Rapid cooling piston casting mold

Abstract

The utility model discloses a quick cooling piston casting mould, which comprises an upper mould piece, a bottom mould piece and an inner core piece, the bottom mould piece comprises a bottom mould upper block and a bottom mould lower block, the surface of the bottom mould upper block is provided with a first cooling channel, and the surface of the bottom mould lower block is provided with a second cooling channel. And the first cooling channel and the second cooling channel form a complete cooling passage. A sealing assembly is arranged between the first cooling channel and the second cooling channel and comprises two sealing rings, a plurality of deflection pieces are arranged on the outer sides of the sealing rings, rotating shafts are arranged in the middles of the deflection pieces, and torsional springs are arranged at the ends of the rotating shafts. The first cooling channel and the second cooling channel form a complete cooling passage, so that the cooling area of the piston can be increased, the cooling speed of the piston is increased, the cooling efficiency is improved, the cooling time is shortened, and the production benefit of the piston is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting molds, and particularly relates to a casting mold for rapidly cooling pistons. Background Art

[0002] A piston is a reciprocating part in the cylinder block of an automobile engine. The basic structure of the piston can be divided into a top part, a head part, and a skirt part. The top of the piston is the main part that forms the combustion chamber, and its shape is related to the selected combustion chamber form. When producing aluminum pistons, casting molds are often required.

[0003] At present, most of the piston rapid cooling molds on the market have low cooling efficiency. When producing pistons, it often takes a long time to cool, which will greatly reduce the production efficiency of pistons, thereby increasing production costs and reducing production benefits. Summary of the Utility Model

[0004] In view of the problem that the cooling efficiency of the mold in the prior art is not high and it takes a long time to cool, the utility model proposes the following technical solutions:

[0005] A casting mold for rapidly cooling pistons, comprising: an upper mold part, a bottom mold part, and an inner core part. The top of the inner core part is movably inserted into the bottom mold part, and a stop collar is arranged between the inner core part and the bottom mold. The bottom mold part comprises a bottom mold upper block and a bottom mold lower block. A first cooling channel is formed on the surface of the bottom mold upper block, and a second cooling channel is formed on the surface of the bottom mold lower block. The first cooling channel and the second cooling channel form a complete cooling path.

[0006] A sealing assembly is arranged between the first cooling channel and the second cooling channel. The sealing assembly comprises two sealing rings, which are respectively fixedly connected to the first cooling channel and the second cooling channel. A plurality of deflection pieces are arranged on the outer sides of the sealing rings. A rotating shaft is arranged in the middle of the deflection pieces, and a torsion spring is arranged at the end of the rotating shaft.

[0007] Preferably, a liquid inlet is arranged at one end of the first cooling channel, and a liquid outlet is arranged at the other end of the second cooling channel.

[0008] Preferably, the upper mold part comprises an upper mold upper block and an upper mold lower block. The upper mold lower block is sleeved on the surface of the upper mold upper block, and the bottom of the upper mold lower block is movably inserted into the bottom mold upper block.

[0009] Preferably, the inner core part comprises an inner core upper block and an inner core lower block, and an inner core cooling channel is arranged in the middle of the inner core lower block.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The first cooling passage and the second cooling passage form a complete cooling path, which can increase the cooling area of the piston, thereby accelerating the cooling speed of the piston, increasing the cooling efficiency while reducing the cooling time, and further improving the production efficiency of the piston.

[0012] 2. The sealing component can seal the first cooling passage and the second cooling passage to ensure the integrity of the cooling path, prevent the coolant from leaking out through the gap between the first cooling passage and the second cooling passage, and ensure the cooling effect on the piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure shows the overall structural schematic diagram of the embodiment.

[0014] Figure 2 The figure shows the enlarged view of part A in the embodiment Figure 1 of the embodiment.

[0015] In the figure: 11, upper bottom die block; 12, lower bottom die block; 13, first cooling passage; 14, second cooling passage; 15, sealing component; 151, sealing ring; 152, deflector; 153, rotating shaft; 16, liquid inlet; 17, liquid outlet; 21, upper upper die block; 22, upper lower die block; 31, upper inner core block; 32, lower inner core block; 33, inner core cooling passage; 40, spigot ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings of the specification.

[0017] Embodiment

[0018] Figure 1 - Figure 2 In the rapid-cooling piston casting mold of the embodiment, it includes: an upper die part, a bottom die part, and an inner core part. The top of the inner core part is movably inserted into the bottom die part, and a spigot ring 40 is provided between the inner core part and the bottom die. The bottom die part includes an upper bottom die block 11 and a lower bottom die block 12. The surface of the upper bottom die block 11 is provided with a first cooling passage 13, and the surface of the lower bottom die block 12 is provided with a second cooling passage 14. The first cooling passage 13 and the second cooling passage 14 form a complete cooling path.

[0019] A sealing component 15 is provided between the first cooling passage 13 and the second cooling passage 14. The sealing component 15 includes two sealing rings 151. The two sealing rings 151 are respectively fixedly connected to the first cooling passage 13 and the second cooling passage 14. A plurality of deflectors 152 are provided on the outer sides of the sealing rings 151. A rotating shaft 153 is provided in the middle of the deflector 152, and a torsion spring is provided at the end of the rotating shaft 153.

[0020] Figure 1 In it, a liquid inlet 16 is provided at one end of the first cooling channel 13, and a liquid outlet 17 is provided at the other end of the second cooling channel.

[0021] Figure 1 In it, the upper mold part includes an upper mold upper block 21 and an upper mold lower block 22. The upper mold lower block 22 is sleeved on the surface of the upper mold upper block 21, and the bottom of the upper mold lower block 22 is movably inserted into the bottom mold upper block 11.

[0022] Figure 1 In it, the inner core part includes an inner core upper block 31 and an inner core lower block 32, and an inner core cooling channel 33 is provided in the middle of the inner core lower block 32.

[0023] Working principle: When assembling the bottom mold part, the two sealing rings 151 contact and press each other to close the first cooling channel 13 and the second cooling channel 14. When assembling the bottom mold part, the two deflection pieces 152 on the same side contact and push each other. The deflection piece 152 rotates around the rotation axis 153 so that the other end of it presses the sealing ring 151, thereby increasing the sealing effect of the two sealing rings 151. When cooling, the coolant is injected into the cooling path from the liquid inlet 16 at a high place to quickly cool the internal piston, and the coolant after cooling flows out from the liquid outlet 17 at a low place.

[0024] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. Rapid cooling of piston casting mold, including: An upper mold part, a bottom mold part and an inner core part, wherein the top of the inner core part is movably inserted into the bottom mold part, and a stop ring (40) is provided between the inner core part and the bottom mold, and the bottom mold part comprises a bottom mold upper block (11) and a bottom mold lower block (12), a first cooling channel (13) is provided on the surface of the bottom mold upper block (11), and a second cooling channel (14) is provided on the surface of the bottom mold lower block (12), and the first cooling channel (13) and the second cooling channel (14) form a complete cooling passage; A closing component (15) is provided between the first cooling channel (13) and the second cooling channel (14), the closing component (15) comprising two sealing rings (151), the two sealing rings (151) being fixedly connected to the first cooling channel (13) and the second cooling channel (14) respectively, a plurality of deflection plates (152) being provided on the outside of each of the sealing rings (151), a rotating shaft (153) being provided in the middle of the deflection plates (152), and a torsion spring being provided at the end of the rotating shaft (153).

2. The rapid cooling piston casting mold according to claim 1, characterized in that: A liquid inlet (16) is provided at one end of the first cooling channel (13), and a liquid outlet (17) is provided at the other end of the second cooling channel.

3. The rapid cooling piston casting mold according to claim 1, characterized in that: The upper mold component comprises an upper mold upper block (21) and an upper mold lower block (22); the upper mold lower block (22) is sleeved on the surface of the upper mold upper block (21); and the bottom of the upper mold lower block (22) is movably inserted into the bottom mold upper block (11).

4. The rapid cooling piston casting mold according to claim 1, characterized in that: The inner core component comprises an inner core upper block (31) and an inner core lower block (32), and an inner core cooling channel (33) is provided in the middle of the inner core lower block (32).

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