TOOLBAR

Description

[0001] The present invention relates to a knitting tool bar of a textile machine with a sinker holder for receiving a plurality of sinkers according to the preamble of claim 1.

[0002] Such a knitting tool bar is known, for example, from EP 1770 194 A1.

[0003] Sinkers are used on warp and weft knitting machines to, for example, enclose, distribute or knock off the warp thread.

[0004] Typically, such knitting tool bars are constructed with a base body made of a lightweight metal, such as magnesium or aluminum, or of a fiber-reinforced plastic. These materials are typically used to minimize the mass of the knitting tool bar. Many of the knitting tool bars involved in the knitting process must be accelerated and decelerated twice during a stitch-forming process. The smaller the mass of the knitting tool bar, the lower the forces acting on it. This minimizes wear.

[0005] KR 200309586Y1 describes a needle changing mechanism for knitting machines in which needle pins are clamped between a carrier plate and a holding plate, whereby screws are used to generate the necessary holding force and are screwed into screw holes.

[0006] CN 104131409 A describes a bar with a base body to which a needle holder is attached. A stepped or zigzag-shaped contact surface is formed between the needle holder and the base body, in which a layer of synthetic resin is arranged. The needle holder has a receiving space with a substantially rectangular cross-section.

[0007] DE 197 53 590 C1 describes a segment carrying knitting elements for warp knitting machines with a number of identical sinkers, wherein the sinkers in a segment are connected by hollow pins and the segments can be attached to a bar via intermediate pieces.

[0008] The invention is based on the object of proposing a knitting tool bar which has a high mechanical load capacity and at the same time a low weight.

[0009] This object is achieved in a knitting tool bar of the type mentioned above by the features of claim 1. Advantageous embodiments emerge from the subclaims.

[0010] The circuit board holder has a first profile element and a second profile element, wherein the first profile element and the second profile element are connected to each other and have a space for receiving the circuit boards.

[0011] The profile elements can be shaped according to the mechanical conditions and consequently have different cross-sectional arrangements. Accordingly, different loads, such as vibrations, can also be taken into account, so that the knitting tool bar has a high mechanical load-bearing capacity and a low susceptibility to vibrations despite its low weight. The first profile element can be designed differently from the second profile element. This allows for a high degree of flexibility and adaptability of the profile elements to different loads and vibrations. Furthermore, different areas of profile elements can be designed differently, so that, for example, a wall thickness or the shape of individual areas can be varied. This achieves a high mechanical load-bearing capacity with a low weight. The blanks are fastened in the space, whereby the space corresponds to the blank holder.This fastening is achieved through a material-to-material connection, such as gluing or welding. A jig can be used to position the boards in the space, thus achieving repeatable, precise positioning of the individual boards.

[0012] The first profile element and the second profile element are connected to each other by a material bond. Examples of a material bond include an adhesive bond, a soldered bond, or a welded connection. Depending on the type of material bond, the profile elements can be separated again. The material bond represents a simple way to connect profile elements, with the connection being a lightweight joint.

[0013] Preferably, the circuit boards are connected to each other by a wire. The wire further connects the circuit boards, thus connecting them to each other and to each other. This results in good mechanical strength of the individual circuit boards and a stable connection between the boards. Furthermore, individual areas of the circuit boards can be reinforced. In this context, a wire should also be understood as a rope or a rod.

[0014] Preferably, the wire and the circuit boards are bonded together. This bond allows both similar and dissimilar materials to be joined, meaning that, for example, the wire and the circuit board don't necessarily have to be made of the same material. Furthermore, the bond can be adapted to the prevailing loads, allowing for an elastic or rigid connection, for example. This allows for a high degree of flexibility and adaptability to the prevailing conditions.

[0015] Preferably, the circuit boards have a first region in which the circuit boards are connected to the circuit board holder, and a second region that is different from the first region, wherein the circuit boards are connected to the wire in the second region. Consequently, the circuit boards are held in two different regions, resulting in a stable fastening of the circuit boards.

[0016] Preferably, the first region is arranged opposite the second region. For example, the first region is arranged in a first end region of the circuit board, and the second region is provided in an end region opposite the first end region. Depending on the design, the regions can meet, for example, in the center or in a central region of the circuit board. In any case, the connection of the circuit boards to the wire and the connection of the circuit board to the profile elements are at least minimally spaced from each other. This allows even a small installation space to be used for circuit board mounting.

[0017] Preferably, the first profile element and the second profile element each have a recess, wherein the recess of the first profile element and the recess of the second profile element lie one above the other when the profile elements are connected. The connected state of the profile elements describes a state in which the profile elements are connected to one another and form the space for receiving the sinkers. This connection can, as already described above, be made by a material bond, for example. The knitting tool bar can be attached to the textile machine or another holder through the recess. Furthermore, such a recess can serve to save weight, so that a recess contributes to the lightweight construction concept of the knitting tool bar. Consequently, the knitting tool bar is kept light.

[0018] Preferably, the first profile element and the second profile element comprise sheet metal as their main component. Sheet metal is available in a variety of thicknesses and materials, allowing for the specific requirements of the textile machine to be taken into account.

[0019] Preferably, the first profile element and the second profile element comprise stainless steel as their main component. Stainless steel is a steel alloy with a low tendency to rust or oxidize. Furthermore, stainless steel is generally non-magnetic or magnetically conductive. This minimizes any potential magnetic forces acting on the knitting tool bar. Consequently, the mechanical stress on the profile elements induced by magnets is minimal.

[0020] Preferably, the space is U-shaped. The U-shaped boundary defines the cross-section in the direction of extension of the profile elements. Thus, the space is essentially bounded on three sides, with one side being open. The sides or boundaries of the U-shaped boundary can have angles, beads, or kinks, for example. Alternatively, the space can also be C-shaped, V-shaped, or similar in the direction of extension of the profile elements. This allows for easy insertion of the blanks while simultaneously maintaining low weight and good mechanical strength.

[0021] Preferably, a region of the circuit board surrounded by the space is shorter than a region of the circuit board protruding from the space. The circuit board is thus held in a limited space or area, so that the holder or the profile elements can be dimensioned accordingly small. Consequently, the knitting tool bar or the first profile element and the second profile element can be designed small.

[0022] Preferably, the first profile element and the second profile element each have three sections, wherein the sections of each profile element are each arranged at an angle to the adjacent section, wherein in the connected state a first section of the profile element is arranged parallel to a first distance of the second profile element and a second section is arranged adjacent to the first section, wherein a third section and a first section are each arranged on the second section. Consequently, each of the profile elements describes a Z-geometry in the broadest sense. This Z-geometry can absorb high mechanical loads while at the same time keeping the tendency to vibrate low. Furthermore, the geometry allows the space for accommodating the circuit boards to be adapted to the circuit boards.This allows the profile elements to be adapted to the circuit board, so that the bracket can be easily adapted to the circuit boards.

[0023] Preferably, in the connected state, the two third sections are arranged essentially parallel and extend the same distance toward the blank. This allows for easy insertion of the blanks into the space. Furthermore, the blank is securely held in place by the equal extension of the third sections. This allows for a stable connection of the profile elements to the blanks. Furthermore, a high mechanical load-bearing capacity of the knitting tool bar is achieved.

[0024] Preferably, the second section of the first profile element and the second profile element are inclined toward the plate. The inclination of the second section(s) toward the plate allows for a vibration-friendly state of the profile elements and the knitting tool bar. Furthermore, the inclination results in a knitting tool bar that is mechanically resilient.

[0025] Preferably, the second section of the first profile element is longer than the second section of the second profile element. This allows for easy adaptation of the profile elements, and thus of the weaving tool bar, to different blanks. Furthermore, the load on the weaving tool bar can be adapted to the prevailing load on the blank. Consequently, the profile elements can be made stable and adapted to the mechanical conditions.

[0026] The invention is described below using a preferred embodiment in conjunction with a drawing. In the drawings: Fig. 1 shows a knitting tool bar according to the present invention; Fig. 2 shows a side view of the knitting tool bar;

[0027] Fig. 1shows a knitting tool bar 1 with a first profile element 2 and a second profile element 3. The first profile element 2 and the second profile element 3 hold blanks 4. The blanks 4 are connected to one another by a wire 5. The first profile element 2 and the second profile element 3 each have recesses 6, wherein the recesses 6 of the first profile element 2 and the second profile element 3 lie one above the other in a connected state. The connected state describes a state in which the first profile element 2 is fastened to the second profile element 3 or the first profile element 2 is connected to the second profile element 3 and thus forms a space 15 into which the blanks 4 can be inserted. The space 15 therefore corresponds to the blank holder.

[0028] Fig. 2shows the knitting tool bar 1 in a side view in the direction of extension of the profile elements 2, 3. Each of the profile elements 2, 3 has three sections, which are each arranged at an angle to one another. A first section 7 of the first profile element 2 is arranged on a first section 8 of the second profile element 3 and connected to the latter. A second section 9, 10 extends from the first section 7, 8. The first section 7 of the first profile element 2 is connected to the second section 9 of the first profile element 2. A third section 11 of the first profile element 1 protrudes from the second section 9 of the first profile element 2. Likewise, a second section 10 of the second profile element 3 extends from the first section 8 of the second profile element 3. The third section 12 of the second profile element 3 also extends from the second section 10 of the second profile element 3.

[0029] Essentially, the second and third sections 9-12 of the first profile element 2 and the second profile element 3 form the space 15 in which a first region 13 of the plate 4 is arranged. The first region 13 of the plate 4 is integrally connected to the first profile element 2 and the second profile element 3.

[0030] Opposite the first region 13 is a second region 14, in which the wire 5 is provided. The wire 5 is integrally connected to the circuit board 4.

[0031] The individual sections 7, 9, 11 of the first profile element 2 or 8, 10, 12 of the second profile element 3 are each arranged at an angle to the adjacent section. It should be noted that the third section 11 of the first profile element 2 and the third section 12 of the second profile element 3 are arranged essentially parallel to each other. The two second sections 9, 10 are inclined toward the plate 4.

[0032] The two profile elements 2, 3 are integrally connected to each other at their respective first sections 7, 8. The profile elements 2, 3 can be connected to each other, for example, by an adhesive connection, soldering connection, welding connection, or the like.

[0033] A bonding jig (not shown) is used to insert the blank 4 into the space 15 created by the first profile element 2 and the second profile element 3. The bonding jig allows the blank to be precisely positioned and accurately aligned in the weaving tool bar 1 between the two profile elements 2, 3. Furthermore, as part of the process of securing the blank in the weaving tool bar 1, the blank is glued or otherwise bonded or fixed in a material-to-material bond. This can be done either over a large area or at specific points.

[0034] For example, metal or stainless steel can be used as the material for the profile elements 2 and 3. The selection of the respective material is based on the given environment and the load on the tool bar 1. Fiber-reinforced plastics such as carbon fiber or glass fiber reinforced plastic are also possible.

[0035] Depending on the type and design of the plate 4, the individual sections 7-12 of the profile elements 2, 3 can be adapted. Accordingly, an asymmetrical structure of the profile elements 2, 3 or their sections 7-12 is provided, or a symmetrical structure of the individual sections 7-12. In any case, the profile elements 2, 3 can be designed to achieve a low weight while simultaneously achieving high mechanical strength and low vibration tendency. Accordingly, the wall thicknesses of the profile elements 2, 3 can also vary. Depending on the load and design of the plate, the third sections 11, 12 can be designed differently. This relates, for example, to their length and / or inclination and / or material thickness. List of reference symbols

[0036] 1 Knitting tool bar 2 First profile element 3 Second profile element 4 Circuit board 5 Wire 6 Recess 7 First section of the first profile element 8 First section of the second profile element 9 Second section of the first profile element 10 Second section of the second profile element 11 Third section of the first profile element 12 Third section of the second profile element 13 First area 14 Second area 15 Space

Claims

1. Warp knitting tool bar (1) of a textile machine having a sinker holder for holding a plurality of sinkers (4), the sinker holder having a first profile element (2) and a second profile element (3), wherein the first profile element (2) and the second profile element (3) being connected firmly connected with each other and comprise a space (15) for holding the sinkers (4), characterized in that the sinkers (4) are fastened in a firmly bonded manner in the space (15).

2. Warp knitting tool bar according to claim 1, characterized in that the sinkers (4) are connected by a wire (5).

3. Warp knitting tool bar according to claim 2, characterized in that the wire (5) and the sinkers (4) are connected in a firmly bonded manner.

4. Warp knitting tool bar according to claim 2 or 3, characterized in that the sinkers (4) have a first region (13), in which the sinkers (4) are connected to the sinker holder, and a second region (14) which differs from the first region (13), the sinkers (4) being connected to the wire (5) in the second region (14).

5. Warp knitting tool bar according to claim 4, characterized in that the first region (13) is arranged opposite the second region (14).

6. Warp knitting tool bar according to one of claims 1 to 5, characterized in that the first profile element (2) and the second profile element (3) each have a recess (6), the recess (6) of the first profile element (2) lying one above the other with the recess (6) of the second profile element (3) in a connected state of the profile elements (2, 3).

7. Warp knitting tool bar according to one of claims 1 to 6, characterized in that the first profile element (2) and the second profile element (3) have sheet metal as the main component.

8. Warp knitting tool bar according to one of claims 1 to 7, characterized in that the first profile element (2) and the second profile element (3) have stainless steel as the main component.

9. Warp knitting tool bar according to one of claims 1 to 8, characterized in that the space (15) is limited in a U-shape.

10. Warp knitting tool bar according to one of claims 1 to 9, characterized in that a region of the sinker (4) surrounded by the space (15) is shorter than a region of the sinker (4) protruding from the space (15).

11. Warp knitting tool bar according to one of claims 1 to 10, characterized in that the first profile element (2) and the second profile element (3) each have three sections (7, 9, 11 and 8, 10, 12), wherein the sections (7, 9, 11 and 8, 10, 12) of each profile element (2, 3) are each arranged at an angle to the adjacent section (7, 9, 11 and 8, 10, 12), wherein in the connected state a first section (7) of the first profile element (2) is arranged parallel to a first section (8) of the second profile element (3), and respectively a second section (9, 10) is arranged adjacent to the first section (7, 8), wherein respectively a third section (11, 12) and a first section (7, 8) are arranged on the second section (9, 10).

12. Warp knitting tool bar (1) according to claim 11, characterized in that, in the connected state, the two third sections (11, 12) are arranged substantially parallel and extend the same distance in the direction of the sinker (4).

13. Warp knitting tool bar according to claim 11 or 12, characterized in that the respective second section (9, 10) of the first profile element (2) and of the second profile element (3) is inclined in the direction of the sinker (4).

14. Warp knitting tool bar (1) according to one of claims 11 to 13, characterized in that the second section (9) of the first profile element (2) is longer than the second section (10) of the second profile element (3).