Injection molding machine with a movable display device

Details Injection molding machine with a movable display device Injection molding machine with a movable display device

1992-05-18

1994-05-10

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

With indicator, signal, recorder, illuminator, or inspection...

425574, B29C 4576

Patent

active

053103327

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates to an injection molding machine with a movable display device, and more particularly, to a movable display device with a high operating performance.
2. Description of the Related Art
In an injection molding machine, especially in an electrically-operated injection molding machine furnished with a numerical control device, a display device with a manual data input device is used to set various molding conditions, monitor the operating state, and warn of an abnormal operating state, for example. Thus, the display device plays an important role in the injection molding machine.
Conventional display devices provided for the injection molding machine are divided broadly into three types: stand-type display devices fixed on a stand fixed on the floor, built-in display devices contained in the injection molding machine, and pendant-type display devices suspended from a swing arm.
Some of the stand-type display devices, being fixedly arranged near the injection molding machine, sometimes become hindrances to an operator in carrying out various operations. The built-in display devices, especially large-sized CRT display devices, are so bulky and heavy in weight that they require a wide holding space, and their attachment to and detachment from the injection molding machine require some labor. Although the pendant-type display devices (see Published Unexamined Japanese Patent Application JP,A, 63-107534, for example) are advantageous in being movable between a retreating position and a working position, the length of the swing arm for suspending the display device has to be limited due to its mechanical strength. This also limits the movable range of the display device, thereby causing some problem in operating efficiency such that the display device cannot be brought to an optimum position for use. Besides, the swing arm for suspending the display device needs to be installed at a considerably high position, so that a pole for supporting the swing arm is required to be long. This requires the rigidity of the pole to be increased, which leads to high cost.


SUMMARY OF THE INVENTION

The objects of the present invention are to provide an injection molding machine furnished with a movable display device, which will not become a hindrance to the operations to be performed around the injection molding machine, requires no holding space in the injection molding machine, and provides high operating performance.
In order to achieve the above objects, an injection molding machine according to the present invention comprises a pole set up at the back of an injection unit, a swing arm supported for horizontal rotation by the pole and situated close to the top face of the injection unit, and a display device mounted on the end portion of the swing arm on the opposite side to the pole, so that the display device is movable between a retreating position over the injection unit and another working position, which is accessible for the display device from the position over the injection unit where the display device rests parallel to the front face of the injection unit.
Preferably, the swing arm is bent toward the display device working position at the middle portion thereof. Further, the pole is situated on the side of a mold clamping unit with respect to a swivel shaft of the injection unit on a base of the injection molding machine. Furthermore, the swing arm has, on the lower surface of the middle portion thereof, a ball caster rollable on the top face of the injection unit, and is supported on the injection unit through the ball caster.
As described above, the injection molding machine of the present invention is mounted on one end of the swing arm, which is swingably supported by the pole set up at the back of the injection unit situated on the opposite side to the pole, and so that the display device can be swung between the retreating position over the injection unit and the working position, which is accessible for the display device fr

REFERENCES:
patent: 3587391 (1971-06-01), Pitts et al.
patent: 4773842 (1988-09-01), Aoki

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