Needle selection seat structure of needle selector

Abstract

The invention relates to a needle selection seat structure of a needle selector. Relates to the technical field of needle selectors. The device specifically comprises a plurality of magnetic rod assemblies and a mounting seat, wherein the plurality of magnetic rod assemblies are arranged on the mounting seat in a staggered manner; the magnetic bar assembly comprises a first magnetic bar and a second magnetic bar which are arranged at an interval, a first coil arranged on the first magnetic bar and a second coil arranged on the second magnetic bar, the top end of the magnetized first magnetic bar is an N pole, the top end of the magnetized second magnetic bar is an S pole, and the through-flow directions of the first coil and the second coil are opposite. The top end of the first magnetic bar is N pole after being magnetized, the top end of the second magnetic bar is S pole after being magnetized, the top end of the first magnetic bar and the top end of the second magnetic bar are conducted through the spring needle, magnetic induction lines outside the first magnetic bar and the second magnetic bar are spread in the spring needle, and therefore magnetic field interference with surrounding magnetic bar assemblies can be reduced; and the energy loss of magnetic induction lines can be reduced, so that the needle selection accuracy 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 needle selector seat 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 number of magnetic bars corresponding to the spring needles of the knitting machine. By magnetizing or demagnetizing the corresponding magnetic bars, 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 number of needle selector magnetic bars used is also single, and with a single magnetic pole, the magnetic flux loop is stray and the magnetic fields interfere with each other greatly. When the magnetic bar attracts or releases the corresponding spring needle, it is easy to produce a large magnetic force effect on the surrounding magnetic bars and spring needles, which may lead to needle selection errors, and then cause weaving errors, affecting production efficiency. Summary of the invention

[0005] The object of the present invention is to provide a needle selection seat structure of a needle selector to address the deficiencies of the above-mentioned prior art, which can reduce the magnetic interference between magnetic bars, thereby ensuring the accuracy of needle selection and improving production efficiency.

[0006] The present invention proposes a needle selection seat structure of a needle selector, comprising a plurality of magnetic bar assemblies and a mounting seat for mounting the plurality of magnetic bar assemblies, wherein the plurality of magnetic bar assemblies are staggeredly arranged on the mounting seat; the magnetic bar assemblies comprise a first magnetic bar and a second magnetic bar arranged at intervals, a first coil arranged on the first magnetic bar, and a second coil arranged on the second magnetic bar, wherein the top end of the first magnetic bar is an N pole after being magnetized, and the top end of the second magnetic bar is an S pole after being magnetized, and the current flow directions of the first coil and the second coil are opposite, the first coil that is energized demagnetizes the first magnetic bar, and the second coil that is energized demagnetizes the second magnetic bar.

[0007] Furthermore, a accommodating cavity for accommodating the plurality of magnetic bar assemblies is provided in the mounting base, the top of the accommodating cavity is provided with a plurality of magnetic bar extension openings, and the bottom is provided with a plurality of magnetic bar positioning grooves, the plurality of magnetic bar extension openings are used for respectively allowing the tops of the plurality of magnetic bar assemblies to extend out, and the plurality of magnetic bar positioning grooves are used for respectively limiting the bottoms of the plurality of magnetic bar assemblies.

[0008] Further, the mounting seat includes a first seat body and a second seat body which are assembled with each other, a first half cavity is provided in the first seat body, a second half cavity is provided in the second seat body, the first half cavity and the second half cavity are assembled to form the accommodating cavity, the multiple magnetic rod extension openings arranged at the top of the first half cavity are respectively staggered with the multiple magnetic rod extension openings arranged at the top of the second half cavity, and the multiple magnetic rod positioning grooves arranged at the bottom of the first half cavity are staggered with the multiple magnetic rod positioning grooves arranged at the bottom of the second half cavity.

[0009] Furthermore, one end of the multiple magnetic bar extension openings arranged at the top of the first half chamber and the second half chamber is open, and one end of the multiple magnetic bar positioning grooves arranged at the bottom of the first half chamber and the second half chamber is open. The top of the magnetic bar assembly is slidably inserted into the magnetic bar extension opening from the opening of the magnetic bar extension opening, and the bottom of the magnetic bar assembly is slidably inserted into the magnetic bar positioning groove from the opening of the magnetic bar positioning groove.

[0010] Furthermore, the magnetic bar assembly also includes a magnetic bar base and a permanent magnet arranged in the magnetic bar base, the first magnetic bar and the second magnetic bar are spaced apart on the magnetic bar base, the permanent magnet is located between the first magnetic bar and the second magnetic bar, the bottom end of the first magnetic bar is in contact with the N pole of the permanent magnet, and the bottom end of the second magnetic bar is in contact with the S pole of the permanent magnet.

[0011] Furthermore, a first fixed cavity, a second fixed cavity and a third fixed cavity are provided in the magnetic bar base, the first fixed cavity and the second fixed cavity are spaced apart, the third fixed cavity is provided between the first fixed cavity and the second fixed cavity, and both ends of the third fixed cavity are respectively connected to the first fixed cavity and the second fixed cavity, the bottom of the first magnetic bar is inserted into the first fixed cavity, the bottom of the second magnetic bar is inserted into the second fixed cavity, and the permanent magnet is provided in the third fixed cavity.

[0012] Furthermore, the first coil is spirally wound around the outer circumference of the first magnetic bar from bottom to top, and the second coil is spirally wound around the outer circumference of the second magnetic bar from top to bottom, the head end of the first coil is connected to the positive pole of the power supply circuit, the tail end of the second coil is connected to the negative pole of the power supply circuit, and the tail end of the first coil is connected to the head end of the second coil.

[0013] Furthermore, the tail end of the second coil extends to the side where the head end of the first coil is located, so that the tail end of the second coil and the head end of the first coil are routed on the same side, and a routing groove is provided on one side of the magnetic rod base, and the routing groove is used for routing the head end of the first coil and the tail end of the second coil.

[0014] Furthermore, a wiring hole is provided at the bottom of the magnetic bar positioning groove, a control board is provided at the bottom of the mounting seat, and the first coil head end and the second coil tail end pass through the wiring hole and are fixed on the control board.

[0015] Furthermore, the needle selection seat structure also includes a shell for fixing the mounting seat, the mounting seat is arranged on the top of the shell, and the control board is arranged in the shell.

[0016] The needle selection seat structure of a needle selector proposed by the present invention has the following beneficial effects: (1) After the first magnetic bar of the magnetic bar assembly of the needle selection seat structure is magnetized, the top end is N-pole, and after the second magnetic bar is magnetized, the top end is S-pole. The top end of the first magnetic bar is connected to the top end of the second magnetic bar through the spring needle, so that the magnetic flux lines outside the first magnetic bar and the second magnetic bar are transmitted in the spring needle, thereby reducing the magnetic field interference with the surrounding magnetic bar assemblies and reducing the energy loss of the magnetic flux lines, thereby ensuring the accuracy of needle selection and improving production efficiency; (2) The mounting seat of the needle selector seat structure is provided with a receiving cavity, the top of the receiving cavity is provided with a plurality of magnetic rod extension openings, the bottom of the receiving cavity is provided with a plurality of magnetic rod positioning grooves, the plurality of magnetic rod positioning grooves respectively limit the bottoms of the plurality of magnetic rod assemblies, the tops of the plurality of magnetic rod assemblies respectively extend from the plurality of magnetic rod extension openings, so that the tops of the plurality of magnetic rod assemblies can adsorb the corresponding spring needles, or release the corresponding spring needles, thereby realizing the needle selection of the needle selector; (3) The multiple magnetic bar assemblies of the needle selection seat structure are arranged in at least two rows on the mounting seat, and the multiple magnetic bar assemblies arranged in two adjacent rows are arranged alternately in sequence, so that the multiple magnetic bar assemblies can adsorb the corresponding spring needles, or release the corresponding spring needles, and in the process of the multiple magnetic bar assemblies adsorbing or releasing the corresponding spring needles, the movement trajectories of all the spring needles do not overlap, thereby preventing the spring needles from interfering with each other, thereby ensuring the accuracy of needle selection and improving production efficiency; (4) The mounting seat of the needle selection seat structure is composed of a first seat body and a second seat body. A first half cavity is arranged in the first seat body, and a second half cavity is arranged in the second seat body. A plurality of magnetic bar positioning grooves arranged at the bottom of the first half cavity are staggered with a plurality of magnetic bar positioning grooves arranged at the bottom of the second half cavity; a plurality of magnetic bar extension openings arranged at the top of the first half cavity are staggered with a plurality of magnetic bar extension openings arranged at the top of the second half cavity, so that a first row of magnetic bar assemblies arranged in the first half cavity are staggered with a second row of magnetic bar assemblies arranged in the second half cavity; (5) The needle selector seat structure is provided with a plurality of magnetic rod extension openings at one end on the top of the first half cavity and the second half cavity, and a plurality of magnetic rod positioning grooves at one end on the bottom of the first half cavity and the second half cavity are open, so that the top of the magnetic rod assembly is slidably inserted into the magnetic rod extension opening through the opening of the magnetic rod extension opening, and at the same time, the bottom of the magnetic rod assembly is slidably inserted into the magnetic rod positioning groove through the opening of the magnetic rod positioning groove, thereby making the installation of the first row of magnetic rod assemblies in the first seat body and the installation of the second row of magnetic rod assemblies in the second seat body simpler and more convenient, thereby making the implementation of the needle selector seat structure simpler and more convenient; (6) The bottom end of the first magnetic bar of the needle selection seat structure is in contact with the N pole of the permanent magnet, and the bottom end of the second magnetic bar is in contact with the S pole of the permanent magnet. The first magnetic bar, the permanent magnet and the second magnetic bar are regarded as a whole magnet, the first magnetic bar is the N pole of the magnet, and the second magnetic bar 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 are transmitted in the spring needle, thereby reducing the magnetic field interference with the surrounding magnetic bars and the energy loss of the magnetic flux lines, thereby ensuring the accuracy of needle selection and improving production efficiency. (7) The two ends of the third fixed cavity of the needle selector seat structure are connected to the first fixed cavity and the second fixed cavity respectively, and the N pole and S pole of the permanent magnet are respectively located at the two ends of the permanent magnet. Therefore, the N pole of the permanent magnet fits with the bottom end of the first magnetic rod at one end of the third fixed cavity, and the S pole of the permanent magnet fits with the bottom end of the second magnetic rod at the other end of the third fixed cavity, so that the first magnetic rod, the permanent magnet and the second magnetic rod form a U-shaped integral magnet; (8) A wiring groove is provided on one side of the magnetic bar base of the needle selector structure. When the tail end of the second coil extends to the side where the head end of the first coil is located, the head end of the first coil and the tail end of the second coil are both routed through the wiring groove. The head end of the first coil and the tail end of the second coil are limited by the wiring groove, so that the routing of the first coil and the second coil is more regular, further making the implementation of the magnetic bar assembly simpler and more convenient, and improving production efficiency; (9) A wiring hole is provided at the bottom of each magnetic bar positioning slot of the present needle selector seat structure, and a control board is provided at the bottom of the mounting seat. The first coil head end and the second coil tail end are routed through the wiring slot, pass through the wiring hole, and are fixedly connected to the control board, thereby integrating the first coil head end and the second coil tail end of all magnetic bar assemblies on the control board, and finally leading out through the control board and connecting to the positive and negative poles of the power supply circuit, thereby making the wiring of the present needle selector seat structure simpler and facilitating the implementation of the present needle selector seat structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 A schematic structural diagram of a needle selection seat structure of a needle selector according to an embodiment of the present invention; Figure 2 An exploded view of the assembly of a needle selection seat structure of a needle selector according to an embodiment of the present invention; Figure 3 It is a partial structural schematic diagram of a magnetic bar assembly of a needle selection seat structure of a needle selector according to an embodiment of the present invention installed on a first seat body or a second seat body; Figure 4 A schematic structural diagram of a magnetic bar assembly of a needle selection seat structure of a needle selector according to an embodiment of the present invention; Figure 5 A schematic cross-sectional view of a magnetic bar assembly of a needle selection seat structure of a needle selector according to an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a magnetic bar base of a needle selection seat structure of a needle selector according to an embodiment of the present invention.

[0019] In the figure: 1. magnetic bar assembly; 11. first magnetic bar; 12. second magnetic bar; 13. first coil; 14. second coil; 15. magnetic bar base; 151. first fixed cavity; 152. second fixed cavity; 153. third fixed cavity; 154. wiring groove; 16. permanent magnet; 2. mounting seat; 21. first seat body; 211. magnetic bar extension port; 212. magnetic bar positioning groove; 213. wiring hole; 22. second seat body; 3. control board; 4. outer shell. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1 ~ to Figure 6 A needle selection seat structure of a needle selector according to an embodiment of the present invention comprises a plurality of magnetic bar assemblies 1 and a mounting seat 2 for mounting the plurality of magnetic bar assemblies 1, wherein the plurality of magnetic bar assemblies 1 are staggeredly arranged on the mounting seat 2; the magnetic bar assemblies 1 comprise a first magnetic bar 11 and a second magnetic bar 12 arranged at intervals, a first coil 13 arranged on the first magnetic bar 11, and a second coil 14 arranged on the second magnetic bar 12, wherein the top end of the first magnetic bar 11 is an N pole after being magnetized, and the top end of the second magnetic bar 12 is an S pole after being magnetized, and the current flow directions of the first coil 13 and the second coil 14 are opposite, and the energized first coil 13 demagnetizes the first magnetic bar 11, and the energized second coil 14 demagnetizes the second magnetic bar 12.

[0022] In the present application, the needle selection seat structure includes a mounting seat 2 and a plurality of magnetic bar assemblies 1, and the plurality of magnetic bar assemblies 1 are mounted on the mounting seat 2. It is foreseeable that the number of magnetic bar assemblies 1 corresponds to the number of spring needles. Since the plurality of magnetic bar assemblies 1 are staggered on the mounting seat 2, the corresponding spring needles are adsorbed or released by a single magnetic bar assembly 1, thereby enabling the needle selection of the needle selector.

[0023] In the present application, the magnetic bar assembly 1 includes a first magnetic bar 11 and a second magnetic bar 12, the first magnetic bar 11 and the second magnetic bar 12 are arranged at intervals, wherein the top end of the first magnetic bar 11 is an N pole after being magnetized, and the top end of the second magnetic bar 12 is an S pole after being magnetized. For a single spring pin, the magnetic attraction generated by the first magnetic bar 11 and the second magnetic bar 12 can simultaneously adsorb the corresponding spring pin.

[0024] 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, and in the prior art, the needle selector magnetic bars used for a single spring needle all have the same magnetic pole, the magnetic flux lines outside the magnetic bar are transmitted from the N pole to the S pole in the air, and the magnetic flux lines transmitted in the air have stray loops and large energy losses, which can easily interfere with the magnetic fields of the surrounding magnetic bars and reduce the adsorption force of the magnetic bar on the corresponding spring needle, which may lead to needle selection errors, knitting errors, and affect production efficiency.

[0025] In the present application, the top of the first magnetic bar 11 is N-pole after being magnetized, and the top of the second magnetic bar 12 is S-pole after being magnetized. When the first magnetic bar 11 and the second magnetic bar 12 simultaneously adsorb the corresponding spring needles, the spring needles connect the top of the first magnetic bar 11 with the top of the second magnetic bar.

[0026] In this embodiment, the first magnetic bar 11, the second magnetic bar 12 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 magnetic bar 11 and the second magnetic bar 12, most of the magnetic flux lines propagate from the N pole to the S pole in the spring needle.

[0027] On the one hand, it can prevent the magnetic flux lines propagating outside the first magnetic bar 11 and the second magnetic bar 12 from being scattered, thereby reducing the magnetic field interference with the surrounding magnetic bar assembly 1; 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 magnetic bar 11 and the second magnetic bar 12 on the corresponding spring needle, thereby ensuring the accuracy of needle selection and improving production efficiency.

[0028] In the present application, the magnetic bar assembly 1 further includes a first coil 13 and a second coil 14, wherein the first coil 13 is disposed on the first magnetic bar 11, and the second coil 14 is disposed on the second magnetic bar 12. As mentioned above, the first magnetic bar 11 and the second magnetic bar 12 are made of soft magnetic materials, so after the first magnetic bar 11 and the second magnetic bar 12 are magnetized, they can simultaneously generate magnetic attraction to the corresponding spring pins, causing the spring pins to produce elastic deformation, thereby adsorbing the spring pins to the tops of the first magnetic bar 11 and the second magnetic bar 12.

[0029] When the first coil 13 is energized, the magnetic field formed in the first coil 13 has a magnetic flux line direction opposite to the internal magnetic flux line direction of the first magnetic bar 11 after magnetization. Therefore, the magnetic field formed in the first coil 13 and the magnetic field of the first magnetic bar 11 after magnetization cancel each other out, thereby reducing the magnetic field strength of the first magnetic bar 11 and achieving demagnetization of the first magnetic bar 11.

[0030] When the second coil 14 is energized, the magnetic field formed in the second coil 14 has a magnetic flux line direction opposite to the internal magnetic flux line direction of the second magnetic bar 12 after magnetization. Therefore, the magnetic field formed in the second coil 14 and the magnetic field of the second magnetic bar 12 after magnetization cancel each other out, thereby reducing the magnetic field strength of the second magnetic bar 12 and achieving demagnetization of the second magnetic bar 12.

[0031] When the magnetic attraction of the first magnetic bar 11 and the second magnetic bar 12 on the spring pin is less than the elastic force of the spring pin to restore its own deformation, the first magnetic bar 11 and the second magnetic bar 12 release the adsorbed spring pin to restore the spring pin to its original shape. Therefore, in the present application, the first magnetic bar 11 and the second magnetic bar 12 adsorb or release the corresponding spring pin to change the position of the corresponding spring pin, thereby realizing the needle selection of the needle selector.

[0032] In one embodiment, initially, the first magnetic bar 11 and the second magnetic bar 12 do not adsorb the corresponding spring needle, and the spring needle is in a non-working position; when selecting the needle, the first magnetic bar 11 and the second magnetic bar 12 adsorb the corresponding spring needle, so that the spring needle moves from the non-working position to the working position to perform the weaving operation; after the work is completed, the first coil 13 and the second coil 14 are energized, and the first magnetic bar 11 and the second magnetic bar 12 release the corresponding spring needle, so that the spring needle returns to the non-working position and waits for the next weaving operation.

[0033] In another embodiment, initially, the first magnetic bar 11 and the second magnetic bar 12 adsorb the corresponding spring needle, and the spring needle is in the non-working position; when selecting the needle, the first coil 13 and the second coil 14 are energized, and the first magnetic bar 11 and the second magnetic bar 12 loosen the corresponding spring needle, so that the spring needle moves from the non-working position to the working position to perform the weaving operation; after the work is completed, the first coil 13 and the second coil 14 are de-energized, and the first magnetic bar 11 and the second magnetic bar 12 adsorb the corresponding spring needle, so that the spring needle returns to the non-working position and waits for the next weaving operation.

[0034] The needle selector of the present application is suitable for horizontal knitting machines such as glove machines, flat knitting machines, and collar knitting machines. That is, the needle selection seat structure of the needle selector can simultaneously adsorb or release the corresponding spring needles of horizontal knitting machines such as glove machines, flat knitting machines, and collar knitting machines through the first magnetic bar 11 and the second magnetic bar 12, so as to realize the needle selection of horizontal knitting machines such as glove machines, flat knitting machines, and collar knitting machines.

[0035] Furthermore, in this embodiment, the magnetic bar assembly 1 also includes a magnetic bar base 15 and a permanent magnet 16 , the permanent magnet 16 is arranged in the magnetic bar base 15 , the first magnetic bar 11 and the second magnetic bar 12 are arranged at intervals on the magnetic bar base 15 , and the permanent magnet 16 is arranged between the first magnetic bar 11 and the second magnetic bar 12 .

[0036] Since the bottom end of the first magnetic bar 11 is in contact with the N pole of the permanent magnet 16, and the bottom end of the second magnetic bar 12 is in contact with the S pole of the permanent magnet 16, the first magnetic bar 11 and the second magnetic bar 12 are magnetized by magnetizing through the permanent magnet 16, and the top end of the first magnetic bar 11 is the N pole, and the top end of the second magnetic bar 12 is the S pole, so that the corresponding spring pins are adsorbed by the magnetic attraction generated by the first magnetic bar 11 and the second magnetic bar 12.

[0037] After the first magnetic bar 11 and the second magnetic bar 12 are magnetized by the permanent magnet 16, it is equivalent to the first magnetic bar 11 extending the N pole of the permanent magnet 16, and the second magnetic bar 12 extending the S pole of the permanent magnet 16, that is, the first magnetic bar 11, the permanent magnet 16 and the second magnetic bar 12 are regarded as a whole magnet, the first magnetic bar 11 is the N pole of the magnet, and the second magnetic bar 12 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 in the air from the top of the first magnetic bar 11 to the top of the second magnetic bar 12. When the first magnetic bar 11 and the second magnetic bar 12 are attracted to the spring needle, the spring needle conducts the top of the first magnetic bar 11 with the top of the second magnetic bar 12, 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 magnetic bar 11 and the second magnetic bar 12 on the spring needle, thereby ensuring the accuracy of needle selection and improving production efficiency.

[0040] Furthermore, in this embodiment, a first fixed cavity 151 , a second fixed cavity 152 and a third fixed cavity 153 are provided in the magnetic bar base 15 . The first fixed cavity 151 and the second fixed cavity 152 are spaced apart, and the third fixed cavity 153 is provided between the first fixed cavity 151 and the second fixed cavity 152 .

[0041] When assembling the magnetic bar assembly 1, the bottom of the first magnetic bar 11 is inserted into the first fixed cavity 151, the bottom of the second magnetic bar 12 is inserted into the second fixed cavity 152, and the permanent magnet 16 is arranged in the third fixed cavity 153, so that the first magnetic bar 11 is fixed by the first fixed cavity 151, the second magnetic bar 12 is fixed by the second fixed cavity 152, and the permanent magnet 16 is fixed by the third fixed cavity 153, so that the first magnetic bar 11 and the second magnetic bar 12 are arranged at intervals on the magnetic bar base 15, and the permanent magnet 16 is arranged between the first magnetic bar 11 and the second magnetic bar 12.

[0042] Since the two ends of the third fixed cavity 153 are respectively connected to the first fixed cavity 151 and the second fixed cavity 152, and the N pole and S pole of the permanent magnet 16 are respectively located at the two ends of the permanent magnet 16, the N pole of the permanent magnet 16 is in contact with the bottom end of the first magnetic bar 11 at one end of the third fixed cavity 153, and the S pole of the permanent magnet 16 is in contact with the bottom end of the second magnetic bar 12 at the other end of the third fixed cavity 153, thereby forming a U-shaped integral magnet with the first magnetic bar 11, the permanent magnet 16 and the second magnetic bar 12.

[0043] In the previous embodiment, it is mentioned that outside the overall magnet formed by the permanent magnet 16, the first magnetic bar 11 and the second magnetic bar 12, the magnetic flux lines are propagated from the top of the first magnetic bar 11 to the top of the second magnetic bar 12; and inside the overall magnet, the magnetic flux lines pass through the second magnetic bar 12, the permanent magnet 16 and the first magnetic bar 11 in sequence, and then propagate from the top of the second magnetic bar 12 to the top of the first magnetic bar 11, thereby forming a closed loop with the magnetic flux lines outside the overall magnet.

[0044] Therefore, in the present application, the internal magnetic flux lines of the first magnetic bar 11 after magnetization are propagated from the bottom end of the first magnetic bar 11 to the top end of the first magnetic bar 11, and the internal magnetic flux lines of the second magnetic bar 12 after magnetization are propagated from the top end of the second magnetic bar 12 to the bottom end of the second magnetic bar 12, that is, the internal magnetic flux lines of the first magnetic bar 11 after magnetization are from bottom to top, and the internal magnetic flux lines of the second magnetic bar 12 after magnetization are from top to bottom.

[0045] Therefore, in this embodiment, the first coil 13 is wound around the outer circumference of the first magnetic bar 11 from bottom to top, so that when the first coil 13 is energized, the magnetic field formed in the first coil 13 has a magnetic flux line direction opposite to the internal magnetic flux line direction of the first magnetic bar 11 after magnetization, so that the magnetic field formed in the first coil 13 and the magnetic field of the first magnetic bar 11 after magnetization cancel each other out, reducing the magnetic field strength of the first magnetic bar 11, thereby achieving demagnetization of the first magnetic bar 11.

[0046] The second coil 14 is wound around the outer circumference of the second magnetic bar 12 from top to bottom, so that when the second coil 14 is energized, the magnetic field formed by the second coil 14 has a magnetic flux line direction opposite to the internal magnetic flux line direction of the second magnetic bar 12 after magnetization, so that the magnetic field formed by the second coil 14 and the magnetic field of the second magnetic bar 12 after magnetization cancel each other out, reducing the magnetic field strength of the second magnetic bar 12, thereby achieving demagnetization of the second magnetic bar 12.

[0047] In actual implementation, the first coil 13 and the second coil 14 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 respectively. 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 coil 13 and the second coil 14 use the same set of power supply equipment for current flow.

[0048] Therefore, in the present embodiment, the tail end of the first coil 13 is connected to the head end of the second coil 14, thereby connecting the first coil 13 and the second coil 14 in series; the head end of the first coil 13 is connected to the positive pole of the power supply circuit, and the tail end of the second coil 14 is connected to the negative pole of the power supply circuit, thereby forming a closed loop, so that the power supply circuit can pass current to the first coil 13 and the second coil 14 at the same time, thereby making the structure of the needle selector more compact and reducing the production cost.

[0049] Specifically, in actual implementation, the same enameled wire can be used to make the first coil 13 and the second coil 14, as well as the first coil 13 and the second coil 14 in series, that is, the enameled wire is firstly spirally wound around the outer circumference of the first magnetic bar 11 from bottom to top to form the first coil 13; then, at the top of the first coil 13, the enameled wire is horizontally pulled to the second magnetic bar 12, and spirally wound around the outer circumference of the second magnetic bar 12 from top to bottom to form the second coil 14, thereby realizing the series connection of the first coil 13 and the second coil 14; 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 pass current to the first coil 13 and the second coil 14 at the same time.

[0050] Since the head end of the first coil 13 is located at the bottom of the first coil 13 and the tail end of the second coil 14 is located at the bottom of the second coil 14, it is easier to connect the head end of the first coil 13 to the positive pole of the power supply circuit and the tail end of the second coil 14 to the negative pole of the power supply circuit, thereby making the implementation of the magnetic bar assembly 1 simpler and more convenient, and further improving production efficiency.

[0051] Since the tail end of the first coil 13 is located at the top of the first coil 13 and the head end of the second coil 14 is located at the top of the second coil 14, the first coil 13 and the second coil 14 are connected in series at the top of the first coil 13 and the top of the second coil 14, which can not only reduce the use of enameled wire, thereby reducing production costs, but also make the series connection of the first coil 13 and the second coil 14 simpler, further making the implementation of the magnetic bar assembly 1 simpler and more convenient, thereby improving production efficiency.

[0052] Since the direction of the magnetic field lines of force formed in the energized coil is related to the winding direction of the current in the energized coil, it is worth noting that when the first coil 13 is wound from bottom to top around the outer periphery of the first magnetic bar 11 and the second coil 14 is wound from top to bottom around the outer periphery of the second magnetic bar 12, it is necessary to design the connection direction of the current in the first coil 13 and the second coil 14 according to the right-hand screw rule, so that the direction of the magnetic field lines of force formed in the first coil 13 and the second coil 14 is the above-mentioned direction.

[0053] In this embodiment, the tail end of the second coil 14 extends to the side where the head end of the first coil 13 is located. Specifically, the first coil 13 is formed by first winding the enameled wire from bottom to top in a spiral shape around the outer periphery of the first magnetic bar 11; then, at the top of the first coil 13, the enameled wire is horizontally pulled to the second magnetic bar 12, and then wound from top to bottom in a spiral shape around the outer periphery of the first coil 13 to form the second coil 14, thereby realizing the series connection of the first coil 13 and the second coil 14; Finally, at the bottom of the formed second coil 14, the enameled wire is pulled horizontally to the first magnetic bar 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 magnetic bar assembly 1 simpler and more convenient, and further improving production efficiency.

[0054] Furthermore, in this embodiment, a wiring groove 154 is provided on one side of the magnetic rod base 15. When the tail end of the second coil 14 extends to the side where the head end of the first coil 13 is located, the head end of the first coil 13 and the tail end of the second coil 14 are both routed through the wiring groove 154. The head end of the first coil 13 and the tail end of the second coil 14 are limited by the wiring groove 154, so that the routing of the first coil 13 and the second coil 14 is more regular, further making the implementation of the magnetic rod assembly 1 simpler and more convenient, and improving production efficiency.

[0055] In this embodiment, a receiving cavity is provided in the mounting seat 2, and the receiving cavity is used to receive a plurality of magnetic bar assemblies 1. A plurality of magnetic bar extension openings 211 are provided at the top of the receiving cavity, and a plurality of magnetic bar positioning grooves 212 are provided at the bottom of the receiving cavity, and the plurality of magnetic bar positioning grooves 212 respectively limit the bottoms of the plurality of magnetic bar assemblies 1, and the tops of the plurality of magnetic bar assemblies 1 respectively extend from the plurality of magnetic bar extension openings 211, so that the tops of the plurality of magnetic bar assemblies 1 can adsorb the corresponding spring pins, or release the corresponding spring pins, thereby realizing the needle selection of the needle selector.

[0056] Specifically, in actual implementation, each magnetic bar positioning groove 212 limits the magnetic bar base 15 of a magnetic bar assembly 1, and the tops of the first magnetic bar 11 and the second magnetic bar 12 of each magnetic bar assembly 1 extend from a magnetic bar extension port 211, so that the tops of the first magnetic bar 11 and the second magnetic bar 12 can simultaneously adsorb or release the corresponding spring pins.

[0057] In this embodiment, the mounting base 2 is composed of a first base body 21 and a second base body 22. A first half cavity is provided in the first base body 21, and a second half cavity is provided in the second base body 22. When the first base body 21 and the second base body 22 are combined, the first half cavity and the second half cavity are combined into a complete accommodating cavity.

[0058] In the present application, according to the number and position of spring needles, multiple magnetic bar assemblies 1 are arranged in at least two rows on the mounting base 2, and the multiple magnetic bar assemblies 1 arranged in two adjacent rows are staggered in sequence, so that the multiple magnetic bar assemblies 1 can adsorb the corresponding spring needles, or release the corresponding spring needles, and in the process of the multiple magnetic bar assemblies 1 adsorbing or releasing the corresponding spring needles, the movement trajectories of all the spring needles do not overlap, thereby preventing mutual interference between the spring needles, thereby ensuring the accuracy of needle selection and improving production efficiency.

[0059] Specifically, in actual implementation, at least one row of magnetic bar assemblies 1 is arranged in the first half cavity, and at least one row of magnetic bar assemblies 1 is arranged in the second half cavity. The example of two rows of staggered magnetic bar assemblies 1 arranged on the mounting base 2 is used for explanation, that is, the first row of magnetic bar assemblies 1 is arranged in the first half cavity, and the second row of magnetic bar assemblies 1 is arranged in the second half cavity.

[0060] Therefore, in this embodiment, a plurality of magnetic rod positioning grooves 212 are provided at the bottom of the first half cavity and the second half cavity. The bottom of the first row of magnetic rod assemblies 1 is limited by the plurality of magnetic rod positioning grooves 212 provided at the bottom of the first half cavity; and the bottom of the second row of magnetic rod assemblies 1 is limited by the plurality of magnetic rod positioning grooves 212 provided at the bottom of the second half cavity.

[0061] The tops of the first half cavity and the second half cavity are both provided with a plurality of magnetic rod extension openings 211. The tops of the first row of magnetic rod assemblies 1 extend out of the plurality of magnetic rod extension openings 211 provided on the top of the first half cavity, and the tops of the second row of magnetic rod assemblies 1 extend out of the plurality of magnetic rod extension openings 211 provided on the top of the second half cavity.

[0062] In the present application, a plurality of magnetic rod positioning grooves 212 arranged at the bottom of the first half cavity are staggered with a plurality of magnetic rod positioning grooves 212 arranged at the bottom of the second half cavity; a plurality of magnetic rod extension openings 211 arranged at the top of the first half cavity are staggered with a plurality of magnetic rod extension openings 211 arranged at the top of the second half cavity, thereby making the first row of magnetic rod assemblies 1 arranged in the first half cavity staggered with the second row of magnetic rod assemblies 1 arranged in the second half cavity.

[0063] Further, in the present embodiment, the plurality of magnetic bar extension openings 211 disposed at the top of the first half cavity and the second half cavity are open at one end, and the plurality of magnetic bar positioning grooves 212 disposed at the bottom of the first half cavity and the second half cavity are open at one end. When the first row of magnetic bar assemblies 1 are installed in the first seat body 21, and the second row of magnetic bar assemblies 1 are installed in the second seat body 22, the top of the magnetic bar assembly 1 is slidably inserted into the magnetic bar extension opening 211 through the opening of the magnetic bar extension opening 211, and the bottom of the magnetic bar assembly 1 is slidably inserted into the magnetic bar positioning groove 212 through the opening of the magnetic bar positioning groove 212, thereby making the installation of the first row of magnetic bar assemblies 1 in the first seat body 21 and the installation of the second row of magnetic bar assemblies 1 in the second seat body 22 simpler and more convenient, thereby making the implementation of the present needle selection seat structure simpler and more convenient.

[0064] In the foregoing embodiments, it is mentioned that in each magnetic bar assembly 1, the head end of the first coil 13 and the tail end of the second coil 14 are routed through the routing groove 154 on one side of the magnetic bar base 15, and the head end of the first coil 13 and the tail end of the second coil 14 are limited by the routing groove 154, so that the routing of the first coil 13 and the second coil 14 is more regular.

[0065] Therefore, in this embodiment, a wiring hole 213 is provided at the bottom of each magnetic bar positioning groove 212, and a control board 3 is provided at the bottom of the mounting seat 2. When the magnetic bar base 15 of the magnetic bar assembly 1 is inserted into the magnetic bar positioning groove 212, the first end of the first coil 13 and the tail end of the second coil 14 that are routed through the wiring groove 154 pass through the wiring hole 213 and are fixedly connected to the control board 3, so that the first end of the first coil 13 and the tail end of the second coil 14 of all magnetic bar assemblies 1 are integrated on the control board 3, and finally led out through the control board 3 and connected to the positive and negative poles of the power supply circuit, thereby making the wiring of the needle selection seat structure simpler and facilitating the implementation of the needle selection seat structure.

[0066] Furthermore, in the present embodiment, the needle selector structure further includes a housing 4, a cavity is provided in the housing 4, the mounting seat 2 is provided at the top of the housing 4, and is fixedly connected to the housing 4, so that the mounting seat 2 is fixed by the housing 4. Since the control board 3 is provided at the bottom of the mounting seat 2, when the mounting seat 2 is fixedly installed at the top of the housing 4, the control board 3 is located in the cavity of the housing 4, so that the control board 3 is protected by the housing 4, and the control board 3 is prevented from being exposed, thereby enhancing the safety of the needle selector.

[0067] 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.

[0068] 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.

[0069] 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 needle selection seat structure of a needle selector, characterized in that: The invention comprises a plurality of magnetic bar assemblies (1) and a mounting seat (2) for mounting the plurality of magnetic bar assemblies (1), wherein the plurality of magnetic bar assemblies (1) are staggeredly arranged on the mounting seat (2); the magnetic bar assemblies (1) comprise a first magnetic bar (11) and a second magnetic bar (12) arranged at intervals, a first coil (13) arranged on the first magnetic bar (11), and a second coil (14) arranged on the second magnetic bar (12); the first magnetic bar (11) has an N pole at its top end after being magnetized, and the second magnetic bar (12) has an S pole at its top end after being magnetized; the first coil (13) and the second coil (14) have opposite current flow directions; the first coil (13) when energized demagnetizes the first magnetic bar (11), and the second coil (14) when energized demagnetizes the second magnetic bar (12).

2. A needle selection seat structure of a needle selector as claimed in claim 1, characterized in that: The mounting seat (2) is provided with a receiving cavity for receiving a plurality of the magnetic bar assemblies (1); the top of the receiving cavity is provided with a plurality of magnetic bar extension openings (211); the bottom is provided with a plurality of magnetic bar positioning grooves (212); the plurality of magnetic bar extension openings (211) are used to allow the tops of the plurality of magnetic bar assemblies (1) to extend out respectively; and the plurality of magnetic bar positioning grooves (212) are used to limit the bottoms of the plurality of magnetic bar assemblies (1) respectively.

3. A needle selection seat structure of a needle selector as claimed in claim 2, characterized in that: The mounting seat (2) comprises a first seat body (21) and a second seat body (22) which are assembled with each other, a first half cavity is arranged in the first seat body (21), a second half cavity is arranged in the second seat body (22), the first half cavity and the second half cavity are assembled to form the accommodating cavity, a plurality of magnetic bar extension openings (211) arranged at the top of the first half cavity are respectively staggered with a plurality of magnetic bar extension openings (211) arranged at the top of the second half cavity, and a plurality of magnetic bar positioning grooves (212) arranged at the bottom of the first half cavity are staggered with a plurality of magnetic bar positioning grooves (212) arranged at the bottom of the second half cavity.

4. A needle selection seat structure of a needle selector as claimed in claim 3, characterized in that: One end of the plurality of magnetic bar extension openings (211) provided at the top of the first half chamber and the second half chamber is open, and one end of the plurality of magnetic bar positioning grooves (212) provided at the bottom of the first half chamber and the second half chamber is open; the top of the magnetic bar assembly (1) is slidably inserted into the magnetic bar extension opening (211) from the opening of the magnetic bar extension opening (211), and the bottom of the magnetic bar assembly (1) is slidably inserted into the magnetic bar positioning groove (212) from the opening of the magnetic bar positioning groove (212).

5. A needle selection seat structure of a needle selector as claimed in claim 2, characterized in that: The magnetic bar assembly (1) further comprises a magnetic bar base (15), and a permanent magnet (16) arranged in the magnetic bar base (15); the first magnetic bar (11) and the second magnetic bar (12) are arranged on the magnetic bar base (15) at intervals; the permanent magnet (16) is located between the first magnetic bar (11) and the second magnetic bar (12); the bottom end of the first magnetic bar (11) is in contact with the N pole of the permanent magnet (16); and the bottom end of the second magnetic bar (12) is in contact with the S pole of the permanent magnet (16).

6. A needle selection seat structure of a needle selector as claimed in claim 5, characterized in that: A first fixed cavity (151), a second fixed cavity (152) and a third fixed cavity (153) are provided in the magnetic bar base (15); the first fixed cavity (151) and the second fixed cavity (152) are arranged at intervals; the third fixed cavity (153) is arranged between the first fixed cavity (151) and the second fixed cavity (152); and two ends of the third fixed cavity (153) are respectively connected to the first fixed cavity (151) and the second fixed cavity (152); the bottom of the first magnetic bar (11) is plugged into the first fixed cavity (151); the bottom of the second magnetic bar (12) is plugged into the second fixed cavity (152); and the permanent magnet (16) is arranged in the third fixed cavity (153).

7. A needle selection seat structure of a needle selector as claimed in claim 5, characterized in that: The first coil (13) is spirally wound around the outer circumference of the first magnetic bar (11) from bottom to top, and the second coil (14) is spirally wound around the outer circumference of the second magnetic bar (12) from top to bottom, the head end of the first coil (13) is connected to the positive pole of the power supply circuit, the tail end of the second coil (14) is connected to the negative pole of the power supply circuit, and the tail end of the first coil (13) is connected to the head end of the second coil (14).

8. A needle selection seat structure of a needle selector as claimed in claim 7, characterized in that: The tail end of the second coil (14) extends to the side where the head end of the first coil (13) is located, so that the tail end of the second coil (14) and the head end of the first coil (13) are routed on the same side, and a routing groove (154) is provided on one side of the magnetic bar base (15), and the routing groove (154) is used for routing the head end of the first coil (13) and the tail end of the second coil (14).

9. A needle selection seat structure of a needle selector as claimed in claim 8, characterized in that: A wiring hole (213) is provided at the bottom of the magnetic bar positioning groove (212), a control board (3) is provided at the bottom of the mounting seat (2), and the head end of the first coil (13) and the tail end of the second coil (14) pass through the wiring hole (213) and are fixed on the control board (3).

10. A needle selection seat structure of a needle selector as claimed in claim 9, characterized in that: The needle selection seat structure also includes a shell (4) for fixing the mounting seat (2), the mounting seat (2) is arranged on the top of the shell (4), and the control panel (3) is arranged inside the shell (4).

Images