CN211135417U

CN211135417U - Casting mould of air condition compressor piston

Info

Publication number: CN211135417U
Application number: CN201922114974.3U
Authority: CN
Inventors: 赵冠阳; 王渊; 张�杰; 马毅光
Original assignee: Shanxi Huaxiang Group Co ltd
Current assignee: Shanxi Huaxiang Group Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-31
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a casting mould of an air condition compressor piston, which comprises at least one mould unit, a first mould plate and a second mould plate, wherein the mould unit comprises a special-shaped riser and a shutoff piece which are arranged on the first mould plate and a piston casting mould which is arranged on the second mould plate; the special-shaped riser is a closed ring comprising an upper connecting part, a blank holder part and a lower connecting part, wherein the blank holder part comprises at least one first arc-shaped section and a first extension section matched with the upper connecting part, the radian of the first arc-shaped section is the same as that of the piston casting mold, the first arc-shaped section and the outer edge of the piston casting mold are arranged in an overlapping mode, and the overlapping width of the first arc-shaped section and the outer edge of the piston casting mold is 0.5 mm-3 mm; therefore, on the premise of fully meeting the feeding effect, the overlapping width between the riser and the casting body is reduced, so that the riser automatically falls off in the subsequent machining process without being polished, the subsequent cleaning efficiency is greatly improved, and the manual strength is reduced.

Description

Casting mould of air condition compressor piston

Technical Field

The utility model relates to a casting industry field indicates a casting mould of air condition compressor piston very much.

Background

The casting technology is one of the main methods for obtaining mechanical product blanks at present, and because the manufacturing cost is low and the process flexibility is high, complex-shaped and large castings can be obtained, and the casting technology occupies a large proportion in the mechanical manufacturing. The main casting process is that molten metal is poured into casting mould and cooled to solidify to obtain the part with required shape and performance. The more important point is that the casting shrinks in the process of changing from liquid to solid, and if the liquid is not supplemented in time, shrinkage cavities are generated in the casting, so that the casting is scrapped. Therefore, the liquid must be replenished to the casting to prevent shrinkage cavities before the casting solidifies, and this portion of the liquid replenished on the casting, commonly referred to as the riser, is seen to play a critical role in the design of the riser in the quality of the casting. And the feeder head also determines the complexity of the later cleaning work of the casting.

The casting process of the air conditioner compressor piston has the advantages that the finished piston is made of alloy materials, the contraction coefficient of the finished piston is large, the feeding requirement is high, the effective feeding effect is achieved, the size of the existing riser is large, the area of the joint of the riser and a casting body is large, and the riser and the casting body are directly pressed to the edge and filled with water. In order to satisfy the feeding effect under the general condition, the overlapping thickness between riser and the casting body reaches 3 to 5 millimeters, and after the molten iron solidifies, need beat for a long time with the hammer and just can make casting and riser separation, and still further polish to the surface, this makes the casting process become more complicated undoubtedly, has increased manufacturing cost and intensity of labour.

In order to solve the above technical problems, a new casting mold is needed to meet the requirement of feeding effect and improve the yield, so that the subsequent cleaning process of the casting is simplified, and the quality and efficiency of the casting process are improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a casting mould of air condition compressor piston promptly.

The technical means adopted by the utility model are as follows.

The utility model provides a casting mould of air condition compressor piston, it contains an at least mould unit, and this mould unit contains the dysmorphism rising head and the closure plate of setting on first template and sets up the piston casting mould on the second template. The special-shaped riser is a closed ring comprising an upper connecting part, a blank holder part and a lower connecting part; the edge pressing part comprises at least one first arc-shaped section and a first extension section matched with the upper connecting part, the first arc-shaped section is overlapped with the outer edge of the piston casting mold, the overlapping width of the first arc-shaped section is 0.5 mm to 3 mm, and the radian of the first arc-shaped section is the same as that of the overlapping part of the piston casting mold. The intercepting piece is arranged between the special-shaped risers of the upper die unit and the lower die unit, one end of the intercepting piece is connected with the lower connecting part of the upper casting unit, and the other end of the intercepting piece is connected with the upper connecting part of the other casting unit.

Wherein the casting mould of the air conditioner compressor piston further has the following characteristics.

The upper connecting part and the lower connecting part are horizontally arranged, and the first extending section is longitudinally arranged. The width of the first arc-shaped section arranged in an overlapping manner with the outer edge of the piston casting mold is further preferably between 1 mm and 2 mm. The width of the cut-off piece matches the width of the lower connecting portion. The edge pressing part also comprises a second arc-shaped section positioned on the other side and a second extension section matched with the upper connecting part, the second arc-shaped section is overlapped with the outer edge of the piston casting mold, the overlapped width of the second arc-shaped section is 0.5 mm to 3 mm, and the radian of the first arc-shaped section is the same as that of the overlapped part of the piston casting mold.

The utility model discloses produced beneficial effect as follows.

The utility model discloses the innovation provides a casting mould of air condition compressor piston, through shape and the blank pressing mode that changes rising head blank pressing district, under the prerequisite of fully provided feeding effect for overlap the width and reduce between rising head and foundry goods body, thereby realized that the rising head drops in the automation of follow-up course of working and need not polish, promoted follow-up cleaning efficiency greatly, reduced artifical intensity. And because of adopting the gap type blank pressing water inlet mode, the water inlet becomes narrow, and the molten iron can filter out larger sand slag impurities in the water in the flowing-in process, thereby reducing the rejection rate of the casting in the casting process; furthermore, because the riser is more attached to the casting body, the whole width of the riser after connection is reduced, and the riser can be arranged at two sides or a single side edge, so that the die on the casting template is more flexibly arranged, more casting bodies can be arranged in a limited space, and the casting production efficiency is improved.

Drawings

Fig. 1 is the utility model discloses a casting mould unit structure sketch map of air condition compressor piston.

Fig. 2 is the utility model relates to a casting mould's of air condition compressor piston first template planar structure sketch map.

Fig. 3 is a schematic diagram of the planar structure of the second mold plate of the casting mold for the air condition compressor piston according to the present invention.

Detailed Description

The following detailed description of the casting mold for the air condition compressor piston according to the present invention, its specific implementation, structure, features and effects, with reference to the accompanying drawings, is as follows:

as shown in fig. 2 and fig. 3, the present invention is a schematic structural diagram of a first template and a second template of a casting mold for an air condition compressor piston; it can be seen that at least one mould unit 100 is included, characterised in that the mould unit 100 comprises a profiled riser 1 and a shut-off piece 2 arranged on a first profile plate and a piston casting mould 3 arranged on a second profile plate.

As shown in fig. 1, the casting mold unit of the air conditioner compressor piston has a schematic structure, the irregular riser 1 is a closed ring shape including an upper connecting portion 11, a blank holder portion 12 and a lower connecting portion 13, the blank holder portion 12 includes at least one first arc-shaped section 121 and a first extending section 122 matched with the upper connecting portion 11, the first arc-shaped section 121 is overlapped with the outer edge of the piston casting mold 3, the overlapping width of the first arc-shaped section 121 is 0.5 mm to 3 mm, and the radian of the first arc-shaped section 121 is the same as the radian of the overlapping portion of the piston casting mold 3. Wherein the preferred width of the first arc-shaped section 121 overlapping the outer edge of the piston casting mold 3 is further preferably between 1 mm and 2 mm. When the first mould plate and the second mould plate are buckled, a gap type blank pressing is formed between the special-shaped riser 1 and the piston casting mould 3, and water is filled in, the thickness of the overlapped part between the special-shaped riser and the piston casting mould can be further reduced to 1-2 mm, the joint is very thin, so that the riser and the casting mould can be automatically disconnected through the rolling process in the roller when molten iron passes through the cooling roller after being poured, the process of breaking and disconnecting by a manual hammer is omitted, and the surface of a casting does not need to be further polished. And the gap type water inlet can intercept larger sand slag particle impurities in the process of injecting molten iron, thereby reducing the impurities in the finished casting product and improving the yield.

As shown in FIG. 2, the first template structure of the casting mold for the air condition compressor piston of the present invention is schematically illustrated, the above-mentioned intercepting piece 2 is disposed between the specially-shaped risers 1 of the upper and lower mold units 100, one end of the intercepting piece 2 is connected to the lower connecting portion 13 of the upper casting unit, and the other end is connected to the upper connecting portion 11 of the other casting unit. And the width of the intercepting piece 2 is matched with that of the lower connecting part 13. The cutoff piece 2 provided between the upper and lower mold units 100 may serve to control the flow rate of molten iron during the downward flow of molten iron through the respective risers.

Meanwhile, as shown in fig. 3, the upper connecting portion 11 and the lower connecting portion 13 are both horizontally disposed, and the first extending section 122 is vertically disposed. Therefore, the feeding molten iron capacity can be ensured under the condition that the width of the riser is not increased, and meanwhile, the contact area is increased to play a role in buffering when molten iron falls between the upper riser and the lower riser.

As shown in fig. 2, the blank holder 12 further includes a second arc-shaped section 123 located on the other side and a second extending section 124 matched with the upper connecting portion 11, the second arc-shaped section 123 is overlapped with the outer edge of the piston casting mold 3 on the other side, the overlapping width of the second arc-shaped section 123 is 0.5 mm to 3 mm, and the radian of the second arc-shaped section 123 is the same as the radian of the overlapping portion of the piston casting mold 3. Because above-mentioned opposite sex rising head has unilateral blank pressing or bilateral blank pressing structure, when arranging on the template, the size of utilization template that can be better, more mould units of discharging on same template to can once only cast more foundry goods finished products, promote production efficiency greatly.

Above-mentioned casting mould of air condition compressor piston through shape and the blank pressing mode that changes rising head blank pressing district, under the prerequisite of fully provided feeding effect for overlap width reduces between rising head and the foundry goods body, thereby has realized that the rising head drops in the automation of follow-up course of working and need not polish, has promoted follow-up cleaning efficiency greatly, has reduced artificial strength. And because of adopting the gap type blank pressing water inlet mode, the water inlet becomes narrow, and the molten iron can filter out larger sand slag impurities in the water in the flowing-in process, thereby reducing the rejection rate of the casting in the casting process; furthermore, because the riser is more attached to the casting body, the whole width of the riser after connection is reduced, and the riser can be arranged at two sides or a single side edge, so that the die on the casting template is more flexibly arranged, more casting bodies can be arranged in a limited space, and the casting production efficiency is improved.

Claims

1. Casting mould of air condition compressor piston, contain at least one mould unit (100), its characterized in that: the die unit (100) comprises a special-shaped riser (1) and an intercepting piece (2) which are arranged on a first template and a piston casting die (3) which is arranged on a second template;

the special-shaped riser (1) is in a closed ring shape and comprises an upper connecting part (11), a blank holder part (12) and a lower connecting part (13), the blank holder part (12) comprises at least one first arc-shaped section (121) and a first extension section (122) matched with the upper connecting part (11), the first arc-shaped section (121) and the outer edge of the piston casting mold (3) are arranged in an overlapping mode, the overlapping width of the first arc-shaped section (121) is 0.5 mm-3 mm, and the radian of the first arc-shaped section (121) is identical to that of the overlapping part of the piston casting mold (3);

the intercepting piece (2) is arranged between the special-shaped risers (1) of the upper and lower die units (100), one end of the intercepting piece (2) is connected with the lower connecting part (13) of the upper casting unit, and the other end of the intercepting piece is connected with the upper connecting part (11) of the other casting unit.

2. The casting mold of the air conditioner compressor piston as claimed in claim 1, wherein the upper connecting portion (11) and the lower connecting portion (13) are horizontally disposed in a transverse direction, and the first extension (122) is longitudinally disposed.

3. Casting mold for air condition compressor pistons, according to claim 2, characterized in that the width of the first arc-shaped segment (121) arranged in overlapping relation with the outer edge of the piston casting mold (3) is further preferably between 1 mm and 2 mm.

4. Casting mold for air condition compressor pistons according to claim 1 or 2 or 3, characterized in that the width of the shut-off piece (2) matches the width of the lower connecting part (13).

5. The casting mold of the air conditioner compressor piston as claimed in claim 1, 2 or 3, wherein the crimping portion (12) further comprises a second arc-shaped section (123) at the other side and a second extension section (124) engaged with the upper connecting portion (11), the second arc-shaped section (123) is overlapped with the outer edge of the other side piston casting mold (3) with an overlapping width of 0.5 mm to 3 mm, and the radian of the second arc-shaped section (123) is the same as the radian of the overlapping portion of the piston casting mold (3).