JPH0625303Y2 - Surface treatment equipment for round bars for log houses - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a surface treatment apparatus for a round bar used in a log house constructed by stacking cylindrical logs.

[Prior art]

A round bar for a log house needs to be subjected to a surface treatment such as polishing the surface after processing a raw wood into a cylindrical shape. For example, polishing the surface of a round bar requires polishing the entire surface while transporting the round bar. In a conventional apparatus that achieves this, both ends or both sides of a round bar are sandwiched and transferred, and an abrasive is rotated along the surface of the round bar to polish the front side of the round bar. Further, an apparatus has been developed in which a round bar is fixed and an abrasive is moved while rotating the round bar to polish the front surface of the round bar.

[Problems to be solved by the device]

However, in these surface treatment devices, all round bars are
There was a drawback that it was difficult to finish it neatly and uniformly. The reason is that the polishing state cannot be easily adjusted according to the thickness and material of the wood. The round bar for the log house is
Since natural wood is used, the surface condition after processing into a cylindrical shape with a blade is significantly different. For example, in the case of wood processed into a columnar shape, the surface state changes significantly depending on the state of branches, in other words, the state of knots on the surface, the state of wood grain, the hardness, and the cutting quality of blades. In addition, since the conventional round bar surface treatment apparatus transfers the round bar without rotating it, it is difficult to inspect whether or not the entire surface of the round bar is neatly cylindrically processed. The reason is that a long and heavy round bar cannot be easily rotated once. Since a round bar for a log house usually has a total length of 4 to 6 m and a maximum thickness of 300 mmφ, it is extremely heavy and cannot be easily rotated. Since the round bar is made by processing wood into a cylindrical shape, it is possible that unevenness is partially formed, and the surface condition cannot be inspected unless the entire surface is observed. If the round bar is not thoroughly inspected and the surface treatment after cylindrical processing is not sufficient, a log house with a beautiful appearance cannot be constructed. Also, the burr-like deposits that partially project on the surface of the round bar are
It prevents the rods from stacking without gaps and causes rain leaks. Therefore, the surface treatment device for the round bar used for the log house, according to the surface state of the round bar processed into a column,
It is important to be able to adjust the surface treatment condition. The round bar can be polished while being transferred by two transfer rollers arranged close to each other. This device has a feature that the transfer roller can be rotated in a horizontal plane to adjust the transfer speed relative to the rotation speed of the round bar. That is, the round bar 1
The transfer amount for rotation can be adjusted. However, this device has a drawback that a mechanism for rotating a plurality of transfer rollers that rotate in a horizontal plane becomes complicated. This device was developed with the purpose of solving this drawback, and the important purpose of this device is to make a round bar for a log house beautifully finished and with a simple drive mechanism. It is an object of the present invention to provide a surface treatment device that can transfer a round bar while rotating it.

[Means for solving the problem]

The surface treatment device for a round bar for a log house of the present invention has the following configuration. (A) The surface treatment device for the round bar A rotates the frame 1, the transfer roller 2, the rotary table 3 for mounting the transfer roller 2 on the frame 1, the rotating means of the rotary table 3, and the transfer roller 2. The driving means and the surface treatment means 4 for the round bar A are provided. (B) There are three or more transfer rollers 2, which are arranged in two rows in the frame 1. (C) The transfer rollers 2 in each row are arranged at positions in contact with the surface of the round bar A to be transferred. (D) The distance d between the outer peripheries of the transfer rollers 2 arranged in two rows is adjusted to be smaller than the diameter D of the round bar A to be transferred. (E) The turntable 3 supports the transfer rollers 2 arranged in two rows on the frame 1 so as to be rotatable in a horizontal plane. (F) The rotary table 3 supports the transfer rollers 2 on the frame 1 with the rotary shafts 5 parallel to each other. (G) The rotating means is connected to each of the rotary bases 3, and rotates the rotary bases 3 together in a direction inclined with respect to the transfer direction of the round bar A in the horizontal plane. (H) The driving means of the transfer roller 2 is connected to the plurality of transfer rollers 2 and rotationally drives the transfer roller 2. (I) The surface treatment means 4 for the round bar A is arranged in the transfer passage for the round bar A. (J) The driving means is connected to the rotary drive shaft 14 arranged in the frame 1 in an extension of the round bar transport method, the motor 13 for rotating the rotary drive shaft 14, and the rotary shaft 5 of the transport roller 2. Pulley 15, rotary drive shaft 14 and pulley 1
5 and a belt 16 hung around the motor 5, the motor 13 rotates the rotary drive shaft 14, and the rotary drive shaft 14 rotates the belt 1.
Rotate the pulley 15 of the transfer roller 2 via 6,
The pulley 15 is configured to rotate the transfer roller 2.

[Action]

The surface treatment apparatus for a round bar for a log house according to the present invention performs the surface treatment while transferring the round bar A as described below. The operation will be described with reference to FIGS. 1 and 2. The transfer roller 2 arranged in two rows rotates with the round bar A placed thereon. The round bar A rotated by the transfer roller 2 is transferred while being rotated. This is because the rotating shaft 5 of the transfer roller 2 is inclined with respect to the transfer direction of the round bar A as shown in FIG. The transfer distance of the round bar A with respect to the rotation speed is the transfer roller 2
It can be adjusted by the angle of the rotation axis. Now, temporarily, the transfer roller 2
If the rotation axis 5 of the round bar A is parallel to the transfer direction of the round bar A, the round bar A
Is not transferred when rotated. However, the transfer roller 2
The more the rotary shaft 5 rotates in the direction indicated by the arrow A in FIG. 1, the greater the transfer distance with respect to the rotation speed of the round bar A,
In other words, the transfer speed of the round bar A can be increased.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. However, the embodiments shown below exemplify a device for embodying the technical idea of the present invention, and the device of the present invention has the following materials, shapes, structures, and arrangements of components. Not specific. The device of this invention is subject to various modifications within the scope of the claims for utility model registration. Further, in this specification, in order to facilitate understanding of the scope of claims for utility model registration, the numbers corresponding to the members shown in the embodiment are
It is added to the members shown in "Column for request for utility model registration", "Column for means for solving conventional problems", and "Column for action and effect". However, the members shown in the scope of claims for utility model registration are by no means limited to the members of the embodiment. The surface treatment apparatus for a round bar for a log house shown in FIGS. 1 to 3 includes a frame 1 extending in the transfer direction of the round bar A,
A transfer roller 2 for transferring while rotating the round bar A, a rotary table 3 for rotatably mounting the transfer roller 2 on the frame 1 in the horizontal plane, a rotating means for rotating the rotary tables 3 together, and a circular table. And a drive means for rotating the transfer roller 2 to transfer the rod A. However, FIG. 3 shows a state in which the rotary shaft 5 of the transfer roller is parallel to the round bar A. In the actual use state, if the rotary shaft 5 is parallel to the round rod A, the round rod A is not transferred, and therefore the rod is used with a slight inclination. The transfer rollers 2 are arranged in two rows on the frame 1 so that the round bars A can be placed and transferred thereon. The surface treatment apparatus shown in the plan view of FIG. 1 is provided with six transfer rollers 2 in the upper row and seven transfer rollers 2 in the lower row in the drawing. The transfer rollers 2 in each row are, as shown in FIG.
Each of them is arranged at a position in contact with the surface of the round bar A to be transferred so as to support and transfer the round bar A. In the surface treatment apparatus shown in FIG. 1 and FIG. 2, the transfer rollers 2 in each row are arranged in a straight line. As shown in FIG. 2, the two rows of transfer rollers 2 transfer while rotating with a round bar A placed therebetween. Therefore, the distance between the transfer rollers 2 arranged in two rows is adjusted such that the distance d between the outer circumferences of the pair of transfer rollers 2 arranged adjacent to each other is smaller than the diameter D of the round bar A to be transferred. ing. However, if the transfer roller 2 comes too close to the transfer roller 2, the round bar A is laterally pressed and rolls out of the transfer roller 2. Therefore, the interval between the adjacent transfer rollers 2 is adjusted to an optimum value in consideration of the outer diameter of the transfer roller 2 and the outer diameter of the round bar A. For example, when the outer diameter of the transfer roller 2 is 250 mmφ and the outer diameter of the round bar A to be transferred is 100 to 220 mmφ, the distance between the rotary shafts 5 of the transfer rollers 2 arranged adjacent to each other is 26.
It is adjusted to 0-300 mm. The turntable 3 rotates the transfer roller 2 in a horizontal plane,
The transfer rollers 2 arranged in two rows are rotatably supported on the frame 1 in a horizontal plane so that the transfer speed of the round bar A can be changed. The rotary table 3 is supported by the frame 1 in such a manner that the rotary shafts 5 of the transfer rollers 2 are parallel to each other so that the transfer amount of the round bar with respect to the peripheral speed of each transfer roller 2 becomes equal. The turntable 3 shown in FIGS. 1 and 2 includes a turntable 6 rotatably supported on the frame 1 in a horizontal plane,
The turntable 6 is provided with a column 7 provided vertically. The rotating shaft 5 of the transfer roller 2 is horizontally supported on the upper end of the column 7. The rotating means rotates the respective rotary bases 3 together in the horizontal plane. The rotating means includes a drive shaft 8, a foam gear that transmits the rotation of the drive shaft 8 to the turntable 6, and an interlocking shaft 9 that rotates the two drive shafts 8 together. The drive shaft 8 extends in the transport direction of the round rod A in the frame 1 and is supported by bearings. A worm 10 is fixed to the drive shaft 8. A worm wheel 11 is fixed to the central axis of the turntable 6, and the worm wheel 11 is meshed with a worm 10 fixed to a drive shaft 8. The drive shaft 8 is rotated together via the bevel gear and the connecting shaft 9. In FIG. 1, a handle 12 is fixed to the connecting shaft 9 on one side. When the connecting shaft 9 is rotated by the handle 12, the drive shaft 8
Is rotated and all the worm wheels 11 are rotated by the drive shaft 8 to rotate the turntable 6 in the horizontal plane. Therefore, by rotating the connecting shaft 9, all the turntables 6 are rotated together, and
The tilt angle of the transfer roller 2 can be adjusted. That is, by rotating the handle 12, the transfer speed of the round bar A can be adjusted. The driving means of the transfer roller 2 includes a motor 13, a rotary drive shaft 14 rotated by the motor 13, a pulley 15 fixed to the rotary drive shaft 14 and the rotary shaft 5 of the transfer roller 2, and a pulley 15. It is provided with a hung belt 16. The rotary drive shaft 14 is extended right below the turntable 6 in parallel with the transfer direction of the round bar A and is supported in the frame 1. A pulley 15 is fixed to the rotary drive shaft 14. On the other hand, the rotary shaft 5 of the transfer roller 2
Also, the pulley 15 is fixed. The transfer roller 2 and the rotary drive shaft pulley 15 are connected to each other via a belt 16. The frame 1 has a hole through which the belt 16 passes. The hole of the belt 16 is formed in an arc shape so that the belt does not hit even if the transfer roller 2 rotates in a horizontal plane. Two rotary drive shafts 14
Is a motor 1 via a pulley and a belt (not shown).
3 and are rotationally driven in the same direction as each other. The round bar surface treatment means 4 is disposed in the middle for the surface treatment of the round bar A transferred by the transfer roller 2.
The surface treatment means 4 shown in the figure is a polishing means for polishing the surface of the round bar A. This polishing means includes a polishing belt 17, a pulley (not shown) around which the polishing belt 17 is hung, and a motor 18 that rotationally drives the pulley. Since the polishing belt 17 polishes the surface of the round bar A, the polishing belt 17 is arranged at a position in contact with the surface of the round bar A to be transferred. The round bar A transferred by the transfer roller 2 has its surface polished by a polishing belt 17 and sent out.

[Effect of device]

The surface treatment device for a round bar for a log house according to the present invention has a feature that a transfer roller that rotates in a horizontal plane can be rotated by a simple drive means. It is because the device of the present invention is provided with a rotary drive shaft extending in the transport direction of the round bar,
This is because the pulley is fixed to the rotary shaft of the transfer roller, and both pulleys are connected by a belt. In this way, the driving means for connecting the transfer roller to the rotary drive shaft via the belt can drive the transfer roller without difficulty even if the transfer roller is rotated in the horizontal plane, and moreover, the plurality of transfer rollers are rotated together by a simple mechanism. It has the feature that it can be driven. Furthermore, the surface treatment apparatus for a round bar of the present invention can adjust the transfer speed fast or slow without changing the rotation speed of the round bar. Further, if necessary, the rotation speed of the round bar can be changed by making the transfer speed of the round bar the same. This realizes the feature that all round bars A can be finished neatly and efficiently according to the surface condition after being processed into a cylindrical shape. For example, a round bar cylindrically processed into a state where innumerable burr-like protrusions are projected on the surface has the same effect when the surface treatment is performed by reducing the inclination angle of the transfer roller and reducing the transfer distance with respect to the rotation speed of the round bar. Since the part is repeatedly surface-treated, the surface can be beautifully finished. On the other hand, a round bar cylindrically processed with a relatively clean surface increases the inclination angle of the transfer roller to increase the transfer distance with respect to the rotation angle of the round bar. The round bar which is surface-treated in this state has a high transfer speed and is efficiently surface-treated in a short time. In this way, the apparatus for surface-treating the round bar realizes the characteristic that the surface treatment can be performed efficiently and neatly according to the surface condition of the round bar A that has been cylindrically processed. Furthermore, the surface treatment apparatus of this structure can easily inspect the surface condition of the entire surface of the round bar that has been cylindrically processed. This is because a heavy round bar is transferred while being rotated, so that the entire surface of the round bar can be observed while observing the entire surface of the round bar during transfer, and the entire surface state of the surface-treated round bar can be inspected. The surface treatment apparatus for a round bar having this structure can inspect the surface condition of the round bar before the surface treatment, and can inspect the entire surface of the round bar A after the surface treatment. Moreover, since the surface treatment condition can be adjusted quickly, the entire surface of all round bars can be cleanly and efficiently finished.

[Brief description of drawings]

1 to 3 are a plan view, an enlarged transverse sectional view of a main part and a side view of a surface treatment apparatus for a round bar showing an embodiment of the present invention. 1 ... Frame, 2 ... Transfer roller, 3 ... Rotating table, 4 ... Surface treatment means, 5 ... Rotating shaft, 6 ... Turntable, 7 ... Post, 8 ... Drive shaft, 9 ... Connection shaft, 10 ... Worm, 11 ... Worm wheel, 12 ... Handle, 13 ... Motor, 14 ... Rotation drive shaft, 15 ... Pulley, 16 ... Belt, 17 ... Abrasive belt, 18 ... Motor, A ... Round bar.

Claims (1)

[Scope of utility model registration request] 1. A surface treatment device for a round bar for a log house having the following configuration. (A) The surface treatment device for a round bar includes a frame (1), a transfer roller (2), a rotary base (3) for mounting the transfer roller (2) on the frame (1), and a rotary base (3). It is provided with rotating means, drive means for rotating the transfer roller (2), and surface treatment means (4) for the round bar (A). (B) There are three or more transfer rollers (2), which are arranged in two rows in the frame (1). (C) The transfer rollers (2) in each row are arranged at a position in contact with the surface of the round bar (A) to be transferred. (D) The distance (d) between the outer circumferences of the transfer rollers (2) arranged in two rows is adjusted to be smaller than the diameter (D) of the round bar (A) to be transferred. (E) The rotary base (3) supports the transfer rollers (2) arranged in two rows on the frame (1) rotatably in a horizontal plane. (F) The turntable (3) connects the transfer rollers (2) to the rotary shaft (5).
Are supported on the frame (1) so that they are parallel to each other. (G) The rotating means is connected to each rotary base (3), and the rotary bases (3) together rotate in a direction inclined with respect to the transfer direction of the round bar (A) in the horizontal plane. Let (H) The driving means of the transfer roller (2) is connected to the plurality of transfer rollers (2) and rotationally drives the transfer roller (2). (I) The surface treatment means (4) for the round bar (A) is arranged in the transfer passage for the round bar (A). (J) The drive means includes a rotary drive shaft (14) arranged in the frame 1 so as to extend to the transfer method of the round bar (A), and a rotary drive shaft (14).
The motor (13) that rotates the rotating shaft of the transfer roller (2)
It comprises a pulley (15) connected to (5), a rotary drive shaft (14) and a belt (16) hung on the pulley (15), and a motor (13) rotates the rotary drive shaft (14). The rotary drive shaft (14) rotates the pulley (15) of the transfer roller (2) via the belt (16), and the pulley (15) rotates the transfer roller (2).