JPH04351532A - Printing working machine for corrugated board - Google Patents

Abstract

PURPOSE:To shorten distances among working units, and to downsize the whole device by arranging major rolls to each feed roll and separately driving each working unit freely. CONSTITUTION:Printing-cylineder circumferential length uses a lateral passing mechanism as a reference and the direction of passage is in comformity with vertical passing size, both advantages are employed as the design mounting size of a machine first, and the position of the design of printing and the position of a working point are stored in a computer 115 according to case developing size. A control circuit is held in a console panel so as to transmit the acceleration and deceleration of the printing cylinder, to which a printing plate is installed, oven the operating circuit of an AC servo-motor in over and short sections at distances among each unit in length arithmetically operated from a signal transmitted from a mojor roll 302, and a printing working machine is operated at the speed of a feed roll. The set positions of each unit are controlled at other speed to paper passing speed among each unit and each unit is tuned.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing machine, and more particularly to a printing machine for corrugated board for processing and printing corrugated cardboard sheets.

0002

[Prior Art] In conventional longitudinal printing processing machines for corrugated board sheets, so-called printer slotters are often used, and they perform ruled line processing (also called creasing) and paper width processing (also called slitting or trimming). Also, printing is performed. In such a processing machine, the dimensions of the slotter mounting roll and the printing plate cylinder are determined depending on the size of the sheet to be processed, and they are usually quite large in diameter, with a diameter of about 800 to 1700 mm.

0003

[Problems to be Solved by the Invention] In such a conventional vertical printing processing machine, a distance between the drum and the mechanical unit, which has a large maximum circumference that matches the length of the corrugated board sheets to be passed through, is required, and the printing There was a problem in that the overall size of the processing machine became large.

0004

[Means for Solving the Problems] The present invention provides a printing processing machine by individually driving processing mechanisms such as a printing unit, a slotting unit, a cutting unit, a die cutting unit, and a slitting unit using an AC servo motor or the like. It was realized to shorten the overall dimensions of.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a conventional method for determining stationary dimensions will be explained with reference to FIGS. 1 to 11 of the attached explanatory drawings. Printing units 101, 102 in FIG.
The center point between the units 103 and 104, that is, the printing cylinder 306
and press roll 307, printing cylinder 309 and press roll 31
2. A zero point is set at each contact point between the printing cylinder 315 and the press roll 318, and between the printing cylinder 320 and the press roll 322, and the distance between the zero points and each zero point is set as the maximum dimension of the corrugated board sheet to be fed and printed. For example, if the maximum size that can be fed is 2 m, the distance from zero point to the next unit's zero point is 2 m.
To be. Further, the circumference of the printing cylinder is also 2 m.

[0006] When the dimensions are set according to the above conditions,
The printing design A5 in Figure 2 is the corrugated sheet tip line (
From a), the distance of the printing design A5 is set back from the zero point on the circumference of the printing cylinder 306, and the mounting point of the printing plate 305 is set backward;
The printing plate 311 of the next printing unit 102 is created by retracting the printing plate 311 on the printing cylinder 309 circumference from the zero point by changing the distance from the printing design A6 and the corrugated sheet tip line (a) from the zero point on the printing cylinder 309 circumference. put. Next printing unit 10
In 3, when printing the printing plate 314 at the printing design A7 position, the mounting position of the printing plate 314 is set back from the zero point on the circumference of the printing cylinder 315 so that the distance from the printing design A7 and the cardboard tip line (a) is set back. .

In the next printing unit 104, when printing the printing plate 321 at the printing plate design A8 position, the distance from the A8 printing design and the corrugated board tip line (a) is determined by the printing cylinder 320.
By retracting the mounting position of the printing plate 321 from the zero point on the circumference, printing according to the designed developed dimensions can be completed as shown in FIG. In this case, the printing plate design A4 is printed in the printing unit 101.
When is being printed, the dimensions have been determined for each unit as described above, so each unit that the corrugated board sheet has not reached is spinning idly. Notches A9, A9', A10, A10 due to the next slotting process
', A11, A11' are formed with the same dimensions in unit 107 and unit 109, and the notches A16, A
16' die-cut processing is performed by unit 110, and processing of case width long ruled lines A14, A14, A13 is performed by unit 108.
At step 116, it is set and operated with the same index dimensions as a printing press.

The standard for dimensions in the case of this stationary indexing is that the zero points are set at equal distances between the units at the maximum machining dimension, and the surface speeds of the rotating parts of each unit are operated in synchronization. All high-grade horizontal passing machines are the same. In addition, in the case of cross-feeding, there are significant restrictions on the distance that the printed corrugated cardboard sheet travels from feed roll to feed roll. For example, the distance between unit 101 and unit 102, that is, the distance from zero point to zero point, is 2.
If m is the feed roll 303, 303' in the middle
The distance between the printing cylinder 305 and the press roll 307 is 1 m, and the printing cylinder 30
5 Press roll 307 to feed rolls 308, 30
8', 1 m from the feed rolls 308, 308' to the printing cylinder 309 press roll 312, and 1 m from the printing cylinder 309 press roll 312 to the feed rolls 316, 316'. become. In the case of a cross-feeding machine, if the paper width A3 in FIG. 2 is 1 m or less, it is impossible to convey the corrugated cardboard sheet between each unit. If this paper is passed vertically in the L dimension direction in FIG. 11, it becomes possible to feed the paper, but there is a restriction on the printing cylinder circumference. This is because the maximum dimension of the trunk circumference changes to the maximum processing dimension L dimension.

In order to minimize the above-mentioned restrictions, the present invention first sets the printing cylinder circumference based on the horizontal threading mechanism and the threading direction based on the vertical threading dimension, so that the advantages of both are first considered in the design and installation of the machine. The printing design position and the position of the processing point are stored in the computer according to the case expansion dimensions, and the signal sent from the measuring roll is used to print the calculated length by the excess or deficiency of the distance between each unit. A control circuit is held on the operation panel to transmit the acceleration/deceleration of the printing cylinder on which the plate is attached to the operation circuit of the AC servo motor, and the operation is performed at the feed roll speed. At a speed different from the paper passing speed between each unit,
The setting position of each unit is controlled and synchronized.

Referring to explanatory drawings, the above steps are as follows. The unfolded dimensions of the case are the distance from the tip line (A) of the cardboard sheet to the printed design A5, the distance from the line (A) to the printed design A6, the distance from the line (A) to the design A7, and the printing from the line (A). Distance to design A8, from line (A) to notch A9, A9
Distance from line (A) to the slotting process of notches A10, A10', Distance from line (A) to the slotting process of notches A11, A11', Line (I) to the slotting process of notches A11, A11' ) to ruled line A12
Distance from line (A) to processing of ruled line A13, Distance from line (A) to processing of ruled line A14, Distance from line (A) to processing of ruled line A15,
The distance from the line (A) to the die-cutting process of the notches A16, A16' and the distance from the line (A) to the cutting process of the cutting part A17 are all stored in advance in the computer.

[0011] Calculate the numerical values for each unit and model, add the steps, and calculate the distance from the leading edge line (a) of the corrugated board sheet starting from the paper feed section (not shown) to the printing design A5 and from the measuring roll 302. The distance to the printing plate 305 mounted on the printing cylinder 306, that is, the measuring roll 3
02 to the printing cylinder 306, press roll 307 relative point zero point + printing cylinder 306 circumference distance to the printing plate 305 as the set dimension on the machine, the line on the design development dimension of the corrugated board case (I ) to the print design A5, the excess dimension is measured by the feed roll between each unit, in this unit, the 'feed roll 303.
, 303', 308, 308' The print cylinder 3
06 is driven by an AC servo motor, and when the printing plate 305 mounted on the printing cylinder 306 reaches the position of the printing design A5 from the line (a) on the corrugated board sheet, the printing cylinder 306 with the printing plate 305 mounted passes through. The printing plate 3 is rotated in synchronization with the paper speed and in synchronization with the opposing paper feeding speed.
05, the paper is printed on a corrugated cardboard sheet, and then fed to the next unit via feed rolls 308, 308'.

At this time, the press roll 307 is synchronized with the feed rolls 308 and 308', and the feed roll 303
, 303', press rolls 312, 318, 322, die receiving rolls 326, 330, rule receiving rolls 332, 3
36, die receiving roll 342, feed roll 316,
316'317, 317', 323, 323'327,
327', 331, 331'335, 335', 339
,339'343,343'346'346',347
, 347', 348, 348' and 349 are all operating in synchronization, but printing cylinders 306, 309, 315, 320,
Die rolls 325, 329, ruled rolls 334, 338,
The dimensions of each set of the die roll 340 and rotary cutters 344, 344' are stored in the computer.
The signal sent from the measure roll is calculated, and a drive signal is sent to each unit so that when the corrugated sheet is fed into the designed position, it can be processed into the specified position. By using the AC servo motor that performs the catch-up speed or delayed start drive operation, it is possible to operate the unit by numerical control stored in a computer, regardless of the circumference of the body or the distance between the units. be.

[0013] In addition, each unit having this function includes printing units 01, 02, 03, 04, 05, 06 as shown in Fig. 13.
, slotting unit 07, die cutting unit 0
9,010, When the rotary cutter 012 is set as a series of machines, the printing units 02, 04, 06 pass the paper, and the level line Q is between the press rolls 212, 212', between the press rolls 222, 222', 232, 232 By raising the printing unit so that it is between It is possible to reduce setup time.

Furthermore, if the die cutters 09 and 010 are used in their normal state, and the stopping point of the die blade is placed at the top, the setup time can be reduced here as well by using them alternately. In addition, the press rolls 212, 222,
232 has a role as a feed roll,
The rotation direction is reverse rotation, 212, 212', 222,
It becomes a feed roll facing 222', 232, and 232'.

[0015] In equipment having this characteristic, the distance between each unit does not necessarily have to be equal, and the circumference of each printing cylinder, die roll, etc. does not have to be the same. It is coming. This has the great feature of allowing unique printing processing methods to be set.

Furthermore, since it is vertically threaded, the width of the machine is only about half that of the current horizontally threading high-grade machine, and although the overall length of the machine is slightly longer than that of the horizontally threading high-grade machine, it can be set without much difference. There is Mellit.

Examples of unique printing processing include printing designs M, N, K, H and printing designs M', N shown in FIGS. 23 and 24.
', K', and H' are designs with the same dimensions, but even if the overall case development dimensions change, the same printing plate can be used to immediately print small or large cases with the same design. It has characteristics.

[0018] This can also be said in FIGS. 25 and 26, but
In this type model case, M2, M3, M4, M5
, M6 dimensions are the same, and M1 and M0 are often longer or shorter, but in this case, it can be processed in less than 1/10th of the conventional processing time and setup time. This invention has made it possible to reduce the number of manpower to less than one-fifth.

FIG. 1 is a diagram illustrating a cardboard case type A type 1, in which printing units 101, 102, 10
3,104 and the printing color is different for each unit,
The printing case shown in FIG. 12 is expressed as four-color printing in FIG. The development length of printing designs A5 and A7 is the size that can be attached to the length, and the printing designs A6,
If the printing design of A8 is also the same color and the development dimension length of the printing design A6 and A8 is the size that can be attached to the circumference of the printing cylinder 315, only two printing units 101 and 103 are operated, and printing units 102 and 104 are operated. It is also possible to raise the entire unit as in the printing units 02, 04, and 06 in FIG. 13 in order to install printing plates necessary for printing the next lot during operation.

In that case, a paper passing line Q is inserted between the rolls where the press roll 312 and the feed roll 312' of the printing unit 102 are in contact, and a paper passing line Q is similarly inserted between the rolls where the press roll 322 and the feed roll 322' of the printing unit 104 are in contact with each other. Go up until line Q enters and press roll 3
12, feed roll 312', press roll 322,
The feed roll 322' is similar to the feed rolls 303, 3
03', 308, 308', 316, 316', 317
, 317', 323, 323', etc., and synchronized rotation method.

[0021] Those indicated by numerals 107 and 109 are notches A9, A9', A10, A10'A11, A11'
This is a slotter die unit that performs slotting processing, and includes a die roll 32 having slotter die blades 324 and 328.
5, 329 and die receiving rolls 326, 330 whose surfaces are wrapped with hard urethane relative thereto, and the above-mentioned notches are formed by slotting when the corrugated cardboard sheet passes between the blade and the receiving roll. Feed rolls 323, 323' in slotter die units 107, 109
, 327, 327' and 331, 331'.

Reference numerals 116 and 108 indicate ruled line die units, which process ruled lines A12 and A13 shown in FIG. 8 and ruled lines A14 and A15 shown in FIG. 9. The unit includes a ruled line die roll 334 having ruled line dies 333 and 337.
, 338 and a receiving roll 3 wrapped with hard urethane.
32, 336, and feed rolls 331, 331', 335, 335', 339, 33 between the opposing rolls.
9', the printed corrugated cardboard sheet that is conveyed is processed with ruled lines A12, A13, A14, and A15.

The die-cutting unit 110 has a die-cutting roll 340 having a die-cutting blade 341 and a receiving roll 342 whose surface facing the die-cutting roll 342 is wrapped with hard urethane. The paper is conveyed and passed through 343 and 343'. The cardboard sheet that has been printed, slotted, and ruled has a notch A16,
A16' is formed by die cutting.

Finally, in the rotary cutter unit 112, the cutter roll 34 equipped with the blades 345, 345'
4,344' between feed rolls 343,343' and 3
46, 346', the printed, slotted, ruled line, and die-cutting corrugated sheet is cut into the cutting section A so that it has the dimension L as shown in FIG. 11.
At step 17, cutting is performed. and feed roll 347
, 347', 348, 348', 349, 349' are discharged and conveyed on the paper passing line Q, and the processing operation is completed.
The box will look like the one shown in Figure 12.

[0025] Code a, a', a'', a''', e, e
', e'', e''', e4, and e5 are proximity switches for the control circuit used to detect the starting point of single-acting operation of each unit and to stop the unit at the end of rotation. The line S is connected to an operation panel 115 incorporating a computer through each operation circuit line.

Feed rolls 308', 316', 31
7', 323', 327', 331', 335', 33
A measure roll 302 is incorporated in 9', 343', and 346'.

Reference numeral 114 indicates a cutter blower pipe, which sucks and discharges the pieces of paper A2, A2' to be trimmed by the slitter knives 301, 301'.

Reference numerals 304, 310, 319, and 313 indicate inking devices that supply printing ink to each printing plate.

13, numerals 201 and 201' indicate a slitter knife, 014 indicates cutter blower piping,
202 is a major roll, 203, 203'208, 2
08', 216, 216', 217, 217', 223
,223',228,228',233,233',2
37, 237', 240, 240', 243, 243'
,248,248',251,251',252,25
2', 253, 253', 254, 254' are feed rolls, 204, 210, 213, 219, 224, 2
29 is an inking device, 205, 211, 214, 221, 2
25, 231 is a printing plate, 212, 218, 222, 227
, 232 is a press roll, 235 is a slotting blade,
239' is a ruled line die, 244, 246 are die cutter blades,
250, 250' are rotary cutter blades, d, d', d'
', d''', d4, d5, g, g', g'', g''
', g4, g5 are proximity switches, Q is a paper passing line, and S is a connection line for each switch, measuring roll, etc., and the operation circuit from the computer built-in operation panel 015.

FIGS. 14 to 19 are exploded views of a blank sheet explaining the processing order of the B1 type deformed case, FIG. 20 is a perspective view of a box completed from the blank sheet, and FIG. 21 is another process of the deformed B1 case. FIG. 22 is a perspective view of a box assembled from the blank sheets of FIG. 21.

[0031]

Effects of the Invention As described above, in the printing and processing machine for corrugated board of the present invention, a measuring roll is arranged on each of the feed rolls so that each processing unit can be driven individually, so that the distance between the units can be reduced. Since the length can be shortened, there is an advantage that the entire device can be made smaller.

[0032] In the apparatus of the present invention, the distance between each unit does not necessarily have to be equal, and the circumferential length of each printing cylinder, die roll, etc. does not have to be the same. be. This has the great feature of allowing unique printing processing methods to be set.

In addition, since it is vertically threaded, the width of the machine is only about half that of the current horizontally threading high-grade machine, and although the overall length of the machine is slightly longer than the horizontally threading high-grade machine, it can be set without much difference. There is Mellit.

Examples of unique printing processing include printing designs M, N, K, and H shown in FIGS. 23 and 24, and printing design M.
', N', K', and H' are designs with the same dimensions, but even if the overall case development dimensions change, the same printing plate can be used to immediately print small or large cases with the same design. It has great features that can be processed.

[0035] This can also be said in Figs. 25 and 26, but
In this type model case, M2, M3, M4, M5
, M6 dimensions are the same, and M1 and M0 are often longer or shorter, but in this case, it can be processed in less than 1/10th of the conventional processing time and setup time. This invention has made it possible to reduce the number of manpower to less than one-fifth.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of a printing and processing machine for corrugated board.

FIG. 2 is a plan view of the corrugated board sheet after the first color has been printed and trimming has been performed.

FIG. 3 is a plan view of the corrugated board sheet at the time when the second color is printed.

FIG. 4 is a plan view of the corrugated board sheet at the time when the third color is printed.

FIG. 5 is a plan view of the corrugated board sheet at the time when the fourth color is printed.

FIG. 6 is a plan view of the corrugated board sheet at the time when notches A9, A9', A10' and A10' are formed.

FIG. 7 is a plan view of the corrugated board sheet at the time when notches A11 and A11' are formed.

FIG. 8 is a plan view of the corrugated board sheet at the time when ruled lines A12 and A13 are formed.

FIG. 9 is a plan view of the corrugated board sheet at the time when ruled lines A14 and A15 are formed.

FIG. 10 is a plan view of the corrugated board sheet at the time when notches A16 and A16' are formed.

FIG. 11 is a plan view of the corrugated cardboard sheet after it has been cut by the cutting section 17.

FIG. 12 is a completed assembled perspective view of an A1 type corrugated box made by the processing machine of the present invention.

FIG. 13 is an overall configuration diagram of a printing machine for corrugated board.

FIG. 14 is a plan view of the corrugated board sheet after the first color has been printed and trimming has been performed.

FIG. 15 is a plan view of the corrugated board sheet at the time when the second color is printed.

[Fig. 16] Notches B9, B9', B9'', B9'''
and FIG. 7 is a plan view of the corrugated board sheet at the time when ruled lines B10 are formed.

FIG. 17 is a plan view of the corrugated board sheet at the time when ruled lines B11 are formed.

[Fig. 18] Notches B12, B12', B12'', B1
2''' is a plan view of the corrugated board sheet at the time when it is formed.

FIG. 19 is a plan view of the corrugated cardboard sheet after it has been cut at cutting section B13.

FIG. 20 is a completed assembled perspective view of a B1 type corrugated box made by the processing machine of the present invention.

FIG. 21 is a plan view of a modified B1 type case blank.

FIG. 22 is a completed assembled perspective view of a box made from a modified B1 type blank.

FIG. 23 A1 illustrating an example of printing processing by the apparatus of the present invention
FIG. 3 is a plan view of a blank for a ceremony box.

FIG. 24 is a plan view of an A1 type box blank illustrating the printing process performed on a small case by the apparatus of the present invention using the same printing plate as in FIG. 23;

FIG. 25: B1 illustrating an example of printing processing by the apparatus of the present invention
FIG. 3 is a plan view of a blank for a ceremony box.

FIG. 26 is a plan view of a B1-type box blank, illustrating the printing process performed on a small case by the apparatus of the present invention using the same printing plate as in FIG. 25;

[Explanation of symbols]

101 Printing unit 102 Printing unit 103 Printing unit 104 Printing unit 108 Ruled line unit 109 Slotter die unit 110 Die cut unit 112 Rotary cutter unit 113 Slitter unit 114 Cutter blower unit 115 Computer built-in control device 301 Slitter blade 302 Measure roll

Claims (1)

[Claims] [Claim] A large number of power control mechanisms each having a power control mechanism that starts and operates the printed design designed on the corrugated board sheet at any dimensional position when the pulse signal sent from the measuring roll matches the numerical value calculated and stored by a computer. A printing mechanism with a printing cylinder is connected to a series of box-making machines that perform ruled line processing, slotting processing, die cutting processing, cutting processing, slitting processing, etc. on printed corrugated cardboard sheets, and a measuring roll is placed at any size position. The machine is equipped with a large number of die rolls that have a power control mechanism that starts and operates when the signal sent from the machine is calculated by a computer and matches the stored value, and a box-making mechanism that includes a rotary cutter, ruled die rolls, and slitter. A printing processing machine for corrugated board equipped with a processing mechanism that allows dimension determination to be less restricted by the drum circumference and diameter between units and processing machines.