JPS6121809B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a cutting machine for cutting veneer lace or other veneer lace in a plywood factory, or a block of material that can be cut, such as a chemical substance such as styrofoam, or other materials, by gripping and rotating the block, and attaching a cutting tool to the outer periphery of the block. This invention relates to a turning device that peels off a relatively thin piece of material such as a film or a sheet by biting into the rotary race, or a device for carrying out cut thin plate material in a rotary race.

Conventionally, for veneer lace at a synthetic factory, turning work was carried out using a plane stand loaded with a cutting tool that spanned the entire length of the raw material being cut, and the veneer was cut due to the inertia of the rotational force of the raw material during cutting, and the veneer was separated from the raw material being cut. The veneer is ejected from the cutting machine due to its own weight. The manner of cutting and carrying out will be explained with reference to the drawings. Figure 1 is a cross-sectional view of a conventional veneer lace as seen from the side, Figures 2, 3a, and 3b.
The figure shows the conveyance state of the cut veneer.

In the case of conventional veneer lace, when the raw wood to be cut is successively peeled until it becomes a nearly perfect circle, due to the irregularity of the outer peripheral surface of the raw wood, at the beginning of the peeling, the area of each piece, as shown in Figure 2, is Veneers P with different shapes are cut intermittently, and as the cutting progresses, the length of the veneer gradually increases from a short veneer to a long one, and eventually the cut log reaches a nearly perfect circle. Thereafter, it is produced as a continuous band-shaped cut veneer. (The direction of the arrow in each figure represents the direction in which the veneer is transported.) These veneers are manufactured intermittently by cutting the back slope 3a of the planer stand 3 loaded with the cutter 2 as shown in FIG. However, if the slope 3a is steep, as shown in the Pa veneer in Figure 1, the particles will be ejected as they slide down the slope and be placed below the planer stand 3. When descending and loading onto the discharge conveyor 19, the tip of the veneer (part A of the Pa veneer in Figure 2)
The material may be bent and folded up like the Pa veneer in Figure 1, or the tip A may be rolled up and transported into a rolled ball like the Pb veneer in Figure 1. The phenomenon continues to occur.

Such a phenomenon may result in problems such as damage to the veneer, skewing of the manufactured veneer, or meandering conveyance.On the other hand, if the slope of the slope 3a is gentle, the veneer that is being manufactured may be It tends to stay on the slope until it is pushed by the plate, and as a result, the front and rear edges of the veneers produced one after the other overlap, as shown in section c' of the Pc veneer shown in Figure 3b. This caused problems such as difficulty in obtaining the veneer when inserting it into the equipment afterwards.

These groups of cut veneers are cut by cutting each veneer along the imaginary lines in FIGS. 3a and 3b using a cutting device, etc., which is connected to the turning device, and then cuts the front and rear veneers separately. The shaped portion is cut off and the left and right end lengths of each veneer are the same, so-called narrow, parallel veneers are formed into so-called sized veneers, and the veneers are supplied to the next stage, such as a narrow veneer arranging device.

Therefore, it is necessary for loose veneers of various widths with irregular front and rear edges to be transported to each processing device after veneer turning, with appropriate spacing between each veneer and without skew or meandering. There is.

The present invention solves the above problems with an extremely simple device, and includes an inclined conveyor wound along the back inclined surface of a veneer lace planer stand, and a pulley arranged vertically and intricately at the end of the inclined conveyor. an unloading conveyor that starts from a pulley located near the rear end of the bed, passes through a pulley located near the bottom of the raw wood, and winds around the starting point;
It is characterized by being equipped with an electric motor that drives these conveyors.

An embodiment of the present invention will be described in detail below with reference to the drawings.
FIG. 4 is a side view of the veneer lace equipped with the carrying-out device of the present invention, and FIG. 5 is a plan view of the veneer lace. First of all, the fourth
In Fig. 5, 1 is a log to be cut, its left and right end faces are tightly gripped by left and right spindles, and rotated by an electric motor in the direction of the arrow, 2 is a cutting blade for cutting the log 1
It is fixed to a predetermined position on the planer stand 3 over the entire length thereof in parallel to the axis of the raw wood by hydraulic pressure or other means.

Reference numeral 4 denotes a pressure bar, which is attached to a pressure bar body 5 which is normally placed above the planer stand 3, and which runs parallel to the axis of the log over the entire length of the raw wood.
It is fixedly installed in a predetermined position with bolts, etc.
Reference numeral 4' denotes a roller disk disposed in a notch or the like of the pressure bar. The plane stand 3 and the pressure bar body 5 are integrally connected to each other by means of, for example, a feed screw (not shown).
The device is configured to move forward by the required thickness of the cut veneer per rotation, and to rapidly retreat in the direction of the arrow each time the veneer cutting is completed. The above-described apparatus is within the known state of the art in veneer lathes for veneer turning.

Reference numeral 10 denotes a plurality of pulleys arranged near the starting end of the back inclined surface 3a of the planer stand 3, and a plurality of pulleys are arranged parallel to the log as shown in FIG. The outer circumferential surface of the pulley is installed to the extent that it slightly peeks out from the outer surface of the inclined surface 3a (it may be placed slightly below the outer circumferential surface), and a plurality of pulleys can be installed separately or on the same common shaft. It is rotatably installed on the plane stand 3 by being attached to the shaft.

Numeral 11 is a pulley similar to 10, and the same number of pulleys as pulley 10 are arranged near the end of the inclined surface 3a.
Pulleys 11' having the same outer diameter are arranged adjacent to each other between the 11 pulleys, and these plurality of pulleys 11, 11' are mounted on a common shaft parallel to the axis of the raw wood, and are attached to the back of the planer stand. It is pivoted near the end of the inclined surface.

The outer peripheral surfaces of the pulleys 11, 11' are arranged on the inclined surface 3.
It is installed in a state where it is exposed slightly above a, and a conveyance belt such as a flat belt or a string belt is arranged between the pulleys 10 and 11 in a plurality of strips in the cut veneer conveyance direction to form an inclined conveyor 12, Pulley 1 mentioned above
Due to the arrangement height relationship of 0 and 11, it is driven by an electric motor in the direction of the arrow via a carry-out conveyor 19, which will be described later, in a state of being gradually raised above the outer surface of the inclined surface 3a.

Reference numeral 13' denotes a pulley, which is mounted on a bracket 16 behind the pulley 11', as shown in FIG. are used to form an inclined conveyor. i.e. conveyor 1
4 winds the conveying belt around a pulley 11' starting from the end of the conveyor 12 and a pulley 13' disposed in the vicinity of the rear end of the planer stand 3 in a slightly protruding manner.

Each of the inclined conveyors 12 and 14 is configured to have the same inclination as shown in FIG.
A continuous discharge inclined surface is formed by 11' up to the pulley 13'. Note that when the span of the conveyor is long, it is inevitable that the belts wound between the pulleys will stretch and loosen, and in order to avoid this as much as possible, an example is shown in which the inclined conveyor is configured with two sets, front and rear. However, pulley 1
A configuration in which the belts 1 and 11' are omitted and a plurality of strips are wound on the pulleys 10 to 13' is used is often used.

Pulleys 13 have the same outer diameter as the pulley 13' and are arranged alternately on the same shaft. Reference numeral 15 denotes pulleys arranged below the pulley 13 in the same number. Each of the pulleys 13 and 15 is arranged in an appropriately intricate manner in the vertical direction so that a conveyance band such as a belt passing through the pulleys in an S-shape can obtain a contact angle that does not cause slippage. A shaft 13a,
15a, etc., and are integrally supported and supported, and are fixed with bolts or the like near the rear end of the planer stand 3 with the pulley protruding.

Pulleys 17 and 18 are pivotally supported on the bed 22 of the veneer lace, and the front pulley 17 is installed below the raw wood loaded in the veneer lace, and the rear pulley 18 is placed near the rear edge of the bed. At the same time, the planer stand 3 is placed at a height that does not interfere with the forward and backward movements of approaching or moving away from the log. Bearings 20 and 21 are arranged on the bed 22 to pivotally support the pulleys 17 and 18.

Starting from the pulley 13 which is carried by the bracket 16 described above and arranged in a vertically intricate manner, that is, from the terminal end of the inclined conveyor, the pulley 18 forms a downward slope in the veneer delivery direction as shown by the arrow. A conveyor band such as a belt is applied to the wood, and the material advances almost horizontally to a pulley 17 placed below the raw wood, and then reaches a pulley 15 on the lower side supported by the bracket 16, and continues to be arranged in a vertically intricate manner. Pulley 1, which is the starting point
The conveyance belt is wound up in an S-shape to form an unloading conveyor 19.

That is, the conveyor 19 has pulleys 13 to 18.
-17-15, it is endlessly wound around the starting point pulley 13, and is run by an electric motor (not shown) in the veneer transport direction. Incidentally, since the inclined conveyors 12 and 14 are connected to the discharge conveyor 19 by a conveyance band such as a belt, all these conveyors run at the same speed in the veneer discharge direction.

Next, considering workpiece log 1, since the outer peripheral surface of naturally produced logs is not straight with respect to the axis (because there are irregularities on the outer periphery), the left and right end surfaces of the log are sawn at an accurate right angle to the axis. Therefore, it is common sense to saw-cut the veneer to a length that is longer than the required cutting width, that is, with a margin, and then provide it for use in veneer laces, etc.

In this way, when cutting veneer from veneer lace using long raw wood, it is a common practice to determine the width of the veneer to the required width when stripping and cutting the raw wood.
Creasing knives (not shown) are installed near the left and right end faces of the log, respectively, to pierce the log from the outer periphery toward the axis by the thickness of the cut veneer at slightly shorter positions.

Therefore, a machined veneer consists of one wide veneer whose width direction (lengthwise direction of the raw wood to be cut) is approximately equal to the length of the raw wood, and narrower veneers on the left and right sides of the veneer, so-called selvedge veneers. Since two types are manufactured at the same time, the wide veneer part is placed on the inclined conveyor 12, and the selvedge veneer part is placed on the sloped surface 3 of the back of the plane stand on the left and right outside of the conveyor 12.
It is desirable that the veneers be discharged by falling directly onto the surface 3a. Therefore, by providing an appropriate height difference between the conveyor 12 and the inclined surface 3a, it is possible to prevent the above two types of veneers from being mixed in and discharged, and to separate product veneers and waste veneers. This means that the discrimination can be easily and automatically selected.

From the above, the inclined conveyors 12, 14 and the carry-out conveyor 19 have a width (slightly narrower than the total length of the log) of the veneer produced by turning the log, as shown in the plan view of FIG. A plurality of windings are arranged closer to the inner side than the other side.

To explain the embodiment of the present invention with the above configuration, first, a veneer cut from a log to be cut 1 is dropped near the starting end of the slope 3a of the planer stand 3 due to the inertia of the rotation force of the log, and then continues on the slope. By means of an inclined conveyor that gradually floats up from the inclined surface along 3a and is wound and driven in the unloading direction, the veneer directly slides on the inclined surface at approximately the same cutting speed (usually 100 m/min). It is transported to the lower side of the slope while being supported by the conveyor belt to avoid rubbing as much as possible. Eventually the veneer will be attached to pulley 1.
After reaching points 3 and 13', the paper is transferred to the discharge conveyor 19 onto the slope formed between the pulleys 13 and 18, and is transported out of the machine.

The carry-out conveyor 19 is stretched across pulleys 17 and 18 via pulleys 13 and 15, and pulley 1
3 and 15 are fixed to the planer stand 3 by the bracket 16, and as the cutting of the raw wood 1 to be cut progresses, they move together toward the raw wood, so that the inclined surface forming the veneer conveying surface of the unloading conveyor 19 changes slightly. Although the machine is driven at the veneer cutting speed, an increase in the degree of inclination that substantially accelerates the conveyed material over the above speed will cause the conveyed veneer to skew or curl, which is undesirable. Pulley 1 in forward and backward movement
Since the closer 3 and 18 are, the steeper the slope becomes, it is necessary to take care in installing the veneer in a manner that does not give an accelerating effect to the veneer to be carried out.

In addition, in FIG. 4, the discharge conveyor 19 of the present invention is
A conventional example in which the conveyor belt is replaced with a tensioning pulley 25 and a weight 26 is shown in phantom lines instead. In this case, it is obvious that it is disadvantageous because it is necessary to provide a space for raising and lowering this part in the bed 22 and to cut a pit in the foundation concrete for when the weight 26 is lowered.

As detailed above, according to this device, when lathing a thin plate from a workpiece material using a rotary race, obstacles such as oblique conveyance and overlapping conveyance of veneers, which frequently occur in the case of intermittent conveyance of veneers at the beginning of turning, can be avoided. In addition to eliminating this problem, the contamination of the edge waste veneer separated by a scribing knife or the like for determining the product width is also prevented, making it possible to carry out the lathe thin plate material smoothly and further improving work efficiency.In addition, the present invention has been mainly described in detail with respect to veneer lace cut from a single plate, but it is of course also effective when cutting thin plates of various work materials other than raw wood.

[Brief explanation of the drawing]

FIG. 1 is a sectional view from the side of a thin plate delivery device in a conventional veneer lace device. Figure 2 is a plan view of a veneer cut from veneer lace. 3rd a
Figure 3b is a view of the veneer being cut and carried out. FIG. 4 is a sectional view from the side of the device of the present invention. Figure 5 shows
FIG. 2 is a plan view of the device of the present invention. 1... Log to be cut, 2... Cutting tool, 3... Planer stand, 4... Pressure bar, 5... Pressure bar body, 10, 11, 11', 13, 13',
15, 17, 18... Pulley, 12, 14...
Inclined conveyor, 19... Carrying out conveyor, 20,2
1...Bearing, 22...Bed.

Claims (1)

[Claims] 1 In a rotary race for thin plate turning, there is an inclined conveyor consisting of multiple conveyor belts wound along the sloped back surface of the planer bed, and a pulley installed in a complicated manner at the rear end of the planer bed to the rear edge of the bed. A carry-out conveyor constituted by an inclined surface between pulleys arranged nearby, and a conveyance belt driven to make a plurality of windings over both pulleys and a pulley arranged on the bed, an inclined conveyor, and a carry-out conveyor. A rotary race thin plate unloading device characterized by being equipped with an electric motor that drives the rotary race.