CN219168807U - A photocuring system for degradable coating film - Google Patents
A photocuring system for degradable coating film Download PDFInfo
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- CN219168807U CN219168807U CN202320245972.1U CN202320245972U CN219168807U CN 219168807 U CN219168807 U CN 219168807U CN 202320245972 U CN202320245972 U CN 202320245972U CN 219168807 U CN219168807 U CN 219168807U
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Abstract
The utility model discloses a photocuring system for a degradable coating film, which comprises a light-permeable degradable film material belt, an unreeling device, a coating device and a reeling device, wherein the light-permeable degradable film material belt is arranged on the coating device; the degradable film material belt is transmitted from the unreeling device, is transmitted to the coating device for coating, is transmitted to the oven for drying after passing through the coating device, is cured by the first light curing device and the second light curing device in sequence, and is finally reeled by the reeling device; the first light curing device and the second light curing device are matched, the illumination intensity of the LED lamp strip of the first light emitting unit is larger than that of the LED lamp strip of the second light emitting unit, and the damage to the surface of the degradable film material strip caused by long-time strong light irradiation is avoided; meanwhile, the LED lamp strip and the strip-shaped lens are combined, so that lamplight uniformly irradiates on the degradable film material strip, and the reflection unit is combined to reflect the light transmitted through the degradable film material strip, so that the energy utilization rate is improved.
Description
Technical Field
The utility model belongs to the technical field of curing of degradable coating films, and particularly relates to a photo-curing system for a degradable coating film.
Background
In the process of preparing the degradable coating film, the curing of the coating is an important technical link; the existing curing system for coating production adopts ultraviolet light to directly irradiate the coating, and the coating is cured by the photochemical reaction of the photoinitiator on the coating.
At present, a plurality of ultraviolet lamp tube groups are generally arranged in a curing system on the market to cure the coated raw materials; although the arrangement of the plurality of ultraviolet lamp tube groups is favorable for improving the curing efficiency of the coating, the degradable coating film is generally transparent, so the arrangement of the plurality of ultraviolet lamp tube groups can cause energy loss after lamplight penetrates through the film material, and the energy utilization rate is low; meanwhile, in the coating curing process, the surface of the coated film product is damaged due to improper light intensity control of a curing system or uneven irradiation of ultraviolet light on the surface of the coated film product, and the product yield is seriously affected.
For example, a UV curing device with chinese patent publication No. CN208288391U adopts a plurality of groups of UV lamps to form a lamp group, and the UV lamp group is mounted on a rotating device, when the device is temporarily stopped, the UV lamp group can be rotated to make its heat radiation leave the film, so as to prevent the light intensity of the curing device from being too high to affect the film; however, the heating intensity on the film is regulated by the rotating device, and the power of the UV lamp is not reduced, so that the UV lamp is used for a long time, the energy consumption is huge, and the UV lamp is not beneficial to long-term production and use.
Therefore, in order to solve the above problems of the curing system of the existing coating process, a photo-curing system for the degradable coating film is needed.
Disclosure of Invention
The present utility model provides a photo-curing system for a degradable coating film, which overcomes the above-mentioned problems of the related art.
The technical scheme of the utility model is realized as follows: a photocuring system for a degradable coating film comprises a light-permeable degradable film material belt, an unreeling device, a coating device and a reeling device; the degradable film material belt is transmitted from the unreeling device, is transmitted to the coating device for coating, and is reeled by the reeling device;
an oven, a first light curing device and a second light curing device are sequentially arranged between the coating device and the winding device;
the degradable film material belt is conveyed to an oven for drying after passing through the coating device, then is cured through the first light curing device and the second light curing device in sequence, and finally is wound by the winding device.
Preferably, each light curing device comprises a shell, a hollow inner cavity is arranged in the shell, a lamp groove is arranged at the top of the inner cavity, and a plurality of groups of first light emitting units which emit light downwards are arranged in the lamp groove of the first light curing device; a plurality of groups of second light-emitting units which emit light downwards are arranged in the lamp groove of the second light-curing device;
each light-emitting unit is provided with an LED light bar and a strip-shaped lens, and the illumination intensity of the LED light bar of the first light-emitting unit is different from that of the LED light bar of the second light-emitting unit;
the inner cavity of each photo-curing device also comprises a plurality of supporting rollers, and the dried degradable film material belt is folded back and transmitted along the supporting rollers from bottom to top; and the number of the supporting rollers in the first light curing device is different from that in the second light curing device;
the light transmittance of the degradable film material belt is utilized, so that each layer of the degradable film material belt can be irradiated by light in the process of moving from bottom to top, and meanwhile, the light irradiated on the degradable film material belt is strengthened layer by layer from bottom to top.
The bottom of the inner cavity of each photo-curing device is arranged in a downward concave manner to form a reflecting unit; the longitudinal section of the reflecting unit is arc-shaped, and the upper surface of the reflecting unit is plated with a layer of high-specular reflection film;
the light transmitted through the degradable film material belt is reflected by the reflecting unit by further utilizing the light transmittance of the degradable film material belt, so that the energy utilization rate is improved.
Preferably, the illumination intensity of the LED light bar of the first light emitting unit is greater than the illumination intensity of the LED light bar of the second light emitting unit, so as to ensure that the coating of the degradable film material strip is substantially cured in the first light curing device;
the second light curing device is used for further enhancing the light curing effect, so that part of the coating which is not cured in the first light curing device can be cured for the second time in the second light curing device.
Preferably, the number of support rollers in the first light curing device is less than the number of support rollers in the second light curing device;
the conveying length of the degradable film material belt in the first light curing device is smaller than that in the second light curing device;
the time for carrying out strong light irradiation on the degradable film material belt in the first light curing device is shorter, and the influence of long-time strong light irradiation on the surface of the degradable film material belt is avoided.
Preferably, the first light curing device is provided with a group of the first light emitting units, and the second light curing device is provided with a group of the second light emitting units; multiple groups of first light-emitting units or second light-emitting units can be added according to the width of the degradable film material belt.
Preferably, a groove for accommodating the LED light bar is arranged above the strip-shaped lens; light rays emitted by the LED light bar are subjected to light distribution through the bar lens and then are emitted in parallel, and most of the light rays are uniformly irradiated on the degradable film material belt.
Preferably, the second light curing device is internally provided with a power adjusting device; the power regulating device comprises a PWM driver and a controller connected with the PWM driver; the controller is used for controlling the power of the LED lamp strip of the second light-emitting unit, so that the illumination intensity of the LED lamp strip of the second light-emitting unit is controlled to be smaller than that of the LED lamp strip of the first light-emitting unit.
Preferably, the left side and the right side of each photo-curing device are respectively provided with a feed inlet and a discharge outlet, and the feed inlet and the discharge outlet are arranged in parallel along the horizontal direction.
Preferably, a plurality of LED lamp beads which emit ultraviolet light are uniformly arranged along the length direction of the LED lamp strip.
Preferably, a supporting frame is further arranged below the shell of each photo-curing device.
Preferably, a plurality of traction rollers are arranged between the coating device and the oven;
a tension control unit is arranged between the unreeling device and the coating device;
the second photocuring device and the winding device are provided with a traction roller and a tension control unit;
in the tension control unit, a feedback device such as a tension sensor or a floating roller can be arranged, and the speed and the torque of the motor can be corrected in real time by adjusting through PID, so that higher tension precision is realized.
In the curing process of the degradable coating film, the tension is controlled to be uniform and consistent in the curing process by adjusting the traction roller and the tension control unit so as to improve the curing quality of the coating.
Preferably, the coating device comprises a rubber roller and a coating roller; a gap is left between the rubber roller and the coating roller for the degradable film material to pass through.
The utility model has the beneficial effects that:
(1) According to the utility model, a plurality of ultraviolet lamp tube groups are not required to be arranged, the LED lamp strips and the strip-shaped lenses are combined to enable the lamplight to uniformly irradiate on the degradable film material belt, and then the reflection unit is combined to reflect the light transmitted through the degradable film material belt, so that the energy utilization rate is improved;
(2) The first light curing device and the second light curing device are matched, the illumination intensity of the LED light bar of the first light emitting unit is larger than that of the LED light bar of the second light emitting unit, and meanwhile, the conveying length of the degradable film material belt in the first light curing device is smaller than that in the second light curing device, so that the surface of the degradable film material belt is prevented from being damaged by long-time strong light irradiation;
(3) In the curing process of the degradable coating film, the tension is controlled to be uniform and consistent in the curing process by adjusting the traction roller and the tension control unit so as to improve the curing quality of the coating.
Drawings
FIG. 1 is a schematic diagram of a photo-curing system for a degradable coating film according to the present utility model;
FIG. 2 is a schematic structural view of a first photo-curing device according to the present utility model;
FIG. 3 is a right side view of the first light curing device of FIG. 2;
FIG. 4 is a schematic structural view of a second photo-curing device according to the present utility model;
fig. 5 is a right side view of the second photo-curing device of fig. 4.
Marking:
1. an unreeling device; 2. a tension control unit; 3. a coating device; 4. a traction roller; 5. an oven; 6. a first light curing device; 61. a first light emitting unit; 7. a winding device; 8. a second light curing device; 81. a second light emitting unit; 82. a PWM driver; 83. a controller; 9. a degradable film material belt; 10. a support roller; 11. LED light bar; 12. a strip lens; 121. a groove; 13. a housing; 14. an inner cavity; 15. a reflection unit; 16. a feed inlet; 17. a discharge port; 18. and (5) supporting frames.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus 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 utility model.
As shown in fig. 1, a photocuring system for a degradable coating film comprises a light-permeable degradable film material belt 9, an unreeling device 1, a coating device 3 and a reeling device 7; the degradable film material strip 9 is transmitted from the unreeling device 1, is transmitted to the coating device 3 for coating, and is reeled by the reeling device 7;
an oven 5, a first light curing device 6 and a second light curing device 8 are also arranged between the coating device 3 and the winding device 7 in sequence;
the degradable film material belt 9 is conveyed to the oven 5 for drying after passing through the coating device 3, then is cured by sequentially passing through the first light curing device 6 and the second light curing device 8, and finally is wound by the winding device 7.
Specifically, as shown in fig. 2-5, each light curing device includes a housing 13, a hollow inner cavity 14 is provided in the housing 13, a lamp groove is provided at the top of the inner cavity 14, and a plurality of groups of first light emitting units 61 that emit light downward are provided in the lamp groove of the first light curing device 6; a plurality of groups of downward-lighting second lighting units 81 are arranged in the lamp groove of the second light curing device 8;
each light emitting unit is provided with an LED light bar 11 and a strip lens 12, and the illumination intensity of the LED light bar 11 of the first light emitting unit 61 is different from that of the LED light bar 11 of the second light emitting unit 81;
the inner cavity 14 of each photo-curing device also comprises a plurality of supporting rollers 10, and the dried degradable film material strips 9 are folded back and pass through and conveyed along the supporting rollers 10 from bottom to top; and, the number of the backup rolls 10 in the first photo-curing device 6 is different from that in the second photo-curing device 8;
the light transmittance of the degradable film material belt 9 is utilized, so that each layer of the degradable film material belt 9 can be irradiated by light in the process of moving the coated degradable film material belt 9 from bottom to top, and meanwhile, the light irradiated on the degradable film material belt 9 is strengthened layer by layer from bottom to top.
In this embodiment, as shown in fig. 3 and 5, the bottom of the inner cavity 14 of each photo-curing device is concavely disposed to form a reflecting unit 15; the longitudinal section of the reflecting unit 15 is arc-shaped, and the upper surface of the reflecting unit 15 is plated with a layer of high-specular reflection film;
the light transmitted through the degradable film material belt 9 is reflected by the reflecting unit 15 by further utilizing the light transmittance of the degradable film material belt 9 so as to improve the energy utilization rate.
Specifically, the illumination intensity of the LED light bar 11 of the first light emitting unit 61 is greater than the illumination intensity of the LED light bar 11 of the second light emitting unit 81, so as to ensure that the coating of the degradable film material strip 9 is substantially cured in the first light curing device 6;
the second light-curing means 8 serve to further enhance the light-curing effect so that part of the coating which has not yet been cured in the first light-curing means 6 can be cured a second time in the second light-curing means 8.
As shown in fig. 2 and 4, the number of the support rollers 10 in the first photo-curing device 6 is smaller than the number of the support rollers 10 in the second photo-curing device 8;
the conveying length of the degradable film material strip 9 in the first light curing device 6 is smaller than that in the second light curing device 8;
so that the time of the strong light irradiation of the degradable film material strip 9 in the first light curing device 6 is shorter, and the long-time strong light irradiation is prevented from affecting the surface of the degradable film material strip 9.
Specifically, the first light-curing device 6 is provided with a group of the first light-emitting units 61, and the second light-curing device 8 is provided with a group of the second light-emitting units 81; multiple sets of the first light emitting unit 61 or the second light emitting unit 81 may be added according to the width of the degradable film stock tape 9.
Specifically, as shown in fig. 3 and 5, a groove 121 for accommodating the LED light bar 11 is disposed above the strip lens 12; the light rays emitted by the LED light bar 11 are subjected to light distribution through the bar lens 12 and then are emitted in parallel, and most of the light rays are uniformly irradiated on the degradable film material belt 9.
Specifically, the second photo-curing device 8 is internally provided with a power adjusting device; the power adjusting device comprises a PWM driver 82 and a controller 83 connected with the PWM driver 82; the controller 83 is configured to control the power of the LED light bar 11 of the second light emitting unit 81, so as to control the illumination intensity of the LED light bar 11 of the second light emitting unit 81 to be smaller than the illumination intensity of the LED light bar 11 of the first light emitting unit 61.
Specifically, a feed inlet 16 and a discharge outlet 17 are respectively arranged at the left side and the right side of each photo-curing device, and the feed inlet 16 and the discharge outlet 17 are arranged in parallel along the horizontal direction.
Specifically, a plurality of LED beads emitting ultraviolet light are uniformly provided along the length direction of the LED light bar 11.
Specifically, a supporting frame is also provided below the housing 13 of each photo-curing device.
As shown in fig. 1, a plurality of traction rollers 4 are arranged between the coating device 3 and the oven 5;
a tension control unit 2 is arranged between the unreeling device 1 and the coating device 3;
the second photocuring device 8 and the winding device 7 are provided with a traction roller 4 and a tension control unit 2;
in the tension control unit 2, a feedback device such as a tension sensor or a dancer roll can be arranged, and the feedback device is regulated by PID, so that the motor speed and torque are corrected in real time, and higher tension precision is realized.
In the curing process of the degradable coating film, the tension of the curing process is controlled to be uniform and consistent by adjusting the traction roller 4 and the tension control unit 2 so as to improve the curing quality of the coating.
Specifically, the coating device 3 includes a rubber roller and a coating roller; a gap is left between the rubber roll and the applicator roll for the degradable film web 9 to pass through.
The specific operation flow of the photo-curing system for degradable coating film described in this embodiment is as follows:
firstly, the degradable film material belt 9 is firstly conveyed out from the unreeling device 1, and is conveyed to the coating device 3 for coating after the tension is regulated by the tension control unit 2;
secondly, the coated degradable film material belt 9 is firstly pulled by the pulling roll 4 to be conveyed to the oven 5 for drying and then conveyed to the feed inlet 16 of the first photo-curing device 6; the dried degradable film material belt 9 is folded back and transmitted in the first light curing device 6 from bottom to top along the supporting roller 10, meanwhile, the light irradiated on the degradable film material belt 9 is strengthened layer by layer from bottom to top, and finally, the light is transmitted to the feed inlet 16 of the second light curing device 8 from the discharge hole 17;
the degradable film material strip 9 which is cured by the first illumination is also folded back and conveyed along the supporting roller 10 from bottom to top in the second photo-curing device 8, and finally is conveyed out of the discharge hole 17; but the illumination intensity of the LED light bar 11 of the second light emitting unit 81 is smaller than that of the LED light bar 11 of the first light emitting unit 61, and the conveying length of the degradable film material strip 9 in the second light curing device 8 is longer than that in the first light curing device 6, so that the surface of the degradable film material strip 9 is prevented from being damaged by long-time strong light irradiation;
and finally, finishing the second light-cured degradable film material strip 9, passing through the traction roller 4 and the tension control unit 2, and finishing winding by the winding device 7.
Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.
Claims (10)
1. A photocuring system for a degradable coating film comprises a light-permeable degradable film material belt, an unreeling device, a coating device and a reeling device; the degradable film material belt is transmitted from the unreeling device, is transmitted to the coating device for coating, and is reeled by the reeling device; it is characterized in that the method comprises the steps of,
an oven, a first light curing device and a second light curing device are arranged between the coating device and the winding device in sequence,
each light curing device comprises a shell, a hollow inner cavity is formed in the shell, a lamp groove is formed in the top of the inner cavity, and a plurality of groups of first light-emitting units which emit light downwards are arranged in the lamp groove of the first light curing device; a plurality of groups of second light-emitting units which emit light downwards are arranged in the lamp groove of the second light-curing device;
each light-emitting unit is provided with an LED light bar and a strip-shaped lens, and the illumination intensity of the LED light bar of the first light-emitting unit is different from that of the LED light bar of the second light-emitting unit;
the bottom of the inner cavity of each photo-curing device is arranged in a downward concave manner to form a reflecting unit; the longitudinal section of the reflecting unit is arc-shaped, and the upper surface of the reflecting unit is plated with a layer of high-specular reflection film;
the inner cavity of each photo-curing device also comprises a plurality of supporting rollers, and the dried degradable film material belt is folded back and transmitted along the supporting rollers from bottom to top; and the number of the supporting rollers in the first light curing device is different from that in the second light curing device;
the degradable film material belt is conveyed to an oven for drying after passing through the coating device, then is cured through the first light curing device and the second light curing device in sequence, and finally is wound by the winding device.
2. The light curing system for a degradable coating film of claim 1, wherein the illumination intensity of the LED light bar of the first light emitting unit is greater than the illumination intensity of the LED light bar of the second light emitting unit;
the number of the supporting rollers in the first light curing device is smaller than the number of the supporting rollers in the second light curing device;
the transport length of the degradable film material strip in the first light curing device is smaller than the transport length in the second light curing device.
3. A photo-curing system for a degradable coating film according to claim 1, wherein a set of the first light-emitting units is provided in the first photo-curing device, and a set of the second light-emitting units is provided in the second photo-curing device.
4. The photocuring system for a degradable coating film according to claim 1, wherein a groove for accommodating the LED light bar is arranged above the strip-shaped lens; and light rays emitted by the LED lamp strips are subjected to light distribution by the strip-shaped lenses, are emitted in parallel, and uniformly irradiate on the degradable film material belt.
5. A photocuring system for a degradable coating film according to claim 1, wherein the second photocuring device is internally provided with a power adjustment device; the power regulating device comprises a PWM driver and a controller connected with the PWM driver; the controller is used for controlling the power of the LED light bar of the second light-emitting unit.
6. A photo-curing system for degradable coating film according to claim 1, wherein a feed port and a discharge port are provided on the left and right sides of each photo-curing device, respectively, the feed port and the discharge port being juxtaposed in a horizontal direction.
7. The light-curing system for a degradable coating film according to claim 1, wherein a plurality of LED beads emitting ultraviolet light are uniformly arranged along the length direction of the LED light bar.
8. A photo-curing system for degradable coating film according to claim 1, wherein a supporting frame is further provided under the housing of each photo-curing device.
9. A photocuring system for a degradable coating film according to claim 1, wherein a plurality of traction rollers are arranged between the coating device and the oven;
a tension control unit is arranged between the unreeling device and the coating device;
the second photo-curing device and the winding device are provided with a traction roller and a tension control unit.
10. A photocuring system for a degradable coating film according to claim 1, wherein the coating device comprises a rubber roller and a coating roller; a gap is left between the rubber roller and the coating roller for the degradable film material to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320245972.1U CN219168807U (en) | 2023-02-17 | 2023-02-17 | A photocuring system for degradable coating film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320245972.1U CN219168807U (en) | 2023-02-17 | 2023-02-17 | A photocuring system for degradable coating film |
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| CN219168807U true CN219168807U (en) | 2023-06-13 |
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| CN202320245972.1U Active CN219168807U (en) | 2023-02-17 | 2023-02-17 | A photocuring system for degradable coating film |
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