CN114406198A

CN114406198A - Cast aluminum die

Info

Publication number: CN114406198A
Application number: CN202210023155.1A
Authority: CN
Inventors: 蒋培庚; 郭成成
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-04-29

Abstract

The invention relates to the field of cast aluminum molds, in particular to a cast aluminum mold; the pouring device comprises a base, a lower die, an upper die and a pouring opening, wherein the lower die is arranged on the upper part of the base, and the upper die is detachably and fixedly connected to the upper surface of the lower die; a through hole is formed in the upper surface of the upper die, and a pouring opening is fixedly connected to the through hole in the upper surface of the upper die; the upper wall of the upper die is provided with an air storage tank, and a notch of the air storage tank is fixedly connected with a metal block; the right part and the upper part of the gas storage tank are respectively provided with a first rectangular groove and a second rectangular groove, the first rectangular groove and the second rectangular groove are internally connected with a first sliding block and a second sliding block in a sliding and sealing manner, the right end of the first rectangular groove is provided with a vertical groove, and the vertical groove is internally connected with a stop block in a sliding and sealing manner; according to the invention, the air storage groove, the metal block, the first sliding block and the second sliding block are arranged, so that the air hole gap phenomenon of the formed aluminum piece is reduced on the basis of reducing the waste of aluminum liquid at the pouring opening.

Description

Cast aluminum die

Technical Field

The invention relates to the field of cast aluminum molds, in particular to a cast aluminum mold.

Background

The aluminum casting is a technological method that after a pure aluminum or aluminum alloy ingot is prepared according to standard component proportion, the pure aluminum or aluminum alloy ingot is changed into aluminum alloy liquid or a molten state through manual heating, then aluminum liquid or the aluminum alloy in the molten state is poured into a cavity through a professional mold or a corresponding technology, and an aluminum piece in a required shape is formed through cooling.

Among the prior art, when casting the shaping to cylinder type aluminium part, in order to make the complete breach that does not have of aluminium part shaping, can fill with pouring the mouth when pouring, can spill over from pouring the mouth even, cause the waste to aluminium liquid, if pour not enough probably cause the incomplete breach that contains of aluminium part shaping of cast.

In view of this, in order to overcome the above technical problems, the present invention designs a cast aluminum mold, which solves the above technical problems.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: during the cast aluminium, when pouring the mould into with the aluminium liquid that melts to cylinder type aluminium spare and casting the shaping, in order to make the complete not breach of aluminium spare shaping, can will pour the mouth and fill during pouring, can spill over from pouring the mouth even, cause the waste to aluminium liquid, if pour not enough probably cause the incomplete breach that contains of aluminium spare shaping of cast.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a cast aluminum mould which comprises a base, a lower mould, an upper mould and a pouring opening, wherein the lower mould is arranged at the upper part of the base, and the upper mould is detachably and fixedly connected to the upper surface of the lower mould; a through hole is formed in the upper surface of the upper die, and a pouring opening is fixedly connected to the through hole in the upper surface of the upper die;

the upper die is characterized in that the upper wall of the upper die is provided with an air storage groove, inert gas is placed in the air storage groove, and a notch of the air storage groove is fixedly connected with a metal block; the metal block has good heat-conducting property;

the right part and the upper part of the gas storage groove are respectively provided with a first rectangular groove and a second rectangular groove, the right part of the first rectangular groove is communicated with the through hole, a first channel is arranged between the right part of the first rectangular groove and the gas storage groove, and a second channel is arranged between the second rectangular groove and the gas storage groove;

the first rectangular groove and the second rectangular groove are internally connected with a first sliding block and a second sliding block in a sliding and sealing mode, the left side of the second sliding block is fixedly connected with a first clamping block 352, the left side of the second rectangular groove is provided with a first sliding groove matched with the first clamping block 352, the bottom ends of the first sliding block and the second sliding block are fixedly connected with one end of a spring, and the left wall of the first rectangular groove and the bottom wall of the second rectangular groove are respectively fixedly connected with the other end of the spring;

a vertical groove is formed in the right end of the first rectangular groove, a stop block is connected inside the vertical groove in a sliding and sealing mode, one end of a spring is fixedly connected to the bottom end of the stop block, and the other end of the spring is fixedly connected to the bottom wall of the vertical groove.

Preferably, the upper surface of the base is provided with a groove, a rotating unit is arranged between the base and the lower die, and the rotating unit comprises a motor, a bearing, a transmission shaft and a ball disc; the motor is arranged in the groove, an output shaft of the motor is fixedly connected with the transmission shaft, the bearing is arranged on the outer surface of the transmission shaft, the ball disc is fixedly connected with the upper surface of the base, a through hole is formed in the middle of the ball disc, and the top end of the transmission shaft penetrates through the through hole and is fixedly connected with the bottom wall of the lower die.

Preferably, No. three rectangular channels and No. two rectangular channels have been seted up respectively on the right part of gas storage tank and upper portion, the left part of No. three rectangular channels communicates with each other with the through-hole, has seted up No. three passageways between No. three rectangular channels right part and the gas storage tank, No. three inside sliding seal of rectangular channel is connected with No. three sliders, No. two fixture blocks 323 of No. three slider upper portion fixedly connected with, No. two spouts with No. two fixture block 323 complex are seted up on No. three rectangular channel top, No. three one end of slider bottom fixedly connected with spring, the other end of the left wall fixedly connected with spring of No. three rectangular channels.

Preferably, the upper die comprises an upper die holder and an upper die core, and the upper die holder and the upper die core are detachably and fixedly connected; the lower die comprises a lower die base and a lower die core, and the lower die base and the lower die core are detachably and fixedly connected.

Preferably, the upper mold core and the lower mold core contact portions are provided in a tooth-type fitting contact.

Preferably, the surfaces of the upper mold core, the lower mold core, the first sliding block and the third sliding block are coated with release agents.

The invention has the following beneficial effects:

1. according to the invention, the air storage groove, the metal block, the first sliding block and the second sliding block are arranged, so that the air hole gap phenomenon of the formed aluminum piece is reduced on the basis of reducing the waste of aluminum liquid at the pouring opening.

2. According to the cast aluminum mold, the rotating unit is arranged, so that the leftover materials formed at the contact surface of the upper mold and the lower mold can be cleaned, aluminum liquid can fill the whole mold, the risk that a molded aluminum piece has air hole defects is further reduced, and demolding is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

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

fig. 2 is an enlarged view of the inside of the upper wall of the upper die of the present invention.

In the figure: the die comprises a base 1, a lower die 2, a lower die holder 21, a lower die core 22, an upper die 3, a through hole 31, an air storage groove 32, a third rectangular groove 321, a third sliding block 322, a second clamping block 323, a metal block 33, a first rectangular groove 34, a first sliding block 341, a second rectangular groove 35, a second sliding block 351, a first clamping block 352, a vertical groove 36, a clamping block 37, an upper die holder 38, an upper die core 39, a pouring opening 4, a rotating unit 5, a motor 51, a bearing 52, a transmission shaft 53 and a ball disc 54.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

The invention provides a cast aluminum mould which comprises a base 1, a lower mould 2, an upper mould 3 and a pouring opening 4, wherein the lower mould 2 is arranged at the upper part of the base 1, and the upper mould 3 is detachably and fixedly connected to the upper surface of the lower mould 2; the upper surface of the upper die 3 is provided with a through hole 31, and a pouring opening 4 is fixedly connected to the through hole 31;

an air storage tank 32 is formed in the upper wall of the upper die 3, inert gas is placed in the air storage tank 32, and a metal block 33 is fixedly connected to the notch of the air storage tank 32; the metal block 33 has good heat conductivity; a pipeline communicated with the outside is arranged on one side of the gas storage tank 32 and is communicated with an external gas source to supplement gas in the gas storage tank 32 at any time;

the right part and the upper part of the gas storage groove 32 are respectively provided with a first rectangular groove 34 and a second rectangular groove 35, the right part of the first rectangular groove 34 is communicated with the through hole 31, a first channel is arranged between the right part of the first rectangular groove 34 and the gas storage groove 32, and a second channel is arranged between the second rectangular groove 35 and the gas storage groove 32;

a first sliding block 341 and a second sliding block 351 are connected inside the first rectangular groove 34 and the second rectangular groove 35 in a sliding and sealing manner, a first clamping block 352 is fixedly connected to the left side of the second sliding block 351, a first sliding groove matched with the first clamping block 352 is formed in the left side of the second rectangular groove 35, the bottom ends of the first sliding block 341 and the second sliding block 351 are fixedly connected with one end of a spring, and the left wall of the first rectangular groove 34 and the bottom wall of the second rectangular groove 35 are respectively fixedly connected with the other end of the spring;

no. one 34 right-hand members of rectangular channel have seted up vertical groove 36, and the inside sliding seal in vertical groove 36 is connected with dog 37, the one end of dog 37 bottom fixedly connected with spring, the other end of the diapire fixedly connected with spring of vertical groove 36.

When the aluminum casting mold is used for casting and molding aluminum parts, molten aluminum is injected into the mold from the pouring port 4, the mold is gradually filled with the molten aluminum, when the molten aluminum gradually rises and is closer to the upper mold 3, the metal block 33 on the upper wall of the upper mold 3 has good heat conductivity, the metal block 33 is gradually heated and rises in temperature, the temperature in the gas storage groove 32 rises, the inert gas in the gas storage groove 32 is heated and expands, the pressure in the gas storage groove 32 rises, the expanded inert gas pushes the second sliding block 351 in the second rectangular groove 35 through the second channel, the second sliding block 351 is slowly protruded, an operator can reduce the pouring speed, the pouring speed is prevented from being too high, the aluminum liquid is prevented from overflowing to cause aluminum liquid waste, and the reduction speed can be conveniently controlled; due to the matching limit of the first clamping block 352 and the first sliding groove, the second sliding block 351 cannot be completely flushed by gas to cause gas in the gas storage groove 32 to leak out, pouring can be stopped when aluminum liquid enters the through hole 31, so that redundant aluminum liquid cannot be accumulated in the pouring opening 4 and cannot overflow the aluminum liquid, the waste of the aluminum liquid is reduced, excessive waste materials cannot be formed at the pouring opening 4 after a workpiece is solidified and molded, and the subsequent processing difficulty of workers is reduced;

but because aluminium liquid does not pour fully will pour mouthful 4 and fill up, the shaping of aluminium spare probably appears the shaping incomplete defect such as containing the breach, because the existence of dog 37, when slider 351 motion is promoted by gas No. two, slider 341 is not promoted, at this moment accessible slider 351 makes the atmospheric pressure in the gas storage tank 32 further rise, and then rising atmospheric pressure makes slider 341 break the restriction of dog 37 and then extrudees the aluminium liquid in the through-hole 31, make the position that is not full of by aluminium liquid in the mould be full of by the extrusion, reduce the appearance of shaping aluminium spare gas pocket breach phenomenon.

As a specific embodiment of the present invention, a groove is formed in the base 1, a rotating unit 5 is arranged between the base 1 and the lower die 2, and the rotating unit 5 includes a motor 51, a bearing 52, a transmission shaft 53 and a ball disc 54; the motor 51 sets up inside the recess, and motor 51's output shaft and transmission shaft 53 fixed connection, bearing 52 establish at transmission shaft 53 surface, and ball dish 54 and base 1 upper surface fixed connection have seted up a through-hole in the middle of the ball dish 54, and transmission shaft 53 top is passed a through-hole and lower mould 2 diapire fixed connection.

The rotating unit 5 comprises a motor 51, a bearing 52, a transmission shaft 53 and a ball disc 54, when the rotating unit 5 works, the motor 51 is started, an output shaft of the motor 51 drives the transmission shaft 53 to rotate, and the transmission shaft 53 drives the lower die 2 fixedly connected with the transmission shaft 53 to rotate; the ball plate 54 is fixedly connected to the upper surface of the base 1, so that friction force applied to the lower die 2 in the rotating process is reduced, and energy loss is reduced;

after the whole mold is filled with aluminum liquid, the method is only suitable for pouring cylindrical aluminum pieces, the motor 51 is started to enable the upper mold 3 and the lower mold 2 to rotate slightly, the aluminum liquid can fill the whole mold in the rotating process, the risk that the formed aluminum pieces have air hole defects is further reduced, after the aluminum liquid is solidified and the workpiece is formed, a plurality of leftover materials can be formed at the contact position of the upper mold 3 and the lower mold 2, the aluminum pieces have the tendency of moving due to the circumferential force applied to the aluminum pieces in the rotating process, so that the connection between the leftover materials and the aluminum pieces can be partially disconnected, and the subsequent difficulty in cleaning the leftover materials by workers is reduced.

As a specific embodiment of the invention, a third rectangular groove 321 is formed below the first rectangular groove 34 at the right part of the air storage groove 32, the right part of the third rectangular groove 321 is communicated with the through hole 31, a third channel is formed between the left part of the third rectangular groove 321 and the air storage groove 32, a third sliding block 322 is connected in the third rectangular groove 321 in a sliding and sealing mode, a second clamping block 323 is fixedly connected to the upper part of the third sliding block 322, a second sliding groove matched with the second clamping block 323 is formed in the top end of the third rectangular groove 321, one end of a spring is fixedly connected to the bottom end of the third sliding block 322, and the other end of the spring is fixedly connected to the left wall of the third rectangular groove 321.

Along with the gradual rise of the aluminum liquid in the mold, the temperature in the air storage tank 32 also gradually rises, the inert gas in the air storage tank 32 is heated and expanded to enable the air pressure in the air storage tank 32 to rise, and the expanded inert gas pushes the third sliding block 322 in the third rectangular groove 321 through the third channel; no. three slider 322 stretch into through-hole 31, because No. two spacing cooperations of fixture block 323 and No. two spouts, make No. three slider 322 can not stretch out completely, can only the part is plugged up through-hole 31 to the projecting part, can reduce the speed that aluminium liquid pours into like this on the one hand, prevent to pour the speed and be drawn into the air too fast and cause the aluminium liquid to contain the bubble, make by the aluminium spare after the shaping contain the gas pocket defect, on the other hand can form the waste material and need get rid of when aluminium spare shaping back through-hole 31 part, because there is the breach between No. three slider 322's the waste material that sets up and the formed part, make things convenient for the workman to use the saw to get rid of the waste material of through-hole 31 part like this.

As a specific embodiment of the present invention, the upper mold 3 includes an upper mold base 38 and an upper mold core 39, and the upper mold base 38 and the upper mold core 39 are detachably and fixedly connected; the lower die 2 comprises a lower die base 21 and a lower die core 22, and the lower die base 21 and the lower die core 22 are detachably and fixedly connected;

the upper die holder 38 is detachably and fixedly connected with the upper die core 39, and the lower die holder 21 is detachably and fixedly connected with the lower die core 22; the upper die core 39 and the lower die core 22 of the die can be replaced, and the die cores can be replaced according to different shape requirements, so that the invention has wider application range.

As an embodiment of the present invention, the contacting portions of the upper core 39 and the lower core 22 are provided in a tooth-type fitting contact.

Go up mold core 39 and lower mold core 22 contact part and set up to the profile of tooth cooperation contact, make on the one hand mold core 39 and lower mold core 22 contact more firm, can not take place the skew at the rotation in-process, on the other hand the leftover bits that produce at the pouring in-process are thinner with the position of aluminium part contact and are convenient for clear up, and the aluminium part receives the trend that circumference power aluminium part can move at rotatory in-process this makes the leftover bits have a part disconnection with being connected of aluminium part, the clearance degree of difficulty of the follow-up pair leftover bits of workman has been reduced.

In one embodiment of the present invention, the surfaces of the upper mold core 39, the lower mold core 22, the first slider 341, and the third slider 322 are coated with a release agent.

The surfaces of the upper mold core 39 and the lower mold core 22 are coated with mold release agents, so that the aluminum piece is easy to release after being molded, and the first sliding block 341 and the third sliding block 322 are not stuck by the aluminum piece and are convenient to take the mold.

The working principle is as follows:

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cast aluminum mould, includes base (1), lower mould (2), goes up mould (3) and pours a mouthful (4), its characterized in that: the lower die (2) is arranged on the upper part of the base (1), and the upper surface of the lower die (2) is detachably and fixedly connected with an upper die (3); a through hole (31) is formed in the upper surface of the upper die (3), and a pouring opening (4) is fixedly connected to the through hole (31);

the upper wall of the upper die (3) is provided with an air storage groove (32), inert gas is placed in the air storage groove (32), and a notch of the air storage groove (32) is fixedly connected with a metal block (33); the metal block (33) has good heat-conducting property;

a first rectangular groove (34) and a second rectangular groove (35) are respectively formed in the right part and the upper part of the gas storage groove (32), the right part of the first rectangular groove (34) is communicated with the through hole (31), a first channel is formed between the right part of the first rectangular groove (34) and the gas storage groove (32), and a second channel is formed between the second rectangular groove (35) and the gas storage groove (32);

a first sliding block (341) and a second sliding block (351) are connected inside the first rectangular groove (34) and the second rectangular groove (35) in a sliding and sealing mode, a first clamping block (351) is fixedly connected to the left side of the second sliding block (351), a first sliding groove matched with the first clamping block (351) is formed in the left side of the second rectangular groove (35), one end of a spring is fixedly connected to the bottom ends of the first sliding block (341) and the second sliding block (351), and the other end of the spring is fixedly connected to the left wall of the first rectangular groove (34) and the bottom wall of the second rectangular groove (35) respectively;

a vertical groove (36) is formed in the right end of the first rectangular groove (34), a stop block (37) is connected to the inside of the vertical groove (36) in a sliding and sealing mode, one end of a spring is fixedly connected to the bottom end of the stop block (37), and the other end of the spring is fixedly connected to the bottom wall of the vertical groove (36).

2. The cast aluminum mold of claim 1, wherein: the upper surface of the base (1) is provided with a groove, a rotating unit (5) is arranged between the base (1) and the lower die (2), and the rotating unit (5) comprises a motor (51), a bearing (52), a transmission shaft (53) and a ball disc (54); the motor (51) is arranged in the groove, an output shaft of the motor (51) is fixedly connected with the transmission shaft (53), the bearing (52) is arranged on the outer surface of the transmission shaft (53), the ball disc (54) is fixedly connected with the upper surface of the base (1), a through hole (31) is formed in the middle of the ball disc (54), and the top end of the transmission shaft (53) penetrates through the through hole (31) and is fixedly connected with the bottom wall of the lower die (2).

3. The cast aluminum mold of claim 1, wherein: rectangular channel No. three (321) have been seted up to the below of rectangular channel No. one (34) in the right part of gas receiver (32), the left part and through-hole (31) of rectangular channel No. three (321) communicate with each other, have seted up No. three passageways between rectangular channel No. three (321) right part and the gas receiver (32), the inside sliding seal of rectangular channel No. three (321) is connected with No. three slider (322), No. two fixture blocks (323) of slider No. three (322) upper portion fixedly connected with, No. two spouts with No. two fixture block (323) complex are seted up on rectangular channel No. three (321) top, the one end of slider No. three (322) bottom fixedly connected with spring, the other end of the left wall fixedly connected with spring of rectangular channel No. three (321).

4. The cast aluminum mold of claim 1, wherein: the upper die (3) comprises an upper die base (38) and an upper die core (39), and the upper die base (38) is detachably and fixedly connected with the upper die core (39); the lower die (2) comprises a lower die base (21) and a lower die core (22), and the lower die base (21) and the lower die core (22) are detachably and fixedly connected.

5. A cast aluminium mould according to claim 3, wherein: the contact parts of the upper mold core (39) and the lower mold core (22) are arranged in tooth-type matching contact.

6. A cast aluminium mould according to claim 3, wherein: and release agents are coated on the surfaces of the upper mold core (39), the lower mold core (22), the first sliding block (341) and the third sliding block (322).