CN113182980A

CN113182980A - Integrated spherical graphite grinding device

Info

Publication number: CN113182980A
Application number: CN202110548916.0A
Authority: CN
Inventors: 陈珍梅; 王逸鑫; 曾义; 陈凯; 赵跃衡
Original assignee: Chongqing Huigong Technology Co ltd
Current assignee: Chongqing Huigong Technology Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-07-30

Abstract

The invention provides an integrated spherical graphite grinding device, which relates to the field of graphite processing equipment and comprises a workbench, wherein reinforcing plates are arranged on the top surface of the workbench, the reinforcing plates are connected with the top surface of the workbench through bolts, a rotating shaft is arranged in a groove on the front surface of each reinforcing plate, a processing platform is arranged between the two reinforcing plates, the processing platform is fixed with the surface of the rotating shaft, a U-shaped groove is formed in the front surface of each reinforcing plate, a sliding rod is arranged in the U-shaped groove and is embedded in the U-shaped groove, the sliding rod is movably connected with the U-shaped groove, a rotating handle is arranged at one end of the rotating shaft and is welded with one end of the rotating shaft, the rotating handle is fixed with one end of the sliding rod, a grinding device is arranged above the processing platform, a recovery device is arranged on the top surface of the workbench, and the rotating shaft and the recovery device are adopted, so that the products after processing can be recovered, the structure is simple, the labor force of workers is reduced, and the products after processing are not required to be classified and screened manually, time is saved, and recovery efficiency is improved.

Description

Integrated spherical graphite grinding device

Technical Field

The invention relates to the technical field of graphite processing equipment, in particular to an integrated spherical graphite grinding processing device.

Background

Graphite (graphite) is a crystalline carbon. Hexagonal system, iron black to dark gray. Density 2.25 g/cm 3, hardness 1.5, melting point 3652 deg.c and boiling point 4827 deg.c. Soft, greasy feeling, and conductive. The chemical property is inactive, the corrosion resistance is realized, and the reaction with acid, alkali and the like is not easy. The heat is intensified in air or oxygen, and the carbon dioxide can be generated through combustion. Strong oxidizers will oxidize it to an organic acid. Used as an anti-friction agent and a lubricating material to manufacture crucibles, electrodes, dry batteries and pencil leads. High purity graphite can be used as a neutron moderator on a nuclear reactor. The graphite material is often called carbon essence or black lead, is mistakenly considered as lead in the past, and along with the rapid development of industries such as Chinese metallurgy, chemical engineering, machinery, medical equipment, nuclear energy, automobiles, aerospace and the like, the demands of the industries on graphite and carbon products will continuously increase, the industries of graphite and carbon products in China will keep rapid growth, the spherical graphite takes high-quality high-carbon natural crystalline flake graphite as a raw material, the graphite surface is modified by adopting an advanced processing technology, and the produced graphite product with different fineness and similar to an ellipsoid is characterized by good conductivity, high crystallinity, low cost, high theoretical lithium intercalation capacity, low charge-discharge potential, flatness and the like, is an important part of a lithium ion battery cathode material, and is a replacement product of the cathode material for the production of lithium ion batteries at home and abroad. The conductive material has excellent conductivity and chemical stability, high charge and discharge capacity, long cycle life and environmental protection.

The existing equipment is too troublesome in spherical processing of graphite, too large and complex in equipment, inconvenient in recovery and storage of graphite after processing, and generally judges whether the processed graphite is qualified through manual work in the recovery process, and the qualified and unqualified products are classified manually.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the integrated spherical graphite grinding device, which solves the problems that a goods door for selecting and taking goods and a goods door for storing goods are shared, has strong universality, repeatedly utilizes the space in equipment and has low cost.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: spherical graphite abrasive machining device of integration, comprises a workbench, the workstation top surface all is equipped with the reinforcing plate, and reinforcing plate and workstation top surface bolted connection, be equipped with the axis of rotation in the reinforcing plate positive surface recess, two be equipped with the processing platform between the reinforcing plate, and processing platform and axis of rotation fixed surface, U type groove has been seted up on the reinforcing plate positive surface, U type inslot is equipped with the slide bar, and the slide bar gomphosis in U type inslot, and slide bar and U type groove swing joint, axis of rotation one end is equipped with rotates the handle, and rotates handle and axis of rotation one end welding, and rotates handle and slide bar one end fixed, the processing platform top is equipped with grinding device, the workstation top surface is equipped with recovery unit.

Preferably, grinding device includes L type support, and L type support and reinforcing plate one side bolted connection, the mounting groove has openly been seted up to L type support, be equipped with the slip lead screw in the mounting groove, slip lead screw one end is equipped with linear electric motor, and linear electric motor passes through the shaft coupling key joint with slip lead screw one end.

Preferably, the sliding screw surface is equipped with the sliding block, sliding block and sliding screw surface swing joint, the sliding block openly is fixed with the connecting plate, and the connecting plate is located directly over the processing platform.

Preferably, a loop bar is fixed to the bottom surface of the connecting plate, a transmission gear is arranged on the surface of the loop bar and is in sleeve joint with the surface of the loop bar, a fixing rod is fixed to the bottom surface of the transmission gear, a friction plate is fixed to the bottom surface of the fixing rod and is located right above the machining platform, and the friction plate is matched with the machining platform.

Preferably, the top surface of the connecting plate is provided with a limiting groove, the limiting groove penetrates through the top surface of the connecting plate, a rotating motor is arranged in the limiting groove, the working end of the rotating motor is embedded in the limiting groove and fixed with the connecting plate through a bolt, the working end of the rotating motor is connected with a rotating gear in a keyed mode, and the rotating gear is meshed with the transmission gear.

Preferably, the recovery device comprises a base, the base is connected with the top surface of the workbench through bolts and located on the side face of the reinforcing plate, springs are fixed on the top surface of the base in an array mode, and a vibration box body is fixed at one end of each spring.

Preferably, the vibrating box bottom surface is equipped with vibrating motor, and vibrating motor and vibrating box bottom surface bolted connection, and vibrating motor and base are fixed, be equipped with categorised board in the vibrating box, be equipped with the recovery frame under the categorised board.

Preferably, the classification plate and the two sides of the recovery frame are both fixed with limiting bulges, the limiting bulges are embedded in grooves in the inner wall of the vibration box body, the limiting bulges are movably connected with the grooves in the inner wall of the vibration box body, and the top surface of the recovery frame is provided with filter holes in an array penetrating mode.

Preferably, the vibrating box side is equipped with sealing door, and sealing door and vibrating box coupling, sealing door mutually supports with the vibrating box surface respectively, the sealing door side is fixed with the spliced pole, the vibrating box top surface is fixed with the installation frame, bolted connection has the electro-magnet in the installation frame top surface recess, and electro-magnet and spliced pole magnetism are inhaled.

The working principle is as follows: graphite which is not formed is placed on a processing platform between two reinforcing plates, the graphite to be processed is processed by a grinding device, a bolt on the surface of a sliding rod is rotated after processing, the sliding rod moves in a U-shaped groove after the bolt is loosened, the sliding rod is fixed on the surface of a rotating shaft by the processing platform, the sliding rod is connected with the rotating shaft by a rotating handle, the sliding rod slides, the rotating shaft rotates, the processing platform with the surface fixed on the rotating shaft inclines, a processed product inclines to fall into a prepared vibrating box body, springs are uniformly fixed on the bottom surface of the vibrating box body in an array mode, the vibrating box body is connected with a base, a vibrating motor fixed by bolts on the bottom surface of the vibrating box body works, the vibrating box body starts to vibrate, the product is isolated to the top surface of a classifying plate by the classifying plate in the vibrating box body, and the qualified product falls into a recovery frame below, qualified products are positioned on the top surface of a recovery frame, a vibration box body is driven to vibrate continuously by a vibration motor, the generated powder enters the recovery frame through a filter hole on the top surface of the recovery frame, when qualified and unqualified products are required to be recovered, a switch of an electromagnet is opened, a sealing door which is coupled with the side surface of the vibration box body in a shaft way is opened, the electromagnet is separated from a connecting column which is fixed on the surface of the sealing door, the recovery frame and fixed limiting bulges on the two sides of a classification plate are embedded in a groove on the inner wall of the vibration box body, the classification plate and the recovery frame are respectively drawn out, the products are taken out and recovered, the collected powder is treated at the same time, after the products are placed on a processing product table, a linear motor works, a sliding screw rod in a mounting groove on the front surface of an L-shaped bracket is rotated and fixed with a sliding block by a connecting plate, a friction plate is fixed with the bottom surface of a transmission gear by a fixing rod, the transmission gear cup joints on the surface of a sleeve rod fixed on the bottom surface of a connecting plate, the connecting plate is installed, the sliding screw rod rotates, the sliding block moves on the surface of the sliding screw rod to lift the friction plate, the friction plate is lifted and fixed to the surface of a product in an abutting mode, the linear motor stops, the rotating motor connected through the bolt on the top surface of the connecting plate works, the rotating gear which is in key joint with the working end of the rotating motor rotates, the rotating gear is meshed with the transmission gear, the rotating gear rotates to drive the transmission gear to rotate by the rotating motor, the friction plate rotates to round the product, and after processing, the linear motor rotates reversely to lift the friction plate to discharge and recycle the processed product.

(III) advantageous effects

The invention provides an integrated spherical graphite grinding device. The method has the following beneficial effects:

1. the invention adopts a rotating shaft and a recovery device, graphite which is not formed is placed on a processing platform between two reinforcing plates, the graphite to be processed is processed by a grinding device, a bolt on the surface of a sliding rod is rotated after the processing, the sliding rod moves in a U-shaped chute after the bolt is loosened, the sliding rod is fixed with the surface of the rotating shaft by the processing platform, the sliding rod is connected with the rotating shaft by a rotating handle, the sliding rod slides, the rotating shaft rotates, the processing platform fixed on the surface of the rotating shaft inclines, the processed product inclines and falls into a prepared vibrating box body, springs are fixed on the bottom surface of the vibrating box body in an array manner, the vibrating box body is connected with a base, a vibrating motor fixed by bolts on the bottom surface of the vibrating box body works, the vibrating box body starts to vibrate, the product is isolated to the top surface of a classification plate by the classification plate in the vibrating box body, qualified product falls into the recovery frame of below, and qualified product is located retrieves the frame top surface, wherein the powder that produces get into through the filtration pore of retrieving the frame top surface retrieve in the frame can, realized can retrieving the product after processing, simple structure reduces staff's labour, need not the manual work and classify the screening to the product after processing, save time improves recovery efficiency.

2. The invention adopts a grinding device, after a product is placed on a processing product table, a sliding screw rod in a mounting groove on the front surface of an L-shaped bracket is rotated through the work of a linear motor, the sliding screw rod is fixed with a sliding block through a connecting plate, a friction plate is fixed with the bottom surface of a transmission gear through a fixed rod, the transmission gear is sleeved on the surface of a sleeve rod fixed on the bottom surface of the connecting plate, the connecting plate is installed, the sliding screw rod is rotated, the sliding block moves on the surface of the sliding screw rod to lift the friction plate, when the friction plate is lifted to the surface of the product and is abutted and fixed, the linear motor is stopped, a rotating motor connected with a bolt on the top surface of the connecting plate works, a rotating gear keyed on the working end of the rotating motor is rotated, the rotating gear is meshed with the transmission gear through the rotating motor, the rotating gear is driven to rotate the friction plate, the friction plate is rotated to carry out rounding treatment on the product, the back of processing with linear electric motor reversal with the friction plate rise to the product after the processing carry out the unloading retrieve can, realized can carrying out effectual rounding to graphite and handle, simple structure, resources are saved, convenient and fast.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is an enlarged view of the recycling apparatus of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is an enlarged view taken at FIG. 3-A;

FIG. 5 is a cross-sectional view of the present invention;

fig. 6 is a side view of the present invention.

Wherein, 1, a workbench; 2. a reinforcing plate; 3. a processing platform; 4. a rotating shaft; 5. rotating the handle; 6. a U-shaped groove; 7. a slide bar; 8. a grinding device; 801. an L-shaped bracket; 802. mounting grooves; 803. a sliding screw rod; 804. a slider; 805. a linear motor; 806. a connecting plate; 807. a limiting groove; 808. rotating the motor; 809. a loop bar; 810. a rotating gear; 811. a transmission gear; 812. fixing the rod; 813. a friction plate; 9. a recovery device; 901. a base; 902. a spring; 903. a vibration motor; 904. vibrating the box body; 905. a classification plate; 906. a limiting bulge; 907. a sealing door; 908. recovering the frame; 909. a filtration pore; 910. a mounting frame; 911. an electromagnet; 912. connecting columns.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-6, an integrated spherical graphite grinding device comprises a workbench 1, wherein reinforcing plates 2 are arranged on the top surface of the workbench 1, the reinforcing plates 2 are connected with the top surface of the workbench 1 through bolts, a rotating shaft 4 is arranged in a groove on the front surface of each reinforcing plate 2, a processing platform 3 is arranged between the two reinforcing plates 2, the processing platform 3 is fixed on the surface of the rotating shaft 4, a U-shaped groove 6 is arranged on the front surface of each reinforcing plate 2, a sliding rod 7 is arranged in each U-shaped groove 6, the sliding rod 7 is movably connected with the U-shaped groove 6, a rotating handle 5 is arranged at one end of the rotating shaft 4, the rotating handle 5 is welded with one end of the rotating shaft 4, the rotating handle 5 is fixed with one end of the sliding rod 7, a grinding device 8 is arranged above the processing platform 3, a recovery device 9 is arranged on the top surface of the workbench 1, the recovery device 9 comprises a base 901, and the base 901 is connected with the top surface of the workbench 1 through bolts, the base 901 is positioned on the side surface of the reinforcing plate 2, the top surface of the base 901 is fixed with springs 902 in an array manner, one end of each spring 902 is fixed with a vibration box 904, the bottom surface of the vibration box 904 is provided with a vibration motor 903, the vibration motor 903 is connected with the bottom surface of the vibration box 904 in a bolt manner, the vibration motor 903 is fixed with the base 901, a classification plate 905 is arranged in the vibration box 904, a recovery frame 908 classification plate 905 is arranged right below the classification plate 905, two sides of the recovery frame 908 are both fixed with limit bulges 906, the limit bulges 906 are embedded in grooves on the inner wall of the vibration box 904, the limit bulges 906 are movably connected with the grooves on the inner wall of the vibration box 904, the top surface of the recovery frame 908 is provided with filter holes in an array manner, the graphite which is not formed is placed on the processing platform 3 between the two reinforcing plates 2, the graphite to be processed is processed by a grinding device 8, the bolts on the surface of the sliding rod 7 are rotated after being processed, and the bolts are loosened 909, the sliding rod 7 moves in the U-shaped groove 6, the surface of the sliding rod 7 is fixed with the surface of the rotating shaft 4 through the processing platform 3, the sliding rod 7 is connected with the rotating shaft 4 through the rotating handle 5, the sliding rod 7 slides, the rotating shaft 4 rotates, the processing platform 3 fixed on the surface of the rotating shaft 4 inclines, a processed product falls into the prepared vibration box 904 in an inclined way, the vibrating box 904 is connected with the base 901 through the springs 902 fixed on the bottom surface of the vibrating box 904 in an array manner, the vibration motor 903 fixed by bolts at the bottom of the vibration box body 904 works, the vibration box body 904 starts to vibrate, products are isolated to the top surface of the classification plate 905 by the classification plate 905 in the vibration box body 904, qualified products fall into the recovery frame 908 at the lower part, qualified products are positioned at the top surface of the recovery frame 908, as the vibration motor 903 ceaselessly drives the vibration box body 904 to vibrate, the powder generated therein enters the recycling frame 908 through the filtering holes 909 formed in the top surface of the recycling frame 908.

The side surface of the vibration box body 904 is provided with a sealing door 907, the sealing door 907 is in shaft connection with the vibration box body 904, the sealing door 907 is matched with the surface of the vibration box body 904, a connecting column 912 is fixed on the side surface of the sealing door 907, an installation frame 910 is fixed on the top surface of the vibration box body 904, an electromagnet 911 is in bolt connection with a groove in the top surface of the installation frame 910, the electromagnet 911 and the connecting column 912 are magnetically attracted, when qualified and unqualified products are required to be recovered, a switch of the electromagnet 911 is opened, the sealing door 907 in shaft connection with the side surface of the vibration box body 904 is opened, the electromagnet 911 is separated from the connecting column 912 in surface connection with the sealing door 907, the recovery frame 908 and fixed limiting protrusions 906 on the two sides of the classification plate 905 are embedded in a groove in the inner wall of the vibration box body 904, the classification plate 905 and the recovery frame are respectively extracted, the products can be taken out and recovered 908, and collected powder is processed at the same time.

Example two:

as shown in fig. 1-6, the grinding device 8 includes an L-shaped bracket 801, the L-shaped bracket 801 is bolted to one side of the reinforcing plate 2, a mounting groove 802 is formed in the front of the L-shaped bracket 801, a sliding screw 803 is disposed in the mounting groove 802, a linear motor 805 is disposed at one end of the sliding screw 803, the linear motor 805 is keyed with one end of the sliding screw 803 through a coupling, a sliding block 804 is disposed on the surface of the sliding screw 803, the sliding block 804 is movably connected with the surface of the sliding screw 803, a connecting plate 806 is fixed on the front of the sliding block 804, the connecting plate 806 is located above the processing platform 3, a loop bar 809 is fixed on the bottom surface of the connecting plate 806, a transmission gear 811 is disposed on the surface of the loop bar 809, the transmission gear 811 is sleeved with the loop bar 809, a fixing rod 812 is fixed on the bottom surface of the fixing rod 812, the friction plate 813 is located above the processing platform 3, the friction plate 813 is matched with the processing platform 3, the top surface of a connecting plate 806 is provided with a limiting groove 807, the limiting groove 807 penetrates through the top surface of the connecting plate 806, a rotating motor 808 is arranged in the limiting groove 807, the working end of the rotating motor 808 is embedded in the limiting groove 807, the rotating motor 808 is fixed with the connecting plate 806 by bolts, the working end of the rotating motor 808 is keyed with a rotating gear 810, the rotating gear 810 is meshed with a transmission gear 811, after a product is placed on a processing product table, a linear motor 805 is used for working, a sliding screw rod 803 in a front mounting groove 802 of an L-shaped bracket 801 is rotated and fixed with a sliding block 804 by the connecting plate 806, a fixing rod 812 is used for fixing the bottom surface of the friction plate 813 with the transmission gear 811, the transmission gear 811 is sleeved on the surface of a sleeve rod 809 fixed on the bottom surface of the connecting plate 806, the connecting plate 806 is installed, the sliding screw rod 803 rotates, the sliding block 804 moves on the surface of the sliding screw rod 803 to lift the friction plate 813 to abut against the surface of the product, the linear motor 805 stops, the rotating motor 808 connected through the top surface bolt of the connecting plate 806 works, the rotating gear 810 connected with the working end of the rotating motor 808 in a key joint mode rotates, the rotating gear 810 is meshed with the transmission gear 811 through the rotating gear 810, the rotating gear 810 is rotated by the rotating motor 808 to drive the transmission gear 811 to rotate, the friction plate 813 is rotated to round a product, and after machining, the linear motor 805 is rotated reversely to lift the friction plate 813 to perform blanking recovery on the machined product.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. However, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Spherical graphite abrasive machining device of integration, including workstation (1), its characterized in that: the top surface of the workbench (1) is provided with reinforcing plates (2), the reinforcing plates (2) are connected with the top surface of the workbench (1) through bolts, a rotating shaft (4) is arranged in a groove in the front of each reinforcing plate (2), a processing platform (3) is arranged between every two reinforcing plates (2), the processing platform (3) is fixed to the surface of the rotating shaft (4), a U-shaped groove (6) is formed in the front of each reinforcing plate (2), a sliding rod (7) is arranged in the U-shaped groove (6), the sliding rod (7) is embedded in the U-shaped groove (6) and movably connected with the U-shaped groove (6), a rotating handle (5) is arranged at one end of each rotating shaft (4), the rotating handle (5) is welded to one end of the rotating shaft (4), the rotating handle (5) is fixed to one end of the sliding rod (7), a grinding device (8) is arranged above the processing platform (3), and a recovery device (9) is arranged on the top surface of the workbench (1).

2. The integrated spherical graphite grinding device according to claim 1, wherein: grinding device (8) include L type support (801), and L type support (801) and reinforcing plate (2) one side bolted connection, mounting groove (802) have openly been seted up to L type support (801), be equipped with slip lead screw (803) in mounting groove (802), slip lead screw (803) one end is equipped with linear electric motor (805), and linear electric motor (805) and slip lead screw (803) one end pass through the shaft coupling key joint.

3. The integrated spherical graphite grinding device according to claim 2, wherein: sliding block (804) are arranged on the surface of the sliding screw rod (803), the sliding block (804) is movably connected with the surface of the sliding screw rod (803), a connecting plate (806) is fixed on the front face of the sliding block (804), and the connecting plate (806) is located right above the machining platform (3).

4. The integrated spherical graphite grinding device according to claim 3, wherein: a loop bar (809) is fixed on the bottom surface of the connecting plate (806), a transmission gear (811) is arranged on the surface of the loop bar (809), the transmission gear (811) is sleeved on the surface of the loop bar (809), a fixing rod (812) is fixed on the bottom surface of the transmission gear (811), a friction plate (813) is fixed on the bottom surface of the fixing rod (812), the friction plate (813) is located right above the processing platform (3), and the friction plate (813) is matched with the processing platform (3).

5. The integrated spherical graphite grinding device according to claim 4, wherein: the top surface of the connecting plate (806) is provided with a limiting groove (807), the limiting groove (807) penetrates through the top surface of the connecting plate (806), a rotating motor (808) is arranged in the limiting groove (807), the working end of the rotating motor (808) is embedded in the limiting groove (807), the rotating motor (808) is fixed with the connecting plate (806) through bolts, the working end of the rotating motor (808) is in keyed joint with a rotating gear (810), and the rotating gear (810) is meshed with a transmission gear (811).

6. The integrated spherical graphite grinding device according to claim 1, wherein: the recycling device (9) comprises a base (901), the base (901) is in bolted connection with the top surface of the workbench (1), the base (901) is located on the side surface of the reinforcing plate (2), springs (902) are fixed on the top surface of the base (901) in an array mode, and a vibration box body (904) is fixed at one end of each spring (902).

7. The integrated spherical graphite grinding device according to claim 6, wherein: vibrating box (904) bottom surface is equipped with vibrating motor (903), and vibrating motor (903) and vibrating box (904) bottom surface bolted connection, and vibrating motor (903) are fixed with base (901), be equipped with categorised board (905) in vibrating box (904), be equipped with under categorised board (905) and retrieve frame (908).

8. The integrated spherical graphite grinding device according to claim 7, wherein: categorised board (905) all are fixed with spacing arch (906) with retrieving frame (908) both sides, and spacing arch (906) gomphosis in the recess of vibrating box (904) inner wall, and spacing arch (906) and vibrating box (904) inner wall recess swing joint, retrieve frame (908) top surface equal array and run through and have filtered hole (909).

9. The integrated spherical graphite grinding device according to claim 6, wherein: the vibrating box body (904) is provided with a sealing door (907) on the side face, the sealing door (907) is in shaft connection with the vibrating box body (904), the sealing door (907) is matched with the surface of the vibrating box body (904) respectively, a connecting column (912) is fixed on the side face of the sealing door (907), an installation frame (910) is fixed on the top face of the vibrating box body (904), an electromagnet (911) is connected with a groove in the top face of the installation frame (910) in a bolt mode, and the electromagnet (911) is magnetically attracted with the connecting column (912).