CN215551759U

CN215551759U - Full-width web-fed printing press

Info

Publication number: CN215551759U
Application number: CN202121403224.9U
Authority: CN
Inventors: 李文欣; 朱月玲
Original assignee: Shanghai Xunfang Digital Technology Co ltd
Current assignee: Shanghai Xunfang Digital Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-01-18
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a full-width web printing machine, which aims to solve the technical problems of difficult speed increase, serious waste of paper edges, complex configuration of subsequent equipment and high operation cost of the conventional folio-width folding machine. The utility model relates to a full-breadth web-fed printing machine, which comprises a web feeding unit, a printing unit and a web folding unit, wherein the longitudinal printing size of the printing unit is matched with the longitudinal size of full-width paper, the web folding unit comprises a triangular plate, a paper tightening roller, a cutting roller, a first folding roller and a second folding roller, the paper tightening roller is arranged below the triangular plate, and the circumferences of the cutting roller, the first folding roller and the second folding roller are equal to the longitudinal length of the full-width paper. The utility model has the beneficial effects that: the folding efficiency is improved, the waste of paper edges is reduced, and the burden of subsequent gathering is reduced.

Description

Full-width web-fed printing press

Technical Field

The utility model relates to the technical field of web printing machines, in particular to a full-format web printing machine.

Background

The web press comprises a web feeding unit, a printing unit and a web folding unit, has the advantages of high speed and high efficiency, is widely applied to the fields of books, news and commercial printing, particularly can be used for connecting a folding process, and is almost produced by the web press in large batches. The current web printing machines print and fold open web and can output 8-opening, 16-opening and 32-opening duplex signatures, but the printing and folding mode has several problems:

1. the maximum speed of the current paper roll book printing folding machine is about 35000 sheets/hour, and the speed is difficult to increase due to the limitation of mechanical structure performance;

2. the cutting roller or the page conveying roller of the roll paper folding machine needs a gripping needle to grip paper for transferring and handing over, the edge of the gripped paper needs about 5mm, the part of paper is useless for products, and the paper needs to be cut and thrown away when the finished products are finally obtained. If the standard normal split paper width is 787x546mm, and the cutting width of the domestic book and periodical web printing machine is 550mm, the extra 4mm (550 and 546) edges are the edges gripped by the gripper pins and are wasted in cutting. The diameters of the cylinders of the printing unit and the folding machine are designed according to the circumference of 550 mm. It can be seen that printing and folding the paper with the split width means that each paper with the split width needs to be cut and thrown away by a holding needle paper edge, the waste of the book and periodical products produced in large batch is huge, the paper is produced by trees, and the influence on environmental damage is also great;

3. the number of the signatures after folding the split-width paper is large, the split-width paper is taken as a 16-division signature as an example, each signature has 8 pieces of 16 pieces of split-width paper, if the page number of the book is large, the number of the signatures is large, for example, a book with 480 pages needs 30 16 pieces of split-width paper, in a subsequent page matching and gluing link, a machine needs to be provided with a large number of page matching machine sets, and difficulty and cost are increased for machine type selection and production operation of enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model provides a full-width web-fed printing machine, which solves the technical problems of difficult speed increase, serious waste of paper edges, complex configuration of subsequent equipment and high operation cost of the conventional split-width printing machine.

In order to solve the problems, the utility model adopts the following technical scheme:

a full-width web printing press is provided, which comprises a web feeding unit, a printing unit and a web folding unit, the longitudinal printing size of the printing unit is matched with the longitudinal size of the full paper, the roll paper folding unit comprises a triangular plate, a paper tightening roller, a cutting roller, a first folding roller and a second folding roller, the triangular plate is used for realizing longitudinal folding of the roll paper, the paper tightening roller is arranged below the triangular plate, used for compressing the folded roll paper and conveying the folded roll paper backwards, the cutting roller is provided with a front folding knife, a cutting knife and a pricking pin, a first clamping plate corresponding to the front folding knife is arranged on the first folding roller, a middle folding knife is arranged on the first folding roller, and the second folding roller is provided with a second clamping plate corresponding to the middle folding knife, and the circumferences of the cutting roller, the first folding roller and the second folding roller are equal to the longitudinal length of the whole paper. The printing unit includes, but is not limited to, an offset printing method, an inkjet printing method, and the like.

Preferably, a transverse punching knife roller is arranged below the triangular plate, and a punching knife parallel to the central axis is arranged on the surface of the transverse punching knife roller and used for transversely punching four and eight paper holes on the roll paper.

Preferably, the paper pressing wheel is arranged at the left edge position and the right edge position of the paper tightening roller, and the paper cutting wheel vertical to the central axis is arranged at the middle position of the paper tightening roller and used for cutting saw-tooth holes corresponding to the sixteen broken lines in the middle of the paper tape.

Preferably, the diameter of the transverse punching knife roller is the same as the diameters of the cutting roller, the first folding roller and the second folding roller.

Preferably, an upper conveying belt is arranged above the second folding roller, a sixteenmo folding knife is arranged above the upper conveying belt, a roller cone is arranged below the upper conveying belt, and a lower conveying belt is arranged below the roller cone.

Compared with the prior art, the utility model has the beneficial technical effects that:

1. the diameter of the roller of the full-width paper printing folding is designed according to about 2 times of the diameter of the roller of a split-width web printing press, 1 printing folding is equivalent to 2 printing folding of split paper, the production efficiency under the condition of the same rotating speed is 2 times, the maximum rotating speed cannot be obviously reduced by increasing the diameter of the roller, even if the maximum printing folding speed is 30000 folding/hour, the maximum printing folding speed is equivalent to 60000 folding/hour of the original split-width printing press, and the speed and the efficiency are greatly improved.

2. The utility model only needs 1 holding edge, which is equivalent to saving 1 holding edge for every 2 split paper in the original process, and the utility model has great saving for book and periodical products produced in large scale and great benefit for environmental protection.

3. Compared with the signatures folded by opposite opening, the number of the signatures folded by full paper is reduced by half, the 16-opening signatures after folding are taken as an example, the 16-opening signatures folded by full paper have 16 pages with 32 pages of 16 opening, books and periodicals with 480 pages need 15 16-opening signatures, in the subsequent page assembly gluing link, a small number of page assembly machine sets need to be configured on a machine, the machine is easy to select, and the production and operation cost is reduced greatly.

Drawings

Fig. 1 is a schematic representation of the longitudinal dimension of a sheet in a full-width and a half-width web press of the present invention.

Fig. 2 is a schematic view of the overall structure of the web printing press of the present invention.

Fig. 3 is a schematic view of the full web folding machine of the present invention.

Fig. 4 is a full-page printing folding process diagram of the present invention.

Fig. 5 is a prior art process diagram of a split-web print folding process.

In the figure, a roll paper feeder 100, a gripper paper edge 101, a duplex printing unit 200, a roll paper folding machine 300, a paper feeding roller 1, a paper pressing wheel 2, a paper cutter wheel 3, a triangular plate 4, a paper guide roller 5, a transverse punching cutter roller cylinder 6, a cutter padding roller cylinder 7, a left paper tightening roller 8, a right paper tightening roller 9, a cutting roller cylinder 10, a first folding roller cylinder 11, a second folding roller cylinder 12, an upper conveying belt 13, a sixteenmo folding cutter 14, a folding roller 15, a festoon roller cylinder 16 and a lower conveying belt 17.

Detailed Description

The following examples are intended to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way.

The unit modules, components, structures, mechanisms, sensors, and other devices referred to in the following examples are all conventional commercially available products unless otherwise specified.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present application. References to "first," "second," etc. in this application are intended to distinguish between similar items and not necessarily to describe a particular order or sequence.

Example 1: a full-width web printing press, see fig. 2, in which 100 is a web feeder, 200 is a duplex printing unit, 300 is a web folder, and 2 duplex printing units 200 are illustrated, and in practice, 1 printing unit, or 2 or 4 printing units may be provided according to the actual needs of the printing plant. The printing unit adopts a printing mode of large longitudinal size and small transverse size, namely the longitudinal size is the long side of the full paper, and the transverse size is the short side of the full paper. The printed web is passed back into the web folder 300.

Structure of web folding machine 300 referring to fig. 3, compared with the three-roll diameter 1 of the conventional three-roll folding machine: 1: 2, the three roller diameter of the design is 1: 1: 1, structure (b). Specifically, a paper feeding roller 1 is arranged above a triangular plate 4, a paper pressing wheel 2 is arranged on the left side and the right side of the paper feeding roller 1, paper is conveyed backwards under the combined action of the paper feeding roller 1 and the paper pressing wheel 2, the upper position in the middle of the paper feeding roller 1 is provided, a paper cutting wheel 3 is arranged, when the paper moves backwards, a sawtooth hole is cut in the middle of the paper tape, air is discharged when the triangular plate is folded with the paper conveniently, the triangular plate is used for longitudinally folding the paper, 5 is a pair of paper guiding rollers, a longitudinal folding function is completed by matching the triangular plate 4, 6 is a transverse punching cutter roller, holes are punched at the transverse folding line part of the signature, air discharge in the signature is facilitated, and the folding part can be flattened. Because vertical full breadth paper all need punch at horizontal broken line department when the cross-folding is quarto and eight breadth, horizontal punching roller need install with horizontal broken line corresponding position and the horizontal punching sword of quantity, the arc interval between the punching sword is the same with the longitudinal length of eight breadth. 7 for the backing knife roller section of thick bamboo, it arranges corresponding break bar to correspond the sword position of punching on it, and left side is tight paper roller 8 and right side is tight paper roller 9 and is cooperated and carry the paper backward, and tight paper roller is corresponding two sets of pressure paper wheels that the edge position was arranged about after the vertical fifty percent discount of paper, and simultaneously, the intermediate position of tight paper roller can be arranged and cut the paper cutter wheel, cuts the sawtooth hole in the middle of the paper tape after the fifty percent discount, and this sawtooth hole corresponds sixteen division broken line position, cuts the hole exhaust air when the signature needs sixteen division to fold paper. And the lower part of the cutting roller is of a three-roller structure and is respectively a cutting roller 10, a first folding roller 11 and a second folding roller 12, the cutting roller 10 is used for matching with the first folding roller 11 to complete cutting and first transverse folding of a paper tape, the printed paper tape is folded into four pages, the four pages are handed to the first folding roller 11, and a folding knife, a cutting knife and a needle pricking mechanism are arranged on the cutting roller 10. The first folding roller 11 is used for being matched with the cutting roller 10 to cut off the paper tape, the folding knife of the cutting roller 10 is matched with the clamping plate of the first folding roller 11, the paper tape to be cut is folded into a four-fold sticker, the first folding roller 11 is handed over to the second folding roller 12, and the folding knife of the first folding roller 11 is matched with the clamping plate of the second folding roller 12 to fold into an eight-fold sticker. The first folding roller 11 is provided with a folding knife, a knife pad, a folding splint, a cam for controlling the splint and other mechanisms. The second folding roller 12 is provided with a clamping plate mechanism which is matched with the first folding roller 11 to complete the folding of the eight-fold pasters, and the eight-fold pasters are conveyed to an upper conveyor belt 13 and sent to a sixteenth folding mechanism.

The working process of the three-roller folding mechanism is as follows: referring to fig. 4 and 5, after the first longitudinal folding of the paper tape on the set square 4, the paper tape is formed into a longitudinally split paper tape and enters the folding unit, and the needle on the cutting roller 10 pricks the paper tape to wind the paper tape on the cutting roller 10. When the pricking pin of the cutting roller 10 rotates by 180 degrees, the folding knife on the cutting roller just rotates to the horizontal direction to be aligned with the clamping plate on the first folding roller 11, the pricking pin on the cutting roller 10 retracts, the clamping plate on the first folding roller 11 clamps the paper tape, the first transverse folding is completed by the cooperation of the folding knife and the clamping plate, the paper tape is taken away by the first folding roller 11, when the first folding roller 11 rotates by 180 degrees, the cutting knife on the cutting roller 10 cuts the paper tape, and the quarto folding is completed. When the clamping plate of the first folding roller 11 drives the four-folded sticker to rotate to the vertical position, the folding knife on the first folding roller 11 is just aligned with the clamping plate on the second folding roller 12, at this time, the clamping plates on the first folding roller 11 are loosened, the clamping plates on the second folding roller 12 clamp the paper tape, thus, the folding knife of the first folding roller 11 and the clamping plate of the second folding roller 12 are matched with each other to complete the second transverse folding, so that the four-folded sticker is folded into the eight-folded sticker, when the clamping plate of the second folding roller 12 drives the eight-folded sticker to rotate to the vertical position, the clamping plate is opened under the action of the cam to transfer the signatures to the upper conveyor belt 13 for backward conveying, the eight-open signatures pass through a sixteenth-fold knife 14 and a pair of folding rollers 15 during backward conveying, the folding knife and the folding rollers are matched to fold the eight-open signatures into sixteenth-open signatures, and the signatures are conveyed downwards to the lower conveyor belt 17 through a pattern roller 16 to be sent out. If the product of the eight-opening signature is finally output, the sixteenth-opening folding knife 14 does not work, and the eight-opening signature product is directly output.

The circumference of the three-roller folding mechanism is the same as the length of a full-sheet paper, for example, a positive full-sheet paper sheet 1092x787mm is taken as an example, referring to fig. 1, the longitudinal cutting size of the web-fed folio printing machine is 550mm, the gripper edge 101 with the size of 4mm is included, the (546 + 4) x2=1100mm is required for printing 2 sheets of folio paper, and if printing folding is carried out according to the full-sheet paper, the longitudinal cutting size can be 546x2+4=1096mm, 4mm of gripper edge 101 can be saved for every two sheets of folio paper, and waste of the gripper edge is reduced; meanwhile, the number of the signatures can be reduced by full-page printing, so that the machine configuration of the subsequent process is facilitated, and the cost is saved.

While the present invention has been described in detail with reference to the drawings and the embodiments, those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention, and a plurality of specific embodiments are formed, which are common variation ranges of the present invention, and will not be described in detail herein.

Claims

1. A full-width web printing press comprising a web feed unit, a printing unit, a web folding unit, characterized in that: the vertical printing size of printing unit and the vertical size phase-match of full-page paper, the roll web unit of folding paper includes set-square, tight paper roll, cuts the roller, first book page roller, the second book page roller of folding, the set-square is used for realizing the vertical fifty percent discount of roll web, tight paper roll set up in the below of set-square for compress tightly the roll web after the fifty percent discount and carry backward, cut the roller and be equipped with preceding book sword, cut the sword, prick the needle, be equipped with on the first book page roller with the first splint that preceding book sword corresponds, be equipped with well book sword on the first book page roller, be equipped with on the second book page roller with the second splint that well book sword corresponds, cut the circumference that roller, first book page roller, second book page roller equals the vertical length of full-page paper.

2. Full-sheet web printing press according to claim 1, characterized in that: and a transverse punching knife roller is arranged below the triangular plate, and a punching knife parallel to the central axis is arranged on the surface of the transverse punching knife roller and used for transversely punching four and eight paper-opening holes on the roll paper.

3. Full-sheet web printing press according to claim 1, characterized in that: and paper pressing wheels are arranged at the left edge and the right edge of the paper tightening roller, and a paper cutting wheel vertical to the central axis is arranged at the middle position of the paper tightening roller and used for cutting saw tooth holes corresponding to the sixteen-fold lines in the middle of the paper tape.

4. Full-sheet web printing press according to claim 2, characterized in that: the diameter of the transverse punching knife roller is the same as the diameter of the cutting roller, the diameter of the first folding roller and the diameter of the second folding roller.

5. Full-sheet web printing press according to claim 1, characterized in that: an upper conveying belt is arranged above the second folding roller, a sixteenmo folding knife is arranged above the upper conveying belt, a roller cone is arranged below the upper conveying belt, and a lower conveying belt is arranged below the roller cone.

6. Full-sheet web printing press according to claim 1, characterized in that the printing unit is an offset printing unit or an inkjet printing unit.