JPH0249203B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for stacking veneers, and its purpose is to stack a plurality of veneers by sandwiching them from above and below and partially overlapping them. The object of the present invention is to improve the accuracy of veneers, shorten the time for stacking them, and to immediately move the veneers in the stacked state in the conveying direction, thereby making it possible to quickly process the veneers.

However, in the conventional process of stacking veneers (veneer veneers), positioning is carried out on a conveyor installed in multiple stages, for example, as in the invention described in Japanese Patent Application Laid-Open No. 52-64411. The veneers were pressed down from above with a knock-off rod approximately at the center of the pair of conveyors, and the plurality of veneers were struck directly below, thereby overlapping them. However, with this method, in order to drop multiple veneers from the conveyor, it is necessary to take a long vertical distance between the conveyor and the stacking position, which inevitably lengthens the reciprocating stroke of the knock-off rod, resulting in a single stacking process. The time required will also be longer. Also, if this is made into a device, the device becomes complicated and
Maintenance management is also complicated, and in addition, when trying to transport these veneers after stacking them, it is impossible to move the veneers until they have finished falling from the conveyor, making it impossible to process the veneers quickly. There were flaws.

The present invention was developed in order to overcome such drawbacks, by sandwiching a plurality of veneers from above and below, partially overlapping them, and transporting them immediately after overlapping, thereby eliminating both the overlapping and transporting processes. It is characterized by being carried out simultaneously.

That is, the method for stacking veneers according to the present invention (first method)
In the invention, a plurality of veneers are conveyed by a veneer conveyor made up of a veneer conveyor consisting of at least two conveyors on the right and left vertically installed in multiple stages, so that the front end or the rear end thereof is The veneers are aligned and stopped, and each veneer is placed on a ruler, and the veneers are held at appropriate positions between the left and right conveyors from above and below in a direction substantially parallel to the conveyance direction, and the veneers are partially overlapped. The veneer is moved in the conveying direction while maintaining the partially overlapping state of the veneer (with or without releasing the clamp), and is placed on a stacking table or an unloading conveyor provided on the unloading side of the veneer conveyor. It is characterized by overlapping the entire surface of the veneer, and includes all the implementation methods according to the four device inventions described above one after another. Each device invention will be described below based on embodiments shown in the drawings.

The second invention (i.e., the first device invention) is a veneer comprising at least two conveyors arranged on the left and right that stop in conjunction with a veneer detector that detects the front end or rear end of the veneer being conveyed. A plurality of veneer conveyors are installed vertically in multiple stages, and between the left and right conveyors, above the topmost veneer conveyor and below the bottom veneer conveyor, the plurality of veneer conveyors are installed. A veneer pressing member is provided that holds a plurality of veneers stopped on the conveyor from above and below in substantially parallel to the conveying direction, and a veneer pressing member is provided on at least one of the upper and lower veneer pressing members on the discharge side of the veneer conveyor. This invention relates to a veneer stacking device characterized in that it is associated with a reciprocating mechanism for moving a veneer pressing member onto a stacking table or an unloading conveyor provided in the veneer, as shown in FIGS. The veneer transport conveyors 1 and 1a are constructed by arranging two conveyors such as rotatable endless belts or chains on the left and right sides.
The veneer conveyors 1 and 1a are installed vertically in two stages and are driven intermittently in relation to detection signals from veneer detectors 2 and 2 that detect the front end or rear end of the veneer 3. That is, each of the conveyors provided on the left and right, and the upper and lower sides, is controlled by an intermittent drive mechanism so as to stop its rotation individually in synchronization with the detection signal of the single plate detectors 2, 2 provided in the middle of the conveyor. Then, the veneers 3 conveyed by the veneer conveyors 1 and 1a of each stage are subjected to ruler placement. In the case of a 3-ply type, this veneer conveyor 1, 1a is installed in two stages, since the target is the front board and the back board, but depending on the means of stacking or the number of stacked boards, etc. It is also possible to set it as above. Also, considering the strength of the veneer, it is desirable to set the interval between the left and right conveyors so that the veneer being conveyed has a bowed shape.

Next, a pair or more veneer holding members 10, 10a are placed between the left and right conveyors, slightly above the upper veneer conveyor 1 and slightly below the lower veneer conveyor 1a. The veneer holding members 10, 10a are arranged parallel to and opposite to the veneer conveyors 1, 1a, and are stopped on the veneer conveyors of each stage by associating them with a clamping mechanism A and a reciprocating mechanism B, which will be described later. The structure is such that each veneer is sandwiched between the top and bottom and moved to the unloading side. This veneer holding member 1
The length of 0 and 10a is preferably longer than the length of the veneer to be clamped in the conveying direction (usually corresponding to the width of the veneer) so as not to damage the veneer. In order to improve the adhesion with the veneer, for example, an elastic member such as a sponge may be attached to the veneer contact surface of the upper veneer holding member 10, or at least one of the upper and lower veneer holding members 10 may be attached. , 10a may be provided with a plurality of elastic holding members each consisting of a holding plate 101 and a spring 102 as shown in FIGS. 4a and 4b.

A is a veneer holding member 10, which clamps the veneer on the veneer transport conveyor 1, 1a from above and below, and releases the clamping after the veneer has moved to a predetermined position.
10a, a rack shaft 11 vertically attached to the single plate holding members 10, 10a, a pinion 12 meshing with the rack shaft 11,
A shaft 13 for fixing the pinion 12, the shaft 1
A holding member 1 rotatably supports 3 via a bearing.
4. It further comprises an operating mechanism 15 such as a cylinder that rotates the shaft 13 and moves the veneer holding member up and down. B is a reciprocating mechanism that moves this clamping mechanism A in the transport direction along the guide shaft 16 and moves the clamped veneer to the unloading side, and is a reciprocating mechanism that moves the clamping mechanism A in the transport direction along the guide shaft 16, and rotates a chain, etc. stretched parallel to the transport direction. Member 17
The holding member 14 is connected via an arm 17a, and the veneer pressing member is moved by rotating the rotating member 17 using an actuating mechanism 18 such as a clutch brake or cylinder. Note that 19 indicates a carry-in conveyor and 20 indicates a carry-out conveyor; however, if there is no need to convey the stacked veneers to the next process on the carry-out conveyor 20, a stacking table is placed at the position of the carry-out conveyor. That will happen.

The above is one means of holding a veneer between the veneer holding members 10 and 10a and then moving the veneer holding members 10 and 10a together to move the veneer onto the carry-out conveyor 20. The veneer pressing member is extended toward the unloading conveyor 20 side by more than the length in the conveying direction of the veneer, and the veneer pressing surface of the veneer pressing member is smoothly formed, while the veneer pressing member on the opposite side is extended in the conveying direction. It is also possible to move the veneer clamped on the smooth veneer pressing surface while sliding the veneer. For example, FIG. 5 shows one embodiment in which the unloading side end of the lower veneer presser 10a is extended so as to overlap the unloading conveyor 20, and the veneers held by the movement of the upper veneer presser 10 are It is configured to be sent onto an output conveyor 20.
At this time, it is preferable that the lower veneer pressing member 10a has a smooth veneer pressing surface so that the veneer can easily slide, but a large number of rollers may be provided to make the veneer even more slippery. . On the other hand, on the veneer pressing surface of the upper veneer pressing member that moves the clamped veneer, in order to increase the frictional force contrary to the above, for example, rubber is pasted on the surface of the pressing surface, or needles are implanted on the surface of the pressing surface. and configure it. Note that the clamping mechanism A connected to both the upper and lower veneer holding members 10, 10a only needs to be able to clamp the veneer, so it may be connected to only one of the upper and lower parts depending on the situation.

In FIG. 5, components having the same configuration as those in the first embodiment are designated by the same reference numerals, and their explanations are omitted.

Next, FIGS. 3a to 3c' show examples of changes to the ruler mechanism for aligning the postures of veneers on each veneer transport conveyor 1a, and FIG. A drive mechanism 4 such as a motor and a clutch brake 4a are connected to the single conveyor constituting the conveyor 1, and a control means for intermittently driving the conveyor in relation to the detection signal of the single plate detector 2 is provided.
FIG. 3b shows a device in which a stopper 5 which can be freely extended and retracted is added to the mechanism shown in FIG. 3a. This stopper 5 is provided slightly on the unloading side of the veneer detector 2 in the middle of the conveyor, and is configured to move onto and retract onto the conveyor by actuation of a cylinder 6, and is synchronized with the detection signal of the veneer detector 2. It is possible to bring the veneer whose conveying force has been cut off (not completely stopped due to inertia) into soft contact and to reliably stop the veneer. When the veneer having been rulered as described above is to be sent to the next process, the stopper 5 is recessed from the conveying surface of the conveyor as shown by the broken line.

3c and 3c', another veneer detector 2a is provided in front of the veneer detector 2, and is raised and lowered by a cam 7 etc. to the side of the conveyor, and a cylinder 8.
A ruler-setting device is shown that is equipped with a single-plate receiver 9 that moves back and forth by means of, for example, a ruler. In this device, when the conveyor stops conveying the veneer in synchronization with the detection signal of the veneer detector 2a, the cam 7 is activated to raise the veneer receiver 9 above the veneer conveyance surface of the conveyor to remove the veneer 3. To support. By advancing the veneer receiver 9 itself until the veneer detector 2 detects the edge of the veneer 3, reliable ruler placement is achieved. By conveying the veneer using both the conveyor and the veneer receiver 9 in this way, the veneer is conveyed at high speed until it is detected by the veneer detector 2a, and then at a low speed while being detected by the veneer detector 2. This makes it possible to convey the ruler at variable speeds by moving it at different speeds, allowing highly accurate ruler placement without reducing efficiency. Such variable-speed conveyance can also be performed in the cases shown in FIG. 3a and FIG. It is necessary to provide an intermittent drive device (not shown).

Next, to explain the operation of the apparatus configured as above, the veneer conveyors 1,
When the leading ends of the veneers 3, 3 supplied onto 1a are detected by the veneer detectors 2, 2, they are stopped at a predetermined position, and the upper and lower veneers are aligned.
(See FIGS. 6a and a') Subsequently, the clamping mechanism A is activated to clamp the veneers 3, 3 between the upper and lower veneer pressing members 10, 10a, whereby both veneers are partially restrained. (See FIGS. 6b and b') Next, the veneer holding members 10 and 10a are moved in the conveying direction while maintaining the sandwiched state (see FIGS. 6c and c'), and the unloading conveyor 2
0, the clamping mechanism A is operated again to release the restraint on the veneer, and the unloading conveyor 20 is
The veneers 3, 3 are placed on top. (Fig. 6d,
d') The above is the operating state in the first embodiment (FIGS. 1 and 2), and even if the carry-out conveyor 20 is replaced with the stacking table 21, the basic operation remains the same. However, as shown in FIG. 7, the veneer holding member 1
If both the left and right ends of the veneers 3, 3 that have come off the veneers 0, 10a hang down, it is necessary to provide a pair of left and right veneer supports 22 above the stacking table 21 to support both ends from below. Furthermore, it is necessary to provide an opening/closing mechanism such as a cylinder for opening the veneer receiver 22 outward (in a direction perpendicular to the transport direction). Therefore, as shown in FIGS. 7a to 7d,
The veneers 3, 3 moved onto the stacking table 21 are supported at both ends by the veneer receivers 22, 22 (see FIGS. 7c and c'), and are held in place by the veneer holding members 10, 10a. and release the veneer receivers 22, 22.
When opened outward, the sandwiched veneers 3, 3 fall onto the stacking table 21 and are placed on top of each other.

Next, the third invention (ie, the second device invention) will be explained. In the third invention, a pricking needle is provided protruding from one of the veneer clamping surfaces of a veneer pressing member that clamps a plurality of veneers with rulers drawn out, and a stacking stage is provided on the veneer pressing member. Alternatively, the veneer is associated with a reciprocating mechanism for moving the veneer to the top of the carrying out conveyor, and is further equipped with a veneer peeling mechanism for peeling off the veneer that has reached the top of the stacking table or the carrying out conveyor from the pricking needle. This invention relates to a superposition device. Since this invention achieves the same object as the second invention (first device invention) and has the same basic structure, only the different parts will be explained next. Components having the same configuration in the drawings are denoted by the same reference numerals.

In FIGS. 8 and 9, the veneer clamping surface of the upper veneer holding member 10 is provided with veneer transport conveyors 1, 1.
A plurality of pricking needles 23 having a length capable of pricking the veneers 3, 3 transported by a are provided protruding in the transport direction, and a lower veneer facing these pricking needles 23 is provided. The pricking needle 23 is provided on the upper surface of the presser member 10a.
A groove 24 is formed so that the tip thereof does not come into contact with the lower veneer holding member 10a. (See Figure 11)
The upper veneer holding member 10 is equipped with a veneer peeling mechanism C consisting of a knock-off bar 25 and a cylinder 26, and when the stuck veneers 3, 3 reach the top of the carry-out conveyor 20, the cylinder 21 is activated. The veneers 3, 3 are controlled to be struck down by the veneer contact surface of the knock-off bar 25.

The pricking needle 23 may be provided protruding from either the upper or lower veneer holding member, but in that case, the reciprocating mechanism B and the veneer peeling mechanism C are provided with the veneer holding member from which the pricking needle protrudes. It will be placed on the side. In addition, the veneer peeling mechanism C does not necessarily have to be provided directly on the veneer holding member, but rather pierces the veneer that has reached the top of the stacking table or the carry-out conveyor, such as above the stacking table or the carry-out conveyor, or below the carry-out conveyor. Any position is acceptable as long as it can be peeled off from the needle. For example, the broken line in FIG. 10 shows an example in which the conveyor 20 is movable upwardly and downwardly, and in FIG. An example of lowering and peeling off is shown.

In the device configured as described above, after the ruler removal is completed, the clamping mechanism A is activated and the first
As shown in FIG.
Stick 3. And when the veneer is stuck and held,
The lower veneer pressing member 10a is moved downward, and the upper veneer pressing member 10 is further moved to above the carry-out conveyor 20 as shown in FIG. When the veneers 3, 3 stop on the carry-out conveyor 20, the cylinder 26 of the peeling mechanism C is activated, and the veneers are peeled off from the pricking needle 23 by the drop-off bar 25, and the whole veneers are superimposed on the carry-out conveyor 20. The goal is to complete the process.

In this way, in the present invention, since the pricking needle is provided protruding from the veneer pressing surface of the veneer pressing member, the plurality of veneers do not shift during movement, and the final overlay accuracy is improved. The effect is extremely high.

14 and 15 show an invention characterized in that the puncture needle is provided protruding from a rotating member, and the rotating member is rotatably wound around one of the upper and lower veneer pressing members. , that is, an embodiment of the fourth invention (third device invention) is shown.

Reference numeral 27 denotes a rotating member such as a belt or chain, and a large number of pricking needles 23 are protruded from the outer circumferential surface (veneer clamping surface) at appropriate pitches in the conveying direction. Reference numeral 10 denotes an upper veneer holding member whose total length is more than twice the length of the veneer 3 in the conveying direction.Rotating wheels 28 are provided at both ends, and the rotating member 27 rotatably winds the member. It's being passed around. It is installed above the veneer transport conveyor 1 and the discharge conveyor 20 so as to cover approximately 1/2 each of the conveyors, and is configured to be raised and lowered by an operating mechanism 30. Reference numeral 29 represents an intermittent drive device that drives the rotary member 27 intermittently, and 25 represents a drop bar that is raised and lowered by the cylinder 26.

In such a device, a veneer conveyor 1,
The veneers 3, 3 stopped on 1a are held by the veneer holding member 1.
0, 10a, and when the veneers 3, 3 are stuck to the puncture needle 23 protruding from the rotary member 27, the clamping mechanism A (actuating mechanism 30, 15) is actuated to remove the clamping mechanism. is released, and then the rotating member 27 is rotated in the conveying direction (counterclockwise in the figure) to move the veneers 3, 3 partially restrained onto the conveyor 20. Then, as shown in FIG. 15, the rotation is stopped when it has completely passed onto the carry-out conveyor 20, and then the drop-off bar 25
is activated, the veneers 3, 3 can be peeled off from the puncture needle 23, and the entire surfaces can be stacked on top of each other on the carry-out conveyor 20. Therefore, as in the case of the third device invention, the clamped state can be reliably maintained and moved, and the overlapping accuracy can be extremely high.

The rotating member 27 with the puncture needle 23 protruding therefrom may be provided on the lower veneer holding member 10a, and the design of the clamping mechanism A, the veneer peeling mechanism C, etc. may be changed accordingly. Can be done.

Finally, the fifth invention (i.e. the fourth device invention)
I will explain about it. In addition to the above-mentioned basic configuration, the present invention provides a means for moving a plurality of veneers held between veneer pressing members onto a stacking table provided on the unloading side of a veneer transport conveyor or onto an unloading conveyor. This device is characterized in that a rotating member is rotatably wound around the pressing member.

16 to 18 show an embodiment of the fifth invention, in which a pair of upper and lower veneer pressing members 10 and 10a to which a clamping mechanism A is connected is provided, and the upper veneer pressing member 10 is rotates a rotating member 27' such as a belt driven by an intermittent drive mechanism 29', while the lower veneer pressing member 10a smooths its veneer pressing surface so that the veneer can easily slide. Form. The sliding member 27' can be provided on either the upper side, the lower side, or both of the veneer holding members, but in order to further increase the conveying force of the veneer, it is necessary to
A roller 3 equipped with a spring 31 as shown in Fig. 9
It is preferable to provide a large number of rollers 2 on the back surface of the rotating member 27', and in the case of a veneer holding member that does not include the rotating member 27', a large number of rollers are provided to make the veneer pressing surface easier to slide. It is also good to wind a belt that can be freely rotated.

The veneer holding members 10, 10a as described above are used to hold the veneer 3, which is stopped on the veneer transport conveyor 1, 1a.
Since the veneer 3 is held between the top and bottom and sent out in the conveying direction while being partially restrained, it is preferable to design it to be slightly longer than the length of the veneer conveyor 1, 1a in the conveying direction. It is better to extend the veneer slightly toward the delivery side than the tip, as this will ensure more reliable delivery of the veneer.

Next, in Figures 20 to 22, the veneer is placed on the stacking table 21.
Another embodiment is shown in which the veneer pressing members 10, 10a,
Descriptions of structures similar to those described above, such as the clamping mechanism A and the rotating member 27', will be omitted. 22 is the deposition table 2
The left and right ends of the veneers 3, 3 sent onto the veneer 1 are supported from below, and during stacking, the veneers 3, 3 are configured to open outward (in a direction perpendicular to the transport direction) by an opening/closing mechanism such as a cylinder. The veneer receiver 33 is located approximately in the center of the veneer receivers 22, 22, and is a veneer receiver bar that supports the central part of the veneers 3, 3 that are sent in the same way as the veneer receiver 22, By driving the rotating member 34 connected via the arm 34a with the actuating mechanism 34, it is provided to be able to freely reciprocate along a guide shaft 36 disposed in the transport direction.
As shown in FIG. 21, when the rotating member 27' partially restrains the veneers 3, 3 and carries them out, it advances onto the stacking table 21, and after the transfer is completed, it retreats and removes the veneers 3, 3. , 3 to deposit the actuating mechanism 3.
5 is controlled. A plurality of these single-plate receiving bars 33 may be provided, and the design of the movement mechanism for advancing and retracting them may be changed as appropriate.

In the veneer stacking apparatus configured as described above, the veneers 3, 3, which are rulered on the veneer transport conveyors 1, 1a, are held by the upper and lower veneer pressing members 10,
10a, and is partially restrained in the conveyance direction, and the restrained state is maintained by rotation of the rotary member 27' provided on at least one of the veneer pressing members 10, 10a. The veneers 3, 3 are conveyed onto the carry-out conveyor 20 or the stacking table 21, and the veneers 3, 3 are completely superimposed.

Therefore, the restrained veneers are conveyed without shifting due to frictional force, making it possible to improve the accuracy of overlapping.

Since the method and device of the present invention are configured as described above, the operating stroke of the veneer pressing member in the vertical clamping operation can be shortened, speeding up the clamping process and simplifying the device. can be achieved. In addition, after partially overlapping by the clamping operation, the veneers are moved in the transport direction while maintaining that state and the entire veneer is overlapped on the stacking table or unloading conveyor, so there are two steps: the overlapping process and the moving process. Processes can be performed simultaneously and rapid veneer processing can be achieved.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and FIG.
2 is a plan view of the first embodiment of the device invention, FIG.
Figure c' is an explanatory diagram showing the ruler ejecting mechanism, Figures 4a and b
5 is a side view showing a modified example of the veneer pressing member, FIG. 5 is a longitudinal sectional view of another embodiment of the first device invention, FIGS. 6a to 6d, and 7a to 7 Figure d is a front view showing the operating state, Figures 6a' to 6d' and 7
Figures a' to 7d' are cross-sectional views, Figure 8 is a plan view of the first embodiment of the second device invention, Figure 9 is a Y-Y cross-sectional view of the same plane view, and Figure 10. 11 is an enlarged view of the main part of the veneer holding member in FIG. 9, FIGS. 12 and 13 are front views showing the operating state, and FIGS. 14 and 15 are sectional views showing the operating state. Cross-sectional view of the first embodiment according to the third device invention, No. 16
The figure is a plan view of the first embodiment according to the fourth device invention,
Figure 17 is a Z-Z sectional view of the same plan view,
FIG. 8 is a sectional view showing the same operating state, FIG. 19 is a side view showing a modified example of the veneer presser member in the same invention,
FIGS. 20 and 21 are sectional views of another embodiment according to the same invention, and FIG. 22 is a front view of the same. A... Clamping mechanism, B... Reciprocating mechanism, C...
Veneer peeling mechanism, 1, 1a... Veneer conveyor, 2, 2a... Veneer detector, 3... Veneer, 1
0, 10a...Single plate holding member, 19...Carry-in conveyor, 20...Carry-out conveyor, 21...Piling table,
22...Single plate receiver, 23...Punching needle, 25...Drop-off bar, 27, 27'...Rotating member, 33
...Single plate receiving bar.

Claims (1)

[Scope of Claims] 1. A plurality of veneers transported by a veneer conveyor made up of a veneer conveyor consisting of at least two conveyors on the left and right, which are vertically installed in multiple stages, are transported at the front end or the rear end. Align and stop the veneers and place the rulers on each veneer, and at the same time, place the veneers at an appropriate position between the left and right conveyors by sandwiching them from above and below almost parallel to the conveying direction to partially overlap each veneer, Furthermore, the veneers are moved in the conveyance direction while maintaining a partially overlapping state of the veneers, and the entire surface of the veneers is overlaid on a stacking table provided on the unloading side of the veneer conveyor or on an unloading conveyor. How to stack veneers. 2 A veneer transport conveyor consisting of at least two conveyors arranged on the left and right that stop in conjunction with a veneer detector that detects the front end or rear end of the veneer being transported is installed in multiple stages in the vertical direction, and A plurality of veneers stopped on the plurality of veneer conveyors are conveyed between the left and right conveyors, above the top veneer conveyor and below the bottom veneer conveyor. A veneer pressing member is provided which holds the veneer from above and below in a direction substantially parallel to the direction, and at least one of the upper and lower veneer pressing members is provided with a veneer pressing member that is placed on a stacking table provided on the unloading side of the veneer transport conveyor or on the unloading conveyor. A veneer stacking device characterized in that it is associated with a reciprocating mechanism for moving a plate pressing member. 3 A veneer transport conveyor consisting of at least two conveyors arranged on the left and right that stop in relation to a veneer detector that detects the front end or rear end of the veneer being transported is installed in multiple stages in the vertical direction, and A plurality of veneers stopped on the plurality of veneer conveyors are conveyed between the left and right conveyors, above the top veneer conveyor and below the bottom veneer conveyor. A veneer pressing member that clamps the veneer from above and below in a direction substantially parallel to the direction, and a veneer clamping surface of one of the veneer pressing members has a length capable of sticking the plurality of veneers. A plurality of needles are provided protruding in the conveying direction, and the pricking needles are pushed onto the veneer pressing member on the side on which the pricking needles are protruded, and onto a stacking table or an ejecting conveyor provided on the unloading side of the veneer conveyor. A reciprocating mechanism for moving the veneer pressing member on the protruding side is associated, and a veneer peeling mechanism is further provided for peeling off the veneer that has reached the upper part of the stacking table or the carry-out conveyor from the pricking needle. Features a veneer stacking device. 4 A veneer transport conveyor consisting of at least two conveyors arranged on the left and right that stop in conjunction with a veneer detector that detects the front end or rear end of the veneer being transported is installed in multiple stages in the vertical direction, and A plurality of veneers stopped on the plurality of veneer conveyors are conveyed between the left and right conveyors, above the top veneer conveyor and below the bottom veneer conveyor. A veneer pressing member is provided which holds the veneer from above and below in a direction substantially parallel to the direction, the plurality of veneers are stuck to one of the veneer pressing members, and the veneer is placed on the discharge side of the veneer conveyor. A rotary member having a plurality of puncture needles protruding in the transport direction is rotatably wound so that the needles can be moved to the top of the stacking table or carrying-out conveyor provided. A veneer stacking device characterized by being equipped with a veneer peeling mechanism for peeling off the veneer from a puncture needle. 5 A veneer transport conveyor consisting of at least two conveyors arranged on the left and right that stop in relation to a veneer detector that detects the front end or rear end of the veneer being transported is installed in multiple stages in the vertical direction, and A plurality of veneers stopped on the plurality of veneer conveyors are conveyed between the left and right conveyors, above the top veneer conveyor and below the bottom veneer conveyor. A veneer pressing member is provided which holds the veneer from above and below in a direction substantially parallel to the direction, and the veneer is further placed on at least one of the veneer pressing members until it reaches the top of a stacking table or an unloading conveyor provided on the unloading side of the veneer transport conveyor. A veneer stacking device characterized in that a rotating member for moving a plurality of veneers held by a pressing member is rotatably wound.