CN213002483U

CN213002483U - Three-stroke pneumatic stripping device

Info

Publication number: CN213002483U
Application number: CN202021544719.9U
Authority: CN
Inventors: 王洪刚
Original assignee: Shandong Ruihao Heavy Machinery Co ltd
Current assignee: Shandong Ruihao Heavy Machinery Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-20
Anticipated expiration: 2030-07-30

Abstract

The utility model belongs to the technical field of the die-casting technique of making and specifically relates to a pneumatic drawing device of three-stroke, include the support frame and locate the sand box on the support frame, be equipped with drawing actuating mechanism in the support frame, drawing actuating mechanism includes last mould actuating mechanism and lower mould actuating mechanism, be equipped with abnormal shape mould in the sand box, abnormal shape mould includes mould and bed die. The device solves the problem of mechanization of irregular split mold stripping; the casting precision and efficiency of the product are improved; the die drawing inclination and the machining allowance of the product are reduced, the near-net-shape casting purpose is realized, and the production cost of the product is greatly reduced.

Description

Three-stroke pneumatic stripping device

Technical Field

The utility model belongs to the technical field of the die-casting technique of making and specifically relates to a three-stroke pneumatic drawing device.

Background

Sand casting is a casting process that produces castings in sand molds. Steel, iron and most nonferrous metal castings can be obtained by sand casting. The molding material used for sand casting is cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and the casting mould can adapt to single-piece production, batch production and mass production of castings, and is a basic process in casting production for a long time. Stripping is an important step in sand casting, but for castings with special shapes, a general stripping device cannot be used, and manual stripping has low efficiency and poor sand mould damage quality, so how to realize mechanical stripping of casting models with irregular shapes and split structures becomes a difficult point.

SUMMERY OF THE UTILITY MODEL

The utility model provides a three-stroke pneumatic drawing device has effectively solved the problem of irregular shape drawing.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a pneumatic die stripping device of three-stroke, includes a frame and locates the sand box on the frame, be equipped with drawing actuating mechanism in the frame, drawing actuating mechanism includes last mould actuating mechanism and lower mould actuating mechanism, goes up mould actuating mechanism and lower mould actuating mechanism's setting and can realize the operation of branch mould, be equipped with heterotypic mould in the sand box, heterotypic mould can set up according to actual need, heterotypic mould includes mould and bed die, goes up mould and bed die and corresponds with last mould actuating mechanism and lower mould actuating mechanism respectively.

Preferably, the upper die driving mechanism comprises an air cylinder and a first ejector rod arranged on the air cylinder, and the first ejector rod comprises an outer sleeve and an inner tube. The lifting of the first ejector rod is controlled through the air cylinder.

And as optimization, the lower die driving mechanism comprises a second ejector rod and a transverse supporting rod arranged on the second ejector rod, and a limiting hole with the same diameter as that of the inner tube is arranged on the transverse supporting rod. When the outer sleeve of the first ejector rod jacks up the transverse supporting rod, the second ejector rod begins to rise.

As optimization, the upper die is of a U-shaped structure, and the top end of the upper die is provided with an outward flaring section.

Preferably, the lower die is of a laterally symmetrical J-shaped structure, and the bottom end of the lower die is identical to the outward flaring section of the upper die in structure.

The utility model provides a pair of pneumatic drawing-off device of three-stroke, simple structure, reasonable in design has following beneficial effect:

1. the problem of mechanization of irregular split die drawing is solved;

2. the casting precision and efficiency of the product are improved;

3. the die drawing inclination and the machining allowance of the product are reduced, the near-net-shape casting purpose is realized, and the production cost of the product is greatly reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Wherein: 1. the device comprises a support frame, 2, a sand box, 3, an upper die, 4, a lower die, 5, a cylinder, 6, an outer sleeve, 7, an inner pipe, 8, a second ejector rod, 9, a transverse supporting rod, 10, a limiting hole, 11 and an outward flaring section.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, 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 application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

For convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate that the directions of movement of the device or element are consistent with those of the drawings, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

As shown in fig. 1, the three-stroke pneumatic drawing device comprises a support frame 1 and a sand box 2 arranged on the support frame 1, wherein a drawing driving mechanism is arranged in the support frame 1, the drawing driving mechanism comprises an upper die driving mechanism and a lower die driving mechanism, the upper die driving mechanism and the lower die driving mechanism are arranged to realize die separation, a special-shaped die is arranged in the sand box 2, the special-shaped die can be arranged according to actual needs, the special-shaped die comprises an upper die 3 and a lower die 4, and the upper die 3 and the lower die 4 correspond to the upper die driving mechanism and the lower die driving mechanism respectively.

Go up mould actuating mechanism and include cylinder 5 and locate the first ejector pin on cylinder 5, first ejector pin includes outer tube 6 and inner tube 7. The lifting of the first mandril is controlled by the air cylinder 5.

The lower die driving mechanism comprises a second ejector rod 8 and a transverse supporting rod 9 arranged on the second ejector rod 8, and a limiting hole 10 with the same diameter as that of the inner tube 7 is formed in the transverse supporting rod 9. When the outer sleeve 6 of the first ejector pin jacks up the transverse strut 9, the second ejector pin 8 begins to rise.

The upper die 3 is of a U-shaped structure, and the top end of the upper die is provided with an outward flaring section 11.

The lower die 4 is of a J-shaped structure which is symmetrical left and right, and the bottom end of the lower die is the same as the outward flaring section 11 of the upper die in structure.

The working principle is as follows: the steps of this embodiment in use are as follows:

1. after the sand mold of the product is manufactured, starting a compressed air valve, and starting the air cylinder 5 to work;

2. the cylinder 5 drives the first ejector rod to ascend, and then the upper die 3 is jacked up;

3. the cylinder 5 continues to work, when the first ejector rod jacks up the transverse supporting rod 9 on the second ejector rod 8, the second ejector rod 8 rises and jacks up the sand box 2, and the lower die 4 naturally falls on the workbench;

4. after the sand box 2 is hoisted away, the upper mould 3 hoisted on the cantilever crane is rotated to the original position;

5. the air is compressed in the air exhaust cylinder 5, and the upper die 3, the lower die 4 and the sand box 2 are respectively reset;

6. and (5) starting new sand mold manufacturing, and circulating the steps.

The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a pneumatic drawing-die device of three-stroke, includes the support frame and locates the sand box on the support frame, its characterized in that: the support frame is internally provided with a stripping driving mechanism, the stripping driving mechanism comprises an upper die driving mechanism and a lower die driving mechanism, the sand box is internally provided with a special-shaped die, and the special-shaped die comprises an upper die and a lower die.

2. The three-stroke pneumatic stripping apparatus as set forth in claim 1, wherein: go up mould actuating mechanism and include the cylinder and locate the first ejector pin on the cylinder, first ejector pin includes outer tube and inner tube.

3. The three-stroke pneumatic stripping apparatus as set forth in claim 2, wherein: the lower die driving mechanism comprises a second ejector rod and a transverse supporting rod arranged on the second ejector rod, and a limiting hole with the same diameter as that of the inner tube is formed in the transverse supporting rod.

4. A three-stroke pneumatic stripping apparatus as claimed in claim 3, wherein: the upper die is of a U-shaped structure, and an outward flaring section is arranged at the top end of the upper die.

5. The three-stroke pneumatic stripping apparatus as set forth in claim 4, wherein: the lower die is of a J-shaped structure which is symmetrical left and right, and the bottom end of the lower die is the same as the outward flaring section of the upper die in structure.