JPS5846426B2 - Veneer veneer deposition equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to an apparatus for depositing veneer veneers.

Conventionally, in the case of plywood veneers, for example, a deposition device for so-called fixed length veneers of 3 x 6 dimensions and 3 x 3 % fixed length veneers has been used to separate fixed length veneers and % fixed length veneers, respectively. When loading the veneers into a depositing device, or loading them into the same depositing device, be sure to introduce two or an even number of regular-sized veneers into the depositing device to form a so-called set of two veneers. A method such as stacking fixed-length veneers as one fixed-length veneer was taken, so if an even number of fixed-length veneers were conveyed in succession, it would be fine, but if an odd number of veneers were conveyed, it would be fine. When the next veneer of fixed length is being conveyed, a device such as installing another recording conveyor at a position that does not affect the conveyance route (an example is a two-stage conveyor with material placed above and below) Is required.

The present invention eliminates the need for the above-mentioned work processes such as the order and combination of veneers of fixed length, and allows fixed length veneers and fixed length veneers to be
The object is to make it possible to deposit any combination of materials, and also to deposit them in an orderly manner.

The present invention will be described in detail with reference to drawings of embodiments. In FIG. 1, reference numeral 1 denotes an inlet conveyor, which is usually constituted by a plurality of belts or chains, and is rotated in the direction of the arrow by, for example, an electric motor. has been done.

Reference numeral 2 denotes a standby conveyor of veneer veneer P, which is arranged parallel to the plurality of belts or chains of the carrying-in conveyor 1, or a plurality of veneer veneers P as appropriate between chains, and is composed of, for example, a pipe. 6, so that it is easier to transport
The veneer introduction part is appropriately inclined downward.

Then, as shown in the figure, a fluid cylinder 1 such as air, etc.
The standby conveyor 2 lifts the veneer veneer to a position above the top surface of the belt of the conveyor 1 and lifts the veneer. is configured to break contact with the carry-in belt.

3 is a plywood veneer conveyor, which usually has multiple belts,
Alternatively, the contact surface with the conveying plywood veneer surface has, for example, fine protrusions for the purpose of increasing the frictional force as appropriate, and the intermittent operation mechanism such as a clutch brake etc. It is equipped so that it can be operated intermittently in the direction of the arrow.

Reference numeral 4 denotes a veneer guide that cooperates with the conveyor 3 to assist in conveying the veneer veneer, and as shown in FIG. - A large number of rollers are arranged in a row so that the veneer slides in the direction of the arrow on the rollers and can be easily transported.

Furthermore, both the front and rear ends are bent and the upper end is attached to the frame, etc. as a fulcrum shaft 1.
2, and although not shown, the fulcrum shaft 12 is the center of rotation by, for example, a fluid cylinder such as air, etc.
The roller is rotated outward, and the veneer veneer conveyed onto the roller is dropped and deposited on a table lifter 13 installed below the roller.

5, 6, 7, 8, 9, 10゜11 is a limit switch, for example, that sends various signals such as incoming detection of conveyed plywood veneer, fixed length detection, raising and lowering of standby conveyor, or falling signal to depositing device. , microswitch, phototube, etc., which emit electrical signals, and are placed at suitable intervals in the transport direction of the plywood veneer, and at a height that can be detected in the transport path of the plywood veneer being carried in, for example, in a straight line. It is located.

If Ll is the standard length of the veneer veneer, for example, 6 shaku, then each of the detectors 8, 9, and 11 has the position of the detector 6 as a reference (
0 point), and the relative dimensions are L2<%L1<L3<L4<Ll.

Further, the detector 5 is arranged near the terminal end of the carry-in conveyor 1 and slightly in front of the transport conveyor 3, and the detector 7 is located on the vertical line of the starting end of the veneer stacking position of the table lifter 13 shown in FIG. The detector 10 is disposed in the veneer transport path at the top of the table lifter 13, and the detector 10 is located in the veneer transport path on the vertical line at the end of the veneer stacking position of the table lifter 13.

Based on the above related positions and equipment, the mode of action is shown in Figure 1.
To explain based on FIGS. 3, 8, and 4, when carrying in a fixed length veneer, the standby conveyor 2 is first placed in the position shown in FIG. The veneer veneer P is placed on the carry-in conveyor 1 and conveyed in the direction of the arrow.
When the conveyor 3 reaches the position of the detector 6, a signal from the detector 6 causes the stopped conveyor 3 to be driven, for example, by activating a clutch brake or the like.

As a result, the veneer veneer is given a propulsion force by the frictional force of the fine protrusions provided on the veneer veneer contact surface of the conveyor 3, and is conveyed by sliding on the rollers of the veneer guide 4 in the direction of the arrow. be done.

Subsequently, in the state shown in FIG. 4A, the leading edge of the veneer veneer passes through the detectors 7, 8, and 9 one after another, and since the detector 11 is disposed at a position where L4<L, After the leading edge of the veneer reaches the detector 11 as shown in FIG. will be done.

In other words, after the veneer veneer carried in straddles the detectors 6 and 9.11 and a detection signal is transmitted, the moment it leaves the detector 6, it is determined that the veneer is a standard length veneer.

When the conveyance is further continued and the rear end edge of the veneer sheet has come off the detector 7, that is, in the state shown in FIG. The fluid cylinder of the plate guide 4 operates, and the fulcrum shaft 1
2 as a fulcrum, the veneer guide 4 rotates downward as shown by the chain line on the left side of FIG. the veneer guide immediately returns to its original state,
This is in preparation for the next plywood delivery.

Next, the case of carrying in a veneer of a fixed length of 3ALl will be explained based on FIGS. 1, 3, 8, and 6.

Similar to the above-mentioned fixed length veneer, it is carried in by the carrying conveyor 1,
The conveyor 3 is driven by the detection by the detector 6, and continues to be conveyed by the veneer guide 4.

Then, at a point in time (a) in FIG. 6, just before passing through the detector 1 and further passing through the detector 8 and reaching the position of the detector 9, the detectors 6 and 8.9 are in the relationship L2<%Ll<L3. Since the rear end edge of the %L1 veneer comes off from the detector 6 before reaching the detector 9, it can be determined that the veneer is a regular length veneer due to the condition shown in Figure 6. A judgment is made.

Here, the % standard-length veneer that was previously delivered and piled up is the standard-length veneer (
For example, the fact that the deposit was deposited on the first half or the second half of the stacking range (for example, a veneer with a length of 6 shaku) is stored in the front and rear memory circuits as in the circuit shown in Fig. 8, and the signal is used to For example, if the % standard size veneers of the previous stack were stacked on the front side in the veneer traveling direction as shown by the imaginary line in Figure 6, the signal from the previous reference stack detector 7 would be turned off. , the conveyance of the veneer veneer continues, the post-reference accumulation detector 10 is activated, and immediately after reaching the position of the % standard size veneer judgment post-detector 10, the accumulation signal is transmitted and the conveyor 3 is stopped. At the same time, the veneer guide 4 opens downward, and the veneers are deposited on the far side in the advancing direction of FIG. 6C.

If multiple standard length veneers are brought in after this, those standard length veneers are stacked in a predetermined position, and if % standard length veneers are subsequently brought in, the % standard length veneers as described above are A loading operation is performed.

In this way, when a fixed-length veneer is carried in, the front accumulation detector 7 is activated, and when a %-sized veneer is carried in, the front and rear reference accumulation detectors 7 and 10 are activated alternately. However, in any case, fixed length veneers and percentage fixed length veneers are mixed and stacked in an orderly manner by sorting them back and forth.

Next, in front of the stacking device, when cut to length and percentage cut to length are continuously cut with high efficiency and transported to the stacking device, the veneer spacing is narrow and sufficient stacking time may not be obtained. To explain this with reference to FIGS. 1 and 7, if an incoming veneer from the incoming conveyor 1 is already on the detector 5 at the time when the stacking signals from the detectors 7 and 10 are output, the conveyor 3 stops and the veneer is removed. Until the guide 4 opens downward and the depositing operation is completed until it returns to its original state, the fluid cylinders 14, 14, etc. installed on the standby conveyor 2 operate.
The veneer veneer on the carry-in conveyor 1 is lifted above the belt or chain of the conveyor 1 as shown in Fig. 7A, and the subsequent conveyance is temporarily interrupted, and after the stacking is completed, the opening in Fig. 7 is opened as shown in the figure. The device is designed so that it descends and continues conveying again.

Next, when transporting a fixed-length veneer, assuming a dimension t from the tip of the veneer, under the condition that the dimension is L3<t<Ll, that is, in the part after the L3 dimension from the tip of the fixed-length veneer, the cutter is cut. The case where this occurs will be explained in detail based on FIGS. 1 and 5.As the veneer is transported, the leading edge of the veneer passes through detectors 6, 7.8, and then detector 9. reaching the 5th
In the state shown in Figure A, it is once determined to be a regular length veneer.

As the veneer is further conveyed, the trailing edge (cut portion) of the veneer passes through the detector 6 and is about to proceed to the stacking operation, but at this time, the tip of the veneer reaches the detector 11. Because the veneer was not checked, it was not confirmed that it was a regular length veneer, and at that moment (the moment the trailing edge came off the detector 6), the conveyor 3 was temporarily stopped at the exit in Figure 5. , the next short veneer (L, - length veneer) P″' is to be waited for.

The short veneer P'' is subsequently conveyed, and when it reaches the detector 6, the conveyor 3 is started again, and the tip of the short veneer P'' is placed on the rear edge (cut portion) of the veneer P' mentioned above. The edges are butted together as shown in Fig. 5C, and the veneer P is conveyed at the same time.
When the leading edge of the veneer P'' reaches the detector 11, it is determined to be a regular length veneer in the state shown in FIG. When the material is removed from the container 7, a depositing signal is sent, the conveyor 3 stops, and the material is immediately deposited at the state position shown in FIG.

Next, if a short veneer P〃 is left behind due to a cut of the board for some reason, in other words, the short veneer P'' after the cut of the board is left behind.
The conveyor 3 stops when it comes off the detector 6 before it is determined whether the length is the standard length veneer length or the % standard length veneer length, but the veneer guide 4 does not operate. The short veneer P"
is kept stationary and waiting on the veneer guide 4, and then
If the length of the veneer veneer brought in subsequently is a fixed length veneer or a % fixed length veneer, and if it is deposited on the later standard, the fixed length veneer or the % fixed length veneer The leading edge of the short veneer approaches or comes into contact with the rear edge of the short veneer that is already waiting in the veneer guide 4, and the constant length veneer or % standard length veneer is placed at the position of the detector 6. The conveyor 3 is driven when the leading edge of the veneer reaches the position of the detector 10, the conveyor 3 stops, and the veneer guide 4 moves downward. By opening the opening, the fixed length veneer or the fixed length veneer is deposited at a predetermined position, and the short cut veneer P" that was previously waiting on the veneer guide 4 is
It climbs over the position of the detector 10 and falls to a position outside the table lifter 13, and is never loaded onto the predetermined stacking position of the table lifter 13.

In addition, if the % standard length veneer is carried in following the cut short veneer and is deposited on the front standard, the table lifter 13.

As described above, according to the present invention, in front of the stacking device, standard-sized veneers and veneers of a certain size are randomly brought in without adjusting the order and combination of the veneers brought in.
It makes it possible to mix and match standard length veneers and load them efficiently and orderly in the same stacking area, contributing to this industry.
There is something very dog-like.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is a partial front view thereof, Fig. 3 is a block diagram thereof, and Fig. 4 is a mode in which regular length veneers are stacked according to the present invention. FIG. 5 is an explanatory diagram showing the relationship between each detector and each plate, FIG. An explanatory diagram showing the relationship between each detector and each plate in the same manner in which % standard-sized veneers are deposited, and FIG. FIG. 8 is an explanatory diagram showing the relationship between each detector and each plate, and FIG. 8 is a block diagram showing details of the front and rear deposition storage circuits within the virtual line of FIG. 3. 1... Loading conveyor, 2... Standby conveyor, 3... Transfer conveyor, 4... Single plate guide, 5... Standby conveyor. detector, 6.
...Detector for driving conveyor, I...
- Front reference accumulation detector, 8...% fixed length length detector, 9... fixed length length detector, 10... rear reference accumulation detector, 11 ...... Detector for broken veneer, 12... Fulcrum shaft, 13... Table lifter, 14... Air cylinder of standby conveyor 2, P. ...Carry-in plywood veneer, P'...
Cut veneer veneer, P"P"'...Short veneer cut.

Claims (1)

[Claims] 1. The rear end of the veneer veneer carrying-in conveyor 1 is provided so as to be entwined below the starting end of the conveyor 3, and the conveyor 3
A veneer guide 4 and a table lifter 13 are provided below the veneer guide 4 and a table lifter 13. A veneer guide 4 and a table lifter 13 are provided on the veneer transport path of the transport conveyor 3. Detector 1 and % standard length detector 8
, a standard length detector 9, a rear reference accumulation detector 10 located at the rear end of the table lifter 13, and a cut veneer detector 11 are installed, respectively, and the veneer P is transferred to the conveyor. 1
If the veneer is a fixed length veneer, it is determined that the veneer is a fixed length veneer based on the signal from the detector 6.9, and the veneer is determined based on the signal from the detector 7. The veneer guide 4 is operated to drop the veneer P onto the table lifter 13, and in the case of % fixed length veneer, the front and back accumulation memory stores the signals of the detectors 6 and 8 and the front and rear positions of the table lifter 13. The detector 6 is operated so that the veneer guide 4 can be actuated to drop the veneer P onto the table lifter 13 by a signal from the detector 7 or the detector 10 based on an instruction from the circuit.
, 7, 8, 9, 11, and 10 are sequentially arranged in a row along the conveyance direction of the conveyor 3 at a position that satisfies the condition A below. 2, and the standby conveyor 2 is equipped with a fluid cylinder 14 so that the conveyance of subsequent veneers is temporarily interrupted.
A veneer veneer deposition device characterized by being capable of being selectively raised by, etc. A L2 < % Ll < L3 < L4 <
L length Ll: Standard length of veneer veneer L4: Distance from detector 6 to detector 11 L3: Distance from detector 6 to detector 9 L2: Distance from detector 6 to detector 8