JP6992973B2 - Log drilling machine - Google Patents

Description

The present invention relates to a punching machine for drilling (drilling) a log material.

There are various drilling machines for drilling logs using drilling tools such as drilling devices incorporating drill bits.
For example, in order to accurately drill in the direction parallel to or perpendicular to the lumber core of the log material based on the inked lines of the upper core, horizontal core, and lower core that have been inked on the peripheral side surface of the log material in advance, the frame shape Some legs are provided with a measure and a positioning member (see Patent Document 1).

Japanese Unexamined Patent Publication No. 8-57002

When drilling a long distance, for example, about 3 m, using a drilling machine as in Patent Document 1 or a known drilling machine, a drill bit is repeatedly inserted and pulled out from the drilled surface of the log material. , The perforation chips (so-called chips) generated during the repetition will adhere to the spiral groove of the drill bit.
For this reason, it takes time to complete the drilling because the drilling is stopped in the middle to remove the drilling debris or the drill bit is replaced.
Therefore, it is an issue to provide a drilling machine capable of preventing the adhesion of drilling chips to the drill bit.

In order to solve the above problems, the log punching machine of the present invention has the following means.
A gantry with a clamp and a lower rail, a drill device with a drill bit, a drill device moving mechanism (bottom) connected to the drill device with wheels moving along the lower rail, and above the drill device. It consists of an upper rail parallel to the provided lower rail and a drill device moving mechanism (top) that has wheels moving along the upper rail and is connected to the drill device, and a drilling debris removal mechanism is connected to the upper rail. It is characterized by that.

According to the log punching machine of the present invention, the drilling debris is removed when the drill bit is pulled out from the log by the perforating waste removing mechanism.
Therefore, it is possible to prevent the perforation debris from adhering to the drill bit.

It is a figure which showed the drilling machine of the log material of this invention, (a) is a plan view, (b) is a right side view. It is a figure which showed the drilling machine of the log material of this invention, (a) is a front view, (b) is a rear view. It is a figure which showed the arrow view AA in FIG. It is a figure which showed the arrow view BB in FIG. It is a figure which showed the arrow CC in FIG. 1. It is a figure which showed the state which the log material was fixed to the drilling machine of the log material of this invention, (a) is a front view, (b) is a plan view. It is a right side view which showed the state which the drilling machine of the log material of this invention is punching a log material. It is a right side view which showed the state which the drilling machine of the log material of this invention was brushing off the drilling debris adhering to a drill bit.

Hereinafter, embodiments of the log punching machine of the present invention will be described with reference to FIGS. 1 to 8.
This description is an example of the present invention, and the present description does not limit the present invention.

First, the configuration of the log punching machine 1 will be described with reference to FIGS. 1 to 5.
In these figures, the log lumber 100 is shown by a virtual line (two-dot chain line).
In FIGS. 2 (a) and 2 (b) and FIGS. 3 to 5, only the most recently visible configurations are shown, and all the configurations are not shown.

As shown in FIGS. 1 (a) and 1 (b), the log drilling machine 1 includes a gantry 2, a drill device 10, a drill device moving mechanism (bottom) 11, an upper rail 5, and a drill device moving mechanism. (Top) 12 and a drilling debris removing mechanism 20.

The drill device 10 has a drill bit 10A on the tip side (front side), and drives (rotates) the drill bit 10A to drill the log material 100.

As shown in FIGS. 1 (a) and 1 (b), the gantry 2 has a substantially flat plate shape that is long in the front-rear direction (movement direction), has legs 7 on the lower side, and has two lower rails 4 on the upper front and back. Have parallel to the direction.

A drill device moving mechanism (bottom) 11 is provided so that the drill device 10 moves in the front-rear direction along the lower rail 4. The drill device moving mechanism (bottom) 11 has a frame 11A and wheels 11B, and the frame 11A is connected to the lower side of the drill device 10.
As the wheel 11B rotates on the lower rail 4, the drill device 10 moves in the front-rear direction along the lower rail 4.

The number of the lower rails 4 may be one or three or more, but two are preferable.
It has two wheels 11B in the front-rear direction with respect to one of the lower rails 4. The number of wheels 11B may be one or three or more, but two wheels are preferable.

The upper rail 5 is provided above the drill device 10 in the front-rear direction in parallel with the lower rail 4.
As shown in FIG. 1A, the positional relationship between the two lower rails 4 and the upper rail 5 in the left-right direction is provided so that the upper rail 5 comes between the two lower rails 4. It is preferable that the upper rail 5 is provided in the middle of the two lower rails 4 in the left-right direction.

A drill device moving mechanism (upper) 12 is provided so that the drill device 10 moves in the front-rear direction along the upper rail 5. The drill device moving mechanism (top) 12 has a frame 12A and wheels 12B, and the frame 12A is connected to the upper side of the drill device 10.
As the wheel 12B rotates on the upper rail 5, the drill device 10 moves in the front-rear direction along the upper rail 5.

In order to fix the log lumber 100 and the upper rail 5, the log lumber fixing frame 3 and the upper rail fixing frame 6 are provided.

As shown in FIGS. 1 (a), 1 (b) and 2 (a), the log material fixing frame 3 has a frame shape having an opening in front view (front view), and has an inner peripheral left side and inner side of the frame. It has a pair of left and right clamps 3A connected to the right side of the circumference. Each clamp 3A has a substantially <character shape, the right side has an approximately> character shape so as to be in contact with at least two points on the outer circumference of the log material 100 when viewed from the front. It is preferable that the side in contact with the outer circumference of the log material 100 has a substantially arc shape because it is in contact with the outer circumference of the log material 100 in large quantities.
Although not shown in the figure, each clamp 3A preferably has a structure that can be expanded and contracted in the left-right direction, and has a threaded shape.
Each clamp 3A is also connected to the upper side of the inner circumference of the frame by a member so as to be firmly in contact with the outer periphery of the log material 100.
In this way, the front side of the log material 100 is fixed by the log material fixing frame 3 (front side).

As shown in FIGS. 1 (a), 1 (b) and 2 (b), the upper rail fixing frame 6 has a frame shape having an opening in the rear view (rear view), and is on the upper side of the inner circumference of the frame. It has a connected fixing member 6A.
The fixing member 6A is composed of two brackets and a pipe connecting these brackets, the upper bracket is connected to the upper side of the inner circumference of the frame, and the upper rail 5 is connected to the lower bracket.

As shown in FIGS. 1 (a), 1 (b) and 3, the log material fixing frame 3 for fixing the rear side of the log material 100 is a log for fixing the front side of the log material 100 shown in FIG. 2 (a). A structure for fixing the upper rail 5 is added to the lumber fixing frame 3. Specifically, the fixing member 6A of the upper rail fixing frame 6 shown in FIG. 2B is connected to the upper side of the inner circumference of the frame.
In this way, the rear side and the upper rail 5 of the log material 100 are fixed by the log material fixing frame 3 (rear side) and the upper rail fixing frame 6.

As described above, the log lumber 100 and the upper rail 5 are fixed by the log lumber fixing frame 3 (front side and rear side) and the upper rail fixing frame 6.

In order to fix the upper rail 5 more firmly, as shown in FIGS. 1 (a) and 1 (b), the upper rail fixing frame 6 is divided into a log material fixing frame 3 (front side) and a log material fixing frame 3 (rear side). ) May be added.
FIG. 4 is a front view of the added upper rail fixing frame 6, and since the structure is the same as that of FIG. 2B, detailed description thereof will be omitted.

Similarly, although not shown in FIGS. 1 (a) and 1 (b), in order to fix the log lumber 100 more firmly, the log lumber fixing frame 3 (front side) and the log lumber fixing frame 3 (rear side) A log lumber fixing frame 3 may be added in between. The same thing as the log lumber fixing frame 3 (front side) to which the fixing member 6A is not added when the upper rail 5 is not fixed, and the log lumber fixing frame 3 to which the fixing member 6A is added when the upper rail 5 is fixed. Add the same as (rear side).

The drill bit 10A is driven to move (insert) the drill device 10 in the forward direction, and the fixed log material 100 is drilled.
When the drill device 10 is moved (pulled out) in the rear direction, the drilling debris 21 may adhere to the spiral groove of the drill bit 10A.
In order to prevent the drill bit 21 from adhering to the drill bit 10A, the drill bit removal mechanism 20 is connected to the upper rail 5.

As shown in FIGS. 1 (a), 1 (b) and 5, the perforated waste wiping mechanism 20 is composed of a wiping portion 20A and a fixing member 20B.

The pay-off portion 20A has a shape that hangs down from the upper rail 5 toward the gantry 2, and hangs down to at least the height of the drill bit 10A.
When the drill bit 10A moves in the front-rear direction and comes into contact with and passes through the wiping portion 20A, the resistance thereof causes the drill bit 21 to be swept off from the drill bit 10A.

Since the drill bit 10A has a spiral groove, the wiping portion 20A covers the outer peripheral surface of the drill bit 10A, and when the drill bit 10A contacts and passes through, a large amount of drilling debris 21 is blown off. To do so. Therefore, instead of one member, a large number of rod-shaped or strip-shaped members having a small width or diameter in the left-right direction are collected and configured.

Since the wiping portion 20A uses the contact resistance with the drill bit 10A, more perforated debris 21 is swept off when the contact time is lengthened. As described above, the material is softer than the drill bit 10A.

Based on these, it is preferable that the wiping portion 20A is a collection of a large number of twigs or a resin windsock.

The pay-off portion 20A is connected to the upper rail 5 by the fixing member 20B. The fixing member 20B may have any shape and material as long as the pay-off portion 20A can be connected to the upper rail 5, but a string is suitable for easy attachment / detachment to / from the upper rail 5.
FIGS. 1 (a), 1 (b), 5, 6 (b), 7 and 8 show a state in which the string (rope) fixing the wiping portion 20A is in the shape of a dumpling (spherical shape).

The position where the fixing member 20B is connected to the upper rail 5 may be on the rear side of the log material 100, but since the drilling debris 21 is immediately blown off when the drill device 10 is moved in the rear direction, the log material 100 Neighborhood is preferable.
Further, in order to wipe off the perforated waste 21, a plurality of perforated waste removing mechanisms 20 may be connected.

Next, drilling of the log lumber by the punching machine 1 will be described with reference to FIGS. 6 to 8.

As shown in FIGS. 6A and 6B, the log lumber 100 is fixed by the clamp 3A.
As shown in FIG. 6A, a marking line (horizontal direction) 101 and a marking line (vertical direction) 102 are marked on the perforated surface 100A of the log material 100.
Although no drawing has been created, the marking line (horizontal direction) 101 and the marking line (vertical direction) 102 are also formed on the perforated surface 100A on the back side (rear side) of the log material 100 as in FIG. 6A. Is marked.

Before the log material 100 is placed on the gantry 2 and fixed by the clamp 3A, the marking line (horizontal direction) 101 and the marking line (vertical direction) 102 are marked by the following procedure.
1. 1. A mark is made on the core (center of the annual ring) of the drilled surface 100A, and a marking line (left-right direction) 101 is marked using a spirit level based on this mark.
2. 2. The inking line (vertical direction) 102 is ruled using a deposit with the inking line (horizontal direction) 101 as a reference.
After fixing the log lumber 100 with the clamp 3A, 1. 2. You may write a rule by following the procedure in.

As shown in FIG. 6B, a marking line (front-back direction) 103 is marked on the upper surface of the log material 100. Mark the inked line (front-back direction) 103 by the following procedure.
1. 1. A pin (not shown) is driven at a position intersecting the inked line (vertical direction) 102 on the outer periphery of the drilling surface 100A on the front side (front side) and the back side (rear side). The pin may be a needle or a nail.
2. 2. A line connecting two pins is drawn on the upper surface of the log 100 using a chalk line. This line becomes the inked line (front-back direction) 103.

As shown in FIG. 7, the inking line (front-back direction) 103 is used as a guide (mark), and the drill device 10 is moved (inserted) forward along the guide (mark) to drill the log material 100. By repeating the forward movement (insertion) and the backward movement (pulling out) of the drill device 10, the core (annual ring) is directed from the drilling surface 100A on the back side (rear side) to the drilling surface 100A on the front side (front side). Penetrate along the center).

Penetration may be performed by a method other than the perforation surface 100A on the back side (rear side) toward the perforation surface 100A on the front side (front side).
After drilling from the drilling surface 100A on the back side (rear side) to the middle of the log material 100 in the front-rear direction, the drill device 10 is moved in front of the drilling surface 100A on the front side (front side) to move the drill device 10 to the front side (front side). Perforations may be made from the perforation surface 100A of the above toward the perforation surface 100A on the back side (rear side) and connected to the previous perforation.
In this case, if a drill device 10 is further provided and the drilling surface 100A on the back side (rear side) and the drilling surface 100A on the front side (front side) are drilled at the same time, the drilling device 10 can be quickly penetrated.

The core (center of the annual ring) may not coincide with the center of the drilled surface 100A in the left-right direction. In this case, the log lumber 100 is moved in the left-right direction by a left-right movement mechanism (not shown) provided on the gantry 2, and the core (center of the annual ring) and the drill device 10 are aligned in the left-right direction before drilling.

Further, the log material 100 may be bent in the left-right direction. In this case, it is not possible to drill along the core (center of the annual ring) over the entire front-back direction of the log material 100 even along the inking line (front-back direction) 103.
Therefore, a mark indicating a bent portion in the left-right direction is marked on the upper surface of the log material 100, and a line connecting the bent points in the left-right direction is sequentially ruled. In this way, a plurality of inked lines (front-back direction) 103 are drawn.

After drilling to a place that is bent in the left-right direction along one marking line (front-back direction) 103, a log so that it can be drilled along the marking line (front-back direction) 103 that will be the next guide (mark). The material 100 is fixed by changing the angle in the left-right direction, and then drilled. In this way, the holes are sequentially drilled.

Even if the drill bit 21 adheres to the spiral groove of the drill bit 10A when the drill device 10 is pulled out, the drill bit 10A contacts the wiping portion 20A of the drill bit wiping mechanism 20 as shown in FIG. The drill bit 21 is blown off from the drill bit 10A by the resistance of the drill bit 21.

Since the drill bit 10A passes in contact with the wiping portion 20A not only when the drill device 10 is pulled out but also when the drill device 10 is inserted, the drill bit 21 is surely swept off.

1 Log drilling machine 2 Stand 3 Log fixing frame 3A Clamp 4 Lower rail 5 Upper rail 6 Upper rail fixing frame 6A Fixing member 7 Leg 10 Drill device 10A Drill bit 11 Drill device moving mechanism (bottom)
11A Frame 11B Wheel 12 Drill device Movement mechanism (top)
12A Frame 12B Wheel 20 Perforated waste wiping mechanism 20A Sweeping part 20B Fixing member 21 Perforated waste 100 Log material 100A Perforated surface 101 Marked line (horizontal direction)
102 Inked line (vertical direction)
103 Inked line (front-back direction)

Claims (1)

A pedestal with a clamp and a lower rail, a drill device with a drill bit, a drill device moving mechanism (bottom) with wheels moving along the lower rail and connected to the drill device, and a drill. It consists of an upper rail parallel to the lower rail provided above the device and a drill device moving mechanism (top) having wheels moving along the upper rail and connected to the drill device. A drilling waste removing mechanism is connected to the rail, and the removing part of the drilling waste removing mechanism is composed of a large number of rod-shaped or strip-shaped ones, and the moving direction of the drill device is the front-back direction. Then, a log drilling machine characterized in that it is made of a material softer than a drill bit so that it flutters in the front-back direction and also flutters in the left-right direction .

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