CN220549289U - Bag opening equipment - Google Patents

Abstract

The utility model discloses bag opening equipment, wherein a bag placing cavity for accommodating a packaging bag is arranged in a bag placing bin; the sealing block is positioned above the bag placing bin, the first sealing block and the second sealing block do relative reciprocating motion in the horizontal direction, when the first sealing block and the second sealing block are folded in the horizontal direction, the packaging bag is positioned between the first sealing block and the second sealing block, the sealing block is in airtight fit with the bag placing bin, and the sealing block and the bag placing cavity are enclosed to form a closed bag placing cavity; the first adsorption unit is arranged on the inner wall of the bag placing bin; the second adsorption unit is arranged on two opposite walls of the first sealing block and the second sealing block. The first adsorption unit and the second adsorption unit are arranged, so that the expanded packaging bag can be kept in an open state, and meanwhile, when materials are prevented from being filled, the materials are bent and opened. After the packaging bag is inflated, the first adsorption unit adsorbs the side wall of the packaging bag; and a second adsorption unit adsorbing a sidewall of the packing bag so that the packing bag is opened with separation of the first sealing block and the second sealing block.

Description

Bag opening equipment

Technical Field

The utility model relates to the technical field of bag opening, in particular to bag opening equipment.

Background

Along with the great increase of market demand at present, a large amount of products on the market need to carry out mechanized packing and seal the operation to adapt to a large amount of product demands, take tealeaves as an example wherein, present tealeaves wrapping bag not only requires tealeaves to carry out good packing and multilayer sealed, still requires the appearance of the tealeaves wrapping bag after the packing to order to stack and further place in the box in order to carry out.

The common tea packaging bag structure comprises a top edge sealing area on the upper part of a packaging bag, a packaging area in the middle part of the packaging bag and a bottom edge sealing area positioned at the bottom of the packaging bag, wherein the packaging area is square, namely cuboid, so as to accommodate materials to be packaged.

In the past, the packaging mode is mostly manual, and in recent years, a plurality of packaging machines for tea packaging are appeared, and the packaging machines are mainly shaped by a poking rod mode; specifically, poking rods extend into the packaging bags from the bag openings, then the bottoms of the packaging bags are unfolded, however, some packaging bags are large and have insufficient rigidity, and after being unfolded, the poking rods cannot effectively support the packaging bags, so that the bag openings are closed, and materials cannot be filled.

Disclosure of Invention

In view of the above, the present application provides a bag opening apparatus that prevents the packaging bag from deforming during the material filling process.

To achieve the above object, the present application provides a bag opening apparatus comprising:

the bag placing bin is provided with a bag placing cavity for accommodating the packaging bag and an upper opening communicated with the bag placing cavity;

the sealing unit is positioned above the bag placing bin and comprises a first sealing block and a second sealing block, the first sealing block and the second sealing block are arranged in a reciprocating mode relatively in the horizontal direction so as to be folded or opened relatively, when the first sealing block and the second sealing block are folded, the packaging bag is clamped between the first sealing block and the second sealing block, and the sealing unit is in airtight fit with the upper opening of the bag placing bin so as to seal the bag placing cavity;

the first adsorption unit is arranged on the inner wall of the bag placing cavity and is used for adsorbing the packaging bag;

and/or a second adsorption unit disposed on opposite sidewalls of the first and second sealing blocks.

In some embodiments, the first adsorption unit comprises a plurality of first adsorption elements, and the plurality of first adsorption element arrays are arranged on the inner wall of the bag-placing bin.

In some embodiments, a plurality of the first adsorbent members are disposed on the inner wall of the bagging bin proximate the upper opening.

In some embodiments, the bagging cartridge comprises:

the bag receiving seat is used for supporting the bottom of the packaging bag;

the upper part of the vacuum frame is provided with the upper opening, the lower part of the vacuum frame is also provided with the lower opening, the vacuum frame and the bag receiving seat are arranged in a reciprocating mode relatively in the height direction, when the vacuum frame and the bag receiving seat are folded in the height direction, the lower opening is in airtight fit with the bag receiving seat, and the vacuum frame and the bag receiving seat are enclosed to form the bag placing cavity.

In some embodiments, the bagging cartridge further comprises: the first power source is in transmission connection with the bag receiving seat and used for driving the bag receiving seat to reciprocate along the height direction.

In some embodiments, the bag holder comprises: a bottom plate and a lifting plate; the bottom plate and the lifting plate are arranged in a reciprocating manner in the height direction; the bottom plate with the lower opening of vacuum frame can airtight cooperation, the lifter plate is located the bottom plate top and can stretch into in the vacuum frame, just the lifter plate is used for driving the wrapping bag and removes along the direction of height.

In some embodiments, the bag holder further comprises: the second power source is arranged below the bottom plate, the output end of the second power source penetrates through the bottom plate, the lifting plate is connected with the output end of the second power source, and the second power source is used for driving the lifting plate to reciprocate along the height direction.

In some embodiments, further comprising:

the two groups of the third adsorption units are respectively arranged on two opposite side walls of the bag placing bin, and the two groups of the third adsorption units are oppositely arranged;

the two groups of the third adsorption units are arranged in a reciprocating mode in the horizontal direction, and when the two groups of the third adsorption units are folded in the horizontal direction, the packaging bag is located between the two groups of the third adsorption units.

In some embodiments, further comprising:

the two third power sources penetrate through two opposite side walls of the bag placing bin;

the two groups of third adsorption units are respectively arranged at the output ends of the two third power sources, and the third power sources are used for driving the two groups of third adsorption units to move close to or away from each other.

In some embodiments, further comprising: the air extraction opening is positioned on the bag placing bin and is used for being connected with an air path of the vacuumizing mechanism.

Compared with the prior art, the packaging bag can be kept in an open state after being expanded through the arrangement of the first adsorption unit and the second adsorption unit, and meanwhile, when materials are prevented from being filled, the materials are bent and opened. Specifically, the second adsorption unit is arranged on the opposite side walls of the first sealing block and the second sealing block, and can adsorb the packaging bag, and the second adsorption unit adsorbs the packaging bag to synchronously separate along with the separation of the first sealing block and the second sealing block, so that the bag mouth of the packaging bag is opened; meanwhile, the second adsorption unit can continuously adsorb the side wall of the packaging bag when filling materials, and keep the opening state of the opening of the packaging bag so as to prevent the packaging bag from deforming when filling materials. The first adsorption unit can adsorb the wrapping bag of attaching on putting the bag storehouse inner wall, and when filling the material, first adsorption unit keeps the open condition to maintain the state that the wrapping bag body is attached at putting the bag storehouse inner wall, prevent the wrapping bag deformation of collapsing. Based on the scheme, the whole shape of the packaging bag can be maintained in the material filling process, and when the packaging bag is large and the rigidity of the packaging bag is insufficient, the scheme can effectively support the packaging bag so as to be convenient for material filling.

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

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 purposes of illustrating the 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 bag opening apparatus according to an embodiment;

FIG. 2 is a front view of a bag opening apparatus according to an embodiment;

FIG. 3 is a cross-sectional view of a bag-opening apparatus according to an embodiment;

FIG. 4 is a diagram showing a construction of a bag holder and a vacuum frame according to an embodiment;

FIG. 5 is a flowchart illustrating the method of folding the bag holder and the vacuum frame according to the embodiment;

FIG. 6 is a state diagram of the third adsorption unit in the embodiment when the third adsorption unit is far away from each other;

FIG. 7 is a diagram showing a structure of vacuum pumping of a bag-placing cavity according to an embodiment;

FIG. 8 is a state diagram of the first and second seal blocks in accordance with the embodiments;

FIG. 9 is a diagram of a state of loading materials according to the embodiment;

fig. 10 is a view showing a state in which the package is removed from the lower opening according to the embodiment.

Reference numerals illustrate:

10. placing in a bag bin; 20. a sealing unit; 30. a first adsorption unit; 40. a second adsorption unit; 50. a first power source; 60. a second power source; 70. a third power source; 80. a third adsorption unit; 90. packaging bags;

12. a vacuum frame; 13. a bag receiving seat; 14. placing a bag cavity;

21. a first sealing block; 22. a second sealing block;

121. an upper opening; 122. a lower opening;

131. a bottom plate; 132. and a lifting plate.

Detailed Description

Embodiments of the technical solutions 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 solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection 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 and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first," "second," etc. 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 present 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, which means that three relationships may exist, for example, a and/or B may mean: 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" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural sheets" refers to 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 describing the embodiments of the present application and for simplifying the description, rather than indicating or implying 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 are to 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 the specific circumstances.

Referring to fig. 1 to 10, the present embodiment provides a bag-expanding apparatus including:

a bag placing bin 10, wherein the bag placing bin 10 is provided with a bag placing cavity 14 for accommodating the packaging bag 90 and an upper opening 121 communicated with the bag placing cavity 14;

the sealing unit 20 is positioned above the bag placing bin 10, the sealing unit 20 comprises a first sealing block 21 and a second sealing block 22, the first sealing block 21 and the second sealing block 22 are arranged in a reciprocating manner relatively in the horizontal direction so as to be relatively folded or opened, when the first sealing block 21 and the second sealing block 22 are folded, the packaging bag 90 is clamped between the first sealing block 21 and the second sealing block 22, and the sealing unit 20 is in airtight fit with the upper opening of the bag placing bin 10 so as to seal the bag placing cavity 14;

the first adsorption unit 30, the first adsorption unit 30 is disposed on the inner wall of the bag placing cavity 14, and the first adsorption unit 30 is used for adsorbing the packaging bag 90;

and a second adsorption unit 40, wherein the second adsorption unit 40 is arranged on the opposite side walls of the first sealing block 21 and the second sealing block 22.

The embodiment also provides a bag opening method which can be realized by using the bag opening equipment. The method comprises the following steps:

Placing the packaging bag 90 in the bag placing cavity 14 of the bag placing bin 10, and driving the first sealing block 21 and the second sealing block 22 which are positioned above the bag placing bin 10 to be folded in the horizontal direction, so that the first sealing block 21 and the second sealing block 22 clamp the packaging bag 90, and the lower parts of the first sealing block 21 and the second sealing block 22 are propped against the upper opening 121 of the bag placing bin to seal the bag placing cavity 14;

driving a vacuum mechanism communicated with the bag placing cavity 14 to extract gas in the bag placing cavity 14, so that the packaging bag 90 is expanded and attached to the inner wall of the bag placing cavity 14;

driving the first adsorption unit 30 positioned on the inner wall of the bag placing cavity 14 to adsorb the bag body of the packaging bag 90; driving the second adsorption unit 40 located on the opposite side walls of the first sealing block 21 and the second sealing block 22 to adsorb the sidewall of the mouth of the packing bag 90;

the first sealing block 21 and the second sealing block 22 are driven to be separated in the horizontal direction so that the mouth of the packing bag 90 is opened.

The present application is particularly suitable for expanding the package 90 having a large volume, and can maintain the expanded package 90 in the expanded state. It should be further noted that, when the large package bag 90 is opened, the package bag 90 after being opened collapses and cannot be filled with objects due to the large volume of the package bag 90 itself, the inability of the folds to support and maintain the shape of the package bag (the shape when being opened) after being opened, and the like.

As shown in fig. 5, the package 90 which has not been opened is sheet-shaped; as shown in fig. 8, the bag 90 is opened to provide a hollow top opening for receiving an item (preferably tea leaves) therein, and an opening for the item to enter and exit.

Referring to fig. 1, the bag-placing bin 10 is hollow, the top of the bag-placing bin 10 is provided with an upper opening 121, the hollow is a bag-placing cavity 14, and the bag-placing cavity 14 is communicated with the upper opening 121 of the bag-placing bin 10. The packaging bag 90 moves downwards from the upper opening 121 of the bag placing bin 10, at this time, the packaging bag 90 is not opened, the packaging bag 90 is sheet-shaped, and the lower part of the sheet-shaped packaging bag 90 is placed in the bag placing cavity 14; the mouth of the package 90 now protrudes from the upper opening 121 and is positioned outside the pouch compartment 10.

Referring to fig. 5 to 6, the sealing unit 20 includes a first sealing block 21 and a second sealing block 22, the first sealing block 21 and the second sealing block 22 are disposed opposite to each other, and the first sealing block 21 and the second sealing block 22 are disposed above the pouch 10. The first sealing block 21 and the second sealing block 22 are used for clamping the packaging bag 90 and forming a sealed bag placing cavity 14 with the bag placing bin 10.

Specifically, the lower edges of the first sealing block 21 and the second sealing block 22 are attached to the upper edge of the bag placing bin 10, that is, when the first sealing block 21 and the second sealing block 22 are folded, the lower edges of the first sealing block 21 and the second sealing block 22 are in contact with the upper edge of the bag placing bin 10, so that after the first sealing block 21 and the second sealing block 22 are folded, the first sealing block 21 and the second sealing block 22 clamp the packaging bag 90 placed on the bottom of the bag placing bin 10, and the bag placing cavity 14 is in a sealed state.

Of course, in other embodiments, the first sealing block 21 and the second sealing block 22 may clamp the packaging bag 90 first, and the bag cavity 14 is still in an open state; then, the lower edges of the first sealing block 21 and the second sealing block 22 are attached to the upper edge of the bag placing bin 10 by moving, at this time, the portion of the packaging bag 90 located below the sealing unit 20 is placed in the bag placing cavity 14, and the bag placing cavity 14 is in a sealed state.

When the bag accommodating cavity 14 is in a closed state and the packaging bag 90 is clamped by the sealing unit 20, the vacuumizing mechanism extracts the air in the bag accommodating cavity 14, at this time, the air pressure in the packaging bag 90 is unchanged because the air pressure in the bag accommodating cavity 14 is reduced, at this time, under the action of the difference between the internal air pressure and the external air pressure, the part of the packaging bag 90 in the bag accommodating cavity 14 is expanded and fills the bag accommodating cavity 14, and at this time, the part of the packaging bag 90 below the sealing unit 20, namely the bag body of the packaging bag 90 is in a stretched state.

The first sealing block 21 and the second sealing block 22 are folded to clamp the package bag 90, and have the following three conditions: firstly, a gap is formed between the first sealing block 21 and the second sealing block 22, the first sealing block 21 and the second sealing block 22 just clamp the packaging bag 90, in this case, external gas can enter the bag placing cavity 14 from the gap, and the air pressure in the bag placing cavity 14 is still smaller than the air pressure in the packaging bag 90 due to the fact that the vacuumizing speed is far greater than the air inlet speed, and at the moment, the packaging bag 90 can still expand; and when the gas in the packing bag 90 is insufficient, the gas can be inhaled from the outside. Secondly, the first sealing block 21 and the second sealing block 22 are in contact with each other, at the moment, the first sealing block 21 and the second sealing block 22 do not exert force mutually, external gas is not communicated with the bag placing cavity 14, and when the vacuumizing mechanism extracts gas in the bag placing cavity 14, the air pressure in the bag placing cavity 14 is reduced; since the inner wall of the packing bag 90 is smoother than the junction of the first sealing block 21 and the second sealing block 22, the outside air can enter the packing bag 90 from the bag mouth and expand the packing bag 90. Thirdly, the first sealing block 21 and the second sealing block 22 are in contact with each other, meanwhile, the first sealing block 21 and the second sealing block 22 exert force mutually, at the moment, external gas cannot enter the bag placing cavity 14 and the inside of the packaging bag 90, when the vacuum pumping operation is carried out on the bag placing cavity 14, the air pressure in the packaging bag 90 is kept unchanged, the air pressure of the bag placing cavity 14 is reduced, and the packaging bag 90 is inflated.

The first sealing block 21 and the second sealing block 22 are respectively connected with a fourth power source, and the fourth power source is used for driving the first sealing block 21 and the second sealing block 22 to move. The fourth power source may be a motor, a cylinder.

Folding in this application refers to the process or end-point of two objects approaching each other or touching a centered object.

The first adsorption unit 30 is disposed on the inner wall of the bag-placing bin 10, and the first adsorption unit 30 is used for adsorbing the bag wall of the inflated packaging bag 90; preferably, the first adsorption unit 30 is disposed on the opposite inner wall of the pouch compartment 10. Specifically, when the packing bag 90 is inflated, the wall of the packing bag 90 is attached to the inner wall of the bag storage compartment 10, and the first adsorption unit 30 adsorbs the packing bag 90; at the same time, when the first sealing block 21 and the second sealing block 22 are separated and filled with materials, the first adsorption unit 30 is kept in an opened state, so that the materials are prevented from bending the packaging bag 90 when the materials are filled. In some embodiments, the first adsorption unit 30 may also be used to extract gas from the interior of the bag-holding chamber 14, and the first adsorption unit 30 adsorbs the packaging bag 90 when the packaging bag 90 is inflated and then attached to the sidewall of the bag-holding compartment 10.

Referring to fig. 7 to 9, the second adsorption unit 40 is disposed on the first and second sealing blocks 21 and 22, and preferably, the second adsorption unit 40 is disposed on opposite sidewalls of the first and second sealing blocks 21 and 22, and the second adsorption unit 40 is used to adsorb the packing bag 90. Specifically, when the packing bag 90 is inflated, the second adsorption unit 40 adsorbs the region of the packing bag 90 clamped by the sealing unit 20, and then when the first sealing block 21 and the second sealing block 22 are relatively far apart, the second adsorption unit 40 adsorbs the opposite side walls of the packing bag 90, so that the packing bag 90 is separated by the clamped region. While keeping the second adsorption unit 40 in an opened state when loading the material, thereby preventing the material from bending the packing bag 90 when loading the material.

The first adsorption unit and the second adsorption unit are vacuum chucks, the vacuum chucks are connected with a vacuumizing mechanism, and the vacuumizing mechanism is used for sucking gas in the first adsorption unit and the second adsorption unit through extracting gas in the first adsorption unit and the second adsorption unit, so that the first adsorption unit and the second adsorption unit adsorb packaging bags. Of course, in some embodiments, the first adsorption unit is a through hole arranged on the inner wall of the bag placing bin, the second adsorption unit is a hole through hole arranged on the first sealing block and the second sealing block, and the vacuumizing mechanism is communicated with the through hole.

Preferably, during the material filling operation, the first adsorption unit 30 and the second adsorption unit 40 are simultaneously opened to ensure that the bag is not deformed due to the material filling after the bag is supported by the negative pressure.

Of course, in some embodiments, either the first adsorption unit 30 or the second adsorption unit 40 may be turned on separately as appropriate based on different stages of the material loading operation; firstly, when the filling height of the material is higher than that of the first adsorption unit, the first adsorption unit can be stopped to adsorb the packaging bag, and the packaging bag is not easy to collapse and deform under the support of the material; secondly, when the upper edge of the packaging bag 90 is slightly higher than the first sealing block and the second sealing block, and when the first sealing block and the second sealing block are far away, the clamped part of the packaging bag is short, the lower part of the packaging bag applies an outward pulling force to the opening of the packaging bag, so that the opening of the packaging bag is opened; only the first adsorption unit may be started at this time. Third, only the second adsorption unit is started, the first adsorption unit is not started after the expansion, the opening of the packaging bag is opened through the second adsorption unit, and the shape of the packaging bag is maintained.

Unlike the prior art, the above-mentioned technical solution, through the arrangement of the first adsorption unit 30 and the second adsorption unit 40, enables the inflated packing bag 90 to maintain an open state, and simultaneously prevents the packing bag 90 after the material is bent and opened when the material is filled. Specifically, the second adsorption unit 40 is capable of adsorbing the packing bag 90, and opening the mouth of the packing bag 90 under the driving of the first sealing block 21 and the second sealing block 22; meanwhile, the second adsorption unit 40 can be kept in an opened state when the material is filled, and continuously adsorbs the side wall of the packing bag 90 to prevent the packing bag 90 from being deformed when the material is filled. The first adsorption unit 30 can adsorb the packing bag 90 attached to the inner wall of the bag-placing bin, and when the material is filled, the first adsorption unit 30 is kept in an opened state to prevent the packing bag 90 from collapsing and deforming.

According to some embodiments of the present application, referring to fig. 1 and 6, the number of the first adsorption units 30 is plural, and the plurality of the first adsorption units 30 are arranged on the inner wall of the bag-placing bin in an array. The first adsorption unit 30 may be disposed at an upper portion, a middle portion and/or a lower portion of the bagging bin; specifically, the arrays may be arranged at the same height (i.e., a lateral array), may be arranged at different heights in the height direction (i.e., a longitudinal array), or may be arranged in the lateral and longitudinal directions.

Further, in some embodiments, the first adsorbing unit 30 includes a plurality of first adsorbing members, the plurality of first adsorbing member arrays are disposed on the inner wall of the bag-placing bin and close to the upper opening, and the first adsorbing members are used for adsorbing the packaging bags located at the upper opening. Of course, in other embodiments, the first adsorption unit 30 further includes a plurality of second adsorption elements, the second adsorption elements are disposed at the middle of the inner wall of the bag-placing bin, the second adsorption elements are used for adsorbing the packaging bags located at the middle of the bag-placing bin, and the second adsorption elements are disposed below the first adsorption elements. Of course, in other embodiments, the first adsorbing unit 30 further includes a plurality of third adsorbing members, a plurality of third adsorbing member arrays are disposed on the inner wall of the bag-placing bin and close to the lower opening, and the third adsorbing members are used for adsorbing the packaging bags located at the lower opening. The third adsorption piece is arranged below the second adsorption piece.

Based on the above bag opening apparatus, in the bag opening method of this embodiment, the driving the first adsorption unit 30 located on the inner wall of the bag placing cavity 14 to adsorb the bag body of the packaging bag 90 includes the steps of:

the plurality of first adsorbing members positioned near the upper opening 121 are driven to adsorb the packing bag 90 attached near the upper opening 121.

In some embodiments, the inner wall of the pocket 14 is provided with a recess for receiving the first adsorption unit 30, and the first adsorption unit 30 is disposed in the recess. When the packing bag 90 is inflated, the first adsorption unit 30 adsorbs the packing bag 90 at the upper opening 121. Further, since the material loading direction is from top to bottom and the upper portion of the packing bag 90 is also most easily bent and deformed, deformation of the upper portion of the packing bag 90 can be avoided by the first suction member provided near the upper opening 121 of the bag housing 10.

In actual operation, when the negative pressure expansion of the packing bag 90 is completed, the first adsorption unit 30 is activated and adsorbs the packing bag 90 attached near the upper opening, and the second adsorption unit 40 adsorbs the packing bag 90 clamped by the first and second sealing blocks 21 and 22.

According to some embodiments of the present application, referring to fig. 1 to 3, the pouch cartridge 10 includes:

the bag receiving seat 13 is used for supporting the bottom of the packaging bag 90;

the vacuum frame 12, vacuum frame 12 is located and connects bag seat 13 top, vacuum frame 12 and connect bag seat 13 in the relative reciprocating motion setting of direction of height, put the upper opening 121 of bag storehouse 10 and be located vacuum frame 12's upper portion, vacuum frame 12 lower part still has lower opening 122, lower opening 122 and connect bag seat 13 airtight cooperation, connect bag seat 13 with vacuum frame 12 closes in the direction of height, connect bag seat 13 and vacuum frame 12 enclose to close and form put the bag chamber 14.

Based on the bag opening device with the bag placing bin 10 structure, in the bag opening method of this embodiment, before the step of placing the packaging bag 90 in the bag placing cavity 14 of the bag placing bin 10, driving the first sealing block 21 and the second sealing block 22 located above the bag placing bin 10 to close in the horizontal direction further includes:

the bag receiving seat 13 positioned below the vacuum frame 12 is driven to be folded with the vacuum frame 12 in the height direction, so that the bag receiving seat 13 is in airtight fit with the lower opening 122 of the vacuum frame 12 and forms a bag placing cavity 14.

The bag receiving seat 13 is used for supporting the packaging bag 90, specifically, the packaging bag 90 falls down and is placed on the bag receiving seat 13.

The middle part of the vacuum frame 12 is of a hollow structure, the upper part and the lower part are provided with openings, and the upper opening 122 and the lower opening 122 are communicated with the hollow area; that is, the upper opening of the vacuum frame 12 is the upper opening 121 of the bag-placing compartment 10, and the lower opening of the vacuum frame 12 is the lower opening 122. The vacuum frame 12 and the bag receiving seat 13 move relatively along the height direction; specifically, before the negative pressure expansion is required, the vacuum frame 12 and the bag receiving seat 13 are closed in the height direction, and at this time, the lower opening 122 of the vacuum frame 12 is in airtight fit with the bag receiving seat 13.

Further, the packaging bag 90 may be placed on the bag receiving seat 13 before the vacuum frame 12 and the bag receiving seat 13 are closed, or may be dropped onto the bag receiving seat 13 when the vacuum frame 12 and the bag receiving seat 13 are closed, or may be placed on the bag receiving seat 13 after the vacuum frame 12 and the bag receiving seat 13 are closed. Referring to fig. 10, after the material filling operation is completed, the vacuum frame 12 is separated from the bag receiving seat 13 along the height direction so as to take out the packaging bag 90 containing the material.

Referring to fig. 4 to 5, in actual operation, the vacuum frame 12 and the bag receiving seat 13 are folded in the height direction to form a bag storage bin 10 with an upper opening, and the packaging bag 90 in an unopened state falls onto the bag receiving seat 13; the first sealing block 21 and the second sealing block 22 are then driven to close, so that the closed bag-placing cavity 14 is formed.

According to some embodiments of the present application, referring to fig. 1 to 3, the bag house 10 further includes: the first power source 50 is in transmission connection with the bag receiving seat 13, and the first power source 50 is used for driving the bag receiving seat 13 to reciprocate along the height direction.

Accordingly, in the bag opening method of the present embodiment, the step of driving the bag receiving seat 13 located below the vacuum frame 12 to close with the vacuum frame 12 in the height direction, so that the bag receiving seat 13 is hermetically matched with the lower opening 122 of the vacuum frame 12 and forms the bag placing cavity 14 includes the steps of:

the first power source 50 driving the bag receiving seat 13 to drive the bag receiving seat 13 to move along the height direction, so that the bag receiving seat 13 is folded with the vacuum frame 12.

The output end of the first power source 50 is in transmission connection with the bag receiving seat 13, in the embodiment, the first power source 50 is a motor, a gear is arranged on the output end of the first power source 50, the first power source 50 drives the gear to rotate, a rack is arranged on the side wall of the bag receiving seat 13, and the gear is meshed with the rack; when the vacuum frame 12 and the bag receiving seat 13 need to be driven to be folded or separated, the first power source 50 drives the gear to rotate, so as to drive the bag receiving seat 13 to move upwards to be in airtight fit with the lower opening 122 of the vacuum frame 12 or drive the bag receiving seat 13 to move downwards to be separated from the lower opening 122 of the vacuum frame 12.

Of course, in other embodiments, the first power source 50 may also be a cylinder, a hydraulic rod, a telescopic rod, etc.; at this time, the output end of the first power source 50 is directly connected to the bag receiving seat 13.

In actual use, the first power source 50 drives the bag holder 13 through a transmission member or directly, so that the bag holder 13 moves in the height direction. Specifically, before the package bag 90 falls, the first power source 50 drives the rack to move upwards along the height direction through the gear, so as to drive the bag receiving seat 13 to move upwards, and the bag receiving seat 13 and the lower opening 122 of the vacuum frame 12 are hermetically matched to form the bag placing bin 10. After the material filling operation is completed, the first power source 50 drives the rack to move downwards along the height direction through the gear, so as to drive the bag receiving seat 13 to move downwards, and the bag receiving seat 13 is separated from the lower opening 122 of the vacuum frame 12, so that the packaging bag 90 is conveniently taken out.

According to some embodiments of the present application, referring to fig. 4 to 5, the bag receiving seat 13 includes: a bottom plate 131 and a lifting plate 132; the bottom plate 131 is adapted to the opening at the lower part of the vacuum frame 12, the lifting plate 132 is disposed above the bottom plate 131, and the bottom plate 131 and the lifting plate 132 are disposed to reciprocate in the height direction.

Based on the above bag opening apparatus, in the bag opening method of the present embodiment, before or after the step of driving the bag receiving seat 13 located below the vacuum frame 12 to close with the vacuum frame 12 in the height direction, so that the bag receiving seat 13 is hermetically matched with the lower opening 122 of the vacuum frame 12 and forms the bag placing cavity 14, the method further includes the steps of:

the bag receiving seat 13 comprises: a bottom plate 131 and a lifting plate 132;

the lifting plate 132 above the bottom plate 131 is driven to move in the height direction so that the lifting plate reaches a preset height.

The bottom plate 131 is adapted to the lower opening 122 of the vacuum frame 12, which means that the bottom plate 131 is air-tightly matched with the lower opening 122 when the first power source 50 drives the bag receiving seat 13 and the vacuum frame 12 to close. The bottom plate 131 is used for being in airtight fit with the lower opening 122 to prevent the bag placing bin 10 from leaking air; the lifting plate 132 is used to adjust the height to fit different sized packages 90. Specifically, when the packing bag 90 is long, the lifting plate 132 moves down; when the packing bag 90 is short, the lifting plate 132 moves upward. In actual operation, the height of the lifting plate 132 can be adjusted, and then the bottom plate 131 is driven to move upwards to be in airtight fit with the lower opening 122; the bottom plate 131 can be driven to be hermetically matched with the lower opening 122, and then the lifting plate 132 is driven to reach a preset height.

The length of the lifting plate 132 is smaller than the length of the lower opening 122, and the width of the lifting plate 132 is smaller than the width of the lower opening 122, thereby ensuring that the lifting plate 132 can pass through the lower opening 122.

The predetermined height is the distance between the lower opening 122 and the top surface of the lifting plate 132, and is based on the length of the package 90. Specifically, in order to avoid the sagging of the bag opening of the packing bag 90 due to the gravity, when the first sealing block 21 and the second sealing block 22 are folded, the bag opening is slightly higher than the upper edges of the first sealing block 21 and the second sealing block 22 or the bag opening is flush with the upper edges of the first sealing block 21 and the second sealing block 22 or the bag opening is higher than the second adsorption unit 40, so that the packing bag 90 can be adsorbed by the second adsorption unit 40 while the first sealing block 21 and the second sealing block 22 clamp the packing bag 90, and the effect that the portion of the packing bag 90 higher than the upper edges of the first sealing block 21 and the second sealing block 22 is not bent downwards can be obtained.

According to some embodiments of the present application, referring to fig. 1, the bag holder 13 further includes: the second power source 60, the second power source 60 is disposed below the bottom plate 131, and the output end of the second power source 60 penetrates through the bottom plate 131, the lifting plate 132 is connected with the output end of the second power source 60, and the second power source 60 is used for driving the lifting plate 132 to reciprocate along the height direction.

Based on the above bag opening apparatus, in the bag opening method of the present embodiment, the step of driving the lifting plate 132 located above the bottom plate 131 to move along the height direction so that the lifting plate 132 reaches the preset height includes the steps of: the lifting plate 132 in driving connection with the second power source 60 is driven to move in the height direction until the lifting plate 132 reaches a preset height.

The second power source 60 may be a cylinder, a hydraulic rod, a telescopic rod, etc.; at this time, the output end of the second power source 60 is directly connected to the lifting plate 132. Specifically, the second power source 60 is disposed below the bottom plate 131, and the output D end of the second power source 60 penetrates through the bottom plate 131 and is connected to the lifting plate 132 above the bottom plate 131. The elevation of the elevation plate 132 is controlled by driving the second power source 60, thereby determining the elevation of the elevation plate 132.

In other embodiments, the lifting plate 132 may be in driving connection with the vacuum frame 12 through the lifting plate 132, so as to achieve the lifting function. That is, a lifting unit is provided on the inner wall of the vacuum frame 12. One end of the lifting unit is connected with the lifting plate 132, the other end of the lifting unit is connected with the inner wall of the vacuum frame 12, the lifting unit can drive the lifting plate 132 to move along the height direction so as to adjust the height of the packaging bag 90 in the bag bin 10, and when the packaging bag 90 needs to be removed, the lifting unit drives the lifting plate 132 to be removed from the vacuum frame 12. Of course, since the lifting unit is disposed in the bag-placing cavity 14, the packaging bag 90 will be attached to the inner wall of the vacuum frame 12 and the lifting unit when the vacuum is expanded

In actual operation, when the bottom plate 131 is in airtight fit with the vacuum frame 12, the second power source 60 drives the lifting plate 132 to move to a preset height along the height direction, so that the mouth of the packaging bag 90 is slightly higher than the upper edge of the first sealing block 21.

According to some embodiments of the present application, referring to fig. 5 to 7, further comprising:

the two groups of the third adsorption units 80 are arranged on two opposite side walls of the bag placing bin 10, and the two groups of the third adsorption units 80 are arranged opposite to each other;

the two groups of third adsorption units 80 are arranged in a reciprocating manner in the horizontal direction, and when the two groups of third adsorption units 80 are folded in the horizontal direction, the packaging bag 90 is positioned between the two groups of third adsorption units 80.

The number of the third power sources 70 is two, and the output ends of the two third power sources 70 penetrate through two opposite side walls of the bag placing bin 10;

the two groups of third adsorption units 80 are respectively disposed at output ends of the two third power sources 70, and the third power sources 70 are used for driving the two groups of third adsorption units 80 to move close to or away from each other.

Based on the above bag opening apparatus, in the bag opening method of the present embodiment, before the step of driving the vacuum mechanism in communication with the bag placing cavity 14 to draw the gas in the bag placing cavity 14 so that the packaging bag 90 is inflated and attached to the inner wall of the bag placing cavity 14, the method includes the steps of:

The third adsorption units 80 which are in transmission connection with the third power source 70 and are arranged oppositely are driven to move close to each other, so that the two third adsorption units 80 are respectively contacted with two opposite side walls of the packaging bag 90;

driving the third adsorption unit 80 to adsorb the packing bag 90;

the step of driving the vacuum mechanism communicated with the bag placing cavity 14 to extract the gas in the bag placing cavity 14 comprises the following steps:

the third power source 70 drives the two third adsorption units 80 to move away from each other.

The third adsorption unit 80 is placed in the pocket 14, and the third adsorption unit 80 moves in the horizontal direction; the third adsorption units 80 are two groups, and the two groups of the third adsorption units 80 are respectively and telescopically arranged on the opposite inner side walls of the bag placing bin 10. It should be further noted that, under the first adsorption unit of the third adsorption unit 80 or the third adsorption unit is disposed in the middle of the bag placing bin, when the two groups of third adsorption units 80 fold to adsorb the packaging bag 90, the adsorbed position is located in the middle of the packaging bag 90, and the third adsorption unit 80 is used for adsorbing the side wall of the packaging bag 90, so that the packaging bag 90 can be further ensured not to be distorted when the packaging bag 90 is filled with materials while the bag is opened in an auxiliary manner.

After the package bag 90 falls onto the bag receiving seat 13, the two groups of third adsorption units 80 are folded, so that the two groups of third adsorption units 80 adsorb two sidewalls of the package bag 90 respectively. Then, in the negative pressure expansion process, the two groups of third adsorption units 80 relatively move away; or the packaging bag 90 is pulled to two sides before the negative pressure expansion, so that the packaging bag 90 is opened, and external air can be extracted through the bag opening in the process of opening the packaging bag 90.

When the packing bag 90 is filled with the material, the third adsorption unit 80 may be in an opened state to continuously adsorb the sidewall of the packing bag 90, so as to prevent the packing bag 90 from being distorted; in some implementations, the closed state is also possible.

The third power sources 70 are arranged at two sides outside the bag placing bin 10, the output ends of the third power sources 70 penetrate through the side wall of the bag placing bin 10, the third adsorption units 80 are arranged on the output ends of the third power sources 70, and the two third power sources 70 are respectively used for driving the two groups of third adsorption units 80.

In actual operation, when the packaging bag 90 falls onto the bag receiving seat 13, the third power source 70 drives the third adsorption units 80 located in the bag placing bin 10 to fold, so that two sets of the third adsorption units 80 oppositely arranged adsorb two sides of the packaging bag 90; the third power source 70 drives the two groups of third adsorption units 80 to separate from each other, and drives the package bag 90 to open.

According to some embodiments of the application, further comprising: and the air extraction opening is positioned on the bag placing bin 10 and is used for being connected with an air path of the vacuumizing mechanism.

Based on the above bag opening apparatus, in the bag opening method of this embodiment, the step of driving the vacuum mechanism that is in communication with the bag placing cavity 14 to draw the gas in the bag placing cavity 14 further includes the steps of:

The vacuum mechanism is driven to pump the gas in the sealed bag placing cavity 14 through the pumping hole.

Specifically, the air extraction opening penetrates through the bag placing bin 10, and the vacuumizing mechanism extracts air in the bag placing cavity 14 through the air extraction opening; of course, in some embodiments, gas may also be withdrawn through the first adsorption unit 30 or the third adsorption unit 80.

In actual operation, after the sealed bag placing cavity 14 is formed, the vacuumizing mechanism is driven to suck the gas in the bag placing cavity 14, so that the bag placing cavity 14 forms negative pressure, and the bag opening operation of the packaging bag 90 is realized.

In summary, the specific use flow of the bag opening device of the embodiment of the present application is as follows, the first power source 50 drives the bottom plate 131 to rise along the height direction through the rack and pinion, so that the bottom plate 131 is in airtight fit with the lower opening 122 of the vacuum frame 12; the second power source 60 drives the lifting plate 132 above the bottom plate 131 to move along the height direction, so that the bag receiving seat 13 moves to a preset height along the height direction. The packaging bag 90 is driven to fall on the lifting plate 132, at this time, the packaging bag 90 is arranged between the first sealing block 21 and the second sealing block 22, and the first sealing block 21 and the second sealing block 22 are folded to clamp the packaging bag 90 and form a sealed bag placing cavity 14; the two third adsorption units 80 disposed opposite to each other are close to each other, and the two third adsorption units 80 disposed opposite to each other adsorb both sides of the packing bag 90. The vacuumizing mechanism is driven to suck the gas in the bag placing cavity 14, so that negative pressure is formed in the sealed bag placing cavity 14.

At this time, because a small amount of gas exists in the packaging bag 90 and expands under the action of the pressure difference, the pressure difference pulls the packaging bag 90 towards two sides in the process, and when the gas in the packaging bag 90 is insufficient to support the packaging bag 90 to expand, the external gas can be inhaled, and the packaging bag 90 is further expanded initially; so that the packing bag 90 is attached to the inner wall of the bag placing bin 10; at the same time, the third adsorption units 80 move away from each other to drive the packing bag 90 to be opened.

Driving the first adsorption unit 30 to start, and adsorbing and attaching the packaging bag 90 near the upper opening; the second adsorption unit 40 is driven to start, and the packing bag 90 held by the first sealing block 21 and the second sealing block 22 is adsorbed. The first sealing block 21 and the second sealing block 22 are separated from each other and drive the mouth of the packing bag 90 to be opened, and the first adsorption unit 30 and the second adsorption unit 40 are kept to continuously adsorb the packing bag 90, so that the packing bag 90 is kept in an opened state. The material is packed from the mouth of the packing bag 90, and the packing bag 90 is deformed because the packing bag 90 is continuously adsorbed by the first adsorption unit 30 and the second adsorption unit 40 and the packing bag 90 is not collapsed in the material packing process.

Finally, the first power source 50 drives the bottom plate 131 to move downwards, and drives the lifting plate 132 and the packaging bag 90 on the lifting plate 132 to move downwards synchronously, so that the bag opening and material filling operation is completed.

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 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 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 embodiments, and are intended to be included within the scope of the 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 (10)

1. A bag opening apparatus, comprising:

the bag placing bin is provided with a bag placing cavity for accommodating the packaging bag and an upper opening communicated with the bag placing cavity;

the sealing unit is positioned above the bag placing bin and comprises a first sealing block and a second sealing block, the first sealing block and the second sealing block are arranged in a reciprocating mode relatively in the horizontal direction so as to be folded or opened relatively, when the first sealing block and the second sealing block are folded, the packaging bag is clamped between the first sealing block and the second sealing block, and the sealing unit is in airtight fit with the upper opening of the bag placing bin so as to seal the bag placing cavity;

The first adsorption unit is arranged on the inner wall of the bag placing cavity and is used for adsorbing the packaging bag;

and/or a second adsorption unit disposed on opposite sidewalls of the first and second sealing blocks.

2. The bag opening apparatus of claim 1, wherein the first adsorption unit comprises a plurality of first adsorption elements, and a plurality of first adsorption element arrays are disposed on the inner wall of the bag storage bin.

3. The bag opening apparatus of claim 2 wherein a plurality of said first adsorbent members are disposed on said bag house interior wall adjacent said upper opening.

4. The bag-opening apparatus of claim 1, wherein the bag-placing bin comprises:

the bag receiving seat is used for supporting the bottom of the packaging bag;

the upper part of the vacuum frame is provided with the upper opening, the lower part of the vacuum frame is also provided with the lower opening, the vacuum frame and the bag receiving seat are arranged in a reciprocating mode relatively in the height direction, when the vacuum frame and the bag receiving seat are folded in the height direction, the lower opening is in airtight fit with the bag receiving seat, and the vacuum frame and the bag receiving seat are enclosed to form the bag placing cavity.

5. The bag-opening apparatus of claim 4, wherein said bag-holding bin further comprises: the first power source is in transmission connection with the bag receiving seat and used for driving the bag receiving seat to reciprocate along the height direction.

6. The bag-opening apparatus of claim 4, wherein the bag-receiving nest comprises: a bottom plate and a lifting plate; the bottom plate and the lifting plate are arranged in a reciprocating manner in the height direction; the bottom plate with the lower opening of vacuum frame can airtight cooperation, the lifter plate is located the bottom plate top and can stretch into in the vacuum frame, just the lifter plate is used for driving the wrapping bag and removes along the direction of height.

7. The bag-opening apparatus of claim 6, wherein the bag-receiving nest further comprises: the second power source is arranged below the bottom plate, the output end of the second power source penetrates through the bottom plate, the lifting plate is connected with the output end of the second power source, and the second power source is used for driving the lifting plate to reciprocate along the height direction.

8. The bag-opening apparatus of claim 1, further comprising:

The two groups of the third adsorption units are respectively arranged on two opposite side walls of the bag placing bin, and the two groups of the third adsorption units are oppositely arranged;

the two groups of the third adsorption units are arranged in a reciprocating mode in the horizontal direction, and when the two groups of the third adsorption units are folded in the horizontal direction, the packaging bag is located between the two groups of the third adsorption units.

9. The bag-opening apparatus of claim 8, further comprising:

the two third power sources penetrate through two opposite side walls of the bag placing bin;

the two groups of third adsorption units are respectively arranged at the output ends of the two third power sources, and the third power sources are used for driving the two groups of third adsorption units to move close to or away from each other.

10. The bag-opening apparatus of claim 1, further comprising: the air extraction opening is positioned on the bag placing bin and is used for being connected with an air path of the vacuumizing mechanism.