JP2005088226A - Method and apparatus for ruling veneer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a veneer ruling method capable of performing the ruling for each veneer and the mutual alignment of veneers without hindrance in a process for transferring a plurality of veneers in series, and to provide a veneer ruling apparatus. <P>SOLUTION: Ruling mechanisms G1 and G2 same as veneers 1h×1m to be transferred in number are together provided to a transfer mechanism H in series so as to leave an interval L equal to the length W in the transfer direction of each veneer while a veneer retracting mechanism J for temporarily retracting the preceding veneer 1h from the transfer route of the transfer mechanism H is together provided to the transfer mechanism H. When ruling the preceding veneer 1h, the ruling mechanism G2 for the succeeding veneer is set in a stop state and, when ruling the succeeding veneer 1m, the preceding veneer 1h is temporarily retracted from the transfer route of the transfer mechanism H through the veneer retrating mechanism J to operate the ruling mechanism G2 for the succeeding veneer. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a veneer veneer ruler and a veneer veneer ruler.

  In recent years, the use of LVL (abbreviated as Laminated Veneer Lumber, also commonly used as single plate laminate and parallel plywood, but also referred to as LVL in this application) as a building material to replace solid lumber has been on the rise. Yes, according to a manufacturing method in which a required number of veneer veneers cut into a rectangular shape (hereinafter simply referred to as single veneer) are stacked and bonded in a stepwise fashion, and the process of repeating the process is repeated. Are dispersed in different positions for each adjacent layer, so that it is possible to obtain a long LVL with no restriction on the length while avoiding a decrease in strength. A known LVL manufacturing method using a simple adhesive), for example, a method in which the required number of stacked sheets are shifted and moved together, and the heat pressing is performed at a time is relatively long. Have the disadvantage of being extremely low, or In the process of intermittently transporting the LVL in series with the base heat pressure mechanism in series, a single plate is supplied one by one from the upper surface side and the lower surface side for each front position of each heat pressure mechanism and stacked. The production method using hot pressing has problems such that the entire manufacturing apparatus to be used becomes extremely complicated and large, or that the thermal pressure is uneven and local adhesion failure is a concern, both of which lack practicality. Therefore, the present applicant previously proposed a new manufacturing method for improving the practicality in “Laminate Manufacturing Method” (Japanese Patent Application No. 2002-142579).

  The outline of the proposed manufacturing method is as follows. In the manufacturing method of LVL, the process of laminating and bonding the required number of single plates cut into a rectangular shape in a stepwise manner is repeated. When pressing, the LVL is moved to a required position each time so that the single plate is always located in the hot pressure range of the hot pressure body that hot-presses the single plate. A specific embodiment will be described. In order to carry out the manufacturing method, for example, as shown in FIG. 12 (a), heating is performed via a heating source such as a stationary platen A, heating steam / electric heater, etc., as necessary. A heating plate B that can be moved up and down in the direction of the arrows shown, a forward conveyor C that can be rotated forward and backward, an auxiliary conveyor D that can be rotated forward and backward, a rear conveyor E that can be rotated forward and backward, a single plate suction function and an opening function, Suction hood F that can be moved up and down in the direction of the arrow Bellows pipe connecting to the hood F, a suction device or the like is not shown), the control mechanism (using the manufacturing apparatus having a not illustrated) for controlling the operation of each equipment, repeated adhesion of veneer in the following order.

  That is, for example, in order to start a series of steps from the state of FIG. 12 (a), the auxiliary conveyor D and the rear conveyor E are stopped, and the LVL 2 currently manufactured is stopped at the position shown in the figure. Adhere the veneer 1a not coated with the adhesive to be bonded from the position indicated by the solid line through the front conveyor C to the position indicated by the dotted line, and the veneer 1b coated with the adhesive 3 to be bonded together While being transferred from the position indicated by the solid line to the position indicated by the dotted line via the hood F, the heating panel B is raised to the position shown in the figure at least until the transfer of the single plates 1a and 1b is completed. In addition, the adsorption | suction hood F which finished the transfer of the single plate 1b raises to the original position promptly.

  Next, as shown in FIG. 12B, after the front conveyor C, auxiliary conveyor D, and rear conveyor E are normally rotated in the direction indicated by the arrows, the single plates 1a and 1b and LVL2 are moved to the positions shown in the figure. The front conveyor C, the auxiliary conveyor D, and the rear conveyor E are stopped, and in the state where the single plates 1a and 1b and LVL2 are stopped at the illustrated positions, the heating panel B is lowered to the illustrated positions, The plates 1a and 1b are bonded to the LVL2. Separately, the veneer 1c coated with the adhesive 3 to be bonded next is adsorbed to the adsorption hood F and waited at the illustrated position.

  Next, when the bonding between the single plates 1a and 1b and the LVL 2 is completed, the heating board B is raised to the position shown in the figure, and then the front conveyor C, the auxiliary conveyor D, and the rear conveyor E are shown in FIG. Is rotated in the direction of the arrow shown in the figure, and after moving LVL2 (including the single plates 1a and 1b at this time) to the position shown in the figure, the front conveyor C, the auxiliary conveyor D, and the rear conveyor E are stopped, and the LVL2 Is stopped at the position shown in the figure, the veneer 1c coated with the adhesive 3 to be bonded next is moved from the standby position to the position shown in the figure via the suction hood F. In addition, the adsorption | suction hood F which finished the transfer of the single plate 1c raises to the original position promptly.

  Next, as shown in FIG. 12 (d), the front conveyor C, the auxiliary conveyor D, and the rear conveyor E are normally rotated in the direction indicated by the arrows to move the single plates 1c and LVL2 to the illustrated positions, and then the front conveyor. C, Auxiliary Conveyor D and Rear Conveyor E are stopped, and in the state where single plate 1c and LVL2 are stopped at the illustrated position, heating panel B is lowered to the illustrated position, and single plate 1c and LVL2 are bonded. To do. Separately, the veneer 1d coated with the adhesive 3 to be bonded next is adsorbed to the adsorbing hood F and waited at the position shown in the figure.

  Next, when the bonding of the single plate 1c and the LVL2 is completed, the heating board B is raised to the position shown in the figure as shown in FIG. 12E, and then the front conveyor C, the auxiliary conveyor D, and the rear conveyor E are shown in the arrows. After reversing the direction, the LVL2 (including the single plate 1c at this time) is moved to the position shown in the figure, and then the front conveyor C, the auxiliary conveyor D, and the rear conveyor E are stopped, and the LVL2 is moved to the position shown in the figure. In the stopped state, the single plate 1d coated with the adhesive 3 to be bonded next is moved from the standby position to the position shown in the figure via the suction hood F. In addition, the adsorption | suction hood F which finished the transfer of the single plate 1d raises to the original position promptly.

  Next, as shown in FIG. 12 (f), the front conveyor C, the auxiliary conveyor D, and the rear conveyor E are rotated forward in the direction of the arrows to move the single plates 1d and LVL2 to the positions shown in the figure. C, Auxiliary Conveyor D and Rear Conveyor E are stopped, and in the state where single plate 1d and LVL2 are stopped at the illustrated position, heating panel B is lowered to the illustrated position, and single plate 1d and LVL2 are bonded. To do. Separately, the veneer 1e not coated with the adhesive to be bonded next is placed on the front conveyor C and waited at the illustrated position, and the veneer 3 with the adhesive 3 to be bonded together is applied. 1f is adsorbed by the adsorption hood F, and waits at the position shown in the figure.

  When the veneer 1d and the LVL 2 are bonded, the process returns to the step shown in FIG. 12 (a), and the veneers 1e and 1f are respectively transferred from the position indicated by the solid line to the position indicated by the dotted line, and thereafter the same process is repeated. Thus, the single plates 1a to 1z (theoretically, z is infinite) can be stacked and bonded while being shifted stepwise, so that they are cut at a desired length at the rear of the rear conveyor E. Thus, an LVL having a desired length can be obtained. In addition, in the said process drawing, although the adhesive agent was described with the dotted line shape for convenience of clarifying presence of an adhesive agent, there is no restriction | limiting in particular about the application form of an adhesive agent, for example, a thin film form, a thin string form, a dot Various known forms of application, such as the shape, may be employed.

  Incidentally, the number of laminated LVLs that are put to practical use is remarkably multi-layered compared to ordinary plywood and the like with dozens to dozens of layers, but according to the manufacturing method in which a single plate is bonded to each layer, Compared to the conventional manufacturing method that heat-presses the required number of laminated sheets at once, the required hot-pressing time is greatly shortened and the productivity is improved. In preparation for this, even if compared with a manufacturing method in which a single plate is bonded at a time in multiple stages, the entire manufacturing apparatus can be simplified, or uniform heat pressure can always be applied, and local adhesion failure may occur. It is possible to exert a beneficial effect as a whole.

  However, as shown in the examples of FIGS. 12 (a) to 12 (f), the productivity is greatly increased in the form of the process of stacking the single plates one by one on the single side of the LVL (the actual example is the upper surface side). However, although not shown in the figure, a single plate is supplied to each of the upper surface side and the lower surface side of the LVL, and they are stacked and bonded in a staircase pattern (the fixing plate is attached) The form that needs to be heated in the same way as the heating panel) was also proposed in the above-mentioned gazette and aimed at further improving the productivity. However, the improvement in productivity is still sufficient. It's hard to say.

  Therefore, a form in which a plurality of single plates are lined up in series on the desired surface side of the LVL and supplied together, and stacked and bonded while shifting in a staircase form is also proposed in the above-mentioned gazette, and productivity is also proposed. The embodiment will be further improved, and the embodiment will be described in more detail. According to the example of FIG. 12, for example, as shown in FIG. 14 (a), a fixed plate A, a heating plate B, a front conveyor C , Using a manufacturing apparatus having an auxiliary conveyor D, a rear conveyor E, a suction hood F, etc., with regard to the fixed plate A and the heating plate B, a plurality of (two in the example) single plates can be hot-pressed. In addition to the configuration, the suction hood F is configured to be able to suck each of a plurality of single plates.

  Even if a plurality of single plates are supplied, the manufacturing process is exactly the same as the example of FIG. 12, and the auxiliary conveyor D and the rear conveyor E are stopped as shown in FIG. In a state where the LVL 2 is stopped at the position shown in the figure, the position indicated by the dotted line from the position indicated by the solid line through the front conveyor C to the single plate 1h · 1m to which the adhesive to be bonded next is not applied. The single plates 1n and 1r coated with the adhesive 3 to be bonded together are transferred from the position indicated by the solid line through the suction hood F to the position indicated by the dotted line, and at least each of the single plates 1h and 1m Until the transfer of 1n · 1r is completed, the heating board B is raised to the position shown in the figure. In addition, the adsorption | suction hood F which finished transfer of the single plate 1n * 1r raises to the original position promptly.

  Next, as shown in FIG. 14 (b), the front conveyor C, the auxiliary conveyor D, and the rear conveyor E are rotated forward in the direction of the arrows, and the single plates 1h, 1m, 1n, 1r, and LVL2 are moved to the illustrated positions. After the movement, the front conveyor C, the auxiliary conveyor D, and the rear conveyor E are stopped, and the heating plate B is illustrated in a state where the single plates 1h, 1m, 1n, 1r, and LVL2 are stopped at the illustrated positions. The single plates 1h, 1m, 1n, and 1r are bonded to the LVL 2 by being lowered to the position. Separately, the single plates 1s and 1t coated with the adhesive 3 to be bonded next are adsorbed to the adsorption hood F and waited at the illustrated position.

  Next, when the bonding of each single plate 1h, 1m, 1n, 1r and LVL2 is completed, as shown in FIG. 14C, the heating board B is raised to the position shown in the figure, and then the front conveyor C and the auxiliary conveyor D Then, the rear conveyor E is reversed in the direction of the arrow shown in the drawing, and the LVL 2 (including the single plates 1h, 1m, 1n, and 1r at this time) is moved to the illustrated position, and then the front conveyor C, the auxiliary conveyor D, In the state where the rear conveyor E is stopped and the LVL 2 is stopped at the illustrated position, the single plates 1 s and 1 t coated with the adhesive 3 to be bonded next are illustrated from the standby position via the suction hood F. Move to the position to be The suction hood F that has finished transferring the single plates 1s and 1t is quickly raised to the initial position.

  Next, as shown in FIG. 14 (d), the front conveyor C, the auxiliary conveyor D, and the rear conveyor E are rotated forward in the direction of the arrow shown in the drawing, and the single plates 1s and 1t and LVL2 are moved to the positions shown in the figure. The front conveyor C, the auxiliary conveyor D, and the rear conveyor E are stopped, and in a state where the single plates 1s, 1t and LVL2 are stopped at the illustrated positions, the heating panel B is lowered to the illustrated positions, and the single plates 1s, 1s, Adhere 1t and LVL2. Separately, the single plates 1u and 1v coated with the adhesive 3 to be bonded next are adsorbed to the adsorption hood F and waited at the illustrated position.

  Similarly, by repeating a series of steps to return to the state of FIG. 14 (a) through steps similar to the example of FIG. 12 (e) and FIG. 12 (f), a long LVL with no length restriction is obtained. However, as shown in the example of FIG. 14, productivity is doubled compared to the example of FIG. 12 by adopting a configuration in which two single plates are supplied together to one side of the LVL. Further, although not shown in the figure, if a configuration in which three single plates are supplied together to one side of the LVL, the productivity is tripled, and four single plates are combined together to one side of the LVL. In this type of LVL manufacturing method, the productivity is quadrupled if the supply form is adopted or the single plate is supplied to each of both sides of the LVL. The productivity improvement efficiency by the form in which a plurality of single plates are arranged in series and supplied together is remarkable.

  By the way, regardless of the manufacturing method, if the joints between the ends of each single plate are not uniform, the quality of the LVL is deteriorated. Therefore, even in this type of LVL manufacturing method, a rectangular shape is used. The ruler of the end of the cut single plate is an important requirement, and in particular, the ruler of the end that follows the direction intersecting the transfer direction of the single plate (LVL) (usually aligned perpendicular to the transfer direction) If it is not uniform, it will cause quality degradation such as irregular wraps and tunnels.

Thus, for the ruler of the end of the single plate as described above, for example, “Plate-like body positioning and conveying device and plate-like body positioning method” (Japanese Patent Laid-Open No. 2003-104528), “Plate In general, a ruler-feeding mechanism having a rotating and retracting ruler is used as disclosed in Japanese Patent Application Laid-Open No. 2003-155114 and the like. If the mechanism is applied to the front conveyor in the example shown in FIG. 12, for example, as shown in FIG. The ruler 4 and the ruler feed mechanism G having an operating mechanism 5 such as a rotary cylinder and a servo motor for alternately raising and lowering the ruler 4 alternately in the direction of the arrow as shown in the figure are attached to the front conveyor C and adhesive is used. Of the uncoated veneer 1a The end portion is brought into contact with the ruler 4 erected via the operation mechanism 5 to perform ruler extraction, and then the ruler 4 is turned over via the operation mechanism 5 as illustrated in FIG. Depending on the situation, the transfer by the front conveyor C is interrupted for a while during the fall, and the veneer 1a is transferred by the distance L1 via the front conveyor C (appropriate slip prevention, such as a pinch roll, if necessary) By applying the treatment and further stopping the front conveyor C, the ruler of the single plate 1a and the transfer to the desired position can be carried out without any particular trouble.
JP 2003-104528 A JP 2003-155114 A

  However, the ruler feeding mechanism is applied to the front conveyor in the example of FIG. 14, and the ruler of a plurality of single plates, the rear end portion of the preceding single plate, and the front end portion of the subsequent single plate are used. It has been found in the development process of the present invention that the following problems occur when the alignment is performed together.

  That is, in accordance with the example of FIG. 15 (a), as illustrated in FIG. 16 (a), a turn-in / out ruler 4 having a ruler-out position at a distance L2 from the rear end of the LVL2 as appropriate. A ruler feeding mechanism G having an operating mechanism 5 and the like for alternately raising and lowering the ruler 4 in the direction of the arrow as shown in the figure is provided on the front conveyor C. First of all, the preceding veneer 1h not coated with adhesive The front end is brought into contact with a ruler 4 erected via the operating mechanism 5 to perform ruler extraction, and then, as illustrated in FIG. 16B, the front end of the succeeding single plate 1m not coated with adhesive. By bringing the portion into contact with the rear end portion of the preceding veneer 1h, the position of each of the veneers 1h and 1m, and the position of the rear end portion of the preceding veneer 1h and the front end portion of the subsequent veneer 1m. As is well known, it is used for the production of LVL. The thickness of a single veneer is about 2 mm to 4 mm, and it usually has a non-flat shape due to shrinkage due to drying and has warping, twisting and other distortions. The front end of the single plate does not stably contact the rear end of the preceding single plate, and there is a frequent problem that it climbs upward or sinks downward, making ruler and alignment impossible.

  The present invention has been developed to solve the problems of the conventional ruler method and ruler, and more specifically, a plurality of rectangular single plates are connected in series via a transfer mechanism. In the process of transferring, the ruler mechanism provided alongside the transfer mechanism is followed by the ruler of the end portion that follows the direction intersecting the transfer direction of each single plate, and the trailing end portion of the preceding single plate. When aligning with the front end of the veneer, the same number of ruler mechanisms as the veneer to be transferred are serially attached to the transfer mechanism with an interval corresponding to the length of the veneer in the transfer direction. At the same time, a single plate retraction mechanism for retreating at least a single plate other than the last single plate individually or temporarily from the transfer path of the transfer mechanism is attached to the transfer mechanism, and the leading single plate is determined. Sometimes the ruler mechanism for all subsequent veneers is suspended When the following single plate is not disturbed and the following single plate is ruled out, the single plate that has finished the ruler preceding at least immediately before is transferred via the single plate retracting mechanism. A single plate ruler method (claim 1) characterized in that it is temporarily or continuously evacuated and does not impede the operation of the following single plate ruler mechanism, and a rectangular single plate In addition to a transfer mechanism that transfers a plurality of sheets in series, and a ruler of an end that follows the direction intersecting the transfer direction of each single plate, the rear end of the preceding single plate and the front end of the subsequent single plate In order to carry out the positioning, the ruler feeding mechanism attached to the transfer mechanism and at least the single plate other than the last single plate are individually and temporarily or continuously saved from the transfer path of the transfer mechanism. Appropriate number of veneer retractors attached to the mechanism A single plate ruler having at least the same number as the single plate for transferring the ruler mechanism, and being provided in series with the transfer mechanism in series with a distance corresponding to the length of the single plate in the transfer direction. When performing the ruler of the preceding single plate, the ruler mechanisms for all subsequent single plates are put into a pause state, and when performing the ruler of the subsequent single plate, at least immediately before through the single plate retracting mechanism. Retract each single ruler mechanism and single plate so that the single plate that has finished the previous ruler is temporarily or continuously withdrawn from the transfer path of the transfer mechanism, and the ruler mechanism for the subsequent single plate is in operation. A single-plate ruler device comprising a control mechanism for controlling the operation of the mechanism (Claim 2), and a single-plate ruler device according to claim 2, further comprising a conveyor-type transfer mechanism. Claim 3) and at least 4. A single plate ruler device (Claim 4) according to claim 2 or 3, further comprising a ruler feeding mechanism having a turn-in / out type ruler for a single plate other than the leading single plate. 4. A single plate ruler device (Claim 5) comprising a ruler feeding mechanism having a lifting and lowering ruler for a single plate other than the leading single plate, and at least the leading plate 4. A single plate ruler device (Claim 6) comprising a ruler feeding mechanism having a skewed and retracted ruler for a single plate other than a single plate, and a push-up type A single plate ruler according to claim 2, claim 3, claim 4, claim 5, or claim 6, comprising a single plate retracting mechanism, and a lifting type single plate retracting mechanism. A single-plate ruler device according to claim 2 or claim 3 or claim 4 or claim 5 or claim 6 (Claim 8) and a single plate ruler according to claim 2 or 3, or 4 or 5, or 6 comprising an adsorption type single plate retracting mechanism (Claim 9). And propose.

  According to the single plate ruler method and single plate ruler according to the present invention, when the preceding single plate is to be ruled out, it is necessary to follow the ruler in spite of having the same number of ruler mechanisms as the single plate to be transferred. Since the ruler mechanism for all the single plates to be in the dormant state, there is no possibility of obstructing the transfer of the preceding single plate. Since the veneer that has finished the ruler is temporarily or continuously withdrawn from the transfer path of the transfer mechanism, there is no risk of hindering the operation of the subsequent ruler for the single plate. Since the direction and position of the front end portion of each single plate can be reliably controlled, the ruler of each single plate can be always stably positioned and the single plates can be aligned with each other.

  Hereinafter, the present invention will be described in further detail together with an example of the embodiment illustrated in the drawings. For the sake of simplifying the description, the mechanism and member having the same configuration as the mechanism and member already described in the background art section will be described. The same reference numerals are attached, and detailed explanations thereof are omitted as much as possible. In addition, the configuration of the actual apparatus is not limited to the illustrated mechanism and the size and form of the member, and may be any form that can perform basic functions without any change in design as needed. .

  FIG. 1 is an explanatory side view of a single plate ruler device according to the present invention. In the figure, G1 and G2 are ruler actuating mechanisms composed of a rotary ruler 4, a rotary cylinder, a servo motor, and the like. A ruler feeding mechanism having 5 etc., which is the same number as the number of single plates 1h and 1m (2 in the example) transferred together by a roll conveyor H described later, the length of the single plate 1h (1m) in the transfer direction. In line with the roll conveyor H in series with an interval L equivalent to W, based on the control of the control mechanism M, which will be described later, from the ruler indexing mechanism G1 located on the lower side in the transfer direction of the single plates 1h and 1m Operates in sequence toward the ruler indexing mechanism G2 located on the upper side, and aligns the ruler of each single plate 1h and 1m and the rear end of the preceding single plate 1h and the front end of the subsequent single plate 1m. Together with.

  H is a roll conveyor having a plurality of cylindrical rolls 6, a drive source 7 comprising a servo motor, a step motor, etc., and corresponds to the front conveyor C in the examples of FIGS. , Provided in front of an auxiliary conveyor (both not shown) located in front of an LVL heat and pressure mechanism having a fixed plate, a heating plate, etc., and in the direction indicated by the arrow based on the control of the control mechanism M described later. Forward and reverse, the single plates 1h and 1m are serially transferred in the direction indicated by the arrows, and LVL (not shown) is transferred in the same direction and in the opposite direction as the transfer direction of the single plates 1h and 1m as appropriate.

  J is a single plate retracting mechanism having a lifting bar 9 including a plate-shaped lifting bar 8, a fluid cylinder, a cam, and the like, and a timely lifting mechanism based on the control of the control mechanism M described later. 9, the push-up bar 8 is moved up and down in the direction of the arrow as shown by a solid line and a dotted line, and the preceding single plate 1 h is temporarily retracted from the transfer path of the roll conveyor H.

  K1 and K2 are ruler detectors each composed of a plurality of (usually two) reflective photoelectric tube detectors, etc., arranged above each ruler device. A detection signal is transmitted to the control mechanism M, which will be described later, every time it is detected that the dispensing has been completed.

  Reference numeral 10 denotes a pinch roll provided so as to be capable of rolling to the upper part of the start end of the roll conveyor H, and stabilizes the loading of the single plates 1h and 1m into the roll conveyor H.

  M is a control mechanism for controlling the operations of the ruler feeding mechanisms G1 and G2, the roll conveyor H, the single plate retracting mechanism J, and the like, and transfers a plurality of single plates 1h and 1m in the direction of the arrows in the drawing. In this case, when the plurality of rolls 6 are forwardly rotated in the same direction as the single plate transfer direction and the LVL is transferred in the same direction as the single plate transfer direction and in the opposite direction via the drive source 7 at the appropriate time. Controls the operation of the roll conveyor H through the drive source 7 so that the plurality of rolls 6 are rotated forward and backward (see the examples of FIGS. 13 and 14). Further, initially, when the ruler of the preceding single plate 1h is performed, as shown in FIG. 2 (a), the ruler mechanism G1 is set to the operating state, the ruler mechanism G2 is set to the resting state, and then the following is performed. When the ruler of the single plate 1m is taken out, as shown in FIG. 2B, the push-up bar 8 is raised through the lifting mechanism 9 of the single plate retracting mechanism J, and the single plate 1h is moved to the roll conveyor H. After temporarily retracting from the transfer path, the operation of each of the ruler dispensing mechanisms G1 and G2 and the single plate retracting mechanism J is controlled so that the ruler dispensing mechanism G2 is in an operating state.

  The single plate ruler according to the present invention is configured as described above, for example, and its operation mode will be described in detail together with a more detailed control mode of the control mechanism M. When performing the ruler, as shown in FIG. 2 (a), the push-up bar 8 of the single plate retracting mechanism J is made to stand by at the lowered position, and the ruler mechanism G1 is in an operating state (the ruler 4 stands up). When the ruler feeding mechanism G2 is in a rest state (the ruler 4 is overturned) and is further controlled by the control mechanism M so as to cause the roll 6 of the roll conveyor H to rotate forward in the direction of the arrow shown in FIG. Although transported in series, the ruler of the single plate 1h is eventually made by the front end portion of the preceding single plate 1h coming into contact with the ruler 4 of the ruler dispensing mechanism G1.

  When the ruler detector K1 detects that the front end portion of the single plate 1h has been ruled out along the ruler 4 of the ruler dispensing mechanism G1, and sends a detection signal to the control mechanism M, the control mechanism M As illustrated in FIG. 2 (b), the push-up bar 8 of the veneer retracting mechanism J is raised to temporarily retract the veneer 1h from the transport path of the roll conveyor H, and then the ruler feeding mechanism G2 is operated. The operation of each mechanism is controlled so as to be in a state. If necessary, when the push-up bar 8 is raised, control for stopping the normal rotation of the roll 6 of the roll conveyor H for a while may be performed. Further, it is sufficient that the ruler feeding mechanism G1 is controlled so that at least the veneer 1h is returned to the conveyance path of the roll conveyor H before being put into a resting state.

  Further, when the transfer of the single plate 1m by the roll conveyor H is continued (or restarted), the front end portion of the single plate 1m eventually becomes the ruler 4 of the ruler feeding mechanism G2, as illustrated in FIG. By the contact, the ruler detector K2 detects that the single plate 1m is ruled out, and further, that the front end of the single plate 1m is ruled out along the ruler 4 of the ruler mechanism G2. When the detection signal is transmitted to the control mechanism M, the control mechanism M temporarily stops the forward rotation of the roll 6 of the roll conveyor H for a while as illustrated in FIG. The operation of each mechanism is controlled so that the push-up bar 8 of the single plate retracting mechanism J is lowered and the single plate 1h is returned to the transport path of the roll conveyor H.

  Through the series of controls and operations as described above, the alignment of the rear end of the preceding single plate 1h and the front end of the subsequent single plate 1m is completed without any trouble, together with the ruler of each single plate 1h and 1m. To do. Then, after that, the normal rotation of the roll 6 of the roll conveyor H is resumed, and the single plates 1h and 1m may be supplied to desired positions in accordance with the example of FIG.

  FIG. 3 is a side explanatory view of another example of the single plate ruler according to the present invention, and a ruler mechanism having the same configuration as the ruler mechanism and the ruler detector in the example of FIG. Each of the three ruler detectors is provided, and instead of the push-up type single plate retracting mechanism in the example of FIG. 1, two lifting type single plate retracting mechanisms are provided, It is configured to be able to perform ruler extraction and alignment.

  That is, in FIG. 3, N1 and N2 are single plate retracting mechanisms having a fork-shaped lifting arm 11, a lifting arm 12 including a fluid cylinder, a cam, etc. The example shown in FIG. 1 is attached to a roll conveyor H that transfers three single plates 1u, 1v, and 1w in series so as to be compatible with the mechanisms G1, G2, and G3 and the ruler detectors K1, K2, and K3. Based on the control of the control mechanism M1, which has a configuration in accordance with the configuration of the control mechanism M in (the increased number of mechanisms to be controlled increases the number of control repetitions), the timely lifting mechanism 12 is used. The lifting arm 11 is moved up and down in the direction of the arrow as shown by the solid line and the dotted line, and the preceding single plates 1u and 1v are individually temporarily retracted from the transfer path of the roll conveyor H.

  The operation mode of the single plate ruler illustrated in FIG. 3 will be described in detail together with a more detailed control mode of the control mechanism M1, and initially, when performing the ruler of the preceding single plate 1u, the solid line in FIG. As shown in FIG. 4, the lifting arms 11 of the single-plate retracting mechanisms N1 and N2 are made to stand by at the lowered position, the ruler feeding mechanism G1 is in an operating state (the ruler 4 is upright), and the ruler feeding mechanisms G2 and G3 are in a resting state ( If the ruler 4 is overturned) and further controlled by the control mechanism M1 to cause the roll 6 of the roll conveyor H to rotate forward in the direction of the arrow in the figure, the single plates 1u, 1v, and 1w are transferred in series in the direction of the arrow in the figure. Eventually, the front end portion of the preceding veneer 1u comes into contact with the ruler 4 of the ruler feeding mechanism G1, and the ruler of the veneer 1u is performed.

  Then, when the ruler detector K1 detects that the front end of the single plate 1u has been ruled out along the ruler 4 of the ruler dispensing mechanism G1, and transmits a detection signal to the control mechanism M1, the control mechanism M1 As illustrated in FIG. 4A, after the lifting arm 11 of the single plate retracting mechanism N1 is raised to temporarily retract the single plate 1u from the transport path of the roll conveyor H, the ruler feeding mechanism G2 is in an operating state. The operation of each mechanism is controlled as follows. If necessary, when the lifting arm 11 is raised, it is possible to perform control for temporarily stopping the forward rotation of the roll 6 of the roll conveyor H. Further, it is sufficient that the ruler feeding mechanism G1 is controlled so that at least the single plate 1u is returned to the conveyance path of the roll conveyor H before being put into a resting state.

  Further, when the transfer of the single plates 1v and 1w by the roll conveyor H is continued (or resumed), the front end of the single plate 1v eventually becomes the ruler of the ruler-feeding mechanism G2 as illustrated in FIG. 4, the ruler detector K2 detects that the single plate 1v is ruled out and then the front end of the single plate 1v is ruled out along the ruler 4 of the ruler mechanism G2. When the detection signal is transmitted to the control mechanism M1, the control mechanism M1 raises the lifting arm 11 of the single plate retracting mechanism N2 as illustrated in FIG. After temporarily retracting from the path, the operation of each mechanism is controlled so that the ruler dispensing mechanism G3 is in an operating state. If necessary, when the lifting arm 11 is raised, it is possible to perform control for temporarily stopping the forward rotation of the roll 6 of the roll conveyor H. Further, it is sufficient that the ruler feeding mechanism G2 is controlled so that at least the single plates 1u and 1v are returned to the transport path of the roll conveyor H.

  Further, when the transfer of the single plate 1w by the roll conveyor H is continued (or resumed), the illustration is omitted, but eventually the front end of the single plate 1w comes into contact with the ruler 4 of the ruler feeding mechanism G3. The ruler detector K3 detects that the single plate 1w has been ruled out, and the front end of the single plate 1w has been drawn along the ruler 4 of the ruler mechanism G3, and controls the detection signal. When transmitted to the mechanism M1, the control mechanism M1 stops the forward rotation of the roll 6 of the roll conveyor H for a while, puts the ruler feeding mechanism G3 into a paused state, and lowers the lifting arms 11 of the single plate retracting mechanisms N1 and N2. Thus, the operation of each mechanism is controlled so that the single plates 1u and 1v are returned to the transport path of the roll conveyor H.

  By a series of control and operation as described above, together with the ruler of each single plate 1u, 1v, 1w, alignment of the rear end portion of the preceding single plate 1u and the front end portion of the subsequent single plate 1v, In addition, the alignment between the rear end portion of the single plate 1v and the front end portion of the single plate 1w subsequent thereto is completed without any trouble. Then, after that, the normal rotation of the roll 6 of the roll conveyor H is resumed, and the single plates 1u, 1v, and 1w may be supplied to desired positions according to the example of FIG.

  Incidentally, in addition, the single plate 1v corresponds to a single plate that follows the single plate 1u, but has a double-sided property that corresponds to a single plate that precedes the single plate 1w. Such a relative double-sided relationship is obtained by transferring all of the three or more single plates in series except for the leading single plate and the last single plate. This is a property common to single plates.

  FIG. 5 is a side explanatory view of still another example of the single plate ruler according to the present invention, and FIG. 6 is a front explanatory view of the single plate ruler illustrated in FIG. In place of the roll conveyor having the cylindrical roll in the example 1, a roll conveyor having a barbed roll is provided, and instead of a ruler-feeding mechanism having a turn-up / down ruler, a lifting / lowering ruler is used. In addition to the push-up type single plate retracting mechanism, the structure is greatly changed, such as a suction type single plate retracting mechanism. This is different from the first example.

  That is, in FIGS. 5 and 6, P is a roll conveyor having a drive source 14 composed of a plurality of scissors rolls 13, a servo motor / clutch & brake motor, etc. 14 is provided parallel to the upper side (obliquely upward) of the front conveyor C and the auxiliary conveyor D in the example of FIG. 14, and rotates in the direction of the arrow shown in the figure based on the control of the control mechanism M2, which will be described later. The single plates 1n and 1r coated with 3 are transferred in series in the direction of the arrow shown in the figure.

  Q is a ruler dispensing mechanism composed of a fixed ruler, which is provided at the end of the roll conveyor P, and dispenses the preceding single plate 1n.

  Q1 is a ruler-feeding mechanism having a ruler operating mechanism 16 composed of an elevating / retracting ruler 15, a fluid cylinder, a cam, etc., and the length of the single plate 1n (1r) in the transfer direction from the ruler-feeding mechanism Q. Is attached to the roll conveyor P with an interval L equal to the length W, and is operated in a timely manner based on the control of the control mechanism M2 to be described later. The rear end portion of the plate 1n and the front end portion of the subsequent single plate 1r are aligned together.

  R1 and R2 are suction hoods F having a single plate suction function and a release function (the bellows tube connected to the suction hood F, a suction machine, etc. are not shown), a lifting / lowering for a suction hood comprising a fluid cylinder, a servo motor, etc. An adsorption-type single plate retracting mechanism also serving as a single plate supply mechanism having a mechanism 17, a moving base 18, a guide rail 19, a moving screw 20, a driving source 21 for a moving screw composed of a servo motor, a step motor, etc. A roll conveyor P is provided adjacent to the ruler detection mechanisms Q and Q1 and ruler detectors K1 and K2 having the same configuration as the example of FIG. 1, and based on the control of the control mechanism M2 to be described later. The suction hood F is moved up and down in the direction of the arrow as shown by the solid line and the dotted line through the timely lifting mechanism 17, and the lifting mechanism 17 (and the suction hood are also connected through the timely moving screw 20, the drive source 21 and the like. ) Is moved back and forth in the direction of the arrow as shown by the solid and dotted lines, so that the single plates 1n and 1r transferred by the roll conveyor P are individually evacuated individually from the transfer path of the roll conveyor P, together with the front The single plates 1n and 1r are supplied to predetermined positions on the upper side of the single plates 1h and 1m (or LVL2) transferred through the conveyor C and the auxiliary conveyor D.

  M2 is a control mechanism for controlling the operation of the roll conveyor P, the ruler feeding mechanism Q1, the single plate retracting mechanisms R1 and R2, etc., and the single plates 1n and 1r coated with the adhesive 3 are serially shown in the direction of the arrows. When transporting to the roll, the operation of the roll conveyor P is controlled so that the plurality of brazed rolls 13 are rotated in the direction indicated by the arrow through the drive source 14. Further, initially, when the ruler of the preceding single plate 1n is performed, as shown in FIG. 5 and FIG. 6, the ruler dispensing mechanism Q1 is put in a rest state, and then the subsequent single plate 1r is ruled. In this case, as illustrated in FIGS. 7A and 7B, the suction hood F is moved up and down via the lifting mechanism 17 of the single plate retracting mechanism R1, and the preceding single plate 1n is moved from the transfer path of the roll conveyor P. After evacuating continuously, the operation of the ruler mechanism Q1 is controlled so that the ruler mechanism Q1 is in an operating state. Then, after the ruler of the succeeding veneer 1r is performed, as shown in FIGS. 7 (c), 8 (a) and (b), the suction hood is provided via the lifting mechanism 17 of the veneer retracting mechanism R2. F is moved up and down, and the veneer 1r is continuously retracted from the transfer path of the roll conveyor P, and each suction hood F is moved above the front conveyor C through the timely moving screw 20, the drive source 21 and the like. Further, the suction hoods F are moved up and down through the lifting mechanisms 17 of the single plate retracting mechanisms R1 and R2, and the single plates 1n and 1r are transferred through the front conveyor C and the auxiliary conveyor D (single plates 1h and 1m). Alternatively, the operation of each single plate retracting mechanism R1 and R2 is controlled so as to be supplied to a predetermined position on the upper side of LVL2).

  5 and FIG. 6 will be described in detail together with a more detailed control mode of the control mechanism M2, when initially performing the ruler of the preceding single plate 1n, FIG. As illustrated by the solid line in FIG. 6, the suction hoods F of the single plate retracting mechanisms R1 and R2 are put on standby at the raised position above the roll conveyor P, and the ruler feeding mechanism Q1 is in a pause state (the ruler 15 is lowered). When the control mechanism M2 controls the barbed roll 13 of the roll conveyor P to rotate in the direction indicated by the arrow, the single plates 1n and 1r are transferred in series in the direction indicated by the arrow. When the front end of the plate abuts on the ruler-measuring mechanism Q, the ruler of the single plate 1n is performed.

  Then, when the ruler detector K1 detects that the front end of the single plate 1n has been ruled out along the ruler dispensing mechanism Q and transmits a detection signal to the control mechanism M2, the control mechanism M2 is shown in FIG. As illustrated in FIG. 7B, the suction hood F of the single plate retracting mechanism R1 is lowered to suck the single plate 1n, and then, as illustrated in FIG. After raising and continuously retracting the single plate 1n from the conveyance path of the roll conveyor P, the operation of each mechanism is controlled so that the ruler feeding mechanism Q1 is in an operating state. In addition, when raising the adsorption | suction hood F as needed, you may implement control which stops rotation of the brazing roll 13 of the roll conveyor P for a while.

  Further, when the transfer of the single plate 1r by the roll conveyor P is continued (or resumed), the front end portion of the single plate 1r eventually comes into contact with the ruler 15 of the ruler feeding mechanism Q1 as illustrated in FIG. The ruler detector K2 detects and detects that the ruler of the single plate 1r has been touched by contact, and that the front end of the single plate 1r has been drawn along the ruler 15 of the ruler mechanism Q1. When the signal is transmitted to the control mechanism M2, the control mechanism M2 lowers the suction hood F of the single plate retracting mechanism R2 to suck the single plate 1r, and then, as illustrated in FIG. The operation of each mechanism is controlled so that the suction hood F of the mechanism R2 is raised and the single plate 1r is continuously retracted from the transport path of the roll conveyor P.

  Further, the suction hood F of the single plate retracting mechanism R1 that sucks the single plate 1n through the moving screw 20, the drive source 21 and the like is preceded (or illustrated) as shown in FIG. Is omitted, but the suction hood F of the single plate retracting mechanism R2 that sucks the single plate 1r is moved above the front conveyor C, and the suction hoods F are lowered individually (or together) sequentially. Then, the operation of each mechanism is controlled so that the single plates 1n and 1r are supplied to a predetermined position above the single plates 1h and 1m (or LVL2) transferred via the front conveyor C and the auxiliary conveyor D.

  By the series of control and operation as described above, the ruler of each single plate 1n · 1r is aligned, the rear end portion of the preceding single plate 1n is aligned with the front end portion of the subsequent single plate 1r, and each single plate 1n · The supply to the predetermined position of 1r is completed without any trouble. It should be noted that the ruler feeding mechanism Q1 only needs to be controlled so that at least the single plate (1s) to be processed next time arrives at the position of the ruler feeding mechanism Q1, and each single plate retracting mechanism R1. It is sufficient to control the suction hood F of R2 to return to the initial standby position at least until the single plate to be processed next time is determined.

  For this reason, the ruler-feeding mechanism having the turn-in / out-type ruler in the example of FIGS. 1 and 3 and the ruler-out mechanism having the up-and-down-and-out type ruler in the examples of FIGS. 5 and 6 are replaced with each other. 5 and FIG. 6 in place of the push-up type single plate retracting mechanism in the example of FIG. 1 or the lifting type single plate retracting mechanism in the example of FIG. The configuration of the single plate ruler according to the present invention, such as a suction type single plate retracting mechanism (excluding moving members such as moving screws) in the present invention, is the form of each of the above examples. However, the present invention is not limited to the above, and various design changes can be made.

  First, as the single plate transfer mechanism, the roll conveyor of each of the above examples is appropriate from the viewpoint of ease of ruler out, but it is not necessarily limited. For example, a chain conveyor, a belt conveyor ( In short, any transfer mechanism that can transfer a single plate in series is sufficient, as long as the single plate can be ruled out.

  Next, as a single-plate ruler feeding mechanism, as shown in FIG. 9, for example, as shown in FIG. The entrance / exit ruler 22 is slanted via a ruler actuating mechanism 23 composed of a fluid cylinder, a cam and the like based on the control of a control mechanism (not shown) having a configuration similar to that of the control mechanism in the example of FIG. There is no problem even if it is the ruler mechanism U1 (U2) that is projected and retracted in the direction. In short, any structure that can perform the required ruler function and alignment function is sufficient, and each single plate is maintained. As shown in the examples of FIGS. 5 and 6, the ruler for the foremost single plate in the case of adopting the control form that automatically retracts from the transfer path of the transfer mechanism can be fixed. is there.

  Incidentally, since the front and rear end faces of a single plate are usually formed perpendicular to the plate surface of the single plate as in the respective examples, in general, each ruler is used as in the respective examples. It is appropriate that the interval L of the single plate is equal to the length W in the transfer direction of the single plate. For example, as illustrated in FIG. 10, the front and rear end surfaces of the single plate 1w (1x) are When formed obliquely, it is necessary to make the length (total length including the oblique portion) W1 of the single plate 1w (1x) different from the interval La of the ruler. There are not a few examples of distortion (rectangular error) in the shape of a single plate due to error, shrinkage due to drying, and so on. As illustrated, if the distance Lb between the rulers is set to the length W + Δα in the transfer direction of the single plate 1h (1m), the single plate 1h · 1m The gap between the rulers is such that the gap Δα is intentionally small (preferably inconspicuous in terms of the appearance of the LVL) between the portions, and the lap between the ends can be avoided appropriately. However, it is not always necessary to be completely equivalent to the length of the veneer in the transfer direction, and it is sufficient to determine the length of the veneer according to the length of the veneer in consideration of conditions such as the shape of the veneer. The distance may be varied according to the length of the single plate in the transfer direction so that three or more single plates of different lengths can be sequentially and repeatedly transferred.

  In addition, when the front and rear end faces of each single plate are formed obliquely with respect to the plate surface, the retracting direction, moving direction, and moving order of each single plate so that the end faces of each single plate can overlap each other without any hindrance. It is necessary to appropriately set the orientation of the front and rear end faces of each single plate according to various conditions such as the above.

  Next, as the single-plate retracting mechanism, in addition to the push-up single-plate retracting mechanism, the lifting-type single-plate retracting mechanism, and the suction-type single-plate retracting mechanism of the above-described examples, for example, as illustrated in FIG. A control mechanism (not shown) having a configuration similar to the configuration of the control mechanism in the example of FIG. 1 is provided with a separate drive source 7 by separating a part H1 of the single plate transfer mechanism H from other parts. Based on the control, the part of the transfer mechanism H1 is moved up and down as shown by the solid line and the dotted line through the lift mechanism 25 for the transfer mechanism including the lift 24, the fluid cylinder, the cam, etc. Even in the single plate retracting mechanism V also serving as a mechanism, or although not shown, for example, instead of the suction hood in the examples of FIGS. 5 and 6, a sticking member having a single plate sticking function and A puncture release member having a puncture release function, and piercing a veneer Even if it is a sticking-type veneer retracting mechanism designed to avoid (and move laterally if necessary), the important point is that the veneer is individually or temporarily separated from the transfer path of the transfer mechanism. It is sufficient if it has a function of saving, and there is no particular restriction on the direction of the saving, and for example, the direction of rotation shown in FIG. 12 can be used.

  That is, in FIG. 12, each of Y1 and Y2 includes a suction hood F1 having a single plate suction function and a release function (the suction machine connected to the suction hood F1 is not shown) and is appropriately rotated. Via a mechanism (not shown) (when the LVL is extremely multi-layered, etc., if necessary, it is also accompanied by a lifting mechanism (not shown)), and reciprocally pivots in the direction of the arrow shown (if necessary, A suction-type single-plate retracting mechanism that also serves as a single-plate supply mechanism that can be moved up and down in the direction of the arrow in the figure, and has a control mechanism (illustrated) that is similar to the configuration of the control mechanism M2 in the examples of FIGS. Based on the control of (omitted), via the transfer mechanism H separately provided in parallel to the upper side (diagonally upward) of the front conveyor C and the auxiliary conveyor D in the example of FIG. 13 and FIG. Single plate (1v, 1u, etc.) to be transferred is a ruler dispensing mechanism Q / Q1 LVL2 is rotated so as to continuously retract each single plate (1v, 1u, etc.) from the transfer path of the transfer mechanism H, and is transferred via the front conveyor C and the auxiliary conveyor D. Each single plate (1v, 1u, etc.) is sequentially supplied individually (or together) to a predetermined position above (or a single plate).

  In addition, although not shown in the drawings as needed, the push-up type single plate retracting mechanism in the example of FIG. 1, the lifting type single plate retracting mechanism in the example of FIG. A moving table, guide rails, moving screws, etc. as shown in the examples of FIGS. 5 and 6 are attached to the stab-type single-plate retracting mechanism, etc., and as shown in the examples of FIGS. If a single auxiliary transfer mechanism is provided in parallel with the original transfer mechanism in addition to the transfer mechanism, the veneer can be continuously used in the same manner as in the examples of FIGS. It is also possible to change to a method of evacuating from the transfer path of the transfer mechanism.

  In the case of adopting a method in which the single plate is continuously withdrawn from the transfer path of the transfer mechanism, the single plate save mechanism is configured to be movable in the same direction as the single plate transfer direction. Although it is not impossible to set the required number of bases to a minimum, it is not appropriate from the viewpoint of efficiency because it lacks quick response, and from the practical point of view, as shown in the examples of FIGS. It is preferable to provide the same number of single plate retracting mechanisms as the single plates to be transferred together. On the other hand, when the method of temporarily retracting the veneer from the transfer path of the transfer mechanism is used, since the last veneer is unnecessary, the required number of the transfer mechanism is the same as that of the veneer to be transferred together. One less than the number is enough.

  Furthermore, if necessary, although not shown, a single plate width adjusting mechanism that aligns the position of one side surface of each single plate to the same line is provided along with the transfer mechanism, and a ruler for each single plate is provided. Prior to unloading, the position of one side of each single plate can be provisionally aligned with the same line, and if each single plate is not accurately shaped into a rectangle, As a result, even if the position of the side surface of each veneer swings slightly obliquely with respect to the line, the position of the side surface of the entire veneer is almost aligned with the same line, which is effective for improving the quality of LVL, improving yield, etc. is there.

  Incidentally, the single plate ruler method and single plate ruler device as described above can be applied to and used for ruler and alignment of plate-like objects other than single plates.

It is side explanatory drawing of the ruler apparatus of the single plate which concerns on this invention. FIG. 2 is a side operation explanatory diagram of the single plate ruler illustrated in FIG. 1; It is side surface explanatory drawing of another example of the ruler apparatus of the single plate which concerns on this invention. FIG. 4 is a side operation explanatory diagram of the single plate ruler illustrated in FIG. 3. It is side surface explanatory drawing of another example of the ruler apparatus of the single plate which concerns on this invention. It is front explanatory drawing of the ruler apparatus of the single plate illustrated in FIG. FIG. 7 is a side operation explanatory diagram of the single plate ruler illustrated in FIGS. 5 and 6. FIG. 7 is a front operation explanatory diagram of the single plate ruler illustrated in FIGS. 5 and 6. It is side surface explanatory drawing of another example of the ruler delivery mechanism of a single plate. It is side surface explanatory drawing for demonstrating the relative positional relationship of a ruler and a single plate. It is side surface explanatory drawing for demonstrating the relative positional relationship of a ruler and a single plate. It is front explanatory drawing of another example of the adsorption | suction-type single board retracting mechanism used as a single board supply mechanism. It is side surface process explanatory drawing for demonstrating the manufacturing process of LVL which the present applicant proposed previously. It is side surface process explanatory drawing for demonstrating another manufacturing process of LVL which this applicant proposed previously. It is side surface explanatory drawing of the example provided with the known ruler extraction mechanism in the manufacturing process of LVL of FIG. It is side surface explanatory drawing of the example provided with the known ruler extraction mechanism in the manufacturing process of LVL of FIG.

Explanation of symbols

A: Fixed plate B: Heating plate C: Front conveyor D: Auxiliary conveyor E: Rear conveyor F: Adsorption hood G, G1, G2: Ruler feeding mechanism having a rotary retractable ruler H: Roll having a cylindrical roll Conveyor H1: Part of roll conveyor J: Push-up type single plate retracting mechanism K1 · K2: Ruler detector L · La · Lb: Ruler interval L1 · L2: Distance from the last end of LVL to the ruler M · M1・ M2: Control mechanism N1, N2: Lifting type single plate retracting mechanism P: Roll conveyor having a brazing roll Q: Ruler feeding mechanism comprising a fixed ruler Q1: Ruler feeding mechanism having a lifting and lowering ruler R1. R2, Y1, Y2: Adsorption-type single-plate retracting mechanism also serving as a single-plate supply mechanism U1, U2: A ruler-feeding mechanism having a skewed-in / out-type ruler V: Single-plate retracting mechanism also serving as a transfer mechanism W / W1: Single Transfer direction of the length 1a · 1b · 1c · 1d of: veneer 1e · 1f · 1h · 1m: veneer 1n · 1r · 1s · 1t: veneer 1u · 1v · 1w · 1x: veneer 2: LVL
3: Adhesive 4: Rotating and retracting ruler 6: Cylindrical roll 8: Push-up bar 11: Lifting arm 13: Barbed roll 15: Lifting and retracting ruler 22: Skewing and retracting ruler

Claims (9)

  In the process of transferring a plurality of rectangular veneer veneers in series via a transfer mechanism, in a direction crossing the transfer direction of each veneer veneer via a ruler feeding mechanism attached to the transfer mechanism. When performing the ruler of the end to be copied and the alignment of the rear end of the preceding veneer single plate and the front end of the subsequent veneer single plate, the same number of ruler mechanisms as the veneer single plate to be transferred, The veneer veneer is attached to the transfer mechanism in series with an interval corresponding to the length of the veneer veneer in the transfer direction, and at least the veneer veneer other than the last veneer veneer is individually or temporarily attached to the transfer mechanism. When a veneer retracting mechanism that retracts from the transfer path is attached to the transfer mechanism and the ruler of the preceding veneer veneer is to be ruled, the ruler feeding mechanisms for all subsequent veneer veneers are put in a suspended state and the preceding veneer veneer Do not hinder the transfer of In addition, when performing the ruler of the succeeding veneer veneer, the veneer veneer that has finished the ruler preceding at least immediately before is temporarily or continuously withdrawn from the transfer path of the transfer mechanism via the veneer retracting mechanism. A veneer veneer ruler method, characterized in that it does not hinder the operation of the subsequent veneer veneer ruler mechanism.   In addition to a transfer mechanism that transfers a plurality of rectangular veneer single plates in series and a ruler for the end that follows the direction intersecting the transfer direction of each veneer single plate, the rear end of the preceding veneer single plate And a veneer veneer other than at least the last veneer veneer individually or temporarily, in order to align the front end of the veneer veneer and the following veneer veneer. A veneer single plate ruler having at least an appropriate number of single plate retracting mechanisms attached to the transfer mechanism so as to be retracted from the transfer path of the transfer mechanism, the veneer single plate transferring the ruler mechanism; The number of veneers is equal to the length of the veneer veneer in the transfer direction, and is attached to the transfer mechanism in series. Delivery mechanism When entering the resting state and conducting the ruler of the subsequent veneer veneer, temporarily or continuously remove the veneer veneer that has finished the ruler preceding at least immediately before from the transfer path of the transfer mechanism via the veneer retracting mechanism. A veneer single plate ruler comprising a control mechanism for controlling the operation of each ruler pulling mechanism and the single plate retracting mechanism so that the ruler mechanism for the subsequent veneer single plate is put into operation. Ejecting device.   The veneer veneer ruler according to claim 2, further comprising a conveyor type transfer mechanism.   4. The veneer single plate ruler according to claim 2 or 3, further comprising a ruler-feeding mechanism having a turn-in / out ruler for at least a veneer single plate other than the leading veneer single plate.   4. The veneer single plate ruler according to claim 2 or 3, further comprising a ruler mechanism having a lifting and lowering ruler for at least a veneer single plate other than the leading veneer single plate.   The veneer single plate ruler according to claim 2 or 3, further comprising a ruler-feeding mechanism having a skewed and retracted ruler for at least a veneer single plate other than the leading veneer single plate.   The veneer single plate ruler according to claim 2, 3, 4, 5, or 6, comprising a push-up type single plate retracting mechanism.   7. A veneer single plate ruler according to claim 2, comprising a lifting type single plate retracting mechanism.   The veneer single plate ruler according to claim 2, 3 or 4, or 5 or 6, comprising a suction type single plate retracting mechanism.

Images