WO2024017166A1 - 包装盒的瓶口封装结构及包装盒 - Google Patents

包装盒的瓶口封装结构及包装盒 Download PDF

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Publication number
WO2024017166A1
WO2024017166A1 PCT/CN2023/107496 CN2023107496W WO2024017166A1 WO 2024017166 A1 WO2024017166 A1 WO 2024017166A1 CN 2023107496 W CN2023107496 W CN 2023107496W WO 2024017166 A1 WO2024017166 A1 WO 2024017166A1
Authority
WO
WIPO (PCT)
Prior art keywords
bottle mouth
packaging box
equal
cutting element
box according
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.)
Ceased
Application number
PCT/CN2023/107496
Other languages
English (en)
French (fr)
Inventor
泽克雷莫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SIG Services AG
SIG Combibloc Suzhou Ltd
Original Assignee
SIG Services AG
SIG Combibloc Suzhou Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN202210843849.XA external-priority patent/CN117446333A/zh
Priority claimed from CN202210845148.XA external-priority patent/CN117446334A/zh
Application filed by SIG Services AG, SIG Combibloc Suzhou Ltd filed Critical SIG Services AG
Priority to JP2025502640A priority Critical patent/JP2025523176A/ja
Priority to US18/993,696 priority patent/US20260008586A1/en
Priority to EP23842229.9A priority patent/EP4559836A4/en
Publication of WO2024017166A1 publication Critical patent/WO2024017166A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
    • B65D5/748—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/006—Non-metallic fasteners using screw-thread
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/02—Shape of thread; Special thread-forms

Definitions

  • the present application relates to the field of packaging, and in particular to a bottle mouth sealing structure of a packaging box and a packaging box.
  • Some current beverage packaging boxes have a bottle mouth on the box body, and a bottle cap is connected to the bottle mouth.
  • a sealing layer is provided on one end of the bottle mouth facing the box body, and the sealing layer is sealed with the top side of the box body.
  • the bottle mouth and the bottle cap are threaded, and a cutting element for cutting the sealing layer is provided inside the bottle mouth.
  • the outer periphery of the cutting element It has external threads, and the inner side of the bottle mouth is provided with internal threads for mating connection with the external threads of the cutting element.
  • the cutting element By driving the cutting element to rotate, the cutting element cooperates with the internal thread of the bottle mouth to move downward while rotating. Since downward rotation requires a certain amount of pressure, in order to enable the cutting element to smoothly move downward with the rotation, the cutting element will be set
  • the threads between the components and the bottle mouth have a certain depth.
  • the cast part needs to be pushed out during demolding. Since the depth of the internal thread of the bottle mouth is large, a greater thrust is required, making demoulding difficult. , and it can also easily lead to deformation of cast parts and increase manufacturing difficulty. Therefore, the above-mentioned problem of difficulty in demolding the bottle mouth pouring parts needs to be solved urgently.
  • This application discloses a bottle mouth sealing structure of a packaging box and a packaging box.
  • the inclination angle of the surface that hinders demoulding is appropriately increased, so that the first internal thread of the bottle mouth is bulged.
  • the surfaces on both sides of the tooth structure have appropriate angles, which is conducive to reducing the resistance during demoulding during the casting molding manufacturing process, allowing smooth demoulding, and is conducive to reducing the wear and undercut of the first internal thread.
  • a bottle mouth sealing structure of a packaging box including:
  • Bottle mouth structure the bottle mouth structure includes a fixing part for fixing to the box body of the packaging box, and a bottle mouth connected to the fixing part, the bottle mouth is located on a side of the fixing part away from the box body side, the bottle mouth has a cylindrical structure, and the inner side of the cylinder wall of the bottle mouth has a first internal thread; any one of the protruding tooth structures of the first internal thread has a first inclined surface and a third one located on both sides of the bottle mouth.
  • the bottom of the recessed structure has a tangent parallel to the axis of the bottle mouth, and there is an angle ⁇ between the first slope and the tangent with the opening facing the fixing part, and the clamp
  • the angle ⁇ is greater than or equal to 110° and less than or equal to 145°, there is an included angle ⁇ between the second slope and the tangent line with the opening facing away from the fixed part, and the included angle ⁇ is greater than or equal to 90°;
  • the cutting element has a cylindrical structure, the cutting element is used to be sleeved in the bottle mouth, and the outer side of the barrel wall of the cutting element has a first thread that is cooperatively connected with the first internal thread. External thread, the cutting element is used to cut the sealing layer on the top side of the box body;
  • Bottle cap the bottle cap is used to cooperate with the bottle mouth and close the opening on the top side of the bottle mouth.
  • the inclination angle of the surface that hinders demoulding is appropriately increased, so that the surfaces on both sides of the raised tooth structure of the first internal thread of the bottle mouth have appropriate angles, which is beneficial to reduce the cost of casting molding manufacturing.
  • the resistance during demoulding during the process enables smooth demoulding and helps reduce the wear and undercut of the first internal thread.
  • the included angle ⁇ is greater than or equal to 120° and less than or equal to 135°.
  • the included angle ⁇ is 125°.
  • the included angle ⁇ is greater than or equal to 100° and less than or equal to 120°.
  • the included angle ⁇ is 110°.
  • the curvature of the top of the raised tooth structure is greater than or equal to 0.15mm.
  • the surface roughness Ra of the first internal thread is less than or equal to 1.00 ⁇ m.
  • the first internal thread is located in the threaded area on the barrel wall of the bottle mouth, and the thread depth of the first internal thread is greater than or equal to 55% of the wall thickness of the threaded area, wherein the first internal thread is The thread depth of an internal thread is: along the same radial direction of the bottle mouth, the dimension from the top side of the protruding tooth structure to the inner wall surface of the bottle mouth.
  • the thread depth of the first internal thread is greater than or equal to 60% of the wall thickness of the threaded area and less than or equal to 130% of the wall thickness of the threaded area.
  • the thread depth of the first internal thread is greater than or equal to 90% of the wall thickness of the threaded area and less than or equal to 110% of the wall thickness of the threaded area.
  • the bottle mouth also has a non-threaded area, the non-threaded area is located on a side of the threaded area away from the fixing part, and the non-threaded area
  • the threaded area is located at the top of the bottle mouth, and the wall thickness of the top side of the non-threaded area is greater than or equal to 75% of the wall thickness of the threaded area.
  • the thread depth of the first internal thread is greater than or equal to 80% of the wall thickness of the top side of the non-threaded area and less than the wall thickness of the top side of the non-threaded area.
  • the outer side of the barrel wall of the bottle mouth has a second external thread; the inner side of the side wall of the bottle cap has a second internal thread for mating connection with the second external thread.
  • a driving structure is provided on the inside of the tube wall of the cutting element, and a pushing structure extending toward the opening direction of the bottle cap is provided on the top wall, and the pushing structure is used to cooperate with the driving structure.
  • the pushing structure drives the cutting element to rotate, so that the cutting element moves in a direction close to the fixing part in the extending direction of the axis line of the bottle mouth.
  • the cutting element has at least one cutting tooth on a side facing the fixing part.
  • the fixing part is a flange structure
  • the flange structure includes a cylindrical connecting section connected to the bottle mouth, and a side connected to an end of the cylindrical connecting section away from the bottle mouth. And outward Extended flange.
  • one end of the cylindrical connecting section facing away from the bottle mouth has a sealing portion that closes the inner hole of the cylindrical connecting section, and an annular reducer in the sealing portion opposite to the barrel wall of the cutting element.
  • Thin area, the thickness of the thinned area of the sealing part is smaller than the thickness of the central area of the sealing part, and the cutting element is used to cut the thinned area.
  • the thickness of the thinned area of the sealing portion is less than 50% of the thickness of the central area of the sealing portion.
  • the thickness of the thinned area of the sealing portion is less than 30% of the thickness of the central area of the sealing portion.
  • the surface roughness Ra of the central area of the sealing portion facing the bottle mouth is greater than or equal to 1.00 ⁇ m.
  • the bottle mouth structure is made by casting molding.
  • the present application also provides a packaging box, including a bottle mouth sealing structure and a box body of any packaging box provided by the above technical solution, the bottle mouth sealing structure is connected to the top side of the box body, and the bottle mouth sealing structure is connected to the top side of the box body.
  • the fixed part of the mouth sealing structure is connected and fixed to the top side of the box body.
  • Figure 1 is a schematic cross-sectional view of the bottle mouth packaging structure of a packaging box provided by an embodiment of the present application
  • Figure 2 is a partial structural schematic diagram of a packaging box provided by an embodiment of the present application.
  • Figure 3 is a partial cross-sectional structural schematic diagram of a bottle mouth sealing structure of a packaging box provided by an embodiment of the present application.
  • Icon 1-bottle mouth packaging structure; 2-box body; 11-bottle mouth structure; 12-cutting component; 13-bottle cap; 111-bottle mouth; 112-fixed part; 113-sealing part; 114-first inner part Thread; 115-second external thread; 121-first external thread; 122-cutting teeth; 131-second internal thread; 1121-flange; 1131-thinned area; 1132-central area; 1141-protruding tooth structure ;1142-the first bevel;1143-the second bevel.
  • the embodiment of the present application provides a bottle mouth packaging structure of a packaging box.
  • the packaging box is The side of the box body away from the bottle mouth is downward, the bottom of the box body is downward, and the position where the bottle mouth is facing upward is the upright position of the packaging box.
  • the bottle mouth packaging structure 1 of this embodiment includes: a bottle mouth structure 11, a cutting element 12 and a bottle cap 13.
  • the packaging box has a box body 2, and a through hole for the passage of drinks is provided on the top side of the box body.
  • the bottle mouth structure will be arranged on the top side of the packaging box, and the bottle mouth structure will correspond to the through opening.
  • the bottle mouth structure 11 includes a fixing part 112 fixedly connected to the box body 2 of the packaging box, and a fixing part 112 fixedly connected to the box body 2 of the packaging box.
  • 112 connected bottle mouth 111 the fixed part 112 is fixedly connected to the top side of the box body, specifically it can be bonded, the bottle mouth 111 is located on the side of the fixed part 112 away from the box body, the bottle mouth 111 has a cylindrical structure.
  • the bottle mouth 111 An opening is formed at the top of the bottle mouth 111, and the inner hole of the bottle mouth 111 is opposite to the opening on the top side of the box body and can be connected, so that the drinks in the box body can flow out;
  • the cutting element 12 also has a cylindrical structure, and the cutting element 12 is set in The inside of the bottle mouth 111 is located in the inner hole of the bottle mouth 111.
  • the cutting element 12 is used to cut the sealing layer between the top side of the box and the bottle mouth 111. There is a thread between the outside of the tube wall of the cutting element 12 and the inside of the bottle mouth 111.
  • the inner side of the cylinder wall of the bottle mouth 111 has a first internal thread 114
  • the outer side of the cylinder wall of the cutting element 12 has a first external thread 121.
  • the first external thread 121 is cooperatively connected with the first internal thread 114.
  • the first internal thread On the cutting element 12 12 will move downward during the rotation, and the end of the cutting element facing the box body is used to cut the sealing layer on the top side of the box body; among them, for the structure of the first internal thread, the first internal thread consists of a continuous protruding tooth structure.
  • a spiral is formed on the inner wall of the bottle mouth.
  • Any protruding tooth structure 1141 of the first internal thread 114 has a first bevel 1142 and a second bevel 1143 located on both sides and oppositely arranged.
  • the first bevel 1142 and the second bevel 1143 are along the The extension direction of the axis A of the bottle mouth 111 is distributed, and the directions of the first inclined surface 1142 and the second inclined surface 1143 are away from each other.
  • the first inclined surface 1142 faces the fixed part 112, and the second inclined surface 1143 faces the opening of the bottle mouth 111.
  • a concave structure is formed between any two adjacent protruding tooth structures 1141 of an internal thread 114, and a concave structure is formed between the same bottle mouth 111.
  • the bottom of the recessed structure has a tangent parallel to the axis A of the bottle mouth 111, and there is an included angle ⁇ between the first slope and the tangent with the opening facing the fixed part, and the included angle ⁇ is greater than or equal to 110°. and is less than or equal to 145°, and there is an included angle ⁇ between the second inclined plane and the tangent line with the opening facing away from the fixed part, and the included angle ⁇ is greater than or equal to 90°; wherein, the bottle mouth structure is manufactured by casting molding. When manufacturing the bottle mouth structure 11, during demoulding, the inner mold of the bottle mouth comes out from the top opening of the bottle mouth.
  • the included angle ⁇ is set between 110° and 145°, which increases the protrusion.
  • the inclination angle of the first inclined plane in the tooth structure that is opposite to the direction of ejection is to increase the inclination angle of the surface of the protruding tooth structure that hinders demoulding, thus weakening the blocking ability of the wall surface of the protruding tooth structure that impedes demolding. Reducing friction helps reduce the resistance during demolding, and setting the included angle ⁇ to be greater than or equal to 90° makes it easier to separate the mold from the bottle mouth, which helps alleviate thread undercuts, wear, etc.
  • the bottle cap 13 is used to cover the top side of the bottle mouth, cooperate with the bottle mouth 111 and close the opening on the top side of the bottle mouth 111, which is beneficial to dust prevention and ensures the bottle mouth is clean.
  • the inclination angle of the surface that hinders demoulding is appropriately increased, so that the surfaces on both sides of the raised tooth structure of the first internal thread of the bottle mouth have appropriate angles, which is beneficial to reduce the cost of casting molding manufacturing.
  • the resistance during demoulding during the process enables smooth demoulding and helps reduce the wear and undercut of the first internal thread.
  • the included angle ⁇ can be set to be greater than or equal to 120° and less than or equal to 135°. Further setting a more appropriate inclination angle of the first bevel is more conducive to reducing thread wear during demoulding.
  • the included angle ⁇ can be set to 125°, 130° or 132°, or other angles, which can smooth demoulding during casting and manufacturing, reduce the thrust during demoulding, and reduce thread wear and undercut. .
  • the included angle ⁇ can be set to be greater than or equal to 100° and less than or equal to 120°, and further set a more appropriate inclination angle of the second bevel, making it easier for the thread to separate from the mold during demolding, which is beneficial to reducing wear and undercutting. situation.
  • the included angle ⁇ can be 110°, 113°, or 115°, or other angles, which can make demolding during the manufacturing process smoother and reduce thread wear and undercut conditions.
  • a raised tooth structure can be provided The curvature of the top of 1141 is greater than or equal to 0.15mm.
  • the first bevel and the second bevel of the raised tooth structure are connected at the top, wherein the curvature of the top of the raised tooth structure is greater than or equal to 0.15 mm, the top of the raised tooth structure forms a smooth structure, the first bevel and the second bevel
  • the smooth transition at the top prevents the top of the raised tooth structure from being too sharp, which helps reduce wear and reduce the resistance during demoulding, making the demoulding process smoother and improving work efficiency.
  • the curvature of the top of the raised tooth structure can be specifically set to 0.16mm, 0.18mm, or 0.20mm.
  • the surface roughness Ra of the first internal thread 114 is less than or equal to 1.00 ⁇ m.
  • the main factor affecting the roughness of the product is the mold. Roughness, so the roughness Ra of the first internal thread is limited to less than or equal to 1.00 ⁇ m, then the roughness Ra of the surface in contact between the mold and the bottle mouth structure is set to less than 1.00 ⁇ m, so that the surface of the first internal thread can reach a certain level of smoothness. , which is beneficial to reducing friction, reducing the resistance during demoulding, and is beneficial to reducing the wear of the first internal thread.
  • Some current beverage packaging boxes can drive the cutting element to rotate, so that the cutting element moves downward while rotating, and then can pierce the sealing layer, and then cut the sealing layer to facilitate the formation of an opening for the beverage to flow out.
  • both the cutting element and the bottle mouth have certain allowable deviations during preparation, when the cutting element is at the lower limit of the tolerance and the bottle mouth is at the larger limit of the tolerance, the thread fit between the bottle mouth and the cutting element is poor, and the cutting element Moving downward to pierce and cut the sealing layer also requires a certain amount of force. Therefore, when driving the cutting element to rotate, it is easy for the cutting element and the bottle mouth to slip. The cutting element rotates in the original position and cannot move downward, so that the opening cannot be achieved. Condition. Therefore, there is an urgent need to solve the problem that the cutting element cannot open the sealing layer.
  • the barrel wall of the bottle mouth 111 has a threaded area
  • the first internal thread 114 is a thread located on the barrel wall of the bottle mouth.
  • the thread depth z of the first internal thread 114 is greater than or equal to 55% of the wall thickness y of the thread area, where the thread depth z of the first internal thread 114 is: along the same radial direction of the bottle mouth 111, the bulge
  • the size from the top side of 1141 to the bottom of the recessed structure; the wall thickness y of the threaded area is: along the radial direction of the bottle mouth, the barrel of the threaded area Dimensions from the inner surface of the wall to the outer surface of the wall.
  • the outer side of the cylinder wall of the cutting element 12 has a first external thread 121 that is matched with the first internal thread 114.
  • the first external thread 121 of the cutting element 12 cooperates with the first internal thread 114, the first external thread 121
  • the thread depth can be the same as the thread depth of the first internal thread, or the thread depth of the first external thread 121 is slightly greater than the thread depth of the first internal thread 114, as long as it is ensured that the first internal thread 114 can be in good shape with the first external thread 121 Just cooperate.
  • the thread depth of the first internal thread on the inside of the bottle mouth is greater than or equal to 55% of the wall thickness of the threaded area. Thread, so that the thread depth of the first internal thread has an appropriate ratio to the wall thickness of the threaded area of the bottle mouth, ensuring a certain wall thickness of the threaded area of the bottle mouth, ensuring the structural strength of the barrel wall of the bottle mouth, and ensuring the structure of the bottle mouth stability, and increasing the thread depth of the first internal thread, so that the contact mating surface between the first internal thread of the bottle mouth and the first external thread of the cutting element is increased, and when the cutting element rotates, the first internal thread of the cutting element is The external thread can stably contact the first internal thread and receive downward pressure to spiral downward. When the lower end of the cutting element cuts the sealing layer of the box body, it can also stably rotate downward to avoid slipping. to facilitate successful cutting of the opening.
  • the thread depth z of the first internal thread 114 is greater than or equal to the wall thickness y of the threaded area. 60% and less than or equal to 130% of the wall thickness y of the threaded area. Choosing the ratio of the thread depth of the first internal thread 114 to the wall thickness of the threaded area within an appropriate range can further increase the mating area of the first internal thread of the bottle mouth and the first external thread of the cutting element, which is more conducive to the cutting element. Smoothly rotate downward to avoid slipping when cutting the sealing layer of the box body and ensure that the cutting element successfully cuts the opening in the sealing layer of the box body.
  • the thread depth z of the first internal thread 114 may be further set to be greater than or equal to 90% of the wall thickness y of the threaded area and less than or equal to 110% of the wall thickness y of the threaded area.
  • the thread depth of the first internal thread and the wall thickness of the threaded area of the bottle mouth have a more appropriate ratio, so that the first internal thread of the bottle mouth and the first external thread of the cutting element have a more appropriate mating area, so that the bottle Effective thread coordination is maintained between the first internal thread of the mouth and the first external thread of the cutting element to avoid slipping and ensure that the cutting element can cut an opening in the sealing layer of the box body.
  • the thread depth of the first internal thread 114 is The degree z can be 92%, 95%, 98% or 105% of the wall thickness y of the threaded area, so that effective thread cooperation is maintained between the first internal thread of the bottle mouth and the first external thread of the cutting element to avoid slipping.
  • the thread depth z of the first internal thread can be set to 0.5mm ⁇ 0.55mm. Specifically, the thread depth z of the first internal thread can be set to 0.52mm, 0.53mm or 0.54mm, so that the first Maintain an effective fit between the internal thread and the first external thread to avoid slipping.
  • the bottle mouth 111 along the extension direction of the axis A of the bottle mouth 111 , the bottle mouth 111 also has a non-threaded area, and the non-threaded area is located on the side of the threaded area away from the fixing part 112 , and the non-threaded area is located at the top of the bottle mouth 111, and the wall thickness x on the top side of the non-threaded area is greater than or equal to 75% of the wall thickness y of the threaded area.
  • the non-threaded area of the bottle mouth is on the top side of the bottle mouth, and the end surface of the non-threaded area away from the threaded area is the top surface of the bottle mouth.
  • the bottle mouth structure in this embodiment is manufactured by casting molding.
  • the top side of the bottle mouth The end face of the bottle mouth is the thrust action surface.
  • the width of the end face on the top side of the bottle mouth is set to be greater than or equal to 75% of the wall thickness of the threaded area, so that the end face on the top side of the bottle mouth has a certain width, which can be the ejection width during demolding. , it is convenient to apply force when demoulding, which is conducive to smooth demoulding and facilitates the pouring and molding of the bottle mouth structure.
  • the relationship between the thread depth of the first internal thread and the thickness of the non-threaded area is set as follows: the thread depth z of the first internal thread 114 is greater than or equal to the wall thickness x of the top side of the non-threaded area. 80% and less than the wall thickness x of the top side of the non-threaded area.
  • the top side of the bottle mouth has a more appropriate ejection width, which facilitates the demoulding of the bottle mouth structure during pouring and molding, and is beneficial to improving the efficiency of manufacturing work.
  • the bottle mouth 111 and the bottle cap 13 are threadedly connected.
  • the outside of the cylinder wall of the bottle mouth 111 has a second external thread 115; the side wall of the bottle cap 13
  • the inner side has a second internal thread 131 for mating connection with the second external thread 115 . This makes the connection between the bottle cap and the bottle mouth stronger and tighter.
  • a driving structure is provided on the inside of the tube wall of the cutting element 12, and a driving structure is provided on the top wall of the bottle cap 13 toward the
  • the pushing structure extends in the direction of the opening.
  • the pushing structure is used to cooperate with the driving structure.
  • the pushing structure contacts and cooperates with the driving structure, and the pushing structure can apply a rotational force to the driving structure, so that the pushing structure
  • the cutting element 12 is driven to rotate such that the cutting element 12 can move toward the fixed part 112 in the extending direction of the axis line of the bottle mouth 111 during the rotation.
  • the pushing structure on the inside of the bottle cap cooperates with the driving structure of the cutting element.
  • the rotation of the bottle cap drives the cutting element to rotate.
  • the cutting element and the inside of the bottle cap are threaded, and the spiral direction is downward. Just right, the cutting element It moves downward during the rotation.
  • the cutting element is driven to rotate and downward.
  • the lower end of the cutting element can cut the opening from the sealing layer on the top side of the box. The operation process is simple and reliable, and it is When the bottle cap is opened, an opening is cut out of the sealing layer, which is very convenient for the drinker to drink.
  • the cutting tooth 122 there is at least one cutting tooth 122 on the side of the cutting element 12 facing the fixed part 112 .
  • the cutting tooth 122 has a cutting tip, and the cutting tip faces the box body to facilitate cutting of the cutting film.
  • the lower end of the cutting element can have two cutting teeth, three cutting teeth, or four cutting teeth, or a plurality of cutting teeth arranged circumferentially around the axis of the cutting element, so that the sealing layer can be cut more quickly. open.
  • the fixing part 112 is a flange structure.
  • the flange structure includes a cylindrical connecting section connected to the bottle mouth 111 and a cylindrical connecting section facing away from the bottle mouth 111 .
  • the flange can be fixedly connected to the box body, and specifically, the flange can be fixed to the top side of the box body through adhesive placement.
  • the fixed part and the bottle mouth are an integrated structure, which can be manufactured in the same casting process, and the structure is stable. It has good performance and good structural strength.
  • one end of the cylindrical connecting section away from the bottle mouth 111 has a sealing portion 113 that closes the inner hole of the cylindrical connecting section.
  • the surface where the flange is located and the top connection surface form an integral body, and a sealing portion is provided on the surface flush with the flange and opposite to the inner hole of the cylindrical connection section, which is equivalent to the sealing on the top side of the box, and the sealing portion can be reused It is part of the sealing layer on the top side of the box body, and is an annular thinned area 1131 in the sealing part 113 opposite to the barrel wall of the cutting element 12.
  • the thickness of the thinned area 1131 of the sealing part 113 is smaller than the central area of the sealing part 113.
  • the thickness of the cutting element is 1132, and the cutting element is used to cut the thinned area 1131.
  • the thickness of the thinned area is smaller, which reduces the cutting force and facilitates the smooth cutting of the cutting element, which is helpful to avoid slippage in the thread fit between the cutting element and the bottle mouth. It is helpful to ensure that the cutting element successfully cuts the opening in the sealing part.
  • the thinned area 1131 of the sealing portion 113 can be selected.
  • the thickness is less than 50% of the thickness of the central region 1132 of the sealing portion 113 . This prevents the thickness of the thinned area of the sealing part from being too small to lose the sealing effect, and ensures that it is easy to cut and facilitates opening.
  • the thickness of the thinned area 1131 of the sealing part 113 can be selected to be less than 30% of the thickness of the central area 1132 of the sealing part 113, so that the thinned area is easier to cut. opening, reducing the cutting resistance of the cutting element and ensuring the success rate of opening.
  • the roughness Ra of the surface of the central area 1132 of the sealing part 113 facing the bottle mouth 111 can be set to be greater than or equal to 1.00 ⁇ m. That is to say, during the casting molding manufacturing, the grinding tool The surface roughness Ra of the portion corresponding to the surface of the central area 1132 of the sealing portion facing the bottle mouth 111 is greater than or equal to 1.00 ⁇ m.
  • the above-mentioned sealing structure has an integrated structure formed by casting, and the overall structure is good, stable and reliable.
  • this embodiment also provides a packaging box, including a bottle mouth packaging structure 1 and a box body 2 of any of the packaging boxes provided in the above embodiments.
  • the bottle mouth packaging structure 1 Connected to the top side of the box body 2 , the fixing portion 112 of the bottle mouth packaging structure 1 is connected and fixed to the top side of the box body 2 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

一种包装盒的瓶口封装结构及包装盒，瓶口封装结构包括瓶口结构（11）、切割元件（12）和瓶盖（13），瓶口结构（11）包括固定部（112）、与固定部（112）连接的瓶嘴（111），瓶嘴（111）具有圆筒状结构，瓶嘴（111）内侧有第一内螺纹（114）；第一内螺纹（114）的凸起牙结构（1141）具有位于其两侧的第一斜面（1142）和第二斜面（1143），第一斜面（1142）朝向固定部，第一内螺纹（114）中两个相邻的凸起牙结构（1141）之间形成凹陷结构；同一个过瓶嘴（111）的轴心线的截面内，凹陷结构底部有与瓶嘴（111）的轴心线平行的切线，第一斜面（1142）与切线之间的夹角α为110°～145°，第二斜面（1143）与切线之间的夹角β≥90°；切割元件（12）套设于瓶嘴（111）内且具有第一外螺纹（121）。第一内螺纹（114）的凸起牙结构两侧的表面有合适的倾斜角度，利于减小脱模阻力、缓解螺纹磨损、咬边情况。

Description

包装盒的瓶口封装结构及包装盒
相关申请的交叉引用
本申请要求在2022年07月18日提交中国专利局、申请号为202210845148.X、申请名称为“一种包装盒的瓶口封装结构及包装盒”的中国专利申请的优先权，其全部内容通过引用结合在本申请中；本申请要求在2022年07月18日提交中国专利局、申请号为202210843849.X、申请名称为“一种包装盒的瓶口封装结构及包装盒”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及包装领域，特别涉及一种包装盒的瓶口封装结构及包装盒。
背景技术
目前的一些饮品包装盒，在盒体上设置瓶口，且在瓶口处连接瓶盖，为了保证包装密封性，在瓶口朝向盒体的一端设置密封层，密封层与盒体顶侧密封连接，在饮用饮品时需要在瓶口内部将包装盒顶层的密封层割破，目前，瓶口与瓶盖螺纹连接，且在瓶口内侧设置有用于切割密封层的切割元件，该切割元件外周具有外螺纹，瓶口内侧设置有内螺纹与切割元件的外螺纹配合连接。通过驱动切割元件旋转，使得切割元件与瓶口内螺纹的配合下，在旋转的同时向下移动，由于旋转向下需要一定的压力，为了使得切割元件能顺利随着旋转向下移动，会设置切割元件与瓶口的螺纹配合有一定的深度，但是在瓶口浇注成型制造时，脱模时需要将浇注件推出，由于瓶口的内螺纹深度较大，需要更大的推力，造成脱模困难，并且还容易导致浇注件变形，增加制造难度。因此，上述瓶口浇注件脱模困难的问题亟待解决。
发明内容
本申请公开了一种包装盒的瓶口封装结构及包装盒，该包装盒的瓶口封装结构中，适当的增加阻碍脱模的表面的倾斜角度，使得瓶嘴的第一内螺纹的凸起牙结构两侧的表面具有合适角度，有利于减小浇注成型制造过程中脱模时的阻力，使得顺利脱模，且有利于降低第一内螺纹磨损、咬边等情况。
为达到上述目的，本申请提供以下技术方案：
一种包装盒的瓶口封装结构，包括：
瓶口结构，所述瓶口结构包括用于与包装盒的盒体固定的固定部、以及与所述固定部连接的瓶嘴，所述瓶嘴位于所述固定部背离所述盒体的一侧，所述瓶嘴具有圆筒状结构，所述瓶嘴的筒壁内侧具有第一内螺纹；所述第一内螺纹的任意一个凸起牙结构具有位于其两侧的第一斜面和第二斜面，且所述第一斜面朝向所述固定部，所述第一内螺纹的任意两个相邻的凸起牙结构之间形成凹陷结构；在同一个过所述瓶嘴的轴心线的截面内，所述凹陷结构的底部具有与所述瓶嘴的轴心线平行的切线，所述第一斜面与所述切线之间具有开口朝向所述固定部的夹角α，所述夹角α大于等于110°且小于等于145°，所述第二斜面与所述切线之间具有开口背离所述固定部的夹角β，所述夹角β大于等于90°；
切割元件，所述切割元件具有圆筒状结构，所述切割元件用于套设于所述瓶嘴内，且所述切割元件的筒壁外侧具有与所述第一内螺纹配合连接的第一外螺纹，所述切割元件用于切割所述盒体顶侧的密封层；
瓶盖，所述瓶盖用于与所述瓶嘴配合连接并封闭所述瓶嘴顶侧的开口。
上述包装盒的瓶口封装结构中，适当的增加阻碍脱模的表面的倾斜角度，使得瓶嘴的第一内螺纹的凸起牙结构两侧的表面具有合适角度，有利于减小浇注成型制造过程中脱模时的阻力，使得顺利脱模，且有利于降低第一内螺纹磨损、咬边等情况。
可选地，所述夹角α大于等于120°且小于等于135°。
可选地，所述夹角α为125°。
可选地，所述夹角β大于等于100°且小于等于120°。
可选地，所述夹角β为110°。
可选地，所述凸起牙结构的顶部的曲率大于等于0.15㎜。
可选地，所述第一内螺纹的表面粗糙度Ra小于等于1.00μm。
可选地，所述第一内螺纹位于所述瓶嘴的筒壁上螺纹区内，所述第一内螺纹的螺纹深度大于等于所述螺纹区的壁厚的55％，其中，所述第一内螺纹的螺纹深度为：沿所述瓶嘴的同一径向方向，所述凸起牙结构的顶侧至所述瓶嘴的内壁面的尺寸。
可选地，所述第一内螺纹的螺纹深度大于等于所述螺纹区的壁厚的60％且小于等于所述螺纹区的壁厚的130％。
可选地，所述第一内螺纹的螺纹深度大于等于所述螺纹区的壁厚的90％且小于等于所述螺纹区的壁厚的110％。
可选地，沿所述瓶嘴的轴心线的延伸方向，所述瓶嘴还具有非螺纹区，所述非螺纹区位于所述螺纹区背离所述固定部的一侧，且所述非螺纹区位于所述瓶嘴的顶部，所述非螺纹区顶侧的壁厚大于等于所述螺纹区的壁厚的75％。
可选地，所述第一内螺纹的螺纹深度大于等于所述非螺纹区顶侧的壁厚的80％且小于所述非螺纹区顶侧的壁厚。
可选地，所述瓶嘴的筒壁外侧具有第二外螺纹；所述瓶盖的侧壁内侧具有用于与所述第二外螺纹配合连接的第二内螺纹。
可选地，所述切割元件的管壁内侧设置有驱动结构，所述瓶盖的顶壁设置有朝向其开口方向延伸的推动结构，所述推动结构用于与所述驱动结构配合，当所述瓶盖首次开启旋转时，所述推动结构驱动所述切割元件旋转，以使所述切割元件在所述瓶嘴的轴心线的延伸方向上向靠近所述固定部的方向移动。
可选地，所述切割元件朝向所述固定部的一侧具有至少一个切割齿。
可选地，所述固定部为法兰结构，所述法兰结构包括与所述瓶嘴连接的筒状连接段、以及连接于所述筒状连接段背离所述瓶嘴的一端的侧边且向外 延伸的凸缘。
可选地，所述筒状连接段背离所述瓶嘴的一端具有封闭所述筒状连接段的内孔的密封部，所述密封部中与所述切割元件的筒壁相对的环状减薄区，所述密封部的减薄区的厚度小于所述密封部的中心区域的厚度，所述切割元件用于切割所述减薄区。
可选地，所述密封部的减薄区的厚度小于所述密封部的中心区域的厚度的50％。
可选地，所述密封部的减薄区的厚度小于所述密封部的中心区域的厚度的30％。
可选地，所述密封部的中心区域朝向所述瓶嘴的表面的粗糙度Ra大于等于1.00μm。
可选地，所述瓶口结构为浇注成型制成。
本申请还提供了一种包装盒，包括如上述技术方案提供的任意一种包装盒的瓶口封装结构和盒体，所述瓶口封装结构连接于所述盒体的顶侧，所述瓶口封装结构的固定部连接固定于所述盒体的顶侧。
附图说明
图1为本申请实施例提供的一种包装盒的瓶口封装结构的剖面示意图；
图2为本申请实施例提供的一种包装盒的局部结构示意图；
图3为本申请实施例提供的一种包装盒的瓶口封装结构的局部剖面结构示意图。
图标：1-瓶口封装结构；2-盒体；11-瓶口结构；12-切割元件；13-瓶盖；111-瓶嘴；112-固定部；113-密封部；114-第一内螺纹；115-第二外螺纹；121-第一外螺纹；122-切割齿；131-第二内螺纹；1121-凸缘；1131-减薄区；1132-中心区域；1141-凸起牙结构；1142-第一斜面；1143-第二斜面。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图1、图2和图3所示，本申请实施例提供了一种包装盒的瓶口封装结构，其中，为便于说明，以包装盒正立的放置位置进行说明，并且，包装盒的盒体背离瓶嘴的一侧在下，盒体的盒底朝下，且瓶嘴在朝上的位置为包装盒的正立位置。本实施例的瓶口封装结构1包括：瓶口结构11、切割元件12以及瓶盖13，其中，包装盒具有盒体2，在盒体的顶侧设置有一个用于饮品通过的通口，瓶口结构会设置在包装盒的顶侧，并且瓶口结构会与该通口对应，具体地，瓶口结构11包括有与包装盒的盒体2固定连接的固定部112、以及与固定部112连接的瓶嘴111，固定部112与盒体的顶侧固定连接，具体可以为粘接，瓶嘴111位于固定部112背离盒体的一侧，瓶嘴111具有圆筒状结构瓶嘴111的顶端形成开口，瓶嘴111的内孔与盒体顶侧的通口相对，并且能够连通，可以实现盒体内的饮品流出；切割元件12也具有圆筒状结构，并且切割元件12套设在瓶嘴111的内侧，位于瓶嘴111的内孔里，切割元件12用于切割盒体顶侧与瓶嘴111的相对的密封层，切割元件12的管壁外侧与瓶嘴111内侧之间螺纹连接，具体地，瓶嘴111的筒壁内侧具有第一内螺纹114，切割元件12的筒壁外侧具有第一外螺纹121，第一外螺纹121与第一内螺纹114配合连接，在切割元件12旋转过程中会向下移动，切割元件的朝向盒体的一端用于切割盒体顶侧的密封层；其中，对于第一内螺纹的结构，第一内螺纹由连续的凸起牙结构在瓶嘴内壁上螺旋延伸形成，第一内螺纹114的任意一个凸起牙结构1141具有位于其两侧且相对设置的第一斜面1142和第二斜面1143，第一斜面1142和第二斜面1143沿瓶嘴111的轴心线A的延伸方向分布，并且第一斜面1142和第二斜面1143的朝向相互背离，第一斜面1142朝向固定部112，则第二斜面1143朝向瓶嘴111的开口，第一内螺纹114的任意两个相邻的凸起牙结构1141之间形成凹陷结构，在同一个过瓶嘴111的 轴心线A的截面内，凹陷结构的底部具有与瓶嘴111的轴心线A平行的切线，第一斜面与切线之间具有开口朝向固定部的夹角α，夹角α大于等于110°且小于等于145°，第二斜面与切线之间具有开口朝向背离固定部的方向的夹角β，夹角β大于等于90°；其中，瓶口结构由浇注成型方式制造，当通过浇注成型方式制造瓶口结构11时，在进行脱模时，瓶嘴内部模具从瓶嘴的顶端开口处脱出，沿着脱出方向，将夹角α设置在110°～145°之间，增大了凸起牙结构中朝向与脱出方向相逆的第一斜面的倾斜角度，也就是增加了凸起牙结构阻碍脱模的表面的倾斜角度，从而减弱了凸起牙结构阻碍脱模的壁面的阻碍能力，减小摩擦，有助于减小脱模时的阻力，且设置夹角β大于等于90°，使得模具与瓶嘴之间更容易分离开，有助于缓解螺纹咬边、磨损等情况，有助于顺利脱模，瓶盖13用于盖在瓶嘴的顶侧，与瓶嘴111配合连接并封闭瓶嘴111顶侧的开口，有利于防尘，保证瓶嘴洁净。
上述包装盒的瓶口封装结构中，适当的增加阻碍脱模的表面的倾斜角度，使得瓶嘴的第一内螺纹的凸起牙结构两侧的表面具有合适角度，有利于减小浇注成型制造过程中脱模时的阻力，使得顺利脱模，且有利于降低第一内螺纹磨损、咬边等情况。
在具体实施时，夹角α可以设置为大于等于120°且小于等于135°，进一步设置更合适的第一斜面的倾斜角度，更有利于在脱模时减小螺纹磨损情况。优选地，可以设置夹角α可以为125°、130°或132°，或者其它角度，可以在浇注成型制造时使得脱模顺利，减小脱模时的推力，减弱螺纹的磨损、咬边情况。
另外，具体地，夹角β可以设置大于等于100°且小于等于120°，进一步设置更合适的第二斜面的倾斜角度，使得脱模时螺纹更容易与模具分离，有利于减弱磨损、咬边状况。优选地，夹角β可以为110°、113°或115°，或者其它角度，能够使得制造过程中脱模更加顺利，且减小螺纹磨损、咬边状况。
在一种可能的实施方式中，为了更好的进行脱模，可以设置凸起牙结构 1141的顶部的曲率大于等于0.15㎜。凸起牙结构的第一斜面和第二斜面的在顶部连接，其中，设置凸起牙结构的顶部的曲率大于等于0.15㎜，凸起牙结构的顶部形成圆滑结构，第一斜面和第二斜面在顶部圆滑过渡，使得凸起牙结构的顶部不会太尖锐，有利于减小磨损，且减小脱模时的阻力，使得脱模过程更加顺利，提高工作效率。且凸起牙结构的顶部的曲率具体可以设置为0.16㎜、0.18㎜、或者0.20㎜。
另一方面，为了使得脱模更加顺利，在一种可能的实施方式中，第一内螺纹114的表面粗糙度Ra小于等于1.00μm，在浇注制造中，产品的粗糙度主要影响因素是模具的粗糙度，所以限制第一内螺纹的粗糙度Ra小于等于1.00μm，则模具与瓶口结构接触的表面的粗糙度Ra设置为小于1.00μm，使得第一内螺纹的表面可以达到一定的光滑程度，有利于减小摩擦，减小脱模时的阻力，且有利于减小第一内螺纹的磨损。
目前的一些饮品包装盒可以通过驱动切割元件旋转，使得切割元件在旋转的同时向下移动，然后可以捅破密封层，进而切割密封层，方便形成用于饮品流出的开口。但是，由于切割元件和瓶口制备时均具有一定的允许偏差，当切割元件处于公差的较低极限，瓶口处于公差的较大极限，瓶口与切割元件之间螺纹配合不良，并且切割元件向下移动捅破并切割密封层也需要一定的力，所以，在驱动切割元件旋转时，容易出现切割元件与瓶口打滑，切割元件在原位置旋转而无法向下移动的，从而无法实现开口的情况。因此，目前亟需解决切割元件无法对密封层进行开口的问题。
如图3所示，在上述瓶口封装结构的基础上，在一种可能的实施方式中，瓶嘴111的筒壁上具有螺纹区，第一内螺纹114是位于瓶嘴的筒壁的螺纹区内，设置第一内螺纹114的螺纹深度z大于等于螺纹区的壁厚y的55％，其中，第一内螺纹114的螺纹深度z为：沿瓶嘴111的同一径向方向，凸起牙结构1141的顶侧至瓶嘴111的内壁面的尺寸，其中，瓶嘴111的内壁面为两个相邻的凸起牙结构之间的沟槽的槽底，也就是，凸起牙结构1141的顶侧至凹陷结构的底部的尺寸；螺纹区的壁厚y为：沿着瓶嘴的径向方向，螺纹区的筒 壁的内壁面至外壁面的尺寸。切割元件12的筒壁外侧具有与第一内螺纹114配合连接的第一外螺纹121，同理的，由于切割元件12的第一外螺纹121与第一内螺纹114配合，第一外螺纹121的螺纹深度可以与第一内螺纹的螺纹深度相同，或者，第一外螺纹121的螺纹深度稍大于第一内螺纹114的螺纹深度，只要保证第一内螺纹114能够与第一外螺纹121良好配合就可以。切割元件与瓶嘴之间螺纹配合，并且切割元件在旋转的过程中会向下移动，按照瓶嘴内侧的第一内螺纹的螺纹深度大于等于螺纹区的壁厚的55％的设置第一内螺纹，使得第一内螺纹的螺纹深度与瓶嘴的螺纹区的壁厚具有合适的比例，保证瓶嘴螺纹区具有的一定的壁厚，保证瓶嘴的筒壁的结构强度，保证瓶嘴结构稳定性，且增加第一内螺纹的螺纹深度，使得瓶嘴的第一内螺纹与切割元件的第一外螺纹之间的接触配合面增大，在切割元件旋转时，使得切割元件的第一外螺纹可以稳定的与第一内螺纹接触，并受到向下的压力，螺旋向下，并且在切割元件的下端切割盒体的密封层时，也可以稳定的旋转向下，避免打滑情况出现，以便于成功切割出开口。
具体实施时，对于第一内螺纹114的螺纹深度z与瓶嘴111的螺纹区的壁厚y之间的比例，可以选择设置第一内螺纹114的螺纹深度z大于等于螺纹区的壁厚y的60％且小于等于螺纹区的壁厚y的130％。在合适的范围内选择第一内螺纹114的螺纹深度与螺纹区的壁厚的比例，可以进一步增加瓶嘴的第一内螺纹与切割元件的第一外螺纹的配合面积，更有利于切割元件顺利旋转向下，避免在切割盒体的密封层时出现打滑现象，保证切割元件在盒体的密封层成功切割出开口。
更优选地，可以进一步设置第一内螺纹114的螺纹深度z大于等于螺纹区的壁厚y的90％且小于等于螺纹区的壁厚y的110％。使得第一内螺纹的螺纹深度与瓶嘴螺纹区的壁厚具有更合适的比例，使得瓶嘴的第一内螺纹与切割元件的第一外螺纹之间的具有更合适的配合面积，使得瓶嘴的第一内螺纹与切割元件的第一外螺纹之间保持有效的螺纹配合，避免打滑，保证切割元件可以在盒体的密封层切割出开口。在具体实施时，第一内螺纹114的螺纹深 度z可以为螺纹区的壁厚y的92％、95％、98％或者105％，使得瓶嘴的第一内螺纹与切割元件的第一外螺纹之间保持有效的螺纹配合，避免打滑。
在一种可能的实施方式中，第一内螺纹的螺纹深度z可以设置为0.5㎜～0.55㎜，具体第一内螺纹的螺纹深度z可以设置为0.52㎜、0.53㎜或者0.54㎜，使得第一内螺纹和第一外螺纹之间保持有效配合，避免打滑。
参考图3所示，在一中可能的实施方式中，沿瓶嘴111的轴心线A的延伸方向，瓶嘴111还具有非螺纹区，非螺纹区位于螺纹区背离固定部112的一侧，且非螺纹区位于瓶嘴111的顶部，非螺纹区顶侧的壁厚x大于等于螺纹区的壁厚y的75％。瓶嘴的非螺纹区在瓶嘴的顶侧，非螺纹区背离螺纹区的端面为瓶嘴的顶面，本实施例中的瓶口结构由浇注成型制造，在脱模时，瓶嘴顶侧的端面为推力作用面，设置瓶嘴顶侧的端面宽度大于等于螺纹区的壁厚的75％，使得瓶嘴顶侧的端面具有一定的宽度，可以成为该宽度为脱模时的顶出宽度，便于脱模时施力，有利于顺利脱模，便于瓶口结构浇注成型制造。
优选地，为了更好的设置顶出宽度，设置第一内螺纹的螺纹深度与非螺纹区的薄厚的关系为：第一内螺纹114的螺纹深度z大于等于非螺纹区顶侧的壁厚x的80％且小于非螺纹区顶侧的壁厚x。使得瓶嘴的顶侧具有更合适的顶出宽度，便于瓶口结构浇注成型时脱模，有利于提高制造工作的工作效率。
在一种可能的实施方式中，如图1所示，瓶嘴111与瓶盖13之间螺纹连接，具体地，瓶嘴111的筒壁外侧具有第二外螺纹115；瓶盖13的侧壁内侧具有用于与第二外螺纹115配合连接的第二内螺纹131。使得瓶盖与瓶嘴之间连接更牢固、严密。
在上述瓶口封装结构的基础上，在一种可实现的方式中，如图1和图2所示，切割元件12的管壁内侧设置有驱动结构，瓶盖13的顶壁设置有朝向其开口方向延伸的推动结构，推动结构用于与驱动结构配合，并且，当瓶盖13首次开启旋转时，推动结构与驱动结构接触配合，并且推动结构可以给驱动结构施加旋转力，从而使得推动结构驱动切割元件12旋转，使得切割元件 12在旋转的过程中可以在瓶嘴111的轴心线的延伸方向上向靠近固定部112的方向移动。当首次拧瓶盖时，瓶盖内侧的推动结构与切割元件的驱动结构配合，瓶盖的旋转从而带动切割元件旋转，切割元件与瓶盖内侧为螺纹配合，螺旋方向向下，正好，切割元件在旋转的过程中向下移动，当瓶盖旋转完全打开时，切割元件被带动旋转并向下，切割元件的下端可以将盒体顶侧的密封层切割出开口，操作过程简单可靠，且在打开瓶盖的同时密封层被切出开口，正好方便饮用者进行饮用，非常方便。
具体地，如图2所示，在切割元件12朝向固定部112的一侧具有至少一个切割齿122，切割齿122具有切割尖端，且切割尖端朝向盒体，便于对切割膜进行切割。优选地，切割元件的下端可以两个切割齿、三个切割齿或者四个切割齿，或者设置多个绕切割元件的轴心线的周向排列的切割齿，可以更快速的将密封层切开。
参考图1所示，在一种可能的实施方式中，固定部112为法兰结构，法兰结构包括与瓶嘴111连接的筒状连接段、以及连接于筒状连接段背离瓶嘴111的一端的侧边且向外延伸的凸缘1121。凸缘可以与盒体固定连接，且具体地，凸缘可以通过粘接的放置与盒体顶侧固定，固定部与瓶嘴为一体式结构，可以在同一浇注成型过程中制造成型，结构稳定性较好，且结构强度较好。
进一步地，继续参考图1，筒状连接段背离瓶嘴111的一端具有封闭筒状连接段的内孔的密封部113，凸缘与盒体的顶侧固定之后，密封性也很好，凸缘所在表面与顶侧连接表面形成一整体，在与凸缘平齐的表面、且与筒状连接段的内孔相对的部位设置密封部，相当于盒体顶侧密封，密封部可以复用为在盒体顶侧的密封层的一部分，且密封部113中与切割元件12的筒壁相对的环状减薄区1131，密封部113的减薄区1131的厚度小于密封部113的中心区域1132的厚度，切割元件用于切割减薄区1131，减薄区的厚度较小，减小切割用力，便于切割元件顺利切割，有利于避免切割元件与瓶嘴之间的螺纹配合出现打滑状况，有利于保证切割元件成功在密封部切割出开口。
具体地，对于密封部减薄区的设置，可以选择密封部113的减薄区1131 的厚度小于密封部113的中心区域1132的厚度的50％。使得密封部的减薄区的厚度不会太小而失去密封作用，又可以保证容易被切割，方便开口。更优选地，在保证密封部的密封性的基础上，可以选择设置密封部113的减薄区1131的厚度小于密封部113的中心区域1132的厚度的30％，使得减薄区更容易被割开，减小切割元件的切割阻力，保证开口成功率。
具体地，对于密封部113的表面粗糙度的设置，可以设置密封部113的中心区域1132朝向瓶嘴111的表面的粗糙度Ra大于等于1.00μm，也就是说，在浇注成型制造时，磨具中与密封部的中心区域1132朝向瓶嘴111的表面对应的部分的表面的粗糙度Ra大于或等于1.00μm。
具体地，上述封口结构具有由浇注成型的一体式结构，整体结构性好，稳定可靠。
除此之外，如图2所示，本实施例还提供了一种包装盒，包括如上述实施例提供的任意一种包装盒的瓶口封装结构1和盒体2，瓶口封装结构1连接于盒体2的顶侧，瓶口封装结构1的固定部112连接固定于盒体2的顶侧。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (22)

  1. 一种包装盒的瓶口封装结构，其特征在于，包括：
    瓶口结构(11)，所述瓶口结构(11)包括用于与包装盒的盒体(2)固定的固定部(112)、以及与所述固定部(112)连接的瓶嘴(111)，所述瓶嘴(111)位于所述固定部(112)背离所述盒体(2)的一侧，所述瓶嘴(111)具有圆筒状结构，所述瓶嘴(111)的筒壁内侧具有第一内螺纹(114)；所述第一内螺纹(114)的任意一个凸起牙结构(1141)具有位于其两侧的第一斜面(1142)和第二斜面(1143)，且所述第一斜面(1142)朝向所述固定部(112)，所述第一内螺纹(114)的任意两个相邻的凸起牙结构(1141)之间形成凹陷结构；在同一个过所述瓶嘴(111)的轴心线的截面内，所述凹陷结构的底部具有与所述瓶嘴(111)的轴心线平行的切线，所述第一斜面(1142)与所述切线之间具有开口朝向所述固定部(112)的夹角α，所述夹角α大于等于110°且小于等于145°，所述第二斜面(1143)与所述切线之间具有开口背离所述固定部(112)的夹角β，所述夹角β大于等于90°；
    切割元件(12)，所述切割元件(12)具有圆筒状结构，所述切割元件(12)用于套设于所述瓶嘴(111)内，且所述切割元件(12)的筒壁外侧具有与所述第一内螺纹(114)配合连接的第一外螺纹(121)，所述切割元件(12)用于切割所述盒体顶侧的密封层；
    瓶盖(13)，所述瓶盖(13)用于与所述瓶嘴(111)配合连接并封闭所述瓶嘴(111)顶侧的开口。
  2. 根据权利要求1所述的包装盒的瓶口封装结构，其特征在于，所述夹角α大于等于120°且小于等于135°。
  3. 根据权利要求2所述的包装盒的瓶口封装结构，其特征在于，所述夹角α为125°。
  4. 根据权利要求1所述的包装盒的瓶口封装结构，其特征在于，所述夹角β大于等于100°且小于等于120°。
  5. 根据权利要求4所述的包装盒的瓶口封装结构，其特征在于，所述夹角β为110°。
  6. 根据权利要求1所述的包装盒的瓶口封装结构，其特征在于，所述凸起牙结构(1141)的顶部的曲率大于等于0.15㎜。
  7. 根据权利要求1所述的包装盒的瓶口封装结构，其特征在于，所述第一内螺纹(114)的表面粗糙度Ra小于等于1.00μm。
  8. 根据权利要求1所述的包装盒的瓶口封装结构，其特征在于，所述第一内螺纹(114)位于所述瓶嘴(11)的筒壁上的螺纹区内，所述第一内螺纹(114)的螺纹深度大于等于所述螺纹区的壁厚的55％，其中，所述第一内螺纹(114)的螺纹深度为：沿所述瓶嘴(111)的同一径向方向，所述凸起牙结构(1141)的顶侧至所述瓶嘴(111)的内壁面的尺寸。
  9. 根据权利要求8所述的包装盒的瓶口封装结构，其特征在于，所述第一内螺纹(114)的螺纹深度大于等于所述螺纹区的壁厚的60％且小于等于所述螺纹区的壁厚的130％。
  10. 根据权利要求9所述的包装盒的瓶口封装结构，其特征在于，所述第一内螺纹(114)的螺纹深度大于等于所述螺纹区的壁厚的90％且小于等于所述螺纹区的壁厚的110％。
  11. 根据权利要求8所述的包装盒的瓶口封装结构，其特征在于，沿所述瓶嘴(111)的轴心线的延伸方向，所述瓶嘴(111)还具有非螺纹区，所述非螺纹区位于所述螺纹区背离所述固定部(112)的一侧，且所述非螺纹区位于所述瓶嘴(111)的顶部，所述非螺纹区顶侧的壁厚大于等于所述螺纹区的壁厚的75％。
  12. 根据权利要求11所述的包装盒的瓶口封装结构，其特征在于，所述第一内螺纹(114)的螺纹深度大于等于所述非螺纹区顶侧的壁厚的80％且小于所述非螺纹区顶侧的壁厚。
  13. 根据权利要求1-9任一项所述的包装盒的瓶口封装结构，其特征在于，所述瓶嘴(111)的筒壁外侧具有第二外螺纹(115)；所述瓶盖(13)的侧壁 内侧具有用于与所述第二外螺纹(115)配合连接的第二内螺纹(131)。
  14. 根据权利要求13所述的包装盒的瓶口封装结构，其特征在于，所述切割元件(12)的管壁内侧设置有驱动结构，所述瓶盖(13)的顶壁设置有朝向其开口方向延伸的推动结构，所述推动结构用于与所述驱动结构配合，当所述瓶盖(13)首次开启旋转时，所述推动结构驱动所述切割元件(12)旋转，以使所述切割元件(12)在所述瓶嘴(111)的轴心线的延伸方向上向靠近所述固定部(112)的方向移动。
  15. 根据权利要求1-9任一项所述的包装盒的瓶口封装结构，其特征在于，所述切割元件(12)朝向所述固定部(112)的一侧具有至少一个切割齿(122)。
  16. 根据权利要求1-9任一项所述的包装盒的瓶口封装结构，其特征在于，所述固定部(112)为法兰结构，所述法兰结构包括与所述瓶嘴(111)连接的筒状连接段、以及连接于所述筒状连接段背离所述瓶嘴(111)的一端的侧边且向外延伸的凸缘(1121)。
  17. 根据权利要求16所述的包装盒的瓶口封装结构，其特征在于，所述筒状连接段背离所述瓶嘴(111)的一端具有封闭所述筒状连接段的内孔的密封部(113)，所述密封部(113)中与所述切割元件(12)的筒壁相对的环状减薄区(1131)，所述密封部(113)的减薄区(1131)的厚度小于所述密封部(113)的中心区域(1132)的厚度，所述切割元件(12)用于切割所述减薄区(1131)。
  18. 根据权利要求17所述的包装盒的瓶口封装结构，其特征在于，所述密封部(113)的减薄区(1131)的厚度小于所述密封部(113)的中心区域(1132)的厚度的50％。
  19. 根据权利要求18所述的包装盒的瓶口封装结构，其特征在于，所述密封部(113)的减薄区(1131)的厚度小于所述密封部(113)的中心区域(1132)的厚度的30％。
  20. 根据权利要求17所述的包装盒的瓶口封装结构，其特征在于，所述密封部(113)的中心区域(1132)朝向所述瓶嘴(111)的表面的粗糙度Ra 大于等于1.00μm。
  21. 根据权利要求1-12任一项所述的包装盒的瓶口封装结构，其特征在于，所述瓶口结构(11)为浇注成型制成。
  22. 一种包装盒，其特征在于，包括如权利要求1-21任一项所述的包装盒的瓶口封装结构(1)和盒体(2)，所述瓶口封装结构(1)连接于所述盒体(2)的顶侧，所述瓶口封装结构(1)的固定部(112)连接固定于所述盒体(2)的顶侧。
PCT/CN2023/107496 2022-07-18 2023-07-14 包装盒的瓶口封装结构及包装盒 Ceased WO2024017166A1 (zh)

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US18/993,696 US20260008586A1 (en) 2022-07-18 2023-07-14 Spout packaging structure of packaging box, and packaging box
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