CN116946461A - Container packaging technology and packaging equipment for double materials - Google Patents
Container packaging technology and packaging equipment for double materials Download PDFInfo
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- CN116946461A CN116946461A CN202311219988.6A CN202311219988A CN116946461A CN 116946461 A CN116946461 A CN 116946461A CN 202311219988 A CN202311219988 A CN 202311219988A CN 116946461 A CN116946461 A CN 116946461A
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- packaging
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- 239000000463 material Substances 0.000 title claims abstract description 213
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 83
- 238000012536 packaging technology Methods 0.000 title description 4
- 238000007789 sealing Methods 0.000 claims abstract description 150
- 238000012858 packaging process Methods 0.000 claims abstract description 21
- 239000010410 layer Substances 0.000 claims description 39
- 239000012793 heat-sealing layer Substances 0.000 claims description 32
- 230000007246 mechanism Effects 0.000 claims description 28
- 239000004033 plastic Substances 0.000 claims description 13
- 230000009977 dual effect Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000003856 thermoforming Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 6
- 239000004831 Hot glue Substances 0.000 claims description 3
- 239000002313 adhesive film Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 28
- 239000000047 product Substances 0.000 abstract description 15
- 239000011265 semifinished product Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 239000011343 solid material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000012785 packaging film Substances 0.000 description 2
- 229920006280 packaging film Polymers 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000009516 primary packaging Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009517 secondary packaging Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000013618 yogurt Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B29/00—Packaging of materials presenting special problems
- B65B29/10—Packaging two or more different substances isolated from one another in the package but capable of being mixed without opening the package, e.g. forming packages containing a resin and hardener isolated by a frangible partition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/50—Enclosing articles, or quantities of material, by disposing contents between two sheets, e.g. pocketed sheets, and securing their opposed free margins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
- B65B47/02—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved with means for heating the material prior to forming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
Abstract
The invention relates to a packaging process and packaging equipment for double materials, which are used for forming a container, filling a first material, heat sealing a first packaging layer, filling a second material and heat sealing a last second packaging layer, wherein the whole packaging process follows the production process of a finished product from bottom to top and from inside to outside, the operation of a semi-finished product is not needed in the middle, the production process is reduced, and the production time of the final finished product is greatly reduced; meanwhile, each device in each step can be assembled according to the production process of the finished product from bottom to top and from inside to outside, so that the occupied space of the production device can be reduced, and the whole device has better consistency.
Description
Technical Field
The invention relates to the technical field of packaging equipment, in particular to a container packaging process and packaging equipment for double materials.
Background
When the plastic container is packaged, the main process is that firstly, materials are filled into the container, then, the packaging material is covered on the container opening, and then, the film material is heat-sealed on the container opening through heat-sealing equipment, so that the container is packaged. Currently, some containers need to hold a variety of materials, in particular: for a plurality of different types of solid materials, the solid materials can be mixed or packaged into a container; for many different types of liquid materials, either solid materials or liquid materials, it is common to package each and then load the materials into a container. Such packaging means makes the whole process of producing the package more steps and time consuming.
In order to save packaging steps and reduce packaging time consumption, there is a packaging mode for packaging two materials (such as yogurt with a spoon or jelly with a charging bag, bean jelly and the like), which comprises the steps of firstly filling a first material into a container, packaging the first material once, then placing a second material on the surface of a packaging layer, and then packaging the second material secondarily. Because the second material is directly placed on the surface of the packaging layer after primary packaging, when secondary packaging is carried out, the second material is directly covered by adopting a packaging cover and other modes. The packaging mode can enable the overall packaging height of the packaged container to be higher, if the packaging is directly covered by the film material, the appearance of the second material can be directly highlighted on the upper part of the overall packaging, and the appearance of the overall packaging is affected; if the cover is used to cover the second material, the whole packaging effect is ensured, but a series of equipment such as feeding and mounting of the cover is needed, the space occupied by the equipment is increased, and the procedure of covering the package is also increased.
Disclosure of Invention
The invention aims to solve the problem of providing a container packaging process and packaging equipment for double materials, which can complete packaging of two materials at one time, reduce the occupied space of the equipment and save the production procedures and the production time. The technical scheme adopted is as follows:
a container packaging process for dual materials, comprising the steps of:
(1) Thermoforming the sheet into a container having a plurality of receptacles for said twin mass, designated as formed sheet;
(2) Filling each container with a first material, wherein the height of the first material is lower than the depth of the container;
(3) Covering the formed sheet with a first film material, performing first heat sealing on each container, forming a first heat sealing layer on the formed sheet, and forming a concave part which is concave downwards in the middle of each container by the first heat sealing layer; a lower accommodating cavity is formed between the concave part and the bottom of the corresponding container, so that the first material is encapsulated in the lower accommodating cavity;
(4) Filling the concave parts with a second material, wherein the height of the second material is lower than the opening edge of the container;
(5) Covering the first heat sealing layer with a second film material and performing second heat sealing to form a second heat sealing layer, wherein the second heat sealing layer and the first heat sealing layer are in heat sealing combination to horizontally cover all the concave parts at the opening edge of all the containers; an upper accommodating cavity is formed between the second heat sealing layer and each concave part, so that the second material is encapsulated in the upper accommodating cavity;
(6) And cutting the formed sheet subjected to the secondary heat sealing according to each container to form a single packaging container filled with two materials, and thus completing the packaging operation of filling the two materials into the containers.
In the preferred embodiment of the present invention, in the step (3), the first heat sealing is performed by using an upper heat sealing die having a bump.
As a further preferable scheme of the invention, the step (1) uses a sheet unreeling device to unreel the sheet; and (3) unreeling the first film material by adopting a first unreeling device, wherein the first heat seal is carried out by adopting a mode of driving a lower heat seal die to move upwards to carry out die assembly, the lower heat seal die jacks up the formed sheet and the first film material, the formed sheet and the first film material are tensioned at the edge of the lower heat seal die and cling to the convex block upwards, and after die assembly, the first heat seal is completed and the concave part is formed.
In a further preferred embodiment of the present invention, in the step (3), a pre-pressing roller is used to lay the first film material on the formed sheet material and limit the upward movement amplitude of the formed sheet material and the first film material.
As a preferred embodiment of the present invention, the formed sheet material having a plurality of containers for holding the dual materials formed in the step (1) is transported from the step (2) to the step (6) by the same traction winding device. Because the containers are formed by direct thermoforming from the sheets, the same traction winding device can be adopted in all the steps (2) to (6) to draw the formed sheets, and the formed sheets with a plurality of containers are directly driven to pass through the devices until the slitting is completed in the step (6), and the waste is wound.
In the step (1), the sheet unreeling device and the thermoforming device unreels and thermoforming the sheet to form a formed sheet having a plurality of containers for holding the dual materials, the sheet is generally made of soft plastic, the sheet unreeling device is generally made of sheet unreeling equipment in the prior art, and the thermoforming device is generally made of a thermoforming machine in the prior art.
In the step (2) and the step (4), manual or automatic filling equipment can be adopted for filling, and different filling equipment can be selected according to the specific states of the first material and the second material.
In the above steps (3) and (5), the first heat sealing device and the second heat sealing device generally include an upper mold, a lower mold, and a driving mechanism for driving the upper mold and the lower mold to be closed; the shape of the lower die matches the shape of the formed sheet.
The whole packaging process finally and directly forms a packaging container for containing two materials, wherein a concave part which is concave downwards is formed in the middle of a first packaging layer of the packaging container, namely, the containing space of the container is divided by the first packaging layer, a lower containing cavity is formed between the concave part and the bottom of the container, and an upper containing cavity is formed between a second packaging layer and the concave part; the first material is in the lower receiving chamber and the second material is in the upper receiving chamber. Finally, the formed packaging container filled with the two materials is directly unreeled and covered on the first packaging layer after the second material is filled into the upper accommodating cavity, and the second packaging layer horizontally covers the concave part, so that the second material in the upper accommodating cavity cannot be highlighted on the upper part of the whole package, and the whole packaging effect is ensured.
For the whole packaging container filled with two materials, from the formation of the container, the filling of the first material, the heat sealing of the first packaging layer, the filling of the second material and the heat sealing of the last second packaging layer, the whole packaging process follows the production process of a finished product from bottom to top and from inside to outside, the operation of a semi-finished product is not needed in the middle, the production procedures are reduced, and the production time of the final finished product is greatly reduced; meanwhile, each device in each step can be assembled according to the production process of the finished product from bottom to top and from inside to outside, so that the occupied space of the production device can be reduced, and the whole device has better consistency.
In order to ensure the heat sealing effect of the first film material, ensure that the first film material can automatically obtain a balance point between the deformation in the die and the supplement outside the die, as a further preferable scheme of the invention, the first film material comprises a hot melt adhesive layer/film layer, an aluminum foil layer and a film layer which are sequentially compounded from bottom to top. And the second film material is made of a common packaging film material.
Correspondingly, for the container packaging process for the double materials, the invention also provides container packaging equipment for the double materials, and the adopted technical scheme is as follows:
packaging equipment of two material containers, including the frame, its characterized in that: the device also comprises a sheet unreeling device, a heating forming device, a first unreeling device for unreeling the first film material, a first heat sealing device, a second unreeling device for unreeling the second film material, a second heat sealing device, a slitting device and a traction reeling device; the sheet unreeling device, the heating forming device, the first heat sealing device, the second heat sealing device, the slitting device and the traction reeling device are arranged on the frame according to the traction conveying direction of the sheet, the first unreeling device is arranged on the frame and is positioned at one side of the first heat sealing device, and the second unreeling device is arranged on the frame and is positioned at one side of the second heat sealing device; a first filling station for filling the first material in the step (2) is arranged between the heating forming device and the first heat sealing device, and a second filling station for filling the second material in the step (4) is arranged between the first heat sealing device and the second unreeling device; the first heat sealing device is used for heat sealing the first film material on the formed sheet material to form a first heat sealing layer in the step (3), and the first heat sealing layer forms a concave part which is concave downwards in the middle part of each container; and (5) the second heat sealing device is used for heat sealing the second film material on the first heat sealing layer to form a second heat sealing layer in the step (5).
The first unreeling device and the second unreeling device generally adopt the existing film unreeling equipment, the first unreeling device unreels, pulls and finally covers the first film on the formed sheet with a plurality of containers, and the second unreeling device unreels, pulls and finally covers the second film on the first packaging layer; the first unreeling device is correspondingly arranged on one side of the first heat sealing device, and the second unreeling device is correspondingly arranged on one side of the second heat sealing device.
In order to ensure that the first film material and the second film material can be smoothly covered on the container, the rising range of the first film material and the second film material is limited to a certain extent, and as a preferable scheme of the invention, the first heat sealing device and the second heat sealing device are respectively provided with a pre-pressing roller at the front along the conveying direction of the container.
As a preferable mode of the invention, the first heat sealing device comprises an upper die table, an upper sealing die, an upper die driving mechanism, a lower die table, a lower sealing die and a lower die driving mechanism; the upper die driving mechanism and the lower die driving mechanism are arranged on the frame, the upper die table is arranged on the power output end of the upper die driving mechanism, the lower die table is arranged on the power output end of the lower die driving mechanism, the upper sealing die is arranged on the upper die table, the lower sealing die is arranged on the lower die table, and the upper sealing die and the lower sealing die are opposite up and down; the upper sealing die is provided with a plurality of protruding blocks protruding downwards, and the lower sealing die is provided with a plurality of concave cavities capable of accommodating the containers.
Before the die assembly and heat sealing are carried out, the upper die driving mechanism drives the upper sealing die to descend for a certain distance, and then the lower die driving mechanism drives the lower sealing die to ascend and die assembly is carried out on the upper sealing die. When the lower sealing die ascends, the first film covered on the lower sealing die is driven to ascend, when the lower sealing die and the upper sealing die are clamped, the part of the first film in the die is contacted with the convex block, and when the clamping is completed, the first film is recessed into the container under the limit of the convex block to form the concave part.
In the whole die assembly process, the first film material is limited by the dragging and prepressing rollers which are used for carrying out the first heat sealing at the back, and the formed sheet material and the first film material are blocked at the front side and the back side of the first heat sealing device and cannot move upwards to a large extent, so that the front side and the back side of the lower die are tensioned under the lifting of the lower die, and the tensioning is not fixed, so that the first film material has a certain degree of freedom; when the die is assembled, the part of the first film material in the die is subjected to the action of the lug to generate a certain degree of deformation, so that the first film material is recessed towards the inside of the container, the air pressure in the container is increased to react with the first film material, and the first film material is tightly attached to the lug, so that the first film material between the lugs is mutually tensioned, the part of the first film material outside the die is pulled and moved to a certain extent, and the stretching deformation of the first film material in the die and the supplement of the first film material outside the die automatically acquire a balance point, so that the first film material is prevented from being excessively stretched and damaged.
For the second heat sealing device, the second film material is horizontally covered and finally directly heat-sealed on the first heat sealing layer, so that the second heat sealing device can directly adopt the existing heat sealing equipment.
The upper die driving mechanism and the lower die driving mechanism can adopt the conventional driving mode at present: in a specific scheme, the upper die driving mechanism can simultaneously drive the upper die table to move downwards by adopting two air cylinders which are arranged on the frame side by side and the cylinder body is vertically downward; in a specific scheme, the lower die driving mechanism can adopt a motor driving mode and comprises a servo motor, a transmission cam, a transmission wheel and a support column, wherein the transmission cam is in transmission connection with an output shaft of the servo motor, the transmission wheel is in transmission fit with the transmission cam, the lower end of the support column is hinged with the transmission wheel, and the upper end of the support column is fixedly connected with the lower die table.
As a further preferable scheme of the invention, the upper sealing die comprises a die holder and a metal heat sealing die, and the lug is a plastic lug; a plurality of mounting holes are formed in the middle of the metal heat-sealing die, a plurality of plastic convex blocks are located in the mounting holes in a one-to-one correspondence mode and are locked on the die holder, and gaps exist between the plastic convex blocks and the metal heat-sealing die. Because the first membrane material needs to be in close contact with the lug, in order to avoid overheating of the lug and breaking of the first membrane material, the lug adopts plastic to increase friction force, so that the first membrane material is fixed at a fixed point once being clung to the lug, and the first membrane material between the lugs is prevented from being pulled mutually to move.
As a further preferable mode of the invention, the cross section of the lug is round, and the surface of the lug is provided with annular stripes. The lug can adopt the hemisphere or have the disk shape of certain thickness, and when the lug contacted with first membrane material, its centre of a circle was corresponding with the container center, when making first membrane material receive the lug effect to the container indent, the ascending atress of circumference was more even, and the tensioning dynamics of first membrane material all directions between the container is unanimous. In order to improve the friction force between the bump and the first film material, annular stripes can be arranged on the surface of the bump.
Compared with the prior art, the invention has the following advantages:
the packaging technology and the packaging equipment for the double materials are used for directly forming the packaging container for containing the two materials finally, and the whole packaging process follows the production process of a finished product from bottom to top and from inside to outside, the operation of semi-finished products is not needed in the middle, the production procedures are reduced, and the production time of the final finished product is greatly reduced; meanwhile, each device in each step can be assembled according to the production process of the finished product from bottom to top and from inside to outside, so that the occupied space of the production device can be reduced, and the whole device has better consistency.
The formed packaging container divides the containing space of the container through the first packaging layer, a lower containing cavity is formed between the concave part and the bottom of the container, and an upper containing cavity is formed between the second packaging layer and the concave part; the first material is in the lower receiving chamber and the second material is in the upper receiving chamber. Finally, the formed packaging container filled with the two materials is directly unreeled and covered on the first packaging layer after the second material is filled into the upper accommodating cavity, and the second packaging layer horizontally covers the concave part, so that the second material in the upper accommodating cavity cannot be highlighted on the upper part of the whole package, and the whole packaging effect is ensured.
Drawings
Fig. 1 is a schematic structural view of a packaging apparatus for a dual material container according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view showing the structure of the first heat sealing apparatus of FIG. 1;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic view of the upper and lower dies of FIGS. 2 and 3;
FIG. 5 is a schematic view of the upper and lower dies of FIGS. 2 and 3 in another direction;
wherein each of the marks is as follows: 1-a frame, 2-a sheet unreeling device, 3-a heating forming device, 4-a first unreeling device, 5-a first heat sealing device, 6-a second unreeling device, 7-a second heat sealing device, 8-a slitting device, 9-a traction reeling device, 10-a first filling station, 11-a second filling station and 12-a pre-pressing roller; 51-upper die table, 52-upper sealing die, 53-upper die driving mechanism, 54-lower die table, 55-lower sealing die, 56-lower die driving mechanism and 57-bump; 521-die holder, 522-metal heat-sealing die, 531-cylinder, 551-concave cavity, 561-servo motor, 562-driving cam, 563-driving wheel, 564-support column.
Description of the embodiments
The preferred embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a packaging device of a double-material container comprises a frame 1, a sheet unreeling device 2, a heating forming device 3, a first unreeling device 4, a first heat sealing device 5, a second unreeling device 6, a second heat sealing device 7, a slitting device 8 and a traction reeling device 9; the sheet unreeling device 2, the heating forming device 3, the first heat sealing device 5, the second heat sealing device 7, the slitting device 8 and the traction reeling device 9 are arranged on the frame 1 according to the traction conveying direction of the sheet, the first unreeling device 4 is arranged on the frame 1 and is positioned at one side of the first heat sealing device 5, and the second unreeling device 6 is arranged on the frame 1 and is positioned at one side of the second heat sealing device 7; a first filling station 10 is arranged between the thermoforming device 3 and the first heat-sealing device 5, and a second filling station 11 is arranged between the first heat-sealing device 5 and the second unreeling device 6.
In this embodiment, the first unreeling device 4 and the second unreeling device 6 generally adopt existing film unreeling equipment, the first unreeling device 4 unreels, pulls and finally covers the first film on the formed sheet with a plurality of containers, and the second unreeling device 6 unreels, pulls and finally covers the second film on the first packaging layer; the first unreeling device 4 is correspondingly arranged at one side of the first heat sealing device 5, and the second unreeling device 6 is correspondingly arranged at one side of the second heat sealing device 7.
In the present embodiment, the first filling station 10 is provided with a first filling device for filling a first material, the second filling station 11 is provided with a second filling device for filling a second material, and the first filling device and the second filling device are respectively used for selecting corresponding existing devices (such as a filling machine and the like) according to the differences of the first material and the second material, and in the present embodiment, only the first filling device is drawn on the first filling station 10 for illustration; the sheet unreeling device 2, the heating forming device 3, the slitting device 8 and the traction reeling device 9 are all of the prior art, and a person skilled in the art can select appropriate equipment according to actual production needs and according to the description of the specification and the actual use of each device, and will not be described in detail herein.
As shown in fig. 2 and 3, the first heat sealing device 5 includes an upper die table 51, an upper sealing die 52, an upper die driving mechanism 53, a lower die table 54, a lower sealing die 55, and a lower die driving mechanism 56, both of which are provided on the frame 1; in the present embodiment, the upper die driving mechanism 53 includes two air cylinders 531, the two air cylinders 531 are arranged on the frame 1 side by side, the cylinder bodies of the two air cylinders 531 face down vertically, the upper surface of the upper die table 51 is connected with the piston rods of the two air cylinders 531 at the same time, and the two air cylinders 531 drive the upper die table 51 to move down at the same time; in the present embodiment, the lower die driving mechanism 56 includes a servo motor 561, a transmission cam 562, a transmission wheel 563, and a support post 564; the transmission cam 562 is in transmission connection with an output shaft of the servo motor 561, the transmission wheel 563 is in transmission fit with the transmission cam 562, the lower end of the support column 564 is hinged with the transmission wheel 563, and the upper end of the support column 564 is fixedly connected with the lower die table 54; the lower die stage 54 is mounted on the power output end of the lower die driving mechanism 56, the upper sealing die 52 is provided on the upper die stage 51, the lower sealing die 55 is provided on the lower die stage 54, and the upper sealing die 52 is opposed to the lower sealing die 55 vertically.
As shown in fig. 4 and 5, the upper sealing die 52 includes a die holder 521 and a metal heat sealing die 522, and the upper sealing die 52 is provided with a plurality of downwardly projecting projections 57; the bump 57 is a plastic bump, the cross section of the bump 57 is circular, and the surface of the bump 57 is provided with annular stripes (not shown in the figure), in this embodiment, the bump 57 adopts a wafer with a certain thickness; the middle part of the metal heat-sealing die 522 is provided with a plurality of mounting holes, a plurality of plastic convex blocks 57 are correspondingly arranged in the mounting holes one by one and are locked on the die holder 521, and gaps exist between the plastic convex blocks 57 and the metal heat-sealing die 522. As shown in fig. 5, the lower sealing die 55 is provided with a plurality of cavities 551 capable of accommodating containers.
The second heat-sealing device 7 is used for horizontally heat-sealing the second film material on the edge of the first package layer, and the structure of the second heat-sealing device 7 is substantially the same as that of the first heat-sealing device 5, except that the upper sealing die 52 of the second heat-sealing device 7 is not provided with the bump 57, which will not be described in detail herein. In order to ensure that the first film material and the second film material can be smoothly covered on the container, the rising range of the first film material and the second film material is limited to a certain extent, and the first heat sealing device 5 and the second heat sealing device 7 are respectively provided with a pre-pressing roller 12 in front of the container along the conveying direction.
The overall flow of the container packaging process for dual materials of the present invention will be further described with reference to the accompanying drawings of the apparatus described above.
A container packaging process for dual materials comprising the steps of:
(1) Unreeling the sheet by using a sheet unreeling device 2, and thermoforming the sheet into a container with a plurality of double materials by using a thermoforming device 3, and naming the container as a formed sheet;
(2) Filling each container with a first material, wherein the height of the first material is lower than the depth of the container;
(3) Unreeling the first film material by adopting a first unreeling device 4, covering the first film material on the formed sheet material, tiling the first film material on the formed sheet material through a pre-pressing roller 12, and limiting the upward movement amplitude of the formed sheet material and the first film material; then, the upper heat-sealing die is driven to move upwards to form a die assembly, the upper heat-sealing die is provided with a convex block 57, the lower heat-sealing die jacks up the formed sheet and the first film, the formed sheet and the first film are tensioned at the edge of the lower heat-sealing die and cling to the convex block 57 upwards, after the die assembly is carried out, the containers are subjected to primary heat sealing, a first heat-sealing layer is formed on the formed sheet, and a concave part which is concave downwards is formed in the middle part of each container correspondingly; a lower accommodating cavity is formed between the concave part and the bottom of the corresponding container, so that the first material is encapsulated in the lower accommodating cavity;
(4) Filling the concave parts with a second material, wherein the height of the second material is lower than the opening edge of the container;
(5) Covering the first heat sealing layer with a second film material and performing second heat sealing to form a second heat sealing layer, wherein the second heat sealing layer and the first heat sealing layer are in heat sealing combination to horizontally cover all the concave parts at the opening edge of all the containers; an upper accommodating cavity is formed between the second heat sealing layer and each concave part, so that the second material is encapsulated in the upper accommodating cavity;
(6) And cutting the formed sheet subjected to the secondary heat sealing according to each container to form a single packaging container filled with two materials, and thus completing the packaging operation of filling the two materials into the containers.
Because the formed sheet material with the container for holding the double materials is directly formed from the sheet material, the formed sheet material can be pulled by the pulling and rolling device 9 in all the steps (2) to (6), and the formed sheet material with a plurality of containers is directly driven to pass through the devices until the step (6) is completed to be cut, and then the waste material is rolled.
The whole packaging process finally and directly forms a packaging container for containing two materials, wherein a concave part which is concave downwards is formed in the middle of a first packaging layer of the packaging container, namely, the containing space of the container is divided by the first packaging layer, a lower containing cavity is formed between the concave part and the bottom of the container, and an upper containing cavity is formed between a second packaging layer and the concave part; the first material is in the lower receiving chamber and the second material is in the upper receiving chamber. Finally, the formed packaging container filled with the two materials is directly unreeled and covered on the first packaging layer after the second material is filled into the upper accommodating cavity, and the second packaging layer horizontally covers the concave part, so that the second material in the upper accommodating cavity cannot be highlighted on the upper part of the whole package, and the whole packaging effect is ensured.
For the whole packaging container filled with two materials, from the formation of the container, the filling of the first material, the heat sealing of the first packaging layer, the filling of the second material and the heat sealing of the last second packaging layer, the whole packaging process follows the production process of a finished product from bottom to top and from inside to outside, the operation of a semi-finished product is not needed in the middle, the production procedures are reduced, and the production time of the final finished product is greatly reduced; meanwhile, each device in each step can be assembled according to the production process of the finished product from bottom to top and from inside to outside, so that the occupied space of the production device can be reduced, and the whole device has better consistency.
In order to ensure the heat sealing effect of the first film material, the first film material can automatically obtain a balance point between the deformation in the die and the supplement outside the die, and comprises a hot melt adhesive layer/film layer, an aluminum foil layer and a film layer which are sequentially compounded from bottom to top; and the second film material is made of a common packaging film material.
In step (3), the first heat-sealing device 5 is used for heat-sealing the first film material on the opening of the container to form a first heat-sealing layer, and forming a concave part which is concave downwards in the middle of the first heat-sealing layer, specifically: before the die assembly and heat sealing are carried out, the two air cylinders 531 of the upper die driving mechanism 53 drive the upper sealing die 52 to descend for a certain distance, then the servo motor 561 of the lower die driving mechanism 56 drives the cam 562 to rotate, and the lower sealing die 55 is lifted to be matched with the upper sealing die 52 under the transmission action of the driving cam 562 and the transmission wheel 563; as the first film material is flatly paved and covered on the container, when the lower sealing die 55 rises, the first film material covered on the lower sealing die 55 is driven to rise, when the lower sealing die 55 and the upper sealing die 52 are clamped, the part of the first film material in the die is contacted with the convex block 57, and when the clamping is completed, the first film material is recessed into the container under the limit of the convex block 57 to form a concave part; because the first film needs to be in close contact with the protruding blocks 57, in order to avoid the first film from being melted by overheating of the protruding blocks 57, the protruding blocks 57 are made of plastic, and annular stripes are arranged on the surfaces of the convex rings to increase friction force, so that the first film is fixed at fixed points once being clung to the protruding blocks 57, and the first film between the protruding blocks 57 is prevented from being pulled to move. When the convex block 57 contacts with the first film material, the center of the circle corresponds to the center of the container, so that when the first film material is concave inwards towards the container under the action of the convex block 57, the circumferential stress is more uniform, and the tensioning forces of the first film material between the containers in all directions are consistent.
In the whole die assembly process, the first film material is limited by the dragging and prepressing rollers 12 which are used for carrying out the first heat sealing at the back, and the formed sheet and the first film material are blocked at the front and back sides of the first heat sealing device 5 and cannot move upwards to a large extent, so that the front and back sides of the lower die are tensioned under the lifting of the lower die, and the tensioning is not fixed, so that the first film material has a certain degree of freedom; when the die is assembled, the part of the first film material in the die is subjected to the action of the convex blocks 57 to generate a certain degree of deformation, so that the first film material is recessed into the container, the air pressure in the container is increased to react with the first film material, and the first film material is tightly adhered to the convex blocks 57, so that the first film material between the convex blocks 57 is mutually tensioned, and a part of the first film material outside the die is pulled and moved to a certain extent, so that the tensile deformation of the first film material in the die and the supplement of the first film material outside the die automatically acquire a balance point, and the first film material is prevented from being excessively stretched and damaged. For the second heat-sealing device 7, the second film material is horizontally covered and finally directly heat-sealed on the first heat-sealing layer, so that the second heat-sealing device 7 can directly adopt the existing heat-sealing equipment.
The packaging technology and the packaging equipment for the double materials are used for directly forming the packaging container for containing the two materials finally, and the whole packaging process follows the production process of a finished product from bottom to top and from inside to outside, the operation of semi-finished products is not needed in the middle, the production procedures are reduced, and the production time of the final finished product is greatly reduced; meanwhile, each device in each step can be assembled according to the production process of the finished product from bottom to top and from inside to outside, so that the occupied space of the production device can be reduced, and the whole device has better consistency.
The formed packaging container divides the containing space of the container through the first packaging layer, a lower containing cavity is formed between the concave part and the bottom of the container, and an upper containing cavity is formed between the second packaging layer and the concave part; the first material is in the lower receiving chamber and the second material is in the upper receiving chamber. Finally, the formed packaging container filled with the two materials is directly unreeled and covered on the first packaging layer after the second material is filled into the upper accommodating cavity, and the second packaging layer horizontally covers the concave part, so that the second material in the upper accommodating cavity cannot be highlighted on the upper part of the whole package, and the whole packaging effect is ensured.
In addition, it should be noted that, in the specific embodiments described in the present specification, names of various parts and the like may be different, and all equivalent or simple changes of the structures, features and principles described in the conception of the present invention are included in the protection scope of the present invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A container packaging process for dual materials, comprising the steps of:
(1) Thermoforming the sheet into a container having a plurality of receptacles for said twin mass, designated as formed sheet;
(2) Filling each container with a first material, wherein the height of the first material is lower than the depth of the container;
(3) Covering the formed sheet with a first film material, performing first heat sealing on each container, forming a first heat sealing layer on the formed sheet, and forming a concave part which is concave downwards in the middle of each container by the first heat sealing layer; a lower accommodating cavity is formed between the concave part and the bottom of the corresponding container, so that the first material is encapsulated in the lower accommodating cavity;
(4) Filling the concave parts with a second material, wherein the height of the second material is lower than the opening edge of the container;
(5) Covering the first heat sealing layer with a second film material and performing second heat sealing to form a second heat sealing layer, wherein the second heat sealing layer and the first heat sealing layer are in heat sealing combination to horizontally cover all the concave parts at the opening edge of all the containers; an upper accommodating cavity is formed between the second heat sealing layer and each concave part, so that the second material is encapsulated in the upper accommodating cavity;
(6) And cutting the formed sheet subjected to the secondary heat sealing according to each container to form a single packaging container filled with two materials, and thus completing the packaging operation of filling the two materials into the containers.
2. The container packaging process for dual materials as claimed in claim 1, wherein: in the step (3), an upper heat-sealing die with a convex block is adopted for carrying out the first heat sealing.
3. The container packaging process for dual materials as claimed in claim 2, wherein: the step (1) is to unreel the sheet material by adopting a sheet material unreeling device; and (3) unreeling the first film material by adopting a first unreeling device, wherein the first heat seal is carried out by adopting a mode of driving a lower heat seal die to move upwards to carry out die assembly, the lower heat seal die jacks up the formed sheet and the first film material, the formed sheet and the first film material are tensioned at the edge of the lower heat seal die and cling to the convex block upwards, and after die assembly, the first heat seal is completed and the concave part is formed.
4. A container packaging process for dual materials according to claim 3, wherein: in the step (3), a pre-pressing roller is adopted to lay the first film material on the formed sheet material and limit the upward movement amplitude of the formed sheet material and the first film material.
5. The container packaging process for dual materials according to any one of claims 1 to 4, wherein: the formed sheet material with a plurality of containers for holding double materials formed in the step (1) is conveyed from the step (2) to the step (6) by the same traction winding device.
6. The container packaging process for dual materials according to any one of claims 1 to 4, wherein: the first film material comprises a hot melt adhesive layer/film layer, an aluminum foil layer and a film layer which are sequentially compounded from bottom to top.
7. A packaging apparatus for use in the container packaging process of any one of claims 1 to 6, comprising a frame, characterized in that: the device also comprises a sheet unreeling device, a heating forming device, a first unreeling device for unreeling the first film material, a first heat sealing device, a second unreeling device for unreeling the second film material, a second heat sealing device, a slitting device and a traction reeling device; the sheet unreeling device, the heating forming device, the first heat sealing device, the second heat sealing device, the slitting device and the traction reeling device are arranged on the frame according to the traction conveying direction of the sheet, the first unreeling device is arranged on the frame and is positioned at one side of the first heat sealing device, and the second unreeling device is arranged on the frame and is positioned at one side of the second heat sealing device; a first filling station for filling the first material in the step (2) is arranged between the heating forming device and the first heat sealing device, and a second filling station for filling the second material in the step (4) is arranged between the first heat sealing device and the second unreeling device; the first heat sealing device is used for heat sealing the first film material on the formed sheet material to form a first heat sealing layer in the step (3), and the first heat sealing layer forms a concave part which is concave downwards in the middle part of each container; and (5) the second heat sealing device is used for heat sealing the second film material on the first heat sealing layer to form a second heat sealing layer in the step (5).
8. The packaging apparatus of claim 7, wherein: the first heat sealing device comprises an upper die table, an upper sealing die, an upper die driving mechanism, a lower die table, a lower sealing die and a lower die driving mechanism; the upper die driving mechanism and the lower die driving mechanism are arranged on the frame, the upper die table is arranged on the power output end of the upper die driving mechanism, the lower die table is arranged on the power output end of the lower die driving mechanism, the upper sealing die is arranged on the upper die table, the lower sealing die is arranged on the lower die table, and the upper sealing die and the lower sealing die are opposite up and down; the upper sealing die is provided with a plurality of protruding blocks protruding downwards, and the lower sealing die is provided with a plurality of concave cavities capable of accommodating the containers.
9. The packaging apparatus of claim 8, wherein: the upper sealing die comprises a die holder and a metal heat sealing die, and the convex blocks are plastic convex blocks; a plurality of mounting holes are formed in the middle of the metal heat-sealing die, a plurality of plastic convex blocks are located in the mounting holes in a one-to-one correspondence mode and are locked on the die holder, and gaps exist between the plastic convex blocks and the metal heat-sealing die.
10. The packaging apparatus of claim 9, wherein: the cross section of the lug is round, and annular stripes are arranged on the surface of the lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311219988.6A CN116946461A (en) | 2023-09-21 | 2023-09-21 | Container packaging technology and packaging equipment for double materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311219988.6A CN116946461A (en) | 2023-09-21 | 2023-09-21 | Container packaging technology and packaging equipment for double materials |
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| Publication Number | Publication Date |
|---|---|
| CN116946461A true CN116946461A (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311219988.6A Pending CN116946461A (en) | 2023-09-21 | 2023-09-21 | Container packaging technology and packaging equipment for double materials |
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| CN (1) | CN116946461A (en) |
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| US20040118711A1 (en) * | 2001-04-20 | 2004-06-24 | Duffield Paul John | Water soluble containers comprising at least two compartments |
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| CN107804500A (en) * | 2017-11-28 | 2018-03-16 | 王少波 | One kind filling is to folded sealing all-in-one |
| CN208344659U (en) * | 2018-05-31 | 2019-01-08 | 王少波 | Printed sheet material container molding to mark closing device |
| CN109229466A (en) * | 2018-10-25 | 2019-01-18 | 广西科技师范学院 | The method of cup drink heat sealing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224601A (en) * | 1990-07-18 | 1993-07-06 | Rhone-Poulenc Ag Company | Water soluble package |
| CN1071637A (en) * | 1991-10-24 | 1993-05-05 | 罗纳-普朗克农业化学公司 | Water soluble package |
| US20040118711A1 (en) * | 2001-04-20 | 2004-06-24 | Duffield Paul John | Water soluble containers comprising at least two compartments |
| CN1968853A (en) * | 2004-06-19 | 2007-05-23 | 雷克特本克斯尔荷兰有限公司 | Method for preparing a water-soluble container with two compartments |
| CN105398611A (en) * | 2015-12-23 | 2016-03-16 | 上海江南制药机械有限公司 | Heat sealing device of high-speed flat plate type blister packaging machine |
| CN107804500A (en) * | 2017-11-28 | 2018-03-16 | 王少波 | One kind filling is to folded sealing all-in-one |
| CN208344659U (en) * | 2018-05-31 | 2019-01-08 | 王少波 | Printed sheet material container molding to mark closing device |
| CN109229466A (en) * | 2018-10-25 | 2019-01-18 | 广西科技师范学院 | The method of cup drink heat sealing |
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