JPS58217301A - Method of treating veneer having size - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous processing method for sized veneers dried by a roll dryer.

(Prior art) The sized veneers, which are conventionally dried by a roll dryer and carried out in the direction of their fibers, are once loaded in their entirety and then transported to the next process, a horizontal veneer, where a worker loads them one by one. Insert the veneers one by one, cut and remove the front and rear edges or defective parts of the veneers, put the front and rear ends of the obtained veneers together, and use adhesive, adhesive thread, tape, etc. to join them together. Cross-needle veneers were obtained by cutting to a certain size.

However, dried sized veneers are easily touched by human hands when they are being picked up, transported to the next process, or inserted into a flattening device, and are therefore easily damaged.

In addition, since the filling material is inserted into the cross-cut device by an operator, the filling effect into the device is poor, and even in high-speed cross-over devices, the productivity is low. Therefore, a large number of horizontal and vertical machines are required, and the space within the factory still needs to be expanded. Furthermore, a large amount of manpower was required for loading the products after the dryer, transporting them to the next process, and working with the flattening equipment.

In a roll dryer, a large number of sized veneers are inserted and dried in succession, so the drying condition of each sized veneer varies depending on the species of wood, etc., and if the finished moisture content is higher than the specified moisture content. were re-dried by natural drying or forced drying. In this case, a worker must remove the sized veneer before inserting it into the cross-cutting device, which causes a reduction in the filling efficiency of the horizontal stripping device.

In order to improve the filling efficiency of dregs, a method has also been proposed in which a sliver device is provided downstream of a roll dryer, and the dryer and ssampling device are connected by a conveyor or other conveyance device for continuous processing.

In this method, a moisture content detector is installed in the conveying device on the upstream side of the horizontal veneer, and the moisture content of each σ-sized veneer is detected before insertion, and if the finished moisture content is higher than the specified moisture content, a lamp etc. After marking is applied to the veneer, the operator removes the markings based on the markings before inserting the cross-cutting device. However, such manual filling of the horizontal i-device is inefficient and leaves the problem of low productivity.

The purpose of the present invention is to solve the above-mentioned problems in the conventional method for processing sized veneers of this type. Specifically, the present invention aims to finish sized veneers dried in a roll dryer and remove water from the veneer. Regardless of the cutting rate, the entire amount is cut horizontally, and the cutting process is changed according to the moisture content of the veneers that make up the cross-needle veneers. It was created by stacking horizontally spliced veneers of different thickness by sliding them in different positions. By having such a configuration, the present invention is intended to streamline the processing of sized veneers after drying and improve productivity, as well as to reduce the space of the stacking device (5). It is.

Embodiments of the present invention will be described below based on the drawings.

(2) 1 is a roll dryer that cuts raw wood and dries the obtained raw veneer while conveying it in the direction of the fibers of the veneer.

Reference numeral 2 denotes a belt conveyor that receives the dried sized veneer discharged from the roll dryer 1 and conveyed in the fiber direction, and conveys the veneer in a direction perpendicular to the fiber direction.

, ] 3 is a horizontal elongation device, which is conveyed by a belt conveyor 2 in a direction perpendicular to the fiber direction of the sized veneer.

After the front and rear edges or defective areas of the 1-inch veneer are cut and removed, the front and rear edges are butted together and the 1-inch veneer is joined using a conventional method such as adhesive, adhesive paper, adhesive thread, or tape. and obtain a horizontal needle veneer.

Reference numeral 4 denotes a conveyor for conveying out the connected cross-needle veneers that have been cut afterward.

5 is a stacking device for measuring the cut cross-needle veneers, and it collects the cross-needle veneers within the specified moisture content range and the cross-needle veneers with a moisture content higher than the specified moisture content including high moisture content areas at the same time. Sort and stack at the score collection location.

゛ 6 is a moisture content detector, which is located behind the horizontal needle veneer 3, detects the moisture content of the connected horizontal needle veneer during constant speed conveyance time 'r (Fig. 4), and calculates the detected moisture content. The output signal is configured to emit an output signal in response to the output signal.

7 is a cutting and bulking control computer which receives the output signal from the moisture content detector 6 and determines whether the detected moisture content during the constant speed conveyance time 'r is within the specified moisture content range compared to the preset moisture content. The cutting length of the cutting device 9 is switched depending on whether the material has a high moisture content portion or a portion with a high moisture content higher than a specified moisture content.

A cutting command device 8 receives a signal from the cutting and stacking control computer 7, detects the front edge of the conveyed and connected cross-needle veneer, and sends an operation signal indicating proper cutting to the cutting device 9. A cutting device 9 receives a signal from the cutting command device 8 and cuts the connected horizontal needle veneer.

10 is a loading conveyor, 11 is a loading table, 12 is a position sliding command device, and 13 is a position sliding device. These effects will be described later when explaining FIG. 6.

Next, the operation of the method of the present invention will be explained step by step.

(Explanation of operation) ■ The raw wood veneer obtained by cutting raw wood is transported and inserted into the roll dryer 1 in the direction of the fibers by a worker or a device such as an auto feeder, and then a belt installed in front of the exit Insert and convey to conveyor 2. Then, it is carried into the loading/unloading device 3 while the money is being collected.

■ In the loading/unloading device 3, the entire amount of sized veneer is carried in, regardless of the finished moisture content, which varies depending on the wood type and material, and after cutting and removing defective parts on the front and rear edges, the front and rear edges are poked. The sized veneers are connected using a common method such as laminating adhesive or tape to form a connected unloading veneer.

■ The connected cross-needle veneers are conveyed by the unloading conveyor 4 installed at the rear of the loading/unloading device 3, and the moisture content detector 6 detects the constant conveyance speed T (6th Figure) Detects the moisture content of the veneer. An output signal indicating whether this moisture content is within a specified moisture content range or above a preset moisture content is input to the cutting and stacking control computer.

(2) The cutting and stacking control computer 7 receives the signal from the moisture content detector 6 and determines whether the length to be cut by the cutting device 9 of the connected cross-stitched veneer is to be l+α or l.

As shown in FIG. 4, the moisture content detector 6 detects the time (t++ tt
') exceeds the set 9 hours t or not, the cutting length is determined.

That is, In this case, the cutting length is l + α, In this case, set the cutting length to 4.

(2) The connected horizontally spun veneer is conveyed while its moisture content is detected, and its leading end reaches the cutting command device 8.

Then, the cutting command device 8 sends a signal indicating that the leading edge of the veneer has arrived to the computer 7. Since the computer 7 stores the moisture content detection result, it sends a command to the cutting device 9 to cut the cutting length to l+α or l. In this way, the connected horizontally spliced veneer is cut to length or e+α. In this case, for example, when cutting to length l, the cutting is done at the same time as the leading edge of the jointed cross-splitting veneer reaches the cutting command device 8, and when cutting to length l + α, the leading edge of the jointed cross-splitting veneer is It is sufficient to cut the cutting command device 8 when the cutting command device 8 passes by a length α.

The computer 7 has a length l+α as shown in FIG.
When cutting and cutting, the next moisture content detection start time P is stored as a time point P delayed by 1 from the constant speed conveyance time T. However, when cutting to length l, as shown in Figure 5, the time point P when constant speed conveyance time T has elapsed from the time point P+, Ps when moisture content detection of the preceding veneer unit starts.
, , P, to start moisture content detection.

(2) The cut cross-splitting veneers are carried into the top picking device 5 by the carry-out conveyor 4 and the stacking conveyor 10.

Loading device #5 receives a command from the cutting and scoring control computer 7, and cuts the horizontally cut veneer of length l (↓ and horizontally cut veneer of length Although it is placed in r position, the 101j peeled veneers are sorted by sliding them in the transport direction a little and then stacked.

The sorting and stacking of horizontally spliced veneers of length l and l+α is carried out as follows.

That is, as shown in Fig. 6, (in Fig. 6, the length lX l
The veneer of 10α is indicated as l+α, l. ) length l ten α
When the tip of the side-splitting veneer reaches the stacking conveyor 10, the position-sliding device 13 is operated, and the command device 12 operates to suck up the side-splitting veneer having a length l + α, for example. After transporting it to the lower end by a distance α, it is released.

On the other hand, a side-splitting veneer of length l is loaded onto conveyor 1.
When the position reaches 0, the position sliding command device 12 does not operate and the object falls directly below the loading conveyor 10.

In this way, the horizontally spun veneers with lengths e and l+α are piled up after being slid by length α as shown in FIG.

The command of the position sliding command device 12 is Jk when the cutting device 9 cuts the connected cross-seam veneer to length l or separator + α.
The side-stripped veneer of Sagi+α reaches the loading conveyor 10 [
The cutting and bulking control computer 7 is stored so as to operate the positioning device 13 at the time of 7.

■ When stacking horizontally spliced veneers with lengths l and 40α, both may be stacked in a direction perpendicular to the transport direction.

In this case, the position sliding device 13 is transferred to the loading conveyor 10.
7° ■ In a multi-stage roll dryer, the dryer ÷ installation or multiple stages 1. A continuous line may be provided for each set of the 1Ith line as described above.

(Effects of the present invention) ■ Since the dried sized veneer is processed in a continuous line, the number of workers can be reduced, and there is no need to touch the sized veneer by hand, so the sized veneer is not damaged and the small stop is improved. do.

■ Since the entire dried sized veneer is cross-stitched, the filling efficiency of the cross-stitching device is high and productivity is improved. However, the filling efficiency of the garden plowing device is good, so you can use a large amount of space for one, two, and two devices.

■ For loading and unloading veneers including 41-dimensional boards with high water content, the length is 7i to γ+α to account for shrinkage due to re-drying.
Since the veneer has to be cut and used, yields can be improved without having to discard sized veneers with a high water content as in the past.

@ When stacking in the stacking device 5, horizontally laid veneers with lengths l and l+α are slid and stacked at the same position, so the space in the stacking device #5 is small.

[Brief explanation of the drawing]

Figure 1: Plan view of the device for carrying out the method of the present invention Figure 2: Same side + Mi diagram Figure 31: Side view of the counting device Figure 1: Explanatory diagram of the moisture content detection method Figure 5: Water content Explanatory diagram at the start of detection Figure 6: Explanatory diagram of the loading position of the purchasing veneer Loading device 6: Moisture content detector 7: Cutting and loading control computer 8 = Cutting command device 9, : Cutting device 10: Loading conveyor 11: Loading table 12: Position sliding command device 13: Position sliding Device ゛■゛: Constant speed conveyance time α: Specified moisture content Pl, P2, Pl, P4: Moisture content detection start time 4+α:
A veneer with a length of l ten α (Fig. 6) l : A veneer with a length of l (
Figure 6)

Claims (1)

[Claims] ■ A sized veneer that has been dried by a roll dryer and is carried out in the direction of the fibers of the sized veneer at a position in front of the outlet thereof in a direction perpendicular to the fiber direction of the sized veneer. Regardless of the finished moisture content of each d-sized veneer that is conveyed continuously, the front, back, and edge defects are sequentially removed to create a horizontally connected horizontal veneer. After that, the moisture content of the connected horizontal veneer veneer is detected during the constant speed conveyance time, and only when the detected moisture content is within the specified moisture content range, the connected horizontal veneer veneer is cut to a specified length. When cutting into medium (7), if there is a high moisture content area where the detected moisture content is higher than the specified moisture content, the connected horizontal veneer is being cut to a fixed length (cut the length by an appropriate dimension longer than the l). 10 α), transport the thus cut horizontal rectangular veneer, and place it at the same stacking position with the horizontal rectangular veneer in (1) being cut to a standard length and a length l + α that is longer by an appropriate dimension than that being cut to a standard length. ) and horizontally cut veneer,
A method for processing sized veneers, which is characterized by sorting and stacking them at a slightly different size. ■ Horizontal veneer (1) being cut to length at the same loading position,
Length l+α) which is longer by the appropriate dimension than Miyashaku cutting width (1)
2. A method for processing sized veneers according to claim 1, wherein the veneers are sorted and stacked while being slightly shifted in the direction of conveyance. ■ Side-splitting veneer (1) being cut to length at the same loading position,
During cutting to length (1), length L+α)
2. A method for processing sized veneers according to claim 1, wherein the horizontally spliced veneers are sorted and piled up after being rubbed a little in a direction perpendicular to the conveyance direction.