Full-automatic static pressure molding machine capable of automatically feeding

By introducing vibration components and a post-feeding vibration structure into the static pressure molding machine, the problem of uneven sand distribution was solved, and the uniformity, density, and compactness of the molding sand were improved, thereby enhancing the quality and precision of the castings.

CN224128560UActive Publication Date: 2026-04-17JINCHENG CHANGTAI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINCHENG CHANGTAI IND CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing static pressure molding machine lacks a vibration structure after feeding, which leads to uneven distribution of molding sand in the sand box, resulting in local accumulation or insufficient filling, affecting the quality and precision of the sand mold, and thus reducing the quality of the casting.

Method used

A fully automatic static pressure molding machine with automatic feeding was designed. It is equipped with a vibration component and a vibration structure after feeding. The molding sand is gradually compacted and evenly distributed under the action of vibration through the vibration plate and the limiting rod system, so as to avoid local accumulation or insufficient filling.

Benefits of technology

This improves the overall quality and precision of the sand mold, providing a good foundation for subsequent molding and casting production, enhancing the compactness of the molding sand, and ensuring the consistency of casting quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of static pressure molding machines, and provides a full-automatic static pressure molding machine capable of automatically feeding, which comprises a pressure-bearing shell, a plurality of positioning rods are movably embedded in the top of the pressure-bearing shell, the tops of the positioning rods are fixedly connected with a pressure-bearing box, a vibrating plate is arranged on the inner surface of the pressure-bearing shell, and the vibrating plate is fixedly connected with the pressure-bearing box. A plurality of limiting rods are fixedly connected to the top of the vibration plate, force application springs are fixedly connected to the tops of the limiting rods, limiting sleeves are fixedly connected to the tops of the force application springs, and the device is provided with a vibration structure after feeding, so that molding sand in a sand box is gradually compacted and uniformly distributed under the vibration effect, and the molding sand is helped to better flow in and fill; and the condition of local molding sand accumulation or insufficient filling is avoided, so that the overall quality and precision of the sand mold are improved, a good foundation is provided for subsequent molding and casting production, the molding sand is arranged more tightly, and then the compactness of the molding sand is improved.
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Description

Technical Field

[0001] This utility model relates to the field of static pressure molding machine technology, and in particular to a fully automatic static pressure molding machine with automatic feeding capability. Background Technology

[0002] The main uses of static pressure molding machines are as follows: They automate the production of sand molds of various shapes through static pressure processes, achieving high-precision molding of sand molds, reducing casting defects, supporting rapid batch molding, adapting to automated production lines, reducing manual intervention, increasing casting capacity, and being used in processes such as clay sand molding. They can manufacture sand molds with complex cavities and large differences in wall thickness to meet the molding needs of castings with different structures, reduce molding sand loss and the recycling of old sand, and lower material costs. High-precision sand molds reduce the machining allowance of casting blanks, saving machining time and energy.

[0003] However, existing technologies, such as Chinese Publication No. CN2195220419U, "A Fully Automatic Static Pressure Molding Machine," disclose a fully automatic static pressure molding machine, including a base plate, an adjusting frame located above the top of the base plate, and a pressing mechanism located in the middle of the top of the base plate. The base plate includes movable grooves at both ends inside the base plate, and a mounting frame is provided at the bottom of the base plate. Slider blocks are provided at both ends of the bottom of the adjusting frame, and empty grooves are provided on both sides inside the adjusting frame. Limiting grooves are provided at the top of both sides of the two sets of empty grooves. This invention uses a reduction motor to drive a lead screw to rotate. The external thread on the outside of the lead screw and the threaded hole inside the adjusting block cooperate with each other, allowing the adjusting block to move within the movable groove. The adjusting block drives the adjusting frame to move left and right on the top of the base plate. The sliding hole allows the support block and support rod to move. The support block and support rod make the left and right adjustment of the adjusting frame more stable, facilitating the movement of the pressure platform directly under the pressing mechanism, thus improving the molding machine's performance.

[0004] However, this device lacks a vibration structure after loading, which prevents the molding sand in the sand box from gradually compacting and distributing evenly under vibration. This hinders the better flow and filling of the molding sand, leading to localized sand accumulation or insufficient filling. Consequently, the overall quality and precision of the sand mold are reduced, failing to provide a good foundation for subsequent molding and casting production. The sand cannot be arranged more tightly together, further reducing its compactness and potentially causing uneven hardness in the localized areas of the sand mold, thus affecting the quality of the castings. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art, such as the inability of the molding sand in the sand box to gradually compact and evenly distribute under vibration, the inability to help the molding sand flow and fill better, resulting in localized molding sand accumulation or insufficient filling, thereby reducing the overall quality and precision of the sand mold, failing to provide a good foundation for subsequent molding and casting production, and the inability to arrange the sand more tightly together, thus reducing the compactness of the molding sand, which may lead to uneven hardness in the local area of ​​the sand mold and affect the quality of the casting.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a fully automatic static pressure molding machine with automatic feeding capability, comprising a pressure-bearing shell, a plurality of positioning rods movably embedded in the top of the pressure-bearing shell, a pressure box fixedly connected to the top of the plurality of positioning rods, a vibrating plate provided on the inner surface of the pressure-bearing shell, a plurality of limiting rods fixedly connected to the top of the vibrating plate, a force-applying spring fixedly connected to the top of the limiting rod, a limiting sleeve fixedly connected to the top of the force-applying spring, the inner surface of the limiting sleeve movably sleeved on the outer surface of the limiting rod, a main rod fixedly connected to the bottom of the vibrating plate, a vibration component provided on the outer surface of the main rod, the vibrating plate drives the pressure box to vibrate around the positioning rods as the axis through the limiting rods, the force-applying spring and the limiting sleeve, and causes the molding sand in the sand box to gradually compact and evenly distribute under the action of vibration, the force-applying spring can retract after being compressed, preventing the press from applying excessive pressure to the vibrating plate, and instead allowing the pressure-bearing shell and the pressure box to be directly compressed.

[0007] In a preferred embodiment, the vibration assembly includes a stabilizing block, the inner surface of which is movably fitted onto the outer surface of the main rod. A liner is fixedly connected to one side of the stabilizing block, and both sides of the liner are fixedly connected to the inner surface of the pressure shell. The other end of the connecting rod drives the main rod to move inside the stabilizing block.

[0008] In a preferred embodiment, a rotating rod is rotatably connected inside the liner. A crank is fixedly connected to one end of the rotating rod. A connecting rod is rotatably connected to the side of the crank away from the rotating rod. The outer surface of the connecting rod is rotatably connected to the bottom of the main rod. A first mounting sleeve is fixedly connected to the side of the liner away from the crank. A first motor is fixedly embedded in the inner surface of the first mounting sleeve. The output end of the first motor is fixedly connected to one end of the rotating rod. When the first motor is energized, the rotating rod and the crank rotate. When the crank rotates, it drives one end of the connecting rod, and the other end of the connecting rod drives the main rod to move inside the stabilizing block.

[0009] In a preferred embodiment, the vibration assembly further includes a positioning plate, the inner surface of which is movably sleeved on the outer surface of the main rod, and the outer surface of which is fixedly embedded in the inner surface of the pressure shell. Under the limiting effect of the positioning plate on the main rod, it vibrates up and down.

[0010] In a preferred embodiment, a force-bearing plate is fixedly connected to the bottom of the main rod, a return spring is fixedly connected to the top of the force-bearing plate, the top of the return spring is fixedly connected to the bottom of the positioning plate, and a vibration motor is fixedly connected to the bottom of the vibration plate. The return spring on the force-bearing plate can help the vibration plate return to its original position quickly when vibrating.

[0011] In a preferred embodiment, support rods are fixedly connected to both sides of the pressure chamber. A discharge shell is fixedly connected to the end of the two support rods away from the pressure chamber. A damping tube is connected to the bottom of the discharge shell. A damping guide tube is rotatably connected to the outer surface of the damping tube. A handle is fixedly connected to the outer surface of the damping guide tube. The damping guide tube is rotated to the top of the pressure chamber by the handle. Its rotation structure can prevent the damping guide tube from affecting the press's pressure on the raw material.

[0012] In a preferred embodiment, a top plate is fixedly connected to the top of the discharge shell, and a power rod is rotatably connected inside the top plate. A spiral conveyor plate is fixedly sleeved on the outer surface of the power rod. By utilizing the friction of the sand grains themselves and controlling the inner diameter of the damping tube, the sand grains will not flow out when the spiral conveyor plate is not rotating.

[0013] In a preferred embodiment, a second mounting sleeve is fixedly connected to the top of the top plate, and a second motor is fixedly embedded inside the second mounting sleeve. The output end of the second motor is fixedly connected to the top of the power rod. The second motor is fixed above the top plate through the second mounting sleeve. When the second motor is powered on, it will drive the power rod and the spiral transmission plate to rotate.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] This invention features a device with a vibration structure after feeding, which causes the molding sand in the sand box to gradually compact and distribute evenly under vibration. This helps the molding sand to flow in and fill better, avoiding localized sand accumulation or insufficient filling, thereby improving the overall quality and precision of the sand mold. This provides a good foundation for subsequent molding and casting production, and the sand is arranged more tightly together, thus improving the compactness of the molding sand. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a fully automatic static pressure molding machine with automatic feeding capability provided by this utility model;

[0017] Figure 2 A schematic diagram of the bottom structure of a fully automatic static pressure molding machine with automatic feeding capability provided by this utility model;

[0018] Figure 3 A cross-sectional structural diagram of a fully automatic static pressure molding machine with automatic feeding capability provided by this utility model;

[0019] Figure 4 A disassembled cross-sectional structural diagram of a fully automatic static pressure molding machine with automatic feeding capability provided by this utility model;

[0020] Figure 5 This is a disassembled cross-sectional structural diagram of a fully automatic static pressure molding machine with automatic feeding capability provided by this utility model.

[0021] Legend:

[0022] 1. Pressure shell; 2. Positioning rod; 3. Pressure chamber; 4. Vibrating plate; 5. Limiting rod; 6. Force spring; 7. Limiting sleeve; 8. Main rod; 9. Stabilizing block; 10. Liner; 11. Rotating rod; 12. Crank; 13. Connecting rod; 14. First mounting sleeve; 15. First motor; 16. Positioning plate; 17. Force plate; 18. Return spring; 19. Vibrating motor; 20. Support rod; 21. Discharge shell; 22. Damping tube; 23. Damping guide tube; 24. Handle; 25. Top plate; 26. Power rod; 27. Spiral transmission plate; 28. Second mounting sleeve; 29. ​​Second motor. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1, please refer to Figures 1 to 5This utility model provides a technical solution: a fully automatic static pressure molding machine with automatic feeding, including a pressure shell 1. Multiple positioning rods 2 are movably embedded in the top of the pressure shell 1. A pressure box 3 is fixedly connected to the top of the multiple positioning rods 2. A vibrating plate 4 is provided on the inner surface of the pressure shell 1. Multiple limiting rods 5 are fixedly connected to the top of the vibrating plate 4. A force-applying spring 6 is fixedly connected to the top of the limiting rod 5. A limiting sleeve 7 is fixedly connected to the top of the force-applying spring 6. The inner surface of the limiting sleeve 7 is movably sleeved on the outer surface of the limiting rod 5. A main rod 8 is fixedly connected to the bottom of the vibrating plate 4. A vibration assembly is provided on the outer surface of the main rod 8. The vibration assembly includes a stabilizing block 9. The inner surface of the stabilizing block 9 is movably sleeved on the outer surface of the main rod 8. A liner 10 is fixedly connected to one side of the stabilizing block 9. Both sides of the liner 10 are fixedly connected to the inner surface of the pressure shell 1. A rotating rod 11 is rotatably connected inside the liner 10. A crank 12 is fixedly connected to one end of the rotating rod 11. A connecting rod is rotatably connected to the side of the crank 12 away from the rotating rod 11. The outer surface of rod 13 is rotatably connected to the bottom of main rod 8. A first mounting sleeve 14 is fixedly connected to the side of liner 10 away from crank 12. A first motor 15 is fixedly embedded in the inner surface of the first mounting sleeve 14. The output end of the first motor 15 is fixedly connected to one end of rotating rod 11. Support rods 20 are fixedly connected to both sides of pressure chamber 3. A discharge shell 21 is fixedly connected to the end of each support rod 20 away from pressure chamber 3. A damping tube 22 is connected to the bottom of the discharge shell 21. The outer surface of the material discharge shell 21 is rotatably connected to a damping guide tube 23, and a handle 24 is fixedly connected to the outer surface of the damping guide tube 23. The top of the material discharge shell 21 is fixedly connected to a top plate 25, and a power rod 26 is rotatably connected inside the top plate 25. A spiral transmission plate 27 is fixedly sleeved on the outer surface of the power rod 26. A second mounting sleeve 28 is fixedly connected to the top of the top plate 25. A second motor 29 is fixedly embedded inside the second mounting sleeve 28, and the output end of the second motor 29 is fixedly connected to the top of the power rod 26.

[0025] In this embodiment, the pressurized raw material is first placed inside the discharge shell 21, which is fixed above the pressure shell 1 by the support rod 20. Then, the damping guide tube 23 is rotated above the pressure chamber 3 by the handle 24. Its rotation structure can prevent the damping guide tube 23 from affecting the press's pressure on the raw material. Then, the external power supply of the second motor 29 is started. The second motor 29 is fixed above the top plate 25 by the second mounting sleeve 28. After the second motor 29 is powered on, it will drive the power rod 26 and the spiral conveyor plate 27 to rotate. Under the action of the rotating spiral conveyor plate 27, the sand is poured into the pressure chamber 3. By the friction of the sand itself and the control of the inner diameter of the damping tube 22, the sand will not flow out when the spiral conveyor plate 27 is not rotating. Then, the first... An external power source for a motor 15 is provided. The first motor 15 is fixed to one side of the liner 10 via a first mounting sleeve 14. When the first motor 15 is powered on, the rotating rod 11 and crank 12 will rotate. The crank 12 will drive one end of the connecting rod 13 during rotation, and the other end of the connecting rod 13 will drive the main rod 8 to move inside the stabilizing block 9, causing the vibrating plate 4 to vibrate. The vibrating plate 4 will drive the pressure box 3 to vibrate around the positioning rod 2 as the axis through the limiting rod 5, the force spring 6 and the limiting sleeve 7, and cause the molding sand in the sand box to gradually become dense and evenly distributed under the action of vibration. Then, the existing device press will do work to compact the sand particles. The force spring 6 can retract after being compressed to prevent the press from applying too much pressure to the vibrating plate 4, and instead allow the pressure shell 1 and the pressure box 3 to be directly compressed.

[0026] Example 2, please refer to Figures 1 to 5 The vibration assembly also includes a positioning plate 16, the inner surface of which is movably sleeved on the outer surface of the main rod 8, and the outer surface of the positioning plate 16 is fixedly embedded in the inner surface of the pressure shell 1. A force plate 17 is fixedly connected to the bottom of the main rod 8, and a return spring 18 is fixedly connected to the top of the force plate 17. The top of the return spring 18 is fixedly connected to the bottom of the positioning plate 16, and a vibration motor 19 is fixedly connected to the bottom of the vibration plate 4.

[0027] In this embodiment, the vibration of the vibrating plate 4 can also cause the vibration motor 19 to do work. The vibration motor 19 will directly drive the vibrating plate 4 to vibrate, and under the limiting action of the positioning plate 16 on the main rod 8, it will vibrate up and down. The return spring 18 on the force plate 17 can help the vibrating plate 4 to return to its position quickly when it vibrates.

[0028] Working principle: First, the pressurized raw material is placed inside the discharge shell 21, which is fixed above the pressure shell 1 by the support rod 20. Then, the damping guide tube 23 is rotated above the pressure chamber 3 by the handle 24. Its rotation structure can prevent the damping guide tube 23 from affecting the press's pressure on the raw material. Then, the external power supply of the second motor 29 is started. The second motor 29 is fixed above the top plate 25 by the second mounting sleeve 28. After the second motor 29 is powered on, it will drive the power rod 26 and the spiral conveyor plate 27 to rotate. Under the action of the rotating spiral conveyor plate 27, the sand is poured into the pressure chamber 3. Through the friction of the sand itself and the control of the inner diameter of the damping tube 22, the sand will not flow out when the spiral conveyor plate 27 is not rotating. Then, the external power supply of the first motor 15 is started. The first motor 15 is fixed to one side of the liner plate 10 by the first mounting sleeve 14. After the first motor 15 is powered on, The rotating rod 11 and crank 12 rotate. When the crank 12 rotates, it drives one end of the connecting rod 13. The other end of the connecting rod 13 drives the main rod 8 to move inside the stabilizing block 9, causing the vibrating plate 4 to vibrate. The vibrating plate 4 drives the pressure box 3 to vibrate around the positioning rod 2 as the axis through the limiting rod 5, the force spring 6 and the limiting sleeve 7. Under the action of vibration, the molding sand in the sand box gradually becomes dense and evenly distributed. Then, the existing device press does work to compact the sand particles. The force spring 6 can retract after being compressed to prevent the press from applying too much pressure to the vibrating plate 4. Instead, the pressure shell 1 and the pressure box 3 are directly compressed. The vibration of the vibrating plate 4 can also make the vibration motor 19 do work. The vibration motor 19 will directly drive the vibrating plate 4 to vibrate. Under the limiting action of the positioning plate 16 on the main rod 8, it will vibrate up and down. The return spring 18 on the force plate 17 can help the vibrating plate 4 to return to its position quickly when vibrating.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fully automatic static pressure molding machine with automatic feeding capability, comprising a pressure shell (1), characterized in that, The top of the pressure-bearing shell (1) is movably embedded with multiple positioning rods (2), and the top of the multiple positioning rods (2) is fixedly connected to a pressure box (3). The inner surface of the pressure-bearing shell (1) is provided with a vibration plate (4), the top of the vibration plate (4) is fixedly connected with multiple limiting rods (5), the top of the limiting rods (5) is fixedly connected with a force-applying spring (6), the top of the force-applying spring (6) is fixedly connected with a limiting sleeve (7), the inner surface of the limiting sleeve (7) is movably sleeved on the outer surface of the limiting rod (5), the bottom of the vibration plate (4) is fixedly connected with a main rod (8), and the outer surface of the main rod (8) is provided with a vibration assembly.

2. The full-automatic static pressure molding machine capable of automatic feeding according to claim 1, characterized in that: The vibration assembly includes a stabilizing block (9), the inner surface of which is movably sleeved on the outer surface of the main rod (8), a liner (10) is fixedly connected to one side of the stabilizing block (9), and the two sides of the liner (10) are fixedly connected to the inner surface of the pressure shell (1).

3. The full-automatic static pressure molding machine capable of automatic feeding according to claim 2, characterized in that: The liner (10) is rotatably connected to a rotating rod (11), and a crank (12) is fixedly connected to one end of the rotating rod (11). A connecting rod (13) is rotatably connected to the side of the crank (12) away from the rotating rod (11). The outer surface of the connecting rod (13) is rotatably connected to the bottom of the main rod (8). A first mounting sleeve (14) is fixedly connected to the side of the liner (10) away from the crank (12). A first motor (15) is fixedly embedded on the inner surface of the first mounting sleeve (14). The output end of the first motor (15) is fixedly connected to one end of the rotating rod (11).

4. The full-automatic static pressure molding machine capable of automatically feeding according to claim 1, characterized in that: The vibration assembly also includes a positioning plate (16), the inner surface of which is movably sleeved on the outer surface of the main rod (8), and the outer surface of which is fixedly embedded in the inner surface of the pressure shell (1).

5. The full-automatic static pressure molding machine capable of automatic feeding according to claim 4, characterized in that: The bottom of the main rod (8) is fixedly connected to a force plate (17), the top of the force plate (17) is fixedly connected to a return spring (18), the top of the return spring (18) is fixedly connected to the bottom of the positioning plate (16), and the bottom of the vibration plate (4) is fixedly connected to a vibration motor (19).

6. The full-automatic static pressure molding machine capable of automatic feeding according to claim 5, characterized in that: Both sides of the pressure chamber (3) are fixedly connected to support rods (20). The ends of the two support rods (20) away from the pressure chamber (3) are fixedly connected to discharge shells (21). The bottom of the discharge shells (21) is connected to a damping tube (22). The outer surface of the damping tube (22) is rotatably connected to a damping guide tube (23). The outer surface of the damping guide tube (23) is fixedly connected to a handle (24).

7. The full-automatic static pressure molding machine capable of automatic feeding according to claim 6, characterized in that: The top of the feeding shell (21) is fixedly connected to a top plate (25), and a power rod (26) is rotatably connected inside the top plate (25). A spiral transmission plate (27) is fixedly sleeved on the outer surface of the power rod (26).

8. The fully automatic static pressure molding machine with automatic feeding capability according to claim 7, characterized in that: The top of the top plate (25) is fixedly connected to a second mounting sleeve (28), and a second motor (29) is fixedly embedded inside the second mounting sleeve (28). The output end of the second motor (29) is fixedly connected to the top of the power rod (26).