A needle selector thread package, an electromagnetic needle selector and a circular knitting machine

Abstract

This utility model relates to a needle selector coil for a circular knitting machine, an electromagnetic needle selector, and a circular knitting machine. The needle selector coil is used to connect to a PCB board. A magnetic element is provided at the end of the needle selector coil opposite the cutter head of the needle selector box, with each cutter head and needle selector coil corresponding to one another. The needle selector coil consists of a magnetic core and a mounting frame. The mounting frame includes a frame body and a fixing post. Support feet are located on the side of the fixing post and are electrically connected to the PCB board. There are two support feet. The winding direction of the conductive wire is from one support foot, through the frame body, to the other support foot to achieve current signal connection, thereby realizing the attraction and separation of the magnetic core and the magnetic element. This circular knitting machine needle selector coil can be directly connected to the PCB board inside the needle selector box and is installed entirely within the box. The winding direction of the conductive wire is from the support foot, through the frame body, and then to the other support foot and electrically connected to the PCB board to form an electromagnetic coil, effectively avoiding the risk of damage caused by external wiring to the needle selector box.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically a needle selector coil for a circular knitting machine, an electromagnetic needle selector, and a circular knitting machine. Background Technology

[0002] The circular knitting machine, also known as a circular weft knitting machine, is an important production equipment in the field of textile science and technology. It is mainly used to process various knitted fabrics, including clothing fabrics (such as T-shirts and sweatshirts), decorative fabrics, and industrial fabrics. Its core structure consists of a frame, transmission system, and cylinder assembly, and it features high output, low noise, and a high safety factor.

[0003] Circular knitting machines employ weft knitting technology, using a cylinder and an array of needles arranged in a circular pattern to knit tubular or flat fabrics in a continuous loop manner. Under the control of a cam system, the needles on the cylinder work in conjunction with components such as sinkers to form loops in the yarn and connect them to each other, ultimately knitting the desired fabric.

[0004] The needle selector coil on a circular knitting machine is one of the core electronic control components of a circular knitting machine (circular knitting machine). It is mainly used to precisely control the needle selection action, thereby enabling complex patterns and high-efficiency knitting production. Its function is similar to the "brain of the knitting machine." It drives the cutter head through electromagnetic signals to determine which needles participate in knitting, thus creating fabrics with different patterns.

[0005] Based on the driving method and technological differences, needle selectors in textile machinery can be basically divided into electromagnetic needle selectors, piezoelectric needle selectors, and mechanical needle selectors. Mechanical needle selectors are gradually being replaced by electronic needle selectors due to their traditional method. Piezoelectric needle selectors use the deformation of piezoelectric ceramics for driving, which is more energy-efficient, but has a higher cost. Electromagnetic needle selectors control the needle selection plate through electromagnets, which has a fast response, high precision, and low cost, and is favored by the large circular knitting machine market.

[0006] Electromagnetic needle selectors generally consist of a needle selector housing, screws, a signal control module, a cutter head, a cutter head rotation shaft, a cutter stop block, and a coil. Based on the principle of electromagnetic induction, they use current to control a magnetic field, driving the cutter head to move and thus determining the working state of the knitting needle. Currently available needle selectors typically have an electromagnetic coil installed in the upper part of the needle selector housing, while a magnetic core is installed in the lower part. The electromagnetic coil and magnetic core are arranged in a one-to-one correspondence. One end of the electromagnetic coil is connected to a terminal block, which in turn is connected to an intelligent control board. This assembly structure makes the external wiring of the needle selector housing prone to damage, resulting in low assembly efficiency and difficulties in later maintenance and fault diagnosis. Utility Model Content

[0007] To overcome the shortcomings of the prior art, the first objective of this utility model is to provide a needle selector coil for a circular knitting machine. This coil has an ingenious structure; by installing conductive wires inside the needle selector box, it effectively avoids the risk of damage caused by external wiring, ensuring the performance of both the coil and the needle selector, improving the user experience, and facilitating the promotion and application of this circular knitting machine needle selector coil in the field of textile machinery technology. The second objective of this utility model is to provide an electromagnetic needle selector. By applying the aforementioned needle selector coil, it also has the advantages of ensuring performance and improving the user experience. The third objective of this utility model is to provide a circular knitting machine. By applying the aforementioned electromagnetic needle selector, it also has the advantages of ensuring performance and improving the user experience, facilitating the promotion and application of this circular knitting machine in the field of knitting technology.

[0008] The aforementioned needle selector coil for a circular knitting machine, the aforementioned electromagnetic needle selector, and the aforementioned circular knitting machine are technically related and belong to the same utility model concept.

[0009] To achieve the first utility model objective mentioned above, this utility model adopts the following technical solution: a needle selector coil for a large circular knitting machine. The needle selector coil is used to connect with the PCB board in the signal control module inside the needle selector box. The needle selector box is also equipped with a cutting head. The end of the cutting head facing the needle selector coil is provided with a magnetic element. The cutting head and the needle selector coil are arranged in a one-to-one correspondence. The needle selector coil consists of a magnetic core and a mounting frame for mounting the magnetic core. The mounting frame includes a skeleton and a fixing post. The skeleton is used to wind conductive wire. The fixing post is also equipped with a support foot on its side. The support foot is electrically connected to the PCB board. There are two support feet. The conductive wire is wound to one of the support feet, then through the skeleton, and finally to the other support foot to realize the connection of the current signal, thereby realizing the attraction and separation of the magnetic core and the magnetic element.

[0010] In a preferred embodiment of this utility model, both the skeleton body and the fixing column have through mounting holes for mounting the magnetic core, and the magnetic core is mounted in the mounting holes with its ends exposed outside the fixing column.

[0011] In a preferred embodiment of this utility model, the support foot is fixed to the PCB board by patch welding.

[0012] As a preferred embodiment of this utility model, a positioning post is installed at the bottom of the fixing post, and a positioning hole is opened on the PCB board, the positioning post being used to be embedded in the positioning hole.

[0013] In a preferred embodiment of this utility model, the fixing column is a cuboid structure.

[0014] As a preferred embodiment of this utility model, the supporting foot is a seagull foot structure.

[0015] As a preferred embodiment of this utility model, a wire groove is provided at the bottom of the fixing column, the wire groove is provided obliquely from the support foot to the skeleton body, and the depth of the wire groove is adapted to the outer diameter of the conductive wire.

[0016] As a preferred embodiment of this utility model, the magnetic core is a soft magnetic core rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The needle selector coil of this utility model has an ingenious structure. Its entire assembly can be directly connected to the electrical control signal module inside the needle selector box and installed within the box. Specifically, the needle selector coil consists of a magnetic core and a mounting frame for mounting the magnetic core. The mounting frame includes a skeleton and a fixing post. Support feet are installed on the side of the fixing post for electrical connection to the PCB board via surface mount soldering. One end of the conductive wire is wound around one of these support feet. The main body of the wire is wound around the skeleton body, and the other end of the conductive wire is wound around another support foot and electrically connected to the PCB board to form an electromagnetic coil. Since the entire needle selector coil is installed inside the needle selector box, the electromagnetic coil is also installed inside the needle selector box. This makes the overall structure of the needle selector coil compact and effectively avoids the risk of damage caused by external wiring to the needle selector box. It ensures the performance of the needle selector coil and the needle selector, improves the user experience, and is conducive to the promotion and application of the above-mentioned large circular knitting needle selector coil in the field of textile machinery technology.

[0018] Furthermore, this utility model has mounting holes for installing the magnetic core inside both the skeleton body and the fixing post. The magnetic core is installed in the mounting holes and its end is exposed outside the fixing post to achieve attraction and separation with the magnetic component. This reduces the difficulty of installing the magnetic core and makes the range of the electromagnetic coil more concentrated, so as to achieve precise needle selection control.

[0019] To achieve the second utility model objective mentioned above, this utility model adopts the following technical solution: an electromagnetic needle selector, comprising the aforementioned needle selector coil for a large circular knitting machine; the needle selector coil is multiple, with adjacent needle selector coils equidistantly arranged; the needle selector box includes a needle selector box body and a cover plate; the PCB board and the needle selector coil are both installed inside the needle selector box body; the cover plate closes to the opening of the needle selector box body; it also includes a cutting head and a horn connector; the cutting head is partially located inside the needle selector box body and partially located outside the needle selector box body to control the movement of the needle through physical contact or obstruction; the horn connector is installed in the needle selector box to realize the electrical connection between the PCB board and the cable.

[0020] Compared with the prior art, the beneficial effects of this utility model are: the electromagnetic needle selector of this utility model, by applying the above-mentioned needle selector coil, also has the advantages of ensuring performance and improving user experience.

[0021] To achieve the third utility model objective mentioned above, the present utility model adopts the following technical solution: a circular knitting machine that uses the aforementioned electromagnetic needle selector.

[0022] Compared with the prior art, the beneficial effects of this utility model are: the circular knitting machine of this utility model, by applying the above-mentioned electromagnetic needle selector, also has the advantages of ensuring performance and improving user experience, which is conducive to the promotion and application of the above-mentioned circular knitting machine in the field of knitting technology. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the thread coil of a large circular knitting needle selector in one embodiment; Figure 2 This is a schematic diagram of the thread coil of a large circular knitting needle selector in one embodiment; Figure 3 This is a schematic diagram of the mounting bracket in the embodiment; Figure 4 This is a schematic diagram of the magnetic core structure in the embodiment; Figure 5 This is a schematic diagram of the installation of a needle selector coil for a large circular knitting machine in one embodiment; Figure 6 This is a schematic diagram of the PCB board structure in the embodiment; Figure 7 This is a schematic diagram of the structure of an electromagnetic needle selector in one embodiment; Figure 8 This is a schematic diagram of the structure of the needle selector box in an electromagnetic needle selector according to one embodiment; Figure 9 This is a schematic diagram of the internal structure of an electromagnetic needle selector in one embodiment.

[0024] Reference numerals in the attached diagram: 1. Selector coil; 1-1. Magnetic core; 1-2. Mounting bracket; 1-2-1. Skeleton body; 1-2-2. Fixing post; 1-2-3. Mounting hole; 1-2-4. Positioning post; 1-2-5. Wire groove; 1-3. Support foot; 2. Selector box; 2-1. Selector box body; 2-2. Cover plate; 3. Signal control module; 3-1. PCB board; 3-1-1. Positioning hole; 4. Blade head; 5. Magnetic component; 6. Horn connector. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] Currently available needle selectors typically have an electromagnetic coil installed in the upper part of the selector box, while a magnetic core is installed in the lower part. The electromagnetic coil and magnetic core are arranged in a one-to-one correspondence. One end of the electromagnetic coil is connected to a terminal block, which in turn is connected to an intelligent control board. This assembly structure makes the external wiring of the selector box prone to damage, results in low assembly efficiency, and makes subsequent maintenance and fault diagnosis difficult.

[0029] Example: To solve the above-mentioned technical problems, such as Figures 1 to 9 As shown in this embodiment, a needle selector coil for a large circular knitting machine is designed to directly connect to the PCB board 3-1 in the signal control module 3 within the needle selector box 2. Specifically, the electromagnetic coil is directly connected to the PCB board 3-1, eliminating the need for a wiring board as in existing technologies. This reduces the probability of damage to external wiring within the needle selector box, improves assembly efficiency, and effectively prevents external objects from affecting the coil by installing the entire coil within the needle selector box 2, thus reducing maintenance costs and complexity. The needle selector box 2 also includes a cutter head 4. The end of the cutter head 4 facing the needle selector coil 1 has a magnetic component 5, which can be a permanent magnet that retains its magnetism even without an external magnetic field. The cutter heads 4 and needle selector coils 1 are arranged in a one-to-one correspondence to achieve precise needle selection control. This design ensures that the action of each cutter head 4 can independently and accurately respond to the electromagnetic signal of its corresponding needle selector coil 1, thereby enabling complex knitting patterns and designs.

[0030] In this embodiment, the needle selector coil 1 mainly consists of a magnetic core 1-1 and a mounting bracket 1-2 for mounting the magnetic core 1-1. The magnetic core 1-1 can be a soft magnetic core rod, which has high magnetic permeability and can effectively conduct magnetic fields, improving the efficiency of the electromagnetic coil. Under the same current, a stronger magnetic field can be generated, thereby more effectively driving the cutter head 4 to perform needle selection. The mounting bracket 1-2 is used to fix and support the magnetic core 1-1, ensuring its stability during operation, improving the overall mechanical stability of the needle selector, and reducing failures caused by vibration or external forces. The mounting bracket 1-2 includes a skeleton body 1-2-1 and a fixing post 1-2-2. The skeleton body 1-2-1 is used to wind conductive wire to form an electromagnetic coil. Both the aforementioned skeleton 1-2-1 and the aforementioned fixing post 1-2-2 have interconnected mounting holes 1-2-3 for mounting the aforementioned magnetic core 1-1. The magnetic core 1-1 is mounted in the aforementioned mounting holes 1-2-3 with its end exposed outside the aforementioned fixing post 1-2-2 to achieve attraction and separation with the aforementioned magnetic component 5. Throughout the process, the mounting bracket 1-2 can tightly integrate the magnetic core 1-1 and the electromagnetic coil to form a compact unit, facilitating installation and maintenance.

[0031] To ensure the stability of the overall structure of the needle selector coil 1, two cuboid fixed posts 1-2-2 are provided. These two posts are symmetrically arranged along the vertical axis of the skeleton 1-2-1, i.e., installed at both ends of the skeleton 1-2-1. To facilitate the winding of conductive wires into electromagnetic coils on the skeleton 1-2-1, the skeleton 1-2-1 in this embodiment is a cylindrical structure. The cylindrical structure has a regular geometric shape, allowing the conductive wires to be wound evenly and tightly on its surface. The regular shape facilitates automated winding processes, improving production efficiency and winding quality. Furthermore, the cylindrical structure minimizes waste of conductive wires, as the wires can be tightly wound on the skeleton 1-2-1, making full use of space. The cylindrical structure also helps to form a uniform magnetic field distribution. When the conductive wires are wound on the cylinder, the magnetic field generated by the current passing through the coil is distributed more evenly inside and around the cylinder, thereby improving the efficiency and performance of the electromagnetic coil. The cylindrical skeleton 1-2-1 is usually made of a high magnetic permeability material, which can effectively conduct magnetic fields and further improve the performance of the electromagnetic coil.

[0032] In this embodiment, a support foot 1-3 is also installed on the side of the aforementioned fixed column 1-2-2. The support foot 1-3 provides additional mechanical support for the needle selector coil 1, ensuring the reliability and accuracy of the needle selector during operation. The support foot 1-3 is a gull-foot structure, which helps reduce displacement or deformation caused by mechanical vibration or external forces, ensuring that the various components of the needle selector maintain precise relative positions during operation. The gull-foot structure also distributes the weight of the needle selector over a larger area, reducing concentrated pressure on a single point, thereby improving the stability of the entire system.

[0033] To reduce installation difficulty and improve installation efficiency, in this embodiment, a positioning post 1-2-4 is installed at the bottom of the fixing post 1-2-2, and a positioning hole 3-1-1 is opened on the PCB board 3-1. The positioning post 1-2-4 is used to be embedded in the positioning hole 3-1-1, so that the needle selector coil 1 and the PCB board 3-1 can be directly connected.

[0034] The bottom of the aforementioned fixing post 1-2-2 is provided with a wire groove 1-2-5. The wire groove 1-2-5 is angled from the aforementioned support foot 1-3 towards the aforementioned frame body 1-2-1. This wire groove 1-2-5 provides a clear wiring path, ensuring that the conductive wires, when angled from the support foot 1-3 towards the frame body 1-2-1, can be routed along a predetermined path, avoiding tangled wires. Furthermore, the angled wire groove 1-2-5 reduces friction on the conductive wires during wiring, lowering the risk of wire damage and extending the service life of the conductive wires. The wire groove 1-2-5 also secures the conductive wires, preventing them from shifting due to vibration or external force during operation, thus ensuring the stability of the electromagnetic coil. The angled wire groove 1-2-5 also increases airflow, aiding in heat dissipation. During the operation of the electromagnetic coil, current flowing through the coil generates heat; good airflow improves heat dissipation. The depth of the aforementioned groove 1-2-5 is adapted to the outer diameter of the conductive wire to prevent the conductive wire from protruding from the groove 2-1-5 and causing adverse effects. In this embodiment, the end of the conductive wire led out from the skeleton 1-2-1 is routed through the groove 1-2-5 and connected to the seagull foot, i.e., the aforementioned support foot 1-3. The groove 1-2-5 extends from the inside, i.e., below the skeleton 1-2-1, towards the seagull foot, with a trend from deep to shallow and from wide to narrow, extending towards the bottom of the seagull foot. The seagull foot is fixed at the aforementioned fixing post 1-2-2 and does not contact the magnetic core 1-1. One end of the coil is wound around the seagull foot and is simultaneously connected and positioned on the PCB board 3-1 using a surface mount method. The signal control module 3 controls the power supply. The seagull foot, which is surface mount soldered, acts on the coil, and electromagnetic induction acts on the iron core rod, i.e., the aforementioned magnetic core 1-1, thereby achieving the working control of the cutter head 4.

[0035] In the above embodiments, the fixed column 1-2-2 and the skeleton body 1-2-1 can be integrally formed by injection molding, thereby reducing the assembly difficulty while ensuring its quality.

[0036] The above structure is the overall structure of the needle selector coil 1. Its size and positioning not only optimize the internal space, but also make the installation more convenient, improving the installation speed and user experience.

[0037] This embodiment presents a large circular knitting machine needle selector coil. This coil has an ingenious structure, allowing it to be directly connected to the electronic control signal module 3 within the selector box 2. Specifically, the selector coil 1 consists of a magnetic core 1-1 and a mounting frame 1-2 for mounting the magnetic core 1-1. The mounting frame 1-2 includes a skeleton 1-2-1 and a fixing post 1-2-2. Conductive wire is wound around the skeleton 1-2-1 to form an electromagnetic coil. Since the entire selector coil 1 is installed within the selector box 2, the formed electromagnetic coil is also installed within the box. Inside the needle selector box 2, mounting holes 1-2-3 are formed inside both the skeleton body 1-2-1 and the fixing post 1-2-2 for mounting the magnetic core 1-1. The magnetic core 1-1 is installed in the mounting holes 1-2-3 and its end is exposed outside the fixing post 1-2-2 to achieve attraction and separation with the magnetic component 5. This makes the overall structure of the needle selector coil 2 compact, while effectively avoiding the risk of damage caused by external wiring of the needle selector box 2, ensuring the performance of the needle selector coil and the needle selector, improving the user experience, and facilitating the promotion and application of the above-mentioned large circular knitting machine needle selector coil in the field of textile machinery technology.

[0038] The needle selector coil in the above embodiments can be used in, but is not limited to, electromagnetic needle selectors. In an electromagnetic needle selector, there are multiple needle selector coils 1, with adjacent coils 1 arranged equidistantly. The needle selector box 2 includes a box body 2-1 and a cover plate 2-2. The PCB board 3-1 and the needle selector coils 1 are both installed inside the box body 2-1. The cover plate 2-2 closes onto the opening of the box body 2-1. It also includes a cutter head 4 and a horn connector 6. The cutter head 4 is partially located inside the box body 2-1 and partially outside to control needle movement through physical contact or obstruction. The horn connector 6 is installed in the box 2 to achieve electrical connection between the PCB board 3-1 and the cable. This electromagnetic needle selector is used in circular knitting machines to ensure the machine's performance during use, extend its service life, reduce operating costs, and improve the user experience.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0040] Although this document frequently uses reference numerals from the accompanying drawings, such as 1. needle selector coil; 1-1. magnetic core; 1-2. mounting bracket; 1-2-1. skeleton body; 1-2-2. fixing post; 1-2-3. mounting hole; 1-2-4. positioning post; 1-2-5. wire groove; 1-3. support foot; 2. needle selector box; 2-1. needle selector box body; 2-2. cover plate; 3. signal control module; 3-1. PCB board; 3-1-1. positioning hole; 4. blade; 5. magnetic component; 6. horn connector, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A needle selector coil for a large circular knitting machine, characterized in that: The needle selector coil (1) is used to connect to the PCB board (3-1) in the signal control module (3) inside the needle selector box (2). The needle selector box (2) is also equipped with a blade (4). The blade (4) has a magnetic component (5) at the end facing the needle selector coil (1). The blade (4) and the needle selector coil (1) are arranged in a one-to-one correspondence. The needle selector coil (1) consists of a magnetic core (1-1) and a mounting frame (1-2) for mounting the magnetic core (1-1). The mounting frame (1-2) includes a skeleton (1-2-1) and a fixing post. (1-2-2), the skeleton body (1-2-1) is used to wind conductive wires on the outside. The fixed post (1-2-2) is also equipped with a support foot (1-3) on the side. The support foot (1-3) is electrically connected to the PCB board (3-1). There are two support feet (1-3). The conductive wire is wound to one of the support feet (1-3), then through the skeleton body (1-2-1), and finally wound to the other support foot (1-3) to realize the connection of the current signal, thereby realizing the attraction and separation of the magnetic core (1-1) and the magnetic component (5).

2. The thread coil of a large circular knitting machine needle selector according to claim 1, characterized in that: The skeleton (1-2-1) and the fixing post (1-2-2) both have through mounting holes (1-2-3) for mounting the magnetic core (1-1). The magnetic core (1-1) is mounted in the mounting hole (1-2-3) and its end is exposed on the fixing post (1-2-2).

3. The thread coil of a large circular knitting machine needle selector according to claim 1, characterized in that: The support feet (1-3) are fixed to the PCB board (3-1) by surface mount soldering.

4. The thread coil of a large circular knitting machine needle selector according to claim 1, characterized in that: The bottom of the fixing post (1-2-2) is equipped with a positioning post (1-2-4), and the PCB board (3-1) has a positioning hole (3-1-1). The positioning post (1-2-4) is used to be embedded in the positioning hole (3-1-1).

5. The thread coil of a large circular knitting machine needle selector according to claim 1, characterized in that: The fixed column (1-2-2) is a cuboid structure.

6. The thread coil of a needle selector for a large circular knitting machine according to claim 1, characterized in that: The supporting feet (1-3) are gull-foot structures.

7. The thread coil of a large circular knitting machine needle selector according to claim 1, characterized in that: The bottom of the fixed column (1-2-2) is provided with a wire groove (1-2-5). The wire groove (1-2-5) is set obliquely from the support foot (1-3) towards the skeleton body (1-2-1). The depth of the wire groove (1-2-5) is adapted to the outer diameter of the conductive wire.

8. The thread coil of a needle selector for a large circular knitting machine according to claim 1, characterized in that: The magnetic core (1-1) is a soft magnetic core rod.

9. An electromagnetic needle selector, comprising a coil of a large circular knitting machine needle selector as described in any one of claims 1 to 8; characterized in that: The needle selector coil (1) is multiple, with adjacent needle selector coils (1) arranged at equal intervals. The needle selector box (2) includes a needle selector box body (2-1) and a cover plate (2-2). The PCB board (3-1) and the needle selector coil (1) are both installed inside the needle selector box body (2-1). The cover plate (2-2) covers the opening of the needle selector box body (2-1). It also includes a cutter head (4) and a horn connector (6). The cutter head (4) is partially located inside the needle selector box body (2-1) and partially located outside the needle selector box body (2-1) to control the movement of the needle through physical contact or obstruction. The horn connector (6) is installed in the needle selector box (2) to realize the electrical connection between the PCB board (3-1) and the cable.

10. A circular knitting machine, characterized in that: The application is an electromagnetic needle selector as described in claim 9.

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