Liquid food composite paper container finished product process and production line

Abstract

The present invention is a liquid food composite paper container finished product process, comprising the following steps: step one, folding and sealing the container pre-finished state piece and retaining a container filling opening at one end; step two, filling liquid through the container filling opening; step three, folding and sealing the container filling opening; also includes scheme one or scheme two regarding a drinking port component: scheme one, before or at the same time as step two, executing step B, that is, sealing the drinking port component at the drinking port position on the container pre-finished state piece before or at the same time as filling liquid through the container filling opening; scheme two, before or at the same time as or after step two, executing step C, that is, setting the drinking port position on the container pre-finished state piece before or at the same time as filling liquid through the container filling opening.

Description

Technical Field

[0001] The invention relates to a finished product process and production line of a composite paper container for liquid food, and is particularly suitable for composite paper packages. Background Art

[0002] At present, composite paper packaging is a packaging product used for liquid food. The six-layer composite paper packaging composed of paper, aluminum and plastic can effectively block air and light, making the consumption of milk and beverages more convenient and safer, and extending the shelf life, achieving higher packaging efficiency.

[0003] Composite paper packages have found a good balance between protection and emotional needs. Compared with plastic bottles and glass bottles, brick-shaped and pillow-shaped composite paper packages have a relatively large volume ratio, and this packaging shape is easier to pack, transport and store. From a technical point of view, composite paper packages are six-layer composite paper packages composed of paper, aluminum and plastic, which can effectively block air and light, which are the killers that easily cause milk and beverages to deteriorate. Therefore, composite paper packages make the consumption of milk and beverages more convenient and safe, and have a longer shelf life, achieving higher packaging efficiency. CN201720753102.X A composite paper packaging processing equipment cannot achieve automated assembly line production.

[0004] Although the existing CN201710866981.1 A liquid food packaging container, packaging material and filling method provides a filling method, in actual production, the bottle cap is installed later, which causes secondary contamination and requires secondary disinfection, which easily causes contamination and affects the quality of the liquid.

[0005] In order to achieve the goal of capping before filling, the rooftop bag adopts a roof structure and designs a bottle cap assembly on one side of the roof. However, the bottle cap opening size is limited, and it is impossible to design a large-opening bottle cap on the top. In addition, due to the existence of the roof structure, it is impossible to arrange it neatly during transportation or palletizing, which wastes space and makes it impossible to completely empty the liquid in the container. How to remove the roof to facilitate palletizing or transportation and reduce waste, and also to increase the diameter of the bottle mouth has become a technical problem that needs to be solved urgently. Summary of the invention

[0006] The technical problem to be solved by the present invention is generally to provide a finished product process and production line of a composite paper container for liquid food, which cleverly sets the cover process before or at the same time as filling, avoids secondary pollution caused by filling, reduces the number of disinfection times, ensures the taste of the beverage, and improves production efficiency. Compared with the existing patented technology, it improves a set of more convenient and controllable specific production line processes. (The top of the container refers to the part where the bottle mouth of the finished container is located, the bottom is the part that contacts the ground after the container is placed, and the rest is the side.) Compared with the traditional structure, the present invention reduces the upper folding ears, reduces the composite paper consumables, reduces the leakage caused by too much contact surface, and reduces waste gas emissions, thereby greatly simplifying the process, facilitating operation, eliminating the side gap of the container during stacking, avoiding the disadvantages of traditional folding ears scratching hands, breaking the monopoly of foreign multinational companies on technology, and compared with the injection molding process, the time is short and the efficiency is high, and the sealing bonding installation after filling can be realized, eliminating the cleaning process of the injection molding residue, avoiding secondary pollution, avoiding the existence of draft angle, and avoiding the residual injection molding taste. The injection molding process requires a prefabricated opening at the bottom or side of the container to facilitate the mold to enter the container cavity from the prefabricated opening, cool and demould after shaping, remove the mold, and then perform a series of complex processes such as disinfection and rinsing. However, the present invention can complete the above process without prefabricated openings. The lid of the present invention is free of chemical glue pollution. The container can be a common structure such as a bag, a box, etc.

[0007] To solve the above problems, the technical solution adopted by the present invention is:

[0008] A liquid food composite paper container finished product process, comprising the following steps;

[0009] Step 13, folding and sealing the pre-finished container parts and leaving one end of the container filling opening;

[0010] Step 2, filling the liquid through the container filling opening;

[0011] Step three, folding and sealing the filling opening of the container;

[0012] Also included is solution 1 or solution 2 regarding the drinking port assembly:

[0013] Solution 1: before or at the same time as step 2, perform step B, that is, before or at the same time as filling the liquid through the container filling opening, seal the drinking opening assembly at the drinking opening position on the container pre-finished state part;

[0014] Solution 2: before, at the same time or after step 2, perform step C, that is, before or at the same time as filling liquid through the container filling opening, set the drinking port position on the container front state part.

[0015] A liquid food composite paper container finished product production line, comprising a frame assembly, a conveying device arranged on the frame assembly and used for conveying composite paper between workstations, a filling machine arranged at a filling station of the frame assembly, a bag sealing machine arranged at a bag sealing station after the filling machine, and a bag body folding machine arranged at a bag body sealing station before or at the same time as the filling machine; the bag body folding machine folds and bonds the pre-finished state parts of the container, folds and seals the pre-finished state parts of the container, and retains a container filling opening at one end;

[0016] Also includes Option 1 or Option 2:

[0017] Solution 1: A drinking spout assembly sealing machine is provided before or integrated with the filling machine and is located at a drinking spout assembly sealing station;

[0018] Option 2: Before, integrated with or after the filling machine, a drinking port position setting station is provided on the container's finished product front state part; after the drinking port position setting station or after the integration, a capping machine for installing a drinking port assembly at the drinking port position is provided.

[0019] The invention has reasonable design, low cost, durability, safety and reliability, simple operation, time and labor saving, money saving, compact structure and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure in which the drinking port assembly of the present invention is a sealing membrane.

[0022] Figure 3 It is a schematic structural diagram of the drinking port assembly of the present invention as a cover body.

[0023] Figure 4 It is a schematic diagram of the structure of the drinking mouth component of the present invention with the mouth composite paper.

[0024] Figure 5 It is a schematic diagram of the structure of the sheet material of the present invention after folding.

[0025] Figure 6 It is a schematic diagram of the invention point of the assembly line of the present invention.

[0026] Figure 7 It is a schematic diagram of the pipeline of the present invention.

[0027] Figure 8 It is a schematic diagram of the improved assembly line of the present invention.

[0028] Fig. 9 It is a schematic diagram of the capacity improvement of the present invention.

[0029] Among them: 1. Frame assembly; 2. Conveying device; 3. Lowering device; 4. Sheet material; 5. Filling machine; 6. Bag folding machine; 7. Bag sealing machine; 8. Loading machine; 9. Cutting machine; 10. Creasing machine; 11. Auxiliary pressing hand; 12. Punching machine; 13. Orifice; 14. Creasing line; 15. Drinking mouth piece; 16. Bottle mouth feeding machine; 17. Bottle mouth feeding manipulator; 18. Bottle mouth sealing machine; 19. Capping piece; 20. Capping feeder; 21. Capping loading robot; 22. Capping auxiliary robot; 23. Forming mold; 24. Mold robot; 25. Bag folding robot; 26. Extrusion robot; 27. Sterilizer; 28. Sealing folding robot; 29. ​​Folding earphone; 30. Sealing film; 31. Bottle cap assembly; 32. Mouth composite paper; 33. Container drinking mouth; 34. Container filling opening; 40. Membrane layer. DETAILED DESCRIPTION

[0030] like Figure 1-9 As shown, the finished product process of the composite paper container for liquid food in this embodiment includes the following steps; (According to the actual production, some processes / equipment can be outsourced or prefabricated in advance, which are all the contents to be protected by the present invention, and outsourcing is a commercial behavior). The following schemes can be a technical scheme alone or in combination, which is the protection scope of the present invention.

[0031] As the first set of parallel solutions for cutting improvement steps,

[0032] a) before step 1 and step 3, including the following steps;

[0033] Step 11, cutting the coil into sheets 4 of prefabricated size (the number can be multiple sheets);

[0034] Steps one and two, perform indentation on the sheet 4 for folding and forming; preferably outsourcing is used to achieve output of multiple sheets from a batch of coils, so that it is convenient to customize indentations on different indentation molds according to different needs, thereby achieving diversified container production, and working on a batch indentation machine at the same time, improving indentation efficiency, and achieving subsequent side-by-side work to avoid indentation affecting cutting efficiency.

[0035] or b) including the following steps before step 1 or 3;

[0036] Step one, making indentations on the coil for folding and forming;

[0037] Step 1 and 2, cutting the coil into sheets 4 of prefabricated size; thereby achieving continuous indentation, only one indentation alignment is required, and subsequent feeding only requires a constant speed, eliminating the disadvantage of a) requiring multiple indentation alignments.

[0038] For plan a) in the first set of parallel plans or plan b) in the first set of parallel plans:

[0039] The following parallel scheme is also performed: a1), before or at the same time as step one or step two, step A or step B is performed;

[0040] b1), before or at the same time as step 1 or step 3, perform step A or step B;

[0041] c1), between step 12 and step 13, perform step A or step B;

[0042] d1), between step 13 and step 2, perform step A or step B;

[0043] e1), between step 11 and step 12, perform step A or step B;

[0044] f1), while performing step 11 or step 12, perform step A or step B;

[0045] g1), before step one, execute step A or step B;

[0046] Cutting is done first, which makes it convenient to distribute multiple sheets to various devices simultaneously and in parallel, while realizing customization of the sheets.

[0047] or c) including the following steps before steps 1 and 3;

[0048] Steps 1 and 2, simultaneously making indentations for folding and cutting into sheets of prefabricated size 4 on the coil, suitable for mature mass production. Thus, cutting and indentation only need to be aligned at the same time, thereby improving the accuracy of subsequent folding.

[0049] or d) performing step 12 before step 13, making indentations on the coil for folding and forming, and cutting the coil-shaped container pre-finished product state pieces into individual container pre-finished product state pieces after step 13 and before step 2; thereby improving the continuity of the assembly line function, eliminating the intermediate connecting robots and transfer equipment, and achieving continuous operation.

[0050] For plan c) in the first set of parallel plans or plan d) in the first set of parallel plans:

[0051] Before, at the same time as, or after steps one or two, execute step A or step B; thereby facilitating the realization of the assembly line function and making reasonable choices based on different output demands and production requirements.

[0052] or e) after step 1-3 and before step 2, cutting the coiled container pre-finished product state piece into individual container pre-finished product state pieces; eliminating the creasing process and directly cutting, which is suitable for an assembly line with a folding mold at the back and suitable for customized products.

[0053] For solution e) in the first set of parallel solutions,

[0054] Before, at the same time or after the coil-shaped container pre-finished product state is cut into individual container pre-finished product state pieces, step A or step B is performed. It is preferred to complete the above content before filling or sterilization, thereby greatly improving automation, but poor versatility.

[0055] Step 13, fold and seal the pre-finished container part and retain a container filling opening 34 at one end to facilitate filling.

[0056] Specifically, as an improvement, in step one three, first, the pre-finished container state piece is folded and formed according to the indentation, or the indentation and folding are performed simultaneously, or the pre-finished container state piece is folded and formed according to the folding and forming mold, or the pre-finished container state piece is folded and formed according to the folding and forming mold and the indentation; then, the folding machine seals the sealing surface; in step one three or before step one three, the indentation is made;

[0057] The specific description of the folding in step 13 includes step 131 and step 132 that are performed simultaneously or sequentially, and the order of the two can be adjusted.

[0058] Step 131, fold the top; step 132, fold the side; the process is simple.

[0059] Or step 131, fold the side; step 132, fold the top; as a deformation.

[0060] Preferably, a cutting process is provided between step 131 and step 132 to cut the continuous pre-product container parts into individual pre-product container parts, thereby improving the automation efficiency and requiring only one alignment, which can realize the pre-process without positioning.

[0061] The container filling opening 34 is at the bottom or side of the container;

[0062] Step 2: Fill the container with liquid through the container filling opening 34 to achieve liquid filling.

[0063] Step three, fold and seal the container filling opening 34 to achieve the finished product.

[0064] There are two options for improving the drinking port assembly:

[0065] Option 1, before or at the same time as step 2, perform step B, that is, before or at the same time as filling liquid through the container filling opening 34, seal the drinking port assembly at the drinking port position on the container pre-finished state part; that is, the drinking port needs to be prefabricated to facilitate the installation of the bottle cap assembly.

[0066] Option 2, before, at the same time or after step 2, execute step C, that is, before or at the same time of filling liquid through the container filling opening 34, set the drinking port position on the container front state part. The drinking port position may not be opened before filling, but only needs to be set on the drawing or according to the design requirements.

[0067] Regarding the improvement of the drinking port position,

[0068] In solution 1, before step B, step A is performed, that is, setting a container drinking port 33 at the drinking port position on the container front state part; drinking is convenient, but there is a disadvantage of easy leakage, and strict requirements are placed on the sealing of the bottle cap assembly;

[0069] In the second scheme, after step C or simultaneously and before step D, the drinking port is peeled and the film layer 40 is retained or a tear line is set at the drinking port; it realizes secondary sealing, utilizes the original seal, and has no strict requirements on the sealing of the bottle cap assembly. When in use, the film layer 40 or the tear line needs to be broken, and it is necessary to add equipment such as a peeling machine and a tear line machine.

[0070] As a further explanation, in the second solution, after or at the same time as step C, step D is performed to install the drinking port assembly at the drinking port position. Of course, in the second solution, when installing the bottle cap, the film layer 40 at the drinking port position or the tear line is punched to facilitate direct drinking, which is equivalent to the solution of the present invention and is included in the scope of the present invention, because the second solution does not limit the film layer 40 or the tear line at the drinking port position to be retained at the time of purchase. The film layer 40 or the tear line can be equivalent to the cap.

[0071] The drinking opening assembly includes a bottle cap assembly 31 sealed and arranged at the drinking opening 33 of the container;

[0072] As different solutions, the bottle cap assembly 31 includes a separate or integrated drinking mouthpiece 15 and a cap member 19, or the bottle cap assembly 31 includes the drinking mouthpiece 15, or the bottle cap assembly 31 includes a separate drinking mouthpiece 15 and a cap member 19, or the bottle cap assembly 31 includes the cap member 19;

[0073] When the drinking spout 15 and the cap 19 are separate bodies, the drinking spout 15 and the cap 19 are connected before, after, or at the same time as the drinking spout 15 and the drinking opening 33 of the container are sealed.

[0074] As a parallel solution where the bottle cap assembly 31 is arranged on the drinking opening 33 of the container,

[0075] a), first, the mouth composite paper 32 is pre-sealed around the bottle cap assembly 31; then, the bottle cap assembly 31 is sealed with the container drinking opening 33 through the mouth composite paper 32; the same material is used to achieve a replaceable adhesive sealing effect, so that the shape of the mouth composite paper 32 is used to be compatible with the container drinking opening 33, so that container drinking openings 33 of different shapes are compatible with the bottle cap assembly 31, such as round, square, triangular, elliptical and other shapes.

[0076] b) The lower end of the bottle cap assembly 31 is sealed with the drinking opening 33 of the container, and materials are omitted, but the bonding part of the bottle cap assembly 31 needs to be pre-ordered.

[0077] In step 2, first, the pre-finished state of the container after steps 1 and 3 is sterilized; then, the filling liquid is fed into the container through the container filling opening 34 to ensure cleanliness and hygiene.

[0078] After step three, the ears are folded and glued; the folding direction can be adjusted reasonably.

[0079] The sheet material 4 is one, two or more than three sheets. The present invention refers to the base of the container, and various reasonable accessories can be added thereto.

[0080] Generally, relative to the container filling opening 34, the drinking port is located at the top of the container or the drinking port is not located in the same plane as the container filling opening 34;

[0081] And / or the container drinking opening 33 is formed by punching, cutting or folding.

[0082] As a subsidiary, between step 2 and step 3 or in step 3, a shaping process for the sides, bottom and / or top of the container is also performed to prevent the container from having a convex shape at the bottom due to the gravity of the liquid;

[0083] The shaping process is to draw negative pressure or squeeze through a die;

[0084] Before executing step B or step 2, a shaping process is provided to reduce the elastic deformation of the pre-finished container after the parts are folded.

[0085] The liquid food composite paper container finished product production line of this embodiment includes a frame assembly 1, a conveying device 2 arranged on the frame assembly 1 and used to convey the composite paper between stations, a filling machine 5 arranged at the filling station of the frame assembly 1, a bag sealing machine 7 arranged at the bag sealing station after the filling machine 5, and a bag body folding machine 6 arranged at the bag body sealing station before or at the same time as the filling machine 5; the bag body folding machine 6 folds and bonds the container pre-finished state parts and folds and seals the container pre-finished state parts and retains a container filling opening 34 at one end; the present invention realizes the improvement of the shortcomings of the background technology, improves the shortcomings of the roof bag and the injection molding bottle mouth, and the present invention also includes scheme one or scheme two:

[0086] Solution 1: A drinking mouth assembly sealing machine is provided before or integrated with the filling machine 5 at the drinking mouth assembly sealing station;

[0087] Option 2: Before, integrated with or after the filling machine 5, a drinking port position setting station is provided on the container's finished product front state part; after the drinking port position setting station or after the integration, a capping machine for installing a drinking port assembly at the drinking port position is provided.

[0088] The conveying device 2 includes a conveying robot, a linear conveying device, a rotating conveying device, a folding line conveying device, or a curved conveying device;

[0089] A lower push device 3 is provided below each station of the frame assembly 1, which may be a conventional device such as a push rod;

[0090] and / or the filling machine 5 feeds the liquid to be filled through a pipeline, on which a valve and a flow meter are provided;

[0091] And / or in the first solution, a punching machine or a cutting machine is provided before the filling machine 5, before the creasing station or at the same time, between the creasing station and the filling station, or before the filling station, for processing the drinking opening 33 of the container at the drinking opening position on the pre-finished state part of the container;

[0092] In the second solution, before the capping machine, there is a peeling machine for peeling the layer at the drinking opening and retaining the film layer 40, or a tearing dotted line punching machine or a tearing line blind hole punching machine for setting a tear line at the drinking opening;

[0093] As the first set of parallel solutions,

[0094] a) The following modules are included before the bag folding machine 6;

[0095] A creasing station is arranged on the frame assembly 1, and a creasing machine 10 for processing a creasing line 14 on the container pre-finished product state piece is arranged at the creasing station, and / or a cutting station is arranged before or at the same time as the creasing station, or between the creasing station and the filling station, or before or at the same time as the filling station, and a cutting machine 9 for cutting the coil container pre-finished product state piece into sheet container pre-finished product state pieces 4 is arranged at the cutting station;

[0096] or b) including the following modules before the bag folding machine 6: a creasing machine 10 for folding and shaping the coiled material on the frame assembly 1 at the same time and a cutting machine 9 for cutting the sheet material 4 into prefabricated sizes;

[0097] or d) a creasing machine 10 is provided before the bag folding machine 6, and a cutting machine 9 for cutting the pre-finished state of the coiled container into the pre-finished state of individual containers is provided after the bag folding machine 6 and before the filling machine 5;

[0098] or e) a cutting machine 9 is provided after the bag folding machine 6 and before the filling machine 5 to cut the coiled container pre-finished state pieces into individual container pre-finished state pieces;

[0099] In addition, a loading station is provided before the cutting station, and a loading machine 8 for conveying the composite paper roll is provided at the loading station.

[0100] The drinking opening assembly includes a bottle cap assembly 31 sealed and arranged at the container drinking opening container drinking opening 33;

[0101] A drinking mouth assembly sealing robot is provided at the drinking mouth assembly sealing station; the drinking mouth assembly sealing robot installs the drinking mouth assembly at the drinking mouth 33 of the container; a drinking mouth assembly sealing station is provided on the frame assembly 1, and a drinking mouth assembly sealing machine is provided at the drinking mouth assembly sealing station;

[0102] As a parallel solution for setting the bottle cap assembly 31 on the drinking opening 33 of the container, a) includes a manipulator and a sealing machine that pre-seals the mouth composite paper 32 around the drinking opening assembly, and the drinking opening assembly sealing machine seals the mouth composite paper 32 with the drinking opening 33 of the container; b) the drinking opening assembly sealing machine seals the lower end of the drinking opening assembly with the drinking opening 33 of the container; c) the drinking opening assembly sealing machine seals the lower end of the drinking opening assembly with the drinking opening 33 of the container;

[0103] In the second solution, the bottle cap assembly includes a drinking mouthpiece 15 and / or a cap piece 19 .

[0104] The bottle cap assembly includes a drinking mouthpiece 15 and / or a cap member 19;

[0105] When the drinking mouthpiece 15 and the capping member 19 are separated, a bottle mouth feeder 16 pre-stored with the drinking mouthpiece 15 and a capping feeder 20 pre-stored with the capping member 19 are provided at the drinking mouthpiece assembly sealing station or at the filling machine 5 or at a station before the filling machine 5;

[0106] A bottle spout feeding robot 17 is provided on one side of the bottle spout feeder 16 for clamping the drinking mouth piece 15 from the bottle spout feeder 16 to the drinking mouth 33 of the container;

[0107] A capping feeding robot 21 is provided on one side of the capping feeder 20 for taking out the capping member 19 from the capping feeder 20 and installing it on the drinking mouthpiece 15; when installing the capping member 19, the capping auxiliary robot 22 fixes the drinking mouthpiece 15;

[0108] A bottle mouth sealing machine 18 for bonding the cap part 19 to the drinking mouth part 15, a snap-fitting snap-fitting robot or a threaded screwing robot are arranged on one side of the bottle mouth feeding robot 17;

[0109] The bottle mouth feeder 16 and the capping feeder 20 are linear feeding troughs, vibrating feeding devices, robot feeding devices or push rods.

[0110] An auxiliary pressing hand 11 or a negative pressure nozzle for pressing down the composite paper is provided at the punching station, and a positioning baffle plate fixed or driven by a robot is provided at the punching station;

[0111] The punching machine 12 moves downward to punch out a hole 13 on the composite paper as a drinking opening 33 of the container;

[0112] The creasing machine 10 is before or after the bag folding machine 6 or integrated therein;

[0113] When the bag folding machine 6 is equipped with a mold for folding the pre-finished state of the container, the creasing machine 10 is omitted or integrated with the bag folding machine 6;

[0114] The sheet 4 is one, two or three or more sheets;

[0115] The bag folding machine 6 comprises a folding robot and a mold for folding the top of the pre-finished state part of the folded container and a folding robot and a mold for folding the side of the pre-finished state part of the folded container.

[0116] The container filling opening 34 is at the bottom or side of the container;

[0117] And / or relative to the container filling opening 34 , the drinking opening is located at the top of the container or the drinking opening is not located in the same plane as the container filling opening 34 .

[0118] A mold manipulator 24 and a bag folding manipulator 25 are provided at the bag sealing station, and a shaping mold 23 is provided on the mold manipulator 24, which enters from the container filling opening 34 and presses on the sheet 4;

[0119] The sheet 4 is formed and folded under the action of the bag folding robot 25;

[0120] The drinking opening assembly sealing machine seals the folded seal;

[0121] An extrusion robot 26 is provided at the bag sealing station to extrude the pressing marks of the pre-finished state parts of the container;

[0122] A sterilizing station is provided before or at the same time as the filling station of the filling machine 5, and a sterilizer 27 is provided at the sterilizing station;

[0123] A sealing and folding robot 28 is provided at the bag sealing station, and the sealing and folding robot 28 folds the container filling opening 34, and the bag sealing machine 7 seals the container filling opening 34;

[0124] A folding ear 29 is provided after the bag sealing station to fold the ear at the end of the filling opening 34 of the sealed container.

[0125] The container filling opening 34 is at the bottom or side of the container.

[0126] A shaping machine for shaping the sides, bottom and / or top of the container is also provided between the filling machine 5 and the bag sealing machine 7 or after the bag sealing machine 7 or on one side of the bag sealing machine 7;

[0127] The shaping machine is a negative pressure machine or a mold and a manipulator for squeezing the outer wall of the container.

[0128] A shaping machine is arranged before the drinking opening assembly sealing machine or before the filling machine 5 .

[0129] like Figure 1-7 As shown, the finished product process of the composite paper container for liquid food of this embodiment includes the following steps:

[0130] Step 1, first, unroll the coil and load it; then, cut the coil into sheets 4 of prefabricated size; it can be prefabricated separately;

[0131] Step 1 and 2, making indentations on the sheet 4 for folding and forming; it can also be prefabricated in advance;

[0132] As a reasonable arrangement of the parallel scheme, it is preferred to perform punching after indentation;

[0133] Before or at the same time as step 1 or 2, perform step A to flush the drinking opening 33 of the container;

[0134] Before or at the same time as step 1-3, perform step A to flush the drinking opening 33 of the container;

[0135] Between step 12 and step 13, step A is performed to flush the drinking opening 33 of the container;

[0136] Between step 13 and step 2, execute step A;

[0137] In step 1-3, the sheet 4 is folded and sealed according to the indentation, and one end is left with a filling opening and the other end is bonded to the container drinking port 33; thus, the punching process is omitted, and the bottle cap assembly is directly bonded to the container drinking port 33; the folding process can be divided into two stations or one station. When the bottom is used as the filling port, the top can be folded first, and then the side can be folded, and the folded part can be sealed; or the side can be folded first and then the top can be folded. When the side is used as the filling port, the corresponding folding order and sealing order can be selected.

[0138] In step 1-3, the sheet 4 is folded and sealed according to the indentation and a container filling opening 34 is retained at one end. Of course, the folding and forming process and the indentation can be performed simultaneously; thereby avoiding secondary contamination caused by bonding after filling. The sheet 4 can be a prefabricated material that is covered or folded after unfolding and shaping. The sheet 4 can also be a prefabricated material. The shaping process can be reasonably added in the assembly line according to the actual situation.

[0139] Step 2: Fill the container with liquid through the container filling opening 34; the liquid may be common beverages such as milk and juice.

[0140] Step three, folding and bonding the container filling opening 34;

[0141] Before or at the same time as step 2 and after step A, step B is performed, that is, before or at the same time as filling liquid through the container filling opening 34, a drinking port assembly is installed on the composite paper container or sheet 4. The composite paper container can be an unfinished product or a semi-finished product.

[0142] The drinking opening assembly includes a sealing film 30 or a bottle cap assembly 31 bonded to the drinking opening 33 of the container; with the sealing film, a cannula can be configured to pierce the drinking opening through a common part such as a bottle cap.

[0143] The drinking opening assembly may include one of the following steps before or during thermoforming: a) first, a mouth composite paper 32 is pre-sealed around the drinking opening assembly; then, the drinking opening assembly is bonded to the drinking opening 33 of the container through the mouth composite paper 32; b) the lower end of the drinking opening assembly is bonded to the drinking opening 33 of the container;

[0144] When the bottle cap assembly includes a drinking mouth piece 15 and a cap piece, before or simultaneously with step B, first, the drinking mouth piece 15 is bonded to the drinking mouth 33 of the container (it can be bonded to the inner surface, the outer surface or both surfaces of the container), and then the cap piece is installed on the drinking mouth piece 15 or before or simultaneously with step B, first, the cap piece is installed on the drinking mouth piece 15, and then the drinking mouth piece 15 is bonded to the drinking mouth 33 of the container.

[0145] In step 1-3, firstly, the sheet 4 is folded into shape by a robot according to the indentation; then, a folding machine is used to seal the sealing surface; thus, a semi-finished product is formed.

[0146] In step 2, first, the composite paper container is sterilized; then, the liquid is filled into the container through the container filling opening 34, thereby ensuring the cleanliness and hygiene of the container.

[0147] After step 3, fold and seal the ears;

[0148] The sheet material 4 is one, two or more than three sheets, preferably one or two sheets, so as to reduce seams.

[0149] The container filling opening 34 is at the bottom or side of the container, thereby cleverly solving the drawbacks of the gable top bag.

[0150] Between step 2 and step 3 or in step 3, the side, bottom and / or top of the container are shaped to prevent the container from bulging at the bottom due to the gravity of the liquid;

[0151] The shaping process is conventional technology such as vacuum pumping or extrusion through a die.

[0152] Before executing step B or step 2, a shaping process is provided to reduce the elastic deformation of the composite paper of the container after folding. It can be conventional means such as extrusion and heat setting.

[0153] In addition, if Figure 1-7 The finished product assembly line of the composite paper container for liquid food of this embodiment can utilize the general equipment or devices of existing roof bags, pillow bags and other common liquid food containers, and can also be reasonably improved to achieve better assembly line coordination, which includes a frame assembly 1, a conveying device 2 arranged on the frame assembly 1 and used to convey the composite paper between stations, a filling machine 5 arranged on the filling station of the frame assembly 1, a bag sealing machine 7 arranged at the bag sealing station after the filling machine 5, and a bag folding machine 6 arranged at the bag sealing station before or at the same time as the filling machine 5; the various equipment involved in the present invention can be designed independently of each other, or can be integrated into one, and the machines at each station as one or several station combination mechanisms are all within the scope of protection.

[0154] A drinking opening assembly sealing machine is provided before or simultaneously with the filling machine 5 and is located at the drinking opening assembly sealing station.

[0155] The conveying device 2 includes a conveying robot, a linear conveying device, a rotating conveying device, a folding line conveying device, or a curved conveying device;

[0156] A lower lift device 3 is provided below each station of the frame assembly 1;

[0157] The filling machine 5 delivers the liquid to be filled through a pipeline, and valves and flow meters are arranged on the pipeline to achieve accurate measurement.

[0158] An indentation station is provided on the frame assembly 1 , and an indentation machine 10 for processing an indentation line 14 on the sheet 4 is provided at the indentation station;

[0159] A cutting station is provided before or at the same time as the creasing station, and a cutting machine 9 for cutting the composite paper into sheets 4 is provided at the cutting station;

[0160] A feeding station is provided at the cutting station, and a feeding machine 8 for conveying the composite paper roll is provided at the feeding station;

[0161] A punching station is provided before or at the same time as the creasing station, or between the creasing station and the filling station, or before or at the same time as the filling station, and a punching machine 12 is provided at the punching station.

[0162] An auxiliary pressing hand 11 or a negative pressure nozzle for pressing down the composite paper is provided at the punching station, and a positioning baffle plate fixed or driven by a robot is provided at the punching station;

[0163] The punching machine 12 moves downward to punch out a hole 13 on the composite paper as a drinking opening 33 of the container.

[0164] The drinking opening assembly includes a sealing film 30 or a bottle cap assembly 31 bonded to the drinking opening 33 of the container;

[0165] A drinking mouth assembly sealing robot is provided at the drinking mouth assembly sealing station; the drinking mouth assembly sealing robot installs the drinking mouth assembly at the drinking mouth 33 of the container;

[0166] As a parallel solution, a) a mouth composite paper 32 is pre-sealed around the drinking mouth assembly, and at the drinking mouth assembly sealing station, the drinking mouth assembly sealing machine bonds the mouth composite paper 32 to the drinking mouth 33 of the container; b) at the drinking mouth assembly sealing station, the drinking mouth assembly sealing machine bonds the lower end of the drinking mouth assembly to the drinking mouth 33 of the container.

[0167] When the bottle cap assembly includes a drinking mouthpiece 15 and a cap 19,

[0168] A bottle mouth feeder 16 pre-stored with a drinking mouth piece 15 and a cap feeder 20 pre-stored with a cap piece 19 are arranged on one side of the drinking mouth assembly sealing station;

[0169] A bottle spout feeding robot 17 is provided on one side of the bottle spout feeder 16 for clamping the drinking mouth piece 15 from the bottle spout feeder 16 to the drinking mouth 33 of the container;

[0170] A capping loading robot 21 is provided on one side of the capping feeder 20 for taking out the cap piece 19 from the capping feeder 20 and installing it on the drinking mouth piece 15; when installing the cap piece 19, the capping auxiliary robot 22 presses the container or the drinking mouth piece 15, thereby directly or indirectly fixing the drinking mouth piece 15.

[0171] A bottle mouth sealing machine 18 for bonding the cap part 19 to the drinking mouth part 15, a snap-fitting snap-fitting robot or a threaded screwing robot are arranged on one side of the bottle mouth feeding robot 17;

[0172] The bottle mouth feeder 16 and the capping feeder 20 are linear feeding troughs, vibrating feeding devices, robot feeding devices or push rods.

[0173] A mold manipulator 24 and a bag folding manipulator 25 are provided at the bag sealing station, and a shaping mold 23 is provided on the mold manipulator 24, which enters from the extrusion manipulator 26 of the composite paper container and presses on the sheet 4;

[0174] The sheet 4 is formed and folded under the action of the bag folding robot 25;

[0175] The drinking opening assembly sealing machine performs heat sealing bonding on the folded sealing part;

[0176] An extrusion robot 26 is provided at the bag sealing station to extrude and shape the pressing marks of the composite paper container;

[0177] A sterilizing station is provided before or at the same time as the filling station of the filling machine 5, and a sterilizer 27 is provided at the sterilizing station;

[0178] A sealing and folding robot 28 is provided at the bag sealing station, which folds the filling opening 34 of the container, and the bag sealing machine 7 performs heat sealing on the seal; the container can be boxed, bagged, paper cup or other existing technologies.

[0179] A folding ear 29 is provided after the bag sealing station to fold the ear at the filling opening 34 of the container.

[0180] A shaping machine for shaping the sides, bottom and / or top of the container is also provided between the filling machine 5 and the bag sealing machine 7 or after the bag sealing machine 7 or on one side of the bag sealing machine 7 .

[0181] The forming machine is a negative pressure machine or a mold and a manipulator for extruding the outer wall of the container.

[0182] A shaping machine is arranged before the drinking opening assembly sealing machine or before the filling machine 5; the shaping machine may be an extruder and / or a heat setting machine.

[0183] When the present invention is used, the frame assembly 1 is a general term, the conveying device 2 realizes the general term for the connection between various processes, the lower top device 3 plays a role in bottom support, the filling machine 5, the bag folding machine 6, the bag sealing machine 7, the feeding machine 8, the cutting machine 9, the creasing machine 10, the auxiliary pressing hand 11, the punching machine 12, the bottle mouth feeding machine 16, the bottle mouth feeding manipulator 17, the bottle mouth sealing machine 18, the capping part 19, the capping feeding machine 20, the capping feeding manipulator 21, the capping auxiliary manipulator 22, the shaping mold 23, the mold manipulator 24, the bag body folding machine Manipulator 25, extrusion manipulator 26, sterilizer 27, sealing and folding manipulator 28, folding earphone 29 can all adopt general equipment, the manipulator degree of freedom can be set as needed, the shape of the claw can be set as needed, and the extrusion and positioning mold can be set; the orifice 13 and the indentation line 14 are prefabricated according to the basic drawings and customer requirements. The present invention streamlines the operation of the finished container, reduces the disinfection process, avoids the influence of secondary disinfection on the taste of the beverage, avoids the contact between the glue and the liquid, is clean and hygienic, reduces pollution, improves efficiency and reduces costs. The present invention reduces suture lines, reduces the scrap rate, reduces the use of sealing strips, reduces the process environment, reduces the injection molding cost, and saves energy and reduces consumption.

[0184] The present invention is fully described for a clearer disclosure, and the prior art will not be listed one by one.

[0185] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents; it is obvious for those skilled in the art to combine multiple technical solutions of the present invention. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A finished product process of a composite paper container for liquid food, comprising the following steps; Step 13, folding and sealing the pre-finished container part and leaving a container filling opening (34); Step 2, filling the container with liquid through the container filling opening (34); Step three, folding and sealing the container filling opening (34); Features: Also included is solution 1 or solution 2 regarding the drinking port assembly: Solution 1: before or at the same time as step 2, step B is performed, i.e., before or at the same time as filling the liquid through the container filling opening (34), the drinking opening assembly is sealed at the drinking opening position on the container pre-finished state part; Solution 2: before, at the same time or after step 2, perform step C, i.e., before or at the same time as filling the liquid through the container filling opening (34), set the drinking opening position on the container pre-finished state part; Regarding the drinking port location, In solution 1, before step B, step A is performed, i.e., setting a container drinking opening (33) at the drinking opening position on the container before the finished product; In the second solution, after step C or simultaneously and before step D, the drinking opening is peeled off and the film layer (40) is retained or a tear line is set at the drinking opening; And / or in solution 2, after or at the same time as step C, perform step D to install the drinking port assembly at the drinking port position.

2. The process for producing a liquid food composite paper container according to claim 1, characterized in that : As the first set of parallel solutions about cutting steps, a) before step 1 and step 3, including the following steps; Step 11, cutting the coil into sheets of prefabricated size (4); Step 1 and 2, making indentations on the sheet (4) for folding and forming; or b) including the following steps before step 1 or 3; Step one, making indentations on the coil for folding into shape; Step 1 and 2, cutting the coil into sheets of prefabricated size (4); or c) including the following steps before steps 1 and 3; Steps 1 and 2, simultaneously making indentations for folding and cutting into sheets of prefabricated size on the coil (4); or d) performing step 12 before step 13, making indentations on the coil for folding and forming, and cutting the coil-shaped container pre-finished product state piece into individual container pre-finished product state pieces after step 13 and before step 2; or e) after step 1-3 and before step 2, cutting the coiled container pre-finished product state piece into individual container pre-finished product state pieces.

3. The process for producing a liquid food composite paper container according to claim 1, characterized in that : The drinking opening assembly includes a bottle cap assembly (31) sealed and arranged on the drinking opening (33) of the container; As a parallel solution for arranging a bottle cap assembly (31) on a container drinking opening (33), a) first, a mouth composite paper (32) is pre-sealed around the bottle cap assembly (31); then, the bottle cap assembly (31) is sealed with the container drinking opening (33) via the mouth composite paper (32); and b) the lower end of the bottle cap assembly (31) is sealed with the container drinking opening (33).

4. The process for producing a liquid food composite paper container according to claim 1, characterized in that : Or, in step one-three, first, the pre-finished container is folded and formed according to the indentation, or the indentation and folding are performed simultaneously, or the pre-finished container is folded and formed according to the folding and forming mold, or the pre-finished container is folded and formed according to the folding and forming mold and the indentation; then, the folding machine seals the sealing surface; in step one-three or before step one-three, the indentation is made; Or, in step 2, first, the pre-finished state of the container after step 13 is sterilized; then, the filling liquid is fed into the container through the container filling opening (34); Or, after step 3, folding and bonding the folded ears; Alternatively, the sheet (4) is one, two, or three or more sheets.

5. The process for producing a liquid food composite paper container according to claim 1, characterized in that : The folding into shape in step 13 includes steps 131 and 132 performed simultaneously or sequentially. Step 131, fold the top; Step 132, fold the side part; or Step 131, fold the side portion; Step 132, fold the top; And / or, a cutting process is provided between step 131 and step 132 to cut the continuous container pre-finished product state pieces into individual container pre-finished product state pieces.

6. The process for producing a liquid food composite paper container according to claim 1, characterized in that : The container filling opening (34) is at the bottom or side of the container; and / or relative to the container filling opening (34), the drinking opening is located at the top of the container or the drinking opening is not located in the same plane as the container filling opening (34); and / or the drinking opening (33) of the container is formed by punching, cutting or folding; and / or between step 2 and step 3 or in step 3, further performing a shaping process on the side, bottom and / or top of the container to prevent the container from having a convex shape at the bottom due to the gravity of the liquid; And / or the shaping process is vacuum extraction or extrusion through a die; And / or a shaping process is provided before executing step B or step 2 to reduce the elastic deformation of the pre-finished container after the parts are folded.

7. The process for producing a liquid food composite paper container according to claim 1, characterized in that : With the aid of an assembly line, it includes a frame assembly (1), a conveying device (2) arranged on the frame assembly (1) and used to convey the composite paper between workstations, a filling machine (5) arranged at the filling station of the frame assembly (1), a bag sealing machine (7) arranged at the bag sealing station after the filling machine (5), and a bag folding machine (6) arranged at the bag sealing station before or at the same time as the filling machine (5); the bag folding machine (6) folds and bonds the container pre-finished state parts, folds and seals the container pre-finished state parts, and retains a container filling opening (34) at one end; and also includes scheme one or scheme two: Solution 1: A drinking mouth component sealing machine is provided before or integrated with the filling machine (5) and is located at the drinking mouth component sealing station; Solution 2: Before, integrated with, or after the filling machine (5), a drinking port position setting station is provided on the container pre-finished product state part; after or after the drinking port position setting station, a capping machine for installing a drinking port assembly at the drinking port position is provided.

8. The process for producing a liquid food composite paper container according to claim 2, characterized in that : For plan a) in the first set of parallel plans or plan b) in the first set of parallel plans: The following parallel scheme is also performed: a1), before or at the same time as step one or step two, step A or step B is performed; b1), before or at the same time as step 1 or step 3, perform step A or step B; c1), between step 12 and step 13, perform step A or step B; d1), between step 13 and step 2, perform step A or step B; e1), between step 11 and step 12, perform step A or step B; f1), while performing step 11 or step 12, perform step A or step B; g1), before step one, execute step A or step B; For plan c) in the first set of parallel plans or plan d) in the first set of parallel plans: Before, at the same time as, or after steps 1 and 2, perform step A or step B; For solution e) in the first set of parallel solutions, Step A or step B is performed before, simultaneously with, or after the coil-shaped container pre-finished product state piece is cut into individual container pre-finished product state pieces.

9. The process for producing a liquid food composite paper container according to claim 1, characterized in that : the bottle cap assembly (31) comprises a separate or integrated drinking mouthpiece (15) and a cap member (19), or the bottle cap assembly (31) comprises a drinking mouthpiece (15), or the bottle cap assembly (31) comprises a separate drinking mouthpiece (15) and a cap member (19), or the bottle cap assembly (31) comprises a cap member (19); When the drinking mouth piece (15) and the cap piece (19) are separated, the drinking mouth piece (15) and the cap piece (19) are connected before, after, or at the same time as the drinking mouth piece (15) and the container drinking mouth (33) are sealed.

10. The process for producing a composite paper container for liquid food according to claim 7, characterized in that A liquid food composite paper container finished product production line is provided, comprising a frame assembly (1), a conveying device (2) arranged on the frame assembly (1) and used to convey the composite paper between workstations, a filling machine (5) arranged at the filling station of the frame assembly (1), a bag sealing machine (7) arranged at the bag sealing station after the filling machine (5), and a bag body folding machine (6) arranged at the bag body sealing station before or at the same time as the filling machine (5); the bag body folding machine (6) folds and bonds the container pre-finished product state parts, folds and seals the container pre-finished product state parts, and retains a container filling opening (34) at one end.

11. The process for producing a composite paper container for liquid food according to claim 10, characterized in that : The conveying device (2) includes a conveying robot, a linear conveying device, a rotating conveying device, a folding line conveying device, or a curved conveying device; and / or a lower lifting device (3) is provided below each workstation of the frame assembly (1); and / or the filling machine (5) feeds the liquid to be filled through a pipeline, on which a valve and a flow meter are provided; And / or in the first solution, a punching machine or a cutting machine is provided before the filling machine (5), before the creasing station or at the same time, between the creasing station and the filling station, or before the filling station, for processing the drinking opening (33) of the container at the drinking opening position on the pre-finished state part of the container; In the second solution, before the capping machine, there is a peeling machine for peeling the layer at the drinking opening and retaining the film layer (40), or a tearing dotted line punching machine or a tearing line blind hole punching machine for setting a tear line at the drinking opening; As the first set of parallel solutions, a) before the bag folding machine (6) comprises the following modules; A creasing station is arranged on the frame assembly (1), and a creasing machine (10) is arranged at the creasing station for processing a creasing line (14) on the container pre-finished product part, and / or a cutting station is arranged before or at the same time as the creasing station, or between the creasing station and the filling station, or before or at the same time as the filling station, and a cutting machine (9) is arranged at the cutting station for cutting the coil container pre-finished product part into sheet (4) container pre-finished product parts; or b) comprising the following modules before the bag folding machine (6); a creasing machine (10) for folding and shaping the coiled material on the frame assembly (1) and a cutting machine (9) for cutting the sheet material (4) into prefabricated sizes; or d) a creasing machine (10) is provided before the bag folding machine (6), and a cutting machine (9) for cutting the pre-finished container state piece in the form of a coil into pre-finished container state pieces of individual containers is provided after the bag folding machine (6) and before the filling machine (5); or e) a cutting machine (9) for cutting the pre-finished container parts in the form of a coil into pre-finished container parts in individual forms, is provided after the bag folding machine (6) and before the filling machine (5); In addition, a loading station is provided before the cutting station, and a loading machine (8) for conveying the composite paper roll is provided at the loading station; The drinking opening assembly comprises a bottle cap assembly (31) which is sealed and arranged on the drinking opening of the container and the drinking opening of the container (33); A drinking mouth component sealing robot is provided at the drinking mouth component sealing station; the drinking mouth component sealing robot installs the drinking mouth component at the drinking mouth (33) of the container; a drinking mouth component sealing station is provided on the frame assembly (1), and a drinking mouth component sealing machine is provided at the drinking mouth component sealing station; As a parallel solution for arranging a bottle cap assembly (31) on a container drinking opening (33), a) a robot arm and a sealing machine are provided for pre-sealing a mouth composite paper (32) around the drinking opening assembly, and the drinking opening assembly sealing machine seals the mouth composite paper (32) with the container drinking opening (33); b) the drinking opening assembly sealing machine seals the lower end of the drinking opening assembly with the container drinking opening (33); c) the drinking opening assembly sealing machine seals the lower end of the drinking opening assembly with the container drinking opening (33); In the second solution, the bottle cap assembly includes a drinking mouthpiece (15) and / or a cap piece (19); The bottle cap assembly comprises a drinking mouth piece (15) and / or a cap piece (19); When the drinking mouth piece (15) and the cap piece (19) are separated, a bottle mouth feeder (16) pre-stored with the drinking mouth piece (15) and a cap feeder (20) pre-stored with the cap piece (19) are provided at a drinking mouth assembly sealing station or at a filling machine (5) or at a station before the filling machine (5); A bottle spout feeding robot (17) for clamping the drinking mouth piece (15) from the bottle spout feeding machine (16) to the drinking mouth (33) of the container is provided on one side of the bottle spout feeding machine (16); A capping feeding robot (21) is provided on one side of the capping feeder (20) for taking out a capping member (19) from the capping feeder (20) and installing it on the drinking mouth member (15); when installing the capping member (19), the capping auxiliary robot (22) fixes the drinking mouth member (15); A bottle mouth sealing machine (18) for bonding the cap member (19) to the drinking mouth member (15), a snap-fitting snap-fitting robot or a threaded screwing robot are provided on one side of the bottle mouth feeding robot (17); The bottle mouth feeder (16) and the capping feeder (20) are linear feed troughs, vibrating feeders, manipulator feeders or push rods; An auxiliary pressing hand (11) or a negative pressure nozzle for pressing down the composite paper is provided at the punching station, and a positioning baffle which is fixed or driven by a robot is provided at the punching station; The punching machine (12) moves downward to punch out a hole (13) on the composite paper as a drinking opening (33) of the container; The creasing machine (10) is placed before or after the bag folding machine (6) or integrated therein; When the bag folding machine (6) is equipped with a mold for folding the pre-finished state of the container, the creasing machine (10) is omitted or the creasing machine (10) is integrated on the bag folding machine (6); The sheet (4) is one, two, or three or more sheets; The bag body folding machine (6) comprises a folding robot and a mold for folding the top of the pre-finished state part of the folded container, and a folding robot and a mold for folding the side of the pre-finished state part of the folded container; The container filling opening (34) is at the bottom or side of the container; A mold robot (24) and a bag folding robot (25) are provided at the bag sealing station, and a shaping mold (23) is provided on the mold robot (24) for entering from the container filling opening (34) and pressing onto the sheet (4); The sheet material (4) is formed and folded under the action of the bag folding robot (25); The drinking opening assembly sealing machine seals the folded seal; An extrusion robot (26) is provided at the bag body sealing station to extrude the pressing marks of the front state parts of the container; A sterilizing station is provided before or at the same time as the filling station of the filling machine (5), and a sterilizer (27) is provided at the sterilizing station; A sealing and folding robot (28) is provided at the bag sealing station, the sealing and folding robot (28) folds the container filling opening (34), and the bag sealing machine (7) seals the container filling opening (34); A folding ear (29) is provided after the bag sealing station to fold the ear at the end of the filling opening (34) of the sealed container; The container filling opening (34) is at the bottom or side of the container; A shaping machine for shaping the sides, bottom and / or top of the container is also provided between the filling machine (5) and the bag sealing machine (7) or after the bag sealing machine (7) or on one side of the bag sealing machine (7); The shaping machine is a negative pressure machine or a mold and a manipulator for squeezing the outer wall of the container; A shaping machine is provided before the drinking opening assembly sealing machine or before the filling machine (5).

Images