CN116573212A - Method for wet vacuum sealing, control system and vacuum packaging machine - Google Patents
Method for wet vacuum sealing, control system and vacuum packaging machine Download PDFInfo
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- CN116573212A CN116573212A CN202310724348.4A CN202310724348A CN116573212A CN 116573212 A CN116573212 A CN 116573212A CN 202310724348 A CN202310724348 A CN 202310724348A CN 116573212 A CN116573212 A CN 116573212A
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- 238000009461 vacuum packaging Methods 0.000 title claims abstract description 247
- 238000007789 sealing Methods 0.000 title claims abstract description 242
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004806 packaging method and process Methods 0.000 claims abstract description 213
- 239000007788 liquid Substances 0.000 claims abstract description 98
- 238000012544 monitoring process Methods 0.000 claims abstract description 97
- 238000010438 heat treatment Methods 0.000 claims abstract description 78
- 238000000605 extraction Methods 0.000 claims abstract description 26
- 238000003825 pressing Methods 0.000 claims description 45
- 238000007726 management method Methods 0.000 claims description 40
- 238000005086 pumping Methods 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
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- 238000004364 calculation method Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 description 10
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000047 product Substances 0.000 description 6
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- 239000012263 liquid product Substances 0.000 description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/06—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being arranged for insertion into, and withdrawal from, the mouth of a filled container and operating in conjunction with means for sealing the container mouth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B57/00—Automatic control, checking, warning, or safety devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The application relates to the technical field of vacuum packaging machines, in particular to a method, a system and a vacuum tube packaging machine for wet vacuum sealing, creatively provides a thought of adopting refined control for a vacuum packaging bag, and carries out calculation of vacuum degree data, air extraction time data and heating data and interference sealing monitoring data based on experience or a preset algorithm or directly gives related data by an operator based on experience reference data and the like through acquiring various data of the vacuum bag and internal memory liquid in advance, so as to accurately monitor and control the whole sealing operation, furthest solve the technical problem that the sealing position is often reached by the liquid level in the prior art to affect packaging.
Description
Technical Field
The application relates to the technical field of vacuum packaging, in particular to a method and a system for wet vacuum sealing and a vacuum packaging machine.
Background
The vacuum packaging machine is packaging equipment capable of automatically pumping out air in the packaging bag and completing a sealing process after reaching a preset vacuum degree; some products are liquid-carrying, and when the package is evacuated and sealed, the liquid in the product is easily squeezed out and flows freely in the package due to the reduced volume in the package. The patent number CN115196082A discloses a domestic vacuum sealing machine capable of extracting liquid, which comprises an upper cover, a lower seat and a vacuumizing device, wherein the front side of the upper part of the lower seat is provided with a lower table top which is obliquely arranged and is low in front and high in back, the front side of the bottom of the upper cover is provided with an upper table top, the upper table top and/or the lower table top are provided with an annular sealing ring, a vacuumizing water-blocking air chamber is formed by the space formed by the upper table top, the lower table top and the annular sealing ring, the vacuumizing device is connected with the vacuumizing water-blocking air chamber, and a heat sealing device, a water storage tank and a front low and back high guiding water-blocking inclined part which is obliquely arranged are arranged in the vacuumizing water-blocking air chamber. Although this vacuum sealing machine can prevent that water from getting into the evacuation and blocking in the aqueous vapor chamber to make water remain back in the wrapping bag, nevertheless because the liquid in the wrapping bag is mobile, when vacuum sealing machine seals the wrapping bag, because water can flow to the sack department and absorb heat, lead to the unable rising of sealing temperature of wrapping bag, cause the problem that the wrapping bag sealed poorly.
The patent number CN204507363U discloses a vacuum sealing machine controlling means, including the movable support, set up the heating element in movable support below, still including setting up the pivot in the movable support below, install the first pivot support in pivot one end, install the second pivot support at the pivot other end, install the first clasp of movable support one end, install the second clasp at the movable support other end, first pivot support is equipped with the first position of detaining that is used for with first clasp looks lock, second pivot support is equipped with the second position of detaining that is used for with second clasp looks lock, the drive arrangement who is used for driving pivot pivoted is installed to the tip of first pivot support or second pivot support, the movable support below still is equipped with vacuum breaking device and the power control device who is connected with the drive arrangement transmission. Although the vacuum sealing machine is provided with the vacuum breaking device, the vacuum in the vacuum sealing machine is broken, so that the cover of the sealing machine can be opened conveniently; however, when the vacuum sealing machine is used for packaging a product containing liquid, water in the packaging bag still flows to the bag opening to absorb heat, so that the sealing temperature of the packaging bag cannot be increased, and the problem of poor sealing of the packaging bag is caused. Thus, the drawbacks are quite apparent and there is a need to provide a solution.
In the prior art, there is no technical instruction about how to seal a vacuum packaging bag containing a liquid effectively, so that a related implementation scheme is needed to solve the related technical problems.
Disclosure of Invention
The application aims to provide a wet vacuum sealing method, which solves the problems that when the existing vacuum sealing machine is used for packaging products containing liquid, water in a packaging bag flows to a bag opening to absorb heat, so that the sealing temperature of the packaging bag cannot be increased, and the sealing of the packaging bag is poor.
In order to achieve the technical purpose, the application provides a method for wet vacuum sealing, which comprises the following steps:
step S1: acquiring basic data of a vacuum packaging bag to be packaged currently;
step S2: based on the obtained basic data of the vacuum packaging bag, giving various operation parameter data for vacuum sealing of the current vacuum packaging bag by a management background, wherein the various operation parameter data of the vacuum sealing comprise vacuum degree data, air suction time data, heating data and interference sealing monitoring data, and the interference sealing monitoring data comprise a safe sealing distance from the liquid level in the packaging bag to the packaging bag sealing, wherein the safe sealing distance is used for preventing the liquid level in the packaging bag from being too close to the packaging bag sealing and affecting normal sealing;
Step S3: the controller acquires data of various operation parameters of the vacuum seal, and controls various execution components of the vacuum packaging machine to execute vacuum seal operation, wherein the vacuum seal operation specifically comprises the following concrete substeps:
s31, placing the vacuum packaging bag at the working end of a vacuum packaging machine;
s32, capturing real-time image information of the vacuum packaging bag by using an image capturing device, synchronously generating a monitoring image aiming at the current vacuum packaging bag based on interference seal monitoring data given by a management background, and displaying a real-time image on an image display end, wherein the monitoring image is displayed with the interference seal monitoring data information;
s33, starting the vacuum packaging machine, executing vacuumizing operation on the vacuum packaging bag according to a first preset air extraction rate based on various operation parameter data given by a management background, monitoring the vacuum degree in the vacuum packaging bag in real time, monitoring the distance between the liquid level in the vacuum packaging bag and the seal, and monitoring and judging whether the distance between the liquid level and the seal of the vacuum packaging bag reaches a first safety seal distance; s34, if the distance between the liquid level in the vacuum packaging bag and the seal is detected to reach the first safety seal distance, heating the packaging bag by the vacuum packaging machine, and heating at a first heating rate;
If the distance between the liquid level in the vacuum packaging bag and the seal is monitored to reach the first safety seal distance, and the vacuum degree in the vacuum packaging bag does not reach the first preset vacuum degree, the air pumping speed of the vacuum tube packaging machine is increased, and the vacuumizing operation for the vacuum packaging bag is executed at the second preset air pumping speed;
when the vacuum degree in the vacuum packaging bag is monitored to reach a first preset vacuum degree, the vacuum packaging machine performs vacuumizing and decelerating at a first acceleration speed so as to reduce the pumping speed of the vacuum machine, and the vacuum packaging machine is subjected to pressure relief so as to reduce the vacuum degree of the vacuum packaging machine;
s35, synchronously monitoring whether the distance between the liquid level in the vacuum packaging bag and the seal reaches a second safety seal distance in real time; if the distance between the liquid level in the vacuum packaging bag and the seal is detected to reach the second safety seal distance, executing step S36;
s36, when the distance between the liquid level in the vacuum packaging bag and the seal reaches the second safety seal distance, the vacuum packaging machine continuously heats the packaging bag, synchronously and in real time monitors whether the distance between the liquid level in the vacuum packaging bag and the seal reaches the critical safety seal distance, and when the distance between the liquid level in the vacuum packaging bag and the seal reaches the critical safety seal distance, the step S4 is executed;
S4, completely sealing the vacuum packaging bag by the vacuum packaging machine;
the vacuum packaging machine stops heating and the sealing of the vacuum packaging bag containing the liquid is completed.
Further, in step S1, basic data of the vacuum packaging bag to be packaged is obtained, wherein the basic data includes packaging bag size data, packaging bag volume and memory liquid volume.
Further, in step S2, based on the obtained basic data of the vacuum packaging bag, the management background gives out various operation parameter data for vacuum sealing of the vacuum packaging bag with the current specification, wherein the various operation parameter data of the vacuum sealing comprises vacuum degree data, air extraction rate data, heating data and interference sealing monitoring data;
the vacuum degree data comprise negative pressure value data of vacuumizing of the needle vacuum packaging machine and first preset vacuum degree data;
the air extraction rate data comprises a first preset air extraction rate and a second preset air extraction rate;
the heating data comprises a heating temperature threshold value and a heating temperature rising rate for the packaging machine to heat the packaging bag;
the interference seal monitoring data comprises a first safety seal distance, a first safety seal distance and a critical safety seal distance.
Further, in step S32, the image capturing device captures real-time image information of the vacuum packaging bag, and synchronously generates a monitoring image for the current vacuum packaging bag based on the interference seal monitoring data given by the management background, and displays a real-time image on the image display end, where the monitoring image displays the interference seal monitoring data information, and specifically includes: based on the acquired size data of the vacuum packaging bag and the real-time shooting and taking of the size data of the packaging bag picture, the management background performs conversion according to the size proportion, and real-time marks and displays the information of the interference seal monitoring data on the currently shot packaging bag, including displaying a first safety seal distance warning line, a first safety seal distance warning line and a critical safety seal distance warning line.
Further, in step S34, the heating of the vacuum packaging machine is intermittent heating, the heating time period is 0-20S each time, and the time interval of each heating of the vacuum packaging machine is 0-20S each time.
Further, the vacuum packaging machine is vacuumized to obtain negative pressure value data, wherein the preset negative pressure value K is 0.1-100 KPa, and when the negative pressure value of the packaging bag is K, the liquid in the packaging bag stops moving or slows down. The invention also provides a wet vacuum sealing control system for performing the method of wet vacuum sealing of the invention, the system comprising:
The basic data acquisition module is used for acquiring basic data of the vacuum packaging bag to be packaged currently;
the experience data storage module is used for storing various optimal historical operation parameter data for vacuum sealing of vacuum packaging bags with different sizes and different volumes, so that the management background can conveniently set or adjust the operation parameter data of the vacuum packaging bag to be sealed currently based on the experience data;
the management background is used for calculating various operation parameter data of the vacuum sealing and sending control quality to the control module, various operation parameter data of the vacuum sealing for the current vacuum packaging bag is given based on a preset vacuum sealing algorithm, the various operation parameter data of the vacuum sealing comprise vacuum degree data, air extraction time data, heating data and interference sealing monitoring data, wherein the interference sealing monitoring data comprise a safe sealing distance from the liquid level in the packaging bag to the packaging bag sealing, which influences normal sealing, in order to avoid the liquid level in the packaging bag from being too close to the packaging bag sealing;
the monitoring display and early warning module is used for shooting and monitoring the liquid level in the vacuum packaging bag to be sealed in real time, calibrating and displaying interference seal monitoring data information on the current shot packaging bag image in real time according to the data converted by the management background according to the size proportion, and comprises the steps of displaying a first safety seal distance warning line, a first safety seal distance warning line and a critical safety seal distance warning line; meanwhile, when the liquid level is monitored to reach a corresponding safety sealing distance guard line, a first safety sealing distance guard line or a critical safety sealing distance guard line, an early warning prompt is sent out;
And the control module is used for executing various vacuum sealing operations for the packaging bags according to the control instructions sent by the management background.
Further, the management background comprises a data receiving and transmitting unit, a calculating unit, a judging unit and an instruction transmitting unit;
the data receiving and transmitting unit is used for collecting and retrieving data of other modules or sending the data calculated by the calculating unit to the other modules;
the calculation module is used for combining the data sent by the data unit and calculating various operation parameter data of the vacuum sealing, and particularly giving out various operation parameter data of vacuum sealing for the current vacuum packaging bag based on a preset vacuum sealing algorithm;
the judging unit is used for receiving the monitoring data sent by the monitoring display and early warning module, judging whether the related liquid level reaches the safety sealing distance according to a preset early warning rule, and sending the judging result to the background terminal;
the instruction sending unit is used for sending a corresponding control instruction to the control module or the early warning unit of the monitoring display and early warning module;
the monitoring display and early warning module comprises a monitoring unit and an early warning unit,
the monitoring and displaying unit is used for shooting and monitoring the liquid level in the vacuum packaging bag to be sealed in real time, calibrating and displaying interference sealing monitoring data information on the current shot packaging bag image in real time according to the data converted by the management background according to the size proportion, and displaying a first safety sealing distance warning line, a first safety sealing distance warning line and a critical safety sealing distance warning line;
And the early warning unit is used for sending out early warning prompt when the liquid level is detected to reach a corresponding safety sealing distance guard line, a first safety sealing distance guard line or a critical safety sealing distance guard line.
The invention also provides a vacuum packaging machine which comprises a shell, a sealing assembly, a control assembly, a vacuum generating assembly and a vacuum adjusting assembly;
the sealing assembly is arranged on one side of the shell and is used for vacuumizing and sealing the packaging bag;
the vacuum generating assembly is arranged on the shell and connected with the sealing assembly, and is used for providing a pressing force for the sealing assembly;
the vacuum adjusting component is arranged on the shell and connected with the vacuum generating component and used for adjusting the negative pressure value of the vacuum generating component;
the control assembly is arranged on the shell and comprises a control main board, the control main board comprises an execution program for executing the wet vacuum sealing method, and the control assembly is electrically connected with the vacuum adjusting assembly, the vacuum generating assembly and the sealing assembly respectively.
Further, the vacuum adjusting assembly comprises a solenoid valve; the vacuum generating assembly is communicated with the electromagnetic valve;
The sealing assembly comprises a heating strip, a first pressing strip and a second pressing strip; the first pressing strip is movably arranged on the shell; the first pressing strip can move relative to the second pressing strip; the heating strip is fixedly arranged on the first pressing strip or the second pressing strip and is positioned between the first pressing strip and the second pressing strip.
Compared with the prior art, the application has the beneficial effects that:
1. the scheme creatively provides a concept of adopting refined control for the vacuum packaging bag, and by acquiring various data of the vacuum bag and the internal memory liquid in the early stage, carrying out calculation of vacuum degree data, air extraction time data and heating data and interference seal monitoring data based on experience or a preset algorithm or directly giving related data by an operator based on experience reference data and the like, so as to accurately monitor and control the whole seal operation, furthest solve the technical problem that the liquid level in the packaging bag often reaches the seal position and influences the packaging because the vacuum degree of the vacuum tube packaging machine is not effectively controlled in the prior art, and avoid the liquid flowing out along the mouth of the packaging bag;
2. according to the scheme, three-level supervision and control are performed, seal early warning and seal heating time control and seal actual control can be performed in time by monitoring the safety distance of the air port, so that the accuracy of seal operation is improved, and the seal reject ratio is reduced;
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic flow chart of the wet vacuum sealing method in embodiment 1 of the present application;
FIG. 2 is a flowchart showing the steps of the vacuum sealing operation according to embodiment 1 of the present application, including the following steps;
FIG. 3 is a diagram showing the logical relationship between the components of the control system for a wet vacuum seal according to example 2 of the present application;
FIG. 4 is a diagram showing the relationship between units included in the management background of embodiment 2 of the present application;
FIG. 5 is a schematic diagram of the connection of a vacuum packaging machine of cylinder embodiment 9;
fig. 6 is a schematic perspective view of a vacuum packaging machine according to embodiment 9 of the present application;
fig. 7 is a schematic perspective view of a vacuum packaging machine according to embodiment 9 of the present application;
FIG. 8 is a schematic diagram of the operation of the wet vacuum sealing method of example 4.
Wherein: 1. a housing; 2. a seal assembly; 3. a filter cup; 11. a notch; 12. pit; 13. a display panel; 14. a convenience key; 15. a top cover; 16. a signal connector; 17. a power interface; 18. an exhaust port; 21. a suction nozzle; 22. a heating strip; A. the magnitude of the vacuumizing pressure; B. a heating state; C. a pressure relief state; D. packaging bag vacuum degree curve; E. vacuum degree curve of vacuum packing machine; K. the negative pressure value K is preset.
Detailed Description
Various embodiments of the application are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the application. That is, in some embodiments of the application, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
It should be noted that all directional indications such as up, down, left, right, front, and rear … … in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture such as that shown in the drawings, and if the particular posture is changed, the directional indication is changed accordingly.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the application solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
With specific reference to FIGS. 1-2, the embodiment 1 of the present application provides a method for wet vacuum sealing, comprising the steps of:
step S1: basic data of the vacuum packaging bag to be packaged at present are acquired, wherein the basic data comprise, but are not limited to, the size, the material quality, the type and the volume of liquid in the packaging bag, and the basic data are acquired to prepare for the follow-up calculation and output of vacuumizing operation data suitable for the current packaging bag.
Step S2: based on the obtained basic data of the vacuum packaging bag, the management background comprehensively gives out various operation parameter data of vacuum sealing for the current vacuum packaging bag based on historical experience data and/or estimated data suitable for the current packaging bag sealing operation to be processed given by a reference calculation unit, wherein the various operation parameter data of the vacuum sealing comprises vacuum degree data, air extraction time data, heating data and interference sealing monitoring data, the interference sealing monitoring data comprises a safety sealing distance from the liquid level in the packaging bag to the packaging bag sealing, which influences normal sealing, in order to avoid the fact that the liquid level in the packaging bag is too close to the packaging bag sealing, the liquid level in the packaging bag is used as a calculation starting point according to the nearest liquid level of the local sealing, and the position of sealing is used as a calculation distance key point to calculate the safety sealing distance.
Step S3: the controller acquires data of various operation parameters of the vacuum seal, and controls various execution components of the vacuum packaging machine to execute vacuum seal operation, wherein the vacuum seal operation specifically comprises the following concrete substeps:
s31, placing the vacuum packaging bag at the working end of the vacuum packaging machine, wherein the vacuum packaging bag comprises a vacuumized vacuum suction nozzle and a vacuumized vacuum degree detection nozzle which extend into the packaging bag and are used for vacuumizing the vacuum packaging bag and monitoring the vacuum degree in the packaging bag in real time. The vacuum degree detection mechanism adopts the existing general technology and equipment, is not in the scope of the invention point created by the invention, and is not described herein again;
S32, capturing real-time image information of the vacuum packaging bag by using an image capturing device, synchronously generating a monitoring image aiming at the current vacuum packaging bag based on interference seal monitoring data given by a management background, and displaying a real-time image on an image display end, wherein the monitoring image is displayed with the interference seal monitoring data information; in particular. The vacuum packaging bag to be processed is captured in real time through the camera equipment, image processing is carried out through image processing software of a management background, the warning line of the safety sealing distance is displayed on the packaging bag image captured in real time based on the interference sealing monitoring data, and along with the change of a picture, the warning line of the safety sealing distance is timely adjusted based on the proportion of the packaging bag, so that the warning line is accurately displayed, preparation can be accurately judged in the follow-up vacuumizing process, the safety sealing distance comprises a first safety sealing distance, a second safety sealing distance and a critical safety sealing distance, and the rhythm of vacuumizing and sealing operation is conveniently controlled by setting the gradient safety sealing distance.
S33, starting the vacuum packaging machine, performing vacuumizing operation on the vacuum packaging bag according to a first preset air extraction rate based on various operation parameter data given by a management background, monitoring the vacuum degree in the vacuum packaging bag and the distance between the liquid level in the vacuum packaging bag and the seal, monitoring and judging whether the distance between the liquid level and the seal of the vacuum packaging bag reaches a first safety seal distance or not, wherein the first safety seal distance is used as an operation node for preheating the seal or not;
S34, if the distance between the liquid level in the vacuum packaging bag and the seal is detected to reach the first safety seal distance, heating the packaging bag by the vacuum packaging machine, and heating at a first heating rate;
if the distance between the liquid level in the vacuum packaging bag and the seal is monitored to reach the first safety seal distance, and then the vacuum degree in the vacuum packaging bag does not reach the first preset vacuum degree, the air suction rate of the vacuum tube packaging machine is increased, the vacuumizing operation for the vacuum packaging bag is executed at the second preset air suction rate, the first preset vacuum degree generally adopts a standard qualified vacuum degree value for the packaging bag, and when the vacuum degree in the packaging bag reaches the first preset vacuum degree, the current vacuum degree of the packaging bag is indicated to meet the seal requirement;
when the vacuum degree in the vacuum packaging bag is monitored to reach the first preset vacuum degree, the vacuum packaging machine performs vacuumizing and decelerating at a first acceleration speed so as to reduce the pumping speed of the vacuum machine, and the vacuum packaging machine is enabled to release pressure so as to reduce the vacuum degree of the vacuum packaging machine, and further slow down the rising speed of liquid in the bag.
S35, synchronously monitoring whether the distance between the liquid level in the vacuum packaging bag and the seal reaches a second safety seal distance in real time, wherein the second safety seal distance is set to remind of immediately preparing for seal, so that a transition effect is achieved; if the distance between the liquid level in the vacuum packaging bag and the seal is detected to reach the second safety seal distance, executing step S36;
S36, when the distance between the liquid level in the vacuum packaging bag and the seal reaches the second safety seal distance, the vacuum packaging machine continuously heats the packaging bag, synchronously and in real time monitors whether the distance between the liquid level in the vacuum packaging bag and the seal reaches the critical safety seal distance, and when the distance between the liquid level in the vacuum packaging bag and the seal reaches the critical safety seal distance, the step S4 is executed by the vertical horse once the critical safety distance is reached;
s4, completely sealing the vacuum packaging bag by the vacuum packaging machine;
the vacuum packaging machine stops heating and the sealing of the vacuum packaging bag containing the liquid is completed.
In a preferred embodiment, in step S1, basic data of a vacuum packaging bag to be currently packaged is obtained, wherein the basic data includes packaging bag size data, packaging bag volume, memory liquid volume data, qualified vacuum degree data of a packaging bag of the type, and the like.
In the preferred embodiment, in step S2, based on the obtained basic data of the vacuum packaging bag, the management background gives out various operation parameter data for vacuum sealing of the vacuum packaging bag with the current specification, wherein the various operation parameter data of the vacuum sealing comprises vacuum degree data, air extraction rate data, heating data and interference sealing monitoring data;
The vacuum degree data comprises negative pressure value data of vacuumizing of the needle vacuum packaging machine and first preset vacuum degree data, and the first preset vacuum degree data can directly adopt qualified vacuum degree data aiming at the packaging bag of the type or vacuum degree data 1% -15% higher than the qualified vacuum degree as a selectable numerical range;
the air extraction rate data comprises a first preset air extraction rate and a second preset air extraction rate, wherein the second preset air extraction rate is higher than the first preset air extraction rate, and the second preset hand air rate can ensure that the vacuum degree of the vacuum bag reaches the first preset vacuum degree before the critical sealing safety distance warning line is also not reached;
the heating data comprises a heating temperature threshold value and a heating temperature rising rate of the packaging machine for heating the packaging bag, wherein the heating temperature threshold value is the best upper limit of the heating temperature, and once the heating temperature reaches the upper limit in advance before sealing, the heating is required to be stopped;
the interference seal monitoring data comprises a first safety seal distance, a first safety seal distance and a critical safety seal distance.
In a preferred embodiment, in step S32, the image capturing device captures real-time image information of the vacuum packaging bag, and synchronously generates a monitoring image for the current vacuum packaging bag based on the interference seal monitoring data given by the management background and displays the monitoring image on the image display end in real time, where the monitoring image displays the interference seal monitoring data information, and specifically includes: based on the acquired size data of the vacuum packaging bag and the real-time shooting and taking of the size data of the packaging bag picture, the management background performs conversion according to the size proportion, and real-time marks and displays the information of the interference seal monitoring data on the currently shot packaging bag, including displaying a first safety seal distance warning line, a first safety seal distance warning line and a critical safety seal distance warning line.
In a preferred embodiment, in step S34, the heating of the vacuum packaging machine is intermittent heating, each heating time is 0-20S, and each heating time of the vacuum packaging machine is 0-20S.
In a preferred embodiment, the vacuum packaging machine is configured to vacuum the negative pressure data, wherein the preset negative pressure K is 0.1-100 KPa, and when the negative pressure K of the packaging bag is K, the liquid in the packaging bag stops moving or slows down.
The technical problems that the liquid level often reaches the sealing position to affect the packaging due to the fact that the vacuum degree of a vacuum tube packaging machine is not effectively controlled in the prior art are solved to the maximum extent, and the liquid in the packaging bag flows out along the mouth of the packaging bag are avoided; according to the scheme provided by the invention, three-level supervision and control are performed, the sealing early warning and the timing control and the sealing actual control of sealing heating can be performed in time by monitoring the safety distance of the air port, the accuracy of the sealing operation is improved, and the sealing reject ratio is reduced.
Example 2: referring specifically to fig. 3-4, the present invention also provides a wet vacuum sealing control system for performing the method of wet vacuum sealing of the present invention, the system comprising:
the basic data acquisition module is used for acquiring basic data of the vacuum packaging bag to be packaged currently, and during actual operation, staff can input manual parameters through a background;
the experience data storage module is used for storing various optimal historical operation parameter data for vacuum sealing of vacuum packaging bags of different sizes and different volumes of liquid, is convenient for a management background to set or adjust the operation parameter data of the vacuum packaging bag to be sealed currently based on the experience data, and acts as a historical data experience value database for a system or staff to conduct real-time data review and adjustment so as to help the operator to make the most reasonable sealing operation parameter data in time;
the management background is used for calculating various operation parameter data of the vacuum sealing and sending control quality to the control module, various operation parameter data of the vacuum sealing for the current vacuum packaging bag is given based on a preset vacuum sealing algorithm, the various operation parameter data of the vacuum sealing comprise vacuum degree data, air extraction time data, heating data and interference sealing monitoring data, wherein the interference sealing monitoring data comprise a safe sealing distance from the liquid level in the packaging bag to the packaging bag sealing, which influences normal sealing, in order to avoid the liquid level in the packaging bag from being too close to the packaging bag sealing; the management background is the control center, and completes the data receiving and transmitting, judging, instruction transmitting and data calculating of the system.
The monitoring display and early warning module is used for shooting and monitoring the liquid level in the vacuum packaging bag to be sealed in real time, calibrating and displaying interference seal monitoring data information on the current shot packaging bag image in real time according to the data converted by the management background according to the size proportion, and comprises the steps of displaying a first safety seal distance warning line, a first safety seal distance warning line and a critical safety seal distance warning line; meanwhile, when the liquid level is monitored to reach a corresponding safety sealing distance guard line, a first safety sealing distance guard line or a critical safety sealing distance guard line, an early warning prompt is sent out;
and the control module is used for executing various vacuum sealing operations for the packaging bags according to the control instructions sent by the management background.
The management background comprises a data receiving and transmitting unit, a calculating unit, a judging unit and an instruction transmitting unit;
the data receiving and transmitting unit is used for collecting and retrieving data of other modules or sending the data calculated by the calculating unit to the other modules;
the calculation module is used for combining the data sent by the data unit and calculating various operation parameter data of the vacuum sealing, and particularly giving out various operation parameter data of vacuum sealing for the current vacuum packaging bag based on a preset vacuum sealing algorithm;
The judging unit is used for receiving the monitoring data sent by the monitoring display and early warning module, judging whether the related liquid level reaches the safety sealing distance according to a preset early warning rule, and sending the judging result to the background terminal;
the instruction sending unit is used for sending a corresponding control instruction to the control module or the early warning unit of the monitoring display and early warning module;
the monitoring display and early warning module comprises a monitoring unit and an early warning unit,
the monitoring and displaying unit is used for shooting and monitoring the liquid level in the vacuum packaging bag to be sealed in real time, calibrating and displaying interference sealing monitoring data information on the current shot packaging bag image in real time according to the data converted by the management background according to the size proportion, and displaying a first safety sealing distance warning line, a first safety sealing distance warning line and a critical safety sealing distance warning line;
and the early warning unit is used for sending out early warning prompt when the liquid level is detected to reach a corresponding safety sealing distance guard line, a first safety sealing distance guard line or a critical safety sealing distance guard line.
Example 3: the invention also provides a vacuum packaging machine which comprises a shell, a sealing assembly, a control assembly, a vacuum generating assembly and a vacuum adjusting assembly;
The sealing assembly is arranged on one side of the shell and is used for vacuumizing and sealing the packaging bag;
the vacuum generating assembly is arranged on the shell and connected with the sealing assembly, and is used for providing a pressing force for the sealing assembly;
the vacuum adjusting component is arranged on the shell and connected with the vacuum generating component and used for adjusting the negative pressure value of the vacuum generating component;
the control assembly is arranged on the shell and comprises a control main board, the control main board comprises an execution program for executing the wet vacuum sealing method, and the control assembly is electrically connected with the vacuum adjusting assembly, the vacuum generating assembly and the sealing assembly respectively.
In a preferred embodiment, the vacuum adjustment assembly comprises a solenoid valve; the vacuum generating assembly is communicated with the electromagnetic valve;
the sealing assembly comprises a heating strip, a first pressing strip and a second pressing strip; the first pressing strip is movably arranged on the shell; the first pressing strip can move relative to the second pressing strip; the heating strip is fixedly arranged on the first pressing strip or the second pressing strip and is positioned between the first pressing strip and the second pressing strip.
Example 4: fig. 8 is a schematic diagram illustrating the operation of the method for wet vacuum sealing according to another embodiment of the present invention. The method for wet vacuum sealing comprises the following steps of:
step S1: placing the vacuum packaging bag at the working end of the vacuum packaging machine, and enabling an air suction nozzle of the vacuum packaging machine to extend into the packaging bag;
step S2: starting the vacuum packaging machine to vacuumize the packaging bag;
step S3: after the vacuum packaging machine vacuumizes the packaging bag for 0-30S, releasing the pressure of the vacuum packaging machine so as to reduce the vacuum degree of the vacuum packaging machine;
step S4: when the negative pressure value of the vacuum packaging machine is reduced and the vacuum degree in the packaging bag is the preset negative pressure value K, the vacuum packaging machine completely seals the packaging bag;
step S5: after the packaging bag is completely sealed, the vacuum packaging machine continuously releases pressure until the negative pressure value is zero;
step S6: the vacuum packing machine stops heating.
It should be noted that, the vacuum packaging machine should set related parameter values in advance corresponding to the capacity of the packaging bag, in one embodiment, when the packaging bag with the capacity of 500ML is put into the vacuum packaging machine, the air suction nozzle of the vacuum packaging machine is made to vacuumize the packaging bag; firstly, after the vacuum packaging machine vacuumizes the packaging bag for 10S, the vacuum packaging machine is relieved to reduce the vacuum degree of the vacuum packaging machine, so that the efficiency of the vacuum packaging machine in vacuumizing the packaging bag is reduced; simultaneously, the vacuum packaging machine heats the packaging bag; then, when the negative pressure value of the vacuum packaging machine and the vacuum degree of the packaging bag are both 0.2KPa, the packaging bag is heated and sealed by the vacuum packaging machine; then, in order to prevent the air flow impact of the external air pressure on the packaging bag which is just sealed, the mouth of the packaging bag is re-opened, the vacuum packaging machine is enabled to continuously heat the packaging bag, and simultaneously the vacuum packaging machine is enabled to continuously pump air from the mouth of the packaging bag until the negative pressure value of the vacuum packaging machine is relieved to 0; and finally, closing the vacuum packaging machine to stop heating and vacuumizing.
Example 5: the heating of the vacuum packaging machine is intermittent heating, preferably, the heating time of each vacuum packaging machine is 3S, the time interval of each heating of the vacuum packaging machine is 1S, and the intermittent heating is carried out on the vacuum packaging machine so as to prevent the risk of breakage of the packaging bag due to overhigh heating; meanwhile, the vacuum packaging machine pauses the heating period, so that the liquid in the packaging bag absorbs heat to the packaging bag, and the temperature of the liquid near the sealing position of the packaging bag is improved in a reciprocating manner, so that the risk of insufficient sealing of the packaging bag due to the fact that the liquid absorbs heat to the packaging bag in the final sealing process of the packaging bag is avoided.
Example 6: when the vacuum packaging machine is used for pressure relief, the vacuum packaging machine is enabled to adopt intermittent pressure relief, preferably, the time length of each pressure relief of the vacuum packaging machine is 1S, the interval of each pressure relief is 1S, and the intermittent pressure relief of the vacuum packaging machine is adopted to enable the vacuum degree of the vacuum packaging machine to be gradually reduced to 0, so that fluctuation generated when the vacuum packaging machine vacuumizes a packaging bag is avoided, and fluctuation of the liquid level in the packaging bag and even fluctuation of the liquid in the packaging bag caused by fluctuation of the volume change of the packaging bag are effectively avoided, and the liquid in the packaging bag flows out of the mouth of the packaging bag; the vacuum packaging machine is beneficial to improving the packaging stability of the vacuum packaging machine, and it can be understood that when the pressure relief mode is adopted, the pressure relief speed of the vacuum pump is kept constant, and the pressure relief exhaust capacity of the vacuum packaging machine is larger than the exhaust capacity of the vacuum packaging machine, so that the effect of gradually reducing the vacuum degree of the vacuum packaging machine is realized.
Example 7: when the vacuum packaging machine is used for pressure relief, the vacuum packaging machine is enabled to adopt the pressure relief speed for pressure relief in an incremental mode, preferably, the vacuum packaging machine is enabled to carry out pressure relief in an incremental mode at the acceleration rate of 0.02KPa/S, the pressure relief speed of the vacuum packaging machine is 0.02KPa/S in 1S, the pressure relief speed of the vacuum packaging machine is 0.04KPa/S in 2S, the pressure relief speed of the vacuum packaging machine is enabled to be gradually increased, the effect that the vacuum degree of the vacuum packaging machine is gradually reduced can be achieved, fluctuation generated when the vacuum packaging machine vacuumizes a packaging bag is avoided, and fluctuation of the liquid level in the packaging bag caused by fluctuation of the volume change of the packaging bag is effectively avoided, and even liquid in the packaging bag flows out of the mouth of the packaging bag; is beneficial to improving the packaging stability of the vacuum packaging machine.
Example 8: when the vacuum degree in the packaging bag is 0.3KPa and the vacuum value of the vacuum packaging machine is reduced to 0.3KPa, the air suction pressure of the vacuum packaging machine is equal to the pressure in the packaging bag, and the vacuum packaging machine does not suck air to the packaging bag at the moment, so that the volume of the packaging bag cannot change, and the liquid in the packaging bag is in a static state, thereby being convenient for the vacuum packaging machine to completely seal the packaging bag and being beneficial to improving the sealing effect of the vacuum packaging machine; it should be noted that when the liquid in the packaging bag is still, the liquid cannot flow to take away the heat on the packaging bag, so that the stability of the heating sealing of the packaging bag is improved.
Example 9: the scheme also provides a vacuum packaging machine suitable for the liquid product, as shown in fig. 5-7, comprising a shell 1, a sealing assembly 2, a control assembly, a vacuum generating assembly and a vacuum adjusting assembly; the sealing assembly 2 is arranged on one side of the shell 1 and is used for vacuumizing and sealing the packaging bag; the vacuum generating assembly is arranged on the shell 1 and is connected with the sealing assembly 2 for providing negative pressure for the sealing assembly 2; the vacuum adjusting component is arranged on the shell 1 and is connected with the vacuum generating component for adjusting the negative pressure value of the vacuum generating component; the control assembly is arranged on the shell 1 and is electrically connected with the vacuum adjusting assembly, the vacuum generating assembly and the sealing assembly 2 respectively.
Specifically, when the packaging bag is placed in the vacuum packaging machine for packaging, the control assembly controls the vacuum generating assembly to provide negative pressure for the sealing assembly 2 so that the sealing assembly 2 can vacuumize and seal the packaging bag, and then the functions of automatically vacuumizing and sealing the packaging bag by the vacuum packaging machine are realized; when the product in the packaging bag contains liquid, the volume in the packaging bag is reduced in the process of vacuumizing the packaging bag, the liquid flows out of the product, and the atmospheric pressure can generate pressure on the packaging bag and squeeze the liquid in the packaging bag to the bag opening along with the continuous reduction of the pressure in the packaging bag; after the control assembly controls the vacuum generating assembly to work for a certain time according to the capacity of the inner space of the packaging bag, the control assembly controls the vacuum adjusting assembly to work, so that the vacuum adjusting assembly carries out vacuum adjustment on the vacuum generating assembly, the vacuumizing effect of the vacuum generating assembly on the packaging bag is reduced, the pressure in the packaging bag is kept consistent with the external pressure, the pressure of the packaging bag is prevented from being generated by the atmospheric pressure, and the liquid in the packaging bag is prevented from flowing to the bag mouth of the packaging bag, so that the sealing assembly 2 can heat and seal the packaging bag conveniently; because when the vacuum generating assembly completely withdraws the vacuumizing effect on the packaging bag, the outside air is easy to flow back into the packaging bag, so that the packaging bag is continuously vacuumized through the vacuum generating assembly, the air is prevented from flowing back into the packaging bag, the packaging bag cannot be vacuumized, and the functions of vacuumizing and sealing the packaging bag containing liquid products are achieved smoothly by the vacuum packaging machine.
It can be understood that, assuming that after the packaging bag is vacuumized for 10S, the liquid in the packaging bag flows to the bag mouth, when the control component controls the vacuum generating component to work for 10S, the control component controls the vacuum adjusting component to conduct vacuum breaking on the vacuum generating component, so that the pressure in the packaging bag is consistent with the external pressure, namely, when the vacuum generating component adopts two different vacuum values to vacuumize the packaging bag, and the vacuumizing degree of the vacuum generating component is a first true value, the vacuumizing time of the packaging bag does not exceed the preset time, so that the effects of vacuumizing the packaging bag and preventing the atmospheric pressure from generating pressure on the packaging bag can be achieved, and the liquid in the packaging bag is prevented from flowing to the bag mouth of the packaging bag; and then the vacuum adjusting assembly is used for carrying out vacuum adjustment on the vacuum generating assembly, so that the vacuum generating assembly is used for vacuumizing the packaging bag by a second vacuum value with the vacuumizing degree smaller than the first truth value, and further, air is effectively prevented from flowing back into the packaging bag, and the sealing assembly 2 is used for heating and sealing the packaging bag conveniently.
In this embodiment, the vacuum adjustment assembly comprises a solenoid valve; the air extraction end of the vacuum generating component is communicated with the electromagnetic valve; the vacuum adjusting component adopts an easily obtained electromagnetic valve, and the vacuum generating component adopts an easily obtained vacuum pump, so that the production cost of the vacuum packaging machine is reduced, one end of the electromagnetic valve is communicated with the air extraction end of the vacuum pump, the vacuum pump is used for vacuumizing the packaging bag in a specified time, after the air in the packaging bag is reduced, the electromagnetic valve is controlled to be opened by the control component, so that the air extraction end of the vacuum pump is communicated with the outside, the air can be prevented from entering the packaging bag, the pressure in the packaging bag is kept consistent with the external pressure, and the effect of heating and sealing the packaging bag by the sealing component 2 is achieved conveniently; it can be understood that the control component is made to adjust the opening of the electromagnetic valve according to the power of the vacuum pump, so as to adjust the pressure in the packaging bag, thereby ensuring that the pressure in the packaging bag is consistent with the external pressure.
In this embodiment, the sealing assembly 2 includes a heat-generating strip 22, a first bead, and a second bead; the first pressing strip is movably arranged on the shell 1; the first pressing strip can move relative to the second pressing strip; the heating strip 22 is fixedly arranged on the first pressing strip or the second pressing strip and is positioned between the first pressing strip and the second pressing strip; the closure assembly 2 further includes a suction nozzle 21; the working end of the suction nozzle 21 is disposed outwardly of the housing 1 and between the second bead and the first bead. Preferably, a notch 11 for placing the packaging bag is formed on the shell 1, the first pressing strip is movably arranged at the top of the notch 11, and the heating strip 22 is arranged on the second pressing strip and is fixedly arranged at the bottom of the notch 11 along with the second pressing strip; when the packaging bag needs to be sealed; when the packaging bag needs to be sealed, the bag opening of the packaging bag is placed in the notch 11, the working end of the suction nozzle 21 is inserted into the packaging bag along the bag opening, the control assembly is used for controlling the vacuum generating assembly to vacuumize the packaging bag through the suction nozzle 21, and then the control assembly is used for controlling the first pressing strip to press downwards towards the second pressing strip so as to press the bag opening of the packaging bag, and meanwhile the heating strip 22 between the first pressing strip and the second pressing strip is used for fully heating and sealing the packaging bag, so that the functions of vacuumizing and heating and sealing of the vacuum packaging machine are realized.
In this embodiment, further comprising a filter bowl 3, said suction nozzle 21 being in communication with said vacuum generating assembly via filter bowl 3; the suction nozzle 21 is communicated with the vacuum generating assembly through the filter cup 3, so that the filter cup 3 can separate the air and the water pumped by the vacuum generating assembly, thereby avoiding the problem of damage to the vacuum generating assembly and being beneficial to prolonging the service life of the vacuum packaging machine. In this embodiment, a pit 12 is formed at the edge of the top of the casing 1, and the pit 12 is used for accommodating the filter cup 3; the filter cup 3 is smoothly installed on the casing 1 through the concave pit 12, and the beauty of the vacuum packaging machine is improved.
In this embodiment, the first pressure detecting assembly and the second pressure detecting assembly are further included; the input end of the first pressure detection component is connected with the sealing component 2, and the output end of the first pressure detection component is connected with the control component; the input end of the second pressure detection component is connected with the vacuum generation component, and the output end of the second pressure detection component is connected with the control component; when the control assembly controls the vacuum generating assembly to vacuumize the packaging bag through the sealing assembly 2, the pressure in the packaging bag is detected through the first pressure detecting assembly, the detection result is fed back to the control assembly, after the vacuum generating assembly works for a certain time, the control assembly controls the electromagnetic valve to be opened so that the air exhaust end of the vacuum generating assembly is communicated with the outside, meanwhile, the second pressure detecting assembly detects the pressure of the air exhaust end of the vacuum generating assembly in real time, the detection result is fed back to the control assembly, when the detection result of the second pressure detecting assembly is consistent with the detection result of the first pressure detecting assembly, the pressure in the packaging bag is consistent with the outside pressure, the control assembly controls the electromagnetic valve to stop so as to keep the opening degree of the electromagnetic valve, meanwhile, the packaging bag is continuously vacuumized through the vacuum generating assembly so as to prevent air from flowing back into the packaging bag, and therefore the pressure in the packaging bag keeps dynamic balance with the outside pressure, and finally, the control assembly controls the sealing assembly 2 to heat and seal the packaging bag, and the effects of accurately vacuumizing and sealing the packaging bag containing liquid products of the vacuum packaging machine can be achieved; the first pressure detecting component and the second pressure detecting component are made to be easily available pressure detectors, and the detecting ends of the two pressure detectors extend into the suction nozzle 21 and the suction end of the vacuum generating component respectively, so that the functions of detecting the pressure in the packaging bag and the suction pressure of the vacuum generating component in real time can be achieved.
In this embodiment, be provided with convenient key 14 on casing 1, and convenient key 14 is located the edge of sealing subassembly 2, and when the wrapping bag put into the work area of sealing subassembly 2, direct simple operation key 14 to sealing subassembly 2 and vacuum generating assembly send control signal, can make vacuum packaging machine carry out evacuation and seal to the wrapping bag, improved this vacuum packaging machine operating convenience, be favorable to improving vacuum packaging machine's work efficiency.
In this embodiment, the control assembly includes a main board disposed in the housing 1 and a display board 13 disposed on the top of the housing 1; the main board is electrically connected with the sealing assembly 2, the vacuum generating assembly and the display panel 13 respectively; when the portable key 14 sends a control signal to the main board, the main board respectively sends the control signal to the sealing assembly 2 and the vacuum generating assembly so as to enable the vacuum generating assembly to vacuumize the packaging bag, enable the pressing strip and the heating strip 22 to seal the packaging bag, and further realize the functions of vacuumizing and sealing the packaging bag by the vacuum packaging machine; meanwhile, the display panel 13 is electrically connected with the main board and displays the working state of the main board in real time, so that the function of monitoring the working state of the vacuum packaging machine in real time can be realized; in other embodiments, a plurality of switch buttons are further disposed on the display panel 13 to control the on/off or the working state of the vacuum packaging machine.
In this embodiment, the top of the casing 1 is detachably provided with a top cover 15; the top cover 15 is quickly disassembled so as to facilitate maintenance and management of the parts in the machine shell 1.
In this embodiment, a voice control module is disposed in the casing 1, and the voice control module is electrically connected to the motherboard; the voice control module comprises a microphone unit and a voice recognition unit, when a user uses the vacuum packaging machine, the voice control signal sent by the user is received through the microphone unit, the voice recognition unit is made to recognize the control signal, and finally, the voice recognition unit sends a signal to the main board, so that the main board makes a corresponding working instruction, and then the function of voice control of the vacuum packaging machine is met, the effect of diversified control of the vacuum packaging machine is met, and convenience in operation of the vacuum packaging machine is improved.
In this embodiment, the casing 1 is provided with a signal connector 16, the main board is electrically connected with the signal connector 16, and the signal connector 16 is electrically connected with external equipment, so as to control the vacuum packaging machine through the external equipment; preferably, the external equipment can adopt foot switch, makes foot switch pass through signal connection 16 and be connected with the mainboard electricity, after the user tramples foot switch, sends control signal to the mainboard by foot switch, and then satisfies the demand of controlling vacuum packaging machine, is favorable to liberating user's both hands, improves vacuum packaging machine's convenience to improve vacuum packaging machine's work efficiency.
In this embodiment, the casing 1 is further provided with a power interface 17 and an air outlet 18, so that the power interface 17 is electrically connected with the motherboard to supply power to the vacuum packaging machine; the air outlet 18 is communicated with the vacuum generating assembly so that air extracted from the package bag by the vacuum generating assembly is discharged out of the vacuum packaging machine along the air outlet 18.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the application in any way, but any simple modification, equivalent variation and modification of the above embodiments according to the technical principles of the present application fall within the scope of the technical solutions of the present application.
Claims (10)
1. A method of moisture vacuum sealing comprising the steps of:
step S1: acquiring basic data of a vacuum packaging bag to be packaged currently;
step S2: based on the obtained basic data of the vacuum packaging bag, giving various operation parameter data for vacuum sealing of the current vacuum packaging bag by a management background, wherein the various operation parameter data of the vacuum sealing comprise vacuum degree data, air suction time data, heating data and interference sealing monitoring data, and the interference sealing monitoring data comprise a safe sealing distance from the liquid level in the packaging bag to the packaging bag sealing, wherein the safe sealing distance is used for preventing the liquid level in the packaging bag from being too close to the packaging bag sealing and affecting normal sealing;
Step S3: the controller acquires data of various operation parameters of the vacuum seal, and controls various execution components of the vacuum packaging machine to execute the vacuumizing seal operation, wherein the vacuumizing seal operation specifically comprises the following substeps:
s31, placing the vacuum packaging bag at the working end of a vacuum packaging machine;
s32, capturing real-time image information of the vacuum packaging bag by using an image capturing device, synchronously generating a monitoring image aiming at the current vacuum packaging bag based on interference seal monitoring data given by a management background, and displaying a real-time image on an image display end, wherein the monitoring image is displayed with the interference seal monitoring data information;
s33, starting the vacuum packaging machine, executing vacuumizing operation on the vacuum packaging bag according to a first preset air extraction rate based on various operation parameter data given by a management background, monitoring the vacuum degree in the vacuum packaging bag in real time, monitoring the distance between the liquid level in the vacuum packaging bag and the seal, and monitoring and judging whether the distance between the liquid level and the seal of the vacuum packaging bag reaches a first safety seal distance;
s34, if the distance between the liquid level in the vacuum packaging bag and the seal is detected to reach the first safety seal distance, heating the packaging bag by the vacuum packaging machine, and heating at a first heating rate;
If the distance between the liquid level in the vacuum packaging bag and the seal is monitored to reach the first safety seal distance, and the vacuum degree in the vacuum packaging bag does not reach the first preset vacuum degree, the air pumping speed of the vacuum tube packaging machine is increased, and the vacuumizing operation for the vacuum packaging bag is executed at the second preset air pumping speed;
when the vacuum degree in the vacuum packaging bag is monitored to reach a first preset vacuum degree, the vacuum packaging machine performs vacuumizing and decelerating at a first acceleration speed so as to reduce the pumping speed of the vacuum machine, and the vacuum packaging machine is subjected to pressure relief so as to reduce the vacuum degree of the vacuum packaging machine;
s35, synchronously monitoring whether the distance between the liquid level in the vacuum packaging bag and the seal reaches a second safety seal distance in real time; if the distance between the liquid level in the vacuum packaging bag and the seal is detected to reach the second safety seal distance, executing step S36;
s36, when the distance between the liquid level in the vacuum packaging bag and the seal reaches the second safety seal distance, the vacuum packaging machine continuously heats the packaging bag, synchronously and in real time monitors whether the distance between the liquid level in the vacuum packaging bag and the seal reaches the critical safety seal distance, and when the distance between the liquid level in the vacuum packaging bag and the seal reaches the critical safety seal distance, the step S4 is executed;
S4, completely sealing the vacuum packaging bag by the vacuum packaging machine;
the vacuum packaging machine stops heating and the sealing of the vacuum packaging bag containing the liquid is completed.
2. A method of wet vacuum sealing according to claim 1, wherein: in step S1, basic data of a vacuum packaging bag to be packaged currently is acquired, wherein the basic data includes packaging bag size data, packaging bag volume and memory liquid volume.
3. A method of wet vacuum sealing according to claim 2, wherein: in step S2, based on the obtained basic data of the vacuum packaging bag, the management background gives out various operation parameter data for vacuum sealing of the vacuum packaging bag with the current specification, wherein the various operation parameter data of the vacuum sealing comprises vacuum degree data, air extraction rate data, heating data and interference sealing monitoring data;
the vacuum degree data comprise negative pressure value data of vacuumizing of the needle vacuum packaging machine and first preset vacuum degree data;
the air extraction rate data comprises a first preset air extraction rate and a second preset air extraction rate;
the heating data comprises a heating temperature threshold value and a heating temperature rising rate for the packaging machine to heat the packaging bag;
The interference seal monitoring data comprises a first safety seal distance, a first safety seal distance and a critical safety seal distance.
4. A method of wet vacuum sealing according to claim 3, wherein: in step S32, the image capturing device captures real-time image information of the vacuum packaging bag, and synchronously generates a monitoring image for the current vacuum packaging bag based on the interference seal monitoring data given by the management background and displays a real-time image on the image display end, where the monitoring image displays the interference seal monitoring data information, and specifically includes: based on the acquired size data of the vacuum packaging bag and the real-time shooting and taking of the size data of the packaging bag picture, the management background performs conversion according to the size proportion, and real-time marks and displays the information of the interference seal monitoring data on the currently shot packaging bag, including displaying a first safety seal distance warning line, a first safety seal distance warning line and a critical safety seal distance warning line.
5. A method of wet vacuum sealing according to claim 1, wherein: in step S34, the heating of the vacuum packaging machine is intermittent heating, the heating time period is 0-20S each time, and the time interval of each heating of the vacuum packaging machine is 0-20S each time.
6. A method of wet vacuum sealing according to claim 3, wherein: and the vacuum packaging machine vacuumizes negative pressure value data, wherein the preset negative pressure value K is 0.1-100 KPa, and when the negative pressure value of the packaging bag is K, the liquid in the packaging bag stops moving or slows down moving.
7. A wet vacuum seal control system, characterized by: the system for performing the method of wet vacuum sealing of any of claims 1-6, said system comprising:
the basic data acquisition module is used for acquiring basic data of the vacuum packaging bag to be packaged currently;
the experience data storage module is used for storing various optimal historical operation parameter data for vacuum sealing of vacuum packaging bags with different sizes and different volumes, so that the management background can conveniently set or adjust the operation parameter data of the vacuum packaging bag to be sealed currently based on the experience data;
the management background is used for calculating various operation parameter data of the vacuum sealing and sending control quality to the control module, various operation parameter data of the vacuum sealing for the current vacuum packaging bag is given based on a preset vacuum sealing algorithm, the various operation parameter data of the vacuum sealing comprise vacuum degree data, air extraction time data, heating data and interference sealing monitoring data, wherein the interference sealing monitoring data comprise a safe sealing distance from the liquid level in the packaging bag to the packaging bag sealing, which influences normal sealing, in order to avoid the liquid level in the packaging bag from being too close to the packaging bag sealing;
The monitoring display and early warning module is used for shooting and monitoring the liquid level in the vacuum packaging bag to be sealed in real time, calibrating and displaying interference seal monitoring data information on the current shot packaging bag image in real time according to the data converted by the management background according to the size proportion, and comprises the steps of displaying a first safety seal distance warning line, a first safety seal distance warning line and a critical safety seal distance warning line; meanwhile, when the liquid level is monitored to reach a corresponding safety sealing distance guard line, a first safety sealing distance guard line or a critical safety sealing distance guard line, an early warning prompt is sent out;
and the control module is used for executing various vacuum sealing operations for the packaging bags according to the control instructions sent by the management background.
8. The wet vacuum seal control system of claim 7, wherein:
the management background comprises a data receiving and transmitting unit, a calculating unit, a judging unit and an instruction transmitting unit;
the data receiving and transmitting unit is used for collecting and retrieving data of other modules or sending the data calculated by the calculating unit to the other modules;
the computing unit is used for combining the data sent by the data unit and computing various operation parameter data of the vacuum sealing, and particularly giving out various operation parameter data of vacuum sealing for the current vacuum packaging bag based on a preset vacuum sealing algorithm;
The judging unit is used for receiving the monitoring data sent by the monitoring display and early warning module, judging whether the related liquid level reaches the safety sealing distance according to a preset early warning rule, and sending the judging result to the background terminal;
the instruction sending unit is used for sending a corresponding control instruction to the control module or the early warning unit of the monitoring display and early warning module;
the monitoring display and early warning module comprises a monitoring unit and an early warning unit,
the monitoring and displaying unit is used for shooting and monitoring the liquid level in the vacuum packaging bag to be sealed in real time, calibrating and displaying interference sealing monitoring data information on the current shot packaging bag image in real time according to the data converted by the management background according to the size proportion, and displaying a first safety sealing distance warning line, a first safety sealing distance warning line and a critical safety sealing distance warning line;
and the early warning unit is used for sending out early warning prompt when the liquid level is detected to reach a corresponding safety sealing distance guard line, a first safety sealing distance guard line or a critical safety sealing distance guard line.
9. A vacuum packaging machine, characterized in that: comprises a shell (1), a sealing component, a control component, a vacuum generating component and a vacuum adjusting component;
The sealing assembly is arranged on one side of the shell and is used for vacuumizing and sealing the packaging bag;
the vacuum generating assembly is arranged on the shell and connected with the sealing assembly, and is used for providing a pressing force for the sealing assembly;
the vacuum adjusting component is arranged on the shell and connected with the vacuum generating component and used for adjusting the negative pressure value of the vacuum generating component;
the control assembly is arranged on the shell, the control assembly comprises a control main board, the control main board comprises an execution program for executing the wet vacuum sealing method according to any one of claims 1-6, and the control assembly is electrically connected with the vacuum adjusting assembly, the vacuum generating assembly and the sealing assembly respectively.
10. The vacuum packaging machine of claim 9, wherein: the vacuum adjusting assembly comprises an electromagnetic valve; the vacuum generating assembly is communicated with the electromagnetic valve;
the sealing assembly comprises a heating strip, a first pressing strip and a second pressing strip; the first pressing strip is movably arranged on the shell; the first pressing strip can move relative to the second pressing strip; the heating strip is fixedly arranged on the first pressing strip or the second pressing strip and is positioned between the first pressing strip and the second pressing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310724348.4A CN116573212A (en) | 2023-06-16 | 2023-06-16 | Method for wet vacuum sealing, control system and vacuum packaging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310724348.4A CN116573212A (en) | 2023-06-16 | 2023-06-16 | Method for wet vacuum sealing, control system and vacuum packaging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116573212A true CN116573212A (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310724348.4A Pending CN116573212A (en) | 2023-06-16 | 2023-06-16 | Method for wet vacuum sealing, control system and vacuum packaging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116573212A (en) |
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2023
- 2023-06-16 CN CN202310724348.4A patent/CN116573212A/en active Pending
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