JPS6033644B2 - Veneer veneer processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a veneer veneer (hereinafter referred to as a veneer) cut into predetermined lengths.

) is related to a veneer processing device that stacks and transports veneer sheets. Prior Art Conventionally, in a veneer processing device that overlaps veneers cut into predetermined lengths, the mutual position of the veneers to be overlapped,
In addition, the configuration is such that overlay control is performed by accurately detecting the shape using each detector, etc., and the veneers that are overlaid have a characteristic that the shape becomes extremely uneven due to cracks, curls, etc. Because of this, it had the disadvantage that the veneers could not be reliably stacked on top of each other.

The above disadvantages require diversification of the means for detecting the shape of a single plate, and
Although this problem can be solved by advanced superimposition control, the device itself has the disadvantage of increasing cost due to the complicated configuration.

In order to solve the above-mentioned drawbacks, the present applicant has previously developed a "veneer high-speed stacking device (Japanese Patent Application No. 54-168842)",
``We proposed and applied for a veneer stacking device (submitted on May 8, 1972), but in the above device, the distance difference between the lengths of the first and second conveyance paths is constant. Since the structure is such that the cut veneers are arranged so that the cut veneers are overlapped with each other, it has a drawback that it cannot respond to changes in the predetermined length.

Purpose The present invention relates to an improvement of the above-mentioned "high-speed veneer stacking device" and "veneer stacking device", which uses a simple configuration to vary the conveying process length in response to changes in the predetermined length of cut veneers, It is an object of the present invention to provide a veneer processing device that can overlap cut veneers in an appropriate state.

Example Hereinafter, the present invention will be explained according to examples.

FIG. 11 is a schematic side view showing the outline of the veneer processing apparatus according to the present invention. A cutting discrimination device 3 is connected at a rear position of the cutting discrimination device 3 to cut the veneer to a set predetermined length 1, to form a cut veneer Sa, and to discriminate the cut veneer Sa alternately upward and downward. First and second conveyors 7 and 8 serve as first and second conveyance paths, respectively, which are synchronously driven by the driving member 4 and convey the cut veneer Sa that has been separately carried in from the starting end 5 to the terminal end 6. and a guide belt 9, which is disposed behind the first conveyor 7 and holds the cut veneer Sa between the conveyor belt 7a and the conveyor belt 7a.

The cutting discrimination device 3 integrally has a function of simultaneously distributing the cut veneers S and distributing the cut veneers Sa vertically and alternately, and its structure is based on the Japanese Patent Publication No. 2003-120003, which was previously filed by the present applicant. Since it is described in detail in Japanese Patent No. 54-35358, its explanation will be omitted.

The first and second transport conveyors 7 and 8 are arranged so that their starting ends 5 and terminating ends 6 are located at the same location, and the conveyor belt 7a of the first transport conveyor 7 is arranged on the starting end 5 side. A turning roll 1 which is arranged at a position above and in front of the starting end roll 10 and the ending end 6 and is rotationally driven by the drive section 4.
1. The guide belt 9 is stretched over the first retainer rolls 12 disposed corresponding to the six terminal ends and the tension roll 13 as a process length changing member, and the guide belt 9 is disposed above the turning roll 11. a fixed roll 14, the first tiner roll 12, and a turning roller disposed at a position in front of the tiner roll 12;

The tension roll 15 and the second tie roll 16 are tensioned, and the tension roll 13 and the first and second tie rolls are tensioned. The wheels 12 and 16 are synchronously spread by the actuating member 17 for a distance of 12, and the conveying process length 13 of the first conveyor 7 is the same as that of the second conveyor.
The conveyance process length 14 of the conveyor 8 is varied so as to have a distance difference that is an odd number multiple of the predetermined length 1. Next, this embodiment operates as follows.

First, when a desired predetermined length 1 is selected by the changeover switch 18, the control circuit 19 sends the movement signal MS to the actuating member 17.
The tension roll 13 and the first and second tiner rolls 12 and 16 are moved to the position shown by the solid line in FIG. The six terminal ends are displaced so as to have a distance difference of twice as much.

The control circuit 19 calculates the length of the veneer S in response to the detection signal SS from the detector 20, and sends a drive signal DS to the rotating member 21 every time the counted value reaches the selected predetermined length 1. , and rotates the cutting blade 2 in one direction to cut the veneer S to form a cut veneer 6a having a predetermined length 1, and drives the drive signal DS2 in response to the detection signal SS. The signal is output to the member 4, and the first and second conveyors 7 and 8 are driven synchronously. In addition, in order to prevent errors from occurring in the predetermined length 1 of each cut veneer Sa that is separately conveyed to both transport conveyors 7 and 8, a counter for correcting the counted value is provided in the control circuit 19, and the main loader is The occurrence of the above-mentioned error can be prevented by a configuration in which the cut veneer is straightened or a counter is provided to count the predetermined length of each cut veneer that is carried in separately above and below. In the above state, after the cut veneer Sa, which has been carried in by the cutting discrimination device 3, is conveyed by the first conveyor 7, the cut veneer Sa2, which has been carried in by discrimination, is conveyed by the second conveyor 8. The cut veneer Sa is sandwiched between the conveyor belt 7a and the guide belt 9, and is conveyed in a detour with a distance difference that is an odd multiple of a predetermined length 1, compared to the conveyance process length 14 of the second conveyor belt 8. , the cut veneers Sa, , Sa2 are superimposed on each other at the terminal end 6.

Next, when the predetermined length is changed from L to 1,' by the changeover switch 18, the control circuit 19 sends a movement signal MS2 to the actuator village 17.
output, tension roll 1 3, 1st, and 2nd
The rollers 12 and 16 are moved a distance of 12 and positioned as shown by the broken line in the figure.

Along with the above movement, the terminal end is displaced from 6 to 6', and the conveyance process length is changed from 13 to 13' and 14 to 14' so that there is a distance difference between the two that is an odd multiple of the changed predetermined length 1,'. are respectively displaced. In the above condition, cut veneer Sa,,S
A2 is carried in alternately and transferred to the first and second conveyors 7, 8.
When conveyed, the cut veneer Sa, is conveyed in a detour while being held between the conveyor belt 7a and the guide belt 9, and is superimposed on the cut veneer Sa2 at the terminal end 6' in the same manner as described above.

Therefore, in this embodiment, in response to a change in the predetermined length 1, it is possible to form a distance difference between both conveying process lengths that is an odd number multiple of the predetermined length selected as appropriate, and the cut veneer is cut at the terminal position. They can be stacked on top of each other, and the conveyance process length 13 can be varied without changing the tension of the conveyor belt 7a.

In this embodiment, the cut veneer panels Sa are overlapped with each other with their edges in the conveyance direction aligned, but the present invention is capable of changing the conveyance process length of at least one of the conveyance paths in response to a change in the predetermined length. The length of the conveyance process is changed to have a distance difference between an odd number multiple of the selected predetermined length and an appropriate distance that can be used to distinguish the overlapped cut veneers from each other, and the cut veneers are shifted appropriately from each other. The present invention may also be implemented with a configuration in which the stacked cut veneers are clearly distinguished from each other and the work of taking out the cut veneers is accelerated in, for example, the assembly process, drying process, etc. Further, the present invention formally includes a cutting device and a discrimination device, and after the cutting device cuts the veneer into predetermined lengths, the discrimination device cuts the cut veneer into first and second pieces. It is also possible to carry out a configuration in which the materials are transported separately to the conveyance path.

Further, in this embodiment, the actuating member 17 was used to vary the length of the conveyance process, but the present invention has a structure in which the tension roll and the tiner roll are manually screwed into preset positions each time the length is changed. Even if there is, it can be implemented.

FIG. 2 shows an example of application of the present invention, in which the veneer S cut by the veneer lace 22 is removed by the cutting discrimination device 23 at the front and rear ends of narrow-width veneers ordered at the early stage of cutting and at the later stage. After parts are removed as appropriate and made into a sized veneer,
The narrow-width veneers S are carried into the cutting/discriminating device 24 of the present invention, with the veneers being closely spaced from each other.

The cutting discrimination device 24 cuts the continuous narrow-width veneer S or the continuous veneer S each time it reaches a predetermined length 1, and also cuts the cut veneer Sa when at least one of the above-mentioned veneers Sa changes in the predetermined length. The cut veneers Sa are transported into the first and second transport paths 24 and 26 whose lengths are varied to correspond to the corresponding transport process lengths, and the cut veneers Sa are superimposed on each other at the six terminal positions, and the one-piece cut veneer Sa is transferred to a stacker. 27, and if necessary, the narrow-width cut veneer Sa is carried out to the stacker 28 and stacked. Note that the cutting discrimination device 23 is not activated for the continuous veneer S to be cut in the middle stage of cutting, and after being cut into predetermined lengths by another cutting discrimination device 24, the first and second veneers are cut. The materials are transported separately to transport paths 25 and 26.

Effects As explained above, the present invention has first and second conveyance paths having the same starting and ending ends, and is arranged at a position before the starting end, and cuts a veneer veneer into predetermined lengths. and a cutting discrimination device that forms cut veneer veneers and carries the cut veneer veneers alternately into the two conveyance paths, and a predetermined length of the cut veneer veneers is added to the conveyance process length of both the conveyance paths. In a veneer veneer processing device in which the cut veneer veneers are stacked on top of each other at the ends of both conveyance paths with a distance difference of approximately an odd number times, in the middle of either of the two conveyance paths, With a configuration equipped with a process length changing member that moves in response to changes in the predetermined length of the cut veneer veneer and changes the conveyance process length to an arbitrary length, the predetermined length can be changed with a simple configuration without changing the conveyance path. This is a veneer processing device that can change the conveyance process length in response to changes in the number of sheets, and overlap cut veneers on top of each other.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view showing an outline of a veneer processing apparatus according to the present invention, and Fig. 2 is an explanatory diagram showing an application example of the present invention, in which 1 is a veneer processing apparatus, 3 is a cutting discrimination device, 4 is the starting end, 5
is a terminal end, 7 is a conveyor as a first conveyance path, 8 is a conveyor as a second conveyance path, 1 is a predetermined length, 1
3 and 14 are conveyance process lengths. Figure 1 Figure 2

Claims (1)

[Claims] 1 The first and second parts having the same starting and ending ends
is disposed at a position in front of the transport path and the starting end, cuts the veneer veneer into predetermined lengths to form cut veneer veneers, and carries the cut veneer veneers alternately and separately into both the transport paths. and a cutting discrimination device, and a distance difference of approximately an odd number multiple of a predetermined length of the cut veneer veneer is provided in the conveyance process length of both the conveyance paths, and the cut veneer veneers are overlapped at the ends of both conveyance paths. In the veneer veneer processing apparatus, the conveyance path is moved in response to a change in the predetermined length of the cut veneer veneer in the middle of one of the two conveyance paths, and the length of the conveyance process is changed to an arbitrary length. A veneer veneer processing apparatus characterized by comprising a process length changing member for changing the process length.