Sand mold casting compaction device

Abstract

The utility model relates to the technical field of sand mold casting, in particular to a sand mold casting compaction device which comprises a base, a casting box and a demolding plate, a supporting frame is fixedly installed at the top of the base, a hydraulic cylinder is fixedly installed at the top of the supporting frame, and the shaft end of the hydraulic cylinder penetrates through the supporting frame and is fixedly provided with a transverse plate. The casting box is fixedly installed at the position, located in the supporting frame, of the top of the base through a supporting table, and the demolding plate is arranged in the casting box. Wherein a demolding assembly is arranged at the top of the base, the demolding assembly is used for driving the demolding plate to ascend and descend, the lifting height of the demolding plate can be adjusted, and the demolding assembly is arranged so that the demolding plate can ascend to eject compacted casting sand in a casting box; the situation that casting sand is difficult to take out in a manual mode can be avoided, the casting efficiency can be improved, and the telescopic rod is arranged on the connecting rod, so that the lifting height of the demolding plate can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of sand casting, in particular to a sand casting compacting device. Background Art

[0002] The sand casting compaction device is a kind of equipment used in the sand casting process. It is mainly used to compact and fix the sand in the sand mold to ensure the accuracy and quality of the casting. The sand casting compaction device is usually composed of a hydraulic system, a compaction head, a base, etc. The pressure is provided by the hydraulic system to enable the compaction head to compact the sand mold evenly.

[0003] In order to ensure the accuracy and quality of the casting, it is necessary to compact the casting sand with the help of a sand casting compacting device. For example, the prior art Chinese patent publication number "CN213079986U" discloses a compacting device for sand casting, including a fixed frame, a cylinder, a pressure plate, an operating table and a base. The upper surface of the fixed frame is provided with a cylinder, the bottom of the cylinder is provided with a floating joint, the bottom of the floating joint is provided with a pressure plate, a mold is provided below the pressure plate, the outside of the telescopic rod and the sleeve is provided with a spring, a base is provided below the lower fixed plate, a rectangular groove is provided on the upper surface of the base, a first cam group is provided above the base, a cam is provided on the upper surface of the first cam group, and a fourth pulley is provided on the upper surface of the motor output shaft. Compared with the prior art, the utility model has the following beneficial effects: the compacting device for sand casting of the utility model drives the operating table to move up and down through the rotation of the cam, so that the molding sand inside the mold is evenly distributed, and it is not easy to generate pores inside the molding sand during the pressing process, thereby improving the qualified rate of product production.

[0004] Some sand casting compaction devices use hydraulic cylinders to drive pressure plates to compact the casting sand in the mold to ensure the quality of the casting. However, in actual operation, the casting sand needs to be compacted during sand casting to improve the density and strength of the compacted casting sand. However, considering that similar sand casting compaction devices do not have a demolding function in the mold, it is difficult to remove the compacted casting sand from the mold only by manual removal after the casting sand is compacted in the mold, which is not only inconvenient for pouring molten metal but also affects the casting efficiency. Utility Model Content

[0005] The utility model aims to solve the defect that the mold has no demoulding function in the prior art, and proposes a sand casting compacting device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sand casting compaction device is designed, comprising a base, a casting box and a stripper plate, a support frame is fixedly installed on the top of the base, a hydraulic cylinder is fixedly installed on the top of the support frame, a shaft end of the hydraulic cylinder passes through the support frame and a cross plate is fixedly installed, the top of the base is located in the support frame and the casting box is fixedly installed through a support platform, and the stripper plate is arranged in the casting box;

[0008] Wherein, a demoulding assembly is provided on the top of the base, and the demoulding assembly is used to drive the demoulding plate to rise and fall, and can also adjust the lifting height of the demoulding plate.

[0009] Furthermore, a pair of support plates are fixedly installed on the top of the base, the support platform is fixedly installed on the top of the support plates, guide rods are slidably connected on both sides of the cross plate, and the two ends of the guide rods are respectively fixedly connected to the top of the inner wall of the support frame and the top of the support platform.

[0010] Furthermore, a compaction plate is fixedly installed at the bottom of the transverse plate between a pair of guide rods, a buffer spring is provided on the outer periphery of the guide rods, and two ends of the buffer spring are respectively fixedly connected to the bottom of the transverse plate and the top of the support platform.

[0011] Furthermore, the demoulding assembly includes a motor, which is fixedly mounted on the top of the base next to the support plate. The shaft end of the motor passes through the support plate and is fixedly mounted with a screw rod, which is rotatably connected to a pair of support plates.

[0012] Furthermore, the support platform is provided with a demoulding groove, and the demoulding groove passes through the bottom of the casting box, and the demoulding plate is slidably connected in the demoulding groove.

[0013] Furthermore, a pair of sliders are threadedly connected to the screw rod, a pair of connecting rods are provided between the sliders and the stripping plate, a pair of connecting seats are slidably connected to the bottom of the stripping plate, both ends of the connecting rods are rotatably connected to the sliders and the connecting seats respectively, and the pair of connecting rods form an X-shaped structure and are rotatably connected.

[0014] Furthermore, a telescopic rod is slidably connected inside the connecting rod, a positioning bead is fixedly installed on one side of the connecting rod, a plurality of slots are opened on the side of the telescopic rod, and the positioning bead end of the positioning bead passes through the connecting rod and can be snapped into the slot.

[0015] The utility model proposes a sand casting compacting device, which has the beneficial effects that: the utility model is provided with a hydraulic cylinder for driving a compacting plate to compact the casting sand in the casting box to improve the density and strength of the casting sand, and is also provided with a demoulding component which drives a pair of sliding blocks to drive a pair of connecting rods to move, so that the demoulding plate can rise and then eject the compacted casting sand in the casting box, thereby avoiding the situation that the casting sand is difficult to be taken out manually and can also speed up the casting efficiency, and a telescopic rod is also provided on the connecting rod, so that the height of the demoulding plate can be adjusted to adapt to the compacted casting sand of different thicknesses to prevent the thinner casting sand from being unable to be ejected out of the casting box, and the utility model is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of area A;

[0019] Figure 4 It is a cross-sectional view of the stripping plate of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the telescopic rod of the utility model.

[0021] In the figure: 1. base; 11. support frame; 12. support plate; 2. casting box; 3. demoulding plate; 4. hydraulic cylinder; 41. cross plate; 42. guide rod; 43. compaction plate; 44. buffer spring; 5. support table; 6. demoulding assembly; 61. motor; 62. screw rod; 63. demoulding groove; 64. slider; 65. connecting rod; 66. connecting seat; 67. telescopic rod; 671. slot; 68. positioning ball. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-5A sand casting compacting device comprises a base 1, a casting box 2 and a stripper plate 3. A support frame 11 is fixedly installed on the top of the base 1, a hydraulic cylinder 4 is fixedly installed on the top of the support frame 11, and a cross plate 41 is fixedly installed on the axial end of the hydraulic cylinder 4 passing through the support frame 11. The top of the base 1 is located in the support frame 11 and the casting box 2 is fixedly installed through a support platform 5. The stripper plate 3 is provided in the casting box 2. Casting sand for casting is placed in the casting box 2, and the compacting plate 43 is driven by the hydraulic cylinder 4 to compact the casting sand. Considering that the compacted casting sand is not convenient to be taken out manually, the demoulding assembly 6 can be used to conveniently and quickly take out the compacted casting sand from the casting box 2, thereby accelerating the casting efficiency.

[0024] A demoulding assembly 6 is provided on the top of the base 1 , and the demoulding assembly 6 is used to drive the demoulding plate 3 to rise and fall, and can also adjust the lifting height of the demoulding plate 3 .

[0025] Furthermore, a pair of support plates 12 are fixedly installed on the top of the base 1, and the support platform 5 is fixedly installed on the top of the support plate 12. Guide rods 42 are slidably connected to both sides of the cross plate 41. The two ends of the guide rods 42 are respectively fixedly connected to the top of the inner wall of the support frame 11 and the top of the support platform 5. There is a certain distance between the pair of support plates 12 and the base 1, which provides an installation space for the demolding assembly 6. The guide rods 42 play a supporting and positioning role to assist the compacting plate 43 in compacting the casting sand.

[0026] Furthermore, a compacting plate 43 is fixedly installed at the bottom of the horizontal plate 41 between a pair of guide rods 42, and a buffer spring 44 is sleeved on the outer periphery of the guide rods 42. The two ends of the buffer spring 44 are respectively fixedly connected to the bottom of the horizontal plate 41 and the top of the support platform 5, and the buffer spring 44 plays a role in buffering, supporting and controlling the compaction strength of the compacting plate 43.

[0027] In more detail, the demolding assembly 6 includes a motor 61, which is fixedly installed on the top of the base 1 next to the support plate 12. The shaft end of the motor 61 passes through the support plate 12 and is fixedly installed with a screw rod 62, which is rotatably connected to a pair of support plates 12.

[0028] In general, the support platform 5 is provided with a demoulding groove 63, and the demoulding groove 63 passes through the bottom of the casting box 2, and the demoulding plate 3 is slidably connected in the demoulding groove 63. Under normal circumstances, the demoulding plate 3 is flush with the inner bottom surface of the casting box 2, and the area of ​​the demoulding plate 3 is smaller than the inner bottom surface area of ​​the casting box 2. The purpose is to ensure that most of the pressure applied by the compacting plate 43 when compacting the casting sand is borne by the casting box 2 and the support plate 12, so as to avoid damage to the connecting rod 65 when pressure is applied to the demoulding plate 3 due to its excessive area.

[0029] Specifically, a pair of sliders 64 are threadedly connected to the screw rod 62, a pair of connecting rods 65 are provided between the sliders 64 and the stripping plate 3, a pair of connecting seats 66 are slidably connected to the bottom of the stripping plate 3, two ends of the connecting rods 65 are rotatably connected to the sliders 64 and the connecting seats 66 respectively, the pair of connecting rods 65 are in an X-shaped structure and are rotatably connected, and the motor 61 is electrically connected to an external power supply;

[0030] In detail, the screw rod 62 is a double-headed screw rod, and a pair of sliders 64 are respectively threadedly connected to the two ends of the screw rod 62. The motor 61 drives the pair of sliders 64 to move. The pair of sliders 64 are fixed at both ends of the connecting rod 65 and will not rotate with the screw rod 62, so that they can move toward or away from each other to drive the pair of connecting rods 65. In addition, the pair of connecting rods 65 are in a rotationally connected relationship, and the other end of the pair of connecting rods 65 is in an ascending or descending state when driven by the pair of sliders 64, thereby driving the demolding plate 3 to rise and fall, thereby achieving the demolding effect.

[0031] Finally, a telescopic rod 67 is slidably connected inside the connecting rod 65, a positioning bead 68 is fixedly installed on one side of the connecting rod 65, and a plurality of slots 671 are opened on the side of the telescopic rod 67. The positioning bead end of the positioning bead 68 passes through the connecting rod 65 and can be snapped into the slot 671. The length of the telescopic rod 67 can be adjusted by the positioning bead 68 and the slot 671. The advantage is that the length of the connecting rod 65 can be changed to adapt to compacted casting sand of different thicknesses. Considering that if the height of the connecting rod 65 is not enough, the thinner casting sand may not be pushed out of the casting box 2, the telescopic rod 67 can avoid such a situation.

[0032] Working method: When working, the casting sand is put into the casting box 2, and then the hydraulic cylinder 4 drives the cross plate 41 to drive the compacting plate 43 to compact the casting sand in the casting box 2, and then the length of the telescopic rod 67 is adjusted by the positioning ball 68 and the slot 671, and finally the motor 61 drives the screw rod 62 to rotate and drive a pair of sliders 64 to move toward each other. The pair of sliders 64 will drive the other ends of the pair of connecting rods 65 to rise during the movement toward each other. The pair of connecting rods 65 are driven by the sliders 64 to drive the stripping plate 3 to rise and push the compacted casting sand out of the casting box 2 to complete the demoulding.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sand casting compaction device, comprising a base (1), a casting box (2) and a stripper plate (3), characterized in that: A support frame (11) is fixedly mounted on the top of the base (1), a hydraulic cylinder (4) is fixedly mounted on the top of the support frame (11), an axial end of the hydraulic cylinder (4) passes through the support frame (11) and a transverse plate (41) is fixedly mounted thereon, the top of the base (1) is located inside the support frame (11) and the casting box (2) is fixedly mounted thereon via a support platform (5), and the casting box (2) is provided with the stripping plate (3); Wherein, a demoulding assembly (6) is provided on the top of the base (1), and the demoulding assembly (6) is used to drive the demoulding plate (3) to rise and fall, and can also adjust the lifting height of the demoulding plate (3).

2. A sand casting compaction device according to claim 1, characterized in that: A pair of support plates (12) are fixedly mounted on the top of the base (1), the support platform (5) is fixedly mounted on the top of the support plates (12), guide rods (42) are slidably connected to both sides of the cross plate (41), and the two ends of the guide rods (42) are respectively fixedly connected to the top of the inner wall of the support frame (11) and the top of the support platform (5).

3. A sand casting compaction device according to claim 2, characterized in that: A compacting plate (43) is fixedly installed at the bottom of the transverse plate (41) between a pair of guide rods (42), and a buffer spring (44) is sleeved on the periphery of the guide rods (42). The two ends of the buffer spring (44) are respectively fixedly connected to the bottom of the transverse plate (41) and the top of the support platform (5).

4. A sand casting compaction device according to claim 2, characterized in that: The demoulding assembly (6) comprises a motor (61), which is fixedly mounted on the top of the base (1) and located next to the support plate (12). The shaft end of the motor (61) passes through the support plate (12) and is fixedly mounted with a screw rod (62), and the screw rod (62) is rotatably connected to a pair of support plates (12).

5. A sand casting compaction device according to claim 1, characterized in that: The support platform (5) is provided with a demoulding groove (63), and the demoulding groove (63) passes through the bottom of the casting box (2), and the demoulding plate (3) is slidably connected in the demoulding groove (63).

6. A sand casting compaction device according to claim 4, characterized in that: A pair of sliders (64) are threadedly connected to the screw rod (62); a pair of connecting rods (65) are provided between the sliders (64) and the stripping plate (3); a pair of connecting seats (66) are slidably connected to the bottom of the stripping plate (3); two ends of the connecting rods (65) are rotatably connected to the sliders (64) and the connecting seats (66) respectively; the pair of connecting rods (65) are in an X-shaped structure and are rotatably connected.

7. A sand casting compaction device according to claim 6, characterized in that: A telescopic rod (67) is slidably connected inside the connecting rod (65), a positioning bead (68) is fixedly installed on one side of the connecting rod (65), a plurality of slots (671) are opened on the side of the telescopic rod (67), and the positioning bead end of the positioning bead (68) passes through the connecting rod (65) and can be snapped into the slot (671).

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