CN2560647Y - Rehumidifying mechanism for coating machine - Google Patents
Rehumidifying mechanism for coating machine Download PDFInfo
- Publication number
- CN2560647Y CN2560647Y CN 02237584 CN02237584U CN2560647Y CN 2560647 Y CN2560647 Y CN 2560647Y CN 02237584 CN02237584 CN 02237584 CN 02237584 U CN02237584 U CN 02237584U CN 2560647 Y CN2560647 Y CN 2560647Y
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- paper
- coating machine
- wet
- wet mechanism
- upper frame
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Abstract
The utility model relates to a humidification mechanism for a coating machine; wherein, a natural humidification mechanism (5) is arranged at the downstream of a steam-moisture adjusting mechanism (1) and a hot press mechanism (3). The natural humidification mechanism (5) is at least a natural space communicated with the atmosphere between an upper frame bearing roller (8) and a lower frame bearing roller (11), the paper-based coating product after heating and pressing enters into the natural space of the humidification mechanism, to realize balanced exchange between the paper moisture and the atmospheric moisture. Compared with the prior art, the utility model can balance the moisture in the coating product paper and in the atmosphere, so as to prevent paper deformation and ensure the quality of coating product.
Description
Technical field
The utility model relates to a kind of coating machine and goes back to wet mechanism naturally, and it is specially adapted to the coating of vacuum aluminium-plated paper.
Background technology
The coated article that with the paper is substrate needs to dry after coating, thereby make the water content of paper reduce, reduce to below 3% from 4.8-7.2% (different its water content of paper type are also different) as paper water content in the drying course after the vacuum aluminium-plated paper coating, so must be wet to returning after the paper coating oven dry, make the water vapour pressure in the paper reach the equilibrium state that equates with airborne water vapour pressure, otherwise paper fragile easily broken broken, and produce curl, ripple glaze or fold, have a strong impact on quality product.Conventional paper damping method is with the quantitative dewing of anilox roll or use the steam dewing on equipment, yet, because of the humidity difference of the South and the North, humidity difference even the humidity difference of morning, noon and afternoon within one day between every day, in fact this conventional damping method with artificial experience is difficult to paper is carried out accurate humidity control, and too high or too low paper distortion, the curling or fold of all can making of the water content of paper can not guarantee quality product.This phenomenon is an insurmountable always difficult problem, thereby has restricted the development of environmental protection wrapping material.
The content of utility model
The purpose of this utility model is exactly the above-mentioned deficiency that overcomes prior art, provides a kind of coating machine to go back to wet mechanism, makes the moisture content in the applied paper reach the equilibrium state that equates with airborne moisture content, guarantees quality product.
Coating machine of the present utility model goes back to wet mechanism, it comprises steam damping mechanism and the hot-press structure after this steam damping mechanism, be provided with nature in the described downstream that flattens mechanism and go back to wet mechanism, it comprises upper frame and underframe, alternate respectively several supporting rolls that is provided with on upper frame and underframe, and this returns the wet mechanism place for communicating with atmosphere between upper frame supports roller and underframe supporting roll at least naturally.
The utility model makes the paper coated article after the steam pressure damping be exposed to place, paper contacts with atmosphere, absorb airborne moisture content or in air, discharge moisture content, and reach the relative equilibrium of paper institute's water content and atmospheric moisture (moisture content), prevent paper distortion, thereby guaranteed the quality of coated article.
Describe the content of utility model with reference to the accompanying drawings in detail with embodiment.
Description of drawings
Fig. 1 is the synoptic diagram that the utility model coating machine goes back to wet mechanism.
Each label is represented in the accompanying drawing: 1 steam damping mechanism, and 2 paper substrate coated articles, 3 warming mills, 4 cooling rollers, 5 go back to wet mechanism naturally, 7 upper frames, 8 supporting rolls, 9 unsteady tensioning rollers, 10 underframes, 11 supporting rolls.
Embodiment
As shown in the figure, coating machine of the present utility model goes back to wet mechanism, it comprises steam damping mechanism 1 and the hot-press structure 3 after this steam damping mechanism 1, be provided with nature in the described downstream that flattens mechanism and go back to wet mechanism 5, it comprises upper frame 7 and underframe 10, alternate respectively several supporting rolls 8,11 that is provided with on upper frame 7 and underframe 10, and this returns wet mechanism 5 place for communicating with atmosphere between upper frame supports roller 8 and underframe supporting roll 11 at least naturally.In the accompanying drawings, the supporting roll on the upper frame 7 is 4, and the supporting roll on the underframe is 5, certainly, can reach practical situation (as the size of required time wet distance) as required and determine the quantity of the supporting roll of framework up and down.
Because of paper is the extremely strong hydrophilic substance of polarity, water there is extremely strong adsorption, so at the paper of coated article by above-mentioned place the time, can carry out effective water balance exchange with atmosphere, and the water content of paper can change with the variation of ambient air relative humidity, thereby can effectively prevent Deformation of Paper, guarantee the quality of coated article.
Return at above-mentioned coating machine on the basis of wet mechanism, the utility model can have following modification:
1, describedly goes back to wet mechanism 5 naturally and be provided with and have an automatic tension-adjusting device 9 at least.Naturally returning in the wet process, paper absorbs or discharges moisture content, causes the tension force of paper to change, and the purpose of the tensioning roller 9 that floats is exactly the tension force that is used for adjusting automatically or control paper.
2, described automatic tension-adjusting device 9 can be a unsteady tensioning roller.This unsteady tensioning roller can be controlled by spring, and is simple in structure.
3, described unsteady tensioning roller 9 can be used as one of described several supporting rolls 8,11.The paper tension control regulator of float tensioning roller or other form can certainly be set, as forming the complete unsteady tension system of a cover in other suitable position separately by configurations such as department's clothes motor and high precision cylinders.
4, described hot-press structure 3 can be a warming mill, is provided with cooling roller 4 between described hot-press structure 3 and time wet mechanism 5.This cooling roller can make paper cooling, and with environmental facies with temperature under enter the balanced exchange that place and atmosphere carry out moisture content, can carry out process control better.
5, described upper frame 7, underframe 10 and on supporting roll 8,11 preferably so be provided with, be 30-50m (according to the difference of paper type and different) even applied paper passes the distance of described place.Paper substrate coated article after flattening enters nature and goes back to wet space, walks around each supporting roll 8,10, and the supporting roll of walking around is many more or paper is long more in the distance that place passes through, and itself and atmospheric water balance exchange abundant more.Test shows that for reaching the purpose of water balance exchange, paper preferably is not less than 30m in the distance that place passes through.Consider the volume of equipment or the restriction in place, paper is advisable at 30-50m by the distance of place.
Coated article promptly can rolling after returning naturally and wetting.
The utility model has solved the insurmountable so far difficult problem of paper coating both at home and abroad, has guaranteed the balance moisture content of paper and the planeness of product, the particularly the utility model physical environment applicable to different humidity effectively.
Above-mentioned just illustrative to the description of utility model with reference to embodiment, and do not constitute qualification to it.Obviously, on basis of the present utility model, can carry out many modification or improvement, but not break away from the scope that its essence and its claim are protected.
Claims (6)
1, a kind of coating machine goes back to wet mechanism, it comprises steam damping mechanism (1) and at this steam damping mechanism (1) hot-press structure (3) afterwards, it is characterized in that, be provided with nature in the described downstream that flattens mechanism and go back to wet mechanism (5), it comprises upper frame (7) and underframe (10), alternate respectively several supporting rolls (8,11) that are provided with on upper frame (7) and underframe (10), and this returns wet mechanism (5) place for communicating with atmosphere between upper frame supports roller (8) and underframe supporting roll (11) at least naturally.
2, coating machine according to claim 1 goes back to wet mechanism, it is characterized in that, describedly goes back to wet mechanism (5) naturally and is provided with and has an automatic tension-adjusting device (9) at least.
3, coating machine according to claim 2 goes back to wet mechanism, it is characterized in that described automatic tension-adjusting device is a unsteady tensioning roller (9).
4, coating machine according to claim 3 goes back to wet mechanism, it is characterized in that described unsteady tensioning roller (9) is as one of described several supporting rolls (8,11).
5, go back to wet mechanism according to the described coating machine of one of claim 1-4, it is characterized in that, between described hot-press structure (3) and time wet mechanism (5), be provided with cooling roller (4), and described hot-press structure (3) is a warming mill.
6, go back to wet mechanism according to the described coating machine of one of claim 1-4, it is characterized in that, described upper frame (7), underframe (10) and on supporting roll (11) so be provided with, be at least 30-50m even applied paper passes the distance of described place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02237584 CN2560647Y (en) | 2002-06-10 | 2002-06-10 | Rehumidifying mechanism for coating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02237584 CN2560647Y (en) | 2002-06-10 | 2002-06-10 | Rehumidifying mechanism for coating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2560647Y true CN2560647Y (en) | 2003-07-16 |
Family
ID=33711500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02237584 Expired - Lifetime CN2560647Y (en) | 2002-06-10 | 2002-06-10 | Rehumidifying mechanism for coating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2560647Y (en) |
-
2002
- 2002-06-10 CN CN 02237584 patent/CN2560647Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060531 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |