Needle bed structure of flat knitting machine

Abstract

The utility model discloses a needle bed structure of a flat knitting machine, which comprises a plurality of inserting pieces fixed on a needle bed, a needle groove is formed between two adjacent inserting pieces, and a knitting needle is arranged in the needle groove. The side face of the knitting needle is provided with a reed with protrusions, and the reed is driven by a driving mechanism to move in the needle groove. A notch is formed in the front end of the inserting piece, and when the knitting needle moves backwards relative to the inserting piece, the protrusion of the knitting needle reed moves in the notch. According to the utility model, the reed does not need to be pressed, so that the problems of metal fatigue and difficult control are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of knitting machinery, in particular to a needle bed structure of a flat knitting machine. Background Art

[0002] During the knitting process, the knitting machine has a coil transfer action, that is, the coil is transferred from one knitting needle to another opposite knitting needle. In order to complete the coil transfer action, there is a spring on the side of the knitting needle, so that the opposite knitting needle can be inserted into the cavity formed by the protrusion of the spring and the knitting needle body, and the coil is moved to the opposite knitting needle after the spring is opened to further expand the coil. When the knitting needle performs other knitting actions, such as forming a loop, the knitting needle needs to move downward and enter the needle groove; because there is a protruding spring on the side of the knitting needle, the thickness of the knitting needle is increased, which often exceeds the width of the needle groove. At this time, it is necessary to squeeze the spring to compress the spring so that the knitting needle can enter the needle groove.

[0003] The above-mentioned prior art has two defects. On the one hand, the long-term compression and release of the reed will affect its material properties and shorten the service life of the knitting needle. On the other hand, this usage method requires greater force to drive the knitting needle in and out of the needle groove, that is, a more powerful motor is required, and at the same time, the stroke of the knitting needle needs to be controlled very accurately, which increases the difficulty of motion control. Summary of the invention

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a needle bed structure of a flat knitting machine.

[0005] To this end, the technical solution adopted by the utility model is as follows: the needle bed structure of the knitting machine includes a plurality of inserts fixed on the needle bed, a needle groove is formed between two adjacent inserts, and a knitting needle is arranged in the needle groove; the side of the knitting needle has a spring with a protrusion, which moves in the needle groove under the drive of a driving mechanism; it is characterized in that: the front end of the insert has a notch, and when the knitting needle moves backward relative to the insert, the protrusion of the knitting needle spring moves in the notch.

[0006] The width of the notch on the insert is not less than the width of the reed protrusion, so as to accommodate the reed protrusion; the depth of the notch is related to the thickness and material strength of the insert, and different machine models can have different depths, so as not to affect the function of the insert as the side wall of the needle slot. At the same time, the backward movement stroke of the knitting needle depends on the machine model and the knitted fabric pattern. In most cases, the depth of the notch is greater than the stroke of the knitting needle, that is, the protrusion of the knitting needle reed always moves in the notch without being squeezed.

[0007] It can be seen that, by adopting the utility model, the spring does not need to be compressed, thereby avoiding the problems of metal fatigue and difficulty in control. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of this embodiment.

[0009] Figure 2 It is a schematic diagram of the plug.

[0010] Figure 3 It is a schematic diagram of the insert and knitting needles.

[0011] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0012] See the attached drawings. This embodiment includes a needle bed 1, on which a plurality of parallel inserts 2 are fixed, two adjacent inserts form a needle slot, and each needle slot is provided with a knitting needle 3. The front end of each insert 2 has a notch 21, and the side of each knitting needle has a spring, and the spring has a protrusion 31. When the knitting needle moves, the protrusion 31 moves in the notch 21. Figure 3 The figure shows the end point of the knitting needle moving backward relative to the insert. It can be seen that at this time, the protrusion 31 has not yet contacted the notch 21, that is, the spring has not yet been compressed.

Claims

1. The needle bed structure of a flat knitting machine comprises a plurality of inserts fixed on the needle bed, a needle groove is formed between two adjacent inserts, and a knitting needle is arranged in the needle groove; the knitting needle has a spring with a protrusion on the side surface, and moves in the needle groove under the drive of a driving mechanism; the characteristics are: The front end of the inserting piece is provided with a notch, and when the knitting needle moves backward relative to the inserting piece, the protrusion of the knitting needle spring moves in the notch.

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