RGV device

Abstract

The present application relates to the technical field of foundry automation equipment, and particularly relates to a vehicle-mounted sand mold pouring RGV device integrated with a box pressing function. In view of the problems of low automation degree, prominent safety risks, and uncontrolled and unadjustable sand core pressing force in the prior art, the vehicle-mounted sand mold pouring RGV device integrated with the box pressing function is provided. The pressing, stabilization, bearing, and transfer of the sand mold are integrated, so that the sand mold is always in a stable and controlled environment from the time when the mold is closed to the time when pouring is completed, thereby improving the casting quality, production safety, and efficiency. Through whole-process pressing and accurate positioning, the problem of "lifting the box to run the fire" is fundamentally solved, and the automatic box pressing replaces manual carrying and pressing of iron, thereby eliminating major safety hazards.

Description

Technical Field

[0001] This invention relates to the field of casting automation equipment technology, and in particular to a vehicle-mounted sand casting RGV equipment with integrated pressure box function. Background Technology

[0002] During the pouring process, the static pressure and buoyancy generated by the molten metal create a continuous lifting force on the upper mold, which can easily lead to the separation of the upper and lower molds and leakage of molten metal from the parting surface (commonly known as "fire run"). This not only causes the casting to be scrapped but also poses serious safety hazards. To suppress mold lifting, the industry still generally uses the traditional method of manually placing the pressure iron. However, this method has the following significant drawbacks: First, it has a low degree of automation, relying entirely on manual handling and placement, resulting in low production efficiency and high labor intensity for workers. Second, it poses significant safety risks, as operators need to handle heavy pressure irons at close range in high-temperature and high-risk pouring areas, which can easily lead to accidents such as crushing and burning injuries. Third, the clamping force is coarse and cannot be adjusted. Because the weight of the pressure iron is fixed, it cannot be precisely adapted according to the structural characteristics of different castings, cavity pressure, and pouring process parameters, which can easily lead to insufficient clamping force causing fire run or excessive clamping force damaging the sand mold. In addition, this method leads to a fragmented production process, with the press iron repeatedly flowing between processes such as molding, box assembly, casting, and cooling. The logistics path is complex and the operation rhythm is slow, which often becomes a bottleneck restricting the overall production efficiency and intelligent upgrading. Summary of the Invention

[0003] To address the problems of low automation, significant safety risks, and unadjustable and coarse control of sand core clamping force in existing technologies, this invention provides a vehicle-mounted sand casting RGV device with an integrated pressure box function. The objective is achieved as follows: the RGV device includes a frame component, a moving component, a conveying component, and a lifting pressure box component. The frame component supports the RGV device, the moving component moves the RGV device, the conveying component is mounted on the frame component, and the lifting pressure box component lifts and lowers the workpiece.

[0004] In one embodiment, the frame component is a rectangular frame structure welded from high-strength steel. The frame includes two parallel main longitudinal beams and multiple cross beams fixedly connected between the two main longitudinal beams, thereby forming a stable basic frame.

[0005] In one embodiment, the moving component includes a drive motor, a first reducer, a transmission shaft, two sets of driving wheels, two sets of driven wheels, a drive mounting plate, two sets of driving wheel brackets, and two sets of driven wheel brackets.

[0006] In one embodiment, the conveying component is integrally mounted on the frame and includes: a conveying motor, a motor mounting plate, a second reducer, a first driving sprocket, a first driven sprocket, a drive chain, a transmission shaft, a conveying chain, a second driving sprocket, a second driven sprocket, a tensioning assembly, a support frame, a stabilizing beam, a side guide plate, and bearings.

[0007] In one embodiment, the lifting pressure box component includes a pressure box mechanism and a lifting mechanism, wherein the pressure box mechanism includes a column, a top crossbeam, a middle crossbeam, a guide rail, a slider, a rack, a box base, a servo motor, a gear, a pressure box beam support rod, and a pressure box beam.

[0008] The operation method of the RGV device includes the following steps: S1: The intelligent unit issues a core casting instruction. After receiving the instruction, the automated warehouse management system dispatches the stacker crane to transport the assembled sand core and pallet to the exit roller conveyor position and enter the waiting-to-go state. S2: After the sand core and pallet are in place at the outlet, the RGV dispatching system automatically sends a dispatching instruction to the RGV equipment, and the RGV equipment transfers the sand core and pallet. S3: The RGV equipment automatically travels along the preset track to the pouring waiting area. At the same time, the pressure box beam is precisely positioned to the preset pressure box position under the drive of the motor. Then the sand core tray is steadily lifted until the upper part of the sand core is in full contact with the pressure box beam and the predetermined clamping force is reached. S4: After the pressing operation is completed, the RGV equipment enters the casting area for casting. After casting is completed, the RGV equipment transfers the core package component to the automated warehouse entrance and then returns autonomously to the receiving waiting area to start a new round of operation.

[0009] In one embodiment, a pressure sensor is provided on the pressure box beam. When the pressure sensor senses pressure, it transmits a signal to the lifting motor, causing the lifting motor to stop rising.

[0010] In one embodiment, the preset pressure box position is sent from the intelligent unit to the RGV scheduling system according to the shape of the sand core, and then sent from the RGV scheduling system to the RGV equipment for execution.

[0011] This invention discloses a vehicle-mounted sand mold casting RGV equipment with integrated mold clamping function. It integrates sand mold clamping, stabilization, load-bearing, and transportation into one unit, ensuring that the sand mold remains in a stable and controlled environment throughout the entire process from mold closing to casting completion, thereby improving casting quality, production safety, and efficiency. Through full-process clamping and precise positioning, it fundamentally solves the problem of "fire escape during mold lifting" and automates the replacement of manual handling of the clamping iron with automated mold clamping, eliminating major safety hazards. Furthermore, by combining the mold clamping, transportation, and casting processes into one, it greatly shortens the production cycle, reduces work-in-process inventory, and each RGV is an independent unit that can be programmed to adapt to different products (different clamping forces and casting parameters), making it ideal for flexible production. Attached Figure Description

[0012] Appendix Figure 1 Schematic diagram of pressure vessel casting; Appendix Figure 2 : Schematic diagram of AGV system structure; Appendix Figure 3 Schematic diagram of the moving component structure; Appendix Figure 4 Schematic diagram of the conveying component structure Figure 1 ; Appendix Figure 5 Schematic diagram of the conveying component structure Figure 2 ; Appendix Figure 6 Schematic diagram of the structure of the booster box components Figure 1 ; Appendix Figure 7 Schematic diagram of the structure of the top-lifting pressure box components Figure 2 ; Appendix Figure 8 Schematic diagram of the structure of the top-lifting pressure box components Figure 3 ; 1-Frame, 101-Main longitudinal beam, 102-Crossbeam, 2-Moving component, 201-Drive motor, 202-First reducer, 203-Drive shaft, 204-Drive wheel, 205-Driven wheel, 206-Drive mounting plate, 207-Drive wheel bracket, 208-Driven wheel bracket, 3-Conveying component, 301-Conveying motor, 302-Motor mounting plate, 303-Second reducer, 304-First drive sprocket, 305-First driven sprocket, 306-Drive chain, 307-Drive shaft, 308- Conveyor chain, 309-Second driving sprocket, 310-Second driven sprocket, 311-Tensioning assembly, 312-Support frame, 313-Stabilizing beam, 314-Side guide plate, 315-Bearing, 4-Lifting pressure box component, 401-Column, 402-Top crossbeam, 403-Intermediate crossbeam, 404-Guide rail, 405-Slider, 406-Rack, 407-Box base, 408-Servo motor, 409-Gear, 410-Pressure box beam support rod, 411-Pressure box beam, 412-Lifting motor, 413-Lifting platform. Detailed Implementation

[0013] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0015] The RGV equipment includes a frame component 1, a moving component 2, a conveying component 3, and a lifting pressure box component 4. The frame component 1 supports the RGV equipment, the moving component 2 moves the RGV equipment, the conveying component is mounted on the frame component 1, and the lifting pressure box component 4 is used to lift and lower the workpiece.

[0016] The frame component is a rectangular frame structure welded from high-strength steel. The frame 1 includes two parallel main longitudinal beams 101 and multiple cross beams 102 fixedly connected between the two main longitudinal beams 101, thus forming a stable basic frame.

[0017] The moving component 2 includes: a drive motor 201, a first reducer 202, a transmission shaft 203, two sets of driving wheels 204, two sets of driven wheels 205, a drive mounting plate 206, two sets of driving wheel brackets 207, and two sets of driven wheel brackets 208. The drive motor 201 is fixed to the bottom of the frame 1 via a drive mounting plate 206. The input end of the first reducer 202 is coaxially connected to the output shaft of the drive motor 201 via a set screw or flange stop, and its output end is used to connect to the transmission shaft 203. The transmission shaft 203 is connected to the two sets of driving wheels 204. The two sets of driving wheel brackets 207 and the two sets of driven wheel brackets 208 are fixed to the bottom of the frame 1. The two sets of driving wheels 204 and the two sets of driven wheels 205 are respectively mounted on the two sets of driving wheel brackets 207 and the two sets of driven wheel brackets 208.

[0018] The conveying component 3 is integrally mounted on the frame 1 and includes: a conveying motor 301, a motor mounting plate 302, a second reducer 303, a first driving sprocket 304, a first driven sprocket 305, a drive chain 306, a transmission shaft 307, a conveying chain 308, a second driving sprocket 309, a second driven sprocket 310, a tensioning assembly 311, a support frame 312, a stabilizing beam 313, a side guide plate 314, and a bearing 315. The conveying motor 301 is fixed to the frame 1 via the motor mounting plate 302. The input end of the second reducer 303 is coaxially connected to the output shaft of the drive motor 301 via a set screw or a flange stop, and its output end is fixed. There is a first drive sprocket 304; the drive shaft 307 is supported on the support frame 312 by two seated bearings 315, and two sets of second drive sprockets 309 are installed at both ends of the drive shaft 307. A first driven sprocket 305 is installed at the end of the drive shaft 307 near the conveyor motor 301. A drive chain 306 is sleeved between the first drive sprocket 304 and the first driven sprocket 305 to transmit power from the conveyor motor 301 to the two sets of second drive sprockets 309 at both ends of the drive shaft 307; the conveyor chain 308 is a double-pitch roller chain, which is respectively sleeved on the corresponding second driven sprocket 310 and the second drive sprocket 309 to form a closed annular transmission circuit. The tensioning component 311 is used to adjust the tension of the conveyor chain 308 to ensure the smoothness and reliability of the transmission; the two sets of support frames 312 are installed on the frame 1; multiple sets of stabilizing beams 313 are fixed between the two sets of support frames 312; the two sets of side guide plates 314 are respectively fixed on both sides of the two sets of support frames 312.

[0019] The lifting pressure box component 4 includes a pressure box mechanism and a lifting mechanism. The pressure box mechanism includes: columns 401, top crossbeam 402, middle crossbeam 403, guide rails 404, sliders 405, racks 406, box base 407, servo motor 408, gears 409, pressure box beam support rods 410, and pressure box beam 411. The lifting mechanism includes: a lifting motor 412 and a lifting platform 413. The four columns 401 are fixed to two main longitudinal beams 101 and, together with the two sets of top crossbeams 402, form two stable gantry frames. A middle crossbeam 403 is fixed in the middle of the gantry frames to reinforce the frame structure. The two sets of guide rails 404 are respectively fixed to the bottom of the two sets of top crossbeams 402, and two sliders 405 are installed on each guide rail and then slide on the rail. The two sets of racks 406 are... The four sets of box seats 407 are fixed to the front ends of the two sets of top crossbeams 402; the bottom of the inner cavity of the four sets of box seats 407 are respectively fixed to the four sets of sliders 405, and can move with the sliders. The overall structure is a box-shaped structure; the four sets of servo motors 408 are respectively fixed to the front ends of the four sets of box seats 407, and gears 409 are installed at the ends of the motor shafts. The gears 409 mesh with the racks 406, which can realize the back-and-forth movement of the box seats 407 on the top crossbeams 402; the four sets of pressure box beam support rods 410 are respectively fixed to the top ends of the four sets of box seats 407; the two sets of pressure box beams 411 are respectively fixed to the upper ends of the four sets of pressure box beam support rods 410 and connected in pairs; the four lifting motors 412 are fixed to the stabilizing beams 313; the bottom end of the lifting platform 413 is fixed to the top end of the lead screw of the four lifting motors 412 by bolts.

[0020] The pressure casting process based on the above equipment is as follows: S1: The intelligent unit issues a core casting instruction. After receiving the instruction, the automated warehouse management system dispatches the stacker crane to transport the assembled sand core and matching pallet to the exit roller conveyor position, and enters the waiting-to-go state. S2: After the sand core and pallet are in place at the outlet, the RGV scheduling system automatically sends a scheduling instruction to the RGV equipment. After receiving the instruction, the RGV equipment quickly moves to the outlet, seamlessly connects with the roller conveyor system, and smoothly transfers the sand core and pallet to the special transport trolley through the integrated chain conveyor mechanism. S3: After the trolley completes receiving the goods, it automatically travels along the preset track to the pouring waiting area. At the same time, the pressure box beam is precisely positioned to the preset pressure box position under the drive of the motor. The preset pressure box position is issued by the intelligent unit to the RGV scheduling system according to the shape of the sand core, and then issued by the RGV scheduling system to the RGV equipment for execution. Subsequently, the lifting motor starts, driving the sand core tray to rise smoothly until the upper part of the sand core is in full contact with the pressure box beam and the predetermined clamping force is reached. The pressure box beam is equipped with a pressure sensor. When the pressure sensor senses pressure, it transmits a signal to the lifting motor, causing the lifting motor to stop rising, and the pressure box process is successfully completed. S4: After the pressing operation is completed, the trolley automatically enters the casting area, where a high-precision automatic casting machine performs the casting operation. After casting, the core package component undergoes natural stabilization in the static area for a specified period. Subsequently, the RGV equipment transfers the core package component to the automated warehouse inlet for cooling, while the trolley autonomously returns to the receiving waiting area to begin a new round of operation.

[0021] This invention discloses a vehicle-mounted sand casting RGV equipment with integrated pressing function. Through full-process pressing and precise positioning, it fundamentally solves the problem of "fire escape during mold lifting" and automates the pressing process, replacing manual handling of the pressing iron and eliminating major safety hazards. Furthermore, by combining the pressing, transportation, and casting processes into one, it greatly shortens the production cycle, reduces work-in-process inventory, and each RGV is an independent unit that can be programmed to adapt to different products (different pressing forces and casting parameters), making it ideal for flexible production.

[0022] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0024] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An RGV device, characterized in that, The RGV equipment includes a frame component, a moving component, a conveying component, and a lifting pressure box component. The frame component supports the RGV equipment, the moving component moves the RGV equipment on a preset track, the conveying component is mounted on the frame component, and the lifting pressure box component is used to lift and lower the workpiece.

2. The RGV device according to claim 1, characterized in that, The frame component is a rectangular frame structure welded from high-strength steel. The frame includes two main longitudinal beams arranged parallel to each other, and multiple crossbeams fixedly connected between the two main longitudinal beams, thus forming a stable basic frame.

3. The RGV device according to claim 1, characterized in that, The moving component includes a drive motor, a first reducer, a transmission shaft, two sets of driving wheels, two sets of driven wheels, a drive mounting plate, two sets of driving wheel brackets, and two sets of driven wheel brackets.

4. The RGV device according to claim 1, characterized in that, The conveying component is integrally mounted on the frame and consists of a conveying motor, a motor mounting plate, a second reducer, a first driving sprocket, a first driven sprocket, a drive chain, a transmission shaft, a conveying chain, a second driving sprocket, a second driven sprocket, a tensioning assembly, a support frame, a stabilizing beam, a side guide plate, and bearings.

5. The RGV device according to claim 1, characterized in that, The aforementioned lifting pressure box component includes a pressure box mechanism and a lifting mechanism, wherein the pressure box mechanism includes a column, a top crossbeam, a middle crossbeam, a guide rail, a slider, a rack, a box base, a servo motor, gears, a pressure box beam support rod, and a pressure box beam.

6. A method of operating the RGV device according to claim 1, characterized in that, The operation method includes the following steps: S1: The intelligent unit issues a core casting instruction. After receiving the instruction, the automated warehouse management system dispatches the stacker crane to transport the assembled sand core and pallet to the exit roller conveyor position and enter the waiting-to-go state. S2: After the sand core and pallet are in place at the outlet, the RGV dispatching system automatically sends a dispatching instruction to the RGV equipment, and the RGV equipment transfers the sand core and pallet. S3: The RGV equipment automatically travels along the preset track to the pouring waiting area. At the same time, the pressure box beam is precisely positioned to the preset pressure box position under the drive of the motor. Then the sand core tray is steadily lifted until the upper part of the sand core is in full contact with the pressure box beam and the predetermined clamping force is reached. S4: After the pressing operation is completed, the RGV equipment enters the casting area for casting. After casting is completed, the RGV equipment transfers the core package component to the automated warehouse entrance and then returns autonomously to the receiving waiting area to start a new round of operation.

7. The operating method according to claim 6, characterized in that, A pressure sensor is installed on the pressure box beam. When the pressure sensor senses pressure, it transmits a signal to the lifting motor, causing the lifting motor to stop rising.

8. The operating method according to claim 6, characterized in that, The preset pressure box position is issued by the intelligent unit to the RGV scheduling system according to the shape of the sand core, and then issued by the RGV scheduling system to the RGV equipment for execution.

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