CN117500733A - Method for forming and fixing gasket on mounting cup - Google Patents
Method for forming and fixing gasket on mounting cup Download PDFInfo
- Publication number
- CN117500733A CN117500733A CN202180099561.XA CN202180099561A CN117500733A CN 117500733 A CN117500733 A CN 117500733A CN 202180099561 A CN202180099561 A CN 202180099561A CN 117500733 A CN117500733 A CN 117500733A
- Authority
- CN
- China
- Prior art keywords
- mounting cup
- outer gasket
- gasket
- groove
- adhesive layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000000443 aerosol Substances 0.000 claims abstract description 61
- 239000012790 adhesive layer Substances 0.000 claims abstract description 43
- 238000001746 injection moulding Methods 0.000 claims abstract description 22
- 239000012768 molten material Substances 0.000 claims abstract description 15
- 230000008021 deposition Effects 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- 238000000151 deposition Methods 0.000 claims description 15
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 13
- 239000003380 propellant Substances 0.000 description 10
- 238000002788 crimping Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000002318 adhesion promoter Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000006199 nebulizer Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- 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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/38—Details of the container body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C2045/14459—Coating a portion of the article, e.g. the edge of the article injecting seal elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/7506—Valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
A method for forming and securing an outer gasket (400) around a mounting cup (200) of an aerosol valve is provided, comprising the steps of: an adhesive layer (400) is deposited on a groove (201) formed at a mounting cup (200) using an adhesive deposition unit, wherein an outer gasket (400) is to be molded on the groove (201), and a molten material is injected using an injection molding machine to form the outer gasket based on the shape of a gasket mold and the groove (201). When the outer gasket (400) is molded to adhere the outer gasket (400) to the groove (201) of the mounting cup (200), the adhesive layer (300) adheres the outer gasket (400) to the groove (201).
Description
Technical Field
The present invention relates to forming and securing washers on mounting cups. More particularly, the present invention relates to a method of forming an outer gasket by deposition of an adhesive layer and injection molding of the outer gasket and securing the outer gasket to a mounting cup of an aerosol valve.
Background
Aerosol sprayers comprise an aerosol canister, which is a canister that stores contents such as a charge and a propellant, and an aerosol valve that seals the aerosol canister. The aerosol valve may include a mounting cup surrounding one end of the housing, at which a valve stem with a valve is inserted. The load may be, but is not limited to, a thin paint or any form of liquid or fine powder. Similarly, the propellant may be, but is not limited to, air or a gaseous hydrocarbon. Propellant is typically stored in aerosol cans under high pressure so that the propellant can forcibly dispense the charge when the valve of the aerosol valve is opened.
The manufacture of aerosol sprayers involves attaching an aerosol valve to an aerosol canister by a crimping process to seal the contents of the aerosol canister in a gas-tight and leak-proof manner. Accordingly, the mounting cup of an aerosol valve typically has a gasket to form a seal between the aerosol valve and the aerosol canister.
However, certain steps in the manufacture of aerosol sprayers may lead to defects in the final product. One of these steps is the step of performing a crimping process in which the force introduced by the crimper deflects certain components of the aerosol valve, such as the outer gasket, from their original positions. As a result, the aerosol valve may not be properly crimped onto the aerosol body and the aerosol sprayer may be defective. Another step is the step of filling with propellant, wherein when the propellant is filled into the aerosol canister under high pressure, a sudden pressure differential may create a force that deflects the outer gasket from its original position.
Drawbacks caused by the outer gasket being deflected from its original position include insufficient pressurization of the load due to leakage of propellant, which results in the inability to dispense the load or to dispense the load in a flow-through manner. Thus, the product lifetime is greatly shortened and the aerosol spray will be discarded before the load is completely consumed, thus also wasting it.
Some participants in the aerosol industry have attempted to avoid the above problems by providing a solution that ensures that the outer gasket of the aerosol valve remains fixed in its original position throughout the aerosol sprayer manufacturing process. One of the solutions is in particular to make the outer gasket thicker and with a semi-annular cross-sectional shape, so that the outer gasket can completely accommodate the recess of the mounting cup in which it is to be placed.
Furthermore, there are several disclosed techniques involving forming a gasket around a mounting cup of an aerosol valve by injection molding. One of these techniques is JP2626464B2, which discloses a method of forming a thermoplastic resin gasket having a uniform shape at a curled portion of a mounting cup with high accuracy and improving productivity. The mounting cup is placed in a mold for injection molding, and a gasket is formed between a groove portion of the mounting cup and a groove portion of the mold.
Another disclosed technique is EP2853506B1, which discloses a method of manufacturing an aerosol valve assembly comprising a mounting cup having a dome and a crimp body, a valve body, a stem, a spring member holding the stem in a closed position in the absence of external stress, an inner seal to be placed in the dome of the cup, and an outer seal to be placed at the crimp edge of the cup. The invention also relates to an aerosol valve assembly and a forming process for carrying out the method. In particular, the outer gasket is formed on the surface of the mounting cup by injection molding.
Even so, making the aerosol gasket thicker and having a semi-annular shape does not completely guarantee that the outer gasket is prevented from deviating from its original position during the step of performing the crimping process and the step of filling with propellant. The formation of the outer washer on the mounting cup by an injection molding process as taught in JP2626464B2 and EP2853506B1 only ensures the correct positioning of the outer washer when it is first formed or molded on the recess of the mounting cup. They fail to disclose a method for securely fixing the outer gasket to the mounting cup throughout the aerosol sprayer manufacturing process.
It is therefore desirable to form and secure the outer gasket to the mounting cup of an aerosol valve by deposition of an adhesive layer and injection molding of the outer gasket to ensure that the outer gasket does not deviate from its original position throughout the aerosol sprayer manufacturing process.
Disclosure of Invention
The primary object of the present invention is to provide a method of forming an outer gasket on a mounting cup of an aerosol valve and securing the outer gasket in its original position on the mounting cup throughout the aerosol sprayer manufacturing process. To achieve this object, the invention provides a method involving the application of an adhesive layer and the injection molding of an outer gasket around a mounting cup. By means of the invention, the injection-molded outer gasket is fixed in a fixed position and does not deviate from its original position during the various steps of the aerosol sprayer manufacturing process, in particular during the crimping step and the propellant filling step.
The present invention provides a method for forming and securing an outer gasket around a mounting cup of an aerosol valve, the method comprising the steps of: an adhesive layer is deposited on a groove formed at the mounting cup using an adhesive deposition unit, an outer gasket is to be formed on the groove, and a molten material is injected using an injection molding machine to form the outer gasket based on the shape of the gasket mold and the groove. When the outer gasket is formed or shaped to adhere the outer gasket to the groove of the mounting cup, the adhesive layer adheres the outer gasket to the groove.
Preferably, with this method, the recess is formed around the bottom surface of the rim of the mounting cup. It is further preferred that the adhesive layer is in the form of a fluid.
Preferably, with respect to the method, the method further comprises a step of allowing the adhesive layer to dry. It is also preferable that the adhesive layer is allowed to dry for 5 to 10 minutes.
Preferably, with respect to the method, the outer gasket is formed by an overmolding process wherein the gasket mold includes at least a location adjacent the groove for injecting molten material into the cavity between the groove and the gasket mold. Further preferably, the molten material is a thermoplastic, thermoset or elastomeric material.
The invention also provides an aerosol valve comprising a mounting cup surrounding one end of a housing, a valve stem being inserted at the mounting cup. The mounting cup has an outer gasket formed by the method described previously.
Those skilled in the art will readily appreciate that the present invention is well adapted to carry out the objects and obtain the ends and advantages mentioned, as well as those inherent therein. The embodiments described herein are not intended as limitations on the scope of the invention.
Drawings
In order that the invention may be readily understood, a preferred embodiment thereof is illustrated in the accompanying drawings and, by way of example, will be readily understood and appreciated, together with the structure and operation thereof, and the many advantages thereof, when considered in connection with the following description.
Fig. 1 is a flow chart showing the steps of the method of the present invention.
Fig. 2 is a schematic diagram showing a cross-sectional view of the mounting cup and the adhesive layer and injection molded outer gasket.
FIG. 3 is a schematic diagram showing a cross-sectional view of an assembled aerosol sprayer including an aerosol valve and the aerosol canister, the aerosol valve including a mounting cup and a valve stem; the mounting cup is the final product of the method of the present invention.
Detailed Description
The present invention relates to a method of forming and fixing a gasket around a mounting cup 200 of an aerosol valve by application of an adhesive layer and injection molding of an outer gasket 400, and more particularly, forming and fixing the outer gasket 400. The invention may be described in terms of various embodiments having elements in common. According to the inventive concept, the method involves a step of depositing the adhesive layer 300 on the mounting cup 200, forming or molding the outer gasket 400 at the mounting cup 200, and an injection molding step of forming the outer gasket 400 by encasing the mounting cup 200 in a gasket mold and injecting a molten material. The invention will now be described in more detail by way of example with reference to the accompanying drawings.
Fig. 1 is a flow chart illustrating the process flow of the present invention. The first step is step 101, wherein a bare mounting cup 200 of an aerosol valve is prepared from a previous step in the aerosol sprayer manufacturing process. In a second step, step 102, the mounting cup 200 is placed on an adhesive deposition unit for depositing an adhesive layer 300 on the recess 201 on the mounting cup 200. The adhesive layer 300 is preferably dried before the next step. In a third step, step 103, the mounting cup 200 is wrapped in the gasket mold of an injection molding machine. In a fourth step, step 104, molten material is injected into the gasket mold by the components of the injection molding machine to form the outer gasket 400. In the last step, step 105, the mounting cup 200 is removed from the gasket mold, the mounting cup 200 now further comprising a molded outer gasket 400, the outer gasket 400 being adhered to the mounting cup 200 by the adhesive layer 300. The mounting cup 200 may then be transferred to other steps in the aerosol nebulizer manufacturing process.
Fig. 2 shows a cross-sectional view of the mounting cup 200, as per step 105. Fig. 2 shows a mounting cup 200, an adhesive layer 300 deposited on a recess 201 of the mounting cup 200, and an outer gasket 400 formed by injection molding. It should be noted that the adhesive layer 300 in fig. 2 is drawn in an exaggerated manner, in fact being a very thin layer.
Referring to fig. 1 and 2, in step 101, a bare mounting cup 200 to be used in the method of the present invention may be manufactured by a conventional method. In particular, the mounting cup 200 is preferably composed of a metallic material, such as an aluminum alloy, stainless steel, or the like, so that the mounting cup 200 can withstand an internal pressurized environment when the mounting cup 200 is ultimately assembled into an aerosol atomizer during the aerosol atomizer manufacturing process. It should be noted that the preferred embodiment of the mounting cup 200 has an annular profile, and thus the injection molded outer gasket 400 should have an annular final shape. However, the mounting cup 200 need not be limited to such a profile, and may have a square or rectangular shape, which will also affect the final shape of the injection molded outer gasket 400.
Referring to fig. 1 and 2, in step 102, the mounting cup 200 is mounted on an adhesive deposition unit for depositing the adhesive layer 300 on the groove 201 of the mounting cup 200, the groove 201 being defined to be located at the bottom surface of the rim of the mounting cup 200. Preferably, the adhesive layer 300 is in the form of an adhesion promoter that will form a dry, non-tacky layer on the surface after deposition, which layer, when dried or cured, promotes adhesion, thereby reducing work-site clutter. The adhesion promoter used in the present method is specifically selected so that a chemical bond is formed between the groove 201 of the mounting cup 200 and the injection molded outer gasket 400. It is also preferable that the adhesive layer 300 is solvent-type or diluted with a solvent so that it can be deposited to the surface of the groove 201 with the same smoothness and consistency through the nozzle of the adhesive depositing unit.
The adhesive layer 300 may be deposited on the groove 201 by a nozzle of an adhesive layer deposition unit by configuring the mounting cup 200 to rotate in a ring-shaped manner such that the groove 201 thereof rotates with respect to the nozzle for depositing the adhesive layer 300. Alternatively, the nozzle of the adhesive deposition unit nozzle may be configured to rotate adjacent to the groove 201 and deposit the adhesive layer 300.
Since the preferred adhesive layer 300 is in the form of an adhesion promoter, after the adhesive layer 300 is deposited on the recess 201 of the mounting cup 200, the mounting cup 200 is air-dried to dry or cure the adhesive layer 300. Drying may be carried out at room temperature or in an oven having a higher temperature. Preferably, the adhesive layer 300 dries or cures within 5 to 10 minutes after being deposited on the recess 201 of the mounting cup 200.
Referring to fig. 1 and 2, in step 103, a mounting cup 200 having an adhesive layer 300 is wrapped in a gasket mold of an injection molding machine. The gasket mold is preferably a reusable 2-part metal mold. Within the gasket mold, there is at least a location adjacent to the recess 201 of the mounting cup 200 for injecting molten material into the cavity between the recess 201 of the mounting cup 200 and the gasket mold, such that the outer gasket 400 is formed on the recess 201 of the mounting cup 200, the recess 201 now having the adhesive layer 300.
Referring to fig. 1 and 2, in step 104, a molten material is injected into a gasket mold by a screw press of an injection molding machine. The molten material may be a rubber, thermoplastic, thermoset, or elastomeric material, which are suitable materials for forming the durable outer gasket 400. The injection molding machine may also include a storage compartment for storing a plurality of pellets corresponding to the molten material and a set of heating elements for melting the pellets into the molten material. The outer gasket 400 is formed when the molten material flows into the gasket mold and occupies the entire cavity between the groove 201 of the mounting cup 200 and the gasket mold. Since the mounting cup 200 preferably has an annular profile, the outer gasket 400 will have an annular shape. Further, since the outer gasket 400 is injection-molded, the outer gasket 400 is fitted to the surface of the groove 201, and thus the outer gasket 400 may have a C-shaped or D-shaped cross section.
The type of injection molding described as forming or shaping the outer gasket 400 in the method of the present invention is overmolding. However, it should be noted that other types of injection molding, such as two-shot molding (two-shot injection moulding), may also be used.
Referring to fig. 1 and 2, in step 105, the mounting cup 200, now also including the molded outer gasket 400, is cooled within the mold prior to removal from the mold. The outer gasket 400 is now chemically bonded to the groove 201 of the mounting cup 200 by the adhesive layer 300 and is preferably permanently bonded to the groove 201 at a fixed location. The mounting cup 200 may then be transferred to other steps in the aerosol nebulizer manufacturing process.
The adhesive layer 300 may be deposited after the outer gasket 400 is formed or molded by injection molding. In so doing, however, the deposited adhesive layer 300 may be non-uniform, which may result in the adhesive layer 300 drying too slowly for a chemical bond to form between the outer gasket 400 and the mounting cup 200. In addition, the outer gasket 400 is required to be undisturbed while the adhesive layer 300 is still being dried or cured. If the adhesive layer 300 is not completely dried or cured, movement on the outer gasket 400 and the adhesive layer 300 may be caused, thereby contaminating other unintended areas of the assembled aerosol sprayer. Therefore, the outer gasket 400 does not perform its sealing function properly, and the smudge may also cause the appearance of the assembled aerosol sprayer to be unattractive and considered to be deficient in quality. The method of the present invention solves all of the above problems.
Fig. 3 shows the relative positioning of the mounting cup 200 resulting from step 105 in an assembled aerosol sprayer. The aerosol sprayer includes an aerosol valve and an aerosol canister 500, the aerosol valve including a mounting cup 200 and a valve stem 600. The mounting cup 200 surrounds one end of the housing for insertion of the valve stem 600. It is further shown that the recess 201 of the mounting cup 200 is located substantially near the rim of the dome portion 501 of the aerosol canister 500 such that the outer gasket 400 seals the aperture of the dome portion 501.
Finally, the method proposed by the present invention forms the outer gasket 400 and secures the outer gasket 400 in a fixed position. Thus, the outer gasket 400 does not deviate from its original position, i.e. the recess 201 of the mounting cup 200, throughout the aerosol sprayer manufacturing process, in particular during the crimping step and the propellant filling step. In addition, the method provides a significantly more efficient and cleaner appearance of the assembled aerosol sprayer.
The disclosure includes what is contained in the appended claims and what is contained in the foregoing description. Although the invention has been described with a certain degree of particularity in its preferred form, it is understood that the present disclosure has been made only by way of example, and that numerous changes in the details of construction and the combination and arrangement of parts may be resorted to without departing from the scope of the invention.
Claims (8)
1. A method for forming and securing an outer gasket (400) around a mounting cup (200) of an aerosol valve, comprising the steps of:
depositing an adhesive layer (400) on a groove (201) formed at the mounting cup (200) using an adhesive deposition unit, the outer gasket (400) to be molded on the groove (201); and
injecting molten material using an injection molding machine to form the outer gasket based on a shape of a gasket mold and the groove (201);
wherein the adhesive layer (300) adheres the outer gasket (400) to the groove (201) when the outer gasket (400) is molded to adhere the outer gasket (400) to the groove (201) of the mounting cup (200).
2. The method of claim 1, wherein the recess (201) is formed around a bottom surface of a rim of the mounting cup (200).
3. The method according to claim 1 or 2, wherein the adhesive layer (400) is in the form of a fluid.
4. The method according to any of the preceding claims, further comprising the step of allowing the adhesive layer (400) to dry.
5. The method of claim 4, wherein the adhesive layer (400) is allowed to dry for 5 to 10 minutes.
6. The method according to any of the preceding claims, wherein the outer gasket (400) is formed by an over-molding process, wherein the gasket mold comprises at least a location adjacent to the groove (201) for injecting the molten material into a cavity between the groove (201) and the gasket mold.
7. The method of any of the preceding claims, wherein the molten material is a thermoplastic, thermoset, or elastomeric material.
8. An aerosol valve comprising
A mounting cup (200) surrounding one end of the housing, a valve stem (600) being inserted at the mounting cup (200);
wherein the mounting cup (200) has an outer gasket (400) formed by the method according to any one of claims 1 to 7.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI2021003571 | 2021-06-24 | ||
| MYPI2021003571 | 2021-06-24 | ||
| PCT/MY2021/050114 WO2022271005A1 (en) | 2021-06-24 | 2021-11-30 | Method for forming and securing a gasket on a mounting cup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117500733A true CN117500733A (en) | 2024-02-02 |
Family
ID=84544675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180099561.XA Pending CN117500733A (en) | 2021-06-24 | 2021-11-30 | Method for forming and fixing gasket on mounting cup |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117500733A (en) |
| WO (1) | WO2022271005A1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8808890D0 (en) * | 1988-04-15 | 1988-05-18 | Grace W R & Co | Container closure caps & compositions for forming gaskets for them |
| WO1992001609A1 (en) * | 1990-07-18 | 1992-02-06 | Precision Valve Corporation | A multi-layer gasket for an aerosol container closure |
| ZA929466B (en) * | 1991-12-26 | 1993-06-10 | Precision Valve Corp | A dimpled gasket. |
| JP2626464B2 (en) * | 1993-04-28 | 1997-07-02 | 東洋製罐株式会社 | Method for forming gasket of mauten cup for aerosol container |
| JP2001139074A (en) * | 1999-11-11 | 2001-05-22 | Toyo Seikan Kaisha Ltd | Method for mounting gasket on mounting cup |
| EP2173502B1 (en) * | 2007-07-27 | 2010-12-29 | Crebocan Ag | Can body and process and device for producing it |
| US9086150B2 (en) * | 2013-01-24 | 2015-07-21 | Federal-Mogul Corporation | Elastomeric shaft seal formed without oven post curing |
| JP6696738B2 (en) * | 2015-06-29 | 2020-05-20 | Nok株式会社 | Manufacturing method of substrate integrated gasket |
| EP3657051B1 (en) * | 2018-11-21 | 2021-06-30 | W.L. Gore & Associates, Inc. | Sealing element and method of manufacture of a sealing element |
-
2021
- 2021-11-30 WO PCT/MY2021/050114 patent/WO2022271005A1/en active Application Filing
- 2021-11-30 CN CN202180099561.XA patent/CN117500733A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022271005A1 (en) | 2022-12-29 |
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