CN114834709A

CN114834709A - Sealing method, sealing device and packaging equipment for packaging bag

Info

Publication number: CN114834709A
Application number: CN202210454396.1A
Authority: CN
Inventors: 石国成
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-02

Abstract

The invention discloses a sealing method, a sealing device and packaging equipment of a packaging bag, wherein materials are filled into the packaging bag to be sealed, and fall into a containing part; placing an empty part of a packaging bag to be sealed between a first shaping block and a second shaping block in the horizontal direction, supporting the bottom of the packaging bag to be sealed by a bag connecting seat, and enabling the first shaping block and the second shaping block to approach each other to limit the empty part and form a neck opening through which gas can pass; the containing part is inflated with gas through the neck opening, so that the containing part is expanded, the shoulder part of the expanded containing part is propped against the lower edges of the first shaping block and the second shaping block, and the bottom of the packaging bag to be sealed is propped against the bag receiving seat. Through the arrangement of the first shaping block, the second shaping block and the bag receiving seat, the distance between the bag receiving seat and the first shaping block and the distance between the bag receiving seat and the second shaping block can be adjusted according to the set height of the accommodating part; meanwhile, the gas can enter and the holding part can expand and shape conveniently; the function of the shaping containing part of the packaging bag sealing device is realized.

Description

Sealing method, sealing device and packaging equipment for packaging bag

Technical Field

The invention relates to the technical field of product packaging, in particular to a sealing method, a sealing device and packaging equipment for a packaging bag.

Background

A plurality of products are packaged in packaging bags, for example, tea leaves are taken as an example, the existing tea leaf packaging bag not only requires that the tea leaves are hermetically packaged in the packaging bag, but also requires that the appearance of the packaged tea leaf packaging bag is regular, and the packaging effect is good.

Enumerate a common tealeaves wrapping bag structure, its structure includes the top banding district on wrapping bag upper portion, the packing district in middle part and the bottom banding district that is located the wrapping bag bottom, and the packing district is square molding that is exactly the cuboid shape to the material of holding waiting to pack.

The prior packaging method mostly adopts a manual packaging method, and in recent years, a plurality of packaging machines for packaging tea leaves appear, so that the packaging efficiency is greatly improved, and the labor cost is reduced. However, the existing packaging machines can not shape the packaging bags conveniently and efficiently, so that the packaged products have poor aesthetic property, and meanwhile, the tea leaves occupy a large space of the whole box body when being arranged in the box for packaging due to the irregular edge sealing area shape of the bag bottom, and are difficult to be arranged in the packaging box together, so that the operation is inconvenient; meanwhile, the tea is not beautiful in package, so that the packaging yield is not high; or when in packaging, a hard lining is required to be added into the packaging bag to realize the packaging finished product with regular shape.

Disclosure of Invention

In view of the above problems, the present application provides a method for sealing a packaging bag, by which a package having a regular outer shape can be sealed efficiently.

In order to achieve the above object, the present application provides a method for shaping a packaging bag, comprising the steps of:

the materials are put into a packaging bag to be sealed, the materials fall into a containing part at the lower part of the packaging bag to be sealed, and the upper part of the packaging bag to be sealed is a vacant part;

placing the empty part of the packaging bag to be sealed between a first shaping block and a second shaping block in the horizontal direction, supporting the bottom of the packaging bag to be sealed by a bag connecting seat, enabling the first shaping block and the second shaping block to approach to each other so as to limit the empty part and form a neck opening through which gas can pass, and enabling the distance between the first shaping block and the second shaping block after the first shaping block and the second shaping block approach to each other to be smaller than the thickness of the containing part;

and gas is filled into the containing part through the neck opening, so that the containing part is expanded to shape the packaging bag to be sealed, the shoulder part of the expanded containing part is propped against the lower edges of the first shaping block and the second shaping block, and the bottom of the packaging bag to be sealed is propped against the bag receiving seat.

In some embodiments, when the empty portion of the packaging bag to be sealed is horizontally placed between the first shaping block and the second shaping block, the bag receiving seat and the first shaping block and the second shaping block perform relative approaching movement, so that the distance between the first shaping block and the second shaping block and the bottom of the bag receiving seat is equal to the height of the material in the receiving portion.

In some embodiments, an inflation head is positioned within the void above the first and second shaping blocks when the receptacle is inflated with a gas.

In some embodiments, when the container is filled with gas, the bottom surface of the inflation head abuts against the upper end of the neck opening.

In some embodiments, the inflation head is shaped to fit the interior wall of the hollow portion.

In some embodiments, when the receiving portion is inflated with gas, the shape of the receiving portion is defined from the outer wall of the receiving portion, such that the inner wall of the receiving portion after the shape is defined is adapted to the shape of the inflation head.

In some embodiments, after the materials are filled into the packaging bag to be sealed, the bag receiving seat and the material pressing block move relatively and closely, the material pressing block extends into the bag opening of the packaging bag to be sealed, the materials are pressed by applying pressure from top to bottom, and the material pressing block is an inflation head;

the bag receiving seat and the material pressing block relatively move away from each other, the material pressing block returns to the direction of the bag opening to the position above the first shaping block and the second shaping block, and the first shaping block and the second shaping block are close to each other to limit the hollow part and form a neck opening through which gas can pass.

In some embodiments, the bottom surface of the material pressing block is provided with a gas charging port for discharging gas. In some embodiments, after reforming the bag to be sealed, continuing to fill the receptacle with gas through the neck opening while the first and second reforming blocks grip the bag to be sealed.

In some embodiments, the first shaping block and the second shaping block are sealing blocks, and after the packaging bag to be sealed is shaped, the first shaping block and the second shaping block clamp the packaging bag to be sealed, so as to seal the packaging bag to be sealed, thereby forming a first sealing area.

In some embodiments, the first and second shaping blocks are seal blocks;

after the packaging bag to be sealed is shaped, the bag receiving seat, the first shaping block and the second shaping block move away from each other in the height direction; the first shaping block and the second shaping block are close to each other to clamp the empty part, the packaging bag to be sealed is sealed, and a second sealing area is formed.

In some embodiments, the bag receiving seat and the first and second shaping blocks perform a relative approaching movement in a height direction to press the receiving portion in the height direction when shaping.

In some embodiments, the gas filled into the packaging bag to be sealed by the material pressing block is inert gas.

In some embodiments, the bag receiving seat can move up and down in the height direction, and the first shaping block and the second shaping block are fixedly arranged in the height direction.

Different from the prior art, according to the technical scheme, the bag receiving seat can adjust the distance between the bag receiving seat and the first shaping block as well as the distance between the bag receiving seat and the second shaping block according to the set height of the accommodating part through the arrangement of the first shaping block, the second shaping block and the bag receiving seat; meanwhile, the first shaping block and the second shaping block are driven to approach each other, so that a neck opening is formed at the vacant part on the packaging bag to be sealed, and further, the gas can enter and the holding part can be expanded and shaped conveniently; thereby realizing the function of the shaping and containing part of the packaging bag sealing device.

The application also provides a wrapping bag closing device, includes:

the charging mechanism is used for charging materials into the packaging bag to be sealed, the materials fall on the lower part of the packaging bag to be sealed to form a containing part, and the upper part of the packaging bag to be sealed is a vacant part;

the bag receiving seat is used for supporting the bottom of a packaging bag to be sealed;

the shaping mechanism comprises a first shaping block and a second shaping block, and the first shaping block and the second shaping block are arranged in a reciprocating manner in the horizontal direction;

the bag receiving seat and the shaping mechanism are arranged in a reciprocating manner in the height direction;

a controller comprising a computer program; the computer program when executed by a processor implementing the steps of:

In some embodiments, the computer program when executed by the processor further performs the steps of:

when the empty part of the packaging bag to be sealed is horizontally arranged between the first shaping block and the second shaping block, the bag receiving seat and the first shaping block and the second shaping block move relatively close to each other, so that the distance between the first shaping block and the bottom of the bag receiving seat and the distance between the second shaping block and the bottom of the bag receiving seat are equal to the height of materials in the receiving part.

In some embodiments, further comprising:

the inflation head is arranged above the bag receiving seat, relatively reciprocates in the height direction with the bag receiving seat, and is used for inflating gas into the packaging bag to be sealed;

the computer program when executed by a processor further realizes the steps of:

when the holding part is filled with gas, the inflating head is arranged in the empty part above the first shaping block and the second shaping block.

when the containing part is filled with air, the bottom surface of the inflation head is abutted against the upper end of the neck opening.

the shape of the inflation head is matched with the inner wall of the hollow part.

when the accommodating part is filled with gas, the shape of the accommodating part is defined from the outer wall of the accommodating part, so that the inner wall of the accommodating part after the shape is defined is matched with the shape of the inflation head.

In some embodiments, further comprising:

the material pressing block is arranged above the bag receiving seat, relatively reciprocates in the height direction with the bag receiving seat, and is used for extruding materials in a packaging bag to be sealed;

after materials are filled into a packaging bag to be sealed, the bag receiving seat and the material pressing block relatively approach to move, the material pressing block extends into the bag opening of the packaging bag to be sealed, the materials are pressed by applying pressure from top to bottom, and the material pressing block is an inflation head;

In some embodiments, the bottom surface of the material pressing block is provided with a gas charging port for discharging gas.

after the packaging bag to be sealed is shaped, the neck opening is continuously filled with gas, and meanwhile, the packaging bag to be sealed is clamped by the first shaping block and the second shaping block.

In some embodiments, the first and second shaping blocks are seal blocks;

after the packaging bag to be sealed is shaped, the first shaping block and the second shaping block clamp the packaging bag to be sealed tightly, and the packaging bag to be sealed is sealed to form a first sealing area.

In some embodiments, the first and second shaping blocks are seal blocks;

during shaping, the bag receiving seat, the first shaping block and the second shaping block perform relative approaching movement in the height direction so as to extrude the accommodating part in the height direction.

the bag receiving seat can move up and down in the height direction, and the first shaping block and the second shaping block are fixedly arranged in the height direction.

Different from the prior art, according to the technical scheme, the lifting mechanism, the shaping mechanism, the bag receiving seat and the controller are arranged, so that the controller drives the shaping mechanism and the lifting mechanism to enable the shaping mechanism and the bag receiving seat to move close to or away from each other, and the function of shaping and containing part of the packaging bag sealing device is achieved.

The application also provides a packaging device which is provided with the packaging bag sealing device in any one of the above embodiments.

In some embodiments, the packaging apparatus is a tea leaf packaging machine.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

FIG. 1 is a view illustrating a structure of a package to be sealed according to an embodiment;

FIG. 2 is a view showing the structure of a first seal area and a second seal area according to the embodiment;

FIG. 3 is a view showing a structure of a first seal area according to the embodiment;

FIG. 4 is a view showing a structure of a second seal area according to the embodiment;

FIG. 5 is a view showing the structure of the empty part and the accommodating part in the embodiment;

FIG. 6 is a view showing the structure of a sealing apparatus for a packaging bag according to the embodiment;

FIG. 7 is a front view of the closure of the package according to the embodiment;

FIG. 8 is a flow chart of the material briquetting compaction material according to the embodiment;

FIG. 9 is a flow chart illustrating the relative movement of the pocket receiving seat and the material pressing block according to the embodiment;

FIG. 10 is a flow chart illustrating the first and second shaping blocks limiting a package to be sealed according to an embodiment;

FIG. 11 is a flow diagram illustrating the process of filling the receptacle with gas through the neck opening according to an embodiment;

FIG. 12 is an enlarged view of the embodiment shown in FIG. 11 at A;

FIG. 13 is a flow chart illustrating the formation of the first seal area according to one embodiment;

FIG. 14 is a flow chart illustrating the first and second shaping blocks of the embodiment spaced apart from the bag receiving receptacle;

FIG. 15 is a flowchart illustrating one embodiment of a process for forming the second seal region;

FIG. 16 is a second flowchart illustrating the second sealing region forming process according to the embodiment;

FIG. 17 is a diagram of an inflation port against a first shaping block and a second shaping block according to one embodiment.

Description of reference numerals:

10. a lifting mechanism;

11. a third power source; 12. a third gear; 13. a third rack;

20. a bag receiving seat;

21. a first side wall; 22. a second side wall; 23. a base plate;

31. a first shaping block; 32. a second shaping block; 33. a first power source; 34. a first gear; 35. a first rack; 36. a second power source; 37. a second gear; 38. a second rack; 39. a first slide rail; 310. a first slider;

311. a lower edge of the first shaping block;

321. the lower edge of the second shaping block;

40. material briquetting;

41. an inflation inlet;

51. a first sealing area; 52. a second seal area;

60. packaging bags to be sealed;

61. a vacant part; 62. a receptacle portion;

621. a shoulder of the receptacle;

70. and (3) feeding.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1 to 16, the present invention discloses a method for shaping a packaging bag, including the steps of:

putting the material 70 into the packaging bag 60 to be sealed, wherein the material 70 falls into the containing part 62 at the lower part of the packaging bag 60 to be sealed, and the upper part of the packaging bag 60 to be sealed is a vacant part 61;

the empty part 61 of the packaging bag 60 to be sealed is horizontally arranged between a first shaping block 31 and a second shaping block 32, a bag receiving seat 20 supports the bottom of the packaging bag 60 to be sealed, the first shaping block 31 and the second shaping block 32 are close to each other to limit the empty part 61 and form a neck opening through which gas can pass, and the distance between the close first shaping block 31 and the close second shaping block 32 is smaller than the thickness of the containing part 62;

the containing part 62 is inflated with gas through the neck opening, so that the containing part 62 is expanded to shape the packaging bag 60 to be sealed, the shoulder 621 of the expanded containing part is abutted against the lower edge 311 of the first shaping block and the lower edge 321 of the second shaping block, and the bottom of the packaging bag 60 to be sealed is abutted against the bag receiving seat 20.

It should be noted that, in the present application, the horizontal direction and the height direction are referred to the directions in the drawings; specifically, the height direction, i.e., the vertical direction in the drawings; the horizontal direction, i.e., the horizontal direction in the drawings.

Furthermore, the movement in the horizontal direction is not limited to the movement direction being only in a strict horizontal direction, and those skilled in the art should understand that, in the present application, the movement in the horizontal direction can achieve the purpose and the technical effect as long as the distance between the two in the horizontal direction can be close to or away from each other along with the movement of the two. In a particular implementation, it may be a movement in the horizontal plane only; or the inclined motion with certain inclination and motion component in the horizontal plane direction; the motion can also be performed in a manner of moving for a certain distance in the vertical direction and then moving for a certain distance in the horizontal plane direction, and the like, in short, in the whole motion process, the motion in the horizontal direction, which realizes the position movement in the horizontal plane direction, should be regarded as the motion in the horizontal direction described in the present patent application.

In this embodiment, the receptacle 62 refers to a portion of the package 60 to be sealed that expands when the package 60 to be sealed is inflated; the expanded receiving portion 62 has two situations, one is that all of the receiving portion 62 is the material 70, and only the gap between the materials 70 has gas; secondly, the containing part 62 is divided into an upper layer and a lower layer, wherein the upper layer is filled with gas, and the lower layer is filled with the material 70. In the present application, it is preferred that only the material 70 is present in the receptacle 62.

The empty part 61 is located above the accommodating part 62, and the empty part 61 is used for limiting, clamping or sealing the first shaping block 31 and the second shaping block 32.

It should be further noted that the size and height of the accommodating portion 62 and the empty portion 61 are determined according to the actual amount of the material 70; that is, the height of the receiving portion 62 is determined according to the amount of the material 70; of course, in some embodiments, it may be desirable to increase the height of the gas needed above the mass 70, as described above for the "two" case. In actual practice, the bag filling amount and the height of the upper layer gas (the height of the upper layer gas may not be set) are set in advance according to a program at the time of filling the bag, and the height of the accommodating portion 62 is determined. In the case of using the same package 60 to be sealed, the height of the receiving portion 62 varies according to the amount of the material 70. Further, the height of the accommodating portion 62 that has not yet been subjected to the inflation shaping work is higher than the height of the accommodating portion 62 after the inflation shaping work.

At the time of shaping, the packaging bag 60 to be sealed is inflated by air so that the upper portion of the containing part 62 is shaped into the shoulder 621 of the containing part, that is, the shoulder 621 of the containing part is formed by folding the bag body of the packaging bag higher than the set portion.

In the embodiment, the relative movement (the relative approaching movement or the relative departing movement) between the bag receiving seat 20 and the first and second shaping blocks 31 and 32 can be realized by driving the bag receiving seat 20 to move, and the relative movement between the bag receiving seat 20 and the first and second shaping blocks 31 and 32 can also be realized by driving the first and second shaping blocks 31 and 32 to move; of course, in some embodiments, the bag receiving seat 20 and the first and second shaping blocks 31 and 32 may be driven to move simultaneously to realize the relative movement therebetween.

And then the packing bag 60 to be sealed on the bag receiving seat 20 is moved so that the empty portion 61 of the packing bag 60 to be sealed is horizontally placed between the first and second shaping blocks 31 and 32. Preferably, the distance between the pocket receiving seat 20 and the first and second shaping blocks 31 and 32 is changed by driving the pocket receiving seat 20.

Of course, in other embodiments, the distance between the pocket seat 20 and the first and second shaping blocks 31 and 32 is fixed; namely, the bag receiving seat 20, the first shaping block 31 and the second shaping block 32 cannot move in the inflating and sealing process; the height of the accommodating part 62 is preset by an operator, and the equipment performs inflation shaping operation according to a preset program and the distance between the bag receiving seat 20 and the first shaping block 31 and the second shaping block 32; when other heights are required, the operator needs to stop the apparatus and then manually adjust the distance between the reception seat and the first and second shaped

blocks

31 and 32.

In the position limiting empty part 61, the first shaping block 31 and the second shaping block 32 are relatively close to each other, and the position limiting is tied to the finger, and the first shaping block 31 and the second shaping block 32 are only used for limiting the position of the packaging bag 60 to be sealed and preventing the packaging bag 60 to be sealed from being inclined so as to ensure that the packaging bag 60 to be sealed is vertically arranged; meanwhile, since the first and second shaping blocks 31 and 32 are only used to limit the position of the packing bag 60 to be sealed, that is, the first and second shaping blocks 31 and 32 are moved after approaching to a certain distance, so that there is a gap between the first and second shaping blocks 31 and 32, and the empty part 61 of the packing bag 60 to be sealed is placed in the gap.

The neck is formed by the first and second shaping blocks 31 and 32 approaching each other, and specifically, when the first and second shaping blocks 31 and 32 approach each other, the opening width of the region where the empty part 61 contacts the first and second shaping blocks 31 and 32 is gradually reduced, that is, the region where the empty part 61 contacts the first and second shaping blocks 31 and 32 is the neck of the packing bag 60 to be sealed. Therefore, the width of the neck opening is affected by the distance between the first and second shaping blocks 31 and 32, and is approximately equal to the distance between the first and second shaping blocks 31 and 32 since the thickness of the packing bag 60 to be sealed is thin.

It should be further noted that relatively close and relatively close means that the gap between two objects is smaller and smaller until the two objects touch each other; similarly, relatively far away and separated refers to an increasing gap between the two objects.

It should also be noted that, in order to form the shoulder 621 of the receiving portion, the distance between the first and second shaping blocks 31 and 32 is smaller than the width of the receiving portion 62 after inflation, so that the receiving portion 62 forms a shoulder.

Specifically, the gas enters the accommodating part 62 through the neck opening to expand the accommodating part 62, and the upward expanded part of the accommodating part 62 is butted by the lower edges of the first shaping block 31 and the second shaping block 32 to form a shoulder 621 of the accommodating part; similarly, the portion of the bag receiving seat 20 expanding downward is pressed against the bag receiving seat, so that the bottom of the packaging bag 60 to be sealed is flat.

Since the upper and lower sides of the receiving portion 62 are respectively limited by the first and second shaping blocks 31 and 32 and the bag receiving seat 20, the gas filled in the bag receiving portion 62 can be expanded only to the periphery of the receiving portion 62, so that the receiving portion 62 is expanded and shaped.

In practical use, the bag receiving seat 20 moves the packaging bag 60 to be sealed according to the height of the accommodating part 62, so that the first shaping block 31 and the second shaping block 32 are placed above the accommodating part 62; then the first and second shaped

blocks

31, 32 approach each other so that the empty portion 61 located above the housing portion 62 forms a neck through which the gas passes; the receiving portion 62 is inflated by gas through the neck opening, so that the receiving portion 62 is expanded to the periphery, and the purpose of shaping is achieved.

According to the technical scheme, the first shaping block 31, the second shaping block 32 and the bag receiving seat 20 are arranged, so that the bag receiving seat 20 can adjust the distance between the bag receiving seat 20 and the first shaping block 31 and the second shaping block 32 according to the set height of the accommodating part 62; meanwhile, the first shaping block 31 and the second shaping block 32 are driven to approach each other, so that the empty part 61 on the packaging bag 60 to be sealed forms a neck, and the gas can enter and the holding part 62 can be expanded and shaped conveniently; thereby performing the function of the reforming receptacle 62 of the package closure.

According to some embodiments of the present application, in order to reduce the volume of the sealed package bag while preventing the materials 70 from colliding with each other inside the package bag to affect the quality of the materials 70, referring to fig. 9, when the empty portion 61 of the package bag 60 to be sealed is horizontally disposed between the first and second shaping blocks 31 and 32, the bag receiving seat 20 and the first and second shaping blocks 31 and 32 perform a relative approaching movement such that the distance between the first and second shaping blocks 31 and 32 and the bottom of the bag receiving seat 20 is equal to the height of the materials 70 inside the empty portion 62.

The distance between the bag receiving seat 20 and the first and second shaping blocks 31 and 32 is adjusted according to the height of the set receiving part 62 so that only the material 70 is contained in the receiving part 62.

Specifically, the distance between the bag receiving seat 20 and the first and second shaping blocks 31 and 32 is the same as the height of the material 70 in the accommodating part 62, that is, only the material 70 is in the accommodating part 62; after the sealing of the sealing bag 60, the material 70 will fill the container 62; during transport or movement of the bag, the materials 70 in the receptacle 62 will not move relative to each other, thereby reducing the volume of the bag after sealing and preventing the materials 70 from colliding with each other.

Further, when the bag receiving seat 20 supports the bag 60 to be sealed to move, the bag receiving seat 20 enables the upper edge of the material 70 to coincide with the lower edge 311 of the first shaping block and the lower edge 321 of the second shaping block.

According to some embodiments of the present application, in order to improve the inflation efficiency, a large amount of gas is inflated into the accommodating portion 62, and referring to fig. 9 to 11, when the accommodating portion 62 is inflated with gas, the inflation head is placed in the empty portion 61 above the first and second shaping blocks 31 and 32.

The inflation head is used for inflating gas into the packaging bag 60 to be sealed so as to expand and shape the containing part 62 of the packaging bag 60 to be sealed, when the inflation operation is performed, the inflation head is placed in the empty part 61, and the inflation port 41 of the inflation head is arranged towards the neck.

In practical operation, the inflation head can inflate the packaging bag 60 to be sealed at the following stage, firstly, when the packaging bag 60 to be sealed is placed on the bag receiving seat 20, the inflation head inflates air into the packaging bag 60 to be sealed, and meanwhile, the first shaping block 31 and the second shaping block 32 approach each other to limit the empty part 61 until the containing part 62 is expanded and shaped; secondly, after the first shaping block 31 and the second shaping block 32 finish the limiting operation of the empty part 61, the inflation head inflates air to the neck. Preferably, the inflation head performs the inflation operation after the first and second shaping blocks 31 and 32 perform the limiting operation.

Of course, in some embodiments, the inflation head may be positioned within the neck opening, i.e., the inflation head extends into the neck opening to directly inflate the receptacle 62 with gas, and further, the width of the neck opening is greater than the width of the inflation head. When the inflation shaping operation is finished, the inflation head retreats from the neck opening, and the inflation head continues to inflate.

According to some embodiments of the present application, in order to further improve the efficiency of the inflation and plastic surgery and enable the gas to be accurately filled into the accommodating portion 62, referring to fig. 17, when the accommodating portion 62 is filled with the gas, the bottom surface of the inflation head is abutted against the upper end of the neck opening.

In this embodiment, the inflation inlet 41 of the inflation head is disposed toward the neck, and the inflation inlet 41 abuts on the upper side of the neck, so that the gas ejected from the inflation head can directly enter the middle accommodating portion 62 through the neck, thereby preventing the gas from escaping from other parts.

It should be further noted that the cross section of the inflation inlet 41 on the inflation head may be circular, or may be rectangular, which is matched with the neck opening, and the rectangular neck opening can prevent the gas from overflowing, further improving the inflation efficiency.

In practical use, after the first shaping block 31 and the second shaping block 32 approach each other to complete the limiting operation, the inflation head moves to above the neck opening, so that the bottom surface of the inflation opening 41 abuts against the first shaping block 31 and the second shaping block 32, and then the accommodation portion 62 is inflated with gas, so that the accommodation portion 62 is expanded and shaped.

According to some embodiments of the present application, in order to prevent the inflation gas from escaping from between the inflation head and the side wall of the hollow portion 61, and to improve the inflation efficiency, referring to fig. 17, the inflation head is shaped to fit the inner wall of the hollow portion 61.

In this embodiment, the shape of the inflation head is matched with the shape of the inner wall of the empty part 61, that is, the edge of the inflation head contacts with the side wall of the empty part 61, and at this time, the inflation head does not change the shape of the empty part 61 (that is, the inflation head does not apply an outward force to the side wall of the empty part 61), so that the inner wall of the empty part 61 is tightly attached to the edge of the inflation head, the gas filled into the accommodating part 62 from the inflation port 41 is not easily discharged from between the inflation head and the inner wall of the empty part 61, and at this time, the filled gas can only enter the accommodating part 62 through the neck.

According to some embodiments of the present application, when the accommodating portion 62 is inflated, the shape of the accommodating portion 61 is defined from the outer wall of the accommodating portion 61, so that the inner wall of the accommodating portion 61 after being defined in shape is matched with the shape of the inflation head.

Specifically, in this embodiment, the inflation head is disposed within the hollow portion, and the cross-sectional area of the inflation head is smaller than the cross-sectional area of the hollow portion. When the inflation head inflates gas into the package to be sealed, the gas easily escapes from a gap between the inflation head and the package to be sealed, so that the inflation speed is reduced.

Therefore, when the inflation head is arranged in the vacant part and the inflation operation is carried out, the vacant part is clamped on the inflation head by the inflation head pressing block matched with the inflation head, and the inner wall of the vacant part is tightly attached to the inflation head so as to prevent the inflated gas from escaping from the gap between the vacant part and the inflation head; when the inflation operation is finished or the inflation shaping is finished, the air inflation head pressing block releases the vacant part, and the vacant part is not attached to the air inflation head any more.

Of course, in other embodiments, the cross-sectional area of the inflation head may be greater than the cross-sectional area of the clearance portion 61, wherein the inflation head expands the clearance portion 61 such that the side wall of the clearance portion 61 abuts against the edge of the inflation head; specifically, when the inflation head is arranged in the empty part, the inflation head gradually becomes larger, so that the outer wall of the inflation head is tightly attached to the inner wall of the empty part, and the inflated gas is prevented from escaping from a gap between the empty part and the inflation head. Specifically, the outer wall of the inflation head can be provided with a bag body for inflation and deflation, and the bag body expands when the inflation head is inflated with air; when the air is not filled, the bag body is not contacted with the empty part.

According to some embodiments of the present application, in order to reduce the volume of the material 70, and at the same time, in order to reduce the volume of the sealed package bag, and prevent the material 70 from colliding with each other in the package bag to affect the quality of the material 70, referring to fig. 3, after the material 70 is loaded into the package bag 60 to be sealed, the bag receiving seat 20 and the material pressing block 40 move relatively close to each other, the material pressing block 40 is inserted from the mouth of the package bag 60 to be sealed, a top-down pressure is applied to the material 70 to press the material 70, and the material pressing block 40 is an inflation head;

the bag receiving seat 20 and the material pressing block 40 move away from each other relatively, the material pressing block 40 retracts to the direction of the opening of the bag above the first shaping block 31 and the second shaping block 32, and the first shaping block 31 and the second shaping block 32 are close to each other to limit the hollow part 61 and form a neck opening through which gas can pass.

In this embodiment, the material block 40 is an inflation head, and the material block 40 can be used for inflating gas and compacting the material 70; specifically, after the materials 70 are bagged, a large number of gaps exist among the materials 70, the occupied volume of the materials 70 is large, and the material pressing block 40 presses the loose materials 70, so that the gaps among the materials 70 are reduced.

Further, when the material 70 is compacted, the material pressing block 40 will move away from the material 70, so that the first shaping block 31 and the second shaping block 32 can approach each other and limit the packaging bag 60 to be sealed; then the material block 40 is aerated. Of course, in some embodiments, the material pieces 40 may be aerated simultaneously during the compaction process, where aeration is primarily used to evacuate air from the interstices of the material 70.

It should be noted that the distance of the movement of the material block 40 away from the material 70 is equal to the height of the higher shaping block in the first shaping block 31 and the second shaping block 32.

Of course, in other embodiments, the material block 40 may be used only for compacting the material 70, and after the material block 40 completes the compacting operation, the material block 40 is pushed out from the packaging bag 60 to be sealed, and then the inflation head enters the packaging bag 60 to be sealed, and performs the inflation shaping operation.

It should be further noted that, in the present embodiment, the material pressing block 40 and the bag receiving seat 20 perform relative movement in the height direction; specifically, the material pressing block 40 may move and the bag receiving seat 20 may be stationary, or the material pressing block 40 may move and the bag receiving seat 20 may move.

According to some embodiments of the present application, referring to fig. 17, the bottom surface of the material compact 40 is provided with a gas filling port 41 for gas discharge.

In this embodiment, the gas filling port 41 on the material pressing block 40 is disposed toward the neck, and the gas filling port 41 is abutted against the upper side of the neck, so that the gas ejected from the material pressing block 40 can directly enter the middle accommodating portion 62 through the neck, thereby preventing the gas from escaping from other parts.

It should be further noted that the cross section of the charging port 41 on the material pressing block 40 may be circular, or may be rectangular, which is matched with the neck, and the rectangular neck can avoid the gas from overflowing, further improving the charging efficiency.

In practical use, after the first shaping block 31 and the second shaping block 32 approach each other to complete the limiting operation, the inflation head moves to the upper part of the neck, so that the bottom surface of the material pressing block 40 abuts against the first shaping block 31 and the second shaping block 32, and then the accommodating part 62 is inflated with gas, so that the accommodating part 62 is expanded and shaped.

According to some embodiments of the present application, in order to improve the ability of the pouch to protect the material 70 and to prevent the escape of gas from the inflated receptacle 62, referring to fig. 11 to 13, after the pouch 60 to be sealed is reshaped, the receptacle 62 is continuously inflated through the neck, and the first and second reshaping blocks 31 and 32 clamp the pouch 60 to be sealed.

After the accommodating part 62 completes the inflation shaping operation, the accommodating part 62 is shaped and has a certain shape; the gas will continue to pass into the receptacle 62 while the first and second shaped

blocks

31, 32 are brought closer together and clamp the bag 60 to be sealed to prevent the gas in the receptacle 62 from escaping; then the inflation head stops inflating. That is, after the receiving portion 62 is inflated to form the shape, the neck opening is continuously inflated with the gas to keep the receiving portion 62 in the expanded state, and when the receiving portion 62 is in the expanded state, the first shaping block 31 and the second shaping block 32 clamp the neck opening, so that the gas cannot enter and exit through the neck opening, and the receiving portion 62 is in the sealed state.

Specifically, in the present embodiment, when the accommodating portion 62 is inflated and shaped, the accommodating portion 62 is expanded; when the packaging bag is impacted by external force, the materials 70 such as tea leaves and the like in the containing part 62 can be protected by the gas; meanwhile, the packaging bag has certain elasticity and can recover automatically when being impacted.

According to some embodiments of the present application, referring to fig. 13, the first shaping block 31 and the second shaping block 32 are sealing blocks, and after shaping the package 60 to be sealed, the first shaping block 31 and the second shaping block 32 clamp the package 60 to be sealed, and seal the package 60 to be sealed to form a first sealing area 51.

The sealing tying means that the first shaping block 31 and the second shaping block 32 are sealing blocks, and the first shaping block 31 and the second shaping block 32 move relatively close to each other until the first shaping block 31 and the second shaping block 32 are attached to each other and stay for a period of time, and then the first shaping block 31 and the second shaping block 32 move separately.

When the first shaping block 31 and the second shaping block 32 perform the sealing operation, the first shaping block 31 and the second shaping block 32 approach each other, and the first shaping block 31 and the second shaping block 32 are separated after a certain time.

It should be further noted that in some embodiments, a shaping block and a sealing block may be separately disposed in the device to implement the shaping function and the sealing function, respectively. However, in a preferred embodiment, the seal block may be used as a shaping block, and the seal block may be a seal block of different forms such as a heat seal block or an ultrasonic seal block, as long as the sealing function can be achieved. In the preferred embodiment, the sealing block and the shaping block are combined into a whole, so that the structure is simplified, the cost is reduced, and part of the existing sealing device and packaging equipment can be transformed and upgraded into the sealing device and the packaging equipment described in the embodiment.

In this embodiment, after the inflation shaping operation is completed, the first shaping block 31 and the second shaping block 32 perform a sealing operation on the package 60 to be sealed.

According to some embodiments of the present application, with reference to fig. 14 to 16, the first and second shaping blocks 31 and 32 are closed blocks;

after the packaging bag 60 to be sealed is shaped, the bag receiving seat 20 and the first shaping block 31 and the second shaping block 32 perform relative distance movement in the height direction; the first shaping block 31 and the second shaping block 32 approach each other to clamp the empty portion 61, and seal the package 60 to be sealed, forming a second sealing region 52.

The second sealing region 52 is formed in the same principle as the first sealing region 51; in the present application, the second sealing region 52 may be formed directly, or the second sealing region 52 may be formed after the first sealing region 51 is formed.

The second sealing area 52 is formed by the bag holder 20 moving away from the first and second shaping blocks 31 and 32 in the height direction, and is sealed by the first and second shaping blocks 31 and 32.

It should be noted that the first sealing area 51 is disposed on the empty portion 61 and adjacent to the accommodating portion 62, and after the sealing operation, the first sealing area 51 is formed above the accommodating portion 62, please refer to fig. 2 and 3. Similarly, the second sealing area 52 is disposed on the empty portion 61, and after the sealing operation is performed again, the second sealing area 52 is formed on the empty portion 61, and the second sealing area 52 is closer to the bag mouth than the first sealing area 51, please refer to fig. 2 and 4.

Preferably, referring to fig. 2 and 5, the second sealing area 52 is disposed on the edge of the empty portion 61 away from the accommodating portion 62, and the first sealing area 51 and the second sealing area 52 have a certain width. The package 60 to be sealed may be sealed once or twice.

The bag receiving base 20 is movable up and down in the height direction, and the first shaping block 31 and the second shaping block 32 are fixedly disposed in the height direction.

In the present application, it is preferable that the first and second shaping blocks 31 and 32 are fixedly provided in the height direction; the first shaping block 31 and the second shaping block 32 cannot move in the height direction; that is, in the present embodiment, the movement of the package bag 60 to be sealed is realized by controlling the movement of the bag receiving base 20 in the height direction.

According to some embodiments of the present application, the bag receiving seat 20 and the first and second shaping blocks 31 and 32 perform a relative approaching movement in a height direction to press the receiving portion 62 in the height direction when shaping.

In this embodiment, the bag receiving seat 20 and the first and second shaping blocks 31 and 32 perform a relative approaching movement in the height direction to press the accommodating portion 62, so that the accommodating portion 62 is shaped into a square structure. That is, the distance between the first and second shaping blocks 31 and 32 and the bag receiving seat 20 is reduced, and the receiving portion 62 is pressed.

At this time, since the top and the bottom of the accommodating part 62 are respectively limited by the first shaping block 31 and the second shaping block 32 and the bag receiving seat 20, the gas in the accommodating part 62 is expanded only to the periphery, and the accommodating part 62 is further shaped.

The gas filled into the packaging bag 60 to be sealed by the material pressing block 40 is inert gas. The inert gas in this embodiment is a gas that does not react with the material 70, and may be nitrogen, carbon dioxide, or a rare gas.

In summary, in the present application, the whole process includes that the packaging bag to be sealed with the material is placed on the bag receiving seat, and the bag receiving seat drives the empty part of the packaging bag to be sealed to be placed between the first shaping block and the second shaping block in the horizontal direction.

The material pressing block moves downwards along the height direction and extends into the packaging bag to be sealed, and then the material pressing block continues to extend into the packaging bag to be sealed; then the material briquetting presses the material in the wrapping bag of waiting to seal, and then the material briquetting moves towards the direction of keeping away from and connecing the bag seat, and does not follow and wait to seal and move out in the wrapping bag.

The first shaping block and the second shaping block are close to each other to limit the empty part, a neck opening through which gas can pass is formed, and the inflating opening on the material pressing block inflates the accommodating part through the neck opening, so that the accommodating part expands, and the packaging bag to be sealed is shaped.

After the air inflation shaping is finished, the material pressing block continues to inflate, the first shaping block and the second shaping block move relatively close to each other again, the packaging bag to be sealed is clamped tightly, the packaging bag to be sealed is sealed, and a first sealing area is formed.

And then the material pressing block stops inflating and moves out of the packaging bag to be sealed.

The bag receiving seat and the shaping mechanism move away from each other relatively until one end of the empty part, which is far away from the accommodating part, is arranged between the first shaping block and the second shaping block, and the first shaping block and the second shaping block perform sealing operation on the package again to form a second sealing area.

Referring to fig. 1 to 17, the present application further provides a package sealing device for performing the above steps, and the package sealing device includes:

the charging mechanism is used for charging the material 70 into the packaging bag 60 to be sealed, the material 70 falls on the lower part of the packaging bag 60 to be sealed to form a containing part 62, and the upper part of the packaging bag 60 to be sealed is a vacant part 61;

the bag receiving seat 20 is used for supporting the bottom of the packaging bag 60 to be sealed;

the shaping mechanism comprises a first shaping block 31 and a second shaping block 32, and the first shaping block 31 and the second shaping block 32 are arranged in a reciprocating manner in the horizontal direction;

the bag receiving seat 20 and the shaping mechanism are arranged in a reciprocating manner in the height direction;

a controller comprising a computer program; the computer program when executed by a processor implements the steps of:

The shaping mechanism is a mechanical device for sealing and shaping the packaging bag filled with the product, and can be used for sealing the packaging bag 60 to be sealed and also can be used for limiting the packaging bag 60 to be sealed. After the product is packed into the packing bag, in order to seal and store the product, the product quality is kept, the product loss in the bag is avoided, and meanwhile, external air is prevented from entering the bag body, so that the packing bag needs to be sealed, and the operation is completed through a shaping mechanism.

The shaping mechanism is a hot-press sealing machine, the packaging bag 60 to be sealed adopts a heat-seal bag, and the shaping mechanism carries out hot-press sealing on the heat-seal bag.

The bag receiving seat 20 is used for supporting the packaging bag 60 to be sealed. The bag holder 20 is made of metal, alloy or plastic.

The bag receiving seat 20 is arranged below the shaping mechanism, and the bag receiving seat 20 and the shaping mechanism can move relatively in the height direction; that is, when the bag receiving seat 20 supports the packaging bag 60 to be sealed, the packaging bag 60 to be sealed and the shaping mechanism perform relative movement in the height direction to adjust the sealing or limiting height.

Referring to fig. 14 to 17, the bag holder 20 includes: the first side wall 21, the second side wall 22 and the bottom plate 23, the first side wall 21 and the second side wall 22 are oppositely arranged on the bottom plate 23. The first side wall 21, the second side wall 22 and the bottom plate 23 form a groove, two ends and the top of the groove are provided with openings, and a packaging bag 60 to be sealed is put into the groove from the opening at the top of the groove; i.e. the packaging bag is placed in the recess. When the inflation operation is carried out, the bottom of the groove, the lower edge 311 of the first shaping block and the lower edge 321 of the second shaping block abut against the accommodating part 62, and the gas in the accommodating part 62 can only expand towards the side wall of the accommodating part 62, so that the purpose of inflation shaping is achieved.

The first side wall 21 and the second side wall 22 of the bag receiving seat 20 are folded outwards, so that the bag receiving seat 20 can receive the bag 60 to be sealed, which falls on the bag receiving seat. Specifically, when the package bag 60 to be sealed falls, the package bag 60 to be sealed may not be aligned with the opening at the top of the bag receiving base 20 because the opening at the top of the bag receiving base 20 is small; the outward folding design can effectively enlarge the opening area, and the packaging bag 60 to be sealed falls to touch the folding area and slides into the bag receiving seat 20 under the guidance of the folding area.

In the present embodiment, in order to realize the relative movement between the shaping mechanism and the bag receiving seat 20, the present application will provide a lifting mechanism 10, wherein the lifting mechanism 10 is used for driving the shaping mechanism and/or the bag receiving seat 20; specifically, the lifting mechanism 10 is connected to the reshaping mechanism and/or the bag receiving base 20. Preferably, the lifting mechanism 10 is connected with the bag receiving base 20, drives the bag receiving base 20 to reciprocate up and down below the shaping mechanism, and the packaging bag 60 to be sealed reciprocates up and down under the driving of the bag receiving base 20.

When the lifting mechanism 10 drives the bag receiving seat 20 to ascend, the bag receiving seat 20 is relatively close to the shaping mechanism, and when the lifting mechanism 10 drives the bag receiving seat 20 to descend, the bag receiving seat 20 is relatively far away from the shaping mechanism.

And the controller is used for taking charge of the process management of the program. The controller fetches each instruction from the memory in turn according to a program programmed in advance by a user, puts the instruction in an instruction register, determines what operation should be performed through instruction decoding (analysis), and then sends a micro-operation control signal to a corresponding component according to a determined time sequence through the operation controller. The computer program in the embodiments may be stored in a computer readable storage medium in the controller, the storage medium being an electronic component having a data storage function, including but not limited to: the computer-readable medium may also be a computer-readable medium, such as RAM, ROM, magnetic disk, magnetic tape, optical disk, flash memory, usb disk, removable hard disk, memory card, or memory stick.

The charging mechanism is used for charging the material 70 into the packaging bag 60 to be sealed, the material 70 falls into the containing part 62 of the packaging bag 60 to be sealed, and the vacant part 61 is arranged above the containing part 62;

in the present application, the controller is electrically connected to the lifting mechanism 10 and the shaping mechanism, respectively. The controller drives the lifting mechanism 10 to control the distance between the bag receiving seat 20 and the shaping mechanism, and further control the positions of the first sealing area 51 and the second sealing area 52. The controller drives the shaping mechanism to control the shaping mechanism to perform sealing operation, limiting operation or clamping operation.

It is further explained that the function of inflating gas can be realized through an inflation head, and the inflation head can be a pipeline connected with external equipment; when the inflation operation is required, the pipeline extends into the packaging bag 60 to be sealed, and the inflation operation is performed.

According to the technical scheme, the lifting mechanism 10, the shaping mechanism, the bag receiving seat 20 and the controller are arranged, so that the controller drives the shaping mechanism and the lifting mechanism 10 to enable the shaping mechanism and the bag receiving seat 20 to move close to or away from each other, and the shaping and containing part 62 of the packaging bag sealing device is achieved.

Referring to fig. 6 and 7, in this implementation, the computer program when executed by the processor further implements the steps of:

when the empty portion 61 of the packing bag 60 to be sealed is horizontally disposed between the first and second shaping blocks 31 and 32, the bag receiving seat 20 and the first and second shaping blocks 31 and 32 perform a relative approaching movement such that the distance between the first and second shaping blocks 31 and 32 and the bottom of the bag receiving seat 20 is equal to the height of the material 70 in the receiving portion 62.

In order to achieve displacement of the first and second shaping blocks 31 and 32 in the horizontal direction, the shaping mechanism further comprises: a first power source 33, a first gear 34, and a first rack 35; the first gear 34 is disposed at the output end of the first power source 33, the first gear 34 is engaged with the first rack 35, and the first rack 35 is connected to the first shaping block 31.

In practical operation, the first power source 33 drives the first gear 34 to rotate, and the first gear 34 drives the first rack 35 to translate in the horizontal direction, so as to drive the first shaping block 31 to horizontally displace.

Referring to fig. 6 to 7, similarly, the shaping mechanism further includes: a second power source 36, a second gear 37, and a second rack 38; a second gear 37 is disposed at the output end of the second power source 36, the second gear 37 is engaged with a second rack 38, and the second rack 38 is connected to the second shaping block 32.

In practice, the second power source 36 drives the second gear 37 to rotate, and the second gear 37 drives the second rack 38 to translate in the horizontal direction, so as to drive the second shaping block 32 to move horizontally.

In order to improve the stability of the first shaping block 31 and the second shaping block 32 during operation and prevent the first shaping block 31 and the second shaping block 32 from deviating from the preset track when moving, please refer to fig. 6, the shaping mechanism further includes: a first slide rail 39 and a first slider 310; the number of the first sliding blocks 310 is two, and the two first sliding blocks 310 are respectively connected with the first shaping block 31 and the second shaping block 32; the number of the first slide rails 39 is two, each first slide rail 39 is slidably connected to one first slide block 310, and each first slide rail 3939 is fixed to the housing of the device.

Since the two first sliding blocks 310 and the first sliding rail 39 have the same structure and the connection manner between the two first sliding blocks 310 and the first gear 34 or the second gear 38 is the same, the first sliding block 310 of the first sliding rail 39 will be described below by taking the first gear rack 35 as an example.

The first slide rail 39 and the first slide block 310 are adapted to each other, the first slide block 310 is slidably disposed on the first slide rail 39, the first slide block 310 is connected to the first rack 35, and the first slide block 310 and the first rack 35 move synchronously. In practical operation, when the first power source 33 drives the first gear 34 to rotate, the first gear 34 drives the first rack 35 to translate, so that the first rack 35 drives the first slider 310 to translate along the first slide rail 39, and further drives the first shaping block 31 to move, thereby improving the stability of the first shaping block 31 during displacement. It should be further noted that the first slide rail 39 is parallel to the moving track set by the first shaping block 31.

Similarly, in order to improve the stability of the bag receiving seat 20 during operation and prevent the bag receiving seat 20 from deviating from the preset track during movement, please refer to fig. 1 to 3, the lifting mechanism 10 includes a third gear 12, a third rack 13, a third power source 11, a second slider and a second slide rail, the third rack is connected with the bag receiving seat 20, the third gear 12 is engaged with the third rack 13, and the output end of the third power source 11 is connected with the third gear 12; the second sliding rail is fixed on the shell, the second sliding block is connected with the bag receiving seat, and the second sliding block is arranged on the second sliding rail in a sliding mode.

The second slide rail is perpendicular to the first slide rail 39, along which the second slide moves, the second slide rail being fixed to the housing of the device. In this embodiment, one side of the second slider is connected to the bag receiving seat 20, and the other side of the second slider is connected to the third rack 13.

The second sliding rail is matched with the second sliding block, the second sliding block is arranged on the second sliding rail in a sliding mode, the second sliding block is connected with the third rack 13, and the second sliding block and the third rack 13 move synchronously; when the third power source 11 drives the third gear 12 to rotate, the third gear 12 drives the third rack 13 to move along the height direction, so that the third rack 13 drives the second slider to move along the second slide rail along the height direction.

Referring to fig. 6 to 14, in the present embodiment, the method further includes: the material pressing block 40 is arranged above the bag receiving seat 20, and the material pressing block 40 reciprocates in a direction close to or far away from the bag receiving seat 20, namely the material pressing block 40 moves in the height direction; the material block 40 is used to compress the material 70 in the package 60 to be sealed.

According to some embodiments of the application, further comprising: the inflation head is arranged above the bag receiving seat 20, relatively reciprocates in the height direction with the bag receiving seat 20, and is used for inflating gas into the packaging bag 60 to be sealed;

when the accommodating part 62 is filled with gas, the inflation head is arranged in the empty part 61 above the first shaping block 31 and the second shaping block 32.

In this embodiment, the inflation head is movable up and down along the height direction of the bag receiving base 20, i.e., the inflation head is connected to a displacement mechanism for driving the inflation head. Further, an inflation inlet 41 is arranged on the inflation head, and the arrangement of the inflation inlet 41 determines the gas discharge direction.

According to some embodiments of the application, in order to increase the inflation efficiency, preventing gas from not entering the receptacle 62, the computer program, when executed by the processor, further performs the steps of: when the accommodating part 62 is filled with air, the bottom surface of the inflation head is abutted against the upper end of the neck opening.

The gas now exits the inflation head directly into the receptacle 62.

In food production and packaging, in order to ensure the quality of food, a producer needs to exhaust the air in the package 60 to be sealed as much as possible and then seal the package 60 to be sealed.

Referring to fig. 17, in the present embodiment, the inflation port 41 of the inflation head is used for introducing inert gas into the packaging bag 60 to be sealed, the inflation port 41 is communicated with an external device through a pipeline, and the inert gas in the external device can be led out from the inflation port 41 through the pipeline and enter the packaging bag 60 to be sealed.

According to some embodiments of the application, the computer program, when executed by the processor, further performs the steps of:

the shape of the inflation head is matched with the inner wall of the hollow part 61.

In this embodiment, the size of the inflation head is the same as the cross-sectional size of the packaging bag 60 to be sealed, so that the gas can be effectively prevented from escaping from the periphery of the inflation head.

when the accommodating part 62 is filled with gas, the shape of the accommodating part 62 is defined from the outer wall of the accommodating part 62, so that the inner wall of the accommodating part 62 after the shape is defined is matched with the shape of the inflation head.

According to some embodiments of the application, further comprising:

the material pressing block 40 is arranged above the bag receiving seat 20, the material pressing block 40 and the bag receiving seat 20 perform relative reciprocating motion in the height direction, and the material pressing block 40 is used for extruding materials 70 in a packaging bag 60 to be sealed;

after the materials 70 are filled into the packaging bag 60 to be sealed, the bag receiving seat 20 and the material pressing block 40 move relatively close to each other, the material pressing block 40 extends into the packaging bag 60 to be sealed, the materials 70 are pressed by applying pressure from top to bottom, and the material pressing block 40 is an inflation head;

the bag receiving seat 20 and the material pressing block 40 relatively move away from each other, the material pressing block 40 retracts above the first shaping block 31 and the second shaping block 32 towards the direction of the bag opening, and the first shaping block 31 and the second shaping block 32 are close to each other to limit the empty part 61 and form a neck opening through which gas can pass.

The material pressing block 40 is used for pressing and shaping one end of the packaging bag to be matched with the section of the packaging bag 60 to be sealed when the packaging bag is opened; that is, when the package bag 60 to be sealed is opened, the material pressing block 40 can go deep into the package bag 60 to be sealed and press the material 70 in the package bag 60 to be sealed, so as to achieve the purpose of primarily compressing the material 70.

When the packaging bag 60 to be sealed is placed on the bag receiving seat 20, the material pressing block 40 vertically moves downwards, enters the packaging bag 60 to be sealed and presses the material 70 in the packaging bag 60 to be sealed, and after the pressing is finished, the material pressing block 40 is pulled out from the packaging bag 60 to be sealed, so that the primary shaping operation is finished.

Referring to fig. 17, in the present embodiment, an inflation port 41 is disposed at the bottom of the material pressing block 40, the inflation port 41 of the material pressing block 40 is used for introducing inert gas into the packaging bag 60 to be sealed, the inflation port 41 is communicated with an external device through a pipeline, and the inert gas in the external device can be led out from the inflation port 41 through the pipeline and enter the packaging bag 60 to be sealed.

Inert gases in this application include nitrogen, carbon dioxide, noble gases, and gases that do not react with the material 70, and are used to prevent food spoilage.

In summary, in the complete process of the present application, the packaging bag 6061 to be sealed with the material 70 is placed on the bag receiving seat 20, the material pressing block 40 moves downward along the height direction and extends into the packaging bag 6061 to be sealed, and then the material pressing block 40 continues to extend into the packaging bag 60 to be sealed; then the material pressing block 40 presses the material 70 in the packaging bag 60 to be sealed and is filled with inert gas (preferably, nitrogen); the material block 40 then moves away from the pocket receiving base 20.

The bag receiving seat 20 and the shaping mechanism perform relative movement until the lower edge of the first shaping block 31, the lower edge of the second shaping block 32 and the upper edge of the accommodating portion 62 of the packaging bag 60 to be sealed (the uppermost line of the accommodating portion 62 in fig. 5) are located on the same plane. The first and second shaping blocks 31 and 32 clamp the empty part 61, and the bag holder 20 and the shaping mechanism perform relative approaching movement to press the accommodating part 62.

The first and second shaping blocks 31 and 32 release the pouch 60 to be sealed, and the receptacle 20 and the shaping mechanism perform a relative approaching motion again to discharge the gas in the receiving portion 62. The first and second shaping blocks 31 and 32 then seal the package 60 to be sealed to form a first sealed region 51. The bag receiving seat 20 and the shaping mechanism perform relative distancing movement until one end of the empty part 61 away from the accommodating part 62 is placed between the first shaping block 31 and the second shaping block 32, and the first shaping block 31 and the second shaping block 32 perform sealing operation on the first sealed package to form a second sealed area 52.

The sealing device for the packaging bag of the above embodiments can be applied to packaging equipment, such as a tea packaging machine.

after the packaging bag 60 to be sealed is shaped, the gas is continuously filled into the accommodating part 62 through the neck opening, and meanwhile, the first shaping block 31 and the second shaping block 32 clamp the packaging bag 60 to be sealed.

According to some embodiments of the present application, the first and second shaping blocks 31, 32 are closed blocks;

after the packaging bag 60 to be sealed is shaped, the first shaping block 31 and the second shaping block 32 clamp the packaging bag 60 to be sealed, and the packaging bag 60 to be sealed is sealed to form a first sealing area 51.

The setting of the seal piece can effectively improve work efficiency, avoids inflating the wrapping bag 60 gas leakage of treating after accomplishing to seal to influence and aerify the quality.

Similarly, according to some embodiments of the present application, the first and second shaping blocks 31 and 32 are closed blocks;

in the shaping, the bag receiving base 20 and the first and second shaping blocks 31 and 32 perform a relative approaching movement in the height direction to press the receiving portion 62 in the height direction.

the bag receiving seat 20 can move up and down in the height direction, and the first shaping block 31 and the second shaping block 32 are fixedly arranged in the height direction. That is, in the present embodiment, the movement of the packing bag 60 to be sealed is performed by controlling the movement of the bag receiving base 20 in the height direction.

And after the air inflation shaping is finished, the material pressing block continues to inflate, the first shaping block and the second shaping block move relatively close to each other again, the packaging bag to be sealed is clamped, the packaging bag to be sealed is sealed, and a first sealing area is formed.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims

1. A method for reshaping a packaging bag, comprising the steps of:

and gas is filled into the containing part through the neck opening, so that the containing part is expanded, the packaging bag to be sealed is shaped, the shoulder part of the expanded containing part is abutted against the lower edges of the first shaping block and the second shaping block, and the bottom of the packaging bag to be sealed is abutted against the bag receiving seat.

2. The method of reforming a packing bag according to claim 1, wherein the bag receiving seat and the first and second reforming blocks perform a relative approaching movement such that a distance between the first and second reforming blocks and a bottom of the bag receiving seat is equal to a height of the material in the receiving seat, while the empty portion of the packing bag to be sealed is horizontally interposed between the first and second reforming blocks.

3. The method of claim 1, wherein an inflation head is disposed in the empty part above the first and second shaping blocks when the receiving part is inflated with gas.

4. The method of claim 3, wherein the bottom surface of the inflation head is pressed against the upper end of the neck opening when the receptacle is inflated with the gas.

5. The method of claim 3, wherein the shape of the air-filling head is adapted to the inner wall of the hollow portion.

6. The method of claim 3, wherein the shape of the empty part is defined from an outer wall of the empty part when the air is filled into the accommodating part, so that the inner wall of the empty part after the shape is defined is matched with the shape of the inflation head.

7. The method of claim 1, wherein the step of shaping the packaging bag,

8. The method of claim 7, wherein the bottom surface of the material pressing block is provided with an air filling port through which air is discharged.

9. The method of claim 1, wherein after the reforming of the pouch to be sealed, the gas is continuously supplied to the receiving part through the neck while the first and second reforming blocks clamp the pouch to be sealed.

10. The method for reforming the packing bag according to claim 1, wherein the first and second reforming blocks are sealing blocks, and after the packing bag to be sealed is reformed, the first and second reforming blocks clamp the packing bag to be sealed to seal the packing bag to be sealed, thereby forming a first sealing area.

11. The method of claim 1, wherein the first and second shaping blocks are seal blocks;

12. The method of reforming a packing bag according to claim 1, wherein the bag receiving seat and the first and second reforming blocks perform a relative approaching motion in a height direction to squeeze the receiving part in the height direction at the time of reforming.

13. The method for shaping a packaging bag according to claim 1, wherein the gas filled into the packaging bag to be sealed by the material briquette is an inert gas.

14. The method of sealing a packing bag according to any one of claims 1 to 13, wherein the bag receiving base is movable up and down in a height direction, and the first and second shaping blocks are fixedly provided in the height direction.

15. A package bag closing device, comprising:

16. The package closure apparatus of claim 15, wherein the computer program when executed by the processor further performs the steps of:

when the empty part of the packaging bag to be sealed is horizontally arranged between a first shaping block and a second shaping block, the bag receiving seat and the first shaping block and the second shaping block move relatively close to each other, so that the distance between the first shaping block and the bottom of the bag receiving seat and the distance between the second shaping block and the bottom of the bag receiving seat are equal to the height of the materials in the receiving part.

17. The package closure of claim 15, further comprising:

18. The package closure apparatus of claim 17, wherein the computer program when executed by the processor further performs the steps of:

19. The package closure apparatus of claim 17, wherein the computer program when executed by the processor further performs the steps of:

20. The package closure apparatus of claim 17, wherein the computer program when executed by the processor further performs the steps of:

21. The package closure apparatus of claim 15, further comprising:

the bag receiving seat and the material pressing block relatively move away from each other, the material pressing block returns to the bag opening direction to be above the first shaping block and the second shaping block, and the first shaping block and the second shaping block are close to each other to limit the empty part and form a neck opening through which gas can pass.

22. The package closure apparatus of claim 21, wherein the bottom surface of the material block is provided with an air-filling port for discharging air.

23. The package closure apparatus of claim 15, wherein the computer program when executed by the processor further performs the steps of:

24. The package closure apparatus of claim 15, wherein the first and second shaped blocks are closure blocks;

25. The package closure apparatus of claim 15, wherein the first and second shaped blocks are closure blocks;

26. The package closure apparatus of claim 15, wherein the computer program when executed by the processor further performs the steps of:

27. The package closure apparatus of any one of claims 15 to 26, wherein the computer program when executed by the processor further performs the steps of:

28. A packaging apparatus, characterized in that it has a package closure device according to any one of claims 15 to 27.

29. A packaging apparatus as claimed in claim 28, wherein the packaging apparatus is a tea leaf packaging machine.