CN120056611B - A high-efficiency drying device for spray printing media - Google Patents
A high-efficiency drying device for spray printing mediaInfo
- Publication number
- CN120056611B CN120056611B CN202510304407.1A CN202510304407A CN120056611B CN 120056611 B CN120056611 B CN 120056611B CN 202510304407 A CN202510304407 A CN 202510304407A CN 120056611 B CN120056611 B CN 120056611B
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- Prior art keywords
- drying
- air
- baffle
- controller
- feeding channel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0022—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using convection means, e.g. by using a fan for blowing or sucking air
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- Drying Of Solid Materials (AREA)
Abstract
The invention discloses high-efficiency drying equipment for spraying printing media, which comprises an equipment frame body, a drying device and a main control unit, wherein the main control unit comprises a controller and a control panel, the drying device comprises a drying box, a heat insulation structure and a circulating air drying system which are arranged on the equipment frame body, the circulating air drying system is provided with a temperature measuring unit, the drying box is provided with a feeding channel, and the circulating air drying system is arranged on one side of the feeding channel, and a ventilation separator is arranged between the circulating air drying system and the feeding channel.
Description
Technical Field
The invention relates to the technical field of spray printing medium drying, in particular to efficient drying equipment for spray printing medium.
Background
The spray painting printing material drying and drying equipment is a core post-processing device in a digital printing production chain and is mainly used for accelerating the solidification process of solvent type, UV type or water-based ink. The equipment realizes the directional drying of the spray painting products made of different materials such as the lamp cloth, the PVC film, the vehicle body paste and the like by combining the technologies such as hot air circulation, infrared radiation, ultraviolet curing and the like and matching with a temperature control system, a conveyor belt mechanism and an intelligent monitoring module. The modern high-end machine type adopts a partition temperature control design generally, can automatically adjust a working range of 30-120 ℃ according to the thickness of materials and the characteristics of ink, is provided with a wind speed adjustable device to avoid material curling, and part of equipment is integrated with a VOCs waste gas treatment system to meet the environmental protection requirement.
In the spray painting process, the necessity of drying equipment is mainly characterized in that firstly, insufficiently cured ink can cause the reduction of color saturation, edge halation and insufficient adhesive force to directly influence the weather resistance and the display period of outdoor advertisements, secondly, flexible materials are unevenly heated and are easy to generate deformation and fold, professional drying equipment can maintain the flatness of the materials through a balanced thermal field, and furthermore, efficient drying (the drying time is usually required to be compressed to 5-30 s) is the key for ensuring continuous operation of a production line and directly influences daily productivity of enterprises. Particularly in the multicolor overprinting process, the layer-by-layer drying can avoid color penetration, and ensure that the image precision reaches the industrial standard above 720 dpi.
The patent application No. 2018112780055 discloses a woven ribbon double-sided printing and drying device, the drying mechanism of the technical scheme is large in drying range and long in drying time, ink on the woven ribbon can be effectively dried, halation is avoided, the patent application No. 2019220898275 discloses a double-sided flag printer vertical type drying device, the device can meet the requirement that a double-sided flag printer can simultaneously dry two sides of cloth, the cloth is heated uniformly, hot air drying equipment in the prior art is of an open structure design, heat efficiency is insufficient, temperature control deviation of air outlet temperature fluctuation +/-5 ℃ exists, penetrating power is weak, surface drying and internal wetting phenomena are easy to occur when thickened materials are processed, finished product qualification rate is reduced, heat loss is caused, heat utilization rate is low, and energy consumption cost is increased.
The chinese patent with application number "2024110952777" discloses a stereograph spray-painting printing device, the device is through two hoses with the hot-blast transport that the fan blown to between the inside of two safety covers, print the spray-painting on the base plate and dry, the drying device of this equipment has the outstanding design problem of current traditional hot-blast drying equipment, intelligent degree is not enough, and current market mainstream drying equipment is more than 70% middle-end equipment and lacks on-line humidity monitoring, still rely on experience setting parameter, lead to the material to surpass 12% of drying rate, the disqualification rate is high.
Disclosure of Invention
The invention aims to provide high-efficiency drying equipment for spraying printing media, which not only avoids heat energy loss caused by heat dissipation in the hot air drying process and improves the heat energy utilization rate, but also can accurately control the drying temperature, provide different hot air temperatures for different materials and printing ink amounts and improve the product qualification rate so as to solve the problems in the prior art.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the utility model provides a high-efficient drying equipment for spraying print medium, includes the equipment support body, establishes drying device and the master control unit on the equipment support body, the master control unit includes the controller and with controller electric connection's control panel, drying device is including establishing the drying cabinet on the equipment support body, establish insulation construction on the drying cabinet and establish the circulation wind drying system in the drying cabinet, circulation wind drying system and controller electric connection, circulation wind drying system is equipped with temperature measurement unit, temperature measurement unit and controller electric connection, the drying cabinet is equipped with the pay-off passageway, the pay-off passageway runs through the drying cabinet, circulation wind drying system establishes in pay-off passageway one side and is equipped with ventilation spacer between circulation wind drying system and the pay-off passageway.
Further, the circulating air drying system comprises an air duct plate arranged in the drying box, a plurality of air circulation units arranged on the air duct plate and a plurality of heat supply units arranged on positions of the air duct plate corresponding to the air circulation units, wherein air supply holes are formed in mounting positions of the air duct plate corresponding to the air circulation units, a plurality of circulating air holes are formed in one ends, far away from the air circulation units, of the air duct plate, and the air circulation units and the heat supply units are electrically connected with the controller.
Furthermore, the temperature measuring unit is arranged at two ends of the heat supply unit, the temperature measuring unit is a temperature detecting sensor, and the temperature detecting sensor is electrically connected with the controller.
Further, the installation positions of the air circulation units are divided into a left group and a right group along the feeding direction and are alternately distributed on the air duct plate, a heat supply unit is installed on one side, close to the ventilation isolation piece, of the air duct plate, and the air circulation units are installed on one side, far away from the ventilation isolation piece, of the air duct plate.
Further, a rotating speed monitoring device is arranged at the installation position of the wind circulation unit, and the rotating speed monitoring device is electrically connected with the controller.
Further, the drying cabinet includes the protection baffle, establishes two connecting plates in the protection baffle both sides and the backplate that sets up relatively with the protection baffle, be equipped with the heat preservation support shell between the connecting plate, the outside of protection baffle is equipped with protection casing hole board to be used for buffering other objects to the impact force of protection baffle.
Still further, the insulation construction includes broad body heat preservation shell, establishes the heat preservation baffle in broad body heat preservation shell both sides and establishes the back heated board in the backplate outside, broad body heat preservation shell is established between protection baffle and heat preservation support shell, every the heat preservation baffle is established in the connecting plate outside of corresponding side.
Further, a guiding mechanism is arranged in the feeding channel and close to the feeding hole, a hot air baffle is arranged at the feeding hole of the feeding channel, a water draining pipe is communicated with a connecting plate on one side of the hot air baffle, the horizontal position of the water draining pipe is lower than that of the hot air baffle, and the horizontal position of the guiding mechanism is lower than that of the hot air baffle.
Further, a base paper film uncovering shaft is arranged below the drying box and used for changing the conveying direction of the drying medium.
Further, a winding device is arranged at a position, close to a discharge hole of the drying box, on the equipment frame body, and comprises a fixed roller device arranged on one side of the equipment frame body, a sliding rail transversely arranged on the equipment frame body and a sliding roller connected to the sliding rail in a sliding manner.
The semi-closed type drying box with the heat preservation structure has the advantages that heat loss in the hot air drying process is avoided, the heat utilization rate is improved, the consistency of the temperature in the drying box is guaranteed through the circulating air drying system, the effects of integral drying and the same drying effect are achieved, meanwhile, the temperature measuring unit is arranged on the circulating air drying system, the controller precisely controls the drying temperature of the circulating air drying system through signal feedback of the temperature measuring unit, and different hot air temperatures can be provided for different materials and printing ink quantities.
Drawings
FIG. 1 is a block flow diagram of a control unit provided by the present invention;
fig. 2 is a perspective view of the efficient drying apparatus provided by the present invention;
FIG. 3 is a front view of the circulated air drying system provided by the present invention;
FIG. 4 is a partial cross-sectional view of A-A of FIG. 3;
FIG. 5 is an exploded view of the circulated air drying system according to the present invention;
Fig. 6 is a side view exploded view of the circulated air drying system provided by the present invention.
The figure is marked with the specification of 100, equipment frame body, 110, universal wheels, 120, supporting and adjusting seat, 200, control panel, 300, drying box, 310, air duct plate, 311, air supply hole, 312, circulating air hole, 320, air circulation unit, 330, heating unit, 340, protective baffle, 350, connecting plate, 351, drain pipe, 360, rear baffle, 370, hot air baffle, 380, bottom paper film uncovering shaft, 390, ventilation separator, 400, temperature measuring unit, 500, heat preservation supporting shell, 600, protective cover hole plate, 710, wide heat preservation shell, 720, heat preservation separator, 730, heat preservation plate, 800, guiding mechanism, 900, winding device, 910, fixed roller device, 920, sliding rail, 930 and sliding roller.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Examples are as follows:
As shown in fig. 2 and 3, the efficient drying device for spraying printing medium includes a device frame 100, a drying device arranged on the device frame 100, and a main control unit, wherein four universal wheels 110 and four supporting adjustment seats 120 are installed below the device frame 100, the supporting adjustment seats 120 are preferably adjusting foot cups, the universal wheels 110 and the supporting adjustment seats 120 facilitate the movement and placement of the drying device according to the layout of a device site, the main control unit includes a controller and a control panel 200 electrically connected with the controller, a main chip of the controller is a programmable MCU with a model number STSPIN F0, the control panel 200 is a capacitive touch screen with a model number Clea rPad 7300, the drying device includes a drying box 300 arranged on the device frame 100, a heat insulation structure installed on the drying box 300 through fasteners, and a circulating air drying system installed in the drying box 300 through bolts, the circulating air drying system is electrically connected with the controller, the circulating air drying system is provided with a temperature measuring unit 400, the temperature measuring unit 400 is electrically connected with the controller, and the temperature measuring unit 400 is arranged at two ends of the heating unit 330.
As a technical solution of this embodiment, further, the circulating air drying system shown in fig. 5 includes an air duct plate 310 disposed in the drying box 300, four air circulation units 320 disposed on the air duct plate 310, and four heat supply units 330 disposed on positions of the air duct plate 310 corresponding to the air circulation units 320, where the four heat supply units 330 are mounted on the air duct plate 310 through mounting frames, four air supply holes 311 are formed on the air duct plate 310 corresponding to mounting positions of the air circulation units 320, a plurality of circulating air holes 312 are formed on an upper half portion of the air duct plate 310, the circulating air holes 312 are distributed on an upper portion of the air duct plate 310, and the air circulation units 320 and the heat supply units 330 are electrically connected with the controller.
Wherein, four wind circulation unit 320 are all the cross flow fan structure of same model, wind circulation unit 320's air outlet all establishes in corresponding air supply hole 311 department, air supply hole 311 is rectangular shape structure, with wind circulation unit 320's air outlet adaptation, four heating unit 330 are the PTC heat-generating body structure that the model is the same, every PTC heat-generating body is single heat-generating structure, every heating unit 330's mounted position is established on air supply hole 311 and is set up relatively with wind circulation unit 320's air outlet, still install temperature measurement unit 400 on the mounting bracket at heating unit 330 both ends, temperature measurement unit 400's mounted position is close to ventilation isolator 390.
Specifically, the drying oven 300 shown in fig. 4,5 and 6 includes a protective baffle 340, two connection plates 350 disposed on two sides of the protective baffle 340, and a rear baffle 360 disposed opposite to the protective baffle 340, a heat insulation support shell 500 is disposed between the connection plates 350, and a protective cover hole plate 600 is disposed on the outer side of the protective baffle 340 for buffering impact force of other objects on the protective baffle 340; the heat insulation structure comprises a wide heat insulation shell 710, heat insulation partition plates 720 arranged at two sides of the wide heat insulation shell 710 and a rear heat insulation plate 730 arranged at the outer side of the rear baffle plate 360, wherein the wide heat insulation shell 710 is arranged between a protection baffle 340 and a heat insulation support shell 500, each heat insulation partition plate 720 is arranged at the outer side of a connecting plate 350 at the corresponding side, wherein the heat insulation materials of the wide heat insulation shell 710, the heat insulation partition plates 720 and the rear heat insulation plate 730 are polyurethane (PUR/PIR) foam plates, a temperature measuring unit 400 is a temperature sensor of a K-type thermocouple, PT100 and NTC temperature measuring elements can be selected according to the customized requirements, the temperature measuring unit 400 is electrically connected with a controller, a feeding channel is arranged from top to bottom of the drying box 300 for printing medium to pass through, the drying operation is carried out on the drying box, the drying equipment is arranged at the discharge end of the large-sized spray painting printing equipment, the support adjustment seat 120 is adjusted, and the head end of the printing medium is led into the feeding channel, therefore, compared with the printing drying equipment in the prior art, the drying equipment of the application can be used in combination with various large-sized spray painting printing equipment, the feeding channel penetrates through the drying box 300, the drying circulation system is arranged at one side of the drying channel and is provided with a ventilation and a ventilation isolation part 390, a ventilation part 390 is preferably arranged between the ventilation part and a ventilation part 390, the installation positions of the air circulation units 320 are divided into a left group and a right group along the feeding direction, and the two groups of air circulation units 320 are alternately distributed on the air duct plate 310, so that deformation and wrinkling of the flexible material caused by uneven heating are avoided.
In addition, as shown in fig. 4, the heat supply unit 330 is installed on the air duct plate 310 near one side of the ventilation spacer 390, the air circulation unit 320 is installed on one side of the air duct plate 310 far away from the ventilation spacer 390, the included angle formed by the blowing direction of the air circulation unit 320 and the feeding channel is greater than 90 °, the airflows generated by the four air circulation units 320 form high-temperature airflows through the corresponding heat supply units 330, the high-temperature airflows enter the feeding channel through the ventilation spacer 390, act on the printing medium to dry the printing medium, form a negative pressure space in the heat insulation support shell 500 after the air circulation unit 320 is started, and form a high-pressure space in the feeding channel, so that the hot air airflows in the feeding channel dry the printing medium, the air temperature is reduced, the low-temperature airflows enter the space of the heat insulation support shell 500 through a plurality of circulating air holes 312 on the upper part of the air duct plate 310, and are pumped to the heat supply units 330 through the low-temperature airflows, the four air circulation units 320 are heated to form high-temperature airflows, the printing medium is continuously dried through the corresponding heat supply units 330, the four air circulation units 320 are matched with the corresponding heat supply units 330, the air circulation units 320 can form a regional circulation in the cavity of the drying box 300, the printing medium is enabled, the drying medium is prevented from being uniformly distributed in the air circulation, the outdoor part is not to be saturated, the outdoor air is not affected by the outdoor air, the outdoor air is not saturated, the outdoor air is not can be fully printed, the outdoor, the air is fully can be fully polluted, and the air-drying and the air is fully, and the weather-resistant, and the weather can be well, and the weather-cooled, and the weather can be well and the dry and has good.
The existing printing and drying equipment needs the working temperature of printing medium drying at 50-120 ℃ according to the material thickness and the service scene of the printing medium, the drying temperature of the equipment is set to be four levels of small ink volume temperature LT, medium ink volume temperature MT, high ink volume temperature HT and ultra-high ink volume temperature UT through a controller, the corresponding temperatures are respectively 70 ℃, 80 ℃,90 ℃ and 100 ℃, the standard is set as the ink coverage rate Lc of the printing medium,
Drying a printing medium with the ink coverage rate Lc being less than or equal to 20% by LT;
printing media with the ink coverage rate of 20% < Lc less than or equal to 50% are dried by MT;
printing media with ink coverage of 50% < Lc < 80% are dried with HT;
a print medium having an ink coverage of 80% < Lc is subjected to a drying operation with UT;
In the actual equipment assembling process, according to the matched printing equipment, printing and drying requirements and the specific structure of the drying equipment, the air circulation unit 320 can select an axial flow fan and a turbine fan, and the heat supply unit 330 can select a stainless steel heating pipe, an infrared quartz heating pipe and an alloy electric wire heating piece.
The heating unit 330 of the drying device is electrically connected with the controller through the driving of the heating unit, the driving of the heating unit is a semiconductor switching device of MOSFET or IGBT, before the drying work starts, the drying temperature required by the corresponding level is set through the control panel 200, the temperature measuring unit 400 of the controller sends the pulse signal of the temperature in the feeding channel to the controller in real time, the controller performs comparison calculation, the main chip directly drives the MOSFET (low voltage) or the IGBT (high voltage) through PWM (pulse width modulation) signals or PID (proportion integration differentiation) control algorithm to control the current on-off of the heating unit 330, and then the drying temperature of the printing medium of each level is controlled more accurately, and on the premise of saving energy and improving the heat energy efficiency, the over-drying rate of the printing medium is reduced, thereby improving the product percent of pass.
As a technical scheme of the embodiment, further, as shown in fig. 4, a rotational speed monitoring device is provided at an installation position of the wind circulation unit 320, the rotational speed monitoring device is a photoelectric sensor with a model of EE-SPY402, the rotational speed monitoring device is electrically connected with a controller, a fan unit drive is electrically connected between the controller and the wind circulation unit 320, the photoelectric sensor sends a pulse signal for detecting the rotational speed to the controller, the controller compares data information and sends a command to the fan unit drive, the fan unit drive controls the rotational speed of each wind circulation unit 320, namely a cross flow fan, when the head end of a printing medium enters a feeding channel, the controller controls the wind circulation unit 320 to run at a low rotational speed, the rotational speed is 800±50RPM, if the head end of the printing medium passes through the feeding channel of the drying box 300, the controller controls the wind circulation unit 320 to run at a high rotational speed, and the rotational speed is 4000±500RPM.
As a technical scheme of this embodiment, further, as shown in fig. 2 and fig. 4, a guiding mechanism 800 is disposed in a feeding channel near a position of a feed inlet, a hot air baffle 370 is disposed at the feed inlet of the feeding channel, the hot air baffle 370 can block heat energy airflow conveyed by the air circulation unit 320 from being dispersed from the feed inlet, and guide airflow steering is performed, so that hot air circulation is more stable, a drainage pipe 351 is communicated on a connecting plate 350 at one side of the hot air baffle 370 in order to prevent waste steam evaporated by drying ink from being dispersed into air to affect the health of staff, the horizontal position of the drainage pipe 351 is lower than the position of the hot air baffle 370, an external water collecting assembly is communicated at the water outlet end of the drainage pipe 351, and harmful waste water is conveniently treated and discharged, and the horizontal position of the guiding mechanism 800 is lower than the position of the hot air baffle 370.
As a technical solution of this embodiment, further, as shown in fig. 2, fig. 4 and fig. 5, a film uncovering shaft 380 is provided below the drying oven 300 for changing a conveying direction of a drying medium, a winding device 900 is provided on a position on the equipment frame 100 near a discharge hole of the drying oven 300, the winding device 900 includes a fixed roller device 910 provided on one side of the equipment frame 100, a sliding rail 920 transversely provided on the equipment frame 100, and a sliding roller 930 slidingly connected to the sliding rail 920, a limiting pin is provided on a sliding seat of the sliding roller 930, and according to a width of a printing medium, a relative position between the sliding roller 930 and the fixed roller device 910 is moved on the sliding rail 920, and a specific structure of the winding device 900 refers to a dual-power paper receiver disclosed in application number 2015211394168.
While the basic principles and main features of the present invention and advantages of the present invention have been shown and described above, it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments and can be embodied in other specific forms without departing from the spirit or essential features of the present invention, and therefore, the embodiments should be considered exemplary and non-limiting in all respects, the scope of the present invention is defined by the appended claims rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510304407.1A CN120056611B (en) | 2025-03-13 | 2025-03-13 | A high-efficiency drying device for spray printing media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510304407.1A CN120056611B (en) | 2025-03-13 | 2025-03-13 | A high-efficiency drying device for spray printing media |
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| Publication Number | Publication Date |
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| CN120056611A CN120056611A (en) | 2025-05-30 |
| CN120056611B true CN120056611B (en) | 2025-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202510304407.1A Active CN120056611B (en) | 2025-03-13 | 2025-03-13 | A high-efficiency drying device for spray printing media |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017109376A (en) * | 2015-12-16 | 2017-06-22 | 株式会社Ｓｃｒｅｅｎホールディングス | Drying device, printing device, and drying method |
| CN112297615A (en) * | 2019-07-26 | 2021-02-02 | 杭州宏华数码科技股份有限公司 | Spray printing medium drying device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012020507A (en) * | 2010-07-15 | 2012-02-02 | Nk Works Kk | Drying unit |
| CN216423868U (en) * | 2021-12-09 | 2022-05-03 | 郑州鸿盛数码科技股份有限公司 | Heated air circulation drying equipment suitable for ink-jet printing |
| CN221969245U (en) * | 2023-12-29 | 2024-11-08 | 广州瑞智科技有限公司 | Printing paper heating device, heating control circuit and printer |
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2025
- 2025-03-13 CN CN202510304407.1A patent/CN120056611B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017109376A (en) * | 2015-12-16 | 2017-06-22 | 株式会社Ｓｃｒｅｅｎホールディングス | Drying device, printing device, and drying method |
| CN112297615A (en) * | 2019-07-26 | 2021-02-02 | 杭州宏华数码科技股份有限公司 | Spray printing medium drying device |
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| CN120056611A (en) | 2025-05-30 |
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