JP7296147B1 - Cutting machine and cutting method - Google Patents

Abstract

Kind Code: A1 A material is cut into predetermined dimensions and at desired intervals by half-cutting without generating material to be discarded (residue). SOLUTION: In a cutting machine 10 for half-cutting by a single blade 32, a base material D such as rubber is attached to a temporary base material d0, and a feed roller 40 moves the temporary base material along a table 70 of a cutting machine body 10. A substrate D' integral with d0 (such as double-sided tape) is fed out. On the other hand, by the lamination mechanism 60, the pulling roller 50 feeds the base material d1 such as release paper to the table 70, and the base material D'' mounted on the base material d1 along the table 70 is cut by the single blade 32 into a predetermined shape. Half-cutting is performed at a pitch P. Then, by making the amounts of rotational driving of the feed roller 40 and the tension roller 50 different and increasing the feed amount of the base material d1, the gap M are formed at predetermined intervals. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a cutting machine for cutting a long material wound in a roll, and more particularly to a cutting machine capable of half-cutting.

For example, in a cutting machine that cuts out materials such as rubber and resin films wound in a roll, the material is pasted on the surface of a sticky base material (release paper), and the material is cut by a roll feeder (roller). It is sent out to the desired location and cut out by half-cutting. Then, the base material is taken out and wound up in a state in which the die-cut material is adhered (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2001-219394

In the cutting machine described above, while it is possible to obtain the material attached to the surface of the base material at desired dimensions and intervals, it is essential to take out and wind up the cut material to be discarded (residue). .

Therefore, it is required to be able to cut the material into predetermined dimensions and at desired intervals by half-cutting without generating material to be discarded (residue).

A cutting machine, which is one aspect of the present invention, half-cuts a long material (such as a roll-shaped material) with a single blade to make the material into a predetermined size and to provide a desired space between the materials. The cutting machine includes a feeding roller that feeds out a long material attached to the temporary base material by adhesion, a lamination mechanism that mounts the fed material on the surface of the base material, and a base material. It is equipped with a single blade for half-cutting the material mounted on the material on the cut surface, and a tension roller for feeding the base material and carrying out the half-cut material attached to the base material. Here, "a long material attached to a temporary base material by adhesion" means that the material is attached to the temporary base material due to the adhesiveness of either the temporary base material or the material (or both). Either the substrate or the material (or both) should be adhesive.

In the present invention, a predetermined gap is provided between the half-cut materials on the surface of the base material by increasing the amount of base material feed by the tension roller compared to the material feed amount by the feed roller to the temporary material. is possible. By the lamination mechanism, the material mounted on the base material can be configured so as to be slidable with respect to the material before half-cutting, and can be put in a bonded state after half-cutting. For example, it is possible to attach the material on the pulling roller side of the single blade to the surface of the base material by applying or contacting a member such as elastic foam from above the material when cutting with the single blade. be. Cutting with a single blade may be performed by waiting until the substrate feeding by the pulling roller is completed.

For example, it is possible to half-cut the material at a predetermined pitch and increase the amount of substrate feeding by the tension roller each time half-cutting is performed for a predetermined number of times. When the tension roller feeds a larger amount of substrate, it is possible to time the movement of the feed roller and single blade to coincide with the end of the movement of the tension roller.

A cutting method, which is another aspect of the present invention, sends out a long material attached to a temporary base material by adhesion, sends out the base material, mounts the sent material on the surface of the base material, and A cutting method that half-cuts the material mounted on the on the cutting surface with a single blade and carries out the material that has been half-cut and attached to the base material. is increased to provide a predetermined spacing between the half-cut materials on the substrate surface.

According to the present invention, the material can be cut into predetermined dimensions and at desired intervals by half-cutting without generating material to be discarded (residue).

1 is a schematic configuration diagram of a cutting machine according to the present embodiment; FIG. FIG. 4 is a schematic configuration diagram partially showing the vicinity of the feed roller of the cutting machine main body from the side; FIG. 3 is a schematic configuration diagram partially showing the vicinity of a lamination mechanism of the cutting machine main body from the side. FIG. 2 is a schematic configuration diagram showing a tension roller and its surrounding mechanism; It is the figure which showed the operation|movement timing chart of a feed roller, a tension roller, and a single blade.

A cutting machine according to the present embodiment will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a cutting machine according to this embodiment.

The cutting machine 10 includes a cutting machine main body 20 provided with a blade portion 30 , feeds a roll-shaped material 100 to the cutting machine main body 20 , and cuts (cuts) the raw material 100 with the blade portion 30 . Then, the cut material (hereinafter referred to as product material) 200 is wound around a reel 210 . The material 100 is made of rubber, resin film, or the like here.

The cutting machine 10 has a roll material 100, a roll temporary base material 120 wound around a reel 130, and a roll base material (hereinafter referred to as release paper) 160 wound around a reel 170. ing. At least one surface of the temporary base material 120 is made of an adhesive material, and here, it is configured as a double-sided tape with a backing paper attached to the bottom surface. Further, the base material 160 is configured as a release paper (release paper) here.

The cutting machine main body 20 has rollers (hereinafter referred to as feeding rollers) that pull out the rolled material 100 and the temporary base material 120 toward the cutting machine main body 20 side (downstream side) and feed them to the blade portion 30 side (downstream side). ) 40 is provided. The roll-shaped material 100 is attached to the surface of the temporary base material 120 by the temporary attaching mechanism 80 composed of a pair of rollers, and moves along the surface of the table 70 of the cutting machine main body 20 . A backing plate (not shown) or the like is mounted on the table 70, and its surface 70S is configured as a cutting surface.

Here, the width of the material 100 and the temporary base material 120 is the same or the width of the temporary base material 120 is narrower, and the material 100 and the temporary base material 120 are integrally formed into one sheet and conveyed. Below, the raw material 100 and the temporary base material 120 that are unwound and conveyed are represented by the code "D" and the code "d0", respectively, as necessary. Further, the material 100 that is conveyed while being attached to the surface of the temporary base material 120 is indicated by the symbol "D'" as necessary. Note that instead of attaching the material 100 to the adhesive temporary base material 120 , a non-adhesive temporary base material 120 may be attached to the adhesive material 100 . In this case, the adhesive material 100 may be narrower than the temporary base material 120 .

The feed roller 40 includes a lower fixed roller 40A and an upper movable roller 40B that can move in the vertical direction. . The feed roller 40 is driven and controlled by an actuator such as a servomotor (not shown). On the other hand, the roll-shaped base material 160 wound on the reel 170 is delivered to the cutting surface 70S of the table 70 via the rollers 91-95. The base material 160 has the same dimensions (width) as or a wider width than the material 100 that is made adhesive by the temporary base material 120, and hereinafter, the base material 160 is referred to as "d1" as necessary. Represented by It should be noted that the non-adhesive material 100 may be attached to the adhesive base material 160 . In this case, the width of the adhesive substrate 160 should be wider than the material 100 .

The cutting machine main body 20 is provided with a stacking mechanism 60 . The lamination mechanism 60 peels off the backing paper from the temporary base material (double-sided tape) d0 to which the material D' is attached, and attaches the material D' to the surface of the base material d1 so that it can be attached. It has a structure that overlaps with The material D' is conveyed along the cutting surface 70S while being mounted on the base material d1. In the following, the material D after bonding is represented by the symbol "D"" as necessary.

FIG. 2 is a schematic configuration diagram partially showing the vicinity of the feed roller 40 of the cutting machine main body 20 from the side. FIG. 3 is a schematic configuration diagram partially showing the vicinity of the stacking mechanism 60 of the cutting machine main body 20 from the side. However, the thickness of the material D is exaggerated here. Also, FIG. 2 shows a state in which the movable roller 40B is retracted upward.

The blade portion 30 has a single blade (for example, a Thomson blade) 32 (see FIG. 2), and is attached along the width direction (perpendicular to the conveying direction) of the material D″. is attached to the side surface of the single blade 32. The blade portion 30 can be vertically moved by a drive mechanism (for example, a crank mechanism or a hydraulic machine) (not shown). , and ascends and descends at predetermined timings.

A control unit 85 (see FIG. 1) that controls the vertical movement of the blade portion 30 can adjust the position of the lowest point of the blade portion 30 so that the position of the lowest point of the single blade 32 coincides with the surface of the substrate d1. The vertical movement of the blade portion 30 is controlled so as to do so. As a result, half-cutting is performed in which only the material D is cut without cutting the base material d1.

As shown in FIG. 3, the stacking mechanism 60 includes a pair of slanted portions 62, 64 which form slanted surfaces 62S, 64S facing each other at a predetermined distance, and which are both knife-edge shaped. A gap CP is formed along the surface (cut surface 70S) of the table 70 between the inclined portions 62 and 64 .

When the material D' conveyed by the feed roller 40 is conveyed to the vicinity of the gap CP, the backing paper is peeled off from the temporary base material d0 composed of the double-sided tape, as described above. The backing paper is peeled off from the tip portion 62T of the inclined portion 62 in a warping direction, and wound by a reel 150 (see FIG. 1). Hereinafter, a part (mounting paper) of the temporary base material d1 peeled off from the material D' is represented by a symbol "d2" as necessary.

A portion d2 of the temporary base material separated from the material D' passes between the inclined portions 62 and 64 and leaves the table 70. As shown in FIG. On the other hand, the substrate d1 conveyed to the table 70 side is conveyed to the surface side of the table 70 through between the inclined portions 62 and 64 . Then, the material D' to be half-cut, which moves along the cutting surface 70S, is mounted on the surface of the base material d1. Such transfer (stacking) of the material D' to the base material d1 is performed in the gap CP formed near the half-cut position (hereinafter referred to as the cutting position) G by the single blade 32 .

Here, the material D' immediately before being half-cut is mounted on the surface of the adhesive base material d1, but the base material d1 is in a slidable state with respect to the material D'. The elastic foam 33, which moves up and down together with the single blade 32, presses the material D' against the surface of the base material d1, so that the half-cut material D'' is attached to the base material d1, and then transported integrally. be done.

Referring to FIG. 1, the tension roller 50 holds the half-cut material D″ while rotating about its axis, and feeds the material D″ to the reel 210 side (downstream side) and carries it out. At the same time, the pulling roller 50 sends out the substrate d1 wound on the reel 170 toward the laminating mechanism 60 and the table 70. As shown in FIG. The material D″ is taken up by a reel 210 by a take-up mechanism (not shown). , is wound on a reel 150 by a winding mechanism (not shown).

FIG. 4 is a schematic configuration diagram showing the tension roller 50 and its surrounding mechanism. Here, the drawing seen from the downstream side in the conveying direction of the material D″ is shown.

The pulling roller 50 includes a pair of vertically movable movable rollers 50A1 and 50A2, and a fixed roller 50B facing the movable rollers 50A1 and 50A2. The movable rollers 50A1 and 50A2 press the material D″ from the upper surface side, and the fixed roller 50B supports the material D″ from the back surface side (base material d1 side), thereby applying appropriate tension to the material D″.

A shaft 55 that supports the movable rollers 50A1 and 50A2 is connected to power transmission mechanisms 58A and 58B arranged on both sides thereof. The power transmission mechanisms 58A, 58B are configured here by rack and pinion gears. The movable rollers 50A1 and 50A2 move in the vertical direction along with the movement of the racks of the power transmission mechanisms 58A and 58B, respectively. Stoppers 54A and 54B are provided above the power transmission mechanisms 58A and 58B, respectively, to limit the movement of the movable rollers 50A1 and 50A2.

The servomotor 56 is connected to the pinion gear of the power transmission mechanism 58A and is configured as an actuator that drives both the two power transmission mechanisms 58A and 58B. Specifically, the power transmission mechanisms 58A and 58B are connected to both ends of the connecting shaft 52 parallel to the shaft 55, and the rack of the power transmission mechanism 58B is driven by the servomotor 56 to move in the same manner as the rack of the power transmission mechanism 58A. move up or down by the amount.

With such a connecting mechanism, the movable rollers 50A1 and 50A2 are vertically moved integrally by one servomotor 56 . Further, the servo motor 56 vertically moves the movable rollers 58A1 and 58A2 according to torque control in order to apply an appropriate tension to the half-cut material D″. be.

In the cutting machine 10 of this embodiment, half-cutting with a single blade, layering (superposition) immediately before half-cutting, and axial rotation control of the feed roller 40 and the tension roller 40 are performed to cut the material to be discarded. Creates a product material similar to die-cutting without generating parts. This will be described in detail below.

FIG. 5 is a diagram showing operation timing charts of the feed roller 40, the tension roller 50 and the single blade 32. As shown in FIG.

Cutting with the single blade 32 is performed at a predetermined pitch P (see FIG. 2). A control unit 80 (see FIG. 1) controls the rotation start timing (synchronization) and rotation speed of the feed roller 40 and the tension roller 50 to intermittently move the material D' (D'').

That is, when the material D″ advances by the pitch P, that is, when it reaches the cutting position, the feed roller 40 and tension roller 50 are stopped to lower the single blade 32. After half-cutting, the feed roller 40 and tension roller 50 are lowered. 5, the feed roller 40 and the tension roller 50 are driven according to the period T1.

While the material D″ is half-cut according to the pitch P, the drive amount of the feed roller 40 and the tension roller 50 are equal, and the feed amount of the material D′ by the feed roller 40 and the feed amount of the base material d1 by the tension roller 50 are the same. Therefore, no gap is generated on both sides of the cut surface of the material D″ after half-cutting, and the material D″ is substantially in a continuous state.

On the other hand, by varying the drive amount of the feed roller 40 and the tension roller 50, it is possible to provide a predetermined interval with respect to the material D″ after half-cutting. The driving time of the pulling roller 50 is made longer than that.

As described above, the material D' before half-cutting is in the state of being mounted on the surface of the base material d1, and is not in the state of being attached to the base material d1. Therefore, when the tension roller 50 is rotated while the feed roller 40 is stopped, the base material d1 moves downstream with respect to the material D'. In FIG. 3, the part of the material after half-cutting that moves along with the movement of the base material d1 is indicated by the symbol "D" ₂ ", and the part of the material that continues to the base material D' even after the half-cutting is indicated by the symbol "D" ₁ ". represents.

By lengthening the drive time of the tension roller 50 compared to the feed roller 40, the substrate d1 moves further downstream by the drive time difference. Then, when the tension roller 50 stops, the single blade 32 descends, and the next half-cut is performed with a gap from the material D''. In FIG. The drive times are represented by t1 and t2 (t2>t1), and the half-cut time interval T1' when setting the interval is longer than the period T1 described above.

Here, an interval M is provided every time the material D' is half-cut three times (see FIG. 2). The drive roller 40 and the tension roller 50 are driven and adjusted in synchronization timing, and the vertical movement of the single blade 32 and its timing adjustment are performed by the control unit 85 . By continuing this half-cutting process, it is possible to obtain the product material 200 in which the material D'' with the gap M provided at a constant distance is attached to the base material d1.

As described above, according to the present embodiment, in the cutting machine 10 that performs half-cutting with the single blade 32, the base material D such as rubber is attached to the temporary base material d0 (double-sided tape in this case), and the base material D is fed. The roller 40 feeds out the pasted base material D' along the table 70 of the cutting machine main body 10. - 特許庁On the other hand, by the lamination mechanism 60, the tension roller 50 feeds the base material d1 such as release paper to the table 70 side, and the material D' is mounted on the base material d1 along the table 70, and the base material in the mounted state D" is half-cut by a single blade 32.

Then, the amount of rotation of the feed roller 40 and the tension roller 50, that is, the amount of feed of the material D' along the table 70 and the amount of feed of the base material d1 along the table 70 are made different, and the amount of feed of the base material d1 is changed. is increased, the space M is provided at a predetermined distance in the substrate D″ after half-cutting.

The length of the interval M and the pitch of the half-cutting can be arbitrarily adjusted by superposing the material D' on the base material d1 immediately before the half-cutting, and the product material 200 can be obtained with desired dimensions. . At this time, unlike conventional cutting machines, cut base materials to be discarded are not generated.

While the raw material D' is slid against the base material d1, the driving time t2 of the tension roller 50 is made longer than the driving time t1 of the feed roller 40, and the stacking mechanism 60 performs half-cutting. By being provided near the cutting position G, it is possible to form the gap M with a precisely determined length.

Therefore, depending on the material of the material D, the application of the material D, etc., the length of the gap M and the dimension of the material D can be switched midway or arbitrarily changed. Note that the stacking mechanism 60 is not limited to immediately before the cutting position G, and may be formed at a position closer to the feed roller 40 side, for example, closer to the cutting position G than the feed roller 40 .

The vertical positions of the movable rollers 50A1 and 50A2 of the tension roller 50 are controlled by a single servomotor 56. As shown in FIG. Therefore, when the stacking mechanism 60 mounts the material D on the surface of the base material d1 and controls the driving of the feed roller 40 and the tension roller 50 to provide the gap M, the material D″ can be conveyed by applying an appropriate tension. can.

The base material d0 is not limited to the double-sided tape, and the base material d1 having adhesiveness on one surface may be laminated on the material D' by the lamination mechanism 60. FIG.

REFERENCE SIGNS LIST 10 cutting machine 30 blade part 32 single blade 40 feed roller 50 tension roller 60 lamination mechanism D material d0 temporary base material d1 base material

Claims (7)

a feed roller for feeding the long material attached to the temporary base material by adhesion;
A stacking mechanism that separates the delivered material from the temporary base material in the gap formed along the cut surface on the table and mounts the material on the surface of the base material;
a single blade extending along the width direction perpendicular to the conveying direction of the material, the single blade half-cutting the material slidably mounted on the base material on a cutting surface;
a tension roller that feeds out the base material and conveys out the material that is half-cut and attached so as to be conveyed integrally with the base material ;
A control unit that drives and controls the feed roller and the tension roller and intermittently moves the material ,
The control unit sets a predetermined gap between the half-cut materials on the surface of the base material by increasing the base material feed amount by the tension roller compared to the material feed amount by the feed roller. A cutting machine characterized by being able to Half-cut the material at a predetermined pitch,
2. The cutting machine according to claim 1 , wherein the control unit increases the substrate feed amount by the tension roller each time half-cutting is performed for a predetermined number of times. 3. The cutter according to claim 1, wherein the gap is formed closer to the cutting position of the single blade than the feed roller . 4. The cutting machine according to claim 1, wherein the gap is located near the cutting position of the single blade. The laminating mechanism comprises a pair of inclined parts whose inclined surfaces inclined with respect to the cut surface face each other with a predetermined distance therebetween,
5. The cutting machine according to claim 1 , wherein said gap is formed between said pair of inclined portions . 6. The cutting machine according to claim 1, wherein the material is conveyed along the cutting surface between the feed roller and the tension roller. A feed roller feeds the long material attached to the temporary base material by adhesive,
In the gap formed along the cut surface on the table, the material sent out is peeled off from the temporary base material, and the material is mounted on the surface of the base material,
Half-cutting the material slidably mounted on the base material on the cut surface with a single blade along the width direction perpendicular to the conveying direction of the material ,
sending out the base material with a tension roller, carrying out the material that has been half-cut and attached so as to be transported integrally with the base material ;
A cutting method in which a control unit drives and controls the feed roller and the tension roller to intermittently move the material ,
A cutting method characterized by providing a predetermined interval between the half-cut materials on the surface of the base material by increasing the feed amount of the base material as compared with the feed amount of the material.

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