CN216733516U - A structure for substrate surface printing coating is dried - Google Patents
A structure for substrate surface printing coating is dried Download PDFInfo
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- CN216733516U CN216733516U CN202220240402.9U CN202220240402U CN216733516U CN 216733516 U CN216733516 U CN 216733516U CN 202220240402 U CN202220240402 U CN 202220240402U CN 216733516 U CN216733516 U CN 216733516U
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- air
- air supply
- drying
- air suction
- box
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- 239000011248 coating agent Substances 0.000 title claims abstract description 22
- 238000000576 coating method Methods 0.000 title claims abstract description 22
- 239000000758 substrate Substances 0.000 title claims abstract description 21
- 238000003854 Surface Print Methods 0.000 title description 2
- 238000001035 drying Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 8
- 239000000047 product Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000012467 final product Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model provides a structure for drying a printing coating on the surface of a substrate, which comprises an oven body and is characterized in that the upper end and the lower end in the oven body are both provided with an air supply outlet and an air suction outlet, and the air supply outlet is used for conveying hot air; the air supply outlet at the upper end is matched with the air suction inlet at the lower end; the air supply outlet at the lower end is matched with the air suction inlet at the upper end. The structure for drying the printing coating on the surface of the base material adopts the structure of air supply and air suction, so that hot air can uniformly cover the height direction in the oven under the condition of no large flow and large flow velocity, and the running cost of equipment is reduced.
Description
Technical Field
The utility model belongs to the field of printing and drying equipment, and particularly relates to a structure for drying printing paint on the surface of a substrate.
Background
In the printing process, part of products need to be coated in a large thickness full plate, and when the stiffness of the final product (the water content of the final product is required to be very low) is strictly required, the traditional drying part usually adopts a paper feeding mode of single paper, and the coated base material is ensured to be long enough in the oven through a long-distance and high-temperature oven under the condition of low speed, so that the drying of the coating and the paper is realized, the water content of the finished product is reduced, and the product requirement is met.
The existing way of printing by a flexo printing machine is used for continuous full-plate coating of coil stock, and in the aspect of an oven structure, a large box body structure is adopted, and a heat insulation layer is arranged outside the box body, so that heat loss is prevented. The coated base material is penetrated in the oven in a reciprocating manner, so that the length of the base material in the oven is as long as possible (the drying time of the base material in the oven is as long as possible) under the condition that the external size of the oven is small. The heat of whole oven derives from natural gas combustor heated air, and the air after will heating is sent into the oven through the fan inside, and the oven is inside only to install hot air outlet on the oven lateral wall, and oven upper portion or side are furnished with the return air inlet simultaneously, connect the inlet scoop of fan, form the hot air circulating system of a whole set of oven.
The existing oven is high in height, hot air is directly sent into the oven by a single fan and then is directly pumped out, air flow in the oven is very disordered, meanwhile, the temperature difference of each point in the oven is large, the drying is uneven, the substrate is easy to warp when the temperature is too high, and the substrate cannot be completely dried when the temperature is too low.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a structure for drying a printing coating on a substrate surface.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a structure for drying a printing coating on the surface of a base material comprises a drying oven body, wherein an air supply opening and an air suction opening are formed in the upper end and the lower end of the interior of the drying oven body respectively, and the air supply opening is used for conveying hot air;
wherein,
the air supply outlet at the upper end is matched with the air suction inlet at the lower end;
the air supply outlet at the lower end is matched with the air suction inlet at the upper end.
Furthermore, the upper end and the lower end of the air inlet tube respectively comprise a plurality of air supply openings and air suction openings;
a plurality of air supply ports and air suction ports at the same end are alternately arranged in an alternating mode, and a product conveying path is arranged between every two adjacent air supply ports and air suction ports.
Further, the air box comprises an upper end air supply air box, and a plurality of upper end air supply outlets are communicated with the air box;
the plurality of upper end air suction openings are communicated with the upper end air suction bellows;
the upper end air suction air box is communicated with the upper end air supply air box through a circulating pipeline.
Further, the air box comprises a lower end air supply air box, and a plurality of lower end air supply outlets are communicated with the air box;
a plurality of lower end air suction openings are communicated with a lower end air suction bellows;
the lower end air suction air box is communicated with the lower end air supply air box through a circulating pipeline.
Furthermore, the circulating pipeline is provided with a heating device and a fan.
Furthermore, the circulating pipeline is further connected with an exhaust pipeline and a fresh air inlet pipeline, and valves are arranged on the exhaust pipeline and the fresh air inlet pipeline.
Furthermore, a temperature detection device for detecting the temperature of the supplied air and a proportional valve for adjusting the proportion of the supplied air are also arranged on the circulating pipeline.
Compared with the prior art, the structure for drying the printing coating on the surface of the substrate has the following beneficial effects:
(1) according to the structure for drying the printing coating on the surface of the base material, the structure of air supply and air suction is adopted, so that hot air can uniformly cover the height direction in the oven under the condition of no large flow and large flow velocity, and the operation cost of equipment is reduced.
(2) According to the structure for drying the printing coating on the surface of the base material, two sets of hot air circulating systems are adopted in the internal and external ventilation parts of the oven body, and the two sets of circulating systems form a large circulation in the oven, so that the temperature and the air speed in the oven are more uniform, the utilization efficiency of energy is higher, and the waste is lower;
simultaneously, can carry out comprehensive and even drying to substrate tow sides from this scheme, consequently the coating layer of oven can carry out higher speed is dried.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structural principle of the present invention for drying the printing coating on the surface of the substrate.
1. An air box for supplying air at the upper end; 2. a product conveying path; 3. an air suction bellows at the upper end; 4. a lower end air suction air box; 5. a baking oven body; 6. the lower end of the air supply air box; 7. a fan; 8. a heating device; 9. a proportional valve; 10. a temperature detection device; 11. an exhaust duct; 12. a fresh air inlet pipeline; 13. a circulation pipe; 14. And (4) a valve.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are merely for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, a structure for drying a printing coating on the surface of a substrate comprises an oven body 5, wherein an air supply opening and an air suction opening are formed in the upper end and the lower end of the interior of the oven body, heating equipment 8 heats air, the temperature of the air is detected in real time through a temperature detection device 10, the heated air is sent to the air supply openings through a fan 7, and the air supply openings are used for conveying hot air to the interior of the oven body 5;
the air supply outlet at the upper end is matched with the air suction inlet at the lower end;
the air supply outlet at the lower end is matched with the air suction inlet at the upper end.
The height of the oven is designed to be high (in order to make the length of the substrate passing through the oven longer under the condition that the whole width of the oven is not changed), and at this time, the hot air flow blown out from the upper end air supply opening can hardly reach the lower end under the condition of maintaining uniform air speed, so that the temperature is uneven. This application has set up the lower extreme inlet scoop in the inboard lower part of body, cooperatees with the upper end air outlet of upper end air supply bellows 1, and the effectual upper and lower difference in temperature that has reduced just can make the hot-blast even oven lower part that reaches that the upper end supply-air outlet blew off under the circumstances that does not need big amount of wind and big velocity of wind to support, realizes the drying of substrate upper surface.
In order to further make inside temperature even, the lower extreme of this application has also set up the lower extreme supply-air outlet, has set up rather than complex upper end inlet scoop in the upper end, and two adjacent stoving passageways compensate each other, make inside temperature more even.
The utility model is not limited to the upper and lower air supply air boxes arranged in the body, and the air supply air boxes can also be arranged outside, and the air supply outlets in the air supply air boxes are communicated with the air supply air boxes outside through pipelines.
As shown in fig. 1, the upper end and the lower end both comprise a plurality of air supply ports and air suction ports;
alternate the setting between a plurality of supply-air outlets and the inlet scoop of same end, and have product conveying path 2 between adjacent supply-air outlet and the inlet scoop, as shown in fig. 1, product conveying path 2 is upper and lower circulation reciprocal, through the position design of supply-air outlet and inlet scoop, can be so that the both sides homoenergetic of product are dried in step, and one side air supply downwards, the opposite side air supply upwards, the effectual upper and lower difference in temperature that has reduced makes the product surface each point be heated more evenly.
The preferable application of the application is that an air supply air box is arranged in the air supply device, and the air supply device also comprises an upper end air supply air box 1, wherein a plurality of upper end air supply outlets are communicated with the air box; a plurality of upper end air suction ports are communicated with an upper end air suction bellows 3; the upper end air suction air box 3 is communicated with the upper end air supply air box 1 through a circulating pipeline 13; the air box is characterized by also comprising a lower end air supply air box 6, wherein a plurality of lower end air supply outlets are communicated with the air box; a plurality of lower end air suction openings are communicated with a lower end air suction bellows 4; the lower end air suction air box 4 is communicated with the lower end air supply air box 6 through a circulating pipeline 13.
Because the height of the oven body 5 is considered to be higher, if the lower end air suction opening is communicated with the upper end air supply air box 1 through the circulating pipeline 13, and the upper end air suction opening is communicated with the lower end air supply air box 6 through the circulating pipeline 13, the pipeline air resistance is very large, and the output of the fan 7 is greatly wasted. Therefore, in the present application, an external circulation ventilation system is formed by communicating the upper end air suction opening with the upper end air supply air box 1 through a circulation pipeline 13, and communicating the lower end air suction opening with the lower end air supply air box 6 through the circulation pipeline 13.
The upper end supply-air outlet and the lower end inlet scoop of the upper end supply-air bellows 1 of the application are matched, the lower end supply-air outlet and the upper end inlet scoop of the lower end supply-air bellows 6 are matched, an internal circulation drying system is formed, in the long-distance hot air conveying process, one end is adopted for air supply, and the effect of the one-end air suction mode is obviously improved.
The external circulation ventilation system and the internal circulation drying system supplement each other, and the up-and-down circulation drying cooperation is realized while external circulation is executed, so that the temperature and the wind speed in the drying oven are more uniform, the utilization efficiency of energy is higher, and the waste is lower; the temperature and the wind speed of each point inside the drying oven are uniform, and the product is not easy to warp in the drying process.
The outer wall design of the oven body 5 and the whole set of outer ventilation part completely adopts a heat-insulating sandwich structure, so that the heat loss is reduced.
The circulating pipeline 13 is provided with a heating device 8 and a fan 7, the upper and lower circulating pipelines 13 can adopt one heating device 8, each circulating pipeline 13 can also be provided with one heating device 8, and the heating devices 8 adopt various heaters or heat exchangers such as but not limited to electric heating, oil heating, steam heating and the like.
It should be noted that the circulation duct 13 of the present application is mainly used for realizing the circulation matching between the suction air box and the blowing air box, and the selection of the technical scheme is not limited to the scheme in fig. 1, and can also be realized by using other existing circulation ducts 13, so on the basis of the present application, other types of circulation ducts 13 are adopted to replace the circulation duct 13 in the present application, and the technical effects of the present application can be realized, and the present application also belongs to the protection scope of the present application.
The circulating pipeline 13 is also connected with an exhaust pipeline 11 and a fresh air inlet pipeline 12, valves 14 are arranged on the exhaust pipeline 11 and the fresh air inlet pipeline 12, the exhaust pipeline 11 is used for exhausting air, the fresh air inlet pipeline 12 is used for introducing fresh air, and the valves 14 can be manual valves 14 or electric valves 14.
The circulating pipeline 13 is also provided with a temperature detection device 10 for detecting the temperature of the supplied air and a proportional valve 9 for adjusting the proportion of the supplied air, and the proportional valve 9 is used for adjusting the proportion of the supplied air. The temperature detecting device 10 may be an existing temperature detecting device 10, such as a thermocouple, which is mainly used to collect the temperature of the air fed into the air feeding bellows, so as to adjust the power of the heating device 8, and make the air feeding temperature meet the drying requirement of the product.
When carrying out the full version coating of big thickness, again when strictly requiring again to final product's deflection (the moisture content that requires final product is very low) simultaneously, based on the structure of this application, can satisfy the two-sided oven structure of drying of substrate and reduction paper moisture content. Simultaneously, compare in prior art, the temperature is even in this oven, and energy utilization is high, can support the quick production of coil stock.
For the coating with water-resisting capability after complete curing and the product with certain requirement on final water content of the product, not only the internal water content is ensured, the internal water content is reduced, the primary curing is ensured in the first step, the water seepage capability is ensured, the water is overflowed through the temperature or the flow rate, and then the drying is carried out, so as to complete the control of the water content.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A structure for drying printing coating on the surface of a substrate comprises a drying oven body and is characterized in that an air supply outlet and an air suction outlet are arranged at the upper end and the lower end in the body, and the air supply outlet is used for conveying hot air;
wherein,
the air supply outlet at the upper end is matched with the air suction inlet at the lower end;
the air supply outlet at the lower end is matched with the air suction inlet at the upper end.
2. The structure for drying the printed coating on the surface of the substrate according to claim 1, wherein: the upper end and the lower end of the air inlet pipe respectively comprise a plurality of air supply ports and air suction ports;
a plurality of air supply ports and air suction ports at the same end are alternately arranged in an alternating mode, and a product conveying path is arranged between every two adjacent air supply ports and air suction ports.
3. The structure for drying the printed coating on the surface of the substrate according to claim 1, wherein: comprises an upper end air supply air box, wherein a plurality of upper end air supply outlets are communicated with the air box;
the plurality of upper end air suction openings are communicated with the upper end air suction bellows;
the upper end air suction air box is communicated with the upper end air supply air box through a circulating pipeline.
4. The structure for stoving of the printing coating on the surface of the substrate according to claim 1, characterized in that: comprises a lower end air supply air box, wherein a plurality of lower end air supply outlets are communicated with the air box;
a plurality of lower end air suction openings are communicated with a lower end air suction bellows;
the lower end air suction air box is communicated with the lower end air supply air box through a circulating pipeline.
5. The structure for drying a print coating on a substrate according to claim 3 or 4, wherein: the circulating pipeline is provided with a heating device and a fan.
6. The structure for drying a print coating on a substrate according to claim 3 or 4, wherein: the circulating pipeline is further connected with an exhaust pipeline and a fresh air inlet pipeline, and valves are arranged on the exhaust pipeline and the fresh air inlet pipeline.
7. The structure for drying a print coating on a substrate according to claim 3 or 4, wherein: and the circulating pipeline is also provided with a temperature detection device for detecting the temperature of the supplied air and a proportional valve for adjusting the proportion of the supplied air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220240402.9U CN216733516U (en) | 2022-01-28 | 2022-01-28 | A structure for substrate surface printing coating is dried |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220240402.9U CN216733516U (en) | 2022-01-28 | 2022-01-28 | A structure for substrate surface printing coating is dried |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216733516U true CN216733516U (en) | 2022-06-14 |
Family
ID=81917057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220240402.9U Active CN216733516U (en) | 2022-01-28 | 2022-01-28 | A structure for substrate surface printing coating is dried |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216733516U (en) |
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2022
- 2022-01-28 CN CN202220240402.9U patent/CN216733516U/en active Active
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