Needle plate for flat knitting machine

Abstract

The utility model discloses a needle plate for a flat knitting machine, which comprises a needle plate and four groups of needles, the needle plate comprises a base plate and a plurality of inserts, a gap between two adjacent inserts is a needle groove, the four groups of needles comprise a selection needle, a spring needle, a long needle and a knitting needle, the widths of the selection needle, the spring needle, the long needle and the knitting needle are the same as the width of the needle groove, and the lower end of the knitting needle is provided with a piece groove. A reinforcing rod is further arranged on the knitting needle, the top end of the reinforcing rod is located on one side of the sheet groove, a sheet head is arranged at the upper end of the long needle, the size of the widest position of the sheet head is larger than the width of the upper end of the long needle, the specification and the size of the sheet head are the same as those of the sheet groove, the sheet head is clamped in the sheet groove, and the width of an opening in the lower end of the sheet groove is the same as the width of the upper end of the long needle. The opening of the sheet groove is shrunk through the reinforcing rod, so that the sheet head of the long needle can only be placed into the sheet groove from the side edge, and after the long needle and the knitting needle are installed in the needle groove, the long needle cannot be moved out of the sheet groove, so that the long needle and the knitting needle cannot be separated, and the failure rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flat knitting machine needle plates, and particularly relates to a needle plate for a flat knitting machine. Background Art

[0002] A flat knitting machine belongs to a weft knitting machine in knitting machines and is a commonly used processing device for knitting woolen sweaters and cashmere sweaters. A needle plate is an important component on a flat knitting machine. The structure of the needle plate generally includes a needle plate bottom plate, a small needle plate, inserts arranged on the needle plate bottom plate, sinker blades and tooth plates which are arranged on the needle plate bottom plate, match with each other and can rotate relatively. The knitting needle structure is matched with the needle plate. Generally, the knitting needle structure includes four needles with different functions, so it can be collectively referred to as four groups of needles. The existing four-group needle structure is prone to phenomena such as needle dropout, reducing the knitting efficiency. In view of the above problems, a solution is proposed as follows. Content of the Utility Model

[0003] The purpose of the utility model is to provide a needle plate for a flat knitting machine, which has the advantages of enhancing the connection reliability between the knitting needle and the long needle and reducing the probability of faults.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A needle plate for a flat knitting machine includes a needle plate and four groups of needles. The needle plate includes a substrate and a plurality of inlays. The plurality of inlays are fixed on the front side of the substrate in parallel and at equal intervals. The interval between two adjacent inlays is a needle groove. The four groups of needles include a selecting needle, a spring needle, a long needle and a knitting needle. The widths of the selecting needle, the spring needle, the long needle and the knitting needle are the same as the width of the needle groove. The selecting needle, the spring needle, the long needle and the knitting needle are located in the needle groove and are slidably connected with the needle groove. A blade groove is arranged at the lower end of the knitting needle. A reinforcing rod is also arranged on the knitting needle. The top end of the reinforcing rod is located on one side of the blade groove. The reinforcing rod is used for reducing the opening width of the lower end of the blade groove. A blade head is arranged at the upper end of the long needle. The size of the widest part of the blade head is larger than the width of the upper end of the long needle. The specification and size of the blade head are the same as those of the blade groove. The blade head is clamped in the blade groove. The opening width of the lower end of the blade groove is the same as the width of the upper end part of the long needle.

[0006] Preferably, the blade head is circular, the blade groove is an incomplete circle, and the opening width of the lower end of the blade groove is smaller than the diameter of the blade head.

[0007] Preferably, a long needle butt and a clamping block are arranged on one side of the long needle, and the clamping block is located above the long needle butt. A clamping part is arranged at the lower end of the reinforcing rod. The lower end surface of the clamping part abuts against the upper end surface of the long needle butt. The transverse height of the clamping part is smaller than the transverse height of the long needle butt. A clamping groove is arranged at the rear side of the clamping part. The clamping groove is in clamping fit with the clamping block.

[0008] Preferably, the selector needle is provided with an upper front heel, a lower front heel, selector teeth and a rear heel. The upper front heel, the lower front heel and the selector teeth are all located on one side of the selector needle, and the rear heel is located on the other side of the selector needle. The selector teeth are located above the lower front heel and adjacent to the lower front heel.

[0009] Preferably, the spring needle is provided with a spring piece heel and a spring foot. The spring foot is connected to the middle and lower position of the spring needle. The lowermost position of the spring foot is lower than the lowermost position of the spring needle. There is a gap between the spring foot and the spring needle. The lower end of the spring needle abuts against the rear heel of the selector needle. One side of the spring foot abuts against the inner side wall of the needle groove on the needle plate. The position of the spring piece heel is higher than the top of the selector needle. The rear side of the spring piece heel abuts against one side of the long needle.

[0010] Preferably, the height of the selector needle is 66 mm - 68 mm, the height of the spring needle is 60 mm - 62 mm, and the height from the top of the spring needle to the lowermost end of the spring foot is 69 mm - 71 mm.

[0011] Preferably, the height of the substrate is 165 mm - 170 mm, and the height of the insert is 152 mm - 157 mm.

[0012] Preferably, a toothed mouthpiece is provided on the top of the substrate. The toothed mouthpiece includes a head, a tail and a stabilizing part. A hook part is provided at one end of the tail of the toothed mouthpiece away from the head. One end of the hook part bends upward. The width of the hook part is smaller than the width of the tail. A pad part is provided on the side of the upper end of the insert away from the first pressing groove. The hook part of the toothed mouthpiece is located between the pad part of the insert and the substrate. The stabilizing part is in the shape of a bent rod. There is a gap between the stabilizing part and the tail. The toothed mouthpiece is stuck on the top end of the substrate through this gap, and the stabilizing part abuts against the rear side of the substrate.

[0013] Preferably, a positioning groove is further provided on the substrate. The positioning groove is horizontally arranged above the front side of the substrate. A positioning rod is inserted into the positioning groove. A positioning hole is provided on the toothed mouthpiece. The positioning rod is inserted into the positioning hole. The positioning rod is used to stabilize the position of the toothed mouthpiece.

[0014] Preferably, a sinker is further provided on the substrate. A rotating hole is provided on the sinker. The sinker is rotatably connected to the positioning rod through the rotating hole.

[0015] The beneficial effects of the present utility model are as follows: The reinforcing rod changes the shape of the piece groove from a semi-circular arc to an almost complete circle, making the width of the opening of the piece groove much smaller than the height of the diameter of the circle corresponding to the piece groove. As a result, the piece head placed in the piece groove cannot be removed from this opening. Due to being restricted by the needle grooves on both sides, when the long needle pushes the knitting needle to move, it will not separate from the knitting needle, thereby preventing the occurrence of needle dropout and improving the knitting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the embodiment;

[0017] Figure 2 is a schematic cross-sectional view of the side structure of the embodiment;

[0018] Figure 3 is a schematic diagram showing the structure of four groups of needles of the embodiment;

[0019] Figure 4 is a schematic diagram showing the structure of the knitting needle of the embodiment;

[0020] Figure 5 is a schematic diagram showing the structure of the long needle of the embodiment;

[0021] Figure 6 is a schematic diagram showing the structure of the spring needle of the embodiment;

[0022] Figure 7 is a schematic diagram showing the structure of the needle selection of the embodiment;

[0023] Figure 8 is a schematic cross-sectional structure diagram after the needle plate of the embodiment is dispersed.

[0024] Reference numerals: 1, needle selection; 2, spring needle; 3, long needle; 4, knitting needle; 5, piece head; 6, piece groove; 7, reinforcing rod; 8, clamping part; 9, clamping groove; 10, long needle butt; 11, clamping block; 12, upper front butt; 13, lower front butt; 14, needle selection tooth; 15, rear butt; 16, spring butt; 17, spring foot; 18, base plate; 19, insert piece; 20, sinker; 21, tooth mouth piece; 22, head; 23, tail; 24, stabilizing part; 25, positioning groove; 26, positioning rod; 27, positioning hole; 28, hook part; 29, needle groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following is only the preferred embodiment of the present utility model, and the protection scope is not limited to this embodiment. All technical solutions within the idea of the present utility model shall fall within the protection scope of the present utility model. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom" and "top", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively.

[0026] As Figures 1 to 8 shown, a needle plate for a flat knitting machine includes a needle plate and four groups of needles. The needle plate includes a base plate 18 and a plurality of inserts 19. The plurality of inserts 19 are fixed on the front side of the base plate 18 in parallel and at equal intervals, and the interval between two adjacent inserts 19 is a needle groove 29.

[0027] A toothed piece 21 is provided at the top of the base plate 18. A positioning groove 25 is provided on the base plate 18. A positioning rod 26 is inserted into the positioning groove 25. A positioning hole 27 is provided on the toothed piece 21. The positioning rod 26 is inserted into the positioning hole 27 to fix the position of the toothed piece 21.

[0028] The toothed piece 21 includes a head 22, a tail 23 and a stabilizing portion 24. A hook portion 28 is provided at one end of the tail 23 of the toothed piece 21 away from the head 22, and one end of the hook portion 28 is bent upward. A cushion portion is provided on the side of the upper end of the insert 19 away from the first pressing groove. There is a height difference between the rear side edge of the cushion portion and the rear side edge of the insert 19, that is, the position of the rearmost side of the cushion portion is more forward than the position of the rearmost side of the insert 19. The width of the hook portion 28 is smaller than the width of the tail 23. When the insert 19 is fixedly connected to the base plate 18, there is a gap between the rear side of the cushion portion and the base plate 18, and the width of this gap is the same as the width of the hook portion 28. Therefore, when the toothed piece 21 is fixed on the base plate 18 and then the insert 19 is fixed on the base plate 18, the cushion portion of the insert 19 can press on the position of the hook portion 28 of the toothed piece 21, so that the hook portion 28 of the toothed piece 21 cannot shake, increasing the stability of the toothed piece 21.

[0029] The head 22 and the tail 23 of the toothed piece 21 are of conventional structures. During installation, the tail 23 is snap-fitted into the needle groove 29 on the front side of the base plate 18. There is an interval between the stabilizing portion 24 and the tail 23. The toothed piece 21 is clamped on the top of the base plate 18 through this interval, so that the stabilizing portion 24 abuts against the rear side wall of the base plate 18. The stabilizing portion 24 of the toothed piece 21 is in the shape of a bent rod. In this application, the upper end of the stabilizing portion 24 is an inclined rod with a slope similar to the rear side of the head 22, and the lower end of the stabilizing portion 24 is a straight rod vertically downward. After being fixed to the base plate 18, the straight rod at the lower end of the stabilizing portion 24 will abut against the rear side wall of the base plate 18, increasing the stability of the toothed piece 21.

[0030] The sinker 20 is also provided on the substrate 18. A rotating hole is provided on the sinker 20, and the sinker 20 is rotationally connected to the positioning rod 26 through the rotating hole. The positioning rod 26 can fix the position of the sinker 20, and the sinker 20 can rotate around the positioning rod 26.

[0031] The four groups of needles include the selecting needle 1, the spring needle 2, the long needle 3, and the knitting needle 4. The selecting needle 1, the spring needle 2, the long needle 3, and the knitting needle 4 are all fixed in the needle groove 29 and are slidably connected to the needle groove 29. The widths of the selecting needle 1, the spring needle 2, the long needle 3, and the knitting needle 4 are the same as the width of the needle groove 29. In actual production, the width of the needle groove 29 is slightly larger than the widths of the selecting needle 1, the spring needle 2, the long needle 3, and the knitting needle 4.

[0032] The selecting needle 1 is provided with an upper front butt 12, a lower front butt 13, a selecting tooth 14, and a rear butt 15. The upper front butt 12, the lower front butt 13, the selecting tooth 14, and the rear butt 15 are similar to the existing conventional designs. The upper front butt 12, the lower front butt 13, and the selecting tooth 14 are all located on one side of the selecting needle 1, and the rear butt 15 is located on the other side of the selecting needle 1. The selecting tooth 14 is located above the lower front butt 13 and is adjacent to the lower front butt 13.

[0033] The lower front butt 13 moves along the triangular track in the machine head, pushing the selecting needle 1 to rise along the needle groove 29, so that the spring needle 2 is pushed to three different working positions by the rear butt 15, enabling the knitting needle 4 to meet different knitting requirements; the upper front butt 12 is used to press the raised selecting needle 1 back to the starting position; the selecting tooth 14 on the selecting needle 1 is controlled by the selecting swing piece of the selector on the external machine head.

[0034] The spring needle 2 is similar in structure to the existing spring needle 2. The spring needle 2 is provided with a spring butt 16 and a spring foot 17. The spring foot 17 is connected to the middle and lower position of the spring needle 2, and the lowest position of the spring foot 17 is lower than the lowest position of the spring needle 2. After being installed in the needle groove 29, the lower end of the spring needle 2 abuts against the rear butt 15 of the selecting needle 1, one side of the spring foot 17 abuts against the inner side wall of the needle groove 29, the position of the spring butt 16 is higher than the top of the selecting needle 1, and the rear side of the spring butt 16 abuts against one side of the long needle 3. There is a gap between the spring foot 17 and the spring needle 2, and this design enables the spring foot 17 to generate an elastic force on the spring needle 2, enabling the spring needle 2 to work properly.

[0035] The lower end of the knitting needle 4 is provided with a blade groove 6. The knitting needle 4 is also provided with a reinforcing rod 7. The top end of the reinforcing rod 7 is located on one side of the blade groove 6. The blade groove 6 is jointly formed between one side of the upper end of the reinforcing rod 7 and the knitting needle 4. The blade groove 6 is an incomplete circle. The long needle 3 is provided with a blade head 5. The blade head 5 is circular. The diameter of the blade head 5 is slightly smaller than the diameter of the blade groove 6, but larger than the width of the opening of the blade groove 6. The width of the opening of the blade groove 6 is slightly larger than the width of the connection between the long needle 3 and the blade head 5. Before being installed into the needle groove 29, the blade head 5 of the long needle 3 can be inserted into the blade groove 6 from the side. When the long needle 3 and the knitting needle 4 are installed into the needle groove 29, since the width of the needle groove 29 is similar to the widths of the long needle 3 and the knitting needle 4, the long needle 3 cannot move laterally. Also, since the blade head 5 cannot be removed from the opening of the blade groove 6, the long needle 3 and the knitting needle 4 cannot be separated, thus reducing the failure rate.

[0036] The lower end of the reinforcing rod 7 is provided with a clamping portion 8. The top of the clamping portion 8 is inclined to one side. The lower end of the clamping portion 8 is horizontally bent towards the direction where the knitting needle 4 is located, so that a clamping groove 9 is formed on one side of the clamping portion 8. One side of the long needle 3 is provided with a long needle butt 10 and a clamping block 11. After the long needle 3 is installed on the knitting needle 4, the clamping groove 9 will be sleeved on the clamping block 11, and the lowermost end of the clamping portion 8 will abut against the upper end face of the long needle butt 10. The height of the clamping portion 8 is less than the height of the long needle butt 10, so it will not affect the normal operation of the long needle butt 10.

[0037] In this design, the height of the selector needle is 66 mm - 68 mm, the height of the spring needle is 60 mm - 62 mm; the height from the top of the spring needle to the lowermost end of the spring foot is 69 mm - 71 mm; the height of the substrate is 165 mm - 170 mm; the height of the insert is 152 mm - 157 mm.

[0038] Specifically, the substrate is 168 mm long, the insert is 155 mm long, the selector needle is 67 mm long, the spring needle is 61 mm long, the length from the top of the spring needle to the lowermost end of the spring foot is 69 mm, the length of the long needle is 93 mm, the length of the knitting needle is 78 mm, and the error range is 1 mm.

[0039] For the commonly used ones currently, the substrate is 211 mm long, the insert is 198 mm long, the selector needle is 82 mm long, the spring needle is 68 mm long, the length from the top of the spring needle to the lowermost end of the spring foot is 86 mm, the length of the long needle is 113 mm, the length of the knitting needle is 89 mm, and the error range is 1 mm.

[0040] Compared with the existing needle plate and four groups of needles, the specifications adopted in this application are smaller, which can greatly reduce the cost of raw materials and does not affect normal knitting. Since the shortening amounts of the insert and the substrate are larger than those of the large needle plate and the four groups of needles, during the knitting process of the knitting needle, the time required for the needle to come out is also shorter, and the efficiency of the needle coming out can be improved.

[0041] In the specific embodiments described above, the technical problems solved, technical solutions and beneficial effects of the present utility model have been further described in detail. It should be understood that the above description is only for the specific embodiments of the present utility model and is not used to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A needle plate for a flat knitting machine, comprising a needle plate and four sets of needles, characterized in that: The needle plate comprises a base plate (18) and a plurality of inserts (19), wherein the plurality of inserts (19) are fixed on the front side of the base plate (18) in parallel and at equal intervals, and the interval between two adjacent inserts (19) is a needle groove (29). The four groups of needles comprise a selection needle (1), a spring needle (2), a long needle (3) and a knitting needle (4), and the width of the selection needle (1), the spring needle (2), the long needle (3) and the knitting needle (4) is the same as the width of the needle groove (29). The selection needle (1), the spring needle (2), the long needle (3) and the knitting needle (4) are located in the needle groove (29) and slide with the needle groove (29). The knitting needle (4) is connected with the knitting needle (4), the lower end of which is provided with a sheet groove (6), and the knitting needle (4) is also provided with a reinforcing rod (7), the top end of the reinforcing rod (7) is located on one side of the sheet groove (6), and the reinforcing rod (7) is used to reduce the opening width of the lower end of the sheet groove (6), and the upper end of the long needle (3) is provided with a sheet head (5), the size of the widest part of the sheet head (5) is greater than the width of the upper end of the long needle (3), the specification and size of the sheet head (5) are the same as those of the sheet groove (6), the sheet head (5) is clamped in the sheet groove (6), and the opening width of the lower end of the sheet groove (6) is the same as the width of the upper end of the long needle (3).

2. A needle plate for a flat knitting machine according to claim 1, characterized in that: The sheet head (5) is circular, the sheet slot (6) is an incomplete circle, and the opening width of the lower end of the sheet slot (6) is smaller than the diameter of the sheet head (5).

3. A needle plate for a flat knitting machine according to claim 1, characterized in that: A long needle butt (10) and a clamping block (11) are provided on one side of the long needle (3), and the clamping block (11) is located above the long needle butt (10). A clamping portion (8) is provided at the lower end of the reinforcing rod (7), and the lower end surface of the clamping portion (8) abuts against the upper end surface of the long needle butt (10). The lateral height of the clamping portion (8) is smaller than the lateral height of the long needle butt (10). A clamping groove (9) is provided on the rear side of the clamping portion (8), and the clamping groove (9) is clamped and matched with the clamping block (11).

4. A needle plate for a flat knitting machine according to claim 1, characterized in that: The needle selection device (1) is provided with an upper front butt (12), a lower front butt (13), a needle selection tooth (14) and a rear butt (15); the upper front butt (12), the lower front butt (13) and the needle selection tooth (14) are all located on one side of the needle selection device (1); the rear butt (15) is located on the other side of the needle selection device (1); the needle selection tooth (14) is located above the lower front butt (13) and is adjacent to the lower front butt (13).

5. A needle plate for a flat knitting machine according to claim 4, characterized in that: The spring needle (2) is provided with a spring heel (16) and a spring foot (17). The spring foot (17) is connected to the middle and lower position of the spring needle (2). The lower end of the spring foot (17) is lower than the lower end of the spring needle (2). There is a gap between the spring foot (17) and the spring needle (2). The lower end of the spring needle (2) abuts against the rear heel (15) of the needle selection (1). One side of the spring foot (17) abuts against the inner side wall of the needle groove (29) on the needle plate. The position of the spring heel (16) is higher than the top of the needle selection (1). The rear side of the spring heel (16) abuts against one side of the long needle (3).

6. A needle plate for a flat knitting machine according to claim 1, characterized in that: The height of the selection needle (1) is 66mm-68mm, the height of the spring needle (2) is 60mm-62mm, and the height from the top of the spring needle (2) to the lowest end of the spring foot (17) is 69mm-71mm.

7. A needle plate for a flat knitting machine according to claim 1, characterized in that: The height of the base plate (18) is 165 mm-170 mm, and the height of the insert (19) is 152 mm-157 mm.

8. A needle plate for a flat knitting machine according to claim 7, characterized in that: A toothed plate (21) is provided at the top of the base plate (18), and the toothed plate (21) comprises a head portion (22), a tail portion (23) and a stabilizing portion (24). A hook portion (28) is provided at one end of the tail portion (23) of the toothed plate (21) away from the head portion (22), and one end of the hook portion (28) is bent upward, and the width of the hook portion (28) is smaller than the width of the tail portion (23). A pad portion is provided at the side of the upper end of the insert (19) away from the pressing groove, and the hook portion (28) of the toothed plate (21) is located between the pad portion of the insert (19) and the base plate (18). The stabilizing portion (24) is in the shape of a bent rod, and there is a gap between the stabilizing portion (24) and the tail portion (23). The toothed plate (21) is clamped at the top end of the base plate (18) through the gap, and the stabilizing portion (24) abuts against the rear side of the base plate (18).

9. A needle plate for a flat knitting machine according to claim 8, characterized in that: The base plate (18) is also provided with a positioning groove (25), the positioning groove (25) is transversely arranged at an upper position on the front side of the base plate (18), a positioning rod (26) is inserted into the positioning groove (25), a positioning hole (27) is opened on the toothed plate (21), the positioning rod (26) is inserted into the positioning hole (27), and the positioning rod (26) is used to stabilize the position of the toothed plate (21).

10. A needle plate for a flat knitting machine according to claim 9, characterized in that: A sinker (20) is also provided on the base plate (18), a rotating hole is opened on the sinker (20), and the sinker (20) is rotatably connected to the positioning rod (26) through the rotating hole.

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