CN115870475A

CN115870475A - Die-casting die cavity structure capable of exhausting rapidly

Info

Publication number: CN115870475A
Application number: CN202211472988.2A
Authority: CN
Inventors: 屠琴琴; 沈国荣
Original assignee: Zhejiang Kangcheng Intelligent Technology Co ltd
Current assignee: Zhejiang Kangcheng Intelligent Technology Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-31

Abstract

The invention relates to the technical field of dies and discloses a die-casting die cavity structure capable of exhausting gas quickly, which comprises a fixed die and a movable die, wherein a feed pipe is fixedly arranged on the outer wall of one side of the fixed die, which is far away from the movable die, a press-injection punch head is movably arranged in one end of the feed pipe, which is far away from the fixed die, a cavity is arranged on the side wall surface of the fixed die, which is close to the movable die, an exhaust cavity is arranged in the fixed die in a penetrating manner, a suction box is arranged outside the fixed die, an exhaust pipe is arranged between the fixed die and the suction box, two ends of the exhaust pipe are respectively and fixedly connected with corresponding positions on the fixed die and the suction box, and the exhaust pipe is communicated with the exhaust cavity and the interior of the suction box. This kind of die casting die cavity structure that can exhaust fast can outwards take out the gas in the die cavity through the in-process of piston plate at the activity, prevents to press the drift and come too late the discharge with the air in the die cavity when extruding the metal raw materials in the feed pipe into the die cavity at a high speed to cause the inside gas pocket that appears of the metal casting that casts.

Description

Die-casting die cavity structure capable of exhausting rapidly

Technical Field

The invention relates to the technical field of dies, in particular to a die-casting die cavity structure capable of exhausting gas quickly.

Background

The die casting is a precise casting method for pressing molten metal into a metal die with a complex shape by utilizing high pressure, and a die casting piece with clear appearance outline, fine internal structure and excellent mechanical property is obtained under the action of high pressure boosting and pressure maintaining.

The die casting technology principle is that molten metal is pressed into a precise metal die cavity at high speed by utilizing high pressure, and the molten metal is cooled and solidified under the action of pressure to form a casting. Cold and hot chamber die casting are two basic modes of die casting technology. In cold chamber die casting, molten metal is poured into a die chamber by a manual or automatic pouring device, then an injection punch head moves forward to press the molten metal into a cavity, after the molten metal is solidified, a die casting die is opened, a casting is taken out, and a die casting cycle is completed.

The existing die-casting die still has the following problems in the using process:

1. because the high-speed filling and the quick cooling are carried out, the gas in the cavity cannot be exhausted in time, so that the die casting often has air holes and oxidized impurities, and the quality of the die casting is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an ion atomization device special for eye washing, which at least solves one of the problems in the background art, so that air in a cavity of a die is quickly discharged, and the quality of die castings cast by the die is further improved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a die casting die cavity structure that can exhaust fast, includes cover half and movable mould, keeps away from one side outer wall fixed mounting of movable mould on the cover half and has the inlet pipe, keeps away from the inside movable mounting of one end of cover half on the inlet pipe and press the drift and the movable mould matches the setting, and presses the outer wall fixed mounting of drift to have the injection pole, keeps away from one side wall fixed mounting of cover half on the movable mould and has the extrusion pole, and the side wall that is close to the movable mould on the cover half has seted up the die cavity, the inside of cover half is run through and has been seted up the exhaust chamber, and the inside intercommunication setting of exhaust chamber and die cavity, is provided with the suction box outside of cover half, is provided with the installation pole between cover half and the suction box, and the both ends of installation pole correspond position fixed connection on cover half and the suction box respectively, are provided with the exhaust tube between cover half and the suction box, and the inside intercommunication setting of exhaust chamber and suction box, and the inside movable mounting of suction box has the piston plate, and the bottom central point fixed connection of piston plate has the haulage rope, another end and the injection fixed connection of haulage rope.

Preferably, the inside symmetry of movable mould runs through and has seted up two heat dissipation chambeies, and the bottom fixed mounting of movable mould has the water storage box, and the heat dissipation chamber sets up with the inside intercommunication of water storage box, and the last fixed surface of movable mould installs the aqueduct, and the aqueduct is the both ends of U-shaped structure and aqueduct and corresponds the fixed position connection with the heat dissipation chamber respectively, and the bottom fixed mounting of water storage box has the water pump, and the equal fixed mounting in both ends of water pump has communicating pipe, corresponds fixed position connection on another end of communicating pipe and the water storage box, and communicates the setting with the inside intercommunication of water storage box communicating pipe.

Preferably, the outer wall of one end, close to the injection punch, of the feeding pipe is provided with a mounting groove in a penetrating mode, an auxiliary wheel is movably mounted inside the mounting groove, and the auxiliary wheel is matched with the traction rope.

Preferably, the bottom of piston board and the position fixed mounting that the haulage rope corresponds have the guide bar, and the bottom fixed mounting of guide bar has the stopper, and the stopper is the U-shaped setting.

Preferably, two positioning rods are symmetrically and fixedly mounted on the fixed die and close to one side wall surface of the movable die, and positioning grooves matched with the positioning rods are formed in the movable die and correspond to the positioning rods in a penetrating mode.

Preferably, a rubber pad is fixedly arranged on the outer wall of the piston plate.

Preferably, a plurality of radiating blocks are fixedly mounted on the outer wall of the water storage box.

Preferably, a spring is arranged between the suction box and the piston plate, and two ends of the spring are respectively and fixedly connected with the inner wall of the top of the suction box and the corresponding position on the piston plate.

Compared with the prior art, the invention has the following beneficial effects:

1. this kind of die casting die cavity structure that can exhaust fast, through the suction box that sets up in the outside of cover half, when the effect of injection drift at the piston plate when moving forward, the injection drift can be in the inside downstream of suction box of pulling the piston plate under the effect of haulage rope, at this moment, the piston plate can outwards be taken out the gas in the die cavity at the in-process of activity, and then can accelerate the outside discharge of air in the die cavity in the cover half, prevent to inject the drift and come too late the discharge when the die cavity is advanced in the extrusion of the metal raw materials in the charge-tube at a high speed, thereby cause the inside gas pocket that appears of the metal casting that casts.

2. This kind of die casting die cavity structure that can exhaust fast sets up the water storage box and sets up the heat dissipation chamber in the inside of movable mould through the bottom at the movable mould, then can make rivers in the water storage box flow at whole route mesocycle under the water pump effect that water storage box bottom set up, then rivers can accelerate thermal scattering and disappearing on the movable mould at the in-process that flows for the solidification rate of foundry goods in the die cavity, and then improved the casting efficiency of foundry goods.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the overall structure of the main body of the present invention;

FIG. 3 is a schematic diagram illustrating the distribution of the structure locations of the heat dissipation chamber according to the present invention;

FIG. 4 is a schematic sectional view of the construction of the suction box of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 1;

FIG. 6 is an enlarged view of a portion of FIG. 1 at B according to the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 2 at C in accordance with the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 2 according to the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 2 at E according to the present invention.

In the figure: 1. fixing a mold; 2. moving the mold; 3. a cavity; 4. injecting a punch; 5. a feed pipe; 6. mounting a rod; 7. an extrusion stem; 8. positioning a groove; 9. positioning a rod; 10. a suction box; 11. an exhaust pipe; 12. a piston plate; 13. a spring; 14. a hauling rope; 15. an air pumping cavity; 16. a water pump; 17. a water storage box; 18. a water conduit; 19. a heat dissipating block; 20. a heat dissipation cavity; 21. mounting grooves; 22. an auxiliary wheel; 23. a guide bar; 24. a limiting block; 25. a rubber pad; 26. a communicating pipe; 27. and (4) injecting a rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-9, a die-casting die cavity structure capable of exhausting air rapidly comprises a fixed die 1 and a movable die 2, wherein a feed pipe 5 is fixedly installed on the outer wall of one side of the fixed die 1, which is far away from the movable die 2, of the fixed die 1, an injection punch 4 is movably installed inside one end of the feed pipe 5, which is far away from the fixed die 1, the injection punch 4 is arranged in a matching manner with the movable die 2, an injection rod 27 is fixedly installed on the outer wall of the injection punch 4, an extrusion rod 7 is fixedly installed on one side wall surface of the movable die 2, which is far away from the fixed die 1, a cavity 3 is installed on one side wall surface of the fixed die 1, which is close to the movable die 2, an air suction cavity 15 is formed in the fixed die 1 in a penetrating manner, the air suction cavity 15 is communicated with the interior of the cavity 3, a suction box 10 is arranged outside the fixed die 1, a mounting rod 6 is arranged between the fixed die 1 and the suction box 10, two ends of the mounting rod 6 are fixedly connected with corresponding positions on the fixed die 1 and the suction box 10, an air suction pipe 11 is arranged between the fixed die 1 and the fixed die 10, two ends of the air suction pipe 11 are fixedly connected with corresponding positions on the fixed die 1 and the suction box 10, a traction plate 12, a fixed piston plate is connected with a central position of the traction plate 14, and a central portion of the traction plate 12 is connected with the traction plate 14.

When the die-casting die cavity structure capable of exhausting air rapidly is used, when a user opens a machine to cast a casting, the casting of the movable die 2 approaches the fixed die 1, so that a relatively closed space is formed in a cavity 3 between the movable die 2 and the fixed die 1, after a worker injects a metal raw material of the casting into the feeding pipe 5 through a feeding hole in the feeding pipe 5, the casting approaches the fixed die 1 under the action of the injection rod 27 of the injection punch 4, so that the raw material of the casting in the feeding pipe 5 enters the extrusion cavity, at the moment, in the process that the injection punch 4 continuously approaches the fixed die 1, under the traction action of a traction rope 14 arranged between the injection punch 4 and the piston plate 12, the injection punch 4 drives the piston plate 12 to move downwards continuously, so that the air in the cavity 3 is pumped into the suction box 10 along the air pumping cavity 15 and the air pumping pipe 11 in sequence when the piston plate 12 moves downwards, the air in the cavity 3 can be discharged outwards quickly, the quantity of the air holes in the cavity of the die is reduced, the quality of the casting of the injection punch 3 is improved, and the casting of the cavity 3 can be molded after the casting of the movable die 2 and the die cavity 3 is gradually taken out.

Further, as shown in fig. 1, fig. 2 and fig. 3, two heat dissipation cavities 20 are symmetrically formed in the movable mold 2 in a penetrating manner, a water storage box 17 is fixedly installed at the bottom of the movable mold 2, the heat dissipation cavities 20 are communicated with the inside of the water storage box 17, a water conduit 18 is fixedly installed on the upper surface of the movable mold 2, the water conduit 18 is of a U-shaped structure, two ends of the water conduit 18 are respectively and fixedly connected with positions corresponding to the heat dissipation cavities 20, a water pump 16 is fixedly installed at the bottom of the water storage box 17, communication pipes 26 are fixedly installed at two ends of the water pump 16, the other end of each communication pipe 26 is fixedly connected with a corresponding position on the water storage box 17, the communication pipes 26 are communicated with the inside of the water storage box 17, the water inside the communication pipes is filled with water inside the water storage box 17 installed on the movable mold 2, and under the connection of the water conduit 18, the heat dissipation cavities 20, the water storage box 17 and the communication pipes 26, the water pump 16 can generate a communicated passage with the water pump, under the suction effect of the water pump 16, the water inside communication pipes can circulate, heat dissipation on the movable mold 2, heat dissipation can accelerate the heat dissipation on the movable mold 2, the fixed mold 3, the casting, the heat dissipation speed of the casting can be increased, and the heat dissipation speed of the casting can be increased after the casting can be increased, and the heat dissipation speed of the movable mold 2, and the casting can be increased after the casting, and the casting die cavity can be increased.

Further, as shown in fig. 5, a mounting groove 21 is formed in the feed pipe 5 in a penetrating manner near one end of the injection punch 4, an auxiliary wheel 22 is movably mounted inside the mounting groove 21, the auxiliary wheel 22 is matched with the pulling rope 14, the number of the auxiliary wheels 22 is two, the two sets of auxiliary wheels 22 are respectively located at the tail end of the feed pipe 5 and at the lower end of the suction box 10, the pulling rope 14 can be in contact with the outer wall of the auxiliary wheel 22, when the pulling rope 14 is pulled by the injection punch 4, the auxiliary wheel 22 is arranged to reduce the friction between the pulling rope 14 and the contact positions of the feed pipe 5 and the suction box 10, so that the sliding friction between the pulling rope 14 and the corresponding positions of the feed pipe 5 and the suction box 10 is converted into rolling friction, and further the sliding of the pulling rope 14 is more flexible, and the abrasion of the outer wall of the pulling rope 14 is reduced, and the service life of the pulling rope is prolonged.

Further, as shown in fig. 9, the bottom of the piston plate 12 is fixedly provided with a guide rod 23 corresponding to the pulling rope 14, the bottom of the guide rod 23 is fixedly provided with a limiting block 24, the limiting block 24 is in a U-shaped configuration, the pulling rope 14 can keep a vertical state under the action of the guide rod 23, then the pulling rope 14 provides a vertical downward force after being pulled, so that the piston plate 12 moves downward, the bottom fixedly provided limiting block 24 of the pulling rope 14 is in a U-shaped configuration, the air suction cavity 15 can play a limiting role on the pulling rope 14, the pulling rope 14 is prevented from contacting with the surface of the guide rod 23 under the stress, so that the upper end of the pulling rope 14 is inclined, the bottom of the piston plate 12 is stressed unevenly, and the downward sliding of the piston plate 12 is affected.

Further, as shown in fig. 2 and 8, two positioning rods 9 are symmetrically and fixedly mounted on one side wall surface of the fixed die 1 close to the movable die 2, positioning grooves 8 matched with the positioning rods 9 are formed in the movable die 2 in a penetrating mode at positions corresponding to the positioning rods 9, and the fixed die 1 and the movable die 2 can be accurately positioned under the action of the positioning grooves 8 and the positioning rods 9, so that the deviation of casting precision of casting between the fixed die 1 and the movable die 2 at each time is reduced.

Further, as shown in fig. 4, a rubber pad 25 is fixedly installed on the outer wall of the piston plate 12, and the rubber pad 25 is disposed to make the sealing between the piston plate 12 and the inner wall of the suction box 10 more tight, so that the piston plate 12 has a better suction effect on the air in the cavity 3 when moving downward.

Further, as shown in fig. 6, the outer wall of the water storage box 17 is fixedly provided with a plurality of radiating blocks 19, the plurality of radiating blocks 19 fixedly arranged on the outer wall of the water storage box 17 protrude outwards, so that the contact area between the water storage box 17 and the external environment is increased, the radiating efficiency of the water flow heat in the water storage box 17 is accelerated, the radiating efficiency of the heat on the whole movable die 2 is improved, and the radiating efficiency of the cavity 3 between the fixed die 1 and the movable die 2 is accelerated.

Further, as shown in fig. 4, a spring 13 is arranged between the suction box 10 and the piston plate 12, two ends of the spring 13 are respectively fixedly connected with the top inner wall of the suction box 10 and the corresponding positions on the piston plate 12, after casting is completed, the injection punch 4 is restored to the initial position under the action of the piston plate 12, the piston plate 12 of the suction box 10 is also restored to the initial position under the action of the spring 13, and further, the die is convenient for pumping out the air in the cavity 3 again when casting is performed next time, and repeated use can be realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a die casting die cavity structure that can exhaust fast, including cover half (1) and movable mould (2), keep away from one side outer wall fixed mounting of movable mould (2) on cover half (1) and have inlet pipe (5), the inside movable mounting of one end of keeping away from cover half (1) on inlet pipe (5) has injection drift (4), injection drift (4) and movable mould (2) match the setting, and the outer wall fixed mounting who just injects drift (4) has injection pole (27), one side wall fixed mounting who keeps away from cover half (1) on movable mould (2) has extrusion pole (7), cavity (3) have been seted up to one side wall that is close to movable mould (2) on cover half (1), its characterized in that: the utility model discloses a plunger pump, including the cover half, the inside of cover half (1) is run through and is seted up exhaust chamber (15), and the inside intercommunication setting of exhaust chamber (15) and die cavity (3), the outside of cover half (1) is provided with suction box (10), be provided with between cover half (1) and suction box (10) installation pole (6), the both ends of installation pole (6) correspond position fixed connection on with cover half (1) and suction box (10) respectively, and be provided with exhaust tube (11) between cover half (1) and suction box (10), the both ends of exhaust tube (11) correspond position fixed connection on with cover half (1) and suction box (10) respectively, and exhaust tube (11) and the inside intercommunication setting of exhaust chamber (15) and suction box (10), the inside movable mounting of suction box (10) has piston plate (12), the bottom central point of piston plate (12) puts fixed connection and has haulage rope (14), another end and injection drift (4) fixed connection of haulage rope (14).

2. The die-casting die cavity structure capable of exhausting rapidly according to claim 1, wherein: two heat dissipation chamber (20) have been seted up to the inside symmetry of movable mould (2) through, the bottom fixed mounting of movable mould (2) has water storage box (17), heat dissipation chamber (20) sets up with the inside intercommunication of water storage box (17), the last fixed surface of movable mould (2) installs aqueduct (18), aqueduct (18) are the position fixed connection that the both ends of U-shaped structure and aqueduct (18) correspond with heat dissipation chamber (20) respectively, the bottom fixed mounting of water storage box (17) has water pump (16), the equal fixed mounting in both ends of water pump (16) has communicating pipe (26), correspond position fixed connection on another end of communicating pipe (26) and water storage box (17), and communicating pipe (26) and the inside intercommunication setting of water storage box (17).

3. The die-casting die cavity structure capable of exhausting rapidly according to claim 1, wherein: the outer wall of one end, close to the injection punch head (4), of the feeding pipe (5) penetrates through to be provided with an installation groove (21), an auxiliary wheel (22) is movably installed inside the installation groove (21), and the auxiliary wheel (22) is matched with the traction rope (14).

4. The die-casting die cavity structure capable of exhausting rapidly according to claim 1, wherein: the bottom of the piston plate (12) is fixedly provided with a guide rod (23) at a position corresponding to the traction rope (14), the bottom of the guide rod (23) is fixedly provided with a limiting block (24), and the limiting block (24) is arranged in a U shape.

5. The die-casting die cavity structure capable of exhausting rapidly according to claim 1, wherein: a side wall face of the fixed die (1) close to the movable die (2) is symmetrically and fixedly provided with two positioning rods (9), and a positioning groove (8) matched with the positioning rods (9) is formed in the position, corresponding to the positioning rods (9), of the movable die (2) in a penetrating mode.

6. The die-casting die cavity structure capable of rapidly exhausting gas as claimed in claim 4, wherein: and a rubber pad (25) is fixedly arranged on the outer wall of the piston plate (12).

7. The die-casting die cavity structure capable of rapidly exhausting gas as claimed in claim 2, wherein: the outer wall fixed mounting of water storage box (17) has a plurality of radiating block (19).

8. The die-casting die cavity structure capable of rapidly exhausting gas as claimed in claim 1, wherein: a spring (13) is arranged between the suction box (10) and the piston plate (12), and two ends of the spring (13) are respectively fixedly connected with the top inner wall of the suction box (10) and the corresponding position on the piston plate (12).