JPS5937148B2 - Automatic water heater for die casting - Google Patents

Description

[Detailed Description of the Invention] The present invention enables the ladle on the ladle support arm to move with a large stroke by swinging two arms: a swing arm and a ladle support arm that is pivotally supported at the tip of the swing arm. This invention relates to an automatic hot water supply device for die casting.

For this type of device, for example, Japanese Patent Application Laid-Open No. 51-114327
As in the publication, a ladle support arm is pivotally supported at the tip of the swinging arm, and the base sprocket, which is connected via an endless chino to a fixed sprocket provided on the shaft support of the ladle support arm, is controlled by its swinging. Since control was performed by clutch actuation from a drive source separate from the drive source for the arm, the actuation point of the clutch fluctuates significantly during repeated use.As a result, the angle of inclination between the swing arm and the ladle support arm fluctuates, making it difficult to maintain accurate control. This had the inconvenience of not being able to supply or pour hot water.

The object of the present invention is to provide an automatic hot water supply device that improves upon such disadvantages.

To explain this with reference to the illustrated embodiment, 1 is a swinging arm;
Reference numeral 2 indicates a ladle support arm, and the swinging arm 1 has a pair of left and right bearings 4, which are provided on a base 3, as shown in FIG.
The horizontal shaft 5 is rotatably supported via a lower bearing 1a on a horizontal shaft 5 which is horizontally supported on a base 3 via a sprocket 6 fixed to the outside of the bearing 1a. and pivotally supports the driven shaft 8 via the upper bearing 1b,
The ladle support arm 2 is connected to the driven shaft 8 via a bearing 2a.
is pivotally supported, and the support arm 2 connects a fixed sprocket 9 attached to the outside of its bearing 2a to a base sprocket 12 that is pivotally supported on the horizontal shaft 5 via a bearing 11 via an endless chino 10. The base sprocket 12 has an outer diameter approximately twice that of the fixed sprocket 9, and a weight 13 fixed to the outside of the bearing 11 is placed on the base 3, so that the base sprocket 12 can be horizontally It is provided so as to be stopped on the shaft 5.

Further, an engagement pin 15 supported on the swing arm 1 via a bracket 14 fixedly provided on the outside of the lower bearing 1a engages with the weight 13 when the arm 1 swings at a predetermined angle. The second sprocket 12 is then launched onto the base 3 so that the second sprocket 12 can rotate on the horizontal shaft 5.

A rotary actuator 16 for rotating the horizontal shaft 5 is provided at one end of the horizontal shaft 5, and a first sprocket 11 for rotating the driven shaft 8 is provided at the other end. second driven
A third sprocket 20 is provided at the other end of the driven shaft 8 having a sprocket 19 at one end, and a fourth sprocket 22 driven via the sprocket 20 and a chino 21 is provided on a support shaft 24 of a ladle 23.

In the figure, 25 indicates a crucible.

Since the present invention is configured as described above, the driving source γ
When the swinging arm 1 is swung by the drive, the ladle support arm 2, which is pivotally supported at the tip of the arm 1, has a fixed sprocket 9 at its base attached to the horizontal shaft 5 via a weight 13. By moving over the endless chino 10 hooked on the base sprocket 12 of a larger diameter which is in a stopped state, it swings relative to the swinging arm 1 (so that the ladle support arm 2 becomes the swinging arm). For a swing angle of 1, the tip can swing outward to give a large stroke to the ladle 23 supported by it. When the swing arm 1 rotates to the upper position, the engagement pin 15 provided on the arm 1 engages with the weight 13, and when the swing arm 1 further rotates to the left from this position. The weight 13 is lifted by the rotation, and the base sprocket 1 is then moved relative to the horizontal axis 5.
2 rotates in proportion to the swing angle of the swing arm 1, so a fixed sprocket 9 is attached to it via a chino 10.
The ladle support arm 2 is fixed to the swinging arm 1 in both layers because it cannot move relatively over the top 10. When the ladle support arm 2 is rotated, the ladle support arm 2 moves while being held at the rocking angle α, so it can be inserted deeply into the crucible 25, so that the ladle 23 comes into contact with the hot water surface when the ladle 23 is inserted into the crucible 25. When the rotary actuator 16 is actuated to rotate the horizontal shaft 5 itself, the fourth sprocket 2 is driven via the first sprocket 17.
The pivot 24 of the ladle 23 is rotated by the rotation of the ladle 23, and the tilted position of the ladle 23 is adjusted to facilitate pumping.

In this way, according to the present invention, the horizontal shaft 5 that is supported by the base 3 and rotates is provided with a drive source γ that is separate from the drive source of the horizontal shaft 5.
A swinging arm 1 that swings relative to the horizontal shaft 5 in conjunction with the horizontal shaft 5 is pivotally supported, and is attached to the tip of the swinging arm 1 via a driven shaft 8 that is pivotally supported in conjunction with the horizontal shaft 5. A ladle support arm 2 is provided, and a ladle 23 that is linked to the driven shaft 8 is pivotally supported at the tip of the ladle support arm 2, and a fixed sprocket 9 is provided at the base of the support arm 2. A base sprocket 12 which is interlocked with each other via an endless chain 10 is pivotally supported on the horizontal shaft 5, and is mounted on the base sprocket 12 on the base 3, and when the swing arm 1 swings in a predetermined manner, the arm 1 Since the ladle support arm 2 is attached with a weight 13 that engages with the base 3 and lifts the base 3, the ladle support arm 2 is in a swinging state in which it swings on the swing arm 1 in conjunction with the swing of the swing arm 1. , the two states of the stopped state, which is fixed on the swing arm 1 regardless of the swing of the swing arm 1, can be maintained accurately by simply placing and launching the weight, and in the swing state. Since it is possible to obtain a large stroke and to rotate at a steep angle in the stopped state, the hot water supply operation of the ladle attached to the ladle can be carried out smoothly.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view showing an operating state, and FIG. 2 is a front view showing a main part in section. 1... Swinging arm, 2... Ladle support arm, 9... Fixed sprocket, 10...
... Endless ceno, 12 ... Base sprocket, 13 ... Weight, Meter ... Base, 5 ...
...Horizontal axis, 7...Drive source, 8...
Driven shaft, 23... Ladle.

Claims (1)

[Claims] 1 A swinging arm 1 that swings with respect to the horizontal shaft 5 in conjunction with a drive source of the horizontal shaft 5 and a separate drive source γ is supported on a horizontal shaft 5 that is supported on a base 3 and rotates. A ladle support arm 2 is provided at the tip of the swing arm 1 via a driven shaft 8 which is pivotally supported in conjunction with the horizontal shaft 5. Interlocking ladle 2
A fixed sprocket 9 is provided at the base of the support arm 20, and a base sprocket 12, which interlocks with the fixed sprocket 9 via an endless chino 10, is pivotally supported on the horizontal shaft 5. Automatic hot water supply for die casting, characterized in that a weight 13 is attached which is placed on the base 3 and is lifted from the base 3 by engaging with the arm 1 when the swing arm 1 swings in a predetermined manner. Device.