JP2007062300A - Method of reeling veneer and apparatus for reeling veneer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reeling method and a winding apparatus which enable further laborsaving and the stabler reeling of veneers than before, bring improved yields of veneers and eliminate useless drying processes, and so on. <P>SOLUTION: A cutting device C is provided between a veneer lathe A forming a veneer strip 2 and a reeling apparatus D. On both sides of the cutting device C, a transport conveyor B1 upstream from it and a transport conveyor B2 downstream from it are installed. They can be driven separately. By the control of an operation controller E1, the strip of a veneer 2 is cut by the cutting device C at a cutting position at which the thickness of the veneer 2 reaches a predetermined thickness. The transport conveyor B1 and the transport conveyor B2 are driven temporarily at different speeds so that the veneers 2 cut and separated on the upstream side and downstream side have a predetermined clearance γ between them. When the clearance γ reaches the position of a reeling shaft 8a located at the reeling position, only the veneer 2 having the predetermined thickness is reeled at least on the front side by feeding a wire 12 to the reeling shaft 8a through a wire feeding nozzle 9 and guiding the veneer 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an improvement in a method for winding a veneer single plate and a winding processing apparatus for a veneer single plate.

  Conventionally, as a technique for labor-saving processing of a veneer veneer cut from a veneer lace (hereinafter simply referred to as a veneer), for example, as disclosed in Patent Document 1, until the outer circumference becomes a perfect circle just before A strip-shaped veneer having a predetermined thickness is cut from a raw wood that has been cut from a non-band-shaped veneer (or from a raw wood that has been previously preliminarily rough-rounded in a round shape as known). A winding device with a wire rod supply mechanism is provided at the rear of the veneer lace to be formed, and a single plate is transferred from the veneer lace to the winding device via a transfer conveyor, and the wire rod supplied from the wire rod supply mechanism is single. A winding process is known in which a single plate is wound on a winding shaft together with a wire rod, positioned on the outer peripheral side of the plate, and if necessary, a veneer lace and a winding are disclosed as disclosed in Patent Document 2. Between the devices, the veneer is parallel to the veneer fiber and against the plate surface It is equipped with a cutting device that cuts in a straight direction. A winding process for avoiding the occurrence of wrinkling and tearing of the plate is already known.

  Further, when performing such winding processing, it is necessary to supply and lock the tip of the wire to the winding shaft of the winding device prior to winding the single plate. For example, as disclosed in Patent Document 3, an engagement portion that engages with the wire rod is provided at an appropriate position of the winding shaft, and the wire rod supply nozzle of the wire rod supply mechanism is used as a transfer conveyor. The tip of the wire rod, which is fixed to the inner space (with respect to the transfer conveyor) and stored below the transfer conveyor, is blown toward the engagement portion of the take-up shaft by compressed air, A technology in a form in which the tip of the wire is engaged and sequentially fed out, or as disclosed in, for example, Patent Document 4, the wire supply nozzle of the wire supply mechanism is movable up and down and back and forth at the rear of the winding shaft. And is initially located above the rear of the winding shaft. The state where the tip of the wire is supplied from the upper side of the winding shaft through the wire supply nozzle so as to block the passage of the single plate provided on the transfer conveyor, and then the tip of the wire blocks the passage of the single plate The wire supply nozzle is lowered and advanced to the lower side of the winding shaft while maintaining the above, and the tip of the wire rod is wound around the winding shaft by the tip of the single plate to be transferred, and the technique of sequentially feeding it out. It is known.

Incidentally, the technique disclosed in Patent Document 3 has a relatively simple overall structure, and is not necessarily required to supply a transfer conveyor or the like when the tip of the wire is engaged with the engaging portion of the winding shaft. While there is an advantage that it is not necessary to stop the wire, each time winding is completed, if the wire is not cut once using a heater or the like, a single plate unsuitable for winding such as a non-band single plate is transferred. It has a drawback that it cannot be transferred and discharged to the rear of the winding device via the conveyor. On the other hand, the technique disclosed in Patent Document 4 has a problem that the overall structure is slightly complicated, but if necessary, the wire supply mechanism is separated from the transfer conveyor together with the winding shaft for a while. After the single plate unsuitable for winding is transferred / discharged to the rear of the winding device via the transfer conveyor, the wire rod feeding mechanism is lowered / returned to the winding position of the transfer conveyor together with the winding shaft. By this, it is the feature that it has the advantage that another single plate can be piled up and wound around the single plate wound up previously.
Japanese Patent Publication No. 4-17768 Japanese Patent Publication No. 4-17769 Japanese Patent Publication No. 2-26565 Japanese Patent Laid-Open No. 11-193151

  By the way, as described above, when a strip-shaped veneer having a predetermined thickness is cut from a log whose outer circumference is a perfect circle, at least one round of the outer circumference of the log is provided on the front end side and the rear end side of the strip-shaped veneer. Over a weak length, the thickness is the required thickness (in general, around 90% of the predetermined thickness is the thinner tolerance range, but is not limited to around 90%, If necessary, the wedge-shaped part which does not satisfy the requirement may be included, but the wedge-shaped part has defects that cause various adverse effects in later processing steps. In particular, the tip side is a problem because it is an incentive to hinder smooth winding. In other words, the tip side is usually wedge-shaped with gradually increasing thickness, and the leading edge is extremely thin and weak, so if it is affected by air resistance during transfer or winding, it will be bent or wrinkled. As a result, the attitude of the beginning of winding is deteriorated and the subsequent smooth winding is hindered. However, if an error occurs in the gripping position at the center of rotation when re-peeling the raw wood that has been formed by roughly exfoliating the outer circumference into a perfect circle in advance, the thin fragile portion will become unevenly longer. Since it is deleted, the probability that the harmful effects described above are induced is further increased. Further, the rear end side where the thickness gradually decreases is also likely to be an incentive to hinder smooth transfer because the leading edge is bent or wrinkled during rewinding, which is the reverse of winding. In addition, for example, when the wound veneer is rewound as it is and put into a dryer for drying treatment, there is a problem that drying of the wedge-shaped portion is wasted, or for example, the wedge-shaped portion There is a possibility that a part may be mistakenly mixed with a product (plywood / single-plate laminated material, etc.) and a product with uneven thickness may be produced.

  Therefore, in the conventional single plate processing step, an operator is arranged on the side of the transfer conveyor, and the thickness measured by the operator attached to the front end side or the front end side and the rear end side is the required thickness. At least some measures have been taken to make the winding process smoother by carrying out the work of tearing and removing the wedge-shaped part that is less than 3 by hand and removing it from the transfer conveyor. In addition to simply hindering labor saving, the correct coping method will result in excessive or insufficient removal due to the determination of the removal position by visual inspection and inaccurate tearing by hand. It is necessary to accurately cut and mold, and as a result, excessive cutting with an infrequent frequency is unavoidable, which is a bad cause of reducing the single plate yield.

  The present invention has been developed to eliminate the above-mentioned conventional problems / defects and the disadvantages of the conventional coping method. Specifically, as an effective processing method, a log whose outer periphery is a perfect circle is used. Transfer the cut veneer to the take-up device provided at the rear of the veneer lace through a transfer conveyor provided in association with the veneer lace cutting the belt-like veneer having a predetermined thickness. A winding method for a single plate, in which a wire supplied from a wire supply mechanism attached to a winding device is positioned on the outer peripheral side of the single plate, and the single plate is wound around a winding shaft together with the wire. In order to cut the plate in a direction parallel to the veneer fiber and in a direction perpendicular to the plate surface, at least cutting is performed using a cutting device having a veneer detection mechanism provided between the veneer lace and the winding device. The position where the thickness on the tip side of the single plate reached the required thickness Further, the upper side of the transfer conveyor in the single plate transfer direction and the lower side of the single plate transfer direction are separated so that they can be driven individually, with the position of the cutting device or an appropriate position behind the cutting device as a boundary. And a provisional speed difference between the upper side and the lower side of the transfer conveyor in a timely manner, thereby creating a desired width interval between the preceding single plate and the subsequent single plate. When the winding shaft at the winding position is reached, by supplying the wire to the winding shaft, only a single plate having a required thickness is wound together with the wire at least on the tip side. A single plate winding processing method (claim 1) characterized in that, and the position where the thickness of the rear end side of the cut single plate is less than the required thickness, The veneer is cut by a cutting device and separated A speed difference is temporarily provisionally provided between the upper side and the lower side of the bear, and a desired width interval is generated between the cut preceding single plate and the subsequent single plate, and the interval is set at the winding position. When the position of a certain take-up shaft is reached, the take-up shaft or the take-up shaft and the wire supply member of the wire supply mechanism are separated above the transfer conveyor so that the rear end side has a required thickness. The single plate winding method according to claim 1 wherein only the plate is wound together with the wire (Claim 2), and the center of gravity of the cut preceding single plate is transferred to the lower transfer conveyor. In the state where the center of gravity of the following single plate has not been transferred to the lower transfer conveyor, the driving of the upper transfer conveyor or the upper transfer conveyor and the veneer race is temporarily stopped. By the upper side and lower side of the transfer conveyor 3. A method of winding a single plate according to claim 1 or 2, wherein a difference in speed is provided, and an interval of a desired width is generated between the preceding single plate and the subsequent single plate. ), And the center of gravity of the cut preceding single plate is transferred to the lower transfer conveyor, and the center of gravity of the subsequent single plate is not transferred to the lower transfer conveyor, By increasing the speed of the lower transfer conveyor for a while, there is a speed difference between the upper and lower transfer conveyors, creating a desired width between the preceding veneer and the subsequent veneer. A single plate winding method (claim 4) according to claim 1 or claim 2 is proposed.

  Furthermore, as a processing apparatus used for carrying out the processing method, a wire rod supply mechanism provided at the rear of a veneer lace for cutting a strip-shaped veneer having a predetermined thickness from a log whose outer periphery is a perfect circle is provided. At least a transfer conveyor for transferring the veneer laced single plate to the take-up device, and positioning the wire supplied from the wire supply mechanism on the outer peripheral side of the single plate, A single plate winding processing device for winding a single plate on a winding shaft together with a single plate detection mechanism between the veneer lace and the winding device, the single plate being parallel to the single plate fiber And a cutting device that cuts in a direction perpendicular to the plate surface, and the transfer conveyor is separated from the upper side in the single plate transfer direction by using the position of the cutting device or an appropriate position behind the cutting device as a boundary. Separately drive separately from the lower side of the plate transfer direction In preparation, and further, based on the detection signal of the single plate detection mechanism, cutting to cut the single plate at a position where the thickness of the tip side of the cut single plate has reached the required thickness Timely and tentative speeds on the upper and lower sides of the transfer conveyor so that the desired width is created between the control function that controls the operation of the device and the cut and preceding veneer. In order to provide a difference, a control function for controlling the operation of the transfer conveyor separately in the up and down direction, and when the interval of the desired width reaches the position of the winding shaft at the winding position, the wire rod is supplied to the winding shaft. And an operation control device having a control function for controlling the operation of the wire supply mechanism, and only a single plate having a required thickness at least on the tip side is wound together with the wire. Single plate winding processing device Claim 5) and a control function for controlling the operation of the cutting device so as to cut the veneer, with the position where the thickness of the rear end side of the cut veneer does not reach the required thickness as a cutting point, Also, at the rear end side, the upper side and the lower side of the separated transfer conveyor are temporarily and temporally arranged so that a desired width is generated between the cut preceding single plate and the subsequent single plate. In order to provide a speed difference, a control function for controlling the operation of the transfer conveyor separately up and down, and when the interval of the desired width reaches the position of the winding shaft at the winding position, the winding shaft or the winding shaft and An operation control device additionally having a control function for temporarily stopping or decelerating the driving of the lower transfer conveyor so as to ensure a treatment period sufficient to separate the wire supply member of the wire supply mechanism above the transfer conveyor With the required thickness on the rear end side. 6. A single plate take-up processing device (Claim 6), wherein only a single plate having a thickness can be wound together with a wire, and the center of gravity position of the cut preceding single plate is poor. In the state where the center of gravity of the succeeding single plate is not transferred to the lower transfer conveyor, the upper transfer conveyor or the upper transfer conveyor and veneer lace are transferred. 6. An operation control device having a control function for controlling the operation of the transfer conveyor separately up and down so as to provide a speed difference between the upper side and the lower side of the transfer conveyor by pausing the drive for a while. The single plate winding processing apparatus according to Item 6 (Claim 7) and the gravity center position of the cut preceding single plate are transferred to the lower transfer conveyor, and the gravity center position of the subsequent single plate is On the lower transfer conveyor In the state where it is not on board, the speed of the transfer conveyor on the lower side is increased for a while so that the operation of the transfer conveyor is controlled separately so as to create a speed difference between the upper side and the lower side of the transfer conveyor. A single-plate winding processing device according to claim 5 or claim 6 (claim 8), comprising an operation control device having a control function.

  According to the method for winding a single plate according to claim 1, at least a wedge-shaped portion having a thickness less than a required thickness attached to the distal end side of the belt-like single plate is cut without excess or deficiency, A gap having a desired width is generated between the preceding wedge-shaped portion and the succeeding normal veneer, and the wire is supplied to the take-up shaft using the gap, and at least the required thickness is provided at the tip side. Since only the single plate having the wire is wound together with the wire, it is possible to perform a smooth winding process from the beginning to the labor-saving, and to dry the wedge-shaped part on the tip side wastefully. It is possible to prevent the occurrence of various adverse effects, such as the fact that the wedge-shaped portion on the front end side is mistakenly mixed with the product, or the single plate yield on the front end side is reduced. In addition, according to the method for winding a single plate according to the second aspect, a wedge-shaped portion whose thickness associated with the rear end side of the belt-like single plate is less than a required thickness is cut without excess or deficiency. The trailing edge is formed by generating a desired width interval between the following wedge-shaped portion and the preceding normal veneer, and using the interval to separate at least the winding shaft above the transfer conveyor. Since only the single plate having the required thickness is wound together with the wire, the wedge-shaped part on the rear end side is dried wastefully, or the wedge-shaped part on the rear end side is removed. It is possible to prevent various adverse effects such as erroneously mixing into the product or reducing the single plate yield on the rear end side, and smooth transfer during rewinding is also possible. Furthermore, according to the method for winding a single plate according to the third or fourth aspect, the desired width can be easily generated. Still further, for the implementation of the single plate winding processing method according to claim 1, the single plate winding processing device according to claim 5 is used for the single plate winding processing method according to claim 2. For implementation, the single plate winding processing apparatus according to claim 6 is used. For the single plate winding processing method according to claim 3, the single plate winding processing apparatus according to claim 7 is used. The single plate winding processing apparatus according to the eighth aspect can be used for carrying out the single plate winding processing method according to the fourth aspect.

  Hereinafter, the present invention will be described in more detail together with an example of the embodiment illustrated in the drawings, but when referring to the types and modes of the equipment used for the implementation in advance, the veneer lace used for cutting the veneer is illustrated in the drawings. Any type of veneer lace known in the art may be used as long as it can cut a strip-shaped veneer having a predetermined thickness from a log whose outer periphery is a perfect circle. There is no particular restriction on other forms as long as the upper side and the lower side in the veneer transfer direction can be individually driven. . In addition, the cutting device for cutting a single plate is not limited to the type illustrated in the drawings. In short, the single plate can be cut in a direction parallel to the single plate fiber and perpendicular to the plate surface. If so, the existing various types of cutting devices can be used, and the single plate detection mechanism provided in the cutting device is also important when the thickness of the single plate to be detected reaches the required thickness. As long as the single plate detection signal can be transmitted, there is no particular limitation on the format. Furthermore, with regard to the winding device, including the type of the wire supply mechanism to be attached, the point is that the wire is positioned on the outer peripheral side of the single plate, and the single plate can be wound around the winding shaft together with the wire. If so, there may be various conventionally known types.

  FIG. 1 is a schematic side view of a single-plate winding processing apparatus according to the present invention, and FIGS. 2 to 11 are operation explanatory views of the single-plate winding processing apparatus illustrated in FIG. More specifically, FIGS. 2 to 6 are explanatory diagrams of the operation at the beginning of winding, FIG. 7 is an explanatory diagram of the operation during winding, and FIGS. 8 to 11 are explanatory diagrams of the operation at the end of winding. In the drawing, A is a known outer periphery drive type veneer race, and a strip-shaped veneer 2 having a predetermined thickness is cut from a log 1 whose outer periphery is a perfect circle.

  B is a transfer conveyor provided in association with the veneer race A, and is separated into a single plate transfer direction upper side B1 and a single plate transfer direction lower side B2 with a position of a cutting device C described later as a boundary. , Servo motors, clutches & brake motors, and other appropriate drive sources 3a and 3b are provided so as to be individually drivable, and the single plate 2 is illustrated under the control of an operation control device E described later. In addition to being transported in the direction of the arrow, a space α having a desired width between the preceding single plate 2 and the subsequent single plate 2 (at least via a wire rod supply mechanism attached to a winding device described later) An interval sufficient to supply and lock the wire, and a secondary interval, which is secondary enough to separate the wire supply nozzle of the take-up shaft or the take-up shaft and the wire supply mechanism above the transfer conveyor) is generated.

  C is a known rotary-type cutting device, and when the thickness of the veneer 2 reaches a required thickness (either when going from the thinner side to the thicker side or when going from the thicker side to the thinner side) A known single plate detection mechanism including at least one single plate detector (preferably arranged in a direction orthogonal to the single plate transfer direction) that issues a single plate detection signal to an operation control device E described later. C1, under the control of the operation control device E described later, and synchronized with the upper transfer conveyor B1 via the same drive source 3a as the upper transfer conveyor B1 (or via another drive source not shown) Are held by the anvil roll 4 and the roll-shaped blade holder 5a that are driven in the direction of the arrow shown in FIG. The appropriate drive source 6 And a cutting blade 5 that is intermittently rotated in the direction of the arrow shown in the drawing, and at least a position where the thickness of the tip side of the single plate 2 reaches a required thickness is defined as a cutting position. The single plate 2 is cut in a direction parallel to the single plate fibers and in a direction perpendicular to the plate surface.

  D is a known winding device disclosed in the above-mentioned Patent Document 4, which has a wire 12 and a compressed air feed hole (not shown), obtains control of an operation control device E described later, By releasing the compressed air through the on-off valve 11 only at the time of starting, the tip of the wire 12 is properly extended with the compressed air from the feed hole, and the control of the operation control device E is also obtained. Combined type that operates in multiple directions (e.g., fluid cylinders, link mechanisms, crank mechanisms, such as a combination of similar mechanisms, or a combination of a fluid cylinder and a link mechanism, a cam mechanism and a link mechanism, for example) As shown by the arrows in the figure, the position indicated by the solid line and the position indicated by the dotted line are combined via the actuating mechanism 10 (which may be any combination of different types of mechanisms such as Can be moved A wire supply mechanism D1 including a plurality of wire supply nozzles 9 arranged in a direction orthogonal to the veneer transfer direction, and a plurality of grooves 7a into which the plurality of wire supply nozzles 9 can intervene, Support roll driven in the direction of the arrow shown in the drawing at a speed synchronized with the lower transfer conveyor B2 via the drive source 3b of the lower transfer conveyor B2 (more preferably, via another drive source not shown). 7. It is configured with a winding shaft 8 or the like arranged so that it can be supplied to the winding position on the support roll 7 indicated by the dotted line and can be taken out from the winding position on the support roll 7 at any time. The wire 12 supplied from the wire supply mechanism D <b> 1 is positioned on the outer peripheral side of the single plate 2, and the single plate 2 is wound around the winding shaft 8 together with the wire 12.

  E is an operation control device, and controls the operation of each device as follows. First, with respect to the transfer conveyor B, in principle, the upper transfer conveyor B1 and the lower transfer conveyor B2 are synchronized with the veneer race A veneer cutting speed via the drive sources 3a and 3b. Although it is driven, at least immediately after the cutting portion (position where the thickness has reached the required thickness) of the veneer 2 is cut by the cutting device C, exceptionally, the upper transfer conveyor B1 The drive is controlled to pause for a while (preferably also the drive of veneer race A). As for the cutting device C, when at least the cutting position on the tip side of the single plate 2 is detected by the single plate detection mechanism C1, based on the single plate detection signal of the single plate detection mechanism C1 (if necessary, as appropriate The driving source 6 and the blade holder so that the cutting blade 5 cuts the cutting portion (using a rotation signal of a rotation detector (not shown) locked to the transfer conveyor B1 or the like). Rotate via 5a. Then, after the cutting blade 5 is rotated to the standby position indicated by the solid line in FIG. 1, it is controlled so as to wait for the next cutting. Thus, the anvil roll 4 follows the pause of the upper transfer conveyor B1, but if it has a drive source different from the drive source of the upper transfer conveyor B1, preferably the upper transfer conveyor B1. Control is performed to pause the drive for a while following B1. Further, with respect to the winding device D, when the desired width interval α generated between the preceding single plate 2 and the subsequent single plate 2 reaches the position of the winding shaft 8 at the winding position, Control is performed so that the wire 12 is supplied to the take-up shaft 8. More specifically, in the state where the wire rod supply nozzle 9 is initially in the standby position shown by the solid line in FIG. 1, the on-off valve 11 is opened for a while to compress from the feed hole of the wire rod supply nozzle 9. The tip of the wire 12 together with the air is appropriately extended from the upper side of the winding shaft 8 positioned at the winding position so as to block the single plate passage on the lower transfer conveyor B2, and then the wire 12 Control is performed so that the wire supply nozzle 9 is lowered and advanced to the supply position below the winding shaft 8 shown by the dotted line in FIG. 1 through the operation mechanism 10 while maintaining the state where the tip of the sheet is blocking the passage of the single plate. To do.

  As for at least the period during which the wire supply nozzle of the above type is lowered and advanced to the supply position, as shown in FIGS. 4 and 5, the transfer conveyor (upper transfer conveyor and lower transfer conveyor) and the cutting device It is preferable that the anvil roll drive (preferably also the veneer race drive) be stopped for a while or extremely slowed down, and the workability apparently decreases with the stop (or deceleration). Is compensated by eliminating the necessity of excessively widening the interval between the preceding single plate and the subsequent single plate, so that the actual loss is small. Although the display of the control circuit is omitted, the operation control device also has a control function for operating an electric heater (not shown) built in the wire supply nozzle in order to cut the wire when the winding is completed.

  The single plate winding processing method according to claim 1 of the present invention can be carried out, for example, using a single plate winding processing apparatus configured as described above, and in order with reference to FIGS. explain. As shown in FIG. 1, a veneer 2 cut from a log 1 by a veneer lace A is transferred to a cutting device C via a transfer conveyor B, and the thickness of the veneer 2 on the tip side becomes a required thickness. When the single plate detection mechanism C1 of the cutting device C detects that the reached cutting point has arrived and issues a single plate detection signal to the operation control device E, the operation control device E disconnects as shown in FIG. The blade 5 is rotated through the drive source 6 and the blade holder 5a so as to cut the cutting portion. Immediately after the cutting, as shown in FIG. 3, the veneer race A, the upper transfer conveyor B1, and the anvil Since the drive of the roll 4 is controlled to be stopped for a while, an interval α having a desired width is generated between the preceding single plate 2 and the subsequent single plate 2. The cutting blade 5 continues to rotate as it is, and then waits at a predetermined standby position.

  Next, when the take-up shaft 8 is supplied to the take-up position on the support roll 7 at an appropriate time, and the interval α of the desired width reaches the position of the take-up shaft 8 at the take-up position. As shown in FIG. 4, the operation control device E pauses the driving of the veneer race A, the transfer conveyor B, and the anvil roll 4 for a while and then opens the on-off valve 11 for a while to feed the wire rod supply nozzle 9. The tip of the wire 12 together with the compressed air from the hole is appropriately extended from the upper side of the winding shaft 8 positioned at the winding position so as to block the single plate passage on the lower transfer conveyor B2. Further, as shown in FIG. 5, the wire supply nozzle 9 is moved to the supply position below the winding shaft 8 via the operating mechanism 10 while maintaining the state where the tip of the wire 12 blocks the passage of the single plate. The tip of the wire 12 is controlled so as to move down and forward State which blocks are maintained as they are. Incidentally, as is clear from FIG. 3, even if the winding shaft is supplied to the winding position before the preceding single plate (the wedge-shaped portion on the tip side in the illustrated example) passes, the wire rod As long as it is not supplied, there is no risk of the preceding single plate being wound on the winding shaft, so there is no practical problem. However, the timing of supplying the winding shaft to the winding position passes through the preceding single plate. It is not limited to the front, and it does not matter even after the preceding veneer has passed.

  Then, when the driving of the veneer race A, the transfer conveyor B, and the anvil roll 4 is resumed as shown in FIG. 6 under the control of the operation control device E, the preceding single plate 2 (wedge-shaped portion on the front end side) is moved. The wire feed nozzle 9 is fed while the tip of the wire 12 is discharged to the rear and obliquely downward of the transfer conveyor B2, and the tip of the wire 12 where the tip of the succeeding single plate 2 blocks the passage of the single plate is wound around the winding shaft 8. Since it is guided to the outer periphery of the winding shaft 8 by the wire 12 supplied from the feed hole, as shown in FIG. 7, only the single plate 2 having the required thickness as desired at least on the tip side is connected to the wire 12. It is wound around the winding shaft 8 together and formed on the winding ball 13.

  In addition, it is sufficient to supply compressed air only at the beginning, and after that, the wire may be automatically pulled out along with the winding, but in order to smoothly guide the single plate to the outer periphery of the winding shaft. It is preferable to apply an appropriate tension to the wire, and the illustration is omitted. However, as necessary, as disclosed in “Method of winding a veneer single plate” (Japanese Patent Laid-Open No. 2002-28903) It is effective to adopt a structure in which a braking member capable of varying the braking force related to the drawing of the wire rod is provided in the middle of the supply path, and the tension of the wire rod is gradually increased in response to an increase in the diameter of the winding ball. .

  Next, in the single plate winding processing method according to claim 2 of the present invention, the thickness of the rear end side of the cut single plate is required for the operation control device of the single plate winding processing device described above. The control function that controls the operation of the cutting device to cut the single plate, using the position that is less than the thickness of the cut as the cutting point, and the preceding single plate and the subsequent single plate that are also cut at the rear end side A control function for controlling the operation of the transfer conveyor separately up and down in order to provide a temporary speed difference between the upper side and the lower side of the separated transfer conveyor so that a desired width interval is generated between When the desired width interval reaches the position of the take-up shaft at the take-up position, a treatment period sufficient to separate the take-up shaft or the take-up shaft and the wire supply member of the wire supply mechanism above the transfer conveyor is secured. To stop at least the driving of the lower transfer conveyor for a while Or by having both add and control functions to decelerate, it may be implemented without any problem, be described in order with reference to FIGS. 8-11.

  As shown in FIG. 8, the thickness of the rear end side of the veneer 2 that is cut from the log 1 by the veneer race A and then transferred to the cutting device C via the transfer conveyor B does not reach the required thickness. When the single plate detection mechanism C1 of the cutting device C detects that the cut portion has arrived and issues a single plate detection signal to the operation control device E, the operation control device E causes the cutting blade 5 to detect the cutting portion. As shown in FIG. 9, the drive of the veneer race A, the upper transfer conveyor B1, and the anvil roll 4 is temporarily stopped as shown in FIG. Therefore, between the preceding single plate 2 and the following single plate 2 (wedge-like portion on the rear end side), a desired width interval β (the same width interval as that on the front end side described above) is used. There is no need to transfer the winding shaft and the wire rod supply nozzle. When I moved away upward, since sufficient intervals veneer no fear that a hindrance to subsequent, permissible not be narrower than that of the distal end side) so that occurs. The cutting blade 5 continues to rotate as it is, and then waits at a predetermined standby position. The veneer race A is prepared for the next cutting of the raw wood.

  Next, when the desired width interval β reaches the position of the winding shaft 8 at the winding position, the operation control device E temporarily drives at least the lower transfer conveyor B2 for a while as shown in FIG. While controlling to make it pause or decelerate and to control the winding shaft 8 (the wound ball 13 already formed) and the wire rod supply nozzle 9 to be separated above the transfer conveyor B, the rear end side is also desired. Only the single plate 2 having the required thickness is wound on the winding shaft 8 together with the wire 12. The wire rod 12 may be cut by operating an electric heater (not shown) built in the wire rod supply nozzle 9 after being wound around the outer periphery of the winding ball 13 somewhat more preferably. A drive source is provided separately from the drive source 3b of the transfer conveyor B2, and the support roll 7 is rotated excessively for a while so that the wire 12 is wound around the outer periphery of the wound ball 13 an appropriate number of times and then cut. In this case, the winding ball 13 can be firmly restrained by the wire 12, which is beneficial.

  Then, under the control of the operation control device E, after the winding shaft 8 (the wound ball 13 has been formed) and the wire rod supply nozzle 9 are separated above the transfer conveyor B, the lower transfer conveyor B2 is normally driven. If the process is restarted, as shown in FIG. 11, the succeeding veneer 2 (the wedge-shaped part on the rear end side) is discharged obliquely downward to the rear of the transfer conveyor B2. Therefore, the next log 1 is supplied to the veneer race A, and another winding shaft 8 is prepared in the winding device D to prepare for the same winding process. Thereafter, the desired winding process can always be performed by repeating the same operation.

  As in the above-described embodiment, the wire rod supply member (wire rod supply nozzle 9) of the wire rod supply mechanism D1 is provided so as to be movable up and down and back and forth above the transfer conveyor B, and the wire rod supply member (wire rod supply nozzle 9). As shown in FIG. 12, the winding shaft 8 (the winding ball 13 is already formed) is not cut, as shown in FIG. ) And the wire rod supply nozzle 9 are controlled to wait for a while at the illustrated position, and then the driving of the lower transfer conveyor B2 is resumed as usual, and the following single plate 2 (the wedge-shaped portion on the rear end side) is resumed. ) Is discharged obliquely downward to the rear of the transfer conveyor B2, and the next raw wood 1 is supplied to the veneer race A, and the single wood cut from the next raw wood 1 in the order shown in FIGS. Cut the appropriate position on the front end side of the plate 2 and the preceding unit 2 (a wedge-shaped portion on the front end side) and the succeeding single plate 2 are provided with a desired width interval α, and when the interval α reaches the position of the winding shaft 8 as shown in FIG. The outer periphery of the previously formed winding ball 13 is controlled by controlling the winding shaft 8 (with the winding ball 13 formed) again to the winding position and the wire rod supply nozzle 9 to the feeding position again. The single plate 2 having a required thickness cut from the next raw wood 1 can be stacked and wound.

  On the other hand, the winding device used for carrying out the method for winding a single plate according to the present invention is not limited to the type with a wire supply mechanism provided with a movable wire supply member as in the above embodiment, For example, the example shown in FIG. 14 is a winding device with a wire supply mechanism of the type disclosed in Patent Document 3, and an engagement portion (not shown) of a wire such as a needle-like body is provided at an appropriate position. The winding shaft 8a is configured to be able to be supplied to the winding position in a timely manner, and the same wire rod supply nozzle 9 as that of the above embodiment is fixedly provided obliquely below the front of the support roll 7, and is controlled by the operation control device E1. When the interval γ of the desired width provided between the preceding single plate 2 (wedge-like portion on the front end side) and the subsequent single plate 2 reaches the position of the winding shaft 8a at the winding position. The on-off valve 11 is opened for a while, and the pressure from the feed hole of the wire rod supply nozzle 9 A single plate 2 having a required thickness as desired by supplying the tip of the wire 12 together with the air toward the engaging portion of the winding shaft 8a and engaging the engaging portion with the wire 12. Only the wire 12 is guided to the outer periphery of the winding shaft 8a, and can be wound on the winding shaft 8a together with the wire 12.

  Although not shown in the drawings, a winding shaft having a desired width provided between the preceding single plate and the subsequent single plate (wedge-shaped portion on the rear end side) is located at the winding position. When reaching the position of (rolled ball already formed), at least the lower transfer conveyor drive is temporarily stopped or decelerated by the control of the operation control device, and the electric heater built in the wire supply nozzle is After the wire rod is cut by operating and the winding shaft is further separated above the transfer conveyor, if the driving of the lower transfer conveyor is resumed as usual, the following single plate (the wedge-shaped part on the rear end side) ) Can be discharged obliquely downward to the rear of the transfer conveyor, and only the single plate having the required thickness can be wound on the rear end side as desired. The cutting mode of the wire rod is the same as in the case of the above embodiment, and the drive source of the support roll is provided separately from the drive source of the transfer conveyor, and the wire rod is extraneous to the outer periphery of the wound ball an appropriate number of times. If it is cut after being wound, it is beneficial because the restraint of the wound ball becomes stronger.

  Incidentally, the winding device with a wire supply mechanism of the type shown in FIG. 14 has a wire supply nozzle fixed in addition to the general advantages and disadvantages described above. Even when the interval (γ) is smaller than the interval (α) required when using the winding device with the wire supply mechanism of the type shown, the wire can be engaged with the engaging portion of the winding shaft. Has the advantage of being.

  In each of the above embodiments, the position of the center of gravity of the preceding cut single plate is transferred to the lower transfer conveyor immediately after the cut portion of the single plate is cut by the cutting device. In the state where the center of gravity of the following single plate is not transferred to the lower transfer conveyor, at least the upper transfer conveyor (preferably also the veneer lace) is temporarily stopped. Since the speed difference is provided between the upper side and the lower side of the transfer conveyor, it is possible to arbitrarily set the interval between the preceding single plate and the subsequent single plate, which is suitable for implementing the present invention. However, the means for providing the speed difference between the upper side and the lower side of the transfer conveyor is not necessarily limited to such means, and other than that, for example, the center of gravity position of the cut preceding single plate is lower. On the side transfer conveyor In the state where the center of gravity of the following veneer is not transferred to the lower transfer conveyor, the speed of the lower transfer conveyor is increased for a while to increase the upper side of the transfer conveyor. Even if it is a means to provide a speed difference between the lower side and the lower side, it can be applied without any problem when the distance between the desired widths is relatively narrow. In short, the desired width is required between the preceding single plate and the subsequent single plate. If a speed difference is provided so as to generate the interval, there is no problem.

  Further, as in each of the above embodiments, with the position of the cutting device as a boundary, the transfer conveyor is separated into the upper side in the single plate transfer direction and the lower side in the single plate transfer direction so that each can be driven individually. The location of each veneer before and after the cutting position can be clearly determined, so it is convenient to provide a speed difference, but the separation point of the transfer conveyor is not necessarily limited to the position of the cutting device. Although omitted, the position may be a position behind the cutting device.

  Further, in each of the above-described embodiments, a mode in which a strip-shaped single plate cut from a veneer lace is wound up while being strip-shaped is illustrated. However, if necessary, for example, disclosed in Patent Document 2 As described above, or as disclosed in other publicly known documents, an appropriate device for transmitting a standard cutting signal is additionally provided to the cutting device, and the belt-like single plate is cut by a predetermined length by the cutting device. Then, there is no problem even if the winding process is adopted, the cutting form of the cutting device is a form in which the single plate is cut in a direction parallel to the single plate fiber and perpendicular to the plate surface. There is no risk of adversely affecting board yield.

  In addition, the above-mentioned single plate detection mechanism is sufficient to send a single plate detection signal to the operation control device only on the front end side and the rear end side of the belt-like single plate, and the other middle part is substantially Therefore, if necessary, the detection tool such as a detection roll that comes in contact with the veneer is temporarily raised from the veneer only when the middle part of the veneer is passing. There is no problem even if it is configured to be separated and waited at the upper side, and the occurrence rate of defects that deteriorate the thickness detection accuracy can be significantly reduced due to the deposits and accumulations of spiders in the single plate. So it is effective.

  Further, in each of the above-described embodiments, a configuration is adopted in which the winding position is one. However, if necessary, a configuration in which a plurality of winding positions are provided in front and back may be adopted. In addition to a mode in which a single plate of the same thickness is wound up at different winding positions in a timely manner, a single plate of different thickness that has been machined according to the properties of the raw wood is used at different winding positions. It is also possible to carry out in a form of individual winding, which is also convenient in the case of overlapping winding as described above.

  In the past, if the roundness is rough when the outer circumference of the raw wood is separately rough-rounded in advance, if the roundness is rough, the desired thickness is applied to the tip side of the strip-shaped veneer to be cut. Unnecessary unnecessary parts are mixed unevenly for a long time, and the winding process becomes complicated and difficult, so roundness can be achieved over the entire length of the raw wood so that there are no unreasonable parts on the outer periphery. Although there was a tendency to improve as much as possible, when the roundness was improved in this way, when a slight error occurred in the gripping position of the rotation center when removing the log again, the yield immediately decreased. There was an inconvenience caused. However, according to the winding processing method according to the present invention, the winding processing becomes complicated and difficult even if an unnecessary portion having a desired thickness is mixed unevenly long on the front end side of the belt-like single plate. Therefore, the roundness of the outer circumference of the log may be rougher than before, and if the roughness is kept in a rough range, the log will be removed again. In this case, even if a slight error occurs in the gripping position at the center of rotation, there is almost no risk of a decrease in yield. This is beneficial because it can also reduce the decrease in yield due to the gripping error at the center of rotation, and even from these points, the industrial applicability of the present invention is extremely excellent.

1 is a schematic side view of a single plate winding processing apparatus according to the present invention. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the different aspect of the winding processing apparatus of the single plate illustrated in FIG. It is operation | movement explanatory drawing of the different aspect of the winding processing apparatus of the single plate illustrated in FIG. It is side surface schematic explanatory drawing of the other Example of a winding processing apparatus.

Explanation of symbols

A: Veneer race B: Transfer conveyor B1: Upper transfer conveyor B2: Lower transfer conveyor C: Cutting device C1: Single plate detection mechanism D: Winding device D1 / D2: Wire supply mechanism E / E1: Operation control Apparatus α, β, γ: Space 1 of desired width generated between the preceding single plate and the following single plate 1: Raw wood 2: Single plate 4: Anvil roll 5: Cutting blade 7: Support rolls 8 and 8a: Winding shaft 9: Wire rod supply nozzle 10: Actuating mechanism 12: Wire rod 13: Rolled ball

Claims (8)

  After the veneer lace, the cut veneer veneer is passed through a transfer conveyor provided in connection with the veneer lace for cutting a belt-shaped veneer veneer having a predetermined thickness from a log whose outer periphery is circular. The wire rod supplied from the wire rod supply mechanism attached to the winding device is positioned on the outer peripheral side of the veneer veneer, and the veneer veneer is wound around the winding shaft together with the wire rod. A veneer veneer winding method for taking a veneer veneer, the veneer veneer being cut between a veneer lace and a winding device to cut the veneer veneer in a direction parallel to the veneer fiber and perpendicular to the plate surface. Using a cutting device equipped with a plate detection mechanism, cut at least the position where the thickness of the cut veneer veneer has reached the required thickness as a cutting position, and further cut the position or cutting position of the cutting device. With the appropriate position at the rear of the device as the boundary, The upper side of the bear's single plate transfer direction and the lower side of the single plate transfer direction are separately provided so as to be drivable separately, and by providing a speed difference temporarily between the upper side and the lower side of the transfer conveyor, When a gap of a desired width is generated between a veneer single plate to be followed and a subsequent veneer single plate, and the gap reaches the position of the winding shaft at the winding position, supply of the wire to the winding shaft is performed. A method for winding up a veneer single plate, wherein only the veneer single plate having a required thickness is wound together with the wire at least on the tip side.   Cutting the veneer veneer with a cutting device at the position where the thickness of the rear end side of the cut veneer veneer does not reach the required thickness, and the upper and lower sides of the separated transfer conveyor And a temporary difference in speed is created, and a desired width interval is generated between the cut preceding veneer single plate and the succeeding veneer single plate, and the interval is at the winding position of the winding shaft. When reaching the position, by separating the winding shaft or the winding shaft and the wire supply member of the wire supply mechanism above the transfer conveyor, only the veneer veneer having the required thickness on the rear end side, The method for winding up a veneer veneer according to claim 1, wherein the winding is performed together with the wire.   The center of gravity of the cut preceding veneer veneer is transferred to the lower transfer conveyor, and the position of the gravity center of the subsequent veneer veneer is not transferred to the lower transfer conveyor. By temporarily stopping the driving of the transfer conveyor on the side or the transfer conveyor on the upper side and the veneer race, a speed difference is provided between the upper side and the lower side of the transfer conveyor, and The method for winding up a veneer veneer according to claim 1 or 2, wherein a gap having a desired width is generated therebetween.   The center of gravity of the cut preceding veneer veneer is transferred to the lower transfer conveyor, and the position of the gravity center of the subsequent veneer veneer is not transferred to the lower transfer conveyor. By increasing the speed of the transfer conveyor on the side for a while, a speed difference is provided between the upper side and the lower side of the transfer conveyor, and a desired width interval is provided between the preceding veneer veneer and the subsequent veneer veneer. The method for winding a veneer veneer according to claim 1 or 2, wherein the veneer single plate is formed.   A winding device with a wire rod feeding mechanism provided at the rear of the veneer lace for cutting a veneer veneer having a predetermined thickness from a log whose outer periphery is a perfect circle, and a veneer lace. At least a transfer conveyor for transferring the veneer veneer to the winding device, positioning the wire supplied from the wire supply mechanism on the outer peripheral side of the veneer veneer, and using the veneer veneer together with the wire as a winding shaft A veneer veneer winding processing device for winding, comprising a veneer detection mechanism between the veneer lace and the winding device, the veneer veneer being parallel to the veneer fiber and with respect to the plate surface A cutting device that cuts in the vertical direction is provided, and the transfer conveyor is separated into the upper side in the veneer transfer direction and the lower side in the veneer transfer direction with the position of the cutting device or an appropriate position behind the cutting device as a boundary. And each can be driven individually, and Based on the detection signal of the veneer detection mechanism, the cutting device operates to cut the veneer veneer at the position where the thickness of the cut veneer veneer has reached the required thickness. The time difference between the upper side and the lower side of the transfer conveyor is tentatively and temporally adjusted so that a desired width is generated between the cut veneer veneer and the succeeding veneer veneer. To control the operation of the transfer conveyor separately and to supply the wire to the winding shaft when the desired width interval reaches the position of the winding shaft at the winding position. And an operation control device having a control function for controlling the operation of the wire supply mechanism, and at least the veneer veneer having a required thickness at least on the tip side is wound together with the wire. Characteristic veneer The winding processing device.   A control function that controls the operation of the cutting device to cut the veneer veneer at the position where the thickness of the rear end side of the cut veneer veneer does not reach the required thickness, and the rear end side However, the speed difference between the upper side and the lower side of the separated transfer conveyor is tentatively and temporally adjusted so that a desired width is generated between the cut previous veneer veneer and the subsequent veneer veneer. And a control function for controlling the operation of the transfer conveyor separately, and when the interval of the desired width reaches the position of the winding shaft at the winding position, the winding shaft or the winding shaft and the wire supply In order to ensure a treatment period sufficient to separate the wire supply member of the mechanism to the upper side of the transfer conveyor, at least an operation control device having a control function for temporarily stopping or decelerating driving of the lower transfer conveyor is provided. About the rear end Only veneer veneer having a required thickness, veneer reeling apparatus of the wire and composed so as to obtain the winding with claim 5, wherein.   The center of gravity of the cut preceding veneer veneer is transferred to the lower transfer conveyor, and the position of the gravity center of the subsequent veneer veneer is not transferred to the lower transfer conveyor. Control function to control the operation of the transfer conveyor separately up and down so that there is a speed difference between the upper side and the lower side of the transfer conveyor by temporarily stopping the drive of the side transfer conveyor or the upper side transfer conveyor and the veneer race 7. A veneer single plate winding processing apparatus according to claim 5 or 6, comprising an operation control device having the above.   The center of gravity of the cut preceding veneer veneer is transferred to the lower transfer conveyor, and the position of the gravity center of the subsequent veneer veneer is not transferred to the lower transfer conveyor. An operation control device having a control function for controlling the operation of the transfer conveyor separately up and down so as to provide a speed difference between the upper side and the lower side of the transfer conveyor by temporarily increasing the speed of the transfer conveyor on the side. A veneer veneer winding processing apparatus according to claim 5 or 6.

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