CN202037973U - On-line peeling rotation gravure printing equipment - Google Patents

Abstract

The utility model relates to on-line peeling rotation gravure printing equipment which sequentially comprises a rotation double-station non-stop unreeling machine, a leading-in device, a peeling unit, a double-station film reeling machine and a set type rotation gravure printing unit. The on-line peeling rotation gravure printing equipment also comprises a secondary taping mechanism, and the secondary taping mechanism is positioned between the double-station film reeling machine and the set type rotation gravure printing unit. The secondary taping mechanism comprises a tape roll, a gluing steel roll, a gluing roll and a reciprocating mechanism. Compared with the prior art, the on-line peeling rotation gravure printing equipment has the beneficial effects that in the production process, a base membrane and transferred composite paper are compounded and then are directly reeled to be made into a transferred composite paper roll with the base membrane which is not peeled, and the transferred composite paper is protected by the base membrane on the surface, so that the quality defects of abrasion marks and gluing marks are avoided, and the rejection rate is greatly reduced.

Description

An in-line peeling rotogravure printing equipment

technical field

The utility model relates to a printing device, in particular to an in-line stripping rotary gravure printing device. the

Background technique

As the country's requirements for environmental protection are getting higher and higher, ordinary composite paper is used less and less because of the non-degradable base film on the surface. In order to meet the requirements of environmental protection, the printing industry has turned to transfer composite paper (ie transfer aluminized paper) for printing. the

The existing production process of transfer composite paper includes the following steps in turn: coating a release layer on the base film, vacuum aluminum plating on the release layer to form a vacuum aluminum layer, and combining the vacuum aluminum layer with paper to obtain a base film The transfer composite paper, the base film is peeled off from the release layer to obtain the transfer composite paper, and the transfer composite paper is rolled into a transfer composite paper roll. In order to improve the printing performance of the transfer composite paper, usually after the base film is peeled off from the release layer, a layer of varnish is printed on the release layer of the transfer composite paper, dried and rewound to make a finished product. A production method well known in the printing industry. the

Rotary gravure printing generally adopts double-station non-stop unwinding, unrolling the web, and inputting the substrate (that is, the web) to the unit-type printing unit for printing by the introduction device, which is a mature printing method. Way. The transfer composite paper roll is a roll of transfer composite paper after the base film is peeled off. The surface of the transfer composite paper is an aluminum layer (ie vacuum aluminized layer) and a layer of coating (varnish layer) on the surface of a few microns, so The surface of the transfer composite paper is very sensitive to external forces such as friction. During the winding process of the transfer composite paper, under the action of tension generated during winding, the paper layers of the transfer composite paper are always subject to the stress generated by the rewinding process. Mutual friction and extrusion occur between the paper layers, so that the surface of the transfer composite paper is easy to produce rubbing and sticking defects, and it is difficult for the producer to control the quality of the transfer composite paper surface, often resulting in a large amount of waste products. the

Utility model content

The purpose of this utility model is to improve the existing technology and provide an in-line peeling rotogravure printing equipment, which can effectively avoid the defects of rubbing and sticking on the surface of the transferred composite paper. The technical scheme adopted is as follows:

An in-line stripping rotogravure printing equipment of the present utility model is characterized in that it successively includes a rotary double-station non-stop unwinding unwinder, an introduction device, a stripping unit, a double-station film winder, and a unit-type rotogravure printing unit . That is to say, the above-mentioned equipment (rotary double-station non-stop unwinding machine, introduction device, stripping unit, double-station film winder, unit-type rotogravure printing unit) are arranged in the order of processing. The composite paper roll with base film transfer is unwound by the rotary double-station non-stop unwinding machine into a strip of transfer composite paper with base film, and then the composite paper with base film transfer is smoothly introduced by the introduction device, and the transfer composite paper with base film After the paper is corrected and guided by the deflection correction device of the introduction device, it enters the peeling unit for base film peeling, and the transfer composite paper and the base film on its surface are peeled and separated, and the peeled base film is rewound by a double-station film winder , while the transfer composite paper continues to enter the unit type rotogravure printing unit to complete the printing. the

The in-line stripping rotogravure printing equipment also includes a secondary tape-applying mechanism, and the secondary tape-applying mechanism is located between the double-station film winder and the unit-type rotogravure printing unit. the

The secondary adhesive tape mechanism includes a rubber roller, a laminating steel roller, a laminating roller and a reciprocating mechanism, the laminating roller is fixed on the action end of the reciprocating mechanism, and the circumferential surface of the laminating roller is provided with a secondary adhesive tape. The adhesive surface of the secondary tape is far away from the bonding roller, and the peripheral surface of the rubber roller is in rolling contact with the peripheral surface of the bonding steel roller. The bonding roller can follow the reciprocating mechanism to move toward the bonding steel roller, so that the circumferential surface of the bonding roller contacts the peripheral surface of the bonding steel roller; the bonding roller can also move away from the bonding steel roller following the reciprocating mechanism, Make the circumferential surface of the bonding roller far away from the circumferential surface of the bonding steel roller. the

In one solution, the reciprocating mechanism is a hydraulic cylinder, and the action end of the reciprocating mechanism is a piston shaft of the hydraulic cylinder. The disadvantage is that the movement of the hydraulic cylinder is relatively slow. the

Another kind of scheme, described reciprocating mechanism is screw nut reciprocating mechanism, and screw nut reciprocating mechanism comprises motor, screw mandrel, nut, and screw rod connects the output shaft of motor, and nut is enclosed within on the screw rod, and reciprocating mechanism The action end is a nut. the

Preferably, the reciprocating mechanism is an air cylinder, and the action end of the reciprocating mechanism is the piston shaft of the air cylinder.

An in-line peeling rotogravure printing method, using the above-mentioned equipment, the process is as follows:

1) Put the base film transfer composite paper roll to be unwound on one of the unwinding shafts on the double-station non-stop unwinding machine, pass through the paper guide roller and the storage box, and transfer the composite paper tape into the deflection correction guide of the peeling unit. For the positive part, carry out horizontal deviation correction and guidance on the transfer composite paper tape, so that the lateral relative position of the transfer composite paper tape is kept at a stable position;

2) The introduction device smoothly inputs the transfer composite paper tape to the peeling unit to peel off the base film;

3) The peeled base film is rewound by a double-station film winder, and the transfer composite paper tape passes through a second tape sticking mechanism, and a piece of tape is pasted on the front of the transfer composite paper tape where the new and old paper rolls are switched;

4) Transfer the composite paper tape into the unit type rotogravure printing unit for printing. the

In the production process of transfer composite paper, after the transfer film is combined with the paper, it is directly wound to make a transfer composite paper roll with the base film not yet peeled off. Since the transfer composite paper is protected by the base film on the surface, it can be rolled up during the winding process. Put an end to the quality defects of rubbing and sticking flowers. the

During the printing process, the base film transfer composite paper roll with the base film that has not been peeled off is unwound by the double-station unwinder, and then the paper tape is smoothly introduced by the introduction device, and the paper tape is corrected and guided by the deviation correction device After that, it enters the peeling unit to peel off the base film, so that the transfer composite paper and the base film on its surface are peeled and separated. The peeled base film is rewound by the winder, and the transfer composite paper tape enters the unit type printing unit to complete printing. In this method, after the transfer composite paper and the base film on its surface are peeled off, the transfer composite paper is not rewound, which avoids quality problems such as sticking and surface scratches caused by the rewinding process of the transfer composite paper after peeling off. the

At present, rotogravure printing machines generally use double-station non-stop switching unwinding machines. In order to be able to peel off smoothly later, the unwinding machines need to use splicing when switching between old and new paper rolls. This splicing switching method can be compared with the overlapping switching Effectively reduce the thickness of the substrate at the joint, thereby reducing the impact of the subsequent printing overprint due to the sudden increase in the thickness of the substrate. Therefore, after the base film and the transfer composite paper are peeled off, only one side of the transfer composite paper is bonded by tape. In order to prevent the joint from being broken due to excessive tension during subsequent printing, it is necessary to add a second tape sticking mechanism. A layer of tape is pasted on the front of the paper roll switching joint to enhance the strength of the joint of the transferred composite paper tape, avoiding downtime caused by paper tape breakage, and ensuring the smooth progress of subsequent printing. the

Compared with the prior art, the beneficial effect of the utility model is that in the production process, the base film is directly rewound after being combined with the transfer composite paper to make a transfer composite paper roll with the base film that has not been peeled off, and the transfer composite paper has The surface is protected by the base film, so during the winding process, the quality defects of rubbing and sticking can be eliminated, and the scrap rate is greatly reduced. the

Description of drawings

Fig. 1 is the structural representation of preferred embodiment of the present utility model;

Fig. 2 is a schematic structural view of the secondary tape application mechanism of the preferred embodiment shown in Fig. 1 . the

Detailed ways

As shown in Figures 1 and 2, an in-line stripping rotogravure printing equipment in this preferred embodiment includes a rotary double-station non-stop unwinding machine 1, an introduction device 4, a stripping unit 5, and a double-station film retractor in sequence. Coiling machine 7, unit type rotogravure printing unit 11. That is to say, the above-mentioned equipments are arranged in the order of processing. The composite paper roll with base film transfer is unwound by the rotary double-station non-stop unwinding machine 1 to form a strip of base film transfer composite paper 3, and then the base film transfer composite paper 3 is smoothly introduced by the introduction device 4, with The base film transfer composite paper 3 enters the peeling unit 5 to peel off the base film 8 after being corrected and guided by the deviation correction device of the introduction device 4, and the transfer composite paper 9 and the base film 8 on its surface are peeled and separated, and the base film 8 after peeling The double-station film winder 7 performs winding, and the transfer composite paper 9 continues to enter the unit type rotogravure printing unit 11 to complete the printing. the

The in-line peeling rotogravure printing equipment also includes a secondary tape application mechanism 10, and the secondary tape application mechanism 10 is located between the double-station film winder 7 and the unit type rotogravure printing unit 11. the

Described secondary sticking tape mechanism 10 comprises photoelectric detection sensor 16, rubber roller 14, laminating steel roller 15, laminating roller 12 and reciprocating mechanism, laminating roller 12 is fixed on the action end of reciprocating mechanism, laminating roller 12 Secondary adhesive tape 11 is provided on the circumferential surface of the secondary adhesive tape 11, and the bonding surface of secondary adhesive tape 11 is far away from laminating roller 12, and the circumferential surface of rubber roller 14 is in rolling contact with the circumferential surface of laminating steel roller 15. Described laminating roller 12 can move towards laminating steel roller 15 with reciprocating mechanism, makes the circumferential surface of laminating roller 12 contact with the circumferential surface of laminating steel roller 15; Laminating roller 12 also can follow reciprocating mechanism away from The steel bonding roller 15 moves so that the peripheral surface of the bonding roller 12 is away from the peripheral surface of the bonding steel roller 15 . the

The reciprocating mechanism is the cylinder 6, and the action end of the reciprocating mechanism is the piston shaft 601 of the cylinder. the

An in-line peeling rotogravure printing method, using the above-mentioned equipment, the steps are as follows:

1. Put the base film transfer composite paper roll to be unwound on one of the unwinding shafts on the double-station non-stop unwinding machine 1, pass through the paper guide roller and the storage box, and transfer the composite paper tape 3 into the peeling unit The deflection correcting and guiding part of 5 is to carry out horizontal deflection correcting and guiding to the transfer composite paper tape 3, so that the lateral relative position of the transfer composite paper tape 3 is kept in a stable position;

2. The introduction device 4 smoothly inputs the transfer composite paper tape 3 to the stripping unit 5 for stripping;

3. The base film 8 after stripping is rewound by the double station film winder 7, and the transfer composite paper tape 9 passes through the secondary tape sticking mechanism 10, and is rewound at the front of the transfer composite paper tape 9 new and old paper roll switching joints. Paste a piece of second adhesive tape 11; Wherein, the position of secondary adhesive tape is controlled by photoelectric detection sensor 16, and this sensor is used for detecting the arrival signal of first adhesive tape 11, and this signal is used for controlling the pasting time of secondary adhesive tape mechanism To realize the positioning glue;

4. Transfer the composite paper tape 9 into the unit type rotogravure printing unit 11 for printing. the

In the production process of transfer composite paper, after the transfer film is combined with the paper, it is directly wound to make a transfer composite paper roll with the base film not yet peeled off. Since the transfer composite paper is protected by the base film on the surface, it can be rolled up during the winding process. Put an end to the quality defects of rubbing and sticking flowers. the

The following introduces the working process:

The base film transfer composite paper tape 3 that has not been peeled off from the base film is unrolled by the unwinder 1, and the double-station unwinder 1 can complete the switching between new and old paper rolls without stopping the machine, wherein the storage device 2 The function is to release the tape base film transfer composite paper tape 3 stored in it when the new and old paper rolls are switched. The transfer composite paper tape 3 with the base film that has not been peeled off is conveyed to the stripping device 5 by the introduction device 4. The introduction device 4 includes a correcting device and a dancing roller mechanism, wherein the correction device corrects the lateral direction of the transfer composite paper tape 3 with the base film. , so that the lateral position of the transfer composite paper tape 3 with the base film is relatively stable, and the dancing roller mechanism buffers the tension of the paper tape to ensure that the transfer composite paper tape 3 with the base film enters the peeling device 5 smoothly and correctly to complete the peeling, and the transfer composite paper with the base film After the strip 3 passes through the stripping device, its base film 7 and the transfer composite paper strip 9 are stripped and separated. The base film 7 is rewound and collected by the film winder 8. The film winder 8 also has a double station and has two winding shafts, which can complete the switching of the old and new film rolls without stopping the machine, and transfer the composite paper tape 9 into the The secondary adhesive tape device 10, the photoelectric detection sensor 16 is used to detect the arrival signal of the first adhesive tape, and the signal is used to control the bonding time of the secondary adhesive tape mechanism, so as to transfer the new and old paper rolls at the joint where the new and old paper rolls are switched. The front side of the composite paper tape 9 realizes positioning subsidy tape to improve the strength of the joint, and then transfers the composite paper tape 9 into the printing unit 11 for printing. the

Below in conjunction with Fig. 2, the secondary adhesive tape device is specifically described: the base film transfer composite paper tape 3 with the base film that has not been peeled off needs to be glued with two adhesive tapes when the unwinder 1 is switching between new and old paper rolls. On the front and back sides of the joint, a piece of adhesive tape is pasted on the base film 8, and another first adhesive tape 13 is pasted on the back side of the transfer composite paper tape 9. After the stripping unit 5 peels off the base film 8, transfer the composite paper tape 9 and the base film. Membrane 8 separates, and only the first adhesive tape 13 on the back side of transfer composite paper tape 9 is left. In order to ensure that the paper is not interrupted in printing, and to strengthen the strength of transfer composite paper tape 9 new and old paper roll joints, it is necessary to transfer composite paper tape 9 new 1. The other side of the old paper roll joint is exactly to paste a second adhesive tape 11 on the front of the transfer composite paper tape 9. the

The concrete work process of secondary sticking tape device 10 is as follows:

When the adhesive tape 13 at the junction of the new and old paper rolls of the transfer composite paper tape 9 passes, the air cylinder 6 moves, and the bonding roller 12 presses the bonding steel roller 15, and the second adhesive tape 11 is firmly attached to the adhesive tape under pressure. On the opposite side of 13, the adhesive tape work is completed, and the bonding roller 12 leaves the bonding steel roller 15 after a certain time delay. The photoelectric detection sensor 16 is used to detect the arrival signal of the first adhesive tape, and the signal is used to control the action time of the mechanism to realize the positioning of the adhesive tape. Laying roller 12 and laminating steel roller 15 are separate states when there is no switching joint passing through. In order to successfully complete the tape repair work, the pressure roller 14 tightly presses the transfer composite paper tape 9 on the lamination steel roller 15, and the transfer composite paper tape 9 produces a large wrap angle on the lamination steel roller 15, and the transfer composite paper tape The belt sits snugly on conforming steel rollers, flat and non-slip. The middle of the bonding roller 12 is empty, and there are many small holes drilled on the surface. Use a vacuum pump to vacuum the inside of the bonding roller 12, so that a certain negative pressure is generated inside the bonding roller 12, and the second adhesive tape 11 can be very stable. Adsorbed on the surface of the bonding roller, it will not fall off. the

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the implementation scope of the present utility model; cover. the

Claims (6)

1. An in-line stripping rotogravure printing equipment, characterized in that: sequentially comprising a rotary double-station non-stop unwinding machine, an introduction device, a stripping unit, a double-station film winder, and a unit-type rotogravure printing unit. 2. The in-line peeling rotogravure printing device as claimed in claim 1, characterized in that: the in-line peeling rotogravure printing device also includes a secondary tape-applying mechanism, and the secondary tape-applying mechanism is located at the double-station film Between the winder and the unit type rotogravure printing unit. 3. The in-line peeling rotogravure printing equipment as claimed in claim 2, characterized in that: the secondary adhesive tape mechanism comprises a rubber roller, a bonding steel roller, a bonding roller and a reciprocating mechanism, and the bonding roller is fixed on At the action end of the reciprocating mechanism, a secondary adhesive tape is provided on the circumferential surface of the laminating roller, the adhesive surface of the secondary tape is far away from the laminating roller, and the circumferential surface of the rubber roller is in rolling contact with the circumferential surface of the laminating steel roller. 4. The in-line stripping rotogravure printing device according to claim 3, wherein the reciprocating mechanism is a hydraulic cylinder, and the moving end of the reciprocating mechanism is a piston shaft of the hydraulic cylinder. 5. The in-line stripping rotogravure printing equipment as claimed in claim 3, characterized in that: the reciprocating mechanism is a screw nut reciprocating mechanism, and the screw nut reciprocating mechanism includes a motor, a screw mandrel, a nut, and the screw mandrel Connect the output shaft of the motor, the nut is sleeved on the screw rod, and the action end of the reciprocating mechanism is the nut. 6. The in-line stripping rotogravure printing device according to claim 3, wherein the reciprocating mechanism is a cylinder, and the moving end of the reciprocating mechanism is a piston shaft of the cylinder.

Images