JPH0432199Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a push bar type conveyor for conveying cutting waste discharged from machine tools in a machine processing factory.

The shape of the hook attached to the push bar type conveyor to prevent cuttings from returning has a large difference in effectiveness depending on the shape and length of the cuttings. Therefore, in order to convey all the cutting waste efficiently, it is necessary to install a hook that can hold the cutting waste, but in reality, there are many types of cutting waste that are transported by the conveyor. , Attempting to realize this would result in structural complexity, leading to increased costs. Therefore, at present, only hooks targeted for specific cutting chips are installed, so there is a large variation in expected efficiency depending on the shape and length of the cutting chips.

The present invention focuses on the fact that long curled chips are conveyed in the upper layer of the conveyor, and short curled chips and powder-like chips are conveyed in the lower layer of the conveyor. The purpose of this conveyor is to transport all the cutting chips efficiently without complicating the structure of the conveyor by installing hooks that can efficiently transport short cutting chips, and hooks that can efficiently transport short cutting chips in the lower layer. It is.

In order to achieve the above object, the present invention has a trough consisting of a bottom surface with a horizontal cross section taken perpendicular to the direction of movement of cutting chips, an inclined surface continuing to the bottom surface, and an upper portion extending upward from the inclined surface, An obtuse triangular plate-shaped upper layer hook is attached to the inner wall of the upper part in parallel with the bottom surface so that one acute-angled end protrudes in the traveling direction, and one side of the obtuse-angled triangular plate-shaped lower layer hook sandwiching the obtuse angle. The inclined surface is inclined so that the reverse direction of the cutting chips is lowered, and
It is characterized in that it is attached so that the sides opposite to the obtuse angle are substantially parallel to the traveling direction when viewed from above.

Embodiments of the present invention will be described below based on the accompanying drawings. In Figs. 1 and 2, reference numeral 1 indicates a trough, an upper layer hook 2 is provided on the upper part of the inner wall, and an inclined surface following the bottom surface is provided with the trough according to the present invention. A lower hook 3 is attached.

The trough 1 consists of a bottom surface 11 whose cross section taken at right angles to the direction in which cutting chips travel is horizontal, an inclined surface 12 continuing from the bottom surface 11, and an upper portion 13 extending upward from the inclined surface 12.

An obtuse triangular plate-shaped upper hook 2 is attached to the inner wall of the upper part 13 so that one end thereof, which is parallel to the bottom surface 11 and forms an acute angle, protrudes in the direction in which cutting chips travel. As already mentioned, this upper hook 2 is used to prevent long curled cutting chips from moving backward, and since it is well known, a detailed explanation thereof will be omitted.

A plow 5 is attached to the shaft 4, and the plow 5 reciprocates to convey cutting waste in the direction of the arrow.

The lower hook 3 also has an obtuse triangular plate shape, and the third
As shown in the figure, one side 31 sandwiching the obtuse angle is attached to an inclined surface 12 following the bottom surface 11 of the trough 1 with an inclination such that the reverse direction of the cutting chips is lowered. The side (edge portion) 32 in the traveling direction, which is the other side sandwiching the obtuse angle, forms an acute angle with the inclined surface 12 in the traveling direction.

And the side 33 opposite to the obtuse angle of the obtuse triangle
are approximately parallel to the direction of travel when viewed from above (see Figure 1). The reason for this is that the cutting chips transported in this part are short curled ones or powder particles and are relatively incompressible. This is to minimize resistance to the advancement of cutting debris.

To explain the operation with reference to Fig. 4, as shown in Fig. 4 a, when the plow 5 moves forward, the cutting chips are pushed by the plow 5 and pass under the hook 3, while others ride on the hook 3 and pass. Divided into things.
Next, as shown in FIG. 5B, when the plow 5 retreats, the cutting chips tend to move backward due to mutual friction, but the hook 3 has the effect of preventing this movement.
Short, curled cuttings cause strong mutual friction due to entanglement, so it is difficult to prevent them from moving backwards on a surface.
In the hook 3, these cutting chips can be caught on the edge portion 32 to effectively prevent backward movement. especially,
Since this edge portion 32 forms an acute angle with the inclined surface 12 in the direction of movement, it is possible to reliably catch cutting chips and reliably prevent them from moving backwards.

Next, in the case of powdery cutting chips, it is effective to prevent them from moving backwards on the surface, but since the hook 3 is installed at an angle so that the direction of backward movement of the cutting chips is lowered, this can be prevented. The surface can effectively prevent reverse movement.

Since the present invention is constructed as described above, it is possible to provide a push bar type conveyor with a relatively simple construction and provided with a hook that has a reverse movement prevention effect that varies depending on the shape and length of cutting chips. can.

[Brief explanation of drawings]

Figure 1 is a top view, Figure 2 is a cross-sectional view, Figure 3 is a perspective view showing how the hook is installed, Figures 4 a and b.
FIG. 2 is an explanatory diagram of the effect of preventing backward movement of cutting waste. 1...Trough, 11...Bottom, 12...Slanted surface, 13...Top, 2...Upper hook, 3...Lower hook, 31...One side across the obtuse angle, 32...Other sides across the obtuse angle , 33...Side opposite to obtuse angle.

Claims (1)

[Claims for Utility Model Registration] A trough comprising a bottom surface with a horizontal cross section taken perpendicular to the direction of movement of cutting chips, an inclined surface continuing to the bottom surface, and an upper portion extending upward from the inclined surface, An obtuse triangular plate-shaped upper layer hook is attached to the inner wall so as to be parallel to the bottom surface and one acute-angled end protrudes in the traveling direction, and one side of the obtuse-angled triangular plate-shaped lower layer hook sandwiching the obtuse angle is inclined as described above. The surface is inclined so that the reverse direction of the cutting chips is lowered, and the obtuse-angled sides are installed so as to be substantially parallel to the direction of movement when viewed from above. Push bar type conveyor.