Flat knitting machine sinker mounting structure

Abstract

The utility model relates to the field of flat knitting machines, in particular to a flat knitting machine sinker mounting structure, which comprises sinkers arranged along a needle bed mouth part, the sinkers are distributed in a knitting area of the needle bed mouth part, the flat knitting machine sinker mounting structure also comprises spacing pieces, the sinkers and the spacing pieces are arranged at intervals, and the sinkers are mounted on the spacing pieces; the sinker comprises a needle butt part, a thread pressing part, a rotating part and a connecting part, the rotating part is arranged below the connecting part, and the needle butt part and the thread pressing part are arranged on the two sides of the connecting part; the bottom of the rotating part is a rotating arc; the top of the connecting part is a limiting arc; limiting grooves are formed in the tops of the spacing pieces, and limiting pieces are arranged in the limiting grooves. And when the sinker swings, the limiting arc and the limiting piece arranged on the spacing piece are always in a tangent state. By the adoption of the scheme, installation can be easy and convenient, and the jamming phenomenon cannot occur during operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of flat knitting machines, in particular to a flat knitting machine sinker mounting structure. BACKGROUND

[0002] A sinker is a kind of accessory for knitting machines. When used on a double needle bed of a computer flat knitting machine, the sinker is arranged beside each needle. The sinker is arranged on a spacer and isolated from each other by the spacer. The sinker controls the old loops and new yarn on each needle and assists the needle in loop withdrawal. The sinker can rotate relative to the needle bed opening to create space for loop formation.

[0003] The sinker is generally arranged between the needles on the needle bed of the flat knitting machine and swings around the needle plate hole side near the fulcrum. The cam mechanism arranged on the slide drives the push piece to drive the heel of the sinker (also known as the driving part) to enter or exit the needle plate hole.

[0004] There is no industry standard for sinkers. Therefore, under the premise of having basic functions, sinkers have various structures according to the design ideas of technicians and the required functions. For example, the sinker disclosed in WO2022248143A1 Groz-Beckert Company has a relatively square overall shape. There are also sinkers with return springs, such as the sinker disclosed in CN218507988U Island Precision Machine Company. There are also relatively wide sinkers, such as the sinkers disclosed in CN202298045U and CN202227057U of Ningbo Cixing Company. In CN115573088A (Comparative Document 1), the applicant improved a series of sinkers of Island Precision Machine Company. However, the sinker is complex to process and install and is inconvenient to disassemble, maintain, and repair.

[0005] Therefore, the inventor has made further research and developed a flat knitting machine sinker mounting structure, which gives rise to the present case. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide a flat knitting machine sinker mounting structure, which is easy to install and does not get stuck during operation.

[0007] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0008] A flat knitting machine sinker mounting structure includes sinkers arranged along the needle bed mouth part. The sinkers are distributed in the knitting area of the needle bed mouth part. The structure also includes spacers. The sinkers and spacers are arranged at intervals, and the sinkers are mounted on the spacers. The sinker includes a heel, a presser foot, a rotating part, and a connecting part. The rotating part is arranged below the connecting part, and the heel and presser foot are arranged on both sides of the connecting part. The bottom of the rotating part is a rotating arc, and the top of the connecting part is a limiting arc.

[0009] The spacer piece is provided with a limiting slot at the top, and a limiting member is arranged in the limiting slot.

[0010] When the sinker swings, the limiting arc and the limiting member arranged on the spacer piece are always in tangential state.

[0011] In the above technical solution, the needle butt part and the line pressing part can be designed conventionally, the needle butt part is driven to swing the sinker, and the line pressing part acts on the yarn, and the specific structure thereof can be determined according to requirements.

[0012] The rotating part is the “pivot point” of the entire sinker, and the specific structure of each sinker will result in different positions and shapes of the “pivot point”, and in the concept of the case, it is close to a whole circle (part of which overlaps with the connecting part).

[0013] When the limiting arc and the limiting member are in real-time tangential state when the sinker swings, it can be ensured that the sinker will not be stuck by the limiting member when it swings.

[0014] Further, the limiting member is a plug gauge or a steel wire.

[0015] The plug gauge and the steel wire are common limiting members of the sinker; if the limiting member is a cylindrical steel wire, the limiting arc is tangent to the outer surface of the steel wire; if the limiting member is a plug gauge, the limiting arc is tangent to the lower surface of the plug gauge.

[0016] Further, the centers of the rotating arc and the limiting arc coincide.

[0017] That is, when the needle butt is driven to swing, the top of the connecting part will be limited by the plug gauge, but since the arc bottom of the rotating part (the rotating arc) and the arc top of the connecting part (the limiting arc) share a center, there will be no jamming phenomenon; and based on this structure, it is also more convenient to install and disassemble the sinker; it belongs to a specific embodiment of the above concept.

[0018] Further, the radius r corresponding to the rotating arc is smaller than the radius R corresponding to the limiting arc, and the ratio of R:r is in the range of 1.5-3:1.

[0019] Further, the angle corresponding to the rotating arc is greater than or equal to 200°.

[0020] Further, the angle corresponding to the limiting arc is less than or equal to 80°.

[0021] Further, the line pressing part and the rotating part include a straight edge.

[0022] The straight edge is used to cooperate with the needle bed to limit the depression amplitude of the line pressing part.

[0023] Further, the outer arc edge of the line pressing part is provided with a line pressing groove.

[0024] The wire pressing groove is a key structure of the wire pressing part for affecting the yarn.

[0025] Further, the swing range of the sinker is 15-25°.

[0026] After the above scheme is adopted, compared with the prior art, the utility model has the following advantages:

[0027] The needle butt part and the wire pressing part are provided with connecting parts on both sides of the limiting arc and the limiting piece is always in a tangential state, so that the sinker runs more stably when swinging and the connecting part will not be stuck. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic view of the utility model arranged on a needle bed;

[0029] Figure 2 is Figure 1 a schematic view of the utility model after removing the knitting needle;

[0030] Figure 3 is Figure 2 a partial enlarged view of A in the utility model;

[0031] Figure 4 is a schematic view of a sinker;

[0032] Figure 5 is a schematic view of the rotating arc radius r and the limiting arc radius R;

[0033] REFERENCE NUMERALS

[0034] Spacer 1, limiting groove 11;

[0035] Sinker 2, rotating part 21, rotating arc 211, connecting part 22, limiting arc 221,

[0036] Flat edge 222, needle butt part 23, wire pressing part 24, wire pressing groove 241;

[0037] Knitting needle 3, needle bed 4. DETAILED DESCRIPTION

[0038] The utility model will be further described below in combination with the drawings and specific embodiments.

[0039] As Figure 1 , 2As shown in the figure, a sinker mounting structure for a flat knitting machine, applied to a flat knitting machine, comprises a sinker and a spacer, the sinker and the spacer are arranged at intervals, and the sinker is mounted on the spacer; the sinker is arranged beside each needle 3 (the needle 3 is arranged on the needle bed 4), the sinker is arranged on the spacer and is isolated from each other through the spacer, controls the old loop and the new yarn on each needle, assists the needle to drop the loop, and is rotatable relative to the needle bed opening to open and give a position to form a loop.

[0040] As Figure 3 shown, the top of the left and right spacers is provided with a limiting groove 11, which is essentially two structures of the limiting groove. The limiting groove 11 on the left side is provided with a cylindrical steel wire, and the limiting groove 11 on the right side can be fitted with a plug gauge. The steel wire and the plug gauge are used for mounting and positioning the sinker.

[0041] The sinker comprises a needle butt part 23, a pressing line part 24, a rotating part 21 and a connecting part 22. There is no obvious boundary between the above-mentioned parts, only the pressing line part 24 and the connecting part 22 form a step structure for avoiding the needle due to the need of moving between the needles, which is described in the background art mentioned in the comparative document 1, which will not be expanded here.

[0042] In Figure 4 the figure, the needle butt part 23 is located on the right side, which can make the sinker swing under force, the pressing line part 24 is located on the left side, which is used for acting on the yarn; the rotating part 21 is located below, when the needle butt part 23 is under stress, it swings around the rotating part 21 as the axis; and the connecting part 22 is between the needle butt part 23, the pressing line part 24 and the rotating part 21.

[0043] Among the above-mentioned parts, the pressing line part 24 and the needle butt part 23 only need to perform their basic functions, the needle butt part 23 has a structure that can be actuated, and the outer arc edge of the pressing line part 24 has a pressing line groove 241 for pressing the line; the bottom of the connecting part between the pressing line part 24 and the rotating part is a flat edge 222, which is used to limit the depression amplitude of the pressing line part 24.

[0044] The rotating arc 211 at the bottom of the rotating part 21 and the limiting arc 221 at the top of the connecting part 22 share a common center, as Figure 5As shown, the radii of the two arc segments are marked as r and R, and with the scale in the drawing as reference, R:r is about 2.4:1, the angle corresponding to the rotating arc 211 is about 255°, and the angle corresponding to the limiting arc 221 is about 60°. Since the radius of the rotating arc 211 is small, the rotating angle is large, while the radius of the limiting arc 221 is large, and the swinging angle is small, and both of them are the same center, when the sinker works, the swinging range of the sinker is 20°, in this process, whether the plug gauge or the steel wire is used as the limiting piece, the limiting arc of the sinker is always in the tangential state with the plug gauge or the steel wire, so the sinker will not be blocked by the spacer 1, and when disassembling, the plug gauge or the steel wire in the spacer is removed, and the sinker can be replaced, so compared with the existing sinker structure, the operation is more balanced and stable, and the disassembly is more convenient.

[0045] The above is only a specific embodiment of the present application, meanwhile, all the words such as "upper", "lower", "left", "right", "middle" and the like involved in the present application are only for reference, not absolute limitation, and any non-substantial change made by using the present application shall belong to the behavior of infringing the protection scope of the present application.

Claims

1. A sinker mounting structure for a flat knitting machine, comprising sinkers arranged along a needle bed mouth portion, the sinkers being distributed in a knitting area of the needle bed mouth portion, characterized in that: The spacer is provided between the sinker and the spacer, and the sinker is installed on the spacer; the sinker comprises a needle butt, a thread pressing part, a rotating part and a connecting part, the rotating part is arranged below the connecting part, and the needle butt and the thread pressing part are arranged on both sides of the connecting part; the bottom of the rotating part is a rotating arc, and the top of the connecting part is a limiting arc; A limiting groove is formed in the top of the spacer, and a limiting piece is arranged in the limiting groove; When the sinker swings, the limiting arc and the limiting piece arranged on the spacer are always tangent.

2. The sinker mounting structure of the flat knitting machine according to claim 1, characterized in that: The limiting piece is a plug gauge or a steel wire.

3. The sinker mounting structure of the flat knitting machine according to claim 1, characterized in that: The centers of the rotating arc and the limiting arc coincide.

4. The sinker mounting structure of the flat knitting machine according to claim 1, characterized in that: The radius r corresponding to the rotating arc is smaller than the radius R corresponding to the limiting arc, and the ratio of R:r is in the range of 1.5-3:

1.

5. The sinker mounting structure of the flat knitting machine according to claim 1, characterized in that: The angle corresponding to the rotating arc is greater than or equal to 200°.

6. The sinker mounting structure of the flat knitting machine according to claim 1, characterized in that: The angle corresponding to the limiting arc is less than or equal to 80°.

7. The sinker mounting structure of the flat knitting machine according to claim 1, characterized in that: A straight edge is arranged between the thread pressing part and the rotating part.

8. The sinker mounting structure of the flat knitting machine according to claim 1, characterized in that: An outer arc edge of the thread pressing part is provided with a thread pressing groove.

9. The sinker mounting structure of the flat knitting machine according to claim 1, characterized in that: The swing range of the sinker is 15-25°.

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