JP2853022B2 - Tatami mat 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 tatami mat cutting machine, and more particularly to a tatami mat cutting machine provided with a tatami mat guiding device for centering a tatami mat when sending a tatami mat having a beard projecting to both sides.

[0002]

2. Description of the Related Art As shown in FIG. 8, in a tatami mat woven with rushes and wefts serving as wefts, a woven portion 91 woven through a warp and protruding from both sides of the woven portion 91. There is an ear part called a mustache part 92 formed at the end of the rush.

The beard portion 92 is unnecessary when the tatami table 9 is attached to the tatami floor, so it must be cut off.
The length of the tatami mat 9 is continuously long in the longitudinal direction, and is usually longer than 10 tatami mats.

[0004] Therefore, the mustache portion of such a continuous tatami table
The tatami table is cut to the length of one tatami while cutting 92, and used.

As shown in FIG. 1, a conventional tatami table cutting machine used for cutting a tatami table guides a tatami table 9 placed in a receiving basket 8 while centering the tatami table 9 by regulating the left and right (width direction) positions. A cutting device having a guide device 7 to be moved, a tatami surface feeding device 2 including a feed roller 21 and a pressing roller 22 arranged vertically so as to sandwich the tatami surface table 9, and a cutting blade 3 provided at an outlet side of the tatami surface feeding device 2. It is arranged between the device and the guiding device 1 and the tatami surface feeding device 2, and the beard portion 92 of the tatami surface 9
And a whisker cutting device 4 composed of a rotary blade for cutting the blade.

The feed roller 21 and the rotary blade of the beard cutting device 4 are driven by a main motor 24,
An encoder 5 for measuring the length of the tatami table 9 to be sent is connected to one shaft end of the 22 and a measurement signal generated by the encoder 5 is sent to a control device (not shown).

Further, a cutting blade 3 for cutting the tatami table 9 in the width direction is provided at the exit side of the tatami table feeding device 2.
The cutting blade 3 can reciprocate on the blade guide 32 left and right (in the width direction) and is driven by the cutting motor 31. It should be noted that the measurement signal from the encoder 5 is counted, and when the set length is reached, the main motor 24 is stopped, and the control device is controlled to start the cutting motor 31.

[0008] As a guide device for positioning the left and right of the tatami table 9, the one proposed in Japanese Patent Laid-Open No. 6-206198 has been conventionally known.

[0009]

As shown in FIGS. 6 and 7, the guide device 7 proposed in Japanese Patent Laid-Open No. 6-206198 has a horizontal rotating shaft 71 which is perpendicular to the transport direction of the tatami mat 9 and has an interval. Two bosses 72 each having a truncated conical or cylindrical shape are attached to each other so as to face each other, and three guide vanes 73 having an inclined guide portion 74 and a top portion 75 are radially attached to each of the bosses 72. The guide vanes 73 rotate separately into the left and right mustache portions 92 of the tatami table 9. At this time,
On both sides of the woven section 91 through which the warp threads of the tatami mat 9 pass, the guide blades
Sliding along the inclined guide part 74 of 73
To the center.

In such a conventional guide device 7, as the tatami table 9 is fed, as shown in the side view of FIG. 7B, the top portion 75 of the guide blade 73 is moved to the beard portion 92 at the position D. The beard portion 92 starts to contact and begin to divide, and slides to the root B while moving the contact point with the inclined guide portion 74.

The distance d between the position D at which the top 75 of the guide blade 73 starts to divide and the base B of the guide blade 73 already divided.
Is larger than the interval BB between the adjacent guide vanes 73, that is, the length b of the arc BB. for that reason,
The whiskers 92 are pushed in between the bases B of the guide vanes 73, and the tatami mat 9 is guided in a state where it is loose. Further, when the beard portion 92 is disturbed, the guide blade 73 prevents the movement of the beard portion 92 of the tatami table 9 from being divided.

Since the tatami table 9 is not always the same in the left and right guiding devices 7, the tatami table 9 may meander left and right.

Therefore, the present invention has been conceived to solve the problem of the guide device 7 in such a conventional tatami sheet cutting machine.

[0014]

SUMMARY OF THE INVENTION The present invention relates to a tatami mat comprising a weaving portion formed of rush and weft serving as a weft, and a whisker portion formed at the end of the rush protruding from both sides of the woven portion. In a tatami mat cutting machine that cuts a fixed length by feeding in a longitudinal direction, a core rod, a ring-shaped rotating body fitted into the core rod at intervals, and a guide protruding radially from the rotating body. A tatami surface guide device is provided for centering a tatami surface comprising a plurality of guide rods each having a portion and an introduction portion inclined with respect to the axis. Further, when the guide rod is twisted with respect to the guide part in the rotation direction, centering can be performed smoothly.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a guide device in a tatami surface cutting machine according to the present invention, as shown in FIG. A guide device 1 for guiding while regulating, a feed roller 21 and a press roller 22 arranged vertically so as to sandwich the tatami table 9;
Tatami table feeding device 2, a cutting device 3 provided on the exit side of the tatami table feeding device 2, and a rotary blade disposed between the guide device 1 and the tatami table feeding device 2 to cut a beard portion 92 of the tatami table. And a beard cutting device 4.

As shown in the sectional view of FIG. 2, the guide device 1 comprises a core rod 11 having both ends fixed to the frame 6,
A rotating roller 13 rotatably supported on bearings 12 by a bearing 12 and feeding the woven portion 91 of the tatami mat 9 along the outer periphery thereof, and two ring-shaped rotatably fitted on both outer sides of the rotating roller 13. A rotating body 14, a collar 19 fixed to the core rod 11 on both outer sides of the rotating body 14 to position the rotating body 14, and three or more radially attached radially at equal angles to the ring-shaped rotating body 14. It is constituted by a guide rod 15.

Each guide rod 15 is formed by bending an elastic steel wire of about 1 mmφ or the like, and is shown in FIGS.
As shown in the figure, the mounting portion 16 whose root is fixed to the rotating body 14
And a guide portion 17 which is connected to the mounting portion 16 and is substantially perpendicular to the mounting portion 16 in the radial direction. And an introduction section 18 provided.

The outer diameter of the two ring-shaped rotators 14 is substantially the same as or slightly smaller than the outer diameter of the rotary roller 13. It is set slightly wider than the outside dimensions of 91, and the ring-shaped rotating body 14 is
It rotates with the feed of the tatami table 9. The left and right rotating bodies 14
Can rotate independently, so that the rotating bodies 14
Can be smoothly rotated without being affected by the rotation of the motor.

As shown in FIG. 4, the torsion angle θ of the introduction portion 18 with respect to the core rod 11 is determined by the position E at which the tip of the introduction portion 18 starts to divide into the whisker 92, and the base B of the guide rod 15 already divided. And the distance e between the roots B of the adjacent guide rods 15
That is, it is set to be equal to the length b of the arcs B to B.

Next, the operation of the guide device thus configured will be described.

The tatami mat 9 placed in the receiving basket 8 is pulled out by the tatami mat feeder 2 driven by the main motor 24. During the withdrawal, the tatami table 9 is
Centered by

At the time of this centering, the introduction portion 18 of the guide rod 15 attached to the rotating body 14 of the guide device 1
Is twisted in the rotational direction with respect to the guide portion 17, and as shown in FIG. 4B, the leading end of the introduction portion 18 begins to split at the position E of the beard portion 92 and then tilts. While moving the contact point between the introduced section 18 and the beard section 92, the guide section 17
Divide up. At this time, both sides of the weaving section 91 through which the warp thread of the tatami table 9 passes slide along the inclined introduction section 18 of the guide rod 15 and abut the inside of the guide section 17 to center the tatami table 9. it can.

The position E at which the leading end of the introduction portion 18 starts to divide into the beard portion 92 and the position B at which both sides of the weaving portion 91 come into contact with the inside of the guide portion 17 are substantially the same. Centering can be performed smoothly without the tatami table 9 being loose or lacking between each other. Similarly, when the tatami mat is separated from the guide device 1, the tatami mat can be separated smoothly.

Since the guide device 1 is made of a bar composed of the guide rod 15, the contact resistance is smaller than that of a blade made of a plate, and the guide device 1 can bend slightly, so that centering can be performed smoothly without difficulty. .

(Other Embodiments of the Invention) Guide 1
The shape of the guide rod 15 is not limited to the one shown in FIGS. 3 and 4, but may be a curved one as shown in FIG.

When a thin and flexible wire rod is used as the guide rod 15 of the guide device 1, the angle θ of twisting in the rotation direction with respect to the guide portion 17 is not strict, and even if it is not twisted, Can be provided.

The tatami surface cutting device to which the tatami surface guiding device of the present invention is applied is not limited to the device shown in FIG. 1, but includes various devices such as a guiding device 1, a tatami surface feeding device 2, a cutting device 3, and a whisker cutting device 4. The present invention can be applied to the case where the arrangement order is changed.
Further, in order to feed the tatami table 9 while applying tension thereto, a plurality of horizontal bars are arranged between the receiving basket 8 and the guide device 1, and the tatami table is passed through the tatami table in a zigzag shape between the horizontal bars. It may be.

[0028]

As is clear from the description based on the above embodiment of the present invention, according to the tatami table cutting machine provided with the tatami table guide device of the present invention, since a bar is used for the guide device, contact resistance is reduced. Centering can be performed smoothly.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tatami table cutting machine to which a tatami table guide device of the present invention is applied,

FIG. 2 is a sectional view showing an embodiment of the tatami table guide device of the present invention;

FIG. 3 is a perspective view showing a main part of the tatami table guide device shown in FIG. 2;

FIG. 4 is a plan view (a) of a main part of the tatami surface guide device of the present invention.
And side view (b),

FIG. 5 is a side view showing another embodiment of the tatami table guide device of the present invention;

FIG. 6 is a perspective view showing an example of a main part of a conventional tatami table guide device;

FIG. 7 is a plan view (a) and a side view (b) showing an example of a main part of a conventional tatami surface guide device;

FIG. 8 is a perspective view showing a tatami table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide apparatus 11 Core rod 12 Bearing 13 Rotary roller 14 Ring-shaped rotating body 15 Guide rod 19 Collar 2 Tatami table feeder 21 Feed roller 22 Holding roller 3 Cutting device 32 Blade guide 4 Beard cutting device 5 Encoder 6 Frame 8 Basket 9 Tatami table 91 Weaving section 92 Beard section

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B26D 7/06 B26D 1/14

Claims (2)

(57) [Claims] 1. A tatami mat consisting of a weaving portion formed of rush and weft serving as a weft and a whisker portion formed at an end of the rush protruding from both sides of the weaving portion is sent in a longitudinal direction to a fixed length. In a tatami table cutting machine that cuts each, a core rod, a rotating body fitted into the core rod at an interval,
A tatami table cutting device for centering a tatami table comprising a plurality of guide rods each having a guide portion projecting radially from the rotating body and an introduction portion inclined with respect to an axis. . 2. The tatami sheet cutting machine according to claim 1, wherein an introduction portion of the guide rod is twisted in a rotational direction with respect to the guide portion.