A printing device for NdFeB permanent magnet material

Abstract

The present invention relates to the technical field of NdFeB permanent magnet material processing, and in particular to a printing device for NdFeB permanent magnet material, comprising a frame, a chain conveyor, a connecting block, a rotating shaft and a conveying frame, etc. The frame is provided with a chain conveyor, and the chain conveyor is evenly spaced and connected with connecting blocks arranged in pairs, and the connecting blocks are rotatably connected with rotating shafts, and a conveying frame for placing NdFeB permanent magnet material is connected between two rotating shafts on each pair of connecting blocks. The present invention can print NdFeB permanent magnet material through a screen printer, and the gear can be driven to rotate through a rack, and the gear drives the NdFeB permanent magnet material to rotate, and the NdFeB permanent magnet material is turned over, so that the screen printer can print the other side of the NdFeB permanent magnet material, so that the NdFeB permanent magnet material can be double-sided printed, and one device can complete the double-sided printing of NdFeB permanent magnet material, which can save space and reduce equipment costs.

Description

Technical Field

[0001] This invention relates to the field of neodymium iron boron permanent magnet material processing technology, and in particular to a printing device for neodymium iron boron permanent magnet materials. Background Technology

[0002] Neodymium iron boron (NdFeB) permanent magnets have excellent magnetic properties and are widely used in various industries, such as electric motors and generators. Printing is a key process in the processing of NdFeB permanent magnets, where specific patterns are coated onto the surface of the NdFeB permanent magnets to meet specific functional requirements.

[0003] Currently, NdFeB permanent magnet materials are mainly printed using screen printing. During the printing process, it is sometimes necessary to print on both sides of the NdFeB permanent magnet material to print some logos or brand information to meet the appearance design requirements. However, a single screen printing machine can only print on one side of the NdFeB permanent magnet material, so a flipping device and another screen printing machine are needed to perform double-sided printing. The three machines working together to complete the double-sided printing of NdFeB permanent magnet materials will occupy a lot of space and increase the cost of equipment use. Summary of the Invention

[0004] To overcome the drawbacks of using three devices to complete double-sided printing of NdFeB permanent magnet materials, which would occupy a large space and increase the cost of equipment use, this invention provides a printing device for NdFeB permanent magnet materials.

[0005] The technical solution of this invention is: a printing device for neodymium iron boron permanent magnet materials, comprising a frame, a chain conveyor, connecting blocks, rotating shafts, a conveyor frame, a support frame, an electric guide rail, a sliding plate, a screen printing machine, gears, a sliding frame, an adjusting screw, a rack, a clamping mechanism, and a support mechanism. The chain conveyor is mounted on the frame, and pairs of connecting blocks are evenly spaced on the chain conveyor. Each connecting block is rotatably connected to a rotating shaft. A conveyor frame for placing neodymium iron boron permanent magnet materials is connected between the two rotating shafts on each pair of connecting blocks. A support frame for supporting the conveyor frame is connected to the frame, and the support frame is located on the chain conveyor. Inside the conveyor, the top of the support frame has an opening, and electric guide rails are installed on both the front and rear sides of the support frame. Slide plates are connected to the sliders of the two electric guide rails. A screen printing machine is installed between the two slide plates. Gears are connected to the rotating shafts through one-way clutches. Slide frames are slidably connected to the bottom of the slide plates. Adjusting screws are rotatably connected to the slide plates. The adjusting screws and slide frames are connected by threads. Racks are connected to the slide frames. The racks mesh with the gears as they move downwards. The support frame is equipped with a clamping mechanism for clamping the neodymium iron boron permanent magnet material in the conveyor frame. The support frame is also equipped with a support mechanism for supporting the conveyor frame.

[0006] More preferably, the clamping mechanism includes clamping plates, contact plates, a first spring, connecting plates, and contact rods. Clamping plates for clamping neodymium iron boron permanent magnet materials are slidably connected to both the front and rear sides of the conveying frame. Contact plates are connected to both clamping plates. A first spring is connected between the conveying frame and the contact plates. Connecting plates are symmetrically connected to both the front and rear sides of the top of the support frame. Contact rods are connected to both the two connecting plates on the front side and the two connecting plates on the rear side. A first inclined part is provided on the left side of each contact rod. The contact plate will contact the first inclined part of the contact rod during the process of moving to the right.

[0007] More preferably, the screen printing machine includes an electric slide rail, a moving plate, an electric push rod, a sliding rod, a slide bar, a first buffer spring, a scraper, a connecting frame, a rotating block, a rotating frame, a flexible housing, a second buffer spring, and a screen. Electric slide rails are connected to the slide plates. A moving plate is connected between the sliders of the two electric slide rails. Electric push rods are connected to the top left and right sides of the moving plate. Slide bars are connected to the telescopic rods of the electric push rods. The slide bars slide through the moving plate. Slide bars are slidably connected to the lower front and rear sides of the slide bars. A first buffer spring is connected between the slide bars. A scraper is connected to the lower ends of the two slide bars on the same slide bar. Connecting frames are connected to the bottom left and right sides of the electric slide rails. Rotating blocks are rotatably connected to the connecting frames. A rotating frame is slidably connected between two opposing rotating blocks. A second buffer spring is connected between the rotating frame and the rotating block. A flexible housing is connected between the two rotating frames. The screen is connected to the bottom of the flexible housing. The bottom of the scraper contacts the screen.

[0008] More preferably, the printing apparatus further includes a support mechanism, which includes a support plate, a second spring, and a removing assembly. Support plates for supporting the conveyor frame are slidably connected to both the left and right sides of the opening. A second spring connects the support plate and the support frame. The removing assembly is used to remove the support plate so that the support plate no longer supports the conveyor frame.

[0009] More preferably, the removal assembly includes contact shafts and push rods. Contact shafts are connected to both the front and rear sides of the bottom of the support plate. Four grooves are opened in the middle of the top of the support frame, and the four contact shafts are located in the four grooves respectively. Two push rods are connected to the bottom of the sliding frame. Two first notches for the push rods to pass through are opened on both the front and rear sides of the support frame. The push rods and contact shafts are located in the first notches. A second inclined part is provided at the bottom of the push rod. When the push rod moves downward, the second inclined part of the push rod will contact the contact shaft. The push rod will push the contact shaft to remove the support plate, so that the support plate no longer supports the conveyor frame. A third inclined part is provided in the middle of the push rod.

[0010] More preferably, the printing apparatus further includes a drying mechanism, which includes a mounting frame, a first fan, a mounting plate, and a second fan. The mounting frame is connected to the top of the support frame, the first fan is connected to the mounting frame, the mounting plate is connected inside the support frame, the second fan is connected to the mounting plate, and a ventilation opening is provided at the top of the support frame.

[0011] More preferably, the printing apparatus further includes a collection mechanism, which includes a frame and a collection frame. The frame is connected to the frame, and a collection frame for collecting the printed neodymium iron boron permanent magnet material is slidably connected inside the frame.

[0012] More preferably, the collection mechanism also includes a limiting screw, and the frame is threadedly connected to the limiting screw for blocking the collection frame.

[0013] More preferably, the support frame has a second notch on both the front and rear sides for the rack to pass through. Beneficial effects

[0014] 1. This invention enables the printing of neodymium iron boron permanent magnet materials using a screen printing machine. A rack and pinion mechanism drives a gear to rotate, which in turn rotates the neodymium iron boron permanent magnet material, flipping it over so that the screen printing machine can print on the other side of the material. This allows for double-sided printing of neodymium iron boron permanent magnet materials, and a single machine can complete the double-sided printing of neodymium iron boron permanent magnet materials, saving space and reducing equipment costs.

[0015] 2. When the screen printing machine prints neodymium iron boron permanent magnet materials, the support plate can support the conveyor frame, making the conveyor frame more stable and preventing the conveyor frame from swaying.

[0016] 3. The first and second fans can be used to dry the coating on the printed NdFeB permanent magnet material, preventing deformation caused by the coating not drying properly in subsequent processes. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0018] Figure 2 A three-dimensional structural schematic diagram of the rotating shaft, conveying frame, support frame, opening, and gear of the present invention is shown;

[0019] Figure 3 A three-dimensional structural schematic diagram of the screen printing machine, gears, sliding frame, adjusting screw and rack of the present invention is shown;

[0020] Figure 4 A three-dimensional structural schematic diagram of the clamping mechanism of the present invention is shown;

[0021] Figure 5A three-dimensional structural schematic diagram of the clamping plate, contact plate, and first spring of the present invention is shown;

[0022] Figure 6 A three-dimensional structural schematic diagram of the screen printing machine of the present invention is shown;

[0023] Figure 7 A three-dimensional structural schematic diagram of the slide bar, the first buffer spring, and the scraper of the present invention is shown;

[0024] Figure 8 A three-dimensional structural schematic diagram of the first buffer spring of the present invention is shown;

[0025] Figure 9 A three-dimensional structural schematic diagram of the rotating frame, the second buffer spring, and the wire mesh of the present invention is shown;

[0026] Figure 10 A three-dimensional structural schematic diagram of the rotating block of the present invention is shown;

[0027] Figure 11 A three-dimensional structural schematic diagram of the support mechanism of the present invention is shown;

[0028] Figure 12 A three-dimensional structural schematic diagram of the push rod, the second inclined portion, and the third inclined portion of the present invention is shown;

[0029] Figure 13 A first cross-sectional view of the support frame of the present invention is shown;

[0030] Figure 14 A three-dimensional structural schematic diagram of the air-drying mechanism of the present invention is shown;

[0031] Figure 15 A second cross-sectional view of the support frame of the present invention is shown;

[0032] Figure 16 A three-dimensional structural schematic diagram of the collection mechanism of the present invention is shown;

[0033] Figure 17 A three-dimensional structural schematic diagram of the limiting screw of the present invention is shown.

[0034] The above-mentioned figures include the following reference numerals: 1. Frame, 2. Chain conveyor, 3. Connecting block, 4. Rotating shaft, 5. Conveyor frame, 6. Support frame, 7. Opening, 8. Electric guide rail, 9. Slide plate, 10. Screen printing machine, 11. Gear, 12. Sliding frame, 13. Adjusting screw, 14. Rack, 15. Clamping plate, 16. Contact plate, 17. First spring, 18. Connecting plate, 19. Contact rod, 20. First inclined part, 201. Electric slide rail, 202. Moving plate, 203. Electric push rod, 204. Sliding rod, 205. Sliding rod, 20 6. First buffer spring; 207. Scraper; 208. Connecting frame; 209. Rotating block; 2010. Rotating frame; 2110. Flexible box; 2011. Second buffer spring; 2012. Wire mesh; 21. Support plate; 22. Second spring; 23. Contact shaft; 231. First notch; 24. Push rod; 25. Second inclined part; 26. Third inclined part; 27. Mounting bracket; 28. First fan; 29. ​​Mounting plate; 30. Second fan; 31. Ventilation opening; 32. Frame; 33. Collection frame; 34. Limiting screw; 35. Second notch. Detailed Implementation

[0035] 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.

[0036] Example 1: See Figures 1-13A printing device for neodymium iron boron permanent magnet materials includes a frame 1, a chain conveyor 2, connecting blocks 3, rotating shafts 4, conveyor frames 5, support frames 6, electric guide rails 8, a sliding plate 9, a screen printing machine 10, gears 11, a sliding frame 12, adjusting screws 13, racks 14, a clamping mechanism, and a support mechanism. The chain conveyor 2 is mounted on the upper part of the frame 1. Pairs of connecting blocks 3 are evenly spaced on the chain conveyor 2, and rotating shafts 4 are rotatably connected to each connecting block 3. A conveyor frame 5 is connected between the two rotating shafts 4 on each pair of connecting blocks 3. A support frame 6 is connected to the upper part of the frame 1 and is located inside the chain conveyor 2. An opening 7 is located in the middle of the top of the support frame 6, and electric guide rails 8 are installed on both the front and rear sides of the middle of the support frame 6. Two electric guide rails 8 have slide plates 9 connected to the sides of their sliders that are close to each other. A screen printing machine 10 is installed between the two slide plates 9. Gears 11 are connected to the rotating shafts 4 via one-way clutches. Slide frames 12 are slidably connected to the bottom of each slide plate 9. Adjusting screws 13 are rotatably connected to the middle of the bottom of each slide plate 9. The adjusting screws 13 and slide frames 12 are connected by threads. A rack 14 is connected to the middle of the bottom of each slide frame 12. The rack 14 will mesh with the gears 11 during downward movement. The support frame 6 has second notches 35 on the front and rear sides of the middle for the rack 14 to pass through. The support frame 6 is equipped with a clamping mechanism for clamping the neodymium iron boron permanent magnet material in the conveying frame 5. The support frame 6 is also equipped with a support mechanism for supporting the conveying frame 5.

[0037] See Figure 4 and Figure 5 The clamping mechanism includes a clamping plate 15, a contact plate 16, a first spring 17, a connecting plate 18, and a contact rod 19. The clamping plate 15 is slidably connected to both the front and rear sides of the conveying frame 5. The side of the clamping plate 15 that is far away from each other is connected to the contact plate 16. The side of the clamping plate 15 that is close to the contact plate 16 is fitted with the first spring 17. The two ends of the first spring 17 are connected to the conveying frame 5 and the contact plate 16, respectively. The top of the support frame 6 is symmetrically connected to both the front and rear sides of the top. The rear side of the two front connecting plates 18 is connected to the contact rod 19. The front side of the two rear connecting plates 18 is also connected to the contact rod 19. The left side of the contact rod 19 is provided with a first inclined part 20. The contact plate 16 will contact the first inclined part 20 of the contact rod 19 during the process of moving to the right. The side of the two contact rods 19 that is close to each other is provided with Teflon. Teflon can reduce the friction between the contact rod 19 and the contact plate 16 and prevent the contact rod 19 and the contact plate 16 from wearing.

[0038] The worker places neodymium iron boron permanent magnet material into the conveyor frame 5. The chain conveyor 2 drives the conveyor frame 5 to move to the right, conveying the neodymium iron boron permanent magnet material to the right. The movement of the conveyor frame 5 to the right also drives the contact plate 16 to move to the right. During the movement to the right, the contact plate 16 will contact the first inclined part 20 of the contact rod 19. Under the action of the first inclined part 20 of the contact rod 19, the contact plates 16 on the front and rear sides will move towards each other. The first spring 17 is compressed, and the contact plates 16 drive the clamping plates 15 on the front and rear sides to move towards each other. The clamping plates 15 can clamp the neodymium iron boron permanent magnet material in the conveyor frame 5. When the neodymium iron boron permanent magnet material moves to directly below the screen printing machine 10, the electric guide rail 8 drives the slide plate 9. Moving downwards, the slide plate 9 drives the screen printing machine 10 and rack 14 downwards. During this downward movement, rack 14 engages with gear 11, causing gear 11 to rotate. Under the action of the one-way clutch, gear 11 does not drive shaft 4 to rotate. When rack 14 moves downwards and disengages from gear 11, gear 11 stops rotating. When screen printing machine 10 moves downwards and comes into contact with the NdFeB permanent magnet material, it prints on the NdFeB permanent magnet material. After printing is complete, the electric guide rail 8 drives the slide plate 9 upwards. The slide plate 9 drives screen printing machine 10 and rack 14 upwards. Screen printing machine 10 moves upwards and disengages from the NdFeB permanent magnet material. During the upward movement of rack 14... The rack 14 engages with gear 11, causing gear 11 to rotate in the opposite direction. Gear 11 then drives shaft 4 to rotate, which in turn drives conveyor frame 5 to rotate. Opening 7 provides space for conveyor frame 5 to rotate normally. Conveyor frame 5 can rotate neodymium iron boron permanent magnet material, flipping it over so that screen printing machine 10 can print on the other side. This allows for double-sided printing of neodymium iron boron permanent magnet material, enabling one machine to complete double-sided printing, saving space and reducing equipment costs. When rack 14 moves upward and disengages from gear 11, gear 11 stops rotating. At this point, the neodymium iron boron permanent magnet material has rotated exactly 180 degrees. After the NdFeB permanent magnet material is printed, the chain conveyor 2 transports the printed NdFeB permanent magnet material to the right, and the contact plate 16 will also continue to move to the right. When the contact plate 16 moves to the right and disengages from the contact rod 19, under the action of the first spring 17, the clamping plates 15 on the front and rear sides move away from each other, releasing the printed NdFeB permanent magnet material. If it is single-sided printing, the NdFeB permanent magnet material does not need to be flipped. The operator can rotate the adjusting screw 13, which drives the sliding frame 12 to move back and forth. The sliding frame 12 drives the rack 14 to move back and forth, moving the rack 14 away so that the rack 14 does not mesh with the gear 11 when it moves up and down, thus preventing the NdFeB permanent magnet material from flipping.

[0039] like Figures 6-10As shown, the screen printing machine 10 includes an electric slide rail 201, a moving plate 202, an electric push rod 203, a sliding rod 204, a slide bar 205, a first buffer spring 206, a scraper 207, a connecting frame 208, a rotating block 209, a rotating frame 2010, a flexible housing 2110, a second buffer spring 2011, and a screen 2012. The two sliding plates 9 are connected to the side of each other with an electric slide rail 201. A moving plate 202 is connected between the sliders of the two electric slide rails 201. Electric push rods 203 are connected to the top left and right sides of the moving plate 202. Slide bars 204 are connected to the telescopic rods of the electric push rods 203. The slide bars 204 slide through the moving plate 202. Slide bars 204 are slidably connected to the front and rear sides of the lower part of the slide bars 204. A first buffer spring 206 is connected between rod 205, slide rod 205 and slide rod 204. The first buffer spring 206 is located inside slide rod 204. The lower ends of two slide rods 205 on the same slide rod 204 are connected to scraper 207. Connecting frames 208 are connected to the left and right sides of the bottom of electric slide rail 201. Rotating blocks 209 are rotatably connected to the lower part of connecting frames 208. Rotating frames 2010 are slidably connected between two front-to-back rotating blocks 209. A second buffer spring 2011 is connected between rotating frames 2010 and rotating blocks 209. A flexible box 2110 is connected between the two rotating frames 2010. A wire mesh 2012 is connected to the bottom of flexible box 2110. The bottom of scraper 207 is in contact with wire mesh 2012.

[0040] As the slide plate 9 moves downward, the flexible box 2110 and the screen 2012 also move downward. The flexible box 2110 and the screen 2012 will contact the top of the NdFeB permanent magnet material as they move downward. The electric slide rail 201 drives the moving plate 202 to move left and right, and the moving plate 202 drives the scraper 207 to move left and right, printing on the top of the NdFeB permanent magnet material. If the top of the NdFeB permanent magnet material is curved, when the screen 2012 moves downward and contacts the top of the NdFeB permanent magnet material, the rotating frame 2010 will adaptively rotate, and the second buffer spring 2011 will adaptively deform, allowing the screen 2012 to fully adhere to the top of the NdFeB permanent magnet material. The scraper 207 moves left and right, and under the action of the first buffer spring 206, the scraper 207 will adaptively move up and down, maintaining constant contact with the screen 2012, thus enabling printing on the curved NdFeB permanent magnet material.

[0041] See Figures 11-13 It also includes a support mechanism, which includes a support plate 21, a second spring 22 and a removing assembly. The support plate 21 is slidably connected to both the left and right sides of the opening 7. Two second springs 22 are connected between the support plate 21 and the support frame 6. The removing assembly is used to remove the support plate 21 so that the support plate 21 no longer supports the conveyor frame 5.

[0042] See Figures 11-13 The removable assembly includes a contact shaft 23 and a push rod 24. The bottom of the support plate 21 is connected to the contact shaft 23 on both the front and rear sides. The top of the support frame 6 has four sliding grooves in the middle. The four contact shafts 23 are located in the four sliding grooves respectively, and the contact shafts 23 can slide left and right in the sliding grooves. The bottom of the sliding frame 12 is connected to the push rod 24 on both the left and right sides. The middle of the support frame 6 has symmetrical first notches 231 on both the front and rear sides for the push rod 24 to pass through. The push rod 24 and the contact shaft 23 are both located in the first notches 231. The lower part of the push rod 24 is provided with a second inclined part 25. When the push rod 24 moves downward, the second inclined part 25 of the push rod 24 will contact the contact shaft 23. The middle of the push rod 24 is provided with a third inclined part 26.

[0043] When the neodymium iron boron permanent magnet material moves directly below the screen printing machine 10, the conveyor frame 5 will disengage from the support frame 6, and the support frame 6 will no longer support the conveyor frame 5. At this time, the support plate 21 can support the conveyor frame 5, making the conveyor frame 5 more stable. The downward movement of the sliding frame 12 will drive the push rod 24 to move downward. The second inclined part 25 of the push rod 24 will contact the contact shaft 23. The push rod 24 can push the contact shaft 23, causing the left and right contact shafts 23 to move away from each other. The contact shaft 23 drives the two support plates 21 to move away from each other, removing the support plates 21, so that... When the support plate 21 no longer supports the conveyor frame 5, the second spring 22 is compressed. At this time, the push rod 24 continues to move downward, and the third inclined part 26 of the push rod 24 contacts the contact shaft 23. Under the action of the second spring 22, the two support plates 21 move towards each other, causing the support plate 21 to support the conveyor frame 5 again. Subsequently, the third inclined part 26 of the push rod 24 disengages from the contact shaft 23, and then the screen printing machine 10 moves downward and contacts the neodymium iron boron permanent magnet material. The screen printing machine 10 prints on the neodymium iron boron permanent magnet material. At this time, the support plate 21 supports the conveyor frame 5, which can prevent... After the conveyor frame 5 swings and printing is completed, the electric guide rail 8 drives the slide plate 9 to move upward. The slide plate 9 drives the screen printing machine 10 and the sliding frame 12 to move upward. The sliding frame 12 drives the push rod 24 to move upward. The third inclined part 26 of the push rod 24 contacts the contact shaft 23. The push rod 24 can push the contact shaft 23, causing the contact shafts 23 on the left and right sides to move away from each other. The contact shaft 23 drives the two support plates 21 to move away from each other, removing the support plates 21 so that they no longer support the conveyor frame 5, allowing the NdFeB permanent magnet material to flip normally. After the permanent magnet material is flipped, the push rod 24 continues to move upward. The second inclined part 25 of the push rod 24 will contact the contact shaft 23. Under the action of the second spring 22, the two support plates 21 will move towards each other, so that the support plates 21 can support the conveyor frame 5 again. If it is single-sided printing, the neodymium iron boron permanent magnet material does not need to be flipped. The rack 14 can be moved away so that the rack 14 will not mesh with the gear 11 when it moves up and down, so that the neodymium iron boron permanent magnet material cannot be flipped. When the rack 14 is moved away, the push rod 24 will also be moved away so that the push rod 24 will not contact the contact shaft 23 when it moves up and down.

[0044] Example 2: Based on Example 1, see... Figure 14 and Figure 15 It also includes a drying mechanism, which includes a mounting frame 27, a first fan 28, a mounting plate 29, and a second fan 30. The mounting frame 27 is connected to the top right side of the support frame 6. The first fan 28 is connected to the front and rear sides of the top of the mounting frame 27. The mounting plate 29 is connected to the inner right side of the support frame 6. The second fan 30 is connected to the front and rear of the mounting plate 29. A ventilation opening 31 is opened on the top right side of the support frame 6.

[0045] After the NdFeB permanent magnet material is printed, the chain conveyor 2 transports the printed NdFeB permanent magnet material to the right. The printed NdFeB permanent magnet material will move between the first fan 28 and the second fan 30. The first fan 28 blows air downwards, and the air will blow to the top of the printed NdFeB permanent magnet material to dry the coating on the top of the printed NdFeB permanent magnet material, so as to avoid deformation caused by the coating not drying in subsequent processes. The second fan 30 blows air upwards, and the air will blow through the ventilation port 31 to the bottom of the printed NdFeB permanent magnet material to dry the coating on the bottom of the printed NdFeB permanent magnet material, so as to avoid deformation caused by the coating not drying in subsequent processes.

[0046] See Figure 16 and Figure 17 It also includes a collection mechanism, which includes a frame 32, a collection frame 33 and a limiting screw 34. The frame 32 is connected to the lower right side of the frame 1, and the collection frame 33 is slidably connected inside the frame 32. The limiting screw 34 is threadedly connected to the lower right side of the frame 32.

[0047] After the NdFeB permanent magnet material is printed, the chain conveyor 2 transports the printed NdFeB permanent magnet material to the right. When the printed NdFeB permanent magnet material is transported to the right side of the chain conveyor 2, it will fall into the collection frame 33 for easy collection later. The limit screw 34 can block the collection frame 33 to prevent it from sliding out of the frame 32.

[0048] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A printing device for NdFeB permanent magnet material, comprising a frame (1) and a chain conveyor (2), wherein the frame (1) is provided with the chain conveyor (2), wherein: The invention also comprises a connecting block (3), a rotating shaft (4), a conveying frame (5), a supporting frame (6), an electric guide rail (8), a slide plate (9), a screen printing machine (10), a gear (11), a sliding frame (12), an adjusting screw (13), a rack (14), a clamping mechanism and a supporting mechanism. The chain conveyor (2) is evenly spaced and connected to the connecting blocks (3) in pairs. The connecting blocks (3) are rotatably connected to the rotating shafts (4). A conveying frame (5) for placing the NdFeB permanent magnet material is connected between the two rotating shafts (4) on each pair of connecting blocks (3). The frame (1) is connected to a supporting frame (6) for supporting the conveying frame (5). The supporting frame (6) is located in the chain conveyor (2). The top of the supporting frame (6) is provided with an opening (7). The front of the supporting frame (6) is provided with a plurality of connecting blocks (3). Electric guide rails (8) are installed on both sides of the rear, and slide plates (9) are connected to the sliders of the two electric guide rails (8). A screen printing machine (10) is installed between the two slide plates (9). The rotating shaft (4) is connected to a gear (11) through a one-way clutch. The bottom of the slide plate (9) is slidably connected to a sliding frame (12). The slide plate (9) is rotatably connected to an adjusting screw (13). The adjusting screw (13) and the sliding frame (12) are connected by threads. The sliding frame (12) is connected to a rack (14). The rack (14) meshes with the gear (11) during the downward movement. The support frame (6) is provided with a clamping mechanism for clamping the neodymium iron boron permanent magnet material in the conveying frame (5). The support frame (6) is provided with a supporting mechanism for supporting the conveying frame (5); The clamping mechanism comprises a clamping plate (15), a contact plate (16), a first spring (17), a connecting plate (18) and a contact rod (19). The front and rear sides of the conveying frame (5) are slidably connected with clamping plates (15) for clamping the NdFeB permanent magnet material. The clamping plates (15) are connected with the contact plates (16). The first spring (17) is connected between the conveying frame (5) and the contact plate (16). The front and rear sides of the top of the support frame (6) are symmetrically connected with connecting plates (18). The two connecting plates (18) on the front side are connected with the contact rod (19) in common. The two connecting plates (18) on the rear side are also connected with the contact rod (19) in common. The left part of the contact rod (19) is provided with a first inclined portion (20). When the contact plate (16) moves to the right, it will contact the first inclined portion (20) of the contact rod (19).

2. The printing device for NdFeB permanent magnet material according to claim 1, characterized in that: The screen printing machine (10) comprises an electric slide rail (201), a movable plate (202), an electric push rod (203), a sliding rod (204), a sliding rod (205), a first buffer spring (206), a scraper (207), a connecting frame (208), a rotating block (209), a rotating frame (210), a flexible box (2110), a second buffer spring (2011) and a screen (2012). The slide plate (9) is connected to the electric slide rail (201), the movable plate (202) is connected between the sliders of the two electric slide rails (201), the left and right sides of the top of the movable plate (202) are connected to the electric push rod (203), the telescopic rod of the electric push rod (203) is connected to the sliding rod (204), the sliding rod (204) slides through the movable plate (202), and the front and rear sides of the lower part of the sliding rod (204) are connected to the sliding rod (204). The two sides are slidably connected with a slide bar (205), a first buffer spring (206) is connected between the slide bar (205) and the slide bar (204), the lower ends of the two slide bars (205) on the same slide bar (204) are commonly connected with a scraper (207), the left and right sides of the bottom of the electric slide rail (201) are connected with a connecting frame (208), a rotating block (209) is rotatably connected to the connecting frame (208), a rotating frame (2010) is slidably connected between two rotating blocks (209) facing each other front and back, a second buffer spring (2011) is connected between the rotating frame (2010) and the rotating block (209), a flexible box (2110) is connected between the two rotating frames (2110), a wire mesh (212) is connected to the bottom of the flexible box (2110), and the bottom of the scraper (207) is in contact with the wire mesh (2012).

3. A printing device for NdFeB permanent magnet material according to claim 2, characterized in that: The support mechanism comprises a support plate (21), a second spring (22) and a removal assembly. The left and right sides of the opening (7) are slidably connected with support plates (21) for supporting the conveying frame (5). The second spring (22) is connected between the support plate (21) and the support frame (6). The removal assembly is used to remove the support plate (21) so that the support plate (21) no longer supports the conveying frame (5).

4. The printing device for NdFeB permanent magnet material according to claim 3, characterized in that: The removal assembly comprises a contact shaft (23) and a push rod (24). The front and rear sides of the bottom of the support plate (21) are connected to the contact shaft (23). Four slide grooves are opened in the middle of the top of the support frame (6). The four contact shafts (23) are respectively located in the four slide grooves. Two push rods (24) are connected to the bottom of the sliding frame (12). The front and rear sides of the support frame (6) are opened to two first notches (231) for the push rods (24) to pass through. The push rods (24) and the contact shaft (23) are both located in the first notches (231). The lower part of the push rod (24) is provided with a second inclined portion (25). When the push rod (24) moves downward, the second inclined portion (25) of the push rod (24) will contact the contact shaft (23). The push rod (24) will push the contact shaft (23) to remove the support plate (21) so that the support plate (21) no longer supports the conveying frame (5). The middle part of the push rod (24) is provided with a third inclined portion (26).

5. The printing device for NdFeB permanent magnet material according to claim 4, characterized in that: The printing device also includes an air drying mechanism, which includes a mounting frame (27), a first fan (28), a mounting plate (29) and a second fan (30); the mounting frame (27) is connected to the top of the support frame (6); the mounting frame (27) is connected to the first fan (28); the mounting plate (29) is connected inside the support frame (6); the mounting plate (29) is connected to the second fan (30); and a vent (31) is provided at the top of the support frame (6).

6. The printing device for NdFeB permanent magnet material according to claim 5, characterized in that: The printing device also includes a collecting mechanism, which includes a frame (32) and a collecting frame (33). The frame (32) is connected to the frame (1), and the collecting frame (33) for collecting printed NdFeB permanent magnet material is slidably connected inside the frame (32).

7. The printing device for NdFeB permanent magnet material according to claim 6, characterized in that: The collection mechanism also includes a limiting screw (34), and the frame body (32) is threadedly connected with the limiting screw (34) for blocking the collection frame (33).

8. The printing device for NdFeB permanent magnet material according to claim 7, characterized in that: The support frame (6) is provided with a second notch (35) on both the front and rear sides thereof for the rack (14) to pass through.

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