Sand box molding and compacting device

Abstract

The invention relates to the technical field of casting production, and discloses a sand box molding compaction device which comprises a base and a compaction air cylinder, jolt-squeeze assemblies for molding an upper sand box and a lower sand box are arranged on the front side and the rear side of the base correspondingly, and each jolt-squeeze assembly comprises a vibration base arranged on the two sides of the base in a reciprocating type up-down sliding mode; the two vibration bases are fixedly connected with compaction air cylinders respectively, a linkage assembly driving the two vibration bases to act synchronously is arranged on the base, positioning assemblies fixedly connected with the base are arranged in the vibration bases, when the first wedge-shaped base is located in the middle position, the positioning assemblies are triggered to act for positioning operation, and when the first wedge-shaped base is not located in the middle position, the positioning assemblies are triggered to act for positioning operation. And the positioning assembly is subjected to positioning releasing operation. The molding operation of the upper sand box and the molding operation of the lower sand box can be concentrated on the same device, the occupied area of a use place is reduced, the use in a space-limited place is met, the production cost can be saved, and therefore the use efficiency of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of casting production technology, specifically to a sand box molding and compaction device. Background Technology

[0002] Sand casting is the most traditional and widely used metal casting method. It uses sand molds as the casting material and is suitable for forming various metals such as iron, steel, aluminum, and copper. Its core process involves creating a cavity in the sand mold using a wooden or metal model, then pouring molten metal into it, and finally cooling it to obtain the casting.

[0003] Currently, when molding the upper and lower sand boxes, two separate vibration molding machines are usually required. Each vibration molding machine generally consists of a base, vibration cylinder, compaction cylinder, upper template, lower template, and top rod mechanism. Moreover, the vibration cylinder and compaction cylinder are integrated (i.e., the compaction cylinder is placed at the bottom, and the piston cylinder of the compaction cylinder is the cylinder body of the vibration cylinder. The piston of the vibration cylinder is connected inside the piston cylinder of the compaction cylinder. The top surface of the piston of the vibration cylinder is connected to the bearing seat, and the upper or lower template is connected to the bearing seat).

[0004] In the above operations, two vibration-press molding machines are required to mold the upper and lower sand boxes separately. It is not possible to concentrate the molding operations of the upper and lower sand boxes on the same machine, resulting in a large area occupation and making it unsuitable for space-constrained places. Moreover, the integrated design of the vibration-pressing cylinder and the compaction cylinder not only increases the complexity of the internal structure, but also places higher demands on the air circuit control, thus increasing production costs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned difficulties and provide a sand box molding and compaction device.

[0006] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a sand box molding and compaction device, including a base and a compaction cylinder, wherein the base is provided with a vibration and pressing component for molding an upper sand box and a lower sand box on its front and rear sides respectively, the vibration and pressing component includes a vibrating seat that is reciprocatingly slidably disposed on both sides of the base, and a compaction cylinder is fixedly connected to the two vibrating seats respectively, and a linkage component for driving the two vibrating seats to move synchronously is provided on the base; The linkage component includes a turntable located in the middle between two vibrating seats and rotatably mounted on the base. A sliding column is rotatably mounted at the eccentric position of the turntable. The component also includes a drive slide groove that slides with the sliding column. Guide rods that slide with the base are fixed at both ends of the drive slide groove. A wedge-shaped seat is fixed at the other end of the guide rod. A matching seat is fixed at both ends of the wedge-shaped seat on the vibrating seat. The vibrating seat is equipped with a positioning component that is fixedly connected to the base. When the wedge seat is in the neutral position, the positioning component is triggered to perform positioning operations. When the wedge seat is not in the neutral position, the positioning component is released from positioning operations.

[0007] As an improvement, the positioning component includes a fixed cylinder fixedly mounted on the base and surrounding the vibrating seat. The vibrating seat has a hollow internal structure and a lifting rod that slides up and down through the center. A wedge-shaped seat is slidably mounted on the lifting rod. Multiple movable rods with a rebound function are equidistantly arranged in the circumferential direction of the vibrating seat. Each movable rod has a positioning seat at its outer end that abuts against the inner wall of the fixed cylinder, and a mating seat that matches the wedge-shaped seat at its inner end. A mounting frame is provided on the bottom surface of the lifting rod, and a roller is rotatably mounted on this mounting frame. A convex seat that pushes the roller is fixedly mounted on the top surface of the wedge-shaped seat. A return spring is fixedly mounted between the wedge-shaped seat and the bottom wall of the compaction cylinder. The wedge-shaped seat 2 is fixedly equipped with a fixing component that is fixedly connected to the lifting rod. When the wedge-shaped seat 2 moves downward to near the bottom wall of the vibrating seat, the fixing component is triggered to release the positioning of the lifting rod.

[0008] As an improvement, the fixing assembly includes a mounting groove that avoids the lifting rod and is opened on the bottom surface of the wedge seat two. The center of the wedge seat two is provided with a seat body that passes through the lifting rod. A positioning pin with a spring-loaded function is provided in the seat body. The lifting rod is provided with a pin hole for the positioning pin to be inserted. A frame is fixed on the outer surface of the positioning pin and a wedge block is provided on the inner wall of the frame. A telescopic rod is fixed on the bottom wall of the vibration seat. A mating block that matches the wedge block is fixed on the movable end of the telescopic rod.

[0009] As an improvement, the telescopic rod includes a cylinder fixedly mounted on the bottom wall of the vibrating seat, a movable rod with a rebound function passing through the cylinder, an electromagnet fixedly mounted on the bottom surface of the movable rod, a mating block fixedly connected to the top surface, and a coil cooperating with the electromagnet wound inside the cylinder, and an electromagnetic head for supplying power to the coil is also provided outside.

[0010] As an improvement, magnet one and magnet two are respectively provided between the bottom surface of the wedge-shaped seat two and the bottom wall of the vibration seat for mutual cooperation.

[0011] As an improvement, an inverted U-shaped frame is fixedly provided at both ends of the vibration seat on the base. A sliding rod that is fixedly connected to the vibration seat slides through the U-shaped frame, and a return spring is wound around the sliding rod.

[0012] As an improvement, the bottom surface of the fixed cylinder is provided with a plurality of support rods that are fixedly connected to the base at equal intervals along the circumferential direction, and the bottom surface of the fixed cylinder is provided with a plurality of extension seats that support the vibration seat, and guide columns that are fixedly connected to the vibration seat are slidably inserted in the extension seats.

[0013] The advantages of this invention compared to the prior art are as follows: 1. Vibration pressing components are set on the front and rear sides of the base respectively, and the vibration operation of the two vibration pressing components is synchronously controlled by the linkage component. This not only concentrates the molding operation of the upper and lower sand boxes on the same device, reducing the footprint of the device and meeting the needs of use in space-constrained places, but also simplifies the complexity of the structure when controlling the vibration operation of the two vibration pressing components, and reduces the production cost of the device. 2. Under the action of the turntable, sliding column, drive slide, guide rod, wedge seat 1 and mating seat 1, the turntable can drive the vibrating seats at both ends to perform synchronous up-and-down reciprocating vibration during the rotation of the turntable, and then drive the compaction cylinder to perform up-and-down reciprocating vibration, thereby improving the convenience of vibration operation of the vibrating seats at both ends. 3. Under the action of the positioning component and the triggering of the positioning component when the wedge seat is in the middle position, not only can the vibrating seat and the compaction cylinder be fixedly connected to the base, thus achieving the effect of stability during the extension and retraction of the compaction cylinder, but also the operation of the positioning component can be conveniently and quickly carried out. 4. Under the action of fixing the component and releasing the positioning of the fixing component, the triggering operation of the positioning component can be released during the reciprocating vibration of the vibrating seat, thereby improving the ease of operation of this device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a partial structural diagram of the present invention.

[0016] Figure 3 This is a schematic diagram of the linkage component in this invention.

[0017] Figure 4 This is a partial internal structure of the present invention. Figure 1 .

[0018] Figure 5 This is a schematic diagram of the positioning component in this invention.

[0019] Figure 6 This is a partial internal structure of the present invention. Figure 2 .

[0020] Figure 7 This is the present invention. Figure 5 Enlarged view of point A in the middle.

[0021] Figure 8 This is a diagram of the internal structure of the telescopic rod in this invention.

[0022] Figure 9This is a partial structural schematic diagram of the present invention.

[0023] As shown in the figure: 1. Base; 111. U-shaped frame; 112. Slide rod; 113. Second return spring; 114. Support rod; 115. Extension seat; 116. Guide column; 2. Compaction cylinder; 3. Vibration assembly; 311. Vibration seat; 4. Linkage assembly; 411. Turntable; 412. Slide column; 413. Drive slide groove; 414. Guide rod; 415. Wedge seat one; 416. Mating seat one; 5. Positioning assembly; 510. Fixed cylinder; 511. Lifting rod; 512. Second wedge seat; 513. 514. Moving rod; 515. Positioning seat; 516. Mating seat II; 517. Mounting bracket; 518. Roller; 519. Convex seat; 510. Return spring I; 6. Fixing assembly; 611. Mounting groove; 612. Seat body; 613. Positioning pin; 614. Frame body; 615. Wedge block; 616. Telescopic rod; 6161. Cylinder body; 6162. Moving rod; 6163. Electromagnet; 6164. Coil; 6165. Electromagnetic head; 711. Support frame; 712. Swing seat; 713. Pressure head. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5 As shown, a sand box molding and compaction device includes a base 1 and a compaction cylinder 2. The base 1 has vibration and pressing components 3 on its front and rear sides for molding upper and lower sand boxes, respectively. The vibration and pressing components 3 include vibrating seats 311 that are reciprocated and slidably disposed on both sides of the base 1. The compaction cylinder 2 is fixedly connected to the two vibrating seats 311 respectively. The extension and retraction of the two compaction cylinders 2 are synchronized. The piston top surfaces of the two compaction cylinders 2 are respectively provided with bearing seats. The two bearing seats are respectively provided with upper and lower templates (which belong to the prior art) for use in pairs. The base 1 is provided with a linkage component 4 for driving the two vibrating seats 311 to move synchronously. The linkage component 4 includes a turntable 411 located in the middle between two vibration seats 311 and rotatably mounted on the base 1. The rotation of the turntable 411 is controlled by a speed-regulating motor mounted on the base 1. A sliding column 412 is rotatably mounted at the eccentric position of the turntable 411. The component also includes a drive groove 413 that slides with the sliding column 412. Guide rods 414 that slide with the base 1 are fixed at both ends of the drive groove 413. An isosceles trapezoidal wedge seat 415 is fixed at the other end of the guide rod 414. A matching seat 416 is fixed at both ends of the wedge seat 415 on the vibration seat 311. In order to control the rotation of the turntable 411, gear teeth can be equidistantly opened on the outer wall of the turntable 411 along its circumference to form a gear structure. A small gear that meshes with the gear structure is rotatably provided on the base 1, and the input shaft of the small gear is connected to the output shaft of the motor (not shown in the figure). Because the vibrating seat 311 is movable, in order to fix the vibrating seat 311 and the compaction cylinder 2 to the base 1 during the extension and retraction of the compaction cylinder 2, a positioning component 5 fixedly connected to the base 1 is provided inside the vibrating seat 311. When the wedge seat 415 is in the middle position (this middle position is the middle position between the two mating seats 416), the positioning component 5 is triggered to perform the positioning operation and fix the vibrating seat 311 to the base 1. When the wedge seat 415 is not in the middle position, the positioning component 5 is released from the positioning operation. By detecting the position of the turntable 411, the middle position of the wedge seat 415 can be effectively obtained. When detecting the position of the turntable 411, the detection switch in the prior art can be used. A support frame 711 is fixedly provided on the base 1 at the middle position between the two shock-pressing components 3. A swing seat 712 is rotatably provided on the support frame 711. The two ends of the swing seat 712 are respectively provided with pressure heads 713 for use with the upper sand box and the lower sand box.

[0026] With the above structure, firstly, two workers stand on the front and back sides of the base 1 respectively. The two workers place the upper sand box and the lower sand box on the corresponding upper and lower templates respectively, and then inject molding sand into the upper sand box and the lower sand box respectively. After the molding sand is injected, the turntable 411 is controlled to rotate, and then the sliding column 412 is driven to rotate at the eccentric position. At the same time, the sliding column 412 slides in the drive slide groove 413, which forces the drive slide groove 413 to slide left and right. Then, the guide rods 414 at both ends are driven to slide left and right synchronously on the base 1. At the same time, the wedge seat 415 slides left and right and cooperates with the mating seats 416 at both ends respectively. When the wedge seat 415 slides in a non-central position, the positioning of the vibrating seat 311 is first released. Then, under the reciprocating cooperation of the wedge seat 415 and the mating seat 416, the vibrating seats 311 at both ends are driven to perform synchronous up and down reciprocating vibration. After the vibration operation is completed, the wedge seat 415 is adjusted to the center position, triggering the positioning component 5 to fix the vibration seat 311 and the compaction cylinder 2. Then, the swing seat 712 is swung and adjusted so that the pressure heads 713 at both ends correspond to the upper and lower sand boxes. Then, the extension of the compaction cylinder 2 is controlled to drive the upper and lower sand boxes to abut against the pressure heads 713, thus compacting the molding sand in the upper and lower sand boxes.

[0027] Combined with appendix Figure 4 and attached Figure 5As shown, the positioning component 5 includes a fixed cylinder 510 fixedly mounted on the base 1 and surrounding the vibrating seat 311. The vibrating seat 311 has a hollow internal structure and a lifting rod 511 that slides up and down through the center. A wedge-shaped seat 512 is slidably mounted on the lifting rod 511. Multiple movable rods 513 with a rebound function are equidistantly arranged in the circumferential direction of the vibrating seat 311. Each movable rod 513 has a positioning seat 514 at its outer end that abuts against the inner wall of the fixed cylinder 510, and a positioning seat 514 at its inner end. The mating seat 515 is adapted to the wedge seat 512. The outer ends of the multiple positioning seats 514 are arc-shaped structures that mate with the inner wall of the fixed cylinder 510. The bottom surface of the lifting rod 511 is provided with a mounting bracket 516 and a roller 517 is rotatably mounted on the mounting bracket 516. A convex seat 518 that pushes the roller 517 is fixed on the top surface of the wedge seat 415. The top surface of the convex seat 518 is an arc-shaped structure that mates with the roller 517. A return spring 519 is fixed between the wedge seat 512 and the bottom wall of the compaction cylinder 2. A fixing component 6 is fixedly provided on the wedge seat 512 and fixedly connected to the lifting rod 511. When the wedge seat 512 moves downward to near the bottom wall of the vibration seat 311, the fixing component 6 is triggered to act and release the positioning of the lifting rod 511.

[0028] The working principle of positioning component 5 is as follows: In the initial state, wedge seat 415 is in the center position, and positioning component 5 is in the positioning state. When wedge seat 415 slides and is not in the center position, convex seat 518 will slide. During the sliding process of convex seat 518, the arc surface of convex seat 518 will continuously contact roller 517 to ensure the smooth up and down sliding of roller 517. When convex seat 518 separates from roller 517 at its highest point, lifting rod 511 will slide downward, simultaneously driving wedge seat 512 to slide downward, causing wedge seat 512 to separate from mating seat 515. At this time, multiple moving rods 513 will automatically spring back, causing positioning seat 514 to move away from fixed cylinder. The inner wall of 510 moves and separates, thereby releasing the positioning of the vibrating seat 311 and the compaction cylinder 2. At the same time, when the second wedge seat 512 moves downward to near the bottom wall of the vibrating seat 311, it will trigger the action of the fixing component 6 and release the positioning of the lifting rod 511. In this way, during the reciprocating movement of the first wedge seat 415, each time it is in the middle position, when the convex seat 518 and the roller 517 cooperate, the lifting rod 511 will be driven to slide up and down in the second wedge seat 512. At this time, the second wedge seat 512 will not slide up and down, so it will not trigger the positioning operation of the positioning component 5. Thus, during the reciprocating vibration of the vibrating seat 311 and the compaction cylinder 2, the action of the positioning component 5 will not be affected.

[0029] Combined with appendix Figure 4 Appendix Figure 6 Appendix Figure 7 and attached Figure 8 As shown, the fixing component 6 includes a mounting groove 611 that avoids the lifting rod 511 and is opened on the bottom surface of the wedge-shaped seat 512. The wedge-shaped seat 512 has a seat body 612 at the center for the lifting rod 511 to pass through. A positioning pin 613 with a spring-loaded function is inserted into the seat body 612. The lifting rod 511 has a pin hole for the positioning pin 613 to be inserted. A frame 614 is fixed on the outer surface of the positioning pin 613, and a wedge block 615 is provided on the inner wall of the frame 614. A telescopic rod 616 is fixed on the bottom wall of the vibration seat 311. A mating block 617 that matches the wedge block 615 is fixed on the movable end of the telescopic rod 616. A magnet 1 and a magnet 2 (not shown in the figure) are respectively provided between the bottom surface of the wedge-shaped seat 512 and the bottom wall of the vibration seat 311 for mutual cooperation. When the magnet 1 and the magnet 2 are close to each other, they attract each other. The telescopic rod 616 includes a cylinder 6161 fixedly mounted on the bottom wall of the vibrating seat 311. A movable rod 6162 with a rebound function is inserted inside the cylinder 6161, and the elastic force of the movable rod 6162 is greater than the elastic force of the positioning pin 613. An electromagnet 6163 is fixedly mounted on the bottom surface of the movable rod 6162, and a mating block 617 is fixedly connected to the top surface. A coil 6164 that cooperates with the electromagnet 6163 is wound inside the cylinder 6161, and an electromagnetic head 6165 that supplies power to the coil 6164 is also provided outside. The electromagnetic head 6165 is connected to an external wire.

[0030] The principle of positioning or depositioning of the fixed component 6 is as follows: In the initial state, the positioning pin 613 engages with the pin hole to fix the lifting rod 511 and the wedge seat 512. When the wedge seat 512 moves downward to near the bottom wall of the vibrating seat 311, the wedge block 615 slides downward and engages with the mating block 617. Under the action of the two, the positioning pin 613 is pushed to slide to the right, so that the positioning pin 613 is separated from the pin hole, and the positioning of the lifting rod 511 is released. At the same time, with the cooperation of the return spring 519, magnet 1 and magnet 2, the wedge seat 512 is fixedly connected to the bottom wall of the vibrating seat 311. In this way, during the up-and-down reciprocating vibration of the vibrating seat 311, the lifting rod 511 can slide up and down in the wedge seat 512 without triggering the positioning component 5. When the vibration operation is about to be completed and the vibration seat 311 is in the upper position, the electromagnetic head 6165 is energized through an external wire. At this time, a strong magnetic field is generated at the coil 6164. Under the action of the magnetic field, the movable rod 6162 will overcome the spring force and move downward, causing the mating block 617 to separate from the wedge block 615. At this time, the positioning pin 613 will automatically spring back and extend. Through the cooperation of the electromagnetic head 6165, the coil 6164 and the electromagnet 6163, the extension and retraction action of the movable rod 6162 can be responded to quickly. During the upward sliding of the lifting rod 511, the pin hole and the positioning pin 613 are engaged, thereby fixing the lifting rod 511 to the wedge seat 512. As the lifting rod 511 continues to move upward, it drives the wedge seat 512 to move upward, thereby controlling the positioning component 5 to perform positioning operations. In this embodiment, the energization of the electromagnetic head 6165 can be controlled by a time relay.

[0031] Combined with appendix Figure 4 and attached Figure 9 As shown, an inverted U-shaped frame 111 is fixedly provided at both ends of the vibration seat 311 on the base 1. A slide rod 112 fixedly connected to the vibration seat 311 slides through the U-shaped frame 111. A return spring 113 is wound around the slide rod 112. The bottom surface of the fixed cylinder 510 is provided with a plurality of support rods 114 fixedly connected to the base 1 at equal intervals along the circumferential direction, and the bottom surface of the fixed cylinder 510 is provided with a plurality of extension seats 115 supporting the vibration seat 311. The extension seat 115 is slidably provided with a guide post 116 fixedly connected to the vibration seat 311. The arrangement of the slide rod 112 and the guide post 116 can ensure the stability of the vibration seat 311 when it vibrates up and down.

[0032] In the specific implementation of this invention, firstly, two workers are positioned on the front and rear sides of the base 1, respectively, and place the upper sand box and lower sand box at the upper and lower templates. Then, molding sand is added to the upper and lower sand boxes. After addition, the turntable 411 is controlled to rotate. Under the action of the sliding column 412 and the drive slide groove 413, the guide rod 414 and the wedge seat 415 perform reciprocating left-right sliding operations. Through the cooperation of the wedge seat 415 with the mating seats 416 at both ends, the vibrating seats 311 at both ends, the compaction cylinder 2, the upper template, and the lower template perform reciprocating up-and-down vibration operations. When the wedge seat 415... When the 5-axis slides to a non-center position, it triggers the positioning component 5 to release the positioning of the vibrating seat 311, causing the vibrating seat 311 to perform reciprocating up-and-down vibration. When the positioning component 5 is released, the wedge seat 2 512 slides downward. When the wedge seat 2 512 slides close to the bottom wall of the vibrating seat 311, it triggers the fixing component 6 to release the positioning of the lifting rod 511. This allows the lifting rod 511 to slide up and down within the wedge seat 2 512 during the left-right sliding motion of the wedge seat 1 415, which drives the vibrating seat 311 to reciprocate up and down, thus preventing the positioning component 5 from being triggered. This device not only concentrates the molding operations of the upper and lower sand boxes on the same device, reducing the area occupied in the workspace and meeting the needs of use in space-constrained locations, but also saves production costs, thereby improving the efficiency of the device.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sand box molding and compaction device, comprising a base (1) and a compaction cylinder (2), characterized in that: The base (1) is provided with a vibration and pressing assembly (3) for shaping the upper sand box and the lower sand box on the front and rear sides respectively. The vibration and pressing assembly (3) includes a vibrating seat (311) that is reciprocated and slidably arranged on both sides of the base (1). A compaction cylinder (2) is fixedly connected to the two vibrating seats (311). The base (1) is provided with a linkage assembly (4) for driving the two vibrating seats (311) to move synchronously. The linkage component (4) includes a turntable (411) located in the middle between two vibration seats (311) and rotatably mounted on the base (1). A sliding column (412) is rotatably mounted at the eccentric position of the turntable (411). The component also includes a drive groove (413) that slides with the sliding column (412). Guide rods (414) that slide with the base (1) are fixed at both ends of the drive groove (413). A wedge-shaped seat (415) is fixed at the other end of the guide rod (414). A matching seat (416) is fixed at both ends of the wedge-shaped seat (415) on the vibration seat (311). The vibration seat (311) is provided with a positioning component (5) that is fixedly connected to the base (1). When the wedge seat (415) is in the neutral position, the positioning component (5) is triggered to perform positioning operation. When the wedge seat (415) is not in the neutral position, the positioning component (5) is released from positioning operation.

2. The sand box molding and compaction device according to claim 1, characterized in that: The positioning component (5) includes a fixed cylinder (510) fixedly mounted on the base (1) and surrounding the vibration seat (311). The vibration seat (311) has a hollow structure inside and a lifting rod (511) that slides up and down is provided at the center. A wedge-shaped seat (512) is provided on the lifting rod (511). Multiple movable rods (513) with rebound function are provided at equal intervals in the circumferential direction of the vibration seat (311). Each movable rod (513) has a fixed end on its outer side. The positioning seat (514) abuts against the inner wall of the cylinder (510), and the inner end is provided with a mating seat (515) that is adapted to the wedge seat (512). The bottom surface of the lifting rod (511) is provided with a mounting frame (516) and a roller (517) is rotatably provided on the mounting frame (516). The top surface of the wedge seat (415) is fixed with a convex seat (518) that pushes the roller (517). The wedge seat (512) and the bottom wall of the compaction cylinder (2) are fixed with a return spring (519). The wedge seat 2 (512) is fixedly provided with a fixing component (6) that is fixedly connected to the lifting rod (511). When the wedge seat 2 (512) moves downward to near the bottom wall of the vibration seat (311), the fixing component (6) is triggered to move and release the positioning of the lifting rod (511).

3. The sand box molding and compaction device according to claim 2, characterized in that: The fixing component (6) includes a mounting groove (611) that avoids the lifting rod (511) and is opened on the bottom surface of the wedge seat (512). The wedge seat (512) has a seat body (612) that passes through the lifting rod (511) at the center. A positioning pin (613) with a spring-loaded function is provided inside the seat body (612). The lifting rod (511) has a pin hole for the positioning pin (613) to be inserted. A frame (614) is fixed on the outer surface of the positioning pin (613), and a wedge block (615) is provided on the inner wall of the frame (614). A telescopic rod (616) is fixed on the bottom wall of the vibration seat (311), and a mating block (617) that matches the wedge block (615) is fixed on the movable end of the telescopic rod (616).

4. The sand box molding and compaction device according to claim 3, characterized in that: The telescopic rod (616) includes a cylinder (6161) fixedly mounted on the bottom wall of the vibrating seat (311). A movable rod (6162) with a rebound function is inserted inside the cylinder (6161). An electromagnet (6163) is fixedly mounted on the bottom surface of the movable rod (6162), and a mating block (617) is fixedly connected to the top surface. A coil (6164) that cooperates with the electromagnet (6163) is wound inside the cylinder (6161), and an electromagnetic head (6165) that supplies power to the coil (6164) is also provided outside.

5. The sand box molding and compaction device according to claim 3, characterized in that: Magnet 1 and Magnet 2 are respectively provided between the bottom surface of the wedge seat 2 (512) and the bottom wall of the vibration seat (311) for mutual cooperation.

6. The sand box molding and compaction device according to claim 2, characterized in that: An inverted U-shaped frame (111) is fixedly provided on the base (1) at both ends of the vibration seat (311). A slide rod (112) fixedly connected to the vibration seat (311) is slidably passed through the U-shaped frame (111). A second return spring (113) is wound around the slide rod (112).

7. The sand box molding and compaction device according to claim 6, characterized in that: On the bottom surface of the fixed cylinder (510), there are multiple support rods (114) that are fixedly connected to the base (1) at equal intervals along the circumferential direction. On the bottom surface of the fixed cylinder (510), there are multiple extension seats (115) that support the vibration seat (311). Guide columns (116) that are fixedly connected to the vibration seat (311) are slidably inserted in the extension seats (115).

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