A molding machine capable of arbitrarily adjusting the height of a sand mold

Abstract

The utility model discloses a molding machine that can adjust sand mould height at will, height adjusting mechanism includes the groove of being set up in the top of base, the inner wall rotation of groove is connected with two -way screw rod, and the outer wall of two -way screw rod is connected with two movable blocks, and the top of two movable blocks all is fixedly connected with first fixed seat, and one side of two first fixed seats is rotatably connected with first connecting rod, and the other end of two first connecting rods is rotatably connected with second fixed seat, and one side fixed connection of base has motor, the utility model discloses, can under the drive of motor in use, drive two -way screw rod to rotate to can drive first connecting rod and lift the bottom plate of top to can adjust the height of sand box of top to make in use, can adjust according to need to improve the precision of the casting of production afterwards to improve the work efficiency in production process.

Description

Technical Field

[0001] This utility model relates to the field of molding machine technology, specifically a molding machine that can arbitrarily adjust the height of the sand mold. Background Technology

[0002] A molding machine is a foundry equipment used to manufacture sand molds. Its main functions are: filling sand, which involves filling loose molding sand into the sand box; compacting the molding sand, which involves compacting the loose molding sand in the sand box through various methods such as vibration, pressing, vibration pressure, and injection pressure, so that the sand mold has the necessary strength during handling and pouring; and removing the mold, which involves using relevant mechanisms to remove the pattern from the compacted sand mold.

[0003] In existing molding machines, the sand box is installed at a fixed working height. When processing different casting patterns, the relative distance between the sand box and the compaction top plate cannot be adjusted, resulting in a mismatch between the compaction stroke and the sand intake. This can easily lead to uneven distribution of molding sand compaction inside the sand box; insufficient compaction in some areas of the sand mold can cause the box to expand and deform during pouring, ultimately resulting in dimensional deviations in the castings. At the same time, the sand box is prone to shaking during equipment operation, reducing the production efficiency of the molding machine.

[0004] It should be noted that the above content represents only the inventor's understanding of the prior art and does not necessarily represent the prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a molding machine that can arbitrarily adjust the height of the sand mold, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model proposes a molding machine capable of arbitrarily adjusting the height of a sand mold, comprising a base, the top of which is provided with a height adjustment mechanism; the height adjustment mechanism includes a groove formed on the top of the base, a bidirectional lead screw rotatably connected to the inner wall of the groove, and two movable blocks threadedly connected to the outer wall of the bidirectional lead screw, the top of each of the two movable blocks being fixedly connected to a first fixed seat, a first connecting rod rotatably connected to one side of each of the two first fixed seats, and a second fixed seat rotatably connected to the other end of each of the two first connecting rods.

[0007] In one example, a motor is fixedly connected to one side of the base, and the bidirectional lead screw passes through the inner wall of the groove and is fixedly connected to the output end of the motor.

[0008] In one example, support rods are fixedly connected to the four corners of the top of the base, and sleeves are fixedly installed at the four corners of the base plate, with the sleeves slidably fitted onto the outer walls of the support rods; and the top of the second fixed seat is fixedly connected to both sides of the bottom of the base plate. When the base plate is raised or lowered, the sleeves slide vertically along the support rods to provide guidance and simultaneously share the lateral load.

[0009] In one example, grooves are provided on both sides of the top of the base plate, and a sand box is slidably connected to the top of the grooves.

[0010] In one example, an electric telescopic rod is fixedly connected to one side of the top of the base plate, a top plate is fixedly connected to the top of the electric telescopic rod, and a movable rod is fixedly connected to the other side of the bottom of the base plate, with the other end of the movable rod fixedly connected to the other side of the bottom of the top plate.

[0011] In one example, a switch panel is provided on one side of the base. The surface of the switch panel is provided with a motor switch and an electric telescopic rod switch. The motor is electrically connected to an external power source through the motor switch and the electric telescopic rod is electrically connected to an external power source through the electric telescopic rod switch.

[0012] The molding machine with adjustable sand mold height proposed in this utility model offers the following advantages: 1. This utility model uses a scissor-type height adjustment mechanism consisting of a bidirectional lead screw, a movable block, and a first connecting rod to drive the base plate to rise and fall, thereby adjusting the working height of the sand box. During the compaction process of the molding machine, the working height of the sand box directly determines the compaction stroke of the top plate. Adjusting the sand box height can accommodate the sand intake requirements of different patterns, ensuring that the molding sand inside the sand box is compacted and uniform, preventing deformation of the sand mold due to inconsistent compaction, effectively ensuring the dimensional accuracy of the casting, and improving production efficiency. 2. The sleeves at the four corners of the base plate are slidably connected to the support rods, providing vertical guidance and constraint for the lifting of the base plate, and also sharing the lateral load generated during equipment operation, reducing the lateral load borne by the first connecting rod, and improving the reliability of the overall mechanism's load-bearing capacity. 3. The sand box is slidably assembled with the grooves on the base plate. After the casting is formed, the sand box can be directly slid out for easy removal, improving the practicality of the device. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with their descriptions, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 is a schematic diagram of the structure of the present invention; Figure 2 is a schematic diagram of the top structure of the base of the present invention; Figure 3 is a schematic diagram of the height adjustment mechanism of the present invention; Figure 4 is a schematic diagram of the base plate structure of the present invention; Figure 5 is a schematic diagram of the sand box structure of the present invention.

[0014] In the diagram: 1. Base; 2. Groove; 3. Two-way lead screw; 4. Movable block; 5. First fixed seat; 6. First connecting rod; 7. Second fixed seat; 8. Base plate; 9. Sleeve; 10. Support rod; 11. Top plate; 12. Electric telescopic rod; 13. Movable rod; 14. Sand box; 15. Slide groove; 16. Motor. Detailed Implementation

[0015] To more clearly illustrate the overall concept of this utility model, a detailed description is provided below with reference to the accompanying drawings.

[0016] As shown in Figures 1-5, this utility model embodiment provides a molding machine capable of arbitrarily adjusting the height of the sand mold, including a base 1, with a height adjustment mechanism on the top of the base 1. The height adjustment mechanism includes a groove 2 formed on the top of the base 1, a bidirectional lead screw 3 rotatably connected to the inner wall of the groove 2, and two movable blocks 4 threadedly connected to the outer wall of the bidirectional lead screw 3. A first fixed seat 5 is fixedly connected to the top of each of the two movable blocks 4, a first connecting rod 6 rotatably connected to one side of each of the two first fixed seats 5, and a second fixed seat 7 rotatably connected to the other end of each of the two first connecting rods 6.

[0017] Specifically, a motor 16 is fixedly connected to one side of the base 1, and the bidirectional lead screw 3 passes through the inner wall of the groove 2 and is fixedly connected to the output end of the motor 16. The motor 16 outputs power to drive the bidirectional lead screw 3 to rotate, and the bidirectional lead screw 3 drives the two movable blocks 4 to move horizontally in opposite directions, thereby driving the first connecting rod 6 to swing, realizing the scissor lift action.

[0018] Specifically, support rods 10 are fixedly connected to the four corners of the top of the base 1, and sleeves 9 are fixedly provided at the four corners of the base plate 8. The sleeves 9 are slidably fitted onto the outer wall of the support rods 10; and the top of the second fixed seat 7 is fixedly connected to both sides of the bottom of the base plate 8. When the base plate 8 is raised or lowered, the sleeves 9 slide vertically along the outer wall of the support rods 10, which serves as a guide for the raising and lowering of the base plate 8 to prevent it from tilting; on the other hand, it can share the lateral load generated by the molding operation, reduce the lateral force borne by the first connecting rod 6, and improve the overall load-bearing reliability of the mechanism.

[0019] Specifically, the base plate 8 has sliding grooves 15 on both sides of its top, and a sand box 14 is slidably connected to the top of the sliding grooves 15. The sand box 14 can slide along the sliding grooves 15, and can be directly slid out after processing for easy removal of the part.

[0020] Specifically, an electric telescopic rod 12 is fixedly connected to one side of the top of the base plate 8, and a top plate 11 is fixedly connected to the top of the electric telescopic rod 12. A movable rod 13 is fixedly connected to the other side of the top of the base plate 8, and the other end of the movable rod 13 is fixedly connected to the other side of the bottom of the top plate 11. The electric telescopic rod 12 drives the top plate 11 to press down, cooperating with the sand box 14 to complete the molding sand compaction operation. The movable rod 13 provides auxiliary guidance for the top plate 11.

[0021] Specifically, a switch panel is provided on one side of the base 1. The surface of the switch panel is provided with a motor switch and an electric telescopic rod switch. The motor 16 is electrically connected to an external power supply through the motor switch and the electric telescopic rod 12 is electrically connected to the electric telescopic rod switch. The operator controls the start and stop of the motor 16 and the electric telescopic rod 12 through the switch panel.

[0022] Working Principle: When using this molding machine, the operator starts the motor 16 via the switch panel. The motor 16 drives the bidirectional lead screw 3 to rotate, which in turn drives two movable blocks 4 to produce horizontal displacements in opposite directions. The movable blocks 4, via the first fixed seat 5, drive the first connecting rod 6 to swing, thereby lifting or lowering the base plate 8 via the second fixed seat 7. During the lifting and lowering of the base plate 8, the sleeves 9 at the four corners slide vertically along the support rod 10, guiding and limiting the base plate 8, while also sharing the lateral load generated during operation, reducing the lateral force on the first connecting rod 6, and ensuring the smooth lifting and lowering of the base plate 8, thereby adjusting the working height of the sand box 14. After the height of the sand box 14 is adjusted to the correct position, molding sand is filled into the sand box 14, and the top plate 11 is pressed down via the electric telescopic rod 12 to complete the molding sand compaction process. By adjusting the working height of the sand box 14, the sand intake corresponding to different casting patterns can be adapted, so that the compaction stroke of the top plate 11 matches the working conditions, ensuring that the molding sand inside the sand box is compacted and uniform, avoiding deformation of the sand mold, and ensuring the dimensional accuracy of the casting. After the sand mold is made, the sand box 14 can be slid out along the slide groove 15 on the bottom plate 8 for convenient subsequent part removal operations.

[0023] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A molding machine capable of arbitrarily adjusting the height of a sand mold, comprising a base (1), wherein the top of the base (1) is provided with a height adjustment mechanism; characterized in that: The height adjustment mechanism includes a groove (2) on the top of the base (1). A two-way lead screw (3) is rotatably connected to the inner wall of the groove (2). Two movable blocks (4) are threaded to the outer wall of the two-way lead screw (3). A first fixed seat (5) is fixedly connected to the top of each of the two movable blocks (4). A first connecting rod (6) is rotatably connected to one side of each of the two first fixed seats (5). A second fixed seat (7) is rotatably connected to the other end of each of the two first connecting rods (6).

2. The molding machine capable of arbitrarily adjusting the height of the sand mold according to claim 1, characterized in that: A motor (16) is fixedly connected to one side of the base (1), and the bidirectional lead screw (3) passes through the inner wall of the groove (2) and is fixedly connected to the output end of the motor (16).

3. A molding machine capable of arbitrarily adjusting the height of the sand mold according to claim 1, characterized in that: Support rods (10) are fixedly connected to the four corners of the top of the base (1), and sleeves (9) are fixedly provided at the four corners of the base plate (8). The sleeves (9) are slidably sleeved on the outer wall of the support rods (10); and the top of the second fixed seat (7) is fixedly connected to both sides of the bottom of the base plate (8).

4. A molding machine capable of arbitrarily adjusting the height of the sand mold according to claim 3, characterized in that: The bottom plate (8) has grooves (15) on both sides of the top, and a sand box (14) is slidably connected to the top of the grooves (15).

5. A molding machine capable of arbitrarily adjusting the height of the sand mold according to claim 3, characterized in that: An electric telescopic rod (12) is fixedly connected to one side of the top of the base plate (8), and a top plate (11) is fixedly connected to the top of the electric telescopic rod (12). A movable rod (13) is fixedly connected to the other side of the top of the base plate (8), and the other end of the movable rod (13) is fixedly connected to the other side of the bottom of the top plate (11).

6. A molding machine capable of arbitrarily adjusting the height of the sand mold according to claim 2, characterized in that: The base (1) has a switch panel on one side. The surface of the switch panel is provided with a motor switch and an electric telescopic rod switch. The motor (16) is electrically connected to an external power source through the motor switch and the electric telescopic rod (12) is electrically connected to an external power source through the electric telescopic rod switch.

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