JPH0723201Y2 - Local sawmill equipment - Google Patents

Description

[Detailed Description of Device] a. Purpose of the Invention (Industrial Application Field) The present invention is an on-site sawmill device. More specifically, the present invention relates to a lumbering machine that can be easily transported to and installed at a logging site, a logging site, or the like, and can automatically and accurately take each plan and plank by evenly grinding two sides.

(Prior Art) Conventionally, a transfer chain provided with a material pushing protrusion is disposed between a pair of guide rails whose distance can be adjusted, and a pair of guide rails that are moved forward and backward by separate stepping mechanisms are provided on both sides of the guide rail. Japanese Unexamined Patent Publication No. 49-68395 discloses a circular saw saw machine that is provided with a base and supports a pair of circular saws on these bases to automatically grind two sides of a material.
In the portable saw machine, which is publicly known from Japanese Patent Laid-Open Publication No. JP-A No. 2003-242242, supports a wheel so that the machine can move up and down, and the machine is grounded and stabilized when the wheel is pulled up, and when the machine is pulled down, the machine can travel away from the ground. A portable saw machine, in which a ruler and one circular saw are attached to a machine body and which is driven by an engine mounted on the machine body to grind wood, is known from Japanese Utility Model Publication No. 32-16093.

(Problems to be solved by the invention) However, since the guide rail of the circular saw saw machine is integrally formed with the machine body, the total length thereof is 12 m or more, and the logging site is a normal track or cableway. It is impossible to transport and install it on-site such as a yard or a gathering place, and since the material is placed on two parallel guide rails and the rear end is pushed by the pushing convex member to feed the material, it is straight. Since a straight log is guided with a part of its peripheral surface sandwiched between guide rails, a pair of circular saws perform straight dihedral grinding. However, if the double-sided drum material is rotated 90 degrees, the surface of the material is on the guide rail, so that the material is not guided straight, and the drum material is ground while tilting or meandering. It is not possible to obtain straight square timber, and it is not possible to stabilize bent logs with two guide rails for feeding, so it is not possible to grind bent logs. Since the mechanism is connected, the walking amount of the pair of circular saws is not uniform, so when plate cutting from both sides prior to chamfering from the drum material,
It cannot be put to practical use due to the problem that the two plates do not have the same thickness.

Next, the portable saw board can be transported and installed to a logging site, a logging site, etc. by an ordinary truck or cableway, but the end side of the material is pulled by a manual winch and the source side is pulled by hand. Since the material is sent by pushing, it cannot be sawed unless there are two workers. Also, since the material is sawed side by side with one circular saw, four steps are required for chamfering from logs. As a result, the sawing cost is high, and since thin logs cannot be bent into a product by single-sided grinding, this portable saw machine can not automatically process logs at a low cost into a product with high commercial value. It cannot be done.

The present invention has been made in view of this situation, and by separating the front and rear parts of the feeding guide to the site such as a logging site or a logging site, the portable machine can be easily transported and installed, and by grasping both ends at the site. By straightly feeding the material and double-grinding with a pair of circular saws that are evenly spaced from the center of the material, even thin logs and curved logs can be processed into products with high commercial value at low cost and end materials. It is an issue to provide a device that enables efficient lumbering by carrying out only this product by placing or milled flour locally.

B. Configuration of the Invention (Means for Solving the Problems) The on-site sawing machine according to the present invention has a feeding guide that can be attached to and detached from an intermediate joint in the front and rear of the main frame, and a supporting leg at the end. By extending it to form a portable machine body, the material feeding guide of the portable machine body holds both ends of the material by a pair of gripping tools, and supports the material feeding member advanced and retracted by the advancing and retracting means, A pair of saw guides that are orthogonal to the material feeding member are provided on both sides, and a pair of saw bases in which circular saws whose saw shafts are orthogonal to the material feeding guide are arranged are supported on the saw guides. A problem is solved by a structure in which an interlocking stepping mechanism for moving each of them forward and backward symmetrically with respect to a material center is linked to a table, and an engine for driving the material feeding member and the circular saw is mounted on the main frame. Is.

(Operation) When the front and rear parts of the material feeding guide according to the present invention are separated from the joints, the material feeding guide separated from the machine is used on a local site such as a logging site or a gathering site by an ordinary truck or cableway. If the lumbering guide is transported to the site and connected to the front and rear parts of the feeding guide by a joint, and is horizontally leveled by the supporting legs to stabilize it, the local installation of the sawmill can be done easily and quickly.

Therefore, by operating the engine mounted on the machine, it is possible to perform automatic sawing by driving the circular saw or the advancing / retreating means of the feeding material, even at sites where power cannot be obtained, such as logging areas and logging areas. become able to.

Next, when the log is held at both ends by a pair of gripping tools supported by the material-feeding member and is advanced by the advancing / retreating means, the material-feeding guide guides the material-feeding member in a straight line, so that the log can be straight or curved. As it is transferred straight, it passes between a pair of circular saws, and both sides are ground at the same time. Therefore, if only one side is ground off, thin logs that bend like a bow are also processed into straight drum material.

If such raw wood is processed into drum material, the drum material is returned to its original position by retreating the material-feeding member, and then removed from the gripping tool.
When it is rotated 90 degrees and the feeding tool is advanced again by grasping both ends with the grasping tool, the drum material is also linearly moved by the linear guidance of the feeding material by the feeding guide and passes between the pair of circular saws to form two surfaces. By sawing, it is processed into square timber with high linear accuracy.

In the case of chamfering as described above, when chamfering from both sides of the product square timber, the interlocking stepping mechanism linked to the pair of saw bases is always symmetrical about the material center with the pair of saw bases. Since the pair of circular saws are moved and moved evenly, the plate thicknesses that can be taken from both sides are exactly the same.

(Example) Below, the Example of the on-site sawmill device concerning this invention is described based on drawing.

FIG. 1 is an overall side view showing an embodiment of a sawing machine according to the present invention. FIG. 2 is a side view showing the main part of the above, that is, the circular saw, its stepping means, and a part of the material feeding member are omitted. FIG. 3 is an enlarged sectional view taken along the line AA in FIG. FIG. 4 is an enlarged sectional view of a part of FIG. 3 showing the relationship between the groove of the material feeding guide and the fixed nut of the circular saw in the above. FIG. 5 is an enlarged sectional view showing the relationship between the material feeding guide and the material feeding member in the above. FIG. 6 is an enlarged rear view showing the centering member of the material in the above.

1 and 2 in the drawings, reference numeral 1 is a main frame of a portable machine body A, which is a rectangular frame and extends a feeding guide 2 as shown in FIG. The material feeding guide 2 is provided with a detachable joint 3 in the middle part, and when the front part and the rear part of the material feeding guide 2 are separated from this joint 3, the main frame 1 is moved to the crane. It can be loaded on a 4 ton truck with

Reference numerals 4 denote supporting legs attached to the lower portions of the front and rear portions of the material feeding guide 2, respectively. The lower ends of the supporting legs are grounded to stably hold the material feeding guide 2 in a horizontal state. An adjusting screw 5 is incorporated in the middle, and the height of the support leg 4 is adjusted by adjusting the screw 5, so that horizontal installation can be easily performed even on uneven terrain.

Reference numeral 6 denotes a stay that connects an intermediate portion provided with a joint 3 at the front part and the rear part of the material feeding guide 2 and a lower part on the front side and the rear side of the main frame 1, and horizontally holds the material feeding guide 2 together with the supporting leg 4. It acts to stabilize it while it is held.

In FIG. 4, FIG. 5 and FIG. 6, 7 is a running groove provided in the material feeding guide 2, and a plate-shaped material feeding member 9 having a length slightly longer than the raw wood 8 is engaged in the running groove 7. And a pair of circular saws 36, 3 to be described later are provided on both sides of the material feeding member 9, respectively.
As shown in FIG. 4, there is provided a recess 10 into which the 6 fixing nuts 35, 35 are inserted, and the upper edge of the recess 10 is attached to the load receiving roller 11 axially attached to the material feeding guide 2 as shown in FIG. Support
The upper part of the recess 10 is sandwiched by the steadying rollers 12 from both sides so that the material feeding member 9 can smoothly and smoothly perform forward / backward movement with high linear accuracy.

In FIG. 1, 13 and 14 are a pair of gripping tools for gripping the raw wood 8 on both ends of the material feeding member 9, one gripping tool 13 is fixed to the rear side of the material feeding member 9, and the other gripping tool 14 is Material sending member 9
A cylinder 16 for advancing and retreating is movably supported by a supporting member 15 provided on the front side of, and the cylinder 16 is advanced and retracted to grip and release the log 8.

In FIG. 1 and FIG. 2, 17 is a chain for advancing and retracting the material feeding member 9, both ends of which are fixed to stop members 18 provided on the lower side of the material feeding member 9 and the middle thereof will be described later. In the lower part of the front side of the circular saw, the chain wheel 20 is attached to the main frame 1 on the shaft 19 so as to obtain a winding angle of more than half a circumference by a pair of idlers 21, and the chain wheel 20 is rotated in the reverse direction by a driving means described later. When rotated, the chain 17 moves forward or backward to move the material feeding member 9 forward or backward.

In FIG. 2, B is a chain for moving the feeding member 9 forward and backward.
A friction wheel 22 that rotates integrally with the chain wheel 20 by the driving means 17
And a pair of transmission wheels 24 and 25, which are supported in the front and rear of a rocking bearing base 23 arranged below the rocking bearing base 23 and selectively move toward and away from the friction wheel 22 when the rocking bearing base 23 is rocked. , One transmission car
A drive wheel 29 for transmitting rotation speed to the other transmission wheel 24 to the other transmission wheel 24 by changing the rotation direction by the reverse rotation gears 27 and 28, one end of the rocking bearing stand 23 and a rod 30 to the other transmission wheel 24. When the driving lever 31 is operated to bring the transmission wheel 24 into contact with the friction wheel 22, the chain 17 rotates in the traveling direction and the feeding member 9 feeds at a feeding speed. When the driving lever 31 is operated so that the transmission wheel 25 comes into contact with the friction wheel 22, the chain 17 rotates in the backward direction at a high speed to quickly return the material feeding member 9.

In FIG. 3, reference numerals 32 and 32 denote a pair of saw guides which are arranged in the portion where the material feeding guide 2 of the main frame 1 is interrupted so as to be orthogonal to the material feeding guide 2. The saw guides 32 and 32 have a saw base 3 respectively.
3 and 33 are supported so that they can move back and forth.
4,34 are supported, and circular saws 36,36 are attached to the inner end side by fixing nuts 35,35.When the corresponding intervals of these circular saws 36,36 are reduced, the fixing nuts 35,35 are the same as described above. It is adapted to be received in the recesses 10 provided on both sides of the sheet feeding guide 9 so that a small saw gap can be set.

In FIG. 3, C and C are interlocking stepping mechanisms for adjusting the corresponding intervals of the pair of circular saws 36, 36, and a stepping shaft 37 provided on both outer sides of the main frame 1 so as to be parallel to the material feeding guide 2. , 37, hook-shaped levers 38, 38 that are attached to these stepping shafts 37, 37, and rods that connect these hook-shaped levers 38, 38 and the saw stand 33, 33.
39, 39, an equal length link 40, 40 projecting in the opposite direction from the stepping shafts 37, 37, and a rod 41 connecting both, and a stepping lever fixed to one of the stepping shafts 37. When 42 is rotated, since the other launch shaft 37 is also rotated in the same angle and opposite direction by the action of the isometric links 40, 40 and the rod 41, the pair of saw blades 33, 33 and the hook-shaped levers 38, 38 are rotated. It is moved symmetrically with respect to the center of the log 8 by the rods 39, 39, and a pair of circular saws 36, 3
The steps of 6 are always performed uniformly with respect to the center of the material 8.

In FIG. 3, reference numeral 43 designates a fan-shaped step board corresponding to the step lever 42, the mounting portion 44 of which is loosely fitted to one of the step shafts 37 described above, and the board surface is adapted to the planned product size. By arranging a number of pin holes 45 with different distances from the reference point in an arc shape and inserting the stepping pins 46 supported by the stepping lever 42 into these pin holes 45, the standard stepping is performed. While making it possible to arbitrarily select the dimensions, a set screw 48 is screwed into the pinching portion 47 of the step board 43 attached to the step lever 42, and by tightening this set screw 48, other than the pin hole 45 described above. The stepping lever 42 is fixed to the position so that the stepping dimension outside the standard can be freely set.

In FIG. 2, reference numeral 49 is a relief lever for the circular saws 36, 36, the base portion of which is attached to the main frame 1 by a shaft 50, and the pivot shaft 51 of the driving lever 31 is supported at the tip end thereof, and the middle portion of FIG. When the feeding member 9 is stopped or moved forward, the lever 52 extended from the mounting portion 44 of the step board 43 is connected by a rod 53 shown by a dotted line in FIG. Escape lever 49
Is held in place by the restraining piece 54, so a pair of circular saws
36,36 keeps the set interval, but the material feeding member 9
When retracting the
Since 49 is moved up and the saw stands 33, 33 are retracted by the stepping mechanism C, C, the circular saws 36, 36 are opened so that their intervals do not hit the grinding surface.

In FIG. 6, 55 and 55 are a pair of centering members provided on both sides of the front portion of the material feeding member guide 2, and the inside of the material feeding guide 2 is attached to both sides of the material feeding guide 2 by shafts 56 and 56. When it is extended to both sides, and the outer ends of each are pushed up by the operation means described later and raised as shown by the solid line in FIG. 6, the centering members 55, 55 sandwich the raw wood 8 from both sides and feed the center of it. When the centering of the member 9 is performed and the outer end is pulled down and tilted as shown by the chain line in FIG. 6, the raw wood 8 is received. Notches 57 and 57 are provided so as not to interfere with the horizontal portion 2a of the material feeding guide 2.

In FIG. 6, reference numerals 58 and 58 denote a pair of levers for interlocking the centering members 55 and 55, which are extended in the opposite direction from a shaft 59 provided on the lower side of the material feeding member 2 so as to extend the respective tips and the core. Outgoing member 55,5
The tip of 5 is connected by rods 60, 60, a transmission lever 61 is fixed to the shaft 59, and the transmission lever 61 and a rod 64 of a cylinder 63 supported by a projecting piece 62 of the material feeding guide 2 are connected. When the cylinders 63 are connected to each other and the cylinder 63 is operated, the centering members 55, 55 are opened and closed in an interlocking manner.

In Fig. 1, reference numeral 65 is an air blower for discharging the ground powder generated by the ground material, and its suction part is connected to the ground powder receiver 66 provided on the lower side of the circular saws 36, 36 so that the discharge part is long and flexible. By connecting a flexible hose 67 and moving the tip side of the hose 67 to change the discharge position of the ground powder, the ground powder can be dispersed and accumulated in a wide range.

In FIGS. 1 and 2, 68 is an engine mounted on the main frame 1, and as shown in FIG.
Belt 71 from the intermediate shaft 70 to the saw shafts 34, 34.
By means of the belt 72, the material sending member 9 is fed to the exhaust fan 65.
Belt 73,74,75 to driving means B of chain 13
Thus, the rotation is transmitted to each of the compressors 76 for supplying the compressed air to the cylinders 16 and 63 by the belt 77, so that the sawing can be performed even in the field where the power cannot be obtained.

The on-site sawmill device shown in the above-mentioned embodiment is used in the feeding guide 2
When the front part and the rear part of the are separated from the joints 3,3, they are carried to a site such as a logging site or a logging site by a 4-ton truck equipped with a crane or a cableway together with the material feeding member 2 that has separated from the main frame 1, and saw the sawdust at the site. Move it down to an easy place and join the front and rear parts of the material feeding guide 2.
If they are connected by 3, 3 and the supporting legs 4, 4 bring out and stabilize the material feeding guide 2 horizontally, the lumbering equipment can be installed on site in less than 2 hours.

Then, after the installation, the engine 68 is operated to drive and place the circular saws 36, 36 and the operating means B of the material feeding member 9, and the grippers 13, 14 are placed.
The raw wood 8 is gripped at both ends by the means to move the material feeding member 9 forward and backward.
When the wood 8 is advanced by 13, the straight wood, the bent wood, and the drum material ground on the two sides are surely transferred straight and passed between the pair of circular saws 36, 36. Chamfering or planing by double-sided grinding with a high straightness is automatically performed, and at the time of planing, a pair of circular saws are always stepped evenly with respect to the material center by interlocking stepping. There is no unevenness in the thickness of the plate obtained from both sides, and
The ability of sawn timber was excellent as it was possible to cut about 130 chamfers in 6 hours for a log of 10 to 20 cm in diameter.

C. Effects of the Invention As described above, the local sawmill device of the present invention separates the front and back of the feeding guide and transports it to the site of the felling site or the collecting place by ordinary trucks or cableways, and the front part of the feeding guide at the site. By connecting the rear part and the rear part and supporting it on the supporting leg, it can be easily installed, and the circular saw and feeding material are driven by the engine to automatically grind, and the generated mill ends and mill powder are placed on site. As a fertilizer for subsequent planting, only the product is carried out, so compared to the conventional method of carrying out raw wood, it is 1/2 for large diameter trees and 3 for small diameter trees.
The transportation cost can be reduced to / 4 and the product cost reduction effect is very large.

Since the material is gripped and transferred from both ends by the gripping member,
Even bent logs can be accurately transferred in a straight line for lumbering, and even a drum material in which two sides of raw wood have been ground down can be linearly transported by grasping both ends for accurate chamfering.

Since a pair of circular saws is used as the center of the material-feeding member, that is, a stepping means that advances and retreats evenly with respect to the center of the material, the raw wood is always ground in the same manner on both sides so that the product does not warp even in small-diameter wood, If the boards are cut from both sides prior to chamfering, the plate thickness will be exactly the same.

[Brief description of drawings]

FIG. 1 is an overall side view showing an embodiment of an on-site sawmill device according to the present invention. FIG. 2 is a side view showing the main part of the above, that is, the circular saw, its stepping means, and a part of the material feeding member are omitted. FIG. 3 is an enlarged sectional view taken along the line AA in FIG. FIG. 4 is an enlarged sectional view of a part of FIG. 3 showing the relationship between the groove of the material feeding guide and the fixed nut of the circular saw in the above. FIG. 5 is an enlarged sectional view showing the relationship between the material feeding guide and the material feeding member in the above. FIG. 6 is an enlarged rear view showing the centering member of the material in the above. A: Transportable machine 1 ... Main frame 2 ... Feeding guide 3 ... Joint 4 ... Supporting foot 9 ... Feeding member 13,14 ... Grasping tool 32,32 ... Saw guide 33, 33 ... Saw stand 36,36 …… Circular saw C, C …… Interlocking stepping mechanism 68 …… Engine

Claims (1)

[Scope of utility model registration request] 1. A portable machine body is constructed by extending and detaching a tip from an intermediate joint on the front and rear sides of a main frame, and extending a material feeding guide having a supporting leg at an end thereof. The material guide holds both ends of the material with a pair of gripping tools to support the material feeding member advanced and retracted by the advancing and retracting means, and a pair of saw guides orthogonal to the material feeding member are provided on both sides of the main frame. hand,
These saw guides support a pair of saw stands in which a circular saw whose saw axis is orthogonal to the material feed guide is arranged inside, and both saw stands are linked with a motion stepping mechanism that moves each of them back and forth symmetrically with respect to the material center. Then, an on-site sawmill device, wherein an engine for driving the material feeding member and the circular saw is mounted on the main frame.