JPS614700A - Sheet cutter - 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 [Technical Field] The present invention relates to a sheet cutting device for cutting sheets protruding from the side edges of plywood.

[Background technology]

Conventionally, when the top surface of plywood was covered with a decorative sheet, the rings of the decorative sheet protruded from the side edges of the plywood. Therefore, as shown in FIG. 3, a plywood 32 with a decorative sheet 31 glued on both sides is conveyed by a roller conveyor 33, and a helt sander 34 is installed above the side edge of the roller conveyor 33.
Fold the ring material 31a of the decorative sheet. Then, in the later process, the plywood 32 is loaded and the ring material 31a is loaded by the worker or by hand.
The amputation was carried out. Note that the reason why the ring material 31a is not cut with the helt sander 34 is that the helt sander 34 would also shave the plywood 32 at the same time.

In this way, the ring material 31a was cut by hand, resulting in low work efficiency and poor accuracy.

[Purpose of the invention]

An object of the present invention is to provide a sheet cutting device that can automatically cut sheet scraps efficiently and cleanly without lifting the sheet.

[Disclosure of the invention]

The sheet cutting device of the present invention conveys a workpiece such as plywood with a sheet pasted on the top surface extending from the side edges on a general feeding table,
The rotating shaft is placed above the side edge of the conveyor table at right angles to the conveyance direction, and the center side in the width direction of the conveyor table is tilted high.The protruding sheet is bent along the side edge of the workpiece using a presser roll, and then the sheet is folded to the side of the conveyor table. A force is placed above the edge to cut off the sheet that protrudes at the bend.

Embodiment An embodiment of the present invention will be explained based on FIGS. 1 and 2. In the figure, reference numeral 1 denotes a roller conveyor serving as a conveyance platform for conveying the combinations Fj and 2 in the direction of the arrow. On the side of the roller conveyor 1, the base 4 is installed on a fixed guide stand (not shown) so that it can move forward and backward toward the roller conveyor 1 (in the direction of arrow B).

The base 4 is moved forward and backward by making a hole with a female thread in the base 4, screwing a male screw 5 into the hole, and rotating the male screw 5 with a motor 7 via a heald 6. On the top surface of the base 4, photoelectric switches 8. Presser rolls 9a, 9b, 9c, cutter 10
are installed so as to protrude from the center side of the roller conveyor 1 in the width direction. The extent of this protrusion is determined by the photoelectric switch 8, the blade portion 16 of the cutter 10, and the presser oars 9a, 9.
b, 9c protrude so that the contact portions to the plywood 2 are flush with each other. The presser rolls 9a, 9b, and 9c are installed in an inclined position with their rotational axes perpendicular to the conveying direction of the roller conveyor 1, and with the center side of the roller conveyor 1 in the width direction raised. Moreover, the rolls 9a, 9b, while holding down the inclined posture,
Step 9c: change from lying position to standing position. The cutter 10 mainly consists of a substrate 18 erected on the upper surface of the base 4, a guide shaft 14 fitted into a hole provided in the substrate 18, and a guide shaft 1
The blade 16 attached to the widthwise center side of the roller conveyor 1 of No. 4
It consists of The blade 16 is provided facing rearward in the conveying direction of the roller conveyor 1, and a compression spring 15 externally fitted on the kite shaft 14 between the blade and the substrate 18 biases the roller conveyor 1 toward the center in the width direction. The guide shaft 14 can be elastically retracted outward in the width direction. Blade 16
A suction port 12 of a suction blower 11 that performs a suction operation using a motor 13 is provided below and opens upward. Furthermore, a stopper 17 (see FIG. 2) that is driven up and down is provided between the photoelectric switch 8 and the presser roll 9a and between the rollers of the roller conveyor 1.

Note that the decorative sheet 3 adhered to the top surface of the plywood 2
The cutting mechanism of this embodiment protrudes from both side edges of the roller conveyor 1 and is provided on both sides of the roller conveyor 1.

Operation FIG. 2 shows an explanatory diagram of the cutting operation of the protruding ring material 3a of the decorative sheet 3.

In the same figure (A), the stopper 17 is raised slightly, and the plywood 2 with the decorative sheet 3 adhered to the upper surface is conveyed by the roller conveyor 1 toward the front of the page. The front side of the plywood 2 hits the stopper 17 and stops. In the same figure (B), the motor 7 is driven to move the base 4 in the direction of the roller conveyor 1.

The photoelectric switch 8 discovers the plywood 2 and the base 4 stops.

Furthermore, the stopper 17 is lowered to release the stoppage of the plywood 2, and the plywood 2 is conveyed by the roller conveyor 1 toward the front of the page. The ring material 3 of the decorative sheet 3 is pressed by the presser roll 9.
A is bent along the upper side edge of the plywood 2. Then, the bent end +83a is cut at the bent portion by the cutter 10 and removed by suction by the suction blower 11 (see FIG. 1).

In the sheet cutting device configured in this way, the ring material 3a is bent by the presser rolls 9a, 9b, and 9c, and the cutter 1
By cutting at zero, the sheet 3 can be neatly cut without lifting up, and the cutting work can be performed automatically. Moreover, since the plywood 2 can be cut while being transported, the work efficiency is good.

[Effects of the Invention] According to the present invention, decorative sheet scraps can be automatically and efficiently cut, and moreover, the cutting can be done neatly without the sheet lifting up.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIGS. 2A and 2B are explanatory diagrams of its operation, and FIG. 3 is a perspective view of a conventional example.

Claims (1)

[Claims] A conveyance table for conveying a plate-like workpiece having a sheet adhered to the upper surface thereof protruding from the side edges, and a rotation axis located above the side edge of the conveyance table at right angles to the conveyance direction of the conveyance table and in the width direction of the conveyance table. a presser roll that is provided with a high slope in the center and presses and bends the protruding portion of the sheet along the upper side edge of the workpiece; A sheet cutting device comprising: a cutter provided above a side edge and cutting the protruding portion along the bent portion.