TWI547324B - Method of manufacturing a helical casting and casting structure with molding the same - Google Patents

Description

Method for making spiral casting, mold structure and model thereof

The invention relates to a spiral casting, in particular to a method for making a spiral casting, a mold structure and a model thereof.

Compressors have been widely used in everyday electrical products, such as refrigerant compressors, air compressors, refrigeration compressors or dry compressors, etc., which are all operated by the compression performance of the compressor, and the compressor is compressed. The good performance depends mainly on the quality of the rotor. Therefore, the rotor can also be called the heart of the compressor. In addition to affecting the compression performance of the compressor, it also affects its service life and cost.

Conventional compressor rotor manufacturing process, a complete spiral sand mold, a minimum of two sand mold modules are required to be combined, and a wooden model or metal model used to manufacture a spiral sand mold, at least Two modules are needed to construct. Taking wood as a model, for example, the wooden model is composed of multiple wooden modules. They are composed together, and each wood module is decomposable or combined. After the sand mold is completed, the aforementioned wood modules can be taken out one by one from the sand mold, and the sand mold modules taken out one by one can be combined again to re-manufacture the other sand mold.

However, in the manufacturing process of the conventional rotor, there are the following problems. Since the spiral sand mold is composed of a plurality of sand mold modules, it is not only cumbersome and time consuming in the process of disassembly and assembly, but also disassembled. In the process, the sand mold is easily worn out, which leads to poor precision and quality of the finished product. In addition, in the process of assembly, the sand mold modules often have problems such as offset, misalignment and expansion. Moreover, the risk of sand mold collapse and the like often occur during the dismantling of the sand mold and the wood module, and it is urgent to improve.

An object of the present invention is to provide a method for producing a spiral casting, a mold structure and a model thereof, which can not only reduce the manufacturing process but shorten the production time, and can effectively ensure the quality of the finished product and reduce the manufacturing cost.

In order to achieve the above object, the present invention provides a method for making a spiral casting, the method steps comprising: a) preparing a spiral casting model and a sand mold container; b) arranging the sand mold container corresponding to the spiral casting model So that the spiral casting model is surrounded by the sand mold container; c) filling a mold sand into the sand mold container to cover the spiral casting model and setting; d) moving the sand mold container away from the spiral casting model Moving to cause the spiral casting model to rotate to disengage from the shaped molding sand.

In order to achieve the above object, the present invention provides a casting of a spiral casting The mold structure comprises a spiral casting model and a sand mold container, the spiral casting model comprising a plate and a spiral body, one end of the spiral body is connected to the seat plate, and the spiral body has an outer spiral; the sand mold container Surrounding the spiral body and forming on the seat plate, the spiral body is capable of rotating relative to the sand mold container through a bearing.

In order to achieve the above object, the present invention provides a spiral casting model comprising a plate and a spiral body, one end of the spiral body being connected to the seat plate and having an outer spiral pattern, the spiral body being capable of rotating through a bearing .

The invention also has the following effects, since the sand mold container is a single individual, the assembly deviation, the casting mold expansion and the like can be avoided, thereby improving the quality of the spiral casting. Since the spiral casting model does not need to be disassembled, it can be directly taken out from the sand mold, thereby greatly reducing the number of processes such as repetitive disassembly and assembly, and avoiding problems such as assembly variations.

1, 1a, 1b, 1c‧‧‧ spiral casting model

10‧‧‧ seat board

10a, 10b, 10c‧‧‧ rotating plate

100a‧‧‧ shaft seat

100b, 100c‧‧ disc

101a‧‧‧ bearing

101b, 101c‧‧‧ vertical bearings

102a‧‧‧ shaft

11‧‧‧Fixed column

12‧‧‧ Positioning column

13‧‧‧Support column

14‧‧‧Tip

20‧‧‧Spiral body

20a, 20b, 20c‧‧‧solid spiral body

200c‧‧‧Shaft axis

21‧‧‧ hollow spiral segment

211‧‧‧Outer spiral

22‧‧‧ shaft section

23‧‧‧ Bearing

C‧‧‧ interval

3‧‧‧ sand mold container

31‧‧‧Tier

5‧‧‧ molding sand

7‧‧‧Base

A-d‧‧‧ steps

Figure 1 is a flow chart of the fabrication of the present invention.

Fig. 2 is a schematic view showing the combination of a spiral casting model and a mold structure of the present invention.

Figure 3 is a cross-sectional view showing a combination of a spiral casting model and a mold structure of the present invention.

Fig. 4 is a cross-sectional view (I) showing a state of use of the spiral casting model and the mold structure of the present invention.

Fig. 5 is a cross-sectional view showing the state of use of the spiral casting model and the mold structure of the present invention (2).

Figure 6 is a cross-sectional view showing another embodiment of a spiral casting model of the present invention.

Figure 7 is a cross-sectional view showing a further embodiment of a spiral casting model of the present invention.

Figure 8 is a cross-sectional view showing a further embodiment of a spiral casting model of the present invention.

The detailed description and technical content of the present invention are set forth in the accompanying drawings.

The invention provides a method for manufacturing a spiral casting, a mold structure and a model thereof, as shown in FIG. 1 to FIG. 5, wherein the method steps include:

a) preparing a spiral casting model 1 and a sand mold container 3; the spiral casting model 1 in this step mainly comprises a plate 10 and a spiral body 20, and the seat plate 10 of the embodiment is substantially a rectangular body. It may be made of a metal material such as aluminum, but may not be limited by the foregoing materials, and may be other materials. A fixing post 11 is inserted in the middle of the seat plate 10, and is formed on the upper surface of the seat plate 10 and with the fixing post 11. A plurality of positioning posts 12 are disposed at a position separated by a distance, and a support column 13 is respectively connected below the four corners of the seat plate 10 for adjusting the stability of the seat plate 10 in a horizontal orientation and a vertical orientation. Furthermore, a plurality of lifting rods 14 are respectively connected to the seat plates 10 and the two sides.

The spiral body 20 can be made of wood, metal, plastic steel or rubber. The spiral body 20 of the embodiment mainly comprises a hollow spiral segment 21, a shaft segment 22 and a plurality of bearings 23, wherein the bearing 23 can also be a single one. The surface of the hollow spiral segment 21 has an outer spiral 211, and the bearings 23 are spaced apart from the hollow snail. The inside of the rotary segment 21 is sandwiched between the inner wall of the hollow spiral segment 21 and the fixed column 11, so that the hollow spiral segment 21 can be rotated relative to the fixed column 11 (as shown in FIG. 5), the hollow spiral segment One end of the 21 is connected to the upper surface of the seat plate 10, and the other end of the hollow spiral portion 21 is fixed to the shaft portion 22 by a screwing member such as a screw.

The sand mold container 3 is substantially a cylindrical body, but is not limited to such a shape. It may also be a rectangular or regular polygon. A pair of ears 31 are respectively connected to the two corresponding positions on the upper portion of the sand mold container 3 for pulling. The point of force when the mold is applied.

b) the sand mold container 3 is covered corresponding to the spiral casting model 1, so that the spiral casting model 1 is surrounded by the sand mold container 3; as shown in Fig. 2, in this step, the sand mold container 3 is corresponding to the spiral casting model 1 cover. Therefore, the spiral casting mold 1 is surrounded by the sand mold container 3, at this time, the sand mold container 3 is attached to the seat plate 10, and the bottom end thereof is formed inside each positioning post 12, but not in this type. As a limitation, it can be another alternative.

c) filling a mold sand 5 into the sand mold container 3 to cover the spiral casting model 1 and setting it; as shown in Fig. 4, in this step, the molding sand 5 such as surface sand, fine sand and coarse sand is in accordance with a certain The order and proportion are filled into the sand mold container 3, and are covered around the outer periphery of the spiral casting mold 1, and then the mold sand 5 is tapped with a tool to cause the molding sand 5 to be solidified.

d) The sand mold container 3 is moved away from the spiral casting mold 1 so that the spiral casting mold 1 is rotated to be detached from the sizing mold 5. Referring to FIG. 5, in this step, after passing through the aforementioned ear 31 through a tool such as a rod or a rod, the sand mold container 3 is slowly lifted upward and moved away from the spiral casting model 1 At this time, the seat plate 10 is kept stationary, and the hollow spiral section 21 and the shaft section 22 are transmitted through the aforementioned bearing 23, and are detachable from the fixed mold sand 5 by being rotated with respect to the fixed column 11.

Referring to FIG. 6, the spiral casting model of the present invention may be the same as the above embodiment. The spiral casting model 1a of the present embodiment is replaced by a rotating plate 10a instead of the seat plate 10 of the foregoing embodiment, and is replaced by a solid spiral body 20a. In the hollow spiral section 21 and the shaft section 22 of the foregoing embodiment, a shaft seat 100a is protruded from the lower surface of the rotating plate 10a, a bearing 101a is mounted inside the shaft seat 100a, and a shaft 102a is inserted into the bearing 101a, and the solid spiral is inserted. The lower end surface of the body 20a is fixed to the upper surface of the rotating plate 10a by screws, and the rotating plate 10a is fixed to the base 7 through the shaft 102a.

When the sand mold container 3 is slowly lifted upward in use and moved away from the spiral casting mold 1a, since the shaft 102a is fixed on the base 7 without rotating, the rotating plate 10a and the solid spiral body 20a at this time are Through the bearing 101a, rotation can be generated with respect to the bearing 101a, and the solid spiral body 20a is detached from the sizing sand 5.

Referring to FIG. 7, the spiral casting model 1b of the present embodiment replaces the seat plate 10 of the foregoing embodiment with a rotating plate 10b, and replaces the hollow spiral segment 21 and the shaft segment 22 of the foregoing embodiment with a solid spiral body 20b. A disc 100b is protruded from a lower surface of the rotating plate 10b, and a plurality of vertical bearings 101b are connected to the periphery of the disc 100b. The lower end surface of the solid spiral body 20b is fixed to the upper surface of the rotating plate 10b by screws, and is rotated. The plate 10b is erected through the respective vertical bearings 101b. Above a pedestal 7.

When it is used, the sand mold container 3 is slowly lifted upward and moved away from the spiral casting mold 1b. At this time, the rotating plate 10b and the solid spiral body 20b are rotated on the base 7 through the vertical bearing 101b, thereby The solid spiral body 20b is detached from the sizing sand 5.

Referring to FIG. 8, the spiral casting model 1c of the present embodiment replaces the seat plate 10 of the foregoing embodiment with a rotating plate 10c, and replaces the hollow spiral segment 21 and the shaft segment 22 of the foregoing embodiment with a solid spiral body 20c. A disc 100c is disposed below the rotating plate 10c, and a plurality of vertical bearings 101c are connected to the periphery of the disc 100c. The lower end of the solid spiral body 20c extends with a protruding shaft 200c. The protruding shaft 200c is connected to the disc through the rotating plate 10c. 100c, and through the abutment of each vertical bearing 101c and the rotating plate 10c, a gap C is formed between the disk 100c and the rotating plate 10c, and the rotating plate 10c is erected above the base 7 through the disk 100c.

In use, when the sand mold container 3 is slowly lifted upward and moved away from the spiral casting mold 1c, the rotating plate 10c and the solid spiral body 20c at this time pass through the vertical bearing 101c and the protruding shaft 200c on the base 7. The rotation causes the solid spiral body 20c to be detached from the sizing sand 5.

In summary, the method for manufacturing a spiral casting, the mold structure and the model thereof can achieve the intended use purpose, and solve the lack of the conventional, and because of the novelty and the progressiveness, fully meet the requirements of the invention patent application. In accordance with the Patent Law, please apply for the patent in detail, so as to protect the rights of the inventor.

10‧‧‧ seat board

11‧‧‧Fixed column

13‧‧‧Support column

20‧‧‧Spiral body

21‧‧‧ hollow spiral segment

211‧‧‧Outer spiral

22‧‧‧ shaft section

23‧‧‧ Bearing

3‧‧‧ sand mold container

31‧‧‧Tier

5‧‧‧ molding sand

Claims (15)

A method for making a spiral casting, the method steps comprising: a) preparing a spiral casting model and a sand mold container, the spiral casting model comprising a plate and a spiral body connecting the seat plate, the spiral body having an outer spiral b) the sand mold container corresponding to the spiral body is covered and formed on the seat plate such that the spiral body is surrounded by the sand mold container; c) a mold sand is filled into the sand mold container to cover The spiral body is shaped and shaped; and d) moving the sand mold container away from the spiral casting mold, the spiral body is permeable to the mold sand and detached from the mold sand through the outer spiral and a bearing . A mold structure of a spiral casting, comprising: a spiral casting model comprising: a plate; and a spiral body, the one end is connected to the seat plate, the spiral body has an outer spiral; and a sand mold container surrounds the spiral body And formed on the seat plate, the spiral body is capable of rotating relative to the sand mold container through the outer spiral and a bearing. The mold structure of the spiral casting of claim 2, wherein the seat plate is inserted with a fixing column, the spiral body comprises a hollow spiral segment, the outer spiral is formed on the surface of the hollow spiral segment, and the bearing is received therein The interior of the hollow spiral section is sandwiched between the hollow spiral section and the fixed column. The mold structure of the spiral casting of claim 3, wherein the spiral body further comprises a shaft section fixed to the hollow spiral section away from the seat plate. The mold structure of the spiral casting according to claim 3, wherein a plurality of positioning columns are disposed at a position of the seat plate at a distance from the fixing column, and the sand mold container is formed in each of the positioning columns. A supporting column is respectively connected to each corner of the seat plate, and a plurality of lifting rods are respectively connected to the mutually corresponding sides of the seat plate. The casting structure of the spiral casting according to claim 2, wherein the seat plate is a rotating plate that is interlocked with the spiral body, the spiral body is a solid body, and the rotating plate protrudes from a shaft seat, and the bearing is mounted on A shaft is inserted into the bearing seat, and the rotating plate is fixed to a base through the shaft. The casting structure of the spiral casting according to claim 2, wherein the seat plate is a rotating plate that is interlocked with the spiral body, the spiral body is a solid body, and the rotating plate has a disk protruding therefrom, wherein the bearing surrounds the A plurality of vertical bearings connected to the periphery of the disc, the rotating plate being erected on a base through each of the vertical bearings. The casting structure of the spiral casting according to claim 2, wherein the seat plate is a rotating plate interlocking with the spiral body, the spiral body is a solid body, and the rotating plate is provided with a disk, wherein the bearing surrounds the circle a plurality of vertical bearings connected to the periphery of the disk, the solid spiral body extending a convex shaft, the protruding shaft connecting the disk through the rotating plate, and passing through the abutting of each of the vertical bearing and the rotating plate, in the circle A space is formed between the disk and the rotating plate, and the rotating plate is erected on the base through the disk. A spiral casting model comprising: a plate; and a spiral body connected to the seat plate at one end, the spiral body having an outer spiral pattern, and the spiral body is capable of rotating through the outer spiral pattern and a bearing. The spiral casting model of claim 9, wherein the seat plate is inserted with a fixing column, the spiral body comprises a hollow spiral segment, the outer spiral is formed on the surface of the hollow spiral segment, and the bearing is received in the hollow spiral The inside of the segment is sandwiched between the hollow spiral segment and the fixed post. The spiral casting model of claim 10, wherein the spiral body further comprises a shaft segment secured to the hollow spiral segment away from the seat plate. The spiral casting model of claim 10, wherein a plurality of positioning posts are disposed at a position of the seat plate and spaced apart from the fixing post, and a support column is respectively connected to each corner of the seat plate. A plurality of lifting rods are respectively connected to the mutually corresponding sides of the seat plate. The spiral casting model of claim 9, wherein the seat plate is a rotating plate that is coupled to the spiral body, the spiral body is a solid body, and the rotating plate protrudes from a shaft seat, and the bearing is mounted on the shaft A shaft is inserted into the seat, and the rotating plate is fixed to a base through the shaft. The spiral casting model according to claim 9, wherein the seat plate is a rotating plate that is interlocked with the spiral body, the spiral body is a solid body, and the rotating plate protrudes from a disk, wherein the bearing surrounds the disk a plurality of vertical bearings connected at a periphery, the rotating plate passing through each of the vertical plates The bearing is erected on a base. The spiral casting model according to claim 9, wherein the seat plate is a rotating plate that is interlocked with the spiral body, the spiral body is a solid body, and the rotating plate is provided with a disk, wherein the bearing surrounds the circumference of the disk a plurality of connected vertical bearings, the solid spiral body extending a convex shaft, the convex shaft connecting the disc through the rotating plate, and passing through the abutting of each of the vertical bearing and the rotating plate to A space is formed between the rotating plates, and the rotating plate is erected on the base through the disk.