JPH10235603A - Safety device for double end tenoner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid flying of a thin plate material in the direction of an outlet by a work of a cutter axis when the thin plate material is carried. SOLUTION: In this device, a first limit switch 35a is fitted to a cavity side framing material 2a in front of a stopper device 32a and a moving side framing material and a second limit switch 36a is fitted to the cavity side framing material 2a in rear of the stopper device 32a and the moving side framing material. Even if the thin plate material is flied between a caterpillar chain and a presser foot by a disc saw axis, as the thin plate material strikes against a stopper 34a of the stopper device 32a, so an operator can be avoided a direct shock. Then, when the thin plate material passes, even if the first limit switch 35a in front of the stopper device is turned on, as the flying speed of the thin plate material is fast so the thin plate material strikes against the stopper 34a before the stopper 34a of the stopper device 32a lowers. Accordingly, a direct shock of the flied plate material to the operator can be avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a double-end tenoner, which prevents a thin plate from jumping toward an outlet by machining a blade shaft when the thin plate is conveyed.

[0002]

2. Description of the Related Art Conventionally, a double end tenoner is shown in FIG.
As shown in FIGS. 6 and 7, the fixed side frame member 2 a and the moving side frame member 2 b mounted on the base member 1 are mounted, and the moving side frame member 2 b rotates the screw shaft 4 by the interval adjusting motor 3. Thereby, the distance between the fixed-side frame member 2a and the movable-side frame member 2b is adjusted, and the caterpillar chains 5a and 5b are mounted on the fixed-side frame member 2a and the movable-side frame member 2b, respectively, and these caterpillar chains 5a and 5b rotate. It is rotated by a rotating shaft 7 connected to a motor 6.

[0003] Pressers 8a and 8b are attached to the upper portions of the track chains 5a and 5b, respectively.
The supporting members 9a, 9b and 10a, 10b are fixed to the supporting members 9a, 9b.
a, 11b, the supporting members 10a, 10b
The supporting members 9a, 9b and 10a, 10b are mounted on the first columns 11a, 11b so as to be slidable up and down, respectively.
It is raised and lowered by rotating the rotating shafts 14a and 14b at 3b.

Further, the pressers 8a, 8b are connected to the presser 8a, 8b via rotary connecting members 15a, 15b connected to the rotary shaft 7.
By rotating the rotary motor 6, the pressers 8a and 8b are rotated by rotating the rotary motor 6, and the plate member 16 to be carried into the fixed side frame member 2a on the side of the caterpillar chain 5a on the entrance side A. A ruler 17 for positioning one side is mounted, and a motor 18 for positioning the ruler 17 is mounted to change the processing position of the plate 16.

Further, circular saw shafts 20a, 20b and snake shafts 21a, 21b are respectively mounted on front and rear members 19a, 19b mounted on the side surfaces of the first columns 11a, 11b, respectively, and the front and rear members 19a, 19b are positioned. Motor 22
a and 22b are moved back and forth in the direction of the track chains 5a and 5b.

[0006] Further, first elevating and lowering members 23a and 23b are mounted on one side surfaces of the second columns 12a and 12b, respectively, and the first elevating and lowering members 23a and 23b are provided on the upper portions of the second columns 12a and 12b. Are moved up and down and back and forth by height adjusting motors 24a and 24b and front and rear moving motors 25a and 25b mounted on the first and second cutter members 26a and 26, respectively.
b and the second elevating and lowering front and rear members 27 attached to the other side surfaces of the second columns 12a and 12b, respectively.
a, 27b are positioned up and down and back and forth by height adjusting motors 28a and 28b and front and back motors 29a and 29b mounted on the upper portions of the second columns 12a and 12b, respectively. Are respectively provided with cutter shafts 30a and 30b.

[0007] In the conventional double-end tenoner constructed as described above, the lifting motors 13a and 13b are driven in advance in accordance with the thickness of the plate member 16 to move the pressers 8a and 8b up and down.
The distance between the caterpillar chains 5a and 5b and the pressers 8a and 8b is set, and the plate material 16 carried in from the entrance side A is set.
Is placed on the caterpillar chains 5a and 5b with one side thereof contacting the ruler 17, the caterpillar chain 5
a and 5b and the pressers 8a and 8b are fixed and transported.

When the plate 16 is conveyed to the positions of the circular saw shafts 20a and 20b and the snake shafts 21a and 21b, the side surfaces of the plate 16 are grooved by the snake shafts 21a and 21b, and then the circular saw is formed. Processing is performed again by the shafts 20a and 20b so that no fuzz appears on the processing surface.
After the cutter processing is performed at b and 30a, 30b, the operator is placed on a product pallet (not shown) by an operator at the exit side B of the caterpillar chains 5a, 5b.

[0009]

By the way, in the double-end tenoner constructed as described above, the plate material 1 is placed on the inlet side A.
The worker who carries in the caterpillar chain 5
a, 5b and a thin plate material 16 which cannot be clamped by the pressers 8a, 8b, is transferred to the circular saw shaft 20.
a, 20b or the processing shaft 21a, 21b,
The plate member 16 includes the caterpillar chains 5a and 5b and the presser 8a,
8b, the plate material 16 vigorously passes between the caterpillar chains 5a, 5b and the pressers 8a, 8b by the rotation of the circular saw shafts 20a, 20b or the snake shafts 21a, 21b. Has hit the worker moving from the top of the caterpillar chains 5a, 5b to another position on the exit side B, which may cause a large accident in some cases.

[0010]

SUMMARY OF THE INVENTION The present invention conveys a plate material brought in from an entrance portion with one side against a ruler by means of a rotating caterpillar chain mounted on a frame material and a presser raised and lowered at an upper portion of the caterpillar chain. In a double end tenoner in which both side portions and upper and lower surfaces of the plate material are processed by a circular saw attached to upper and lower or side portions of both sides of the caterpillar chain by a cutter, a side surface of an outlet portion of the frame material is provided. A first limit switch for mounting a stopper portion having a stopper mounted so as to always protrude by a cylinder, and acting on a front portion of the stopper portion by passing the plate material to lower the stopper of the stopper portion; A second rib that acts on the rear portion of the stopper by passing the plate material and raises the stopper of the stopper. It is intended to be mounted and Ttosuitchi.

[0011]

According to the present invention, an ordinary plate member is provided with a stopper device provided with a stopper which is raised and lowered by a cylinder at the outlet side of the caterpillar chain and first and second limit switches before and after the stopper device. By actuating the first limit switch previously mounted, the cylinder of the stopper device operates to lower the stopper,
When the plate material passes through the stopper device and operates the second limit switch, the cylinder of the stopper device is operated to raise the stopper.

Here, when the thin plate material is carried into the track chain, the thin plate material is skipped between the track chain and the presser and passes therethrough, but hits the worker directly because it hits the stopper of the stopper device. Without
Further, even when the first limit switch in front of the stopper device is turned on when the thin plate material passes, the speed at which the thin plate material is blown is high. In this case, the plate material that has been blown is not blown to the operator.

[0013]

1 is a plan view of a double-ended tenoner according to an embodiment of the present invention, FIG. 2 is a side view of the double-ended tenoner of FIG. 1, and FIG. 3 is a view from the exit side of the double-ended tenoner of FIG. FIG. 4 is an enlarged view of the stopper device, wherein 1 is a base member, 2a is a fixed side frame material, 2b is a movable side frame material, 3 is a distance adjusting motor, 4 is a screw shaft, 5a and 5b are caterpillar chains, 6 is a rotary motor, 7 is a rotary shaft, 8a and 8b are pressers,
9a, 9b and 10a, 10b are support members, 11a, 1
1b is a first support, 12a and 12b are second support, 13
a and 13b are elevating motors, 14a and 14b are rotating shafts, 1
Reference numerals 5a and 15b denote rotation connecting members, 16 denotes a plate member, 17 denotes a ruler, 18 denotes a motor, 19a and 19b denote front and rear members, 20
a and 20b are circular saw shafts, 21a and 21b are snake shafts, 22
a and 22b are positioning motors, and 23a and 23b are first motors.
Members before and after lifting, 24a and 24b are motors for height adjustment,
Reference numerals 25a and 25b denote longitudinal motors, 26a and 26b denote cutter shafts, 27a and 27b denote second vertically movable members,
Reference numerals a and 28b denote height adjusting motors, reference numerals 29a and 29b denote front and rear motors, and reference numerals 30a and 30b denote cutter shafts. Fixed side frame member 2a and movable side frame member 2b
Stoppers 32a, 32b are respectively mounted near the outlet side of the stoppers, and stoppers 34a, which are raised and lowered by cylinders 33a, 33b, respectively, are mounted on the stoppers 32a, 32b.
34b, and these stopper devices 32a,
First limit switches 35a and 35b are respectively attached to the fixed side frame member 2a and the movable side frame member 2b before 32b, and further, the fixed side frame member 2a and the movable side frame member 2b after the stopper devices 32a and 32b. Are mounted with second limit switches 36a and 36b, respectively.

In the double-end tenoner of this embodiment configured as described above, the caterpillar chains 5a, 5a
By operating the first limit switches 35a and 35b mounted in front of the stopper devices 32a and 32b, the plate material 16 transported by the b and the pressers 8a and 8b operates the cylinders 33a and 33b of the stopper devices 32a and 32b. Then, the stoppers 34a, 34b are lowered, and the plate member 16 passes over the stopper devices 32a, 32b to operate the second limit switches 36a, 36b.
a, 34b are raised.

Here, when the thin plate member 16 is carried into the caterpillar chains 5a and 5b, the thin plate member 16 is skipped between the track chains 5a and 5b and the pressers 8a and 8b and passes therethrough. In order to hit the stoppers 34a and 34b of the 32a and 32b, the worker at the position of the exit side B does not hit directly,
Even when the first limit switches 35a, 35b in front of the stopper devices 32a, 32b are turned on when 6 passes, since the speed at which the thin plate material 16 is blown is high,
Stoppers 32a, 32b of stopper devices 32a, 32b
Before the plate is lowered, the thin plate member 16 is stopped by the stoppers 34a and 34b.
, The plate material 16 that has been skipped will not be skipped to the operator.

As described above, in this embodiment, since the stopper devices 32a and 32b are mounted on the fixed side frame member 2a and the movable side frame member 2b on the exit side of the caterpillar chains 5a and 5b, respectively, the thin plate member 16 is erroneously formed. Even if it is carried in, it is possible to ensure the safety of the worker on the exit side without directly hitting the worker on the exit side.

[0017]

As described above, in the safety device for a double-ended tenoner according to the present invention, it is assumed that a thin plate material is carried on the track chain and is skipped between the track chain and the presser by the circular saw shaft. Also, since the stopper hits the stopper of the stopper device, it does not directly hit the operator, and when the thin plate passes, even if the first limit switch in front of the stopper device is turned on, the thin plate is skipped. Because the speed is fast, the thin plate material hits the stopper before the stopper of the stopper device descends,
There is an advantage that the skipped plate material does not hit the worker directly.

[Brief description of the drawings]

FIG. 1 is a plan view of a double-ended tenoner according to an embodiment of the present invention.

FIG. 2 is a side view of the double-ended tenoner shown in FIG. 1;

FIG. 3 is a view of the double-ended tenoner of FIG. 1 as viewed from an outlet side.

FIG. 4 is an enlarged view of the stopper device of FIG. 1;

FIG. 5 is a plan view of a conventional double-ended tenoner.

FIG. 6 is a side view of the double-ended tenoner shown in FIG. 4;

FIG. 7 is a view of the double-ended tenoner of FIG. 4 as viewed from an outlet side.

[Explanation of symbols]

 32a, 32b Stopper device 33a, 33b Cylinder 34a, 34b Stopper 35a, 35b First limit switch 36a, 36b Second limit switch

Claims (1)

[Claims] 1. A rotating caterpillar (registered trademark) in which a plate material brought in from an entrance portion with one side abutted against a ruler is mounted on a frame material.
Both sides and upper and lower surfaces of the plate material are conveyed by a chain and a presser moved up and down at the upper part of the caterpillar chain, and are processed by circular saws and cutters mounted on upper and lower sides or side parts of both sides of the caterpillar chain. In the double end tenoner, a stopper having a stopper mounted so as to always protrude by a cylinder is attached to a side surface of the outlet of the frame material, and the stopper acts on the front portion of the stopper by passing the plate material. A first limit switch for lowering the stopper of the stopper portion, and a second limit switch for acting on the rear portion of the stopper portion by passing the plate material to raise the stopper of the stopper portion are mounted. Safety device for double end tenona.