CN223171892U - Double-station die clamping mechanism - Google Patents

Abstract

A double-station clamping mechanism includes a first fixed platen 1, four large rods 2, and a movable mold mechanism 3. The movable mold mechanism 3 is provided with a first movable mold plate 31. A first mold station is formed between the first fixed platen 1 and the first movable mold plate 31. The double-station clamping mechanism further includes a second fixed platen 4. The movable mold mechanism 3 is further provided with a second movable mold plate 34. A second mold station is formed between the second fixed platen 4 and the second movable mold plate 34. The double-station clamping mechanism of the present invention has two mold stations. When the first mold station is clamped, the second mold station is also opened. When the first mold station is opened, the second mold station is also clamped. Compared with the traditional clamping mechanism with only one mold station, the double-station clamping mechanism can drive two molds for simultaneous production, thereby greatly improving the working efficiency of the clamping mechanism.

Description

Double-station die clamping mechanism

Technical Field

The utility model belongs to the field of mold forming machinery, and particularly relates to a mold clamping mechanism of a mold forming machine, which is particularly suitable for mold clamping mechanisms of injection molding machines and die casting machines.

Background

At present, the traditional mould forming machines such as injection moulding machines and die casting machines are of single-station structures, namely, each injection moulding machine or die casting machine can only be provided with one set of mould for production, and once for each forming, the mould closing mechanism needs to be closed and opened once, and in addition, the mould forming machines also need to undergo working links such as material injection, cooling forming, workpiece ejection and the like, so that the whole production period is longer.

Disclosure of utility model

The utility model aims to solve the technical problem of developing a double-station die clamping mechanism which is applied to an injection molding machine or a die casting machine, and can be used for installing two sets of dies for simultaneous production, wherein the molding procedures of each set of dies are not interfered with each other and the cycle period is partially overlapped, so that the overall production efficiency is greatly improved, which is basically equivalent to the operation of two molding machines of one molding machine, the utilization rate of equipment is improved, and the occupied area is reduced.

The double-station mold clamping mechanism is characterized by further comprising a second fixed mold plate (4), wherein the movable mold mechanism (3) is further provided with a second movable mold plate (34), and a second mold station is formed between the second fixed mold plate (4) and the second movable mold plate (34).

The double-station mold clamping mechanism is characterized in that the movable mold mechanism (3) acts in the direction of the first fixed mold plate (1), namely the mold clamping of the first mold station and the mold opening of the second mold station, and the movable mold mechanism (3) acts in the direction of the second fixed mold plate (4), namely the mold clamping of the second mold station and the mold opening of the first mold station.

Compared with the prior art, the utility model has the beneficial effects that one forming machine is used for simultaneously producing two sets of dies, so that the single-machine production efficiency is greatly improved, one device dries the activities of two devices, the use value of the device is improved, and the occupied area is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a diagram of the movable mold mechanism of the present utility model;

FIG. 3 is a schematic view of a first embodiment of the present utility model;

In fig. 1 to 3, the correspondence between the names of the respective components and the reference numerals of the drawings is:

1-first fixed template, 2-big rod, 3-movable mould mechanism, 31-first movable template, 32-high-pressure cylinder barrel, 321-first oil cavity, 322-second oil cavity, 33-ejection mechanism, 331-double-output shaft piston rod, 332-first thimble rod, 333-second thimble rod, 34-second movable template, 35-high-pressure piston, 4-second fixed mould plate,

5-Double-station mold clamping mechanism, 6-first injection device, 7-second injection device, 8-first mold, 81-ejector plate, 9-second mold and 10-frame.

Detailed Description

Embodiments of the present utility model will now be described in further detail with reference to the accompanying drawings and examples, which are provided to illustrate the principles of the utility model and not to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is two or more, and the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected" and "connected" are to be construed broadly, and for example, they may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The double-station die clamping mechanism (5) is applied to a hot chamber die casting machine, a first injection device (6) and a second injection device (7) are respectively connected to the left side of a first fixed die plate (1) and the right side of a second fixed die plate (4), the first injection device (6) and the second injection device (7) are simultaneously connected to a frame (10), the first fixed die plate (1) and the second fixed die plate (4) are fixed on the frame (10), and a first die station and a second die station of the double-station die clamping mechanism (5) are respectively provided with a first die (8) and a second die (9).

The movable die mechanism (3) in the double-station die assembly mechanism (5) comprises a first movable die plate (31) and a second movable die plate (34), an ejection mechanism (33) is further arranged, the ejection mechanism (33) is a double-ejection-shaft oil cylinder fixed between the first movable die plate (31) and the second movable die plate (34), the moving direction of a double-ejection-shaft piston rod (331) of the double-ejection-shaft oil cylinder is perpendicular to the die mounting surfaces of the first movable die plate (31) and the second movable die plate (34), two ends of the double-ejection-shaft piston rod (331) are respectively connected with a first ejector pin rod (332) and a second ejector pin rod (333), when hydraulic oil is filled into an oil cavity on the right side of the double-ejection-shaft oil cylinder of the ejection mechanism (33), the double-ejection-shaft piston rod (331) moves towards the first movable die plate (31) to drive the first ejector plate (81) of the first die (8) for ejecting a molded die casting, when the hydraulic oil is filled into the left side of the double-ejection-shaft oil cylinder of the ejection mechanism (33), the double-ejection-shaft piston rod (331) drives the double-ejection-shaft piston rod (331) to move towards the second movable die plate (34) to eject the second die plate (9) in the same direction as the second movable die plate (33), the ejector plate (9) is arranged between the first movable die plate (8) and the second die plate (32) and the second die plate (9, the two ends are respectively connected with a first movable die plate (31) and a second movable die plate (34), four large rods (2) are respectively connected and fixed on the first fixed die plate (1) and the second fixed die plate (4), the four large rods (2) penetrate through the movable die mechanism (3) and are in one-to-one coaxial fit with four high-pressure cylinder barrels (32) of the movable die mechanism (3), high-pressure pistons (35) are respectively fixed on the four large rods (2), the four high-pressure cylinders are in sealing sliding fit with the high-pressure cylinder barrels (32) to form four high-pressure oil cylinders, a first oil cavity (321) and a second oil cavity (322) are formed under the isolation of the high-pressure pistons (35), hydraulic oil is filled from the first oil cavity (321), the movable die mechanism except the high-pressure pistons (35) can be pushed to move towards the first fixed die plate (1) along the axis of the large rods (2), and the movable die mechanism except the high-pressure pistons (35) can be pushed to move towards the second fixed die plate (4) along the axis of the large rods (2).

When the movable die mechanism (3) moves towards the first fixed die plate (1) except the high-pressure piston (35), the first die (8) arranged at the first die station is clamped until the first die (8) is completely closed and corresponding clamping force is generated, the first injection device (6) injects liquid metal material into the first die (8) for a certain time to cool and solidify to form a die casting, the next process is that the part of the movable die mechanism (3) except the high-pressure piston (35) moves towards the second fixed die plate (4), the first die (8) is opened, the second die (9) is clamped until the second die (9) is completely closed and corresponding clamping force is generated, the second injection device (7) injects liquid metal material into the second die (9) for a certain time to cool and solidify to form the die casting, in the process, the first die (8) is in an opened state, the ejection mechanism (33) acts, the first ejector rod (332) pushes the first die (8) to eject the first ejector pin (8) to eject the first die (8) from the first die (8) until the first ejector pin (81) and the second die (8) are ejected, and the first ejector pin (8) are ejected and the second die (8) are ejected until the first ejector pin and the second die (8) and the second ejector pin) are formed, the next procedure is that the part of the movable mould mechanism (3) except the high-pressure piston (35) moves towards the first fixed mould plate (1), the first mould (8) is closed, the second mould (9) is opened, then the first mould (8) is injection-molded, the die casting molded by the second mould (9) is ejected by the ejection mechanism (33) to separate from the second mould (9), until the die casting in the second mould (9) is released and the die casting of the first mould (8) is injection-molded, so that the movable mould mechanism (3) always moves in a reciprocating mode, the first mould (8) and the second mould (9) are opened and closed directly, the opening of the first mould (8) is the closing of the second mould (9), and the opening of the second mould (9) is the closing of the first mould (8), and the cycle period is basically the same as that of one set of moulds only when the first mould (8) is produced in a production process mostly overlapped on the second mould (9).

In this embodiment, two sets of dies are installed on one device for simultaneous production, and the cycle period of the device is substantially the same as that of the hot chamber die casting machine in the prior art, but the hot chamber die casting machine in the prior art can only be installed for production by one set of dies, so that compared with the hot chamber die casting machine in the prior art, the production efficiency of this embodiment is doubled.

In the field of mold forming machines, such as injection molding machines and cold chamber die casting machines, the structure of a mold clamping mechanism is basically the same as that of a hot chamber die casting machine, and each equipment can only be provided with one set of mold for production, and in the same way, the double-station mold clamping mechanism can be realized by referring to the embodiment mode, so that two sets of molds are installed for simultaneous production, and the production efficiency is improved.

The present utility model is not limited to the above-described embodiments, but the present utility model also includes various modifications and variations of the present utility model if they fall within the scope of the claims and the equivalents thereof, without departing from the spirit and scope of the present utility model.

Claims (2)

1. A double-station clamping mechanism, comprising a first fixed platen (1), four large rods (2), and a movable mold mechanism (3), wherein the movable mold mechanism (3) is provided with a first movable platen (31) and an ejection mechanism (33), and a first mold station is formed between the first fixed platen (1) and the first movable platen (31), and is characterized in that it also comprises a second fixed platen (4); the movable mold mechanism (3) is further provided with a second movable platen (34); a second mold station is formed between the second fixed platen (4) and the second movable platen (34); the movable mold mechanism (3) is further provided with four high-pressure cylinders (32) and four high-pressure pistons (35), and the high-pressure cylinders (32) and the high-pressure pistons (35) are both arranged between the first movable platen (31) and the second movable platen (34). 2. A double-station mold clamping mechanism as described in claim 1, characterized in that the high-pressure piston (35) of the movable mold mechanism (3) is axially connected and fixed to the large rod (2), and is sealed and slidably matched with the high-pressure cylinder (32), and the two ends of the high-pressure cylinder (32) are respectively connected and fixed on the first movable plate (31) and the second movable plate (34), forming four high-pressure mold clamping cylinders, which can drive the movable mold mechanism (3) except the high-pressure piston (35) to slide toward the first fixed plate (1) or the second fixed plate (4) to realize the mold opening and closing function.