JPH0239643Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an injection position adjustment device in a die-casting machine.

[Conventional technology]

In general, the injection mechanism of a die-casting machine is such that a gooseneck is held within the pot body, and the molten metal is injected from the nozzle part, but depending on the shape of the molded product, the injection position, that is, the height of the nozzle part may have to be changed. Conventionally,
As a device for this purpose, height adjustment screws are screwed into each of the four corners of the pot body, and by turning each height adjustment screw, the pot body is raised and lowered, thereby adjusting the height position of the nozzle part.

[Problem that the invention attempts to solve]

In the conventional device described above, each time the injection position is changed, multiple height adjustment screws must be operated, which takes time. In order to displace the height adjustment screw to a predetermined position, fine adjustment of each height adjustment screw is required, which poses a problem in that the operation is troublesome.

The purpose of this invention is to solve the above-mentioned problems of the conventional apparatus and to provide an apparatus that allows adjustment of the injection position easily and in a short time.

[Means for solving problems]

This invention to solve the above problem consists of erecting a plurality of guide rods on a pedestal, fitting the pot body into the guide rods so that it can move up and down, and forming a horizontal guide path on the pedestal. A slider having a cam surface formed on its upper surface is arranged in the guide path so as to be reciprocally movable, a stator having a driven surface abutting the cam surface is provided at the lower part of the pot body, and the slider has a cam surface formed on the upper surface. An injection position adjusting device for a die-casting machine, characterized in that the mover is screwed onto a horizontal screw shaft which is pivotally mounted on the mount so as not to be movable in the axial direction.

[Effect]

When the screw shaft is rotated, the slider slides along the guide path, which causes the stator to rise or fall along the cam surface of the slider, which means that the pot body rises or falls and the nozzle part The height position of is adjusted.

〔Example〕

As shown in FIGS. 1 and 2, reference numeral 1 denotes a pot body in which a gooseneck 2 is held, and molten metal is injected from a nozzle portion 3 of the pot body. The mold clamping mechanism includes a fixed plate 5 fixed to the tie bar 4 and a movable plate 6 slidably fitted to the tie bar 4. The molds 8 are respectively attached to the openings 9 provided in the fixed plate 5.
Molten metal is poured into the cavity between the molds 7 and 8 from the nozzle portion 3 that moves forward and backward within the mold.

The configuration described above is almost the same as the conventional one.

In this invention, a plurality of (four in the illustrated example) guide rods 11 are mounted on the pedestal 10 on which the pot body 1 is placed.
is erected, and this guide rod 11 has a large diameter part 1 in the middle part.
2, and is fixed to the pedestal 10 with a nut 13 with its lower surface engaged with the upper surface of the pedestal 10. A pair of support plates 14 fixed to the lower surface of the pot body 1 are fitted into the guide rod 11 so as to be movable up and down.
A plurality of half-shaped collars 15 are fitted onto the guide rod 11 above the guide rod 4, and a nut 16 is screwed above the collars 15.

A pair of guide grooves 17 and 18 are formed in the pedestal 10, and each guide groove 17 and 18 has two sliders 19a and 19b, respectively, each having a tapered surface, which is a cam surface, facing in opposite directions on the upper surface. ,20a,20
b is accommodated in a reciprocating manner, and sliders 19a, 19b of one guide groove 17 and sliders 20a, 20b of the other guide groove 18 are integrally connected via connecting members 21a, 21b. There is.

Each slider 19a, 19 is provided on the bottom surface of the pot body 1.
A stator 22 is provided corresponding to the sliders b, 20a, and 20b, and the stator 22 has a tapered surface on its lower surface that is a driven surface that comes into contact with the tapered surface of the slider.

A bearing plate 2 is mounted on the pedestal 10 between the guideways 17 and 18.
3 is fixed, and a horizontally oriented screw shaft 25 is pivotally connected to a bearing portion 24 provided at the intermediate portion thereof so as to be immovable in the axial direction. The threaded shaft 25 has left and right threaded parts 26a and 26b formed on both sides of the pivoting part, and these left and right threaded parts 26a and 26b have a female threaded part 27 provided at the intermediate part of the connecting members 21a and 21b.
a and 27b are screwed together.

Next, the operation of the above will be explained.

When raising the nozzle part 3, first raise the guide rod 1.
1 loosen the nut 16, remove the collar 15 by the amount that the nozzle part 3 rises, and rotate the screw shaft 25 in one direction with the handle 28 (Fig. 2), so that the sliders 19a and 20a slide together. Moko 19b, 20
b move away from each other, thereby the stator 22 rises along the tapered surface of each slider, and the pot body 1 and nozzle portion 3 rise.
Then, the removed collar 15 in the raised position is fitted into the guide rod 11 between the support plate 14 and the large diameter portion 12, and the pot body 1 is supported on the collar 15.
In this way, the nozzle portion 3 is raised, for example, from the position shown by the solid line in FIG. 1 to the position shown by the chain line. When lowering the nozzle part 3, by rotating the screw shaft 25 in the opposite direction, the sliders 19a, 20
a and the sliders 19b and 20b move toward each other, and the nozzle portion 3 is thereby lowered.

This invention is not limited to the above embodiments, and various modifications are possible. For example, guide protrusions may be provided in place of the guide grooves 17 and 18, and rollers or the like may be used as the stator.

[Effect of idea]

As described above, according to this invention, the pot body and the nozzle part move up and down just by rotating the screw shaft, so the injection position can be adjusted easily and in a short time, improving operating efficiency. can be improved.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of this invention, FIG. 2 is a plan view of the adjustment mechanism, and FIG. 3 is a right side view of FIG. 1. 1...Pot body, 2...Gooseneck, 3...
... Nozzle part, 10 ... Frame, 11 ... Guide rod, 1
7, 18...Guide groove, 19a, 19b, 20a,
20b...Slider, 22...Stator, 25...Screw shaft, 26a, 26b...Right and left threaded portions.

Claims (1)

[Scope of utility model registration request] In a die-casting machine in which a goose neck is held in the pot body and molten metal is injected from the nozzle thereof, a plurality of guide rods are erected on a stand, and the guide rods are used to support the bottom of the pot body. A horizontal guide path is formed on the pedestal by sliding it into a through hole provided in the plate, and a slider having an inclined main cam surface formed on the upper surface is arranged in this guide path so as to be able to reciprocate. A stator is provided at the lower part of the pot body, and the stator is formed with an inclined subordinate cam surface that is inclined in the opposite direction to the cam surface that contacts the main cam surface, and the slider is pivoted on the mount so that it cannot move in the axial direction. An injection position adjustment device for a die-casting machine, which is screwed onto a horizontally oriented screw shaft attached to the pot, and is configured to move the pot body up and down by rotating the screw shaft and sliding a slider.