JP2008272913A - Ceramic substrate forming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate arrangement work when size of a required substrate is varied in a ceramic substrate forming device provided with a conveying means in which green sheet from a reel rewinding means is intermittently fed to a pressing machine by a constant dimension feeding means and the green sheet accompanied by the substrate punched out by the pressing machine is conveyed from the pressing machine; and a separation means for separating the substrate from the green sheet conveyed from the conveying means. <P>SOLUTION: The constant dimension feeding means 8, the conveying means 9 and the separation means 10 are arranged at both sides of the pressing machine 7 such that movement along a feeding direction 18 is enabled so as to adjust a relative position in an approaching or separating direction relative to the pressing machine 7. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention provides a reel unwinding means having a reel on which a belt-shaped green sheet is wound, a press machine for punching out a substrate from the green sheet, and the green sheet unwound from the reel unwinding means is intermittently supplied to the press machine. Sizing feed means for feeding the sheet, unloading means for unloading the green sheet with the substrate after punching out from the press machine, and separation for separating the substrate from the green sheet unloaded by the unloading means And a ceramic substrate forming apparatus.

  In such a substrate forming apparatus, a substrate is obtained from a strip-shaped green sheet supplied intermittently by punching with a press machine. Is in a fixed position with respect to the press, and the press has its own mold and mold guide.

  By the way, the required size of the substrate changes several times a day in response to the recent demand for a variety of products and a small amount, and the punch and die of the press machine are changed according to such frequent changes. In the conventional case, the distance between the molded part of the mold and the fixed-size feeding means and the unloading means changes or the tape is removed when the mold is changed or cleaned in the press machine. It will be necessary. Further, a plurality of guide plates such as a plurality of iron plates having different lengths are provided between the fixed dimension feeding unit and the molding unit of the mold, and between the molding unit of the mold and the unloading unit. The guide plate is exchanged according to the change in the size of the substrate, which takes time and effort in the setup work corresponding to the change in the size of the substrate.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a ceramic substrate forming apparatus that facilitates setup work when the required size of the substrate changes.

  In order to achieve the above object, the invention according to claim 1 includes a reel unwinding means having a reel on which a belt-shaped green sheet is wound, a press machine for punching a substrate from the green sheet, and the reel unwinding means. Fixed-size feeding means for intermittently feeding the unwound green sheet to the press machine, unloading means for unloading the green sheet with the substrate after punching out from the press machine, and unloading by the unloading means And a separating means for separating the substrate from the green sheet, wherein the fixed dimension feeding means follows the feeding direction of the green sheet so as to adjust the relative position in the approaching / separating direction with respect to the pressing machine. It is arranged on the upstream side along the feed direction of the press machine so as to be movable, and the unloading means and the separating hand There characterized in that it is located downstream along the feeding direction of the press machine as allow movement along the feeding direction so as to adjust the relative position of approach to and separate from a direction relative to the press.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the press is positioned by a fixed lower mold holder having a plurality of lower positioning portions and the lower position value determining portion. A lower mold that is exchangeably attached to the lower mold holder, an upper mold holder that has a plurality of upper positioning portions and that can be moved up and down above the lower mold holder, and an elevation of the upper mold holder Guide means provided between the lower mold holder and the upper mold holder so as to guide the operation, and can be replaced with the upper mold holder so as to face the lower mold while being positioned by the upper positioning portion. And an upper mold to be attached.

  According to the first aspect of the present invention, the fixed-size feeding means for intermittently feeding the green sheet to the press machine, the unloading means for unloading the green sheet accompanied by the punched substrate from the press machine, and the green sheet Separating means for separating the substrate can be moved along the green sheet feeding direction by adjusting the relative position in the approaching / separating direction with respect to the pressing machine, so that the die of the pressing machine according to the change in the size of the substrate Can be easily and quickly adjusted to a constant distance between the molding part and the fixed-size feeding means in the mold of the press machine and the distance between the molding part and the unloading means. The setup work when the size of the substrate to be changed can be facilitated. Further, since the separating means can be moved along the feeding direction of the green sheet so that the relative position in the approaching / separating direction with respect to the press machine can be adjusted, the relative positions of the unloading means and the separating means can be kept constant.

  According to the second aspect of the present invention, the relative positions of the lower mold holder and the upper mold holder are determined by the guide means provided between the lower mold holder and the upper mold holder, and the lower mold is provided in the lower mold holder. Since it is attached to the lower mold holder while being positioned by the lower positioning part, and the upper mold is attached to the upper mold holder while being positioned by the upper positioning part provided in the upper mold holder, it corresponds to the size of the substrate to be formed It is necessary to prepare multiple units of lower mold and upper mold in advance and attach the lower mold and upper mold of the unit to the lower mold holder and upper mold holder according to the change in the size of the board. Therefore, it is possible to easily and quickly perform the setup operation with the press according to the change in the size of the substrate, and the setup operation can be made easier.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.

  1 to 6 show an embodiment of the present invention. FIG. 1 is a side view of a substrate forming apparatus, FIG. 2 is a plan view taken along arrow 2 in FIG. 1, and FIG. 4 is a view taken along line 4-4 in FIG. 3, FIG. 5 is a view showing a green sheet after completion of punching by a press, and FIG. 6 is an explanatory view showing a state in which the substrate is separated by the separating means.

  1 and 2, this ceramic substrate forming apparatus includes a reel unwinding means 6 having a reel on which a belt-shaped green sheet 5 is wound, and a press machine for punching a substrate 11 (see FIG. 5) from the green sheet 5. 7, sizing feed means 8 for intermittently feeding the green sheet 5 unwound from the reel unwinding means 6 to the press machine 7, and the green sheet 5 while accompanying the substrate 11 after punching. Unloading means 9 for unloading from the press 7 and separation means 10 for separating the substrate 11 from the green sheet 5 unloaded by the unloading means 9 are provided.

  The reel unwinding means 6 is fixedly disposed on one end in the longitudinal direction (left end in FIGS. 1 and 2) of the base 12 that can move on the floor surface and can be fixed at a predetermined position. A reel 13 provided in the reel unwinding means 6 is rotatably supported on an upper portion of a first support frame 14 provided on one end in the longitudinal direction of the base 12, and the belt-like green sheet 5 is wound around the reel 13. . Moreover, the reel 13 is rotationally driven in the direction of unwinding the green sheet 5 in synchronism with the intermittent feeding operation by the fixed dimension feeding means 8 by a rotation driving means (not shown). The unwinding amount of the green sheet 5 from 6 is set to be slightly larger than the feeding amount of the green sheet 5 by the fixed dimension feeding means 8. A first idle roller 15 on which an intermediate portion of the green sheet 5 unwound from the reel 13 is wound from above is rotatably supported at an intermediate portion in the vertical direction of the first support frame 14.

  A second support frame 17 is provided on the other longitudinal end of the base 12 (the right end in FIGS. 1 and 2), and the press machine 7 is provided on the second support frame 17. The green sheet 5 unwound from the reel 13 of the reel unwinding means 6 is supplied to the press machine 7 along the feed direction 18 indicated by an arrow. It is arranged on the upstream side along the feed direction 18.

  A third support frame 19 is provided on the intermediate portion in the longitudinal direction of the base 12, and two pairs of rails are provided on the third support frame 19 at a position spaced along the feed direction 18. .., 21... Are fixed so as to extend along the feeding direction 18, and a first movable base 22 movable along the rails 20. Is done. Moreover, between the third support frame 19 and the first movable base 22, a drive mechanism for moving the first movable base 22 on the rails 20 ... 21 in response to the rotational operation of the first operating handle 23. (Not shown) is provided.

  The fixed-size feed means 8 is disposed on the first movable base 22, and a pair of first feed rollers 24 that feed the green sheet 5 unwound from the reel unwinding means 6 upward from both sides. , 24, and a second idle roller 25 that wraps the green sheet 5 fed from both first feed rollers 24 ... and changes the flow direction of the green sheet 5 toward the feed direction 18 at a substantially right angle, A second feeding roller 26 that contacts the lower surface of the green sheet 5 on the pressing machine 7 side and feeds the green sheet 5 to the pressing machine 7 side, and a lower surface of the green sheet 5 between the second idle roller 25 and the second feeding roller 26. And a third idle roller 27 in contact with.

  A support base 28 located below the first movable base 22 is fixed to the end of the first movable base 22 on the reel unwinding means 6 side, and a pair of first feed rollers 24. Electric motors 29 and 29 for rotating and driving the first feed rollers 24 are respectively attached to the support base 28. Moreover, the green sheet 5 unwound downward from the reel unwinding means 6 is fed upward by the first feed rollers 24... Between the reel unwinding means 6 and the first feed rollers 24. That is, between the fixed dimension feeding means 8 and the reel unwinding means 6, a bending portion 5a in which the green sheet 5 is bent downward is arranged. Also, a pair of brushes 30, 30 are attached to the support base 28 so as to be in sliding contact with the green sheet 5 fed upward by the first feeding rollers 24.

  One end side of a pair of upper and lower guide shafts 31, 31 extending in the feeding direction 18 is fixed to the support base 28, and guide cylinders 32, 32 for slidably fitting the guide shafts 31, respectively, are third. The support frame 19 is fixed, and the support table 28 is moved following the movement of the first movable table 22.

  A bracket 33 is provided at the end of the first movable base 22 on the reel unwinding means 6 side, and the second idle roller 25 positioned above the first feed rollers 24 and the brushes 30 is provided with the bracket. The bracket 33 is rotatably supported.

  A first guide base 34 having a guide surface 34a for guiding the green sheet 5 on its upper surface is fixed to the end of the first movable base 22 on the press machine 7 side. The roller 27 is supported by the first guide base 34 such that a part thereof faces the guide surface 34a, and the second feed roller 26 is a rotation driving means (not shown) accommodated in the first guide base 34. ) And is driven to rotate in synchronization with the first feed rollers 24.

  Also, the base ends of a plurality of first guide members 35, 35... Extending to the press 7 side to guide the green sheet 5 from the guide surface 34 a to the press 7 side are fixed to the first guide base 34. A plurality of air holes (not shown) are provided on the upper surfaces of the guide surface 34a and the plurality of first guide members 35 to eject air upward to prevent the green sheet 5 from coming into close contact. Provided.

  Further, between the first guide table 34 and the second idle roller 25, the first movable table 22 has a housing 37 for heating means 36 for adjusting the temperature of the green sheet 5 to be constant before being punched by the press 7. Is provided to cover the green sheet 5.

  The press machine 7 is configured to decelerate the power of the servo motor 38 and transmit it to the ram 39, and the ram is controlled by controlling the servo motor 38 according to the change in the thickness of the green sheet 5. The amount of descent of 39 is adjusted appropriately.

  In FIG. 3, the press machine 7 is disposed so as to be movable up and down above the lower mold holder 41, a fixed lower mold holder 41, a lower mold 42 attached to the lower mold holder 41 in an exchangeable manner. An upper mold holder 43 fixed to the ram 39; guide means 44 provided between the lower mold holder 41 and the upper mold holder 43 so as to guide the lifting operation of the upper mold holder 43; And an upper mold 45 that is attached to the upper mold holder 43 so as to be opposed to the mold 42.

  Referring also to FIG. 4, the guide means 44 is provided at two positions of the lower mold holder 41 and extends vertically, and the guide posts 46, 46 are slidably fitted. It is constituted by guide bushes 47, 47...

  Upper positioning pins 48, which are upper positioning portions, are provided at a plurality of locations on the upper holder 43 so as to protrude downward. The upper mold 45 includes an upper support plate 49 that is positioned with respect to the upper mold holder 43 by fitting a plurality of the upper positioning pins 48, and a stripper holder 50 that is fixed to the upper support plate 48. An opening 51 corresponding to the outer shape of the substrate 11 to be punched is formed, the stripper 52 is held by the stripper holder 50 so as to be able to move up and down in a limited range, and the stripper 52 is urged downward. 52 and the upper support plate 49, and a blade 54 fixed to the stripper holder 50 so as to be disposed in the opening 51.

  Thus, the upper mold 45 in a state of being positioned with respect to the upper mold holder 43 by fitting the upper positioning pins 54 to the upper support plate 49 is a pair of provided on the upper mold holder 43. The engagement holding members 55 and 55 are fixed to the upper mold holder 43 by engaging with the upper support plate 49. In addition, on both the left and right sides of the upper support plate 49, grips 56, 56 are provided for facilitating the attaching / detaching operation of the upper mold 45 to the upper mold holder 43.

  In FIG. 3, lower positioning pins 57, which are lower positioning portions, are provided at a plurality of locations of the lower mold holder 41 so as to project upward. Further, the lower mold 42 has a lower support plate 58 that is positioned with respect to the lower mold holder 41 by fitting a plurality of the lower positioning pins 57, and a stripper holder 59 that is fixed to the lower support plate 58. An opening 60 corresponding to the outer shape of the substrate 11 to be punched is formed, the stripper 61 is held by the stripper holder 59 so as to be able to move up and down in a limited range, and the stripper 61 is biased upward. A spring 62 is provided between the stripper 61 and the lower support plate 58.

  Thus, the lower mold 42 in a state of being positioned with respect to the lower mold holder 41 by fitting the lower positioning pins 57 to the lower support plate 58 is a pair provided on the lower mold holder 41. The engagement holding members 63 and 63 are engaged with the lower support plate 58 to be fixed to the lower mold holder 41. In addition, on both the left and right sides of the lower support plate 58, gripping portions (not shown) are provided in the same manner as the upper support plate 49 of the upper mold 45 in order to facilitate attachment / detachment to the lower mold holder 41 of the lower mold 42. It is done.

  In such a press 7, the upper die holder 43 is lowered together with the ram 29, so that the green sheet 5 is sandwiched from above and below by the strippers 52 and 61, and the blade 54 corresponds to the substrate 11 of the green sheet 5. When the upper die holder 43 rises together with the ram 29 after cutting, the punched substrate 11 is returned to the green sheet 5 side by the stripper 61 of the lower die 42 as shown in FIG. The unloading means 9 unloads the green sheet 5 with the substrate 11 after punching out from the press machine 7.

  In FIGS. 1 and 2 again, a fourth support frame 68 protruding from the base 12 is fixed on the other longitudinal end of the base 12 (the right end in FIGS. 1 and 2). A pair of rails 69 extending in the feed direction 18 are fixed on the frame 68, and a second movable base 70 movable along the rails 69 is disposed on the fourth support frame 68. In addition, a drive mechanism (not shown) for moving the second movable table 70 on the rails 69... Between the fourth support frame 68 and the second movable table 70 in accordance with the rotation operation of the second operation handle 71. ) Is provided.

  The carry-out means 9 is arranged on the second movable base 70 so as to be arranged on the downstream side along the feeding direction 18 of the press machine 7, and has a guide surface 72 a for guiding the green sheet 5 as an upper surface. A second guide base 72 having the second movable base 70 is fixed on the second movable base 70.

  In addition, the second guide base 72 is fixed with the base ends of a plurality of second guide members 73, 73... Extending toward the press 7 in order to guide the green sheet 5 from the press 7 to the guide surface 72 a. The upper surfaces of the guide surface 72a and the plurality of second guide members 73 are provided with a plurality of air holes (not shown) through which air for preventing the green sheet 5 from adhering is directed upward. It is done.

  The separating means 10 is also disposed on the second movable base 70 on the downstream side of the pressing machine 7 along the feeding direction 18, and the flow direction of the green sheet 5 is set downward on the downstream side of the unloading means 9. A fourth idle roller 74 that winds the green sheet 5 so as to convert, and a scraper that contacts the upper surface of the green sheet 5 at a portion wound around the fourth idle roller 74 and separates the substrate 11 from the green sheet 5. 75.

  At the end of the second movable base 70 opposite to the press 7, the second movable base 70 has a base end of a guide plate 77 that is inclined so as to become a lower position as it is separated from the fourth idle roller 74. The free end is pivotally supported via a support shaft 78 so that the free end rotates to the side close to the fourth idle roller 74 from above by its own weight. The scraper 75 is provided at the center in the width direction of the free end of the guide plate 77, and on both sides of the scraper 75, a roller 76 that presses both sides of the green sheet 5 in the width direction toward the fourth idle roller 74. , 76 are pivotally supported.

  In FIG. 6, the fourth idle roller 74 changes the conveying direction of the green sheet 5 from a horizontal direction to a substantially right angle downward, and the scraper 75 and the two rollers 76 are formed by the fourth idle roller 74. The green sheet 5 is disposed so as to contact the upper surface of the green sheet 5 at a conversion point in the conveyance direction, and is pressed by the rollers 76 so that both sides in the width direction of the green sheet 5 are along the outer periphery of the fourth idle roller 74. On the other hand, since the central portion in the width direction of the green sheet 5 is not pressed, the substrate 11 accompanying the green sheet 5 easily floats from the fourth idle roller 74, and the substrate 11 is efficiently removed by the scraper 75. 5 and the separated substrate 11 slides down on the guide plate 77. On the other hand, the green sheet 5 after the substrate 11 is separated is sequentially folded below the fourth idle roller 74.

  Next, the operation of this embodiment will be described. While the reel unwinding means 6 and the press 7 are respectively arranged at fixed positions, the green sheet 5 unwound from the reel 13 of the reel unwinding means 6 is bent. The sizing feeding means 8 having the bent portion 5a interposed between the reel unwinding means 6 moves along the feeding direction 18 of the green sheet 5 to adjust the relative position in the approaching / separating direction with respect to the press machine 7. Is arranged on the upstream side of the pressing machine 7 along the feeding direction 18, and the unloading means 9 and the separating means 10 are arranged along the feeding direction 18 to adjust the relative position in the approaching / separating direction with respect to the pressing machine 7. It is arranged on the downstream side along the feeding direction 18 of the press 7 so as to be movable.

  Therefore, when the lower mold 42 and the upper mold 45 of the press machine 7 are exchanged in accordance with the change in the size of the substrate 11, the distance between the molding part and the fixed-size feed means 8 in the both molds 42 and 45 of the press machine 7. And the distance between the forming part and the unloading means 9 can be easily and quickly adjusted to be constant, and the setup work when the required size of the substrate 11 changes can be facilitated. it can. In addition, since the bent portion 5a that bends the green sheet 5 is disposed between the reel unwinding means 6 and the fixed dimension feeding means 8, an excessive load is applied to the green sheet 5 in accordance with the movement of the fixed dimension feeding means 8. Further, the separating means 10 can be moved along the feeding direction 18 of the green sheet 5 with the relative position in the approaching / separating direction relative to the press 7 being adjustable, so that the unloading means 9 and the separating means 10 The relative position can be kept constant.

  Further, the press machine 7 includes a fixed lower mold holder 41 having a plurality of lower positioning pins 57, and a lower mold that is replaceably attached to the lower mold holder 41 while being positioned by the lower position value determining pins 57. An upper mold holder 43 having a mold 42, a plurality of upper positioning pins 48, and arranged to be movable up and down above the lower mold holder 41; The guide means 44 provided between the lower mold holder 41 and the upper mold holder 43 and the upper positioning pins 57 are positioned so as to be opposed to the lower mold 42 while being positioned by the upper positioning pins 57. The upper die 45 is provided.

  That is, in the press machine 7, the relative positions of the lower mold holder 41 and the upper mold holder 43 are determined by the guide means 44 provided between the lower mold holder 41 and the upper mold holder 43, and the lower mold 42 is used as the lower mold holder 41. The upper mold 45 is attached to the upper mold holder 43 while being positioned by the upper positioning pins 48 provided to the upper mold holder 43 while being positioned by the lower positioning pins 57 provided to the upper mold holder 43. A plurality of lower die 42 and upper die 45 units corresponding to the size of the substrate 11 to be formed are prepared in advance, and the unit lower die 42 and upper die corresponding to the change in the size of the substrate 11 are prepared. Since the mold 45 may be attached to the lower mold holder 41 and the upper mold holder 43, the setup work in the press machine 7 according to the required change in the size of the substrate 11 is performed. Easily and can be performed quickly, it may be easier to setup operation.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. It is.

It is a side view of a substrate forming apparatus. It is a 2 arrow top view of FIG. It is a principal part longitudinal cross-sectional view of a press machine. Fig. 4 is a view taken along line 4-4 in Fig. 3. It is a figure which shows the green sheet after the punching completion with a press machine. It is explanatory drawing of the state which isolate | separates a board | substrate by the isolation | separation means.

Explanation of symbols

5 ... Green sheet 6 ... Reel unwinding means 7 ... Pressing machine 8 ... Sizing feed means 9 ... Unloading means 10 ... Separating means 11 ... Substrate 13 ... Reel 18 ... feed direction 41 ... lower mold holder 42 ... lower mold 43 ... upper mold holder 44 ... guide means 45 ... upper mold 48 ... upper position as upper positioning portion Positioning pin 57 ... Lower positioning pin which is the lower positioning part

Claims (2)

  Reel unwinding means (6) having a reel (13) on which a belt-shaped green sheet (5) is wound, a press machine (7) for punching a substrate (11) from the green sheet (5), and reel unwinding The sizing feed means (8) for intermittently feeding the green sheet (5) unwound from the means (6) to the press machine (7), and the green with the substrate (11) after being punched. Unloading means (9) for unloading the sheet (5) from the press machine (7), and separating means (10) for separating the substrate (11) from the green sheet (5) unloaded by the unloading means (9) ) In the feed direction (18) of the green sheet (5) to adjust the relative position in the approaching / separating direction with respect to the press machine (7). It is arranged on the upstream side along the feed direction (18) of the press machine (7) so that it can move, and the unloading means (9) and the separating means (10) are in the approach / separation direction with respect to the press machine (7). The ceramic substrate forming apparatus is characterized in that it can be moved along the feed direction (18) so as to adjust the relative position of the press machine (7) and is arranged downstream of the press machine (7) along the feed direction (18).   The press machine (7) includes a fixed lower mold holder (41) having a plurality of lower positioning parts (57) and the lower mold holder (41) while being positioned by the lower position value determining part (57). A lower mold (42) attached to be replaceable, and an upper mold holder (43) having a plurality of upper positioning portions (48) and arranged to be movable up and down above the lower mold holder (41), The guide means (44) provided between the lower mold (41) holder and the upper mold holder (43) so as to guide the lifting operation of the upper mold holder (43), and the upper positioning portion (48). The ceramic substrate according to claim 1, further comprising: an upper die (45) which is mounted on the upper die holder (43) so as to face the lower die (42) while being positioned. Forming equipment.

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