Knitting needle with open type needle turning piece structure

Abstract

The utility model relates to the field of flat knitting machines, in particular to a knitting needle with an open type needle turning piece structure, which comprises a needle rod, a needle body and a needle turning piece, the needle body is provided with a mounting groove, and the mounting groove is used for arranging a mounting part of the needle turning piece; the needle rod is connected with the needle body, and a containing groove is formed in the needle rod and used for arranging the tip end of the needle turning piece. The needle turning piece is characterized in that the needle turning piece is provided with an arching part, the needle rod or the needle body corresponding to the arching part is provided with a concave part, the arching part and the concave part form a semi-closed trumpet-shaped opening structure, and when the arching part is stressed, the side edge of the arching part can be supported.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of flat knitting machine, especially to a knitting needle with an open structure of a turning piece. BACKGROUND

[0002] A computer flat knitting machine is a double needle plate weft knitting machine. The knitting process is completed by the knitting needle in the needle bed (needle plate) needle groove moving up and down along the needle groove under the cooperation of the cam mechanism and the pulling mechanism during the reciprocating movement of the cam mechanism on the head along the guide rail.

[0003] Among them, the knitting needle includes a composite needle with a needle hook and a latch needle separated, and there is also a common hook needle with the latch needle pivoted below the needle hook. In the structure of the latter, the turning piece (transfer piece) for transferring stitches is arranged on the side of the needle body, the end of which extends to the needle rod below the needle hook and forms a certain gap between the needle rod, that is, the turning piece is used to expand the stitches when the stitches are transferred between the front and back needle beds to facilitate the insertion of the stitch receiving needle.

[0004] Referring to the drawings of CN215404847U, the complete stitch transfer process is shown. In order to solve the problem of the opening of the spring piece (i.e. the turning piece) being too large, the spring piece is designed to have the head of the first arc segment and the part connecting the first arc segment and the second arc segment attached to the bottom wall of the groove, which prevents the spring piece from failing easily. Subsequently, it was found that the outer convex part would still be tilted outward under the influence of the spring force of the spring piece when not working (in a static state), which would hinder the smooth insertion of the opposite knitting needle. Therefore, the applicant designed the outer convex part, which should be linked with the first arc segment, to be attached to the corner step of the needle handle in CN217266261U, which can block the stitches during turning and transferring to prevent the stitches from continuing to slide backward along the knitting needle

paragraph 0029 of the specification

[0005] However, when knitting relatively tight stitches (i.e. small stitch diameter), the turning piece is subjected to a larger pressure from the stitches, which makes the gap between the turning piece and the needle rod too small, making it difficult for the stitch receiving needle (i.e. the opposite knitting needle) to enter the working gap, thereby affecting subsequent processing.

[0006] Therefore, the applicant applied for a knitting needle structure with an open turning piece structure in "2024228969778", which is provided with a wire blocking part at the boundary between the needle body and the needle rod, and in the preferred scheme, a slope is provided on the side of the wire blocking part to maintain the gap between the turning piece and the needle rod for the stitch receiving needle to enter.

[0007] In the subsequent actual production process, the applicant found that although the above technical solution was superior to the existing technology, it still had the following technical problems: under the pressure of the tight loop hanging thread (i.e. the junction between the needle body and the needle bar), there was still a probability that the needle flipping plate could not enter between the needle flipping plate and the needle bar. In the process of many knitting needles and the knitting head knitting back and forth, even a low probability event would definitely occur.

[0008] Therefore, the inventors conducted further research and developed a knitting needle with an open-type flip-needle structure, which led to this invention. Utility Model Content

[0009] The purpose of this invention is to provide a knitting needle with an open-type flip-needle structure, which improves the success rate of high-density loop transfer process, thereby ensuring the knitting quality of the fabric.

[0010] To achieve the above objectives, the technical solution of this utility model is as follows:

[0011] A knitting needle with an open-type reversible plate structure includes a needle bar, a needle body, and a reversible plate.

[0012] The needle body has a mounting groove for mounting the flip-up needle piece;

[0013] The needle bar is connected to the needle body, and a receiving groove is provided on the needle bar for setting the tip of the flipping needle plate;

[0014] The needle plate has an arched part, and the corresponding needle bar or needle body has a recessed part. The arched part and the recessed part form a semi-closed trumpet-shaped opening structure. When the arched part is under pressure, the sides of the arched part will be supported.

[0015] The needle body and needle bar are essentially a single unit, but in order to block the coil, there is a clear difference in width between the two at the dividing point, forming a coil-blocking part. Therefore, they are defined separately by their relative widths to explain the structure. Similarly, the tip and mounting part of the flip-up needle plate are mainly distinguished by their widths.

[0016] From the prior art in the background to the prior application of this case, it can be seen that the technical solution of this invention has matured step by step through continuous production trials, and was not achieved overnight: First, people's requirements for the quality of knitted fabrics are constantly increasing, which puts forward higher requirements for the density of knitting needle distribution and the tightness of the loops. The increase in the density of knitting needle distribution requires the thickness of the knitting needles to be as thin as possible and the running precision to be higher. The tighter the loops, the more easily the thinner knitting needles (turning needle pieces) are subjected to the tension (pressure) of the loops and deformed, which greatly increases the difficulty of shifting loops.

[0017] When transferring stitches, firstly, the large flared opening makes it easy to receive opposing needles; secondly, because the opening is a semi-closed structure, the pressure on the arched part can diffuse to the periphery and be supported, making it difficult for the opening to be flattened.

[0018] Furthermore, the arched portion is formed at the coil hanging point between the tip of the flip-pin piece and the mounting portion, with an inclined arch.

[0019] Once the needle bed and needle plate are set up, the tilt angle of the knitting needles in the working state is fixed. Therefore, the position of the loop waiting to be moved can also be determined. Thus, the width of the loop placement area should be minimized as much as possible. If the loop is placed on the arch, the high-density loop will always be in a taut state, and unnecessary resistance will be added.

[0020] Furthermore, an isolation strip is provided between the receiving groove and the recess, which supports the tip of the flipping needle.

[0021] The receiving groove can extend directly to the recessed part, which is more convenient in processing. However, when a relatively raised isolation strip is set between the two, it can provide further support for the arched part of the tip.

[0022] Furthermore, the upper surface of the isolation strip is consistent with the upper surface of the needle bar, and the isolation strip and the needle bar are designed as a single unit.

[0023] Furthermore, a boss is provided on the adjacent vertical edge between the needle body and the needle bar, and a ramp is provided on the side of the boss facing the mounting groove.

[0024] The protrusion here is designed to facilitate the insertion of the looping needle into the preparation space between the needle flipper and the needle body.

[0025] Furthermore, the upper surface of the boss is consistent with the upper surface of the needle body and needle shank.

[0026] Furthermore, the corresponding needle mounting part between the boss and the mounting groove is provided with a bending part, and the bending part, the boss, and the needle body form a receiving cavity.

[0027] The bent portion protrudes further out of the mounting groove than other parts of the needle flipper mounting portion, meaning the bent portion can better cooperate with the boss to form a receiving cavity between the bent portion and the needle body, preventing the tip of the needle flipper from expanding too far outward.

[0028] Furthermore, one side of the arched portion connects to the needle bar without external force.

[0029] Furthermore, the arched section is formed by an inclined arch from the upper middle section of the mounting section.

[0030] The upper section of the mounting section here refers to the section closest to the needle bar.

[0031] By adopting the above solution, this utility model has the following advantages compared with the prior art:

[0032] Through continuous experimentation and optimization, the structure of the needle-turning piece has been further optimized, thereby ensuring the success rate of loop transfer and improving the knitting quality under tight loop conditions. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of Embodiment 1 of the present utility model;

[0034] Figure 1-1 yes Figure 1 A magnified view of a section at point A in the middle;

[0035] Figure 2 This is a schematic diagram of Embodiment 2 of this utility model;

[0036] Figure 3 This is a schematic diagram of Embodiment 3 of this utility model;

[0037] Figure 4 This is a schematic diagram of the flip-pin piece in Embodiment 4 of this utility model;

[0038] Label Explanation

[0039] The flip-pin piece 1 has a pointed tip 11, an arched part 111, a mounting part 12, and a bending part 121.

[0040] Needle bar 2, receiving groove 21, isolation strip 22;

[0041] Needle body 3, boss 31, recess 4, coil 5. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] Referring to the background art, the knitting needles described in this embodiment all have a needle flipper. Their basic structure includes a narrower needle bar and a wider needle body. The uppermost part is the area where the needle hook is located at the end of the needle bar. A receiving groove is provided on the side below the needle hook. The receiving groove is used to set the tip of the needle flipper. The needle body is located below the needle bar, and a mounting groove is provided on the needle body for setting the mounting part of the needle flipper.

[0044] Example 1:

[0045] like Figure 1 , 1-1As shown, a knitting needle with an open-type flip-up plate structure includes a flip-up plate 1, wherein the mounting part 12 of the flip-up plate 1 is disposed in the mounting groove, the tip part 11 of the flip-up plate 1 is disposed in the receiving groove 21, and a recessed part 4 is also provided between the receiving groove 21 and the mounting groove. The recessed part 4 forms an inclined, curved concave slope at the junction of the needle bar 2 and the needle body 3. The recessed part 4 cooperates with the arched part 111 of its upper tip part 11 to form a transverse trumpet-shaped structure that opens on one side and closes on the other side. The opening side of the opening faces the opposite knitting needle to receive it and exit through the closed opening.

[0046] Since the needle flipping piece 1 itself has a certain elasticity, it is preferable that the arched part 111 of the needle flipping piece 1 is inclined by the flared mouth so that it can contact the needle bar 2 without external force, so that the arched part 111 is already supported by the needle bar 2 in its natural state and is less prone to deformation.

[0047] Meanwhile, in this embodiment, the arched portion 111 is inclinedly arched from the coil hanging position between the tip portion 11 of the flipping needle piece 1 and the mounting portion 12. That is, the position where the coil is hung is contracted relative to the two sides. When the coil is tight, the coil 5 will not always be in a stretched state, and the closing pressure on the flipping needle piece 1 can be reduced.

[0048] In this embodiment, the tip 11 can also be equivalent to the arched portion 111.

[0049] Example 2:

[0050] like Figure 2 As shown, compared with Embodiment 1, this embodiment also provides an isolation strip 22 between the receiving groove 21 and the recessed part 4. The isolation strip 22 is located below the arched part 111, and its upper surface is consistent with the upper surface of the needle bar 2. The isolation strip 22 and the needle bar 2 are designed as an integral piece. The isolation strip 22 further plays a supporting role and can better maintain the shape of the arched part 111.

[0051] Example 3:

[0052] like Figure 3 As shown, in this embodiment, a boss 31 is provided on the adjacent vertical side between the needle body 3 and the needle bar 2. A slope is provided on the side of the boss 31 facing the mounting groove. A bending part 121 is provided above the slope. The bending part, the boss 31, and the needle body 3 form a receiving cavity. This receiving cavity facilitates the insertion of the loop needle from the arched part 111 into the space between the needle flipping piece 1 and the needle body 3.

[0053] The upper surface of the boss 31 here is consistent with the upper surface of the needle body 3 and the needle bar 2, which can support the bending part 121, so that the receiving cavity is closed without pressure, resulting in the connecting needle being subjected to excessive clamping force.

[0054] Example 4:

[0055] like Figure 4 As shown, in this embodiment, the arched portion 111 of the flipping needle plate is opened from the middle and upper section of the mounting portion at an inclined arch, which is equivalent to assimilating the bending portion in Embodiment 3 into the arched portion. The recessed portion can also be extended accordingly, depending on the specific needs, but in essence it is still to facilitate the entry and operation of the connecting needle.

[0056] The above are merely specific embodiments of this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this utility model are for reference only and are not absolute limitations. Any non-substantial modifications made to this utility model shall be considered as infringing upon the protection scope of this utility model.

Claims

1. A knitting needle with an open-type reversible plate structure, comprising a needle bar, a needle body, and a reversible plate. The needle body has a mounting groove for mounting the flip-up needle piece; The needle bar is connected to the needle body, and a receiving groove is provided on the needle bar for accommodating the tip of the needle-turning piece; its characteristic is: The needle plate has an arched part, and the corresponding needle bar or needle body has a recessed part. The arched part and the recessed part form a semi-closed trumpet-shaped opening structure. When the arched part is under pressure, the sides of the arched part will be supported.

2. The knitting needle with an open-type flip-needle structure according to claim 1, characterized in that: The arched part is formed at the coil hanging point between the tip of the flip-pin piece and the mounting part, with an inclined arch.

3. The knitting needle with an open-type turn-over structure according to claim 1, characterized in that: An isolation strip is provided between the receiving groove and the recess, which supports the tip of the flipping needle.

4. The knitting needle with an open-type turn-over structure according to claim 3, characterized in that: The upper surface of the isolation strip is the same as the upper surface of the needle bar, and the isolation strip and the needle bar are designed as a single piece.

5. The knitting needle with an open-type flip-needle structure according to claim 1, characterized in that: A boss is provided on the adjacent vertical edge between the needle body and the needle bar, and a ramp is provided on the side of the boss facing the mounting groove.

6. The knitting needle with an open-type flip-needle structure according to claim 5, characterized in that: The upper surface of the boss is consistent with the upper surface of the needle body and needle bar.

7. The knitting needle with an open-type flip-needle structure according to claim 5, characterized in that: The mounting portion of the flip-pin piece between the boss and the mounting groove is provided with a bending section.

8. The knitting needle with an open-type turn-over structure according to claim 1, characterized in that: One side of the arched part connects to the needle bar without external force.

9. The knitting needle with an open-type flip-needle structure according to claim 1, characterized in that: The arched section is formed by an inclined arch from the middle and upper part of the installation section.

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