JP2781967B2 - Trim piece guiding means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trim piece guiding means mainly used for a corrugator slitter scorer.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS.
Trimming with corrugator slitters 1 and 2
The trim piece 30 of the corrugated cardboard sheet 3 is a trim piece 3
When the rigidity of the cardboard sheet 3 is high or when the traveling speed of the corrugated cardboard sheet 3 is high, it is not necessarily sucked into the trim duct 4 and clogs in the opening of the trim duct 4 or flows into the subsequent process together with the product sheet. In some cases, the cut-off is wrapped around the knife cylinder or scattered on the stack of the stacker, so that the operation has to be stopped for repair or removal of trim pieces. For this reason, as disclosed in Japanese Utility Model Publication No. 6-44675 and Japanese Utility Model Laid-Open Publication No. 5-29739, a brush device or a roll device that guides a trim piece so that it can be reliably sucked into a trim duct has been devised. However, there are drawbacks such that it is relatively large and difficult to arrange in a narrow place, production cost is high, and maintenance is troublesome.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a trim piece guiding means capable of reliably sucking a trim piece having high rigidity or a trim piece traveling at a high speed into a trim duct. Another object of the present invention is to provide a trim piece guiding means which can be manufactured simply and inexpensively, is extremely small, can be easily mounted, and can be quickly replaced.

[0004]

In order to achieve the above object, the trim piece guiding means of the present invention is, as shown in the drawing, from a sheet 30 in which a trim piece 300 is slit by a pair of slitter blades 11 and 12. See, trim duct port 40
A rotating body 50 attached to the slitter blade mounting head 21 of the slitter blade 11 on the opposite side to 0 so as to be able to rotate together with the slitter blade 11, wherein the slit trim piece 300 is connected to the trim duct port 400. It is formed so that it can be guided to the trim duct port 400 with the rotation of the slitter blade 12 on the same side.

[0005] In the present invention, the rotating body composed of a truncated conical body includes a normal conical body and a truncated conical body having a convex or concave curved side surface. In addition, the rotating body includes a disc-shaped body or a cylindrical body. Further, in the present invention, the rotating body includes not only the case of rotating concentrically with respect to the slitter blade attached to the slitter blade mounting head but also the case of rotating eccentrically. Furthermore, in the present invention, the case where a plurality of rotating bodies are attached to the slitter blade is also included.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIGS. In the figure, reference numerals 11 and 12 denote a pair of upper and lower slitter blades used for trimming the slitter scorer, and 21 and 22 denote a pair of slitter blade mounting heads fitted with the slitter blades 11 and 12 and fitted to the shafts 61 and 62. , 30 are a corrugated cardboard sheet slit by a pair of slitter blades 11 and 12, 300 is a trim piece thereof, 400
Is an opening of the trim duct 40 facing below the corrugated cardboard sheet 30 passing therethrough. The rotating body 50 has a bolt hole 51 of the same diameter at a position corresponding to the plurality of bolt holes 110 of the upper slitter blade 11 and a shaft hole 21 of the slitter blade mounting head 21.
It is a truncated cone made of synthetic resin and provided with a shaft hole 52 of the same diameter at a position corresponding to zero. The rotating body 50 is screwed into the ring-shaped head 21 fitted on the shaft 61 via the bolt hole 110 of the upper slitter blade 11 and fixed thereto, and the shaft hole 52 slides on the shaft 61. Mating is possible.
The shaft hole 52 may have a larger diameter than the shaft 61. Rotating body 50
The inclined surface 53 on the side of the corrugated cardboard sheet 30 slit by the upper and lower slitter blades 11 and 12
0 with the rotation of the slitter blade 12 and the trim duct port 4
It has an inclination angle suitable for guiding to be able to inhale at 00. In addition, the rotating body 50 includes a trim piece 300.
Various shapes can be selected according to the hardness, thickness, structure, etc. of the corrugated cardboard sheet 30 and the traveling speed of the corrugated cardboard sheet 30. For example, FIG.
Alternatively, the rotating body 50B, the rotating body 50C, or the rotating body 50D having the shape shown in FIG. 5 can be used. 3 to 5, 51B, 51C and 51D are bolt holes, 52B, 52C and 52D are shaft holes, and the shaft holes 52
B, 52C or 52D can be the same diameter or larger diameter as shaft 61.

[0007]

According to the present invention, the rotating body is small in size and simple in structure, and the material thereof is made of synthetic resin and can withstand sufficiently.
Installation and replacement can be done quickly by simply using the conventional bolts of the slitter blade, and unlike conventional complicated devices, there is almost no possibility of failure of the rotating body, and trimming when trimming sheets such as cardboard sheets. The piece can be reliably guided to the trim duct.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram when FIG. 1 is viewed from the side.

FIG. 3 is an explanatory view showing another embodiment of the rotating body of the present invention.

FIG. 4 is an explanatory view showing another embodiment of the rotating body of the present invention.

FIG. 5 is an explanatory view showing another embodiment of the rotating body of the present invention.

FIG. 6 is an explanatory diagram of trimming in a conventional slitter scorer.

FIG. 7 is an explanatory diagram when FIG. 6 is viewed from the side.

[Explanation of symbols]

 11, 12 slitter blade 21 slitter blade mounting head 30 sheet 300 trim piece 400 trim duct opening 50 rotating body

Claims (1)

(57) [Claims] When a trim piece is slit by a pair of slitter blades, the trim piece is mounted on a slitter blade mounting head of the slitter blade opposite to a trim duct opening so as to be rotatable together with the slitter blade. Trim piece guiding means, being a rotating body, formed so that the slit pieces can be guided to the trim duct port together with rotation of a slitter blade on the same side as the trim duct port.