CN108528828B - Vacuum packing method and device for square articles - Google Patents

Abstract

The present invention provides a vacuum packaging method for square objects, which includes constructing a first adsorption area to adsorb a plastic bag in a flat shape to a work platform for pressing and positioning, and constructing two second adsorption areas for adsorption work respectively. The top and bottom surfaces of the plastic bag on the platform are relatively far apart so that the plastic bag opens to form a receiving opening. The square object is moved into the plastic bag through the receiving opening, and a pair of levers and a suction nozzle are moved simultaneously for implantation. Inside the accommodating mouth, continue to move the pair of tongue-shaped levers to open the accommodating mouth to form a straight-shaped gap, so that the suction nozzle guides negative pressure to establish a vacuum in the plastic bag, and moves a pair of pressure plates to close the straight-shaped gap and Carry out sealing. The present invention also provides a packaging device that implements the above method to improve the problem in the prior art that only manual operation can be used to vacuum package rectangular objects.

Description

Vacuum packaging method and device for square objects

technical field

The invention relates to a technology for vacuum packaging a square object with a plastic bag before shipping, and particularly relates to a vacuum packaging method and a device for a square object.

Background technique

Generally, products or objects are usually packaged in vacuum after the production is completed, and it is known that vacuum packaging generally relies on plastic bags to fill the objects, and then the air in the bag is extracted, and the plastic bag is sealed to complete the objects in the bag. vacuum packaging operations.

Here, taking the vacuum packaging operation of mobile phone panels before shipment as an example, it is explained that the panels will be placed in a tray one by one after production, and a plurality of panels that have been placed will be placed on a tray. The carrier trays are stacked to form a square body, and then plastic bags are used to accommodate the square objects, and vacuum packaging is performed. In addition to the above-mentioned trays, many square-shaped objects in the market also need to be vacuum-packed before shipment.

The operation of vacuum packaging objects is to prevent the objects from being prone to moisture problems during transportation after shipment, such as the influence of cold and hot temperatures during shipping and land transportation, or weather factors such as moisture and humidity. influences. Therefore, the objects need to be vacuum-packed before shipment to prevent the objects from being affected by moisture or damaged due to the above factors.

In the process of vacuum packaging, because the texture of the plastic bag is soft and easy to collapse, especially when the opening of the plastic bag needs to be opened to fill the process, it is not conducive to the control of the automatic machine. The process of vacuum packaging objects (especially square objects) in plastic bags is only done by manual operation.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to improve the problem of insufficient packaging efficiency for vacuum packaging of square objects in the prior art only by manual operation.

To this end, the present invention provides a method for vacuum packaging a square object, which is characterized in that it includes the following steps of vacuum packaging a square object for a quadrilateral plastic bag surrounded by three closed end edges and one open end edge :

A quadrilateral first adsorption area is constructed by using a plurality of first adsorption points, so that the plurality of first adsorption points in the first adsorption area correspond to the three closed end edges and the open end edge of the plastic bag , so that the plastic bag is moved to a working platform for pressing and positioning;

Use a plurality of second suction points to construct two corresponding quadrilateral second suction areas, and arrange the two corresponding second suction areas above and below the plastic bag on the working platform respectively, and then make The plurality of second adsorption points on the two corresponding second adsorption areas simultaneously adsorb the top surface and the bottom surface of the plastic bag relatively far away, and then open the open end edge of the plastic bag to form a mouth-shaped accommodating opening;

Move the square object into the plastic bag through the accommodating opening;

A pair of tongue-shaped levers and a tongue-shaped suction nozzle are moved synchronously to be implanted in the accommodating opening of the plastic bag, and the pair of tongue-shaped levers are successively moved to open the accommodating opening of the plastic bag to form a straight-line gap;

Make the suction nozzle continuously guide negative pressure into the plastic bag to capture the air in the plastic bag to establish a vacuum;

Move a pair of pressing plates and press down the surface of the plastic bag on the periphery of the in-line gap, and then seal the in-line gap;

Wherein, the two corresponding second adsorption areas are both smaller than the first adsorption area, and are located in the plastic bag positioning space on the working platform, and the two corresponding second adsorption areas are respectively contained in the first adsorption area. In the adsorption area, wherein the two corresponding second adsorption areas are respectively constructed by at least two corresponding second adsorption points to form a short side line, and the two short side lines correspond to each other and are adjacent to the plastic bag At the opening end of the pair of pressure plates, the pair of pressure plates and the lower pressure plate simultaneously move the pair of tongue-shaped levers and the suction nozzle away from the in-line gap, and at least one pressure plate in the pair of pressure plates is an electric heating plate.

In a further embodiment: a plastic bag placing area station and an object loading area station are also planned, the plastic bags are placed in the plastic bag placing area station to receive the adsorption of the plurality of first adsorption points, and the The work platform is located within the object loading zone station.

In a further embodiment: when the top surface and the bottom surface of the plastic bag are relatively far apart, the plurality of first adsorption points are made to release the plastic bag.

In a further embodiment, the first adsorption area is formed by at least two first adsorption points to form a long edge, and the long edge is adjacent to the opening end of the plastic bag.

In a further embodiment: the long edge and the short edge are collinear with each other.

In a further embodiment: it also includes using four picks to implant the mouth-shaped accommodating opening, and then using the four picking pieces to support the four end corners of the accommodating opening.

In a further embodiment, after the four paddles support the four end corners of the accommodating opening, there are also four clamping claws to clamp the four end corners of the accommodating opening.

In a further embodiment: the pair of tongue-shaped levers are implanted into the accommodating opening of the plastic bag at a distance relatively close to the suction nozzle, and open the container of the plastic bag at a distance relatively far from the suction nozzle set the mouth.

In a further embodiment, the distance relatively close to the suction nozzle and the distance relatively far from the suction nozzle are located on the same straight path, and the same straight path is called the first straight path.

In a further embodiment: the pair of tongue levers and the suction nozzle are located on the first straight path.

In a further embodiment, the pair of pressing plates presses up and down the surface of the plastic bag on the periphery of the in-line slot along a second straight path, and the second straight path and the first straight path are perpendicular to each other.

The above method can be achieved through a device technology. To this end, a specific embodiment of the present invention provides a vacuum packaging device for square objects, which is characterized by comprising:

A body, which is movable above a working platform;

A plurality of first adsorption points are arranged on the frame body, and the plurality of first adsorption points surround a quadrilateral first adsorption area, and the first adsorption area corresponds to the four end edges of a quadrilateral plastic bag, so The four end edges include three closed end edges and an open end edge;

A plurality of second adsorption points are respectively arranged on the frame body and in the working platform to form two corresponding quadrilateral second adsorption areas, and the plurality of second adsorption points on the frame body are formed around The second adsorption area is located in the first adsorption area, and the second adsorption area is smaller than the first adsorption area, and there are at least two second adsorption points in the two second adsorption areas respectively. A short side line is formed, and the two short side lines corresponding to the upper and lower sides are respectively adjacent to the opening end edge of the plastic bag;

A conveyor belt is arranged on one side of the working platform, and the other side of the conveyor belt is movably arranged with a carrier;

A pair of tongue-shaped levers are respectively slidably arranged on the carrier;

a tongue-shaped suction nozzle fixed between the pair of tongue-shaped levers on the stage; and

A pair of pressing plates are movable above and below the conveyor belt, and at least one pressing plate in the pair of pressing plates is an electric heating pressing plate.

In a further embodiment, the plastic bag is in a flat shape after being adsorbed by a plurality of first adsorption points in the first adsorption area.

In a further embodiment: it also includes a plastic bag loading area station and an object loading area station, and the plastic bag is placed in the plastic bag setting area station to receive the adsorption of the plurality of first adsorption points and form a flat surface. The working platform is moved to the holding position in a sheet-like manner, and the working platform is located in the object loading area station.

In a further embodiment: the conveyor belt is disposed between the plastic bag loading station and a vacuum packaging station, and the conveyor belt carries the plastic bags filled with square objects in the plastic bag loading station to move to the vacuum In the packaging area station, the carrier and the pair of pressing plates are respectively located in the vacuum packaging area station.

In a further embodiment, the rack body is configured to reciprocate between the plastic bag loading station and the object loading station.

In a further embodiment, the first adsorption area is formed by at least two first adsorption points to form a long edge, and the long edge is adjacent to the opening end of the plastic bag.

In a further embodiment: the long edge and the short edge are collinear with each other.

In a further embodiment, the two corresponding second adsorption surface regions respectively adsorb the top surface and the bottom surface of the plastic bag relatively away from each other, so as to open the open end edge, thereby forming a mouth-shaped accommodating opening.

In a further embodiment, one side of the working platform is movably configured with four picks, and the four picks are respectively embedded in the mouth-shaped accommodating opening and support the four end corners of the accommodating opening.

In a further embodiment, one side of the four paddles is respectively provided with a clamping claw for clamping the end corners.

In a further embodiment, the clamping jaw includes two arm portions, and a jaw that can be opened and closed is formed between the two arm portions.

In a further embodiment, a sliding table is disposed on one side of the working platform, and the square object is placed in the plastic bag through the accommodating opening after being carried by the sliding table.

In a further embodiment, the pair of tongue-shaped levers and the suction nozzle are driven by the carrier to be implanted into the accommodating opening of the plastic bag.

In a further embodiment: the pair of tongue-shaped levers are implanted into the accommodating opening of the plastic bag at a distance relatively close to the suction nozzle, and open the container of the plastic bag at a distance relatively far from the suction nozzle set the mouth.

In a further embodiment, the accommodating opening of the plastic bag is opened by the pair of tongue-shaped levers to form a straight slit.

In a further embodiment: the pair of tongue-shaped levers move along a first linear path to the distance relatively close to the suction nozzle or the distance relatively far from the suction nozzle.

In a further embodiment: the pair of tongue levers and the suction nozzle are located on the first straight path.

In a further embodiment, the pair of pressing plates presses up and down the surface of the plastic bag on the periphery of the zigzag slit along a second straight path, and the second straight path and the first straight path are perpendicular to each other.

According to the above technical means, the advantage of the present invention is that the automatic vacuum packaging operation for square objects can improve the vacuum packaging efficiency of the square objects before shipment from the production line.

The technical means of the above-mentioned methods and apparatuses and the specific implementation details of their performances are described with reference to the following embodiments and drawings.

Description of drawings

Fig. 1 is the step flow chart of the vacuum packing method of the square object of the present invention;

2a to 2m are schematic diagrams of actions for executing the method of FIG. 1 respectively;

3 is a perspective view of a vacuum packaging device for a square object of the present invention;

Fig. 4 is the top view of Fig. 3;

Fig. 5 is the side view of Fig. 3;

6a to 6j are respectively the schematic diagrams of the action of the vacuum packaging device for the square object of the present invention;

FIG. 7 is an enlarged schematic perspective view of the pick and the gripper in FIG. 3 .

Reference number description: 10 plastic bag; 11 closed end edge; 12 open end edge; 13 receiving port; 14 end corner; 15 top surface; 16 bottom surface; Area; 22 Long Edge; 30a, 30b Second Adsorption Point; 31a, 31b Second Adsorption Surface; 32a, 32b Short Edge; 41 Pick; 42 Claw; 42a Arm; 42b Actuator; 42c Clamp; 50a , 50b lever; 51a, 51b linear slide rail; 60 suction nozzle; 61 gas flow channel; 70a, 70b platen; 71a, 71b vertical pneumatic cylinder; 82 second biaxial movement mechanism; 82a, 82b horizontal driver; 83 third biaxial movement mechanism; 83a vertical driver; 83b horizontal driver; 91a plastic bag loading area station; 91b object loading area station; 91c vacuum packing area station; 92 working platform; 93 frame body; 94 carrier; 95 slide table; 96 conveyor belt; 97 square object; 98 support frame; Step description of the embodiment of S11.

Detailed ways

Please refer to FIG. 1 to illustrate the vacuum packaging method for a square object provided by the present invention, including performing the following steps S1 to S11 in sequence:

Step S1: Construct the first adsorption area

Please refer to FIG. 2a and FIG. 2b together to illustrate the planning of a plastic bag stocking station 91a and an object loading station 91b. A plurality of plastic bags 10 are placed in the plastic bag stocking station 91a. The plastic bags 10 are The plastic bag 10 is quadrilateral, and the quadrilateral plastic bag 10 is formed by three closed end edges 11 and an open end edge 12. The object loading station 91b is provided with a working platform 92 for positioning the plastic bag 10; the plastic bag device The plurality of plastic bags 10 placed in the material station 91a are sucked by the plurality of first suction points 20 and moved to the work platform 92 in the object loading station 91b, and the plurality of first suction points 20 are constructed A quadrangular first adsorption area 21 corresponding to the closed end edge 11 and the open end edge 12 of the plastic bag 10 is obtained; in the specific implementation, the plurality of first adsorption points 20 are arranged on the frame body 93 , the frame body 93 can move back and forth between the plastic bag loading area station 91a and the object loading area station 91b, and the plurality of first adsorption points 20 are driven by the frame body 93 to absorb the plastic bags 10 and move to the object On the working platform 92 in the loading zone station 91b.

Step S2: the first adsorption area adsorbs the plastic bag in a flat shape

Please refer to FIG. 2 c . It can be seen from the above description that the plastic bag 10 is easy to collapse due to its soft texture. In order to facilitate the control of the plastic bag 10 , the present invention constructs the corresponding The first suction surface area 21 of the closed end edge 11 and the open end edge 12 , so that the plurality of first suction points 20 in the first suction surface area 21 are correspondingly adsorbed on the three closed end edges 11 and the plastic bag 10 . The opening edge 12 makes the plastic bag 10 in a flat shape, which can effectively prevent the plastic bag 10 from collapsing, so as to facilitate the subsequent operation of opening the opening of the plastic bag 10 .

Step S3: Move the plastic bag to the working platform for holding and positioning

Please refer to FIG. 2d , which illustrates that after the plastic bag 10 is adsorbed by the plurality of first adsorption points 20 in the first adsorption area 21 , the plastic bag 10 is moved to the working platform 92 in a flat shape to be pressed and positioned, so that the The bottom surface 16 of the plastic bag 10 is in close contact with the working platform 92 .

Step S4: Constructing the second adsorption area

Referring to FIG. 2d again, it is illustrated that a plurality of second suction points 30a, 30b are respectively arranged above and below the plastic bag 10 on the working platform 92, and the plurality of second suction points 30a, 30b respectively form two The corresponding quadrilateral second adsorption areas 31a, 31b; in specific implementation, the plurality of second adsorption points 30a and the plurality of first adsorption points 20 are arranged on the same frame body 93, by virtue of the frame body 93 The driving of the plurality of second adsorption points 30a moves the plurality of second adsorption points 30a to the top of the plastic bag 10 on the working platform 92 in the object loading station 91b. The two corresponding second adsorption areas 31a, 31b are actually smaller than the first adsorption area 21. When the rack body 93 moves to the top of the work platform 92 in the object loading station 91b, the rack body In the plastic bag positioning space formed between 93 and the working platform 92, the two corresponding second adsorption areas 31a, 31b are respectively contained in the first adsorption area 21, in other words, the The plurality of second adsorption points 30a and 30b on the two second adsorption surface regions 31a and 31b can be reliably adsorbed to the plastic bag 10 . In addition, by virtue of the above-mentioned action of the first adsorption point 20 to adsorb the plastic bag 10 and move it to the working platform 92 to hold the plastic bag 10 , the plurality of second adsorption points 30 a and 30 b on the second adsorption areas 31 a and 31 b are connected to the plastic bag 10 . The top surface 15 and the bottom surface 16 of the plastic bag 10 are in close contact, so as to facilitate the subsequent plurality of second adsorption points 30 a and 30 b to adsorb the top surface 15 and the bottom surface 16 of the plastic bag 10 respectively.

Step S5: the second adsorption surface area is opened to absorb the plastic bag to form an accommodating opening

Please refer to FIG. 2e , which illustrates that the top surface 15 and the bottom surface 16 of the plastic bag 10 are respectively adsorbed by the plurality of second adsorption points 30a and 30b on the second adsorption surface regions 31a and 31b to move in a relatively distant direction. As can be seen from the above, The first adsorption area 21 constructed by the plurality of first adsorption points 20 corresponds to the closed end edge 11 and the open end edge 12 of the plastic bag 10 . More specifically, the plurality of first adsorption points A long edge 22 formed by the at least two first adsorption points 20 in the plastic bag 20 is adjacent to the open end edge 12 of the plastic bag 10 (as shown in FIG. 2b ). The second suction points 30a, 30b are used to open the open end edge 12 of the plastic bag 10. Therefore, at least two second suction points 30a, 30b among the plurality of second suction points 30a, 30b are constructed to form The two corresponding short side lines 32a, 32b are adjacent to the open end edge 12 of the plastic bag 10, that is, the long side line 22 and the two short side lines 32a, 32b are mutually collinear in implementation. The opening of the plastic bag 10 can be opened when the plurality of second suction points 30a and 30b on the two second suction surface regions 31a and 31b respectively absorb the top surface 15 and the bottom surface 16 of the plastic bag 10 and move in a relatively distant direction. The end edge 12 further forms a mouth-shaped accommodating opening 13 . In addition, when the plurality of second adsorption points 30a and 30b on the two second adsorption surface regions 31a and 31b respectively adsorb the top surface 15 and the bottom surface 16 of the plastic bag 10 and move in a relatively distant direction, the plurality of first adsorption points An adsorption point 20 releases the plastic bag 10 , so that the opening edge 12 of the plastic bag 10 can form the accommodating opening 13 .

Please refer to FIG. 2f and FIG. 2g together, it shows that the present invention further includes four picks 41. After the opening edge 12 of the plastic bag 10 is tilted to form the accommodating opening 13, the four picks 41 are used to implant the accommodating opening 13. The four end corners 14 of the accommodating port 13 are supported by the four end corners 14 of the accommodating port 13, and the four picks 41 support the four corners of the accommodating port 13. After the end corners 14, use the four clamping jaws 42 to clamp the four end corners 14 (as shown in FIG. 2g), which can effectively prevent the accommodating port 13 from being deformed or closed due to the influence of external force, so as to facilitate the subsequent The operation of filling square objects into the plastic bag 10 .

Step S6: Place the square object into the plastic bag through the receiving port

Please refer to FIG. 2h , which illustrates placing a square object into the plastic bag 10 through the accommodating opening 13 , and then stopping the four picks 41 and the four gripping claws 42 from supporting and clamping the plastic bag 10 . The opening 13 is opened, and the four picks 41 and the four clamping claws 42 are taken away from the accommodating opening 13 of the plastic bag 10 , so as to facilitate the subsequent sealing operation of the plastic bag 10 .

Step S7: Insert the lever and the suction nozzle into the accommodating opening of the plastic bag

Please refer to FIG. 2i, which illustrates that the plastic bag 10 lacks the support of the pick 41 and the clamping of the clamping jaws 42, and the soft texture of the plastic bag 10, etc., so that the accommodating opening 13 of the plastic bag 10 is irregular due to collapse A pair of tongue-shaped levers 50a, 50b and a tongue-shaped suction nozzle 60 are implanted into the accommodating port 13 of the plastic bag 10 in a synchronized manner, the pair of tongue-shaped levers 50a, 50b and the suction In practice, the mouth 60 is located on a straight path A, and the mouthpiece 60 is located between the pair of tongue-shaped levers 50a, 50b, and the pair of tongue-shaped levers 50a, 50b are relatively close to each other The distance h1 of the suction nozzle 60 is implanted in the accommodating opening 13 of the plastic bag 10 , and the distance h1 is actually smaller than the width of the accommodating opening 13 of the plastic bag 10 , so as to facilitate the pair of tongue-shaped levers 50a , 50b and the suction nozzle 60 are implanted in the accommodating opening 13 of the plastic bag 10 .

Step S8: The lever opens the accommodating opening of the plastic bag to form a straight-line gap

Referring to FIG. 2j, the pair of tongue-shaped levers 50a are described. 50b moves in a direction relatively away from the suction nozzle 60 along the linear path A, and then supports the accommodating opening 13 of the plastic bag 10, so that the accommodating opening 13 of the plastic bag 10 forms an in-line slit 17, and the pair of tongue-shaped dials In practice, the rods 50a and 50b open the accommodating opening 13 of the plastic bag 10 by a distance h2 relatively far from the suction nozzle 60 .

Step S9: The suction nozzle guides the negative pressure into the plastic bag to establish a vacuum

Please refer to FIG. 2k , it is illustrated that the suction nozzle 60 has a gas flow channel 61 . After the suction nozzle 60 is implanted in the accommodating port 13 of the plastic bag 10 , the suction nozzle 60 continuously guides the negative gas through the gas flow channel 61 . Press into the plastic bag 10 to capture the air in the plastic bag 10. Since the receiving port 13 of the plastic bag 10 is supported by the pair of tongue-shaped levers 50a, 50b to form an in-line gap 17, the in-line gap 17 is The area of 17 is smaller than the area of the accommodating opening 13 of the plastic bag 10 , so the suction nozzle 60 can reduce the outside air entering the plastic bag 10 when capturing the air in the plastic bag 10 , so as to facilitate the formation of a vacuum state in the plastic bag 10 .

Step S10: Press the platen to press the in-line gap

Please refer to FIG. 21 , which illustrates that a pair of pressing plates 70 a and 70 b are respectively arranged above and below the in-line slit 17 . The pair of pressing plates 70 a and 70 b can be pressed up and down along a straight path B to the periphery of the in-line slit 17 . and the pair of pressing plates 70a, 70b synchronously move the pair of tongue-shaped levers 50a, 50b and the suction nozzle 60 away from the in-line gap 17 at the moment of pressing up and down, so that the in-line gap 17 17 is tightly closed by the pressing of the pair of pressing plates 70a, 70b to prevent the outside air from entering the plastic bag 10 through the in-line slit 17, thereby maintaining the vacuum state in the plastic bag 10. The linear path B is implemented in are perpendicular to the straight path A.

Step S11: Seal the in-line gap

Please refer to FIG. 2m , which illustrates that after the pair of tongue-shaped levers 50a, 50b and the suction nozzle 60 are separated from the in-line gap 17, the in-line gap 17 is tightly closed by the pressing of the pair of pressing plates 70a, 70b , and then perform the sealing operation on the in-line gap 17 at a high temperature. In practice, at least one of the pair of pressing plates 70a and 70b is an electric heating plate, so as to facilitate the sealing operation after the in-line gap 17 is pressed together.

On the other hand, please refer to FIG. 3 , FIG. 4 and FIG. 5 together to illustrate that the present invention also provides a vacuum packaging device for square objects, so that the above-mentioned vacuum packaging method for square objects can be easily implemented. It can be seen from the above that the vacuum packaging device for square objects includes a plurality of first suction points 20, a plurality of second suction points 30a, 30b, a pair of levers 50a, 50b, a suction nozzle 60 and a pair of pressing plates 70a, 70b. in:

The plurality of first suction points 20 are arranged on the frame body 93, and the plurality of first suction points 20 can be moved along the X-Z axis by the driving of the frame body 93, and then capture the plastic bag by suction. The plastic bags 10 placed in the material station 91a are moved to the work platform 92 in the object loading station 91b. Further, the frame body 93 is configured on a first biaxial moving mechanism 81 in practice. The first biaxial moving mechanism 81 includes a vertical driver 81a and a horizontal driver 81b. The driver 81a can drive the frame body 93 to move along the Z axis, and the horizontal driver 81b can drive the frame body 93 to move along the X axis.

The plurality of second suction points 30a, 30b are respectively arranged on the frame body 93 and in the working platform 92, wherein the second suction point 30b on the frame body 93 can be driven by the frame body 93 to move to the object loading Above the work platform 92 in the station 91b, the second adsorption area formed by the second adsorption point 30a on the frame body 93 and the second adsorption point 30b in the work platform 92 corresponds to each other.

One side of the working platform 92 is movably configured with four strip-shaped paddles 41, the four paddles 41 can move along the X-Y axis, and are then implanted in the accommodating opening 13, and by virtue of the four paddles 41 Each of the picks 41 moves in a relatively distant direction to support the four end corners 14 of the accommodating opening 13 . Further, the four paddles 41 are configured on a second biaxial moving mechanism 82 in practice, and the second biaxial moving mechanism 82 includes two horizontal drivers 82a, 82b, wherein the horizontal The driver 82a can drive the paddle 41 to move along the Y-axis to be implanted in the accommodating port 13 , and the horizontal driver 82b can drive the paddle 41 to move along the X-axis to support the four end corners 14 of the accommodating port 13 . .

Please refer to FIG. 3 and FIG. 7 together to illustrate that one side of the four paddles 41 is respectively provided with a clamping claw 42 for clamping the end corner 14 , and the clamping claw 42 includes two arm portions 42 a and a driver 42 b , by virtue of the driving of the driver 42b, the two arms 42a are relatively separated to open the jaws 42c, or the two arms 42a are relatively close to close the jaws 42c (as shown in FIG. 6e ), thereby clamping the four dials The four end corners 14 of the accommodating opening 13 supported by the sheet 41 .

Please refer to FIG. 3 and FIG. 4 together, it is illustrated that a sliding table 95 is disposed on one side of the working platform 92 , and the sliding table 95 can be carried by the sliding table 95 to move to the top of the working platform 92 . When the plurality of second adsorption points 30a, 30b on the two second adsorption areas 31a, 31b respectively adsorb the top surface 15 and the bottom surface 16 of the plastic bag 10 and move in a relatively distant direction, the open end of the plastic bag 10 is opened After the side 12 forms the accommodating opening 13, the square object 97 can be placed into the plastic bag 10 through the accommodating opening 13 by means of the carriage by the sliding table 95 (as shown in FIG. 6f). Furthermore, the working platform 92 is provided with a support frame 98 . When the square object 97 is transported by the sliding table 95 and moved to the top of the working platform 92 and placed in the plastic bag 10 , the support frame 98 can move upwards. Move to support the square object 97 , so that the slide table 95 can return to the original position, so that the plastic bag 10 filled with the square object 97 can be sealed.

Please refer to FIG. 3 , FIG. 4 and FIG. 5 together to illustrate that the pair of tongue-shaped levers 50 a and 50 b are respectively slidably mounted on a carrier 94 , and the carrier 94 is movably arranged on a conveyor belt 96 . The conveyor belt 96 is disposed between the object loading station 91b and a vacuum packing station 91c, the conveyor belt 96 can carry the plastic bags 10 filled with the square objects 97 in the object loading station 91b to move to the vacuum In the packaging area station 91c, it is convenient for the subsequent sealing operation.

The pair of tongue-shaped levers 50 a and 50 b can be moved along the Y-Z axis by the drive of the carrier 94 , and then implanted in the accommodating opening 13 of the plastic bag 10 . Further, the stage 94 is configured on a third biaxial moving mechanism 83 in practice. The third biaxial moving mechanism 83 includes a vertical driver 83a and a horizontal driver 83b. The driver 83a can drive the carrier 94 to move along the Z axis, and the horizontal driver 83b can drive the carrier 94 to move along the Y axis. More specifically, since the plastic bag 10 is easy to collapse due to its soft texture, the position of the receiving port 13 of the plastic bag 10 is low, so the height of the pair of tongue levers 50a and 50b needs to be adjusted. It is convenient for the pair of tongue-shaped levers 50 a and 50 b to be implanted into the accommodating opening 13 of the plastic bag 10 .

The suction nozzle 60 is fixed on the carrier 94 and is located between the pair of tongue-shaped levers 50a and 50b. The suction nozzle 60 can be driven by the carrier 94 to be implanted into the container of the plastic bag 10 Put it in the mouth 13. Further, the suction nozzle 60 and the pair of tongue-shaped levers 50a, 50b are located on a straight path A, and the pair of tongue-shaped levers 50a, 50b can move toward the suction nozzle 60 along the straight path A The position is relatively close or relatively far away, and the straight path A is in practice parallel to the X-axis. More specifically, the pair of tongue-shaped levers 50a, 50b are respectively slid on the stage 94 via a linear slide rail 51a, 51b, so that the pair of tongue-shaped levers 50a, 50b can follow the straight path A moves back and forth, so as to be relatively close to or relatively far from the suction nozzle 60 .

The pair of pressing plates 70a, 70b are disposed above and below the conveyor belt 96 in the vacuum packaging station 91c. Above and below the accommodating opening 13 of the bag 10 (as shown in FIG. 6f ). The pair of pressing plates 70a, 70b are respectively connected with a vertical air cylinder 71a, 71b in implementation, when the accommodating port 13 of the plastic bag 10 is opened by the pair of tongue-shaped levers 50a, 50b to form an in-line gap After 17, the pair of pressing plates 70a, 70b are respectively driven by the vertical air cylinders 71a, 71b to press up and down the surface of the plastic bag 10 on the periphery of the in-line slot 17 along a straight path B. The straight path B is implemented The upper direction is parallel to the Z axis, that is to say, the straight line path B and the straight line path A are perpendicular to each other. In practice, at least one of the pair of pressing plates 70a and 70b is an electric heating plate. After the pair of pressing plates 70a and 70b are pressed together with the in-line gap 17, the in-line gap 17 is then sealed.

According to the above configuration, please continue to refer to FIGS. 6a to 6j , which sequentially disclose the action explanatory diagrams of the present invention, illustrating that the first suction point 20 on the frame body 93 captures the plastic bag storage area station in a negative pressure suction manner For the plastic bag 10 placed in the 91a (as shown in FIG. 6a ), the first suction point 20 on the frame 93 moves to the object loading station 91b after the plastic bag 10 is picked up, and the plastic bag 10 Press and position on the working platform 92 (as shown in FIG. 6b ), so that the second suction point 30a on the frame body 93 and the second suction point 30b in the working platform 92 are in close contact with the plastic bag 10 respectively. The second adsorption point 30a on the frame body 93 and the second adsorption point 30b in the working platform 92 respectively adsorb the top surface 15 and the bottom surface 16 of the plastic bag 10 to move in a relatively distant direction (as shown in FIG. 6c ), while the The first suction point 20 on the frame body 93 releases the plastic bag 10 to facilitate opening the open end edge 12 of the plastic bag 10 to form the accommodating opening 13 , and then, the four picks 41 are inserted into the accommodating opening 13 and move away from each other. move in the direction of the swivel (as shown in FIG. 6d ), and then support the four end corners 14 of the accommodating port 13 , and clamp the four end corners 14 by means of the clamping jaws 42 (as shown in FIG. 6e ), the square object 97 After being carried by the sliding table 95, the plastic bag 10 is placed into the plastic bag 10 through the receiving port 13, and the pair of tongue-shaped levers 50a, 50b and the suction nozzle 60 are driven by the carrier table 94 to be implanted into the plastic bag 10. Inside the accommodating port 13 (as shown in FIG. 6f ), the pair of tongue-shaped levers 50a and 50b move in a direction relatively away from the suction nozzle 60 , thereby propping up the accommodating port 13 of the plastic bag 10 so that the plastic bag The accommodating opening 13 of the 10 forms an in-line slit 17 (as shown in FIG. 6g ). The suction nozzle 60 uses negative pressure to capture the air in the plastic bag 10 to form a vacuum state in the plastic bag 10 (as shown in FIG. 6h ). ), then, the pair of pressing plates 70a, 70b respectively presses the surface of the plastic bag 10 around the in-line slit 17 from above and below (as shown in FIG. 6i ), and simultaneously the pair of tongue-shaped levers 50a, 70b 50b and the suction nozzle 60 are extracted from the in-line slit 17, so that the in-line slit 17 can be tightly closed by the pressing of the pair of pressing plates 70a and 70b. One of the pressing plates is an electric heating platen, which seals the plastic bag 10 at a high temperature (as shown in FIG. 6j ).

The above embodiments are only preferred embodiments of the present invention, but should not be construed as limiting the scope of the present invention.

Claims (27)

1. A method for vacuum packaging a square object, comprising the steps of performing the following steps of vacuum packaging a square object for a quadrilateral plastic bag surrounded by three closed end edges and an open end edge: A quadrilateral first adsorption area is constructed by using a plurality of first adsorption points, so that the plurality of first adsorption points in the first adsorption area correspond to the three closed end edges and the open end edge of the plastic bag , so that the plastic bag is moved to a working platform for pressing and positioning; Use a plurality of second suction points to construct two corresponding quadrilateral second suction areas, and arrange the two corresponding second suction areas above and below the plastic bag on the working platform respectively, and then make The plurality of second adsorption points on the two corresponding second adsorption areas simultaneously adsorb the top surface and the bottom surface of the plastic bag relatively far away, and then open the open end edge of the plastic bag to form a mouth-shaped accommodating opening; Move the square object into the plastic bag through the accommodating opening; A pair of tongue-shaped levers and a tongue-shaped suction nozzle are moved synchronously to be implanted in the accommodating opening of the plastic bag, and the pair of tongue-shaped levers are successively moved to open the accommodating opening of the plastic bag to form a straight-line gap; Make the suction nozzle continuously guide negative pressure into the plastic bag to capture the air in the plastic bag to establish a vacuum; Move a pair of pressing plates and press down the surface of the plastic bag on the periphery of the in-line gap, and then seal the in-line gap; Wherein, the two corresponding second adsorption areas are both smaller than the first adsorption area, and are located in the plastic bag positioning space on the working platform, and the two corresponding second adsorption areas are respectively contained in the first adsorption area. In the adsorption area, wherein the two corresponding second adsorption areas are respectively constructed by at least two corresponding second adsorption points to form a short side line, and the two short side lines correspond to each other and are adjacent to the plastic bag At the opening end of the pair of pressure plates, the pair of pressure plates and the lower pressure plate simultaneously move the pair of tongue-shaped levers and the suction nozzle away from the in-line gap, and at least one pressure plate in the pair of pressure plates is an electric heating plate. 2 . The vacuum packaging method for square objects according to claim 1 , wherein a plastic bag placing area station and an object loading area station are also planned, and the plastic bag is placed in the plastic bag placing area station to receive adsorption of the plurality of first adsorption points, and the working platform is located in the object loading area station. 3 . The vacuum packaging method for a square object according to claim 1 or 2 , wherein when the top surface and the bottom surface of the plastic bag are relatively far apart, the plurality of first adsorption points release the plastic bag. 4 . 4 . The vacuum packaging method for square objects as claimed in claim 1 , wherein the first adsorption area is formed by at least two first adsorption points to form a long edge, and the long edge is adjacent to the opening of the plastic bag. 5 . end edge. 5 . The vacuum packaging method for square objects according to claim 4 , wherein the long side line and the short side line are collinear with each other. 6 . 6 . The method for vacuum packaging a square object according to claim 1 , further comprising using four picks to implant the mouth-shaped accommodating opening, and then using the four picking pieces to support the accommodating opening. 7 . of the four corners. 7 . The vacuum packaging method for square objects according to claim 6 , wherein after the four picks support the four end corners of the accommodating opening, it further comprises four clamping claws to clamp the accommodating opening. 8 . of the four corners. 8 . The vacuum packaging method for square objects according to claim 1 , wherein the pair of tongue-shaped levers are implanted into the accommodating opening of the plastic bag at a distance relatively close to the suction nozzle, and a The accommodating opening of the plastic bag is opened by a distance relatively far from the suction nozzle. 9 . The vacuum packaging method for square objects according to claim 8 , wherein 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 as 9 . The first straight path. 10 . The vacuum packaging method for square objects according to claim 9 , wherein the pair of tongue-shaped levers and the suction nozzle are located on the first straight path. 11 . 11 . The vacuum packaging method for square objects according to claim 9 , wherein the pair of pressing plates presses up and down the surface of the plastic bag on the periphery of the in-line slit along a second linear path, and the second The straight path is perpendicular to the first straight path. 12. A vacuum packaging device for square objects, characterized in that, comprising: A body, which is movable above a working platform; A plurality of first adsorption points are arranged on the frame body, and the plurality of first adsorption points surround a quadrilateral first adsorption area, and the first adsorption area corresponds to the four end edges of a quadrilateral plastic bag, so The four end edges include three closed end edges and an open end edge; A plurality of second adsorption points are respectively arranged on the frame body and in the working platform to form two corresponding quadrilateral second adsorption areas, and the plurality of second adsorption points on the frame body are formed around The second adsorption area is located in the first adsorption area, and the second adsorption area is smaller than the first adsorption area. There are at least two second adsorption points in the two second adsorption areas respectively to form a Short side lines, and the upper and lower corresponding short side lines are respectively adjacent to the open end edge of the plastic bag; A conveyor belt is arranged on one side of the working platform, and the other side of the conveyor belt is movably arranged with a carrier; A pair of tongue-shaped levers are respectively slidably arranged on the carrier; a tongue-shaped suction nozzle fixed between the pair of tongue-shaped levers on the stage; and a pair of pressing plates, which are movable above and below the conveyor belt, and at least one pressing plate in the pair of pressing plates is an electric heating pressing plate; Wherein, the plastic bag is in a flat shape after being adsorbed by a plurality of first adsorption points in the first adsorption area, and a long edge is formed by at least two first adsorption points in the first adsorption area. The long edge is adjacent to the open end edge of the plastic bag. 13 . The vacuum packaging device for square objects according to claim 12 , further comprising a plastic bag setting station and an object loading station, and the plastic bag is placed in the plastic bag setting station for receiving. 14 . The plurality of first adsorption points are adsorbed and moved to the working platform to hold the position in a flattened manner, and the working platform is located in the object loading area station. 14 . The vacuum packaging device for square objects according to claim 13 , wherein the conveyor belt is disposed between the plastic bag placing station and a vacuum packaging station, and the conveyor belt carries the plastic bag placing station. 15 . The plastic bags filled with square objects in the area station are moved to the vacuum packaging area station, and the carrier and the pair of pressing plates are respectively located in the vacuum packaging area station. 15 . The vacuum packaging device for square objects according to claim 13 , wherein the frame body is configured to reciprocate between the plastic bag loading station and the object loading station. 16 . 16 . The vacuum packaging device for square objects according to claim 12 , wherein the long side line and the short side line are collinear with each other. 17 . 17 . The vacuum packaging device for square objects as claimed in claim 12 , wherein the two corresponding second adsorption areas respectively adsorb the top surface and the bottom surface of the plastic bag to be relatively away from each other to open the opening edge. 18 . , thereby forming a mouth-shaped accommodating port. 18. The vacuum packaging device for square objects according to claim 17, wherein one side of the working platform is movably configured with four picks, and the four picks are respectively implanted in the mouth-shaped accommodating openings, and supports the four end corners of the accommodating opening. 19 . The vacuum packaging device for square objects according to claim 18 , wherein one side of the four picks is respectively provided with a clamping jaw for holding the end corners. 20 . 20 . The vacuum packaging device for square objects according to claim 19 , wherein the clamping jaw comprises two arms, and a clamping opening that can be opened and closed is formed between the two arms. 21 . 21 . The vacuum packaging device for square objects as claimed in claim 17 , wherein a sliding table is disposed on one side of the working platform, and the square objects receive the carriage of the sliding table and are placed in the accommodating opening. 22 . inside a plastic bag. 22 . The vacuum packaging device for square objects according to claim 17 , wherein the pair of tongue-shaped levers and the suction nozzle are driven by the carrier to be implanted into the accommodating opening of the plastic bag. 23 . 23 . The vacuum packaging device for square objects as claimed in claim 22 , wherein the pair of tongue-shaped levers are implanted in the accommodating opening of the plastic bag at a distance relatively close to the suction nozzle, and the pair of tongue-shaped levers are relatively close to the suction nozzle. A distance away from the suction nozzle opens the accommodating opening of the plastic bag. 24 . The vacuum packaging device for square objects as claimed in claim 23 , wherein the accommodating opening of the plastic bag is opened by the pair of tongue-shaped levers to form a straight slit. 25 . 25 . The vacuum packaging device for square objects as claimed in claim 23 , wherein the pair of tongue-shaped levers move along a first linear path to the distance relatively close to the suction nozzle or the distance relatively far from the suction nozzle 25 . mouth distance. 26 . The vacuum packaging device for square objects according to claim 25 , wherein the pair of tongue-shaped levers and the suction nozzle are located on the first straight path. 27 . 27 . The vacuum packaging device for square objects according to claim 26 , wherein the pair of pressing plates presses up and down the surface of the plastic bag on the periphery of the zigzag slit along a second straight path, and the second straight path perpendicular to the first straight path.

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