CN116552984A - Bottle cap and preparation method thereof - Google Patents
Bottle cap and preparation method thereof Download PDFInfo
- Publication number
- CN116552984A CN116552984A CN202310618031.2A CN202310618031A CN116552984A CN 116552984 A CN116552984 A CN 116552984A CN 202310618031 A CN202310618031 A CN 202310618031A CN 116552984 A CN116552984 A CN 116552984A
- Authority
- CN
- China
- Prior art keywords
- suction nozzle
- bottle cap
- plastic
- mold
- die
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 55
- 229920003023 plastic Polymers 0.000 claims abstract description 55
- 238000001746 injection moulding Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 48
- -1 polyethylene Polymers 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 235000013361 beverage Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000011496 sports drink Nutrition 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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
- B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
The invention discloses a bottle cap and a preparation method thereof. The preparation method of the bottle cap comprises the following steps: s1, adopting first plastic to perform injection molding to form a suction nozzle, wherein the suction nozzle is provided with a horizontal part which is matched with the upper surface of a bottle opening, a suction nozzle part and a fastening flange, and the fastening flange is positioned above the horizontal part by a certain distance; s2, placing the suction nozzle into a mold or keeping the suction nozzle in the mold, and adopting a second plastic injection molding to form a bottle cap main body, wherein the bottle cap main body comprises a fixing piece capable of being connected to a bottle opening of a bottle and a flip cover capable of being turned over relative to the fixing piece, the flip cover is connected to the fixing piece through a hinge part, the flip cover is provided with a closed position and an open position, a horizontal part and a part of the suction nozzle part are wrapped in the fixing piece, and a part of the fixing piece is embedded between a fastening flange and the horizontal part; the first plastic has a hardness less than the hardness of the second plastic. The bottle cap prepared by the invention has better firmness and tightness.
Description
Technical Field
The present invention relates to a bottle cap which can be fixed to an opening of a container such as a beverage, for closing the opening and for conveniently opening the opening, and a method of manufacturing the same.
Background
The bottle cap with the suction nozzle is applied to containers such as beverage bottles, and a consumer can drink the beverage in the bottle conveniently. Most of the bottle caps adopt flip-type bottle caps, and the suction nozzle can be conveniently sealed or exposed. One type of flip top closure that has been known includes a spout and a body with a flip top that is typically attached to the mouth of the bottle, the spout being disposed on the body and capable of being closed or exposed by the flip top. When the bottle cap is manufactured, the suction nozzle and the main body are respectively formed, then the flip cover is turned to the closed position, and then the suction nozzle is inserted into the main body by means of a tool, so that the suction nozzle and the main body are assembled to form the complete bottle cap. The flip-top cap with this structure has the following drawbacks: the suction nozzle is easy to fall off from the bottle cap main body when being pressed, and even the situation is likely to occur in the process of covering the flip cover; the assembly of the suction nozzle and the main body is inconvenient, manual assembly may be required, the flip must be closed before the suction nozzle is inserted, the connection between the suction nozzle and the main body is not firm enough, besides the problem of easy detachment, poor sealing performance may be caused, for example, the possibility that the suction nozzle is askew is caused, and liquid leakage may be caused.
Disclosure of Invention
The invention provides a novel preparation method of a bottle cap, and the prepared bottle cap has better firmness and tightness. The invention also provides a bottle cap prepared by the preparation method.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a preparation method of a bottle cap comprises the following steps:
s1, adopting first plastic to perform injection molding to form a suction nozzle, wherein the suction nozzle is provided with a horizontal part matched with the upper surface of a bottle opening, a suction nozzle part extending upwards from the horizontal part and a fastening flange extending outwards from the suction nozzle part in a radial direction, and the fastening flange is positioned above the horizontal part by a certain distance;
s2, placing the suction nozzle into a mold or keeping the suction nozzle in the mold, and adopting a second plastic injection molding to form a bottle cap main body, wherein the bottle cap main body comprises a fixing piece capable of being connected to a bottle opening of a bottle and a flip cover capable of being turned relative to the fixing piece, the flip cover is connected to the fixing piece through a hinge part capable of elastically deforming, the flip cover is provided with a closing position for shielding the suction nozzle and an opening position for separating the suction nozzle, the horizontal part of the suction nozzle and a part of the suction nozzle are wrapped in the fixing piece, and a part of the fixing piece is embedded between the fastening flange and the horizontal part;
the first plastic has a hardness less than the hardness of the second plastic.
Herein, "hardness" is used to characterize the degree of deformation of a material upon exposure to pressure, with a lower hardness indicating a greater degree of deformation of the material upon exposure to pressure.
In a preferred embodiment, the first plastic is polyethylene and the second plastic is polypropylene.
In a preferred embodiment, the fastening flange has a radial dimension which is smaller than the radial dimension of the horizontal portion.
In a preferred embodiment, the suction nozzle further has an inner sealing edge adapted to the inner side of the bottle mouth and an outer sealing edge adapted to the outer side of the bottle mouth, the inner sealing edge extending downward from the horizontal portion, the outer sealing edge extending downward from the horizontal portion, and the outer sealing edge being disposed at the periphery of the inner sealing edge.
In a preferred embodiment, the bottom of the outer sealing edge is higher than the bottom of the inner sealing edge, the outer sealing edge being offset from the peripheral edge of the horizontal portion by a distance.
More preferably, a lower surface of the horizontal portion located inside the outer sealing edge is exposed while the other portions are covered with the second plastic, and a portion of the outer sealing edge is covered with the second plastic.
In a preferred embodiment, at least the lower surface of the fastening flange is covered by the second plastic.
In a preferred embodiment, in step S1, a male mold and a first female mold are clamped to form a first mold cavity, and a first plastic is injected into the first mold cavity to form the suction nozzle;
in step S2, the suction nozzle is held in the male mold, the male mold and the second female mold are closed to form a second mold cavity, and a second plastic is injected into the second mold cavity to form the bottle cap main body.
In an alternative embodiment, the nozzle is molded using a single-shot injection molding machine and then placed into the mold of another injection molding machine as an insert, which is integrally molded.
In a more preferred embodiment, in step S2, the male mold is rotated by a set angle and then clamped with the second female mold.
In a preferred embodiment, the preparation method is specifically as follows:
s101, clamping a first male die and a first female die to form a first die cavity, and clamping a second male die and a second female die to form a second die cavity, wherein a suction nozzle is arranged in the second die cavity; injecting first plastic into the first die cavity to form a suction nozzle in the first die cavity, and injecting second plastic into the second die cavity to form a bottle cap main body covering the suction nozzle;
s102, opening a mold;
s103, turning the flip cover in the second male die to a closed position;
s104, the bottle cap main body in the first male die is kept in the first male die, and the bottle cap in the second male die is ejected out;
s105, rotating the die holder by 180 degrees to enable the first male die and the second male die to exchange positions, closing the first male die and the second female die to form a second die cavity, and closing the second male die and the first female die to form a first die cavity; injecting second plastic into the second die cavity to form a bottle cap main body which is covered by the suction nozzle, and injecting the second plastic into the first die cavity to form the suction nozzle in the first die cavity;
steps S101 to S105 are sequentially and cyclically performed.
The invention also adopts the following technical scheme:
a bottle cap prepared by the preparation method.
Compared with the prior art, the invention has the following advantages:
according to the preparation method of the bottle cap, the soft first plastic is adopted to form the suction nozzle through injection molding, then the suction nozzle is placed into the mold, the hard second plastic is adopted to form the bottle cap main body through injection molding, the material of the formed bottle cap main body is directly coated on the suction nozzle and is tightly combined with the suction nozzle, the joint firmness of the bottle cap main body and the suction nozzle is high and tight, the risk of accidental falling of the suction nozzle is eliminated, and the perpendicularity and the position degree of the suction nozzle are superior to those of the traditional assembled bottle cap due to integral molding, so that better sealing performance is provided, the forming processing is convenient, and the labor is saved due to the fact that the bottle cap main body is molded by an injection molding machine.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a structural view of a suction nozzle according to the present invention;
fig. 2 is a schematic view of a closure according to the present invention, wherein the flip cap is in an open position;
FIG. 3 is a schematic view of a closure according to the present invention with the flip cap in a closed position;
FIG. 4 is a schematic view of a closure according to the present invention, wherein the flanges are turned upwards;
fig. 5 is a schematic flow chart of a method for manufacturing a bottle cap according to an embodiment of the present invention.
1, a bottle cap main body; 11. a suction nozzle; 111. a horizontal portion; 112. a suction part; 113. a fastening flange; 114. an inner sealing edge; 115. an outer sealing edge; 12. a fixing member; 13. flanging; 14. an anti-theft tear strip; 15. an anti-theft tearing ring; 2. a flip cover; 21. a container; 3. a hinge portion;
4. a first male die; 5. a second male die; 6. a first master mold; 7. and a second master mold.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1 to 4, the present embodiment provides a bottle cap including a cap body 1. The closure body 1 is capable of being attached to the mouth of a bottle and has a mouthpiece 11 capable of communicating with the bottle, typically a beverage bottle.
Further, the closure body 1 comprises a fixing member 12 and a flip-top 2 which is capable of being flipped over relative to the fixing member 12. Specifically, the fixing member 12 is annular and can be attached to the mouth of a bottle, and the mouthpiece 11 is elastic and communicates with the inside of the bottle. The fixing piece 12 is matched with the bottle mouth of the bottle, and the inner wall of the fixing piece is provided with internal threads, so that the bottle can be screwed on the bottle mouth of the bottle. The fixing piece 12 and the suction nozzle 11 are integrally arranged, specifically, the fixing piece 12 and the suction nozzle 11 are integrally injection molded, the preparation process is simple, and other additional assembly is not needed.
The flip 2 is connected to the fixing member 12 through the hinge portion 3 capable of elastic deformation, and the flip 2 can be flipped around the hinge portion 3 with respect to the fixing member 12 due to the small thickness of the hinge portion 3.
The flip cover 2 has a closed position (as shown in fig. 3) in which it shields the suction nozzle 11 and an open position (as shown in fig. 2) in which it is disengaged from the suction nozzle 11. When the flip cover 12 is in the open position, liquid (e.g., sports drink) in the bottle can flow out; when the flip cover 12 is in the closed position, the mouthpiece 110 is closed and the liquid in the bottle is enclosed and cannot flow out. A receiving groove 21 is formed in the flip cover 2, which is matched with the suction nozzle 11, and the suction nozzle 11 is positioned in the receiving groove 21 when the flip cover 2 is in the closed position.
As shown in fig. 1 and 2, the suction nozzle 11 has a horizontal portion 111 adapted to the upper surface of the bottle mouth, a nozzle portion 112 extending upward from the horizontal portion 111, and a fastening flange 113 extending radially outward from the nozzle portion 112, the fastening flange 113 being located above the horizontal portion 111 by a distance, and the radial dimension of the fastening flange 113 being substantially smaller than the radial dimension of the horizontal portion 111 and may be smaller than 1/5 of the radial dimension of the horizontal portion 111. The horizontal portion 111 and a part of the nozzle portion 112 of the suction nozzle 11 are covered in the holder 12, and a part of the holder 12 is fitted between the fastening flange 113 and the horizontal portion 111.
Further, the nozzle 11 further has an inner sealing edge 114 adapted to the inner side surface of the bottle mouth and an outer sealing edge 115 adapted to the outer side surface of the bottle mouth, the inner sealing edge 114 extends downward from the horizontal portion 111, the outer sealing edge 115 extends downward from the horizontal portion 111, and the outer sealing edge 115 is disposed at the periphery of the inner sealing edge 114.
Further, the bottom of the outer sealing rim 115 is higher than the bottom of the inner sealing rim 114, and the outer sealing rim 115 is offset from the outer peripheral edge of the horizontal portion 111 by a distance. The lower surface of the horizontal part 111 inside the outer sealing edge 115 is exposed and the other parts are covered with the second plastic, and a part of the outer sealing edge 115 is covered with the second plastic. At least the lower surface of the fastening flange 113 is covered with a second plastic. After the closure is secured to the bottle, for example by screwing onto the bottle neck, the bottle neck is just inserted between the outer sealing rim 115 and the inner sealing rim 114, and the thickness of the bottle neck is slightly smaller than the distance between the outer sealing rim 115 and the inner sealing rim 114, so that the outer sealing rim 115 and/or the inner sealing rim 114 are pressed, thereby being tightly pressed against the inner and outer side surfaces of the bottle neck, and achieving a good seal between the closure and the bottle neck.
The hardness of the fixing piece 12 is larger than that of the suction nozzle 11, and a good sealing effect is achieved by means of soft and hard interference fit. Specifically, the fixing member 12 is made of a first plastic, and the suction nozzle 11 is made of a second plastic. More specifically, the first plastic is polypropylene and the second plastic is polyethylene. The fastening flange 113 and the horizontal portion 111 wrap the fixing member 12 up and down, effectively solving poor bonding between polypropylene and polyethylene. The polypropylene can ensure that the whole bottle cap has certain strength, ensures that the bottle cap is not cracked or deformed in transportation, ensures that the hinge part 3 provides the elastic force required by opening and closing the flip 2, and ensures that the hinge part 3 is not broken when opened and closed for a plurality of times.
The bottle cap main body 1 is provided with an anti-theft tear strip 14, and when the flip cover 2 is turned from the closed position to the open position for the first time, the anti-theft tear strip 14 is broken or deformed. In particular, the tamper evident tear strip 14 and the hinge portion 3 are preferably located on opposite sides of the mouthpiece 11; the connection of tamper evident tear strip 14 to closure body 1 is of reduced thickness design, configured to: when the flip cover 2 is first covered on the suction nozzle 11, the connection part is not broken, and when the flip cover 2 is turned away from the suction nozzle 11 for the first time (i.e. switched from the closed position to the open position), the anti-theft tear strip 14 is extruded by the flip cover 2, so that the connection part is broken, and whether the flip cover 2 is opened for the first time or not and whether the suction nozzle 11 is used for the first time can be easily identified. Once the closure is opened, tamper evident tear strip 14 is broken and cannot be recovered, and it is evident that the closure has been opened.
The bottle cap main body 1 is also provided with an anti-theft tearing ring 15, and when the bottle cap main body 1 rotates relative to the bottle mouth of the bottle, the anti-theft tearing ring 15 is broken. The anti-theft tearing ring 15 is specifically connected to the lower edge of the fixing piece 12, and the connection part is thinned and designed to be hollowed out, so that one or more connection points easy to break are formed. In addition, the anti-theft tearing ring 15 is connected with a flanging 13, and the flanging 13 extends downwards from the lower edge of the anti-theft tearing ring 15 after injection molding; after the closure has been formed, the flange 13 is folded upwards so as to extend obliquely upwards and inwards from the lower edge of the tamper evident tear tab 15. After the bottle cap is assembled on the bottle mouth, the flange 13 is relatively fixed with the bottle, once the bottle cap is rotated, the bottle cap main body 1 and the anti-theft tearing ring 15 relatively rotate, and the connecting point is broken, so that whether the bottle cap is opened for the first time can be easily identified.
Referring to fig. 5, the embodiment also provides a method for manufacturing a bottle cap, which includes the following steps: s1, adopting first plastic injection molding to form a suction nozzle 11; s2, placing the suction nozzle 11 into a mold or keeping the suction nozzle 11 in the mold, and adopting second plastic injection molding to form the bottle cap main body 1. Wherein the hardness of the first plastic is less than the hardness of the second plastic. Specifically, the first plastic is polyethylene, and the second plastic is polypropylene.
The following method is preferably adopted in this embodiment: in step S1, the male mold and the first female mold 6 are closed to form a first cavity, and a first plastic forming nozzle 11 is injected into the first cavity; in step S2, the spout 11 is held in the male mold, the male mold and the second female mold 7 are closed to form a second cavity, and a second plastic is injected into the second cavity to form the bottle cap main body 1. In step S2, the male mold is rotated by a predetermined angle and then clamped with the second female mold 7. In other alternative embodiments, the suction nozzle 11 is molded using a single-color injection molding machine and then placed in a mold of another injection molding machine as an insert, which is integrally molded.
The preparation method specifically comprises the following steps:
s101, closing the first male die 4 and the first female die 6 to form a first die cavity, and closing the second male die 5 and the second female die 7 to form a second die cavity with a suction nozzle 11; injecting first plastic into the first die cavity to form a suction nozzle 11 in the first die cavity, and injecting second plastic into the second die cavity to form a bottle cap main body 1 covering the suction nozzle 11;
s102, opening a mold;
s103, turning the flip cover 2 in the second male die 5 to a closed position;
s104, the bottle cap main body 1 in the first male die 4 is kept in the first male die 4, and the bottle cap in the second male die 5 is ejected out;
s105, the die holder rotates 180 degrees to enable the first male die 4 and the second male die 5 to exchange positions, the first male die 4 and the second female die 7 are matched to form a second die cavity, and the second male die 5 and the first female die 6 are matched to form a first die cavity; injecting a second plastic into the second mold cavity to form a bottle cap main body 1 which is covered by the suction nozzle 11, and injecting a first plastic into the first mold cavity to form the suction nozzle 11 in the first mold cavity;
steps S101 to S105 are sequentially and cyclically performed.
More specifically, in step S105, the first male mold 4 and the second male mold 5 are disposed side by side on the mold base, the mold base is rotatable about a horizontally extending rotation axis, and when the mold base is rotated 180 degrees, the first male mold 4 and the second male mold 5 are interchanged in position. Accordingly, the first master model 6 and the second master model 7 are also arranged side by side.
The bottle cap of the embodiment is characterized in that the fixing piece 12 and the suction nozzle 11 are integrally arranged, so that the process is convenient; the fixing piece 12 is made of polypropylene, the suction nozzle 11 is made of polyethylene, the hardness of the fixing piece 12 is larger than that of the suction nozzle 11, a good sealing effect is achieved through soft and hard interference fit, meanwhile, the inner sealing edge 114 and the outer sealing edge 115 of the suction nozzle 11 are sealed with a bottle mouth through a plunger type, and a good sealing effect is achieved through the soft characteristic of the polyethylene; the fastening flange 113 and the horizontal portion 111 vertically wrap a part of the fixing member 12, effectively solving poor bonding between polypropylene and polyethylene. Because of the integral molding, the verticality and the position of the suction nozzle 11 are superior to those of the traditional assembled bottle cap, thereby providing better sealing performance; the problem of leakage caused by the fact that the suction nozzle is installed askew is effectively avoided.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The above-described embodiments are provided for illustrating the technical concept and features of the present invention, and are intended to be preferred embodiments for those skilled in the art to understand the present invention and implement the same according to the present invention, not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (11)
1. The preparation method of the bottle cap is characterized by comprising the following steps:
s1, adopting first plastic to perform injection molding to form a suction nozzle, wherein the suction nozzle is provided with a horizontal part matched with the upper surface of a bottle opening, a suction nozzle part extending upwards from the horizontal part and a fastening flange extending outwards from the suction nozzle part in a radial direction, and the fastening flange is positioned above the horizontal part by a certain distance;
s2, placing the suction nozzle into a mold or keeping the suction nozzle in the mold, and adopting a second plastic injection molding to form a bottle cap main body, wherein the bottle cap main body comprises a fixing piece capable of being connected to a bottle opening of a bottle and a flip cover capable of being turned relative to the fixing piece, the flip cover is connected to the fixing piece through a hinge part capable of elastically deforming, the flip cover is provided with a closing position for shielding the suction nozzle and an opening position for separating the suction nozzle, the horizontal part of the suction nozzle and a part of the suction nozzle are wrapped in the fixing piece, and a part of the fixing piece is embedded between the fastening flange and the horizontal part;
the first plastic has a hardness less than the hardness of the second plastic.
2. The method of manufacturing a bottle cap according to claim 1, wherein the first plastic is polyethylene and the second plastic is polypropylene.
3. The method of manufacturing a closure according to claim 1, wherein the fastening flange has a radial dimension smaller than the radial dimension of the horizontal portion.
4. The method of manufacturing a closure according to claim 3, wherein the spout further has an inner sealing edge adapted to the inner side of the mouth and an outer sealing edge adapted to the outer side of the mouth, the inner sealing edge extending downwardly from the horizontal portion, the outer sealing edge being disposed at the periphery of the inner sealing edge.
5. The method of manufacturing a bottle cap according to claim 4, wherein the bottom of the outer sealing rim is higher than the bottom of the inner sealing rim, and the outer sealing rim is offset from the outer peripheral edge of the horizontal portion by a distance.
6. The method of manufacturing a bottle cap according to claim 4 or 5, wherein a lower surface of the horizontal portion located inside the outer sealing rim is exposed and other portions are covered with the second plastic, and a portion of the outer sealing rim is covered with the second plastic.
7. The method of manufacturing a bottle cap according to claim 1, wherein at least a lower surface of the fastening flange is covered with the second plastic.
8. The method for manufacturing a bottle cap according to claim 1, wherein in step S1, a male mold and a first female mold are clamped to form a first mold cavity, and a first plastic is injected into the first mold cavity to form the suction nozzle;
in step S2, the suction nozzle is held in the male mold, the male mold and the second female mold are closed to form a second mold cavity, and a second plastic is injected into the second mold cavity to form the bottle cap main body.
9. The method of manufacturing a bottle cap according to claim 8, wherein in the step S2, the male mold is rotated by a predetermined angle and then is clamped with the second female mold.
10. The method for preparing the bottle cap according to claim 1, wherein the preparation method comprises the following steps:
s101, clamping a first male die and a first female die to form a first die cavity, and clamping a second male die and a second female die to form a second die cavity, wherein a suction nozzle is arranged in the second die cavity; injecting first plastic into the first die cavity to form a suction nozzle in the first die cavity, and injecting second plastic into the second die cavity to form a bottle cap main body covering the suction nozzle;
s102, opening a mold;
s103, turning the flip cover in the second male die to a closed position;
s104, the bottle cap main body in the first male die is kept in the first male die, and the bottle cap in the second male die is ejected out;
s105, rotating the die holder by 180 degrees to enable the first male die and the second male die to exchange positions, closing the first male die and the second female die to form a second die cavity, and closing the second male die and the first female die to form a first die cavity; injecting second plastic into the second die cavity to form a bottle cap main body coated by the suction nozzle, and injecting first plastic into the first die cavity to form the suction nozzle in the first die cavity;
steps S101 to S105 are sequentially and cyclically performed.
11. A closure made by the method of any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310618031.2A CN116552984A (en) | 2023-05-29 | 2023-05-29 | Bottle cap and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310618031.2A CN116552984A (en) | 2023-05-29 | 2023-05-29 | Bottle cap and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116552984A true CN116552984A (en) | 2023-08-08 |
Family
ID=87489833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310618031.2A Pending CN116552984A (en) | 2023-05-29 | 2023-05-29 | Bottle cap and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116552984A (en) |
-
2023
- 2023-05-29 CN CN202310618031.2A patent/CN116552984A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8393483B2 (en) | Sealing means for closure with multiple sealing areas | |
| US7398900B2 (en) | Dispensing closure, package and method of manufacture | |
| US9108771B2 (en) | Closures for plastic containers adapted for automated insert molding | |
| CN102123917B (en) | Can end lid and production method thereof, and drink can equipped with the can end lid | |
| JPS58112960A (en) | Sealing element connected to neck section of liquid vessel | |
| CA2580467C (en) | Sealing means for a closure, closure and process | |
| GB2194520A (en) | Dispensing closure | |
| JPH1024942A (en) | Retort-sterilizable container | |
| EP3476760B1 (en) | Cap | |
| US20100102021A1 (en) | Closure | |
| EP1713697B1 (en) | Composite lined closure | |
| CN116552984A (en) | Bottle cap and preparation method thereof | |
| CN210853590U (en) | Clamping-pressing type bottle cap and bottle | |
| CN219822321U (en) | Bottle cap | |
| KR20180034527A (en) | Containers and caps | |
| US20040169045A1 (en) | Application and assembly suited for use as a disposable leak proof child drinking cup | |
| CN114889976B (en) | Bottle cap and forming method thereof | |
| CN209427350U (en) | Secondary seal type cheese takes packing container | |
| EP4282772A1 (en) | Process for producing a closure assembly and closure assembly so obtained | |
| WO2014006418A1 (en) | Container and closure therefor | |
| CN219296112U (en) | Anti-theft folding cover and bottle mouth structure adapting to folding cover | |
| CN215437728U (en) | Double-color soy sauce flip and soy sauce bottle | |
| WO2009131380A2 (en) | Sealing cap for a container | |
| JP4161549B2 (en) | Cap for liquid paper container | |
| JP4236310B2 (en) | Easy-opening inner stopper and container lid with easy-opening inner stopper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |