Casting mold and manufacturing method of packaging piece

Abstract

The invention provides a casting mold and a manufacturing method of a packaging piece. The casting mold is used for producing the packaging part and comprises a first mold body with a groove and a second mold body with a protruding part. The part, away from the bottom of the groove, of the protruding part and the notch of the groove are the same in shape and size. And the first mold and the second mold are closed at the designed temperature, so that the protruding part extends into the groove, a die-casting space is formed between the protruding part and the inner wall of the groove, and the blank in the groove is pressed into a packaging piece matched with the die-casting space in shape. Waste materials generated in the packaging piece manufacturing process can be reduced, and resources are saved.

Description

Technical Field

[0001] The present application relates to the field of mechanical manufacturing technology, and in particular, to a method for manufacturing a casting mold and a packaging component. Background Art

[0002] As people's material needs continue to increase, a large number of products require packaging. For example, beauty products, various types of wine, etc. require the production of various types of caps, such as bottle caps.

[0003] In the prior art, a large amount of waste is generated during the production of packaging, resulting in a waste of resources. Summary of the Invention

[0004] In view of the shortcomings of the existing methods, this application proposes a casting mold and a method for manufacturing packaging parts to solve the technical problem of a large amount of waste generated during the manufacturing process of packaging parts in the related technology.

[0005] In a first aspect, an embodiment of the present application provides a casting mold for producing a package, comprising: a first mold having a groove, and a second mold having a protrusion;

[0006] The portion of the protrusion away from the bottom of the groove has the same shape and size as the notch of the groove;

[0007] The first mold and the second mold are closed at a designed temperature so that the protrusion extends into the groove and forms a die-casting space between the protrusion and the inner wall of the groove, so as to press the blank in the groove into a package having a shape matching that of the die-casting space.

[0008] In a possible implementation manner, an inner contour of the groove away from the notch is the same as an outer contour of the package.

[0009] In a possible implementation, a first protrusion is provided at the bottom of the groove;

[0010] The die-casting space includes a first accommodating space located between the side wall of the first protrusion and the side wall of the groove, and a second accommodating space located between the first protrusion and the raised portion, the first accommodating space being used to form the side wall of the package, and the second accommodating space being used to form the bottom wall of the package.

[0011] In a possible implementation, the groove includes a first groove and a second groove that are sequentially away from the bottom of the groove;

[0012] A portion of the first groove is used to form the first accommodation space, and another portion of the first groove and the second groove are used to form the second accommodation space;

[0013] A dimension of the first groove perpendicular to the die-casting direction is smaller than a dimension of the second groove perpendicular to the die-casting direction.

[0014] In a possible implementation, the sidewall of the first groove gradually expands outward in a direction approaching the second groove.

[0015] In a possible implementation, an outer contour of the protrusion near the bottom of the groove is the same as an inner contour of the package.

[0016] In a possible implementation, the protrusion includes a first protrusion structure and a second protrusion structure;

[0017] The die-casting space includes a first accommodating space located between the side wall of the first protruding structure and the side wall of the groove, and a second accommodating space located between the bottom wall of the first protruding structure and the bottom wall of the groove, the first accommodating space is used to form the side wall of the package, and the second accommodating space is used to form the bottom wall of the package.

[0018] In a possible implementation, the second mold further includes a base portion provided on one side of the protruding portion, and the base portion is configured to contact the surface of the first mold when pressing is completed.

[0019] In a second aspect, an embodiment of the present application provides a method for manufacturing a package, using the aforementioned casting mold, comprising:

[0020] Placing the blank into the groove of the first mold; the casting mold includes the first mold and the second mold;

[0021] The first mold and the second mold are closed at a designed temperature so that the protrusion of the second mold extends into the groove of the first mold and forms a die-casting space between the protrusion and the inner wall of the groove, so as to press the blank into a package that matches the shape of the die-casting space.

[0022] In one possible implementation, placing the blank in the groove of the first mold includes:

[0023] The first mold is placed with the groove facing upward, and a blank is placed in the groove; the weight percentage of impurities in the blank is less than 10%;

[0024] The method includes extending the protrusion of the second mold into the groove of the first mold to form a die-casting space between the protrusion and the inner wall of the groove, so as to press the blank into a packaging piece having a shape matching the die-casting space, comprising:

[0025] placing the second mold above the first mold with the raised portion of the second mold facing the first mold;

[0026] The second mold is moved toward the first mold so that the protrusion of the second mold extends into the groove of the first mold and presses the blank into a package matching the shape of the die-casting space.

[0027] The beneficial technical effects brought about by the technical solutions provided in the embodiments of the present application include:

[0028] The casting mold provided in the embodiment of the present application has the following characteristics: since the first mold and the second mold are closed at the design temperature, the protrusion extends into the groove and forms a die-casting space between the protrusion and the inner wall of the groove, that is, the die-casting space is completely located in the groove, and since the part of the protrusion away from the bottom of the groove is the same shape and equal in size to the notch of the groove, the protrusion can just block the notch of the groove, thereby preventing the blank from being squeezed out of the pressing space to form burrs, reducing the waste generated in the process of manufacturing packaging, and saving resources.

[0029] 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

[0030] 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:

[0031] Figure 1 A schematic structural diagram of a casting mold in an open mold state provided in an embodiment of the present application;

[0032] Figure 2 A schematic structural diagram of a casting mold in a closed state provided in an embodiment of the present application;

[0033] Figure 3 A schematic structural diagram of a first mold of a casting mold provided in an embodiment of the present application;

[0034] Figure 4 A schematic structural diagram of another casting mold in an open mold state provided in an embodiment of the present application;

[0035] Figure 5 A schematic structural diagram of another casting mold in a closed state provided in an embodiment of the present application;

[0036] Figure 6 A schematic flow chart of a method for manufacturing a packaging member provided in an embodiment of the present application.

[0037] Description of reference numerals:

[0038] 100-casting mold;

[0039] 11- first mold;

[0040] 111-groove; 111a-first groove; 111b-second groove;

[0041] 112-first bump;

[0042] 20- first accommodation space;

[0043] 30- second storage space;

[0044] 12- second mold;

[0045] 121-protrusion; 121a-first protrusion structure; 121b-second protrusion structure;

[0046] 122-Basic Department. DETAILED DESCRIPTION

[0047] 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.

[0048] 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, elements and / or components described, but does not exclude the implementation of other features, information, data, steps, operations, elements, components and / or combinations thereof 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".

[0049] 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.

[0050] In the related art, in the mold used to produce packaging, the groove of the upper mold is used to form the side wall of the bottle cap, and the groove of the lower mold is used to form the bottom wall of the bottle cap, resulting in a circle of burrs formed at the connection between the side wall and the bottom wall. In the process of forming the bottle cap from the blank, a lot of waste is generated, resulting in a waste of resources, and additional processes are required to remove the burrs subsequently, which is costly.

[0051] 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.

[0052] The embodiment of the present application provides a casting mold 100 for producing packaging, such as Figures 1 to 5 As shown, it includes: a first mold 11 having a groove 111 and a second mold 12 having a protrusion 121.

[0053] The portion of the protrusion 121 away from the bottom of the groove 111 has the same shape and size as the notch of the groove 111 .

[0054] The first mold 11 and the second mold 12 are closed at the design temperature so that the protrusion 121 extends into the groove 111 and forms a die-casting space between the protrusion 121 and the inner wall of the groove 111, so as to press the blank in the groove 111 into a package matching the shape of the die-casting space.

[0055] Since the first mold 11 and the second mold 12 are closed at the design temperature, the protrusion 121 extends into the groove 111 and forms a die-casting space between the protrusion 121 and the inner wall of the groove 111, that is, the die-casting space is completely located in the groove 111, and since the part of the protrusion 121 away from the bottom of the groove 111 has the same shape and size as the notch of the groove 111, the protrusion 121 can just block the notch of the groove 111, thereby preventing the blank from being squeezed out of the pressing space to form burrs, improving the problem of a large amount of waste generated in the process of manufacturing packaging, saving resources, and at the same time, no subsequent process is required to remove burrs, thereby reducing production costs.

[0056] In some embodiments, the design temperature can be room temperature, that is, the casting mold 100 uses a cold forging process to produce the package. Of course, the design temperature can also be other temperatures, such as a temperature higher than room temperature, in which case the casting mold 100 uses a hot forging process to produce the package.

[0057] In some embodiments, the package may include a first bottom wall, and a first side wall disposed around the first bottom wall.

[0058] In practical applications, the packaging may be a cover, such as a bottle cap, such as a cosmetic bottle cap or a wine bottle cap.

[0059] See also Figure 1 and Figure 2 In some embodiments, the inner contour of the groove 111 away from the notch is the same as the outer contour of the package. By designing the inner contour of the groove 111, a package with a specific outer contour can be formed, thereby forming packages of different shapes.

[0060] Continue to see Figure 1 and Figure 2In some embodiments, a first protrusion 112 is provided at the bottom of the groove 111; the die-casting space includes a first accommodating space 20 located between the side wall of the first protrusion 112 and the side wall of the groove 111, and a second accommodating space 30 located between the first protrusion 112 and the raised portion 121. The first accommodating space 20 is used to form the side wall of the package, and the second accommodating space 30 is used to form the bottom wall of the package.

[0061] By setting the first protrusion 112, the side walls and top wall of the first protrusion 112, the bottom wall of the raised portion 121 and the side walls and bottom wall of the groove 111 are used to jointly enclose a die-casting space. The first protrusion 112 corresponds to the hollow structure of the package, so that the blank in the groove 111 can be pressed into a package with a hollow structure such as a bottle cap.

[0062] Correspondingly, the raised portion 121 can be a structure with consistent width (the dimension perpendicular to the depth direction of the groove 111), such as a cylindrical shape. The raised portion 121 has the same shape and size as the notch of the groove 111, so that the raised portion 121 can just block the notch of the groove 111, thereby preventing the blank from being squeezed out of the pressing space to form burrs.

[0063] See also Figure 3 In some embodiments, the groove 111 includes a first groove 111 a and a second groove 111 b that are sequentially away from the bottom of the groove 111 .

[0064] A portion of the first groove 111 a is used to form a first receiving space 20 , and another portion of the first groove 111 a and the second groove 111 b are used to form a second receiving space 30 .

[0065] The dimension of the first groove 111 a perpendicular to the die-casting direction is smaller than the dimension of the second groove 111 b perpendicular to the die-casting direction.

[0066] The dimension perpendicular to the die-casting direction is the dimension in the direction parallel to the notch of the groove 111 .

[0067] Such an arrangement enables the outer contour of the bottom wall of the package to be larger than the outer contour of the side wall of the package, thereby improving the convenience of opening or closing the package such as the bottle cap during use.

[0068] In practical applications, a portion of the second groove 111b is used to form the bottom wall of the package, and the other portion is used to accommodate the blank. Optionally, the portion of the second groove 111b near the notch of the groove 111 is used to accommodate the blank and is substantially consistent with the outer contour of the blank (i.e., the portion of the second groove 111b near the notch of the groove 111 has the same shape as the blank, and the portion of the second groove 111b near the notch of the groove 111 is slightly larger than the size of the blank). This allows the package to be formed with minimal changes to the blank.

[0069] Continue to see Figure 3 Optionally, the sidewall of the first groove 111a gradually expands outwards in the direction close to the second groove 111b. Such an arrangement can guide the blank to flow into the first receiving space 20, which is beneficial to the forming of the package.

[0070] Optionally, the first protrusion 112 may be partially rounded away from the bottom of the bottle cap groove, which may also facilitate the molding of the package.

[0071] See also Figure 4 and Figure 5 In other embodiments, the outer contour of the protrusion 121 near the bottom of the groove 111 is the same as the inner contour of the package. By designing the outer contour of the protrusion 121, a package with a specific inner contour can be formed, thereby forming packages of different shapes.

[0072] Continue to see Figure 4 and Figure 5 Specifically, the raised portion 121 may include a first raised structure 121 a and a second raised structure 121 b .

[0073] The die-casting space includes a first accommodating space 20 located between the side wall of the first protrusion structure 121a and the side wall of the groove 111, and a second accommodating space 30 located between the bottom wall of the first protrusion structure 121a and the bottom wall of the groove 111. The first accommodating space 20 is used to form the side wall of the package, and the second accommodating space 30 is used to form the bottom wall of the package.

[0074] The side walls and bottom walls of the first protruding structure 121a, the bottom wall of the second protruding structure 121b, and the side walls and bottom walls of the groove 111 are used to enclose a die-casting space. The first protruding structure 121a corresponds to the hollow structure of the package, so that the blank in the groove 111 can be pressed into a package with a hollow structure such as a bottle cap.

[0075] Correspondingly, the second protruding structure 121b has the same shape and size as the notch of the groove 111, so that the second protruding structure 121b can just block the notch of the groove 111, thereby preventing the blank from being squeezed out of the pressing space to form burrs.

[0076] See also Figures 1 to 5 In practical applications, the second mold 12 may further include a base portion 122 disposed on one side of the raised portion 121. The base portion 122 is configured to contact the surface of the first mold 11 upon completion of the pressing process. This configuration allows the base portion 122 to limit the depth of the raised portion 121 extending into the recess 111, ensuring that the blank is fully pressed, improving the quality of the package, and preventing damage to the first mold 11 or the second mold 12 due to excessive pressing.

[0077] Ideally, when the blank is fully pressed into a package, the base portion 122 just contacts the surface of the first mold 11. In other feasible embodiments, the depth of the raised portion 121 can be appropriately increased as needed to ensure that the blank is fully pressed and improve the quality of the package.

[0078] Of course, the second mold 12 may also not include the base portion 122, but directly control the depth of the protrusion 121 extending into the groove 111, so as to avoid damaging the first mold 11 or the second mold 12 while the blank is fully pressed.

[0079] In some embodiments, the first mold 11 may be a lower mold, the second mold 12 may be an upper mold, and the groove 111 is provided on the upper surface of the first mold 11 to facilitate placement of the blank in the groove 111 .

[0080] In some embodiments, the blank is made of a deformable material. In practical applications, a blank with an impurity level (percentage by weight of impurities) less than 10% can be selected, and optionally, a blank with an impurity level less than 5% can be selected.

[0081] By using the casting mold 100 , packaging pieces with a minimum wall thickness of about 1 mm can be produced with high manufacturing precision.

[0082] The beneficial technical effects brought about by the technical solutions provided in the embodiments of the present application include:

[0083] The casting mold 100 provided in the embodiment of the present application has the following characteristics: since the first mold 11 and the second mold 12 are closed at the design temperature, the protrusion 121 extends into the groove 111 and forms a die-casting space with the inner wall of the groove 111, that is, the die-casting space is completely located in the groove 111, and since the part of the protrusion 121 away from the bottom of the groove 111 has the same shape and size as the notch of the groove 111, the protrusion 121 can just block the notch of the groove 111, thereby preventing the blank from being squeezed out of the pressing space to form burrs, reducing the waste generated in the process of manufacturing packaging, and saving resources.

[0084] Based on the same inventive concept, the present invention provides a method for manufacturing a packaging piece, using the casting mold as described above. Figure 6 As shown, the process includes the following steps S101 to S102:

[0085] S101: placing the blank in the groove of the first mold; the casting mold includes a first mold and a second mold.

[0086] In some embodiments, the first mold may be a lower mold, and step S101 may include: placing the first mold with the groove facing upward, and placing the blank in the groove; the weight proportion of impurities in the blank is less than 10%.

[0087] S102: The first mold and the second mold are closed at a designed temperature so that the protrusion of the second mold extends into the groove of the first mold and forms a die-casting space between the protrusion and the inner wall of the groove, so as to press the blank into a packaging piece that matches the shape of the die-casting space.

[0088] In some embodiments, the design temperature can be room temperature, that is, the casting mold uses a cold forging process to produce the package. Of course, the design temperature can also be other temperatures, such as a temperature higher than room temperature, in which case the casting mold uses a hot forging process to produce the package.

[0089] In some embodiments, the second mold may be an upper mold, and step S102 may include the following sub-steps:

[0090] S21: placing the second mold above the first mold, with the raised portion of the second mold facing the first mold.

[0091] S22: Move the second mold toward the first mold so that the protrusion of the second mold extends into the groove of the first mold and presses the blank into a package matching the shape of the die-casting space.

[0092] Optionally, after step S102 , a post-processing step may be included to remove the material and carve out other patterns such as a LOGO.

[0093] This embodiment is an embodiment of a method for manufacturing a packaging piece corresponding to the aforementioned casting mold. Specific details and technical effects can be referred to the aforementioned embodiment and will not be repeated here.

[0094] Those skilled in the art will appreciate that the steps, measures, and schemes in the various operations, methods, and processes discussed in this application may be interchanged, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and schemes in the related art that are similar to those disclosed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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 casting mold for producing packaging, characterized in that: include: a first mold having a recess, and a second mold having a protrusion; The portion of the protrusion away from the bottom of the groove has the same shape and size as the notch of the groove; The first mold and the second mold are closed at a designed temperature so that the protrusion extends into the groove and forms a die-casting space between the protrusion and the inner wall of the groove, so as to press the blank in the groove into a package having a shape matching that of the die-casting space.

2. The casting mold according to claim 1, characterized in that The inner contour of the groove away from the notch is the same as the outer contour of the packaging.

3. The casting mold according to claim 2, characterized in that A first protrusion is provided at the bottom of the groove; The die-casting space includes a first accommodating space located between the side wall of the first protrusion and the side wall of the groove, and a second accommodating space located between the first protrusion and the raised portion, the first accommodating space being used to form the side wall of the package, and the second accommodating space being used to form the bottom wall of the package.

4. The casting mold according to claim 3, characterized in that The groove includes a first groove and a second groove that are sequentially away from the bottom of the groove; A portion of the first groove is used to form the first accommodation space, and another portion of the first groove and the second groove are used to form the second accommodation space; A dimension of the first groove perpendicular to the die-casting direction is smaller than a dimension of the second groove perpendicular to the die-casting direction.

5. The casting mold according to claim 4, characterized in that The sidewall of the first groove gradually expands outwards in a direction approaching the second groove.

6. The casting mold according to claim 1, characterized in that The outer contour of the protrusion near the bottom of the groove is the same as the inner contour of the package.

7. The casting mold according to claim 6, characterized in that The raised portion includes a first raised structure and a second raised structure; The die-casting space includes a first accommodating space located between the side wall of the first protruding structure and the side wall of the groove, and a second accommodating space located between the bottom wall of the first protruding structure and the bottom wall of the groove, the first accommodating space is used to form the side wall of the package, and the second accommodating space is used to form the bottom wall of the package.

8. The casting mold according to claim 1, characterized in that The second mold further includes a base portion provided on one side of the protruding portion, and the base portion is configured to contact a surface of the first mold when pressing is completed.

9. A method for manufacturing a package, using the casting mold according to any one of claims 1 to 8, characterized in that: include: Placing the blank into the groove of the first mold; the casting mold includes the first mold and the second mold; The first mold and the second mold are closed at a designed temperature so that the protrusion of the second mold extends into the groove of the first mold and forms a die-casting space between the protrusion and the inner wall of the groove, so as to press the blank into a package that matches the shape of the die-casting space.

10. The method for manufacturing a package according to claim 9, wherein: Placing the blank into the groove of the first mold comprises: The first mold is placed with the groove facing upward, and a blank is placed in the groove; the weight percentage of impurities in the blank is less than 10%; The method includes extending the protrusion of the second mold into the groove of the first mold to form a die-casting space between the protrusion and the inner wall of the groove, so as to press the blank into a packaging piece having a shape matching the die-casting space, comprising: placing the second mold above the first mold with the raised portion of the second mold facing the first mold; The second mold is moved toward the first mold so that the protrusion of the second mold extends into the groove of the first mold and presses the blank into a package matching the shape of the die-casting space.

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