Latch needle structure of compound needle of knitting machine
Through the clamping connection between the needle sheet and the needle guide rod and the design of the needle tongue, the structure of the composite needle tongue needle of the knitting machine is simplified, the problem of high processing difficulty in the prior art is solved, and cost reduction and efficiency improvement are achieved.
Patent Information
- Application Number
- CN202421043879.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The tongue needle structure of the composite needle of the existing knitting machine is difficult to process, resulting in high production costs and low efficiency.
The needle sheet is connected to the needle guide rod by clamping and fixed by welding or extrusion, simplifying the structure, adding the clamping parts of the needle guide rod to reduce processing requirements, and the needle tongue design facilitates the insertion and yarn function of the main needle hook. .
It reduces the difficulty of processing tongue needles, improves production efficiency and yield, and reduces production costs.
Smart Images
Figure CN222294367U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of knitting machines, in particular to a latch needle structure of a compound needle of a knitting machine. Background Art
[0002] A knitting machine is a knitting machine that is mainly used for transverse knitting. It weaves yarn into knitted fabric by controlling the lifting and lowering movement of the knitting needles.
[0003] At present, compound needles are increasingly used in knitting machines. The specified actions are completed through the mutual cooperation of various components in the compound needle. The compound needle generally includes a main needle with a needle hook, and a latch needle that cooperates with the main needle and yarn to complete actions such as looping, looping, gathering, and looping.
[0004] Generally, the latch needle can be arranged in the needle groove of the main needle and move relatively thereto, and two needle pieces are arranged at its end. During the movement relative to the main needle, the needle pieces can be separated from the needle hook of the main needle.
[0005] The function and structure of the latch needle determine that it is difficult to be processed in one piece. Therefore, it is generally divided into a needle guide rod that acts on the driving part, and a needle tongue that acts on the coil and cooperates with the hook needle (the needle tongue includes the two needle pieces mentioned above), such as CN208733302U Figure 2 As shown, the needle guide rod (numbered 4 in the figure) and the two needle plates (numbered 5 and 6 in the figure) are connected by side-engaging riveting, which also has high processing requirements.
[0006] Therefore, the inventor conducted further research on this and developed a latch needle structure for a compound needle of a knitting machine, which resulted in the present invention. Utility Model Content
[0007] The utility model aims to provide a latch needle structure for a compound needle of a knitting machine, which reduces the difficulty of processing and achieves the purpose of reducing costs and increasing efficiency.
[0008] In order to achieve the above purpose, the technical solution of the utility model is as follows:
[0009] The latch needle structure of the compound needle of a knitting machine includes two needle blades and a needle guide rod. A needle latch is arranged at the end of the needle blade, a clamping groove is opened at the end of the needle guide rod, two needle blades are arranged in the clamping groove, and the needle blades and the needle guide rod are connected by clamping; at the same time, the needle latches are relatively expanded outward.
[0010] When the two needle pieces of the latch needle slide in the needle groove of the main needle, the needle tongue slides toward the needle hook through the guidance of the guide needle groove to ensure that it can be separated by the needle hook; and the plug-in connection between the needle piece and the guide needle rod (which can be fixed with the assistance of some welding or extrusion processes) can reduce the processing requirements of the latch needle, thereby reducing the production cost of the latch needle itself and improving the production efficiency of the latch needle.
[0011] Furthermore, the clamping portion of the needle guide rod is provided with a barb portion, and the barb portion is used for being installed in cooperation with the main needle of the compound needle.
[0012] Furthermore, the needle tongue is an extension of the needle sheet, and the side of the needle sheet adjacent to the needle tongue is perpendicular to the length direction of the needle guide rod.
[0013] It is necessary to ensure that the needle has enough distance from the yarn to prevent the yarn from coming off.
[0014] Furthermore, the barb portion is an arc-edge structure that expands first and then contracts from the opening to the inside.
[0015] After adopting the above scheme, the utility model has the following advantages compared with the prior art:
[0016] The structure of the latch needle is simplified, the processing difficulty of producing the latch needle is reduced, and the yield rate and production efficiency are improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic diagram of this embodiment;
[0018] Figure 2 yes Figure 1 Side view of
[0019] Description of symbols
[0020] Latch needle 2, needle piece 21, needle latch 211, needle guide rod 22, barb part 221. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0022] The compound needle generally comprises a main needle and a latch needle, wherein a needle groove is provided on the main needle, and the needle hook of the main needle can separate the two needle blades of the latch needle.
[0023] The latch needle structure of this embodiment is as follows Figure 1 , 2 As shown, it includes two needle sheets 21 and a needle guide rod 22. The end of the needle sheet 21 is provided with a needle tongue 211. The main connection relationship between the two needle sheets 21 and the needle guide rod 22 is clamping, that is, a clamping groove is opened at the end of the needle guide rod 22, and then the two needle sheets are embedded in the clamping groove and are auxiliary fixed by extrusion or welding; the needle tongue 211 can be regarded as an extension of the needle sheet 21, as shown in FIG. Figure 1 As shown, the vertical side adjacent to the needle plate 21 and the needle tongue 211 can be regarded as their dividing line, and this vertical boundary can also enable the needle tongue 211 to better interact with the yarn. Figure 2 As shown, the two needle tongues 211 are slightly expanded outwards, and the gap between them is convenient for the needle hook of the main needle to be inserted.
[0024] The part of the needle guide rod 22 for clamping the needle blade 21 is defined as the clamping part. Figure 1 As shown, a barb portion 221 is provided on the left side of the clamping portion; the barb portion 221 can be engaged with the main needle, and when not subjected to external force, the barb portion 221 can be engaged in the corresponding limiting groove of the main needle (this is also the so-called zero position during knitting, and the entire compound needle is not involved in knitting), and when it needs to participate in knitting, the butt of the latch needle 2 is pushed, and the barb portion 221 is pushed out from the limiting groove of the main needle, thereby causing the needle plate, needle latch and yarn to function.
[0025] The above are only specific embodiments of the present utility model. At the same time, all words such as "upper, lower, left, right, middle" involved in the present utility model are for reference only and are not absolutely limiting. Any non-substantial changes made using the present utility model shall be deemed as an infringement of the protection scope of the present utility model.
Claims
1. The latch needle structure of the compound needle of the knitting machine is characterized by: It comprises two needle pieces and a needle guide rod. The ends of the needle pieces are provided with needle tongues. The ends of the needle guide rod are provided with clamping grooves. The two needle pieces are arranged in the clamping grooves and fixed. Meanwhile, the needle tongues are relatively expanded.
2. The latch needle structure of the compound needle of a knitting machine according to claim 1, characterized in that: The clamping portion of the needle guide rod is provided with a barb portion, and the barb portion is used for being installed in cooperation with the main needle of the compound needle.
3. The latch needle structure of the compound needle of a knitting machine according to claim 1, characterized in that: The needle tongue is an extension of the needle piece, and the side of the needle piece adjacent to the needle tongue is perpendicular to the length direction of the needle guide rod.
4. The latch needle structure of the compound needle of a knitting machine according to claim 1, characterized in that: The hook portion is an arc-edge structure that expands first and then contracts from the opening to the inside.