JPS61130404U

JPS61130404U -

Info

Publication number: JPS61130404U
Application number: JP1375185U
Authority: JP
Priority date: 1985-02-01
Filing date: 1985-02-01
Publication date: 1986-08-15

Description

[Brief explanation of the drawing]

第１図は、超仕上かんな盤の概略構成を示す正
面図、第２図は本考案の一実施例を示すブロツク
回路図、第３図イ，ロは木材１５を引き戻した場
合の概略図である。図において、１はベース、２はテーブル、３は
コラム、４はフイードスクリユー、５はヘツド、
６は可逆電動機、７は駆動ローラ、８は従動ロー
ラ、９は送材ベルト、１０はかんな刃、１１及び
１３は検出器、１２は検出ローラ、１４は昇降ハ
ンドル、１５は木材、１６は保持回路、１７はＡ
ＮＤ回路、１８はＮＯＲ回路、１９及び２０は検
出回路、２１は反転制御回路、２２及び２３は増
幅回路、２４及び２５はリレーコイル、２４ａ及
び２５ａは常開リレー接点、２４ｂ及び２５ｂは
常閉リレー接点である。 Fig. 1 is a front view showing a schematic configuration of a super finishing planer, Fig. 2 is a block circuit diagram showing an embodiment of the present invention, and Fig. 3 A and B are schematic views when the wood 15 is pulled back. be. In the figure, 1 is the base, 2 is the table, 3 is the column, 4 is the feed screw, 5 is the head,
6 is a reversible electric motor, 7 is a drive roller, 8 is a driven roller, 9 is a material feeding belt, 10 is a planer blade, 11 and 13 are detectors, 12 is a detection roller, 14 is a lifting handle, 15 is wood, and 16 is a holder circuit, 17 is A
ND circuit, 18 is a NOR circuit, 19 and 20 are detection circuits, 21 is an inversion control circuit, 22 and 23 are amplifier circuits, 24 and 25 are relay coils, 24a and 25a are normally open relay contacts, 24b and 25b are normally closed It is a relay contact.

Claims

[Scope of Claim for Utility Model Registration] 1. Wood detection that detects the presence or absence of wood in the wood feeding direction by forming a material feeding path with an endless material feeding belt driven by a reversible electric motor and a material feeding table having a planer blade. A super-finish planer having a means for automatically reciprocating wood, wherein a wood detecting means is disposed in front of the material conveying belt in the wood feeding direction, and further forward the wood detecting means detects the thickness of the wood. The detection means is removed, and a regulation circuit A is provided which operates upon receiving the output signal of the wood thickness detection means during normal rotation of the material conveying belt and regulates the operation of the wood detection means. A device for preventing erroneous reversal of a material conveying belt, characterized in that when the material is being detected, the output signal from the regulating circuit A blocks the output signal from the wood detecting means. 2. A holding circuit is provided which operates upon receiving the output signal of the board thickness detection means and maintains the state of the signal, and a time limit is provided to block the output signal from the wood detection means when the holding circuit does not maintain the signal state. An erroneous reversal prevention device according to claim 1 of the utility model registration claim, characterized in that a circuit B is provided.