JPH04141400A - Punched blank manufacturing device for paper ware or the like - Google Patents

Abstract

PURPOSE:To perform efficient manufacturing by providing a printing part, a coating part, a paper discharge part and a delivery conveyor with a front contact part and a printing paper rear end part lifting mechanism provided at its tip part, and connecting a cutting part, a punching part and a punched piece discharge part in order at a conveyor part from the front contact part. CONSTITUTION:Printing paper P printed at a printing part 1 is conveyed onto a delivery conveyor 3 at a paper discharge part 2 from a coating part 1b and an ultraviolet drying device 1a, and to an upper and lower auxiliary paper discharge parts 2U, 2D at the time of trouble check. Next to the delivery conveyor 3, there are provided a first and a second conveyor paths 3a, 3b and a front contact part 4 protruding/ receding onto/from the rear end part of the second conveyor path 3b. When the printing paper P is stopped in contact with the protruding front contact part 4, the following printing paper front end part is slipped into the lower side by lifting mechanism 5. With this action of the lifting mechanism, the preceding printing paper P is conveyed into a machining process. The printing paper P led into a cutting part 6 and punching parts 7a, 7b is subjected to cutting and punching while being stopped, and then discharged onto a discharge conveyor 12.

Description

[Detailed description of the invention] [Industrial application field]

The present invention involves printing paper such as paperboard in a desired manner, applying a resin coat to the required areas, and then cutting it out into a blank of a predetermined shape such as a paper carton and punching it to produce a blank for a paper carton or the like. The present invention relates to a punching blank manufacturing apparatus for manufacturing a punched blank.

[Conventional technology]

Conventionally, when manufacturing blanks such as folding cartons, a sheet-fed printing machine prints a predetermined pattern on paperboard as a base material, and after loading this printed paperboard on a discharge paper stacking table, it is shaped into a predetermined shape. For punching, the printing board on the loading table is cut and cut into a predetermined blank shape using a punching and cutting machine, and then the printing board is cut and cut into a predetermined blank shape using a punching machine.

[Problem to be solved by the invention]

According to the above-mentioned conventional punching blank manufacturing equipment, the printing process, cutting out, and punching process are manufactured through discontinuous manufacturing processes using individual manufacturing lines, which is inefficient. If a resin coating process is added after printing for such purposes, it becomes extremely complicated. For this reason, printing,
There has been a desire for an apparatus that can carry out each process, such as cutting out and punching, as one continuous process. In response to these conventional demands, the present invention is a technical solution to the problem, and has made it possible to carry out the process from printing to forming blanks on sheet paperboard in one continuous line. The object of the present invention is to provide an apparatus for producing punched blanks for paper containers and the like.

[Means to solve the problem]

As a means to solve such problems, the present invention
A printing section for sheet-fed printing paper, a coating section that applies a resin coat to the printed paper printed in this printing section, a paper discharge section that discharges the printed paper coated with resin in this coating section, and this paper discharge section. A delivery conveyor that receives printed paper from the section and continuously conveys it, a front abutment part that temporarily stops the printing paper at the tip of the delivery conveyor, and a lower side of the rear end of the printed paper that comes into contact with this front abutment part. a printing paper trailing edge lifting mechanism for inserting the front edge of the next printing paper into the printing paper, a cutting and cutting section that is located at the rear of the front part and cutting the printing paper into the shape of a punched blank; A punching part for punching out the part cut out at the front part, and a gas discharge part at the rear part are provided, and the printing paper that has come into contact with the front part is passed through the punching part from the cutting part in the rear part, and the gas is discharged through the punching part. The gist thereof is that a conveying section is provided that conveys intermittently in the section direction.

[For use]

According to the apparatus of the present invention, each operation of printing, resin to 1-1 cutting, and punching can be performed continuously in a series of processes on the same line, and printing is equipped with a printing plate cylinder or printing surface plate that operates in a rotary or reciprocating manner. The printing paper is sent out from the department,
After the resin coating is applied, the printing paper is smoothly conveyed to a cutting section and a punching section which continuously perform reciprocating operations to produce blanks. In addition, for printed paper (paperboard) that is printed and discharged continuously at a predetermined interval, even if the printed paper is stopped immediately before it is delivered to the cutting and cutting section, the trailing edge of the first stopped printed paper will always overlap. Since the leading edge of the subsequent printed paper is fed under the lower side, collision between the first printed paper and the subsequent printed paper is avoided, and the frictional resistance on the upper side of the subsequent printed paper is reduced. By opening the front section, a small amount of printed paper can be sent to the cutting section, and even though the printing operation and cutting operation are continuous, the operation of transferring the printed paper to the cutting section side, There is no hindrance to transportation and processing operations. Moreover, the paper delivery section includes a delivery conveyor as the main paper delivery section,
An auxiliary paper ejecting section is connected above and below, so that even if a problem occurs during the cutting or punching operation, the upper auxiliary paper ejecting section can be temporarily connected to the upper auxiliary paper ejecting section so that the printing operation in the printing section can continue without stopping. Paper can be ejected. In addition, when printing is started and the print register or color density is adjusted in the printing section, the print sample at the start of printing can be ejected to the lower auxiliary paper ejection section for viewing. By discharging a portion of the paper as a print sample to the lower auxiliary paper discharge section, it becomes possible to check and adjust the finished state of the print. In addition, by operating the printing section and the cutting section and stopping the stripping station and/or the blanking section such as the blank punching stage, printing and punching are performed, and the printed paper on the folding carton without forming a blank is delivered to the paper output section. Can be discharged.

【Example】

Hereinafter, the present invention will be explained in more detail with reference to illustrated embodiments. FIG. 1A and FIG. 1B are divided side views showing an embodiment of an apparatus for producing punched blanks for paper containers and the like equipped with a coating section according to the present invention. FIGS. 1A and 1B are continuous, with the line A--A on the right side of FIG. 1A overlapping the line A--A on the left side of FIG. 1B. Note that FIG. 1B is shown enlarged for ease of explanation. In the figure, reference numeral 1 denotes a printing section, which consists of a printing press equipped with a rotary-operating printing plate cylinder and printing presses of several colors.It is driven by a driving motor M1, and performs predetermined printing on printing paper. If necessary, the ink can be dried in the ultraviolet drying device 1a and then discharged to the paper discharge section 2. As shown in FIG. 1B, the printing section 1 includes a printing plate cylinder 1b
It consists of a blanket (transfer) cylinder 1b' and an impression cylinder IC, and prints on paperboard supplied between the blanket cylinder 1b' and the impression cylinder 1C.For example, the first color is transferred to the printing plate cylinder 1.
Printing is carried out using the ink from the printing plate cylinder 1e and the blanket cylinder 1e from the impression cylinder 1c via the delivery cylinder 1d.
' Blanket cylinder 10 of the printing section consisting of an impression cylinder 1f
' and the impression cylinder 1f, the paperboard is fed and the second color is printed. A coating section 1h formed by opposing a coater roll 1g is connected to the impression cylinder 1f, and the coating section 1h coats the entire surface of the paperboard printed in the printing section 1, that is, the printing paper, or at required locations. It is provided so that it is coated with a resin and sent to the ultraviolet drying device 1a for drying. The ink used for printing in printing section 1 can be normal ink (preferably quick-drying ink) or UV-curable ink (ultraviolet-curable ink), and even for resin coating, quick-drying resin liquid or ultraviolet drying equipment can be used. A UV-curable resin material that dries in step 1a is selected. In FIG. 1B, the impression cylinder for the final printing color is also used as the coater impression cylinder for the resin coat, but as shown in FIG. 1B and FIG. , the coater impression cylinder may be made independent. In other words, when the final color (second color in the illustration) is printed, the printed paper is transferred from the impression cylinder 1f to the delivery 1d.
', then introduced into the dryer 1n, and the dryer 1n
The ink is dried by a dryer it (hot air dryer, UV dryer) installed opposite to the circumferential surface of the dryer 1n.
It is also possible to send the printing paper from there through the delivery 1j to the coating section 1h, which includes a coater roll 1g and a coater impression cylinder 1k, and apply the resin coating as described above. The printing section 1 in FIGS. 1A, 1B, and 2 shows the configuration of an offset printing type, and includes a printing plate cylinder 1b.
, le are provided with an ink supply roller section 11 and a dampening roller section 1m. In addition to the rotary-operating configuration described above, the printing unit 1 may have a flat-pressure printing unit configuration that performs reciprocating operation. The paper discharge section 2 is equipped with an endless delivery chain 2a, and this delivery chain is provided with gripping claws 2b at equal intervals, so that the printed paper P discharged from the printing section 1 can be conveyed to the delivery conveyor 3. That's how it is. Further, the paper discharging unit 2 is capable of performing three types of paper discharging operations, for example, in which the printing paper P is normally conveyed to the delivery conveyor 3;
As mentioned above, when a trouble occurs or when checking the printing status, the sheet can be conveyed to the upper auxiliary sheet discharge section 2U or the lower auxiliary sheet discharge section 2D. The delivery conveyor 3 is for receiving the printing paper P from the paper discharge section 2 and conveying it to the rear processing process.As shown in FIG.
The transport path 3a and the second transport path 3b are provided. For example, the delivery conveyor 3 winds the printing paper P around a mouth cylinder (for delivery) that holds the printing paper P in its mouth, transfers the first printing paper P from the delivery chain 2a to the mouth cylinder, and then releases the grip. By this, the printing paper P is placed on the delivery conveyor 3 and conveyed, and the paper is transferred to the discharge section 2.
endless delivery chain 2a and the first conveyance path 3a
The printed paper may be delivered between the two. The rear end of the second conveyance path is provided with a front abutment 4 that protrudes into the conveyance path and performs a recessed return operation or a swing reversal (standing up, falling down) operation, and the front abutment 4 that protrudes onto the conveyance path A lifting mechanism 5 is provided for lifting the rear end of the printing paper P that has stopped abutting and allowing the front end of the following printing paper to slip under it. The holding mechanism 5 is provided with a fulcrum 5C or a rotating shaft below the conveyance path surface, for example, as shown in FIG.
The flap 5b is a single blade whose tip end is raised and protrudes slightly upwardly from the lower side of the conveyance path, or the flap 5b1 rotates counterclockwise in the drawing around the fulcrum 52, or as shown in FIG. A rotary impeller 5a in which a plurality of flaps 5d are arranged radially around a rotation axis.
But it's okay. If the flap 5b is a single blade as shown in Fig. 3, hold the rear end of the printing paper P that has stopped in contact with the front abutment 4, and pull the front end of the following printing paper underneath. The flap 5b is forcibly moved in the conveyance direction to the downstream end of the conveyor 3b by a quick action faster than the conveyance speed of the printing paper P, and then self-avoided downward from the conveyor 3b, whereby the printing paper P The rear end portion of the printing paper P may be overlapped with the front end portion of the subsequent printing paper P. Thereafter, the flap 5b returns to the lower part on the conveyance upstream side of the conveyor 3b. In the case of the rotary impeller 5a, it is only necessary to rotate the slump 5d at a predetermined position around the rotating shaft 5c at a predetermined speed (peripheral speed higher than the conveyance speed of the printing paper P). Then, at the same time, the front end of the printing paper P, which is stopped in contact with the front part 4 which has protruded and is stopped, is held by the grip claw 8a of the conveyance chain 8, and the front part 4 is moved upward or downward from the conveyance path. The printing paper P is caused to move forward in the direction of the cutting section 6 by returning to the immersed state, and then immediately moved to the front section 4.
moves to project into the conveyance path again, and causes the subsequent printing paper P to come into contact with the front part 4 and stop. Thereafter, by repeating the above operations, the printing paper P is moved in the direction of the cutting section 6. The process after the delivery conveyor 3, the lifting mechanism 5, and the front part 4 consists of a cutting part 6 and a punching part 7, which are wound around a sprocket 8b, and a plurality of gripping claws 8a are attached at equal intervals. The printing paper P, once in contact with the front part 4, is sequentially guided by each of the gripping claws 8a of the endless conveyance chain 8, and is intermittently conveyed in the direction of the cutting and cutting part 6. The printing paper P is sequentially introduced into each of the cutting and cutting sections 6, the punching section 7a, and the punching section 7b, and is stopped each time. Part 7b
performs reciprocating operation in the vertical direction to cut, trim, and punch the printing paper P. In the present invention, as shown in FIG. 6, an auxiliary front part 41 is provided on the upstream side of the front part 4 at an interval equal to or longer than the length of the printing paper P. A stack part 51 is provided on the upstream side of the front part 41, and the bottom of the stack part 51 gradually descends from the same height as the delivery conveyor 3.
An elevating table 56 that rises and returns is provided, and the printing paper P that stops in contact with the auxiliary front abutment part 41 can be successively stacked on the elevating table 56. 51a and 51b are the front wall and rear wall of the stack section, respectively. At this time, the delivery conveyor 3 includes a moving delivery conveyor 31 that expands and contracts in the horizontal direction over a distance that approximates the longitudinal length of the stack section 51. When the stack section 51 is used by protruding the auxiliary front part 41, the movable delivery conveyor 31 freely retreats (contracts) in the direction (upstream side) of the delivery conveyor 3, and the front part 4
When the stack section 51 is not used by retracting the stacking section 1, the moving delivery conveyor 31 is moved forward and back (extended) to return to the normal processing operation. Incidentally, the printing paper P stacked on the lifting platform 56 of the stacking section 51 is gradually lifted by suctioning and holding the front end of the printing paper P by the vacuum lifting mechanism 50, and the printing paper P is moved forward by feeding it horizontally onto the conveyor 3b. It is brought into contact with the contact section 4 and conveyed toward the punching and cutting section 6 by a conveyance chain 8. Further, in the present invention, as shown in FIG. 7, there is a step h (10
w~100 mm), and a stack section 51 is provided at the upper part of the downstream side of the delivery conveyor 3. E51a
, 61b are the front wall and rear wall of the stack portion 51. The printed sheets P conveyed on the delivery conveyor 3 at predetermined intervals are sequentially inserted from below into the stacking section 51. That is, while lifting the preceding printed paper P at the bottom of the stacking section 51 using the lifting mechanism 52 (for example, a single-sheet flap 52b) provided at the bottom of the stacking section 51, the subsequent printing paper P is
Introduce it to the bottom. The subsequent printed paper P is introduced below the preceding printed paper P by the nip pressure between the conveyor 3 and the introduction roller 55 above it. In this way, the subsequent printing papers P are introduced to the bottom one after another and stacked (for example, printing papers 5 to 5).
(approximately 20 sheets). The top layer of stacked printing paper P is transferred to the vacuum suction unit 5
0, each sheet is sucked up and held, moved horizontally, and sent onto the conveyor 3b in front. The sent-out printing paper P is once stopped in contact with the front part 4 for registration, and is held in the grip claw 8a of the conveyance chain 8 and conveyed in the direction of the cutting and cutting part 6 at the front, where it is processed. It is something. The cutting section 6 includes a fixed support plate 61 to which a cutting blade 6a is attached, and a pressing surface plate 6c that swings up and down, and cuts a predetermined cutout into the printing paper P conveyed by the conveyance chain 8. Tails came to be. This cutting section 6
is driven by a driving motor M2, a crank is rotated by this motor, and the surface plate is driven up and down by an operating arm attached to this crank. This driving motor M2 and the motor M+ of the printing section 1
are electrically connected to each other by a pulse generator PG, and as shown in FIG. The delivery conveyor 3, the cutting section 6, and the punching section 7 can each be operated independently by a driving motor M2. This is to ensure that even if a problem occurs in one, the other will continue to operate. The punching section 7 is the first half stripping station 7a.
and blanking station 7b in the latter half,
In the stripping station 7a, an upper support plate 7d having a pin 7c for punching out a small hole cut by the cutting section 6 swings up and down, and a lower support plate 7e is fixed in contrast to the upper support plate 7d. It is designed to synchronize with the vertical movement of the cutting section 6. The upper support plate 7d can be moved up and down by a crank mechanism similar to the mechanism that operates the surface plate 6c of the cutting section 6. Further, in the blanking station 7b, an upper support plate 7f for punching swings up and down, and a lower support plate 7g relative thereto is fixed. The vertical swinging motion of the upper support plate 7d of the stripping station and the upper support plate 7f of the blanking station can be performed by a crank mechanism, but the crank shaft of the cutting and cutting section 6 is not used to drive the crank mechanism. It can be operated in conjunction with a gear or a power transmission shaft. still,
In the cutting section 6, the upper support plate 6b side is used, and in the stripping station 7a, the upper and lower support plates 7d and 7
e may be configured to move up and down, respectively. Reference numeral 9 denotes a mounting table, which is provided below the blanking station 7b so as to be able to rise and fall, and which gradually descends from a fixed position below the female punching mold and then rises to the fixed position again. Blanks P1 formed by punching can be loaded via a pallet or the like. This loading platform 9
The surface of the loading platform 9 may be in the form of a belt or roller type conveyor, and as shown in the figure, wheels 1o may be provided on the underside of the loading platform 9 so that the loading platform 9 can be moved on rails 11. Reference numeral I2 denotes a discharge conveyor, which is provided at the rear of the punching section 7 and is configured to discharge the vented gas P2 to a vented gas discharge packet or a loading/discharging table I3. Note that a vent gas exhaust bucket H4 is also placed below the stripping station 7a, so that the vent gas from the stripping operation can be stored therein. Further, the discharge conveyor 1
For example, if a mechanism for moving and retracting the paper sheet 2 to the side is adopted, printed and cutout sheets can be stacked and delivered to the paper delivery section 15. The apparatus according to the present invention is configured as described above, and includes a printing section 1
The printed paper P is coated with resin and dried in an ultraviolet drying device, then conveyed to the delivery conveyor 3 via the paper discharge section 2, cut out in the cutting section 6, and cut out in the punching section 7. The blanks that are punched out and become products are placed on the loading platform 9.
The vented gas is discharged into the exhaust packet.

【Effect of the invention】

According to the apparatus of the present invention described above, it is possible to perform the printing process on printing paper, the cutting process of a predetermined shape, and the punching process in a continuous process line, so that blanks such as paper containers can be manufactured extremely efficiently. can be manufactured. In addition, even if a problem occurs in the cutting and cutting section or punching section during operation, the printing section can continue by ejecting paper to the upper auxiliary paper ejection section, and the paper can be ejected to the lower auxiliary paper ejection section. For example, the finished state of printing can be checked without stopping the printing section. Furthermore, the delivery conveyor is equipped with a lifting mechanism, which allows subsequent printed paper to slip under the first printed paper, allowing the first printed paper to be conveyed with light force, while also preventing scratches caused by friction. It has excellent effects such as

[Brief explanation of the drawing]

FIGS. 1A and 1B are explanatory side views of one embodiment of the apparatus for producing punched blanks for folding cartons and the like equipped with a coach ink section according to the present invention, and FIG. 2 is an explanatory side view of another example equipped with a coating section. Explanatory diagram showing the device of the present invention from the side, 3rd
The figure is an enlarged view of the delivery conveyor and printing paper stacking mechanism.
FIG. 4 is a diagram of another embodiment of the lifting mechanism, FIG. 5 is an explanatory diagram showing the operational relationship of the driving motor, and FIGS. 6 and 7 are the printed paper stacking mechanism provided on the upstream side of the cutting section in the present invention. FIG. 1... Printing section 1a... Ultraviolet drying device 1b, 1e... Printing plate cylinder lb', le'... Blanket cylinder 1c+1f... Impression cylinder 1d, 1d'... Delivery cylinder Ig...・Coater roll 1h...Coating section in...Drying cylinder 2...Paper discharge section 2U...Upper auxiliary paper discharge section 2D...Lower auxiliary paper discharge section 3...Delivery conveyor 31...・Mobile delivery conveyor 4...Front part 41...Auxiliary front part 5
... Lifting mechanism 50 ... Vacuum suction section 52 ... Lifting mechanism 54 ... Delivery roller 56 ... Elevating table 6 ... Cutting and cutting section 7 ... Punching section 8 Conveyance chain 9... Loading platform 10... Wheels 11... Rail I2... Discharge conveyor 13, +4... Removal gas discharge bucket P... Printing paper Pl... Blanks Pl... Extraction Gas Ml, M2... Drive motor PG... Pulse generator 53... Pushing roller 51... Stack section 55... Inlet port - Rato

Claims (1)

[Claims] A printing section for sheet-fed printing paper, a coating section that applies a resin coat to the printed paper printed in this printing section, a paper discharge section that discharges the printed paper coated with resin in this coating section, and this paper discharge section. A delivery conveyor that receives printed paper from the section and continuously conveys it, a front abutment part that temporarily stops the printing paper at the tip of the delivery conveyor, and a lower side of the rear end of the printed paper that comes into contact with this front abutment part. a printing paper trailing edge lifting mechanism for inserting the front edge of the next printing paper into the printing paper, a cutting and cutting section that is located at the rear of the front part and cutting the printing paper into the shape of a punched blank; A punching part for punching out the part cut out at the front part, and a gas discharge part at the rear part are provided, and the printing paper that has come into contact with the front part is passed through the punching part from the cutting part in the rear part, and the gas is discharged through the punching part. 1. An apparatus for manufacturing punched blanks for paper containers, etc., characterized by being provided with a conveying section that conveys intermittently in the section direction.