JPH074804B2 - Multi-plate circular saw machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a multi-plate circular saw machine capable of performing single-grinding, double-grinding, triple-grinding ...

(B) Conventional technology Conventionally, a circular saw that rotates at a fixed position on the same axis and a plurality of movable circular saws that move forward and backward are supported by separate shafts, and a ruler is provided outside the movable circular saws. A multi-disc circular saw machine provided with is already known from Japanese Patent Publication No. 52-3156.

(C) Problems to be solved by the invention The ruler attached to the known multi-disc circular saw is formed at a constant height from the feed side to the feed side of the circular saw, and is outside the movable circular saw. Since it was designed so that only one person can walk, each movable circular saw rotates in a fixed position when sawing a material narrower than the maximum number of saws determined by the number of circular saws. However, the movable circular saw that directly faces the ruler is the farthest position from the circular saw that is in a fixed position, and as a result, the movable circular saw is at the end and the position is indeterminate. You have to step a ruler against the circular saw, and its operation is cumbersome, and it takes one or two
・ When doing, the remaining material on the side opposite to the ruler was ground by another circular saw, and when the remaining material was sawn into another shape, there was a problem such as loss.

(D) Means for Solving the Problems In the present invention, a circular saw is attached to a main shaft that rotates at a fixed position, and another moving circular saw is attached to a cylindrical shaft that has the same axis as the main shaft and is slidable. , The moving circular saw side is provided with a ruler which is divided into a sending side and a sending side, and the ruler 22 is integrally connected so as to bypass the lower rotation locus of the moving circular saw, thereby increasing the maximum number of saws. When sawing a narrow material, a ruler passes through the front and back of a movable circular saw to allow a small number of saws to be freely sawed based on a circular saw that rotates at a fixed position, and the remaining material remains at a fixed position. The above-mentioned problem was solved by discharging the circular saw to the other side without sawing it.

(E) Action When sawing a wide material, a plurality of movable circular saws are sequentially stepped on the fixed position circular saw, and a ruler is stepped on the moving circular saw farthest from the fixed position circular saw. When the material is fed and sawed in this state, the same number of sawdust materials as the number of circular saws are obtained, and the remaining material is delivered from the other side of the fixed position circular saw. This residual material is appropriately sent back and sawed again to be made into a plate material or the like.

(F) Embodiment An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 is a saw machine, and a feeding device 3 having a plurality of declination rollers 2 ... Is provided with a feeding device 5 having a large number of forcibly driven rolls 4 ,. A large number of forcibly driven rolls 6, ..., 7 are provided on the side of the feeding device 5 and from the saw machine 1 side. ····· Returning devices 8 and 9 which are mounted on the shaft.

Further, the saw machine 1 horizontally swings with a table 10 provided with a plurality of declination rollers 10a, ... And a declination air cylinder 11a about a vertical axis 11 and moves up and down about a spindle 13 by an air cylinder 12. A plurality of circular rollers mounted on a pressing roller 17 which is driven by a motor 16 while being pivotally supported by a swinging frame 15 and a saw shaft 20 which is rotationally driven by the motor 16 via a chain or a V belt. It is composed of saws and a ruler 22 which is divided into front and rear parts of these circular saws and whose lower parts are integrally connected.

The saw shaft 20 is composed of a main shaft 20a driven by a motor via a V-pulley 23 and the like, and cylindrical shafts 20b and 20c which are successively fitted on the outer side of the main shaft 20a, and the end of the main shaft 20a is a casing 24. The pair of left and right sliding shafts 25, 25 supported by the support frame 26 is supported by bearings 27 at the hanging portion of a supporting frame 26 installed between the tip ends of a supporting plate 28, a seat plate and a nut 28a. 2
1a is screwed on, and circular saws 21b, 21c are screwed on the flanges 29, ... at the ends of the cylinder shafts 20b, 20c by means of rings and bolts, and the long spline 30 on the inner peripheral surface of the cylinder shaft 20b is The short spline 31 of the main shaft 20a is slidably engaged, and the long spline 32 of the inner peripheral surface of the outer cylindrical shaft 20c is slidably fitted to the short spline 33 of the outer peripheral of the inner cylindrical shaft 20b. Therefore, when the main shaft 20a is rotated, the other cylindrical shafts 20b and 20c also rotate.

Moreover, since the tip end side of the inner cylindrical shaft 20b does not have the spline 30, it is supported by sliding contact with the main shaft 20a, and the base side is supported on both sides by the sliding shafts 25, 25 through the bearings 34, 34. Bearings in the hanging part of the support frame 35 supported slidably
The outer cylindrical shaft 20c is supported via 36, and a portion having no spline on the base side is slidably contacted with the outer periphery of the cylindrical shaft 20b.
Both ends of the tip side are supported by a bearing 38 on a hanging portion of a support frame 37 slidably supported by bearings 34, 34.

Furthermore, the first stepping shaft 39, which is connected to the support frame 35 so that the tip portion does not move in the axial direction of rotation, has a threaded portion 39a.
Is beveled to the trapezoidal screw 40 of the casing 24, the bevel gear 41 spline-fitted in the middle is meshed with the bevel gear 43 driven by the drive shaft having the encoder 42, and the pin 44 fixed to the base side is the holding cylinder. It has a limit dog 47 loosely fitted in a long hole 46 of 45, and its moving range is limited by front and rear limit switches 48, 48, and the tip portion is connected to the support frame 37 so as not to move but rotate. The screw 52 of the second stepping shaft 50 is screwed into the screw hole 53 of the support frame 35, and the bevel gear 54 spline-fitted in the middle portion is a bevel gear 56 which is a shaft rotated by a drive shaft having an encoder 55. The pin fixed to the base of the holding cylinder 58a is projected outward from the long hole 58 of the holding cylinder 58a, and the limit dog 57 is screwed. The range of movement of the red dog 57 is limited by limit switches 59 and 60.

Therefore, when the bevel gear 41 is rotated to one side by operating the step setting device on the operation panel (not shown), the first step shaft 39 is rotated and the supporting frame is rotated.
Moves back and forth with 35, which causes the moving circular saw 21b to move to the fixed position circular saw 2
The distance from 1a is expanded / contracted, and then another moving circular saw 21
When the relationship between b and the cylinder shaft 20c is in the state shown in FIG. 4, when the cylinder shaft 20b is moved to the left side in the drawing,
The outer cylindrical shaft 20c is pushed by the bearing 38 and moves to the left, and the gap between the fixed position circular saw 21a and the moving circular saw 21b is set. Then, when the second stepping shaft 50 is rotated in the same manner as described above, the moving circular saw 21c is pushed out together with the cylindrical shaft 20c, and the stepping with the moving circular saw 21b is performed.

During such a step, the range of movement of the cylinder shafts 20b and 20c is limited by the limit switches 48, 48, 59, 60, so that collision does not occur.

In addition, the first step axis 39 and the second step axis 50 are expandable and contractible bellows.
It is covered by 61,61.

Furthermore, the above-mentioned 22 is divided into the front part and the rear part of the fixed position circular saw 21a and the movable circular saws 21b, 21c as seen from the axial center direction of the saw shaft 20 as described above, and follow the rotation loci of those circular saws. Arc-shaped part
A frame plate 62 having 62a is connected, and the frame plate 62 has a pair of racks 63, 63 at the front and rear, has a rotary encoder 64, and is rotated by a stepping motor 65. Since the pinions 67, 67 attached to the front and rear parts of the shaft 66 mesh with the racks 63, 63, when the stepping operation is set by the stepping operation tool on the operation panel, the stepping motor 65 causes the stepping motor 65 to move.
The 66 is rotated in either forward or reverse directions, whereby the ruler 22 laterally moves in parallel.

At that time, in FIG. 1, the width of the material to be sawn is of course one or two, as well as moving left and right on the upper side of the moving circular saw 21c, that is, on the left side when viewed from the feeding side. If it is narrow, when the ruler 22 is further moved to the fixed position circular saw 21a side, its arcuate portion 62a faces directly below the moving circular saw 21c on the most base side, a state facing between the moving circular saws 21b and 21c, or It is possible to walk to a position directly under the moving circular saw 21b,
Ruler 22 for cutting planks with ears on both sides to the desired width
Is retracted from the moving path of the material and the pressing roller 17
If you set the plate at a right angle and send it, if the width of the plate is wide,
The outer side of the movable circular saw 21c serves as a back plate, square timbers are obtained between the circular saws 21a, ...

In addition, when slicing a thick plate with one side ears, or if there is a certain width, step out between the ruler 22 and the moving circular saw 21c to the product width, and each circular saw 21a ... When the wood is sent after stepping on, it is sawn into 3 products and 1 remaining material, and when making a narrower board, for example, 2 products can be taken, the ruler should be placed at the base side. When the material is set at a position corresponding to the movable circular saw 21c, and the material for which only one can be taken, the ruler 22 is aligned with the movable circular saw 21b, one or two products and residual materials are obtained.

During such a stepping operation, the arcuate portion 62a is moved by the moving saws 21b, 21c.
While passing around under, the sawing ruler 22 surely guides the feeding side and the feeding side of the material, so that the pressing roller 17 and the declination roller 10 ... The ruler 22
Even if one or two pieces are ground while pressed against, the grinding road will not bend.

Next, the sorting device 68 will be described with reference to FIGS. 5 and 6. A plurality of conveying chains 70 ... Are stretched over a region extending from the sorting device 69 of the sending device 5 to the outside of the returning device 8.
On the product discharge side of 69, a partition plate 72 whose base is pivotally supported by a support shaft 71 on a support plate 75 is arranged at intervals.
The base of 72 is pivotally attached to an air cylinder 73 that is pivotally supported by a support plate 75 so as to be tiltable left and right, and the support plate 75 is attached to the lower surface on the tip side.
The piston 74a of the air cylinder 74 attached to the above is abutted, and the support plate 75 is fixed to a shaft 77 supported by a bearing cylinder 76 so as to be able to move up and down, and the shaft 77 is attached to an air cylinder 78 by a bell link 79 and a link. Connected via 80.

A plurality of stoppers 82 are pivotally supported by a support shaft 81 near the discharge portion of the returning device 8, and the stoppers 82 are undulated by an air cylinder 81a as shown by a solid line and a chain line.

In the above-described sorting device 68, the conveyor chain 70 is lowered from the rolls 4 and 6 by the chain lifters 83 and 83, and the ruler 22 is stepped to saw the material, and the product is sorted from the sorting zone 69 to the right side in FIG. It is delivered and the back plate or the remaining material is delivered to the left side.

Then, when the support plate 75 is pushed up by the air cylinder 78 to the position shown by the chain line, the product slides to the right and the transport chain
When the 70 is raised, the back plate or the remaining material is carried out to the left by the transport chain 70.

At that time, if the thing to be carried out is the back plate, a stopper
When 82 is laid down, the backboard is discharged outward as it is,
In the case of the remaining material, when the stopper 82 is raised and the conveying chain 70 is lowered, the remaining material is returned to the feeding side by the returning devices 8 and 9.

When the residual material is delivered to both sides of the sorting zone 69, the conveyor chain 70 is lowered to deliver the residual material, the stopper 82 is erected, and when the delivery is completed, the conveyor chain 70 is raised and the air is sent. The cylinder 74 raises the sorting plate 72 to a horizontal posture to put it in the deposit state, and the air cylinder 78 is operated to raise the sorting plate to the upper edge of the sorting belt 69 in a horizontal posture, where it is sorted by the air cylinder 73. When the plate 72 is pushed up, the remaining material on it moves to the left side over the sorting zone 69, is conveyed to the stopper 82 by the raised conveyance chain 70, and when the conveyance chain 70 is lowered, the return device 8, 9
Returned by.

Furthermore, when removing one ear of a material that has ears on both sides,
The pressing roller 17 is made orthogonal to the material feeding direction, the main portion of the material is positioned on the returning device 9 side from the fixed position circular saw 21a and sawed, and the fed main portion is fed back in the same manner as the above operation. , Fifth
In the drawing, the back plate on the right side is discharged to the side when it is transported by the transport chain 70 with the stopper 69 lying down while passing the sorting strip 69.

(G) Effect of the Invention According to the present invention, as described above, the circular saw 21a is mounted on the spindle 20a that rotates at a fixed position, and the other movable circular saws 21b, 21c ...
It is attached to a cylindrical shaft 20b, 20c, which has the same shaft center as a and is slidable, and the moving circular saws 21b, 21c side are provided with a ruler 22 divided into a sending side and a sending side. The moving circular saws 21b, 21c
Since it was integrally connected so as to bypass the lower rotation trajectory of,
Although it is possible to saw multiple products at the same time using multiple circular saws, if the width of the material is narrower than the width of the saw sled by the specified number of circular saws, the front and rear parts of the circular saw It is possible to move around some of the circular saws with the ruler located at the position integrated, and perform reliable sawing while guiding less than the specified number of products at the front and rear of the circular saw. it can.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a plan view of a saw machine, FIG. 2 is a side view showing the same as a partial cross section, FIG. 3 is a plan view showing the same, and FIG. FIG. 5 is a developed sectional view of the circular saw step attachment, FIG. 5 is a rear view of the sorting apparatus, and FIG. 6 is a plan view showing the whole. 17 …… Presser roller, 20 …… Saw shaft, 21a …… Fixed position circular saw, 2
1b, 21c …… Movable circular saw, 22 …… Ruler, 62a …… Arcuate part,

Claims (1)

[Claims] 1. A stationary circular saw 21a mounted on a spindle 20a which rotates at a fixed position.
, And attach the other moving circular saws 21b, 21c .. to the cylindrical shafts 20b, 20c ..
Ruler 2 divided into a sending side and a sending side on the moving circular saws 21b and 21c side
2. A multi-plate circular saw machine, characterized in that two are provided and the rulers 22 are integrally connected so as to bypass the lower rotation loci of the movable circular saws 21b, 21c.