JP2500398Y2 - Double sizer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double sizer used for processing wood such as building materials and furniture.

[0002]

2. Description of the Related Art A double sizer is often used for so-called sizing for cutting width, length and the like of wood into set dimensions in mass processing of wood such as building materials and furniture. In the double sizer, a plurality of cutter columns equipped with rotary cutters or circular saws are arranged in combination so as to simultaneously cut the left and right edge surfaces of the workpiece, so-called workpiece wood, or both edge surfaces. These cutter columns are arranged on the frame so that their positions can be adjusted, and the plate material and the square material of the work placed on the frame are fed at a predetermined speed to perform the cutting processing of the width and the length and the side surface forming processing. The position of the cutter column is usually adjusted by fixing one cutter column of the combination and slidingly fitting the moving pedestal part of the other cutter column to the guide rail provided in the movement path on the frame side. , Sliding it. The moving mechanism is often composed of a square screw spindle arranged between the cutter column and the guide rail and a bush with a female screw that is screwed into the square screw spindle, and the moving mechanism is operated by manual rotation or motor-driven rotation.

[0003]

However, the conventional double sizer described above has a drawback in that the position of the cutter column cannot be adjusted lightly and takes a long time. In other words, the cutter column requires high rigidity in order to carry out cutting smoothly with high precision.
Since it has a large thickness, it has a considerable weight, and in sliding with the guide rail, the static friction resistance is considerably large, and it is difficult to move smoothly. Further, in the position adjustment using the square screw spindle, it often takes time and time for precise positioning due to the existence of backlash. Furthermore, because the position adjustment range of the cutter column is large, it is common to arrange a number of limit switches along the guide rails and determine the stop position in combination with the select switch. Is likely to get out of place, which lowers the positioning accuracy. An object of the present invention is to provide a double sizer in which the position of a cutter column can be adjusted lightly, reliably, and highly accurately.

[0004]

A double sizer according to the present invention is a double sizer in which a cutter column having a pedestal portion that engages with a guide rail on a frame side and slides and moves laterally is arranged, and is parallel to the guide rail. And a roller support type linear motion mechanism unit interposed between the frame side and the cutter column side, a cutter column moving mechanism driven by an air motor disposed between the frame side and the cutter column side, and the cutter column. The cutter column positioning stop mechanism is configured by combining a plurality of sets of slits arranged on the frame side on the moving path and stopper pieces to be inserted into the slits.

[0005]

The guide rail of the frame and the pedestal portion on the cutter column side that engages with and slides on the guide rail of the frame are mutually supported by the roller support type linear motion mechanism unit interposed between the frame side and the cutter column side. The sliding surface opens slightly and the two are in rolling contact with each other, and the frictional resistance is significantly reduced. And the cutter column moving mechanism by the air motor drive provided between the frame side and the cutter column side is
Since the drive source is an air motor, unless the air pressure is released, it is possible to stop while maintaining the torque in the drive rotation direction, that is, under the load condition, and maintain the condition without backlash. In addition, the combination of the slit arranged on the frame side on the cutter column moving path and the stopper piece inserted into this can change the position over a plurality of slit arrangement ranges, and the cutter column can be attached to the stopper piece at that position. It is received and the positioning stops.

[0006]

1 is a perspective explanatory view showing an embodiment of the double sizer of the present invention, FIG. 2 is a vertical sectional view of the double sizer of FIG. 1 as seen from the direction of arrow XX, and FIG. 3 is a view of the double sizer of FIG. It is a longitudinal cross-sectional view seen from the YY line arrow direction. In the figure, 1 is a double sizer, 2 is a frame, 3 is a guide rail, 4
Reference numerals a and 4b are cutter columns, 41 is a pedestal portion of the cutter column 4b, and 5a and 5b are roller support type linear motion mechanism units arranged below the cutter column 4b. 6 is a cutter column moving mechanism, 61 is an air motor constituting the cutter column moving mechanism 6, 62 is a pinion gear, 63
Is also a rack. Reference numeral 7 is a cutter column positioning stop mechanism, 71 is a slit constituting the cutter column positioning mechanism 7, 72 is a stopper piece, 8a and 8b are caterpillar chains for feeding the work of the double sizer 1, 9
Similarly, a and 9b are pressing endless belts.

As shown in FIG. 1, in the double sizer 1 of this embodiment, the guide rails 3 are arranged across the width direction of the frame 2 and the cutter columns 4a and 4b are also provided at this position. It is fixed to the side of the frame 2 and the pedestal portion 41 of the cutter column 4b is slidably mounted on the guide rail 3. Then, in parallel with the guide rails 3, to the left and right of the guide rail 3, the frame 2 side and the cutter column 4 are provided.
Roller support type linear motion mechanism unit 5 between b side
a and 5b are interposed. As shown in FIG. 2, the roller support type linear motion mechanism units 5a and 5b are composed of a linear rail 51 and a roller support element 52, and are commercially available under the trade name such as LM guide. The frame 2 is arranged near the upper part of the frame 2 with the machining steel 53, and the latter is arranged on the side surface of the cutter column 4b with the bracket 54. In this case, the heights of the roller support type linear motion mechanism units 5a and 5b are set so that the sliding surface between the guide rail 3 and the pedestal portion 41 has a very small gap, that is, the pedestal portion 41 is slightly floated. Adjust and intervene.

A cutter column moving mechanism 6 is arranged between the frame 2 side and the cutter column 4b side. The cutter column moving mechanism 6 includes an air motor 61, a pinion gear 62,
It comprises a rack 63 and a manual air valve 64. An air motor 61 having a pinion gear 62 mounted on a shaft is attached to the cutter column 4b side, and a rack 63 is attached to the frame 2 side in parallel with the guide rail 3. The manual air valve 64 for operating the air motor is attached to the lower side of the cutter column 4b. Further, a cutter column positioning stop mechanism 7 is arranged between the frame 2 side and the cutter column 4b side. The cutter column positioning stop mechanism 7 has a plurality of vertical slits 71 arranged along the entire length of the guide rail 3.
It is composed of a stopper piece 72 that is inserted into the slit 71 by changing its position. Cutter column 4b of stopper piece 72
The contact member 73 provided with the adjusting screw provided so as to project from the cutter column 4b side hits the surface facing toward, and the cutter column 4b is stopped at that position and positioned.

More specifically, as shown in FIG. 3, along the guide rail 3, a grooved steel is attached to the central portion of the guide rail 3 with the opening direction facing upward, and a vertically oriented slit 7 having a width of 9 mm is attached thereto.
1 is provided at a pitch of 100 mm, and a steel plate piece having a thickness of 9 mm is prepared as a stopper piece 72 for the slit 71. Then, the stopper piece 72 is inserted from above into the slit 71 where the contact member 73 corresponding to the set stop position of the cutter column 4b hits. Next, when the cutter column moving mechanism 6 is driven, the cutter column 4b moves in a direction approaching the cutter column 4a, and stops when the contact member 73 hits the stopper piece 72. Caterpillar chains 8a for feeding the work are provided on the opposite side surfaces of the cutter columns 4a, 4b.
8b and the pressing endless belts 9a and 9b above it are arranged. The caterpillar chains 8a and 8b are configured such that their work feeding surfaces are exposed on the upper surface of the frame 2, and the endless belts 9a and 9b press the work corresponding to the height of the work, so that the arrangement height can be adjusted. Have.

In the double sizer 1 of the present embodiment constructed as described above, the cutter column 4b is auxiliary supported on the frame 2 side by the roller support type linear motion mechanism units 5a and 5b, and the guide rail 3 is supported. The sliding surface of the pedestal portion 41 of the cutter column 4b is slightly raised. As a result, the two are not in sliding contact but in rolling contact, and the frictional resistance, particularly static frictional resistance, is markedly reduced, and it is possible to move very lightly. The lifting height is extremely small, and the straightness of the cutter column 4b is substantially controlled by the guide rails 3, and the roller support type linear motion mechanism unit 5 is used.
The burden on a and 5b is small. Further, the cutter column moving mechanism 6 can be remarkably downsized because the movement of the cutter column 4b is very light. In addition, the air motor 61
Can be held with the torque corresponding to the air pressure as long as the air pressure is not removed, there is no backlash, and even if this state is continued, trouble such as heat generation does not occur. In other words, it is not necessary to consider measures against backlash when using the square screw spindle, precautions for operation, etc., and an extremely simple structure is sufficient. Further, since the cutter column positioning stopping mechanism 7 is mainly composed of the slit 71 and the stopper piece 72, there is no positional deviation, it is easy to maintain high accuracy with good reproducibility, and quick and reliable setup change can be performed.

The double sizer of the present invention can be modified in various ways other than the above embodiment. For example, two sets of pinion gears and racks of the cutter column moving mechanism are arranged on the left and right of the guide rail on the frame side, these pinion gears are mounted on a common shaft, and when this common shaft is driven by an air motor,
In some cases, the cutter column can be moved more smoothly. or,
It is also possible to form the slit and the stopper piece of the positioning stop mechanism of the cutter column in a wedge shape to eliminate rattling between them and further improve the positioning accuracy.

[0012]

According to the double sizer of the present invention, movement and position adjustment of the cutter column can be carried out easily and with high accuracy, and setup change can be carried out quickly and reliably.

[Brief description of drawings]

FIG. 1 is a perspective view of a double sizer showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the double sizer of FIG. 1 seen from the direction of arrow XX.

FIG. 3 is a vertical cross-sectional view of the double sizer of FIG. 2 as seen from the direction of arrows along the line YY.

[Explanation of symbols]

 1 Double sizer 2 Frame 3 Guide rail 4a, 4b Cutter column 5a, 5b Roller support type linear motion mechanism unit 6 Cutter column moving mechanism 7 Cutter column positioning stop mechanism 41 Pedestal part 61 Air motor 71 Slit 72 Stopper piece

Claims (1)

(57) [Scope of utility model registration request] 1. A double sizer in which a cutter column having a pedestal part that slides and moves laterally is engaged with a guide rail on the frame side, and is parallel to the guide rail. A roller support type linear movement mechanism unit interposed between the two, a cutter column moving mechanism driven by an air motor arranged between the frame side and the cutter column side, and a frame side on the cutter column moving path. A double sizer comprising a plurality of slits and a cutter column positioning stop mechanism in which stopper pieces to be inserted into the slits are combined.