A double-axis winding method for needle selector

Abstract

The invention discloses a double-axis winding method for a needle selector. It relates to the technical field of needle selectors. The application specifically includes winding the enameled wire in a spiral shape around the outer periphery of a first winding shaft to form a first spiral winding, the top of the first winding shaft is N-pole after being magnetized, and the energized first spiral winding is used to demagnetize the first winding shaft; winding the enameled wire in a spiral shape around the outer periphery of a second winding shaft to form a second spiral winding, so that the second spiral winding is spaced apart from the first spiral winding, and the top of the second winding shaft is S-pole after being magnetized. The top of the first winding shaft of the present invention is N-pole after being magnetized, and the top of the first winding shaft is S-pole after being magnetized. When the first winding shaft and the second winding shaft adsorb a spring needle, the spring needle conducts the top of the first winding shaft with the top of the second winding shaft, so that the magnetic flux lines propagate in the spring needle, thereby reducing the magnetic field interference with the surrounding magnetic bars and reducing the energy loss of the magnetic flux lines, thereby ensuring the accuracy of needle selection and improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of needle selectors, and in particular to a double-axis winding method for a needle selector. Background Art

[0002] Most of the sweaters people wear daily are made of yarns with different colors. During the production process, when one color of yarn is being knitted, the yarns of other colors need to stop knitting. Therefore, the yarns of different colors need to be selected and stopped constantly during the knitting process. At present, the market generally uses computer-controlled electromagnetic needle selection technology to control the knitting machine to select needles, thereby realizing the rearrangement of the sweater colors. Through the frequent operation of the needle selector, sweaters of various colors can be formed.

[0003] At present, the needle selectors of knitting machines mostly adopt electromagnetic needle selectors. Electromagnetic needle selectors are more and more widely used due to their simple structure and convenient use. Electromagnetic needle selectors are usually provided with a number of windings corresponding to the spring needles of the knitting machine. Through the magnetization or demagnetization of the corresponding windings, the corresponding elastic needles are adsorbed or released, thereby achieving the purpose of needle selection.

[0004] In the prior art, for a single spring needle, the needle selector winding used is to attract or release the spring needle through a single winding, and the magnetic flux loop of the single winding is stray, and the magnetic field interferes greatly. When the winding attracts or releases the corresponding spring needle, it is easy to produce a large magnetic force effect on the surrounding windings and spring needles, which may cause needle selection errors, and then cause knitting errors, affecting production efficiency. Summary of the invention

[0005] In view of the above shortcomings, the technical problem to be solved by the present invention is to provide a dual-axis winding method for a needle selector, which can reduce the magnetic interference between windings, thereby ensuring the accuracy of needle selection and improving production efficiency.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is a double-axis winding method of a needle selector, comprising the following steps: Winding the enameled wire in a spiral shape around the outer periphery of the first winding shaft to form a first spiral winding, wherein the first winding shaft is magnetized so that the top end thereof is an N pole, and the first spiral winding which is energized is used to demagnetize the first winding shaft; The enameled wire is spirally wound around the outer circumference of the second winding shaft to form a second spiral winding, and the second spiral winding is spaced apart from the first spiral winding. After the second winding shaft is magnetized, the top end is an S pole, and the current flow direction of the second spiral winding is opposite to that of the first spiral winding. The energized second spiral winding is used to demagnetize the second winding shaft.

[0007] Further, the enameled wire is spirally wound around the outer periphery of the first winding shaft to form a first spiral winding, and the enameled wire is spirally wound around the outer periphery of the second winding shaft to form a second spiral winding, so that the second spiral winding is spaced apart from the first spiral winding, including: At least a portion of the first winding shaft is arranged parallel to and spaced from at least a portion of the second winding shaft, so that the enameled wire is spirally wound around the outer circumference of the first winding shaft to form the first spiral winding, and the enameled wire is spirally wound around the outer circumference of the second winding shaft to form the second spiral winding.

[0008] Further, at least a portion of the first winding axis is arranged parallel to and spaced from at least a portion of the second winding axis, comprising: The bottom of the first winding shaft is inserted into the first fixed cavity of the winding base, and the bottom of the second winding shaft is inserted into the second fixed cavity of the winding base. The first fixed cavity and the second fixed cavity are arranged in parallel and spaced apart in the winding base.

[0009] Furthermore, the top end of the first winding shaft is N-pole after being magnetized, and the top end of the second winding shaft is S-pole after being magnetized, including: A permanent magnet is arranged in the winding base, so that the bottom end of the first winding shaft is in contact with the N pole of the permanent magnet, and the bottom end of the second winding shaft is in contact with the S pole of the permanent magnet.

[0010] Furthermore, a permanent magnet is arranged in the winding base, so that the bottom end of the first winding shaft is in contact with the N pole of the permanent magnet, and the bottom end of the second winding shaft is in contact with the S pole of the permanent magnet, including: The permanent magnet is arranged in the third fixed cavity of the winding base, the third fixed cavity is located between the first fixed cavity and the second fixed cavity, and one end of the third fixed cavity is provided with a first opening connected to the first fixed cavity, and the other end is provided with a second opening connected to the second fixed cavity, the N pole of the permanent magnet is fitted with the bottom end of the first winding shaft through the first opening, and the S pole is fitted with the bottom end of the second winding shaft through the second opening.

[0011] Further, at least a portion of the first winding axis is arranged parallel to and spaced from at least a portion of the second winding axis, comprising: The first contact surface of the first winding shaft and the second contact surface of the second winding shaft are arranged on the same horizontal plane, the first contact surface is arranged on the top of the first winding shaft, and the second contact surface is arranged on the top of the second winding shaft.

[0012] Further, the enameled wire is spirally wound around the outer periphery of the first winding shaft to form a first spiral winding, and the enameled wire is spirally wound around the outer periphery of the second winding shaft to form a second spiral winding, including: Winding the enameled wire in a spiral shape from bottom to top around the outer circumference of the first winding shaft to form a first winding wire, wherein the first winding wire and the first winding shaft wound with the first winding wire form the first spiral winding; The enameled wire is spirally wound around the outer periphery of the second winding shaft from top to bottom to form a second winding wire. The second winding wire and the second winding shaft wound with the second winding wire form the second spiral winding.

[0013] Further, the second spiral winding has a current flow direction opposite to that of the first spiral winding, the first spiral winding that is energized is used to demagnetize the first winding shaft, and the second spiral winding that is energized is used to demagnetize the second winding shaft, including: The current flow directions of the first winding and the second winding are opposite. The first winding that is energized is used to demagnetize the first winding shaft, and the second winding that is energized is used to demagnetize the second winding shaft.

[0014] Further, the enameled wire is spirally wound around the outer periphery of the first winding shaft from bottom to top to form a first winding, and the enameled wire is spirally wound around the outer periphery of the second winding shaft from top to bottom to form a second winding, comprising the following steps: Step S1: Winding the enameled wire in a spiral shape from bottom to top around the outer circumference of the first winding shaft to form the first winding; Step S2: pulling the enameled wire horizontally to the second winding shaft at the top of the formed first winding; Step S3: Winding the enameled wire in a spiral shape from top to bottom around the outer circumference of the second winding shaft to form the second winding.

[0015] Furthermore, the enameled wire is spirally wound from bottom to top on the outer periphery of the first winding shaft to form a first winding, and the enameled wire is spirally wound from top to bottom on the outer periphery of the second winding shaft to form a second winding, further comprising the following steps: Step S4: pulling the enameled wire horizontally to the first winding axis at the bottom of the first winding formed, so that the head end of the first winding and the tail end of the second winding are routed on the same side.

[0016] The dual-axis winding method of a needle selector proposed by the present invention has the following beneficial effects: (1) The method forms a first spiral winding by spirally winding the enameled wire around the outer periphery of a first winding shaft, and forms a second spiral winding by spirally winding the enameled wire around the outer periphery of a second winding shaft. After the first winding shaft is magnetized, the top end is an N pole, and after the first winding shaft is magnetized, the top end is an S pole. When the first winding shaft and the second winding shaft adsorb the spring needle, the spring needle conducts the top end of the first winding shaft with the top end of the second winding shaft, so that the magnetic flux lines propagate in the spring needle, thereby reducing the magnetic field interference with the surrounding windings and reducing the energy loss of the magnetic flux lines, thereby ensuring the accuracy of needle selection and improving production efficiency. (2) In this method, the current flow directions of the first spiral winding and the second spiral winding are opposite, so that when the first spiral winding is energized, the magnetic field formed in the first spiral winding has a magnetic flux line direction opposite to the internal magnetic flux line direction of the first winding shaft after magnetization. Therefore, the magnetic field formed in the first spiral winding and the magnetic field after magnetization of the first winding shaft cancel each other out, thereby reducing the magnetic field strength of the first winding shaft and achieving demagnetization of the first winding shaft; (3) In this method, the first winding shaft and the second winding shaft are spaced apart, so that the first spiral winding is formed by spirally winding the enameled wire on the outer circumference of the first winding shaft; and the second spiral winding is formed by spirally winding the enameled wire on the outer circumference of the second winding shaft, so that the first spiral winding and the second spiral winding are spaced apart; (4) In this method, the bottom of the first winding shaft is inserted into the first fixing cavity, and the bottom of the second winding shaft is inserted into the second fixing cavity. Since the first fixing cavity and the second fixing cavity are arranged at intervals on the winding base, the first winding shaft is fixed by the first fixing cavity, and the second winding shaft is fixed by the second fixing cavity, so that the first winding shaft and the second winding shaft are arranged at intervals on the winding base; (5) In this method, a permanent magnet is arranged on the winding base, the bottom end of the first winding shaft contacts the N pole of the permanent magnet, and the bottom end of the second winding shaft contacts the S pole of the permanent magnet. The first winding shaft, the permanent magnet and the second winding shaft are regarded as a whole magnet, the first winding shaft is the N pole of the magnet, and the second winding shaft is the S pole of the magnet. The N pole and the S pole of the magnet are connected through the spring needle, so that the magnetic flux lines outside the magnet propagate in the spring needle, thereby reducing the magnetic field interference with the surrounding windings and reducing the energy loss of the magnetic flux lines, thereby ensuring the accuracy of needle selection and improving production efficiency; (6) This method arranges the permanent magnet in the third fixed cavity of the winding base, the third fixed cavity is located between the first fixed cavity and the second fixed cavity, and one end of the third fixed cavity is provided with a first opening connected to the first fixed cavity, and the other end is provided with a second opening connected to the second fixed cavity, so that the N pole of the permanent magnet fits with the bottom end of the first winding shaft through the first opening, and the S pole fits with the bottom end of the second winding shaft through the second opening, thereby forming a U-shaped integral magnet with the first winding shaft, the permanent magnet and the second winding shaft; (7) This method sets the first contact surface at the top of the first winding shaft and the second contact surface at the top of the second winding shaft on the same horizontal plane, so that the first contact surface and the second contact surface can better contact the spring needle, so that the spring needle can better conduct the first contact surface with the second contact surface, further reduce the dispersion of magnetic flux lines, enhance the adsorption force of the first winding shaft and the second winding shaft on the spring needle, thereby ensuring the accuracy of needle selection and improving production efficiency; (8) In this method, the head end of the first winding is connected to the positive electrode of the power supply circuit, the tail end of the first winding is connected in series with the head end of the second winding, and the tail end of the second winding is connected to the negative electrode of the power supply circuit, thereby forming a closed loop, so that the power supply circuit can pass current to the first winding and the second winding at the same time, thereby making the structure of the needle selector more compact and reducing the production cost; (9) This method uses one enameled wire to manufacture the first winding and the second winding, and connects the first winding and the second winding in series, thereby reducing the use of enameled wire and reducing production costs, and making the series connection of the first winding and the second winding simpler, thereby making the implementation of the dual-axis winding structure simpler and more convenient, and further improving production efficiency; (10) This method allows the tail end of the second winding to be routed on the same side as the head end of the first winding, making the connection between the first winding and the second winding and the power supply circuit simpler and more convenient, and easier to implement, and making the routing of the first winding and the second winding more regular, thereby making the implementation of the dual-axis winding method simpler and more convenient, and further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a first spiral winding and a second spiral winding arranged on a winding base in a dual-axis winding method of a needle selector according to an embodiment of the present invention; Figure 2 It is a cross-sectional schematic diagram of a first spiral winding and a second spiral winding arranged on a winding base in a dual-axis winding method of a needle selector according to an embodiment of the present invention; Figure 3 A schematic structural diagram of a winding base of a dual-axis winding method of a needle selector according to an embodiment of the present invention; Figure 4 A schematic structural diagram of a first spiral winding of a dual-axis winding method of a needle selector according to an embodiment of the present invention; Figure 5 A schematic structural diagram of a second spiral winding of a dual-axis winding method of a needle selector according to an embodiment of the present invention; Figure 6 The figure is a schematic diagram of the principle of a dual-axis winding method of a needle selector according to an embodiment of the present invention.

[0018] Figure numerals: 1. first spiral winding; 11. first winding axis; 111. first contact surface; 12. first winding; 2. second spiral winding; 21. second winding axis; 211. second contact surface; 22. second winding; 3. winding base; 31. first fixed cavity; 32. second fixed cavity; 33. third fixed cavity; 34. wiring groove; 4. permanent magnet; 5. isolation plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 to Figure 6 A dual-axis winding method of a needle selector according to an embodiment of the present invention comprises the following steps: The enameled wire is spirally wound around the outer periphery of the first winding shaft 11 to form a first spiral winding 1. After the first winding shaft 11 is magnetized, the top end is an N pole. The energized first spiral winding 1 is used to demagnetize the first winding shaft 11. The enameled wire is spirally wound around the outer circumference of the second winding shaft 21 to form a second spiral winding 2, and the second spiral winding 2 is spaced apart from the first spiral winding 1. After the second winding shaft 21 is magnetized, the top end is an S pole, and the current flow direction of the second spiral winding 2 is opposite to that of the first spiral winding 1. The energized second spiral winding 2 is used to demagnetize the second winding shaft 21.

[0021] In the present application, the dual-axis winding method forms a first spiral winding 1 by spirally winding the enameled wire around the outer periphery of the first winding shaft 11; and forms a second spiral winding 2 by spirally winding the enameled wire around the outer periphery of the second winding shaft 21, and the formed first spiral winding 1 is spaced apart from the formed second spiral winding 2.

[0022] Since the top of the first winding shaft 11 is an N pole after being magnetized and the top of the second winding shaft 21 is an S pole after being magnetized, the first spiral winding 1 and the second spiral winding 2 can simultaneously adsorb the spring pins through the magnetic attraction generated by the top of the first winding shaft 11 and the top of the second winding shaft 21, thereby achieving the attraction of the corresponding spring pins.

[0023] The direction of the magnetic flux lines of a magnet is from the N pole to the S pole outside the magnet, and from the S pole to the N pole inside the magnet. In the prior art, for a single spring needle, the needle selector winding used is to attract or release the spring needle through the same magnetic pole, and the magnetic flux lines of the same magnetic pole are stray, and the magnetic fields interfere with each other greatly. When the winding attracts or releases the corresponding spring needle, it is easy to produce a large magnetic force on the surrounding windings and spring needles, which may lead to needle selection errors, and then cause weaving errors, affecting production efficiency.

[0024] In the present application, the top end of the first winding shaft 11 of the first spiral winding 1 is magnetized to be an N pole, and the top end of the second winding shaft 21 of the second spiral winding 2 is magnetized to be an S pole. When the first winding shaft 11 and the second winding shaft 21 simultaneously absorb the corresponding spring needles, the spring needles connect the top end of the first winding shaft 11 with the top end of the second winding shaft 21.

[0025] In this embodiment, the first winding shaft 11, the second winding shaft 21 and the spring needle are all made of soft magnetic materials. Since air is a non-magnetic medium, its magnetic resistance is much greater than that of soft magnetic materials, and similar to electric current, magnetic flux lines always take the path with the smallest magnetic resistance (maximum magnetic permeability), so when the first winding shaft 11 and the second winding shaft 21 adsorb the spring needle, outside the first winding shaft 11 and the second winding shaft 21, most of the magnetic flux lines propagate from the N pole to the S pole in the spring needle.

[0026] On the one hand, it can prevent the magnetic flux lines propagating outside the first winding shaft 11 and the second winding shaft 21 from being scattered, thereby reducing the magnetic field interference with the surrounding winding structure; on the other hand, since the magnetic resistance of the spring needle is much smaller than the magnetic resistance of the air, the energy loss of the magnetic flux lines propagating in the spring needle is small, thereby enhancing the adsorption force of the first winding shaft 11 and the second winding shaft 21 on the corresponding spring needle, thereby ensuring the accuracy of needle selection and improving production efficiency.

[0027] As mentioned in the foregoing, the first winding shaft 11 and the second winding shaft 21 are made of soft magnetic material. Therefore, after the first winding shaft 11 and the second winding shaft 21 are magnetized, they can simultaneously generate magnetic attraction on the corresponding spring pins, causing the spring pins to move and produce elastic deformation, thereby adsorbing the spring pins on the top ends of the first winding shaft 11 and the second winding shaft 21, thereby realizing the attraction of the corresponding spring pins by the needle selector.

[0028] Since the first winding 11 and the second winding 21 exhibit opposite polarities after being magnetized, in the present application, the current flow directions of the first spiral winding 1 and the second spiral winding 2 are opposite, so that when the first spiral winding 1 is energized, the magnetic field formed in the first spiral winding 1 has a magnetic flux line direction opposite to the internal magnetic flux line direction of the first winding 11 after magnetization. Therefore, the magnetic field formed in the first spiral winding 1 and the magnetic field of the first winding 11 after magnetization cancel each other out, thereby reducing the magnetic field strength of the first winding 11 and achieving demagnetization of the first winding 11.

[0029] When the second spiral winding 2 is energized, the magnetic field formed in the second spiral winding 2 has a magnetic flux line direction opposite to the internal magnetic flux line direction of the second winding shaft 21 after magnetization. Therefore, the magnetic field formed in the second spiral winding 2 and the magnetic field of the second winding shaft 21 after magnetization cancel each other out, thereby reducing the magnetic field strength of the second winding shaft 21 and achieving demagnetization of the second winding shaft 21.

[0030] When the magnetic attraction of the first winding shaft 11 and the second winding shaft 21 on the spring pin is less than the elastic force of the spring pin to restore its own deformation, the first winding shaft 11 and the second winding shaft 21 release the adsorbed spring pin to restore the spring pin to its original shape. Therefore, the first spiral winding 1 and the second spiral winding 2 in the present application adsorb or release the corresponding spring pin through the first winding shaft 11 and the second winding shaft 21, so that the position of the corresponding spring pin changes, thereby realizing the needle selection of the needle selector.

[0031] Further, in this embodiment, the enameled wire is spirally wound around the outer periphery of the first winding shaft 11 to form a first spiral winding 1, and the enameled wire is spirally wound around the outer periphery of the second winding shaft 21 to form a second spiral winding 2, so that the second spiral winding 2 is spaced apart from the first spiral winding 1, including: At least a portion of the first winding shaft 11 is spaced apart from at least a portion of the second winding shaft 21 so that the enameled wire is spirally wound around the outer periphery of the first winding shaft 11 to form a first spiral winding 1, and the enameled wire is spirally wound around the outer periphery of the second winding shaft 21 to form a second spiral winding 2.

[0032] In the present application, the first spiral winding 1 and the second spiral winding 2 are arranged at intervals so that the first spiral winding 1 can contact different positions of the same spring pin when adsorbing the same spring pin. Therefore, in this example, at least a portion of the first winding shaft 11 and at least a portion of the second winding shaft 21 are arranged in parallel and at intervals, so that the first spiral winding 1 is formed by spirally winding the enameled wire on the outer periphery of the first winding shaft 11; the second spiral winding 2 is formed by spirally winding the enameled wire on the outer periphery of the second winding shaft 21, so that the first spiral winding 1 and the second spiral winding 2 are arranged at intervals.

[0033] Further, in this embodiment, at least a portion of the first winding axis 11 is arranged parallel to and spaced from at least a portion of the second winding axis 21, including: The bottom of the first winding shaft 11 is inserted into the first fixing cavity 31 of the winding base 3 , and the bottom of the second winding shaft 21 is inserted into the second fixing cavity 32 of the winding base 3 . The first fixing cavity 31 and the second fixing cavity 32 are arranged in parallel and spaced apart in the winding base 3 .

[0034] In the present application, the needle selector further includes a winding base 3, in which a first fixed cavity 31 and a second fixed cavity 32 are provided, and the first fixed cavity 31 and the second fixed cavity 32 are arranged in parallel and spaced apart. In the present dual-axis winding method, the bottom of the first winding shaft 11 is inserted into the first fixed cavity 31, and the bottom of the second winding shaft 21 is inserted into the second fixed cavity 32, so that the first winding shaft 11 is fixed by the first fixed cavity 31, and the second winding shaft 21 is fixed by the second fixed cavity 32, so that the first winding shaft 11 and the second winding shaft 21 are arranged in parallel and spaced apart on the winding base 3, and further, at least a portion of the first winding shaft 11 and at least a portion of the second winding shaft 21 are arranged in parallel and spaced apart.

[0035] In this embodiment, the top of the first winding shaft 11 is N-pole after being magnetized, and the top of the second winding shaft 21 is S-pole after being magnetized, including: The permanent magnet 4 is arranged in the winding base 3 so that the bottom end of the first winding shaft 11 is in contact with the N pole of the permanent magnet 4 , and the bottom end of the second winding shaft 21 is in contact with the S pole of the permanent magnet 4 .

[0036] In the present application, the needle selector also includes a permanent magnet 4, which is arranged in the winding base 3. When the first winding shaft 11 and the second winding shaft 21 are arranged in parallel and spaced apart on the winding base 3, the permanent magnet 4 is arranged between the first winding shaft 11 and the second winding shaft 21, so that the bottom end of the first winding shaft 11 is in contact with the N pole of the permanent magnet 4, and the bottom end of the second winding shaft 21 is in contact with the pole of the permanent magnet 4. Therefore, the first winding shaft 11 and the second winding shaft 21 are magnetized by magnetizing through the permanent magnet 4, and the top end of the first winding shaft 11 is the N pole, and the top end of the second winding shaft 21 is the S pole, so that the corresponding spring needle is adsorbed by the magnetic attraction force generated by the first winding shaft 11 and the second winding shaft 21.

[0037] After the first winding shaft 11 and the second winding shaft 21 are magnetized by the permanent magnet 4, it is equivalent to the first winding shaft 11 extending the N pole of the permanent magnet 4, and the second winding shaft 21 extending the S pole of the permanent magnet 4, that is, the first winding shaft 11, the permanent magnet 4 and the second winding shaft 21 are regarded as a whole magnet, the first winding shaft 11 is the N pole of the magnet, and the second winding shaft 21 is the S pole of the magnet.

[0038] The direction of the magnetic flux lines of the magnet is from the N pole to the S pole outside the magnet, that is, outside the magnet, the magnetic flux lines are transmitted from the top of the first winding shaft 11 to the top of the second winding shaft 21 in the air. When the first winding shaft 11 and the second winding shaft 21 are attracted to the spring needle, the spring needle conducts the top of the first winding shaft 11 with the top of the second winding shaft 21, that is, the spring needle conducts the N pole and the S pole of the whole magnet.

[0039] Since the magnetic resistance of the spring needle is much smaller than that of the air, the magnetic flux lines preferentially select the path with the smallest magnetic resistance outside the magnet, so most of the magnetic flux lines are transmitted from the N pole to the S pole in the spring needle, thereby preventing the magnetic flux lines from being scattered outside the magnet and reducing mutual interference with the surrounding magnetic field, and reducing the energy loss of the magnetic flux lines, thereby enhancing the adsorption force of the first winding shaft 11 and the second winding shaft 21 on the spring needle, thereby ensuring the accuracy of needle selection and improving production efficiency.

[0040] In this embodiment, the dual-axis winding method further includes providing a spacer 5 between the first winding shaft 11 and the second winding shaft 21. Specifically, the spacer 5 is provided at one end of the first winding shaft 11 and the second winding shaft 21 away from the permanent magnet 4, that is, the spacer 5 is provided at a position close to the top of the first winding shaft 11 and the second winding shaft 21, so that the first winding shaft 11 and the second winding shaft 21 are isolated from one end of the permanent magnet 4 by the spacer 5. It is foreseeable that: in actual implementation, the spacer 5 can be made of non-magnetic materials, such as copper, aluminum, stainless steel, etc., so that the spacer 5 can isolate the first winding shaft 11 from the second winding shaft 21.

[0041] In the present application, the reason why the first winding shaft 11 and the second winding shaft 21 are isolated from the permanent magnet 4 by the isolation sheet 5 is to prevent the first winding shaft 11 and the second winding shaft 21 from directly contacting each other at their ends away from the permanent magnet 4, thereby preventing the magnetic flux lines from propagating from the position where the first winding shaft 11 and the second winding shaft 21 are in direct contact to the second winding shaft 21 outside the overall magnet formed by the permanent magnet 4, the first winding shaft 11 and the second winding shaft 21, thereby reducing the magnetic flux lines propagating from the spring pin, thereby enhancing the adsorption force of the first winding shaft 11 and the second winding shaft 21 on the spring pin.

[0042] Furthermore, in this embodiment, a permanent magnet 4 is arranged in the winding base 3, so that the bottom end of the first winding shaft 11 is aligned with the N pole of the permanent magnet 4, and the bottom end of the second winding shaft 21 is aligned with the S pole of the permanent magnet 4, including: The permanent magnet 4 is arranged in the third fixed cavity 33 of the winding base 3, the third fixed cavity 33 is located between the first fixed cavity 31 and the second fixed cavity 32, and one end of the third fixed cavity 33 is provided with a first opening connected to the first fixed cavity 31, and the other end is provided with a second opening connected to the second fixed cavity 32, the N pole of the permanent magnet 4 is in contact with the bottom end of the first winding shaft 11 through the first opening, and the S pole is in contact with the bottom end of the second winding shaft 21 through the second opening.

[0043] In the present application, a third fixed cavity 33 is further provided in the winding base 3, and a first opening is provided at one end of the third fixed cavity 33, and the third fixed cavity 33 is connected with the first fixed cavity 31 through the first opening; a second opening is provided at the other end of the third fixed cavity 33, and the third fixed cavity 33 is connected with the second fixed cavity 32 through the second opening.

[0044] The bottom of the first winding shaft 11 is inserted into the first fixed cavity 31, the bottom of the second winding shaft 21 is inserted into the second fixed cavity 32, and the permanent magnet 4 is arranged in the third fixed cavity 33, so that the first winding shaft 11 is fixed by the first fixed cavity 31, the second winding shaft 21 is fixed by the second fixed cavity 32, and the permanent magnet 4 is fixed by the third fixed cavity 33, so that the first winding shaft 11 and the second winding shaft 21 are arranged in parallel and spaced apart on the winding base 3, and the permanent magnet 4 is arranged between the first winding shaft 11 and the second winding shaft 21.

[0045] Since the N pole and S pole of the permanent magnet 4 are respectively arranged at the two ends of the permanent magnet 4, the bottom of the first winding shaft 11 is inserted into the first fixed cavity 31, and the bottom of the second winding shaft 21 is inserted into the second fixed cavity 32. When the permanent magnet 4 is arranged in the third fixed cavity 33, the N pole of the permanent magnet 4 is at one end of the third fixed cavity 33, and fits with the bottom end of the first winding shaft 11 through the first opening; the S pole of the permanent magnet 4 is at the other end of the third fixed cavity 33, and fits with the bottom of the second winding shaft 21 through the second opening, so that the first winding shaft 11, the permanent magnet 4 and the second winding shaft 21 form a U-shaped integral magnet.

[0046] In this embodiment, at least a portion of the first winding axis 11 is arranged parallel to and spaced from at least a portion of the second winding axis 21, including: The first contact surface 111 of the first winding shaft 11 and the second contact surface 211 of the second winding shaft 21 are arranged on the same horizontal plane. The first contact surface 111 is arranged on the top of the first winding shaft 11 , and the second contact surface 211 is arranged on the top of the second winding shaft 21 .

[0047] In the present application, a first contact surface 111 is provided at the top end of the first winding shaft 11, and a second contact surface 211 is provided at the top end of the second winding shaft 21. Outside the integral magnet formed by the permanent magnet 4, the first winding shaft 11 and the second winding shaft 21, magnetic flux lines propagate from the first contact surface 111 to the second contact surface 211 in the air.

[0048] When the first winding shaft 11 and the second winding shaft 21 adsorb the spring pin, the first contact surface 111 and the second contact surface 211 are in contact with the spring pin at the same time, so that the first contact surface 111 and the second contact surface 211 are connected through the spring pin, so that the magnetic flux lines propagating from the first contact surface 111 to the second contact surface 211 propagate inside the spring pin, thereby reducing the dispersion of the magnetic flux lines and the mutual interference with the surrounding magnetic field, and reducing the energy loss of the magnetic flux lines, thereby enhancing the adsorption force of the first winding shaft 11 and the second winding shaft 21 on the spring pin.

[0049] In the present application, when the first winding shaft 11 and the second winding shaft 21 are arranged in parallel and spaced apart on the winding base 3, the first contact surface 111 at the top of the first winding shaft 11 and the second contact surface 211 at the top of the second winding shaft 21 are on the same horizontal plane. As mentioned above, when the first winding shaft 11 and the second winding shaft 21 adsorb the spring pin, the first contact surface 111 and the second contact surface 211 contact the spring pin at the same time.

[0050] Therefore, in the present application, the first contact surface 111 and the second contact surface 211 are arranged on the same horizontal plane so that when the first winding shaft 11 and the second winding shaft 21 adsorb the spring needle, the first contact surface 111 and the second contact surface 211 can better contact with the spring needle, so that the spring needle can better connect the first contact surface 111 and the second contact surface 211, further reduce the dispersion of magnetic flux lines, enhance the adsorption force of the first winding shaft 11 and the second winding shaft 21 on the spring needle, thereby ensuring the accuracy of needle selection and improving production efficiency.

[0051] In this embodiment, the enameled wire is spirally wound around the outer periphery of the first winding shaft 11 to form a first spiral winding 1, and the enameled wire is spirally wound around the outer periphery of the second winding shaft 21 to form a second spiral winding 2, including: The enameled wire is spirally wound around the outer periphery of the first winding shaft 11 from bottom to top to form a first winding 12. The first winding 12 and the first winding shaft 11 wound thereon form a first spiral winding 1. The enameled wire is spirally wound around the outer periphery of the second winding shaft 21 from top to bottom to form a second winding 22 . The second winding 22 and the second winding shaft 21 wound thereon form a second spiral winding 2 .

[0052] In the present application, the first spiral winding 1 is composed of a first winding 12 and a first winding shaft 11, that is, when the enameled wire is spirally wound from bottom to top around the outer periphery of the first winding shaft 11, the first winding 12 is formed around the outer periphery of the first winding shaft 11, so that the first winding 12 and the first winding shaft 11 wound therearound form a first spiral winding 1; the second spiral winding 2 is composed of a second winding 22 and a second winding shaft 21, that is, when the enameled wire is spirally wound from top to bottom around the outer periphery of the second winding shaft 21, the second winding 22 is formed around the outer periphery of the second winding shaft 21, so that the second winding 22 and the second winding shaft 21 wound therearound form a second spiral winding 2.

[0053] Specifically, in this embodiment, the second spiral winding 2 has a current flow direction opposite to that of the first spiral winding 1, the energized first spiral winding 1 is used to demagnetize the first winding shaft 11, and the energized second spiral winding 2 is used to demagnetize the second winding shaft 21, including: The current flowing directions of the first winding 12 and the second winding 22 are opposite. The energized first winding 12 is used to demagnetize the first winding shaft 11 , and the energized second winding 22 is used to demagnetize the second winding shaft 21 .

[0054] Since the first winding 11 and the second winding exhibit opposite polarities after being magnetized, in the present application, the current flow directions of the first winding 12 and the second winding 22 are opposite. When the first winding 12 is energized, the magnetic field formed in the first winding 12 has a magnetic flux line direction opposite to the internal magnetic flux line direction of the first winding 11 after magnetization. Therefore, the magnetic field formed in the first winding 12 and the magnetic field after magnetization of the first winding 11 cancel each other out, thereby reducing the magnetic field strength of the first winding 11 and achieving demagnetization of the first winding 11.

[0055] When the second winding 22 is energized, the magnetic field formed in the second winding 22 has a magnetic flux line direction opposite to the internal magnetic flux line direction of the second winding shaft 21 after magnetization. Therefore, the magnetic field formed in the second winding 22 and the magnetic field of the second winding shaft 21 after magnetization cancel each other out, thereby reducing the magnetic field strength of the second winding shaft 21 and achieving demagnetization of the second winding shaft 21, thereby causing the first winding shaft 11 and the second winding shaft 21 to release the adsorbed spring needles, thereby achieving needle selection of the needle selector.

[0056] In actual implementation, the first winding 12 and the second winding 22 can use the same set of power supply equipment for current flow, or they can use two sets of power supply equipment for current flow. In order to make the structure of the needle selector more compact and reduce production costs, in this application, it is preferred that the first winding 12 and the second winding 22 use the same set of power supply equipment for current flow.

[0057] Therefore, in this embodiment, the enameled wire is spirally wound from bottom to top around the outer periphery of the first winding shaft 11 to form the first winding 12, and the enameled wire is spirally wound from top to bottom around the outer periphery of the second winding shaft 21 to form the second winding 22, including the following steps: Step S1: Winding the enameled wire in a spiral shape from bottom to top around the outer circumference of the first winding shaft 11 to form a first winding 12; Step S2: pulling the enameled wire horizontally to the second winding shaft 21 at the top of the formed first winding 12; Step S3: Wind the enameled wire in a spiral shape from top to bottom around the outer circumference of the second winding shaft 21 to form a second winding 22 .

[0058] In the present application, the first winding 12 and the second winding 22 can be made of the same enameled wire. Specifically, the enameled wire is firstly wound in a spiral shape from bottom to top on the outer periphery of the first winding shaft 11 to form the first winding 12; then, at the top of the first winding 12, the enameled wire is horizontally pulled to the second winding shaft 21, and is wound in a spiral shape from top to bottom on the outer periphery of the second winding shaft 21 to form the second winding 22, thereby realizing the series connection of the first winding 12 and the second winding 22; finally, the head end of the enameled wire is connected to the positive pole of the power supply circuit, and the tail end is connected to the negative pole of the power supply circuit, thereby forming a closed loop, so that the power supply circuit can simultaneously pass current to the first winding 12 and the second winding 22, thereby making the structure of the needle selector more compact and reducing the production cost.

[0059] Since the beginning end of the first winding 12 is located at the bottom of the first winding 12 and the tail end of the second winding 22 is located at the bottom of the second winding 22, it is easier to connect the beginning end of the first winding 12 to the positive pole of the power supply circuit and the tail end of the second winding 22 to the negative pole of the power supply circuit, thereby making the implementation of the dual-axis winding method simpler and more convenient, and further improving production efficiency.

[0060] Since the tail end of the first winding 12 is located at the top of the first winding 12 and the head end of the second winding 22 is located at the top of the second winding 22, the first winding 12 and the second winding 22 are connected in series at the top of the first winding 12 and the top of the second winding 22, which can not only reduce the use of enameled wire, thereby reducing production costs, but also make the series connection of the first winding 12 and the second winding 22 simpler, further making the implementation of the dual-axis winding method simple and convenient, and improving production efficiency.

[0061] Furthermore, in this embodiment, the enameled wire is spirally wound from bottom to top on the outer periphery of the first winding shaft 11 to form the first winding 12, and the enameled wire is spirally wound from top to bottom on the outer periphery of the second winding shaft 21 to form the second winding 22, and the following steps are also included: Step S4: Pull the enameled wire horizontally to the first winding shaft 11 at the bottom of the formed first winding 12, so that the head end of the first winding 12 and the tail end of the second winding 22 are routed on the same side.

[0062] In the present application, when the first winding 12 and the second winding 22 are manufactured, the first winding 12 is formed by firstly winding the enameled wire in a spiral shape from bottom to top on the outer periphery of the first winding shaft 11; then, at the top of the first winding 12, the enameled wire is horizontally pulled to the second winding shaft 21, and is spirally wound from top to bottom on the outer periphery of the second winding shaft 21 to form the second winding 22, thereby realizing the series connection of the first winding 12 and the second winding 22; Finally, at the bottom of the formed second winding 22, the enameled wire is pulled horizontally to the first winding shaft 11 so that the tail end and the head end of the enameled wire are on the same side. Therefore, the head end of the enameled wire is connected to the positive pole of the power supply circuit on the same side, and the tail end is connected to the negative pole of the power supply circuit. This can make the connection between the enameled wire and the power supply circuit simpler and more convenient, easier to implement, and the routing of the power supply circuit more regular, thereby making the implementation of the dual-axis winding method simpler and more convenient, and further improving production efficiency.

[0063] Since the direction of the magnetic field lines of flux formed in the energized coil is related to the winding direction of the current in the energized coil, it is worth noting that in actual implementation: when the first winding 12 is wound from bottom to top around the outer circumference of the first winding shaft 11 and the second winding 22 is wound from top to bottom around the outer circumference of the second winding shaft 21, it is necessary to design the connection direction of the current in the first winding 12 and the second winding 22 according to the right-hand spiral rule, so that the direction of the magnetic field lines of flux formed in the first winding 12 and the second winding 22 is the above-mentioned direction.

[0064] Further, in the present embodiment, the head end of the first winding 12 and the tail end of the second winding 22 are routed in a routing groove 34 on one side of the winding base 3. In the present application, a routing groove 34 is provided on one side of the winding base 3, and when the tail end of the second winding 22 extends to the side where the head end of the first winding 12 is located, the head end of the first winding 12 and the tail end of the second winding 22 are both routed through the routing groove 34, and the head end of the first winding 12 and the tail end of the second winding 22 are limited by the routing groove 34, so that the routing of the first winding 12 and the second winding 22 is more regular, further making the implementation of the present dual-axis winding method simpler and more convenient, and improving production efficiency.

[0065] The contents described above may be implemented individually or in combination in various ways, and these variations are all within the protection scope of the present invention.

[0066] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-axis winding method for a needle selector, characterized in that: The method comprises the following steps: The enameled wire is wound in a spiral shape around the outer circumference of a first winding shaft (11) to form a first spiral winding (1), wherein the first winding shaft (11) is magnetized so that the top end thereof is an N pole, and the first spiral winding (1) is energized to demagnetize the first winding shaft (11); The enameled wire is spirally wound around the outer circumference of a second winding shaft (21) to form a second spiral winding (2), so that the second spiral winding (2) and the first spiral winding (1) are arranged at an interval, the top end of the second winding shaft (21) is an S pole after being magnetized, the second spiral winding (2) and the first spiral winding (1) have current flowing in opposite directions, and the second spiral winding (2) is energized to demagnetize the second winding shaft (21).

2. A dual-axis winding method for a needle selector according to claim 1, characterized in that: The enameled wire is spirally wound around the outer circumference of a first winding shaft (11) to form a first spiral winding (1), and the enameled wire is spirally wound around the outer circumference of a second winding shaft (21) to form a second spiral winding (2), so that the second spiral winding (2) is spaced apart from the first spiral winding (1), comprising: At least a portion of the first winding shaft (11) and at least a portion of the second winding shaft (21) are arranged in parallel and spaced apart, so that the enameled wire is spirally wound around the outer circumference of the first winding shaft (11) to form the first spiral winding (1), and the enameled wire is spirally wound around the outer circumference of the second winding shaft (21) to form the second spiral winding (2).

3. A dual-axis winding method for a needle selector according to claim 2, characterized in that: Disposing at least a portion of the first winding axis (11) and at least a portion of the second winding axis (21) in parallel and spaced relation, comprising: The bottom of the first winding shaft (11) is inserted into a first fixed cavity (31) of a winding base (3), and the bottom of the second winding shaft (21) is inserted into a second fixed cavity (32) of the winding base (3), wherein the first fixed cavity (31) and the second fixed cavity (32) are arranged in parallel and spaced apart in the winding base (3).

4. A dual-axis winding method for a needle selector according to claim 3, characterized in that: The first winding shaft (11) has an N-pole at the top after being magnetized, and the second winding shaft (21) has an S-pole at the top after being magnetized, comprising: A permanent magnet (4) is arranged in the winding base (3), so that the bottom end of the first winding shaft (11) fits with the N pole of the permanent magnet (4), and the bottom end of the second winding shaft (21) fits with the S pole of the permanent magnet (4).

5. A dual-axis winding method for a needle selector according to claim 4, characterized in that: A permanent magnet (4) is arranged in the winding base (3), so that the bottom end of the first winding shaft (11) is in contact with the N pole of the permanent magnet (4), and the bottom end of the second winding shaft (21) is in contact with the S pole of the permanent magnet (4), comprising: The permanent magnet (4) is arranged in a third fixed cavity (33) of the winding base (3); the third fixed cavity (33) is located between the first fixed cavity (31) and the second fixed cavity (32); one end of the third fixed cavity (33) is provided with a first opening communicating with the first fixed cavity (31); the other end of the third fixed cavity (33) is provided with a second opening communicating with the second fixed cavity (32); the N pole of the permanent magnet (4) is in contact with the bottom end of the first winding shaft (11) through the first opening; and the S pole is in contact with the bottom end of the second winding shaft (21) through the second opening.

6. A dual-axis winding method for a needle selector according to claim 2, characterized in that: Disposing at least a portion of the first winding axis (11) and at least a portion of the second winding axis (21) in parallel and spaced relation, comprising: The first contact surface (111) of the first winding shaft (11) and the second contact surface (211) of the second winding shaft (21) are arranged on the same horizontal plane, the first contact surface (111) is arranged on the top of the first winding shaft (11), and the second contact surface (211) is arranged on the top of the second winding shaft (21).

7. A dual-axis winding method for a needle selector according to claim 1, characterized in that: The enameled wire is spirally wound around the outer circumference of a first winding shaft (11) to form a first spiral winding (1), and the enameled wire is spirally wound around the outer circumference of a second winding shaft (21) to form a second spiral winding (2), comprising: Winding the enameled wire in a spiral shape from bottom to top around the outer circumference of the first winding shaft (11) to form a first winding wire (12), the first winding wire (12) and the first winding shaft (11) around which the first winding wire (12) is wound forming the first spiral winding (1); The enameled wire is spirally wound from top to bottom around the outer circumference of the second winding shaft (21) to form a second winding wire (22); the second winding wire (22) and the second winding shaft (21) around which the second winding wire is wound form the second spiral winding (2).

8. A dual-axis winding method for a needle selector according to claim 7, characterized in that: The second spiral winding (2) has a current flow direction opposite to that of the first spiral winding (1); the first spiral winding (1) that is energized is used to demagnetize the first winding shaft (11); and the second spiral winding (2) that is energized is used to demagnetize the second winding shaft (21), comprising: The first winding (12) and the second winding (22) have current flowing in opposite directions; the first winding (12) that is energized is used to demagnetize the first winding shaft (11); and the second winding (22) that is energized is used to demagnetize the second winding shaft (21).

9. A dual-axis winding method for a needle selector according to claim 8, characterized in that Winding the enameled wire in a spiral shape from bottom to top around the outer circumference of the first winding shaft (11) to form a first winding (12), and winding the enameled wire in a spiral shape from top to bottom around the outer circumference of the second winding shaft (21) to form a second winding (22), comprising the following steps: Step S1: winding the enameled wire in a spiral shape from bottom to top around the outer circumference of the first winding shaft (11) to form the first winding wire (12); Step S2: pulling the enameled wire horizontally to the second winding shaft (21) at the top of the formed first winding (12); Step S3: Winding the enameled wire in a spiral shape from top to bottom around the outer circumference of the second winding shaft (21) to form the second winding wire (22).

10. A dual-axis winding method for a needle selector according to claim 9, characterized in that: The enameled wire is spirally wound from bottom to top around the outer circumference of the first winding shaft (11) to form a first winding (12), and the enameled wire is spirally wound from top to bottom around the outer circumference of the second winding shaft (21) to form a second winding (22), further comprising the following steps: Step S4: pulling the enameled wire horizontally to the first winding shaft (11) at the bottom of the formed first winding (12), so that the head end of the first winding (12) and the tail end of the second winding (22) are arranged on the same side.

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