JPH0429499B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for mechanically removing spatter, slag, scale, etc. stuck to a fused product obtained by fusing a steel plate or the like using a gas cutting method or the like.

[Conventional technology]

Gas cutting is the most widely used method for efficiently cutting relatively thick steel plates, several millimeters thick or more, into predetermined shapes. As shown in Fig. 3, a melted product obtained by cutting a steel plate by the gas cutting method has spatters 2 in which molten iron is continuously adhered in the form of particles along the cut edge on the surface of the melted product 1, and spatters 2 on the back side. Slag 3 is discontinuously adhered iron slag along the edge, scale 4 is an oxide film that adheres to the surface of the cut product, and other iron powder, red rust, dust, etc. are adhered to the surface.

In the past, in order to remove these stuck objects and finish the fusion-cut product, workers had to manually grind away the stuck objects using a hammer or a grinder.

In addition, in order to automate this work, as shown in Fig. 4, the melt-cut product 1 is fed and moved between the feed rollers 5 arranged horizontally in two rows above and below at regular intervals, and the cut products 1 are moved up and down the movement path. A method has also been attempted in which a fixed blade 6 and a rotating wire brush 7 for scraping off stuck objects are arranged so as to slide along the fuse-cut product to remove the stuck objects.

[Problem that the invention seeks to solve]

Among the conventional methods mentioned above, manual methods using hammers and grinders are extremely inefficient;
Must work under poor working conditions.

In addition, it is impossible to completely remove strongly stuck spatter and slag by simply sliding the fixed blade while transporting the melt-cut product with a feed roller, and it is impossible to completely remove the stuck objects that remain after processing. It was necessary to remove it manually using a grinder or the like.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the conventional method, an object of the present invention is to provide an apparatus that can automatically and completely remove adhered substances such as spatter, slag, and scale from both sides of a melt-cut product.

[Means for solving problems]

In order to achieve the above object, the inventor of the present invention has conducted extensive research and found that a plate-shaped fusion cut product is forcibly conveyed parallel to the surface of the plate while rotating at high speed along the conveyance path of the fusion cut product. By arranging the spiral cutter and rotating wire brush so that they slide over the melted product, the spiral cutter completely removes any stuck substances, and the rotating wire brush also completely cleans out any deposits such as scale. The present invention was completed based on the discovery that the present invention can be removed.

Next, the contents of the present invention will be explained in detail with reference to the drawings. FIG. 1 is a front view of a device for removing adhered substances from melt-cut products according to the present invention, and FIG. 2 is a plan view thereof.

Reference numeral 8 denotes a frame that supports the entire apparatus, and a fixed frame 10 that horizontally supports the roller conveyor 9 on the upper part.
has. Supports 11 are erected at the four corners of the pedestal 8,
A movable frame 13 is suspended by a coil spring 12 whose one end is supported at the top of each column, and is disposed parallel to the fixed frame 10 so as to be movable up and down at intervals.

A plurality of conveyor rollers 14 are installed horizontally and parallel to each other on the fixed frame 10 and the movable frame 13, and a chain 16 is driven by separate upper and lower conveyor drive motors 15 (the upper drive motor is not shown). etc., are rotated at the same speed,
A roller conveyor 9 is configured.

Reference numeral 17 denotes a spiral cutter which is the core of the present invention, and includes a lower fixed frame 10 and an upper movable frame 1.
Two rollers are provided in each of the rollers 3 and parallel to the conveyance rollers 14. Each spiral cutter 17 is supported by a bearing 20 that is movably supported in the vertical direction via a coil spring 19 with respect to a bearing support frame 18 fixed to the fixed frame 10 or the movable frame 13. The cutters 17 are urged toward each other. Each spiral cutter 17 has separate upper and lower cutter drive motors 21, 2.
1', it is driven to rotate at high speed via a chain 22.

Reference numeral 23 denotes a wire brush, which is a cylindrical brush in which steel wires are installed radially.
4 and parallel to this. Each wire brush 23 is driven via a chain 25 by separate upper and lower brush drive motors 24, 24'.

In order to adjust the vertical position of the movable frame 13 according to the thickness of the melt-cut product 1, it is preferable that the top of the support column 11 is adjustable up and down.

For example, in FIGS. 1 and 2, a male thread is cut around the support column, a coil spring locking member 26 having a female screw thread that engages with the male thread is attached to each support column, and the coil spring 12 is attached to the coil spring locking member 26. Each column 11 is rotatably attached to the frame 8 with its upper end fixed, and is driven by a lifting motor 28 with a speed reducer via a sprocket foil 27 fixed to the lower end of each column and a chain wrapped around each sprocket foil. Make sure each column rotates at the same time.

Further, instead of the lifting motor 28, it may be rotated by a manual handle. In addition, the support column may be raised and lowered using a hydraulic cylinder or the like.

Reference numeral 31 denotes a cover that covers the entire device to prevent stuck substances removed by grinding from scattering.

[Effect]

In order to use the apparatus for removing adhered substances from melt-cut products of the present invention, first, adjust the lifting motor so that the distance between the surfaces of the upper and lower conveying rollers 14 is slightly narrower than the thickness of the melt-cut product. Rotate 28 to move the movable frame 1
3. Raise and lower and adjust. The upper and lower conveyance rollers 14 are rotated in opposite directions, and the spiral cutter 17
The wire brush 23 is rotated in the same direction or in the opposite direction to the conveyance rollers 14 in the same row.

When the plate-shaped melt-cut product 1 to be processed is placed on the roller conveyor 9 of the carry-in section 29 manually or by an automatic feeding device, the melt-cut product 1 is placed on the roller conveyor 9 by the roller conveyor 9.
is carried between the fixed frame 10 and the movable frame 13, and is forcibly conveyed by being sandwiched between upper and lower conveyance rollers 14. At this time, the conveyance roller 14 attached to the movable frame 13 is pushed up together with the movable frame 13 against the suspension coil spring 12 due to the thickness of the melted product.
The upper conveyance roller 14 rotates while pressing the melted product while being always urged downward. When a force is applied to widen the gap between the upper and lower conveyance rollers due to spatter and slag stuck to the front and back sides of the melt-cut product, the movable frame 13 moves up and down accordingly to absorb the pressure and move the conveyance rollers 14 No excessive force is applied to the

When the melt-cut product passes between the upper and lower spiral cutters 17 rotating at high speed, spatter and slag stuck to the front and back surfaces of the cut product are ground and completely removed while passing between the two sets of spiral cutters 17. The spiral cutter 17 has bearings 20 at both ends of its shaft that are connected to coil springs 1 mounted on the bearing support frame 18.
9 biases the upper and lower spiral cutters 17 in a direction that narrows the gap between them, so the spiral cutters 17 are always pressed against both sides of the welded product and rotate.
Grinding can be performed efficiently.

The melt-cut product 1 is further sent between rotating wire brushes 23, and the surface thereof is completely cleaned of scale, iron powder, rust, etc., and then transported out. The carried out melted products are transferred to a carrying out roller conveyor 30 placed in the front.
etc., to a predetermined location.

[Effects of the Invention] According to the device for removing adhered substances from a fuse-cut product of the present invention, spatter, slag, scale, etc. stuck to the surface of a fuse-cut product can be automatically and completely removed. Work efficiency is high, and workers are not exposed to poor working environments.

By providing the movable frame with an elevating mechanism, it is possible to process melt-cut products of any thickness.

If the movable frame is attached to the fixed frame, and the spiral cutter is attached to the movable or fixed frame via springs, no excessive force will be applied to the conveying rollers and spiral cutter, allowing stable operation over long periods of time. It can be carried out.

[Brief explanation of drawings]

FIG. 1 is a front view of a device for removing adhered substances from melt-cut products according to the present invention, and FIG. 2 is a plan view thereof. FIG. 3 is a perspective view of a melt-cut product, and FIG. 4 is a schematic front view of a conventional device for removing stuck objects from melt-cut products. 1...Fused item, 2...Spatter, 3...Slag,
4... Scale, 5... Feed roller, 6...
Fixed blade, 7... Rotating wire brush, 8... Mounting frame,
9...Roller conveyor, 10...Fixed frame, 11...
...Strut, 12...Coil spring, 13...Movable frame,
14... Conveyance roller, 15... Conveyor drive motor, 16, 22, 25... Chain, 17... Spiral cutter, 18... Bearing support frame, 19...
Coil spring, 20... bearing, 21, 21'... cutter drive motor, 23... wire brush, 24,
24'...Brush drive motor, 26...Coil spring locking member, 27...Sprocket foil, 28
...Lifting motor, 29... Carrying-in section, 30... Roller conveyor for carrying out, 31... Cover.

Claims (1)

[Scope of Claims] 1. An apparatus for removing adhered objects such as spatter and slag stuck to both sides of a plate-shaped melt-cut product, comprising a conveying means for forcibly conveying the melt-cut product parallel to the plate surface; A rotatably driven spiral cutter and a rotatably driven cylindrical wire brush are provided at positions that slide on both sides of the plate surface of the fuse cut product, sandwiching the conveyance path through which the melt cut product is conveyed. Features: A device for removing stuck objects from fused products. 2. The conveyance means mutually connects a plurality of rotationally driven conveyance rollers supported parallel to a fixed frame and a movable frame arranged parallel to the fixed frame so as to be movable at a distance from the fixed frame. 2. A device for removing adhered substances from melt-cut products as claimed in claim 1, comprising a plurality of rotationally driven transport rollers supported in parallel. 3. The device for removing adhered substances from melt-cut products according to claim 2, wherein the movable frame is suspended and supported by a coil spring whose one end is supported by the top of a column erected on the fixed frame. 4. The spiral cutter is supported by bearings attached to the movable frame and the fixed frame via coil springs, respectively, and the spiral cutters attached to the movable frame and the fixed frame are biased in a direction toward each other. A device for removing adhered substances from a melt-cut product according to claim 3. 5. The device for removing adhered substances from melt-cut products according to claim 2, wherein a plurality of the spiral cutters are provided on each of the fixed frame and the movable frame in parallel with the conveying roller. 6. The apparatus for removing adhered substances from melt-cut products according to claim 1, wherein the spiral cutter and the wire brush rotate in the same direction or in the opposite direction to that of the conveying rollers in the same row. 7. The device for removing adhered substances from melt-cut products according to claim 3, which is equipped with an elevating mechanism for elevating and lowering the top of the support.