Preparation of antibacterial and radiation-proof diatomite packaging box and process thereof

Abstract

This invention relates to the field of packaging box preparation and its process, and discloses a preparation equipment for antibacterial and radiation-proof diatomaceous earth packaging boxes. The equipment includes an annular conveyor belt with a disc in the middle. Several spraying components are mounted on the disc, each including an intermittent liquid pump installed in the center of the disc and cylinders around the disc. Compared to existing technologies, the spraying components in this application are arranged in several groups on the disc, evenly distributed. After the first packaging box is sprayed by the first group of spraying components, the annular conveyor belt continues to operate, transporting the first packaging box to the second group of spraying components. At this point, a new packaging box is located at the first group of spraying components, and so on. Different antibacterial and radiation-proof coatings are sprayed onto the inner wall of the packaging box using different spraying components, achieving continuous spraying operation.

Description

Technical Field

[0001] This invention relates to the field of diatomaceous earth packaging box preparation and its process, specifically to the preparation and process of an antibacterial and radiation-proof diatomaceous earth packaging box. Background Technology

[0002] Diatomaceous earth is a siliceous rock mainly composed of the remains of ancient diatoms. Its chemical composition is mainly SiO2. Diatomaceous earth coating additives have the characteristics of large porosity, strong absorption, stable chemical properties, wear resistance, and heat resistance. They can provide coatings with excellent surface properties, increase volume, thicken, and improve adhesion.

[0003] After extensive searching, it was found that the existing technology publication number CN 216063876 U discloses an automatic spraying device for the production of wooden packaging boxes, including a base. The base has first hydraulic rods evenly distributed in the middle, and the upper driving ends of the first hydraulic rods are fixedly connected to the lower four corners of a support plate. The upper four corners of the support plate are fixedly connected to second hydraulic rods. The upper end of the base is fixedly connected to the lower outer periphery of a support platform. The upper left and right sides of the support platform are fixedly connected to drive chambers. The drive chambers are fixedly connected to the middle of opposite sides, and the driving ends of the cylinders are fixedly connected to limit plates.

[0004] Therefore, based on the above-mentioned search and combined with existing packaging box manufacturing equipment, the current methods for spraying packaging boxes are manual spraying or machine spraying. Manual spraying is inefficient and costly, cannot achieve continuous spraying, is inefficient, and is prone to uneven spraying. Therefore, this invention provides a preparation method and process for antibacterial and radiation-proof diatomaceous earth packaging boxes. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a preparation method and process for antibacterial and radiation-proof diatomaceous earth packaging boxes, which has advantages such as automatic continuous spraying and solves a series of problems related to uneven spraying.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a preparation device for antibacterial and radiation-proof diatomaceous earth packaging boxes, comprising an annular conveyor belt, a disc disposed in the middle of the annular conveyor belt, a plurality of spraying components mounted on the disc, the spraying components comprising an intermittent liquid pump mounted in the middle of the disc and a cylinder surrounding the disc, a pipe bundle frame fixedly connected to the upper end of the cylinder, a vertical plate fixedly connected to the right end of the pipe bundle frame, an mounting plate fixedly connected to the lower end of the vertical plate, a spraying head mounted on the mounting plate, a feed pipe fixedly connected to one end of the output end of the intermittent liquid pump, the other end of the feed pipe placed inside the pipe bundle frame and connected to the spraying head on the mounting plate, and a spraying head assembly mounted on the lower end of the mounting plate.

[0007] Preferably, the spray head assembly includes a motor mounted on a mounting plate, a drive gear fixedly connected to the output end of the motor, a rotating seat rotatably connected to the lower end of the mounting plate, an outer frame fixedly connected to the lower end of the rotating seat, a gear ring fitted on the outer surface of the rotating seat, the drive gear meshing with the gear ring, an inner frame vertically slidingly fitted inside the outer frame, a plurality of external through holes through the outer surface of the outer frame, a plurality of internal through holes through the outer surface of the inner frame, a swinging component installed in the external through holes, a fixed tube fixedly connected to the lower end of the mounting plate, a rotating tube rotatably connected to the lower end of the fixed tube, a plurality of discharge pipes connected to the outer surface of the rotating tube, and the ends of the discharge pipes placed inside the internal through holes.

[0008] Preferably, the rotating seat has a vertical groove in the middle, the upper sidewalls of the outer frame and the inner frame have vertical holes, the fixing tube is placed in the vertical groove and the vertical hole, the upper sidewalls of the inner frame have vertical sliding limit rods on the left and right sides, the upper end of the limit rod is fixedly connected to the top sidewall of the outer frame, the lower end of the limit rod is fixedly connected to the limit block, and the outer surface of the limit rod is fitted with a compression spring.

[0009] Preferably, the outer through holes on the outer surface of the outer frame and the inner through holes on the outer surface of the inner frame are vertically staggered.

[0010] Preferably, the swinging component installed in the outer through hole includes an outer spherical shell fixed in the outer through hole, a ball head rotatably installed in the outer spherical shell, a connecting groove passing through the ball head and the outer spherical shell in the outer through hole, a spray pipe integrally connected to the ball head, a return spring connected between the bottom sidewall of the spray pipe and the outer surface of the outer frame, and a baffle plate integrally connected to the inner sidewall of the ball head.

[0011] Preferably, the external through holes on the outer side wall of the outer frame are arranged in a uniform ring. The several external through holes arranged in a ring on the outer side wall of the outer frame are arranged in three groups in the vertical direction. The angle between the spray pipe in the external through hole and the outer side wall of the outer frame increases from bottom to top, and the angle between the baffle plate in the ball head and the connecting groove increases from bottom to top.

[0012] A manufacturing process for an antibacterial and radiation-resistant diatomaceous earth packaging box specifically includes the following steps:

[0013] S1: Place the packaging box to be processed at the inlet of the circular conveyor belt, and the packaging box moves along the circular conveyor belt;

[0014] S2: A photoelectric sensor is installed on the side of the circular conveyor belt near the feed inlet. When the packaging box moves to the photoelectric sensor, the circular conveyor belt stops for a short period of time.

[0015] S3: During the shutdown of the circular conveyor belt, the cylinder works and pushes the pipe bundle frame and vertical plate connected to it to move down. The mounting plate connected to the lower end of the vertical plate moves down until the lower end of the cone head abuts against the bottom side wall of the packaging box and pushes the inner frame into the outer frame. At this time, the outer through hole on the outer frame and the inner through hole on the inner frame are aligned, and the inner through hole, outer through hole and connecting groove are connected.

[0016] S4: Turn on the intermittent liquid pump and motor. The intermittent liquid pump pumps the antibacterial and anti-radiation coating into the rotating pipe and its connected discharge pipe along the feed pipe. Because the inner through hole, outer through hole and connecting groove are connected in the discharge pipe, the antibacterial and anti-radiation coating can be pumped into the ball head at high speed. Finally, it is pumped out from the spray pipe and sprayed on the inner surface of the packaging box.

[0017] S5: The intermittent liquid pump in the above steps is intermittent in operation, that is, the antibacterial and anti-radiation coating sprayed at high speed from the spray pipe is intermittent. When a stream of antibacterial and anti-radiation coating liquid is sprayed at high speed from the discharge pipe, it can push the baffle plate and its connected ball head and spray pipe to deflect upward along the outer spherical shell. It can return to its position through the reset spring. During the deflection process, the antibacterial and anti-radiation coating sprayed from the spray pipe can be sprayed continuously within a certain angle and sprayed on a certain range of the inner side wall of the packaging box. Through several connected external and internal through holes, the all-round automatic spraying operation of the inner side wall of the packaging box can be realized.

[0018] Compared with the prior art, the present invention provides a preparation method and process for an antibacterial and radiation-proof diatomaceous earth packaging box, which has the following beneficial effects:

[0019] 1. The preparation and process of an antibacterial and radiation-proof diatomaceous earth packaging box: Several sets of spraying components are set on a disc, and the sets of spraying components are evenly arranged. After the first packaging box is sprayed by the first set of spraying components, the circular conveyor belt continues to work and transports the first packaging box to the second set of spraying components. At this time, the new packaging box is located at the first set of spraying components. This process is repeated, and different antibacterial and radiation-proof coatings are sprayed onto the inner wall of the packaging box by different spraying components to achieve continuous spraying operation.

[0020] 2. The preparation and process of the antibacterial and radiation-proof diatomaceous earth packaging box: the angle between the spray pipe inside the external through hole of the outer frame and the outer frame increases from bottom to top, and the angle between the baffle plate inside the ball head and the connecting groove increases from bottom to top. Therefore, by using spray pipes at different angles, the bottom side wall and the four sides of the packaging box can be completely sprayed, ensuring the continuity and completeness of the spraying and preventing any missed spraying. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure from the main perspective of the present invention;

[0022] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the spraying assembly of the present invention;

[0024] Figure 4 This is a three-dimensional structural diagram of the spray head assembly of the present invention;

[0025] Figure 5 This is a schematic cross-sectional view of the spray head assembly of the present invention;

[0026] Figure 6 This is an enlarged structural diagram of point A in the present invention.

[0027] In the diagram: 1. Disc; 2. Circular conveyor belt; 3. Spraying assembly; 4. Intermittent liquid pump; 5. Feed pipe; 6. Cylinder; 7. Pipe bundle frame; 8. Vertical plate; 9. Spraying head assembly; 10. Mounting plate; 11. Rotating seat; 12. Gear ring; 13. Outer frame; 14. Inner frame; 15. Conical head; 16. Motor; 17. Drive gear; 18. Fixed pipe; 19. Rotating pipe; 20. Discharge pipe; 21. Limiting block; 22. Limiting rod; 23. Compression spring; 24. Outer spherical shell; 25. Ball head; 26. Spraying pipe; 27. Baffle plate; 28. Return spring; 29. ​​Connecting groove; 30. External through hole; 31. Internal through hole. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a preparation method and process for an antibacterial and radiation-proof diatomaceous earth packaging box.

[0030] In one typical implementation of this application, such as Figure 1-6As shown, a preparation device for an antibacterial and radiation-proof diatomaceous earth packaging box includes an annular conveyor belt 2, a disc 1 in the middle of the annular conveyor belt 2, and several spraying components 3 mounted on the disc 1. Each spraying component 3 includes an intermittent liquid pump 4 mounted in the middle of the disc 1 and cylinders 6 surrounding the disc 1. A pipe bundle frame 7 is fixedly connected to the upper end of the cylinder 6, a vertical plate 8 is fixedly connected to the right end of the pipe bundle frame 7, and a mounting plate 10 is fixedly connected to the lower end of the vertical plate 8. A spraying head is mounted on the mounting plate 10. The output end of the intermittent liquid pump 4 is fixedly connected to one end of a feed pipe 5, and the other end of the feed pipe 5 is placed inside the pipe bundle frame 7 and connected to the spraying head on the mounting plate 10. A spraying head assembly 9 is mounted on the lower end of the mounting plate 10. The spraying head assembly 9 includes components mounted on the mounting plate 10. Motor 16, with a drive gear 17 fixedly connected to its output end. A rotating seat 11 is rotatably connected to the lower end of mounting plate 10. An outer frame 13 is fixedly connected to the lower end of rotating seat 11. A gear ring 12 is fitted onto the outer surface of rotating seat 11, meshing with the drive gear 17. An inner frame 14 is vertically slidably fitted inside the outer frame 13. Several external through holes 30 are passed through the outer surface of the outer frame 13, and several internal through holes 31 are passed through the outer surface of the inner frame 14. A swinging component is installed within the external through holes 30. A fixed tube 18 is fixedly connected to the lower end of mounting plate 10, with a rotating tube 19 rotatably connected to the lower end of the fixed tube 18. Several discharge tubes 20 are connected to the outer surface of the rotating tube 19, with the ends of the discharge tubes 20 placed within the internal through holes 31. A rotating seat 11 is inserted through the middle. The outer frame 13 and inner frame 14 have vertical grooves and vertical holes on their upper sidewalls. A fixing pipe 18 is placed within the vertical grooves and holes. Limiting rods 22 slide vertically through the left and right sides of the upper sidewall of the inner frame 14. The upper end of the limiting rod 22 is fixedly connected to the inner top sidewall of the outer frame 13, and the lower end of the limiting rod 22 is fixedly connected to a limiting block 21. A compression spring 23 is fitted onto the outer surface of the limiting rod 22. In use, the packaging box to be processed is placed at the inlet of the circular conveyor belt 2. The packaging box moves along the circular conveyor belt 2. A photoelectric sensor is installed on the side of the circular conveyor belt 2 near the inlet. When the packaging box moves to the photoelectric sensor, the circular conveyor belt 2 stops for a short period. During this stop, the cylinder 6 operates and pushes the connected pipe bundle. The frame 7 and the vertical plate 8 move down, and the mounting plate 10 connected to the lower end of the vertical plate 8 moves down until the lower end of the conical head 15 abuts against the bottom side wall of the packaging box, and pushes the inner frame 14 into the outer frame 13. At this time, the outer through hole 30 on the outer frame 13 and the inner through hole 31 on the inner frame 14 are aligned. At this time, the inner through hole 31, the outer through hole 30 and the connecting groove 29 are connected. The intermittent liquid pump 4 and the motor 16 are turned on. The intermittent liquid pump 4 pumps the antibacterial and anti-radiation coating into the rotating pipe 19 and its connected discharge pipe 20 along the conveying pipe 5. Through the discharge pipe 20, because the inner through hole 31, the outer through hole 30 and the connecting groove 29 are connected, the antibacterial and anti-radiation coating can be pumped into the ball head 25 at high speed. Finally, it is pumped out from the spray pipe 26 and sprayed on the inner surface of the packaging box.

[0031] The aforementioned spraying components 3 are arranged in several groups on the disc 1. The groups of spraying components 3 are evenly arranged. After the first packaging box is sprayed by the first group of spraying components 3, the circular conveyor belt 2 continues to work, transporting the first packaging box to the second group of spraying components 3. At this time, the new packaging box is located at the first group of spraying components 3. And so on, different antibacterial and anti-radiation coatings are sprayed onto the inner wall of the packaging box by different spraying components 3, so as to achieve continuous spraying operation.

[0032] In a preferred embodiment of this invention, the external through holes 30 on the outer surface of the outer frame 13 and the internal through holes 31 on the outer surface of the inner frame 14 are vertically staggered. The swinging component installed in the external through hole 30 includes an outer spherical shell 24 fixed in the external through hole 30. A ball head 25 is rotatably installed in the outer spherical shell 24. A connecting groove 29 is provided on the ball head 25 and the outer spherical shell 24 in the external through hole 30. A spray pipe 26 is integrally connected to the ball head 25. A return spring 28 is connected between the bottom sidewall of the spray pipe 26 and the outer surface of the outer frame 13. A baffle plate 27 is integrally connected to the inner sidewall of the ball head 25. The external through holes 30 on the outer sidewall of the outer frame 13 are arranged in a ring evenly. The several external through holes 30 arranged in a ring on the outer sidewall of the outer frame 13 are arranged in three groups in the vertical direction. The external through holes 30 on the outer sidewall of the outer frame 13 are arranged from bottom to top. The angle between the spray pipe 26 and the outer wall of the outer frame 13 increases progressively, as does the angle between the baffle plate 27 and the connecting groove 29 inside the ball head 25 from bottom to top. The intermittent liquid pump 4 operates intermittently, meaning the antibacterial and anti-radiation coating sprayed at high speed from the spray pipe 26 is intermittent. When a stream of antibacterial and anti-radiation coating liquid is sprayed at high speed from the outlet pipe 20, it can push the baffle plate 27 and its connected ball head 25 and spray pipe 26 to deflect upwards along the outer spherical shell 24. It can return to its position through the return spring 28. During the deflection process, the antibacterial and anti-radiation coating sprayed from the spray pipe 26 can be continuously sprayed within a certain angle, and a certain range of the inner wall of the packaging box can be sprayed. Through several interconnected external through holes 30 and internal through holes 31, an all-round automatic spraying operation on the inner wall of the packaging box can be realized.

[0033] Because the angle between the spray pipe 26 inside the outer through hole 30 on the outer side wall of the outer frame 13 increases from bottom to top, and the angle between the baffle plate 27 inside the ball head 25 and the connecting groove 29 increases from bottom to top, the bottom side wall and the four sides of the packaging box can be completely sprayed through the spray pipe 26 at different angles, ensuring the continuity and completeness of the spraying and preventing any missed spraying.

[0034] A manufacturing process for an antibacterial and radiation-resistant diatomaceous earth packaging box specifically includes the following steps:

[0035] S1: Place the packaging box to be processed at the inlet of the circular conveyor belt 2, and the packaging box moves along the circular conveyor belt 2;

[0036] S2: A photoelectric sensor is installed on the side of the circular conveyor belt 2 near the feed inlet. When the packaging box moves to the photoelectric sensor, the circular conveyor belt 2 stops for a short period of time.

[0037] S3: During the shutdown of the circular conveyor belt 2, the cylinder 6 works and pushes the pipe bundle frame 7 and the vertical plate 8 connected to it to move down. The mounting plate 10 connected to the lower end of the vertical plate 8 moves down until the lower end of the cone head 15 abuts against the bottom side wall of the packaging box and pushes the inner frame 14 into the outer frame 13. At this time, the outer through hole 30 on the outer frame 13 and the inner through hole 31 on the inner frame 14 are aligned. At this time, the inner through hole 31, the outer through hole 30 and the connecting groove 29 are connected.

[0038] S4: Turn on the intermittent liquid pump 4 and motor 16. The intermittent liquid pump 4 pumps the antibacterial and anti-radiation coating into the rotating pipe 19 and its connected discharge pipe 20 along the conveying pipe 5. Because the inner through hole 31, the outer through hole 30 and the connecting groove 29 are connected in the discharge pipe 20, the antibacterial and anti-radiation coating can be pumped into the ball head 25 at high speed. Finally, it is pumped out from the spray pipe 26 and sprayed on the inner surface of the packaging box.

[0039] S5: The intermittent liquid pump 4 in the previous step is intermittent during operation, that is, the antibacterial and anti-radiation coating sprayed at high speed from the spray pipe 26 is intermittent. When a stream of antibacterial and anti-radiation coating liquid is sprayed at high speed from the discharge pipe 20, it can push the baffle plate 27 and its connected ball head 25 and spray pipe 26 to deflect upward along the outer spherical shell 24. It can return to its position through the return spring 28. During the deflection process, the antibacterial and anti-radiation coating sprayed from the spray pipe 26 can be sprayed continuously within a certain angle and sprayed on a certain range of the inner side wall of the packaging box. Through several connected external through holes 30 and internal through holes 31, the all-round automatic spraying operation of the inner side wall of the packaging box can be realized.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preparing antibacterial and radiation-proof diatomaceous earth packaging boxes, characterized in that: The system includes an annular conveyor belt (2), with a disc (1) in the middle of the annular conveyor belt (2). Several spraying components (3) are installed on the disc (1). Each spraying component (3) includes an intermittent liquid pump (4) installed in the middle of the disc (1) and a cylinder (6) on the periphery of the disc (1). A pipe bundle frame (7) is fixedly connected to the upper end of the cylinder (6). A vertical plate (8) is fixedly connected to the right end of the pipe bundle frame (7). An installation plate (10) is fixedly connected to the lower end of the vertical plate (8). A spraying head is installed on the installation plate (10). The output end of the intermittent liquid pump (4) is fixedly connected to one end of a material conveying pipe (5). The other end of the material conveying pipe (5) is placed inside the pipe bundle frame (7) and connected to the spraying head on the installation plate (10). A spraying head assembly (9) is installed at the lower end of the installation plate (10). The spray head assembly (9) includes a motor (16) mounted on a mounting plate (10). The output end of the motor (16) is fixedly connected to a drive gear (17). A rotating seat (11) is rotatably connected to the lower end of the mounting plate (10). An outer frame (13) is fixedly connected to the lower end of the rotating seat (11). A gear ring (12) is fitted on the outer surface of the rotating seat (11). The drive gear (17) and the gear ring (12) mesh. An inner frame (13) is vertically slidably fitted inside the outer frame (13). 4) The outer surface of the outer frame (13) is provided with several external through holes (30), and the outer surface of the inner frame (14) is provided with several internal through holes (31). A swinging component is installed in the external through holes (30). A fixed tube (18) is fixedly connected to the lower end of the mounting plate (10). A rotating tube (19) is rotatably connected to the lower end of the fixed tube (18). Several discharge tubes (20) are connected to the outer surface of the rotating tube (19). The end of the discharge tube (20) is placed in the internal through hole (31). The swinging component installed in the outer through hole (30) includes an outer spherical shell (24) fixed in the outer through hole (30), a ball head (25) is rotatably installed in the outer spherical shell (24), a connecting groove (29) is provided on the ball head (25) and the outer spherical shell (24) in the outer through hole (30), a spray pipe (26) is integrally connected to the ball head (25), a return spring (28) is connected between the bottom side wall of the spray pipe (26) and the outer surface of the outer frame (13), and a baffle plate (27) is integrally connected to the inner side wall of the ball head (25). The external through holes (30) on the outer side wall of the outer frame (13) are arranged in a ring and uniformly. There are three sets of external through holes (30) arranged in a ring on the outer side wall of the outer frame (13) in the vertical direction. The angle between the spray pipe (26) in the external through hole (30) and the outer side wall of the outer frame (13) increases from bottom to top. The angle between the baffle plate (27) and the connecting groove (29) in the ball head (25) increases from bottom to top.

2. The equipment for preparing an antibacterial and radiation-proof diatomaceous earth packaging box according to claim 1, characterized in that: The rotating seat (11) has a vertical groove in the middle. The upper sidewalls of the outer frame (13) and inner frame (14) are provided with vertical holes. The fixing tube (18) is placed in the vertical groove and vertical hole. The upper sidewalls of the inner frame (14) are vertically slidably provided with limiting rods (22). The upper end of the limiting rod (22) is fixedly connected to the top sidewall of the outer frame (13). The lower end of the limiting rod (22) is fixedly connected to a limiting block (21). The outer surface of the limiting rod (22) is fitted with a compression spring (23).

3. The equipment for preparing an antibacterial and radiation-proof diatomaceous earth packaging box according to claim 2, characterized in that: The outer through holes (30) on the outer surface of the outer frame (13) and the inner through holes (31) on the outer surface of the inner frame (14) are vertically staggered.

4. A manufacturing process for an antibacterial and radiation-proof diatomaceous earth packaging box, characterized in that... The preparation equipment for an antibacterial and radiation-resistant diatomaceous earth packaging box according to any one of claims 1-3 specifically includes the following steps: S1: Place the packaging box to be processed at the inlet of the circular conveyor belt (2), and the packaging box moves along the circular conveyor belt (2); S2: A photoelectric sensor is installed on the side of the circular conveyor belt (2) near the feed inlet. When the packaging box moves to the photoelectric sensor, the circular conveyor belt (2) stops for a short period of time. S3: During the shutdown of the circular conveyor belt (2), the cylinder (6) works and pushes the pipe bundle frame (7) and the vertical plate (8) connected to it to move down. The mounting plate (10) connected to the lower end of the vertical plate (8) moves down until the lower end of the cone head (15) abuts against the bottom side wall of the packaging box and pushes the inner frame (14) into the outer frame (13). At this time, the outer through hole (30) on the outer frame (13) and the inner through hole (31) on the inner frame (14) are aligned. At this time, the inner through hole (31), the outer through hole (30) and the connecting groove (29) are connected. S4: Turn on the intermittent liquid pump (4) and motor (16). The intermittent liquid pump (4) pumps the antibacterial and anti-radiation coating along the feed pipe (5) into the rotating pipe (19) and its connected discharge pipe (20). Through the discharge pipe (20), because the inner through hole (31), the outer through hole (30) and the connecting groove (29) are connected, the antibacterial and anti-radiation coating can be pumped into the ball head (25) at high speed, and finally pumped out from the spray pipe (26) to spray the inner surface of the packaging box. S5: The intermittent liquid pump (4) in the above steps is intermittent during operation, that is, the antibacterial and anti-radiation coating sprayed at high speed from the spray pipe (26) is intermittent. When a stream of antibacterial and anti-radiation coating liquid is sprayed at high speed from the discharge pipe (20), it can push the baffle plate (27) and its connected ball head (25) and spray pipe (26) to deflect upward along the outer spherical shell (24). It can return to its position through the reset spring (28). During the deflection process, the antibacterial and anti-radiation coating sprayed from the spray pipe (26) can be continuously sprayed within a certain angle and sprayed on a certain range of the inner side wall of the packaging box. Through several connected external through holes (30) and internal through holes (31), the all-round automatic spraying operation of the inner side wall of the packaging box can be realized.

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