CN211488427U - Gas protection device and inflation system for ultraviolet curing of plate - Google Patents

Abstract

The utility model discloses a gas protection device and an inflation system for ultraviolet curing of plates, the gas protection device for ultraviolet curing of plates comprises a shell and an inflation assembly, the shell is provided with a holding cavity, the holding cavity forms an opening at the top of the shell, the shell is provided with a cover plate which can open or close the opening, and the cover plate is provided with an irradiation window for ultraviolet light to pass through; a supporting plate assembly for placing the plate to be solidified is arranged in the accommodating cavity; the inflation assembly comprises an inflation pipe, a first valve, an air storage tank, a second valve and a diffuser which are sequentially arranged along the airflow direction, and a plurality of air outlet holes are formed in the diffuser; the diffuser is arranged in the accommodating cavity, and the inflation tube is fixed on the outer side of the shell. The utility model discloses reduce the cost of ultraviolet curing test and experiment, be convenient for going on of ultraviolet curing test and experimental work.

Description

Gas protection device and inflation system for ultraviolet curing of plate

Technical Field

The utility model belongs to the technical field of the ultraviolet curing technique and specifically relates to a gas protection device and inflation system for panel ultraviolet curing.

Background

In the conventional uv curing process, gas shielding is generally not considered to be implemented in order to save equipment cost. In order to achieve a good curing effect, ultraviolet light energy and photoinitiator content are increased to overcome oxygen inhibition, and ozone harmful to human bodies is taken away by using a heat dissipation and ventilation fan of a lamp tube. And the ultraviolet curing can greatly improve the curing rate under the condition of nitrogen protection, thereby reducing the using amount of a photoinitiator and the material cost, and simultaneously the surface performance of the coating is better. Meanwhile, the performance of the coating can be adjusted by adjusting the concentration of oxygen and utilizing oxygen inhibition. There are therefore increasing numbers of manufacturers attempting to develop coating formulations and processes under nitrogen protection.

Before the mass production of the plate is realized, plate testing and experiments are generally needed, in terms of the testing and experiment processes, the newly developed ultraviolet curing equipment with nitrogen protection is high in cost, the gas consumption is large, nitrogen preparation equipment or liquid nitrogen needs to be matched, and the required investment is larger for a company without the nitrogen preparation equipment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gas protection device and inflation system for panel ultraviolet curing solves the high-cost technical problem that current test and panel ultraviolet curing equipment exists for the experiment.

According to a first aspect of the present invention, the present invention provides a gas protection device for ultraviolet curing of a plate, comprising a housing and an inflation assembly, wherein the housing has a holding cavity, the holding cavity forms an opening at the top of the housing, the housing is provided with a cover plate capable of opening or closing the opening, and the cover plate is provided with an irradiation window for passing ultraviolet light; a supporting plate assembly for placing the plate to be solidified is arranged in the accommodating cavity; the inflation assembly comprises an inflation pipe, a first valve, an air storage tank, a second valve and a diffuser which are sequentially arranged along the airflow direction, and a plurality of air outlet holes are formed in the diffuser; the diffuser is arranged in the accommodating cavity, and the inflation tube is fixed on the outer side of the shell; and the shell is also provided with an oxygen concentration detector for detecting the oxygen concentration in the accommodating cavity.

Preferably, the one end of apron is articulated with the casing, the other end of apron is provided with the retaining member, be provided with on the outer wall of casing can with retaining member locking complex fitting piece.

Preferably, the first valve is a check valve, the gas flow direction of the check valve faces the gas storage tank, and the second valve is a pressure regulating valve.

Preferably, the supporting plate assembly comprises a supporting part and a supporting plate, a plurality of placing stations located at different heights are arranged on the supporting part, the supporting plate is configured to be placed on the placing stations located at different heights, and the supporting plate is used for placing the plate to be cured.

Preferably, the support piece comprises a bottom plate and two side plates which are fixed on the bottom plate and are parallel to each other, and the placing stations are two convex ridges which are respectively fixed on the inner side walls of the two side plates and are arranged in pairs.

Preferably, the diffuser is located the below of holding in the palm the piece, and all is provided with a plurality of bleeder vents on bottom plate and the layer board.

Preferably, the diffuser is plate-shaped and disposed in parallel with the blade.

Preferably, the irradiation window comprises a light-transmitting opening formed in the cover plate and a quartz glass plate covering the light-transmitting opening.

Preferably, the outer side wall of the shell is fixedly provided with two fixed plates, and two ends of the gas storage tank are fixedly connected with the two fixed plates respectively.

According to a second aspect of the present invention, the present invention provides an inflation system, which comprises the above gas protection device for ultraviolet curing of a plate material, and further comprises a gas mixing tank, wherein the gas mixing tank is connected with a first inflation pipeline, a second inflation pipeline and a gas outlet pipeline, the gas outlet pipeline is connected with a multi-way valve, a first gas outlet of the multi-way valve is communicated with the outside air, and a second gas outlet of the multi-way valve is connected with the inflation pipe; one end of the first inflation pipeline is connected with a nitrogen supply device, the other end of the first inflation pipeline is connected with the gas mixing tank, and a first pressure regulating valve, a first flow valve and a first flow meter are arranged in the first inflation pipeline; one end of the second inflation pipeline is connected with an air compression device, the other end of the second inflation pipeline is connected with the air mixing tank, and a second pressure regulating valve, a second flow valve and a second flow meter are arranged in the second inflation pipeline; an oxygen concentration detector is arranged in the gas mixing tank, and the oxygen concentration detector, the first pressure regulating valve, the first flow valve, the first flowmeter, the second pressure regulating valve, the second flow valve, the second flowmeter and the multi-way valve are all connected with a controller; the controller is configured to: when the air is inflated, the first air outlet is controlled to be communicated, and the second air outlet is controlled to be closed; and regulating the flow of the first flow valve and/or the second flow valve according to the oxygen concentration detected by the oxygen concentration detector until the oxygen concentration detected by the oxygen concentration detector is stabilized at a preset oxygen concentration value, and then controlling the first air outlet to be closed and the second air outlet to be communicated so as to inflate the inflation tube.

The utility model discloses in, the panel of treating the solidification can be put into the utility model discloses a gas protection device for panel ultraviolet curing's gas protection device has the gaseous environment who keeps apart with the external world, and the gas holder can store an amount of low oxygen gas mixture. During ultraviolet curing, the gas storage tank is used for filling low-oxygen mixed gas into the accommodating cavity, so that the oxygen concentration in the accommodating cavity is kept stable in a short time. The utility model discloses, need not to match such nitrogen gas of nitrogen generator and prepare equipment, can use ordinary bottled gas, compatible current ultraviolet curing equipment has reduced the cost of ultraviolet curing test and experiment, the going on of ultraviolet curing test and experimental work of being convenient for.

Meanwhile, the gas concentration in the gas protection device is uniformly distributed, the adjustable range of the target oxygen concentration is wide, and the oxygen concentration can be controlled to be any value between 0.001% and 20%.

Drawings

Fig. 1 is a schematic structural diagram of a gas protection device for ultraviolet curing of a plate according to an embodiment of the present invention;

fig. 2 is an exploded view of a gas protection device for ultraviolet curing of a plate according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a gas shield apparatus for uv curing of a sheet material according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an inflation system according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment of the utility model provides a gas protection device for panel ultraviolet curing, as shown in fig. 1-3, it includes casing 1 and gas-filled component, and casing 1 can make up into a box body structure by bottom plate, four blocks of curb plates and roof, is provided with the holding chamber in casing 1, and the holding chamber is used for placing the object, and in the ultraviolet curing process, the holding chamber keeps airtight relatively.

The accommodating cavity forms an opening at the top of the housing 1, a cover plate 3 is arranged on the housing 1, the cover plate 3 is configured to open or close the opening on the housing 1, when the cover plate 3 is opened, the plate 100 to be cured can be placed into the accommodating cavity or the cured plate 100 can be taken out through the opening, and when the cover plate 3 is closed, the accommodating cavity can be kept relatively closed to maintain a gas environment. An irradiation window through which ultraviolet light passes is arranged on the cover plate 3, and the ultraviolet light can penetrate through the irradiation window so as to carry out ultraviolet curing on the plate 100 in the accommodating cavity.

The holding cavity is internally provided with a supporting plate assembly for placing the plate 100 to be cured, after the cover plate 3 is opened, the plate 100 can be placed on the supporting plate assembly, and the supporting plate assembly can be positioned under the irradiation window. During ultraviolet curing, the ultraviolet irradiation direction can also be perpendicular to the irradiation window, so that the plate 100 is irradiated perpendicularly, and the irradiation effect on the surface of the plate 100 is more uniform.

The inflation assembly comprises an inflation pipe 21, a first valve 22, an air storage tank 23, a second valve 24 and a diffuser 25 which are arranged in sequence along the airflow direction, and the inflation pipe 21, the first valve 22, the air storage tank 23, the second valve 24 and the diffuser 25 can be connected through corresponding pipelines. The inflation tube 21 is fixed on the outer surface of the shell 1 and is used for being externally connected with a nitrogen inflation device, and the air storage tank 23 is used for storing inflated nitrogen. The diffuser 25 is arranged in the accommodating cavity, the diffuser 25 is used for diffusing and blowing out nitrogen, and a plurality of air outlet holes are formed in the diffuser 25, so that nitrogen can be uniformly blown out from a plurality of positions conveniently, and a gas environment required by ultraviolet curing can be quickly formed. The housing 1 is further fixed with an oxygen concentration detector 11, the oxygen concentration detector 11 is provided with a detection head, the detection head is arranged in the accommodating cavity to detect the oxygen concentration in the accommodating cavity, and the oxygen concentration detector 11 can further comprise a display screen for displaying the detected oxygen concentration.

The utility model discloses a use for panel ultraviolet curing's gas protection device as follows: the gas-filled tube 21 is externally connected with a nitrogen gas charging device, so that the first valve 22 is in a conducting state at least in the gas-filled direction, the nitrogen gas charging device is started to work, and nitrogen gas is charged into the gas storage tank 23. The second valve 24 may be a pressure regulating valve such that the pressure within the air reservoir 23 is greater than the pressure within the receiving chamber. After the oxygen concentration in the receiving chamber reaches the required value, the first valve 22 is closed at least in the charging direction, and the nitrogen charging device can be removed. At this time, because the gas pressure in the gas storage tank 23 is greater than the gas pressure in the accommodating cavity, nitrogen gas is continuously filled into the accommodating cavity, so that the gas pressure in the accommodating cavity keeps micro positive pressure relative to the external air, and the gas atmosphere in the accommodating cavity is ensured to be stable in a short time.

In one embodiment, the pallet assembly includes a tray 42 and a pallet 41, and the tray 42 is provided with a plurality of placing stations 43 at different heights, that is, the placing stations 43 may be distributed along the height direction of the tray 42. The pallet 41 is configured to be placed at a placement station at different heights, with the sheet material 100 placed on the pallet 41. Therefore, the position of the supporting plate 41 on the height can be adjusted, when the distance from the ultraviolet radiation source of the ultraviolet curing equipment to the cover plate 3 is relatively fixed, the distance from the plate 100 to the ultraviolet radiation source is changed equivalently, and the effect of adjusting the curing effect of the plate 100 is achieved. The closer sheet 100 is to the source of ultraviolet radiation, the higher the radiation intensity, and the farther sheet 100 is from the source of ultraviolet radiation, the lower the radiation intensity. The user can place the sheet material 100 in the appropriate placing station 43 according to the actual needs.

As shown in fig. 2, the supporting member 42 includes a bottom plate and two side plates fixed on the bottom plate and parallel to each other, a plurality of sets of convex ribs are arranged on the inner side surfaces of the side plates opposite to each other, each set of convex ribs includes two convex ribs fixed on the two side plates respectively and arranged in pairs, and each set of convex ribs forms a placing station 43. The distance between two protruding arrises of the same group is less than the width of the supporting plate 41, two ends of the supporting plate 41 are respectively placed on the two protruding arrises of the same group, and the two protruding arrises support the supporting plate 41 from two ends of the supporting plate 41. The protruding arris can be parallel to the bottom plate, and two protruding arris of the same group can be located the same height, makes layer board 41 place horizontally, keeps layer board 41's stability.

The connecting plate can be arranged between the two side plates and fixed on the bottom plate, and two ends of the connecting plate are respectively connected with the two side plates and can be respectively perpendicular to the two side plates, so that the integral structural strength can be enhanced. Therefore, the tray 42 is formed into a drawer-like structure, an opening is formed on the side surface of the tray 42 opposite to the connecting plate, a user can take the tray 42 out of the accommodating cavity, insert the supporting plate 41 into the corresponding placing station 43 from the opening position, and place the tray 42 into the accommodating cavity after the placing of the supporting plate 41 is completed. In order to prevent the holder 42 from sliding in the accommodating cavity, a plurality of limit blocks may be disposed on the inner wall of the housing 1, and when the holder 42 is placed in the accommodating cavity, the limit blocks abut against the outer side wall of the holder 42 to keep the holder 42 stable.

For the pallet assembly with this structure, the diffuser 25 may be located below the support 42, and the bottom plate of the support 42 and the pallet 41 are both provided with a plurality of ventilation holes, so that the nitrogen gas flowing out from the diffuser 25 will diffuse to the upper side of the pallet 41 through the ventilation holes, and then the whole accommodating cavity is filled. The air holes can be uniformly distributed on the supporting plate 41 and the bottom plate, so that the gas diffusion is more balanced. Since the gas protection device for ultraviolet curing of the plate material of the present embodiment has a relatively closed accommodating chamber, the diffuser 25 is disposed below the holder 42, so that the gas protection environment in the accommodating chamber can be effectively maintained. Meanwhile, the diffuser 25 does not block the ultraviolet rays from irradiating the sheet material 100, and does not affect the curing effect of the sheet material 100.

The bottom of the receiving chamber may be provided with a support shelf on which the tray 42 may be placed to support the tray 42 at a certain height, so that a diffuser 25 may be provided between the tray 42 and the bottom of the receiving chamber.

The diffuser 25 of the above embodiment is a plate-shaped structure, which is disposed in parallel with the bottom plates of the blade 41 and the tray 42. The diffuser 25 is spaced from the bottom plate of the holder 42 by a certain distance, and the diffuser 25 is spaced from the bottom of the accommodating cavity by a certain distance, so that the air outlets at the top and the bottom of the diffuser 25 are not blocked, and air can be supplied more smoothly. The diffuser 25 has a hollow cavity which communicates with the second valve 24 via a conduit, and an outlet hole in the surface of the diffuser 25 communicates with the cavity so that nitrogen can be output from the outlet hole. The gas outlet holes may be uniformly distributed on the surface of the diffuser 25, enabling more uniform diffusion of nitrogen gas. Of course, the diffuser 25 may be configured in other shapes such as a cylindrical shape, as required.

On the basis of the above-described embodiment, a specific structure of the cover plate 3 will be provided. One end of the cover plate 3 is hinged with the shell 1, the other end of the cover plate 3 is provided with a locking member 30, and a matching member which can be locked and matched with the locking member 30 is arranged on the outer wall of the shell 1. Because the hinged connection mode is adopted, the cover plate 3 is more convenient to open or close, when the cover plate 3 is in a closed state, the locking part 30 is in locking fit with the matching piece so as to keep the closed state of the cover plate 3, and after the locking fit of the locking part 30 and the matching piece is released, the cover plate 3 can be opened as required. As shown in fig. 3, the locking member 30 may be a pin penetrating through the cover plate 3, the mating member is a threaded hole opened on the housing 1, the pin is screwed into the threaded hole, the locking engagement between the locking member 30 and the mating member can be realized, and the locking engagement between the locking member 30 and the mating member can be released after the pin is screwed out of the threaded hole. Of course, the locker 30 and the engaging member may be locker assemblies engaged with each other.

The cover plate 3 is larger than the opening at the top of the housing 1, and when the cover plate 3 is closed, the lower surface of the cover plate 3 abuts against the upper end surfaces of the four side surfaces of the housing 1 to cover the opening. On the up end of four sides, be the periphery of opening, be provided with joint strip 32, when apron 3 was in the closed condition, joint strip 32 and apron 3 in close contact with had better leakproofness. The cross section of the sealing rubber strip 32 can be semicircular to enhance the contact tightness between the sealing rubber strip 32 and the cover plate 3, and further improve the sealing effect.

The irradiation window of the above embodiment comprises the light transmission opening formed in the cover plate 3 and the glass plate 31 covering the light transmission opening, the glass plate 31 may be a quartz glass plate, which is more favorable for ultraviolet light to penetrate through the glass plate 31, as shown in the figure, the glass plate 31 may cover the light transmission opening from the inner side of the cover plate 3, and the edge of the glass plate 31 is prevented from being damaged.

In one embodiment, the air reservoir 23 may be fixed to an outer side wall of the housing 1, thereby reducing the space occupied in the receiving cavity. Specifically, two fixing plates 12 are fixed on the outer side wall of the casing 1, and two ends of the gas storage tank 23 are respectively fixedly connected with the two fixing plates 12. A plurality of fixing members are further provided on the outer and inner walls of the housing 1, and the piping between the inflation pipe 21, the first valve 22, the air tank 23, the second valve 24, and the diffuser 25 can be fixed by the fixing members to keep the entire inflation assembly stable.

In one embodiment, two inflation assemblies may be provided, and the two inflation assemblies share one inflation tube 21. The two inflation pipelines can be respectively positioned at two sides of the shell 1 and finally enter the accommodating cavity from the rear side surface of the shell 1. Each inflation assembly, except for the common inflation tube 21, includes a first valve 22, a reservoir 23, a second valve 24, and a diffuser 25. Set up two sets of gas filled assembly, on the one hand can increase the gas storage volume, and on the other hand can promote the gas velocity of filling, is convenient for form the required gas protection environment of ultraviolet curing fast in the holding intracavity.

In the above embodiment, the first valve 22 may be an on-off valve or a one-way valve, and when the first valve 22 is an on-off valve, it needs to be manually adjusted by a user to perform inflation and air storage. In order to avoid the complicated manual adjustment process, the first valve 22 may be a one-way valve, the gas flow direction of the one-way valve faces the gas container 23, the inflation gas flow can smoothly pass through the one-way valve, and the gas in the gas container 23 cannot escape from the one-way valve.

The embodiment of the utility model provides an inflation system is still provided, as shown in fig. 4, it includes the gas protection device for panel ultraviolet curing of above-mentioned embodiment, still includes gas mixing tank 5, and gas mixing tank 5 is connected with first gas pipeline 51, second gas pipeline 52 and goes out gas pipeline 53, and it has connect multiple unit valve 55 to go out gas pipeline 53, and multiple unit valve 55 is provided with first gas outlet 551 and second gas outlet 552 at least, first gas outlet 551 and outside air intercommunication, and second gas outlet 552 links to each other with gas tube 21.

One end of the first inflation pipeline 51 is connected with a nitrogen supply device 511, and the other end is fixedly connected with the gas mixing tank 5. A first flow valve 512, a first pressure regulating valve 514 and a first flow meter 513 may be sequentially disposed in the first charging line 51 in the gas flow direction, the nitrogen gas supply device 511 supplies high purity nitrogen, the first flow valve 512 may regulate the flow rate in the line, the first flow meter 513 calculates the flow rate in the line, and the first pressure regulating valve 514 may regulate the gas pressure in the line. One end of the second inflation pipeline 52 is connected with an air compression device 521, and the other end is fixedly connected with the mixed air tank 5. A second flow valve 522, a second pressure regulating valve 524 and a second flow meter 523 may be sequentially disposed in the second inflation line 52 along the airflow direction, the air compression device 521 supplies compressed air, the second flow valve 522 may regulate the flow rate in the line, the second flow meter 523 calculates the flow rate in the line, and the second pressure regulating valve 524 is used for regulating the air pressure in the line.

By adjusting the two pressure regulating valves, the pressure in the two inflation pipelines can be ensured to be consistent, and the pressure of the inflation of the two pressure regulating valves determines the pressure of the air storage tank 23, so that the air storage amount in the air storage tank 23 is determined, and the time for the air storage tank 23 to stabilize the oxygen concentration in the accommodating cavity after the air outlet pipeline 53 is separated from the inflation pipe 21 is determined.

The gas mixing tank 5 is used for mixing air and pure nitrogen, and the concentration of oxygen in the gas mixing tank 5 can be changed by controlling the flow rates of the first inflation pipeline 51 and the second inflation pipeline 52 so as to adapt to the gas protection environment actually required by ultraviolet curing. An oxygen concentration detector is provided in the gas mixing tank 5 for detecting the oxygen concentration in the gas mixing tank 5. The oxygen concentration detector, the first flow valve 512, the first flow meter 513, the first pressure regulating valve 514, the second flow valve 522, the second flow meter 523, the second pressure regulating valve 524 and the multi-way valve 55 are all connected with the controller. The controller may control the first flow valve 512 and the second flow valve 522 to vary the flow in the circuit. The oxygen concentration data detected by the oxygen concentration detector and the flow data detected by the first flow meter 513 and the second flow meter 523 are transmitted to the controller. The controller may issue a control command to control the first air outlet 551 and the second air outlet 552 to be turned on or off. The controller can be a single chip microcomputer, a PLC or a DSP and the like and is used for data receiving, data calculating and instruction outputting. The controller may issue control commands to regulate the air pressure in the first inflation line 51 and the second inflation line 52 by adjusting the first pressure regulating valve 514 and the second pressure regulating valve 524.

The controller is configured to: the flow rate of the first flow valve 512 and/or the second flow valve 522 is adjusted according to the oxygen concentration detected by the oxygen concentration detector until the oxygen concentration detected by the oxygen concentration detector reaches a predetermined oxygen concentration value. The controller controls the first air outlet 551 to be conducted and the second air outlet 552 to be closed, so that the unqualified gas is discharged to the atmosphere through the first air outlet 551 before the preset value is reached. When the oxygen concentration detected by the oxygen concentration detector reaches a predetermined value and is stable, the first air outlet 551 is controlled to be closed, and the second air outlet 552 is controlled to be opened, so as to inflate the inflation tube 21. The term "stable" as used herein means that the oxygen concentration detected by the oxygen concentration detector reaches a predetermined value for a predetermined time.

Specifically, in the gas mixing process, the controller calculates a difference between the oxygen concentration in the gas mixing tank and a predetermined oxygen concentration value, and if the oxygen concentration in the gas mixing tank is greater than the predetermined oxygen concentration value, the flow of the first flow valve 512 is increased, the flow of the second flow valve 522 is decreased, or the flow increasing operation of the first flow valve 512 and the flow decreasing operation of the second flow valve 522 are performed simultaneously. Accordingly, if the oxygen concentration in the gas mixing tank is less than the predetermined oxygen concentration value, the flow of the second flow valve 522 is increased, the flow of the first flow valve 512 is decreased, or the actions of increasing the flow of the second flow valve 522 and decreasing the flow of the first flow valve 512 are performed simultaneously until the oxygen concentration in the gas mixing tank 5 reaches the predetermined oxygen concentration value.

An operation panel 54 connected with the controller can be arranged on the outer surface of the gas mixing tank 5, and a display screen and buttons are arranged on the operation panel 54 to provide a man-machine interaction function. The user can operate the button to set a predetermined oxygen concentration value, and the display screen can display an operation interface, the oxygen concentration value in the gas mixing tank 5, the gas storage amount, and the like. The use method of the inflation system of the above embodiment is as follows:

1. connecting a gas circuit: connecting a nitrogen gas supply device 511 with a first inflation pipeline 51, connecting an air compression device 521 with a second inflation pipeline 52, and connecting a second air outlet 552 with an inflation pipe 21 of a gas protection device for ultraviolet curing of the plate; the output air pressures of the nitrogen gas supply device 511 and the air compression device 521 are both set to be about 0.7 MPa.

2. The predetermined oxygen concentration value is set through the operation panel 54.

3. The pallet 41 is adjusted to the appropriate placement station 43 and the sheet material 100 is placed on the pallet 41 and the cover 3 is closed.

4. And opening the gas path, inflating the gas protection device for ultraviolet curing of the plate, comparing the oxygen concentration value detected by the oxygen concentration detector with the oxygen concentration value detected by the controller according to the set oxygen concentration value, and dynamically adjusting the mixing ratio of the high-purity nitrogen and the air through a flow regulating valve until the oxygen concentration value is stabilized near the set value.

5. The pressure value set by the second valve 24 is adjusted to control the speed of charging the air storage tank 23 into the accommodating cavity.

6. The connection between the air outlet pipeline 53 and the air charging pipe 21 is disconnected, and the air charging is closed.

7. And sending the gas protection device for ultraviolet curing of the plate into ultraviolet curing equipment for curing.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.

Claims (10)

1. A gas protection device for ultraviolet curing of plates is characterized in that: the ultraviolet-curing light source comprises a shell and an inflation assembly, wherein the shell is provided with an accommodating cavity, an opening is formed in the top of the accommodating cavity, a cover plate capable of opening or closing the opening is arranged on the shell, and an irradiation window for ultraviolet light to pass through is arranged on the cover plate; a supporting plate assembly for placing the plate to be solidified is arranged in the accommodating cavity; the inflation assembly comprises an inflation pipe, a first valve, an air storage tank, a second valve and a diffuser which are sequentially arranged along the airflow direction, and a plurality of air outlet holes are formed in the diffuser; the diffuser is arranged in the accommodating cavity, and the inflation tube is fixed on the outer side of the shell; and the shell is also provided with an oxygen concentration detector for detecting the oxygen concentration in the accommodating cavity.

2. The gas shield apparatus for uv curing of sheet material of claim 1, wherein: one end of the cover plate is hinged to the shell, the other end of the cover plate is provided with a locking piece, and a matching piece which is matched with the locking piece in a locking mode is arranged on the outer wall of the shell.

3. The gas shield apparatus for uv curing of sheet material of claim 1, wherein: the first valve is a one-way valve, the gas flow direction of the one-way valve faces the gas storage tank, and the second valve is a pressure regulating valve.

4. Gas shield apparatus for uv curing of sheets according to any of claims 1-3, characterized in that: the supporting plate assembly comprises a supporting piece and a supporting plate, a plurality of placing stations located at different heights are arranged on the supporting piece, the supporting plate can be placed on the placing stations located at different heights, and the supporting plate is used for placing plates to be solidified.

5. The gas shield apparatus for ultraviolet curing of sheet material of claim 4, wherein: the support piece comprises a bottom plate and two side plates which are fixed on the bottom plate and are parallel to each other, and the placing stations are two convex ridges which are respectively fixed on the inner side walls of the two side plates and are arranged in pairs.

6. The gas shield apparatus for ultraviolet curing of sheet material of claim 5, wherein: the diffuser is located the below of holding in the palm the piece, and all is provided with a plurality of bleeder vents on bottom plate and the layer board.

7. The gas shield apparatus for ultraviolet curing of sheet material of claim 6, wherein: the diffuser is plate-shaped and arranged parallel to the blade.

8. Gas shield apparatus for uv curing of sheets according to any of claims 1-3, characterized in that: the irradiation window comprises a light transmitting opening formed in the cover plate and a quartz glass plate covering the light transmitting opening.

9. Gas shield apparatus for uv curing of sheets according to any of claims 1-3, characterized in that: the outer side wall of the shell is fixedly provided with two fixing plates, and two ends of the gas storage tank are fixedly connected with the two fixing plates respectively.

10. An inflation system, which is characterized by comprising the gas protection device for ultraviolet curing of a plate material as claimed in any one of claims 1 to 9, and further comprising a gas mixing tank, wherein the gas mixing tank is connected with a first inflation pipeline, a second inflation pipeline and a gas outlet pipeline, the gas outlet pipeline is connected with a multi-way valve, a first gas outlet of the multi-way valve is communicated with the outside air, and a second gas outlet of the multi-way valve is connected with the inflation pipe; one end of the first inflation pipeline is connected with a nitrogen supply device, the other end of the first inflation pipeline is connected with the gas mixing tank, and a first pressure regulating valve, a first flow valve and a first flow meter are arranged in the first inflation pipeline; one end of the second inflation pipeline is connected with an air compression device, the other end of the second inflation pipeline is connected with the air mixing tank, and a second pressure regulating valve, a second flow valve and a second flow meter are arranged in the second inflation pipeline; an oxygen concentration detector is arranged in the gas mixing tank, and the oxygen concentration detector, the first pressure regulating valve, the first flow valve, the first flowmeter, the second pressure regulating valve, the second flow valve, the second flowmeter and the multi-way valve are all connected with a controller; the controller is configured to: when the air is inflated, the first air outlet is controlled to be communicated, and the second air outlet is controlled to be closed; and regulating the flow of the first flow valve and/or the second flow valve according to the oxygen concentration detected by the oxygen concentration detector until the oxygen concentration detected by the oxygen concentration detector is stabilized at a preset oxygen concentration value, and then controlling the first air outlet to be closed and the second air outlet to be communicated so as to inflate the inflation tube.

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