JPS6229201Y2 - - Google Patents

Description

[Detailed description of the invention] The invention is a material pre-preparing machine used in the woodworking industry. More specifically, the present invention relates to a device that receives materials sent out from a processing machine and automatically stacks them.

Conventionally, a pre-picking device for a woodworking machine that receives and automatically stacks materials processed and sent out by a woodworking machine is used to take out materials with the starting end facing the table 1 of the woodworking machine, as shown in Figure 1 of the drawing. A delivery conveyor 3 is connected to the end of the conveyor 2, and the delivery conveyor 3 is raised and lowered by a raising and lowering means 4, and the height of the delivery conveyor 3 is sequentially changed by the thickness of the material to stack the materials on the cart 5. This method reliably takes out wide boards from the woodworking machine using the conveyor 2, transfers them to the delivery conveyor 3, and stacks them on the trolley 5. It was not possible to arrange the required number of thin square timbers into a group, turn the group over, and then stack them so that one side edge was aligned.

The present invention was developed in consideration of this current situation, and the material taken out from the woodworking machine to the take-out conveyor is adsorbed to a suction cup, and the rotating movement of the suction cup transfers it to the diagonal receiving conveyor. It is an object of the present invention to provide a device that automatically performs an operation of stacking a group of a required number of thin square timbers with one side edge aligned after inversion.

Next, an example of the implementation of the device related to the present invention will be explained based on the drawings.

In drawings 2 to 4, 6 is a frame;
Wheels 7, 7 for movement are attached to the lower part so that they can be raised and lowered by screw-type lifting means 8, 8, and a conveyor frame 10 whose one end faces a table 9 of a woodworking machine is mounted at the upper part, and the angle can be slightly adjusted by a tambuckle 11. The rollers 12 and 13 are pivotally supported at both ends of the conveyor frame 10, and the rollers 12 and 13 are
A take-out conveyor 14 for material divided into a plurality of strips is installed in a stretched manner, and at the terminal end of the take-out conveyor 14, a shaft 15 is attached to the frame 6 in the middle, and the conveyor 14 is normally held downwardly inclined by a cylinder 16. , when transferring the stacked materials to the trolley 17, a conveyor frame 18 is provided which is raised vertically by the cylinder 16, and wheels 19,
20 is pivotally supported, and a caterpillar type material receiving conveyor 21 is stretched between these wheels 19 and 20.
A material receiving arm 22 is attached to this receiving conveyor 21 at a substantially right angle. Reference numeral 23 denotes a suction cup 25 that protrudes between the plurality of take-out conveyors 14 from a support shaft 24 provided between the material take-out conveyor 14 and the receiving conveyor 21, and holds the material by suction on the mounting portion 26. Attach this swinging arm 23.
When the cylinder 27 is connected to the suction cup 25 and the material is sucked to the suction cup 25, the material on the receiving conveyor 21 is transferred from the position of the take-out conveyor 14 to the receiving arm 22 and returned to the take-out conveyor 14. 28 is the suction cup 2 mentioned above.
A stopper is installed perpendicularly to the material feeding direction at the end of the receiving conveyor 21 side of No. The required number of materials are arranged on the suction cup 25 by pressing them one after another. Reference numeral 29 denotes a blower that reduces the pressure of the suction cup 25, and is connected to the suction cup 25 through a flexible hose 30.A suction port 31 of this blower 29 is opened and closed by a sensor to be described later, and when it is closed, a suction force is applied to the suction cup 25. The control valve 32 is provided with a control valve 32 which allows air to be sucked from the side hole 31' when opened and prevents the suction cup 25 from being depressurized. 33 is a speed reducer motor that drives the material take-out conveyor 14, and is transmitted to the roller 13 by a chain or belt 34. 35 is a reducer motor that drives the material receiving conveyor 21, and the wheel 19 is driven by a chain or belt 36.
to be transmitted to. _S1 is a photoelectric material detection sensor installed in the middle of the material take-out conveyor 14, which does not detect when the material passes, but detects when the material stops on top of it, and drives the reduction gear motor for the material take-out conveyor 14 described above. 33, the control valve 32 provided for the suction force 31 in the blower 29 is closed, and the swing arm 23 is stopped.
This sensor _S1 is attached to a sliding rod 37 and movable in the direction of movement of the material in order to adjust its position according to the size of the material. _S2 is a photoelectric material detection sensor provided at the starting end of the material receiving conveyor 21, which detects when the material sucked by the suction cup 25 is carried onto the receiving conveyor 21, and stops the cylinder 27 as described above. , the control valve 31 is opened, and a timer described later is activated. _T1 ,
T ₂ , T ₃ , and T ₄ are timers, and T ₁ is activated by the sensor S ₂ to move the material take-out conveyor 14 until the material returns to a position where the suction cup 25 does not interfere with return, and then stops. T ₂ is activated by the tie-up of T ₁ and acts to move the take-out conveyor 14 toward the suction cup 25 after the suction cup 25 returns, and T ₃ is activated by the sensor S ₁ to cause the material to be received. When it comes into contact with the receiving arm 22 of the conveyor 21, the cylinder 27 is actuated to receive the suction cup 25 and take it out from the conveyor 21.
T ₄ is actuated by sensor S ₂ to move the receiving conveyor 21 downward when the material is supported by the receiving conveyor 21 and the receiving arm 22, so that the conveyor 21 returns to the thickness of the material. When the conveyor 21 has descended by 1, the sensor S ₂ or a timer (not shown in the drawing) combined with the sensor S 2 act to stop the conveyor 21 . LS ₁ and LS ₂ are limit switches that regulate the upper and lower limit positions of the receiving arm 22 on the material receiving conveyor 21, and LS ₂ is a limit switch that controls the receiving conveyor 21 when the receiving arm 22 that has descended sequentially by material thickness acts on it. LS ₁ is used to stop the conveyor 21 when the receiving arm 22 is actuated by the upward movement of the receiving conveyor 21.

As shown in FIG. 2, a narrow board is taken out from the table 9 of the woodworking machine onto the material take-out conveyor 14 of the device configured as described above, and this board passes over the sensor S ₁ by the rotation of the conveyor 14. When passing, the conveyor 14 continues to rotate because the sensor S ₁ does not perform a detection operation, and the conveyor 14 carries the material onto the suction cup 25 waiting at its terminal end, and the first one reaches the suction cup 25. When the material hits the stopper 28 attached to the stopper 28, subsequent materials are sequentially pressed against the stopper 28, and a predetermined number of materials are arranged on the suction cup 25 to form a group. As a result, when the material in contact with the group stops in front of the suction cup 25, the sensor _S1 detects this,
The take-out conveyor 14 is stopped, the control valve 32 is closed, and the suction force of the blower 29 is applied to the suction cup 25 to adsorb a group of materials, and then the cylinder 27 is operated to move the swinging arm 23 to receive the material. Swing it toward the conveyor 21 side. Therefore, the suction cup 25 that has suctioned the group of materials is transferred to the receiving conveyor 21.
The material is transferred to the receiving arm 22 of the conveyor 21.
press against. Then, sensor S ₂ detects the material and starts timers T ₁ , T ₃ , T ₄ and
Since the cylinder 27 is stopped and the control valve 32 is opened, the material is placed in the suction cup 2 while in contact with the receiving arm 22.
5 and slides onto the receiving conveyor 21 so that the lower edges are aligned. At this time, the take-out conveyor 14
is started by the timer T ₁ and rotates in reverse, returns the material to a position that does not prevent the return of the suction cup 25 and stops, and the cylinder 27 is reversely activated by the timer T ₃ to take out the suction cup 25 and move it to the rear of the conveyor 14. While returning the material to the sensor S2, the receiving conveyor 21 is activated by the timer _T4 and rotates downward, moving the receiving arm ₂₂ by the thickness of the material. stops.
At this time, the timer T ₂ started by the timer T ₁ described above rotates the take-out conveyor 14 in the forward direction, feeds the materials onto the returned suction cup 25 and arranges them, and the sensor S ₁ indicates that the next group has been completed. When detected,
The device operates in the same manner as described above, and the required number of materials sent out one by one from the woodworking machine are brought into close contact with each other to form a group, and each group is turned upside down by the suction cup 25 and placed onto the receiving arm 22 of the receiving conveyor 21. Transfer,
They can be stacked neatly on the conveyor 21 with one edge aligned. When the materials are stacked in this way, the receiving arm 22 gradually descends, and the lower limit switch LS ₂
When the position is reached, the LS ₂ is actuated to stop the above-mentioned pre-picking operation, and the cylinder 16 is actuated to raise the receiving conveyor 21 upright as shown in FIG. This is to transfer the stack of materials onto the trolley 17.

In the above-mentioned pre-picking operation, the sensor _S2 was used as a control means to move and stop the material receiving conveyor 21 by the thickness of the material, but the thickness that can be controlled by this sensor _S2 is generally about 2 cm. If the board or square timber is thicker than this,
The above-mentioned sensor _S1 is combined with a timer, and this timer adjusts the rotation time of the receiving conveyor 21, expanding the control range and making it possible to process thick plates and square pieces. Of course, stacking can be done in the same way.

The device related to the present invention takes narrow boards or thin square timbers sent out one by one from a woodworking machine, sends them to a suction cup using a conveyor, and arranges them on the suction cup.
When the required number is reached, the suction cup is moved to the receiving conveyor and the arranged materials are transferred to the receiving arm and stacked on top of each other, so the desired number of narrow boards or thin square timbers are stacked in multiple stages as a group. It allows operations to be performed automatically and efficiently.
However, since the material is transferred from the take-out conveyor to the receiving conveyor by rotating the suction cup, the material is transported reliably without slipping or falling, and during this time, the material is automatically turned over. This will be achieved.

In addition, since the material receiving conveyor of this device is provided with a downward slope, the received material falls on the receiving arm and becomes stable, and its lower edge abuts against the receiving conveyor, so that the material does not flow onto the receiving conveyor. Groups are stacked in an orderly manner with one edge aligned.
This can be directly transferred to a trolley by the upright receiving conveyor, and the materials that can be handled with this device are not only narrow boards and thin square timbers as mentioned above, but also wide boards and thick square timbers. By increasing the cushioning range of the suction cup, it has the unique effect of being able to handle chamfered or rounded materials.

[Brief explanation of the drawing]

FIG. 1 is a vertical side view of a conventional woodworking advance cutting machine. FIG. 2 is a longitudinal sectional side view showing an example of the implementation of the woodworking advance cutting machine according to the present invention. Figure 3 is a plan view of the same as above. FIG. 4 is a side view of the state in which the stacked materials are transferred to the cart. In the figure, 7 is a material delivery section of the woodworking machine, 14 is a material take-out conveyor, 21 is a material receiving conveyor,
22 is a receiving arm, 23 is a swinging arm, 25 is a suction cup, 27
is a means of undulation.

Claims (1)

[Scope of utility model registration request] A material take-out conveyor divided into multiple strips with its starting end facing the material delivery section of a woodworking machine, and a material take-out conveyor that is stretched downwardly at the end of the take-out conveyor and has a material receiving arm attached almost at right angles. a receiving conveyor; a swinging arm extending from a support shaft disposed between the receiving conveyor and the taking-out conveyor to between the plurality of taking-out conveyors and having a material suction cup attached to the projecting portion; The woodworking device is characterized in that it is provided with an undulation means for rotating the swinging arm to the top of the receiving arm of the receiving conveyor when the material is sucked to the suction cup, and returning the swinging arm when the material is delivered to the receiving arm. Material pre-collection device for machines.