CN215517872U

CN215517872U - Latch needle of computerized flat knitting machine

Info

Publication number: CN215517872U
Application number: CN202121869656.9U
Authority: CN
Inventors: 李万明; 谭卫国; 祝喻东
Original assignee: Jiangsu Guomao Knitting Technology Co ltd
Current assignee: Jiangsu Guomao Knitting Technology Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-01-14
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a latch needle of a computerized flat knitting machine, which comprises a needle body, wherein the needle body comprises an upper needle body and a lower needle body, the width of the upper needle body is smaller than that of the lower needle body, a step surface is arranged at the joint of the upper needle body and the lower needle body, an arched reed is fixedly arranged on the wide side surface of the needle body, a needle penetrating hole is formed between the arched reed and the needle body, and the step surface is positioned on one side of the needle penetrating hole; the needle hook and the needle latch are arranged at the head end of the upper needle body, the upper needle body is provided with a needle latch groove, and the needle latch is rotatably connected in the needle latch groove through a needle latch pin; the needle latch is provided with a first magnetic material on the contact surface of the needle latch and the needle hook, the needle hook is provided with a second magnetic material, and the magnetic poles of the first magnetic material and the second magnetic material repel each other. The utility model can lead the coil to be directly penetrated into the needle hook, effectively prevent missed stitches and improve the accuracy and the production efficiency of needle turning.

Description

Latch needle of computerized flat knitting machine

Technical Field

The utility model relates to the field of textiles, in particular to a latch needle of a computerized flat knitting machine.

Background

The computerized flat knitting machine generally has two needle beds, one needle bed near the knitter is a front needle bed, the other needle bed is a back needle bed, knitting needles are arranged on the needle beds on the two sides, and when a machine head reciprocates on a guide rail of the needle beds, the knitting needles do up-and-down motion in needle grooves of the needle beds under the action of a cam device on the machine head, so that yarns are looped and mutually sleeved in a series to be knitted into fabrics.

The knitting needle of the flat knitting machine disclosed in the grant publication No. CN 202766763U comprises a needle head and a needle body, wherein the needle head comprises a needle hook and a needle tongue, the needle body is provided with a spring piece, the spring piece and the needle body form an opening, a step surface is arranged at the joint of the needle head and the needle body, and the opening formed by the spring piece and the needle body can guide the knitting needle at the opposite position to reach a needle overturning position to complete the action of needle overturning (transferring a coil on one needle bed to the knitting needle on the other needle bed). During the needle turning process, a coil is positioned on the step surface of a knitting needle on one side, when a needle head (a hook and a latch) of the knitting needle on the other side moves to the coil through an opening, the coil enters between the hook and the latch, the latch is opened by the coil to enter the hook along with the continuous rising of the knitting needle, and the latch is attached to the knitting needle on the other side along with the movement of the knitting needle, so that the needle turning is completed.

However, the gap between the hook and the latch is very small, and the needle position of the needle must be accurately controlled to open the latch, otherwise, the stitch cannot pass through the gap between the hook and the latch, so that the stitch cannot be transferred to the hook of the other side of the needle, and a part of the stitch is easily not completely transferred to the hook.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a latch needle of a computerized flat knitting machine, which can effectively prevent missed stitches and improve stitch-turning accuracy and production efficiency in the process of transferring stitches and turning stitches.

In order to achieve the technical purpose, the technical scheme of the utility model is as follows:

the latch needle of the computerized flat knitting machine comprises a needle body, wherein the needle body comprises an upper needle body and a lower needle body, the width of the upper needle body is smaller than that of the lower needle body, a step surface is arranged at the joint of the upper needle body and the lower needle body, an arched reed is fixedly arranged on the wide side surface of the needle body, a needle penetrating hole is formed between the arched reed and the needle body, and the step surface is positioned on one side of the needle penetrating hole; the needle hook and the needle latch are arranged at the head end of the upper needle body, the upper needle body is provided with a needle latch groove, and the needle latch is rotatably connected in the needle latch groove through a needle latch pin; the needle latch is provided with a first magnetic material on the contact surface of the needle latch and the needle hook, the needle hook is provided with a second magnetic material, and the magnetic poles of the first magnetic material and the second magnetic material repel each other, so that a gap is formed between the needle latch and the needle hook.

When the needle is turned over, the hook and the latch of the needle of one side needle bed penetrate into the needle penetrating hole of the needle of the other side needle bed, and the coil at the step surface penetrates into the hook through the gap between the latch and the hook along with the movement of the needle, so that the coil can be transferred, and the latch is prevented from being opened by the coil.

The first magnetic material and the second magnetic material repel each other in magnetic poles, and a gap between the latch and the hook is increased, so that the coil can conveniently penetrate through the gap and enter the hook, and the latch is prevented from being opened by the coil.

The wide side of the needle body is provided with a first groove, and a needle penetrating hole is formed by the first groove and the arched reed. The first groove is used for ensuring that the end part of the latch needle can penetrate into the needle penetrating hole and reducing the thickness of the knitting needle.

The needle body is provided with a second groove and a third groove, the head end of the bow-shaped reed is arranged in the second groove, and the tail end of the bow-shaped reed is fixedly arranged in the third groove. The second groove and the third groove enable two ends of the arched reed to be embedded into the needle body, and the coil can be prevented from being hooked by the reed.

And the needle body is provided with an inclined plane at the needle inserting side of the needle penetrating hole. The bevel may guide the needle through the needle penetration hole.

The tail end of the lower needle body is provided with a needle tail, and a frame-shaped gap is formed at the joint of the needle tail and the lower needle body. The connecting surface of the frame-shaped gap and the lower needle body is a cambered surface bent towards the needle body. The frame-shaped notch is used for matching the long needle, so that the knitting needle is pushed (pulled back) to a corresponding position through the long needle. The structural characteristic that the opening of the frame-shaped gap is small and the bottom is large can ensure that the long needle always forms a matching relation with the knitting needle when a certain amount of vertical jumping is generated.

According to the utility model, the distance between the latch and the hook is increased through the first magnetic material and the second magnetic material, so that the coil can directly penetrate into the hook, the missing stitch can be effectively prevented, and the stitch turning accuracy and the production efficiency are improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic front view of the present invention.

FIG. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic view of the cross-sectional structure C-C in fig. 2.

Detailed Description

As shown in fig. 1-3, the latch needle of the computerized flat knitting machine comprises a needle body, wherein the needle body comprises an upper needle body 2 and a lower needle body 1, the width of the upper needle body 2 is smaller than that of the lower needle body 1, so that a step surface 5 is arranged at the joint of the upper needle body 2 and the lower needle body 1, an arched reed 4 and a first groove 44 are fixedly arranged on the wide side surface of the needle body, a needle threading hole 6 is formed on the arched reed 4 and the first groove 44, and the step surface 5 is positioned on one side of the needle threading hole 6. The needle body is provided with an inclined surface 43 at the needle inserting side of the needle penetrating hole 6.

The needle body is provided with a second groove 41 and a third groove 42, the head end of the arched reed 4 is arranged in the second groove 41, and the tail end of the arched reed 4 is fixedly arranged in the third groove 42.

The needle hook 21 and the needle latch 22 are arranged at the head end of the upper needle body 2, the needle latch groove is formed in the upper needle body 2, and the needle latch 22 is rotatably connected in the needle latch groove through a needle latch pin 23; on the contact surface of the latch 22 and the hook 21, the latch 22 is provided with a first magnetic material 221, the hook 21 is provided with a second magnetic material 211, and the first magnetic material 221 and the second magnetic material 211 have magnetic poles which repel each other, so that a gap is formed between the latch 22 and the hook 21.

The tail end of the lower needle body 1 is provided with a needle tail 3, a frame-shaped gap 31 is arranged at the joint of the needle tail 3 and the lower needle body 1, and the connecting surface of the frame-shaped gap 31 and the lower needle body 1 is an arc surface bent towards the needle body.

When the needle is turned over, the hook 21 and the latch 22 of the back needle bed knitting needle firstly penetrate into the needle passing hole 6 of the front needle bed knitting needle, and along with the movement of the knitting needle, the coil at the step surface 5 penetrates into the hook 21 through a gap between the latch 22 and the hook 21, so that the coil can be transferred.

The first recess 44 of this embodiment is used to ensure that the latch needle end can penetrate the needle hole and reduce the thickness of the needle.

The second groove 41 and the third groove 42 of this embodiment embed both ends of the arched reed 4 in the needle body, so as to prevent the reed from hooking the coil.

The frame-shaped notch 31 of the present embodiment is used to engage the long needle, thereby pushing (pulling) the knitting needle to a corresponding position by the long needle. The structural characteristics of the frame-shaped gap 31 that the mouth is small and the bottom is large can ensure that the long needle always forms a matching relation with the knitting needle when a certain amount of vertical jumping is generated.

According to the utility model, the distance between the latch 22 and the hook 21 is increased through the first magnetic material 221 and the second magnetic material 311, so that the gap between the latch 22 and the hook 21 is increased, a coil can directly penetrate into the hook 21, needle leakage can be effectively prevented, and needle turning accuracy and production efficiency are improved.

The above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. The latch needle of the computerized flat knitting machine is characterized by comprising a needle body, wherein the needle body comprises an upper needle body (2) and a lower needle body (1), the width of the upper needle body (2) is smaller than that of the lower needle body (1), a step surface (5) is arranged at the joint of the upper needle body (2) and the lower needle body (1), an arched reed (4) is fixedly arranged on the wide side surface of the needle body, a needle penetrating hole (6) is formed between the arched reed (4) and the needle body, and the step surface (5) is positioned on one side of the needle penetrating hole (6); the needle hook (21) and the needle tongue (22) are arranged at the head end of the upper needle body (2), the needle tongue groove is formed in the upper needle body (2), and the needle tongue (22) is rotatably connected into the needle tongue groove through a needle tongue pin (23); on the contact surface of the latch (22) and the hook (21), the latch (22) is provided with a first magnetic material (221), the hook (21) is provided with a second magnetic material (211), and the magnetic poles of the first magnetic material (221) and the second magnetic material (211) repel each other, so that a gap is formed between the latch (22) and the hook (21).

2. The latch needle of the computerized flat knitting machine according to claim 1, wherein: the wide side of the needle body is provided with a first groove (44), and a needle penetrating hole (6) is formed by the first groove (44) and the arc reed (4).

3. The latch needle of the computerized flat knitting machine according to claim 1, wherein: the needle body is provided with a second groove (41) and a third groove (42), the head end of the arched reed (4) is arranged in the second groove (41), and the tail end of the arched reed (4) is fixedly arranged in the third groove (42).

4. The latch needle of the computerized flat knitting machine according to claim 1, wherein: the needle body is provided with an inclined plane (43) at the needle inserting side of the needle penetrating hole (6).

5. The latch needle of the computerized flat knitting machine according to claim 1, wherein: the tail end of the lower needle body (1) is provided with a needle tail (3), and a frame-shaped gap (31) is arranged at the joint of the needle tail (3) and the lower needle body (1).

6. The latch needle of the computerized flat knitting machine according to claim 5, wherein: the connecting surface of the frame-shaped notch (31) and the lower needle body (1) is a cambered surface bent towards the needle body.