CN220788967U - Needle return structure for flat knitting machine - Google Patents
Needle return structure for flat knitting machine Download PDFInfo
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- CN220788967U CN220788967U CN202322365141.0U CN202322365141U CN220788967U CN 220788967 U CN220788967 U CN 220788967U CN 202322365141 U CN202322365141 U CN 202322365141U CN 220788967 U CN220788967 U CN 220788967U
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- needle
- return
- lifting surface
- knitting machine
- flat knitting
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- 238000009940 knitting Methods 0.000 title claims abstract description 84
- 230000000903 blocking effect Effects 0.000 claims description 29
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Knitting Machines (AREA)
Abstract
The utility model relates to a needle return structure for a flat knitting machine, which comprises a needle return triangle, wherein the upper end of the needle return triangle is provided with a first needle lifting surface, a needle return surface and a second needle lifting surface; the first needle lifting surface, the needle returning surface and the second needle lifting surface are sequentially arranged from right to left, the first needle lifting surface and the second needle lifting surface are both provided with a high end and a bottom end, and the high end of the first needle lifting surface and the high end of the second needle lifting surface are respectively connected with two ends of the needle returning surface. The return needle structure for the flat knitting machine can ensure that the knitting needles can stably return to a consistent height before entering the knitting area or after exiting the knitting area, and ensure the consistency of knitting loops.
Description
Technical Field
The utility model relates to the technical field of knitting equipment, in particular to a return needle structure for a flat knitting machine.
Background
The cam device in the flat knitting equipment is provided with a needle return structure for the flat knitting machine, the needle return structure for the flat knitting machine is used for ensuring the consistency of knitting loops by keeping the needles at a consistent height after the knitting needles go out of a knitting area, however, how to effectively design the position structure and the shape of the needle return structure for the flat knitting machine, so that the needles can stably stay at the consistent height is a technical problem to be solved by a person skilled in the art.
Disclosure of Invention
The utility model provides a return needle structure for a flat knitting machine, which can ensure that a knitting needle can stably return to a consistent height before entering a knitting area or after exiting the knitting area, and ensure the consistency of knitting loops.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the needle return structure for the flat knitting machine comprises a needle return triangle, wherein the upper end of the needle return triangle is provided with a first needle lifting surface, a needle return surface and a second needle lifting surface; the first needle lifting surface, the needle returning surface and the second needle lifting surface are sequentially arranged from right to left, the first needle lifting surface and the second needle lifting surface are respectively provided with a high end and a bottom end, and the high end of the first needle lifting surface and the high end of the second needle lifting surface are respectively connected with two ends of the needle returning surface.
Preferably, the lower end of the needle return triangle is provided with a needle pressing surface, the needle pressing surface comprises a first needle pressing surface which is obliquely downwards arranged and a second needle pressing surface which is obliquely upwards arranged, and the lower end of the first needle pressing surface is connected with the bottom end of the second needle pressing surface.
Preferably, the first needle lifting surface and the second needle lifting surface are both arc surfaces, and the central angles of the first needle lifting surface and the second needle lifting surface are in a range of 20-30 degrees.
Preferably, the first needle lifting surface and the second needle lifting surface are inclined surfaces, and the inclination angles of the first needle lifting surface and the second needle lifting surface are 15-40 degrees.
Preferably, the difference between the distance between the lowest part of the needle pressing surface and the needle return surface and the distance between the butt of the knitting needle and the butt of the jack is in the range of 0.5 to 3.5mm.
Preferably, the length of the needle return surface is 3-25mm.
Preferably, the lower end of the first needle lifting surface or the second needle lifting surface is further provided with an upper needle guiding surface matched with the needle guiding surface of the density triangle.
Preferably, the needle blocking device further comprises a needle blocking triangle, wherein the needle blocking triangle is arranged at the upper end of the needle returning triangle, and a needle blocking surface is arranged at the lower end of the needle blocking triangle.
Preferably, a first guide surface and a second guide surface are further provided at the lower end of the needle blocking triangle, the first guide surface, the needle blocking surface and the second guide surface are sequentially connected from left to right, the first guide surface is inclined downward, and the second guide surface is inclined upward.
Preferably, a thin connection plate is connected between the needle blocking triangle and the needle return triangle, and the thin connection plate, the needle return surface, and the needle blocking surface form a needle return path.
Compared with the prior art, the utility model has the beneficial effects that:
when the knitting needle moves relatively, the position of the butt of the knitting needle is lower than that of the needle return surface, and the knitting needle moves along the first needle lifting surface or the second needle lifting surface to finally move to the needle return surface during movement, so that the knitting needle can return to a consistent height stably before entering the knitting area or after exiting the knitting area, and the consistency of knitting loops is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a first embodiment of a return needle structure;
FIG. 2 is a second schematic view of a return needle structure according to an embodiment of the present utility model;
FIG. 3 is a third schematic view of a return needle structure according to an embodiment of the present utility model;
FIG. 4 is a fourth schematic view of a return needle structure according to an embodiment of the present utility model
Fig. 5 is a schematic diagram of a backstitch structure and a density triangle according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a needle return triangle; 11. a first needle lifting surface; 12. a needle return surface; 13. a second needle lifting surface; 14. a first needle pressing surface; 15. a second needle pressing surface; 16. an upper guide pin surface; 2. needle blocking triangle; 21. needle blocking surfaces; 22. a first guide surface; 23. a second guide surface; 3. connecting the thin plates; 4. a triangular bottom plate; 5. density triangle.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The embodiment of the utility model provides a needle return structure for a flat knitting machine, as shown in fig. 1, the needle return structure comprises a needle return triangle 1, the upper end of the needle return triangle 1 is provided with a needle return surface 12, the needle return surface 12 is horizontally arranged, the upper end of the needle return triangle 1 is provided with a first needle lifting surface 11, a needle return surface 12 and a second needle lifting surface 13, the first needle lifting surface 11, the needle return surface 12 and the second needle lifting surface 13 are sequentially arranged from left to right, the first needle lifting surface 11 and the second needle lifting surface 13 are respectively provided with a high end and a bottom end, the high end of the first needle lifting surface 11 and the high end of the second needle lifting surface 13 are respectively connected with two ends of the needle return surface 12, so that the position of a part of a knitting needle is lower than the needle return surface 12 before entering a knitting area or after the knitting area due to the tightness of a needle groove and the tension of yarns, and finally moves to the needle lifting surface 12 along the first needle lifting surface 11 or the second needle lifting surface 13 when the knitting area moves, so that the knitting needles can stably return to the same height before entering the knitting area or after the knitting area.
Preferably, the lower end of the needle return triangle 1 is provided with a needle pressing surface, the needle pressing surface comprises a first needle pressing surface 14 which is obliquely arranged downwards and a second needle pressing surface 15 which is obliquely arranged upwards, and the lower end of the first needle pressing surface 14 is connected with the bottom end of the second needle pressing surface 15; as shown in fig. 1, when the knitting needle moves from right to left relative to the needle return cam 1, due to the tightness of the needle groove and the tension strength of the yarn, the butt of a part of the knitting needle is higher than the needle return face 12 when passing through the needle return cam 1, so that the butt of a jack connected with the knitting needle can rise, and when the knitting needle moves relatively, the butt of the jack moves downwards along the second needle pressing face 15 to play a guiding role, the butt of the corresponding knitting needle also moves downwards, the butt of the final knitting needle moves onto the needle pressing face, the guiding role of the second needle pressing face 15 is completed, and the butt of the knitting needle moves along the needle return face 12, so that the knitting needle can return to a consistent height before entering the knitting area or after exiting the knitting area, namely, the knitting needle returns to a consistent height, the knitting needle coil is guaranteed, and similarly, when moving from left to right relative to the needle return cam 1, the first needle pressing face 14 plays a guiding role.
In summary, through setting up first needle face 11, second needle face 13, first needle face 14 and second needle face 15 of pressing on the back needle triangle, no matter the plane that the butt of knitting needle is located is higher than back needle face 12 or is less than back needle face 12, can both stable motion to back needle face 12 and along back needle face 12 motion to make the knitting needle before entering the knitting region or after going out the knitting region, can stable return to consistent height, and whole process is accomplished through only a back needle triangle 1 in addition, does not have extra accessory, takes up space little.
Preferably, as shown in fig. 1, the first needle lifting surface 11 and the second needle lifting surface 13 are arc surfaces, wherein the central angle range of the first needle lifting surface 11 and the second needle lifting surface 13 is 20-30 degrees, namely the value range of a and B in fig. 1 is 20-30 degrees, the radius setting range is 25-30mm, the first needle lifting surface 11 and the second needle lifting surface 13 in the range are relatively stable, the inertia of the butt of the knitting needle is small after the first needle lifting surface 11 or the second needle lifting surface 13 is moved, the upward jump amplitude of the butt of the knitting needle is small, and the butt of the knitting needle can fall onto the needle return surface 12 and move along the needle return surface 12 quickly.
In another embodiment, as shown in fig. 2, the first needle lifting surface 11 and the second needle lifting surface 13 are inclined surfaces, the inclination angles of the first needle lifting surface 11 and the second needle lifting surface 13 are set between 15 ° and 40 °, and are respectively shown as C and D in fig. 2, so that the first needle lifting surface 11 and the second needle lifting surface 13 are not too steep, and the occurrence of a large jump needle amplitude caused by excessive inertia of the butt of the knitting needle after the first needle lifting surface 11 or the second needle lifting surface 13 is moved is avoided.
The first needle lifting surface 11 and the second needle lifting surface 13 are in smooth transition connection with the needle returning surface 12, so that the butt of the knitting needle can stably move to the needle returning surface 12.
Specifically, the difference between the distance between the lowest part of the needle pressing surface and the needle returning surface 12 and the distance between the butt of the knitting needle and the butt of the needle jack is set to be 0.5-3.5mm, so that the allowance of the up-and-down movement of the knitting needle is reserved, and the excessive up-and-down needle stringing amplitude of the knitting needle is avoided.
Preferably, the length of the return face 12 is 3-25mm, in this embodiment the length of the return face 12 is set to 7.5mm.
Preferably, the lower end of the first needle lifting surface 11 or the second needle lifting surface 13 is further provided with an upper needle guiding surface 16 matched with the needle guiding surface of the density cam 5, when the density cam 5 descends to the limit position, the butt of the knitting needle moves to the upper needle guiding surface 16 and then is matched with the needle guiding surface at the lower part of the density cam 5, so that a long enough needle guiding path is provided for enabling a loop to be looped, then the loop is lifted directly through the first needle lifting surface 11 or the second needle lifting surface 13 and moves to the needle returning surface 12 to return to a certain height, and the upper needle guiding surface 16 is arranged on the needle returning cam 1, so that the volume of the density cam 5 can be further reduced, and the space occupied by the sliding of the density cam 5 can be further reduced; for example, as shown in fig. 5, the needle return cam 1 is mounted on the right side of the density cam 5, and then the upper guide needle surface 16 is located at the lower end of the first needle lifting surface 11, so that both the first needle lifting surface 11 and the second needle lifting surface 13 are used for lifting the needle butt, but at this time, the first needle lifting surface 11 is used for lifting the needle butt because the first needle lifting surface 11 is closer to the density cam 5, the whole needle butt is lowered because the position of the density cam 5 is lowered, then the needle butt is lifted to the needle return surface 12 through the first needle lifting surface 11, and the second needle lifting surface 13 is used for lifting the needle butt of a part of the needles because of the tightness of the needle grooves and the tension of yarns are lowered, so that the second needle lifting surface 13 is used.
In another embodiment, as shown in fig. 3, in order to better prevent the butt of a part of knitting needles from continuing to move due to inertia after passing through the first needle lifting surface 11 and the second needle lifting surface 13, a needle blocking cam 2 is further provided, the needle blocking cam 2 is provided at the upper end of the needle returning cam 1, and the lower end of the needle blocking cam 2 is provided with a needle blocking surface 21, so that when the butt of a knitting needle continues to move downwards due to inertia after passing through the first needle lifting surface 11 and the second needle lifting surface 13, the butt of a knitting needle is blocked by the needle blocking surface 21, and moves stably on the needle returning surface 12.
Specifically, the lower end of the needle blocking triangle 2 is further provided with a first guide surface 22 and a second guide surface 23, the first guide surface 22, the needle blocking surface 21 and the second guide surface 23 are sequentially connected from left to right, the first guide surface 22 is obliquely downwards arranged, the second guide surface 23 is obliquely upwards arranged, the butt of the knitting needle of the first guide surface 22 is too high in position before entering the knitting area or after exiting the knitting area, the butt of the knitting needle can pass through the guide of the first guide surface 22 or the second guide surface 23, meanwhile, the butt of the needle jack moves continuously along the first needle pressing surface 14 or the second needle pressing surface 15, and finally, the butt of the knitting needle can move stably to the needle returning surface 12 and moves along the needle returning surface 12.
In another embodiment, as shown in fig. 4, in order to further reduce the installation space of the needle blocking cam 2 and the needle return cam 1 on the cam base plate 4, a connecting sheet 3 is connected between the needle blocking cam 2 and the needle return cam 1, so that the needle blocking cam 2 and the needle return cam 1 are integrated, and the connecting sheet 3, the needle return face 12 and the needle blocking face 21 form a needle return path, and when the butt of the knitting needle moves relative to the needle return cam 1, the butt passes above the connecting sheet 3, so that the needle blocking cam 2 does not need to be provided with an installation screw hole site on the cam base plate 4, and only needs to be provided with the installation of the needle return cam 1.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.
Claims (10)
1. The needle return structure for the flat knitting machine is characterized by comprising a needle return triangle, wherein the upper end of the needle return triangle is provided with a first needle lifting surface, a needle return surface and a second needle lifting surface; the first needle lifting surface, the needle returning surface and the second needle lifting surface are sequentially arranged from right to left, the first needle lifting surface and the second needle lifting surface are respectively provided with a high end and a bottom end, and the high ends of the first needle lifting surface and the second needle lifting surface are respectively connected with two ends of the needle returning surface.
2. The needle return structure for a flat knitting machine according to claim 1, wherein the lower end of the needle return cam is provided with a needle pressing surface, the needle pressing surface comprises a first needle pressing surface which is obliquely arranged downwards and a second needle pressing surface which is obliquely arranged upwards, and the lower end of the first needle pressing surface is connected with the bottom end of the second needle pressing surface.
3. The return needle structure for a flat knitting machine according to claim 2, wherein the first lift needle surface and the second lift needle surface are both circular arc surfaces, and a central angle of the first lift needle surface and the second lift needle surface ranges from 20 ° to 30 °.
4. The return needle structure for a flat knitting machine according to claim 2, wherein the first needle lifting surface and the second needle lifting surface are inclined surfaces, and an inclination angle of the first needle lifting surface and the second needle lifting surface is set between 15 ° and 40 °.
5. The return needle structure for a flat knitting machine according to claim 2, characterized in that a difference between a distance between a lowest part of the needle pressing surface and the return needle surface and a distance between a butt of a knitting needle and a butt of a jack is in a range of 0.5 to 3.5mm.
6. The return needle structure for a flat knitting machine according to claim 1, characterized in that the length of the return needle face is 3-25mm.
7. The return needle structure for a flat knitting machine according to claim 1, wherein the lower end of the first needle lifting surface or the second needle lifting surface is further provided with an upper needle guiding surface used in cooperation with a needle guiding surface of a density triangle.
8. The return needle structure for a flat knitting machine according to claim 1, further comprising a needle blocking cam provided at an upper end of the return needle cam, and a needle blocking surface provided at a lower end of the needle blocking cam.
9. The return needle structure for a flat knitting machine according to claim 8, wherein a first guide surface and a second guide surface are further provided at the lower end of the needle blocking triangle, the first guide surface, the needle blocking surface and the second guide surface are sequentially connected from left to right, the first guide surface is disposed obliquely downward, and the second guide surface is disposed obliquely upward.
10. The return needle structure for a flat knitting machine according to claim 8, wherein a connecting sheet, the return needle face, and the return needle face are connected between the needle blocking cam and the return needle cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322365141.0U CN220788967U (en) | 2023-08-31 | 2023-08-31 | Needle return structure for flat knitting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322365141.0U CN220788967U (en) | 2023-08-31 | 2023-08-31 | Needle return structure for flat knitting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220788967U true CN220788967U (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322365141.0U Active CN220788967U (en) | 2023-08-31 | 2023-08-31 | Needle return structure for flat knitting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220788967U (en) |
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2023
- 2023-08-31 CN CN202322365141.0U patent/CN220788967U/en active Active
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