Circular knitting machine with automatic yarn changing function

Abstract

The circular knitting machine with the automatic yarn changing function comprises a yarn frame, movable plates are symmetrically connected to the lower surface of the yarn frame, the ends, away from the yarn frame, of the movable plates are slidably connected into a main sliding groove formed in a fixing column, an electric rod is fixedly connected to the bottom of the main sliding groove, and a telescopic rod of the electric rod is fixedly connected with the movable plates; the upper surface of the yarn frame is symmetrically connected with the yarn feeding assembly, the yarn feeding assembly is composed of a top plate, a vertical plate, a limiting plate and an auxiliary positioning column, the upper surface of the yarn frame is fixedly connected with the vertical plate and the auxiliary positioning column, the upper end of the vertical plate is fixedly connected with the top plate, the lower surface of the top plate is symmetrically connected with the vertical plate, and the position, opposite to the auxiliary positioning column, of the lower surface of the top plate is correspondingly connected with the main positioning column. Through the cooperation of the top plate, the vertical plate, the side plate, the main positioning column, the auxiliary positioning column and the limiting plate, the circular knitting machine can carry out yarn replacement conveniently, and the yarn replacement efficiency is improved in an auxiliary mode.

Description

Technical Field

[0001] This utility model relates to the field of circular knitting machines, specifically to a circular knitting machine with an automatic yarn changing function. Background Technology

[0002] Single-jersey circular knitting machines, also known as circular knitting weft machines, are mainly used to knit and produce various types of fabrics. They are characterized by the ability to change colors. Existing single-jersey circular knitting machines have a variety of functions, achieving diversification. However, most existing single-jersey circular knitting machines are one-piece designs. When the yarn runs out, it is usually necessary to replace each yarn individually and then wind the yarn again. However, since the yarn racks are usually quite high, the operation is very troublesome during replacement, and there is no way to adjust them, which reduces ease of use and practicality.

[0003] A search revealed a single-sided circular knitting machine (publication number: CN112323237A) in the prior art, which describes that "a platform is fixedly installed at the top of the machine body, and a yarn bobbin is connected to the top of the platform through an adjustment mechanism. A transmission mechanism is provided inside the machine body, and a motor is provided at the bottom right side of the transmission mechanism. A control mechanism is provided on the right side of the transmission mechanism." This circular knitting machine, through the cooperation of the adjustment mechanism, transmission mechanism, and control mechanism, achieves a tight structural fit, facilitating yarn replacement and tension adjustment simultaneously when adjusting height. The operation is simple and convenient, improving usability and practicality. However, in the actual yarn replacement process, the worker needs to hold the new yarn in one hand and remove the old yarn with the other, increasing the difficulty of yarn replacement and reducing efficiency. Furthermore, when multiple yarns need to be replaced, the worker spends time repeatedly carrying new yarns, further reducing yarn replacement efficiency. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, a circular knitting machine with automatic yarn changing function is provided to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, a circular knitting machine with automatic yarn changing function is provided, comprising: a yarn frame; a platform fixedly connected to the upper end of the circular knitting machine body; a fixed plate fixedly connected to the upper surface of the platform via a fixed post; a cylinder assembly fixedly connected to the upper surface of the fixed plate; symmetrically connected movable plates to the lower surface of the yarn frame; one end of the movable plate away from the yarn frame slidably connected to a main groove opened in the fixed post; an electric rod fixedly connected to the bottom of the main groove; a telescopic rod of the electric rod fixedly connected to the movable plate; symmetrically connected yarn feeding assemblies to the upper surface of the yarn frame; the yarn feeding assembly consists of a top plate, a vertical plate, a limiting plate, and a secondary positioning post; the vertical plate and the secondary positioning post are fixedly connected to the upper surface of the yarn frame respectively; the top plate is fixedly connected to the upper end of the vertical plate; the vertical plate is symmetrically connected to the lower surface of the top plate; the position of the lower surface of the top plate relative to the secondary positioning post corresponds to the position of the main positioning post; a limiting groove is opened on the side of the vertical plate; a limiting plate is slidably connected in the limiting groove; an adsorption plate and a base plate are fixedly connected to both ends of the limiting plate respectively; and an electromagnet is connected to the outer side of the vertical plate relative to the position of the base plate.

[0006] Preferably, four sets of fixed posts are fixedly connected around the edge of the upper surface of the platform at equal intervals in the circumferential direction, and all four sets of fixed posts are rectangular in structure. At the same time, the end face of the fixed posts is U-shaped, and a set of electric rods are fixedly connected to each of the two sets of fixed posts.

[0007] Preferably, the yarn frame has a circular structure, and a movable plate is connected to the lower surface of the yarn frame relative to the position of the fixed column. The movable plate has an L-shaped structure, and the end of the movable plate away from the yarn frame is adapted to the size of the main slide groove opened on the fixed column. At the same time, two sets of positioning grooves are symmetrically opened on both sides of the main slide groove, and both sets of positioning grooves have a long strip structure. Positioning blocks are connected to the positions of the two sides of the movable plate relative to the positioning grooves.

[0008] Preferably, the top plate has a circular structure, and the two sets of vertical plates fixedly connected to the lower surface of the top plate have a rectangular structure, and the end face of the vertical plate has a fan-shaped annular structure. The two sets of limiting grooves opened in the middle of one set of vertical plates have a square structure, and the dimensions of the limiting grooves and the limiting plates are compatible.

[0009] Preferably, two sets of side plates are symmetrically connected to the upper end of the upright plate. Both sets of side plates are rectangular in shape, and the end face of the side plates is a fan-shaped ring structure. The length of the side plates is less than the length of the upright plate, while the length of the main positioning column is equal to the length of the side plates.

[0010] Preferably, both the main positioning post and the secondary positioning post are cylindrical, while the upper end of the secondary positioning post is frustum-shaped, and the lower end of the secondary positioning post is movably connected to an auxiliary ring via a bearing. The auxiliary ring is annular, and the axes of the main positioning post and the secondary positioning post are collinear.

[0011] Preferably, the end of the limiting plate near the secondary positioning post is fixedly connected to the adsorption plate, and the other end of the limiting plate is fixedly connected to the substrate. The limiting plate, the adsorption plate and the substrate are combined to form a U-shaped structure, and the pull ring fixedly connected to the outer side of the substrate has a C-shaped structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: through the cooperation of the upright plate, side plate, top plate, main positioning column, secondary positioning column and limiting plate, the yarn feeding assembly of the large circular knitting machine can store multiple sets of yarn bobbins at the same time. Therefore, during the yarn replacement process, the worker does not need to hold the new yarn separately, thereby helping to reduce the difficulty of the worker when replacing the yarn. Furthermore, when the old yarn is taken out, the new yarn stored in the yarn feeding assembly will be automatically filled under the action of gravity, thereby helping to improve the yarn replacement efficiency. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0014] Figure 2 This is a top view of the yarn frame and fixing plate according to an embodiment of the present utility model.

[0015] Figure 3 This is a front view schematic diagram of the yarn feeding assembly according to an embodiment of the present utility model.

[0016] Figure 4 This is a side view of the yarn feeding assembly according to an embodiment of the present invention.

[0017] In the diagram: 1. Circular knitting machine body; 2. Table; 3. Electric rod; 4. Fixed column; 5. Fixed plate; 6. Moving plate; 7. Yarn frame; 8. Yarn feeding assembly; 9. Needle cylinder assembly; 10. Top plate; 11. Vertical plate; 12. Side plate; 13. Main positioning column; 14. Secondary positioning column; 15. Auxiliary ring; 16. Limiting plate; 17. Adsorption plate; 18. Electromagnet; 19. Base plate. Detailed Implementation

[0018] Reference Figures 1 to 4As shown, this utility model provides a circular knitting machine with automatic yarn changing function, including: a yarn frame 7; a platform 2 fixedly connected to the upper end of the machine body 1; a fixed plate 5 fixedly connected to the upper surface of the platform 2 via a fixed post 4; a cylinder assembly 9 fixedly connected to the upper surface of the fixed plate 5; a movable plate 6 symmetrically connected to the lower surface of the yarn frame 7; one end of the movable plate 6 away from the yarn frame 7 slidably connected to a main groove opened in the fixed post 4; an electric rod 3 fixedly connected to the bottom of the main groove; the telescopic rod of the electric rod 3 fixedly connected to the movable plate 6; and yarn changing assemblies symmetrically connected to the upper surface of the yarn frame 7. The component consists of a top plate 10, a vertical plate 11, a limiting plate 16, and a secondary positioning post 14. The upper surface of the yarn frame 7 is fixedly connected to the vertical plate 11 and the secondary positioning post 14, respectively. The upper end of the vertical plate 11 is fixedly connected to the top plate 10, and the lower surface of the top plate 10 is symmetrically connected to the vertical plate 11. The position of the lower surface of the top plate 10 relative to the secondary positioning post 14 corresponds to the position of the main positioning post 13. A limiting groove is opened on the side of the vertical plate 11, and the limiting plate 16 is slidably connected in the limiting groove. The two ends of the limiting plate 16 are fixedly connected to the adsorption plate 17 and the base plate 19, respectively. The position of the outer side of the vertical plate 11 relative to the base plate 19 corresponds to the position of the electromagnet 18.

[0019] In this embodiment, when the yarn in the yarn feeding assembly 8 of the circular knitting machine runs out or needs to be replaced, the worker first activates the switch of the electric lever 3. The telescopic rod of the electric lever 3 drives the yarn frame 7 and the yarn feeding assembly 8 to move synchronously to a suitable height via the moving plate 6. The worker then turns off the switch of the electromagnet 18, thereby releasing the fixed connection between the electromagnet 18 and the base plate 19. The worker uses one hand to restrict the two sets of new yarn bobbins fitted at the lower end of the main positioning post 13, and the other hand uses the pull ring to move the fixedly connected base plate 19, limiting plate 16, and suction plate 17 without moving. Subsequently, the two sets of limiting plates 16 can simultaneously detach from the old yarn bobbins and the new yarn. The surface of the yarn spool allows the worker to remove the old yarn spool with one hand and release the new yarn spool at the bottom with the other hand, so that the new yarn spool can automatically fall under the action of gravity and be loaded onto the secondary positioning post 14. Then, by pulling the ring, the base plate 19, the limiting plate 16 and the adsorption plate 17 are reset, and the switch of the electromagnet 18 is turned on. The electromagnet 18 adsorbs and fixes the base plate 19, and the reset of the limiting plate 16 can effectively limit the movement range of the yarn spools sleeved on the main positioning post 13 and the secondary positioning post 14, thereby realizing the automatic yarn changing process, reducing the difficulty of yarn changing for workers and improving the efficiency of yarn changing.

[0020] Meanwhile, the working principle of the circular knitting machine body 1 and the connection structure between the various components in this application are all existing mature technologies, which have been fully disclosed in a single-sided circular knitting machine (publication number: CN112323237A).

[0021] In a preferred embodiment, four sets of fixed posts 4 are fixedly connected around the edge of the upper surface of the platform 2 at equal intervals in the circumferential direction. All four sets of fixed posts 4 are rectangular in structure, and the end face of the fixed posts 4 is U-shaped. A set of electric rods 3 are fixedly connected to each of the two sets of fixed posts 4.

[0022] In this embodiment, as Figure 1 and Figure 2 The setting of the fixed column 4 can help enhance the stability of the fixed plate 5, thereby ensuring the stability of the yarn frame 7 when it moves. The setting of the electric rod 3 enables the yarn frame 7 to automatically adjust its height, which also makes it easier for workers to change yarn.

[0023] In a preferred embodiment, the yarn frame 7 has a circular structure. The lower surface of the yarn frame 7 is connected to the movable plate 6 relative to the fixed column 4. The movable plate 6 has an L-shaped structure, and the end of the movable plate 6 away from the yarn frame 7 is matched with the size of the main slide groove opened on the fixed column 4. At the same time, two sets of positioning grooves are symmetrically opened on both sides of the main slide groove. Both sets of positioning grooves have a long strip structure. The positions of the two sides of the movable plate 6 relative to the positioning grooves are connected to positioning blocks.

[0024] In this embodiment, as Figure 1 and Figure 2 The dimensions of the positioning block and the positioning groove are matched, which helps to enhance the stability of the moving plate 6 and the yarn frame 7 when they move, reduces the probability of the yarn frame 7 shaking or tilting unexpectedly during movement and suspension, and ensures that the circular knitting machine can operate normally.

[0025] In a preferred embodiment, the top plate 10 has a circular structure, and the two sets of vertical plates 11 fixedly connected to the lower surface of the top plate 10 are both rectangular structures, and the end face of the vertical plate 11 has a fan-shaped structure. The two sets of limiting grooves opened in the middle of one set of vertical plates 11 are both square structures, and the dimensions of the limiting grooves and the limiting plate 16 are compatible.

[0026] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The dimensions of the limiting groove and the limiting plate 16 are matched, which can help enhance the stability of the limiting plate 16 when it moves, avoid the problem of the limiting plate 16 tilting or shaking during the movement, and thus help enhance the limiting effect of the limiting plate 16 on the yarn bobbin.

[0027] In a preferred embodiment, two sets of side plates 12 are symmetrically connected to the upper sides of the upright plate 11. Both sets of side plates 12 are rectangular in shape, and the end face of the side plate 12 is a fan-shaped structure. The length of the side plate 12 is less than the length of the upright plate 11, while the length of the main positioning column 13 is equal to the length of the side plate 12.

[0028] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The side plate 12 restricts the movement direction of the yarn bobbin fitted to the main positioning post 13, ensuring that the yarn bobbin fitted to the main positioning post 13 can slide smoothly and fit onto the surface of the secondary positioning post 14. The length of the side plate 12 facilitates the removal of the old yarn bobbin fitted to the secondary positioning post 14.

[0029] In a preferred embodiment, both the main positioning post 13 and the auxiliary positioning post 14 are cylindrical, while the upper end of the auxiliary positioning post 14 is frustum-shaped, and the lower end of the auxiliary positioning post 14 is movably connected to the auxiliary ring 15 through a bearing. The auxiliary ring 15 is annular, and the axes of the main positioning post 13 and the auxiliary positioning post 14 are collinear.

[0030] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The axes of the main positioning post 13 and the auxiliary positioning post 14 are collinear, which helps to enhance the smoothness of the yarn bobbin transition and ensures that the yarn bobbin can automatically fit onto the surface of the auxiliary positioning post 14 under the action of gravity. Moreover, the upper end of the auxiliary positioning post 14 has a frustum-shaped structure, which can effectively improve the accuracy of the auxiliary positioning post 14 fitting onto the yarn bobbin.

[0031] In a preferred embodiment, the end of the limiting plate 16 near the secondary positioning post 14 is fixedly connected to the adsorption plate 17, and the other end of the limiting plate 16 is fixedly connected to the substrate 19. The limiting plate 16, the adsorption plate 17 and the substrate 19 are combined to form a U-shaped structure, and the pull ring fixedly connected to the outer side of the substrate 19 has a C-shaped structure.

[0032] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The adsorption plate 17 is made of a magnetic metal plate, while the base plate 19 and the upright plate 11 are both made of stainless steel. Therefore, it can help enhance the stability of the limiting plate 16 after it is reset and moved, and prevent the limiting plate 16 from interfering with the yarn replacement process.

Claims

1. A circular knitting machine with automatic yarn changing function, comprising: The yarn frame (7) is fixedly connected to the upper end of the circular knitting machine body (1) by a platform (2), and the upper surface of the platform (2) is fixedly connected to a fixed plate (5) by a fixed column (4), and the upper surface of the fixed plate (5) is fixedly connected to a cylinder assembly (9). The yarn frame (7) is characterized in that: the lower surface of the yarn frame (7) is symmetrically connected to a movable plate (6), and the end of the movable plate (6) away from the yarn frame (7) is slidably connected to the main slide groove opened by the fixed column (4), and the bottom of the main slide groove is fixedly connected to an electric rod (3), the telescopic rod of the electric rod (3) is fixedly connected to the movable plate (6), and the upper surface of the yarn frame (7) is symmetrically connected to a yarn feeding assembly (8), and the yarn feeding assembly (8) consists of a top plate (10) and a vertical plate (11). The structure consists of a limiting plate (16) and a secondary positioning post (14). The upper surface of the yarn frame (7) is fixedly connected to the upright plate (11) and the secondary positioning post (14). The upper end of the upright plate (11) is fixedly connected to the top plate (10). The lower surface of the top plate (10) is symmetrically connected to the upright plate (11). The position of the lower surface of the top plate (10) relative to the secondary positioning post (14) is connected to the main positioning post (13). A limiting groove is opened on the side of the upright plate (11). The limiting plate (16) is slidably connected in the limiting groove. The two ends of the limiting plate (16) are fixedly connected to the adsorption plate (17) and the base plate (19). The position of the outer side of the upright plate (11) relative to the base plate (19) is connected to the electromagnet (18).

2. A circular knitting machine with automatic yarn changing function according to claim 1, characterized in that, Four sets of fixed columns (4) are fixedly connected around the edge of the upper surface of the platform (2) at equal intervals. All four sets of fixed columns (4) are rectangular in shape, and the end face of the fixed column (4) is U-shaped. A set of electric rods (3) are fixedly connected to each of the two sets of fixed columns (4).

3. A circular knitting machine with automatic yarn changing function according to claim 1, characterized in that, The yarn frame (7) has a circular structure. The lower surface of the yarn frame (7) is connected to the moving plate (6) relative to the fixed column (4). The moving plate (6) has an L-shaped structure. The end of the moving plate (6) away from the yarn frame (7) is matched with the size of the main slide groove opened on the fixed column (4). At the same time, two sets of positioning grooves are symmetrically opened on both sides of the main slide groove. Both sets of positioning grooves have a long strip structure. The positions of the two sides of the moving plate (6) relative to the positioning grooves are connected to the positioning blocks.

4. A circular knitting machine with automatic yarn changing function according to claim 1, characterized in that, The top plate (10) has a circular structure. The two sets of vertical plates (11) fixedly connected to the lower surface of the top plate (10) are both rectangular structures, and the end face of the vertical plate (11) has a fan-shaped ring structure. The two sets of limiting grooves opened in the middle of one set of vertical plates (11) are both square structures. At the same time, the size of the limiting groove and the limiting plate (16) are compatible.

5. A circular knitting machine with automatic yarn changing function according to claim 1, characterized in that, The upper end of the upright plate (11) is symmetrically connected to two sets of side plates (12). Both sets of side plates (12) are rectangular in shape, and the end face of the side plate (12) is a fan-shaped ring structure. The length of the side plate (12) is less than the length of the upright plate (11), while the length of the main positioning column (13) is equal to the length of the side plate (12).

6. A circular knitting machine with automatic yarn changing function according to claim 1, characterized in that, Both the main positioning post (13) and the secondary positioning post (14) are cylindrical, while the upper end of the secondary positioning post (14) is frustum-shaped. The lower end of the secondary positioning post (14) is connected to the auxiliary ring (15) via a bearing. The auxiliary ring (15) is annular. The axes of the main positioning post (13) and the secondary positioning post (14) are collinear.

7. A circular knitting machine with automatic yarn changing function according to claim 1, characterized in that, The limiting plate (16) is fixedly connected to the adsorption plate (17) at one end near the sub-positioning post (14), and the limiting plate (16) is fixedly connected to the substrate (19) at the other end. The limiting plate (16), adsorption plate (17) and substrate (19) are combined to form a square structure, and the pull ring fixedly connected to the outer side of the substrate (19) is in the shape of a c.

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