JPS61188347A - Transfer device for grouping successive veneers having predetermined or uniform length - Google Patents

Abstract

PURPOSE:To make it possible to automatically sort veneers, right and left, which are successively transferred, into groups of veneers having predetermined lengths, by providing a laterally moving changeable member for obliquely moving veneers toward the guide surfaces of cut face guide mechanisms on both sides of a transfer conveyor and for making the cut face of each veneer abut against each of the guide surfaces. CONSTITUTION:There are provided cut face line-up mechanisms 4, 4a for lining up both cut faces of veneers A at suitable positions on a transfer conveyor 1. Right and left cut face guide mechanisms 10, 10a are laid on both sides of the conveyor 1 downstream of the line-up mechanisms 4, 4a, with a space therebetween while is wider than the fibrouswise width of the veneers A. Right and left laterally moving members 16, 16a each vertically moving between the acting position where the veneers A is obliquely moved toward each guide surface 14, 14a and then upper waiting position, are arranged at substantially the same position in the transfer direction of the transfer conveyor 1 inward of the right and left cut face guide mechanisms 10, 10a. These laterally moving members 16, 16a are alternately changed over to vertically move at every predetermined distance in the transfer direction by a lift control mechanism 24, thereby it is possible to sort, right and left, and veneers which are successively transferred, into groups of veneers having predetermined lengths.

Description

[Detailed Description of the Invention] [Object of the Invention] This invention involves continuous cutting from the core of the log using a veneer lace, cutting and removing defective parts using a sized and fixed size clipper, and subjecting the wood to a tenderizing process. Sorting is a device that transports continuous sized or fixed-length veneers with almost no space between them in the direction perpendicular to the fibers, sorting them into groups, and sorting these veneers in the direction of transport. The group of veneers of a predetermined size or the group of veneers shorter than a predetermined size are sorted by shifting their positions to the left and right, and this sorting makes it easy to detect groups of veneers and provide spacing between groups of veneers, and also to separate groups of veneers. By providing a space between them, it is possible to perform reliable and trouble-free stacking and other processing of these veneers in groups.

(Structure of the Invention) The present invention will be described with reference to an embodiment shown in the drawings. The conveyor 1 is formed by stretching a plurality of endless bands around front and rear rotating wheels 2.2a, etc., and the axis of the rotating wheel 2 is The conveyor 1 is rotationally driven by a drive mechanism 3 such as a motor and runs at a predetermined speed in the conveyance direction F shown by the arrow in the figure.The conveyor 1 is connected to a veneer lace line (not shown), etc., and the veneer lace cuts A continuous sized or regular length veneer A is transported in a direction perpendicular to the fibers, after which the defective parts have been cut and removed using a clipper, and the veneer A has been subjected to a tenderizing treatment, etc., so that there is not much space between the front and back. be.

The end face alignment mechanisms 4 and 4a are arranged at appropriate positions on the conveyor 1 (in the embodiment, near the entrance of the conveyor 1), and are mounted on rotary wheels 5.5 attached to a shaft in the vertical direction.
a, rotating wheels 6, 6a and endless bands 8, 8 on rotating wheels 1, 1a;
A is stretched, and the running path of the endless bands 8, 8a between the rotating wheels 5, 5a and the rotating wheel 6.6a is set parallel to the conveying direction F, and the running path interval is set almost equal to the width W of the veneer A in the fiber direction. The endless bands 8, 8 between the rotating wheels 6, 6a and the rotating wheels 7, 78
A is formed so that the distance between the running paths becomes gradually wider toward the carrying-in side, and the rotating wheel 5. Drive mechanisms 9, 9a such as motors that rotationally drive the shafts of Sa cause the endless strips 8, 8a to travel in the directions shown by the arrows in the figure at approximately the same speed as the conveyor 1, and the veneers conveyed by the conveyor 1. This is to correct the .DELTA. so that its both end surfaces Aa, , A, and b are approximately aligned in a straight line.

The end surface guide mechanism 10.10a is the end surface alignment mechanism 4.4.
The front and rear rotating wheels 11. An endless band 13.13a is stretched between Ila and the rotary wheels 12, 128, and the inside of the opposing endless band 13.13a is attached to both end faces Aa of the veneer A.
.

Atl guide surface 14,148, each guide surface 14.14
a is set almost parallel to the conveyance direction F, and the interval is set to be somewhat wider than the width W in the fiber direction of the veneer A, and each endless band 13, 13a rotationally drives the shaft of a rotary wheel 11, 118. A drive mechanism 15.15a such as a motor causes the running direction on the guide surface 14.148 to run in the direction indicated by the arrow, which is the same as the conveyance direction, and at the same speed as the conveyor 1. The end surface Aa and the end surface Ab of the endless band 13a are respectively guided by the guide surface 14a of the endless band 13a.

The width shifting members 16 and 16a each have a butt surface guide mechanism 1.
0.10a, and are arranged on the left and right sides above the conveyor 1. For example, as in the embodiment, a rotating disk is used, and the swing rods 18, 18a are connected to one end of the swinging rods 18, 18a via shafts 17, 178, respectively. The direction of conveyance direction F and each end surface guide a structure 10
．． It is rotatably supported in an inclined manner to which a component force in the direction of 10a can be applied, and is rotationally driven by a drive mechanism 19.19a such as a motor. The swinging rods 18, 18a are fulcrum shafts 20.
, 20a, and the other end is connected to the rod 22, 22a of the hydraulic cylinder 21.
The veneer 16a is moved up and down between an operating position where it contacts the surface of the veneer A conveyed by the conveyor 1 and an upper standby position where it does not come into contact with the veneer A. Each width member 16. le
When a is in the operating position, the veneer A is guided by the respective butt surface guide mechanisms 10 by contact rotation and inclination with respect to each veneer A.
．． Each width shifting member 16.1 is moved diagonally in the direction of 10a.
6a are arranged so that their operating positions are approximately at the same location in the direction of conveyance F, and when the width shifting member 16 is in its operating position, it rotates in contact with the veneer A and tilts it so that the veneer A is moved toward the butt end surface. The width shifting member 16a is moved obliquely in the direction of the guide mechanism 10 and brought into contact with the butt end surface Aa of the width shifting member 16a against the guide surface 14.
When in its operating position, the veneer A is rotated in contact with the veneer A and tilted to move the veneer obliquely in the direction of the butt end surface guide mechanism 10a to bring the end surface Ab into contact with the guide surface 14a. Note that the rotary wheel 23 is disposed opposite to each of the width shifting members 16, 16a, sandwiching the conveying surface of the conveyor 1.
In the embodiment, the width shifting member 16.16a is explained as a rotating disk, but it can be similarly implemented as an endless band, etc. Any material may be used as long as it can be tilted in the direction of the guide surface 14° 14a.

The elevation control mechanism 24 controls vertical movement by alternately switching the centering members 16, 168 every predetermined dimension in the transport direction F of the veneer A transported by the transport conveyor 1. The veneer A is divided into a veneer group B having a length corresponding to a predetermined size and a veneer group Ba having a shorter length by alternately switching and vertically moving the shifting members 16° and 16a.

(FIGS. 4 and 5) When stacking veneers A as a group, this predetermined dimension is appropriately set depending on the size of the deposition field in the direction orthogonal to 41i11E of veneers A.

For example, as in the embodiment shown in FIG. 1, the elevation control mechanism 24 connects veneer detectors 25, 25a at predetermined distances from the action positions of the width shifting members 16, 168, and veneer detectors 25, 25a at a width The veneer detector 25a is placed in a position where it detects only the veneer A that has been pulled towards the buttside guide mechanism 10 by the puller member 16.
They are each installed at a position to detect only the veneer A that has been moved towards 0a, and the detection signal from the veneer detector 25 is sent to the controller 2.
6, the operating mechanism 21 such as a solenoid valve of the fluid pressure cylinder 21 and the operating mechanism 2 such as a solenoid valve of the fluid pressure cylinder 21a.
7a, the fluid pressure cylinder 21 raises the width adjustment member 16 from the operating position to the standby position, and at the same time, the fluid pressure cylinder 21a lowers the width adjustment member 16a from the standby position to the operation position, and the single plate detector The detection signal from 25a is also sent to each operating mechanism 27 via the controller 26.
．． 27a, and in response to this detection signal, the width adjustment member 16a is raised from the operating position to the standby position, and at the same time, the width adjustment member 16 is lowered from the standby position to the operation position. 16a is alternately switched and moved up and down every time a predetermined size of the veneer A is conveyed by the conveyor 1.

The embodiment shown in FIG. 1 is a case in which a clipper is used to cut a cumulative length corresponding to a predetermined size, and in this case, as shown in FIG. The veneers are alternately sorted into a group B of veneers, which are moved toward the guide mechanism 10, and a group of veneers 3-1, whose end surfaces are shifted toward the end surface guide mechanism 10a, by the veneer member 16a.

If the veneer A conveyed by the conveyor 1 has not been cut to a cumulative length by the clipper, when the front end of the veneer group reaches the position of the veneer detector 25 or the veneer detector 25a, the width adjustment is performed The intrusion edge of the veneer A does not always coincide with the part of the member 16 or the width member 16a, and the front end or middle part of the veneer A is often located, and in such a case, The veneer A has already been moved to one side or is in the process of being moved to the other side, and it is necessary to move it to the opposite side. There may be cases where it is not possible to completely move the object to the opposite side. The embodiments shown in FIGS. 3, 6, and 7 can cope with such cases, and the left and right drawstring members 16.1
An intermediate gathering member 16 is placed on the upper side of each of the conveyance direction F of 6a.
, 168 and a set of similar configurations with their respective operating mechanisms (
Example) or multiple sets of drawstring members 16-1.16a-1
and each swinging rod 18-1.18a-1, a fluid pressure cylinder 21-1.21a-1, etc., and the fluid pressure cylinder 21-1.21a-1 has an operating mechanism 27-1.27a.
-1, the width adjustment member 16-1 is configured to operate simultaneously with the width adjustment member 16, and the width adjustment member 16a-1 is configured to operate simultaneously and similarly with the width adjustment member 16a, for example, as shown in FIG. When the front end of the veneer A reaches the position of the veneer detector 25 in This deck A can be moved toward the butt surface guide mechanism 108 by the width shifting member 16-1. In this way, when the front end of the veneer group reaches the position of the veneer detector, if the rear end of veneer A does not match the position of the width shifting member, the veneer A at the position of the width shifting member Since the veneer group is moved to the opposite side, the veneer group that has already been moved to the opposite side becomes a veneer group 13a which is less than the predetermined size as shown in FIG. Because it is shorter than the other two, it can be deposited in the depositing area without any trouble, and since the structure including a plurality of sets of width-shifting members each contributes to width-shifting, there is also the effect that width-shifting can be carried out more reliably.

The embodiment not shown in FIGS. 6 and 7 shows the second invention, and includes two sets of variable speed conveyors 28, 28a adjacent to the downstream side of the conveyor 1 in the conveying direction F, and these variable speed conveyors 2a and 2aa are veneer groups B that are sorted into groups and transported by the transport conveyor 1.

The receiver picks up B-i or 3a, increases the interval between successive veneer groups, and sends it to the next conveyor. The two sets of variable speed conveyors 28, 288 are each formed by a pair of upper and lower endless belts (example) or a plurality of endless belts stretched over rotary wheels, and their respective inlet ends are made to substantially coincide with the conveyance direction F. and a longer conveyance path (preferably a conveyance path about twice as long) each having a predetermined size. The two sets of variable speed conveyors 28, 288 are the end face guide mechanism 10.1.
For example, the variable speed conveyor 28 is designed to be able to pinch and convey only the group of veneers B and Ba that have been brought together to one side of the butt surface guide mechanism 10, so that only the groups of veneers B and Ba that have been brought together to one side of the butt surface guide mechanism 10 can be held and conveyed. The variable speed conveyor 28a is connected to the end face guide mechanism 10.
The configuration is such that only the veneer group B-1 brought together at a side can be held and conveyed. Also these variable speed conveyors 28.288
is a drive consisting of a motor, transmission, etc. that rotates the shaft of a rotary wheel with an endless belt stretched over it! The LJ mechanism 29, 29a is configured to be able to switch between low-speed travel, which is the same speed as the transport conveyor 1, and high-speed travel, which is somewhat faster. The conveying body 30 provided between the two speed change conveyors 28, 28a is formed by a freely rotating roller or a bar with a small friction coefficient, and each speed change conveyor 28, 28a carries a group of veneers B, Ba, 8.
When the veneer 1 is arranged so that only the butt end of the veneer 1 is clamped and conveyed, the other butt ends that are not clamped are supported to help the group of veneers run smoothly.

The speed change control 11a structure 31.31a controls each speed change conveyor 28.
．． The speed change control mechanism 31 detects the group of veneers being held and conveyed by the speed change conveyor 28a and controls the speed switching between low speed and high speed travel. It consists of a detector 32 placed at the end of the wood, a detector 33 placed at an appropriate distance further down from the detector 32, and a controller 34 that connects these detectors and the drive mechanism 29. The front end of the veneer group B or 3a- brought together by the surface guide mechanism 10 is detected and the signal is transmitted to the drive 1jJ mechanism 29 via the controller 34, thereby switching the speed change conveyor 28 from low speed running to high speed running. , the detector 33 detects the front end of the veneer group B or 13a, transmits the signal to the drive mechanism 29 via the controller 34, and controls the variable speed conveyor 28 to be switched from high speed running to low speed running.

The speed change controller @ 31a is constructed in the same manner as the speed change control wJ mechanism 31 and controls the speed change conveyor 28a, and is controlled by a detector 32a placed at a distance of approximately a predetermined distance from the input end of the speed change conveyor 28a to the downstream side. End guide machine lI41
Detecting the front end of the veneer group B-1 that has been moved toward 0a, transmitting the signal to the drive mechanism 29a via the controller 34a,
The variable speed conveyor 28a is switched from low-speed running to high-speed running, and the detection signal of the veneer group B-1 by the detector 33a arranged at an appropriate distance below the detector 32a is sent to the controller 34.
a to the drive mechanism 29a, and the speed change conveyor 28
A is controlled to switch from high-speed running to low-speed running.

Since the speed change control mechanisms 31 and 31a are configured in this manner, the veneer group B and the veneer group B-1, which have been brought together and transferred from the transport conveyor 1 to the respective speed change conveyors 28 and 28a, are, for example, shown in FIG. As shown in FIG. 3, the veneer group B that was first transferred to the variable speed conveyor 28 travels at the same low speed as the conveyor 1 until its front end reaches the position of the detector 32.
is arranged at a distance of approximately a predetermined distance from the input end of the variable speed conveyor 28, so when the veneer group B is transferred from the conveyor 1 to the variable speed conveyor, there is no speed difference and no trouble occurs. After passing 32, the speed change conveyor 2
8 is switched to high speed, and then the veneer group B-i transferred to the high-speed conveyor 28a runs at a low speed until its front end reaches the position of the indicator 32a, so the veneer group B and the veneer group B
-1, a desired distance E in the conveying direction can be provided. This desired interval 111E is appropriately set depending on the speed difference between high speed and low speed travel of each variable speed conveyor 28, 28a and the arrangement position of the detectors 33, 33a.

Similarly, a desired interval E is provided between the veneer group B-1 and the next veneer group B, and these veneer groups are placed at the lower end of each speed conveyor 28, 28a with the interval E left open. It is transferred to a deposition site or the like via a conveyor 35 disposed on the side.

(Effects of the Invention) As described above, the present invention is equipped with left and right butt surface guide mechanisms on both sides of a conveyor that conveys continuous sized or fixed-length veneers at an interval wider than the width of the veneer in the fiber direction. , the guide surface of each butt surface guide mechanism is provided with left and right width shifting members for moving the veneer obliquely and bringing the butt surface of the veneer into contact with each guide surface, and these width shifting members are arranged alternately for each predetermined dimension. Since it is configured to switch between veneers of a predetermined size or smaller, even if sized or fixed-length veneers are conveyed in a continuous state with almost no gaps, they can be sorted left and right as groups of veneers of a predetermined size or smaller. By sorting the veneers, groups of veneers can be detected easily and reliably, and the stacking of each group onto the pile pile can be carried out smoothly and reliably.It can also be carried out without the need for a cutting signal from a clipper, and the veneers can be easily and reliably detected. Even if the veneer is transported at high speed, it can be handled, and since the veneer group is sorted into predetermined size and smaller size, there is no problem such as the veneer group protruding from the MM pile and causing trouble. As in the second invention, it becomes possible to easily provide the intervals between the veneer groups, and by increasing the interval between the veneer groups, the stacking of the veneer groups on the pile pile, etc. can be performed more reliably and smoothly. It has the following effects.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, FIG. 1 is a plan view of the first invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a plan view showing another embodiment of the first invention. 4 and 5 are explanatory diagrams showing the state of veneer groups sorted according to the first invention, FIG. 6 is a plan view of the second invention, and FIG. 7 is a side view of FIG. 6. 1... Conveyor conveyor 4, 4a... End surface alignment mechanism 10, 108... End surface guide mechanism 14, 14
a... Guide surface 16.16a, 16-1.16a-1
...Drawing member 24...Elevation control machine @ 2
8, 2, 8a... Speed change conveyor 31. 31a... Speed change control m+ mechanism A... Veneer Aa, Ab... End surface B, B a, B-1-... Veneer group D.・・・
Interval between guide surfaces E: Interval between veneer groups F: Conveying direction L: Predetermined dimension W: Width of the veneer in the fiber direction

Claims (4)

[Claims] (1) A conveyor that conveys continuous sized or fixed-length veneers at a predetermined speed in a direction perpendicular to the fibers is provided with a butt face alignment mechanism that aligns both end faces of the veneers at appropriate positions, and the end faces are aligned. Left and right butt surface guide mechanisms are provided on both sides of the lower side of the mechanism, and the guide surfaces are set approximately parallel to the conveying direction of the conveyor, and the interval between the guide surfaces is set somewhat wider than the width of the veneer in the fiber direction. Inside the butt surface guide mechanism, there are left and right width shifting members that move up and down between an operating position that obliquely moves the veneer toward each guide surface at approximately the same location in the conveyance direction of the conveyor and an upper standby position. Continuous sized veneers or fixed-length veneers, characterized in that they are equipped with a lifting control mechanism that alternately switches and moves the left and right width shifting members up and down for each predetermined dimension in the conveyance direction to divide them into groups of veneers. A group sorting and conveying device for veneers. (2) Sorting into groups of continuous sized or fixed-length veneers as described in claim (1), which is provided with one or more sets of width adjustment members on the upper side of each of the left and right width adjustment members. Conveyance device. (3) A conveyor that conveys continuous sized or fixed-length veneers at a predetermined speed in a direction perpendicular to the fibers is provided with a butt-end surface alignment mechanism that aligns both end surfaces of the veneers at appropriate positions, and the end surfaces are aligned. Left and right butt surface guide mechanisms are provided on both sides of the lower side of the mechanism, and the guide surfaces are set approximately parallel to the conveying direction of the conveyor, and the interval between the guide surfaces is set somewhat wider than the width of the veneer in the fiber direction. Inside the butt surface guide mechanism, there are left and right width shifting members that move up and down between an operating position that obliquely moves the veneer toward each guide surface at approximately the same location in the conveyance direction of the conveyor and an upper standby position. and an elevation control mechanism that alternately switches the left and right width shifting members for each predetermined dimension in the conveyance direction and moves them up and down to separate them into groups of veneers, and the carry-in end is located close to the lower side of the conveyor. Two sets having conveyance paths that are substantially coincident in direction and longer than the predetermined dimension, are capable of alternately conveying each veneer group, and have a conveyance speed that can be switched between a low speed that is the same as that of the conveyor and a high speed that is somewhat faster than this. A continuous conveyor system characterized by comprising a variable speed conveyor, and a variable speed control mechanism that causes each of the two sets of variable speed conveyors to run at a low speed until the group of veneers is completely transferred from the transport conveyor, and thereafter switches to high speed running. A device for sorting and conveying sized or fixed-sized veneers by group. (4) Sorting into groups of continuous sized or fixed-length veneers as described in claim (3), which is provided with one or more sets of width adjustment members on the upper side of each of the left and right width adjustment members. Conveyance device.