A riser forming device and forming method

Abstract

This invention relates to the field of riser processing technology and discloses a riser forming equipment and method, including a worktable. The upper surface of the worktable has an annular notch, and an annular plate is rotatably connected within the annular notch. A drive assembly is provided between the annular plate and the worktable, enabling the annular plate to rotate axially, with each rotation causing the annular plate to rotate 90 degrees. Four mold assemblies for shaping are arranged in a circular array on the upper surface of the annular plate. The upper surface of the worktable is sequentially arranged clockwise as a feeding station, a pressing station, a demolding station, and an inspection station. This invention integrates a quantitative feeding assembly, a multi-stage compaction assembly, and a demolding system onto the annular plate, forming the feeding station, pressing station, demolding station, and inspection station, thereby achieving rapid riser forming operations with a high degree of equipment integration and automation.

Description

Technical Field

[0001] This invention relates to the field of riser processing technology, specifically to a riser forming equipment and forming method. Background Technology

[0002] In a casting mold, the cavity of the riser is a cavity that stores liquid metal. It supplies metal during casting formation and has the functions of preventing shrinkage cavities, porosity, venting, and slag accumulation. The main function of the riser is to feed the metal.

[0003] It provides liquid metal supply during the cooling and solidification process of molten metal, compensating for the volume loss caused by solidification shrinkage of the casting body, thereby preventing defects such as shrinkage cavities and porosity inside the casting.

[0004] A search revealed Chinese patent CN218252776U, which discloses a molded riser demolding device. This device enables automatic material handling, which is more efficient and produces better results than manual handling, preventing deformation of the riser due to uneven lifting. However, it still has the following problems:

[0005] 1. During the demolding process, the mold is directly removed upwards. During this process, the inner wall of the mold is prone to sticking to the raw material. The mold and the riser are also easily lifted together, making it impossible to completely separate the mold and the riser. Therefore, how to solve the problem of stable separation between the mold and the riser is an urgent issue that needs to be addressed.

[0006] 2. Currently, when the material sand inside the mold is being compacted, the material inside the mold cavity formed by the inner and outer molds is not easily compacted completely, which affects the molding quality of the riser.

[0007] 3. The riser forming process involves many steps and requires a lot of processing equipment. The integration and automation of the equipment are low. When switching between different equipment steps, it is time-consuming, labor-intensive and has low processing efficiency. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a riser forming device and method. The main solution is to address the problem that during the demolding process, directly removing the mold upwards can lead to adhesion between the mold inner wall and the raw material. This adhesion can cause the mold and riser to be lifted together, preventing complete separation. Furthermore, during the current process of compacting the material inside the mold, the material within the cavity formed by the inner and outer molds is not easily compacted, affecting the riser forming quality. Additionally, the riser forming process involves numerous steps and requires a large amount of processing equipment, resulting in low integration and automation. Switching between different equipment steps is time-consuming, labor-intensive, and inefficient.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A riser forming device includes a worktable with an annular notch on its upper surface. An annular plate is rotatably connected within the annular notch. A drive assembly is provided between the annular plate and the worktable, enabling the annular plate to rotate axially, with each rotation causing the annular plate to rotate 90 degrees. Four mold assemblies for shaping are arranged in a circular array on the upper surface of the annular plate. The upper surface of the worktable is provided with a feeding station, a pressing station, a demolding station, and an inspection station in a clockwise direction. The feeding station is equipped with a quantitative feeding assembly for feeding raw materials into one of the mold assemblies. The pressing station is equipped with a multi-stage compaction assembly for double-pressing the material within the mold assembly. The demolding station is equipped with a demolding system for disassembling the mold and peeling off the compacted material. The demolding system includes a demolding assembly one and a demolding assembly two. The demolding assembly one is equipped with an elastic pressing assembly for pressing the material.

[0011] Furthermore, the drive assembly includes a drive motor fixedly connected to the upper surface of the inner ring of the worktable, the output shaft of the drive motor being fixedly connected to a gear passing through the lower surface of the worktable, and an internal gear ring cooperating with the gear being fixedly connected to the lower surface of the annular plate.

[0012] Based on the aforementioned scheme, the four mold components include four chassis fixedly connected to the upper surface of the annular plate in a circular array. The upper surface of the chassis is provided with mold groove one and mold groove two. Mold groove one and mold groove two are respectively provided with an outer mold and an inner mold. Fixing ears are fixedly connected to the outer walls on both sides of the outer mold.

[0013] As a further embodiment of the present invention, the quantitative feeding assembly includes a bracket fixedly connected to the surface of the workbench, a storage tank detachably connected to the bracket by bolts, a quantitative storage tank fixedly connected to the bottom end of the discharge port of the storage tank, an insertion port opened at the bottom end of the quantitative storage tank, an insertion plate inserted into the insertion port, a rotating shaft rotatably connected to the inner wall of the top of the storage tank via a bearing seat, and the bottom end of the rotating shaft extending into the discharge port of the storage tank, a spiral blade fixedly connected to the outer circumference of the bottom end of the rotating shaft, and a second drive motor fixedly connected to the outer wall of the top of the storage tank to rotate the rotating shaft along the axial direction.

[0014] Furthermore, the multi-stage compaction assembly includes two support plates fixedly connected to the upper surface of the workbench. A frame is slidably connected through the two support plates. A U-shaped frame is fixedly connected to the middle of the upper surface of the frame. Two symmetrical cylinders are fixedly connected to the top of the U-shaped frame. The output ends of the two cylinders are fixedly connected to connecting frames through the inner wall of the top of the U-shaped frame. The two connecting frames pass through the frame and are slidably connected to the frame through sliding sleeves. A ring-shaped pressing frame and a pressing plate are fixedly connected to the bottom of the two connecting frames, respectively. A side plate is fixedly connected to the top of one of the support plates. An electric push rod that enables the frame to slide along the support plate is fixedly connected inside the side plate.

[0015] Based on the aforementioned scheme, the demolding assembly includes two square tubes fixedly connected to the upper surface of the worktable. Square rods are slidably connected inside each of the two square tubes. A square plate is fixedly connected between the top ends of the two square rods. A connecting plate is slidably connected through the top ends of both square plates. A bracket is fixedly connected to one end of each connecting plate. A fixing plate is fixedly connected between the two connecting plates. A cylinder is fixedly connected to one side of each square plate. One end of the cylinder passes through the other side of the square plate and is fixed to one side of the fixing plate. An electric push rod is fixedly connected to the upper surface of the worktable and located between the two square tubes, which allows the two square rods to slide up and down along the square tubes.

[0016] As a further embodiment of the present invention, the elastic pressing assembly includes an L-shaped frame fixedly connected to the upper surface of the workbench and located on both sides of two square tubes. An H-shaped frame is slidably connected to one side of the L-shaped frame through a sliding sleeve. A slide is slidably connected to the outer circumference of the bottom end of the H-shaped frame. A pressing block is fixedly connected to the bottom end of the slide. Two springs are fixedly connected between the bottom end of the H-shaped frame and the pressing block. An electric push rod three, which enables the H-shaped frame to slide up and down along the L-shaped frame, is fixedly connected to the outer wall of the top of the L-shaped frame. An annular cleaning plate is fixedly connected to the upper surface of the pressing block.

[0017] Furthermore, the demolding component two includes a protruding plate fixedly connected to the outer circumference of the worktable. Two symmetrical linear motor modules are fixedly connected to the upper surface of the protruding plate. U-shaped rods are fixedly connected to the movers of the two linear motor modules. A notch is opened in the middle of the U-shaped rod. Sliding frames are fixedly connected to both sides of the notch. I-shaped blocks are slidably connected in both sliding frames. The two I-shaped blocks are connected to each other by a strip plate. A crossbar is fixedly connected to one side of each of the two I-shaped blocks. A bracket is fixedly connected between the U-shaped rods. A cylinder three that enables the I-shaped blocks to slide up and down along the sliding frames is fixedly connected to the lower surface of the bracket.

[0018] Based on the aforementioned scheme, the convex plate is provided with a clearance opening that matches the shape of the inner mold, and a bracket is fixedly connected to the lower surface of the convex plate.

[0019] A riser forming method includes the following steps:

[0020] S1: When the riser needs to be processed, the raw material is first quantitatively fed into the cavity of the mold assembly by the quantitative feeding component on the feeding station. After feeding is completed, the driving component drives the ring plate to rotate 90 degrees along the ring notch, and sends the mold assembly containing the raw material to the multi-stage compaction component on the pressing station.

[0021] S2: After the mold assembly containing raw materials is sent to the multi-stage compaction assembly, the material inside the mold assembly is compacted by the multi-stage compaction assembly to form a shape. At the same time, the quantitative feeding assembly at the feeding station feeds the raw materials into a new mold assembly. After the material inside the mold assembly is compacted, the drive assembly drives the ring plate to rotate 90 degrees along the ring notch. During the rotation, the mold assembly with the compacted material is sent to the demolding station, and the mold assembly with the newly fed material is sent to the pressing station. This process is repeated continuously.

[0022] S3: After the internal material is compressed, the mold assembly is sent to the demolding assembly. First, the elastic pressing component passes through the outer mold to press the formed material. Then, the demolding assembly lifts the outer mold upward. After the outer mold is lifted to the highest point, the elastic pressing component moves upward to separate from the material. During the upward movement, the inner wall of the outer mold is cleaned until the elastic pressing component moves to the highest point.

[0023] S4: After lifting the outer mold, the inner mold and the formed riser are lifted together by the demolding component two and the riser is removed. Finally, the inner mold is manually reinstalled into the mold assembly, and then the outer mold is also placed into the mold assembly. Finally, the mold assembly is sent to the detection component by the drive component to check the accuracy of the placement of the inner mold and the outer mold, and wait for the next operation.

[0024] Compared with the prior art, the present invention provides a riser forming device and forming method, which has the following beneficial effects:

[0025] 1. This invention integrates the quantitative feeding component, the multi-stage compaction component, and the demolding system onto a ring plate, forming a feeding station, a pressing station, a demolding station, and an inspection station, thereby achieving rapid prototyping of risers. The equipment is highly integrated and automated.

[0026] 2. The present invention, through the demolding components one and two set in the demolding system, can separate the outer mold and the inner mold respectively, thereby removing the formed riser. During the demolding process, the outer mold and the inner mold move vertically when demolding, avoiding mold biting or misalignment friction caused by demolding, which could lead to damage to the riser.

[0027] 3. The present invention uses an elastic pressing component and a demolding component in combination to apply downward pressure to the formed riser during the process of lifting the outer mold upward, so as to prevent the riser from being lifted along with the outer mold during the upward process and ensure that the outer mold can be completely separated from the riser.

[0028] 4. The present invention uses a ring-shaped pressing frame and pressing plate in the multi-stage compaction assembly to sequentially press the material in the lower half cavity and the top of the mold assembly, thereby avoiding the material in the lower half cavity remaining in a loose state after pressing directly from the top, which would prevent the riser from forming effectively.

[0029] 5. This invention uses a drive component in conjunction with multiple components at multiple workstations to precisely arrange each workstation according to the process sequence. Through timing control, the mold platform is automatically moved to the unloading, compaction, and demolding workstations in sequence, eliminating the manual handling and waiting time in traditional single-machine segmented operation and effectively increasing the efficiency of riser processing and forming.

[0030] 6. The present invention achieves precise supply of raw materials through the quantitative feeding component, avoiding the situation where the riser density is too low due to insufficient filler or the mold is damaged due to excessive filler. In addition, the quantitative storage tank is designed to be detachable and can be replaced according to the material needs. The structure is simple and convenient to use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the front three-dimensional structure of a riser forming device proposed in this invention;

[0032] Figure 2 This is a schematic diagram of the rear three-dimensional structure of a riser forming device proposed in this invention;

[0033] Figure 3 This is an exploded view of the mold assembly of a riser forming device proposed in this invention.

[0034] Figure 4 This is a schematic diagram of the quantitative feeding component structure of a riser forming device proposed in this invention;

[0035] Figure 5 This invention proposes a riser forming device. Figure 4 A partially enlarged structural diagram;

[0036] Figure 6 This is a schematic diagram of the multi-stage compaction component structure of a riser forming device proposed in this invention;

[0037] Figure 7 This is an enlarged structural schematic diagram of a demolding component of a riser forming device proposed in this invention;

[0038] Figure 8This invention proposes a riser forming device. Figure 7 A partially enlarged structural diagram;

[0039] Figure 9 This is a schematic diagram of the elastic pressing component structure of a riser forming device proposed in this invention;

[0040] Figure 10 This is a schematic diagram of the demolding component two of the riser forming equipment proposed in this invention;

[0041] Figure 11 This invention proposes a riser forming device. Figure 10 A partial sectional view of the structure;

[0042] Figure 12 This is a schematic diagram of the bottom structure of the workbench of a riser forming device proposed in this invention.

[0043] In the diagram: 1. Workbench; 2. Annular notch; 3. Annular plate; 4. Drive assembly; 401. Drive motor one; 402. Gear; 403. Internal gear ring; 404. Pin hole; 5. Mold assembly; 501. Chassis; 502. Mold groove one; 503. Mold groove two; 504. Outer mold; 505. Inner mold; 506. Fixing lug; 6. Quantitative feeding assembly; 601. Support; 602. Storage tank; 603. Drive motor two; 604. Rotating shaft; 605. Spiral blade; 606. Quantitative storage tank; 607. Insertion port; 608. Insert plate; 7. Multi-stage compaction assembly; 701. Support plate; 702. Frame; 703. U-shaped frame; 704. Side plate; 705. Electric push rod one; 706. Connecting frame; 707. 708. Circular pressure frame; 709. Pressure plate; 7000. Cylinder 1; 8. Demolding assembly 1; 801. Square tube; 802. Square rod; 803. Electric push rod 2; 804. Connecting plate; 805. Square plate; 806. Fixing plate; 807. Cylinder 2; 808. Insert bracket; 9. Elastic pressure assembly; 901. L-shaped frame; 902. H-shaped frame; 903. Slide carriage; 904. Pressure block; 905. Spring; 906. Electric push rod 3; 907. Circular cleaning plate; 10. Demolding assembly 2; 1001. Protruding plate; 1002. Linear motor module; 1003. U-shaped rod; 1004. Slide frame; 1005. I-shaped block; 1006. Crossbar; 1007. Alternating opening; 1008. Bracket; 1009. Cylinder 3. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0045] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] Please see Figures 1-12 As shown, a riser forming device includes a worktable 1. An annular notch 2 is formed on the upper surface of the worktable 1. An annular plate 3 is rotatably connected inside the annular notch 2. The cross-section of the annular notch 2 is stepped and cooperates with the annular plate 3. A drive assembly 4 is provided between the annular plate 3 and the worktable 1, which enables the annular plate 3 to rotate axially. Each rotation causes the annular plate 3 to rotate 90 degrees. Four mold assemblies 5 for shaping are arranged in a ring array on the upper surface of the annular plate 3. The upper surface of the worktable 1 is provided with a feeding station, a pressing station, a demolding station and an inspection station in a clockwise direction. A quantitative feeding assembly 6 is provided at the feeding station for feeding raw materials into one of the mold assemblies 5. A multi-stage compaction assembly 7 is provided at the pressing station for double compacting the material in the mold assembly 5. A demolding system is provided at the demolding station for disassembling the mold and peeling off the compacted material. The demolding system includes a demolding assembly 1 8 and a demolding assembly 2 10. An elastic pressing assembly 9 is provided on the demolding assembly 1 8 for compacting the material.

[0048] Specifically, in the mold, the riser cavity is a cavity that stores liquid metal. It replenishes the metal during the formation of the casting and has the functions of preventing shrinkage cavities, porosity, venting, and slag accumulation. The main function of the riser is to feed the metal.

[0049] It provides liquid metal supply during the cooling and solidification process of molten metal, compensating for the volume loss caused by solidification shrinkage of the casting body, thereby preventing defects such as shrinkage cavities and porosity inside the casting.

[0050] However, if the mold is removed directly upwards during the demolding process, the inner wall of the mold is prone to sticking to the raw material being molded. During the removal process, the mold and the riser are easily lifted together, making it impossible to completely separate the mold and the riser.

[0051] When the riser needs to be processed, the raw material is first quantitatively fed into the cavity of the mold assembly 5 by the quantitative feeding component 6 on the feeding station. After the feeding is completed, the driving component 4 drives the ring plate 3 to rotate 90 degrees along the ring notch 2, and sends the mold assembly 5 containing the raw material to the multi-stage compaction component 7 on the pressing station.

[0052] After the mold assembly 5 containing raw materials is sent to the multi-stage compaction assembly 7, the material in the mold assembly 5 is compacted by the multi-stage compaction assembly 7 to form a shape. At the same time, the quantitative feeding assembly 6 at the feeding station feeds the raw materials into the new mold assembly 5. After the material in the mold assembly 5 is compacted, the driving assembly 4 drives the ring plate 3 to rotate 90 degrees along the ring notch 2. During the rotation, the mold assembly 5 with the compacted material is sent to the demolding station, and the mold assembly 5 with the newly fed material is sent to the pressing station. This process is repeated continuously.

[0053] After the internal material is compressed, the mold assembly 5 is sent to the demolding assembly. First, the elastic pressing assembly 9 passes through the outer mold 504 to press the formed material. Then, the demolding assembly 8 lifts the outer mold 504 upward. After the outer mold 504 is lifted to the highest point, the elastic pressing assembly 9 moves upward to separate from the material. During the upward movement, the inner wall of the outer mold 504 is cleaned until the elastic pressing assembly 9 moves to the highest point.

[0054] After lifting the outer mold 504, the inner mold 505 and the formed riser are lifted together by the demolding component 2 10 and the riser is removed. Finally, the inner mold 505 is manually reinstalled into the mold assembly 5. Then, the outer mold 504 is also placed into the mold assembly 5. Finally, the mold assembly 5 is sent to the detection component by the drive component 4 to check whether the inner mold 505 and the outer mold 504 are placed accurately, and wait for the next operation.

[0055] The further drive assembly 4 includes a drive motor 401 that is bolted to the upper surface of the inner ring of the worktable 1. The output shaft of the drive motor 401 passes through the lower surface of the worktable 1 and is bolted to a gear 402. The lower surface of the annular plate 3 is bolted to an internal gear ring 403 that works with the gear 402.

[0056] Specifically, in the process of using the drive component 4, the drive motor 401 is first started to drive the gear 402 to rotate. During the rotation of the gear 402, the internal gear ring 403 that meshes with it will rotate, which in turn drives the ring plate 3 to rotate. Each time the drive motor 401 is started, it will drive the ring plate 3 to rotate 90 degrees.

[0057] The bottom of the annular plate 3 is provided with four sets of pin holes 404, which correspond to the feeding station, pressing station, demolding station and inspection station respectively. Inside the workbench 1 and below the annular plate 3, there is an electromagnetic lock that cooperates with the pin holes 404, so as to realize the precise switching of the annular plate 3 in different stations and the locking positioning after switching, thereby improving the accuracy of processing in different stations.

[0058] Furthermore, the four mold components 5 include four base plates 501 arranged in a ring array and fixedly connected to the upper surface of the annular plate 3 by bolts. The upper surface of the base plate 501 is provided with mold groove 1 502 and mold groove 2 503. The mold groove 1 502 and mold groove 2 503 are respectively provided with an outer mold 504 and an inner mold 505. The outer mold 504 has fixing ears 506 fixedly connected to both sides of the outer wall by bolts.

[0059] To solve the technical problem of quantitative material feeding, the present invention employs a quantitative feeding assembly 6, including a bracket 601 fixedly connected to the upper surface of the workbench 1 by bolts. A storage tank 602 is detachably connected to the bracket 601 by bolts. A quantitative storage tank 606 is fixedly connected to the bottom end of the outlet of the storage tank 602 by bolts. The bottom end of the quantitative storage tank 606 has an insertion port 607, into which an insertion plate 608 is inserted. A rotating shaft 604 is rotatably connected to the inner wall of the top of the storage tank 602 via a bearing seat, and the bottom end of the rotating shaft 604 extends into the outlet of the storage tank 602. A spiral blade 605 is welded to the outer circumference of the bottom end of the rotating shaft 604. A drive motor 603 for rotating the rotating shaft 604 along the axial direction is fixedly connected to the outer wall of the top of the storage tank 602 by bolts.

[0060] Specifically, during the processing of the riser, the material is first fed into the mold assembly 5 through the quantitative feeding component 6. During the feeding process, the insert plate 608 is first inserted into the slot 607. Then, the drive motor 603 is started to drive the rotating shaft 604 to rotate. While the rotating shaft 604 is rotating, the material in the storage tank 602 is pushed into the quantitative storage tank 606 through the spiral blade 605 at its bottom. Then, during the feeding, the insert plate 608 is pulled out so that the material in the quantitative storage tank 606 is fed into the mold assembly 5. After the feeding is completed, the drive component 4 drives the annular plate 3 to rotate 90 degrees to send the mold assembly 5 under the multi-stage compaction component 7.

[0061] The quantitative feeding component 6 ensures precise supply of raw materials, avoiding situations where insufficient filler leads to low riser density or excessive filler causes mold damage. Furthermore, the quantitative storage tank 606 is designed to be detachable and can be replaced according to material requirements, making it simple and convenient to use.

[0062] To solve the technical problem of compacting and shaping materials, this invention employs a multi-stage compaction assembly 7, including two support plates 701 bolted to the upper surface of the workbench 1. A frame 702 is slidably connected through the two support plates 701. A U-shaped frame 703 is bolted to the middle of the upper surface of the frame 702. Two symmetrical cylinders 709 are bolted to the top of the U-shaped frame 703. The output ends of the two cylinders 709 pass through the inner wall of the top of the U-shaped frame 703 and are bolted to connecting frames 706. The two connecting frames 706 pass through the frame 702 and are slidably connected to the frame 702 via sliding sleeves. A ring-shaped pressing frame 707 and a pressing plate 708 are bolted to the bottom of the two connecting frames 706, respectively. A side plate 704 is bolted to the top of one of the support plates 701. An electric push rod 705, which allows the frame 702 to slide along the support plate 701, is bolted to the inside of the side plate 704.

[0063] Specifically, after the mold assembly 5 is sent to the multi-stage compaction assembly 7, one of the cylinders 709 is first activated to extend, thereby driving the connecting frame 706 at its end to slide downward along the frame 702. During the downward sliding of the connecting frame 706, the annular pressing frame 707 at its bottom will slide downward. During the downward movement of the annular pressing frame 707, the material in the annular cavity of the mold assembly 5 will be compacted. After the compaction is repeated two to three times, the cylinder 709 is activated to retract, and the annular pressing frame 707 will return to the initial position through the connecting frame 706.

[0064] After the material in the annular cavity of the mold assembly 5 is compressed, the electric push rod 705 is activated to retract, thereby driving the frame 702 to move laterally along the support plate 701 until the pressure plate 708 is directly above the mold assembly 5. After the movement is completed, another cylinder 709 is activated to extend. During the extension of this cylinder 709, the pressure plate 708 at the bottom of the connecting frame 706 moves downward through the connecting frame 706 at its end. During the downward movement of the pressure plate 708, the material in the mold assembly 5 is compressed again, thereby compressing the material in the upper cavity and completing the compression and shaping of the riser. After the shaping is completed, the drive assembly 4 drives the annular plate 3 to rotate 90 degrees and send the mold assembly 5 under the demolding assembly 8.

[0065] By switching between the annular pressing frame 707 and the pressing plate 708 provided in the multi-stage compaction component 7, the material in the lower half cavity and the top of the mold component 5 are pressed sequentially, so as to avoid the material in the lower half cavity remaining in a loose state after being pressed directly from the top, which would prevent the riser from being effectively formed.

[0066] To solve the technical problem of mold demolding, the present invention employs a demolding assembly 8, which includes two square tubes 801 fixedly connected to the upper surface of the workbench 1 by bolts. Square rods 802 are slidably connected inside each of the two square tubes 801. A square plate 805 is fixedly connected between the top ends of the two square rods 802 by bolts. A connecting plate 804 is slidably connected through the top ends of both square plates 805. A bracket 808 is fixedly connected to one end of each connecting plate 804 by bolts. A fixing plate 806 is fixedly connected between the two connecting plates 804 by bolts. A cylinder 807 is fixedly connected to one side of the square plate 805 by bolts. One end of the cylinder 807 passes through the square plate 805 and the other end is fixed to one side of the fixing plate 806. An electric push rod 803, which causes the two square rods 802 to slide up and down along the square tubes 801, is fixedly connected to the upper surface of the workbench 1 between the two square tubes 801 by bolts.

[0067] Specifically, after the mold assembly 5 is sent into the mold release assembly 8, the riser after molding is first slightly pressed by the elastic pressing assembly 9, and then the outer mold 504 is separated by the mold release assembly 8. During the pressing process, the electric push rod 906 is first activated to extend, thereby driving the slide 903 to move downward through the H-shaped frame 902. As the slide 903 moves downward, it will drive the bottom pressing block 904 to move downward until the pressing block 904 contacts the riser formed in the mold assembly 5. Then, the electric push rod 906 is extended slightly to force the spring 905.

[0068] To prevent damage to the raw material during demolding, this invention employs an elastic pressing assembly 9, comprising an L-shaped frame 901 bolted to the upper surface of the workbench 1 and located on both sides of two square tubes 801. An H-shaped frame 902 is slidably connected to one side of the L-shaped frame 901 via a sliding sleeve. A slide 903 is slidably connected to the outer circumference of the bottom end of the H-shaped frame 902. A pressing block 904 is bolted to the bottom end of the slide 903. Two springs 905 are welded between the bottom end of the H-shaped frame 902 and the pressing block 904. An electric push rod 906, which allows the H-shaped frame 902 to slide up and down along the L-shaped frame 901, is bolted to the top outer wall of the L-shaped frame 901. An annular cleaning plate 907 is bolted to the upper surface of the pressing block 904.

[0069] Further, after the riser in the mold assembly 5 is pressed, the cylinder 807 is activated to extend the mold assembly. The connecting plate 804 drives the insert 808 to move. When the end of the insert 808 is inserted into the two fixing ears 506 on the outer mold 504, the electric push rod 803 is activated to extend the mold assembly 504, thereby driving the square plate 805 to move upward along the square tube 801. This causes the outer mold 504 to move upward and separate from the mold assembly 5. During the upward movement of the outer mold 504, its inner wall comes into contact with the annular cleaning plate 907 on the pressure block 904, thereby cleaning the inner wall of the outer mold 504.

[0070] Furthermore, after raising the outer mold 504 to its highest position, the electric push rod 906 is restarted to retract, thereby driving the pressure block 904 to move upward through the H-shaped frame 902 and the slide 903. During the upward movement of the pressure block 904, the annular cleaning plate 907 will come into contact with the inner wall of the outer mold 504 again to clean the inner wall of the outer mold 504.

[0071] The elastic pressing component 9 works in conjunction with the demolding component 8 to apply downward pressure to the formed riser during the process of lifting the outer mold 504 upward, preventing the riser from being lifted along with the outer mold 504 during the upward lifting process, and ensuring that the outer mold 504 can be completely separated from the riser.

[0072] The further demolding assembly 2 10 includes a protruding plate 1001 fixedly connected to the outer circumference of the worktable 1 by bolts. Two symmetrical linear motor modules 1002 are fixedly connected to the upper surface of the protruding plate 1001 by bolts. U-shaped rods 1003 are fixedly connected to the movers of the two linear motor modules 1002 by bolts. A notch is opened in the middle of the U-shaped rod 1003. Slide frames 1004 are fixedly connected to both sides of the notch by bolts. I-shaped blocks 1005 are slidably connected in the two slide frames 1004. The two I-shaped blocks 1005 are connected to each other by a strip plate. A crossbar 1006 is fixedly connected to one side of the two I-shaped blocks 1005 by bolts. A bracket 1008 is fixedly connected to the U-shaped rods 1003 by bolts. A cylinder 3 1009 that enables the I-shaped blocks 1005 to slide up and down along the slide frames 1004 is fixedly connected to the lower surface of the bracket 1008 by bolts.

[0073] Specifically, two linear motor modules 1002 are then started simultaneously to drive the U-shaped rod 1003 to move towards the mold assembly 5. During the movement of the U-shaped rod 1003, the crossbar 1006 is moved through the sliding frame 1004 and the I-shaped block 1005. The crossbar 1006 is inserted into the hole on the inner mold 505. Then, the cylinder 1009 is started to move upward along the sliding frame 1004 through the two I-shaped blocks 1005, thereby driving the inner mold 505 and the riser formed on it to move upward.

[0074] By using the demolding assembly 18 and demolding assembly 210 together, the outer mold 504 and the inner mold 505 can be separated respectively, thereby removing the formed riser. During the demolding process, the outer mold 504 and the inner mold 505 move vertically when demolding, avoiding mold biting or misalignment friction caused by manual demolding, which could lead to damage to the riser.

[0075] After the inner mold 505 is separated from the mold groove 503, the two linear motor modules 1002 are restarted to move in the opposite direction. When the inner mold 505 moves directly above the relief opening 1007, the cylinder 1009 retracts. When the bottom of the inner mold 505 enters the relief opening 1007, the linear motor module 1002 is restarted again to separate the crossbar 1006 from the inner mold 505.

[0076] By using the drive component 4 in conjunction with multiple components on multiple workstations, each workstation is precisely arranged according to the process sequence. Through timing control, the mold platform is automatically moved to the unloading, compaction, and demolding workstations in sequence, eliminating the manual handling and waiting time in traditional single-machine segmented operation and effectively increasing the efficiency of riser processing and forming.

[0077] Furthermore, the protruding plate 1001 has a relief opening 1007 that matches the shape of the inner mold 505, and a bracket 1008 is fixedly connected to the lower surface of the protruding plate 1001 by bolts.

[0078] Subsequently, the linear motor module 1002 and cylinder 1009 work together to move the crossbar 1006 above the inner mold 505, pressing the inner mold 505 down so that it separates from the formed riser and falls onto the bracket 1008.

[0079] After the inner mold 505 separates from the outer mold 504, the outer mold 504 is put back into the mold groove 502 on the chassis 501 by the demolding component 8, which can separate the inner mold 505 from the formed riser. Then, the inner mold 505 is manually placed into the mold groove 503 on the chassis 501. Then, the drive component 4 drives the ring plate 3 to rotate 90 degrees to the inspection station. The inner mold 505 and the outer mold 504 are manually checked to see if they are accurately installed on the chassis 501, and then the machine is ready for the next operation.

[0080] It should be noted that drive motor 401 and drive motor 603 are servo motors with encoders. The number of rotations and rotation angle of the motor output shaft are controllable and highly accurate. Those skilled in the art can set them according to actual needs, which will not be elaborated here.

[0081] It should be noted that electric actuator 1 705, electric actuator 2 803, and electric actuator 3 906 are all existing technologies. Most of them are used in conjunction with magnetic switches, proximity switches, or photoelectric switches to achieve precise control of the extension and retraction displacement of the actuator. Those skilled in the art can set them according to actual needs, which will not be elaborated here.

[0082] It should be noted that cylinders 709 (first cylinder), 807 (second cylinder), and 1009 (third cylinder) are power actuators that convert the pressure energy of compressed air into mechanical energy. By controlling the gas inlet and outlet, they drive the piston to perform linear reciprocating motion. They can be used in conjunction with magnetic switches, proximity switches, or photoelectric switches to achieve precise control of the extension and retraction displacement of the cylinder piston rod. Those skilled in the art can set these parameters according to actual needs, which will not be elaborated here.

[0083] The riser forming method of this invention specifically includes the following steps:

[0084] S1: When processing the riser, the material is first fed into the mold assembly 5 through the quantitative feeding component 6. During the feeding process, the insert plate 608 is first inserted into the insert 607. Then, the drive motor 603 is started to drive the rotating shaft 604 to rotate. While the rotating shaft 604 is rotating, the material in the storage tank 602 is pushed into the quantitative storage tank 606 through the spiral blade 605 at its bottom. Then, when feeding, the insert plate 608 is pulled out so that the material in the quantitative storage tank 606 is fed into the mold assembly 5. After feeding is completed, the drive component 4 drives the ring plate 3 to rotate 90 degrees to send the mold assembly 5 under the multi-stage compaction component 7.

[0085] S2: After the mold assembly 5 is sent to the multi-stage compaction assembly 7, one of the cylinders 709 is first activated to extend, thereby driving the connecting frame 706 at its end to slide down along the frame 702. During the downward sliding of the connecting frame 706, the annular pressing frame 707 at its bottom will slide down. During the downward movement of the annular pressing frame 707, the material in the annular cavity of the mold assembly 5 will be compacted. After the compaction is repeated two to three times, the cylinder 709 is activated to retract, and the annular pressing frame 707 will return to the initial position through the connecting frame 706.

[0086] S3: After the material in the annular cavity of the mold assembly 5 is compressed, the electric push rod 705 is activated to retract, thereby driving the frame 702 to move laterally along the support plate 701 until the pressure plate 708 is directly above the mold assembly 5. After the movement is completed, another cylinder 709 is activated to extend. During the extension of this cylinder 709, the pressure plate 708 at the bottom of the connecting frame 706 is driven to move downward through the connecting frame 706 at its end. During the downward movement of the pressure plate 708, the material in the mold assembly 5 will be compressed again, thereby compressing the material in the upper cavity and completing the compression and shaping of the riser. After the shaping is completed, the drive assembly 4 drives the annular plate 3 to rotate 90 degrees again to send the mold assembly 5 under the demolding assembly 8.

[0087] S4: After the mold assembly 5 is sent into the lower part of the demolding assembly 8, the riser after molding is first slightly pressed by the elastic pressing assembly 9, and then the outer mold 504 is separated by the demolding assembly 8. During the pressing process, the electric push rod 906 is first activated to extend, thereby driving the slide 903 to move downward through the H-shaped frame 902. During the downward movement of the slide 903, the pressing block 904 at the bottom will move downward until the pressing block 904 contacts the riser formed in the mold assembly 5. Then, the electric push rod 906 is extended slightly to make the spring 905 bear the force.

[0088] S5: After the riser in the mold assembly 5 is pressed, the cylinder 807 is started to extend. During this process, the connecting plate 804 drives the insert 808 to move. When the end of the insert 808 is inserted into the two fixed ears 506 on the outer mold 504, the electric push rod 803 is started to extend, thereby driving the square plate 805 to move upward along the square tube 801, and thus causing the outer mold 504 to move upward and separate from the mold assembly 5. During the upward movement of the outer mold 504, its inner wall contacts the annular cleaning plate 907 on the pressure block 904, thereby cleaning the inner wall of the outer mold 504.

[0089] S6: After raising the outer mold 504 to its highest position, restart the electric push rod 906 to retract, and then drive the pressure block 904 to move upward through the H-shaped frame 902 and the slide 903. During the upward movement of the pressure block 904, the annular cleaning plate 907 will contact the inner wall of the outer mold 504 again to clean the inner wall of the outer mold 504.

[0090] S7: Subsequently, two linear motor modules 1002 are simultaneously activated to drive the U-shaped rod 1003 to move towards the mold assembly 5. During the movement of the U-shaped rod 1003, it will drive the crossbar 1006 to move through the sliding frame 1004 and the I-shaped block 1005. The crossbar 1006 will then be inserted into the hole on the inner mold 505. Then, cylinder three 1009 is activated to move upward along the sliding frame 1004 through the two I-shaped blocks 1005, thereby driving the inner mold 505 and the riser formed on it to move upward. When the inner mold 505 disengages from the mold groove two 503... Then, the two linear motor modules 1002 are restarted and moved in the opposite direction. When the inner mold 505 moves directly above the relief opening 1007, the cylinder 1009 retracts. When the bottom of the inner mold 505 enters the relief opening 1007, the linear motor module 1002 is restarted again to disengage the crossbar 1006 from the inner mold 505. Then, the linear motor module 1002 and the cylinder 1009 work together to move the crossbar 1006 above the inner mold 505 and press the inner mold 505 down, so that the inner mold 505 disengages from the formed riser and falls onto the bracket 1008.

[0091] S8: After the inner mold 505 separates from the outer mold 504, the outer mold 504 is put back into the mold groove 502 on the chassis 501 by the demolding component 8, so that the inner mold 505 and the formed riser can be separated. Then, the inner mold 505 is also placed into the mold groove 503 on the chassis 501 by manual means. Then, the ring plate 3 is rotated 90 degrees to the inspection station by the drive component 4. The inner mold 505 and the outer mold 504 are checked by manual means to see if they are accurately installed on the chassis 501, and wait for the next operation.

[0092] S9: When using the drive assembly 4, the drive motor 401 is started first to drive the gear 402 to rotate. During the rotation of the gear 402, the internal gear ring 403 that meshes with it will rotate, which in turn drives the ring plate 3 to rotate. Each time the drive motor 401 is started, it will drive the ring plate 3 to rotate 90 degrees.

[0093] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A riser forming device, comprising a worktable (1), characterized in that, The upper surface of the workbench (1) has an annular notch (2), and an annular plate (3) is rotatably connected inside the annular notch (2). A drive assembly (4) is provided between the annular plate (3) and the workbench (1) to enable the annular plate (3) to rotate along the axial direction, and each rotation causes the annular plate (3) to rotate 90 degrees. The upper surface of the annular plate (3) is provided with four mold assemblies (5) for shaping in a circular array. The upper surface of the workbench (1) is provided with a feeding station, a pressing station, and a demolding station in a clockwise direction. The material feeding station is equipped with a quantitative feeding component (6) for feeding raw materials into one of the mold components (5). The material pressing station is equipped with a multi-stage compaction component (7) for double-pressing the material inside the mold component (5). The demolding station is equipped with a demolding system for disassembling the mold and peeling off the compacted material. The demolding system includes a demolding component one (8) and a demolding component two (10). The demolding component one (8) is equipped with an elastic pressing component (9) for pressing the material. The demolding assembly (8) includes two square tubes (801) fixedly connected to the upper surface of the workbench (1). Square rods (802) are slidably connected inside the two square tubes (801). A square plate (805) is fixedly connected between the top ends of the two square rods (802). A connecting plate (804) is slidably connected through the top ends of the two square plates (805). A bracket (808) is fixedly connected to one end of the two connecting plates (804). A fixing plate (806) is fixedly connected between the two connecting plates (804). A cylinder (807) is fixedly connected to one side of the square plate (805). One end of the cylinder (807) passes through the square plate (805) and is fixed to one side of the fixing plate (806). An electric push rod (803) is fixedly connected to the upper surface of the workbench (1) and located between the two square tubes (801), which allows the two square rods (802) to slide up and down along the square tubes (801). The elastic pressing assembly (9) includes an L-shaped frame (901) fixedly connected to the upper surface of the workbench (1) and located on both sides of two square tubes (801). An H-shaped frame (902) is slidably connected through a sliding sleeve on one side of the L-shaped frame (901). A slide (903) is slidably connected to the outer circumference of the bottom end of the H-shaped frame (902). A pressing block (904) is fixedly connected to the bottom end of the slide (903). Two springs (905) are fixedly connected between the bottom end of the H-shaped frame (902) and the pressing block (904). An electric push rod (906) is fixedly connected to the top outer wall of the L-shaped frame (901) so that the H-shaped frame (902) can slide up and down along the L-shaped frame (901). An annular cleaning plate (907) is fixedly connected to the upper surface of the pressing block (904). The demolding assembly 2 (10) includes a convex plate (1001) fixedly connected to the outer circumference of the workbench (1). Two symmetrical linear motor modules (1002) are fixedly connected to the upper surface of the convex plate (1001). A U-shaped rod (1003) is fixedly connected to the mover of the two linear motor modules (1002). A notch is opened in the middle of the U-shaped rod (1003). A sliding frame (1004) is fixedly connected to both sides of the notch. An I-shaped block (1005) is slidably connected inside the two sliding frames (1004). The two I-shaped blocks (1005) are connected to each other by a strip plate. A crossbar (1006) is fixedly connected to one side of each of the two I-shaped blocks (1005). A bracket (1008) is fixedly connected between the U-shaped rods (1003). A cylinder 3 (1009) is fixedly connected to the lower surface of the bracket (1008) to enable the I-shaped block (1005) to slide up and down along the sliding frame (1004).

2. The riser forming equipment according to claim 1, characterized in that, The drive assembly (4) includes a drive motor (401) fixedly connected to the upper surface of the inner ring of the worktable (1). The output shaft of the drive motor (401) passes through the lower surface of the worktable (1) and is fixedly connected to a gear (402). The lower surface of the annular plate (3) is fixedly connected to an internal gear ring (403) that cooperates with the gear (402). The bottom of the annular plate (3) is provided with four sets of pin holes (404). The four sets of pin holes (404) correspond to the feeding station, the pressing station, the demolding station and the inspection station, respectively. An electromagnetic lock that cooperates with the pin holes (404) is provided inside the worktable (1) and below the annular plate (3).

3. The riser forming equipment according to claim 1, characterized in that, The four mold components (5) include four bases (501) fixedly connected to the upper surface of the annular plate (3) in a ring array. The upper surface of the bases (501) is provided with mold groove one (502) and mold groove two (503). The mold groove one (502) and mold groove two (503) are respectively provided with an outer mold (504) and an inner mold (505). The outer mold (504) is fixedly connected with fixing ears (506) on both sides of the outer wall.

4. The riser forming equipment according to claim 1, characterized in that, The quantitative feeding assembly (6) includes a bracket (601) fixedly connected to the upper surface of the workbench (1). A storage tank (602) is detachably connected to the bracket (601) by bolts. A quantitative storage tank (606) is fixedly connected to the bottom of the outlet of the storage tank (602). An insertion port (607) is opened at the bottom of the quantitative storage tank (606). An insertion plate (608) is inserted into the insertion port (607). A rotating shaft (604) is rotatably connected to the inner wall of the top of the storage tank (602) through a bearing seat. The bottom end of the rotating shaft (604) extends into the outlet of the storage tank (602). A spiral blade (605) is fixedly connected to the outer circumference of the bottom end of the rotating shaft (604). A second drive motor (603) is fixedly connected to the outer wall of the top of the storage tank (602) to make the rotating shaft (604) rotate along the axial direction.

5. The riser forming equipment according to claim 4, characterized in that, The multi-stage compaction assembly (7) includes two support plates (701) fixedly connected to the upper surface of the workbench (1). A frame (702) is slidably connected through the two support plates (701). A U-shaped frame (703) is fixedly connected to the middle position of the upper surface of the frame (702). Two symmetrical cylinders (709) are fixedly connected to the top of the U-shaped frame (703). The output ends of the two cylinders (709) are fixedly connected through the inner wall of the top of the U-shaped frame (703). The frame (706) has two connecting frames (706) that pass through the frame (702) and are slidably connected to the frame (702) through a sliding sleeve. The bottom ends of the two connecting frames (706) are respectively fixedly connected to an annular pressure frame (707) and a pressure plate (708). The top end of one of the support plates (701) is fixedly connected to a side plate (704). An electric push rod (705) that enables the frame (702) to slide along the support plate (701) is fixedly connected inside the side plate (704).

6. The riser forming equipment according to claim 1, characterized in that, The protruding plate (1001) has a clearance opening (1007) that matches the shape of the inner mold (505), and a bracket (1008) is fixedly connected to the lower surface of the protruding plate (1001).

7. A riser forming method, applicable to the riser forming equipment described in claim 1, characterized in that, Includes the following steps: S1: When it is necessary to process the riser, the raw material is first quantitatively fed into the cavity of the mold assembly (5) by the quantitative feeding component (6) on the feeding station. After feeding, the driving component (4) drives the ring plate (3) to rotate 90 degrees along the ring notch (2) and sends the mold assembly (5) containing the raw material to the multi-stage compaction component (7) on the pressing station. S2: After the mold assembly (5) containing raw materials is sent to the multi-stage compaction assembly (7), the material in the mold assembly (5) is compacted by the multi-stage compaction assembly (7) to form a shape. At the same time, the quantitative feeding assembly (6) at the feeding station feeds the raw materials into the new mold assembly (5). After the material in the mold assembly (5) is compacted, the ring plate (3) is rotated 90 degrees along the ring notch (2) by the drive assembly (4). During the rotation, the mold assembly (5) with the compacted material is sent to the demolding station, and the mold assembly (5) with the newly fed material is sent to the pressing station. This process is repeated continuously. S3: After the internal material is compressed, the mold assembly (5) is sent to the demolding assembly. First, the elastic pressing assembly (9) passes through the outer mold (504) to press the formed material. Then, the demolding assembly (8) lifts the outer mold (504) upward. After the outer mold (504) is lifted to the highest point, the elastic pressing assembly (9) is moved upward to separate from the material. During the upward movement, the inner wall of the outer mold (504) is cleaned until the elastic pressing assembly (9) moves to the highest point. S4: After lifting the outer mold (504), the inner mold (505) and the formed riser are lifted together by the demolding component 2 (10) and the riser is removed. Finally, the inner mold (505) is manually reinstalled into the mold assembly (5). Then the outer mold (504) is also placed into the mold assembly (5). Finally, the mold assembly (5) is sent to the detection component by the drive component (4) to check whether the inner mold (505) and the outer mold (504) are placed accurately, and wait for the next operation.

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