Hot pressing device and manufacturing process of lithium phosphate target material

Abstract

The invention discloses a lithium phosphate target material hot pressing device and a manufacturing process, and belongs to the technical field of lithium phosphate target material hot pressing. In order to solve the problems of non-uniform hot pressing of lithium phosphate target materials and incomplete cleaning of graphite molds in existing products, the invention provides the following technical scheme: the lithium phosphate target material hot-pressing device comprises a rack, a graphite mold part for storing a lithium phosphate target material, a target material hot-pressing mechanism for shaping the lithium phosphate target material and a mold overturning and cleaning mechanism for winding an adhesive tape are mounted on the rack. According to the invention, the graphite mold part for storing the lithium phosphate target material is matched with the target material hot-pressing mechanism for shaping the lithium phosphate target material and the mold overturning and cleaning mechanism for winding the adhesive tape for use, so that lithium phosphate powder stored in the mold frame can be pressed into the required lithium phosphate target material; and meanwhile, after the lithium phosphate target material is taken away, lithium phosphate powder remaining in the mold can be cleaned away, and the cleanliness of the mold is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of hot pressing of lithium phosphate target materials, in particular to a device and a manufacturing process for hot pressing of lithium phosphate target materials. Background Art

[0002] Lithium phosphate target is an inorganic compound with the chemical formula Li3PO4. It is a white crystalline powder and is widely used in phosphors, special glass and optical disc materials. However, lithium-ion batteries are widely used in various electronic products due to their high operating voltage, long cycle life and stable discharge performance. Thin-film lithium batteries are a new type of lithium-ion battery developed on the basis of traditional lithium-ion batteries. Their basic working principle is the same as that of traditional lithium-ion batteries.

[0003] In the production process of lithium phosphate targets, hot pressing of lithium phosphate powder is one of the important production processes of lithium phosphate targets. However, there are some problems in the hot pressing process. For example, when the sieved powder is quickly added to the graphite mold, the lithium phosphate powder will pile up together to form a pointed cone structure with a high middle and low sides. As a result, in the later process of compressing the powder into a target, the hardness in the middle of the target will be higher than the edge hardness, resulting in uneven hot pressing of the material. In addition, after the lithium phosphate target is formed in the graphite mold and then taken out, there may be a small amount of powder inside the graphite mold. If the powder cannot be cleaned up, it will affect the next molding quality of the lithium phosphate target. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a device and a manufacturing process for hot pressing of a lithium phosphate target material. By using a graphite mold part for storing the lithium phosphate target material in combination with a target material hot pressing mechanism for shaping the lithium phosphate target material and a mold flipping and cleaning mechanism for winding up the tape, the lithium phosphate powder stored in the mold frame can be pressed into the required lithium phosphate target material, and the uniformity of the lithium phosphate target material is ensured. At the same time, after the lithium phosphate target material is taken away, the lithium phosphate powder remaining in the mold can be cleaned up, ensuring the cleanliness of the mold, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A device for hot pressing a lithium phosphate target material, comprising a frame, on which a graphite mold for storing the lithium phosphate target material, a target hot pressing mechanism for shaping the lithium phosphate target material, and a mold turning and cleaning mechanism for winding an adhesive tape are installed, wherein the target hot pressing mechanism and the mold turning and cleaning mechanism are respectively located on the top and side of the graphite mold part; The graphite mold part is composed of a mold frame, a corrugated plate, a rotating shaft, and a flip gear, wherein the mold frame is arranged inside the frame for storing lithium phosphate powder, the corrugated plate is fixedly connected to an outer wall of one side of the mold frame by screws, the rotating shaft is fixedly connected to the outer walls of both sides of the mold frame, and the flip gear is fixedly connected to the outer wall of one end of the rotating shaft, wherein the flip gear includes two, which are horizontally symmetrically distributed; The target material hot pressing mechanism comprises a hydraulic push rod 1 fixedly connected to the outer wall of the top of the frame by screws, a hot pressing plate fixedly connected to the piston rod of the hot pressing plate by screws, the piston rod of the hydraulic push rod 1 is fixedly connected to an L-shaped frame, and one end of the L-shaped frame close to the piston rod of the hydraulic push rod 1 is arranged on the top of the hot pressing plate, and a toggle piece is arranged at the bottom of the outer wall of the end of the L-shaped frame away from the hydraulic push rod 1, and the toggle piece is staggered between the wave plate, and the inner wall of the top of the frame is fixedly connected to a symmetrically distributed translation kit by screws, and the outer wall of the bottom of the translation kit is welded with adjacent thin columns, and the outer wall of the bottom of the thin column is welded with a rectangular block, and the rectangular block is welded to the outer wall with a limiting strip, wherein the limiting strip is divided into two parts, one end close to the rectangular block is arranged obliquely upward, and the other end away from the rectangular block is arranged horizontally; The mold flipping and cleaning mechanism is composed of a cylinder 1, an H-shaped connecting frame, a spring 2, a rack, a limit sleeve, an elastic reset member, a docking column, a diagonal rod, a mounting plate, a cross, a servo motor, a central gear, a side gear, and a brush. The cylinder 1 is arranged inside the frame, the H-shaped connecting frame is fixedly connected to the piston rod of the cylinder 1, the spring 2 is fixedly connected to the outer walls on both sides of the H-shaped connecting frame, the rack is fixedly connected to the outer wall of one end of the spring 2, and the rack and the flipping gear are meshed with each other, the limit sleeve is welded to the outer walls on both sides of the H-shaped connecting frame, and the rack is slidably connected to the inner wall of the limit sleeve, and the two elastic reset members are fixedly installed. On the inner walls on both sides of the H-shaped connecting frame, and the docking column is fixedly connected between the two elastic reset parts, the symmetrically distributed oblique rods are welded to the outer walls of the docking columns, and the mounting plate is welded to the ends of the two oblique rods, the cross is welded to the bottom outer wall of the mounting plate, the servo motor is fixedly connected to the center of the bottom outer wall of the cross by screws, the center gear is fixedly connected to the output shaft of the servo motor, the side gears are meshed on the outer wall of the center gear, and the center gear and the side gears are both rotatably connected to the inner wall of the cross, wherein the side gears include four, which are respectively meshed on the four sides of the center gear, and the brush is fixedly connected to the top outer wall of the side gear.

[0006] As a further solution of the present invention, the frame includes an operating table arranged at the bottom of the graphite mold part, a control cabinet fixedly connected to the outer wall of the bottom of the operating table, a top plate arranged on the outer wall of the top of the operating table, and columns fixedly connected between the operating table and the top plate, wherein there are four columns distributed at the corners around the operating table and the top plate.

[0007] As a further solution of the present invention, the toggle member includes a sliding sleeve slidably connected to the outer wall of the L-shaped frame, a cone welded to the outer wall of one side of the sliding sleeve, a fastening bolt screwed to the inner wall of the other side of the sliding sleeve, and the outer wall of one end of the fastening bolt is tightly attached to the outer wall of the L-shaped frame, wherein the cone is staggered between the wave plate.

[0008] As a further solution of the present invention, the translation kit is composed of a top sleeve, a top column, a spring, an extension column, and a limit ring, wherein the top sleeve is fixedly connected to the bottom outer wall of the top plate by screws, the top column is slidably connected to the inner wall of the top sleeve, the spring is connected between the top sleeve and the top column, the extension column is welded to the outer wall of one end of the top column, and the extension column is penetrated through the inner wall of one end of the top sleeve away from the top column, and the limit ring is fixedly connected to the outer wall of one end of the extension column.

[0009] As a further solution of the present invention, the elastic reset member includes a fixed sleeve fixedly mounted on the inner wall of the H-shaped connecting frame, a rotating sleeve rotatably connected to the inner wall of the fixed sleeve, a torsion spring fixedly connected between the fixed sleeve and the rotating sleeve, and a whistle-shaped member installed on the outer wall of one side of the rotating sleeve, wherein the whistle-shaped member is used in combination with a limiting strip, and the limiting strip is used to control the inclination angle of the whistle-shaped member.

[0010] As a further solution of the present invention, the top outer wall of the frame is provided with symmetrically distributed strip grooves, and the top sleeve is fixedly connected to the bottom outer wall of the strip grooves by screws.

[0011] As a further solution of the present invention, a hydraulic push rod 2 is installed on the outer wall of the bottom of the operating table, which is located on the inner wall of the control cabinet, and the piston rod of the hydraulic push rod 2 is fixedly connected to a support plate, wherein the support plate is arranged at the bottom of the mold frame to support the mold frame so that the mold frame remains horizontally placed.

[0012] As a further solution of the present invention, a mold positioning frame is fixedly connected to the outer walls of the two rotating shafts, and the mold frame is placed on the inner wall of the mold positioning frame, and a cylinder 2 is fixedly connected to the top outer wall of the mold positioning frame, and a pressure block is fixedly connected to the piston rod of the cylinder 2, and the pressure block is tightly attached to the top outer wall of the mold frame, wherein the length of the piston rod of the cylinder 2 is longer than the depth of the positioning groove of the mold positioning frame.

[0013] As a further solution of the present invention, a vertical plate is welded to the outer wall of the top of the operating table, and the cylinder 1 is fixedly connected to the outer wall of one side of the vertical plate by screws.

[0014] A manufacturing process of a hot pressing device for a lithium phosphate target material, characterized in that it comprises the following steps: Step 1: quickly add the prepared sieved lithium phosphate powder into the mold frame of the graphite mold part to complete the raw material feeding operation; Step 2: In the target hot pressing mechanism, the hot pressing plate is pushed downward by a hydraulic push rod. During the movement, the toggle piece on the L-shaped frame contacts the corrugated plate on the upper mold frame. During the continuous contact between the toggle piece and the corrugated plate, the mold frame will vibrate horizontally, thereby spreading the lithium phosphate powder inside the mold frame to facilitate subsequent flattening. Step 3: After the lithium phosphate powder is flattened, the hydraulic push rod 2 pushes the support plate upward so that the support plate fits the bottom of the mold frame to support the mold frame so that the mold frame remains horizontal. During this process, the hot pressing plate is pressed into the inside of the mold frame to flatten the lithium phosphate powder on the one hand and heat it into a lithium phosphate target on the other hand. After the hydraulic push rod 1 and the hydraulic push rod 2 are reset, the lithium phosphate target is removed; Step 4: In the mold flipping and cleaning mechanism, the H-shaped connecting frame is pushed by cylinder 1, so that the rack approaches the flipping gear and gradually meshes with the flipping gear, thereby driving the mold frame to flip 180°, and then the H-shaped connecting frame continues to move toward the mold frame, spring 2 is compressed, and the mold frame always keeps its opening facing downward. At this time, the whistle-shaped piece will contact the limiting strip, and the rotation of the whistle-shaped piece is controlled by the limiting strip, and then the rotation of the mounting plate is controlled, so that the brush is changed from an inclined setting to a vertical placement, and the brush moves from the outside of the mold frame to the inside of the mold frame. Finally, the servo motor drives the center gear to rotate and simultaneously controls the brushes on the top of multiple side gears to clean the inner wall of the mold frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By using a graphite mold for storing lithium phosphate targets in conjunction with a target hot pressing mechanism for shaping lithium phosphate targets and a mold flipping and cleaning mechanism for winding tape, the lithium phosphate powder stored in the mold frame can be pressed into the required lithium phosphate target, and the uniformity of the lithium phosphate target material is ensured. At the same time, after the lithium phosphate target is taken away, the lithium phosphate powder remaining in the mold can be cleaned up to ensure the cleanliness of the mold.

[0016] 2. In the target hot pressing mechanism, the hot pressing plate is pushed downward by the hydraulic push rod, and the toggle piece on the L-shaped frame will contact the corrugated plate on the upper mold frame. During the continuous contact between the toggle piece and the corrugated plate, the mold frame will vibrate horizontally, thereby spreading the lithium phosphate powder inside the mold frame, improving the uniformity of the material after subsequent molding of the lithium phosphate powder, and effectively improving the quality of the lithium phosphate target.

[0017] 3. In the mold flipping and cleaning mechanism, the H-type connecting frame is pushed by cylinder 1, so that the rack approaches the flipping gear and gradually meshes with the flipping gear, thereby driving the mold frame to flip and keep the opening facing downward. On this basis, the H-type connecting frame continues to move toward the mold frame, and spring 2 is compressed. At this time, the whistle-shaped piece will contact the limiting strip plate and control the rotation of the whistle-shaped piece, thereby controlling the rotation of the mounting plate, so that the brush moves from the outside of the mold frame to the inside of the mold frame. The servo motor drives the central gear to rotate, which can simultaneously control the brushes on the top of multiple side gears to clean the inner wall of the mold frame, effectively removing the lithium phosphate powder remaining in the mold to avoid affecting the next hot pressing of the lithium phosphate target. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a hot pressing device and manufacturing process of a lithium phosphate target; Figure 2 It is a schematic diagram of the operation of a hot pressing device for lithium phosphate target and a mold turning and cleaning mechanism in the manufacturing process; Figure 3 A schematic diagram of the internal partial structure of a frame of a hot pressing device and a manufacturing process for a lithium phosphate target; Figure 4 for Figure 3 Schematic diagram of the graphite mold component connection structure; Figure 5 for Figure 3 Schematic diagram of target hot pressing mechanism; Figure 6 for Figure 5 A partial cross-sectional structural schematic diagram of a translation kit; Figure 7 A schematic diagram of a hot pressing device for a lithium phosphate target and a mold flipping and cleaning mechanism in a manufacturing process; Figure 8 for Figure 7 Schematic diagram of the local structure of the mold turning cleaning mechanism Figure 1 ; Fig. 9 for Figure 7 Schematic diagram of the local structure of the mold turning cleaning mechanism Figure 2 ; Fig.10 for Figure 7 Schematic diagram of the split structure of the elastic reset part.

[0019] In the figure: 1, frame; 2, graphite mold part; 21, mold frame; 22, corrugated plate; 23, rotating shaft; 24, turning gear; 3, target material hot pressing mechanism; 31, hydraulic push rod 1; 32, hot pressing plate; 33, L-shaped frame; 34, toggle piece; 35, translation kit; 351, top sleeve; 352, top column; 353, spring 1; 354, extension column; 355, limit ring; 36, thin column; 37, rectangular block; 38, limit strip; 4, mold turning cleaning mechanism; 41, cylinder 1; 42, H-shaped connecting frame; 43, spring 2; 44. rack; 45. limit sleeve; 46. elastic reset member; 461. fixed sleeve; 462. rotating sleeve; 463. torsion spring; 464. whistle-shaped member; 47. docking column; 48. inclined rod; 49. mounting plate; 410. cross; 411. servo motor; 412. center gear; 413. side gear; 414. brush; 5. operating table; 6. control cabinet; 7. column; 8. top plate; 9. hydraulic push rod 2; 10. support plate; 11. mold positioning frame; 12. cylinder 2; 13. pressure block; 14. vertical plate. DETAILED DESCRIPTION

[0020] See also Figure 1 In an embodiment of the present invention, a device for hot pressing a lithium phosphate target material comprises a frame 1, on which a graphite mold part 2 for storing the lithium phosphate target material, a target hot pressing mechanism 3 for shaping the lithium phosphate target material, and a mold turning and cleaning mechanism 4 for winding up an adhesive tape are installed, wherein the target hot pressing mechanism 3 and the mold turning and cleaning mechanism 4 are respectively located on the top and side of the graphite mold part 2.

[0021] The frame 1 includes an operating table 5 arranged at the bottom of the graphite mold 2, a control cabinet 6 fixedly connected to the outer wall of the bottom of the operating table 5, a top plate 8 arranged on the outer wall of the top of the operating table 5, and a column 7 fixedly connected between the operating table 5 and the top plate 8, wherein the columns 7 include four columns distributed at the corners of the operating table 5 and the top plate 8. The frame 1 is mainly composed of the operating table 5, the top plate 8, the columns 7 and the control cabinet 6 at the bottom of the operating table 5, wherein the operating table 5, the top plate 8 and the columns 7 are mainly used to assemble and support the graphite mold 2, the target hot pressing mechanism 3 and the mold turning and cleaning mechanism 4, and the control cabinet 6 is mainly used as a control center to control the circuit system of the electrical equipment.

[0022] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Fig.10In the embodiment of the present invention, the graphite mold part 2 is composed of a mold frame 21, a corrugated plate 22, a rotating shaft 23, and a flip gear 24, wherein the mold frame 21 is arranged inside the frame 1 for storing lithium phosphate powder, and the corrugated plate 22 is fixedly connected to the outer wall of one side of the mold frame 21 by screws, and the corrugated structure on the surface of the corrugated plate 22 can contact with the toggle member 34 to generate vibration. The rotating shaft 23 is fixedly connected to the outer walls on both sides of the mold frame 21, and the flip gear 24 is fixedly connected to the outer wall at one end of the rotating shaft 23, wherein the flip gear 24 includes two, which are horizontally symmetrically distributed. The flip gear 24 can cooperate with the rack 44, and the rack 44 moves to drive the flip gear 24 to rotate, thereby controlling the flipping of the mold frame 21.

[0023] The target material hot pressing mechanism 3 includes a hydraulic push rod 31 fixedly connected to the outer wall of the top of the frame 1 by screws. The hydraulic push rod 31 is responsible for the lifting and lowering operation of the target material hot pressing mechanism 3, and can press the hot pressing plate 32 into the mold frame 21. The hot pressing plate 32 is fixedly connected to the piston rod of the hot pressing plate 32 by screws, and a heat conducting plate is distributed at the bottom of the hot pressing plate 32. The heat provided by the hot pressing plate 32 is used to heat the heat conducting plate and then heat the lithium phosphate powder. The piston rod of the hydraulic push rod 31 is fixedly connected to an L-shaped frame 33, and the end of the L-shaped frame 33 close to the piston rod of the hydraulic push rod 31 is arranged on the top of the hot pressing plate 32, and the bottom of the outer wall of the end of the L-shaped frame 33 away from the hydraulic push rod 31 is provided with a toggle 34, and the toggle 34 is staggered between the wave plate 22. The toggle 34 is mainly used in conjunction with the wave plate 22, and the mold frame 21 is vibrated by the up and down movement of the toggle 34, thereby flattening the lithium phosphate powder. The top inner wall of the frame 1 is fixedly connected with a symmetrically distributed translation kit 35 by screws. The translation kit 35 is used to balance the horizontal displacement of the mold frame 21 during the shaking process. The outer wall at the bottom of the translation kit 35 is welded with adjacent thin columns 36, and the outer wall at the bottom of the thin columns 36 is welded with a rectangular block 37. The rectangular block 37 is welded to the outer wall with a limiting strip 38, wherein the limiting strip 38 is divided into two parts, one end close to the rectangular block 37 is tilted upward, and the other end away from the rectangular block 37 is horizontally set. The limiting strip 38 is used in conjunction with the whistle-shaped piece 464. When the whistle-shaped piece 464 contacts the limiting strip 38, the inclination angle of the whistle-shaped piece 464 will change, thereby controlling the rotation of the mounting plate 49.

[0024] The mold flip cleaning mechanism 4 is composed of a cylinder 1 41, an H-shaped connecting frame 42, a spring 2 43, a rack 44, a limit sleeve 45, an elastic reset member 46, a docking column 47, a diagonal rod 48, a mounting plate 49, a cross 410, a servo motor 411, a central gear 412, a side gear 413, and a brush 414, wherein the cylinder 1 41 is arranged inside the frame 1. The cylinder 1 41 has a horizontal driving function, and is mainly responsible for pushing the mold flip cleaning mechanism 4 close to the mold frame 21. The H-shaped connecting frame 42 is fixedly connected to the piston rod of the cylinder 1 41, the spring 2 43 is fixedly connected to the outer walls on both sides of the H-shaped connecting frame 42, the rack 44 is fixedly connected to the outer wall of one end of the spring 2 43, and the rack 44 and the flip gear 24 are meshed with each other. When the rack 44 contacts and meshes with the flip gear 24, the rack 44 can continue to move forward until it moves to the end of the gear teeth. At this time, the H-shaped connecting frame 42 can continue to move, and the spring 2 43 will be compressed. The limit sleeve 45 is welded to the outer walls on both sides of the H-shaped connecting frame 42, and the rack 44 is slidably connected to the inner wall of the limit sleeve 45. The limit sleeve 45 is used to maintain the horizontal movement of the rack 44. The two elastic reset members 46 are fixedly installed on the inner walls on both sides of the H-shaped connecting frame 42, and the docking column 47 is fixedly connected between the two elastic reset members 46. The elastic reset member 46 is used to ensure that the docking column 47 can always remain in the initial position when not subjected to force. The symmetrically distributed inclined rods 48 are all welded to the outer wall of the docking column 47, and the mounting plate 49 is welded to the ends of the two inclined rods 48. The cross 410 is welded to the bottom outer wall of the mounting plate 49. The servo motor 411 is fixedly connected to the center of the bottom outer wall of the cross 410 by screws, and the center gear 412 is fixedly connected to the output shaft of the servo motor 411. The servo motor 411, as a driving device, is mainly responsible for controlling the rotation of the center gear 412. The side gears 413 are meshed on the outer wall of the center gear 412, and the center gear 412 and the side gears 413 are both rotatably connected to the inner wall of the cross 410, wherein the side gears 413 include four, which are respectively meshed on the four sides of the center gear 412, and the brush 414 is fixedly connected to the top outer wall of the side gear 413. The servo motor 411 first drives the central gear 412 to rotate, and then uses the central gear 412 to drive the four side gears 413 to rotate, thereby controlling the four brushes 414 to rotate synchronously to clean the inner wall of the mold frame 21.

[0025] See also Figure 5In the embodiment of the present invention, the toggle member 34 includes a sleeve slidably connected to the outer wall of the L-shaped frame 33, a cone welded on the outer wall of one side of the sleeve, and a fastening bolt screwed on the inner wall of the other side of the sleeve, and the outer wall of one end of the fastening bolt is tightly attached to the outer wall of the L-shaped frame 33, wherein the cone is staggered between the wave plate 22. The sleeve can slide up and down along the outer wall of the L-shaped frame 33 to determine the position of the toggle member 34. Once the position is determined, the fastening bolt is tightened so that the end of the fastening bolt is tightly attached to the L-shaped frame 33, so that the toggle member 34 can be fixed on the L-shaped frame 33. The cone on the toggle member 34 is mainly responsible for contacting with the wave plate 22 to control the horizontal vibration of the mold frame 21.

[0026] See also Figure 5 and Figure 6 In the embodiment of the present invention, the translation kit 35 is composed of a top sleeve 351, a top column 352, a spring 353, an extension column 354, and a stop ring 355, wherein the top sleeve 351 is fixedly connected to the bottom outer wall of the top plate 8 by screws, the top column 352 is slidably connected to the inner wall of the top sleeve 351, the spring 353 is connected between the top sleeve 351 and the top column 352, the extension column 354 is welded to the outer wall of one end of the top column 352, and the extension column 354 is penetrated and arranged on the inner wall of one end of the top sleeve 351 away from the top column 352, and the stop ring 355 is fixedly connected to the outer wall of one end of the extension column 354. When the cone on the toggle member 34 moves downward to contact the wave plate 22, so that the mold frame 21 vibrates horizontally, the sliding range of the top column 352 inside the top sleeve 351 can be controlled by the action of the spring 353.

[0027] See also Figure 5 , Figure 7 and Fig.10 In the embodiment of the present invention, the elastic reset member 46 comprises a fixed sleeve 461 fixedly mounted on the inner wall of the H-shaped connecting frame 42, a rotating sleeve 462 rotatably connected to the inner wall of the fixed sleeve 461, a torsion spring 463 fixedly connected between the fixed sleeve 461 and the rotating sleeve 462, and a whistle-shaped member 464 mounted on the outer wall of one side of the rotating sleeve 462, wherein the whistle-shaped member 464 is used in conjunction with the limiting strip 38, and the limiting strip 38 is used to control the tilt angle of the whistle-shaped member 464. The fixed sleeve 461 and the rotating sleeve 462 can rotate, but under the action of the torsion spring 463, the rotating sleeve 462 will reset, so that after the cleaning work is completed, the whistle-shaped member 464 can return to the initial tilt angle.

[0028] See also Figure 1 , Figure 6In the embodiment of the present invention, the top outer wall of the frame 1 is provided with symmetrically distributed strip grooves, and the top sleeves 351 are fixedly connected to the bottom outer wall of the strip grooves by screws. The two top sleeves 351 are both arranged at the bottom of the top plate 8, and the top sleeves 351 are fixed by screws installed in the strip grooves. See also Figure 1 and Figure 4 In the embodiment of the present invention, a hydraulic push rod 29 is installed on the outer wall of the bottom of the operating table 5 located on the inner wall of the control cabinet 6, and the piston rod of the hydraulic push rod 29 is fixedly connected with a support plate 10, wherein the support plate 10 is arranged at the bottom of the mold frame 21, and is used to support the mold frame 21, so that the mold frame 21 is kept horizontally placed. Before hot pressing, the lithium phosphate powder in the mold frame 21 needs to be pushed upward by the hydraulic push rod 29, and the support plate 10 contacts the bottom of the mold frame 21 to keep it horizontally placed.

[0029] See also Figure 4 In the embodiment of the present invention, the outer walls of the two rotating shafts 23 are fixedly connected with the mold positioning frame 11, and the mold frame 21 is placed on the inner wall of the mold positioning frame 11, and the top outer wall of the mold positioning frame 11 is fixedly connected with the cylinder 2 12, and the piston rod of the cylinder 2 12 is fixedly connected with the pressing block 13, and the pressing block 13 is tightly attached to the top outer wall of the mold frame 21, wherein the length of the piston rod of the cylinder 2 12 is longer than the depth of the positioning groove of the mold positioning frame 11. The cylinder 2 12 pushes the pressing block 13 to fix the mold frame 21 between the pressing block 13 and the mold positioning frame 11, so as to prevent the mold frame 21 from falling off from the mold positioning frame 11 after flipping.

[0030] See also Figure 1 , Figure 2 and Figure 7 In the embodiment of the present invention, a vertical plate 14 is welded to the top outer wall of the operating table 5, and the cylinder 1 41 is fixedly connected to one side outer wall of the vertical plate 14 by screws. The vertical plate 14 is used to fix the cylinder 1 41, so that the cylinder 1 41 can be arranged inside the frame 1.

[0031] The manufacturing process of the present invention is as follows: Step 1: quickly adding the prepared sieved lithium phosphate powder into the mold frame 21 in the graphite mold part 2 to complete the raw material feeding operation; Step 2: In the target hot pressing mechanism 3, the hot pressing plate 32 is pushed downward by the hydraulic push rod 1 31. During the movement, the toggle member 34 on the L-shaped frame 33 contacts the wave plate 22 on the upper mold frame 21. During the continuous contact between the toggle member 34 and the wave plate 22, the mold frame 21 will vibrate horizontally, thereby spreading the lithium phosphate powder inside the mold frame 21 to facilitate subsequent flattening. Step 3: After the lithium phosphate powder is flattened, the hydraulic push rod 2 9 pushes the support plate 10 upward so that the support plate 10 fits the bottom of the mold frame 21 to support the mold frame 21 so that the mold frame 21 remains horizontal. During this process, the hot pressing plate 32 is pressed into the interior of the mold frame 21 to flatten the lithium phosphate powder on the one hand and heat it into a lithium phosphate target on the other hand. After the hydraulic push rod 1 31 and the hydraulic push rod 2 9 are reset, the lithium phosphate target is removed; Step 4: In the mold flipping and cleaning mechanism 4, the H-shaped connecting frame 42 is pushed by the cylinder 1 41, so that the rack 44 approaches the flipping gear 24 and gradually meshes with the flipping gear 24, thereby driving the mold frame 21 to flip 180°, and then the H-shaped connecting frame 42 continues to move toward the direction of the mold frame 21, the spring 2 43 is compressed, and the mold frame 21 always keeps the opening facing downward. At this time, the whistle-shaped piece 464 will contact the limiting strip 38, and the whistle-shaped piece 464 is controlled to rotate by the limiting strip 38, and then the mounting plate 49 is controlled to rotate, so that the brush 414 is changed from an inclined setting to a vertical placement, and the brush 414 moves from the outside of the mold frame 21 to the inside of the mold frame 21, and finally the central gear 412 is driven to rotate by the servo motor 411 while controlling the brushes 414 on the top of multiple side gears 413 to clean the inner wall of the mold frame 21.

[0032] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for hot pressing a lithium phosphate target, comprising a frame (1), characterized in that: The frame (1) is provided with a graphite mold part (2) for storing lithium phosphate target materials, a target material hot pressing mechanism (3) for shaping the lithium phosphate target materials, and a mold turning and cleaning mechanism (4) for winding up the tape, wherein the target material hot pressing mechanism (3) and the mold turning and cleaning mechanism (4) are respectively located on the top and side of the graphite mold part (2); The graphite mold component (2) is composed of a mold frame (21), a corrugated plate (22), a rotating shaft (23), and a flip gear (24), wherein the mold frame (21) is arranged inside the frame (1) and is used to store lithium phosphate powder, the corrugated plate (22) is fixedly connected to an outer wall of one side of the mold frame (21) by screws, the rotating shaft (23) is fixedly connected to the outer walls of both sides of the mold frame (21), and the flip gear (24) is fixedly connected to the outer wall of one end of the rotating shaft (23), wherein the flip gear (24) includes two, which are horizontally symmetrically distributed; The target material hot pressing mechanism (3) comprises a hydraulic push rod (31) fixedly connected to the outer wall of the top of the frame (1) by screws, and a hot pressing plate (32) fixedly connected to the piston rod of the hot pressing plate (32) by screws, the piston rod of the hydraulic push rod (31) is fixedly connected to an L-shaped frame (33), and one end of the L-shaped frame (33) close to the piston rod of the hydraulic push rod (31) is arranged on the top of the hot pressing plate (32), and the bottom of the outer wall of the end of the L-shaped frame (33) away from the hydraulic push rod (31) is provided with a toggle member (34), and the toggle member (34) is provided on the outer wall of the end of the L-shaped frame (33) away from the hydraulic push rod (31). The moving parts (34) are staggeredly arranged between the wave plates (22); the inner wall of the top of the frame (1) is fixedly connected with a symmetrically distributed translation kit (35) by screws; the outer wall of the bottom of the translation kit (35) is welded with adjacent thin columns (36); the outer wall of the bottom of the thin columns (36) is welded with a rectangular block (37); the rectangular block (37) is welded to the outer wall with a limiting strip plate (38); wherein the limiting strip plate (38) is divided into two parts, one end close to the rectangular block (37) is arranged obliquely upward, and the other end away from the rectangular block (37) is arranged horizontally; The mold turning and cleaning mechanism (4) is composed of a cylinder 1 (41), an H-shaped connecting frame (42), a spring 2 (43), a rack (44), a limiting sleeve (45), an elastic reset member (46), a docking column (47), a diagonal rod (48), a mounting plate (49), a cross (410), a servo motor (411), a central gear (412), a side gear (413), and a brush (414), wherein the cylinder 1 (41) is arranged inside the frame (1). The H-shaped connecting frame (42) is fixedly connected to the piston rod of the cylinder 1 (41), the spring 2 (43) is fixedly connected to the outer walls of both sides of the H-shaped connecting frame (42), the rack (44) is fixedly connected to the outer wall of one end of the spring 2 (43), and the rack (44) and the flip gear (24) are meshed with each other, the limiting sleeve (45) is welded to the outer walls of both sides of the H-shaped connecting frame (42), and the rack (44) is slidably connected to the inner wall of the limiting sleeve (45), and the two elastically resilient connecting frames (42) are connected to the outer wall of the H-shaped connecting frame (42). The positioning members (46) are fixedly mounted on the inner walls of both sides of the H-shaped connecting frame (42), and the docking column (47) is fixedly connected between the two elastic reset members (46), the symmetrically distributed oblique rods (48) are welded to the outer walls of the docking columns (47), and the mounting plate (49) is welded to the ends of the two oblique rods (48), the cross (410) is welded to the bottom outer wall of the mounting plate (49), and the servo motor (411) is fixedly connected to the bottom of the cross (410) by screws. At the center of the outer wall, the center gear (412) is fixedly connected to the output shaft of the servo motor (411), the side gears (413) are meshed with the outer wall of the center gear (412), and the center gear (412) and the side gears (413) are both rotatably connected to the inner wall of the cross (410), wherein the side gears (413) include four, which are respectively meshed with four sides of the center gear (412), and the brush (414) is fixedly connected to the top outer wall of the side gear (413).

2. The hot pressing device for a lithium phosphate target according to claim 1, characterized in that: The frame (1) comprises an operating table (5) arranged at the bottom of the graphite mold member (2), a control cabinet (6) fixedly connected to the outer wall of the bottom of the operating table (5), a top plate (8) arranged on the outer wall of the top of the operating table (5), and a column (7) fixedly connected between the operating table (5) and the top plate (8), wherein the columns (7) include four columns distributed at the corners around the operating table (5) and the top plate (8).

3. The hot pressing device for a lithium phosphate target according to claim 1, characterized in that: The toggle member (34) comprises a sliding sleeve slidably connected to the outer wall of the L-shaped frame (33), a cone welded to the outer wall of one side of the sliding sleeve, and a fastening bolt screwed to the inner wall of the other side of the sliding sleeve, wherein the outer wall of one end of the fastening bolt is tightly attached to the outer wall of the L-shaped frame (33), wherein the cone is staggeredly distributed between the corrugated plate (22).

4. The hot pressing device for a lithium phosphate target according to claim 1, characterized in that: The translation kit (35) is composed of a top sleeve (351), a top column (352), a spring (353), an extension column (354), and a limiting ring (355), wherein the top sleeve (351) is fixedly connected to the bottom outer wall of the top plate (8) by screws, the top column (352) is slidably connected to the inner wall of the top sleeve (351), the spring (353) is connected between the top sleeve (351) and the top column (352), the extension column (354) is welded to the outer wall of one end of the top column (352), and the extension column (354) is penetrated and arranged on the inner wall of one end of the top sleeve (351) away from the top column (352), and the limiting ring (355) is fixedly connected to the outer wall of one end of the extension column (354).

5. The hot pressing device for a lithium phosphate target according to claim 1, characterized in that: The elastic reset member (46) comprises a fixed sleeve (461) fixedly mounted on the inner wall of the H-shaped connecting frame (42), a rotating sleeve (462) rotatably connected to the inner wall of the fixed sleeve (461), a torsion spring (463) fixedly connected between the fixed sleeve (461) and the rotating sleeve (462), and a whistle-shaped member (464) mounted on the outer wall of one side of the rotating sleeve (462), wherein the whistle-shaped member (464) is used in combination with a limiting strip (38), and the limiting strip (38) is used to control the inclination angle of the whistle-shaped member (464).

6. The hot pressing device for a lithium phosphate target according to claim 1, characterized in that: The top outer wall of the frame (1) is provided with symmetrically distributed strip grooves, and the top sleeve (351) is fixedly connected to the bottom outer wall of the strip groove by means of screws.

7. The hot pressing device for a lithium phosphate target according to claim 2, characterized in that: A hydraulic push rod 2 (9) is installed on the outer wall of the bottom of the operating table (5) located on the inner wall of the control cabinet (6), and the piston rod of the hydraulic push rod 2 (9) is fixedly connected to a support plate (10), wherein the support plate (10) is arranged at the bottom of the mold frame (21) and is used to support the mold frame (21) so that the mold frame (21) can be kept horizontally placed.

8. The hot pressing device for a lithium phosphate target according to claim 1, characterized in that: The outer walls of the two rotating shafts (23) are fixedly connected to a mold positioning frame (11), and the mold frame (21) is placed on the inner wall of the mold positioning frame (11). The top outer wall of the mold positioning frame (11) is fixedly connected to a second cylinder (12), and the piston rod of the second cylinder (12) is fixedly connected to a pressure block (13), and the pressure block (13) is tightly attached to the top outer wall of the mold frame (21), wherein the length of the piston rod of the second cylinder (12) is longer than the depth of the positioning groove of the mold positioning frame (11).

9. The hot pressing device for a lithium phosphate target according to claim 2, characterized in that: A vertical plate (14) is welded to the top outer wall of the operating table (5), and the cylinder 1 (41) is fixedly connected to the outer wall of one side of the vertical plate (14) by means of screws.

10. A process for manufacturing a hot pressing device for a lithium phosphate target material as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: quickly add the prepared sieved lithium phosphate powder into the mold frame (21) in the graphite mold part (2) to complete the raw material feeding operation; Step 2: In the target material hot pressing mechanism (3), the hot pressing plate (32) is pushed downward by a hydraulic push rod (31). During the movement, the toggle member (34) on the L-shaped frame (33) contacts the corrugated plate (22) on the upper mold frame (21). During the continuous contact between the toggle member (34) and the corrugated plate (22), the mold frame (21) generates horizontal vibration, thereby spreading the lithium phosphate powder inside the mold frame (21) to facilitate subsequent flattening. Step 3: After the lithium phosphate powder is flattened, the second hydraulic push rod (9) pushes the support plate (10) upwards so that the support plate (10) fits the bottom of the mold frame (21) to support the mold frame (21) so that the mold frame (21) remains horizontal. During this process, the hot pressing plate (32) is pressed into the interior of the mold frame (21) to flatten the lithium phosphate powder on the one hand and heat it into a lithium phosphate target on the other hand. After the first hydraulic push rod (31) and the second hydraulic push rod (9) are reset, the lithium phosphate target is removed; Step 4: In the mold turning and cleaning mechanism (4), the cylinder 1 (41) pushes the H-shaped connecting frame (42), so that the rack (44) approaches the turning gear (24) and gradually meshes with the turning gear (24), thereby driving the mold frame (21) to turn 180 degrees. After that, the H-shaped connecting frame (42) continues to move toward the mold frame (21), the spring 2 (43) is compressed, and the mold frame (21) always keeps the opening facing downward. At this time, the whistle-shaped piece (464) will contact The limiting strip (38) controls the rotation of the whistle-shaped member (464) through the limiting strip (38), thereby controlling the rotation of the mounting plate (49), so that the brush (414) is changed from being tilted to being placed vertically, and the brush (414) moves from the outside of the mold frame (21) to the inside of the mold frame (21), and finally the servo motor (411) drives the central gear (412) to rotate and simultaneously controls the brushes (414) on the top of the plurality of side gears (413) to clean the inner wall of the mold frame (21).

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