Diffusion plate extrusion forming device and forming process thereof

Abstract

The invention relates to a diffusion plate extrusion forming device and a forming process thereof, and relates to the technical field of diffusion plate production, the diffusion plate extrusion forming device comprises a main body, an upper mold and a lower mold, and further comprises a cutting assembly arranged in the lower mold; the driving mechanism is arranged in the main body; the driving mechanism comprises a first gear rotationally connected to the interior of the main body. An output shaft of a driving air cylinder pushes a rack to move, the rack can drive a first gear and a protruding block to rotate, the protruding block can push a sliding ring to move, the sliding ring can drive a sliding block to slide, the sliding block can make contact with the surface of an extrusion block, and the sliding block can extrude and push the extrusion block and an edge cutting tool to move upwards; and finally, the cutting assembly moves upwards through the driving air cylinder and accurately reaches the edge position of the diffusion plate, burrs, influencing the quality, around the diffusion plate are rapidly and favorably cut off, and therefore the quality of the subsequent diffusion plate extrusion procedure is effectively improved.

Description

Technical Field

[0001] This application relates to the production of diffusion plates, and in particular to a diffusion plate extrusion molding device and its molding process. Background Art

[0002] At present, a diffusion plate extrusion molding device is a professional device for manufacturing diffusion plates. It forms a diffusion plate with specific optical properties and structure by extruding heated and molten plastic raw materials under high pressure through a mold with a specific shape; According to the publication number CN214294274U, titled "A Diffusion Plate Molding Die", which includes a bottom die and a top die. A connecting seat is fixedly installed at the top of the top die, and two symmetrically distributed feet are fixedly installed at the bottom of the bottom die. A mold cavity is formed inside the bottom die. Bearings located in the front and back of the mold cavity are fixedly installed inside the bottom die. A rotating shaft is fixedly installed between the two bearings. An elliptical shaft is fixedly installed on the outer side of the rotating shaft. A bottom plate is fixedly installed inside the mold cavity. A mold base is movably installed inside the mold cavity. A sliding seat is fixedly installed at the bottom of the mold base, and a cushion ring is fixedly installed at the bottom of the sliding seat. This diffusion plate molding die has the advantage of being easy to demold, solving the problem that it is difficult to take out the finished product from the inside of the mold after injection molding, resulting in difficult demolding, which affects the production of diffusion plates; In view of the above related technologies, during the extrusion process, the raw materials are subjected to strong pressure from the top die and the bottom die inside the mold cavity, and thus deform to form a diffusion plate with a preset shape. However, the raw materials are extremely prone to over-extrusion or poor flow at the edges of the mold cavity. When the raw materials are over-extruded at the edges of the mold cavity, some raw materials will overflow into the tiny gap between the mold cavity and the mold base, or accumulate at the edges of the mold cavity, resulting in irregular burrs at the edges of the formed diffusion plate. Summary of the Invention

[0003] The purpose of this application is to provide a diffusion plate extrusion molding device, which can drive a trimming tool to cut the burrs around the diffusion plate during the extrusion process, improving the quality of the formed diffusion plate.

[0004] In a first aspect, the diffusion plate extrusion molding device provided by this application adopts the following technical solution: It includes a main body, an upper mold, and a lower mold, and further includes: A trimming assembly, which is arranged inside the lower mold; A driving mechanism, which is arranged inside the main body; Among them, the driving mechanism includes a first gear rotatably connected inside the main body. A support rod is fixedly installed inside the main body. A slider is slidably connected to the surface of the support rod. A sliding ring is arranged at the top of the first gear, and the bottom end of the slider is fixedly connected to the sliding ring. A convex block located inside the sliding ring is fixedly installed at the top of the first gear. A cylinder is fixedly installed inside the main body, and a rack meshing with the first gear is fixedly installed on the output shaft of the cylinder; A plugging mechanism is arranged inside the lower mold.

[0005] Preferably, the cutting assembly includes an extrusion block arranged inside the main body. The main body and the extrusion block are elastically connected by a first elastic member. A trimming tool located inside the lower mold is fixedly installed at the top of the extrusion block.

[0006] Preferably, the plugging mechanism includes a plugging plate slidably connected inside the lower mold. A fixed shell is fixedly installed inside the main body. A second gear is rotatably connected inside the fixed shell. A lead screw located inside the plugging plate is fixedly installed on one side of the second gear, and the lead screw is threadedly connected to the plugging plate. A toothed plate is slidably connected inside the fixed shell. Connecting plates are fixedly installed at both ends of the toothed plate. The connecting plates and the fixed shell are elastically connected by a second elastic member. An extrusion rod located inside the fixed shell is fixedly installed on the outer surface of the lower mold.

[0007] Preferably, limiting rods are fixedly installed on the outer surface of the lower mold. Every two limiting rods form a group and are both located inside the plugging plate. The limiting rods are square in design and have a relatively smooth surface.

[0008] Preferably, a limiting ring located on the surface of the lead screw is rotatably connected inside the fixed shell, and the limiting ring is fixedly connected to the lead screw. The surface of the limiting ring is in contact with the inner wall of the fixed shell.

[0009] Preferably, the opposite sides of the slider and the extrusion block are both beveled, and the two bevels are parallel to each other. The surface of the convex block is smooth, and the surface of the convex block is in contact with the inner wall of the sliding ring.

[0010] Preferably, square grooves are formed on the surfaces of the main body and the lower mold, and the extrusion rod can slide inside the square grooves.

[0011] Preferably, the connecting plates are square in design, and the surfaces of the connecting plates are in complete contact with the inner wall of the fixed shell.

[0012] Preferably, a telescopic rod is arranged inside the first elastic member, and every two first elastic members form a group and are respectively on both sides of the extrusion block.

[0013] The diffusion plate extrusion molding process is as follows: S1: First, pour the raw materials into the interior of the lower mold for the diffusion plate raw materials. Then, heat the upper mold and the lower mold simultaneously. After heating to the specified temperature, drive the upper mold to descend, thereby extruding the raw materials inside the lower mold to form a diffusion plate. S2: After extrusion molding, the air cylinder can be driven to make its output shaft push the rack to move. The rack will drive the first gear and the convex block to rotate. The convex block will push the sliding ring to move, and the sliding ring will drive the slider to slide. The slider will contact the surface of the extrusion block, and the slider will squeeze and push the extrusion block and the trimming tool upward. The trimming tool can remove the burrs around the diffusion plate. S3: When the trimming tool moves upward, it will drive the extrusion rod to move upward and squeeze the air inside the fixed shell. The flowing air will push the connecting plate and the toothed plate to move. The toothed plate will drive the second gear and the lead screw to rotate. The blocking plate will move on the surface of the lead screw. Then, the lead screw will cancel the blocking of the trimming tool, ensuring that the trimming tool can smoothly remove the burrs of the diffusion plate. S31: When the first elastic member pulls the trimming tool and the extrusion rod to reset, the compressed second elastic member will push the toothed plate and the connecting plate to reset. The toothed plate will drive the second gear and the lead screw to rotate in the reverse direction, and the blocking plate will continue to block the fixed groove for accommodating the trimming tool, ensuring the integrity of the diffusion plate and preventing the raw materials from entering the fixed groove during the hot pressing process. S4: After the diffusion plate is cooled and formed, the upper mold can be driven to move upward again. Then, the removed burrs and the diffusion plate can be taken out, and the diffusion plate forming work can continue. In summary, the present application includes at least one of the following beneficial technical effects: 1. By driving the air cylinder to make its output shaft push the rack to move, the rack will drive the first gear and the convex block to rotate. The convex block will push the sliding ring to move, and the sliding ring will drive the slider to slide. The slider will contact the surface of the extrusion block, and the slider will squeeze and push the extrusion block and the trimming tool upward. Finally, by driving the air cylinder, the trimming component will move upward to accurately reach the edge position of the diffusion plate, quickly and neatly remove the burrs around the diffusion plate that affect the quality, thereby effectively improving the quality of the subsequent diffusion plate extrusion process. 2. When the trimming tool resets, it will pull the extrusion rod to reset. At the same time, the compressed second elastic member will push the toothed plate and the connecting plate to reset. The toothed plate will drive the second gear and the lead screw to rotate in the reverse direction, and the blocking plate will continue to block the fixed groove for accommodating the trimming tool. Moreover, the top end of the blocking plate is at the same horizontal line as the bottom end inside the lower mold, thereby ensuring the integrity of the diffusion plate and preventing the raw materials from entering the fixed groove during the hot pressing process. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present application; Figure 2It is a schematic cross-sectional view of the main body of Embodiment 1 of the present application; Figure 3 It is a schematic internal top view of the main body of Embodiment 1 of the present application; Figure 4 It is a schematic cross-sectional view of the lower mold of Embodiment 1 of the present application; Figure 5 It is a schematic view showing the cutting component of Embodiment 1 of the present application; Figure 6 It is a schematic view showing the driving mechanism of Embodiment 1 of the present application; Figure 7 It is a schematic view showing the plugging mechanism of Embodiment 1 of the present application; Figure 8 It is a schematic view showing the limiting ring of Embodiment 1 of the present application.

[0015] Explanation of reference numerals: 1, main body; 2, upper mold; 3, lower mold; 4, cutting component; 401, first elastic member; 402, extrusion block; 403, trimming cutter; 5, driving mechanism; 501, first gear; 502, support rod; 503, slider; 504, sliding ring; 505, convex block; 506, cylinder; 507, rack; 6, plugging mechanism; 601, plugging plate; 602, fixed housing; 603, second gear; 604, lead screw; 605, toothed plate; 606, connecting plate; 607, second elastic member; 608, extrusion rod; 7, limiting rod; 8, limiting ring. Detailed implementation manners

[0016] The following will be further described in detail with reference to the accompanying Figure 1 - accompanying Figure 8 drawings to make a further detailed description of the present application.

[0017] Embodiment 1: A diffusion plate extrusion forming device, referring to Figures 1 to 8 the drawings, includes a main body 1, an upper mold 2 and a lower mold 3, and further includes: A cutting component 4, which is arranged inside the lower mold 3; A driving mechanism 5, which is arranged inside the main body 1; Among them, the driving mechanism 5 includes a first gear 501 rotatably connected inside the main body 1, a support rod 502 fixedly installed inside the main body 1, a slider 503 slidably connected to the surface of the support rod 502, a sliding ring 504 arranged at the top of the first gear 501, and the bottom end of the slider 503 is fixedly connected to the sliding ring 504. A convex block 505 located inside the sliding ring 504 is fixedly installed at the top of the first gear 501, a cylinder 506 is fixedly installed inside the main body 1, and a rack 507 meshing with the first gear 501 is fixedly installed on the output shaft of the cylinder 506; A plugging mechanism 6, which is arranged inside the lower mold 3.

[0018] By adopting the above technical solution, the operator slowly pours the diffusion plate raw material into the lower mold 3, and then starts the heating devices of the upper mold 2 and the lower mold 3 at the same time to heat the two evenly. When the temperature reaches the preset specified value, the drive system starts to operate, so that the upper mold 2 descends smoothly and accurately squeezes the raw material inside the lower mold 3. Under the strong pressure, the raw material is gradually formed, and finally a diffusion plate that meets the requirements is formed. When the extrusion molding process is completed, the burr cutting stage begins. At this time, the driving cylinder 506, whose output shaft vigorously pushes the rack 507 to move. Since the rack 507 is tightly meshed with the gear 1 501, the moving rack 507 drives the gear 1 501 to start rotating, and the protrusion 505 on the gear 1 501 slides inside the sliding ring 504, generating thrust during the sliding process, pushing the sliding ring 504 to move, and the sliding ring 504 then drives the slider 503 to slide on the surface of the support rod 502, and the slider 503 pushes the cutting component 4 upward. When the cutting component 4 moves, it will link the blocking mechanism 6 to cancel the blocking of the driving mechanism 5, and then the cutting component 4 accurately cuts off the burrs generated during the hot pressing process of the diffuser plate, and finally drives the cutting component 4 to move upward by driving the cylinder 506, accurately reaching the edge of the diffuser plate, and quickly and neatly cuts off the burrs around the diffuser plate that affect the quality, thereby effectively improving the quality of the subsequent diffuser plate extrusion process.

[0019] Specifically, the cutting assembly 4 includes an extrusion block 402 disposed inside the main body 1 , the main body 1 and the extrusion block 402 are elastically connected via an elastic member 401 , and a trimming tool 403 located inside the lower mold 3 is fixedly mounted on the top of the extrusion block 402 .

[0020] By adopting the above technical solution and the design of the cutting component 4, when the slider 503 moves, it will precisely contact the surface of the extrusion block 402 according to the preset trajectory. As the slider 503 continues to advance, it will exert pressure on the extrusion block 402, thereby pushing the extrusion block 402 to slowly move upward. In this process, the elastic member 401 connected to the extrusion block 402 is subjected to the tensile force, gradually stretched and deformed, and elastic potential energy is stored. At the same time, the extrusion block 402 drives the trimming tool 403 to move upward synchronously inside the lower mold 3. The trimming tool 403 is like a precise scalpel. According to the set path, the burrs around the diffuser plate that affect the appearance and quality are smoothly cut off, ensuring that the diffuser plate finally obtained has a smooth edge and excellent quality.

[0021] Specifically, the plugging mechanism 6 includes a plugging plate 601 slidably connected to the inside of the lower mold 3. A fixed shell 602 is fixedly installed inside the main body 1. A second gear 603 is rotatably connected to the inside of the fixed shell 602. A lead screw 604 located inside the plugging plate 601 is fixedly installed on one side of the second gear 603, and the lead screw 604 is threadedly connected to the plugging plate 601. A toothed plate 605 is slidably connected to the inside of the fixed shell 602. Connecting plates 606 are fixedly installed at both ends of the toothed plate 605. The connecting plates 606 are elastically connected to the fixed shell 602 through a second elastic member 607. An extrusion rod 608 located inside the fixed shell 602 is fixedly installed on the outer surface of the lower mold 3.

[0022] By adopting the above technical solution, through the design of the plugging mechanism 6, when the trimming tool 403 moves upward, it will drive the extrusion rod 608 to move upward. During the upward movement of the extrusion rod 608, the air inside the fixed shell 602 will be squeezed. As the air inside the fixed shell 602 is compressed, the flowing air will push the connecting plate 606 to move, and the connecting plate 606 will drive the toothed plate 605 to move. Since the toothed plate 605 meshes with the second gear 603, the moving toothed plate 605 will drive the second gear 603 to rotate, and the moving toothed plate 605 will squeeze the second elastic member 607. Then the second gear 603 will drive the lead screw 604 to rotate. Since the lead screw 604 is threadedly connected to the plugging plate 601, the plugging plate 601 will move on the surface of the lead screw 604. Then the lead screw 604 will cancel the plugging of the trimming tool 403, and the trimming tool 403 will contact the periphery of the diffusion plate, and then trim the burrs around the diffusion plate; When the trimming tool 403 resets, it will pull the extrusion rod 608 to reset. At the same time of resetting, the compressed second elastic member 607 will push the toothed plate 605 and the connecting plate 606 to reset. The toothed plate 605 will drive the second gear 603 and the lead screw 604 to rotate in the reverse direction, and the plugging plate 601 will continue to plug the fixing groove for receiving the trimming tool 403, and the top end of the plugging plate 601 is on the same horizontal line as the bottom end inside the lower mold 3, so as to ensure the integrity of the diffusion plate and prevent the raw material from entering the fixing groove during the hot pressing process.

[0023] Specifically, a limiting rod 7 is fixedly installed on the outer surface of the lower mold 3. Every two limiting rods 7 are in a group and are both located inside the plugging plate 601. The limiting rod 7 is designed to be square and has a relatively smooth surface.

[0024] By adopting the above technical solution, through the design of the limiting rod 7, when the lead screw 604 rotates, the limiting rod 7 is used to limit the plugging plate 601, so that the plugging plate 601 can move stably. And every two limiting rods 7 are in a group, so that the plugging plate 601 can be supported.

[0025] Specifically, a limiting ring 8 located on the surface of the lead screw 604 is rotatably connected inside the fixed housing 602, and the limiting ring 8 is fixedly connected to the lead screw 604, and the surface of the limiting ring 8 is in contact with the inner wall of the fixed housing 602.

[0026] By adopting the above technical solution, through the design of the limiting ring 8, when the lead screw 604 rotates, it will drive the limiting ring 8 to rotate. Since the surface of the limiting ring 8 is in contact with the inner wall of the fixed housing 602, while limiting the lead screw 604, it can also ensure the sealing performance of the fixed housing 602, so that the flowing air can push the convex block 505 and the connecting plate 606 to move.

[0027] Specifically, the opposite sides of the slider 503 and the extrusion block 402 are both designed with inclined surfaces, and the two inclined surfaces are parallel to each other. The surface of the convex block 505 is designed to be smooth, and the surface of the convex block 505 is in contact with the inner wall of the sliding ring 504.

[0028] By adopting the above technical solution, through the design of the slider 503, since the opposite sides of the slider 503 and the extrusion block 402 are both designed with inclined surfaces, the resistance between the slider 503 and the extrusion block 402 is reduced, so that the slider 503 can smoothly push the extrusion block 402 upward.

[0029] Specifically, square grooves are provided on the surfaces of the main body 1 and the lower mold 3, and the extrusion rod 608 can slide inside the square grooves.

[0030] By adopting the above technical solution, through the design of the main body 1 and the lower mold 3, since square grooves are provided on the surfaces of the main body 1 and the lower mold 3, the sliding of the extrusion rod 608 will not be interfered, and the surface of the extrusion rod 608 is in contact with the inner wall of the square groove. Therefore, when the extrusion rod 608 moves, the extrusion rod 608 can be limited.

[0031] Specifically, the connecting plate 606 is square in design, and the surface of the connecting plate 606 is in complete contact with the inner wall of the fixed housing 602.

[0032] By adopting the above technical solution, through the design of the connecting plate 606, since the surface of the connecting plate 606 is in complete contact with the inner wall of the fixed housing 602, it is ensured that the flowing air can push the connecting plate 606 and the toothed plate 605 to move.

[0033] Specifically, a telescopic rod is arranged inside the first elastic member 401, and every two of the first elastic members 401 are on both sides of the extrusion block 402 as a group.

[0034] By adopting the above technical solution, through the design of the first elastic member 401, since a telescopic rod is arranged inside the first elastic member 401, when the first elastic member 401 stretches and resets, the telescopic rod can extend and contract, and then the telescopic rod can limit the first elastic member 401 to prevent the first elastic member 401 from deforming.

[0035] The extrusion molding process of the diffusion plate is as follows: S1: First, pour the raw material of the diffusion plate into the inside of the lower mold 3, and then heat the upper mold 2 and the lower mold 3 simultaneously. After heating to the specified temperature, drive the upper mold 2 to descend, so as to extrude the raw material inside the lower mold 3 to form a diffusion plate; S2: After extrusion molding, the air cylinder 506 can be driven to make its output shaft push the rack 507 to move. The rack 507 will drive the first gear 501 and the convex block 505 to rotate. The convex block 505 will push the sliding ring 504 to move, and the sliding ring 504 will drive the slider 503 to slide. The slider 503 will contact the surface of the extrusion block 402, and the slider 503 will extrude and push the extrusion block 402 and the trimming cutter 403 to move upward, and the trimming cutter 403 can cut off the burrs around the diffusion plate; S3: When the trimming cutter 403 moves upward, it will drive the extrusion rod 608 to move upward to extrude the air inside the fixed shell 602. The flowing air will push the connecting plate 606 and the toothed plate 605 to move. The toothed plate 605 will drive the second gear 603 and the lead screw 604 to rotate. The blocking plate 601 will move on the surface of the lead screw 604. Then, the lead screw 604 will cancel the blocking of the trimming cutter 403, ensuring that the trimming cutter 403 can smoothly cut off the burrs of the diffusion plate; S31: When the first elastic member 401 pulls the trimming cutter 403 and the extrusion rod 608 to reset, the compressed second elastic member 607 will push the toothed plate 605 and the connecting plate 606 to reset. The toothed plate 605 will drive the second gear 603 and the lead screw 604 to rotate in the reverse direction, and the blocking plate 601 will continue to block the fixed groove for receiving the trimming cutter 403, ensuring the integrity of the diffusion plate and preventing the raw material from entering the fixed groove during the hot pressing process; S4: After the diffusion plate is cooled and formed, the upper mold 2 can be driven to move upward again, and then the cut burrs and the diffusion plate can be taken out, and the diffusion plate forming work can continue.

[0036] The implementation principle of the embodiment of this application is as follows: First, the operator pours the raw material of the diffusion plate into the inside of the lower mold 3, and then heats the upper mold 2 and the lower mold 3 simultaneously. After heating to the specified temperature, drive the upper mold 2 to descend, so as to extrude the raw material inside the lower mold 3 to form a diffusion plate; After extrusion molding, the air cylinder 506 can be driven to make its output shaft push the rack 507 to move. The rack 507 will drive the first gear 501 and the convex block 505 to rotate. The convex block 505 will push the sliding ring 504 to move, and the sliding ring 504 will drive the slider 503 to slide. The slider 503 will contact the surface of the extrusion block 402, and the slider 503 will extrude and push the extrusion block 402 and the trimming cutter 403 to move upward, When the trimming tool 403 moves upward, the extrusion rod 608 will move upward to squeeze the air inside the fixed shell 602. The flowing air will push the connecting plate 606 to move, and the connecting plate 606 will drive the tooth plate 605 to move. The tooth plate 605 will drive the gear 2 603 and the screw rod 604 to rotate. The sealing plate 601 will move on the surface of the screw rod 604, and then the screw rod 604 will cancel the blockage of the trimming tool 403. Then the trimming tool 403 can cut off the burrs around the diffuser plate, and finally complete the operation process.

[0037] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. Diffusion plate extrusion forming device, comprising a main body (1), an upper mold (2) and a lower mold (3), characterized in that, It further includes: A cutting component (4) disposed inside the lower mold (3); A driving mechanism (5) disposed inside the main body (1); Wherein, the driving mechanism (5) includes a first gear (501) rotatably connected inside the main body (1), a support rod (502) fixedly installed inside the main body (1), a slider (503) slidably connected to the surface of the support rod (502), a sliding ring (504) disposed at the top of the first gear (501), and the bottom end of the slider (503) is fixedly connected to the sliding ring (504). A convex block (505) is fixedly installed at the top of the first gear (501) and is located inside the sliding ring (504). A cylinder (506) is fixedly installed inside the main body (1), and a rack (507) engaged with the first gear (501) is fixedly installed on the output shaft of the cylinder (506); A blocking mechanism (6) disposed inside the lower mold (3).

2. The diffusion plate extrusion molding device according to claim 1, characterized in that The cutting component (4) includes an extrusion block (402) disposed inside the main body (1), and the main body (1) and the extrusion block (402) are elastically connected by a first elastic member (401). A trimming cutter (403) located inside the lower mold (3) is fixedly installed at the top of the extrusion block (402).

3. The diffusion plate extrusion molding device according to claim 1, characterized in that, The blocking mechanism (6) includes a blocking plate (601) slidably connected inside the lower mold (3), a fixed shell (602) fixedly installed inside the main body (1), a second gear (603) rotatably connected inside the fixed shell (602), a lead screw (604) fixedly installed on one side of the second gear (603) and located inside the blocking plate (601), and the lead screw (604) is threadedly connected to the blocking plate (601). A toothed plate (605) is slidably connected inside the fixed shell (602), connecting plates (606) are fixedly installed at both ends of the toothed plate (605), and the connecting plates (606) and the fixed shell (602) are elastically connected by a second elastic member (607). An extrusion rod (608) located inside the fixed shell (602) is fixedly installed on the outer surface of the lower mold (3).

4. The extrusion molding device for a diffusion plate according to claim 1, wherein, A limiting rod (7) is fixedly installed on the outer surface of the lower mold (3). Every two limiting rods (7) form a group and are both located inside the blocking plate (601). The limiting rod (7) is square in design and has a relatively smooth surface.

5. The diffusion plate extrusion forming device according to claim 3, characterized in that, A limiting ring (8) located on the surface of the lead screw (604) is rotatably connected inside the fixed shell (602), and the limiting ring (8) is fixedly connected to the lead screw (604). The surface of the limiting ring (8) is in contact with the inner wall of the fixed shell (602).

6. The extrusion forming device for a diffusion plate according to claim 1, wherein, The opposite sides of the slider (503) and the extrusion block (402) are both beveled, and the two bevels are parallel to each other. The surface of the convex block (505) is smooth, and the surface of the convex block (505) is in contact with the inner wall of the sliding ring (504).

7. The extrusion forming device for a diffusion plate according to claim 1, characterized in that, Square grooves are formed on the surfaces of the main body (1) and the lower mold (3), and the extrusion rod (608) can slide inside the square grooves.

8. The diffusion plate extrusion molding device according to claim 3, characterized in that, The connecting plate (606) is designed in a square shape, and the surface of the connecting plate (606) is completely attached to the inner wall of the fixed shell (602).

9. The diffusion plate extrusion forming device according to claim 2, characterized in that, A telescopic rod is arranged inside the first elastic member (401), and every two of the first elastic members (401) are on both sides of the extrusion block (402).

10. The extrusion forming process of the diffusion plate is applied to the diffusion plate extrusion forming device according to any one of claims 1-9, and is characterized in that, The forming process is as follows: S1: First, pour the raw material of the diffusion plate into the inner part of the lower mold (3), and then heat the upper mold (2) and the lower mold (3) simultaneously. After heating to the specified temperature, drive the upper mold (2) to descend, so as to extrude the raw material inside the lower mold (3) to form the diffusion plate; S2: After extrusion molding, the air cylinder (506) can be driven to make its output shaft push the rack (507) to move. The rack (507) will drive the first gear (501) and the convex block (505) to rotate. The convex block (505) will push the sliding ring (504) to move, and the sliding ring (504) will drive the slider (503) to slide. The slider (503) will contact the surface of the extrusion block (402), and the slider (503) will squeeze and push the extrusion block (402) and the trimming cutter (403) to move upward, and the trimming cutter (403) can cut off the burrs around the diffusion plate; S3: When the trimming cutter (403) moves upward, it will drive the extrusion rod (608) to move upward to squeeze the air inside the fixed shell (602). The flowing air will push the connecting plate (606) and the toothed plate (605) to move. The toothed plate (605) will drive the second gear (603) and the lead screw (604) to rotate. The sealing plate (601) will move on the surface of the lead screw (604). Then the lead screw (604) will cancel the blocking of the trimming cutter (403), ensuring that the trimming cutter (403) can smoothly cut off the burrs of the diffusion plate; S31: When the first elastic member (401) pulls the trimming cutter (403) and the extrusion rod (608) to reset, the compressed second elastic member (607) will push the toothed plate (605) and the connecting plate (606) to reset. The toothed plate (605) will drive the second gear (603) and the lead screw (604) to rotate in the reverse direction, and the sealing plate (601) will continue to block the fixed groove for receiving the trimming cutter (403), ensuring the integrity of the diffusion plate and preventing the raw material from entering the fixed groove during the hot pressing process; S4: After the diffusion plate is cooled and formed, the upper mold (2) can be driven to move upward again, and then the cut-off burrs and the diffusion plate can be taken out, and the diffusion plate forming work can continue.

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