A bottom plate yarn feeding disc for a flat knitting machine

Abstract

This utility model discloses a yarn feeding spool for the starting plate of a flat knitting machine, belonging to the technical field of yarn feeding spools. It includes: upper and lower clamping plates rotatably mounted on a base, with the upper clamping plate positioned above the lower clamping plate and rotating synchronously with it; and two expansion plates located between the lower and upper clamping plates, respectively, at the entry and exit points of the starting plate wire. The expansion plates are partially engaged between the lower and upper clamping plates to increase the distance between them to be greater than the diameter of the starting plate wire. This utility model incorporates expansion plates between the upper and lower clamping plates that hold the starting plate wire. The thickness of the expansion plates is greater than the diameter of the wire, ensuring that the wire does not contact the upper and lower clamping plates at the entry and exit points, reducing wire wear and extending the machine's service life.

Description

Technical Field

[0001] This utility model relates to the field of flat knitting machine technology, specifically to a yarn feeding spool for the starting plate of a flat knitting machine. Background Technology

[0002] In the operation of a flat knitting machine, the yarn feeding process of the base plate is crucial, as its stability and accuracy directly affect the quality of knitted products and production efficiency. Among them, the yarn feeding spool, as the core component for realizing the conveying of steel wire, has a significant impact on the conveying effect, service life, and overall operational stability of the equipment.

[0003] In existing technologies, wire feeding reels typically use two feeding wheels to clamp the steel wire. This structure applies clamping force to the steel wire through the two feeding wheels and relies on friction to drive the wire forward. The clamping force between the two feeding wheels is often quite large, resulting in extremely high friction on the steel wire during transport. This makes the wire prone to breakage, which not only interrupts the production process and increases downtime and maintenance time and costs, but also causes defects in knitted products due to broken wires, reducing the product qualification rate.

[0004] To address the wire breakage problem caused by the aforementioned wire feeding wheel structure, the industry has improved the structure of the wire feeding disc, designing a wire feeding disc structure with two overlapping disc-shaped clamping components. This structure clamps the steel wire using the two disc-shaped clamping components, resulting in a relatively smaller clamping force compared to the wire feeding wheel structure. This reduces friction on the steel wire to a certain extent and decreases the probability of wire breakage.

[0005] Although the clamping force between the two disc-shaped clamping components is reduced, a certain clamping force still exists. When the steel wire enters or leaves the clamping area of ​​the two disc-shaped clamping components, due to the presence of the clamping force, the contact area between the steel wire and the disc-shaped clamping components will generate relatively severe friction and compression. This causes the steel wire to experience significant wear at the moment of entering or leaving the clamping area. Long-term wear will cause the diameter of the steel wire to gradually decrease and its strength to continuously decline. This not only shortens the service life of the steel wire, but may also cause the wire to break again during subsequent knitting processes, affecting the continuity and stability of production.

[0006] Therefore, this utility model provides a yarn feeding spool for the starting plate of a flat knitting machine. Utility Model Content

[0007] The purpose of this invention is to provide a yarn feeding tray for the starting plate of a flat knitting machine.

[0008] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0009] A yarn feeder for the starter plate of a flat knitting machine includes:

[0010] Base;

[0011] The lower clamping plate is rotatably mounted on the base and is connected to the drive device for transmission.

[0012] The upper clamping plate is located above the lower clamping plate and rotates synchronously with it, and there is a gap between the upper clamping plate and the lower clamping plate to clamp the bottom plate steel wire;

[0013] Two expansion plates are positioned at the points where the bottom plate steel wire enters and exits the lower clamp and the upper clamp, respectively. The expansion plates are partially inserted between the lower clamp and the upper clamp to increase the interval distance to be greater than the diameter of the bottom plate steel wire.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme, a frustum concentric with the lower clamping plate and with a diameter smaller than the lower clamping plate is provided on the top of the lower clamping plate; the upper clamping plate is fitted around the frustum.

[0015] Based on the above scheme and as a preferred embodiment of the above scheme, a detachable annular pad is provided between the lower clamping plate and the upper clamping plate. The pad is fitted over the frustum to maintain a gap between the upper clamping plate and the lower clamping plate.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme, a cover plate that is detachably connected to the lower clamping plate is provided above the upper clamping plate.

[0017] Based on the above scheme and as a preferred embodiment of the above scheme, a sealing plate with a thickness less than that of the pad is provided between the lower clamping plate and the upper clamping plate. The sealing plate is arranged around the pad and forms a wire channel with the outer wall of the pad.

[0018] Based on the above scheme and as a preferred embodiment of the above scheme, the upper clamping plate is elastic.

[0019] Based on the above scheme and as a preferred embodiment of the above scheme, the expansion plate can rotate with the upper clamping plate and the lower clamping plate.

[0020] Based on the above scheme and as a preferred embodiment of the above scheme, the base is provided with a wire feeding guide tube with a first port having a flared structure. The first end of the wire feeding guide tube is directly opposite the position between the lower clamp and the upper clamp when the steel wire of the base plate leaves, and the second end is connected to the steel wire capillary guide tube.

[0021] Based on the above scheme and as a preferred embodiment of the above scheme, the base is provided with a wire take-up and wire storage tube, which is located directly opposite the position where the steel wire of the bottom plate enters between the lower clamping plate and the upper clamping plate, and is composed of several sections spliced ​​together.

[0022] Compared with the prior art, this utility model has the following advantages and beneficial effects: In this utility model, an expansion plate is inserted between the upper and lower clamping plates that hold the bottom plate steel wire. The thickness of the expansion plate is greater than the diameter of the steel wire, so that the steel wire does not contact the upper and lower clamping plates when it enters and exits the upper and lower clamping plates, thereby reducing the wear of the steel wire and extending its service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a top view of the present invention.

[0025] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0026] Figure 4 This is a partial structural diagram of the present utility model.

[0027] In the diagram: 1. Base; 2. Lower clamping plate; 3. Upper clamping plate; 4. Expanding plate; 5. Frustum; 6. Pad; 7. Cover plate; 8. Sealing plate; 9. Wire infeed guide tube; 10. Wire take-up and storage tube. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0029] like Figures 1 to 3 As shown, a yarn feeding tray for a knitting flat knitting machine includes: a base 1, which is fixed on the knitting flat knitting machine and serves as the fixed base for the entire device.

[0030] The lower clamping plate 2 and the upper clamping plate 3 are synchronously rotatable on the base 1 and are driven by a drive device. The upper clamping plate 3 is located above the lower clamping plate 2 and there is a gap between the upper clamping plate 3 and the lower clamping plate 2 to clamp the bottom plate steel wire. The gap is equal to or slightly smaller than the diameter of the steel wire to clamp the steel wire. The rotation of the upper and lower clamping plates drives the steel wire to move forward or backward.

[0031] Specifically, in this embodiment, the outer circumferential surface of the lower clamping plate 2 has teeth that mesh with a gear rotatably mounted on the base 1. This gear is connected to a drive device fixedly mounted on the base 1, and the diameter of the gear is smaller than the diameter of the lower clamping plate 2. The drive device is a servo motor connected to a control device. Simultaneously, a frustum 5 concentric with the lower clamping plate 2 and with a smaller diameter than the lower clamping plate 2 is provided on the top of the lower clamping plate 2. The upper clamping plate 3 has a ring structure and is fitted around the frustum 5.

[0032] A detachable ring-shaped pad 6 is provided between the lower clamping plate 2 and the upper clamping plate 3. The pad 6 is fitted over the frustum 5 to maintain a gap between the upper clamping plate 3 and the lower clamping plate 2. The thickness of the pad 6 is equal to the distance between the upper and lower clamping plates, and the distance between the upper and lower clamping plates can be adjusted by replacing the pad 6.

[0033] A cover plate 7, detachably connected to the lower clamping plate 2, is provided above the upper clamping plate 3. The cover plate 7 has a circular structure and fits onto the frustum 5. The cover plate 7, upper clamping plate 3, pad 6, and lower clamping plate 2, arranged sequentially from top to bottom, are fixedly connected together and rotate synchronously. Preferably, the cover plate 7, upper clamping plate 3, pad 6, and lower clamping plate 2 are connected by bolts, and each of them has several through holes evenly distributed along the circumference. The bolts fit into the through holes to achieve a detachable fixed connection.

[0034] like Figure 3 As shown, a connecting seat is fixedly connected to the base 1. The connecting seat is located on one side of the lower clamping plate 2, and its side near the lower clamping plate 2 is arc-shaped to match the lower clamping plate 2. Two rotatable expansion plates 4 are provided on the connecting seat. The two expansion plates 4 are respectively located between the lower clamping plate 2 and the upper clamping plate 3 when the bottom plate steel wire enters and exits. Part of the expansion plates 4 are inserted between the lower clamping plate 2 and the upper clamping plate 3 to increase the gap distance to be greater than the diameter of the bottom plate steel wire. The thickness of the expansion plates 4 is slightly greater than the diameter of the bottom plate steel wire. Inserting them between the upper and lower clamping plates widens the gap between them, preventing the bottom plate steel wire from contacting the upper and lower clamping plates at that point. This reduces friction between the bottom plate steel wire entering and exiting the upper and lower clamping plates, thus extending the life of the bottom plate steel wire.

[0035] The upper clamping plate 3 is elastic to meet the elastic deformation requirements of the expansion plate 4 when it is inserted. The expansion plate 4 has a circular ring structure and is rotatably connected to the connecting seat via a bearing. It is detachable and replaceable to accommodate steel wires of different diameters.

[0036] like Figure 3 and Figure 4As shown, a sealing plate 8, slightly thinner than the pad 6, is provided between the lower clamping plate 2 and the upper clamping plate 3. The sealing plate 8 surrounds the pad 6, forming a wire channel with the outer wall of the pad 6. The sealing plate 8 is fixedly mounted on the connecting seat and is divided into two sections, located on both sides of the entry and exit points of the bottom plate wire from the upper and lower clamping plates, respectively. Interruptions are left at these two positions to allow the expansion piece 4 to be inserted between the upper and lower clamping plates. The wire channel has a circular structure. The slightly thinner sealing plate 8 prevents friction between it and the upper and lower clamping plates, reducing wear on components.

[0037] The connector is also equipped with a wire feeding guide tube 9 and a wire take-up and storage tube 10.

[0038] The wire feed guide tube 9 is positioned corresponding to the position where the wire exits the upper and lower clamps from the bottom plate. It receives and guides the wire exiting the clamps, guiding it forward to the bottom needle plate. The wire feed guide tube 9 connects with the wire capillary guide tube led out from the bottom needle plate, allowing the wire to enter directly into the capillary guide tube without manual intervention during the wire threading process, thus improving work efficiency. Conventional needle plates have very small capillary inlets, often requiring manual alignment when changing wires to ensure the wire is aligned with the capillary opening. In this embodiment, the wire feed guide tube 9 has a chamfer at the inlet to enlarge it, facilitating wire threading without the need for deliberate alignment, thereby improving maintenance efficiency.

[0039] The wire take-up and storage tube 10 is positioned corresponding to the entry point of the steel wire into the upper and lower clamps of the base plate, and is mainly used for storing the steel wire. The wire take-up and storage tube 10 is composed of several sections, which can prevent the steel wire from being unable to be pulled out when it breaks inside. When the steel wire breaks inside the wire take-up and storage tube 10, if the wire take-up and storage tube 10 is a single piece, the steel wire is inconvenient to pull out. In this embodiment, the wire take-up and storage tube 10 is composed of several sections. When the steel wire breaks inside, two adjacent sections of the wire take-up and storage tube 10 can be separated to pull out the steel wire, improving maintenance efficiency.

[0040] In this embodiment, an expansion piece 4 is provided at the position where the bottom plate steel wire enters and exits the upper and lower clamping plates, which is inserted between the upper and lower clamping plates. The thickness of the expansion piece 4 is slightly larger than the diameter of the bottom plate steel wire, which can increase the distance between the upper and lower clamping plates and the position where the bottom plate steel wire enters and exits, thereby reducing or even preventing the friction between the bottom plate steel wire and the upper and lower clamping plates when entering and exiting, so as to extend the service life of the bottom plate steel wire.

[0041] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A yarn feeding spool for the starting plate of a flat knitting machine, characterized in that, include: Base (1); The lower clamp (2) is rotatably mounted on the base (1) and is connected to the drive device for transmission. The upper clamping plate (3) is located above the lower clamping plate (2) and rotates synchronously with it, and there is a gap between the upper clamping plate (3) and the lower clamping plate (2) to clamp the bottom plate steel wire; There are two expansion plates (4), which are located between the lower clamp (2) and the upper clamp (3) respectively when the bottom plate steel wire enters and exits. The expansion plates (4) are partially inserted between the lower clamp (2) and the upper clamp (3) so that the interval distance is increased to be greater than the diameter of the bottom plate steel wire.

2. The yarn feeding spool for the starting plate of a flat knitting machine according to claim 1, characterized in that, The lower clamping plate (2) has a truncated cone (5) on its top, which is concentric with the lower clamping plate (2) and has a smaller diameter than the lower clamping plate (2); the upper clamping plate (3) is fitted around the truncated cone (5).

3. The yarn feeding spool for the starting plate of a flat knitting machine according to claim 2, characterized in that, A detachable annular pad (6) is provided between the lower clamping plate (2) and the upper clamping plate (3). The pad (6) is fitted over the frustum (5) to maintain a gap between the upper clamping plate (3) and the lower clamping plate (2).

4. The yarn feeding spool for the starting plate of a flat knitting machine according to claim 3, characterized in that, A cover plate (7) is provided above the upper clamping plate (3) and is detachably connected to the lower clamping plate (2).

5. The yarn feeding spool for the starting plate of a flat knitting machine according to claim 4, characterized in that, A sealing plate (8) with a thickness less than that of the pad (6) is provided between the lower clamping plate (2) and the upper clamping plate (3). The sealing plate (8) is arranged around the pad (6) and forms a wire channel with the outer wall of the pad (6).

6. The yarn feeding spool for the starting plate of a flat knitting machine according to claim 1, characterized in that, The upper clamp (3) is elastic.

7. The yarn feeding spool for the starting plate of a flat knitting machine according to claim 1, characterized in that, The expansion plate (4) can rotate with the upper clamping plate (3) and the lower clamping plate (2).

8. The yarn feeding spool for the starting plate of a flat knitting machine according to claim 1, characterized in that, The base (1) is provided with a wire feeding guide tube (9) with a first port having a flared structure. The first end of the wire feeding guide tube (9) is directly opposite the position between the lower clamping plate (2) and the upper clamping plate (3) where the steel wire of the base plate leaves. The second end is connected to the steel wire capillary guide tube.

9. The yarn feeding spool for the starting plate of a flat knitting machine according to claim 1, characterized in that, The base (1) is provided with a wire take-up and wire storage tube (10), which is located between the bottom plate steel wire entering the lower clamping plate (2) and the upper clamping plate (3), and is composed of several sections.

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