JPS625920Y2 - - Google Patents
Info
- Publication number
- JPS625920Y2 JPS625920Y2 JP1981084526U JP8452681U JPS625920Y2 JP S625920 Y2 JPS625920 Y2 JP S625920Y2 JP 1981084526 U JP1981084526 U JP 1981084526U JP 8452681 U JP8452681 U JP 8452681U JP S625920 Y2 JPS625920 Y2 JP S625920Y2
- Authority
- JP
- Japan
- Prior art keywords
- curvature
- radius
- packaging
- shape
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004806 packaging method and process Methods 0.000 claims description 31
- 229920006280 packaging film Polymers 0.000 claims description 18
- 239000012785 packaging film Substances 0.000 claims description 18
- 238000004080 punching Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 8
- 239000005022 packaging material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Wrappers (AREA)
Description
【考案の詳細な説明】
本案はブリスタ包装機における包装シート打抜
き形状に関し、更に詳細には、帯状に連続包装
し、これをシートに打抜くブリスタ包装機におい
て、包装フイルムのスクラツプとなる部分を少な
くしてその包装フイルムを無駄なく活用できるよ
うにするための包装シートの打抜き形状に関す
る。[Detailed description of the invention] This invention relates to the shape of a packaging sheet punched out in a blister packaging machine, and more specifically, in a blister packaging machine that continuously wraps in a band shape and punches it into a sheet, the part of the packaging film that becomes scrap is reduced. The present invention relates to a punching shape of a packaging sheet so that the packaging film can be used without waste.
ブリスタ包装機において包装する場合、上下２
枚の連続する帯状の包装フイルム間に被包装物を
一定の間隔で並べて帯状に包装し、その帯状の包
装体から所望の大きさの包装シートに打ち抜く方
法が採用されている。この包装シートの打抜きに
際し、包装フイルムの送りに送りむらが生じるこ
とから、その送りむらを考慮に入れて隣接する打
抜き部分の間に間隔を設け、包装シートの打抜き
後のスクラツプフイルム１に第１図に示されるよ
うに包装フイルムの幅方向に伸びる残部２が形成
されるようにしている。 When packaging with a blister packaging machine, upper and lower 2
A method has been adopted in which the items to be packaged are lined up at regular intervals between successive strip-shaped packaging films, wrapped in a strip, and the strip-shaped package is punched into packaging sheets of a desired size. When punching this packaging sheet, uneven feeding of the packaging film occurs, so taking this uneven feeding into consideration, a space is provided between adjacent punched parts, and the scrap film 1 after punching the packaging sheet is As shown in FIG. 1, a remaining portion 2 extending in the width direction of the packaging film is formed.
ところが従来の打抜き方法では、残部２の幅が
２〜５mmもあつてそれらが全てスクラツプとして
廃棄されていたため、包装フイルムが無駄になつ
ていた。 However, in the conventional punching method, the remaining portion 2 had a width of 2 to 5 mm and was completely discarded as scrap, resulting in wasted packaging film.
このような包装フイルムの無駄をなくすために
は、包装フイルムの送り量を従来よりも小さくし
て残部２が残らない程度にすればよいが、単に送
り量を包装シートの長さ（包装フイルムの送り方
向に計つた寸法）と同一にしただけでは、包装フ
イルムの送りにむらがあるため、打抜き干渉が生
じて第２図Ａにおいて５で示されるように前の包
装シートの打抜き形状と部分的に重なり合つてし
まう場合が生じ、第２図Ｂに示されるように、打
ち抜かれた包装シート３の角部に三角状の凸部４
が残り、製品の美観を損なうことになる。 In order to eliminate such waste of packaging film, the amount of packaging film to be fed can be made smaller than before to the extent that no residue 2 remains. If the dimensions are the same (measured in the feeding direction), the feeding of the packaging film will be uneven, resulting in interference with the punching, and as shown by 5 in FIG. As shown in FIG.
remains, impairing the beauty of the product.
このような従来の問題を解決するための方法が
本出願人による特願昭52−47600号「包装シート
の打抜き方法」によつて提供されたが、この方法
によつて打抜かれた包装シートは第２図Ｃに示さ
れるように、四隅に付けられた丸味の曲率半径γ
１，γ２の相違から、形状が長手方向軸線Ｚ−Ｚ
を中心とした左右の形状が非対称となつて見栄え
が悪くなる欠点があつた。 A method for solving such conventional problems was provided by the applicant in Japanese Patent Application No. 52-47600 entitled "Method for Punching Packaging Sheets", but packaging sheets punched by this method were As shown in Figure 2C, the radius of curvature γ of the rounded corners is
1 and γ 2 , the shape is along the longitudinal axis Z-Z
The problem was that the left and right shapes around the center were asymmetrical, resulting in poor appearance.
したがつて本考案の目的は、包装シートの前側
（包装フイルムの送り方向に見て）の二つの隅部
の丸味を互いに曲率半径が異なりかつ連続する二
種の円弧状曲線に沿つて打ち抜くことにより包装
材の有効利用を確保しつつ包装シートの外形をほ
ぼ対称形状にして見栄えを良くすることである。 Therefore, the purpose of the present invention is to punch out the roundness of the two corners of the front side of the packaging sheet (as viewed in the direction in which the packaging film is fed) along two continuous arcuate curves that have different radii of curvature. The objective is to make the outer shape of the packaging sheet almost symmetrical and improve its appearance while ensuring effective use of the packaging material.
本考案は、帯状の包装フイルムから、該包装フ
イルムの送り方向にほぼ平行な二つの側縁と該送
り方向にほぼ直角の前縁および後縁とで限定され
る四角形の四隅に所望の曲率半径の曲線にしたが
つて丸味を付けた打抜き形状で包装シートを、打
ち抜く包装シートの打抜き形状において、該後縁
の両端の隅部における丸味を該後縁および側縁に
接する単一の円弧状曲線で形成し、該前縁の両端
の隅部における丸味を、該側縁に接しかつ該後縁
および側縁に接する該円弧状曲線とほぼ同じ曲率
半径を有する第１の円弧状曲線と、該第１の円弧
状曲線および該前縁に接しかつ該第１の円弧状曲
線の曲率半径より大なる曲率半径を有する第２の
円弧状曲線によつて形成して構成されている。 The present invention creates a desired radius of curvature from a band-shaped packaging film at the four corners of a rectangle defined by two side edges substantially parallel to the feeding direction of the packaging film and a front edge and a rear edge substantially perpendicular to the feeding direction. A packaging sheet is punched out in a punched shape that is rounded according to the curve of the packaging sheet.In the punched shape of the packaging sheet, the roundness at the corners of both ends of the trailing edge is rounded by a single arc-shaped curve that touches the trailing edge and the side edges. a first circular arc-shaped curve formed with roundness at the corners of both ends of the leading edge and having substantially the same radius of curvature as the circular arc-shaped curve that is in contact with the side edge and in contact with the rear edge and the side edges; It is formed by a first arcuate curve and a second arcuate curve that is in contact with the leading edge and has a radius of curvature larger than the radius of curvature of the first arcuate curve.
上記構成において、包装フイルムの送りに送り
むらが生じ、送りピツチが打ち抜かれるべき包装
シートの長さよりも小さくなつて連続する前後二
つの打抜き形状が部分的に重なり合つた場合でも
大なる曲率半径の円弧状曲線の部分で切断される
ので、包装シートをほぼ対称形状にでき見ばえを
良くできる。 In the above configuration, uneven feeding of the packaging film occurs, and even if the feeding pitch becomes smaller than the length of the packaging sheet to be punched and the two consecutive punched shapes partially overlap, the radius of curvature becomes large. Since it is cut at the arcuate curved portion, the packaging sheet can be made into a substantially symmetrical shape and its appearance can be improved.
以下、図面を参照して本考案の実施例について
説明する。 Embodiments of the present invention will be described below with reference to the drawings.
送り方向の包装材を有効に利用するためには、
当然、包装材の１ピツチの送り量が送り方向のシ
ート寸法と同等になるように設計をする事になる
が、実際には機械的に送り量の誤差があり零でな
い事及び形成されたシートの容器ピツチが形成工
程で包装材に与える熱により収縮変化を有し極微
ではあるが目標値から外れる事が有り、送り方向
に隣接するシート間隔がくいこむ場合と間隔が微
小に開き極小のスクラツプが発生する場合が起り
得る。 In order to effectively utilize the packaging material in the feed direction,
Naturally, the design is made so that the feed amount of one pitch of the packaging material is equal to the sheet size in the feeding direction, but in reality, there is a mechanical error in the feed amount and it is not zero, and the formed sheet The container pitch shrinks due to the heat applied to the packaging material during the forming process, and it may deviate from the target value, although it is very small, and there are cases where the gap between adjacent sheets in the feeding direction is squeezed, and cases where the gap is slightly widened, resulting in very small scraps. There may be cases where this occurs.
この内極小のスクラツプが発生する場合は仕上
りシートの形状に影響を与えないが隣接したシー
ト同志が互いにくいこんだ場合は隅の丸味（以下
アールと呼ぶ）がシート端面直線部と接線として
継がらなくなり、良い仕上がりのシートを提供で
きない。 If a very small scrap occurs, it will not affect the shape of the finished sheet, but if adjacent sheets are dug into each other, the roundness of the corner (hereinafter referred to as radius) will be connected as a tangent to the straight edge of the sheet. As a result, we are unable to provide sheets with a good finish.
本考案ではあらかじめ機械的誤差と包装材の熱
収縮誤差とを見込んで誤差ｍを設定し、隅のアー
ルを異なる２種の曲率半径（R1，R2）で画いた曲
線の一部で合成した曲線を選ぶことにより、四隅
とも近似的なR2を得るものである。 In this invention, the error m is set in advance by taking into account the mechanical error and the thermal shrinkage error of the packaging material, and the corner radius is synthesized using a part of a curve drawn with two different radii of curvature (R 1 , R 2 ). By selecting the curves shown in the figure, approximate R 2 can be obtained for all four corners.
すなわち第３図ないし第５図において１０は帯
状の包装材から打ち抜かれる包装シートであり、
その打抜き形状は輪郭線１１で示されている。こ
の包装シートの四隅のうちの包装シートの進行方
向Ｙの後続側の二つの隅のアールは曲率半径R2
で隣接する側縁１２と後縁１３に接する円弧にな
つている。一方前進側の二つの隅のアールは側縁
１１に接しかつ曲率中心の位置が前縁１４から
R2＋ｍの距離となる曲率半径R2で画いた円弧と
その円弧及び前縁とに接する曲率半径R1で画い
た円弧の二つの円弧によつて形成されている。 That is, in FIGS. 3 to 5, 10 is a packaging sheet punched out from a band-shaped packaging material,
Its punched shape is indicated by outline 11. Of the four corners of this packaging sheet, the radius of curvature of the two following corners in the direction of travel Y of the packaging sheet is R 2
It forms a circular arc that touches the adjacent side edge 12 and rear edge 13. On the other hand, the radius of the two corners on the forward side is in contact with the side edge 11, and the position of the center of curvature is from the front edge 14.
It is formed by two arcs: a circular arc drawn with a radius of curvature R 2 that is a distance of R 2 +m, and an arc drawn with a radius of curvature R 1 that is in contact with that arc and the leading edge.
次に第６図において曲率半径R1，R2、側縁か
ら曲率半径R1の曲率中心までの距離Ｓ、誤差の
想定値ｍとの関係について説明する。 Next, with reference to FIG. 6, the relationship between the radii of curvature R 1 and R 2 , the distance S from the side edge to the center of curvature of the radius of curvature R 1 , and the expected error value m will be explained.
Ｏは曲率半径R1の曲率中心でＰは曲率半径R2
の曲率中心である。 O is the center of curvature with radius of curvature R 1 and P is the radius of curvature R 2
is the center of curvature of
弧ANは曲率半径R1で画いた円弧であり、Ａ点
で半径R2の弧と接する。 The arc AN is a circular arc drawn with a radius of curvature R 1 and touches an arc with a radius R 2 at point A.
Ｎは前のシーの後縁と後のシートの前縁との接
線。 N is the tangent between the trailing edge of the front sheet and the leading edge of the rear sheet.
ここで弧QAと弧ANは接することから点Ａ，
Ｐ，Ｏは同線上になることになる。したがつて
〔AO〕＝R1また〔UP〕＝〔〕である。 Here, arc QA and arc AN touch, so point A,
P and O will be on the same line. Therefore, [AO] = R 1 and [UP] = [].
ゆえに
R1−R2＝〔PO〕＝ａ、
〔PT〕＝Ｓ−R2＝ｂ、
R1−R2−ｍ＝〔OT〕＝ｃ、
a2＝b2＋c2
すなわち、
（R1−R2）2＝（Ｓ−R2）2＋R1−R2−ｍ）２
これを整理すると、
（R1−R2）2＝（Ｓ−R2）2＋R1−R2）2
−2m（R1−R2）＋m22m（R1−R2）
＝（Ｓ−R2）2＋m2R1＝（Ｓ−Ｒ２）２＋ｍ２／２ｍ
＋R2……(1)
なお、ｍはシート送りのばらつきであり比較的
小さく想定される（0.5ミリメートル程度）の
で、接点ＡはＮに近づけられ、円弧ANは目だた
ない。Therefore, R 1 - R 2 = [PO] = a, [PT] = S - R 2 = b, R 1 - R 2 - m = [OT] = c, a 2 = b 2 + c 2 , that is, (R 1 -R 2 ) 2 = (S-R 2 ) 2 +R 1 -R 2 -m ) 2If we rearrange this, (R 1 -R 2 ) 2 = (S-R 2 ) 2 +R 1 -R 2 ) 2 -2m( R1 - R2 )+m22m( R1 - R2 ) =(S- R2 ) 2 + m2R1 = ( S- R2 ) 2 + m2 /2m
+R 2 ...(1) Note that m is the variation in sheet feeding and is assumed to be relatively small (about 0.5 mm), so the contact point A is brought close to N and the arc AN is not noticeable.
したがつてシート送り量がＯ〜ｍの範囲内でば
らつきを生じても後のシール形状は前のシートに
極めて近似したものとなる。 Therefore, even if the sheet feed amount varies within the range of 0 to m, the subsequent seal shape will be very similar to the previous sheet.
またＳの設定値は実施例で説明すると、シート
寸法の長さＬ＝37mm、幅Ｗ＝94mm、R2＝５mmに
おいてはＳは9.4mmが良く、一般にＷ：Ｓ＝10：
１がバランスが良いデザインになる。 Further, the setting value of S is explained in an example. When the sheet dimensions are length L = 37 mm, width W = 94 mm, and R 2 = 5 mm, S is preferably 9.4 mm, and generally W:S = 10:
1 results in a well-balanced design.
前記(1)式よりR1を求めると
R1＝（９．４−５）２＋０．５２／２×０．５＋５＝
24.61
但しｍ≒0.5
すなわちR1＝24.6mmとなる。 Calculating R 1 from equation (1) above, R 1 = (9.4-5) 2 +0.5 2 /2 x 0.5 + 5 =
24.61 However, m≒0.5, that is, R 1 =24.6mm.
以上の説明から明らかなように本考案によれば
包装シートを対角形状にできるとともに包装シー
トの有効利用も可能となる。 As is clear from the above description, according to the present invention, the packaging sheet can be formed into a diagonal shape, and the packaging sheet can also be used effectively.
第１図は従来の包装シートの打抜き形状で打ち
抜いた後の包装フイルムを示す図、第２図Ａは包
装フイルムの送りむらによる打抜き形状の重り合
を示す図、第２図Ｂは従来の包装シートの打抜き
形状であつて隣接する包装シートの打抜き形状と
干渉した状態を示す図、第２図Ｃは従来の他の包
装シートの打抜き形状を示す図、第３図は本考案
による包装シートの打抜き形状に従つて打ち抜か
れた残りの包装材を示す図、第４図は第３図のＡ
部分の拡大図、第５図は第３図のＢ部分の拡大
図、第６図はR1，R2，Ｓ，ｍの間の関係を示す
図である。
R1，R2：曲率曲線、ｍ：誤差。
Figure 1 is a diagram showing a packaging film after being punched out using the punching shape of a conventional packaging sheet, Figure 2A is a diagram showing overlapping of the punched shapes due to uneven feeding of the packaging film, and Figure 2B is a diagram of a conventional packaging film. A diagram showing a punched shape of a sheet that interferes with a punched shape of an adjacent packaging sheet, FIG. 2C is a diagram showing a punched shape of another conventional packaging sheet, and FIG. 3 is a diagram showing a punched shape of a packaging sheet according to the present invention. A diagram showing the remaining packaging material punched out according to the punching shape, Figure 4 is A of Figure 3.
FIG. 5 is an enlarged view of portion B in FIG. 3, and FIG. 6 is a diagram showing the relationship between R 1 , R 2 , S, and m. R 1 , R 2 : curvature curve, m: error.
Claims (1)
送り方向にほぼ平行な二つの側縁と該送り方向
にほぼ直角の前縁および後縁とで限定される四
角形の四隅に所望の曲率半径の曲線にしたがつ
て丸味を付けた打抜き形状で包装シートを打ち
抜く包装シートの打抜き形状において、該後縁
の両端の隅部における丸味を該後縁および側縁
に接する単一の円弧状曲線で形成し、該前縁の
両端の隅部における丸味を、該側縁に接しかつ
該後縁および側縁に接する該円弧状曲線とほぼ
同じ曲率半径を有する第１の円弧状曲線と、該
第１の円弧状曲線および該前縁に接しかつ該第
１の円弧状曲線の曲率半径より大なる曲率半径
を有する第２の円弧状曲線によつて形成したこ
とを特徴とする包装シートの打抜き形状。 ２ 該第１の円弧状曲線の曲率半径R2と該第２
の円弧状曲線の曲率半径R1との関係を、該側
縁から曲率半径R1の曲率中心までの距離を
Ｓ、シートの送りのばらつきをｍとしたとき、 R1＝（Ｓ−Ｒ２）２＋ｍ２／２ｍ＋R2 としたことを特徴とする実用新案登録請求の範囲
第１項に記載の包装シートの打抜形状。[Claims for Utility Model Registration] 1. Four corners of a rectangle defined by two side edges substantially parallel to the feeding direction of the packaging film and a front edge and a rear edge substantially perpendicular to the feeding direction from a band-shaped packaging film. In the punching shape of the packaging sheet, the packaging sheet is punched out in a punched shape that is rounded according to a curve with a desired radius of curvature. A first arcuate shape having a radius of curvature that is approximately the same as the arcuate curve that is in contact with the side edge and that is in contact with the rear edge and the side edges, and the roundness at the corners of both ends of the leading edge is in contact with the side edge. and a second arcuate curve that is in contact with the first arcuate curve and the leading edge and has a radius of curvature larger than the radius of curvature of the first arcuate curve. Punching shape of packaging sheet. 2 The radius of curvature R 2 of the first circular arc curve and the second
The relationship with the radius of curvature R 1 of the circular arc-shaped curve is as follows, where S is the distance from the side edge to the center of curvature of the radius of curvature R 1 , and m is the variation in sheet feed, R 1 = (S - R 2 ) 2 + m 2 /2 m + R 2 The punched shape of the packaging sheet according to claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981084526U JPS625920Y2 (en) | 1981-06-09 | 1981-06-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981084526U JPS625920Y2 (en) | 1981-06-09 | 1981-06-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57196609U JPS57196609U (en) | 1982-12-13 |
| JPS625920Y2 true JPS625920Y2 (en) | 1987-02-10 |
Family
ID=29879873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981084526U Expired JPS625920Y2 (en) | 1981-06-09 | 1981-06-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS625920Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0613340B2 (en) * | 1984-03-05 | 1994-02-23 | マルホ自動機株式会社 | Continuous punching method for unit packages |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57163100A (en) * | 1981-03-06 | 1982-10-07 | Bosch Gmbh Robert | Method of punching packing strip without forming chip and punching tool and packing strip manufactured by said tool |
-
1981
- 1981-06-09 JP JP1981084526U patent/JPS625920Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57163100A (en) * | 1981-03-06 | 1982-10-07 | Bosch Gmbh Robert | Method of punching packing strip without forming chip and punching tool and packing strip manufactured by said tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57196609U (en) | 1982-12-13 |
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