JPH0357442Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a semi-finished plywood product made by gluing, stacking and heat pressing an odd number of veneers in the plywood manufacturing process. For example, when using a cutting device such as a double sizer to cut into 3 shaku x 6 shaku dimensions, the width cutting in the 3 shaku direction (referred to as vertical cutting) is followed by the length cutting in the 6 shaku direction (referred to as cross cutting). This invention relates to a feeding device that transports the product while regulating vertical and horizontal perpendicularity.

Conventional plywood cutting mainly uses a saw cutting device, and the feeding mechanism for the vertical and horizontal cutting devices is the first one.
1 and 2 are frequently used.

FIG. 1 is a plan view showing a vertical and horizontal plywood transport mechanism, and FIG. 2 is a partial side view of a transport member that directly contacts and transports plywood.

In FIG. 1, a plywood semi-finished product P is cut into three width dimensions by a vertical cutter (not shown) and is transported from the left to the right in the figure. The conveying device 1 is mainly composed of a conveying belt 2 that is driven to wind a plurality of strips between two shafts. conveyance member 10
are attached to each.

A cutting device 3 for cross-cutting is installed at the tip of the conveying device 1.
The cutting device 0 is arranged is composed of a plurality of conveying rollers 32 that sandwich the plywood from above and below and transport it in the direction of arrow A, and left and right cutting saws 31 arranged between the rollers. . Therefore, after the vertically cut plywood P is transferred from the left to the right in the figure, the transfer direction is changed by 90 degrees by the conveying member attached to the conveying belt 2 of the conveying device, and the plywood P is transferred to the cutting device 30 in the direction indicated by the arrow A. guided in the direction, further held by the rollers of the cutting device,
While being transported, it is sawed and trimmed to a predetermined size.

The conveying member 10 used in these conventional devices will be explained with reference to FIG. 2. The conveying belt 2 wound between two shafts usually employs two roller chains, and the left and right roller chains have the same number of links. and is intermittently driven in the direction of arrow A by an electric motor.

Reference numeral 3 denotes an attachment, which has a flat upper surface and a holding portion 5' for an adjusting bolt 5 protruding from one side. It is integrally connected to the chain at multiple locations by chain connecting pins.

4 is a pushing member having a cross section like angle iron, and the flat bottom surface in the horizontal state is attached to the attachment 3.
While slidingly contacting the upper surface of the plywood P, the vertical surface moves in contact with the edge of the plywood P, pushing the plywood in the direction of arrow A. Further, the rear edge of the bottom surface of the pushing member is in contact with the tip of the adjusting bolt 5, and its position can be moved back and forth in the direction of arrow A by adjusting the movement of the bolt in the direction of arrow B.

That is, the pushing members 4 of the left and right sets of conveying members 10, which are attached to the two conveyor belts 2 shown in FIG.
By adjusting the forward and backward movement of each side, the accuracy of cutting the plywood P at right angles is achieved.

6 is a fixing bolt that tightly fixes the pushing member 4 to the attachment 3.

In the conventional device with the above configuration, due to the high frequency intermittent driving of the conveying belt 2, the pushing member 4 momentarily collides with the plywood P each time, and both the attachment 3 and the pushing member 4 are placed on a flat surface. This caused a defect in that the pushing member 4 would shift as soon as the adjusting bolt 5 or fixing bolt 6 became slightly loosened due to vibration or the like. Further, fine adjustment of the left and right sides using the adjuster bolt 5 was time consuming and inefficient due to readjustment.

The present invention eliminates the above-mentioned defects, and includes a conveyor belt, a plurality of attachments integrally attached to the conveyor belt and having meshing grooves formed on the upper surface, and a plurality of attachments that mesh with the attachments in the direction of travel of the conveyor belt. A meshing groove formed by a plurality of serration grooves or the like at a predetermined angle is carved into the adjustment base, and the adjustment base has an angle-shaped steel cross section, and a wedge-shaped adjustment member adjusts the meshing position of the attachment and the adjustment base. It is characterized in that it is made adjustable so that the relative positions of the conveyance belt and the pushing member that transports the plywood semi-finished product can be adjusted.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 is a plan view of the conveying member, and FIG. 4 is a side view.

Reference numeral 2 denotes a conveyance belt composed of a chain or the like, which is the same as the conventional example shown in FIG. Reference numeral 20 denotes a conveyance member, which is normally attached to the same positions on the left and right sides of the two conveyor belts 2 as shown in FIG.

Reference numeral 23 denotes an attachment whose upper surface is normally formed parallel to the upper surface of the conveyor belt 2 and is integrally attached to the conveyor belt by a connecting pin or the like.

A toothing groove 24G is carved on the top surface of the attachment. An example of a toothing groove is a relatively fine serration groove with a pitch of about 1 mm and a triangular cross section in the direction of arrow A in which the conveyor belt advances. vs. 60~
Multiple lines are engraved on the entire surface at an angle of about 80 degrees.

Reference numeral 24H is a mounting hole, and reference numeral 26 is a fixing bolt for tightly fixing the adjusting base 24 to the attachment 23.

Reference numeral 27 designates an adjustment member, which has a tip angle of 10 to 20 degrees and is formed into a wedge shape with one side slidingly in contact with the oblique side of the adjuster base as shown in FIG. On the other hand, a T-groove is bored near the rear end into which the tip of an adjusting bolt 29 (described later) is loosely fitted. Further, the other side surface formed parallel to the direction of arrow A is the attachment 23.
It is in sliding contact with a guide 27' that is locked on the side surface, and is sandwiched between the adjuster base and the guide.

Reference numeral 29 is an adjustment bolt, which is attached to a holding member 29' that is fixed to the rear end edge of the attachment in an upright state.
It is rotatably supported by a screw shaft, and its tip is formed into a T-shape that loosely fits into a T-groove at the rear end of the adjustment member 27. Therefore, the rotation of the adjustment bolt causes the bolt to move in the axial direction, and the adjustment member moves forward and backward in the direction of arrow A through the adjustment member T groove.

When the adjusting member 27 moves forward in the direction of arrow C, one side of the adjusting member (the upper side shown in FIG. 3) is regulated by the guide 27', while the other side has a wedge-shaped slope and adjusts. Since the base 24 moves in the direction A while slidingly contacting the oblique side part, the base is pushed in the direction of arrow D along the angle of the engagement groove 24G on the lower surface, and at the same time moves forward little by little in the direction of arrow A. It is.

Reference numeral 28 denotes a flat plate-like pushing member that directly contacts the semi-finished plywood product and pushes the product into the cutting device, and is fixedly arranged on the vertical surface of the adjuster base.

To explain the embodiment of the present invention with the above configuration, firstly, unlike the conventional example, multiple sets of attachments 23 and conveyance belts 2 are disposed at the same position in the longitudinal direction (direction of arrow A) on the left and right sides. It's the same.

Next, the position of the adjuster base 24 with respect to the attachment 23 is adjusted by moving the meshing position of the toothing groove 24G back and forth by appropriate pitches, and the squareness error in cutting the plywood is adjusted to within about 1 mm. Continue to tighten the adjusting member 27 with the adjuster bolt 29.
Fine adjustments are made by moving back and forth.

These adjustments can be made, for example, by adjusting the toothing grooves 2 with a pitch of 1 mm.
At 4G, if you shift the engagement by one thread forward or backward, you can adjust it in 1mm increments, and any further fine adjustments will be made using the adjustment bolt. Note that these adjustments will be made while test cutting the plywood one by one.

To show an example of the above adjustment, the thread pitch of the adjuster bolt 29 is 2 mm, the adjustment member tip angle α is 15.83°, and the toothing groove 2 of the adjuster base 24 is 2 mm.
When the angle β between 4G and the pushing member 28 is set to 10°, when the adjusting bolt is rotated one turn to the right (in the case of a right-handed screw), the adjusting member 27 moves as indicated by the arrow C.
The adjusting base slides in the toothing groove 24G and simultaneously moves 0.567 mm in the direction of arrow D and 0.1 mm in the direction of arrow A.

In other words, when the adjuster bolt 29 rotates once, the adjuster base 24 moves 0.1mm in the direction of arrow A.
They are moved and fine-tuned.

Further, by marking the adjustment member 27 or guide 27' with appropriate pitch scales and marking the actual amount of movement in the direction of the adjustment base A, the amount of movement of the adjustment base 24 can be confirmed at a glance.

The above adjustments made it easy to cut plywood at right angles with high precision. Furthermore, the pushing part that directly hits the edge of the plywood with impact causes frequent collisions, resulting in damage and wear, but according to the present invention, it is sufficient to simply replace the pushing member 28. It is. The above advantages are listed as follows.

1. The plywood conveying member for right-angle cutting is divided into rough adjustment and fine adjustment, allowing adjustments to be made in a short time.

2. Since meshing portions such as serration grooves are provided, obstacles such as loosening of the conveying member due to vibration etc. are eliminated.

3 Wear and damage of the pushing part that collides with the plywood,
It is economical as only parts need to be replaced.

As described above, according to the present invention, it has become possible to cut plywood with high precision.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the conveyance mechanism of a plywood cutting device, FIG. 2 is a side view of a conventional conveyance member, FIG. 3 is a plan view of a conveyance member according to an embodiment of the present invention, and FIG. 4 is a side view. It is a diagram. 1... Conveyance device, 2... Conveyance belt, 3, 23...
Attachment, 4, 28... Pushing member, 6, 2
6... Fixing bolt, 10, 20... Conveying member, 2
4... Adjustment base, 24G... Fitting groove, 2
5... Connection bolt, 27... Adjustment member, 27'...
...Guide, 29...Adjustment bolt, 29'...
...Holding part, 30... Cutting device, 31... Cutting saw,
32... Conveyance roller, P... Plywood semi-finished product.

Claims (1)

[Claims for Utility Model Registration] 1. An attachment that is provided with a plurality of conveyor belts that are wound and driven between two shafts, has a plurality of meshing grooves carved on the upper surface, and is attached to the conveyor belt; The adjusting base has an angle-shaped steel cross section with a groove carved on the lower surface that engages with the engagement groove of the attachment, a wedge-shaped adjusting member that slides into one side of the adjusting base so that it can move forward and backward, and the adjusting member. A conveying member consisting of a locked adjusting bolt and a flat pushing member fixed to the front surface of the adjusting base is anchored at the same position in the traveling direction of each of the plurality of conveying belts. A plywood feeding device in a cutting device characterized by: 2 Utility model registration claim 1 characterized in that a plurality of conveyor members are attached to each conveyor belt
A plywood feeding device in the cutting device described in 2. 3 The meshing grooves carved on the attachment and adjuster base are 60 mm
A plywood feeding device in a cutting device according to claim 1 or 2 of the utility model registration claim, characterized in that a plurality of strips are formed at an angle of ~80°. 4. The cutting according to any one of claims 1 to 3 of the claims for utility model registration, characterized in that the mating grooves carved in the attachment and adjuster base are grooves with a triangular cross section. Plywood feeding device in the equipment. 5. The plywood feeding device in the cutting device according to any one of claims 1 to 4, wherein the adjustment member is formed with a tip angle of 10 to 20 degrees.