Forming and pressing equipment for neodymium-iron-boron magnet production

Abstract

The invention relates to the technical field of magnet pressing forming, in particular to forming pressing equipment for neodymium-iron-boron magnet production. Comprising a press machine body, a mounting frame, a conveyor I, rotating rods I, connecting columns, connecting sleeves, rotating rods II and the like, the mounting frame is connected into the press machine body, the conveyor I is mounted on the mounting frame, the rotating rods I are symmetrically placed on the mounting frame, the connecting columns are symmetrically connected into the press machine body, and the connecting sleeves are rotationally connected to the connecting columns on the left rear side; and the two rotating rods II are respectively mounted on the connecting sleeve and the connecting column on the right rear side. Two rolls of plastic films can be unfolded above the conveyor I through cooperation of the rotating rod I and the rotating rod II, then magnetic powder on the surface of a magnet blank can be automatically removed through the powder removing mechanism, then the upper roll of plastic film and the lower roll of plastic film are folded and sealed through hot melting, the magnet blank can be automatically sealed and packaged, time and labor are saved, and the production efficiency is improved. The production efficiency is improved, the sealing performance of the magnet blank can be ensured, and the product quality is further ensured.

Description

Technical Field

[0001] The invention relates to the technical field of magnet pressing and forming, and in particular to a forming and pressing device for producing NdFeB magnets. Background Art

[0002] NdFeB magnet is a high-performance rare earth permanent magnet material, named because it is mainly composed of three elements: neodymium, iron and boron. Due to its extremely high remanence, coercive force and maximum magnetic energy product, it is widely used in various applications that require high-intensity and persistent magnetic fields.

[0003] At present, when NdFeB magnets are produced, the mixed magnetic powder and binder are usually placed into a mold manually, and then a press is used to apply pressure to the magnetic powder and binder in the mold to form a magnet blank of the desired shape. The pressed magnet blank is then taken out manually and placed in a ziplock bag for sealed packaging. This production method has certain defects: 1. In the batch production process of NdFeB magnets, each magnet blank needs to be manually loaded and unloaded and packaged, which is time-consuming and labor-intensive, affecting production efficiency; 2. When the magnetic powder is pressed into shape, due to the process problems of powder metallurgy, some of the magnetic powder will not be completely bonded or embedded in the magnet blank, resulting in residual magnetic powder on the surface of the magnet blank, and due to the poor fluidity of the magnetic powder, some of the magnetic powder will be unevenly distributed and excess magnetic powder will accumulate on the surface of the magnet blank. Therefore, each magnet blank needs to be cleaned manually, which is cumbersome to operate and affects production efficiency. The cleaning effect achieved manually is poor. When the magnet blank is subsequently stuffed into a ziplock bag for packaging, the bag opening of the ziplock bag may contact the surface of the magnet blank and the magnetic powder may be scraped off to the seal of the ziplock bag, thereby affecting the sealing effect of the ziplock bag, and then causing the magnet blank to oxidize and rust easily, affecting product quality. Summary of the invention

[0004] In view of this, the present invention provides a forming and pressing equipment for the production of NdFeB magnets, which can overcome the shortcomings of manual packaging and cleaning of magnet blanks during the mass production of NdFeB magnets, which are time-consuming and labor-intensive, affecting production efficiency, and may leave magnetic powder in the sealing of the ziplock bag, affecting the sealing effect of the ziplock bag, thereby affecting product quality.

[0005] The technical solution is: a forming and pressing equipment for the production of NdFeB magnets, including a press body, a pushing assembly, a powder removal mechanism and a discharging mechanism, a mounting frame connected to the press body, a conveyor I installed on the mounting frame, a rotating rod I symmetrically placed on the mounting frame, a connecting column symmetrically connected to the press body, a connecting sleeve rotatably connected to the connecting column on the left rear side, and the connecting sleeve and the rotating rod I and the conveyor I are all transmitted through a pulley assembly, two rotating rods II are respectively installed on the connecting sleeve and the connecting column on the right rear side, the shaft sleeve is rotatably connected to the rotating rod II, a locking screw is threadedly connected to the side of the connecting column on the front side, and the locking screw can be tightened to lock the shaft sleeve, an electric push rod II is connected to the press body, and a hot melt sealer and a cutter are connected to the telescopic rod of the electric push rod II through a fixed frame. On the conveyor, two rolls of plastic film are respectively mounted on the rotating rod Ⅰ and the rotating rod Ⅱ on the right, and the ends of the plastic film are pulled out and fixed on the rotating rod Ⅰ and the rotating rod Ⅱ on the left, so that the two rolls of plastic film are unfolded above the conveyor Ⅰ. The press body is used to apply pressure to the magnetic powder and the binder to form a magnet blank of the required shape. Then the powder removal mechanism can remove the magnetic powder on the surface of the magnet blank, and then the magnet blank is pushed to the conveyor Ⅰ through the pushing component, so that the magnet blank is located between the two rolls of plastic film. Then the hot melt sealer and the cutter are driven down by the electric push rod Ⅱ. The hot melt sealer can perform hot melt sealing on the plastic film around the magnet blank to seal and package the magnet blank, and the cutter can cut the plastic film of the sealing part. Then the conveyor Ⅰ cooperates with the discharging mechanism to discharge the packaged magnet blank.

[0006] As a further preferred solution, the pushing assembly includes a linear drive I, a connecting plate and a rubber plate. The linear drive I is connected to the press body, the connecting plate is connected to the telescopic rod of the linear drive I, and the rubber plate is connected to the side of the connecting plate. The linear drive I can drive the rubber plate to move through the connecting plate so that the rubber plate can push the magnet blank onto the conveyor I.

[0007] As a further preferred scheme, the powder removal mechanism includes a mounting block, a linear drive II, a connecting cover, an air pump, a dust collecting bag, a bellows and a cleaning assembly. The mounting block is symmetrically connected to the press body, the linear drive II is connected to the mounting block, and the connecting cover is connected to the telescopic rod of the linear drive II, so that the linear drive II can drive the connecting cover to move to cover the outside of the magnet blank. The air pump and the dust collecting bag are respectively connected to the two mounting blocks, and the air pump and the dust collecting bag are respectively connected to the two connecting covers through the bellows. The air pump can blow air into the connecting cover through the bellows to blow the magnetic powder on the surface of the magnet blank. At the same time, the cleaning assembly can clean the surface of the magnet blank, so that the magnetic powder on the surface of the magnet blank can move through the bellows to the dust collecting bag for collection.

[0008] As a further preferred scheme, the cleaning assembly includes a mounting rod, a driving motor, a cross rod, a rotating sleeve, a cross sleeve rod, a brush disc, a brush rack and a connecting block. The mounting rod is connected to the top surface of the connecting cover on the right side, the driving motor is connected to the mounting rod, the cross rod is connected to the output shaft of the driving motor, the rotating sleeve is rotatably connected to the connecting cover on the right side, the cross sleeve rod is slidably connected in the rotating sleeve, and the cross sleeve rod is sleeved on the outside of the cross rod so that the driving motor can drive the cross sleeve rod to rotate through the cross rod, the brush disc is connected to the bottom end of the cross sleeve rod, the brush rack is symmetrically rotationally connected to the connecting cover on the right side, the connecting block is symmetrically connected to the outside of the brush disc, and the connecting block is slidably connected to the brush rack, so that the cross sleeve rod can drive the brush disc and the brush rack to rotate at the same time to clean the surface of the magnet blank.

[0009] As a further preferred embodiment, the cleaning assembly also includes a lifting rod and an adjusting screw. The lifting rod is rotatably connected to the cross sleeve rod, the adjusting screw is rotatably connected to the top surface of the connecting cover on the right side, and the adjusting screw is threadedly connected to the lifting rod, so that the rotation of the adjusting screw can drive the lifting rod and the cross sleeve rod to lift and lower, and the cross sleeve rod can drive the brush plate to lift and lower to adjust the height.

[0010] As a further preferred embodiment, the cleaning assembly also includes a rotating ring and a corrugated shield. The rotating ring is rotatably connected to the top surface of the connecting cover on the right side. The corrugated shield is connected to the rotating ring and the brush plate so that the lifting and lowering of the brush plate can pull the corrugated shield to extend and retract.

[0011] As a further preferred solution, the discharging mechanism includes a conveyor II, an electric push rod III, a sealing plate, a support plate, a roller, a belt and a material blocking assembly. The conveyor II and the electric push rod III are both installed in the press body, the sealing plate is connected to the telescopic rod of the electric push rod III, the support plate is symmetrically connected to the top surface of the sealing plate, the roller is symmetrically rotatably connected to the support plate, the belt is wrapped around the roller, and the material blocking assembly is used to block the packaged magnet blanks.

[0012] As a further preferred solution, the material blocking assembly includes a limiting frame and a material blocking plate, the limiting frame is symmetrically connected to the press body, and the material blocking plate is rotatably connected to the side of the press body.

[0013] The present invention has the following advantages: the present invention can unfold two rolls of plastic film above the conveyor I through the cooperation of the rotating rod I and the rotating rod II, and then the magnetic powder on the surface of the magnet blank can be automatically removed by the powder removal mechanism, and then the upper and lower rolls of plastic film are closed and hot-melt sealed to automatically seal and package the magnet blank, which saves time and labor, improves production efficiency, and can ensure the sealing of the magnet blank, thereby ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the specific structure of the press body of the present invention.

[0016] Figure 3 It is a schematic diagram of the installation of the installation frame, conveyor I, rotating rod I and connecting column of the present invention.

[0017] Figure 4 For the present invention Figure 3 Schematic diagram of the local specific structure.

[0018] Figure 5 It is a schematic diagram of the separation structure of the connecting sleeve, the rotating rod II and the shaft sleeve of the present invention.

[0019] Figure 6 It is a schematic diagram of the installation of the push assembly of the present invention.

[0020] Figure 7 It is a schematic diagram of the installation of the powder removal mechanism of the present invention.

[0021] Figure 8 It is a cross-sectional view of the connection cover of the present invention.

[0022] Fig. 9 It is a schematic diagram of the separation structure of the cross rod and the cross sleeve rod of the present invention.

[0023] Fig.10 It is a schematic diagram of the installation of the discharging mechanism of the present invention.

[0024] Fig.11 It is a schematic diagram of the specific structure of the sealing plate of the present invention.

[0025] Fig.12 It is a schematic diagram of the installation of the material blocking assembly of the present invention.

[0026] Among them: 1-press body, 101-casing, 102-sliding door panel, 103-automatic feeder, 104-hydraulic cylinder, 105-pressing block, 106-mounting plate, 107-feeding port, 108-connecting frame, 109-mold, 1010-electric push rod Ⅰ, 2-mounting frame, 3-conveyor Ⅰ, 4-rotating rod Ⅰ, 5-connecting column, 6-connecting sleeve, 7-rotating rod Ⅱ, 71-shaft sleeve, 8-locking screw, 9-electric push rod Ⅱ, 10-fixed frame, 11-hot melt sealer, 12-cutter, 13-linear drive Ⅰ, 14-connecting plate, 15- Rubber plate, 16-mounting block, 17-linear drive II, 18-connecting cover, 19-air pump, 20-dust bag, 21-bellows, 22-mounting rod, 23-drive motor, 2301-cross rod, 24-rotating sleeve, 25-cross sleeve rod, 26-brush plate, 27-brush holder, 28-connecting block, 29-lifting rod, 30-adjusting screw, 31-rotating ring, 32-corrugated baffle, 33-conveyor II, 34-electric push rod III, 35-sealing plate, 36-support plate, 37-roller, 38-belt, 39-limiting frame, 40-baffle plate. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Embodiment: A forming and pressing device for producing NdFeB magnets, such as Figure 1-Figure 12As shown, the press body 1 includes a housing 101, a sliding door panel 102, an automatic feeder 103, a hydraulic cylinder 104, a pressing block 105, a mounting plate 106, a connecting frame 108, a mold 109 and an electric push rod Ⅰ 1010. The upper front part of the housing 101 is connected to a U-shaped slide rail with an opening facing right. The sliding door panel 102 is slidably connected to the U-shaped slide rail and can slide left and right. The sliding door panel 102 is made of a transparent material to facilitate manual observation of the interior of the housing 101. A sealing strip is also connected to the right side of the sliding door panel 102. The rear side of the sealing strip contacts the front side of the housing 101 so that the sealing strip can block the sliding door panel 101. 2 and the housing 101, the automatic feeder 103 is installed on the right side of the housing 101, the hydraulic cylinder 104 is installed in the middle of the upper part of the housing 101, the pressing block 105 is connected to the telescopic rod of the hydraulic cylinder 104, the mounting plate 106 is connected to the middle of the housing 101, and a feeding port 107 is opened in the middle of the mounting plate 106, the feeding port 107 is located directly below the pressing block 105, and the diameter of the feeding port 107 is consistent with the diameter of the pressing block 105, the connecting frame 108 is connected to the inner bottom surface of the housing 101, the mold 109 is connected to the upper part of the connecting frame 108, and a through hole for magnetic powder molding is opened in the middle of the mold 109 (the through hole is cylindrical, and the neodymium targeted by this application The shape of the iron boron magnet is also cylindrical), the through hole of the mold 109 is vertically aligned with the feeding port 107 and is of the same size, the electric push rod Ⅰ1010 is connected to the inner bottom surface of the casing 101, and the telescopic rod of the electric push rod Ⅰ1010 slides through the upper part of the connecting frame 108, so that the top surface of the telescopic rod of the electric push rod Ⅰ1010 is horizontally aligned with the bottom end of the through hole of the mold 109, and the diameter of the telescopic rod of the electric push rod Ⅰ1010 is smaller than the diameter of the through hole of the mold 109; the automatic feeder 103 can put the mixed magnetic powder and binder into the through hole of the mold 109 through the feeding port 107, and the top surface of the telescopic rod of the electric push rod Ⅰ1010 and the top surface of the connecting frame 108 are aligned horizontally. The combination can block the bottom of the through hole to prevent the leakage of magnetic powder and binder, and then the hydraulic cylinder 104 drives the pressing block 105 to move downward, so that the pressing block 105 can pass through the feeding port 107 and enter the through hole of the mold 109. The pressing block 105 can apply pressure to the magnetic powder and the binder to form a magnet blank of the desired shape, and then the hydraulic cylinder 104 drives the pressing block 105 to move upward away from the feeding port 107, and then the telescopic rod of the electric push rod Ⅰ1010 is controlled to extend. Since the diameter of the telescopic rod of the electric push rod Ⅰ1010 is smaller than the diameter of the through hole of the mold 109, the telescopic rod of the electric push rod Ⅰ1010 can smoothly push the magnet blank in the through hole upward; It also includes an installation frame 2, a conveyor Ⅰ3, a rotating rod Ⅰ4, a connecting column 5, a connecting sleeve 6, a rotating rod Ⅱ7, a shaft sleeve 71, a locking screw 8, an electric push rod Ⅱ9, a fixing frame 10, a hot melt sealer 11, a cutter 12, a pushing assembly, a powder removal mechanism and a discharging mechanism. The installation frame 2 is connected to the rear part of the bottom surface of the installation plate 106, and a discharging port for discharging is opened on the left side of the bottom surface of the installation frame 2. The conveyor Ⅰ3 is installed on the upper part of the installation frame 2, and the top surface of the conveyor Ⅰ3 is slightly lower than the top surface of the installation plate 106. Semi-arc grooves are symmetrically opened on the left and right sides of the upper part of the installation frame 2. A rotating rod Ⅰ4 is placed between the two semi-arc grooves symmetrically. The number of the rotating rods Ⅰ4 is two. Four square grooves are symmetrically opened at the rear of the installation plate 106. The square grooves correspond to the semi-arc grooves one by one, and the square grooves The connecting posts 5 are symmetrically connected to the rear side of the top surface of the mounting plate 106. There are four connecting posts 5, and the four connecting posts 5 are distributed in a rectangular shape. The upper part of the connecting posts 5 on the left rear side is rotatably connected to a connecting sleeve 6, and a tooth hole is provided in the connecting sleeve 6. The pulley assembly consists of a pulley and a flat belt. There are three pulleys connected to the two conveying rollers of the conveyor Ⅰ3, and the front ends of the two rotating rods Ⅰ4 and the front parts of the connecting sleeves 6 are also connected to pulleys. There are six pulleys in total and they correspond to each other in two. A flat belt is wound around the two corresponding pulleys so that the connecting sleeves 6 The transmission can be carried out between the rotating rod Ⅰ4 and the conveyor Ⅰ3 through the pulley assembly. The two rotating rods Ⅱ7 are symmetrically arranged on the left and right. The rear end of the rotating rod Ⅱ7 on the left is in the shape of a gear meshing with the tooth hole of the connecting sleeve 6. The rear end of the rotating rod Ⅱ7 on the left can be inserted into the tooth hole of the connecting sleeve 6, so that the connecting sleeve 6 can drive the rotating rod Ⅱ7 on the left to rotate synchronously. The rear end of the rotating rod Ⅱ7 on the right is directly inserted into the upper part of the connecting column 5 on the right rear side. The shaft sleeve 71 is rotatably connected to the front part of the rotating rod Ⅱ7, and the shaft sleeve 71 can be inserted into the upper part of the connecting column 5 on the front side. The upper part of the connecting column 5 on the front side is threadedly connected with a locking screw 8, and tightening the locking screw 8 can lock the shaft sleeve 71 to limit the rotating rod Ⅱ7. The electric push rod Ⅱ9 is connected to the upper inner side of the casing 101, and the fixing frame 10 is connected to the telescopic rod of the electric push rod II9, the hot melt sealer 11 and the cutter 12 are both connected to the lower part of the fixed frame 10, and the cutter 12 is located outside the hot melt sealer 11, through two rolls of plastic film are respectively set on the right rotating rod I4 and the rotating rod II7, and the ends of the plastic film are pulled out and fixed on the left rotating rod I4 and the rotating rod II7, so that the two rolls of plastic film are unfolded above the conveyor I3, the press body 1 is used to apply pressure to the magnetic powder and the binder to form a magnet blank of the desired shape, and then the powder removal mechanism can remove the magnetic powder on the surface of the magnet blank, and then push the magnet blank to the conveyor I3 through the pushing component, so that the magnet blank can be located between the two rolls of plastic film, and then the hot melt sealer 11 and the cutter 12 are driven to descend by the electric push rod II9,The hot melt sealer 11 can perform hot melt sealing on the plastic film around the magnet blank to seal and package the magnet blank, and the cutter 12 can cut the plastic film of the sealing part, and then the conveyor Ⅰ3 cooperates with the discharging mechanism to discharge the packaged magnet blank, so that the magnet blank can be automatically cleaned and packaged, saving time and labor, and improving production efficiency. The packaging method of closing the upper and lower rolls of plastic film and hot melt sealing can ensure the sealing of the magnet blank, thereby ensuring product quality.

[0029] The pushing assembly includes a linear drive Ⅰ13, a connecting plate 14 and a rubber plate 15. The linear drive Ⅰ13 is connected to the upper front side of the mounting plate 106, the connecting plate 14 is connected to the telescopic rod of the linear drive Ⅰ13, and the rubber plate 15 is connected to the rear side of the connecting plate 14. The linear drive Ⅰ13 can drive the rubber plate 15 to move backward through the connecting plate 14, so that the rubber plate 15 can push the magnet blank backward to the conveyor Ⅰ3.

[0030] The powder removal mechanism includes a mounting block 16, a linear drive II 17, a connecting cover 18, an air pump 19, a dust collecting bag 20, a bellows 21 and a cleaning assembly. The two mounting blocks 16 are symmetrically connected to the top surface of the mounting plate 106, the linear drive II 17 is connected to the mounting block 16, and the connecting cover 18 is connected to the telescopic rod of the linear drive II 17. The connecting cover 18 is semi-cylindrical as a whole, so that the linear drive II 17 can drive the connecting cover 18 to move. When the connecting covers 18 on the left and right sides move to the side close to each other, they can be shaped A cylindrical body is wrapped around the outside of the NdFeB magnet. An air pump 19 and a dust bag 20 are respectively connected to the mounting blocks 16 on the left and right sides, and the air pump 19 and the dust bag 20 are respectively connected to the two connecting covers 18 through the bellows 21, so that the air pump 19 can blow air into the connecting cover 18 through the bellows 21 on the left to blow away the excess magnetic powder on the surface of the magnet blank. At the same time, the cleaning component can clean the surface of the magnet blank so that the magnetic powder on the surface of the magnet blank can move through the bellows 21 on the right to the dust bag 20 for collection.

[0031] The cleaning assembly includes a mounting rod 22, a drive motor 23, a cross rod 2301, a rotating sleeve 24, a cross sleeve rod 25, a brush plate 26, a brush holder 27 and a connecting block 28. The mounting rod 22 is connected to the top surface of the connecting cover 18 on the right side, the drive motor 23 is connected to the upper part of the mounting rod 22, the cross rod 2301 is connected to the output shaft of the drive motor 23, the rotating sleeve 24 is rotatably connected to the middle of the upper part of the connecting cover 18 on the right side, and the rotating sleeve 24 is symmetrically provided with strip-shaped protrusions front and back, and the outer wall of the cross sleeve rod 25 is symmetrically provided with vertical grooves front and back. The strip-shaped protrusion of the movable sleeve 24 is located in the vertical groove of the cross sleeve rod 25, so that the cross sleeve rod 25 can slide up and down along the rotating sleeve 24, and the cross sleeve rod 25 is sleeved on the outside of the cross rod 2301, so that the driving motor 23 can drive the cross sleeve rod 25 to rotate through the cross rod 2301, the brush plate 26 is connected to the bottom end of the cross sleeve rod 25, the brush holder 27 is symmetrically rotated front and back and connected to the connecting cover 18 on the right side, the connecting block 28 is symmetrically connected to the outside of the brush plate 26, and the connecting block 28 is slidably connected to the brush holder 27, so that the cross sleeve The rod 25 can drive the brush plate 26 and the brush holder 27 to rotate simultaneously to clean the surface of the magnet blank; the cleaning assembly also includes a lifting rod 29 and an adjusting screw 30, the lifting rod 29 is rotatably connected to the upper part of the cross sleeve rod 25, the adjusting screw 30 is rotatably connected to the right side of the top surface of the connecting cover 18 on the right side, and the adjusting screw 30 is threadedly connected to the lifting rod 29, so that the rotation of the adjusting screw 30 can drive the lifting rod 29 and the cross sleeve rod 25 to rise and fall, and the cross sleeve rod 25 can drive the brush plate 26 to rise and fall to adjust the height to adapt to different heights. The cleaning assembly also includes a rotating ring 31 and a corrugated shield 32. The rotating ring 31 is rotatably connected to the inner top surface of the connecting cover 18 on the right side. The top and bottom surfaces of the corrugated shield 32 are respectively connected to the rotating ring 31 and the brush plate 26, so that the lifting and lowering of the brush plate 26 can pull the corrugated shield 32 to extend and retract. The corrugated shield 32 can always block the space between the top surface of the brush plate 26 and the inner top surface of the connecting cover 18 on the right side, so that the wind blown out by the air pump 19 can all pass around the magnet blank to blow away the excess magnetic powder on the surface of the magnet blank.

[0032] The discharging mechanism includes a conveyor II 33, an electric push rod III 34, a sealing plate 35, a support plate 36, a roller 37, a belt 38 and a material blocking assembly. The conveyor II 33 and the electric push rod III 34 are both installed at the lower inner part of the housing 101. The sealing plate 35 is connected to the telescopic rod of the electric push rod III 34, and the sealing plate 35 is located at the discharging port of the mounting frame 2. The sealing plate 35 is made of rubber. The two support plates 36 are symmetrically connected to the top surface of the sealing plate 35 front and back. The roller 37 is symmetrically rotated left and right and connected to the support plate 36. The number of the rollers 37 is four. , belts 38 are wound around the two rollers 37 on the same support plate 36, a gap is left between the two belts 38, and the left end of the conveyor II 33 is located at the lower right of the above gap, and the material blocking assembly is used to block the packaged magnet blanks; the material blocking assembly includes a limit frame 39 and a material blocking plate 40, the two limit frames 39 are symmetrically connected to the inner bottom surface of the casing 101 front and back, and the two limit frames 39 are respectively located at the front and rear sides of the conveyor II 33, the material blocking plate 40 is rotatably connected to the lower right part of the casing 101, and the material blocking plate 40 blocks the right side of the conveyor II 33.

[0033] Initially, a roll of plastic film (also called plastic packaging film) is mounted on the right rotating rod Ⅰ4 and the rotating rod Ⅱ7, and the ends of the two rolls of plastic film are pulled out and fixed to the surface of the paper tube on the left rotating rod Ⅰ4 and the rotating rod Ⅱ7, respectively, so that the two rolls of plastic film can be unfolded above the conveyor Ⅰ3; first, the mixed magnetic powder and binder are put into the automatic feeder 103, and then the automatic feeder 103 can put a proper amount of magnetic powder and binder into the through hole of the mold 109, and then the hydraulic cylinder 104 drives the pressing block 105 to move downward, and the pressing block 105 can apply pressure to the magnetic powder and binder to form a magnet blank of the desired shape, and then the hydraulic cylinder 10 The pressing block 105 is driven to move upward away from the feeding port 107, and then the telescopic rod of the electric push rod Ⅰ1010 is controlled to extend, and the telescopic rod of the electric push rod Ⅰ1010 can smoothly push the magnet blank in the through hole upward; then the connecting covers 18 on the left and right sides can be driven to the side close to each other by the linear drive Ⅱ17, and the bellows 21 is extended appropriately until the two connecting covers 18 are closed and wrapped around the outside of the magnet blank, at which time the brush plate 26 will contact the top surface of the magnet blank, and the brush holder 27 will contact the outside of the magnet blank, and then the cross rod 2301 is driven to rotate by the driving motor 23, and the cross rod 2301 can drive the cross sleeve rod 25 to rotate, and the cross sleeve rod 25 drives The rotating sleeve 24 and the brush plate 26 rotate, and the brush plate 26 can drive the brush holder 27 to rotate through the connecting block 28. The brush plate 26 can brush the top surface of the magnet blank, and the brush holder 27 can brush the outer side and the lower edge of the bottom surface of the magnet blank, so that the excess magnetic powder on the surface of the magnet blank can be brushed off. At the same time, the air pump 19 and the bellows 21 on the left can be used to blow air into the two connecting covers 18, and the corrugated shield 32 can block the space between the top surface of the brush plate 26 and the top surface of the connecting cover 18 on the right, so that the wind blown by the air pump 19 can all pass around the magnet blank, so that the excess magnetic powder on the surface of the magnet blank can be blown off. The dust enters the dust collecting bag 20 through the bellows 21 on the right side for collection, and then the air pump 19 is controlled to stop working; the connecting covers 18 on the left and right sides are driven to move to the side away from each other through the linear drive II 17 to reset, and then the connecting plate 14 and the rubber plate 15 are driven to move backward through the linear drive I 13. When the rubber plate 15 contacts the magnet blank, the magnet blank can be pushed backward to between the two unfolded rolls of plastic film, and at this time the magnet blank is located on the top surface of the conveyor I 3, and the conveyor I 3 can support the magnet blank, and then the connecting plate 14 and the rubber plate 15 are driven to move forward and reset through the linear drive I 13, so that the rubber plate 15 is separated from the magnet blank;Then the fixed frame 10 is driven downward by the electric push rod Ⅱ9, and the fixed frame 10 can drive the hot melt sealer 11 and the cutter 12 to move downward. When the cutter 12 contacts the plastic film above the magnet blank, it can squeeze the plastic film above the magnet blank to bend downward, thereby pulling the rotating rod Ⅱ7 on the right to rotate slightly, so that the plastic film above the magnet blank can be released for a distance so that it can be wrapped around the outside of the magnet blank until the upper and lower rolls of plastic film contact each other. At this time, the upper and lower rolls of plastic film can be hot-melt sealed by the hot melt sealer 11, so that the magnet blank can be automatically sealed and packaged. At the same time, the cutter 12 cooperates with the conveyor Ⅰ3 to cut off the periphery of the sealing part of the plastic film, so that the packaged magnet blank can be separated from the two rolls of plastic film. Then the fixed frame 10 is driven upward and reset by the electric push rod Ⅱ9, and the fixed frame 10 can drive the hot melt sealer 11 and the cutter 12 to move downward. The knife 12 moves upward to reset; the packaged magnet blank can be conveyed to the left between the top surfaces of the two belts 38 through the conveyor Ⅰ3, and the belt 38 can rotate with it to assist the packaged magnet blank to move to the left, and the roller 37 can support the packaged magnet blank. At the same time, the conveyor Ⅰ3 can drive the two rotating rods Ⅰ4 and the connecting sleeve 6 to rotate through the pulley assembly, and the connecting sleeve 6 can drive the rotating rod Ⅱ7 on the left to rotate. At this time, the rotating rod Ⅰ4 on the right can release the plastic film under the magnet blank, and the rotating rod Ⅰ4 on the left can rewind the plastic film under the magnet blank. Similarly, the rotating rod Ⅱ7 on the left can rewind the plastic film above the magnet blank, and the plastic film above the magnet blank can pull the rotating rod Ⅰ4 on the right to rotate, so that the part with the gap on the plastic film can be automatically rolled up, so that the next section of intact part can be moved to the top of the conveyor Ⅰ3;Then, the electric push rod III 34 drives the sealing plate 35 to move downward, and the sealing plate 35 can drive the supporting plate 36, the roller 37 and the belt 38 to move downward, thereby driving the packaged magnet blank to move downward. When the right side of the bottom surface of the sealing plate 35 contacts the left end of the conveyor II 33, the left end of the conveyor II 33 can squeeze the right end of the sealing plate 35 to tilt upward and deform, until the belt 38 drops to the same height as the left end of the conveyor II 33. At this time, the bottom surface of the packaged magnet blank will contact the left end of the conveyor II 33, and the packaged magnet blank can be transported to the right through the conveyor II 33. The packaged magnet blank is separated from the belt 38, and the limit frame 39 can block the front and rear sides of the packaged magnet blank on the conveyor II 33 to play a limiting role until the packaged magnet blank moves to the right end of the conveyor II 33, and the blocking plate 40 can block the right side of the packaged magnet blank, and then the electric push rod III 34 drives the sealing plate 35 to move upward and reset, and the sealing plate 35 can drive the support plate 36, the roller 37 and the belt 38 to move upward and reset. After the sealing plate 35 is separated from the left end of the conveyor II 33, it can recover due to its own elasticity, so that the sealing plate 35 can return to the outlet of the installation frame 2 At the material inlet, repeat the above operation to press and seal the magnetic powder again. When the conveyor II 33 is full of packaged magnet blanks, the baffle plate 40 can be manually turned to the right to open it, and then the packaged magnet blanks are conveyed to the right by the conveyor II 33. The packaged magnet blanks can be taken out manually in sequence. At this time, the sealing plate 35 is sealed with the material outlet of the mounting frame 2 to prevent outside air from entering the upper inner part of the casing 101, ensuring the processing environment of the magnet blanks, and then the baffle plate 40 can be manually reversed and closed; when it is necessary to press NdFeB magnets of different heights When iron is used, the sliding door panel 102 can be pulled to the right to open, and then different molds 109 can be replaced, and then the adjusting screw 30 can be rotated forward and backward. The adjusting screw 30 can drive the lifting rod 29 to lift and lower, and the lifting rod 29 can drive the cross sleeve rod 25, the brush plate 26 and the connecting block 28 to lift and lower synchronously, so that the brush plate 26 can adapt to magnet blanks of different heights, and the lifting of the brush plate 26 can pull the corrugated shield 32 to extend and retract, so that the corrugated shield 32 can always block the space between the top surface of the brush plate 26 and the inner top surface of the connecting cover 18 on the right side, so as to adapt to the use of magnet blanks of different heights;After the two rolls of plastic film are used up, the locking screw 8 can be loosened manually to release the lock on the shaft sleeve 71. At this time, the rotating rods Ⅱ7 on the left and right sides can be pulled forward and pulled out to make the rear end of the rotating rod Ⅱ7 on the left disengage from the connecting sleeve 6, and the rear end of the rotating rod Ⅱ7 on the right disengage from the upper part of the connecting column 5 on the right rear side. Then the plastic film paper tube and the used plastic film remaining on the rotating rod Ⅱ7 can be taken out, and a new roll of plastic film can be placed between the two connecting columns 5 on the right, and then a new paper tube can be placed between the two connecting columns 5 on the left, and then the rotating rods Ⅱ7 on the left and right sides can be pushed backward to reset, so that the rear end of the rotating rod Ⅱ7 on the left is reinserted into the connecting sleeve 6, and the rotating rod Ⅱ7 on the left passes through the new paper tube, and the rotating rod Ⅱ7 on the right is The rear end is re-inserted into the upper part of the right rear connecting column 5, and the right rotating rod Ⅱ7 passes through a new roll of plastic film, and then the locking screw 8 can be tightened to lock the shaft sleeve 71 to prevent the rotating rod Ⅱ7 from moving forward and backward; then the rotating rods Ⅰ4 on both sides are pulled up and taken out, and then the plastic film paper tube and the used plastic film remaining on the rotating rod Ⅰ4 are taken out, and then a new roll of plastic film is put on the right rotating rod Ⅰ4, and a new paper tube is put on the left rotating rod Ⅰ4, and then the two rotating rods Ⅰ4 are put back in place, and finally the ends of the two rolls of plastic film can be pulled out and fixed to the surfaces of the paper tubes on the left rotating rod Ⅰ4 and the rotating rod Ⅱ7, so that the two new rolls of plastic film can be unfolded above the conveyor Ⅰ3. ;

[0034] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A forming and pressing device for producing NdFeB magnets, comprising a press body (1), characterized in that: The press machine also includes a pushing assembly, a powder removal mechanism and a discharging mechanism. The mounting frame (2) is connected to the press machine body (1). The conveyor I (3) is mounted on the mounting frame (2). The rotating rod I (4) is symmetrically placed on the mounting frame (2). The connecting column (5) is symmetrically connected to the press machine body (1). The connecting sleeve (6) is rotatably connected to the connecting column (5) on the left rear side. The connecting sleeve (6) and the rotating rod I (4) are all connected to the conveyor I (3) through a pulley assembly. The two rotating rods II (7) are respectively installed on the connecting sleeve (6) and the connecting column (5) on the right rear side, the shaft sleeve (71) is rotatably connected to the rotating rod II (7), the locking screw (8) is threadedly connected to the side of the connecting column (5) on the front side, and the locking screw (8) can be tightened to lock the shaft sleeve (71), the electric push rod II (9) is connected to the press body (1), and the hot melt sealer (11) and the cutter (12) are connected to the electric push rod II through the fixing frame (10). The two rolls of plastic film are respectively mounted on the right rotating rod Ⅰ (4) and the rotating rod Ⅱ (7), and the ends of the plastic film are pulled out and fixed on the left rotating rod Ⅰ (4) and the rotating rod Ⅱ (7), so that the two rolls of plastic film are unfolded above the conveyor Ⅰ (3). The press body (1) is used to apply pressure to the magnetic powder and the binder to form a magnet blank of a desired shape. Then, the powder removal mechanism can remove the magnetic powder on the surface of the magnet blank, and then the magnet blank is pushed by the push assembly. The magnet blank is pushed onto the conveyor I (3) so that the magnet blank is located between two rolls of plastic film. Then, the electric push rod II (9) drives the hot melt sealer (11) and the cutter (12) to descend. The hot melt sealer (11) can perform hot melt sealing on the plastic film around the magnet blank to seal and package the magnet blank, and the cutter (12) can cut the plastic film at the sealing part. Then, the conveyor I (3) cooperates with the discharging mechanism to discharge the packaged magnet blank.

2. A forming and pressing device for producing NdFeB magnets as claimed in claim 1, characterized in that: The pushing assembly comprises a linear drive I (13), a connecting plate (14) and a rubber plate (15), wherein the linear drive I (13) is connected to the inside of the press body (1), the connecting plate (14) is connected to the telescopic rod of the linear drive I (13), and the rubber plate (15) is connected to the side of the connecting plate (14). The linear drive I (13) can drive the rubber plate (15) to move through the connecting plate (14), so that the rubber plate (15) can push the magnet blank onto the conveyor I (3).

3. A forming and pressing device for producing NdFeB magnets as claimed in claim 1, characterized in that: The powder removal mechanism comprises a mounting block (16), a linear drive II (17), a connecting cover (18), an air pump (19), a dust collecting bag (20), a bellows (21) and a cleaning assembly. The mounting block (16) is symmetrically connected to the press body (1). The linear drive II (17) is connected to the mounting block (16). The connecting cover (18) is connected to the telescopic rod of the linear drive II (17) so that the linear drive II (17) can drive the connecting cover (18) to move to cover the outside of the magnet blank. The air pump (19) The air pump (19) and the dust collecting bag (20) are respectively connected to the two mounting blocks (16), and the air pump (19) and the dust collecting bag (20) are respectively connected to the two connecting covers (18) through the bellows (21). The air pump (19) can blow air into the connecting cover (18) through the bellows (21) to blow the magnetic powder on the surface of the magnet blank. At the same time, the cleaning component can clean the surface of the magnet blank so that the magnetic powder on the surface of the magnet blank can move through the bellows (21) to the dust collecting bag (20) for collection.

4. A forming and pressing device for producing NdFeB magnets as claimed in claim 3, characterized in that: The cleaning assembly comprises a mounting rod (22), a driving motor (23), a cross rod (2301), a rotating sleeve (24), a cross sleeve rod (25), a brush plate (26), a brush holder (27) and a connecting block (28), wherein the mounting rod (22) is connected to the top surface of the connecting cover (18) on the right side, the driving motor (23) is connected to the mounting rod (22), the cross rod (2301) is connected to the output shaft of the driving motor (23), the rotating sleeve (24) is rotatably connected to the connecting cover (18) on the right side, the cross sleeve rod (25) is slidably connected to the rotating sleeve (24), and the cross sleeve rod (25) is connected to the rotating sleeve (24) in a slidable manner. The cross rod (25) is sleeved on the outside of the cross rod (2301) so that the driving motor (23) can drive the cross rod (25) to rotate through the cross rod (2301). The brush plate (26) is connected to the bottom end of the cross rod (25). The brush holder (27) is symmetrically rotatably connected to the right side of the connecting cover (18). The connecting block (28) is symmetrically connected to the outside of the brush plate (26). The connecting block (28) is slidably connected to the brush holder (27), so that the cross rod (25) can drive the brush plate (26) and the brush holder (27) to rotate simultaneously, so as to clean the surface of the magnet blank.

5. A forming and pressing device for producing NdFeB magnets as claimed in claim 4, characterized in that: The cleaning assembly further comprises a lifting rod (29) and an adjusting screw (30), wherein the lifting rod (29) is rotatably connected to the cross sleeve rod (25), and the adjusting screw (30) is rotatably connected to the top surface of the right connecting cover (18), and the adjusting screw (30) is threadedly connected to the lifting rod (29), so that the rotation of the adjusting screw (30) can drive the lifting rod (29) and the cross sleeve rod (25) to be lifted and lowered, and the cross sleeve rod (25) can drive the brush plate (26) to be lifted and lowered to adjust the height.

6. A forming and pressing device for producing NdFeB magnets as claimed in claim 4, characterized in that: The cleaning assembly further comprises a rotating ring (31) and a corrugated shield (32). The rotating ring (31) is rotatably connected to the inner top surface of the right connecting cover (18). The corrugated shield (32) is connected to the rotating ring (31) and the brush plate (26), so that the lifting and lowering of the brush plate (26) can pull the corrugated shield (32) to extend and retract.

7. A forming and pressing device for producing NdFeB magnets as claimed in claim 1, characterized in that: The discharging mechanism comprises a conveyor II (33), an electric push rod III (34), a sealing plate (35), a support plate (36), a roller (37), a belt (38) and a material blocking assembly. The conveyor II (33) and the electric push rod III (34) are both installed in a press body (1). The sealing plate (35) is connected to the telescopic rod of the electric push rod III (34). The support plate (36) is symmetrically connected to the top surface of the sealing plate (35). The roller (37) is symmetrically connected to the support plate (36) in a rotationally connected manner. The belt (38) is wound around the roller (37). The material blocking assembly is used to block the packaged magnet blanks.

8. A forming and pressing device for producing NdFeB magnets as claimed in claim 7, characterized in that: The material blocking assembly comprises a limiting frame (39) and a material blocking plate (40), wherein the limiting frame (39) is symmetrically connected inside the press body (1), and the material blocking plate (40) is rotatably connected to the side of the press body (1).

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