Box pressing system

Abstract

A box pressing system belongs to the technical field of casting, is used for solving the problems of high labor intensity and low operation efficiency of box pressing iron box pressing operators, and comprises a frame, a lifting device and a transverse moving device, the lifting device and the transverse moving device are arranged on the frame, and the lifting device is arranged below the transverse moving device; the lifting device is provided with a box pressing piece, and the pressing of the mold core bag is realized by lifting the box pressing piece; and the transverse moving device is used for realizing the movement of the mold core bag in the horizontal direction so as to ensure the accuracy of the position of the box pressing. According to the utility model, the all-directional automatic box pressing of the mold core bag is realized through automatic transfer, automatic conveying, automatic positioning and automatic pressing.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a pressing box device. Background Technology

[0002] In traditional sand casting, the application of ballast iron is a crucial process step to ensure the quality of casting. During the pouring of molten metal, the dynamic buoyancy generated by the high-temperature molten metal can reach several tons. If the upper box is not effectively secured, misalignment of the parting surface may occur, leading to "fire escape." As a gravity restraint device, the ballast iron's structural design must meet static balance requirements: it is typically a monolithic structure made of cast steel, with a single piece weighing between 300-2000 kg based on the projected area of ​​the casting. Anti-slip textures are provided on the bottom to increase the friction coefficient of the contact surface. In actual production, workers need to use a crane with specialized lifting equipment to position and install the ballast iron. The ballast iron placement for a single casting accounts for approximately 15%-20% of the overall process time.

[0003] It is worth noting that traditional mold pressing processes suffer from multiple technical bottlenecks. Firstly, there are the issues of labor intensity and safety risks. When manually handling 2-ton mold pressing iron, the instantaneous load on the lumbar spine exceeds the NIOSH safety limit of 3400N by 2.3 times, resulting in an occupational injury rate as high as 0.8 injuries per thousand man-hours. Secondly, there are issues with process adaptability. Irregularly shaped castings require custom-made mold pressing iron, resulting in a material utilization rate of less than 60%, increasing the cost per ton of steel by approximately 120 yuan. Thirdly, there are difficulties in quality control. On-site workers adjust the mold pressing position based on experience, which can easily lead to localized pressure concentration and molding sand collapse. Statistics show that the scrap rate resulting from this is approximately 3.5%.

[0004] Currently, most semi-automatic pressing boxes utilize hydraulic lifting auxiliary systems. While this reduces the single lifting time to 8 minutes (compared to 15 minutes traditionally), manual three-dimensional spatial positioning is still required. A German company has developed an intelligent pressing box system that achieves three-dimensional laser scanning positioning with an accuracy of ±1.5mm; however, the equipment investment cost exceeds 5 million yuan, limiting its application to small and medium-sized enterprises. It is worth noting that a new modular pressing box technology is emerging, employing a standardized unit combination design and a magnetic quick-locking device, which increases the efficiency of pressing box iron replacement by 40% and reduces material costs by 35%. Summary of the Invention

[0005] In view of the problems mentioned above, such as high labor intensity and low work efficiency of the pressing operation using pressing iron, and high cost and positioning difficulty of semi-automatic pressing device, it is necessary to propose a pressing system to realize the fully automatic pressing operation of casting.

[0006] A pressure chamber system includes a frame, a lifting device, and a traversing device, wherein the lifting device and the traversing device are both disposed on the frame, and the lifting device is disposed below the traversing device;

[0007] The lifting device is equipped with a pressure box component, which is used to press the core package by lifting the pressure box component.

[0008] The lateral movement device is used to move the core package in the horizontal direction to ensure the accurate positioning of the pressure box.

[0009] Furthermore, the frame includes several columns, several bottom crossbeams, several middle crossbeams, and several top crossbeams. By setting bottom crossbeams, middle crossbeams, and top crossbeams between pairs of adjacent columns, the overall strength and stability of the frame are improved, giving the frame a good load-bearing capacity.

[0010] Furthermore, the lifting device includes a driving component, a pressure box component, and a guide rail; the guide rail stands side by side on the inner side of the column, and the pressure box component is slidably connected to the guide rail; one end of the driving component is set on the bottom crossbeam, and the other end is set on the pressure box component, so as to realize the lifting and lowering movement of the pressure box component in the vertical direction.

[0011] Furthermore, the transverse movement device includes a roller conveyor, which is disposed on the middle crossbeam to move the position of the core package in the horizontal direction, so as to ensure that the lifting device can press firmly at the set position and ensure the pressing effect.

[0012] Furthermore, the pressure chamber system also includes a control component, and the lifting device and the traversing device are both electrically connected to the control component to realize the transmission of information among the three.

[0013] Note: The core bag is a sand box bag assembled from sand molds or molding materials, sand cores, and sand boxes, used to form the complete outline of the casting before pouring.

[0014] The beneficial effects of this utility model technical solution are as follows: Through the above technical solution, the core package is automatically transferred, conveyed, positioned and pressed in an all-round automated pressing mechanism. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a pressure box system in one implementation method;

[0016] Among them, 1-frame; 101-column; 102-bottom crossbeam; 103-middle crossbeam; 104-top crossbeam; 2-lifting device; 201 driving component; 202-pressing box component; 2021-slider; 2022-slider connector; 2023-pressing box side beam; 2024-pressing box crossbeam; 2025-pressing box sliding sleeve; 203-guide rail; 3-transverse movement device. Detailed Implementation

[0017] To more clearly illustrate the technical solution of this utility model, the technical solution of the invention will be described in detail with reference to the accompanying drawings. Obviously, the following description is some typical embodiments of this utility model. For those skilled in the art, other solutions can be obtained based on these embodiments without creative effort.

[0018] This utility model aims to solve the problems of low efficiency and high labor intensity in pressing iron boxes.

[0019] In one embodiment, the pressure box system includes a frame 1, a lifting device 2, and a transverse moving device 3. The lifting device 2 and the transverse moving device 3 are both disposed on the frame 1, and the lifting device 2 is disposed below the transverse moving device 3.

[0020] The lifting device 2 is equipped with a pressure box 203, which is used to press the core package by lifting the pressure box 203.

[0021] The lateral movement device 3 is used to move the core package in the horizontal direction to ensure the accuracy of the pressure box position.

[0022] In this embodiment, the frame 1 includes four uprights 101, four bottom crossbeams 102, four middle crossbeams 103, and four top crossbeams 104. By setting the bottom crossbeams 102, middle crossbeams 103, and top crossbeams 104 between adjacent uprights 101, the overall strength and stability of the frame 1 are improved, giving the frame 1 a good load-bearing capacity.

[0023] In this embodiment, the lifting device 2 includes a driving component 201, a pressure box component 203, and a guide rail 203. The guide rail 203 stands parallel to the inner side of the column 101, and the pressure box component 203 is slidably connected to the guide rail 203. One end of the driving component 201 is disposed on the bottom crossbeam 102, and the other end is disposed on the pressure box component 203, thereby realizing the vertical lifting movement of the pressure box component 203. More specifically, for ease of installation, each guide rail 203 standing parallel to the column 101 shares the same base pad with the column 101 as a foundation for fixing to the ground, and the guide rail 203 is disposed inside the working space of the frame 1 to facilitate connection with the pressure box component 203, that is, the pressure box component 203 is placed within the working space.

[0024] As a further supplement to this embodiment, the bottom crossbeam 102 is arranged between the two guide rails 203, so that the driving member 201 can correspond to the pressing box member 203, and the pressing box member 203 can be lifted in the vertical plane.

[0025] As a further supplement to this embodiment, the driving component 201 is a hydraulic cylinder, one end of which is disposed in the middle of the bottom crossbeam 102, and the other end of which is disposed on the pressure box component 203, thereby realizing the lifting and lowering of the pressure box component 203.

[0026] As a further supplement to this embodiment, the pressing box component 203 includes a slider 2021, a slider connector 2022, a pressing box side beam 2023, a pressing box cross beam 2024, and a pressing box sliding sleeve 2025. The slider 2021 is engaged in the guide rail 203, allowing the pressing box component 203 to reciprocate up and down in the vertical plane along the guide rail 203. The slider 2021 is also connected to the slider connector 2022, which connects the slider 2021 to the pressing box side beam 2023. The pressing box side beam 2023 is arranged parallel to the middle cross beam 103. The pressing box cross beam 2024 is connected to the pressing box side beam 2023 through the pressing box sliding sleeve 2025, allowing the pressing box cross beam 2024 to reciprocate along the pressing box side beam 2023. More preferably, a pulley is provided between the pressure box sliding sleeve 2025 and the pressure box side beam 2023, which facilitates the position adjustment of the pressure box cross beam 2024.

[0027] In this embodiment, the transverse movement device 3 includes a roller conveyor, which is mounted on the central crossbeam 103 to move the core package position horizontally, ensuring that the lifting device 2 can press it firmly at the set position and guarantee the pressing effect. Specifically, the roller conveyor is mounted on the central crossbeam 103 to receive the core package and perform large-distance position adjustments.

[0028] Another implementation, such as Figure 1 As shown, Figure 1 In one embodiment, two sets of the pressure box system are connected in series. Specifically, the two sets of pressure box systems are connected in series by a transverse moving device 3.

[0029] In another embodiment, the two pressing boxes are connected in series by a bottom crossbeam 102 and a middle crossbeam 103. In order to ensure the stability of the entire working space after the series connection, a reinforcing rib is provided between the middle crossbeam 103 and the column 101. Specifically, four oblique reinforcing ribs are provided. The transverse moving device 3 of the roller conveyor runs through the two pressing boxes, forming a pressing box system group, which improves the pressing and casting efficiency of the core package.

[0030] As a supplement to this embodiment, in order to ensure that the pressure box 203 can move stably in the vertical plane, a driving member 201 is provided in the middle of each pressure box side beam 2023 of the pressure box 203, and all the driving members 201 share a hydraulic driving source. Each driving member 201 is connected to the hydraulic driving source through a pipe. In the case of symmetrical arrangement, each driving member 201 can receive power at the same time, thereby further ensuring the synchronization of driving force.

[0031] As a supplement to this embodiment, a connecting rod is also provided between the pressure box sliding sleeve 2025 and the pressure box crossbeam 2024, so that there is a certain distance between the pressure box crossbeam 2024 and the pressure box side beam 2023, which further facilitates the operation of the pressure box and the tightness of the pressure box.

[0032] As a supplement to this embodiment, the pressing system also includes a control component, and the drive component 201 is connected to the control component. The control component sends a pressing command to the drive component 201, and the drive component 201 presses the core package according to the received pressing command to meet the pressing requirements of casting.

[0033] As a supplement to this embodiment, the clamping command includes clamping pressure, and the hydraulic drive source outputs hydraulic pressure according to the received clamping pressure, thereby ensuring that the pressure box beam 2024 can obtain a balanced and specified pressure. Specifically, for different core packages, the control component generates clamping pressure according to the pressure box pressure given in the casting process, and outputs hydraulic pressure equivalent to the clamping pressure to the drive component 201.

[0034] As a supplement to this embodiment, the pressure box crossbeam 2024 and the connecting rod casting are bolted together. When the pressure box crossbeam 2024 is damaged by molten metal due to repeated use, the pressure box crossbeam 2024 can be easily replaced, thereby effectively improving the overall service life of the pressure box system.

[0035] As a supplement to this embodiment, to improve the automation level of the pressing box system, the pressing box sliding sleeve 2025 is also equipped with a synchronous motor. The four pressing box sliding sleeves 2025 are driven by one synchronous motor, thereby avoiding the need for operators to manually adjust the position of the pressing box crossbeam 2024 within a small range. More preferably, the synchronous motor is electrically connected to the control unit. By controlling the synchronous motor, the pressing box crossbeam 2024 can be easily driven to move within a small range, achieving precise adjustment of the pressing box position.

[0036] As a supplement to this embodiment, the pressing box system also includes a positioning mechanism, which includes a position sensor and a position clamp. When the position sensor sends a positioning signal, the transverse moving device 3 stops, and at the same time the position clamp rises to prevent the core package from sliding on the transverse moving device 3.

[0037] In another embodiment, the operation process of the pressure chamber system includes,

[0038] First, raise the pressure box 203 to its highest position;

[0039] The second step is to place the core package on a tray and transport it to the inlet of the pressing system by a conveying device;

[0040] The third step involves the transverse transfer device 3 roller conveyor receiving the core package from the conveyor roller conveyor.

[0041] Fourth step: When the core package moves to the given position, the position sensor sends an arrival signal, and the position clamp fixes the position of the core package;

[0042] Fifth step: The control unit delivers hydraulic pressure to the drive unit 201 according to the pressure chamber pressure given by the process. The drive unit 201 pulls down the pressure chamber 203 until the clamping pressure meets the process requirements.

[0043] Step 6: After the pouring is completed, the control system starts timing. When the cooling time meets the time given by the process, the control unit issues a release box command, the hydraulic drive source withdraws the hydraulic pressure, and the drive unit 201 pushes the pressure box 203 upward.

[0044] Step 7: The transverse transfer device 3 outputs the condensed and qualified core package, and the conveying equipment transfers the condensed and qualified core package to the cooling area.

[0045] The implementation of this technical solution has enabled fully automated pressing of the core package to be cast. From receiving to delivery, it has achieved full automation, reduced the labor intensity of operators, improved work efficiency, and prevented possible human error.

[0046] The above embodiments are merely descriptions of a typical application of the technical solution of this utility model. Reasonable extensions can be made without requiring creative effort.

Claims

1. A pressure chamber system, characterized in that, It includes a frame (1), a lifting device (2) and a transverse device (3), both of which are mounted on the frame (1), and the lifting device (2) is mounted below the transverse device (3); The lifting device (2) is equipped with a pressure box (202), and the core package is pressed by lifting the pressure box (202); The transverse movement device (3) is used to move the core package in the horizontal direction to ensure the accuracy of the pressure box position.

2. The pressure chamber system as described in claim 1, characterized in that, The frame (1) includes several columns (101), several bottom crossbeams (102), several middle crossbeams (103) and several top crossbeams (104), which are provided between adjacent columns (101).

3. The pressure chamber system as described in claim 2, characterized in that, The lifting device (2) includes a driving component (201), a pressure box component (202), and a guide rail (203); the guide rail (203) stands side by side on the inner side of the column (101), and the pressure box component (202) is slidably connected to the guide rail (203); one end of the driving component (201) is set on the bottom crossbeam (102), and the other end is set on the pressure box component (202), so as to realize the lifting and lowering movement of the pressure box component (202) in the vertical direction.

4. The pressure chamber system as described in claim 2, characterized in that, The transverse movement device (3) includes a roller conveyor, which is disposed on the middle crossbeam (103) for moving the core package position in the horizontal direction.

5. The pressure chamber system as described in claim 3, characterized in that, The guide rail (203) and the column (101) share a base pad.

6. The pressure chamber system as described in claim 3, characterized in that, The bottom crossbeam (102) is disposed between two adjacent guide rails (203), and one end of the driving member (201) is disposed on the bottom crossbeam (102).

7. The pressure chamber system as described in claim 3, characterized in that, The pressure box component (202) includes a slider (2021), a slider connector (2022), a pressure box side beam (2023), a pressure box cross beam (2024), and a pressure box sliding sleeve (2025). The slider (2021) is engaged in the guide rail (203), allowing the pressure box component (202) to reciprocate up and down along the guide rail (203) in a vertical plane. The slider (2021) is also connected to the slider connector (2022). The slider connector (2022) is used to connect the slider (2021) and the pressure box side beam (2023). The pressure box side beam (2023) is arranged parallel to the middle cross beam (103). The pressure box cross beam (2024) and the pressure box side beam (2023) are connected by the pressure box sliding sleeve (2025), so that the pressure box cross beam (2024) can reciprocate along the pressure box side beam (2023).

8. The pressure chamber system as described in claim 7, characterized in that, A drive member (201) is provided in the middle of each of the pressure box side beams (2023) of the pressure box member (202).

9. The pressure chamber system as described in claim 2, characterized in that, The transverse movement device (3) includes a roller conveyor, on which the middle crossbeam (103) is arranged to move the position of the core package in the horizontal direction.

10. The pressure chamber system as described in claim 1, characterized in that, The pressure box system also includes a control component. The lifting device (2) and the transverse device (3) are both electrically connected to the control component to realize the transmission of information among the three.

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