Packaging machine

Abstract

The utility model relates to mechanical engineering and automation technical field discloses a kind of packing machines, comprising: packing machine body, including roller and ironing board, roller can transport packaging film, and ironing board is used to heat-seal packaging film;Open water tank, is located in the side position of ironing board;Fog outlet water tank, fog outlet is equipped on it, and atomizing module is equipped in fog outlet water tank, and fog outlet can be towards the packaging film on roller fog outlet.The packing machine of the utility model can carry out electrostatic discharge to ironing board area and roller area respectively, can overcome the short circuit of equipment internal circuit caused by static electricity and the serious stack module at membrane outlet, even cause the problem of equipment failure shutdown.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering and automation technology, specifically to a packaging machine. Background Technology

[0002] Packaging machines can use plastic film to package products, thereby improving their appearance and protecting them.

[0003] However, packaging machines need to operate at high speeds during operation, and the heating plates of the equipment maintain a high temperature continuously, resulting in a dry internal environment for the packaging machine. Furthermore, frequent friction between various components can easily generate static electricity. When static electricity accumulates to a certain level, it may cause short circuits in the internal circuitry of the equipment and severe film buildup at the film outlet, or even cause equipment malfunction and shutdown. Utility Model Content

[0004] In view of this, the present invention provides a packaging machine to solve the problem that packaging machines in the related art are prone to generating static electricity during operation, which can cause short circuits in the internal circuits of the equipment and severe film buildup at the film outlet, and even cause equipment failure and shutdown.

[0005] This utility model provides a packaging machine, comprising:

[0006] The packaging machine body includes rollers and a heat sealing plate. The rollers can transport the packaging film, and the heat sealing plate is used to heat seal the packaging film.

[0007] An open water tank is located on one side of the hot plate;

[0008] The mist-emitting water tank has a mist outlet on it, and an atomizing module is installed inside the mist-emitting water tank. The mist outlet can emit mist towards the packaging film on the roller.

[0009] Beneficial effects: During the use of the packaging machine of this utility model, the plastic film in the hot-sealing area is prone to drying due to high temperature, generating static electricity, which may lead to uneven sealing or material sticking. The hot-sealing plate can use its own high temperature to heat the water in the open water tank, thereby causing the water in the open water tank to evaporate, and thus providing local humidification to the area near the hot-sealing plate, thereby reducing static electricity in the area near the hot-sealing plate of the packaging machine.

[0010] In addition, the roller area is prone to static electricity due to the high-speed friction of the packaging film, which attracts surrounding parts, causing the transparent film to not be properly laid down, resulting in film accumulation or skewed laying, leading to problems such as poor product appearance. The misting water tank can spray mist onto the packaging film on the roller. As the packaging film moves downward, the water mist adheres to the packaging film, reducing its own resistance before sliding across the stainless steel shell of the packaging machine. This allows the static electricity to be discharged through the outer shell of the packaging machine and grounded, achieving the effect of eliminating static electricity.

[0011] Therefore, the packaging machine of this utility model can remove static electricity from the heating plate area and the roller area respectively, which can overcome the problems of short circuits in the internal circuit of the equipment and serious mold accumulation at the film outlet caused by static electricity, and even equipment failure and shutdown.

[0012] In one alternative embodiment, the hot plate includes a hot plate fixing plate, and the open water tank includes a suspension assembly connected to the hot plate fixing plate, with the open water tank suspended below the hot plate.

[0013] Beneficial effects: This arrangement utilizes the residual heat of the heating plate to heat the water in the open water tank, thereby achieving static electricity removal near the heating plate without increasing the energy consumption of the packaging machine. Furthermore, the packaging machine of this application places the open water tank below the heating plate, making full use of the often-overlooked dead space below the heating plate, without requiring additional space on the sides or top of the equipment, making it suitable for compact production lines.

[0014] In one optional embodiment, the hot plate further includes a first hot plate and a second hot plate spaced apart on the hot plate fixing plate, and the open water tank includes a first water tank disposed under the first hot plate and a second water tank disposed under the second hot plate.

[0015] Beneficial effects: This setup, with one water tank per heat-sealing plate, ensures uniform humidity coverage across the heat-sealing area, avoiding uneven humidity caused by distance differences in a single water tank. The first heat-sealing plate (e.g., the pre-sealing area) and the second heat-sealing plate (e.g., the final sealing area) may generate varying degrees of static electricity due to material temperature differences. The dual water tanks allow for independent adjustment of water volume or temperature to suit different needs.

[0016] In one optional embodiment, the depth of the open water tank is d1, where 3cm ≤ d1 ≤ 4cm; and / or,

[0017] The minimum distance between the open water tank and the hot plate is d2, where d2≤2cm.

[0018] Beneficial effects: With this setting, the depth of the open water tank is just right to match the allowable depth of the packaging machine, and the volume of the open water tank can meet the water consumption for one day. The operator only needs to add clean water to the open water tank before using the packaging machine every day to ensure a good static elimination effect.

[0019] When the minimum distance between the open water tank and the heating plate is less than or equal to 2cm, it can ensure that the distance between the open water tank and the heating plate is small, reduce the loss of residual heat from the heating plate, and thus help improve the static electricity elimination efficiency and energy utilization rate.

[0020] In one alternative embodiment, the misting water tank further includes a hanging structure, which connects the misting water tank to the packaging machine body, and the mist outlet of the misting water tank can contact the outer surface of the packaging film.

[0021] Beneficial effects: With this setup, the mist tank can release water mist onto the outer surface of the packaging film, and the packaging film can cover the mist outlet to prevent the water mist from escaping. This reduces water consumption and the frequency of water filling the mist tank while ensuring the anti-static effect. It also prevents water mist from flying onto the surface of the packaging machine body, causing scale buildup, or from contacting the heat-sealed side of the packaging film and causing mold and discoloration of the product packaging box.

[0022] In one alternative embodiment, the packaging machine further includes:

[0023] Water storage tank;

[0024] The water pump has its input end connected to a water storage tank and its output end connected to a mist outlet tank, and is used to supply water to the mist outlet tank.

[0025] Beneficial effects: With this configuration, the water pump can draw water from the water storage tank to supply water to the mist outlet tank. The water storage tank can be spaced apart from the packaging machine body, and the size of the water storage tank can be set to be larger, thereby increasing the water storage capacity and making it easier for users to add water to the water storage tank.

[0026] In one alternative implementation, the packaging machine includes:

[0027] A water level probe is used to detect the water level inside the mist tank.

[0028] The control module communicates with the water level probe and the water pump.

[0029] In one alternative embodiment, the water pump is a peristaltic pump, and further includes:

[0030] The pagoda-shaped connector is located on the water storage tank;

[0031] The first double-pagoda connector has its first end inserted into the inlet of the peristaltic pump.

[0032] The first water pipe has its first end fitted onto the outer periphery of the pagoda connector, and its second end fitted onto the second head of the first double pagoda connector.

[0033] The second double-pagoda connector has its first end inserted into the output end of the peristaltic pump.

[0034] The second water pipe has one end fitted onto the second head of the second double pagoda connector, and the other end connected to the mist tank.

[0035] Beneficial effect: With this configuration, the pagoda head can be used for a sealed connection with water pipes, thereby improving the system's sealing performance.

[0036] In one alternative embodiment, the mist tank includes an open tank body and a cover disposed on the open tank body.

[0037] Beneficial effects: When the cover is opened, it allows the operator to easily place the water level probe and control module into the open tank, and when closed, it prevents external dust and other contaminants from falling into the open water tank and slows down the evaporation rate of water in the mist tank.

[0038] In one alternative implementation, the atomizing module includes:

[0039] An ultrasonic transducer is located on the inner bottom surface of the mist outlet water tank.

[0040] The circuit board is located on the inner bottom surface of the mist outlet tank and is connected to the ultrasonic transducer. An insulating layer is formed on the surface of the circuit board.

[0041] Beneficial effects: With this configuration, the insulating layer can fill the gaps, preventing water mist, condensate, or accidental water seepage from the mist tank from entering the circuit board, avoiding short circuits or corrosion, and protecting sensitive components on the circuit board. Attached Figure Description

[0042] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a top view of a packaging machine according to an embodiment of the present utility model;

[0044] Figure 2 for Figure 1 Front view of the open water tank of the packaging machine shown;

[0045] Figure 3 for Figure 1 A top view of the open water tank of the packaging machine shown;

[0046] Figure 4 This is a side sectional view of an open water tank of a packaging machine according to an embodiment of the present utility model;

[0047] Figure 5 A misting water tank for a packaging machine according to an embodiment of this utility model;

[0048] Figure 6 This is a schematic diagram of a packaging machine according to an embodiment of the present utility model.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Packaging machine body; 101. Roller; 102. Ironing plate; 1021. Ironing plate fixing plate; 1022. First ironing plate; 1023. Second ironing plate;

[0051] 2. Open water tank; 201. First water tank; 202. Second water tank; 203. Suspension assembly;

[0052] 3. Water tank for misting; 301. Mist outlet; 302. Atomizing module; 3021. Ultrasonic transducer; 3022. Circuit board; 304. Open housing; 305. Cover; 306. Hanging structure;

[0053] 4. Water storage tank; 5. Water pump; 6. Water level probe; 7. Pagoda connector; 8. First double pagoda connector; 9. First water pipe; 10. Second double pagoda connector; 11. Second water pipe;

[0054] 12. Terminal block; 13. Switch;

[0055] 14. Packaging film. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0057] Static electricity is mainly generated through the following pathways:

[0058] The air conditioning supply in the workshop affects the production, transportation and storage of the transparent film. The transparent film generates static electricity in the three-dimensional transparent film packaging machine due to friction caused by the rubber rollers during the film unloading process.

[0059] In related technologies, when the static electricity removal effect of using ion air bars is not good, the static electricity removal effect of using humidifiers is more ideal. However, there are also some drawbacks. For example, the overall space of the three-dimensional transparent film packaging machine is large, and airflow changes caused by various reasons may prevent the water mist generated by the humidifier from adhering to the packaging film. This may result in water vapor adhering to the heat-sealed side of the packaging film, which may cause the packaging box to become moldy and discolored.

[0060] In addition, water mist adheres to the inner surface of the machine, producing large areas of scale that are difficult to clean.

[0061] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0062] According to an embodiment of the present invention, a packaging machine is provided, including a packaging machine body 1, an open water tank 2, and a mist-emitting water tank 3.

[0063] The packaging machine body 1 includes a roller 101 and a heating plate 102. The roller 101 conveys the packaging film 14, and the heating plate 102 heat-seals the packaging film 14. An open water tank 2 is located on one side of the heating plate 102. A misting water tank 3 has a mist outlet 301 and an atomizing module 302 inside. The mist outlet 301 can emit mist toward the packaging film 14 on the roller 101.

[0064] During the use of the packaging machine of this utility model, the plastic film in the area of ​​the heating plate 102 is prone to drying due to high temperature heat sealing, which generates static electricity, resulting in uneven sealing or material sticking. The heating plate 102 can use its own high temperature to heat the water in the open water tank 2, thereby causing the water in the open water tank 2 to evaporate, and then locally humidifying the area near the heating plate 102, thereby reducing the static electricity of the packaging machine near the heating plate 102.

[0065] In addition, the area of ​​roller 101 is prone to static electricity due to the high-speed friction of the packaging film 14, which attracts surrounding parts, causing the transparent film to not be properly laid down, resulting in transparent film accumulation or skewed laying, causing problems such as poor product appearance. The misting water tank 3 can spray mist toward the packaging film 14 on roller 101. As the packaging film 14 moves downward, the water mist adheres to the packaging film 14, reducing the resistance of the packaging film 14 before sliding across the stainless steel shell of the packaging machine body 1. This allows the static electricity to be discharged through the outer shell of the packaging machine body 1 and grounded, achieving the effect of eliminating static electricity.

[0066] Therefore, the packaging machine of this utility model can remove static electricity from the heating plate 102 area and the roller 101 area respectively, which can overcome the problems of short circuits in the internal circuit of the equipment and serious mold accumulation at the film outlet caused by static electricity, and even equipment failure and shutdown.

[0067] Furthermore, the packaging machine of this invention can avoid material buildup or machine stoppage at the discharge port caused by static electricity.

[0068] Calculations show that the packaging machine using this embodiment of the invention can save the following consumable costs annually:

[0069] 0.0021kg / time * 7 units * 5 times / day * 296 days / year * 4 lines = 87.024kg;

[0070] The annual savings in labor costs are as follows:

[0071] 2 min / time * 5 times / day * 296 days / year * 7 people / line = 20720 min / year.

[0072] In one embodiment, such as Figure 1 As shown, the hot plate 102 includes a hot plate fixing plate 1021, and the open water tank 2 includes a suspension assembly 203. The suspension assembly 203 is connected to the hot plate fixing plate 1021, and the open water tank 2 is suspended below the hot plate 102.

[0073] With this configuration, the residual heat of the heating plate 102 can be used to heat the water in the open water tank 2, thereby achieving static electricity removal near the heating plate 102 without increasing the energy consumption of the packaging machine. Furthermore, the packaging machine of this application places the open water tank 2 below the heating plate 102, making full use of the easily overlooked dead space below the heating plate 102, without requiring additional space on the sides or top of the equipment, making it suitable for compact production lines.

[0074] The open water tank 2 is suspended on the hot plate fixing plate 1021, which makes it convenient for the operator to add clean water to the open water tank 2 and facilitates the disassembly and cleaning of the open water tank 2.

[0075] In one embodiment, such as Figure 2 and Figure 3 As shown, the suspension component 203 is a hook.

[0076] It should be noted that the number of hooks is not limited in this embodiment. For example, in an optional embodiment, such as... Figure 2 and Figure 3 As shown, there are two hooks, which are spaced apart along the length of the open water tank 2.

[0077] In one embodiment, the hot plate 102 further includes a first hot plate 1022 and a second hot plate 1023 spaced apart on the hot plate fixing plate 1021, and the open water tank 2 includes a first water tank 201 located under the first hot plate 1022 and a second water tank 202 located under the second hot plate 1023.

[0078] With this setup, each heating plate 102 corresponds to a water tank, ensuring uniform humidity coverage in the heat-sealing area and avoiding uneven humidity caused by distance differences in a single water tank. The first heating plate 1022 (such as the pre-sealing area) and the second heating plate 1023 (such as the final sealing area) may generate different degrees of static electricity due to material temperature differences. The dual water tanks can independently adjust the water volume or water temperature to adapt to different needs.

[0079] In one embodiment, such as Figure 4 As shown, the depth of the open water tank 2 is d1, where 3cm≤d1≤4cm.

[0080] With this setup, the depth of the open water tank 2 is perfectly matched to the allowable depth of the packaging machine, and the volume of the open water tank 2 is sufficient to meet the water demand for one day. The operator only needs to add clean water to the open water tank 2 before using the packaging machine each day to ensure a good static electricity removal effect.

[0081] It should be noted that when adding clean water, the water level should ideally be 1cm below the top of the water tank.

[0082] The minimum distance between the open water tank 2 and the hot plate 102 is d2, where d2≤2cm.

[0083] This arrangement ensures a small gap between the open water tank 2 and the heating plate 102, reducing the loss of residual heat from the heating plate 102 and thus helping to improve static electricity elimination efficiency and energy utilization.

[0084] In one embodiment, such as Figure 5 As shown, the misting water tank 3 also includes a hanging structure 306. The misting water tank 3 is connected to the packaging machine body 1 through the hanging structure 306, and the mist outlet 301 of the misting water tank 3 can contact the outer surface of the packaging film 14.

[0085] With this configuration, the mist tank 3 can release water mist onto the outer surface of the packaging film 14. The packaging film 14 can cover the mist outlet 301 to prevent water mist from escaping. This reduces water consumption and the frequency of adding water to the mist tank 3 while ensuring the static electricity removal effect. It also prevents water mist from flying onto the surface of the packaging machine body, causing scale buildup, or from contacting the heat-sealing side of the packaging film 14 and causing the product packaging box to become moldy and discolored.

[0086] In one embodiment, the packaging machine further includes a water storage tank 4 and a water pump 5. The input end of the water pump 5 is connected to the water storage tank 4, and the output end is connected to the mist outlet tank 3, for supplying water to the mist outlet tank 3.

[0087] With this configuration, the water pump 5 can draw water from the water storage tank 4 and supply water to the mist outlet tank 3. The water storage tank 4 can be spaced apart from the packaging machine body 1. The size of the water storage tank 4 can be set to be larger, thereby increasing the water storage capacity and making it easier for users to add water to the water storage tank 4.

[0088] In one embodiment, the packaging machine further includes a water level probe 6 and a control module. The water level probe 6 is used to detect the water level in the mist tank 3. The control module is communicatively connected to the water level probe 6 and the water pump 5.

[0089] In one embodiment, the water level probe 6 is located inside the mist outlet water tank 3. When the water level in the mist outlet water tank 3 is lower than the lower end of the water level probe 6 after power is applied, the control module can control the water pump 5 to replenish water to the mist outlet water tank 3. When the water level in the mist outlet water tank 3 touches the water level probe 6, the control module can control the water pump 5 to stop replenishing water.

[0090] In one embodiment, the control module includes an N-channel power MOSFET and a 500 kΩ micro-adjustable potentiometer. After power-on, when the water level inside the mist tank 3 is lower than the lower end of the water level probe 6, the N-channel power MOSFET is connected to the positive terminal of a DC 24V power supply via the 500 kΩ adjustable potentiometer (the N-channel power MOSFET has a 15V Zener diode at its gate), causing the MOSFET to conduct and drive the peristaltic pump to replenish water into the mist tank 3 until the water level contacts the water level probe 6. Due to the conductivity of water, the gate voltage of the MOSFET is pulled low, preventing the MOSFET from conducting, and the water pump 5 stops replenishing water.

[0091] In one embodiment, such as Figure 6 As shown, the water pump 5 is a peristaltic pump, and also includes a pagoda connector 7, a first double pagoda connector 8, a first water pipe 9, a second double pagoda connector 10, and a second water pipe 11.

[0092] The pagoda connector 7 is located on the water storage tank 4. The first end of the first double pagoda connector 8 is inserted into the input end of the peristaltic pump. The first end of the first water pipe 9 is fitted onto the outer periphery of the pagoda connector 7, and the second end is fitted onto the second end of the first double pagoda connector 8. The first end of the second double pagoda connector 10 is inserted into the output end of the peristaltic pump. The first end of the second water pipe 11 is fitted onto the second end of the second double pagoda connector 10, and the other end is connected to the mist outlet tank 3.

[0093] With this configuration, the pagoda head can be used for a sealed connection with the water pipe, thereby improving the system's sealing performance.

[0094] In one embodiment, the peristaltic pump is a small, simple peristaltic pump for an electric soap dispenser, comprising a 24V DC motor, a pump head, and a built-in silicone tube. The 24V DC motor provides power to drive the pump head to rotate. The pump head is used to squeeze the silicone tube to generate negative / positive pressure, achieving directional liquid flow. The built-in silicone tube serves as a fluid channel and is resistant to repeated squeezing.

[0095] In one embodiment, the pagoda connector 7 is connected to the water storage tank 4 by a nut.

[0096] In one embodiment, the first water pipe 9 and the second water pipe 11 are silicone pipes.

[0097] In one embodiment, the packaging machine also includes lighting bulbs, which can provide illumination and enhance the aesthetics of the packaging machine.

[0098] In a preferred embodiment, the lighting lamp is a green one-watt LED (including an LED buck driver circuit).

[0099] In one embodiment, the mist-emitting water tank 3 includes an open tank body 304 and a cover 305 covering the open tank body 304.

[0100] When the cover 305 is opened, it allows the operator to easily place the water level probe 6 and the control module into the open tank 304. When closed, it prevents external dust and other contaminants from falling into the open water tank 2 and slows down the evaporation rate of water in the mist tank 3.

[0101] In one embodiment, the atomizing module 302 includes an ultrasonic transducer 3021 and a circuit board 3022.

[0102] The ultrasonic transducer 3021 is located on the inner bottom surface of the mist outlet water tank 3. The circuit board 3022 is located on the inner bottom surface of the mist outlet water tank 3 and is communicatively connected to the ultrasonic transducer 3021. An insulating layer is formed on the surface of the circuit board 3022.

[0103] With this configuration, the insulating layer can fill the gaps, preventing water mist, condensate, or accidental water seepage from the mist tank 3 from entering the circuit board 3022, avoiding short circuits or corrosion, and protecting the sensitive components on the circuit board 3022.

[0104] In one embodiment, the insulating layer is a silicone sealing layer, and the ultrasonic transducer 3021 and the circuit board are fixed to the inner bottom surface of the mist outlet water tank 3 by 704 transparent silicone.

[0105] In one embodiment, a switch and a terminal block are also included.

[0106] In one embodiment, the circuit of the ultrasonic transducer 3021 is a classic capacitive three-point oscillating circuit with an operating frequency of approximately 1.7 MHz. The ultrasonic transducer excites water to produce water mist, which diffuses inside the main body of the device and overflows from an opening on one side of the device.

[0107] In one embodiment, the packaging machine is preferably, but not limited to, a cigarette packaging machine or a three-dimensional transparent film packaging machine for facial masks.

[0108] In summary, the packaging machine of this utility model embodiment can achieve the following beneficial effects:

[0109] 1. Improve packaging quality: Static electricity may cause packaging materials to attract dust, impurities, or stick together. Adding an anti-static water tank can effectively eliminate static electricity, making the packaging materials cleaner and flatter, thereby improving packaging quality.

[0110] 2. Reduce material waste: Static electricity can cause materials to stick together, leading to severe film stacking during packaging and wasting packaging materials. Removing static electricity helps reduce these problems and lower material loss.

[0111] 3. Enhanced production efficiency: By avoiding interference and malfunctions caused by static electricity, the cigarette packaging machine operates more smoothly, reducing downtime and the number of adjustments, which helps to improve overall production efficiency.

[0112] 4. Protect equipment: Static electricity may damage the electronic components and control system of the cigarette packaging machine. Installing an anti-static water tank can reduce the impact of static electricity on the equipment and extend its service life.

[0113] 5. Improve the working environment: Reducing static electricity can lower the risk of electrostatic sparks from packaging materials, making the working environment safer. It also reduces the discomfort of electric shocks experienced by operators.

[0114] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope of protection claimed by the present invention.

Claims

1. A packaging machine, characterized in that, include: The packaging machine body (1) includes a roller (101) and a heating plate (102). The roller (101) is capable of conveying a packaging film (14), and the heating plate (102) is used to heat seal the packaging film (14). An open water tank (2) is located on one side of the hot plate (102); A mist-emitting water tank (3) is provided with a mist outlet (301). The mist-emitting water tank (3) is provided with an atomizing module (302). The mist outlet (301) can emit mist toward the packaging film (14) on the roller (101).

2. The packaging machine according to claim 1, characterized in that, The hot plate (102) includes a hot plate fixing plate (1021), and the open water tank (2) includes a suspension assembly (203). The suspension assembly (203) is connected to the hot plate fixing plate (1021), and the open water tank (2) is suspended below the hot plate (102).

3. The packaging machine according to claim 2, characterized in that, The hot plate (102) further includes a first hot plate (1022) and a second hot plate (1023) spaced apart on the hot plate fixing plate (1021), and the open water tank (2) includes a first water tank (201) located under the first hot plate (1022) and a second water tank (202) located under the second hot plate (1023).

4. The packaging machine according to claim 1, characterized in that, The depth of the open water tank (2) is d1, 3cm≤d1≤4cm; and / or, The minimum distance between the open water tank (2) and the hot plate (102) is d2, where d2≤2cm.

5. The packaging machine according to any one of claims 1 to 4, characterized in that, The mist outlet water tank (3) also includes a hanging structure (306), the mist outlet water tank (3) is connected to the packaging machine body (1) through the hanging structure (306), and the mist outlet (301) of the mist outlet water tank (3) can contact the outer surface of the packaging film (14).

6. The packaging machine according to any one of claims 1 to 4, characterized in that, Also includes: Water storage tank (4); A water pump (5) is connected to the water storage tank (4) at its input end and to the mist outlet tank (3) at its output end, and is used to supply water to the mist outlet tank (3).

7. The packaging machine according to claim 6, characterized in that, include: A water level probe (6) is used to detect the water level in the mist outlet water tank (3); The control module is communicatively connected to the water level probe (6) and the water pump (5).

8. The packaging machine according to claim 6, characterized in that, The water pump (5) is a peristaltic pump, and also includes: The pagoda connector (7) is located on the water storage tank (4); The first double pagoda connector (8) has its first end inserted into the input end of the peristaltic pump; The first water pipe (9) has its first end fitted on the outer periphery of the pagoda connector (7) and its second end fitted on the second head of the first double pagoda connector (8). The second double pagoda connector (10) has its first end inserted into the output end of the peristaltic pump; The second water pipe (11) has its first end fitted onto the second end of the second double pagoda connector (10), and its other end connected to the mist outlet water tank (3).

9. The packaging machine according to any one of claims 1 to 4, characterized in that, The mist-emitting water tank (3) includes an open tank body (304) and a cover (305) covering the open tank body (304).

10. The packaging machine according to any one of claims 1 to 4, characterized in that, The atomizing module (302) includes: An ultrasonic transducer (3021) is disposed on the inner bottom surface of the mist outlet water tank (3); A circuit board (3022) is disposed on the inner bottom surface of the mist outlet water tank (3) and is communicatively connected to the ultrasonic transducer (3021). An insulating layer is formed on the surface of the circuit board (3022).

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