Plastic packaging device for fire extinguisher

Abstract

The utility model discloses a plastic packaging device for fire extinguishers, which relates to the technical field of fire extinguisher production, and comprises two conveying devices and a sealing and cutting assembly arranged between the two conveying devices, the top of one conveying device is connected with a fixing plate, the inside of the fixing plate is connected with two adjusting frames in a sliding manner, and the two adjusting frames are arranged on the fixing plate. According to the fire extinguisher sealing and cutting device, the arc plate is matched with the guide shaft to guide and position the fire extinguisher when the fire extinguisher is conveyed to the sealing and cutting assembly, and the problem that the position accuracy is difficult to guarantee when the fire extinguisher is conveyed and subjected to plastic package is solved; the working stability of the fire extinguisher plastic packaging device can be improved; the driving roller is matched with the two guide shafts to rotate, so that a fire extinguisher in the heat shrinkage film machine can be rotated, the problems that plastic packaging of the fire extinguisher is not uniform and the working efficiency is low are solved, and the working efficiency and the working quality of the fire extinguisher plastic packaging device are improved.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguisher manufacturing technology, specifically to a plastic sealing device for fire extinguishers. Background Technology

[0002] As an important fire-fighting equipment, fire extinguishers usually need to be plastic-sealed after production. This serves two purposes: firstly, to protect the surface of the fire extinguisher from scratches, corrosion, and other damage; and secondly, to enhance the product's appearance and facilitate storage and transportation.

[0003] 1. The fire extinguisher sealing device does not have a guiding and positioning measure when transporting fire extinguishers. Instead, the fire extinguishers are transported directly on the conveyor belt, which makes it difficult to guarantee the accurate position of the fire extinguishers during the sealing process.

[0004] 2. When the fire extinguisher, after being sealed with heat shrink film, enters the heat shrink film machine for plastic sealing, the heat shrink efficiency on the side of the fire extinguisher that is in contact with the conveying equipment will be lower than that on the other side. This will affect the working efficiency of the fire extinguisher plastic sealing device and will also cause uneven plastic sealing of the fire extinguisher.

[0005] 3. Because different fire extinguishers have different sizes, the fire extinguisher sealing device cannot be adjusted to the corresponding working settings according to the size of different fire extinguishers. This results in poor adaptability of the fire extinguisher sealing device, and consequently, poor practical performance of the fire extinguisher sealing device. Utility Model Content

[0006] To address the above problems, this utility model provides a plastic sealing device for fire extinguishers, which solves the aforementioned issues.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a plastic sealing device for fire extinguishers, comprising two conveying devices and a sealing and cutting assembly disposed between the two conveying devices, wherein a fixed plate is connected to the top of one of the conveying devices, two adjusting frames are slidably connected inside the fixed plate, a guide shaft is rotatably connected inside the adjusting frame, and an arc plate is connected to one end of the adjusting frame;

[0008] The fixed plate is internally connected to two screws, one end of which is fixedly connected to a wheel, and the outside of the screws is threadedly connected to the inside of the adjusting frame.

[0009] One of the conveying devices is connected to a heat shrink film machine at its top, and an electric push rod is connected to the top of the heat shrink film machine. A connecting frame is fixedly connected to the output end of the electric push rod, and a rotating shaft is rotatably connected inside the connecting frame. An active roller is connected to the outside of the rotating shaft.

[0010] Preferably, a motor is connected to one side of the connecting frame, and the output end of the motor is connected to one end of the rotating shaft for transmission.

[0011] Preferably, the two arc plates are symmetrically distributed, the two arc plates guide the fire extinguisher, and the two guide shafts position and guide the fire extinguisher.

[0012] Preferably, the heat shrink film machine has curtains connected to both the front and rear ends, and the outside of the rotating shaft passes through the gaps in the curtains.

[0013] Preferably, the sealing and cutting assembly includes a fixing frame, which is disposed between two conveying devices, and four sliders are slidably connected to the outside of the fixing frame.

[0014] Preferably, one side of each of the four sliders is connected to two support plates, and the support plates are connected to heat-sealing cut sections.

[0015] Preferably, the upper and lower ends of the fixing frame are respectively connected to cylinders, the two cylinders are symmetrically distributed, and the output ends of the two cylinders are respectively connected to one side of the two support plates.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This application uses an arc plate and guide shaft to guide and position the fire extinguisher when it is transported to the sealing assembly, thereby improving the stability and accuracy of the fire extinguisher during transport. This solves the problem that the fire extinguisher sealing device does not have a guiding and positioning measure when transporting the fire extinguisher for sealing, which makes it difficult to guarantee the accuracy of the position of the fire extinguisher during sealing. This is beneficial to improving the stability of the fire extinguisher sealing device during operation.

[0018] 2. This application uses an active roller in conjunction with two guide shafts to rotate the fire extinguisher in the heat shrink film machine, which allows the fire extinguisher to be uniformly sealed. This solves the problems of uneven sealing and low working efficiency of fire extinguishers, and helps to improve the working efficiency and quality of the fire extinguisher sealing device.

[0019] 3. This application, through the adjustment bracket and guide shaft, allows the spacing between the two guide shafts to be adjusted according to the size of different fire extinguishers, thus achieving the effect of sealing fire extinguishers of different diameters. This solves the problem that fire extinguisher sealing devices cannot be adjusted to the corresponding working settings according to the size of different fire extinguishers, and is conducive to improving the practical performance of fire extinguisher sealing devices. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention with the curtain removed;

[0022] Figure 3 This is a partial structural schematic diagram of the present invention;

[0023] Figure 4 This is a partial cross-sectional view of the present invention.

[0024] Figure 5 This is a schematic diagram of the sealing and cutting component structure of this utility model.

[0025] The diagram shows the following labels: 1. Conveying equipment; 2. Sealing and cutting assembly; 3. Fixing plate; 4. Adjusting frame; 5. Arc plate; 6. Screw; 7. Rotary wheel; 8. Guide shaft; 9. Drive roller; 10. Rotating shaft; 11. Connecting frame; 12. Electric push rod; 13. Heat shrink film machine; 14. Curtain; 15. Motor; 16. Fixing frame; 17. Slider; 18. Support plate; 19. Heat sealing and cutting section; 20. Cylinder. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] Please see Figures 1 to 5 A fire extinguisher sealing device includes two conveying devices 1 and a sealing and cutting assembly 2 disposed between the two conveying devices 1. One conveying device 1 is used for conveying the previous process (heat shrink film covering process), and the other conveying device 1 is used for the fire extinguisher sealing process. After the heat shrink film covering process is completed, the fire extinguisher is conveyed to the sealing process. A fixed plate 3 is connected to the top of one of the conveying devices 1. Two adjusting frames 4 are slidably connected inside the fixed plate 3. A guide shaft 8 is rotatably connected inside the adjusting frame 4. The guide shaft 8 can rotate inside the adjusting frame 4. It should be noted that the guide shaft 8 can only be driven. An arc plate 5 is connected to one end of the adjusting frame 4.

[0028] The fixed plate 3 has two screws 6 internally rotatably connected. One end of the screw 6 is fixedly connected to a wheel 7, and the outside of the screw 6 is threadedly connected to the inside of the adjusting frame 4.

[0029] One of the conveying devices 1 is connected to a heat shrink film machine 13 at the top. The fire extinguisher enters the heat shrink film machine 13 along with the conveying device 1. The heat shrink film machine 13 uses an electric heating tube to heat the film and uses a hot air fan to blow hot air through a hot air nozzle onto the fire extinguisher. Under the action of high temperature, the molecular structure of the heat shrink film changes. The originally disordered molecules rearrange themselves, causing the film to shrink and tightly adhere to the surface of the fire extinguisher, thereby completing the plastic sealing of the fire extinguisher. The heat shrink film machine is a known technology, and those skilled in the art can and should understand its specific functions and structure, so it will not be described in detail here. The top of the heat shrink film machine 13 is connected to an electric push rod 12. The output end of the electric push rod 12 is fixedly connected to a connecting frame 11. The inside of the connecting frame 11 is rotatably connected to a rotating shaft 10, and the outside of the rotating shaft 10 is connected to an active roller 9.

[0030] First, the personnel adjust the distance between the two guide shafts 8 according to the current size of the fire extinguisher being produced. By rotating the wheel 7, the screw 6 is rotated, causing the adjusting frame 4 to move along the screw 6, thereby adjusting the distance between the two guide shafts 8. The personnel adjust the distance between the two guide shafts 8 so that the outside of the fire extinguisher is tangent to the two guide shafts 8 and the conveying equipment 1 at the same time before performing the fire extinguisher sealing work.

[0031] It should be further added that when the outside of the fire extinguisher is tangent to both guide shafts 8 and the conveying device 1 at the same time, the fire extinguisher can be conveyed by the conveying device 1, and when the guide shafts 8 rotate, the fire extinguisher also rotates with the guide shafts 8, so as to guide and position the fire extinguisher during delivery and improve the stability and accuracy of the fire extinguisher during delivery.

[0032] Furthermore, by adjusting the distance between the two guide shafts 8, the sealing effect of fire extinguishers of different diameters can be achieved, solving the problem that the fire extinguisher sealing device cannot adjust the corresponding working settings according to the size of different fire extinguishers, thus improving the practical performance of the fire extinguisher sealing device.

[0033] Subsequently, the fire extinguisher covered with heat shrink film is laid flat and passes through the conveying equipment 1 to the sealing and cutting assembly 2. At this time, the bottom of the fire extinguisher (referring to the bottom when the fire extinguisher is placed vertically) will be guided by the arc plate 5 between the two guide shafts 8. At this time, the conveying equipment 1 stops working and the fire extinguisher is no longer conveyed. Then the sealing and cutting assembly 2 seals and cuts the heat shrink film on the outside of the fire extinguisher.

[0034] Then, the conveying device 1 continues to convey the fire extinguisher. The fire extinguisher will move into the heat shrink film machine 13 on one side of the two guide shafts 8. Then the heat shrink film machine 13 heats the heat shrink film on the outside of the fire extinguisher, so that the heat shrink film shrinks on the outside of the fire extinguisher, thereby completing the plastic sealing of the fire extinguisher.

[0035] It should be noted that at this time, the output end of the electric push rod 12 pushes the connecting frame 11 and the active roller 9 to descend, so that the active roller 9 comes into contact with the outside of the fire extinguisher. The active roller 9 is provided with anti-slip material to ensure that the active roller 9 will drive the fire extinguisher to rotate when it rotates. At the same time, the output end of the motor 15 drives the rotating shaft 10 and the active roller 9 to rotate, so that the fire extinguisher rotates on the two guide shafts 8, and the two guide shafts 8 will also follow. This allows the fire extinguisher to rotate during the sealing process, so that the heat shrinkage efficiency of the side of the fire extinguisher in contact with the conveying equipment 1 is lower than that of the other side when the fire extinguisher is sealed. This would affect the working efficiency of the fire extinguisher sealing device and may also cause uneven sealing of the fire extinguisher.

[0036] A motor 15 is connected to one side of the connecting frame 11, and the output end of the motor 15 is connected to one end of the rotating shaft 10 for transmission.

[0037] The two arc plates 5 are symmetrically distributed, and the two arc plates 5 guide the fire extinguisher. The two guide shafts 8 position and guide the fire extinguisher.

[0038] The front and rear ends of the heat shrink film machine 13 are connected to curtains 14. The outside of the rotating shaft 10 passes through the gaps of the curtains 14. The curtains 14 can isolate the working area of ​​the heat shrink film machine 13 from the outside world, reduce the interference of external airflow, dust and other factors on the heat shrinking process, and also reduce the heat loss from the inside of the heat shrink film machine 13 to the surrounding environment, which helps to maintain the temperature stability inside the heat shrink film machine 13 and improve the heating efficiency.

[0039] It should be noted that the function of the curtain 14 is not to completely seal the heat shrink film machine 13, but only to reduce heat loss. Therefore, the motor 15 is set outside the heat shrink film machine 13, which can extend the service life of the motor 15. At the same time, the connecting frame 11 and the rotating shaft 10 will move in the gap of the curtain 14 when they are raised and lowered, and the curtain 14 will not affect the normal operation of the rotating shaft 10.

[0040] The sealing and cutting assembly 2 includes a fixing frame 16, which is located between two conveying devices 1. Four sliders 17 are slidably connected to the outside of the fixing frame 16.

[0041] Two support plates 18 are connected to one side of the four sliders 17. A heat-sealing cutter 19 is connected to the support plate 18. When the support plate 18 moves, it will drive the sliders 17 to slide outside the fixed frame 16, which can improve the stability of the support plate 18 and the heat-sealing cutter 19 when they move.

[0042] The upper and lower ends of the fixed frame 16 are respectively connected to cylinders 20. The two cylinders 20 are symmetrically distributed. The output ends of the two cylinders 20 are respectively connected to one side of the two support plates 18. The sealing and cutting assembly 2 moves synchronously towards the middle of the fixed frame 16 through the output ends of the two cylinders 20, so that the support plates 18 drive the heat sealing and cutting parts 19 to move closer together and contact each other to seal and cut the heat shrink film on the outside of the fire extinguisher.

[0043] The sealing and cutting component 2 is a known technology, and those skilled in the art can and should understand its specific functions and structure. Therefore, it will not be described in detail here. This application uses the components of the sealing and cutting component 2 to describe its working process. The working principle of the heat-sealing cutting part 19 is also a known technology, and the technology is very mature at present. Those skilled in the art can and should understand its specific functions and structure. Therefore, it will not be described in detail here. The heat-sealing cutting part 19 is equipped with known components such as heat-sealing cutters. The heat-sealing cutting part 19 uses heat-sealing pads to press the edges of the heat-shrink film together. The molecules on the surface of the film are fused together by high temperature to achieve heat sealing. Then, the heat-sealing cutter continues to press down and uses the cutter to cut off the excess heat-shrink film to form a neat packaging edge, thereby completing the sealing and cutting operation of the heat-shrink film.

[0044] When using this utility model:

[0045] First, one conveying device 1 is used for conveying the previous process (heat shrink film wrapping process), and the other conveying device 1 is used for the fire extinguisher plastic sealing process. After the heat shrink film wrapping work is completed, the fire extinguisher will be conveyed to the plastic sealing process.

[0046] Secondly, the personnel adjust the distance between the two guide shafts 8 according to the current size of the fire extinguisher. By rotating the wheel 7, the screw 6 is rotated, causing the adjusting frame 4 to move along the screw 6, thereby adjusting the distance between the two guide shafts 8. The personnel adjust the distance between the two guide shafts 8 so that the outside of the fire extinguisher is tangent to the two guide shafts 8 and the conveying equipment 1 at the same time before performing the fire extinguisher sealing work.

[0047] Then, the fire extinguisher covered with heat-shrink film is laid flat and passes through the conveying equipment 1 to the sealing and cutting assembly 2. At this time, the bottom of the fire extinguisher (referring to the bottom when the fire extinguisher is placed vertically) will be guided by the arc plate 5 between the two guide shafts 8. At this time, the conveying equipment 1 stops working and the fire extinguisher is no longer conveyed. Then the sealing and cutting assembly 2 seals and cuts the heat-shrink film on the outside of the fire extinguisher. The sealing and cutting assembly 2 moves synchronously towards the middle of the fixed frame 16 through the output ends of the two cylinders 20, so that the support plate 18 drives the heat sealing and cutting part 19 to move closer and contact each other to seal and cut the heat-shrink film on the outside of the fire extinguisher.

[0048] Finally, the conveying device 1 continues to convey the fire extinguisher. The fire extinguisher moves into the heat shrink film machine 13 from one side of the two guide shafts 8. Then, the heat shrink film machine 13 heats the heat shrink film on the outside of the fire extinguisher, causing the heat shrink film to shrink on the outside of the fire extinguisher, thus completing the plastic sealing of the fire extinguisher. At this time, the output end of the electric push rod 12 pushes the connecting frame 11 and the active roller 9 to descend, so that the active roller 9 contacts the outside of the fire extinguisher. At the same time, the output end of the motor 15 drives the rotating shaft 10 and the active roller 9 to rotate, so that the fire extinguisher rotates on the two guide shafts 8, and the two guide shafts 8 also follow, so that the fire extinguisher can rotate during the plastic sealing process.

[0049] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing device for fire extinguishers, comprising two conveying devices (1) and a sealing assembly (2) disposed between the two conveying devices (1), characterized in that: One of the conveying devices (1) has a fixed plate (3) connected to its top. The fixed plate (3) has two adjusting frames (4) slidably connected inside. The adjusting frames (4) have a guide shaft (8) rotatably connected inside. One end of the adjusting frame (4) is connected to an arc plate (5). The fixed plate (3) has two screws (6) rotatably connected inside. One end of the screw (6) is fixedly connected to a wheel (7). The outside of the screw (6) is threadedly connected to the inside of the adjusting frame (4). One of the conveying devices (1) is connected to a heat shrink film machine (13) at the top, and an electric push rod (12) is connected to the top of the heat shrink film machine (13). A connecting frame (11) is fixedly connected to the output end of the electric push rod (12). A rotating shaft (10) is rotatably connected inside the connecting frame (11), and an active roller (9) is connected to the outside of the rotating shaft (10).

2. The sealing device for a fire extinguisher according to claim 1, characterized in that: A motor (15) is connected to one side of the connecting frame (11), and the output end of the motor (15) is connected to one end of the rotating shaft (10) for transmission.

3. The sealing device for a fire extinguisher according to claim 1, characterized in that: The two arc plates (5) are symmetrically distributed, and the two arc plates (5) guide the fire extinguisher. The two guide shafts (8) position and guide the fire extinguisher.

4. The sealing device for a fire extinguisher according to claim 1, characterized in that: The heat shrink film machine (13) is connected to curtains (14) at both the front and rear ends, and the outside of the rotating shaft (10) passes through the gap of the curtains (14).

5. A sealing device for a fire extinguisher according to claim 1, characterized in that: The sealing and cutting assembly (2) includes a fixing frame (16) located between two conveying devices (1), and four sliders (17) are slidably connected to the outside of the fixing frame (16).

6. A sealing device for a fire extinguisher according to claim 5, characterized in that: Two support plates (18) are connected to one side of each of the four sliders (17), and heat-sealing cuts (19) are connected to the support plates (18).

7. A sealing device for a fire extinguisher according to claim 5, characterized in that: The upper and lower ends of the fixed frame (16) are respectively connected to cylinders (20), the two cylinders (20) are symmetrically distributed, and the output ends of the two cylinders (20) are respectively connected to one side of the two support plates (18).

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