JPH03193301A - Mechanically assembling device of veneer - Google Patents

Abstract

PURPOSE:To enable to carry out precise, smooth, stable and highly efficient mechanical assembling by a method wherein the carrying of core veneer in fiber direction is performed by pressingly feeding it with a hooked conveyer and the carrying of rear veneer, longitudinal center veneer and front veneer in the direction normal to the fiber of said veneers is performed by holding them with an upward sloping suction conveyer, a downward sloping suction conveyer or a sticking conveyer. CONSTITUTION:Core veneer C, the position of which is corrected, is fed in fiber direction into a sizing machine 1 so as to apply adhesive G on both its front and rear sides and successively conveyed further with prehandling conveyer 4, which is provided on the carrying-out side of the sizing machine. An upward sloping suction conveyer 5 for sticking conveyer 20 is provided below the prehandling conveyer 4 so as to suck or stick obliquely upwards rear veneer B or longitudinal center veneer in the direction normal to the fiber direction of the core veneer for conveying. Hooked conveyer 12 is provided above the prehandling conveyer 4 so as to pressingly feed the core veneer by the prehandling conveyer 4 so as to pressingly feed the core veneer by its rear end. A downward sloping suction conveyer 17 or sticking conveyer 21 is provided above a carrying-out conveyer 15 so as to suck obliquely downwards front veneer A in the direction normal to the fiber direction of the core veneer so as to place the front veneer or the piled up veneers, which are prepared by placing the rear veneer B or longitudinal center veneer D, by means of the carrying-out conveyer 15 during conveying.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a veneer mechanism device that stacks veneers constituting a plywood such as 5-brie in the order in which the plywood is constructed in a plywood manufacturing process.

(Prior art) As a conventional veneer mechanism, the Japanese Patent Publication No. 52-240
There are a veneer bonding apparatus for manufacturing wood plywood disclosed in Japanese Patent Publication No. 96, and an automatic method and apparatus for manufacturing plywood disclosed in Japanese Patent Publication No. 8201/1983.

(Problem to be Solved by the Invention) The former Japanese Patent Publication No. 52-24096 discloses a veneer bonding device for manufacturing wood plywood, in which a pair of upper and lower rotating drums is disposed on the delivery side of a glue spreader. In this method, a veneer coated with adhesive is sandwiched between two veneers that are reversely conveyed by a rotating drum and overlapped at the same time. In the case of this device, since the veneer is reversed using a rotating drum, the needles and pressure rolls that hold the veneer tightly against the drum may cause damage such as cracks or tears to the veneer, or damage the veneer to glued veneers. There were problems such as a speed error caused by the slip of the coating roll between the veneer and the veneer which is reversely conveyed by the rotating drum, making it impossible to accurately overlap the veneer. The latter automatic plywood manufacturing method and apparatus disclosed in Japanese Patent Publication No. 59-8201 has a means for conveying and stacking the middle board on the delivery side of the device onto a structured stacking table, and a means for transporting and stacking the middle board on the structured stacking table, and a top plate and a back plate placed above the structured stacking table for gluing. The conveyor is equipped with multi-stage support conveyors that support the boards and can be freely opened/closed and stopped, and a veneer pressure body that can be raised and lowered to press and drop the top and back boards on each support conveyor above the center of the support conveyor. The stacking of each veneer on the structured stacking table is performed by alternately depositing the middle plate onto the structured stacking table using the stacking means and depositing the top and back plates onto the structured stacking table using the veneer pressure body. Because the structure of the middle plate and the front and back plates requires two steps to deposit on the stacking table, a highly efficient mechanism cannot be expected, and if the pressurized body is dropped rapidly to increase efficiency, the front and back plates will be separated. There were problems such as damage to the board.

(Means for solving the problem) For gluing, in which adhesive is applied while conveying the core veneer, a pre-feeding conveyor for placing and conveying the core veneer is installed on the output side of the machine, and a pre-feeding conveyor is installed above the pre-feeding conveyor. A conveyor with a hook is installed to push the rear end of the core veneer transported by the take-up conveyor, and the back veneer or vertical center veneer is sucked or stuck diagonally upward in a direction perpendicular to the fibers below the front take-up conveyor. An upwardly inclined suction or tattooing conveyor is provided to place and superpose core veneers that are conveyed and pressed by a conveyor with hooks.Following the upwardly inclined suction or tattooing conveyor, an unloading conveyor is provided, and above the unloading conveyor, the front veneer is placed and polymerized. A downward slope in which boards are adsorbed or stuck diagonally downward in a direction perpendicular to the fibers and then stacked on a back veneer or a stacked veneer in which a core veneer is stacked on a vertical center veneer, which is transported by an unloading conveyor. Install a suction or sticking conveyor.

(Function) The core veneer is transported in the direction of the fibers by pushing a conveyor with a hook, and the transport in the direction perpendicular to the fibers of the back veneer, vertical center veneer, and front veneer is carried out by suction or sticking. The stacking of each veneer is carried out reliably and accurately without applying shock to the veneer or subjecting it to harsh transportation, and without causing any speed errors, while maintaining its posture. The stacking of the front veneer onto the board or vertical center veneer is carried out by an upwardly inclined adsorption or sticking conveyor, and the stacking of the front veneer on the polymerized veneer is carried out by a downwardly inclined adsorption or sticking conveyor, so in both cases, the process is smooth and smooth. It is done stably.

(Example) The drawing shows an example of a veneer mechanism for manufacturing 5-brie plywood, and the veneer mechanism for 5-brie plywood will be described below.

The gluing machine 1 applies adhesive G to both the front and back surfaces of the core veneer C, and uses a pair of upper and lower application rolls 1a1 and each application roll 1.
The core veneer C is made up of a doctor roll 1b and a glue tank IC, each of which controls the amount of application by contacting the core veneer C, and a pinch roll 2 whose upper roll can move up and down from the pile Ca, and a stopper 3 which regulates the butt end surface. The posture is corrected, and the fiber is fed into the gluing machine 1 in the direction of the fibers, and adhesive G is applied to both the front and back surfaces.

For gluing, a pre-feeding conveyor 4 consisting of a large number of rotating discs, etc. is installed on the discharge side of the machine 1, and for gluing, the core veneer C coated with adhesive G by the gluing machine 1 is conveyed to the pre-feeding conveyor 4. It is placed and continuously conveyed in the fiber direction. The advance conveyor 4 is provided so as to be able to convey the core veneer C toward a first meeting point P1 that is appropriately set behind it, and its feeding speed is set at the speed of each veneer set on the hooked conveyor, etc., which will be described later. The mating speed is slower than the predetermined mating speed during plate polymerization.

The upwardly inclined suction conveyor 5 is provided below the advance conveyor 4 and close to its discharge end, and includes three sets of rotating wheels 5a,
At least two endless perforated belts 5d are stretched on each of 5b and 5c, and an upwardly inclined conveyance path is formed between the rotating wheels 5a and 5b, and a duct 5e is provided in this upwardly inclined conveyance path. The perforated belt 5d runs in contact with this inclined surface, and the perforated belt 5g has an intake hole 5g provided on the upwardly inclined surface of the suction box 5f. Through the opening 5h attached to 5d,
The structure is such that the back veneer B or the vertical center veneer can be suctioned and conveyed in a direction perpendicular to the fibers in an upwardly inclined conveyance path. The upwardly inclined suction conveyor 5 is intermittently driven to run by an intermittent drive mechanism 5m consisting of a motor, clutch brake, etc. that drives the shaft of a rotary wheel 5b.
During travel, a predetermined metering speed is set, and on the upwardly inclined conveyance path, the back veneer B or the vertical center veneer is moved toward the first meeting point P1 in the conveyance direction of the front pick conveyor 4. It is formed so that it can be sucked and conveyed in the same direction.

The back veneer B and the vertical center veneer are fed to the upwardly inclined suction conveyor 5, for example, by feeding the back veneer B and the vertical center veneer from the pile pile Ba to the pile pile D.
The vertical center veneers of a are sent out in the fiber direction automatically or manually, and roller conveyors 6b, 6d, lifting roller conveyors 7b, 7d, cross conveyor 8, relay conveyor 9, posture correction conveyor 10, relay conveyor 1
1. The lifting roller conveyors 7b, 7d and the cross conveyor 8 are commonly used for changing the direction of this type of veneer in the right angle direction, and the lifting roller conveyors 7b, 7d
are the raised position where veneers are received from each roller conveyor 6b, 6d by operating mechanisms 7b-2, 7d-2 such as hydraulic cylinders that raise and lower the respective machine frames 7b-1, 7d-1, and the conveyance surface of cross conveyor 8. The back veneer B and the vertical center veneer received from each roller conveyor 6b, 6d are transferred onto the cross conveyor 8. Stoppers 7b-3 and 7d-3 provided near the ends of each of the lifting roller conveyors 7b and 7d are used to regulate the positions of the butt ends of the back veneer B and the vertical center veneer.

The back veneer B and the vertical center veneer are delivered from each pile Ba and Da almost simultaneously, and the back veneer B and the vertical center veneer are transferred to the cross conveyor 8 almost simultaneously, and the cross The back veneer B and the vertical center veneer are conveyed by the conveyor 8 in a direction perpendicular to the fibers, the back veneer B is conveyed via the relay conveyor 9 to the posture correction conveyor 10, and the vertical center veneer D is conveyed to the relay conveyor. Transferred to 9. The posture correction conveyor 10 is formed, for example, by a pair of upper and lower endless belts on the left and right sides, and is configured such that the left and right endless belts can be driven simultaneously and individually intermittently, and two conveyors are installed on the left and right of the running path on a line perpendicular to the conveyance direction. When the veneer detector detects the front edge of the veneer, the endless band on the veneer detector side is stopped so that the front edge of the veneer is almost perpendicular to the conveying direction. It is something to be corrected.

The back veneer B or the vertical center veneer whose posture has been corrected is sent to the upwardly inclined suction conveyor 5 via the relay conveyor 11.

The swinging conveyor 11a attached to the relay conveyor 11 smoothly transfers the veneer from the relay conveyor 11 to the upwardly inclined suction conveyor 5. In addition, it is also possible to correct the posture of the back veneer B and the vertical center veneer by using the upwardly inclined adsorption conveyor 5. In this case, as in the embodiment, two perforated belts 5d are used, and the posture correction conveyor Similarly to No. 10, the left and right perforated belts 5d are configured to be able to be driven simultaneously and separately intermittently, and two left and right veneer detectors are provided to detect the back veneer B in the same way.
Alternatively, the attitude of the vertically centered veneer is corrected so that the front edge is substantially perpendicular to the conveyance direction.

The hooked conveyor 12 is provided above the front-loading conveyor 4, and includes a rotating wheel 12a at the front near the front end of the front-loading conveyor 4 and a rear rotary wheel 12a at the top near the rear end of the upwardly inclined suction conveyor 5. Two endless bands 12C are stretched around the rotating wheel 12b,
Two sets of hooks 12d and 12e are attached to each endless belt 12C so as to be in the same phase in a direction perpendicular to the conveyance direction, and an intermittent drive mechanism 12m consisting of a motor, clutch brake, etc. that drives a rear rotary wheel 12b is used. The core veneer C is driven at a predetermined mating speed, which is the same speed as the upwardly inclined suction conveyor 5, and the core veneer C is pushed at the rear end in the same direction as the conveyance direction of the pre-picking conveyor 4 by the hook 12d or the hook 12e. It is configured to do so.

The core veneer C is superimposed on the back veneer B or the vertical center veneer at the meeting point P1. a veneer detector 13 for detecting the front edge of the central veneer;
It is equipped with a veneer detector 14 that detects the front edge of the core veneer C pushed on the pre-picking conveyor 4 by the hooked conveyor 12, and the intermittent drive mechanism 5 is activated by the detection signal of the veneer detector 13.
m is activated to stop the back veneer B or the vertical center veneer at a predetermined position on the upwardly inclined conveyance path, and when the veneer detector 14 detects the front edge of the core veneer C, the intermittent alarm is activated by the signal. This is done by activating the drive mechanism 5m to start the upwardly inclined suction conveyor 5. In this case, since the running of the back veneer B or the vertical center veneer is carried out by suction and conveyance, and the running of the core veneer C is carried out by the pushing of the hook, both are carried out reliably and stably, and the upwardly inclined suction conveyor 5 and Since the conveyor 12 with hooks runs at the same speed, by setting the positions of the veneer detectors 13 and 14, it is possible to accurately detect the back veneer B or the vertical center veneer and the core veneer C at the first meeting point P1. Meetings and overlaps take place.

The core veneer C is pushed by the hooked conveyor 12 as follows:
A veneer detector is provided at an appropriate position on the pre-picking conveyor 4, and the intermittent drive mechanism 12m is actuated by the detection signal of the core veneer C to start the hooked conveyor 12, and the hook 12d is activated.
Alternatively, the rear end of the core veneer C is pushed by the hook 12e.

At the first meeting point P1, the superimposed veneer C is stacked on the back veneer B or the vertical center veneer at a predetermined metering speed provided following the upwardly inclined suction conveyor 5. It is transferred to the carry-out conveyor 15 which runs on the road.

When constructing 5-brie plywood, the core veneer C is first superimposed on the back veneer B by the upwardly inclined suction conveyor 5 and the hooked conveyor 12, and this superposed veneer is transferred to the conveyor 15.
The veneer is guided by a reciprocating bar 16 provided near the end of the veneer, and is deposited on the pile Ea of the polymerized veneer. This deposition is carried out manually or by suitable mechanical means. Next, the core veneer C is superimposed on the vertical center veneer by the upwardly inclined suction conveyor 5 and the hook-equipped conveyor 12, and the core veneer C is superimposed on the vertical center veneer, and an appropriately set veneer C is placed on top of the stacked veneer near the end of the carry-out conveyor 15. 2 meeting point P
In step 2, the front veneer A is
The three veneers are stacked on top of the back veneer B and core veneer C to form a 5-brie plywood. In addition, when configuring 3-brie plywood,
It is constructed by feeding only the back veneer B by an upwardly inclined suction conveyor 5, and superimposing the front veneer A on top of the polymerized veneer in which the core veneer C is superimposed on the back veneer B by means of a downwardly inclined suction conveyor. be done.

The downwardly inclined suction conveyor 17 is provided above the carry-out conveyor 15, and has three sets of rotating wheels 17a, 17b, 17c.
At least two endless perforated belts 17d are stretched between each of the rotary wheels 17a and 17b, and a downwardly inclined conveyance path is formed between the rotating wheels 17a and 17b. It is equipped with a suction box 17f connected to an exhaust fan (not shown), and the perforated belt 17d is connected to the suction box 1.
The table veneer A is conveyed into fibers in a downwardly inclined conveyance path through an air intake hole 17g provided on the downwardly inclined surface of the suction box 17f and an opening 17h attached to the perforated belt 17d. It is configured so that it can be suctioned and conveyed in orthogonal directions. And downward inclined suction conveyor 1
7 is intermittently driven to run by an intermittent drive mechanism 17m consisting of a motor, clutch brake, etc. that drives the shaft of a rotary wheel 17a, and is set at a predetermined metering speed while running, and also moves the front veneer on a downwardly inclined conveyance path. A is formed so that it can be suctioned and conveyed toward the second meeting point P2.

The front veneer A is fed to the downwardly inclined suction conveyor 17 by a roller conveyor 6a1 having the same configuration as that for the back veneer B, for example.
Elevating roller conveyor 7 a s Equipped with an operating mechanism 7 a - 2 for elevating and lowering the machine frame 7 a - 1 , a stopper 7 a - 3 , and a cross conveyor 8 a , the front veneer A sent out from the pile Aa in the fiber direction is transferred to the roller conveyor 6 a s The direction is changed via the lifting roller conveyor 7a and the cross conveyor 8a
and is carried out via a correction conveyor 10a and an oscillating conveyor 10a-1 having the same configuration as the correction conveyor 10. Incidentally, the posture correction of the front veneer A can also be performed by the downwardly inclined suction conveyor 17 in the same manner as the upwardly inclined suction conveyor 5.

A second meeting point P2 where the front veneer A, which is suctioned and conveyed by the downwardly inclined suction conveyor 17, is placed on top of the stacked veneer in which the core veneer C is superimposed on the vertical center veneer, which is conveyed by the carry-out conveyor 15. The overlapping is carried out by a veneer detector 18 that detects the front edge of the front veneer A that is suctioned and conveyed along a downwardly inclined conveyor path by a downwardly inclined suction conveyor 17, and a vertical center veneer that is conveyed by an unloading conveyor 15. A veneer detector 19 is provided to detect the front edge of the overlapping veneer of the core veneer C, and an intermittent drive mechanism 17m is actuated by the detection signal of the veneer detector 18 to move the front veneer A onto a downwardly inclined conveyance path. When the veneer detector 19 detects the front edge of the stacked veneer, the intermittent drive mechanism 17m is actuated in response to the signal to start the downwardly inclined suction conveyor 17. In this case, a veneer detector 18
and the position of the single plate detector 19 is set. Even in this stacking, the front veneer A is transported by suction, so it is reliably and stably carried out, and the downwardly inclined suction conveyor 17 and the unloading conveyor 15 run at the same metering speed, so the second
Accurate meeting and overlapping of the front veneer A to the polymerized veneer at the meeting point P2 of is carried out. Note that the stacked veneers conveyed by the carry-out conveyor 15 are alternately conveyed as one in which the core veneer C is stacked on the back veneer B, and one in which the core veneer C is stacked on the vertical center veneer. , the veneer detector 19 is controlled to emit a signal every other time, and in the embodiment, the back veneer B is conveyed by the upwardly inclined suction conveyor 5, and the front veneer A is conveyed by the downwardly inclined suction conveyor 17. Although the configuration is for transportation,
Even if this is reversed, 5-brie, 3-brie, etc. plywood can be similarly constructed.

The diagram shown in FIG.
The structure includes a downwardly inclined pricking conveyor 21 instead of the rotary wheel 20.
A plurality of endless bands 20d are stretched over a, 20b, and 20c,
A large number of needle-like bodies N are attached to each endless band 20d, and a rotating wheel 2
An upwardly inclined conveyance path is formed between the rotary wheel 20C and the rotary wheel 20C, and the conveyor path is intermittently driven by an intermittent drive mechanism 20m consisting of a motor, clutch brake, etc., which drives the shaft of the rotary wheel 20C, and a predetermined metering is performed during travel. A pressure roll 20e is provided at the rotary wheel 20a and can move forward and backward at the same speed as the rotary wheel 20a.The pressure roll 20e applies needle-shaped objects to the back veneer B or the vertical center veneer conveyed from the relay conveyor 11. N is attached and the back veneer B or the vertical center veneer is attached and conveyed in a direction perpendicular to the fibers on an upwardly inclined conveyance path. The downwardly inclined pricking conveyor 21 includes rotating wheels 21a and 21b.

21c and 21d are stretched with a plurality of endless bands 21e, each endless band 21e is attached with a large number of needle-shaped bodies N, and a downwardly inclined conveyance path is formed at a portion between the rotating wheels 21a and 21b, The shaft of the rotary wheel 21d is driven. It is intermittently driven to run by an intermittent drive mechanism 21m consisting of a motor, clutch brake, etc., and when running, the speed is the same as the predetermined metering speed, and the back side of the endless band 21e is pressed by a press roll 21f that can move forward and backward, and the belt is moved from the correction conveyor 10a. The needle-like bodies N are attached to the front veneer A being conveyed, and the front veneer A is attached and conveyed in a direction perpendicular to the fibers on a downwardly inclined conveyance path.

The stacking of the core veneer C on the back veneer B or the vertical center veneer by the upwardly inclined suction conveyor 20 is performed by the detection signal from the veneer detector 13, as in the case of the upwardly inclined suction conveyor 5. The veneer B or the vertical center veneer is stopped at a predetermined position on the upwardly inclined conveyance path, and the core veneer is placed on the advance conveyor 4 by the veneer detector 14 and pushed by the hooked conveyor 12. The upwardly inclined pricking conveyor 20 is started by the detection signal of the front edge of C, and the core veneer C is superimposed on the back veneer B or the vertical center veneer at the first meeting point P1, and the needle-like body is From the back veneer B or the vertical center veneer stuck to N, the needle-shaped body N is removed by a detachment body 2Of provided near the rotary wheel 2OC, and the polymerized veneer is transferred to the carry-out conveyor 15. The stacking of the front veneer A onto the superposed veneer by the downwardly inclined sticking conveyor 21 is carried out in a downwardly inclined manner by the detection signal from the veneer detector 18, as in the case of the downwardly inclined suction conveyor 17. The tapered veneer A is stopped at a predetermined position on the path, and the downwardly inclined pricking conveyor 21 is started based on a detection signal from the veneer detector 19 of the front edge of the stacked veneer transported by the carry-out conveyor 15. is separated from the needle-shaped body N by a detachment body 21g provided near the rotary wheel 21a, and the front veneer A is superimposed on the superposed veneer at the second meeting point P2. These upwardly inclined pinning conveyor 20 and downwardly inclined pinning conveyor 21 stick the back veneer B or the vertical center veneer and the front veneer A to the first meeting point P1 or the second meeting point P2, respectively. Even when transporting, each veneer can be transported reliably and stably, and accurate stacking can be performed. Note that in the case of using the upwardly inclined pricking conveyor 20 and the downwardly inclined pricking conveyor 21, it is desirable to correct the posture in the previous process, since there is a risk of damaging the veneer if the posture is corrected.

(Effect of the invention) When stacking each veneer, the core veneer is transported in the fiber direction by a conveyor with hooks attached in the same phase, and the back veneer or the vertical center veneer and the front veneer are conveyed in the fiber direction. Conveyance in the direction perpendicular to the fibers of the veneers is carried out by holding the veneers by an upwardly inclined and downwardly inclined suction or sticking conveyor, so each veneer is stacked accurately, reliably, smoothly and stably while maintaining its posture. The veneer system is always good, and each veneer is overlapped as it travels, resulting in a highly efficient system. Also, the use of an upwardly and downwardly inclined suction or sticking conveyor reduces the site area. This method has various advantages, such as requiring only a small number of veneers, and since no impact is applied to each veneer or harsh transportation is performed, the veneers are not damaged.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, the first being a side view and the second being a side view.
The figure is a plan view of FIG. 1, and FIG. 3 is a side view showing a part of an embodiment using a pricking conveyor. 1...Gluing machine, 4...Advance conveyor. 5...Upward tilt suction conveyor, 12...Conveyor with hook, 13.14...Single plate detector, 15...Unloading conveyor. 17...Downward inclined suction conveyor, 18.19...Single plate detector, 20...Upward inclined sticking conveyor, 21...Downward inclined sticking conveyor, A...Front veneer, B. ... Back veneer, C... Core veneer, D
...Vertical center veneer, N...acicular body, Pl...first
meeting point, P2... second meeting point.

Claims (1)

[Claims] A gluing machine that applies adhesive to both the front and back sides of the core veneer while conveying it in the direction of the fibers, and a large number of disks installed on the delivery side of the gluing machine on which the core veneers coated with adhesive are placed and transported. a pre-picking conveyor, which is provided above the pre-picking conveyor, and pushes the core veneer on the pre-picking conveyor in the fiber direction toward a first meeting point appropriately set behind the pre-picking conveyor. An intermittent drive hooked conveyor in which hooks are attached in the same phase to at least two endless strips, and the back veneer or the back veneer and the vertical center veneer are alternately sucked upward diagonally in a direction orthogonal to the fibers. An intermittent-driven upwardly inclined suction or pricking conveyor consisting of at least two endless strips provided to be able to place and superimpose core veneers pushed by the hooked conveyor at the first meeting point while pricking and conveying; , a carry-out conveyor is provided following the upwardly inclined adsorption or sticking conveyor, and carries a stacked veneer in which a core veneer is stacked on a back veneer or a vertical center veneer, and a carry-out conveyor is provided above the carry-out conveyor. The front veneer can be adsorbed or stuck diagonally downward in a direction perpendicular to the fibers and conveyed, and placed on the polymerized veneer conveyed by the conveyor at a second meeting point appropriately set on the conveyor. What is claimed is: 1. A veneer mechanism device comprising an intermittent-driven downwardly inclined suction or sticking conveyor consisting of at least two endless strips provided on a veneer.