Double station vacuum die casting machine

Patent metadata

Field	Value
Publication number	US-11383293-B2
Application number	US-202117238270-A
Country	US
Kind code	B2
Filing date	Apr 23, 2021
Priority date	Apr 24, 2020
Publication date	Jul 12, 2022
Grant date	Jul 12, 2022

Abstract

The invention provides a double station vacuum die casting machine, comprising a driving device, a first die casting unit, a second die casting unit, a feeding component, a vacuum pump and a housing, the vacuum pump is arranged outside the housing, the driving device is arranged inside the housing, and the first die casting unit and the second die casting unit are respectively arranged on both sides of the driving device; the driving device comprises a driving unit, a first injection rod assembly and a second injection rod assembly, the first injection rod assembly and the second injection rod assembly are respectively arranged on both sides of the driving unit, the first injection rod assembly is used to provide power for die casting of the first die casting unit, and the second injection rod assembly is used to provide power for the second die casting unit.

First claim

What is claimed is:

1. A double station vacuum die casting machine, wherein it comprises a driving device, a first die casting unit, a second die casting unit, a feeding component, a vacuum pump and a housing, the vacuum pump is arranged outside the housing, the driving device is arranged inside the housing, and the first die casting unit and the second die casting unit are respectively arranged on both sides of the driving device;
the driving device comprises a driving unit, a first injection rod assembly and a second injection rod assembly, the first injection rod assembly and the second injection rod assembly are respectively arranged on both sides of the driving unit, the first injection rod assembly is used to provide power for die casting of the first die casting unit, and the second injection rod assembly is used to provide power for the second die casting unit;
the driving unit comprises a stator assembly and a mover assembly, the mover assembly is arranged inside the stator assembly, the stator assembly comprises a drive base, a stator iron core, a stator winding, and a stator iron core winding groove, the stator iron core is installed inside the drive base, the drive base is installed in a middle of a bottom surface of the housing, the stator iron core winding groove is arranged inside the stator iron core, the stator winding is installed inside the stator iron core winding groove; the mover assembly comprises a mover permanent magnet and a mover sleeve, the mover permanent magnet is evenly distributed on the mover sleeve; the first injection rod assembly and the second injection rod assembly are symmetrically arranged, the first end of the mover sleeve is connected to the first injection rod assembly, and the second end of the mover sleeve is connected to the second injection rod assembly;
the first die casting unit and the second die casting unit are symmetrically arranged and have the same structure, both of the first die casting unit and the second die casting unit include a rotating device, a fixed mold assembly, a moving mold assembly, and a sliding rod;
the fixed mold assembly comprises a fixed mold, a fixed mold plate, a pressure chamber, and a pressure chamber sleeve, the first end of the fixed mold is provided with a molten metal pouring port, a cross runner, a fixed mold insert block, a molten metal remnant pouring port, a molten metal remnant cross runner, a remnant fixed mold insert block, a constant pressure passage connection port and a constant pressure passage, the fixed mold insert block is connected to the first end of the cross runner, and the second end of the cross runner is provided with a molten metal pouring port, the remnant fixed mold insert block is connected to the first end of the molten metal remnant cross runner, the second end of the molten metal remnant cross runner is provided with a molten metal remnant pouring port, the constant pressure passage connection port is connected to the constant pressure passage, the first end of the fixed mold plate is connected to the first end of the fixed mold, an inner corner of the fixed mold plate is connected to the sliding rod, the second end of the fixed mold plate is connected to the first end of the housing, and the pressure chamber is connected to the rotating device;
the moving mold assembly comprises a moving mold, a moving mold plate, an ejection cylinder, a sliding rod through hole, a moving mold insert block and a molten metal remnant moving mold insert block, the first end of the moving mold plate is connected to the second end of the moving mold, the first end of the moving mold is connected to the second end of the fixed mold, the second end of the moving mold is provided with a moving mold insert block and a molten metal remnant moving mold insert block, the second end of the moving mold plate is connected to the ejection cylinder, and an inner corner of the moving mold plate is connected to a sliding rod;
the pressure chamber is located inside the fixed mold plate, the fixed mold and the housing, the pressure chamber sleeve is arranged outside the first end of the pressure chamber, the first end of the pressure chamber is connected to the second end of the moving mold by means of the pressure chamber sleeve, and one end of the first injection rod assembly extends into the second end of the pressure chamber;
the pressure chamber is provided with a molten metal supply port and a molten metal outflow port, the molten metal outflow port is located at the upper part of the first end of the pressure chamber, the molten metal supply port is located at the upper part of the second end of the pressure chamber, the pressure chamber sleeve is provided with a sleeve molten metal pouring port, a sleeve molten metal remnant pouring port and a sleeve constant pressure passage connection port, the sleeve molten metal pouring port is connected to the molten metal pouring port, the sleeve molten metal remnant pouring port is connected to the molten metal remnant pouring port, and the constant pressure passage connection port is connected to the sleeve constant pressure passage connection port;
the pressure chamber has three positions relative to the pressure chamber sleeve by means of rotation of the rotating device:
a first position: the pressure chamber molten metal outflow port is opposite to the sleeve molten metal pouring port;
a second position: the pressure chamber molten metal outflow port is opposite to the sleeve molten metal remnant pouring port;
a third position: the pressure chamber molten metal outflow port is opposite to the constant pressure passage connection port.

2. The double station vacuum die casting machine according to claim 1 , wherein the stator iron core winding grooves are evenly arranged in the stator iron core in an annular shape, stator teeth are formed between the stator iron core winding grooves, the mover permanent magnets are in annular shape, the magnetic poles of two adjacent mover permanent magnets are opposite, and the thickness of the magnetic pole of the mover permanent magnets is the same as the width of the stator teeth;
the mover sleeve is in the shape of a hollow cylinder, the outer surface of the mover sleeve is covered with a conductive magnet to form a mover yoke, and the inner surface of the mover sleeve is provided with internal threads connecting to threads of the injection rod, a gap between the mover assembly and the stator assembly forms an air gap;
the drive base is provided with a drive device installation through hole for installing the stator iron core, and the first end and the second end of the drive device installation through hole are respectively provided with heat-insulating end covers.

3. The double station vacuum die casting machine according to claim 1 , wherein the feeding component comprises an electric heating crucible, a supporting rod and a feeding door, the second end of the fixed mold plate of the first die casting unit is connected to the first end of the housing, the first end of the fixed mold plate of the second die casting unit is connected to the second end of the housing, the feeding door is located at the upper part of the housing, the first end of the supporting rod is connected to the side of the electric heating crucible through a rotating pair, the electric heating crucible is located at the lower end of the feeding door, the second end of the supporting rod is fixedly connected to the housing at the feeding door; the vacuum pump is located at the upper end of the fixed mold plate of one of the die casting units.

4. The double station vacuum die casting machine according to claim 1 , wherein the rotating device comprises a rotating device stator assembly and a rotating device rotor assembly, the rotating device rotor assembly is provided inside the rotating device stator assembly, t

Assignees

• Univ Yanshan

Inventors

• Jin Xin
• Yu Xueqian
• Zhan Wang
• Ren Tingzhi
• Jin Yuanzhe

Classifications

• B22D17/2023

  Nozzles or shot sleeves · CPC title

• B22D17/32

  Controlling equipment · CPC title

• B22D17/14 Primary

  Machines with evacuated die cavity · CPC title

• B22D17/04 Primary

  Plunger machines · CPC title

• B22D17/22

  Dies (manufacture, see the appropriate class, e.g. B23P15/24); Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies · CPC title