CN107902133B - Vacuum packaging equipment - Google Patents
Vacuum packaging equipment Download PDFInfo
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- CN107902133B CN107902133B CN201711118135.8A CN201711118135A CN107902133B CN 107902133 B CN107902133 B CN 107902133B CN 201711118135 A CN201711118135 A CN 201711118135A CN 107902133 B CN107902133 B CN 107902133B
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- electric heating
- conductive element
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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
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
- B65B31/024—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for wrappers or bags
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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
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
- B65B51/146—Closing bags
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Vacuum Packaging (AREA)
Abstract
The invention discloses vacuum packaging equipment, which is characterized in that after a packaging bag is placed into a concave cavity, an air cylinder can act to seal the opening end of the packaging bag by hot pressing only when a vacuum pump works until the vacuum degree in the concave cavity reaches a preset value, so that the vacuum packaging equipment can ensure that the vacuum degree in the vacuum bag is qualified.
Description
Technical Field
The invention relates to vacuum packaging equipment.
Background
The vacuum packaging equipment can completely pump out and seal the air in the packaging container, and maintain the bag in a high decompression state, the air rarity is equivalent to a low oxygen effect, so that microorganisms have no survival condition, and the purposes of food freshness and no occurrence of rottenness are achieved.
Present vacuum packaging equipment generally includes a base, an apron, a vacuum pump and one seal the mechanism, be provided with the cavity that is used for placing the wrapping bag that is equipped with the product on the base, the apron is used for the lid to close on the base in order to seal the cavity, the extraction opening of vacuum pump is linked together through pipeline and cavity, seal the mechanism setting in the cavity, when vacuum packaging equipment used, place the cavity with the wrapping bag in, then cover the apron, then open the vacuum pump, the vacuum pump takes out the air in the cavity, after vacuum pump work a period, it is sealed with the open end of wrapping bag to seal the mechanism, in order to accomplish the vacuum packaging of product.
However, the vacuum packaging equipment has the following disadvantages when in use: after the vacuum pump works for a period of time (the time length is preset), the vacuum degree in the concave cavity is qualified, and then the product is sealed, but the vacuum sealing device is only suitable for the condition that the concave cavity is completely sealed and is not air-tight, in practical use, the concave cavity is often not completely sealed by the cover plate, and certain gaps always exist to enable air to enter the concave cavity.
Disclosure of Invention
The invention aims to solve the technical problem of providing vacuum packaging equipment which can ensure that the vacuum degree in a packaging bag is qualified.
In order to solve the technical problem, the invention provides vacuum packaging equipment which comprises a base, a cover plate, a vacuum pump and a sealing mechanism, wherein a cavity for placing a packaging bag filled with a product is arranged on the base;
a first groove is arranged in the concave cavity, a first conductive element and a second conductive element are arranged in the first groove, and when the cover plate covers the base, the third conductive element is arranged opposite to the first conductive element and the second conductive element;
the sealing mechanism comprises two first electric heating sealing strips and two second electric heating sealing strips, two second grooves are formed in the cavity, a mounting seat is arranged in each second groove, the two first electric heating sealing strips are respectively arranged on the two mounting seats, the cover plate is provided with two cylinders, the two second electric heating sealing strips are respectively arranged on piston rods of the two cylinders, and when the cover plate covers the base, the two first electric heating sealing strips are respectively arranged opposite to the two second electric heating sealing strips;
the vacuum packaging equipment also comprises an inflator pump, a relay, an electromagnetic valve, a switch, a power supply and an air source, wherein an air outlet of the inflator pump is communicated with the cavity through a pipeline;
the first conductive element, the electromagnetic coil of the electromagnetic valve, the power supply, the inflator pump, the coil of the relay and the second conductive element are sequentially connected in series;
the switch, the power supply, the normally closed contact of the relay and the vacuum pump are sequentially connected in series to form a loop;
the air source is connected with one end of the electromagnetic valve through an air supply pipeline, and the other end of the electromagnetic valve is respectively connected with the two air cylinders through the air supply pipeline;
when this vacuum packaging equipment used, make two first electric heat sealing tapes and two second electric heat sealing tapes circular telegram generate heat earlier, then in the cavity was placed to the wrapping bag that will be equipped with the product, make the both ends of wrapping bag be located the top of two first electric heat sealing tapes respectively, then close the apron lid on the base, then close the switch and make vacuum pump circular telegram work, the in-process gasbag with cavity evacuation at the vacuum pump extends gradually, when the vacuum in the cavity reached the predetermined value, the length of gasbag makes third conductive element and first conductive element, the second conductive element contacts, this moment:
a coil of the relay is electrified to break a normally closed contact of the relay, and the vacuum pump stops working;
meanwhile, an electromagnetic coil of the electromagnetic valve is electrified to conduct a gas channel of the electromagnetic valve, so that the two cylinders work, piston rods of the two cylinders respectively push the two second electric heating sealing strips to move, and the two ends of the packaging bag are respectively sealed by the two first electric heating sealing strips and the two second electric heating sealing strips in a hot-pressing manner;
meanwhile, the inflator pump is electrified to work, the inflator pump charges the cavity, after the cavity is inflated for a certain time, the air bag retracts to enable the third conductive element to be separated from the first conductive element and the second conductive element, the electromagnetic valve is powered off and closed, the piston rods of the two cylinders retract to enable the two second electric heating sealing strips to return, then the cover plate is opened to take out the packaging bag which is subjected to vacuum packaging, and the packaging bag which is subjected to vacuum packaging is placed into the next packaging bag which is filled with the product; after the third conductive element is separated from the first conductive element and the second conductive element, the coil of the relay loses power to enable the normally closed contact of the relay to be conducted, and therefore the vacuum pump starts to work again;
the two mounting seats have the same structure, each mounting seat comprises a first mounting seat and a second mounting seat, the second mounting seat is positioned above the first mounting seat, and the mounting seats further comprise an adjusting mechanism used for adjusting the horizontal angle of the second mounting seats when the first electric heating seal strip is pressed down by the second electric heating seal strip so as to enable the first electric heating seal strip and the second electric heating seal strip to be parallel to each other; the two first electric heating sealing strips are respectively and horizontally arranged on the upper surface of the second mounting seat of the two mounting seats;
the adjusting mechanism comprises four guide posts arranged on the upper surface of the first mounting seat, four guide holes are formed in the second mounting seat, the aperture of each guide hole is slightly larger than the diameter of each guide post, the four guide posts are movably inserted into the four guide holes respectively, a pressure spring is sleeved on each guide post, and the two ends of each pressure spring are equally distributed and respectively abutted against the first mounting seat and the second mounting seat.
After adopting the structure, compared with the prior art, the invention has the following advantages:
the invention is suitable for vacuum packaging of packaging bags with openings at two ends, when in packaging, the packaging bags with products are placed in a concave cavity, then a cover plate is covered on a base, then a switch is closed to enable a vacuum pump to work in a power-on mode, the air pressure in the concave cavity is gradually reduced when the vacuum pump gradually pumps out the air in the concave cavity, the air inside the air bag is communicated with the outside atmosphere through an air hole, thus, the air pressure difference is formed between the air bag inside and the concave cavity, the air bag is pushed by the air pressure to extend, the air pressure in the concave cavity is continuously reduced along with the continuous work of the vacuum pump, the air pressure difference between the air bag inside and the concave cavity is larger and larger, the air bag is continuously extended, when the vacuum degree in the concave cavity reaches a preset value, the length of the air bag just enables a third conductive element to be in contact with a first conductive element and a second conductive element, and, at the moment, the electromagnetic valve is electrified and conducted, the two cylinders work, and the two cylinders respectively push the two second electric heating sealing strips to move, so that the two second electric heating sealing strips and the two first electric heating sealing strips respectively seal two ends of the packaging bag in a hot-pressing manner; thus, in the invention, only when the vacuum degree in the concave cavity reaches a preset value, enough pressure difference can be formed between the inner part of the air bag and the concave cavity to enable the air bag to extend to enough length to enable the third conductive element to be in contact with the first conductive element and the second conductive element, if the cover plate does not completely seal the concave cavity, namely if a gap exists to enable air to enter the concave cavity, the vacuumizing time of the vacuum pump is correspondingly prolonged, only when the vacuum degree in the concave cavity reaches the preset value after the vacuum pump works, the cylinder can act to seal the open end of the packaging bag in a hot-pressing manner, therefore, even if the concave cavity is not sealed tightly, only the working time of the vacuum pump is prolonged to ensure that the vacuum degree in the packaging bag is qualified, the condition that the packaging bag is sealed in a hot-pressing manner when the vacuum degree in the concave cavity is unqualified can not, thereby avoiding the food in the packaging bag from being rotten due to the residual air in the packaging bag.
Drawings
FIG. 1 is a schematic structural view of the present invention (when the cover plate is not covered on the base);
FIG. 2 is a schematic structural view of the present invention (when the cover plate is covered on the base);
FIG. 3 is a schematic view of the structure of the present invention (when the sealing mechanism seals the product);
FIG. 4 is a schematic diagram of the circuit configuration of the present invention;
FIG. 5 is a schematic diagram of another circuit configuration of the present invention;
FIG. 6 is a schematic view of the gas path structure of the present invention;
fig. 7 is a schematic structural view of the mount.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 7, the vacuum packaging apparatus of the present invention comprises a base 1, a cover plate 2, a vacuum pump 3 and a sealing mechanism, wherein the base 1 is provided with a cavity 4 for placing a packaging bag containing a product, the bottom of the cavity 4 is horizontal so as to horizontally place the packaging bag, the cover plate 2 is used for covering the base 1 so as to seal the cavity 4, an air suction opening of the vacuum pump 3 is communicated with the cavity 4 through a pipeline, the cover plate 2 is provided with a telescopic air bag 5, the air bag 5 is fixed with a third conductive element 501, and the cover plate 2 is provided with an air hole 6 for communicating the air bag 5 with the atmosphere.
The concave cavity 4 is internally provided with a first groove 7, the first groove 7 is internally provided with a first conductive element 8 and a second conductive element 9, the upper end of the first conductive element 8 and the upper end of the second conductive element 9 are both lower than the bottom surface of the concave cavity 4, thus the first conductive element 8 and the second conductive element 9 can be prevented from being touched by mistake, and when the cover plate 2 is covered on the base 1, the third conductive element 501 is arranged opposite to the first conductive element 8 and the second conductive element 9.
The sealing mechanism comprises two first electric heating sealing strips 10 and two second electric heating sealing strips 11, two second grooves 12 are formed in the cavity 4, a mounting seat 20 is arranged in each second groove 12, the two first electric heating sealing strips 10 are arranged on the two mounting seats 20 respectively, two cylinders 13 are arranged on the cover plate 2, the two second electric heating sealing strips 11 are arranged on piston rods of the two cylinders 13 respectively, when the cover plate 2 covers the base 1, the two first electric heating sealing strips 10 are arranged opposite to the two second electric heating sealing strips 11 in a one-to-one correspondence mode respectively, and therefore when the two cylinders act, the piston rods of the two cylinders can respectively push the two second electric heating sealing strips 11 to move so that the two second electric heating sealing strips 11 and the two first electric heating sealing strips 10 clamp two ends of the packaging bag tightly to seal two ends of the packaging bag in a hot pressing mode.
The vacuum packaging equipment also comprises an air pump 14, a relay 15, an electromagnetic valve 16, a switch 17, a power supply 18 and an air source 19, wherein the air outlet of the air pump 14 is communicated with the cavity 4 through a pipeline.
The first conductive element 8, the electromagnetic coil of the electromagnetic valve 16, the power supply 18, the inflator 14, the coil of the relay 15 and the second conductive element 9 are connected in series in sequence.
The switch 17, the power supply 18, the normally closed contact of the relay 15 and the vacuum pump 3 are sequentially connected in series to form a loop.
The air source 19 is connected with one end of the electromagnetic valve 16 through an air supply pipeline, and the other end of the electromagnetic valve 16 is respectively connected with the two air cylinders 13 through the air supply pipeline.
When the vacuum packaging equipment is used, firstly, the two first electric heating sealing strips and the two second electric heating sealing strips are electrified to generate heat, then a packaging bag filled with a product is placed in the cavity, two ends of the packaging bag are respectively positioned above the two first electric heating sealing strips, then the cover plate is covered on the base, a distance is reserved between the packaging bag and the first electric heating sealing strips and between the packaging bag and the second electric heating sealing strips, then the switch is turned on to enable the vacuum pump to be electrified to work, in the process that the cavity is vacuumized by the vacuum pump, the air pressure in the cavity is gradually reduced, the air pressure difference between the interior of the air bag and the cavity is increased, so that the air bag is gradually extended through the air pressure difference, when the vacuum degree in the cavity reaches a preset value, the length of the air bag just enables the third conductive element to be in contact with the first conductive element and the second conductive element, so that the first conductive, at this point the following three actions are triggered:
(1) the coil of the relay is electrified to break the normally closed contact of the relay, and the vacuum pump stops working;
(2) the electromagnetic coil of the electromagnetic valve is electrified to conduct a gas channel of the electromagnetic valve, the gas source supplies gas to the two cylinders to enable the two cylinders to work, piston rods of the two cylinders respectively push the two second electric heating sealing strips to move, the two second electric heating sealing strips and the two first electric heating sealing strips respectively clamp two ends of the packaging bag, and the two first electric heating sealing strips and the two second electric heating sealing strips seal two ends of the packaging bag in a hot-pressing manner;
(3) the air pump is electrified to work, the air pump is used for filling air into the cavity, after the air pump is inflated for a certain time, the air bag retracts to enable the third conductive element to be separated from the first conductive element and the second conductive element, the electromagnetic valve is powered off and closed, the piston rods of the two cylinders both retract to enable the two second electric heating sealing strips to return, therefore, after the air pump is inflated for a short time, the third conductive element can be separated from the first conductive element and the second conductive element, the two second electric heating sealing strips return to avoid the situation that the packaging bag is damaged due to overlong hot pressing time of the second electric heating sealing strips and the first electric heating sealing strips on the packaging bag, then the cover plate is opened to take out the packaging bag which is subjected to vacuum packaging, and the packaging bag with the next product; after foretell third conductive element breaks away from first conductive element and second conductive element, the coil of relay loses the electricity and makes the normally closed contact of relay switch on to make the vacuum pump restart work, like this, when new wrapping bag was put into the cavity, the vacuum pump was in operating condition, at this moment only need with apron lid close the base on, can begin to carry out vacuum packaging, convenient operation to new wrapping bag.
The two installation bases 20 have completely consistent structures, the installation base 20 comprises a first installation base 21 and a second installation base 22, the second installation base 22 is positioned above the first installation base 21, the first electric heating seal strip 10 is horizontally arranged on the second installation base 22, the installation base 20 further comprises an adjusting mechanism used for adjusting the horizontal angle of the second installation base 22 when the first electric heating seal strip 10 is pressed down by the second electric heating seal strip 11 so as to enable the first electric heating seal strip 10 and the second electric heating seal strip 11 to be parallel to each other, the adjusting mechanism comprises four guide posts 23 arranged on the upper surface of the first installation base 21, the four guide posts 23 are respectively positioned at four corners of the first installation base 21, the second installation base 22 is provided with four guide holes 24, the four guide holes 24 are respectively positioned at four corners of the second installation base 22, the guide posts 23 and the guide holes 24 are arranged in a one-to-one correspondence manner, the aperture of the guide hole 24 is slightly larger than the diameter of the guide post 23, four guide posts 23 are movably inserted into four guide holes 24, each guide post 23 is sleeved with a pressure spring 25, two ends of each pressure spring 25 are respectively abutted against the first mounting seat 21 and the second mounting seat 22, thus, the first electric heating seal strip and the second electric heating seal strip are arranged in one-to-one correspondence, if the first electric heating seal strip and the second electric heating seal strip are deviated when being mounted, so that the corresponding first electric heating seal strip and the second electric heating seal strip are not parallel to each other, when the cylinder pushes the second electric heating seal strip to press down and press the second electric heating seal strip to clamp the packaging bag with the corresponding first electric heating seal strip so as to carry out hot-pressing sealing on the packaging bag, the second electric heating seal strip can exert a downward pressure on the first electric heating seal strip, namely, the second mounting seat can move downwards under the downward pressure, at the aperture of the guide hole is slightly larger than the diameter of the guide, when the second mounting seat is pressed downwards and moves downwards, the second mounting seat can automatically adjust the horizontal inclination angle of the second mounting seat according to the horizontal angle of the second electric heating seal strip, so that the first electric heating seal strip and the corresponding second electric heating seal strip can be completely parallel, the first electric heating seal strip and the corresponding second electric heating seal strip can completely seal the opening end of the packaging bag, and the situation that a part of area of the opening end of the packaging bag is not sealed by hot pressing due to the fact that the first electric heating seal strip and the second electric heating seal strip are not completely parallel is avoided.
The above description is only about the preferred embodiment of the present invention, but it should not be understood as limiting the claims, and the present invention may be modified in other structures, not limited to the above structures. In general, all changes which come within the scope of the invention as defined by the independent claims are intended to be embraced therein.
Claims (1)
1. The utility model provides a vacuum packaging equipment, it includes a base (1), a apron (2), a vacuum pump (3) and one seals the mechanism, is provided with cavity (4) that are used for placing the wrapping bag that is equipped with the product on base (1), apron (2) are used for the lid to close on base (1) in order to seal cavity (4), and the extraction opening of vacuum pump (3) is linked together its characterized in that through pipeline and cavity (4): the cover plate (2) is provided with a telescopic air bag (5), a third conductive element (501) is fixed on the air bag (5), and the cover plate (2) is provided with an air hole (6) for communicating the air bag (5) with the atmosphere;
a first groove (7) is formed in the concave cavity (4), a first conductive element (8) and a second conductive element (9) are arranged in the first groove (7), and when the cover plate (2) covers the base (1), the third conductive element (501) is arranged opposite to the first conductive element (8) and the second conductive element (9);
the sealing mechanism comprises two first electric heating sealing strips (10) and two second electric heating sealing strips (11), two second grooves (12) are formed in the cavity (4), an installation seat (20) is arranged in each second groove (12), the two first electric heating sealing strips (10) are respectively arranged on the two installation seats (20), two air cylinders (13) are arranged on the cover plate (2), the two second electric heating sealing strips (11) are respectively arranged on piston rods of the two air cylinders (13), and when the cover plate (2) covers the base (1), the two first electric heating sealing strips (10) are respectively arranged opposite to the two second electric heating sealing strips (11);
the vacuum packaging equipment also comprises an air pump (14), a relay (15), an electromagnetic valve (16), a switch (17), a power supply (18) and an air source (19), wherein an air outlet of the air pump (14) is communicated with the cavity (4) through a pipeline;
the first conductive element (8), the electromagnetic coil of the electromagnetic valve (16), the power supply (18), the inflator pump (14), the coil of the relay (15) and the second conductive element (9) are sequentially connected in series;
the switch (17), the power supply (18), the normally closed contact of the relay (15) and the vacuum pump (3) are sequentially connected in series to form a loop;
the air source (19) is connected with one end of the electromagnetic valve (16) through an air supply pipeline, and the other end of the electromagnetic valve (16) is respectively connected with the two air cylinders (13) through the air supply pipeline;
when this vacuum packaging equipment used, make two first electric heat sealing tapes and two second electric heat sealing tapes circular telegram generate heat earlier, then in the cavity was placed to the wrapping bag that will be equipped with the product, make the both ends of wrapping bag be located the top of two first electric heat sealing tapes respectively, then close the apron lid on the base, then close the switch and make vacuum pump circular telegram work, the in-process gasbag with cavity evacuation at the vacuum pump extends gradually, when the vacuum in the cavity reached the predetermined value, the length of gasbag makes third conductive element and first conductive element, the second conductive element contacts, this moment:
a coil of the relay is electrified to break a normally closed contact of the relay, and the vacuum pump stops working;
meanwhile, an electromagnetic coil of the electromagnetic valve is electrified to conduct a gas channel of the electromagnetic valve, so that the two cylinders work, piston rods of the two cylinders respectively push the two second electric heating sealing strips to move, and the two first electric heating sealing strips and the two second electric heating sealing strips respectively seal two ends of the packaging bag in a hot-pressing manner;
meanwhile, the inflator pump is electrified to work, the inflator pump charges the cavity, after the cavity is inflated for a certain time, the air bag retracts to enable the third conductive element to be separated from the first conductive element and the second conductive element, the electromagnetic valve is powered off and closed, the piston rods of the two cylinders retract to enable the two second electric heating sealing strips to return, then the cover plate is opened to take out the packaging bag which is subjected to vacuum packaging, and the packaging bag which is subjected to vacuum packaging is placed into the next packaging bag which is filled with the product; after the third conductive element is separated from the first conductive element and the second conductive element, the coil of the relay loses power to enable the normally closed contact of the relay to be conducted, and therefore the vacuum pump starts to work again;
the two installation bases (20) are completely consistent in structure, each installation base (20) comprises a first installation base (21) and a second installation base (22), each second installation base (22) is located above the corresponding first installation base (21), and each installation base (20) further comprises an adjusting mechanism used for adjusting the horizontal angle of each second installation base (22) when the corresponding first electric heating seal (10) is pressed down by the corresponding second electric heating seal (11) so that the first electric heating seal (10) and the corresponding second electric heating seal (11) are parallel to each other; the two first electric heating seals (10) are respectively and horizontally arranged on the upper surfaces of the second mounting seats (22) of the two mounting seats (20);
adjustment mechanism including setting up four guide post (23) on the upper surface of first mount pad (21), be provided with four guiding hole (24) on second mount pad (22), the aperture of guiding hole (24) slightly is greater than the diameter of guide post (23), four guide post (23) are mobilizable respectively and insert and establish in four guiding hole (24), all overlap on every guide post (23) and be equipped with a pressure spring (25), the both ends of every pressure spring (25) are equallyd divide and are do not offseted with first mount pad (21) and second mount pad (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118135.8A CN107902133B (en) | 2017-11-14 | 2017-11-14 | Vacuum packaging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118135.8A CN107902133B (en) | 2017-11-14 | 2017-11-14 | Vacuum packaging equipment |
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| Publication Number | Publication Date |
|---|---|
| CN107902133A CN107902133A (en) | 2018-04-13 |
| CN107902133B true CN107902133B (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711118135.8A Active CN107902133B (en) | 2017-11-14 | 2017-11-14 | Vacuum packaging equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN107902133B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111572896B (en) * | 2020-04-29 | 2021-07-23 | 重庆市天润食品开发有限公司 | Dried tofu packaging bag closing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001130511A (en) * | 1999-11-08 | 2001-05-15 | Furukawa Mfg Co Ltd | Vacuum packaging device |
| CN201694423U (en) * | 2010-05-27 | 2011-01-05 | 张艺 | Thermocompression enclosed system assembly for vacuum packaging machine |
| CN203975279U (en) * | 2014-05-28 | 2014-12-03 | 温州苍源科技有限公司 | A kind of novel evacuated wrapping machine |
| CN104528032A (en) * | 2014-12-22 | 2015-04-22 | 昆山龙腾光电有限公司 | Vacuum packaging machine and vacuum packaging method |
| CN206024133U (en) * | 2016-09-27 | 2017-03-15 | 谭志高 | A kind of easy reliable vacuum machine heating wire fixing device |
-
2017
- 2017-11-14 CN CN201711118135.8A patent/CN107902133B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001130511A (en) * | 1999-11-08 | 2001-05-15 | Furukawa Mfg Co Ltd | Vacuum packaging device |
| CN201694423U (en) * | 2010-05-27 | 2011-01-05 | 张艺 | Thermocompression enclosed system assembly for vacuum packaging machine |
| CN203975279U (en) * | 2014-05-28 | 2014-12-03 | 温州苍源科技有限公司 | A kind of novel evacuated wrapping machine |
| CN104528032A (en) * | 2014-12-22 | 2015-04-22 | 昆山龙腾光电有限公司 | Vacuum packaging machine and vacuum packaging method |
| CN206024133U (en) * | 2016-09-27 | 2017-03-15 | 谭志高 | A kind of easy reliable vacuum machine heating wire fixing device |
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| CN107902133A (en) | 2018-04-13 |
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Effective date of registration: 20220128 Address after: 510000 No. 42, Dabu Road, Xiuquan street, Huadu District, Guangzhou, Guangdong Patentee after: Guangzhou Yidong Technology Co.,Ltd. Address before: 510000, room 1, 1711 Hisense street, Haizhuqu District, Guangdong, Guangzhou Patentee before: Luo Shaoyuan |
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Effective date of registration: 20230731 Address after: 510000 No. 42 Dabu Road, Xinhua Street, Huadu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Yidong electromechanical Co.,Ltd. Address before: 510000 No. 42, Dabu Road, Xiuquan street, Huadu District, Guangzhou, Guangdong Patentee before: Guangzhou Yidong Technology Co.,Ltd. |
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