JPS5845898A - Automatic refuse removing device for corrugated cardboard sheet die-cut - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic scraping device for corrugated cardboard sheets (hereinafter simply referred to as sheets) punched by a rotary die cutter.

In the corrugated box manufacturing process, a rotary die cutter punches out a sheet by rotating a blank die with a fixed punching blade and an anvil cylinder, just like a rotary printing press, so the punching speed is very fast, and the sheet punching speed is very high. With the advent of the rotary die cutter, the work has become much more efficient. However, since the sheet F that is fed by the die cutter is punched with a blank die, the product part and the scraping part are not completely separated, and the unnecessary scraping part adheres to the product part, causing the sheet to be fed as it is. There are drawbacks that are brought out. Therefore.

If the Tonokasu removal work is to be done manually.

This requires high labor costs and seriously reduces work efficiency.

The present invention provides a device that automatically and completely removes scraps from die-cut sheets and that can be easily incorporated into the continuous tube-making process, thereby shortening the entire manufacturing process time and reducing labor costs. The purpose is also to save money.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic scraping device according to the present invention will be described below with reference to the drawings.

First, an example of a conventional paper feeding device and die cutting device, which are the pre-process, will be explained. In FIG.

1 is a paper feeding device, 2 is a paper feeding table, and 3 is a paper feeding roll. 4 is a sheet, which is stacked on the paper feed table 2. 5 is a die cutting device, 6 is a die cylinder, 7 is a die, 8 is a die cutting blade, 9 is an anobyl cylinder, 10
is an anvil usually made of urethane-based synthetic resin material. In the above configuration, the sheet 4 on the paper feed table 2 is sent to the Gui-cutting device 5 by the paper feed roll 3. In the die-cutting device 5, the gouging cylinder 6 and the anvil cylinder 9 rotate at the same speed, and the die-cutting blade 8 and anvil 10, which are respectively attached to the two cylinders, punch out the sheet. An example of the state of the sheet punched out in this manner is shown in FIG.

The unprocessed sheet 4 is die-cut by a die-cutting blade 8 and an anvil 10 to form a sheet 4&. The central part 4b of sheet 4& is the product part.

The shaded portion 4c on the periphery is the dregs portion.

The device of the present invention converts such a dregs portion 4c into a product portion 4b.
It is intended to be completely separated from the

Next, an embodiment of an automatic scrap removal device according to the present invention will be described. In FIGS. 1 and 3.

11 is an automatic scraping device, and 12 is a feed roll.

Reference numeral 13 is a 9-cylinder waste tray, 14 is a film, and 15 is a hard rubber. A hard rubber 15 is fixed to the film 14 at a position corresponding to the scrap portion, and is wound around the scraping cylinder 13. Reference numeral 16 denotes a vibrating belt, and a plurality of narrow belts are stretched by a pulley 17, and are arranged at appropriate intervals so that the hard rubber 15 faces between the belts. 2. In this embodiment, a flat belt is used as the vibrating belt 16, but a V-belt is used for the flat belt 9, and the V-pulley that tensions the belt is supported on one axis. The spacing between them may be adjusted to adjust the spacing between the V-pulleys. 18 is constructed such that a bar 18b is fixed to the outer periphery of a disc 18a, for example, as shown in FIG. 4, so as to give vertical vibration to the upper surface of the vibrating belt 16 by one rotation of a vibrating roll. It was. The vibrating roll 18 may have a structure in which a cylinder is used instead of the disc 18m and a bar is fixed to the outer periphery of the two cylinders.

In the above configuration, the sheet fed by the feed roll 12 is sent on the vibrating belt 16, and while being vertically vibrated by the vibrating roll 18, the sheet 4 & is scraped off as shown in FIG. When passing through the lower surface of the cylinder 13, the hard rubber 15 pushes the waste portion 4c downward from the product portion 4b;
b is subjected to vertical vibration by the vibrating belt 16.

The waste portion 4c is completely separated from the product portion 4b.

In addition, it is necessary to push down the scraped portion of the hard rubber 15 corresponding to the die-cut position of the sheet being fed by the die-cutting blade 8.

Therefore, it is necessary that the die cylinder 6 of the goo-cutting device 5 and the scrap removing cylinder 13 of the scrap removing device 11 rotate while maintaining a constant relative position. Although the die cylinder 6 and the scraper cylinder 13 are interlocked by gears, it is necessary to provide a so-called differential device, which is a device that changes the relative position of both cylinders independently of the drive gear. Such differentials are well known to those skilled in the art and will not be described in detail here.

As described above, the automatic scrap removing device for die-cut nine-corrugated cardboard sheets according to the present invention applies vertical vibration to the die-cut corrugated cardboard sheet and presses the scraps downward with the hard rubber, so that the scraps are completely removed. It is automatically separated from the product part, eliminating the need for two people to work, which saves labor costs, and it can be easily incorporated into the continuous backing process, which has an extremely excellent effect on improving the efficiency of backing box work. .

[Brief explanation of the drawing]

FIG. 1 is a sectional front view of an embodiment of the device of the present invention. FIG. 2 is an explanatory view showing an example of a die-cutting state by a die-cutting device, FIG. 3 is a plan view of the automatic scrap removing device shown in FIG. 1, FIG. 4 is a perspective view showing an example of a vibrating p-ra, and FIG. The figure is a sectional front view showing the sludge removing action of the sludge removing cylinder. 13: Removal of scraps. 15: Hard rubber. 16: Vibration belt. 18: Vibration roll.

Claims (1)

[Claims] 1. Scattering cylinder with hard rubber (15) protruding from it (
13) A vibrating belt (16) that can give vertical vibration to the vibrating roll (18) is installed close to the bottom surface of the vibrating roll (18), and the die-cut corrugated pole sheet is conveyed onto the vibrating belt (16), and the vibrating belt (16) is moved up and down. While applying vibration, the hard rubber (1
5) An automatic scum removal device for die-cut corrugated cardboard sheets, characterized in that the scum is separated from the product by pushing down the scum of the corrugated sheet.