Casting forming compaction mechanism based on pressure feedback

Abstract

The utility model discloses a casting molding compaction mechanism based on pressure feedback, which comprises a frame and a working plate in bolted connection with the bottom of the frame, the top of the working plate is provided with a molding compaction die, the frame is an L-shaped frame, and the side wall of the frame is in bolted connection with a compaction driving mechanism for driving the molding compaction die to move up and down to realize mold closing compaction. The pressure feedback device is arranged, the pressure sensor is used for detecting the compaction pressure in real time, data are transmitted to the data processing unit to be analyzed and processed, the driving motor can be accurately controlled, real-time adjustment of the compaction pressure is achieved, the problem that a traditional compaction mechanism is not accurate in pressure control is solved, and the compaction efficiency is improved. And the multiple pressure sensors evenly distributed in the compaction mold can comprehensively and accurately detect the pressure, the situation that the compaction effect is not uniform is effectively avoided, and the quality stability of casting forming is improved.

Description

Technical Field

[0001] This utility model relates to the field of casting forming application technology, and in particular to a casting forming compaction mechanism based on pressure feedback. Background Technology

[0002] Casting is a crucial process in modern industrial production for manufacturing parts, widely used in machinery, automotive, aerospace, and many other fields. In the casting production process, the molding stage is a fundamental and critical step, its quality directly affecting the dimensional accuracy, surface quality, and internal structure of the casting. The compaction mechanism, as the core equipment in the molding stage, is mainly used to compact molding materials such as molding sand. By applying pressure, it forces the loose molding sand to form a mold cavity with a certain strength and precision, providing a reliable foundation for subsequent pouring processes. Therefore, the performance of the compaction mechanism plays a decisive role in the casting quality and production efficiency.

[0003] Most existing compaction mechanisms adopt a fixed pressure application mode, lacking a real-time pressure sensing and control mechanism. During the compaction process, they cannot dynamically adjust the pressure according to actual changes in the moisture content, particle size, and filling amount of the molding sand, making it difficult to guarantee the compaction effect. When the molding sand has high moisture content, the same pressure may not achieve the ideal compaction degree; while when the moisture content is low, a fixed pressure may cause the molding sand to be over-compacted, damaging its permeability. In addition, the pressure distribution of traditional compaction mechanisms is uneven, which can easily cause local under-compaction or over-compaction. This not only causes quality defects such as sand holes, porosity, and dimensional deviations in castings, but also increases mold wear, shortens mold life, and increases production costs. At the same time, due to the lack of precise pressure control, a lot of manual adjustment and experience judgment are required during the production process, making it difficult to achieve automated and efficient production, and failing to meet the growing demands of modern industry for casting quality and production efficiency. Therefore, this utility model proposes a casting forming compaction mechanism based on pressure feedback. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a casting forming compaction mechanism based on pressure feedback. By setting up a pressure feedback device, the compaction pressure is detected in real time using pressure sensors, and the data is transmitted to a data processing unit for analysis and processing. This enables precise control of the drive motor and real-time adjustment of the compaction pressure, solving the problem of inaccurate pressure control in traditional compaction mechanisms. This improves the yield and production efficiency of castings. Furthermore, multiple pressure sensors evenly distributed inside the compaction mold can comprehensively and accurately detect the pressure, effectively avoiding uneven compaction and improving the quality stability of the casting.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: providing a casting forming and compaction mechanism based on pressure feedback, including a frame and a working plate bolted to the bottom of the frame, wherein a forming and compaction mold is provided on the top of the working plate;

[0006] The frame is an L-shaped frame, and its side wall is bolted to a compaction drive mechanism that drives the molding compaction mold to move up and down to achieve mold closing and compaction.

[0007] The top of the frame is bolted to a pressure feedback device for monitoring the internal pressure of the molding compaction mold.

[0008] The present invention is further configured such that: the compaction drive mechanism includes a mounting plate bolted to the side wall of the frame, and a stabilizing seat is provided at both ends of the mounting plate. The inner walls of the two stabilizing seats are rotatably connected to a high-precision lead screw through a bearing. One end of the high-precision lead screw is connected to a servo motor through a coupling. The outer wall of the high-precision lead screw is threadedly connected to a nut seat. The forming compaction mold moves up and down on the high-precision lead screw through the nut seat.

[0009] Using the above technical solution, the servo motor is started, and its output shaft drives the high-precision lead screw on the end face to rotate, thereby causing the externally threaded nut seat to move up and down, which in turn drives the upper mold to move.

[0010] The present invention is further configured such that: the two ends of the nut seat are symmetrically bolted to slide blocks, and the two slide blocks are respectively slidably connected to guide rails that are symmetrically bolted to the side wall of the mounting plate.

[0011] The above technical solution facilitates stable up-and-down movement of the nut seat on the guide rail via the slide when driving it, thus improving stability during the compaction process.

[0012] The present invention is further configured such that: the forming and compacting mold includes an upper mold and a lower mold, and the upper mold is installed on the front wall of the nut seat by a connecting bracket connected to its top by bolts.

[0013] The above technical solution facilitates the compaction of the internal casting sand by cooperating with the lower mold when the upper mold is moved, and the connecting frame makes it easy to install and fix the upper mold in position.

[0014] The present invention is further configured such that: the pressure feedback device includes a data processing unit and multiple pressure sensors, all of which are installed on the top of the upper mold, and their detection ends extend through the top of the upper mold to the top of the monitoring connection plate provided inside the upper mold to detect the pressure during the compaction process.

[0015] The above technical solution utilizes multiple evenly spaced pressure sensors to monitor the pressure of the mold plate during the extrusion of molding sand inside the mold in real time. Finally, the data is processed and analyzed by the data processing unit, enabling real-time feedback of the pressure during the compaction process.

[0016] The present invention is further configured such that the data processing unit is electrically connected to multiple pressure sensors and servo motors respectively.

[0017] The above technical solution facilitates the data processing unit to process the pressure monitored by the pressure sensor in real time, and to control the servo motor to drive, stop, or reverse according to the pressure requirements.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The casting forming compaction mechanism based on pressure feedback proposed in this utility model uses a pressure feedback device to detect the compaction pressure in real time by a pressure sensor and transmits the data to a data processing unit for analysis and processing. This enables precise control of the drive motor and real-time adjustment of the compaction pressure, solving the problem of inaccurate pressure control in traditional compaction mechanisms, thereby improving the casting yield and production efficiency.

[0020] 2. The pressure feedback-based casting compaction mechanism proposed in this utility model can comprehensively and accurately detect pressure through multiple pressure sensors evenly distributed inside the compaction mold, effectively avoiding uneven compaction and improving the quality stability of casting. Attached Figure Description

[0021] Figure 1 This is a first structural diagram of the pressure feedback-based casting compaction mechanism of this utility model;

[0022] Figure 2 This is a second structural diagram of the pressure feedback-based casting compaction mechanism of this utility model;

[0023] Figure 3 This is a structural diagram of the compaction drive mechanism in the pressure feedback-based casting compaction mechanism of this utility model;

[0024] Figure 4 This is an exploded view of the upper mold in the pressure feedback-based casting forming and compaction mechanism of this utility model.

[0025] In the diagram: 1. Frame; 2. Working plate; 3. Compaction drive mechanism; 31. Mounting plate; 32. Stabilizing base; 33. High-precision lead screw; 34. Servo motor; 35. Nut seat; 36. Slide; 37. Guide rail; 4. Forming and compaction mold; 41. Upper mold; 411. Monitoring and connecting plate; 42. Lower mold; 43. Connecting frame; 5. Pressure feedback device; 51. Data processing unit; 52. Pressure sensor. Detailed Implementation

[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0027] like Figure 1 As shown, the pressure feedback-based casting molding and compaction mechanism includes a frame 1 and a working plate 2 bolted to the bottom of the frame 1. A molding and compaction mold 4 is provided on the top of the working plate 2. The molding and compaction mold 4 includes an upper mold 41 and a lower mold 42. The upper mold 41 is installed on the front wall of the nut seat 35 through a connecting frame 43 bolted to its top. This allows the upper mold 41 to cooperate with the lower mold 42 at the bottom to compact the internal casting sand when it is driven to move. The connecting frame 43 also facilitates the installation and fixation of the upper mold 41 in position.

[0028] like Figure 2 and Figure 3 As shown, the frame 1 is an L-shaped frame, and its side wall is bolted to a compaction drive mechanism 3 that drives the forming and compacting mold 4 to move up and down to achieve mold closing and compaction. The compaction drive mechanism 3 includes a mounting plate 31 bolted to the side wall of the frame 1. Stabilizing seats 32 are respectively provided at both ends of the mounting plate 31. A high-precision lead screw 33 is rotatably connected to the inner walls of the two stabilizing seats 32 via bearings. One end of the high-precision lead screw 33 is connected to a servo motor 34 via a coupling. A nut seat 35 is threaded onto the outer wall of the high-precision lead screw 33. The forming and compacting mold 4 is mounted on the high-precision mold via the nut seat 35. The screw 33 moves up and down. The nut seat 35 is symmetrically bolted at both ends and has two slides 36. The two slides 36 are slidably connected to the guide rails 37 symmetrically bolted near the side wall of the mounting plate 31. This allows the nut seat 35 to move up and down stably on the guide rails 37 via the slides 36 when driven, improving stability during the compaction process. When the servo motor 34 is started, its output shaft drives the high-precision screw 33 at the end face to rotate, thereby causing the externally threaded nut seat 35 to move up and down, which in turn drives the upper mold 41 to move.

[0029] like Figure 3 and Figure 4As shown, a pressure feedback device 5 for monitoring the internal pressure of the molding and compaction mold 4 is bolted to the top of the frame 1. The pressure feedback device 5 includes a data processing unit 51 and multiple pressure sensors 52. The pressure sensors 52 are Panasonic DP-101 series pressure sensors, which feature fast response speed (response time less than 1ms) and high accuracy (accuracy up to ±0.5%). With the characteristics of high stability, it can work reliably for a long time in complex industrial environments. Multiple pressure sensors 52 are installed on the top of the upper mold 41, and their detection ends extend through the top of the upper mold 41 to the top of the monitoring connecting plate 411 set inside the upper mold 41 to detect the pressure during the compaction process. The pressure of the monitoring connecting plate 411 for molding sand extrusion inside the mold is monitored in real time by multiple evenly arranged pressure sensors 52. Finally, the data is processed and analyzed by the data processing unit 51, which can provide real-time feedback on the pressure during the compaction process. The data processing unit 51 is electrically connected to multiple pressure sensors 52 and servo motor 34, which facilitates the real-time processing of the pressure monitored by the pressure sensors 52 and controls the servo motor 34 to drive, stop or reverse according to the pressure requirements.

[0030] In use, when the operator sets the preset compaction pressure value through the control system and starts the casting forming compaction mechanism based on pressure feedback, the servo motor 34 drives the nut seat 35 on the high-precision lead screw 33 to move, causing the upper mold 41 in the forming compaction mold 4 to move downward along the guide rail 37 to compact the molding sand. At this time, the Panasonic DP-101 series pressure sensors 52, which are evenly distributed inside the upper mold 41, monitor the pressure value in real time and output a weak electrical signal. After being amplified by the signal amplification circuit of the data processing unit 51, the signal is transmitted to the microprocessor. The microprocessor compares the real-time pressure value with the preset value. If the actual pressure value is less than the preset value, it controls the drive motor to accelerate to increase the compaction pressure; otherwise, it controls the deceleration or reversal to reduce the pressure. Through the real-time feedback control cycle between the pressure sensor 52, the data processing unit 51, and the servo motor 34, the compaction pressure is dynamically and accurately adjusted. At the same time, the guide rail 37 ensures the stable movement of the upper mold 41, ultimately ensuring the uniform compaction of the molding sand and improving the casting forming quality and production efficiency.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pressure feedback-based casting forming and compaction mechanism, comprising a frame (1) and a working plate (2) bolted to the bottom of the frame (1), characterized in that: The top of the working plate (2) is provided with a forming and compacting mold (4); The frame (1) is an L-shaped frame, and its side wall is bolted to a compaction drive mechanism (3) that drives the molding compaction mold (4) to move up and down to achieve mold closing and compaction. The top of the frame (1) is bolted to a pressure feedback device (5) for monitoring the internal pressure of the forming and compacting mold (4).

2. The casting compaction mechanism based on pressure feedback according to claim 1, characterized in that: The compaction drive mechanism (3) includes a mounting plate (31) bolted to the side wall of the frame (1). Stabilizing seats (32) are provided at both ends of the mounting plate (31). The inner walls of the two stabilizing seats (32) are rotatably connected to a high-precision lead screw (33) through bearings. One end of the high-precision lead screw (33) is connected to a servo motor (34) through a coupling. The outer wall of the high-precision lead screw (33) is threaded with a nut seat (35). The forming compaction mold (4) moves up and down on the high-precision lead screw (33) through the nut seat (35).

3. The casting compaction mechanism based on pressure feedback according to claim 2, characterized in that: The nut seat (35) is symmetrically bolted to both ends with slides (36), and the two slides (36) are respectively slidably connected to the guide rails (37) symmetrically bolted to the side wall of the mounting plate (31).

4. The casting compaction mechanism based on pressure feedback according to claim 3, characterized in that: The forming and compacting mold (4) includes an upper mold (41) and a lower mold (42). The upper mold (41) is mounted on the front wall of the nut seat (35) by a connecting bracket (43) bolted to its top.

5. The casting compaction mechanism based on pressure feedback according to claim 4, characterized in that: The pressure feedback device (5) includes a data processing unit (51) and multiple pressure sensors (52). The multiple pressure sensors (52) are all installed on the top of the upper mold (41), and their detection ends extend through the top of the upper mold (41) to the top of the monitoring connection plate (411) set inside the upper mold (41) to detect the pressure during the compaction process.

6. The casting compaction mechanism based on pressure feedback according to claim 5, characterized in that: The data processing unit (51) is electrically connected to multiple pressure sensors (52) and servo motors (34).

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