JP2000247503A - Recovering device of thread member in veneer rewinding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently recover the thread member of a veneer in automatically rewinding of a veneer roll by grasping the free end of the thread member in forward movement of a traveling body, winding the thread member around a bobbin winder pulley by the air blow from a nozzle at the forward moving limit, and then taking up it. SOLUTION: When a timing belt normally rotates, and a traveling body 50 reaches the vicinity of the forward movement limit, each grasping body 52 in opened state is laid in the state capable of grasping a thread member 35 suspended from the circumference of a roll 3 in the middle position. After the grasping body 52 is closed to grasp the tip of the thread member 35, air is blown from a nozzle 53 attached to each grasping body 52. The free tip part of the thread member 35 is blown toward a bobbin winder pulley 57, carried to the lower part of a drum part 60, and wound on the drum part 60 by the blow-off air flow generated between the drum part 60 and a thread guide 61. When each grasping body 52 is opened after a fixed time, the thread member 35 is wound on the bobbin winder pulley 57 while keeping the tension between the roll 3 and the bobbin winder pulley 57.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for efficiently recovering a thread member wound as a veneer veneer guide when rewinding a veneer veneer roll to the next step.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 16, a veneer veneer 1 cut by a veneer race is wound at an appropriate position on a take-up reel 2 which is pressed against a side drive roll and rotates. It is wound up to 3
After being temporarily stored in the wound ball stock area 4 or as it is, it is transferred to the end of the wound ball stock area 4 by the transfer rack 5, and then, at the rewind position 6, both shaft portions of the take-up reel 2 are transferred to the reel support 7. After being rotatably supported on the fixed reel receiver 8, the touch belt 9 is brought into contact with the upper outer periphery of the wound ball 3 to rewind, and the unloading conveyor connected to the transport conveyor 11 of the veneer dryer 10 in the next step. Transferred to 12.

That is, at the rewind position 6 of the upper ball stock area 4, usually, a relatively thin veneer veneer 1 for an original plate is used.
Is rewound and transferred to the upper conveyor 11 of the veneer dryer 10, and the empty take-up reel 2 after rewinding is reeled from the rewinding position 13 at the upper stage to the return rack 13 extending diagonally downward. The veneer veneer 1 is returned to the stock area 14 and, at the lower rewind position 6, the veneer veneer 1 for the intermediate plate, which is generally twice as thick as the veneer veneer 1 for the original plate, is rewound. The empty take-up reel 2 after rewinding is transferred from the lower rewinding position 6 to a return rack 13 extending diagonally upward from the lower rewinding position 6. This is returned to the reel stock area 14.

[0004]

However, the veneer veneer 1 unwound from the unwinding position 6 is the unloading conveyor 1
2 until it is transferred on top and stably conveyed, it falls almost under its own weight, and becomes very unstable. At the time of this drop, for example, in the relatively thin veneer veneer 1 in the upper stage, the streaks and cracks generated in the fiber direction are easily torn, and in the lower stage, one veneer is used. Even in the raw wood, the veneer veneer 1 cut from the lower part, such as the sapwood, the core, etc., is wound up, so even if it has a thickness almost double as compared with the upper one, There is a tendency to tear along the fiber direction.

Further, when the veneer veneer 1 having a small width is wound, it is easy to curl from the tip or to carry out eccentric conveyance while being unwound from the wound ball 3 and dropped by its own weight. The rewinding is interrupted.

[0006] However, when the veneer veneer 1 is torn or broken, or when the veneer veneer 1 is conveyed in an eccentric manner, it is necessary for the operator to rewind the veneer veneer 1 or correct the transport state. And workability was significantly impaired.

On the other hand, when one veneer veneer is unwound, almost half of the roll 3 is loaded into the open state, and almost half of the roll 3 is suspended in tension by a plurality of rows of drive guide bands. Among the respective pulley shafts constituting the guide band, a system has been proposed in which the pulley shaft located above the wound ball 3 is swingable with respect to the upper surface of the wound ball. According to this, the step between the feeding position of the veneer veneer 1 and the unloading conveyor 12 is eliminated by setting the rewinding direction of the veneer veneer from the wound ball to the opposite direction, and a tentative result is obtained.

However, in this method, each time the roll 3 is carried into the rewinding position 6, the pulley shaft located above the roll 3 needs to be opened from the upper surface of the roll 3 and then closed after being loaded. Further, when unwinding the veneer veneer 1 from the wound ball 3, a plurality of rows of drive guide bands must be brought into contact with almost half of the wound ball 3 in order to generate a frictional force by contacting the outer periphery of the wound ball 3. Therefore, the tension control of each driving guide band and the tuning control between the driving guide bands are complicated. Further, since almost half of the discharge side of the wound ball 3 is suspended in a tension state by a plurality of rows of drive guide bands, the occupied space becomes large and the apparatus must be large.

In particular, when the veneer veneer 1 is wound, a thread member may be wound along the longitudinal direction of the wound ball 3 as a guide for a plurality of veneer veneer veneers. In this case, roll 3
The hanging thread member is wound from the ball 3 to the veneer veneer 1
However, if the veneer veneer rewinding device is large, the device for collecting the thread member is further complicated. Further, the thread member is collected in a state of hanging down from immediately below the wound ball 3. However, the end of the thread member is entangled with the fiber of the veneer veneer 1 that has become the wound ball 3, and the hanging member does not hang down immediately below. is there. An object of the present invention is to efficiently recover a thread member wound as a veneer veneer guide when automatically rewinding a veneer veneer roll to the next step in order to solve the problems described above. It is what it was.

[0010]

SUMMARY OF THE INVENTION Accordingly, in the veneer veneer rewinding apparatus according to the present invention, a plurality of veneer veneer veneers are guided along the axial direction at the rewind position. The two end bearing portions of the take-up reel around which a wound ball is wound around which the free end of the thread member is hung are rotatably supported, and a pair of each of the pair corresponding to the thread member is provided at a position below the rewind position. A pay-out roll is provided on one and / or the other so as to be able to freely contact and separate from each other, and after each pair of pay-out rolls approaches and clamps the free end of the thread member, it is synchronized with the unwinding of the veneer veneer from the roll. The above-mentioned problem is solved by feeding the twisting member by a feeding roll. In this case, it is preferable that one of the feeding rolls is passed through the other, and the other is divided so that the feeding rolls can be freely attached to and separated from each other.

In addition, a traveling body is installed reciprocally from the upstream side of the rewinding position with respect to a plurality of the spools installed at a position downstream of the rewinding position, and the traveling body extends in the longitudinal direction. At the same time, a plurality of gripping bodies that grip the free end of the thread member that is wound as a guide of a plurality of rows of veneer veneers and that hangs down from the wound ball are attached, and a nozzle that communicates with the air duct is installed on the gripping body and travels. When the body is advanced, the free end of the thread member is gripped, the thread member is wound around the spool by blowing air from the nozzle at the end of the traveling body, and the thread member is synchronized with the unwinding of the veneer veneer from the wound ball. The above-mentioned problem is solved by winding on a pinwheel.

In the rewinding position, the bearings at both ends of the take-up reel around which a winding ball wound around a plurality of veneer veneers in the axial direction and having a free end at the leading end of the thread member hang down are wound. It is rotatably supported, and at the downstream position of the rewinding position, a gantry on which a plurality of spools corresponding to the thread members are installed is installed so as to be reciprocally movable with respect to the rewinding position. A suction hole communicating with the exhaust duct is opened in the winding section, and the wind member is wound around the pinwheel by the exhaust air from the suction hole at the limit of advance of the gantry, and then returns to its original position. This problem is solved by winding the thread member around the pinwheel in synchronization with the unwinding of the plate.

In these cases, an adhesive sheet may be attached to the body of the pinwheel, or fine projections may be formed to facilitate winding of the thread member. Also, the case where the winding wheel is shaped like a drum having a downward slope from the flange portions at both ends toward the inner valley portion and a V-shaped groove is formed in the valley portion to facilitate winding of the thread member. is there. Further, there is a case where the thread member after collection is easily taken out by making it detachable around the drum-shaped valley. Further, the yarn guide of the pinwheel is formed in a flat hemispherical shape having an arch-shaped cross section, and at an interval from the surface of the trunk portion of the pinwheel, almost half of the introduction side of the thread member is opened. In some cases.

[0014] Further, with respect to the downstream side of the wound ball, at the time of advancing, it is held in contact with the thread members wound as a plurality of row guides in the longitudinal direction of the wound ball, and the held thread members are lowered at the time of descending. A straightening body is installed, and at the rewind position, the bearings at both ends of the take-up reel around which the wound ball is wound are rotatably supported, and at a position below the rewind position, a pair of each of the thread members corresponding to the thread member is provided. A pay-out roll is provided on one and / or the other so as to be able to freely contact and separate from each other, and after each pair of pay-out rolls approaches and clamps the free end of the thread member, it is synchronized with the unwinding of the veneer veneer from the roll. The above-mentioned problem is solved by feeding the twisting member by a feeding roll.

[0015] Further, with respect to the downstream side of the wound ball, at the time of advancing, it is held in contact with the thread members wound as a plurality of row guides in the longitudinal direction of the wound ball, and the held thread members are lowered at the time of descending. A straightening body is installed.On the other hand, a traveling body is installed reciprocally from the upstream side of the rewinding position with respect to a plurality of winding wheels installed at a position downstream of the rewinding position. Attaching a plurality of grippers for gripping the free end of the thread member hanging from the wound ball, installing a nozzle communicating with the air duct on the gripper, and gripping the free end of the thread member when the traveling body advances. The problem is solved by causing the yarn member to be wound around the pinwheel by blowing air from the nozzle at the end of traveling body advancement, and winding the thread member around the pinwheel in synchronization with rewinding of the veneer veneer from the wound ball. are doing.

[0016] In addition, with respect to the downstream side of the wound ball, at the time of advancing, it is held in contact with the thread members wound as a plurality of row guides in the longitudinal direction of the wound ball, and the held thread members are lowered at the time of descending. A straightening body is installed, and at the rewind position, the bearings at both ends of the take-up reel around which the wound ball is wound are rotatably supported, and at a position downstream of the rewind position, a plurality of pieces corresponding to the thread members are provided. The stand on which the pinwheel is installed,
It is installed so as to be able to reciprocate with respect to the rewinding position, and a suction hole communicating with the exhaust duct is opened in the winding part of this winder, and the yarn member is wound around the winder by exhaust air from the suction hole as far as the gantry advances. This problem is solved by returning to the original position after the attachment and winding the thread member around the pinwheel in synchronization with the unwinding of the veneer veneer from the wound ball.

Further, the yarn member wound as a plurality of guides in the longitudinal direction of the wound ball is held against the downstream side of the wound ball in the longitudinal direction of the wound ball while moving forward, and each of the held yarn members is retracted in the tensioned state when retracted. On the other hand, at a position below the rewind position, a pair of pay-out rolls corresponding to the thread members are provided on one and / or the other so as to be able to freely contact and separate from each other. The object is attained by approaching the free end of the thread member and then feeding the thread member by a delivery roll in synchronization with the unwinding of the veneer veneer from the wound ball.

[0018] Further, at the downstream side of the wound ball, at the time of advancing, it is held in contact with the thread members wound as a plurality of row guides in the longitudinal direction of the wound ball, and at the time of retreat, each held thread member is brought into a tensioned state. On the other hand, for a plurality of winding wheels installed at a position downstream of the rewind position, a traveling body is installed reciprocally from the upstream side of the rewind position. A plurality of grippers for gripping the free end of the thread member hanging from the wound ball are attached, and a nozzle communicating with the air duct is installed on the gripper, and the free end of the thread member is gripped when the traveling body advances. In order to solve the above-described problem, the yarn member is wound around the pinwheel by blowing air from the nozzle at the traveling body advance limit, and the yarn member is wound around the pinwheel in synchronization with the unwinding of the veneer veneer from the wound ball. Solved.

In addition, with respect to the downstream side of the wound ball, at the time of advancing, it is held in contact with a thread member wound as a plural-row guide in the longitudinal direction of the wound ball, and each thread member held at the time of retreat is brought into a tension state. On the other hand, at a position downstream of the unwinding position, a gantry on which a plurality of spools corresponding to the thread members are installed is installed so as to be reciprocally movable with respect to the unwinding position. A suction hole communicating with the exhaust duct is opened in the winding portion of the pinwheel, and after returning the spool to the original position after the thread member is wound around the pinwheel by the exhaust air from the suction hole at the end of the gantry advancement, the winding ball is returned to the original position. The above-mentioned problem is solved by winding the thread member around the pinwheel in synchronization with the unwinding of the veneer veneer.

In these cases, preferably, a suction hole for sucking and holding the thread member is formed on the side of the straightening body facing the roll, or an adhesive sheet for facilitating the holding by entanglement of the thread member. Or by forming a fine convex portion that facilitates the holding by entanglement of the thread member, thereby facilitating the holding of the thread member.

[0021]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The components already described are given the same numbers and will not be described repeatedly. First, an embodiment of the unwinding process of the veneer veneer 1 will be described with reference to FIGS. A transfer rack 5 having a gentle descending gradient is installed toward a pair of left and right reel posts 7 installed at the end of the wound ball stock area 4. Bearings on both ends are mounted.
The pair of reel posts 7 located downstream of the transfer rack 5
A reel holder 8 that rotatably supports the bearings at both ends is installed on the inner side, and a reel presser 15 that is swingable with respect to the upper part of the bearing part is installed above the reel receiver 8. A rewind position 6 is configured.

A support base 17 is installed on both sides of the machine frame 16 installed at a position upstream of the rewinding position 6 and below the transfer rack 5, which is orthogonal to the transport direction, and a bearing 18 mounted on the support base 17 is provided. , And a plurality of large-diameter base end pulleys 20 are attached at arbitrary intervals in the axial direction of the support shaft 19. Support shaft 19 of each base end pulley 20
On both upper sides, a pair of support arms 21 bent upward from the intermediate region toward the tip are rotatably supported, and a small-diameter tip pulley is set within the tip interval of the pair of support arms 21. 22 are rotatably supported, a drive guide band 23 is bridged between a large-diameter base end pulley 20 and a small-diameter distal pulley 22, and an arbitrary position of each support arm 21 is connected to a connecting beam 24.
The two ends of the connecting beam 24 are attached to a piston rod 26 of a fluid cylinder 25 pivotally supported by the machine frame 16.

An auxiliary frame 27 having an arcuate shape along the curvature of the base end pulley 20 on its opposing surface is installed above the machine frame 16 at an upstream side opposing position of each base end pulley 20. A folding guide member 29 in which a belt is stretched between three pulleys 28 supported by the auxiliary frame 27 is installed on the base end pulley 20. Immediately below the return guide member 29, a return conveyor 31 in which a plurality of rows of belts are stretched is connected between a pair of shafts 30 supported at the upstream and downstream positions of the machine frame 16 in the transport direction.

A chain 34 is stretched between a chain wheel 32 attached to one side of the support shaft 19 and a motor 33 installed on the machine frame 16 so that each drive guide band 23 is moved counterclockwise in FIG. It is controlled to rotate freely in the direction,
The folding guide member 29 ensures the sandwiching reversal of the veneer veneer 1 by the cooperative action with the drive guide band 23.

With the expansion and contraction of the piston rod 26 of the fluid cylinder 25, the drive guide strips 23 arranged in a plurality of rows in a direction perpendicular to the conveying direction are free ends with the support shaft 19 position as a fulcrum. The pulley 22 is swingable in the direction of the wound ball 3 so that the lower part of the outer periphery of the wound ball 3 can be approached or separated from the lower portion. First, the veneer veneer 1 is wound from the wound ball 3. At the time of return, the fluid is supplied to the rear port of the fluid cylinder 25 to extend the piston rod 26 at the reduction limit position, so that a plurality of reels 8 are supported on the reel receiver 8 at the lower end of the outer periphery of the wound ball 3. The drive guide strips 23 in the row are brought into contact with each other in a pressed state.

Next, when the driving guide band 23 is rotated counterclockwise in FIG. 1 by driving the prime mover 33, the free end of the veneer veneer 1 is wound by the frictional force with the driving guide band 23. It is returned and guided to the return guide member 29 while being transferred onto the drive guide band 23. At this time, the turn-back conveyor 31 is controlled at substantially the same speed as the drive guide band 23 and the transport conveyor of the downstream veneer dryer, and the drive guide band 2 follows the curvature of the turn guide member 29.
The veneer veneer 1 receives the veneer veneer 1 that is nipped and inverted between the veneer veneer 3 and the veneer veneer 1 via the folding conveyor 31.

With the extension movement of the fluid cylinder 25, the drive guide band 23 is always pressed against the lower part of the outer periphery of the roll 3, and the roll 3 is fed by the veneer veneer 1.
As the diameter decreases, the distal end pulley 22 of the support arm 21 rotates counterclockwise in FIG. 1 around the proximal pulley 20. Each drive guide band 23 is a belt-like member that is endlessly stretched between the base end pulley 20 and the distal end pulley 22, but is not bridged between equal-diameter pulleys. The pulley 20 has a larger diameter than the tip pulley 22. Therefore, when the drive guide band 23 is pressed against the lower part of the outer periphery of the wound ball 3 by the radius difference of each pulley, there is a margin, and the drive guide band 23 is formed on the lower part of the outer periphery of the wound ball 3.
Can be pressed in a plane of a certain width. By pressing in this plane, the contact area between the drive guide band 23 and the lower part of the roll 3 can be increased to generate more frictional force, and the veneer veneer 1 can be stably removed from the roll 3. It becomes possible to rewind. In addition, since the base end pulley 20 has a large diameter, the turning curvature of the veneer veneer 1 becomes large, and the veneer veneer 1 can be smoothly turned back and transported. Furthermore, support arm 2
1 is formed so as to be bent upward from the intermediate region toward the tip, so that the drive guide band 23
Inconveniences such as interference between the lower end of the upper track of the upper arm and the upper end of the support arm 21 and the stoppage of the rotation of the drive guide band 23 are avoided, and the veneer veneer 1 is reliably fed from the take-up reel 2. .

Next, there are cases where a plurality of rows of thread members 35 are wound together with the veneer veneer 1 at arbitrary intervals in the axial direction of the take-up reel 2 as guides. An embodiment in which the veneer veneer 1 is rewound while collecting the member 35 will be described. As shown in FIGS. 3 and 4, a straight feed roll 36 is pivotally supported on the front surface on the downstream side of the connecting beam 24, and a prime mover 37 is installed at an end of the shaft. A divided feeding roll contact / separation fluid cylinder 39 is attached within the interval between the respective support arms 21 of the receiving frame 38 bridged around the portion, and the divided feeding roll 41 can be rotated at the tip of the piston rod 40 respectively. I support it.

As described above, a plurality of rows of drive guide bands 23 are brought into contact with the lower part of the outer periphery of the ball 3 and the piston rod 40 of the fluid cylinder 39 attached to the receiving frame 38 is extended. Then, the divided feeding roll 41 is moved toward the straight feeding roll 36. In the course of this movement, the wound ball 3 is wound at an arbitrary interval in the axial direction as a guide for the veneer veneer 1, and is wound around the tip of a plurality of rows of thread members 35 hanging from the outer periphery of the wound ball 3. The rolls 36 and 41 are sandwiched.

Next, by driving the prime mover 33, the drive guide band 23 is rotated counterclockwise in FIG.
By controlling the straight feed roll 36 in synchronization with the drive guide band 23 and rotating both rolls 36 and 41 in opposite directions, the roll 3 is rewinded from the roll 3 while the veneer veneer 1 is rewound. Each of the thread members 35 wound as a guide is fed out. Therefore, the veneer veneer 1 transferred onto the drive guide band 23 is the return guide member 2
9 to be carried into the veneer dryer in the same manner as described above.
5 is collected in the collection box 42 located immediately below.

Next, another embodiment for recovering the thread member 35 will be described with reference to FIGS. A pair of horizontal beams 43 toward the pair of left and right reel posts 7 is installed at a certain distance below the transfer frame 5.
Timing belts 45 are respectively stretched between pulleys 44 rotatably supported at the front and rear portions. The pair of timing belts 45 are tuned by a connecting shaft 46, and are rotated back and forth by forward and reverse movements of a motor 47 with a speed reducer, and the amount of rotation is controlled by a pulse transmitter built in the motor 47. Have been.

A linear way 48 laid in parallel with the conveying direction in the upper and lower track intervals of the pair of timing belts 45.
A linear block 49 attached to the timing belt 45 is placed on the top. A traveling body 50 is mounted between the linear blocks 49 in a direction perpendicular to the transport direction, and a plurality of supports 51 are projected from the traveling body 50 at a certain interval in a direction perpendicular to the transport direction. Has been installed. A bifurcated gripper 5 is provided at the tip of each support 51.
2 is installed so as to be openable and closable, and a nozzle 53 is attached to a lower end of each support body 51 so as to be located close to the gripping body 52, and the nozzle 53 is connected to a blower 55 through a blower duct 54. .

On the other hand, a plurality of spools 57 corresponding to the thread members 35 are supported on a gantry 56 provided from the machine frame 16 downstream of the rewinding position 6, and each of the spools 57 is A prime mover 59 is connected via a torque limiter 58. Further, a thread guide 61 is attached to the bobbin 57 at a position along a substantially half circumference of the trunk 60 at a certain interval.

According to the above embodiment, the motor 4
7 is driven to rotate the timing belt 45 forward, the linear block 49 slides on the linear way 48 and moves forward, and when the traveling body 50 attached to the linear block 49 reaches the vicinity of the forward limit, the linear block 49 travels. Each gripping body 52 attached to the body 50 and in an open state is wound as a guide for the veneer veneer 1 at an arbitrary interval in the axial direction of the wound ball 3, and hangs from the outer periphery of the wound ball 3. A plurality of rows of thread members 35 can be held at the intermediate position. Next, after the grippers 52 are closed and the vicinity of the distal end of the thread member 35 is gripped, air is ejected from the nozzle 53 attached to each gripper 52.
The free end portion of the tip from the portion gripped by 2 is blown toward the pinwheel 57 located on the downstream side.

At this time, the pinwheel 57 is rotated counterclockwise in FIG. 6, and the free end portion of the thread member 35 in the sprayed state reaches the lower part of the trunk 60 of the pinwheel 57. The jet airflow (blowing airflow) generated between the trunk 60 and the yarn guide 61 is wound around the trunk 60 and entangled. When each gripping body 52 is released after a certain period of time, the thread member 35 is maintained in tension between the ball 3 and the pinwheel 57 with the continuous rotation of the pinwheel 57. Since the driving of the prime mover 59 is always passive via the torque limiter 58, an excessive load can be avoided.

In this state, when a plurality of rows of drive guide bands 23 are brought into contact with the lower portion of the outer periphery of the wound ball 3 as described above, the veneer veneer 1 is rewound from the wound ball 3, and this winding is performed. With the start of the return, the overload state is released and the
Is rotated. Therefore, the veneer veneer 1 transferred onto the drive guide band 23 is guided to the return guide member 29,
Similarly to the above description, each of the thread members 35 wound as a guide on the wound ball 3 is carried into the veneer dryer via the turn-back conveyor 31 and the winding wheel 5
7 will be wound. The traveling body 50 in the above embodiment moves forward and backward by rotating the timing belt 45 forward and backward by forward and reverse rotations of the motor 47 with a speed reducer, but the traveling body 50 is not limited to this. The movement may be replaced by a cylinder expansion / contraction movement, a rack / pinion movement, a crank movement, or the like.

The above embodiment describes the case where the pinwheel 57 is fixedly installed. Next, an embodiment in which the pinwheel 57 is configured to be movable forward and backward will be described. As shown in FIG. 7, a frame 56 is attached to linear ways 62 laid at both ends of the machine frame 16 via a linear block 63, and a piston rod 65 of a fluid cylinder 64 installed in the machine frame 16 is mounted on the frame 56. Attached and wound at arbitrary intervals in the axial direction of the wound ball 3 as a guide for the veneer veneer 1, and advances and retreats the gantry 56 to the vicinity of the tips of a plurality of rows of thread members 35 hanging from the outer periphery of the wound ball 3. It was free. In addition, an exhaust fan 66 is installed at one upper portion of the gantry 56, while a suction hole (not shown) is opened in the body 60 of the bobbin 57. 6
The interval 0 is set to a communication state through the exhaust duct 67,
A wedge-shaped cut 68 is formed at the distal end of a thread guide 61 that is installed at a position along the trunk 60 of each of the pinwheels 57 at a certain interval.

According to this embodiment, the gantry 56 is moved in the direction of the roll 3 along the linear way 62 with the extension movement of the fluid cylinder 64, and when the gantry 56 reaches the vicinity of the forward limit, the shaft of the roll 3 is moved. At an arbitrary interval in the core direction, the veneer veneer 1 is wound as a guide, and the vicinity of the tip of a plurality of rows of thread members 35 hanging from the outer periphery of the wound ball 3 and the wedge-shaped cut 68 of the thread guide 61 are formed. It will be in the state of engaging. Next, the exhaust fan 66 is operated, and the
When the exhaust airflow (suction airflow) is generated between the trunk 60 of the spool 7 and the yarn guide 61, the free end of the leading end of the thread member 35 is wrapped around the lower part of the trunk 60 of the pinwheel 57 by this airflow.
It will be entangled. Accordingly, the thread member 35 is maintained in a tension state between the bobbin 3 and the bobbin 57 with the continuous rotation of the bobbin wheel 57, and is synchronized with the unwinding of the veneer veneer 1 from the bobbin 3 as described above. Then, each thread member 35 wound as a guide around the wound ball 3 is wound around a spool 57. The gantry 56 in the above embodiment is movable forward and backward by the expansion and contraction of the fluid cylinder 64.
Without being limited to this, the timing belt may be replaced with forward / backward rotation, rack / pinion movement, crank movement, or the like by forward / reverse rotation of the motor with a speed reducer as described above.

In each of the above-described embodiments, the plurality of rows of thread members 35 wound as guides for the veneer veneer 1 at arbitrary intervals in the axial direction of the wound ball 3 are placed almost immediately below the outer periphery of the wound ball 3. The description has been made on the assumption that the state is hung.
However, when the veneer veneer 1 is rolled up to form a roll 3, the end of the thread member 35 wound as a guide is
The fibers of the veneer veneer 1 that has become the wound ball 3 may become entangled with the fibers and may not hang directly below. In addition, while the wound ball 3 after winding is transferred by the gentle downward slope of the transfer rack 5,
Alternatively, while waiting at the wound ball stock area 4, the self-weight of the thread member 35 is light, so that the thread member 35 is blown by the wind while hanging down, and the fluffy fibers on the surface of the wound ball 3 are entangled in the middle of the thread member 35. In some cases, the hanging position may go wrong.

In such a case, the thread member 35 cannot be collected. Next, an embodiment for correcting the posture of the thread member 35 will be described with reference to FIGS. A stopper 69 is provided at the standby position of the wound ball stock area 4 so as to be able to protrude and retract with respect to the transport surfaces of the pair of transfer racks 5. The next roll 3 is on standby. A pair of vertical vertical beams 70 is installed near the stopper 69, and the movable block 71 can be moved up and down via an elevating mechanism by using the inside of the vertical beams 70 as a guide. In the illustrated example, the fluid cylinder 72 is capable of moving up and down as an elevating mechanism. Each moving block 7
An arm 73 is pin-coupled to the upper end of 1, and a fluid cylinder 74 is supported at the lower end of each moving block 71 as a reciprocating mechanism so as to be tiltable. The distal end of the piston rod 75 of the fluid cylinder 74 is connected to the intermediate region of the arm 73, and the distal end of each arm 73 is connected to both ends of the straightening body 76. On the other hand, it is configured such that it can approach and separate freely while turning around the pin connection part of the arm. As shown in FIG. 10, on the side of the straightening body 76 facing the wound ball 3,
A plurality of suction holes 77 for sucking and holding the thread member 35 are formed,
One end of the correction body 76 is connected to a blower 79 via a flexible discharge duct 78.

While the previous ball 3 is being rewound at the rewind position 6, the arm 73 is moved by the operation of the advance / retreat mechanism (fluid cylinder 74) at the ascending position of the moving block 71 as shown in FIG.
The correction body 76 is rotated in the middle and counterclockwise directions to press the correction body 76 in the longitudinal direction on the downstream side of the next roll 3 so as to make contact therewith. At the time of this contact, the plurality of rows of thread members 35 wound around the wound ball 3 as guides are suction-held by the correction body 76 through the suction holes 77. After the suction holding of the thread member 35, the moving block 71 is lowered by the operation of the lifting / lowering mechanism (fluid cylinder 72) while the fluid is controlled and the position of the correction body 76 with respect to the roll 3 is locked. When the moving block 71 is lowered, each of the thread members 35 is gradually pulled with the wound ball 3 while being held by the correction body 76 by suction. Therefore,
Suppose that the end of the thread member 35 wound as a guide is entangled with the fiber of the veneer veneer 1 that has become the wound ball 3, or the fuzzy fiber on the surface of the wound ball 3 is entangled in the middle of the thread member 35. Even if the hanging position is crazy,
By the time the moving block 71 reaches the lower limit position, the moving block 71 is in a tension state, and the entanglement with the fiber is eliminated. When the holding state of the thread member 35 and the straightening body 76 is released at the lowering limit of the straightening body 76, the thread members 35 in a plurality of rows hang from the outer periphery of the wound ball 3 almost directly below, and the posture is corrected. Will be. In the above embodiment, the correction body 76
Although the advancing / retreating mechanism is the fluid cylinder 74, the invention is not limited to this and may be replaced with rack and pinion movement, crank movement, or the like. The fluid cylinder 72 is used as the elevating mechanism of the moving block 71. Similarly, the forward / backward rotation of the timing belt by the forward / reverse rotation of the motor with the speed reducer, the rack / pinion movement, and the crank You may substitute for exercise etc.

After the correction, when the rewinding of the preceding wound ball 3 is completed, the stopper 69 is immersed from the conveying surface, and the wound ball 3 is transferred to the rewinding position 6. At this time, since the correction body 76 is at the lower limit position, there is no obstacle to the transfer. For convenience of explanation, the above embodiment is described as being carried out at the standby position of the wound ball stock area 4 while the preceding wound ball 3 is being rewound at the rewinding position 6. In some cases, it is performed prior to the rewinding operation.

Next, another embodiment for correcting the posture of the thread member 35 will be described with reference to FIG. A linear way 80 is laid downstream of the rewind position 6, that is, downstream of the reel receiver 8 installed on the pair of transfer racks 5, and a linear block 81 is movably mounted on the linear way 80,
A straightening body 76 similar to that described above is attached to the linear block 81 via a bracket 82. Transfer rack 5
Further downstream, is provided an advance / retreat mechanism that allows the correction body 76 to approach and separate from the roll 3 freely.
In the illustrated example, the fluid cylinder 83 is used as the advance / retreat mechanism.
, And the tip of the piston rod 84 is connected to the bracket 82.

In this embodiment, first, by operating the advance / retreat mechanism (fluid cylinder 83), the correction body 76 is retracted to the retreat limit position or a position not interfering with the wound ball 3. The roll 3 moves on the transfer frame 5 to reach the position of the reel receiver 8, and the bearing of the roll 3 is rotatably supported by the reel receiver 8 and the reel presser 15. At this time, each drive guide band 23 is waiting at the lower limit position distant from the ball 3.
Next, the piston rod 84 of the fluid cylinder 83 is extended, and the straightening body 76 is moved along the linear way 80 into the wound ball 3.
And pressed in the longitudinal direction on the downstream side of. At the time of this contact, a plurality of rows of thread members 35 wound around the wound ball 3 as guides are sucked and held by the correction body 76 through the suction holes 77, as described above. After the suction holding of the thread member 35,
When the piston rod 84 of the fluid cylinder 83 is contracted, the correction body 76 starts to retreat on the linear way 80.
While the straightening body 76 is retracting, each thread member 35
As shown by a two-dot chain line in FIG. Therefore, if the end of the thread member 35 wound as a guide is entangled with the fiber of the veneer veneer 1 serving as the wound ball 3, or the fiber member 35 on the surface of the wound ball 3 has a fuzzy fiber. Even if the hanging position is entangled and the hanging position is out of order, the correction body 76 becomes tensed before reaching the retreat limit position, and the entanglement with the fiber is eliminated. afterwards,
When the straightening body 76 reaches the retreat limit position, the respective thread members 35 are released from being held by suction with the straightening body 76, and the thread members 35 in a plurality of rows are pulled from the position of the roll 3 in the lateral direction, and their own weights are reduced. As a result, the ball 3 hangs down from the outer periphery of the wound ball 3, and the posture thereof is corrected. In the above-described embodiment, the reciprocating mechanism of the correction body 76 is a telescopic movement of the fluid cylinder 83. However, the present invention is not limited to this, and the timing belt is driven by the forward / reverse rotation of the motor with a speed reducer as described above. It may be replaced with front / rear rotation, rack / pinion movement, crank movement, or the like. Further, in the above embodiment, for the sake of convenience of explanation, the rewind position 6 is assumed to be performed prior to the rewinding operation.
In the standby position, the rewinding may be performed while the previously wound ball 3 is being rewound at the rewinding position 6.

In the above-described embodiments, the posture is corrected while forming the suction hole 77 in the correction body 76 and holding the thread member 35 by suction. In some cases, an adhesive sheet, such as an adhesive tape or a gum tape, which causes retention by entanglement with the thread member 35 may be attached to the side of the body 76 facing the ball 3. Also,
In addition, as shown in FIG. 12, a high-friction member such as a magic tape or sanding paper to which abrasive grains are attached is attached, or the surface of the correction body is hit by bumping, sanding or knurling. In some cases, fine projections 85 may be formed by processing to cause retention by entanglement with the thread member 35. In this case, the tension state with the thread member 35 due to the lowering or retreating of the correction body 76 is caused by the entangled holding by the adhesive sheet,
Alternatively, the entanglement is maintained by the fine projections 85. still,
The suction hole 77 for generating suction holding, the pressure-sensitive adhesive sheet for generating entangled holding, and the fine projections 85 are provided on the correction body 7.
6 may be formed on the entire surface on the side facing the wound ball 3 of FIG.
As shown in FIG. 2, a certain width may be formed near the position of the thread member 35 wound as a guide at an arbitrary interval in the longitudinal direction of the wound ball 3.

Further, the body 60 of the winding wheel 57 is
As shown in the figure, the shape of the drum has a downward slope from the flange portions at both ends toward the inward valley, and this valley is formed into a V-shaped groove 86.
At the same time, the left and right two component parts are configured to be detachable by a fitting method, a screwing method, or the like at a boundary of the valley, thereby facilitating removal of the collected thread member 35 from the body 60. In some cases. According to this pinwheel 57, when the winding of the thread member 35 around the pinwheel 57 is started, the leading end of the thread member 35 that has reached the body 60 has a V-shaped valley portion that is located substantially at the center along the gradient. The groove 86 is reached, and the winding is assured. Further, after the winding of the thread member 35 is completed, if the winding pin 57 is separated to the left and right at the center portion, the wound thread member 35 can be easily taken out from the winding pin 57, and conversely, the next time At the time of work, it is sufficient to mount the detached two parts, and workability can be improved.

In each of the above embodiments, the description has been made on the assumption that the body 60 of the pinwheel 57 has a smooth surface. However, the winding of the thread member 35 around the body 60 is facilitated. An adhesive sheet such as an adhesive tape or a gum tape may be attached. In addition, a high-friction member such as sanding paper to which abrasive grains are attached is attached to the body 60, or the surface of the body 60 is formed with an uneven surface by hitting, filed or shown in FIG. In the case where the body 60 itself is processed so as to have a large coefficient of friction, for example, by forming a fine convex portion 87 by performing knurling to facilitate winding of the thread member 35 around the body 60. There is.

Therefore, when the winding of the thread member 35 around the winding wheel 57 is started, the free end portion of the leading end of the thread member 35 is
If it comes into contact with any of the surface portions of the thread member 35, the surface is the adhesive sheet or the fine convex portion 87, so that the thread member 35 is easily entangled with the body portion 60, and the free end portion of the leading end of the thread member 35 is Even if the winding is slightly displaced from the position where the winding is to be performed, the winding on the winding wheel 57 is performed without any trouble. Thereafter, the thread member 35 is maintained in a tensioned state between the bobbin 3 and the bobbin 57 with the continuous rotation of the bobbin 57, and is synchronized with the rewinding of the veneer veneer 1 from the bobbin 3 as described above. Then, each thread member 35 wound as a guide around the wound ball 3 is wound around a spool 57.

Further, as shown in FIG. 15, the yarn guide 61 is formed in a flat hemispherical shape having an arch-shaped cross section, and the yarn guide 61 is arranged at a certain distance from the surface of the trunk 60 of the winding wheel 57. In some cases, almost half of the introduction side of the member 35 is covered so as to be in an open state, and the member 35 is attached from a gantry 56 supporting a pinwheel 57. According to this, at the start of the winding, the thread member 35 is guided from the lower part of the body part 60 and the lower part of the hemispherical thread guide 61 by the ejection (blow-out) of air or the exhaustion (suction) of the air. . At this time, the jet airflow (blowout airflow) or the exhaust airflow (suction airflow) flows from the lower part to the upper part of the flattened hemispherical upper part (most concave part) of the cross-sectional arch shape, so that the thread member 35 is formed. Rides on this airflow, passes through the top of the yarn guide 61 and reaches the upper portion. When the airflow is cut off, the body 60
You will fall on it. Therefore, the leading end of the thread member 35 is in a state of being wound around the trunk portion 60 of the winding wheel 57 by half a turn or more, and is easily wound with the rotation of the winding wheel 57 in the counterclockwise direction in FIG. . In particular, in the case of the drum-shaped body portion 60 described above, the leading end portion of the thread member 35 that has fallen from the upper portion of the thread guide 61 has a V-shaped groove of a valley located substantially at the center along the gradient. 86, and the winding is assured.

In this embodiment, for convenience of explanation,
Although the winding wheel 57 having the structure shown in FIGS. 13 and 14 and the yarn guide 61 having the structure shown in FIG. 15 have been described as essential components of the recovery device for the yarn member 35, when these are used separately and independently. There is also.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of rewinding a veneer veneer.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view showing an embodiment of a yarn member collecting device.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a side view showing another embodiment of the yarn member collecting device.

FIG. 6 is a partially cutaway perspective view illustrating the operation of FIG. 5;

FIG. 7 is a plan view showing another embodiment of the yarn member collecting device.

FIG. 8 is a view taken along line AA of FIG. 7;

FIG. 9 is a perspective view showing an embodiment of a thread member posture correcting device.

FIG. 10 is a rear view of the correction body.

FIG. 11 is a perspective view showing another embodiment of the yarn member posture correcting device.

FIG. 12 is a plan view showing another embodiment of the thread member posture correcting device.

FIG. 13 is a side view showing another embodiment of the pinwheel.

FIG. 14 is a perspective view showing another embodiment of the pinwheel.

FIG. 15 is a side view showing another embodiment of the yarn guide.

FIG. 16 is a side view showing a conventional device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Veneer veneer, 2 ... Take-up reel, 3 ... Roll ball, 4 ... Roll stock area, 5 ... Transfer rack, 6 ... Rewind position, 7 ...
Reel support, 8 ... Reel receiving, 9 ... Touch belt, 10 ...
Veneer dryer, 11: conveyor, 12: unloading conveyor, 13: return rack, 14: reel stock area, 1
5 Reel presser, 16 Machine frame, 17 Support base, 18 Bearing, 19 Support shaft, 20 Base pulley, 21 Support arm, 22 Pulley pulley, 23 Drive guide band, 24 Connecting beam, 25: fluid cylinder, 26: piston rod, 2
7 ... auxiliary frame, 28 ... pulley, 29 ... folding guide member,
Reference numeral 30: shaft, 31: folding conveyor, 32: chain wheel, 33: motor, 34: chain, 35: thread member, 3
6: straight feed roll, 37: motor, 38: receiving frame, 39: fluid cylinder, 40: piston rod, 41
... Dividing feed roll, 42. Collection box, 43. Horizontal beam, 44. Pulley, 45... Timing belt, 46... Connection shaft, 47.
49: linear block, 50: traveling body, 51: support,
52: gripping body, 53: nozzle, 54: air duct, 55
... Blower, 56 ... Stand, 57 ... Windmill, 58 ... Torque limiter, 59 ... Motor, 60 ... Body, 61 ... Thread guide, 62 ... Linear way, 63 ... Liner block, 64
... fluid cylinder, 65 ... piston rod, 66 ... exhaust fan, 67 ... exhaust duct, 68 ... cut, 69 ... stopper, 70 ... vertical beam, 71 ... moving block, 72 ... fluid cylinder, 73 ... arm, 74 ... fluid Cylinder, 75: piston rod, 76: straightening body, 77: suction hole, 78: exhaust air duct, 79: exhaust fan, 80: linear way, 81: linear block, 82: bracket, 83: fluid cylinder, 84: piston rod , 85 ... convex part, 86 ... groove part,
87 ... convex part

Claims (16)

[Claims] At a rewinding position, both ends of a take-up reel around which a winding ball wound around a veneer veneer in the axial direction and having a free end hanging down at the free end of a thread member are wound. At a position below the rewinding position, a pair of pay-out rolls corresponding to the thread members are installed on one and / or the other so as to be able to freely contact and separate from each other, and the pair of pay-out rolls approach each other. An apparatus for collecting a thread member in a veneer veneer unwinder, wherein the thread member is unwound by an unwinding roll in synchronization with the unwinding of the veneer veneer from the wound ball after the free end of the thread member is nipped. 2. The yarn member collecting apparatus according to claim 1, wherein one of the pay-out rolls passes through the other and the other is divided so as to be freely movable toward and away from each other. 3. A traveling body is installed reciprocally from the upstream side of the rewinding position with respect to a plurality of the spools installed at a position downstream of the rewinding position, and the traveling body extends in the longitudinal direction. At the same time, a plurality of gripping bodies that grip the free end of the thread member that is wound as a guide of a plurality of rows of veneer veneers and that hangs down from the wound ball are attached, and a nozzle that communicates with the air duct is installed on the gripping body and travels. When the body is advanced, the free end of the thread member is gripped, the thread member is wound around the spool by blowing air from the nozzle at the end of the traveling body, and the thread member is synchronized with the unwinding of the veneer veneer from the wound ball. A yarn member recovery device for veneer veneer unwinding, wherein the yarn member is wound around a pinwheel. 4. A rewinding position, wherein both end bearing portions of a take-up reel on which a winding ball wound around a plurality of veneer veneer guides in the axial direction and having a free end of a thread member hanging down are wound. It is rotatably supported, and at the downstream position of the rewinding position, a gantry on which a plurality of spools corresponding to the thread members are installed is installed so as to be reciprocally movable with respect to the rewinding position. A suction hole communicating with the air discharge duct is opened in the winding portion, and the wind member is wound around the spool by the exhaust air from the suction hole at the limit of the advance of the gantry. An apparatus for collecting thread members in veneer veneer unwinding, wherein the thread members are wound around a pinwheel in synchronization with the unwinding of the plate. 5. A veneer veneer according to claim 3, wherein the winding wheel has a drum-like shape having a downward slope from the flange portions at both ends to the inward valley, and is detachable at the valley. Device for collecting thread members in return. 6. The veneer veneer according to claim 3, wherein the winding wheel has a drum-like shape having a downward slope from the flange portions at both ends toward the inward valley portion, and the valley portion is formed as a V-shaped groove portion. A device for collecting thread members during unwinding. 7. An adhesive sheet for facilitating winding of the thread member is attached to the body of the pinwheel, or a fine convex portion for facilitating the winding of the thread member is formed on the body of the pinwheel. Claim 3
6. The yarn member recovery device according to any one of claims 5 to 5, wherein the veneer veneer is rewound. 8. The yarn guide of the pinwheel is formed in a flat hemisphere having an arch-shaped cross section, and at an interval from the surface of the trunk of the pinwheel, approximately half of the thread member introduction side is opened. 8. The yarn member collecting device in veneer veneer unwinding according to claim 3, wherein the yarn member is covered so as to be in a state. 9. A thread member wound as a plurality of rows of guides in the longitudinal direction of the wound ball is held against the downstream side of the wound ball at the time of advancing, and each thread member held at the time of descending is brought into a tension state. A straightening body is installed, and at the rewind position, the bearings at both ends of the take-up reel around which the wound ball is wound are rotatably supported, and at a position below the rewind position, a pair of each of the thread members corresponding to the thread member is provided. A pay-out roll is provided on one and / or the other so as to be able to freely contact and separate from each other, and after each pair of pay-out rolls approaches and clamps the free end of the thread member, it is synchronized with the unwinding of the veneer veneer from the roll. An apparatus for collecting thread members in veneer veneer unwinding, wherein the thread members are fed by a feeding roll. 10. A thread member wound as a multi-row guide in the longitudinal direction of the wound ball at the time of advancing forward and held against the downstream side of the wound ball, and each thread member held at the time of descending is brought into a tension state. A straightening body is installed, and on the other hand, for a plurality of winding wheels installed at a position downstream of the rewind position, a traveling body is installed reciprocally from the upstream side of the rewinding position.
A plurality of grippers for gripping the free end of the thread member hanging from the wound ball are attached, and a nozzle communicating with the air duct is installed on the gripper, and the free end of the thread member is gripped when the traveling body advances. Wherein the yarn member is wound around the spool by blowing air from a nozzle at a traveling limit of the traveling body, and the yarn member is wound around the spool in synchronization with rewinding of the veneer veneer from the wound ball. A yarn member recovery device for single-plate rewinding. 11. A thread member wound as a plurality of rows of guides in the longitudinal direction of the wound ball at the time of advancing forward and held against the downstream side of the wound ball, and each thread member held at the time of descending is brought into a tension state. Install the correction body, while in the rewind position,
Both ends of the take-up reel around which the wound ball is wound are rotatably supported, and at a downstream position of the rewind position, a gantry on which a plurality of spools corresponding to the thread members are installed is provided at a rewind position. The spool is connected to the winder and a suction hole communicating with the exhaust duct is opened. A yarn member recovery device for veneer veneer unwinding, wherein the yarn member is returned to the original position later, and the yarn member is wound around a pinwheel in synchronization with the unwinding of the veneer veneer from the wound ball. 12. A thread member wound as a multi-row guide in the longitudinal direction of the wound ball is held against the downstream side of the wound ball at the time of advance, and each thread member held at the time of retreat is brought into a tension state. On the other hand, at a position below the rewind position, a pair of pay-out rolls corresponding to the thread members are provided on one and / or the other so as to be able to freely contact and separate from each other, and each pair of pay-out rolls is provided. Collecting the thread member by unwinding the veneer veneer, wherein the thread member is fed out by a feed roll in synchronism with the unwinding of the veneer veneer from the wound ball after approaching the free end of the thread member. apparatus. 13. A thread member wound as a plural-row guide in the longitudinal direction of the wound ball at the time of advancement and held against the downstream side of the wound ball, and each thread member held at the time of retreat is brought into a tension state. On the other hand, for a plurality of winding wheels installed at a position downstream of the rewind position, a traveling body is installed reciprocally from the upstream side of the rewind position. Attaching a plurality of grippers for gripping the free end of the thread member hanging from the wound ball, installing a nozzle communicating with the air duct on the gripper, and gripping the free end of the thread member when the traveling body advances. Wherein the yarn member is wound around the spool by blowing air from a nozzle at a traveling limit of the traveling body, and the yarn member is wound around the spool in synchronization with rewinding of the veneer veneer from the wound ball. A yarn member recovery device for single-plate rewinding. 14. A thread member wound as a multi-row guide in the longitudinal direction of the wound ball at the time of advancing, and is held against the downstream side of the wound ball. On the other hand, at the downstream position of the rewind position, a gantry on which a plurality of winding wheels corresponding to the thread members are installed is installed to be reciprocally movable with respect to the rewind position,
A suction hole communicating with the air discharge duct is opened in the winding portion of the pinwheel, and the wind member is wound around the pinwheel by the exhaust air from the suction hole at the limit of the advancement of the gantry. A yarn member wound around a winding wheel in synchronization with the unwinding of a veneer veneer from a veneer veneer. 15. The yarn member recovery device according to claim 9, wherein a suction hole for sucking and holding the yarn member is formed on a side of the straightening body facing the wound ball. 16. An adhesive sheet for facilitating entangled holding of the thread member is attached to the side of the straightening body facing the wound ball, or the tangled holding of the thread member is held on the side of the straightening body facing the wound ball. 15. The yarn member recovery device in veneer veneer unwinding according to any one of claims 9 to 14, wherein a minute convex portion for facilitating formation is provided.