaving tool is then held in the weaving tool holder in two different directions, so to speak. This increases stability. Furthermore, assembly is simplified, since the protrusion defines a point at which the cover can be accessed.

The projection preferably surrounds the cover plate on the outside, wherein the projection is glued to the cover plate on the outer side of the cover plate. In other words, the protrusion has a groove slightly larger than the thickness of the cover plate. The cover plate is then inserted into this groove so that the braiding tool surrounds the cover plate in a U-shape in the area of the projection. In each weaving tool there are thus three bonding surfaces between weaving tool and cover plate, which results in a very high degree of stability.

Spacers are preferably arranged between the cover plates, the spacers having a thickness corresponding to the distance between the narrow sides in the region of the braiding tool fastening. The cover is connected to the spacer, for example likewise by gluing. The cover plate is thus fastened not only to the weaving tool but also to the spacer, so that the cover plate can rest flat against the spacer. This gives the braiding tool holder a very high level of stability.

The spacer preferably ends at an end of the rod facing away from the working area. The area between the braiding tools is not filled by any additional elements or by spacer elements. Especially when the precision of the braiding tools is high, it is easier to provide the spacers with unshaped side edges which do not protrude into the gap between the braiding tools.

The spacer is preferably made of light metal or plastic. The increase in mass due to the spacer can thus be kept small.

The spacer preferably forms at least one stop. When installing the weaving tool holder on the weaving tool bar, the stop helps in positioning.

In a first preferred refinement it is provided that the stop is guided through the cover. In this case, however, it is necessary to provide corresponding holes for the cover. However, this embodiment has the advantage that it is also possible to connect the spacer and the cover to each other in a form-fitting manner, which further increases the stability of the braiding tool holder.

In a second preferred refinement, the stop protrudes from the space between the cover plates on the side facing away from the weaving tool. In this case, the spacer is configured with a simpler contour.

In the fastening region, the distance between the narrow sides is preferably smaller than the sum of the thicknesses of the cover plates. The structural dimensions of the braiding tool holder are thus kept small. The cover plate practically does not result in a significant increase in the structural dimensions.

The cover plate is preferably made of a flat material with a thickness in the range of 0.1 to 0.8 mm. The cover plate can actually also be designed as a foil. Despite the thinness of the cover plate, sufficient stability can also be ensured due to the adhesive connection to the weaving tool.

It is preferred here if the profile material is steel or plastic, optionally reinforced with fibres. The face material must only have sufficient tensile strength to resist stress when the knitting machine is in operation.

The weaving tool preferably protrudes a maximum of 10 mm from the cover plate. The knitting machines therefore have only a short free length in which they can be deformed. On the one hand, this keeps the outlay in post-processing, for example when calibrating the weaving tool, low. On the other hand, the adhesive connection between braiding tool and cover plate is less stressed, since only shorter lever arms are available.

The weaving tool holder is preferably configured symmetrically with respect to the plane between the cover plates. When installing the weaving tool holder, no particular orientation of the weaving tool holder relative to the weaving tool holder must be taken into account.

Description of drawings

In the following, the invention will be described in detail with the aid of preferred exemplary embodiments and with reference to the drawings. In the attached picture:

Fig. 1 is the front view of braiding tool support;

FIG. 2 shows the section B-B according to FIG. 1;

Figure 3 is a perspective view of a modified embodiment of the braiding tool holder;

Fig. 4 is a schematic sectional view of the weaving tool holder according to Fig. 3;

Fig. 5 shows a kind of implementation form after modification with respect to Fig. 4; And

FIG. 6 shows a modified embodiment relative to FIG. 5 in a sectional view.

Detailed ways

FIG. 1 shows a weaving tool holder 1 with a plurality of weaving tools 2 which are arranged next to each other at a predetermined distance 3 from one another. Only the narrow side 4 of the braiding tool 2 can be seen in FIG. 1 . If the narrow side 4 visible in FIG. 1 is designated as the front side, then the corresponding narrow side 5 is located on the rear side. The narrow sides 4, 5 point in opposite directions.

It can be seen from FIGS. 2 and 3 that the knitting tool 2 here in the form of an eye needle is designed to be planar. They can be stamped, for example, from sheet metal of corresponding thickness.

The weaving tool holder has two eyes 6 , 7 through which screws can be guided, and the weaving tool holder 1 can be screwed to a weaving tool bar, not shown in detail. The braiding tool holder 1 has a width of, for example, 1 or 2 inches. Since the eyes 6 , 7 can be arranged relatively far apart from one another, the knitting tool holder 1 has good orientation possibilities on the knitting tool bar.

As can be seen in particular in FIGS. 2 and 3 , the braiding tool holder 1 is designed as a sandwich. The first cover plate 8 is glued to the front narrow side 4 of the weaving tool 2 . The second cover plate 9 is glued to the narrow side 5 on the back of the weaving tool. The designations "front" and "rear" are used here only to simplify explanation. The braiding tool holder 1 is configured symmetrically to the plane between the two cover plates 8 , 9 and can be mounted in the direction shown or in a direction deflected by 180° relative to the direction shown.

The braiding tool 2 has a working region 10 and a fastening region, which is here formed by a rod 11 . The cover plates 8 , 9 are glued to the braiding tool 2 only in the region of the rod 11 . To this end, an adhesive material 12 is arranged between the rod 11 and the cover plates 8 , 9 in each case.

Furthermore, a spacer 13 is arranged between the two cover plates 8 , 9 . The spacer 13 has a thickness corresponding to the distance between the two narrow sides 4 , 5 in the region of the rod 11 , ie in the fastening region. Correspondingly, the two cover plates 8 , 9 can be designed flat over their entire extent. The cover plates 8 , 9 are connected planarly to the spacer 13 , for example by gluing. However, they can also be connected to the spacer 13 point by point or line by line.

The cover plates 8 , 9 consist of a relatively thin flat material. They can be formed, for example, as a steel foil with a thickness in the range of 0.1 to 0.8 mm, preferably 0.1 to 0.5 mm. Alternatively, plastic can also be used for the cover plates 8 , 9 , wherein the plastic is preferably reinforced with fibers, for example glass fibers or carbon fibers. Both steel and fiber-reinforced plastic have a high tensile strength, so that an adhesive connection between the end sides 4 , 5 and the cover plates 8 , 9 is sufficient to securely hold the braiding tool 2 in position.

The spacer 13 can likewise consist of plastic. Light metals can also be used. The eyes 6 , 7 obviously also pass through the spacer 13 .

In the configuration according to FIGS. 1 and 2 , the spacer 13 has a pair of stops 14 , 15 , namely a stop 14 on the front side and a stop 15 on the rear side. However, the other pair of stops, which can only be seen on the front side of one of the stops 16 in the figures, can be arranged in the region of the other edge of the braiding tool holder 1 . The stops 14 , 15 are guided through corresponding holes 17 , 18 in the cover plates 8 , 9 . They bring about a form fit between the spacer 13 and the cover plates 8 , 9 .

The spacer 13 has no profile on its edge facing the weaving tool 2 , but is smooth. In particular, there are no elements or protrusions of the spacer 13 protruding into the gap 3 between the braiding tools 2 . The gap 3 is free between the cover plates 8 , 9 . The stops 14 , 15 can be used as aids for positioning the weaving tool holder 1 on the weaving tool bar.

It can be seen in FIG. 2 that the adhesive material 12 protrudes approximately inwardly between the cover plates 8 , 9 above the weaving tool 2 . This is unavoidable in many cases, but not necessary in principle. The adhesive connection between the cover plates 8 , 9 and the weaving tool 2 can be produced, for example, by arranging the weaving tools 2 side by side in parallel with the desired graduation in the corresponding specification and the cover plate 8 is equipped with Adhesive film (or another adhesive material). When the cover sheet 8 is laid flat on the weaving tool and on the spacer 13 , the desired adhesive connection can be produced. Apply some pressure when necessary. The same procedure can be repeated on the cover plate 9 .

FIG. 3 shows a modified design, which differs from the design of FIGS. 1 and 2 in that the spacer 13 has stops 19, 20 which are removed from the cover plate on the side facing away from the weaving tool. The space between 8 and 9 sticks out. Furthermore, identical or mutually corresponding elements are marked with the same reference numerals.

The weaving tool holder 1 according to FIG. 3 also has material cutouts 21 for mass reduction.

FIG. 4 shows a side view of the braiding tool holder 1 according to FIG. 3 .

FIG. 5 shows a variant of the braiding tool 1 according to FIG. 4 . The weaving tool 2 has a protrusion 22 on the front side 4 of the end of the rod 11 facing the working area 10 and a protrusion 23 on the rear side 5 . The protrusions 22, 23 form abutment surfaces 24, 25, respectively. The contact surfaces 24 , 25 have an extension from the front side 4 to the rear side 5 which is greater than the thickness of the cover plates 8 , 9 . It is thus also possible to glue the weaving tool 2 to the end faces of the cover plates 8 , 9 in the region of the abutment surfaces 24 , 25 . This results in an adhesive connection in two different directions, namely in the direction of the longitudinal extent of the braiding tool 2 and transversely thereto. This results in increased strength and improved rigidity.

FIG. 6 shows a modified embodiment of the braiding tool holder 1 compared to FIG. 5 in a side view.

It can be seen from the figure that the protrusions 22 , 23 of the weaving tool 2 each have a groove 26 , 27 , so that the protrusions 22 , 23 can surround the cover plates 8 , 9 in a U-shape. The grooves 26 , 27 are designed such that the cover plates 8 , 9 can be introduced with little play. This gap is so large that one can also place adhesive material between the cover plates 8,9 and the walls of the grooves 26,27 so that the weaving tool 2 can be bonded to the cover plates 8,9 along the walls of the grooves 26,27. catch.

As mentioned above, the cover plates 8, 9 are very thin. In the fastening region, ie on the rod 11 , the distance between the narrow sides 4 , 5 is greater than the sum of the thicknesses of the cover plates 8 , 9 . Correspondingly, the thickness of the braiding tool holder 1 is mainly determined by the width of the braiding tool. The cover plates 8, 9 hardly count towards the thickness. The cover plates 8 , 9 will not be thicker than the weaving tool 2 .

The weaving tool 2 protrudes from the cover plates 8, 9 by a maximum of 10 mm, preferably even only by 5 mm or less. This therefore forms a shorter free lever arm on the weaving tool 2 , so that the moments that lead to the loosening of the adhesive connection between the weaving tool 2 and the cover plates 8 , 9 can likewise be kept low. In addition, the risk of deformation of the braiding tool 2 and the need for an orientation of the braiding tool 2 associated therewith are minimal.

Claims (15)

1. weave tool support, with multiple braiding instrument (2), each braiding instrument has working region (10), FX and two narrow sides pointed in the opposite direction (4,5), arrange with wherein weaving the side by side parallel to each other and spacing (3) of being separated by predetermined of instrument (2), it is characterized in that, braiding instrument (2) is arranged between two independent cover plates (8,9), and wherein, narrow side (4,5) are bonding with cover plate (8,9).

2., by braiding tool support according to claim 1, it is characterized in that, each braiding instrument (2) in FX, have rod member (11) and cover plate (8,9) is bonding with this rod member (11).

3. by braiding tool support according to claim 2, it is characterized in that, described rod member (11) has projection (22,23) at least one narrow side (4,5), projection (22,23) is given prominence to exceeding the side of cover plate (8,9), wherein, projection (22,23) has abutment face (24,25), and abutment face (24,25) is bonding with the side of cover plate.

4. by braiding tool support according to claim 3, it is characterized in that, described projection (22,23) surrounds cover plate (8,9) in outside, and wherein said projection (22,23) is bonding with cover plate (8,9) on the outside of cover plate (8,9).

5. by the braiding tool support that one of Claims 1-4 is described, it is characterized in that, arrangement interval part (13) between cover plate (8,9), distance piece (13) has thickness corresponding to spacing between the narrow side (4,5) in the FX of the instrument of braiding.

6., by braiding tool support according to claim 5, it is characterized in that, distance piece (13) terminates in the end back to working region (10) of rod member (11).

7., by braiding tool support according to claim 5, it is characterized in that, distance piece (13) is formed by light metal or by plastics.

8., by braiding tool support according to claim 5, it is characterized in that, distance piece (13) has at least one backstop (14,15,19,20).

9., by braiding tool support according to claim 8, it is characterized in that, backstop (14,15) is directed through cover plate (8,9).

10. by braiding tool support according to claim 8, it is characterized in that, backstop (19,20) is stretched out from the space between cover plate (8,9) on the side back to braiding instrument (2).

11. by the braiding tool support described in one of Claims 1-4, and it is characterized in that, the spacing between Zhong Zhai side, working region (4,5) is greater than the thickness sum of cover plate (8,9).

12. by the braiding tool support described in one of Claims 1-4, and it is characterized in that, cover plate (8,9) is made up of the face shaped material of thickness within the scope of 0.1 to 0.8 mm.

13. by braiding tool support according to claim 12, and it is characterized in that, face shaped material is steel or plastics, optionally uses fibre strengthening.

14., by the braiding tool support described in one of Claims 1-4, is characterized in that, braiding instrument (2) is maximum stretches out 10 mm from cover plate (8,9).

15., by the braiding tool support described in one of Claims 1-4, is characterized in that, this braiding instrument pedestal configurations becomes about the plane symmetry between cover plate (8,9).