JPH09183111A - Method and device for laminating ceramic green sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly and effectively laminate a cover sheet whose degree of lamination accuracy is not required by developing ceramic green sheets, in laminated state, on a cutting base and cutting the laminated body of ceramic green sheets to predetermined shape on the cutting base. SOLUTION: A winding body 1 around which a ceramic green sheet (b) is wound and pressed thereon is transferred onto a cutting base 62 by means of a transfer means. At that time, the wind body 1 is placed on the right half of lower area and an escape groove 6 thereof is oriented to the right direction, i.e., to the side of a cutter 65. And thereafter, the cutter 65 moves vertically, while rotating, to cut off the sheet (b) wound around the body 1 along the groove 6. By being cut off, a plurality of layers of the sheet (b) wound around the body 1 are cut off at a time. Next, an engaging part 64 of a developing cylinder 63 is engaged with an engaging groove on the side surface of the body 1 and under such conditions, the cylinder 63 operates to move the body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for laminating ceramic green sheets for producing laminated electronic parts such as laminated ceramic capacitors and laminated ceramic inductors.

[0002]

2. Description of the Related Art A monolithic ceramic capacitor, which is the most typical example of a monolithic electronic component, has a large number of dielectric ceramic layers each having an internal electrode, which are alternately stacked on an end face of the laminate. External electrodes are formed on the end faces of the laminate from which these internal electrodes are drawn.

In the conventional manufacturing method of such a monolithic ceramic capacitor, a ceramic slurry in which a dielectric ceramic powder is dispersed in an organic binder is applied onto a carrier film such as polyethylene terephthalate film by a roll coater or the like, and then applied. A ceramic green sheet consisting of a thin ceramic layer is made by drying the ceramic slurry. Next, an internal electrode pattern is printed on the ceramic green sheet with a conductive paste by a screen printing method or the like. Then, after cutting the green sheet on which the internal electrode pattern is printed into a predetermined size, the green sheets are laminated in a predetermined order, and a plurality of so-called cover sheets in which the internal electrode pattern is not printed are formed on both sides of the green sheet. Stack up. The laminate thus obtained is cut into chips so that the internal electrodes are exposed at the end faces, and is fired. As a result, a fired laminate is obtained. Then, a conductive paste is applied to the end surface of the fired laminated body where the internal electrodes are exposed, and this is baked to form external electrodes. As a result, the monolithic ceramic capacitor is completed.

In the method of manufacturing a laminated electronic component as described above, the lamination accuracy of the ceramic green sheets is important in order to obtain the predetermined electrical characteristics, and the internal electrode patterns must be accurately arranged so as to have a predetermined positional relationship. It needs to be laminated. For this reason, in the conventional method for manufacturing a laminated electronic component, the individual ceramic green sheets are cut and laminated while being positioned with reference to the positioning marks printed on the ceramic green sheets at the same time as the internal electrode patterns.

[0005]

In such a conventional method of laminating ceramic green sheets, the ceramic green sheets having the internal electrode patterns can be laminated accurately. However, on the other hand, a so-called cover sheet, which does not have an internal electrode pattern and therefore does not require high lamination accuracy, is laminated by the same method, and therefore, there is a problem in that lamination takes time and productivity is poor. Therefore, in view of the problems of the conventional ceramic green sheet laminating method, an object of the present invention is to provide a ceramic green sheet laminating method and apparatus capable of efficiently obtaining a ceramic green sheet laminated body.

[0006]

According to the present invention, in order to achieve the above-mentioned object, a ceramic green sheet is cut into a predetermined shape, and then a plurality of the cut ceramic green sheets are not stacked, but a long sheet is cut. The ceramic green sheet b is wound around the peripheral surface of the winding drum 1 as it is to form a laminated state of a plurality of layers of the ceramic green sheet b.
After this is pressure-bonded, the ceramic green sheet b wound on the winding drum 1 is cut in a width direction at a part of a portion, and then the ceramic green sheet b is laminated in a cutting table 6
Then, the laminated body of the ceramic green sheets b was cut into a predetermined shape on the cutting table 62.
As a result, the cover sheets of any lamination accuracy can be laminated quickly and efficiently.

That is, the ceramic green sheet laminating method according to the present invention comprises the steps of winding the long ceramic green sheet b around the peripheral surface of the winding drum 1 a plurality of times, and the winding drum 1
The step of crimping the ceramic green sheet b wound on the sheet, the step of cutting the wound ceramic green sheet b in the width direction at a part thereof, and the step of laminating the ceramic green sheet b wound on the peripheral surface of the winding drum 1 And a step of unfolding on the cutting table 62 in the state.

In the method for laminating the ceramic green sheets according to the present invention as described above, the long ceramic green sheets b are laminated on the peripheral surface of the winding cylinder 1 while being wound without being cut into individual sheets, and after pressure bonding, Since the laminated body of the ceramic green sheets is cut into a predetermined shape and developed, the ceramic green sheets b can be easily laminated and a plurality of ceramic green sheets b can be simultaneously cut. For this reason, the stacking and cutting of the ceramic green sheets b can be performed efficiently and quickly, and high productivity can be obtained.

Here, after fixing the edge of the long ceramic green sheet b to a part of the surface of the winding drum 1, the winding drum 1 is rotated while supplying the ceramic green sheet b to the winding drum 1 side. Then, the long ceramic green sheet b may be wound around the peripheral surface of the winding drum 1. Thereby, the ceramic green sheets b can be laminated very easily. Further, the ceramic green sheets b wound on the winding drum 1 are pressed and pressed in the stacking direction, but a plurality of winding drums 1 on which the ceramic green sheets b are wound are stacked via the releasable sheet d. Pressurize in the stacking direction. As a result, the pressure bonding step can be performed in a more efficient step, that is, the simultaneous processing of a large amount of ceramic green sheets b.

Further, in the ceramic green sheet b wound around the peripheral surface of the winding drum 1 in this manner, the winding drum 1 is moved on the cutting table 62 after a part of the portion is cut in the width direction. Then, it is developed on the cutting table 62. afterwards,
The developed laminated body of the ceramic green sheets b is cut into a predetermined shape by the cutters 66 and 67 on the cutting table 62. Thereby, a laminate of the ceramic green sheets b having a predetermined shape is obtained.

Further, a ceramic green sheet laminating apparatus for carrying out such a ceramic green sheet laminating method comprises a winding cylinder 1 having means for fixing an edge of a long ceramic green sheet b, and this winding cylinder 1 A rotation drive unit 41 that supports and rotates the rotation center of the
1, a ceramic green sheet supply unit for supplying a long ceramic green sheet b to the winding drum 1 side rotated by 1, and a pressure bonding unit for pressing the ceramic green sheet b wound on the winding drum 1 in the stacking direction and pressure bonding. A cutter 65 for cutting the rolled-up ceramic green sheet b in the width direction at a part thereof, and a cutting table 62 for spreading the ceramic green sheet b wound around the peripheral surface of the winding drum 1 in a laminated state. Have. The cutting table 62 is provided with cutters 66 and 67 for finally cutting the ceramic green sheet b spread on the cutting table 62 into a predetermined shape.

Here, as a means for fixing the edge of the long ceramic green sheet b of the winding drum 1, for example, a long length in the width direction of the winding drum 1 corresponding to the width dimension of the ceramic green sheet b. It is possible to use the suction port 7 that is opened and has a negative pressure. In addition, the winding cylinder 1 typically has a pair of opposing surfaces of its peripheral surface which are parallel flat surfaces, and the other pair of opposing surfaces of the peripheral surface are convex outward. It consists of a curved semi-cylindrical surface.

In such a ceramic green sheet laminating apparatus, a tension for applying a tension to the ceramic green sheet b is supplied to the ceramic green sheet supply section according to the feeding amount of the ceramic green sheet b fed to the peripheral surface of the winding drum 1. It is advisable to provide an adjusting mechanism. As a result, the ceramic green sheet b is wound around the winding surface of the winding drum 1 while applying the adjusted tension to the ceramic green sheet b according to the winding amount of the ceramic green sheet b around the winding drum 1.
The ceramic green sheet b can be wound around the peripheral surface of the winding drum 1 while applying an appropriate tension to the ceramic green sheet b.

A buffer portion 3 for absorbing expansion and contraction of the ceramic green sheet b wound around the peripheral surface of the winding drum 1 is preferably provided on one end side thereof. This buffer section 3
Is biased by the elastic force of the spring 9 so as to protrude outward so that the entire length of the peripheral surface of the winding drum 1 becomes long. Thereby, when the ceramic green sheet b is wound around the peripheral surface of the winding drum 1, expansion and contraction of the ceramic green sheet b is absorbed, and wrinkles do not occur in the ceramic green sheet b.

Further, an escape groove 6 is formed on one end side of the winding drum 1 to avoid a cutting edge of a cutter 65 for cutting the ceramic green sheet b wound around the winding drum 1 in the width direction. The cutter 65 is provided adjacent to the cutting table 62. The cutting table 62 has a developing drive unit adjacent to the cutting table 62 for moving the winding drum 1 on which the ceramic green sheet b placed on the cutting table 62 has been wound. A part of the side surface of the winding drum 1 has an engagement groove 5 that engages with the deployment drive unit, and the deployment drive unit and the winding drum 1 are detachably engaged with each other via the engagement groove 5. It Further, at the center of the side surface of the winding drum 1, there is provided a shaft coupling 4 which is detachably engaged with a support shaft of the rotary drive unit 41. The shaft coupling 4 is composed of a recessed portion provided in the center of the side surface of the winding drum 1, whereby the rotational force for rotating the winding drum 1 is transmitted.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described specifically and in detail with reference to the drawings. 1 to 3 show an example of a winding drum 1 used for laminating ceramic green sheets according to the present invention. This winding drum 1
Is a rectangular parallel flat surface with a pair of opposing circumferential surfaces, and the other pair of opposing surfaces are semi-cylindrical surfaces projecting on both sides. I am in touch with you.

One end of the winding cylinder 1 forming one semi-cylindrical surface is separated from the main body 2 as a buffer portion 3, and as shown in FIG. 3, it can be projected and retracted from the end surface of the main body 2 via a pin 8. Is attached to. Furthermore, this buffer unit 2
A spring 9 attached to the inside of the main body 2 is engaged with the pin 8 so that the buffer portion 3 is elastically urged in a direction away from the end portion of the main body 2. The buffer portion 3 is stopped by a flange-shaped stopper provided in the middle of the pin 8 so as not to project rightward from the position shown by the solid line in FIG. When a load is applied to the buffer portion 3 in the leftward direction in FIG. 3, the buffer portion 3 resists the elasticity of the spring 9 and moves to the leftward direction as indicated by the chain double-dashed line. Due to such movement of the buffer section 3, the length of the entire circumferential surface of the winding drum 1 changes.

On the other hand, a relief groove 6 is formed in the width direction of the end face forming the other semi-cylindrical surface of the winding cylinder 1. The clearance groove 6 is provided to prevent the blade edge of the cutter 65, which will be described later, from directly contacting the peripheral surface of the winding drum 1. Further, a suction port 7 for fixing the end edge of the ceramic green sheet b is opened in the width direction of the winding drum 1 in the flat surface portion near the other end of the winding drum 1. This suction port 7
Is made a negative pressure by the air sucked through the air passage provided inside the winding drum 1, and the edge of the ceramic green sheet b is adsorbed and fixed there.

A recess 4 is provided as a shaft joint in the center of both flat side surfaces of the winding cylinder 1. The recess 4 is rotatably supported around the recess 4 as a shaft joint by a support shaft of a rotary drive unit 41 described later being detachably fitted. Engagement grooves 5 are provided apart from the concave portion 4 on the flat side surfaces of the winding drum 1 toward the ends. A rotational force from the rotary drive unit 41 is applied to the winding drum 1 by detachably fitting a tip of a rotary arm 48 of the rotary drive unit 41, which will be described later, into the engagement groove 5. Further, a plunger of a deployment cylinder 63 as a deployment drive source described later is also engaged.

FIG. 4 and FIG. 5 show a rotation drive section 41 and a ceramic green sheet supply section for performing the step of winding the ceramic green sheet b around the peripheral surface of the winding drum 1 as described above, and FIG. 6 shows this ceramic green sheet. The tension adjustment mechanism of a supply part is shown. The rotary drive unit 41 has a clamp cylinder 45, and the tip of a support shaft (not shown) is fitted into the recess 4 on one side surface of the winding drum 1 by the operation of the clamp cylinder 45. Furthermore, from this spindle to the rotating arm 48
Is extended and the tip of the rotary arm 48 engages with the engaging groove 5 of the winding drum 1. The rotation of the motor 44 is transmitted to the rotary arm 48 via the gear reduction mechanism 46 and the clutch / brake mechanism 47.

On the other hand, a clamp cylinder 49 is arranged on the opposite side of the motor 44 with the winding cylinder 1 sandwiched between them, and the tip of a spindle (not shown) is located on the other side surface of the winding cylinder 1 by the operation of the clamp cylinder 49. The recess 4 is fitted. A brake mechanism 49 is connected to the support shaft, and the brake mechanism 49 interlocks with the clutch / brake mechanism 47 to brake the rotation of the winding drum 1. The transport chuck 42 is arranged on the winding drum 1 which is axially supported in this manner. The winding drum 1 before winding the ceramic green sheet b is transported between the spindles by the transport chuck 42, and is supported by the spindles by the operation of the clamp cylinders 40 and 45.
In addition, the winding drum 1 in which the ceramic green sheet b is wound
Is released from the support shaft by the operation of the clamp cylinders 40 and 45, and is then transported by the transport chuck 42 to a press machine for pressure bonding described later.

The ceramic green sheet supply section for supplying the ceramic green sheet b is arranged on the side of the winding drum 1 which is axially supported as described above. The ceramic green sheet b is formed by applying a ceramic slurry on a carrier film c made of a long polyethylene terephthalate film or the like and drying it. Therefore, the initial ceramic green sheet b is wound around the roll 31 in the state of the carrier film-attached ceramic green sheet a held by the carrier film c. This ceramic green sheet a with a carrier film is sent out from a roll 31, passes through a feed roller 32 and a peeling roller 33, and is supplied to the winding drum 1 side. Then, at the position of the peeling roller 33, the peeling blade 35 moves the carrier film c to the ceramic green sheet b.
Is peeled off, and only the ceramic green sheet b is wound on the winding drum 1.
Sent to the side.

The carrier film c from which the ceramic green sheet b has been peeled off passes through the feed roller 36 and the roll 37.
Wound as. On the other hand, the ceramic green sheet b separated from the carrier film c is sent out from the buffer roller 34 to the winding drum 1 side via the feed roller 38. Here, a ceramic green sheet b as shown in FIG. 6 is provided between the buffer roller 34 and the feed roller 38.
A tension adjusting mechanism is provided for adjusting the tension of the. This tension adjusting mechanism uses the ceramic green sheet b
The tension roller 77 is provided between the pair of buffer rollers 34, 34 for adjusting the tension when the pair of buffer rollers 34, 3 is provided.
The ceramic green sheet b between 4 passes through the tension roller 77. This tension roller 77
Is rotatably supported by a bearing 74 attached to a belt 72, and the belt 72 is wound around a pair of pulleys 73 and 75 arranged vertically. Of these, the lower pulley 75 is attached to the output shaft of the clutch 76. The clutch 76 intermittently transmits the rotation of the motor 71 and transmits the rotation to the pulley 75, and operates in conjunction with the rotation of the feed roller 38.

Further, as shown in FIG. 4, a suction head 39 having a vertically movable cutter 43 is arranged above the buffer roller 34. This suction head 39
Adsorbs and holds the ceramic green sheet b, and cuts the portion of the ceramic green sheet b ahead of the held portion by the cutter 43. The edge portion of the ceramic green sheet b cut by the cutter 43 is conveyed to the winding drum 1 side by the suction head 39. At this time, the winding drum 1 is at a position rotated by 180 ° from that shown in FIG. 4, and its suction port 7 (see FIGS. 1 and 2) faces upward. Therefore, the edge portion of the ceramic green sheet b is placed on the suction port 7 of the winding drum 1 and the suction port 7
Becomes negative pressure, and the edge portion of the ceramic green sheet b is adsorbed and held at the suction port 7 of the winding drum 1.

After that, the winding drum 1 is rotated in the direction shown by the arrow in FIG. 4 by the rotation driving unit 41, and the ceramic green sheet b is wound around the peripheral surface of the winding drum 1. At this time, when the feed roller 38 rotates according to the feed amount of the ceramic green sheet b, a clutch current flows through the clutch 76 shown in FIG. 6 according to the rotation speed of the feed roller 38, and the rotation torque of the motor 71 that constantly rotates. Belt 72
Is transmitted to the buffer roller 77 via. Thereby, a required tension is applied to the ceramic green sheet b, and the ceramic green sheet b is wound around the peripheral surface of the winding drum 1 with an appropriate tension. Further, since the buffer portion 3 is pushed against the elastic force of the spring 9 (see FIG. 3) by the tension of the ceramic green sheet b at this time and the tension is adjusted, the ceramic green sheet b is not wrinkled.

FIGS. 7 and 8 show a state in which the ceramic green sheet b is wound around the peripheral surface of the winding drum 1. By rotating the winding drum 1 in the direction shown by the arrow in FIG. The ceramic green sheet b is wound around the peripheral surface a plurality of times. When the ceramic green sheet b is wound around the winding cylinder 1 a predetermined number of times, the cutter 43 of the suction head 39 shown in FIG. 4 cuts the ceramic green sheet b, and then the edge of the ceramic green sheet b is sucked by the suction head 39. Held in. Further, the winding drum 1 on which the ceramic green sheet b is wound is held by the transport chuck 42, released from the rotation driving unit 41, and transported to a predetermined storage place.

FIG. 9 shows a press machine for press-bonding the ceramic green sheets b, which are wound in the winding drum 1 in this way and are in a laminated state. In this press machine, a gate-shaped frame 52 is provided with a pressurizing means 53 such as a hydraulic press. A plurality of winding drums 1 in which the ceramic green sheets b are wound are stacked on the pressure table 54 via the releasable sheet d, and the ram 51 of the pressing means 53 is lowered to move the winding drum 1
The ceramic green sheet b rolled up in is pressed and pressure-bonded. The ceramic green sheet b wound around the winding drum 1 is set in a pre-heated state in advance in a pressing machine, and is pressed and pressed in a heated state.

FIGS. 10 to 12 show a developing and cutting portion for removing the pressure-bonded ceramic green sheet b from the winding drum 1 and cutting it into a predetermined shape. As shown in FIG. 10, a cutting table 62 rotated horizontally every 180 ° by a rotary drive unit 61 is horizontally installed. The winding drum 1 is placed on the cutting table 62.
11, two areas are set on the upper and lower sides of the ceramic green sheet b, and cutters 66 and 67 are arranged adjacent to the upper mounting area. The cutter 66 moves up and down in FIG.
The cutter 67 moves left and right in FIG.
The cutting blades are arranged at predetermined intervals in the direction orthogonal to the moving direction. And these cutters 66, 6
The relief groove 68 is provided along the locus along which the cutting blades move by the movement of 7. By the movement of the cutting table 62 every 180 ° by the rotary drive unit 61, the two areas are alternately moved to the positions where the cutters 66 and 67 move.

On the other hand, a cutter 65 for moving the right end position in FIG. 11 up and down in FIG. 11 is arranged in the lower area in FIG. 11 where the cutters 66 and 67 are not arranged. The cutter 65 is provided at a height corresponding to the clearance groove 6 of the winding drum 1 around which the ceramic green sheet b is wound. Further, on both sides of the area under the cutting table 62 in FIG. 11, deployment cylinders 63 as deployment driving sources for moving the winding drum 1 on the cutting table 62 are arranged. At the tip of
The engaging portion 64 is engaged with the engaging groove 5 (see FIGS. 7 and 8) of the winding drum 1. The engaging portion 64 is the engaging groove 5 of the winding drum 1.
The expansion cylinder 63 is operated in a state of being engaged with, and the plunger is contracted or extended, so that the winding cylinder 1 is moved to the position shown in FIG.
1 is moved in the left-right direction.

The winding drum 1 in which the ceramic green sheet b is wound and pressure-bonded as described above is conveyed onto the cutting table 62 by the conveying means (not shown). At this time,
The winding drum 1 is placed in the right half position of the lower area in FIG. 11, and the escape groove 6 side thereof is arranged in the right direction in FIG. 11, that is, toward the cutter 65 side. Then, while the cutter 65 rotates, it moves in the vertical direction in FIG. 11, that is, in the front-back direction of the paper surface in FIGS. 10 and 12, and cuts the ceramic green sheet b wound around the winding drum 1 along the clearance groove 6. By this cutting, a plurality of layers of the ceramic green sheet b wound on the winding drum 1 are cut at the same time. FIG. 12 shows a state in which the ceramic green sheet b is cut in this way.

Next, the engaging portion 64 of the expanding cylinder 63 is engaged with the engaging groove 5 on the side surface of the winding cylinder 1, and the expanding cylinder 63 operates in this state to move the winding cylinder 1 leftward in FIG. That is, it is moved as shown by the chain double-dashed line in FIG. As a result, the ceramic green sheet b wound on the winding drum 1 is spread on the cutting table 62. afterwards,
The winding drum 1 is discharged from the cutting table 62 by a transporting means (not shown). Next, the cutting table 62 rotates 180 °, and the developed ceramic green sheet b moves to the side of the cutting table 62 having the cutters 66 and 67. There cutter 6
The cutting blades 6 and 67 move up and down and to the right and left in order, so that their cutting blades move along the escape grooves 68 on the cutting table 62, and cut the ceramic green sheet b into a predetermined quadrangle. As a result, a laminated body of rectangular ceramic green sheets b having a plurality of laminated layers is obtained.

In parallel with this cutting step, another winding drum 1 is conveyed to the cutting table 62 on the lower right side in FIG.
The cutting by 5, the expansion of the ceramic green sheet b by the expansion cylinder 63, and the discharge of the winding drum 1 by the conveying means are performed in the same manner as described above. Incidentally, in the above-mentioned embodiment,
A winding drum having a flat surface and a peripheral surface including a semi-cylindrical surface was used as the winding drum 1. However, even if a winding drum having a cylindrical surface or an elliptic cylindrical surface is used, the same method and apparatus for laminating ceramic green sheets are used. Needless to say that you can get

[0033]

As described above, according to the present invention, while the winding drum 1 is rotated, the ceramic green sheets b are laminated on the peripheral surface thereof and the ceramic green sheets b can be pressed and cut in the laminated state. The green sheets b can be laminated very easily and in a short time. This allows
The so-called cover sheet lamination, which does not require particularly high lamination accuracy, can be efficiently performed, and the productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view from the lower side showing an example of a winding cylinder used in a device for laminating ceramic green sheets according to the present invention.

FIG. 2 is a side view showing an example of the same winding cylinder.

FIG. 3 is a partially enlarged vertical side view showing an example of the same winding cylinder.

FIG. 4 is a schematic side view showing an example of a rotation driving unit and a ceramic green sheet supply unit of the ceramic green sheet laminating apparatus according to the present invention.

FIG. 5 is a schematic plan view showing an example of the rotary drive unit and a ceramic green sheet supply unit.

FIG. 7 is a side view showing an example of a state in which a ceramic green sheet is wound around a winding cylinder used in the ceramic green sheet laminating apparatus according to the present invention.

FIG. 8 is a side view showing an example of a state in which a ceramic green sheet is wound around the winding cylinder.

FIG. 9 is a schematic side view showing an example of a ceramic green sheet pressure-bonding section of a ceramic green sheet laminating apparatus according to the present invention.

FIG. 10 is a schematic side view showing an example of a ceramic green sheet developing / cutting unit of a ceramic green sheet laminating apparatus according to the present invention.

FIG. 11 is a schematic plan view showing a cutting table of the ceramic green sheet developing / cutting unit and an arrangement example of the periphery thereof.

FIG. 12 is a side view of essential parts showing an example of a developing process of the ceramic green sheet in the developing / cutting part of the ceramic green sheet.

[Explanation of symbols]

 1 winding drum 3 buffer portion of winding drum 4 shaft coupling of winding drum 5 engagement groove of winding drum 6 escape groove of winding drum 9 spring of winding drum 34 buffer roller 38 feed roller 41 rotary drive unit 62 cutting table 63 expansion cylinder 65 Cutter 66 Cutter 67 77 Tension roller b Ceramic green sheet d Release sheet

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 10, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a perspective view from the lower side showing an example of a winding cylinder used in a device for laminating ceramic green sheets according to the present invention.

FIG. 2 is a side view showing an example of the same winding cylinder.

FIG. 3 is a partially enlarged vertical side view showing an example of the same winding cylinder.

FIG. 4 is a schematic side view showing an example of a rotation driving unit and a ceramic green sheet supply unit of the ceramic green sheet laminating apparatus according to the present invention.

FIG. 5 is a schematic plan view showing an example of the rotary drive unit and a ceramic green sheet supply unit.

FIG. 6 is a schematic side view showing an example of a ceramic green sheet tension adjusting mechanism in the ceramic green sheet laminating apparatus.

FIG. 7 is a side view showing an example of a state in which a ceramic green sheet is wound around a winding cylinder used in the ceramic green sheet laminating apparatus according to the present invention.

FIG. 8 is a side view showing an example of a state in which a ceramic green sheet is wound around the winding cylinder.

FIG. 9 is a schematic side view showing an example of a ceramic green sheet pressure-bonding section of a ceramic green sheet laminating apparatus according to the present invention.

FIG. 10 is a schematic side view showing an example of a ceramic green sheet developing / cutting unit of a ceramic green sheet laminating apparatus according to the present invention.

FIG. 11 is a schematic plan view showing a cutting table of the ceramic green sheet developing / cutting unit and an arrangement example of the periphery thereof.

FIG. 12 is a side view of essential parts showing an example of a developing process of the ceramic green sheet in the developing / cutting part of the ceramic green sheet.

[Explanation of reference numerals] 1 winding drum 3 buffer portion of winding drum 4 shaft coupling of winding drum 5 engagement groove of winding drum 6 escape groove of winding drum 9 spring of winding drum 34 buffer roller 38 feed roller 41 rotation drive portion 62 cutting Platform 63 Expansion cylinder 65 Cutter 66 Cutter 67 Cutter 77 Tension roller b Ceramic green sheet d Releasable sheet

Claims (20)

[Claims] 1. A ceramic green sheet laminating method in which a plurality of ceramic green sheets (b) are laminated and cut into a predetermined shape, wherein a long ceramic green sheet (b) is provided on a peripheral surface of a winding cylinder (1). A step of winding a plurality of times, a step of pressure-bonding the ceramic green sheet (b) wound on the winding cylinder (1), and a step of cutting the wound ceramic green sheet (b) in a width direction at a part thereof. , The ceramic green sheet (b) wound around the peripheral surface of the winding cylinder (1) in a laminated state,
2) A method of laminating a ceramic green sheet, which comprises the step of developing on top. 2. A long ceramic green sheet (b).
Before the step of winding the windshield around the surface of the winding drum (1) a plurality of times, a step of previously fixing the edge of the long ceramic green sheet (b) to a part of the surface of the winding drum (1) is included. The method for laminating ceramic green sheets according to claim 1, wherein: 3. The winding cylinder (1) is provided while supplying the ceramic green sheet (b) to the winding cylinder (1) side in the step of winding the long ceramic green sheet (b) around the peripheral surface of the winding cylinder (1). The method for laminating ceramic green sheets according to claim 1 or 2, wherein the method is performed by rotating. 4. The winding cylinder (1) in which the ceramic green sheet (b) is wound through the releasable sheet (d) in the step of pressure-bonding the ceramic green sheet (b) wound around the winding drum (1). 2. A step of stacking a plurality of sheets and applying pressure in the stacking direction.
3. The ceramic green sheet laminating method according to any one of 3 above. 5. The step of developing the ceramic green sheet (b) wound on the peripheral surface of the winding cylinder (1) on the cutting table (62) is performed by partially extending the ceramic green sheet (b) in the width direction. After cutting the reel, the winding drum (1) is cut into a cutting table (6
2) It is carried out while moving on.
The method for laminating ceramic green sheets according to any one of claims 1 to 4. 6. The unfolded ceramic green sheet (b) after the step of unfolding the ceramic green sheet (b) wound around the peripheral surface of the winding drum (1) on the cutting table (62).
The method for laminating a ceramic green sheet according to claim 1, further comprising a step of cutting the green sheet into a predetermined shape. 7. The ceramic green sheet (b) is applied to the ceramic green sheet (b) while applying an adjusted tension in accordance with the amount of the ceramic green sheet (b) wound around the peripheral surface of the winding drum (1). The method for laminating a ceramic green sheet according to any one of claims 1 to 6, characterized in that the method is carried out by winding up the winding body (1). 8. A ceramic green sheet laminating apparatus for laminating a plurality of ceramic green sheets (b) and cutting the ceramic green sheets (b) into a predetermined shape, the winding having means for fixing the edges of the long ceramic green sheets (b). A cylinder (1), a rotation drive unit (41) that supports and rotates the center of rotation of the winding cylinder (1), and a long ceramic on the winding cylinder (1) side that is rotated by the rotation drive unit (41). A ceramic green sheet supply unit for supplying the green sheet (b), a pressure bonding unit for pressure-bonding the ceramic green sheet (b) wound around the winding cylinder (1) in the stacking direction, and the wound ceramic green sheet. A cutter (65) that cuts (b) in the width direction at a part thereof,
A ceramic green sheet laminating apparatus comprising: a cutting table (62) on which a ceramic green sheet (b) wound around a peripheral surface of a winding drum (1) is developed in a laminated state. 9. A cutter (66), (67) for cutting a ceramic green sheet (b) spread on a cutting table (62) into a predetermined shape.
The ceramic green sheet laminating apparatus described in 1. 10. A means for fixing an edge of a long ceramic green sheet (b) of a winding drum (1) has a width of the winding drum (1) corresponding to a width dimension of the ceramic green sheet (b). The ceramic green sheet laminating apparatus according to claim 8 or 9, wherein the ceramic green sheet laminating apparatus comprises a suction port (7) that is opened in a long direction and has a negative pressure. 11. The winding cylinder (1) is such that a pair of opposing surfaces on its peripheral surface are parallel flat surfaces, and another pair of opposing surfaces on the peripheral surface are convex outward. The ceramic green sheet laminating apparatus according to any one of claims 8 to 10, wherein the ceramic green sheet laminating apparatus comprises a curved semi-cylindrical surface. 12. A buffer portion (3) for absorbing expansion and contraction of a ceramic green sheet (b) wound around a peripheral surface of the winding drum (1), which is provided at one end side thereof. 11. The ceramic green sheet laminating apparatus according to any one of 1 to 11. 13. A buffer portion (3) provided at one end side of the winding drum (1) has a spring (9) elastic force so as to project outward so that the entire length of the circumferential surface of the winding drum (1) becomes long. The ceramic green sheet laminating apparatus according to claim 12, wherein the ceramic green sheet laminating apparatus is urged. 14. A relief groove (6) is formed on one end side of the winding cylinder (1) to avoid a cutting edge of a cutter (65) for cutting the ceramic green sheet (b) wound around the peripheral surface in the width direction. The ceramic green sheet laminating apparatus according to any one of claims 8 to 13, characterized in that. 15. A cutter (65) for cutting the ceramic green sheet (b) wound around the peripheral surface of the winding cylinder (1) in the width direction at a part of a portion is provided adjacent to the cutting table (62). The ceramic green sheet laminating apparatus according to any one of claims 8 to 14, wherein 16. A ceramic green sheet (b) placed on the cutting table (62) adjacent to the cutting table (62).
The ceramic green sheet laminating apparatus according to any one of claims 8 to 15, further comprising a development driving unit that moves the winding drum (1) that has been wound. 17. The ceramic green sheet laminating apparatus according to claim 16, wherein the winding drum (1) has an engaging groove (5) which engages with a deployment driving unit on a part of a side surface of the winding drum (1). 18. The winding joint (1) according to any one of claims 8 to 17, characterized in that it has a shaft coupling (4) which is detachably engaged with a support shaft of a rotation drive portion (41) in a central portion of a side surface of the winding drum (1). A ceramic green sheet laminating apparatus as described in 1. 19. The shaft coupling (4), which is detachably engaged with the support shaft of the rotary drive unit (41), comprises a recess provided in the center of the side surface of the winding drum (1). The ceramic green sheet laminating apparatus described in 1. 20. A ceramic green sheet supply section,
Ceramic green sheet (b) around the surface of the winding drum (1)
20. The ceramic green sheet laminating apparatus according to claim 8, further comprising a tension adjusting mechanism for applying a tension to the ceramic green sheet (b) according to the feeding amount of the ceramic green sheet (b).