CN107097510B - Automatic plate loading and unloading structure of flexible plate and plate loading and unloading method thereof - Google Patents
Automatic plate loading and unloading structure of flexible plate and plate loading and unloading method thereof Download PDFInfo
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- CN107097510B CN107097510B CN201710365400.6A CN201710365400A CN107097510B CN 107097510 B CN107097510 B CN 107097510B CN 201710365400 A CN201710365400 A CN 201710365400A CN 107097510 B CN107097510 B CN 107097510B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
Abstract
The invention relates to a plate loading and unloading structure, in particular to an automatic plate loading and unloading structure of a flexible plate and a plate loading and unloading method thereof. The plate head clamp assembly and the plate tail clamp assembly are controlled through an automatic loading and unloading assembly. The utility model provides an automatic dress of flexographic plate unloads version structure and unload version method and compare in traditional manual work dress version, the sticky tape glues the version, this automatic dress unloads version system has improved the degree of automation of loading and unloading version, the loading and unloading flow has greatly been simplified, do not need too much contact plate material of people or smooth drum, guarantee that the plate material is clean, need not any sticky tape and paste, prevent the improper operation fish tail smooth drum and plate material, the two version of mechanical type press from both sides the structure can firmly fix the plate material on smooth drum, prevent that the plate material from removing or take place to fly serious accidents such as version. The automatic plate loading and unloading system enables plate loading to be extremely simple and efficient, shortens the whole plate making time, greatly improves the production efficiency and improves the plate making success rate.
Description
Technical Field
The invention relates to a plate loading and unloading structure, in particular to an automatic plate loading and unloading structure of a flexible plate and a plate loading and unloading method thereof.
Background
The traditional flexography process flow is more complicated than offset printing technology, the flexography needs to pass through a plurality of complicated steps from plate sending before printing to final on-press printing, often takes a long time, along with the improvement of printing technology, the plate making can be carried out by utilizing the computer laser direct plate making technology, and then the plate making process is further completed by the further processing of traditional equipment such as an exposure machine, a plate washing machine and the like.
Although the plate making process is simplified and the time is saved in the process, a great deal of time is still spent only in plate loading and unloading operation in the link of computer-to-plate making, because the existing plate making equipment still adopts the backward mode of plate unloading by a human tool, the plate needs to be stuck on a smooth drum by an adhesive tape manually when being fixed, and the adhesive tape is removed after the plate making is finished. Such plate-making and plate-removing operations have a great risk to the plate-making process, because the manual operation process needs to contact the plate material and the smooth drum many times, especially when the plate material is pasted by the adhesive tape, the cleanliness requirement of the flexible plate material is higher, and the more times people contact the plate material, the more easily dirty plate is caused, and the smooth drum or the plate material can be scratched in the operation process, and the final printing quality can be influenced by small errors. And even if skilled platemakers need a certain time for manual plate loading and unloading, the automation degree of manual plate loading and unloading is low, so that the plate making process is more complicated, a large amount of time and cost are consumed, and plate making failure caused by human negligence is easy to occur, so that a good plate loading and unloading method is particularly important for the success of plate making.
Disclosure of Invention
The invention mainly solves the defects in the prior art, and provides a flexible automatic plate loading and unloading structure and a flexible automatic plate loading and unloading method, wherein the plate loading and unloading operation of plate making equipment can be automatically completed without manual intervention, the plate making equipment is matched with a perfect double-plate clamp structure under the accurate control of host computer software, and the plate loading and unloading operation can be automatically completed in a very short time without manually contacting plate materials or optical drums in the plate loading and unloading process, so that the process requirements of the plate making equipment are completely met.
The technical problem of the invention is mainly solved by the following technical scheme:
an automatic plate loading and unloading structure of a flexible plate comprises a wall plate, wherein a light drum is arranged in the wall plate, a plate head clamp assembly and a plate tail clamp assembly are arranged on the surface of the light drum, and the plate head clamp assembly and the plate tail clamp assembly are controlled by the automatic loading and unloading assembly;
the plate head clamp assembly comprises a plate head shaft, a plate head pressing plate is arranged in the plate head shaft, plate head rocker arms are respectively arranged at two side ends of the plate head shaft, and the plate head rocker arms control the plate head pressing plate to open and close;
the plate tail clamp assembly comprises a plate tail pressing plate and a plate tail shaft receiver, wherein plate tail rocker arms are respectively arranged at two side ends of the plate tail pressing plate, a plurality of air grooves and sliding grooves are formed in the surface of the optical drum and are respectively distributed corresponding to the plate head pressing plate, the air grooves are sealed through air groove sealing heads, a plate tail pressing strip is arranged in each sliding groove, and the lower end of the plate tail shaft receiver is embedded in the plate tail pressing strip in a sliding mode;
The automatic loading and unloading assembly comprises a plate pressing roller, a plate loading roller rocker arm, a plate loading roller driving cam shaft, a plate tail opening and closing gear and a plate head opening and closing gear, one end of the plate loading roller rocker arm is fixed with the plate pressing roller, the other end of the plate loading roller rocker arm is fixed with the plate tail opening and closing main gear shaft, the plate loading roller rocker arm is internally provided with a rocker arm bearing, a driving cam which is jointed with the rocker arm bearing is sleeved outside the plate loading roller driving cam shaft, the plate loading roller drives the cam shaft to rotate to drive the plate pressing roller to be attached to the surface of the optical drum, the plate tail opening and closing main gear shaft drives the transmission gear to rotate, the plate head opening and closing gear is internally provided with a plate head opening and closing rocker arm for controlling a plate head pressing plate to open and close, and the plate tail opening and closing gear and the plate head opening and closing gear are synchronously driven through a transmission gear.
Preferably, the plate head shaft is sleeved with a plurality of torsion springs which are distributed at intervals, the plate head pressing plate is provided with a plate head shaft fixing block and a torsion spring fixing block, 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, the surface of the optical drum is provided with a front gauge matched and connected with the plate head pressing plate, and the two ends of the plate head shaft are fixed with the optical drum through plate head rotating supports; the plate head rocker arm is internally provided with a plate head bearing which is movably opened and closed with the plate head opening and closing rocker arm, the plate tail rocker arm is internally provided with a plate tail bearing which is movably opened and closed with the plate tail opening and closing rocker arm, and the plate tail rocker arm is elastically connected with the optical drum through a tension spring;
And the two side ends of the optical drum are respectively provided with a plate tail side plate, and a plate tail shaft seat fixed with the plate tail pressing plate is arranged in the plate tail side plate.
Preferably, the number of the plate head opening and closing gears is two, and the two plate head opening and closing gears are distributed at intervals.
A plate loading and unloading method of an automatic plate loading and unloading structure of a flexible plate comprises the following steps:
installing a plate head clamp, a plate tail clamp and a plate installing roller:
mounting a plate head clamp, namely, firstly, supporting and fixing a plate head shaft fixing block, a front gauge and a plate head rotating shaft in an air-groove-free area of a light drum, then, enabling the plate head shaft to sequentially pass through the plate head shaft for rotating and supporting, a torsion spring and the plate head shaft fixing block, fixing the torsion spring fixing block to a plate head pressing plate after the position of the plate head shaft is adjusted, then, fixing the plate head pressing plate on the plate head shaft, and then, fixing a plate head rocker arm to two ends of the plate head shaft;
the installation of the plate tail clamp firstly fixes a plate tail pressing strip in a sliding groove on a photo drum, a plate tail shaft is embedded on the plate tail pressing strip, then plate tail side plates on two sides of the photo drum are fixed, a plate tail shaft seat is fixed on the plate tail side plates, the plate tail pressing plate is placed, the upper end of the plate tail shaft and the upper end of the plate tail shaft seat extend into the plate tail pressing plate, a cylindrical pin penetrates through the plate tail shaft seat and the upper end of the plate tail shaft seat, and one end of the flat wire of the cylindrical pin is tightly pressed by a screw; fixing the plate tail rocker arm to two ends of the plate tail pressure plate, hooking one end of a tension spring to one end of the plate tail rocker arm, and hooking the other end of the tension spring to a fixing column on a plate tail side plate;
After a plate head clamp and a plate tail clamp are arranged on a light drum, a driving motor and a limit sensor are arranged on the outer side of a wall plate, a plate head and plate tail driving gear is arranged on the inner side of the wall plate, a plate head and plate tail opening and closing rocker arm is fixed on a corresponding gear, a plate loading roller rocker arm is rotationally fixed on a plate tail opening and closing main gear shaft, a plate pressing roller is embedded into the other end of the rocker arm, a rocker arm bearing is arranged on the plate loading roller rocker arm, a driving cam is arranged on a plate loading roller driving cam shaft, and finally a turnover plate is arranged between two wall plates;
(II) debugging the system:
the plate head clamp and the plate tail clamp are respectively rotated to a specified device plate unloading position, then the driving shaft is rotated, so that the plate head opening and closing rocker arm and the plate tail opening and closing rocker arm are pressed downwards, the opening and closing rocker arm can be just pressed on a plate tail bearing on the plate head rocker arm and the plate tail rocker arm, the plate head clamp and the plate tail clamp can be opened, when the plate head and the plate tail opening and closing rocker arm are lifted, the plate head clamp can be closed under the torsion action of a torsion spring, and the plate tail clamp can be closed under the tension action of a tension spring; then, the plate tail clamp is kept in an open state, and the optical drum is rotated to ensure that the plate tail clamp can smoothly slide on the optical drum; then, the plate loading roller is rotated to drive the cam shaft, so that the plate pressing roller can be pressed on the drum, and the plate pressing roller can be lifted by reversely rotating the plate loading roller to drive the cam shaft;
Then adjusting the zero position of a sensor detection disc, adjusting the zero position of a plate tail clamp, firstly rotating a plate tail opening and closing main gear shaft to enable a plate tail opening and closing rocker arm to press down on a plate tail bearing on a plate tail rocker arm to ensure that the plate tail clamp is just opened and meets the requirement of an opening angle, then keeping the position unchanged, adjusting the detection disc to the zero position of one side, then reversely rotating the plate tail opening and closing main gear shaft, releasing the plate tail clamp to close the plate tail clamp, just lifting the plate tail opening and closing rocker arm to a position without any interference and leaving a certain margin, ensuring that the detection disc is at the zero position of the other side, repeatedly adjusting the position of the detection disc or the sensor to meet the requirement, and performing the same zero position adjustment operation on a plate head clamp and the sensor;
and finally, after the adjustment is finished, supplying power to the equipment, and repeatedly executing a plate loading and unloading command to detect the work harmony of each component.
(III) automatic plate-loading operation:
before the upper computer software controls the equipment to start plate loading, the equipment automatically adjusts the position of a plate tail clamp, firstly, a photo drum rotates to find the position of the plate tail clamp, then, the photo drum continuously rotates to enable the plate tail clamp to move to a specified plate loading position below a plate tail opening and closing rocker arm, then, a stepping motor drives a gear set to rotate, the plate tail opening and closing rocker arm presses down on a bearing fixed on one side of the plate tail rocker arm, the plate tail clamp is opened by a certain angle, and a tension spring is stretched; then, the upper computer software keeps the opening state of the plate tail clamp to continue rotating for a certain angle according to the size parameters of the printing plate and the current position of the plate tail clamp, the position of the plate tail clamp on the optical drum is correspondingly changed at the moment, and the device can automatically adjust the position of the plate tail clamp according to plates with different sizes;
After the final adjustment of the position of the plate tail is finished, the stepping motor reversely rotates to drive the plate tail opening and closing rocker arm to lift up, the plate tail clamp is closed under the action of the tension spring, then the optical drum rotates to find the position of the plate head clamp and enables the plate head clamp to stay at the appointed plate loading position, then the stepping motor drives the plate head clamp opening and closing rocker arm to press down on a small bearing on the plate head rocker arm, the plate head clamp is opened for a certain angle, and the torsion spring in the plate head clamp is pressed and twisted; then the turnover plate is turned down, a vacuum pump on the equipment starts to work, a certain suction force is formed on the surface of the optical drum, a plate head is placed under a plate head clamp and just abuts against the front gauge position during plate loading, then a stepping motor reversely rotates to drive a plate head opening and closing rocker arm to lift up, the plate head clamp is closed under the torsion action of an internal torsion spring so as to compress the plate, after the plate head is compressed, a plate loading roller mechanism drives a cam shaft to rotate so that a plate pressing roller slowly presses down on the plate, the plate pressing roller rotates along with the optical drum, and the vacuum pump is matched to form the suction force on the surface of the optical drum so as to further enable the plate to be tightly attached to the optical drum; when the optical drum rotates to the position of the plate tail clamp along with the plate, the stepping motor drives the plate tail opening and closing rocker arm to press downwards, so that the plate tail clamp is opened, then the optical drum slightly rotates, so that the plate tail of the plate is just positioned below the plate tail pressing plate, then the stepping motor rotates reversely, the plate tail opening and closing rocker arm is lifted, the plate tail clamp is closed and tightly presses the plate under the action of tension of a tension spring, the turnover plate automatically turns over, the plate pressing roller is lifted, and plate loading is finished;
(IV) automatic plate unloading operation:
after laser engraving is finished, the optical drum rotates to find the positions of a plate head clamp and a plate tail clamp, then the plate tail clamp is stopped at a specified plate unloading position, and the plate tail is just below a plate tail opening and closing rocker arm; pressing the printing roller downwards, pressing the printing plate near the printing plate tail clamp, driving a printing plate tail opening and closing rocker arm to open the printing plate tail clamp by a stepping motor, slightly rotating a light drum to separate the printing plate from the lower part of the printing plate tail clamp, then reversely rotating the stepping motor to lift the printing plate tail opening and closing rocker arm, closing the printing plate tail clamp, turning down a turning plate, enabling the edge of the turning plate to be just abutted to the position near the light drum, and falling the printing plate onto the turning plate after the light drum rotates and then moving from the turning plate to a printing plate supply platform; when the plate is unloaded to the position close to the plate head clamp, the plate pressing roller is lifted, the plate head clamp is opened, the plate unloading of the plate is completed, then the plate head clamp is closed again, and the turnover plate is turned up.
The front gauge is L-shaped, and the standing part penetrates through the plate head pressing plate but does not interfere with the opening and closing of the plate head pressing plate.
Compared with the traditional manual plate loading and unloading and the method for loading and unloading the flexible plate, the automatic plate loading and unloading system improves the automation degree of the plate loading and unloading, greatly simplifies the loading and unloading process, does not need too many people to contact the plate or the photo drum, ensures the plate to be clean, does not need any tape to be pasted, prevents the photo drum and the plate from being scratched by misoperation, and can firmly fix the plate on the photo drum by a mechanical double-plate clamp structure, thereby preventing the plate from moving or causing serious accidents such as plate flying and the like. The automatic plate loading and unloading system enables plate loading to be extremely simple and efficient, shortens the whole plate making time, greatly improves the production efficiency and improves the plate making success rate.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the construction of a light drum according to the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 2.
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 and 3, an automatic flexible plate loading and unloading structure includes a wall plate 1, a light drum 2 is disposed in the wall plate 1, a plate head clamp assembly and a plate tail clamp assembly are disposed on the surface of the light drum 2, and the plate head clamp assembly and the plate tail clamp assembly are controlled by an automatic loading and unloading assembly;
the plate head clamp assembly comprises a plate head shaft 3, a plate head pressing plate 4 is arranged in the plate head shaft 3, plate head rocker arms 5 are respectively arranged at two side ends of the plate head shaft 3, and the plate head rocker arms 5 control the plate head pressing plate 4 to open and close;
the plate tail clamp assembly comprises a plate tail pressing plate 6 and a plate tail shaft bearing 7, plate tail rocker arms 8 are respectively arranged at two side ends of the plate tail pressing plate 6, a plurality of air grooves 9 and sliding grooves 10 are arranged on the surface of the optical drum 2, the air grooves 9 and the sliding grooves 10 are respectively distributed corresponding to the plate head pressing plate 4, the air grooves 9 are sealed through air groove sealing heads 11, a plate tail pressing strip 12 is arranged in the sliding grooves 10, and the lower end of the plate tail shaft bearing 7 is slidably embedded in the plate tail pressing strip 12;
The automatic loading and unloading assembly comprises a plate pressing roller 13, a plate loading roller rocker arm 14, a plate loading roller driving cam shaft 15, a plate tail opening and closing gear 16 and a plate head opening and closing gear 17, one end of the plate loading roller rocker arm 14 is fixed with the plate pressing roller 13, the other end of the plate loading roller rocker arm 14 is fixed with a plate tail opening and closing main gear shaft 18, a rocker arm bearing 19 is arranged in the plate loading roller rocker arm 14, a driving cam 20 which is jointed with the rocker arm bearing 19 is sleeved outside the plate loading roller driving cam shaft 15, the plate loading roller driving cam shaft 15 rotates to drive the plate pressing roller 13 to be jointed with the surface of the smooth drum 2, the plate tail opening and closing main gear shaft 18 drives a transmission gear 21 to rotate, a plate tail opening and closing rocker arm 22 which controls the plate tail rocker arm 8 to open and close is arranged in the plate tail opening and closing gear 16, and a plate head rocker arm 23 which controls the plate head pressing plate 4 to open and close is arranged in the plate head opening and closing gear 17, the plate tail opening and closing gear 16 and the plate head opening and closing gear 17 are synchronously driven through a transmission gear 21.
The plate head shaft 3 is sleeved with a plurality of torsion springs 24 which are distributed at intervals, the plate head pressing plate 4 is provided with a plate head shaft fixing block 25 and a torsion spring fixing block 26, one end of each torsion spring 24 is fixed with the plate head shaft fixing block 25, the other end of each torsion spring 24 is fixed with the torsion spring fixing block 26, the surface of the optical drum 2 is provided with a front gauge 27 matched and connected with the plate head pressing plate 4, and two ends of the plate head shaft 3 are fixed with the optical drum 2 through plate head rotating supports 28; the plate head rocker arm 5 is internally provided with a plate head bearing 29 which is movably opened and closed with the plate head opening and closing rocker arm 23, the plate tail rocker arm 8 is internally provided with a plate tail bearing 30 which is movably opened and closed with the plate tail opening and closing rocker arm 22, and the plate tail rocker arm 8 is elastically connected with the optical drum 2 through a tension spring 31;
The two side ends of the optical drum 2 are respectively provided with a plate tail side plate 32, and a plate tail shaft seat 33 fixed with the plate tail pressing plate 6 is arranged in the plate tail side plate 32.
The number of the plate head opening and closing gears 17 is two, and the two plate head opening and closing gears 17 are distributed at intervals.
A plate loading and unloading method of an automatic plate loading and unloading structure of a flexible plate comprises the following steps:
installing a plate head clamp, a plate tail clamp and a plate installing roller:
mounting a plate head clamp, namely, firstly, supporting and fixing a plate head shaft fixing block, a front gauge and a plate head rotating shaft in an air-groove-free area of a light drum, then, enabling the plate head shaft to sequentially pass through the plate head shaft for rotating and supporting, a torsion spring and the plate head shaft fixing block, fixing the torsion spring fixing block to a plate head pressing plate after the position of the plate head shaft is adjusted, then, fixing the plate head pressing plate on the plate head shaft, and then, fixing a plate head rocker arm to two ends of the plate head shaft;
the installation of the plate tail clamp firstly fixes a plate tail pressing strip in a sliding groove on a photo drum, a plate tail shaft is embedded on the plate tail pressing strip, then plate tail side plates on two sides of the photo drum are fixed, a plate tail shaft seat is fixed on the plate tail side plates, the plate tail pressing plate is placed, the upper end of the plate tail shaft and the upper end of the plate tail shaft seat extend into the plate tail pressing plate, a cylindrical pin penetrates through the plate tail shaft seat and the upper end of the plate tail shaft seat, and one end of the flat wire of the cylindrical pin is tightly pressed by a screw; fixing the plate tail rocker arm to two ends of the plate tail pressure plate, hooking one end of a tension spring to one end of the plate tail rocker arm, and hooking the other end of the tension spring to a fixing column on a plate tail side plate;
After a plate head clamp and a plate tail clamp are arranged on a light drum, a driving motor and a limit sensor are arranged on the outer side of a wall plate, a plate head and plate tail driving gear is arranged on the inner side of the wall plate, a plate head and plate tail opening and closing rocker arm is fixed on a corresponding gear, a plate loading roller rocker arm is rotationally fixed on a plate tail opening and closing main gear shaft, a plate pressing roller is embedded into the other end of the rocker arm, a rocker arm bearing is arranged on the plate loading roller rocker arm, a driving cam is arranged on a plate loading roller driving cam shaft, and finally a turnover plate is arranged between two wall plates;
(II) debugging the system:
the plate head clamp and the plate tail clamp are respectively rotated to a specified device plate unloading position, then the driving shaft is rotated, so that the plate head opening and closing rocker arm and the plate tail opening and closing rocker arm are pressed downwards, the opening and closing rocker arm can be just pressed on a plate tail bearing on the plate head rocker arm and the plate tail rocker arm, the plate head clamp and the plate tail clamp can be opened, when the plate head and the plate tail opening and closing rocker arm are lifted, the plate head clamp can be closed under the torsion action of a torsion spring, and the plate tail clamp can be closed under the tension action of a tension spring; then the plate tail clamp is kept in an open state, and the optical drum is rotated to ensure that the plate tail clamp can smoothly slide on the optical drum; then, the plate loading roller is rotated to drive the cam shaft, so that the plate pressing roller can be pressed on the drum, and the plate pressing roller can be lifted by reversely rotating the plate loading roller to drive the cam shaft;
Then adjusting the zero position of a sensor detection disc, rotating a plate tail opening and closing main gear shaft to enable a plate tail opening and closing rocker arm to be pressed on a plate tail bearing on a plate tail rocker arm, ensuring that a plate tail clamp is just opened and meets the requirement of an opening angle, keeping the position unchanged, adjusting the detection disc to the zero position of one side, then reversing the plate tail opening and closing main gear shaft, releasing the plate tail clamp to close the plate tail clamp, just lifting the plate tail opening and closing rocker arm to the position without any interference and leaving a certain margin, ensuring that the detection disc is at the zero position of the other side, repeatedly adjusting the position of the detection disc or the sensor to meet the requirement, and performing the same zero position adjustment operation on a plate head clamp and the sensor;
and finally, after the adjustment is finished, supplying power to the equipment, and repeatedly executing a plate loading and unloading command to detect the work harmony of each component.
(III) automatic plate-loading operation:
before the upper computer software control equipment starts to load the plate, the equipment automatically adjusts the position of a plate tail clamp, firstly, a photo drum rotates to find the position of the plate tail clamp, then, the photo drum continuously rotates to enable the plate tail clamp to move to a specified plate loading position below a plate tail opening and closing rocker arm, then, a stepping motor drives a gear set to rotate, the plate tail opening and closing rocker arm downwards presses a bearing fixed on one side of the plate tail rocker arm, the plate tail clamp is opened for a certain angle, and a tension spring is stretched; then, the upper computer software keeps the opening state of the plate tail clamp to continue rotating for a certain angle according to the size parameters of the printing plate and the current position of the plate tail clamp, the position of the plate tail clamp on the optical drum is correspondingly changed at the moment, and the device can automatically adjust the position of the plate tail clamp according to plates with different sizes;
After the final adjustment of the position of the plate tail is finished, the stepping motor reversely rotates to drive the plate tail opening and closing rocker arm to lift up, the plate tail clamp is closed under the action of the tension spring, then the optical drum rotates to find the position of the plate head clamp and enables the plate head clamp to stay at the appointed plate loading position, then the stepping motor drives the plate head clamp opening and closing rocker arm to press down on a small bearing on the plate head rocker arm, the plate head clamp is opened for a certain angle, and the torsion spring in the plate head clamp is pressed and twisted; then the turnover plate is turned down, a vacuum pump on the equipment starts to work, a certain suction force is formed on the surface of the optical drum, a plate head is placed under a plate head clamp and just abuts against the front gauge position during plate loading, then a stepping motor reversely rotates to drive a plate head opening and closing rocker arm to lift up, the plate head clamp is closed under the torsion action of an internal torsion spring so as to compress the plate, after the plate head is compressed, a plate loading roller mechanism drives a cam shaft to rotate so that a plate pressing roller slowly presses down on the plate, the plate pressing roller rotates along with the optical drum, and the vacuum pump is matched to form the suction force on the surface of the optical drum so as to further enable the plate to be tightly attached to the optical drum; after the optical drum rotates to a plate tail clamp position along with the plate, the stepping motor drives the plate tail opening and closing rocker arm to press downwards, so that a plate tail clamp is opened, then the optical drum slightly rotates, so that the plate tail of the plate is just positioned below a plate tail pressing plate, then the stepping motor rotates reversely, the plate tail opening and closing rocker arm is lifted, the plate tail clamp is closed and tightly presses the plate under the action of tension of a tension spring, the turnover plate automatically turns up, the plate pressing roller is lifted, and plate loading is finished;
(IV) automatic plate unloading operation:
after laser engraving is finished, the optical drum rotates to find the positions of a plate head clamp and a plate tail clamp, then the plate tail clamp is stopped at a specified plate unloading position, and the plate tail is just below a plate tail opening and closing rocker arm; pressing the printing plate downwards, pressing the printing plate near the printing plate tail clamp, driving a printing plate tail opening and closing rocker arm to open the printing plate tail clamp by a stepping motor, slightly rotating a light drum to separate the printing plate from the lower part of the printing plate tail clamp, then reversely rotating the stepping motor to lift the printing plate tail opening and closing rocker arm, closing the printing plate tail clamp, turning down a turnover plate, enabling the edge of the turnover plate to just abut against the vicinity of the light drum, and enabling the printing plate to fall on the turnover plate after the light drum rotates and to reach a printing plate supply platform from the turnover plate; when the plate is unloaded to the position close to the plate head clamp, the plate pressing roller is lifted, the plate head clamp is opened, the plate unloading of the plate is completed, then the plate head clamp is closed again, and the turnover plate is turned up.
Claims (4)
1. The utility model provides an auto-control handling version structure of flexographic plate which characterized in that: the plate head clamp assembly and the plate tail clamp assembly are controlled through an automatic loading and unloading assembly;
the plate head clamp assembly comprises a plate head shaft (3), a plate head pressing plate (4) is arranged in the plate head shaft (3), plate head rocker arms (5) are respectively arranged at two side ends of the plate head shaft (3), and the plate head rocker arms (5) control the plate head pressing plate (4) to open and close;
The plate tail clamp assembly comprises a plate tail pressing plate (6) and a plate tail shaft receiver (7), wherein plate tail rocker arms (8) are respectively arranged at two side ends of the plate tail pressing plate (6), a plurality of air grooves (9) and sliding grooves (10) are arranged on the surface of the optical drum (2), the air grooves (9) and the sliding grooves (10) are respectively distributed corresponding to the plate head pressing plate (4), the air grooves (9) are sealed through air groove sealing heads (11), a plate tail pressing strip (12) is arranged in the sliding grooves (10), and the lower end of the plate tail shaft receiver (7) is slidably embedded in the plate tail pressing strip (12);
the automatic loading and unloading assembly comprises a plate pressing roller (13), a plate loading roller rocker arm (14), a plate loading roller driving cam shaft (15), a plate tail opening and closing gear (16) and a plate head opening and closing gear (17), one end of the plate loading roller rocker arm (14) is fixed with the plate pressing roller (13), the other end of the plate loading roller rocker arm (14) is fixed with a plate tail opening and closing main gear shaft (18), a rocker bearing (19) is arranged in the plate loading roller rocker arm (14), a driving cam (20) which is attached to the rocker bearing (19) is sleeved outside the plate loading roller driving cam shaft (15), the plate loading roller driving cam shaft (15) rotates to drive the plate pressing roller (13) to be attached to the surface of the optical drum (2), the plate tail opening and closing main gear shaft (18) drives the transmission gear (21) to rotate, a plate tail opening and closing rocker arm (22) which controls the tail rocker arm (8) to open and close is arranged in the plate tail opening and closing gear (16), the plate head opening and closing gear (17) is internally provided with a plate head opening and closing rocker arm (23) for controlling the plate head pressing plate (4) to open and close, and the plate tail opening and closing gear (16) and the plate head opening and closing gear (17) carry out synchronous transmission through a transmission gear (21).
2. The automatic plate loading and unloading structure of the flexible plate according to claim 1, wherein: the plate head mechanism is characterized in that a plurality of torsion springs (24) are distributed outside the plate head shaft (3) at intervals, a plate head shaft fixing block (25) and a torsion spring fixing block (26) are arranged on the plate head pressing plate (4), one end of each torsion spring (24) is fixed to the plate head shaft fixing block (25), the other end of each torsion spring (24) is fixed to the torsion spring fixing block (26), a front gauge (27) matched and connected with the plate head pressing plate (4) is arranged on the surface of the optical drum (2), and two ends of the plate head shaft (3) are fixed to the optical drum (2) through plate head rotating supports (28); the plate head rocker arm (5) is internally provided with a plate head bearing (29) which is movably opened and closed with the plate head opening and closing rocker arm (23), the plate tail rocker arm (8) is internally provided with a plate tail bearing (30) which is movably opened and closed with the plate tail opening and closing rocker arm (22), and the plate tail rocker arm (8) is elastically connected with the optical drum (2) through a tension spring (31);
the plate tail side plates (32) are respectively arranged at two side ends of the optical drum (2), and plate tail shaft seats (33) fixed with the plate tail pressing plates (6) are arranged in the plate tail side plates (32).
3. A flexible plate auto-loading and unloading structure according to claim 1 or 2, wherein: the number of the plate head opening and closing gears (17) is two, and the two plate head opening and closing gears (17) are distributed at intervals.
4. A plate loading and unloading method using the automatic plate loading and unloading structure of the flexible plate according to claim 1 or 2, characterized by comprising the steps of:
installing a plate head clamp, a plate tail clamp and a plate installing roller:
mounting a plate head clamp, namely, firstly, supporting and fixing a plate head shaft fixing block, a front gauge and a plate head rotating shaft in an air-groove-free area of a light drum, then, enabling the plate head shaft to sequentially pass through the plate head shaft for rotating and supporting, a torsion spring and the plate head shaft fixing block, fixing the torsion spring fixing block to a plate head pressing plate after the position of the plate head shaft is adjusted, then, fixing the plate head pressing plate on the plate head shaft, and then, fixing a plate head rocker arm to two ends of the plate head shaft;
the installation of the plate tail clamp firstly fixes a plate tail pressing strip in a sliding groove on a photo drum, a plate tail shaft is embedded on the plate tail pressing strip, then plate tail side plates on two sides of the photo drum are fixed, a plate tail shaft seat is fixed on the plate tail side plates, the plate tail pressing plate is placed, the upper end of the plate tail shaft and the upper end of the plate tail shaft seat extend into the plate tail pressing plate, a cylindrical pin penetrates through the plate tail shaft seat and the upper end of the plate tail shaft seat, and one end of the flat wire of the cylindrical pin is tightly pressed by a screw; fixing the plate tail rocker arm to two ends of the plate tail pressure plate, hooking one end of a tension spring to one end of the plate tail rocker arm, and hooking the other end of the tension spring to a fixing column on a plate tail side plate;
After a plate head clamp and a plate tail clamp are arranged on a light drum, a driving motor and a limit sensor are arranged on the outer side of a wall plate, a plate head and plate tail driving gear is arranged on the inner side of the wall plate, a plate head and plate tail opening and closing rocker arm is fixed on a corresponding gear, a plate loading roller rocker arm is rotationally fixed on a plate tail opening and closing main gear shaft, a plate pressing roller is embedded into the other end of the rocker arm, a rocker arm bearing is arranged on the plate loading roller rocker arm, a driving cam is arranged on a plate loading roller driving cam shaft, and finally a turnover plate is arranged between two wall plates;
(II) debugging the system:
the plate head clamp and the plate tail clamp are respectively rotated to a specified device plate unloading position, then the driving shaft is rotated, so that the plate head opening and closing rocker arm and the plate tail opening and closing rocker arm are pressed downwards, the opening and closing rocker arm can be just pressed on a plate tail bearing on the plate head rocker arm and the plate tail rocker arm, the plate head clamp and the plate tail clamp can be opened, when the plate head and the plate tail opening and closing rocker arm are lifted, the plate head clamp can be closed under the torsion action of a torsion spring, and the plate tail clamp can be closed under the tension action of a tension spring; then the plate tail clamp is kept in an open state, and the optical drum is rotated to ensure that the plate tail clamp can smoothly slide on the optical drum; then, the plate loading roller is rotated to drive the cam shaft, so that the plate pressing roller can be pressed on the drum, and the plate pressing roller can be lifted by reversely rotating the plate loading roller to drive the cam shaft;
Then adjusting the zero position of a sensor detection disc, adjusting the zero position of a plate tail clamp, firstly rotating a plate tail opening and closing main gear shaft to enable a plate tail opening and closing rocker arm to press down on a plate tail bearing on a plate tail rocker arm to ensure that the plate tail clamp is just opened and meets the requirement of an opening angle, then keeping the position unchanged, adjusting the detection disc to the zero position of one side, then reversely rotating the plate tail opening and closing main gear shaft, releasing the plate tail clamp to close the plate tail clamp, just lifting the plate tail opening and closing rocker arm to a position without any interference and leaving a certain margin, ensuring that the detection disc is at the zero position of the other side, repeatedly adjusting the position of the detection disc or the sensor to meet the requirement, and performing the same zero position adjustment operation on a plate head clamp and the sensor;
finally, after the adjustment is finished, power needs to be supplied to the equipment, and the plate loading and unloading commands are repeatedly executed to detect the work harmony of all the components;
(III) automatic plate-loading operation:
before the upper computer software controls the equipment to start plate loading, the equipment automatically adjusts the position of a plate tail clamp, firstly, a photo drum rotates to find the position of the plate tail clamp, then, the photo drum continuously rotates to enable the plate tail clamp to move to a specified plate loading position below a plate tail opening and closing rocker arm, then, a stepping motor drives a gear set to rotate, the plate tail opening and closing rocker arm presses down on a bearing fixed on one side of the plate tail rocker arm, the plate tail clamp is opened by a certain angle, and a tension spring is stretched; then, the upper computer software keeps the opening state of the plate tail clamp to continue rotating for a certain angle according to the size parameters of the printing plate and the current position of the plate tail clamp, the position of the plate tail clamp on the optical drum is correspondingly changed, and the device can automatically adjust the position of the plate tail clamp according to plate materials with different sizes;
After the final adjustment of the position of the plate tail is finished, the stepping motor rotates reversely to drive the plate tail opening and closing rocker arm to lift up, the plate tail clamp is closed under the action of tension of the tension spring, then the optical drum rotates to find the position of the plate head clamp and enables the plate head clamp to stay at a specified plate loading position, the stepping motor drives the plate head clamp opening and closing rocker arm to press down on a small bearing on the plate head rocker arm, the plate head clamp is opened by a certain angle, and the torsion spring in the plate head clamp is pressed and twisted; then the turnover plate is turned down, a vacuum pump on the equipment starts to work, certain suction is formed on the surface of the optical drum, a plate head is placed under a plate head clamp and just abuts against the position of a front gauge during plate loading, then a stepping motor reversely rotates to drive a plate head opening and closing rocker arm to lift up, the plate head clamp is closed under the torsion action of an internal torsion spring so as to press the plate, after the plate head is pressed tightly, a plate loading roller mechanism drives a cam shaft to rotate so that a plate pressing roller slowly presses down on the plate, the plate pressing roller rotates along with the optical drum, and the vacuum pump is matched to form suction on the surface of the optical drum so as to further enable the plate to be tightly attached to the optical drum; after the optical drum rotates to a plate tail clamp position along with the plate, the stepping motor drives the plate tail opening and closing rocker arm to press downwards, so that a plate tail clamp is opened, then the optical drum slightly rotates, so that the plate tail of the plate is just positioned below a plate tail pressing plate, then the stepping motor rotates reversely, the plate tail opening and closing rocker arm is lifted, the plate tail clamp is closed and tightly presses the plate under the action of tension of a tension spring, the turnover plate automatically turns up, the plate pressing roller is lifted, and plate loading is finished;
(IV) automatic plate unloading operation:
after laser engraving is finished, the optical drum rotates to find the positions of a plate head clamp and a plate tail clamp, then the plate tail clamp is stopped at a specified plate unloading position, and the plate tail is just below a plate tail opening and closing rocker arm; pressing the printing plate downwards, pressing the printing plate near the printing plate tail clamp, driving a printing plate tail opening and closing rocker arm to open the printing plate tail clamp by a stepping motor, slightly rotating a light drum to separate the printing plate from the lower part of the printing plate tail clamp, then reversely rotating the stepping motor to lift the printing plate tail opening and closing rocker arm, closing the printing plate tail clamp, turning down a turnover plate, enabling the edge of the turnover plate to just abut against the vicinity of the light drum, and enabling the printing plate to fall on the turnover plate after the light drum rotates and to reach a printing plate supply platform from the turnover plate; when the plate is unloaded to the position close to the plate head clamp, the plate pressing roller is lifted, the plate head clamp is opened, the plate unloading of the plate is completed, then the plate head clamp is closed again, and the turnover plate is turned up.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710365400.6A CN107097510B (en) | 2017-05-22 | 2017-05-22 | Automatic plate loading and unloading structure of flexible plate and plate loading and unloading method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710365400.6A CN107097510B (en) | 2017-05-22 | 2017-05-22 | Automatic plate loading and unloading structure of flexible plate and plate loading and unloading method thereof |
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| CN112558422A (en) * | 2020-11-18 | 2021-03-26 | 江苏友迪电气有限公司 | Plate unloading method and device |
| 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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