Flat knitting machine with supported stitch forming plate

Abstract

The invention relates to a flat knitting machine with at least one needle bed 100, which has at least one guide channel in which a stitch pattern 2 and a hold-down plate 1 are arranged, wherein the hold-down plate 1 has a support section 11 arranged in the area of ​​a needle bed tip 103 for at least indirect support of the stitch pattern 2 in the longitudinal direction of the needle bed.

Description

[0001] The invention relates to a knitting machine with at least one needle bed, which has at least one guide channel in which a stitch pattern and a hold-down plate are arranged.

[0002] Flat knitting machines often use needle beds with integrated stitch patterns that have a stitch-forming edge towards the heddle. A stitch pattern and a hold-down plate are frequently inserted in a groove provided for this purpose at the front tip of the needle bed.

[0003] For example, a hold-down plate is known from CN 208667989 U, which has large recesses on its underside. The lateral support of the stitch pattern and the needle by the hold-down plate is therefore very far from the stitch formation edge of the stitch pattern or the needle hook. When using such hold-down plates, there is a risk that the stitch patterns will be displaced in the area of ​​these recesses during winding due to the rearward displacement of the support, i.e., they will move perpendicular to the direction of needle movement or in the longitudinal direction of the needle bed. Such movement is undesirable.

[0004] The object of the present invention is therefore to provide a flat knitting machine in which stitch patterns and thus stitch formation edges are positioned in a fixed location and at a precise pitch distance and remain in this position during the stitch formation process.

[0005] According to the invention, this problem is solved by a flat knitting machine with at least one needle bed, which has at least one guide channel in which a stitch pattern and a hold-down plate are arranged, wherein the hold-down plate has a support section arranged in the region of a needle bed tip for at least indirectly supporting the stitch pattern in the longitudinal direction of the needle bed. This support of the stitch pattern allows it to remain largely stationary, particularly during the stitch formation process. In particular, movement in the longitudinal direction of the needle bed or transversely to the needle movement direction can be prevented. The stitch pattern can be supported directly on the hold-down plate. However, it is also conceivable that the stitch pattern is supported on the hold-down plate via a further element. In particular, the stitch pattern is supported in the region of the stitch formation edge.A support-free area is avoided. The support is not shifted backwards from the ridge gap, but is located near the ridge gap.

[0006] The guide channel in the needle bed can be formed, for example, by milling a groove into the needle bed. Alternatively, a rib, particularly a main rib, can be inserted into a milled groove in the needle bed, its stepped tip forming a guide channel for the stitch pattern and the hold-down plate. It is also conceivable that a rib, particularly a main rib, is inserted into a milled groove in the needle bed, but without a stepped tip to form a guide channel for the stitch pattern and the hold-down plate. Instead, a separate insert is used as a filler piece. The guide channel for the stitch pattern and hold-down plate is then formed by a separate filler piece on one side and by a milled wall on the other.

[0007] Furthermore, it is conceivable that a separately milled groove is provided in the area near the comb gap, which serves as a guide groove for mesh patterns and hold-down plate.

[0008] In the needle bed, particularly in its front area near the comb gap, a needle, a hold-down plate, and a stitch pattern can be arranged side by side. The needle and the hold-down plate can be movable relative to the needle bed. In particular, they can be movable transversely to the longitudinal direction of the needle bed.

[0009] The hold-down plate can have a support section, particularly below its contact area with the knitted fabric. This support section can extend towards the heddle and downwards from the needle bed. It can cover at least most of the adjacent stitch pattern. The support section can also be located in the area of ​​a needle hook. The support section increases the effective area of ​​the hold-down plate relative to the stitch pattern, thereby reducing the clearance between the stitch pattern and the needle (or needle bed) towards the heddle. This prevents the stitch pattern from shifting, or reduces its movement to a negligible extent, perpendicular to the needle bed's longitudinal direction. The support section stabilizes the stitch pattern in its predetermined position during the needle's winding process.

[0010] To achieve the broadest possible support for the stitch pattern, the support section can extend to an edge of the needle bed near the comb gap. An edge near the comb gap is an edge at the very front of the needle bed, where the comb gap begins.

[0011] The support section can be positioned below a needle rest. This allows the stitch pattern to be supported below the needle arrangement.

[0012] The contour of the support section can be adapted to the contour of the needle bed tip and / or a bridge tip. The optional bridge acts as a guide for the needle. When the support section is adapted to the contour of the needle bed tip and / or the bridge tip, it has the largest possible surface area to support the stitch pattern.

[0013] The support section can be congruent with the needle bed apex, especially when viewed in the longitudinal direction of the needle bed. This also ensures the largest possible surface area for the support section.

[0014] The hold-down plate can be positioned with its support section between a needle and the stitch pattern. This allows for particularly good stabilization of the stitch pattern.

[0015] The hold-down plate can have a recess for yarn pulled through by a needle. This allows yarn to be held through the recess and prevents it from distorting the stitch pattern.

[0016] The stabilization of the stitch pattern can advantageously take place during the needle's winding process, if the hook space of the needle is congruent with the stitch pattern.

[0017] Furthermore, a separate filler piece can be arranged in the guide channel for the hold-down plate and the mesh pattern. This separate filler piece can serve to provide additional support for the mesh pattern. In particular, two adjacent main webs can form the guide channel in which a filler piece is arranged. If the main webs do not have a stepped web tip, the separate filler piece provides one-sided support for the mesh pattern.

[0018] Further advantages of the invention will become apparent from the description and the drawing. Likewise, the features mentioned above and those described in more detail below can each be used individually or in any combination according to the invention. The embodiments shown and described are not to be understood as an exhaustive list, but rather serve as examples for illustrating the invention.

[0019] They show: Fig. 1a a partial side view of a needle bed; Fig. 1 legs of the Figure 1a corresponding illustration with retracted needle; Fig. 1 a top view of the needle bed; Fig. 2 a side view of a retaining plate.

[0020] The Figure 1a Figure 100 shows the front section of a needle bed in a side view. A flat knitting machine typically has another, opposite needle bed of the same design. The two needle beds are separated by a comb gap (KS).

[0021] A groove 102 is milled into the needle bed 100, in which a rib 3, also referred to as the main rib, is arranged. The rib 3, together with another adjacent rib, forms a guide channel for a needle 4. In the area near the comb gap, a recessed rib tip of the rib 3, together with the milled groove 102 in the needle bed 100, forms a guide channel for a hold-down plate 1 and a mesh pattern 2. The hold-down plate 1 has a support section 11 for supporting the mesh pattern 2.

[0022] The support section 11 is arranged below the needle 4. In particular, the support section 11 supports the stitch pattern 2 in the direction of the needle bed longitudinal axis. The needle bed longitudinal axis runs perpendicular to the plane of the drawing. The support section 11 of the hold-down plate 1, which is located below the needle support 101 (formed by the base of the guide channel), follows the contour of the needle bed tip 103 or the web tip 31 ( Fig. 1c) adapted. In particular, it is congruent with it. If a (main) bridge is provided, its tip 31, in particular its front contour, corresponds to the needle bed tip 103. The needle bed 100 has a comb-slit edge 103' in the region of the needle bed tip 103.

[0023] In the illustration shown, needle 4 is in a retracting motion in the direction of arrow R, with the needle hook 41 in this position being congruent with the stitch-forming edge 21 of the stitch pattern 2. During a further movement in the direction of arrow R, needle 4 draws yarn (not shown here) into the guide channel. This yarn is supported by the stitch-forming edge 21. The stitch pattern 2 is supported by the forward-projecting contour of the hold-down plate 1, so that the stitch pattern 2 can only move laterally to a very limited extent and is essentially stationary during the winding process.

[0024] The presentation of Figure 1bIt can be seen that needle 4, compared to the Figure 1a has continued moving in the direction of arrow R and is now in a deep crouch position.

[0025] The holding plate 1 has a recess 12 so that the inserted yarn cannot get stuck in this area and can expand to the stitch pattern 2.

[0026] The Figure 1cFigure 1 shows a top view of part of the needle bed 100 of a flat knitting machine. The hold-down plate 1 is shown in section at the level of needle 4. It can be seen that the lateral support of the stitch pattern 2 and the needle 4 by the hold-down plate 1 is congruent with the needle bed tip 103 and the bar tip 31, respectively. This means that the stitch pattern 2 is supported at the very front of the needle bed tip 103 and the bar tip 31. Compared to the prior art, the support of the stitch-forming edge 21 (not visible in this view) and the needle hook 41 by the hold-down plate 1 has thus been shifted towards the heddle gap KS, resulting in significantly improved support of the stitch pattern 2 and the needle 4. The front edges 16, 103', 21' of the support section 11 of the hold-down plate 1, the needle bed tip 103 respectively, in the direction of the comb gap KS,The needle bed tip 31 and the stitch pattern 2 are in the same position, without offset perpendicular to the longitudinal direction of the needle bed (21' is not visible in the view). The hold-down plate 1 is arranged with its support section 11 between the needle 4 and the stitch pattern 2.

[0027] The Figure 2 Figure 1 shows a side view of the hold-down plate 1. The hold-down plate 1 has a through-opening 13. The through-opening 13 represents a pivot point. The hold-down plate 1 can be acted upon at a control foot 14 and thereby pivoted about the pivot axis formed by the through-opening 13. In the Figure 1a, 1bIn the position shown, the hold-down plate 1 is in an open position. By applying pressure to the control foot 14, the hold-down plate 1 can be pivoted clockwise into a closed position. It can be seen that the hold-down plate 1 has a recess 12 for receiving yarn. The recess 12 is located between a lug 15 and the support section 11. The support section 11 is thus directly adjacent to the recess 12. The front edge 16 of the lower area of ​​the hold-down plate 1 or the support section 11, directly adjacent to the recess 12, is modeled on the shape of the needle bed tip 103 or the web tip 31 and, particularly when the hold-down plate 1 is installed in its open position, is congruent with the needle bed tip 103 or web syringe 31.

[0028] During the culling process, the holding plate 1 is in its open position.

[0029] The recess 12 is relatively narrow and forms a kind of channel for receiving yarn when the needle 4 is culled.

[0030] An imaginary line extending from the lower edge 17 of the retaining plate lies below the tip 18 of the nose 15.

Claims

1. Flat knitting machine with at least one needle bed (100) which has at least one guide channel in which a stitch pattern (2) and a hold-down plate (1) are arranged, characterized by the fact that the hold-down plate (1) has a support section (11) arranged in the area of ​​a needle bed tip (103) for at least indirect support of the mesh pattern (2) in the longitudinal direction of the needle bed.

2. Flat knitting machine according to claim 1, characterized by the fact that the support section (11) extends to a ridge-split edge (103') of the needle bed (100).

3. Flat knitting machine according to one of the preceding claims, characterized by the fact that the support section (11) is arranged below a needle support 101.

4. Flat knitting machine according to one of the preceding claims, characterized by the fact that the contour of the support section (11) is adapted to the contour of the needle bed tip (103) and / or a bridge tip (31).

5. Flat knitting machine according to one of the preceding claims, characterized by the fact that the support section (11) is congruent with the needle bed tip (103).

6. Flat knitting machine according to one of the preceding claims, characterized by the fact that the hold-down plate (1) with its support section (11) is arranged between a needle (4) and the stitch pattern (2).

7. Flat knitting machine according to one of the preceding claims, characterized by the fact that the retaining plate (1) has a recess (12) for a yarn drawn in by a needle (4).

8. Flat knitting machine according to one of the preceding claims, characterized by the fact that A separate filler piece is arranged in the guide channel for the retaining plate (1) and the mesh patterns (2).

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