JPS6043262B2 - table transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a table transfer device for reciprocating a table that is horizontally transferred for cutting or polishing, and its purpose is to facilitate a change in the table transfer direction. An object of the present invention is to provide a table transfer device.

Next, an embodiment in which the present invention is embodied in a knife sharpening machine will be explained with reference to the drawings. 3 is a cutter fixed to the upper surface of the table 1, and 4 is a grindstone head mounted on the frame 2 facing the cutter 3 for polishing the cutter 3.

Reference numeral 5 denotes a feed shaft that is re-rotated horizontally in the vicinity of the upper end of the frame 2 along the transport direction of the table 1, and is connected to the intermediate transmission mechanism 7 by the forward and reverse rotation of a motor 6 installed in the lower end of the frame 2. The sprocket wheel 8 is fitted onto the base portion 5a of the shaft 5, and is rotated in forward and reverse directions, and a boss portion 5b is formed in the shape of a step near the center of the sprocket wheel 8.
Slightly indented relief portions 9 are formed near both ends of the boss portion 5b.

Reference numerals 10 and 10 denote a pair of left and right slide rings, and the key 1 is attached to the base shaft portion 5a on both sides of the boss portion 5b of the feed shaft 5.
1, 11 and the feed axis 5
It is fitted so that it can rotate together with the

A coil spring 12 is wound around the boss portion 5b of the feed shaft 5, and is wound along the outer periphery of the boss portion 5b so as to be elastically deformable in the axial direction of the feed shaft 5. The ends 12a, 12a are respectively fixed to both slide rings 10 by support bolts 13 to 13, and while both slide rings 10 are normally held in close contact with the boss portion 5b of the feed shaft 5 in a pinch-like manner, both slide rings The coil spring 12 is allowed to expand and deform as both spiral ends 12a move through the ring 10 and escape outward.

14 is a coil spring 12 against the bottom surface of the table 1.
The follower is protruded so as to be able to engage in the groove 12b of the coil spring 12, and when the coil spring 12 rotates in the forward and reverse directions together with the feed shaft 5, the groove 12b of the coil spring 12
b and is interlocked in the axial direction of the feed shaft 5, and the table 1 is moved back and forth in the lateral direction.

When the follower 14 reaches the vicinity of the spiral end 12a of the coil spring 12 and changes the feeding direction by reversing the feed shaft 5 and the coil spring 12, the follower 14
4 once stops at the folded end, the helical end 12a of the coil spring 12, which is pushed by the follower 14 and expanded and deformed by the inertia of the table 1, temporarily escapes to the outside together with the slide ring 10. Furthermore, when the coil spring 12 starts to reverse, the follower 14 to which the repulsive force of the spring 12 is applied starts to move backward, and the follower 14 is moved back.

Next, the operation and effects of the embodiment having the above configuration will be explained.

Now, in this example, the feed shaft 5, which is rotatably mounted horizontally along the transport direction of the table 1, is threaded along the outer periphery of the feed shaft 5 in order to engage and guide the follower 14 provided on the table 1. The coil spring 12 is wound so that it can be elastically expanded so that the helical end 12a of the coil spring 12 escapes in the axial direction of the feed shaft 5 together with the slide ring 10 when the direction of transfer of the follower 14 is changed.

Therefore, when changing the transport direction of the table 1, the inertia force accompanying the braking of the table 1 is absorbed by the expansion deformation of the coil spring, and the impact force applied to the feed shaft 5 is effectively alleviated. At the start of reverse transport of the table 1, the repulsive elastic force of the coil spring 12, which is stretched and deformed as the coil spring 12 is reversed, is applied to the follower 14, and the table 1 can be started smoothly in the transport direction, resulting in a change in the transport direction of the table 1. It has the feature of making the operation extremely smooth.

Note that when the coil spring 12 is expanded and deformed, the feed shaft 5
Since the relief part 9 is formed in the boss part 5b of the coil spring 12, the coil diameter is allowed to shorten due to the expansion deformation of the coil spring 12, and the deformation behavior of the coil spring 12 is smoothed, and the table 1 can change direction. It is slid and displaced when

In addition, the table 1 has a coil spring 12 and a follower 1.
4, the reduction ratio of the drive system is increased and the intermediate transmission mechanism can be simplified.
This has the effect of easily transmitting to the table 1 a transfer speed suitable for sharpening blades.

That is, in the present invention, a pair of left and right slide rings are attached to a feed shaft which is horizontally mounted so as to be rotatable in forward and reverse directions along the transport direction of a table placed horizontally so as to be horizontally movable, and each of which is capable of co-rotating and sliding in the axial direction. The ends of a coil spring, which is wound around the feed shaft so as to be elastically deformable in the axial direction, are respectively engaged with both slide rings, and the slide ring is fitted onto the table. By engaging the follower in the groove of the coil spring, it has the effect of alleviating the impact when changing the direction of transport of the table and smoothing the direction changing operation of the table.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 2 is a partially cutaway side view of the blade polisher, FIG. 2 is a perspective view showing the transfer mechanism, and FIG.

Claims (1)

[Claims] 1 A pair of left and right slide rings are fitted to the feed shaft, which is horizontally mounted so that it can rotate forward and backward along the transfer direction of the table that is horizontally movable. , both helical ends of a coil spring, which is helically wound around the feed shaft so as to be elastically deformable in the axial direction, are respectively engaged with both slide rings, and a follower attached to the table is connected to the coil spring. A table transfer device characterized in that the table transfer device is inserted into a groove of a spring.