CN111516380B

CN111516380B - Folding machine and UV printing system

Info

Publication number: CN111516380B
Application number: CN202010371062.9A
Authority: CN
Inventors: 秦永; 王�琦
Original assignee: Qingdao Sunna Electric Co ltd
Current assignee: Qingdao Sunna Electric Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2021-08-03
Anticipated expiration: 2040-05-06
Also published as: CN111516380A

Abstract

The invention relates to the field of printing equipment, in particular to a folding machine and a UV printing system, wherein the folding machine comprises a top registration unit, a triangular plate for carrying out first longitudinal folding on a paper tape, a guide roller, a cutting roller, a folding needle roller and a page storage roller which rotate relatively; the UV printing system comprises a roll paper feeding device, a tension control device, a printing tower, a UV drying device and the folding machine which are arranged in sequence; the printing tower comprises at least two printing units arranged along the longitudinal direction, the UV drying device is arranged at the top of the printing tower and comprises two groups of UV dryers perpendicular to the paper tape. The invention adopts the rotary folding machine and the web paper tape, sets the whole set of processes of paper feeding, printing, drying and folding in a set of equipment, and sets the UV drying device at the top of the printing tower to fully dry the ink of the paper without additionally increasing a cooling and humidifying device.

Description

Folding machine and UV printing system

Technical Field

The invention relates to the field of printing equipment, in particular to a folding machine and a UV printing system.

Background

The paper through the printing equipment needs to be dried to avoid the image of the printed matter from being stained and smeared due to the undried ink, and the traditional hot drying and cooling and humidifying mode needs long time along with the improvement of printing efficiency and the quality of the printed matter in the printing production of a book and periodical machine, so that the requirement of printing speed cannot be met. At present, partial single-sheet printing equipment adopts a UV device to improve the drying efficiency of paper ink, but the UV drying equipment which is independently arranged can lead to the extension of a paper path, and can not be directly connected to the next procedure, so that the printing efficiency can not be improved.

Disclosure of Invention

The present invention is directed to solve the above problems, and provides a folder and a UV printing system, which continuously set feeding, printing, drying, and folding in one system and can adapt to different types and sizes of paper, and adopts the following technical solutions:

a folding machine comprises a top registration unit, a triangular plate, a guide roller, a cutting roller, a folding needle roller and a page storage roller, wherein the triangular plate is used for longitudinally folding a paper tape in a first mode, the guide roller, the cutting roller, the folding needle roller and the page storage roller are arranged on the top end of the triangular plate, the top registration unit comprises a first fixed guide roller, a movable guide roller and a second fixed guide roller, the second fixed guide roller is arranged on the top end of the triangular plate in parallel, the guide roller is vertically arranged on the horizontal direction with the second fixed guide roller and comprises two first guide rollers arranged on two sides of the lower end of the triangular plate and two second guide rollers arranged below the two first guide rollers, the cutting roller is arranged below the second guide roller, a cutting knife is arranged on the outer edge in the axial direction, the folding needle roller and the cutting roller are matched to rotate relatively, a pricking needle and a cutting groove are arranged on the outer edge of the folding needle roller in the axial direction, the cutting groove is arranged corresponding to the cutting knife, a first folding knife is arranged in the cutting groove, and the first jaw of the outer edge of the page storage roller are arranged in the axial direction, a first floral whorl and a conveyor belt are arranged below the page storage roller in sequence.

On the basis of the scheme, the relative cylinder diameter ratio of the cutting cylinder, the folding needle cylinder and the page storage cylinder is 1:2: 2; the number of the cutting grooves is 2, the cutting grooves are respectively arranged corresponding to the positions of the cutting knives, and the inserting needles are symmetrically arranged at the central positions between the adjacent grooves along the axis of the roller of the folding needle; the number of the first jaws is 2.

Preferably, a central pair roller is arranged between the first guide roller and the second guide roller, and punching knives are arranged on the central pair roller at intervals along the axial direction; a double parallel book roller which is matched with the page storage roller and rotates relatively is arranged above the page storage roller, and the outer edge of the double parallel book roller is provided with a gripper and a second folding knife; the relative cylinder diameter ratio of the double parallel book rollers to the page storage roller is 1:2, second jaws corresponding to the positions of second folding knives are arranged on the outer edge of the page storage roller, and the number of the second jaws is 2.

Preferably, one side of the page storage cylinder, which is far away from the folding needle cylinder, is provided with a page conveying mechanism, the page conveying mechanism is a belt wheel mechanism, the belt is arranged along the direction perpendicular to the axis of the page storage cylinder, a second longitudinal folding cylinder is arranged above the belt in parallel with the belt, a third folding knife is arranged at the outer edge of the second longitudinal folding cylinder along the axis direction, second longitudinal folding rollers are arranged below the belt in pairs, the two second longitudinal folding rollers are symmetrically arranged along the axis of the second longitudinal folding cylinder in the same horizontal plane, a second pattern wheel parallel to the second longitudinal folding rollers is arranged below the second longitudinal folding rollers, and the second pattern wheel is arranged above the inner side of the belt.

Preferably, the second guide roller is provided with a first pressing wheel and/or a second pressing wheel, the lower end of the first pressing wheel is rotatably provided with a smooth wheel which is in contact with the paper tape, the lower end of the second pressing wheel is rotatably provided with a disc-shaped paper cutting knife, and the second guide roller is provided with a cutter relief groove which corresponds to the paper cutting knife; and the axes of the smooth wheel and the paper cutting knife are respectively parallel to the axis of the second guide roller.

A UV printing system comprises a roll paper feeding device, a tension control device, a printing tower, a UV drying device and the folding machine which are arranged in sequence; the printing tower comprises at least two printing units arranged along the longitudinal direction, and each printing unit comprises a transmission shaft, a plate cylinder and a printing cylinder; the UV drying device is arranged at the top of the printing tower and comprises two groups of UV driers which are perpendicular to the paper tape.

On the basis of the scheme, the two groups of UV dryers are arranged in parallel along the horizontal direction, the UV illumination directions are the same, and two paper guide rollers parallel to the paper tape are arranged above the two groups of UV dryers respectively.

Preferably, each group of UV dryers is in plurality and arranged in parallel and side by side in the vertical direction.

Preferably, a ventilating duct is arranged above the UV drying device, and a stair or a lifter is arranged on the side surface of the printing tower.

Preferably, the printing towers are at least two and are matched with a folding machine for use.

The invention has the beneficial effects that:

1. by adopting the rotary folding machine, the cutting, twice transverse folding and twice longitudinal folding of the paper can be realized, the processing requirements of various printed products can be met, and the application range is wide;

2. the whole set of processes of paper feeding, printing, drying and folding is arranged in one set of equipment by adopting a web paper tape, so that the finished product production of a printed product can be finished at one time, the paper path is shortened, and the printing efficiency is improved;

3. a plurality of printing units are arranged in a tower type, and the UV drying device is arranged at the top of the printing tower, so that the floor area of the equipment is reduced, and double-sided color printing can be realized; adopt UV drying device to carry out abundant drying to the paper, and need not additionally increase cooling and humidification device, equipment is simple, the installation and the operation of being convenient for.

Drawings

FIG. 1: a schematic structural diagram of the folding machine;

FIG. 2: the cross section structure of the center to the roll shaft is schematic;

FIG. 3: the mounting positions of the first pinch roller and the second pinch roller are schematically shown in the figure;

FIG. 4: the sectional structure schematic diagram of the first pinch roller;

FIG. 5: the cross section structure of the second pinch roller is schematically shown;

FIG. 6: a schematic cross-sectional structure diagram of the cutting roller;

FIG. 7: a cross-sectional structure schematic diagram of a folding needle roller;

FIG. 8: a schematic diagram of a double parallel folding process;

FIG. 9: the structure of the cross section of the double parallel folding rollers is schematic;

FIG. 10: a schematic structural view of a second longitudinal folding roller;

FIG. 11: a schematic diagram of a UV printing system structure;

FIG. 12: a schematic of a web drying path;

FIG. 13: 2 printing tower layout structure chart.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", etc., indicate orientations or positional relationships based on those shown in fig. 1, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

As shown in fig. 1 to 9, the folding machine 1 includes a top registration unit, a set square 12 for first longitudinal folding of a paper tape, guide rollers, a cutting cylinder 15, a folding pin cylinder 16, and a page storage cylinder 171, and adjacent guide rollers and cylinders rotate relative to each other in pairs. The top registration unit comprises a first fixed guide roller 111, a movable guide roller 112 and a second fixed guide roller 113, the movable guide roller 112 is used for adjusting the cutting position of the paper tape and keeping the paper tape in a proper tensioning state, the second fixed guide roller 113 is arranged at the top end of the triangular plate 12 in parallel, the paper tape passes through the triangular plate 12 to complete first longitudinal folding, and the guide roller is used for adjusting the tension of the paper tape. The guide rollers are arranged vertically to the second fixed guide roller 113 in the horizontal direction, and include two first guide rollers 131 arranged on two sides of the lower end of the triangular plate 12 and two second guide rollers 132 arranged below the two first guide rollers, preferably, the second guide rollers 132 are provided with a first pinch roller 1321 and/or a second pinch roller 1322, and the lower end of the first pinch roller 1321 is rotatably provided with a smooth wheel in contact with the paper tape for pressing the paper; a disc-shaped paper cutting knife is rotatably arranged at the lower end of the second pressing wheel 1322 so as to longitudinally cut the paper tape, and a cutter releasing groove at a position corresponding to the paper cutting knife is arranged on the second guide roller 132; the axes of the smoothing wheel and the paper cutter are parallel to the axis of the second guide roller 132, respectively. The cutting cylinder 15 is arranged below the second guide roller 132, the outer edge of the cutting cylinder is provided with a cutting knife 151 along the axial direction, the folding needle cylinder 16 and the cutting cylinder 15 are matched to rotate relatively, the outer edge of the folding needle cylinder 16 is provided with a puncturing needle 163 and a cutting groove 161 along the axial direction, the cutting groove 161 and the cutting knife 151 are correspondingly arranged, when a paper tape passes between the cutting cylinder 15 and the folding needle cylinder 16, the cutting knife 151 cuts the paper tape towards the cutting groove 161, the cutting is completed, and before the paper is cut by the blade, the puncturing needle 163 punctures the paper, so that the paper is attached to the surface of the folding needle cylinder 16. A first folding knife 162 is arranged in the cutting groove 161, the first folding knife 162 is arranged corresponding to a first jaw 1711 on the outer edge of the page storage cylinder 171, the folding needle cylinder 16 drives the paper to rotate continuously until the center of the page signature is opposite to the first jaw 1711 of the page storage cylinder 171, the first folding knife 162 pushes the page signature into the first jaw 1711 to complete the first transverse folding of the paper, and the pricking needle 163 retracts when the first jaw 1711 clamps the page signature. The first spline 173 and the conveyor belt 19 are disposed in order below the page storage cylinder 171 so that the page signature falls into the blades of the first spline 173 and then onto the conveyor belt 19 after rotating with the page storage cylinder 171. Preferably, the relative cylindrical ratio of the cutting cylinder 15, the tucker cylinder 16 and the storage cylinder 171 is 1:2: 2; the number of the cutting grooves 161 is 2, and the cutting grooves are respectively arranged corresponding to the positions of the cutting knives 151, and the inserting needles 163 are symmetrically arranged at the central positions between the adjacent grooves along the axis of the folding needle roller 16; the number of the first jaws 1711 is 2, when the folding pin roller 16 rotates half a turn, the cutting roller 15 rotates one turn and prepares for cutting paper again, before cutting, the second group of the inserting pins 163 opposite to the first group will insert the paper tape, after cutting, the cut single page is controlled by the first group and the second group of the inserting pins respectively, thus the cutting processing is continuously and repeatedly carried out, and the two groups of the inserting pins 163 and the cutting groove 161 correspond to the two first jaws 1711.

The folding machine can also complete the second transverse folding, as shown in fig. 2, 8 and 9, a central pair of rollers 14 is arranged between the first guide roller 131 and the second guide roller 132, and punching knives 141 are arranged on the central pair of rollers 14 at intervals along the axial direction; a double parallel folding roller 172 which is matched with the paper storage roller 171 and rotates relatively is arranged above the paper storage roller 171, and a gripper 1721 and a second folding knife 1722 are arranged at the outer edge of the double parallel folding roller 172; the relative cylindrical diameter ratio of the double parallel folding roller 172 to the page storage roller 171 is 1:2, the outer edge of the page storage roller 171 is provided with second jaws 1712 corresponding to the position of the second folding knife 1722, and the number of the second jaws 1712 is 2. The web, which has not yet been cut, is perforated with holes arranged intermittently in the transverse direction by the central counter-roller 14, after which the web is made to pass through the cutting and first transverse folding as described above, clamped in the first jaw 1711, the signature continues to rotate with its front edge facing the double parallel folding cylinder 172 and fixed by the jaws 1721, so that the signature rotates with the double parallel folding cylinder 172, the second folding blade 1722 in the double parallel folding cylinder 172 pushes the signature back into the second jaw 1712 of the storage cylinder 171, which then sends it to the first geneva 173 and places it on the conveyor belt 19 as described previously.

The folding machine can also complete a second longitudinal folding, as shown in fig. 1 and 10, a page delivery mechanism 182 is arranged on one side of the page storage cylinder 171 far away from the folding needle cylinder 16, the page delivery mechanism 182 is a belt wheel mechanism, wherein the belt is arranged along the direction vertical to the axis of the page storage cylinder 171, a second longitudinal folding cylinder 181 is arranged above the belt in parallel with the belt, a third folding knife 1811 is arranged on the outer edge of the second longitudinal folding cylinder 181 along the axis direction, second longitudinal folding nip rollers 183 are arranged below the belt in pairs, the two second longitudinal folding nip rollers 183 are symmetrically arranged along the axis of the second longitudinal folding cylinder 181 in the same horizontal plane, a second pattern wheel 184 parallel to the second longitudinal folding nip rollers 183 is arranged below the second longitudinal folding nip rollers 183, and the second pattern wheel 184 is arranged above the inner side of the belt 19. After the first transverse folding or the second transverse folding is completed, the page is sent to the second longitudinal folding roller 181 by the page conveying mechanism 182, pushed down between the two second longitudinal folding nip rollers 183 by the third folding knife 1811, clamped and driven by the second longitudinal folding nip rollers 183, and falls into the second pattern wheel 184 to complete the second longitudinal folding and fall onto the conveyor belt 19.

The present embodiment further includes a UV printing system as shown in fig. 11, which includes a web supply device 2, a tension control device 3, a printing tower 4, a UV drying device, and the above-described folder 1, which are arranged in sequence; the printing tower 4 comprises at least two printing units 41 arranged along the longitudinal direction, each printing unit 41 comprises a transmission shaft, a plate cylinder 42 and a printing cylinder 43, ink is printed on the surface of a paper between the two printing cylinders 43 through the plate cylinder 42 and the printing cylinder 43, and each printing unit 41 can finish printing of two colors of ink. The UV drying device is arranged at the top of the printing tower 4 and comprises two groups of UV dryers 51 which are perpendicular to the paper tape. One preferred drying method is to arrange two sets of UV dryers 51 symmetrically with respect to the paper tape, so as to directly dry the ink on both sides of the paper, save installation space, and shorten the time required for drying. Another preferred drying method is, as shown in fig. 12, two sets of UV dryers 51 are arranged in parallel in the horizontal direction, and the UV illumination directions are the same, two paper guide rollers 52 parallel to the paper tape are respectively arranged above the two sets of UV dryers 51, during the vertical rising process of the paper tape, the ink on one side of the paper tape is dried by one set of UV dryers 51, then the paper tape passes through a U-shaped path which is vertical, horizontal and vertical again by the two paper guide rollers 52, and when the paper tape is vertical again, the ink on the other side of the paper tape is dried by the other set of UV dryers 51, and the ink on the two sides of the paper tape is sequentially and respectively dried by the above structure, so that excessive moisture loss caused by simultaneous drying of the two sides is avoided, the quality of printed products can be improved, and the installation of an air cooling mechanism in the dryers is facilitated. If the printing speed is accelerated, the number of each group of UV driers 51 can be set to be a plurality of, and the UV driers are respectively arranged in parallel along the vertical direction to meet the drying requirement of the paper tape.

An air duct 7 is provided above the UV drying device, and harmful gas and hot air generated during printing and drying are discharged. The printing tower 4 is provided with the stair 6 or the lift in the side, is convenient for operating personnel to operate and overhaul.

Example 2

The difference between this embodiment and embodiment 1 is that, as shown in fig. 13, at least two printing towers 4 in the UV printing system are used with one folding machine 1 through multiple sets of top registration units above the folding machine 1, so as to meet the needs of multiple printed products and reduce the occupied space and the number of used devices.

The present invention has been described above by way of example, but the present invention is not limited to the above-described specific embodiments, and any modification or variation made based on the present invention is within the scope of the present invention as claimed.

Claims

1. A folding machine is characterized by comprising a top registration unit, a triangular plate (12) used for longitudinally folding a paper tape, a guide roller, a cutting roller (15), a folding needle roller (16) and a page storage roller (171), wherein the top registration unit comprises a first fixed guide roller (111), a movable guide roller (112) and a second fixed guide roller (113), the second fixed guide roller (113) is arranged at the top end of the triangular plate (12) in parallel, the guide roller is vertically arranged with the second fixed guide roller (113) in the horizontal direction and comprises two first guide rollers (131) arranged at two sides of the lower end of the triangular plate (12) and two second guide rollers (132) arranged below the two first guide rollers (131), the cutting roller (15) is arranged below the second guide rollers (132), a cutting knife (151) is arranged at the outer edge in the axial direction, and the folding needle roller (16) and the cutting roller (15) are matched to rotate relatively, a needle (163) and a cutting groove (161) are axially arranged on the outer edge of the folding needle roller (16), the cutting groove (161) is arranged corresponding to the cut-off knife (151), a first folding knife (162) is arranged in the cutting groove (161), the first folding knife (162) is arranged corresponding to a first jaw (1711) on the outer edge of the page storage roller (171), and a first spline (173) and a conveyor belt (19) are sequentially arranged below the page storage roller (171);

a center pair roller (14) is arranged between the first guide roller (131) and the second guide roller (132), and punching knives (141) are arranged on the center pair roller (14) at intervals along the axial direction; a double parallel folding roller (172) which is matched with the page storage roller (171) and rotates relatively is arranged above the page storage roller, and a gripper (1721) and a second folding knife (1722) are arranged at the outer edge of the double parallel folding roller (172); the relative cylindrical diameter ratio of the double parallel folding roller (172) to the page storage roller (171) is 1:2, the outer edge of the page storage roller (171) is provided with a second jaw (1712) corresponding to the position of the second folding knife (1722), and the number of the second jaw (1712) is 2.

2. A folder according to claim 1, characterised in that the relative cylindrical ratio of the cutting cylinder (15), the tucker cylinder (16) and the storage cylinder (171) is 1:2: 2; the number of the cutting grooves (161) is 2, the cutting grooves are respectively arranged corresponding to the positions of the cutting knives (151), and the inserting needles (163) are symmetrically arranged at the central positions between the adjacent grooves along the axis of the folding needle roller (16); the number of the first jaws (1711) is 2.

3. The folding machine as claimed in claim 1, characterized in that a page transfer mechanism (182) is arranged on the side of the storing cylinder (171) away from the folding needle cylinder (16), the page transfer mechanism (182) is a belt wheel mechanism, wherein the belt is arranged along the direction perpendicular to the axis of the storing cylinder (171), a second longitudinal folding cylinder (181) is arranged above the belt in parallel with the belt, a third folding knife (1811) is arranged on the outer edge of the second longitudinal folding cylinder (181) along the axis, a second longitudinal folding nip roller (183) is arranged below the belt in pairs, two second longitudinal folding nip rollers (183) are symmetrically arranged along the axis of the second longitudinal folding cylinder (181) in the same horizontal plane, a second pattern wheel (184) parallel with the second longitudinal folding nip roller (183) is arranged below the second longitudinal folding nip roller (183), and the second pattern wheel (184) is arranged above the inner side of the belt (19).

4. The folding machine as claimed in claim 1, characterized in that the second guide roller (132) is provided with a first pressing wheel (1321) and/or a second pressing wheel (1322), the lower end of the first pressing wheel (1321) is rotatably provided with a smooth wheel contacting with the paper tape, the lower end of the second pressing wheel (1322) is rotatably provided with a disc-shaped paper cutting knife, and the second guide roller (132) is provided with a cutter relief groove corresponding to the paper cutting knife; the axes of the smooth wheel and the paper cutting knife are respectively parallel to the axis of the second guide roller (132).

5. A UV printing system, characterized by comprising a web feeding device (2), a tension control device (3), a printing tower (4), a UV drying device and a folder (1) according to any one of claims 1 to 4, arranged in sequence; the printing tower (4) comprises at least two printing units (41) arranged along the longitudinal direction, each printing unit (41) comprises a transmission shaft, a plate cylinder (42) and a printing cylinder (43); the UV drying device is arranged at the top of the printing tower (4) and comprises two groups of UV dryers (51) which are perpendicular to the paper tape.

6. The UV printing system according to claim 5, wherein the two groups of UV dryers (51) are arranged in parallel along the horizontal direction, the UV illumination direction is the same, and two paper guide rollers (52) parallel to the paper tape are respectively arranged above the two groups of UV dryers (51).

7. A UV printing system according to claim 5, wherein each group of UV dryers (51) is in plurality and arranged in parallel side by side in a vertical direction.

8. UV printing system according to claim 5, characterized in that above the UV drying device is arranged a ventilation duct (7), and the printing tower (4) is laterally arranged with stairs (6) or elevators.

9. A UV printing system according to claim 5, wherein said printing towers (4) are at least two and are used with a folder (1).