A needle and bed structure

Abstract

The utility model discloses a kind of knitting needle and the needle plate structure adapted therewith. Among them, knitting needle includes knitting needle body, with guiding side and function side;Spring piece, the spring piece includes connecting portion and function part, the connecting portion is connected in the function side of knitting needle body, the function part is connected with the connecting portion, the function part has arch away from function side, the function part is contacted with the function side of the knitting needle body to form the cavity that needle hook can enter, the connecting portion has the pad increase portion staggered the knitting needle body, pad increase portion is interfered to drive function part to be warped away from the function side of knitting needle body when turning needle. By the above structure, and the cooperation of working mode, to improve the stability of turning needle. Furthermore, the needle plate structure of the present scheme is improved to further improve the stability of the flat knitting machine.

Description

Technical Field

[0001] This utility model relates to the field of computerized flat knitting machines, and in particular to a knitting needle and needle plate structure. Background Technology

[0002] Flat knitting machines are the core equipment for producing knitted goods, and their needle-turning action is a key process for realizing changes in fabric patterns and structures. The stability and reliability of the needle-turning action directly determine the quality of the fabric and production efficiency. Currently, the needle-turning mechanism of a flat knitting machine mainly consists of components such as a needle plate, inserts, needles, long needles, sinkers, and toothed plates.

[0003] In existing technology, to ensure smooth movement of the knitting needle within the needle groove, the needle body thickness and the needle groove width are typically designed to be closely matched, resulting in minimal needle wobble when the needle is in a low position. However, during the turn-over process, when the needle is pushed to a high position by a longer needle, most of its body disengages from the narrow needle groove restraint area formed by the thicker insert and enters the area formed by the sinker plate and the toothed plate. Because the sinker plate and the toothed plate are thinner than the insert, the gap between them is larger, failing to provide effective lateral support for the needle body in the high position. This causes the needle to wobble, severely affecting the stability and accuracy of the turn-over action and easily leading to missed stitches.

[0004] Furthermore, to facilitate needle flipping, knitting needles are typically designed with a hollow spring plate structure for the hook of another needle to pass through. However, in actual operation, due to manufacturing and assembly errors, long-term wear, or fatigue deformation of the spring plate under pressure, misalignment can easily occur, causing the needle hook to fail to accurately enter the cavity, resulting in failed needle flipping, or even the needle hook colliding with the spring plate. Existing needle plate structures lack an active correction or auxiliary guidance mechanism to address this problem, resulting in a low fault tolerance rate.

[0005] On the other hand, the gaps above the insert head and the top of the toothed plate may undergo slight deformation under long-term stress, thereby changing the actual width of the needle groove and affecting the linearity of the needle movement. The gap between the sinker and the needle groove can also easily cause it to wobble during operation, affecting its matching accuracy with the needle.

[0006] Therefore, there is an urgent need in this field for a new type of stable needle plate structure to solve the problem of needle swaying when the needle is in a high position, improve the fault tolerance and success rate of needle turning action, and ensure the long-term stability of the spacing between key components. Utility Model Content

[0007] The purpose of this utility model is to provide a knitting needle and needle plate structure to solve the above-mentioned technical problems.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A knitting needle, including

[0010] The knitting needle body has a guiding side and a functional side;

[0011] A spring sheet includes a connecting portion and a functional portion. The connecting portion is connected to the functional side of the knitting needle body. The functional portion is connected to the connecting portion and has an arch facing away from the functional side. The functional portion contacts the functional side of the knitting needle body to form a cavity into which the needle hook can enter. The connecting portion has a padding portion that is offset from the knitting needle body. When turning the needle, the padding portion is interfered with to cause the functional portion to tilt away from the functional side of the knitting needle body.

[0012] Preferably, the advancing and retreating sides of the padding portion have guide protrusions facing away from the knitting needle body.

[0013] Preferably, the padding portion protrudes from the guide side of the needle body on the side facing the needle body.

[0014] Preferably, the connecting portion has an arch facing away from the functional side.

[0015] Preferably, the lower edge of the functional portion of the needle body and the spring sheet opposite each other is arched to form an arched portion, so that the lower edge of the spring sheet is flush with the lower edge of the opposite needle body without changing the width.

[0016] A needle plate structure, including

[0017] The needle plate has equally spaced slots;

[0018] Inserts are inserted into slots to form pin grooves;

[0019] The knitting needles are slidably placed in the needle groove;

[0020] The toothed plate is located at the outlet end of the needle groove;

[0021] Settling plates are spaced apart between the toothed plates and together with the toothed plates form a channel to guide the movement of the extended knitting needles;

[0022] The toothed plate and the sinker plate are provided with a constraint part one on the side facing the functional side of the knitting needle. When the knitting needle extends out of the needle groove, the upper edge of the functional side of the knitting needle body slides over the constraint part one.

[0023] Preferably, the surface of the toothed plate facing the functional side is provided with a second constraint part, and when the needle extends out of the needle groove, the lower edge of the functional side of the needle body slides over the second constraint part.

[0024] Preferably, the toothed plate and the sinker plate are provided with a constraint part three on the side facing the functional side of the knitting needle. When the knitting needle extends out of the needle groove to the needle flipping position, the constraint part three interferes with the padding part of the knitting needle to raise the padding part and move it away from the functional side of the knitting needle body.

[0025] Preferably, it further includes a spacer, the spacer having a slot, the upper edge of the insert being inserted into the slot, and the spacing between adjacent slots being a preset width of the pin groove.

[0026] Preferably, the spacer is further provided with an extension section, which extends forward and is inserted between the two toothed plates, and the distance between two adjacent extension sections is a preset distance between the two toothed plates.

[0027] Preferably, it also includes a pressure strip, wherein the insert has an installation groove, the pressure strip is inserted into the installation groove, and the bottom surface of the pressure strip smoothly presses against the upper edge of the knitting needle body.

[0028] Preferably, the pressure strip is wavy and has elastic sides that are stretched open in the mounting groove.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] 1. With the needle structure in this solution, when performing the needle flipping action, the padding part of the spring sheet can receive a lateral padding force when the needle is in the needle flipping position. This lateral force causes the padding part to be raised laterally, thereby moving the connected functional part away from the functional side of the needle body. That is, at this time, the cavity formed by the functional part of the spring sheet and the needle body will be expanded. Therefore, when flipping the needle, the probability that the needle hook of the needle responsible for receiving the needle on the needle plate can accurately enter the cavity will be effectively improved.

[0031] 2. The padding section in this design has guide protrusions on the advancing and retreating sides to improve the smoothness of the padding section when interference occurs and avoid the occurrence of pin collision.

[0032] 3. The padding portion protrudes from the guide side of the needle body towards the needle body. Its significance lies in ensuring smooth needle exit. The needle groove width is typically 20-30 μm wider than the needle thickness, meaning the needle may still wobble within the groove. In this configuration, if the needle is suddenly subjected to external padding during needle flipping, it may bounce to one side, affecting the stability of needle exit. However, if the padding portion protrudes from the guide side of the needle body, it acts like a spring supported on the insert, pre-pushing the needle with excess material to one side, eliminating the space for bouncing. In this state, even if the padding portion of the needle is interfered with, causing the functional parts to expand, the entire needle will already be biased to one side, preventing adjustment and effectively improving the stability of the needle during needle flipping.

[0033] 4. The connection part is arched, which is intended to improve the elastic recovery ability of the connection part, so as to ensure that the spring sheet as a whole can maintain a stable structural shape after being subjected to high-frequency padding.

[0034] 5. This solution also provides a needle plate structure adapted to the knitting needle structure. By setting a constraint part 1 on the toothed plate and the sinker plate, the part of the knitting needle extending out of the needle groove can be laterally constrained by the constraint part 1 when passing through the channel formed by the toothed plate and the sinker plate during needle turning. This avoids the shaking caused by the air bulge generated by the existing toothed plate and sinker plate facing the knitting needle functional side to avoid the spring plate, and effectively improves the stability of the part of the knitting needle extending out of the needle groove during needle turning.

[0035] 6. This solution also includes a constraint part three on the toothed plate and the sinker plate. During the needle turning process, after the needle extends into place, the constraint part three can perform a lateral interference on the padding part on the needle, that is, to raise and withdraw the padding part in the direction away from the functional side of the needle, thereby expanding the cavity and increasing the probability of the needle hook of the needle on the receiving side entering the cavity, ultimately achieving the purpose of improving the stability of successful needle turning.

[0036] 7. This solution, without changing the overall width of the arched portion on the needle body, raises and arches the portion opposite the functional part of the spring plate to form the arched portion. This arched portion maintains alignment of its lower edge with the lower edge of the spring plate while keeping its thickness and width unchanged. It is important to note that the needle strength remains unaffected by the unchanged width and thickness of the needle body; that is, the stability during needle turning will not suffer a negative gain due to the arched lower edge. Furthermore, through the aforementioned structural improvements, this solution aligns the lower edge of the spring plate with the lower edge of the arched portion on the needle body. Therefore, while maintaining the same dimensions as existing designs, the chamfer on the arched portion of the needle can be increased in gap with the spring plate (the entrance size of the cavity), thereby improving the stability of the needle entering the cavity on the turning side.

[0037] 8. Spacers are installed to maintain the stability of the inserts during high-speed operation of the computerized flat knitting machine. Especially in this design, where the inserts are subjected to lateral deformation pressure from the spring sheet, the spacers effectively prevent lateral deformation of the inserts.

[0038] 9. The extension at the front end of the spacer can constrain the toothed plate to avoid deformation of the toothed plate caused by the reaction force generated by the toothed plate acting on the knitting needle.

[0039] 10. Set pressure strips to effectively control the sliding state of the knitting needles in the needle groove, and avoid fluctuations in the knitting needles during the needle entry and exit process. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0041] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0042] Figure 3 This is a partial enlarged view of the present invention;

[0043] Figure 4 This is a view along direction A after removing the settling sheet;

[0044] Figure 5 yes Figure 4 Diagram showing the state of the stitch during the turn-over process;

[0045] Figure 6 This is a schematic diagram of phase B after the toothed plates have been removed;

[0046] Figure 7 yes Figure 6 Diagram showing the state of the stitch during the turn-over process;

[0047] Figure 8 This is a schematic diagram of the state when the needle is turned over in this utility model;

[0048] Figure 9 This is a schematic diagram showing the state of the knitting needle on the turning side entering the cavity during the turning of the needle in this utility model;

[0049] Figure 10 This is a schematic diagram of the structure of a knitting needle;

[0050] Figure 11 It is the section where the arched part of the knitting needle and the functional part of the spring sheet form a cavity.

[0051] Figure 12 yes Figure 10 The main view;

[0052] Figure 13 yes Figure 10 Top view;

[0053] Figure 14 This is a magnified view of a section marked I;

[0054] Figure 15 This is a schematic diagram of the spring sheet structure;

[0055] Figure 16 This is a vertical view of the toothed plate;

[0056] Figure 17 This is the A-direction view of the toothed plate;

[0057] Figure 18 This is the B-direction view of the toothed plate;

[0058] Figure 19 This is a vertical view of the toothed plate;

[0059] Figure 20 This is a view of the settling section from direction A;

[0060] Figure 21 This is a view of the settling section from direction B;

[0061] Figure 22 This is a schematic diagram of the structure of an existing knitting needle;

[0062] Figure 23 yes Figure 22 A magnified view of a section marked II;

[0063] Figure 24 This is a schematic diagram showing the state of the knitting needle on the flipping side entering the cavity during the knitting needle flipping process under the existing design.

[0064] Reference numerals: 1. Needle plate structure; 11. Needle plate; 111. First slot; 12. Insert; 121. Mounting slot; 13. Knitting needle; 131. Knitting needle body; 1311. Guide side; 1312. Functional side; 1313. Arched portion; 1314. Groove; 132. Spring plate; 1321. Connecting part; 13211. Padding portion; 13212. Guide protrusion; 1322. Functional part; 133. Cavity; 14. Toothed plate; 143. First constraint part three; 15. Sinking plate; 16. Spacer plate; 161. Second slot; 162. Extension section; 17. Pressure strip; 18. Constraint part one; 19. Constraint part two; 20. Second constraint part three. Detailed Implementation

[0065] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0066] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0067] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0068] It should be noted that in the existing computerized flat knitting machine, during the needle turning process, as the knitting needle 13 wears down and the spring plate 132 is fatigued and deformed, the knitting needle 13 often experiences needle slippage (the needle hook of the receiving needle 13 cannot enter the loop) and needle collision (the needle hook of the receiving needle 13 hits the spring plate 132 of the turning needle 13). This brings uncontrollable factors to the stable operation of the computerized flat knitting machine, especially the stable operation of the needle turning step.

[0069] Therefore, this application aims to improve the stability of the knitting needle 13 during the needle turning process by modifying the needle structure of the computerized flat knitting machine.

[0070] like Figures 1-22 As shown, the knitting needle 13 includes a needle body 131 and a spring plate 132. The needle body 131 is a sheet-like structure, and its two sides are defined as a guide side 1311 and a functional side 1312, respectively, according to their different functions during the knitting process. The side where the spring plate 132 is located is the functional side 1312 of the needle body 131, while the opposite side is the guide side 1311.

[0071] It should be noted that the spring sheet 132 in this design can be divided into a connecting part 1321 and a functional part 1322 connected sequentially. The basic function of the connecting part 1321 is to achieve the embedded connection between the spring sheet 132 and the knitting needle body 131. The main function of the functional part 1322 is to facilitate the loop migration when the knitting needle 13 turns over. For example... Figure 12 As shown, in this design, the functional part 1322 has an arched functional side 1312 facing away from the needle body 131, and the functional part 1322 cooperates with the functional side 1312 of the needle body 131 to form a cavity 133 into which the needle hook can enter. It should be understood that during the stitch turning process, after the needle hook on the receiving side enters through this cavity 133, the needle tongue opens, thereby hooking the loop. Therefore, during stitch turning, whether the needle hook on the receiving side can stably and smoothly enter the cavity 133 formed by the functional part 1322 and the needle body 131 directly affects the success rate and stability of the stitch turning. However, the existing operation of the needle hook entering the cavity 133 depends entirely on the arched state of the functional part 1322 itself. If the arched state is good, the needle hook on the receiving side enters smoothly, and the stitch turning is stable. If the arching state is not properly positioned due to issues with the condition of the spring plate 132 (impact, wear, fatigue, etc.), the needle hook may pass through the outside of the spring plate 132 or even directly impact it. This significantly affects the success rate and stability of the stitch turning action on the computerized flat knitting machine. Therefore, intervention to improve this situation can effectively enhance the stability and success rate of stitch turning.

[0072] like Figures 10-15As shown, this design includes a padding portion 13211 on the connecting part 1321 that is offset from the needle body 131, meaning it is exposed above the needle body 131 when viewed from the side. When the needle 13 extends to the turning position, this padding portion 13211 is interfered with by the internal structure of the flat knitting machine, causing it to move away from the functional side 1312 of the needle body 131. This, in turn, causes the functional part 1322 of the spring plate 132 to expand outward, providing more space for the needle hook to be inserted into the cavity 133. It should be noted that in the above design, the optimal distance for the padding portion 13211 to expand outward (away from the functional side 1312 of the needle body 131) due to interference is 100~200μm.

[0073] It should be noted that the needle turning action of the knitting needle 13, in the needle groove, is along the length of the knitting needle 13. However, in the computerized flat knitting machine, the portion that expands the cavity 133 by raising the padding portion 13211 through interference will obviously protrude beyond the side of the insert 12 forming the needle groove. At this time, if the padding portion 13211 directly impacts this structure, it is very likely that the padding portion 13211 will suffer a large impact, which will cause the overall deformation of the spring sheet 132. To avoid this situation, this solution provides a guide protrusion 13212 facing away from the knitting needle body 131 on the advancing and retreating sides of the padding portion 13211. When the knitting needle 13 extends out of the needle groove and the padding portion 13211 reaches the interference position, the inclined surface formed by the guide protrusion 13212 can achieve a smooth transition of the padding portion 13211 on the interference structure, avoiding a severe impact with a jerky feel, and providing good protection for the padding portion 13211.

[0074] It should also be noted that, in order to better realize the interaction between the padding portion 13211 and the interference portion in the computerized flat knitting machine, and to minimize unnecessary interference between the interference portion in the computerized flat knitting machine and other positions of the needle 13 (especially the protruding needle body 131), the padding portion 13211 in this design is set to protrude from the guide side 1311 of the needle body 131. Specifically, as shown... Figure 14 As shown. In this state, the interference part of the computerized flat knitting machine can be made as thin as possible so that its surface is flush with the surface of the insert 12, so as to avoid interference with other positions of the extended needle 13 or the coils in its structure.

[0075] Furthermore, it should be noted that the connecting part 1321 in this design primarily functions as a connection between the spring sheet 132 and the needle body 131. If a conventional straight sheet structure were used, the connecting part 1321 of the spring sheet 132, after being subjected to a lateral interference force for a prolonged period at a high frequency, would inevitably experience metal fatigue at the bending line, leading to irreversible fatigue deformation and affecting its normal return to its original position. Therefore, the connecting part 1321 in this design is also designed as an elongated arch facing away from the functional side 1312 of the needle body 131. This structure gives the connecting part 1321 a spring-like structural form. When the padding portion 13211 of the spring sheet 132 is subjected to lateral force, the force can be dispersed through the arched shape of the connecting portion 1321, so that the bending deformation of the connecting portion 1321 is diffused from being concentrated on a line to the entire arched connecting portion 1321, thereby minimizing the probability of fatigue deformation of the spring sheet 132 after being subjected to high-frequency interference.

[0076] It should be noted that in existing designs, to improve the success rate of needle turning, a groove 1314 is usually provided on the opposite side of the needle body 131 and the spring plate 132 to increase the success rate and stability of the needle entering the cavity 133 on the turning side. However, it should be pointed out that although the existing solution is a relatively mature technical solution, there is still room for improvement. The specific problem is that in the existing solution, there is still some misalignment between the lower edge of the functional part 1322 of the spring plate 132 and the lower edge of the corresponding needle body 131. This misalignment means that the maximum opening of the groove 1314 on the needle body 131 will not be directly aligned with the spring plate. That is, the entrance of the cavity 133 formed between the functional part 1322 and the needle body 131 does not effectively utilize the maximum opening of the groove 1314.

[0077] To address the aforementioned issues, this plan proposes the following improvements. Specifically, as follows: Figures 8-15 As shown, the part of the knitting needle body 131 that is directly opposite the functional part 1322 of the spring plate 132 is defined as the arched part 1313. While maintaining the same width, thickness and groove 1314 size as the existing design, the arched part arches upward as a whole. This arched structure makes the lower edge of the arched part flush with the lower edge of the functional part in the spring plate 132. At this time, the maximum opening of the groove 1314 is aligned with the lower edge of the functional part 1322. Thus, the entrance size of the cavity formed by the functional part of the spring plate and the arched part is increased.

[0078] It should be noted that while the improvements to the knitting needle 13 enhance the stability of the computerized flat knitting machine during needle turning, further improvements are needed. This solution also includes a needle plate structure 1 adapted to the knitting needle 13.

[0079] like Figures 1-7 As shown, the needle plate structure 1 includes a needle plate 11, on which several slots 111 are equally spaced. Corresponding inserts 12 are inserted into the slots 111. Two inserts 12 clamp together to form a needle groove. It should be noted that in the above scheme, the knitting needle 13 slides in the needle groove to complete the turning needle action under the drive of the long needle. It should be explained that, to cooperate with the knitting needle 13 in the above scheme, the interference part in this scheme is set on the toothed plate 14 and the sinker plate 15 located at the front end of the needle groove. Specifically, according to the structural requirements of the control coil and the movement changes of the knitting needle 13 on the computerized flat knitting machine, the toothed plate 14 and the sinker plate 15 in this scheme are set on the needle exit side of the needle groove, and the toothed plate 14 and the sinker plate 15 are spaced apart to form a channel to guide the movement of the extended knitting needle 13. Wherein, as... Figures 4-5 as well as Figures 13-15 As shown, a constraint part 20 is provided on the side of the toothed piece 14 facing the guide side 1311 of the needle body 131. Meanwhile, as... Figures 6-7 as well as Figures 16-18 As shown, a constraint part 20 is also provided on the side of the sinker plate 15 facing the guide side 1311 of the needle body 131. It should be noted that the constraint part 20 is arranged to avoid the needle hook extension path of the needle 13, that is, the needle body 131 does not interfere with or contact the constraint part 20 when the needle 13 is exiting. At the same time, the constraint part 20 in this solution also needs to satisfy that when the needle 13 extends to the needle flipping position, the constraint part 20 can interfere with the padding part 13211 on the corresponding needle 13. That is, the constraint part 20 can be placed on the side of the padding part 13211, thereby driving the padding part 13211 to move in the direction away from the functional side 1312 of the needle body 131, that is, to expand the cavity 133.

[0080] Furthermore, it is important to know that in this design, the stability of the needle 13 extending out of the needle groove during the needle turning process also affects the stability of the needle turning stability. It is also important to understand that due to the arched structure of the spring plate 132, its lateral height is typically higher than that of the needle body 131, meaning the overall thickness of the needle 13 is greater than the width of the needle groove. To reduce wear on the spring plate 132, a groove is usually provided at the front end of the insert 12 to avoid the spring plate 132. Simultaneously, to reduce interference between the sinker plate 15 and the toothed plate 14 on the spring plate 132 during needle exit and to reduce friction on the spring plate 132, the thickness of the side of the sinker plate 15 and the toothed plate 14 facing the functional side 1312 of the needle body 131 must be less than the thickness of the insert 12. This allows for sufficient spacing to avoid the arched spring plate 132, reducing resistance and frictional wear during needle turning. However, the aforementioned structural configuration also leads to a situation where, after the needle 13 emerges (especially in long-length turn-over stitches), the functional side 1312 of the needle body 131 loses its constraint, making it prone to wobbling during knitting due to traction or interference, thus affecting the stability of the needle 13. This wobbling can also prevent the needle hook from entering the cavity 133 or cause it to collide with the spring plate 132 during the turn-over process. Therefore, if constraints can be applied to both sides of the extended needle 13, the stability of the needle 13 during the turn-over process can be effectively improved. Specific measures include, for example... Figures 16-22 As shown, a constraint part 18 is provided on the side of the toothed plate 14 facing the functional side 1312 of the needle body 131, and a constraint part 18 is also provided on the side of the sinker plate 15 facing the functional side 1312 of the needle body 131. It should be noted that the constraint part 18 is located on the movement path of the needle 13, and after the needle 13 extends out of the needle groove, it can fit against the upper edge of the surface of the functional side 1312 of the needle body 131, thereby forming a sliding clamping structure with the surfaces of the toothed plate 14 / sinker plate 15 facing the guide side 1311, which can constrain the needle 13 from both sides.

[0081] As a further improvement to the above method, a second constraint part 19 is provided on the surface of the toothed plate 14 facing the functional side 1312. The second constraint part 19 is located below the toothed plate 14. When the knitting needle 13 extends out of the needle groove, the lower edge of the functional side 1312 of the knitting needle body 131 slides over the second constraint part 19.

[0082] Furthermore, regarding the aforementioned adapted needle plate mechanism, it should be noted that existing computerized flat knitting machines, to ensure the smooth operation of the needle 13 in the needle groove, typically use a thickness that is slightly smaller than the needle groove width by about 20-30 μm, along with the toothed plate 14 / needle 13 body thickness. This results in the needle 13 having a lateral movement margin during needle movement, meaning there is a possibility of wobbling. In this case, if the protruding part of the needle 13 in this solution is subjected to lateral force from the interference part (constraint part three 20), the needle 13 is very prone to vibration, affecting the stability of the needle turn. It should be noted that in the above structure, if the side of the padding portion 13211 protrudes beyond the guide side 1311 surface of the needle body 131, when the needle 13 is located in the needle groove, the protruding padding portion 13211 can apply a lateral force to the needle 13 to push it towards the insert 12. At this time, the needle 13 extending from the needle groove is already in its final achievable state, thus effectively preventing sudden lateral displacement of the padding portion 13211 after interference. In other words, under this structure, the posture of the needle 13 during needle turning is stable and predictable. It should also be noted that in the above scheme, the padding portion 13211 can protrude 25~35μm beyond the guide side 1311 surface of the needle body 131 to provide guidance while avoiding excessive contact pressure and rapid wear.

[0083] It should also be noted that the insert 12 also experiences wobbling during the operation of the computerized flat knitting machine, which can easily cause changes in the needle groove width, resulting in unstable needle exit (if the needle groove is too narrow, the needle 13 will be squeezed in the needle groove; if the needle groove is too wide, the needle 13 will wobble in the needle groove). Therefore, it is necessary to constrain the insert 12 body to maintain the stability of the needle groove width. Specifically, a spacer 16 can be set. Specifically, a slot 161 is opened on the spacer 16, and the upper edge of the front end of the insert 12 has a matching protrusion. After the insert 12 is installed, the spacer 16 is placed between the inserts 12, and the protrusion of the insert 12 is inserted into the slot 161. It should be noted that in this solution, the spacing between each slot 161 is set to the standard distance of one needle groove.

[0084] Furthermore, it should be noted that in this design, the toothed plate 14 is also a thin metal sheet, which is also subject to the risk of swaying during the operation of the flat knitting machine. To address this, the spacer 16 in this design has a forward-extending extension 162 at its front end. This extension 162 extends forward and inserts between the two toothed plates 14 to constrain the two toothed plates 14, ensuring that the toothed plates 14 maintain a stable spacing after being subjected to lateral forces.

[0085] It should be noted that during the operation of the knitting needle 13, although the stability of its needle movement is effectively improved by the constraint on both sides, the vertical movement of the knitting needle 13 in the needle groove still lacks constraint. That is, when the knitting needle 13 is subjected to a vertical external force, the knitting needle 13 may tilt up in the needle groove. To avoid the above situation, this solution also provides a mounting groove 121 on the insert 12, in which a pressure strip 17 is inserted. The lower bottom surface of the pressure strip 17 smoothly abuts against the upper edge of the knitting needle body 131 to ensure that the knitting needle body 131 is subject to vertical constraint from the bottom of the needle groove and the pressure strip 17 when sliding in the needle groove. In addition, it should be noted that in this solution, the cross-section of the pressure strip 17 has a wavy structure and elastic expansion on both sides. It should be noted that this elastic expansion structure can effectively ensure the stability of the pressure strip 17 in the mounting groove 121.

[0086] Working principle: When the knitting needle 13 is located in the needle groove, the padding portion 13211 on the spring plate 132 acts on the side of the insert plate 12 forming the needle groove to push the knitting needle 13 laterally against the side wall of the needle groove, ensuring that the knitting needle 13 will not be laterally displaced due to the lateral action of the constraint portion three 20. At the same time, during the process of the knitting needle 13 extending out of the needle groove and turning the needle, the two sides of the knitting needle body 131 are constrained by the constraint portion one 18 and constraint portion two 19 provided on the toothed plate 14 and the sinker plate 15, which prevents the knitting needle 13 from jumping when it extends out of the needle groove and is subjected to the lateral action from the constraint portion three 20, thus maintaining the stability of the knitting action, especially the turning of the needle. It should also be noted that when the knitting needle 13 reaches the needle flipping position, the padding portion 13211 on the spring plate 132 is subjected to lateral action from the constraint portion 20, which raises the spring plate 132 so that the cavity 133 formed by the spring plate 132 and the knitting needle body 131 is enlarged, ensuring that the needle hook of the knitting needle 13 on the receiving side can smoothly enter the cavity 133.

[0087] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A knitting needle (13), characterized in that: include The needle body (131) has a guide side (1311) and a functional side (1312); A spring sheet (132) includes a connecting part (1321) and a functional part (1322). The connecting part (1321) is connected to the functional side (1312) of the needle body (131). The functional part (1322) is connected to the connecting part (1321). The functional part (1322) has an arch facing away from the functional side (1312). The functional part (1322) contacts the functional side (1312) of the needle body (131) to form a cavity (133) into which the needle hook can enter. The connecting part (1321) has a padding part (13211) that is offset from the needle body (131). When turning the needle, the padding part (13211) is interfered with to drive the functional part (1322) to lift away from the functional side (1312) of the needle body (131).

2. The knitting needle (13) as described in claim 1, characterized in that: The padding portion (13211) has guide protrusions (13212) on the advancing and retreating sides facing away from the knitting needle body (131).

3. A knitting needle (13) as described in claim 1, characterized in that: The padding portion (13211) protrudes from the guide side (1311) of the needle body (131) on the side facing the needle body (131).

4. A knitting needle (13) as described in claim 1, characterized in that: The connecting part (1321) has an arch facing away from the functional side (1312).

5. A knitting needle (13) as described in claim 1, characterized in that: The lower edge of the functional part of the needle body (131) and the spring sheet (132) is arched to form an arched part (1313), so that the lower edge of the spring sheet (132) is flush with the lower edge of the arched part (1313) on the knitting body (131) without changing the width.

6. A needle plate structure (1), characterized in that: include The needle plate (11) has equally spaced slots; Insert (12) is inserted into a slot to form a pin groove; The knitting needle (13) as described in any one of claims 1 to 4 is slidably disposed in the needle groove; Toothed piece (14) is provided at the outlet end of the needle groove; Settling plates (15) are spaced apart between toothed plates (14) and form a channel with the toothed plates (14) to guide the movement of the extended knitting needle (13). A constraint part (18) is provided on the side of the settling plate (15) facing the functional side (1312) of the knitting needle (13). When the knitting needle (13) extends out of the needle groove, the functional side (1312) of the knitting needle body (131) slides against the constraint part (18).

7. The needle plate structure (1) as described in claim 6, characterized in that: The toothed plate (14) has a second constraint part (19) on its surface facing the functional side (1312). When the needle (13) extends out of the needle groove, the lower edge of the functional side (1312) of the needle body (131) slides over the second constraint part (19).

8. The needle plate structure (1) as described in claim 6, characterized in that: The toothed plate (14) is provided with a constraint part three on the side facing the guide side (1311) of the needle body (131), and the sinker plate (15) is provided with a constraint part three on the side facing the guide side (1311) of the needle body (131). When the needle (13) extends out of the needle groove to the needle flipping position, the constraint part three or the constraint part three interferes with the padding part (13211) of the needle (13) to raise the padding part (13211) to move away from the functional side (1312) of the needle body (131).

9. The needle plate structure (1) as described in claim 6, characterized in that: It also includes a spacer (16), on which a slot is provided, and the upper edge of the insert (12) is inserted into the slot, and the spacing between adjacent slots is the preset width of the pin groove.

10. The needle plate structure (1) as described in claim 9, characterized in that: The spacer (16) is also provided with an extension section (162), which extends forward and is inserted between two toothed plates (14). The distance between two adjacent extension sections (162) is the preset distance between the two toothed plates (14).

11. The needle plate structure (1) as described in claim 6, characterized in that: It also includes a pressure strip (17), and an installation groove (121) is provided on the insert (12). The pressure strip (17) is inserted into the installation groove (121). The bottom surface of the pressure strip (17) smoothly presses against the upper edge of the knitting needle body (131). The pressure strip (17) is wavy and elastically spread out on both sides in the installation groove (121).

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