Nitrogen protection curing box

Abstract

The utility model discloses a nitrogen protection curing box, and belongs to the technical field of curing devices. The device mainly comprises a lower box body and an upper box body, a plurality of connecting plates are fixedly connected to the outer ends of the lower box body and the upper box body, first sealing rings are installed at the edge positions of the ends, close to each other, of the lower box body and the upper box body, and nitrogen spraying pipes are installed in inner cavities of the lower box body and the upper box body. According to the nitrogen protection curing box, the multiple adsorption holes are formed in the surface of the positioning table, the air exhauster is installed in the positioning table, and an adhesive tape is adsorbed to the surface of the positioning table through negative pressure, so that the adhesive tape is fixed, the flatness of the surface of the adhesive tape is guaranteed, the surface of the adhesive tape is evenly heated, and the curing speed and effect are improved; the lower box body and the upper box body can be rapidly filled with nitrogen through the arrangement of a plurality of nitrogen spraying pipes, oxygen in the lower box body and the upper box body is rapidly exhausted in cooperation with the use of an exhaust assembly, oxygen inhibition reaction of the oxygen is avoided, the adhesive tape curing effect is guaranteed, and the processing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of curing devices, and in particular to a nitrogen-protected curing box. Background Art

[0002] During the production and processing of coated tapes, after applying adhesive or coating on the tape, the tape needs to be dried and cured. The drying process is generally carried out in a drying oven. During the curing process, if there is oxygen in the curing area, oxygen inhibition reaction will occur and the ink or coating surface will not be completely cured. Light curing usually requires the protection of inert gas.

[0003] When the existing glue coating dryer dries the tape, it is difficult for the tape to be flatly attached to the production line, which causes the tape to easily wrinkle, affecting the quality of the tape. In addition, the oxygen exhaust speed in the drying box is slow, resulting in a decrease in curing efficiency.

[0004] Therefore, it is necessary to provide a nitrogen protection curing box to solve the above problems.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above-mentioned problems existing in the prior art, the problem to be solved by the present application is: to provide a nitrogen protection curing box, by opening a plurality of adsorption holes on the surface of the positioning table and installing an exhaust fan inside the positioning table, so as to utilize negative pressure to adsorb the tape to the surface of the positioning table, thereby achieving the fixation of the tape, ensuring the flatness of the tape surface, making the surface of the tape evenly heated, improving the curing speed and effect, avoiding the formation of wrinkles on the tape surface, and improving the drying quality of the tape. Through the setting of multiple nitrogen spray pipes, nitrogen can be quickly filled into the lower box and the upper box to drive away the oxygen. At the same time, in conjunction with the use of the exhaust component, the oxygen in the lower box and the upper box can be quickly discharged to avoid the oxygen inhibition reaction, thereby ensuring the curing effect of the tape and improving the processing efficiency.

[0007] The technical solution adopted by the present application to solve its technical problems is: a nitrogen protection curing box, including a lower box body and an upper box body, the outer ends of the lower box body and the upper box body are fixedly connected with multiple connecting plates, and the edge positions of the lower box body and the upper box body close to one end are installed with a first sealing ring, the inner cavities of the lower box body and the upper box body are installed with nitrogen spray pipes, the bottom end of the inner wall of the lower box body is fixedly connected with a positioning platform, the upper end of the positioning platform is provided with multiple adsorption holes connected to the inner cavity, and the inner cavity of the positioning platform is installed with a vacuum pump, the top end of the inner wall of the upper box body is installed with a radiation window, and the inner cavity of the upper box body is provided with an exhaust assembly.

[0008] Furthermore, through holes are opened at both ends of the lower box body, and second sealing rings are installed at both ends of the lower box body and the upper box body. The second sealing ring surrounds the outside of the through hole, and the bottom end of the inner wall of the through hole is at the same horizontal position as the upper surface of the positioning platform.

[0009] Furthermore, the exhaust assembly includes a one-way valve and a corrugated exhaust pipe, the one-way valve is fixedly connected to the outer end of the upper box body, the corrugated exhaust pipe is installed at the inner end of the upper box body, and the corrugated exhaust pipe is connected to the one-way valve.

[0010] Furthermore, the exhaust assembly also includes a servo motor, which is installed on the inner wall of the upper box body, and the output end of the servo motor is fixedly connected to a reciprocating screw rod, a matching screw sleeve is installed on the reciprocating screw rod, and a baffle is fixedly connected to the outer end of the screw sleeve.

[0011] Furthermore, the baffle is slidably connected to the inner wall of the upper box body, and the outer end of the baffle is fixedly connected to a limit rod, the limit rod is slidably connected to the corrugated exhaust pipe, and a spring is sleeved on the outer end of the limit rod, and both ends of the spring are respectively fixedly connected to the corrugated exhaust pipe and the limit rod.

[0012] Furthermore, a third sealing ring is installed on one end of the corrugated exhaust pipe and the baffle plate close to each other, an air inlet hole connected to the inner cavity of the corrugated exhaust pipe is opened at the end of the corrugated exhaust pipe close to the baffle plate, an isolation membrane is installed on the inner wall of the air inlet hole, and the third sealing ring surrounds the outside of the air inlet hole.

[0013] The beneficial effects of the present application are as follows: the nitrogen protection curing box provided by the present application, by opening a plurality of adsorption holes on the surface of the positioning platform and installing an exhaust fan inside the positioning platform, thereby utilizing negative pressure to adsorb the tape to the surface of the positioning platform, thereby achieving fixation of the tape, ensuring the flatness of the tape surface, allowing the surface of the tape to be heated evenly, thereby improving the curing speed and effect, avoiding the formation of wrinkles on the tape surface, and improving the tape drying quality; through the provision of a plurality of nitrogen spray pipes, nitrogen can be quickly filled into the lower box body and the upper box body to drive away oxygen; at the same time, in conjunction with the use of an exhaust component, the oxygen in the lower box body and the upper box body can be quickly discharged to avoid oxygen inhibition reaction, thereby ensuring the tape curing effect and improving processing efficiency.

[0014] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure;

[0017] Figure 2 Schematic diagram of the internal structure of the lower box;

[0018] Figure 3 Schematic diagram of the internal structure of the upper box;

[0019] Figure 4 It is a schematic diagram of the exhaust assembly structure;

[0020] Figure 5 Schematic diagram of the partial explosion structure of the exhaust component.

[0021] Among them, the reference numerals in the figure are:

[0022] 1. Lower box body; 2. Upper box body; 3. Connecting plate; 4. First sealing ring; 5. Nitrogen spray pipe; 6. Positioning platform; 7. Through hole; 8. Second sealing ring; 9. Exhaust assembly; 901. Servo motor; 902. Reciprocating screw rod; 903. Screw sleeve; 904. One-way valve; 905. Corrugated exhaust pipe; 906. Baffle; 907. Limit rod; 908. Spring; 909. Isolation membrane; 910. Third sealing ring; 10. Vacuum pump; 11. Adsorption hole; 12. Radiation window. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] like Figure 1-5 As shown, the present application provides a nitrogen protection curing box, including a lower box body 1 and an upper box body 2, the outer ends of the lower box body 1 and the upper box body 2 are fixedly connected with a plurality of connecting plates 3, and the edge positions of the lower box body 1 and the upper box body 2 close to one end are both installed with a first sealing ring 4, the inner cavities of the lower box body 1 and the upper box body 2 are both installed with a nitrogen spray pipe 5, the bottom end of the inner wall of the lower box body 1 is fixedly connected with a positioning platform 6, the upper end of the positioning platform 6 is provided with a plurality of adsorption holes 11 connected with the inner cavity, and the inner cavity of the positioning platform 6 is installed with a vacuum pump 10, the top end of the inner wall of the upper box body 2 is installed with a radiation window 12, and the inner cavity of the upper box body 2 is provided with an exhaust component 9.

[0026] During the production and processing of coated tapes, after applying adhesive or coating on the tape, the tape needs to be dried and cured. The drying process is generally carried out in a drying oven. During the curing process, if there is oxygen in the curing area, oxygen inhibition reaction will occur and the ink or coating surface will not be completely cured. Light curing usually requires the protection of inert gas.

[0027] In this solution, the positioning table 6 is used to place the tape, and the user can merge the lower box body 1 and the upper box body 2. The arrangement of multiple connecting plates 3 allows the user to fix the lower box body 1 and the upper box body 2 through screws. The arrangement of a pair of first sealing rings 4 can play a sealing role between the lower box body 1 and the upper box body 2. The drying and curing of the tape is carried out by using an electron accelerator. The electron accelerator is a device that can generate high-energy electron beams for irradiating and processing materials. During the curing process, the electron accelerator irradiates the electron beams onto the tape through the radiation window 12. These electron beams have sufficient energy to induce chemical reactions in the adhesive on the surface of the tape, promoting its curing and cross-linking. During the curing process, multiple nitrogen spray pipes 5 are provided to release nitrogen into the inner cavity of the lower box body 1 and the upper box body 2, which can drive away oxygen, so that the nitrogen quickly fills the inner cavity of the lower box body 1 and the upper box body 2, replaces oxygen, avoids oxygen inhibition reaction, and ensures the curing effect of the tape.

[0028] When the tape is located on the upper side of the positioning platform 6, the user starts the vacuum pump 10, which can extract the air inside the positioning platform 6, so that a negative pressure is formed in the inner cavity of the positioning platform 6. At this time, the inside of the positioning platform 6 will suck in the external air through the multiple adsorption holes 11, and the formed airflow will adsorb the tape to the surface of the positioning platform 6, thereby fixing the tape and ensuring the flatness of the tape surface. The adsorption only acts on the side of the tape that is not coated with adhesive, and will not affect the adhesive on the other side of the tape. The adsorption holes 11 are set to very small holes to ensure that the tape will not be sucked into the adsorption holes 11, avoiding wrinkles on the tape surface. The adsorbed tape can also block the adsorption holes 11 to avoid the air in the lower box 1 and the upper box 2 from being sucked into the positioning platform 6.

[0029] Through holes 7 are provided at both ends of the lower box body 1, and second sealing rings 8 are installed at both ends of the lower box body 1 and the upper box body 2. The second sealing ring 8 surrounds the outer side of the through hole 7, and the bottom end of the inner wall of the through hole 7 is at the same horizontal position as the upper surface of the positioning platform 6.

[0030] In this solution, multiple lower boxes 1 and upper boxes 2 can be spliced ​​together through a connecting plate 3 to achieve end-to-end connection and realize automated assembly line production, and the tape can pass through the inner cavities of the multiple lower boxes 1 and upper boxes 2 through the through holes 7. The splicing surfaces between adjacent lower boxes 1 and upper boxes 2 are each provided with a second sealing ring 8, and the through holes 7 can be sealed by extrusion of the second sealing ring 8 to prevent outside air from entering the inner cavities of the lower boxes 1 and the upper boxes 2.

[0031] The exhaust assembly 9 includes a one-way valve 904 and a corrugated exhaust pipe 905, the one-way valve 904 is fixedly connected to the outer end of the upper box body 2, the corrugated exhaust pipe 905 is installed at the inner end of the upper box body 2, and the corrugated exhaust pipe 905 is connected to the one-way valve 904, the exhaust assembly 9 also includes a servo motor 901, the servo motor 901 is installed on the inner wall of the upper box body 2, and the output end of the servo motor 901 is fixedly connected to a reciprocating screw rod 902, and a matching screw sleeve 903 is installed on the reciprocating screw rod 902, and the outer end of the screw sleeve 903 is fixedly connected to a baffle 906, and the baffle 906 is slidably connected to the inner wall of the upper box body 2. The limiting rod 907 is slidably connected to the corrugated exhaust pipe 905, and the outer end of the limiting rod 907 is sleeved with a spring 908, and the two ends of the spring 908 are respectively fixedly connected to the corrugated exhaust pipe 905 and the limiting rod 907, and the corrugated exhaust pipe 905 and the baffle 906 are both installed with a third sealing ring 910 at one end close to each other, and the end of the corrugated exhaust pipe 905 close to the baffle 906 is provided with an air inlet hole connected to the inner cavity of the corrugated exhaust pipe 905, and an isolation membrane 909 is installed on the inner wall of the air inlet hole, and the third sealing ring 910 surrounds the outside of the air inlet hole.

[0032] In this solution, when multiple nitrogen spray pipes 5 release nitrogen into the inner cavities of the lower box body 1 and the upper box body 2, the user can start the servo motor 901 to drive the reciprocating screw 902 to rotate continuously. The rotation of the reciprocating screw 902 can drive the screw sleeve 903 to move at its outer end, and then drive the baffle 906 to slide back and forth on the inner wall of the upper box body 2 through the screw sleeve 903. When the baffle 906 slides in a direction away from the corrugated exhaust pipe 905, it will drive the limit rod 907 to slide on the corrugated exhaust pipe 905, causing the spring 908 to be squeezed, so that the baffle 906 is separated from the corrugated exhaust pipe 905, and at the same time The bellows exhaust pipe 905 is stretched. The bellows exhaust pipe 905 is stretched and the air in the lower box 1 and the upper box 2 is sucked into the inner cavity of the bellows exhaust pipe 905. The isolation membrane 909 is a gas selective membrane. Membrane separation is a commonly used separation technology. By using special membrane materials, different gas components are selectively separated according to the size, shape and affinity of gas molecules. In the separation of oxygen and nitrogen, the isolation membrane 909 can be used to achieve oxygen permeation and prevent nitrogen from passing through. This is because the isolation membrane 909 has many tiny pores, and the gas forms a gas barrier on the surface of the isolation membrane 909. Under the action of pressure difference, separation is performed through these pores. The size of the pores can be adjusted according to the desired separation effect. Smaller pores can selectively block the passage of nitrogen and allow oxygen to pass through. Then, by stretching the corrugated exhaust pipe 905, the oxygen in the lower box 1 and the upper box 2 can be sucked into the corrugated exhaust pipe 905 through the air inlet hole. Then, when the baffle 906 moves toward the direction close to the corrugated exhaust pipe 905, the spring 908 is reset to make the baffle 906 abut against the corrugated exhaust pipe 905. The air inlet hole is sealed by squeezing a pair of third sealing rings 910. Then The baffle 906 will push the corrugated exhaust pipe 905 to be compressed. The oxygen in the corrugated exhaust pipe 905 cannot be discharged through the air inlet hole, so it can only be discharged to the outside through the one-way valve 904. The setting of the one-way valve 904 can only allow the air inside the lower box body 1 and the upper box body 2 to be discharged to the outside, and the outside air cannot enter the lower box body 1 and the upper box body 2 through the one-way valve 904. With this setting, as the corrugated exhaust pipe 905 is repeatedly stretched and squeezed, the oxygen in the lower box body 1 and the upper box body 2 can be quickly discharged, so that the nitrogen can completely fill the space in the lower box body 1 and the upper box body 2, thereby improving the curing efficiency of the tape.

[0033] Working principle:

[0034] When in use, multiple lower boxes 1 and upper boxes 2 can be spliced ​​through the connecting plate 3 to achieve end-to-end connection and realize automated assembly line production. The tape is placed on the upper side of the positioning platform 6 and penetrates the inner cavities of the multiple lower boxes 1 and the upper boxes 2 through the through hole 7. The user starts the vacuum pump 10 to extract the air inside the positioning platform 6, so that the inner cavity of the positioning platform 6 forms a negative pressure. The inside of the positioning platform 6 draws external air into it through multiple adsorption holes 11. The formed airflow will adsorb the tape to the surface of the positioning platform 6, thereby fixing the tape and ensuring the flatness of the tape surface. Then the user releases nitrogen to the inner cavities of the lower box 1 and the upper box 2 through multiple nitrogen spray pipes 5 to drive away the oxygen. The nitrogen quickly fills the inner cavity of the lower box body 1 and the upper box body 2 to replace the oxygen, avoid the oxygen inhibition reaction, and ensure the curing effect of the tape. At the same time, the user starts the servo motor 901 to drive the reciprocating screw rod 902 to rotate continuously, and the rotation of the reciprocating screw rod 902 drives the screw sleeve 903 to move at its outer end, and then drives the baffle plate 906 to slide back and forth on the inner wall of the upper box body 2 through the screw sleeve 903. When the baffle plate 906 slides in the direction away from the corrugated exhaust pipe 905, it drives the limit rod 907 to slide on the corrugated exhaust pipe 905, causing the spring 908 to be squeezed, so that the baffle plate 906 is separated from the corrugated exhaust pipe 905, and at the same time, the corrugated exhaust pipe 905 is stretched, and the corrugated exhaust pipe When 905 is stretched, the air in the lower box body 1 and the upper box body 2 will be sucked into the inner cavity of the corrugated exhaust pipe 905. The isolation membrane 909 can selectively prevent the passage of nitrogen and allow oxygen to pass through. Then, by stretching the corrugated exhaust pipe 905, the oxygen in the lower box body 1 and the upper box body 2 can be sucked into the corrugated exhaust pipe 905 through the air inlet hole. Then, when the baffle 906 moves toward the direction close to the corrugated exhaust pipe 905, the spring 908 is reset to make the baffle 906 abut against the corrugated exhaust pipe 905, and the air inlet hole is sealed by squeezing a pair of third sealing rings 910. Then, the baffle 906 pushes the corrugated exhaust pipe 905 to be compressed, and the oxygen in the corrugated exhaust pipe 905 is The nitrogen in the lower box 1 and the upper box 2 cannot be discharged through the air inlet hole, so it can only be discharged to the outside through the one-way valve 904. The setting of the one-way valve 904 can only allow the air inside the lower box 1 and the upper box 2 to be discharged to the outside, and the outside air cannot enter the lower box 1 and the upper box 2 through the one-way valve 904. With this setting, with the repeated stretching and squeezing of the corrugated exhaust pipe 905, the oxygen in the lower box 1 and the upper box 2 can be quickly discharged, so that the nitrogen can completely fill the space in the lower box 1 and the upper box 2, thereby improving the curing efficiency of the tape. Finally, the user starts the electron accelerator, and the electron accelerator irradiates the electron beam onto the tape through the radiation window 12, thereby initiating a chemical reaction in the adhesive on the surface of the tape, prompting it to cure and cross-link.

[0035] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A nitrogen protection curing box, comprising a lower box body (1) and an upper box body (2), characterized in that: The outer ends of the lower box body (1) and the upper box body (2) are both fixedly connected with a plurality of connecting plates (3), and the edge positions of the lower box body (1) and the upper box body (2) close to one end are both installed with a first sealing ring (4), the inner cavities of the lower box body (1) and the upper box body (2) are both installed with a nitrogen spray pipe (5), the bottom end of the inner wall of the lower box body (1) is fixedly connected with a positioning platform (6), the upper end of the positioning platform (6) is provided with a plurality of adsorption holes (11) connected with the inner cavity, and the inner cavity of the positioning platform (6) is installed with an exhaust fan (10), the top end of the inner wall of the upper box body (2) is installed with a radiation window (12), and the inner cavity of the upper box body (2) is provided with an exhaust assembly (9).

2. The nitrogen protection curing box according to claim 1, characterized in that: Through holes (7) are provided at both ends of the lower box body (1), and second sealing rings (8) are installed at both ends of the lower box body (1) and the upper box body (2). The second sealing ring (8) surrounds the outer side of the through hole (7), and the bottom end of the inner wall of the through hole (7) is at the same horizontal position as the upper surface of the positioning platform (6).

3. The nitrogen protection curing box according to claim 1, characterized in that: The exhaust assembly (9) comprises a one-way valve (904) and a corrugated exhaust pipe (905), wherein the one-way valve (904) is fixedly connected to the outer end of the upper box body (2), and the corrugated exhaust pipe (905) is installed at the inner end of the upper box body (2), and the corrugated exhaust pipe (905) is in communication with the one-way valve (904).

4. The nitrogen protection curing box according to claim 3, characterized in that: The exhaust assembly (9) further comprises a servo motor (901), the servo motor (901) being mounted on the inner wall of the upper box body (2), and the output end of the servo motor (901) being fixedly connected to a reciprocating screw rod (902), a threaded sleeve (903) matching the reciprocating screw rod (902) being mounted on the reciprocating screw rod (902), and a baffle (906) being fixedly connected to the outer end of the threaded sleeve (903).

5. The nitrogen protection curing box according to claim 4, characterized in that: The baffle plate (906) is slidably connected to the inner wall of the upper box body (2), and the outer end of the baffle plate (906) is fixedly connected to a limit rod (907), the limit rod (907) is slidably connected to the corrugated exhaust pipe (905), and the outer end of the limit rod (907) is sleeved with a spring (908), and the two ends of the spring (908) are respectively fixedly connected to the corrugated exhaust pipe (905) and the limit rod (907).

6. The nitrogen protection curing box according to claim 4, characterized in that: The third sealing ring (910) is installed at one end of the corrugated exhaust pipe (905) and the baffle plate (906) close to each other, and an air inlet hole connected to the inner cavity of the corrugated exhaust pipe (905) is opened at one end of the corrugated exhaust pipe (905) close to the baffle plate (906), and an isolation membrane (909) is installed on the inner wall of the air inlet hole. The third sealing ring (910) surrounds the outer side of the air inlet hole.

Images