JPS5941043Y2 - bark stripping machine - Google Patents

Description

[Detailed description of the invention] The present invention is a bark stripping machine that strips the bark of log trees using a rotating cutter. In particular, a cutter holder is attached to the tip of an arm that rotates up and down, and the rotating cutter is mounted on an axis. Conventionally, replacing the rotary cutter with a bark stripping machine required troublesome work such as removing the cutter holder from the arm, but with this invention, the rotary cutter can be easily replaced without removing the cutter holder. This allows the shaft to be securely mounted on the cutter holder.

That is, in the present invention, a cutter holder is provided with left and right brackets each having a bearing hole and a slit continuous thereto, and an inner mounting disk having a shaft through hole and a shaft are provided at both left and right ends of the cutter shaft of the rotary cutter. Fit the outer mounting disc with the through hole and the boss that fits into the slit, and the bearing with seven flange. This is characterized in that the cutter shaft is supported by the left and right brackets by setting them on the outer surface of the outer mounting disc and connecting these and the brackets with bolts.

The present invention will now be described in detail with reference to the illustrated embodiments.

This piling peeling machine has a frame A made of rice cake wood.
Then, install the required number of tires (six in this example) on the front side.
... and the same number of tires 2 on the rear side are mounted individually on the left and right, separated by a required interval, parallel to each other, and facing each other in a 1:1 relationship front and rear. A vertically movable frame B is vertically movably mounted between the left and right vertical rails 3, 3 vertically installed on the rear side of A, and on this vertically movable frame B,
A rough cutting barker C1 and a finishing barker C2 are installed side by side and individually.

Front tire... and rear tire 2...
... are individually mounted on the frame A in the same way, and the mounting structure of one front tire 1 will be explained with reference to FIGS. 3 to 7 as a representative.

An inclined base plate 6 is fixed to the intersection of the rear longitudinal member 4 and the cross member 5 constituting the frame A at a predetermined angle (for example, approximately 45 degrees) with respect to the horizontal plane.

A rotating body 7 is pivotally mounted on the upper surface of the inclined base plate 6 and rotates about an inclined axis that is perpendicular to the upper surface and forms an angle of approximately 45 degrees with respect to the horizontal plane. It is mounted on a shaft at the tip (upper end).

That is, the rotating body 7 includes a substantially semicircular rotating plate 9 that is rotatably supported on a shaft 8 on the upper surface of the inclined base plate 6, and a support 10 that is erected at an eccentric position of the rotating plate 9. It consists of a bearing base plate 11 fixed to the tip (upper end) of this support column 10, and a pair of bearings 12, 12 fixed on this bearing base plate 11, and the axle 13 of the tire 1 is supported by these bearings 12, 12. The center of the tire 1 is located on the extension line of the shaft 8.

The rotating plate 9 is prevented from separating from the upper surface of the inclined table plate 6 by a presser piece 14 14 fixed to the inclined table plate 6.

Therefore, if the rotating body 7 is rotated around the shaft 8, the tire 1
can be tilted to the left or right or to the right from the vertical position shown in FIG.

Therefore, the rotating body T that pivots the front tire 1 and the rotating body 7 that pivots the rear tire 2 have a relationship such that their axes form 90 degrees to each other (inclined in opposite directions). All the rotating bodies 7 on the front side have links 15 protruding from the respective bearing base plates 11 that are long in the left and right directions so that they can be rotated simultaneously in the same direction. The link 15 is connected to the front connecting rod 16 by a bottle joint, and all the rotating bodies 7 on the rear side are connected to the link 15 on the rear side so that they can be rotated in the same direction at the same time. It is also connected to the connecting rod 17 by a bottle joint.

The front and rear connecting rods 16 and 17 are connected to a common tire tilting actuator 20 via crank mechanisms 18 and 19, and the reciprocating movement of this actuator 20 causes them to move simultaneously but in opposite directions (when one moves to the left) The other side is moved in parallel (rightward movement).

As a result, the front tires and the rear tires 2 are all placed vertically as shown in Figure 1. The rear tires 2 can be tilted to the left and the rear tires 2 can be tilted to the right by reciprocating the actuator 20, and the tilt angle can be arbitrarily adjusted. It is possible.

In addition, the tires before and after the above..., 2...
Regarding the rotating body 7 of any one of the tires, the fourth
As shown in Figures 6 to 6, a switch operating piece 21 is provided protruding from the bearing base plate 11, and a pair of limit switches 22, 22 electrically connected to the actuator 20 are attached to the inclined base plate 6. When the rotary body 7 is rotated and the tire mounted on the axle is tilted to a predetermined angle, one limit switch 22 is activated by the switch operating piece 21 and the actuator 20 is automatically stopped, and the rotary body 7 in the opposite direction to the above to make the tire vertical, the other limit switch 22 is activated and the actuator 20 is automatically stopped.

Like this, the front and rear tires..., 2...
can be tilted in opposite directions to each other by driving a single tire tilting actuator 20, but they can also be tilted in opposite directions to each other by driving a single tire tilting actuator 20. This motor 23
They are rotated simultaneously by the drive of the

In other words, the axle 13 of the front diamond...
. . . and rear tires 2 . . . axle 13
・・・・・・The front and rear drive shafts are 2 respectively.
4... and is connected to the left-hand drive shaft 24 connected to the axle 13 of the left-hand tire 1 on the front side, and the axle 13 of the left-hand tire 1 on the rear side.
The left drive shaft 24 connected to the tire rotation motor 23 is connected to the tire rotation motor 23 via chains 25 and 25, respectively.

The drive shaft 24 is 5K, as shown in detail in FIG.
A male shaft 27 and a female shaft 28, both made of square pipes each having a universal joint 26. Universal joint 26 on both sides of .28,
Both shafts 27, 28 are covered with cover tubes 29, 30 which have a similar telescopic structure and are extendable and retractable, and the universal joints 26, 26 on both sides are made expandable and retractable. It is covered with a bellows-like expandable cover 31.31.

Note that this drive shaft 24 may be one in which both shafts 27 and 28 are fitted by so-called spline fitting.

Each drive shaft 24 has universal joints 26, 26 at both ends thereof connected to the axle 13 of the tire 1 or 2.
When the... is tilted as shown above (Fig. 7), each drive shaft 24, both shafts 27 and 28 are extended and both universal joints 26 and 26 are bent, and the tire... , 2...Even if the machine is tilted, the rotational force is transmitted smoothly and without any irregularities.

In this way, by driving the motor 23, all the front and rear tires..., 2... rotate at the same time at the same speed without uneven rotational speed, and the front and rear tires... ..., 2... Place these tires between them and rotate them in a tilted state as shown in Figure 1.
f = The log can be transferred to the right in the figure while rotating, and it is clear that the transfer speed can be adjusted by adjusting the inclination angle of the tire.

In addition, the front and rear tires..., 2......
It tilts to the left or right around the tilt axis (axis 8) that forms a predetermined angle (approximately 45 degrees) to the horizontal plane.
Even when these front and rear tires are tilted, the middle part of their width comes into contact with the outer circumferential surface of the log and applies a propulsive force toward the center line of the log, allowing the rotation of the tires to efficiently propel the log. It is something that can be done.

Next, while rotating in this manner, both barkers C1 and C for rough cutting and for finishing debark the transported log.
2 will be explained.

The only difference between the Barker C1s and C2 is that the Barker C1 has a rotary cutter 32 for rough cutting, and the Barker C2 has a rotating cutter 33 for finishing, which has a larger number of blades than the rotary cutter 32 for rough cutting. , the other configurations are substantially the same.

That is, as shown in detail in FIGS. 9 and 10, a longitudinally long arm 34 is supported on the vertically movable frame B by a shaft 35 so as to be vertically movable.

The arm 34 passes through the frame of the vertically movable frame B, and its front part 34 is located in front of the vertically movable frame B, and its rear part 34 is located in front of the vertically movable frame B.
□ is located at the rear.

Front and rear frames 36 and 37 are respectively erected on the front side portion 341 of the arm 34 and the vertically movable frame body B, and these frames 36.
A cylinder device 38 operated by compressed air is installed between the cylinders 37 and 37 .

This construction is accomplished by connecting the base end of the cylinder body 390 of the cylinder device 38 to the rear mount 37 using a bottle joint, and by connecting the tip of the piston rod 40 to the front mount 36 using the same bottle joint. When the piston rod 40 is extended, the front side portion 34 of the strike arm 34 rotates downward, and conversely, when the piston rod 40 contracts, the front side portion 341 rotates upward.

A bearing tube 41 is mounted on a shaft at the front end of the arm 34 so as to be movable up and down.

That is, as shown in detail in FIG. 12, the bearing tube 41 has an upright plate 42 fixed to its front end, and a shaft 44 fitted to a shaft stand 43 fixed to the rear surface of the upright plate 42. 44 is supported by a pair of bearings 45, 45 fixed to the front end of the arm 34, so that the bearing sleeve 41 is positioned below the front side portion 341 of the arm 34 and is supported thereon.

The upright plate 42 of this bearing cylinder 41 and the front side portion 34 of the arm 34
The coil spring 4 is placed between the spring support plate 46 erected on the spring 1
1 is stretched, thereby providing the bearing sleeve 41 with a so-called spring cushion.

This shaft e cylinder 41 has a cutter holder 4 on its front side.
B is supported so that it can swing.

That is, as shown in FIG. 12, the cutter holder 48 has a shaft 49 protruding from its rear face, and vertical plate-shaped brackets 50° 50 protruding from both left and right ends of the front face. 41 to prevent its removal, the cutter holder 48 is pivotably mounted on the front end of the arm 34 as shown in FIGS. The left and right balance is maintained by springs 51 (there are two left and right springs).

As shown in FIG. 12, the left and right brackets 50° 50 of the cutter holder 48 each have a circular bearing hole 51, a slit 52 continuous with the bearing hole on the outside, and a plurality of bolt through holes 53. The rotary cutter 32 for rough cutting or the rotary cutter 33 for finishing is provided with both left and right ends of a cutter shaft 55 penetrating through its rotary body 54 to these left and right brackets 50 and 50 as follows. The shaft is mounted on the cutter holder 48 by bearing the shaft.

That is, as shown in the figure, an inner mounting disk 56 having a shaft through hole 56 on each of the left and right sides of the cutter shaft 55;
Outer plate mounting disk 57 having shaft through hole 57' and boss 57, bearing 58 with flange, bearing cover 59, adapter 60°61.62, bearing mounting bolt 63... and cover mounting screw 64・・・・・・
. . , and as shown in FIG. ,
The outer mounting disc 57 is set on the outer surface of the bracket 50 by fitting its boss 57' into the slit 52, and the flat bearing 5B is set on the outer surface of the outer mounting disc 57. 57, bolt through holes 65..., 66... of the bracket 50.

53... (Figure 12) and bolt 63...
The cutter shaft 55 is screwed into the screw hole 61 of the disc 56 through the screw hole 61 of the disc 56, and the bearing cover 59 is screwed to the outer surface of the bearing 58. , a disk 57, a bearing 58, and a bearing cover 59.

Since the cutter shaft 55 is thus covered and supported by the disks 56, 57, the flange of the bearing 58, and the bearing cover 59, the peeled bark will not become tangled therewith.

In order to remove the rotating body 54 from the cutter holder 48, remove the bolts 63 and then remove the cutter shaft 55 from the left and right slits while keeping the various parts mentioned above fitted to it. 52. Simply pull it forward through 52, and the rotary barrel 54 and therefore the rotary cutter 32 or 33
The main feature of the present invention lies in the fact that the rotary cutter has the above-mentioned shaft structure.

A sprocket wheel 68 is fitted onto the cutter shaft 55, and is linked via a chain 69 to a cutter rotation motor 70 on the rear side 34° of the arm 34, as shown in FIG.

Both the rough cutting and finishing cutters C15C2 have such a structure, but they are designed to fit the frame A in a predetermined position as shown in Fig. 1.3. Reflection phototube mounted in position 71.7
1 and are controlled separately.

That is, the phototubes 71 and 71 emit light forward in order to individually detect the logs being transported by the tires..., 2..., as described above. is Barker Cl-C2 cylinder device 38.38
Barker C
When the phototube 71 corresponding to No. 1 detects a log cut, the piston rod 40 of the cylinder device 38 of the barker C1 is extended, and the front side portion 34 of the arm 34 is rotated downward as described above. The cutter 32 hits the upper side of the log, and then the barker C2
When the corresponding phototube T1 detects a log, the piston rod 40 of the cylinder device 38 of the barker C2 is extended so that the finishing cutter 33 hits the log.

On the other hand, the log is transported to a point beyond the irradiation position of the phototube 71, 71, or it is exhausted...
2... If the barker C15C2 falls out of the irradiation position due to accidental falling, the piston rod 40 of the cylinder device 38 in each of the barkers C15C2 contracts and the front side part 34 of the arm 34 rotates upward. Moving and rotating cutter 3
2.33 is retracted upward.

As shown in FIG. 13, each phototube 71 has a nozzle 72 attached to its tip and a cyclone ring 73 disposed within this nozzle 72.

Air is fed into the nozzle 72 through an air pipe 74, and the phototube 71
By irradiating light while blowing out air from 2, the light beam will not be blocked by peeled off skin pieces, dust, etc.

The vertically movable frame B on which both barkers C1*C2 are mounted is suspended by chains 75 and 75 as shown in FIGS. 1 to 3, and is connected to a motor 76 via these chains.
The motor T6 is driven to move up and down along the left and right vertical rails 3.3.

When the log is rotated and transferred as described above and detected by the phototube 71 corresponding to the barker C1,
The rotary cutter 32 for rough cutting automatically descends as described above and hits the log, and then when it is detected by the phototube 71 corresponding to the barker C, the finishing cutter 33 automatically lowers and hits the log. After the bark of the log is roughly peeled off with a rough cutting rotary cutter 32, the remaining small pieces of bark can be evenly peeled off with a finishing rotary cutter 33.

In summary, the present invention provides a cutter holder with left and right brackets each having a bearing hole and a slit continuous thereto, and an inner mounting disk having a shaft through hole at each of the left and right ends of the cutter shaft of the rotary cutter. Fit the flanged bearing to an outer mounting disk having a shaft through hole and a boss that fits into the slit, and place the inner mounting disk toward the inside of the bracket, the outer mounting disk toward the outer surface of the bracket, and the bearing with the flange. The cutter shaft is supported by the left and right brackets by setting them on the outer surface of the outer mounting disc and connecting these and the brackets with bolts, which allows the rotary cutter to be securely mounted on the cutter holder and also can be easily replaced.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention.6 Figure 1 is a front view;
Figure 2 is a plan view, Figure 3 is a right side view, Figures 4 to 6 show the tire mounting configuration, Figure 4 is a side view, and Figure 5 is a 45-degree angle to the upper right of Figure 4. Figure 6 is also a view seen from an angle of 45 degrees in the upper left, Figure 7 is a partial plan view showing the tilted state of the tire, Figure 8 is an enlarged perspective view with a portion of the drive shaft cut away, Figures 9 and 10 The figures are an enlarged side view and an enlarged plan view of the barker, Figs. 11 and 12 are an enlarged cross-sectional view and an exploded perspective view showing the shaft structure of the rotary cutter, and Fig. 13 is a partially cutaway side view of the phototube. 34... Arm, 48... Cutter holder, 32° 33... Rotating cutter, 51...
...Bearing hole, 52...Slit, 50...
... Bracket, 55 ... Cutter shaft, 56.5
6' ...Inner mounting disk and its shaft through hole, 5
7.57', 57"...Outside mounting disc, its shaft through hole and boss, 58...Bearing, 63.
·····bolt.

Claims (1)

[Scope of utility model registration request] A cutter bolter is attached to the tip of the arm that rotates up and down.
In a bark stripping machine that has a rotary cutter attached to it,
The cutter holder is provided with left and right brackets each having a bearing hole and a slit continuous with the bearing hole, and an inner mounting disk having a shaft through hole, an inner mounting disk having a shaft through hole and the shaft through hole are provided at both left and right ends of the cutter shaft of the rotary cutter, respectively. The outer mounting disc having a boss that fits into the slit and the flanged bearing are fitted, and the inner mounting disc is placed on the inner surface of the bracket, the outer mounting disc is placed on the outer surface of the bracket, and the bearing is placed on the outer mounting disc. A bark stripper characterized in that the cutter shaft is supported by the left and right brackets by setting them on the outer surface and connecting these and the brackets with bolts.