Sealing method and sealing machine

Abstract

The application relates to the technical field of intelligent manufacturing, and discloses a sealing method and a sealing machine. The sealing method comprises the following steps: in the case that a packaging bag is clamped on a heat sealing device, triggering a vacuum pump of a vacuum machine box to operate, so that a suction nozzle assembly performs vacuum suction on the packaging bag; in the case that vacuum extraction in the packaging bag reaches a preset condition, triggering an inert gas manufacturing machine to operate, so that the suction nozzle assembly performs vacuum suction on the packaging bag and simultaneously fills the packaging bag with inert gas; in the case that the humidity in the packaging bag is less than a preset humidity and the vacuum degree is less than a first preset vacuum degree, triggering the heat sealing device to seal the packaging bag. In this way, by wrapping the adhesive with a large amount of inert gas and reducing the contact with air, the reaction between active components such as oxygen and water vapor in the air and the adhesive can be slowed down, so that the aging, degradation or failure of the adhesive is avoided, and the shelf life of the adhesive is prolonged.

Description

Technical Field

[0001] This application relates to the field of intelligent manufacturing technology, and in particular to a sealing method and sealing machine. Background Technology

[0002] Currently, after adhesive production is completed, the adhesive is usually bagged and the bags containing the adhesive are sealed. In related technologies, sealing machines directly seal the bags containing the adhesive; however, this method of sealing typically results in a shorter shelf life for the adhesive.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0005] This application provides a sealing method and sealing machine to improve the shelf life of adhesives.

[0006] This application provides a sealing method applied to a sealing machine. The sealing machine includes a frame, a heat sealing device mounted on the frame, and a vacuum nozzle assembly mounted on the frame. The heat sealing device is used to clamp and seal a packaging bag. The vacuum nozzle assembly is connected to a vacuum chamber and an inert gas generator via a pipe, and the vacuum nozzle assembly can extend into the packaging bag. The packaging bag is used to hold adhesive. The sealing method includes: when the packaging bag is clamped by the heat sealing device, triggering the vacuum pump of the vacuum chamber to operate, causing the vacuum nozzle assembly to evacuate the packaging bag; when the vacuum extraction inside the packaging bag reaches a preset condition, triggering the inert gas generator to operate, causing the vacuum nozzle assembly to evacuate the packaging bag while simultaneously filling it with inert gas; when the humidity inside the packaging bag is less than a preset humidity and the vacuum degree inside the packaging bag is less than a first preset vacuum degree, triggering the heat sealing device to seal the packaging bag.

[0007] In the above embodiments, the packaging bag containing the adhesive is evacuated, and then inert gas is added. This encapsulates the adhesive with a large amount of inert gas, reducing its contact with air. This slows down the reaction between the adhesive and active ingredients such as oxygen and water vapor in the air, thereby preventing the adhesive from aging, degrading, or failing, and extending its shelf life. Simultaneously, by monitoring the humidity inside the packaging bag, the bag is only sealed when the humidity is below a preset level. This further controls the moisture content of the air inside the bag, further mitigating the reaction between moisture in the air and the adhesive, thus extending the adhesive's shelf life.

[0008] Furthermore, the sealing method also includes: real-time detection of the vacuum level inside the packaging bag; and determining whether the vacuum level inside the packaging bag meets preset conditions.

[0009] In the above embodiments, by detecting the vacuum level inside the packaging bag in real time, the vacuum status inside the packaging bag can be understood in a timely manner, and it can be determined in a timely manner whether the vacuum inside the packaging bag has reached the preset conditions, so that inert gas can be injected in a timely manner, thereby speeding up the sealing speed of the packaging bag containing the adhesive.

[0010] Furthermore, determining whether the vacuum inside the packaging bag meets the preset conditions based on the vacuum degree includes: determining whether the vacuum inside the packaging bag meets the preset conditions based on the vacuum degree includes: obtaining the running time of the vacuum chamber; if the vacuum degree is greater than a second preset vacuum degree and the running time is greater than a first preset time, determining that the vacuum inside the packaging bag meets the preset conditions; otherwise, determining that the vacuum inside the packaging bag does not meet the preset conditions.

[0011] It is understandable that the longer the vacuum chamber runs, the more vacuum can theoretically be extracted. In the above implementation, by combining the vacuum level and the running time of the vacuum chamber to determine whether the vacuum inside the packaging bag has reached the preset conditions, the judgment result of the vacuum status inside the packaging bag can be more accurate.

[0012] Furthermore, triggering the heat-sealing device to seal the packaging bag includes: triggering the heat-sealing device to seal the packaging bag multiple times.

[0013] In the above embodiments, by sealing the packaging bag multiple times, even if one of the seals is damaged, the packaging bag can still remain sealed, thereby extending the life of the adhesive contained inside the packaging bag.

[0014] This application provides a sealing machine, including: a frame; a heat sealing device disposed on the frame, the heat sealing device being used to clamp and seal the packaging bag; a suction nozzle assembly disposed on the frame; the suction nozzle assembly being connected to a vacuum chamber and an inert gas generating machine via a pipe; the suction nozzle assembly being able to extend into the packaging bag; and a processor for controlling the operation of the vacuum chamber, the inert gas generating machine, and the heat sealing device according to the above method.

[0015] In the above embodiment, an extraction nozzle assembly connecting the vacuum chamber and the inert gas generator is provided. This facilitates the vacuuming of the packaging bag and the filling with inert gas, allowing the adhesive inside the bag to be encapsulated by a large amount of inert gas. This reduces contact with air, slowing down the reaction between the adhesive and active ingredients such as oxygen and water vapor in the air, thus preventing aging, degradation, or failure of the adhesive and extending its shelf life. Furthermore, by incorporating a humidity detector, the packaging bag is sealed only when the humidity inside is lower than a preset level. This further controls the moisture content of the air inside the bag, further mitigating the reaction between moisture in the air and the adhesive, thereby extending the adhesive's shelf life.

[0016] Furthermore, the sealing machine also includes: a humidity detection device, which is connected to the first suction nozzle and / or the second suction nozzle via a pipe; and a vacuum detection device, which is installed on the first suction nozzle and / or the second suction nozzle.

[0017] In the above embodiments, by connecting the humidity detection device to the first and / or second suction nozzle, the humidity detection device can detect the humidity of the gas passing through the first and / or second suction nozzles, and the humidity of the gas can accurately reflect the humidity of the gas inside the packaging bag. By setting the vacuum detection device on the first and / or second suction nozzles, since the first and / or second suction nozzles extend into the packaging bag to create a vacuum, the vacuum detection device can come into contact with the air inside the packaging bag to accurately detect the vacuum level inside the packaging bag.

[0018] Furthermore, the heat sealing device includes: a heat sealing rod for sealing the packaging bag; a clamping device disposed on the heat sealing rod for clamping the packaging bag; a transmission screw, one end of which is connected to the heat sealing rod; and a transmission motor connected to the other end of the transmission screw, wherein the transmission motor rotates to drive the transmission screw to move, thereby driving the heat sealing rod to move.

[0019] In the above embodiment, the heat sealing rod is connected to the drive motor through the drive screw, so that the heat sealing rod can drive the packaging bag to move, thereby flexibly controlling the position of the packaging bag.

[0020] Furthermore, the sealing machine also includes a display screen for displaying parameters of the sealing machine.

[0021] In the above embodiments, by setting up a display screen to show the parameters of the sealing machine, it is convenient for the sealing machine operator to understand the production status of the adhesive.

[0022] Furthermore, the sealing machine also includes: a first start button, disposed on the frame; and a second start button, disposed on the frame, wherein when both the first start button and the second start button are pressed, the heat sealing device is triggered to seal the packaging bag.

[0023] In the above embodiments, the program is set to trigger the heat sealing device to seal the packaging bag when the first start button and the second start button are pressed, allowing the user to manually operate the sealing machine to seal the packaging bag, thus increasing the flexibility of sealing the packaging bag.

[0024] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0025] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are considered similar elements. The drawings do not constitute a limitation of scale, and wherein:

[0026] Figure 1 This is a schematic diagram of a sealing machine provided in an embodiment of this application;

[0027] Figure 2 This is a front view schematic diagram of a sealing machine provided in an embodiment of this application;

[0028] Figure 3 This is a bottom view schematic diagram of a sealing machine provided in an embodiment of this application;

[0029] Figure 4 This is a top view schematic diagram of a sealing machine provided in an embodiment of this application;

[0030] Figure 5 This is a right-side view of a sealing machine provided in an embodiment of this application;

[0031] Figure 6 This is a left-side view of a sealing machine provided in an embodiment of this application;

[0032] Figure 7 This is a schematic diagram of a sealing method provided in an embodiment of this application.

[0033] Figure label:

[0034] 10: Frame; 11: Base; 12: Main support; 13: Support bracket; 14: First housing; 15: Connecting bracket; 16: Protective net; 20: Heat sealing device; 21: Heat sealing rod; 22: Transmission screw; 23: Transmission motor; 30: Vacuum nozzle assembly; 31: First vacuum nozzle; 32: Second vacuum nozzle; 40: Processor; 50: Vacuum housing; 60: Inert gas generator; 70: Display screen; 71: Vacuum degree display button; 72: First start button; 73: Second start button; 74: Power on button; 75: Alarm indicator light; 76: System indicator light; 77: First release button; 78: Second release button. Detailed Implementation

[0035] To provide a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this application. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0036] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0037] Unless otherwise stated, the term "multiple" means two or more.

[0038] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0039] Example 1

[0040] Combination Figures 1 to 6As shown in the illustration, this application provides a sealing machine, including: a frame 10, a heat sealing device 20, an air extraction nozzle assembly 30, and a processor 40. The heat sealing device 20 is mounted on the frame 10 and is used to clamp and seal packaging bags. The air extraction nozzle assembly 30 is mounted on the frame 10 and is connected to a vacuum chamber 50 and an inert gas generator 60 via pipes, and the air extraction nozzle assembly 30 can extend into the packaging bag. The processor 40 is used to control the operation of the vacuum chamber 50, the inert gas generator 60, and the heat sealing device 20.

[0041] In some embodiments, the processor 40 can control the operation of the vacuum chamber 50, the inert gas generator 60, and the heat sealing device 20 in the following ways: when the packaging bag is clamped in the heat sealing device 20, the vacuum pump of the vacuum chamber 50 is triggered to operate, causing the suction nozzle assembly 30 to evacuate the packaging bag; when the vacuum extraction inside the packaging bag reaches a preset condition, the inert gas generator 60 is triggered to operate, causing the suction nozzle assembly 30 to evacuate the packaging bag while simultaneously filling it with inert gas; when the humidity inside the packaging bag is less than a preset humidity and the vacuum degree is less than a first preset vacuum degree, the heat sealing device 20 is triggered to seal the packaging bag.

[0042] In the above embodiments, it can be determined whether the vacuum has reached the preset conditions by: real-time detection of the vacuum level inside the packaging bag; and determining whether the vacuum level inside the packaging bag has reached the preset conditions based on the vacuum level.

[0043] The method of determining whether the vacuum inside the packaging bag has reached the preset condition based on the vacuum degree can be as follows: obtain the running time of the vacuum chamber 50; if the vacuum degree is greater than the second preset vacuum degree and the running time is greater than the first preset time, determine that the vacuum inside the packaging bag has reached the preset condition; otherwise, determine that the vacuum inside the packaging bag has not reached the preset condition.

[0044] The heat-sealing device 20 can seal the packaging bag by triggering it multiple times.

[0045] For example, processor 40 can be a PLC (Programmable Logic Controller). The PLC has data transmission capabilities, enabling it to exchange information acquired by the sealing machine with information from the production line, and the data can be transmitted to a pre-defined numerical control center. Here, the production line refers to the adhesive production line.

[0046] It is understandable, but engineers can also choose other processors 40 that can control the sealing machine, such as microcontrollers, ARM processors 40, etc.

[0047] In some embodiments, the frame 10 includes a base 11 and a main support 12, with the main support 12 fixedly mounted on the base 11. The main support 12 is hollow, and the connecting pipes between the suction nozzle assembly 30 and the vacuum chamber 50, as well as between the suction nozzle assembly 30 and the inert gas generator 60, can be located in the hollow portion of the main support 12, making the sealing machine appear simple in appearance.

[0048] The base 11 includes a base plate and multiple support legs. The base plate is fixed to the support legs, and a main support frame 12 is provided on the base plate. For example, the base plate is provided with four fixing holes, and the four support legs correspond one-to-one with the four fixing holes. Each support leg passes through the corresponding fixing hole for fixing to form the base 11.

[0049] In the above embodiment, the frame 10 further includes a support bracket 13. The support bracket 13 connects the base 11 and the main support bracket 12, providing support for the main support bracket 12 and allowing it to be more stably mounted on the base 11. For example, the support bracket 13 is inclined on the base 11, with one end fixed to the base 11 and the other end fixed to the main support bracket 12. The inclination angle between the support bracket 13 and the base 11 can be set by the engineer according to requirements.

[0050] In some embodiments, the vacuum chamber 50 may be fixedly mounted on the base 11. The inert gas generator 60 may be fixedly mounted on the main support 12.

[0051] It is understood that the vacuum chamber 50 is used to create a vacuum through the vacuum pump within the vacuum chamber 50. The inert gas generator 60 is used to generate inert gas.

[0052] The specific inert gas used can be set according to the engineer's needs, such as nitrogen, argon, helium, etc.

[0053] In some embodiments, the suction nozzle assembly 30 may include a first suction nozzle 31 and a second suction nozzle 32. The first suction nozzle 31 is disposed on the frame 10 and is connected to the vacuum chamber 50 via a pipe. The second suction nozzle 32 is disposed on the frame 10 and is arranged side by side with the first suction nozzle 31; the second suction nozzle 32 is connected to the vacuum chamber 50 and the inert gas generator 60 via a pipe.

[0054] In some embodiments, the main support 12 is connected to the first housing 14 via a connecting bracket 15. The connecting bracket 15 is hollow. A first suction nozzle 31 and a second suction nozzle 32 are provided on the housing of the first housing 14. The connecting pipe of the suction assembly passes through the housing of the first housing, the hollow portion of the connecting bracket 15, and the hollow portion of the main support 12, and connects to the vacuum housing 50 and the inert gas generator 60. It is understood that the processor 40 may also be disposed within the housing of the first housing 14.

[0055] In some embodiments, a drive assembly is further provided on the first chassis, and the drive assembly is connected to the first suction nozzle 31 and the second suction nozzle 32. The drive assembly is used to drive the first suction nozzle 31 and the second suction nozzle 32 to rise or fall.

[0056] For example, the drive assembly may include a slide rail and a slider. A slider is disposed within the slide rail, and the first suction nozzle 31 and the second suction nozzle 32 are fixed by the slider. The movement of the first suction nozzle 31 and the second suction nozzle 32 is controlled by controlling the movement distance of the slider. Alternatively, the drive assembly may consist of a motor and a screw. One end of the screw is connected to the motor, and the other end is connected to the suction nozzle. The motor drives the screw to rotate, thereby moving the suction nozzle.

[0057] It is worth noting that the suction nozzle assembly 30 may include multiple suction nozzles, and the number of suction nozzles can be designed according to the engineer's requirements.

[0058] In some embodiments, the sealing machine is equipped with a humidity detection device. The humidity detection device can be connected to the first suction nozzle 31 and / or the second suction nozzle 32 via a pipe.

[0059] The humidity detection device can be a humidity sensor. In this case, the humidity sensor is electrically connected to the processor 40 for communication. Alternatively, the humidity detection device can be a humidity sensor with wireless transmission capabilities. In this case, the humidity sensor can communicate with the processor 40 via wireless transmission.

[0060] For example, the vacuum chamber 50 and the inert gas generator 60 are connected to the suction nozzle assembly 30 via pipes. A humidity sensor is installed at the connection point between the pipe and the suction nozzle assembly 30, and inside the pipe. Since the gas inside the packaging bag flows through the pipes, the humidity of the gas inside the packaging bag can be determined by detecting the humidity at the connection point between the pipe and the suction nozzle assembly 30, thus allowing for an assessment of whether the humidity inside the packaging bag meets the sealing requirements.

[0061] It is understood that the humidity detection device can also be placed in other locations, such as attaching it to the outer casing of the first suction nozzle 31 and / or the second suction nozzle 32. In this way, when the first suction nozzle 31 and / or the second suction nozzle 32 are inserted into the packaging bag, the humidity inside the packaging bag can be detected.

[0062] In some embodiments, the sealing machine is equipped with a vacuum detection device. The vacuum detection device is located on the first suction nozzle 31 and / or the second suction nozzle 32.

[0063] The vacuum detection device can be a vacuum sensor. In this case, the vacuum sensor is electrically connected to the processor 40 for communication. Alternatively, the vacuum detection device can be a vacuum sensor with wireless transmission capabilities. In this case, the vacuum sensor can communicate with the processor 40 via wireless transmission.

[0064] For example, the vacuum detection device is disposed on the housing of the first suction nozzle 31, or the vacuum detection device is disposed on the housing of the second suction nozzle 32.

[0065] It is understandable that the wireless transmission function can be configured by the engineer according to their needs, such as Bluetooth, Wi-Fi, etc.

[0066] In some embodiments, the heat sealing device 20 includes: a heat sealing rod 21, a clamping device, a drive screw 22, and a drive motor 23. The heat sealing rod 21 is used to seal the packaging bag. The clamping device is disposed on the heat sealing rod 21 and is used to clamp the packaging bag. One end of the drive screw 22 is connected to the heat sealing rod 21; the drive motor 23 is connected to the other end of the drive screw 22, and the rotation of the drive motor 23 drives the drive screw 22 to move, thereby moving the heat sealing rod 21.

[0067] In some embodiments, a protective net 16 is also provided on one side of the main support 12 where the air extraction nozzle assembly 30 is located, so as to prevent the operator of the sealing machine from coming into contact with the transmission screw 22 and causing mechanical injury.

[0068] In some embodiments, the sealing machine further includes a display screen 70. The display screen 70 is used to display parameters of the sealing machine.

[0069] The parameters of the sealing machine can be parameters measured by its components, such as humidity values ​​measured by a humidity detection device or vacuum levels measured by a vacuum detection device. The parameters can also be the machine's operating parameters, such as whether the sealing machine is currently performing vacuuming or filling with inert gas.

[0070] For example, the display screen 70 can be mounted on the outer casing of the first housing 14 and electrically connected to the processor 40. The display screen 70 can also be mounted independently outside the rack 10 and interact with the processor 40 via wireless transmission.

[0071] In some embodiments, the sealing machine further includes a vacuum level display button 71. The vacuum level display button 71 is electrically connected to the processor 40. When the vacuum level display button 71 is pressed, the vacuum level value detected by the vacuum level detection device is displayed on the display screen 70.

[0072] For example, the vacuum level display button 71 can be a display button with a display device. For instance, a touch screen 70 is provided, on which the user-operable vacuum level display button 71 is displayed. In this case, the vacuum level value can also be displayed on the touch screen 70.

[0073] In some embodiments, the sealing machine further includes a first start button 72 and a second start button 73. The first start button 72 is mounted on the frame 10. The second start button 73 is mounted on the frame 10. When both the first start button 72 and the second start button 73 are pressed, the heat sealing device 20 is triggered to seal the packaging bag. Thus, the equipment is equipped with dual start buttons, namely the first start button 72 and the second start button 73, which avoids the risk of operators' hands being pinched.

[0074] In some embodiments, the sealing machine further includes a power button 74. When the power button 74 is pressed, the sealing machine is in the start state.

[0075] In some embodiments, the sealing machine further includes an alarm indicator light 75. The alarm indicator light 75 can be used to perform a first preset operation in the event of an abnormality in the sealing machine. The first preset operation, for example, is to trigger the alarm indicator light 75 to flash. This allows the operator to easily determine whether the sealing machine is functioning properly.

[0076] In some embodiments, the sealing machine further includes a system indicator light 76. The system indicator light 76 can perform a second preset operation according to different operating states of the sealing machine. The operating state of the sealing machine may include, for example, performing a heat-sealing operation on the packaging bag or vacuuming the packaging bag. The second preset operation may include, for example, triggering the system indicator light 76 to illuminate according to a preset color. This allows the operator to easily understand the current operating status of the sealing machine.

[0077] In some embodiments, the sealing machine further includes a first release button 77. The first release button 77 is used to control whether the sealed packaging bag enters the next process.

[0078] In some embodiments, the sealing machine further includes a second release button 78. The second release button 78 is used to control whether the product from the previous process enters the sealing machine.

[0079] Example 2

[0080] This application provides a sealing method applied to the sealing machine of Embodiment 1. See also... Figure 7 As shown, Figure 7 This is a flowchart illustrating the sealing method provided in the embodiments of this application, including:

[0081] In step S101, with the packaging bag clamped in the heat sealing device 20, the vacuum pump of the vacuum chamber 50 is triggered to run, causing the vacuum nozzle assembly 30 to evacuate the packaging bag.

[0082] In some embodiments, when the vacuum nozzle assembly 30 includes a first vacuum nozzle 31 and a second vacuum nozzle 32, vacuuming the packaging bag by the vacuum nozzle assembly 30 can be performed by the first vacuum nozzle 31 and the second vacuum nozzle 32 together, or by vacuuming only by the first vacuum nozzle 31, or by vacuuming only by the second vacuum nozzle 32.

[0083] In step S102, when the vacuum extraction inside the packaging bag reaches the preset conditions, the inert gas generator 60 is triggered to run, causing the vacuum nozzle assembly 30 to evacuate the packaging bag and simultaneously fill it with inert gas.

[0084] For example, suppose the vacuum nozzle assembly 30 includes a first vacuum nozzle 31 and a second vacuum nozzle 32. Vacuuming the packaging bag with the vacuum nozzle assembly 30 while simultaneously filling it with inert gas can be achieved by continuing vacuuming through the first vacuum nozzle 31 and replenishing the inert gas through the second vacuum nozzle 32.

[0085] In some embodiments, it can be determined whether the vacuum has reached the preset conditions by: detecting the vacuum level inside the packaging bag in real time; and determining whether the vacuum level inside the packaging bag has reached the preset conditions based on the vacuum level.

[0086] In one optional embodiment of the above, determining whether the vacuum inside the packaging bag has reached the preset condition based on the vacuum degree can be: if the vacuum degree is greater than a second preset vacuum degree, it is determined that the vacuum inside the packaging bag has reached the preset condition; otherwise, it is determined that the vacuum inside the packaging bag has not reached the preset condition.

[0087] In another optional embodiment described above, determining whether the vacuum inside the packaging bag meets the preset conditions based on the vacuum degree can be done by: obtaining the running time of the vacuum chamber 50; if the vacuum degree is greater than the second preset vacuum degree and the running time is greater than the first preset time, determining that the vacuum inside the packaging bag meets the preset conditions; otherwise, determining that the vacuum inside the packaging bag does not meet the preset conditions.

[0088] In step S103, when the humidity inside the packaging bag is lower than the preset humidity and the vacuum degree is lower than the first preset vacuum degree, the heat sealing device 20 is triggered to seal the packaging bag.

[0089] In some embodiments, the heat-sealing device 20 may seal the packaging bag by triggering the heat-sealing device 20 to seal the packaging bag multiple times.

[0090] For example, the inert gas generator 60 is a nitrogen generator. A packaging bag is held in the heat-sealing device 20. When the sealing machine is running, the drive motor 23 drives the drive screw 22 up and down, moving the packaging bag to a designated position. Then, the first suction nozzle 31 and the second suction nozzle 32 descend and extend into the packaging bag to be heat-sealed. The vacuum pump in the vacuum chamber 50 starts working, drawing air out of the packaging bag through the first and second suction nozzles 31 and 32. The vacuum chamber 50 is connected to the first and second suction nozzles 31 and 32 via pipes hidden within the frame. The vacuum level can be displayed on the screen 70. When the vacuum level reaches a second preset vacuum level, nitrogen is added to the packaging bag through the second suction nozzle 32, while the first suction nozzle 31 remains in a vacuum state to replace the air inside the packaging bag. The second suction nozzle 32 is also connected to the nitrogen generator via pipes hidden within the frame. At this point, the humidity and vacuum levels are detected. If the humidity inside the packaging bag is lower than the preset humidity and the vacuum level is lower than the first preset vacuum level, the first suction nozzle 31 and the second suction nozzle 32 are raised to leave the packaging bag. Then, the heat sealing rod 21 is closed and heated to complete the sealing of the packaging bag.

[0091] The technical solutions of this application embodiment can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this application embodiment. The aforementioned storage medium can be a non-transitory storage medium, including various media capable of storing program code such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks, or it can be a transient storage medium.

[0092] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0093] The above descriptions are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. Furthermore, the above embodiments can be combined with each other to form new embodiments without conflict.

Claims

1. A sealing method, characterized in that, An application is made in a sealing machine, the sealing machine including a frame, a heat sealing device mounted on the frame, and an air extraction nozzle assembly mounted on the frame; the heat sealing device is used to clamp and seal packaging bags; the air extraction nozzle assembly is connected to a vacuum chamber and an inert gas generating machine via pipes, and the air extraction nozzle assembly can extend into the packaging bag; the air extraction nozzle assembly includes: a first air extraction nozzle, the first air extraction nozzle being mounted on the frame and connected to the vacuum chamber via a pipe; and a second air extraction nozzle, the second air extraction nozzle being mounted on the frame and arranged side by side with the first air extraction nozzle; the second air extraction nozzle is connected to the vacuum chamber and the inert gas generating machine via pipes. A vacuum degree detection device is installed on the first suction nozzle and / or the second suction nozzle; the vacuum degree detection device is communicatively connected to the processor. The humidity detection device is affixed to the outer shell of the first and / or second air suction nozzle; or, the humidity detection device is connected to the first and / or second air suction nozzle via a pipe. The humidity inside the packaging bag is detected when the first suction nozzle and / or the second suction nozzle are inserted into the packaging bag; the packaging bag is used to hold the adhesive; the method includes: When the packaging bag is clamped in the heat sealing device, the vacuum pump of the vacuum chamber is triggered to run, so that the vacuum nozzle assembly extends into the packaging bag to evacuate the packaging bag. Real-time monitoring of the vacuum level inside the packaging bag; Obtain the operating time of the vacuum chamber; If the vacuum level is greater than the second preset vacuum level and the running time is greater than the first preset time, it is determined that the vacuum inside the packaging bag has reached the preset condition; otherwise, it is determined that the vacuum inside the packaging bag has not reached the preset condition. When the vacuum extraction inside the packaging bag reaches the preset conditions, the inert gas generating machine is triggered to operate, causing the suction nozzle assembly to evacuate the packaging bag and simultaneously fill it with inert gas; wherein, the vacuum extraction continues through the first suction nozzle, and inert gas is replenished through the second suction nozzle. When the humidity inside the packaging bag is lower than the preset humidity and the vacuum degree is lower than the first preset vacuum degree, the first suction nozzle and the second suction nozzle are removed from the packaging bag, triggering the heat sealing device to seal the packaging bag.

2. The method according to claim 1, characterized in that, Triggering the heat sealing device to seal the packaging bag includes: The heat sealing device is triggered to seal the packaging bag multiple times.

3. A sealing machine, characterized in that, include: frame; A heat sealing device, which is mounted on the frame, is used to clamp and seal the packaging bag; A suction nozzle assembly, wherein the suction nozzle assembly is mounted on the frame; The suction nozzle assembly is connected to the vacuum chamber and the inert gas generator via a pipe; the suction nozzle assembly can extend into the packaging bag; the suction nozzle assembly includes: a first suction nozzle, which is disposed on the frame and connected to the vacuum chamber via a pipe; and a second suction nozzle, which is disposed on the frame and arranged side by side with the first suction nozzle; the second suction nozzle is connected to the vacuum chamber and the inert gas generator via a pipe. A processor for controlling the operation of the vacuum chamber, the inert gas generator, and the heat sealing device according to any one of claims 1 to 2; A vacuum degree detection device is installed on the first suction nozzle and / or the second suction nozzle; the vacuum degree detection device is communicatively connected to the processor. The humidity detection device is attached to the outer shell of the first and / or second air extraction nozzles, and the humidity detection device is communicatively connected to the processor; or, The humidity detection device is connected to the first suction nozzle and / or the second suction nozzle via a pipe, and the humidity detection device is communicatively connected to the processor. The humidity inside the packaging bag is detected when the first and / or the second suction nozzle is inserted into the packaging bag.

4. The sealing machine according to claim 3, characterized in that, The heat sealing device includes: A heat-sealing rod is used to seal the packaging bag; A clamping device is provided on the heat-sealing rod for clamping the packaging bag; A lead screw, one end of which is connected to the heat-sealing rod; A drive motor is connected to the other end of the drive screw. The rotation of the drive motor drives the drive screw to move, thereby moving the heat sealing rod.

5. The sealing machine according to claim 3, characterized in that, The sealing machine also includes: A display screen is used to display the parameters of the sealing machine.

6. The sealing machine according to claim 3, characterized in that, The sealing machine also includes: The first start button is located on the rack; A second start button is located on the frame. When both the first start button and the second start button are pressed, the heat sealing device is triggered to seal the packaging bag.

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