CN215879834U

CN215879834U - Vacuum guarantee mechanism for mold

Info

Publication number: CN215879834U
Application number: CN202120951387.4U
Authority: CN
Inventors: 周志壮
Original assignee: Ryobi Die Casting Dalian Inc
Current assignee: Ryobi Die Casting Dalian Inc
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-02-22
Anticipated expiration: 2031-05-07

Abstract

The utility model relates to the technical field of molds, in particular to a vacuum guarantee mechanism for a mold, which comprises a neutron mold core, wherein the neutron mold core is inserted into the top end of the movable mold core, a movable mold base is arranged at the bottom end of the movable mold core, a first sealing mechanism is arranged inside the movable mold base, and a second sealing mechanism is arranged inside the movable mold core. This device mutually supports mutually with first sealing washer and first ejector pin through first sealing washer and sealing device, thereby effective keep out most air in movable die carrier's the outside, can improve this device's leakproofness, and then the improvement the mobility of aluminium liquid, through setting up second sealing mechanism, can closely laminate the second sealing washer of closing plate bottom with the inner wall of seal chamber bottom under the effect of spring self resilience force, further prevent the inside of air admission core, the inside vacuum state of core and the mobility of aluminium liquid have been guaranteed.

Description

Vacuum guarantee mechanism for mold

Technical Field

The utility model relates to the technical field of molds, in particular to a vacuum guarantee mechanism for a mold.

Background

The mould is a tool for manufacturing a molded article, the appearance of the article is processed mainly by changing the physical state of a molded material, and after the mould is closed, a user extracts internal air, so that the fluidity of aluminum liquid in the mould is improved, and the occurrence of the conditions such as sand holes and the like is prevented, so that the interior of a cast product is more compact;

on the market at present, the sealing performance of the existing partial mold is poor, so that when a user takes out the air in the mold, the air easily enters the mold core from the position of the ejection hole, the air pressure in the mold core is increased, and the flowability of the aluminum liquid is reduced.

Disclosure of Invention

The utility model aims to provide a vacuum guarantee mechanism for a mold, and the vacuum guarantee mechanism is used for solving the problems that the sealing performance of the existing partial mold in the prior art in the market is poor, so that when a user extracts air in the mold, the air is easy to enter a mold core from the position of an ejection hole, the air pressure in the mold core is increased, and the liquidity of aluminum liquid is reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a vacuum guarantee mechanism for mould, includes the neutron mold core, the top of movable mold core is inserted and is equipped with the neutron mold core, the bottom of movable mold core is provided with movable die carrier, the bottom of movable die carrier is provided with preceding ejector pin board, the bottom of preceding ejector pin board is provided with back ejector pin board, be provided with the goods between neutron mold core and the movable mold core, first ejector pin hole has all been seted up to the one end of preceding ejector pin board, movable die carrier and movable mold core, the bottom in first ejector pin hole is inserted and is equipped with first knockout pin, the inside of movable die carrier is provided with first sealing mechanism, the inside of movable mold core is provided with second sealing mechanism.

Preferably, the top end of the first ejector rod passes through the front ejector rod plate and extends to the inside of the movable mold core, the inner diameter of the first ejector rod hole is matched with the outer diameter of the first ejector rod, and when the first ejector rod moves in the first ejector rod hole, the first ejector rod is prevented from shaking in the first ejector rod hole.

Preferably, first sealing mechanism includes sealing device and first sealing washer, sealing device has been seted up to movable die carrier's bottom, and sealing device and first ejector pin hole are linked together, sealing device's inside is provided with first sealing washer, and first sealing washer cover is established on the surface of first ejector pin, can improve the leakproofness between first ejector pin hole and the first ejector pin.

Preferably, the inner diameter of the sealing device is matched with the outer diameter of the first sealing ring, and the inner diameter of the first sealing ring is matched with the outer diameter of the first ejection rod, so that the sealing performance between the sealing device and the first sealing ring and between the first sealing ring and the first ejection rod is improved.

Preferably, the second sealing mechanism comprises a second ejector rod hole, a sealing bin, a sealing plate, a second ejector rod, a spring and a second sealing ring, the second ejector rod hole is formed in the top end of the movable mold core, the sealing bin is formed in the bottom end of the second ejector rod hole, the sealing plate is arranged inside the sealing bin, the second ejector rod is fixedly connected to the top end of the sealing plate, the spring is arranged inside the sealing bin, the spring is located at the top end of the sealing plate, the second sealing ring is fixedly connected to the bottom end of the sealing plate, and air is further prevented from entering the inside of the mold core.

Preferably, the outer diameter of the sealing plate is matched with the inner diameter of the sealing bin, the inner diameter of the second ejector rod hole is matched with the outer diameter of the second ejector rod, and the stability of the sealing plate moving in the sealing bin and the second ejector rod moving in the second ejector rod hole is improved.

Preferably, the top end of the sealing plate is fixedly connected with the bottom end of the spring, the top end of the spring is fixedly connected with the inner wall of the top end of the sealing bin, the inner diameter of the spring is matched with the outer diameter of the second ejection rod, and the stability of the spring when the spring is compressed is guaranteed.

Preferably, the bottom end of the second sealing ring is attached to the inner wall of the bottom end of the sealing bin, the outer diameter of the second sealing ring is smaller than that of the sealing plate, the inner diameter of the second sealing ring is larger than that of the first ejector rod hole, and the sealing performance of the bottom end of the sealing plate and the inner wall of the bottom end of the sealing bin is improved.

Compared with the prior art, the utility model has the beneficial effects that:

through being provided with first sealing mechanism, this device inserts sealing device's inside with first sealing washer, pass first sealing washer again with first knockout rod, mutually support mutually with first sealing washer and first knockout rod through first sealing washer and sealing device, thereby effective outside of keeping off at movable die carrier with most air, can improve the leakproofness between first knockout rod hole and the first knockout rod, and then the mobility of aluminium liquid has been improved, through setting up second sealing mechanism, can closely laminate the second sealing washer of closing plate bottom with the inner wall of seal chamber bottom under the effect of spring self resilience force, further prevent the inside of air admission core, make the inside atmospheric pressure of core not in the increase, the mobility of the inside vacuum state of core and aluminium liquid has been guaranteed.

Drawings

FIG. 1 is a schematic perspective cross-sectional view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a partial perspective view of a second sealing mechanism according to the present invention;

FIG. 4 is a partial perspective view of a first sealing mechanism of the present invention;

fig. 5 is a perspective view of the present invention.

In the figure: 1. a neutron mold core; 2. a movable mould frame; 3. a front ejector plate; 4. a rear ejector plate; 5. an article of manufacture; 6. a movable mold core; 7. a sealing device; 8. a first ejector rod; 9. a first seal ring; 10. a first ejector pin hole; 11. a second ejector pin hole; 12. sealing the bin; 13. a sealing plate; 14. a second ejector rod; 15. a spring; 16. and a second seal ring.

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.

Referring to fig. 1-5, an embodiment of the present invention is shown:

a vacuum guarantee mechanism for a mold comprises a neutron mold core 1, wherein the neutron mold core 1 is inserted into the top end of a movable mold core 6, a movable mold base 2 is arranged at the bottom end of the movable mold base 6, a front ejector rod plate 3 is arranged at the bottom end of the movable mold base 2, a rear ejector rod plate 4 is arranged at the bottom end of the front ejector rod plate 3, a product 5 is arranged between the neutron mold core 1 and the movable mold core 6, a first ejector rod hole 10 is formed in one end of each of the front ejector rod plate 3, the movable mold base 2 and the movable mold core 6, a first ejector rod 8 is inserted into the bottom end of the first ejector rod hole 10, a first sealing mechanism is arranged inside the movable mold base 2, a second sealing mechanism is arranged inside the movable mold core 6, when a user wants to demold, the product 5 inside the mold core 6 can be ejected out through the front ejector rod plate 3, the rear ejector rod plate 4, the first ejector rod 8 and the second ejector rod hole 11, so that the demolding of the product 5 is convenient, and the top end of the first ejector rod 8 passes through the front ejector rod plate 3 and extends to the inside the movable mold core 6, the inner diameter of the first ejector rod hole 10 is matched with the outer diameter of the first ejector rod 8, when a user demolds the mold, the first ejector rod 8 moves in the first ejector rod hole 10, the first ejector rod 8 is matched with the first ejector rod hole 10, the first ejector rod 8 can be prevented from shaking in the first ejector rod hole 10, the stability and the sealing performance of the first ejector rod 8 are improved, the first sealing mechanism comprises a sealing device 7 and a first sealing ring 9, the sealing device 7 is arranged at the bottom end of the movable mold base 2, the sealing device 7 is communicated with the first ejector rod hole 10, the first sealing ring 9 is arranged in the sealing device 7, the first sealing ring 9 is sleeved on the surface of the first ejector rod 8, after the user plugs the first sealing ring 9 into the sealing device 7, the user penetrates the first sealing ring 9 through the first ejector rod 8, and the sealing performance between the first ejector rod hole 10 and the first ejector rod 8 can be improved through the sealing device 7 and the first sealing ring 9, air is prevented from entering the interior of the mold core, the flowability of aluminum liquid is prevented from being influenced, the inner diameter of the sealing device 7 is matched with the outer diameter of the first sealing ring 9, the inner diameter of the first sealing ring 9 is matched with the outer diameter of the first ejection rod 8, a user inserts the first sealing ring 9 into the interior of the sealing device 7 and then penetrates the first ejection rod 8 through the first sealing ring 9, and the sealing performance between the sealing device 7 and the first sealing ring 9 and between the first sealing ring 9 and the first ejection rod 8 is improved as the inner diameter and the outer diameter of the first sealing ring 9 are matched with the first ejection rod 8 and the sealing device 7;

the second sealing mechanism comprises a second ejector rod hole 11, a sealing bin 12, a sealing plate 13, a second ejector rod 14, a spring 15 and a second sealing ring 16, the second ejector rod hole 11 is formed in the top end of the movable mold core 6, the sealing bin 12 is formed in the bottom end of the second ejector rod hole 11, the sealing plate 13 is arranged inside the sealing bin 12, the second ejector rod 14 is fixedly connected to the top end of the sealing plate 13, the spring 15 is arranged inside the sealing bin 12, the spring 15 is located at the top end of the sealing plate 13, the second sealing ring 16 is fixedly connected to the bottom end of the sealing plate 13, the bottom end of the sealing plate 13 can be attached to the inner wall of the bottom end of the sealing bin 12 through the self resilience force of the spring 15, air can be further prevented from entering the inside of the mold core, the vacuum state inside the mold core is guaranteed, the outer diameter of the sealing plate 13 is matched with the inner diameter of the sealing bin 12, the inner diameter of the second ejector rod hole 11 is matched with the outer diameter of the second ejector rod 14, when the first ejector rod 8 drives the sealing plate 13 to move in the sealing bin 12, the sealing plate 13 drives the second ejector rod 14 to move in the second ejector rod hole 11, the inner diameter and the outer diameter of the matching can improve the stability when the sealing plate 13 and the second ejector rod 14 move, the top end of the sealing plate 13 is fixedly connected with the bottom end of the spring 15, the top end of the spring 15 is fixedly connected with the inner wall of the top end of the sealing bin 12, the inner diameter of the spring 15 is matched with the outer diameter of the second ejector rod 14, when the sealing plate 13 moves upwards, the sealing plate 13 compresses the spring 15, as the spring 15 is fixed in the sealing bin 12, the stability when the spring 15 is compressed can be ensured, the bottom end of the second sealing ring 16 is attached to the inner wall of the bottom end of the sealing bin 12, the outer diameter of the second sealing ring 16 is smaller than that of the sealing plate 13, and the inner diameter of the second sealing ring 16 is larger than that of the first ejector rod hole 10, when the bottom end of the sealing plate 13 is attached to the inner wall of the bottom end of the sealed bin 12, the second sealing ring 16 at the bottom end of the sealing plate 13 can improve the sealing performance between the sealing plate 13 and the inner wall of the bottom end of the sealed bin 12, and air can enter the sealed bin.

The working principle is as follows: after a user closes the mold, the bottom end of the sealing plate 13 is tightly attached to the inner wall of the bottom end of the sealing bin 12 under the action of the self resilience force of the spring 15, the second sealing ring 16 at the bottom end of the sealing plate 13 can further improve the sealing performance between the sealing bin 12 and the sealing plate 13, meanwhile, the first ejector rod 8 is tightly attached to the first sealing ring 9, the first sealing ring 9 is tightly attached to the inner wall of the sealing device 7, air is prevented from entering the inside of the cavity through a gap between the first ejector rod hole 10 and the first ejector rod 8, after the user extracts the air in the cavity, the outside air cannot enter the inside of the cavity through the mold gap, so that the vacuum state in the cavity is ensured, the aluminum liquid flows faster, the working efficiency is improved, when the user needs to demold, after the user extracts the neutron mold core 1, the rear ejector rod plate 4 is pushed, the rear ejector rod plate 4 drives the front ejector rod plate 3 and the first ejector rod 8 to move upwards, the bottom of the first knock-out lever 8 and the closing plate 13 of removal is contradicted for closing plate 13 drives second knock-out lever 14 and upwards removes, after second knock-out lever 14 supports with goods 5, can make movable die carrier 2 rebound, the drawing of patterns is accomplished to goods 5 this moment, closing plate 13 of this while rebound can compress spring 15, end when the user drawing of patterns, back ejector rob board 4 resets the back, closing plate 13 and second knock-out lever 14 resume the original state under the effect of spring 15 self resilience power, accomplish resealing this moment.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A vacuum guarantee mechanism for mould, includes neutron mold core (1), its characterized in that: the utility model discloses a neutron injection molding device, including movable mold core (6), ejector plate (3) before the bottom of movable mold core (2), ejector plate (10) have all been seted up to the one end of preceding ejector plate (3), first ejector rod hole (10) have been inserted to the bottom of first ejector rod hole (10), the inside of movable mold core (2) is provided with first sealing mechanism, the inside of movable mold core (6) is provided with second sealing mechanism.

2. A vacuum ensuring mechanism for a mold according to claim 1, wherein: the top end of the first ejector rod (8) penetrates through the front ejector rod plate (3) to extend to the interior of the movable mold core (6), and the inner diameter of the first ejector rod hole (10) is matched with the outer diameter of the first ejector rod (8).

3. A vacuum ensuring mechanism for a mold according to claim 1, wherein: first sealing mechanism includes sealing device (7) and first sealing washer (9), sealing device (7) have been seted up to the bottom of movable die carrier (2), and sealing device (7) are linked together with first ejector pin hole (10), the inside of sealing device (7) is provided with first sealing washer (9), and first sealing washer (9) cover is established on the surface of first ejector pin (8).

4. A vacuum ensuring mechanism for a mold according to claim 3, wherein: the inner diameter of the sealing device (7) is matched with the outer diameter of the first sealing ring (9), and the inner diameter of the first sealing ring (9) is matched with the outer diameter of the first ejection rod (8).

5. A vacuum ensuring mechanism for a mold according to claim 1, wherein: the second sealing mechanism comprises a second ejector rod hole (11), a sealing bin (12), a sealing plate (13), a second ejector rod (14), a spring (15) and a second sealing ring (16), the second ejector rod hole (11) is formed in the top end of the movable mold core (6), the sealing bin (12) is formed in the bottom end of the second ejector rod hole (11), the sealing plate (13) is arranged inside the sealing bin (12), the second ejector rod (14) is fixedly connected to the top end of the sealing plate (13), the spring (15) is arranged inside the sealing bin (12), the spring (15) is located on the top end of the sealing plate (13), and the second sealing ring (16) is fixedly connected to the bottom end of the sealing plate (13).

6. A vacuum ensuring mechanism for a mold as set forth in claim 5, wherein: the outer diameter of the sealing plate (13) is matched with the inner diameter of the sealing bin (12), and the inner diameter of the second ejector rod hole (11) is matched with the outer diameter of the second ejector rod (14).

7. A vacuum ensuring mechanism for a mold as set forth in claim 5, wherein: the top end of the sealing plate (13) is fixedly connected with the bottom end of the spring (15), the top end of the spring (15) is fixedly connected with the inner wall of the top end of the sealing bin (12), and the inner diameter of the spring (15) is matched with the outer diameter of the second ejection rod (14).

8. A vacuum ensuring mechanism for a mold as set forth in claim 5, wherein: the bottom end of the second sealing ring (16) is attached to the inner wall of the bottom end of the sealing bin (12), the outer diameter of the second sealing ring (16) is smaller than the outer diameter of the sealing plate (13), and the inner diameter of the second sealing ring (16) is larger than the inner diameter of the first ejector rod hole (10).