Lightweight polymer oval cream bottle and preparation method thereof

Abstract

The present invention relates to a lightweight polymer oval cream bottle and a preparation method thereof, which is designed to solve the technical problems that existing similar products rarely use double-layer bottle bodies and double-layer bottle caps, and parallel trimming structures. The bottle body of the cream bottle includes an inner bottle and an outer bottle, and the bottle cap includes an inner cap and an outer cap, and the inner cap has an inner thread connected to the outer thread of the bottle mouth of the inner bottle; the key points are that the inner bottle and the outer bottle of the bottle body, and the inner cap and the outer cap of the bottle cap are respectively elliptical, and the long arc sides on both sides are respectively and symmetrically provided with parallel trimmings, and when the inner bottle and the outer bottle are correspondingly buckled, the inner bottle step edge of the inner bottle is fitted with the outer bottle step groove of the outer bottle, the buckling ribs of the inner bottle are buckled with the buckling groove of the outer bottle, the positioning ribs of the inner bottle are inserted into the positioning groove of the outer bottle, the stop block of the inner bottle is buckled with the inner buckling groove of the stop buckle groove head of the inner cap, the parallel trimmings on both sides of the bottle body and the bottle cap are aligned, the stop block of the inner bottle is buckled with the inner buckling groove of the stop buckle groove head of the inner cap, and the above-mentioned outer cap is an aluminum oxide outer cap.

Description

Technical Field

[0001] The invention relates to a cream bottle, which is a lightweight polymer elliptical cream bottle and a preparation method thereof. Background Art

[0002] A cream bottle refers to a bottle used for storing and taking out moisturizers or lotions. The bottle body and bottle cap of such bottles are generally made of plastic, and some of the bottle bodies adopt a double-layer bottle body structure. Among them, existing oval cream bottles are widely used in cosmetic packaging. The caps and bottle bodies of conventional cream bottles on the market are made of general plastic raw materials. In actual production, more raw materials are generally used, the weight is large, and it is difficult to degrade. At the same time, the relatively insufficient strength of the material structure also affects the service life of the product, and there are technical defects. Existing cream bottles of this type are disclosed in Chinese patent documents, such as application number 201911397636.3, application publication date 2020.05.05, invention name "Antibacterial and pressure-resistant double-layer cream bottle and its material preparation method"; however, the inner cover and inner bottle structure design of the above-mentioned products and similar products are poor, resulting in poor sealing and firmness of the assembled products as a whole, and it is difficult to assemble and produce accurately. Summary of the invention

[0003] To overcome the above shortcomings, the purpose of the present invention is to provide a lightweight polymer oval cream bottle and a preparation method thereof to the art, so as to solve the technical problems that the double-layer bottle body and the double-layer bottle cap are difficult to be integrally formed and sealed in the existing similar products, the parallel cutting structure is rarely used to achieve the rapid positioning and assembly between the inner cover and the outer cover and between the inner bottle and the outer bottle, and the inner cover and the inner bottle structure need to be further improved. The purpose is achieved through the following technical solution.

[0004] A lightweight polymer oval cream bottle, the bottle body of the cream bottle comprises an inner bottle and an outer bottle, the bottle cap comprises an inner cap and an outer cap, the bottle mouth of the inner bottle is provided with a cover sheet, the top of the inner cap is provided with an adhesive gasket, the inner thread of the cover mouth of the inner cap is connected with the outer thread of the bottle mouth of the inner bottle; the key points of its structural design are that the inner bottle and the outer bottle of the bottle body, and the inner cap and the outer cap of the bottle cap are respectively elliptical, the inner bottle and the outer bottle, and the inner cap and the outer cap have long arc sides on both sides respectively and symmetrically provided with parallel cutting edges; the inner diameter of the bottle mouth of the outer bottle is provided with an outer bottle step groove, and the outer bottle has a plurality of outer caps and a plurality of outer caps. There are buckling grooves symmetrically arranged on both sides of the inner diameter of the bottle mouth below the step groove of the outer bottle, a lower inner ring with a diameter larger than the inner bottle diameter is arranged on the outer diameter below the outer thread of the bottle mouth of the inner bottle, and equidistantly distributed reinforcing ribs are arranged on the inner diameter of the lower inner ring of the inner bottle, the cream groove of the inner bottle protrudes downward and is higher than the lower inner ring of the inner bottle, and a raised inner bottle step edge is arranged at the top ring of the lower inner ring, and buckling ribs are symmetrically arranged on both sides below the inner bottle step edge; while the inner bottle and the outer bottle are buckled correspondingly, the inner bottle step edge of the inner bottle fits with the outer bottle step groove of the outer bottle, and the buckling ribs of the inner bottle are buckled with the buckling groove of the outer bottle. Thus, the buckling ribs are buckled with the buckling groove when the lower inner ring is inserted between the inner bottle and the outer bottle, and the outer bottle step groove and the inner bottle step edge achieve an airtight effect, and the above-mentioned reinforcing ribs are arranged as needed.

[0005] A downwardly protruding positioning rib is provided below the inner bottle step edge on the side of the buckling rib on one side of the inner bottle, and a downwardly extending positioning groove is provided on the side of the outer bottle step groove on the side of the buckling groove on one side of the outer bottle. When the inner bottle and the outer bottle are buckled correspondingly, the inner bottle step edge of the inner bottle fits with the outer bottle step groove of the outer bottle, the buckling rib of the inner bottle fits with the buckling groove of the outer bottle, and the positioning rib of the inner bottle is inserted into the positioning groove of the outer bottle. Thus, the fitting of the inner bottle and the outer bottle is achieved through the directional fitting of the positioning rib and the positioning groove, and can be loaded only after accurate alignment during production and assembly.

[0006] A raised inner bottle limiting rib is provided on one side of the outer diameter of the cream groove of the inner bottle, and an outer bottle limiting rib is provided at the inner bottom end corner of the outer bottle corresponding to the inner bottle limiting rib. When the inner bottle limiting rib of the inner bottle is aligned with the outer bottle limiting rib of the outer bottle, they abut against each other when inserted, and the positioning rib of the inner bottle is misaligned with the positioning groove of the outer bottle. Therefore, the inner bottle and the outer bottle can be fitted and assembled only when the positioning rib of the inner bottle is further aligned with the positioning groove of the outer bottle.

[0007] The outer diameter of the cover opening of the inner cover is provided with an inner cover step edge, and an upper inner ring is provided on one side of the top of the inner cover step edge. The edges of the parallel cut edges of the upper inner ring are symmetrically provided with arc groove edges. The inner cover step edge of the inner cover fits with the cover opening of the outer cover, and the groove at the inner thread of the cover opening of the inner cover protrudes upward and is higher than the upper inner ring of the inner cover. Therefore, when the inner cover and the outer cover are assembled through the upper inner ring, the inner cover step edge of the inner cover and the cover opening of the outer cover are airtight.

[0008] A cover opening groove protruding toward the top is provided between the cover opening of the inner cover and the inner thread of the cover opening, a stop buckle groove head is symmetrically provided in the cover opening groove of the inner cover, the stop buckle groove head is integrally formed with the inner cover through the rear connecting rib, a raised introduction head is provided on one side of the buckle groove of the stop buckle groove head, and a raised stop head is provided on the other side symmetrically of the introduction head, a stop block is symmetrically provided on the top of the lower inner circle below the outer thread of the bottle opening of the inner bottle, and while the cover opening inner thread of the inner cover is connected with the outer thread of the bottle opening of the inner bottle, the stop block of the inner bottle is buckled with the inner buckle groove of the stop buckle groove head of the inner cover, so that the inner cover and the inner bottle can be accurately positioned when screwed together, and the parallel cut edges of the bottle body and the bottle cover on both sides are aligned.

[0009] The outer cover is an aluminum oxide outer cover, and the aluminum oxide outer cover is fixed to the inner cover by glue on the top inner wall, so that the appearance of the outer cover is more beautiful, and the outer diameter of the outer bottle can also be glued to fix the aluminum oxide outer bottle.

[0010] The inner cover is a lightweight polymer inner cover, the inner bottle is a lightweight polymer inner bottle, the lightweight polymer material is made of the following raw materials in parts by weight: 100 parts of high molecular weight polyethylene, 30-20 parts of cellulose nanofibers, 20-10 parts of synthetic rubber, 1-10 parts of CaCl2, 1-2 parts of graphene, and 1-0.1 parts of polyvinyl alcohol. The high molecular weight polyethylene is polypropylene, polyethylene, and polyacrylonitrile-butadiene-styrene. Each raw material is weighed according to a certain amount, and the cellulose nanofibers are mixed in a high-speed mixer in turn with benzene, alcohol, sodium hydroxide solution, acetic acid and hydrogen peroxide mixed solution, and stirred at 70-90°C and 2500r / min for 0. .5-1h to mix evenly, then add the mixture into the reactor and mix again, and blow in nitrogen to remove the oxygen dissolved therein. The polymerization is carried out at 140-195°C, and the reaction residence time is 300-200 minutes. Finally, the mixture is extruded into shape by a twin-screw extruder. The extrusion temperature of zone 1 of the twin-screw extruder is 90-100°C, the extrusion temperature of zone 2 is 110-120°C, and the extrusion temperature of zone 3 is 120-130°C.

[0011] The invention has reasonable structural design, is easy to assemble, produce, use and carry, has good sealing and firmness, and the double-layer structure of the bottle body and the bottle cap increases its service life, and has good impact resistance and drop resistance effects; it is suitable for use as a cream bottle and a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the explosion structure of the present invention.

[0013] Figure 2 It is a cross-sectional structural schematic diagram of the present invention.

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the present invention.

[0015] Figure 4 It is a schematic diagram of the bottle cap structure of the present invention.

[0016] Figure 5 It is a schematic diagram of the explosion structure of the bottle cap of the present invention.

[0017] Figure 6 It is a schematic diagram of the outer bottle structure of the present invention.

[0018] Figure 7 It is a schematic diagram of the bottle explosion structure of the present invention.

[0019] Figure 8 It is a schematic diagram of the inner bottle structure of the present invention.

[0020] Fig. 9 It is a schematic structural diagram of the bottle cap of the present invention in an open state.

[0021] Fig.10 It is a schematic diagram of the three-dimensional structure of the bottle body of the present invention.

[0022] Serial numbers and names of the accompanying drawings: 1. Alumina outer cover, 2. Inner cover, 201. Step edge of inner cover, 202. Upper inner ring, 203. Stop buckle groove head, 204. Cover groove, 3. Adhesive gasket, 4. Cover sheet, 5. Inner bottle, 501. Step edge of inner bottle, 502. Positioning ribs, 503. Buckling ribs, 504. Lower inner ring, 505. Inner bottle limiting ribs, 506. Reinforcing ribs, 507. Stop block, 6. Outer bottle, 601. Step groove of outer bottle, 602. Positioning groove, 603. Buckling groove, 604. Limiting ribs of outer bottle. DETAILED DESCRIPTION

[0023] Now, the structure of the present invention is further described in conjunction with the accompanying drawings. Figure 1-Figure 10 As shown, the bottle body of the cream bottle includes an inner bottle 5 and an outer bottle 6, the bottle cap includes an inner cover 2 and an outer cover, the bottle mouth of the inner bottle is provided with a cover sheet 4, the top inside the inner cover is provided with an adhesive gasket 3, and the inner thread of the cover mouth of the inner cover is connected with the outer thread of the bottle mouth of the inner bottle; the above-mentioned outer cover is an aluminum oxide outer cover 1, and the aluminum oxide outer cover is fixed to the inner cover by gluing on the top inner wall. The inner bottle and outer bottle of the bottle body, and the inner cover and outer cover of the bottle cap are respectively elliptical in shape, and the inner bottle and outer bottle, and the inner cover and outer cover have long arc-shaped sides on both sides correspondingly and symmetrically provided with parallel cut edges; an outer bottle step groove 601 is provided on the inner diameter of the bottle mouth of the outer bottle, and buckling grooves 603 are symmetrically provided on both sides of the inner diameter of the bottle mouth below the outer bottle step groove, a lower inner ring 504 with a diameter larger than the inner bottle diameter is provided on the outer diameter below the outer thread of the bottle mouth of the inner bottle, and reinforcing ribs 506 are equidistantly distributed on the inner diameter of the lower inner ring of the inner bottle, the cream groove of the inner bottle protrudes downward and is higher than the lower inner ring of the inner bottle, and a raised inner bottle step edge 501 is provided on the top ring of the lower inner ring, and buckling ribs 503 are symmetrically provided on both sides below the inner bottle step edge; when the inner bottle and the outer bottle are buckled correspondingly, the inner bottle step edge of the inner bottle fits with the outer bottle step groove of the outer bottle, and the buckling ribs of the inner bottle fit with the buckling groove of the outer bottle.

[0024] At the same time, a downwardly protruding positioning rib 502 is provided below the inner bottle step edge 501 on the side of the buckling rib on one side of the inner bottle, and a downwardly extending positioning groove 602 is provided on the side of the outer bottle step groove on the side of the buckling groove on the side of the outer bottle. When the inner bottle and the outer bottle are buckled correspondingly, the inner bottle step edge of the inner bottle fits with the outer bottle step groove of the outer bottle, the buckling rib of the inner bottle fits with the buckling groove of the outer bottle, and the positioning rib of the inner bottle is inserted into the positioning groove of the outer bottle. The outer diameter of the cover opening of the inner cover is provided with an inner cover step edge 201, and an upper inner ring 202 is provided on one side of the top of the inner cover step edge. The edges of the parallel cutting edges of the upper inner ring are symmetrically provided with arc groove edges, and the inner cover step edge of the inner cover fits with the cover opening of the outer cover. The groove at the inner thread of the cover opening of the inner cover protrudes upward and is higher than the upper inner ring of the inner cover. A cover slot 204 protruding toward the top is provided between the cover opening of the inner cover and the inner thread of the cover opening, and a stop buckle slot head 203 is symmetrically provided in the cover slot of the inner cover. The stop buckle slot head is integrally formed with the inner cover through the connecting ribs at the rear, and a protruding guide head is provided on one side of the buckle slot of the stop buckle slot head, and a raised stop head is provided on the other side of the guide head. A stop block 507 is symmetrically provided on the top of the lower inner ring 504 below the outer thread of the bottle mouth of the inner bottle, and while the inner thread of the cover opening of the inner cover is connected with the outer thread of the bottle mouth of the inner bottle, the stop block of the inner bottle is engaged with the inner buckle slot of the stop buckle slot head of the inner cover. A protruding inner bottle limiting rib 505 is provided on one side of the outer diameter of the cream groove of the inner bottle, and an outer bottle limiting rib 604 is provided at the inner bottom end corner of the outer bottle corresponding to the inner bottle limiting rib. When the inner bottle limiting rib of the inner bottle is aligned with the outer bottle limiting rib of the outer bottle, they are abutted against each other when inserted, and the positioning rib of the inner bottle is misaligned with the positioning slot of the outer bottle, so that the inner bottle cannot be loaded into the outer bottle.

[0025] The assembly method of the cream bottle is as follows: Assemble component A1: apply glue to the top inner wall of the aluminum oxide outer cover, and then insert the inner cover so that its two straight edges automatically snap into place to play a role of orientation and rotation prevention, and then press it down to the bottom so that it is fully in contact and pressed into place; finally, fit one side of the adhesive gasket of the component with the top inner wall of the inner cover to complete the assembly of component A1. Assemble component B1: Align the positioning rib of the inner bottle with the positioning groove of the outer bottle to align them, and then the right-angled edges of the two parts automatically snap into place to play a role of orientation and rotation prevention, and then press them into place with the buckle position, and the assembly of component B1 is completed after fixing. Finished product assembly: First, fit the cover piece with the bottle mouth of the inner bottle in component B1 to complete the assembly, and then screw the outer cover assembly thread of component A1 into the outer bottle assembly thread of component B1. When a "click" sound is heard at the buckle position, the finished product assembly is completed.

[0026] In summary, the cream bottle is an irregular oval cream bottle. On the basis of the threaded matching structure of the cream bottle, multiple buckle positions are added. The "click" sound at the buckle position indicates the opening and closing state. At the same time, the cream bottle is made of lightweight polymer materials. Compared with the traditional oval cream bottle, the product has the advantages of light weight, low production cost, anti-bending, anti-deformation, moderate sales price, reasonable design, long life, and conformity to market characteristics. After the material is made of lightweight polymer materials, the plastic parts of the product are not easy to oxidize and age. After long-term storage or use, the surface color remains the same. The material of the cream bottle is pollution-free during the development process and can be biodegraded. It is light in weight and high in strength. The product is not easy to change color after long-term use and storage, and it will not cause pollution. It has high pressure resistance and is not easy to deform as a whole. The difference from the ordinary oval cream bottle is that after the cream bottle adopts lightweight polymer materials, the connection of each component is more firm, the matching is accurate, the anti-bending and deformation performance is enhanced, and the anti-oxidation performance is enhanced, which is convenient for users to carry, store and use.

Claims

1. A lightweight polymer oval cream bottle, the bottle body of the cream bottle comprises an inner bottle and an outer bottle, the bottle cap comprises an inner cap and an outer cap, the bottle mouth of the inner bottle is provided with a cover sheet, the top of the inner cap is provided with an adhesive gasket, the inner thread of the cover mouth of the inner cap is connected with the outer thread of the bottle mouth of the inner bottle; characterized in that: The inner bottle and outer bottle of the bottle body, and the inner cover and outer cover of the bottle cap are respectively elliptical in shape, and the inner bottle and outer bottle, and the inner cover and outer cover have long arc sides on both sides correspondingly and symmetrically provided with parallel cut edges; the inner diameter of the bottle mouth of the outer bottle is provided with an outer bottle step groove, and the inner diameter of the bottle mouth of the outer bottle below the outer bottle step groove is symmetrically provided with buckling grooves on both sides, and the outer diameter below the outer thread of the bottle mouth of the inner bottle is provided with a lower inner ring with a diameter larger than the diameter of the inner bottle, and the inner diameter of the lower inner ring of the inner bottle is provided with equidistantly distributed reinforcing ribs, the cream groove of the inner bottle protrudes downward and is higher than the lower inner ring of the inner bottle, and the top of the lower inner ring A raised inner bottle step edge is provided at the outer ring opening, and buckling ribs are symmetrically provided on both sides below the inner bottle step edge; when the inner bottle and the outer bottle are buckled correspondingly, the inner bottle step edge of the inner bottle fits with the outer bottle step groove of the outer bottle, and the buckling ribs of the inner bottle fit with the buckling groove of the outer bottle; a downwardly protruding positioning rib is provided below the inner bottle step edge on one side of the buckling rib of the inner bottle, and a downwardly extending positioning groove is provided on one side of the buckling groove of the outer bottle, and when the inner bottle and the outer bottle are buckled correspondingly, the inner bottle step edge of the inner bottle fits with the outer bottle step groove of the outer bottle, and the buckling ribs of the inner bottle fit with The buckling groove of the outer bottle is buckled, and the positioning rib of the inner bottle is inserted into the positioning groove of the outer bottle; a raised inner bottle limiting rib is provided on one side of the outer diameter of the cream groove of the inner bottle, and an outer bottle limiting rib is provided at the inner bottom end corner of the outer bottle corresponding to the inner bottle limiting rib. The inner bottle limiting rib of the inner bottle is aligned with the outer bottle limiting rib of the outer bottle when inserted, and the positioning rib of the inner bottle is misaligned with the positioning groove of the outer bottle; an inner cover step edge is provided on the outer diameter of the cover opening of the inner cover, and an upper inner ring is provided on one side of the top of the inner cover step edge. The inner cover step edge of the inner cover fits with the cover opening of the outer cover, and the groove at the inner thread of the cover opening of the inner cover protrudes upward and is higher than The upper inner ring of the inner cover; a cover opening groove protruding toward the top is provided between the cover opening of the inner cover and the inner thread of the cover opening, a stop buckle groove head is symmetrically provided in the cover opening groove of the inner cover, the stop buckle groove head is integrally formed with the inner cover through the rear connecting rib, a raised guide head is provided on one side of the buckle groove of the stop buckle groove head, and a raised stop head is provided on the other side symmetrically of the guide head, a stop block is symmetrically provided on the top of the lower inner ring below the outer thread of the bottle mouth of the inner bottle, and when the inner thread of the cover opening of the inner cover is connected with the outer thread of the bottle mouth of the inner bottle, the stop block of the inner bottle is buckled with the inner buckle groove of the stop buckle groove head of the inner cover; The inner cover is a lightweight polymer inner cover, the inner bottle is a lightweight polymer inner bottle, and the lightweight polymer is made of the following raw materials in parts by weight: 100 parts of high molecular weight polyethylene, 30-20 parts of cellulose nanofibers, 20-10 parts of synthetic rubber, 1-10 parts of CaCl2, 1-2 parts of graphene, and 1-0.1 parts of polyvinyl alcohol.

2. The lightweight polymer oval cream bottle according to claim 1, characterized in that The outer cover is an aluminum oxide outer cover, and the aluminum oxide outer cover is fixed to the inner cover by glue spotting on the top inner wall.

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