JPH0364284B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic winding process method for veneer veneer, and its purpose is to process a belt-shaped veneer suitable for winding, which is cut with a long veneer lace and then discharged. Peeled veneers, core-stripped veneers, and other veneers that are unsuitable for winding are automatically separated into a separate path for transport.
The strip-shaped veneer is wound up as it is by an automatic winding device, and the outer peripheral surface of the rolled strip-shaped veneer is automatically tied so that it does not come apart during the transportation process. - Saves labor by eliminating the need for two workers in the winding process, and also eliminates the inconvenience of wrapping the veneer veneer during winding and stopping the veneer lace once at the end of winding. The purpose of the present invention is to provide a method for processing veneer veneer with high efficiency.

In addition, the band-shaped veneer suitable for winding mentioned here is
This is a strip-shaped veneer made of veneer lace, which is produced by the veneer lace operator pulling out the center kebiki blade from the surface of the log in order to scrape the top, back, etc. This refers to veneer veneer, which is a material with few defects.

In addition, veneer veneers that are unsuitable for winding include irregularly shaped veneers (top-peeled veneers) that are manufactured from the time the raw wood is cut with veneer lace until it reaches a perfect circle, and veneers that are not suitable for winding. Core-stripped veneers tend to crack and split as they get closer to the core of the raw wood, and even veneers that can be rolled up and are produced in strips are prone to cracks, knots, rot, etc. This includes veneers that have been determined not to be rolled up, such as when they cannot be used as front or back plates due to material defects, or when various problems are likely to occur in the next manufacturing process. It is produced by a veneer lace driver operating a center keiki blade to cut into the surface of a raw wood in order to cut a veneer for the core board of plywood, etc.

Now, while cutting veneer veneers that are unsuitable for winding, such as the aforementioned irregular length veneers conventionally produced using veneer lace, the take-up reel is moved up from the tatsuchi roll provided at the end of the carry-out conveyor, and the clipper at the rear is cut. When the irregular length veneer is carried out to a belt-shaped veneer suitable for winding, the veneer lace is temporarily stopped and the worker tears and separates the veneer veneer, and the irregular length veneer is removed from the veneer that is unsuitable for winding. After carrying out the veneer to the rear of the tatsuchi roll, the take-up reel is moved down, and the tip of the strip-shaped veneer suitable for winding is wound around the reel and re-cutting is performed.

Also, as the cutting progresses and approaches the core, the so-called core-stripped veneer, which has many cracks and tears, becomes unsuitable for winding, so the veneer lace is stopped again, and the veneer lace is removed by the worker in the same way as above. Tear the board apart and
Furthermore, the terminal end of the strip-shaped veneer being wound up was completely wound up, and the wound ball was moved upward from the tatsuchi roll before cutting was started. In other words, the bobbin cannot be moved upward from the tatsuchi roll until the terminal end is completely wound up, and during this time the veneer lace comes to a complete stop, resulting in inefficiency. In addition, when cutting long veneer lace veneers, one worker is required on each side of the delivery conveyor, and from this point of view, there is a strong desire for labor savings.

The present invention has been made to solve the problems caused by these conventional construction methods as described above, and will be explained below based on embodiments shown in the drawings.

When cutting raw wood 1 with veneer lace A to obtain veneer veneer 2, the top-peeled veneer or core-peeled veneer has irregular lengths, cracks, and many tears, making it unsuitable for winding. Therefore, in order to automatically carry out only the band-shaped veneers to another conveyor by branching the delivery path for the so-called band-shaped veneers that are cut and connected into a band-like shape at the middle of the delivery conveyor 3, the delivery conveyor 3 is separated from the middle part thereof. It is divided into two stages, upper and lower. Hereinafter, of the two-stage delivery conveyor 3, the upper stage will be referred to as an upper stage conveyor 4, and the lower stage will be referred to as a lower stage conveyor 5. Automatic winding device B is connected to the terminal end of the upper conveyor 4.
Although not shown, the lower conveyor 5 is connected to a processing device such as a sized clipper.

Reference numeral 6 denotes an opening/closing conveyor for switching the path of the veneer veneer 2 cut with the veneer lace A and carried out on the carrying-out conveyor 3 into a band-shaped veneer suitable for winding and a veneer not suitable for winding. A clipper C is provided at the leading end, that is, at a position immediately before the carry-out conveyor 3 branches into two upper and lower stages. The clipper C may be a rotary type clipper as shown in FIG.
The clipper C may be provided with a cutting blade 8 that reciprocates within an opposing interval on the discharge side of a pair of conveyors 7 and 7a that rotate at the same speed as the conveyance direction. In this clipper C, the cutting operation of the cutting blade 8 immediately becomes the switching operation of the veneer path, so the opening/closing conveyor 6 is not necessary, and it is sufficient to arrange the upper and lower conveyors 4 and 5 in relation to the cutting blade 8, respectively. . 9 is a cutting knife of veneer lace A,
9a is a nose bar. In addition, 10 is a center cutting blade that cuts the center part in the fiber direction of the veneer veneer 2 to be cut, and 10a is a fluid cylinder that cuts this cutting blade 10 into and out of the surface of the log 1.
11 is a drive mechanism for driving each conveyor 3, 4, 5 in synchronization with the cutting speed of the veneer race A.

At D, the outer periphery of the wound veneer 2' of the wound veneer veneer 2 is tied with a wrapping medium 12 such as tape or adhesive thread to prevent the veneer veneer 2 from coming apart during transportation. This is an automatic binding machine for

Now, when top-peeling the log 1 until it becomes a perfect circle, the opening/closing conveyor 6 is rotated upward as shown in Fig. 2 to cut off the communication between the carry-out conveyor 3 and the upper conveyor 4, and the top-peeling veneer is cut. It is carried out to the lower conveyor 5. In this case, the center cutting blade 10 is usually cut into the surface of the log 1 to shave off the veneer for the core board of the plywood. Next, when the veneer veneer 2 to be cut changes from a top-peeled veneer to a band-shaped veneer suitable for winding, the operator of the veneer race A uses the center knife blade 10 to cut the top plate, back plate, etc. A control operation is performed to pull it out from one surface. In conjunction with this operation, the belt-shaped veneer is delayed by the distance from the cutting knife 9 of the veneer race A to the cutting position of the clipper C, that is, a time limit is given to the control circuit that operates the center keiki blade 10, and the clipper C The veneer is activated to cut the veneer, and the boundary between the top-peeled veneer unsuitable for winding and the strip-shaped veneer suitable for winding is automatically clarified. In order to transport the product to the upper conveyor 4, the opening/closing conveyor 6 is operated to close the discharge conveyor 3 as shown in FIG.

These operations are automatically performed by well-known electrical control.

Next, as cutting progresses, the strip-shaped veneer is automatically wound up one after another as shown in Figure 1.This automatic winding device B has the following configuration as shown in Figures 1 and 4. It's on.

That is, the top end of the upper conveyor 4 is attached so as to be able to swing up and down with its starting end 4' as a fulcrum, and the touch roll 13 is provided at the top end. Furthermore, a weight 15 is suspended via a wire 14 so that the Tatsuchi Roll 13 and the upper conveyor 4 are always urged upward, and a weight 15 is suspended above the Tatsuchi Roll 13 as a result of the rotational drive of the upper conveyor 4. A take-up reel 16 is detachably arranged. A first guide member 17 whose starting end is positioned slightly above the Tatsuchi roll 13 is provided on the carry-in side of the take-up reel 16, and a first guide member 17 whose starting end is positioned slightly above the Tatsuchi roll 13 is provided on the take-out side. The first and second guide members 17, 17a and 17b are respectively arranged.
The main body is composed of a pair of arms 18, 18a which squeeze and cross each other above the take-up reel 16. Each of the guide members 17, 17a
consists of a chain 17' and a roller 17'', and the rotation of the roller 17'' facilitates the introduction of the veneer veneer 2. Also, a weight 19 for applying tension is suspended from the end. The arms 18, 18a are provided with fluid cylinders (not shown) so that they can be opened and closed freely, and when the winding of the veneer veneer 2 is completed, the guide members 17, 17a
It has a structure that opens outward to release the crossover. On the other hand, the starting ends of each of the guide members 17, 17a are provided on pressing arms 20, 20a, respectively, and the pressing arms 20, 20a are provided on a sliding body 22 that slides up and down on a sliding rail 21, and A weight 23 that applies tension to the pressing arms 20, 20a is suspended via a wire 24.
In the automatic winding device B configured in this manner, the tip of the strip-shaped veneer enters the take-up reel 16 from between the starting end of the Tatsuchiroll 13 and the first guide member 17, and as the Tatsuchiroll 13 rotates. The veneer veneer 2 is controlled by the first and second guide members 17, 17a.
It is wound up while being guided.

Next, the cutting of the raw wood of veneer lace A causes the core to be stripped, resulting in a core-stripped veneer that is unsuitable for winding, or even if the veneer is connected into a band and can be rolled, it may suffer from cracks, knots, rot, etc. If it is determined that winding should not be carried out due to material defects, the center ripping blade is operated to cut into the log, the clipper C is activated using the same control operations as described above, and The opening/closing conveyor 6 is opened to the carrying-out conveyor 3 as shown in FIG. 2, and the cored veneer is carried out to the lower conveyor 5.

Therefore, the end portion of the strip-shaped veneer moves on the upper conveyor 4 via the opening/closing conveyor 6.

In this way, the core-stripped veneer is conveyed to the lower conveyor 5, and at the same time, a wrapping medium 12 such as tape or thread is attached to the end of the strip-shaped veneer that is moving on the upper conveyor 4.
supply. That is, by winding up the winding medium 12 together with the band-shaped veneer, the outer peripheral surface of the rolled ball 2' is automatically tightened to eliminate looseness during transportation. As illustrated in FIG. 5, there is a mechanism that feeds out the tape 25 with its adhesive side facing up while pricking its back surface with a stab roll 26, a cutter 27 that cuts the tape 25, and a mechanism in which the tape 25 is wound together with the winding ball 2'. a drive device 28 that drives the stab roll 26 to feed out the tape 25 until the tape 25 is pulled out;
The main body consists of a guide roll 29 that is provided at the tip of the tape 25 and guides the tape 25, and an actuating device 30 such as a cylinder that displaces the guide roll 29 as shown by the broken line so that the tape 25 can be cut by the cutter 27. The automatic tying machine D is placed on the take-in side of the take-up reel 16.

In addition, instead of the above-mentioned tape, it is also possible to use a commonly used packing tape, a thread coated with a wet curing adhesive or a thermoplastic adhesive, or even just a thread without using an adhesive. You can also wrap it around. When using the above-mentioned thread, the thread is inserted into a nozzle and is let out using the ejection force of compressed air.
Since such binding of the wound ball 2' with the winding medium 12 is performed while the core stripping cutting is being performed, it can be performed with sufficient time.

As explained above, when the veneer veneer cut with the veneer lace and discharged changes from a top-peeled veneer to a band-shaped veneer suitable for winding, the center kebiki blade is operated to pull it out from the log. A control circuit linked to this operation operates the clipper to cut the veneer veneer when a band-shaped veneer suitable for winding reaches the cutting position of the clipper, thereby cutting the veneer veneer at the border with the veneer veneer unsuitable for winding. Then, when the cutting of the raw wood leads to core stripping, resulting in a core-stripped veneer that is unsuitable for winding, or even if the veneer is connected into a band and can be rolled, cracks, knots, rot, etc. When it is determined that winding should not be performed, such as when it cannot be used for the top plate or back plate due to material defects, or when various problems are likely to occur after the next manufacturing process, the center The blade is operated to cut into the log, and a control circuit linked to this operation allows
When a veneer veneer unsuitable for winding reaches the cutting position of the clipper, the clipper is activated to cut the veneer veneer, clarifying the boundary with the veneer veneer suitable for winding, and cutting the veneer to separate each veneer. The conveyance path for the veneers is separated, and the veneer veneers suitable for winding are fed directly to the automatic winding device installed at the end of the upper conveyor, and once the winding is finished, it is tied, so one race driver can do everything. In addition, even while the rolled balls are being tied together to prevent them from coming apart, it is possible to continue stripping the core of the raw wood, as well as cutting the top of the next raw material, making it possible to use veneer lace. The utilization rate will be significantly improved.

As is clear from the foregoing, the present invention makes it possible for the first time to obtain the maximum practical effect using a simple method, and thus greatly contributes to the plywood industry.

[Brief explanation of drawings]

The drawings illustrate an example of carrying out the method of the present invention, and FIG. 1 is a side explanatory view, FIG. 2 is a side explanatory view explaining the operation, and FIG. 3 is a side explanatory view explaining another embodiment of the clipper C. 4 is a rear view of the automatic winding device, and FIG. 5 is a side view of the automatic binding machine. A...Plywood lace, B...Automatic winding device, C
... Clipper, D ... automatic binding machine, 1 ... log, 2 ... veneer, 2' ... roll, 3 ... unloading conveyor, 4 ... upper conveyor, 5 ... lower conveyor, 6 ...opening/closing conveyor, 11...drive mechanism,
12...Wrapping medium, 13...Tatsuchiroll, 1
7, 17a...first and second guide members, 18, 1
8a...Arm, 25...Tape.

Claims (1)

[Claims] 1. A carry-out conveyor for carrying out veneer veneers cut with veneer lace is provided with two stages branching from the middle of the conveyor into upper and lower stages, and an automatic winding device is provided at the end of the upper stage conveyor. transports only strip-shaped veneers suitable for winding,
The lower conveyor is equipped with a clipper located just before the conveyor branches into two upper and lower stages in order to separate and convey top-stripped veneers or core-stripped veneers that are unsuitable for winding. When the veneer veneer that is cut by the veneer lace and discharged changes from a top-peeled veneer to a strip-shaped veneer suitable for winding, the center kebiki blade is operated to pull it out of the raw wood, and a control circuit is linked to this operation. When a band-shaped veneer suitable for winding reaches the cutting position of the clipper, the clipper is operated to cut the veneer, and in conjunction with the cutting operation, the path of the band-shaped veneer is switched to the upper conveyor. The strip-shaped veneer is transported to an upper conveyor and wound up as it is,
Next, when cutting the log with the veneer lace leads to core stripping, and the core is removed and the veneer becomes a core-stripped veneer that is unsuitable for winding, the center kebiki blade is operated to cut into the surface of the log.
By means of a control circuit linked to this operation, when a core-stripped veneer unsuitable for winding reaches the cutting position of the clipper, the clipper is operated to cut the veneer again, and in the same way, it is transported to the lower conveyor. At the same time, the core-stripped veneer is conveyed to the lower conveyor while a wrapping medium such as tape is automatically supplied to the end of the strip-shaped veneer that has been cut by the clipper and is being conveyed on the upper conveyor. A method for automatically winding up a veneer veneer, characterized in that the veneer is wound together with a band-shaped veneer as it is, and the outer peripheral surface of the rolled veneer is tied by the winding medium.