CN117002078A

CN117002078A - Processing equipment, processing method and packaging structure

Info

Publication number: CN117002078A
Application number: CN202210460840.0A
Authority: CN
Inventors: 黄泓润
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2023-11-07

Abstract

The application discloses a processing device, a processing method and a packaging structure, wherein the processing device comprises: the pretreatment module is used for pretreating the packaging material; the three-dimensional forming module is used for forming the foldable packaging body into a three-dimensional packaging body; the angle making module is used for forming an inner folded angle on the three-dimensional packaging body, and the post-processing module is used for post-processing the three-dimensional packaging body after angle making so as to form a packaging structure; the corner making module comprises: the support module is arranged below the three-dimensional forming module, is used for receiving the three-dimensional packaging body on the three-dimensional forming module and is used for supporting the three-dimensional packaging body; the outer angulation module is arranged towards the supporting module and is used for being embedded into the three-dimensional packaging body; the extrusion sealing module is used for extruding the three-dimensional package body to enable the preformed inner folding angle structure to be a shaping inner folding angle structure and is used for sealing and fixing the shaping inner folding angle structure. The processing equipment can produce the packaging structure with the internal folding angle, and is convenient to process and high in production efficiency.

Description

Processing equipment, processing method and packaging structure

Technical Field

The application relates to the technical field of food packaging, in particular to processing equipment, a processing method and a packaging structure.

Background

At present, food packages are various in names, various types and characteristics of packages are different, but various packages can only contain content types matched with the characteristics of the packages, and the packages are not strong in compatibility, not convenient to use, high in transportation cost and not sanitary and environment-friendly.

The prior art is directed to various packages for holding beverages, such as: the paper plastic package for containing beverage is mostly only capable of containing liquid content, and the contained content is single in variety; the roof type package with two inner folded corners is inconvenient to open in multiple steps, cannot open a larger opening due to the influence of the two inner folded corners, cannot directly bear pressure in the transportation process due to the roof-shaped top surface, and cannot contain contents except liquid due to the limitation of a processing method; packaging of a tearable aluminum foil main sealing area, namely tearing after repeatedly folding the aluminum foil, and complicated steps; the traditional liquid food pop can is packaged, and the eight-treasure porridge can on the market has high transportation cost compared with the rectangular package cost due to the cylindrical shape, is provided with a cover for accommodating the soup ladle, cannot be sealed, cannot ensure the sanitation and safety of the soup ladle, cannot be connected to the package, is different from the package body in material, and has great influence on the environment; the glass can is packaged, has large volume and quite heavy weight, is easy to break and inconvenient to carry and go out; plastic flexible packages for condiments have poor ability to stand on a plane and are so soft in texture that they are inconvenient to pour.

In the prior art, aiming at the food package with internal folding angles, such as the processing technology of a roof-type package structure, the processing technology is too complicated and needs to be divided into a plurality of processes, and the whole process of processing and filling can be realized by two or three sets of equipment, so that the time and the labor are wasted, the operation is inconvenient, and the production efficiency is low; and because the prior art adopts the sequential effect of filling first and then corner making, the contents with larger internal friction resistance and poorer fluidity cannot be compatible with the package.

In summary, various packages are used as global main household garbage, and consumers have higher and higher consumption demands, so that those skilled in the art need to provide a package with strong compatibility, convenient use, sanitation, environmental protection and low transportation cost, and a processing device with high production efficiency, which overcomes the process conflict.

Disclosure of Invention

The application aims to provide processing equipment, a processing method and a packaging structure, which can produce the packaging structure with internal folding angles, and are convenient to process and high in production efficiency.

To achieve the above object, the present application provides a processing apparatus for processing a packaging structure, comprising:

the pretreatment module is used for pretreating the packaging material to enable the packaging material to be a foldable packaging body;

The three-dimensional forming module is used for forming the foldable packaging body into a three-dimensional packaging body;

the system angle module for make the internal angle of dog-ear on the three-dimensional package body, include:

the support module is arranged below the three-dimensional forming module, is used for receiving the three-dimensional packaging body on the three-dimensional forming module and is used for supporting the three-dimensional packaging body;

the outer angle module is arranged towards the supporting module and is used for being embedded into the three-dimensional packaging body to form a preformed inner angle structure on the three-dimensional packaging body;

the extrusion sealing module is used for extruding the three-dimensional package body to enable the preformed inner folded angle structure to be a shaping inner folded angle structure and is used for sealing and fixing the shaping inner folded angle structure;

and the post-processing module is used for post-processing the three-dimensional package body after the angle is formed so as to form a package structure.

In some embodiments, the three-dimensional forming module is connected to the supporting module, and the two packaging materials are one processing unit, the processing units are connected end to end, and the two packaging materials are arranged in a central symmetry manner about a connecting line of the two packaging materials, or the two packaging materials are arranged in a mirror symmetry manner about a connecting line of the two packaging materials.

In some embodiments, the support module comprises:

the fixed supporting unit is connected with the three-dimensional forming module and used for supporting at least one part of the three-dimensional packaging body;

The movable supporting unit is movably arranged on the three-dimensional forming module and is used for being matched with the external angle forming module so as to form a preformed internal angle folding structure on the three-dimensional packaging body;

the processing equipment also comprises a control module, wherein the control module is used for controlling the movable supporting unit to move relative to the three-dimensional forming module.

In some embodiments, the movable supporting unit is specifically a metal plate, the control module is specifically an electromagnet module, and the electromagnet module adsorbs the metal plate by utilizing magnetic attraction after being electrified so as to support and clamp the three-dimensional package body.

In some embodiments, the compression molding module comprises:

the side extrusion unit is arranged towards the support module and is used for extruding the preformed inner angle structure to form and shape the inner angle structure;

the first sealer is connected with the side extrusion unit and is used for sealing, fixing and shaping the inner folded angle structure.

In some embodiments, the preprocessing module comprises:

an indentation unit for forming an indentation on the packaging material;

a longitudinal sealer for sealing the longitudinal sealing region of the packaging material;

the notch and processing unit is arranged between the indentation unit and the three-dimensional forming module and is used for forming a position notch of a preformed inner folding angle structure on the packaging material; and/or

And the accessory adding unit is arranged between the indentation unit and the three-dimensional forming module and is used for adding accessories into the packaging material.

In some embodiments, the post-processing module comprises:

a filling tube for filling the contents into the three-dimensional package body after the corner making;

the main sealing cutter is arranged below the corner making module and used for sealing the main sealing area of the filled three-dimensional package body and cutting the three-dimensional package body.

In some embodiments, the stereolithography module is not contiguous with the support module, and the single wrapper is a single processing unit.

In some embodiments, the preprocessing module comprises:

an indentation unit for forming an indentation on the packaging material;

a cutting unit for cutting out the packaging material;

a folding unit for folding the packaging material;

a sealing unit for sealing the longitudinal sealing area of the packaging material;

the stacking unit is used for stacking the packaging materials which are cut and in a flat state;

the sucking disc unit is arranged between the stacking unit and the three-dimensional forming module and is used for sucking packaging materials from the stacking unit and transferring the packaging materials to the three-dimensional forming module.

In some embodiments, the support module and the outer angle module are independently arranged on the track and can move along the track;

The track is provided with a first track area and a second track area, and the running speed of the support module and the external angle forming module in the first track area is higher than that in the second track area;

when the first track area operates, the support module and the outer angle forming module operate at intervals;

when the second track area operates, the support module and the outer angle forming module operate after being combined, so that a preformed inner folded angle structure is formed on the three-dimensional packaging body after the support module and the outer angle forming module are combined.

In some embodiments, the compression molding module comprises:

the two extrusion strips are arranged in the second track area, and the distance between the two extrusion strips is gradually reduced along the direction away from the three-dimensional forming module;

the second sealer is arranged in the second track area and is used for sealing, fixing and shaping the inner folded angle structure and the main seal.

In some embodiments, the track is an annular track, and the support module and the outer angular module are both independently arranged on the annular track and are capable of moving along the annular track;

the support module is provided with an automatic mold withdrawing device, and when the support module runs below the annular track, the automatic mold withdrawing device stretches out of the support module by means of gravity so as to separate the angle making and the sealed three-dimensional package body from the support module;

Also comprises a baffle plate which is arranged towards the annular track, the baffle is used for enabling the angle making and the sealed three-dimensional package body to be separated from the support module at a preset position.

In some embodiments, the post-processing module comprises:

the Z-shaped track is arranged below the track;

the receiving trolley is arranged on the Z-shaped track, is used for running along the Z-shaped track and is used for driving the three-dimensional packaging body to enter the next station;

a filling unit for filling the three-dimensional package body with contents;

the side extrusion and continuous sealing unit is used for extruding the three-dimensional package body from two sides and sealing the residual transverse sealing area on the three-dimensional package body.

The application also provides a processing method for processing the packaging structure by using the processing equipment, which comprises the following steps:

the package body is preprocessed through the preprocessing module, so that the package body is a foldable package body;

forming the foldable packaging body into a three-dimensional packaging body through a three-dimensional forming module;

transferring the three-dimensional packaging body from the three-dimensional forming module to the supporting module, and supporting the three-dimensional packaging body through the supporting module;

forming a preformed inner angle structure on the three-dimensional package body through the outer angle module and the support module;

The three-dimensional package body is extruded by the extrusion sealing module so that the preformed inner folding angle structure is formed into a shaping inner folding angle structure, and the shaping inner folding angle structure is sealed and fixed by the extrusion sealing module;

and (5) post-processing the three-dimensional packaging body after the angle making by a post-processing module so as to form a packaging structure.

In some embodiments, when the stereolithography module is interfaced with the support module and the number of packaging materials is two, the step of forming a preformed internal bevel structure on the stereolithography package body by the external bevel module and the support module comprises:

the three-dimensional package body is supported by the fixed supporting unit;

the movable supporting unit is controlled by the control module to move relative to the three-dimensional forming module, and is matched with the external angle forming module so as to form a preformed internal angle folding structure on the three-dimensional packaging body.

In some embodiments, the step of extruding the three-dimensional package body through the extrusion sealing module to make the preformed internal corner structure be a shaped internal corner structure, and sealing and fixing the shaped internal corner structure through the extrusion sealing module comprises the following steps:

extruding the preformed inner angle structure through a side extrusion unit to form and shape the inner angle structure;

the fixed inner folded angle structure is sealed and fixed by the first sealing device.

In some embodiments, the step of pre-treating the packaging material by a pre-treatment module to render the packaging material into a foldable packaging body comprises:

embossing crease marks on the packaging material through an embossing unit;

sealing the longitudinal sealing area of the packaging material by a longitudinal sealer;

adding a fitting into the packaging material by a fitting adding unit; and/or

And carrying out incision treatment on the position forming the preformed internal folded angle structure on the packaging material through the incision and treatment unit.

In some embodiments, the step of post-processing the angled three-dimensional packaging body by a post-processing module to form a packaging structure comprises:

filling the contents into the angle-made three-dimensional package body through a filling pipe;

and sealing the main sealing area of the filled three-dimensional package body by a main sealing cutter, and cutting the three-dimensional package body.

In some embodiments, the step of filling the contents into the gusseted three-dimensional package body through a filling tube comprises:

injecting fluid with particles into the three-dimensional package body through the filling pipe;

and injecting fluid without particulate matters into the three-dimensional package body through the filling pipe.

In some embodiments, after the step of filling the contents into the gusseted three-dimensional package body by a filling tube, the method further comprises:

And partially sealing the main sealing area of the three-dimensional packaging body to construct a liquid food grille, and extruding the three-dimensional packaging body to enable air in the three-dimensional packaging body and fluid with preset flow to flow out of the three-dimensional packaging body through the liquid food grille.

In some embodiments, when the stereolithography module is not contiguous with the support module and the packaging material is a single packaging material, the step of forming a preformed internal bevel structure on the stereolithography body by the external bevel module and the support module comprises:

the support module and the outer angle forming module are arranged on the track, and the support module and the outer angle forming module move along the track;

when the first track area of the track runs, the support module and the outer angle forming module keep a space between the support module and the outer angle forming module to run;

when the second track area of the track operates, the support module and the outer angle forming module are matched to form a preformed inner angle folding structure on the three-dimensional package body.

extruding the preformed internal folded angle structure through two extrusion strips to form and shape the shaped internal folded angle structure;

And the second sealer is used for sealing and fixing the shaped inner folded angle structure.

forming an impression on the packaging material by an impression unit;

cutting out the packaging material by a cutting unit;

folding the packaging material by a folding unit;

sealing the longitudinal sealing area of the packaging material by a sealing unit;

stacking the packaging materials which are cut and in a flat state through a stacking unit;

and sucking the packaging material from the stacking unit through the sucker unit, and transferring the packaging material to the three-dimensional forming module.

receiving the three-dimensional package body through a receiving trolley arranged on the Z-shaped track, and driving the three-dimensional package body to enter the next station;

filling the three-dimensional package body with the contents through a filling unit;

the three-dimensional package body is extruded from two sides through the side extrusion and continuous sealing units, and the residual transverse sealing areas on the three-dimensional package body are sealed.

The application also provides a packaging structure processed by the processing method, which comprises a packaging body, wherein the packaging body is provided with an inner folding angle.

In some embodiments, the package body is formed by folding a planar material, and the package body is further provided with an external folding angle, and the external folding angle is positioned at the opposite side of the internal folding angle; and/or

The handle is arranged on the inner folding corner of the packaging body and is used for opening the packaging body.

In some embodiments, further comprising:

the pouring outlet is arranged on the external folding angle and is used for pouring out the beverage in the package body;

the sealing part is arranged on the outer folding angle and is used for covering and sealing the pouring outlet; and/or

The sealing part is connected with the outer side wall of the package body.

In some embodiments, the package body is provided with a main seal area, the main seal area and the inner fold line of the inner fold angle being disjoint.

In some embodiments, the inner fold line is a single fold line.

In some embodiments, the unsealed area of the fillet is provided with a first flexible seal, and the area of the first flexible seal is not less than half the area of the fillet; and/or

The inner folding line of the inner folding angle is parallel to the main sealing area, and the inner folding angle which is longitudinally arranged is converted into the inner folding angle which is transversely arranged by extruding the inner folding angle on the packaging body, so that a second corner inserting structure is formed, and the packaging body is converted into the packaging body with the rectangular cross section.

In some embodiments, the two inner folds are respectively arranged on opposite sides of the bottom of the package body, and the top of the package body is provided with an opening; and/or the package body is of a flat cup structure, and two first corner inserting structures are formed by extruding two inner folded corners on the flat cup structure so as to convert the flat cup structure into a cup with a rectangular cross section.

In some embodiments, the included angle of the two inner fold lines of the non-sealing area of the first corner insertion structure is more than 0 degrees and less than 90 degrees, the area of the bottom surface of the packaging body with the first corner insertion structure is larger than the cross-sectional area of the packaging body, and the bottom surface of the packaging body protrudes towards the inner cavity direction of the packaging body; and/or

The top opening part of the cup body is provided with a stable structure which is movably connected with the cup body, and the stable structure is folded into the cup body to support the cup body.

In some embodiments, the primary seal area is at an angle greater than 0 ° and less than 90 ° to the extension of the inner fold line; and/or the sealing area of the inner folded angle is provided with a second flexible sealing part.

In some embodiments, the inner fold line of the non-sealing region of the inner fold angle is two fold lines, and the included angle of the two fold lines is less than 90 degrees; and/or the sealing area of the inner folded angle is connected with the inner wall of the package body.

In some embodiments, the package body is provided with a main seal area, the main seal area intersecting with an inner fold line of the inner fold angle.

In some embodiments, the unsealed area of the fillet is provided with a third flexible seal; and/or the sealing area of the inner folding angle is provided with a fourth flexible sealing part which is folded in half.

In some embodiments, the package body is a multi-layer composite structure, the multi-layer composite structure can be divided into a hard layer and a film layer, and the hard layer at the position of the inner fold line is a fault structure.

In some embodiments, the inner fold line of the non-sealing region of the inner fold angle is two fold lines, and the included angle of the two fold lines is less than 90 ° or equal to 90 °.

In some embodiments, the package body is provided with an opening, and the opening is further provided with a sealing part for sealing the opening;

a cavity structure is arranged at the inner side of the package body corresponding to the opening; and/or the cavity structure is internally provided with a packaging accessory, the packaging accessory is isolated from the content in the packaging body, the sealing part comprises a sealing film and a tearing guiding strip, the sealing part is connected with a part of the packaging accessory, the sealing film is broken by pulling the tearing guiding strip from one end of the opening, and the packaging accessory is pulled out for use.

In some embodiments, the packaging structure is formed of two parts spliced up and down, including a first part having an internal fold angle and a second part having no fold angle; and/or

The second portion is circular in cross-section.

Compared with the background art, the processing equipment provided by the embodiment of the application is used for processing a packaging structure and comprises a pretreatment module, a three-dimensional forming module, an angle making module and a post-treatment module, wherein the pretreatment module is used for pretreating packaging materials so as to enable the packaging materials to be foldable packaging bodies; the three-dimensional forming module is used for forming the foldable packaging body into a three-dimensional packaging body; the angle making module is used for forming an inner folded angle on the three-dimensional package body; the post-processing module is used for post-processing the three-dimensional package body after the angle is made so as to form a package structure. Further, the corner forming module comprises a supporting module, an external angulation module and an extrusion sealing module, wherein the supporting module is arranged below the three-dimensional forming module and is used for receiving the three-dimensional packaging body on the three-dimensional forming module and supporting the three-dimensional packaging body; the outer corner forming module is arranged towards the supporting module and is used for being embedded into the three-dimensional packaging body to form a preformed inner folded corner structure on the three-dimensional packaging body; the extrusion sealing module is used for extruding the three-dimensional package body to enable the preformed inner folded angle structure to be a shaping inner folded angle structure, and is used for sealing and fixing the shaping inner folded angle structure. In addition, the embodiment of the application also provides a processing method for processing the packaging structure by using the processing equipment, and the processing method specifically comprises the following steps: preprocessing the packaging material through a preprocessing module to enable the packaging material to be a foldable packaging body; forming the foldable packaging body into a three-dimensional packaging body through a three-dimensional forming module; transferring the three-dimensional packaging body from the three-dimensional forming module to the supporting module, and supporting the three-dimensional packaging body through the supporting module; forming a preformed inner angle structure on the three-dimensional package body through the outer angle module and the support module; the three-dimensional package body is extruded by the extrusion sealing module so that the preformed inner folding angle structure is formed into a shaping inner folding angle structure, and the shaping inner folding angle structure is sealed and fixed by the extrusion sealing module; and (5) post-processing the three-dimensional packaging body after the angle making by a post-processing module so as to form a packaging structure.

Compared with the traditional processing equipment and method, the processing equipment and the processing method provided by the embodiment of the application can process the inner folding angle on the packaging structure in terms of packaging, and the packaging structure with the inner folding angle can be used for a user to open the packaging from the inner folding angle, so that the user is provided with a further option of cutting the packaging, and the sealing is opened from the inner folding angle, so that the main sealing of the packaging structure can be completely unsealed on the premise of no tool, the convenience and labor saving can be realized, and a reusable pouring outlet can be opened. Compared with the prior art package with aluminum foil as an upper sealing area, the package is used for containing the product which is in a semi-solid state after cooling, for example, a prefabricated vegetable product, and the complete upper sealing area is unsealed in one step through an inner folding angle in the opening mode of tearing off the whole main sealing area after repeated folding, so that no additional garbage is generated, the whole upper sealing opening can be opened in one step, the labor is saved, the convenience is realized, and the consumer's consumption demands are met; compared with the prior art, compared with the traditional eight-treasure porridge pop-top can packaging products, the square packaging is definitely larger than the cylindrical packaging containing volume under the same space condition in terms of transportation cost, and the opening of the packaging is an oblique opening in terms of packaging function, so that the cross section of the opening is larger, the pouring of contents is facilitated, and in terms of environmental protection, if the inner wall of the packaging is provided with a cavity for isolating and containing accessories such as soup ladle and the like, compared with the pop-top can packaging, garbage of a plastic cover for containing soup ladle can be reduced; when the package is used for containing solid particulate matters, such as cumin, spice and other condiment products, compared with the existing glass bottle package or soft package, the package can form an inclined small opening for pouring out by pulling out an inner folding angle in the scene of outdoor picnic and the like, can stand on a table like the glass bottle package and is light like the soft package, and a customer can plug the inner folding angle of the package back into the package under the condition of no use, so that a moisture-proof semi-closed package form is formed, and the package is convenient to reuse next time and has the characteristic of being reusable; when the package is used for containing liquid products, such as milk and other drinks, the inward turning angle can be pulled out to form a small opening, or the whole upper seal is opened through the inward turning angle, the two opening modes of the inward turning angle can provide more opening modes for customers, and some embodiments of the opening modes of the package, such as the opening on the inner side of the outward turning angle on the opposite side of the inward turning angle, can realize that the one-step opening of the inward turning angle drives the opening of the package to break, saves labor and is concise, the package with a single inward turning angle, the top of the package is provided with an oblique opening, so that the outward turning angle on the opposite side of the inward turning angle is larger, the arrangement of a side pouring opening is facilitated, the embodiment of the built-in straw at the position of the inward turning angle can ensure the integration of garbage, reduce the harm of the straw to the environment, and also has the function of re-accommodating the straw, thereby realizing the sanitation problem of multiple use.

In terms of processing technology, the processing equipment and the processing method are used for processing the packaging structure, so that the operation is convenient, the automation degree is high, for example, the integrated processing equipment and the processing method can be used for completing the integrated processing of the packaging structure through a whole set of equipment, and by adopting the processing equipment and the processing method, two connected packaging materials can be processed simultaneously, the working efficiency can be greatly improved, the degree of manual participation can be reduced, and the labor intensity and the production cost of workers can be reduced; or, for example, the split processing equipment and the processing method can process a single packaging material, form a fillable packaging body by firstly making an inner folded corner of the package and sealing a transverse opening at the top of the package, and fill a product through the bottom surface of the package, so that the processing method has the advantages that: firstly, for products with high internal friction resistance and low flowability such as solid particles, semi-liquid semi-particle liquid foods or semi-solidification state, if the prior art is adopted, after the products are filled, internal folded corners are manufactured and sealed at the top of the package, the internal folded corner package with high yield is difficult to process, the defect that the process conflict between the materials to be filled and the corner to be filled of the products with high friction resistance and low flowability can be overcome by changing the processing sequence through the processing method, and secondly, because the single internal folded corner package is an oblique upper opening mostly before being formed, the opening form which is unfavorable for filling is needed to be processed, and then the package is filled from the opening at the other end of the package.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a split type processing apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view of the processing apparatus of FIG. 1 processing a package structure having a transverse inward fold;

FIG. 3 is a schematic view of the processing apparatus of FIG. 1 processing a package structure having a longitudinal inward fold;

FIG. 4 is a schematic view of the processing apparatus of FIG. 1 processing a package having double-roof type inner fold angles;

FIG. 5 is a schematic view of an integrated processing apparatus according to an embodiment of the present application;

FIG. 6 is a schematic view of the processing apparatus of FIG. 5 without a notch and with a processing module process for processing a package structure with double-roof type internal folding corners;

FIG. 7 is a schematic view of the processing apparatus of FIG. 6 with a cut and process module process for processing a package structure with double-roof type inside corners;

FIG. 8 is a schematic view of the same side of the processing apparatus of FIG. 5 processing a package having a single roof-type inside corner;

FIG. 9 is a schematic view of the same side of the processing apparatus of FIG. 5 processing a package having a triangular top surface;

FIG. 10 is a schematic view of the processing apparatus of FIG. 5 processing a package having a single roof-type inside corner on an opposite side;

FIG. 11 is a schematic view of the processing apparatus of FIG. 5 on the opposite side of a package having a triangular top surface;

FIG. 12 is a schematic view of a part of the processing apparatus shown in FIG. 1;

FIG. 13 is a schematic view of a partial structure of the processing apparatus of FIG. 1 at another angle;

FIG. 14 is a schematic view of the assembly of the support module and the outer corner module of the processing apparatus of FIG. 1;

FIG. 15 is a schematic view of the assembly of the external angulation module and the extrusion strip of the processing apparatus of FIG. 1;

FIG. 16 is a schematic view of a partial structure of the processing apparatus shown in FIG. 8;

FIG. 17 is a schematic view of a single-roofed, inside corner package having an inside corner seal area with a fold line that does not overlap the main seal area in accordance with an embodiment of the present application;

FIG. 18 is a schematic view of a single longitudinal inside corner package having inside corner seal areas where the inside fold lines do not overlap the main seal areas in an embodiment of the present application;

FIG. 19 is a schematic view of a single corner inner fold package having an inner fold line in the inner fold seal area that does not overlap the main seal area in accordance with an embodiment of the present application;

FIG. 20 is an expanded view of the package of FIG. 17 with longitudinal internal folds;

FIG. 21 is a schematic view of a package structure transition with spatially convertible inner fold angles of a first flexible seal in an embodiment of the application;

FIG. 22 is an expanded view of the package of FIG. 21 having a spatially variable internal fold angle of the first flexible seal;

FIG. 23 is a schematic view of a longitudinal inside corner package having inside corner seal areas where the inside fold lines do not overlap the main seal area in accordance with an embodiment of the present application;

FIG. 24 is an expanded view of a unit of processing of the integrated ipsilateral processing of FIG. 18, with two longitudinal inward angled package bodies;

FIG. 25 is a schematic view of the single-roofed inner corner package of FIG. 17 with the tab inner fold line in the inner corner seal area non-overlapping with the main seal area;

FIG. 26 is an expanded view of a unit of processing of the integrated, heterolateral processing of FIG. 17, with two roof-type, inner corner packaging bodies;

FIG. 27 is a schematic view of a single-roofed, inside corner package with an inside corner seal area where the inside fold line overlaps the main seal area, according to an embodiment of the present application;

FIG. 28 is a schematic view of a single longitudinal inside corner package having an inside corner seal with an inside fold overlapping a main seal in accordance with an embodiment of the present application;

FIG. 29 is a schematic view of a single corner inside corner package with an inside corner seal overlapping a main seal in accordance with an embodiment of the present application;

FIG. 30 is a schematic view of the single-roofed, inside corner packaging configuration of FIG. 27;

FIG. 31 is an expanded view of the package of FIG. 27 with a single roof-type inward corner;

FIG. 32 is an expanded view of the single roof-type inside corner package of FIG. 27 in a split process;

FIG. 33 is an expanded view of a unit of processing of the integrated ipsilateral processing of FIG. 27, with two roof-type, inside corner packaging bodies;

FIG. 34 is a schematic view of the package structure of FIG. 28 with a longitudinal inward fold of the package folded upon itself;

FIG. 35 is an expanded view of the single longitudinally inward corner package of FIG. 28 in a split process;

FIG. 36 is a schematic view of the longitudinal inside corner package of FIG. 28 with an integral handle at the top of the package with the inside corner being formed on the same side;

FIG. 37 is an expanded view of a unit of processing of the integrated ipsilateral processing of FIG. 28, with two longitudinal inward angled package bodies;

FIG. 38 is a schematic view of a package structure with an opening in the non-sealing area of the inside corner according to an embodiment of the present application;

FIG. 39 is a schematic view showing the structure of the suction tube in the package structure at the inner folding angle position according to the embodiment of the present application;

FIG. 40 is a schematic view of a single inside corner package with a side pouring spout according to an embodiment of the present application;

FIG. 41 is a schematic view of a top triangular package with a longitudinally disposed integral handle and side pouring spout in accordance with an embodiment of the present application;

FIG. 42 is an expanded view of a top triangular package with a longitudinally disposed integral handle in this embodiment;

FIG. 43 is a schematic view of a package structure with a built-in receiving cavity according to an embodiment of the present application;

FIG. 44 is a schematic view of a liquid food grating constructed during filling in accordance with an embodiment of the present application;

FIG. 45 is a schematic view showing the structure of a folding cup with folding function according to the embodiment of the present application;

FIG. 46 is a schematic view of a folded cup in which the bottom surface of the package structure of FIG. 45 is tucked into the cup;

FIG. 47 is a schematic view of the cup structure in a flattened condition of the package structure of FIG. 45;

FIG. 48 is a schematic view of the lid pack of FIG. 45 in a folded, tucked-in configuration;

FIG. 49 is a schematic view of a flattened cup with lid in the package configuration of FIG. 45;

fig. 50 is a schematic view showing a unit structure of a folding cup having a folding function in the package structure shown in fig. 45 in a vertical processing process.

Wherein:

1-pretreatment module, 11-indentation unit, 12-longitudinal sealer, 13-incision and treatment unit, 14-stacking unit and 15-sucker unit;

2-a stereolithography module;

3-angle making module, 31-supporting module, 311-fixed supporting unit, 312-movable supporting unit, 32-external angle making module, 33-extrusion sealing module, 332-first sealing device, 333-extrusion strip, 334-second sealing device;

The device comprises a 4-post-processing module, a 41-filling pipe, a 42-main sealing cutter, a 43-Z-shaped track, a 44-receiving trolley, a 45-filling unit and a 46-side extrusion and continuous sealing unit;

5-a control module;

6-track, 61-first track area, 62-second track area;

7-an automatic mold stripper;

8-baffle plates;

100-packaging structure, 101-inner fold, 102-outer fold, 103-main seal area, 104-inner fold, 105-flat packaging body, 106-non-seal area, 107-first flexible seal, 108-seal area, 109-second flexible seal, 110-flat cup structure, 111-first plug angle structure, 112-upper lid, 114-second plug angle structure, 116-strip seal, 117-gusset, 118-tab, 119-first opening, 120-second opening, 121-seal, 122-straw, 123-film cavity structure, 124-handle, 125-third flexible seal, 126-fourth flexible seal, 127-longitudinal seal area, 128-cut, 129-cut line, 130-grille, 131-tear strip.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The present application will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present application.

The terms "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.

The processing equipment provided by the embodiment of the application is used for processing a packaging structure 100, and comprises a pretreatment module 1, a three-dimensional forming module 2, an angle making module 3 and a post-treatment module 4, wherein the pretreatment module 1 is used for pretreating packaging materials so as to enable the packaging materials to be foldable packaging bodies; the three-dimensional forming module 2 is used for forming the foldable packaging body into a three-dimensional packaging body; the corner making module 3 is used for forming an inner folded corner 101 on the three-dimensional package body; the post-processing module 4 is used for post-processing the three-dimensional package body after corner making to form the package structure 100.

It should be noted that the three-dimensional package body is specifically a tubular package body. The pretreatment module 1 may further include a step of manufacturing the packaging material, such as a multi-layer composite manufacturing step of the packaging material, a surface printing step of the packaging material, a through hole and a resealing step. The three-dimensional forming module 2 is a three-dimensional packaging body structure for forming a tube shape which is transparent up and down.

Further, the angle making module 3 comprises a supporting module 31, an outer angle forming module 32 and an extrusion sealing module 33, wherein the supporting module 31 is arranged below the three-dimensional forming module 2, and the supporting module 31 is used for receiving the three-dimensional package body on the three-dimensional forming module 2 and supporting the three-dimensional package body; the outer angulation module 32 is disposed towards the support module 31, the outer angulation module 32 being for embedding into the stereoscopic packaging body to form a preformed inner angulation structure on the stereoscopic packaging body; the extrusion sealing module 33 is used for extruding the three-dimensional package body to enable the preformed internal folded angle structure to be a shaping internal folded angle structure, and is used for sealing and fixing the shaping internal folded angle structure.

The preformed internal folding angle 101 means a state in which the internal folding angle 101 has been formed, but the internal folding angle 101 is not formed by the sealer. In fact, the support module 31 is a master mold for the product, while the outer corner module 32 is a slave mold, the nature of the corner making process being the process of closing the mold.

Compared with the conventional processing equipment and method, the processing equipment and method provided by the embodiment of the application have the advantages that the package structure 100 with the inner folding corner 101 can be opened by a user from the aspect of package, so that the user is provided with additional options except for cutting the package, and the seal is opened from the inner folding corner 101, the main seal of the package structure 100 can be completely unsealed without tools, the convenience and labor are saved, or a reusable pouring outlet can be opened. Compared with the prior art package with aluminum foil as an upper sealing area, the package is used for containing the product which is in a semi-solid state after cooling, for example, a prefabricated vegetable product, and the complete upper sealing area is unsealed in one step through the inner folding angle 101 in the opening mode of tearing off the whole main sealing area after repeated folding, so that no additional garbage is generated, the whole upper sealing opening can be opened in one step, the labor is saved, the convenience is realized, and the consumer's consumption demands are met; compared with the prior art, compared with the traditional eight-treasure porridge pop-top can packaging products, the square packaging is definitely larger than the cylindrical packaging containing volume under the same space condition in terms of transportation cost, and the opening of the packaging is an oblique opening in terms of packaging function, so that the cross section of the opening is larger, the pouring of contents is facilitated, and in terms of environmental protection, if the inner wall of the packaging is provided with a cavity for isolating and containing accessories such as soup ladle and the like, compared with the pop-top can packaging, garbage of a plastic cover for containing soup ladle can be reduced; when the package is used for containing solid particulate matters, such as cumin, spice and other condiment products, compared with the existing glass bottle package or soft package, when the package is used for picnic and other scenes, the package can form an inclined small opening for pouring out by pulling out the inner folded angle 101, so that the package can stand on a table like the glass bottle package and is light like the soft package, and a customer can plug the inner folded angle 101 of the package back into the package under the condition of no use, thereby forming a moisture-proof semi-closed package form, being convenient for reuse next time and having the characteristic of repeated use; when the package is used for containing liquid products, such as milk and the like, a small opening can be formed by pulling out an inward folding angle, or the whole upper seal is opened through the inward folding angle 101, the two opening modes of the inward folding angle 101 can provide more opening modes for customers, and some embodiments of the package opening modes, such as the opening on the inner side of an outward folding angle 102 on the opposite side of the inward folding angle 101, can realize that the one-step uncovering of the folding angle drives the package opening to break, saves labor and is concise, and the package with a single inward folding angle 101 is provided, the top of the package is provided with an oblique opening, so that the outward folding angle 102 on the opposite side of the inward folding angle 101 is larger, the arrangement of a side pouring opening is facilitated, the embodiment of the built-in straw 122 positioned at the position of the inward folding angle 101 can ensure the integration of garbage, reduce the harm of the straw 122 to the environment, and also have the function of re-accommodating the straw 122, and realize the sanitation problem of multiple use.

In terms of processing technology, the processing device and the processing method are used for processing the packaging structure 100, so that the operation is convenient, the degree of automation is high, for example, the integrated processing device and the processing method can be used for completing the integrated processing of the packaging structure 100 through a whole set of equipment, and by adopting the processing device and the processing method, two connected packaging materials can be processed simultaneously, the working efficiency can be greatly improved, the degree of manual participation can be reduced, and the labor intensity and the production cost of workers can be reduced; or, for example, the split processing apparatus and the processing method described above, process a single packaging material, form a pourable packaging body by first making the inner folded corner 101 of the package and sealing the transverse opening at the top of the package, and then fill the product through the bottom of the package, so that the processing method has the advantages that: firstly, for products with high internal friction resistance and low flowability such as solid particles, semi-liquid semi-particle liquid foods or semi-solidification state, if the prior art is adopted, after the products are filled, the internal folded corners 101 are manufactured and sealed at the top of the package, so that the internal folded corners 101 package with high yield is not easy to process, the defect that the process conflict between the materials to be filled and the corners to be filled of the products with high friction resistance and low flowability can be overcome by changing the processing sequence through the processing method, and secondly, because of the single internal folded corners 101 package, the packages before being formed are mostly in an oblique upper opening, which is unfavorable for the opening form of filling, one end opening with the internal folded corners 101 is required to be processed firstly, and then the other end opening of the package is required to be filled.

Two different processing apparatuses are described in detail below.

For the first processing equipment:

in some embodiments, the stereolithography module 2 is connected to the support module 31, and the number of packaging materials is two, the two packaging materials are connected, and the two packaging materials are arranged in a central symmetry manner about a connecting line of the two packaging materials, or the two packaging materials are arranged in a mirror symmetry manner about a connecting line of the two packaging materials. That is, the two packaging materials are one processing unit, which is connected end to end.

In this embodiment, the first processing device may process two connected packaging materials at the same time, so that the working efficiency may be improved to a certain extent. When two packaging materials are arranged in a central symmetry mode about a connecting line of the two packaging materials, namely, the position between the inner folded corners 101 of the two packaging materials is located at the opposite side, the utilization rate of the packaging materials is the highest, but the cost of the packaging machine is relatively high; when two packaging materials are arranged in mirror symmetry about the connecting line of the two packaging materials, namely, the situation that the positions of the inner folded corners 101 of the two packaging materials are at the same side is caused, the structure of the packaging machine is relatively simple, the cost of the machine is relatively low, but the cost of single packaging is increased, the utilization rate of the packaging materials is reduced, because a certain amount of packaging material waste material area is generated between the top main sealing areas of the two packaging materials, the packaging materials in the area can be cut off when the sealer is used for sealing, but if the packaging materials are slightly utilized, for example, the packaging handles 124 which are integrally arranged are processed in the area, the packaging materials can meet the use requirements of consumers.

In some embodiments, the support module 31 includes a fixed support unit 311 and a movable support unit 312, wherein the fixed support unit 311 is connected to the stereolithography module 2, and the fixed support unit 311 is used to support at least a portion of the stereolithography package body; the movable supporting unit 312 is movably disposed on the three-dimensional forming module 2, and the movable supporting unit 312 is used for being matched with the external corner forming module 32 to form a preformed internal corner structure on the three-dimensional package body.

Specifically, the lateral dimension of the three-dimensional forming module 2 is not smaller than the lateral dimension of the fixed supporting unit 311, wherein the top of the fixed supporting unit 311 is connected with the bottom of the three-dimensional forming module 2, the left end face of the fixed supporting unit 311 is level with the left end face of the three-dimensional forming module 2, and the two are distributed along the vertical direction; the top of the movable supporting unit 312 is rotatably provided at the bottom of the stereolithography module 2.

In addition, the processing equipment further comprises a control module 5, wherein the control module 5 is used for controlling the movable supporting unit 312 to move relative to the three-dimensional forming module 2.

In some embodiments, the movable supporting unit 312 is specifically a metal plate, and the control module 5 is specifically an electromagnet module, and the electromagnet module attracts the metal plate by magnetic attraction after being electrified, so as to support and clamp the three-dimensional package body.

It will be appreciated that after the packaging body is sleeved on the supporting module 31, the movable supporting unit 312 is controlled by the control module 5 to swing along the direction away from the fixed supporting unit 311 so as to tighten the three-dimensional packaging body, and then the outer corner forming module 32 moves towards the supporting module 31, and the outer corner forming module 32 is embedded into the three-dimensional packaging body so as to form a preformed internal folded corner structure on the three-dimensional packaging body. Of course, the control module is responsible for controlling the die closing action of the corner making unit, and also needs to be responsible for controlling the homing initial position of the corner making unit so as to release the manufactured package body to move to the next process.

Of course, according to actual needs, the forming of the preformed inner angle structure requires that the outer angle module 32 and the movable supporting unit 312 are tightly matched, and according to the preformed inner angle structure, a corresponding groove can be arranged on the movable supporting unit 312, when the outer angle module 32 is embedded into the groove, the preformed inner angle structure can be stamped on the package body, and then the angle can be formed again after being released, mainly for preventing the formed angle from colliding with the package machine; or released after making the angle.

In some embodiments, the compression molding module 33 includes a side compression unit and a first sealer 332, wherein the side compression unit is disposed toward the support module 31 for compressing the preformed internal corner structure to form the shaped internal corner structure; the first sealer 332 is connected with the side extrusion unit, and the first sealer 332 is used for sealing and fixing the shaped inner folded angle structure.

After the preformed inner folded angle structure is formed on the package body, the preformed inner folded angle structure is extruded by the side extrusion unit to form the shaped inner folded angle structure, and then the shaped inner folded angle structure is sealed and fixed by the first sealing device 332.

It should be noted that, the sealer should seal and fix the edge position of the main sealing area of the package with one side having an inner folding angle, that is, the incision position of the package processing unit after the inner folding angle is folded, so that the tubular end-to-end package processing units are sealed and are positioned in the fillable sealed cavity, and the influence of the previous incision is eliminated.

In some embodiments, the pre-treatment module 1 comprises an indentation unit 11, a longitudinal sealer 12, a cut-out and handling unit 13 and/or a fitment addition unit, wherein the indentation unit 11 is used to form an indentation in the packaging material; the longitudinal sealer 12 is used to seal the longitudinal seal area of the packaging material; the accessory adding unit is arranged between the indentation unit 11 and the three-dimensional forming module 2 and is used for adding accessories (such as a soup ladle and the like) into the packaging material; a cut-out and handling unit 13 is provided between the creasing unit 11 and the stereolithography module 2 for forming a position cut-out 128 of preformed internal corner structure on the packaging material. The incision and processing unit 13 further comprises a glue spraying module, and glue can be sprayed in the inner folded corner 101 area of the longitudinal inner folded corner 101 package, because the main seal bears the packaging pressure, the inner folded corner 101 area only needs to ensure the tightness, and preferably, food-grade hot melt glue is used. Of course, the sealer is not limited to a heat sealing machine or an ultrasonic sealing machine, and for the processing of the longitudinal inner folded corner 101 by spraying the glue, the sealing module of the inner folded corner 101 only needs to apply pressure to tightly connect the two triangular plates 117 of the inner layer.

It should be noted that only the single-roof type inside corner 101 package or the double-roof type inside corner 101 package of the prior art, which are processed on the same side, can be manufactured directly by the corner making module 3 without using a notch unit.

It should be noted that, when the vertical processing double-folded angle 101 is packaged, two packaging materials are still one processing unit, two methods can be adopted, one of which is as shown in fig. 6, the cutting and processing unit 13 is not used, the angle is directly made, two steps of working procedures are needed, the first step is to make the angle and then release the angle to the next working procedure, the second step is to fix the folded angle 101 again, and the angle making module 3 of the second step is required to be missing a group close to the lower, otherwise, the main sealing area 103 cannot be sealed; second, as shown in fig. 7, the notch 128 is cut first by using the notch and processing unit 13, then the inner folded corner 101 is folded in, and then the main sealing area 103 and the sealing area of the inner folded corner 101 are sealed at the outer side of the package, compared with the previous processing method, the method has one less corner making module 3, but an additional packaging waste area is generated, and preferably, the shape of the handle 124 is sealed and cut at the remaining material area.

In some embodiments, the post-processing module 4 comprises a filling tube 41 and a main seal cutter 42, wherein the filling tube 41 is used to fill the contents into the gusseted three-dimensional package body; the main sealing and cutting is arranged below the corner making module 3, and is used for sealing the main sealing area 103 of the three-dimensional package body after filling and cutting the three-dimensional package body, and meanwhile, the sealing area 108 of the package can be modified, for example, when two package inner folding corners 101 are positioned on the same side, the main sealing areas at the tops of the two packages have larger waste areas, and the package handles 124 can be cut in the areas for use. In addition, since one main sealing area is inclined in some embodiments, when two sealing areas and cutting lines in two directions are packaged, two groups of transverse sealing devices can be arranged for sealing and cutting respectively.

For the second processing equipment:

in some embodiments, the stereolithography module 2 is not contiguous with the support module 31, and the packaging material is a single packaging material. That is, the second processing apparatus is mainly directed to processing of a single packaging material, which is one processing unit. In other words, the second is a separate processing apparatus and process that is separate from each step, as opposed to the first vertical integrated processing and filling, which may be referred to as an integrated processing apparatus and process.

In some embodiments, the pretreatment module 1 comprises an indentation unit, a cutting unit, a folding unit, a sealing unit, a stacking unit 14 and a sucking disc unit 15, wherein the indentation unit and the cutting unit are used for forming an indentation on the packaging material and cutting the packaging material; the folding unit and the sealing unit are used for folding the packaging material, and the folding unit and the sealing unit are used for sealing a longitudinal sealing area of the packaging material; the stacking unit 14 is used for stacking the packaging materials which are cut and in a flat state; the sucking disc unit 15 is arranged between the stacking unit 14 and the three-dimensional forming module 2, and the sucking disc unit 15 is used for sucking the packaging material from the stacking unit 14 and transferring the packaging material to the three-dimensional forming module 2.

The indentation unit and the cutting unit respectively execute the indentation processing function and the packaging unit material cutting function; also, the folding unit and the sealing unit perform a function of folding the packaging material and a function of sealing the longitudinal sealing region of the packaging body, respectively. The four functional units may be arranged in a sequence of process flows according to actual conditions, and the terms mentioned herein do not necessarily require or imply any such actual relationship or order between the functional units.

In the pretreatment process, firstly, an indentation is formed on the packaging material through the indentation unit and the cutting unit, the packaging material is cut, then, a longitudinal sealing area of the packaging material is sealed through the folding unit and the sealing unit, then, the packaging material which is cut and is in a flat state is stacked on the stacking unit 14, finally, the packaging material is sucked from the stacking unit 14 through the sucking disc unit 15, and the packaging material is transferred to the three-dimensional forming module 2, and further, the three-dimensional forming module 2 forms the packaging material in the flat state into a three-dimensional packaging body.

It should be noted that, the vertical processing method may be used to impress and then add the fittings, then cut the package to form a folded flat package body, and stack the package body on the stacking unit; or in the second processing sequence, each package is firstly creased and then cut, and then the longitudinal sealing line is sealed and then folded; of course, other processing sequences and combinations are possible.

In some embodiments, the processing apparatus further comprises a rail 6, both the support module 31 and the outer angular module 32 being arranged independently on the rail 6 and being movable along the rail 6.

Specifically, the track 6 is provided with a first track section 61 and a second track section 62, both the support module 31 and the outer corner module 32 running at a higher speed in the first track section 61 than in the second track section 62. It should be noted that, when the first track area 61 is running, the support module 31 and the outer angle forming module 32 keep a distance between them to run; when the second track area 62 runs, the support module 31 and the outer corner forming module 32 run after being combined, so that a preformed inner corner folding structure is formed on the three-dimensional package body after the support module 31 and the outer corner forming module 32 are combined.

It should be noted that the first track area 61 is located on the front side and the second track area 62 is located on the rear side, so that the support module 31 and the outer corner forming module 32 are moved at a distance from each other, and when moved to the second track area 62, the support module 31 and the outer corner forming module 32 are moved together, so that the preformed inner corner structure is formed on the three-dimensional package body after the support module 31 and the outer corner forming module 32 are clamped, the support module 31 can be understood as a master mold, the outer corner forming module 32 can be understood as a slave mold, and the preformed inner corner structure is formed on the three-dimensional package body by clamping movement of the slave mold relative to the master mold. Of course, the speeds of the first track area and the second track area should not differ too much, otherwise the second track area may pile up too much. Further, the second track area is an indirect power running area with a certain length, when the first track sends a group of angle making modules into the inlet end of the second track, the angle making modules collide with the former group, push the former group forward, so that a group closest to the outlet end of the second track area is pushed out from the outlet end, enters the active power running area and runs to the next procedure.

In some embodiments, the extrusion sealing module 33 includes a second sealer 334 and two extrusion bars 333, wherein the two extrusion bars 333 are disposed in the second track area 62, and the interval between the two extrusion bars 333 is tapered in a direction away from the stereolithography module 2; the second sealer 334 is disposed in the second track area 62, and the second sealer 334 is used for sealing and fixing the shaped inner corner structure and the main seal. The squeeze bar 333 serves as a guide to move the package in the direction of the sealer, and the opening of the main seal and the inside corner 101 is smaller.

In some embodiments, the track 6 is an annular track 6, the support module 31 and the outer angle forming module 32 are independently arranged on the annular track 6 and can move along the annular track 6, and the support module 31 and the outer angle forming module 32 can be separately provided with a driving module for driving, and the driving module can be a power motor assembly or the like.

In addition, in order to facilitate the die withdrawal, the supporting module 31 is provided with an automatic die withdrawal device 7, and when the supporting module 31 runs below the annular track 6, the automatic die withdrawal device 7 stretches out of the supporting module 31 by means of gravity so as to separate the angle making and the sealed three-dimensional package body from the supporting module 31; when the support module 31 runs over the circular rail 6, the automatic ejector 7 automatically returns by gravity.

Still further, the processing apparatus further includes a baffle plate 8, the baffle plate 8 is disposed towards the annular track 6, and the baffle plate 8 is used for separating the stereo package body after corner making and sealing from the supporting module 31 at a preset position, or ensuring that the automatic mold-withdrawing device 7 is reset before entering the processing position of the next round. The baffle 8 is provided at the curve position of the circular track 6. The baffle is used for ensuring that the mold ejector is ejected at a proper position and returns to an initial position at a proper position.

In some embodiments, the post-processing module 4 comprises a zig-zag rail 43, a receiving trolley 44, a filling unit 45 and a side extrusion and continuous sealing unit 46, wherein the zig-zag rail 43 is provided below the rail 6; the receiving trolley 44 is arranged on the Z-shaped track 43, and the receiving trolley 44 is used for running along the Z-shaped track 43 and driving the three-dimensional package body to enter the next station; the filling unit 45 is used for filling the three-dimensional package body with the contents; the side pressing and continuous sealing unit 46 is used for pressing the three-dimensional package body from both sides, and the side pressing and continuous sealing unit 46 is used for sealing the remaining transverse sealing area on the three-dimensional package body.

On the basis of the above, the embodiment of the present application further provides a processing method for processing the packaging structure 100 by using the processing apparatus, where the processing method specifically includes:

S1: preprocessing the packaging material through a preprocessing module 1 to enable the packaging material to be a foldable packaging body;

s2: forming the foldable package body into a three-dimensional package body through a three-dimensional forming module 2;

s3: transferring the three-dimensional packaging body from the three-dimensional forming module 2 to the supporting module 31, and supporting the three-dimensional packaging body through the supporting module 31;

s4: forming a preformed inner corner structure on the three-dimensional packaging body through the outer corner module 32 and the support module 31;

s5: the three-dimensional package body is extruded by the extrusion sealing module 33 so that the preformed internal folding angle structure is formed into a shaping internal folding angle structure, and the shaping internal folding angle structure is sealed and fixed by the extrusion sealing module 33;

s6: the three-dimensional package body after the corner making is post-processed by a post-processing module 4 to form the package structure 100.

In some embodiments, when the stereolithography module 2 is interfaced with the support module 31 and the number of packaging bodies is two, the step of forming a preformed internal folded angle structure on the stereolithography packaging body by means of the external angled module 32 and the support module 31 comprises: the stereoscopic package body is supported by the fixed supporting unit 311; the movable supporting unit 312 is controlled to move relative to the three-dimensional forming module 2 by the control module 5, and the movable supporting unit 312 is matched with the outer corner forming module 32 to form a preformed inner corner structure on the three-dimensional package body.

Specifically, after the support module 31 receives the stereoscopic packaging body on the stereoscopic forming module 2, the packaging body continues to descend onto the fixed support unit 311 and supports the stereoscopic packaging body through the fixed support unit 311, then the control module 5 controls the movable support unit 312 to swing along a direction away from the fixed support unit 311 so as to tighten the stereoscopic packaging body, and finally the outer angle forming module 32 moves towards the support module 31, and the outer angle forming module 32 is embedded into the stereoscopic packaging body so as to form a preformed inward angle folding structure on the stereoscopic packaging body.

In some embodiments, the step of extruding the three-dimensional package body by the extrusion sealing module 33 to make the preformed internal corner structure a shaped internal corner structure, and sealing and fixing the shaped internal corner structure by the extrusion sealing module 33 includes: extruding the preformed inner angle structure through a side extrusion unit to form and shape the inner angle structure; the fixed-form inside corner structure is sealed by the first sealer 332.

It should be noted that, the control module of the angle making module must have a reset function when the same side or different sides process the inner folded angle, and after the angle is made, the angle making module returns to the initial position, and the package is released, so that the inner folded angle can move downwards to the next processing unit without being affected; the different side machining must be divided into two stations to respectively machine two inward folding angles in different directions, otherwise mutual interference can be generated.

In some embodiments, the step of pre-treating the packaging material by the pre-treatment module 1 to render the packaging material into a foldable packaging body comprises:

embossing crease lines on the packaging material by the embossing unit 11;

sealing the longitudinal sealing area of the packaging material by a longitudinal sealer 12;

adding a fitting into the packaging material by a fitting adding unit; and/or

The locations on the packaging material where the preformed internal corner structures are formed are subjected to a slitting process by a slitting and processing unit 13.

In some embodiments, the step of post-processing the angular three-dimensional packaging body by post-processing module 4 to form packaging structure 100 comprises: filling the contents into the three-dimensional package body after corner making through a filling tube 41; the main sealing area 103 of the three-dimensional package body after filling is sealed by the main sealing cutter 42, and the three-dimensional package body is cut.

In some embodiments, the step of filling the contents into the gusseted three-dimensional package body through the filling tube 41 includes: injecting fluid with particles into the three-dimensional package body through the filling tube 41; the fluid without particulate matter is injected into the three-dimensional package body through the filling tube 41.

It should be noted that, since the contents are liquid foods, the particulate matter is easy to exist near the seal of the package area, which is inconvenient to the sealing process, and causes incomplete local sealing and unsatisfactory breaking rate. A filling sequence is required to circumvent this: in this embodiment, it is proposed that the fluid with the particulate matters is filled into the bottom of the package body, and then the fluid without the particulate matters is filled, so that the situation of upper and lower layering occurs, the probability of the particulate matters existing in the main sealing area 103 is guaranteed to be reduced, and the product is subjected to mechanical shaking and other treatments after the filling is finished.

Specifically, when the first package body and the second package body are subjected to constant volume filling, the method specifically comprises the following steps: the first package body is subjected to constant volume filling through a filling tube 41; sealing the main sealing area 103 of the first package body by a main sealing cutter 42 and cutting the first package body; the second package body is subjected to constant volume filling through a filling tube 41; sealing the main sealing region 103 of the second package body by a main sealing cutter 42; the outside corner 102 is formed on the first package body and the second package body by the outside corner 102 processor to form the first package structure 100 and the second package structure 100, respectively.

In some embodiments, after the step of filling the contents into the gusseted three-dimensional package body through the filling tube 41, the method further comprises: the main sealing area 103 of the three-dimensional package body is partially sealed to construct the liquid food grille 130, and air and a preset flow rate of fluid in the three-dimensional package body are caused to flow out of the three-dimensional package body through the liquid food grille 130 by pressing the three-dimensional package body.

It should be noted that, since the contents are liquid foods, the particulate matter is easy to exist near the seal of the package area, which is inconvenient to the sealing process, and causes incomplete local sealing and unsatisfactory breaking rate. A filling method is needed to circumvent this: the present embodiment proposes a processing method for constructing the liquid food grille 130, firstly, constant volume canning is performed, then the main sealing area 103 of the three-dimensional package body is partially sealed to construct the liquid food grille 130, preferably, the liquid food grille 130 is lattice-shaped, and then the three-dimensional package body is extruded by a machine, so that air in the three-dimensional package body and a fluid with a preset flow rate flow out of the three-dimensional package body through the liquid food grille 130.

In some embodiments, when the stereolithography module 2 is not contiguous with the support module 31 and the packaging material is a single packaging material, the step of forming a preformed internal corner structure on the stereolithography body by the external corner module 32 and the support module 31 comprises: disposing the support module 31 and the outer angular module 32 on the rail 6 and moving both the support module 31 and the outer angular module 32 along the rail 6; while the first track section 61 of the track 6 is running, the support module 31 and the outer corner module 32 are running with a spacing maintained therebetween; during operation of the second track section 62 of the track 6, both the support module 31 and the outer corner module 32 are clamped to form a preformed inner corner structure on the three-dimensional package body.

Specifically, the track 6 may be an elliptical track 6, where the support module 31 and the outer corner forming module 32 move along the track 6, and when the first track area 61 of the track 6 moves, the support module 31 and the outer corner forming module 32 keep a certain distance between them, and during this process, the support module 31 receives the three-dimensional package body from the three-dimensional forming module 2; during operation of the second track section 62 of the track 6, both the support module 31 and the outer corner module 32 are clamped to form a preformed inner corner structure on the three-dimensional package body.

In some embodiments, the step of extruding the three-dimensional package body by the extrusion sealing module 33 to make the preformed internal corner structure a shaped internal corner structure, and sealing and fixing the shaped internal corner structure by the extrusion sealing module 33 includes: extruding the preformed internal folded angle structure through two extrusion strips 333 to form a shaped internal folded angle structure; the fixed-form inner corner structure is sealed and fixed by a second sealer 334.

forming an impression on the packaging material by an impression unit;

cutting out the packaging material by a cutting unit;

folding the packaging material by a folding unit;

stacking the cut packaging material in a flat state by a stacking unit 14;

the packing material is sucked from the stacking unit 14 by the suction cup unit 15 and transferred to the stereolithography module 2.

In some embodiments, the step of post-processing the angular three-dimensional packaging body by post-processing module 4 to form packaging structure 100 comprises:

Receiving the three-dimensional package body through a receiving trolley 44 arranged on the Z-shaped track 43, and driving the three-dimensional package body to enter the next station;

filling the contents into the three-dimensional package body through the filling unit 45;

the stereoscopic packaging body is extruded from both sides by the side extrusion and continuous sealing unit 46, and the remaining transverse sealing areas on the stereoscopic packaging body are sealed.

The package 100 obtained by the above-described processing method is described below in connection with specific embodiments.

The package structure 100 provided in the embodiment of the present application includes a package body, which may be used for containing liquid, semi-liquid semi-granular food, semi-solid or solid particles, such as beverage, food, prepared dish, seasoning, kitchen seasoning, etc., and the package body is provided with an inner folded corner 101.

It should be noted that, the inner folding corners 101 are divided into two types, one is that the inner folding corners 101 are longitudinally arranged on the package body, for example, the single inner folding line 104 is used for packaging the longitudinal inner folding corners 101; and the second is a plug-in angle and a roof-type internal folding angle 101 which are transversely arranged on the package body, for example, two internal folding lines 104 are mentioned in the scheme, wherein the plug-in angle and the corresponding longitudinal internal folding angle 101 which meet specific conditions can mutually and spatially change. Of course, the package structure 100 may be a flexible package, and the package body mentioned in this application is not limited to the softness, size, material, etc. and may be called a package bag or a package body.

In some embodiments, the package body is a package body structure container formed by folding a planar material, and the package body is further provided with an external folding angle 102 (i.e. an external folding angle), wherein the external folding angle 102 is located at the opposite side of the internal folding angle 101; and/or the inner folded corner 101 of the package body is provided with a handle for opening the package. Specifically, the two sides of the top of the package body are respectively provided with an inner folding angle 101 and an outer folding angle 102, and the bottom of the package body is provided with two outer folding angles 102. The handle may be used to break the seal 121 on the non-sealing region 106 of the inside corner 101 to open the package opening, or may be used to break the sealing region of the inside corner 101 and pull the inside corner 101 out to form an open structure.

It should be noted that, the beneficial effects brought by setting an internal folding angle 101 include:

first, compared with the roof-type double-inner-folded-angle package body in the prior art, the two inner folded angles 101 form a barrier when the roof-type double-inner-folded-angle package body is opened, and cannot be opened in one step, but the package body in the embodiment is only provided with one inner folded angle 101, so that the package can be conveniently opened, namely, the package is opened along one side of the inner folded angle 101, and the whole main seal can be unsealed and opened from the seal of the inner folded angle 101, so that the package can be conveniently opened.

Secondly, the top surface of the package unfolding view of the single inner folding corner 101 is oblique, namely the opposite outer folding corner 102 is completely opened to form an oblique pouring opening, so that the package unfolding view is very convenient to pour out, for example, fluid foods such as eight-ingredient porridge can be filled, even a soup ladle is not needed, and the package unfolding view can be eaten after being turned up. The prior art packages, except for cans and flexible packages, do not have such large opening packages that are ergonomically oriented. If the eight-treasure porridge is packed, the eight-treasure porridge is packed by a single roof and compared with the existing pop-top can, the eight-treasure porridge is convenient to drink, and the transportation cost is lower than that of a cylinder.

Thirdly, for the package body of double roof formula internal folding angle, because the package body adopts single internal folding angle 101, the top surface of package body is triangle-shaped or rectangle, can pile up the transportation on the transportation to efficiency and the convenience of transportation can be improved greatly.

In some embodiments, the external corner 102 further comprises a pouring outlet and a sealing part 121, wherein the pouring outlet is arranged on the external corner and is used for pouring out the beverage in the package main body; a sealing part 121 is provided on the outside corner, and the sealing part 121 is used to cover and seal the pouring outlet.

The sealing portion 121 may be connected to the outer side wall of the package body.

It should be noted that, the customer may open the package by lifting the external corner 102 to break the sealing portion 121 connected to the outer side wall of the package.

Specifically, the package structure 100 may be a package structure 100 with a triangular or rectangular top surface after molding, and the package structure 100 has four folded corners, wherein one folded corner is folded inwards to form an inner folded corner 101, and obviously, the sealing area 108 of the inner folded corner 101 forms an obvious included angle with the main sealing area 103, and the optional included angle range according to the processing requirement may be less than 90 ° and far greater than 0 °; of course, the sealing area 108 of the inner folded corner 101 and the main sealing area 103 have no obvious included angle, and the positions of the sealing areas overlap. Wherein the upper left or right corner of the package structure 100 is provided with an inner folding corner 101 and the remaining three corners are provided with outer folding corners 102, the structure of the outer folding corners 102 can be referred to in the prior art, and will not be unfolded one by one.

For example, for the package structure 100 with the inner folding corner 101 at the upper left corner and the outer folding corner 102 at the upper right corner, when the package structure is opened, the package structure can be opened from the outer folding corner 102, or can be opened from the inner folding corner 101, when the package structure is opened from the inner folding corner 101, the package structure can be opened by only slightly tearing the seal of the inner folding corner 101, and of course, the main seal can be further torn along the seal of the inner folding corner 101, so that the upper part of the package structure 100 is completely opened, and the beverage in the package structure can be conveniently poured.

It should be noted that, when the preset opening of the package is located in the inner area of the outer fold 102 of the package, the preset opening is covered by a film layer that is integrally formed with the packaging material, and the film layer is directly or indirectly connected to the side wall of the package, compared with the beverage package in the prior art, the package structure provided by the embodiment of the application can enable a customer to break the film layer by turning the fold, so as to realize the function of one-step unpacking of the package.

As a specific embodiment, the packaging structure 100 is specifically a packaging structure 100 with a triangular top surface with a longitudinal inward folding angle 101, the bottom surface of the packaging structure 100 is rectangular, the bottom surface of the packaging structure 100 is located in a horizontal plane, the triangular top surface may be parallel to the bottom surface of the packaging structure 100, i.e. the triangular top surface is located in the horizontal plane, and the triangular top surface is a flat triangular top surface; of course, the triangular top surface may be non-parallel to the bottom surface of the package structure 100, i.e. the triangular top surface has a predetermined inclination angle with respect to the horizontal plane, and the triangular top surface is an oblique triangular top surface. The internal folded corner 101 is disposed on a first side of the package structure 100, and the vertex of the triangular top surface is disposed on the first side, and at the same time, the internal folded corner 101 and the triangular top surface share a vertex. The base of the triangular top surface is located on the second side of the packaging structure 100 and the second side of the packaging structure 100 is provided with an external corner 102 connected to the base. In the present embodiment, the internal folded corner 101 includes two overlapped triangular pieces 117, and the size of the triangular pieces 117 is tapered in a direction away from the top surface of the triangle, in other words, the bottom side of the triangular pieces 117 is upward and the apex is downward. The triangular piece 117 may be a right triangle piece or an obtuse triangle. For this embodiment, the bottom surface of the package is uneven due to the longitudinal inward folding angle 101, and is slightly convex, preferably, a convex portion is disposed at the lower end of the inward folding angle 101 to correct the bottom surface.

It should be noted that, in the integrated processing technology of the package with the triangular inner folded corner 101, two package bodies are one processing unit, and the processing of the same side of the inner folded corner 101 and the processing of different sides of the inner folded corner 101 are separated, and the processed products have similar appearance, but inconsistent structure: the inner folding corner 101 area can be sealed by adopting glue spraying through the packaging processed on the opposite side, the main seal bears the sealing pressure of the inner folding corner 101, the inner folding corner 101 area only needs to ensure tightness, and the single folding line of the longitudinal inner folding corner 101 cannot overlap with the main seal; however, by the package processed on the same side, the inner folding corner 101 is folded into the package and then sealed together, the folding line of the inner folding corner 101 can be covered by the main sealing area, and then when the other three outer folding corners are folded, the structure of the inner folding corner 101 can generate certain obstruction to the folding process, the inner folding corner 101 can fold on itself to adapt to the folded package form, and optimally, the part of the inner folding corner 101 area is a thin film or a weakened soft layer, so that the inner folding corner 101 is convenient to fold on itself. In order to facilitate the opening of the package by the user from the side of the inside corner 101, a handle is also included at the top of the inside corner 101. The handle may be in the form of a tab 118, with two tabs 118 being provided on the side walls of the inner corner 101, and by pulling the handle, the closure of the inner corner 101 may be opened, thereby opening the package. In addition, the second side (the side away from the inner folded corner 101) of the packaging structure 100 is provided with an outer folded corner 102 connected to the bottom side of the triangular top surface, and the inner side wall of the outer folded corner 102 is provided with an opening. When the package is opened from that side, the outside corner 102 can be lifted to expose the opening.

In some embodiments, the top surface of the package body is triangular, the package body is further provided with a turning angle, the turning angle is located at the bottom edge of the triangle of the top surface, the vertex of the triangle of the top surface is further provided with a handle 124 integrally arranged with the package body, and the handle 124 is longitudinally arranged on the side wall of the package body.

The turndown angle at the bottom side of the top triangle may be an inner turndown angle or an outer turndown angle 102. The structure of the integral handle is that the longitudinal inner folding angle 101 is reversely folded outwards, and the integral handle is sealed into a whole, and then the through hole is processed into the shape of a handle 124.

That is, according to the development of the longitudinal fold angle in the present embodiment, it can be deduced that when the fold angle is folded outwards, it is a longitudinal fold angle, and the so-called integral handle 124 structure is the shape of the handle 124 after the two triangular pieces 117 of the longitudinal fold angle are sealed into a composite structure and cut through the through hole. When the integrated processing machine is used to process the package with the longitudinal integrated handle 124, two package bodies are used as a processing unit, the processing units are connected end to end, the two package bodies are connected with each other, the two package bodies are arranged in a central symmetry manner about a connecting line of the two package bodies (namely, the two package bodies are complemented with each other between oblique line openings), after the package bodies are overflowed and filled, the package bodies are sealed together with the longitudinal outward turning angle area while the oblique main seal between the two package bodies is sealed (or the oblique main seal line between the two package bodies is sealed after the longitudinal outward turning angle area is sealed first), then the first package body and the handle 124 are cut (of course, the cutting operation can be performed while the oblique main seal area is cut, the shape of the handle 124 is cut while the oblique main seal area is cut), and then the remaining main seal is sealed after the second package body is overflowed and the second package body is cut. Furthermore, two package bodies of one processing unit can overflow for filling, sealing and cutting according to the process requirements of filling speed, yield and the like, so that the efficiency is greatly improved.

In some embodiments, the package body is provided with a main seal area 103, the main seal area 103 and the inner fold line 104 of the inner fold angle 101 do not intersect. The purpose of this arrangement is to facilitate the opening of the package structure 100, i.e. the package body can be opened directly from the position of the inner fold 101, which is convenient and labor-saving to operate.

Note that the inner fold line 104 is herein referred to as an inner fold line 104 where the inner fold angle 101 area is folded inwards. The outer folding line, namely the included angle between any two surfaces on the outer side of the package is larger than 180 degrees, and the folding line between the two surfaces which are outwards convex is the outer folding line; vice versa, the present case only defines and discusses the inner fold line 104 on the inner fold corner 101 of the package.

It should be noted that, the package body is provided with an inward folded corner 101 formed by inward folding, and the seal of the inward folded corner 101 is not parallel to the main seal at the top of the package body (an included angle is formed between the two). Compared to the prior art packaging structure 100, the structure after corner insertion is different, and the sealing line of the turned-in corner after corner insertion needs to be aligned with the transverse main sealing line, so that the turned-in corner is still stressed, and therefore, besides ensuring the sealing performance of the sealing of the turned-in corner, the sealing strength of the turned-in corner is also required. In the package structure 100 provided by the embodiment of the application, the seal of the inner folded corner 101 is not parallel to the main seal, and in general, the main seal of the package body is disposed at the top of the package body and along the horizontal direction, and the seal of the inner folded corner 101 and the main seal are disposed at a predetermined angle. In this way, as the seal of the inner folding corner 101 and the main seal are arranged at a preset angle, the inner folding corner 101 is not stressed in structure, and the seal pressure born by the inner folding corner 101 is borne by the main seal, so that only the air tightness of the seal of the inner folding corner 101 is ensured, the seal strength of the inner folding corner 101 is not required to be ensured, and the inner folding corner 101 can be sealed after overflowing to the next package during filling so as to ensure sufficient filling content, simplify the process flow and reduce the production cost; meanwhile, the above arrangement mode can enable a user to open the package from the inner folding corner 101, so that the user is provided with a further option of opening the package from the outer folding corner 102, and the seal is opened from the inner folding corner 101, so that the main seal of the package main body can be completely unsealed on the premise of no tool, and the convenience and the labor saving are realized.

In some embodiments, the inner fold line 104 is a single fold line. Preferably, the internal folding angle 101 is a longitudinally arranged internal folding angle 101.

Specifically, the packaging body is a pillow-shaped packaging body, the inner folding angle 101 is arranged at one corner of the pillow-shaped packaging body, and the other three corners of the pillow-shaped packaging body are all provided with outer folding angles 102. In other words, the pillow-shaped package body has four folded corners, one folded corner is folded inwards to form an inner folded corner 101, and the other folded corners 102 are the same as the prior art. Of course, after forming one such pillow pack body, it can be directly packed without further processing.

In some embodiments, the sealing region 108 of the inside corner 101 is connected to the inside wall of the package. When the package is flat, the sealing region 108 of the inner corner 101 may be sealed not from the inside but from the outside of the package. It can be understood that the material of the sealing region 108 of the folded inner corner 101 and the material of the front and rear sides of the package body form a four-layer overlapping structure by sealing. Then, after the packaging material layer is longitudinally sealed, an opening for forming the inner folded corner 101 is cut at a preset position, and the inner folded corner 101 area is plugged into the package, after the preformed inner folded corner 101 is formed, the sealing and cutting module can seal and cut the sealing area 108 of the inner folded corner 101 of the package and the main sealing area 103 of the package at the same time, so that the sealing problem of the inner folded corner 101 can be more conveniently treated. Of course, the packaging material can be a single-layer plastic flexible package or a multi-layer composite packaging material. In this way, the consumer can also open the package by means of the inner fold 101, for example a packaged milk product with such an inner fold 101, and can open a small hole for inserting the straw 122 through the inner fold 101, or can thus completely open the main seal of the package.

In this embodiment, the included angle between the seal of the inner fold 101 and the main seal is preferably 90 °, so that the pillow package body can be further extruded into a package structure 100 having a rectangular top surface.

In some embodiments, the unsealed area 106 of the internal fold angle 101 is provided with a first flexible seal 107, and the area of the first flexible seal 107 is not less than half the area of the internal fold angle 101; and/or the inner fold line 104 of the inner fold angle 101 is parallel to the main sealing area 103, and the inner fold angle 101 which is longitudinally arranged is converted into the inner fold angle 101 which is transversely arranged by extruding the inner fold angle 101 on the package body, so as to form a second corner inserting structure for converting the package body into the package body with a rectangular cross section.

Further, the folding line of the inner folding angle 101 is parallel to the main sealing area 103, the inner folding angle 101 is arranged at the top of the package body, the top of the box of the package body is also provided with an outer folding angle 102, and the outer folding angle 102 is positioned at the opposite side of the inner folding angle 101; by squeezing the inner corners 101 on the package body, the longitudinally arranged inner corners 101 are converted into transversely arranged inner corners 101, forming a second corner insertion structure 114 for converting the package body into a package body having a rectangular cross section. Therefore, the package body can be guaranteed to be full through overflow filling, and the transportation cost is guaranteed through space change.

Specifically, in order to facilitate the extrusion and folding of the pillow-shaped packaging body into the packaging structure 100 with the rectangular top surface, one corner of the pillow-shaped packaging body provided with the inner folded corner 101 can be extruded and folded to form the second corner inserting structure 114, and the second corner inserting structure 114 is provided with a hollowed-out structure for the pillow-shaped packaging body to form the packaging structure 100 with the rectangular top surface. This facilitates the press folding of the pillow pack body to form the second corner structure 114, which ultimately results in the pack structure 100 having a rectangular top surface.

Meanwhile, the hollow structure part is further filled with a first flexible sealing part 107, and the area of the first flexible sealing part 107 is not less than half of the area of the inner folded corner 101, the first flexible sealing part 107 can be a film structure/membrane for covering the hollow structure, and the second corner inserting structure 114 formed after folding and the film structure arranged on the second corner inserting structure 114 can be connected to the inner side wall of the side part of the packaging structure 100, so that when the packaging structure 100 needs to be opened, the top of the packaging structure 100 can be lifted to tear the film structure on the second corner inserting structure 114, thereby forming an outlet of the beverage.

And continuing the next processing on the pillow-shaped packaging bag, firstly arranging a hollow structure in the middle area for forming the second corner inserting structure 114, then arranging a film structure/membrane on the hollow structure, finally extruding and folding to form the second corner inserting structure 114, sealing the second corner inserting structure 114 and the membrane by using an ultrasonic sealing machine, and then fixing the second corner inserting structure 114 and the membrane on the inner side wall of the side part of the packaging structure 100, thus forming the packaging structure 100 with a rectangular top surface.

Further, the sealing area 108 of the inner folded corner 101 of the flat package body 105 is provided with a second flexible sealing portion 109, the second flexible sealing portion 109 may also be a film structure, the second flexible sealing portion 109 is used for sealing the seal of the inner folded corner 101, and when the package is unpacked at one side of the inner folded corner 101, a pouring outlet may be formed.

In some embodiments, the package body may also be provided with two inner folded corners 101, where the two inner folded corners 101 are disposed on opposite sides of the bottom of the package body, and the top of the package body is provided with an opening; and/or the package body is a flat cup structure, and two first corner insertion structures 111 are formed by pressing two inner corners 101 on the flat cup structure 110, so that the flat cup structure 110 can be converted into a cup with a rectangular cross section.

With respect to the embodiment of the folding cup, it should be noted that the disposable cups of the prior art are divided into two types: 1. a common disposable round cup 2, an envelope type folding cup 3 provided by a supermarket and a folding cup with a paper shopping bag structure. Wherein, the round cup has no folding property and is not convenient to carry; the envelope type folding cup has no stability, cannot stand on a table and can only be held by hand; the paper bag type folding cup has no self-fixing part, and is easy to pinch and overflow when being taken up. The bottom of the folding cup body provided by the embodiment of the application can be fixed by itself and stably stand on a table top; the upper part can also be provided with a self-fixing structure, so that a customer can hold the cup without scattering, and the cup has the stable characteristic of the conventional disposable round cup. Of course, if no fixing structure is used, the customer holds the cup by pinching the two sides, and can be very stable and not spill.

In addition, the folding cup provided by the embodiment of the application can be made into disposable or non-disposable, can be flattened by connecting the cover, is folded to be ultrathin, is only made of two layers of materials, and is especially suitable for travelling.

In some embodiments, the included angle between the two inner fold lines 104 of the non-sealing area of the first corner inserting structure 111 is greater than 0 ° and less than 90 °, the bottom surface area of the package body with the first corner inserting structure 111 is greater than the cross-sectional area of the package body, the bottom surface of the package body protrudes towards the inner cavity direction of the package body and/or the top opening of the cup body is provided with a stable structure, the stable structure is movably connected to the cup body, and the stable structure is folded into the cup body to support the cup body.

In this embodiment, the bottom surface of the package body protrudes out of the horizontal plane, the bottom surface of the package body which is convex is pressed into the package body, the bottom surface of the package body protrudes towards the direction of the inner cavity of the package body, and the bottom surface of the whole package body is provided with a concave structure when seen from the outside, and the bottom surface is in a concave expansion trend at this time so that the package body is stable.

It should be noted that, the stabilizing structure provided at the top opening may be an upper cup cover or a stabilizing strip, and the stabilizing structure is located at the folding line position of the side surface of the cup body, and the stabilizing strip is folded into the cup body to support the cup body.

Further, an upper cup cover 112 is arranged at the top opening of the cup body, the upper cup cover 112 is movably connected with the cup body, and the upper cup cover 112 is folded into the cup body to support the cup body, so that the cup body can be kept in a propped-open state all the time; or the top opening of the cup body is provided with a stabilizing strip, the stabilizing strip is positioned at the side folding line position of the cup body, and the stabilizing strip is folded into the cup body so as to support the cup body.

It should be noted that, when processing, the body can be processed by adopting a processing technology of vertically processing the package of the inner folded angle 101, two cup bodies can be used as a processing unit, the two cup bodies are connected end to end, and when the cup bodies are provided with cup covers, the tops of the two cup bodies can be complemented into a group of continuous processing. Further, processing may be performed on the continuous material by first making two inner corners of the cup and sealing the sealing areas of the inner corners, then sealing the longitudinal sealing lines, and finally sealing the main sealing areas of each cup and cutting each cup.

Further, the number of the longitudinal sealing lines can be one or two, when the longitudinal sealing line is one, the continuous material strip is longitudinally folded to enable the cross section to be W-shaped, then two inner folding angles are simultaneously manufactured by a corner manufacturing unit in a mode of closing the die, then all sealing areas of the inner folding angles are sealed, then when the longitudinal sealing unit is operated, the packaging material strip with the W-shaped cross section is converted into an O-shaped, the sealing edges of the two longitudinal sealing areas are connected, then a continuous sealer is adopted to seal the longitudinal sealing areas, and finally the sealing unit and a cutting unit are used for sealing all the transverse sealing areas, and cutting or modifying is carried out to obtain a cup body or a cup body structure with a cup cover; when two longitudinal sealing lines are adopted, the longitudinal sealing lines are positioned on the front surface and the back surface of the cup body, the continuous material strips are longitudinally folded to enable the cross section to be in a V shape, then an inner folding angle is manufactured by an angle manufacturing unit in a mode of closing the mold, then an inner folding angle sealing area is sealed, then another group of inner folding angle material strips manufactured by the same working procedure are connected when the inner folding angle material strips are operated to a splicing and longitudinal sealing unit, then a continuous sealer is adopted to seal the two longitudinal sealing areas, finally the sealing unit and a cutting unit are adopted to seal all the transverse sealing areas, and cutting or modifying is carried out to obtain the cup body or the cup body structure with the cup cover.

In some embodiments, the packaging structure 100 is specifically a packaging structure 100 having a triangular top surface, the bottom surface of the packaging structure 100 is rectangular, the bottom surface of the packaging structure 100 is located in a horizontal plane, and the triangular top surface may be parallel to the bottom surface of the packaging structure 100, i.e. the triangular top surface is located in a horizontal plane, and the triangular top surface is a flat triangular top surface. In the flat triangle top packaging body, the included angle between the main sealing area 103 and the extension line of the inner fold line 104 is more than 0 degrees and less than 90 degrees, and the sealing area of the inner fold angle 101 can be provided with a second flexible sealing part 109.

Specifically, the inward folded corner 101 includes two overlapped triangular pieces 117, the second flexible sealing portion 109 includes two strip-shaped sealing layers 116, the two strip-shaped sealing layers 116 are respectively provided on the two triangular pieces 117, and the two strip-shaped sealing layers 116 are bonded after being overlapped; by pulling out the inside corner 101, the two strip-shaped sealing layers 116 are ruptured or separated to form a pouring spout for pouring out the beverage.

In some embodiments, the inner fold line 104 of the non-sealing region of the inner fold angle 101 is two fold lines, and the included angle of the two fold lines is less than 90 °; and/or the sealing area of the inner fold 101 is connected to the inner wall of the package body.

It should be noted that, the non-sealing area of the corner-inserted or roof-type inner folding corner 101 has two inner folding lines, and the sealing area has only one inner folding line 104; while the inner fold line 104 of the sealing area and the non-sealing area of the longitudinal inner fold angle 101 has an inner fold line. However, the number of the inner folding lines 104 may be not limited to one, but may be more than one, and if there is more than one inner folding line 104, the inner folding line 101 may be in a multi-layered folded (accordion-like) inner folding state. In addition, a handle may be provided on the outer wall of the inner fold 101 for pulling the inner fold 101 and breaking the sealing area of the inner fold 101 to form a pouring spout for pouring the beverage.

It should be noted that, for the single-roof package body described above: the capacity of the packaging body is better than that of a flat triangular top packaging body, the stability is better than that of a rectangular shape with space transformation, and compared with the flat triangular top packaging body and the rectangular top packaging body, the flat triangular top packaging body and the rectangular top packaging body are both required to be opened by scratching a gap with nails, so that the packaging body is not friendly to the old. For non-overlapping single-roof package bodies: the handle can be hidden in roof type angle, does not influence the vanning packing, pulls out the handle very easily from the angle in, and the pouring outlet that forms after pulling out can be used to the flavouring such as pouring cumin, and the structure of roof type angle is more easy to plug back again than the interior dog-ear of level three to for the next time uses.

In some embodiments, the package body is provided with a main sealing area 103, the main sealing area 103 intersecting with an inner fold line 104 of the inner fold angle 101. At this time, since the folding lines of the main seal 103 and the inner corner 101 intersect, there is a problem in that a hindrance is generated at the time of unsealing, and it is necessary to provide a corresponding flexible seal 121 for one-step opening.

In some embodiments, the non-sealing area 106 of the inner folded corner 101 is provided with a third flexible sealing portion 125, the third flexible sealing portion 125 is used for folding the inner folded corner 101 of the flat triangle top package body, the third flexible sealing portion 125 may be a film structure, and the third flexible sealing portion 125 and the film layer of the package body are integrally formed.

It should be noted that, the intersection of the main seal area and the fold line of the inner fold 101 means that the seal area 108 of the inner fold 101 overlaps the main seal area, and that there is a flexible seal 121 in the non-seal area 106 of the inner fold 101, and that for the single inner fold package embodiment processed from a single package, that longitudinal inner fold 101 has an impeding effect on the folding of the package, unless some of the inner fold 101 area is free to fold upon itself; for the corner-insert type inner folded corner 101 formed by processing the split package, the flexible sealing part 121 at the position of the inner folded corner 101 can also cover a tearing guiding part, and the tearing guiding part can be used for breaking to form an opening of the package.

Further, the folded inner folding corner 101 has obvious upper and lower position relationship, so that the inner folding corner is divided into an upper part and a lower part, one side of the upper part is connected with a sealing area of the inner folding corner 101, and the other side is connected with the side edge of the top surface of the package; the lower part is a gusset 117, the bottom edge of which is attached to the upper edge of the outer side wall of the package, the remaining edges of which are attached to the upper part, and the opening and flexible seal 121 is located in the lower part of the inner fold 101. The flexible sealing portion 121 is further provided with a tear guiding portion that covers the entire area of the inner corner 101, including the upper and lower portions of the inner corner 101, and is folded in the same manner as the inner corner 101. The two ends of the guide tearing part are also provided with pull rings 118 which are arranged at the connecting edge positions of the upper part and the top surface of the inner folding angle 101. The guide tearing part is pulled by the pull ring 118 to separate from the whole inner folding corner 101 area, and the flexible sealing part 121 on the inner folding corner 101 is broken, so that a clean pouring outlet can be obtained, a customer needs to pinch the package to expose the opening of the inner folding corner 101, and after the use is finished, the customer can automatically return to the initial position state by loosening the inner folding corner 101 of the package, namely, the upper part of the inner folding corner 101 covers the opening covering the lower part of the inner folding corner 101, so that the package opening is in a safe and sanitary environment.

In some embodiments, the sealing area of the inner folded corner 101 is provided with a fourth flexible sealing portion 126, and the fourth flexible sealing portion 126 in a folded shape may be a film structure, and the fourth flexible sealing portion 126 and the film layer of the package body are integrally formed. When the main seal is sealed, the two films in the folded state of the inner folding corner 101 are mutually fused, so that the package can be opened in one step without forming a barrier when the package is opened through the inner folding corner 101.

It should be noted that, if the sealing area 108 of the inner fold 101 is completely formed as a film structure, the stability of the package will be reduced, the bearing capacity of the position of the inner fold 101 will be reduced, and a breaking phenomenon may occur during stacking and transportation, so that the sealing local area of the inner fold 101 near the fold line is optimally formed as a film structure, and the rest parts can support the inner fold 101 and the film structure. The open nature of the film layer is also destructive as it is sealed together, except that the film layer in this embodiment is broken at a location away from the end of the fused film layer area that is opposite the fold line.

In some embodiments, the package body is a composite structure of a hard layer and a film layer, and the hard layer at the position of the inner fold line has a fault structure. In this way, when a consumer opens the package, the portion of the rigid layer located at the inner fold 104 of the non-sealing area of the inner fold 101 does not interfere with the opening of the top seal, and the package can be opened by simply tearing the film layer at the inner fold 104 of the inner fold 101.

In the composite structure, the development of the fault structure of the hard layer may be regarded as that only the thin film layer is provided at the folded line position of the sealing region of the inner fold 101, and only the thin film layer at this position is required to be broken when the main seal is opened. Compared with the film layer integrated with the previous embodiment, the film layer has stronger pressure bearing capability, but the broken position of the film layer is different, and the integrated embodiment is more labor-saving than the embodiment according to mechanical calculation.

In some embodiments, the inner fold 104 of the non-sealing region of the inner fold angle 101 is two fold lines, the two fold lines having an included angle of less than or equal to 90 °.

The internal folded angle 101 in this case is not limited to a transverse arrangement or a longitudinal arrangement, and the internal folded angle 101 is preferably a roof-type internal folded angle 101 arranged in a transverse arrangement.

It can be understood that the split-type processing seals are overlapped, and the single-roof type internal folded corner packaging body and the inserted corner packaging structure body are identical in angle and are important embodiments capable of realizing split-type high-speed processing. Compared with a roof type packaging body and an inserting angle type packaging body, the folding edge of the inner folding angle 101 and the main seal are not overlapped, the processing of the packaging body, in which the folding edge of the inner folding angle 101 and the main seal are overlapped, is less prone to breaking bags, the processing efficiency is higher, and the transportation is more stable.

In some embodiments, the package body is provided with an opening, and the opening is further provided with a sealing part 121, wherein the sealing part 121 is used for sealing the opening; the inner side of the package body corresponding to the opening is also provided with a cavity structure for isolating the package accessories from the contents in the package body, and the cavity is internally provided with a straw 122, a soup ladle, seasonings and other package accessories; the sealing portion 121 comprises a sealing film and a tear-off guide strip 131, and a portion of the package fitment is connected to the sealing portion 121 by pulling the tear-off guide strip 131 from one end of the opening to break the sealing film and pull the package fitment out for use. Of course, the sealing portion 121 and the film layer of the package body may be integrally formed.

Specifically, a first opening 119 is formed on the inner folded corner 101, a second opening 120 is formed on the upper portion of the side wall of the package body provided with the inner folded corner 101, the first opening 119 is communicated with the second opening 120, a sealing portion 121 is further formed on the package body, the sealing portion 121 is used for sealing the first opening 119 and the second opening 120, and the sealing portion 121 can be a film; the inner wall of the package body is provided with a suction pipe 122, the suction pipe 122 comprises an upper part, a lower part and a flexible movable joint connecting the upper part and the lower part, and the upper part and the flexible movable joint are positioned at the first opening 119 and the second opening 120 of the package body and are connected with a sealing part 121; a layer of film cavity structure 123 is further arranged at the inner side of the package body corresponding to the first opening 119 and the second opening 120, the area covered by the film cavity structure 123 is larger than the sum of the areas of the first opening 119, the second opening 120, the upper part and the bendable movable joint, and the film cavity structure 123 is used for wrapping the upper part and the bendable movable joint so as to isolate the upper part and the bendable movable joint from the content in the package body; the lower part is fixedly connected to the inner wall of the package body; the sealing portion 121 includes a sealing film and a tear guiding strip 131, and the sealing film is broken by pulling the tear guiding strip 131 from one end of the second opening 120, and the upper portion and the bendable movable joint are pulled out for drinking.

It should be noted that, the above corner-inserted package and the straw 122 can realize one-step unsealing, and the straw 122 can be driven to come out from the position of the inner folded corner 101 only by tearing the tear strip 131 and pulling out; after drinking, the straw 122 can be plugged back into the isolation cavity, so that the straw is convenient to drink next time and cannot fall ash.

Further, a pull ring 118 is provided on the inner folding corner 101 of the package body, and the pull ring 118 can be used for a customer to tear off the inner folding corner 101 to form an opening structure. The packaging material is a single-layer material or a multi-layer composite material.

In some embodiments, the packaging structure 100 is formed of two parts that are spliced one above the other, including a first part having an internal fold 101 and a second part not having a fold; and/or the second portion is circular in cross-section.

When the package is made of a single-layer material, the package material can be made of a plastic material or a single-layer environment-friendly material, and the package shape can be a hexagon or a flat bag; when the packaging material is a multi-layer material, the packaging material can be a paper-plastic composite material, is not limited by the number of layers of materials, can be of a five-layer or seven-layer structure in the prior art, can also be of a three-layer structure, and is respectively a plastic film layer, an aluminum foil layer and a printing paper layer from inside to outside, and can also be only a plastic film layer and a printing paper layer; of course, the upper and lower parts of the package body can also be respectively of a single-layer structure and a multi-layer composite structure, when the materials of the upper and lower parts of the package are designed to be completely different, a splicing process can be adopted, and when the materials of the upper and lower parts of the package are designed to be locally identical, the materials of the upper and lower parts of the package are intermittently combined with other materials on the material layers of the same material, so that the material structures of different positions of the package material have differences. Of course, the packaging material can also be extruded and formed into a tubular integrated structure, no longitudinal sealing line exists, and then the angle, the filling and the sealing are also manufactured by the integrated processing equipment provided by the scheme; or split processing is adopted, material blocks are cut out, indentation and folding are carried out, the material blocks are sent to a stacking unit, and the material blocks enter into an angle making and filling procedure.

Furthermore, if the single-layer material is packaged at the position of the non-sealing area, a preset opening is needed, the opening can be processed in a treatment mode of locally weakening the opening position, and if the breaking rate of the package is considered, a layer of material layer with the area larger than the opening size can be added at the opening position of the inner wall of the package so as to bear the internal pressure of the package at the opening position.

The longitudinal seal area 127 (longitudinal seal line) of the package should be disposed so as to avoid the flip angle of the package. The package unfolding diagram applied to various processing technologies in the matching diagram is formed by unfolding the package from the position of the longitudinal sealing line to show the position of the folding line; cut 128 is a partial cut of the package prior to corner making to form a fold; the cut line 129 is a marking line for cutting and decorating the main sealing area 103 of the package body after corner making and sealing fixation, and because of the same side processing condition of vertical integrated processing, the package has a residual material to be cut between the packages, and the residual material area is preferably cut Cheng Dishou.

It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. In addition, the relation between the first condition and/or the second condition in the present application is any one of these three possibilities, that is, the first condition, the second condition, the first condition and the second condition are included.

The processing equipment, the processing method and the packaging structure provided by the application are described in detail. The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the inventive arrangements and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.

Claims

1. A processing apparatus for processing a packaging structure, comprising:

the system angle module for the angle is folded in shaping on the three-dimensional package body, includes:

an outer corner module disposed toward the support module for embedding into the stereoscopic packaging body to form a preformed inner corner structure on the stereoscopic packaging body;

The extrusion sealing module is used for extruding the three-dimensional package body to enable the preformed internal folded angle structure to be a shaping internal folded angle structure and is used for sealing and fixing the shaping internal folded angle structure;

and the post-processing module is used for post-processing the three-dimensional package body after angle making so as to form the package structure.

2. The processing apparatus of claim 1, wherein the stereolithography module is connected to the support module, and the two packaging materials are a processing unit, the processing unit being connected end to end, the two packaging materials being disposed in a central symmetry about a connecting line of the two packaging materials, or the two packaging materials being disposed in a mirror symmetry about a connecting line of the two packaging materials.

3. The processing apparatus of claim 2, wherein the support module comprises:

a fixed supporting unit connected with the three-dimensional forming module and used for supporting at least one part of the three-dimensional package body;

the movable supporting unit is movably arranged on the three-dimensional forming module and is used for being matched with the external angle forming module so as to form the preformed internal angle folding structure on the three-dimensional packaging body;

the processing equipment further comprises a control module, wherein the control module is used for controlling the movable supporting unit to move relative to the three-dimensional forming module.

4. A processing apparatus according to claim 3, wherein the movable supporting unit is in particular a metal plate, and the control module is in particular an electromagnet module, and the electromagnet module is energized to attract the metal plate by magnetic attraction to support and clamp the three-dimensional package body.

5. The processing apparatus of claim 2, wherein the compression seal module comprises:

the side extrusion unit is arranged towards the support module and is used for extruding the preformed internal folded angle structure to form the shaped internal folded angle structure;

the first sealer is connected with the side extrusion unit and used for sealing and fixing the shaping inner folded angle structure.

6. The processing apparatus of claim 2, wherein the preprocessing module comprises:

an indentation unit for forming an indentation on the packaging material;

a longitudinal sealer for sealing the longitudinal sealing area of the packaging material;

the notch and processing unit is arranged between the indentation unit and the three-dimensional forming module and is used for forming a position notch of the preformed inward-folding angle structure on the packaging material; and/or

7. The processing apparatus of claim 2, wherein the post-processing module comprises:

and the main sealing cutter is arranged below the corner making module and is used for sealing the main sealing area of the filled three-dimensional package body and cutting the three-dimensional package body.

8. The processing apparatus of claim 1, wherein said stereolithography module is not connected to said support module, and wherein a single said packaging material is a single processing unit.

9. The processing apparatus of claim 8, wherein the preprocessing module comprises:

an indentation unit for forming an indentation on the packaging material;

a cutting unit for cutting out the packaging material;

a folding unit for folding the packaging material;

and the sucker unit is arranged between the stacking unit and the three-dimensional forming module and is used for sucking the packaging material from the stacking unit and transferring the packaging material to the three-dimensional forming module.

10. The processing apparatus of claim 8, further comprising a rail on which the support module and the outer angular module are independently arranged and movable along the rail;

the track is provided with a first track area and a second track area, and the running speed of the support module and the outer angle forming module in the first track area is higher than that in the second track area;

when the first track area operates, the support module and the outer angle forming module operate at a distance;

and when the second track area operates, the support module and the outer angle forming module operate after being combined, so that the preformed inner angle folding structure is formed on the three-dimensional package body after the support module and the outer angle forming module are combined.

11. The processing apparatus of claim 10, wherein the compression seal module comprises:

the second sealer is arranged in the second track area and is used for sealing and fixing the shaping inner folded angle structure and the main seal.

12. The processing apparatus of claim 10, wherein the rail is an annular rail, and the support module and the outer angular module are both independently arranged on the annular rail and are movable along the annular rail;

the automatic mold withdrawing device is arranged on the supporting module, and when the supporting module moves below the annular track, the automatic mold withdrawing device stretches out of the supporting module by means of gravity so as to separate the angle making and the sealed three-dimensional packaging body from the supporting module;

the three-dimensional packaging device comprises a support module, a plurality of annular rails, a baffle plate and a support module, wherein the annular rails are arranged on the support module, the baffle plate is arranged towards the annular rails and is used for enabling the three-dimensional packaging body after corner manufacturing and sealing to be separated from the support module at a preset position.

13. The processing apparatus of claim 10, wherein the post-processing module comprises:

the Z-shaped track is arranged below the track;

a filling unit for filling the three-dimensional package body with contents;

and the side extrusion and continuous sealing unit is used for extruding the three-dimensional package body from two sides and sealing the residual transverse sealing area on the three-dimensional package body.

14. A processing method for processing a packaging structure using the processing apparatus according to any one of claims 1 to 13, comprising:

preprocessing the packaging material through a preprocessing module so that the packaging material becomes a foldable packaging body;

transferring the three-dimensional packaging body from the three-dimensional forming module to a supporting module, and supporting the three-dimensional packaging body through the supporting module;

forming a preformed inner angle structure on the three-dimensional package body through an outer angle module and the support module;

the three-dimensional package body is extruded through the extrusion sealing module so that the preformed internal folded angle structure is formed into a shaping internal folded angle structure, and the shaping internal folded angle structure is sealed and fixed through the extrusion sealing module;

and carrying out post-treatment on the three-dimensional package body after angle making through a post-treatment module so as to form the package structure.

15. The method of processing of claim 14, wherein when the stereolithography module is attached to the support module and the number of packaging materials is two, the step of forming a preformed internal corner structure on the stereolithography body by the external corner module and the support module comprises:

The three-dimensional package body is supported by a fixed supporting unit;

the movable supporting unit is controlled by the control module to move relative to the three-dimensional forming module, and is matched with the outer angle forming module so as to form the preformed inner angle folding structure on the three-dimensional packaging body.

16. The method of processing of claim 15, wherein the step of extruding the three-dimensional package body through an extrusion sealing module to form the preformed fillet structure into a shaped fillet structure and sealing and fixing the shaped fillet structure through the extrusion sealing module comprises:

extruding the preformed internal folded angle structure through a side extrusion unit to form the shaped internal folded angle structure;

and sealing and fixing the shaping inner folded angle structure through a first sealing device.

17. The method of processing of claim 15, wherein the step of pre-treating the packaging body by a pre-treatment module to render the packaging material into a foldable packaging body comprises:

embossing crease marks on the packaging material through an embossing unit;

adding a fitting into the packaging material by a fitting adding unit; and/or

And performing incision treatment on the position on the packaging material, where the preformed internal folded angle structure is formed, through an incision and treatment unit.

18. The method of processing of claim 15, wherein the step of post-processing the angular three-dimensional packaging body by a post-processing module to form the packaging structure comprises:

filling the contents into the three-dimensional package body after corner making through a filling pipe;

and sealing the main sealing area of the filled three-dimensional package body through a main sealing cutter, and cutting the three-dimensional package body.

19. The method of processing of claim 18, wherein the step of filling the contents into the gusseted body via the filling tube comprises:

20. The method of processing of claim 18, wherein after the step of filling the contents into the gusseted three-dimensional package body through the filling tube, further comprising:

21. The method of processing of claim 14, wherein when the stereolithography module is not connected to the support module and the packaging material is a single packaging material, the step of forming a preformed internal corner structure on the stereolithography body by the external corner module and the support module comprises:

arranging the support module and the outer angle forming module on a track and enabling the support module and the outer angle forming module to move along the track;

when the first track area of the track operates, the support module and the outer angle forming module keep a space between the support module and the outer angle forming module to operate;

the support module and the outer corner module are both clamped when the second track area of the track is running so as to form the preformed inner corner structure on the three-dimensional package body.

22. The method of processing of claim 21, wherein the step of extruding the three-dimensional package body through an extrusion sealing module to form the preformed fillet structure into a shaped fillet structure and sealing and fixing the shaped fillet structure through the extrusion sealing module comprises:

extruding the preformed internal folded angle structure through two extrusion strips to form the shaped internal folded angle structure;

And sealing and fixing the shaping inner folded angle structure through a second sealing device.

23. The method of processing of claim 21, wherein the step of pre-treating the packaging material by a pre-treatment module to render the packaging material into a foldable packaging body comprises:

forming an indentation on the packaging material by an indentation unit;

cutting out the packaging material by a cutting unit;

folding the packaging material by a folding unit;

and sucking the packaging material from the stacking unit through a sucker unit, and transferring the packaging material to the three-dimensional forming module.

24. The method of processing of claim 21, wherein the step of post-processing the angular three-dimensional packaging body by a post-processing module to form the packaging structure comprises:

the three-dimensional packaging body is received by a receiving trolley arranged on the Z-shaped track and is driven to enter the next station;

filling the three-dimensional package body with contents through a filling unit;

And extruding the three-dimensional package body from two sides through side extrusion and continuous sealing units, and sealing the residual transverse sealing areas on the three-dimensional package body.

25. A packaging structure obtainable by a process according to any one of claims 14 to 24, comprising a packaging body provided with an internal fold.

26. The packaging structure of claim 25, wherein the packaging body is a folded planar material packaging body, and the packaging body is further provided with an external fold angle, the external fold angle being located opposite to the internal fold angle; and/or

And a handle is arranged on the inner folded corner of the packaging body and used for opening the packaging body.

27. The packaging structure of claim 26, further comprising:

The sealing part is connected with the outer side wall of the package body.

28. The packaging structure of claim 25, wherein said package body is provided with a main seal area, said main seal area being non-intersecting with an inner fold line of said inner fold angle.

29. The packaging structure of claim 28, wherein the inner fold line is a single fold line.

30. The packaging structure of claim 29, wherein the non-sealing region of the inner fold is provided with a first flexible seal, and wherein the area of the first flexible seal is not less than half the area of the inner fold; and/or

The inner folding line of the inner folding angle is parallel to the main sealing area, and the inner folding angle which is longitudinally arranged is converted into the inner folding angle which is transversely arranged by extruding the inner folding angle on the packaging body, so that a second inserting angle structure is formed, and the packaging body is converted into a packaging body with a rectangular cross section.

31. The packaging structure of claim 30, wherein two of said inward folds are disposed on opposite sides of a bottom of said package body, said top of said package body being provided with an opening; and/or

The packaging body is of a flat cup body structure, and two first corner inserting structures are formed by extruding two inner folded corners on the flat cup body structure so that the flat cup body structure can be converted into a cup body with a rectangular cross section.

32. The packaging structure of claim 31, wherein the two inner fold lines of the non-sealing area of the first corner insertion structure form an included angle of more than 0 ° and less than 90 °, the bottom surface area of the packaging body with the first corner insertion structure is larger than the cross-sectional area of the packaging body, and the bottom surface of the packaging body protrudes toward the inner cavity direction of the packaging body; and/or

The top opening part of the cup body is provided with a stable structure, the stable structure is movably connected with the cup body, and the stable structure is folded into the cup body so as to support the cup body.

33. The packaging structure of claim 29, wherein said primary seal area is at an angle greater than 0 ° and less than 90 ° to the extension of said inner fold line; and/or the sealing area of the inner folded angle is provided with a second flexible sealing part.

34. The packaging structure of claim 28, wherein said inner fold line of said non-sealing area of said inner fold angle is two fold lines, the included angle of two said fold lines being less than 90 °; and/or

The sealing area of the inner folded angle is connected with the inner wall of the package body.

35. The packaging structure of claim 25, wherein said package body is provided with a main seal area, said main seal area intersecting an inner fold line of said inner fold angle.

36. The packaging structure of claim 35, wherein the non-sealing area of the inner fold is provided with a third flexible seal; and/or the sealing area of the inner folding angle is provided with a fourth flexible sealing part which is folded in half.

37. The packaging structure of claim 35, wherein the packaging body is a multi-layer composite structure that is divided into a rigid layer and a film layer, and the rigid layer at the inner fold line is a fault structure.

38. The packaging structure of claim 35, wherein said inner fold line of said non-sealing area of said inner fold angle is two fold lines, and an included angle of two said fold lines is less than or equal to 90 °.

39. The packaging structure of claim 25, wherein an opening is provided in the packaging body, the opening further provided with a sealing portion for sealing the opening;

the inner side of the package body corresponding to the opening is also provided with a cavity structure; and/or

The utility model discloses a packing accessory, including the cavity structure, be equipped with the packing accessory in the cavity structure, the packing accessory with the content in the packing body is isolated, sealing part includes sealing film and leads tearing strip, the part of packing accessory is connected sealing part is through follow open-ended one end is pulled lead tearing strip is in order to destroy sealing film, and pulls out the packing accessory is used.

40. The packaging structure of claim 25, wherein the packaging structure is formed of two parts spliced one above the other, including a first part having the internal fold angle and a second part having no fold angle; and/or

The second portion is circular in cross-section.