A printing equipment and method for producing neodymium iron boron magnets

Abstract

This invention relates to the field of magnet processing technology and discloses a printing equipment and method for producing neodymium iron boron magnets. The device includes a base, a magnet body, and a vertical plate fixedly installed on one side of the top of the base. Side electric push rods are symmetrically fixedly installed on the lower part of one side of the front of the vertical plate. The device also includes: a base plate fixedly connected to the bottom of the telescopic end of the side electric push rod; a clamping frame rotatably installed on the top of the base plate; a flipping assembly on the top of the base plate; a positioning assembly on the inner side of the clamping frame; and two side plates symmetrically fixedly installed on the top of the base plate. A drive motor is fixedly installed on the outer side of one side plate, and a rotating shaft is rotatably connected to the outer side of the side plate. A main gear is fixedly connected to the end of the rotating shaft. This invention solves the problem that when flipping multiple magnets, some printing ink peels off due to insufficient adhesion, thus affecting the printing effect on the flipped magnets.

Description

Technical Field

[0001] This invention relates to the field of magnet processing technology, specifically to a printing equipment and method for producing neodymium iron boron magnets. Background Technology

[0002] Printing is a crucial step in the processing of neodymium iron boron permanent magnet materials. Specific patterns are coated onto the surface of the neodymium iron boron permanent magnet materials, and currently, screen printing is the main method used to print these patterns.

[0003] For example, a double-sided screen printing fixture using permanent magnet steel, as disclosed in announcement number CN221437453U, includes a rubber magnetic base plate. Above the rubber magnetic base plate is a limiting frame formed by an upper limit baffle, a lower limit baffle, a left limit baffle, and a right limit baffle. Within the limiting frame are several intermediate limiting baffles that engage with the upper and lower limit baffles. Each upper limit baffle contains an upper limit rubber magnetic strip, each lower limit baffle contains a lower limit rubber magnetic strip, each left limit baffle contains a left limit rubber magnetic strip, each right limit baffle contains a right limit rubber magnetic strip, and each intermediate limiting baffle contains an intermediate limit rubber magnetic strip. All the upper, lower, left, right, and intermediate limiting baffles are detachable, improving upon the difficulty of flipping traditional fixtures and enhancing the printing efficiency of double-sided printed products.

[0004] However, during the printing process, it is sometimes necessary to print neodymium iron boron permanent magnets on both sides. Existing printing machines print on multiple magnets simultaneously, so multiple magnets need to be flipped over at the same time. When flipping the magnets, since the ink on the printing surface has not been dried, some of the printing ink may peel off due to insufficient adhesion as the magnets are flipped over, thus affecting the effect of printing on the flipped magnets and reducing the printing quality of the screen printing machine.

[0005] Therefore, a printing equipment and method for producing neodymium iron boron magnets is proposed to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a printing equipment and method for the production of neodymium iron boron magnets, in order to solve the problem that when multiple magnets are flipped, some of the printing ink peels off due to insufficient adhesion, thus affecting the printing effect on the flipped magnets.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a printing equipment and method for producing neodymium iron boron magnets, comprising a base, a magnet body, and a vertical plate fixedly installed on one side of the top of the base, wherein side electric push rods are symmetrically fixedly installed on the lower part of one side of the front of the vertical plate;

[0008] Also includes:

[0009] The telescopic end of the side electric push rod is fixedly connected to the same base plate. A clamp frame is rotatably mounted on the top of the base plate. A flipping component is provided on the top of the base plate. A positioning component is provided on the inner side of the clamp frame.

[0010] The flipping assembly includes two side plates symmetrically fixedly installed on the top of the base plate. A drive motor is fixedly installed on the outer side of one of the side plates. A rotating shaft is rotatably connected to the outer side of the side plate. A main gear is fixedly connected to the end of the rotating shaft. The output end of the drive motor is fixedly installed with the main gear on one side. The two sides of the clamp frame are respectively fixedly connected to the two rotating shafts.

[0011] An inner U-shaped rod is fixedly connected between the two side plates. A driven gear is rotatably connected to the outer side of the inner U-shaped rod. An eccentric rod is fixedly connected to the outer side of the driven gear. A movable frame is sleeved on the outer side of the eccentric rod. An outer U-shaped rod is fixedly connected between the two movable frames. The outer U-shaped rod is slidably connected to the inner U-shaped rod. A lower plate is fixedly installed at the bottom of the outer U-shaped rod. A connecting pipe is fixedly installed on one side of the lower plate. A spray pipe is fixedly installed on the other side of the lower plate. The lower plate is connected to the spray pipe through the connecting pipe.

[0012] Preferably, the drive motor is fixedly installed to one side plate via a fixing rod, the clamp frame is located between the two side plates, the main gear and the driven gear are meshed, the diameter ratio of the main gear and the driven gear is 2:1, and a limit plate is fixedly connected to the end of the eccentric rod.

[0013] By adopting the above technical solution, when the drive motor is started, the main gear and the clamping frame rotate half a turn. After the gear rotates a full turn, the moving frame and the outer U-shaped rod move back and forth in one cycle, keeping the nozzle close to the printing surface of the magnet to blow hot air. This achieves a better heating and drying effect and reduces the possibility of ink peeling off the printing surface that may be caused by flipping.

[0014] Preferably, the limiting piece fits into the moving frame, connecting plates are symmetrically fixedly connected to both sides of the inner U-shaped rod, a spring is fixedly connected between the connecting plate and the outer U-shaped rod, and a sliding groove is provided at the bottom of the inner U-shaped rod.

[0015] By adopting the above technical solution, the outer U-shaped rod cooperates with the connecting plate to compress the spring one. When the outer U-shaped rod moves and resets, the elastic force of the spring one assists the movement of the outer U-shaped rod.

[0016] Preferably, the outer U-shaped rod is slidably connected to the chute, only one connecting pipe is provided, and there are no fewer than three spray pipes. A limiting rod is fixedly connected laterally inside the chute, and the outer U-shaped rod is slidably connected to the limiting rod.

[0017] By adopting the above technical solution, the limiting rod slides and limits the outer U-shaped rod, keeping the horizontal height of the outer U-shaped rod unchanged.

[0018] Preferably, the positioning component includes lead screws disposed on the front and rear sides of the clamp frame. The lead screws are rotatably connected to the clamp frame. There are no fewer than two lead screws on each side. The ends of the lead screws on the same side are rotatably connected to the same first pressure strip. The two first pressure strips are located inside the clamp frame. Sliding rods are slidably installed on the left and right sides of the inner wall of the clamp frame. A second pressure strip is fixedly connected to one end of the sliding rod. Two inclined blocks are symmetrically fixedly connected to the side of the second pressure strip near the sliding rod.

[0019] By adopting the above technical solution, rotating the two lead screws on the same side causes the first pressure bar on that side to move. The movement of the first pressure bar causes the L-shaped plate to move. The L-shaped plate presses the inclined surfaces of the inclined blocks on both sides, and the pressure on the inclined blocks causes the second pressure bar to move.

[0020] Preferably, a second spring is sleeved on the outer side of the sliding rod, and the two ends of the second spring are fixedly connected to the second pressure bar and the clamp frame, respectively. An L-shaped plate is fixedly connected to both ends of the first pressure bar, and the L-shaped plate abuts against the inclined surface of the inclined block. An electric vacuum suction cup is fixedly installed in the middle of the first pressure bar. Through holes are also provided on the front and rear sides of the clamp frame, and the electric vacuum suction cup is slidably connected to the through holes.

[0021] By adopting the above technical solution, the second pressure bar drives the sliding rod to move and stretches the second spring, so that the two second pressure bars clamp the left and right sides of the magnetic block body. At the same time, the electric vacuum chuck adsorbs and fixes the magnetic block body under negative pressure, which further improves the stability of clamping.

[0022] Preferably, a linear guide rail is fixedly installed on the upper part of one side of the vertical plate, and a movable seat is fixedly connected to the output end of the linear guide rail. Two upper electric push rods are fixedly installed on the top side of one side of the movable seat, and a scraper is fixedly connected to the telescopic end of the upper electric push rod through the movable seat.

[0023] By adopting the above technical solution, the linear guide rail drives the moving seat to move, and the moving seat drives the upper electric push rod and the scraper to move laterally, so that the scraper prints ink on the top surface of the magnetic block body.

[0024] Preferably, the telescopic end of the upper electric push rod is slidably connected to the movable seat, a screen printing plate is fixedly installed in the middle of one side of the front of the vertical plate, a storage bin is fixedly installed on one side of the top of the screen printing plate, and a discharge pipe is fixedly installed on the outside of the storage bin.

[0025] By adopting the above technical solution, it is easy to adjust the horizontal position of the moving seat, so that the moving seat drives the upper electric push rod to move, and the upper electric push rod drives the scraper to move, thereby realizing the scraping and printing by the scraper.

[0026] A method for using printing equipment for the production of neodymium iron boron magnets, comprising the following steps:

[0027] Step 1: When fixing the magnetic block body, place the three magnetic block bodies in the middle of the fixture frame, rotate the lead screw, the lead screw drives the first pressure bar to move, the L-shaped plate presses the inclined surfaces of the two inclined blocks, the inclined blocks being pressed will drive the second pressure bar to move, which makes it easy to fix the outer perimeter of the magnetic block body.

[0028] Step 2: During the printing process, the operator starts the side electric push rod to keep the top surface of the magnetic block body in contact with the bottom surface of the screen printing plate. The upper electric push rod drives the squeegee to descend, and then the linear guide rail drives the moving seat to move, so that the squeegee prints ink on the top surface of the magnetic block body.

[0029] Step 3: After printing, perform a flipping operation. The operator starts the drive motor, which causes the main gear to drive the driven gear to rotate. As the fixture frame flips, the outer U-shaped rod drives the lower plate and the nozzle to move. The outer U-shaped rod, in conjunction with the connecting plate, compresses the spring. The nozzle approaches the printing surface of the magnetic block and blows out hot air.

[0030] Step 4: When the gear and eccentric rod rotate one full turn, the fixture frame rotates 180 degrees. At this time, the outer U-shaped rod and the nozzle will move back to their original positions and move away from the magnetic block body. The elastic force of spring one assists the movement of the outer U-shaped rod. When the fixture frame rotates again, the nozzle will move closer to the auxiliary air blower to keep the nozzle close to the printed surface of the magnet.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting up a flipping component and starting the drive motor, when the main gear and clamp frame flip half a turn, the moving frame and outer U-shaped rod reciprocate for one cycle as the gear completes a full turn. The nozzle approaches the printing surface of the magnetic block body and blows out hot air, keeping the nozzle always close to the printing surface of the magnet, thereby achieving a better heating and drying effect. This reduces the possibility of ink peeling off the printing surface that may be caused by flipping. Combining printing flipping with auxiliary drying improves printing quality. Compared with directly using a high-power hot air blower for drying, it saves production costs. Moreover, the method of always being close to the preheating auxiliary drying not only prevents ink dripping to a certain extent but also does not affect the subsequent overall complete drying. The specific details are as follows:

[0032] 1. By setting up a flipping component, during printing, the connecting pipe is connected to the air outlet duct of the external hot air blower. The operator starts the side electric push rod, which retracts to raise the base plate. The base plate then raises the clamping frame, keeping the top surfaces of the multiple magnetic blocks inside the clamping frame in contact with the bottom surface of the screen printing plate. The upper electric push rod lowers the squeegee, and then the linear guide rail moves the moving seat. The moving seat moves the upper electric push rod and the squeegee laterally, allowing the squeegee to print ink on the top surface of the magnetic blocks. Then, the side electric push rod extends, lowering the base plate to its original position. By starting the drive motor, the drive motor rotates one side of the shaft. This shaft, through the clamping frame, rotates the other side of the shaft. The shaft rotates the main gear, which in turn rotates the driven gear. The diameter ratio of the main gear to the driven gear is 2:1. This ensures that when the main gear and the clamping frame rotate half a turn, the driven gear... When the wheel completes one full rotation, the gear rotation drives the eccentric rod to rotate, and the outer U-shaped rod slides inside the groove. When the eccentric rod rotates one full rotation, the moving frame and the outer U-shaped rod reciprocate for one cycle. As the fixture frame flips, the outer U-shaped rod drives the lower plate and the nozzle to move. The outer U-shaped rod, in conjunction with the connecting plate, compresses the first spring. The nozzle approaches the printing surface of the magnetic block and blows out hot air. When the gear and eccentric rod rotate half a full rotation, the fixture frame is in a vertical position. When the gear and eccentric rod rotate one full rotation, the fixture frame flips 180 degrees. At this time, the outer U-shaped rod and the nozzle will move back to their original position and move away from the magnetic block. The elasticity of the first spring assists the movement of the outer U-shaped rod. When the fixture frame flips again, the nozzle will approach again to assist in blowing air, which helps to keep the nozzle close to the printing surface of the magnet, thereby achieving a better heating and drying effect and reducing the possibility of ink peeling off the printing surface due to flipping.

[0033] 2. By setting up a positioning component, when installing the magnetic block body, the operator places the three magnetic block bodies in the middle of the fixture frame, keeping the top surface of the magnetic block body higher than the top surface of the fixture frame and the bottom surface of the magnetic block body lower than the bottom surface of the fixture frame. Rotating the two lead screws on the same side causes the first pressure bar on that side to move. The movement of the first pressure bar causes the L-shaped plate to move, and the L-shaped plate presses against the inclined surfaces of the two inclined blocks on both sides. The pressure on the inclined blocks causes the second pressure bar to move, which in turn causes the sliding rod to move and stretches the second spring, so that the two second pressure bars clamp the left and right sides of the magnetic block body until the first pressure bar on one side clamps the front side of the magnetic block body. Finally, rotating the two lead screws on the other side causes the first pressure bar on the other side to clamp the rear side of the magnetic block body, thus achieving a stable positioning of the magnetic block body. The electric vacuum chuck simultaneously applies negative pressure to the magnetic block body for adsorption and fixation, further improving the stability of the clamping. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the base plate rising according to the present invention;

[0035] Figure 2This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0036] Figure 3 This is a schematic diagram of the movable seat structure of the present invention;

[0037] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0038] Figure 5 This is a schematic diagram of the electric actuator structure of the present invention;

[0039] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0040] Figure 7 This is a schematic diagram of the clamp frame structure of the present invention;

[0041] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C;

[0042] Figure 9 This is a schematic diagram of the side plate structure of the present invention;

[0043] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point D;

[0044] Figure 11 This is a schematic diagram of the clamp frame flipping according to the present invention;

[0045] Figure 12 This is a schematic diagram of the magnet positioning of the present invention;

[0046] Figure 13 This is a schematic cross-sectional view of the clamp frame structure of the present invention;

[0047] Figure 14 For the present invention Figure 13 Enlarged structural diagram at point E in the middle.

[0048] In the diagram: 1. Base; 2. Vertical plate; 3. Side electric push rod; 4. Base plate; 5. Clamp frame; 6. Tilting assembly; 61. Side plate; 62. Drive motor; 63. Rotating shaft; 64. Main gear; 65. Inner U-shaped rod; 66. Driven gear; 67. Eccentric rod; 68. Moving frame; 69. Outer U-shaped rod; 610. Connecting plate; 611. Spring 1; 612. Slide groove; 613. Lower plate; 614. 615. Connecting pipe; 616. Nozzle; 617. Limiting rod; 71. Positioning assembly; 72. Lead screw; 73. First pressure bar; 74. L-shaped plate; 75. Sliding rod; 76. Second pressure bar; 77. Spring 2; 78. Inclined block; 89. Electric vacuum suction cup; 90. Linear guide rail; 10. Moving seat; 11. Upper electric push rod; 12. Scraper; 13. Storage bucket; 14. Screen printing plate; 15. Magnetic block body. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Please see Figure 1 - Figure 3 The present invention provides a technical solution: a printing equipment for the production of neodymium iron boron magnets, including a base 1, a magnetic block body 14 and a vertical plate 2 fixedly installed on one side of the top of the base 1, and a side electric push rod 3 symmetrically fixedly installed on the lower part of the front side of the vertical plate 2.

[0051] The bottom of the telescopic end of the side electric push rod 3 is fixedly connected to the same base plate 4. The top of the base plate 4 is rotatably mounted with a clamp frame 5, and the top of the base plate 4 is provided with a flipping component 6.

[0052] The flipping assembly 6 includes two side plates 61 symmetrically fixedly installed on the top of the base plate 4. A drive motor 62 is fixedly installed on the outer side of one side plate 61. A rotating shaft 63 is rotatably connected to the outer side of the side plate 61. A main gear 64 is fixedly connected to the end of the rotating shaft 63. The output end of the drive motor 62 is fixedly installed with the main gear 64 on one side. The two sides of the clamp frame 5 are fixedly connected to the two rotating shafts 63 respectively.

[0053] An inner U-shaped rod 65 is fixedly connected between two side plates 61. A driven gear 66 is rotatably connected to the outer side of the inner U-shaped rod 65. An eccentric rod 67 is fixedly connected to the outer side of the driven gear 66. A movable frame 68 is sleeved on the outer side of the eccentric rod 67. An outer U-shaped rod 69 is fixedly connected between the two movable frames 68. The outer U-shaped rod 69 is slidably connected to the inner U-shaped rod 65. A lower plate 613 is fixedly installed at the bottom of the outer U-shaped rod 69. A connecting pipe 614 is fixedly installed on one side of the lower plate 613. A nozzle 615 is fixedly installed on the other side of the lower plate 613. The lower plate 613 is connected to the nozzle 615 through the connecting pipe 614.

[0054] The drive motor 62 is fixedly installed on one side plate 61 via a fixing rod. The clamp frame 5 is located between the two side plates 61. The main gear 64 and the driven gear 66 are meshed and connected. The diameter ratio of the main gear 64 to the driven gear 66 is 2:1. The end of the eccentric rod 67 is fixedly connected to a limit plate.

[0055] The limiting plate fits into the moving frame 68. Connecting plates 610 are symmetrically fixed to both sides of the inner U-shaped rod 65. A spring 611 is fixedly connected between the connecting plate 610 and the outer U-shaped rod 69. A sliding groove 612 is provided at the bottom of the inner U-shaped rod 65.

[0056] The outer U-shaped rod 69 is slidably connected to the slide groove 612. Only one connecting pipe 614 is provided, and there are no less than three spray pipes 615. The slide groove 612 is laterally fixedly connected to a limiting rod 616, and the outer U-shaped rod 69 is slidably connected to the limiting rod 616.

[0057] A linear guide rail 8 is fixedly installed on the upper part of one side of the vertical plate 2. A movable seat 9 is fixedly connected to the output end of the linear guide rail 8. Two upper electric push rods 10 are fixedly installed on the top side of one side of the movable seat 9. A scraper 11 is fixedly connected to the telescopic end of the upper electric push rod 10 through the movable seat 9.

[0058] The telescopic end of the upper electric push rod 10 is slidably connected to the movable seat 9. A screen printing plate 13 is fixedly installed in the middle of one side of the front of the vertical plate 2. A storage bin 12 is fixedly installed on the top side of the screen printing plate 13. A discharge pipe is fixedly installed on the outside of the storage bin 12.

[0059] Example 1: As Figure 4 - Figure 11As shown, during the printing process, the connecting pipe 614 is connected to the air outlet pipe of the external hot air blower. The operator starts the side electric push rod 3, which retracts and drives the base plate 4 to rise. The base plate 4 drives the clamp frame 5 to rise, keeping the top surface of the multiple magnetic block bodies 14 inside the clamp frame 5 in contact with the bottom surface of the screen printing plate 13. The upper electric push rod 10 drives the scraper 11 to fall. The storage tank 12 pumps ink into the discharge pipe through the internal pump body, and then the ink flows out to the top of the screen printing plate 13. Then, the linear guide rail 8 drives the moving seat 9 to move. The moving seat 9 drives the upper electric push rod 10 and the scraper 11 to move laterally, so that the scraper 11 prints ink on the top surface of the magnetic block body 14. Then, the side electric push rod 3 extends and drives the base plate 4 to fall and reset.

[0060] By starting the drive motor 62, the drive motor 62 drives the rotating shaft 63 on one side to rotate. The rotating shaft 63 on one side drives the rotating shaft 63 on the other side to rotate through the clamp frame 5. The rotating shaft 63 drives the main gear 64 to rotate, and the main gear 64 drives the driven gear 66 to rotate. The diameter ratio of the main gear 64 to the driven gear 66 is 2:1, so that when the main gear 64 and the clamp frame 5 rotate half a turn, the driven gear 66 rotates a full turn. The rotation of the driven gear 66 will drive the eccentric rod 67 to rotate. The outer U-shaped rod 69 slides inside the slide groove 612. When the eccentric rod 67 rotates one turn, the moving frame 68 and the outer U-shaped rod 69 move back and forth in one cycle. As the clamp frame 5 rotates, the outer U-shaped rod 69 drives the lower plate 613 and the nozzle 615 to move.

[0061] Furthermore, the outer U-shaped rod 69, in conjunction with the connecting plate 610, compresses the spring 611. The nozzle 615 approaches the printing surface of the magnetic block body 14 and blows out hot air. When the driven gear 66 and the eccentric rod 67 rotate half a turn, the clamp frame 5 is in a vertical state. When the driven gear 66 and the eccentric rod 67 rotate one turn, the clamp frame 5 completes the 180-degree rotation. At this time, the outer U-shaped rod 69 and the nozzle 615 will move back to their original position and move away from the magnetic block body 14. The elasticity of the spring 611 assists the movement of the outer U-shaped rod 69. When the clamp frame 5 rotates in the future, the nozzle 615 will approach again to assist in blowing air, which helps to keep the nozzle 615 close to the printing surface of the magnet, thereby achieving a better heating and drying effect and reducing the possibility of ink peeling off the printing surface due to rotation.

[0062] A positioning component 7 is provided on the inner side of the clamp frame 5. The positioning component 7 includes lead screws 71 arranged on the front and rear sides of the clamp frame 5. The lead screws 71 are rotatably connected to the clamp frame 5. There are no less than two lead screws 71 on each side. The ends of the lead screws 71 on the same side are rotatably connected to the same first pressure strip 72. The two first pressure strips 72 are located inside the clamp frame 5. Sliding rods 74 are slidably installed on the left and right sides of the inner wall of the clamp frame 5. A second pressure strip 75 is fixedly connected to one end of the sliding rod 74. Two inclined blocks 77 are symmetrically fixedly connected to the side of the second pressure strip 75 near the sliding rod 74.

[0063] A second spring 76 is sleeved on the outer side of the sliding rod 74. The two ends of the second spring 76 are fixedly connected to the second pressure bar 75 and the clamp frame 5, respectively. Both ends of the first pressure bar 72 are fixedly connected to L-shaped plates 73. The L-shaped plates 73 abut against the inclined surface of the inclined block 77. An electric vacuum suction cup 78 is fixedly installed in the middle of the first pressure bar 72. Through holes are also opened on the front and rear sides of the clamp frame 5. The electric vacuum suction cup 78 is slidably connected to the through holes.

[0064] Example 2: Figure 12 - Figure 14 As shown, when installing the magnetic block body 14, the operator places the three magnetic block bodies 14 in the middle of the inside of the clamp frame 5, and keeps the top surface of the magnetic block body 14 higher than the top surface of the clamp frame 5, and the bottom surface of the magnetic block body 14 lower than the bottom surface of the clamp frame 5. The two lead screws 71 on the same side are rotated. The rotation of the lead screws 71 drives the first pressure bar 72 on that side to move. The movement of the first pressure bar 72 drives the L-shaped plate 73 to move. The L-shaped plate 73 presses the inclined surfaces of the inclined blocks 77 on both sides.

[0065] When the inclined block 77 is squeezed, it will cause the second pressure bar 75 to move. The second pressure bar 75 will cause the sliding rod 74 to move and stretch the second spring 76, so that the two second pressure bars 75 clamp the left and right sides of the magnetic block body 14 until the first pressure bar 72 on one side clamps the front side of the magnetic block body 14. Finally, the two lead screws 71 on the other side are rotated so that the first pressure bar 72 on the other side clamps the rear side of the magnetic block body 14, thereby achieving a stable positioning of the magnetic block body 14. At the same time, the electric vacuum chuck 78 applies negative pressure to the magnetic block body 14 for adsorption and fixation, further improving the stability of clamping.

[0066] Working principle: When using this device, firstly, as... Figure 1 - Figure 14As shown, the operator connects the connecting pipe 614 to the air outlet duct of the external hot air blower, starts the side electric push rod 3, keeps the top surface of the multiple magnetic block bodies 14 inside the clamp frame 5 in contact with the bottom surface of the screen printing plate 13, the upper electric push rod 10 drives the scraper 11 to descend, then the linear guide rail 8 drives the moving seat 9 to move, the moving seat 9 drives the upper electric push rod 10 and the scraper 11 to move laterally, so that the scraper 11 prints ink on the top surface of the magnetic block body 14, then the side electric push rod 3 extends to drive The base plate 4 descends and resets, activating the drive motor 62. The drive motor 62 rotates one side of the shaft 63, which in turn rotates the other side of the shaft 63 via the clamp frame 5. The shaft 63 drives the main gear 64, which in turn drives the driven gear 66. The diameter ratio of the main gear 64 to the driven gear 66 is 2:1, ensuring that when the main gear 64 and clamp frame 5 rotate half a turn, the driven gear 66 completes a full rotation. This rotation of the driven gear 66 then drives the eccentric rod 67 to rotate. The outer U-shaped rod 69 slides inside the slide groove 612. The eccentric rod 67 rotates one revolution, and the moving frame 68 and the outer U-shaped rod 69 reciprocate one cycle. As the fixture frame 5 flips, the outer U-shaped rod 69 drives the lower plate 613 and the nozzle 615 to move. The outer U-shaped rod 69, in conjunction with the connecting plate 610, compresses the spring 611. The nozzle 615 approaches the printed surface of the magnetic block body 14 and blows out hot air. When the driven gear 66 and the eccentric rod 67 rotate half a revolution, the fixture frame 5 is in a vertical position. When wheel 66 and eccentric rod 67 rotate one revolution, the fixture frame 5 completes the 180-degree rotation. At this time, the outer U-shaped rod 69 and nozzle 615 will move back to their original positions and move away from the magnetic block body 14. The elastic force of spring 611 assists the movement of the outer U-shaped rod 69. When the fixture frame 5 rotates in the future, the nozzle 615 will move closer to the auxiliary air blower again, which makes it easier to keep the nozzle 615 close to the printing surface of the magnet, thereby achieving a better heating and drying effect and reducing the possibility of ink peeling off the printing surface due to rotation.

[0067] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0068] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A printing equipment for neodymium-iron-boron magnet production, comprising a base (1), a magnetic block body (14) and a vertical plate (2) fixedly installed on one side of the top of the base (1), a side electric push rod (3) being fixedly and symmetrically installed on the front side of the lower part of the vertical plate (2); characterized in that Further comprising: A same bottom plate (4) is fixedly connected to the bottom of the telescopic end of the side electric push rod (3), a clamp frame (5) being rotatably installed on the top of the bottom plate (4), a turnover assembly (6) being arranged on the top of the bottom plate (4), and a positioning assembly (7) being arranged on the inner side of the clamp frame (5); The turnover assembly (6) comprises two side plates (61) fixedly and symmetrically installed on the top of the bottom plate (4), a drive motor (62) being fixedly installed on the outer side of one side plate (61), a rotating shaft (63) being rotatably connected to the outer side of the side plate (61), a main gear (64) being fixedly connected to the end of the rotating shaft (63), the output end of the drive motor (62) being fixedly installed on one side of the main gear (64), and both sides of the clamp frame (5) being fixedly connected with the two rotating shafts (63); An inner U-shaped rod (65) is fixedly connected between the two side plates (61), a driven gear (66) being rotatably connected to the outer side of the inner U-shaped rod (65), an eccentric rod (67) being fixedly connected to the outer side of the driven gear (66), a moving frame (68) being sleeved on the outer side of the eccentric rod (67), an outer U-shaped rod (69) being fixedly connected between the two moving frames (68), the outer U-shaped rod (69) being slidably connected with the inner U-shaped rod (65), a lower plate (613) being fixedly installed on the bottom of the outer U-shaped rod (69), a connecting pipe (614) being fixedly installed on one side of the lower plate (613), and a spray pipe (615) being fixedly installed on the other side of the lower plate (613); The drive motor (62) is fixedly installed on one side of the side plate (61) through a fixing rod, the clamp frame (5) is located between the two side plates (61), the main gear (64) is meshingly connected with the driven gear (66), the diameter ratio of the main gear (64) to the driven gear (66) is two to one, and the end of the eccentric rod (67) is fixedly connected with a limiting sheet; The limiting sheet is in contact with the moving frame (68), the two sides of the inner U-shaped rod (65) are fixedly connected with a connecting plate (610), a spring (611) is fixedly connected between the connecting plate (610) and the outer U-shaped rod (69), and a sliding groove (612) is formed in the bottom of the inner U-shaped rod (65); The outer U-shaped rod (69) is slidably connected with the sliding groove (612), only one connecting pipe (614) is arranged, the number of spray pipes (615) is not less than three, a limiting rod (616) is fixedly and transversely connected inside the sliding groove (612), and the outer U-shaped rod (69) is slidably connected with the limiting rod (616).

2. The printing device for neodymium-iron-boron magnet production according to claim 1, characterized in that: The positioning assembly (7) comprises lead screws (71) arranged on the front and back sides of the clamp frame (5), the lead screws (71) are rotationally connected with the clamp frame (5), the number of the lead screws (71) on each side is not less than two, the end portions of the lead screws (71) on the same side are rotationally connected with a same first pressing strip (72), the two first pressing strips (72) are located inside the clamp frame (5), the inner wall of the clamp frame (5) is slidably provided with sliding rods (74) on the left and right sides, one end of each sliding rod (74) is fixedly connected with a second pressing strip (75), and the side, close to the sliding rod (74), of each second pressing strip (75) is fixedly connected with two inclined blocks (77) in a symmetrical mode.

3. The printing device for neodymium-iron-boron magnet production according to claim 2, characterized in that: The outer side of each sliding rod (74) is sleeved with a spring (76), the two ends of each spring (76) are fixedly connected with the second pressing strip (75) and the clamp frame (5), the two ends of each first pressing strip (72) are fixedly connected with L-shaped plates (73), the L-shaped plates (73) abut against the inclined surfaces of the inclined blocks (77), the middle portion of each first pressing strip (72) is fixedly provided with an electric vacuum chuck (78), and the front and back sides of the clamp frame (5) are also provided with through holes, and the electric vacuum chuck (78) is slidably connected with the through holes.

4. The printing device for producing a Nd-Fe-B magnet according to claim 3, characterized in that: The front side of the vertical plate (2) is fixedly provided with a linear guide rail (8) at the upper portion, the output end of the linear guide rail (8) is fixedly connected with a moving seat (9), the top of one side of the moving seat (9) is fixedly provided with two upper electric push rods (10), and the telescopic end of each upper electric push rod (10) is fixedly connected with a scraper (11) penetrating through the moving seat (9).

5. The printing device for neodymium-iron-boron magnet production according to claim 4, characterized in that: The telescopic end of each upper electric push rod (10) is slidably connected with the moving seat (9), the front side of the vertical plate (2) is fixedly provided with a screen printing plate (13) at the middle portion, the top side of the screen printing plate (13) is fixedly provided with a storage barrel (12), and the outer side of the storage barrel (12) is fixedly provided with a discharge pipe.

6. A method of using a printing apparatus for neodymium-iron-boron magnet production, characterized in that The printing equipment for producing Nd-Fe-B magnets adopts the printing equipment according to claim 5, and the use steps are as follows: Step one: when the magnetic block bodies (14) are fixed, three magnetic block bodies (14) are arranged in the middle inside the clamp frame (5), the lead screws (71) are rotated, the lead screws (71) drive the first pressing strips (72) to move, the L-shaped plates (73) press the inclined surfaces of the inclined blocks (77) on the two sides, the inclined blocks (77) are pressed and drive the second pressing strips (75) to move, and the outer sides of the magnetic block bodies (14) are conveniently fixed on all sides; Step two: when printing is performed, the operator starts the side electric push rod (3) to work, the top surface of the magnetic block body (14) is kept abutting against the bottom surface of the screen printing plate (13), the upper electric push rod (10) drives the scraper (11) to descend, then the linear guide rail (8) drives the moving seat (9) to move, so that the scraper (11) prints ink on the top surface of the magnetic block body (14). Step three: after printing, the operator starts the drive motor (62) to work, so that the main gear (64) drives the gear (66) to rotate, with the turning of the clamp frame (5), the outer U-shaped rod (69) drives the lower plate (613) and the nozzle (615) to move, and the outer U-shaped rod (69) is matched with the connecting plate (610) to compress the spring one (611), the nozzle (615) is close to the printing surface of the magnetic block body (14) and blows out hot air; Step four: when the gear (66) and eccentric rod (67) rotate a circle, the clamp frame (5) turns one hundred and eighty degrees to complete, at this time the outer U-shaped rod (69) and the nozzle (615) will move back to normal and away from the magnetic block body (14), the spring one (611) helps the movement of the outer U-shaped rod (69), when the clamp frame (5) turns over, the nozzle (615) will be close to the auxiliary blowing again, which is convenient for keeping the nozzle (615) close to the magnet printing surface.

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