STRUCTURALLY FILLED DOUBLE-SHELLED RECYCLABLE WATER BOTTLE. PRODUCTION METHOD

Abstract

The invention is for the transportation, storage and use of drinking or spring water in water dispensers. It relates to a structured double-shell reusable water bottle and its production method. The water bottle consists of an inner polymeric shell (2) surrounding the water, an outer polymeric shell (1) and two structural filler material located between the shell along the shoulder, side body and base regions (3) It contains the filler material (3), which forms a mechanical bond between the inner shell (2) and the outer shell (1) in the hardened state. By providing load transfer, it enables the shells to form a sandwich body that carries the load together. External in production. The preform (4) is inflated to form the outer shell (1); the target inner shell is formed according to the inner geometry of the outer shell. The geometry and initial inflation gas amount are determined. The inner preform (6) is inflated inside the outer shell, pilot During production, the inflation parameters are calibrated by measuring the actual distance between the shells, and the determined production time is then used. The recipe is applied again in mass production. The space between the shells (7) is filled with filling material (3) A structural core is formed by filling it. A volume of approximately 19 liters is preferred in some applications. one of them.

Description

TARIFF STRUCTURALLY FILLED DOUBLE-SHELLED RECYCLABLE WATER BOTTLE. PRODUCTION METHOD Technical Area The invention relates to the storage, transportation, distribution of drinking and spring water and water dispensers. This relates to reusable water bottles intended for return use. The invention specifically concerns an inner polymeric shell (2) surrounding the drinking water, outside of the said inner shell. an outer polymeric shell (1) and a filler material (3) located between the two shells load together. It is related to a structural sandwich body. One of the preferred applications of the invention is a water dispenser bottle with a volume of approximately 19 liters;10 However, this invention can also be applied to water bottles of different sizes. The invention also involves the target interior based on the internal surface geometry of the pre-formed outer shell (1). Determining the shell geometry, calibrating the inner preform (6) according to the target geometry in question. by inflating the interstitial space (7) with the inflation parameters in a repeatable manner the production method for creating and filling this gap with filling material (3)15 It includes. State of the Art The water bottles used in water dispensers mostly have a single-walled polymeric body structure. They are manufactured. These structures handle transportation, unloading, stacking, dispensing, washing, and refilling. the mechanical loads that occur during this process are mainly borne by a single polymeric wall20 is required. In single-walled structures, the wall thickness is increased by the polymer used in order to improve the body strength. It may be necessary to increase the amount or the reinforcement geometries on the body. The same polymeric mechanical strength, impact resistance, hygiene, wash resistance, surface durability and economical production of the wall. It is expected to meet various requirements simultaneously.25 Double-walled container and panel structures with insulating, foamed, or structural material between the walls. It is known in various technical fields. However, in a reusable water dispenser bottle, both the inside and outside... polymeric shells through a structural core along the shoulder, lateral body and base regions mechanically working together and the inner shell targeting the outer shell within a pre-formed outer shell. Creating a system suitable for mass production while maintaining distance eliminates separate production and body design problems.30 is giving birth. Purpose of the Invention The primary aim of the invention is to ensure that the mechanical functions of the water bottle are accomplished by a single thick polymeric wall. Instead of loading, the inner shell (2), the outer shell (1) and the structural filling located between these shells The aim is to enable the material (3) to carry the load together.35 1 Other purposes of the invention include increasing the water bottle's resistance to drops, transportation, bending, and twisting. to enable polymeric shells to share the load-bearing function with the structural core, external To distribute the local loads on the shell over larger surfaces, the inner shell in contact with water becomes smooth and to ensure it has a cleanable surface, the inner and outer shells are made of the same or different polymers enabling production from materials, in addition to the mechanical function of the filler layer, provides heat... to enable the reduction of light transfer and transmission and to calculate the distance between target shells, The goal is to ensure that the product is obtained repeatably through calibration and mass production recipes. Explanation of the Figures Figure 1 shows the general view of the water jug, which is the subject of the invention, in half-view and half-section. It shows.10 Figure 2 shows the production method of the water jug, which is the subject of the invention, in stages (a), (b), (c) and (d). This is a schematic technical drawing. Explanation of References in Figures 1: Outer shell 2: Inner shell 15 3: Filler material 4: Outer preform 5: Inflation mold 6: Inner preform 7: Interstitial space20 8: Support mold 9: Injection nozzle Detailed Description of the Invention The invention consists of a water jug, an outer shell (1), and an inner shell (1) inside the outer shell. It consists of a shell (2) and the filling material (3) between the two shells.25 The inner shell (2) is the outer shell that directly surrounds the drinking or spring water in the water dispenser and is in contact with the water. The outer shell (1) is the shell that comes into contact with the external environment and the mechanical effects from the outside. It is the shell that greets you. There is an interstitial space (7) between the inner shell (2) and the outer shell (1). Preferred In practice, this gap continues along the shoulder, side body, and base areas of the water bottle. Thus,30 The filling material (3) is located between the opposing surfaces of the inner and outer shells in these regions, forming the shell. It forms a structural core throughout. 2 In a preferred application, the interstitial space (7) is approximately 6 to 8 millimeters. It can be created, and in a sample application, a net distance of approximately 7 millimeters can be targeted. This net distance... This distance refers to the distance between the outer surface of the inner shell (2) and the inner surface of the outer shell (1). The values ​​are for illustrative purposes only and may vary depending on the water bottle geometry, shell materials, They can be selected differently depending on the shell thickness and the properties of the filling material.5 The filling material (3) will form a fluid, pumpable or foam in the space between the shells (7). can be delivered in a reactive state and harden, set, polymerize, foam, or after application. It is a material that achieves volumetric stability in another way. The filler material (3) comes into contact with the inner shell (2) and outer shell (1) surfaces when it hardens. will limit the relative displacement of the shells and the transfer of mechanical loads between the shells.10 It is structured in such a way as to provide the local mechanical effects on the outer shell (1) filling material. (3) can be distributed over a wider surface and by maintaining the distance between the shells. The rigidity of the body against bending and buckling can be increased. If the filling material (3) has low thermal conductivity, the structural core also has heat It can act as a layer that reduces transfer. The low light transmittance of the filler material (3)15 In this way, the amount of light reaching the water inside the bottle from the external environment can be reduced. These features are structural. The core has secondary technical effects, and the outer shell may also be opaque or specially colored. It is not mandatory. Shell Materials The inner shell (2) and the outer shell (1) can be made of the same polymeric material or different polymeric materials. It can also be made from materials. The inner shell (2) is in direct contact with water, therefore the relevant food and drinking water It is made from a polymeric material that meets the contact requirements. In a preferred application, the inner shell (2) and outer shell (1) are made of polyethylene terephthalate. Other In an application, the inner shell (2) and outer shell (1) are in the appropriate class in terms of food contact. It can be formed from polymethyl methacrylate.25 In another application, the inner shell (2) is made of polyethylene terephthalate and the outer shell (1) is made of polymethyl methacrylate. is created. The invention is not limited only to the specified polymers; it also includes food contact, mechanical properties and Other suitable polymeric materials can also be used in terms of the production method to be applied. Filling Materials Within the scope of the invention, the filling material (3) can fill the space between the shells (7) and harden30 In this case, different materials can provide mechanical load transfer between the inner shell (2) and the outer shell (1). It can be formed from various systems. The filling system can consist of a single material or multiple components. It may include. 1. Rigid closed-cell polyurethane foam. 2. Phenolic foam.35 3. Urea-based or polyurea-silicate-based foam. 4. Foamed or synthetic filler containing acrylic resin and thermoplastic microspheres. 3 5. Foamed or synthetic fillers containing polyurethane and thermoplastic microspheres. 6. Silicate-based resin or silicate-based foam. 7. Epoxy-based foam. 8. Acrylic or polymethyl methacrylate-based foam. 9. Silicone-based foam.5 10. Structural polyurethane or integral polyurethane foam. 11. Lime-based foamed mineral filler. 12. Filling containing polyester resin and microspheres. 13. Foamed geopolymer. 14. Filling containing vinylester resin and microspheres.10 15. Cellular cement or foamed mineral mortar. 16. Hybrid lightweight mineral core containing fired clay or metakaolin, expanded perlite, and mineral binder. The preferred mineral core application filler material (3) is baked clay or metakaolin, It contains expanded perlite and mineral binder, and a suitable polymeric modifier in small amounts when required. An additive can be added. This core has low density, sufficient mechanical rigidity and low thermal conductivity.15 It can be formulated to achieve these properties together. The filling material (3) is not intended to come into direct contact with drinking water during normal use. However, considering the possibility of damage occurring in the inner shell (2), the preferred filling in applications the relevant health and migration requirements of fully cured filler material It is preferable to create it from components that will provide.20 Production Method In the production of the water bottle which is the subject of the invention, the outer preform (4) is prepared first and the blow mold (5) The outer shell (1) is inflated under suitable temperature, stretching and inflation conditions to obtain its final geometry. is created. Then the target geometry to be used in creating the inner preform (6) is determined. For this purpose25 The inner surface geometry of the pre-formed outer shell (1) is taken as a reference and from that surface The theoretical target inner shell is positioned inwards to the desired net distance between the shells. Its geometry is created using mathematical or computer-aided geometric methods. The surface area and closed envelope volume of the target inner shell geometry are calculated. The calculated surface area... area, the targeted average wall thickness of the inner shell (2) and the density of the polymeric material used30 It can be used to determine the initial material quantity of the inner preform (6) taking into consideration. For the inner and outer shells, assuming the same material and approximately the same average wall thickness are used. The initial approximation of the required polymer quantities can be determined based on the ratio of the surface areas of the respective shells. 4 In an example geometric modeling, the reference surface area of ​​the outer shell is approximately 0.421 square meters. The target inner shell surface area, shifted inward by 7 millimeters, was calculated to be approximately 0.392 square meters. If this is accepted, the ratio of the inner shell surface area to the outer shell surface area is approximately 0.93. Similarly, A total of approximately 500 grams of polymer for both shells, aiming for the same average wall thickness. If used, the initial estimate is approximately 259 grams for the outer shell and approximately 2415 grams for the inner shell. It gives the amount of polymer in grams. These values ​​are representative and the actual preform grammages will vary depending on the neck region and wall. Its dispensing is calibrated according to mechanical targets and the actual water bottle geometry. The closed envelope volume of the target inner shell is the amount of initial blowing gas to be applied to the inner preform (6). It is also used in determining the inner surface of the outer shell. In an example geometric model, the inner surface of the outer shell is enclosed by... If the reference volume is calculated as 21.34 liters and the target inner shell's outer envelope volume as 19.00 liters, then the target inner shell is 10. The ratio of the volume to the external reference volume is approximately 0.89. This is based on the same reference pressure and temperature. For normalized inflation gas quantities, this ratio can be used as an initial coefficient. The gas... Because it is compressible, the final process is not solely dependent on volume ratio; inflation pressure, gas It is calibrated along with flow rate, temperature, stretching action, and inflation time. Calibration of Production Parameters and Mass Production Recipe15 Inner preform (6), calculated initial inflation gas amount and initial inflation parameters It is inflated inside the pre-formed outer shell (1) using. The inflation process is done on the outside of the inner shell (2). There will be no general superficial contact with the inner surface of the shell (1) and the shoulder, side body and base regions It is carried out in such a way that an interstitial space (7) will be formed along the shells. The actual difference between the inner shell (2) and the outer shell (1) formed during the initial production or pilot calibration phase20 The net distance is checked in predetermined measurement zones. The measured distance must be less than the target value. If it is larger than the target value, it will increase the final volume of the inner shell; if it is smaller than the target value, it will increase the final volume of the inner shell. The mass or normalized amount of inflation gas that will reduce the final volume of the inner shell. The inflation pressure, gas flow rate, inflation time, preform temperature distribution, and stretching are adjusted as needed. At least one of its movements is adjusted.25 The measurement and correction process in question is the production accepted as the gap between the target shells (7). This can be repeated until the desired result is obtained within the tolerances. The amount of gas required to achieve the target geometry and Other blowing parameters include the outer shell geometry used and the calibrated production of the inner preform. It is recorded as a recipe. The series is carried out with the same geometry, material and preform specifications. By applying this recipe again in production, the same target inter-shell distance is achieved in thousands of water bottles.30 It can be generated in a repeatable manner. In this method, theoretical geometric calculations provide the initial values ​​for the production process; serial The precise values ​​used in production are determined by calibration based on pilot production results. Thus... The production method does not rely solely on a theoretical gas-to-volume ratio, but also on the actual inflation behavior. takes into consideration.35 Filler Application After the inner shell (2) is brought to the target geometry, the intershell space (7) is filled with filling material (3) It is filled. If a double shell structure is required during the filling application, it is placed inside the support mold (8). It can be held in place. The support mold (8) protects the outer shell (1) during the application or expansion of the filling material. It can limit unwanted outward deformation. If necessary, controlled gas or air pressure is applied within the inner shell (2) to fill it. During the application of the material (3), the inward deformation of the inner shell (2) can be reduced. The filler material (3) is injected into the interstitial space (7) via an injection nozzle (9) in the example application. is delivered. However, the delivery of the filling material into the cavity depends on a specific nozzle type or a single nozzle. It is not dependent on the feeding direction. Depending on the material used after filling the interstitial space (7) of the filler material (3),10 It hardens, sets, polymerizes, or foams, thus acquiring its stable structure. Hardened filler material. (3) provides mechanical connection and load transfer between the inner shell (2) and the outer shell (1), thus forming a sandwich body. It creates. In a preferred production application, the filling material (3) is below the interstitial space (7) can be conveyed upwards from the section and the air in the space during filling is removed from the upper section15 This allows for evacuation. This technique is preferred to reduce the likelihood of voids or air pockets forming. This is an established practice, and the application of the invention is not limited to this filling aspect. Application Method in Industry The invention concerns water dispensers that can be mass-produced in drinking and spring water filling and distribution systems. and usable. The invention is particularly applicable to reusable water bottles used in water dispensers.20 It is suitable and approximately 19 liters volume is one of the preferred applications; different volumes are available. This can also be applied to water bottles. Target inner shell geometry, preform weight, and initial blow molding parameters during production. This can be determined by computer-aided calculation; the distance between the shells is measured in pilot production to determine the process. The prescription can be calibrated. The calibrated prescription is repeated on the automatic or semi-automatic inflation line. applicable. Following the creation of the inner and outer shells, the filling is applied automatically or semi-automatically. This can be done at the production station. During production, the distance between the shells, the total product weight, Parameters such as filler quantity, body deformation, and leak tightness can be controlled. The produced... Water dispensers are portable, refillable, and suitable for use in water distribution systems and convenient water fountains.30 available. 6

Claims

REQUESTS 1. The invention is for the transportation, storage and use of drinking or spring water in water dispensers. It is a structured, reusable water bottle, characterized by its inner polymeric layer surrounding the drinking water. shell (2), outer polymeric shell (1) located outside the inner shell (2), inner shell (2) and outer shell (1) between the shells that continue along the shoulder, side body and base regions of the water bottle5 with the inner shell (2) which fills the space (7) and the interstitial space (7) in question. by contacting the outer shell (1) surfaces and providing mechanical load transfer between these shells containing structural filler material (3) and outer shell (1), inner shell (2) with filler material (3) It is the creation of a sandwich body that carries the load together.

2. According to claim 1, it is a water bottle, and its characteristic is that the inner shell (2) and the outer shell (1) are made of polyethylene terephthalate10 is the creation of.

3. According to claim 1, it is a water dispenser, and its characteristic is that the inner shell (2) and the outer shell (1) are made of polymethyl methacrylate. is the creation of.

4. According to claim 1, it is a water dispenser, and its characteristic is that the filling material is (3) rigid closed-cell polyurethane foam. that is.15 5. According to claim 1, it is a water dispenser and its characteristic is that the filling material is (3) phenolic foam.

6. According to claim 1, it is a water dispenser and its characteristic is that the filling material is (3) urea-based or polyurea-silicate based. It is foam.

7. According to claim 1, it is a water dispenser, and its characteristic is that the filling material is (3) acrylic resin with thermoplastic. It is a foamy or synthetic filler containing microspheres.20 8. According to claim 1, it is a water dispenser, and its characteristic is that the filling material is (3) polyurethane and thermoplastic. It is a foamy or synthetic filler containing microspheres.

9. According to claim 1, it is a water dispenser, and its characteristic is that the filling material is (3) silicate-based resin or silicate. It is essentially a foam.

10. According to claim 1, it is a water dispenser and its characteristic is that the filling material is (3) epoxy-based foam.25 11. According to Claim 1, it is a water dispenser, and its characteristic is that the filling material is (3) acrylic or polymethyl methacrylate. It is essentially a foam.

12. According to claim 1, it is a water dispenser and its characteristic is that the filling material is (3) silicone-based foam.

13. According to Claim 1, it is a water dispenser, and its characteristic is that the filling material is (3) structural polyurethane or integral It is polyurethane foam.30 14. According to Claim 1, it is a water dispenser and its characteristic is that the filling material is (3) lime-based foamed mineral filling. It is the fact that.

15. According to claim 1, it is a water dispenser, and its characteristic is that the filling material is (3) polyester resin with microspheres. It contains a filler.

16. According to claim 1, it is a water dispenser and its characteristic is that the filling material is (3) foamed geopolymer.35 17. According to claim 1, it is a water dispenser, and its characteristic is that the filling material is (3) vinylester resin with microspheres. It contains a filler. 7 18. According to Claim 1, it is a water dispenser, and its characteristic is that the filling material is (3) cellular cement or foamed It is a mineral mortar. According to Claim 19, it is a water dispenser, and its characteristic is that the filling material is (3) baked clay or metakaolin, It is a hybrid lightweight mineral core containing expanded perlite and mineral binder.

20. According to claim 1, it is a water dispenser, and its characteristic is that the inner shell (2) is made of polyethylene terephthalate and the outer shell (1)5 It is made of polymethyl methacrylate.

21. The invention is a method for manufacturing a double-shelled water jug ​​used for drinking or spring water. Its feature is that the outer shell (1) has its final geometry after being blown into the blow mold (5) of the outer preform (4). the creation of the outer shell (1) inwards according to the inner surface geometry of a predetermined Determining the target inner shell geometry at a distance, the target inner shell geometry in a closed envelope10 Determining the initial inflation gas quantity and inflation parameters depending on the volume, internal Positioning of the preform (6) inside the formed outer shell (1), the inner preform (6) The subject is the amount of gas and inflation parameters used to inflate the inner shell (2) to the inner surface of the outer shell (1). There will be no general superficial contact between the shells and along the shoulder, lateral body and base regions. Inflating it in such a way as to create a void (7), sending the filling material (3) into the inter-shell space (7)15 (3) hardening, setting, polymerization or foaming of the filler material As a result, the structural core provides mechanical load transfer between the inner shell (2) and the outer shell (1) It includes the steps involved in its creation.

22. The production method according to claim 21, its characteristic is; the closed envelope volume corresponding to the target inner shell geometry. According to the determination of the initial inflation gas amount and initial inflation parameters, word20 the actual net distance between the inner shell (2) and the outer shell (1) produced with the initial values ​​of the subject If the measured distance differs from the target distance, the mass of the inflation gas or normalized quantity, inflation pressure, gas flow rate, inflation time, preform temperature distribution and Modifying at least one of the stretching movements ensures the target distance is achieved within the production tolerances. The measurement and correction process must be repeated until the target distance is achieved. parameters as a calibrated production recipe for use in mass production It is the determination of.

23. This is a manufacturing method according to claim 21, characterized by its surface area of ​​the target inner shell geometry. calculation and the amount of polymeric material to be used in the inner preform (6) of the surface in question the area depends on the targeted inner shell wall thickness and the density of the polymeric material used30 It is determined as follows.

24. The production method according to claim 21, its characteristic is; filling material (3) into the space between the shells (7) during application of the outer shell (1), pressure or expansion resulting from the filling application The goal is to keep the support mold (8) in a way that will limit the deformation that may occur as a result.

25. Production method according to claim 21, its characteristic is; filling material (3) into the space between shells (7)35 During application, controlled gas or air pressure is applied inside the inner shell (2) The goal is to reduce the inward deformation of the shell (2). 8

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