Double-shaft winding structure of needle selector

Abstract

The invention discloses a double-shaft winding structure of a needle selector. Relates to the technical field of needle selectors. The winding specifically comprises a first spiral winding and a second spiral winding, the first spiral winding is provided with a first winding shaft, the second spiral winding is provided with a second winding shaft, and at least part of the first winding shaft and at least part of the second winding shaft are arranged in parallel at intervals; the through-flow directions of the first spiral winding and the second spiral winding are opposite, the electrified first spiral winding demagnetizes the first winding shaft, and the electrified second spiral winding demagnetizes the second winding shaft. The top end of the first winding shaft is N pole after the first winding shaft is magnetized, the top end of the first winding shaft is S pole after the first winding shaft is magnetized, and when the first winding shaft and the second winding shaft attract the spring needle, the spring needle conducts the first winding shaft and the second winding shaft, so that magnetic induction lines outside the first winding shaft and the second winding shaft are spread in the spring needle; therefore, the magnetic field interference with the surrounding magnetic bars can be reduced, the energy loss of magnetic induction lines can be reduced, the accuracy of needle selection is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of needle selectors, and in particular to a double-axis winding structure of 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 winding structure corresponding to the number of spring needles of the knitting machine. Through the magnetization or demagnetization of the corresponding winding structure, the corresponding elastic needle is adsorbed or released, thereby achieving the purpose of needle selection.

[0004] In the prior art, for a single spring needle, the needle selector winding structure 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 structure attracts or releases the corresponding spring needle, it is easy to produce a large magnetic force effect on the surrounding winding structure and spring needle, which may cause needle selection errors, and then cause knitting errors, affecting production efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a dual-axis winding structure for a needle selector in view of the deficiencies of the above-mentioned prior art, which can reduce the magnetic interference between the winding structures, thereby ensuring the accuracy of needle selection and improving production efficiency.

[0006] The present invention proposes a dual-axis winding structure of a needle selector, including a first spiral winding and a second spiral winding, the first spiral winding having a first winding axis, the second spiral winding having a second winding axis, at least a portion of the first winding axis is parallel to and spaced from at least a portion of the second winding axis; after the first winding axis is magnetized, the top end is an N pole, and after the second winding axis is magnetized, the top end is an S pole, the current flow directions of the first spiral winding and the second spiral winding are opposite, the first spiral winding that is energized demagnetizes the first winding axis, and the second spiral winding that is energized demagnetizes the second winding axis.

[0007] Furthermore, the first spiral winding further comprises a first winding wire, which is spirally wound around the outer circumference of the first winding shaft, and the second spiral winding further comprises a second winding wire, which is spirally wound around the outer circumference of the second winding shaft.

[0008] Furthermore, the head end of the first winding is connected to the positive pole of the power supply circuit, the tail end of the second winding is connected to the negative pole of the power supply circuit, and the dual-axis winding structure also includes a connecting wire for connecting the first winding and the second winding in series, one end of the connecting wire is connected to the tail end of the first winding, and the other end is connected to the head end of the second winding.

[0009] Furthermore, the first winding wire, the second winding wire and the connecting wire are the same enameled wire.

[0010] Furthermore, the first winding is spirally wound around the outer circumference of the first winding shaft from bottom to top, and the second winding is spirally wound around the outer circumference of the first winding shaft from top to bottom.

[0011] Furthermore, the tail end of the second winding extends to the side where the head end of the first winding is located, so that the tail end of the second winding and the head end of the first winding are routed on the same side.

[0012] Furthermore, the dual-axis winding structure also includes a permanent magnet disposed between the first spiral winding and the second spiral winding, 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.

[0013] Furthermore, the dual-axis winding structure further includes an isolation sheet disposed between the first spiral winding and the second spiral winding, and the isolation sheet isolates the first winding axis from the second winding axis.

[0014] Furthermore, a first contact surface is provided at the top end of the first winding shaft, and a second contact surface is provided at the top end of the second winding shaft, and the first contact surface and the second contact surface are on the same horizontal plane.

[0015] Further, the first winding axis includes a main body portion arranged parallel to and spaced apart from the second winding axis, an inclined portion inclined toward the second winding axis, and an extension portion arranged parallel to and spaced apart from the second winding axis, the inclined portion is arranged at the top of the main body portion, the extension portion is arranged at the top of the inclined portion, and the first contact surface is arranged at the top of the extension portion.

[0016] The present invention also provides a dual-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.

[0017] 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.

[0018] 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.

[0019] 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 around which the first winding wire is wound 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] The dual-axis winding structure of a needle selector proposed by the present invention has the following beneficial effects: (1) The dual-axis winding structure includes a first spiral winding and a second spiral winding, wherein the first spiral winding has a first winding axis, and the second spiral winding has a second winding axis. Since the top end of the first winding axis is N-pole after being magnetized, and the top end of the first winding axis is S-pole after being magnetized, when the first winding axis and the second winding axis adsorb the spring needle, the spring needle conducts the first winding axis and the second winding axis, so that the magnetic flux lines outside the first winding axis and the second winding axis 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; (2) The first spiral winding of the dual-axis winding structure further comprises a first winding, which is spirally wound around the outer periphery of the first winding shaft, and the second spiral winding further comprises a second winding, which is spirally wound around the outer periphery of the second winding shaft. Since the flow directions of the first winding and the second winding are opposite, the first winding shaft is demagnetized by energizing the first winding, and the second winding shaft is demagnetized by energizing the second winding, so that the first winding shaft and the second winding shaft release the adsorbed spring needles at the same time, thereby realizing the needle selection of the needle selector; (3) The dual-axis winding structure further includes a connecting wire, one end of which is connected to the tail end of the first winding and the other end is connected to the head end of the second winding, so that the first winding and the second winding are connected in series, thereby enabling the power supply circuit to pass current to the first winding and the second winding at the same time, making the structure of the needle selector more compact and reducing the production cost; (4) The same enameled wire can be used for the production of the first winding and the second winding of the dual-axis winding structure, as well as the connection of the first winding and the second winding in series by the connecting wire, 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; (5) The tail end of the second winding of the dual-axis winding structure extends to the side where the head end of the first winding is located, so that the tail end of the second winding is located on the same side as the head end of the first winding. Therefore, the head end of the first winding is connected to the positive electrode of the power supply circuit, and the tail end of the second winding is connected to the negative electrode of the power supply circuit on the same side. This can make the connection between the first winding and the second winding and the power supply circuit simpler and more convenient, and easy to implement. The routing of the power supply circuit is more regular, thereby making the implementation of the dual-axis winding structure simpler and more convenient, and further improving production efficiency. (6) The dual-axis winding structure also includes a permanent magnet. 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 magnetic bars and reducing the energy loss of the magnetic flux lines, thereby ensuring the accuracy of needle selection and improving production efficiency. (7) The top of the first winding shaft of the dual-axis winding structure is provided with a first contact surface, and the top of the second winding shaft is provided with a second contact surface. The first contact surface and the second contact surface are arranged on the same horizontal plane, so that when the first winding shaft and the second winding shaft adsorb the spring pin, the first contact surface and the second contact surface are better in contact with the spring pin, and then the spring pin better conducts the first contact surface with the second contact surface, further reducing the dispersion of the magnetic flux lines and enhancing the adsorption force of the first winding shaft and the second winding shaft on the spring pin; (8) The first winding axis of the dual-axis winding structure includes a main body, an inclined portion and an extension portion. The inclined portion is inclined at the top of the main body toward the direction of the second winding axis. The extension portion is arranged at the top of the inclined portion, so that the distance between the extension portion and the second winding axis is smaller than the distance between the main body and the second winding axis. The first contact surface is arranged at the top of the extension portion, thereby reducing the distance between the first contact surface and the second contact surface, thereby ensuring that the first contact surface and the second contact surface can both come into contact with different positions of the spring pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In the accompanying drawings, like reference numerals are used to represent like elements.

[0025] Figure 1 A schematic structural diagram of a dual-axis winding structure of a needle selector according to an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a first spiral winding of a double-axis winding structure of a needle selector according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a second spiral winding of a double-axis winding structure of a needle selector according to an embodiment of the present invention; Figure 4 It is a schematic structural diagram of the first winding axis of a dual-axis winding structure of a needle selector according to an embodiment of the present invention.

[0026] In the figure: 1. first spiral winding; 11. first winding axis; 111. main body; 112. inclined portion; 113. extension portion; 1131. first contact surface; 12. first winding; 2. second spiral winding; 21. second winding axis; 211. second contact surface; 22. second winding; 3. connecting wire; 4. permanent magnet; 5. isolation plate. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1 to Figure 4 A dual-axis winding structure of a needle selector according to an embodiment of the present invention comprises a first spiral winding 1 and a second spiral winding 2, wherein the first spiral winding 1 has a first winding axis 11, and the second spiral winding 2 has a second winding axis 21, and 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; after the first winding axis 11 is magnetized, the top end is an N pole, and after the second winding axis 21 is magnetized, the top end is an S pole, wherein the first winding axis 11 and the second winding axis 21 can adopt magnetic bars; the current flow directions of the first spiral winding 1 and the second spiral winding 2 are opposite, and the energized first spiral winding 1 demagnetizes the first winding axis 11, and the energized second spiral winding 2 demagnetizes the second winding axis 21.

[0029] In the present application, the dual-axis winding structure includes a first spiral winding 1 and a second spiral winding 2, wherein the first spiral winding 1 has a first winding axis 11, the second spiral winding 2 has a second winding axis 21, and at least a portion of the first winding axis 11 is arranged in parallel and spaced apart from at least a portion of the second winding axis 21. Since the top of the first winding axis 11 is an N pole after being magnetized, and the top of the second winding axis 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 first winding axis 11 and the second winding axis 21, thereby achieving the attraction of the corresponding spring pins.

[0030] Since the direction of the magnetic flux lines of the 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 structure 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 structure attracts or releases the corresponding spring needle, it is easy to produce a large magnetic force effect on the surrounding winding structure and spring needle, which may lead to needle selection errors, and then cause weaving errors, affecting production efficiency.

[0031] 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 adsorb 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.

[0032] 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 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] In one embodiment, initially, the first winding shaft 11 and the second winding shaft 21 do not adsorb the corresponding spring needle, and the spring needle is in a non-working position; when selecting needles, the first winding shaft 11 and the second winding shaft 21 adsorb the corresponding spring needle, so that the spring needle moves from the non-working position to the working position to perform weaving operations; after the work is completed, the first spiral winding 1 and the second spiral winding 2 are energized, and the first winding shaft 11 and the second winding shaft 21 release the corresponding spring needle, so that the spring needle returns to the non-working position and waits for the next weaving operation.

[0039] In another embodiment, initially, the first winding shaft 11 and the second winding shaft 21 absorb the corresponding spring needle, and the spring needle is in a non-working position; when selecting needles, the first spiral winding 1 and the second spiral winding 2 are energized, and the first winding shaft 11 and the second winding shaft 21 loosen the corresponding spring needle, so that the spring needle moves from the non-working position to the working position to perform weaving operations; after the work is completed, the first spiral winding 1 and the second spiral winding 2 are de-energized, and the first winding shaft 11 and the second winding shaft 21 absorb the corresponding spring needle, so that the spring needle returns to the non-working position and waits for the next weaving operation.

[0040] The above two implementations can be selected according to actual production needs. The needle selector of the present application is suitable for glove knitting machines, flat knitting machines, collar weaving machines and other flat knitting machines, that is, the first spiral winding 1 and the second spiral winding 2 of the double-axis winding structure can simultaneously adsorb or release the corresponding spring needles of glove knitting machines, flat knitting machines, collar weaving machines and other flat knitting machines through the first winding shaft 11 and the second winding shaft 21, so as to realize the needle selection of glove knitting machines, flat knitting machines, collar weaving machines and other flat knitting machines.

[0041] Specifically, in this embodiment, the first spiral winding 1 further comprises a first winding 12, which is spirally wound around the outer periphery of the first winding shaft 11; the second spiral winding 2 further comprises a second winding 22, which is spirally wound around the outer periphery of the second winding shaft 21. Since the first winding shaft 11 and the second winding exhibit opposite polarities after being magnetized, in this application, the flow directions of the first winding 12 and the second winding 22 are opposite.

[0042] 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 shaft 11 after magnetization. Therefore, the magnetic field formed in the first winding 12 and the magnetic field of the first winding shaft 11 after magnetization cancel each other out, thereby reducing the magnetic field strength of the first winding shaft 11 and achieving demagnetization of the first winding shaft 11.

[0043] 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.

[0044] 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.

[0045] In this embodiment, the dual-axis winding structure further includes a connecting wire 3, one end of which is connected to the tail end of the first winding 12 and the other end is connected to the head end of the second winding 22, so that the first winding 12 and the second winding 22 are connected in series. The head end of the first winding 12 is connected to the positive electrode of the power supply circuit, and the tail end of the second winding 22 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 12 and the second winding 22 at the same time, thereby making the structure of the needle selector more compact and reducing the production cost.

[0046] Furthermore, in the present embodiment, the first winding 12, the connecting wire 3 and the second winding 22 can be made of the same enameled wire, that is, the enameled wire is firstly wound in a spiral shape on the outer periphery of the first winding shaft 11 to form the first winding 12; the enameled wire is then pulled horizontally to the second winding shaft 21, and is wound in a spiral shape 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 electrode of the power supply circuit, and the tail end is connected to the negative electrode 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.

[0047] By manufacturing the first winding 12 and the second winding 22 and connecting the first winding 12 and the second winding 22 in this way, the use of enameled wire can be reduced, thereby reducing production costs, and the series connection of the first winding 12 and the second winding 22 is simpler, thereby making the implementation of the dual-axis winding structure simpler and more convenient, further improving production efficiency.

[0048] Specifically, in this embodiment, the first winding 12 is spirally wound around the outer circumference of the first winding shaft 11 from bottom to top, and the second winding 22 is spirally wound around the outer circumference of the first winding shaft 11 from top to bottom, that is, the head end of the first winding 12 is located at the bottom of the first winding 12, and the tail end is located at the top of the first winding 12; the head end of the second winding 22 is located at the top of the second winding 22, and the tail end is located at the bottom of the second winding 22.

[0049] Therefore, when the first winding 12 and the second winding 22 are manufactured and connected in series, the enameled wire is firstly spirally wound 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 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, the head end of the enameled wire is connected to the positive electrode of the power supply circuit, and the tail end 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 12 and the second winding 22 at the same time.

[0050] 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 structure simpler and more convenient, and further improving production efficiency.

[0051] 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 structure simple and convenient, and improving production efficiency.

[0052] Furthermore, in the present embodiment, the tail end of the second winding 22 extends to the side where the head end of the first winding 12 is located. Specifically, when the first winding 12, the connecting wire 3, and the second winding 22 are made of the same enameled wire, 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, 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 located 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 structure simpler and more convenient, and further improving production efficiency.

[0053] 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.

[0054] In this embodiment, the dual-axis winding structure also includes a permanent magnet 4, which is arranged between the first spiral winding 1 and the second spiral winding 2, wherein the bottom end of the first winding axis 11 of the first spiral winding 1 is in contact with the N pole of the permanent magnet 4, so that through the permanent magnet 4, the first winding axis 11 is magnetized to have an N pole at the top; the bottom end of the second winding axis 21 of the second spiral winding 2 is in contact with the S pole of the permanent magnet 4, so that through the permanent magnet 4, the second winding axis 21 is magnetized to have an S pole at the top.

[0055] Therefore, 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.

[0056] 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.

[0057] 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.

[0058] In this embodiment, the first winding shaft 11 and the second winding shaft 21 both extend in the vertical direction and are arranged at intervals. The bottom end of the first winding shaft 11 contacts the N pole of the permanent magnet 4, so that after the first winding shaft 11 is magnetized by the permanent magnet 4, the N pole of the permanent magnet 4 is extended vertically upward; the bottom end of the second winding shaft 21 contacts the S pole of the permanent magnet 4, so that after the second winding shaft 21 is magnetized by the permanent magnet 4, the S pole of the permanent magnet 4 is extended vertically upward.

[0059] A first contact surface 1131 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 1131 to the second contact surface 211 in the air.

[0060] When the first winding shaft 11 and the second winding shaft 21 adsorb the spring pin, the first contact surface 1131 and the second contact surface 211 are in contact with the spring pin at the same time, so that the first contact surface 1131 and the second contact surface 211 are connected through the spring pin, so that the magnetic flux lines transmitted from the first contact surface 1131 to the second contact surface 211 are transmitted inside the spring pin, thereby reducing the dispersion of the magnetic flux lines and the mutual interference with the surrounding magnetic field, reducing the energy loss of the magnetic flux lines, and enhancing the adsorption force of the first winding shaft 11 and the second winding shaft 21 on the spring pin.

[0061] In the present application, the first contact surface 1131 and the second contact surface 211 are arranged 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 1131 and the second contact surface 211 contact the spring pin at the same time.

[0062] Therefore, in the present application, the first contact surface 1131 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 1131 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 1131 with 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.

[0063] In this embodiment, the dual-axis winding structure further includes a spacer 5, which is disposed between the first spiral winding 1 and the second spiral winding 2. Specifically, the spacer 5 is disposed 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 disposed at a position close to the top of the first winding shaft 11 and the second winding shaft 21, so that the ends of the first winding shaft 11 and the second winding shaft 21 away from the permanent magnet 4 are isolated by the spacer 5. It can be foreseen 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 and the second winding shaft 21.

[0064] 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 with each other outside the overall magnet formed by the permanent magnet 4, the first winding shaft 11 and the second winding shaft 21 to 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.

[0065] In this embodiment, the first winding axis 11 includes a main body portion 111, an inclined portion 112 and an extension portion 113. The main body portion 111 is arranged parallel to and spaced apart from the second winding axis 21, and the extension portion 113 is also arranged parallel to and spaced apart from the second winding axis 21. The inclined portion 112 is arranged at the top of the main body portion 111, and the extension portion 113 is arranged at the top of the inclined portion 112, so that the extension portion 113 is connected to the main body portion 111 through the inclined portion 112.

[0066] In the present application, the main body 111, the inclined portion 112 and the extension portion 113 are an integrated structure, so that the bottom end of the main body 111 contacts the N pole of the permanent magnet 4, so that after the first winding shaft 11 is magnetized by the permanent magnet 4, the top of the extension portion 113 is the N pole.

[0067] The first contact surface 1131 is disposed on the top of the extension portion 113, and the extension portion 113 vertically extends upward on the top of the inclined portion 112, so that the first contact surface 1131 and the second contact surface 211 are on the same horizontal plane, so that the first contact surface 1131 and the second contact surface 211 can better contact with the spring pin.

[0068] Due to the small size of the spring pin, in order to prevent the first contact surface 1131 and the second contact surface 211 from being unable to contact different positions of the spring pin at the same time, in the present application, the inclined portion 112 is inclined toward the second winding axis 21 at the top of the main body 111, so that the distance between the extension portion 113 and the second winding axis 21 is smaller than the distance between the main body 111 and the second winding axis 21, thereby reducing the distance between the first contact surface 1131 and the second contact surface 211, ensuring that the first contact surface 1131 and the second contact surface 211 can both come into contact with different positions of the spring pin.

[0069] In actual implementation, the spacer 5 can be disposed between the extension portion 113 and the second winding axis 21, so that the spacer 5 isolates the extension portion 113 from the second winding axis 21, thereby isolating the first winding axis 11 from the second winding axis 21. Since the distance between the extension portion 113 and the second winding axis 21 is smaller than the distance between the main body 111 and the second winding axis 21, compared with the case where the spacer 5 is disposed between the main body 111 and the second winding axis 21, the thickness of the spacer 5 can be reduced by disposing the spacer 5 between the extension portion 113 and the second winding axis 21, thereby reducing the production cost.

[0070] 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.

[0071] 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.

[0072] 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 double-axis winding structure of a needle selector, characterized in that: The invention comprises a first spiral winding (1) and a second spiral winding (2), wherein the first spiral winding (1) has a first winding axis (11), and the second spiral winding (2) has a second winding axis (21), and at least a portion of the first winding axis (11) and at least a portion of the second winding axis (21) are arranged in parallel and spaced apart from each other; after the first winding axis (11) is magnetized, the top end thereof is an N pole, and after the second winding axis (21) is magnetized, the top end thereof is an S pole, and the current passing directions of the first spiral winding (1) and the second spiral winding (2) are opposite, and the first spiral winding (1) which is energized causes the first winding axis (11) to be demagnetized, and the second spiral winding (2) which is energized causes the second winding axis (21) to be demagnetized.

2. A double-axis winding structure of a needle selector as claimed in claim 1, characterized in that: The first spiral winding (1) further comprises a first winding wire (12), the first winding wire (12) being spirally wound around the outer circumference of the first winding shaft (11), and the second spiral winding (2) further comprises a second winding wire (22), the second winding wire (22) being spirally wound around the outer circumference of the second winding shaft (21).

3. A double-axis winding structure of a needle selector as claimed in claim 2, characterized in that: The head end of the first winding (12) is connected to the positive pole of the power supply circuit, and the tail end of the second winding (22) is connected to the negative pole of the power supply circuit. The dual-axis winding structure also includes a connecting wire (3) for connecting the first winding (12) and the second winding (22) in series, one end of the connecting wire (3) is connected to the tail end of the first winding (12), and the other end is connected to the head end of the second winding (22).

4. A double-axis winding structure of a needle selector as claimed in claim 3, characterized in that: The first winding wire (12), the second winding wire (22) and the connecting wire (3) are the same enameled wire.

5. A double-axis winding structure of a needle selector as claimed in claim 2, characterized in that: The first winding wire (12) is spirally wound around the outer circumference of the first winding shaft (11) from bottom to top, and the second winding wire (22) is spirally wound around the outer circumference of the first winding shaft (11) from top to bottom.

6. A double-axis winding structure of a needle selector as claimed in claim 5, characterized in that: The tail end of the second winding (22) extends to the side where the head end of the first winding (12) is located, so that the tail end of the second winding (22) and the head end of the first winding (12) are routed on the same side.

7. A double-axis winding structure of a needle selector as claimed in claim 1, characterized in that: The dual-axis winding structure further comprises a permanent magnet (4) arranged between the first spiral winding (1) and the second spiral winding (2), the bottom end of the first winding shaft (11) being in contact with the N pole of the permanent magnet (4), and the bottom end of the second winding shaft (21) being in contact with the S pole of the permanent magnet (4).

8. A double-axis winding structure of a needle selector as claimed in claim 1, characterized in that: The dual-axis winding structure further comprises an isolation sheet (5) arranged between the first spiral winding (1) and the second spiral winding (2), wherein the isolation sheet (5) isolates the first winding axis (11) from the second winding axis (21).

9. A double-axis winding structure of a needle selector as claimed in claim 1, characterized in that: A first contact surface (1131) 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), wherein the first contact surface (1131) and the second contact surface (211) are on the same horizontal plane.

10. A double-axis winding structure of a needle selector as claimed in claim 9, characterized in that: The first winding axis (11) comprises a main body portion (111) arranged parallel to and spaced from the second winding axis (21), an inclined portion (112) inclined in the direction of the second winding axis (21), and an extension portion (113) arranged parallel to and spaced from the second winding axis (21), wherein the inclined portion (112) is arranged at the top of the main body portion (111), the extension portion (113) is arranged at the top of the inclined portion (112), and the first contact surface (1131) is arranged at the top of the extension portion (113).

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