CN214269571U - Intelligent automatic control device for paper receiving of gravure printing machine - Google Patents
Intelligent automatic control device for paper receiving of gravure printing machine Download PDFInfo
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- CN214269571U CN214269571U CN202022970784.4U CN202022970784U CN214269571U CN 214269571 U CN214269571 U CN 214269571U CN 202022970784 U CN202022970784 U CN 202022970784U CN 214269571 U CN214269571 U CN 214269571U
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Abstract
The utility model relates to an intelligent automatic control device for gravure press connects paper. The paper feeding device comprises a rack, a first unreeling machine, a second unreeling machine, a paper passing roller assembly and a controller, wherein the first unreeling machine and the second unreeling machine are arranged on the front side and the rear side of the rack and used for mounting paper rollers, the paper passing roller assembly is mounted on the rack and used for guiding paper in a paper discharging direction, the guide roller is arranged on the rack and used for feeding paper to the paper passing roller assembly by the paper rollers, an encoder used for detecting the length of the paper passing through the paper passing roller assembly is arranged on the paper passing roller assembly, and the encoder; the first unreeling machine and the second unreeling machine are provided with detection elements for detecting the rotation of the paper feeding roller of the first unreeling machine and the second unreeling machine for one circle, the detection elements send signals to the controller, the controller sends signals of the rotation of the paper feeding roller for one circle and the paper length detected by the encoder according to the detection elements, and the current diameter of the paper feeding roller is calculated by utilizing a circumference calculation formula. The accuracy of equipment work is improved, and the paper splicing instruction is guaranteed to be stable, reliable and consistent with the reality.
Description
Technical Field
The utility model relates to the field of printing technology, concretely relates to an intelligent automatic control device for gravure press connects paper.
Background
The intaglio printing machine has two material winding shafts, A shaft and B shaft for short, and its function is to make one material winding run and another material supplement new material ready to run without stopping printing. The automatic switching and feeding technology of the winding and unwinding material roll in the printing equipment is relatively common, in order to realize quick automatic material changing, the precision and the stability of the roll diameter detection are particularly important in the running process of the equipment, the waste materials generated by instability or large detection errors of the equipment are more, and the waste materials are all intangibly lost. At present, the roll diameter detection and calibration of a retractable material roll in printing equipment generally adopt a proximity switch and a potentiometer device, and the diameter of a new material roll is calculated through the extending position of a fixed arm of the proximity switch, a photoelectric sensor signal and a potentiometer value after program operation; the sensors and the supports for detection are more, the links are more, the position deviation is easy to occur after each mechanical mechanism runs for a long time, the diameter detection error is larger, the synchronous speed of a new material roll is inaccurate, and then the cutting is unstable, the material is cut off, the machine is stopped or the material is wasted. The overprinting precision of the existing gravure equipment is higher, the printing efficiency is higher, but the automatic paper receiving system work of the unreeling machine is unstable all the time, the paper receiving failure phenomenon often appears during automatic paper receiving, production pause and a large amount of waste products are caused, automatic paper receiving cannot be carried out, the switching of paper rolls is carried out by adopting a manual paper receiving method all the time at present, the accidental shutdown is often caused due to paper receiving errors, and the problems of excessive paper receiving tail paper and paper waste are caused.
Patent 202010631730.7 discloses an automatic gravure press that cuts of ultrasonic wave, including main shaft gear, potentiometre gear, pivot, spacer, diaphragm coupling, digital potentiometer, ultrasonic sensor support, main shaft, slewing drive, operation side support, manual awl top, transmission side support, slewing frame, pneumatic awl top, material axle drive, its characterized in that: a main shaft gear and a potentiometer gear are mounted on the main shaft, the main shaft gear drives the potentiometer gear to rotate, and the potentiometer gear is connected with the digital potentiometer through a rotating shaft, a spacer bush and a diaphragm coupling; the digital potentiometer is electrically connected with the printing equipment unwinding PLC: the ultrasonic sensor is arranged on the sensor support, the sensor support is arranged at the center of the support at the bottom of the material rack, and the ultrasonic sensor is electrically connected with the unreeling PLC of the printing equipment; the digital potentiometer can accurately record the various positions required for the cutting process: the ultrasonic sensor can accurately detect the diameter of the material roll; the gear number of the main shaft gear is the same as that of the potentiometer, the material rack rotates for one circle, the potentiometer rotates for one circle at the same time, and each position in the rotating process of the material rack can be defined by the digital potentiometer: and controlling the cutting and connecting device to complete connection according to the data measured by the digital potentiometer and the ultrasonic sensor.
The problem part that above-mentioned patent exists to prior art improves, but uses the supersound to measure the diameter of paper roll, still has the inaccurate phenomenon of measurement, and the link that exists to prior art is many, and the structure is complicated, and the paper splicing is unstable, and the extravagant problem of paper is not solved fundamentally, and the reason that current equipment paper splicing fails is that the paper splicing action opportunity is unstable, and when the paper runs the empty equipment of time still is in the ready state, leads to the paper splicing to fail.
Disclosure of Invention
In view of the above problems in the prior art and the prior art, the present invention provides an intelligent automatic control device for the gravure printing machine and the control method thereof, which has the advantages of simple structure, cost saving, accurate roll diameter calculation by using a mechanical meter, replacement of the original ultrasonic signal, accurate measurement, improvement of roll detection precision, realization of automatic paper splicing, labor saving, improvement of work efficiency, reduction of tail paper amount, and paper saving.
In order to achieve the purpose, the utility model discloses the technical scheme who takes is: an intelligent automatic control device for receiving paper of an intaglio press comprises a rack, a first unreeling machine, a second unreeling machine, a paper passing roller assembly, a guide roller, a controller and a calculation module, wherein the first unreeling machine and the second unreeling machine are arranged on the front side and the rear side of the rack and used for mounting paper rollers, the paper passing roller assembly is arranged on the rack and used for guiding paper in a paper discharging direction, the guide roller is arranged on the rack and used for feeding the paper on the paper rollers to the paper passing roller assembly, the controller is used for controlling the first unreeling machine and the second unreeling machine to work, the calculation module is used for sending signals to the controller, an encoder used for detecting the length of the paper passing through the paper passing roller assembly is arranged on the paper passing roller assembly, and the encoder is in signal connection with the calculation module; the first unreeling machine and the second unreeling machine are provided with detection elements for detecting the rotation of the paper feeding rollers of the first unreeling machine and the second unreeling machine for a circle, the detection elements send signals to the calculation module, the calculation module sends signals of the rotation of the paper feeding rollers for a circle and the paper length detected by the encoder according to the detection elements, and the current diameter of the paper feeding rollers is calculated by utilizing a circumference calculation formula.
The detection element comprises an A-axis proximity switch and a B-axis proximity switch, the first unreeling machine comprises an A-roller and an A-roller motor for providing power for the A-roller, the A-axis is arranged at the joint of the A-roller and the A-roller motor, the A-axis proximity switch for sending signals to the controller is arranged on the A-axis, and the A-roller motor receives signals of the controller; the second unreeling machine comprises a roller B and a roller B motor used for providing power for the roller B, a shaft B is arranged at the joint of the roller B and the roller B motor, a shaft B proximity switch used for sending signals to the controller is arranged on the shaft B, and the roller B motor receives signals of the controller.
Foretell an intelligent automatic control device for gravure press connects paper, it includes the same, the different paper feed roller of diameter of a plurality of length to roll paper roller subassembly, the encoder passes through coupling assembling fixed mounting in the frame, and with the one end of the longest paper feed roller of diameter is connected in rolling paper roller subassembly.
Foretell an intelligent automatic control device for gravure press connects paper, coupling assembling include one with encoder external diameter assorted shock pad, and connect be used for in the frame with the support of shock pad cooperation fixed encoder, the support is connected one end with the encoder and is equipped with the threaded rod that matches with the fixed orifices on the encoder, still including being used for fixing the nut on the support with the encoder.
The intelligent automatic control device for the paper receiving of the gravure printing machine is characterized in that the central shaft of the encoder and the central shaft of the paper passing roller with the longest diameter are on the same straight line, and the shock pad is a rubber pad.
The intelligent automatic control device for the paper receiving of the gravure printing machine is characterized in that: the controller is a PLC controller.
The intelligent automatic control device for the paper receiving of the gravure printing machine is characterized in that an observation window is arranged on the side face of the rack, and a rack base is arranged at the bottom of the rack.
Use the utility model relates to an intelligent automatic control device for gravure press connects paper's beneficial effect is: the length of the paper is detected by additionally arranging a high-precision encoder at the position of the paper passing stick of the equipment, and meanwhile, a member and a connecting piece for mounting the encoder are designed, so that the encoder is ensured to rotate smoothly without jumping, and the measurement error is reduced; the detection element is additionally arranged on the A, B shaft, the calculation paper roller rotates a circumferential calculation module to send a signal of rotating a circle, the calculation module and related auxiliary devices are used for monitoring the encoder and the detection element, the length calculated by the encoder when the paper roller rotates a circle is used for calculating the accurate diameter of the paper roll, the original ultrasonic signal is replaced, and accurate paper receiving is achieved. The paper receiving device has the advantages that complex work can be completed with low cost, the structure is simple, the maintenance is convenient, the problems of inaccurate paper roller measuring precision and incorrect paper receiving instructions caused by external factors can be thoroughly solved, the working accuracy of the equipment is improved, and the paper receiving instructions are stable, reliable and consistent with the reality. The encoder which is coaxially installed with the paper passing roller with the longest diameter through the damping pad can ensure that the encoder runs stably without shaking, and the working precision of the encoder is improved. Meanwhile, the total number of meters of the used paper in the working process is calculated by using the encoder, and the data statistical capacity of the used paper is improved.
Drawings
Fig. 1 is a schematic diagram of a side structure of a first unwinding machine of the present invention;
fig. 2 is a schematic diagram of a side structure of a second unwinding machine of the present invention;
FIG. 3 is an enlarged schematic view of the encoder mounting position of the present invention;
fig. 4 is a schematic view of the installation position of the detecting element according to the present invention.
Detailed Description
For a better understanding of the present invention, those skilled in the art will be able to further describe the present invention with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1-4: an intelligent automatic control device for receiving paper of an intaglio printing press comprises a frame 1, a first unreeling machine 2 for placing a paper roll is installed on the front side of the frame, a second unreeling machine 3 for placing a spare paper roll is installed on the rear side of the frame, an inner core for installing the paper roll on the first unreeling machine or the second unreeling machine is arranged in the middle of the paper roll, a paper passing roll assembly 4 installed on the frame and used for guiding paper on the paper roll to output to a printing part of the intaglio printing press, the paper passing roll assembly comprises a plurality of paper passing rolls with the same length and different diameters and capable of rotating simultaneously, a guide roll arranged on the frame 1 and used for controlling the paper roll to feed the paper to the paper passing roll assembly 4, and a controller 5 used for controlling the first unreeling machine 2 and the second unreeling machine 3 to work, the controller can use a PLC (programmable logic controller), is installed on the front side of the frame and is in signal connection or linear connection with other control units, the controller is also connected with a calculation module which sends signals to the controller, and the calculation module is a computer which can receive the signals and calculate by using a circumference calculation formula. Be provided with encoder 6 that is used for detecting the paper length through passing paper roller assembly on passing paper roller assembly 4, encoder 6 uses coupling assembling to install on the paper roller that passes paper of the biggest diameter, and the encoder sends the paper length signal to calculation module, the coupling assembling of encoder includes one with encoder external diameter assorted shock pad 61, shock pad 61 can use the rubber pad, and connect and be used for the support 62 with shock pad 61 cooperation fixed encoder 6 in the frame department of installing paper roller, support 62 is connected one end with encoder 6 and is equipped with the threaded rod 63 with the fixed orifices assorted on the encoder, use the nut to screw up on the threaded rod, fixed encoder.
The first unreeling machine 2 and the second unreeling machine 3 are provided with a detection element 7 which is used for detecting the rotation of the paper feeding roller of the first unreeling machine and the second unreeling machine for a circle, the detection element sends a rotation signal of the paper feeding roller to the calculation module, the detection element can use a proximity switch, the detection element is installed on a part which is used for installing the rotation of the rotating shaft of the paper feeding roller synchronously with the first unreeling machine and the second unreeling machine, the rotating shaft of the paper feeding roller rotates for a circle, the detection element completes one-time work and sends a signal to the calculation module.
The rotating shaft of the paper roll installed on the first unreeling machine is an A roll 21, an A roll motor 22 for providing power for the A roll is further arranged, an A shaft is arranged at the joint of the A roll and the A roll motor, the A shaft and the A roll rotate synchronously, and a detection element on the first unreeling machine is installed on the A shaft.
The rotating shaft of the paper roll installed on the second unreeling machine is a B roll, a B roll motor 32 for providing power for the B roll is further arranged, a B shaft is arranged at the joint of the B roll and the B roll motor, the B shaft and the B roll rotate synchronously, and a detection element on the second unreeling machine is installed on the B shaft.
An observation window 11 is arranged on the side surface of the frame and used for observing whether the guide roller and the paper supply part work normally, and a base 12 used for fixing the frame is arranged below the frame.
The intelligent automatic control device for the paper receiving of the photogravure press is simple in structure and low in cost, the accurate diameter of the paper roll is calculated through mathematical conversion after mechanical measurement is carried out, the original ultrasonic signal is replaced, accurate measurement can be carried out, the detection precision of the paper roll is improved, automatic paper receiving is achieved, labor can be saved, the working efficiency is improved, and the amount of tail paper can be reduced.
When in work, the working method comprises the following steps:
(1) a paper roll is arranged on the first unreeling machine, the paper roll is introduced into the paper passing roll assembly through a guide roll, the gravure printing machine starts to work, and a standby paper roll is arranged on the second unreeling machine and waits for use;
(2) the encoder connected to the paper feeding roller with the longest diameter detects and calculates the length S of the paper passing through the paper feeding roller on the first unreeling machine by calculating the rotating number of turns of the paper feeding roller, and sends a signal to the calculating module; the longer the diameter of the paper feeding roller connected with the encoder is, the higher the detection precision of the encoder is, and the encoder can also calculate the lengths of all paper passing through the encoder, so that the length of the used paper can be conveniently counted by a worker;
(3) the detection element connected to the shaft A of the first unreeling machine calculates one rotation of the roller A and sends a signal to the calculation module; the larger the diameter of the paper roller is, the longer the detection element detects that the paper roller rotates one turn;
(4) the calculation module combines the signals of the paper length S sent by the encoder when the paper roller on the shaft A rotates for one circle calculated by the detection element on the shaft A, and utilizes a circumference calculation formula: calculating the diameter of the current paper roll by the circumference S ═ pi ×;
(5) subtracting the diameter of an inner core of the paper roll for mounting the paper roll on the roller A by using the calculated diameter, dividing the diameter by the thickness of the paper to obtain the number of turns of the paper in the effective diameter of the paper roll, and dividing the number of turns in the effective diameter by two to obtain the number of turns of the remaining paper roll;
(6) continuously repeating the steps (2) to (5) within the time of the rotation of the paper roll, and accurately perfecting the number of turns of the remaining paper roll;
(7) when the calculation module calculates that the residual quantity of the paper roll on the roller A reaches a handover range, the handover range is set in the calculation module in advance, the number of turns of paper of the residual paper roll is set to be 5-10 turns, the calculation module sends a signal to the controller, the controller controls the motor of the roller B to start working and controls the standby paper roll on the roller B to supply the paper to the paper feeding roller assembly, when the calculation module calculates that the number of turns of the residual paper of the paper roll is 1-2 turns, the calculation module sends a signal to the controller, and the controller controls the completion of automatic handover of the paper roll on the roller B and the paper roll on the roller A; in the process of handing over, the controller controls the roller A motor and the roller B motor to reduce the rotating speed, so that the rotating speed of paper rolls on the roller A and the roller B is controlled to be reduced, and the accuracy of handing over paper is improved;
(8) similarly, the residual amount of paper on the paper roller on the roller B is detected, and automatic transfer with the paper roller on the roller A is completed;
(9) when the computing module receives the detection element signal that the paper roller rotates but the encoder does not send a paper passing signal to the computing module, the computing module sends a working abnormal signal to the controller, and the controller controls the motor to stop rotating and sends a working abnormal signal to workers.
The above embodiments are only for illustrating the structural conception and the characteristics of the present invention, and the purpose thereof is to enable the person skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (8)
1. The utility model provides an intelligent automatic control device for gravure press connects paper, includes the frame, sets up first machine of unreeling, the second machine of unreeling that both sides are used for installing the paper roll around the frame, installs the paper roller assembly that crosses that is used for guiding paper play paper direction in the frame, sets up the guide roll that is used for paper on the paper roll to the paper roller assembly direction paper feed in the frame, its characterized in that: the paper passing roller assembly is provided with an encoder used for detecting the length of paper passing through the paper passing roller assembly, and the encoder is in signal connection with the calculation module; the first unreeling machine and the second unreeling machine are provided with detection elements for detecting the rotation of the paper feeding rollers of the first unreeling machine and the second unreeling machine for a circle, the detection elements send signals to the calculation module, the calculation module sends signals of the rotation of the paper feeding rollers for a circle and the paper length detected by the encoder according to the detection elements, and the current diameter of the paper feeding rollers is calculated by utilizing a circumference calculation formula.
2. The intelligent automatic control device for the splicing of intaglio printing presses according to claim 1, characterized in that: the detection element comprises an A-axis proximity switch and a B-axis proximity switch, the first unreeling machine comprises an A-roller and an A-roller motor for providing power for the A-roller, the A-axis is arranged at the joint of the A-roller and the A-roller motor, the A-axis proximity switch for sending signals to the controller is arranged on the A-axis, and the A-roller motor receives signals of the controller; the second unreeling machine comprises a roller B and a roller B motor used for providing power for the roller B, a shaft B is arranged at the joint of the roller B and the roller B motor, a shaft B proximity switch used for sending signals to the controller is arranged on the shaft B, and the roller B motor receives signals of the controller.
3. The intelligent automatic control device for the splicing of intaglio printing presses according to claim 2, characterized in that: the paper feeding roller assembly comprises a plurality of paper feeding rollers with the same length and different diameters, and the encoder is fixedly mounted on the frame through a connecting assembly and connected with one end of the paper feeding roller with the longest diameter in the paper feeding roller assembly.
4. The intelligent automatic control device for the splicing of intaglio printing presses according to claim 3, characterized in that: coupling assembling includes one and encoder external diameter assorted shock pad, and connects be used for in the frame with the support of shock pad cooperation fixed encoder, the support is connected one end with the encoder and is equipped with the threaded rod that matches with the fixed orifices on the encoder, still including being used for fixing the nut on the support with the encoder.
5. The intelligent automatic control device for the splicing of intaglio printing presses according to claim 4, characterized in that: the center shaft of encoder and the center shaft of the paper roller that crosses of the longest diameter are on same straight line, the shock pad is the rubber pad.
6. The intelligent automatic control device for the splicing of intaglio printing presses according to claim 5, characterized in that: the controller is a PLC controller.
7. The intelligent automatic control device for the splicing of intaglio printing presses according to claim 6, characterized in that: the side of the rack is provided with an observation window, and the bottom of the rack is provided with a rack base.
8. The intelligent automatic control device for the splicing of intaglio printing presses according to claim 7, characterized in that: the detection element comprises an A-axis proximity switch and a B-axis proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022970784.4U CN214269571U (en) | 2020-12-11 | 2020-12-11 | Intelligent automatic control device for paper receiving of gravure printing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022970784.4U CN214269571U (en) | 2020-12-11 | 2020-12-11 | Intelligent automatic control device for paper receiving of gravure printing machine |
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| Publication Number | Publication Date |
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| CN214269571U true CN214269571U (en) | 2021-09-24 |
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| CN202022970784.4U Active CN214269571U (en) | 2020-12-11 | 2020-12-11 | Intelligent automatic control device for paper receiving of gravure printing machine |
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- 2020-12-11 CN CN202022970784.4U patent/CN214269571U/en active Active
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| CP03 | Change of name, title or address |
Address after: No.28 Dexing Road, Shibei District, Qingdao City, Shandong Province 266021 Patentee after: Yizhong (Qingdao) Printing Co.,Ltd. Address before: 266101 hi tech Industrial Park, Qingdao, Shandong Patentee before: QINGDAO LEIGH-MARDON PACKING CO.,LTD. |
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| CP03 | Change of name, title or address |