JP2012020499A - Braille embossing apparatus - Google Patents

Braille embossing apparatus Download PDF

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JP2012020499A
JP2012020499A JP2010160445A JP2010160445A JP2012020499A JP 2012020499 A JP2012020499 A JP 2012020499A JP 2010160445 A JP2010160445 A JP 2010160445A JP 2010160445 A JP2010160445 A JP 2010160445A JP 2012020499 A JP2012020499 A JP 2012020499A
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convex
braille
mold
sheet material
concave
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JP5243494B2 (en
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Tetsuo Yanase
哲夫 柳瀬
Yoshitaka Yanase
吉孝 柳瀬
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Frontier Co Ltd
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Frontier Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a braille embossing apparatus which can form clear braille on a sheet material, and in which a manufacturing of a concave mold and a convex mold for braille-embossing is also easy.SOLUTION: The apparatus has the convex mold 24 and the concave mold 28 braille-embossing the sheet material 16 such as paper. The convex mold 24 is a metal plate and is provided with a plurality of convex parts 24a forming a predetermined braille. The concave mold 28 is composed of a metal plate in which a plurality of through holes 28a corresponding to each convex shape of the braille are formed, and the thickness is thinner than a height of the convex part 24a of the convex mold 24. An elastic body plate 30 such as a polyurethane rubber is laid down on the rear surface 28c of the concave mold 28. In braille-embossing, the sheet material 16 is arranged between the convex mold 24 and the concave mold 28. When the sheet material 16 is pressed to the concave mold 28 side by the convex part 24a of the convex mold 24, the sheet material 16 is pressed by the convex part 24a to project inside the through hole 28a of the concave mold 28, by which the sheet material 16 contacts with the surface of the elastic body plate 30 to protrude into it. The braille by the convex part 24a is formed.

Description

この発明は、厚紙等のシート材にエンボス状の点字を打刻する点字打刻装置に関する。   The present invention relates to a braille stamping device that stamps embossed braille on a sheet material such as cardboard.

従来、厚紙等のシート材にエンボス状の点字を打刻する点字打刻装置として、特許文献１に開示されているように、紙器用ブランクから箱体形成片を打ち抜く際に、箱体形成片に点字を打刻する紙器打抜装置がある。この紙器打抜装置は、切断刃及び罫線刃を突設した抜型と、シート材を載置する面板とが上下に対向配置され、抜型をプレスすることによってシート材から箱体形成片を打ち抜く。さらに、面板の所定位置に、金属板表面に点字打刻用の凸部が形成された凸型（ダイ・プレート）が固定され、凸型の上方に対向配置された抜型にコルクやゴム等の弾力性のある材料で成る受けパッドが固定され、上記プレスのとき、金属製の凸型の凸部を、シート材を挟んで比較的柔らかい受けパッドに押圧することによって、シート材にエンボス状の点字を形成するものである。   2. Description of the Related Art Conventionally, as disclosed in Patent Document 1, as a braille stamping device for stamping embossed braille on a sheet material such as cardboard, a box-forming piece is punched out from a paper container blank. There is a paper punching device that stamps Braille. In this paper punching device, a punching die provided with a cutting blade and a ruled line blade and a face plate on which a sheet material is placed are vertically opposed to each other, and a box forming piece is punched from the sheet material by pressing the punching die. Further, a convex mold (die plate) having a convex portion for braille marking formed on the surface of the metal plate is fixed at a predetermined position on the face plate, and cork, rubber, etc. A receiving pad made of an elastic material is fixed, and at the time of pressing, an embossed shape is formed on the sheet material by pressing the convex convex portion made of metal against a relatively soft receiving pad with the sheet material interposed therebetween. It forms braille.

また、特許文献２に開示されているように、金属部材表面に点字などのエンボスを形成する凹部が設けられた凹型と、それに対応する凸部が形成された凸型とを備え、凹型及び凸型の一方が第１の面板に取り付けられ、他方が第２の面板に取り付けられ、凹型を凸型のいずれか一方が弾性体で支持されているエンボス形成装置がある。このエンボス形成装置は、金属製の凸型の凸部を、シート材を挟んで金属製の凹型に押圧することによって、シート材にエンボス状の点字を形成するものである。このとき、凹型又は凸型を支持する弾性体の弾撥力によってシート材の塑性変形の進行が緩やかになり、エンボスを比較的明瞭に形成することができる。   In addition, as disclosed in Patent Document 2, the metal member has a concave shape in which a concave portion for forming an emboss such as Braille is provided on the surface of the metal member, and a convex shape in which a convex portion corresponding to the concave shape is formed. There is an embossing apparatus in which one of the molds is attached to a first face plate, the other is attached to a second face plate, and either one of the concave mold and the convex mold is supported by an elastic body. This emboss forming device forms embossed braille on a sheet material by pressing a metal convex convex portion against a metal concave mold with the sheet material interposed therebetween. At this time, the progress of plastic deformation of the sheet material is moderated by the elastic force of the elastic body supporting the concave shape or the convex shape, so that the emboss can be formed relatively clearly.

特開平１１−１５６７９９号公報JP 11-156799 A 特開２００４−２６８４６４号公報JP 2004-268464 A

しかし、特許文献１の紙器打抜装置の場合、凹型に相当する受けパッド全体が柔らかい素材のため、シート材の平坦な面とエンボスとの境界部分の塑性変形が不安定で不均一になり、点字が不鮮明になりやすいという問題があった。   However, in the case of the paper container punching device of Patent Document 1, since the entire receiving pad corresponding to the concave shape is a soft material, the plastic deformation of the boundary portion between the flat surface of the sheet material and the emboss becomes unstable and non-uniform, There was a problem that the Braille tends to be unclear.

一方、特許文献２のエンボス形成装置の場合、凹型の凹部と凸型の凸部の形状は、シート材の厚みを考慮して設定され、凸型の凸部をシート材を挟んで凹型に押圧したときに、シート材の点字の部分が凹部内面と凸部外面との間に密着して挟むことができるように設定されている。しかし、点字を打刻するとき、例えば、シート材のばらつきで厚みが厚くなると、凸部が凹部に深く嵌合することができず、シート材の平坦面とエンボスとの境界部分の塑性変形が不均一になって点字が不鮮明になりやすい。また、装置のセッティングの誤差によって凹型と凸型の相対的位置が僅かにずれると、凹部内面と凸部外面との間にシート材を挟んだときに隙間ができ、その隙間にあるシート材の部分の塑性変形が良好に行われず破れが発生するおそれがある。また、シート材の点字の部分に傷がつかないようにするため、凹部及び凸部の表面を滑らかに仕上げることが好ましいが、凹部をボールエンドミル等で切削加工すると凹部の開口縁にエッジやバリが残りやすく、放電加工による形成はコストや工数がかかるものである。また、凸部を形成するとき、金属部材表面に感光性フィルムを所定パターンに焼き付けた後、エッチングする方法があるが、非常に手間が掛かるものである。従って、薄手のシート材に点字を打刻するのに適した凹型及び凸型を製作するのは容易ではなくコストも掛かるものであった。   On the other hand, in the case of the embossing device disclosed in Patent Document 2, the shape of the concave concave portion and the convex convex portion is set in consideration of the thickness of the sheet material, and the convex convex portion is pressed against the concave shape with the sheet material interposed therebetween. When this is done, the braille portion of the sheet material is set so as to be tightly sandwiched between the inner surface of the concave portion and the outer surface of the convex portion. However, when engraving Braille, for example, if the thickness increases due to variations in the sheet material, the convex portion cannot be fitted deeply into the concave portion, and the plastic deformation of the boundary portion between the flat surface of the sheet material and the embossing is caused. Braille tends to be unclear due to unevenness. In addition, if the relative position of the concave mold and the convex mold is slightly shifted due to an error in the setting of the apparatus, a gap is formed when the sheet material is sandwiched between the concave inner surface and the convex outer surface, and the sheet material in the gap is formed. There is a risk that the plastic deformation of the portion is not performed well and tearing occurs. In order to prevent the braille portion of the sheet material from being scratched, it is preferable to finish the surface of the concave portion and the convex portion smoothly. However, when the concave portion is cut with a ball end mill or the like, an edge or burrs are formed on the opening edge of the concave portion. The formation by electric discharge machining is costly and man-hours. Moreover, when forming a convex part, there exists the method of etching, after baking a photosensitive film on the metal member surface in a predetermined pattern, but it takes a lot of labor. Therefore, it is not easy and costly to produce a concave shape and a convex shape suitable for embossing braille on a thin sheet material.

この発明は、上記背景技術に鑑みて成されたものであり、シート材に明瞭な点字を形成することができ、点字打刻用の凹型及び凸型の製作も容易な点字打刻装置を提供することを目的とする。   The present invention has been made in view of the above-described background art, and provides a Braille stamping device that can form clear Braille on a sheet material and can easily manufacture concave and convex Braille stamps. The purpose is to do.

この発明は、凸型と凹型によりシート材にエンボス状の点字を打刻する点字打刻装置であって、前記凸型は、金属製であり所定の点字を形成する複数の凸部が設けられ、前記凹型は、点字の凸形状に各々対応した複数の透孔が形成されていると共に、厚みが前記凸型の前記凸部の高さよりも薄い金属板からなり、この金属板の裏面に弾性体板が敷設され、点字を打刻する際に、前記凸型と前記凹型との間に前記シート材を配置し、前記凸型の凸部により前記シート材を前記凹型側に押圧すると、前記シート材が前記凸部に押されて前記凹型の前記透孔内に突出し、前記金属板裏面の前記弾性体板表面に前記シート材が接して食い込むことにより、前記凸部による点字が形成される点字打刻装置である。   The present invention is a braille embossing device for embossing braille on a sheet material by a convex mold and a concave mold, wherein the convex mold is made of metal and provided with a plurality of convex portions forming predetermined braille. The concave mold is formed of a metal plate having a plurality of through holes each corresponding to a convex shape of Braille and having a thickness thinner than the height of the convex portion of the convex mold. When the body plate is laid and when the braille is engraved, the sheet material is disposed between the convex mold and the concave mold, and when the sheet material is pressed to the concave mold side by the convex convex portion, When the sheet material is pushed by the convex portion and protrudes into the concave through hole, and the sheet material contacts and bites into the elastic plate surface on the back surface of the metal plate, braille is formed by the convex portion. Braille stamping device.

また、前記凸型が上型であり、前記凹型が下型となり、前記上型に隣接して前記シート材を所定形状に切断する切断刃と、前記シート材に折罫線を形成する罫線刃とを備えている。また、前記凸型は、金属板をプレス加工して前記凸部が形成されたものである。また、前記凹型は、金属板を打ち抜いて前記透孔が形成されたものであり、前記凹型のバリ面に前記弾性体板が敷設され、前記凸型の前記凸部に押された前記シート材が前記凹型のダレ面の側から前記透孔内に突出する。また、前記弾性体板は、素材がポリウレタンゴムである。   Further, the convex mold is an upper mold, the concave mold is a lower mold, a cutting blade that cuts the sheet material into a predetermined shape adjacent to the upper mold, and a ruled line blade that forms a crease line on the sheet material It has. The convex mold is formed by pressing the metal plate to form the convex portion. In addition, the concave mold is formed by punching a metal plate to form the through hole, and the elastic plate is laid on the concave burr surface of the concave mold, and the sheet material pressed by the convex section of the convex mold. Protrudes into the through hole from the side of the concave sag surface. The elastic plate is made of polyurethane rubber.

この発明の点字打刻装置は、シート材の点字の突起部分は、凹部の透孔の中に深く突出することができ、弾性体板表面と凸部の外側面との間に密着して挟まれながら塑性変形が進行するので、シート材の厚みがばらついたり、凹型と凸型の相対的位置が多少ずれても、弾性体板によりそれらの誤差要因を吸収して、シート材の点字部分に破れが発生しにくく、安定して鮮明な点字を形成することができる。   In the Braille embossing device of the present invention, the Braille protrusions of the sheet material can protrude deeply into the through holes of the recesses, and are tightly sandwiched between the elastic plate surface and the outer surface of the projections. However, even if the thickness of the sheet material varies or the relative positions of the concave and convex shapes slightly deviate, the elastic plate absorbs these error factors, and the sheet material becomes braille. It is difficult for tearing to occur, and stable and clear Braille can be formed.

また、凸型、凹型ともに簡単な方法で安価に製作することができる。特に、打ち抜きによって凹型に透孔を形成した場合、打ち抜き方向の表面をシート材側に向けて取り付けることにより、点字の打刻時のシート材の損傷を抑えることができる。   In addition, both convex and concave molds can be manufactured at low cost by a simple method. In particular, when the through hole is formed in the concave mold by punching, damage to the sheet material at the time of stamping Braille can be suppressed by attaching the surface in the punching direction toward the sheet material side.

この発明の一の実施形態の点字打刻装置を示す断面図である。It is sectional drawing which shows the braille stamping apparatus of one Embodiment of this invention. この実施形態の点字打刻装置の凸型を示す斜視図（ａ）、凹型を示す斜視図（ｂ）である。It is the perspective view (a) which shows the convex type of the braille stamping apparatus of this embodiment, and the perspective view (b) which shows a concave type. この実施形態の点字打刻装置が点字を打刻している様子を示す縦断面図である。It is a longitudinal cross-sectional view which shows a mode that the braille stamping apparatus of this embodiment is stamping Braille. この実施形態の点字打刻装置によって、シート材が変形して凸形状になる様子を説明する部分断面図（ａ），（ｂ），（ｃ）である。It is partial sectional drawing (a), (b), (c) explaining a mode that a sheet | seat material deform | transforms into a convex shape by the braille stamping apparatus of this embodiment. この実施形態の点字打刻装置によって形成した箱体形成片の裏面側から見た平面図である。It is the top view seen from the back surface side of the box body formation piece formed with the braille stamping apparatus of this embodiment.

以下、この発明の一実施形態の点字打刻装置１０について、図面に基づいて説明する。点字打刻装置１０は、厚紙などのブランクシートであるシート材１６から、図５に示すような箱体形成片１５を打ち抜き加工すると共に、同時に箱体形成片１５に点字１７を打刻する装置である。   Hereinafter, a braille stamping apparatus 10 according to an embodiment of the present invention will be described with reference to the drawings. The braille stamping apparatus 10 punches a box-shaped piece 15 as shown in FIG. 5 from a sheet material 16 that is a blank sheet such as cardboard, and simultaneously stamps a braille 17 on the box-shaped piece 15. It is.

点字打刻装置１０は、図１に示すように、基台１２の上方に、プレス用の抜型１４が設けられている。抜型１４は、箱体形成片よりも大きい外形の基板１８を有しており、基板１８には、切断刃２０、罫線刃２２及び凸型２４が一体に取り付けられ、図示しないガイドピンに誘導されて上下移動する。切断刃２０は、シート材１６から箱体形成片を切り出すためのトムソン刃等の切断部材で、鋭利な刃先２０ａが基台１２に向けて突出している。罫線刃２２は、箱体形成片の所定位置に折罫線を押圧するための部材で、先端が丸められた刃先２２ａが基台１２に向けて突出している。   As shown in FIG. 1, the braille stamping apparatus 10 is provided with a punching die 14 for pressing above the base 12. The die 14 has a substrate 18 having an outer shape larger than that of the box-forming piece. A cutting blade 20, a ruled blade 22 and a convex die 24 are integrally attached to the substrate 18 and guided to a guide pin (not shown). Move up and down. The cutting blade 20 is a cutting member such as a Thomson blade for cutting out a box-forming piece from the sheet material 16, and a sharp cutting edge 20 a protrudes toward the base 12. The ruled line blade 22 is a member for pressing a crease line at a predetermined position of the box-forming piece, and a blade edge 22 a having a rounded tip protrudes toward the base 12.

凸型２４は、図１、図２（ａ）に示すように、所定の点字を形成する複数の凸部２４ａが設けられた矩形の金属板であり、凸部２４ａは、プレス加工によってエンボス状に形成されている。凸型２４は、凸部２４ａが突出している側の表面２４ｂを基台１２の側に向け、裏面２４ｃを基板１８の下面に当接配置し、長手方向の両端に設けられた取付孔２６に図示しないボルトが挿通され締め付け固定されている。凸型２４を基板１８に固定する方法は自由に変更することができ、例えば、一定以上の吸着力を有するマグネットを用いて着脱可能な構造にしてもよい。   As shown in FIG. 1 and FIG. 2A, the convex mold 24 is a rectangular metal plate provided with a plurality of convex portions 24a that form a predetermined Braille. The convex portion 24a is embossed by pressing. Is formed. The convex mold 24 has the surface 24b on the side from which the convex portion 24a protrudes facing the base 12, and the back surface 24c is in contact with the lower surface of the substrate 18. The mounting holes 26 are provided at both ends in the longitudinal direction. A bolt (not shown) is inserted and fixed. The method of fixing the convex mold 24 to the substrate 18 can be freely changed. For example, a structure in which the convex mold 24 can be attached and detached using a magnet having a certain level of attracting force may be used.

抜型１４の下方に対面する基台１２上には、凸型２４の凸部２４ａに各々対応する複数の透孔２８ａが形成された凹型２８が配置されている。凹型２８は、図１、図２（ｂ）に示すように、厚みが凸型２４の凸部２４ａの高さよりも薄い矩形の金属板であり、透孔２８ａは、表面２８ｂから裏面２８ｃの向きに打ち抜いて形成されている。凹型２８は、ダレ面である表面２８ｂを抜型１４の側に向け、バリ面である裏面２４ｃにポリウレタンゴムで成る弾性体板３０を敷設して基台１２上に配置し、長手方向の両端に設けた取付孔３２に図示しないボルトが挿通され締め付け固定されている。凹型２８を基台１２に固定する方法は自由に変更することができ、例えば、一定以上の吸着力を有するマグネットを用いて着脱可能な構造にしてもよい。   On the base 12 facing the lower side of the die 14, a concave die 28 having a plurality of through holes 28 a respectively corresponding to the convex portions 24 a of the convex die 24 is disposed. As shown in FIGS. 1 and 2B, the concave mold 28 is a rectangular metal plate whose thickness is thinner than the height of the convex section 24 a of the convex mold 24, and the through hole 28 a is oriented from the front surface 28 b to the back surface 28 c. It is formed by punching. The concave mold 28 is disposed on the base 12 by placing an elastic plate 30 made of polyurethane rubber on the back surface 24c which is a burr face with the front surface 28b which is a sag surface facing the die 14 and on both ends in the longitudinal direction. A bolt (not shown) is inserted into the provided mounting hole 32 and fastened. The method of fixing the concave mold 28 to the base 12 can be freely changed. For example, a structure that can be attached and detached using a magnet having a certain level or more of attractive force may be used.

基台１２上には、凹型２８の側方の位置に、切断刃２０の刃先２０ａ及び罫線刃２２の刃先２２ａを受ける受け部材３４，３６が各々取り付けられている。受け部材３４，３６は弾性体であり、ここではポリウレタンゴムが用いられている。受け部材３４の表面には、切断刃２０の刃先２０ａが当接する金属板２９が取り付けられている。   On the base 12, receiving members 34 and 36 that receive the cutting edge 20 a of the cutting blade 20 and the cutting edge 22 a of the ruled line blade 22 are attached to positions on the side of the concave mold 28. The receiving members 34 and 36 are elastic bodies, and polyurethane rubber is used here. A metal plate 29 with which the cutting edge 20 a of the cutting blade 20 abuts is attached to the surface of the receiving member 34.

次に、点字打刻装置１０の動作について説明する。まず、図１に示すように、基台１２の上方に紙器ブランクであるシート材１６が投入される。シート材１６に表裏がある場合は、凹型２８側に点字が突出するので、凹型２８の側が表面１６ａに、反対側が裏面１６ｂになるように投入される。点字を打刻するときは、図２に示すように、抜型１４が下降し、切断刃２０の刃先２０ａがシート材１６を挟んで受け部材３４の金属板２９に当接するようにシート材１６に食い込み、シート材１６から箱体形成片１５が切り出される。このとき、受け部材３４は僅かに弾性変形して圧縮された状態で、シート材１６が切断される。一方、罫線刃２２の刃先２２ａは、シート材１６を挟んで受け部材３６に食い込み、シート材１６の箱体形成片１５の所定位置に折罫線１９が形成される。さらに、凸型２４の凸部２４ａと凹型の透孔２８ａとがシート材１６を挟んで互いに嵌合することによってシート材１６が塑性変形し、箱体形成片１５にエンボス状の点字１７が形成される。その後、抜型１４が上昇し、点字１７が打刻された箱体形成片１５を取り出すことができる。   Next, the operation of the braille stamping device 10 will be described. First, as shown in FIG. 1, a sheet material 16 that is a paper container blank is placed above the base 12. When the sheet material 16 has front and back surfaces, braille protrudes toward the concave mold 28 side, so that the concave mold 28 side is placed on the front surface 16a and the opposite side is the back surface 16b. When stamping Braille, as shown in FIG. 2, the die 14 is lowered, and the cutting edge 20 of the cutting blade 20 is brought into contact with the metal plate 29 of the receiving member 34 with the sheet material 16 interposed therebetween. The box forming piece 15 is cut out from the sheet material 16 by biting. At this time, the sheet member 16 is cut while the receiving member 34 is slightly elastically deformed and compressed. On the other hand, the blade edge 22 a of the ruled line blade 22 bites into the receiving member 36 with the sheet material 16 interposed therebetween, and a crease line 19 is formed at a predetermined position of the box forming piece 15 of the sheet material 16. Further, the convex portion 24a of the convex mold 24 and the concave through hole 28a are fitted to each other with the sheet material 16 interposed therebetween, so that the sheet material 16 is plastically deformed, and an embossed braille 17 is formed in the box forming piece 15. Is done. Thereafter, the die 14 is raised, and the box-forming piece 15 on which the braille 17 is engraved can be taken out.

シート材１６にエンボス状の点字１７が形成される詳細な動作は、図４のように表わされる。まず、抜型１４が下降すると、図４（ａ）に示すように、凸型２４の凸部２４ａの先端がシート材１６の裏面１６ｂに当接する。さらに抜型１４が下降すると、透孔２８ａ上にあるシート材１６の部分が凸部２４ａによって押圧され、凹型２８の透孔２８ａ内に突出しながら塑性変形が始まる。その後、シート材１６の表面１６ａが弾性体板３２に達する。このとき、凹型２８の厚みが凸部２４ａの高さよりも薄いので、図４（ｂ）に示すように、凸型２４の表面２４ｂはシート材１６の裏面１６ｂに当接していない。   The detailed operation of forming the embossed braille 17 on the sheet material 16 is expressed as shown in FIG. First, when the die 14 is lowered, the tip of the convex portion 24a of the convex mold 24 comes into contact with the back surface 16b of the sheet material 16 as shown in FIG. When the die 14 is further lowered, the portion of the sheet material 16 on the through hole 28a is pressed by the convex portion 24a, and plastic deformation starts while protruding into the through hole 28a of the concave die 28. Thereafter, the surface 16 a of the sheet material 16 reaches the elastic plate 32. At this time, since the thickness of the concave mold 28 is thinner than the height of the convex portion 24a, the front surface 24b of the convex mold 24 is not in contact with the back surface 16b of the sheet material 16 as shown in FIG.

さらに抜型１４が下降すると、透孔２８ａ内のシート材１６が凸部２４ａによって押圧され、凸部２４ａと弾性体板３２に挟まれた状態で弾性体板３２に食い込み、塑性変形がさらに進行する。そして、凸型２４の表面２４ｂがシート材１６の裏面１６ｂに当接すると、図４（ｃ）に示すように、凸部２４ａと透孔２８ａとの相対位置が固定されるので、透孔２８ａ内のシート材１６の塑性変形の進行が止まり、抜型１４の下降が停止し打刻が終了する。そして、抜型１４が上昇すると、シート材１６が凸型２４及び凹型２８から解放されるが、エンボス形状はそのまま維持され、点字１７の突起として残る。同時に、切断刃２０によりシート材１６から箱体形成片１５が切り抜かれ、罫線刃２２により折罫線１９が形成される。   When the die 14 is further lowered, the sheet material 16 in the through hole 28a is pressed by the convex portion 24a and bites into the elastic plate 32 while being sandwiched between the convex portion 24a and the elastic plate 32, and plastic deformation further proceeds. . When the front surface 24b of the convex mold 24 comes into contact with the back surface 16b of the sheet material 16, the relative position between the convex portion 24a and the through hole 28a is fixed as shown in FIG. The progress of plastic deformation of the inner sheet material 16 is stopped, the lowering of the die 14 is stopped, and the stamping is finished. When the punching die 14 is raised, the sheet material 16 is released from the convex mold 24 and the concave mold 28, but the embossed shape is maintained as it is and remains as a braille 17 protrusion. At the same time, the box forming piece 15 is cut out from the sheet material 16 by the cutting blade 20, and the crease line 19 is formed by the ruled line blade 22.

ここで、弾性体板３０、受け部材３４，３６に使用されている材料は、適度な弾性を有し、機械的強度や耐摩耗性等の面で優れたものを選択する必要がある。特に、弾性体板３０は、軟らかすぎ又は厚すぎると、点字を打刻するときに凹型２８の沈み込みが大きくなってシート材１６に十分な押圧力が加わらず、反対に、弾性体板３０が硬すぎ又は薄過ぎると、凸型２４の凸部２４ａが凹部２８ａの透孔２８ａ内に深く突出することができず、いずれの場合も点字が不鮮明になる等の問題が生じる。従って、弾性体板３０であれば、例えば、２〜５ｍｍ程度の厚さでゴム硬度が８５〜９５程度のポリウレタンゴムが好適である。   Here, it is necessary to select a material used for the elastic plate 30 and the receiving members 34 and 36 that has appropriate elasticity and is excellent in terms of mechanical strength and wear resistance. In particular, if the elastic plate 30 is too soft or too thick, when the braille is engraved, the depression 28 is greatly depressed, and a sufficient pressing force is not applied to the sheet material 16. If it is too hard or too thin, the convex portion 24a of the convex mold 24 cannot protrude deeply into the through hole 28a of the concave portion 28a, and in either case, problems such as unclear Braille occur. Therefore, for the elastic plate 30, for example, polyurethane rubber having a thickness of about 2 to 5 mm and a rubber hardness of about 85 to 95 is suitable.

以上説明したように、点字打刻装置１０は、凸型２４の凸部２４ｂと嵌合するのが凹部２８の透孔２８ａなので、点字を打刻するとき、シート材１６の厚みがばらついたり、凹型２８と凸型２４の相対的位置や凸型２４のストロークが多少ずれても、凸型２４の凸部２４ａが透孔２８ｂの中に深く突出することができる。従って、各部材の寸法精度は比較的低いもので良く、凸型２４のストローク調整も容易である。さらに、抜型１４の相対的な傾きや基台１２の平面度が低くても、弾性体板３０によりそれらの誤差要因を吸収することができ、鮮明な点字１７を形成することができる。また、透孔２８ａの中に入り込んだシート材の部分は、弾性体板３２上面と凸部２４ａの外側面との間に密着して挟まれながら塑性変形が進行する。従って、シート材に破れが発生しにくく、この点からも安定して鮮明な点字１７を形成することができる。   As described above, the braille embossing device 10 is fitted with the convex portion 24b of the convex mold 24 because the through hole 28a of the concave portion 28. Therefore, when braille is engraved, the thickness of the sheet material 16 varies, Even if the relative position of the concave mold 28 and the convex mold 24 and the stroke of the convex mold 24 are slightly shifted, the convex portion 24a of the convex mold 24 can protrude deeply into the through hole 28b. Accordingly, the dimensional accuracy of each member may be relatively low, and the stroke adjustment of the convex mold 24 is easy. Furthermore, even if the relative inclination of the die 14 and the flatness of the base 12 are low, those error factors can be absorbed by the elastic plate 30, and the clear Braille 17 can be formed. In addition, the portion of the sheet material that has entered the through hole 28a undergoes plastic deformation while being in close contact with and sandwiched between the upper surface of the elastic plate 32 and the outer surface of the convex portion 24a. Therefore, the sheet material is not easily broken, and the braille 17 can be formed stably and clearly from this point.

さらに、この点字打刻装置１０は、金属製の凹型２８で点字１７の根元の形状を形成し、弾性体板３０と凸型２４により点字１７の先端部を形成するので、紙等のシート材１６に無理な力を掛けることなく明瞭な点字１７を形成することができる。しかも点字１７の形成後、弾性体板３０の反発により、シート材１６が押し出され、箱体形成片１５の取り出しが容易である。   Further, the braille stamping device 10 forms the base shape of the braille 17 with the metal concave mold 28, and forms the leading end of the braille 17 with the elastic plate 30 and the convex mold 24. Clear Braille 17 can be formed without applying excessive force to 16. Moreover, after the braille 17 is formed, the elastic plate 30 is repelled, so that the sheet material 16 is pushed out, and the box-forming piece 15 can be easily taken out.

また、凸部２４ａ及び透孔２８ａは、金属板をプレス加工して凸部２４ａを形成し、凹型２８については金属板を打ち抜いて透孔２８ａを形成することができ、凸型２４や凹型２８を安価に精密に形成することができる。また、透孔２８ａを打ち抜いて製作した凹型２８のバリ面を裏面２８ｃとして弾性体板３２側に配置し、ダレ面を表面２８ｂとしてシート材１６側に配置することにより、打刻時にシート材１６を傷つける心配もない。   The convex portion 24a and the through hole 28a can be formed by pressing a metal plate to form the convex portion 24a. For the concave mold 28, the metal plate can be punched to form the through hole 28a. Can be accurately formed at low cost. Further, the burr face of the concave mold 28 produced by punching the through hole 28a is disposed on the elastic plate 32 side as the back surface 28c, and the sag surface is disposed on the sheet material 16 side as the front surface 28b. There is no worry about hurting.

なお、この発明の点字打刻装置は、上記実施形態に限定されるものではない。例えば、凹型、凸型を構成する金属板の外形は、シート材に打刻する点字の数やレイアウトに応じて、矩形、台形、多角形、円形、楕円形など自由に設定することができる。シート材は、紙以外に、樹脂製のシートや、樹脂と紙のラミネート材、金属薄板等でも良く、この発明の点字打刻装置は、適宜の材料のものに適用可能である。   In addition, the braille stamping apparatus of this invention is not limited to the said embodiment. For example, the outer shape of the metal plate constituting the concave shape or the convex shape can be freely set such as a rectangle, a trapezoid, a polygon, a circle, and an ellipse according to the number of brailles to be stamped on the sheet material and the layout. In addition to paper, the sheet material may be a resin sheet, a resin-paper laminate, a thin metal plate, or the like, and the Braille stamping apparatus of the present invention can be applied to any appropriate material.

また、点字打刻装置に投入されるシート材が既に所定の外形に裁断されている場合、あるいは、シート材に折罫線を形成する必要がない場合は、切断刃、罫線刃、受け部材の構成を省略することができる。   In addition, when the sheet material put into the braille engraving device is already cut into a predetermined shape, or when it is not necessary to form a crease line on the sheet material, the configuration of the cutting blade, the crease blade, and the receiving member Can be omitted.

また、上記実施形態と逆に、凸型を基台に取り付け、凹型及び弾性体板を基板に取り付ける構造や、切断刃及び罫線刃を基台に取り付け、個々の受け部材を基板に取り付ける構造に変更してもよい。何れも場合も、上記実施形態の場合と同様の作用効果を得ることができる。   Contrary to the above embodiment, the convex type is attached to the base, the concave type and the elastic plate are attached to the substrate, the cutting blade and the ruled line blade are attached to the base, and the individual receiving members are attached to the substrate. It may be changed. In either case, the same effects as those in the above embodiment can be obtained.

１０ 点字打刻装置
１６ シート材
２０ 切断刃
２２ 罫線刃
２４ 凸型
２４ａ 凸部
２８ 凹型
２８ａ 透孔
２８ｃ 裏面
３０ 弾性体板
DESCRIPTION OF SYMBOLS 10 Braille cutting apparatus 16 Sheet material 20 Cutting blade 22 Ruled line blade 24 Convex type 24a Convex part 28 Concave type 28a Through-hole 28c Back surface 30 Elastic body board

Claims (5)

凸型と凹型によりシート材にエンボス状の点字を打刻する点字打刻装置において、
前記凸型は、金属製であり所定の点字を形成する複数の凸部が設けられ、前記凹型は、点字の凸形状に各々対応した複数の透孔が形成されていると共に、厚みが前記凸型の前記凸部の高さよりも薄い金属板からなり、この金属板の裏面に弾性体板が敷設され、点字を打刻する際に、前記凸型と前記凹型との間に前記シート材を配置し、前記凸型の凸部により前記シート材を前記凹型側に押圧すると、前記シート材が前記凸部に押されて前記凹型の前記透孔内に突出し、前記金属板裏面の前記弾性体板表面に前記シート材が接して食い込むことにより、前記凸部による点字が形成されることを特徴とする点字打刻装置。 In a braille stamping device that stamps embossed braille on a sheet material by a convex mold and a concave mold,
The convex mold is made of metal and provided with a plurality of convex portions that form a predetermined Braille, and the concave mold is formed with a plurality of through holes corresponding to the convex shapes of the Braille, and the thickness is the convex. It is made of a metal plate thinner than the height of the convex portion of the mold, and an elastic plate is laid on the back surface of the metal plate, and when the braille is engraved, the sheet material is placed between the convex die and the concave die. When the sheet material is pressed against the concave mold side by the convex convex portion, the sheet material is pushed by the convex portion and protrudes into the concave through hole, and the elastic body on the back surface of the metal plate A Braille embossing device characterized in that Braille by the convex portion is formed by the sheet material coming into contact with the surface of the plate. 前記凸型が上型であり、前記凹型が下型となり、前記上型に隣接して前記シート材を所定形状に切断する切断刃と、前記シート材に折罫線を形成する罫線刃とを備えた請求項１記載の点字打刻装置。   The convex mold is an upper mold, the concave mold is a lower mold, and includes a cutting blade that cuts the sheet material into a predetermined shape adjacent to the upper mold, and a ruled line blade that forms a crease line on the sheet material. The braille stamping device according to claim 1. 前記凸型は、金属板をプレス加工して前記凸部が形成されたものである請求項１記載の点字打刻装置。   The braille stamping device according to claim 1, wherein the convex mold is formed by pressing a metal plate to form the convex portion. 前記凹型は、金属板を打ち抜いて前記透孔が形成されたものであり、前記凹型のバリ面に前記弾性体板が敷設され、前記凸型の前記凸部に押された前記シート材が前記凹型のダレ面の側から前記透孔内に突出する請求項１記載の点字打刻装置。   The concave mold is formed by punching a metal plate to form the through-hole, the elastic plate is laid on the concave burr surface, and the sheet material pushed by the convex portion of the convex mold The braille stamping device according to claim 1, wherein the braille stamping device projects into the through-hole from the concave sag surface side. 前記弾性体板は、ポリウレタンゴムから成る請求項１記載の点字打刻装置。
The braille stamping device according to claim 1, wherein the elastic plate is made of polyurethane rubber.
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CN104985873A (en) * 2015-07-22 2015-10-21 湖州旺翔纸业包装有限公司 Corrugated carton printing device
US10744548B2 (en) 2017-03-07 2020-08-18 Toyota Jidosha Kabushiki Kaisha Stamping device
CN113183672A (en) * 2021-04-25 2021-07-30 浙江元金印刷有限公司 Improved braille printing method
CN113183672B (en) * 2021-04-25 2024-02-27 浙江元金包装有限公司 Improved braille printing method

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