JPH027802B2 - - Google Patents
Info
- Publication number
- JPH027802B2 JPH027802B2 JP9698880A JP9698880A JPH027802B2 JP H027802 B2 JPH027802 B2 JP H027802B2 JP 9698880 A JP9698880 A JP 9698880A JP 9698880 A JP9698880 A JP 9698880A JP H027802 B2 JPH027802 B2 JP H027802B2
- Authority
- JP
- Japan
- Prior art keywords
- veneer
- splitting
- strip
- hot plate
- hot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000001035 drying Methods 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 description 13
- 238000005520 cutting process Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 206010041662 Splinter Diseases 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Veneer Processing And Manufacture Of Plywood (AREA)
- Drying Of Solid Materials (AREA)
Description
【発明の詳細な説明】
この発明は横はぎ生単板の乾燥方法および装置
に係り、横はぎ生単板の板面をその繊維方向と直
交する方向に、また少なくともその両木口端に近
接した部位を含むように、複数組の帯状刺着体に
よつて刺着した状態で熱板により加圧、加熱する
という簡単な構成で、横はぎ生単板を高能率でし
かも狂いの生じないように乾燥する方法および装
置を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for drying a side-splitting raw veneer, and includes drying the surface of the side-splitting raw veneer in a direction perpendicular to its fiber direction and at least close to both wood ends thereof. With a simple configuration in which multiple sets of strip-shaped splinters are attached to cover the parts, pressure is applied and heated by a hot plate, side-splitting raw veneer can be produced with high efficiency and without distortion. The present invention provides a method and apparatus for drying.
横はぎ生単板は小巾生単板の端面を衝合させ、
端面間に生単板の接合可能な接着剤を介在させ、
また板面にその繊維方向と直交する方向に接着剤
によつて複数本の糸条を固着させて形成される
が、横はぎ生単板を形成する個々の小巾生単板は
含有水分がまちまちで乾燥による収縮量も異り、
またその両木口端においても含有水分および収縮
量が異ることが多く、従つてこのような小巾生単
板を複数枚接合した横はぎ生単板を、普通のロー
ラ送りまたは金網送りの熱風循環式ドライヤーで
乾燥すると、個々の小巾生単板の収縮差、特に両
木口端における収縮差によつて、第７図に示す横
はぎ乾燥単板A′のように扇状に変形したり、第
８図に示すように台形状に変形したりする。扇状
に変形した場合、所望の繊維方向Ｆの巾Ｗに対し
て有効巾がW′となり、台形状に変形した場合、
所望の繊維方向と直交する方向の長さＬに対して
有効な長さはL′となる。従つて小巾生単板はこれ
らの巾方向および長さ方向の変形を見越して、ベ
ニヤレースにおける引寸法の設定、横はぎにおけ
る切断長さの設定を行う必要があつて、これらの
寸法は必要以上に大きく設定され、これが大巾な
歩止り低下の原因となつていた。 For side-splitting raw veneers, the edges of the narrow raw veneers are brought together,
An adhesive that can bond green veneer is interposed between the end faces,
It is also formed by fixing multiple threads to the board surface with an adhesive in a direction perpendicular to the fiber direction, but each narrow raw veneer that forms a side-splitting raw veneer has a low moisture content. The amount of shrinkage due to drying varies,
In addition, the moisture content and the amount of shrinkage are often different at both ends of the wood. When dried in a circulating dryer, the difference in shrinkage between the individual short-width veneers, especially at the ends of both ends, causes the veneer to deform into a fan shape, as shown in side-splitting dried veneer A' shown in Figure 7. As shown in FIG. 8, it deforms into a trapezoidal shape. When deformed into a fan shape, the effective width is W′ relative to the desired width W in the fiber direction F, and when deformed into a trapezoid shape,
The effective length for the length L in the direction perpendicular to the desired fiber direction is L'. Therefore, it is necessary to set the draw dimensions for the veneer lace and the cutting length for the side splices in anticipation of these deformations in the width direction and length direction for the short width veneer, and these dimensions are necessary. This was set larger than the above, and this caused a significant drop in yield.
この発明は前記従来法の欠点に鑑み開発したも
ので、第９図に示すように横はぎ生単板をその繊
維方向Ｆと直交する方向に、またその両木口端に
近接した部位を含む複数箇所（図は３箇所）を帯
状Ｓに、多数の針状凸起体を付設した帯状刺着体
によつて刺着した状態で、熱板により加圧、加熱
して乾燥するものであるから、刺着された部分は
乾燥による繊維方向と直交する方向の収縮が抑制
され、また熱板の全面加圧による収縮抑制との相
乗作用によつて、個々の小巾生単板の含水率およ
び収縮率の差に関係なくほぼ一定の僅かな収縮
（刺着された部位に発生する細かい割れの解放後
の復元と熱板の加圧力に抗して起る収縮）が起る
にとどまり、この収縮の抑制、特に両木口端付近
を含む帯状刺着体による抑制によつて、扇状にも
台形状にも変形しない殆んど狂いのない乾燥が施
されるのである。そしてこの繊維方向と直交する
方向の収縮量は予測することができるから、ベニ
ヤレースにおけるケ引寸法および横はぎにおける
切断寸法を乾燥仕上り寸法に近い寸法に設定でき
て大巾な歩止り向上となり、更に熱板の加圧、加
熱によるから、熱風式に比べ遥かに高能率な乾燥
を行うことができ、しかも平らに仕上つた横はぎ
乾燥単板を得ることができるのである。 This invention was developed in view of the drawbacks of the conventional method, and as shown in FIG. This is because the locations (three locations in the figure) are attached to the strip S using a strip-shaped sticking body attached with a large number of needle-like protrusions, and then dried by applying pressure and heating with a hot plate. , shrinkage in the direction perpendicular to the fiber direction due to drying is suppressed in the pricked area, and due to the synergistic effect of suppressing shrinkage by applying pressure on the entire surface of the hot plate, the moisture content and Regardless of the difference in shrinkage rate, only a slight, almost constant shrinkage occurs (restoration after release of small cracks that occur at the punctured site and shrinkage that occurs in response to the pressure of the hot plate). By suppressing the shrinkage, especially by suppressing the shrinkage in the vicinity of both butt ends using the strip-shaped sticks, drying can be carried out with almost no irregularities, without deforming into fan-like or trapezoidal shapes. Since the amount of shrinkage in the direction perpendicular to the fiber direction can be predicted, the draw dimensions for veneer lace and the cutting dimensions for cross stitching can be set to dimensions close to the dry finished dimensions, resulting in a significant improvement in yield. Furthermore, since it relies on the pressure and heating of a hot plate, drying can be performed much more efficiently than with hot air methods, and it is also possible to obtain horizontally spliced dried veneers with a flat finish.
この発明を図面に示す実施例により以下に説明
する。第１図乃至第３図は発明装置の第１番目の
一実施例を示し、複数枚の熱板１，１′，１″は作
動機構２によつて開閉し得るように構成してあ
り、各熱板は内部に蒸気、熱水等の熱源を通して
加熱板を形成し、作動機構２の作動によつて閉じ
たとき、各熱板の上下面により横はぎ生単板Ａを
加圧、加熱して乾燥せしめるものである。各熱板
のうち最上段の熱板１を除いた中間の熱板１′
（実施例は中間の熱板１′は１段となつているが、
通常は多段に構成される。）と最下段の熱板１″と
には、それぞれの上面１′ａおよび１″ａに複数箇
所（実施例は２箇所）の凹溝３および３′（第３
図）が穿設してある。そしてこれらの各凹溝３お
よび３′は熱板間に挿入される横はぎ生単板Ａの
繊維方向と直交する方向に穿設し、また横はぎ生
単板Ａの両木口端に近接する部位に一致するよう
に設けるのである。 This invention will be explained below with reference to embodiments shown in the drawings. 1 to 3 show a first embodiment of the inventive device, in which a plurality of hot plates 1, 1', 1'' are configured to be opened and closed by an operating mechanism 2, Each heating plate forms a heating plate through which a heat source such as steam or hot water is passed inside, and when it is closed by the operation of the operating mechanism 2, the horizontally spliced raw veneer A is pressurized and heated by the upper and lower surfaces of each heating plate. The middle heating plates 1', excluding the top heating plate 1, are used to dry the heating plates.
(In the embodiment, the intermediate heating plate 1' is one stage, but
Usually configured in multiple stages. ) and the lowest heating plate 1'' have concave grooves 3 and 3' (third
(Fig.) is perforated. Each of these grooves 3 and 3' is bored in a direction perpendicular to the fiber direction of the side-splitting raw veneer A to be inserted between the hot plates, and is adjacent to both ends of the side-splitting raw veneer A. It is placed so that it matches the area.
回転車４，５および４′，５′は中間の熱板１′
および最下段の熱板1″の両側端に近接して配設し
たもので、各回転車にはそれぞれ無端帯に多数の
針状凸起体Ｎを付設した熱板１′用の帯状刺着体
６および熱板１″用の帯状刺着体６′が張設してあ
り、各帯状刺着体６および６′はそれぞれ前記各
凹溝３および３′を通路とし、帯状刺着体６は最
上段の熱板１と中間の熱板１′との間に、帯状刺
着体６′は熱板１′と最下段の熱板１″との間にそ
れぞれ横はぎ生単板Ａを搬入し、また乾燥の終了
後これを搬出するように構成してある。尚、各熱
板の下面１′ｂおよび１″ｂに設けた各凹溝３″は
各帯状刺着体６′，６′の帰りの通路となるもので
ある。 Rotating wheels 4, 5 and 4', 5' are intermediate hot plate 1'
and a band-shaped pin for the heating plate 1', which is arranged close to both ends of the heating plate 1'' at the lowest stage, and each rotary wheel has an endless band with a large number of needle-like protrusions N attached thereto. A band-shaped stuck body 6' for the body 6 and the hot plate 1'' is stretched, and each band-shaped stuck body 6 and 6' uses the respective grooves 3 and 3' as passages, and the band-shaped stuck body 6' The horizontally spun green veneer A is placed between the top heating plate 1 and the middle heating plate 1', and the strip-shaped splicing body 6' is placed between the heating plate 1' and the bottom heating plate 1''. The structure is such that it is carried in and carried out after drying is completed.The grooves 3'' provided on the lower surfaces 1'b and 1''b of each hot plate are connected to each band-shaped stuck body 6', 6' will be the return passage.
搬入コンベヤ７および７′は横はぎ生単板Ａを
その繊維方向と直交する方向に各帯状刺着体６お
よび６′に給送するもので、この場合横はぎ生単
板Ａの両木口端に近接した部位が各帯状刺着体６
および6′にほぼ一致するように給送する。加圧ロ
ール８および８′は各帯状刺着体６および６′の搬
入端付近に設けたもので、搬入コンベヤ７および
７′によつて送られて来る横はぎ生単板Ａの板面
に針状凸起体Ｎを刺着させる加圧手段である。 The conveyors 7 and 7' feed the side-splitting raw veneer A to the strip-shaped splicing bodies 6 and 6' in a direction perpendicular to the fiber direction of the raw veneer A. The part close to each band-shaped stick body 6
and 6′. Pressure rolls 8 and 8' are provided near the inlet end of each band-shaped stuck body 6 and 6', and press rolls 8 and 8' to apply pressure to the surface of the side-splitting raw veneer A sent by inlet conveyors 7 and 7'. This is a pressurizing means for sticking the needle-like convex body N into place.
横はぎ生単板Ａは加圧ロール８，８′によつて
その両木口端付近に針状凸起体Ｎが刺着された
後、各帯状刺着体６，６′の走行により開とした
各熱板間に挿入される。この挿入が終ると作動機
構２を作動して各熱板を閉じ、横はぎ生単板Ａを
帯状刺着体６，６′により刺着した状態で熱板に
よる加圧、加熱を行う。この熱板の加熱により急
速な乾燥が行はれるとともに、加熱に際して横は
ぎ生単板Ａはその両木口端付近が帯状刺着体６，
６′により刺着され、また熱板による加圧との相
乗作用によつてその収縮が抑制され、狂いのない
平らな仕上りの横はぎ乾燥単板A′が得られる。
乾燥が終ると熱板を開とし、各帯状刺着体６，
６′を走行させ、各帯状刺着体６′，６′に続いて
配設した搬出コンベヤ９，９′へ横はぎ乾燥単板
A′を送り出す。この場合搬出コンベヤ９，９′は
その搬送面を各帯状刺着体６，６′の搬送面をよ
ぎるように配設して、針状凸起体Ｎを横はぎ乾燥
単板A′の板面から解放させる離脱手段をも兼ね
る。この板面から針状凸起体Ｎを解放する離脱
は、各帯状刺着体６，６′を張設する搬出端の回
転車に近接して各帯状刺着体６，６′の搬送面を
よぎる大径の回転車を付設する等の適宜の手段に
よることができる。 After the needle-like protrusions N are stuck to the side-splitting green veneer A near both end ends by the pressure rolls 8, 8', it is opened by the running of each band-like sticks 6, 6'. It is inserted between each heated plate. When this insertion is completed, the actuating mechanism 2 is operated to close each hot plate, and the hot plate presses and heats the horizontally spliced raw veneer A with it being stuck by the band-shaped sticks 6, 6'. Rapid drying is carried out by the heating of this hot plate, and during heating, the side-splitting raw veneer A has strip-shaped splicing bodies 6,
6', and its shrinkage is suppressed by the synergistic effect with the pressure applied by the hot plate, resulting in a side-splitting dried veneer A' with a flat finish without any distortion.
When the drying is finished, open the hot plate, and each strip-shaped stuck body 6,
6' is run, and the dried veneer is side-stripped onto conveyors 9, 9' disposed following each strip-shaped splicing body 6', 6'.
Send out A′. In this case, the unloading conveyors 9, 9' are arranged so that their conveying surfaces cross the conveying surfaces of the respective band-shaped stuck bodies 6, 6', and the needle-like convex bodies N are laterally stripped from the dried veneer A'. It also serves as a means of escape from the surface. The detachment to release the needle-like protrusions N from this plate surface is carried out on the conveying surface of each strip-shaped stuck object 6, 6' in close proximity to the rotary wheel at the delivery end on which each strip-shaped stuck object 6, 6' is stretched. Appropriate means can be used, such as attaching a large-diameter rotary wheel that crosses the ground.
尚、中間の熱板１′は開閉動作するから、帯状
刺着体６および搬入出コンベヤ７，９は熱板１′
と同調して移動するように熱板に支持するか、ま
たは別の移動手段に支持して熱板との同調移動を
行ない、また帯状刺着体６，６′および搬入出コ
ンベヤ７，７′，９，９′は横はぎ生単板Ａを熱板
によつて加圧、加熱している間停止するように間
けつ駆動機構によつて駆動する。また横はぎ生単
板Ａの繊維方向の長さが長い場合には、実施例の
ように両木口端付近だけでなく中央付近にも帯状
刺着体を設けて、横はぎ生単板全面の一様な収縮
の抑制を行う。 Incidentally, since the intermediate hot plate 1' is operated to open and close, the band-shaped stuck body 6 and the carrying-in/out conveyors 7, 9 are connected to the hot plate 1'.
The belt-shaped sticking bodies 6, 6' and the loading/unloading conveyors 7, 7' , 9 and 9' are driven by an intermittent drive mechanism so as to stop while the side-splitting green veneer A is being pressed and heated by a hot plate. In addition, when the length of the side-splitting raw veneer A is long in the fiber direction, strip-shaped splicing bodies are provided not only near both butt ends but also near the center as in the example, so that the entire surface of the side-splitting raw veneer is covered. Performs uniform contraction suppression.
第４図乃至第６図は発明装置の第２番目の一実
施例を示し、この装置においては、作動機構１０
によつて開閉自在に構成した複数枚の熱板１１，
１１′，１１″のうち、中間の熱板１１′および最
下段の熱板１１″の各上面１１′ａ，１１″ａに、
挿入される横はぎ生単板Ａの繊維方向と直交する
方向に、またその両木口端に近接した部位にほぼ
一致するように、それぞれ針状凸起体Ｎ付帯状刺
着体１２，１２′を付設したもので、各熱板間に
横はぎ生単板Ａを挿入して加圧するとき、この加
圧により熱板面に付設した針状凸起体Ｎを横はぎ
生単板Ａの両木口端付近の板面に刺着して加熱乾
燥するように構成したものである。この実施例で
は帯状刺着体１２，１２′は熱板へ固定するので、
横はぎ生単板Ａの熱板間への搬入出および熱板面
への載置離間を行う搬送コンベヤ１３，１３′を
配設する。 4 to 6 show a second embodiment of the inventive device, in which the actuating mechanism 10
A plurality of hot plates 11 configured to be openable and closable by
11', 11'', on each upper surface 11'a, 11''a of the middle hot plate 11' and the lowest hot plate 11'',
Needle-like protrusions N and strip-like pricking bodies 12, 12' are inserted in a direction perpendicular to the fiber direction of the horizontally spliced raw veneer A to be inserted, and so as to approximately coincide with the areas close to both butt ends thereof. When the side-splitting raw veneer A is inserted between each hot plate and pressure is applied, the needle-like protrusions N attached to the hot plate surface are pushed to both sides of the side-splitting raw veneer A by this pressurization. It is constructed so that it sticks to the board surface near the end of the wood and is heated and dried. In this embodiment, since the band-shaped stuck bodies 12, 12' are fixed to the hot plate,
Conveyor conveyors 13 and 13' are provided for carrying the horizontally spliced raw veneer A into and out of the space between the hot plates and for placing and separating the raw veneer A on the hot plate surface.
搬送コンベヤ１３および１３′はそれぞれ中間
の熱板１１′と最下段の熱板１１″；の両側端に近
接して配置した各回転車１４，１５および１４′，
１５′に無端帯を張設して形成したもので、搬送
コンベヤ１３は中間の熱板１１′に、搬送コンベ
ヤ１３′は最下段の熱板１１′に対して設けたもの
である。そして帯状刺着体１２および１２′を付
設した各熱板１１′および１１″の上面１１′ａお
よび１１″ａには、帯状刺着体１２および１２′に
近接するとともにこれと並行して複数箇所（実施
例は２箇所）の凹溝１６および１６′を穿設し、
この各凹溝１６および１６′に一致して搬送コン
ベヤ１３および１３′を走行および出没させるの
である。尚各熱板１１′，１１″の下面に設けた凹
溝は各搬送コンベヤ１３，１３′の帰りの通路と
なるものである。 The conveyors 13 and 13' are provided with rotary wheels 14, 15 and 14' disposed close to both ends of the intermediate heating plate 11' and the lowermost heating plate 11'', respectively.
The conveyor 13 is provided to the middle hot plate 11', and the conveyor 13' is provided to the bottom hot plate 11'. On the upper surfaces 11'a and 11''a of each of the hot plates 11' and 11'' to which the strip-shaped pierced bodies 12 and 12' are attached, a plurality of Drill grooves 16 and 16' at locations (two locations in the example),
The transport conveyors 13 and 13' are caused to run and move in and out in accordance with these grooves 16 and 16'. Incidentally, the grooves provided on the lower surface of each hot plate 11', 11'' serve as a return path for each conveyor 13, 13'.
搬送コンベヤ１８，１８′は横はぎ生単板Ａを
その繊維方向と直交する方向に、またその両木口
端付近が帯状刺着体１２，１２′とほぼ一致する
ように各搬送コンベヤ１３，１３′へ給送するも
ので、搬送コンベヤ１９，１９′は搬送コンベヤ
１３，１３′から横はぎ乾燥単板A′を受取り、こ
れを次位の工程へ送り出すものである。そして中
間の熱板１１′に対する搬送コンベヤ１３および
搬入出コンベヤ１８，１９は前記と同様に熱板１
１′の開閉動作と同調して移動するように構成し、
またこれらのコンベヤは熱板により加圧、加熱し
ている間は停止するように間けつ駆動機構によつ
て駆動する。 The conveyors 18, 18' move the side-splitting green veneer A in a direction perpendicular to its fiber direction, and the respective conveyors 13, 13 move the side-splitting raw veneer A in a direction perpendicular to its fiber direction, and in such a way that the vicinity of both butt ends of the veneer A are approximately aligned with the band-shaped spliced bodies 12, 12'. The conveyors 19, 19' receive the side-splitting dried veneer A' from the conveyors 13, 13' and send it to the next process. The conveyor 13 and the loading/unloading conveyors 18 and 19 for the intermediate hot plate 11' are connected to the hot plate 11' in the same manner as described above.
It is configured to move in synchronization with the opening/closing operation of 1',
Further, these conveyors are driven by an intermittent drive mechanism so as to stop while being pressurized and heated by a hot plate.
各搬送コンベヤ１３および１３′を各凹溝１６
および１６′に対して出没させる動作は、例えば
各搬入出コンベヤ１８，１８′，１９，１９′の機
枠に付設した作動機構２０，２０′によつて行う。
即ち、各作動機構２０，２０′の作動によつて各
回転車１４，１５，１４′，１５′を昇降させ、各
搬送コンベヤ１３，１３′の搬送面を各凹溝１６，
１６′に対して出没させるのである。この実施例
においては、各熱板が開、各搬送コンベヤ１３，
１３′が上昇位置の状態で横はぎ生単板Ａを搬入
コンベヤ１７，１７′から搬送コンベヤ１３，１
３′により熱板間に給送し、横はぎ生単板Ａが所
定の位置に達すると、作動機構２０，２０′によ
つて搬送コンベア１３，１３′を下降させて、横
はぎ生単板Ａを各熱板１１′，１１″上に載置す
る。このとき横はぎ生単板Ａの両木口端付近は各
帯状刺着体１２，１２′とほぼ一致しており、次
いで作動機構１０を作動して熱板を閉じ、その加
圧により帯状刺着体１２，１２′の針状凸起体Ｎ
を横はぎ生単板Ａの板面に刺着するとともに、こ
の刺着状態において熱板により加圧、加熱し、横
はぎ生単板Ａの急速で狂いのない乾燥を行う。乾
燥が終ると開とし、搬送コンベヤ１３，１３′を
上昇させ、この上昇過程において横はぎ乾燥単板
A′の針状凸起体Ｎからの解放と熱板面からの離
間を行ない、各コンベヤの走行によつて横はぎ乾
燥単板A′を搬出コンベヤ１９，１９′へ送り出す
のである。 Each conveyor 13 and 13' is connected to each groove 16.
The operation of moving the conveyors 18, 18', 19, and 16' into and out is performed, for example, by actuating mechanisms 20, 20' attached to the frame of each conveyor 18, 18', 19, 19'.
That is, the respective rotary wheels 14, 15, 14', 15' are raised and lowered by the operation of the respective operating mechanisms 20, 20', and the conveying surface of each conveyor 13, 13' is moved into each groove 16, 15'.
16'. In this embodiment, each hot plate is open and each conveyor 13,
With 13' in the raised position, the side-splitting raw veneer A is conveyed from the conveyor 17, 17' to the conveyor 13, 1.
3' feeds the raw veneer A between the hot plates, and when the side-splitting raw veneer A reaches a predetermined position, the conveyors 13, 13' are lowered by the operating mechanisms 20, 20', and the side-splitting raw veneer A A is placed on each hot plate 11', 11''.At this time, the vicinity of both butt ends of the side-splitting raw veneer A are almost aligned with each band-shaped splinter body 12, 12', and then the actuating mechanism 10 is activated to close the hot plate, and by applying pressure, the needle-like protrusions N of the band-shaped stuck bodies 12, 12' are closed.
is attached to the board surface of the side-splitting raw veneer A, and in this stuck state, it is pressurized and heated by a hot plate, thereby drying the side-splitting raw veneer A rapidly and without irregularities. When the drying is finished, the conveyors 13, 13' are opened and the conveyors 13, 13' are raised.
A' is released from the acicular convex body N and separated from the hot plate surface, and the side-splitting dried veneer A' is delivered to the carry-out conveyors 19, 19' by the running of each conveyor.
以上のようにこの発明は、多数の針状凸起体を
付設した帯状刺着体によつて、横はぎ生単板の板
面をその繊維方向と直交する方向に、また少なく
とも横はぎ生単板の両木口端に近接した部位を刺
着した状態で熱板により加圧、加熱して乾燥を行
うものであるから、刺着と加圧とによつて繊維と
直交する方向の乾燥収縮が抑制され、収縮量の異
る複数枚の小巾生単板を接合した横はぎ生単板で
も、全く変形の生じないまた収縮の少ない乾燥を
行うことができ、小巾生単板のケ引寸法および横
はぎにおける切断寸法を可及的に小さく設定し得
て歩止り向上に寄与し、また熱板による接触加熱
であるから短時間で高能率な乾燥を施すことがで
きる等の諸効果を有し、合板製造に多大の貢献を
なすものである。 As described above, the present invention enables the surface of a cross-splitting raw veneer to be moved in a direction perpendicular to the fiber direction thereof, and at least for cross-splitting raw veneers, by means of a strip-shaped sticking body attached with a large number of needle-like protrusions. Since drying is performed by applying pressure and heating with a hot plate while the parts close to both butt ends of the board are attached, the drying shrinkage in the direction perpendicular to the fibers is caused by the attachment and pressure. It is possible to dry horizontally spun raw veneers with no deformation or less shrinkage, even when multiple sheets of narrow raw veneer with different amounts of shrinkage are joined together. The dimensions and cutting dimensions of the horizontal strips can be set as small as possible, contributing to improved yields, and since contact heating is performed using a hot plate, highly efficient drying can be performed in a short period of time. It has made a great contribution to plywood manufacturing.
図面はこの発明の実施例を示し、第１図は第１
の発明装置を示す側面図、第２図は第１図の平面
図、第３図は第１図のｘ−ｘ線の断面図、第４図
は第２の発明装置を示す側面図、第５図は第４図
の平面図、第６図は第４図のＹ−Ｙ線の断面図、
第７図および第８図は従来法によつて乾燥された
横はぎ乾燥単板の変形の状態を示す説明図、第９
図は本発明による横はぎ乾燥単板を示す説明図で
ある。
１，１′，１″……熱板、１′ａ，１″ａ……熱板
の上面、１′ｂ，１″ｂ……熱板の下面、２……作
動機構、３，３′，３″……凹溝、６，６′……帯
状刺着体、７，７′……搬入コンベヤ、８，８′…
…加圧ロール、９，９′……搬送コンベヤ、１０
……作動機構、１１，１１′，１１″……熱板、１
１′ａ，１１″ａ……熱板の上面、１２，１２′…
…帯状刺着体、１３，１３′……搬送コンベヤ、
１６，１６′……凹溝、１８，１８′……搬入コン
ベヤ、１９，１９′……搬出コンベヤ、２０，２
０′……作動機構、Ａ……横はぎ生単板、A′……
横はぎ乾燥単板、Ｎ……針状凸起体。
The drawings show embodiments of the invention, and FIG.
FIG. 2 is a plan view of FIG. 1, FIG. 3 is a sectional view taken along the line xx in FIG. 1, and FIG. 4 is a side view of the second invention device. Figure 5 is a plan view of Figure 4, Figure 6 is a sectional view taken along the Y-Y line of Figure 4,
Figures 7 and 8 are explanatory diagrams showing the deformation state of horizontally spliced veneer dried by the conventional method;
The figure is an explanatory diagram showing a horizontally spliced dried veneer according to the present invention. 1, 1', 1''...Hot plate, 1'a, 1''a...Top surface of hot plate, 1'b, 1''b...Bottom surface of hot plate, 2...Operating mechanism, 3, 3' , 3''... Concave groove, 6, 6'... Band-shaped stuck body, 7, 7'... Carrying-in conveyor, 8, 8'...
...Pressure roll, 9,9'...Conveyor conveyor, 10
...Operating mechanism, 11, 11', 11''...Hot plate, 1
1'a, 11''a...Top surface of hot plate, 12, 12'...
...Band-shaped stuck body, 13, 13'...Conveyor,
16, 16'...concave groove, 18, 18'...carry-in conveyor, 19,19'...carry-out conveyor, 20,2
0'...Operating mechanism, A...Horizontal raw veneer, A'...
Side-stripped dry veneer, N...acicular convex body.
Claims (1)
に、また少なくともその両木口端に近接した部位
を含むように、多数の針状凸起体を付設した複数
組の帯状刺着体によつて刺着し、該各帯状刺着体
による刺着状態において熱板によりその板面を加
圧、加熱することを特徴とする横はぎ生単板の乾
燥方法。 ２ 開閉自在に構成した熱板に、熱板間に挿入さ
れる横はぎ生単板の繊維方向と直交する方向に、
また少なくともその両木口端に近接した部位を含
むように、複数箇所の凹溝を穿設し、該各凹溝を
通路として横はぎ生単板の熱板間への搬入出を行
う多数の針状凸起体を付設した複数組の帯状刺着
体を配設し、該各帯状刺着体の搬入端には針状凸
起体を横はぎ生単板の板面に刺着させる加圧手段
を、その搬出端には針状凸起体を板面から解放さ
せる離脱手段を備え、且つ前記各帯状刺着体によ
る横はぎ生単板の板面の刺着状態において熱板に
より加圧、加熱することを特徴とする横はぎ生単
板の乾燥装置。 ３ 開閉自在に構成した熱板に、熱板間に挿入さ
れる横はぎ生単板をその繊維方向と直交する方向
に、また少なくともその両木口端に近接した部位
を含むように刺着可能の複数組の針状凸起体付帯
状刺着体を付設し、該各帯状刺着体の付設位置に
近接するとともにこれと並行して熱板に複数箇所
の凹溝を穿設し、横はぎ生単板を熱板間へ搬入出
させるとともに熱板面へ載置および熱板面から離
間させるように搬送コンベヤを前記凹溝に対して
出没可能に設け、且つ前記各帯状刺着体による横
はぎ生単板の板面の刺着状態において熱板により
加圧、加熱することを特徴とする横はぎ生単板の
乾燥装置。[Scope of Claims] 1. A plurality of sets of side-splitting green veneers provided with a large number of needle-like protrusions in a direction perpendicular to the fiber direction thereof, and including at least portions close to both butt ends thereof. A method for drying a side-splitting green veneer, which comprises pricking the veneer with strip-shaped pricking bodies, and pressurizing and heating the board surface with a hot plate while the strip-shaped pricking bodies are sticking. 2. On the hot plates configured to be openable and closable, in the direction perpendicular to the fiber direction of the side-splitting raw veneer inserted between the hot plates,
In addition, grooves are bored in multiple places, including at least the areas close to both butt ends, and a large number of needles are used to carry the side-splitting raw veneer in and out between the hot plates, using each groove as a passage. A plurality of sets of strip-shaped sticking bodies each having a convex-like protrusion are arranged, and pressure is applied at the input end of each strip-like protruding body to make the needle-like protrusion stick to the surface of the side-splitting raw veneer. The means is provided with a release means for releasing the needle-like protrusions from the plate surface at its delivery end, and is pressurized by a hot plate when the plate surface of the side-splitting raw veneer is stuck by each of the strip-shaped sticks. , a drying device for horizontally spliced raw veneer, which is characterized by heating. 3. A side-splitting raw veneer to be inserted between the hot plates is attached to the hot plates configured to be openable and closable in a direction perpendicular to the fiber direction of the hot plates, and at least to include parts close to both butt ends of the hot plates. A plurality of sets of strip-like sticking bodies with needle-like protrusions are attached, and concave grooves are bored at multiple places in the hot plate adjacent to and parallel to the attachment position of each of the strip-like sticking bodies. A conveyor is provided so as to be able to move in and out of the groove so that the green veneer is carried in and out between the hot plates, and is placed on the hot plate surface and separated from the hot plate surface. A drying device for side-splitting raw veneer, which is characterized by applying pressure and heating using a hot plate when the surface of the raw veneer is stuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9698880A JPS5722002A (en) | 1980-07-16 | 1980-07-16 | Method and device for drying laterally ripping-off raw veneer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9698880A JPS5722002A (en) | 1980-07-16 | 1980-07-16 | Method and device for drying laterally ripping-off raw veneer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5722002A JPS5722002A (en) | 1982-02-04 |
| JPH027802B2 true JPH027802B2 (en) | 1990-02-21 |
Family
ID=14179581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9698880A Granted JPS5722002A (en) | 1980-07-16 | 1980-07-16 | Method and device for drying laterally ripping-off raw veneer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5722002A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5731778A (en) * | 1980-08-04 | 1982-02-20 | Uroko Seisakusho Co Ltd | Dryer |
| JPS58165586U (en) * | 1982-04-28 | 1983-11-04 | 太田 正之 | Multi-stage veneer dryer |
-
1980
- 1980-07-16 JP JP9698880A patent/JPS5722002A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5722002A (en) | 1982-02-04 |
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