JPH017708Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is based on the tip of each opposing arm of a star-shaped support consisting of a plurality of radial arms arranged symmetrically opposite each other and capable of moving toward or away from each other. The object to be heated is supported in a detachable manner between the provided centers, and the object to be heated is sequentially and continuously heated while being rotated in accordance with the intermittent rotation of the angle corresponding to the number of the plurality of radial arms of the star-shaped support. This invention relates to a star-shaped rotating device for a heated object, which is particularly characterized by its simple and efficient mechanism.

The present invention will be explained according to the embodiment shown in FIGS. 1 to 3.

In FIG. 1, 1 and 27 are star-shaped supports having three radial arms, the side views of which are shown in FIGS. ing. Star support 1
A center 2, 11, 12 for supporting one end surface of the object to be heated is attached to the tip of the inner surface of each arm. The bases of the centers 2, 11, and 12 are supported by springs so that they can move in the a←→b direction. Reference numeral 3 denotes a motor for intermittent rotation of the star-shaped support, and the rotational force of the motor 3 is transmitted to a main gear 5 via a connecting gear 4. The rotation shaft 7 of the main gear 5 passes through the center of the star-shaped support 1 and the frame 13,
The intermittent rotation of the main gear 5 allows the star-shaped support 1 to rotate in a predetermined direction at predetermined angle intervals.
Centers 14, 18, and 19 for supporting the other end surface of the object to be heated are also provided at the tip of each arm of the star-shaped support 27 facing the star-shaped support 1. However, unlike centers 2, 11, and 12, these centers are provided so that they do not move in the a←→b direction. Reference numeral 15 denotes a motor for center rotation, and the rotational force of the motor 15 is transmitted via a connecting gear 16 to a main gear 17 pivotally connected to a rotating shaft passing through the center of a star-shaped support 27. The rotational force of the main gear 17 is transmitted via a connecting gear 21 to a gear 22 to which the center 14 is pivotally connected, to a gear 20 to which the center 18 is pivotally connected via a connecting gear 28, and to a connecting gear 23. via center 1
9 is transmitted to a gear 24 which is pivotally connected. Therefore, when the motor 15 is rotated at a predetermined speed, a rotational force determined by the gear ratio of the related gear is generated at each center 1.
4, 18, and 19, and these gears rotate in a predetermined direction at a predetermined speed. The shaft of the main gear 17 passes through a predetermined portion of the frame 25, as in the case of the star-shaped support 1. 6 is sprocket 61
When the sprocket 61 is rotated by operating the handle 6, its outer periphery and the rotor 8
Since a chain 62 is placed around the outer periphery of the sprocket 61, the rotor 8 rotates as the sprocket 61 rotates. Since the rotor 8 is attached to one end of the operating rod 9, the rotation of the sprocket 61 causes the operating rod 9 to rotate in a predetermined direction. A thread is cut on the outer periphery of the actuating rod 9, and the frames 13 and 25 also have threaded through holes that can be screwed into the threads cut on the outer periphery of the actuating rod. It is formed. Therefore, by rotating the actuating rod 9 in a predetermined direction,
It is connected to the frame 13 as if it were one body. The device including the star-shaped support 1 on the right in FIG. 1 and the device including the star-shaped support 27 on the left are displaced toward each other or away from each other. Thereby, the distance between the opposing centers mounted on the star-shaped supports 1 and 27 can be adjusted depending on the length of the object to be heated.

When hardening a rod-shaped object to be heated according to the present invention in such a configuration, after operating the handle 6 so that the distance between the opposing centers of the star-shaped supports 1 and 27 matches the length of the rod to be heated, the motor 15 to rotate the centers 14, 18 and 19 at the same speed. The star supports 1 and 27 are shown in FIGS. 2 and 3.
Assume that they are facing each other in the position shown in the figure.
Using a known manibrator or the like, one end surface of the bar to be heated presses the center 2 of the star-shaped support 1 in the direction b against the spring S, and the other end surface is pressed against the star-shaped support 2.
Hit the center 14 of 7. In such a case, the heated object W
is supported in rotation between centers 2 and 14. After that, drive the motor 3 to move the star-shaped support 1
Rotate in the direction of 120°d. Since the star-shaped support 27 is connected to the star-shaped support 1 through the frame 25, the operating rod 9, and the frame 13, it simultaneously rotates in the 120° d direction. As a result, the object W to be heated is fixed at a heating position of the fixed induction heating coil, and is heated in a rotating state by the induction heating coil. Meanwhile motor 3
With the above drive, the centers 2 and 1 in FIGS. 2 and 3
The bar to be heated is inserted between the centers 11 and 18, which have reached the position 4, in the same manner as described above. After a predetermined period of time has elapsed and the first bar to be heated has been heated as desired, the motor 3 is continuously driven to further rotate the star-shaped supports 1, 27 in the direction of 120°d.
As a result, the first bar to be heated is transported to a cooling mechanism such as a water tank and quenched, and the second bar to be heated is heated by an induction heating coil. A third bar to be heated is inserted between the centers 12 and 19, which have reached the position of. After a predetermined time, the motor 3 is driven to remove the star-shaped supports 1 and 2.
Rotate 7 in the direction of 120°d. Then, the first bar to be heated, which has been completely quenched, is removed from between the centers 2 and 14, and a new bar to be heated is inserted.

Thereafter, the bar materials to be heated are sequentially quenched in the same manner.

In the above embodiment, the star-shaped support is composed of three arms, but it is possible to use four or five arms and intermittent rotation of the star-shaped support at an angle of every 90 degrees or every 72 degrees. It can be implemented as appropriate.

According to the present invention, continuous quenching of the bar to be heated can be carried out efficiently using a relatively simple mechanism, and can be carried out in a relatively small space without providing a long feeding path for the heated object. It is practical in some respects.

[Brief explanation of the drawing]

Fig. 1 is a front view of the present invention, Fig. 2 is a side view of the star-shaped support 1 seen from the star-shaped support 27 direction, and Fig. 3 is a side view of the star-shaped support 27 seen from the star-shaped support 1 direction. FIG. 1, 27... star-shaped support, 2, 11, 12, 1
4, 18, 19...Center, 3...Motor for intermittent rotation of the star-shaped support, 15...Motor for center rotation.

Claims (1)

[Scope of utility model registration request] Star-shaped supports having a plurality of radial arms are arranged facing each other in symmetrical positions so that they can be moved toward each other or away from each other. One rotating body is installed in the center of one of the star-shaped supports, and it is connected to each center of the star-shaped support through a rotational force transmission means, and the other star-shaped support is connected to each center of the star-shaped support. An intermittent rotation mechanism is provided in the center of the body to rotate the star-shaped support intermittently at each angle formed by adjacent radial arms, and with the object to be heated supported between the opposing centers of the star-shaped support, The center of each arm can be rotated simultaneously at the same speed by the rotation of the one rotating body, and the intermittent rotation mechanism is configured to simultaneously rotate both star-shaped supports intermittently at a predetermined angle. A star-shaped rotary hardening device for heated objects.