JPH01314106A - Manufacturing device of wood fine piece such as material of toothpick - Google Patents

Abstract

PURPOSE:To automate cutting work where slivers of a tree with bark and made into wood fine pieces, by a method wherein the slivers of the tree with the bark are supported and conveyed with a conveyor roller having a specific form and along with cutting of both side fringes and the side of the slivers into flat surfaces by a roll cutter of a specific form they are divided into two. CONSTITUTION:Slivers 3 are guided to a groove 7 of a conveyor guide rest 6 so that the surfaces of them with bark and positioned at the bottom of the groove and ejected through the guide groove 7. With this construction, since the surface of the slivers with the bark and a crestlike split surfaces 3b of the slivers 3 are supported respectively with a U-shaped groove 10a of a conveyor roll 10 and a V-shaped groove 9a of a conveyor roll 9, the slivers 3 are conveyed favroably. When the slivers arrive at a roll cutter 13, since the cutter 13 is provided with both fringe blades 40 for cutting both side fringe parts 3a of the slivers 3, an intermediate blade 41 cutting the crestlike split surfaces 3b of the slivers 3 into a flat surface and a cutting blade 42 cutting the slivers 3 so as to divide the slivers 3 into two in the direction of a width, cutting of both the side fringe parts 3a and split surfaces 3b of the slivers 3 and cutting where the slivers 3 is divided into two with both ends of the central part 4b of an axial direction are performed at a time. Therefore, work where wood fine pieces such as a material of toothpicks are cut and processed can be automated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for producing wood strips such as toothpick material.

[Conventional technology]

Conventional 1 For example, toothpick materials are made by vertically splitting a blackbark tree called Kuromoji or Kurobunju, cutting the vertically split pieces into flat shapes, and cutting them into thin pieces of wood that are divided into two in the width direction. It is used.

That is, as shown in FIG.
If the diameter of As shown in the figure, when the diameter of the tree 2 is relatively small, it is divided into thirds from the center of the cross section to obtain three vertical pieces 3, and then the vertical pieces 3 are cut.

During cutting, as shown in Fig. 10.

Both edges 3a, 3a of the longitudinally split piece 3 are cut, and the mountain-shaped split surface 3b is cut flat, thereby obtaining a wood piece 4. After that.

As shown in FIG. 11, this piece of wood 4 is further cut at the center portion 4b in the width direction to obtain a bisected piece of wood 41. At this time, preferably both side edges 4 of the skin part 1 of the wood strip 41
Cut a and 4a into a chamfer shape.

Thus, the cotton piece 41 obtained above is as follows.

As shown in FIG. 12, one end is cut with a small force or the like so that it becomes a sharp part 39a, and a black character toothpick 39 with a black skin 1 is formed.

[Problem to be solved by the invention]

Conventionally, the cutting work shown in FIGS. 10 and 11 above was performed by
It was done by hand by skilled craftsmen. For this reason,
There is a problem in that production efficiency cannot be improved and costs cannot be reduced due to labor costs and the like.

[Means to solve the problem]

The present invention solves the above-mentioned problems and automates the cutting operation for turning vertical pieces of trees with bark into thin pieces of wood. A pair of transport rolls that sandwich and transport the vertically divided pieces, and a support stand and a roll cutter that are arranged to sandwich the vertically divided pieces being transported:
Among the conveyance rolls, one roll has a U-shaped groove that supports the skinned surface of the vertically divided piece, and the other roll has a V-shaped groove that supports the split surface of the vertically divided piece: the support base The U-shaped groove that supports the skinned surface of the vertically divided piece extends in the conveying direction, and
A recess is formed at the midway point of the shaped groove and is separated from the skinned surface of the vertically divided piece with a gap; It is equipped with an intermediate blade that cuts the split surface of the vertically divided piece into a flat surface between the blade and one double-edged blade, and a cutting blade that cuts the vertically divided piece into two in the width direction in the middle of the intermediate blade. It is in.

Also, what was configured as a second means?

A pair of transport rolls that sandwich and transport a vertical split piece of a tree with bark; a support stand and a roll cutter arranged to sandwich the vertical split piece being transported; and a single bevel roll; , one roll has a U-shaped groove that supports the skinned surface of the longitudinally split piece, and the other roll has a V-shaped groove that supports the split surface of the longitudinally split piece; A U-shaped groove for supporting the skinned surface of the roll cutter is provided extending in the conveying direction, and a recess is formed in the middle of the U-shaped groove to be recessed with a gap from the skinned surface of the vertically divided piece; teeth.

A double-edged blade that is arranged to face the recess and cuts both sides of the vertically divided piece; an intermediate blade that cuts the divided surface of the vertically divided piece into a flat surface between the two double-edged blades; and a cutting blade that cuts the vertically divided piece into two in the width direction; the chamfering roll chamfers both sides of the skin of the strip obtained by dividing the vertically divided piece into two with the roll cutter. The point is that it is equipped with a tapered blade for cutting.

〔Example〕

An embodiment of the present invention will be described in detail below based on the drawings.

(Overall Configuration) Referring to FIG. 1, in order to explain the conveyance direction of the vertically divided pieces, the conveyance guide table 6 has a plurality of guide grooves 7 for guiding the vertically divided pieces 3 in the conveying direction. It forms three stripes.

The set of conveying roll means 8 constitutes a pair of upper and lower conveying rolls 9.10 that sandwich and convey the vertically divided piece 3, and each roll is driven and rotated in synchronization in the direction of the arrow shown in the figure by a support shaft 11.12. be done.

The lower conveyance roll 10 is formed with a plurality of U-shaped grooves 10a that support the skinned surface of the vertically divided pieces 3, corresponding to the guide grooves 7,
In the example shown in FIG. 0, in which a plurality of V-shaped grooves 9a supporting the chevron-shaped divided surfaces 3b of the vertically divided pieces 3 are formed in correspondence with the U-shaped grooves 10a, the upper conveying roll 10 is configured to convey this set. Two sets of roll means 8 are provided in series in the conveyance direction.

Subsequently, a roll cutter 13 and a support stand 14 are placed above and below the vertically divided piece 3 in the middle.

The support stand 14 is supported by an adjustment pole 15 on a base 16 so that its vertical position can be freely adjusted, and has a plurality of U-shaped grooves 17 on the upper surface facing the conveyance direction for supporting the skinned surface of the vertically divided pieces 3 being conveyed. In the example shown in FIG. 9, three stripes are formed, and in the middle of the U-shaped groove 17, a recess 18 is formed which is separated from the skinned surface of the vertically divided piece 3 with a gap.

Above the support base 14, in advance of the roll cutter 13, a guide means 19 is arranged, and the guide means 19 has a guide member 2o located in a direction transverse to the three U-shaped grooves 17.

The roll cutter 13 is disposed facing the recess 18 and is driven and rotated by a support shaft 21 in the direction of the arrow shown in the figure. still,
Details of the blade of the roll cutter 13 will be described later.

Following the roll cutter 13 above the support stand 14,
A deterrent means 22 is arranged. This restraining means includes a sliding piece 23 positioned in a direction crossing the three U-shaped grooves 17.

A spring 25 provided on the rod portion 24 of the restraining means 22
This urges the sliding piece 23 in the direction of the U-shaped groove 17.

After cutting the longitudinally split piece 3 into a flat piece of wood 4 using a roll cutter 13, a chamfering roll 26 cuts both side edges 4a of the skin part of the piece of wood 4 into a chamfer shape while the flat piece of wood 4 is being conveyed. It is located. This chamfering roll 26 is driven and rotated by a support shaft 27 in the direction of the arrow shown in the figure. The details of the blade of the one-chamfer roll 26 will be described later.

Finally, a set of delivery means 30 consisting of a pair of upper and lower delivery rolls 2B, 29 is arranged, and the upper and lower delivery rolls 28.2
The delivery rolls 9 are driven and rotated by support shafts 31 and 32 synchronously in the direction of the arrows shown in the figure, respectively, and have flexible bodies 28a and 29 made of elastic synthetic resin, rubber, or the like.
a, which elastically clamps and delivers the cut piece of wood 4. In the example shown in FIG. 1, two sets of the sending means 30 of this negative set are provided in series in the conveying direction.

(Specific structure and operation) When the vertically divided piece 3 is guided to the guide groove 7 of the conveyance guide table 6 so that the skinned surface is located at the bottom of the groove (Fig. 2), and it is projected from the guide groove 7, The protruding end of the vertically divided piece 3 is conveyed while being held between the upper and lower conveying rolls 9°lO of the conveying roll means 8. At this time, the U-shaped groove 10a of the transport roll IO suitably supports the skinned surface of the vertically divided piece 3, and the V-shaped groove 9a of the feed roll 9 supports the vertically divided piece 3.
This is because the chevron-shaped split surface 3b is suitably supported.

The vertically divided piece 3 is smoothly conveyed in a specific position without changing its position by dancing or the like (FIG. 3).

The conveyed vertically divided pieces 3 are guided by the guide member 2 of the guide means 19.
Support stand 1 is restrained from jumping up by 0.
4 into the U-shaped groove 17, and the skinned surface of the vertically divided piece 3 is shaped into a U-shape. It slides along all (Fig. 4).

When reaching the roll cutter 13, the vertically dividing piece 3 is simultaneously cut into two parts by cutting the both side edges 3a and the dividing surface 3b shown in FIG. 10 and cutting the central part 4b in the width direction.

For this reason, the roll cutter 13 has double-edged blades 40 for cutting both side edges 3a of the vertically divided piece 3, and between the double-edged blades 40, the chevron-shaped cut surface 3b of the vertically divided piece 3 is cut into a flat surface. In the example shown in FIG. 1, the cutting blade 42 is provided with an intermediate blade 41 for cutting into two parts, and a cutting blade 42 for cutting the longitudinally divided piece 3 into two in the width direction in the middle of the intermediate blade 41 (FIGS. 5 and 6). These double edge blades 40 and intermediate blade 4
1 and a cutting blade 42 is provided corresponding to one strip of the U-shaped groove 17 of the support base 14, and another cutter means 35, which will be described later, is provided corresponding to the remaining two strips of the U-shaped groove 17. It is provided.

The vertically divided piece 3 cut by the roll cutter 13 is made into two pieces of wood 41, and when sent out from the U-shaped groove 17 of the support base 14, it passes through the sliding piece 23 of the restraining means 22, and the pieces of wood are separated. 4
The standing spines and fibers are removed (Figure 1).

Subsequently, the cotton piece 41 is rolled into the eleventh
Both side edges 4a of the skin shown in the figure are cut into a chamfered shape.

For this purpose, the one-chamfer roll 26 is provided with a tapered blade 38 for cutting the both side edges 4a.
8 constitutes tapered narrow grooves 38a and 38b which chamfer-cut both side edges of each skin part of the two wooden box pieces 41 (Fig. 7). In the example shown in Fig. 0, the taper blade 38 Two taper blades 37 are provided corresponding to one strip of the U-shaped groove 17 of the support base 14, and another taper blade 37, which will be described later, is provided corresponding to the remaining two strips of the U-shaped groove 17.

The cut wood strips 41 are then elastically held between the upper and lower delivery rolls 28, 29 of the delivery means 30 and sent out (FIG. 1).

The sent cotton piece 41 is sent to the next process separate from the machine, and after being cut into a predetermined length, it is processed into a toothpick 39 as shown in FIG.

(Additional Embodiment) Another cutter means 35 of the roll cutter 13 and another tapered blade 37 of the chamfering roll 26 described above.

It is used to cut a material for a candy bar 5 as shown in FIG. 14, rather than a toothpick 39 as in the present invention.

For this reason, the separate cutter means 35 of the roll cutter 13 is
a double-edged blade 33 that cuts both side edges 3a of the vertically divided piece 30;
It is provided with an intermediate blade 34 which cuts the mountain-shaped dividing surface 3b of the vertical dividing piece 3 into a flat surface between the double edge blades 33. Therefore, the purpose is to simply cut the vertically split piece 3 into a flat piece of wood without dividing it into two parts like the cutter means 36 described above.

As shown in FIG. 10, by cutting both side edges 3a and the chevron-shaped split surface 3b of the vertical split piece 3.

A flat piece of wood 4 as shown in FIG. 13 is obtained.

Further, in the two-chamfer roll 26, another tapered blade 37 constitutes one groove-shaped taper blade that cuts both side edges 4a of the skin of the piece of wood 4 in a chamfer shape.

Incidentally, the flat wood piece 4 is as shown in FIG.

With a small force or the like, one end is cut from the skin part 1 in a direction that reduces the thickness of the plate to form an inclined thin wall part 5a, and both side edges of the thin wall part 5a are cut so that the tips thereof are sharp to form a tapered shape. parts 5b, 5b are formed, and the other end is cut with a steep slope in the direction of thinning the plate thickness from the skin part 1 to form a tail slope part 5.
c is formed, thereby forming the candy bar 5.

In the present invention, all of the vertically divided pieces 3 that are conveyed in plurality are divided into cotton pieces 4.
Although the roll cutter 13 and the chamfering roll 26 can be configured to perform cutting on the toothpick wood strip 41, as in this additional embodiment, the number of vertically divided pieces 3 is small (in both cases, one piece is cut into the toothpick wood strip 41). At the same time, the other vertically divided pieces 3 may be cut into pieces of wood for other purposes, such as flat pieces of wood 4 for making candy bars.

〔Effect of the invention〕

As a result of the present invention configured as described above, the vertically divided pieces 3 can be suitably conveyed while being positioned at a predetermined position during conveyance, and
a) Since it is possible to automate the work of cutting the vertically divided pieces 3 into predetermined pieces while being transported and cutting them into two pieces and cutting them into thin pieces of wood 41 such as toothpick material, productivity is improved.
This has the effect of contributing to lower processing costs.

[Brief explanation of the drawing]

FIG. 1 is a front view schematically illustrating the whole of an embodiment of the present invention, FIG. 2 is a longitudinal sectional side view of a conveyance guide table, and FIG. 3 is a longitudinal sectional side view of a conveyance roll means. Fig. 4 is a longitudinal sectional side view of the support stand and guide means, Fig. 5 is a longitudinal sectional front view of the support stand, roll cutter, and chamfering roll, Fig. 6 is a longitudinal sectional side view of the support stand and roll cutter, and Fig. 7 is a longitudinal sectional side view of the support stand and the roll cutter. FIG. 3 is a longitudinal side view of the chamfering cutter. Figures 8 and 9 are explanatory diagrams showing how to vertically divide a tree;
FIG. 10 is an explanatory diagram showing the cutting points of a vertically split piece, FIG. 11 is an explanatory diagram showing the cutting points for dividing a piece of wood into two, and FIG. 12 is a perspective view of a toothpick. Figure 13 is an explanatory diagram showing how to cut a piece of wood for a candy bar;
FIG. 14 is a perspective view of the candy bucket. 1... Leather, 2... Tree, 3... Vertical piece, 3a...
・Both side edges, 3b...Cut surface, 4a...Both side edges, 4
b...Central part, 6...Transportation guide table, 9.10...
Conveyance roll. 9a... ■-shaped groove, 10a... U-shaped groove, 13... Roll cutter, 14... Support stand, 17... U-shaped groove, 1
8... Recessed portion, 20... Guide member, 23... Sliding piece, 26... Chamfering roll, 28.29... Delivery roll, 36... Cutter means, 38... Taper blade, 39
···toothpick. 41...Strips of wood. Figure 7 Figure 2

Claims (1)

[Scope of Claims] 1. A pair of transport rolls that sandwich and transport a vertical split piece of a tree with bark, and a support stand and a roll cutter that are arranged to sandwich the vertical split piece being transported: Among the rolls, one roll has a U-shaped groove that supports the skinned surface of the vertically split piece, and the other roll has a V-shaped groove that supports the split surface of the vertically split piece; a U-shaped groove that supports the skinned surface of the vertically divided piece extends in the conveyance direction, and a recess that is separated from the skinned surface of the vertically divided piece with a gap in the middle part of the U-shaped groove is formed; The roll cutter is arranged to face the recess, and includes double edge blades that cut both side edges of the vertically divided piece, an intermediate blade that cuts the split surface of the vertically divided piece into a flat surface between the both edge blades, and an intermediate blade that cuts both sides of the vertically divided piece. An apparatus for manufacturing thin pieces of wood such as Tsumeage technique material, comprising: a cutting blade that cuts the vertically divided piece into two in the width direction at the middle of the blade; 2. A pair of transport rolls that sandwich and transport the vertical split pieces of a tree with bark, a support stand and a roll cutter arranged to sandwich the vertical split pieces being transported, and a chamfering roll; the transport rolls One of the rolls has a U-shaped groove that supports the skinned surface of the vertically split piece, and the other roll has a V-shaped groove that supports the split surface of the vertically split piece; U that supports the skinned surface of the split piece
The U-shaped groove extends in the conveying direction, and a recess is formed in the middle of the U-shaped groove to be separated from the skinned surface of the vertically divided piece with a gap; the roll cutter is arranged opposite to the recess. A double-edged blade cuts both edges of the vertically divided piece, an intermediate blade cuts the split surface of the vertically divided piece into a flat surface between the two edged blades, and a vertically divided piece is cut in the width direction between the intermediate blades. a cutting blade that cuts the strip into two parts; the chamfering roll includes a tapered blade that cuts both sides of the skin of the strip obtained by dividing the longitudinally split piece into two by the roll cutter in a chamfer shape; An apparatus for manufacturing thin pieces of wood such as toothpick material, characterized in that: