JPS5932381B2 - High-speed automatic loading device for fixed length veneers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention is a high-speed automatic loading method that stacks fixed-length veneers that are cut by a high-speed veneer clipper and is transported at high speed without damaging them, without leaving any space between successive veneers. Regarding equipment.

Conventional means for supporting and transporting veneers using a pricking conveyor equipped with needle-like objects, releasing the veneers from the pricking of the needle-like objects, and stacking the veneers is to use needles along the entire length of the veneer in the conveying direction. The method was to stick a needle-like object only to the front end of the veneer.

The former sticks many needle-like objects along the entire length of the veneer, so the only way to do this is to use a bar that spans the entire length of the veneer to knock them off and deposit them, which can damage the veneer. Also, the latter has the disadvantage of being unsuitable for high-speed conveyance, since the latter only sticks at the front edge, so if the veneer is long in the conveyance direction, such as a regular length veneer, the rear edge will hang down and hit the pile. However, there was a drawback that the veneer was torn during transportation. This invention was developed to overcome these drawbacks of the conventional methods. To explain this invention based on the drawings, the conveyor 1 is connected to a high-speed veneer clipper, and the position of the rotary wheel 2 on which the endless belt is stretched is the end portion 1'. The device (not shown) travels at a constant speed in the conveyance direction F, and conveys the fixed length veneer A in a direction perpendicular to its fibers. Above the conveyor 1, there is a front end pinning conveyor 3 and a rear end pinning conveyor 3, which stably support the fixed length veneer A conveyed by the transport conveyor 1 and transfer it to the rear of the end portion 1'. Two sets of pricking conveyors of conveyor 4 are arranged in parallel.

These two sets of pricking conveyors 3 and 4 each have a large number of needle-shaped bodies N attached to the surface of two endless strips, and the front end pricking conveyor 3 has a front end that becomes its starting end/portion 3'. The rear end sticking conveyor 4 connects the rotary wheel 5, which is the front rotary wheel 5' which is the starting end 4', and the rear rotary wheel 6 which is the distal end 3'' of the rotary wheel 5, and the rear rotary wheel 6 which is the distal end 3'' of the rotary wheel 5. The fixed length veneer A conveyed by the conveyor 1 can be stuck to the running path below each of the sticking conveyors 3 and 4. , starting end 3' of each pricking conveyor 3, 4
, 4' are intertwined with the end portion V of the carrying-in conveyor 1, and the needle-shaped bodies N are inserted into the veneer by pressing the back surface of the endless band of each pricking conveyor into this intertwined part. A pressing body 7 for the front end and a pressing body 7 for the rear end are respectively provided. Each pressing body 7, 7' is reciprocated between the positions shown by the solid line and the dotted line shown in FIG. It is designed to press against the back of the In the embodiment, each of the front rotary wheels 5, 5/ is mounted on the same shaft 9,
Each pricking conveyor 3, 4 is run at the same speed as the transport conveyor 1 by the rotational drive of the shaft 9 (the drive device is not shown), but the starting ends 3', 1 must necessarily be aligned. In short, it is sufficient that a pressing body can be disposed between each starting end and the distal end 1', and the running drive of each pricking conveyor can be selected and adopted as appropriate, such as by a rotary wheel at the rear of each. The end portions 3' and 4 of each of the pricking conveyors 3 and 4 are located seconds behind the end portion 1' of the transport conveyor 1, and the lower running path of each of the pricking conveyors 3 and 4 is open. It is configured to form a conveying surface and allow the veneers to be pricked and conveyed by each pricking conveyor to be dropped and deposited downward, and a detachment body 10 is provided at the distal end 31 of the front end pricking conveyor 3. A detachment body 10 is disposed at the end portion 45 of the rear end sticking conveyor 4, and a rotary wheel 6 at the rear of each detachment body 10, 10 is provided.
, 6', each rotating body 6, 6/
The circumferential surface of each rotating body, which was a human-diameter rotating body, crossed the endless strip running path of each loading conveyor and was stuck to the needle-shaped body N of each sticking conveyor. - The veneer section is designed to be detachable.

The detachable body 10 for the front end is placed rearward (on the lower side in the conveyance direction) than the detachable body 10' for the rear end, and the interval therebetween is approximately the same as the dimension L of the regular length veneer A, or as in the embodiment. Standard size L
The front end and the rear end are released from the stick almost simultaneously or the rear end is released somewhat earlier than the front end, and the front end is bent. The material is dropped onto the pile N in a stable state without causing any damage, and the material is deposited in good condition at all times.

In addition, in order to prevent the detachment body 10 for the rear end as well as the front end stuck to the front end stabbing conveyor 3 from detaching, the detachment body 10' is arranged at a position where it does not cross the running path below the front end stabbing conveyor 3. Set up A veneer detector 12, such as a photoelectric type, for detecting the front end and rear end of the fixed length veneer A being conveyed is installed at the loading conveyor 1. The signal is transmitted via the timer 13 to the actuating mechanism 8 for the front end,
An electric circuit is constructed so that the rear end detection signal is transmitted to the rear end actuating mechanism 81 via a timer 13', and when the front end reaches just below the pressing body 7, the pressing body 7 is moved back and forth. The needle N of the front end pricking conveyor 3 is stuck to the front end, and when the rear end reaches just below the pressing body 7', the pressing body 7' is moved back and forth to remove the needle of the rear end pricking conveyor 4. The time limit of each timer 13, 13/ is set so that the shaped body N is stuck to the rear end.

Since the present invention is configured in this way, the conveyor 1
The front end of the fixed length veneer A conveyed by the veneer detector 12 is first detected by the veneer detector 12, and the pressing body 7 is actuated based on the detection signal, and the front end is transferred to the front end sticking conveyor 3. Then, the rear end is detected, and based on the detection signal, the pressing body 7 is actuated, and the rear end is supported by the rear end pricking conveyor 4, and both of the pricking conveyors By supporting and running the veneers 3 and 4, the fixed length veneer A is transferred beyond the end 1' of the conveyor 1.

When the detachable bodies 10, 10' for the front end and the rear end are arranged at approximately the same interval as the dimension L of the standard length veneer A, each detachable body 10, 10' Almost simultaneously, A is released from the sticks of each needle N and falls downward, forming a pile N.
Stable deposition takes place on top of. Also, both detached bodies 10, 1
If the interval 0' is set to be somewhat larger than the standard size L, the rear end will separate first, so the front end will be deposited on the pile N in a flat state without bending. be done. As described above, this invention is equipped with two sets of pricking compares, one for the front end and the other for the rear end of a fixed-length veneer, so that the fixed-length veneer can be conveyed at high speed with almost no gap between them. Since the front end and the rear end are pricked and transported, even regular-length veneers can be stably transported, and it is possible to stably transport only the front and rear ends. There is no damage to the veneer when the veneer is detached from the needle-shaped body, and since the front end and the rear end are detached from the needle-shaped body almost simultaneously or the rear end is removed somewhat first, the front end is It has various effects such as being able to carry out flat and stable loading without bending or twisting, and has made many contributions to the plywood industry.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an example of the implementation of the present invention, and FIG. 1 is a side view;
FIG. 2 is a plan view of FIG. 1. 1...Conveyor conveyor, V...End part,
3... Front end sticking conveyor, 4... Rear end sticking conveyor, 3', 4'... Starting end, 3',
41... End part, 7,7t... Pressing body, 8,8ζ... Actuation mechanism, 10,10t...
・Detachment body, 12...Single plate detector, A...
・Standard length veneer, N... Needle-shaped body.

Claims (1)

[Claims] 1 Above a constant-speed transport conveyor that transports the veneer in a direction perpendicular to its fibers, there are two sets of transport conveyors each running at the same speed and each having two endless strips with a large number of needle-shaped bodies attached to the surface. The front end sticking conveyor and the rear end sticking conveyor are installed side by side.
The starting end of each of the pricking conveyors is intertwined with the end of the transport conveyor, and the back surface of the endless band of each of the pricking conveyors is pressed against the intertwined part to form a veneer running on the transport conveyor. A pressing body for sticking the needle-shaped body is disposed, and the end portion of each of the sticking conveyors is positioned rearward from the end portion of the conveyor to form a conveyance surface with an open running path below, At the end of each pricking conveyor, there is a detachment body that releases the veneer stuck on each pricking conveyor, and the detachment body of the front end pricking conveyor is located behind the detachment body of the rear end pricking conveyor. and units arranged at intervals that are approximately the same as the standard size or somewhat larger than the standard size, and that detect the front and rear ends of the standard size veneer and emit a signal at the conveyor. A board detector is provided, and each of the pressing bodies is actuated based on the detection signal of the veneer detector, so that the needle-shaped body of the front end sticking conveyor is attached to the front end of the fixed-length veneer to the rear end. The needle-shaped bodies of the rear-end stabbing conveyor are respectively pierced, and the fixed-length veneer is supported and conveyed by the stabbing and the running of both stabbing conveyors, and the needle-shaped bodies are pierced at the positions of the respective detached bodies. A high-speed automatic loading device for fixed length veneers.