JP3155296B2 - Floor column cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor column cutting machine suitable for use in manufacturing a floor column by cutting a core material manufactured in an octagonal column shape into a cylindrical shape.

[0002]

2. Description of the Related Art In a Japanese-style room of a house, particularly a Japanese-style room such as a pure Japanese house, a floor space 1 is often formed as shown in FIG. Is provided. Conventionally, in a Japanese room of a pure Japanese house,
In general, the floor pillar 2 is formed by chamfering a natural tree such as hinoki, pine, maple, or the like into a column shape, and the grain appearing on the surface gives off the atmosphere.

[0003]

However, the floor column 2
The method using the natural tree as it is has a problem that the cost is very high.

For this reason, recently, a method of manufacturing the floor column 2 through the steps shown in FIGS. 9A to 9F has been adopted. That is, plywood or the like 3a, 3a,.
After laminating a plurality of sheets (a) and integrating them to produce a square pillar-shaped laminated wood 3 (b), four corners of the glued laminated wood 3 are cut out and processed into an octagonal prism shape (c), and further this octagonal pillar shape is formed. The outer peripheral surface of the core material 4 is cut into a cylindrical shape (d), and thereafter, the veneer veneer 5 is attached to the outer surface of the cylindrically processed core material 4 (e), Manufacture the desired floor column 2
(f). According to such a method, since the glued laminated lumber 3 which is relatively inexpensive is used, the floor column 2 can be provided at low cost, and since the veneer 5 is attached to the outer surface, the appearance is also reduced. It has a grain that is not different from that of a natural tree, and can give a feeling to it.

By the way, in the above-mentioned manufacturing process of the floor column 2, the operation of cutting the outer peripheral surface of the octagonal columnar core material 4 into a columnar shape, in particular, has often been performed manually by an operator. It was the actual situation. However, it is difficult to uniformly and evenly cut the outer peripheral surface of the octagonal pillar-shaped core material 4 to form a columnar shape with a perfectly circular cross section, and many parts rely on the intuition and experience of a skilled worker. For this,
There were problems that the working efficiency was poor and that the accuracy of the cutting process was difficult to obtain.

The present invention has been made in view of such circumstances, and in the above-described floor pillar manufacturing process, a process of cutting the outer peripheral surface of an octagonal pillar-shaped core into a cylindrical shape.
An object of the present invention is to provide a floor column cutting machine which is suitably used in (c) to (d) and can perform cutting with high accuracy and good workability.

[0007]

A floor pillar cutting machine according to the present invention clamps an octagonal pillar-shaped core in a substantially horizontal direction at both ends in the longitudinal direction of the core, and holds the core in a circumferential direction. A clamping mechanism that rotatably supports the core in a direction, a rotation mechanism that rotates the core in a circumferential direction while being clamped by the clamp, and a cutting mechanism that cuts the outer peripheral surface of the core clamped by the clamp. A floor column cutting machine comprising: a pair of cutters, wherein the cutting mechanism has a drum-type cutting blade disposed on both sides of the core material and facing the outer peripheral surface of the core material, A pair of movable tables that support the cutter, a moving device that moves the movable tables in the length direction of the core, and a distance between the two movable tables by moving the pair of movable tables in the radial direction of the core. And an adjusting device that makes adjustment possible, and Said cutting edge of said pair of cutter its
The cutters are arranged so as to face each other, and the cutter is surrounded by a movable casing together with a movable table, and a suction pipe is connected to the casing.

[0008]

According to the floor pillar cutting machine of the present invention, the outer peripheral surface of the core material is cut while rotating in the circumferential direction by the rotating mechanism with both ends of the octagonal pillar-shaped core material clamped by the clamp mechanism. Cutting is performed by the mechanism. Since the cutting mechanism is provided with a moving device that moves a movable table supporting a pair of cutters disposed on both sides of the core material in the length direction of the core material, the cutter moves on the outer peripheral surface of the core material. Perform cutting while moving. Therefore, it is possible to easily and evenly perform the cutting process to efficiently finish the cylindrical core material.

In addition, the cutting mechanism is provided with an adjusting device for moving the movable table supporting the cutter in the radial direction of the core to adjust the distance between the movable tables. Irrespective of the diameter of the core material, the cutting blade of the cutter can be applied to the outer peripheral surface of the core material, so that accurate cutting can always be performed.

[0010] Further, since the cutter is surrounded by the casing and the suction pipe is connected to the casing, shavings generated by the cutter are sucked by the suction pipe and do not pollute the work place.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a floor column cutting machine according to the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show the overall configuration of a cutting machine according to the present embodiment. FIG. 1 is a side view, and FIG. 2 is a plan view.

Reference numeral 11 in the drawing denotes a housing which forms an outer shell of the cutting machine 10, and includes a support leg portion 12 which is generally formed in a rectangular frame shape elongated in the front-rear direction (the left-right direction in FIGS. 1 and 2). And a gantry 13 which is fixed on the support leg 12 and has a function of cutting the core material 4. The gantry 13 is provided on the support leg 12 with two bottom plates 14, 14 each having an elongated hollow hollow prism shape that is fixed in parallel with each other in the front-rear direction and the bottom plate 1.
4 and 14, the front end position of the housing 11 (FIGS. 1 and 2).
At the right end) and at the rear end (the left end in FIGS. 1 and 2).
And the support plates (front end support plate 15a and rear end support plate 15b) provided respectively.

A clamp mechanism 16 is provided on the two support plates 15a and 15b. The clamping mechanism 16
A first clamp portion 17 provided on the front end support plate 15a with the front end facing the inside of the housing 11, and a first clamp portion 17 provided on the rear end support plate 15b with the front end facing the inside of the housing 11. The second clamp portion 18 is provided as a main body, and the core material 4 as a work to be cut is sandwiched between the first and second clamp portions 17 and 18 in a state where the core material 4 is arranged in a horizontal state. It can be fixed.

The first clamp portion 17 has a substantially cylindrical shape, and its tip is a claw piece 17a having a pointed cone shape. An iron spacer 19 is interposed between the claw piece 17a and the end surface of the core material (workpiece) 4 to prevent the claw piece 17a from being displaced from the core material 4. The spacer 19 has a substantially disk shape, and a large number of needles (not shown) that pierce the end surface of the core 4 protrude from a surface of the spacer 19 that is in contact with the end surface of the core 4. At the approximate center of the surface of the tip of the first clamp portion 17 that is in contact with the claw piece 17a,
A conical hole (not shown) into which the tip of the claw piece 17a is fitted is provided.

The second clamp portion 18 has a substantially cylindrical shape similarly to the first clamp portion 17, and a disk-shaped fixing bracket 20 is attached to a tip end thereof. Fixing bracket 20
Are provided with several needles (not shown) which pierce the end surface of the core member 4 to prevent the core member 4 from shifting.

The first clamp portion 17 is attached to a sliding portion 21 provided on the front end support plate 15a. The sliding portion 21 is slidable on the front end support plate 15a in the front-rear direction (the left-right direction in FIGS. 1 and 2), and the sliding portion 21 is connected to the air cylinder 22. The sliding portion 2 is driven by the driving of the air cylinder 22.
When 1 slides on the front end support plate 15a, the first clamp portion 17 can move in the longitudinal direction of the core 4 accordingly. Further, the first clamp portion 17 is connected to a first rotary motor 24 via a rotating belt 23, and the first clamp motor 17 is driven to rotate in the front-rear direction by rotation of the first rotary motor 24. The movement can be finely adjusted.

The second clamp portion 18 is attached to a second rotation motor (rotation mechanism) 25 mounted on the rear end support plate 15b of the housing 11, and the second rotation motor It is rotatable by 25 rotation drives. With the rotation of the second clamp portion 18, the core member 4 sandwiched between the first and second clamp portions 17, 18 can be rotated in the circumferential direction.

Below the first clamp portion 17 and in the second
On the bottom plates 14 of the book, a cutting mechanism 40 for cutting the outer peripheral surface of the core material 4 from both sides thereof is provided. As will be described later, the cutting mechanism 40 is disposed on both sides of the core member 4 and faces the outer peripheral surface of the core member 4.
0a, and a pair of movable tables 26, 26 supporting the cutters 30, 30 are provided.

The movable tables 26, 26 are provided with the movable tables 26, 26, respectively.
Are provided along the length of the bottom slabs 14, 14, respectively. That is, a female screw member 27 is attached to the bottom surface of each movable base 26 such that the distal end penetrates into the inside of the bottom plate 14, and the distal end of the female screw member 27 extends in the longitudinal direction of the bottom plate 14. A penetrating female screw hole is provided. On the other hand, a screw shaft 28 is provided inside the bottom plate 14 so as to be screwed into the female screw hole of the female screw member 27 so as to extend in the longitudinal direction of the bottom plate 14. At one end of the screw shaft 28, an operation unit 29 for rotating the screw shaft 28 is provided. Thus, the screw shaft 28 and the female screw member 27 constitute a moving device 41 for moving the movable table 26 in the length direction of the core 4. That is, by rotating the screw shaft 28 by operating the operation portion 29 provided at one end of the screw shaft 28, the screwing depth between the screw shaft 28 and the female screw member 27 is adjusted, and accordingly, The movable table 26 fixed to the female screw member 27 is configured to move on the bottom plate 14 along the length direction of the bottom plate 14.

As shown in FIGS. 3 to 5, cutters 30, 30 are attached to the surfaces of the two movable tables 26, 26 facing each other. The cutter 30 attached to one movable base 26 has a drum-shaped cutting blade 30a having a trapezoidal cross section that gradually expands upward, and the cutter 30 mounted to the other movable base 26 gradually expands downward. It has a drum-shaped cutting blade 30a having a trapezoidal cross section and a diameter. In other words, the pair of cutters 30,
The cutting blades 30a, 30a have opposite directions.
It is arranged like. And the cutting blade 30a of these cutters 30 is provided facing the outer peripheral surface of the core material 4, and
It is configured to slide on the outer peripheral surface of the core 4 with the movement of the movable base 26 and to cut the outer peripheral surface of the core 4 from both sides.

Further, a lid 31 is provided above the movable bases 26, 26 to close a gap between the movable bases 26, 26 from above. The lid 31 can be opened and closed by being rotatably attached to the upper surface of one movable base 26. A substantially central portion of the lower surface of the lid 31 is formed with a dent having a curvature along the outer peripheral surface of the core member 4, and a file plate 32 is attached along the dent.

The movable bases 26 and 26 have the movable base 2
6, 26 in the radial direction of the core material 4,
An adjusting device 42 that can adjust the distance between the two 26 is provided. That is, the movable tables 26, 26 respectively
Screw hole 3 extending in the width direction of housing 11 and penetrating therethrough
3, 33 are provided, and the screw holes 33, 33 have 2
One screw rod 34 connecting the two movable stands 26, 26 is screwed. The screw thread formed on the outer periphery of the screw rod 34 is disconnected at almost the center of the screw rod 34,
Moreover, the screw threads are formed in opposite directions on both sides of this portion. At one end of the screw rod 34, a handle portion 35 for rotating the screw rod 34 is provided. In this way, the screw hole 33, 33 and the screw rod 34 constitute an adjusting device 42 capable of adjusting the distance between the movable tables 26, 26. That is, by rotating the screw rod 34 in one direction by operating the handle 35, the two movable tables 26, 26 move in opposite directions along the screw rod 34, and
It is configured such that the distance between 6, 26 can be adjusted by increasing or decreasing the distance.

The first clamp 17, the second rotary motor 25 and the second clamp 18 are surrounded by casings 36 and 37, respectively.

Further, the two movable tables 26, 26, the cutters 30, 30 attached thereto, and the file plate 32
The cutting mechanism 40 is housed in a movable casing 39 provided so as to be movable along the length direction of the bottom plates 14, 14. Two suction pipes (not shown) are connected to the upper surface of the movable casing 39,
Chips and the like generated when the outer peripheral surface of the core member 4 is cut by the cutters 30 and 30 attached to the casings 26 and 26 are discharged from the casing 39 through a suction pipe.

Next, a method of manufacturing the floor column 2 using the cutting machine 10 having such a configuration will be described with reference to FIGS.

First, a core material 4 to be cut by the cutting machine 10 is prepared. That is, a plurality of plywoods 3a, 3a, etc., which have been processed into a plate shape in advance, are laminated, and these are integrated to produce a square pillar-shaped laminated material 3, which is then laminated.
Are cut off to obtain an octagonal pillar-shaped core material 4.

The octagonal pillar-shaped core 4 is set in the cutting machine 10. That is, in a state where the core material 4 is arranged horizontally,
First and second ends of the clamping mechanism 16 are
Between the clamp portions 17 and 18. At this time, depending on the length of the core 4, the first clamp 17 is moved by operating the air cylinder 22,
The distance between the first and second clamp portions 17, 18 may be adjusted. Alternatively, if necessary, fine position adjustment of the first clamp portion 17 can be performed by driving the first rotary motor 24. A spacer 19 is interposed between the first clamp portion 17 and the end face of the core 4, and a large number of needles (not shown) protruding from the spacer 19 are pierced into the end face of the core 4, so that the end faces of the core 4 can be inserted. 1 clamp section 17
And the core material 4 are prevented from shifting. In addition, since the fixing bracket 20 is attached to the tip of the second clamp portion 18, the displacement between the second clamp portion 18 and the core member 4 is similarly prevented.

After the core member 4 is fixed to the clamp mechanism 16 in this manner, the second rotation motor (rotation mechanism) 25 is rotated to rotate the core member 4 at a constant speed in the circumferential direction. At this time, the positional relationship between the core 4 and the cutters 30, 30 is as shown in FIG.

In this state, the cutting process is started. Prior to the cutting process, first, as shown in FIG. 7, the adjusting device 42 applies the cutting blades 30a, 30a of the cutters 30, 30 to the outer peripheral surface of the core material 4. Do the work of attaching. That is, the handle part 35 is operated to rotate the screw rod 34 to move the two movable bases 26, 26 in the movable casing 39, whereby the cutter 30 attached to the two movable bases 26, 26 is moved. , 30 are adjusted so that the cutting blades 30a, 30a of the movable bases 26, 26 abut on the outer peripheral surface of the core member 4, respectively. At this time, the movable body 26, the lid 31
Open. Next, the movable table 2 is moved by the moving device 41.
6, 26 are moved to start cutting. That is,
By operating the operation units 29, 29 in the bottom plates 14, 14, the screw shaft 2
8, 28 are rotated at a constant speed.
6 and 26 are moved along the length direction of the core material 4. Since the core member 4 is rotating at a constant speed, the cutting edges 30a, 30a of the cutters 30, 30 move on the outer peripheral surface of the core member 4 while sliding, so that the eight corners of the core member 4 are cut off. It is roughly cut into a cylindrical shape.

After the movable tables 26, 26 have moved to the other end of the core 4, the movable tables 26, 2 are operated by operating the handle 35.
6, the cutter 30, 30 is separated from the outer peripheral surface of the core member 4, the cover 31 provided on the movable table 26, 26 is closed, and the file attached to the lower surface of the cover 31 is closed. The plate 32 is applied to the outer peripheral surface of the core 4. In this state, the operation sections 29, 29 are operated to rotate the screw shafts 28, 28 in the direction opposite to the first direction, thereby moving the movable tables 26, 26 in the direction to return to the original position. The core 4 rotates at a constant speed, and the file 4 is gradually rubbed on the outer peripheral surface thereof, whereby the core 4 is gradually processed into a cylindrical shape having a smooth roundness. Go.

Next, a veneer veneer 5 having a grain is attached to the outer surface of the cylindrical core material 4 thus cut.
The intended floor column 2 is manufactured.

As described above, according to the core material cutting machine of the present embodiment, both ends of the octagonal pillar-shaped core material 4 are clamped by the first and second clamp portions 17 and 18, and Since the outer peripheral surface is cut by the cutters 30 while rotating the core 4 in the circumferential direction by the rotary motor 25, the outer peripheral surface of the octagonal pillar-shaped core 4 is manufactured when the floor column 2 is manufactured. The step of cutting into a cylindrical shape can be easily performed.

Further, since the movable bases 26, 26 supporting the cutters 30, 30 can be moved in the length direction of the core 4 by the moving device 41, the cutters 30, 30 are movable.
The drum-type cutting blades 30a, 30a cut the outer peripheral surface of the core material 4 while moving on the outer peripheral surface of the core material 4. For this reason, the cutting of the core material 4 can be finished with high quality without unevenness.

In this embodiment, the first clamp 1
7 can be moved by the air cylinder 22,
In addition, since the first rotary motor 24 can finely adjust the position, the core 4 can be easily clamped irrespective of the length of the core 4 and the workability is good.

Further, the movable table 2 supporting the cutter 30
6, since the adjusting device 42 enables the core member 4 to be moved in the radial direction, the cutting blade 30a of the cutter 30 is attached to the outer peripheral surface of the core member 4 regardless of the diameter of the core member 4. The contact can be reliably applied, and a high-precision cutting process can be performed.

Further, according to the cutting machine of the present embodiment, the outer peripheral surface of the core member 4 is roughly cut by the cutters 30, 30 during the forward movement, and the finishing work is performed by the file plate 32 during the backward movement. With one reciprocating operation, a smooth outer peripheral surface can be obtained.

The cutting mechanism 40 including the cutters 30, 30 and the file plate 32 is provided with a movable casing 39.
Since the suction pipe (not shown) is connected to the movable casing 39, shavings generated by the cutting process are always sucked by the suction pipe and discharged from the casing 39. Therefore, it is not necessary to disperse the shavings in the surrounding workplaces, so that the workplaces are not polluted and the work efficiency is not reduced.

The cutter 30 having the drum-type cutting blade 30a was used.
When the zero cutting blade 30a is worn out or worn out, the cutter 30 can be rotated to use a new cutting blade. Therefore, it can withstand many repeated uses and has a great economic effect.

The floor column cutting machine of the present invention is not limited to the one shown in the above embodiment, but the specific configuration such as the shape of each member can be changed as appropriate upon implementation.

For example, in the above-described embodiment, the moving device 41 for moving the movable table 26 in the length direction of the core member 4 is connected to the movable table 2.
Although the female screw member 27 attached to the base plate 6 and the screw shaft 28 provided inside the bottom plate 14 are used, a mechanism using, for example, a rotating chain or the like may be used. Other configurations are also possible.

The adjusting device 42 for moving the movable table 26 in the radial direction of the core member 4 is also different from the structure using the screw rod 34 connecting the two movable tables 26, 26 as shown in the above embodiment. Of course, other configurations are also possible.

[0043]

As described above, according to the floor pillar cutting machine of the present invention, in the floor pillar manufacturing process, the process of cutting the outer peripheral surface of the octagonal pillar-shaped core material into a cylindrical shape is performed. It can be implemented easily and efficiently. Since the cutting mechanism is provided with a moving device that moves the movable base supporting the cutter in the length direction of the core material, the cutter performs cutting while sliding on the outer peripheral surface of the core material. An even and uniform cutting process can be performed.
In addition, since the cutting mechanism is provided with an adjusting device that moves the movable table in the radial direction of the core, the cutting blade of the cutter can be securely attached to the outer peripheral surface of the core regardless of the diameter of the core. It can be applied, and it is possible to always perform high-precision cutting. In addition, the cutting blades of the pair of cutters have the same orientation.
And the front and back sides of the cutting blade.
Since simultaneous processing using both can be performed, for example,
Cutting, by using the back side as the finish cutting,
Simultaneously improving efficiency and obtaining a good finished surface
can do. In addition, since the cutter is surrounded by the casing, and the suction pipe is connected to the casing, shavings generated by the cutter are sucked by the suction pipe and discharged from the casing, so that the work place does not need to be soiled. Further, since a cutter having a drum-type cutting blade is used as the cutter, it is possible to cope with the wear of the cutting blade, which is economical.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a floor column cutting machine according to the present invention.

FIG. 2 is a plan view showing the cutting machine.

FIG. 3 is a perspective view showing a clamp mechanism and a cutting mechanism of the cutting machine.

FIG. 4 is a plan view showing a cutting mechanism of the cutting machine.

FIG. 5 is a side view showing the cutting mechanism.

FIG. 6 is a cross-sectional view showing a state before cutting a core material by a cutting mechanism.

FIG. 7 is a cross-sectional view showing a working state when cutting a core material by a cutting mechanism.

FIG. 8 is a perspective view showing an example of a floor column provided in a Japanese-style room of a house.

FIG. 9 is a perspective view illustrating an example of a method of manufacturing a floor column in a process order.

[Explanation of symbols]

 Reference Signs List 4 core material 16 clamp mechanism 25 second rotation motor (rotation mechanism) 26 movable table 30 cutter 30a drum-type cutting blade 40 cutting mechanism 41 moving device 42 adjusting device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-62702 (JP, A) JP-A-3-288601 (JP, A) JP-A-3-36803 (JP, U) 501677 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B27C 7/00 B27C 7/06 B27G 3/00

Claims (1)

(57) [Claims] 1. A clamp mechanism for clamping an octagonal pillar-shaped core material in a substantially horizontal direction at both ends in the longitudinal direction of the core material, and supporting the core material rotatably in a circumferential direction thereof, and the core material. A floor column cutting machine comprising: a rotation mechanism that rotates in a circumferential direction in a state clamped by a clamp mechanism; and a cutting mechanism that cuts an outer peripheral surface of the core material clamped by the clamp mechanism. A pair of cutters each having a drum-type cutting blade disposed on both sides of the core member and facing the outer peripheral surface of the core member, a pair of movable tables supporting the cutter, A moving device for moving the core in the length direction of the core, and an adjusting device for adjusting the distance between the two cutters by moving the pair of movable tables in the radial direction of the core, and the cutting blade of the pair of cutters its orientation Each other
A floor column cutting machine characterized by being arranged so as to face each other and being surrounded by a casing in which the cutter is movable together with a movable table, and a suction pipe is connected to the casing.