JP2002301780A - Sheet bag making machine - Google Patents
Sheet bag making machineInfo
- Publication number
- JP2002301780A JP2002301780A JP2001106773A JP2001106773A JP2002301780A JP 2002301780 A JP2002301780 A JP 2002301780A JP 2001106773 A JP2001106773 A JP 2001106773A JP 2001106773 A JP2001106773 A JP 2001106773A JP 2002301780 A JP2002301780 A JP 2002301780A
- Authority
- JP
- Japan
- Prior art keywords
- base paper
- sheet
- paper
- contact
- adhesive
- 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.)
- Granted
Links
Landscapes
- Making Paper Articles (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、買い物袋などとし
て用いられる紙袋を製造する装置に係わり、特に接着剤
による紙袋の胴体貼り合わせ部分が剥離せぬよう強力に
接着させ得るようにした枚葉製袋機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a paper bag used as a shopping bag or the like, and more particularly, to a single sheet capable of strongly adhering a body of a paper bag with an adhesive so as not to peel off. It relates to a bag making machine.
【0002】[0002]
【従来の技術】一般に、買い物袋などとして利用される
紙袋として、図10に示すようなものが広く利用されて
いる。ここで、Aは四角い筒状の胴体、Bは物品を出し
入れするための開口部、Cはその開口部に対向する方形
状の底面であり、胴体Aを成す両側面A1は非使用時に
あって偏平状に折り畳めるようガセット折りにされる。2. Description of the Related Art Generally, a paper bag as shown in FIG. 10 is widely used as a shopping bag or the like. Here, A is a square cylindrical body, B is opening for loading and unloading the article, C is the bottom surface of the rectangular shape opposing the opening, both side surfaces A 1 forming the body A is a when not in use The gusset is folded so that it can be folded flat.
【0003】尚、その種の紙袋は手作りされる場合もあ
るが、その多くは枚葉製袋機と呼ばれる装置により連続
して作られる。枚葉製袋機とは概して多層状に積み重ね
られた原紙を一枚ずつ繰り出す給紙部と、この給紙部よ
り繰り出された原紙を所定方向に走行させつつ両側がガ
セット折りされた偏平な筒状体にする胴体形成部と、こ
の胴体形成部で得た筒状体の一端開口部を方形状の底面
として閉鎖する角底形成部とを具備して構成される。特
に、胴体形成部には原紙の両端縁を接着させるための糊
付部が設けられ、原紙にガセット折りを施す前にその糊
付部で原紙の一端縁に予め糊(接着剤)が付けられるよ
うになっている。そして、上記のような枚葉製袋機によ
れば、胴体形成部により図11のような筒状体Sを形成
した後、その一端開口部を角底形成部により折り込んで
図12のような底面Cを連続して形成することができ
る。[0003] Although such paper bags are sometimes handmade, many of them are made continuously by a device called a sheet-fed bag making machine. A sheet-feeding bag making machine is generally a sheet feeding unit that feeds out stencils stacked in a multilayer form one by one, and a flat tube whose both sides are gusset-folded while running the stencil fed out from the sheet feeding unit in a predetermined direction. It comprises a body forming part for forming a body, and a square bottom forming part for closing an opening at one end of the cylindrical body obtained by the body forming part as a rectangular bottom surface. In particular, a glued portion for bonding both edges of the base paper is provided in the body forming portion, and a glue (adhesive) is applied to one end edge of the base paper in advance at the glued portion before gusset folding the base paper. It has become. Then, according to the above-described sheet-fed bag making machine, after the cylindrical body S as shown in FIG. 11 is formed by the body forming section, one end opening thereof is folded by the square bottom forming section, as shown in FIG. The bottom surface C can be formed continuously.
【0004】[0004]
【発明が解決しようとする課題】然し乍ら、従来の枚葉
製袋機によれば、胴体形成部に糊付部としてノズルを装
置し、そのノズルから走行中の原紙の一端縁に接着剤を
筋状にして吐出するようにしていただけなので十分な接
着力が得られず、角底形成部で筒状体の一端に底面を形
成する際、図13に示すよう折曲部Lの位置で接着剤に
よる貼り合わせ部分が剥離してしまう事があった。特
に、原紙がポリプロピレンやポリオレフィンといった合
成高分子系の合成紙で成る場合、接着剤として合成紙に
馴染む合成樹脂系のものを用いるが、その種の接着剤を
ノズルから筋状に吐出させるだけであると、原紙の両端
縁を接し合わせるまで溶剤の多くが揮発せずに残って即
時接着が不能な状態となり、仕上がった紙袋の大部分に
上記折曲部Lの位置で接着不良に起因する孔hができて
しまうという問題があった。However, according to the conventional sheet-fed bag making machine, a nozzle is provided as a gluing section in the body forming section, and an adhesive is applied to one end edge of the running base paper from the nozzle. When the bottom is formed at one end of the cylindrical body at the square bottom forming portion, the adhesive is not provided at the bent portion L as shown in FIG. In some cases, the bonded part was peeled off. In particular, when the base paper is made of synthetic polymer synthetic paper such as polypropylene or polyolefin, a synthetic resin-based adhesive that is compatible with synthetic paper is used as the adhesive. If there is, much of the solvent remains without volatilization until both edges of the base paper are brought into contact with each other, so that immediate bonding is impossible. In most cases, a hole caused by poor bonding at the position of the bent portion L in most of the finished paper bag. h.
【0005】本発明は以上のような事情に鑑みて成され
たものであり、その目的は原紙に合成紙を用いた場合で
も接着剤による貼り合わせ部分が容易に剥離せぬ良質な
紙袋を得られるようにすることにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a high-quality paper bag in which a portion bonded by an adhesive cannot be easily peeled off even when synthetic paper is used as a base paper. Is to be able to
【0006】[0006]
【課題を解決するための手段】本発明は上記目的を達成
するため、原紙を一枚ずつ繰り出す給紙部と、この給紙
部より繰り出された原紙を偏平な筒状体にする胴体形成
部とを備えた枚葉製袋機において、前記胴体形成部は原
紙の両端縁を接着させるための糊付部を有すると共に、
その糊付部が原紙の一端縁上にあって該紙面上に接着剤
を吐出するノズルと、このノズルから吐出された接着剤
を原紙の一端縁に沿って帯状に延ばす接触子とを備えて
成ることを特徴とする枚葉製袋機を提供する。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a paper feeding section for feeding base paper one by one, and a body forming section for forming a flat cylindrical body from the base paper fed from the paper feeding section. In the sheet-fed bag making machine, the body forming portion has a glued portion for bonding both end edges of the base paper,
A nozzle that has the glued portion on one edge of the base paper and discharges the adhesive onto the paper surface; and a contact that extends the adhesive discharged from the nozzle in a band along the one edge of the base paper. Provided is a single-wafer bag making machine characterized by the following.
【0007】特に、本発明はより好適な態様として、原
紙を一枚ずつ繰り出す給紙部と、この給紙部より繰り出
された原紙を走行させつつ両側がガセット折りされた偏
平な筒状体にする胴体形成部と、この胴体形成部で得た
前記筒状体の一端開口部に方形状の底面を形成する角底
形成部とを備えた枚葉製袋機において、前記胴体形成部
は原紙の両端縁を接着させるための糊付部を有し、その
糊付部は原紙の一端縁上にあって該紙面上に接着剤を吐
出するノズルと、このノズルから吐出された接着剤を原
紙の一端縁に沿って帯状に延ばすための昇降可能な接触
子とを備えると共に、前記糊付部には原紙が前記接触子
の下方を通過するときに該接触子を原紙の一端縁に向け
て降下させる操作手段が設けられて成ることを特徴とす
る枚葉製袋機を提供するものである。[0007] In particular, as a more preferable aspect, the present invention provides a sheet feeding section for feeding the base paper one by one, and a flat tubular body whose both sides are gusset-folded while running the base paper fed from the sheet feeding section. A sheet forming machine comprising: a body forming section to be formed; and a square bottom forming section that forms a square bottom surface at one end opening of the cylindrical body obtained by the body forming section. A gluing portion for bonding both edges of the base paper, the gluing portion is located on one edge of the base paper, and a nozzle for discharging the adhesive onto the paper surface, and the adhesive discharged from the nozzle is used for the base paper. And a vertically movable contact for extending in a strip shape along one edge of the base paper, and the glued portion is arranged such that when the base paper passes below the contact, the contact is directed toward one end of the base paper. A sheet-fed bag making machine characterized by being provided with operating means for lowering. It is intended to.
【0008】尚、操作手段は、原紙を走行させるための
駆動部より動力を得て所定の速度で回転するカムローラ
を原動節として、接触子を上下に揺動させるべく軸心回
りの回転角運動を行う従動軸と、この従動軸に回転角運
動を与えるべく該従動軸より前記カムローラの外周カム
輪郭面に向けて延びる揺動リンクとを有し、前記従動軸
には接触子を固定するための取付部が設けられる。The operating means uses a cam roller, which rotates at a predetermined speed by receiving power from a driving unit for running the base paper, as a motor node, and rotates the rotary shaft about its axis so as to swing the contact up and down. And a swing link extending from the driven shaft toward the outer peripheral cam contour surface of the cam roller so as to impart a rotational angular motion to the driven shaft, and to fix a contact to the driven shaft. Is provided.
【0009】[0009]
【発明の実施の形態】以下、本発明の適用例を図面に基
づいて詳細に説明する。先ず、図1は枚葉製袋機の全体
像を示した側面概略図であり、図2には同平面概略図を
示す。これらの図において、1は原紙Pを一枚ずつ繰り
出す給紙部、2は給紙部より繰り出された原紙にその走
行方向に沿って折筋を付ける筋付部、3は筋付部を通過
した原紙を所定方向に走行させつつ両側がガセット折り
された偏平な筒状体にする胴体形成部、4は胴体形成部
で得た筒状体の一端開口部を方形状の底面と成す角底形
成部であり、それら各部1〜4は直列状に連なって一枚
の原紙Pを最終的に図10のような紙袋にすることがで
きる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, FIG. 1 is a schematic side view showing an overall image of a sheet-fed bag making machine, and FIG. 2 is a schematic plan view thereof. In these figures, 1 is a paper feeding section for feeding out the base paper P one sheet at a time, 2 is a crease section for forming a crease along the running direction on the base paper fed from the paper feeding section, and 3 is a section passing through the crease section. A body forming section that forms a flat cylindrical body whose both sides are gusset-folded while running the base paper in a predetermined direction, and 4 is a square base that forms an opening at one end of the cylindrical body obtained by the body forming section with a rectangular bottom surface. The parts 1 to 4 are formed in series, and one base paper P can be finally formed into a paper bag as shown in FIG.
【0010】このうち、胴体形成部3はガセット折りす
るための一次折込部3Bと二次折込部3Cとを備えるほ
か、一次折込部3Bの前段上流側には原紙の両端縁を接
着させるべくその一端縁に予め糊付けをする糊付部3A
が設けられる。The body forming section 3 includes a primary folding section 3B and a secondary folding section 3C for gusset folding, and the upstream side of the primary folding section 3B is provided with both ends of a base paper for bonding. Glue part 3A that glues one end edge in advance
Is provided.
【0011】図3は、糊付部3Aを示した斜視概略図で
ある。この図で明らかなように、糊付部3Aは原紙Pの
一端縁e上にあって該紙面上に糊(接着剤f)を吐出す
るノズル5を備える。このノズル5には接着剤を溜める
シリンダヘッド6が接続され、そのシリンダヘッド6に
は接着剤を供給するための管7が接続される。又、シリ
ンダヘッド6には給気弁8が取り付けられ、その給気弁
8には2つのエアホース9,10が接続される。11は
原紙の一端縁e上にノズル5を配置するための保持具で
あり、この保持具11にはシリンダヘッド6がボルト止
めされる。そして、そのシリンダヘッド6に接続するノ
ズル5によれば、先端を原紙の一端縁eに臨めた状態で
その下方を通過する原紙Pの一端縁紙面上に接着剤fを
筋状に吐出する。尚、ノズル5による接着剤の吐出は、
エアホース9,10から給気弁8内に流入する作動流体
(圧縮空気)の圧力により成されるが、その作動時間の
設定により接着剤の吐出時間を原紙の長さや走行速度
(送り速度)に合わせて容易に変更することができる。FIG. 3 is a schematic perspective view showing the glued portion 3A. As is clear from this figure, the gluing section 3A has a nozzle 5 which is on one end edge e of the base paper P and discharges the glue (adhesive f) onto the paper surface. The nozzle 5 is connected to a cylinder head 6 for storing the adhesive, and the cylinder head 6 is connected to a pipe 7 for supplying the adhesive. An air supply valve 8 is attached to the cylinder head 6, and two air hoses 9 and 10 are connected to the air supply valve 8. Reference numeral 11 denotes a holder for arranging the nozzle 5 on one edge e of the base paper. The cylinder head 6 is bolted to the holder 11. Then, according to the nozzle 5 connected to the cylinder head 6, the adhesive f is discharged in a streak form onto the one end edge paper surface of the base paper P passing below with the front end facing the one end edge e of the base paper. The ejection of the adhesive by the nozzle 5 is performed as follows.
It is formed by the pressure of the working fluid (compressed air) flowing into the air supply valve 8 from the air hoses 9 and 10. By setting the operation time, the discharge time of the adhesive is set to the length of the base paper and the traveling speed (feed speed). It can be easily changed to suit.
【0012】一方、糊付部3Aは以上のようなノズル5
のみならず、そのノズル5から吐出された接着剤fを原
紙の一端縁eに沿って帯状に延ばす接触子12と、その
下方を原紙が通過するときに該接触子12を原紙の一端
縁eに向けて降下させる操作手段13とを備える。本例
において、接触子12は金属板などで成る篦状の部材と
され、ノズル5より後方(原紙の進行方向下流側)にあ
ってノズル5と同一直線上で原紙の一端縁eが通る経路
上に昇降可能にして設けられる。14は接触子を昇降さ
せる操作手段として該接触子を保持する従動軸であり、
その従動軸14は原紙の進行方向に対し直交する方向に
向けて一端が装置フレームに設けた図示せぬブラケット
の軸受にて回転可能に支持される。そして、この従動軸
14は後述する原動節より動力を得て軸心回りの回転角
運動を行い、同軸14上に取り付けた接触子12を上下
に揺動させることになる。尚、従動軸14には接触子1
2を固定するための取付部15が設けられ、その取付部
15に接触子12の一端がボルト止めされるようになっ
ている。又、16は原動節の動力を従動軸14に伝える
べく該従動軸の一端部に設けた揺動リンクであり、この
揺動リンク16は一端が従動軸14に固定されると共
に、その先端には原動節の部位に接触するガイドローラ
17が設けられる。On the other hand, the gluing section 3A is provided with the nozzle 5 as described above.
In addition, a contact 12 for extending the adhesive f discharged from the nozzle 5 in a band along one edge e of the base paper, and the contact 12 when the base paper passes below the one end e of the base paper And operation means 13 for descending toward. In the present embodiment, the contact 12 is a moat-shaped member made of a metal plate or the like, and is located behind the nozzle 5 (downstream in the direction of travel of the base paper) and on the same straight line as the nozzle 5 through which one edge e of the base paper passes It is provided so as to be able to move up and down. Reference numeral 14 denotes a driven shaft that holds the contact as operating means for raising and lowering the contact,
One end of the driven shaft 14 is rotatably supported by a bearing of a bracket (not shown) provided on the apparatus frame in a direction orthogonal to the traveling direction of the base paper. Then, the driven shaft 14 obtains power from a driving joint, which will be described later, performs a rotational angular movement about the axis, and swings the contact 12 mounted on the coaxial 14 up and down. The driven shaft 14 has the contact 1
A mounting portion 15 for fixing the second contact 2 is provided, and one end of the contact 12 is bolted to the mounting portion 15. Reference numeral 16 denotes a swing link provided at one end of the driven shaft for transmitting the power of the motor to the driven shaft 14, and the swing link 16 has one end fixed to the driven shaft 14 and Is provided with a guide roller 17 which comes into contact with a portion of a motor joint.
【0013】図4において、18は従動軸14に回転角
運動を与えるための原動節を成すカムローラであり、そ
の外周は円周部19と凹部20とをもつカム輪郭面とさ
れ、このカム輪郭面に揺動リンク16の先端ガイドロー
ラ17が接触するようになっている。本例において、カ
ムローラ18は一対の平面カム18A,18Bを重合し
て構成され、その一方には円周部19に沿って所定の間
隔でネジ孔21が形成されると共に、他方にはネジ孔2
1に対応して円弧状の長孔22が形成される。In FIG. 4, reference numeral 18 denotes a cam roller serving as a driving joint for imparting a rotational angular motion to the driven shaft 14. The outer periphery of the cam roller 18 is a cam contour surface having a circumferential portion 19 and a concave portion 20. The end guide roller 17 of the swing link 16 comes into contact with the surface. In this embodiment, the cam roller 18 is formed by stacking a pair of flat cams 18A and 18B, one of which has screw holes 21 formed at a predetermined interval along the circumferential portion 19, and the other has screw holes 21. 2
An arc-shaped long hole 22 is formed corresponding to 1.
【0014】そして、このカムローラ18によれば、長
孔22からネジ孔21にボルトをねじ込んで一対の平面
カム18A,18Bを一体に締結することができ、特に
ネジ孔21の位置を変えることにより円周部19と凹部
20との占有率を調整できるようになっている。又、カ
ムローラ18は、原紙を所定方向に向けて走行させるた
めの駆動部より動力を得て所定の速度で回転するように
なっている。23はカムローラ18を定速回転させるた
めの伝動系であり、この伝動系23は例えばカムローラ
18と同軸上に設けられるスプロケット24ほか、装置
フレームに設けられる他のスプロケット24,25,2
6、並びにそれら各スプロケットを繋ぐチェーン28,
29などから構成される。According to the cam roller 18, a pair of flat cams 18A and 18B can be integrally fastened by screwing a bolt from the long hole 22 into the screw hole 21, and particularly by changing the position of the screw hole 21. The occupation ratio between the circumferential portion 19 and the concave portion 20 can be adjusted. The cam roller 18 rotates at a predetermined speed by receiving power from a driving unit for moving the base paper in a predetermined direction. Reference numeral 23 denotes a transmission system for rotating the cam roller 18 at a constant speed. The transmission system 23 includes, for example, a sprocket 24 provided coaxially with the cam roller 18 and other sprockets 24, 25, 2 provided on the apparatus frame.
6, and a chain 28 connecting each of the sprockets,
29 and the like.
【0015】一方、上記の駆動部は、図5に示すように
原紙を走行させるべく、その走行案内面30の上下に設
けられる多数の送りローラ31ほか、その各送りローラ
を一斉に回転駆動させるための駆動源を成すモータ32
などから構成される。そして、本例によれば、送りロー
ラ31を支持する車軸の一つに取り付けたスプロケット
33と、伝動系23のスプロケット27とがチェーン3
4を介して連係され、これによりカムローラ18が給紙
タイミングに同調して所定の速度で回転しつつ、その外
周カム輪郭面に接触する揺動リンク16を介して従動軸
14をその軸心回りに回転角運動させることになる。On the other hand, as shown in FIG. 5, the above-mentioned drive unit simultaneously drives a plurality of feed rollers 31 provided above and below a travel guide surface 30 and the respective feed rollers in order to run the base paper. 32 as a drive source for the
Etc. According to this example, the sprocket 33 attached to one of the axles supporting the feed roller 31 and the sprocket 27 of the transmission system 23 are connected to the chain 3.
4, the cam roller 18 rotates at a predetermined speed in synchronism with the sheet feeding timing, and rotates the driven shaft 14 about its axis through a swing link 16 which comes into contact with the outer peripheral cam contour surface. The rotational angular motion is caused.
【0016】この結果、接触子12が図6に示すよう従
動軸14を中心として上下に揺動し、その下方への揺動
により該接触子の先端が原紙Pの一端縁に接触しつつ接
着剤を帯状に延ばすことになるが、その降下時間はカム
ローラ18の円周部19の範囲を調整することにより設
定することができる。このため、長さが異なる原紙を用
いる場合でも、その一端縁全長に亙って接触子12を接
触させ続けることができる。尚、図5で明らかなよう
に、ノズル5は管7を介して接着剤を蓄えるタンク35
に接続され、エアホース9,10の一端はエアコンプレ
ッサ36に接続される。As a result, the contact 12 swings up and down around the driven shaft 14 as shown in FIG. 6, and the tip of the contact comes into contact with one edge of the base paper P by swinging downward. The agent is spread in a belt shape, and the descent time can be set by adjusting the range of the circumferential portion 19 of the cam roller 18. Therefore, even when base papers having different lengths are used, the contact 12 can be kept in contact over the entire length of one end edge. As is apparent from FIG. 5, the nozzle 5 is connected to the tank 35 for storing the adhesive through the pipe 7.
And one ends of the air hoses 9 and 10 are connected to an air compressor 36.
【0017】ここで、以上のような枚葉製袋機の作用を
説明すれば、原紙P(本例においてポリプロピレンなど
を主成分とする合成紙)は給紙部1より一枚ずつ繰り出
され、その給紙方向に沿って該原紙に筋付部2で図7に
示すように数条の折筋L1〜L6が付与される。折筋L
1〜L6が付けられた原紙Pは送りローラ31によりそ
のまま胴体形成部3に送られ、先ずその一端縁eにノズ
ル5より吐出する合成樹脂系接着剤f(本例においてト
ルエンを溶剤とするノルマルヘキサン)が筋状に付けら
れる。次いで、原紙Pの進行端が接触子12の下方に差
しかかると、カムローラ18、揺動リンク16、並びに
従動軸14から成る操作手段13の作用により接触子1
2が原紙の一端縁eに向けて降下し、その先端が原紙の
一端縁eに接触する。原紙Pはそのまま走行するので、
原紙Pの一端縁eに付けられた筋状の接着剤fは接触子
12により帯状に延ばされる。そして、原紙Pの末端が
接触子12の下方を通過する直前に接触子12が操作手
段13により上昇されて原紙Pより離隔される。このた
め、接着剤fが紙面上からはみ出して原紙の走行を阻害
することがない。Here, the operation of the above-described sheet-fed bag making machine will be described. The base paper P (synthetic paper mainly composed of polypropylene or the like in this example) is fed out one by one from the paper feed unit 1. along its sheet feed direction Sujizuke portion 2 to the base paper is folded muscle L 1 ~L 6 having Article 7 is applied. Origami L
As it is sent to the body forming portion 3, first with toluene as solvent in the synthesis resin adhesive f (this example which ejects from the nozzle 5 at one end edge e by sheet P is feed roller 31 1 ~L 6 is attached Normal hexane) is streaked. Next, when the advancing end of the base paper P reaches below the contact 12, the operation of the operating means 13 including the cam roller 18, the swing link 16, and the driven shaft 14 causes the contact 1.
2 descends toward one edge e of the base paper, and the leading end thereof contacts one edge e of the base paper. Since the base paper P runs as it is,
The streak-like adhesive f applied to one end edge e of the base paper P is extended in a strip shape by the contact 12. Then, immediately before the end of the base paper P passes below the contact 12, the contact 12 is raised by the operating means 13 and is separated from the base paper P. For this reason, the adhesive f does not protrude from the paper surface and does not hinder the traveling of the base paper.
【0018】次に、原紙Pが一次折込部3Bに到達する
と、この一次折込部にて折筋L1〜L4が図8のように
折られ、次いで二次折込部3Cで図9に示すよう折筋L
5,L6が折り込まれる。そして、このとき接着剤fが
塗布された一端縁eと他の一端縁e′とが相対向して貼
り合わされることになるが、接着剤fが予め帯状に薄く
延ばされて高粘性状態にあることから、原紙の両端縁
e,e′は瞬時にして強力に接着する。このため、得ら
れた筒状体の一端開口部に角底形成部4にて底面(角
底)を形成する際、上記の貼り合わせ部分が剥離せず、
以て良質な紙袋を得ることができる。Next, when the sheet P reaches the primary folded portion 3B, Orisuji L 1 ~L 4 at the primary folded unit is folded as shown in FIG. 8, then 9 the secondary folded portions 3C Yo Fold Line L
5, L 6 is folded. At this time, the one end edge e to which the adhesive f is applied and the other end edge e 'are bonded to face each other. , The both edges e and e 'of the base paper are instantly and strongly adhered. For this reason, when the bottom surface (square bottom) is formed at the one end opening of the obtained cylindrical body by the square bottom forming portion 4, the above-mentioned bonded portion does not peel off,
Thus, a good quality paper bag can be obtained.
【0019】以上、本発明の適用例を説明したが、本発
明に係る枚葉製袋機は上記のような構成に限らず、例え
ば接触子12として篦状部材ほか、ブラシやローラ状の
部材などを用いることができる。又、接触子12を原紙
の通過タイミングに合わせて昇降させる操作手段とし
て、上記のようなカム機構を用いるほか、電磁ソレノイ
ドなどのアクチュエータを用い、その動作を原紙の有無
を検出可能なセンサで行うようにしても良い。Although the application example of the present invention has been described above, the sheet-fed bag making machine according to the present invention is not limited to the above-described configuration. Etc. can be used. Further, in addition to using the above-described cam mechanism as an operating means for moving the contact 12 up and down in accordance with the passage timing of the base paper, an actuator such as an electromagnetic solenoid is used, and the operation is performed by a sensor capable of detecting the presence or absence of the base paper. You may do it.
【0020】[0020]
【発明の効果】以上の説明で明らかなように、本発明に
よれば原紙の一端縁上に接着剤を吐出するノズルほか、
その接着剤を原紙の一端縁に沿って帯状に延ばす接触子
を備えていることから、接着剤の塗布面が広がって接着
性が向上する。特に、合成樹脂系の接着剤を用いる場合
には、溶剤の揮発が促されるので、合成紙で成る原紙で
もその両端を瞬時にして強力に接着することができる。
このため、その貼り合わせ部分が紙袋の底面を形成する
際などに剥離せず、孔開き不良のない良質な紙袋を得る
ことができる。As apparent from the above description, according to the present invention, in addition to the nozzle for discharging the adhesive on one edge of the base paper,
Since the contact is provided to extend the adhesive in a strip shape along one edge of the base paper, the adhesive application surface is widened and the adhesiveness is improved. In particular, when a synthetic resin-based adhesive is used, volatilization of the solvent is promoted, so that even a base paper made of synthetic paper can be strongly adhered instantaneously at both ends thereof.
For this reason, a good quality paper bag free from perforation defects can be obtained without the bonded portion peeling off when forming the bottom surface of the paper bag.
【0021】又、原紙が接触子の下方を通過するときに
該接触子を原紙の一端縁に向けて降下させる操作手段を
備えていることから、接着剤が原紙からはみ出して順次
送られる原紙の走行を阻害することがない。しかも、そ
の操作手段としてカムローラ、揺動リンク、並びに従動
軸で成るカム機構を用いていることから、簡易構造にし
て接触子に確動運動を行わせ得る。Further, since there is provided an operating means for lowering the contact toward one end edge of the base paper when the base paper passes below the contact, the adhesive is protruded from the base paper and is successively fed. Does not hinder driving. In addition, since a cam mechanism including a cam roller, a swing link, and a driven shaft is used as the operation means, the contact can be made to perform a positive movement with a simple structure.
【図1】枚葉製袋機の側面概略図FIG. 1 is a schematic side view of a sheet-fed bag making machine.
【図2】枚葉製袋機の平面概略図FIG. 2 is a schematic plan view of a sheet-feed bag making machine.
【図3】本発明に係る糊付部を示した斜視概略図FIG. 3 is a schematic perspective view showing a glued portion according to the present invention.
【図4】接触子を昇降させる操作手段を示した側面概略
図FIG. 4 is a schematic side view showing operating means for raising and lowering a contact.
【図5】糊付部を示した側面概略図FIG. 5 is a schematic side view showing a glued portion.
【図6】糊付部を示した部分拡大図FIG. 6 is a partially enlarged view showing a glued portion.
【図7】原紙に折筋を付けた状態を示す斜視図FIG. 7 is a perspective view showing a state in which a base paper is creased.
【図8】図7の原紙を折筋に沿って一部折り込んだ状態
を示す斜視図8 is a perspective view showing a state in which the base paper of FIG. 7 is partially folded along a folding line.
【図9】図8の原紙を折り進めて両端縁を貼り合わせた
状態を示す斜視図9 is a perspective view showing a state in which the base paper of FIG. 8 has been folded and both edges have been stuck together.
【図10】紙袋の斜視図FIG. 10 is a perspective view of a paper bag.
【図11】両側がガセット折りされた筒状体を示す斜視
図FIG. 11 is a perspective view showing a tubular body whose both sides are gusset-folded.
【図12】図11の筒状体に底面を形成した状態(紙袋
を折り畳んだ状態)を示す斜視図12 is a perspective view showing a state in which a bottom surface is formed on the cylindrical body in FIG. 11 (a state in which a paper bag is folded).
【図13】従来の枚葉製袋機で作られる紙袋の仕掛品を
示した斜視概略図FIG. 13 is a schematic perspective view showing a work in progress of a paper bag made by a conventional sheet-fed bag making machine.
1 給紙部 2 筋付部 3 胴体形成部 3A 糊付部 4 角底形成部 5 ノズル 12 接触子 13 操作手段 14 従動軸 15 取付部 16 揺動リンク 18 カムローラ DESCRIPTION OF SYMBOLS 1 Paper feed part 2 Striated part 3 Body formation part 3A Glue part 4 Square bottom formation part 5 Nozzle 12 Contact 13 Operating means 14 Follower shaft 15 Mounting part 16 Oscillating link 18 Cam roller
フロントページの続き Fターム(参考) 3E075 AA08 AA28 BA48 BB23 DA03 DA04 DA05 DA14 DA32 DB23 DC45 DC48 DD02 DD33 DD45 GA04 Continued on the front page F term (reference) 3E075 AA08 AA28 BA48 BB23 DA03 DA04 DA05 DA14 DA32 DB23 DC45 DC48 DD02 DD33 DD45 GA04
Claims (3)
給紙部より繰り出された原紙を偏平な筒状体にする胴体
形成部とを備えた枚葉製袋機において、前記胴体形成部
は原紙の両端縁を接着させるための糊付部を有すると共
に、その糊付部が原紙の一端縁上にあって該紙面上に接
着剤を吐出するノズルと、このノズルから吐出された接
着剤を原紙の一端縁に沿って帯状に延ばす接触子とを備
えて成ることを特徴とする枚葉製袋機。1. A sheet forming machine comprising: a sheet feeding section for feeding base papers one by one; and a body forming section for forming the base paper fed from the sheet feeding section into a flat cylindrical body. The portion has a glued portion for bonding both edges of the base paper, and the glued portion is on one edge of the base paper, and a nozzle for discharging the adhesive onto the paper surface, and a bonding portion discharged from the nozzle A contact for extending the agent in a band along one edge of the base paper.
給紙部より繰り出された原紙を走行させつつ両側がガセ
ット折りされた偏平な筒状体にする胴体形成部と、この
胴体形成部で得た前記筒状体の一端開口部に方形状の底
面を形成する角底形成部とを備えた枚葉製袋機におい
て、前記胴体形成部は原紙の両端縁を接着させるための
糊付部を有し、その糊付部は原紙の一端縁上にあって該
紙面上に接着剤を吐出するノズルと、このノズルから吐
出された接着剤を原紙の一端縁に沿って帯状に延ばすた
めの昇降可能な接触子とを備えると共に、前記糊付部に
は原紙が前記接触子の下方を通過するときに該接触子を
原紙の一端縁に向けて降下させる操作手段が設けられて
成ることを特徴とする枚葉製袋機。2. A paper feed unit for feeding base paper one sheet at a time, a body forming unit for forming a flat tubular body whose both sides are gusset-folded while running the base paper fed from the paper feed unit; And a square bottom forming part that forms a square bottom surface at one end opening of the cylindrical body obtained in the section, wherein the body forming part is a glue for bonding both edges of the base paper. A gluing portion having a gluing portion on one edge of the base paper for discharging the adhesive onto the paper surface, and extending the adhesive discharged from the nozzle in a band along the one edge of the base paper. And an operating means for lowering the contact toward one end of the base paper when the base paper passes below the contact. A sheet-fed bag making machine, characterized in that:
動部より動力を得て所定の速度で回転するカムローラを
原動節として、接触子を上下に揺動させるべく軸心回り
の回転角運動を行う従動軸と、この従動軸に回転角運動
を与えるべく該従動軸より前記カムローラの外周カム輪
郭面に向けて延びる揺動リンクとを有し、前記従動軸に
は接触子を固定するための取付部が設けられて成る請求
項2記載の枚葉製袋機。3. The operating means is provided with a cam roller which rotates at a predetermined speed by receiving power from a driving unit for running the base paper, as a motor node, and a rotational angular movement about an axis for swinging the contact up and down. And a swing link extending from the driven shaft toward the outer peripheral cam contour surface of the cam roller so as to impart a rotational angular motion to the driven shaft, and to fix a contact to the driven shaft. 3. The single-wafer bag making machine according to claim 2, further comprising: a mounting portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001106773A JP3574085B2 (en) | 2001-04-05 | 2001-04-05 | Single-wafer bag making machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001106773A JP3574085B2 (en) | 2001-04-05 | 2001-04-05 | Single-wafer bag making machine |
Publications (2)
Publication Number | Publication Date |
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JP2002301780A true JP2002301780A (en) | 2002-10-15 |
JP3574085B2 JP3574085B2 (en) | 2004-10-06 |
Family
ID=18959223
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JP2001106773A Expired - Fee Related JP3574085B2 (en) | 2001-04-05 | 2001-04-05 | Single-wafer bag making machine |
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JP (1) | JP3574085B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012506795A (en) * | 2008-10-27 | 2012-03-22 | ヴィントメーラー ウント ヘルシャー コマンディトゲゼルシャフト | Apparatus and method for further processing of semi-finished bags and a glue station for semi-finished bags |
CN109383073A (en) * | 2017-08-05 | 2019-02-26 | 无锡市神之恩精密机械有限公司 | A kind of novel single head automatic bottom-pasting machine |
-
2001
- 2001-04-05 JP JP2001106773A patent/JP3574085B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012506795A (en) * | 2008-10-27 | 2012-03-22 | ヴィントメーラー ウント ヘルシャー コマンディトゲゼルシャフト | Apparatus and method for further processing of semi-finished bags and a glue station for semi-finished bags |
CN109383073A (en) * | 2017-08-05 | 2019-02-26 | 无锡市神之恩精密机械有限公司 | A kind of novel single head automatic bottom-pasting machine |
Also Published As
Publication number | Publication date |
---|---|
JP3574085B2 (en) | 2004-10-06 |
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