An automobile high-strength hot forming component production device and process

Abstract

The application discloses a kind of automobile high-strength thermoforming component production device and process, it is related to automobile accessory processing technical field, including base, the inside four corners of base are all fixedly installed with lifting oil cylinder, the output end of lifting oil cylinder is fixedly connected with top seat, the inside installation of base has support device.Through setting servo motor, rotating rod and locating bearing etc., after stamping material by lower die and upper die, rotating plate can be rotated, lower die can be overturned, can let the broken material impurities etc. inside the surface of lower die and its cavity be poured out, improve the quality of material forming, by setting slide and elastic plate when rotating rod overturns half circle, by the vibration of vibration motor, material formed on the surface of lower die can be quickly demoulded, impurities broken material can also be cleaned more thoroughly, and by roller conveyor, material and impurities can be separated, and by collecting box, impurities are collected.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, specifically to a production apparatus and process for high-strength thermoformed automotive parts. Background Technology

[0002] Using advanced high-strength steel sheets to form body parts can significantly improve passenger vehicle safety, achieve lightweight body construction, and reduce fuel consumption. Traditional cold stamping for high-strength steel forming not only makes body parts prone to cracking during the forming process but also to springback, affecting subsequent body assembly. For high-strength steel with strengths exceeding 1000 MPa, traditional cold stamping processes are often insufficient. Therefore, hot stamping technology has emerged to overcome the limitations of forming ultra-high-strength steel sheets at room temperature. Hot stamping technology is an effective way to obtain ultra-high-strength stamped parts. The principle of this technology is to heat the high-strength sheet to the austenitic temperature range, quickly move it to a die, and stamp it rapidly. After holding the pressure for a period of time, the part is quenched and cooled. Finally, the microstructure of the formed part changes from austenite to martensite, thus obtaining a formed part with a strength of over 1500 MPa.

[0003] However, during the hot forming process, the high temperature and pressure of existing thermoforming stamping dies cause die wear. Furthermore, since the lower die cavity faces upwards, debris easily accumulates inside the cavity when stamping the material. The debris generated during stamping and the debris generated by die wear accumulate inside the cavity, affecting the stamped product and ultimately causing local deformation and affecting product precision. Most existing thermoforming stamping dies do not have a lower die cleaning function. Although some use airflow to clean the surface, the debris flies around and is difficult to clean the deep parts of the cavity, so the disadvantages outweigh the advantages.

[0004] Therefore, those skilled in the art provide a production apparatus and process for high-strength thermoformed automotive parts to solve the problems mentioned in the background art. Summary of the Invention

[0005] Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a production apparatus and process for high-strength thermoforming automotive parts. It has the advantages of thoroughly cleaning impurities from the surface of the lower mold and the inside of the cavity, thereby improving the material forming quality. It solves the problem of poor accuracy in localized deformation of the material during stamping due to the inability to thoroughly clean impurities on the lower mold.

[0007] Technical solution

[0008] To achieve the aforementioned goal of thoroughly cleaning impurities from the surface of the lower mold and the interior of the cavity to improve the quality of material molding, this invention provides the following technical solution: A production device for high-strength thermoformed automotive parts, comprising a base, with lifting hydraulic cylinders fixedly installed at each of the four corners of the base. A top seat is fixedly connected to the output end of each lifting hydraulic cylinder, and an upper mold is fixedly connected to the bottom of the top seat. A material drop groove is provided inside the base, and a rotating plate is movably installed inside the material drop groove. A lower mold is fixedly connected to the top of the rotating plate, and a vibration motor is fixedly installed on the surface of the rotating plate. Rotating rods are fixedly connected to the center of both sides of the rotating plate, one of which... The rotating rod is fixedly connected to a servo motor via a coupling. The outer surface of the servo motor is fixedly installed inside the base. A positioning bearing is fixedly installed inside the base. A fixing box is fixedly connected inside the positioning bearing. A sliding plate is slidably connected inside the fixing box. An elastic plate is movably installed inside the fixing box. A locking bar is fixedly connected to the end of the rotating rod away from the sliding plate. A positioning block is slidably connected inside the base. A positioning groove is opened inside the positioning block. A positioning hydraulic cylinder is fixedly installed on the outer surface of the base. The output end of the positioning hydraulic cylinder is fixedly connected to the center of the side of the positioning block. A support device is installed inside the base.

[0009] Preferably, the support device includes equidistant circular grooves inside the base, an elastic block is movably installed inside the circular groove, a positioning rod is slidably connected inside the circular groove, positioning holes are equidistantly opened on both sides of the rotating plate, a sealing cavity is opened inside the base, two abutments are slidably connected inside the sealing cavity, two limiting rings are fixedly connected inside the sealing cavity, a communicating pipe communicating with the inside of the sealing cavity is fixedly connected inside the base, an adjustment cavity is opened inside the base, an electric telescopic rod is fixedly installed on the outer surface of the base, a sealing adjustment plate is fixedly connected to the output end of the electric telescopic rod, and venting grooves communicating with the inside of the elastic block are equidistantly opened on the outer surface of the base.

[0010] Preferably, the base has a discharge chute on its side, a roller conveyor is fixedly installed inside the discharge chute, a collection box is slidably connected inside the base, the output end of the roller conveyor extends to the outside of the base, and the input end of the collection box extends to the outside of the base.

[0011] Preferably, the abutment includes a sealing ring that is slidably connected inside the sealing cavity, a abutment is fixedly connected to the center of the surface of the sealing ring, an arc-shaped protrusion is fixedly connected to the end of the abutment away from the sealing movable plate, and a sealing ring is fixedly installed on the outer surface of the sealing movable plate.

[0012] Preferably, the positioning rod includes a round rod that fits onto the surface of the elastic block, the inside of the round rod has a groove, the outer surface of the round rod is fixedly connected to a limiting block, and the inside of the round groove has a limiting groove that matches the limiting block.

[0013] Preferably, the elastic plate is a silicone block, and the end of the rotating rod away from the positioning bearing extends into the material discharge chute.

[0014] Preferably, the locking bar and the positioning groove are both hexagonal, the positioning block is square, and the outer diameter of the positioning groove is larger than the inner diameter.

[0015] Preferably, a sealing ring is fixedly installed on the outer surface of the sealing adjustment plate, and the circular groove is a rubber block.

[0016] Preferably, the groove is trapezoidal, the surface of the arc-shaped protrusion abuts against the inner wall of the groove, there are two limiting rings, the limiting rings are annular, the interior of the adjustment cavity near the electric telescopic rod is connected to the exterior of the base through a venting groove, and the outer diameter of the positioning hole is larger than the inner diameter.

[0017] The manufacturing process for high-strength thermoformed automotive parts, applied to the aforementioned high-strength thermoformed automotive parts manufacturing apparatus, includes the following steps:

[0018] S1. During operation, the robotic arm places the heated material on the surface of the lower mold, and then drives the top seat to slide downward through the lifting hydraulic cylinder. The upper and lower molds then stamp and shape the material.

[0019] S2. By activating the lifting hydraulic cylinder, the top seat drives the upper mold to slide away from the lower mold. At this time, by activating the positioning hydraulic cylinder, the positioning hydraulic cylinder drives the positioning block to slide, causing the locking bar to disengage from the positioning groove.

[0020] S3. Then, by starting the electric telescopic rod, the sealing adjustment plate is slid to the right. At this time, the inside of the sealing cavity is under high pressure, and the two abutments are slid away from the limit ring. At this time, the surface of the arc-shaped protrusion is against the inner wall of the groove, and through friction, the round bar is slid away from the rotating plate.

[0021] S4. After the round bar is disengaged from the positioning hole, the servo motor is started. The servo motor drives the rotating rod and the rotating plate to rotate, so that the top of the lower mold faces the inside of the material dropping groove. At this time, the surface of the rotating rod is tightly attached to the surface of the elastic plate.

[0022] S5. Then, by starting the vibration motor, the material and debris on the surface of the lower mold can fall onto the roller surface of the roller conveyor, and the debris will pass through the roller conveyor and fall into the collection box for collection. The formed material is finally transported out from the discharge chute by the roller conveyor.

[0023] Beneficial effects

[0024] Compared with the prior art, the present invention provides a production apparatus and process for high-strength thermoformed automotive parts, which has the following beneficial effects:

[0025] 1. The production equipment and process for high-strength thermoforming parts of automobiles, by setting up servo motors, rotating rods and positioning bearings, allows the rotating plate to be rotated and the lower mold to be flipped after the material is stamped by the lower and upper molds. This allows the scraps and impurities on the surface of the lower mold and inside its cavity to be poured out, thus improving the quality of material forming.

[0026] 2. The production equipment and process for high-strength thermoformed automotive parts, by setting up a sliding plate and an elastic plate, when the rotating rod rotates half a turn, the vibration of the vibrating motor can quickly demold the material formed on the surface of the lower mold, and at the same time, impurities and debris can be cleaned more thoroughly. The roller conveyor can separate the material and impurities, and the collection box can collect the impurities.

[0027] 3. The production equipment and process for high-strength thermoforming parts of automobiles can position the rotation angle of the rotating plate by setting up a clamping bar, positioning block and positioning hydraulic cylinder. By setting up a support device, the rotating plate can be supported after it is flipped, which reduces the longitudinal pressure on the positioning bearing, extends the service life of the positioning bearing, and makes the stamping of materials more secure and stable. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a production apparatus for high-strength thermoformed automotive parts proposed in this invention;

[0029] Figure 2 This is a cross-sectional view of a production apparatus for high-strength thermoformed automotive parts proposed in this invention;

[0030] Figure 3 This is a schematic diagram of the connection between the rotating rod and the positioning bearing in a production device for high-strength thermoformed automotive parts proposed in this invention.

[0031] Figure 4 This is a schematic diagram of the structure of the clamping bar and positioning block in a production device for high-strength thermoformed automotive parts proposed in this invention;

[0032] Figure 5 This is a schematic diagram of the structure of the elastic plate in a production device for high-strength thermoformed automotive parts proposed in this invention;

[0033] Figure 6 This is a schematic diagram of the support device in a production apparatus for high-strength thermoformed automotive parts proposed in this invention.

[0034] Figure 7 This is a schematic diagram of the structure of the abutment in a production device for high-strength thermoformed automotive parts proposed in this invention;

[0035] Figure 8 This is a schematic diagram of the positioning bar in a production device for high-strength thermoformed automotive parts proposed in this invention.

[0036] In the diagram: 1. Base; 2. Lifting hydraulic cylinder; 3. Top seat; 4. Upper mold; 41. Lower mold; 5. Material drop chute; 6. Rotating plate; 61. Vibrating motor; 7. Rotating rod; 71. Servo motor; 8. Positioning bearing; 9. Fixing box; 10. Slide plate; 11. Elastic plate; 12. Clamping bar; 13. Positioning block; 14. Positioning groove; 15. Positioning hydraulic cylinder; 16. Discharge chute; 17. Roller conveyor; 18. Collection box; 19. Support device; 191. Circular trough ; 192. Elastic block; 193. Positioning rod; 194. Positioning hole; 195. Sealing cavity; 196. Abutment rod; 197. Limiting ring; 198. Connecting pipe; 199. Adjusting cavity; 1910. Electric telescopic rod; 1911. Sealing adjustment plate; 1912. Venting groove; 1961. Abutment rod; 1962. Sealing movable plate; 1963. Sealing ring; 1964. Arc-shaped protrusion; 1931. Round rod; 1932. Groove; 1933. Limiting block. Detailed Implementation

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below. 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.

[0038] Please see Figure 1-8A production apparatus for high-strength thermoformed automotive parts includes a base 1. Lifting hydraulic cylinders 2 are fixedly installed at each of the four corners of the base 1. A top seat 3 is fixedly connected to the output end of each lifting hydraulic cylinder 2. An upper mold 4 is fixedly connected to the bottom of the top seat 3. A material drop chute 5 is opened inside the base 1. A rotating plate 6 is movably installed inside the material drop chute 5. A lower mold 41 is fixedly connected to the top of the rotating plate 6. A vibration motor 61 is fixedly installed on the surface of the rotating plate 6. Rotating rods 7 are fixedly connected to the center of both sides of the rotating plate 6. One of the rotating rods 7 is fixedly connected to a servo motor 71 via a coupling. The surface is fixedly installed inside the base 1. The positioning bearing 8 is fixedly installed inside the base 1. The end of the rotating rod 7 away from the positioning bearing 8 extends into the material drop chute 5. The positioning bearing 8 is fixedly connected to the fixing box 9. The fixing box 9 is slidably connected to the sliding plate 10. The fixing box 9 is movably installed with an elastic plate 11, which is a silicone block. When the servo motor 71 drives the rotating rod 7 to rotate 180 degrees, the vibration motor 61 can be started to drive the lower mold 41 to vibrate, which can pour out the broken materials and impurities on the surface of the lower mold 41 and inside its cavity, thus improving the quality of material molding.

[0039] A locking bar 12 is fixedly connected to the end of the rotating rod 7 away from the slide plate 10. A positioning block 13 is slidably connected inside the base 1. The positioning block 13 is square and has a positioning groove 14 inside. The outer diameter of the positioning groove 14 is larger than the inner diameter. Both the locking bar 12 and the positioning groove 14 are hexagonal. A positioning hydraulic cylinder 15 is fixedly installed on the outer surface of the base 1. The output end of the positioning hydraulic cylinder 15 is fixedly connected to the center of the side of the positioning block 13. By sliding the positioning block 13 and engaging with the locking bar 12, the rotation angle of the rotating rod 7 can be limited.

[0040] A support device 19 is installed inside the base 1. The support device 19 includes circular grooves 191 equidistantly formed inside the base 1. The circular grooves 191 are rubber blocks. An elastic block 192 is movably installed inside the circular grooves 191. A positioning rod 193 is slidably connected inside the circular grooves 191. The positioning rod 193 includes a circular rod 1931 that fits against the surface of the elastic block 192. A groove 1932 is formed inside the circular rod 1931. The groove 1932 is trapezoidal. A limit block 1933 is fixedly connected to the outer surface of the circular rod 1931. The circular grooves 191 have... A limiting groove matching the limiting block 1933 is provided. Positioning holes 194 are equidistantly opened on both sides of the rotating plate 6. The outer diameter of the positioning holes 194 is larger than the inner diameter. A sealing cavity 195 is provided inside the base 1. Two abutments 196 are slidably connected inside the sealing cavity 195. Each abutment 196 includes a sealing ring 1963 slidably connected inside the sealing cavity 195. A stop rod 1961 is fixedly connected to the center of the surface of the sealing ring 1963. An arc-shaped protrusion 1 is fixedly connected to the end of the stop rod 1961 away from the sealing movable plate 1962. 964, the surface of the arc-shaped protrusion 1964 abuts against the inner wall of the groove 1932, a sealing ring 1963 is fixedly installed on the outer surface of the sealing movable plate 1962, two limiting rings 197 are fixedly connected inside the sealing cavity 195, the number of limiting rings 197 is two, a connecting pipe 198 connected to the inside of the sealing cavity 195 is fixedly connected inside the base 1, an adjustment cavity 199 is opened inside the base 1, an electric telescopic rod 1910 is fixedly installed on the outer surface of the base 1, and a sealing ring is fixedly connected to the output end of the electric telescopic rod 1910. The adjusting plate 1911 has a sealing ring fixedly installed on its outer surface. The outer surface of the base 1 is provided with venting grooves 1912 that communicate with the interior of the elastic block 192 at equal intervals. The interior of the adjusting cavity 199 near the electric telescopic rod 1910 is connected to the exterior of the base 1 through the venting grooves 1912. By setting the support device 19, the rotating plate 6 can be supported after it is flipped, which reduces the longitudinal pressure on the positioning bearing 8, extends the service life of the positioning bearing 8, and makes the material pressing more secure and stable.

[0041] A discharge chute 16 is provided on the side of the base 1. A roller conveyor 17 is fixedly installed inside the discharge chute 5. The output end of the roller conveyor 17 extends to the outside of the base 1. A collection box 18 is slidably connected inside the base 1. The input end of the collection box 18 extends to the outside of the base 1. Impurities can be collected by setting up the collection box 18.

[0042] The manufacturing process for high-strength thermoformed automotive parts, applied to the aforementioned high-strength thermoformed automotive parts manufacturing apparatus, includes the following steps:

[0043] S1. During operation, the robotic arm places the heated material on the surface of the lower mold 41, and then drives the top seat 3 to slide downward through the lifting hydraulic cylinder 2. The upper mold 4 and the lower mold 41 stamp and shape the material.

[0044] S2. By activating the lifting hydraulic cylinder 2, the top seat 3 drives the upper mold 4 to slide away from the lower mold 41. At this time, by activating the positioning hydraulic cylinder 15, the positioning hydraulic cylinder 15 drives the positioning block 13 to slide, so that the locking bar 12 is disengaged from the positioning groove 14.

[0045] S3. Then, by starting the electric telescopic rod 1910, the sealing adjustment plate 1911 is slid to the right. At this time, the sealing cavity 195 is under high pressure and drives the two abutments 196 to slide away from the limiting ring 197. At this time, the surface of the arc-shaped protrusion 1964 abuts against the inner wall of the groove 1932, and through friction, drives the round rod 1931 to slide away from the rotating plate 6.

[0046] S4. After the round bar 1931 is disengaged from the positioning hole 194, the servo motor 71 is started. The servo motor 71 drives the rotating rod 7 and the rotating plate 6 to rotate, so that the top of the lower mold 41 faces the inside of the material dropping groove 5. At this time, the surface of the rotating rod 7 is tightly attached to the surface of the elastic plate 11.

[0047] S5. Then, by starting the vibration motor 61, the material and debris on the surface of the lower mold 41 can fall onto the roller surface of the roller conveyor 17, and the debris will pass through the roller conveyor 17 and fall into the collection box 18 for collection. The formed material is finally transported out from the discharge chute 16 through the roller conveyor 17.

[0048] After the material discharge is completed, when the mold needs to be used again, the servo motor 71 drives the rotating rod 7 to rotate, causing the lower mold 41 to flip back to its original position. The positioning hydraulic cylinder 15 is activated, causing the positioning block 13 to slide towards the rotating rod 7. When the locking bar 12 is inserted into the positioning groove 14, the rotating plate 6 cannot rotate. Then, the electric telescopic rod 1910 is activated, causing the sealing adjustment plate 1911 to slide towards the venting groove 1912, so that the sealing cavity 195 is in a negative pressure state. At this time, the abutment rod 196 slides towards the center of the sealing cavity 195. When the limiting ring 197 is not in contact with the positioning rod 193, the elasticity of the elastic block 192 causes the positioning rod 193 to slide towards the rotating plate 6. When the round rod 1931 is inserted into the positioning hole 194, the next material can be stamped.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production apparatus for high-strength thermoformed automotive parts, comprising a base (1), characterized in that: Lifting hydraulic cylinders (2) are fixedly installed at the four corners of the base (1). The output end of the lifting hydraulic cylinder (2) is fixedly connected to a top seat (3). The bottom of the top seat (3) is fixedly connected to an upper mold (4). A material drop trough (5) is opened inside the base (1). A rotating plate (6) is movably installed inside the material drop trough (5). A lower mold (41) is fixedly connected to the top of the rotating plate (6). A vibration motor (61) is fixedly installed on the surface of the rotating plate (6). A rotating rod (7) is fixedly connected to the center of both sides of the rotating plate (6). One of the rotating rods (7) is fixedly connected to a servo motor (71) through a coupling. The outer surface of the servo motor (71) is fixedly installed inside the base (1). A positioning bearing (8) is fixedly installed inside the base (1). A fixed box (9) is fixedly connected inside the positioning bearing (8). A sliding plate (10) is slidably connected inside the fixed box (9). An elastic plate (11) is movably installed inside the fixed box (9). A locking bar (12) is fixedly connected to the end of the rotating rod (7) away from the sliding plate (10). A positioning block (13) is slidably connected inside the base (1). A positioning groove (14) is opened inside the positioning block (13). A positioning hydraulic cylinder (15) is fixedly installed on the outer surface of the base (1). The output end of the positioning hydraulic cylinder (15) is fixedly connected to the center of the side of the positioning block (13). A support device (19) is installed inside the base (1). The support device (19) includes circular grooves (191) equidistantly spaced inside the base (1), with elastic blocks (192) movably installed inside the circular grooves (191), and positioning rods (193) slidably connected inside the circular grooves (191). Positioning holes (194) are equidistantly spaced on both sides of the rotating plate (6). A sealing cavity (195) is formed inside the base (1), with two abutments (196) slidably connected inside the sealing cavity (195). Two limiting rings (197) are fixedly connected inside the sealing cavity (195). A connecting pipe (198) communicating with the inside of the sealing cavity (195) is fixedly connected inside the base (1). An adjustment cavity (199) is formed inside the base (1). The base (1) is fixedly mounted with an electric telescopic rod (1910) on its outer surface. The output end of the electric telescopic rod (1910) is fixedly connected with a sealing adjustment plate (1911). The outer surface of the base (1) is provided with venting grooves (1912) that communicate with the interior of the elastic block (192) at equal intervals. The abutment (196) includes a sealing ring (1963) that is slidably connected to the inside of the sealing cavity (195). A abutment (1961) is fixedly connected to the center of the surface of the sealing ring (1963). An arc-shaped protrusion (1964) is fixedly connected to the end of the abutment (1961) away from the sealing movable plate (1962). The sealing ring (1963) is fixedly mounted on the outer surface of the sealing movable plate (1962). The positioning rod (193) includes a round rod (1931) that fits against the surface of the elastic block (192). The round rod (1931) has a groove (1932) inside. The outer surface of the round rod (1931) is fixedly connected to a limiting block (1933). The round groove (191) has a limiting groove that matches the limiting block (1933) inside.

2. The production apparatus for high-strength thermoformed automotive parts according to claim 1, characterized in that: The base (1) has a discharge chute (16) on its side. A roller conveyor (17) is fixedly installed inside the discharge chute (5). A collection box (18) is slidably connected inside the base (1). The output end of the roller conveyor (17) extends to the outside of the base (1), and the input end of the collection box (18) extends to the outside of the base (1).

3. The production apparatus for high-strength thermoformed automotive parts according to claim 1, characterized in that: The elastic plate (11) is a silicone block, and the end of the rotating rod (7) away from the positioning bearing (8) extends into the interior of the material drop trough (5).

4. The production apparatus for high-strength thermoformed automotive parts according to claim 1, characterized in that: The locking bar (12) and the positioning groove (14) are both hexagonal, the positioning block (13) is square, and the outer diameter of the positioning groove (14) is larger than the inner diameter.

5. The production apparatus for high-strength thermoformed automotive parts according to claim 1, characterized in that: A sealing ring is fixedly installed on the outer surface of the sealing adjustment plate (1911), and the circular groove (191) is a rubber block.

6. The production apparatus for high-strength thermoformed automotive parts according to claim 1, characterized in that: The groove (1932) is trapezoidal, and the surface of the arc-shaped protrusion (1964) abuts against the inner wall of the groove (1932). There are two limiting rings (197), and the limiting rings (197) are annular. The adjustment cavity (199) is close to the interior of the electric telescopic rod (1910) and is connected to the exterior of the base (1) through the vent groove (1912). The outer diameter of the positioning hole (194) is larger than the inner diameter.

7. A manufacturing process for high-strength thermoformed automotive parts, applied to the manufacturing apparatus for high-strength thermoformed automotive parts according to any one of claims 1-6, characterized in that, Includes the following steps: S1. During operation, the robotic arm places the heated material on the surface of the lower mold (41), and then drives the top seat (3) to slide downward through the lifting hydraulic cylinder (2). The upper mold (4) and the lower mold (41) stamp the material. S2. By starting the lifting hydraulic cylinder (2), the top seat (3) drives the upper mold (4) to slide away from the lower mold (41). At this time, by starting the positioning hydraulic cylinder (15), the positioning hydraulic cylinder (15) drives the positioning block (13) to slide, so that the clamping bar (12) is disengaged from the positioning groove (14). S3. Then, by starting the electric telescopic rod (1910), the sealing adjustment plate (1911) is driven to slide to the right. At this time, the sealing cavity (195) is under high pressure and drives the two abutments (196) to slide away from the limiting ring (197). At this time, the surface of the arc-shaped protrusion (1964) abuts against the inner wall of the groove (1932) and, through friction, drives the round rod (1931) to slide away from the rotating plate (6). S4. After the round bar (1931) is removed from the positioning hole (194), the servo motor (71) is started. The servo motor (71) drives the rotating rod (7) and the rotating plate (6) to rotate, so that the top of the lower mold (41) faces the inside of the material drop groove (5). At this time, the surface of the rotating rod (7) is tightly attached to the surface of the elastic plate (11). S5. Then, by starting the vibration motor (61), the material and debris on the surface of the lower mold (41) can fall onto the roller surface of the roller conveyor (17), and the debris will pass through the roller conveyor (17) and fall into the collection box (18) for collection. The formed material is finally transported out from the discharge chute (16) through the roller conveyor (17).

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