CN211222553U - Servo control system of flexo printing machine - Google Patents
Servo control system of flexo printing machine Download PDFInfo
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- CN211222553U CN211222553U CN201921078148.1U CN201921078148U CN211222553U CN 211222553 U CN211222553 U CN 211222553U CN 201921078148 U CN201921078148 U CN 201921078148U CN 211222553 U CN211222553 U CN 211222553U
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Abstract
The utility model discloses a servo control system of a flexo printing machine, compared with the traditional technology, a programmable controller is adopted as a background to carry out overall control, the driving of each mechanism is realized, the complete systematicness is realized, and the driving control is efficient and convenient; the whole set of the unwinding mechanism, the introducing mechanism, the color group mechanism, the leading-out structure and the winding mechanism which are sequentially connected can complete the whole processes of paper transmission, printing, die cutting and winding at one time, and the production line is reasonable in arrangement and high in production efficiency; the color set mechanism for executing the printing process is provided with the corresponding servo motor and the corresponding cylinder for driving, so that the printing process can be carried out orderly, completely and efficiently, good printing quality is ensured, and particularly, the independent control of the bottom roller and the printing roller is realized by adopting a double-servo structure, so that the registration is quicker during printing, and the improvement of the production efficiency is facilitated.
Description
Technical Field
The utility model belongs to the technical field of the printing and specifically relates to a flexo printing machine servo control system.
Background
With the development of industrial automation, the requirements on equipment and printed products are continuously increased, the flexographic printing process is widely applied due to the advantages of health, environmental protection, high efficiency, energy conservation, low cost and the like, and a flexographic printing machine (referred to as a flexo printing machine for short) is special equipment for printing paper products. The flexo printing machine needs to perform registration during printing so that printing can be stably performed, the registration in printing means: controlling the printing plate of each color to accurately print each part of the printing pattern on the required printing stock area; at present, when the flexo printing machine is used for printing, the registration positioning takes a long time, so the whole production efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a flexo printing machine servo control system adopts two servo structure to realize the independent control to bottom roll and version roller for register is rapider during the printing, is favorable to improving production efficiency.
In order to compensate the deficiency of the prior art, the embodiment of the utility model provides an adopt technical scheme is:
a servo control system for a flexo printing machine, comprising:
the printing machine comprises a main body and a programmable controller for overall control, wherein the main body comprises an unreeling mechanism, a leading-in mechanism, a color group mechanism, a leading-out mechanism and a reeling mechanism, the unreeling mechanism is used for restoring paper rolls into paper, the leading-in mechanism is used for conveying the paper, the color group mechanism is used for printing the paper, the leading-out mechanism is used for die-cutting the printed paper into a printed finished product, and the reeling mechanism is used for reeling the printed finished product into the paper rolls; the leading-in mechanism, the leading-out mechanism and the winding mechanism are all connected with the programmable controller;
the color group mechanism comprises a screen roller, a printing roller and a bottom roller, wherein a rubber plate carved with printing patterns is pasted on the surface of the printing roller; the color group mechanism further comprises a first servo motor, a second servo motor, a third servo motor, a first air cylinder, a fourth servo motor and a drying device, wherein the first servo motor is used for driving the screen roller to transmit ink to the rubber plate when the main body operates, the second servo motor is used for driving the screen roller to rotate when the main body does not operate, the third servo motor is used for driving the printing roller to rotate, the first air cylinder is used for pushing the printing roller to move, the fourth servo motor is used for driving the bottom roller, and the drying device is used for drying the ink on printed paper; the first servo motor, the second servo motor, the third servo motor, the first cylinder, the fourth servo motor and the drying device are all electrically connected with the programmable controller.
Further, the unwinding mechanism comprises a magnetic powder brake and an unwinding paper detection device used for controlling the braking force of the magnetic powder brake, and the unwinding paper detection device is connected to the magnetic powder brake and the introducing mechanism respectively.
Further, the introducing mechanism comprises a deviation correcting device for reducing deviation of the paper in the advancing direction, a fifth servo motor for driving the deviation correcting device and a tension detector for feeding back tension analog quantity to the fifth servo motor to adjust the speed, and the fifth servo motor is respectively connected to the deviation correcting device, the tension detector and the programmable controller.
Further, the leading-out mechanism comprises a conveyor belt for conveying printed paper, a knife roller for cutting the printed paper into a printing finished product, a recovery device for winding waste materials generated in the paper cutting process, a sixth servo motor for driving the conveyor belt, a seventh servo motor for driving the knife roller and an eighth driving motor for driving the recovery device, which are sequentially connected; the sixth servo motor, the seventh servo motor and the eighth driving motor are all electrically connected with the programmable controller.
Further, the winding mechanism comprises a winding machine for winding the printed finished roll into a paper roll and outputting the paper roll and a variable frequency motor for driving the winding machine, and the variable frequency motor is respectively connected to the winding machine and the programmable controller.
Further, the drying device is a fan or a blower.
Further, the second servo motor is a direct current motor.
The embodiment of the utility model provides an in one or more technical scheme, following beneficial effect has at least: the programmable controller is used as a background to carry out overall control, so that the driving of each mechanism is realized, the system is complete, and the driving control is efficient and convenient; the whole set of the unwinding mechanism, the introducing mechanism, the color group mechanism, the leading-out structure and the winding mechanism which are sequentially connected can complete the whole processes of paper transmission, printing, die cutting and winding at one time, and the production line is reasonable in arrangement and high in production efficiency; the color set mechanism for executing the printing process is provided with the corresponding servo motor and the corresponding cylinder for driving, so that the printing process can be carried out orderly, completely and efficiently, good printing quality is ensured, and particularly, the independent control of the bottom roller and the printing roller is realized by adopting a double-servo structure, so that the registration is quicker during printing, and the improvement of the production efficiency is facilitated.
Drawings
The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.
Fig. 1 is a block diagram schematically illustrating a servo control system of a flexo printing machine according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a main body of a servo control system of a flexo printing machine according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
The embodiments of the present invention will be further explained with reference to the drawings.
Referring to fig. 1 and 2, an embodiment of the present invention provides a servo control system for a flexo printing machine, including:
the main body 50 comprises an unreeling mechanism 10 for reducing paper rolls into paper, a leading-in mechanism 20 for transmitting paper, a color group mechanism 30 for printing paper, a leading-out mechanism 90 for die-cutting the printed paper into a printed finished product and a reeling mechanism 100 for reeling the printed finished product into paper rolls, which are sequentially connected and arranged; the leading-in mechanism 20, the leading-out mechanism 90 and the winding mechanism 100 are all connected with the programmable controller 40;
the color group mechanism 30 comprises a screen roller 34, a plate roller 31 and a bottom roller 32, wherein a rubber plate carved with a printing pattern is attached to the surface of the plate roller 31; the color group mechanism 30 further comprises a first servo motor 35 for driving the mesh roller 34 to transfer ink to the offset plate when the main body 50 is in operation, a second servo motor 36 for driving the mesh roller 34 to rotate when the main body 50 is not in operation, a third servo motor 37 for driving the plate roller 31 to rotate, a first air cylinder 38 for pushing the plate roller 31 to move, a fourth servo motor 39 for driving the bottom roller 32, and a drying device 33 for drying ink on printed paper; the first servo motor 35, the second servo motor 36, the third servo motor 37, the first air cylinder 38, the fourth servo motor 39 and the drying device 33 are all electrically connected to the programmable controller 40.
In this embodiment, the number of the color set mechanisms 30 can be set according to the type of the pattern, the color, and the like to be printed, for example, when used for printing food label paper, at least 6 sets of color set mechanisms 30 are generally required, and in this embodiment, 6 sets of color set mechanisms 30 are adopted; the programmable controller 40 is used as a background to carry out overall control, so that the driving of each mechanism is realized, the system is complete, and the driving control is efficient and convenient; the unwinding mechanism 10, the leading-in mechanism 20, the color group mechanism 30, the leading-out structure and the winding mechanism 100 are sequentially connected in a whole set, so that the whole processes of paper transmission, printing, die cutting and winding can be completed at one time, the production line is reasonable in arrangement, and the production efficiency is high; the color set mechanism 30 for executing the printing process is provided with the corresponding servo motor and the corresponding cylinder for driving, so that the printing process can be carried out orderly, completely and efficiently, good printing quality is ensured, and particularly, the independent control of the bottom roller 32 and the printing roller 31 is realized by adopting a double-servo structure, so that the registration is quicker during printing, and the improvement of the production efficiency is facilitated.
Specifically, the paper roll is changed into paper by the unwinding mechanism 10, and then the paper is transferred to the color set mechanism 30 by the introducing mechanism 20, in the color set mechanism 30, when the main body 50 operates, the mesh roller 34 is driven by the first servo motor 35, which is responsible for transferring ink to a rubber plate with a printing pattern through an ink fountain, when the main body 50 stops operating, the mesh roller 34 is driven by the second servo motor 36 to operate, so that drying of the ink fountain can be prevented, the plate roller 31 is driven by the third servo motor 37, so that the printing accuracy of the paper printing is ensured, and, because the main body 50 stops operating, the plate roller 31 is pushed away from the bottom roller 32 by the first cylinder 38 (during printing, the plate roller 31 is pushed by the first cylinder 38, the plate roller 31 is almost completely contacted with the bottom roller 32, only paper passes through for printing), so that the quick pre-overprinting can be performed, the working efficiency is improved, the bottom roller 32 is driven by the fourth servo motor 39, guarantee that the paper keeps smooth-going when main part 50 moves, the paper after the printing passes through drying device 33 and dries, then utilizes leading-out mechanism 90 to cut the paper cross cutting after the printing for the printing finished product, makes the printing finished product into the scroll with winding mechanism 100 at last, conveniently assembles, transports outside and sells.
Further, the utility model provides another embodiment still provides a flexo printing machine servo control system, wherein, unwinding mechanism 10 includes magnetic powder brake 11 and is used for control unwinding paper detection device 12 of magnetic powder brake 11's brake dynamics, unwinding paper detection device 12 is connected to respectively magnetic powder brake 11 with introduction mechanism 20.
In the present embodiment, the magnetic powder brake 11 is an existing structure for providing tension control when the roll is unwound, and preventing the paper from being damaged; the tension is detected by the unreeling paper detection device 12, so that the magnetic powder brake 11 is correspondingly controlled in a feedback mode, and good and stable unreeling control is achieved, wherein the unreeling paper detection device 12 can be a tension detector 22.
Further, another embodiment of the present invention further provides a servo control system for a flexographic printing machine, wherein the introducing mechanism 20 includes a deviation rectifying device 23 for reducing deviation of paper in a forward direction, a fifth servo motor 21 for driving the deviation rectifying device 23, and a tension detector 22 for feeding back a tension analog quantity to the fifth servo motor 21 to adjust a speed, and the fifth servo motor 21 is respectively connected to the deviation rectifying device 23, the tension detector 22, and the programmable controller 40.
In this embodiment, the deviation correcting device 23 is a mechanical device commonly used in the art for correcting a side error occurring in the forward movement of the web, and can reduce the deviation of the paper in the forward direction, so that the paper transmission is more stable; the tension detector 22 feeds back the detected tension to the fifth servo motor 21, and the speed of the fifth servo motor 21 is adjusted by the programmable controller 40, so that the requirement of paper transportation speed is met, and the control mode is convenient and fast and has high precision.
Further, another embodiment of the present invention further provides a servo control system of a flexo printing machine, wherein the drawing mechanism 90 comprises a conveyor belt 95 for conveying printed paper, a knife roller 91 for cutting the printed paper into printed finished products, a recovery device (not shown) for winding waste materials generated in the paper cutting process, a sixth servo motor 94 for driving the conveyor belt 95, a seventh servo motor 93 for driving the knife roller 91, and an eighth drive motor 92 for driving the recovery device, which are connected in sequence; the sixth servo motor 94, the seventh servo motor 93 and the eighth driving motor 92 are electrically connected to the programmable controller 40.
In this embodiment, the knife roller 91 is used for on-line die cutting, which can reduce the additional cost for purchasing a die cutting machine and improve the production efficiency, the knife roller 91 can cut the continuously transmitted paper into a printed finished product, the specific cutting shape is determined according to different knife rollers 91, and the cutting by the knife roller 91 is the prior art in the field, and therefore, the details are not described herein; after being cut by the knife roller 91, two parts of materials are output, one part is a printing finished product, the other part is waste materials such as paper shreds and the like generated along with the printing finished product, at the moment, the waste materials are wound by a recovery device, the waste materials can be prevented from polluting the printing finished product, meanwhile, the waste materials can be cleaned, two purposes are achieved by one stroke, and the recovery device can be a large-scale winding machine or a small-scale winding drum; the sixth servo motor 94, the seventh servo motor 93 and the eighth drive motor 92 play a good driving role, and the operation stability of the conveyor belt 95, the knife roll 91 and the recovery device is ensured.
Further, the utility model discloses another embodiment still provides a flexographic printing machine servo control system, wherein, winding mechanism 100 includes the rolling machine (not shown) that is used for rolling up the printing finished product and is the scroll output and is used for driving the inverter motor 101 of rolling machine, inverter motor 101 is connected to respectively the rolling machine with programmable controller 40. In the embodiment, the winding machine is driven by the variable frequency motor 101, so that the driving effect is good; the winding machine is commonly used in the prior art, can wind raw materials into a coil material in a mechanical mode, is widely applied to processing production lines of paper rolls, cloth rolls, plastic rolls, metal coils and the like, and has a good and stable paper winding function.
Further, another embodiment of the present invention further provides a servo control system for a flexo printing machine, wherein the drying device 33 is a fan or a blower. In this embodiment, the drying device 33 has stable air outlet and good drying effect, and the drying device 33 may be replaced by a structure capable of generating flowing air with similar function.
Further, another embodiment of the present invention further provides a servo control system for a flexo printing machine, wherein the second servo motor 36 is a dc motor. In the present embodiment, the second servo motor 36 is operated when the main body 50 is stopped, and the system is not necessarily able to supply ac power, but in contrast, the driving is more stable by supplying dc power, so that the second servo motor 36 is preferably a dc motor.
While the preferred embodiment and basic principles of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is intended to cover various modifications, equivalents and alternatives falling within the scope of the invention as claimed.
Claims (7)
1. A servo control system for a flexo printing machine, comprising:
the printing machine comprises a main body and a programmable controller for overall control, wherein the main body comprises an unreeling mechanism, a leading-in mechanism, a color group mechanism, a leading-out mechanism and a reeling mechanism, the unreeling mechanism is used for restoring paper rolls into paper, the leading-in mechanism is used for conveying the paper, the color group mechanism is used for printing the paper, the leading-out mechanism is used for die-cutting the printed paper into a printed finished product, and the reeling mechanism is used for reeling the printed finished product into the paper rolls; the leading-in mechanism, the leading-out mechanism and the winding mechanism are all connected with the programmable controller;
the color group mechanism comprises a screen roller, a printing roller and a bottom roller, wherein a rubber plate carved with printing patterns is pasted on the surface of the printing roller; the color group mechanism further comprises a first servo motor, a second servo motor, a third servo motor, a first air cylinder, a fourth servo motor and a drying device, wherein the first servo motor is used for driving the screen roller to transmit ink to the rubber plate when the main body operates, the second servo motor is used for driving the screen roller to rotate when the main body does not operate, the third servo motor is used for driving the printing roller to rotate, the first air cylinder is used for pushing the printing roller to move, the fourth servo motor is used for driving the bottom roller, and the drying device is used for drying the ink on printed paper; the first servo motor, the second servo motor, the third servo motor, the first cylinder, the fourth servo motor and the drying device are all electrically connected with the programmable controller.
2. A flexo printing machine servo control system according to claim 1, wherein: the unwinding mechanism comprises a magnetic powder brake and an unwinding paper detection device used for controlling the braking force of the magnetic powder brake, and the unwinding paper detection device is connected to the magnetic powder brake and the introducing mechanism respectively.
3. A flexo printing machine servo control system according to claim 1, wherein: the leading-in mechanism comprises a deviation correcting device used for reducing deviation of paper in the advancing direction, a fifth servo motor used for driving the deviation correcting device and a tension detector used for feeding back tension analog quantity to the fifth servo motor to adjust the speed, and the fifth servo motor is respectively connected to the deviation correcting device, the tension detector and the programmable controller.
4. A flexo printing machine servo control system according to claim 1, wherein: the leading-out mechanism comprises a conveyor belt for conveying printed paper, a knife roller for cutting the printed paper into a printed finished product, a recovery device for winding waste materials generated in the paper cutting process, a sixth servo motor for driving the conveyor belt, a seventh servo motor for driving the knife roller and an eighth driving motor for driving the recovery device, wherein the conveyor belt, the knife roller and the recovery device are sequentially connected; the sixth servo motor, the seventh servo motor and the eighth driving motor are all electrically connected with the programmable controller.
5. A flexo printing machine servo control system according to claim 1, wherein: the winding mechanism comprises a winding machine and a variable frequency motor, the winding machine is used for outputting printed finished rolls to form paper rolls, the variable frequency motor is used for driving the winding machine, and the variable frequency motor is connected to the winding machine and the programmable controller respectively.
6. A flexo printing machine servo control system according to claim 1, wherein: the drying device is a fan or a blower.
7. A flexo printing machine servo control system according to any one of claims 1-6, wherein: the second servo motor is a direct current motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920980133 | 2019-06-26 | ||
| CN2019209801338 | 2019-06-26 |
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| CN211222553U true CN211222553U (en) | 2020-08-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442554A (en) * | 2021-07-26 | 2021-09-28 | 南京邦诚科技有限公司 | Distributed flexible plate printing machine and printing control method |
| CN113442555A (en) * | 2021-07-26 | 2021-09-28 | 南京邦诚科技有限公司 | Flexible plate printing machine with accurate color register and control method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442554A (en) * | 2021-07-26 | 2021-09-28 | 南京邦诚科技有限公司 | Distributed flexible plate printing machine and printing control method |
| CN113442555A (en) * | 2021-07-26 | 2021-09-28 | 南京邦诚科技有限公司 | Flexible plate printing machine with accurate color register and control method |
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