CN110509600B - Production process for realizing processing of crease line in height direction of corrugated case on printing machine - Google Patents

Production process for realizing processing of crease line in height direction of corrugated case on printing machine Download PDF

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Publication number
CN110509600B
CN110509600B CN201910791863.8A CN201910791863A CN110509600B CN 110509600 B CN110509600 B CN 110509600B CN 201910791863 A CN201910791863 A CN 201910791863A CN 110509600 B CN110509600 B CN 110509600B
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China
Prior art keywords
printing
corrugated
pressing
line
printing machine
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CN201910791863.8A
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CN110509600A (en
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张惠忠
卢思满
刘杨
刘腾腾
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TAT SENG PACKAGING (SUZHOU) CO Ltd
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TAT SENG PACKAGING (SUZHOU) CO Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20—Cutting sheets or blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20—Cutting sheets or blanks
    • B31B50/22—Notching; Trimming edges of flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring
    • B31B50/252—Surface scoring using presses or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/88—Printing; Embossing

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  • Making Paper Articles (AREA)

Abstract

The invention discloses a production process for realizing the processing of a crease line of a corrugated case in the height direction on a printing machine, and relates to the technical field of corrugated case production. The key points of the technical scheme are as follows: manufacturing a pressing strip for pressing the high-degree embossing line, and fixing the pressing strip on a printing roller of the last printing part of the printing machine; processing the corrugated board on a corrugating production line and forming a single pair of pressing lines in the horizontal height direction on the inner layer of the corrugated board; printing, long and wide crease lines, high crease lines, slotting, corner cutting and die cutting are carried out on the corrugated board by a printing machine. The two pressing strips on the printing roller are arranged and typeset according to the box height of the corrugated case, and each pressing strip comprises two pressing plates which are symmetrically arranged. The press strip is arranged on the plate cylinder of the printing machine, so that the high crease line of the corrugated case is pressed on the printing machine, the quality and the production efficiency of the corrugated case for full-page printing are improved, and the consumption of manpower and material resources is reduced.

Description

Production process for realizing processing of crease line in height direction of corrugated case on printing machine
Technical Field
The invention relates to the technical field of corrugated carton production, in particular to a production process for realizing the processing of a crease line of a corrugated carton in the height direction on a printing machine.
Background
As shown in fig. 1, a conventional corrugated carton is produced in a process of processing two transverse crease lines 1 in a corrugated cardboard height direction on a corrugated production line (hereinafter, this processing is referred to as a height crease line, each transverse crease line 1 includes two parallel transverse press lines), and then the corrugated cardboard with the height crease lines is fed into a printing machine to print, form, cut and die cut corrugated cardboard, and form a long and a wide crease line (i.e., a press line of a vertical crease line 2). And finally, gluing/nailing the box to obtain the formed corrugated case. For example:
chinese patent publication No. CN108394172A discloses a corrugated board printing production line with environmental protection and energy saving functions, which comprises a frame, and a paper feeding mechanism, a printing mechanism, a slotting mechanism, a die cutting mechanism and an automatic paper folding machine are sequentially arranged on the frame along the conveying direction of corrugated boards, wherein the corrugated boards fed into the printing mechanism by the paper feeding mechanism are boards with high creasing lines. The printing mechanism comprises a plurality of printing parts, each printing part comprises an ink barrel, a printing plate cylinder, an anilox roller, an air bag type scraper and an ink fountain, the printing plate cylinder is used for printing the corrugated board, the outer side wall of the printing plate cylinder is wrapped with a flexible printing plate, the anilox roller is used for transferring ink, the air bag type scraper is used for scraping the ink on the anilox roller, the ink fountain is positioned below the anilox roller and the air bag type scraper, the printing plate cylinder and the anilox roller are rotatably connected to the rack, the printing plate cylinder is pressed against the corrugated board, the anilox; the slotting mechanism comprises a slotting part and a paper carrying wheel arranged in the slotting part, and the paper carrying wheel is used for feeding the corrugated board printed by the printing mechanism into the slotting part for slotting; the die cutting mechanism is used for cutting the corrugated board slotted by the slotting mechanism; the automatic paper stacking machine is used for stacking the corrugated boards cut by the die cutting mechanism.
However, when printing is required also at the two transverse crease lines 1 of the corrugated carton, for example, full-page printing or ribbon printing, in order to prevent white leakage at the two transverse crease lines 1, it is necessary to adopt another production method different from the above-described technical solution. At present, in the carton industry, there are two main methods adopted for the situation that the transverse crease line 1 of the corrugated carton is printed.
The first one is: the corrugated board production line adopts a line pressing mode in a single-pair-flat height direction, and a printer only prints, slots and cuts corners; the single-pair flat corrugated board has the advantages that the inner layer is a single line, the outer layer is not subjected to line pressing of the transverse crease line 1 and is used for printing; when the subsequent carton is formed, the single line of the inner layer of the corrugated board is used for forming the carton and the rocking cover.
The second method is as follows: the corrugated board production line is not provided with a high crease line, and after printing, long and wide crease lines, slotting, corner cutting and die cutting are carried out by a printer, two transverse crease lines 1 are manually pressed by a paper dividing and creasing machine.
However, the above prior art solutions have the following drawbacks: the first mode of only suppressing a single line in corrugated container board nexine is unfavorable for corrugated container box's shaping, when the rocking cover that buckles made the carton shaping, appeared rocking cover shaping edge neat pleasing to the eye phenomenon inadequately easily, and this kind of phenomenon is especially prominent in high gram weight material. For the second method, a process is added for corrugated carton processing, and the problem of secondary positioning is caused, so that the production efficiency is influenced, and the consumption of manpower and material resources is large.
Disclosure of Invention
The invention aims to provide a production process for realizing the processing of the crease line of the corrugated case in the height direction on a printing machine, which has the advantages of improving the quality and the production efficiency of the corrugated case for full-page printing and reducing the consumption of manpower and material resources.
The above object of the present invention is achieved by the following technical solutions:
a production process for realizing the processing of the crease line of the corrugated case in the height direction on a printing machine comprises the following steps:
s100, manufacturing a batten for carrying out high-degree embossing line, and fixing the batten on a printing roller of the last printing part of the printing machine;
s200, processing the corrugated board on a corrugating production line and forming a single pair of pressing lines in the horizontal height direction on the inner layer of the corrugated board;
s300, printing, height creasing lines, length and width creasing lines, slotting, corner cutting and die cutting are carried out on the corrugated board obtained in the step S200 through a printer;
in step S100, the pressing strips are provided with two pressing strips and are arranged according to the box height of the corrugated carton, each pressing strip includes two pressing plates which are symmetrically arranged, and the two pressing plates correspond to two transverse pressing lines corresponding to the transverse pressing lines respectively.
Through adopting above-mentioned technical scheme, through installing the layering on the plate cylinder of printing machine, realized on the printing machine to the suppression of the high crease line of corrugated box, do not need the artifical line ball of reuse paper dividing line press, improved the quality and the production efficiency of the corrugated box of full version printing, reduced the consumption of manpower, material resources, reduced the operation cost of enterprise, improved the utilization ratio of enterprise's resource.
The invention is further configured to: in step S100, before the pressing bar is fixed on the printing cylinder of the last printing portion of the printing machine, the pressing bar is typeset according to the box height of the corrugated carton and the principle that two pressing plates of the pressing bar are coordinated with the corresponding single line on the inner layer of the corrugated board.
By adopting the technical scheme, the pressing strip is fixed on the printing roller of the last printing part of the printing machine, so that the printing of the previous printing part is not affected, and the pressing strip is suitable for the condition that the high-height pressing line of the corrugated case has printing. In addition, the two line pressing plates and the corresponding single lines on the inner layer of the corrugated board are coordinated and centered, so that the two pressed transverse crease lines are symmetrical about the single lines on the inner layer of the corrugated board, and the bending of the rocking cover and the forming of the carton are facilitated.
The invention is further configured to: in step S300, before the corrugated cardboard enters the printing machine, the paper feeding gap of the paper biting wheel in the next printing part of the printing machine is adjusted to be smaller than the paper feeding gap of the paper biting wheel in the previous printing part by 0.8mm-1 mm.
By adopting the technical scheme, in the printing process, the printing rollers of the printing parts can apply an extrusion force to the corrugated board, so that the corrugated board is thinner and thinner, the paper feed gap of the paper biting wheel in the later printing part is adjusted to be 0.8mm-1mm smaller than that of the paper feed gap of the paper biting wheel in the previous printing part, the corrugated board can be effectively prevented from deviating in the conveying and printing processes, and the position of the transverse crease line pressed by the corrugated board in the last printing part is ensured to be accurate and not to deviate.
The invention is further configured to: in step S100, after the batten is fixed to the printing cylinder of the last printing portion of the printing machine, the printing pressure of the last printing portion of the printing machine is adjusted according to the flute shape of the corrugated cardboard, and the distance between the batten and the pressure roller below the printing cylinder is 1 mm.
Through adopting above-mentioned technical scheme, assurance layering that can be better does not contact with the pressure roller of printing cylinder below, has guaranteed the stability of layering suppression line ball.
The invention is further configured to: in step S300, before the corrugated cardboard enters the printing machine, the feeding gap of the paper carrying wheel in the grooved part of the printing machine is adjusted according to the flute shape of the corrugated cardboard to be 0.25mm-0.35mm smaller than the thickness of the corrugated cardboard.
Through adopting above-mentioned technical scheme, can bite corrugated container board tightly, do not influence corrugated container board's fluting, ensure that the fluting does not run.
The invention is further configured to: the line pressing plate is triangular, the bottom surface of the line pressing plate is connected with the printing roller, and the edge of the line pressing plate, which is opposite to the bottom surface of the line pressing plate, is a line pressing part;
wherein, the line ball portion of line ball board is the circular-arc that the diameter is 1mm, the edges and corners department of layering all is the fillet form.
Through adopting above-mentioned technical scheme, set up line ball portion into the diameter for 1mm circular-arc for line ball portion is smooth, can avoid the layering to appear the facial tissue phenomenon of bursting when the line ball to corrugated container board. In addition, the edges and corners of the pressing strips are rounded, so that the typesetting personnel are prevented from being injured due to the sharpness of the edges and corners of the pressing strips when the flexible printing plate is installed, and the safety is improved.
The invention is further configured to: the pressing strip also comprises a connecting sheet connected between the two pressing line plates, and the connecting sheet is 1mm in thickness and is connected with the printing roller; the distance between the two wire pressing parts of the pressing strip is 13.5-14.5mm, and the height of the wire pressing plate is 6-7 mm.
By adopting the technical scheme, the press strip is conveniently installed on the flexible printing plate of the printing roller, and the two press strip plates are connected by the connecting sheet with the thickness of 1mm, so that the structural strength of the press strip is improved, and the complete symmetry of the press strip structure is ensured.
The invention is further configured to: two the line ball board is that two lateral walls that set up in opposite directions all incline to set up and be the obtuse angle with the contained angle between the connection piece, be the circular arc transition between the top surface of connection piece and the line ball board.
By adopting the technical scheme, the structural strength of the pressing strip is improved, and the pressing line part is not easy to damage when being in contact with the paperboard and stressed.
The invention is further configured to: the printing cylinder comprises a printing roller and a flexible printing plate coated on the outer side wall of the printing roller, and the pressing strip is bonded on the flexible printing plate through a double-sided adhesive tape; wherein the double-sided adhesive tape is nylon cloth-based double-sided adhesive tape.
By adopting the technical scheme, the pressing strip can be firmly bonded on the flexible printing plate.
The invention is further configured to: sponge strips are arranged on the outer side wall of the flexible printing plate and positioned at two ends of the pressing strip, and the sponge strips are arranged along the circumferential direction of the printing roller; the length of the sponge strip along the circumferential direction of the printing cylinder is greater than or equal to the distance between the two pressing strips along the circumferential direction of the printing cylinder.
By adopting the technical scheme, the sponge strips are soft and have a buffering effect, so that the paperboard can be well pressed, the flattening of the paperboard is not warped, and the pressing of the crease lines on the corrugated board is facilitated.
In conclusion, the beneficial technical effects of the invention are as follows:
1. by adopting the technical scheme that the pressing strips with the two symmetrically arranged line pressing plates are arranged on the printing roller of the last printing part of the printing machine, the quality and the production efficiency of the full-page printed corrugated case are improved, and the consumption of manpower and material resources is reduced;
2. the accuracy of the high indentation line is improved by setting the paper feed gap of the paper-biting wheel in the next printing part to be 0.8mm-1mm smaller than that of the paper-biting wheel in the previous printing part and adjusting the distance between the pressing bar and the pressure roller below the printing roller to be 1 mm;
3. through the arrangement of the connecting sheet, the nylon cloth-based double-faced adhesive tape and the sponge strips, the corrugated board is prevented from warping and deviating in position, and the stability of pressing the pressing lines by the pressing strips is improved.
Drawings
Fig. 1 is a schematic structural view of a corrugated cardboard shown in the background of the present invention;
fig. 2 is a schematic structural diagram illustrating a production process for implementing a corrugated carton height direction creasing line processing on a printing machine according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a printer configuration according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a printing roll according to an embodiment of the present invention;
FIG. 5 is a schematic view of another printing roll configuration shown in an embodiment of the present invention;
FIG. 6 is a schematic diagram of a flexographic plate according to an embodiment of the present invention;
FIG. 7 is an enlarged view of portion A of FIG. 6;
FIG. 8 is a schematic view of a bead construction according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram illustrating a positional relationship between a printing cylinder and a nip and pressure roller in a printing section according to an embodiment of the present invention;
FIG. 10 is a schematic view of a printing unit according to an embodiment of the present invention, showing the positional relationship between a printing cylinder and a paper feeding roller and a vacuum suction box;
fig. 11 is a schematic structural diagram for showing a positional relationship between the paper carrying wheel and the upper and lower slitting knives in the slitting section according to the embodiment of the present invention.
In the figure, 1, transverse embossing line; 2. a vertical indentation line; 3. layering; 31. a wire pressing plate; 32. a wire pressing part; 33. connecting sheets; 4. a printing section; 41. a printing cylinder; 42. a paper biting wheel; 43. a pressure roller; 44. a printing roller; 441. a first connecting groove; 442. a second connecting groove; 45. a flexographic plate; 46. a flexible sheet base; 47. a connecting plate; 48. a vacuum adsorption tank; 49. a paper feeding wheel; 5. grooving part; 51. a paper carrying wheel; 52. arranging a slotting cutter; 53. a slotting cutter is arranged; 6. double-sided adhesive tape; 7. a sponge strip; 8. a paper feeding mechanism; 9. and a die cutting mechanism.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Examples
Referring to fig. 2 and 3, the production process for realizing the processing of the crease line in the height direction of the corrugated case on the printing machine disclosed by the invention comprises the following steps:
s100, making a bead 3 (see fig. 4) for high-level embossing, and fixing the bead 3 to the printing cylinder 41 of the last printing unit 4 of the printing machine; the pressing strips 3 are provided with two pressing strips which are all typeset according to the box height of the corrugated case, each pressing strip 3 comprises two pressing line plates 31 which are symmetrically arranged, and the two pressing line plates 31 correspond to the two transverse pressing lines corresponding to the transverse pressing lines 1 respectively;
s200, processing the corrugated board on a corrugating production line and forming a single pair of pressing lines in the horizontal height direction on the inner layer of the corrugated board;
and S300, printing, height creasing lines, length and width creasing lines, slotting, corner cutting and die cutting are carried out on the corrugated board obtained in the step S200 through a printer.
Specifically, paper feeding mechanism 8, printing portion 4, fluting portion 5 and die-cutting mechanism 9 of printing machine set gradually along corrugated board direction of delivery, and paper feeding mechanism 8 is used for carrying corrugated container board, and printing portion 4 is provided with four and is used for printing the corrugated container board that paper feeding mechanism 8 sent into, and fluting portion 5 is used for slotting the corrugated container board after printing portion 4 prints, and die-cutting mechanism 9 is used for cutting the corrugated container board after fluting portion 5 fluting. In this embodiment, the batten 3 is fixed to the print cylinder 41 of the fourth printing section 4 of the printing press and the fourth printing section 4 is thus used to score the corrugated cardboard sheet to a high degree without printing. The paper feeding mechanism 8, the printing portion 4, the slotting portion 5 and the die cutting mechanism 9 of the printing machine are all prior art and are not described in detail herein.
Referring to fig. 3 and 4, the printing cylinder 41 of the fourth printing section 4 includes a printing roller 44 and a flexographic plate 45 wrapped on an outer sidewall of the printing roller 44, the beads 3 are symmetrically arranged in two, and both beads 3 are arranged on the flexographic plate 45 along an axial direction of the printing roller 44.
Referring to fig. 4 and 6, two sponge strips 7 are disposed on the outer side wall of the flexible printing plate 45 and at two ends of the press strip 3, the sponge strips 7 are disposed along the circumferential direction of the printing cylinder 41, and the length of the sponge strips 7 along the circumferential direction of the printing cylinder 41 is greater than or equal to the distance between the two press strips 3 along the circumferential direction of the printing cylinder 41. The flexible printing plate 45 comprises a flexible sheet base 46, connecting plates 47 arranged at two ends of the width direction of the flexible sheet base 46 and graphic protrusions for printing graphics arranged on one side surface of the flexible sheet base 46, in the embodiment, the press strips 3 are arranged along the length direction of the connecting plates 47, and the graphic protrusions are not arranged on the flexible sheet base 46 in the fourth printing part 4.
Referring to fig. 5 and 6, the outer sidewall of the printing roller 44 is provided with a first coupling groove 441 and a second coupling groove 442, and the first coupling groove 441 and the second coupling groove 442 are both disposed in the axial direction of the printing roller 44. When the flexographic printing plate 45 is attached to the printing roller 44, the flexographic printing plate 45 is wrapped around the printing roller 44, and the two connection plates 47 are respectively clamped in the first connection groove 441 and the second connection groove 442 (see fig. 4).
Referring to fig. 6 and 7, the tension plate 31 has a triangular shape, and the edge of the tension plate 31 opposite to the bottom surface thereof is a tension part 32. The pressing strip 3 further comprises a connecting piece 33 connected between the two pressing strip plates 31, the thickness of the connecting piece 33 is 1mm, the bottom surface of the connecting piece 33 is flush with the bottom surface of the pressing strip plates 31, and the connecting piece 33 and the pressing strip plates 31 are integrally formed. The pressing strip 3 and the sponge strip 7 are both bonded on the flexible film base 46 through a double-sided adhesive tape 6, and in the embodiment, the double-sided adhesive tape 6 is a nylon cloth-based double-sided adhesive tape.
Referring to fig. 8, line ball portion 32 of line ball board 31 is that the diameter is 1mm circular-arc, and the edges and corners department of layering 3 all is the fillet form, and eight edges and corners of layering 3 have all been chamfered the fillet in this embodiment promptly. The distance a between the two crimping portions 32 of the crimping bar 3 is 13.5-14.5mm, in this embodiment a is 14 mm; the length b of the bottom surface of the wire pressing plate 31 is 8.5 mm; the height c of the tension bar 31 is 6-7mm, and in this embodiment c is 6.5 mm. It should be noted that the two wire pressing plates 31 are arranged in opposite directions, two side walls of the two wire pressing plates are both arranged in an inclined manner, and an included angle between each side wall and the connecting piece 33 is an obtuse angle, the obtuse angle is 105 degrees in this embodiment, and the top surface of the connecting piece 33 and the wire pressing plates 31 are also in arc transition.
Referring to fig. 2 and 9, two sets of paper-gripping mechanisms are disposed in the printing portion 4, the two sets of paper-gripping mechanisms are respectively located on two radial sides of the printing cylinder 41, each set of paper-gripping mechanisms includes two paper-gripping wheels 42 disposed vertically symmetrically, and a paper feeding gap is formed between the two paper-gripping wheels 42. In step S100, before fixing the batten 3 on the printing cylinder 41 of the last printing portion 4 of the printing machine, typesetting the batten 3 according to the box height of the corrugated case and the principle that two wire pressing plates 31 of the batten 3 coordinate with the corresponding single lines on the inner layer of the corrugated board and fixing the batten 3 on the flexible sheet base 46; after the flexible sheet base 46 on which the bead 3 is mounted is fixed to the printing cylinder 41 of the last printing portion 4 of the printing machine, the printing pressure of the last printing portion 4 of the printing machine is adjusted according to the flute shape of the corrugated cardboard sheet so that the distance between the bead 3 and the pressure roller 43 below the printing cylinder 41 is 1 mm. In step S300, before the corrugated cardboard sheet enters the printing machine, the paper feeding gap of the paper biting wheel 42 in the next printing portion 4 of the printing machine is adjusted to be smaller than the paper feeding gap of the paper biting wheel 42 in the previous printing portion 4 by 0.8mm to 1mm, preferably 1mm in the embodiment.
It should be noted that the paper-nipping mechanism inside the printing portion 4 may also adopt a vacuum adsorption mode, referring to fig. 10, a vacuum adsorption box is arranged below the printing cylinder 41, the pressure roller 43 is rotatably connected in the vacuum adsorption box, and the upper part of the pressure roller 43 extends out of the vacuum adsorption box; a paper feeding wheel 49 is rotatably connected to both sides of the vacuum suction box in the radial direction of the pressure roller 43, and is used for supporting and conveying the corrugated board forward when the vacuum suction box sucks the corrugated board.
Referring to fig. 2 and 11, two groups of slotting mechanisms and three groups of paper carrying mechanisms are sequentially arranged in the slotting part 5 along the conveying direction of the corrugated board, and the paper carrying mechanisms and the slotting mechanisms are arranged at intervals, namely, one group of slotting mechanisms is arranged between two adjacent groups of paper carrying mechanisms. Each group of slotting mechanism comprises an upper slotting cutter 52 and a lower slotting cutter 53 which are sequentially arranged from top to bottom, each group of paper carrying mechanism comprises two paper carrying wheels 51 which are sequentially arranged from top to bottom, and a paper feeding gap is formed between the two paper carrying wheels 51. In step S300, before the corrugated cardboard enters the printing machine, the feeding gap of the feeding wheel 51 in the slot portion 5 of the printing machine is adjusted to be 0.25mm-0.35mm smaller than the thickness of the corrugated cardboard according to the flute shape of the corrugated cardboard, and in this embodiment, the feeding gap of the feeding wheel 51 is adjusted to be 0.3 mm smaller than the thickness of the corrugated cardboard.
The implementation principle of the above embodiment is as follows:
after the two beads 3 are laid out and fixed on the flexographic printing plate 45 according to the height of the corrugated box, the flexographic printing plate 45 is wrapped and fixed on the printing cylinder 41 of the fourth printing section 4. The printing pressure of the fourth printing section 4 is then adjusted to a distance of 1mm between the bead 3 and the pressure roller 43 below the printing cylinder 41, and the feed gap of the nip wheel 42 in the following printing section 4 of the printing press is adjusted to be 1mm smaller than the feed gap of the nip wheel 42 in the preceding printing section 4. After the adjustment, the corrugated board can be printed, highly creased lines, long and wide creased lines, slotted, corner cut and die cut by a printer, so that the production efficiency is improved, and the consumption of manpower and material resources is reduced.
In the process of typesetting the batten 3, the edges and corners of the batten 3 are all in a round angle shape, so that no harm is caused to typesetters. When the printing machine carries out high-degree creasing line, the creasing part 32 is in an arc shape, so that the phenomenon of corrugated board surface paper bursting can not occur, and the quality of the corrugated case of full-page printing is ensured.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (8)

1. A production process for realizing the processing of the crease line of the corrugated case in the height direction on a printing machine is characterized by comprising the following steps:
s100, manufacturing a batten (3) for carrying out high-degree creasing line, and fixing the batten (3) on a printing roller (41) of the last printing part (4) of the printing machine; before the batten (3) is fixed on a printing roller (41) of the last printing part (4) of the printing machine, the batten (3) is typeset according to the box height of the corrugated case and the principle that two wire pressing plates (31) of the batten (3) are coordinated with corresponding single lines on the inner layer of the corrugated board to be centered;
s200, processing the corrugated board on a corrugating production line and forming a single pair of pressing lines in the horizontal height direction on the inner layer of the corrugated board;
s300, printing, height creasing lines, length and width creasing lines, slotting, corner cutting and die cutting are carried out on the corrugated board obtained in the step S200 through a printer;
in the step S100, the pressing strips (3) are provided with two strips and are typeset according to the box height of the corrugated case, each pressing strip (3) comprises two line pressing plates (31) which are symmetrically arranged, and the two line pressing plates (31) correspond to two transverse pressing lines corresponding to the transverse creasing lines (1) respectively;
the line pressing plate (31) is triangular, the bottom surface of the line pressing plate (31) is connected with the printing roller (41), and the edge, opposite to the bottom surface, of the line pressing plate (31) is a line pressing part (32); line ball portion (32) of line ball board (31) are that the diameter is 1mm circular-arc, the edges and corners department of layering (3) all is the fillet form.
2. The manufacturing process for implementing the corrugated carton height direction crease line processing on the printing machine according to the claim 1, characterized in that, in the step S300, before the corrugated cardboard enters the printing machine, the paper feeding gap of the paper biting wheel (42) in the next printing part (4) of the printing machine is adjusted to be 0.8mm-1mm smaller than the paper feeding gap of the paper biting wheel (42) in the previous printing part (4).
3. The manufacturing process for implementing the corrugated carton height direction crease line processing on the printing machine according to the claim 1 is characterized in that, in the step S100, after fixing the batten (3) on the printing cylinder (41) of the last printing part (4) of the printing machine, the printing pressure of the last printing part (4) of the printing machine is adjusted according to the flute shape of the corrugated cardboard and the distance between the batten (3) and the pressure roller (43) under the printing cylinder (41) is 1 mm.
4. The manufacturing process of the corrugated cardboard box with the crease line processing in the height direction on the printing machine as claimed in claim 1, wherein in step S300, the feeding gap of the tape wheel (51) in the slot part (5) of the printing machine is adjusted according to the flute shape of the corrugated cardboard box before the corrugated cardboard box enters the printing machine, and is 0.25mm-0.35mm smaller than the thickness of the corrugated cardboard box.
5. The production process for realizing the height direction creasing line of corrugated cartons on a printing machine as claimed in claim 1, characterised in that said batten (3) further comprises a connecting piece (33) connected between two creasing plates (31), said connecting piece (33) having a thickness of 1mm and being connected to a printing cylinder (41); the distance between the two wire pressing parts (32) of the pressing strip (3) is 13.5-14.5mm, and the height of the wire pressing plate (31) is 6-7 mm.
6. The production process for realizing the processing of the crease line in the height direction of the corrugated case on the printing machine as claimed in claim 5 is characterized in that two opposite side walls of the two line pressing plates (31) are obliquely arranged and the included angle between the two line pressing plates and the connecting sheet (33) is an obtuse angle, and the top surface of the connecting sheet (33) and the line pressing plates (31) form an arc transition.
7. The production process for realizing the corrugated carton height direction crease line processing on the printing machine according to the claim 5 is characterized in that the printing cylinder (41) comprises a printing roller (44) and a flexible printing plate (45) coated on the outer side wall of the printing roller (44), the batten (3) is bonded on the flexible printing plate (45) through a double-sided adhesive tape (6); wherein the double-sided adhesive tape (6) is nylon cloth-based double-sided adhesive tape.
8. The production process for realizing the corrugated carton height direction indentation line processing on the printing machine as claimed in claim 7, wherein sponge strips (7) are arranged on the outer side wall of the flexible printing plate (45) and at the two ends of the pressing strip (3), and the sponge strips (7) are arranged along the circumferential direction of the printing cylinder (41); the length of the sponge strip (7) along the circumferential direction of the printing cylinder (41) is greater than or equal to the distance between the two pressing strips (3) along the circumferential direction of the printing cylinder (41).
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