CN216860928U - Online humidifying device and rotary printing line - Google Patents
Online humidifying device and rotary printing line Download PDFInfo
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- CN216860928U CN216860928U CN202220225561.1U CN202220225561U CN216860928U CN 216860928 U CN216860928 U CN 216860928U CN 202220225561 U CN202220225561 U CN 202220225561U CN 216860928 U CN216860928 U CN 216860928U
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Abstract
The application provides an online humidifying device and rotation printing line relates to printing technical field for to the printing apparatus wait that the printing paper carries out online humidifying and handles, including set gradually in humidification chamber and heating chamber on the printing apparatus's the transmission line, be provided with the humidifier in the humidification chamber, be equipped with the heater in the heating chamber, the paper of waiting to print passes through the transmission of transmission line with the traction of printing apparatus passes through in proper order humidification chamber humidification the heating chamber heating. The paper absorbs water and deforms through humidification, the deformed paper is heated through the heating chamber, the paper is dehydrated, the paper does not deform basically when meeting water after the paper absorbs water and is dehydrated, the paper does not deform any more in the subsequent printing process through the mode of deforming the paper in advance, the paper can be accurately aligned through multiple printing processes, the printed patterns are deepened at the same position of the paper, the problem of printing double images due to paper deformation is avoided, and the printing quality is improved.
Description
Technical Field
The application relates to the technical field of printing, in particular to an online humidity adjusting device and a rotary printing line.
Background
In order to ensure the efficiency of printing in batches, a rotary press is generally used to print a web, and the rotary press is generally divided into a front-end paper feeder and a rear-end printing unit. During printing, the roll paper is fixed on the paper feeding device, one end of the roll paper is pulled by the traction device to be unfolded, and the unfolded paper is subjected to a plurality of printing processes at the rear end so as to print the same pattern at the same position of the paper and continuously deepen the color of the pattern to obtain the final effect. After printing is completed, the unfolded paper can be cut into a plurality of single sheets of paper to be delivered to customers as finished products.
In the printing process, the length of the paper after being unfolded is very long, the paper needs to be subjected to a plurality of subsequent printing processes, the time of exposing the paper in the air is long, the paper can deform due to air humidity or accidental water sticking, and after the paper deforms, the printed pattern does not correspond to the printing position of the next process, so that the printed pattern at the same position has double images, and the printing quality is influenced.
SUMMERY OF THE UTILITY MODEL
The application aims to provide an online humidity adjusting device and a rotary printing line, and the online humidity adjusting device and the rotary printing line are used for carrying out online humidity adjusting treatment on paper before printing, so that the deformation probability of the paper in the printing process is reduced, and the printing quality is improved.
One aspect of the present application provides an online humidity control device, which is used for performing online humidity control processing on paper to be printed of a printing device, and includes: set gradually in humidification chamber and heating chamber on lithography apparatus's the transmission line, be provided with the humidifier in the humidification chamber, be equipped with the heater in the heating chamber, the paper of treating the printing passes through the transmission of transmission line with lithography apparatus's drawing is passed through in proper order humidification chamber humidification the heating chamber heating.
The humidifying chamber and the heating chamber are sequentially positioned on the conveying line, the paper is drawn by the drawing device of the printing equipment and moves forwards through the conveying line, is humidified by the humidifying chamber and is heated by the heating chamber, so that the paper is subjected to online humidifying treatment, the paper is deformed in advance, and the paper is prevented from being deformed in the subsequent printing process.
Optionally, a humidity detector is further arranged in the humidification chamber and used for detecting the humidity in the humidification chamber, and the environmental humidity in the humidification chamber is 70% -80%.
The online humidifying device also comprises a controller, the controller is electrically connected with the humidity detector and the humidifier, the humidity detector feeds the detected humidity back to the controller, and the controller can control the humidifier according to the feedback result so as to adjust the environmental humidity of the humidifying chamber.
The environmental temperature in the humidifying chamber is 70% -80%, the humidity can be beneficial to fully absorbing water of the paper, but the paper cannot be softened and damaged due to over-saturation of the water absorbed by the paper, and the integrity and certain hardness of the paper are required to be kept after the paper is humidified, so that the paper can be continuously heated and dehydrated in the heating chamber, and printing is carried out after the paper is dehydrated.
Optionally, the heater is an infrared heater. The infrared heat transfer mode is radiation heat transfer, has penetrating power, good heat efficiency and clean heating process, is suitable for heating paper which is a clean product, and can obtain high-efficiency and high-uniformity heating, thereby obtaining a high-quality product.
Optionally, a temperature detector is further disposed in the heating chamber and used for detecting the temperature in the heating chamber, and the ambient temperature in the heating chamber is 200-300 ℃.
The temperature detector is used for detecting the temperature in the heating chamber. The temperature detector and the heater are respectively electrically connected with the controller, the temperature detector feeds the detected temperature in the heating chamber back to the controller in real time, and the controller controls the heater according to the temperature feedback result and can adjust the heating temperature.
Optionally, the humidifier further comprises a controller, and the controller is electrically connected with the humidifier, the humidity detector, the heater and the temperature detector respectively. The automatic control humidification and heating are realized through the controller, and the environmental humidity and the environmental temperature can also be adjusted.
Optionally, at least three groups of the humidifying chambers and the heating chambers are respectively provided, and the humidifying chambers are arranged between two adjacent groups of the heating chambers at intervals.
Taking three groups of humidifying chambers and three groups of heating chambers as an example, the pre-humidifying process comprises primary humidification, primary heating, secondary humidification, secondary heating, tertiary humidification and tertiary heating, and the paper is repeatedly absorbed and dehydrated through three humidification-heating cycles so as to be fully deformed and not to be deformed during subsequent printing.
In another aspect of the present application, there is provided a rotary printing line including: draw gear, transmission line and be located in proper order paper feeding device, foretell online humidifying device and printing device on the transfer path of transmission line, predetermine on the paper feeding device and wait to print the paper and with draw gear connects, wait to print the paper warp draw of draw gear is in convey and print on the transfer path of transmission line.
The method comprises the steps of placing roll paper on a paper feeding device, then drawing the paper to be unfolded by a drawing device and transmitting the paper through a transmission line, carrying out humidifying pretreatment through humidifying and heating in the paper transmission process, and then printing patterns on the paper through a printing device.
Optionally, the system further comprises a master controller, and the master controller is electrically connected with the traction device and the online humidity adjusting device respectively. The whole rotary printing line is controlled by the master controller so as to match the traction speed with humidification and heating.
Optionally, the conveyor line comprises a frame and a plurality of mutually parallel rollers rotatably arranged on the frame.
The parallel rollers are convenient for paper to be transmitted, and the paper passes through the upper surface or the lower surface of the rollers to be transmitted, so that the paper forms a transmission path with undulation in the transmission process, and the purpose is to straighten the paper by matching with the traction force of the traction device, so that the paper can be in a stretched state during humidifying and printing.
The application provides an online humidifying device and a rotary printing line, the online humidifying device is used for carrying out online humidifying treatment on paper to be printed of a printing device, the online humidifying device comprises a humidifying chamber and a heating chamber which are arranged in sequence, the humidifying chamber and the heating chamber are positioned on a conveying line of the printing device, a humidifier is arranged in the humidifying chamber and is used for carrying out humidifying treatment on the paper, a heater is arranged in the heating chamber and is used for carrying out heating treatment on the paper, the paper to be printed is humidified by the humidifying chamber and is heated by the heating chamber in sequence through the transmission of a conveying line and the traction of the printing device, the paper absorbs water and deforms through humidification, the deformed paper is heated by the heating chamber and is dehydrated, the paper basically does not deform when meeting water after absorbing water and dehydrating, the paper does not deform any more during subsequent printing through the mode of deforming the paper in advance, and the paper passes through a plurality of printing processes, the paper double-image printing machine can be accurately aligned, deepens the printed patterns at the same position of the paper, avoids the problem of double images caused by the deformation of the paper, keeps the consistency of the printed patterns and improves the printing quality.
Furthermore, the rotary printing line comprises a traction device, a transmission line, a paper feeding device, the online humidity adjusting device and a printing device, wherein the paper feeding device, the online humidity adjusting device and the printing device are sequentially positioned on a transmission path of the transmission line, paper to be printed is preset on the paper feeding device and is connected with the traction device, and the paper to be printed is transmitted and printed on the transmission path of the transmission line through the traction of the traction device. The whole production process of the paper comprises the following steps: the method comprises the steps of placing roll paper on a paper feeding device, then drawing the paper to be unfolded by a drawing device and transmitting the paper through a transmission line, carrying out humidifying pretreatment through humidifying and heating in the paper transmission process, and then printing patterns on the paper through a printing device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic view of a rotary printing line configuration provided herein;
fig. 2 is a flowchart of a rotary printing line provided herein.
Icon: 10-frame, 11-drum; 100-a web; 110-a paper feeding device; 120-online humidifying device; 130-printing means.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
When printing paper, firstly, the roll paper 100 is fixed on the paper feeding device 110, one end of the roll paper 100 is pulled by the traction device to be unfolded, the length of the unfolded paper is long, a plurality of printing processes are required, the same pattern is printed at the same position of the paper, and the color of the pattern is continuously deepened through the plurality of printing processes, so that the final printing effect is obtained.
In the printing process, paper is dragged and conveyed by the traction device, the time of exposing the unfolded paper in the air is long, the paper can deform due to air humidity or accidental water sticking, and after the paper deforms, the printed pattern does not correspond to the printing position of the next procedure, so that the printed pattern at the same position has double images, and the printing quality is influenced.
In order to solve the above problem, the embodiment of the present application provides an online humidity adjustment device 120 and a rotary printing line, where online humidity adjustment is performed on paper before printing, so that the paper is deformed, and after the paper subsequently encounters water again, the paper is basically not deformed, the probability of deformation of the paper in the printing process is reduced, and the printing quality is improved.
Specifically, referring to fig. 1, an online humidity control apparatus 120 for performing online humidity control on paper to be printed in a printing device according to an embodiment of the present application includes: the printing device comprises a humidifying chamber and a heating chamber which are sequentially arranged on a conveying line of the printing device, wherein a humidifier is arranged in the humidifying chamber, a heater is arranged in the heating chamber, and paper to be printed is sequentially humidified by the humidifying chamber and heated by the heating chamber through the transmission of the conveying line and the traction of the printing device.
The humidifying chamber and the heating chamber are sequentially positioned on the conveying line, the paper is drawn by the drawing device of the printing equipment and is conveyed by the conveying line to move forwards, is humidified by the humidifying chamber and is heated by the heating chamber, so that the paper is subjected to humidifying treatment, the paper is deformed in advance, and the paper is prevented from being deformed in the subsequent printing process.
The humidifying is to make the paper absorb water and make the paper deform, and the deformed paper is heated by the heating chamber to dewater the paper, so that the fiber in the paper can hardly deform when meeting water after the paper absorbs water and is dewatered, and the paper is deformed in advance by the way, so that the paper can deepen the pattern at the same position of the paper through a plurality of printing processes in preparation for subsequent printing, and the problem of printing double images caused by the deformation of the paper can be solved.
The online humidity control device 120 provided by the embodiment of the application is used for performing online humidity control treatment on paper to be printed of a printing device, the online humidity control device 120 comprises a humidifying chamber and a heating chamber which are sequentially arranged, the humidifying chamber and the heating chamber are positioned on a conveying line of the printing device, a humidifier is arranged in the humidifying chamber and used for performing humidification treatment on the paper, a heater is arranged in the heating chamber and used for performing heating treatment on the paper, the paper to be printed is humidified and heated by the humidifying chamber and the heating chamber in sequence through the transmission of the conveying line and the traction of the printing device, the paper absorbs water and deforms through humidification, the deformed paper is heated by the heating chamber and is dehydrated, the paper basically does not deform when meeting water after absorbing water and dehydrating, and the paper does not deform when being printed in the subsequent process through the mode of deforming the paper in advance, the paper double-image printing machine can be accurately aligned, deepens the printed patterns at the same position of the paper, avoids the problem of double images caused by the deformation of the paper, keeps the consistency of the printed patterns and improves the printing quality.
Further, when the paper enters the humidifying chamber, the nozzle of the humidifier faces the paper, so that the paper can be directly and rapidly humidified.
Meanwhile, a humidity detector is further arranged in the humidifying chamber and used for detecting the ambient humidity in the humidifying chamber in real time, the online humidifying device 120 comprises a controller, the controller is electrically connected with the humidity detector and the humidifier, the humidity detected by the humidity detector is fed back to the controller, and the controller can control the humidifier according to a feedback result so as to adjust the ambient humidity of the humidifying chamber.
Illustratively, the ambient temperature in the humidifying chamber is 70% -80%, and the humidity is favorable for the paper to absorb water sufficiently, but the paper cannot absorb water too much to be saturated so that the paper is softened and damaged, and the integrity and certain hardness of the paper are maintained after the paper is humidified, so that the paper can enter the heating chamber to be heated and dehydrated, and printing is performed after the dehydration.
After the paper is humidified, the paper enters a heating chamber for heating and dehydration, the heater is an infrared heater, the heat transfer form of infrared is radiation heat transfer, the paper has penetrating power, the heat efficiency is good, the heating process is clean, the paper heating device is suitable for heating the clean paper product, high-efficiency and high-uniformity heating can be achieved, and further a high-quality product is obtained.
In addition, a temperature detector is arranged in the heating chamber and used for detecting the temperature in the heating chamber. The temperature detector and the heater are respectively electrically connected with the controller, the temperature detector feeds the detected temperature in the heating chamber back to the controller in real time, and the controller controls the heater according to the temperature feedback result and can adjust the heating temperature.
When the paper is heated and dehydrated, the environmental temperature in the heating chamber is kept at 200-300 ℃ so as to ensure that the paper is fully dehydrated.
Realize automatic control humidification and heating through the controller, can also adjust ambient humidity and ambient temperature according to real-time feedback.
Still can communicate the aspirator in the heating chamber, through the aspirator to convulsions in the heating chamber, convulsions enable the heating heat in the heating chamber fully to circulate, keep the temperature unanimous everywhere in the heating chamber, carry out the even heating to the paper.
The air extractor can also be electrically connected with the controller, and the air quantity and other parameters of air extraction can be controlled by the controller so as to be matched with the heater to adjust the environmental temperature in the heating chamber.
The humidifying chambers and the heating chambers are at least respectively provided with three groups, and the humidifying chambers are arranged between the two adjacent groups of heating chambers at intervals.
Taking three groups of humidifying chambers and three groups of heating chambers as an example, as shown in fig. 2, the pre-humidifying process comprises primary humidifying, primary heating, secondary humidifying, secondary heating, tertiary humidifying and tertiary heating, and the paper is repeatedly absorbed and dehydrated through a cycle of tertiary humidifying and heating so as to be sufficiently deformed and not deformed during subsequent printing.
The embodiment of the application also discloses a rotary printing line, which comprises a traction device, a transmission line, a paper feeding device 110, an online humidity adjusting device 120 and a printing device 130, wherein the paper feeding device 110, the online humidity adjusting device 120 and the printing device 130 are sequentially arranged on the transmission path of the transmission line, paper to be printed is preset on the paper feeding device 110 and is connected with the traction device, and the paper to be printed is transmitted and printed on the transmission path of the transmission line through the traction of the traction device.
The whole production process of the paper comprises the following steps: the web 100 is placed on a paper feeding device 110, and then a traction device draws the paper to spread and transmit the paper through a transmission line, and the paper is subjected to humidity conditioning and heating for pretreatment of humidity conditioning during transmission, and then is printed with patterns through a printing device 130.
The online moisture control device 120 can deform the paper in advance, so that the shape consistency of the paper can be maintained and the printing quality can be improved when the paper is printed at the rear end.
The conveying line comprises a frame 10 and a plurality of parallel rollers 11 rotatably arranged on the frame 10, when the paper is drawn by the drawing device, the paper passes through the rollers 11, the rollers 11 rotate to provide an auxiliary force for paper conveying, and the paper is drawn and conveyed and unfolded from the paper feeding device 110 by matching with the drawing of the drawing device.
The parallel cylinders 11 facilitate the sheet transport, and the sheet is transported across the upper or lower surfaces of the parallel cylinders 11, for example, so that the sheet forms an undulating transport path during transport, which is intended to straighten the sheet in cooperation with the traction force of the traction device, so that the sheet can be straightened during conditioning and printing.
The rotary printing line further comprises a master controller, the master controller is respectively and electrically connected with the traction device and the online humidity adjusting device 120, and the whole rotary printing line is controlled through the master controller so that the traction speed is matched with humidification and heating.
In summary, when printing paper, the drawing device draws the web on the paper feeding device 110 to unfold the paper and transmits the paper through the rotation of the plurality of rollers 11, the paper is subjected to humidity conditioning pretreatment through the online humidity conditioning device 120 during the paper transmission process, the humidifying chamber and the heating chamber are positioned on the transmission line formed by the rollers 11, the paper is drawn by the drawing device and rotates with the rollers 11 to enter the humidifying chamber, the humidifier is arranged in the humidifying chamber, the paper is subjected to the humidifying treatment through the humidifier to absorb water and deform, the environmental temperature in the humidifying chamber can be 70% -80%, the full water absorption of the paper is facilitated, the paper is not softened and damaged due to over-saturation of the water absorption of the paper, the integrity and certain hardness of the paper are maintained after the paper is humidified, the paper is further subjected to heating dehydration in the heating chamber, the heater is arranged in the heating chamber, the paper is subjected to the heating treatment through the heater, the ambient temperature in the heating chamber may be 200-300 deg.c to ensure sufficient dewatering of the paper. The humidification-heating can be circulated for at least three times, after the paper is subjected to water absorption-dehydration for multiple times, the paper basically does not deform when meeting water, and the paper does not deform in the subsequent printing process in a mode of deforming the paper in advance; after the paper comes out from the last heating chamber, the pattern printing is carried out through a plurality of printing processes, the deformed paper is used in advance, and when the paper is printed again, the plurality of printing processes can be accurately aligned at the same position of the paper, so that the problem of double images caused by the deformation of the paper is avoided, the consistency of the printed pattern is maintained, and the printing quality is improved.
And, in order to realize automatic control, the whole wheel-rotating printing line is always controlled to accessible master controller, the master controller is connected draw gear and online humidifying device 120 electrically respectively, online humidifying device 120 includes the controller, the controller can be connected with master controller electricity, the controller again with moisture detector, the humidifier, thermodetector, the heater electricity is connected, moisture detector feeds back the humidity that detects to the controller, thermodetector feeds back the temperature that detects in the heating chamber to the controller in real time, the controller can be with humidity, the temperature feeds back to master controller again, master controller cooperation traction speed, the environmental humidity of accessible controller regulation humidification chamber and the environmental temperature in the heating chamber, with real time monitoring and humidity and temperature regulation, make paper humidifying preliminary treatment can reach better effect.
The rotary printing line comprises the same structure and benefits as the online humidity control device 120 in the previous embodiment. The structure and advantageous effects of the online humidity control apparatus 120 have been described in detail in the foregoing embodiments, and are not described again here.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. The utility model provides an online humidifying device for treating online humidifying to the waiting printing paper of lithography apparatus, its characterized in that includes: set gradually in humidification chamber and heating chamber on lithography apparatus's the transmission line, be provided with the humidifier in the humidification chamber, be equipped with the heater in the heating chamber, the paper of treating the printing passes through the transmission of transmission line with lithography apparatus's drawing is passed through in proper order humidification chamber humidification the heating chamber heating.
2. The online humidity control apparatus according to claim 1, wherein a humidity detector is further provided in the humidification chamber for detecting the humidity in the humidification chamber, and the ambient humidity in the humidification chamber is 70% to 80%.
3. The online humidity control apparatus according to claim 1, wherein the heater is an infrared heater.
4. The online humidity control apparatus according to claim 2, wherein a temperature detector is further provided in the heating chamber to detect a temperature in the heating chamber, and an ambient temperature in the heating chamber is 200 ℃ to 300 ℃.
5. The online humidity conditioning apparatus of claim 4, further comprising a controller electrically connected to the humidifier, the humidity detector, the heater, and the temperature detector, respectively.
6. The online humidity control apparatus according to claim 1, wherein the humidifying chambers and the heating chambers are provided in at least three groups, respectively, and the humidifying chambers are provided at intervals between two adjacent groups of the heating chambers.
7. A rotary printing line, characterized in that it comprises a traction device, a transmission line and a feeding device, an online humidity-regulating device and a printing device according to any claim 1-6, which are arranged in sequence on the transmission path of the transmission line, wherein the feeding device is preset with paper to be printed and connected with the traction device, and the paper to be printed is transmitted and printed on the transmission path of the transmission line by the traction of the traction device.
8. The rotary printing line of claim 7, further comprising an overall controller, wherein the overall controller is electrically connected to the traction device and the online humidity control device, respectively.
9. The rotary printing line of claim 7, wherein the conveyor line comprises a frame and a plurality of mutually parallel rollers rotatably disposed on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220225561.1U CN216860928U (en) | 2022-01-26 | 2022-01-26 | Online humidifying device and rotary printing line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220225561.1U CN216860928U (en) | 2022-01-26 | 2022-01-26 | Online humidifying device and rotary printing line |
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| Publication Number | Publication Date |
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| CN216860928U true CN216860928U (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220225561.1U Active CN216860928U (en) | 2022-01-26 | 2022-01-26 | Online humidifying device and rotary printing line |
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| CN (1) | CN216860928U (en) |
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- 2022-01-26 CN CN202220225561.1U patent/CN216860928U/en active Active
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