JPS63293059A - Drive system of printing press - Google Patents
Drive system of printing pressInfo
- Publication number
- JPS63293059A JPS63293059A JP62128407A JP12840787A JPS63293059A JP S63293059 A JPS63293059 A JP S63293059A JP 62128407 A JP62128407 A JP 62128407A JP 12840787 A JP12840787 A JP 12840787A JP S63293059 A JPS63293059 A JP S63293059A
- Authority
- JP
- Japan
- Prior art keywords
- torque
- printing mechanism
- printing
- drive motor
- gears
- 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
- 238000007639 printing Methods 0.000 title claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 239000013598 vector Substances 0.000 description 9
- 230000006698 induction Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
- B41P2213/70—Driving devices associated with particular installations or situations
- B41P2213/73—Driving devices for multicolour presses
- B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft
Landscapes
- Rotary Presses (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は複数の印刷機構部をもつ印刷機械、例えば枚葉
オブセット印刷機の駆動方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a driving system for a printing machine having a plurality of printing mechanisms, such as a sheet-fed offset printing machine.
（従来の技術）
従来の多色印刷機械は第２図に示す如く各色用の印刷機
構部１〜４を連結歯車５〜１１またはラインシャフトで
結合し、任意の１つの印刷機構部を電動機１２で駆動し
ていた。連結歯車５，７．・９および１１は例えば各印
刷機構部における圧胴用歯車とし、連結歯車６，８およ
び１０は順次の圧胴用歯車相互間に介在し、隣接の圧胴
用歯車に噛合する受渡胴周歯車とする。各印刷機構部に
おいて圧胴用歯車５，７．９または１１は、それぞれゴ
ム胴用歯車５ａ、 ７ａ、 ９ａまたはｌｌａに噛合し
、これらゴム胴用歯車は版胴用歯車５ｂ、 ７ｂ、 ９
ｂまたはｌｌｂに噛合し、これら版胴用歯車はインク胴
周歯車５ｃ、 ７ｃ。(Prior Art) In a conventional multicolor printing machine, as shown in FIG. It was being driven by. Connecting gears 5, 7.・9 and 11 are, for example, impression cylinder gears in each printing mechanism section, and connection gears 6, 8, and 10 are delivery cylinder circumferential gears that are interposed between successive impression cylinder gears and mesh with adjacent impression cylinder gears. shall be. In each printing mechanism, the impression cylinder gear 5, 7.9 or 11 meshes with the blanket cylinder gear 5a, 7a, 9a or lla, respectively, and these blanket cylinder gears are connected to the plate cylinder gear 5b, 7b, 9.
These plate cylinder gears are ink cylinder peripheral gears 5c and 7c.
９ＣまたはｌＩＣに噛合する。用紙は各印刷機構部のゴ
ム胴と圧胴間を通過し、次にこの圧胴と受渡胴との間を
通過し、後続の印刷機構部へと順次に送られ多色印刷が
行われる。Mates with 9C or IC. The paper passes between the blanket cylinder and the impression cylinder of each printing mechanism section, then passes between the impression cylinder and the transfer cylinder, and is sequentially sent to the subsequent printing mechanism section, where multicolor printing is performed.
（発明が解決しようとする問題点）
しかし、従来の方式では、各色間の印刷の色ずれをなく
し、高い品質の印刷物を得るには、順次の隣接する印刷
機構部相互を結合する連結歯車５〜１１の歯車列におけ
るバックラッシュを極力小さくすることが必要となる。(Problems to be Solved by the Invention) However, in the conventional method, in order to eliminate color misalignment in printing between each color and obtain high-quality printed matter, the connecting gear 5 that connects sequentially adjacent printing mechanism parts to each other It is necessary to minimize the backlash in the gear train 11.
そのため、これら連結歯車は高精度の歯車である必要が
あり、且つ、固くかみ合せ、トルク伝達効率を犠牲にし
て使用されることが少なくなく、また摩耗しやすく、歯
車の価格、摩耗に対する保守、調整作業ふよびこれらに
費やされる費用共に高価なものとなっている。Therefore, these connecting gears need to be highly accurate gears, and are often used at the expense of torque transmission efficiency due to tight meshing, and are also prone to wear, which reduces the cost of gears, maintenance for wear, and Both the adjustment work and the costs involved are expensive.
さらに、各種の色数により第２図の１〜４の印刷部の構
成が変化するが、駆動電動機の所要出力も当然変化する
。生産効率上は、これらの印刷部を同一の設計とし、数
量を変えて詰合せることが好都合であるが、この場合連
結歯車は、利用される最多色のトルクに耐える大形のも
のとする必要があり、全体の生産コスト低減を困難にし
ていた。Furthermore, although the configuration of the printing units 1 to 4 in FIG. 2 changes depending on the number of colors, the required output of the drive motor naturally changes as well. In terms of production efficiency, it is convenient to have these printing units of the same design and assemble them in different quantities, but in this case, the connecting gear needs to be large enough to withstand the torque of the most colors used. This made it difficult to reduce overall production costs.
本発明はこの様な点に鑑みなされたもので、機構部を簡
略化し、印刷機全体の生産効率を高め、生産コストの低
減可能な駆動方式を提供することを目的とするものであ
る。The present invention has been made in view of these points, and an object of the present invention is to provide a drive system that can simplify the mechanism, increase the production efficiency of the entire printing press, and reduce production costs.
（問題点を解決するための手段）
この目的を達成するため本発明による印刷機械の駆動方
式は、複数の印刷機構部を歯車またはラインシャフトに
て機械的に連結して駆動する多色印刷機の駆動方式にお
いて、各印刷機構部に各々駆動用電動機を設け、そのう
ちの１台の電動機を速度制御し、他の電動機は、前記速
度制御される電動機の出力トルクに所定の関係を持つト
ルクにて運転せしめ、前記、各印刷機構部間の連結歯車
にはそれぞれ常に一方向のトルクが生ずる様に制御する
ことを特徴とする。(Means for solving the problem) In order to achieve this object, the drive system of the printing machine according to the present invention is a multicolor printing machine in which a plurality of printing mechanisms are mechanically connected and driven by gears or line shafts. In this drive method, each printing mechanism section is provided with a drive motor, one of which is controlled in speed, and the other motor is controlled to generate a torque that has a predetermined relationship with the output torque of the motor whose speed is controlled. The printing mechanism is controlled such that torque is always generated in one direction in each of the connecting gears between the printing mechanism parts.
（作 用）
各印刷機構部毎に駆動電動機を配置することにより、連
結歯車の所要伝達トルクが極めて小さくてすむ上、その
伝達トルクの方向が常に一定になる様、各駆動電動機を
制御すれば連結歯車にバックラッシュを生ずることがな
いので、それ程精密でない小形の歯車を使用することが
できる。(Function) By arranging a drive motor for each printing mechanism section, the required transmission torque of the connecting gears can be extremely small, and each drive motor can be controlled so that the direction of the transmission torque is always constant. Since there is no backlash in the connecting gears, smaller, less precise gears can be used.
以下、図面につき本発明の具体的実施例について説明す
る。Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
（実施例）
第１図は、第２図と同様な多色印刷機に本発明を適用す
る原理的構成例を示すもので、第２図と同一番号を付し
たものは、出力、大きさ等は異なるが、同一の性質の構
成物である。図示の例では４個の印刷機構部を設けたも
のを示したがこれに限定するものでなく、その他の複数
個とすることができること勿論である。(Example) Fig. 1 shows an example of the principle configuration of applying the present invention to a multicolor printing machine similar to Fig. 2. Although they are different, they are constructs with the same properties. In the illustrated example, four printing mechanism sections are provided, but the present invention is not limited to this, and it is of course possible to use a plurality of other printing mechanism sections.
図から明らかなように、本発明によれば各印刷機構部１
〜４には各々駆動電動機１３〜１６を付加する。As is clear from the figure, according to the present invention, each printing mechanism section 1
-4 are provided with drive motors 13-16, respectively.
この駆動電動機１３〜１６は、その出力トルクあるいは
それに相当するものが、任意の値に指令制御可能なもの
を用いる。The drive motors 13 to 16 are motors whose output torque or its equivalent can be command-controlled to any value.
これは出力トルクあるいはそれに相当するものが指令制
御出来れば良く、例えば一定励磁される直流電動機の電
機子電流制御するもの、ベクトル制御方式インバータ、
または昭和６２年２月社団法人電気学会発行の電気学会
論文誌り、 １０７巻２号２２３〜２３０頁記載の様な
瞬時空間ベクトル制御方式インバータにより誘導電動機
を駆動するものなど、各種の方式が利用可能である。This only needs to be able to command and control the output torque or something equivalent to it; for example, a device that controls the armature current of a DC motor that is constantly excited, a vector control type inverter,
Alternatively, various methods are used, such as one in which an induction motor is driven by an instantaneous space vector control method inverter, as described in the Journal of the Institute of Electrical Engineers of Japan, Vol. 107, No. 2, pp. 223-230, published in February 1986 by the Institute of Electrical Engineers of Japan. It is possible.
第３図は瞬時空間ベクトル制御インバータと誘導電動機
を用いた駆動方式のブロック図である。FIG. 3 is a block diagram of a drive system using an instantaneous space vector control inverter and an induction motor.
瞬時空間ベクトル制御インバータによる誘導電動機駆動
の動作原理については前記文献により公知であるから詳
細な説明は省略する。図で瞬時空間ベクトル演算器２９
〜３２は出力電圧センサ１７〜２０と、出力電流センサ
２１〜２４より出力トルクを演算し、トルク指令信号３
６〜３９に一致せしめるべく瞬時空間ベクトル制御イン
バータ２５〜２８を制御する。速度演算器３３は速度セ
ンサ３５の出力を速度設定器３４にて設定された印刷速
度と比較し、その出力の偏差信号４０を、速度制御用増
幅器４４で増幅し、偏差に見合ったトルク指令信号３６
を発生することで定速度制御を行う。なお４５は加減算
器で、その出力４０は速度設定器３４と、速度センサ３
５の各々の出力の偏差信号である。The operating principle of driving an induction motor by an instantaneous space vector control inverter is well known from the above-mentioned literature, so a detailed explanation will be omitted. In the figure, instantaneous space vector calculator 29
~32 calculates the output torque from the output voltage sensors 17~20 and the output current sensors 21~24, and outputs the torque command signal 3.
The instantaneous space vector control inverters 25 to 28 are controlled to match the vectors 6 to 39. The speed calculator 33 compares the output of the speed sensor 35 with the printing speed set by the speed setting device 34, and amplifies the deviation signal 40 of the output with the speed control amplifier 44 to generate a torque command signal commensurate with the deviation. 36
Constant speed control is performed by generating . Note that 45 is an adder/subtracter, and its output 40 is sent to the speed setter 34 and the speed sensor 3.
5 is a deviation signal of each output.
図から明らかなように第１のスタンド（印刷機構部）１
０１の駆動電動機１３は常に速度制御にて運転される。As is clear from the figure, the first stand (printing mechanism section) 1
The drive motor 13 of No. 01 is always operated under speed control.
第２のスタンド１０２の駆動電動機１４は第１のスタン
ド１０１のトルク指令信号３６に、トルク偏差設定器４
１および加減算器４６によって所定の偏差が加えられた
トルク指令信号３７にて運転される。すなわち第１のス
タンドの駆動電動機１３と、第２のスタンドの駆動電動
機１４との出力トルクは常に所定の偏差をもって運転さ
れる。The drive motor 14 of the second stand 102 receives the torque command signal 36 of the first stand 101 from the torque deviation setting device 4.
1 and a torque command signal 37 to which a predetermined deviation is added by an adder/subtractor 46. That is, the output torques of the drive motor 13 of the first stand and the drive motor 14 of the second stand are always operated with a predetermined deviation.
同様に第３のスタンドの駆動電動機１５は第２のスタン
ドの駆動電動機１４のトルク指令信号３７に、トルク偏
差設定器４２および加減算器４７によって所定の偏差が
加えられる。Similarly, for the drive motor 15 of the third stand, a predetermined deviation is added to the torque command signal 37 of the drive motor 14 of the second stand by a torque deviation setter 42 and an adder/subtractor 47.
トルク指令信号３８で、第４のスタンドの駆動電動機１
６は第３のスタンドの駆動電動機１５のトルク指令信号
３８にトルク偏差設定器４３および加減算器４８によっ
て所定の偏差を加えたトルク指令信号３９でそれぞれ運
転される。With the torque command signal 38, the drive motor 1 of the fourth stand
6 is operated with a torque command signal 39 obtained by adding a predetermined deviation to the torque command signal 38 of the drive motor 15 of the third stand by a torque deviation setting device 43 and an adder/subtractor 48.
トルク偏差設定器４１〜４３は任意の値に設定しうる。The torque deviation setters 41 to 43 can be set to arbitrary values.
例えば、駆動電動機１３と１５を同一発生トルクで、１
４と１６の発生トルクを、１３と１５の発生トルクに比
較してその定格トルクの５％少ない値に、あるいは逆に
１０％多い値に設定することも可能である。このトルク
偏差設定器４１〜４３の目的は、第１に示す連結歯車５
〜１１の各々に常に一方向の伝達トルクを発生させ、そ
のバックラッシュに起因する印刷ずれをなくすことにあ
る。従ってこの目的のために、第３図のトルク偏差設定
器４１〜４３の出力は一定値である必要はなく、例えば
、前段スタンドのトルク指令値が大きければ、トルク偏
差値もそれにつれて大きくすることも可能である。For example, if the drive motors 13 and 15 have the same generated torque, 1
It is also possible to set the generated torques of Nos. 4 and 16 to a value that is 5% less than the rated torque, or conversely to a value that is 10% more than the rated torques of Nos. 13 and 15. The purpose of the torque deviation setting devices 41 to 43 is to
The purpose of this invention is to always generate transmission torque in one direction in each of the elements 1 to 11, and to eliminate printing deviations caused by backlash. Therefore, for this purpose, the outputs of the torque deviation setters 41 to 43 shown in FIG. is also possible.
（発明の効果） 本発明によれば、以下に示す効果が得られる。(Effect of the invention) According to the present invention, the following effects can be obtained.
（１）各印刷機構部の連結歯車あるいはラインシャフト
等は、必ずしも全ての駆動トルクを担うことなく各スタ
ンド間の不足トルクを伝達する程度の著しく小形のもの
で十分となる。(1) It is sufficient for the connecting gears or line shafts of each printing mechanism to be extremely small enough to transmit insufficient torque between each stand without necessarily carrying all of the driving torque.
（２）各印刷機構部の連結歯車、あるいはラインシャフ
ト等に余裕があればどれかのスタンドの駆動装置が故障
した場合でも、残りの駆動装置で印刷を続行することが
できる。(2) If there is sufficient space in the connecting gears or line shafts of each printing mechanism, even if the drive device of one of the stands breaks down, printing can be continued with the remaining drive devices.
（３）各印刷機構部間の連結歯車あるいはラインシャフ
ト等はそれぞれ常に一方向の伝達トルクで駆動されるの
で、バックラッシュ量の大きな、言い換えれば低精度の
ものを使用出来る。従って綿密な調整作業を要しない。(3) Since the connecting gears or line shafts between the printing mechanism parts are always driven by transmission torque in one direction, gears with a large amount of backlash, in other words, with low precision can be used. Therefore, no detailed adjustment work is required.
（４）各々のスタンドに駆動装置を付加するので、各ス
タンド単体での駆動も可能となり、各スタンド単位の生
産、試験、保守が可能で、その自由度が大きくなる。(4) Since a drive device is added to each stand, it becomes possible to drive each stand alone, making it possible to produce, test, and maintain each stand, increasing the degree of freedom.
（５）歯車のバックラッシュに起因する印刷ずれがなく
なるので、高精度印刷が可能である。(5) High-precision printing is possible because printing deviations caused by gear backlash are eliminated.
（６）スタンド数にかかわらず、各電動機容量を共通に
出来るので発注の手間や在庫量の削減が可能である。(6) Regardless of the number of stands, the capacity of each motor can be shared, reducing the effort and inventory required for ordering.
なお第１図で平歯車連結の例を示したが、ライシャフト
とベベル歯車等を使用するものでも全く同様に実用出来
ることは当然である。Although FIG. 1 shows an example of a spur gear connection, it goes without saying that a structure using a lie shaft and a bevel gear can also be put to practical use in exactly the same way.
また第３図では第１スタンドの駆動電動機を速度制御機
としたが、どの位置の駆動電動機を速度制御機とするこ
とも可能であることは勿論である。Further, in FIG. 3, the drive motor of the first stand is used as a speed controller, but it is of course possible to use the drive motor at any position as a speed controller.
第１図は本発明の実施例を示す図面、
第２図は従来の実施例を示す図面、
第３図は本発明の実施例のうち電動機制御ブロック図の
例を示す図面である。
１、２．３．４・・・印刷機構部
５、７．９．１１・・・連結歯車（圧胴用歯車）５ａ、
７ａ、 ９ａ’、 ｌｌａ ・・・ゴム胴用歯車５ｂ
、 ７ｂ、 ９ｂ、 ｌｌｂ・・・版胴用歯車５ｃ、
７ｃ、 ９ｃ、 ｌｌｃ・・・インク胴周歯車６、８．
１０・・・受渡制用歯車
１２・・・駆動電動機
１３、１４．１５．１６・・・駆動電動機（誘導電動機
）１７、１８．１９．２０・・・出力電圧センサ２１、
２２．２３．２４・・・出力電流センサ２５．２６．２
７．２８・・・瞬時空間ベクトル制御インバータ２９、
３０．３１．３２・・・瞬時空間ベクトル演算器３３・
・・速度演算器 ３４・・・速度設定器３５・・
・速度センサ
３６、３７．３８．３９・・・トルク指令信号４０・・
・偏差信号
４１、４２．４３・・・トルク偏差設定器４４・・・速
度制御用増幅器
４５、４６．４７．４８・・・加減算器１０１、１０２
．１０３．１０４・・・印刷機構部のスタンド特許出願
人 東洋電機製造株式会社
第１図FIG. 1 is a drawing showing an embodiment of the present invention, FIG. 2 is a drawing showing a conventional embodiment, and FIG. 3 is a drawing showing an example of a motor control block diagram of an embodiment of the present invention. 1, 2.3.4... Printing mechanism section 5, 7.9.11... Connection gear (impression cylinder gear) 5a,
7a, 9a', lla...Rubber cylinder gear 5b
, 7b, 9b, llb... plate cylinder gear 5c,
7c, 9c, llc... Ink cylinder gears 6, 8.
10... Delivery control gear 12... Drive motor 13, 14.15.16... Drive motor (induction motor) 17, 18.19.20... Output voltage sensor 21,
22.23.24...Output current sensor 25.26.2
7.28... Instantaneous space vector control inverter 29,
30.31.32... Instantaneous space vector calculator 33.
...Speed calculator 34...Speed setter 35...
・Speed sensor 36, 37, 38, 39...Torque command signal 40...
- Deviation signals 41, 42.43...Torque deviation setter 44...Speed control amplifier 45, 46.47.48...Adder/subtractor 101, 102
．． 103.104...Stand of printing mechanism department Patent applicant Toyo Denki Seizo Co., Ltd. Figure 1
Claims (1)
機械的に連結して駆動する多色印刷機の駆動方式におい
て、各印刷機構部に各々駆動用電動機を設け、そのうち
の１台の電動機を速度制御し、他の電動機は、前記速度
制御される電動機の出力トルクに所定の関係を持つトル
クにて運転せしめ、前記、各印刷機構部間の連結歯車に
はそれぞれ常に一方向のトルクが生ずる様に制御するこ
とを特徴とする印刷機械の駆動方式。 ２、各駆動用電動機の発生トルクは、隣接の印刷機構部
の駆動電動機のトルクに対して一定の偏差をもつ様に制
御されることを特徴とする特許請求の範囲第１項記載の
印刷機械の駆動方式。[Claims] 1. In a drive system for a multicolor printing press in which a plurality of printing mechanisms are mechanically connected and driven by gears or line shafts, each printing mechanism is provided with a driving electric motor, and The speed of one electric motor is controlled, and the other electric motor is operated at a torque having a predetermined relationship with the output torque of the electric motor whose speed is controlled, and the connecting gears between the printing mechanism parts are always connected to each other. A printing machine drive system characterized by control so that torque is generated in one direction. 2. The printing machine according to claim 1, wherein the generated torque of each drive motor is controlled to have a constant deviation from the torque of the drive motor of an adjacent printing mechanism section. drive method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62128407A JPH0813542B2 (en) | 1987-05-27 | 1987-05-27 | Driving method of printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62128407A JPH0813542B2 (en) | 1987-05-27 | 1987-05-27 | Driving method of printing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63293059A true JPS63293059A (en) | 1988-11-30 |
| JPH0813542B2 JPH0813542B2 (en) | 1996-02-14 |
Family
ID=14984019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62128407A Expired - Fee Related JPH0813542B2 (en) | 1987-05-27 | 1987-05-27 | Driving method of printing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0813542B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0930160A1 (en) * | 1993-12-29 | 1999-07-21 | Maschinenfabrik Wifag | Rotary printing machine |
| CN105668237A (en) * | 2016-04-21 | 2016-06-15 | 葛瑜 | Fully-automatic screen printing machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58220750A (en) * | 1982-06-03 | 1983-12-22 | フオルクスアイゲネルベトリ−プ・コンビナ−ト・ポリグラフ゛ベルナ−・ランベルツ゛ライプツイヒ | Method and device for determining position in printer |
| JPS61266249A (en) * | 1985-05-22 | 1986-11-25 | Mitsubishi Heavy Ind Ltd | Doubling preventive device of press |
-
1987
- 1987-05-27 JP JP62128407A patent/JPH0813542B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58220750A (en) * | 1982-06-03 | 1983-12-22 | フオルクスアイゲネルベトリ−プ・コンビナ−ト・ポリグラフ゛ベルナ−・ランベルツ゛ライプツイヒ | Method and device for determining position in printer |
| JPS61266249A (en) * | 1985-05-22 | 1986-11-25 | Mitsubishi Heavy Ind Ltd | Doubling preventive device of press |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0930160A1 (en) * | 1993-12-29 | 1999-07-21 | Maschinenfabrik Wifag | Rotary printing machine |
| CN105668237A (en) * | 2016-04-21 | 2016-06-15 | 葛瑜 | Fully-automatic screen printing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0813542B2 (en) | 1996-02-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |