JPS60252556A - Piling device - Google Patents

Abstract

PURPOSE:To prevent a sheet from generating flaws by providing a lift type tapered feed roller in front of a piler and making an air nozzle movable in the plate width direction. CONSTITUTION:A feed roller 10 provided in front of a piler is made liftable by a screw jack 12 to adjust the advance angle of a sheet into the piler, the end sections of a roll barrel are inwardly tapered, the center section is made smaller than both end sections in diameter, and the guided steel plate is inwardly warped. Accordingly, the rigidity of the sheet is improved, and the buckling due to collision to an end stop is prevented. Next, a floating air nozzle 11 is made freely slidable in the width direction of the steel plate, and even if the steel plate generates snaking during the piling and is displaced from the center, the floating air nozzle 11 is moved in the lateral direction, and unbalance of the floating force is prevented and scratches are prevented.

Description

Detailed Description of the Invention: Technical Field Regarding the piling device, the technical content described in this specification is, in particular, to control the approach angle of a thin steel plate into the piler to make the steel plate land softly on the preceding plate, and to prevent warping of the steel plate. By increasing the rigidity of the pile, it is possible to effectively avoid defects such as scratches and bends that were a concern during conventional piling.

PRIOR ART AND THEIR PROBLEMS As a method for piling thin steel sheets, as shown in FIG. 1, a common method is to feed a steel sheet 2 carried by a belt conveyor 1 into a piler 4 by a feed roller 8. At this time, in order to align the ends of the seat 2, the end stops 5 and gauge stops 6 are used to position the seat 2 in the front and back directions, and the side guides 7 are used in the lateral direction, and floating air 8 is ejected to align the seat 2 with its leading edge. 2'
It is designed to make a soft landing on top. Note that 9 in the figure is a truck that receives and loads the falling sheets 2.

However, conventional piling devices still have the following problems.

(1) Various defects occur due to changes in the material, length, thickness, etc. of the steel plate. For example, in the case of a weak peak plate, the steel plate may slide on top of the preceding plate, causing scratches, and conversely, the stiffness of the plate may be damaged. If a strong steel plate is used, it will collide with the end stop and break when it falls.

(2) If a meandering occurs in the steel plate and it deviates from the center and enters the piler, the buoyancy force due to floating air will be unbalanced, and the edge of the h'N plate will touch the preceding plate, resulting in scratches. .

Purpose of the Invention The purpose of the present invention is to provide a piling device that advantageously solves the above-mentioned problem, and can effectively avoid the occurrence of scratches and buckles when piling thin steel sheets. purpose.

Structure of the Invention The present invention provides a method for stacking a sheet obtained by shearing a thin L-plate coil by dropping it onto a piler under air blowing to reduce the impact of the fall. , installing an elevating tapered feed roller for adjusting the entrance angle of the sheet therein;
This piling device is characterized by a floating air nozzle that controls air blowing and is movable in the board width direction.

This invention will be specifically explained below.

FIGS. 2a and 2b show a preferred example of the present invention in front and plan view, and number 10 in the figure shows a tapered feed roller,
11 is a 70-ting air nozzle.

The tapered feed roller 1o is installed so that it can be raised and lowered by a screw jack 12. By adjusting the height of the roller 10, the tapered feed roller 1o (7) adjusts the angle of entry into the piler, thereby eliminating any irregularities in the entry angle. This effectively avoids the occurrence of scratches and buckles due to improper fit. In other words, in the place shown in Fig. 8, if the steel plate approaches as shown in a', it will collide with the end stop 5 and easily break, whereas if it approaches as shown in a', it will scrape against the surface of the preceding plate. Defects occur. As shown in point a, if the leading plate collides with the end stop 5 slightly above the leading plate, scratches will not occur and buckling will not occur easily. Therefore, the screw jack 12 adjusts the height of the tapered roller IO so that the steel plate enters at an angle a. It should be noted that, as a matter of course, the operating side screw jack 12 and the driving side screw jack 12' are interlocked by a shaft 13. Further, reference numeral 14 denotes an infinite speed reducer, which drives the feed roller 10 by the belt conveyor pulley 15. As the feed roller 10 moves up and down, the axial distance between the roller 10 and the conveyor pulley 15 changes. It has a function that allows the feed roller 10 to be driven without the belt loosening even when the belt is rotated.

Further, as shown in the figure, the feed roller 10 has an inwardly tapered end portion of the roll body, and the diameter of the center portion of the roll body is smaller than that of the end portion. Therefore, the steel plate that has been guided by the tapered roller 10 will have an inward curvature when it enters the piler, and its rigidity will improve and even if it is a thin plate, it will not buckle due to collision with the end stop. This will be even more advantageously prevented.

Next, regarding the floating air nozzle 11, this nozzle 11 is designed to be able to freely slide laterally with respect to the main body frame, that is, in the width direction of the drawing board. Therefore, even if a meandering occurs in the steel plate during piling and it deviates from the center, by moving the floating air nozzle 11 laterally and aligning the centers of the two, it is possible to eliminate the problem caused by the unbalance of the buoyancy force. This also advantageously prevents scratches.

In addition, in piling using the device of the present invention, it is not necessary to adjust the sliding position of the floating air nozzle 11 and the vertical position of the feed roller 10 according to each board as it enters a. It is sufficient to perform each positioning for each coil.

7 Below, we will discuss the occurrence of scratches and buckles when a thin steel strip is actually piled using the piling device according to the present invention.

In this experiment, three pilers were installed in series on the shear line. Here, the board thickness is 0.8fls+, the board width is 60cm,
The total length is 2000 m, the weight is 3 tons, the entire length is 5 (Jcm), the threading speed is 250 m, 7 minutes, the length is 1000
Piling was carried out with 10 pieces each.

Under these conditions, the number of rods is 4, and the required time is 8 minutes if the operation goes smoothly.

In addition, in this experiment, when starting to shir one coil, the deviation of the center of the coil was made to match the center of the piler by appropriately sliding the air nozzle 11, and the shirring height of the first sheet) The height was set to an appropriate height by adjusting the vertical position of the feed roller.

Now, after piling 10 nd 1ooo& sheets in 2 minutes with the first piler, the second and third piler
A similar pile was performed by the second piler, but
During this period, there were no occurrences of scratches or bends.

During piling, there was almost no variation in the width direction of the coil, and no problem occurred with regard to the height, as the piler automatically descended from the initial position by an appropriate h1 according to the plate thickness and the number of sheets to be piled.

After the first piling, it took less than 4 minutes to pull the rod out of the piler, lay a tensile stick, etc. in the specified position of the piler, and complete preparations for the next piling. According to the present invention, it is possible to completely prevent the occurrence of scratches and buckles, which were conventional concerns when piling thin steel sheets, especially surface-treated copper sheets. I can do it.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of a conventional piling device, Figure 2 a, b
are respectively a front view and a plan view of the piling device according to the present invention, and FIG. 8 is an explanatory view of how to adjust the position of the feed roller. 2... Sheet 10... Tapered feed roller 11... Floating air nozzle. Figure 1 Figure 2 (b) Figure 3

Claims (1)

[Claims] L In a piling device in which a sheet obtained by shearing a thin steel plate coil is dropped into a piler and loaded under air blowing that relieves the falling impact, the W of the piler is
A pile ring characterized in that it is provided with an elevating tapered feed roller for adjusting the entrance angle of the sheet into it, and a floating air nozzle that controls air blowing is installed so as to be movable in the width direction of the sheet. Device.