JPS5847962B2 - Veneer tanpantou banjiyoubutsuno - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for setting a ruler on a plate-like object such as a veneer veneer.

For the first time, while transporting a plate-shaped object such as a plywood veneer, it has been conventionally done to bring the tip of the plate-shaped object into contact with a regulating body to draw out a ruler. Various devices have been proposed.

However, the conventional methods and devices have the following disadvantages, and it has been desired to improve their practicality.

That is, by bringing the tip of the plate-like object into contact with the regulating body while conveying the plate-like object at a relatively low speed, the problem of the tip of the plate-like object being damaged or folded due to inertia is less likely to occur. However, since there is little risk of the plate-like object bouncing off the regulating body due to a collision, it is possible to perform accurate ruler alignment, but on the other hand, conveying the plate-like object at a low speed inevitably reduces processing efficiency. This may lead to problems that worsen the situation.

On the other hand, if the plate-shaped object is conveyed at a relatively high speed so that its tip comes into contact with the regulating body, the apparent processing efficiency improves, but the tip of the plate-shaped object may be damaged or In addition to the inconvenience of folding over each other due to inertia, the plate-like object bounces off the regulating body immediately after the collision, making ruler setting inaccurate, and furthermore, it takes time to correct the bounce, which can cause problems. For example, in the process of assembling veneer veneer at a plywood factory, assembly speed directly affects the number of plywood produced, and assembly accuracy affects the quality and quality of the plywood. In any case, it was extremely inappropriate as a ruler-setting means for use in processes that directly affect yield.

The present invention was developed in order to solve the above-mentioned conventional problems, and it is possible to transport the plate-shaped object at an arbitrary speed that does not affect the processing efficiency, and also to transport the plate-shaped object immediately before setting out the ruler. By adopting an extremely rational configuration in which the ruler is brought into contact with the regulating body after decelerating the speed, it is possible to improve the accuracy of ruler placement, including preventing the shape of the plate-like object from collapsing, and to prevent deterioration of processing efficiency. The purpose of this invention is to contribute to streamlining the process of forming rulers on plate-shaped objects.

The present invention will be described in detail below along with an example of implementation illustrated in the drawings.

FIG. 1 is an explanatory side view of a mechanism used to carry out the method according to the first aspect of the present invention, and FIG. 2 is a plan view thereof.

In the figure, reference numeral 2 denotes a conveyor that conveys plate-shaped objects at an arbitrary speed that does not impede processing efficiency, and includes a plurality of pulleys 5 fitted to a plurality of shafts 3 and 4 arranged in parallel at appropriate intervals. - At 6, a plurality of endless bands 7 are stretched and configured to rotate in the direction of the arrow shown in the figure at an arbitrary speed that is synchronized with the conveying speed of a veneer dryer or the like.

8 is the conveyor 2 to reduce the conveyance speed of the plate-shaped object.
The deceleration conveyor is an example of a transport body provided on the downstream side, and includes a plurality of pulleys 10 fitted to a shaft 4 on the downstream side of the transport conveyor 2 so as to be freely rotatable, and a plate-shaped object 1 from the shaft 4.
A plurality of endless strips 12 are attached to a plurality of pulleys 1J-11 fitted to shafts 9 provided in parallel at a distance longer than the length of the pulleys 1J-11.
It is constructed so that it can be rotated in the direction of the arrow shown in the figure at a speed slower than the arbitrary speed of the transport conveyor 2.

Reference numeral 13 denotes the deceleration conveyor 8 for regulating the tip of the plate-like object 1.
on the downstream side in the conveyance direction (this is the regulating body arranged).

According to the mechanism configured as described above, the plate-shaped object 1 is conveyed at an arbitrary speed by the conveyor 2 (as it is transferred to the upper deceleration conveyor 8, the conveyance speed is reduced by receiving frictional resistance from the deceleration conveyor 8). is gradually decelerated, and when the conveyance speed reaches the same speed as the conveyance speed of the deceleration conveyor 8, its tip is brought into contact with the regulating body 13 and the ruler is taken out. Of course, there is no risk of significantly deteriorating processing efficiency as in the case of conventional high-speed conveyance, and as is known, the energy associated with collision decreases in proportion to the square of the speed. The possibility that the shape of the plate-like object will be distorted or the object will bounce back is significantly reduced, and accurate ruler alignment can be performed.

Although not shown in the drawings, by disposing a detection body for detecting the completion of ruler ejection near the regulating body and releasing (temporarily removing) the regulation body based on the ruler ejection completion signal from the detection body, The plate-like object on which the ruler has been set can be subsequently supplied to other devices.

Furthermore, the conveyor described above can be used as an existing conveyor attached to another device, and the conveyor is not limited to a belt conveyor type conveyor as exemplified in the drawing, and the illustration is omitted. However, a roller conveyor type or chain conveyor type conveyor may be used, but in any case, if the conveyance distance is made somewhat longer than the length of the plate-like object,
This is preferable because the deceleration is stable.

Next, an apparatus according to a second aspect of the present invention has been developed to more effectively implement the method according to the first aspect.

That is, FIG. 3 is an explanatory side view of the device according to the second aspect of the present invention, and FIG. 4 is a plan view thereof.

In the figure, reference numeral 14 denotes an upper conveyance roller, which is an example of an upper conveyance body that conveys a plate-shaped object at a desired speed. Configure.

Reference numeral 1T denotes a lower conveyor, which is an example of a lower conveyor disposed opposite to the upper conveyor on the lower side to continue conveying the plate-shaped object, and a shaft 1 provided below the upper conveyor roller 14.
A plurality of pulleys 20 are fitted to the shaft 18 so as to be freely rotatable, and a plurality of pulleys 20 are freely rotatably fitted to the shaft 19 which is arranged parallel to the shaft 18 at a distance somewhat longer than the length of the plate-like object 1. A plurality of endless bands 22 are stretched around a plurality of pulleys 21, and the distance between the surface of the endless bands 22 on the pulley 20 and the surface of the roller 16 is set to be narrower than the thickness of the plate-like object 1. , and further between either one of the shaft 18 or the shaft 19, for example, between the shaft 19 and the pulley 21 fitted over the shaft 19I, =
A driving force transmitting member (not shown) such as a torque limiter that idles (slips) under a certain load is provided, and under normal conditions, the endless belt 22 is connected to the upper conveying roller 1 via the shaft 19.
It is configured to run in the direction of the arrow shown in the figure at a speed slower than the transport speed of No. 4.

23 is a lower conveyor 1 for regulating the tip of the plate-like object 1.
This is a regulating body placed near the end of 7.

The apparatus according to the second aspect of the present invention is configured as described above, for example, and uses an existing conveyor (not shown) to move the plate-shaped object 1 between the upper conveyor roller 14 and the lower conveyor 17. When inserted into the endless belt 2, which was normally running at a speed slower than the conveyance speed of the upper conveyance roller 14,
2 receives rotational force from the upper conveyance roller 14 via the plate-like object 1 as the plate-like object 1 is inserted, and the shaft 19 and the pulley 21
The plate-like object 1 is moved at a speed that follows the transport speed of the upper transport roller 14 while idling the drive transmission member disposed between the plate-shaped object 1 and the transport member 14. The plate-like object 1 is conveyed until it passes the upper conveyor roller 14. Then, when the plate-like object 1 passes the upper conveyor roller 14, the lower conveyor 17 returns to its normal state and rotates at a speed slower than the conveyance speed of the upper conveyor roller 14. As the plate-shaped object 1 moves, the conveyance speed is suddenly reduced by the frictional low drag force, and when the conveyance speed becomes the same as the conveyance speed of the lower conveyor 17, its tip abuts against the regulating body 23. Since the ruler can be taken out with the help of the ruler, the reliability of transportation during the process is further improved, and it is possible to carry out accurate ruler taking out. Since the conveyance speed of the object is reduced, there is almost no risk of deterioration of processing efficiency, and extremely efficient ruler setting processing can be performed.

In the above embodiment, even if the other shaft 18 of the lower conveyor 17 is used as a drive shaft and a driving force transmission member is disposed between the shaft 18 and the pulley 20, the bottom conveyor 17 is As long as it is within the drive train of However, in any case, the lower conveyor is not limited to a belt conveyor-type lower conveyor as illustrated in the drawings.
Although not shown, a roller conveyor type or chain conveyor type lower conveyor may also be used.

Next, the device according to the third aspect of the present invention has been further improved and developed to be able to reliably ruler out even a plate-like object that is extremely soft in the conveying direction without any trouble.

That is, FIG. 5 is an explanatory side view of the apparatus according to the third aspect of the present invention, and FIG. 6 is a plan view thereof.

In the figure, reference numeral 24 denotes a regulation conveyor that conveys the plate-shaped object at an appropriate speed, and the conveyor conveys a plurality of shafts 25 and 26 parallel to each other at a distance somewhat longer than the length of the plate-shaped object 1. A plurality of endless bands 2 are mounted on pulleys 27 and 28 that are rotatably fitted.
9 is stretched, and a driving force transmitting member such as a torque limiter (not shown) that idles under a constant load on one of the shafts 25 and 26, for example, between the shaft 26 and the pulley 28 fitted with the shaft 266. (omitted), and in the normal state, the endless belt 29 is configured to run at an appropriate speed in the direction of the arrow shown in the figure via the shaft 26.

Reference numeral 30 denotes a conveyance roller that conveys the plate-like object 1 at a given speed, and is configured to convey the surface of the endless belt 29 on the pulley 27 above the pulley 27 fitted on the shaft 25 on the upper side of the regulation conveyor 24. A plurality of belts are arranged so that the distance between them is narrower than the thickness of the plate-like object 1, and the belts are configured to rotate in the direction of the arrow shown in the figure at an arbitrary speed faster than the transport speed of the endless belt 29 via a shaft 31.

Reference numeral 32 denotes a plurality of presser rollers that press the tip of the plate-shaped object 1, and a plurality of arms 33 that can swing so as to be positioned above the pulley 28 fitted to the shaft 26 on the downstream side of the regulation conveyor 24. Each is pivotally attached to each, and each can be moved up and down and freely rotated.

Reference numeral 34 denotes a regulating body disposed near the presser roller 32 to regulate the tip of the plate-like object 1.

The device according to the third aspect of the present invention is configured as described above, and the plate-shaped object 1 is inserted between the regulation conveyor 24 and the conveyance roller 30 using an existing conveyor (not shown) or the like. Then, the endless belt 29, which was normally running at an appropriate speed, receives a rotational force from the conveying roller 30 via the plate-like object 1 as the plate-like object 1 is inserted, and the rotation between the shaft 26 and the pulley 28 is caused. Since the plate-shaped object 1 is made to travel at a speed that follows the conveyance speed of the conveyance roller 30 while idling the driving force transmission member disposed therebetween, the plate-like object 1 is moved at the same speed as the conveyance speed of the conveyance roller 30. When the plate-like object 1 is conveyed until it passes through the transport rollers 30, the regulating conveyor 24 returns to its normal state and rotates at its original speed, so that the plate-like object 1 is subjected to frictional resistance and its conveyance is stopped. The speed is suddenly reduced to the same speed as the conveyance speed of the regulating conveyor 24, and the tip of the ruler is brought into contact with the regulating body 34, and the ruler is taken out, so the ruler is extremely efficient and accurate. Not only can the feeding process be performed, but when the tip of the plate-like object 1 comes into contact with the regulating body 34, the endless belt 2, which was running at an appropriate speed,
9 receives resistance due to the pressure of the presser roller 23 and the regulation of the regulating body 34 via the plate-like object 1, and the shaft 26 and the pulley 28
Since the traveling is stopped while the driving force transmitting member disposed between the plate and the plate is idled, no part of the plate-like object 1 is transported by the endless belt 29 until the regulating body 34 is released.
Buckling will never occur in any part of the plate 1.

This effect is especially effective when the plate-like object is extremely soft in the direction of conveyance, such as when a veneer veneer is conveyed in a direction perpendicular to the fibers while being set to a ruler.

Of course, this device can perform ruler removal without any trouble even when a plate-like object is inserted obliquely to the conveyance direction.

That is, if a plate-shaped object is inserted diagonally with respect to the conveyance direction and is subsequently conveyed diagonally by the restriction conveyor so that only a part of the tip comes into contact with the restriction body first, the endless belt in that part will be as described above. However, the endless strip that supports other parts continues to run until it encounters similar resistance, so the other parts of the plate-shaped object are restricted by the part that first came into contact with the regulating body. The ruler is rotated until it touches the body, and the ruler can be set out as desired without any problems.

Note that the other shaft 25 in the above embodiment is used as a drive shaft,
A driving force transmitting member may be provided between the shaft 25 and the pulley 27, or an integral regulating body 34 may be provided.
For example, as shown in FIG.
By providing a plurality of divided regulating bodies 35 on both sides of 2, it becomes easier to turn the plate-like object when it is inserted obliquely, and damage to the tip of the plate-like object can be more reliably avoided. Therefore, it is effective.

As is clear from the foregoing, the present invention enables accurate ruler setting of plate-like objects efficiently, and the effects of implementing the present invention in the process of setting rulers of plate-like objects are extremely large.

[Brief explanation of the drawing]

The drawings are for explaining the present invention, and FIG. 1 is a side explanatory view of a mechanism used to carry out the method according to the first aspect of the present invention, and FIG. 2 is a plan view of FIG. 1. 3 is an explanatory side view of the device according to the second invention of the present invention, FIG. 4 is a plan view of FIG. 3, and FIG. 5 is an explanatory side view of the device according to the third invention of the present invention. , FIG. 6 is a plan view of FIG. 5, and FIG. 7 is a partial plan view for explaining another embodiment of the apparatus according to the third aspect of the present invention. 1...Plate-shaped object, 2...Transportation conveyor,
8... Deceleration conveyor, 13, 23, 34, 35
...regulator 14 ... upper conveyance roller,
17...Lower conveyor, 24...
Regulation conveyor, 30... Conveyance roller, 32...
...presser roller.

Claims (1)

[Claims] 1. By transferring a plate-shaped object such as a plywood veneer that is being transported at a given speed onto a transporting body configured to rotate at a speed slower than the arbitrary speed, After reducing the conveyance speed of the plate-like object using friction with the plate-like object, the tip of the plate-like object is brought into contact with a regulating body disposed on the downstream side of the conveyor in the conveying direction, and the plate-like object is A method for setting a ruler on a plate-like object such as a veneer veneer, which is characterized by drawing out a ruler on the object. 2 In order to convey a plate-like object such as a veneer veneer at an arbitrary speed, there is an upper conveyor that rotates at an arbitrary speed, and in order to continuously convey the plate-like object, there is an interval smaller than the thickness of the plate-like object. It consists of a lower conveyor disposed opposite to the lower side of the conveyor with a distance therebetween, and a regulating body disposed near the end of the lower conveyor in order to regulate the tip of the plate-shaped object, and the lower conveyor In this case, a transport distance is provided from the position 7'l) of the upper transport body to a distance slightly longer than the length of the plate-shaped object, and a driving force transmitting member such as a torque limiter that idles under a certain load is placed at an appropriate position in the drive train. and is configured to rotate at a speed slower than the conveyance speed of the upper conveyor under normal conditions, and at a speed that follows the conveyance speed of the upper conveyor when a plate-like object is involved. A device for taking out rulers for plate-like objects such as veneer veneers. 3 A plurality of pulleys are rotatably fitted to a plurality of shafts arranged parallel to each other at a distance somewhat longer than the length of the plate-like object, and a plurality of endless bands are stretched between each pulley. Furthermore, a driving force transmission member such as a torque limiter that idles under a constant load is provided between either one of the shafts and a pulley fitted to the shaft, and the endless band is moved at an appropriate speed via the shaft. A regulating conveyor configured to run, and a plurality of pulleys fitted to the upper shaft of the regulating conveyor, above the plurality of pulleys, spaced apart from the surface of the endless belt by a distance smaller than the thickness of the plate-like object. A plurality of conveyance rollers are arranged opposite each other and rotated at a speed faster than the running speed of the endless belt, and a plurality of pulleys fitted onto the shaft on the downstream side of the regulation conveyor are mounted above the plurality of pulleys, each of which moves up and down and rotates separately. A ruler-setting device for plate-shaped objects such as veneer veneers, which comprises a plurality of presser rollers that are freely rotatable and a regulating body that is placed near the presser rollers.