JPH0551865A - Sealing apparatus for suction-type placing table of cutting machine - Google Patents

Abstract

PURPOSE:To enable sure sealing of the subject table by placing a cutting object on a suction-type placing table, cutting to a prescribed shape, rotating a roller in the winding direction interlocked with the relative motion of the cutter and shielding the suction of outer atmosphere through the cut part with the delivered sheet. CONSTITUTION:A cutting object 6 placed on a cutting support face 4 formed on the top of an air-passing surface planted with bristles is sucked and held with a suction box 3 and cut to a prescribed shape with a cutting apparatus 10. A roller 27 is driven in a state interlocked with the motion of the cutting apparatus 10 relative to the suction table 9 and the suction of outer atmosphere through the part cut with the cutting apparatus 10 is shielded with the delivered sheet 28 without causing the shift of the cutting object.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cutting a flexible sheet-shaped material to be cut such as a knitted cloth or a cloth according to a desired pattern. The present invention relates to a device that seals a cut portion in a device that suction-fixes a material and cuts the material to be cut by moving a cutter blade.

[0002]

2. Description of the Related Art In order to simultaneously cut a large number of flexible cut materials such as knitted cloth and cloth and synthetic resin sheets, the cut material is sucked using an air permeable bristle body. A fixing cutting device has been proposed by Japanese Patent Publication No. 60-48319 and Japanese Patent Publication No. 62-50280.

In the above-mentioned cutting device for the material to be cut, the air-permeable bristles are arranged side by side so as to be supported by the endless running body and moved on the suction box, and the bristles support the cutting support surface on the suction box. Form a cutter blade that is movable in any direction above the cutting support surface, place the material to be cut on the cutting support surface in a laminated form, and place it on the surface of the bristle body from the suction box. While being sucked and fixed onto the bristle body by the applied suction force, the cutter blade is moved in this state under preset conditions to cut the material to be cut into a predetermined shape.

However, in this type of cutting device, the outside air is sucked through the portion cut by the cutter blade, and as the material to be cut is cut, the suction fixing force of the cutting support surface decreases. There was a problem. Therefore, in order to deal with the above problem, for example, Japanese Patent Publication No. 63-2
As disclosed in Japanese Patent No. 8759, an upper surface of a material to be cut stacked on the cutting and supporting surface is covered with a non-air-permeable cover to ensure that the material to be cut is attracted and held on the cutting and supporting surface. In order to close the upper surface part of the cut material with a sheet, a roller energized by a rewinding spring is arranged so as to accompany the cutter blade, and as the cutter moves. It is known that a sheet wound around a roller is pulled out against the tension of a rewinding spring to close the upper surface of the cut material.

[0005]

However, in the case where the sheet is closed on the upper surface of the material to be cut, the tension of the spring for rewinding the roller becomes stronger as the sheet is pulled out. The sheet has to be pulled out against the tension of the spring, which causes the material to be cut that has been closed at a certain angle to move, and the sheet to float from the material to be cut, so that the outside air is sucked from here. There was a problem that I would do.

The present invention has been proposed in view of the above problems, and an object of the present invention is to provide a sealing device for a suction type mounting table that can be securely closed without floating on the upper surface of a cut material. It is what

[0007]

In order to achieve the above object, a sealing device for a suction type mounting table in a cutting machine according to the present invention firstly arranges air permeable bristles on a suction box, Forming a suction type mounting table with a cutting support surface formed on the upper surface of the air-permeable bristle body, and arranging a cutter blade movable in any direction above the cutting support surface of this suction type mounting table, A material to be cut is placed on the cutting support surface, and while being sucked and fixed on the bristle body by a suction force, the material is cut into a predetermined shape by a cutter blade and the suction type mounting table is oriented in the longitudinal direction. In the cutting machine which is adapted to move, a sheet feeding device for closing the cut portion of the material to be cut is arranged on the upper surface of the cut portion, and the feeding device is configured such that one end of the sheet is cut into the cut portion of the material to be cut. Side to the end of the suction-type mounting table, and seat The other end is connected to a roller arranged so that when the cutter blade is moved by the drive motor in the longitudinal direction of the suction type mounting table, the cutter blade is fed and rotated in association with the movement of the cutter blade. To do.

In order to control the feeding and winding rotation of the roller, a cord is stretched over both ends of the suction type mounting table in the longitudinal direction, and a rotation transmission mechanism is provided at the shaft end of the roller. The rotation transmission mechanism is connected by a drive motor to a drive roller that rolls in conjunction with the relative movement of the cutter blade and the rope when the cutter blade moves in the longitudinal direction of the suction type mounting table. It is characterized by having done.

[0009]

Operation: When the material to be cut is stacked on the cutting support surface of the suction type mounting table having the air-permeable bristle body and suction negative pressure is applied to the cutting support surface via the suction box, The cutting material is firmly adsorbed and held on the cutting support surface. Next, the material to be cut is cut into a desired shape by a cutter device, and the cutter blade is moved from one side of the suction mounting table to the other.

The roller is forcibly rotationally driven in the winding direction in association with the relative movement of the cutter blade with the suction type mounting table, and the sheet is paid out from the roller in a tensionless state. It prevents the outside air from being sucked from the part that is adsorbed by the material to be cut and cut by the cutter. Thus, when the cutting is completed and the cutter moves from the other side of the suction type mounting table to the one side, the roller moves in the winding direction in association with the relative movement of the cutter blade along with the movement of the suction type mounting table. It is rotationally driven and the sheet is wound around the roller.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an outline of a cutting machine provided with a sealing device for a suction type mounting table, and FIG. 2 is a vertical side view thereof, in which reference numeral 1 indicates the cutting machine as a whole. This cutting machine 1
Are arranged horizontally on the base frame 2 and are arranged so as to run endlessly on the three suction boxes 3, 3, 3 and form a cutting support surface 4 on the suction boxes 3, 3, 3. The bristle body 5 and the suction box 3/3/3 are arranged at the lower part of the suction box 3/3/3.
A suction type mounting table 9 formed by a suction duct 7 and a suction device 8 for generating a suction force for fixing the material 6 to be cut such as a knitted fabric or a knitted fabric through the cutting support surface 4, and the cutting support. Surface 4
And a cutter device 10 arranged so as to be movable in any direction on the upper part of the.

The suction boxes 3, 3, 3 are formed in a rectangular shape that matches the length and width of the effective cutting space. Endless chains are arranged along the length direction of the base frame 2 on both sides in the width direction of the suction boxes 3, 3 and 3, and a large number of receiving plates whose both ends are supported by both chains are provided on the outer periphery of the both side chains. It is fixed and is Japanese public Sho 63-287
The endless track type conveyor having a well-known structure as disclosed in Japanese Patent No. 59, etc. is formed, and the bristles 5 are arranged on the upper surface of each receiving plate to form the cutting support surface 4.

The cutter device 10 comprises an X-axis direction moving part 12 and a Y-axis direction driving part 13, and the X-axis direction moving part 12 is rotatable between both ends of the suction type mounting table 9 in the longitudinal direction. A belt 16 with a moving blade is wound around the gears 14 and 15 provided on the
While connecting the lower end of the block 17 to a part of
Gear 1 on one end side around which a belt 16 with a moving blade is wound
5 and an output shaft 19 of an electric motor (driving motor) 18 are connected to each other by a belt 20 with a blade for driving, and by controlling the rotation direction and speed of the driving motor 18, By using the bladed belt 16 and the driving bladed belt 20, the cutter blade 21 can be moved in the longitudinal direction of the suction type mounting table 9, that is, in the X-axis direction.

The Y-axis direction driving unit 13 is the suction type mounting table 9 described above.
X-axis direction moving parts 12 and 12 provided in the width direction of the
The guide bridge 22 is mounted over the space, and the cutter blade 21 is guided by the guide bridge 22 and moved in the Y-axis direction by a Y-axis direction driving motor (not shown). Belts (strands) 23, 23 are stretched above the belt 16 for moving blades substantially in parallel therewith, and the moving portion 12 in the X direction is arranged above the respective belts 23, 23. ..

In addition, as shown in FIGS. 3 and 4, the X-axis direction moving parts 12 and 12 have a pair of upper and lower parts, respectively, in front of and behind the inside of the block 17 whose lower end is connected to the moving belt 16 having a blade. Guide rollers 24 and 25 are provided, and belts (cord) 23 and 23 stretched substantially in parallel with the moving bladed belt 16 are wound around the guide rollers 24 and 25. Cutter blade 2 of X-axis direction moving part 12 ・ 12
As shown in FIGS. 1 to 4, roller support brackets 26 are formed on the side surface on the first side so as to project therefrom.

A roller 27 is pivotally supported at the tip of the roller support brackets 26, 26.
In FIG. 7, the flexible sheet 28 is forcibly fed out and wound up. Roller support bracket 26.2
A pulley 30 is fixed to a shaft 29 at one end pivotally supported by 6, and the pulley 30 and the guide roller 24 rolled by the belt 23 are connected by a gear transmission mechanism 31 and a belt transmission mechanism 32. As a result, the roller 27 is rotationally driven in a direction for feeding / winding the sheet 28, and the sheet 28 being fed / rolled is operated.
The end portion of the sheet is fixed to the arms 33, 33 provided upright from the base frame 2 on the side where the material to be cut 6 is cut by the cutter blade 21 to form a sheet feeding device 34.

The operation of the suction-type mounting table sealing device in the cutting machine configured as described above will be described below. First,
1. A cloth (cutting material) 6 in a predetermined number of layers is supplied from a right side in FIG. 1 on a cutting support surface 6 formed by a group of bristle bodies 5 on the suction boxes 3, 3, 3 by a spreading machine. To do.

At this time, when the suction action of the suction boxes 3, 3, 3 is stopped and the chain (not shown) is driven,
The receiving plate to which the bristles 5 are attached rotates counterclockwise on the suction boxes 3, 3, 3, and the cloth 6 is transferred to the effective cutting space on the cutting support surface 4. When the suction force is applied to the suction boxes 3, 3, 3, the fabric 6 thus supplied onto the effective cutting space is firmly fixed on the cutting support surface 4 by suction.

After that, when the cutter device 10 is operated to cut the cloth 6 into a predetermined shape, the cutter device 1 is cut.
0 is gradually moved in the X-axis direction (from left to right in the figure) via the driving blade belt 20 and the moving blade belt 16 by the drive of the drive motor 18. When the X-axis direction moving unit 12 is moved and the guide roller 24 is rotationally driven by the belt 23, this rotation is transmitted to the roller 27 via the gear transmission mechanism 31 and the belt transmission mechanism 32, and the roller 27 passes the sheet 28. The sheet 20 is fed from the roller 27 by being rotationally driven in a feeding direction corresponding to the movement amount of the cutter device 10.

The sheet 28 that has been fed out has a cutter blade 21.
It is prevented that the portion cut by (4) is covered and the outside air is sucked from the cut portion to reduce the suction fixing force of the bristle body 5 of the cloth 6 on the cutting support surface 4. When the cutter blade 21 is moved from the right side to the left side of the suction type mounting table 9 by the reverse rotation of the drive motor 18 after the cutting by the cutter blade 21 is completed, the guide roller 24 is reversed. Is rotationally driven by the belt 23, and this rotation is transmitted to the roller 27 via the gear transmission mechanism 31 and the belt transmission mechanism 32, and the roller 27 rotates in the direction in which the sheet 28 is wound up. It is accurately wound on 27.

In the above embodiment, the X of the cutter device 10 is
A belt 16 with a blade for movement is wound around the gears 14 and 15 rotatably provided between the both ends in the longitudinal direction of the suction-type mounting table 9, and the belt 16 with a blade for this movement is attached. The lower end of the block 17 is connected to a part of the belt 16, and the gear 15 on one end side around which the belt 16 with a moving blade is wound.
The output shaft 19 of the electric motor (driving motor) 18 is connected by a belt 20 with a blade for driving, but the present invention is not limited to this. It is needless to say that the motor 18 can be provided in the X-axis direction moving section 12 and the guide rollers 24 and 25 can be directly rotated to move the cutter device 10 in the X-axis direction.

Further, although the suction type mounting table 9 is movable in the above-mentioned embodiment, it goes without saying that the present invention can also be applied to a fixed type mounting table 9. is there.

[0023]

As described above, according to the sealing device for the suction type mounting table in the cutting machine according to the present invention, the material to be cut adsorbed and held on the cutting support surface through the suction box is cut by the cutter blade. When the material to be cut is cut into a desired shape with, the roller is driven to rotate in the winding direction in conjunction with the movement of the cutter blade relative to the suction type mounting table. Since it is designed to prevent the suction of outside air from the part cut by the cutter,
There is an advantage that the sheet to be closed can be surely closed without floating on the upper surface of the cut material as is conventionally done.

Moreover, since the rotation of the feeding and winding of the roller is positively driven, no tension acts in the roller direction on the sheet for closing the material to be cut. There is also an advantage that the shifting movement of the cutting material can be prevented and precise cutting can be performed.

Further, the drive motor for driving the cutter blade in the X-axis direction or the roller in the feeding / winding direction is interlocked with the relative movement between the suction type mounting table and the cutter blade accompanying the movement of the cutter blade by the motor. Since it is driven to rotate and no special drive source for feeding or winding the sheet is required, the structure can be simplified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing an outline of a cutting machine equipped with a sealing device for a suction type mounting table.

FIG. 2 is a side view showing an outline of a cutting machine including a sealing device for a suction type mounting table.

FIG. 3 is a plan view of a main part.

FIG. 4 is a side view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cutting machine 3 ... Suction box 4 ... Cutting support surface 5 ... Bristle body 6 ... Cut material 9 ... Suction-type mounting table 21 ... Cutter blade 23 ... Rope (belt) 27 ... Guide roller 28 ... Sheet 34 ... Sheet feeding device

Claims (2)

[Claims] 1. A suction type mounting table in which air permeable bristles are arranged side by side on a suction box, and a cutting support surface is formed on the upper surface of the air permeable bristles, and the suction type mounting stage is formed. A cutter blade that is movable in any direction is placed above the cutting support surface, and a material to be cut is placed on the cutting support surface, and the cutter is sucked and fixed on the bristle body by suction force. In a cutting machine that moves in a longitudinal direction on a suction type mounting table while cutting it into a predetermined shape with a blade, a sheet feeding device for closing the cut portion of the material to be cut is arranged on the upper surface of the cut portion. The sheet feeding device is such that one end of the sheet is fixed to the end of the suction type mounting table on the side of the already cut portion of the material to be cut, and the other end of the sheet is driven by the cutter motor in the longitudinal direction of the suction type mounting table. When moving with respect to, repeat with the movement of this cutter blade. Sealing device of the suction type placing table at the cutting machine, characterized in that linked to disposed the roller to rotate out-winding. 2. Rolling-out and winding-up rotation control of the roller,
A cord is stretched across both ends of the suction type mounting table in the longitudinal direction, a rotation transmission mechanism is provided at the shaft end of the roller, and the rotation transmission mechanism is driven by a drive motor so that the cutter blade is attached to the suction type mounting table. 2. The cutting machine according to claim 1, wherein the cutter blade is connected to a drive roller that rolls in association with relative movement of the cutter blade and the cord when moving in the longitudinal direction. Sealing device for suction type mounting table.