A sinker control device for a flat knitting machine
The sinker control device driven by the base and control mechanism solves the problem of unstable operation of floating yarn and sinker in flat knitting machines, and realizes synchronous control of sinker during loop formation, loop transfer, needle connection and needle flipping, thereby improving knitting quality and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGXIANG QIANG LONG MASCH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-08-04
AI Technical Summary
In existing flat knitting machines, the yarn is easily affected by external factors during loop formation or transfer, leading to floating yarn and affecting the knitting quality. In addition, the coordination problem of the drive mechanism causes the sinker to operate unstably.
The settling plate control device, which combines the base and control mechanism, drives the triangular mechanism through the control board and rack and pinion system to achieve synchronous control of the settling plate during the forming, moving, needle connection and needle flipping processes, thereby reducing the space occupied by the machine head and improving stability.
It effectively reduces the generation of floating yarn, improves weaving quality and equipment stability, and enhances the synchronization and efficiency of settling plate control.
Smart Images
Figure CN224591142U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a control device for computerized flat knitting machines, and more particularly to a sinker control device for flat knitting machines. 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 patent number 202210161551.0, a needle pusher triangle system suitable for stable needle insertion, has disclosed a technical solution that can solve the above-mentioned problems. However, the content disclosed in the specification "see..." Figure 1 , Figure 2 This embodiment includes a mother plate 6 with four parallel elongated slots 61. The front of the mother plate is equipped with four pusher triangles: main pusher triangles 1 and 3, and auxiliary pusher triangles 2 and 4. The back of the mother plate is equipped with a push rod as a drive mechanism, which passes through the elongated slots 61 and connects to the pusher triangles, independently driving the four pusher triangles to move up and down along the slots. It can be seen that the four pusher triangles in the above structure are independently driven, meaning the coordination of the four triangles depends on the adjustment of the drive mechanism. Therefore, during operation, if the coordination of the drive mechanism driving one of the triangles fails, it will lead to problems with the coordination between the sinker and the knitting needles, affecting the weaving quality of the fabric.
[0004] Therefore, it is clearly necessary to propose a settling plate control device that can improve the rate of floating yarn generation during the weaving process while ensuring stability. Utility Model Content
[0005] The purpose of this invention is to provide a sinker control device for a flat knitting machine, which can reduce the rate of floating yarn during the knitting process while ensuring the stability of the equipment operation.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A sinker control device for a flat knitting machine, comprising:
[0008] The base has several vertical and horizontal grooves to constrain the movement direction of each triangle in the triangular mechanism.
[0009] The triangular mechanism includes a return triangle, a movable return triangle, a middle return triangle, a left pusher triangle assembly, and a right pusher triangle assembly. The return triangle and the middle return triangle are fixedly connected to the base. The movable return triangle slides in the horizontal groove. The left pusher triangle assembly and the right pusher triangle assembly slide in the vertical groove.
[0010] The control mechanism, connected to the triangular mechanism, controls the horizontal movement of the movable return triangle in the triangular mechanism when the machine head moves left or right, and simultaneously pushes the left pusher triangle assembly or the right pusher triangle assembly to move vertically, forming a needle path that drives the sinker plate to perform the pressing action when forming, moving, receiving, and flipping the needle.
[0011] Preferably, the control mechanism includes a control plate and a control component disposed on the rear side of the substrate. The control component is drivenly connected to the control plate to control the control plate to move left and right relative to the substrate. The movable return triangle is fixedly connected to the control plate. The control plate is provided with a control groove, which has two lifting groove sections. When the control plate moves left or right relative to the substrate, it is vertically lifted by the left or right push pin triangle component of the control groove section, and forms a needle path with the return triangle, the movable return triangle, and the middle return triangle to guide the settling plate to make a pressing ring action.
[0012] Preferably, the control component includes a rack connected to the control panel, the rack meshing with a gear.
[0013] Preferably, the left pusher triangle assembly includes a left pusher triangle A and a left pusher triangle B. After the control plate moves to the right relative to the substrate, the left pusher triangle A is raised in a controlled manner to form a needle path that drives the sinking piece to sink during loop formation and loop transfer. After the control plate moves to the right relative to the substrate, the left pusher triangle B is raised in a controlled manner to form a needle path that drives the sinking piece to sink during needle flipping and needle connection. The right pusher triangle assembly includes a right pusher triangle A and a right pusher triangle B. After the control plate moves to the left relative to the substrate, the right pusher triangle A is raised in a controlled manner to form a needle path that drives the sinking piece to sink during loop formation and loop transfer. After the control plate moves to the left relative to the substrate, the right pusher triangle B is raised in a controlled manner to form a needle path that drives the sinking piece to sink during needle flipping and needle connection.
[0014] Preferably, one end of each of the left pusher triangle A, left pusher triangle B, right pusher triangle A, and right pusher triangle B located in the control groove is connected to a bearing that slides in cooperation with the control groove.
[0015] Compared with the prior art, the beneficial effects of this utility model are: when the machine head moves to the left or right, this solution can realize the synchronous formation of the sinker in the loop formation / loop shifting and needle receiving / flipping control needle path through a set of control mechanisms. This not only improves the formation efficiency of the needle path, but also effectively reduces the number of control mechanisms in the machine head, saving the limited space of the machine head while improving the stability of the sinker control. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is an exploded view of the present invention from the main perspective;
[0018] Figure 3 This is an exploded view of the present invention from a rear-view perspective;
[0019] Figure 4 This is a comparison diagram of the before and after states of this utility model when it is in the zero position.
[0020] Figure 5 This is a comparison diagram of the front and rear states of this utility model when the machine head moves to the left;
[0021] Figure 6 This is a comparison diagram of the front and rear states of this utility model when the machine head moves to the left.
[0022] Reference numerals: 1. Base; 11. Horizontal groove; 12. Vertical groove; 2. Triangular mechanism; 21. Returning triangle; 22. Movable returning triangle; 23. Middle returning triangle; 24. Left pusher triangle assembly; 241. Left pusher triangle A; 242. Left pusher triangle B; 25. Right pusher triangle assembly; 251. Right pusher triangle A; 252. Right pusher triangle B; 3. Control mechanism; 31. Control board; 311. Control groove; 311a. Lifting groove section; 32. Control component; 321. Rack; 322. Gear; 323. Motor; 33. Bearing. Detailed Implementation
[0023] 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.
[0024] 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.
[0025] 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.
[0026] like Figures 1-6 The sinker control device for a flat knitting machine shown includes a base 1, on which a plurality of vertical grooves 12 and horizontal grooves 11 are provided to constrain the movement direction of each triangle in the triangular mechanism 2.
[0027] The system also includes a triangular mechanism 2, comprising a return triangle 21 that drives the settling plate back to its zero position, a movable return triangle 22, and a middle return triangle 23, as well as a left pusher triangle assembly 24 and a right pusher triangle assembly 25 that drive the settling plate to perform a pressing action. The return triangle 21 is fixedly installed at both ends of the base to drive the settling plate back into position when the machine head moves left or right. The middle return triangle is located in the middle of the base 1, serving as a transition between the two symmetrically arranged triangular mechanisms. The movable return triangle 22 slides in the transverse groove 11 of the base and is fixedly connected to the control mechanism 3 located at the rear of the base 1. Driven by the control mechanism, it moves to the corresponding left / right pusher triangle assembly when the machine head moves left or right, forming a needle path with the raised left and right pusher triangle assemblies to control the rise and fall of the settling plate. It is important to understand that in this design, the left pusher cam assembly 24 and the right pusher cam assembly 25 can slide up and down through the vertical groove 12 and then be driven and connected to the control mechanism 3 located on the rear side of the base 1. The movable return cam 22, the left pusher cam assembly 24, and the right pusher cam assembly 25 in the aforementioned cam mechanism are driven and connected to the control mechanism, and under the action of the drive mechanism, they complete synchronous movements to control the sinker plate to perform the pressing action during loop formation, loop transfer, needle insertion, and needle flipping. It is also important to understand that in the cam mechanism 2 of this design, the operation of the movable return cam 22, the left pusher cam assembly 24, and the right pusher cam assembly 25 is integrated into a set of control mechanisms to achieve synchronous movements of the three, ensuring consistency of movements during knitting and avoiding knitting problems caused by individual cam deviations.
[0028] It should be noted that in the above embodiments, there are various structures in which the control mechanism 3 drives the various triangles in the triangular mechanism 3 to make coordinated movements. In this solution, in order to minimize the space occupied in the knitting head and avoid the use of multiple power drive components, and to ensure the consistency of the control of the sinker action during knitting, this solution achieves unified control through a control groove 311 set on the control plate 31. Specifically, the control mechanism 3 includes a control plate 31 set on the rear side of the base 1 and a control component 32 connected to the control plate 31 to drive the control plate to move relative to the base 1 to the left and right. Among them, a control groove 311 is opened on the control plate 31. The left push needle triangle component 24 and the right push needle triangle component in the triangular mechanism 2 slide through the vertical groove 12 on the base 1 and extend into the control groove. It should be noted that the control groove extends horizontally as a whole, and its trajectory length is the length of a complete set of knitting actions completed by the knitting needle during the knitting process. At the control groove corresponding to the positions where the knitting needles form loops, turn loops, and attach and turn needles, there is an upwardly arched lifting groove section 311a. When the control plate 31 moves left or right relative to the base 1, the left and right push needle triangle components located in the control groove are guided and rise along the guide direction of the vertical groove when passing through the lifting groove section. At this time, the upper surface of the left / right push needle triangle components forms a guide surface perpendicular to the base 1. This guide surface, together with the lower surfaces of the other triangles in the triangle mechanism (the returning triangle 21, the movable returning triangle 22, and the intermediate returning triangle 23), forms a needle path that constrains the movement of the sinker. It should be noted that in the above needle path, after the left / right push needle triangle components rise, they form working areas 1 and 2 (see...) that guide the sinker to turn and press the loop. Figure 5 , Figure 6 The return triangle 21 and the middle return triangle 23 guide the settling plate to reset. As for the movable return triangle 22, while following the movement of the control plate 31, it moves laterally towards the raised left and right push needle triangles so that after the settling plate moves out of the working areas 1 and 2, it can be guided by the movable return triangle to reset, ensuring that the settling plate will not interfere with the other knitting actions.
[0029] It should be noted that in the above embodiment, the control component 32 specifically includes a rack 321, which is fixedly connected to the control plate 31 by bolts. It also includes a gear 322, which meshes with the rack. When the gear is connected to a motor, the rotation of the motor drives the gear to rotate, thereby causing the control plate, which is fixedly connected to the rack, to move left and right relative to the base 1. It should be understood that as the control plate moves left and right, the control slot on the control plate also moves. The lifting slot section 311a in the control slot then moves to below the corresponding left push pin triangle assembly 24 and right push pin triangle assembly 25, lifting the left / right push pin triangle assemblies, thereby driving the settling plate to settle and perform the pressing ring action. As can be seen from the above scheme, only one set of power devices is needed to drive each triangle in the triangular mechanism and guide them to uniformly complete the corresponding commands, meeting the reliability requirements for driving the settling plate to complete complex actions.
[0030] It should also be noted that the left pusher triangle assembly 24 in this scheme includes left pusher triangle A241 and left pusher triangle B242. Left pusher triangle A241 rises after the control plate 31 moves to the right relative to the substrate 1, and is lifted by the lifting groove section 311a in the control groove 311. This rising posture causes its upper edge to form a guide surface perpendicular to the surface of the substrate 1. This guide surface guides the settling plate to flip and generate a settling pressure ring action when the settling plate passes through. It should be understood that the guide surface formed by left pusher triangle A, when sandwiched between the lower edges of its corresponding return triangle and movable return triangle, forms a needle path that guides the running trajectory of the settling plate during the forming and flipping process. After the control plate 31 moves to the right relative to the substrate, the left pusher triangle B242 is lifted by the lifting groove section 311a in the control groove 311. This lifting posture causes its upper edge to form a guide surface perpendicular to the surface of the substrate 1. When the sinker passes through, this guide surface guides the sinker to flip and perform a sinking and pressing action. It should be noted that the guide surface formed by the left pusher triangle B, together with the lower edges of its corresponding return triangle, movable return triangle, and middle return triangle, forms a needle path that guides the sinker's trajectory during needle insertion and needle flipping. By combining the above two needle paths, a complete needle path can be formed that can stably control the sinker's pressing action during loop formation, loop flipping, and needle insertion and needle flipping during knitting.
[0031] Additionally, it should be noted that in this design, each movable triangle in the triangular mechanism 2—the movable return triangle, left pusher triangle A, left pusher triangle B, right pusher triangle A, and right pusher triangle B—has a bearing 33 fitted onto its portion extending into the control groove. This bearing slides along the upper and lower edges of the control groove, so that when the triangle sliding becomes obstructed, the rotation of the bearing can improve the smoothness of the triangle sliding.
[0032] Working principle: During the knitting process on a flat knitting machine, following the movement of the knitting needles, the sinker in this design is also driven by the control device to perform a corresponding sinking and pressing action, thereby ensuring the knitting quality of the fabric. Specifically, for example... Figure 4 As shown, the control panel 31 is in the zero position. At this time, none of the triangles in each triangular mechanism are activated. After the settling plate is reset by the action of the return triangle 21, it does not activate.
[0033] Next, as Figure 5 As shown, when the knitting head moves to the left, the control plate 31 moves to the right, causing the left push needle triangles A241 and B242 to move upwards. The movable return triangle 22 moves to the right synchronously with the control plate 31, approaching the left push needle triangle A241. The sinker is first returned to its position by the return triangle 21. During loop formation or transfer, when the needle enters the rising stage, the sinker is pushed into working area 1 by the left push needle triangle 241 to perform the loop pressing action. After the needle completes loop formation or transfer and is in the retracted state, the sinker is pushed back to its position by the movable return triangle 22, causing it to return to its position and disengage from the loop, completing the loop formation or transfer. After loop formation or transfer is completed, the needle is in a reset state to prepare for entering the next system. However, during reset, the phenomenon of floating loops is prone to occur. Therefore, when the needle resets, the sinker is pushed into working area 2 by the left push needle triangle B242, causing it to perform the loop pressing action again to prevent floating loops. After the knitting needles are reset, the sinker is moved into position by the middle return triangle 23.
[0034] It should be noted that the rightward movement of the machine head in this scheme is a mirror image of the leftward movement of the machine head, so it will not be elaborated further.
[0035] 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 sinker control device for a flat knitting machine, characterized in that: include The base (1) has several vertical grooves (12) and horizontal grooves (11) to constrain the movement direction of each triangle in the triangular mechanism (2); The triangular mechanism (2) includes a return triangle (21), a movable return triangle (22), a middle return triangle (23), a left pusher triangle assembly (24), and a right pusher triangle assembly (25). The return triangle (21) and the middle return triangle (23) are fixedly connected to the base (1). The movable return triangle (22) is slidably disposed in the transverse groove (11). The left pusher triangle assembly (24) and the right pusher triangle assembly (25) are slidably disposed in the vertical groove (12). The control mechanism (3) is connected to the triangular mechanism (2) for driving. When the machine head moves to the left or right, it controls the moving return triangle (22) in the triangular mechanism (2) to move horizontally, and at the same time pushes the left push needle triangle assembly (24) or the right push needle triangle assembly (25) to move vertically, forming a needle path that drives the sinker to make a pressing action when forming, moving, receiving and turning the needle.
2. The sinker control device for a flat knitting machine as described in claim 1, characterized in that: The control mechanism (3) includes a control plate (31) and a control component (32) located on the rear side of the base (1). The control component (32) is driven to connect with the control plate (31) to control the control plate (31) to move left and right relative to the base (1). The movable return triangle (22) is fixedly connected to the control plate (31). The control plate (31) has a control groove (311) with two lifting groove sections (311a). When the control plate (31) moves left or right relative to the base (1), it is vertically lifted by the left pusher triangle component (24) or the right pusher triangle component (25) of the control groove section (311a), and forms a needle path with the return triangle (21), the movable return triangle (22), and the middle return triangle (23) to guide the settling plate to make a pressing ring action.
3. The sinker control device for a flat knitting machine as described in claim 2, characterized in that: The control component (32) includes a rack (321) connected to the control board (31), the rack (321) meshing with a connecting gear (322).
4. The sinker control device for a flat knitting machine as described in claim 3, characterized in that: The left pusher triangle assembly (24) includes a left pusher triangle A (241) and a left pusher triangle B (242). After the control plate (31) moves to the right relative to the base (1), the left pusher triangle A (241) is raised in a controlled manner to form a needle channel that drives the sinker plate to sink during the forming and moving of the loop. After the control plate (31) moves to the right relative to the base (1), the left pusher triangle B (242) is raised in a controlled manner to form a needle channel that drives the sinker plate to sink during the turning and receiving of the needle. The right pusher triangle assembly (25) includes a right pusher triangle A (251) and a right pusher triangle B (252). After the control plate (31) of the right pusher triangle A (251) moves to the left relative to the base (1), it is raised in a controlled manner to form a needle channel that drives the sinking plate to sink during the forming and moving of the loop. After the control plate (31) of the right pusher triangle B (252) moves to the left relative to the base (1), it is raised in a controlled manner to form a needle channel that drives the sinking plate to sink during the turning and receiving of the needle.
5. The sinker control device for a flat knitting machine as described in claim 4, characterized in that: The left pusher triangle A (241), left pusher triangle B (242), right pusher triangle A (251), and right pusher triangle B (252) are all connected to a bearing (33) that slides in the control groove (311) at one end.