CN113665878A - Vacuum packaging method and vacuum packaging machine - Google Patents
Vacuum packaging method and vacuum packaging machine Download PDFInfo
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- CN113665878A CN113665878A CN202111019456.9A CN202111019456A CN113665878A CN 113665878 A CN113665878 A CN 113665878A CN 202111019456 A CN202111019456 A CN 202111019456A CN 113665878 A CN113665878 A CN 113665878A
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- vacuum packaging
- suction motor
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- packaging method
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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or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
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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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
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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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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
- G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
Abstract
The invention relates to the technical field of vacuum packaging, and particularly discloses a vacuum packaging method and a vacuum packaging machine. The vacuum packaging method comprises the following steps: step S1: the pressure sensor detects the current pressure inside the to-be-packaged piece, judges whether the pressure difference P between the current pressure and the atmospheric pressure outside the to-be-packaged piece is smaller than P0, and if so, executes the step S2; if not, go to step S3; when P is Pmax, step S4 is executed, where P0 < Pmax; step S2: the air suction motor works at the speed V1 to control the air pump to vacuumize the packages to be packaged, and the step S1 is returned; step S3: the air suction motor works at the speed V2 to control the air pump to vacuumize the packages to be packaged, and the step S1 is returned; wherein V1 is less than V2; step S4: the opening of the package to be packaged is heat sealed. The vacuum packaging method can not only reduce the duration time of noise, but also reduce the energy consumption of the air exhaust motor.
Description
Technical Field
The invention relates to the technical field of vacuum packaging, in particular to a vacuum packaging method and a vacuum packaging machine.
Background
Vacuum packaging is widely applied to daily life and industrial production, and a plurality of food packaging bags need to be subjected to vacuum packaging, so that external impurities such as dust, moisture and the like are prevented from invading the food bags, and the influence on the quality of food in the packaging bags is avoided.
In the vacuum packaging machine in the prior art, when the vacuum-pumping operation is performed on the packaging bag, the motor runs in a high-power mode in the whole vacuum-pumping operation, so that the energy consumption is high, the noise is high, and the noise duration is long in the packaging process.
Therefore, it is desirable to provide a vacuum packaging method and a vacuum packaging machine to solve the above problems.
Disclosure of Invention
The invention aims to provide a vacuum packaging method and a vacuum packaging machine, which can reduce energy consumption and shorten the duration time of noise during vacuum pumping.
As the conception, the invention adopts the technical scheme that:
a method of vacuum packaging comprising the steps of:
step S1: the pressure sensor detects the current pressure inside the to-be-packaged piece, judges whether the pressure difference P between the current pressure and the atmospheric pressure outside the to-be-packaged piece is smaller than P0, and if so, executes the step S2; if not, go to step S3; when P is Pmax, step S4 is executed, where P0 < Pmax;
step S2: the air suction motor works at a speed V1 to control the air pump to vacuumize the to-be-packaged piece, and the step S1 is returned;
step S3: the air suction motor works at a speed V2 to control the air pump to vacuumize the to-be-packaged piece, and the step S1 is returned; wherein V1 is less than V2;
Step S4: and carrying out heat sealing on the opening of the to-be-packaged piece.
As a preferable embodiment of the vacuum packaging method, the step S2 further includes:
recording a first number A1 of operating cycles of the suction motor at a speed V1; when the first working period number A1 is larger than or equal to A1', an alarm gives an alarm;
and the working time T of the suction motor in each first working period is T1+ T2, wherein T1 is the running time of the suction motor, and T2 is the idle time of the suction motor.
As a preferable embodiment of the vacuum packaging method, the step S3 further includes:
recording a second number of operating cycles A2 of the suction motor operating at a speed V2; when the second working period number A2 is larger than or equal to A2', an alarm gives an alarm;
and the working time T' of the suction motor in each second working period is T3+ T4, wherein T3 is the running time of the suction motor, and T4 is the idle time of the suction motor.
As a preferable scheme of the vacuum packaging method, the alarm comprises one or more of a first indicator light, a buzzer and a voice prompter.
As a preferable scheme of the vacuum packaging method, the alarm alarms, and meanwhile the air suction motor stops working.
As a preferable scheme of the vacuum packaging method, the step S4 specifically includes:
step S41: the air suction motor works at a speed V2 to control the air pump to vacuumize the to-be-packaged parts;
step S42: the heat sealing assembly is used for heat sealing the opening of the to-be-packaged piece;
step S43: the heat sealing assembly stops working;
step S44: the air extraction motor stops working.
As a preferable mode of the vacuum packaging method, in the step S42, the preset time for the heat-sealing assembly to heat-seal the opening of the item to be packaged is 8S to 12S.
As a preferable scheme of the vacuum packaging method, the air pump is communicated with the interior of the to-be-packaged piece through an air pumping pipeline, and the pressure sensor is embedded in the air pumping pipeline.
As a preferable scheme of the vacuum packaging method, the air suction pipeline is made of a rubber hose.
To achieve the above object, the present invention further provides a vacuum packaging machine for vacuum packaging a to-be-packaged item by using the vacuum packaging method according to any one of the above aspects.
The invention has the beneficial effects that:
the invention provides a vacuum packaging method, when P is less than P0, the difference between the pressure in the to-be-packaged piece and the outside air pressure is small, at the moment, the air in the to-be-packaged piece can be easily exhausted without working with large power by an air exhaust motor; when P is larger than or equal to P0, the difference between the pressure in the to-be-packaged piece and the outside air pressure is larger, and at the moment, the air suction motor needs to work with larger power to suck the residual air in the to-be-packaged piece. According to the pressure difference between the inside and the outside of the to-be-packaged piece, the rotating speed of the air suction motor is dynamically adjusted to work at a proper motor speed, so that the continuous time of noise can be shortened, and the energy consumption of the air suction motor can be effectively reduced.
The invention provides a vacuum packaging machine, which is used for vacuum packaging of a piece to be packaged by adopting the vacuum packaging method, dynamically adjusts the rotating speed of an air suction motor according to the pressure difference between the inside and the outside of the piece to be packaged, and works at a proper motor speed, so that the continuous time of noise can be reduced, and the energy consumption of the air suction motor can be effectively reduced.
Drawings
Fig. 1 is a schematic structural view of a vacuum packing machine according to an embodiment of the present invention;
fig. 2 is a flow chart of a vacuum packaging method provided by an embodiment of the invention.
In the figure:
10-a sealing zone; 20-a heating zone;
1-a controller; 2-a pressure sensor; 3-an air extraction assembly; 4-an air extraction pipeline; 5-an alarm; 6-second indicator light.
Detailed Description
The invention is described in further detail below with reference to the figures and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and not restrictive thereof. It should be further noted that, for the convenience of description, only a part of the structure related to the present invention is shown in the drawings, not the whole structure.
In the description of the invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, releasably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly specified or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, the present embodiment provides a vacuum packaging machine, which is mainly used for vacuum packaging of food packaging bags, and in the present embodiment, the to-be-packaged items are mainly referred to as food packaging bags. Of course, in other embodiments, the vacuum packaging machine may also be used to package other products that require vacuum packaging.
Specifically, the vacuum packaging machine provided by the embodiment comprises a bearing assembly, a heat sealing assembly, an air suction assembly 3, a pressure sensor 2 and a controller 1, wherein the bearing assembly is used for bearing a to-be-packaged piece, and the air suction assembly 3 can suction air in the to-be-packaged piece; the air exhaust component 3, the heat sealing component and the pressure sensor 2 are electrically connected to the controller 1; the pressure sensor 2 can detect the current pressure inside the to-be-packaged part in real time and transmit the current pressure to the controller 1, the controller 1 calculates a pressure difference P between the current pressure and the atmospheric pressure outside the to-be-packaged part and compares the pressure difference P with Pmax, and when the pressure difference P is Pmax, the controller 1 can control the heat sealing assembly to seal the to-be-packaged part, so that the vacuum packaging of the to-be-packaged part is realized. In this embodiment, the controller 1 is specifically an MCU controller.
It should be noted that Pmax is the maximum pressure difference between the inside and the outside of the to-be-packaged item set on the controller 1 by the operator before vacuum packaging the to-be-packaged item, and when the pressure difference between the inside and the outside of the to-be-packaged item reaches Pmax, the vacuum standard in the to-be-packaged item is reached. The value of Pmax is not limited in this embodiment, and the operator can adjust Pmax according to the specific ambient temperature, atmospheric pressure, and product requirements in the package to be packaged.
In the prior art, when the to-be-packaged piece is vacuumized, the air extracting assembly 3 adopts a high-power working mode to extract air in the to-be-packaged piece in the whole air extracting process, however, in this way, the energy consumption of the air extracting assembly 3 is large, and in the high-power working mode, the noise in the air extracting process is large and the duration is long.
In order to solve the above problem, in this embodiment, the air pumping assembly 3 includes an air pump and an air pumping motor connected to each other, and the air pumping motor controls the air pump to pump the air in the to-be-packaged piece at different air pumping rates through different rotation speeds. Specifically, when P < P0, the air suction motor works at a speed V1 to control the air pump to perform the vacuumizing operation on the to-be-packaged piece; when P is more than or equal to P0, the air suction motor works at a speed V2 to control the air pump to vacuumize the to-be-packaged parts, wherein V1 is less than V2. Wherein, P0 is the internal and external pressure difference threshold of the to-be-packaged item set on the controller 1 by the operator before vacuum packaging the to-be-packaged item, when P is less than P0, it indicates that the difference between the pressure in the to-be-packaged item and the external air pressure is small, and at this time, the air-extracting motor can extract the air in the to-be-packaged item relatively easily without working with large power; when P is larger than or equal to P0, the difference between the pressure in the to-be-packaged piece and the outside air pressure is larger, and at the moment, the air suction motor needs to work with larger power to suck the residual air in the to-be-packaged piece. According to the pressure difference inside and outside the to-be-packaged piece, the rotating speed of the air suction motor is dynamically adjusted to work at a proper motor speed, so that the noise duration time can be reduced, and the energy consumption of the air suction assembly 3 can be effectively reduced.
Further, as shown in fig. 1, the air pump is communicated with the to-be-packaged piece through an air suction pipeline 4. In order to ensure the sealing performance between the air suction pipeline 4 and the to-be-packaged piece, the outer wall of the inlet of the air suction pipeline 4 can be attached to the inner wall of the opening of the to-be-packaged piece, so that external air is prevented from entering the to-be-packaged piece from a gap between the air suction pipeline 4 and the to-be-packaged piece, and the air suction efficiency is prevented from being influenced.
Alternatively, in the present embodiment, the suction line 4 is made of a rubber hose. The air suction pipeline 4 has good air tightness and can adapt to the opening shape of the to-be-packaged piece, so that the air suction efficiency of the to-be-packaged piece is ensured; in addition, the air pumping pipeline 4 made of the rubber hose can be used for randomly adjusting the trend of the air pumping pipeline 4 according to the space requirement of the vacuum packaging machine, and is convenient and flexible.
Preferably, a sealing member is further disposed between the suction pipeline 4 and the to-be-packaged part, so as to further improve the sealing effect between the suction pipeline 4 and the opening of the to-be-packaged part.
In this embodiment, the motor that bleeds adopts direct current brushless motor, and the noise when operation is less, has further reduced this vacuum packaging machine and has treated the noise when the package carries out vacuum packaging. The controller 1 can modulate the pulse width of the air-extracting motor to adjust the power of the air-extracting motor, and can compress the air in the air-extracting pipeline 4 when the air-extracting motor runs, and suck the compressed air from the inlet of the air-extracting pipeline 4 and discharge the compressed air from the outlet of the air-extracting pipeline 4.
Because the air exhaust pipeline 4 is communicated with the interior of the to-be-packaged piece, the repeated disassembly and assembly is avoided for the installation of the pressure sensor 2, and in the embodiment, the pressure sensor 2 is embedded in the air exhaust pipeline 4. By adopting the mode, the internal space of the air suction pipeline 4 can be fully utilized, the pressure sensor 2 is not exposed, and the accuracy of the detection result of the internal pressure of the to-be-packaged piece can be ensured. In the embodiment, the pressure sensor 2 is a pressure microsensor, which has a small volume and an accurate detection result.
Further, the heat-seal assembly comprises two heating strips, and the two heating strips are respectively arranged on two sides of the bearing assembly and are positioned at the opening close to the to-be-packaged piece. When the pressure difference P between the inside and the outside of the to-be-packaged item is Pmax, the controller 1 controls the two heating strips to generate heat so as to seal the to-be-packaged item.
In order to avoid the change of the pressure inside the to-be-packaged piece when the heat sealing assembly seals the to-be-packaged piece, the air exhaust assembly 3 continues to perform the vacuum pumping operation on the to-be-packaged piece during the sealing treatment; after the heat-sealing assembly finishes the sealing treatment of the to-be-packaged piece, the air exhaust assembly 3 stops working to ensure that the vacuum degree in the to-be-packaged piece which finishes the vacuum packaging meets the packaging requirement. Therefore, as shown in fig. 1, the ready-packaged parts are divided by the heat-seal line to form a sealing area 10 and a heating area 20, two heating strips are respectively opposite to the heat-seal line on both sides of the ready-packaged parts, and the inlet of the suction line 4 is located in the heating area 20. After the to-be-packaged piece is subjected to heat sealing treatment, the controller 1 controls the heating strip to stop heating, controls the air suction motor to stop working, and then takes down the to-be-packaged piece from the bearing assembly.
The embodiment also provides a vacuum packaging method, which comprises the following steps:
step S1: the pressure sensor 2 detects the current pressure inside the to-be-packaged piece, judges whether the pressure difference P between the current pressure and the atmospheric pressure outside the to-be-packaged piece is smaller than P0, and if so, executes the step S2; if not, go to step S3; when P is Pmax, step S4 is executed, where P0 < Pmax;
step S2: the air suction motor works at the speed V1 to control the air pump to vacuumize the packages to be packaged, and the step S1 is returned;
step S3: the air suction motor works at the speed V2 to control the air pump to vacuumize the packages to be packaged, and the step S1 is returned; wherein V1 is less than V2;
step S4: the opening of the package to be packaged is heat sealed.
In the actual packaging process, the pressure sensor 2 detects and transmits the current pressure inside the to-be-packaged piece to the controller 1 in real time, the controller 1 calculates the pressure difference P between the inside and the outside of the to-be-packaged piece, and compares the pressure difference P with P0 and Pmax respectively, when P is less than P0, the difference between the pressure inside the to-be-packaged piece and the outside air pressure is small, and at the moment, the air suction motor can easily suck the air inside the to-be-packaged piece without working with large power; when P is larger than or equal to P0, the difference between the pressure in the to-be-packaged piece and the outside air pressure is larger, and at the moment, the air suction motor needs to work with larger power to suck the residual air in the to-be-packaged piece. The rotating speed of the air suction motor is dynamically adjusted according to the pressure difference between the inside and the outside of the to-be-packaged piece, and the air suction motor works at a proper motor speed, so that the continuous time of noise can be shortened, and the energy consumption of the air suction motor can be effectively reduced; when the pressure in the to-be-packaged part reaches the vacuum standard, the heat sealing assembly seals the to-be-packaged part, and therefore the vacuum packaging operation of the to-be-packaged part is completed.
It can be understood that if the air pumping motor continuously works, the air pumping motor can generate more heat, so that the temperature is increased, and the hot melting of the air pump can be damaged when the temperature is too high. To solve this problem, in the present embodiment, the suction motor is operated periodically. I.e. after the suction motor has been continuously operated for 40s each time, it is stopped for 10s to cool the suction motor and the air pump. In the periodic working mode, the phenomenon of hot melt damage of the air pump caused by overhigh temperature can be avoided. Of course, in other embodiments, the duration of the operation of the suction motor and the stopping interval can be adjusted according to the actual packaging requirements.
Therefore, step S2 further includes: recording a first working period number A1 of the suction motor working at a speed V1; when the first work period number A1 is more than or equal to A1', the alarm 5 gives an alarm.
In the above steps, the operation time T of the suction motor in each first operation cycle is T1+ T2, where T1 is the operation time of the suction motor, and T2 is the idle time of the suction motor. In this embodiment, T1 is 40s, and T2 is 10 s.
Through test verification, when an operator places a to-be-packaged piece on the bearing assembly, the current pressure in the to-be-packaged piece is equal to the external air pressure; when the operator starts the vacuum packaging machine, the controller 1 controls the air suction motor to operate at a speed of V1, and under the normal condition, when the pressure difference P between the inside and the outside of the to-be-packaged piece is P0, the required first working period number a1 is less than a 1'. If the pressure difference P between the inside and the outside of the to-be-packaged part does not reach P0 when the first working period number A1 is larger than or equal to A1', the to-be-packaged part is indicated to be possibly damaged, and the alarm 5 gives an alarm and reminds an operator to check the to-be-packaged part on the bearing assembly. In the present embodiment, a1' is 5. Of course, in other embodiments, A1 'may be adjusted according to actual conditions to ensure that the pressure difference P between the inside and outside of the to-be-packaged item is P0 when the first number of operation cycles A1 ≧ A1' during which the suction motor operates at the speed V1.
Similarly, step S3 further includes: recording a second working period number A2 of the suction motor working at a speed V2; when the second working period number A2 is more than or equal to A2', the alarm 5 gives an alarm;
in the above steps, the operation time T' of the suction motor in each second operation period is T3+ T4, where T3 is the operation time of the suction motor, and T4 is the idle time of the suction motor. In this embodiment, T1 is 40s, and T2 is 10 s.
Through experimental verification, when the pressure difference P between the inside and the outside of the to-be-packaged piece is P0, the controller 1 controls the air suction motor to operate at the speed V2, and under the normal condition, when the pressure difference P between the inside and the outside of the to-be-packaged piece is Pmax, the required second working period number a2 is less than a 2'. If the pressure difference P between the inside and the outside of the to-be-packaged part does not reach Pmax when the second working period number A2 is larger than or equal to A2', the situation that the to-be-packaged part is damaged is indicated, and the alarm 5 gives an alarm and reminds an operator to check the to-be-packaged part on the bearing assembly. In the present embodiment, a2' is 4. Of course, in other embodiments, a2 'may be adjusted according to the actual situation to ensure that the pressure difference P between the inside and outside of the to-be-packaged item reaches Pmax when the suction motor operates at the speed V2 for the second number of operating cycles a2 < a 2'.
In order to save energy consumption, the controller 1 controls the air exhaust motor to stop working at the same time of alarming by the alarm 5. When the operator finishes the inspection, if the to-be-packaged piece is found to be damaged, the next to-be-packaged piece is placed on the bearing assembly again; if the ready-to-package item is found not to be broken, the operator needs to perform an inspection of the vacuum packaging machine. After the above operation is completed, the vacuum packaging machine is restarted.
Optionally, the alarm 5 comprises one or more of a first indicator light, a buzzer and a voice prompt. In this embodiment, alarm 5 includes first pilot lamp and voice prompt, and when alarm 5 reported to the police, first pilot lamp was lighted often and is shown red, and voice prompt electricity is connected in loudspeaker, and this vacuum packaging machine of voice prompt operating personnel probably breaks down to amplify sound through loudspeaker, in order to ensure that operating personnel can hear, make operating personnel can in time handle equipment trouble.
By arranging the breakage and leakage detection function on the vacuum packaging machine, the to-be-packaged piece with the breakage condition can be replaced in time, and the energy consumption of an air suction motor is saved; and the vacuum packaging machine can remind an operator to overhaul the vacuum packaging machine in time, so that the guarantee efficiency is improved.
In order to avoid that the operator mistakenly thinks that the piece to be packaged on the bearing assembly is completely vacuum-packaged when the air suction motor stops working, in the embodiment, the vacuum packaging machine further comprises a second indicator lamp 6, the second indicator lamp 6 is electrically connected with the controller 1, and when the air suction motor is in the stop stage in the working period of the air suction motor, the controller 1 controls the second indicator lamp 6 to flash to prompt the operator that the vacuum-pumping operation is not completed, so that the misoperation of the operator on the vacuum packaging machine and the packaging progress delay can be avoided; when the air exhaust motor is in the air exhaust stage in the working cycle, the controller 1 controls the second indicator lamp 6 to be normally on so as to prompt an operator to be in the air exhaust stage at the moment; after the preset stop time of the air exhaust motor is finished, the controller 1 controls the air exhaust motor to enter the next working period.
Further, step S4 specifically includes:
step S41: the air suction motor works at a speed V2 to control the air pump to vacuumize the to-be-packaged parts;
step S42: the heat sealing assembly performs heat sealing on the opening of the to-be-packaged piece;
step S43: stopping the work of the heat sealing assembly;
step S44: the air extraction motor stops working.
By adopting the packaging mode, the pressure intensity inside the to-be-packaged piece can be prevented from changing when the heat-seal assembly seals the to-be-packaged piece, and the vacuum degree in the to-be-packaged piece for completing vacuum packaging can be ensured to meet the packaging requirement.
Further, in step S42, the preset time for the heat-seal assembly to heat-seal the opening of the to-be-packaged item is 8S to 12S. Preferably, the preset time is 10 s. The preset time for heat-sealing the opening of the to-be-packaged piece by the heat-sealing assembly is not limited in the embodiment, and can be adjusted according to the actual packaging condition.
The vacuum packaging method provided by the embodiment shortens the duration time of noise of the vacuum packaging machine under the operation of higher power, reduces the power consumption of the vacuum packaging machine, and can avoid the risk that the hot melting of the air pump is easy to damage when the equipment is operated at higher power for a long time; through setting up broken hourglass and detecting the function, can in time change the package of treating that has the damaged condition, can also remind operating personnel in time to overhaul this vacuum packaging machine, improve assurance efficiency.
The foregoing embodiments are merely illustrative of the principles and features of the invention, which is not limited to the above embodiments, but is capable of various changes and modifications within the spirit and scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A method of vacuum packaging comprising the steps of:
step S1: the pressure sensor (2) detects the current pressure inside the to-be-packaged piece, judges whether the pressure difference P between the current pressure and the atmospheric pressure outside the to-be-packaged piece is smaller than P0, and if so, executes the step S2; if not, go to step S3; when P is Pmax, step S4 is executed, where P0 < Pmax;
step S2: the air suction motor works at a speed V1 to control the air pump to vacuumize the to-be-packaged piece, and the step S1 is returned;
step S3: the air suction motor works at a speed V2 to control the air pump to vacuumize the to-be-packaged piece, and the step S1 is returned; wherein V1 is less than V2;
step S4: and carrying out heat sealing on the opening of the to-be-packaged piece.
2. The vacuum packaging method according to claim 1, further comprising, in the step S2:
recording a first number A1 of operating cycles of the suction motor at a speed V1; when the first working period number A1 is larger than or equal to A1', an alarm (5) gives an alarm;
and the working time T of the suction motor in each first working period is T1+ T2, wherein T1 is the running time of the suction motor, and T2 is the idle time of the suction motor.
3. The vacuum packaging method according to claim 1, further comprising, in the step S3:
recording a second number of operating cycles A2 of the suction motor operating at a speed V2; when the second working period number A2 is larger than or equal to A2', an alarm (5) gives an alarm;
and the working time T' of the suction motor in each second working period is T3+ T4, wherein T3 is the running time of the suction motor, and T4 is the idle time of the suction motor.
4. A method according to claim 2 or 3, wherein the alarm (5) comprises one or more of a first indicator light, a buzzer and a voice prompt.
5. A method as claimed in claim 2 or 3, wherein the suction motor is deactivated at the same time as the alarm (5) alarms.
6. The vacuum packaging method according to claim 1, wherein the step S4 specifically comprises:
step S41: the air suction motor works at a speed V2 to control the air pump to vacuumize the to-be-packaged parts;
step S42: the heat sealing assembly is used for heat sealing the opening of the to-be-packaged piece;
step S43: the heat sealing assembly stops working;
Step S44: the air extraction motor stops working.
7. The vacuum packaging method according to claim 6, wherein in the step S42, the preset time for the heat-sealing assembly to heat-seal the opening of the item to be packaged is 8S-12S.
8. Vacuum packaging method according to claim 1, characterised in that the air pump communicates with the interior of the item to be packaged by means of a suction line (4), the pressure sensor (2) being embedded in the suction line (4).
9. Vacuum packaging method according to claim 8, characterized in that the suction line (4) is made of a rubber hose.
10. A vacuum packaging machine, characterized in that a package to be vacuum-packaged is vacuum-packaged by the vacuum packaging method as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111019456.9A CN113665878B (en) | 2021-09-01 | 2021-09-01 | Vacuum packaging method and vacuum packaging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111019456.9A CN113665878B (en) | 2021-09-01 | 2021-09-01 | Vacuum packaging method and vacuum packaging machine |
Publications (2)
| Publication Number | Publication Date |
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| CN113665878A true CN113665878A (en) | 2021-11-19 |
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| CN106605063A (en) * | 2014-12-17 | 2017-04-26 | 株式会社日立产机系统 | Air compressing apparatus and control method |
| CN112849573A (en) * | 2020-12-31 | 2021-05-28 | 广州亚俊氏电器有限公司 | Vacuum packaging method and vacuum packaging device |
| CN214002166U (en) * | 2020-11-01 | 2021-08-20 | 东莞市骏能电子科技有限公司 | Improved vacuum-pumping sealing machine with automatic cover locking function |
| CN214058027U (en) * | 2020-11-01 | 2021-08-27 | 东莞市骏能电子科技有限公司 | Vacuum-pumping sealing machine with improved trigger switch and automatic cover locking function |
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2021
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| GB2078658A (en) * | 1980-06-25 | 1982-01-13 | Grace W R & Co | Vacuum packaging process and apparatus |
| US6256968B1 (en) * | 1999-04-13 | 2001-07-10 | Tilia International | Volumetric vacuum control |
| TW200524785A (en) * | 2003-07-29 | 2005-08-01 | Tilia Int Inc | Vacuum pump control and vacuum feedback |
| TWM400983U (en) * | 2010-11-10 | 2011-04-01 | Tian Cherng Packing Machinery Corp | Externally extracting vacuum packaging machine |
| CN105667871A (en) * | 2012-03-27 | 2016-06-15 | 东静股份有限公司 | VACUUM PACKAGING DEVICE and control METHOD thereof |
| CN106605063A (en) * | 2014-12-17 | 2017-04-26 | 株式会社日立产机系统 | Air compressing apparatus and control method |
| CN214002166U (en) * | 2020-11-01 | 2021-08-20 | 东莞市骏能电子科技有限公司 | Improved vacuum-pumping sealing machine with automatic cover locking function |
| CN214058027U (en) * | 2020-11-01 | 2021-08-27 | 东莞市骏能电子科技有限公司 | Vacuum-pumping sealing machine with improved trigger switch and automatic cover locking function |
| CN112849573A (en) * | 2020-12-31 | 2021-05-28 | 广州亚俊氏电器有限公司 | Vacuum packaging method and vacuum packaging device |
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