JPH0115453B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Field of Application> The disclosed technology belongs to the technical field of the structure of an apparatus for conveying and supplying veneers used in the manufacture of furniture and furnishings.

<Summary of the gist> The invention of this application takes out a veneer for furniture fittings etc. placed on a pallet that can be raised and lowered using a take-out pin device of a veneer take-out device, and uses a veneer positioning device. The veneer is carried out by the feed roll of the veneer positioning device, and its ends are positioned by the vertical and horizontal rulers of the positioning device, and the veneer is carried out to the next step in a set posture. The present invention relates to a veneer supply device, and in particular, an endless band is stretched over a sprocket supported by a frame of the veneer take-out device, and the take-out pin device can freely revolve around a support plate placed horizontally on the endless band. was made,
Furthermore, the frame is pivotally supported on the support frame of the veneer positioning device so as to be able to swing and separate, so that the pin device can freely press against the veneer on the pallet, and the feed roll is moved against the vertical veneer. - This invention relates to a veneer supply device that is oriented toward both horizontal rulers, and in which the vertical ruler is formed of an endless band wound around a pulley.

<Prior art> As is well known to those skilled in the art, veneer, which is generally used as a manufacturing material for furniture, furnishings, etc., is often used as a surface material, and its thickness is extremely thin. A veneer supply device is used to transport the veneers from the pallet to the mechanical device.

In other words, such a veneer supply device accurately takes out the veneers one by one upward from a pallet loaded with a plurality of veneers, transports them forward using rolls, and also transfers the veneers in the longitudinal and lateral directions. The apparatus is configured to transport the material to the next step in a predetermined manner while regulating each end edge of the material in a predetermined posture using a positioning ruler.

<Problems to be Solved by the Invention> However, the above-mentioned conventional veneer supply device that takes out veneers upward from a pallet presses the veneer from above with a predetermined pin, and then pulls up the pin. At the same time, air was supplied from the rear of the veneer falling from the pin to the underside of the veneer, and the veneer was supplied to the next positioning device using an air float conveyance method. Due to the feeding, a so-called waving phenomenon occurs in the veneer during transportation, and as a result, the veneer becomes wrinkled, which has the disadvantage of adversely affecting the next step and reducing product precision.

Furthermore, since the vertical ruler is kept stationary relative to the veneer being conveyed by the rolls, the edge of the veneer may come into sliding contact with the vertical ruler, and as a result, the edge may be damaged. There were some difficulties in accepting it.

Furthermore, the roll of the veneer supply device was tilted toward one end with respect to the horizontal plane to supply air to position the end of the veneer with respect to the vertical ruler, making the structure complicated. Operability deteriorated, and there were problems that were costly.

<Problems to be Solved by the Invention> The purpose of the invention of this application is to solve the problems of the above-mentioned prior art based on the above-mentioned prior art, and to provide a method for reliably removing veneers from pallets without using an air supply device. Use of veneer handling technology in the plywood manufacturing industry by picking up the veneer and transporting it, and further making it possible to accurately align the edges of the veneer using vertical and horizontal rulers without damaging the edges. The purpose is to provide an excellent veneer feeding device that will benefit the field.

<Means/effects for solving the problem> In order to solve the above-mentioned problem, the structure of the invention of this application, which is summarized in the above-mentioned claims, is such that the frame of the veneer take-out device swings at a predetermined period. The veneers loaded on the pallet that can be raised and lowered, which is placed close to the pallet and below the veneer take-out device, are attached to the pins of the pin device provided via the support plate on the endless band that goes around the sprocket of the frame. When the sprocket is rotated, the veneer whose proximal end has been pierced by the pin is conveyed to the unloading side by the front slide. During this time, the pin is moved by the rotation of the endless band. A vertical ruler having an endless band and a tiltable horizontal ruler supported by a feed roll obliquely installed in the feeding direction of the support frame of the veneer positioning device which is detached and connected to the veneer take-out device. While the veneer is being sent out in the direction, the vertical and horizontal ends of the veneer are positioned and put into the set posture. During this time, the endless band of the vertical ruler is rotating, so the length and width of the veneer are aligned with the vertical ruler. The veneers are positioned without damage, and the veneers are sequentially taken out and positioned, and then fed from the horizontal ruler to the next stage equipment.This cycle is repeated, and the veneers are delivered and conveyed without interfering with each other. This was achieved by taking technical measures to

<Example> Next, an example of the invention of this application will be described below based on the drawings.

In the embodiments shown in FIGS. 1, 2, and 4, 1 is a veneer supplying device, which forms the center of the invention of this application, and a base 2 has a large number of veneers 3, 3.
A cross-lifter type pallet 4 loaded with .

A frame 8 of a veneer take-out device 7 located above the pallet 4 is swingably supported by a pin 9 in the middle of a frame 6 serving as a support frame of the veneer positioning device 5. A rod 11 extending forward of an air cylinder 10 attached to the upper part of the frame 6 of the board positioning device 5 is attached to the upper part 1 side of the frame 8 of the veneer take-out device 7, and moves the veneer take-out device 7 in the vertical direction. It is made to swing freely at a predetermined period.

As shown in FIGS. 2 and 4, sprockets 12, 12... and chains 13, 13 as endless bands are stretched around the frame 8 of the veneer take-out device 7, and Drive sprocket 12'
As shown in FIG. 2, it is connected to a geared motor 14 attached to the frame 8 via a predetermined cam clutch 14' (not shown).

As shown in FIG. 4, between the chains 13, a predetermined number of support arms 15 having a U-shaped cross section are provided.
15... are installed horizontally and can freely revolve around the sprockets 12, 12... together with the chains 13, 13, and as shown in FIG. 1, each support arm 15 has a
An air cylinder 16 is disposed above, and a predetermined number of pin devices 17 for taking out veneers, which can freely protrude outward from the circumferential chain 13, are provided downward.

As shown in FIG. 3, in the pin device 17, a casing 18 is fixed to the support arm 15, and a plunger 2 is connected to the casing 18 via an elastic spring 19.
0 is inserted, and a bolt 21 is inserted into it from below in the figure, and the bolt 2
The plunger 20 is prevented from coming off from the casing 18 via the base 22 of the casing 18.

Further, a pin holder 25 having a plurality of pins 24, 24, . It is arranged so that it can face the upper surface of the stacked veneers 3.

As shown in FIG. 1, a rod 28 of the air cylinder 16 is attached to the pin device 17 via a support frame 27, and the rod 28 of the air cylinder 16 is attached to the base 22 of the bolt 21 of the pin device 17.
The pressure can be applied freely.

On the other hand, in the frame 6 of the veneer positioning device 5,
As shown in FIG. 2, three sets of rolls 30, 31, and 32 as feed rolls are placed at a position corresponding to the outlet 29 of the veneer take-out device 7, in pairs, upper and lower, as shown in FIG. As shown in FIG. 1, it is linked to a motor 36 attached to the frame 6 via a pulley 33 and belts 34, 35.

It is preferable that the interval between the upper and lower pairs of rolls 30, 31, 32 is about 1.5 times the thickness of the veneer 3, so that the veneer 3 can be moved freely by the rolls 30, 31, 32. ing.

Further, at the ends of the rolls 30, 31, 32 in the inclined direction, a vertical ruler belt 38 as an endless belt is attached to the vertical pulleys 37, 37 provided on the frame 6, as shown in FIG. The pulleys 37, 37 are stretched so as to be able to rotate freely with the width direction up and down, and as shown in FIG. ，
32 and rotates synchronously.

At the unloading end of the veneer positioning device 5, as shown in FIG. In front of the roller 41, a carry-out roll 47 is pivotally supported on the pulley 33 via belts 44, 45 and a pulley 46.

Above the carry-out roll 47, a pinch roller 48 which can come into contact with and separate from the carry-out roll 47,
48... is linked to the link 43 via arms 49 and 50
is linked to.

In addition, each air cylinder 16 and air cylinder 42,
The geared motor 14 and the motor 36 are respectively interlocked via a predetermined control device (not shown).

Note that 51 is a roll of the next stage device.

Then, the pinch roller 48 is raised and lowered, and the horizontal ruler 41
The ups and downs are linked.

In the above configuration, each pin device 17 is set, a start button (not shown) is pressed to raise the pallet 4 at a predetermined speed, and the chain 13 of the sprocket 12, 12'...
13, the air cylinder 10 swings and turns the frame 8, and first, the pins 24, 24 of the pin device 17 are pressed against the surface of the veneer 3 against the spring 19. Make sure that plate 3 does not shift.

Next, the air cylinder 16 is driven, and the base 22 of the bolt 21 of the pin device 17 is moved into the air cylinder 1.
When pressed by the rod 28 of 6, the veneer 3
is pierced by the pin 24, and then the air cylinder 10 is driven to swing the frame 8, and the rear part of the top veneer 3 is pulled up from the other veneers 3 below as shown in FIG. .

Then, the chain 1 is connected via the geared motor 14.
3 and 13 are rotated to a predetermined position, the veneer 3 is pierced by the pin 24 of the pin device 17 and is locked, so the front part of the veneer 3 is slid and inserted into the outlet 29.
From there, the veneer is transported to the veneer positioning device 5.

The above operations are performed fully automatically according to a program set by the control device (not shown).

During this time, when the pin device 17 approaches the lower sprocket 12 on the unloading side, the pin 24 will come out smoothly from the veneer 3, so the pin 24 will come out without causing any damage to the veneer 3. The pin device 17 begins to rotate upwards and the subsequent pin 2
4, 24, . . . are placed on the rear part of the next veneer 3, and the chain 13 is stopped by the cam clutch 14'.

In this way, each veneer 3 conveyed to the veneer positioning device 5 has its conveyance direction diagonally changed by the rolls 30, 31, and 32, and is pressed in the vertical direction while being pressed against the vertical ruler belt 38. They are transported while touching each other.

At this time, the vertical ruler belt 38 is connected to the roll 30,
31 and 32 are rotated synchronously by the motor 36, the longitudinal edge of the veneer 3 is brought into contact with the vertical ruler belt 38 without relative speed.
It is positioned on the rolls 30, 31, and 32 and is conveyed in a set posture.

The veneer 3 transported in this way is placed on the horizontal ruler 41.
At this point, horizontal positioning is performed as well as vertical positioning, and the sheet is stopped on the constantly rotating carry-out roll 47 while allowing relative slip with the roll.

When the air cylinder 42 is driven by an output signal from a control device (not shown), the horizontal ruler 41 is tilted in the unloading direction via the link 43, and the pinch roller 48 is moved to the unloading roller via the link 43, the lever 50, and the arm 49. 47 from above, the veneer 3 is pressed against the pinch roller 48.
The paper is held between the carry-out rollers 47 and transported to the rolls 51 of the next stage device with the vertical and horizontal edges positioned.

After the air cylinder 42 is restored via the control device, the air cylinder 10 and the gear motor 1
4. The air cylinder 16 is driven, and the subsequent pin device 17 of the veneer take-out device 7 positions the next veneer 3 at a predetermined conveyance interval so as not to interfere with the previous veneer 3. It is transported to the device 5, positioned as described above, and supplied to the next stage device.
From then on, this cycle is repeated.

It goes without saying that the embodiments of the invention of this application are not limited to the above-mentioned embodiments. For example, the air cylinder of the veneer positioning device may also be used as an air cylinder for swinging the frame of the veneer take-out device. The following aspects can be adopted.

<Effects of the Invention> As described above, the invention of this application has the excellent effect of basically being able to reliably take out the veneer from the pallet, easily transport it to the next stage, and position it in a short transport path. It is played.

In addition, an endless band is stretched over the sprocket supported by the frame of the veneer take-out device, and a take-out pin device is provided on the support arm installed horizontally on the endless band, so that the veneer can be taken out continuously. In addition, by rotating the pin device, the veneer can be conveyed smoothly and continuously without any deviation or wrinkles, and as a result, it is possible to further improve product accuracy. effect is produced.

Furthermore, since the frame of the veneer take-out device is swingably supported by the support frame of the veneer positioning device, initial positioning of the pin device with respect to the veneer can be performed, and the pins of the pin device can be easily positioned. It works reliably when piercing a board, and has the excellent effect of significantly reducing errors when taking out a veneer.

Furthermore, since the feeding direction of the feed roll of the veneer positioning device is oriented toward both the vertical ruler and the horizontal ruler, the feed roller is not only used as a conveyance device, but also serves as a kind of positioning device. This has the excellent effect of shortening the conveyance distance, shortening the positioning time, and increasing the positioning capacity of the veneer.

In a design in which the vertical ruler is an endless band wrapped around a pulley that rotates in synchronization with the feed roll, when the longitudinal edge of the veneer is being conveyed by the feed roll, there is no relative speed. Since it is possible to bring the veneer into contact with the veneer, an excellent effect can be achieved in which vertical positioning can be performed without damaging the edge of the veneer.

In addition, the time required to take out and position the veneer is shortened, and the equipment is also downsized, which increases processing capacity and utilization of installation space, and has the advantage of substantially reducing costs.

[Brief explanation of drawings]

The drawings show one embodiment of the invention of this application, and FIG. 1 is an overall schematic front view, FIG. 2 is an overall schematic plan view, FIG. 3 is a partially enlarged sectional view of the pin device, and FIG. 4 is a perspective view of the principle. 3... Veneer, 4... Pallet, 8... Frame, 17... Pin device for taking out the veneer, 7... Veneer taking out device, 30, 31, 32... Feeding roll, 38... Vertical ruler , 41... horizontal ruler, 5... veneer positioning device, 1... veneer supply device, 12,1
2'...Sprocket, 13...Endless band, 15...
...Support arm, 6...Support frame, 37...Pulley.

Claims (1)

[Claims] 1. A veneer take-out device supported by a frame and having a pin device for taking out the veneers is installed above a pallet loaded with veneers, and a feed roll is supported on the unloading side of the veneer take-out device. In addition, in a veneer supply device that is equipped with a veneer positioning device equipped with a vertical ruler and a horizontal ruler, an endless band is stretched on a sprocket supported by the frame of the veneer take-out device, and the endless band is A veneer supply characterized in that the horizontally installed support arm is provided with the take-out pin device, and the frame of the veneer take-out device is swingably supported on the support frame of the veneer positioning device. Device. 2. A veneer take-out device supported by a frame and having a pin device for taking out the veneers is installed above the pallet loaded with veneers, and a feed roll is supported on the unloading side of the veneer take-out device, and a vertical ruler and a horizontal In a veneer supply device that is equipped with a veneer positioning device equipped with a ruler, an endless band is stretched over a sprocket supported by the frame of the veneer take-out device, and a support arm is provided horizontally on the endless band. is provided with the take-out pin device, and the frame of the veneer take-out device is pivoted to the support frame of the veneer positioning device so as to be able to swing toward and away from the veneer positioning device, and the feeding direction of the feed roll of the veneer positioning device is set in the above-mentioned direction. A veneer feeding device characterized by being oriented toward both a vertical ruler and a horizontal ruler. 3. The veneer feeding device according to claim 2, wherein the vertical ruler is an endless band wound around a pulley that rotates in synchronization with the feed roll.