JPS6214444B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a conveyor for discharging chips.

As machine tools become faster and more heavy-duty, the disposal of chips becomes an increasingly important issue and is a struggle for design engineers and field workers. For this purpose, a discharge conveyor is built into the machine or installed under the floor. This type uses a screw type or a hinge type with protrusions, but they are expensive, are limited in mounting location, and are not fully satisfactory in terms of performance. Also, JP-A-57-83337 is known as a chip conveyor. In this method, an endless link chain is passed through a conveying trough, and blades having a size close to the inner diameter of the trough are attached to this chain at appropriate intervals, and the chips are circulated through the trough to convey the chips.

Therefore, the present invention has been made in view of the above, and is an object of the present invention to provide a conveyor that is inexpensive, durable, and flexible, and that efficiently discharges chips from the chip receptacle.
In the present invention, an endless wire is supported by an eccentric roller, and a plurality of chip-catching members are attached to the wire at appropriate intervals so as to face the chip at a gap that is more than twice the eccentricity of the chip receiver and the eccentric roller. It is made to move by swinging a wire.

Embodiments of the present invention will be described below based on the drawings. A chip receiving trough 1 provided on the side surface of a machine tool or the like has a droplet 1a cut at the bottom of the end. At both ends of this gutter, a driving roller 2 rotated by a motor (not shown) and a driven roller 3 that applies tension are rotatably installed, and the rollers 2 and 3 are loaded with chips at equal intervals. groove 2a into which the part fits,
3a are cut at equal intervals on the circumference, and grooves for receiving the wire are formed on the circumference. A steel wire 4 is stretched between the driving roller 2 and the driven roller 3 and has a plurality of chip catching pieces 5 fixed to the entire circumference at intervals equal to the intervals between the grooves 2a and 3a. A chip chute 6 is attached below the drop opening 1a of the chip receiving trough 1, and a chip collecting and distributing vehicle 7 is placed at the outlet of this chute 6. The type of chip holding part can be freely selected as long as it is easy to hold the chips, but for example, as shown in FIG. Pour the metal into the mold and fix it. In this case, the wire 4 is a single continuous wire and has particularly excellent durability. Further, as shown in FIG. 4, a ring 53 or a polygonal ring is used and the ring is connected endlessly by the wire 4. In this case, the length of the wire is short enough to match the distance between the grooves of the roller. Further, as shown in FIG. 5, a ring 55 is inserted into a fixture 54 fixed to the wire 4 by caulking or the like. In this case, the wire 4 is one continuous wire. Also, the hanging member may be a bucket, and in this case, it is effective for removing casting chips, and is effective when the wire is arranged so as to lift it in the vertical direction.

When the drive roller 2 rotates due to the rotation of a motor (not shown), the hook member 5 engages with the groove 2a, so the wire 4 rotates in the direction of the arrow, causing the hook member 5 to rotate.
moves, and the chips collected in the chip receiving trough 1 are collected and dropped into the chip chute 6 from the drop opening 1a, and collected in the collection and delivery vehicle 7.

Next, as an example of how to use this wire conveyor, we will explain the case where it is installed inside the table of a machining center.
This will be explained based on FIGS. table 10
The inner side 10a of the outer edge serves as a chip collection groove, and two droplets 10b are provided near the corners.
An eccentric drive roller 11 is rotatably supported horizontally at one corner of the reservoir groove 10a, and is rotated by a motor (not shown). At the other three corners, similarly eccentric driven rollers 12, 13, and 14 are rotatably supported horizontally, and each roller has grooves cut at equal intervals on its outer periphery and receives wires on its circumference. A groove is formed. This four corner roller 1
A conveyor made of an endless wire 4 is stretched between 1, 12, 13, and 14. And swarf hanging piece 5
has a gap with respect to the chip collecting groove that is more than twice the eccentricity of the roller.

When the drive roller 11 is rotated by a motor (not shown), the wire 4 is moved because the hook member 5 is engaged with the groove of the drive roller 11. Since the driving roller 11 and the driven rollers 12, 13, and 14 are all eccentric, the path of the wire 4 is swung with a width twice the amount of eccentricity, and the chips accumulated in the collecting groove 10a are evenly discharged. Note that it is also possible to arrange multiple rows according to the shape width of the reservoir groove.

As described in detail above, the present invention is a wire conveyor in which a plurality of hanging members are fixed to the wire around the entire circumference, supported by eccentric rollers, and moved by swinging inside the chip receiver, so the structure is simple. It can be freely deformed and has great flexibility, so it can efficiently and reliably discharge chips from the chip receiver on the table of a milling machine or machining center. In addition, it has a small number of parts, has excellent durability, and can be manufactured at low cost.

[Brief explanation of the drawing]

Figure 1 is a usage diagram of the wire conveyor of the present invention, Figure 2 is a perspective view of Figure 1, Figures 3, 4, and 5 are examples of hanging members, and Figure 6 is a table. FIG. 7 is an enlarged view of the drive roller portion of FIG. 6, which is a plan view when the device is in use. 4...Wire, 5,51,53,55...Holding member, 2,11...Drive roller, 3,12,13,
14...Followed roller.

Claims (1)

[Claims] 1. In a conveyor for conveying chips of a machine tool, an endless wire passing through a chip receiving section is supported by eccentrically supported drive rollers and driven rollers, and the wire is provided with a gap of at least twice the eccentricity of each roller. A wire conveyor characterized in that a plurality of chip holding members facing the chip receiving portion are attached at appropriate intervals, and the wire is moved by swinging within the chip receiving portion.