JPH0752104A - Veneer layout machine - Google Patents

Abstract

PURPOSE:To control the posture of a veneer correctly even in the case of curled veneer and transfer the same onto a plywood to bond the same by controlling the posture under a condition that the veneer is attracted forcibly. CONSTITUTION:Fore and rear servomotors are driven to traverse an attracting board 16 along a transversal rail 28. When the side end of the lengthwise direction of a veneer 35 is detected simultaneously by fore and rear detecting sensors 38 arranged on the reference line, it shows that the veneer 35 is attracted correctly by the attracting board 16 along the reference line. In this case, both motors are stopped and, subsequently, the servomotors are driven to move the attracting board 16 vertically along a vertical rail 19 into the lengthwise direction thereof. The servomotors are stopped at a position whereat the forward end of the widthwise direction of the veneer 35 is detected by a detecting sensor arranged on a reference line 39. Accordingly, the posture of the veneer 35 is positioned correctly under a condition that the same is attracted strongly on the attracting board 16 by suction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a veneer arranging machine for arranging veneers in a predetermined posture and carrying and adhering them onto plywood.

[0002]

2. Description of the Related Art In a veneer assembler in which a veneer on a lifter is sequentially conveyed and stuck to a plywood by a suction conveyance means, it is required to accurately convey the veneer onto the plywood. Although the attitude control of the veneer by the floating method has been proposed, there is a disadvantage in that the positioning becomes inaccurate and the control time becomes long when the edge of the veneer is deformed by curling. It was

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a veneer assembler capable of carrying and adhering a curled veneer onto a plywood by performing accurate posture control.

[0004]

The veneer machine of the present invention comprises:
In a machine that consists of a veneer lifter unit, a veneer attitude control unit, a plywood transport unit, and a veneer suction transport unit, and in a machine that transports and adheres veneers onto the plywood in an aligned state, the veneer attitude control unit A detecting means for detecting any one of the front and rear ends in the longitudinal direction and each end at any one end of the front and rear portions on a right-angled reference line; and a lateral moving means having a swinging fulcrum arranged at the front and rear portions of the suction cup. And a means for moving the suction plate forward and backward.

Here, the forward / backward moving means of the suction cup includes not only a means for moving forward / backward only the suction cup but also a means for integrally moving forward / backward the suction cup including a lateral movement means having a swing fulcrum.

[0006]

When the front and rear lateral moving means are simultaneously actuated, the suction cup moves parallel to the longitudinal reference line, and when one of the front and rear lateral moving means is actuated, the other lateral moving means is moved. When the suction plate is rotated around the swinging fulcrum of the moving means and the advancing / retracting means of the suction plate moves only the adsorbing plate forward / backward, it moves forward / backward in a predetermined posture relative to the reference line in relation to the lateral moving means. However, when moving the suction cup including the lateral movement means forward and backward,
Always travel forwards and backwards parallel to the longitudinal reference line.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to embodiments. As shown in FIGS. 1 and 2, a single plate lifter unit 1 and a single plate attitude control unit 2 are provided.
And the plywood conveying unit 3 are vertically arranged at a predetermined same pitch, and a single plate suction conveying unit 5 that reciprocates on the gate-shaped frame 4 from the single plate lifter unit 1 toward the plywood conveying unit 3 is arranged at the upper portion. The single plate suction / conveyance unit 5 mounts a slide base 7 on a rail 6 provided oppositely on the portal frame 4, and a ball screw 9 driven by a servomotor 8 is screwed onto the slide base 7. At the same time, the guide body 12 in which the first suction plate 10 and the second suction plate 11 are arranged at the same pitch as the above-mentioned pitch is guided so as to be able to move up and down.
A ball screw 14 driven by a servomotor 13 is screwed onto the motor 2.

As shown in FIG. 3, the single-plate attitude control unit 2 hangs a pair of sliding bodies 17 on the lower surface of a suction plate 16 having a large number of suction holes 15 formed on the upper surface in the longitudinal direction. Then, each sliding body 17 is guided to a vertical rail 19 opposite to the front and rear seat plates 18, a servo motor 20 is attached to the front seat plate 18, and a ball screw 21 rotatably driven by the servo motor 20 is attached. The ball nut 22 attached to the front surface of the suction board 16 is screwed together, and the pins 23 having the vertical axis as the axis are integrally hung on the back surfaces of the two seat plates 18, respectively, and the front pin 23A is moved laterally 24A. And the rear pin 23B engages with the lateral moving body 24B having a slot formed in the axial direction parallel to the longitudinal direction of the suction plate 16 through the axis of the pin 23B. , The lower surfaces of both lateral moving bodies 24 are respectively Suspended the slide 25 which is guided in the direction perpendicular to Kitate rail 19, each slider 25 trestle 26
The rails 28 are slidably guided to the horizontal rails 28 attached to the seat plates 27 that are integral with the upper part of the rail, and the ball nuts 29 are joined to the horizontal moving bodies 24 to rotate the ball nuts 29 in parallel with the horizontal rails 28. A ball screw 30 rotatably supported on a seat plate 27 is screwed into a timing gear 31 axially attached to the shaft end of the ball screw 30 and an output shaft of a servo motor 32 attached to the side surface of the mount 26. Timing gear 33
The timing belt 34 is meshed with and.

The single-plate arranging machine a constructed as described above is configured so that the single-plate 35 placed on the single-plate lifter unit 1 absorbs the single plate 35.
Of the single plate 35 on the suction plate 16 after the posture alignment by the single plate posture control unit 2 is performed by the second suction plate 10.
Adsorption is performed by the suction plate 11, and thereafter, the guide body 12 is raised by a required amount, and the sliding base 7 is slid by the required pitch toward the plywood conveying unit 3. The plate 35 is a plywood 36 that is conveyed onto the belt conveyor of the plywood conveying unit 3.
If the guide body 12 is accurately positioned above and the suction is released by lowering the guide body 12 by a required amount, the single plate 35 is accurately transferred and adhered onto the plywood 36 having the upper surface coated with the adhesive at the same time. The suction of the single plate 35 sucked by the first suction disk 10 is released, and the single plate 35 is sucked and sucked onto the suction disk 16 of the single plate attitude control unit 2. Next, the guide body 12 is raised by a required amount and the slide base 7 is slid toward the single plate lifter unit 1 to return to the initial state. The posture of the upper veneer 35 is controlled.

That is, as shown in FIG. 5, the front and rear servomotors 32 are driven to move the suction plate 16 laterally by the horizontal rails 28. At this time, one side end of the single plate 35 in the longitudinal direction is a right-angled reference line. When detected simultaneously by the front and rear detection sensors 38 arranged on the reference line 37 in the longitudinal direction, the single plate 35 indicates a state in which the single plate 35 is accurately adsorbed on the adsorption plate 16 along the reference line 37. Immediately after that, both servo motors 32 are stopped, and then the servo motors 20 are driven to suck 1
6 is moved longitudinally on the vertical rail 19, and the servomotor 20 is moved at a position where the forward end of the single plate 35 in the lateral direction is detected by the detection sensor 40 arranged on the reference line 39 in the lateral direction. When stopped, the single plate 35 is accurately positioned on the suction plate 16 while being firmly sucked.

Next, as shown in FIG. 6, when the single plate 35 is sucked onto the suction plate 16 in an oblique posture, the suction plate 16 is sucked.
When moving laterally, the front side edge of the veneer 35 first moves to the reference line 37.
Since it is detected by the upper detection sensor 38, the servo motor 32 on the detection side is stopped to stop the lateral movement on the front side, and the servo motor 32 on the rear side is continuously driven. When the suction plate 16 is swung in the direction of the reference line 37 around the center and the rear side end of the single plate 35 is detected by the rear detection sensor 38 on the reference line 37, the rear side servo motor 32 is also stopped. However, at this time, the side edge of the veneer 35 is positioned on the reference line 37. In this state, if the suction plate 16 is driven by the servo motor 20 and is vertically moved on the vertical rail 19, the short side of the veneer 35 is shortened. The servomotor 20 is stopped at the position where the forward end of the direction is detected by the detection sensor 40 arranged on the reference line 39 in the lateral direction, and the single plate 35 is accurately positioned within a predetermined tolerance.

As another embodiment of the single plate attitude control section 2, as shown in FIG. 4, a vertical axis is centered in the front and rear of the center of the lower surface of the suction plate 16 having a large number of suction holes 15 on the upper surface. And the front pin 23A is rotatably engaged with the lateral moving body 24A, and the rear pin 23B passes through the axis of the pin 23B and is parallel to the longitudinal direction of the suction plate 16. A sliding body 25 that engages with a lateral moving body 24B having a long hole formed in the axial direction in the long hole, and is guided to the lower surfaces of both lateral moving bodies 24 in a direction orthogonal to the axial direction.
And slidably guide the sliding bodies 25 to the horizontal rails 28 attached to the front and rear seat plates 27, respectively, and join the seat plates 27 to the front and rear of the upper surface of the sliding plate 41 integrally. Servo motors 32 are attached to the lower surfaces of the front and rear ends of the sliding board 41, and a ball nut 29 joined to each lateral moving body 24 is rotatably supported on a seat plate 27 in parallel with the lateral rail 28. And the timing belt 34 is meshed with the timing gear 31 axially attached to the shaft end of the ball screw 30 and the timing gear 33 axially attached to the output shaft of the servo motor 32. In the front and rear of the longitudinal direction, a pair of slidable bodies 17 are hung down to the left and right, and each slidable body 17 is guided to a vertical rail 19 that is installed in front of and behind the upper surface of the pedestal 26 so as to be integrated with a seat plate 18. Seat plate 1
8, a servomotor 20 is attached, and a ball screw 21 rotatably driven by the servomotor 20 is screwed into a ball nut 22 attached to the front surface of the sliding board 41. Therefore,
According to the single-plate attitude control unit 2 having the above configuration, the suction plate 16
Regardless of the posture, the side edge of the single plate 35 after posture control can always be positioned at the forward end on the reference line 37 in the longitudinal direction.

[0013]

As described above, according to the veneer arranging machine of the present invention, the posture can be controlled while the veneer is forcibly adsorbed, so that even a curled object can be accurately positioned in the extended posture. Therefore, the accuracy of sticking on the plywood is significantly improved and the quality is improved, and the attitude control of the veneer is performed while transferring the veneer to the veneer attitude control unit and returning to the veneer lifter unit. , There is an effect that the veneer can be efficiently worked on the plywood without making the cycle time redundant.

[Brief description of drawings]

FIG. 1 is a side view of a veneer machine a according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is an explanatory diagram of a main part of the single plate attitude control unit with a longitudinal central portion omitted.

FIG. 4 is an explanatory diagram of a main part as another embodiment of the single-plate attitude control unit, in which a central portion in a longitudinal direction is omitted.

FIG. 5 is an explanatory diagram showing a procedure for attitude control of a single plate.

FIG. 6 is an explanatory diagram showing a procedure for attitude control of a single plate.

[Explanation of symbols]

 1 veneer lifter section 2 veneer attitude control section 3 plywood transport section 4 portal frame 5 veneer suction transport section 6 rail 7 sliding table 8 servo motor 9 ball screw 10 first suction panel 11 second suction panel 12 guide body 13 Servo motor 14 Ball screw 15 Suction hole 16 Suction plate 17 Sliding body 18 Seat plate 19 Vertical rail 20 Servo motor 21 Ball screw 22 Ball nut 23 Pin 24 Horizontal moving body 25 Sliding body 26 Stand 27 Seat plate 28 Horizontal rail 29 Ball nut 30 Ball screw 31 Timing gear 32 Servo motor 33 Timing gear 34 Timing belt 35 Single plate 36 Plywood 37 Reference line 38 Detection sensor 39 Reference line 40 Detection sensor 41 Sliding board a Single plate assembly machine

Claims (2)

[Claims] 1. A machine which comprises a veneer lifter section, a veneer attitude control section, a plywood conveying section and a veneer suctioning and conveying section and which conveys and adheres veneers onto the plywood in an aligned state, wherein the veneer attitude control section ,
A detection means for detecting one of the front and rear ends of the veneer in the longitudinal direction and each end at any one end of the front and rear portions on a right-angled reference line, and a horizontal fulcrum having swing fulcrums arranged at the front and rear portions of the suction plate. A single plate assembly machine comprising moving means and means for moving the suction plate forward and backward. 2. The single-plate assembler according to claim 1, wherein the advancing / retracting means of the adsorbing disk is an integrally advancing / retracting adsorbing disk including a lateral moving means having a swing fulcrum.