CN219714632U - Flexible package air tightness test cavity device - Google Patents
Flexible package air tightness test cavity device Download PDFInfo
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- CN219714632U CN219714632U CN202321334094.7U CN202321334094U CN219714632U CN 219714632 U CN219714632 U CN 219714632U CN 202321334094 U CN202321334094 U CN 202321334094U CN 219714632 U CN219714632 U CN 219714632U
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- die holder
- sealing
- rubber diaphragm
- air tightness
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 68
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 claims description 26
- 238000004806 packaging method and process Methods 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 description 19
- 239000012528 membrane Substances 0.000 description 12
- 238000005457 optimization Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 238000009459 flexible packaging Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the technical field of air tightness detection, in particular to a flexible package air tightness test cavity device, which comprises an upper die holder and a lower die holder; the lower surface of the upper die holder and the upper surface of the lower die holder are respectively vertically provided with a first mounting hole and a second mounting hole in a penetrating manner, and a first rubber diaphragm and a second rubber diaphragm are respectively arranged in the first mounting hole and the second mounting hole; a first sealing structure is arranged between the upper die holder and the first rubber diaphragm, so that a first sealing accommodating cavity is formed in the first mounting hole in the area below the first rubber diaphragm; a second sealing structure is arranged between the lower die holder and the second rubber diaphragm so that a second sealing accommodating cavity is formed in the area above the second rubber diaphragm in the second mounting hole; a third sealing structure is arranged between the lower surface of the upper die holder and the upper surface of the lower die holder; the utility model has the characteristics of simpler and more reasonable structure, better completion of air tightness detection and improvement of detection reliability.
Description
Technical Field
The utility model relates to the technical field of air tightness detection, in particular to a flexible package air tightness testing cavity device.
Background
Flexible packaging refers to packaging in which the shape of the container can be changed after filling or removing the contents. Various bags, boxes, sleeves, envelopes and the like made of paper, aluminum foil, fiber, plastic film and composites thereof belong to flexible packages. There are two broad categories of flexible packaging, stretch wrap packaging and various bag packs. Stretch wrap packaging is comprised of a plastic film that has not yet been formed into a package shape by simply wrapping the film around one or more pieces of product to be packaged and securing it in place in some fashion. The plastic bag is shaped before or simultaneously with the product being filled. Most commonly, the plastic edges are heat sealed to form this shape.
Some common packages of medicines are packaged by plastic bags in flexible packages. In order to ensure the safety of the medicine in the plastic bag, it is required that the plastic bag containing the medicine satisfies the air tightness detection requirement. However, the existing air tightness testing device is unreasonable in design and the air tightness detection is not reliable enough.
Therefore, the technical staff in the field strives to develop a flexible package airtight test cavity device which has a simpler and more reasonable structure, can better complete the airtight detection and can improve the detection reliability, and is a technical problem to be solved by the technical staff in the field.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present utility model aims to provide a flexible package airtight testing cavity device which has a simpler and more reasonable structure, can better complete airtight detection, and can improve detection reliability.
In order to achieve the above purpose, the utility model provides a flexible package airtight test cavity device, which comprises an upper die holder and a lower die holder; the device is characterized in that a first mounting hole and a second mounting hole are vertically and respectively formed in the lower surface of the upper die holder and the upper surface of the lower die holder in a penetrating manner, and a first rubber diaphragm and a second rubber diaphragm are respectively arranged in the first mounting hole and the second mounting hole; a first sealing structure is arranged between the upper die holder and the first rubber diaphragm, so that a first sealing accommodating cavity is formed in the first mounting hole in the area below the first rubber diaphragm; a second sealing structure is arranged between the lower die holder and the second rubber diaphragm so that a second sealing accommodating cavity is formed in the area above the second rubber diaphragm in the second mounting hole; a third sealing structure is arranged between the lower surface of the upper die holder and the upper surface of the lower die holder; after the upper die holder and the lower die holder are buckled together, the first sealing containing cavity and the second sealing containing cavity jointly form a testing containing cavity which is arranged in a sealing way and is used for placing a packaging bag to be detected; the contact surface with the packaging bag to be tested is a cotton net air guide layer arranged on the first rubber diaphragm and the second rubber diaphragm; and a suction hole is arranged on the upper die holder or the lower die holder, one end of the suction hole is communicated with the test cavity, and the other end of the suction hole is used for being connected with a vacuumizing device.
When the flexible package air tightness testing cavity device is used for carrying out air tightness testing on the packaging bag, the packaging bag to be tested is firstly and correctly placed in the second sealing cavity, then the upper die holder and the lower die holder are buckled together, the first sealing cavity and the second sealing cavity form a sealing testing cavity, and the packaging bag is located in the testing cavity; and finally, vacuumizing the test cavity through vacuumizing equipment connected with a suction hole on the device, so that negative pressure is formed in the test cavity, and the air tightness test is completed. In the device, the inner surface of the rubber membrane is the cotton net air guide layer, a sealing cavity is formed by the rubber membrane and the sealing ring, and the rubber membrane can change along with the change of the current state of a product, so that the rubber membrane is perfectly attached to the product, the residual capacity cavity is reduced as much as possible, and the testing precision is improved. The cotton net air guide layer prevents false positive of the rubber diaphragm clinging to the product. The result of the test can be made more reliable.
As optimization, the upper die holder comprises an upper gland at the upper end, a first through hole is formed in the upper gland, an upper compression ring is arranged below the upper gland and connected through a screw, and the first through hole and an inner hole of the upper compression ring jointly form a first mounting hole; the outer part of the first rubber diaphragm is provided with a circle of first pressing edge and extends into the space between the lower surface of the upper pressing cover and the upper surface of the upper pressing ring; the first sealing structure comprises first sealing rings respectively arranged between the first pressing edge and the upper pressing cover and between the first pressing edge and the upper pressing cover.
Therefore, the structural design of the upper die holder is simpler and more reasonable; and the first seal structure design is more reasonable for sealed effect is better.
As optimization, the lower surface of the upper gland and the upper surface of the upper pressing ring are respectively provided with a first mounting groove, and the first sealing rings are respectively mounted in the first mounting grooves.
Thus, the installation and arrangement of the first sealing ring are more convenient by arranging the installation groove.
As optimization, the first through hole comprises a first through hole small-diameter section at the upper end and a first through hole large-diameter section at the lower end, and the first through hole large-diameter section and the inner hole of the upper pressing ring jointly form the first mounting hole.
Therefore, a step surface can be formed between the first through hole small-diameter section and the first through hole large-diameter section, and the first rubber diaphragm is more convenient to support.
As optimization, the lower die holder comprises a base gland at the lower end, a second through hole is formed in the base gland, a lower pressing ring is arranged above the base gland and connected through a screw, and the second through hole and an inner hole of the lower pressing ring jointly form a second mounting hole; the second rubber diaphragm is provided with a circle of second pressing edge outside and extends into the space between the upper surface of the base pressing cover and the lower surface of the lower pressing ring; the second sealing structure comprises second sealing rings respectively arranged between the second pressing edge and the base pressing cover and between the second pressing edge and the lower pressing ring.
Therefore, the structural design of the lower die holder is simpler and more reasonable; and the second seal structure design is more reasonable for sealed effect is better.
As optimization, the upper surface of the base gland and the lower surface of the lower pressing ring are respectively provided with a second mounting groove, and the second sealing rings are respectively mounted in the second mounting grooves.
Like this, through the design second mounting groove, can make things convenient for the installation of second sealing washer to arrange more.
As optimization, the second through hole comprises a second through hole large-diameter section at the upper end and a second through hole small-diameter section at the lower end, and the second through hole large-diameter section and the inner hole of the lower pressing ring jointly form the second mounting hole.
Therefore, a step surface can be formed between the second through hole small-diameter section and the second through hole large-diameter section, and the second rubber diaphragm is more convenient to support.
As optimization, the third sealing structure comprises a third mounting groove arranged on the upper surface of the upper pressing ring, and a third sealing ring is arranged in the third mounting groove.
Thus, the third sealing structure is simpler and more reasonable in design.
As an optimization, the suction hole comprises a suction hole vertical section which is arranged on the upper surface of the lower pressing ring and is positioned on the inner side of the third sealing ring, a suction hole horizontal section is arranged on the peripheral surface of the lower pressing ring, and the inner end of the suction hole horizontal section is communicated with the suction hole vertical section.
Therefore, the structural layout of the suction holes is more reasonable and the use is more convenient.
As optimization, the first rubber diaphragm and the second rubber diaphragm are respectively of a double-layer structure design and are of a cylindrical structure design after being inflated, and the middle parts of the first rubber diaphragm and the second rubber diaphragm are respectively recessed upwards and downwards to form the first recessed part and the second recessed part.
Like this, first rubber diaphragm and second rubber diaphragm structural design is more reasonable.
In conclusion, the structure has the characteristics that the structure is simpler and more reasonable, the air tightness detection can be better completed, and the detection reliability can be improved.
Drawings
Fig. 1 is a schematic top view of a flexible package air tightness testing chamber device in accordance with an embodiment of the present utility model.
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1.
Fig. 3 is a partially enlarged schematic view of the B position in fig. 1.
Detailed Description
The present utility model will be further described with reference to the drawings and examples, and it should be noted that in the description of the present utility model, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific manner, and thus should not be construed as limiting the present utility model. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, a flexible package air tightness test cavity device comprises an upper die holder 1 and a lower die holder 2; the lower surface of the upper die holder and the upper surface of the lower die holder are respectively vertically provided with a first mounting hole and a second mounting hole in a penetrating manner, and a first rubber diaphragm 3 and a second rubber diaphragm 4 are respectively arranged in the first mounting hole and the second mounting hole; a first sealing structure is arranged between the upper die holder and the first rubber diaphragm, so that a first sealing accommodating cavity 5 is formed in the first mounting hole in the area below the first rubber diaphragm; a second sealing structure is arranged between the lower die holder and the second rubber diaphragm so that a second sealing containing cavity 6 is formed in the area above the second rubber diaphragm in the second mounting hole; a third sealing structure is arranged between the lower surface of the upper die holder and the upper surface of the lower die holder; after the upper die holder and the lower die holder are buckled together, the first sealed containing cavity and the second sealed containing cavity jointly form a test containing cavity 7 which is in sealed arrangement and is used for placing a packaging bag 8 to be detected; the contact surface with the packaging bag to be tested is a cotton net air guide layer arranged on the first rubber diaphragm and the second rubber diaphragm; and a suction hole 9 is arranged on the upper die holder or the lower die holder, one end of the suction hole is communicated with the test cavity, and the other end of the suction hole is used for being connected with a vacuumizing device.
When the flexible package air tightness testing cavity device is used for carrying out air tightness testing on the packaging bag, the packaging bag to be tested is firstly and correctly placed in the second sealing cavity, then the upper die holder and the lower die holder are buckled together, the first sealing cavity and the second sealing cavity form a sealing testing cavity, and the packaging bag is located in the testing cavity; and finally, vacuumizing the test cavity through vacuumizing equipment connected with a suction hole on the device, so that negative pressure is formed in the test cavity, and the air tightness test is completed. In the device, the inner surface of the rubber membrane is the cotton net air guide layer, a sealing cavity is formed by the rubber membrane and the sealing ring, and the rubber membrane can change along with the change of the current state of a product, so that the rubber membrane is perfectly attached to the product, the residual capacity cavity is reduced as much as possible, and the testing precision is improved. The cotton net air guide layer prevents false positive of the rubber diaphragm clinging to the product. The result of the test can be made more reliable.
In this embodiment, the upper die holder includes an upper gland 10 at the upper end, a first through hole is formed on the upper gland, an upper press ring 11 is connected under the upper gland and through a screw, and the first through hole and an inner hole of the upper press ring jointly form the first mounting hole; the outer part of the first rubber diaphragm is provided with a circle of first pressing edge 12 and extends between the lower surface of the upper pressing cover and the upper surface of the upper pressing ring; the first sealing arrangement comprises a first sealing ring 13 arranged between the first bead and the upper gland and between the first bead and the upper gland, respectively.
Therefore, the structural design of the upper die holder is simpler and more reasonable; and the first seal structure design is more reasonable for sealed effect is better.
In this embodiment, a first mounting groove 14 is provided on each of the lower surface of the upper gland and the upper surface of the upper pressure ring, and the first seal ring is mounted in each of the first mounting grooves.
Thus, the installation and arrangement of the first sealing ring are more convenient by arranging the installation groove.
In this specific embodiment, the first through hole includes a first through hole small diameter section at the upper end and a first through hole large diameter section at the lower end, and the first through hole large diameter section and the inner hole of the upper pressure ring jointly form the first mounting hole.
Therefore, a step surface can be formed between the first through hole small-diameter section and the first through hole large-diameter section, and the first rubber diaphragm is more convenient to support.
In this embodiment, the lower die holder includes a base gland 15 at the lower end, a second through hole is formed on the base gland, a lower pressing ring 16 is connected and disposed above the base gland through a screw, and the second through hole and an inner hole of the lower pressing ring jointly form the second mounting hole; the second rubber diaphragm is provided with a circle of second pressing edge 17 outside and stretches into the space between the upper surface of the base pressing cover and the lower surface of the lower pressing ring; the second seal arrangement includes a second seal ring 18 each disposed between the second bead and the base gland and between the second bead and the lower pressure ring.
Therefore, the structural design of the lower die holder is simpler and more reasonable; and the second seal structure design is more reasonable for sealed effect is better.
In this embodiment, a second mounting groove 19 is respectively provided on the upper surface of the base press cover and the lower surface of the lower press ring, and the second sealing ring is respectively mounted in the second mounting groove.
Like this, through the design second mounting groove, can make things convenient for the installation of second sealing washer to arrange more.
In this specific embodiment, the second through hole includes a second through hole large diameter section at the upper end and a second through hole small diameter section at the lower end, and the second through hole large diameter section and the inner hole of the lower pressure ring jointly form the second mounting hole.
Therefore, a step surface can be formed between the second through hole small-diameter section and the second through hole large-diameter section, and the second rubber diaphragm is more convenient to support.
In this embodiment, the third sealing structure includes a third mounting groove 20 disposed on the upper surface of the upper pressure ring, and a third sealing ring 21 is disposed in the third mounting groove.
Thus, the third sealing structure is simpler and more reasonable in design.
In this embodiment, the suction hole includes a suction hole vertical section 22 disposed on the upper surface of the lower pressing ring and located inside the third sealing ring, and a suction hole horizontal section 23 is disposed on the outer circumferential surface of the lower pressing ring, and the inner end of the suction hole horizontal section is in communication with the suction hole vertical section.
Therefore, the structural layout of the suction holes is more reasonable and the use is more convenient.
In this embodiment, the first rubber membrane and the second rubber membrane are respectively in a double-layer structure design and are in a cylindrical structure design after being inflated, and the middle parts of the first rubber membrane and the second rubber membrane are respectively recessed upwards and downwards to form the first recessed part 24 and the second recessed part 25.
Like this, first rubber diaphragm and second rubber diaphragm structural design is more reasonable.
In conclusion, the structure has the characteristics that the structure is simpler and more reasonable, the air tightness detection can be better completed, and the detection reliability can be improved.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (9)
1. A flexible package air tightness test cavity device comprises an upper die holder and a lower die holder; the device is characterized in that a first mounting hole and a second mounting hole are vertically and respectively formed in the lower surface of the upper die holder and the upper surface of the lower die holder in a penetrating manner, and a first rubber diaphragm and a second rubber diaphragm are respectively arranged in the first mounting hole and the second mounting hole; a first sealing structure is arranged between the upper die holder and the first rubber diaphragm, so that a first sealing accommodating cavity is formed in the first mounting hole in the area below the first rubber diaphragm; a second sealing structure is arranged between the lower die holder and the second rubber diaphragm so that a second sealing accommodating cavity is formed in the area above the second rubber diaphragm in the second mounting hole; a third sealing structure is arranged between the lower surface of the upper die holder and the upper surface of the lower die holder; after the upper die holder and the lower die holder are buckled together, the first sealing containing cavity and the second sealing containing cavity jointly form a testing containing cavity which is arranged in a sealing way and is used for placing a packaging bag to be detected; the contact surface with the packaging bag to be tested is a cotton net air guide layer arranged on the first rubber diaphragm and the second rubber diaphragm; and a suction hole is arranged on the upper die holder or the lower die holder, one end of the suction hole is communicated with the test cavity, and the other end of the suction hole is used for being connected with a vacuumizing device.
2. The flexible package air tightness testing chamber device as defined in claim 1, wherein: the upper die holder comprises an upper gland at the upper end, a first through hole is formed in the upper gland, an upper compression ring is arranged below the upper gland and connected through a screw, and the first through hole and an inner hole of the upper compression ring jointly form a first mounting hole; the outer part of the first rubber diaphragm is provided with a circle of first pressing edge and extends into the space between the lower surface of the upper pressing cover and the upper surface of the upper pressing ring; the first sealing structure comprises first sealing rings respectively arranged between the first pressing edge and the upper pressing cover and between the first pressing edge and the upper pressing cover.
3. A flexible package air tightness testing chamber device as defined in claim 2, wherein: the upper gland lower surface and the upper compression ring upper surface are respectively provided with a first mounting groove, and the first sealing rings are respectively mounted in the first mounting grooves.
4. A flexible package air tightness testing chamber device as defined in claim 2, wherein: the first through hole comprises a first through hole small-diameter section at the upper end and a first through hole large-diameter section at the lower end, and the first through hole large-diameter section and an inner hole of the upper pressing ring jointly form the first mounting hole.
5. The flexible package air tightness testing chamber device as defined in claim 1, wherein: the lower die holder comprises a base gland at the lower end, a second through hole is formed in the base gland, a lower pressing ring is arranged above the base gland and connected through a screw, and the second through hole and an inner hole of the lower pressing ring jointly form a second mounting hole; the second rubber diaphragm is provided with a circle of second pressing edge outside and extends into the space between the upper surface of the base pressing cover and the lower surface of the lower pressing ring; the second sealing structure comprises second sealing rings respectively arranged between the second pressing edge and the base pressing cover and between the second pressing edge and the lower pressing ring.
6. The flexible package air tightness testing chamber device according to claim 5, wherein: and a second mounting groove is respectively formed in the upper surface of the base gland and the lower surface of the lower pressing ring, and the second sealing rings are respectively arranged in the second mounting grooves.
7. The flexible package air tightness testing chamber device according to claim 5, wherein: the second through hole comprises a second through hole large-diameter section at the upper end and a second through hole small-diameter section at the lower end, and the second through hole large-diameter section and the inner hole of the lower pressing ring jointly form the second mounting hole.
8. The flexible package air tightness testing chamber device according to claim 5, wherein: the third sealing structure comprises a third mounting groove arranged on the upper surface of the upper pressing ring, and a third sealing ring is arranged in the third mounting groove.
9. The flexible package air tightness testing chamber device as defined in claim 8, wherein: the suction hole comprises a suction hole vertical section which is arranged on the upper surface of the lower pressing ring and positioned on the inner side of the third sealing ring, a suction hole horizontal section is arranged on the peripheral surface of the lower pressing ring, and the inner end of the suction hole horizontal section is communicated with the suction hole vertical section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321334094.7U CN219714632U (en) | 2023-05-29 | 2023-05-29 | Flexible package air tightness test cavity device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321334094.7U CN219714632U (en) | 2023-05-29 | 2023-05-29 | Flexible package air tightness test cavity device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219714632U true CN219714632U (en) | 2023-09-19 |
Family
ID=88001720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321334094.7U Active CN219714632U (en) | 2023-05-29 | 2023-05-29 | Flexible package air tightness test cavity device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219714632U (en) |
-
2023
- 2023-05-29 CN CN202321334094.7U patent/CN219714632U/en active Active
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