JP2001130735A - Attitude correcting device for plate body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attitude correcting device so that the front end edge of a plate body is crossed generally perpendicular to the transport direction while the plate body is being transported by a conveyor. SOLUTION: An attitude correcting device comprises at least a conveyor 7 transporting a plate body 6, a correcting conveyor 13 installed, in the transport area of the conveyor 7, under the transport surface of the conveyor 7 through any distance ranging from a correction start position A to a correction completion position B and controllably fed at a speed lower than the transport speed V1 of the conveyor 7, and positioning bodies 14a and 14b installed on the correcting conveyor 13 projectedly from the transport surface 7a of the conveyor 7. The front end edge 6a of the plate body 6 transported on the conveyor 7 with a speed difference (V1-V2) between the conveyor 7 and correcting conveyor 13 is corrected so as to be crossed generally perpendicular to the transport direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a veneer veneer after a cut sheet in a wet state cut by a veneer race, a veneer veneer obtained by drying the cut veneer veneer with a veneer drier, and a veneer veneer. An adhesive is applied to the subsequent veneer veneer and the fiber direction thereof is parallel or orthogonal, and the plywood or the like (hereinafter collectively referred to as a plate) is laminated and adhered to the front edge of the plate while being transported by the transport conveyor. And a device for correcting the posture so as to be substantially perpendicular to the transport direction.

[0002]

2. Description of the Related Art Generally, in the manufacturing process of plywood, veneer veneer after cut sheet cut by veneer lace, veneer veneer obtained by drying the cut veneer veneer by veneer dryer, and further drying An adhesive is applied to the later veneer veneer, and the plywood laminated and bonded with the fiber directions parallel or orthogonal to each other is transported to the next processing step by a transport conveyor.

For example, a veneer dryer is transported in a state where a plurality of veneer veneers (for example, three) are arranged side by side at predetermined intervals in a direction perpendicular to the transport direction and with their fiber directions parallel. It is dried by hot air supplied on the way. Then, in the veneer veneer after drying taken out from the veneer dryer, the transport direction is changed to a substantially right angle and transported by the transport conveyor to the next processing device, that is, the veneer veneer mechanism device or the veneer veneer winding device. .

In the veneer veneer after drying by the veneer drier, the veneer veneer having a small width less than a fixed width is required to have an effective dimension length in order to secure an effective dimension length by a conveyor. A sized cutting device that cuts a portion less than the length, or a sized cut small-width effective sized long veneer is conveyed to a horizontal grooving device that connects end faces in parallel with the fiber direction.

[0005] The plywood after hot pressing taken out of the hot press is conveyed to a four-round sawing device by a conveying conveyor, and the four peripheral edges thereof are cut to make a final product. During this four-turn sawing, the plywood is transported by a transport conveyor to a longitudinal cutting machine installed on both sides in the vertical direction of the plywood and a transverse cutting machine installed in the lateral direction of the plywood. Has been done by

The veneer veneer or plywood conveyed by the conveyor is conveyed to the next processing step with its front edge substantially perpendicular to the conveying direction in order to smoothly perform the processing operation in the above-described processing step. It is desirable to be done.

For example, when a veneer veneer dried by a veneer drier is conveyed to a veneer veneer take-up device and wound on a take-up reel, the front edge of the veneer veneer is substantially in the conveying direction during the conveyance. In the orthogonal state, winding can be performed with the front edge of the veneer veneer and the axis of the take-up reel being substantially the same. For this reason, when the veneer veneer is wound up by the take-up reel into a roll, the rolled state is a cylindrical shape with the roll end faces substantially aligned, and when the veneer is unwound in the next processing step, the veneer veneer is wound. The plate will be transported onto the transport conveyor with its leading edge substantially perpendicular to the transport direction.

[0008]

However, veneer veneers or plywood on a conveyor are rarely conveyed with their front edges maintained in a posture substantially perpendicular to the conveying direction. In many cases, the paper is transported in a state of being biased. For example, when transporting the veneer veneer after drying described above to a veneer veneer winding device,
In the veneer dryer, three sheets are taken out of the veneer dryer in a state of being lined up by a plurality of pairs of roller conveyors as the transport means. Then, in order to wind the taken-out veneer veneer onto a take-up reel, the fiber direction is made orthogonal to the transport direction in order to match the fiber direction with the axial direction of the take-up reel. For this reason, it is transferred to a transport conveyor constituted by endless belts such as belts and chains installed between the roller rows, and transported to a veneer veneer winding position.

The veneer veneer to be dried by the veneer dryer is conveyed by a roller conveyor. A plurality of pairs of upper and lower rolls constituting the roller conveyor, particularly, intermediate positions in the longitudinal direction of the rolls, have their own weight and load deflection. Etc. have occurred. Therefore, the frictional force between the three veneer veneers arranged in a line and the roll that applies the conveying force is not uniform, which is one of the causes of uneven conveyance. In addition, during drying, the veneer veneer undergoes shrinkage, rampage, etc. due to drying, and changes in the properties of these veneer veneers also contribute to uneven transport. Furthermore, when the endless belt constituting the transport conveyor rises from between the roll rows of the roller conveyor to transfer the veneer veneer, the contact state between the veneer veneer and the endless belt during the transfer, the veneer veneer during transport. The applied frictional force also constitutes one factor of the biased conveyance. Note that the unbalanced conveyance caused by the contact state between the endless belt and the veneer veneer or the back of the plywood, and the frictional force applied to the veneer veneer or the plywood at the time of conveyance is the conveyance process to the next processing step at the time of the plywood manufacture described above. It is common to

Accordingly, the present invention provides a veneer veneer after a cut sheet in a wet state cut by a veneer lace, a veneer veneer obtained by drying the cut veneer veneer with a veneer dryer, and a veneer after drying. In the process of transporting a plywood or the like (hereinafter collectively referred to as a “plate”) laminated with the adhesive applied to the veneer and the fiber direction parallel or orthogonal to each other (hereinafter collectively referred to as “plate”), the front edge of the plate is transported. An apparatus for correcting a posture so as to be substantially orthogonal to a direction is provided.

[0011]

Means for Solving the Problems and Effects of the Invention In order to solve the above-mentioned problems, a first structure of the plate body posture correcting apparatus according to the present invention comprises a transfer conveyor for transferring a plate, and a transfer conveyor for the plate. A moving body that is installed over an arbitrary distance from a straightening start position to a straightening completion position below a transfer surface of the transfer conveyor in a transfer area and is slower than the transfer speed of the transfer conveyor. The moving body further comprises at least a positioning body protruding from the conveying surface of the conveying conveyor, and a speed difference between the conveying conveyor and the moving body causes a front edge of a plate conveyed on the conveying conveyor to move. It is characterized in that it is corrected so as to be substantially perpendicular to the transport direction.

The transport conveyor for transporting the plate is constituted by winding a plurality of rows of endless belts such as chains, timing belts and belts at arbitrary intervals in a direction perpendicular to the transport direction. Between the endless belt rows at an arbitrary interval in a direction perpendicular to the transport direction of the transport conveyor, a positioning body that abuts two places at the front edge of the plate body is protruded from the transport surface of the transport conveyor to the movable body. By being mounted, this moving body moves from the correction start position to the correction completion position,
The positioning body can be moved.

The moving bodies are positioned below the conveying surface of the conveying conveyor, and are arranged in a pair at right and left at an arbitrary interval in a direction orthogonal to the conveying direction.
It is constituted by a straightening conveyor around which an endless belt such as a belt is wound. For this reason, the upper track surface of the straightening conveyor is located lower than the upper track surface of the transport conveyor, and does not contact the back surface of the plate that is transported on the transport conveyor.

The straightening conveyor has one of the shafts installed before and after connected by a connecting shaft, and the motor is connected to the connecting shaft. The conveying speed of the pair of right and left straightening conveyors is set to be lower than the conveying speed of the conveying conveyor. Suppose that the plate conveyed on the conveyor reaches the correction start position, and one of the pair of positioning bodies waiting on a line perpendicular to the conveyance direction has one of the two positions at the front end thereof. Upon contact, the plate body on the contact side with the positioning body follows the transport speed of the straightening conveyor.

That is, the plate is sent forward by the endless rotation of the transport conveyor on which the back side is placed, and the plate on the side whose front end is in contact with one of the positioning members is Following the transport speed of the straightening conveyor, the rear surface side slips with the upper surface of the transport conveyor. On the other hand, since the sheet is skewed and conveyed, the front end side of the plate body that is not in contact with the other positioning body is sent forward by the conveyance speed of the conveyor. Due to the speed difference between the straightening conveyor and the conveyor,
The plate body rotates with the front end portion in contact with one positioning body as a fulcrum, and the other front end side rotates toward the other positioning body.

When the two front ends of the plate come into contact with the pair of positioning members, the posture of the plate is corrected in a direction substantially orthogonal to the conveying direction. At this time, the plate follows the transport speed of the straightening conveyor, and the entire back side and the upper surface of the transport conveyor are in a slip state. Then, when the pair of positioning bodies turn back the pulley portion located at the front end in the transport direction of the straightening conveyor at the straightening completion position, the contact with the two front ends of the plate body is released. The plate body whose posture has been corrected is transported to the next processing step at the transport speed of the transport conveyor.

The straightening completion position (length of the straightening conveyor in the conveying direction) is set by the maximum amount of deviation of the plate conveyed on the conveying conveyor, the conveying speed of the conveying conveyor, and the conveying speed of the straightening conveyor. You. If the plate to be conveyed on the conveyor is at the set maximum deviation amount, the plate is corrected at the correction completion position in a direction substantially orthogonal to the conveying direction. In addition, if the deviation amount of the plate body is within the maximum deviation amount, before the correction completion position,
The posture of the plate is corrected in a direction substantially perpendicular to the transport direction. Therefore, until reaching the correction completion position, the two front end portions of the plate abut against the pair of positioning bodies, and follow the transport speed of the correction conveyor. In addition, when the maximum deviation amount is changed, any one of the above numerical values is changed, but a method of changing the conveying speed of the straightening conveyor is simple.

The moving body may be a pair of right and left straightening conveyors as described above, or may be located below a conveying surface of the conveying conveyor and may be arranged at arbitrary intervals in a direction orthogonal to the conveying direction of the conveying conveyor. It is also possible to use a pair of reciprocating movement mechanisms installed on the left and right. This reciprocating mechanism is
For example, it is constituted by a fluid cylinder, a rack gear meshed with a pinion gear, and the like. The positioning body is reciprocated between a correction start position and a correction completion position by a fluid pressure or a meshing movement.

In addition, in addition to the above-mentioned configuration, the moving body can reciprocate at its tip with a support shaft supported below the transport conveyor as a fulcrum, and can be arranged at arbitrary intervals in a direction orthogonal to the transport direction of the transport conveyor. It is also possible to use a pair of support bars provided on the left and right. Then, a positioning body is attached to the tip of the support rod so as to protrude from the conveyance surface of the conveyance conveyor, and the support shaft is rotated within a predetermined angle, so that the positioning body reciprocates between the correction start position and the correction completion position. It is to let.

When the movable body is constituted by the reciprocating mechanism and the rotatable support rod, if both are connected by a connecting shaft like a pair of right and left straightening conveyors, it is possible to use a common drive source. It is easy and convenient.
When the positioning bodies located on the left and right sides are controlled to separate and independent transfer speeds as a usage form, a separate drive source is provided for each of the moving bodies.

It is also possible to detect the amount of deviation of the plate before the plate reaches the correction start position, and to control the position of the left and right positioning members at independent transfer speeds to correct the posture of the plate. It is possible. For this reason, an attitude detection position for detecting the biased attitude of the plate body is provided upstream of the straightening start position of the transport conveyor. At this posture detection position, a pair of positioning bodies provided at the correction start position and detectors are installed at left and right positions which have the same phase on a line orthogonal to the transport direction. The bias amount of the plate body is obtained based on which one of the left and right position detectors has detected first, and the deviation amount of the plate body based on the deviation of the detection timing when the detection is performed by the remaining detectors.

The deviation of the detection timing can be obtained as a pulse amount by a pulse transmitter provided on the conveyor. Then, based on a distance setting device that sets a distance from the detector position of the posture detection position to the positioning body of the correction start position, when the pulse amount of the set distance is counted up, the transfer control of the left and right positioning bodies is performed. Is what you do. For example, stop the transfer of the left and right positioning bodies until the pulse amount for the deviation of the detection time is counted up,
The transfer is started after the pulse amount counts up and the two front ends of the plate come into contact with the left and right positioning bodies. Also, only until this pulse amount counts up,
The transfer control is performed by setting the transfer speed of the positioning body located on the side detected later with a higher speed than the transfer speed of the positioning body located on the side detected earlier.

In order to solve the above-mentioned problems, a second configuration of the plate body posture correcting apparatus according to the present invention comprises a conveyor for conveying the plate, and an arbitrary interval in a direction perpendicular to the conveying direction of the conveyor. A pair of left and right sides, and a pair of detectors for detecting that the front edge of the plate abuts on the positioning body, the pair of detectors being provided so as to be able to undulate with respect to the conveyance surface. When both of the front edge of the plate conveyed on the conveyor are detected by the pair of detectors, the positioning body in the upright state is lowered below the conveyance surface so that the plate is substantially orthogonal to the conveyance direction. It is characterized in that it is corrected.

When the plate body is a vulnerable veneer veneer, for example, a veneer veneer having a small thickness in a wet state, or when the transport speed of the transport conveyor is relatively high, the plate body is placed on a transport conveyor whose rotation is controlled. If you pause, the front end will buckle,
There is a risk of tearing from the fiber direction. Conversely, when the plate body is a veneer veneer having relatively rigidity, for example, a veneer veneer having a thickness after drying, a plywood, or the like, or when the transport speed of the transport conveyor is relatively slow, the transport is controlled by rotation. It is also possible to temporarily stop the plate on the conveyor.

In this case, it is possible to correct the posture of the plate by attaching a pair of positioning bodies to the left and right so as to be able to undulate with respect to the conveying surface of the conveying conveyor in a direction orthogonal to the conveying direction on the conveying conveyor. That is, a detector is installed on the plate body transport side of this positioning body, and one of the two front end portions of the plate body transported on the transport conveyor temporarily stands by on a line orthogonal to the transport direction. When one of the pair of positioning members abuts, the plate body on the contacting side with the positioning member temporarily stops. This contact state is detected by one of the detectors, and the plate body is set at the front end in contact with one of the positioning bodies as the fulcrum with the conveyance of the conveyance conveyor, and the other front end side is the other of the positioning bodies. Contact while rotating toward. For this reason, two front ends of the plate are brought into contact with each other by a pair of positioning members, and the posture of the plate is corrected so as to be substantially orthogonal to the transport direction. When this contact time is detected by the other detector, the plate is transported to the next processing step on the transport conveyor if the positioning body in the upright state is lowered below the transport surface.

[0026]

Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 to 3, a plurality of chain wheels or pulleys 3, 4 are arranged on a pair of upper and lower shafts 1, 2 supported in front and rear in the transport direction at arbitrary intervals in a direction orthogonal to the transport direction. Attach. A plurality of endless belts 5 such as chains, timing belts, belts and the like are wound between the chain wheels or pulleys 3 and 4 to constitute a conveyor 7 for conveying the plate 6. Between the five rows of endless belts, a pair of left and right pulleys or pulleys 10 and 11 are attached to a pair of shafts 8 and 9 supported before and after in the transport direction in a direction perpendicular to the transport direction. Chain between 10, 11
A straightening conveyor 13 around which an endless belt 12 such as a timing belt or a belt is wound is installed. As shown in FIG. 3, the upper track surface 13 a of the straightening conveyor 13 is located below the conveying surface 7 a of the conveyor 7, and does not contact the back surface of the plate 6 conveyed on the conveyor 7.

Positioning members 14a and 14b are attached to the two left and right endless belts 12 at equal intervals at positions protruding from the transfer surface 7a of the transfer conveyor 7, respectively. The positioning members 14a and 14b are in contact with two portions of the front edge 6a of the plate 6, and are movable from a correction start position A to a correction completion position B by the rotation of the correction conveyor 13. The straightening conveyor 13 has one of the shafts 8 and 9 installed in the front and rear as a connecting shaft that follows the driving of the motor 15. The conveying speed V2 of the straightening conveyor 13 is set to be lower than the conveying speed V1 of the conveying conveyor 7 whose rotation is controlled by a motor 16 connected to one shaft 2 of the conveying conveyor 7.

In this state, if the plate 6 conveyed on the conveyor 7 is eccentrically conveyed and reaches the correction start position A as shown in FIG. 1, it stands by on a line perpendicular to the conveying direction. One of the positioning members 14a has
The parts abut. At this time, the plate 6 that is in contact with one of the positioning bodies 14a follows the transport speed V2 of the correction conveyor 13, and the plate 6 that is located on the opposite side is still at the transport speed V1 of the transport conveyor 7. I am following.

That is, the plate body 6 is fed forward by the endless rotation of the conveyor 7 on which the back side is placed, and the plate body on the side whose front end is in contact with one positioning body 14a. 6 is the conveying speed V of the straightening conveyor 13
Following the step 2, the rear surface side slips with the upper surface of the conveyor 7. On the other hand, since the sheet is skewed, the front end portion 6a of the plate 6 not in contact with the other positioning member 14b is sent forward by the transfer speed V1 of the transfer conveyor 7. Due to the speed difference V1-V2 between the straightening conveyor 13 and the conveyor 7, during the conveyance, the plate 6 is moved forward by the front end 6 a in contact with one of the positioning bodies 14 a.
, The other front end 6a rotates toward the other positioning body 14b.

The two front ends of the plate 6 are a pair of positioning members 1
When the plate 6 comes into contact with 4a and 14b, the posture of the plate 6 is corrected in a direction substantially orthogonal to the transport direction. At this time, as shown in FIG. 2, the plate 6 is transported by the transport speed V2 of the straightening conveyor 13.
, And the entire rear surface side and the upper surface of the conveyor 7 are in a slip state. Then, at the correction completion position B, the pair of positioning members 14a and 14b
When the portion of the pulley 8 located at the front end in the conveyance direction 3 is turned back, the contact with the two front end portions 6a of the plate body 6 is released. The plate body 6 whose posture has been corrected is transported to the next processing step at the transport speed V1 of the transport conveyor 7.

In this embodiment, the length from the correction start position A to the correction completion position B is determined by the length of the correction conveyor 13 in the transport direction. This length is determined by the maximum amount of deviation of the plate 6 conveyed on the conveyor 7, the conveyor speed V 1 of the conveyor 7, and the conveyor speed V 2 of the straightening conveyor.
And is set by If the plate member 6 conveyed by the conveyor 7 has the maximum deviation amount set, the plate member 6 is corrected at the correction completion position B in a direction substantially orthogonal to the conveyance direction. Further, if the amount of deviation of the plate 6 is within the maximum deviation, the posture of the plate 6 is corrected in a direction substantially orthogonal to the transport direction before the correction completion position B. Therefore, up to the correction completion position B, the two positions of the front end 6a of the plate 6 are paired with the pair of positioning members 14a, 1a.
4b, and follows the transport speed V2 of the straightening conveyor 13. It should be noted that, when the maximum deviation amount is changed, any one of the above numerical values is changed.
The method of changing the transfer speed V2 is simple.

In order to enable the pair of positioning members 14a and 14b to move from the correction start position A to the correction completion position B, in addition to the above-described form of the pair of right and left correction conveyors 13, the following forms are used. It is also possible. That is, it is located below the transport surface 7a of the transport conveyor 7,
A pair of reciprocating mechanisms is installed on the left and right at arbitrary intervals in a direction orthogonal to the transport direction of the transport conveyor 7. For example,
As shown in FIG. 4, the rodless fluid cylinder 17 is installed to be inclined downward in the transport direction. The positioning members 14a and 14b are attached to the rodless fluid cylinder 17 so as to protrude from the transfer surface 7a at the correction start position A, and the transfer speed is set to V2 as in the case of the correction conveyor 13 described above. The rodless fluid cylinder 17 is attached to the positioning body 14a, 14b by the downward inclination mounting.
Is immersed below the conveying surface 7a at the correction completion position B, and the contact state with the front end 6a of the plate 6 is released.

In the reciprocating mechanism shown in FIG. 5, a reciprocating surface of a rack gear 19 meshed with a plurality of pinion gears 18 provided in a pair on the left and right is inclined downward in the transport direction. For this reason, the positioning members 14a and 14b are attached to the rack gear 19 so as to protrude from the transport surface 7a at the correction start position A, and the transport speed is set to V2 similarly to the above-described correction conveyor 13. Since the transfer surface of the rack gear 19 is inclined downward, the positioning members 14a, 14b
Is immersed below the conveying surface 7a at the correction completion position B, and the contact state with the front end 6a of the plate 6 is released.

As shown in FIG. 6, the positioning members 14a and 14b are moved from the correction start position A to the correction completion position B with the support shaft 20 supported below the conveyor 7 as a fulcrum and the tip thereof can reciprocate. It is possible that it is possible. That is, a pair of left and right support rods 21 are attached to the support shaft 20 at arbitrary intervals in a direction orthogonal to the transport direction of the transport conveyor 7, and positioning members 14 a and 14 b are attached to the tips of the support rods 21. Positioning members 14a and 14b are attached to the tip of the support rod 21 so as to protrude from the transfer surface 7a of the transfer conveyor 7, and the rotation speed of the support shaft 20 within a predetermined angle is adjusted to the transfer speed of the correction conveyor 13 described above. Similarly, by rotating the positioning members 14a and 14b as V2, the positioning members 14a and 14b are reciprocated between a correction start position A and a correction completion position B.

The amount of deviation of the plate 6 is adjusted to the correction start position A.
Is detected in advance before the position is reached, and the positioning body 1 positioned on the left and right
4a and 14b are controlled to separate and independent transfer speeds,
It is also possible to correct the posture. As shown in FIG. 7, an attitude detection position C for detecting the biased attitude of the plate 6 is provided upstream of the correction start position A of the conveyor 7. At this posture detection position C, a pair of positioning bodies 14a and 14b provided at the correction start position A and detectors 23a and 23b are installed at left and right positions having the same phase on a line orthogonal to the transport direction. This detector 23
a and 23b may be of a contact type such as a limit switch, for example, a non-contact type such as a transmissive photoelectric tube or the like, and a plate body may be determined by which of the left and right position detectors 23a and 23b has detected first. The deviation amount of the plate body 6 is obtained based on the deviation between the deviation posture of the plate 6 and the detection timing when it is detected by the remaining detector 23b.

As shown in FIG. 8, the deviation of the detection timing can be obtained as a pulse amount by a pulse transmitter 24 installed on the conveyor 7. Then, the pulse amount of the set distance L is counted up based on the distance setter 25 which sets the distance L from the detector positions 23a and 23b of the posture detection position C to the positioning bodies 14a and 14b of the correction start position A. At this time, the drive controller 26 controls the transfer of the left and right positioning bodies 14a and 14b.

As one form of the transfer control, the transfer of the left and right positioning bodies 14a and 14b is stopped until the pulse amount corresponding to the shift of the detection timing is counted up. This is because even if the plate 6 on the side detected by the detector 23a is conveyed by the distance L and abuts on one of the positioning bodies 14a, the plate 6 on the side detected by the detector 23b abuts until the plate 6 on the side abuts. Of the conveyor 13a is stopped. That is, the pulse amount corresponding to the shift of the detection timing after the transport of the distance L is counted up, and the plate 6
Are located at the left and right positioning members 14a, 14a.
It is in a stopped state until it comes into contact with b. During this time, with the conveyance of the conveyor 7, the plate body 6 comes into contact with the other front end side rotating toward the other positioning body 14 b, with the front end contacting the one positioning body 14 a as a fulcrum. After the contact, the correction conveyors 13a and 13b are driven at the same speed by the drive controller 26, and
The front end of the left and right positioning members 14
a and 14b to be aligned.

As another mode of the transfer control, the right and left straightening conveyors 13a and 13b are controlled independently while independently changing the transport speed. That is, when the plate 6 on the side detected by the detector 23a is conveyed by the distance L and abuts on the one positioning body 14a, the rotation of the one correction conveyor 13a is controlled by the conveyance speed V2. Thereafter, the pulse amount corresponding to the difference in the detection timing is counted up, and when the front end of the plate body 6 on the side detected by the detector 23b comes into contact with the other positioning body 14b, the other correction conveyor 13b is moved to the transport speed V2. Faster transport speed V3
To control the rotation. The transport speed V3 is calculated based on the transport speed difference (V3-V2) in the distance from the correction start position A to the correction completion position B based on the difference in the detection timing (the amount of deviation of the plate 6). The speed that can be eliminated is determined in the drive controller 26. That is, the other positioning body 14b gradually catches up with the one positioning body 14a from the correction start position A to the correction completion position B, and at the correction completion position B, the left and right positioning bodies 14b.
a and 14b are located on a line substantially orthogonal to the transport direction.

When the plate body 6 is a veneer veneer vulnerable, for example, a veneer veneer having a small thickness in a wet state, or when the transport speed of the transport conveyor 7 is relatively high, the transport conveyor 7 whose rotation is controlled is controlled. When the plate 6 is temporarily stopped, the front end 6a may buckle or break in the fiber direction. Conversely, when the plate 6 is a veneer veneer having relatively rigidity, for example, a veneer veneer having a thickness after drying, a plywood, or the like, or when the transport speed of the transport conveyor 7 is relatively slow, the rotation is controlled. It is also possible to temporarily stop the plate 6 on the transfer conveyor 7.

In this case, a pair of positioning bodies 14a and 14b are mounted on the left and right so as to be able to undulate with respect to the transport surface 7a of the transport conveyor 7 in a direction perpendicular to the transport direction on the transport conveyor 7 to correct the posture of the plate body 6. It is possible to do. That is, as shown in FIG. 9, a contact type detector such as a limit switch is provided on the side of the positioning body 14a, 14b on which the plate 6 is conveyed, or near the transmission side of the positioning body 14a, 14b. Non-contact detectors 27a, 27b
Are installed respectively. If one of the two front end portions 6a of the plate 6 conveyed on the conveyor 7 comes into contact with a pair of positioning members 14a waiting on a line orthogonal to the conveyance direction, the plate 6 contacts the positioning member 14a. The contact side plate 6 temporarily stops. This contact state is detected by one of the detectors 27a, and with the conveyance of the conveyance conveyor 7, the plate body 7 uses the front end 6a in contact with the one positioning body 14a as a fulcrum, and the other front end The 6a side contacts the other positioning body 14b while rotating toward the other positioning body 14b.

For this reason, the two front ends of the plate 6 are abutted by a pair of positioning members 14a and 14b, and the posture of the plate 6 is corrected so as to be substantially orthogonal to the transport direction. When this contact time is detected by the other detector 27b, if the positioning members 14a, 14b in the upright state are caused to fall down below the transport surface 7a by rotating the rotating shaft 28 substantially 90 degrees, the plate body 6 becomes It is transported on the transport conveyor 7 to the next processing step.

The present invention can be carried out by modifying a part of the above-described embodiments without departing from the fundamental technical idea of the present invention and without significantly impairing the effects of the present invention. Within the technical scope of

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an operation state of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a side view showing another embodiment of the present invention.

FIG. 5 is a side view showing another embodiment of the present invention.

FIG. 6 is a side view showing another embodiment of the present invention.

FIG. 7 is a plan view showing another embodiment of the present invention.

FIG. 8 is a block diagram showing an embodiment of correcting the posture of the plate.

FIG. 9 is a side view showing another embodiment of the present invention.

[Explanation of symbols]

 6 Plate 7 Conveyor 7a Conveying surface 13 Straightening conveyor 14 Positioning body A Straightening start position B Straightening completion position C Posture detection position

Claims (10)

[Claims] 1. A transport conveyor for transporting a plate body, and installed within a transport area of the transport conveyor over an arbitrary distance from a straightening start position to a straightening completion position below a transport surface of the transport conveyor, A moving body that is controlled to be slower than the conveying speed of the conveyor, and at least a positioning body that is attached to the moving body so as to protrude from a conveying surface of the conveyor, and that the moving conveyor and the moving body An apparatus for correcting a posture of a plate body, wherein a front edge of the plate body conveyed on the conveyor is corrected so as to be substantially perpendicular to a conveying direction by a speed difference. 2. The moving body, wherein an upper track surface is located below a conveying surface of the conveying conveyor, and a pair of correcting conveyors are installed on the left and right at arbitrary intervals in a direction orthogonal to the conveying direction of the conveying conveyor. The plate body posture correcting apparatus according to claim 1, wherein two positioning members are attached to the correction conveyor at equal intervals so as to protrude from a transfer surface of the transfer conveyor. 3. A straightening conveyor having a pair of right and left movable bodies, the upper track surface of which is located below the transporting surface of the transporting conveyor, and an arbitrary interval in a direction orthogonal to the transporting direction of the transporting conveyor. Composed by
The right and left pair of straightening conveyors are connected by a connecting shaft and driven in synchronization with driving of a motor.
An apparatus for correcting a posture of a plate according to the above. 4. A correction conveyor having a pair of right and left correction conveyors, the upper track surface of which is located below the conveyance surface of the conveyor, and the movable body is disposed at an arbitrary interval in a direction orthogonal to the conveyance direction of the conveyor. Composed by
3. The apparatus according to claim 1, wherein a motor is attached to each of the pair of right and left straightening conveyors, and the left and right straightening conveyors are driven at the same speed or separately at different speeds. 5. The moving body comprises a pair of reciprocating moving mechanisms which are located below a conveying surface of the conveying conveyor and are installed on a pair of left and right sides at an arbitrary interval in a direction orthogonal to the conveying direction of the conveying conveyor. 2. The plate posture correcting device according to claim 1, wherein a positioning body is attached to the reciprocating mechanism so as to protrude from a conveying surface of the conveying conveyor. 6. The reciprocating mechanism includes a pair of reciprocating mechanisms that are located below a transport surface of the transport conveyor and are disposed at right and left sides at arbitrary intervals in a direction orthogonal to the transport direction of the transport conveyor. 3. The plate posture correcting device according to claim 1, wherein the pair of left and right reciprocating mechanisms are connected by a connecting body and driven in synchronization with the driving of each reciprocating mechanism. 7. The reciprocating mechanism is provided below the transport surface of the transport conveyor, and a pair of reciprocating mechanisms are installed at right and left at arbitrary intervals in a direction orthogonal to the transport direction of the transport conveyor. 3. The apparatus according to claim 1, wherein said pair of left and right reciprocating mechanisms function independently and independently, and drive the right and left correction conveyors at the same speed or independently at different speeds. . 8. The moving body has a support shaft supported below the transport conveyor as a fulcrum, and a tip of the movable body can reciprocate. The movable body can be paired at right and left at an arbitrary interval in a direction orthogonal to the transport direction of the transport conveyor. 2. The apparatus for correcting a posture of a plate body according to claim 1, wherein the positioning body is constituted by an installed support rod, and a positioning body is attached to a tip portion of the support rod so as to protrude from a transport surface of the transport conveyor. 9. A pair of detectors in which a position orthogonal to the transport direction and the position orthogonal to the transport direction are installed in phase at an attitude detection position upstream of the correction start position, and a pulse transmitter installed on the transport conveyor. And a distance setting device for setting a distance from a detector position of the posture detection position to a positioning body of the correction start position, and a pair of detectors for detecting two front ends of the plate conveyed on the conveyor. 2. The method according to claim 1, further comprising: determining a shift in the detection timing of each of the detectors based on the pulse amount when detecting, and controlling a transfer speed of the positioning body positioned on the left and right when the pulse amount of the set distance is counted up. Plate body posture correction device. 10. A transport conveyor for transporting a plate body, and a pair of left and right positioning bodies provided at arbitrary intervals in a direction orthogonal to the transport direction of the transport conveyor, and attached to the transport surface so as to be able to undulate. A pair of detectors for detecting that the front edge of the plate abuts on the positioning body, and a pair of detectors of the front edge of the plate conveyed on the conveyor.
When the position is detected by a pair of detectors, the positioning body in an upright state is laid down below the conveyance surface, and the plate is corrected so as to be substantially orthogonal to the conveyance direction. apparatus.