JPS647841B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The disclosed technology relates to a plywood manufacturing machine that manufactures plywood by laminating wood veneers, and relates to a veneer assembly machine.

<Summary of the gist> The invention of this application is a construction process located before the process of hot-pressing bonding of polymerized veneers using a hot press, in which adhesive is applied by a spreader and alternately supplied to a stacker. The present invention relates to a veneer feeding device for supplying an intermediate veneer to a spreader roll, and a plywood assembly device capable of supplying front and back veneers placed above in conjunction with the supply of the intermediate veneer. In particular, the intermediate veneers are supplied in upper and lower double rows in view of the supply speed for the core veneer and the front and back veneers, and are selectively and alternately supplied to the spreader roll, and also alternately from the feeder. Continuous feeding is carried out, and horizontal direction control is performed by a cross conveyor midway through.Furthermore, each veneer of the core plate and front and back plates is fed vertically after being fed horizontally by contacting the vertical feeding roller with a pinch roller. This invention relates to a plywood assembly device that does the following.

<Prior art> Three-layer, five-layer, etc. plywood has come to be widely used for furniture, furnishings, architectural formwork, etc., and the general manufacturing process for this type of plywood is to Each veneer that makes up the board is manually aligned with the edges and fed to the stacker, while the veneer that makes up the core layer is fed to the spretsuda roll of the spretsuda machine with its edges regulated and adhesive is applied. Then, the desired number of veneers forming the front and back plates and the core layer were alternately stacked on the stacker.

<Problems to be Solved by the Invention> Therefore, the conventional method not only has the disadvantage of being inefficient due to manual labor, but also has the disadvantage of poor finishing accuracy and the need for a loader or hot plate during the process of setting it on a hot press. There was a problem that could cause interference.

In addition, in order to automate the system, each veneer needs to be supplied in an orderly manner in order to polymerize correctly, and in particular, for veneers where adhesive is applied to both the front and back sides, it is necessary to apply the adhesive evenly. Its supply in an orderly manner is extremely important.

Furthermore, since the timing of supplying each veneer to the stacker is regulated by the speed of intermediate veneers, etc. that require application of adhesive, there is a problem in that the speed cannot be increased and working efficiency cannot be increased.

<Object of the Invention> The object of the invention of this application is to provide a method for spreading intermediate veneers for the stacking process in a stacker before the hot press hot stamping process in the plywood manufacturing process using multi-layered polymerized veneers based on the above-mentioned prior art. The problem of efficiency due to the supply speed to the rolls is a technical issue to be solved, and specifically, the core plate veneer and
After the front and back veneers are fed horizontally, they are immediately changed direction by the vertical feed rollers as the pinch roller rises, and fed upwards to the spretzer by the chute, and below that, the middle veneers are alternately fed in double rows. By feeding the intermediate veneer sheets one by one using each chute conveyor that corresponds to the spreader roll, it is possible to speed up the feeding of the medium veneer sheets, improve workability and increase efficiency. It is an object of the present invention to provide an excellent composite structure device that is useful for the application of plywood manufacturing technology in the manufacturing industry.

<Means and actions for solving the problem> The medium veneers are sequentially and alternately fed by a switching conveyor fed from a feeder to stationary conveyors provided in upper and lower double rows via a swing device, and , during the transfer on the fixed conveyor, the upper surface is slid laterally by the attitude adjustment conveyor installed on the fixed conveyor and rotates in a direction perpendicular to the conveyance direction, and the regulation ruler is displaced laterally. The core plates, which are positioned and aligned in contact with the stacker, are stacked in advance on the stacker, and the chute conveyors installed in each stationary conveyor are regulated and controlled by the feeding device for the front and back veneers. The adhesive is applied to the roll, and the adhesive is applied onto the core board veneer or the front and back board veneers (in the case of three-layer plywood) on the stacker, and at this point one of the adhesives is applied. The direction of the shoot conveyor toward the spreader roll is released, and the other shoot conveyor is switched to the direction of the spreader roll, while the core plate veneer and front and back plate veneers, which have been fed sideways from the feeder, are fed sideways. As it advances on the rollers and its lateral edges are regulated by side stoppers, the pinch rollers rise to pinch the core plate and front and back veneers between each vertical feed roller.
It waits on the chute with its front edge regulated, releases the standby at a predetermined timing, and discharges and places it on the veneer of the stacker. The board feeding mechanism is located between the two, and the core plate veneer feeding mechanism is located above.

<Embodiment - Configuration> Next, one embodiment of the invention of this application will be described below based on the drawings.

Furthermore, based on the judgment that it is cumbersome and does not necessarily add to the understanding of the invention of this application, it is purposeful to explain the structure of each unit in a coherent manner after a comprehensive explanation of the structure of the entire device. This will be explained together with the action.

In the embodiment shown in FIG. 1, reference numeral 1 denotes a plywood assembly device which forms the center of the gist of the invention of this application. It consists of a feeding device 4 for front and back veneers 6 and a core veneer 6'' mounted on a feeding device 2,
A predetermined stacker 5 is provided later.

The core plate 6'' is designed to have a set thickness or a slightly thicker thickness than the front and back single plates 6, 6.

The feeding device 4 for the front and back veneers 6 and the core veneer 6'' shown in FIGS.
As shown in FIG. 10, each of the lower veneers has a thick core plate 6'', a front veneer 6 of the front and back veneers, and a back veneer 6 of a predetermined size (not shown). The veneers are fed from the feeder to the transverse feed rollers 7, 7', 7'', and the transverse feed rollers 7, 7', 7'' feed each veneer 6'',
A plurality of rows are provided in the lateral direction at intervals that allow transportation while maintaining a flat plate-like posture while being flexible, and are connected to a power source (not shown) via sprockets 8, 8', and 8'' on both sides. linked drive chain 81,
81 to rotate at a constant speed as shown in FIG.

In addition, the transverse feed rollers 7, 7', 7'' are for upper, middle,
The length is equal to the width of each veneer 6'', 6, 6 in descending order.

As shown in FIG. 7, vertical feed rollers 9, 9', 9'' are placed above the set height of each row of horizontal feed rollers 7, 7', 7'' for each veneer 6, 6''. ′、
A predetermined number of sprockets 10, 10'10 are provided on both sides of each of the sprockets, which are provided in a predetermined number of rows in the longitudinal direction at intervals of 6', 6" to allow transportation while maintaining a flat plate-like posture while being flexible. Similarly, the drive chain 91, 91 is rotated at a predetermined constant speed via a drive mechanism.

Incidentally, FIG. 7 shows only the feeding mechanism of the upper core plate veneer 6'' as a representative embodiment.

Air cylinders 11, 11' are installed between the horizontal feed rollers 7 and 7', between the vertical feed rollers 9 and 9', and below the lowest horizontal feed roller 7''.
are provided in a predetermined number for frame 3, and link 1
2, 12'...... through pinch rollers 13, 1
3' so that it can freely come into contact with and separate from the vertical feed rollers 9, 9', and 9'' from below.

Furthermore, as shown in FIG. 2, each vertical feed roller 9,
At the tips of the veneers 9' and 9'', there is a belt conveyor 1 for holding each veneer 6'', 6, 6 overlapping on the lower side.
4, 14', 14'' are guide plates 15, 15',
15″ and are provided in a forward-extending manner, among which,
Guide plate 15' for back veneer 6 and front veneer 6,
15'' are close together near their tips.

The tip of the guide plate 15 of the single core plate 6'' is connected to the guide clamping belt 16 of the single core plate 6''.
The guide plates 15', 15'' of the front and back veneers 6, 6 face the bases of the guide clamping belts 16'', 16 of the front and back veneers 6, 6, and the upper and lower The tips of two sets of guide clamping belts 16, 16', 16'', 16 are placed in front of the regulating stoppers 19, 19' on the front edges of the respective air cylinders 18, 18 provided on the chute 17, 17'. There is.

Further, at the tips of the chute 17, 17', there are opening/closing stoppers 21, 21' provided on air cylinders 20, 20 (one is omitted for convenience of illustration) which are electrically connected to a predetermined control device (not shown) and operated. It is provided to operate in a predetermined cycle.

In addition, in Fig. 2, 22 is a lifting chain,
The chute 17, 17' is suspended from a chain block 23 of the frame 3 to raise and lower the chute 17, 17'.

Also, in Fig. 7, 24 is a veneer 6'', 6, 6
This is a regulating stopper for the edge of the frame 3, and is installed at a predetermined position in front of the leading edge of the transverse feed rollers 7, 7', 7''.

Therefore, when the core plate, the front plate of the front and back plates, and the back plate of each veneer 6'', 6, 6 are fed in a predetermined cycle order from the base end side of the transverse feed rollers 7, 7', 7'' by a feeder (not shown), Each veneer 6″, 6, 6 is fed horizontally,
The side edges are aligned and arranged by the regulating stopper 24.

At this point, for example, a predetermined detection mechanism (not shown) such as a photoelectric detection device detects the side edge regulation state of each veneer 6'', 6, 6, and the air cylinders 11, 1
1'...... operates, and the transverse feed rollers 7, 7', 7''
Raise the pinch rollers 13, 13... from below to lift each veneer 6'', 6, 6, and press them into contact with the rotating vertical feed rollers 9, 9', 9''... As a result, each veneer 6'', 6, 6 is converted into longitudinal feed.

Therefore, the clamping belt conveyors 14, 14', 1
4″ and guide plates 15, 15′, 1
The core plate veneer 6', the back plate veneer 6, and the top plate veneer 6 that slide the core plate veneer 6'' are held by the clamping belts 16,1.
6', the front and back veneers 6, 6 are layered and held by the clamping belts 16'', 16, and are sent out and come into contact with the regulating stoppers 19, 19' on the front edge, while the rear edge becomes free. , the front edges of the air cylinders 18, 1 are aligned, and the regulation of the side edges and front edges is completed, at which point a predetermined detection mechanism is activated as described above to open and close the regulation stoppers 19, 19.
8' to stop the front end edge 19,
19' is opened and the veneers 6'', 6, 6 are slid forward using the inclination of the chute 17, 17'.
It comes into contact with the opening/closing stoppers 21, 21' at the tip and stops.

The front and back veneers 6, 6 are each carried separately from a stock location (not shown) to the vertical feed start position using horizontal feed rollers 7', 7'', and then transferred to the horizontal feed rollers 7', 7''. Vertical feed rollers 9', 9'' disposed perpendicularly above, each veneer 6 and vertical feed roller 9',
The conveyance of the veneers 6, 6 is changed to the vertical direction by the pinch rollers 13, 13' that are in pressure contact with the veneers 9'', and then two sets of pinch conveyor belts 1 are used to pinch and convey the veneers from above and below.
4', 14''.

The front and back single plates 6, 6 are guided through guide plates 15', 15'' provided so as to guide them from the terminal end of each nipping conveyor belt 14', 14'' to a pair of nipping conveyor belts 16'', 16. Then, the front edges are aligned on the chute 17' by a regulating stopper 19' and an opening/closing stopper 21', and the sheets are kept on standby in accordance with the supply timing.

Then, via a control device (not shown), the air cylinders 20, 20 are activated at the timing when the intermediate veneer 6' is placed on the stacker 5, which will be described below.
1 and 21' open at a predetermined timing to release the core veneer 6'', the back veneer 6, and the top veneer 6, which are then coated with adhesive as described below.
6' with the core plate veneer 6'' in the center as shown in Figure 10.
Furthermore, the front plate 6 and the back plate 6 are stacked and placed on the stacker 5 so that they are integrally superposed on the front and back sides of the stacker 5.

The feeding of each veneer 6'', 6, 6, 6, 6' is continuous, but the feeding order is set in advance, and the interval between each veneer is determined by regulating stoppers 19, 19' on the front edge.
By opening and closing the opening/closing stoppers 21, 21', the front and back plates 6,
6, middle plate 6', core plate 6'', middle plate 6', front and back plates 6, 6
It is designed in advance so that the veneers of the five-layer laminated board do not interfere with each other by being fed sequentially in one cycle in this order.

Next, the front and back veneers 6, 6, and the core veneer 6″
To explain the structure and operation of the veneer feeding device 2 for the medium veneer 6', which is installed below the feeding device 4, in FIGS. 2, 3, and 4, 25 is a feeder ( (FIG. 4), a cross-type table lifter 27 that is installed at the base end of the frame 3 and that is raised by a hydraulic cylinder 26 that is installed in a predetermined servo control device and that performs a pulse sending action has a predetermined thickness, that is, As mentioned above, a predetermined number of middle veneers 6' are stacked in a stacked manner, and the uppermost veneer 6' is in contact with the feeder belt 30 of the vacuum suction device 29 connected to the vacuum pump 28. .

A pair of guide plates 31 and 3 are installed at the tip of the feeder 25 in a tapered manner.
Adjusting devices 32, 32' are installed on the frame 3 to set an interval that allows only one veneer 6' to pass through the frame 3'.
A feed roller 33 and a pinch roller 34 are provided oppositely to each other at the tip thereof.

The air cylinder 35 provided on the frame 3 is electrically connected to the control device and is movable up and down with a pulley 36 whose base end is pivoted to the frame 3. A frame 38, which is disposed between a rear end pulley 37 and a pulley 37, is rotated by the air cylinder 35 at a set angle about the pulley 36, so that the posture of the conveyor 39 can be changed vertically.

In FIGS. 2 and 3, 40 and 40' are fixed conveyors provided in two stages, upper and lower, which are connected to the switching conveyor 39 and convey the belt conveyors 41, 41,
It consists of guide rails 41' and 41' at the tip, the latter half of which extends backward in a parallel posture separated by a set height interval, and the front end of the first half approaches each other to change the upper and lower switching postures of the switching conveyor 39. At the rear of each stationary conveyor 40, 40', conveyor chains 43 are stretched between sprockets 42, 42, 42', 42'.
A pair of hooks 44, 44, 44, .

In addition, as shown in detail in FIGS. 5 and 9, spkets 45 and 45' provided at the front and rear of the guide rails 41' and 41' of the stationary conveyors 40 and 40' are arranged above the set height of the fixed conveyors 40 and 40'.
Provided between the conveyance chains 43, 43, the chain 46
are stretched in the horizontal direction, and the chain 46 has a sixth, eighth,
As shown in FIG. 9, an attitude adjustment conveyor 47 as a sew-type attitude adjustment rotary body is in sliding contact with the upper surface of the intermediate veneer 6' in a traverse attitude in the advancing direction of the intermediate veneer 6', and the moving direction chains 43, 43 , hook 4
4 and 44, and the side edge of the middle plate 6' is brought into contact with a regulating stopper 48 for the side edge provided on the frame 3 to regulate its posture. , 9, the side edge of the hook 44 is controlled in addition to the rear edge of the hook 44, thereby ensuring that the feeding attitude is always constant.

The shaft 49 of one sprocket 45 is pivotally supported by bearings 50, 50 provided on the frame 3, as shown in FIGS. It is made rotatable by a driving force from a transmission system (not shown) via pulleys 53, 53' provided in the figure.

In addition, as shown in Fig. 3, the guide rails 41', 4
At the tip of 1' there are upper and lower chute conveyors 54, 5.
4', and furthermore, a frame 3 is provided just below the tip of each guide rail 41' as shown in FIG.
Upper and lower chute plates 56, 56' are provided which are pivotably supported via shafts 55, respectively.

The tips of the shoot plates 56, 56' are alternately moved by sliders 58, 58' that slide back and forth on the sides of the shoot plates 56, 56' in conjunction with crank devices 57, 57' as switching devices. It selectively faces the opposing surfaces of the spreader rolls 59, 59'.

As shown in FIG. 3, the crank devices 57, 57' are alternately and non-reciprocally connected to the motor 6 by a well-known electromagnetic clutch switching device 60 via a belt pulley mechanism.
The belt pulley mechanism of the stacker 5 is connected to the belt pulley mechanism of the stacker 5 so as to be connected in the forward and reverse directions.
It is set so that the intermediate veneer 6' is placed on top.

Further, the shoot plates 56, 56' are oscillated to move their tips up and down, and synchronously, one side is directed toward the opposing portion of the spreader rolls 59, 59', and the other side is moved away.

Incidentally, adhesive hoppers 68, 68' are attached to the spreader rolls 59, 59' via idle rolls, and adhesive hoppers 68, 68' are attached to the front and back surfaces of the intermediate veneer 6' via the spreader rolls 59, 59'. Apply a non-stick adhesive to the front and back surfaces of the front and back veneers 6, 6, or
The core plate veneer 6'' is joined and integrated.

Feed conveyor belts 62, 62' are provided on the respective chute plates 56, 56', and drive belts for the sprockets 42, 42' of the stationary conveyors 40, 40' are connected via belt pulley mechanisms 63, 63'. It is synchronously linked with the pulley mechanisms 64 and 64', and is selectively connected to the drive source by switching the upper and lower stages alternately and exclusively through both stops by a switching operation including neutralization of the electromagnetic clutch 65. ing.

Further, at the tip of each of the shoot plates 56, 56', air is actuated via a limit switch (not shown) when the shoot plates 56, 56' are selectively directed toward the opposing portions of the spreader rolls 59, 59'. The cylinders 66, 66' are the stoppers 67, 6
I'm trying to open 7'.

In addition, in FIGS. 2 and 3, for convenience of illustration, both the chute conveyors 54 and 54' are shown by solid lines so as to point toward the opposing portions of the spreader rolls 59 and 59', but in reality, Of course, one can selectively exhibit a state in which one is directed and the other is away.

In addition, in the feeding device 2 for the medium veneer 6', from the switching conveyor 39 to the end stoppers 67, 67',
Selective intermittent operation in which one is in operation and the other is stopped is performed by a control device, an electromagnetic clutch, other limit switches, etc., but the feeding device 2 as a whole operates in a kind of continuous operation from the feeder 25 to the spreader rolls 59, 59'. It will be held until
It is only necessary to set the feeding speed of the feeder 25 to be faster than the feed speed and conveyance speed of the upper front and back veneers 6, 6 and the core veneer 6''.

The order in which the top and back veneers 6, 6, the core veneers 6'', and the middle veneers 6', 6' are fed is as shown in FIG. 11, as described above. (The circled numbers indicate the order of supply), first the back and front veneers 6, 6, then the middle veneer 6', then the core veneer 6'', then the middle veneer 6' again, and then the back veneer again. The cycle in which the top veneers 6 and 6 are stacked and discharged onto the stacker 5 is repeated.

<Embodiment - Effects> In the above-described configuration, the table lifter 27 is raised at a constant slow speed, and the vacuum suction device 29 moves the middle veneer 6' into the core veneer 6'', the front and back veneers 6, Even if two veneers 6', 6' are accidentally attracted and fed forward, the guide plates 31, 3
1' and adjusting devices 32 and 32', as described above, only one sheet is fed and the other sheet is removed at a predetermined value.

The switching conveyor 39 swings up and down intermittently by the air cylinder 35, which expands and contracts at a predetermined control timing, and transfers the intermediate veneer 6' one by one to the upper and lower stationary conveyors as shown in FIG. 40,4
Belt conveyors 41, 41 in the first half of each base of 0'
The feed is alternately switched to the top.

Therefore, even if the middle veneer 6' is fed at a considerably high speed, as a result, on the stacker 5 after applying the adhesive, the core veneer 6'' and the front and back veneers 6, 6 are
It is possible to match the feed timing of the

The middle plate veneer 6' is also conveyed by chains 43, 43 from stationary conveyors 40, 40' which are intermittently rotated.
The baton is applied to the hooks 44, 44 of the belt conveyor 41, 41, and the guide rails 41', 4
1', and during that time, it is laterally slid on the upper surface by the attitude adjustment conveyor 47, which is rotated in a traverse manner in the feeding direction, and a lateral displacement force is applied to the paper, and the paper is transported laterally as well. The side edges are aligned by the side edge regulating stoppers 48, and the rear edges are aligned through the push and push of the hook 44 against the rear edge, and the sheets are sent backward in an orderly manner.

In this state, with the rear edge of the intermediate veneer 6' positioned relative to the stoppers 67, 67', one of the chute conveyors 54, 54' is moved to the spreader roll 5.
9, 59', one stage of the chute conveyors 54, 54' stops, the other stage takes a moving conveyance state, and the spreader rolls 59, 5
The middle plate veneer 6' is placed in a feeding state so as to be directed toward the opposite portion of the intermediate plate 9'.

Therefore, to explain from the stopped state of the upper conveyor system, the joint unit consisting of the core plate veneer 6'' and the following front and back plate veneers 6, 6 is connected to the core plate 6'', and then to the back plate. At the timing when the middle veneers 6', 6' are released and placed before and after the top veneers 6, 6, the electromagnetic clutches 60, 65 are switched via the control device, and the crank mechanisms 57, 57' are mutually switched. Both chute conveyors 54, 54' move forward and backward, and the upper side is moved by the spreader rollers 59, 59'.
Directs toward the opposite part, and the lower side separates.

Then, in this state, the upper stopper 67 is opened, the lower stopper 67' is closed, the upper conveyor system is all in operation, the switching conveyor 39 is also switched to the upper side, and the single medium veneer 6' is moved. Feed from feeder 25 to spreader rolls 59, 59'
Hopper 68,
The adhesive supplied from 68' is applied, discharged into the stacker 5, and lowered onto the back and top veneers 6, 6 placed in advance, and onto the top veneer 6. Overlap.

Next, the stopper 21 is opened by the control device, and the aligned core plate veneers 6'' are released onto the stacker 5 and placed on the intermediate plate veneers 6' placed previously.

At the same time, the stopper 67 closes, and the electromagnetic clutch 60 switches to move the shoot plates 56, 56' upwardly through the forward and reverse movements of the crank mechanisms 57, 57'.
are separated, and the lower shoot plate 56' is directed toward the opposing portion of the spreader rolls 59, 59'.

During the upward displacement, the upper and lower conveyor systems are stopped by switching the electromagnetic clutch 65 to neutral, and the switching conveyor 39 is also switched downward.

Therefore, both upper and lower chute plates 5
Above 6 and 56', a single intermediate plate 6' is attached to a stopper 6.
It has been advanced to 7,67' and has reached the state.

Therefore, when the switching of the chute plates 56, 56' is completed, the detection device causes the lower air cylinder 66' to open the stopper 67' and at the same time the electromagnetic clutch 65 is switched from neutral, the lower stage begins to operate, and the air cylinder 66' of the lower stage opens the stopper 67'. The medium veneer 6' is fed, and one sheet is fed from the shute plates 56, 56' to the spreader rolls 59, 59'.
The core plate veneer 6'' placed in advance is placed and bonded, and then the stopper 21' is opened by the control device, and with the front and back plate veneers 6, 6 superimposed, The medium veneer 6' placed thereon is discharged onto the stacker 5, forming one cycle of five-layer plywood.

Hereinafter, the above-mentioned process is repeated and alternate switching is performed, and each veneer 6, 6,
6', 6''...... are laminated and polymerized.

Note that the medium veneer 6' is continuously fed from the feeder 25 onto the switching conveyor 39, but the belt conveyors 41', 4 on the stationary conveyors 40, 40'
1' are alternately delivered in the switched state and transferred and received when the stationary conveyor 40 is in the operating state.

Therefore, the feeding speed of each veneer 6, 6 of the front and back plates, which are lightweight as a whole, is slow to match the feeding speed of the core plate veneer 6'', which is thicker and heavier than this, and the weight The large medium veneer 6' can be fed alternately and quickly in two stages, upper and lower.
As a result, from the spreader rolls 59, 59', the core plate veneer 6'' and the front and back plate veneers 6, 6 are continuously discharged and placed on the stacker 5 in proportion to each other.

It goes without saying that the embodiments of the invention of this application are not limited to the above-described embodiments; for example, various embodiments may be adopted, such as using a rubber roll or the like instead of the posture adjustment conveyor.

<Effects of the Invention> As described above, according to the invention of this application, basically, the medium veneer is fed to the spreader roll and the adhesive is applied by continuous feeding from the feeder, and the medium veneer is switched. By using a swing device to alternately switch the conveyor to a multi-stage stationary conveyor for feeding, compared to the veneers for the front and back plates and the veneer for the core plate, the weight of the medium is greater than that required for adhesive application. Since the conveyance path of the veneer board is made multi-stage with two stages, upper and lower, it is possible to speed up the feeding of the middle board, so the feeding speed of the core board and the front and back veneers can be adjusted as quickly as possible. This has the excellent effect of promoting productivity improvement.

In addition, by providing a chute conveyor whose base end is fixed at the tip of each fixed conveyor and whose tip is directed toward and away from the spreader roll alternately, it is possible to transport intermediate plates in multiple stages intermittently. The effect of being able to alternately feed the plates to the spreader rolls together with the core plate veneer and the front and back plate veneers at a constant speed is achieved.

In addition, by providing an attitude adjusting rotor that applies a lateral movement force midway through the stationary conveyor of the medium veneer feeding device, the medium veneer is prevented from coming into contact with the side stopper during transfer. All the pieces are arranged in the same posture,
An excellent effect is achieved in that the adhesive is applied to the same position.

In this case, since the lateral movement is performed by rotation, there is an advantage that there is no hindrance to the feeding of the intermediate veneer.

By installing the front and back plate veneer feeder on top of the middle plate veneer feeder, the structure mechanism and the spreader mechanism are combined into one plant, making the overall device more compact and easier to control and maintain. It has the advantage of being easy to manage and does not take up much space.

In addition, the front and back veneers can be conveyed vertically by installing a vertical feed roller on the horizontal feed roller and raising and lowering the pinch roller between the horizontal feed rollers and immediately converting the front and back veneers to the vertical feed roller. This also has the effect of making the device more compact.

Furthermore, after the horizontal feed, the terminal end of the horizontal feed, which enables vertical feed, can not only be used to regulate the side edges, but also can be used as a detection position for feed conversion, producing an excellent effect.

[Brief explanation of drawings]

The drawings are explanatory diagrams of one embodiment of the invention of this application, in which Fig. 1 is an overall schematic side view, Fig. 2 is a partially enlarged side view thereof, and Fig. 3 is an enlarged front side view of the intermediate plate veneer feeding device. 4 is an enlarged side view of the feeder section, FIG. 5 is a partial side view of the attitude adjustment rotor, FIG. 6 is a partial sectional front view of the same, and FIG. 7 is a plan view of the front and back veneer feed conversion section. 8 and 9 are schematic planes of FIG. 5, and
A perspective view, FIG. 10 is a schematic half-sectional view of one unit of a core plate, a middle plate, and front and back plates, and FIG. 11 is a schematic diagram of a feeding cycle of the middle plate, core plate, and front and back plates onto a stacker. 6, 6', 6''...Single board, 5...Statska, 5
9,59'...Spread roll, 25...Feeder, 1...Plywood assembly device, 35...Swing device, 39...Switching conveyor, 40,40'...Stationary conveyor, 54,54'...Shield ute conveyor,
57, 57'...Switching device, 47...Position adjustment rotating body, 48...Stopper, 2...Feeding device for the middle plate veneer, 4...Feeding device for the front and back veneers and the core plate veneer , 17, 17'... shoot, 9, 9', 9''
... Vertical feed roller, 13 ... Pinch roller, 7,
7', 7''...Transverse feed roller.

Claims (1)

[Scope of Claims] 1. A veneer stacker 5 for stacking multi-layered and polymerized veneers, a spreader installed in front of the stacker 5 for gluing the veneers 6', and further installed in front of the spreader. In a plywood assembly apparatus having a veneer feeding device 2 that supplies veneer 6' from a feeder 25 to a spreader, a swinging end of a switching conveyor 39 is provided, in which the feeder 25 side is fixed and the other end is swingable. The fixed conveyors 40, 40' provided above and below can be switched and faced freely, while the other ends of the fixed conveyors 40, 40' provided above and below are directed toward the spreader rolls 59, 59' of the spreader. A plywood assembling device characterized by being provided with a veneer feeding device 2 consisting of chute conveyors 54, 54' which can be freely separated. 2 A veneer stacker 5 for stacking veneers that have been layered and superposed, and a spreader installed in front of the stacker 5 for gluing the veneers 6', and further installed in front of the spreader for gluing veneers from the feeder 25. In a plywood assembly apparatus having a veneer feeding device 2 that supplies boards 6' to a spreader, a stationary conveyor is provided with swinging ends of a switching conveyor 39 provided above and below, with the feeder 25 side fixed and the other end swinging freely. 40, 40', and on the other end of each of the fixed conveyors 40, 40' provided above and below, there is a chute whose tip end can be directed toward and away from the spreader rolls 59, 59' of the spreader. A veneer feeding device 2 consisting of conveyors 54, 54' is provided, and the veneer conveyed to each stationary conveyor 40, 40' is brought into contact with the veneer from above while rotating perpendicular to the conveying direction. Attitude adjusting rotary body 47 for adjusting the conveying posture of the veneer and the attitude adjusting rotary body 47 of the stationary conveyor 40, 40'
A plywood assembling apparatus characterized by being provided with a veneer transport attitude control device comprising a regulating stopper 48 provided at a position facing the veneer. 3 A veneer stacker 5 for stacking laminated and superposed veneers, a spreader for gluing veneers 6' placed in front of the stacker 5, and a spreader for gluing veneers 6' from the feeder 25 by being installed in front of the spreader. A veneer feeding device 2 that supplies the board 6' to a spreader, and the veneer feeding device 2
In the plywood assembly apparatus having a double row of core plates having chute 17, 17' facing the stacker 5 by overhanging the spreader above, a core for feeding the front and back plates, and a veneer feeding device 4 for the front and back plates, the feeder A switching conveyor 39 whose 25 side is fixed and whose other end is vertically swingable, and a fixed conveyor 40 at a vertical position corresponding to the swinging position of the switching conveyor 39.
40', and on the other end side of each of the fixed conveyors 40, 40' provided above and below, there are chute conveyors 54, 54' whose tips can be directed to and away from the spreader rolls 59, 59' of the spreader. A veneer feeding device 2 formed from the above-mentioned spreader and cross-feeding rollers 7, 7' for carrying in the core and front and back veneers 6, 6 are provided, and the carried-in veneers are passed through the veneer rollers 7, 7', 7. The core and A plywood assembly device characterized by being provided with a front and back veneer feeding device 4.