Packaging piece and forging method and forging die thereof

Abstract

The invention provides a packaging piece and a forging method and a forging die thereof. The packaging piece belongs to a part of a container, and the forging method of the packaging piece comprises the steps that at the design temperature, at least two surfaces of a blank are extruded and deformed based on a forging die, the blank is integrally deformed, and the packaging piece is formed; in the section along the length of the packaging piece, the minimum size, perpendicular to the length direction, of the packaging piece is located at the position outside the two ends of the packaging piece. According to the forging method provided by the invention, the whole blank is integrally deformed and is convenient to grasp, and the shape diversification of the packaging piece can also be realized.

Description

Technical Field

[0001] The present application relates to the technical field of container packaging, and more specifically, to a packaging piece, a forging method thereof, and a forging die. Background Art

[0002] In real life, various containers are often used to hold items. Containers contain some packaging, such as bottles, bottle caps, or other components. In order to facilitate the classification of items, the convenience of holding items, or aesthetics, the packaging is often made into special shapes.

[0003] In the related art, a blank is forged into a packaging part through a forging die, which can only extrude one surface of the blank and deform one end of the blank, making it difficult to deform the entire blank. This results in a low diversity of shapes of the packaging parts and has great limitations. Summary of the Invention

[0004] In view of the shortcomings of the existing methods, this application proposes a packaging part and its forging method and forging die to solve the technical problem that the related technology can only deform one end of the blank and is difficult to deform the entire blank.

[0005] In a first aspect, an embodiment of the present application provides a forging method for a packaging member, where the packaging member is part of a container, comprising:

[0006] At the designed temperature, based on the forging die, at least two surfaces of the blank are squeezed and deformed, and the blank is deformed as a whole to form a package; in the cross-section along the length of the package, the minimum dimension of the package perpendicular to the length direction is located outside the two ends of the package.

[0007] In one possible embodiment, at a designed temperature, at least two surfaces of a blank are squeezed and deformed using a forging die, and the entire blank is deformed to form a package, comprising:

[0008] At a designed temperature, based on at least two forging dies, at least two surfaces of the blank are extruded and deformed one by one in at least two steps, and other surfaces of the blank connected to and close to the extruded surface follow the deformation and expand outward to form a package.

[0009] In one possible embodiment, at a designed temperature, at least two surfaces of a blank are extruded and deformed one by one using at least two forging dies in at least two steps, and other surfaces of the blank connected to and adjacent to the extruded surfaces expand outward following the deformation to form a package, including:

[0010] At the designed temperature, based on the first mold, the first bottom surface of the blank is squeezed and deformed toward the inside of the blank to form a first cavity, and the first sub-side surface close to the first bottom surface in the side surface expands outward following the deformation; the blank is a solid structure and is cylindrical.

[0011] At the designed temperature, based on the second mold, the second bottom surface of the blank after the first bottom surface and the first sub-side surface are deformed is extruded inward to form a second cavity, or the second bottom surface of the blank after the first bottom surface and the first sub-side surface are deformed is extruded outward to form a first convex hull, and the second sub-side surface close to the second bottom surface in the side surface follows the deformation and expands outward to obtain a package; the side surface of the package includes a hyperbolic surface.

[0012] In one possible embodiment, the forging method further includes:

[0013] Based on the first mold, the first bottom surface of the blank is squeezed and deformed toward the inside of the blank to form the first cavity, and the side wall of the first cavity close to the cavity bottom is squeezed and deformed outward to form a positioning groove.

[0014] In one possible embodiment, at a designed temperature, at least two surfaces of a blank are squeezed and deformed using a forging die, and the entire blank is deformed to form a package, comprising:

[0015] Based on the third mold, the first bottom surface and the second bottom surface of the blank are squeezed and deformed inward of the blank to form a first cavity and a second cavity, and the first sub-side surface close to the first bottom surface and the second sub-side surface close to the second bottom surface in the side surface are both expanded outward following the deformation to obtain a package; the side surface of the package includes a hyperbolic surface.

[0016] In one possible embodiment, the first bottom surface and the second bottom surface of the blank are opposite to each other.

[0017] In one possible embodiment, the material of the blank includes metal or alloy.

[0018] In one possible embodiment, the outer diameters of the two ends of the package are larger than the outer diameter of the middle portion of the package.

[0019] In one possible embodiment, the maximum outer diameter of the package is greater than the outer diameter of the blank.

[0020] In one possible embodiment, the packaging includes a bottle cap of a cosmetic bottle or a wine bottle.

[0021] In a second aspect, an embodiment of the present application provides a forging die for implementing the forging method provided in the first aspect above, comprising: a first die and a second die.

[0022] The first mold includes: a first upper mold and a first lower mold; the first upper mold has a first protruding structure, and the first lower mold is used to accommodate the blank; the first upper mold and the first lower mold are constructed to extrude the blank during the alignment and closing process at a designed temperature, so that the first bottom surface of the blank is extruded and deformed toward the interior of the blank.

[0023] The second mold includes: a second upper mold and a second lower mold; the second upper mold has a second convex structure, and the second lower mold is used to accommodate the blank after the first bottom surface is deformed; the second upper mold and the second lower mold are constructed to extrude the blank during the alignment and closing process at the design temperature, so that the second bottom surface of the blank is extruded and deformed toward the inside of the blank; or, the second mold includes: a second upper mold and a second lower mold; the second upper mold has a first concave structure, and the second lower mold is used to accommodate the blank after the first bottom surface is deformed; the second upper mold and the second lower mold are constructed to extrude the blank during the alignment and closing process at the design temperature, so that the second bottom surface of the blank is extruded and deformed toward the outside of the blank.

[0024] In a third aspect, an embodiment of the present application provides another forging die for implementing the forging method provided in the first aspect above, including: a third die.

[0025] The third mold includes a third upper mold and a third lower mold.

[0026] The third upper mold has a third convex structure, the third lower mold has a groove, and the groove has a third convex structure; the shape of the cavity formed by the third upper mold and the third lower mold being aligned and closed is adapted to the shape of the package, and is constructed to be aligned and closed at a designed temperature so that the first bottom surface and the second bottom surface of the blank are both squeezed and deformed toward the inside of the blank.

[0027] In a fourth aspect, an embodiment of the present application provides a packaging piece manufactured based on any forging method provided in the first aspect above, comprising: a middle portion and two end portions.

[0028] At least a portion of the surface of each end portion is obtained by extrusion deformation by a forging die.

[0029] In a cross section along the length of the package, the smallest dimension of the package perpendicular to the length direction is located outside the two ends of the package.

[0030] In a possible embodiment, a first cavity and a second cavity are respectively formed at the two ends.

[0031] In a possible embodiment, a positioning groove is provided on the inner wall of the first cavity.

[0032] In a possible embodiment, the two ends are symmetrically arranged.

[0033] In one possible embodiment, the side surface of the package is a hyperbolic surface.

[0034] In a possible implementation manner, the two end portions respectively have a first cavity and a first convex hull.

[0035] The beneficial technical effects brought about by the technical solutions provided in the embodiments of the present application include:

[0036] By using a forging die, at least two surfaces of the blank are squeezed, deforming them, such as making them concave or convex, and changing their shape. This in turn causes the entire blank to deform, for example, forming a structure with thicker ends and a thinner center for easier gripping. Furthermore, packaging with at least two deformed surfaces can be produced in a variety of shapes, achieving diverse packaging shapes.

[0037] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0039] Figure 1 A schematic flow chart of a method for forging a packaging member provided in an embodiment of the present application;

[0040] Figure 2 A schematic structural diagram of a blank in a forging method for a packaging member provided in an embodiment of the present application;

[0041] Figure 3-5 In a forging method for a packaging member provided in an embodiment of the present application, Figure 2 Schematic diagram of the structure of the packaged part forged from the blank from different perspectives;

[0042] Figure 6-7 In another forging method of a packaging member provided in an embodiment of the present application, Figure 2 Schematic diagram of the structure of the packaged part forged from the blank from different perspectives;

[0043] Figure 8 A schematic structural diagram of a blank in another packaging forging method provided in an embodiment of the present application;

[0044] Figure 9 In a forging method for a packaging member provided in an embodiment of the present application, Figure 8 Schematic diagram of the structure of the package forged from the blank.

[0045] Figure 10 A schematic structural diagram of a first mold provided in an embodiment of the present application;

[0046] Figure 11 A schematic structural diagram of a second mold provided in an embodiment of the present application;

[0047] Figure 12 A schematic structural diagram of another second mold provided in an embodiment of the present application.

[0048] Reference numerals:

[0049] 100-packaging;

[0050] 110 - middle part; 120 - end part; 130 - first cavity; 140 - positioning groove; 150 - first convex part; 160 - second cavity;

[0051] 200 - blank; 210 - first bottom surface; 220 - second bottom surface; 230 - side surface; 231 - first sub-side surface; 232 - second sub-side surface;

[0052] 300 - first mold; 310 - first upper mold; 311 - first protruding structure; 320 - first lower mold;

[0053] 400 - second mold; 410 - second upper mold; 411 - second protruding structure; 412 - first concave structure; 420 - second lower mold. DETAILED DESCRIPTION

[0054] The following describes the embodiments of the present application in conjunction with the accompanying drawings. It should be understood that the embodiments described below in conjunction with the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0055] Those skilled in the art will understand that, unless otherwise stated, the terms "said" and "the" used herein may also include plural forms. It should be further understood that the term "including" used in the specification of this application refers to the presence of the features, integers, operations, elements and / or components, but does not exclude the implementation of other features, information, data, operations, elements, components and / or their combinations supported by the technical field. The term "and / or" used herein refers to at least one of the items defined by the term, for example, "A and / or B" can be implemented as "A", or as "B", or as "A and B".

[0056] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0057] The research and development ideas of this application include: in the related technology, the blank is forged into a packaging part through a forging die, and the forging die is divided into an upper die and a lower die. In a set of forging methods, only one set of upper die and lower die is provided. Since the lower die generally plays a fixing role, the upper die is used to extrude the blank under the impact of external force. Therefore, in one forging, only one surface at one end of the blank can be extruded, which can only cause one end of the blank to deform, and it is difficult to deform the blank as a whole, resulting in a low shape diversity of the packaging part.

[0058] The packaging component, forging method thereof, and forging die provided in this application are intended to solve the above-mentioned technical problems of related technologies.

[0059] The following is a detailed description of the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems with specific embodiments. It should be noted that the following embodiments can refer to, draw on, or combine with each other, and the same terms, similar features, and similar implementation steps in different embodiments will not be repeated.

[0060] The embodiment of the present application provides a forging method for a package 100, which is part of a container, comprising the steps of: at a designed temperature, using a forging die, extruding and deforming at least two surfaces of a blank 200, and deforming the blank 200 as a whole to form the package 100; in a cross section along the length of the package 100, the minimum dimension of the package 100 perpendicular to the length direction is located at a position outside the two ends of the package 100. Figure 2 and Figure 8 , the structural diagram of the packaging is referenced Figure 3-Figure 7 and Figure 9 .

[0061] In this embodiment, by using a forging die, at least two surfaces of the blank 200 are extruded to deform the at least two surfaces, for example, to make the surfaces concave or convex, thereby changing the shape of the surface, and thereby causing the entire blank 200 to deform as a whole, for example, forming a structure that is thicker at both ends and thinner in the middle, which is convenient for gripping. Moreover, various shapes of packages 100 with at least two surfaces deformed can be manufactured, thereby achieving shape diversification of the packages 100.

[0062] Optionally, the forging method in the embodiment of the present application includes a cold forging process, and the design temperature is determined according to the material of the blank 200. For example, when the material of the blank 200 is aluminum, the design temperature may be not less than 100 degrees Celsius and not more than 150 degrees Celsius; when the material of the blank 200 is copper, the design temperature may be not less than 200 degrees Celsius and not more than 270 degrees Celsius.

[0063] In one possible embodiment, the above step of extruding and deforming at least two surfaces of the blank 200 using a forging die at a designed temperature and deforming the blank 200 as a whole to form the package 100 includes the following steps:

[0064] At the designed temperature, based on at least two forging dies, at least two surfaces of the blank 200 are extruded and deformed one by one using at least two steps, and other surfaces of the blank 200 connected to and close to the extruded surface follow the deformation and expand outward to form the package 100.

[0065] In this embodiment, a first die 300 is first used to extrusion-deform one surface of the blank 200. During this process, the other surfaces connected to it are deformed and expanded. Next, a second die 400 is used to extrusion-deform another surface of the blank 200, causing the other surfaces connected to it to also deform and expand. If there are more than two surfaces, the corresponding dies are used for extrusion, ultimately producing the package 100.

[0066] In this embodiment, at least two surfaces of the blank 200 are extruded and deformed one by one through at least two steps, breaking the technical barrier in the related art that the forging method can only extrude the blank 200 alone, thereby obtaining a packaging piece 100 with a special shape, which can enrich the packaging market.

[0067] In one possible embodiment, in the above steps, at the design temperature, based on at least two forging dies, at least two surfaces of the blank 200 are extruded and deformed one by one using at least two steps, and other surfaces of the blank 200 connected to and close to the extruded surface follow the deformation and expand outward to form the package 100. The flow chart of this method is as follows: Figure 1 As shown, the following steps S101-S102 are included:

[0068] S101: At the designed temperature, based on the first mold 300, the first bottom surface 210 of the blank 200 is squeezed and deformed toward the inside of the blank 200 to form a first cavity 130, and the first sub-side surface 231 in the side surface 230 close to the first bottom surface 210 expands outward following the deformation; the blank 200 is a solid structure and is cylindrical.

[0069] S102: At the design temperature, based on the second mold 400, the second bottom surface 220 of the blank 200 after the first bottom surface 210 and the first sub-side surface 231 are deformed is extruded and deformed inward to form a second cavity 160, or the second bottom surface 220 of the blank 200 after the first bottom surface 210 and the first sub-side surface 231 are deformed is extruded and deformed toward the outside of the blank 200 to form a first convex bulge 150, and the second sub-side surface 232 in the side surface 230 close to the second bottom surface 220 follows the deformation and expands outward to obtain the package 100; the side surface 230 of the package 100 includes a hyperbolic surface.

[0070] In this embodiment, at the design temperature, the first mold 300 (reference Figure 10 ), one end of the blank 200 is forged, so that the first bottom surface 210 is squeezed and deformed into the interior of the blank 200, and the first bottom surface 210 is concave, forming a first cavity 130. The other surfaces connected to the first bottom surface 210 are deformed and expanded during the deformation process of the first bottom surface 210, so that the outer periphery of one end of the blank 200 is expanded and the outer diameter becomes larger. Then, the blank 200 with one end deformed is taken out. Then, at the design temperature, the second die 400 (reference Figure 11 ), the other end of the blank 200 that has been deformed at one end is forged, so that the second bottom surface 220 of the other end is squeezed and deformed into the inside of the blank 200, and the second bottom surface 220 is concave to form the second cavity 160. Alternatively, a second die 400 having a first concave structure 412 (refer to Figure 12 ), the other end of the deformed blank 200 is forged, causing the second bottom surface 220 of the other end to be squeezed and deformed toward the outside of the blank 200, causing the second bottom surface 220 to bulge, forming a first bulge 150. Then, as the second bottom surface 220 deforms, the other surfaces connected to the second bottom surface 220 also deform and expand, causing the outer circumference of the other end of the blank 200 to expand, increasing its outer diameter. The result is a packaging piece 100 that is thicker at both ends and thinner in the middle.

[0071] Optionally, the blank may be a long cylindrical body or a rectangular parallelepiped.

[0072] In one possible embodiment, the forging method further includes:

[0073] Based on the first mold 300 , the first bottom surface 210 of the blank 200 is squeezed and deformed toward the inside of the blank 200 to form the first cavity 130 , and the side wall of the first cavity 130 close to the cavity bottom is squeezed and deformed outward to form the positioning groove 140 .

[0074] In this embodiment, the first mold 300 can deform the first bottom surface 210 of the blank 200 to form the first cavity 130, and can also deform the sidewalls of the first cavity 130 near the bottom outward to form the positioning groove 140. This embodiment forms the first cavity 130 and the positioning groove 140 in a single process. This not only forms the shape of the package 100, but also forms the positioning groove 140 for positioning, facilitating subsequent assembly of the package 100 onto a container.

[0075] In one possible embodiment, the forging method further includes:

[0076] Based on the second mold 400 , the second bottom surface 220 of the blank 200 is squeezed and deformed toward the inside of the blank 200 to form the second cavity 160 , and the side wall of the second cavity 160 close to the cavity bottom is squeezed and deformed outward to form the positioning groove 140 .

[0077] In one possible embodiment, the above steps of extruding and deforming at least two surfaces of the blank 200 using a forging die at a designed temperature and deforming the blank 200 as a whole to form the package 100 include:

[0078] Based on a third mold (not shown in the figure), the first bottom surface 210 and the second bottom surface 220 of the blank 200 are squeezed and deformed toward the interior of the blank 200 to form a first cavity 130 and a second cavity 160, and the first sub-side surface 231 close to the first bottom surface 210 and the second sub-side surface 232 close to the second bottom surface 220 in the side surface 230 are both expanded outward following the deformation to obtain the package 100; the side surface 230 of the package 100 includes a hyperbolic surface.

[0079] This embodiment differs from the previous embodiment in that an external force is applied to at least one end of a specific third mold, thereby simultaneously or sequentially extruding and deforming the first bottom surface 210 and the second bottom surface 220 of the blank 200, thereby forming a package 100 that is thicker at both ends and thinner in the middle. This embodiment forms the package 100 in a single process, saving process steps.

[0080] In one possible embodiment, the first bottom surface 210 and the second bottom surface 220 of the blank 200 are opposite to each other.

[0081] In this embodiment, the first bottom surface 210 and the second bottom surface 220 of the blank 200 correspond to the end surfaces of the blank 200 respectively. In the forging method, the end surfaces of the blank 200 are forged respectively by a forging die to obtain the package 100.

[0082] In one possible embodiment, the material of the blank 200 includes metal or alloy.

[0083] In this embodiment, the material of the blank 200 can be specified as needed. For example, when the container is basically not over-extruded in the use scenario, a light metal such as aluminum can be selected for manufacturing; if the container is easily squeezed or collided during use, a material with higher hardness, such as steel, needs to be selected for manufacturing.

[0084] In one possible embodiment, the outer diameters of the two ends of the package 100 are larger than the outer diameter of the middle portion 110 of the package 100. The package 100 in this embodiment is thicker at both ends and thinner in the middle, which is convenient for gripping, unique, and aesthetically pleasing.

[0085] In one possible embodiment, the maximum outer diameter of the package 100 is greater than the outer diameter of the blank 200. In this embodiment, the package 100 is obtained by deforming and expanding the blank 200. The maximum outer diameter of the package 100 is greater than the outer diameter of the blank 200, so a thicker package 100 can be produced using a thinner blank 200.

[0086] In one possible embodiment, the container comprises a cosmetic bottle or a wine bottle, and the package 100 comprises a bottle cap of the cosmetic bottle or the wine bottle. The package 100 has a special shape and can be used as a bottle cap, which is convenient for the user to grasp, take the container, and twist off the bottle cap.

[0087] Optionally, after forming a package with thick ends and thin middle, special patterns or designs can be made on the outer surface, ends or other surfaces of the package, such as a logo with special meaning, which can also play an anti-slip role.

[0088] Based on the same inventive concept, an embodiment of the present application provides a forging die for implementing a forging method as provided in the above embodiment, including: a first die 300 and a second die 400 .

[0089] The first mold 300 includes: a first upper mold 310 and a first lower mold 320; the first upper mold 310 has a first protruding structure 311, and the first lower mold 320 is used to accommodate the blank 200; the first upper mold 310 and the first lower mold 320 are constructed to extrude the blank 200 during the alignment and closing process at a designed temperature, so that the first bottom surface 210 of the blank 200 is extruded and deformed toward the inside of the blank 200.

[0090] The second mold 400 includes: a second upper mold 410 and a second lower mold 420; the second upper mold 410 has a second protruding structure 411, and the second lower mold 420 is used to accommodate the blank 200 after the first bottom surface 210 is deformed; the second upper mold 410 and the second lower mold 420 are constructed to extrude the blank 200 during the alignment and closing process at a designed temperature, so that the second bottom surface 220 of the blank 200 is extruded and deformed toward the inside of the blank 200.

[0091] In this embodiment, the first upper mold 310 has a first protruding structure 311, and the first lower mold 320 is used to accommodate the blank 200. External force can act on the first upper mold 310. When the first upper mold 310 is aligned with the first lower mold 320, pressure is applied to the end of the first upper mold 310 away from the first lower mold 320, so that the first upper mold 310 descends and extrude the blank 200, so that the blank 200 has an end with a first bottom surface 210 to form a first cavity 130, and the outer peripheral surface of the end of the blank 200 with the first bottom surface 210 (that is, the first sub-side surface 231 connected to the first bottom surface 210) expands outward. The second upper mold 410 has a second protruding structure 411, and the second lower mold 420 is used to accommodate the blank 200. External force can act on the second upper mold 410. When the second upper mold 410 is aligned with the second lower mold 420, pressure is applied to the end of the second upper mold 410 away from the second lower mold 420, so that the second upper mold 410 descends and extrude the blank 200, so that the end of the blank 200 with the second bottom surface 220 forms a second cavity 160, and the outer peripheral surface of the end of the blank 200 with the second bottom surface 220 (that is, the second sub-side surface 232 connected to the second bottom surface 220) expands outward, thereby forming a package 100.

[0092] It can be understood that the first lower mold 320 (or the second lower mold 420) is used to accommodate and fix the blank 200. The first lower mold 320 (or the second lower mold 420) includes a movable part and a fixed part. The fixed part is fixed and stationary, and the movable part can descend as the first upper mold 310 (or the second upper mold 410) descends, so that the first upper mold 310 (or the second upper mold 410) extrude the blank 200.

[0093] Optionally, the second mold 400 includes: a second upper mold 410 and a second lower mold 420; the second upper mold 410 has a first recessed structure 412, and the second lower mold 420 is used to accommodate the blank 200 after the first bottom surface 210 is deformed; the second upper mold 410 and the second lower mold 420 are constructed to extrude the blank 200 during the alignment and closing process at the design temperature, so that the second bottom surface 220 of the blank 200 is extruded and deformed toward the outside of the blank 200 to form a first bulge 150.

[0094] Based on the same inventive concept, an embodiment of the present application provides another forging die for implementing a forging method as provided in the above embodiment, including: a third die.

[0095] The third mold includes a third upper mold and a third lower mold.

[0096] The third upper mold has a third convex structure, the third lower mold has a groove, and the groove has a third convex structure; the shape of the cavity formed by the third upper mold and the third lower mold being aligned and closed is adapted to the shape of the package 100, and is constructed to be aligned and closed at a designed temperature so that the first bottom surface 210 and the second bottom surface 220 of the blank 200 are both squeezed and deformed toward the interior of the blank 200.

[0097] In this embodiment, the third upper die has a third protruding structure, and the third lower die has a recess for accommodating and securing the blank 200, and also has a third protruding structure. When the third upper die and the third lower die are aligned, an external force can be applied to the third upper die to move the third upper die toward the third lower die, thereby extruding the blank 200. Alternatively, an external force can be applied to both the third upper die and the third lower die simultaneously, causing them to move toward each other, thereby extruding the blank 200 and forming the package 100. The forging die provided in this embodiment can form the special shape of the package 100 using a single forging process, thereby saving costs.

[0098] Based on the same inventive concept, an embodiment of the present application further provides a packaging piece 100 , which is manufactured based on any forging method provided in the first aspect above, and includes: a middle portion 110 and two end portions 120 .

[0099] At least a portion of the surface of each end portion 120 is obtained by deforming at least two surfaces of the blank extruded by the forging die.

[0100] In a cross section along the length of the package 100 , the minimum dimension of the package 100 perpendicular to the length direction is located outside the two ends of the package 100 .

[0101] In this embodiment, the middle portion 110 may refer to the portion that has not been deformed, and the end portions 120 are located at either end of the middle portion 110 and refer to the deformed and expanded portions, with the minimum dimension perpendicular to the length direction located outside the ends of the package 100. For example, when the blank 200 is cylindrical, the minimum dimension perpendicular to the length direction of the package 100 is the diameter of the middle portion 110, and the dimensions perpendicular to the length direction of the two end portions 120 are the diameters of the end portions 120, with the diameter of the middle portion 110 being smaller than the diameter of the end portions 120.

[0102] Optionally, end surfaces of the two end portions 120 away from the middle portion 110 are respectively the first bottom surface 210 and the second bottom surface 220 , and both the blank 200 and the package 100 have symmetrical structures.

[0103] In one possible embodiment, the two ends 120 are respectively provided with a first cavity 130 and a second cavity 160. It is understood that the first cavity 130 can be formed by extruding the first protruding structure 311 or the third protruding structure 530, and the second cavity 160 can be formed by extruding the second protruding structure 411 or the third protruding structure 530.

[0104] In a possible embodiment, a positioning groove 140 is provided on the inner wall of the first cavity 130 to position components subsequently mounted on the package 100 to prevent relative sliding.

[0105] In one possible embodiment, the two ends 120 are symmetrically arranged.

[0106] In one possible embodiment, the side surface 230 of the package 100 is a double-curved surface.

[0107] In one possible embodiment, the two ends 120 respectively have a first cavity 130 and a first convex hull 150. It is understood that the first cavity 130 can be formed by extruding the first convex structure 311 or the third convex structure 530, and the first convex hull 150 can be formed by extruding the first concave structure 412.

[0108] By applying the embodiments of the present application, at least the following beneficial effects can be achieved:

[0109] 1. In some embodiments, by using a forging die, at least two surfaces of the blank 200 are squeezed to deform the at least two surfaces, for example, to make the surfaces concave or convex, thereby changing the shape of the surface, and then the entire blank 200 is deformed accordingly, forming a structure with thicker ends and thinner middle, which is convenient for gripping and can also achieve diversified shapes of the package 100.

[0110] 2. In some embodiments, at least two surfaces of the blank 200 are extruded and deformed one by one through at least two steps, breaking the technical barrier of the forging method in the related art that can only extrude the blank 200 alone, thereby obtaining a package 100 with a special shape, which can enrich the packaging market.

[0111] 3. In some embodiments, a specific third mold 500 is used to apply an external force to at least one end of the third mold 500, thereby simultaneously or sequentially extruding and deforming the first bottom surface 210 and the second bottom surface 220 of the blank 200, thereby forming a package 100 that is thicker at both ends and thinner in the middle. This embodiment can form the package 100 in a single process, saving process steps.

[0112] In the description of the present application, the directions or positional relationships indicated by words such as "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the exemplary directions or positional relationships shown in the accompanying drawings. They are for the convenience of describing or simplifying the description of the embodiments of the present application, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0113] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0114] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0115] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0116] The above is only part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the solution of the present application, other similar implementation methods based on the technical ideas of the present application also fall within the protection scope of the embodiments of the present application.

Claims

1. A method for forging a packaging piece, characterized in that: The packaging is part of the container and includes: At the designed temperature, based on the forging die, at least two surfaces of the blank are squeezed and deformed, and the blank is deformed as a whole to form a package; in the cross-section along the length of the package, the minimum dimension of the package perpendicular to the length direction is located outside the two ends of the package.

2. The forging method according to claim 1, characterized in that At a designed temperature, at least two surfaces of a blank are squeezed and deformed using a forging die, and the blank is deformed as a whole to form a package, comprising: At the designed temperature, based on at least two forging dies, at least two surfaces of the blank are extruded and deformed one by one in at least two steps, and other surfaces of the blank connected to and close to the extruded surface follow the deformation and expand outward to form the packaging.

3. The forging method according to claim 2, characterized in that At the design temperature, at least two surfaces of the blank are extruded and deformed one by one using at least two forging dies in at least two steps, and other surfaces of the blank connected to and adjacent to the extruded surfaces expand outward following the deformation to form the package, comprising: At the design temperature, using a first die, the first bottom surface of the blank is extruded and deformed toward the interior of the blank to form a first cavity, and a first sub-side surface of the side surface adjacent to the first bottom surface expands outward in response to the deformation; the blank is a solid structure and is cylindrical; Based on the second mold, the second bottom surface of the blank after the first bottom surface and the first sub-side surface are deformed is extruded inward to form a second cavity, or the second bottom surface of the blank after the first bottom surface and the first sub-side surface are deformed is extruded outside the blank to form a first convex hull, and the second sub-side surface close to the second bottom surface in the side surface follows the deformation and expands outward to obtain the packaging; the side surface of the packaging includes a hyperbolic surface.

4. The forging method according to claim 3, characterized in that Also includes: Based on the first mold, the first bottom surface of the blank is squeezed and deformed toward the inside of the blank to form a first cavity, and the side wall of the first cavity close to the cavity bottom is squeezed and deformed outward to form a positioning groove.

5. The forging method according to claim 1, wherein: At a designed temperature, at least two surfaces of a blank are squeezed and deformed using a forging die, and the blank is deformed as a whole to form a package, comprising: Based on the third mold, the first bottom surface and the second bottom surface of the blank are squeezed and deformed toward the inside of the blank to form a first cavity and a second cavity, and the first sub-side surface close to the first bottom surface and the second sub-side surface close to the second bottom surface in the side surface are both expanded outward following the deformation to obtain the package; the side surface of the package includes a hyperbolic surface.

6. The forging method according to claim 1, wherein: Include at least one of the following: The first bottom surface and the second bottom surface of the blank are opposite to each other; The material of the blank comprises metal or alloy; The outer diameters of the two ends of the package are larger than the outer diameter of the middle portion of the package; The maximum outer diameter of the package is greater than the outer diameter of the blank; The packaging includes a bottle cap of a cosmetic bottle or a wine bottle.

7. A forging die, characterized in that: Used to implement the forging method as described in any one of claims 3-4 above, comprising: a first die and a second die; The first mold comprises: a first upper mold and a first lower mold; the first upper mold has a first protruding structure, and the first lower mold is used to accommodate the blank; the first upper mold and the first lower mold are configured to align and close at a designed temperature to squeeze the blank so that the first bottom surface of the blank is squeezed and deformed toward the inside of the blank; The second mold includes: a second upper mold and a second lower mold; the second upper mold has a second convex structure, and the second lower mold is used to accommodate the blank after the first bottom surface is deformed; the second upper mold and the second lower mold are constructed to extrude the blank during the alignment and closing process at the design temperature, so that the second bottom surface of the blank is extruded and deformed toward the inside of the blank; or, the second mold includes: a second upper mold and a second lower mold; the second upper mold has a first concave structure, and the second lower mold is used to accommodate the blank after the first bottom surface is deformed; the second upper mold and the second lower mold are constructed to extrude the blank during the alignment and closing process at the design temperature, so that the second bottom surface of the blank is extruded and deformed toward the outside of the blank.

8. A forging die, characterized in that: For implementing the forging method as claimed in claim 5, comprising: a third die; The third mold includes: a third upper mold and a third lower mold; The third upper mold has a third convex structure, the third lower mold has a groove, and the groove has a third convex structure; the shape of the cavity formed by aligning and closing the third upper mold and the third lower mold is adapted to the shape of the packaging, and is constructed to align and close at a designed temperature so that the first bottom surface and the second bottom surface of the blank are both squeezed and deformed toward the inside of the blank.

9. A package, characterized in that: The forging method according to any one of claims 1 to 6 is used to manufacture the forging product, comprising: a middle portion and two end portions; At least a portion of the surface of each end portion is obtained by deforming at least two surfaces of the blank extruded by the forging die; In a cross section along the length of the package, the minimum dimension of the package perpendicular to the length direction is located outside the two ends of the package.

10. The package according to claim 9, characterized in that Include at least one of the following: The two ends are respectively provided with a first cavity and a second cavity; The inner wall of the first cavity is provided with a positioning groove; The two ends are symmetrically arranged; The side surface of the package is a hyperbolic surface; The two end portions respectively have a first cavity and a first convex hull.

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