JPH0810842A - Scrap borer - Google Patents

Abstract

PURPOSE:To provide a scrap borer, in which the scrap is surely grasped and easily wound to the tip part of a mandrel, in a type except a chucking device. CONSTITUTION:Pinch rolls 30 for carrying band-like scraps 1 introduced through a fixed chute 2 onto a swing chute 7 are arranged. Winding at the initial stage is executed by pushing the tip part of the mandrel 10 to the scrap 1 formed by collecting on this swing chute.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scrap borer applied to the processing of continuous narrow scrap generated in the site tring of various process lines such as wide steel strip after rolling.

[0002]

2. Description of the Related Art In a steel line, hot-rolled steel strip is produced by pickling equipment, cold rolling equipment, cleaning equipment, annealing equipment,
In various process lines such as zinc plating equipment and various processing equipment, both ends of the steel strip are trimmed with side trimmers to remove irregularities such as mill edges. This edge trimming is called side trimming, and a large amount of scrap called trimming scraps is generated by this work.

In order to process this scrap,
A scrap baller wound into a ball shape, a scrap chopper for cutting into a short fixed length, and a scrap baler for processing scrap into small pieces by a press are used.

Of the most popular scrap bolers, recently, most of them are shown in FIGS. 3 and 4.
As shown in, it is an automatic scrap bowler (hereinafter referred to as an auto bowler).

The autoboler shown in FIG. 3 is a chucking device 17 in which the scrap 1 coming into the fixed chute 2 is inserted into the chute bottom portion in which the scrap is accumulated. After that, the chucking device shifter 18 shifts the device 17 to the vicinity of the rear mandrel 10 and then inserts the retracted mandrel 10 to grasp the scrap 1 at its tip.

Next, the drum 11 is caused to act by the drum lift cylinder 24 so as to hold down the scrap 1 being wound up, and the scrap 1 is taken up. When the size of the scrap 1 reaches a certain size, the mandrel 10
Is stopped, the rear end of the scrap 1 is held by the scrap holding bar 3 driven by the holding bar cylinder 4, and the scrap 1 is cut by the scrap cutter 5 driven by the cutter cylinder 6, Scrap 1
And cut the edge.

The scrap 1 wound up (see the scrap ball 9) is thrown into the box such as a scrap bucket by the tilting of the swing chute 7 driven by the chute cylinder 8 after the mandrel 10 moves backward, and is appropriately processed.
In the figure, 12 is a casing and 13 is a chute support frame.

The point of this auto-boler is the chucking device and its shifter. However, the scraper cannot be surely grasped by the chucking device, and when the gear shifts rearward, the mandrel may not be able to insert the scrap. Is a problem.

The autoboler shown in FIG. 4 is not much different from the structure of FIG. 3 except for the chucking device 20.
That is, in the chucking device 20, FIG. 3 shows a form in which the scrap 1 is gripped and then slid backward, but in FIG. 4, after the chucking device 20 grasps the scrap 1, the mandrel 10 is located near the mandrel 10. This device 20 is provided with a chucking cylinder 21, a shift cylinder 22 and a swing cylinder 23 that actuate the claws at the tip by a method in which the tip is swung to insert the scrap 1 into the mandrel 10.

Incidentally, reference numeral 25 in the drawing denotes an exit side chute, and the other parts are the same as those in FIG. 3, so the same members as those in FIG. Similar to the autoboler shown in FIG. 3, this autoboler also has a problem that scrap is not delivered steadily.

[0011]

Since the autoboler is an important device that forms a pair with the side trimmer, in order to prevent a serious accident that would stop the line due to a scrap processing failure in the autoboler, be sure to There is a strong demand for a working autoboler.

In addition, when a problem occurs in scrap processing, a person always approaches the scrap bowler for the purpose of processing the problem, but this often causes a personal injury, so that a safe auto-boler that does not easily cause a personal injury can be realized. Is strongly requested.

As described in the previous section, the problem with the conventional auto-boler is that the grasping of scrap by the chucking device and the delivery to the mandrel are not successful.
In other words, it is assumed that the scrap is at the bottom of the chute, but the reality is that the scrap does not accumulate in the bottom and escapes upward, that is, the scrap is spread all over the chute. It has to be. It must be said that it is extremely difficult to grasp the scrap spread in the chute with the tip of the chucking device having only one point.

The tip of the chucking device is shaped like a fork, a human finger, or an eagle's nail so that scraps can be easily grasped, but in most cases, it is possible to reliably grasp the scrap with a fingertip or a nail. Instead, it is often hooked at the tip. This is not reliable when inserting the scrap tip into the mandrel. There is no guarantee that the scrap will fall into the center of the mandrel when it swings, or that the scrap does not have tension so that it will also be the center of the mandrel at this time.

In short, whether to ensure chucking,
We have to think of methods other than chucking.

[0016] Therefore, an object of the present invention is to provide a scrap boller capable of reliably grasping scrap and easily winding it around the tip of a mandrel by a method other than the chucking device.

[0017]

In order to achieve the above object, the structure of the present invention is provided with a pinch roll for transporting a strip-shaped scrap guided through a chute onto the swing chute, and the swing chute is provided on the swing chute. It is characterized in that the mandrel tip is pressed against scraps formed by agglomeration to perform initial winding. Further, it is preferable that a pusher for pushing scrap toward the pinch roll side is provided at the bottom of the chute.

[0018]

According to the above construction, in the case of scrap of thin material,
It easily accumulates at the bottom of the chute, so it can be easily grasped with a pinch roll. Further, in the case of heavy-weight scrap, it spreads in the chute space, but is formed in a size that can be grasped by the pinch roll by the action of the pusher.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a first embodiment of the scrap bolster according to the present invention. The same members as those in FIGS. 3 and 4 are designated by the same reference numerals, and a duplicate description will be omitted.

As shown, a pinch roll 30 for transportation and a scrap cutter 5 are arranged side by side at the end of the fixed chute 2. The upper and lower rolls of the pinch roll 30 are pressed against each other by a pinch roll cylinder 31.

A mandrel 10 for winding up scrap is arranged on the downstream side of the scrap cutter 5, and a swing chute 7 is provided below the mandrel 10 so that balls of the scrap 1 wound around the mandrel 10 (scrap) The ball 9) is supported from below. The scrap ball 9 is pressed from above by the drum 11. Incidentally, reference numeral 14 in the figure is an exit gate.

With such a structure, when the scrap 1 is a thin material (0.1 to 1.2 mm), for example, the scrap 1 easily gathers in the lower part of the fixed chute 2, and thus the pinch roll 3 is used.
Easily grasped at 0. As a result, swing shoot 7
A lump of scrap 1 is formed on the top of the mandrel 1
It is definitely inserted into 0.

FIG. 2 shows a second embodiment of the scrap bowler according to the present invention. The same members as those in FIG. 1 are designated by the same reference numerals and duplicate description will be omitted.

This is an example in which the pusher 15 and the pusher cylinder 16 are incorporated in the fixed chute 2 portion so that the scrap 1 dispersed in the chute can be easily bitten into the pinch roll 30 as a small mass. It is similar to FIG. Therefore, this device is mainly used for scrap 1 (1.2 to 3.2 mm) of thick material that spreads in the chute space.
It is suitable for use.

[0025]

As described above, according to the present invention, a pinch roll for transporting a strip-shaped scrap guided through a chute onto a swing chute is provided, and the scrap formed on the swing chute is collected. Since the initial winding is performed by pressing the tip of the mandrel, the scrap in the chute can be reliably wound around the mandrel, which greatly improves safety and reduces the manufacturing cost of the device. Is obtained.

[Brief description of drawings]

FIG. 1 is a side sectional view of a first embodiment of the present invention.

FIG. 2 is a side sectional view of a second embodiment of the present invention.

FIG. 3 is a side sectional view of a conventional example.

FIG. 4 is a side sectional view of a different conventional example.

[Explanation of symbols]

 1 Scrap 2 Fixed chute 5 Scrap cutter 7 Swing chute 10 Mandrel 15 Pusher 30 Pinch roll

Claims (2)

[Claims] 1. A pinch roll that conveys a strip-shaped scrap guided through a chute onto a swing chute is provided, and the tip of the mandrel is pressed against the scrap formed on the swing chute for initial winding. A scrap bowler that is characterized by 2. The scrap bowler according to claim 1, wherein a pusher for pushing scrap toward the pinch roll is provided at the bottom of the chute.