CN113147097B - Seal-valve-free air sealing body and manufacturing method thereof - Google Patents
Seal-valve-free air sealing body and manufacturing method thereof Download PDFInfo
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- CN113147097B CN113147097B CN202110547329.XA CN202110547329A CN113147097B CN 113147097 B CN113147097 B CN 113147097B CN 202110547329 A CN202110547329 A CN 202110547329A CN 113147097 B CN113147097 B CN 113147097B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
- B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
- B31D5/0073—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including pillow forming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/02—Inflatable articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D81/051—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
- B65D81/052—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D2205/00—Multiple-step processes for making three-dimensional articles
- B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
- B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
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Abstract
The utility model provides a no seal valve air seal body and preparation method thereof, belongs to air seal body technical field, including main intake duct, branch air flue and cavity, branch air flue through one-way circulation between main intake duct and the cavity is connected its characterized in that: the main air inlet channel, the branch air inlet channel and the cavity are formed by hot pressing of two cavity membranes and two valve membranes; the two valve membranes are arranged between the two cavity body membranes; two bent continuous flow guide lines are arranged below the air dividing passage, and a flow guide air passage is formed between the two flow guide lines; the branch air inlet channel is communicated with the cavity through the flow guide air channel; and is prepared by a specific preparation method. The seal-free valve air sealing body obtained by the invention can reduce the impact of airflow on the valve membrane, protect the valve membrane from deformation, and meanwhile, can enhance the sealing effect of the valve membrane.
Description
Technical Field
The invention relates to the technical field of air sealing bodies, in particular to a seal-valve-free air sealing body and a manufacturing method thereof.
Background
The traditional air sealing body mostly adopts a valve air inlet formed by heat sealing after coating a heat-resistant layer, but the problem of the mode is too many and is gradually eliminated, and the mode is replaced by a valve design which can form one-way circulation without coating a heat-resistant stamping layer, namely a non-printing valve in the industry, for short, for example, an inflatable air bag without the heat-resistant layer design is mentioned in the patent application with the application number of 201610478707.2.
Although the air sealing body in the market has gradually adopted the air sealing body without the seal valve design, in order to narrow the passage of the air dividing passage entering the cavity, accelerate the gas flow rate, and facilitate the attachment of the valve film or the closing of the valve comprising the air dividing passage and the like after the completion of the inflation, the air leakage is avoided, and a hot stamping point or a discontinuous broken line or a pattern hot stamping and the like are generally required to be applied below the air dividing passage. However, the hot marks or the print points cause sharp points or sharp corners in the air passage, which are easy to generate airflow impact at the sharp points or the sharp corners, and further cause impact on the valve membrane, i.e. the valve, to cause deformation of the valve, even breakage of the valve membrane, and affect the sealing effect. In addition, the sharp points or sharp corners have extremely high requirements on temperature control of hot stamping, once the temperature is not well controlled, the valve film and the cavity film are easy to damage when being impacted by air flow when being slightly too high, the temperature is slightly too low, the valve film and the cavity film cannot be adhered, the requirements on position precision of the sharp points and the sharp corners are also higher, the production operation requirements are high, and the manufacturing cost is also increased.
Therefore, how to make hot seal cusp or closed angle can not appear on the valve, and then reduce the impact of air current to the valve membrane, the protection valve membrane is indeformable, and the seal valve air seal body that does not have of the airtight effect of valve membrane that can also strengthen simultaneously becomes the technological problem that this field needs a lot of to solve.
In addition, there is no gradual change or guide between the main air inlet channel and the branch air channel in the air sealing body in the market, and the air flow is not smooth enough, so that the air pressure to be borne by the main air inlet channel is relatively large, which is not favorable for the air flow to enter the branch air channel from the main air channel, and this also needs to be improved urgently.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the seal-free valve air sealing body, which can enable air flow to smoothly enter a cavity, reduce the impact of the air flow on a valve or a valve film and protect the valve from being deformed easily.
The invention also aims to provide a manufacturing method of the seal-free valve air sealing body, the method is simple in operation steps, and the air sealing body manufactured by the method can reduce the impact of airflow on a valve membrane, protect the valve membrane from deformation and enhance the sealing effect of the valve membrane.
The purpose of the invention is realized by the following technical scheme:
a seal-valve-free air sealing body comprises a main air inlet channel, a branch air inlet channel and a cavity, wherein the main air inlet channel is connected with the cavity through the branch air inlet channel which circulates in a one-way mode, and the main air inlet channel, the branch air inlet channel and the cavity are formed by hot pressing of two cavity films and two valve films; the two valve membranes are arranged between the two cavity body membranes; two curved continuous flow guide lines are arranged below the air dividing channel, and a flow guide air channel is formed between the two flow guide lines; the branch air inlet channel is communicated with the cavity through the flow guide air channel.
The further measures taken are: transversely laid a plurality of air flue partition portion between main intake duct and the cavity, interval between the air flue partition portion forms branch air flue, and adjacent two form the throat of big-end-up between the top of air flue partition portion. .
The further measures taken are: the necking is funnel-shaped.
The further measures taken are: the top of the air passage partition part is a convex arc with a high middle part and two low sides.
The further measures taken are: and flaring with a small upper part and a big lower part is formed between the bottoms of the adjacent air passage partitions.
The further measures taken are: and both sides of the bottom of the air passage partition part are concave arcs with high outer sides and low middle parts.
Further measures taken are: a transition arc section is arranged between the top and the bottom of the air passage partition part
The further measures taken are: the branch air flue includes branch air inlet and branch air inlet chamber, branch air inlet and main intake duct intercommunication, branch air inlet is through branch air inlet chamber and water conservancy diversion air flue intercommunication, the width of branch air inlet chamber is greater than the width of branch air inlet, also is greater than the width of water conservancy diversion air flue.
The further measures taken are: the diversion air passage is S-shaped.
Further measures taken are: the one end of main intake duct is equipped with and is used for sealing the terminal heat seal line of main intake duct one end, terminal heat seal line upwards extends to the top of cavity membrane from the air flue partition portion that is close to this main intake duct one end.
Further measures taken are: the diversion line enables the two valve films to be adhered to one of the cavity films.
Further measures taken are: the top of the cavity body membrane is provided with a first heat sealing line used for adhering two cavity body membranes, a second heat sealing line is arranged below the first heat sealing line and comprises a breaking area and an air flue separating part which are arranged at intervals, the two valve membranes are completely adhered to the two cavity body membranes through the air flue separating part, a main air inlet channel is formed between the first heat sealing line and the second heat sealing line, the breaking area between the air flue separating parts forms an air inlet channel, the bottom of the air flue separating part is connected with a separating line extending downwards, a transversely extending closing line is arranged in a crossed mode with the bottom of the separating line, a cavity is formed between every two adjacent separating lines, and the bottom of the cavity is closed through the closing line;
the top end of the diversion line is connected with the air passage partition part through a partition line, and the bottom end of the diversion line extends to the bottom end of the valve membrane.
Further measures taken are: the air channel separation part is provided with a connecting line, the connecting line is intersected with the separation line, two ends of the connecting line are respectively connected with the top ends of the guide lines on two sides of the separation line, the connecting line and the guide lines on the two ends are integrally formed, the top ends of the guide lines are connected with the separation line through the connecting line, the top ends of the separation lines are connected with the bottom of the air channel separation part, and the air channel separation part is positioned between two adjacent separation lines and forms the air separation cavity from the air channel separation part to the connecting line.
Further measures taken are: and a third heat sealing line transversely extends along the middle of the air passage partition part, and the third heat sealing line enables the valve film to be adhered to the adjacent cavity film.
Further measures taken are: the third heat sealing line is in a continuously distributed strip shape, and the heat sealing area of the third heat sealing line continuously extends to the top end of the valve film from the second heat sealing line and completely covers the top end of the valve film.
Further measures taken are: the third heat-sealing lines comprise main lines and branch parts, and the main lines extend along the transverse direction and are connected with the second heat-sealing lines in series; one end of each branch part is connected with the main line, the other end of each branch part extends out towards the direction of the top end of the valve membrane, and the branch parts are distributed on the main line at intervals.
A manufacturing method of a non-printing valve air sealing body comprises the following steps:
(1) Placing two valve films between the two cavity body films and close to the top of the cavity body films, and performing heat sealing treatment on one valve film to adhere the valve film to the adjacent cavity body film to form a third heat sealing line; performing heat sealing treatment on the valve film, the adjacent cavity film and the other valve film at the position of a curve-shaped guide air passage designed according to requirements below the third heat sealing line to form a curved continuous guide line; performing heat sealing treatment on the other valve film to enable the other valve film to be adhered to the adjacent cavity film to form another third heat sealing line;
(2) Performing heat sealing treatment below the third heat sealing line according to the shape interval of the corresponding air passage partition part, wherein the two valve films and the two cavity films are completely adhered in the area of the air passage partition part to form the air separating passage;
(3) The air passage separating part is extended downwards from the bottom of the air passage separating part to be subjected to heat sealing treatment to form a plurality of separating lines, and the separating lines are intersected with the bottom of the separating lines to be subjected to heat sealing treatment transversely to form a closed line, so that a cavity is formed between every two adjacent separating lines, and the bottom of the cavity is sealed through the closed line;
(4) And carrying out heat sealing treatment on the top of the cavity film to adhere the two cavity films to form a first heat sealing line, forming a main air inlet channel between the first heat sealing line and the air channel partition part, and carrying out heat sealing on the edge of the cavity film to obtain a finished product.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the curved guide air passage is arranged below the branch air passage, and the branch air passage is communicated with the cavity through the guide air passage, so that air flow entering the branch air passage can smoothly enter the cavity through the curved guide air passage. By adopting the curve type flow guide air passage, the soft curve is beneficial to the circulation of air flow, and the impact force of the air flow on the valve membrane is reduced, so that the valve membrane is protected from being deformed easily, the valve membrane is prevented from being damaged easily, and the air leakage risk is reduced; adopt crooked continuous water conservancy diversion line to replace the cusp, broken string or closed angle, can reach better air current effect, and cusp or closed angle also can not appear in the air flue, and continuous water conservancy diversion line, make whole lines smooth, but integrated into one piece, the temperature dispersion, easy impression, the node can not appear, local temperature is concentrated also can not appear easily, and make valve membrane 7 easy damaged, and conveniently produce operation control, conveniently carry out the heat-seal impression, and the accuracy requirement to the position is not so high, reduce the production degree of difficulty, the protection valve membrane has been realized, improve valve membrane seal, and make the smooth and easy effect of air current in the air flue. Through using two cavity membranes and two valve membranes, and two the valve membrane is located two between the cavity membrane, carry out the hot pressing and form main intake duct, branch air inlet duct and cavity for the material is simple easily obtained, convenient and fast, and need not use heat-resisting material when carrying out the hot pressing, also can form the branch air inlet duct of one-way circulation between the valve membrane, and the structure is retrencied, and the cost is lower.
The manufacturing method of the seal-free valve air sealing body is simple and convenient in operation steps, and the air sealing body manufactured by the method can reduce the impact of airflow on the valve membrane, protect the valve membrane from deformation and enhance the sealing effect of the valve membrane.
Drawings
FIG. 1 is a schematic structural view of an uninflated state of an embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic structural view of one of the chambers in an inflated state according to an embodiment of the present invention;
FIG. 4 is a schematic overall structure of an embodiment of the present invention in an uninflated state;
FIG. 5 is a schematic structural diagram of a third heat-sealing line according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a third heat-sealing line according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a third heat-sealing line according to an embodiment of the present invention;
wherein the arrows in fig. 4 indicate the intake direction of the airflow;
in the figure: 1. a primary air intake; 2. separating into an air channel; 201. an air inlet; 202. branch air cavity; 3. a cavity; 4. a flow guide air passage; 5. an airway partition; 501. a concave arc; 502. a transition arc section; 6. a luminal membrane; 7. a valve membrane; 8. a diversion line; 801. connecting wires; 9. a first heat seal line; 10. a second heat seal line; 1001. a breaking zone; 11. a separation line; 12. closing the line; 13. a third heat seal line; 1301. a main line; 1302. a branching section; 14. and (4) end heat sealing lines.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments. In the present specification, the terms "upper", "inner", "middle", "left", "right" and "one" are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship between the terms and the modifications may be regarded as the scope of the present invention without substantial technical changes.
As shown in fig. 1, the seal-valve-free air sealing body comprises a main air inlet channel 1, a branch air channel 2 and a cavity 3, wherein the main air inlet channel 1 is connected with the cavity 3 through the branch air channel 2 which is communicated in a one-way manner, a curved guide air channel 4 is arranged below the branch air channel 2, and the branch air channel 2 is communicated with the cavity 3 through the guide air channel 4; the main air inlet channel 1, the branch air inlet channel 2 and the cavity 3 are formed by hot pressing through two cavity membranes 6 and two valve membranes 7; two valve membranes 7 are arranged between the two cavity membranes 6.
Through setting up curved water conservancy diversion air flue 4 in the below of branch air flue 2, divide air flue 2 to communicate with cavity 3 through water conservancy diversion air flue 4 for the air current that gets into behind the branch air flue 2 can be through in the smooth and easy entering cavity 3 of curved water conservancy diversion air flue 4. By adopting the curve type flow guide air passage 4, the soft curve is beneficial to the circulation of air flow, and the impact force of the air flow on the valve membrane 7 is reduced, so that the valve membrane 7 is protected from being deformed easily, the valve membrane 7 is prevented from being damaged easily, and the air leakage risk is reduced; adopt crooked continuous water conservancy diversion line 8 to replace the cusp simultaneously, broken string or closed angle, can reach better air current effect, and cusp or closed angle also can not appear in the air flue, and continuous water conservancy diversion line 8, make whole lines smooth, but integrated into one piece, the temperature dispersion, easy impression, the node can not appear, local temperature is concentrated also can not easily appear, and make valve membrane 7 easy damaged, and conveniently carry out production operation control, conveniently carry out heat-seal impression, the accuracy requirement to the position is not so high, reduce the production degree of difficulty, protection valve membrane 7 has been realized, improve valve membrane 7 leakproofness, and make the smooth and easy effect of air current in the air flue. Through using two cavity membranes 6 and two valve membranes 7, and two valve membranes 7 locate between two cavity membranes 6, carry out the hot pressing and form main intake duct 1, branch air flue 2 and cavity 3 for the material is simple easily obtained, and convenient and fast need not use heat-resisting material when carrying out the hot pressing, also can form the branch air flue 2 of one-way circulation between valve membrane 7, and the structure is retrencied, and the cost is lower.
As shown in fig. 1 and 4, a plurality of air passage partitions 5 are transversely arranged between the main air inlet passage 1 and the cavity 3, the air passage partitions 5 form the sub air passages 2 at intervals, and a large-top and a small-bottom necking is formed between the tops of two adjacent air passage partitions 5. Compare in the branch inlet channel entry of traditional equal width, need great pressure when main inlet channel 1's air current gets into branch inlet channel 2, and this embodiment forms big-end-up's throat between the top through two adjacent air flue partitions 5, is favorable to the air current in the main inlet channel 1 to get into branch inlet channel 2, and valve membrane 7 is also opened more easily to reduce the pressure that the air current got into branch inlet channel from main air flue, make the air get into branch inlet channel 2 from main inlet channel 1 more smoothly, conveniently aerify.
As shown in fig. 1-2, the necking is funnel-shaped, so that the air fluency is excellent and the inflation effect is better. Certainly, the necking can also be in other shapes, as shown in fig. 1-2, the top of the air passage partition part 5 is a convex arc with a high middle and two low sides, and the arc shape changes gradually, so that the air flow in the main air inlet passage 1 can enter the branch air inlet passage 2 more favorably.
As shown in fig. 1-2 and 4, a flaring with a small top and a large bottom is formed between the bottoms of two adjacent air passage separating parts 5, which is beneficial to increasing the resistance of air flowing in and air flowing out, so that the air entering the air dividing air passage 2 is not easy to flow backwards, and the gradually increased space is convenient for storing air, so that the air can enter the cavity 3 through the air guiding air passage 4. The bottom both sides of air flue partition portion 5 are the concave arc 501 that the high centre in outside is low, adopt concave arc 501 design, block gas more easily, avoid getting into the gas refluence that divides air flue 2. Between the top and the bottom of the air duct partition 5 is a transition arc 502, which facilitates the air flow and avoids the impact of the air flow on the valve membrane 7.
As shown in fig. 1-2, 4, divide air inlet 2 to include and divide air inlet 201 and divide air inlet chamber 202 into, divide air inlet 201 and main intake duct 1 intercommunication, divide air inlet 201 to divide air inlet 202 and divide air inlet chamber 4 intercommunication through dividing, divide the width of air inlet chamber 202 to be greater than the width that divides air inlet 201, also be greater than the width of water conservancy diversion air inlet chamber 4 to can divide the air inlet chamber through the major space to carry out the gas storage. Through setting up branch gas pocket 202, conveniently store from the gas that divides gas port 201 to flow in, be favorable to gaseous getting into in the cavity 3 through water conservancy diversion air flue 4 simultaneously. The diversion air flue 4 is S-shaped, and the smooth and easy effect of air current can be made best to crooked S-shaped, and the impact of the air current that significantly reduces to valve membrane 7 protects valve membrane 7 indeformable, makes valve membrane 7 leakproofness stronger simultaneously, and whole more withstand voltage, durable, life is more permanent.
As shown in fig. 1 to 3, the two valve membranes 7 are adhered to one of the cavity membranes 6 by the guide lines 8, so that the valve membranes 7 can be fixed on one of the cavity membranes 6, the valve membranes 7 are adhered to a certain extent, and are fixed on one of the cavity membranes, so that the valve membranes are more easily sealed after the inflation is completed, and the sealing effect of the valve membranes 7 is improved.
As shown in fig. 1-4, a first heat-seal line 9 for adhering two cavity films 6 is arranged at the top of each cavity film 6, a second heat-seal line 10 is arranged below each first heat-seal line 9, each second heat-seal line 10 comprises a break area 1001 and an air channel partition part 5 which are arranged at intervals, the two valve films 7 and the two cavity films 6 are completely adhered through the air channel partition part 5, so that a main air inlet channel 1 is formed between the first heat-seal line 9 and the second heat-seal line 10, the break area 1001 between the air channel partition parts 5 forms a sub air channel 2, the bottom of the air channel partition part 5 is connected with a downward-extending partition line 11, a transversely-extending closed line 12 is arranged at the bottom of each partition line 11 in an intersecting manner, a cavity 3 is formed between two adjacent partition lines 11, and the bottom of the cavity 3 is closed through the closed line 12; the top end of the guide line 8 is connected with the air passage partition part 5 through a partition line 11, and the bottom end of the guide line 8 extends to the bottom end of the valve membrane 7, so that gas can directly enter the cavity after flowing out of the guide air passage 4 in the valve membrane 7.
As shown in fig. 1 to 4, a connecting line 801 is arranged below the air channel partition 5, the connecting line 801 intersects with the partition line 11, two ends of the connecting line 801 are respectively connected with the top ends of the flow guide lines 8 at two sides of the partition line 11, the connecting line 801 is integrally formed with the flow guide lines 8 at two ends so as to facilitate heat sealing, the top ends of the flow guide lines 8 are connected with the partition line 11 through the connecting line 801, the top ends of the partition lines 11 are connected with the bottom of the air channel partition 5, and the sub-air cavities 202 are formed between two adjacent partition lines 11 and from the air channel partition 5 to the connecting line.
As shown in fig. 1 to 4, one end of the main inlet duct 1 is provided with a terminal heat-seal line 14 for closing one end of the main inlet duct 1, and the terminal heat-seal line 14 extends upward from the duct partition portion 5 near one end of the main inlet duct 1 to the top end of the cavity film 6, thereby facilitating the inflation of the main inlet duct 1.
As shown in fig. 4 and 5, a third heat-sealing line 13 is transversely arranged along the middle of the air passage partition part 5 in an extending manner, and the third heat-sealing line 13 enables the valve film 7 to be adhered to the adjacent cavity film 6, so that the valve film 7 can be conveniently opened and air can enter. The third heat-sealing line 13 can also be arranged at the top of the valve film 7, so that the top of the valve film 7 is overlapped with the sub-air inlet 201, air is conveniently introduced, and the heat-sealing process can be reduced. Of course, the third heat-sealing line 13 may also be discontinuous, and the third heat-sealing line 13 may be disposed at intervals along the air duct partition portion 5, so that the hot-pressing area may be saved, wrinkles may be avoided, and the hot-pressing energy consumption may be saved.
As shown in fig. 6, one embodiment of the third heat-seal line 13 may be: the third heat-seal line 13 is in the form of a continuously distributed band, and the heat-seal area of the third heat-seal line 13 extends continuously from the second heat-seal line 10 to the top end of the valve film 7 and completely covers the top end of the valve film 7. By: the third heat sealing line 13 is in a continuously distributed strip shape and covers the top end of the valve membrane 7, so that heat sealing can be performed in one step, the steps are simplified, the heat sealing area is wide, the temperature is uniform, and the control is easy.
As shown in fig. 7, another embodiment of the third heat-seal line 13 may be: the third heat-seal line 13 comprises a main line 1301 and branch parts 1302, wherein the main line 1301 extends along the transverse direction and is connected with each second heat-seal line 10 in series; one end of each branch part 1302 is connected with the main line, and the other end extends towards the top end of the valve membrane 7, and a plurality of branch parts 1302 are distributed on the main line 1301 at intervals. The branch parts 1302 can adopt different shapes or patterns, the branch parts 1302 with different patterns are distributed on the main line 1301 at intervals and extend out towards the top end of the valve film 7, so that the top of the valve film 7 is heat-sealed, the branch parts 1302 are distributed on the main line 1301 at intervals, the heat-sealing area can be reduced, the phenomenon that the heat-sealing area is too large and wrinkles easily occurs is avoided, the heat-sealing heat quantity required to be used can be reduced, the heat-sealing loss is reduced, the heat energy is saved, and the environment friendliness is achieved.
The seal-valve-free air sealing body of the embodiment is obtained by the following manufacturing method, and comprises the following steps:
(1) Placing two valve films 7 between the two cavity body films 6 and close to the top of the cavity body films 6, and performing heat sealing treatment on one valve film 7 to enable the valve film 7 to be adhered to the adjacent cavity body film 6 to form a third heat sealing line 13; the valve film 7, the adjacent cavity film 6 and the other valve film 7 are subjected to heat sealing treatment according to the position of the curved diversion air channel 4 designed according to requirements below the third heat sealing line 13 to form a curved continuous diversion line 8; performing heat sealing treatment on the other valve film 7 to enable the other valve film 7 to be adhered to the adjacent cavity film 6 to form another third heat sealing line 13;
(3) Heat-sealing treatment is carried out below the third heat-sealing line 13 according to the shape interval of the corresponding air passage partition part 5, and the two valve films 7 and the two cavity films 6 are completely adhered in the area of the air passage partition part 5 to form a sub-air passage 2;
(4) Extending downwards from the bottom of the air passage partition part 5 to perform heat sealing treatment to form a plurality of partition lines 11, and performing heat sealing treatment transversely intersecting with the bottoms of the partition lines 11 to form closed lines 12, so that a cavity 3 is formed between two adjacent partition lines 11, and the bottom of the cavity 3 is sealed by the closed lines 12;
(5) Carry out heat-seal treatment to the top of cavity membrane 6 and with two cavity membrane 6 adhesions, form first heat seal line 9, form main intake duct 1 between first heat seal line 9 and the air flue partition part 5 to carry out the heat-seal to the edge of cavity membrane 6, obtain the finished product.
During the use, aerify main intake duct 1, draw open valve membrane 7 behind the expansion of main intake duct 1 for branch air flue 2 is opened, and gaseous smooth entering cavity 3 behind branch air flue 2's entry and the water conservancy diversion air flue 4 of passing through, when aerifing the back that finishes, cavity 3 inflation, the gaseous extrusion valve membrane 7 in the cavity 3, make water conservancy diversion air flue 4 between the valve membrane 7 and branch air flue 2 close, thereby produce airtight effect, can be used for the transportation packing of product. Of course, the product can be wrapped by the invention and then inflated.
The present invention is not limited to the above embodiments, and various other modifications, substitutions or combinations can be made by those skilled in the art without departing from the basic technical idea of the invention.
Claims (12)
1. The utility model provides a no seal valve air seal body, includes main intake duct, branch air flue and cavity, branch air flue through one-way circulation is connected its characterized in that between main intake duct and the cavity: the main air inlet channel, the branch air inlet channel and the cavity are formed by hot pressing of two cavity membranes and two valve membranes; the two valve membranes are arranged between the two cavity body membranes; two bent continuous flow guide lines are arranged below the air dividing channel, a flow guide air channel is formed between the two flow guide lines, and the two valve films are adhered to one of the cavity films through the flow guide lines; the branch air inlet channel is communicated with the cavity through the flow guide air channel; transversely laid a plurality of air flue partition portion between main intake duct and the cavity, interval between the air flue partition portion forms branch air flue, the bottom of air flue partition portion is connected with downwardly extending's parting line, the top of water conservancy diversion line is passed through parting line and is connected with air flue partition portion, the bottom of water conservancy diversion line extends to the bottom of valve membrane.
2. The valve-less air seal of claim 1, wherein: and a necking with a large upper part and a small lower part is formed between the tops of the two adjacent air passage separating parts.
3. The valve-less air seal of claim 2, wherein: the necking is funnel-shaped, and the top of the air passage separating part is a convex arc with a high middle part and two low sides.
4. The valve-less air seal of claim 2, wherein: flaring with a small upper part and a large lower part is formed between the bottoms of the adjacent two air passage separating parts, and both sides of the bottom of each air passage separating part are concave arcs with high outer sides and low middle parts.
5. The valve-less air seal of claim 2, wherein: the air dividing and distributing device comprises a main air inlet channel, an air dividing and distributing channel, a main air inlet channel, a flow guide air channel, an air dividing and distributing chamber and a flow guiding and distributing device, wherein the air dividing and distributing channel comprises an air dividing port and an air dividing chamber, the air dividing port is communicated with the main air inlet channel, the air dividing port is communicated with the flow guide air channel through the air dividing and distributing chamber, and the width of the air dividing and distributing chamber is larger than that of the air dividing port and is also larger than that of the flow guide air channel;
the one end of main intake duct is equipped with and is used for sealing the terminal heat seal line of main intake duct one end, terminal heat seal line upwards extends to the top of cavity membrane from the air flue partition portion that is close to this main intake duct one end.
6. The valve-less air seal of claim 5, wherein: the diversion air passage is S-shaped.
7. The valve-less air seal of claim 5, wherein: the valve film structure comprises a cavity body film and is characterized in that a first heat sealing line used for adhering two cavity body films is arranged at the top of the cavity body film, a second heat sealing line is arranged below the first heat sealing line and comprises a breaking area and an air flue separating part which are arranged at intervals, two valve films are completely adhered to the two cavity body films through the air flue separating part, a main air inlet channel is formed between the first heat sealing line and the second heat sealing line, the breaking area between the air flue separating parts forms an air inlet channel, a transversely extending closing line is intersected with the bottoms of the separating lines, a cavity body is formed between every two adjacent separating lines, and the bottom of the cavity body is closed through the closing line.
8. The valve-less air seal of claim 7, wherein: the air channel separation part is provided with a connecting line, the connecting line is intersected with the separation line, two ends of the connecting line are respectively connected with the top ends of the guide lines on two sides of the separation line, the connecting line and the guide lines on the two ends are integrally formed, the top ends of the guide lines are connected with the separation line through the connecting line, the top ends of the separation lines are connected with the bottom of the air channel separation part, and the air channel separation part is positioned between two adjacent separation lines and forms the air separation cavity from the air channel separation part to the connecting line.
9. The valve-less air seal of claim 7, wherein: and a third heat sealing line transversely extends along the middle of the air passage partition part, and the third heat sealing line enables the valve film to be adhered to the adjacent cavity film.
10. The valve-less air seal of claim 9, wherein: the third heat sealing line is in a continuously distributed strip shape, and the heat sealing area of the third heat sealing line continuously extends to the top end of the valve film from the second heat sealing line and completely covers the top end of the valve film.
11. The valve-less air seal of claim 9, wherein: the third heat-sealing lines comprise main lines and branch parts, and the main lines extend along the transverse direction and are connected with the second heat-sealing lines in series; one end of each branch part is connected with the main line, the other end of each branch part extends out towards the direction of the top end of the valve membrane, and the branch parts are distributed on the main line at intervals.
12. The method of making a valve-less air seal according to any of claims 9-11, wherein: the method comprises the following steps:
(1) Placing two valve films between the two cavity body films and at a position close to the top of the cavity body films, and performing heat sealing treatment on one valve film to enable the valve film to be adhered to the adjacent cavity body film to form a third heat sealing line; performing heat sealing treatment on the valve film, the adjacent cavity film and the other valve film at the position of the curved flow guide air passage designed according to requirements below the third heat sealing line to form a curved continuous flow guide line; performing heat sealing treatment on the other valve film to enable the other valve film to be adhered to the adjacent cavity film to form another third heat sealing line;
(2) Performing heat sealing treatment below the third heat sealing line according to the shape interval of the corresponding air passage partition part, wherein the two valve films and the two cavity films are completely adhered in the area of the air passage partition part to form the air separating passage;
(3) Extending downwards from the bottom of the air passage separating part to perform heat sealing treatment to form a plurality of separating lines, and intersecting with the bottoms of the separating lines to perform heat sealing treatment transversely to form a closed line, so that a cavity is formed between two adjacent separating lines, and the bottom of the cavity is sealed by the closed line;
(4) And carrying out heat-sealing treatment on the top of the cavity film to adhere the two cavity films to form the first heat-sealing line, forming a main air inlet channel between the first heat-sealing line and the air passage partition part, and carrying out heat-sealing on the edge of the cavity film to obtain a finished product.
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| CN202110547329.XA CN113147097B (en) | 2021-05-19 | 2021-05-19 | Seal-valve-free air sealing body and manufacturing method thereof |
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| CN202110547329.XA CN113147097B (en) | 2021-05-19 | 2021-05-19 | Seal-valve-free air sealing body and manufacturing method thereof |
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| CN100575208C (en) * | 2006-07-28 | 2009-12-30 | 廖耀鑫 | Air buffer sheet side wall turning device |
| CN101148209B (en) * | 2006-09-21 | 2011-02-02 | 廖耀鑫 | Air sealing body with strengthened air-tight function |
| CN104443794B (en) * | 2014-02-13 | 2016-10-05 | 苏州亚比斯复合材料有限公司 | Quickly open the air sealing body of air intake |
| CN104859952B (en) * | 2015-05-22 | 2017-03-22 | 厦门艾美森新材料科技股份有限公司 | Novel inflating package air cushion |
| CN105501673B (en) * | 2015-09-28 | 2018-06-05 | 珠海徐太日用品有限公司 | A kind of air sealing body |
| CN105197415A (en) * | 2015-09-30 | 2015-12-30 | 李健 | Inflatable packaging body |
| CN106081360A (en) * | 2016-06-22 | 2016-11-09 | 颜登坤 | Self-sealing air sealing body and manufacture method thereof |
| CN106003840A (en) * | 2016-06-23 | 2016-10-12 | 王兴明 | Inflatable airbag without heat-resistant layer and manufacturing method thereof |
| CN107826474A (en) * | 2017-11-25 | 2018-03-23 | 杭州巨杰包装科技有限公司 | Individual layer air valve film air column bag without heat resistant oils layer of ink |
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