CN107175906B - Large-format flexible plate mounting system and plate dismounting method thereof - Google Patents
Large-format flexible plate mounting system and plate dismounting method thereof Download PDFInfo
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- CN107175906B CN107175906B CN201710364356.7A CN201710364356A CN107175906B CN 107175906 B CN107175906 B CN 107175906B CN 201710364356 A CN201710364356 A CN 201710364356A CN 107175906 B CN107175906 B CN 107175906B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
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Abstract
The invention relates to a flexible plate mounting system, in particular to a large-format flexible plate mounting system and a plate dismounting method thereof. The plate loading roller rocker arm assembly comprises a wall plate, wherein a photo drum assembly, a plate loading roller rocker arm assembly and an upper cover sliding assembly are arranged in the wall plate, the upper cover sliding assembly is arranged above the photo drum assembly, and the plate loading roller rocker arm assembly controls the upper cover sliding assembly to incline. The automatic plate loading and unloading system for the large-breadth flexible plate enables the plate loading and unloading operation process to be greatly simplified, the whole set of plate unloading operation can be completed by a single person, the automation degree and the plate making production efficiency are greatly improved, the contact plate materials are reduced as much as possible, the plate material cleanliness is guaranteed, scratches are avoided, and the plate making quality is guaranteed.
Description
Technical Field
The invention relates to a flexible plate mounting system, in particular to a large-format flexible plate mounting system and a plate dismounting method thereof.
Background
The working principle of the plate making equipment is that a layer of black material with complete shading performance is compounded on the surface of a photosensitive resin layer, and the working principle of the plate making equipment is that ablation carving is carried out on a black shading layer by high-energy laser controlled by a computer, and the laser only ablates the black shading layer so as to expose the photosensitive resin, does not act on the photosensitive resin layer, and creates conditions for exposure.
The multilayer compounding characteristic of the photosensitive resin plate enables the photosensitive resin plate to have a certain thickness, the requirement on the cleanness of the plate surface is high, dust removal operation is carried out before laser engraving to ensure the cleanness of a black surface layer of the photosensitive resin plate, and the surface of the plate material cannot be scratched. The flexographic plate has certain flexibility, the plate surface should be kept flat as far as possible in the operation process without excessive bending, the plate is stretched to a certain extent after being installed on a light drum, the adjustment of the control parameters of the equipment software is compensated, and normal plate making and printing cannot be performed under the abnormal conditions of stretching deformation and the like caused by improper manual operation during plate installation. Consequently, the artifical participation or the contact plate material that should be as few as possible to the operation of flexography dress unloading, however to the plate material of big breadth, because its size is great, the handheld both sides of one-man operation inevitably cause the plate material middle part crooked, thereby can't guarantee the plate material because plate material self weight probably produces the tensile deformation of certain degree and levels, and the people lies in plate material one side and can't put into the edition head clamp with the edition head accuracy of opposite side is leveled. So the plate of big width is very difficult to accomplish dress version and unload the version operation by a single person, and in case the plate distortion is buckled and may influence follow-up exposure quality or even final printing process, if only arrange two people's cooperations for the operation of loading and unloading the version, that can waste manpower and materials undoubtedly, can increase manufacturing cost moreover. And a large-size plate loading and unloading platform is specially designed for large-format plates, which wastes a lot of waste for the overall design of a machine and damages the overall coordination of equipment.
Disclosure of Invention
The invention mainly solves the defects in the prior art, and provides a large-breadth flexible plate loading system and a large-breadth flexible plate unloading method, which have higher automation degree of loading and unloading by using the method, can automatically and smoothly complete plate loading and unloading operation only by little manual intervention, can ensure that the plates are flatly and uniformly loaded in place and adsorbed on a light drum without excessive plate contact in the plate loading and unloading process, and greatly simplify the plate loading and unloading process.
The technical problem of the invention is mainly solved by the following technical scheme:
a large-breadth flexible plate mounting system comprises a wall plate, wherein a smooth drum assembly, a plate mounting roller rocker arm assembly and an upper cover sliding assembly are arranged in the wall plate, the upper cover sliding assembly is arranged above the smooth drum assembly, and the plate mounting roller rocker arm assembly controls the upper cover sliding assembly to incline;
the optical drum assembly comprises an optical drum and a plate head shaft, the surface of the optical drum is provided with the plate head shaft distributed along the axial direction, a plate head pressing plate which is elastically opened and closed with the surface of the optical drum is arranged in the plate head shaft, and two side ends of the plate head shaft are respectively provided with a plate head rocker arm;
the plate loading roller rocker arm assembly comprises a plate loading roller rocker arm, a plate head opening driving shaft, a plate loading compression roller driving shaft and a plate head opening and closing rocker arm, the plate loading roller rocker arm is rotatably connected along the plate head opening driving shaft, one end of the plate loading roller rocker arm is embedded into a plate pressing roller, a driving cam is sleeved outside the plate loading compression roller driving shaft, the other end of the plate loading roller rocker arm is in fit distribution with the driving cam, the middle end of the plate head opening and closing rocker arm is in rotating positioning with a wall plate, one end of the plate head opening and closing rocker arm is in movable contact with the plate head rocker arm, a plate head opening and closing rocker arm driving cam is sleeved outside the plate head opening driving shaft, and the other end of the plate head opening and closing rocker arm is in fit distribution with the plate head opening and closing rocker arm driving cam;
the upper cover sliding assembly comprises an upper cover plate sliding along the wallboard, the front end of the upper cover plate is in movable contact with the optical drum, the upper cover plate performs left-right displacement along the wallboard, the left end of the upper cover plate is provided with a plate material adsorption device, and a feed inlet is formed between the upper cover plate and the optical drum.
Preferably, the plate head pressing plate is internally provided with a plate head shaft fixing block and a torsion spring fixing block, a plurality of torsion springs distributed at intervals are sleeved in the plate head shaft, one end of each torsion spring is fixed with the plate head shaft fixing block, the other end of each torsion spring is fixed with the torsion spring fixing block, two ends of the plate head shaft are respectively supported by a plate head rotating shaft and positioned with the optical drum, and a plate head bearing is arranged in the plate head rocker arm;
the plate head opening and closing rocker arm and the wall plate are elastically positioned through a tension spring, and the plate head opening and closing rocker arm is Z-shaped;
the upper cover plate in be equipped with the motion rack, the motion rack in be equipped with the control motion rack and carry out the upper cover motion gear of displacement, upper cover motion gear carry out the transmission through upper cover motion transition gear, the wallboard in be equipped with the gliding upper cover plate bearing of upper cover plate looks laminating, upper cover plate bearing establish in the upper cover rotation support swing arm, the upper cover rotation support swing arm carry out the transmission through upper cover rotation driving axle, upper cover motion transition gear carry out the transmission through upper cover motion driving axle.
Preferably, the printing plate pressing roller driving shaft, the printing plate head opening driving shaft, the upper cover rotating driving shaft and the upper cover moving driving shaft are respectively transmitted through a transmission assembly, the transmission assembly comprises a stepping motor, the stepping motor drives a driving gear to transmit, and a detection disc is arranged in the driving gear;
the upper cover moving gear is positioned with the wall board through an upper cover moving gear shaft, and the tail part of the wall board is provided with position sensors which are distributed corresponding to the upper cover moving transition gear.
Preferably, the stepping motor is arranged in the motor support, and the upper end of the motor support is provided with limit sensors which are distributed corresponding to the driving gear.
A plate unloading method of a large-format flexible plate mounting system is carried out according to the following steps:
assembly of components:
firstly, mounting a plate head pressing plate on a light drum, supporting and fixing a plate head front gauge, a plate head shaft fixing block and a plate head rotating shaft to an air groove-free area of the light drum, then supporting the plate head shaft through the fixing block and the rotating shaft, stringing a torsion spring between the plate head shaft fixing blocks, then fixing a plate head rocker arm to two ends of the plate head shaft, fixing the torsion spring fixing block to the plate head pressing plate, then fixing the plate head pressing plate to the plate head shaft, adjusting the position of the torsion spring and the left and right positions of the plate head shaft, and opening and releasing a plate head clamp to ensure that the plate head clamp can be closed under the torsion action of the torsion spring;
then installing a plate loading roller rocker arm assembly and a transmission assembly on a wallboard, ensuring that a cam rotates to the highest position after a plate head opening and closing rocker arm is installed and ensuring that the plate head is positioned at a specified plate unloading position by a photo drum, wherein the plate head opening and closing rocker arm is just positioned below a small bearing of the plate head rocker arm and can rotate to open a plate head clamp, and the plate head clamp can fall under the action of the tension of a tension spring after the release drive so as to be closed; after the plate loading roller rocker is installed, the driving cam can correspondingly act on the plate loading roller rocker when rotating, so that the plate pressing roller can be pressed down or lifted; when the stepping motor, the sensor and the detection disc are installed, the driving shaft is ensured to be exactly positioned at two zero positions of the sensor when rotating to the extreme position corresponding to the action;
mounting a front-rear moving part of an upper cover plate and an upper cover sliding assembly, mounting a left upper cover gear shaft fixing plate and a right upper cover gear shaft fixing plate, mounting an upper cover moving gear shaft, an upper cover moving driving shaft and an upper cover moving transition gear to ensure that all gears are tightly meshed, and mounting a position sensor on the upper cover gear shaft fixing plate; installing an upper cover sliding assembly, installing an upper cover rotating driving shaft, installing a left upper cover rotating supporting swing arm and a right upper cover rotating supporting swing arm on the rotating driving shaft, ensuring that gears on the rotating supporting swing arms are always in contact with the lower end of an upper cover plate, ensuring that the upper cover plate can be lifted to a horizontal position and inclined to the front end to just contact with a light drum, and finally installing a front-back movement and rotating movement driving motor and a worm and worm wheel to ensure that all parts are in good contact and are tightly meshed;
after the moving rack and the plate adsorption device are arranged on the upper cover plate, the moving gear of the upper cover is meshed with the rack, and the position sensor can detect corresponding signals when the upper cover moves to the front limit position and the rear limit position;
(II) debugging the assembly:
after the assembly of each component is finished, the components are tested in a subsection mode, the components are ensured to run normally, then continuous testing is carried out, the coordination action of the components is adjusted, the front-back movement of the upper cover plate is ensured to be normal, the upper cover plate is inclined at a proper angle, the plate can be adsorbed to prevent falling off when the upper cover plate is inclined, the opening of a plate head clamp and the normal pressing of the plate are ensured, and the plate pressing roller can be accurately pressed on the plate; when the plate is normally assembled and disassembled, the normal operation of each part is ensured;
(III) plate mounting operation:
the upper computer control equipment carries out plate loading operation, the upper cover plate is in a reset position before plate loading, a plate is placed on the upper cover plate, the edge of a plate head of the plate is aligned with a scale positioned on the housing, the position of the plate is adjusted according to the scale, the plate loading operation is started after the plate is placed, the optical drum starts to rotate and searches for a position of a plate head clamp, the optical drum continues to rotate after the position of the plate head clamp is determined, and the optical drum stops rotating when the plate head clamp is in a specified plate loading and unloading position; pressing down a plate-moving key after the adjustment of the optical drum is finished, starting a vacuum adsorption device on the surface of an upper cover plate to adsorb a plate and keep the plate not to be deviated, slightly lifting the upper cover plate and the plate under the action of a cam mechanism on the lower side of the cover plate, simultaneously controlling an upper cover plate movement driving shaft to rotate by a stepping motor, horizontally retreating the upper cover plate and the plate on the upper cover plate by a certain distance until the plate is right above a plate head clamp, then controlling the plate head clamp to be opened, then controlling the stepping motor to rotate by the upper cover plate to drive a cam to rotate so that the upper cover plate and the plate incline towards the optical drum, and stopping when the cam rotates to a sensor limiting position, just falling the plate and the upper cover plate near the plate head clamp on the optical drum; driving the upper cover plate to adsorb the plate materials and convey the plate materials forwards together by the upper cover sliding assembly until the plate head of the plate materials just extends into the plate head clamp and abuts against a front gauge of the plate head, then releasing the plate head clamp, closing a plate head pressing plate to tightly press the plate head of the plate materials, and closing a vacuum adsorption system of the upper cover plate;
after a plate head clamp is closed to press a plate head, a vacuum adsorption system for adsorbing a plate material on the surface of a photo drum starts to work, the photo drum rotates slightly to enable the plate head clamp to rotate under a press roller, then a plate loading roller rocker arm assembly drives the plate roller to press the plate material downwards, then the press roller presses the plate material and the vacuum adsorption effect of the surface of the photo drum enables the plate material to be tightly attached to the photo drum, the photo drum and the press roller continue to rotate to the position near the plate tail, the plate tail is fixed on the surface of the photo drum by using an adhesive tape, the plate tail is fixed, namely the press roller is lifted, an upper cover plate is lifted and reset to the initial position forwards, the plate loading is completed, and then scanning operation starts;
(IV) plate unloading operation:
after plate making is finished, the upper computer control equipment carries out plate unloading operation, firstly, the upper cover plate horizontally retreats to the limit position from the reset initial position, then the optical drum rotates to enable the plate tail to rotate to the appointed plate unloading position, then the plate pressing roller downwards presses the plate material, then the upper cover plate inclines towards the optical drum until the edge just falls on the optical drum, then the surface vacuum adsorption system of the optical drum stops working, after the plate tail fixing adhesive tape is removed, the plate tail portion slightly tilts, then the plate pressing roller presses the plate material to rotate along with the optical drum, the plate material is gradually transferred onto the cover plate from the optical drum, the optical drum rotates to the position close to the plate head clamp position, the plate pressing roller lifts up to give way the plate head, the optical drum continuously rotates to the plate head clamp appointed plate unloading position, the plate head clamp is controlled to be opened, meanwhile, the upper cover plate vacuum adsorption starts working, the upper cover plate material adsorbs the plate material to retreat a certain distance, so that the plate head leaves the plate head below the plate pressing plate, then the plate head clamp is re-closed, and the upper cover plate and the plate material are lifted to the horizontal position and move forwards until the reset position stops, and the plate unloading is completed.
The invention has the beneficial effects that: the automatic plate loading and unloading system for the large-breadth flexible plate enables the plate loading and unloading operation process to be greatly simplified, the whole set of plate unloading operation can be completed by a single person, the automation degree and the plate making production efficiency are greatly improved, the contact plate materials are reduced as much as possible, the plate material cleanliness is guaranteed, scratches are avoided, and the plate making quality is guaranteed.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic side view of the structure of FIG. 1;
FIG. 3 is a schematic diagram of the construction of the optical drum assembly of the present invention;
FIG. 4 is a schematic diagram of the present invention before plating;
FIG. 5 is a schematic diagram of the structure of the invention after plating;
fig. 6 is a schematic diagram of the structure of the upper cover plate of the present invention moving backwards.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1: as shown in fig. 1, 2, 3, 4, 5 and 6, a large-format flexible plate mounting system includes a wall plate 1, wherein a smooth drum assembly, a plate mounting roller swing arm assembly and an upper cover sliding assembly are arranged in the wall plate 1, the upper cover sliding assembly is arranged above the smooth drum assembly, and the plate mounting roller swing arm assembly controls the upper cover sliding assembly to incline;
the optical drum assembly comprises an optical drum 2 and a plate head shaft 3, the surface of the optical drum 2 is provided with the plate head shaft 3 which is distributed along the axial direction, a plate head pressing plate 4 which is elastically opened and closed with the surface of the optical drum 2 is arranged in the plate head shaft 3, and two side ends of the plate head shaft 3 are respectively provided with a plate head rocker arm 5;
the plate loading roller rocker arm assembly comprises a plate loading roller rocker arm 6, a plate head opening drive shaft 7, a plate loading compression roller drive shaft 8 and a plate head opening and closing rocker arm 9, the plate loading roller rocker arm 6 rotates along the plate head opening drive shaft 7, one end of the plate loading roller rocker arm 6 is embedded into a plate pressing roller 10, a drive cam 11 is sleeved outside the plate loading compression roller drive shaft 8, the other end of the plate loading roller rocker arm 6 is in fit distribution with the drive cam 11, the middle end of the plate head opening and closing rocker arm 9 is in rotary positioning with a wall plate 1, one end of the plate head opening and closing rocker arm 9 is in movable contact with the plate head rocker arm 5, a plate head opening and closing rocker arm drive cam 12 is sleeved outside the plate head opening drive shaft 7, and the other end of the plate head opening and closing rocker arm 9 is in fit distribution with the plate head opening and closing rocker arm drive cam 12;
upper cover sliding assembly including carrying out gliding upper cover plate 13 along wallboard 1, upper cover plate 13 front end and smooth drum 2 looks movable contact connect, upper cover plate 13 carry out left right side displacement along wallboard 1, upper cover plate 13's left end be equipped with version material adsorption equipment 14, upper cover plate 13 and smooth drum 2 within a definite time form feed inlet 15.
The plate head pressing plate 4 is internally provided with a plate head shaft fixing block 16 and a torsion spring fixing block 17, a plurality of torsion springs 18 distributed at intervals are sleeved in the plate head shaft 3, one end of each torsion spring 18 is fixed with the plate head shaft fixing block 16, the other end of each torsion spring 18 is fixed with the torsion spring fixing block 17, two ends of the plate head shaft 3 are respectively positioned with the optical drum 2 through a plate head rotating shaft support 19, and a plate head bearing 20 is arranged in the plate head rocker arm 5;
the plate head opening and closing rocker arm 9 and the wall plate 1 are elastically positioned through a tension spring 21, and the plate head opening and closing rocker arm 9 is Z-shaped;
the improved wall panel structure is characterized in that a moving rack 22 is arranged in the upper cover plate 13, an upper cover moving gear 23 for controlling the moving rack 22 to move is arranged in the moving rack 22, the upper cover moving gear 23 is driven by an upper cover moving transition gear 24, an upper cover plate bearing 25 which is attached to and slides with the upper cover plate 13 is arranged in the wall panel 1, the upper cover plate bearing 25 is arranged in an upper cover rotating support swing arm 26, the upper cover rotating support swing arm 26 is driven by an upper cover rotating driving shaft 27, and the upper cover moving transition gear 24 is driven by an upper cover moving driving shaft 35.
The plate loading press roller driving shaft 8, the plate head opening driving shaft 7, the upper cover rotating driving shaft 27 and the upper cover moving driving shaft 35 are respectively transmitted through a transmission assembly, the transmission assembly comprises a stepping motor 28, the stepping motor 28 drives a driving gear 29 to transmit, and a detection disc 30 is arranged in the driving gear 29;
the upper cover moving gear 23 is positioned with the wall board 1 through an upper cover moving gear shaft 31, and the tail part of the wall board 1 is provided with position sensors 32 which are distributed corresponding to the upper cover moving transition gear 24.
The stepping motor 28 is arranged in a motor bracket 33, and the upper end of the motor bracket 33 is provided with a limit sensor 34 which is distributed corresponding to the driving gear 29.
A plate unloading method of a large-format flexible plate mounting system is carried out according to the following steps:
(I) assembly of components:
firstly, mounting a plate head pressing plate on a light drum, supporting and fixing a plate head front gauge, a plate head shaft fixing block and a plate head rotating shaft to an air groove-free area of the light drum, then supporting the plate head shaft through the fixing block and the rotating shaft, stringing a torsion spring between the plate head shaft fixing blocks, then fixing a plate head rocker arm to two ends of the plate head shaft, fixing the torsion spring fixing block to the plate head pressing plate, then fixing the plate head pressing plate to the plate head shaft, adjusting the position of the torsion spring and the left and right positions of the plate head shaft, and opening and releasing a plate head clamp to ensure that the plate head clamp can be closed under the torsion action of the torsion spring;
then installing a plate loading roller rocker arm assembly and a transmission assembly on a wallboard, ensuring that a cam rotates to the highest position after a plate head opening and closing rocker arm is installed and ensuring that the plate head is positioned at a specified plate unloading position by a photo drum, wherein the plate head opening and closing rocker arm is just positioned below a small bearing of the plate head rocker arm and can rotate to open a plate head clamp, and the plate head clamp can fall under the action of the tension of a tension spring after the release drive so as to be closed; after the plate loading roller rocker is installed, the driving cam can be correspondingly acted on the plate loading roller rocker when rotating, so that the plate pressing roller is pressed down or lifted; in addition, when the stepping motor, the sensor and the detection disc are installed, the driving shaft is ensured to be exactly positioned at two zero positions of the sensor when rotating to the extreme position corresponding to the action;
mounting a front-rear moving part of an upper cover plate and an upper cover sliding assembly, mounting a left upper cover gear shaft fixing plate and a right upper cover gear shaft fixing plate, mounting an upper cover moving gear shaft, an upper cover moving driving shaft and an upper cover moving transition gear to ensure that all gears are tightly meshed, and mounting a position sensor on the upper cover gear shaft fixing plate; installing an upper cover sliding assembly, installing an upper cover rotating driving shaft, installing a left upper cover rotating supporting swing arm and a right upper cover rotating supporting swing arm on the rotating driving shaft, ensuring that gears on the rotating supporting swing arms are always in contact with the lower end of an upper cover plate, ensuring that the upper cover plate can be lifted to a horizontal position and inclined to the front end to just contact with a light drum, and finally installing a front-back movement and rotating movement driving motor and a worm and worm wheel to ensure that all parts are in good contact and are tightly meshed;
after the moving rack and the plate adsorption device are arranged on the upper cover plate, the moving gear of the upper cover is meshed with the rack, and the position sensor can detect corresponding signals when the upper cover moves to the front limit position and the rear limit position;
(II) debugging the assembly:
after the assembly of each component is finished, the components are tested in a subsection mode, the components are ensured to run normally, then continuous testing is carried out, the coordination action of the components is adjusted, the front-back movement of the upper cover plate is ensured to be normal, the upper cover plate is inclined at a proper angle, the plate can be adsorbed to prevent falling off when the upper cover plate is inclined, the opening of a plate head clamp and the normal pressing of the plate are ensured, and the plate pressing roller can be accurately pressed on the plate; when the plate is normally assembled and disassembled, the normal operation of each part is ensured;
(III) plate mounting operation:
the upper computer control equipment carries out plate loading operation, the upper cover plate is in a reset position before plate loading, a plate is placed on the upper cover plate, the edge of a plate head of the plate is aligned with a scale positioned on the housing, the position of the plate is adjusted according to the scale, the plate loading operation is started after the plate is placed, the optical drum starts to rotate and searches for a position of a plate head clamp, the optical drum continues to rotate after the position of the plate head clamp is determined, and the optical drum stops rotating when the plate head clamp is in a specified plate loading and unloading position; pressing down a plate-moving key after the adjustment of the optical drum is finished, wherein a vacuum adsorption device on the surface of an upper cover plate starts to work to adsorb a plate material and keep the plate material not to deviate, then the upper cover plate and the plate material are slightly lifted under the action of a cam mechanism on the lower side of the cover plate, and simultaneously a stepping motor controls an upper cover movement driving shaft to rotate, so that the upper cover plate and the plate material on the upper cover plate horizontally retreat for a certain distance until the position is right above a plate head clamp; driving the upper cover plate to adsorb the plate materials and convey the plate materials forwards together by the upper cover sliding assembly until the plate head of the plate materials just extends into the plate head clamp and abuts against a front gauge of the plate head, then releasing the plate head clamp, closing a plate head pressing plate to tightly press the plate head of the plate materials, and closing a vacuum adsorption system of the upper cover plate;
after a plate head clamp is closed to press a plate head, a vacuum adsorption system for adsorbing a plate material on the surface of a photo drum starts to work, the photo drum rotates slightly to enable the plate head clamp to rotate under a press roller, then a plate loading roller rocker arm assembly drives the plate roller to press the plate material downwards, then the press roller presses the plate material and the vacuum adsorption effect of the surface of the photo drum enables the plate material to be tightly attached to the photo drum, the photo drum and the press roller continue to rotate to the position near the plate tail, the plate tail is fixed on the surface of the photo drum by using an adhesive tape, the plate tail is fixed, namely the press roller is lifted, an upper cover plate is lifted and reset to the initial position forwards, the plate loading is completed, and then scanning operation starts;
(IV) plate unloading operation:
after the plate making is finished, the upper computer control equipment carries out plate unloading operation, firstly, the upper cover plate horizontally retreats to the limit position from the reset initial position, then the optical drum rotates to enable the plate tail to rotate to the appointed plate unloading position, then the plate pressing roller presses the plate material downwards, then the upper cover plate inclines towards the optical drum until the edge just falls on the optical drum, at the same time, the surface vacuum adsorption system of the optical drum stops working, after the plate tail fixing adhesive tape is removed, the tail part of the plate slightly tilts up, then the plate pressing roller presses the plate material to rotate along with the optical drum, the plate material is gradually transferred onto the cover plate from the optical drum, the optical drum rotates to the position close to the plate head clamp, the plate pressing roller lifts up to leave the plate head, the optical drum continues to rotate to the plate head clamp appointed plate unloading position, the plate head clamp is controlled to be opened, simultaneously, the upper cover plate vacuum adsorption starts working, the upper cover plate material retreats together by a certain distance to enable the plate head of the plate material to leave the part below the plate head pressing plate clamp, then the plate head clamp is closed again, and lifting the upper cover plate and the plate together to a horizontal position and moving forwards until the plate stops at a reset position, thereby completing plate unloading.
Claims (5)
1. A large-format flexible plate mounting system is characterized in that: the plate loading device comprises a wall plate (1), wherein a drum assembly, a plate loading roller rocker arm assembly and an upper cover sliding assembly are arranged in the wall plate (1), the upper cover sliding assembly is arranged above the drum assembly, and the plate loading roller rocker arm assembly controls the upper cover sliding assembly to incline;
the optical drum assembly comprises an optical drum (2) and a plate head shaft (3), the surface of the optical drum (2) is provided with the plate head shaft (3) which is distributed along the axial direction, a plate head pressing plate (4) which is elastically opened and closed with the surface of the optical drum (2) is arranged in the plate head shaft (3), and two side ends of the plate head shaft (3) are respectively provided with a plate head rocker arm (5);
the plate loading roller rocker arm component comprises a plate loading roller rocker arm (6), a plate head opening driving shaft (7), a plate loading press roller driving shaft (8) and a plate head opening and closing rocker arm (9), the plate loading roller rocker arm (6) is rotationally connected along a plate head opening driving shaft (7), one end of the plate loading roller rocker arm (6) is embedded into the plate pressing roller (10), a driving cam (11) is sleeved outside the plate loading pressing roller driving shaft (8), the other end of the plate loading roller rocker arm (6) is attached to and distributed on the driving cam (11), the middle end of the plate head opening and closing rocker arm (9) is positioned with the wall plate (1) in a rotating way, one end of the plate head opening and closing rocker arm (9) is movably contacted with the plate head rocker arm (5), a plate head opening and closing rocker arm driving cam (12) is sleeved outside the plate head opening driving shaft (7), the other end of the plate head opening and closing rocker arm (9) is attached to and distributed on a plate head opening and closing rocker arm driving cam (12);
upper cover slip subassembly include and carry out gliding upper cover plate (13) along wallboard (1), the front end of upper cover plate (13) and smooth drum (2) looks movable contact connect, upper cover plate (13) carry out left right side displacement along wallboard (1), the left end of upper cover plate (13) be equipped with version material adsorption equipment (14), upper cover plate (13) and smooth drum (2) between form feed inlet (15).
2. The large format flexographic system of claim 1, wherein: the plate head pressing plate is characterized in that a plate head shaft fixing block (16) and a torsion spring fixing block (17) are arranged in the plate head pressing plate (4), a plurality of torsion springs (18) distributed at intervals are sleeved in the plate head shaft (3), one end of each torsion spring (18) is fixed to the plate head shaft fixing block (16), the other end of each torsion spring (18) is fixed to the torsion spring fixing block (17), two ends of the plate head shaft (3) are respectively positioned with the optical drum (2) through a plate head rotating shaft support (19), and a plate head bearing (20) is arranged in the plate head rocker arm (5);
the plate head opening and closing rocker arm (9) is elastically positioned with the wall plate (1) through a tension spring (21), and the plate head opening and closing rocker arm (9) is Z-shaped;
upper cover plate (13) in be equipped with motion rack (22), motion rack (22) in be equipped with control motion rack (22) and carry out upper cover motion gear (23) that the displacement was carried out, upper cover motion gear (23) carry out the transmission through upper cover motion transition gear (24), wallboard (1) in be equipped with and laminate gliding upper cover plate bearing (25) mutually with upper cover plate (13), upper cover plate bearing (25) establish in upper cover rotation support swing arm (26), upper cover rotation support swing arm (26) carry out the transmission through upper cover rotation drive axle (27), upper cover motion transition gear (24) carry out the transmission through upper cover motion drive axle (35).
3. The large format flexographic system of claim 2, wherein: the plate loading press roller driving shaft (8), the plate head opening driving shaft (7), the upper cover rotating driving shaft (27) and the upper cover moving driving shaft (35) are respectively driven by a transmission assembly, the transmission assembly comprises a stepping motor (28), the stepping motor (28) drives a driving gear (29) to transmit, and a detection disc (30) is arranged in the driving gear (29);
the upper cover moving gear (23) is positioned with the wall plate (1) through an upper cover moving gear shaft (31), and position sensors (32) distributed corresponding to the upper cover moving transition gear (24) are arranged at the tail part of the wall plate (1).
4. The large format flexographic system of claim 3, wherein: the stepping motor (28) is arranged in a motor support (33), and the upper end of the motor support (33) is provided with limit sensors (34) which are distributed corresponding to the driving gear (29).
5. A method of plate removal using the large-format flexographic plate setting system of claim 4, comprising the steps of:
assembly of components:
firstly, mounting a plate head pressing plate on a light drum, supporting and fixing a plate head front gauge, a plate head shaft fixing block and a plate head rotating shaft to an air groove-free area of the light drum, then supporting the plate head shaft through the plate head shaft fixing block and the plate head rotating shaft, stringing a torsion spring between the plate head shaft fixing blocks, then fixing a plate head rocker arm to two ends of the plate head shaft, fixing the torsion spring fixing block to the plate head pressing plate, then fixing the plate head pressing plate to the plate head shaft, adjusting the position of the torsion spring and the left and right positions of the plate head shaft, and opening and releasing a plate head clamp to ensure that the plate head clamp can be closed under the torsion action of the torsion spring;
then installing a plate loading roller rocker arm assembly and a transmission assembly on a wallboard, ensuring that a cam rotates to the highest position after a plate head opening and closing rocker arm is installed and ensuring that the plate head is positioned at a specified plate unloading position by a photo drum, wherein the plate head opening and closing rocker arm is just positioned below a small bearing of the plate head rocker arm and can rotate to open a plate head clamp, and the plate head clamp can fall under the action of the tension of a tension spring after the release drive so as to be closed; after the plate loading roller rocker is installed, the driving cam can be correspondingly acted on the plate loading roller rocker when rotating, so that the plate pressing roller is pressed down or lifted; when the stepping motor, the sensor and the detection disc are installed, the driving shaft is ensured to be exactly positioned at two zero positions of the sensor when rotating to the extreme position corresponding to the action;
mounting a front-rear moving part of an upper cover plate and an upper cover sliding assembly, mounting a left upper cover gear shaft fixing plate and a right upper cover gear shaft fixing plate, mounting an upper cover moving gear shaft, an upper cover moving driving shaft and an upper cover moving transition gear to ensure that all gears are tightly meshed, and mounting a position sensor on the upper cover gear shaft fixing plate; installing an upper cover sliding assembly, installing an upper cover rotating driving shaft, then installing a left upper cover rotating supporting swing arm and a right upper cover rotating supporting swing arm on the upper cover rotating driving shaft, ensuring that gears on the left upper cover rotating supporting swing arm and the right upper cover rotating supporting swing arm are always in contact with the lower end of an upper cover plate, ensuring that the upper cover plate can be lifted to a horizontal position and can be inclined to the front end to just contact with a light drum, and finally installing a forward and backward movement and rotation movement driving motor and a worm and worm wheel, ensuring that all parts are in good contact and are tightly meshed;
after the moving rack and the plate adsorption device are arranged on the upper cover plate, the moving gear of the upper cover is meshed with the rack, and the position sensor can detect corresponding signals when the upper cover moves to the front limit position and the rear limit position;
(II) debugging the assembly:
after the assembly of each component is finished, the components are tested in a subsection mode, the components are ensured to run normally, then continuous testing is carried out, the coordination action of the components is adjusted, the front-back movement of the upper cover plate is ensured to be normal, the upper cover plate is inclined at a proper angle, the plate can be adsorbed to prevent falling off when the upper cover plate is inclined, the opening of a plate head clamp and the normal pressing of the plate are ensured, and the plate pressing roller can be accurately pressed on the plate; when the plate is normally assembled and disassembled, the normal operation of each part is ensured;
(III) plate mounting operation:
the upper computer control equipment carries out plate loading operation, the upper cover plate is in a reset position before plate loading, a plate is placed on the upper cover plate, the edge of a plate head of the plate is aligned with a scale positioned on the housing, the position of the plate is adjusted according to the scale, the plate loading operation is started after the plate is placed, the optical drum starts to rotate and searches for a position of a plate head clamp, the optical drum continues to rotate after the position of the plate head clamp is determined, and the optical drum stops rotating when the plate head clamp is in a specified plate loading and unloading position; pressing down a plate-moving key after the adjustment of the optical drum is finished, starting a vacuum adsorption device on the surface of an upper cover plate to adsorb a plate and keep the plate not to be deviated, slightly lifting the upper cover plate and the plate under the action of a cam mechanism on the lower side of the cover plate, simultaneously controlling an upper cover plate movement driving shaft to rotate by a stepping motor, horizontally retreating the upper cover plate and the plate on the upper cover plate by a certain distance until the plate is right above a plate head clamp, then controlling the plate head clamp to be opened, then controlling the stepping motor to rotate by the upper cover plate to drive a cam to rotate so that the upper cover plate and the plate incline towards the optical drum, and stopping when the cam rotates to a sensor limiting position, just falling the plate and the upper cover plate near the plate head clamp on the optical drum; driving the upper cover plate to adsorb the plate materials and convey the plate materials forwards together by the upper cover sliding assembly until the plate head of the plate materials just extends into the plate head clamp and abuts against a front gauge of the plate head, then releasing the plate head clamp, closing a plate head pressing plate to tightly press the plate head of the plate materials, and closing a vacuum adsorption system of the upper cover plate;
after a plate head clamp is closed to press a plate head, a vacuum adsorption system for adsorbing a plate material on the surface of a photo drum starts to work, the photo drum rotates slightly to enable the plate head clamp to rotate under a press roller, then a plate loading roller rocker arm assembly drives the plate roller to press the plate material downwards, then the press roller presses the plate material and the vacuum adsorption effect of the surface of the photo drum enables the plate material to be tightly attached to the photo drum, the photo drum and the press roller continue to rotate to the position near the plate tail, the plate tail is fixed on the surface of the photo drum by using an adhesive tape, the plate tail is fixed, namely the press roller is lifted, an upper cover plate is lifted and reset to the initial position forwards, the plate loading is completed, and then scanning operation starts;
(IV) plate unloading operation:
after plate making is finished, the upper computer control equipment carries out plate unloading operation, firstly, the upper cover plate horizontally retreats to the limit position from the reset initial position, then the optical drum rotates to enable the plate tail to rotate to the appointed plate unloading position, then the plate pressing roller downwards presses the plate material, then the upper cover plate inclines towards the optical drum until the edge just falls on the optical drum, then the surface vacuum adsorption system of the optical drum stops working, after the plate tail fixing adhesive tape is removed, the plate tail portion slightly tilts, then the plate pressing roller presses the plate material to rotate along with the optical drum, the plate material is gradually transferred onto the cover plate from the optical drum, the optical drum rotates to the position close to the plate head clamp position, the plate pressing roller lifts up to give way the plate head, the optical drum continuously rotates to the plate head clamp appointed plate unloading position, the plate head clamp is controlled to be opened, meanwhile, the upper cover plate vacuum adsorption starts working, the upper cover plate material adsorbs the plate material to retreat a certain distance, so that the plate head leaves the plate head below the plate pressing plate, then the plate head clamp is re-closed, and the upper cover plate and the plate material are lifted to the horizontal position and move forwards until the reset position stops, and the plate unloading is completed.
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| CN201710364356.7A CN107175906B (en) | 2017-05-22 | 2017-05-22 | Large-format flexible plate mounting system and plate dismounting method thereof |
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| CN201710364356.7A CN107175906B (en) | 2017-05-22 | 2017-05-22 | Large-format flexible plate mounting system and plate dismounting method thereof |
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| CN107175906A CN107175906A (en) | 2017-09-19 |
| CN107175906B true CN107175906B (en) | 2022-08-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3530461B1 (en) | 2018-02-22 | 2020-08-26 | Heidelberger Druckmaschinen AG | Method for changing printing plates on a cylinder and printing cylinder with checkvalve in the hydraulik line connected to the clamp device |
| CN108556458B (en) * | 2018-03-26 | 2023-10-27 | 杭州科雷机电工业有限公司 | Double-plate computer direct plate making machine and operation method thereof |
| CN113954501A (en) * | 2021-11-11 | 2022-01-21 | 杭州科雷机电工业有限公司 | Automatic flexible plate loading and unloading system with fixed circumference and large width and operation method thereof |
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Address after: Hangzhou City, Zhejiang province 311215, Xiaoshan economic and Technological Development Zone Road No. 875 Applicant after: HANGZHOU CRON MACHINERY & ELECTRONICS Co.,Ltd. Address before: Hangzhou City, Zhejiang province 311200, Xiaoshan economic and Technological Development Zone Road No. 99 Applicant before: HANGZHOU CRON MACHINERY & ELECTRONICS Co.,Ltd. |
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