Knitting needle and needle plate assembly thereof

Abstract

The knitting needle comprises a needle body, one side face, close to the head, of the needle body is provided with a guide groove with an opening in the lower portion, and the groove wall, away from one side of the tail, of the guide groove is obliquely lifted until the groove wall is smoothly connected with the surface of the needle body; the needle rod is provided with a first end and a second end, the first end is connected with the head of the needle body, one side of the needle rod is sunken inwards to form a needle turning groove with an opening in the lower portion, and the needle turning groove is communicated with the guide groove; the needle hook is connected to the second end of the needle rod; the needle latch is connected to the second end of the needle rod in a turnover mode, and one side of the needle latch protrudes towards the side where the groove bottom of the needle turning groove of the knitting needle opposite to the needle latch is located, so that after the needle hook enters the needle turning groove, the needle latch is jacked open by the lower edge of the groove bottom of the needle turning groove of the knitting needle opposite to the needle latch. According to the scheme, the guide groove and the needle turning groove are formed, so that the function of the spring piece is replaced, the thickness of the knitting needles is reduced by eliminating the application of the spring piece, and the arrangement density of the knitting needles in the needle plate assembly is improved.

Description

Technical Field

[0001] The utility model relates to the field of computerized flat knitting machines, in particular to a knitting needle and a needle plate assembly thereof. Background Art

[0002] With the improvement of living standards, people's pursuit of beautiful things is constantly changing and progressing. Clothing, as an important necessity of life, carries people's yearning for beautiful things. As an important clothing production tool, the advancement of the functions of computer flat knitting machines directly determines the beauty and quality of the knitted fabrics they can process. An important improvement direction for the functionality of existing computer flat knitting machines is to increase the density of knitting needles that can be arranged within the limited needle plate length, so as to improve the knitting efficiency of the computer flat knitting machine and the delicacy of the patterns that can be woven.

[0003] The current mainstream method of increasing the density of needle arrangement in the needle plate assembly is mainly achieved by making thin inserts to free up more space for needle arrangement and increasing the density of needle arrangement on the needle plate.

[0004] However, the problem with this method is that there is a spring sheet on the existing knitting needle for turning the needle, and the spring sheet protrudes from the surface of the knitting body to form a channel between the knitting needle and the knitting needle for the needle hook and the needle rod to pass through when turning the needle. However, the presence of the spring sheet will increase the overall thickness of the knitting needle (at least the thickness of a needle hook plus the thickness of the spring sheet itself). In order to increase the needle density of the knitting needle on the needle plate without changing the knitting needle structure, it is necessary to make some changes to the insert sheet, that is, to open a groove on the insert sheet for avoiding the spring sheet. When the thickness of the protruding part of the spring sheet is missing from the insert sheet, the strength of the insert sheet at the groove will be greatly reduced, causing the insert sheet to be soft at this location. When knitting is carried out, the insert sheet is very likely to bend and deform at this location, affecting the stable operation of the knitting needle in the needle groove.

[0005] Therefore, it is urgent to change the existing ideas and realize the arrangement density of the knitting needles on the needle plate while ensuring the stable operation of the knitting needles. Utility Model Content

[0006] The utility model aims to provide a knitting needle and a needle plate assembly thereof, so as to increase the arrangement density of the knitting needles on the needle plate through a new approach while ensuring the strength of the insert.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A knitting needle comprising

[0009] The needle body has a head and a tail, a side surface of the head is indented inward to form a guide groove with an open bottom, and a groove wall of the guide groove away from the tail is inclined and raised toward the head until it smoothly connects with the surface of the needle body on the side where the guide groove is located;

[0010] A needle bar, the needle bar having a first end and a second end, the first end being connected to the head of the needle body, one side of the needle bar being recessed inward to form a needle turning groove with an open lower portion, the needle turning groove being connected to the guide groove;

[0011] A needle hook connected to the second end of the needle rod;

[0012] A needle tongue is connected to the second end of the needle rod in a flippable manner, and one side of the needle tongue protrudes toward the side where the bottom of the needle turning groove of the opposite knitting needle is located, so that after the needle hook enters the needle turning groove, the needle tongue is pushed open by the lower edge of the bottom of the needle turning groove of the opposite knitting needle.

[0013] Preferably, the groove bottom of the guide groove and the groove bottom of the needle turning groove are located on the same side, and the two are smoothly connected.

[0014] Preferably, the upper groove wall of the needle turning groove is gradually lifted upward, so that the groove body height from the needle turning groove to the guide groove is gradually increased.

[0015] Preferably, a reinforcing plate is also provided on the needle rod, the reinforcing plate is parallel to the bottom of the needle turning groove, the thickness of the needle hook is smaller than the gap between the reinforcing plate and the bottom of the needle turning groove, and the thickness of the needle tongue is larger than the gap between the reinforcing plate and the bottom of the needle turning groove.

[0016] Preferably, the bottom of the guide groove gradually rises from bottom to top until the upper edge smoothly connects with the outer surface of the needle body.

[0017] A needle plate assembly comprises a needle plate, on which a plurality of inserting plates are inserted, and the adjacent inserting plates are clamped in parallel to form a needle groove, and the knitting needle recorded above can be slidably inserted into the needle groove along the length direction of the needle groove.

[0018] Preferably, at least one side of the insert is provided with a limiting groove extending along the length direction of the needle groove, and the needle groove formed by two adjacent inserts has at least one limiting groove. When the knitting needle is placed in the needle groove, the side piece slides and fits into the limiting groove.

[0019] Preferably, both sides of the insert are provided with a limiting groove extending along the length direction of the needle groove.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] In this solution, the method for increasing the density of knitting needles on the needle plate is to eliminate the spring sheet. That is, while ensuring the complete function of the knitting needles, the assembly space on the needle plate occupied by the spring sheet in the original knitting needles is eliminated, thereby reducing the overall thickness of the knitting needles and increasing the arrangement thickness of the knitting needles on the needle plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a knitting needle in the utility model;

[0023] Figure 2 yes Figure 1 Bottom view of

[0024] Figure 3 yes Figure 1 The main view of

[0025] Figure 4 yes Figure 3 Sectional view along AA direction;

[0026] Figure 5 It is the front view of the existing knitting needle;

[0027] Figure 6 yes Figure 5 Bottom view of

[0028] Figure 7 is a schematic diagram of the structure of the needle plate assembly;

[0029] Figure 8 It is a schematic diagram of the structure of the insert in the needle plate assembly;

[0030] Fig. 9 yes Figure 8 Bottom view of

[0031] Figures 10 to 14 This is the state change diagram of the two knitting needles in this scheme when they are performing the needle transfer operation.

[0032] Figure numerals: 1. needle plate 2. insert 21. limit groove 3. knitting needle 31. needle body 311. guide groove 312. head 313. tail 32. needle bar 321. needle turning groove 322. first end 323. second end 324. reinforcement plate 33. needle hook 34. needle tongue 4. long needle 5. spring needle 6. selection needle 7. spring sheet 8. coil. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the development of computer flat knitting machines, we know that when the length of the needle plate in the computer flat knitting machine that can be used to arrange and install the knitting needles is certain, it is foreseeable that the knitting efficiency and knitting capacity of the computer flat knitting machine can be improved by increasing the density of the knitting needles that can be arranged on the needle plate of the computer flat knitting machine. That is: 1. Reduce the thickness of the knitting needles to reduce the space occupied by the knitting needles and increase the density of the knitting needles; 2. Reduce the thickness of the insert that forms the needle groove to save more space for the arrangement of the knitting needles.

[0037] However, after years of development, the thickness of the needles and inserts in the above two methods have been developed to the extreme and the mechanisms are basically mature. It is very difficult to reduce the thickness. Therefore, the contradiction in the purpose of improving the arrangement of needles on the needle plate is that the space that can be saved without changing the structures of the two is very limited.

[0038] Therefore, it is obviously feasible to try to change the structure of the knitting needle or the insert to reduce the thickness of the knitting needle. Specifically, it is found through observation that the spring sheet 4 (such as Figure 5 , Figure 6) As an important component of the knitting needle, it occupies a large proportion of the thickness of the knitting needle (not less than 1 / 3 of the overall thickness of the knitting). Specifically, the thickness of the channel formed by the spring sheet and the needle body and the thickness of the spring sheet itself. Among them, the channel formed by the spring sheet and the needle body is at least as thick as the needle hook can pass through. This thickness protrudes from the needle body, which is not conducive to hiding. It is also necessary to open an avoidance groove on the insert to avoid irreversible deformation caused by excessive pressure on the spring. The existence of the spring sheet not only restricts the reduction of the thickness of the knitting needle, but also further causes the thickness of the insert to increase. Specifically, the opening of the avoidance groove will lead to a decrease in the strength of the insert. In order to ensure that the strength of the insert is sufficient, it is necessary to consider the thickness of the avoidance groove and appropriately thicken the insert. Through the above observations, it can be found that if the protruding structure brought by the spring sheet is removed while ensuring that the turning function of the spring sheet during the turning process can be smoothly realized, it can not only reduce the thickness of the spring sheet protruding in the knitting needle, but also reduce the overall thickness of the insert because there is no need to open an avoidance groove on the insert.

[0039] To this end, the present application provides a knitting needle that can smoothly complete the needle turning action of the knitting needle without removing the spring sheet structure of the existing knitting needle.

[0040] Specifically, Figures 1 to 4 As shown, the knitting needle 3 in this scheme includes a needle body 31, a needle rod 32, a needle hook 33 and a needle tongue 34. Among them, the needle body 31 has a head 312 and a tail 313 extending horizontally to both ends. On a side surface close to the head, there is a part that is laterally concave toward the needle body, and the laterally concave part forms a guide groove 311. The lower part of the guide groove extends to the lower edge of the needle body and has an opening that opens downward, so that when turning the needle, the needle hook and the needle rod part relative to the knitting needle can enter the guide groove from the lower opening of the guide groove. In addition, it should be noted that the groove wall of the guide groove 311 away from the side of the tail 313 is tilted and lifted toward the direction where the head is located, and the upper edge of the inclined groove wall extends to smoothly connect with the surface of the needle body 31 on the side where the guide groove is located, so that the needle hook and the needle rod part can exit the guide groove along the inclined groove wall to the outer surface of the needle body when the needle is withdrawn.

[0041] At the same time, in Figure 1 As shown, the needle bar 32 has a first end 322 and a second end 323. The first end is connected to the end surface of the needle body 31 at the head 312, and the needle body and the lower edge of the needle bar are smoothly connected and extended. It should also be noted that the width of the needle bar is smaller than the needle body, so that the connection between the first end 322 of the needle bar and the head 312 can form a step to prevent the coil from retreating onto the needle body. In addition, as Figure 2 , Figure 3As shown, a needle turning groove 321 is formed by an inwardly recessed groove on one side of the needle bar, and the lower part of the needle turning groove extends to the lower edge of the needle bar to form a structure with an open lower part. Figure 3 As shown, in this embodiment, the needle transfer groove 321 and the guide groove 311 are connected to each other, so that the needle hook extending from the needle transfer groove can enter the guide groove smoothly during the subsequent continuous movement of the knitting needle.

[0042] like Figure 1 As shown, the needle hook part in this solution is connected to the second end 323 of the needle rod 32. At the same time, the needle tongue 34 is connected to the second end through a pin shaft so that it can be turned over. It should be noted that the needle tongue part can cover the needle hook entrance after turning forward to complete the partial turning action during the knitting process. In addition, it should be noted that Figures 9 to 14 As shown, in this scheme, in order to ensure that when the needle hook of the right knitting needle II enters the needle turning groove of the opposite knitting needle I, the needle tongue can be pushed open by itself, completing the effect of the spring sheet on the needle tongue. In this scheme, one side of the needle tongue protrudes outward, specifically, the protruding side of the needle tongue in the knitting needle II is the side where the groove bottom of the needle turning groove 321 of the opposite knitting needle I is located, that is, the protruding side of the needle tongue is on the same side as the groove bottom of the needle turning groove on the other opposite knitting needle, so as to ensure that when the needle hook of the knitting needle II enters the guide groove of the knitting needle I, the needle tongue of the knitting needle II can be stably pushed open by the lower edge of the groove bottom of the needle turning groove 321 on the opposite knitting needle I.

[0043] It should also be noted that in the above-mentioned embodiment, there are no specific detailed requirements for the side where the needle turning groove 321 is located, that is, the needle turning groove can be opened on any one of the two side surfaces of the needle bar. Considering that processing on the same side can reduce the turning over of the knitting needle during processing, as well as the number of repeated loading and unloading times, the processing accuracy can be improved and the processing difficulty can be reduced. In this scheme, preferably, the bottom of the turning needle groove 321 and the bottom of the guide groove 311 are located on the same side, that is, the guide groove and the turning needle groove are opened on the side of the same side. In addition, it should be noted that in the present application scheme, the turning needle groove and the guide groove are opened on the same side, so that the bottom of the guide groove and the bottom of the turning needle groove can be smoothly connected, so that the process of the needle hook from the turning needle groove to the guide groove is smoother.

[0044] It should also be noted that in this solution, the upper portion of the needle turning groove 321 also gradually rises and moves away from the lower edge. Specifically, the upper groove wall of the needle turning groove gradually rises from the side close to the second end to the side away from the second end, so that the groove body height from the needle turning groove 321 to the guide groove 311 gradually increases.

[0045] It should be noted that if Figures 9-10As shown, after the needle hook on needle II enters the needle turning groove on needle I, needle I continues to rise under the control of the triangle. At the same time, needle II also has a forward extension under the control of the triangle. It should be noted that the purpose of the forward extension is that if only needle I is extended forward, the needle turning groove of needle I has limited effect on the backward turning of the needle tongue on needle II. The main reason is that when the needle tongue turns a certain angle, it will be disengaged from the bottom of the corresponding needle turning groove. If needle I rises while driving needle II to rise synchronously, then as the needle tongue on needle II turns backward, needle I can exert a continuous force on the needle tongue to ensure that the needle tongue can be turned over to a sufficient angle before the needle hook enters the guide groove, so as to avoid the situation where the needle tongue on needle I is stuck because the angle between it and the needle body of needle I is too small.

[0046] In order to ensure that knitting needle II can also rise to a certain extent when knitting needle I rises, the upper edge of the needle turning groove needs to be gradually lifted upward. Specifically, from the needle hook entry side (close to the second end) to the needle hook removal side (close to the first end), the upper groove wall of the needle turning groove is gradually lifted, and the groove body height from the needle turning groove 321 to the guide groove 311 is gradually increased. The gradually increased height provides space for knitting needle II to extend in the needle turning groove, so that knitting needles I and knitting needles II can move synchronously when the needle hook enters the needle turning groove.

[0047] In addition, it should be noted that in some embodiments, a reinforcing plate 324 may be added, which is arranged parallel to the bottom of the needle turning groove 321. A gap is formed between the reinforcing plate and the bottom of the needle turning groove to guide the needle hook into the needle turning groove. It should be noted that the reinforcing plate 324 is smoothly connected to the needle body to enhance the strength of the needle rod 32 after the needle turning groove is opened. In the above embodiment, the gap between the reinforcing plate and the bottom of the needle turning groove is greater than the thickness of the needle hook to ensure that the needle hook can be smoothly inserted into the needle turning groove. Moreover, it should be noted that in this method, the thickness of the needle tongue needs to be greater than the thickness of the gap formed by the bottom of the needle turning groove and the reinforcing plate, so that when the needle hook is inserted into the needle turning groove, the needle tongue can be pushed open by the bottom of the needle turning groove or the reinforcing plate.

[0048] In addition, if Figure 4As shown, in some embodiments, there are also the following preferred solutions. Specifically, the bottom of the guide groove 311 is gradually raised along the bottom of the needle body from top to bottom. Specifically, the bottom of the guide groove is an inclined surface, and the upper edge of the bottom of the groove is gradually raised until the upper edge extends to smoothly connect with the outer surface of the needle body. It should be noted that the role of gradually raising the bottom of the guide groove is that when the knitting needle II is raised in the guide groove of the knitting needle I, its needle hook part can first slide out of the guide groove to the outer surface of the needle body under the action of the guide groove of the raised guide groove. Then, when the knitting needle I withdraws the needle, the needle rod and the needle hook will not hook the reinforcing plate or the bottom of the needle turning groove, ensuring that the knitting needle withdraws smoothly from the guide groove. In view of the above situation, it should also be noted that the mechanism for gradually raising the bottom of the guide groove can exist independently, that is, the side wall of the guide groove is not gradually raised and the needle hook can also be ensured to withdraw from the guide groove. It can also exist together with a guide groove structure having an inclined side wall to further ensure the stability of the needle hook withdrawing from the guide groove.

[0049] In addition, the present application also discloses a needle plate assembly. Figures 7 to 9 As shown, it includes a needle plate 1, on which several inserts 2 are evenly inserted, and these adjacent inserts are clamped in parallel with each other to form a series of needle grooves for knitting needles to slide and cooperate. And the corresponding knitting needles 3 as described in the above technical solution are arranged in the needle groove. It should be noted that the knitting needles can slide in and out of the needle grooves to achieve various actions required to be completed during the knitting process. The related actions of the knitting needles need to be achieved through the drive conduction of the control triangle by the long needles 4, spring needles 5 and selection needles 6 connected to the knitting needles. It should also be noted that in this embodiment, in order to ensure that a group of two relative knitting needles, when they are extended, the needle hook can enter the needle turning groove of the corresponding knitting needle, the needle turning groove is located in the middle position of the needle rod, and the needle hook is also arranged in the center. So that the inserted needle hook can smoothly enter the needle turning groove to avoid the occurrence of needle collision.

[0050] In addition, it should be noted that when the knitting needle 3 is driven to slide in the needle groove, the knitting needle may rise and fall in the needle groove. In order to avoid this situation, Figure 8As shown, a limiting groove 21 is provided on at least one side of the insert 2, so that there is at least one limiting groove 21 in the needle groove formed by the clamping of the two inserts. It should be emphasized that the width of the limiting groove is adapted to the height of the needle body of the knitting needle, so that when the knitting needle is placed in the needle groove, at least one side of the knitting needle can be slidably fitted into the limiting groove to avoid the knitting needle from sliding up and down in the needle groove. In this embodiment, the explanation of the limiting groove is that the difference between the avoidance groove provided on the insert and the avoidance spring sheet is that it only needs to ensure that the needle body of the knitting needle is restricted, so its depth is much shallower than the avoidance groove of the avoidance spring sheet 7, and it will not cause excessive damage to the strength of the insert, and the thickness of the insert does not need to be increased additionally.

[0051] It should also be noted that, based on the above embodiment, a limiting groove 21 extending along the length direction of the needle groove can be provided on both sides of the insert. When the knitting needle enters the needle groove, both sides of it are sunk into the limiting groove, further improving the stability of the knitting needle in the needle groove.

[0052] Working principle: Combined with the instructions Figures 1 to 14 As shown, the needle plate assembly in this scheme includes a needle plate, an insert, and a knitting needle without a spring plate after structural improvement. The specific installation method is that after the insert is evenly inserted into the slot opened on the needle plate, two adjacent inserts are clamped in pairs to form a needle slot. Then the knitting needle is inserted into the needle slot through the front end. It needs to be ensured that the needle body of the knitting needle is located in the limiting groove opened on the insert to prevent the knitting needle from floating up and down when sliding in the needle slot. When the knitting needle is installed in place, the long needle, spring needle, and selection needle are sequentially connected and installed into the needle slot and connected to the knitting needle. At this point, the needle plate assembly is assembled.

[0053] When performing the needle turning action, refer to Figures 10 to 14 As shown (hereinafter, the left knitting needle in the figure is knitting needle I, and the right knitting needle is knitting needle II), the corresponding needle transfer steps are explained in detail.

[0054] Specific as Fig.10 As shown, when the needle is turned, the coil is at the step where the needle body of the left knitting needle I and the needle bar are connected, and the hook of the right knitting needle II moves to the needle turning groove of the knitting needle I close to the needle bar.

[0055] Then as Fig.11 As shown, knitting needle II is stretched, and the hook of knitting needle II slowly enters into the needle turning groove of knitting needle I. At this time, with the entry of the hook, the needle tongue part on knitting needle II abuts against the lower edge of the bottom of the needle turning groove in knitting needle I. With the continuous forward movement of knitting needle I and the synchronous extension of knitting needle II, the needle body is driven by the bottom of the needle turning groove in knitting needle I and slowly opens.

[0056] Then, if Fig.12 As shown, the hook of needle II moves to the guide groove of needle I, and the needle tongue on needle II is also fully opened, and the hook of needle II is also located in the middle of the coil. It should be noted that in this step, as needle II continues to move in the guide groove, the hook of needle II rises to the outer surface of needle I to ensure that needle II can slide out of needle I smoothly when needle I withdraws.

[0057] like Fig.13 As shown, while the knitting needle II slides out of the guide groove of the knitting needle I, the needle hook portion of the knitting needle II penetrates into the coil. At this time, the knitting needle I retreats, and the needle bar of the knitting needle I is in a state of passing through the coil.

[0058] like Fig.14 As shown, the knitting needle I on the right retreats and completely withdraws from the needle bar of the knitting needle II until the needle hook of the knitting needle I also withdraws from the coil position, at which time the needle turning action is completed.

[0059] It should be noted that, in the above process, the needle turning groove provided in the needle bar and the guide groove provided in the needle body effectively replace the traditional spring sheet, guide the opening action of the needle tongue on the knitting needle, and assist the completion of the needle turning action of the knitting needle. In the above structure, the guide groove and the needle turning groove are both provided inside the knitting needle. Compared with the traditional spring sheet structure, the thickness space occupied by the protruding spring sheet part of the knitting needle is effectively reduced, and the thickness of the knitting needle is greatly reduced. In the case of using the insert of the existing thickness, as the curvature of the knitting needle is reduced, the density of the pointers that can be arranged on the needle plate per unit length is also greatly improved.

[0060] In addition, it should be noted that, because there is no spring sheet, there is no need to open an avoidance groove on the insert, and its thickness does not need to be increased. Some thickness space can be saved on the insert to further increase the arrangement density of the knitting needles on the needle plate.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A knitting needle (3), characterized in that: include A needle body (31), the needle body (31) comprising a head (312) and a tail (313), a side surface of the head (312) being recessed inward to form a guide groove (311) with an open bottom, and a groove wall of the guide groove (311) on a side away from the tail (313) being inclined and raised toward the head (312) until smoothly connected with a surface of the needle body (31) on the side where the guide groove (311) is located; A needle rod (32), the needle rod (32) having a first end (322) and a second end (323), the first end (322) being connected to the head (312) of the needle body (31), one side of the needle rod (32) being recessed inward to form a needle turning groove (321) with an open lower portion, the needle turning groove (321) being connected to the guide groove (311); A needle hook (33), wherein the needle hook (33) is connected to the second end (323) of the needle rod (32); A needle tongue (34), wherein the needle tongue (34) is connected to the second end (323) of the needle rod (32) in a flippable manner, and one side of the needle tongue (34) protrudes toward the side where the bottom of the needle turning groove (321) of the knitting needle (3) is located, so that after the needle hook (33) enters the needle turning groove (321), the needle tongue (34) is pushed open by the lower edge of the bottom of the needle turning groove (321) of the knitting needle.

2. A knitting needle (3) according to claim 1, characterized in that: The groove bottom of the guide groove (311) and the groove bottom of the needle turning groove (321) are located on the same side, and the two are smoothly connected.

3. A knitting needle (3) according to claim 1, characterized in that: The upper groove wall of the needle turning groove (321) is gradually lifted upward, so that the groove body height from the needle turning groove (321) to the guide groove (311) is gradually increased.

4. A knitting needle (3) according to claim 1, characterized in that: The needle rod (32) is also provided with a reinforcing plate (324), the reinforcing plate (324) is parallel to the bottom of the needle turning groove (321), the thickness of the needle hook (33) is smaller than the gap between the reinforcing plate (324) and the bottom of the needle turning groove (321), and the thickness of the needle tongue (34) is larger than the gap between the reinforcing plate (324) and the bottom of the needle turning groove (321).

5. A knitting needle (3) according to claim 1, characterized in that: The bottom of the guide groove (311) gradually rises from bottom to top until the upper edge smoothly connects with the outer surface of the needle body (31).

6. A needle plate assembly, comprising a needle plate (1), wherein a plurality of insert plates (2) are inserted into the needle plate (1), wherein adjacent insert plates (2) are clamped in parallel to form a needle groove, and a knitting needle (3) as described in any one of claims 1 to 5 can be slidably inserted into the needle groove along the length direction of the needle groove.

7. A needle plate assembly according to claim 6, characterized in that: At least one side of the insert (2) is provided with a limiting groove (21) extending along the length direction of the needle groove; the needle groove formed by sandwiching two adjacent inserts (2) has at least one limiting groove (21); when the knitting needle (3) is placed in the needle groove, the side piece slides and fits into the limiting groove (21).

8. A needle plate assembly according to claim 7, characterized in that: Both sides of the inserting piece (2) are provided with a limiting groove (21) extending along the length direction of the needle groove.

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