Knitting needle capable of being used for high-density needle type manufacturing

Abstract

The invention belongs to the technical field of knitting equipment, and particularly relates to a knitting needle capable of being used for high-density needle type manufacturing. Comprising a needle body and a loop transfer reed, and the needle body is provided with a needle body, a needle rod and a needle tail; a needle hook is arranged at one end of the needle rod, and a needle latch capable of being opened and closed is arranged on the needle rod on the rear side of the needle hook; the needle body is provided with a reed mounting groove for mounting a loop transfer reed; the requirement of a single knitting needle for the transverse space of a needle bed is reduced, a thinner needle type can be designed, the method can be used for high-density needle type manufacturing, and the loop transfer stability is greatly improved; the knitting needle can work more stably, and the cloth cover of the fabric is smoother; the gap between the needle body and the needle groove is further reduced, and high-density needle type manufacturing is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of knitting equipment, and in particular relates to a knitting needle which can be used for manufacturing high-density needle types. Background Art

[0002] The traditional flat knitting machine needles are transfer needles, which are symmetrically arranged on the front and rear needle beds of the flat knitting machine. When knitting the coils, the knitting needles knit the coils row by row through the opening and closing actions of the needle hook and the needle tongue. When there is a transfer action, the front and rear knitting needles cooperate with each other, the turning needle raises the high needle, the coil slides down to the turning needle part, the receiving needle raises the low needle, and inserts into the transfer spring of the turning needle, thereby completing the transfer process.

[0003] The Chinese patent with application number 2020113142947 relates to a knitting needle, which includes a needle hook, a needle tongue, a needle handle with a first transfer circle part, a spring leaf with a second transfer circle part and a front part bent outward to form a protrusion, and a rear part connected to the bottom surface of the groove to form a connecting end; the deformation surface and the protrusion do not expose the groove or the part exposed by the groove is elastically pressed in the groove by the needle groove, or the part exposed by the groove is in a recessed groove arranged on the corresponding side of the needle groove; the protrusion is driven to open outward by elastic deformation of the deformation surface, so that the coils hung on the first transfer circle part and the second transfer circle part are expanded, and the deformation surface and the protrusion are sunk in the groove in a natural state or when pressed by the needle groove, so that the overall width of the knitting needle is small, so that more knitting needles can be placed on the needle plate along the transverse direction to adapt to the high-density weaving of the flat knitting machine, and the deformation surface and the protrusion exposed by the groove can also be placed in the recessed groove arranged on the corresponding side of the needle groove to adapt to different weaving needs.

[0004] The transfer spring of the existing knitting needle is arranged in the spring installation groove on one side of the needle body, see Fig. 22 The total thickness h4 of the installed transfer spring is generally greater than the needle body thickness h, and the thickness h4 is a fixed value, so the space occupied by the knitting needle is relatively large. When designing a flat knitting machine with high-density needles, the thickness of the knitting needle causes obstacles. Some designs use a flat transfer spring design, such as the above-mentioned patent, see Fig.23 , the thickness of h4 is controlled to be less than or equal to the thickness of the needle body. This design solves the problem of knitting needle thickness, but greatly reduces the connecting space formed by the transfer spring and the needle turning part of the needle body, making it difficult to accurately insert the connecting needle into the transfer spring, which reduces the stability of the transfer action. Summary of the invention

[0005] In view of the above shortcomings, the present invention provides a knitting needle that can be used for high-density needle manufacturing. The present application reduces the requirement of a single knitting needle for the lateral space of the needle bed, and can design a finer needle type, which can be used for high-density needle manufacturing and greatly improve the stability of the transfer circle; the present application can make the knitting needle work more smoothly and the fabric surface smoother; the present application further reduces the gap between the needle body and the needle groove, which is conducive to high-density needle manufacturing.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A knitting needle that can be used for manufacturing high-density needles, comprising a needle body and a transfer spring, wherein the needle body is provided with a needle body, a needle rod and a needle tail; a needle hook is provided at one end of the needle rod, and a needle tongue that can be opened and closed is provided on the needle rod located at the rear side of the needle hook; a spring installation groove for installing the transfer spring is provided on the needle body;

[0008] The needle body is arranged in the needle groove of the front and rear needle beds of the flat knitting machine, and a avoidance groove C is arranged on the needle groove wall of the needle groove, and the avoidance groove C is arranged corresponding to the coil transfer spring.

[0009] Furthermore, the transfer coil reed is composed of a fixed plate, a fulcrum, an elastic plate, a transfer coil portion, a pre-connection needle portion and a reed head connected in sequence; the elastic plate is higher than the fixed plate, and the transfer coil portion, the pre-connection needle portion and the reed head form an arc structure.

[0010] Furthermore, a groove is provided on the surface of the needle rod at the rear side of the needle tongue for accommodating the head of the reed; a concave shape is provided at the connection between the needle body and the needle rod, and the concave shape and the transfer reed constitute the transfer space of the knitting needle; the fixing plate of the transfer reed is riveted in the reed mounting groove, and a avoidance space is provided in the reed mounting groove, and the avoidance space is located below the connection between the elastic plate and the transfer part.

[0011] Furthermore, the depth of the avoidance space is h1, and the range of h1 is 0≤h1≤the thickness of the transfer spring installation groove.

[0012] Furthermore, the height of the elastic sheet is h2, the maximum height of the transfer spring sheet is h3, and 0<h2<h3;

[0013] Furthermore, after the transfer spring is installed, the height between the highest position B of the transfer spring and the bottom of the needle body is h4, and the thickness of the needle body is h, where h<h4.

[0014] Furthermore, the width of the elastic piece D of the transfer spring is d1, the width of the spring installation groove is d2, and 0.5*d2<d1<d2.

[0015] Furthermore, the avoidance space is a through-hole structure.

[0016] Furthermore, a concave groove is provided on one side of the needle body close to the transfer space.

[0017] Furthermore, the needle tail of the needle body is linear.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present application uses a transfer spring that can deform with pressure, and sets a corresponding avoidance groove C on the needle groove wall of the needle groove; when the knitting needle moves downward and enters the needle groove, under the pressure of the groove wall, the transfer spring can be completely or partially received in the transfer spring installation groove of the needle body, thereby reducing the requirement of a single knitting needle for the lateral space of the needle bed, and can design finer needles, which can be used for high-density needle manufacturing; when the knitting needle moves upward and the transfer spring leaves the needle groove, in the state of losing the pressure of the needle groove, the transfer spring automatically rebounds under the action of its own elastic force and returns to its maximum thickness, so that the connection space between the transfer spring and the needle body becomes larger, increasing the space for the connection needle to enter the transfer spring, and can greatly improve the stability of the transfer.

[0020] (2) In the present application, the elastic sheet of the transfer spring is an elastic structure. When the transfer spring is subjected to supporting pressure as a whole, the elastic sheet will bend downward with the fulcrum as the support. Due to the structural design of the avoidance space, the elastic sheet can bend significantly, thereby ultimately greatly enhancing the storage capacity of the transfer spring installation groove, so that the transfer spring can be completely or partially stored in the transfer spring installation groove of the needle body. At this time, the transfer spring is in close contact with the needle groove under the elastic action of the elastic sheet, which can make the knitting needle work more smoothly and the fabric surface smoother.

[0021] (3) The present invention can replace the extrusion force generated by the bending structure of the tail of the traditional knitting needle due to the close compression of the coil transfer spring and the needle groove when there is no coil transfer action, so that the tail of the needle body can be designed to be straight, thereby further reducing the gap between the needle body and the needle groove, which is conducive to the manufacture of high-density needle types. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the side structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the partial structure in the side direction of the present invention;

[0025] Figure 4 It is a schematic structural diagram of the needle bed and the needle groove wall corresponding to the knitting needles on the flat knitting machine of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the knitting needle body in the present invention;

[0027] Figure 6 Schematic diagram of the structure of the transfer coil spring in Example 1 of the present invention;

[0028] Figure 7 This is a schematic structural diagram of Example 1 of the present invention when the knitting needle enters the needle groove and the transfer spring is completely stored;

[0029] Figure 8 It is a structural schematic diagram of the case where the knitting needle enters the needle groove and the transfer spring is partially stored in Embodiment 1 of the present invention;

[0030] Fig. 9 This is a schematic structural diagram of the pressure F1 generated on the transfer spring when the coil reaches the needle transfer portion in Example 1 of the present invention;

[0031] Fig.10 Schematic diagram of the structure of the needle groove wall in Embodiment 1 of the present invention;

[0032] Fig.11 Figures a and b are schematic diagrams of the structure of the embodiment 1 of the present invention, when the knitting needle moves upward and the transfer spring moves out of the needle groove wall, and when the knitting needle moves downward and the transfer spring enters the needle groove wall;

[0033] Fig.12 This is a schematic structural diagram of a transfer coil spring in Embodiment 2 of the present invention;

[0034] Fig.13 Figures a and b are schematic diagrams of the structure of the transfer coil spring before and after being received by the needle groove wall in Embodiment 2 of the present invention;

[0035] Fig.14 This is a schematic diagram of the structure of the transfer coil spring with an additional bending design in Example 3 of the present invention;

[0036] Fig.15 This is a cross-sectional view of the needle transfer part after the transfer spring is additionally bent in Example 3 of the present invention;

[0037] Fig.16 This is a schematic diagram of the structure of the transfer coil spring with an additional bending design in Example 4 of the present invention;

[0038] Fig.17 This is a cross-sectional view of the needle transfer part after the transfer spring is additionally bent in Example 4 of the present invention;

[0039] Fig.18 This is a schematic structural diagram of Example 1 of the present invention, in which a through hole is designed at the avoidance position of the transfer spring on the knitting needle body to increase the depth of the avoidance position;

[0040] Fig.19This is a schematic structural diagram of the maximum depth at which the transfer spring can be accommodated after a through hole is designed at the avoidance position of the transfer spring on the knitting needle body in Example 1 of the present invention;

[0041] Fig. 20 This is a schematic structural diagram of a knitting needle body in which the transfer position is hollowed out in Embodiment 1 of the present invention;

[0042] Fig.21 This is a schematic structural diagram of Example 1 of the present invention, in which the tail portion B on the knitting needle body is no longer bent;

[0043] Fig. 22 This is a cross-sectional view of a traditional knitting needle transfer part;

[0044] Fig.23 It is a cross-sectional view of the transfer portion of a conventional knitting needle.

[0045] The reference numerals are as follows:

[0046] Needle body-1; needle body-2; needle rod-3; needle tail-4; needle hook-5; needle tongue-6; groove-7; concave-8; transfer spring-9; fixed plate-901; fulcrum-902; elastic plate-903; transfer part-904; pre-connected needle part-905; spring head-906; elastic deformation fulcrum-907; bending point-908; bending area-909; spring installation groove-10; transfer space-11; concave groove-1101; avoidance space-12. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Example 1

[0049] like Figure 1 to Figure 23 As shown, a knitting needle that can be used for high-density needle manufacturing includes a needle body 1 and a transfer spring 9, wherein the needle body 1 is provided with a needle body 2, a needle rod 3 and a needle tail 4; a needle hook 5 is provided at one end of the needle rod 3, and a needle tongue 6 that can be opened and closed is provided on the needle rod 3 located at the rear side of the needle hook 5; a spring installation groove 10 for installing the transfer spring 9 is provided on the needle body 2;

[0050] like Figure 4 , Fig.10As shown, the needle body 1 is arranged in the needle groove of the front and rear needle beds of the flat knitting machine, and the needle groove wall is provided with a avoidance groove C, and the avoidance groove C is arranged corresponding to the transfer spring 9. The knitting needle works in the needle groove, and the transfer spring 9 protrudes from the thickness of the needle body itself in a natural state. When the transfer spring 9 is not completely inserted into the transfer spring installation groove 10, the avoidance groove C avoids the transfer spring 9.

[0051] The present application uses a transfer spring 9 that can deform with pressure, and sets a corresponding avoidance groove C on the needle groove wall of the needle groove; when the knitting needle moves downward and enters the needle groove, under the pressure of the groove wall, the transfer spring 9 can be completely or partially received into the transfer spring installation groove 10 of the needle body 2, thereby reducing the requirement of a single knitting needle for the lateral space of the needle bed, and can design finer needles, which can be used for high-density needle manufacturing; when the knitting needle moves upward and the transfer spring 9 leaves the needle groove, in the state of losing the pressure of the needle groove, the transfer spring 9 automatically rebounds and returns to the maximum thickness under the action of its own elastic force, so that the connecting loop space between the transfer spring 9 and the needle body 1 becomes larger, thereby increasing the space for the connecting knitting needle to enter the transfer spring 9, and greatly improving the stability of the transfer loop.

[0052] like Fig.11 As shown, when the front and rear knitting needles cooperate to perform the transfer action, the knitting needle is turned up and the transfer spring 9 of the knitting needle will move out of the needle groove. Under the action of elasticity, the transfer spring 9 will return to a free state, see Figure 3 , insert space Significantly enlarged, the head of the receiving needle can be more easily inserted into the insertion space of the turning needle The circle movement is more stable.

[0053] Furthermore, the transfer coil reed 9 is composed of a fixed plate 901, a fulcrum 902, an elastic plate 903, a transfer coil portion 904, a pre-connection needle portion 905 and a reed head 906 connected in sequence; the elastic plate 903 is higher than the fixed plate 901, and the transfer coil portion 904, the pre-connection needle portion 905 and the reed head 906 form an arc structure.

[0054] Furthermore, a groove 7 is provided on the surface of the needle rod 3 located at the rear side of the needle tongue 6 for accommodating the reed head 906; a concave shape 8 is provided at the connection between the needle body 2 and the needle rod 3, and the concave shape 8 and the transfer reed 9 constitute the transfer space 11 of the knitting needle; the fixing plate 901 of the transfer reed 9 is riveted into the reed mounting groove 10, and a avoidance space 12 is provided in the reed mounting groove 10, and the avoidance space 12 is located below the connection between the elastic plate 903 and the transfer part 904.

[0055] The elastic sheet 903 of the transfer spring 9 in the present application is an elastic structure. When the transfer spring 9 is under pressure as a whole, the elastic sheet 903 will bend downward with the fulcrum 902 as the support and deform. Due to the structural design of the avoidance space 12, the elastic sheet 903 can bend significantly, thereby ultimately greatly enhancing the storage capacity of the transfer spring mounting groove 10, so that the transfer spring 9 can be completely or partially stored in the transfer spring mounting groove 10 of the needle body. At this time, under the elastic action of the elastic sheet 903, the transfer spring 9 is in close contact with the needle groove, which can make the knitting needle work more smoothly and the fabric surface smoother.

[0056] like Figure 3 As shown, further, the depth of the avoidance space 12 is h1, and the range of h1 is 0≤h1≤the thickness of the transfer spring installation groove 10.

[0057] like Figure 6 As shown, further, the height of the elastic sheet 903 is h2, the maximum height of the transfer spring sheet 9 is h3, 0<h2<h3;

[0058] like Figure 6-7 As shown, the free opening thickness h3 and the stored thickness h5 of the transfer spring 9 can be designed by different needle types to meet the knitting requirements in various situations.

[0059] After the transfer spring 9 is opened freely, when the coil slides to the transfer portion 11 of the knitting needle, the coil will generate a certain pressure F1 on the transfer spring 9, see Fig. 9 Therefore, the transfer coil reed must have a certain ability to resist deformation.

[0060] After entering the needle groove, the transfer spring 9 is deformed under the action of the needle groove wall pressure F2 and is completely or partially received into the spring installation groove 10. Therefore, the transfer spring 9 is required to have a certain deformation ability.

[0061] The anti-deformation force of the transfer spring 9 is F, then F1<F<F2.

[0062] like Figure 3 As shown, further, after the transfer spring 9 is installed, the height between the highest position B of the transfer spring 9 and the bottom of the needle body 1 is h4, and the thickness of the needle body 1 is h, where h<h4.

[0063] Furthermore, the width of the elastic piece 903 of the transfer spring 9 at D is d1, the width of the spring installation groove 10 is d2, and 0.5*d2<d1<d2.

[0064] like Figure 18-19As shown, further, the avoidance space 12 is a through hole structure. Under the condition of ensuring the strength of the knitting needle body, the through hole design can greatly increase the storage depth of the transfer spring 9. When the coil density is loose on the thick needle type, the total height of the transfer spring 9 can be increased to ensure the stability of the transfer.

[0065] like Fig. 20 As shown, further, a concave groove 1101 is provided on one side of the needle body 1 near the transfer space 11. With the hollow design, when the transfer coil slides down from the needle hook 5 to the transfer part of the high needle, the denser coil has a process of expanding and then relaxing, which has a certain auxiliary effect on the stability of the transfer coil.

[0066] like Fig.21 As shown, further, the needle tail 4 of the needle body 1 is linear.

[0067] Traditional knitting needles rely on the elasticity of the bent part at the tail of the needle to squeeze the needle body against the wall of the needle groove to increase the stability of the needle. However, a certain gap needs to be designed between the needle body and the needle groove. This gap is usually 0.06mm to 0.10mm.

[0068] In the present application, the close contact and extrusion between the transfer spring 9 and the needle groove when there is no transfer action can replace the extrusion force generated by the bending structure of the traditional knitting needle tail, so that the needle tail 4 of the needle body 1 can be designed in a straight line, thereby further reducing the gap between the needle body 1 and the needle groove, which is conducive to the manufacture of high-density needles. The gap between the knitting needle body and the needle groove can be reduced to 0.02mm-0.04mm, and the manufacturing process of the knitting needle is simplified, which can effectively reduce the manufacturing cost of the knitting needle.

[0069] Example 2

[0070] In this embodiment, the structure of the knitting needle body remains basically unchanged, and the design of the transfer spring 9 is changed. Fig.12 , Fig.13 When the needle moves into the needle groove, the transfer spring is stored, see Fig.13 An elastic deformation fulcrum 907 is provided on the transfer coil spring 9.

[0071] When the transfer coil enters the needle turning part, under the action of the fabric pulling force and the coil's own tension, an extrusion force F is generated on the transfer coil spring of the needle. If the coil density is tight or the fabric pulling force is large, the extrusion force F will increase, causing insertion space. In this embodiment, due to the strong support of the elastic deformation fulcrum 907, the overall anti-deformation ability of the transfer coil spring 9 is enhanced. When the transfer coil enters the needle turning part, the insertion space It is not easy to be compressed, which is beneficial to increase the transfer stability of the tight coil.

[0072] Example 3

[0073] In this embodiment, the structure of the knitting needle body remains basically unchanged, and the design of the transfer spring 9 is increased by a bend on the basis of the embodiment 2. Fig.14 , Fig.15 A bending point 908 is set on one side of the elastic deformation fulcrum 907 on the transfer spring 9, and the bending point 908 is close to the side of the needle tail 4, which can increase the stability of the elastic deformation fulcrum 907 and prevent the elastic deformation fulcrum 907 of the transfer spring 9 from separating from the knitting needle body after the knitting needle works for a long time, thereby increasing the fatigue resistance of the knitting needle.

[0074] Example 4

[0075] In this embodiment, the structure of the knitting needle body remains basically unchanged, and the design of the transfer spring 9 is increased by a bend on the basis of the embodiment 2. Fig.16 , Fig.17 A bending area 909 is provided on one side of the elastic deformation fulcrum 907 on the transfer spring 9, and the bending area 909 is close to the needle tail 4, which can increase the stability of the elastic deformation fulcrum 907 and prevent the elastic deformation fulcrum 907 of the transfer spring 9 from being separated from the knitting needle body after the knitting needle works for a long time, thereby increasing the fatigue resistance of the knitting needle.

[0076] The above contents are further detailed descriptions of the present invention in combination with specific implementation examples. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the protection scope of the present invention.

[0077] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A knitting needle that can be used for high-density needle manufacturing, characterized in that: The needle body (1) comprises a needle body (1) and a transfer spring (9), wherein the needle body (1) is provided with a needle body (2), a needle rod (3) and a needle tail (4); a needle hook (5) is provided at one end of the needle rod (3), and an openable and closable needle tongue (6) is provided on the needle rod (3) at the rear side of the needle hook (5); and a spring installation groove (10) for installing the transfer spring (9) is provided on the needle body (2); The needle body (1) is arranged in the needle grooves of the front and rear needle beds of the flat knitting machine, and a avoidance groove C is arranged on the needle groove wall of the needle groove, and the avoidance groove C is arranged corresponding to the coil transfer spring (9).

2. A knitting needle that can be used for high-density needle manufacturing according to claim 1, characterized in that: The transfer coil spring (9) is composed of a fixed plate (901), a fulcrum (902), an elastic plate (903), a transfer coil portion (904), a pre-connection needle portion (905) and a spring head portion (906) which are connected in sequence; the elastic plate (903) is higher than the fixed plate (901), and the transfer coil portion (904), the pre-connection needle portion (905) and the spring head portion (906) form an arc structure.

3. A knitting needle that can be used for high-density needle manufacturing according to claim 2, characterized in that: A groove (7) is provided on the surface of the needle rod (3) at the rear side of the needle tongue (6) for accommodating the spring head (906); a concave shape (8) is provided at the connection between the needle body (2) and the needle rod (3), and the concave shape (8) and the transfer spring (9) form a transfer space (11) of the knitting needle; a fixing plate (901) of the transfer spring (9) is riveted into the spring installation groove (10), and a avoidance space (12) is provided in the spring installation groove (10), and the avoidance space (12) is located below the connection between the elastic plate (903) and the transfer part (904).

4. A knitting needle that can be used for high-density needle manufacturing according to claim 3, characterized in that: The depth of the avoidance space (12) is h1, and the range of h1 is 0≤h1≤the thickness of the transfer spring installation groove (10).

5. A knitting needle that can be used for high-density needle manufacturing according to claim 3, characterized in that: The height of the elastic sheet (903) is h2, the maximum height of the transfer spring sheet (9) is h3, and 0<h2<h3.

6. A knitting needle that can be used for high-density needle manufacturing according to claim 3, characterized in that: After the transfer spring (9) is installed, the height between the highest position B of the transfer spring (9) and the bottom of the needle body (1) is h4, and the thickness of the needle body (1) is h, where h<h4.

7. A knitting needle that can be used for high-density needle manufacturing according to claim 3, characterized in that: The width of the elastic piece (903) at D of the transfer coil spring (9) is d1, the width of the spring installation groove (10) is d2, and 0.5*d2<d1<d2.

8. A knitting needle that can be used for manufacturing high-density needles according to claim 3, characterized in that: The avoidance space (12) is a through-hole structure.

9. A knitting needle that can be used for high-density needle manufacturing according to claim 3, characterized in that: A concave groove (1101) is provided on one side of the needle body (1) close to the transfer space (11).

10. A knitting needle that can be used for high-density needle manufacturing according to claim 1, characterized in that: The needle tail (4) of the needle body (1) is straight.

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