CN210475498U

CN210475498U - Double-layer vent plug for differential pressure die

Info

Publication number: CN210475498U
Application number: CN201921628422.8U
Authority: CN
Inventors: 付大伟
Original assignee: Qinhuangdao Dicastal Xionglong Wheels Co Ltd
Current assignee: Qinhuangdao Dicastal Xionglong Wheels Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-08
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a differential pressure mould is with double-deck core vent, including core vent clamp plate and exhaust sleeve, the core vent clamp plate is located exhaust sleeve one side and is provided with the notch cuttype recess, exhaust sleeve is located core vent clamp plate one end and is provided with cross recess, the exhaust sleeve's that exhaust sleeve kept away from core vent clamp plate one end outside is provided with the sleeve pipe air discharge duct, the one end that the exhaust sleeve is close to the sleeve pipe air discharge duct is provided with the empty exhaust passage of sleeve pipe wall, the outside that the exhaust sleeve is located core vent clamp plate one end is provided with the circumference air discharge duct, be provided with the core vent in the air discharge duct, be provided with the inner core air discharge duct on the core vent, the one end that the core vent is close to the inner core air discharge duct is provided. The utility model discloses, adopt double-deck core vent to get the purpose mainly be the exhaust effect that increases the mould, increase exhaust passage under the prerequisite that does not change the air discharge duct size, prevent that the air discharge duct from gluing the aluminium problem after increasing.

Description

Double-layer vent plug for differential pressure die

Technical Field

The utility model relates to a core vent technical field specifically is a double-deck core vent is used to differential pressure mould.

Background

In the counter-pressure casting process, the requirement on the exhaust effect of the mold is very high, and if the mold is poorly exhausted, gas in the cavity and gas in the aluminum liquid are left inside the casting, so that a large amount of air hole waste products are generated, and the casting yield is seriously influenced. Traditional line cutting mode core vent, the form is comparatively simple, but the exhaust effect is relatively poor, needs frequent clearance. If the size of the micro exhaust groove at the edge of the mold vent plug is increased, aluminum is easy to stick in the exhaust groove to block the exhaust groove from the aspect of use effect, and the appearance of the surface of a casting is influenced. The manufacturing process of the pinhole type air vent plug is complex, the cost is high, and the air vent plug is difficult to clean once being blocked. The exhaust plug has the problems of easy blockage and poor exhaust in low-pressure casting, the casting pressure is higher in differential pressure casting, aluminum liquid or coating easily invades into an exhaust groove, and the exhaust plug of the mold is completely blocked with the increase of the on-machine time of the mold. The mould exhaust effect is bad, influences the yield gas pocket waste product and increases, and the mould has to be gone off the machine in advance, needs frequently to clear up the mould core vent after the machine is gone off, increases the cost of labor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-deck core vent is used to differential pressure mould to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a differential pressure is double-deck core vent for mould, includes core vent clamp plate and exhaust casing, the core vent clamp plate is located exhaust casing one side and is provided with the notch cuttype recess, exhaust casing is located core vent clamp plate one end and is provided with cross recess, the exhaust casing's that exhaust casing kept away from core vent clamp plate one end outside is provided with the sleeve pipe air discharge duct, the one end that the exhaust casing is close to the sleeve pipe air discharge duct is provided with the empty exhaust passage of sleeve wall, the outside that the exhaust casing is located core vent clamp plate one end is provided with the circumference air discharge duct, be provided with the core vent inner core in the core vent, be provided with the inner core air discharge duct on the core vent, the one end that the core vent inner core is close to the.

Preferably, the diameter of the exhaust sleeve at the exhaust groove of the sleeve is larger than that of the exhaust sleeve at the empty exhaust channel of the sleeve wall.

Preferably, the diameter of the vent plug inner core at the vent groove of the inner core is larger than that of the vent plug inner core at the vent channel of the inner core wall.

Preferably, the sleeve pipe air discharge groove is provided with four or six, and is a plurality of sleeve pipe air discharge groove evenly distributed is on exhaust sleeve's outer wall, the width of sleeve pipe air discharge groove sets up to 1.5mm, the degree of depth of sleeve pipe air discharge groove sets up to 0.4 mm.

Preferably, the inner core air vent groove is provided with four or six, and is a plurality of inner core air vent groove evenly distributed is on the outer wall of core air vent, the width of inner core air vent groove sets up to 1.4mm, the degree of depth of inner core air vent groove sets up to 0.4 mm.

Preferably, the number of the circumferential exhaust grooves is four, and the depth of the cross-shaped groove is set to be 0.5 mm.

Preferably, the maximum outer diameter of the vent plug inner core is the same as the inner diameter of the vent sleeve, and the vent plug inner core and the vent sleeve are in clearance fit.

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

1. the double-layer vent plug is adopted to mainly increase the venting effect of the die, increase the venting channel on the premise of not changing the size of the venting groove, prevent the problem of aluminum adhesion after the venting groove is enlarged and block the venting channel more easily; when part of the exhaust plugs are blocked, enough exhaust channels still exist to ensure the exhaust of the gas in the die, and the waste gas holes of the die in the machine are reduced; the number of the moulds in the machine and the number of cleaning the exhaust plugs are increased; the mold is lifted to 8-12 shifts in the shift, and simultaneously the cleaning frequency of the exhaust plug is lifted to the upper machine twice from the cleaning of the lower machine of the mold and then cleaned;

2. the exhaust plug has simple structure, low cost and easy disassembly and cleaning;

3. when the air release plug is cleaned, the sticky aluminum of the air release groove on the inner core of the air release plug can be cleaned independently, the loss of the mold body caused by repeated disassembly of the air release plug is reduced, and the problem of burr generation between the air release plug and the mold is caused.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

In the figure: 1. a vent plug pressure plate; 2. an exhaust sleeve; 3. an inner core of the vent plug; 4. a step-shaped groove; 5. a cross-shaped groove; 6. the casing wall is provided with an exhaust channel; 7. the inner core wall is provided with an air exhaust channel; 8. a sleeve exhaust slot; 9. an inner core exhaust groove; 10. a circumferential vent groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, in an embodiment of the present invention, a double-layered vent plug for a differential pressure die, including a vent plug pressing plate 1 and a vent sleeve 2, the vent plug pressing plate 1 is located on one side of the vent sleeve 2 and is provided with a step-shaped groove 4, the vent sleeve 2 is located on one end of the vent plug pressing plate 1 and is provided with a cross-shaped groove 5, the outer side of the vent sleeve 2, which is far away from one end of the vent plug pressing plate 1, of the vent sleeve 2 is provided with a sleeve vent groove 8, one end of the vent sleeve 2, which is close to the sleeve vent groove 8, is provided with a sleeve wall air exhaust channel 6, the outer side of the vent sleeve 2, which is located on one end of the vent plug pressing plate 1, is provided with a circumference vent groove 10, the vent plug inner core 3 is arranged in the vent sleeve 2, the inner core air exhaust groove 9 is arranged on the vent plug inner core 3, one end of the vent core inner The diameter of the vent plug inner core 3 at the inner core vent groove 9 is larger than that of the vent plug inner core 3 at the inner core wall air vent channel 7, four or six sleeve vent grooves 8 are arranged, a plurality of sleeve vent grooves 8 are uniformly distributed on the outer wall of the vent plug inner core 3, the width of each sleeve vent groove 8 is set to be 1.5mm, the depth of each sleeve vent groove 8 is set to be 0.4mm, four or six inner core vent grooves 9 are arranged, a plurality of inner core vent grooves 9 are uniformly distributed on the outer wall of the vent plug inner core 3, the width of each inner core vent groove 9 is set to be 1.4mm, the depth of each inner core vent groove 9 is set to be 0.4mm, four circumferential vent grooves 10 are arranged, the depth of the cross-shaped groove 5 is set to be 0.5mm, the maximum outer diameter of the vent plug inner core 3 is the same as the inner diameter of the vent sleeve 2, and the vent plug inner core 3 is; the double-layer vent plug main body consists of a vent plug pressure plate 1, a vent sleeve 2 and a vent plug inner core 3; the exhaust grooves 9 on the exhaust plug inner core 3 can be increased or decreased according to the exhaust effect; and an inner core wall air exhaust channel 7; the exhaust sleeve 2 is provided with an exhaust groove 8, a sleeve wall empty exhaust channel 6, a cross-shaped groove 5 with the top depth of 0.5mm and a circumferential exhaust groove 10; the exhaust plug pressure plate 1 is provided with stepped grooves 4 with the depth of 1mm respectively; the maximum outer diameter of the vent plug inner core 3 is the same as the inner diameter of the vent sleeve 2, the maximum outer diameter and the inner diameter of the vent sleeve 2 are in clearance fit, and a vent plug pressing plate is pressed on the vent plug inner core 3 and the vent sleeve 2 during assembly to ensure the position of the vent plug; the gas in the mold cavity can be exhausted out of the mold through the inner core exhaust groove 9 and the inner core wall air exhaust channel 7 cross-shaped groove 5; the gas can also be exhausted out of the die through the sleeve exhaust groove 8, the sleeve wall empty exhaust channel 6 and the circumferential exhaust groove 10, so that the smooth exhaust inside the die cavity is ensured.

The utility model discloses a theory of operation is: the double-layer vent plug main body consists of a vent plug pressure plate 1, a vent sleeve 2 and a vent plug inner core 3; the exhaust grooves 9 on the exhaust plug inner core 3 can be increased or decreased according to the exhaust effect; and an inner core wall air exhaust channel 7; the exhaust sleeve 2 is provided with an exhaust groove 8, a sleeve wall empty exhaust channel 6, a cross-shaped groove 5 with the top depth of 0.5mm and a circumferential exhaust groove 10; the exhaust plug pressure plate 1 is provided with stepped grooves 4 with the depth of 1mm respectively; the maximum outer diameter of the vent plug inner core 3 is the same as the inner diameter of the vent sleeve 2, the maximum outer diameter and the inner diameter of the vent sleeve 2 are in clearance fit, and a vent plug pressing plate is pressed on the vent plug inner core 3 and the vent sleeve 2 during assembly to ensure the position of the vent plug; the gas in the mold cavity can be exhausted out of the mold through the inner core exhaust groove 9 and the inner core wall air exhaust channel 7 cross-shaped groove 5; the gas can also be exhausted out of the die through the sleeve exhaust groove 8, the sleeve wall empty exhaust channel 6 and the circumferential exhaust groove 10, so that the smooth exhaust inside the die cavity is ensured.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a double-deck core vent is used to differential pressure mould, includes core vent clamp plate (1) and exhaust sleeve (2), its characterized in that: a step-shaped groove (4) is arranged on one side of the exhaust sleeve (2) of the exhaust plug pressure plate (1), one end of the exhaust sleeve (2) positioned on the exhaust plug pressure plate (1) is provided with a cross-shaped groove (5), a sleeve exhaust groove (8) is arranged on the outer side of the exhaust sleeve (2) at one end of the exhaust sleeve (2) far away from the exhaust plug pressure plate (1), one end of the exhaust sleeve (2) close to the sleeve exhaust groove (8) is provided with a sleeve wall air exhaust channel (6), a circumferential exhaust groove (10) is arranged on the outer side of one end of the exhaust sleeve (2) positioned on the exhaust plug pressure plate (1), an inner core (3) of the vent plug is arranged in the vent sleeve (2), an inner core vent groove (9) is arranged on the inner core (3) of the vent plug, an inner core wall air exhaust channel (7) is arranged at one end, close to the inner core exhaust groove (9), of the exhaust plug inner core (3).

2. The double-layered vent plug for a differential pressure die according to claim 1, wherein: the diameter of the exhaust sleeve (2) at the sleeve exhaust groove (8) is larger than that of the exhaust sleeve (2) at the sleeve wall empty exhaust channel (6).

3. The double-layered vent plug for a differential pressure die according to claim 1, wherein: the diameter of the vent plug inner core (3) at the inner core vent groove (9) is larger than that of the vent plug inner core (3) at the inner core wall vent channel (7).

4. The double-layered vent plug for a differential pressure die according to claim 1, wherein: sleeve pipe air discharge duct (8) are provided with four or six, and are a plurality of sleeve pipe air discharge duct (8) evenly distributed is on the outer wall of exhaust sleeve pipe (2), the width of sleeve pipe air discharge duct (8) sets up to 1.5mm, the degree of depth of sleeve pipe air discharge duct (8) sets up to 0.4 mm.

5. The double-layered vent plug for a differential pressure die according to claim 1, wherein: inner core air discharge duct (9) are provided with four or six, and are a plurality of inner core air discharge duct (9) evenly distributed is on the outer wall of core (3) of core vent, the width of inner core air discharge duct (9) sets up to 1.4mm, the degree of depth of inner core air discharge duct (9) sets up to 0.4 mm.

6. The double-layered vent plug for a differential pressure die according to claim 1, wherein: the number of the circumferential exhaust grooves (10) is four, and the depth of the cross-shaped groove (5) is set to be 0.5 mm.

7. The double-layered vent plug for a differential pressure die according to claim 1, wherein: the maximum outer diameter of the vent plug inner core (3) is the same as the inner diameter of the vent sleeve (2), and the vent plug inner core (3) is in clearance fit with the vent sleeve (2).