CN207045834U - Vacuum packing machine vacuum system - Google Patents
Vacuum packing machine vacuum system Download PDFInfo
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- CN207045834U CN207045834U CN201720688085.6U CN201720688085U CN207045834U CN 207045834 U CN207045834 U CN 207045834U CN 201720688085 U CN201720688085 U CN 201720688085U CN 207045834 U CN207045834 U CN 207045834U
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- vacuum
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- air bag
- vacuum chamber
- magnetic valve
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Abstract
The utility model discloses a kind of vacuum packing machine vacuum system, including：Vacuum chamber,Vacuum tank,Vacuum extractor,Closing device,Control system,The control system can receive first,Second vacuum-ness detecting device,The data of temperature detector,And vacuum extractor can be controlled,Have first,Second,3rd magnetic valve,The work of air bag magnetic valve,And the work of vacuum system is automatically controlled by the practical vacuum degree of vacuum chamber and vacuum tank,The work of closing device is automatically controlled by temperature detection,Be capable of reality reflects vacuum system and the working condition of vacuum chamber,It is good to vacuumize and seal effect,Greatly improve vacuum-packed qualification rate,Prevent due to vavuum pump,The failure of vacuum line or vacuum source,It is caused not reach required vacuum and be not prompted,Also prevented not to be prompted due to closure system failure,Cause to seal insecure or other sealings unqualified and still continue to produce,Produce,Cause to lose.
Description
Technical field
A kind of packaging facilities is the utility model is related to, particularly a kind of vacuum packing machine vacuum system.
Background technology
Vacuum packing machine is common packaging facilities, and the vacuum system of existing vacuum packing machine typically directly passes through
Vavuum pump is connected with vacuum chamber, and is equipped with time controller, sets pumpdown time and heat-sealing time, vacuumize so as to reaching and
The effect of heat-sealing, still, in actual production process, simple vacuumizes and seals time control, it is difficult to really feeds back to
The actual state of vacuum system and vacuum chamber, so easily there is the problems such as exhaust is insufficient or sealing is imperfect, influence product
Qualification rate.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of packaging vacuum packet that effect is good and qualification rate is high
Installation vacuum system.
Technical scheme is used by the utility model solves its technical problem：
Vacuum packing machine vacuum system, including：
Vacuum chamber, the vacuum chamber are used to place the packaging bag equipped with product, and vacuum chamber interface is configured with vacuum chamber,
The first vacuum-ness detecting device is configured with the vacuum chamber, the vacuum chamber interface is communicated to outside by an atmospheric pipe
Air, pressure-releasing electromagnetic valve is configured with the atmospheric pipe；
Vacuum tank, first interface and second interface are offered on the vacuum tank, and the first interface passes through one first pipe
Road is connected to vacuum chamber interface, and the second vacuum-ness detecting device is configured with the vacuum tank；
Vacuum extractor, the vacuum extractor, which is provided with, vacuumizes interface, and the vacuum chamber interface passes through one second pipe
Road, which is connected to, vacuumizes interface, and the interface that vacuumizes is connected to the second interface by one the 3rd pipeline, in first interface
Place is provided with the first magnetic valve, and second solenoid valve is provided with second pipe, and the 3rd magnetic valve is provided with second interface；
Closing device, the closing device include the first air bag and the second air bag, first air bag and second gas
The first hot knife, the second hot knife are respectively arranged with capsule, first air bag and the second air bag are connected by an air intake duct respectively
Extraneous air is connected to, air bag magnetic valve is provided with air intake duct, is set respectively on first hot knife and the second hot knife
There is temperature detector.
Control system, the control system can receive the first vacuum-ness detecting device, the second vacuum-ness detecting device, temperature
The data of detector are spent, and vacuum extractor can be controlled, have the first magnetic valve, second solenoid valve, the 3rd magnetic valve, air bag electricity
The work of magnet valve.
Preferable, the closing device, which is configured with, can detect the first air bag and the second air bag aeration status or can examine
The sealing inductor of the first hot knife and the second hot knife location status is surveyed, the sealing inductor is that pressure sensor or position pass
Sensor.
The vacuum chamber interface is communicated to gas storage tanks or gas generator, the air inlet pipe by an admission line
Air inlet electromagnetic valve is configured with road.
A kind of control method of vacuum packing machine vacuum system, vacuum packing machine vacuum system have following working condition：
Holding state, working condition, sealing state, control system established standardses vacuum, control system setting heat-sealing temperature and cooling
Temperature；
When vacuum packing machine vacuum system is initially opened, the first magnetic valve, second solenoid valve, air bag magnetic valve, which are in, closes
State, the 3rd magnetic valve are in opening, when the second vacuum-ness detecting device detects that the vacuum of vacuum tank is not up to marked
During quasi- vacuum, vacuum extractor starts, and when the second vacuum-ness detecting device, to detect that the vacuum of vacuum tank reaches standard true
During reciprocal of duty cycle, the 3rd closed electromagnetic valve, vacuum extractor is closed, and vacuum packing machine vacuum system is in holding state；
When vacuum packing machine vacuum system is in holding state, the packaging bag equipped with product is put into vacuum chamber, first
Magnetic valve is opened, and starts vacuum extractor, and vacuum chamber passes through the first pipeline communication, vacuum packing machine vacuum system with vacuum tank
It is in running order, when the vacuum for the vacuum chamber that the first vacuum-ness detecting device detects, which is not up to standard vacuum, to be spent, close
The first magnetic valve, the 3rd magnetic valve are closed, and opens second solenoid valve；When the vacuum chamber that the first vacuum-ness detecting device detects
Vacuum reaches standard vacuum when spending, and closes second solenoid valve, the first magnetic valve, opens the 3rd magnetic valve, and vacuum packing machine is true
Empty set system enters sealing state, when the second vacuum-ness detecting device detects that the vacuum of vacuum tank reaches standard vacuum and spent,
Close the 3rd magnetic valve and vacuum extractor；
When vacuum packing machine vacuum system is in sealing state, air bag magnetic valve, the first air bag and the second air bag are opened
Air-breathing promotes the first hot knife and the movement of the second hot knife to be sealed, and heats the first hot knife and the second hot knife to heat-sealing
Temperature, stop the first hot knife of heating and the second hot knife, when the first hot knife and the second hot knife are cooled to chilling temperature,
Pressure-releasing electromagnetic valve is opened, vacuum chamber connects with extraneous air so that the first air bag and the second air-pocket reset, and open vacuum chamber and take
Go out packaged product.
Preferably, vacuum chamber is fastened by negative pressure, when vacuum chamber and ft connection, loses negative pressure state, vacuum chamber is certainly
Move out.
The standard vacuum degree is -90KPa to -100KPa.
The standard vacuum degree is -95KPa.
The heat-sealing temperature is 130 DEG C to 180 DEG C.
The chilling temperature is 80 DEG C to 90 DEG C.
The chilling temperature is 85 DEG C.
In holding state, when the second vacuum-ness detecting device detects that the vacuum of vacuum tank is unable to reach standard vacuum
When spending, control system sends alarm signal, generally " vacuum tank or periphery equipment vacuum failure " or " solenoid valve failure ".
In working condition, when the vacuum for the vacuum chamber that the first vacuum-ness detecting device detects, to be unable to reach standard true
During reciprocal of duty cycle, control system sends alarm signal, generally " vacuum pump failure ", " vacuum chamber or periphery equipment vacuum failure " or
" solenoid valve failure ".
During sealing state, when the first hot knife and the second hot knife are unable to reach heat-sealing temperature, control system sends report
Alert signal, generally " heating system malfunction ", " transformer fault " or " left side fever tablet failure ", " right side fever tablet failure ".
In the state of sealing, when the first hot knife and the second hot knife can not reach specified location, control system is sent
Alarm signal, general alarm signal are " air bag failure or air bag solenoid valve failure ".
If under sealing state, air bag magnetic valve can not close, pressure-releasing electromagnetic valve can not be opened, then send " air bag magnetic valve
Failure ", " pressure-releasing electromagnetic valve failure ".
The beneficial effects of the utility model are：Vacuum packing machine vacuum system, including：Vacuum chamber, vacuum tank, vacuum means
Put, closing device, control system, the control system can receive the first vacuum-ness detecting device, the second vacuum degree measurement dress
Put, the data of temperature detector, and can control vacuum extractor, have the first magnetic valve, second solenoid valve, the 3rd magnetic valve,
The work of air bag magnetic valve, and the work of vacuum system is automatically controlled by the practical vacuum degree of vacuum chamber and vacuum tank, pass through
Temperature detection automatically controls the work of closing device, and be capable of reality reflects vacuum system and the working condition of vacuum chamber, takes out
Vacuum and heat-sealing effect are good, greatly improve vacuum-packed qualification rate, and operating efficiency is high.
In addition, the utility model can also drastically increase vacuum-packed qualification rate, prevent due to vavuum pump, vacuum tube
Road or the failure of vacuum source, it is caused not reach required vacuum and be not prompted, already enter in sealing program.Also shut out
It is not prompted due to closure system failure absolutely, it is unqualified and still continue to give birth to causes to seal insecure or other sealings
Production, produce, cause to lose.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram of the utility model vacuum system.
Embodiment
Reference picture 1, Fig. 1 is the principle schematic of one specific embodiment of the utility model, as illustrated, vacuum packing machine
Vacuum system, including vacuum chamber 1, vacuum tank 2, vacuum extractor 3, closing device, control system, the vacuum chamber 1 are used to put
The packaging bag equipped with product is put, vacuum chamber interface is configured with vacuum chamber 1, the first vacuum is configured with the vacuum chamber 1
Detection means, the vacuum chamber interface are communicated to extraneous air by an atmospheric pipe 95, configured on the atmospheric pipe 95
There is pressure-releasing electromagnetic valve 85；
First interface and second interface are offered on the vacuum tank 2, the first interface is connected by one first pipeline 91
Vacuum chamber interface is connected to, the second vacuum-ness detecting device is configured with the vacuum tank 2.
The vacuum extractor 3, which is provided with, vacuumizes interface, and the vacuum chamber interface is connected to by a second pipe 92
Interface is vacuumized, the interface that vacuumizes is connected to the second interface by one the 3rd pipeline 93, is set at first interface
There is the first magnetic valve 81, second solenoid valve 82 is provided with second pipe 92, the 3rd magnetic valve is provided with second interface
83, it is preferred that the vacuum extractor 3 is a vavuum pump.
The closing device includes the first air bag 41 and the second air bag 42, divides on the air bag 42 of the first air bag 41 and second
The first hot knife, the second hot knife are not provided with, and the air bag 42 of the first air bag 41 and second is connected by an air intake duct 94 respectively
Extraneous air is connected to, air bag magnetic valve 84 is provided with air intake duct 94, is distinguished on first hot knife and the second hot knife
It is provided with temperature detector.
The control system can receive the first vacuum-ness detecting device, the second vacuum-ness detecting device, temperature detector
Data, and can control vacuum extractor 3, have the first magnetic valve 81, second solenoid valve 82, the 3rd magnetic valve 83, air bag electricity
The work of magnet valve 84.
During work, vacuum packing machine vacuum system has following working condition：Holding state, working condition, sealing state,
Control system established standardses vacuum, control system setting heat-sealing temperature and chilling temperature
In the present embodiment, the standard vacuum degree is -90KPa to -100KPa, is preferably -95KPa, vacuumizes and reach
Perfect condition, -92KPa or -98KPa, or other vacuums in the range of also can be selected certainly, be not described in detail here.
In the present embodiment, the heat-sealing temperature is 130 DEG C to 180 DEG C, and the heat-sealing temperature is according to different packaging bag materials
The hot melting temperature of material and set, be not described in detail here, the chilling temperature is 80 DEG C to 90 DEG C, preferably 85 DEG C, certain temperature
Degree can also be set according to different materials, be not described in detail here.
When vacuum packing machine vacuum system is initially opened, the first magnetic valve 81, second solenoid valve 82, at air bag magnetic valve 84
In closed mode, the 3rd magnetic valve 83 is in opening, when the second vacuum-ness detecting device detects the vacuum of vacuum tank 2
When not up to standard vacuum is spent, vacuum extractor 3 starts, when the second vacuum-ness detecting device detects the vacuum of vacuum tank 2
When reaching standard vacuum and spending, the 3rd magnetic valve 83 is closed, and vacuum extractor 3 is closed, and vacuum packing machine vacuum system is in standby
State；
When vacuum packing machine vacuum system is in holding state, the packaging bag equipped with product is put into the vacuum chamber 1,
In the present embodiment, be provided with proximity switch in vacuum chamber 1, when vacuum chamber 1 is closed, proximity switch by shutdown signal send to
Control system, the first magnetic valve 81 is opened, and starts vacuum extractor 3, and vacuum chamber 1 is connected with vacuum tank 2 by the first pipeline 91
Logical, vacuum packing machine vacuum system is in running order.
When the vacuum for the vacuum chamber 1 that the first vacuum-ness detecting device detects, which is not up to standard vacuum, to be spent, the is closed
One magnetic valve 81, the 3rd magnetic valve 83, and open second solenoid valve 82；When the vacuum chamber that the first vacuum-ness detecting device detects
1 vacuum reaches standard vacuum when spending, and closes second solenoid valve 82, the first magnetic valve 81, opens the 3rd magnetic valve 83, vacuum
Packing machine vacuum system enters sealing state, when the second vacuum-ness detecting device detects that the vacuum of vacuum tank 2 reaches standard
During vacuum, close the 3rd magnetic valve 83 and vacuum extractor 3, vacuum system are in holding state.
When vacuum packing machine vacuum system is in sealing state, air bag magnetic valve 84, the first air bag 41 and second are opened
The air-breathing of air bag 42 promotes the first hot knife and the movement of the second hot knife to be sealed, and heats the first hot knife and the second hot knife
To heat-sealing temperature, stop the first hot knife of heating and the second hot knife, treat that the first hot knife and the second hot knife are cooled to cooling
During temperature, pressure-releasing electromagnetic valve 85 is opened, vacuum chamber 1 connects with extraneous air, and vacuum chamber 1 reaches normal atmosphere (An) so that first
The air bag 42 of air bag 41 and second resets, and closes air bag magnetic valve 84, and opens vacuum chamber 1 and take out packaged product, in this reality
Apply in example, vacuum chamber 1 is fastened by negative pressure, and is configured with proximity switch, when vacuum chamber 1 and ft connection, loses negative pressure shape
State, vacuum chamber 1 automatically spring open.
New product is put into after taking out product, closes pressure-releasing electromagnetic valve 85, opens the first magnetic valve 81, and start vacuum means
3 are put, vacuum chamber 1 is connected with vacuum tank 2 by the first pipeline 91, vacuum packing machine vacuum system rearming.
The utility model automatically controls the work of vacuum system by the practical vacuum degree of vacuum chamber and vacuum tank, passes through heat
The temperature detection of envelope knife automatically controls the work of closing device, is capable of the work shape for reflecting vacuum system and vacuum chamber of reality
Condition, it is good to vacuumize and seal effect, greatly improves vacuum-packed qualification rate, and when vacuum chamber works, vacuum tank is rapid
Connection, while vacuum pump startup, accelerate vacuum chamber to be rapidly achieved -95KPa vacuum, realize and be vacuum-packed in current industry
The pumpdown time of speed is most influenceed in journey, is significantly shortened, it is high to improve operating efficiency.
In the present embodiment, the first hot knife and the second hot knife can seal to the both ends of packaging bag respectively,
The upper lid position of vacuum chamber 1 is respectively arranged with silica gel strip corresponding with the first hot knife and the second hot knife, when the first air bag 41
Promote the first hot knife and the second hot knife to be moved upward to and be pressed on silica gel strip with the air-breathing of the second air bag 42, and heat completion
Sealing, silica gel strip have preferable resistance to elevated temperatures, so can preferably ensure the quality of sealing.
Preferably, the closing device, which is configured with, can detect the first air bag 41 and the aeration status of the second air bag 42 or can
The sealing inductor of the first hot knife and the second hot knife location status is detected, the sealing inductor is pressure sensor or position
Sensor, in the state of sealing, if the first hot knife and the second hot knife can not reach specified location, control system sends report
Alert signal, generally " air bag failure or air bag solenoid valve failure ".
In holding state, when the second vacuum-ness detecting device, to detect that the vacuum of vacuum tank 2 is unable to reach standard true
During reciprocal of duty cycle, control system sends alarm signal, generally " vacuum tank or periphery equipment vacuum failure " or " solenoid valve failure ".
In working condition, when the vacuum for the vacuum chamber 1 that the first vacuum-ness detecting device detects is unable to reach standard
During vacuum, control system sends alarm signal, generally " vacuum pump failure ", " vacuum chamber or periphery equipment vacuum failure " or
" solenoid valve failure ".
During sealing state, when the first hot knife and the second hot knife are unable to reach heat-sealing temperature, control system sends report
Alert signal, generally " heating system malfunction ", " transformer fault " or " left side fever tablet failure ", " right side fever tablet failure ".
If under sealing state, air bag magnetic valve 84 can not close, pressure-releasing electromagnetic valve 85 can not be opened, then send " air bag electricity
Magnet valve failure ", " pressure-releasing electromagnetic valve failure ".
Further, the vacuum chamber interface is communicated to gas storage tanks or gas generator by an admission line 96,
Air inlet electromagnetic valve 86 is configured with the admission line 96, gas storage tanks or gas generator can supply inert gas or guarantor
Gas is protected, in working condition, when the vacuum of vacuum chamber 1, which reaches standard vacuum, to be spent, air inlet electromagnetic valve 86 is opened, to vacuum
Injection inert gas or protective gas, closing device are configured with electric and pneumatic or manual driving system, entered in room 1 and packaging bag
Row heat-sealing, so as to meet different packing instructions.
The utility model has advantages below：
1st, vacuum automatic detection, it is ensured that each product is to meet default vacuum；
2nd, there is exceptional value, automatic detection, fault alarm in vacuum system；
3rd, there is exceptional value, automatic detection, fault alarm in control system；
4th, sealing temperature automatic detection, it is ensured that each product is to meet default heat-sealing temperature；
5th, there is exceptional value, automatic detection, fault alarm in heat-sealing port system；
6th, after failture evacuation, a key resets；
7th, band high-capacity vacuum tank, intelligent control vacuum tank, it is ensured that true in -95KPa in vacuum tank during holding state
Reciprocal of duty cycle；
8th, when vacuum chamber works, vacuum tank connects rapidly, while vacuum pump startup, accelerates vacuum chamber to be rapidly achieved -95KPa
Vacuum, realize the pumpdown time for most influenceing speed in current industry in Vacuum packing processes, significantly shorten；
9th, system possesses automatic inflating (ventilation) function, when enable fill and (change) gas pattern when, set needs fills and (changes) gas
Number, tracheae pipeline joint connects nitrogen or other inert gases can be automatically performed and entirely fill and (change) gas, sealing, cold filling and (change)
But the overall process work, uncapped.
In addition, the utility model can also drastically increase vacuum-packed qualification rate, prevent due to vavuum pump, vacuum tube
Road or the failure of vacuum source, it is caused not reach required vacuum and be not prompted, already enter in sealing program.Also shut out
It is not prompted due to closure system failure absolutely, it is unqualified and still continue to give birth to causes to seal insecure or other sealings
Production, produce, cause to lose.
Above to it is of the present utility model preferably implement illustrated, certainly, the utility model can also use with
The different form of above-mentioned embodiment, what those skilled in the art were made on the premise of without prejudice to spirit of the invention etc.
Same conversion or corresponding change, should all belong in the scope of protection of the utility model.
Claims (3)
1. vacuum packing machine vacuum system, it is characterised in that including：
Vacuum chamber (1), the vacuum chamber (1) are used to place the packaging bag equipped with product, and vacuum chamber is configured with vacuum chamber (1)
Interface, the vacuum chamber (1) is interior to be configured with the first vacuum-ness detecting device, and the vacuum chamber interface passes through an atmospheric pipe
(95) extraneous air is communicated to, pressure-releasing electromagnetic valve (85) is configured with the atmospheric pipe (95)；
Vacuum tank (2), first interface and second interface is offered on the vacuum tank (2), the first interface passes through one first
Pipeline (91) is connected to vacuum chamber interface, and the second vacuum-ness detecting device is configured with the vacuum tank (2)；
Vacuum extractor (3), the vacuum extractor (3), which is provided with, vacuumizes interface, and the vacuum chamber interface passes through one second
Pipeline (92), which is connected to, vacuumizes interface, and the interface that vacuumizes is connected to the second interface by one the 3rd pipeline (93),
The first magnetic valve (81) is provided with first interface, second pipe (92) place is provided with second solenoid valve (82), second
Interface is provided with the 3rd magnetic valve (83)；
Closing device, the closing device include the first air bag (41) and the second air bag (42), first air bag (41) and
The first hot knife, the second hot knife, first air bag (41) and the second air bag (42) point are respectively arranged with two air bags (42)
Not by an air intake duct (94) externally connected air, air bag magnetic valve (84) is provided with air intake duct (94), described first
Temperature detector is respectively arranged with hot knife and the second hot knife；
Control system, the control system can receive the first vacuum-ness detecting device, the second vacuum-ness detecting device, temperature inspection
The data of device are surveyed, and vacuum extractor (3) can be controlled, have the first magnetic valve (81), second solenoid valve (82), the 3rd electromagnetism
The work of valve (83), air bag magnetic valve (84), the work by the practical vacuum degree of vacuum chamber and vacuum tank from control vacuum system
Make, the work of closing device is controlled by temperature detection.
2. vacuum packing machine vacuum system according to claim 1, it is characterised in that：The closing device is configured with can
Detect the first air bag (41) and the second air bag (42) aeration status or the first hot knife and the second heat-sealing cutter position shape can be detected
The sealing inductor of state.
3. vacuum packing machine vacuum system according to claim 1, it is characterised in that：The vacuum chamber interface passes through one
Admission line (96) is communicated to gas storage tanks or gas generator, and admission line (96) place is configured with air inlet electromagnetic valve
(86)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688085.6U CN207045834U (en) | 2017-06-13 | 2017-06-13 | Vacuum packing machine vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688085.6U CN207045834U (en) | 2017-06-13 | 2017-06-13 | Vacuum packing machine vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207045834U true CN207045834U (en) | 2018-02-27 |
Family
ID=61493822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720688085.6U Active CN207045834U (en) | 2017-06-13 | 2017-06-13 | Vacuum packing machine vacuum system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207045834U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107187638A (en) * | 2017-06-13 | 2017-09-22 | 中山市小榄镇丰兴包装机械厂 | Vacuum packing machine vacuum system and its control method |
| CN112393514A (en) * | 2019-08-16 | 2021-02-23 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN112393518A (en) * | 2019-08-16 | 2021-02-23 | 海信（山东）冰箱有限公司 | Refrigerator with vacuum packaging device |
| CN112393516A (en) * | 2019-08-16 | 2021-02-23 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN112777036A (en) * | 2021-01-27 | 2021-05-11 | 漳州市易利得自动化科技有限公司 | Auxiliary vacuum-pumping device and method for efficient vacuum tank |
| CN115320963A (en) * | 2022-09-30 | 2022-11-11 | 江西万申机械有限责任公司 | Boxing cooling device and method for medicine box production |
-
2017
- 2017-06-13 CN CN201720688085.6U patent/CN207045834U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107187638A (en) * | 2017-06-13 | 2017-09-22 | 中山市小榄镇丰兴包装机械厂 | Vacuum packing machine vacuum system and its control method |
| CN112393514A (en) * | 2019-08-16 | 2021-02-23 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN112393518A (en) * | 2019-08-16 | 2021-02-23 | 海信（山东）冰箱有限公司 | Refrigerator with vacuum packaging device |
| CN112393516A (en) * | 2019-08-16 | 2021-02-23 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN112393514B (en) * | 2019-08-16 | 2022-05-10 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN112777036A (en) * | 2021-01-27 | 2021-05-11 | 漳州市易利得自动化科技有限公司 | Auxiliary vacuum-pumping device and method for efficient vacuum tank |
| CN115320963A (en) * | 2022-09-30 | 2022-11-11 | 江西万申机械有限责任公司 | Boxing cooling device and method for medicine box production |
| CN115320963B (en) * | 2022-09-30 | 2023-11-10 | 江西万申机械有限责任公司 | Boxing cooling device and method for medicine box production |
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