Precoated sand casting mold

Abstract

The utility model provides a precoated sand casting mold which comprises a fixed mold and a movable mold, the fixed mold is arranged on a fixed plate, two ends of the movable mold are symmetrically arranged on two vertical plates, a guide assembly is arranged between the vertical plates and the fixed plate, and a driving device for driving the vertical plates to further drive the movable mold to be close to or far away from the fixed mold is arranged at one end, far away from the fixed plate, of each vertical plate; an overturning assembly for driving the movable mold to overturn is arranged between the vertical plate and the movable mold; and an ejection assembly for ejecting a finished product is arranged on the movable mold. The guide assembly can play a role in guiding the stroke of the movable mold, it is ensured that the movable mold and the fixed mold are precisely assembled, after a sand core is formed and cooled, the driving device can drive the movable mold to be away from the fixed mold, the overturning assembly can drive the movable mold to overturn by 90 degrees, and the movable mold is overturned by 90 degrees. And then, the ejection assembly ejects the finished product out of the cavity of the movable mold to complete falling of the finished product, and a conveying belt can be further arranged below the movable mold, so that assembly line type stripping work is completed.

Description

Technical Field

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

[0002] Coated sand has high strength and toughness, good fluidity and low expansion. It is suitable for manufacturing complex shell molds and shell cores, and is used in the production of various precision castings with complex structures. Coated sand has good thermal stability and strong resistance to sand sticking. The castings produced with it have a smooth surface and high dimensional accuracy. Coated sand has strong applicability and can be used for casting various alloys such as cast iron, cast steel, and cast aluminum.

[0003] The existing coated sand mold is not convenient for demoulding the product, and is often demoulded manually, so the labor intensity of the workers is very high, and the product output is slow, which affects the work efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of the utility model is to provide a coated sand casting mold to solve the problems in the prior art that the coated sand mold is not convenient for demoulding the product, the labor intensity of the workers is very high, and the product output is slow, affecting work efficiency.

[0005] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0006] A coated sand casting mold comprises a fixed mold and a movable mold, wherein the fixed mold is arranged on a fixed plate, and two vertical plates are symmetrically arranged at both ends of the movable mold, a guide component is arranged between the vertical plate and the fixed plate, and a driving device is arranged at one end of the vertical plate away from the fixed plate to drive the vertical plate and then drive the movable mold to approach or move away from the fixed mold; a turning component is arranged between the vertical plate and the movable mold to turn over; and an ejection component for ejecting a finished product is arranged on the movable mold.

[0007] To implement the above technical solution, the guide assembly described in the present application can guide the stroke of the movable mold to ensure accurate mold closing between the movable mold and the fixed mold. After the sand core is formed and cooled, the driving device will drive the movable mold away from the fixed mold. The flipping assembly can drive the movable mold to flip 90 degrees, and then the ejection assembly ejects the finished product from the cavity of the movable mold to complete the removal of the finished product. A conveyor belt can also be set under the movable mold to complete the assembly line-style material removal work.

[0008] In one embodiment of the utility model, the flip assembly includes a rotating rod symmetrically arranged on the two vertical plates, a rotating sleeve rotatably arranged on the rotating rod and fixed on the movable mold; a connecting plate connecting the two vertical plates, a flip cylinder arranged on the connecting plate, and the output end of the flip cylinder is hinged on the movable mold; the flip cylinder can push the movable mold and make the movable mold rotate along the rotating rod.

[0009] To implement the above technical solution, the number of flip cylinders described in the present application is preferably two, which are symmetrically arranged at both ends of the movable mold. The extension of the flip cylinder can drive the movable mold to rotate along the rotating rod, thereby facilitating the finished product to fall off from the cavity. The contraction of the flip cylinder makes the core and the cavity correspond to each other, thereby completing the mold closing action.

[0010] In one embodiment of the utility model, the guide assembly includes a guide rod fixed on the fixed plate and passing through the vertical plate, and a slide rail located at the lower end of the vertical plate. The driving device can drive the vertical plate to move along the slide rail, thereby completing the mold closing or mold opening between the movable mold and the fixed mold.

[0011] To implement the above technical solution, guide rods are symmetrically provided on the two vertical plates, and preferably two guide rods are provided on each vertical plate, so as to ensure the stability of the vertical plate during the movement along the slide rail driven by the driving device.

[0012] In one embodiment of the utility model, the movable mold is provided with a plurality of groups of cavities, and the fixed mold is correspondingly provided with a plurality of groups of cores, and the cavities and the cores are provided with feed ports communicating with the outside.

[0013] To implement the above technical solution, in order to improve the molding efficiency of the coated sand mold, several groups of cores and cavities can be correspondingly arranged on the movable mold and the fixed mold, so that multiple sand cores can be completed in one mold opening, which greatly improves the work efficiency.

[0014] In one embodiment of the utility model, the ejection assembly includes a top plate, a plurality of ejector rods arranged on the top plate, and a push cylinder arranged on the top plate, and the push cylinder can drive the ejector rods to extend out of the cavity and eject the finished product in the cavity.

[0015] To implement the above technical solution, in order to prevent the finished product from being embedded in the cavity, an ejector assembly is provided, which can push the finished product out of the cavity. During operation, the contraction of the ejector cylinder can cause the ejector rod to extend from the cavity to facilitate the removal of the finished product. The extension of the ejector cylinder can cause the ejector rod to be recovered, thereby facilitating the closing of the mold.

[0016] As described above, a coated sand casting mold of the utility model has the following beneficial effects: the guide assembly described in the present application can guide the stroke of the movable mold to ensure the precise mold closing between the movable mold and the fixed mold. After the sand core is formed and cooled, the driving device will drive the movable mold away from the fixed mold. The flipping assembly can drive the movable mold to flip 90 degrees, and then the ejection assembly ejects the finished product from the cavity of the movable mold to complete the falling off of the finished product. A conveyor belt can also be set under the movable mold to complete the assembly line-style material removal work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the structure of the utility model.

[0018] Figure 2 Shown is another structural schematic diagram of the utility model.

[0019] Component number description

[0020] 1. Fixed mold; 2. Moving mold; 3. Fixed plate; 4. Vertical plate; 5. Driving device; 6. Rotating rod; 7. Rotating sleeve; 8. Connecting plate; 9. Flip cylinder; 10. Guide rod; 11. Slide rail; 12. Cavity; 13. Core; 14. Feed port; 15. Ejector plate; 16. Ejector rod; 17. Push cylinder. DETAILED DESCRIPTION

[0021] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] See also Figure 1 to Figure 2 The utility model provides a coated sand casting mold, comprising a fixed mold 1 and a movable mold 2, the fixed mold 1 is arranged on a fixed plate 3, and on two vertical plates 4 symmetrically arranged at both ends of the movable mold 2, a guide component is arranged between the vertical plate 4 and the fixed plate 3, and a driving device 5 for driving the vertical plate 4 and then driving the movable mold 2 to approach or move away from the fixed mold 1 is arranged at one end of the vertical plate 4 away from the fixed plate 3; a turning component for driving the movable mold 2 to turn over is arranged between the vertical plate 4 and the movable mold 2; and an ejection component for ejecting a finished product is arranged on the movable mold 2.

[0023] The guide assembly described in the present application can guide the stroke of the movable mold 2 to ensure that the movable mold 2 and the fixed mold 1 are accurately molded. After the sand core is formed and cooled, the driving device 5 will drive the movable mold 2 away from the fixed mold 1, and the flipping assembly can drive the movable mold 2 to flip 90 degrees, and then the ejection assembly ejects the finished product from the cavity 12 of the movable mold 2 to complete the removal of the finished product. A conveyor belt can also be set under the movable mold 2 to complete the assembly line-style material removal work.

[0024] The flip assembly includes a rotating rod 6 symmetrically arranged on the two vertical plates 4, a rotating sleeve 7 rotatably arranged on the rotating rod 6 and fixed on the movable mold 2; a connecting plate 8 connecting the two vertical plates 4, and a flip cylinder 9 arranged on the connecting plate 8, the output end of the flip cylinder 9 is hinged on the movable mold 2; the flip cylinder 9 can push the movable mold 2 and make the movable mold 2 rotate along the rotating rod 6.

[0025] The flip cylinders 9 described in the present application are preferably two, symmetrically arranged at both ends of the movable mold 2. The extension of the flip cylinder 9 can drive the movable mold 2 to rotate along the rotating rod 6, so as to facilitate the finished product to fall off from the cavity 12. The flip cylinder 9 contracts to make the core 13 and the cavity 12 correspond to each other, thereby completing the mold closing action.

[0026] The guide assembly includes a guide rod 10 fixed on the fixed plate 3 and passing through the vertical plate 4, and a slide rail 11 located at the lower end of the vertical plate 4. The driving device 5 can drive the vertical plate 4 to move along the slide rail 11, thereby completing the mold closing or mold opening between the movable mold 2 and the fixed mold 1.

[0027] Guide rods 10 are symmetrically arranged on the two vertical plates 4 , and preferably two guide rods 10 are arranged on each vertical plate 4 , so as to ensure the stability of the vertical plates 4 during the movement along the slide rails 11 driven by the driving device 5 .

[0028] The movable mold 2 is provided with a plurality of groups of cavities 12, and the fixed mold 1 is provided with a plurality of groups of cores 13 correspondingly. The cavities 12 and the cores 13 are provided with feed ports 14 connected to the outside. In order to improve the molding efficiency of the coated sand mold, a plurality of groups of cores 13 and cavities 12 can be provided correspondingly on the movable mold 2 and the fixed mold 1, so that a plurality of sand cores can be completed in one mold opening, which greatly improves the work efficiency.

[0029] The ejection assembly includes a top plate 15, a plurality of ejector rods 16 disposed on the top plate 15, and a push cylinder 17 disposed on the top plate 15. The push cylinder 17 can drive the ejector rods 16 to extend out of the cavity 12 and eject the finished product in the cavity 12.

[0030] In order to prevent the finished product from being embedded in the cavity 12, an ejector assembly is provided, which can push the finished product out of the cavity 12. During operation, the contraction of the ejector cylinder 17 can cause the ejector rod 16 to extend from the cavity 12 to facilitate the removal of the finished product. The extension of the ejector cylinder 17 can cause the ejector rod 16 to be recovered, thereby facilitating the mold closing operation.

[0031] The guide assembly in the utility model can guide the stroke of the movable mold 2 to ensure that the movable mold 2 and the fixed mold 1 are accurately molded. After the sand core is formed and cooled, the driving device 5 will drive the movable mold 2 away from the fixed mold 1, and the flip assembly can drive the movable mold 2 to flip 90 degrees, and then the ejection assembly ejects the finished product from the cavity 12 of the movable mold 2 to complete the removal of the finished product. A conveyor belt can also be set under the movable mold 2 to complete the assembly line-style material removal work.

[0032] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A coated sand casting mold, comprising a fixed mold and a movable mold, characterized in that: The fixed mold is arranged on a fixed plate, two vertical plates are symmetrically arranged at both ends of the movable mold, a guide assembly is arranged between the vertical plate and the fixed plate, and a driving device is arranged at one end of the vertical plate away from the fixed plate to drive the vertical plate and thus drive the movable mold to approach or move away from the fixed mold; A turning assembly for driving the movable mold to turn over is provided between the vertical plate and the movable mold; The movable mold is provided with an ejection assembly for ejecting the finished product.

2. The coated sand casting mold according to claim 1, characterized in that: The flip assembly includes a rotating rod symmetrically arranged on the two vertical plates, and a rotating sleeve rotatably arranged on the rotating rod and fixed on the movable mold; A connecting plate connecting the two vertical plates, a flip cylinder arranged on the connecting plate, and an output end of the flip cylinder is hinged on the movable mold; The flip cylinder can push the movable mold and make the movable mold rotate along the rotating rod.

3. The coated sand casting mold according to claim 1, characterized in that: The guide assembly includes a guide rod fixed on the fixed plate and passing through the vertical plate, and a slide rail located at the lower end of the vertical plate. The driving device can drive the vertical plate to move along the slide rail, thereby completing the mold closing or mold opening between the movable mold and the fixed mold.

4. The coated sand casting mold according to claim 1, characterized in that: The movable mold is provided with a plurality of groups of cavities, and the fixed mold is correspondingly provided with a plurality of groups of cores. The cavities and the cores are provided with feed ports communicating with the outside.

5. The coated sand casting mold according to claim 4, characterized in that: The ejection assembly comprises an ejector plate, a plurality of ejector rods arranged on the ejector plate, and an ejection cylinder arranged on the ejector plate. The ejection cylinder can drive the ejector rods to extend out of the cavity and eject the finished product in the cavity.

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