CN111113700A

CN111113700A - Electric needling device

Info

Publication number: CN111113700A
Application number: CN201811293115.9A
Authority: CN
Inventors: 黄伟华
Original assignee: Wuhan Huanyu Feilong New Material Technology Co ltd
Current assignee: Wuhan Huanyu Feilong New Material Technology Co ltd
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2020-05-08

Abstract

The invention provides an electric acupuncture device which comprises a barrel, wherein a stator barrel is arranged in the barrel, a coil winding is arranged in the stator barrel, a rotor is slidably arranged in the stator barrel, and the rotor is fixedly connected with a needle rod. The coil winding is wound along the circumference; the rotor is provided with a permanent magnet, and the magnetizing direction of the permanent magnet is axial magnetizing. By adopting a linear electromagnetic driving structure, the needle rod can be driven to reciprocate at a higher speed, and the linear electromagnetic driving structure is compact in structure, lighter in self weight, convenient to operate manually or combined with other equipment, and capable of improving the production efficiency. When the manual operation is carried out, the rapid action of the wrist and the arm is not needed, and the self weight is light, so that the labor intensity can be greatly reduced.

Description

Electric acupuncture device

Technical Field

The invention relates to the field of quartz composite ceramic material processing tools, in particular to an electric needling device.

Background

As the military weapons develop in the directions of high, fine and sharp, the cost of the military weapons is higher and higher, and the high cost limits the mass production and application. There is a need to reduce the cost of military weapons. In the field of aerospace shells, a quartz fiber woven body is required to be used as a framework of a quartz composite ceramic structure, and the existing technical scheme is to manufacture the quartz composite ceramic shell by adopting a manual needling mode. For example, chinese patent document CN 102731130 a discloses a method for manufacturing a low-cost needle-punched fabric-reinforced quartz composite ceramic radome, in which a large number of needle punching operations are required to form the shape of a quartz fiber woven body, and then the next processing is performed. The method has high labor intensity, low productivity and high labor cost. Now thatThere is also a proposal of adopting an electric acupuncture tool in the technology, but the tool has heavier weight, inflexible use and high labor intensity for long-term use, and is easy to cause wrist strain and influence the physical health of operators. The density of the prior quartz fiber woven body needs to be maintained at 0.15-0.7 g/cm after forming³. The quartz felt fiber in the state is loose, and is easy to move along with the needle rod, so that the needling operation is influenced, and the quality of a finished product of the quartz fiber woven body is also influenced.

Disclosure of Invention

The invention aims to provide an electric needling device, which can greatly reduce the self weight of the device and improve the needling work efficiency. In the preferred scheme, can improve the motion speed of acupuncture, can also further improve single acupuncture processing density according to operating mode needs, reduce the phenomenon that the fibre is followed the needle bar drunkenness.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an electric acupuncture device comprises a barrel, wherein a stator barrel is arranged in the barrel, a coil winding is arranged in the stator barrel, a rotor is slidably mounted in the stator barrel, and the rotor is fixedly connected with a needle rod.

In a preferred scheme, the coil winding is wound along the circumference;

the rotor is provided with a permanent magnet, and the magnetizing direction of the permanent magnet is axial magnetizing.

In a preferable scheme, the permanent magnets are annular, the annular permanent magnets are sleeved on the needle rod, and magnetic shielding rings are arranged between the permanent magnets.

In a preferred scheme, a first exhaust port and a second exhaust port are arranged at positions, close to two ends, of the cylinder body and the stator cylinder body.

In the preferred scheme, a section of stator cylinder body of the first exhaust port, which is closest to the end head, forms a rotor buffer structure;

and a section of stator cylinder body of the second exhaust port, which is closest to the end head, forms a rotor buffer structure.

In the preferred scheme, a guide sleeve is fixedly arranged at one end close to the needle point, and the needle rod slides along an inner hole of the guide sleeve;

and a guide slip ring is arranged on the outer wall of the rotor.

In a preferred scheme, the material of the guide sleeve and the guide sliding ring is polytetrafluoroethylene.

In a preferred scheme, a plurality of wire pressing grooves are formed in the side wall of the needle rod at the position close to the needle tip, and the opening direction of the wire pressing grooves faces the direction of the needle tip.

In the preferred scheme, inductive switches are further arranged at positions, close to two ends, of the cylinder body or the stator cylinder body, the inductive switches are electrically connected with the main chip through the signal processing module, the main chip is electrically connected with the switch group, and the power supply is electrically connected with the coil windings through the switch group so as to switch the current directions of the coil windings according to the inductive switches.

In the preferred scheme, an auxiliary needle frame is further arranged and fixedly connected with the needle rod, and a plurality of array needle heads are arranged on the auxiliary needle frame.

The electric needling device provided by the invention can drive the needle rod to reciprocate at a higher speed by adopting a linear electromagnetic driving structure, has a compact structure and lighter self weight, and is convenient for manual work or combined work with other equipment to improve the production efficiency. When the manual operation is carried out, the rapid action of the wrist and the arm is not needed, and the self weight is light, so that the labor intensity can be greatly reduced. The guiding structure made of polytetrafluoroethylene materials is adopted, so that the movement speed of the needle bar can be improved, and the phenomenon that fibers move along with the needle bar is reduced. The silk groove structure of pressing towards the needle point direction that sets up can improve the efficiency of acupuncture operation, makes spacing to the thickness direction operation, can reduce the fibre again and follow withdrawing the in-process. The arranged inductive switch can realize the automatic reciprocating motion of the needle rod. The arranged air outlet and the buffer structure can advance and withdraw the needle at a high speed, realize air buffer before the stroke is finished and reduce the impact of the rotor. The auxiliary needle frame and the array needle head structure can further improve the needling efficiency.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of a mover in the present invention.

FIG. 3 is a schematic view of another preferred structure of the present invention.

Fig. 4 is a schematic structural view of a thread pressing groove on a needle bar in the invention.

FIG. 5 is a block diagram of the circuit structure of the present invention.

In the figure: the magnetic shielding device comprises a barrel 1, a stator barrel 2, a rotor 3, a coil winding 4, a first exhaust port 5, a needle rod 6, a guide sleeve 7, a second exhaust port 8, an end cover 9, an end cap 10, a guide slip ring 11, a first inductive switch 12, a second inductive switch 13, a first signal processing module 14, a magnetic shielding ring 15, an auxiliary needle frame 16, an array needle head 17, a power supply 18, a main chip 19, a switch group 20, a second signal processing module 21, a permanent magnet 22 and a wire pressing groove 23.

Detailed Description

As shown in fig. 1, an electric acupuncture device comprises a cylinder 3, a stator cylinder 2 is arranged in the cylinder 3, a coil winding 4 is arranged in the stator cylinder 2, a rotor 3 is slidably mounted in the stator cylinder 2, and the rotor 3 is fixedly connected with a needle rod 6. With the structure, the reciprocating motion of the rotor 3 and the needle bar 6 is realized by passing currents in different directions to the coil winding 4, so that the needling operation is realized.

The lower end of the cylinder 3 is also provided with an end cover 9, and the top end is provided with an end cover 10. The needle bar 6 passes out of the end cap 9. In a preferred embodiment, the needle shaft 6 is made of a non-magnetic material, such as copper or aluminum, to reduce the influence of the magnetic field on the needle shaft 6. In a further preferred embodiment, a gasket made of a magnetic material is provided in the end cap 10, and the mover 3 can be temporarily attracted and fixed until the driving force generated by the coil winding 4 is greater than the attraction force of the mover 3 to the gasket.

In a preferred scheme, as shown in fig. 1 and 3, the coil winding 4 is wound along the circumference; to generate an axial thrust according to the principle of electromagnetic force.

The rotor 3 is provided with a permanent magnet 22, and the permanent magnet 22 is magnetized along the axial direction.

In a preferred embodiment, as shown in fig. 2, the permanent magnets 22 are annular, a plurality of annular permanent magnets 22 are sleeved on the needle bar 6, and the magnetic shielding ring 15 is arranged between the permanent magnets 22. With this structure, a plurality of magnetic loop lines are realized to increase the magnetic flux density in a small area and improve the axial thrust.

In a preferred embodiment, as shown in fig. 1 and 3, a first exhaust port 5 and a second exhaust port 8 are provided at positions near both ends of the cylinder 3 and the stator cylinder 2. With this structure, the influence of air resistance on the running speed of the needle bar 6 is reduced.

In a preferred scheme, as shown in fig. 1 and 3, a section of the stator cylinder 2, which is close to the end closest to the first exhaust port 5, forms a buffer structure of the rotor 3; the section of the stator cylinder 2 of the second exhaust port 8 closest to the end forms a buffer structure of the rotor 3. After passing over the air outlet, the gap between the mover 3 and the inner wall of the buffer structure is small, typically less than 0.1mm, and the air in the buffer structure is discharged slowly and is compressed continuously, thereby achieving buffering, thereby reducing the impact of the mover 3 moving at a high speed on the entire device.

In a preferred scheme, as shown in fig. 1 and 3, a guide sleeve 7 is fixedly arranged at one end close to the needle point, and the needle rod 6 slides along an inner hole of the guide sleeve 7;

and a guide slip ring 11 is arranged on the outer wall of the rotor 3. With this structure, the movement accuracy of the needle bar 6 is improved.

In a preferred scheme, the material of the guide sleeve 7 and the guide sliding ring 11 is polytetrafluoroethylene. With this structure, the friction force during the movement of the needle bar 6 is reduced. Further preferably, a magnetic levitation support structure may be used without providing the guide slip ring 11.

In a preferred scheme, as shown in fig. 3 and 4, a plurality of wire pressing grooves 23 are formed in the side wall of the needle rod 6 close to the needle tip, and the opening direction of the wire pressing grooves 23 faces the direction of the needle tip. From this structure, when needle bar 6 was down, drive the fibre easily and stride the layer operation, realize the fixed effect of staggered floor, and when needle bar 6 retrieved, the faster withdrawal speed of cooperation, the fibre was difficult along with needle bar 6 drunkenness.

In a preferred embodiment, as shown in fig. 1, 3 and 5, inductive switches are further provided at positions near both ends of the cylinder 1 or the stator cylinder 2, preferably magnetic inductive switches, such as the first inductive switch 12 and the second inductive switch 13 in fig. 1 and 3. The inductive switch is electrically connected with the main chip 19 through the signal processing module, the signal processing module is an amplifying module, a rectifying module, a filtering module and a digital-to-analog conversion module which are commonly used in the prior art, and because the magnetic force of the rotor 3 is strong, the signals acquired by the inductive switch are clear, and the direct entering of the digital-to-analog conversion module can be considered to be converted into pulse signals. The main chip 19 in this example uses a common AT-series single chip microcomputer, such as AT89S 51. The main chip 19 is electrically connected with the switch group 20, the switch group 20 adopts a thyristor as the switch group, the power supply 18 is electrically connected with the coil winding 4 through the switch group 20, and the power supply can adopt an external power supply or a storage battery. The voltage is preferably 12-24V. The current direction of the coil winding 4 is switched according to the inductive switch.

In a preferred scheme, an auxiliary needle frame 16 is further arranged, the auxiliary needle frame 16 is fixedly connected with the needle bar 6 through screws, and a plurality of array needle heads 17 are arranged on the auxiliary needle frame 16. Through setting up more syringe needles, can further improve the efficiency of acupuncture operation, for example in some positions, need reach 10~45 needles/cm²The needling density of the needle head array 17 is adopted, so that the efficiency of needling operation can be greatly improved. The array needles 12 described in this example refer to needles in rows and columns or needles in rows and columns.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. An electric acupuncture device, comprising a cylinder (3), characterized in that: a stator cylinder (2) is provided in the cylinder (3), and a coil winding (4) is provided in the stator cylinder (2), The mover (3) is slidably installed in the stator cylinder (2), and the mover (3) is fixedly connected with the needle bar (6).

2. An electric acupuncture device according to claim 1, characterized in that: the coil winding (4) is wound along the circumference;

The mover (3) is provided with a permanent magnet (22), and the magnetization direction of the permanent magnet (22) is along the axial direction.

3 . The electric acupuncture device according to claim 1 , wherein the permanent magnet ( 22 ) is annular, and a plurality of annular permanent magnets ( 22 ) are sleeved on the needle bar ( 6 ). 4 . A magnetic shielding ring (15) is arranged between the permanent magnets (22).

4. An electric acupuncture device according to claim 1, characterized in that: a first exhaust port (5) and a second exhaust port (5) and a second exhaust port (5) and a second exhaust port (5) and a second exhaust port (5) and a second exhaust port (5) are provided at positions close to both ends of the cylinder body (3) and the stator cylinder body (2). Exhaust port (8).

5 . The electric acupuncture device according to claim 4 , characterized in that: a section of the stator cylinder ( 2 ) from the closest end of the first exhaust port ( 5 ) constitutes a buffer structure of the mover ( 3 ); 6 .

A section of the stator cylinder (2) from the second exhaust port (8) to the nearest end constitutes a buffer structure of the mover (3).

6. An electric acupuncture device according to claim 1, characterized in that: a guide sleeve (7) is also fixed at one end close to the needle tip, and the needle rod (6) is along the inner hole of the guide sleeve (7) slide;

A guide slip ring (11) is arranged on the outer wall of the mover (3).

7 . The electric acupuncture device according to claim 1 , wherein the guide sleeve ( 7 ) and the guide slip ring ( 11 ) are made of polytetrafluoroethylene. 8 .

8. An electric acupuncture device according to claim 1, characterized in that: a plurality of wire pressing grooves (23) are provided on the side wall of the needle bar (6) near the needle tip, and the The opening direction is towards the direction of the needle tip.

9. An electric acupuncture device according to claim 1, characterized in that: an induction switch is further provided at a position close to both ends of the cylinder body (1) or the stator cylinder body (2), and the induction switch communicates with the signal processing module through the signal processing module. The main chip (19) is electrically connected, the main chip (19) is electrically connected with the switch group (20), and the power supply (18) is electrically connected with the coil winding (4) through the switch group (20) to switch the coil winding (4) according to the inductive switch ) of the current direction.

10. An electric acupuncture device according to any one of claims 1 to 9, characterized in that: an auxiliary needle holder (16) is further provided, and the auxiliary needle holder (16) is fixedly connected with the needle bar (6), A plurality of array needles (17) are arranged on the auxiliary needle holder (16).