A control mechanism for a presser ring of a computerized flat knitting machine
By designing the coordination of movable and return cams in the flat knitting machine to form a needle path, the problems of yarn floating and needle collision with the sinker are solved, thus improving knitting quality and equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGXIANG QIANG LONG MASCH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
AI Technical Summary
In existing flat knitting machines, the yarn is easily affected by external factors during loop formation or transfer, leading to loose yarn. Furthermore, if the movable cam falls off at an abnormal position, it may cause the sinker to hit the needle, affecting the knitting quality and safety.
The design employs a combination of movable and return triangles. The movement of the movable triangle and the guidance of the return triangle form a needle path, ensuring that the sinker effectively presses the loop during loop formation and needle reset, thus avoiding the risk of needle collision caused by the movable triangle falling off.
It effectively reduces the floating yarn phenomenon, improves the weaving quality and equipment reliability, and avoids the problem of sinker hitting the needle due to the falling off of the movable triangle.
Smart Images
Figure CN224412037U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the control mechanism in a computerized flat knitting machine, and in particular to a pressing control mechanism for a computerized flat knitting machine. Background Technology
[0002] Flat knitting machines are essential equipment in the knitting industry. Through the coordination of various functional triangles, they control the needle trajectory to ultimately complete the knitting process. Existing flat knitting machines require the action of a sinker during loop formation or transfer to better complete the process: during the needle extension phase, the sinker must press down to hold the loop in place, preventing the loop from floating due to the needle extending. Just before the loop formation or transfer is complete, the sinker must return to its original position to move away from the loop, completing the loop formation or transfer. This sinker operation is a known and mature control method in the industry, used in most flat knitting machines. However, through long-term observation and summarization, it has been found that when the needle is in the reset phase after needle flipping or joining, if the yarn is pulled by external influences, floating yarn can also occur, affecting the final knitting quality. Therefore, implementing a loop-pressing action during this process can significantly improve the problem of floating yarn after needle flipping or joining.
[0003] It is known that the technical solution of patent number 202521042384.3 is the closest to the prior art in this application. This technical solution improves the triangular mechanism so that during the operation of the flat knitting machine, the sinker can perform a coil pressing action on the coil when forming the loop and when the needle is in the reset state, thereby reducing the occurrence of floating loops during knitting.
[0004] However, it is important to know that, as Figure 1 As shown, the movable triangle in the above scheme has certain potential risks during operation. Specifically, the movable triangle in the above scheme needs to move laterally during its construction to cooperate with the lower triangle in forming the guide channel for the settling plate. This means that if the movable triangle detaches after sliding to an abnormal position, the rising lower triangle will block the detached movable triangle, thus blocking the guide channel and causing the settling plate to collide with the needle when passing through. Utility Model Content
[0005] The purpose of this utility model is to provide a control mechanism for pressing the rings on a computer flat knitting machine, which improves the technical problem of the risk of needle collision in the existing technical solution while retaining the dual working area.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A computerized flat knitting machine pressing control mechanism, including
[0008] Matrix;
[0009] The movable triangular part is mounted on the base in a way that allows it to be raised and lowered, and the movable triangular part has an upward protrusion;
[0010] A return triangle is provided on the base, and the return triangle has a downward protrusion;
[0011] The movable triangular part moves up and down to cooperate with the returning triangular part to form a needle path that can drive the sinker to flip down before the yarn is looped and when the knitting needle is reset to press the yarn.
[0012] Preferably, the movable triangular part includes movable triangle A and movable triangle B, which are symmetrically arranged. Movable triangle A and movable triangle B have upward protrusions on both sides to form a clearance passage surface for the reset sinker. The upward protrusion of the needle-coming side bevel starts at the position corresponding to the needle reset before looping.
[0013] Preferably, the movable triangular portion includes movable triangle C, movable triangle D, and movable triangle E. Movable triangles C, D, and E have upward protrusions. The upward protrusion of movable triangle D and the upward protrusions of movable triangles C and E on both sides respectively form the avoidance passage surface of the avoidance and reset sinker. The needle-coming side inclined edge of the upward protrusion of movable triangles C and E starts at the position corresponding to the needle reset before loop formation.
[0014] Preferably, the movable triangular part includes a movable triangle F, which has three upward protrusions to form a clearance passage surface for the reset sinker. The needle-side oblique edges of the protrusions on both sides of the movable triangle F start at the position corresponding to the needle reset before loop formation.
[0015] Preferably, the repositioning triangle includes repositioning triangle A, repositioning triangle B, repositioning triangle C, and repositioning triangle D. The height of repositioning triangle A, repositioning triangle B, repositioning triangle C, and repositioning triangle D is not higher than the protrusion height of the movable triangle. Repositioning triangle A, repositioning triangle B, repositioning triangle C, and repositioning triangle D have downward protrusions. Repositioning triangle A and repositioning triangle D are located on both sides of the movable triangle to guide the settling plate entering and exiting the needle channel to reset. Repositioning triangle B and repositioning triangle C are arranged above the clearance passage surface formed by the movable triangle to form a needle channel with the clearance passage surface after the movable triangle is raised, driving the settling plate to reset.
[0016] Preferably, the positioning triangle B and positioning triangle C are mounted on the base in a way that allows them to be raised and lowered.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: Compared with the prior art, the formation of the needle channel in this solution relies on the lifting and lowering of the movable triangle and the cooperation of the returning triangle, reducing the need for the reciprocating lateral movement of the movable returning triangle in the original movable technology solution. Therefore, under this solution, the situation of the movable returning triangle colliding with the raised triangle and blocking the needle channel due to the detachment of the connecting piece during the lateral movement of the original technology solution is effectively avoided. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of Example 1;
[0019] Figure 2 This is a rear axonometric view of Example 1;
[0020] Figure 3 This is a schematic diagram of the structure of Embodiment 1 in the reset state;
[0021] Figure 4 This is a schematic diagram of the structure of Embodiment 1 when the machine head moves to the left;
[0022] Figure 5 This is a schematic diagram of the structure of Embodiment 1 when the machine head moves to the right;
[0023] Figure 6 This is a structural schematic diagram of Example 2;
[0024] Figure 7 This is a schematic diagram of the structure of Example 3;
[0025] Figure 8 This is a structural schematic diagram of Example 4.
[0026] Reference numerals: 1. Base; 2. Movable triangle; 21. Movable triangle A; 22. Movable triangle B; 23. Movable triangle C; 24. Movable triangle D; 25. Movable triangle E; 26. Movable triangle F; 3. Returning triangle; 31. Returning triangle A; 32. Returning triangle B; 33. Returning triangle C; 34. Returning triangle D; 6. Control mechanism. Detailed Implementation
[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] Example 1
[0031] like Figures 1-5 The illustrated computer-controlled flat knitting machine's pressing ring control mechanism includes a base 1 on which movable triangles 2 and return triangles 3 are distributed. During knitting, the movable triangles 2 and return triangles 3 work together in a lifting and lowering manner to form a needle path for controlling the state of the sinker. It should be noted that, based on existing technology, there is a technical problem: during the formation of the needle path, a horizontally reciprocating movable return triangle is required. However, if the connecting part of this movable return triangle detaches during its lateral movement, it may stop in an abnormal position (above the raised triangle), causing the raised triangle to block the movable return triangle. In this case, the moving sinker cannot avoid it, leading to needle collision. This solution aims to improve the structure by retaining the dual working areas of the sinker while eliminating the safety hazard of the movable return triangle, thus avoiding the aforementioned problem.
[0032] Specifically, this solution includes a movable triangular part 2 and a return triangular part 3. The movable triangular part 2 is vertically movable and positioned at the lower part of the base 1, and it has an upward protrusion. The return triangular part 3 is positioned at the upper part of the base 1 and has a downward protrusion.
[0033] It should be noted that this solution drives the movable triangle to move up and down, so that its protruding part and the protruding part of the return triangle form a lifting needle path that guides the sinker to perform the pressing action before the loop is formed and before the knitting needle is reset.
[0034] Specifically, the movable triangle 2 in this solution includes a movable triangle A21 and a movable triangle B22, as shown below. Figure 1 As shown, movable triangles A21 and B22 have a symmetrical structure and can be synchronously raised and lowered under the drive of the control mechanism 6 behind the base. At the front and rear ends of movable triangles A21 and B22, an upward protrusion is provided, forming a concave portion between these two upward protrusions to create a passage surface for the sinker. It should be noted that in order to guide the sinker downwards at the required points (the node before loop formation and the node when the needle returns to its original position), the upward protrusions of movable triangles A21 and B22, with their inclined surfaces facing the incoming needle, begin at the node positions before loop formation and when the needle returns to its original position. When movable triangles A and B rise, the inclined surfaces of the protrusions flip the sinker needles that are being guided upwards, thereby driving the sinker to perform a corresponding downward pressing action around the pivot axis. It should be noted that during the weaving process, the knitting head moves to the left and to the right. Therefore, the upward protrusions of movable triangles A and B function by repeatedly switching according to the direction of the knitting head's movement.
[0035] Meanwhile, the return triangle 3 in this design includes return triangles A31, B32, C33, and D34 arranged sequentially from left to right along the base 1. Each of these triangles has a downward protrusion, forming a smooth, inclined surface that guides the pins of the settling plate to rotate downwards. It is important to note that in this design, the height of return triangles A31, B32, C33, and D34 is no higher than the height of the upward protrusion in the movable triangle 2. This ensures that even if any of the return triangles detach and fall onto the lower movable triangle during operation, their upper edges will not exceed the travel height of the settling plate pins, preventing pin collisions. It should also be noted that in the above structure, in order to adapt to the node requirements of the sinker pressure ring during knitting, the return triangles B and C in this solution are positioned at the nodes of coil formation and needle reset. That is, return triangles B and C are located above the clearance passage surface formed by the upper protrusion of movable triangle B. In this structure, when movable triangles A and B rise, return triangles B and C can form a needle path with movable triangles A and B to guide the needle feet of the sinker to reset. It should be noted that return triangles B and C in this solution are driven by the control mechanism 6 to have a lifting function. Figure 4As shown, when the knitting head moves to the left, the return cam B rises via the drive mechanism, ensuring that it avoids the sinker as it passes, keeping the sinker in a coiled state. Simultaneously, as return cam B rises, return cam C remains in its original position. When the sinker passes, the beveled surface on the needle-facing side of return cam C guides the needle foot of the sinker to sink, causing the sinker to flip back to its original position, adapting to the coiling action during knitting. It should also be noted that when the knitting head moves to the right, refer to... Figure 5 As shown, the actions of each triangle in the active triangle 2 and the return triangle 3 can be mirrored.
[0036] Example 2
[0037] Based on the above embodiments, the movable triangular part 2 in this solution can also adopt the following structure to guide the settling plate in the dual working areas. Specifically, as follows: Figure 6 As shown, the movable triangle 2 specifically includes movable triangles C23, D24, and E25, which are driven and connected to the control mechanism 6. These three movable triangles are arranged sequentially from left to right and each has an upward protrusion. It should be noted that, as... Figure 6 As shown, in this embodiment, the upward protrusions of movable triangle D24, movable triangles C and E on both sides together form two clearance surfaces for the needles of the sinker plate that are about to be reset. Furthermore, movable triangles C and E are symmetrically arranged with respect to movable triangle D, and their needle-coming side inclined surfaces also start at the node position before loop formation and when the needle is reset, so that the needles of the sinker plate can be guided accordingly to perform the sinker plate pressing action when passing through. It should be noted that the return triangle 3 in this solution can adopt the corresponding mechanism in embodiment 1.
[0038] During the weaving process, movable triangles C23, D24, and E25 in movable triangle 2 rise. Simultaneously, return triangle B32 in the return triangle rises, while the remaining return triangles A, C, and D remain in their initial state. At this time, movable triangle 2 and return triangle 3 form working areas 1 and 2 that guide the settling pressure ring of the settling plate, thereby achieving the goal of reducing the number of weaving floats.
[0039] Example 3
[0040] Based on the above embodiments, the movable triangular part 2 in this solution can also adopt the following structure to guide the settling plate in the dual working areas. Specifically, as follows: Figure 7As shown, the movable triangle 2 includes a movable triangle F26. This movable triangle F has three upward protrusions to form a clearance surface for the sinker needles during repositioning. It should be noted that above the two clearance surfaces formed by these three protrusions are correspondingly positioned return triangles B and C, so that when the movable triangle F rises, it can form a corresponding needle path guiding the sinker repositioning with return triangles B and C. It should also be noted that the beveled edges of the two protrusions on both sides of the movable triangle F26 originate at the node position through which the sinker needle passes during needle repositioning before loop formation, thus ensuring smooth guidance of the sinker downwards at this node to achieve loop pressing.
[0041] It should also be noted that in this embodiment, the return triangle 3 can also adopt the corresponding structure in embodiment 1 to adapt to the various movements of the movable triangle.
[0042] Example 4
[0043] Additionally, it should be noted that when pressing the coil, it is easy to over-press and break the coil. Therefore, this solution makes the following optimizations. Specifically, in this solution, each return triangle of the return triangle section 3 is fixedly connected to the base 1. Specifically, return triangles A, B, C, and D are all fixedly connected to the base. Return triangles B / C, which originally rise during coiling, will be in their initial state. At this time, return triangles B / C and the lower raised movable triangle section will form a return channel to slightly release the coil and prevent it from breaking.
[0044] In addition, it should be noted that the above structure is adapted to the structure of the movable triangular part 2 in embodiments 1 to 3.
[0045] Working principle: During knitting, the control mechanism 6 drives the return triangle 3 and each return triangle in the movable triangle to rise and fall, forming a needle path that can guide the sinker to perform the pressing action. The working area 1 and working area 2 where the needle path is located are the yarn looping and needle reset areas, thus solving the problem of low reliability of the existing pressing control mechanism.
[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A control mechanism for pressing rings on a computerized flat knitting machine, characterized in that: include Matrix (1); The movable triangular part (2) is mounted on the base (1) and can be raised and lowered. The movable triangular part (2) has an upward protrusion. The return triangle (3) is disposed on the base (1), and the return triangle (3) has a downward protrusion; The movable triangle (2) moves up and down to cooperate with the return triangle (3) to form a needle path that can drive the sinker to flip down before the yarn is looped and when the knitting needle is reset to press the yarn.
2. The computer flat knitting machine pressing ring control mechanism as described in claim 1, characterized in that: The movable triangle (2) includes movable triangle A (21) and movable triangle B (22). Movable triangle A (21) and movable triangle B (22) are symmetrically arranged. Movable triangle A (21) and movable triangle B (22) have upward protrusions on both sides to form a clearance passage surface for the reset sinker. The upward protrusion of the needle-coming side slope starts at the position corresponding to the needle reset before looping.
3. The computer flat knitting machine pressing ring control mechanism as described in claim 1, characterized in that: The movable triangle (2) includes movable triangle C (23), movable triangle D (24), and movable triangle E (25). Movable triangles C (23), D (24), and E (25) have upward protrusions. The upward protrusion of movable triangle D (24) and the upward protrusions of movable triangles C (23) and E (25) on both sides form the avoidance passage surface of the reset sinker. The needle-coming side oblique edge of the upward protrusion of movable triangles C (23) and E (25) starts at the position corresponding to the needle reset before loop formation.
4. The computer flat knitting machine pressing ring control mechanism as described in claim 1, characterized in that: The movable triangle (2) includes a movable triangle F (26), which has three upward protrusions to form a clearance passage surface for the reset sinker. The oblique sides of the protrusions on both sides of the movable triangle F (26) start at the position corresponding to the needle reset before looping.
5. A computerized flat knitting machine pressing control mechanism as described in any one of claims 2 to 4, characterized in that: The repositioning triangle (3) includes repositioning triangle A (31), repositioning triangle B (32), repositioning triangle C (33), and repositioning triangle D (34). The height of repositioning triangle A (31), repositioning triangle B (32), repositioning triangle C (33), and repositioning triangle D (34) is not higher than the protrusion height of the movable triangle (2). Repositioning triangle A (31), repositioning triangle B (32), repositioning triangle C (33), and repositioning triangle D (34) have downward protrusions. Repositioning triangle A (31) and repositioning triangle D (34) are located on both sides of the movable triangle (2) to guide the sinking plate entering and exiting the needle channel to reset. Repositioning triangle B (32) and repositioning triangle C (33) are set above the clearance passage surface formed by the movable triangle (2) so that after the movable triangle (2) is raised, it forms a needle channel with the clearance passage surface to drive the sinking plate to reset.
6. The computer flat knitting machine pressing ring control mechanism as described in claim 5, characterized in that: The repositioning triangles B (32) and C (33) are mounted on the base (1) in a height-reducing manner.