JPH0435332Y2 - - Google Patents
Info
- Publication number
- JPH0435332Y2 JPH0435332Y2 JP1985077548U JP7754885U JPH0435332Y2 JP H0435332 Y2 JPH0435332 Y2 JP H0435332Y2 JP 1985077548 U JP1985077548 U JP 1985077548U JP 7754885 U JP7754885 U JP 7754885U JP H0435332 Y2 JPH0435332 Y2 JP H0435332Y2
- Authority
- JP
- Japan
- Prior art keywords
- saw blade
- paper
- saw
- cylinder
- presser
- 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
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、輪転印刷機における折機の鋸刃装置
に関し、特に紙の切断端面の針穴の拡大を防止し
た鋸刃装置に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to a saw blade device for a folding machine in a rotary printing press, and in particular to a saw blade device that prevents the expansion of needle holes on the cut edge of paper. .
（従来の技術）
従来、輪転印刷機における折機の鋸刃装置０１
は、第６図及び第７図に示す如く、通常、鋸胴０
２外周の軸心に対して対称位置に２個所配設され
るものであつて、その構造は鋸刃０４を挟んで、
その両面に鋸台０５ａ，０５ｂと、各鋸台０５
ａ，０５ｂとそれぞれＺ状に強固に結合された鋸
刃紙押え０６ａ，０６ｂが配置され、更にその両
面からプレート０７ａ，０７ｂを配して、これら
を一体に縫合わせているものである。(Prior Art) Conventionally, a saw blade device 01 of a folding machine in a rotary printing press
As shown in FIGS. 6 and 7, the saw barrel is usually 0.
2. They are arranged at two locations symmetrically with respect to the axis of the outer periphery, and the structure is such that the saw blade 04 is sandwiched between them.
Saw stands 05a, 05b on both sides, and each saw stand 05
Saw blade paper pressers 06a and 06b are arranged, which are firmly connected to a and 05b in a Z-shape, respectively, and plates 07a and 07b are placed on both sides of the saw blade paper pressers 06a and 06b, which are sewn together.
尚、この場合、鋸刃紙押え０６ａ，０６ｂは弾
性体からなり、例えばスポンジゴム等が使用され
ており、鋸胴０２の回転方向に対して、鋸刃０４
を挟んで前後の各鋸刃紙押え０６ａ，０６ｂの外
周面は同じ高さに取り付けられ、しかも鋸胴０２
の外周から数mm突出した状態で取り付けられてい
る。 In this case, the saw blade paper holders 06a and 06b are made of an elastic material, such as sponge rubber, and the saw blade 04 is
The outer peripheral surfaces of the front and rear saw blade paper holders 06a and 06b are installed at the same height, and the saw body 02
It is attached so that it protrudes several mm from the outer periphery.
この様な状態で、鋸胴０２は折胴０３と僅か
（２mm位）な距離を置いて、互いに反対方向に回
転するように設けられ、前工程の送りローラから
送り込まれた紙Ａを折胴０３との間に挟んで所定
長さに切断後、その端部は折胴０３に設けられた
針０９で突き刺された状態で送られる。 In this state, the saw cylinder 02 and the folding cylinder 03 are placed at a small distance (about 2 mm) and rotate in opposite directions, and the paper A fed from the feed roller in the previous process is transferred to the folding cylinder. 03 and cut into a predetermined length, the end thereof is pierced with a needle 09 provided on the folding drum 03 and sent.
また、切断後、先行している紙は、折胴０３に
設けられ自転しながら公転している折羽根０８を
もつて、所定長さに折り合わされて、次工程に送
り込まれる構成になつている。この場合紙Ａを鋸
胴０２と折胴０３に挟み込む際、各鋸刃紙押え０
６ａ，０６ｂが鋸胴表面より出ているため、鋸胴
０２の回転により、弾性体である鋸刃紙押え０６
ａ，０６ｂは、紙を介して折胴０３に接する時圧
縮される。この時折胴０３は鋸刃紙押え０６ａに
対し角度を持つて接し始めるため、同紙押え０６
ａが圧縮されるにつれ、その分力が紙の進行方向
に対して後方に働き、紙Ａは後方に引張られる。
また鋸刃紙押え０６ａの端からしごくように圧縮
して行くため、圧縮された鋸刃紙押え０６ａは逃
げるスペースのある後方に膨張し、折胴０３と鋸
刃紙押え０６ａに挟まれた紙Ａは進行方向に対し
て後方に引張られる状態となり、折胴に設けられ
た針０９で突き刺されている針穴が大きくなり、
時として紙Ａの切断端面の破れに波及するという
不具合があつた。 Further, after cutting, the preceding paper is folded into a predetermined length by folding blades 08 provided on the folding cylinder 03 and revolving while rotating on its own axis, and then sent to the next process. . In this case, when sandwiching paper A between saw cylinder 02 and folding cylinder 03, each saw blade paper presser 0
6a and 06b protrude from the surface of the saw cylinder, the rotation of the saw cylinder 02 causes the saw blade paper presser 06, which is an elastic body, to
a and 06b are compressed when they contact the folding cylinder 03 through the paper. At this time, the cylinder 03 starts to come into contact with the saw blade paper presser 06a at an angle, so that the paper presser 06a
As a is compressed, its component force acts backwards in the paper's traveling direction, and paper A is pulled backwards.
Also, since the saw blade paper presser 06a is compressed from the edge, the compressed saw blade paper presser 06a expands backwards where there is space to escape, and the paper sandwiched between the folding cylinder 03 and the saw blade paper presser 06a is compressed. A is pulled backwards in the direction of travel, and the needle hole pierced by the needle 09 provided on the folding drum becomes larger.
Occasionally, there was a problem that the cut end surface of paper A was torn.
（考案が解決しようとする問題点）
このように、従来のこの種鋸刃装置にあつて
は、鋸刃を挟んで前後にある弾性体からなる鋸刃
紙押えの表面突出高さを同じにしているために、
鋸胴が折胴に接して回転するとき、後の鋸刃紙押
え０６ａ部の圧縮により、折胴と鋸刃紙押えに挟
まれた紙は、進行方向に対して後方に引張られる
状態となつて、折胴に設けられた針で突き刺され
ている針穴が大きくなり、場合によつては切断端
面が破れるという問題点があつた。(Problem to be solved by the invention) In this way, in the conventional saw blade device of this type, the surface protrusion height of the saw blade paper holders made of elastic bodies sandwiching the saw blade at the front and back are made to be the same. In order to
When the saw blade rotates in contact with the folding cylinder, the paper sandwiched between the folding cylinder and the saw blade paper presser is pulled backwards in the direction of movement due to compression of the saw blade paper presser 06a. However, there was a problem in that the needle hole pierced by the needle provided on the folding drum became large, and in some cases, the cut end surface was torn.
なお、先行する鋸刃紙押え０６ｂは切断されて
先行する紙Ａの紙尻を保持する必要があるが、同
鋸刃紙押え０６ｂが圧縮される時、切断されて先
行する紙Ａから針０９は抜けているので、針穴が
大きくなることはない。 Note that the preceding saw blade paper presser 06b is cut and needs to hold the paper tail of the preceding paper A, but when the saw blade paper presser 06b is compressed, it is cut and the needle 09 is removed from the preceding paper A. Since the needle has gone through, the needle hole will not become large.
本考案は、以上の問題点を解決することを目的
としてなされたものであつて、紙の切断端面の針
穴が拡大せず、損紙の発生を少なくした鋸刃を提
供しようとするものである。 The present invention was made with the aim of solving the above problems, and aims to provide a saw blade that does not enlarge the needle hole on the cutting edge of paper and reduces the occurrence of paper waste. be.
（問題点を解決するための手段）
このため、本考案は輪転印刷機における折機の
鋸胴に取り付けて印刷紙を切断する鋸刃装置にお
いて、鋸刃を両側面から挟持し切断時の紙押え用
として設けられた弾性体からなる鋸刃紙押えの鋸
胴外周面からの突出表面高さを、鋸胴の回転方向
に対し、鋸刃を挟んで後続する紙押えを先行する
紙押えより所定寸法低く設定し組付けることを構
成として、これを上記問題点の解決手段とするも
のである。(Means for Solving the Problem) Therefore, the present invention is a saw blade device that is attached to the saw cylinder of a folding machine in a rotary printing press and cuts printed paper. The height of the protruding surface of the saw blade paper presser, which is made of an elastic body provided as a presser, from the outer peripheral surface of the saw cylinder, is determined by measuring the height of the protruding surface of the saw blade paper presser, which is made of an elastic body, from the outer circumferential surface of the saw cylinder. This is a means of solving the above problem by setting a predetermined dimension low and assembling it.
（作用）
鋸胴の回転方向に対して、鋸刃を挟んで後部の
鋸刃紙押えの表面突出高さを、前部の鋸刃紙押え
のそれより低く設定してあるために、前記鋸刃紙
押えが紙を介して折胴と接して回転するとき、前
記後部の鋸刃紙押えの表面周速差は小さくなり、
従つて紙を押えた際に後部鋸刃紙押え部では紙を
前後に引張る力も小さくなる。(Function) With respect to the rotating direction of the saw barrel, the surface protrusion height of the saw blade paper holder at the rear across the saw blade is set lower than that of the saw blade paper holder at the front. When the blade paper presser rotates in contact with the folding cylinder through the paper, the surface peripheral speed difference of the rear saw blade paper presser becomes small,
Therefore, when paper is held down, the force that pulls the paper back and forth in the rear saw blade paper holding section is also reduced.
（実施例）
以下、本考案の実施例を図面に従つて説明す
る。第１図は鋸胴２の軸方向に取り付けられた本
実施例に係る鋸刃装置１における鋸刃４の正面
図、第２図乃至第４図はそれぞれ第１図のＡ−Ａ
断面、Ｂ−Ｂ断面及びＣ−Ｃ断面図を示してい
る。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the saw blade 4 in the saw blade device 1 according to the present embodiment, which is attached in the axial direction of the saw barrel 2, and FIGS. 2 to 4 are A-A in FIG. 1, respectively.
A cross section, a BB cross section, and a CC cross section are shown.
鋸刃４は第３図で明らかに示している如く左側
面の弾性体からなる鋸刃紙押え６′がＺ状に結合
された鋸台５′にボルト４ａをもつて軸方向に数
個所固定されており、更にその右側面からは第４
図に示す如く、左側と同様に結合された鋸刃紙押
え６と鋸台５を当て、左右の鋸台５，５′を鋸胴
２の軸方向に数個所、ボルト５ａで固定してい
る。更に、前記両鋸台５，５′の側面から、夫々
プレート７，７′を当ててボルト７ａ，７a′で締
結させて、一体化した鋸刃装置１を構成するもの
である。 As clearly shown in FIG. 3, the saw blade 4 is fixed in several places in the axial direction with bolts 4a to a saw table 5' to which a saw blade paper holder 6' made of an elastic material on the left side is connected in a Z shape. and from the right side there is a fourth
As shown in the figure, the saw blade paper presser 6 and the saw stand 5, which are connected in the same way as on the left side, are placed against each other, and the left and right saw stands 5, 5' are fixed with bolts 5a at several places in the axial direction of the saw body 2. . Further, plates 7 and 7' are applied from the sides of both saw stands 5 and 5', respectively, and fastened with bolts 7a and 7a' to form an integrated saw blade device 1.
この様な鋸刃装置を組合わすに当り、鋸刃４を
挟んで一面側の鋸刃紙押え６′の上面を他面側の
鋸刃紙押え６の上面より所定寸法だけ下げて組付
けるもので、第２図乃至第４図に示す例では、一
面側の鋸刃紙押え６′と鋸台５′を他面のそれと同
じ形状として、一面側全体を下げたものとして示
してあるが、これに限るものではなく例えば第５
図に示す如く、一面側の鋸刃紙押え６′の肉厚だ
けを薄くして鋸刃紙押え６′の突出表面高さを下
げるようにしても良い。 When assembling such a saw blade device, the upper surface of the saw blade paper presser 6' on one side is lowered by a predetermined distance from the upper surface of the saw blade paper presser 6 on the other side with the saw blade 4 in between. In the examples shown in FIGS. 2 to 4, the saw blade paper holder 6' and saw table 5' on one side have the same shape as those on the other side, and the entire one side is shown lowered. It is not limited to this, but for example, the fifth
As shown in the figure, the height of the protruding surface of the saw blade paper presser 6' may be lowered by reducing only the thickness of the saw blade paper presser 6' on one side.
この様に組付けられた鋸刃装置１を、第６図に
示した従来例と同様に、鋸胴外周に２個所設け
て、紙Ａを折胴との間に挟んで切断すれば、鋸胴
の回転方向に対して後部の紙押え６′が前部の紙
押え６より低く設定して取り付けられているの
で、紙Ａを折胴との間で挟み押さえて送る際、後
部における紙押え表面の周速差が小さくなる。従
つて送られてくる紙を前後に引張る力が小さくな
り切断後の後続紙端面に突差された針穴の拡大を
防止することが可能となりものである。 If the saw blade device 1 assembled in this way is installed in two places on the outer periphery of the saw cylinder and the paper A is cut by sandwiching it between the saw blade and the folding cylinder, as in the conventional example shown in FIG. The paper presser 6' at the rear is set lower than the paper presser 6 at the front with respect to the direction of rotation of the cylinder, so when paper A is held between the folding cylinder and fed, the paper presser at the rear is lower than the paper presser 6' at the front. The difference in surface circumferential speed becomes smaller. Therefore, the force that pulls the paper being fed back and forth is reduced, making it possible to prevent the needle hole inserted into the end surface of the subsequent paper after cutting from expanding.
尚、第２図乃至第５図に示す各鋸刃装置断面図
は図に示す状態で鋸胴外周部に取り付けられ矢印
○イ方向に回転するものである。 The cross-sectional views of each saw blade device shown in FIGS. 2 to 5 are those in which the saw blade device is attached to the outer periphery of the saw barrel and rotates in the direction of arrow A in the state shown in the figures.
（考案の効果）
以上、詳しく説明した如く本考案によると、切
断後の後続する紙を押える鋸刃紙押えの周速と折
胴の周速との差を少なくすることにより、紙が前
後に引張られることを防止でき、紙に突き刺され
た針により針穴が拡大されることも無くなり、折
られた紙の折品質が向上すると共に、大巾な損紙
の減少が期待できるものである。(Effects of the invention) As explained in detail above, according to the invention, by reducing the difference between the circumferential speed of the saw blade paper presser and the circumferential speed of the folding cylinder, which press down the paper that follows after cutting, the paper moves forward and backward. It is possible to prevent the paper from being pulled, and the needle hole will not be enlarged by the needle sticking into the paper, improving the folding quality of the folded paper, and can be expected to significantly reduce the amount of paper waste.
第１図は本考案の実施例を示す鋸刃装置の正面
図、第２図乃至第４図は夫々第１図のＡ−Ａ，Ｂ
−Ｂ，Ｃ−Ｃの各断面図、第５図は他の実施例を
示す鋸刃装置の断面図、第６図は折機の概略断面
図、第７図は従来の鋸刃装置の詳細断面図であ
る。
図の主要部分の説明、１……鋸刃装置、４……
鋸刃、５，５′……鋸台、６，６′……鋸刃紙押
え。
FIG. 1 is a front view of a saw blade device showing an embodiment of the present invention, and FIGS. 2 to 4 are A-A and B in FIG. 1, respectively.
5 is a sectional view of a saw blade device showing another embodiment, FIG. 6 is a schematic sectional view of a folding machine, and FIG. 7 is a detail of a conventional saw blade device. FIG. Explanation of the main parts of the figure, 1... Saw blade device, 4...
Saw blade, 5,5'...Saw stand, 6,6'...Saw blade paper holder.
Claims (1)
刷紙を切断する鋸刃装置において、鋸刃を両側面
から挟持し切断時の紙押え用として設けられた弾
性体からなる鋸刃紙押えの鋸胴外周面からの突出
表面高さを、鋸胴の回転方向に対し、鋸刃を挟ん
で後続する紙押えを先行する紙押えより所定寸法
低く設定し組付けることを特徴とする鋸刃装置。 In a saw blade device that is attached to the saw cylinder of a folding machine in a rotary printing machine to cut printed paper, a saw blade paper presser saw consisting of an elastic body that holds the saw blade from both sides and serves as a paper presser during cutting. A saw blade device characterized in that the height of the protruding surface from the outer circumferential surface of the saw cylinder is set to be lower by a predetermined dimension than the preceding paper presser with respect to the rotating direction of the saw cylinder, so that the paper presser plate that follows the saw blade is sandwiched therebetween is set and assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985077548U JPH0435332Y2 (en) | 1985-05-24 | 1985-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985077548U JPH0435332Y2 (en) | 1985-05-24 | 1985-05-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61193968U JPS61193968U (en) | 1986-12-03 |
| JPH0435332Y2 true JPH0435332Y2 (en) | 1992-08-21 |
Family
ID=30620712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985077548U Expired JPH0435332Y2 (en) | 1985-05-24 | 1985-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0435332Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1937519A (en) * | 1932-01-26 | 1933-12-05 | Hoe & Co R | Cutting apparatus |
| JPS5312017B2 (en) * | 1973-08-10 | 1978-04-26 | ||
| JPS5414964A (en) * | 1977-07-01 | 1979-02-03 | Kohjin Co Ltd | Production of 2,3-dihydrofuran |
| JPS5751654A (en) * | 1980-09-03 | 1982-03-26 | Hitachi Seiko Ltd | Folding and cutting apparatus in rotary press machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5312017U (en) * | 1976-07-14 | 1978-02-01 | ||
| JPS5713546U (en) * | 1980-06-30 | 1982-01-23 | ||
| JPH0245240Y2 (en) * | 1985-04-24 | 1990-11-30 |
-
1985
- 1985-05-24 JP JP1985077548U patent/JPH0435332Y2/ja not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1937519A (en) * | 1932-01-26 | 1933-12-05 | Hoe & Co R | Cutting apparatus |
| JPS5312017B2 (en) * | 1973-08-10 | 1978-04-26 | ||
| JPS5414964A (en) * | 1977-07-01 | 1979-02-03 | Kohjin Co Ltd | Production of 2,3-dihydrofuran |
| JPS5751654A (en) * | 1980-09-03 | 1982-03-26 | Hitachi Seiko Ltd | Folding and cutting apparatus in rotary press machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61193968U (en) | 1986-12-03 |
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