Novel back stitching unit for computerized flat knitting machine
By designing a new needle return unit with adjustable height, the problem that the existing needle return triangle cannot adjust the position height is solved, achieving smoothing of the needle, reducing resistance and noise, and improving service life and cost.
Patent Information
- Application Number
- CN202422225532.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The design of the current computer flatbed back needle triangle cannot adjust the position height, which makes it difficult to operate and long time, affects work efficiency, and the connection is prone to breakage, causing damage to parts and economic losses.
A new type of needle return unit is designed, including a first needle return triangle and a second needle return triangle, which can swing up and down around the first needle return triangle, adjust the height, reduce noise and resistance, and protect the spring pins through the projection and limiting convex edges.
The needle movement is smoother, which reduces the resistance and noise of the knitting needles, extends the service life of the needle return triangle, and reduces maintenance and production costs.
Smart Images
Figure CN223017113U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of computer flat knitting machines, and particularly relates to a novel needle return unit for a computer flat knitting machine. Background Art
[0002] The main function of the needle return cam is to cooperate with the upper guard mountain to determine the height of the return position of the long needle. And when knitting special patterns such as drum waves and partial knitting, the purpose of smooth knitting can be achieved by adjusting the height of its position. At present, the needle return cam 10 of the knitting computer flat knitting machine adopts a diamond structure (as shown in Figure 1 ), and is directly fixed on the mother board, and the position height cannot be adjusted. In different situations, only the needle return cam 10 can be removed, reinstalled after adjusting the position. The operation difficulty is relatively high, and the time required for adjusting the position is relatively long, which affects the working efficiency of the machine and the economic interests of users. Moreover, the connecting part 102 between the needle return cam 10 and the adjusting end 101 is very thin, and the connecting part 102 of the needle return cam 10 is easily broken due to frequent disassembly and assembly, resulting in damage to parts, thus causing economic losses to users. Content of the Utility Model
[0003] The technical problem to be solved by the embodiments of the utility model is to provide a novel needle return unit for a computer flat knitting machine, which has smoother needle movement, reduced resistance and reduced noise, greatly improves the service life of the needle return cam, and reduces production costs.
[0004] To achieve the above object, the utility model discloses a novel needle return unit for a computer flat knitting machine, which includes a first needle return cam and a second needle return cam. The first needle return cam is fixedly arranged on the mountain plate. A fixed adjusting seat is fixedly arranged on one side of the mountain plate. A transfer groove is arranged on the side of the first needle return cam facing the second needle return cam, so that one end of the second needle return cam is placed in the transfer groove of the first needle return cam and is rotatably connected with the mountain plate. An adjusting groove is arranged on the fixed adjusting seat. The other end of the second needle return cam is fixedly connected with the adjusting groove of the fixed adjusting seat through a locking member. And a first protrusion is arranged on the surface of the first needle return cam far from the second needle return cam, and a second protrusion is arranged on the upper surface of the first needle return cam, so that the spring needle feet at positions A and H gradually retreat to position B under the action of the side walls of the first protrusion and the second protrusion.
[0005] Furthermore, a second protrusion is arranged on the upper surface of the first needle return cam, and the height of the second protrusion is greater than that of the first protrusion, so that a limiting convex edge is formed at the lower edge of the second protrusion to prevent the spring needle feet from moving up and down.
[0006] Further, a shaft hole opposite to the transfer groove is provided at the end face of the mountain plate, and one end of the second return needle triangle has a rotating shaft hole corresponding to the shaft hole.
[0007] Further, the thickness of the second return needle triangle is less than that of the first return needle triangle.
[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0009] (1) In the present utility model, the existing return needle triangle is designed into two independent first return needle triangles and second return needle triangles. One end of the second return needle triangle can swing up and down around the first return needle triangle to adjust the height of the second return needle triangle, so as to make the needle feeding smoother, greatly reduce the resistance of the knitting needle and reduce the noise, and it is not easy to break, greatly improving the service life of the return needle triangle. Moreover, the first return needle triangle and the second return needle triangle can be replaced separately, greatly reducing the maintenance cost and production cost. (2) The first return needle triangle is provided with a first convex part and a second convex part. By using the first and second convex parts, the spring needle feet at positions A and H can be retracted to position B for reselecting needles. When the spring needle feet are in position H, the spring needle feet are limited by the limiting convex edge to prevent the spring needle feet from moving up and down, making the needle feeding smoother, reducing the noise and improving the knitting effect. Description of the Drawings
[0010] Figure 1 is a schematic diagram of the overall structure of the existing return needle triangle;
[0011] Figure 2 is a schematic diagram of the overall structure of the present utility model;
[0012] Figure 3 is shown Figure 1 a schematic diagram of the structure of part A in;
[0013] Figure 4 is an exploded view of the overall structure of the first and second return needle triangles. Detailed Embodiments
[0014] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings.
[0015] Referring to Figure 2 as shown, a new return needle unit for a computer flat knitting machine includes a first return needle triangle 1, a second return needle triangle 2, and a mountain plate 3. The first return needle triangle 1 is fixedly arranged on the mountain plate 3. A transfer groove 11 is arranged on one side of the first return needle triangle 1 facing the second return needle triangle 2, so that one end of the second return needle triangle 2 is placed in the transfer groove 11 of the first return needle triangle 1 and is rotatably connected to the mountain plate 3.
[0016] Referring to Figure 3 as shown, in this embodiment, the mountain plate has a pressing unit, which is a prior art. The pressing unit has three gears A, H, and B. The spring pin sinks into the needle slot under pressure in the pressing unit and resets under its own elastic force when leaving the pressing unit. To avoid the friction between the heel end face of the spring pin and the surface of the first return needle triangle 1 when the spring pin resets.
[0017] In this embodiment, a first protrusion 12 is provided on the surface of the first return needle triangle 1 away from the second return needle triangle 2, so that the upper heel of the spring pin gradually moves down along the side wall of the first protrusion 12 after leaving the pressing unit, and the spring pin returns to position B under the action of the first protrusion 12.
[0018] More preferably, a second protrusion 13 is provided on the upper surface of the first return needle triangle 1, and the height of the second protrusion 13 is greater than that of the first protrusion 12, so that a limiting convex edge 131 is formed at the lower edge of the second protrusion 13. When the spring pin is selected to rise to position H, the limiting convex edge 131 is used to limit and cooperate with the upper heel of the spring pin to avoid the spring pin from moving up and down, ensure that the knitting needle moves more smoothly, reduce noise, and improve the knitting effect.
[0019] Referring to Figure 3 - Figure 4 as shown, further, a fixed adjustment seat 31 is fixedly provided on one side of the mountain plate 3. In this embodiment, a rotating shaft hole is provided at one end of the second return needle triangle 2, and a shaft hole opposite to the transfer slot 11 is provided on the end face of the mountain plate 3. The end of the second return needle triangle 2 is placed in the transfer slot 11 to align the shaft hole with the rotating shaft hole, so that the rotating shaft hole of the second return needle triangle 2 and the shaft hole of the mountain plate 3 are axially connected through a connecting component. In this embodiment, the connecting component is preferably a pin shaft, so that the second return needle triangle 2 can swing up and down in the transfer slot 11. And a fixing hole is provided at the other end of the second return needle triangle 2, and an adjustment groove 311 is provided on the fixed adjustment seat 31. The other end of the second return needle triangle 2 is fixedly connected to the adjustment groove 311 of the fixed adjustment seat 31 through a locking component. In this embodiment, the locking component is preferably a screw and a nut. Therefore, by loosening the locking component, the second return needle triangle 2 can be swung up and down to change the height of the second return needle triangle 2, making the movement of the long needle feet smoother, greatly reducing the resistance of the long needle feet and reducing the generation of noise, thereby improving the stability of the knitting needle knitting.
[0020] Referring to Figure 4 as shown, the thickness of the second return needle triangle 2 is smaller than that of the first return needle triangle 1, and the surface of the fixed adjustment seat 31 and the surface of the mountain plate 3 are on the same horizontal plane. Compared with the existing return needle triangle, the return needle unit in this embodiment is not easily broken. At the same time, if the first return needle triangle or the second return needle triangle is damaged, it is not necessary to replace the whole, which greatly reduces the production cost.
[0021] Certainly, the above embodiments are only for illustrating the technical concept and features of the present utility model. The purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly, and it should not be used to limit the protection scope of the present utility model. All modifications made according to the spirit and essence of the main technical solution of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A new type of backstitch unit for a computerized flat knitting machine, characterized in that: The invention comprises a first needle-returning cam (1) and a second needle-returning cam (2), wherein the first needle-returning cam (1) is fixedly arranged on a mountain plate (3), a fixed adjustment seat (31) is fixedly arranged on one side of the mountain plate (3), a transfer groove (11) is arranged on the side of the first needle-returning cam (1) facing the second needle-returning cam (2), so that one end of the second needle-returning cam (2) is placed in the transfer groove (11) of the first needle-returning cam (1) and is rotatably connected to the mountain plate (3), an adjustment groove (311) is arranged on the fixed adjustment seat (31), the other end of the second needle-returning cam (2) is fixedly connected to the adjustment groove (311) of the fixed adjustment seat (31) through a locking component, and a first protrusion (12) is arranged on the surface of the side of the first needle-returning cam (1) away from the second needle-returning cam (2), so that the upper heel of the spring pin gradually retreats to the B position under the action of the side wall of the first protrusion (12) after leaving the pressing unit.
2. A new type of backstitch unit for a computerized flat knitting machine according to claim 1, characterized in that: A second protrusion (13) is provided on the upper surface of the first backstitch triangle (1), and the height of the second protrusion (13) is greater than that of the first protrusion (12), so that the lower edge of the second protrusion (13) forms a limiting protrusion (131) for preventing the spring pin from moving up and down.
3. A new type of backstitch unit for a computerized flat knitting machine according to claim 1, characterized in that: The end surface of the mountain plate (3) is provided with an axial hole opposite to the adapter groove (11), and one end of the second return needle triangle (2) has a rotating shaft hole corresponding to the axial hole.
4. A new type of backstitch unit for a computerized flat knitting machine according to claim 1, characterized in that: The thickness of the second backstitch triangle (2) is smaller than the thickness of the first backstitch triangle (1).