CN116573211A

CN116573211A - Sealing equipment

Info

Publication number: CN116573211A
Application number: CN202310849341.5A
Authority: CN
Inventors: 石国成
Original assignee: Fujian Quanzhou Qianfu Automation Technology Co ltd
Current assignee: Fujian Quanzhou Qianfu Automation Technology Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2023-08-11

Abstract

The invention discloses sealing equipment, wherein a packaging bag comprises a lower containing part and an upper empty part of a bag body, a first bin body and a second bin body are arranged in a reciprocating mode in the horizontal direction, a sealed first chamber and a sealed second chamber are formed when the first bin body and the second bin body are folded in the horizontal direction, and the first chamber is arranged above the second chamber; the bag placing bin is provided with an air extracting opening which is connected with an air path of the vacuumizing mechanism; the bag receiving seat is arranged in the second chamber; when the first bin body and the second bin body are folded in the horizontal direction, the bag opening of the package to be sealed is arranged in the first chamber, the containing part is arranged in the second chamber, and the empty part of the package bag is clamped by the first bin body and the second bin body. Through the setting of first cavity and second cavity for the sack and the holding portion of wrapping bag are arranged in first cavity and second cavity respectively, and through the gas in selecting extraction first cavity and/or the second cavity simultaneously, realize the plastic function of evacuation or holding portion in the bag.

Description

Sealing equipment

Technical Field

The invention relates to the field of shaping and sealing of packaging bags, in particular to sealing equipment.

Background

At present, along with the great improvement of market demands, a great deal of products on the market need to be subjected to mechanical packaging and sealing operation so as to adapt to the great deal of product demands, wherein taking tea as an example, the existing tea packaging bag not only requires the tea to be subjected to good packaging, but also requires the packaged tea packaging bag to be regular in appearance.

In the past, the packaging mode is mainly manual packaging, and in recent years, a packaging machine for tea packaging is used, wherein a sealed cavity is arranged at a bag opening, and the vacuumizing operation of a packaging bag is realized by independently extracting gas in the cavity of the bag opening; or the closed chamber is arranged at the accommodating part, and the shaping operation of the accommodating part is realized by independently extracting the gas in the closed chamber at the accommodating part.

However, in the above method, in order to realize evacuation of the bag or reshaping of the accommodating portion, it is necessary to switch different devices, and the operation is complicated.

Disclosure of Invention

In view of the above, the present application provides a sealing device to efficiently implement a vacuum pumping function in a bag or a shaping function of a receiving portion.

To achieve the above object, the present application provides a sealing apparatus for shaping and sealing a package bag, the package bag including a receiving portion at a lower portion of a bag body and a vacant portion at an upper portion of the bag body, the apparatus comprising:

the bag placing bin comprises a first bin body and a second bin body, the first bin body and the second bin body are arranged in a reciprocating mode in the horizontal direction, a first cavity and a second cavity are formed when the first bin body and the second bin body are folded in the horizontal direction, and the first cavity is arranged above the second cavity;

The bag placing bin is provided with an air extracting opening, the air extracting opening is connected with an air path of the vacuumizing mechanism, and the air extracting opening is used for extracting air in the first cavity and/or the second cavity;

when the first bin body and the second bin body are folded in the horizontal direction, the first chamber and the second chamber form two independent air extraction spaces, a bag opening of the package to be sealed is arranged in the first chamber, and the accommodating part is arranged in the second chamber.

In some embodiments, further comprising: the bag receiving seat is arranged in the second cavity and used for supporting the packaging bag.

In some embodiments, further comprising:

the displacement assembly is arranged in the second cavity, the bag receiving seat is in transmission connection with the displacement assembly, and the displacement assembly is used for driving the bag receiving seat to move along the height and/or horizontal direction.

In some embodiments, the displacement assembly comprises:

the horizontal displacement assembly is used for driving the bag receiving seat to move along the horizontal direction; when the first bin body and the second bin body are folded in the horizontal direction, the horizontal displacement assembly drives the bag receiving seat to move to a position corresponding to the folding position of the first bin body and the second bin body; when the first bin body and the second bin body are separated in the horizontal direction, the horizontal displacement assembly drives the bag receiving seat to move into an exposed space between the first bin body and the second bin body.

In some embodiments, the horizontal displacement assembly comprises a ram and a reset;

the ejector rod is arranged towards the direction of the second bin body and is in transmission connection with the bag receiving seat, one end of the ejector rod, which faces the second bin body, is matched with the inner wall of the second bin body in a propping manner, and when the ejector rod and the inner wall of the second bin body are propped against each other in the horizontal folding process of the first bin body and the second bin body, the bag receiving seat is pushed to move towards the first bin body; when the ejector rod is not propped against the inner wall of the second bin body, the reset piece pushes the bag receiving seat to move towards the direction of the second bin body.

In some embodiments, the horizontal displacement assembly is coupled to the first cartridge body.

In some embodiments, the displacement assembly comprises: a height displacement assembly; the height displacement assembly is arranged along the height direction and is used for driving the bag receiving seat to move along the height direction; the horizontal displacement assembly is arranged on the height displacement assembly, and the bag receiving seat is arranged on the horizontal displacement assembly.

In some embodiments, the first cartridge body comprises: the device comprises a first shell and a first isolation block, wherein the first isolation block is arranged in the first shell, the first isolation block isolates a cavity in the first shell into a first vacuum cavity and a second vacuum cavity, and the first vacuum cavity is arranged above the second vacuum cavity;

The second bin body comprises: the second isolation block is arranged in the second shell, the cavity in the second shell is isolated into a third vacuum cavity and a fourth vacuum cavity by the second isolation block, and the third vacuum cavity is arranged above the fourth vacuum cavity.

In some embodiments, further comprising: a first sealing block and a second sealing block;

the first sealing block is arranged in the first vacuum cavity, and the second sealing block is arranged in the third vacuum cavity;

the first sealing block and the second sealing block are arranged in a reciprocating mode in the horizontal direction, and the first sealing block and the second sealing block are used for sealing the packaging bag.

the first sealing block is integrated with the first isolation block, or the second sealing block is integrated with the second isolation block.

In some embodiments, further comprising: a third sealing block and a fourth sealing block;

the third sealing block is arranged in the second vacuum cavity, and the fourth sealing block is arranged in the fourth vacuum cavity;

the third sealing block and the fourth sealing block are arranged in a reciprocating mode in the horizontal direction.

the third sealing block is integrated with the first isolation block, or the fourth sealing block is integrated with the second isolation block.

In some embodiments, further comprising: the first shaping block is arranged in the second vacuum cavity, and the second shaping block is arranged in the fourth vacuum cavity;

the first shaping block and the first bin body move relatively along the height direction, the second shaping block and the second bin body move relatively along the height direction, and the first shaping block and the second shaping block move synchronously.

In some embodiments, the first cartridge body comprises: the first vacuum chamber is arranged in the first shell, the first isolation block is vertically arranged above the first shell, and one side, close to the second bin body, of the first isolation block is flush with one side, close to the second bin body, of the first shell;

the second bin body comprises: the second isolation block is arranged in the second shell, and isolates the cavity in the second shell into a third vacuum cavity and a fourth vacuum cavity, and the third vacuum cavity is arranged above the fourth vacuum cavity;

When the first bin body and the second bin body are folded, the first isolation block and the third vacuum cavity are in airtight fit to form a first cavity, and the second vacuum cavity and the fourth vacuum cavity are in airtight fit to form a second cavity.

In some embodiments, the second cartridge body comprises: the second vacuum cavity is arranged in the second shell, the second isolation block is vertically arranged above the second shell, and one side, close to the first bin body, of the second isolation block is flush with one side, close to the first bin body, of the second shell;

the first bin body comprises: the device comprises a first shell and a first isolation block, wherein the first isolation block is arranged in the first shell, the first isolation block isolates a cavity in the first shell into a first vacuum cavity and a second vacuum cavity, and the first vacuum cavity is arranged above the second vacuum cavity;

when the first bin body and the second bin body are folded, the second isolation block is in airtight fit with the first vacuum cavity to form a first cavity, and the second vacuum cavity is in airtight fit with the fourth vacuum cavity to form a second cavity.

Compared with the prior art, the technical scheme is different from the prior art, through the arrangement of the first cavity and the second cavity, the bag opening and the accommodating part of the packaging bag are respectively arranged in the first cavity and the second cavity, and meanwhile, the functions of vacuumizing in the bag or shaping the accommodating part are realized through extracting the gas in the first cavity and/or the second cavity.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other 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 the purpose of illustrating preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a block diagram of a sealing device according to an embodiment;

FIG. 2 is a diagram showing the structure of the first and second chambers when the first and second chambers are closed in accordance with the embodiment;

FIG. 3 is a view showing a structure of the third sealing block and the fourth sealing block in the case of moving in the height direction according to the embodiment;

FIG. 4 is a diagram showing a structure of the second chamber when the second chamber is vacuumized according to the embodiment;

FIG. 5 is a block diagram of a first cartridge body and a second cartridge body according to an embodiment;

FIG. 6 is a block diagram of a first chamber and a second chamber according to an embodiment;

FIG. 7 is a diagram showing a structure of the bag holder when the height of the package bag is adjusted according to the embodiment;

FIG. 8 is a diagram showing a structure of the second chamber in direct vacuum pumping according to the embodiment;

FIG. 9 is a diagram showing a structure of the first chamber when the first chamber is vacuumized according to the embodiment;

fig. 10 is a diagram of a first spacer structure according to an embodiment.

Reference numerals illustrate:

10. placing in a bag bin; 20. a bag receiving seat; 30. a displacement assembly; 40. a first sealing block; 50. a second sealing block; 60. an extraction opening; 70. packaging bags; 80. a first shaping block; 90. a second shaping block;

11. a first bin; 12. a second bin; 13. a first chamber; 14. a second chamber; 15. a flat plate;

31. a horizontal displacement assembly; 32. a height displacement assembly;

71. an empty part; 72. an accommodating portion;

111. a first housing; 112. a first spacer;

121. a second housing; 122. a second spacer;

311. a push rod; 312. and a reset piece.

Description of the embodiments

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

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 "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

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

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

Referring to fig. 1 to 9, the present application discloses a sealing device, a packaging bag 70 includes a lower accommodating portion 72, and a hollow portion 71 at an upper portion of the bag body, including:

the bag placing bin 10 comprises a first bin body 11 and a second bin body 12, wherein the first bin body 11 and the second bin body 12 are arranged in a reciprocating mode in the horizontal direction, a first airtight cavity 13 and a second airtight cavity 14 are formed when the first bin body 11 and the second bin body 12 are folded in the horizontal direction, and the first cavity 13 is arranged above the second cavity 14;

The air extraction opening 60 is arranged on the bag placing bin 10, the air extraction opening 60 is connected with an air path of the vacuumizing mechanism, and the air extraction opening 60 is used for extracting air in the first chamber 13 or the second chamber 14;

a bag receiving seat 20, wherein the bag receiving seat 20 is disposed in the second chamber 14, and the bag receiving seat 20 is used for supporting the packaging bag 70;

when the first bin body and the second bin body are folded in the horizontal direction, the first chamber and the second chamber form two independent air extraction spaces, a bag opening of the package to be sealed is arranged in the first chamber, and the accommodating part is arranged in the second chamber. Further, after the first bin body and the second bin body are folded in the horizontal direction, a first chamber and a second chamber which are independent of each other are formed, the first chamber and the second chamber are not basically communicated with each other, so that the air extraction effect is affected, and the empty part 71 of the packaging bag 70 is clamped by the first bin body 11 and the second bin body 12.

The bag placing bin 10 comprises a first bin body 11 and a second bin body 12, the first bin body 11 and the second bin body 12 are oppositely arranged, and the first bin body 11 and the second bin body 12 do relative reciprocating motion in the horizontal direction, namely, the first bin body 11 and the second bin body 12 can move in a folding or mutual far-apart mode. In the present application, folding refers to the process or end-time state of two objects approaching each other to contact or very approaching each other, or touching the centered object.

Referring to fig. 5 to 6, when the first bin 11 and the second bin 12 are integrally formed and the first bin 11 and the second bin 12 are folded, a first chamber 13 and a second chamber 14 are formed, the first chamber 13 is disposed above the second chamber 14, the first chamber 13 and the second chamber 14 are independent from each other, the first chamber 13 is closed after folding, and the second chamber 14 is closed. And the contact position of the first bin 11 and the second bin 12 can be subjected to airtight treatment (i.e., the contact position of the first bin 11 and the second bin 12 can be provided with a sealing strip).

In some embodiments, there are two extraction openings 60, and both extraction openings 60 are disposed on the bag house 10; specifically, when the first bin 11 and the second bin 12 are closed, the two air extraction openings 60 are respectively communicated with the first chamber 13 and the second chamber 14, and the air in the first chamber 13 and/or the second chamber 14 can be extracted by the vacuum mechanism through the air extraction openings 60. In other embodiments, the extraction port may be provided in only the first chamber 13, or in only the second chamber 14, depending on the design requirements of the equipment extraction.

Of course, in some embodiments, the air extraction openings 60 are two air extraction pipes, and when the first bin 11 and the second bin 12 are folded, the first bin 11 and the second bin 12 clamp the two air extraction pipes; that is, when the first bin 11 and the second bin 12 are folded to form the first chamber 13 and the second chamber 14, the air extraction end of one air extraction pipe is arranged in the first chamber 13, and the air extraction end of the other air extraction pipe is arranged in the second chamber 14.

Referring to fig. 8 to 9, when the vacuum operation is required to be performed in the packaging bag 70, the vacuum mechanism draws the gas in the first chamber 13 through the suction opening 60 communicated with the first chamber 13; specifically, when the gas in the first chamber 13 is extracted, since the opening of the packing bag 70 is located in the first chamber 13, the gas in the packing bag 70 can be extracted from the empty portion through the mouth of the bag, and the evacuation operation in the bag is completed. Since the first chamber 13 and the second chamber 14 are independent of each other, gas is not easy to enter the first chamber 13 from the outside and the second chamber 14, and even if a small amount of gas flows into the first chamber 13 from the second chamber 14, the vacuumizing effect of the packaging bag is not affected as long as the vacuumizing speed is enough.

In this embodiment, since the bag placing bin is divided into two parts, namely the first chamber 13 and the second chamber 14, which are relatively independent, when the packaging bag is pumped, only the air in the first chamber 13 needs to be pumped, compared with the scheme that the first chamber 13 and the second chamber 14 are not separated, only the whole chamber is arranged, and only the air in the first chamber 13 needs to be pumped, compared with the whole air in the whole chamber, the air pumping efficiency is higher. In addition, compared with the scheme that only the first chamber 13 is arranged, and the second chamber 14 is not arranged, the packaging bag accommodating part is exposed to the atmosphere, and the gas flowing into the first chamber 13 from the contact part of the first chamber 13 and the packaging bag from the second chamber 14 during air suction is obviously less than the gas flowing into the first chamber 13 from the contact part of the first chamber 13 and the packaging bag directly from the atmosphere, because the second chamber 14 also has a certain airtight effect, the direct contact of the first chamber 13 and the atmosphere is blocked, and a buffer effect is realized.

Referring to fig. 7, when the vacuum shaping operation is required for the packaging bag 70, the vacuum mechanism draws the gas in the second chamber 14 through the air extraction opening 60 communicated with the second chamber 14; specifically, when the gas in the second chamber 14 is extracted, the gas pressure in the second chamber 14 is reduced, the gas in the packaging bag 70 is kept unchanged, and the packaging bag 70 is inflated and shaped; the expanded accommodating part 72 can realize the shaping operation of the accommodating part 72 by limiting a first isolation block for isolating the first chamber from a second chamber and the second isolation block; the expanded accommodating portion 72 may also limit the bottom of the second chamber 14 or the bag receiving seat 20, so as to implement the shaping operation of the accommodating portion 72. Simultaneously, the gas of the first chamber can enter the accommodating part through the bag opening, so that the expansion of the packaging bag is further realized, and the packaging bag is prevented from retracting after sealing.

Of course, in some embodiments, the vacuumizing mechanism may first suck the gas in the first chamber 13 and then suck the gas in the second chamber 14, so as to press the material first and then make the material drop.

Of course, in some embodiments, the first bin and the second bin may have a certain gap between them when they are closed, and at this time, the first bin and the second bin just clamp the packaging bag, so that the packaging bag cannot fall off; and at the moment, the vacuumizing speed of the vacuumizing mechanism is larger than the speed of the gas entering the first chamber and/or the second chamber, and the vacuumizing operation of the first chamber and/or the second chamber is still realized.

Referring to fig. 1 to 2, when the first chamber 13 and the second chamber 14 are formed, the bag holder 20 is disposed in the second chamber 14, and the bag holder 20 is used for receiving the packaging bag 70; specifically, when the first bin 11 and the second bin 12 are not folded yet, a falling channel for the packaging bag 70 to fall down is arranged between the first bin 11 and the second bin 12, and the bag receiving seat 20 is positioned on the exposed space; when the packaging bag 70 falls down and is placed on the bag receiving seat 20, the first bin body 11 and the second bin body 12 are folded to form a first chamber 13 and a second chamber 14, at this time, the packaging bag 70 is clamped by the first bin body 11 and the second bin body 12, the bag opening is placed in the first chamber 13, and the accommodating portion 72 is placed in the second chamber 14. Referring to fig. 7 to 9, the vacuum-pumping mechanism can then pump the gas in the first chamber 13 or the second chamber 14 to complete the shaping or vacuum-pumping operation.

In contrast to the prior art, the above-mentioned technical solution is that the first chamber 13 and the second chamber 14 are provided, so that the mouth of the packaging bag 70 and the accommodating portion 72 are respectively disposed in the first chamber 13 and the second chamber 14, and at the same time, the vacuum pumping or the shaping function of the accommodating portion 72 in the bag is realized by extracting the gas in the first chamber 13 and/or the second chamber 14. Further, the first chamber and the second chamber are vertically arranged and compared, and only one chamber body has the advantages that: 1. the air suction in the bag has small space, high speed and low energy consumption; 2. the integer space of the accommodating part is reduced, the air extraction speed is high, the sealing part of the bag is smooth, the empty part and the accommodating part of the bag are blocked by the isolation blocks, and the integer expansion cannot reach the sealing part.

According to some embodiments of the application, referring to fig. 1 to 2, further comprising:

the displacement assembly 30 is disposed in the second chamber 14, the bag receiving seat 20 is in transmission connection with the displacement assembly 30, and the displacement assembly 30 is configured to drive the bag receiving seat 20 to move along the height and/or horizontal direction.

One end of the displacement assembly 30 is connected with the first bin body 11, and the displacement assembly 30 is arranged on the upper body of the side wall of the first bin body 11, which is close to the second bin body 12, and is arranged in the inner concave of the first bin body 11; the other end is connected with the bag receiving seat 20, and the displacement assembly 30 is used for driving the bag receiving seat 20 to displace in the height and/or horizontal direction. When the packaging bag 70 falls onto the bag receiving seat 20, the displacement assembly 30 can drive the packaging bag 70 to move along the horizontal or height direction; of course, in some embodiments, the displacement assembly 30 may first drive the bag holder 20 to move to the predetermined position, and then the packaging bag 70 is dropped onto the bag holder 20.

In actual operation, the packaging bag 70 is moved onto the bag receiving seat 20 by external equipment, the displacement assembly 30 drives the bag receiving seat 20 to move to a preset height, and the first bin 11 and the second bin 12 are folded to form a first chamber 13 and a second chamber 14 and clamp the empty part 71 of the packaging bag 70; the evacuation mechanism draws gas from the first chamber 13 and/or the second chamber 14 to vacuum the package 70 or to expand and reshape the receptacle 72 of the package 70.

When the first bin 11 and the second bin 12 are closed, the displacement assembly 30 can move synchronously along the horizontal direction, so that the packaging bag 70 moves synchronously, and the second bin 12 is prevented from touching the packaging bag 70 during the movement, so that the packaging bag 70 is askew.

Meanwhile, the displacement assembly 30 may be set to a height according to an actual length of the packing bag 70 such that the packing bag 70 is placed in the first chamber 13 and the receiving portion 72 is placed in the second chamber 14 when the first chamber 13 and the second chamber 14 are formed.

According to some embodiments of the present application, referring to fig. 1 to 2, the present application discloses a sealing apparatus, the displacement assembly 30 comprises:

the horizontal displacement assembly 31 is configured to drive the bag receiving seat 20 to move along a horizontal direction; when the first bin 11 and the second bin 12 are folded in the horizontal direction, the horizontal displacement assembly 31 drives the bag receiving seat 20 to move to a position corresponding to the folding position of the first bin 11 and the second bin 12; when the first bin 11 and the second bin 12 are separated in the horizontal direction, the horizontal displacement assembly 31 drives the bag receiving seat 20 to move into the exposed space between the first bin 11 and the second bin 12.

It should be noted that, the height of the bag receiving seat 20 may be preset according to the actual height of the packaging bag 70, so that when the first bin 11 and the second bin 12 are closed, the mouth of the packaging bag 70 is placed in the first chamber 13, and the accommodating portion 72 is placed in the second chamber 14. When the first bin 11 and the second bin 12 are in a separated state, an exposed space is arranged between the first bin 11 and the second bin 12; the exposed space is available for the bag to pass through the bag-seal package 70.

In actual operation, the package to be sealed falls onto the bag receiving seat 20 through the exposed space, and then the first bin 11 and the second bin 12 are folded, and when the first bin 11 and the second bin 12 are folded, the horizontal displacement assembly 31 drives the bag receiving seat 20 to move, so that the packaging bag 70 moves synchronously, and the second bin 12 is prevented from touching the packaging bag 70 in the moving process, so that the packaging bag 70 is askew.

According to some embodiments of the present application, referring to fig. 1 to 2, the horizontal displacement assembly 31 includes a push rod 311 and a reset member 312;

the ejector rod 311 is arranged towards the direction of the second bin body 12 and is in transmission connection with the bag connecting seat 20, one end of the ejector rod 311 towards the second bin body 12 is matched against the inner wall of the second bin body 12, and when the ejector rod 311 is abutted against the inner wall of the second bin body 12 in the process of folding the first bin body 11 and the second bin body 12 in the horizontal direction, the bag connecting seat 20 is pushed to move towards the first bin body 11; when the ejector rod 311 does not abut against the inner wall of the second bin 12, the reset element 312 pushes the bag receiving seat 20 to move toward the second bin 12.

The ejector rod 311 is arranged at one side of the bag receiving seat 20 far away from the first bin 11, and the ejector rod 311 is used for pushing the bag receiving seat 20 to move; when the first and second chambers 11 and 12 are closed, the distance between the first and second chambers 11 and 12 is gradually reduced, and then the second chamber 12 is contacted with the push rod 311, at this time, the bag receiving seat 20 is disposed between the first and second chambers 11 and 12 (preferably, the bag receiving seat 20 is disposed at the midpoint between the first and second chambers 11 and 12), at this time, the packaging bag 70 is not contacted with the first and second chambers 11 and 12, and only after the first and second chambers 11 and 12 are contacted, the first and second chambers 11 and 12 clamp the packaging bag 70. Then the second bin body 12 drives the bag receiving seat 20 by pushing the ejector rod 311 and synchronously moves with the bag receiving seat 20; at this time, the first bin 11 pushes the horizontal translation component to move towards the second bin 12, and the second bin 12 pushes the bag receiving seat 20 to move towards the first bin 11 on the horizontal translation component.

It should be further noted that, the distance from the end of the ejector rod 311 away from the first bin body 11 to the midpoint of the bag receiving seat 20 is equal to or similar to the depth of the second bin body 12, and the depth of the second bin body 12 is the distance between the side of the second bin body 12 close to the first bin body 11 and the side of the hollow cavity of the second bin body 12 away from the first bin body 11. To ensure that the midpoint of the bag holder 20 is positioned or approaches below the contact position of the first and second housings 11, 12 when the empty portion 71 is clamped.

The restoring member 312 has elasticity, one end of the restoring member 312 is connected with the bag receiving seat 20, and the other end of the restoring member 312 is connected with the first bin 11. When the second bin 12 pushes the ejector rod 311, the bag receiving seat 20 compresses the reset piece 312, and at the moment, elastic potential energy is stored in the reset piece 312; when the second bin 12 is separated from the first bin 11, the reset element 312 releases the elastic force, and at this time, the distance between the first bin 11 and the second bin 12 gradually increases, and the reset element 312 drives the bag receiving seat 20 to move towards the second bin 12, so that the bag receiving seat 20 is placed in the exposed space. Preferably, return member 312 is a spring.

According to some embodiments of the application, referring to fig. 7, the displacement assembly 30 comprises: a height displacement assembly 32; the height displacement assembly 32 is disposed along the height direction and is used for driving the bag receiving seat 20 to move along the height direction; the horizontal displacement assembly 31 is arranged on the height displacement assembly 32, and the bag receiving seat 20 is arranged on the horizontal displacement assembly 31; and a roller is arranged at one end of the ejector rod 311, which faces the second bin body 12.

After the packaging bag 70 falls onto the bag receiving seat 20, the height displacement assembly 32 can drive the horizontal displacement assembly 31 to move in the height direction, so that the first compartment 11 and the second compartment 12 are closed, the bag opening is disposed in the first chamber 13, and the accommodating portion 72 is disposed in the second chamber 14.

It is further described that the height displacement assembly 32 can drive the bag receiving seat 20 to move in the height direction before the first bin 11 and the second bin 12 are closed, that is, the height displacement assembly 32 drives the bag receiving seat 20 to move before the first bin 11 and the second bin 12 are closed; of course, when the first bin 11 and the second bin 12 are closed, the height displacement assembly 32 may also synchronously drive the bag receiving seat 20 to move along the height direction, and move the bag receiving seat 20 to a predetermined position before the clamping accommodating portion 72 of the first bin 11 and the second bin 12.

The roller is arranged at one end of the ejector rod 311 far away from the first bin body 11, the roller is rotatably connected with the ejector rod 311, and when the second bin body 12 pushes the ejector rod 311 and the height displacement assembly 32 drives the bag receiving seat 20 to move along the height direction, the roller rolls on the second bin body 12.

When the first bin body and the second bin body are folded in the horizontal direction, and the first cavity and the second cavity form two relatively independent air extraction spaces, the application provides the following embodiments;

First, referring to fig. 5 to 6, according to some embodiments of the present application, the first cartridge 11 includes: a first housing 111 and a first spacer 112, the first spacer 112 being disposed within the first housing 111;

the second cartridge body 12 includes: the second isolation block 122 is arranged in the second housing 121 and is opposite to the first isolation block, and when the first bin body and the second bin body are folded in the horizontal direction, the first isolation block and the second isolation block separate the first chamber from the second chamber.

The first bin body 11 is of an integrated structure, the first bin body 11 comprises a first shell 111 and a first isolation block 112, the first shell 111 is in a concave shape, an opening of the first shell 111 is arranged towards the second bin body 12, and the first isolation block 112 is arranged in a cavity of the first shell 111, namely, the first bin body 11 is of an E-shaped structure.

Similarly, the second bin body 12 is an integrated structure, the second bin body 12 comprises a second shell 121 and a second isolation block 122, the second shell 121 is concave, an opening of the second shell 121 is arranged towards the first bin body 11, the second isolation block 122 is arranged in a cavity of the second shell 121, namely, the second bin body 12 is in an E-shaped structure, and the first bin body 11 and the second bin body 12 are symmetrically arranged.

Further, when the first and second container bodies 11 and 12 are closed, the first and second isolation blocks 112 and 122 are synchronously closed, and the first and second isolation blocks 112 and 122 clamp the empty portion of the package bag; when the package bag 70 is not folded, the empty portion 71 of the package bag 70 is moved between the first isolation block 112 and the second isolation block 122 by the displacement assembly 30, so that the folded package bag mouth is placed in the first chamber 13, and the receiving portion is placed in the second chamber 14. When the first and second container bodies 11 and 12 are closed, the first and second spacer blocks 112 and 122 sandwich the empty portion 71 of the package bag 70.

In other embodiments, referring to fig. 10, the first bin includes: the first isolation block partitions the first shell into a first cavity and a second cavity which are open, the openings of the first cavity and the second cavity face the second bin body, and the first cavity is positioned above the second cavity;

the second bin body comprises: the part of the second shell, which is opposite to the opening of the first cavity, is a flat plate 15, and when the first bin body and the second bin body are folded in the horizontal direction, the first cavity and the second shell are folded into a first cavity; and/or the part of the second housing opposite to the opening of the second cavity is a flat plate 15, and when the first bin body and the second bin body are folded in the horizontal direction, the second cavity and the second housing are folded into a second cavity.

Specifically, the second bin body 12 is an integrally formed structure, the second bin body 12 includes a second housing 121 and a second isolation block 122, the second housing 121 is in a "concave" shape, and an opening of the second housing 121 is disposed towards the first bin body 11, and the second isolation block 122 is disposed in a cavity of the second housing 121, that is, the second bin body 12 is in an "E" shape structure. Further, in the present embodiment, the second spacer divides the cavity in the second housing into a first cavity and a second cavity, the first cavity being disposed above the second cavity.

The first bin 11 includes a first housing 111, and the first housing 111 is disposed opposite to the second housing; wherein, the portion of the first cavity opposite to the first housing 111 is a flat plate 15 (i.e. the upper portion of the second housing), when the first bin 11 and the second bin 12 are closed, the first cavity and the flat plate 15 of the first housing 111 are hermetically matched to form a first chamber 13; the cavity of the lower portion of the first housing 111 is hermetically matched with the second cavity to form a second chamber 14. Further, in some embodiments, the lower portion of the first housing 111 is a flat plate 15, and the upper portion is a cavity; when closed, the upper chamber of the first housing 111 forms a first chamber 13 with the first cavity, and the lower portion of the first housing 111 forms a second chamber 14 with the second cavity. Of course, the first housing 111 may be integrally formed as a vertically disposed flat plate 15, and the flat plate 15 is hermetically matched with the first cavity and the second cavity to form the first chamber 13 and the second chamber 14. The airtight or airtight fit in the specification means that when the vacuumizing operation is performed, external gas is not easy to enter the cavity or the pumping speed is higher than the speed of the gas entering the cavity, and the complete airtight closure cannot be understood, and the higher the airtight degree is, the better the pumping effect is.

According to some embodiments of the application, referring to fig. 1 to 9, further comprising: a first sealing block 40 and a second sealing block 50;

the first sealing block 40 and the second sealing block 50 are placed in the first chamber 13 and/or in the second chamber 14;

the first sealing block 40 and the second sealing block 50 are disposed to reciprocate horizontally with respect to each other, so as to seal the package bag 70.

Preferably, the first sealing block 40 and the second sealing block 50 are placed in the first chamber 13, and after the vacuum pumping operation or the expansion shaping operation in the bag is completed, the first sealing block 40 and the second sealing block 50 are closed for sealing operation.

Of course, in another embodiment, the first sealing block 40 is integrally provided with the first spacer block 112 and/or the second sealing block 50 is integrally provided with the second spacer block 122. Specifically, when the first chamber 13 and/or the second chamber 14 are evacuated, the first sealing block 40 and the second sealing block 50 are not activated, and when the evacuation and/or the expansion and shaping operations in the bag are completed, the first sealing block 40 or the second sealing block 50 is activated to seal the package bag 70.

According to some embodiments of the application, referring to fig. 1 to 4, further comprising: a first shaping block 80 and a second shaping block 90;

The first 80 and second 90 shaping blocks are disposed in the second chamber 14;

the first shaping block 80 and the first bin 11 are arranged to move relatively along the height direction, the second shaping block 90 and the second bin 12 are arranged to move relatively along the height direction, and the first shaping block 80 and the second shaping block 90 move synchronously.

The first shaping block 80 and the second shaping block 90 are oppositely arranged, the first shaping block 80 is slidably arranged on the first bin body 11, specifically, one end of the first shaping block 80 is connected with a sliding block, the sliding block is slidably arranged on a sliding rail, the sliding rail is connected with the side wall of the first bin body 11, and the sliding rail is arranged along the vertical direction; the second shaping block 90 is similar, the second shaping block 90 is slidably arranged on the second bin body 12, specifically, one end of the second shaping block 90 is connected with a sliding block, the sliding block is slidably arranged on a sliding rail, the sliding rail is connected with the side wall of the second bin body 12, and the sliding rail is arranged along the vertical direction. The slide rails and the sliders are used to drive the first shaping block 80 and the second shaping block 90 to move in the height direction.

In actual operation, the first shaping block 80 and the second shaping block 90 move downward to a specified position along the height direction, so that the accommodating portion 72 is further shaped. When the first and second housing bodies 11, 12 are closed to form the second chamber 14, the first and second shaping blocks 80, 90 are then closed to clamp the package bag 70. Specifically, after the second chamber 14 is formed, a gap is provided between the first shaping block 80 and the second shaping block 90, and the gap is used for accommodating the packaging bag.

The vacuumizing mechanism is used for pumping the gas in the second chamber 14 through the pumping hole 60 so that negative pressure is formed in the second chamber 14; the first shaping block 80 and the second shaping block 90 then move downward, so that the gas in the hollow portion 71 enters the accommodating portion 72, and the accommodating portion 72 of the packaging bag 70 is further inflated and shaped. Alternatively, the first shaping block 80 is moved downward in synchronization with the second shaping block 90 while the vacuum is drawn.

Of course, in some embodiments, the first shaping block 80 and the second shaping block 90 may also move downward when the second cavity 14 breaks the vacuum.

It should be further noted that, when the first shaping block 80 and the second shaping block 90 move downward for shaping, the first sealing block 40 and the second sealing block 50 clamp the packaging bag to prevent the packaging bag from moving downward under the driving of the first shaping block 80 and the second shaping block 90. Preferably, the package is sealed while being clamped so that the package is more firmly adhered to the first and second sealing blocks 40 and 50 by the viscosity generated by the heat sealing; further preventing the first 80 and second 90 plastic blocks from moving the bag downward.

According to some embodiments of the present application, first sealing block 40 and second sealing block 50 are positioned below first spacer block 112 and second spacer block 122, and first sealing block 40 is positioned above first shaping block 80, and second sealing block 50 is positioned above second shaping block 90. When the sealing operation is required for the packing bag, the first sealing block 40 and the second sealing block 50 are closed and the sealing operation is performed for the packing bag. It should also be noted that, in some embodiments, the first sealing block 40 and the first isolation block 112 are integrally provided; or the second sealing block 50 and the second isolating block 122 are integrally provided.

In some preferred embodiments, if the container of the packaging bag 70 needs to be filled with nitrogen to protect the articles in the bag, the air in the packaging bag 70 is pumped through the first chamber 13, and the nitrogen is filled when the first chamber 13 is refilled with air, and the second chamber 14 is vacuumized, so that the container of the packaging bag 70 is inflated, and the nitrogen in the first chamber 13 is sucked into the container, thereby completing the nitrogen filling. And subsequent receptacle reshaping and optionally receptacle evacuation or no evacuation, followed by a bag 70 sealing operation by means of the first sealing block 40 and the second sealing block 50.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A sealing apparatus for sealing a package bag, the package bag including a receiving portion at a lower portion of a bag body and an empty portion at an upper portion of the bag body, the apparatus comprising:

the bag placing bin comprises a first bin body and a second bin body which are opposite to each other, the first bin body and the second bin body are arranged in a reciprocating mode in the horizontal direction, a first cavity and a second cavity are formed when the first bin body and the second bin body are folded in the horizontal direction, and the first cavity is located above the second cavity;

2. The sealing apparatus of claim 1, further comprising: the bag receiving seat is arranged in the second cavity and used for supporting the packaging bag.

3. The sealing apparatus of claim 2, further comprising:

the displacement assembly is in transmission connection with the bag receiving seat and is used for driving the bag receiving seat to move along the height and/or the horizontal direction.

4. A closure apparatus in accordance with claim 3, wherein said displacement assembly comprises:

5. The sealing apparatus of claim 4, wherein the horizontal displacement assembly comprises a ram and a reset member;

6. The sealing apparatus of claim 4, wherein said horizontal displacement assembly is coupled to said first cartridge body.

7. The sealing apparatus of claim 4, wherein the displacement assembly comprises: a height displacement assembly; the height displacement assembly is arranged along the height direction and is used for driving the bag receiving seat to move along the height direction; the horizontal displacement assembly is arranged on the height displacement assembly, and the bag receiving seat is arranged on the horizontal displacement assembly.

8. The sealing apparatus of claim 1, wherein the first cartridge body comprises: the device comprises a first shell and a first isolation block, wherein the first isolation block is arranged in the first shell;

the second bin body comprises: the second isolation block is arranged in the second shell and is opposite to the first isolation block, and when the first bin body and the second bin body are folded in the horizontal direction, the first isolation block and the second isolation block separate a first chamber from a second chamber.

9. A closure device according to claim 1 or 8, further comprising: a first sealing block and a second sealing block;

The first sealing block and the second sealing block are arranged in the first chamber and/or the second chamber;

the first sealing block and the second sealing block are arranged in a reciprocating mode in the horizontal direction and used for sealing the packaging bag.

10. The sealing apparatus of claim 9, wherein the first cartridge body comprises: the device comprises a first shell and a first isolation block, wherein the first isolation block is arranged in the first shell;

the second bin body comprises: the second isolation block is arranged in the second shell, is arranged opposite to the first isolation block, and is used for isolating a first cavity from a second cavity when the first bin body and the second bin body are folded in the horizontal direction;

the first sealing block is integrated with the first isolation block, and/or the second sealing block is integrated with the second isolation block.

11. The sealing apparatus of claim 8, further comprising: a first shaping block and a second shaping block,

the first shaping block and the second shaping block are oppositely arranged in the second cavity;

The first shaping block and the first bin body are arranged in a relative motion mode along the height direction, the second shaping block and the second bin body are arranged in a relative motion mode along the height direction, and the first shaping block and the second shaping block synchronously move.

12. A sealing device as claimed in claim 1, wherein,

the second bin body comprises: the second shell and the second isolation block divide the second shell into a first cavity and a second cavity which are open, the openings of the first cavity and the second cavity face the first bin body, and the first cavity is positioned above the second cavity;

the first bin body comprises: the part of the first shell, which is opposite to the opening of the first cavity, is a flat plate, and when the first bin body and the second bin body are folded in the horizontal direction, the first cavity and the first shell are folded into a first cavity; and/or the part of the first shell opposite to the opening of the second cavity is a flat plate, and when the first bin body and the second bin body are folded in the horizontal direction, the second cavity and the first shell are folded into a second cavity.