JPH10225908A - Device for manufacture of veneer laminated material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply an adhesive smoothly to a veneer at a high efficiency by protecting a base board or a longitudinal core veneer against a double coating by positioning a trough right below an extruding nozzle when a cross veneer is inserted, and moving each of the veneers backward and further depositing the cross veneer on the receding longitudinal core veneer and conveying it. SOLUTION: When manufacturing an LVL product made up of a cross veneer 4 as a second member in between, first a base board 7 is conveyed as a back board and an adhesive is applied to the upper face of the base board 7. When the rear end of the base board 7 is part a position right below an extruding nozzle 1a, a trough 1c is positioned right below the extruding nozzle 1a and at the same time, the base board 7 is reversely conveyed to a specified position. Next, the cross veneer 4 whose fiber direction as the veneer 4 is conveyed is orthogonal with the fiber direction of the base board 7, is superposed on the base board 7 and then is conveyed to be stacked at a stacking site after the adhesive is applied to the upper face of the cross veneer 4. After that, either of longitudinal core veneers 5, 6 is conveyed and is stacked on the earlier stacked cross veneer 4 after applying the adhesive to the upper face of the longitudinal core veneer 5 or 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top plate and a back plate called an original plate in a plywood manufacturing process, a cross veneer called a side core plate, and a vertical core veneer called a middle plate. The present invention relates to an apparatus for manufacturing a veneer laminated material in which an adhesive is selectively applied by an applicator, overlapped at a deposition site, and appropriately formed into an intermediate product of a ply.

[0002]

2. Description of the Related Art A conventional apparatus for producing a single-layer laminated material of this kind is:
For example, Japanese Patent Application Laid-Open No. Hei 6-91605 discloses a sizing apparatus for manufacturing plywood.

[0003]

In the above-mentioned prior art, a plurality of filaments are horizontally stretched somewhat below the veneer conveying line in communication with the carry-in and carry-out conveyors of the top coater. Since there is no problem at the start of work, the adhesive adhering to the line just below the top coater thickens over time and hinders veneer conveyance, and the veneer stops when time elapses In many cases, the adhesive does not enter the glue receiving box immediately below and leaks around. Therefore, there are problems such as a decrease in productivity and a decrease in the yield of the adhesive.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to achieve the above-mentioned object, and to dispose an adhesive such as an extruder or the like on an upper surface of a veneer, and to dispose an adhesive before and after the upper surface applying machine. A carry-in conveyor and a carry-out conveyor capable of moving forward, backward and intermittently, a single veneer arranged on one side of the carry-in conveyor and a single vertical veneer arranged on the other side of the carry-in conveyor; A first supply device for supplying a predetermined position of the carry-in conveyor from the upper surface of each of the stacks, a carry conveyor arranged on the carry-in side of the carry-in conveyor and capable of carrying at the same speed as the carry-in conveyor and intermittently driving; Predetermined positions of the transport conveyor from the top of the stack, one sheet each of an original plate such as a front plate or a back plate disposed on one side of the conveyor and a vertical single veneer disposed on the other side of the transport conveyor. A second supply device for supplying, a bottom plate supply device for supplying a bottom plate disposed on one side of the discharge conveyor one by one from a top surface of the stack to a predetermined position of the discharge conveyor at a preset time, A diverting conveyor arranged between rows of conveyors for diverting each veneer arriving on the carry-out conveyor in the orthogonal direction each time, and being arranged between the rows of diverting conveyors and transporting on the diverting conveyor; And a conveyer that supports each veneer from below and places it on a pile each time.

[0005]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of the apparatus of the present invention, FIG. 2 is a side view showing an embodiment of the apparatus of the present invention, and FIG.
4 is a front view showing an embodiment of the apparatus of the present invention, and FIGS. 4 and 5 are operation explanatory diagrams of an embodiment of the apparatus of the present invention.

Reference numeral 1 denotes an upper surface coating machine, which is an extruder system including an extrusion nozzle 1a, a glue receiving box 1b, a gutter 1c, and the like, and other curtain coater type adhesives such as urea resin and phenol resin in a multi-line form. Is configured to be extruded in a waterfall shape and capable of being coated on the upper surface of a veneer at about 150 to 250 g / m ² . Reference numeral 2 denotes a carry-in conveyor, which includes a roller conveyor 2a and a driving device 2b capable of rotating the roller conveyor 2a forward and backward at a predetermined speed and intermittently. Reference numeral 3 denotes a carry-out conveyor, and the carry-in conveyor 2
Roller conveyor 3a and roller conveyor 3a
And a driving device 3b capable of normal rotation and reverse rotation and intermittent driving at a predetermined speed. Reference numeral 4 denotes a single veneer cloth, which is mounted on an elevating table. The level of the upper surface of the stack is kept constant by detecting the level of the upper surface of the stack from the side by a detector such as a photoelectric switch and controlling the elevating table to move up and down. And can be taken out one by one from the upper surface. Reference numerals 5 and 6 denote vertical core veneers, which are mounted on an elevating table in the same manner as the cross veneer 4 and which detect the level of the upper surface of the stack from the side by a detector such as a photoelectric switch to raise / lower the elevating table. By controlling, the level of the upper surface of the deposition is controlled to be constant, and it is possible to take out one by one from the upper surface. Reference numeral 7 denotes an original plate serving as a back plate or a front plate. The original plate is mounted on an elevating table similarly to the single veneer cloth 4, and a detector such as a photoelectric switch detects the level of the upper surface of the stack from a side and detects the level of the elevating table. Is controlled so that the level of the upper surface of the deposition is constant, and it is possible to take out one by one from the upper surface. Each veneer has a thickness of 1.5 to 6 mm and a width of 900 to 13 mm.
A diameter of about 00 mm and a length of about 1500 to 6000 mm is used. Reference numeral 8 denotes a first supply device, which includes a suction box 8a, a moving rail 8b, a driving device 8c, and the like, and includes a cross veneer 4 and a vertical core veneer 5 placed on both sides of the carry-in conveyor 2.
Are suctioned one by one from the upper surface of each stack in a preset order and supplied to a predetermined position of the carry-in conveyor 2. Reference numeral 9 denotes a conveyor, which comprises a conveyor 9a such as a belt conveyor or a roller conveyor arranged on the carry-in side of the carry-in conveyor 2, and a drive device 9b capable of intermittently driving the conveyor 9a. Reference numeral 10 denotes a second supply device, which comprises a suction box 10a, a moving rail 10b, a driving device 10c, and the like, like the first supply device 8, and the original plate 7 and the vertical center placed on both sides of the transport conveyor 9. The veneers 6 are suctioned one by one from the upper surface of each stack in a preset order and supplied to a predetermined position of the transport conveyor 9. Reference numeral 11 denotes a floor feeding device, which comprises a feeding claw 11a and a reciprocating operation device 11b such as an air cylinder, which is hooked on one side of the base plate 12 and is placed on a lifting table by the operation of the reciprocating operation device 11b. The uppermost bottom plate 12 is supplied one by one to a predetermined position on the carry-out conveyor 3 at a preset time. still,
Of course, a suction type using a suction cup or the like may be used instead of the feeding claw 11a. Reference numeral 13 denotes a direction change conveyor which is always located below the transport level of the unloading conveyor 3 and is unloaded each time the veneers 4, 5, 6, 7 or the floor plate 13 to be deposited on the unloading conveyor 3 arrive. Although not shown, the conveyor 3 is positioned slightly above the transport level by a reciprocating device or the like, and then is turned in the orthogonal direction. Reference numeral 14 denotes an in / out conveyor, which is disposed between the rows of the turning conveyor 13 and which moves horizontally between a predetermined position of the turning conveyor 13 and a product stacking position, and a reciprocating device 14b.
Each time the veneer 4, 5, 6, 7 or the floor plate 12 arrives at a predetermined position of the direction change conveyor 13 set in advance by, for example, it is continuously conveyed and accumulated as an intermediate product 15 sequentially. It should be noted that a worker who assists the deposition while also inspecting the defective product is provided at the deposition site, and the line is arbitrarily stopped every time a defective product is found to perform the repair work.

Next, the operation of the apparatus of the present invention will be described with reference to FIGS.
And FIG. 1 is an operation explanatory view showing an example of the embodiment of the present invention device.
The present invention will be described with reference to a plan view showing an embodiment of the present invention. With this device, for example, the upper and lower second cloth veneer 4
In the case of producing an LVL product in which an LVL product is inserted, first, an original plate 7 serving as a back plate, that is, an original plate 7 in which the fiber direction is the same as the transport direction of the import conveyor 2 is transported by the import conveyor 2 and the upper surface coating machine 1 For example, by passing the sheet immediately below the extrusion nozzle 1a at an appropriate speed,
While the adhesive is applied to the upper surface of about 150 to 250 grams per square meter, the transport to the carry-out conveyor 3 is continued (see FIG. 4A).

Next, the rear end of the original plate 7 is
When the gutter 1c has passed just below the a, the gutter 1c is located immediately below the extrusion nozzle 1a by a reciprocating device such as an air cylinder (not shown), and the carry-out conveyor 3 and the carry-in conveyor 2 start reverse rotation and are blocked. After passing directly below the nozzle 1a, it is reversely conveyed and stopped at a predetermined position of the carry-in conveyor 2 (see FIG. 4B).

When the original plate 7 passes just below the extrusion nozzle 1a, the gutter 1c is immediately returned to its original position by the operation of the reciprocating device and is ready to apply the adhesive, and stops at the predetermined position. The original plate 7 is aligned on the spot by well-known alignment means (not shown), and when the alignment is completed,
The single veneer cloth 4 whose fiber direction transferred by the first supply device 8 in the standby direction is orthogonal to the fiber direction of the original plate 7 is placed on the original plate 7 in an overlapping manner (in this case, the cloth veneer). The veneer 4 becomes the second cloth veneer located from the bottom of the intermediate product), and then, when the mounting of the veneer veneer 4 is finished, the carry-in conveyor 2 and the carry-out conveyor 3 are restarted, and The plate 4 passes directly below the extrusion nozzle 1a at a predetermined speed while being supported by the original plate 7 on its lower surface, and stops at a predetermined position on the unloading conveyor 3. At this time, the cloth veneer 4
It is needless to say that a predetermined amount of adhesive is applied to the upper surface of the substrate as in the case of the original plate 7. And the original plate 7 stopped
The cross veneer 4 is transported in the orthogonal direction by the direction change conveyor 13, further supported and transported from below by the in-and-out conveyor 14, and deposited at the deposition location (see FIG. 4C).

Next, a single-core or scarf-joined vertical core veneer 5 whose fiber direction is the same as that of the original plate 7
Or 6 is conveyed by the carry-in conveyor 2 and the extrusion nozzle 1
a, the adhesive is applied to the upper surface, and the conveyance is continued by the unloading conveyor 3, and after stopping at a predetermined position on the unloading conveyor 3, the direction is immediately changed in the case of the vertical core veneer 5 or 6 Conveyed in the orthogonal direction by the conveyor 13,
Further, it is supported and conveyed from below by the in-and-out conveyor 14 and is deposited on the single veneer cloth 4 previously deposited (see FIG. 4D). The vertical core veneer 5 or 6 is sequentially conveyed by a preset number and is mechanically deposited.

Next, when the set number of the vertical core veneers 5 or 6 is completed and the cloth veneer 4 to be positioned as the second product from the top of the intermediate product is supplied, the fiber direction is set to the carry-in conveyor 2 in the transport direction. Is supplied in the same direction as the vertical core veneer 5 or 6, and the fiber direction transferred by the standby first supply device 8 is changed to the vertical core veneer 5 or 6 in the same manner as in the case of the original plate 7. A single veneer cloth 4, which is in a direction perpendicular to the fiber direction, is placed on top of the vertical core veneer 5 or 6 (in this case, the single veneer cloth 4 is the second sheet from the intermediate product). And vice versa, directly under and directly below the extrusion nozzle 1a, conveyed in the orthogonal direction by the direction change conveyor 13, and further supported and conveyed from below by the in / out conveyor 14 to the vertical core veneer 5 at the deposition location. Or deposit with 6 veneer facing down and veneer veneer facing up Those (see FIG. 5 (E to G)). Next, the original plate 7 serving as the front plate is conveyed to the carry-in conveyor 2, but the adhesive is not applied on the original plate 7 serving as the front plate, so that the gutter 1 c is positioned immediately below the extrusion nozzle 1 a and passed onto the carry-out conveyor 3. The directional change conveyor 13 and the in-and-out conveyor 14 are operated to mechanically deposit on the cloth veneer 4 previously deposited (see FIG. 5 (H)). When producing an LVL product in which the cross veneers 4 are put in places other than the second upper and lower sheets, the operation shown in FIG. The floor plate 12 is supplied from the floor plate supply device 11 onto the carry-out conveyor 3 each time so that the floor plate 12 is located at the lowermost surface of the accumulation of the intermediate product 15 and at the intermediate position for each predetermined mechanism, for example, at the intermediate position for every ten mechanisms and the uppermost surface. Then, they are sequentially and mechanically deposited in a preset order by the direction change conveyor 13 and the in / out conveyor 14. Further, the vertical core veneers 5 and 6 have piles which are inverted from the vertical core veneer 5 and the vertical core veneers 6 are alternately supplied from the two piles to prevent warping of the finished product. In addition, when the pile of the vertical core veneer 5 is exhausted, the pile of the vertical core veneer may be supplied supplementarily so as not to reduce the production. Needless to say, a well-known holding device or the like may be added to this, so that the vertical single veneer can be supplied without interruption to prevent a decrease in productivity. Further, an aligning device is added to each of the first and second supply devices 8 and 10 so that the position of one end in the direction orthogonal to the transport direction can be accurately adjusted when the first and second supply devices 8 and 10 are placed on the respective conveyors 2 and 9. Needless to say, this may be done. Although not shown, it is a matter of course that a detector or the like is provided in each section, and that a detection signal is transmitted to a control circuit for controlling the entire apparatus to operate each section according to a preset mechanism order.

[0013]

According to the present invention, an upper surface applicator for applying an adhesive such as an extruder to the upper surface of a veneer, and a carry-in conveyor and an unloader which can be moved forward and backward and intermittently arranged before and after the upper surface applicator. Conveyors, cross veneers arranged on one side of the carry-in conveyor and vertical core veneers arranged on the other side of the carry-in conveyor are placed one by one from the upper surface of the stack at predetermined positions on the carry-in conveyor, respectively. A first supply device for supplying, a transport conveyor disposed on the loading side of the loading conveyor and capable of being transported and intermittently driven at the same speed as the loading conveyor, and a top plate disposed on one side of the transport conveyor or A second supply device for supplying an original plate such as a back plate and a single vertical core plate disposed on the other side of the conveyor one by one to a predetermined position of the conveyor from the upper surface of the stack, and the unloading conveyor; A bottom plate supply device for supplying the bottom plates arranged on one side of the stack one by one from a top surface of a stack to a predetermined position of a carry-out conveyor at a preset time, and a bottom plate disposed between the rows of the carry-out conveyors on the carry-out conveyor. A turning conveyor that turns each veneer arriving at an orthogonal direction each time, and supports each veneer that is disposed between the rows of the turning conveyors and conveyed on the turning conveyor from below. It consists of an incoming and outgoing conveyor placed on a pile each time.When inserting a veneer, extrude an original plate such as a back plate or a top plate or a veneer veneer that is strong in the transport direction where the adhesive is applied. After the gutter is positioned just below the nozzle to prevent coating twice, each veneer is retracted and a veneer cloth having no strength in the transport direction is placed thereon and transported. Because it is a line, etc. The adhesive can be smoothly and efficiently applied to the veneer without disposing, and the apparatus is simplified, troubles at the time of transport are eliminated, and prevention of a decrease in productivity and a decrease in the yield of the adhesive are eliminated. This is a very remarkable implementation effect.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the device of the present invention.

FIG. 2 is a side view showing an embodiment of the device of the present invention.

FIG. 3 is a front view showing an embodiment of the device of the present invention.

FIG. 4 is an operation explanatory view showing an example of the embodiment of the device of the present invention.

FIG. 5 is an operation explanatory view showing an example of the embodiment of the device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top surface coating machine 1a Extrusion nozzle 1b Glue receiving box 1c Gutter 2 Carry-in conveyor 2a Roller conveyor 2b Drive 3 Carry-out conveyor 3a Roller conveyor 3b Drive 4 Cross veneer 5 Vertical core veneer 6 Vertical core veneer 7 Original plate 8 First Supply device 8a Suction box 8b Moving rail 8c Driving device 9 Conveying conveyor 9a Conveyor 9b Driving device 10 Second feeding device 10a Suction box 10b Moving rail 10c Driving device 11 Floor plate feeding device 11a Feeding claw 11b Reciprocating device 12 Laying plate 13 direction Conversion conveyor 14 In / out conveyor 14a Conveyor 14b Reciprocating device 15 Intermediate product

Claims (1)

[Claims] 1. An upper surface coating machine for applying an adhesive such as an extruder to an upper surface of a veneer, a carry-in conveyor and a carry-out conveyor disposed before and after the upper surface coater and capable of moving forward, backward, and intermittently. A first method in which a cross veneer arranged on one side of the conveyor and a vertical core veneer arranged on the other side of the carry-in conveyor are supplied one by one to respective predetermined positions of the carry-in conveyor from the upper surface of the stack. A supply device, a transport conveyor that is disposed on the loading side of the loading conveyor and that can be transported at the same speed as the loading conveyor and that can be intermittently driven, and an original plate such as a front plate or a back plate disposed on one side of the transport conveyor. And a second supply device for supplying the vertical core veneers arranged on the other side of the conveyor one by one to respective predetermined positions of the conveyor from the top of the stack, and one side of the unloading conveyor. To Place the placed sole plate from the top of the pile 1
A sheet feeder that feeds sheet-by-sheet to a predetermined position of a carry-out conveyor at a preset time, and a veneer that is arranged between rows of the carry-out conveyors and turns each veneer that arrives on the carry-out conveyor in an orthogonal direction each time. It comprises a direction change conveyor, and an in / out conveyor which is disposed between the rows of the direction change conveyor and supports each veneer conveyed on the direction change conveyor from below and places it on a pile each time. Single-ply laminated material manufacturing equipment.