CN219233920U

CN219233920U - Automobile-used natural gas relief pressure valve die casting die

Info

Publication number: CN219233920U
Application number: CN202320017521.2U
Authority: CN
Inventors: 慕云
Original assignee: Shanghai E Xon Power System Co ltd
Current assignee: Shanghai E Xon Power System Co ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-06-23
Anticipated expiration: 2033-01-05

Abstract

The utility model discloses a die casting die for a natural gas reducing valve for a vehicle, which comprises a bottom plate, a lower die table, an upper die base, a cylinder and a molded casting ejection structure, wherein the bottom plate can be fixed on a frame, the lower die table is arranged on the bottom plate, and a back plate is vertically fixed on the rear side of the bottom plate; the inner side of the lower die table is provided with a cavity, and the lower die table is provided with two die grooves; the two groups of cylinders are fixed on the back plate through angle irons, the shaft ends of the two groups of cylinders are connected with upper die holders, the upper die holders are matched with the die grooves to form a die casting die cavity, and the upper die holders can be close to and far away from the die grooves of the lower die table; the cavity is internally provided with a molded casting ejection structure which extends into the bottom side of the die cavity and can eject the molded valve casing in the die cavity. The utility model can avoid damage to the product caused by directly ejecting the ejector rod when separating the product from the die cavity by uniformly stressing the stripper plate, and further improves the qualification rate of the product taken out by the way.

Description

Automobile-used natural gas relief pressure valve die casting die

Technical Field

The utility model relates to the field of manufacturing of natural gas pressure reducing valves, in particular to a die casting die of a natural gas pressure reducing valve for a vehicle.

Background

In recent years, the compressed natural gas is used as a gas fuel, is combusted fully, has low emission of harmful substances, meets the environmental protection requirement, and is an ideal new energy automobile fuel. Natural gas is typically stored in storage tanks as liquid LNG or gaseous CNG. When the natural gas is stored in a CNG gas cylinder, the pressure in the cylinder is generally 20MPa, and when the natural gas cylinder is used, a pressure reducing valve is needed to be used for reducing the pressure of the natural gas in the gas cylinder between the gas cylinder and a using terminal. The pressure reducing valve belongs to a thin-wall structural member, and is generally made of aluminum alloy materials and produced by a die casting process.

The pressure casting process of the pressure reducing valve in the prior art has the following defects:

the ejector rod is directly adopted to eject the product when the product is ejected by the general die casting die, but the product is easily damaged by ejection when the product is ejected by the ejector rod because the pressure reducing valve product of the thin-wall structural part is fragile when the product is just molded and ejected, namely the product is damaged by demolding caused by uneven stress in the ejection process, and the defective product rate of the product is increased intangibly.

Disclosure of Invention

The utility model aims to provide a die casting die for a natural gas pressure reducing valve for a vehicle, which aims to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the die-casting die for the natural gas reducing valve for the vehicle comprises a bottom plate, a lower die table, an upper die base, an air cylinder and a molded casting ejection structure, wherein the bottom plate can be fixed on a frame, the lower die table is arranged on the bottom plate, and a back plate is vertically fixed on the rear side of the bottom plate; the inner side of the lower die table is provided with a cavity, and the lower die table is provided with two die grooves; the two groups of cylinders are fixed on the back plate through angle irons, the shaft ends of the two groups of cylinders are connected with upper die holders, the upper die holders are matched with the die grooves to form a die casting die cavity, and the upper die holders can be close to and far away from the die grooves of the lower die table; the cavity is internally provided with a molded casting ejection structure which extends into the bottom side of the die cavity and can eject a molded valve shell in the die cavity, the molded casting ejection structure comprises a double-shaft motor, a screw rod, a threaded sleeve, a wedge-shaped block, a main rod, a sliding plate and a demolding assembly, wherein two shaft ends of the double-shaft motor are respectively connected with the screw rod, and the tail ends of the two screw rods are rotatably connected with the side wall of the cavity.

Preferably, the two screws are sleeved with threaded sleeves, the bottom sides of the threaded sleeves are in sliding connection with the bottom wall of the cavity, and wedge-shaped blocks are arranged on the threaded sleeves.

Preferably, the upper end of the inner side of the lower die table is also provided with a channel, the inner wall of the channel is embedded with a guide rail, the sliding plate can be in sliding connection with the guide rail, the lower end of the sliding plate is connected with the main rod, and the bottom end of the main rod is provided with a roller contacted with the end face of the wedge-shaped block.

Preferably, the demolding assembly comprises a demolding rod and a demolding plate, wherein the demolding plate is arranged at the bottom side of the mold groove.

Preferably, the top end of the lower die table is provided with a plurality of perforations, the demoulding rod is provided with a plurality of demoulding rods, the lower ends of the demoulding rods are connected with the sliding plates, the upper ends of the demoulding rods penetrate through the perforations and are connected with the demoulding plates, and the demoulding rods are sleeved with springs.

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

according to the utility model, the screw rod and the screw sleeve are matched, the screw rod is used for driving the screw sleeve to move, the screw sleeve is used for driving the wedge-shaped block, the end face of the wedge-shaped block is initially contacted with and abutted against the bottom end of the main rod, so that the main rod can be ejected upwards in a small amplitude, a product is gradually ejected by using a demolding assembly consisting of a demolding plate and a plurality of demolding rods, and the demolding plate is uniformly stressed due to larger contact force of the plurality of demolding rods, so that the product is prevented from being damaged due to ejection by directly adopting an ejector rod when the product is separated from a mold cavity, and the qualification rate of the product taken out is further improved in the mode.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

fig. 2 is a schematic plan view of the present utility model.

In the figure: 1. a bottom plate; 2. a lower die table; 201. a die cavity; 3. an upper die holder; 4. a cylinder; 5. a biaxial motor; 6. a screw; 7. a screw sleeve; 8. wedge-shaped blocks; 9. a main rod; 10. a slide plate; 11. a guide rail; 12. a stripper rod; 13. and (5) removing the template.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-2, the present utility model provides a technical solution: the die-casting die for the natural gas reducing valve for the vehicle comprises a bottom plate 1, a lower die table 2, an upper die holder 3, a cylinder 4 and a molded casting ejection structure, wherein the bottom plate 1 can be fixed on a frame, the lower die table 2 is arranged on the bottom plate 1, and a back plate is vertically fixed on the rear side of the bottom plate 1; a cavity is formed in the inner side of the lower die table 2, and two die grooves 201 are formed in the lower die table 2; the two groups of cylinders 4 are arranged and fixed on the back plate through angle irons, the shaft ends of the two groups of cylinders 4 are connected with an upper die holder 3, the upper die holder 3 is matched with the die cavity 201 and forms a die casting die cavity, and the upper die holder 3 can be close to and far away from the die cavity 201 of the lower die table 2; the cavity is internally provided with a molded casting ejection structure which extends into the bottom side of the die cavity 201 and can eject a molded valve shell in the die cavity 201, the molded casting ejection structure comprises a double-shaft motor 5, a screw rod 6, a threaded sleeve 7, a wedge block 8, a main rod 9, a sliding plate 10 and a demoulding assembly, wherein two shaft ends of the double-shaft motor 5 are respectively connected with the screw rod 6, and the tail ends of the two screw rods 6 are rotatably connected with the side wall of the cavity.

In this embodiment, two threaded rods 6 are respectively sleeved with a threaded sleeve 7, the bottom side of the threaded sleeve 7 is slidably connected with the bottom wall of the cavity, and wedge-shaped blocks 8 are arranged on the threaded sleeves 7.

In this embodiment, a channel is further provided at the upper end of the inner side of the lower die table 2, a guide rail 11 is embedded in the inner wall of the channel, a sliding plate 10 is slidably connected with the guide rail 11, the lower end of the sliding plate 10 is connected with a main rod 9, and rollers contacting with the end surface of the wedge block 8 are installed at the bottom end of the main rod 9.

In this embodiment, the stripper assembly comprises a stripper bar 12 and a stripper plate 13, wherein the stripper plate 13 is disposed at the bottom side of the cavity 201.

In this embodiment, the top end of the lower die table 2 is provided with a plurality of perforations, the demoulding rod 12 is provided with a plurality of perforations, the lower end of the demoulding rod is connected with the sliding plate 10, the upper end of the demoulding rod passes through the perforations and is connected with the demoulding plate 13, and the demoulding rod 12 is sleeved with a spring.

In this embodiment, the above-mentioned cooperation that adopts screw rod 6, swivel nut 7 utilizes screw rod 6 to drive swivel nut 7 and removes to make swivel nut 7 drive wedge 8, make wedge 8 terminal surface preliminary and mobile jib 9 bottom contact and support and press, thereby make main jib 9 can be little upwards ejecting, utilize the stripper subassembly that stripper plate 13 and a plurality of stripper rods 12 constitute to push out the product gradually, because a plurality of stripper rods 12 contact force is bigger, make stripper plate 13 atress even simultaneously, can avoid directly adopting the ejector pin to push out directly when separating product and die cavity and lead to the product to damage, further promote the qualification rate that the product was taken out through this kind of mode.

Notably, are: the whole device controls the realization of the device through the total control button, and because the equipment matched with the control button is common equipment, the device belongs to the prior art, and the electrical connection relation and the specific circuit structure of the device are not repeated here.

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

Claims

1. The die-casting die for the natural gas reducing valve for the vehicle is characterized by comprising a bottom plate (1), a lower die table (2), an upper die holder (3), an air cylinder (4) and a formed casting ejection structure, wherein the bottom plate (1) can be fixed on a frame, the lower die table (2) is arranged on the bottom plate (1), and a back plate is vertically fixed on the rear side of the bottom plate (1); a cavity is formed in the inner side of the lower die table (2), and two die grooves (201) are formed in the lower die table (2); the two groups of air cylinders (4) are arranged and fixed on the back plate through angle irons, the shaft ends of the two groups of air cylinders (4) are connected with an upper die holder (3), the upper die holder (3) is matched with the die cavity (201) and forms a die casting die cavity, and the upper die holder (3) can be close to and far away from the die cavity (201) of the lower die table (2); the cavity is internally provided with a molded casting ejection structure which extends into the bottom side of the die cavity (201) and can eject a molded valve casing in the die cavity (201), the molded casting ejection structure comprises a double-shaft motor (5), a screw rod (6), a threaded sleeve (7), a wedge-shaped block (8), a main rod (9), a sliding plate (10) and a demolding assembly, wherein two shaft ends of the double-shaft motor (5) are respectively connected with the screw rod (6), and the tail ends of the two screw rods (6) are rotatably connected to the side wall of the cavity.

2. The die casting die for the natural gas reducing valve for the vehicle according to claim 1, wherein: the screw rods (6) are sleeved with screw sleeves (7), the bottom sides of the screw sleeves (7) are in sliding connection with the bottom wall of the cavity, and wedge-shaped blocks (8) are arranged on the screw sleeves (7).

3. The die casting die for the natural gas reducing valve for the vehicle according to claim 1, wherein: the upper end of the inner side of the lower die table (2) is also provided with a channel, a guide rail (11) is embedded in the inner wall of the channel, a sliding plate (10) can be in sliding connection with the guide rail (11), the lower end of the sliding plate (10) is connected with a main rod (9), and the bottom end of the main rod (9) is provided with a roller which is in contact with the end face of the wedge-shaped block (8).

4. The die casting die for the natural gas reducing valve for the vehicle according to claim 1, wherein: the demolding assembly comprises a demolding rod (12) and a demolding plate (13), wherein the demolding plate (13) is arranged on the bottom side of the mold groove (201).

5. The die casting die for the natural gas reducing valve for the vehicle according to claim 1, wherein: the top end of the lower die table (2) is provided with a plurality of perforations, the demoulding rod (12) is provided with a plurality of demoulding rods, the lower ends of the demoulding rods are connected with the sliding plate (10), the upper ends of the demoulding rods penetrate through the perforations and are connected with the demoulding plate (13), and the demoulding rods (12) are sleeved with springs.