Novel magnetic isolation structure for needle selector

Abstract

The utility model provides a novel magnetism isolating structure for a needle selector, which comprises a magnetism isolating sheet and a fixing block, the magnetism isolating sheet comprises a connecting part, two vertical parts and two arc parts, the two sides of the connecting part are respectively connected with the two vertical parts, the arc parts are connected with one ends, far away from the connecting part, of the vertical parts, and the fixing block is connected with the connecting part. The fixing block is fixed on the needle selector shell and located between the two vertical parts, an arch-shaped hole groove used for containing a coil iron core is formed between the arc parts of every two adjacent magnetism isolating pieces, the needle selector shell can be suitable for needle selectors with any number of tool bits, and the production cost and the maintenance cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of knitting machines, and particularly to a novel magnetic isolation structure for a selector. Background Art

[0002] The diversity of selectors is reflected in their cutter head configurations. Common models on the market include 8-cutter head, 10-cutter head, 12-cutter head, and 16-cutter head models. Each model has corresponding needle selection capabilities and performance according to the number of cutter heads. To ensure the precise operation of the selector, the precise positioning of the coil iron core is crucial. If the distance between the coil iron core and the cutter head is inaccurate, whether it is too far or too close, it may cause inappropriate operating force of the selector, and thus form defects on the fabric. In addition, the fixing method of the coil iron core is also extremely important, and it must be ensured that its positioning stability can still be maintained under the action of external forces such as vibration. Setting a magnetic isolation shield around the electromagnet is an effective means to suppress magnetic field diffusion. By using an iron plate or other non-magnetic materials as the magnetic isolation shield, the magnetic field generated by the electromagnet can be effectively isolated to prevent it from acting on surrounding objects that do not need to be affected.

[0003] Currently, the Chinese patent with the authorization announcement number CN209508547U discloses a magnetic isolation structural member for an electromagnet selector, which is used to isolate the magnetic field between coil iron cores. The magnetic isolation structural member includes a first partition and a plurality of second partitions. A plurality of first grooves are formed between the first partition and two adjacent second partitions. A plurality of second partitions are all connected to the first partition. The coil iron core is placed in the first groove. The magnetic rod of the coil iron core is fixed on the selector through a fixing pressing piece. Both ends of the fixing pressing piece have second grooves, and the second grooves are in fit with the magnetic rod of the coil iron core. The fixing pressing piece and the selector are both provided with holes, and the holes of the fixing pressing piece are in fit with the holes of the selector for fixation; the magnetic isolation structural member facilitates the installation of the coil iron core, has high installation and positioning accuracy, and good heat dissipation performance.

[0004] However, this kind of magnetic isolation structural member is applicable to ten coil iron cores at one time. When one of the second partitions is damaged, the entire magnetic isolation structural member needs to be replaced, which will cause relatively large waste of resources. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a novel magnetic isolation structure for a selector.

[0006] To solve the above technical problems, the technical solution of the present utility model is: a novel magnetic isolation structure for a selector, including a magnetic isolation sheet and a fixing block. The magnetic isolation sheet includes a connecting portion, two vertical portions and two arc portions. The two sides of the connecting portion are respectively connected to the two vertical portions. The arc portion is connected to the end of the vertical portion far from the connecting portion. The fixing block is fixed on the selector housing and is located between the two vertical portions. An arched hole groove for placing a coil iron core is formed between the arc portions of two adjacent magnetic isolation sheets.

[0007] To implement the above technical solution, a plurality of fixing blocks are fixed on the selector housing. The coil iron core is located between the two fixing blocks. The magnetic isolation sheet is sleeved on the fixing block so that an arched hole groove is formed between the two magnetic isolation sheets to play a role in magnetic isolation. When a single magnetic isolation sheet is damaged, only the damaged magnetic isolation sheet needs to be replaced, greatly reducing the maintenance cost and production cost.

[0008] As a preferred solution of the present utility model, it further includes a cover. The cover is fixed on the selector housing. A connecting plane is provided on the connecting portion, and the connecting plane abuts against the cover.

[0009] To implement the above technical solution, the magnetic isolation sheet is not easily detached from the fixing block.

[0010] As a preferred solution of the present utility model, the central angle of the arc portion is 90 degrees.

[0011] To implement the above technical solution, it is ensured that the arc portions of the magnetic isolation sheet are seamlessly butted with the arc portions of adjacent magnetic isolation sheets to jointly form a complete semi-circular structure.

[0012] As a preferred solution of the present utility model, the magnetic isolation sheet 1 is made of 65Mn steel material.

[0013] In summary, the present utility model has the following beneficial effects:

[0014] The present utility model is a novel selector structure that adopts an independent magnetic isolation sheet. Compared with the traditional integrated iron partition design, the production process is significantly simplified. Since the magnetic isolation sheet can be manufactured and assembled separately, the dependence on complex molds is reduced and the manufacturing difficulty is lowered. In addition, the design of the independent magnetic isolation sheet also makes the installation and positioning of the coil iron core more convenient and accurate, thereby improving the overall assembly efficiency and the quality of the final product.

[0015] The arc part of the magnetic isolation sheet is carefully designed to have a standard central angle of 90 degrees, ensuring seamless docking with the arc parts of adjacent magnetic isolation sheets to form a complete semi-circular structure. This design of the semi-circular structure not only presents a neat and symmetrical aesthetic visually, but also offers significant advantages functionally. When the magnetic isolation sheets are precisely fitted at a 90-degree central angle, the joint between them forms a smooth transition, which helps reduce the local concentration of the magnetic field at the joint, thereby improving the overall magnetic isolation effect. Brief Description of the Drawings

[0016] Figure 1 Schematic diagram of the position of the magnetic isolation sheet in the embodiment;

[0017] Figure 2 Schematic diagram showing the position of the fixing block;

[0018] Figure 3 Schematic diagram showing the position of the cover;

[0019] Figure 4 Schematic diagram showing the structure of the magnetic isolation sheet;

[0020] Figure 5 Schematic diagram showing the structure of the arc part of the magnetic isolation sheet;

[0021] Figure 6 Schematic diagram showing the connection of two magnetic isolation sheets.

[0022] Reference Numerals: 1, magnetic isolation sheet; 11, connecting part; 12, vertical part; 13, arc part; 14, arched hole groove; 2, fixing block; 3, selector housing; 4, cover. Detailed Description of the Preferred Embodiments

[0023] The following further details the specific embodiments of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and master.

[0024] A novel magnetic isolation structure for a selector includes a magnetic isolation sheet 1 and a fixing block 2. The fixing block 2 is fixed on the selector housing 3, and a plurality of fixing blocks 2 are arranged along the width direction of the selector housing 3 and are divided into two columns, and the two columns of fixing blocks 2 are arranged in a staggered manner. The coil iron core is located between two adjacent fixing blocks 2.

[0025] The magnetic isolation sheet 1 includes a connecting part 11, two vertical parts 12 and two arc parts 13. The two sides of the connecting part 11 are respectively connected to the two vertical parts 12, and the arc part 13 is connected to the end of the vertical part 12 far from the connecting part 11.

[0026] The magnetic isolation sheet 1 can be applied to the selector with different numbers of cutter heads. Whether it is an 8-cutter head, 10-cutter head, 12-cutter head or 16-cutter head selector, effective magnetic isolation can be achieved through this magnetic isolation sheet 1, reducing the complexity of production and inventory management. The magnetic isolation sheet 1 is made of 65Mn steel material, and the processing technology is completed by one-time stamping. This processing method can not only ensure the shape accuracy and dimensional consistency of the magnetic isolation sheet 1, but also reduce various mechanical impacts and wear that may occur during long-term use.

[0027] The magnetic isolation sheet 1 is sleeved on the fixed block 2, so that the fixed block 2 is located between the two vertical parts 12, restricting the displacement of the magnetic isolation sheet 1 in the width direction of the selector housing 3. An arched hole 14 for placing the coil iron core is formed between the arc parts 13 of two adjacent magnetic isolation sheets 1. The central angle of the arc part 13 is 90 degrees.

[0028] Then the cover 4 is fixed on the selector housing 3, so that the cover 4 abuts against the surface of the connecting part 11, making the magnetic isolation sheet 1 placed stably.

[0029] The magnetic isolation sheet 1 is made of magnetic material. When the cutter head swings at high frequency, it attracts with the magnet of the cutter head itself to relieve the rebound phenomenon during the rotation impact of the cutter head, improving the stability of the selector under high-speed movement.

[0030] Since there are multiple groups of iron coils in the selector, it is impossible to ensure the consistency of array processing during processing, and there is a deviation in the axis of individual iron coils. The magnetic isolation sheet 1 is made in the form of a thin sheet bending. By modifying the bending angle, the iron coil can be placed in the middle position between the two magnetic isolation sheets 1, making the magnetic field distribution uniform and the coil magnetization more concentrated.

[0031] The magnetic isolation sheet 1 is placed on the fixed block 2 and is in direct contact with the selector housing 3. The heat on the magnetic isolation sheet 1 is directly transferred to the selector housing 3, effectively improving the heat dissipation effect and extending the service life.

[0032] Of course, the above are only typical examples of the present utility model. In addition, the present utility model can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

Claims

1. A novel magnetic isolation structure for a selector, characterized in that: It includes a magnetic isolation sheet and a fixing block. The magnetic isolation sheet includes a connecting part, two vertical parts and two arc parts. The two sides of the connecting part are respectively connected to the two vertical parts. The arc part is connected to the end of the vertical part far away from the connecting part. The fixing block is fixed on the selector housing and located between the two vertical parts. An arched hole groove for placing the coil iron core is formed between the arc parts of two adjacent magnetic isolation sheets.

2. The novel magnetic isolation structure for a selector according to claim 1, characterized in that: It further includes a cover. The cover is fixed on the selector housing. A connecting plane is provided on the connecting part, and the connecting plane abuts against the cover.

3. The novel magnetic isolation structure for a selector according to claim 1, characterized in that: The central angle of the arc part is 90 degrees.

4. A novel magnetic isolation structure for a selector, characterized in that: The magnetic isolation sheet is made of 65Mn steel material.

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