JPS62105851A - Unwinding method for plywood veneer roll wound and apparatus therefor - Google Patents

Abstract

PURPOSE:To permit the automatic unwinding by eliminating the unwinding or correction operation by an operator by supplying air onto a plywood veneer at the unwinding position of a wound roll and transferring the unwound plywood veneer in perfect synchronization onto a relay conveyor. CONSTITUTION:A wound roll 3 is press-contact-revolved by driving an unwinding roller 21, and a relay conveyor 56 and a carrying-out conveyor 20 are synchronously driven. At this time, air is introduced and supplied by an air introducing and guide body 36 put into the inclined state in the unwinding direction of a plywood veneer. A negative pressure is generated in the air introduced and supplied from an air introducing hole 50 by the diffusion of air, and the unwinding top edge part of the plywood veneer is adsorbed temporarily onto the undersurface of the air introducing guide body 36. The unwinding top edge part of the adsorbed plywood veneer is transferred in succession onto the relay conveyor 56 and the carrying-out conveyor 20 through a guide plate 58, accompanied by the drive of the unwinding roller 21.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is a method for rolling up a veneer funeral board cut by a veneer lace and wound onto a reel at a winding position in order to transport it to a drying device. The method and apparatus for returning ξ will be described.

``Prior Art'' Conventionally, as shown in FIG. 6, a veneer veneer 1 cut by a heni A race is placed in a rotating roll 2 having an appropriate diameter in pressure contact with a site tribe roll at a winding position. The rolled ball 3 is rolled up and placed in the rolled ball stock area 4.
The reel 2 is temporarily stored at the reel 2 or transported as it is to the end of the reel stock area 4, and then at the unwinding position 5, both wheels of the reel 2 are supported on the reel receiver 7 fixed to the reel support 6, and then the reel 2 is unwound. Touch belt 8 on the upper outer circumference of ball 3
are brought into contact with each other, rewound, and transferred to a discharge conveyor IT connected to a conveyor 10 of the drying device 9.

That is, at the unwinding position 5 of the upper rolled ball stock area 4, the relatively thin veneer veneer 1 for the original sheet is normally unwound and transferred to the upper transport conveyor IO of the drying device 9, and the rolled ball stock area 4 is unwinded. The empty reel 2 after being returned is returned from the upper rewinding position 5 to the reel stock area 13 via a return rack 12 extending diagonally downward, and at the lower rewinding position 5,
Normally, the veneer veneer l for the middle plate, which is approximately twice as thick as the veneer veneer 1 for the original plate, is rewound and transferred to the lower conveyor 1, which has a slower conveyance speed than the upper conveyor 10.
0, and the empty reel 2 after rewinding is returned to the reel stock area 13 from the lower unwinding 1 position 5 through the reel return rack 12 that extends diagonally. .

"Problems to be Solved by the Invention" However, the veneer veneer l being rewound from the unwinding position 5 is in a state of falling under its own weight until it is transferred onto the carry-out conveyor 11 and is stably conveyed. This makes it extremely unstable.

When this falls, for example, in the relatively thin veneer veneer I in the upper row, the resin streaks and dry cracks that occur in the fiber direction tend to tear, and in the lower row, - Even with raw wood, we roll up veneer veneer 1 cut from low-grade parts such as sapwood and core wood, so even if it is almost twice as thick as the upper layer, it will not meet the above description. Similarly, there is a tendency to tear easily across the fiber direction.

Furthermore, when winding a narrow veneer veneer l, it is easy to curl from the tip of the winding veneer and fall off due to its own weight, and it tends to be deviated and transported. If the veneer veneer 1 is once torn, broken, or transported in an uneven manner, the operator must unwind the veneer 1 or change the state of transportation. It became necessary to make corrections, which significantly hindered work efficiency.

"Means for Solving the Problems" In view of the above, the present invention rotatably supports the rolled ball 3 of the veneer veneer 1 wound on the reel 2 with an appropriate diameter at the unwinding position 5. A rewinding guide member is wrapped around the lower outer periphery of the wound ball 3, and while a kite conveyor is brought into contact with the unwinding side of the wound ball 3, a rewinding roll that is in contact with the lower part of the wound ball 3 is driven. Then, air is supplied to the veneer veneer l at the unwinding position 5 of the winding ball 3, and the rewound veneer veneer l is transferred to the relay conveyor, thereby automating the unwinding.

"Example" Below, an example of an apparatus for directly implementing the present invention is shown in Appendix 1.
First, the configuration will be explained based on one drawing.

On the reel support 6, unwinding positions 5 corresponding to the number of stages of the transport conveyor 10 of the drying device 9 in the subsequent process are installed at regular intervals vertically. A reel holder 7 that supports a reel 2 formed by rewinding a reel 2 is fixedly attached thereto.

Between the unwinding position 5 and the drying device 9, the starting pulley shaft 1
A pedestal 15 is disposed with the terminal end being a free end, and the tip of the lot 17 of the pedestal fluid cylinder 16 pivotally supported by the pair of reel supports 6 is connected to the lower part of the free end. The frame 15 is supported swingably.

゛[Also, near the starting end of this pedestal 15, there is a starting end pulley 18.
The carry-out conveyor 20 is suspended between the terminal boot 919, and the unwinding roll 21 is supported near the terminal end of the pedestal 15, and is connected to an appropriate drive device and has a plurality of notches in the axial direction. has been done.

A plurality of auxiliary arms 23 on which swinging fluid cylinders 22 are pivotally supported are connected to the front part of the frame 150, and the base end of the swinging arm 24 is attached to the tip of the auxiliary arm 23, as well as the base end of the swinging arm 24 and the A connecting rod 26 connected to the rod 25 of the fluid cylinder 22 is pivotally supported.

Further, a double link 27 having a fulcrum at the lower part of the free end of the pedestal 15 is pin-connected to the auxiliary arm 23, and a lot 2 of a fluid cylinder 28 for the auxiliary arm is pivotally supported at the lower part of the pedestal 15.
The tip of 9 is connected to this double link 27, and the auxiliary arm 2
3 is able to rise and fall freely.

Further, from the vicinity of the reel receiver 7 of the pair of reel supports 6,
Guide rails 30 were each protruded a certain distance toward the veneer veneer transport side, and the upper cross beam 31 was suspended horizontally on the 30 guide rails, and the upper cross beam 31 was suspended horizontally at a constant interval above and below the 30 guide rails. A moving member 33 consisting of a lower cross beam 32 is movable forward and backward relative to the rolled ball 3 along a guide rail 30 by a moving fluid cylinder 34 attached to a pair of reel supports 6.

Of the moving member 33, at a plurality of locations at arbitrary intervals in the longitudinal direction of the upper cross beam 31, a guide conveyor 35 and an air guide member 36 having the following configuration are installed as each set to move the outer periphery of the rolled ball 3. It is attached in a protruding manner so that it can be tilted freely.

That is, the pushing fluid cylinder 38 is pivotally supported on the support plate 37 extending from the rear, and a double link 40 is attached to the upper part of the L section cross beam 31 of the lot 39 as a fulcrum. A belt 44 is suspended between a one-L guide pulley 41 attached to the tip of this double link 40 and a lower guide pulley 43 attached to the tip of a bracket 42 protruding from the front.
In addition, a tier pulley 46 is attached to the tip of the support arm 45 that is pivotally supported by the bracket 42, and a weight 47 is connected to the support arm 45 via a chain, a lobe, etc.
4 constitutes a guide conveyor 35 that keeps tension at all times.

Roughly speaking, the contact fluid cylinder 480 rod 49 pivotally supported at the lower part of the support plate 37 is tiltable about the lower guide pulley 43 portion as a fulcrum, and one has a lower closed portion widened toward the unloading direction. Alternatively, an air outlet guide body 36 having an air outlet hole 50 whose diameter becomes deeper toward the conveying direction is pivotally supported, and the other end is connected to the outer periphery of the rolled ball 3 via the heald 44. An abutment pulley 51 that abuts the part is pivotally supported.

Of the movable member 33, a corresponding number of guide rollers 52 are supported at the same phase portion as the auxiliary arm 23 extending in the longitudinal direction of the lower cross beam 32. An unwinding guide member 53 made of a chino, a lobe, etc. is hung in an endless manner with a weight 54 suspended between guide rollers 52 supported at the distal end, the base end, and the upper part of the pedestal 15, respectively. A plurality of locations on the lower outer periphery of the rolled ball 3 are wound around.

In addition, on both sides of each guide roller 52 supported by the lower cross beam 32, the lower outer periphery of the rolled ball 3 is pressed, and the moving member 3
A positioning pulley 55 for regulating the forward position of the rollers 3 is supported and slightly protrudes from each guide roller 52.

Further, in the longitudinal direction of the lower cross beam 32, a plurality of end pulleys 57 of the relay conveyor 56 are supported at arbitrary intervals, and above the end pulleys 57 and the guide rollers 52, plywood belts are provided for unwinding. Kite board 5 guiding the single board l
8 are arranged in an inclined manner.

On both sides near the starting end of the pedestal 15, guide rails 60 are installed to fit and support both ends of the starting end pulley shaft 59 of the relay conveyor 56, and the starting end of the relay conveyor 56 is connected to the pedestal 15.
The upper part is slidable.

Next, the action will be explained.

When mounting the reel 2 with the reel 3 wound on the reel holder 7 of the reel support 6, first install the mount 15 as shown by the two-dot chain line in FIG. is retracted to the lower limit position, the moving member 33 is retracted to the retracted position, and the auxiliary arm 23 and the swing arm 24 are retracted to the lower limit position.

After mounting reel 2, attach fluid cylinder l [50 lots 1
7 and swing the free end of the pedestal 15.
The unwinding roll 21 is urged toward the lower part of the outer circumference of the wound ball 3 with a constant pressure.

In synchronization with this, the swinging fluid cylinder 220 [1
5, extend the rod 29 of the auxiliary arm fluid cylinder 28, raise the auxiliary arm 23 and the swinging arm 24, and then release the pressure of the swinging fluid cylinder 22.
Winding the guide ja 52 located at the tip of the swinging arm 24 13F8
Abut against the outer periphery of the part.

At the same time, when the transfer fluid cylinder 34 is erected, the moving member 33 moves forward along the guide rail 30 until it comes into contact with the positioning pulley 55 or the outer periphery of the veneer plate 1 of the winding ball 3 on the delivery side, and then Pressure provides forward force.

Next, the rod 31 of the pushing fluid cylinder 38 is extended to bring the old upper guide pulley into contact with the upper outer periphery of the winding ball 3, and the contact pulley 51 is brought into contact with the veneer l1jf of the winding ball 3.
i1 Bring it into contact with the outer periphery of the unloading side.

Therefore, the lower outer periphery of the rolled ball 3 is connected to the unwinding guide member 53.
The upper outer periphery of the veneer veneer 1M on the output side follows the guide conveyor 35 and is in contact with it.

Under this condition, the unwinding roll 21 is driven to press and rotate the rolled ball 3, and the relay conveyor 56 and the carry-out conveyor 20 are simultaneously driven. At this time, from the air guide body 36, which is inclined in the direction of unwinding the plywood plate l,
Air is led out and supplied.

While the winding ball 3 rotates at least once as the unwinding roll 21 is driven, the unwinding tip of the veneer veneer l reaches between the contact pulley 51 and the positioning pulley 55. At this time,
Since the air led out and supplied from the air outlet hole 50 becomes wider or deeper in diameter toward the tip of the lower opening, negative pressure is generated due to the diffusion of the air, and the tip of the veneer veneer l is unwound. , the air is temporarily attracted to the lower surface of the air guide member 36.

The unwinding tip portion of the sucked veneer veneer l is sequentially transferred onto the relay conveyor 56 and the carry-out conveyor 20 via the guide plate 58 as the unwinding roll 21 is driven.

A detector such as a phototube is placed on the air outlet guide member 36 of the upper cross beam 31, and when the unwinding tip of the veneer veneer l is detected, the air supply is stopped.

As the unwinding of the veneer veneer 1 progresses, the positioning pulley 55 of the moving member 33 moves forward following the decrease in the diameter of the spool 3, and along with this, the relay conveyor 56 also moves along the guide rail 60 at its starting end. slides on the pedestal 15 and moves forward, making the transfer of the veneer veneer l smooth.

In addition, during unwinding, if the plywood veneer 1 is torn from tar lines or dry cracks that occur in the M-phase direction, or if the width is small, the unwinding will be interrupted. Therefore, use a detector to confirm the absence of this plywood veneer l,
Air is again led out and supplied from the air lead-out guide 36, and the unwinding of the veneer veneer 10 is restarted as described above.

Thereafter, the above operation is repeated, and when the rewinding is completed as shown in FIG. 2, the gantry 15 is retracted to the lower limit position, the moving member 33 is retracted to the retracted position, and the auxiliary arm 23 and the swinging arm 24 are retracted to the lower limit position. , the empty reel 2 is sent to the return rack 12 in preparation for the next rewinding operation.

"Effects" As described above, according to the present invention, the rolled ball 3 of the veneer veneer l wound with an appropriate diameter on the reel 2 is rotatably supported at the unwinding position 5, and the rolled ball 3 is rotatably supported at the unwinding position 5. The unwinding guide member 53 is wound around the outer periphery of the lower part, and the guide conveyor 35 is brought into contact with the upper unwinding side, and the unwinding roll 21 that contacts the lower part of the rolled ball 3 is driven, and in synchronization with this, the unwinding is performed. Since the air is supplied to the veneer funeral board l at the spring return position 5 of the ball 3, and the unwound veneer veneer l is transferred to the relay conveyor 56 in perfect synchronization, the impact when the page falls is alleviated, and the tar line is removed.
This prevents tearing from dry cracks, eliminates the need for the operator to unwind the veneer veneer l or to modify the conveyance conditions, and makes it possible to automate the unwinding work.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of the device of the present invention, FIG. 2 is an explanatory diagram of the same operation, and FIG. 3 is a partially cutaway plan view of FIG.
FIG. 4 is an enlarged side view of the main part, FIG. 5 is an enlarged bottom view of the air outlet guide, and FIG. 6 is a side view of the conventional device. l...Plywood veneer 2...Reel, 3...Ball, 5...Rewinding position, 6...Reel support
15... Frame 20... Unloading conveyor, 21...
Rewinding roll, 33... Moving member, 35... Kite conveyor, 36... Air delivery guide, 53... Rewinding guide member, 56... Relay conveyor

Claims (1)

[Scope of Claims] 1. A veneer veneer roll wound with an appropriate diameter on a reel is rotatably supported at the unwinding position, and an unwinding guide member is wound around the outer periphery of the lower part of the rolled ball. Also, while the guide conveyor is in contact with the upper unwinding side, the unwinding roll that is in contact with the lower part of the winding ball is driven, and in synchronization with this, air is supplied to the plywood veneer at the unwinding part of the winding ball. A method for unwinding a rolled veneer veneer ball, characterized by transferring the rewound veneer veneer to a relay conveyor. 2. A carry-out conveyor is placed near the start end of the pedestal, and a rewind roll is placed near the end of the stand on which the end end is swingable with the start end of the veneer veneer transport side as a fulcrum. A reel of rolled balls is supported on a provided reel support, and a movable member is placed on a guide rail that protrudes toward the plywood veneer delivery side of this reel support so that it can move forward and backward with respect to the rolled ball. A guide conveyor that contacts the upper outer periphery of the veneer veneer discharge side and an air outlet guide body are installed in parallel at the section, and at the bottom of the movable member, the starting end is slidable on the pedestal. Endless unwinding guide members surrounding the terminal ends of the arranged relay conveyors and the lower outer periphery of the rolled balls each support one pulley that is supported under tension, and furthermore, this unwinding guide member is supported under tension. A method for unwinding a veneer veneer ball, characterized in that the other pulley is arranged so as to be swingable relative to the outer periphery of the ball.