A flange plate production mold of rapid prototyping

Abstract

This utility model belongs to the field of flange production mold technology, and in particular, a rapid prototyping flange production mold. It addresses the problem that while ejecting the flange from the lower mold is convenient, the mold-closing casting method requires waiting for the molten metal to cool before removal, followed by lathe machining of the flange's pre-drilled holes, resulting in low forming efficiency. The proposed solution includes a processing base with a lower mold groove at its top and an upper mold directly above it. Two guide rails are symmetrically fixed to the top of the processing base, and a single movable seat is slidably mounted on these two guide rails. A sprue is located at the bottom of the movable seat. In use, this utility model directly uses pressure to form metal powder into a perforated flange, significantly shortening the forming time and improving production efficiency. Furthermore, after one forming operation, the next sprue injection and mold closing operations can be performed quickly, further enhancing production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of flange production mold technology, and in particular to a rapid prototyping flange production mold. Background Technology

[0002] A flange, also called a flange or flange plate, is an important mechanical part, belonging to the category of connecting components, mainly used for connecting, fixing, and sealing two or more parts. It is typically a disc with holes that accept bolts or other fasteners, enabling the fixing and connection between different components. Common materials include carbon steel, stainless steel, and aluminum alloy.

[0003] A search revealed a flange mold disclosed in patent CN222406793U, which facilitates the ejection of the flange from the lower mold. However, the mold uses a closed-mold casting method, requiring the molten slurry inside the mold to cool before removal. The flange is then machined using a lathe to create the pre-drilled holes, resulting in low forming efficiency.

[0004] To address the aforementioned problems, this utility model document proposes a rapid prototyping flange production mold. Utility Model Content

[0005] This invention provides a rapid prototyping flange production mold, which solves the shortcomings of the prior art, which, although convenient for ejecting the flange from the lower mold, requires waiting for the molten slurry in the mold to cool before removing it and then machining the flange's pre-drilled holes on a lathe, resulting in low forming efficiency.

[0006] This utility model provides the following technical solution:

[0007] A rapid prototyping flange production mold, comprising:

[0008] The processing base has a lower mold groove on its top and an upper mold directly above the lower mold groove. Two guide rails are symmetrically fixed on the top of the processing base, and the same movable base is slidably mounted on the two guide rails. An injection groove is provided at the bottom of the movable base, a feeding assembly is provided at the top of the processing base, and an elevating assembly is provided on the inner wall of the processing base.

[0009] In one possible design, the bottom of the inner wall of the lower mold groove is fixedly provided with a main column for forming the center hole of the flange and a plurality of secondary columns for forming the pre-reserved holes on the edge of the flange, and the bottom of the upper mold is provided with a groove for fitting the corresponding main column and secondary columns on the lower mold groove.

[0010] In one possible design, a mounting bracket is fixedly installed on the top of the processing base, and a hydraulic cylinder is fixedly installed on the top of the mounting bracket. The output end of the hydraulic cylinder slides through the inner wall of the mounting bracket and is fixedly connected to the top of the upper mold. The hydraulic cylinder is connected to a matching hydraulic station through an oil pipe.

[0011] In one possible design, a mounting plate is fixedly installed at the top edge of the processing base, and a first electric push rod is fixedly installed on one side of the mounting plate. The output end of the first electric push rod is fixedly connected to the center of one side of the movable base.

[0012] In one possible design, the feeding assembly includes a material pump fixedly mounted on the top of the processing base. The output end of the material pump is connected to the inner wall of the injection trough via a hose. The input end of the material pump is connected to a material tank for storing powdered raw materials via a pipeline. A tank cover is snapped onto the top of the material tank opening. A transmission rod is rotatably mounted on the center of the bottom of the tank cover via a bearing. A spiral stirring blade is welded and fixed on the transmission rod. A drive motor is fixedly mounted on the top of the tank cover. The output shaft of the drive motor passes through the bottom of the tank cover and is fixedly connected to the top of the transmission rod.

[0013] In one possible design, the top component assembly includes a second electric push rod fixedly installed at the bottom of the inner wall of the machining base. The output end of the second electric push rod is fixedly provided with a U-shaped top bracket. The bottom of the inner wall of the lower mold groove is symmetrically provided with through holes for the two top ends of the U-shaped top bracket to slide through. When the second electric push rod is retracted to its maximum extent, the top end of the U-shaped top bracket is flush with the bottom of the inner wall of the lower mold groove. When the second electric push rod is extended to its maximum extent, the top end of the U-shaped top bracket is flush with the surface of the machining base.

[0014] In one possible design, a buffer pad is fixedly provided at the bottom of the inner wall of the U-shaped top frame to reduce noise from its contact with the top of the inner wall of the processing seat.

[0015] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0016] The working principle and usage process of this technical solution are as follows:

[0017] During raw material preparation, the required metal powder materials, such as carbon steel, stainless steel, aluminum alloy, and a certain amount of powder forming additives, are added to the material tank in a certain proportion and the tank lid is closed. After starting the drive motor, the drive motor drives the transmission rod to rotate, which in turn causes the spiral stirring blades to stir the metal powder, ensuring that the powder is evenly mixed, preventing powder agglomeration, and ensuring the subsequent molding quality. During material injection, the first electric push rod is started, which pushes the moving seat to move along the guide slide rail, so that the injection groove at the bottom of the moving seat moves to the top of the lower mold groove. At the same time, the material pump is started, which draws the evenly mixed metal powder from the material tank and delivers the powder to the injection groove through the hose. Then, the injection groove injects the powder into the lower mold groove to complete the injection process. After the injection is completed, the first electric push rod retracts and drives the moving seat to reset.

[0018] Afterwards, the mold is closed and pressed. After the hydraulic station is started, the hydraulic station provides power to the hydraulic cylinder through the oil pipe. The output end of the hydraulic cylinder pushes the upper mold to move downward. The bottom groove of the upper mold engages with the main column and auxiliary column on the lower mold groove to achieve mold closing. Pressure is applied to the metal powder in the lower mold groove to form the center hole and edge reserved hole of the flange, thus forming the shape of the flange. Under pressure, the metal powder is tightly bonded to form a flange blank with a certain strength. After forming, the output end of the hydraulic cylinder drives the upper mold to move upward to achieve mold opening. Then, the second electric push rod is started. The output end of the second electric push rod pushes the U-shaped top frame to move upward. The two top ends of the U-shaped top frame push the formed flange out of the lower mold groove through the through hole to complete the demolding process. Afterwards, the ejected flange blank is subjected to subsequent processing, such as sintering and surface treatment, to obtain the final flange product that meets the requirements.

[0019] This utility model has the following beneficial effects:

[0020] This invention directly uses pressure to form metal powder into perforated flanges, which greatly shortens the forming time and improves production efficiency. Furthermore, after one forming is completed, the next injection and mold closing operations can be carried out quickly, further improving production efficiency.

[0021] This utility model uses a top component assembly and a second electric push rod to push the U-shaped top frame to eject the formed flange from the lower mold groove, making the operation convenient and quick. In addition, the buffer pad set at the bottom of the inner wall of the U-shaped top frame can effectively reduce contact noise and improve the working environment when the U-shaped top frame contacts the top of the inner wall of the processing seat. Attached Figure Description

[0022] Figure 1 A three-dimensional structural schematic diagram of a rapid prototyping flange production mold provided for an embodiment of this utility model;

[0023] Figure 2Another perspective structural schematic diagram of a rapid prototyping flange production mold provided in an embodiment of this utility model;

[0024] Figure 3 A schematic diagram of the material tank and lid separation structure of a rapid prototyping flange production mold provided in this embodiment of the utility model;

[0025] Figure 4 A schematic diagram of the movable seat structure of a rapid prototyping flange production mold provided in this embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of a rapid prototyping flange production mold, which is used in conjunction with a lower mold groove.

[0027] Reference numerals: 1. Machining base; 2. Lower mold groove; 3. Mounting bracket; 4. Hydraulic cylinder; 5. Upper mold; 6. Hydraulic station; 7. Guide slide rail; 8. Moving base; 9. Injection trough; 10. Mounting plate; 11. First electric push rod; 12. Material tank; 13. Material pump; 14. Tank cover; 15. Transmission rod; 16. Spiral stirring blade; 17. Drive motor; 18. Second electric push rod; 19. U-shaped top frame; 20. Buffer pad; 21. Through hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0031] Example 1

[0032] Please refer to Figure 1-5 A production mold, comprising:

[0033] The machining base 1 serves as the basic support structure for the entire mold. Its top is equipped with a lower mold groove 2. The bottom of the inner wall of the lower mold groove 2 is fixedly fitted with a main column for forming the center hole of the flange and multiple auxiliary columns for forming the edge pre-drilled holes of the flange. The positions and dimensions of these main and auxiliary columns are precisely set according to the flange design requirements. An upper mold 5 is positioned directly above the lower mold groove 2. The bottom of the upper mold 5 has a groove for engaging the corresponding main and auxiliary columns on the lower mold groove 2. A mounting bracket 3 is fixedly mounted on the top of the machining base 1. A hydraulic cylinder 4 is fixedly mounted on the top of the mounting bracket 3. The output end of the hydraulic cylinder 4 slides through the inner wall of the mounting bracket 3 and is fixedly connected to the top of the upper mold 5. The hydraulic cylinder 4 is connected to a matching hydraulic station 6 via an oil pipe. Driven by the hydraulic cylinder 4, the upper mold 5 moves downwards to close with the lower mold groove 2. The groove precisely engages with the main and auxiliary columns, ensuring accurate forming of the center hole and edge pre-drilled holes of the flange.

[0034] Two guide rails 7 are symmetrically fixedly installed on the top of the processing base 1. The same movable seat 8 is slidably installed on the two guide rails 7. The movable seat 8 can slide smoothly on the guide rails 7. A material injection groove 9 is provided at its bottom. A mounting plate 10 is fixedly installed at the top edge of the processing base 1. A first electric push rod 11 is fixedly installed on one side of the mounting plate 10. The output end of the first electric push rod 11 is fixedly connected to the center of one side of the movable seat 8. Through the extension and retraction movement of the first electric push rod 11, the movable seat 8 can be pushed to move along the guide rails 7, thereby driving the material injection groove 9 to move on the top of the processing base 1.

[0035] The top of the processing base 1 is also equipped with a feeding assembly, which includes a material pump 13 fixedly installed on the top of the processing base 1. The material pump 13 is preferably a pneumatic diaphragm pump. The pump body is made of duplex stainless steel (such as CD4MCu) instead of traditional stainless steel. When conveying carbon steel / stainless steel / aluminum alloy powder, it has good wear resistance and higher resistance to chloride ion corrosion. The inner wall of the pump body and the surface of the impeller are lined with a 3mm fluoroplastic (F46) layer, which is chemically inert to acid, alkali and salt media, and is especially suitable for complex working conditions containing powder forming additives. The rotor surface is coated with a 0.25mm tungsten carbide (WC-12Co) coating with a hardness of HV1200-1400, which can withstand the continuous erosion of metal powder. The auxiliary sealing ring is made of perfluoroether rubber (FFKM) O-ring, with a working temperature range of -25℃ to 300℃ and resistance to more than 200 kinds of chemical media, which is especially suitable for conveying metal powder containing additives.

[0036] The output end of the material pump 13 is connected to the inner wall of the injection tank 9 via a hose. The input end of the material pump 13 is connected to a material tank 12 for storing powder raw materials via a pipeline. A can lid 14 is snapped onto the top of the can lid 12. A transmission rod 15 is rotatably mounted on the bottom center of the can lid 14 via a bearing. A spiral stirring blade 16 is welded and fixed on the transmission rod 15. A drive motor 17 is fixedly mounted on the top of the can lid 14. The output shaft of the drive motor 17 passes through the bottom of the can lid 14 and is fixedly connected to the top of the transmission rod 15. In the raw material preparation stage, the required metal powder raw materials, such as carbon steel, stainless steel, aluminum alloy, and a certain amount of powder molding additives, are added to the material tank 12 in a certain proportion. The can lid 14 is then closed, and the drive motor 17 is started. The drive motor 17 drives the transmission rod 15 to rotate, thereby causing the spiral stirring blade 16 to stir the metal powder, ensuring uniform mixing of the powder, preventing powder agglomeration, and ensuring the subsequent molding quality.

[0037] A top component assembly is provided on the inner wall of the processing base 1. The top component assembly includes a second electric push rod 18 fixedly installed at the bottom of the inner wall of the processing base 1. A U-shaped top bracket 19 is fixedly installed at the output end of the second electric push rod 18. Through holes 21 are symmetrically provided at the bottom of the inner wall of the lower mold groove 2 for the two top ends of the U-shaped top bracket 19 to slide through. When the second electric push rod 18 is retracted to its maximum extent, the top end of the U-shaped top bracket 19 is flush with the bottom of the inner wall of the lower mold groove 2. When the second electric push rod 18 is extended to its maximum extent, the top end of the U-shaped top bracket 19 is flush with the surface of the processing base 1. When the molding is completed, the second electric push rod 18 is activated. The output end of the second electric push rod 18 pushes the U-shaped top bracket 19 upward. The two top ends of the U-shaped top bracket 19 push the molded flange out of the lower mold groove 2 through the through holes 21, completing the demolding process.

[0038] In actual production, carbon steel / stainless steel / aluminum alloy powder and forming additive (zinc stearate) are added to the material tank 12 in proportion. The drive motor 17 is started to drive the spiral stirring blade 16 to rotate to achieve uniform mixing of powder. During the injection stage, the first electric push rod 11 pushes the moving seat 8 to move along the guide slide rail 7 to the top of the lower mold groove 2. The material pump 13 delivers the mixed powder to the injection tank 9 through the hose. The powder fills the lower mold groove 2 through the bottom opening of the injection tank 9. After the injection is completed, the moving seat 8 is reset. The hydraulic cylinder 4 drives the upper mold 5 to move downward. The groove on the bottom surface of the upper mold 5 fits with the main column and the auxiliary column in the lower mold groove 2 to apply pressure to the powder to form a flange blank. After the mold is opened, the second electric push rod 18 pushes the U-shaped top frame 19 upward and ejects the formed part out of the lower mold groove 2 through the through hole 21. The ejected flange blank can be obtained as a finished product after sintering, machining and other post-processing processes.

[0039] This application can be used for flange production, or for other fields applicable to this application.

[0040] Example 2

[0041] Improvements based on Example 1:

[0042] A rapid prototyping flange production mold, which is used in the field of flange production molds;

[0043] Please refer to Figure 4 A rubber buffer pad 20 is attached and fixed to the bottom of the inner wall of the U-shaped top frame 19. When the U-shaped top frame 19 contacts the top of the inner wall of the processing seat 1, it can effectively reduce contact noise and improve the working environment.

[0044] However, as is well known to those skilled in the art, the working principles and wiring methods of the hydraulic cylinder 4, hydraulic station 6, first electric push rod 11, material pump 13, drive motor 17 and second electric push rod 18 are commonplace and belong to conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0045] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0046] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A rapid prototyping flange production mold, characterized in that, include: A processing base (1) is provided with a lower mold groove (2) at the top of the processing base (1), and an upper mold (5) is provided directly above the lower mold groove (2). Two guide slides (7) are symmetrically fixedly provided on the top of the processing base (1). The same movable base (8) is slidably installed on the two guide slides (7). An injection groove (9) is provided at the bottom of the movable base (8). A feeding assembly is provided on the top of the processing base (1). A top component assembly is provided on the inner wall of the processing base (1).

2. The flange production mold for rapid prototyping according to claim 1, characterized in that, The bottom of the inner wall of the lower mold groove (2) is fixedly provided with a main column for forming the center hole of the flange and a number of secondary columns for forming the pre-drilled holes on the edge of the flange. The bottom of the upper mold (5) is provided with a groove for fitting the corresponding main column and secondary column on the lower mold groove (2).

3. The flange production mold for rapid prototyping according to claim 2, characterized in that, The top of the processing base (1) is fixedly provided with a mounting frame (3), and the top of the mounting frame (3) is fixedly installed with a hydraulic cylinder (4). The output end of the hydraulic cylinder (4) slides through the inner wall of the mounting frame (3) and is fixedly connected to the top of the upper mold (5). The hydraulic cylinder (4) is connected to a matching hydraulic station (6) through an oil pipe.

4. The rapid prototyping flange production mold according to claim 1, characterized in that, A mounting plate (10) is fixedly installed at the top edge of the processing seat (1), and a first electric push rod (11) is fixedly installed on one side of the mounting plate (10). The output end of the first electric push rod (11) is fixedly connected to the center of one side of the movable seat (8).

5. A rapid prototyping flange production mold according to claim 4, characterized in that, The feeding assembly includes a material pump (13) fixedly installed on the top of the processing base (1). The output end of the material pump (13) is connected to the inner wall of the injection tank (9) through a hose. The input end of the material pump (13) is connected to a material tank (12) for storing powder raw materials through a pipeline. A can lid (14) is snapped onto the can opening at the top of the material tank (12). A transmission rod (15) is rotatably installed at the center of the bottom of the can lid (14) through a bearing. A spiral stirring blade (16) is welded and fixed on the transmission rod (15). A drive motor (17) is fixedly installed on the top of the can lid (14). The output shaft of the drive motor (17) passes through the bottom of the can lid (14) and is fixedly connected to the top of the transmission rod (15).

6. The flange production mold for rapid prototyping according to claim 2, characterized in that, The top component assembly includes a second electric push rod (18) fixedly installed at the bottom of the inner wall of the machining base (1). A U-shaped top bracket (19) is fixedly provided at the output end of the second electric push rod (18). The bottom of the inner wall of the lower mold groove (2) is symmetrically provided with through holes (21) for the two top ends of the U-shaped top bracket (19) to slide through. When the second electric push rod (18) is retracted to its maximum extent, the top end of the U-shaped top bracket (19) is flush with the bottom of the inner wall of the lower mold groove (2). When the second electric push rod (18) is extended to its maximum extent, the top end of the U-shaped top bracket (19) is flush with the surface of the machining base (1).

7. A rapid prototyping flange production mold according to claim 6, characterized in that, The bottom of the inner wall of the U-shaped top frame (19) is fixedly provided with a buffer pad (20) to reduce the noise of its contact with the top of the inner wall of the processing seat (1).

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