WO2020173037A1 - 用于钕铁硼永磁体加工的筛粉装置 - Google Patents

用于钕铁硼永磁体加工的筛粉装置 Download PDF

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Publication number
WO2020173037A1
WO2020173037A1 PCT/CN2019/096054 CN2019096054W WO2020173037A1 WO 2020173037 A1 WO2020173037 A1 WO 2020173037A1 CN 2019096054 W CN2019096054 W CN 2019096054W WO 2020173037 A1 WO2020173037 A1 WO 2020173037A1
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Prior art keywords
fixedly connected
plate
hole
box
powder
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PCT/CN2019/096054
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English (en)
French (fr)
Inventor
李军
陈永奎
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江苏普隆磁电有限公司
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Publication of WO2020173037A1 publication Critical patent/WO2020173037A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens

Definitions

  • the invention relates to the technical field of processing neodymium iron boron permanent magnets, in particular to a powder screening device for processing neodymium iron boron permanent magnets.
  • NdFeB magnets can be divided into two types: bonded NdFeB and sintered NdFeB. Bonding is actually injection molding, while sintering is vacuumed and heated at high temperature. NdFeB magnets have the best performance at room temperature. Permanent magnets with strong magnetic force (the magnetism is second only to holmium magnets at absolute zero, but the magnetism is much stronger than all known permanent magnets at room temperature), the powder needs to be screened during the processing of neodymium iron boron permanent magnets.
  • the screening effect of the existing sieving device for NdFeB permanent magnet processing is not good, and the particles larger and smaller than the NdFeB powder cannot be removed at the same time during the screening, resulting in the screened NdFeB
  • the powder contains more impurities, which reduces the performance of the NdFeB permanent magnet.
  • the purpose of the present invention is to provide a powder sieving device for the processing of neodymium iron boron permanent magnets, which has the advantage of good sieving effect, and solves the problem of poor sieving effect of the existing sieving device for processing neodymium iron boron permanent magnets. It is impossible to remove particles larger and smaller than the NdFeB powder at the same time, resulting in the problem that the NdFeB powder after the screening is doped with more impurities, which reduces the performance of the NdFeB permanent magnet.
  • a powder screening device processed by neodymium iron boron permanent magnets including a box body, a powder screening mechanism and a collecting mechanism, and both sides of the bottom of the box body are fixedly connected with box body support legs ,
  • the top of the box body is provided with a feed inlet
  • the top and bottom of the left side of the box are respectively provided with a first through hole and a second discharge hole
  • the top and bottom of the right side of the box are respectively provided with
  • the inner cavity of the box body is provided with a powder screening mechanism
  • the left side of the left supporting leg is provided with a collecting mechanism.
  • the powder screening mechanism includes a first sieve plate and a second sieve plate, the top of the first sieve plate is provided with a first sieve hole, and the left side of the first sieve plate is fixedly connected with a first connecting plate ,
  • the left side of the first connecting plate penetrates the first through hole, the top of the first connecting plate is fixedly connected with a first spring, the top of the first spring is fixedly connected with a first fixing plate, and the first The right side of the fixed plate is fixedly connected to the left side of the box body, the bottom of the first connecting plate is fixedly connected with a vibration motor, the right side of the first screen plate is fixedly connected with a first guide plate, the first The right side of the guide plate penetrates the first discharge hole, the bottom of the first guide plate is fixedly connected with a second spring, and the bottom of the second spring is fixedly connected with a second connecting plate, and the second connecting plate The left side penetrates the second through hole and is fixedly connected to the right side of the second screen plate, the top of the first
  • the collection mechanism includes a connecting rod, the right side of the connecting rod is fixedly connected to the left side of the left support leg, the left side of the connecting rod is fixedly connected with a collection box, and the left side of the collection box is fixed.
  • the top of the collection box is provided with a collection port, the bottom of the collection port is provided with a discharge pipe, and the bottom of the inner cavity of the collection port is fixedly connected with a baffle plate.
  • the aperture of the first mesh may be 7-9um, and the aperture of the second mesh may be 1-2um.
  • the first mesh and the second mesh are both circular holes.
  • the invention facilitates the vibration of the neodymium iron boron powder during the screening, and at the same time facilitates the simultaneous removal of particles larger and smaller than the neodymium iron boron powder, improves the purity of the neodymium iron boron powder, and makes the neodymium iron boron permanent magnet
  • the performance of the powder is better and the screening efficiency is improved.
  • the collection mechanism the powder can be collected, which is convenient for further processing, which solves the problem of the poor screening effect of the existing NdFeB permanent magnets.
  • Figure 1 is a schematic diagram of the structure of the present invention
  • Figure 2 is a schematic diagram of the structure of the powder screening mechanism of the present invention.
  • Figure 3 is a schematic diagram of the structure of the collection mechanism of the present invention.
  • the powder screening device used for the processing of neodymium iron boron permanent magnets includes a box body 1, a powder screening mechanism 4 and a collecting mechanism 9. Both sides of the bottom of the box body 1 are fixedly connected with box body 1 support legs 2.
  • the top of the box 1 is provided with a feeding port 3, the top and bottom of the left side of the box 1 are respectively provided with a first through hole 5 and a second discharge hole 8, and the top and bottom of the right side of the box 1 are respectively opened
  • the top is provided with a first screen hole 403, the aperture of the first screen hole 403 can be 7-9um, the left side of the first screen plate 401 is fixedly connected with a first connecting plate 404, and the left side of the first connecting plate 404 penetrates the first Through hole 5, the top of the first connecting plate 404 is fixedly connected with a first spring 405, the top of the first spring 405 is fixedly connected with a first fixing plate 406, and the right side of the first fixing plate 406 is fixedly connected to the left of the box 1 Side, the bottom of the first connecting plate 404 is fixedly connected with a vibration motor 407, the right side of the first sieve plate 401 is fixedly connected with a first guide plate 408, and the right side of the first guide plate 408 penetrates the first discharge hole 6
  • the bottom of the first guide plate 408 is fixedly connected with a second spring 409, and the bottom of the second spring 409 is fixedly connected with a second connecting plate 410.
  • the left side of the second connecting plate 410 penetrates the second through hole 7 and is connected to the second
  • the right side of the sieve plate 402 is fixedly connected.
  • the top of the second sieve plate 402 is provided with a second sieve hole 411.
  • the diameter of the second sieve hole 411 can be 1-2um.
  • the first sieve hole 403 and the second sieve hole 411 are both A circular hole, the left side of the second sieve plate 402 is fixedly connected with a second guide plate 412, the left side of the second guide plate 412 penetrates the second discharge hole 8, and the bottom of the second guide plate 412 is fixedly connected with The third spring 413, the bottom of the third spring 413 is fixedly connected with a second fixing plate 414, the right side of the second fixing plate 414 is fixedly connected to the left side of the box 1, the use of the powder screening mechanism 4 is convenient for NdFeB powder Vibrate during screening, and it is convenient to remove particles larger and smaller than NdFeB powder at the same time, which improves the purity of NdFeB powder, makes the performance of NdFeB permanent magnets more excellent, and improves the efficiency of screening.
  • the left support leg 2 is provided with a collection mechanism 9 on the left side.
  • the collection mechanism 9 includes a connecting rod 901.
  • the right side of the connecting rod 901 is fixedly connected to the left side of the left support leg 2, and the left side of the connecting rod 901 is fixedly connected to a collection box 902 for collecting
  • the left side of the box 902 is fixedly connected to the left side of the second guide plate 412, the top of the collection box 902 is provided with a collection port 904, the bottom of the collection port 904 is provided with a discharge tube 905, and the bottom of the inner cavity of the collection port 904 is fixedly connected
  • the device should be carried out in an oxygen-free environment such as an inert atmosphere during the powder screening process.
  • the collection mechanism 9 can be used for powder It is collected to facilitate further processing, which solves the problem of the existing sieve powder in the processing of NdFeB permanent magnets.
  • the screening effect is not good, the particles larger and smaller than the NdFeB powder cannot be removed at the same time during the screening, which leads to the problem that the NdFeB powder after the screening is doped with more impurities and reduces the performance of the NdFeB permanent magnet.
  • the operation of the vibration motor 407 is controlled by the external controller.
  • the vibration motor 407 drives the first screen plate 401 to vibrate through the first connecting plate 404, and the first screen plate 401 drives the first guide material 408 to vibrate, thereby driving the second spring 409 drives the second connecting plate 410 to vibrate the second sieve plate 402.
  • the plate puts the powder to be screened into the box 1 through the feed port 3, and the powder falls to the top of the first sieve plate 401. The particles remain on the top of the first sieve plate 401 and flow out from the first guide plate 408.
  • the particles smaller than the NdFeB powder pass through the second sieve hole 411 and are The discharge port 10 flows out, and what remains on the top of the second sieve plate 402 is the sieved NdFeB powder, which flows from the second guide plate 412 to the collection mechanism 9 for collection.
  • the powder sieving device for the processing of NdFeB permanent magnets through the use of the powder sieving mechanism 4, facilitates the vibration of the NdFeB powder during screening, and facilitates the reduction of particles larger and smaller than the NdFeB powder
  • the removal at the same time improves the purity of the NdFeB powder, makes the performance of the NdFeB permanent magnet more excellent, and improves the screening efficiency.
  • the collecting mechanism 9 the powder can be collected, which is convenient for further processing.
  • the screening effect of the existing sieving device for the processing of NdFeB permanent magnets is not good, and the particles larger and smaller than the NdFeB powder cannot be removed at the same time during the screening, resulting in the NdFeB powder after the screening is mixed with more impurities , Reducing the performance of neodymium iron boron permanent magnets.

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  • Combined Means For Separation Of Solids (AREA)

Abstract

一种用于钕铁硼永磁体加工的筛粉装置，包括箱体（1）、筛粉机构（4）和收集机构（9），所述箱体（1）底部的两侧均固定连接有箱体（1）的支撑腿（2），所述箱体（1）的顶部开设有进料口（3），所述箱体（1）左侧的顶部和底部分别开设有第一通孔（5）和第二出料孔（8），所述箱体（1）右侧的顶部和底部分别开设有第一出料孔（6）和第二通孔（7），所述箱体（1）的内腔设置有筛粉机构（4），左侧支撑腿（2）的左侧设置有收集机构（9）。通过使用筛粉机构（4），方便钕铁硼粉末在筛选时进行振动，同时方便将大于和小于目标钕铁硼粉末的颗粒同时去除，提高了钕铁硼粉末的纯度，使钕铁硼永磁体的性能更加优良。

Description

用于钕铁硼永磁体加工的筛粉装置 技术领域
本发明涉及钕铁硼永磁铁加工技术领域，具体为用于钕铁硼永磁体加工的筛粉装置。
 背景技术
钕铁硼磁铁可分为粘结钕铁硼和烧结钕铁硼两种，粘结实际上就是注塑成型，而烧结是抽真空通过高温加热成型，钕铁硼磁铁为目前为止在常温下具有最强磁力的永久磁铁（在绝对零度时磁性仅次于钬磁铁，但是在常温下磁性远远强于目前已知的所有永久磁铁），钕铁硼永磁铁加工时需要对粉末进行筛选，以此来获得良好性能的磁体，现有的钕铁硼永磁体加工的筛粉装置筛选效果不好，在进行筛选时无法将大于和小于钕铁硼粉末的颗粒同时去除，导致筛选后的钕铁硼粉末掺有的杂质较多，降低钕铁硼永磁体的性能。
 技术问题
本发明的目的在于提供用于钕铁硼永磁体加工的筛粉装置，具备筛选效果好的优点，解决了现有的钕铁硼永磁体加工的筛粉装置筛选效果不好，在进行筛选时无法将大于和小于钕铁硼粉末的颗粒同时去除，导致筛选后的钕铁硼粉末掺有的杂质较多，降低钕铁硼永磁体的性能的问题。
 技术解决方案
为实现上述目的，本发明提供如下技术方案：钕铁硼永磁体加工的筛粉装置，包括箱体、筛粉机构和收集机构，所述箱体底部的两侧均固定连接有箱体支撑腿，所述箱体的顶部开设有进料口，所述箱体左侧的顶部和底部分别开设有第一通孔和第二出料孔，所述箱体右侧的顶部和底部分别开设有第一出料孔和第二通孔，所述箱体的内腔设置有筛粉机构，左侧支撑腿的左侧设置有收集机构。
优选的，所述筛粉机构包括第一筛板和第二筛板，所述第一筛板的顶部开设有第一筛孔，所述第一筛板的左侧固定连接有第一连接板，所述第一连接板的左侧贯穿第一通孔，所述第一连接板的顶部固定连接有第一弹簧，所述第一弹簧的顶部固定连接有第一固定板，所述第一固定板的右侧固定连接于箱体的左侧，所述第一连接板的底部固定连接有振动电机，所述第一筛板的右侧固定连接有第一导料板，所述第一导料板的右侧贯穿第一出料孔，所述第一导料板的底部固定连接有第二弹簧，所述第二弹簧的底部固定连接有第二连接板，所述第二连接板的左侧贯穿第二通孔并与第二筛板的右侧固定连接，所述第二筛板的顶部开设有第二筛孔，所述第二筛板的左侧固定连接有第二导料板，所述第二导料板的左侧贯穿第二出料孔，所述第二导料板的底部固定连接有第三弹簧，所述第三弹簧的底部固定连接有第二固定板，所述第二固定板的右侧固定连接于箱体的左侧。
优选的，所述收集机构包括连接杆，所述连接杆的右侧固定连接于左侧支撑腿的左侧，所述连接杆的左侧固定连接有收集箱，所述收集箱的左侧固定连接于第二导料板的左侧，所述收集箱的顶部开设有收集口，所述收集口的底部开设有出料管，所述收集口内腔的底部固定连接有导流板。
优选的，所述第一筛孔的孔径可以为7-9um，所述第二筛孔的孔径可以为1-2um。
优选的，所述第一筛孔与第二筛孔均为圆形孔。
 有益效果
与现有技术相比，本发明的有益效果如下：
本发明通过筛粉机构的使用，方便钕铁硼粉末在筛选时进行振动，同时方便将大于和小于钕铁硼粉末的颗粒同时去除，提高了钕铁硼粉末的纯度，使钕铁硼永磁体的性能更加优良，提高了筛选效率，通过收集机构的使用，可对粉末进行收集，方便对其进行进一步加工，解决了现有的钕铁硼永磁体加工的筛粉装置筛选效果不好，在进行筛选时无法将大于和小于钕铁硼粉末的颗粒同时去除，导致筛选后的钕铁硼粉末掺有的杂质较多，降低钕铁硼永磁体的性能的问题。
 附图说明
图1为本发明结构示意图；
图2为本发明筛粉机构结构示意图；
图3为本发明收集机构结构示意图。
图中：1箱体、2支撑腿、3进料口、4筛粉机构、401第一筛板、402第二筛板、403第一筛孔、404第一连接板、405第一弹簧、406第一固定板、407振动电机、408第一导料板、409第二弹簧、410第二连接板、411第二筛孔、412第二导料板、413第三弹簧、414第二固定板、5第一通孔、6第一出料孔、7第二通孔、8第二出料孔、9收集机构、901连接杆、902收集箱、903导流板、904收集口、905出料管、10出料口。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1-3，用于钕铁硼永磁体加工的筛粉装置，包括箱体1、筛粉机构4和收集机构9，箱体1底部的两侧均固定连接有箱体1支撑腿2，箱体1的顶部开设有进料口3，箱体1左侧的顶部和底部分别开设有第一通孔5和第二出料孔8，箱体1右侧的顶部和底部分别开设有第一出料孔6和第二通孔7，箱体1的内腔设置有筛粉机构4，筛粉机构4包括第一筛板401和第二筛板402，第一筛板401的顶部开设有第一筛孔403，第一筛孔403的孔径可以为7-9um，第一筛板401的左侧固定连接有第一连接板404，第一连接板404的左侧贯穿第一通孔5，第一连接板404的顶部固定连接有第一弹簧405，第一弹簧405的顶部固定连接有第一固定板406，第一固定板406的右侧固定连接于箱体1的左侧，第一连接板404的底部固定连接有振动电机407，第一筛板401的右侧固定连接有第一导料板408，第一导料板408的右侧贯穿第一出料孔6，第一导料板408的底部固定连接有第二弹簧409，第二弹簧409的底部固定连接有第二连接板410，第二连接板410的左侧贯穿第二通孔7并与第二筛板402的右侧固定连接，第二筛板402的顶部开设有第二筛孔411，第二筛孔411的孔径可以为1-2um，第一筛孔403与第二筛孔411均为圆形孔，第二筛板402的左侧固定连接有第二导料板412，第二导料板412的左侧贯穿第二出料孔8，第二导料板412的底部固定连接有第三弹簧413，第三弹簧413的底部固定连接有第二固定板414，第二固定板414的右侧固定连接于箱体1的左侧，筛粉机构4的使用，方便钕铁硼粉末在筛选时进行振动，同时方便将大于和小于钕铁硼粉末的颗粒同时去除，提高了钕铁硼粉末的纯度，使钕铁硼永磁体的性能更加优良，提高了筛选效率，左侧支撑腿2的左侧设置有收集机构9，收集机构9包括连接杆901，连接杆901的右侧固定连接于左侧支撑腿2的左侧，连接杆901的左侧固定连接有收集箱902，收集箱902的左侧固定连接于第二导料板412的左侧，收集箱902的顶部开设有收集口904，收集口904的底部开设有出料管905，收集口904内腔的底部固定连接有导流板903，该装置在筛粉过程中应在惰性气氛等无氧环境下进行，钕铁硼粉末尺寸在3-4um时获得的磁性较为优良，通过收集机构9的使用，可对粉末进行收集，方便对其进行进一步加工，解决了现有的钕铁硼永磁体加工的筛粉装置筛选效果不好，在进行筛选时无法将大于和小于钕铁硼粉末的颗粒同时去除，导致筛选后的钕铁硼粉末掺有的杂质较多，降低钕铁硼永磁体的性能的问题。
使用时，通过外设控制器控制振动电机407运行，振动电机407通过第一连接板404带动第一筛板401振动，第一筛板401带动第一导料408振动，从而通过带动第二弹簧409带动第二连接板410，使第二筛板402振动，板通过进料口3将待筛选粉末放入箱体1内，粉末落至第一筛板401顶部，将大于钕铁硼粉末的颗粒留在第一筛板401的顶部，并由第一导料板408流出，当粉末落至第二筛板402顶部时，小于钕铁硼粉末的颗粒由第二筛孔411通过，并由出料口10流出，留在第二筛板402顶部的为筛选后的钕铁硼粉末，由第二导料板412流至收集机构9进行收集。
综上所述：该用于钕铁硼永磁体加工的筛粉装置，通过筛粉机构4的使用，方便钕铁硼粉末在筛选时进行振动，同时方便将大于和小于钕铁硼粉末的颗粒同时去除，提高了钕铁硼粉末的纯度，使钕铁硼永磁体的性能更加优良，提高了筛选效率，通过收集机构9的使用，可对粉末进行收集，方便对其进行进一步加工，解决了现有的钕铁硼永磁体加工的筛粉装置筛选效果不好，在进行筛选时无法将大于和小于钕铁硼粉末的颗粒同时去除，导致筛选后的钕铁硼粉末掺有的杂质较多，降低钕铁硼永磁体的性能的问题。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (5)

  1. 用于钕铁硼永磁体加工的筛粉装置，包括箱体（1）、筛粉机构（4）和收集机构（9），其特征在于：所述箱体（1）底部的两侧均固定连接有箱体（1）支撑腿（2），所述箱体（1）的顶部开设有进料口（3），所述箱体（1）左侧的顶部和底部分别开设有第一通孔（5）和第二出料孔（8），所述箱体（1）右侧的顶部和底部分别开设有第一出料孔（6）和第二通孔（7），所述箱体（1）的内腔设置有筛粉机构（4），左侧支撑腿（2）的左侧设置有收集机构（9）。
  2. 根据权利要求1所述的用于钕铁硼永磁体加工的筛粉装置，其特征在于：所述筛粉机构（4）包括第一筛板（401）和第二筛板（402），所述第一筛板（401）的顶部开设有第一筛孔（403），所述第一筛板（401）的左侧固定连接有第一连接板（404），所述第一连接板（404）的左侧贯穿第一通孔（5），所述第一连接板（404）的顶部固定连接有第一弹簧（405），所述第一弹簧（405）的顶部固定连接有第一固定板（406），所述第一固定板（406）的右侧固定连接于箱体（1）的左侧，所述第一连接板（404）的底部固定连接有振动电机（407），所述第一筛板（401）的右侧固定连接有第一导料板（408），所述第一导料板（408）的右侧贯穿第一出料孔（6），所述第一导料板（408）的底部固定连接有第二弹簧（409），所述第二弹簧（409）的底部固定连接有第二连接板（410），所述第二连接板（410）的左侧贯穿第二通孔（7）并与第二筛板（402）的右侧固定连接，所述第二筛板（402）的顶部开设有第二筛孔（411），所述第二筛板（402）的左侧固定连接有第二导料板（412），所述第二导料板（412）的左侧贯穿第二出料孔（8），所述第二导料板（412）的底部固定连接有第三弹簧（413），所述第三弹簧（413）的底部固定连接有第二固定板（414），所述第二固定板（414）的右侧固定连接于箱体（1）的左侧。
  3. 根据权利要求1所述的用于钕铁硼永磁体加工的筛粉装置，其特征在于：所述收集机构（9）包括连接杆（901），所述连接杆（901）的右侧固定连接于左侧支撑腿（2）的左侧，所述连接杆（901）的左侧固定连接有收集箱（902），所述收集箱（902）的左侧固定连接于第二导料板（412）的左侧，所述收集箱（902）的顶部开设有收集口（904），所述收集口（904）的底部开设有出料管（905），所述收集口（904）内腔的底部固定连接有导流板（903）。
  4. 根据权利要求2所述的用于钕铁硼永磁体加工的筛粉装置，其特征在于：所述第一筛孔（403）的孔径可以为7-9um，所述第二筛孔（411）的孔径可以为1-2um。
  5. 根据权利要求1所述的用于钕铁硼永磁体加工的筛粉装置，其特征在于：所述第一筛孔（403）与第二筛孔（411）均为圆形孔。
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