TWI501263B - Magnetizing equipment and magnetizing method - Google Patents

Description

Magnetizing equipment and magnetizing method

The present invention relates to a magnetizing apparatus and a magnetizing method, and more particularly to a magnetizing apparatus and a magnetizing method for magnetizing a magnetic roller.

The magnetic roller can be used to purify the machining fluid or the lubricating fluid or the lubricating fluid, so that the machining machine or the transmission machine can prolong the service life and transmission quality with higher stability and precision, thereby improving the utilization rate of the cutting fluid. .

As shown in FIG. 1, in order to increase the re-use rate of the cutting fluid, a cutting fluid with metal chips 901 (the metal chip 901 is a ferromagnetic material) is generally introduced into a filtering device 910 to perform the cutting fluid. Separation work with metal chips 901. The filter device 910 includes an inlet end 911, a magnetic roller 912, a liquid outlet end 913, and a waste outlet end 914. The magnetic roller 912 includes a shaft center 912a fixed to the liquid outlet end 913 and the chip. A plurality of magnets 912b are disposed on the side of the shaft 912a adjacent to the liquid outlet end 913. The magnetic roller 912 further includes an outer tube 912c sleeved on the outer circumference of the shaft 912a and the plurality of magnets 912b. And the outer tube 912c is rotatable relative to the axis 912a and the plurality of magnets 912b.

After the cutting fluid with the plurality of metal chips 901 enters the inlet end 911 of the filtering device 910, the plurality of metal chips 901 are adsorbed to the The outer tube 912c is opposite to one side of the magnet 912b to prevent the plurality of metal chips 901 from flowing to the liquid outlet end 913 with the cutting fluid. Since the magnet 912b is not disposed on the axis 912a of the chip exit end 914, when the plurality of metal chips 901 rotate to the chip exit end 914 as the outer tube 912c rotates, the plurality of metal chips 901 disappear due to magnetic attraction. And falling to the chip exit end 914 to complete the separation of the cutting fluid from the metal chip 901.

At present, when manufacturing magnetic rollers, multiple magnets will be charged separately. Magnetic, and then attach the magnet to the outer surface of the shaft to form a magnetic roller, which is a process of pre-magnetizing and assembling. However, when the magnet is attached to the outer surface of the shaft, the magnetic force between the two magnets and the magnetic force between the magnet and the shaft center cause difficulty in attaching the magnet to the shaft center.

Therefore, there is a need to provide a magnetizing device for a magnetic roller to solve the aforementioned problems.

It is an object of the present invention to provide a magnetizing apparatus and method for magnetizing a magnetic roller.

In order to achieve the above object, the present invention provides a magnetizing apparatus for magnetizing a magnetic roller, the magnetic roller including an axis and a plurality of magnets to be magnetized, and the magnets to be magnetized are fixed on the axis The magnetizing apparatus includes a first magnetizing device and a second magnetizing device, and the first magnetizing device and the second magnetizing device are arranged to correspond to the magnets to be magnetized for use in the magnetizing The magnetizing magnets are simultaneously magnetized, and the first magnetizing device and the second magnetizing device respectively comprise: a housing having an accommodating space therein for placing any of the magnets to be magnetized, Magnetizing the magnet to be magnetized; a coil surrounds the accommodating space; wherein the coil of the first magnetizing device and the coil of the second magnetizing device are in the same line.

In order to achieve the above object, the present invention further provides a magnetization method, comprising the steps of: providing a magnetic roller, the magnetic roller comprising: an axis and a first magnet to be magnetized and a second magnet to be magnetized, the a magnet to be magnetized and the second magnet to be magnetized are fixed on the axis; the first magnet to be magnetized to place the magnetic roller is disposed in a receiving space surrounding a coil; and the coil is compliant The current is energized to generate a forward magnetic field in the accommodating space.

In order to achieve the above object, the present invention further provides a magnetization method, comprising the steps of: providing a magnetic roller, the magnetic roller comprising: an axis and a plurality of magnets to be magnetized, wherein the magnets to be magnetized are fixed on the axis The plurality of accommodating spaces surrounding the coil are disposed in the plurality of accommodating spaces surrounding the coil, and the accommodating spaces are corresponding to the magnets to be magnetized; the coil is energized while the portion is made The accommodating spaces generate a forward magnetic field and the other of the accommodating spaces generate a reverse magnetic field.

The magnetic roller described in the present invention is suitable for the process of magnetization after assembly, and the magnets of the magnetic roller are first fixed on the outer surface of the axis of the magnetic roller, and then the magnet of the magnetic roller is placed around the magnet. Magnetization is performed in the accommodation space of the coil. When the coil generates a magnetic field, the magnetic field density in the accommodating space is maximum and uniform, so the efficiency of magnetization is high. The magnetization method of the first embodiment of the present invention can control the direction of the magnetic field after the magnet is magnetized by controlling the direction of the current. The magnetization method of the second embodiment of the present invention uses the magnetization apparatus of the present invention to reduce the magnetization time of the magnetic roller by magnetizing a plurality of magnets to be magnetized at one time. Post-magnetization assembly compared to prior art The invention can avoid the problem that the magnet is broken due to excessive suction and the position of the magnet is inaccurate.

The above and other objects, features, and advantages of the present invention will become more apparent from the accompanying drawings.

100‧‧‧Magnetizing device

110‧‧‧shell

112‧‧‧ accommodating space

114‧‧‧ surface

120‧‧‧ coil

130‧‧‧Power Controller

140‧‧‧ Forward magnetic field

150‧‧‧Reverse magnetic field

200‧‧‧Magnetizing equipment

210‧‧‧Magnetizing device

211‧‧‧First magnetizing device

212‧‧‧Second magnetizing device

220‧‧‧shell

230‧‧‧ coil

231‧‧‧ coil

232‧‧‧ coil

240‧‧‧ accommodating space

241‧‧‧ accommodating space

242‧‧‧ accommodating space

250‧‧‧Power Controller

800‧‧‧Magnetic wheel

810‧‧‧Axis

812‧‧‧ surface

814‧‧‧Magnetic section

816‧‧‧No magnetic section

820‧‧‧ Magnets to be magnetized

821‧‧‧The first magnet to be magnetized

822‧‧‧Second magnet to be magnetized

830‧‧‧balance block

901‧‧‧Metal swarf

910‧‧‧Filter device

911‧‧‧ entrance end

912‧‧‧Magnetic wheel

912a‧‧‧Axis

912b‧‧‧ Magnet

912c‧‧‧External management

913‧‧‧Liquid outlet

914‧‧‧chip outlet

L‧‧‧ vertical axis

S100~S112‧‧‧Steps

S200~S206‧‧‧Steps

Figure 1 is a cross-sectional view showing the use of a conventional magnetic roller.

2 is a perspective view of a magnetic roller.

Figure 3 is a cross-sectional view of the magnetic roller.

Figure 4 is a perspective view of a single magnetizing device.

5 and FIG. 6 are cross-sectional views showing a magnetizing operation of a magnetic magnet to be magnetized by a single magnetizing device.

Figure 7 is a flow chart of a magnetization method according to a first embodiment of the present invention.

Figure 8 is a perspective view of a magnetizing apparatus according to an embodiment of the present invention.

FIG. 9 is a cross-sectional view showing the magnetizing operation of the magnet to be magnetized by the magnetizing apparatus of the present invention.

Figure 10 is a flow chart showing a method of magnetizing according to a second embodiment of the present invention.

2 is a perspective view of a magnetic roller. Figure 3 is a cross-sectional view of the magnetic roller. The magnetic roller 800 includes an axis 810 and a plurality of magnets 820 to be magnetized. The shaft 810 has a longitudinal axis L and a surface 812 that surrounds the longitudinal axis L. The surface 812 defines a magnetic section 814 and a non-magnetic section 816 along the circumferential direction of the longitudinal axis L. The magnets to be magnetized 820 are fixed on the surface 812 of the shaft 810 and are located in the magnetic section 814. The magnets to be magnetized The magnets 820 are arranged in a matrix. A weight 830 is secured to the outer surface 812 of the shaft 810 and is located in the non-magnetic section 816.

Figure 4 is a perspective view of a single magnetizing device. FIG. 5 is a partial cross-sectional view showing a magnetizing operation of a magnetic magnet to be magnetized by a single magnetizing device. The magnetizing device 100 is used to magnetize the magnetic roller 800 (as shown in FIG. 1). The magnetizing device 100 includes a housing 110 and a coil 120. The interior of the housing 110 has an accommodating space 112 for placing any of the magnets 820 to be magnetized. Preferably, the shape of the accommodating space 112 corresponds to the shape of any of the magnets to be magnetized 820, so that the magnet to be magnetized 820 is substantially filled in the accommodating space 112. The coil 120 is sleeved on the surface 114 of the housing 110 and surrounds the accommodating space 112. It should be noted that the term "filled" in the present embodiment means that the shape and size of the magnet to be magnetized 820 correspond to the accommodating space 112. When the magnet 820 to be magnetized is placed in the accommodating space 112, The accommodating space 112 can be filled, but the magnetic field 820 to be magnetized can be taken into the accommodating space 112 and removed from the accommodating space 112. There is still a gap between the magnetizing magnet 820 and the accommodating space 112.

The power source of the magnetizing device 100 can be provided by a power controller 130. The power controller 130 is electrically connected to the coil 120 for providing a forward current or a reverse current to the coil 120. The difference between the forward current and the reverse current in the above is that the direction in which the current flows in the coil 120 is opposite. When the coil 120 passes the forward current, a forward magnetic field 140 is generated in the accommodating space 112 (as shown in FIG. 5). When the coil 120 passes the reverse current, a reverse magnetic field 150 is generated in the accommodating space 112 (as shown in FIG. 6). The direction of the magnetic field of the forward magnetic field 140 and the reverse magnetic field 150 is opposite.

Figure 7 is a flow chart of a magnetization method according to a first embodiment of the present invention. The magnetization method includes the following steps:

Step S100: providing a magnetic roller. In this step, the magnetic roller is the magnetic roller 800 illustrated in FIG. 1 . The magnets to be magnetized 820 have been fixed to the surface 812 of the shaft 810. The magnets to be magnetized 820 include a first magnet to be magnetized 821 and a second magnet to be magnetized 822.

Step S102: placing the first magnet to be magnetized of the magnetic roller in the accommodating space surrounding the coil. In this step, as shown in FIG. 5 , the first magnetizable magnet 821 of the magnetic roller 800 is received in the accommodating space 112 of the magnetizing device 100 .

The shape of the accommodating space 112 corresponds to the shape of the first magnet to be magnetized 821. Therefore, when the first magnet to be magnetized 821 of the magnetic roller 800 is placed in the accommodating space 112, the first magnet to be magnetized 821 is filled with the The accommodation space 112 is inside.

Step S104: The coil is energized in the forward direction. In this step, as shown in FIGS. 4 and 5, the power controller 130 is activated, and the power controller 130 is set to generate a forward current. When the forward current enters the coil 120, a forward magnetic field 140 is simultaneously generated in the accommodating space 112 of the housing 110. When the first magnetism to be magnetized 821 is affected by the forward magnetic field 140, magnetization is started.

Step S106: Stop energizing the coil. In this step, as shown in FIG. 4 and FIG. 5, when the magnetic force of the first magnetizable magnet 821 reaches a predetermined intensity to form a first magnet, the power controller 130 is turned off, and the first magnet is removed. The accommodation space 112.

Step S108: placing the second magnet to be magnetized of the magnetic roller in the accommodating space. In this step, as shown in FIG. 4 and FIG. 6 , the second magnet to be magnetized 822 is aligned with the accommodating space 112 , and then the second magnet to be magnetized 822 is placed in the accommodating space 112 .

Step S110: Reverse energization of the coil. In this step, as shown in FIGS. 4 and 6, the power controller 130 is activated, and the power controller 130 is set to generate a reverse current. When a reverse current enters the coil 120, a reverse magnetic field 150 is simultaneously generated in the accommodating space 112 of the housing 110. When the second magnetism to be magnetized 822 is affected by the reverse magnetic field 150, magnetization begins.

Step S112: Stop energizing the coil. In this step, as shown in FIG. 4 and FIG. 6, when the magnetic force of the second magnetizing magnet 822 reaches a predetermined intensity to form a second magnet, the power controller 130 is turned off, and the second magnet is removed. The accommodation space 112.

By analogy, the other magnets to be magnetized 820 are magnetized in sequence.

Figure 8 is a perspective view of a magnetizing apparatus according to an embodiment of the present invention. FIG. 9 is a partial cross-sectional view showing the magnetizing operation of the magnetic roller for magnetizing the magnet to be magnetized. The magnetizing device is used to magnetize a magnetic roller. The magnetic roller is the magnetic roller 800 shown in FIG. The magnetizing apparatus 200 includes a plurality of magnetizing devices 210. For convenience of description, the magnetizing devices 210 include a first magnetizing device 211 and a second magnetizing device 212 for explanation. The arrangement of the first magnetizing device 211 and the second magnetizing device 212 corresponds to the magnets 820 to be magnetized. The first magnetizing device 211 and the second magnetizing device 212 respectively The utility model comprises a casing 220 and a coil 230. The housing 220 has an accommodating space 240 for receiving any of the magnets 820 to be magnetized to magnetize the magnet 820 to be magnetized. The coil 230 is sleeved on the surface of the housing 220 and surrounds the accommodating space 240. The coil 231 of the first magnetizing device 211 and the coil 232 of the second magnetizing device 212 may be the same line. In the embodiment of the present invention, the six magnetizing devices 210 may be arranged in a 3×2 manner, and the coils 230 of the magnetizing devices 210 may be surrounded by the same line. The first magnetizing device 211 is adjacent to the second magnetizing device 212, and the coil 231 of the first magnetizing device 211 surrounds the winding direction of the accommodating space 241 and the coil of the second magnetizing device 212. The winding direction of the 232 surrounding the accommodating space 242 is opposite.

The magnetizing device also includes a power controller 250. The power controller 250 is electrically connected to the coil 230 of the magnetizing devices 210 for supplying a current to the coil 230. When the coil 230 of the magnetizing device 210 flows current, the first magnetizing device is opposite to the winding direction of the coils 231 and 232 of the second magnetizing device 212. The direction of the magnetic field of 211 is opposite to the direction of the magnetic field of the second magnetizing means 212.

The material of the housing 220 can be metal. Preferably, the material of the housing 220 is a non-magnetic material, such as non-magnetic stainless steel, which can be generated when the power controller 250 energizes the coil 230. The effective magnetizing magnetic field has a low current demand for saturating the magnet, and thus generates less heat.

Figure 10 is a flow chart showing a method of magnetizing according to a second embodiment of the present invention. Please refer to FIG. 8 and FIG. 9 simultaneously. The magnetization method includes the following steps:

Step S200: providing a magnetic roller. In this step, the magnetic The magnetic roller is the magnetic roller 800 illustrated in FIG. 2 . The magnets to be magnetized 820 include a first magnet to be magnetized 821 and a second magnet to be magnetized 822.

Step S202: the magnetic magnets to be magnetized are placed in a plurality of accommodating spaces surrounding a coil, and the accommodating spaces are corresponding to the magnets to be magnetized. In this step, the first magnetizable magnet 821 of the magnetic roller 800 is received in the accommodating space 241 of the first magnetizing device 231, and the second magnetizing magnet 822 is accommodated in the second charging device. The accommodating space 242 of the magnetic device 212 is inside. The shape of the accommodating space 241 of the first magnetizing device 211 corresponds to the shape of the first magnetizing magnet 821. The shape of the accommodating space 242 of the second magnetizing device 212 corresponds to the second magnet to be magnetized 821. shape. When the first and second magnets 821, 822 of the magnetic roller 800 are placed in the accommodating spaces 241 and 242 of the first and second magnetizing devices 211 and 212, respectively, the first and second magnets to be magnetized The magnets 821 and 822 are respectively filled in the accommodating spaces 241 and 242 of the first and second magnetizing devices 211 and 212. It can be understood that the term "filled" in this embodiment means that the shape and size of the magnet to be magnetized 820 correspond to the accommodating space 240. When the magnet 820 to be magnetized is placed in the accommodating space 240, The accommodating space 240 is filled, but the magnetic field 820 to be magnetized is placed in the accommodating space 240 and removed from the accommodating space 240. There is still a gap between the magnetizing magnet 820 and the accommodating space 240.

Step S204: energizing the coils, and causing a portion of the accommodating spaces to generate a forward magnetic field and another portion of the accommodating spaces to generate a reverse magnetic field. In this step, the power controller 250 is activated, and when a current enters the coil 230, a magnetic field is simultaneously generated in the accommodating spaces 240. The coil 231 of the first magnetizing device 211 surrounds the accommodating space 241 The direction of the magnetic field in the accommodating space 242 of the first magnetizing device 211 and the second magnetizing device are opposite to the winding direction of the coil 232 of the second magnetizing device 212. The direction of the magnetic field in the accommodating space 242 of 212 is the opposite direction. For example, when the magnetic field in the accommodating space 241 of the first magnetizing device 211 is the forward magnetic field 261, the magnetic field in the accommodating space 242 of the second magnetizing device 212 is the reverse magnetic field 262. The direction of the magnetic field of the forward magnetic field 261 and the reverse magnetic field 262 is opposite.

Step S206: Stop energizing the coil. In this step, when the magnetic forces of the first and second magnets to be magnetized 821, 822 reach a predetermined intensity to form the first and second magnets, the power controller 250 is turned off, and the first and second magnets are separated. The accommodation space 240.

Thereafter, steps S202 to S206 are repeated for other magnets to be magnetized 820 to perform magnetization.

The magnetic roller described in the present invention is suitable for the process of magnetization after assembly, and the magnets of the magnetic roller are first fixed on the outer surface of the axis of the magnetic roller, and then the magnet of the magnetic roller is placed around the magnet. Magnetization is performed in the accommodation space of the coil. When the coil generates a magnetic field, the magnetic field density in the accommodating space is maximum and uniform, so the efficiency of magnetization is high. The magnetization method of the first embodiment of the present invention can control the direction of the magnetic field after the magnet is magnetized by controlling the direction of the current. The magnetization method of the second embodiment of the present invention uses the magnetization apparatus of the present invention to reduce the magnetization time of the magnetic roller by magnetizing a plurality of magnets to be magnetized at one time. Compared with the prior art pre-magnetization assembly process, the present invention can avoid the problem that the magnet is fragmented and the placement position is inaccurate due to excessive suction force.

In the above, it is merely described that the present invention is an embodiment or an embodiment of the technical means for solving the problem, and is not intended to limit the scope of implementation of the present invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

S100~S112‧‧‧Steps

Claims (10)

A magnetizing device for magnetizing a magnetic roller, the magnetic roller comprising an axis and a plurality of magnets to be magnetized, wherein the magnets to be magnetized are fixed on the axis, and the magnetizing device comprises a magnet a first magnetizing device and a second magnetizing device, wherein the first magnetizing device and the second magnetizing device are arranged to correspond to the magnets to be magnetized for simultaneously magnetizing the magnets to be magnetized. The first magnetizing device and the second magnetizing device respectively comprise: a housing having an accommodating space therein for placing any of the magnets to be magnetized to perform the magnet to be magnetized Magnetizing; and a coil surrounding the accommodating space; wherein the coil of the first magnetizing device and the coil of the second magnetizing device are in the same line. The magnetizing apparatus according to claim 1, wherein the material of the first and second magnetizing means is metal. The magnetizing apparatus according to claim 1, wherein the material of the first and second magnetizing means is a non-magnetic material. The magnetizing apparatus according to claim 1, wherein any one of the magnets to be magnetized is filled in the accommodating space of the first or second magnetizing device. The magnetizing apparatus according to claim 1, further comprising a power controller electrically connecting the coils of the magnetizing devices to provide a current to the coil. The magnetizing apparatus according to claim 1, wherein the first magnetizing device is adjacent to the second magnetizing device, and a winding direction of the coil of the first magnetizing device surrounds the accommodating space The winding of the second magnetizing device is opposite to the winding direction of the accommodating space. A magnetization method includes the following steps: providing a magnetic roller, the magnetic roller comprising: an axis, a first magnet to be magnetized, and a second magnet to be magnetized, the first magnet to be magnetized and the second The magnet to be magnetized is fixed on the axis; the first magnet to be magnetized is placed in a receiving space surrounding a coil; and the coil is energized in the forward direction to make the space Produces a forward magnetic field. The magnetization method according to claim 7, further comprising the steps of: stopping energization of the coil; placing the second magnet to be magnetized by the magnetic roller in the accommodating space; and performing the coil The reverse energization causes a reverse magnetic field to be generated in the accommodating space. The magnetization method of claim 8, wherein the forward magnetic field and the magnetic field of the reverse magnetic field are opposite directions. A method of magnetizing, comprising the following steps: Providing a magnetic roller, the magnetic roller includes: an axis and a plurality of magnets to be magnetized, wherein the magnets to be magnetized are fixed on the axis; and the magnets to be magnetized are placed around the coil a plurality of accommodating spaces, wherein the accommodating spaces are corresponding to the magnets to be magnetized; and energizing the coils, and causing a portion of the accommodating spaces to generate a forward magnetic field and another portion The accommodating spaces generate a reverse magnetic field.