CN109572163B - Rotary folding device with variable cutting specifications and folding method - Google Patents

Rotary folding device with variable cutting specifications and folding method Download PDF

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Publication number
CN109572163B
CN109572163B CN201811650337.1A CN201811650337A CN109572163B CN 109572163 B CN109572163 B CN 109572163B CN 201811650337 A CN201811650337 A CN 201811650337A CN 109572163 B CN109572163 B CN 109572163B
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paper
roller
folding
cutting
cylinder
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CN109572163A (en
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丁健
黄民松
王水林
彭勇
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Goss Graphic Systems China Co ltd
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Goss Graphic Systems China Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/54Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56Folding or cutting
    • B41F13/62Folding-cylinders or drums

Abstract

The invention discloses a rotary folding device with variable cutting specifications, which is characterized in that a set square, a pair of first paper drawing rolls, a pair of punching rollers, a pair of second paper drawing rolls, a pair of third paper drawing rolls, a pair of cutting rollers, a conveying belt, a poking needle roller and a folding roller are sequentially arranged according to the path of a paper tape, wherein the first paper drawing rolls, the second paper drawing rolls and the third paper drawing rolls are all driven by a paper drawing roll motor; the punching roller and the cutting roller are driven by a paper cutting roller motor; the poking needle cylinder and the folding cylinder are both driven by a main motor. The invention also discloses a rotary folding method with variable cutting specifications. The folding method can flexibly change the folding and cutting specification according to the printing specification, meet the requirement of variable printing specification of the flexible books and periodicals, enable one folding machine to realize folding of various specifications, and can adapt to cutting and folding of paper with any printing length from 546mm to 625 mm. Compared with the traditional book and periodical folding device, the device is economical and practical. Compared with the adoption of a single-sheet cutting machine, the speed is obviously improved.

Description

Rotary folding device with variable cutting specifications and folding method
Technical Field
The invention relates to a rotary folding device with variable cutting specifications and a folding method.
Background
At present, the paper printing specification of the newspaper and book rotary press is fixed, and the cutting specification of a matched folding machine is also the same. The cutting specifications of books and newspapers in China are mostly 546mm and 625mm, but printed matters of various specifications are more and more in the market nowadays, if printing manufacturers need to print products of other specifications, printing machines of special specifications need to be purchased, and for manufacturers, the occupied space is increased, and the economic expenditure is not small.
Fig. 1 shows a folding and cutting device of a current book and periodical folding machine. Taking a 625mm cut as an example, the web 10 passes from the printing section to the folding section, passing through the set square 1 to complete a first longitudinal fold. Subsequently, by being pulled by the pair of first drawing rollers 21 and the pair of second drawing rollers 22, the sheet 10 is punched by the lateral puncher 30 provided on the pair of punching cylinders 3 between the first drawing rollers 21 and the second drawing rollers 22, and then enters between the cutting cylinder 4 and the pin cylinder 5. The cutter 40 on the cutting cylinder 4 extends to cut the paper tape 10, and the poking needle on the poking needle cylinder 5 extends to drive the paper tape to the folding cylinder 6 to complete the eight-fold folding (first transverse folding), and the folding cylinder 6 can drive the paper tape to the sixteenth folding cylinder 7 to fold the paper.
In this set of arrangements all the rollers and drums are geared together and driven by a main motor 100, the gear ratio between each roller and drum is fixed, so the speed ratio is also fixed. The linear velocities of the outer surfaces of the first and second pair of draw rollers 21, 22, the punching position of the lateral punch 30, and the cutting position of the cutter 40 are all kept consistent with the printing specification and cannot be changed. This folding and cutting method can only be used for one cutting size, and the entire folding machine must be replaced if 546mm or other sizes are to be cut.
In recent years, a printing method for flexo-printing books and periodicals has been gradually developed. One of the features of flexographic printing is that it is possible to print prints of different repeat lengths by changing plate cylinders of different diameters, i.e. the print specifications are variable. In order to match flexography, a folder is needed that has a correspondingly variable cutting profile.
Disclosure of Invention
The invention aims to provide a rotary folding device with variable cutting specifications, which can flexibly change the cutting and folding specifications according to the printing specifications and meet the requirement of variable printing specifications of flexible books and periodicals.
One technical scheme for achieving the above purpose is as follows: a rotary folding device with variable cutting specification comprises a set square, a pair of first draw rolls, a pair of punching cylinders, a pair of second draw rolls, a pair of third draw rolls, a pair of cutting cylinders, a conveyer belt, a poking needle cylinder and a folding cylinder which are arranged in sequence according to the path of a paper tape,
the first paper drawing roller, the second paper drawing roller and the third paper drawing roller are all driven by a paper drawing roller motor;
the punching roller and the cutting roller are driven by a paper cutting roller motor;
the poking needle cylinder and the folding cylinder are both driven by a main motor.
In the above rotary folding device with variable cutting specifications, the main motor drives the poking needle cylinder sequentially through the first synchronous belt transmission mechanism and the first gear transmission mechanism, and the poking needle cylinder transmits the driving force to the folding cylinder through the synchronous gear transmission mechanism.
The rotary folding device with the variable cutting specification is characterized in that the paper cutting roller motor sequentially passes through the second synchronous belt transmission mechanism and the two sets of second gear transmission mechanisms to transmit driving force to the punching roller and the cutting roller respectively.
The rotary folding device with the variable cutting specification is characterized in that the paper drawing roller motor sequentially transmits driving force to the first paper drawing roller and the second paper drawing roller through a third synchronous belt transmission mechanism and two sets of third gear transmission mechanisms, and the second paper drawing roller transmits the driving force to the third paper drawing roller through a fourth gear transmission mechanism.
The rotary folding device with the variable cutting specification is characterized in that the poking needle roller is a double-diameter roller, two sets of folding knives and two sets of poking needles are uniformly distributed on the poking needle roller, and the included angles between the two sets of folding knives and the two sets of poking needles can be adjusted by the two sets of folding knives.
The other technical scheme for realizing the purpose is as follows: a rotary folding method with variable cutting specifications comprises the following steps:
the method comprises the following steps that firstly, a paper tape is led out from a position between a printing plate cylinder and an impression cylinder of a printing machine, then passes through a triangular plate to complete longitudinal first folding, and then is pulled out by a first paper pulling roll, a second paper pulling roll and a third paper pulling roll in sequence;
when the printing specification changes, namely the diameter of the printing plate cylinder changes and the rotating speed does not change, the moving speed of the paper tape changes, and the linear speed of the peripheral surface of the first paper drawing roller, the linear speed of the peripheral surface of the second paper drawing roller and the linear speed of the peripheral surface of the third paper drawing roller are adjusted to be consistent with the moving speed of the paper tape by a paper drawing roller motor;
conveying the paper tape between a pair of punching rollers by a first paper drawing roller and a second paper drawing roller, and finishing punching by a transverse puncher on the punching rollers; the rotating speed of the punching cylinder is adjusted to be consistent with that of the printing plate cylinder through the paper cutting roller motor, the linear speed of the peripheral surface of the punching cylinder is adjusted to be consistent with the moving speed of the paper tape through the paper cutting roller motor in the time of 15-25 degrees before and after the contact between a transverse puncher on the punching cylinder and the punching position of the paper tape, and then the rotating speed of the punching cylinder is adjusted to be consistent with that of the printing plate cylinder through the paper cutting roller motor;
conveying the paper tape between a pair of cutting rollers by a first paper drawing roller and a second paper drawing roller, and cutting the paper tape by a cutter on the cutting rollers; the rotating speed of the cutting cylinder is adjusted to be consistent with that of the printing plate cylinder through a paper cutting roller motor, the linear speed of the outer peripheral surface of the cutting cylinder is adjusted to be consistent with the moving speed of the paper tape through the paper cutting roller motor in the time of 15-25 degrees before and after the cutting knife on the cutting cylinder is contacted with the cutting position of the paper tape, and then the rotating speed of the cutting cylinder is adjusted to be consistent with that of the printing plate cylinder through the paper cutting roller motor;
fourthly, the cut paper is conveyed to a poking needle roller by a conveying belt, the paper is pricked by a poking needle on the poking needle roller and is driven to the position between the poking needle roller and the folding roller along with the rotation of the paper, and a folding knife on the poking needle roller is matched with a clamping plate on the folding roller to complete transverse folding, namely eight-opening folding; the rotation speed of the poking needle cylinder is adjusted to be twice of the rotation speed of the plate cylinder through a main motor and is kept unchanged; and adjusting included angles between the two sets of folding knives on the stamping needle roller and the two sets of stamping needles positioned in front of the two sets of folding knives in the rotating direction corresponding to the printing specification, so that the folding knives extend out of the middle position of the paper.
The rotary folding device with variable cutting specifications and the folding method have the following advantages: three independent motors are adopted to drive three pairs of paper drawing rolls, a punching cylinder, a cutting cylinder, a poking needle cylinder and a folding cylinder respectively, the rotating speeds of the paper drawing rolls, the punching cylinder and the cutting cylinder can be adjusted independently according to the change of printing speed, the paper cutting and punching specification and printing specification matching can be guaranteed, the position of a folding knife on the poking needle cylinder is adjustable, the folding after the printing specification is changed is met, and the paper cutting and folding capable of adapting to any printing length between 546mm and 625mm can be achieved. The invention can flexibly change the folding and cutting specification according to the printing specification, meet the requirement of the flexible books and periodicals for variable printing specification and ensure that one folding machine can realize folding of various specifications. Compared with the traditional book and periodical folding device, the device is economical and practical. Compared with the adoption of a single-sheet cutting machine, the speed is obviously improved.
Drawings
FIG. 1 is a schematic view of a prior art rotary folding apparatus with variable cutoff specifications;
fig. 2 is a schematic view of the configuration of the rotary folding device with variable cut-to-size according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 2, the rotary folding apparatus of the present invention, in which a set square 1, a pair of first draw rolls 21, a pair of punching cylinders 3, a pair of second draw rolls 22, a pair of third draw rolls 23, a pair of cutting cylinders 4, a conveyor belt 45, a pin cylinder 5 and a folding cylinder 6 are sequentially arranged in a path of a paper web 10, wherein,
the first drawing roller 21, the second drawing roller 22 and the third drawing roller 23 are all driven by a drawing roller motor 200; the paper drawing roller motor 200 sequentially transmits the driving force to the first paper drawing roller 21 and the second paper drawing roller 22 through a third synchronous belt transmission mechanism 201 and two sets of third gear transmission mechanisms, and the second paper drawing roller 22 transmits the driving force to the third paper drawing rollers through a fourth gear transmission mechanism.
The punching roller 3 and the cutting roller 4 are driven by a paper cutting roller motor 300; the paper cutting roller motor 300 sequentially transmits the driving force to the punching roller 3 and the cutting roller 4 through the second synchronous belt transmission mechanism 301 and the two sets of second gear transmission mechanisms;
the poking needle cylinder 5 and the folding cylinder 6 are both driven by a main motor 100; the main motor 100 drives the pin pricking cylinder 5 sequentially through the first synchronous belt transmission mechanism 101 and the first gear transmission mechanism, and the pin pricking cylinder 5 transmits the driving force to the folding cylinder 6 through the synchronous gear transmission mechanism; the poking needle roller 5 is a double-diameter roller, two sets of folding knives and two sets of poking needles are uniformly distributed on the poking needle roller 5, and the included angles between the two sets of folding knives and the two sets of poking needles can be adjusted;
the rotary folding device with the variable cutting specification can be used for cutting and folding paper with any printing length from 546mm to 625 mm.
The invention relates to a rotary folding method with variable cutting specifications, which comprises the following steps:
step one, after being led out from a position between a printing plate cylinder and an impression cylinder of a printing machine, a paper tape 10 passes through a triangular plate 1 to complete longitudinal first folding, and then is pulled out by a first paper pulling roller 21, a second paper pulling roller 22 and a third paper pulling roller 23 in sequence;
when the printing specification changes, that is, the diameter of the plate cylinder changes and the rotating speed does not change, the moving speed of the paper tape 10 changes, and the linear speed of the outer peripheral surface of the first drawing roller 21, the linear speed of the outer peripheral surface of the second drawing roller 22 and the linear speed of the outer peripheral surface of the third drawing roller 23 are adjusted to be consistent with the moving speed of the paper tape 10 by the drawing roller motor 300, so that the paper drawing stability is ensured;
secondly, the paper tape 10 is conveyed between the pair of perforating rollers 3 by the first drawing roller 21 and the second drawing roller 22, and perforating is finished by the transverse puncher 30 on the perforating rollers 3; the rotating speed of the perforating cylinder 3 is adjusted to be consistent with the rotating speed of the printing plate cylinder through the paper cutting roller motor 200, the linear speed of the peripheral surface of the perforating cylinder 3 is adjusted to be consistent with the moving speed of the paper tape 10 through the paper cutting roller motor 200 in the time of 15-25 degrees before and after the contact between the transverse puncher 30 on the perforating cylinder 3 and the punching position of the paper tape 10, and then the rotating speed of the perforating cylinder 3 is adjusted to be consistent with the rotating speed of the printing plate cylinder through the paper cutting roller motor 200;
step three, the paper tape 10 is conveyed between a pair of cutting rollers 4 by a first paper drawing roller 21 and a second paper drawing roller 22, and the paper tape 10 is cut by a cutter on the cutting rollers 4; in the time of 15-25 degrees before and after the cutting knife 40 on the cutting cylinder 4 contacts with the cutting position of the paper tape 10, the linear speed of the peripheral surface of the cutting cylinder 4 is adjusted to be consistent with the moving speed of the paper tape 10 through the paper cutting roller motor 200, and then the rotating speed of the cutting cylinder 4 is adjusted to be consistent with the rotating speed of the printing plate cylinder through the paper cutting roller motor 200;
fourthly, the cut paper 10a is conveyed to a poking needle cylinder 7 by a conveyer belt 45, the paper 10a is pricked by a poking needle on the poking needle cylinder 5 and is brought between the poking needle cylinder 5 and a folding cylinder 6 along with the rotation of the paper 10a, and a folding knife on the poking needle cylinder 5 is matched with a clamping plate on the folding cylinder 6 to complete transverse folding, namely eight-opening folding; the rotation speed of the stamp pin cylinder 5 is adjusted to be twice the rotation speed of the plate cylinder by the main motor 100 and is kept constant; the included angles between the two sets of folding knives on the stamping needle roller 5 and the two sets of stamping needles are adjusted corresponding to the printing specifications, and the fact that the folding knives on the stamping needle roller 5 extend out of the middle position of the paper 10a is guaranteed.
The folding method of the present invention will be described below by taking an example in which the printing standard is changed from 625mm standard to 546mm standard.
In step one, since the printing length is changed from 625mm to 546mm, the outer diameter of the plate cylinder is reduced, and the transport speed of the web 10 is reduced (to 546/625 of the original speed) at the same plate cylinder rotation speed as the printing length of 625 mm. When the paper tape 10 needs to pass through the first drawing roller 21, the second drawing roller 22, and the third drawing roller 23 from printing to cutting and folding, since the outer peripheral surfaces of the first drawing roller 21, the second drawing roller 22, and the third drawing roller 23 are in constant contact with the paper tape 10, the surface linear velocity thereof must be consistent with the moving velocity of the paper tape 10. Therefore, the rotation speed of the first drawing roller 21, the second drawing roller 22 and the third drawing roller 23 is reduced by the driving of the drawing roller motor 300, so that the linear speed of the outer peripheral surface of the first drawing roller 21, the linear speed of the outer peripheral surface of the second drawing roller 22 and the linear speed of the outer peripheral surface of the third drawing roller 23 are consistent with the moving speed of the paper tape 10 with the specification of 546mm, and the paper drawing is ensured to be stable.
In the second step, since the extending position of the transverse puncher 30 on the punching cylinder 3 is related to the printing specification, namely, one rotation of the plate cylinder and one rotation of the punching cylinder 3 are performed to complete one punching, when the linear speed of the paper tape 10 is reduced to 546mm, the rotation speed of the punching cylinder 3 is still consistent with that of the plate cylinder; at the moment when the cross punch 30 punches, the peripheral surface of the punching cylinder 3 is in contact with the paper web 10, and the linear speed of the peripheral surface of the punching cylinder 3 is equal to the moving speed of the paper web 10 during this time, so as not to cause positional deviation when the paper web 10 punches. Therefore, during the period of 20 ° before and after the contact between the transverse puncher 30 on the punching cylinder 3 and the punching position of the paper tape 10, the punching cylinder 3 is decelerated to be consistent with the moving speed of the paper tape 10 by the paper cutting roller motor 200, and then is accelerated to the original rotating speed, that is, the rotating speed of the plate cylinder.
When the third step is carried out, because the extending position of the cutting knife 40 on the cutting cylinder 4 is related to the printing specification, namely the plate cylinder rotates once, the cutting cylinder 4 also rotates once, and one cutting is finished, when the linear speed of the paper tape 10 is reduced to 546mm specification, the rotating speed of the cutting cylinder 4 is still consistent with the rotating speed of the plate cylinder; at the moment when the cutter 40 cuts the paper tape 10, the outer peripheral surface of the cutting roller 4 is in contact with the paper tape 10, and the linear speed of the outer peripheral surface of the cutting roller 4 is equal to the moving speed of the paper tape 10 during this time, so as not to cause positional deviation when the paper tape 10 is cut. Therefore, during the period of 20 degrees before and after the cutting knife 40 on the cutting cylinder 4 contacts the cutting position of the paper tape 10, the cutting cylinder 4 is firstly decelerated to be consistent with the moving speed of the paper tape 10 by the paper cutting roller motor 200 and then is accelerated to be the original rotating speed, namely, the rotating speed of the printing plate cylinder.
In the fourth step, the cut paper 10a is sent to the needle cylinder 5 by the conveyer belt 45; the speed of the conveyor belt 45 is consistent with the linear speed of the outer peripheral surface of the needle cylinder 7, and the paper 10a is stably delivered. The paper 10a is pricked by the poking needle on the poking needle cylinder 7 and is carried towards the folding cylinder 6, and the eight-fold folding is completed. Since the stamp cylinder 5 is a double diameter cylinder, its rotation speed is twice that of the plate cylinder and remains unchanged. The included angle between the two folding knives and the two pricking pins on the pricking pin roller 5 is adjustable. When the length of the paper 10a is changed from 625mm to 546mm, the positions of the two folding knives are adjusted to reduce the included angle between each of the two folding knives and the poking needle positioned in front of the rotating direction, so that the middle position of the paper is extended out, and the eight-fold folding is completed. To perform the sextodecimo folding, the sheet having completed the octuple folding is carried by the folding cylinder 6 to the sextodecimo folding cylinder 7 to be subjected to the sextodecimo folding.
The rotary folding method with variable cutting specifications has the following advantages: three independent motors are adopted to respectively drive three pairs of paper drawing rolls, a punching roller, a cutting roller, a poking needle roller and a folding roller, the rotating speeds of the paper drawing rolls, the punching roller and the cutting roller can be independently adjusted according to the change of printing speed, the paper cutting and punching specification and the printing specification can be guaranteed to be matched, the position of a folding knife on the poking needle roller is adjustable, and the requirement for folding after the printing specification is changed is met.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.

Claims (4)

1. A folding method with variable cutting specification is realized by a rotary folding device, which is characterized in that the rotary folding device is provided with a triangular plate, a pair of first paper drawing rolls, a pair of punching cylinders, a pair of second paper drawing rolls, a pair of third paper drawing rolls, a pair of cutting cylinders, a conveying belt, a poking needle cylinder and a folding cylinder which are arranged in sequence according to the path of a paper tape,
the first paper drawing roller, the second paper drawing roller and the third paper drawing roller are all driven by a paper drawing roller motor;
the punching roller and the cutting roller are driven by a paper cutting roller motor;
the poking needle roller and the folding roller are driven by a main motor; the poking needle roller is a double-diameter roller, two folding knives and two poking needles are uniformly distributed on the poking needle roller, and the included angles between the two folding knives and the two poking needles can be adjusted by the two folding knives;
the folding method comprises the following steps:
the method comprises the following steps that firstly, a paper tape is led out from a position between a printing plate cylinder and an impression cylinder of a printing machine, then passes through a triangular plate to complete longitudinal first folding, and then is pulled out by a first paper pulling roll, a second paper pulling roll and a third paper pulling roll in sequence;
when the printing specification changes, namely the diameter of the printing plate cylinder changes and the rotating speed does not change, the moving speed of the paper tape changes, and the linear speed of the peripheral surface of the first paper drawing roller, the linear speed of the peripheral surface of the second paper drawing roller and the linear speed of the peripheral surface of the third paper drawing roller are adjusted to be consistent with the moving speed of the paper tape by a paper drawing roller motor;
conveying the paper tape between a pair of punching rollers by a first paper drawing roller and a second paper drawing roller, and finishing punching by a transverse puncher on the punching rollers; the rotating speed of the punching cylinder is adjusted to be consistent with that of the printing plate cylinder through the paper cutting roller motor, the linear speed of the peripheral surface of the punching cylinder is adjusted to be consistent with the moving speed of the paper tape through the paper cutting roller motor in the time of 15-25 degrees before and after the contact between a transverse puncher on the punching cylinder and the punching position of the paper tape, and then the rotating speed of the punching cylinder is adjusted to be consistent with that of the printing plate cylinder through the paper cutting roller motor;
conveying the paper tape between a pair of cutting rollers by a first paper drawing roller and a second paper drawing roller, and cutting the paper tape by a cutter on the cutting rollers; the rotating speed of the cutting cylinder is adjusted to be consistent with that of the printing plate cylinder through a paper cutting roller motor, the linear speed of the outer peripheral surface of the cutting cylinder is adjusted to be consistent with the moving speed of the paper tape through the paper cutting roller motor in the time of 15-25 degrees before and after the cutting knife on the cutting cylinder is contacted with the cutting position of the paper tape, and then the rotating speed of the cutting cylinder is adjusted to be consistent with that of the printing plate cylinder through the paper cutting roller motor;
fourthly, the cut paper is conveyed to a poking needle roller by a conveying belt, the paper is pricked by a poking needle on the poking needle roller and is driven to the position between the poking needle roller and the folding roller along with the rotation of the paper, and a folding knife on the poking needle roller is matched with a clamping plate on the folding roller to complete transverse folding, namely eight-opening folding; the rotation speed of the poking needle cylinder is adjusted to be twice of the rotation speed of the plate cylinder through a main motor and is kept unchanged; and adjusting included angles between the two sets of folding knives on the stamping needle roller and the two sets of stamping needles positioned in front of the two sets of folding knives in the rotating direction corresponding to the printing specification, so that the folding knives extend out of the middle position of the paper.
2. The variable cutoff folding method as claimed in claim 1 wherein said main motor drives said tucker cylinder sequentially through a first timing belt drive and a first gear drive, the tucker cylinder being transmitted to said folding cylinder by a driving force of the timing gear drive.
3. The variable cutoff folding method as claimed in claim 1 wherein said cutoff roller motor sequentially transmits drive forces to said punch cylinder and said cutoff cylinder through a second timing belt drive and two sets of second gear drives, respectively.
4. The method of claim 1, wherein the pinch roller motor sequentially transmits drive forces to the first pinch roller and the second pinch roller via a third timing belt drive and two sets of third gear drives, respectively, and the second pinch roller transmits drive forces to the third pinch roller via a fourth gear drive.
CN201811650337.1A 2018-12-31 2018-12-31 Rotary folding device with variable cutting specifications and folding method Active CN109572163B (en)

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Publication number Priority date Publication date Assignee Title
CN110963356B (en) * 2019-12-23 2021-01-05 高斯图文印刷系统(中国)有限公司 Switching method from 8-fold to 16-fold
CN110963354B (en) * 2019-12-23 2021-01-05 高斯图文印刷系统(中国)有限公司 Switching method from 32-fold to 24-fold
CN115782370B (en) * 2023-02-07 2023-04-28 江苏州际数码印花有限公司 Printing machine

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Publication number Priority date Publication date Assignee Title
EP0423529A2 (en) * 1989-10-18 1991-04-24 Man Miller Druckmaschinen Gmbh Flying cutter for cutting different lengths of a running web
US6019714A (en) * 1995-12-27 2000-02-01 Koenig & Bauer Aktiengesellschaft Folding apparatus with signature divider
CN1839082A (en) * 2003-12-12 2006-09-27 三菱重工业株式会社 Folder for rotary press
CN103786424A (en) * 2012-10-26 2014-05-14 株式会社东京机械制作所 Variable cutoff folding device and printer comprising variable cutoff folding device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0423529A2 (en) * 1989-10-18 1991-04-24 Man Miller Druckmaschinen Gmbh Flying cutter for cutting different lengths of a running web
US6019714A (en) * 1995-12-27 2000-02-01 Koenig & Bauer Aktiengesellschaft Folding apparatus with signature divider
CN1839082A (en) * 2003-12-12 2006-09-27 三菱重工业株式会社 Folder for rotary press
CN103786424A (en) * 2012-10-26 2014-05-14 株式会社东京机械制作所 Variable cutoff folding device and printer comprising variable cutoff folding device

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