CN108528810B - Vacuum packaging method and device for square objects in plastic bag - Google Patents

Vacuum packaging method and device for square objects in plastic bag Download PDF

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Publication number
CN108528810B
CN108528810B CN201710137207.7A CN201710137207A CN108528810B CN 108528810 B CN108528810 B CN 108528810B CN 201710137207 A CN201710137207 A CN 201710137207A CN 108528810 B CN108528810 B CN 108528810B
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China
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plastic bag
pair
suction nozzle
tongue
opening
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CN201710137207.7A
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CN108528810A (en
Inventor
黄忠信
连仁伟
邵荣宗
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Mas Automation Corp
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Mas Automation Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/06Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being arranged for insertion into, and withdrawal from, the mouth of a filled container and operating in conjunction with means for sealing the container mouth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/14Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146Closing bags

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

The invention provides a vacuum packaging method of a square object in a plastic bag, which comprises the following steps of: synchronously moving a pair of deflector rods and a suction nozzle to implant into the opening of the plastic bag, continuously moving the pair of deflector rods to open the opening of the plastic bag to form a straight-line-shaped gap, enabling the suction nozzle to continuously guide negative pressure to the plastic bag to establish vacuum, moving a pair of pressing plates to press the surface of the plastic bag at the periphery of the straight-line-shaped gap up and down, and further sealing the straight-line-shaped gap. The invention further provides a vacuum packaging device for the square objects in the plastic bag, which is required for implementing the method. Therefore, the problem that the prior art can only adopt a manual operation mode to carry out vacuum packaging on the plastic bag filled with the square object is solved.

Description

Vacuum packaging method and device for square objects in plastic bag
Technical Field
The present invention relates to a vacuum packaging method for square articles before shipment by using plastic bags, and more particularly to a vacuum packaging method and a vacuum packaging device for square articles after the square articles are filled in the plastic bags.
Background
After the production of the product or the object, the product or the object is usually packaged in a vacuum manner, and it is known that the vacuum packaging generally relies on a plastic bag to fill the object, then air in the bag is pumped out, and the plastic bag is sealed, so as to complete the vacuum packaging operation of the object in the bag.
Here, taking the vacuum packaging operation before shipment of the mobile phone panels as an example, it is described that the panels are placed in a tray one by one after production, and a plurality of trays with the panels placed therein are stacked to form a square body, and then the square object is accommodated by a plastic bag and vacuum packaging operation is performed. In addition to the aforementioned pallets, many objects in the form of squares in a mill are also vacuum packed prior to shipment.
The vacuum packing operation is to prevent the articles from being affected by moisture during transportation after shipment, such as cold and hot temperatures during shipping and transportation, or weather factors such as moisture and humidity. Therefore, the articles need to be vacuum-packed before shipment, so as to avoid the phenomenon that the articles are affected by moisture and the quality of the articles is affected or damaged due to the above factors.
In the vacuum packaging process, the plastic bag is soft and easy to collapse, and particularly, the process of filling objects by opening the plastic bag is not easy to be controlled by an automatic machine every time the opening of the plastic bag is opened, so that the operation procedure of vacuum packaging the objects (particularly square objects) by using the plastic bag is only completed by manual operation in the market until now.
Disclosure of Invention
In view of the above, the technical problems to be solved by the present invention are: the problem that the prior art can only adopt a manual operation mode to carry out vacuum packaging on the plastic bag filled with the square object is solved.
In order to overcome the above technical problems, an object of the present invention is to provide a vacuum packaging method for a square object in a plastic bag, which is characterized in that the method comprises the following steps of:
synchronously moving a pair of tongue-shaped deflector rods and a tongue-shaped suction nozzle to implant into the opening of the plastic bag, and continuously moving the tongue-shaped deflector rods to prop open the opening of the plastic bag to form a linear gap;
continuously guiding the suction nozzle to the plastic bag to extract the air in the plastic bag to form vacuum;
moving a pair of pressing plates to press the surface of the plastic bag at the periphery of the linear gap up and down so as to seal the linear gap;
wherein, the tongue-shaped deflector rod and the suction nozzle are synchronously moved to be separated from the linear gap at the moment of the upper and lower pressing of the pair of pressing plates, and at least one of the pair of pressing plates is an electrothermal pressing plate.
In a further implementation, the tongue-shaped deflector rods are implanted into the opening of the plastic bag at a distance relatively close to the suction nozzle, and expand the opening of the plastic bag at a distance relatively far from the suction nozzle.
In a further implementation, the distance relatively close to the nozzle and the distance relatively far from the nozzle are located on the same straight path, which is referred to as the first straight path.
In a further implementation, the pair of tongue shaped levers and the suction nozzle are located on the first straight path.
In further implementations, the pair of pressing plates press the surfaces of the plastic bags at the periphery of the linear gap up and down along a second linear path, and the second linear path is perpendicular to the first linear path.
The above method can be achieved by an apparatus technique, and to this end, an embodiment of the present invention provides an apparatus for vacuum packaging a square object in a plastic bag, comprising:
a carrying platform which is movably arranged at one side of a working platform surface, wherein a plastic bag filled with square objects is placed on the working platform surface, and the opening of the plastic bag faces to the direction of the carrying platform;
a pair of tongue-shaped deflector rods respectively arranged on the carrying platform in a sliding way;
a tongue-shaped suction nozzle fixedly arranged between the pair of tongue-shaped deflector rods on the carrying platform; and
and the pair of pressing plates are movably arranged above and below the opening of the plastic bag placed on the working table surface, and at least one of the pair of pressing plates is an electric heating pressing plate.
In a further implementation, the pair of tongue-shaped deflector rods and the suction nozzle are driven by the carrier to be implanted into the opening of the plastic bag.
In a further implementation, the tongue-shaped deflector rods are implanted into the opening of the plastic bag at a distance relatively close to the suction nozzle, and expand the opening of the plastic bag at a distance relatively far from the suction nozzle.
In a further implementation, the opening of the plastic bag is expanded by the tongue-shaped deflector rods to form a linear gap.
In further implementations, the pair of tongue shaped levers move along a first linear path to the distance relatively close to the nozzle or the distance relatively far from the nozzle.
In a further implementation, the pair of tongue shaped levers and the suction nozzle are located on the first straight path.
In further implementations, the pair of pressing plates press the surfaces of the plastic bags on the periphery of the zigzag slit up and down along a second linear path, and the second linear path is perpendicular to the first linear path.
According to the technical means, the invention has the technical effects that: the automatic vacuum packaging operation is performed on the plastic bags filled with the square objects, so that the vacuum packaging efficiency of the square objects before shipment on a production line can be improved.
The details of the above-described method and apparatus, as well as the details of its implementation in the performance of the method and apparatus, are explained with reference to the following examples and drawings.
Drawings
FIG. 1 is a flow chart illustrating the steps of the method for vacuum packaging a square object in a plastic bag according to the present invention;
FIGS. 2a to 2e are schematic diagrams illustrating the method of FIG. 1;
FIG. 3 is a perspective view of a vacuum packaging apparatus for square objects in a plastic bag according to the present invention;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a side view of FIG. 3;
FIGS. 6a to 6e are schematic views illustrating the operation of the vacuum packaging apparatus for square objects in plastic bags according to the present invention.
Description of reference numerals: 10, plastic bags; 11, opening; 12 a linear gap; 20a, 20b deflector rods; 21a, 21b linear slides; 30 suction nozzles; 31 a gas flow channel; 40a, 40b platens; 41a, 41b vertical pneumatic cylinders; 50 a biaxial movement mechanism; 51 a vertical drive; 52 horizontal driver; a 60 stage; 70 a work table; 80 an article; A. b, a straight line path; h1, h2 distance.
Detailed Description
Referring to fig. 1, the vacuum packaging method for a square object in a plastic bag according to the present invention includes the following steps S1 to S5:
step S1: deflector rod and opening of suction nozzle implanted plastic bag
Referring to fig. 2a, a plastic bag 10 is illustrated as a quadrangular plastic bag according to the present invention, the plastic bag 10 has an opening 11 such that an object can be filled into the plastic bag 10 through the opening 11, and the opening 11 of the plastic bag 10 is irregular due to the supporting of the object filled in the plastic bag 10; implanting a pair of tongue- shaped levers 20a and 20b and a tongue-shaped nozzle 30 into the opening 11 of the plastic bag 10 in a synchronously moving manner, wherein the pair of levers 20a and 20b and the nozzle 30 are located on a straight line path a in practice, the nozzle 30 is located between the pair of levers 20a and 20b, the pair of levers 20a and 20b are implanted into the opening 11 of the plastic bag 10 at a distance h1 relatively close to the nozzle 30, and the distance h1 is smaller than the width of the opening 11 of the plastic bag 10 in practice, so as to facilitate the implantation of the pair of levers 20a and 20b and the nozzle 30 into the opening 11 of the plastic bag 10.
Step S2: the deflector rod opens the opening of the plastic bag to form a linear gap
Referring to fig. 2b, the pair of levers 20a will be described. 20b move along a linear path a in a direction relatively away from the suction nozzle 30, and further support the opening 11 of the plastic bag 10, so that the opening 11 of the plastic bag 10 forms a linear slit 12, and the pair of levers 20a and 20b are implemented to support the opening 11 of the plastic bag 10 by a distance h2 relatively away from the suction nozzle 30.
Step S3: the suction nozzle guides the negative pressure to the plastic bag to establish vacuum
Referring to fig. 2c, it is illustrated that the suction nozzle 30 has an air flow passage 31 therein, after the suction nozzle 30 is implanted into the opening 11 of the plastic bag 10, the suction nozzle 30 continuously guides negative pressure into the plastic bag 10 through the air flow passage 31 to capture air in the plastic bag 10, since the opening 11 of the plastic bag 10 is supported by the pair of rods 20a and 20b to form a linear gap 12, and the area of the linear gap 12 is smaller than that of the opening 11 of the plastic bag 10, when the suction nozzle 30 captures air in the plastic bag 10, external air can be reduced from entering the plastic bag 10, so as to facilitate formation of a vacuum state in the plastic bag 10.
Step S4: pressing plate pressing integrated slot
Referring to fig. 2d, it is illustrated that a pair of pressing plates 40a and 40B are respectively disposed above and below the linear gap 12, the pair of pressing plates 40a and 40B can press the surface of the plastic bag 10 around the linear gap 12 up and down along a linear path B, and the pair of pressing plates 40a and 40B synchronously move the pair of levers 20a and 20B and the suction nozzle 30 away from the linear gap 12 at the instant of pressing up and down, so that the linear gap 12 is tightly closed by the pressing of the pair of pressing plates 40a and 40B, so as to prevent external air from entering the plastic bag 10 through the linear gap 12, and further maintain the vacuum state in the plastic bag 10, wherein the linear path B is perpendicular to the linear path a.
Step S5: sealing the linear gap
Please refer to fig. 2e, which illustrates that after the pair of levers 20a and 20b and the suction nozzle 30 are separated from the linear gap 12, the linear gap 12 is tightly closed by the pressing of the pair of pressing plates 40a and 40b, and then the linear gap 12 is sealed at a high temperature, wherein at least one of the pair of pressing plates 40a and 40b is an electric heating pressing plate, so as to perform the sealing operation after the linear gap 12 is pressed.
On the other hand, referring to fig. 3, fig. 4 and fig. 5, it is shown that the present invention also provides a vacuum packaging apparatus for a square object in a plastic bag, so that the vacuum packaging method for the square object in the plastic bag can be easily implemented. The vacuum packaging device for the square object in the plastic bag comprises a pair of levers 20a, 20b, a nozzle 30 and a pair of pressing plates 40a, 40 b. Wherein:
the pair of levers 20a, 20b are respectively slidably disposed on a carrier 60, the carrier 60 is movably disposed on one side of a table 70, the plastic bag 10 filled with the square object 80 is placed on the table 70, the opening 11 of the plastic bag 10 faces the carrier 60, and the pair of levers 20a, 20b can be driven by the carrier 60 to move along the Y-Z axis and then implanted into the opening 11 of the plastic bag 10. Further, the stage 60 is configured on a biaxial moving mechanism 50 in practice, the biaxial moving mechanism 50 includes a vertical driver 51 and a horizontal driver 52, the vertical driver 51 can drive the stage 60 to move along the Z-axis, and the horizontal driver 52 can drive the stage 60 to move along the Y-axis. More specifically, due to the characteristic of the plastic bag 10 that it is easy to collapse due to its soft texture, the opening 11 of the plastic bag 10 is located at a lower position, so that the height of the pair of levers 20a, 20b needs to be adjusted to facilitate the insertion of the pair of levers 20a, 20b into the opening 11 of the plastic bag 10.
The suction nozzle 30 is fixed on the carrier 60 and located between the pair of levers 20a and 20b, and the suction nozzle 30 can be driven by the carrier 60 to be implanted into the opening 11 of the plastic bag 10. Further, the nozzle 30 and the pair of levers 20a, 20b are located on a linear path a, and the pair of levers 20a, 20b can be relatively close to or relatively far from the nozzle 30 along the linear path a, which is parallel to the X-axis. More specifically, the pair of levers 20a and 20b are slidably disposed on the carrier 60 via a linear slide rail 21a and 21b, respectively, so that the pair of levers 20a and 20b can reciprocate along the linear path a and further move relatively closer to or relatively farther away from the nozzle 30.
The pair of pressing plates 40a, 40B are disposed above and below the opening 11 of the plastic bag 10 on the table 70, wherein the plastic bag 10 is filled with the square objects 80, the pair of pressing plates 40a, 40B are connected with a vertical pneumatic cylinder 41a, 41B, respectively, the pair of pressing plates 40a, 40B are driven by the vertical pneumatic cylinder 41a, 41B to press the surface of the plastic bag 10 around the linear gap 12 up and down along a linear path B, which is parallel to the Z-axis in practice, i.e. the linear path B is perpendicular to the linear path a. At least one of the pair of pressing plates 40a, 40b is an electric heating pressing plate, and after the pair of pressing plates 40a, 40b are pressed against the linear slit 12, the linear slit 12 is sealed.
Referring to fig. 6a to 6e, the operation illustration of the present invention is sequentially disclosed, in which the pair of levers 20a and 20b and the suction nozzle 30 are driven by the carrier 60 to be implanted into the opening 11 of the plastic bag 10 (as shown in fig. 6 a), the pair of levers 20a and 20b move in a direction relatively away from the suction nozzle 30 to further open the opening 11 of the plastic bag 10, so that the opening 11 of the plastic bag 10 forms a linear slit 12 (as shown in fig. 6 b), the suction nozzle 30 uses a negative pressure to capture air in the plastic bag 10 to form a vacuum state in the plastic bag 10 (as shown in fig. 6 c), then the pair of pressing plates 40a and 40b press the surface of the plastic bag 10 around the linear slit 12 from above and below (as shown in fig. 6 d), and simultaneously the pair of levers 20a and 20b and the suction nozzle 30 are pulled out of the linear slit 12, the linear gap 12 can be tightly closed by the pressing of the pair of pressing plates 40a, 40b, and finally, the plastic bag 10 is sealed at a high temperature by using at least one of the pair of pressing plates 40a, 40b as an electric heating pressing plate (as shown in fig. 6 e).
The above examples are only for the purpose of illustrating preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention.

Claims (12)

1. A vacuum packaging method for square objects in a plastic bag is characterized by comprising the following steps of aiming at an opening of the plastic bag filled with the square objects:
synchronously moving a pair of tongue-shaped deflector rods and a tongue-shaped suction nozzle to implant into the opening of the plastic bag, and continuously moving the tongue-shaped deflector rods to prop open the opening of the plastic bag to form a linear gap, wherein the tongue-shaped deflector rods are positioned on two sides of the tongue-shaped suction nozzle;
continuously guiding the suction nozzle to the plastic bag to extract the air in the plastic bag to form vacuum;
moving a pair of pressing plates to press the surface of the plastic bag at the periphery of the linear gap up and down so as to seal the linear gap;
wherein, the tongue-shaped deflector rod and the suction nozzle are synchronously moved to be separated from the linear gap at the moment of the upper and lower pressing of the pair of pressing plates, and at least one of the pair of pressing plates is an electric heating pressing plate;
wherein, the pair of tongue-shaped deflector rods and the tongue-shaped suction nozzle are synchronously implanted into the opening of the plastic bag and synchronously separated from the linear gap of the plastic bag, and the extending ends of the deflector rods and the suction nozzle are positioned on the same straight line.
2. The method of claim 1, wherein the method comprises the steps of: the pair of tongue-shaped deflector rods are implanted into the opening of the plastic bag at a distance relatively close to the suction nozzle and expand the opening of the plastic bag at a distance relatively far away from the suction nozzle.
3. The method of claim 2, wherein the method comprises the steps of: the distance relatively close to the suction nozzle and the distance relatively far from the suction nozzle are located on the same straight line path, and the same straight line path is called a first straight line path.
4. The method of claim 3, wherein the method comprises: the pair of tongue-shaped deflector rods and the suction nozzle are located on the first straight line path.
5. The method of claim 3, wherein the method comprises: the pair of pressing plates press the surface of the plastic bag at the periphery of the straight-line-shaped gap up and down along a second straight line path, and the second straight line path is vertical to the first straight line path.
6. A vacuum packaging device for square objects in plastic bags is characterized in that the vacuum packaging device comprises:
a carrying platform which is movably arranged at one side of a working platform surface, wherein a plastic bag filled with square objects is placed on the working platform surface, and the opening of the plastic bag faces to the direction of the carrying platform;
a pair of tongue-shaped deflector rods respectively arranged on the carrying platform in a sliding way;
a tongue-shaped suction nozzle fixedly arranged between the pair of tongue-shaped deflector rods on the carrying platform; and
a pair of pressing plates which are movably arranged above and below the opening of the plastic bag placed on the working table surface, wherein at least one of the pressing plates is an electric heating pressing plate;
wherein, the pair of deflector rods and the extending end head of the suction nozzle are always positioned on the same straight line.
7. The vacuum packaging apparatus for square objects in plastic bags according to claim 6, further comprising: the pair of tongue-shaped deflector rods and the suction nozzle are driven by the carrier to be implanted into the opening of the plastic bag.
8. The vacuum packaging apparatus for square objects in plastic bags according to claim 7, further comprising: the pair of tongue-shaped deflector rods are implanted into the opening of the plastic bag at a distance relatively close to the suction nozzle and expand the opening of the plastic bag at a distance relatively far away from the suction nozzle.
9. The vacuum packaging apparatus for square objects in plastic bags according to claim 8, further comprising: the opening of the plastic bag is expanded by the tongue-shaped deflector rods to form a linear gap.
10. The vacuum packaging apparatus for square objects in plastic bags according to claim 9, further comprising: the pair of tongue-shaped deflector rods move along a first straight path to a distance relatively close to the suction nozzle or a distance relatively far away from the suction nozzle.
11. The vacuum packaging apparatus for square objects in plastic bags according to claim 10, further comprising: the pair of tongue-shaped deflector rods and the suction nozzle are located on the first straight line path.
12. The vacuum packaging apparatus for square objects in plastic bags according to claim 10, further comprising: the pair of pressing plates press the surfaces of the plastic bags on the periphery of the I-shaped gap up and down along a second straight line path, and the second straight line path is perpendicular to the first straight line path.
CN201710137207.7A 2017-03-06 2017-03-09 Vacuum packaging method and device for square objects in plastic bag Active CN108528810B (en)

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TW106107217A TWI654119B (en) 2017-03-06 2017-03-06 Vacuum packaging method and device for square objects in plastic bag
TW106107217 2017-03-06

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CN108528810B true CN108528810B (en) 2020-09-01

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Publication number Priority date Publication date Assignee Title
CN109592106A (en) * 2019-01-02 2019-04-09 安徽瑞邦生物科技有限公司 A kind of intelligent vacuum sealing machine
CN112722408A (en) * 2020-12-31 2021-04-30 泌阳亿健食品有限公司 Mushroom food vacuum packaging machine
CN115158796B (en) * 2022-09-07 2022-11-11 泉州海关综合技术服务中心 Secondary packaging hardware after tealeaves detects

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US3866390A (en) * 1973-03-28 1975-02-18 Westinghouse Electric Corp Apparatus for evacuating and sealing thermoplastic bags
DE19705743A1 (en) * 1997-02-14 1998-08-20 Windmoeller & Hoelscher Filling and closing thermoplastic sacks
CN2700243Y (en) * 2004-06-04 2005-05-18 云南安化有限责任公司 Plastic bag air extraction and heat seal device using a duckbill air extraction nozzle
CN201010068Y (en) * 2007-02-09 2008-01-23 洪长波 Automatic vacuum packaging machine
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TWM544476U (en) * 2017-03-06 2017-07-01 Wei Kuang Automation Co Ltd Vacuum packaging device for square article inside plastic bag

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