CN115816768A - Helmet forming die - Google Patents

Abstract

The invention relates to the technical field of helmets, in particular to a helmet forming mold which comprises a first forming mold, a second forming mold and a third forming mold, wherein the first forming mold is provided with a first cavity for forming a first forming part of a helmet shell, the second forming mold is provided with a second cavity for forming a second forming part of the helmet shell, the third forming mold is provided with a third cavity for forming a third forming part of the helmet shell, and the helmet shell is formed by sequentially adopting the first forming mold, the second forming mold and the third forming cavity to obtain the first forming part, the second forming part and the third forming part which are integrally formed. The helmet shell formed by the helmet forming die does not need treatment such as surface paint spraying and the like, reduces processing procedures, can effectively control cost, and is favorable for meeting the requirement of environmental protection; the formed helmet shell has good surface wear resistance, does not fade or fade, and prolongs the service life of the helmet.

Description

A helmet forming mold

technical field

The invention relates to the technical field of helmets, in particular to a helmet molding die.

Background technique

Existing plastic helmets all adopt a molding body structure made of a mold cavity. After the helmet body is formed, the diversification of the appearance and color of the helmet is achieved by coating processes such as spraying paint on the body surface. However, using this helmet manufacturing process and surface treatment structure, not only the process is complicated, but most of them do not meet the environmental requirements. Based on this, it is urgent to provide an improved solution.

Contents of the invention

Based on the deficiencies of the prior art, the purpose of the invention is to provide a helmet molding die, which reduces the processing steps, can effectively control the cost, has good surface wear resistance, and prolongs the service life of the helmet.

In order to achieve the above object, the invention provides the following technical solutions:

The invention provides a helmet forming mold, comprising a first forming mold, a second forming mold and a third forming mold, the first forming mold is provided with a first cavity for forming a first forming part of a helmet shell, the The second forming mold is provided with a second cavity for forming the second forming portion of the helmet shell, and the third forming mold is provided with a third cavity for forming the third forming portion of the helmet shell,

The helmet shell is sequentially molded by the first molding die, the second molding die and the third molding cavity to obtain the integrally formed first molding part, the second molding part and the third molding part.

Wherein, the first molding die includes a first core frame, a first punch, and a first die; one side of the upper end of the first punch is provided with a first arc for molding the inner surface of the first molding part. raised surface;

The first mold core frame is provided with a mold core through hole for matching with the first punch; the first die is provided with a first arc-shaped groove surface for forming the outer surface of the first molding part;

After the first punch is installed and matched with the first core frame, the first arc-shaped convex surface is exposed outside the first core frame, and after the first core frame and the first die are closed, The first arc-shaped convex surface extends into the first arc-shaped groove surface, and the first arc-shaped convex surface and the first arc-shaped groove surface enclose the first arc-shaped convex surface for forming the first forming part. A cavity.

Wherein, the first die is provided with a first insert hole and a second insert hole, both of the first insert hole and the second insert hole communicate with the first cavity, and the first insert hole A first insert for forming a goggle mounting hole and a second insert hole for forming a second insert for a helmet liner mounting hole.

Wherein, the second molding die includes a second punch and a second die; the second punch is provided with a second arc-shaped convex surface; the second arc-shaped convex surface includes a The first placement surface of the forming part, and the first forming surface for forming the inner surface of the second forming part;

The second concave mold is provided with a second arc-shaped groove surface, and the second arc-shaped groove surface includes a second placement surface for placing the first molding part, and a second placement surface for molding the outer surface of the second molding part. Forming surface;

After the second punch and the second die are closed, the second arc-shaped convex surface extends into the second arc-shaped groove surface, and the second arc-shaped convex surface and the second arc-shaped The second cavity for molding the second molding part and the first placement cavity for placing the first molding part are enclosed between the groove surfaces.

Wherein, the second die is provided with a third insert hole, the third insert hole communicates with the second cavity, and the third insert hole is used to form the third insert of the goggle mounting hole.

Wherein, the third molding die includes a third male die and a third female die; the third male die is provided with a third arc-shaped convex surface;

The third arc-shaped convex surface includes a third placing surface for placing the second forming part, and a third forming surface for forming the inner surface of the third forming part;

One end of the third male mold located on the third placement surface is also provided with an accommodating groove for placing the first molding part; the third concave mold is provided with a third arc-shaped groove surface, and the third arc-shaped groove surface including a fourth placement surface for placing the second molding part, and a fourth molding surface for molding the outer surface of the third molding part;

After the third convex mold and the third concave mold are closed, the third arc-shaped convex surface extends into the third arc-shaped groove surface, and the third arc-shaped convex surface and the third arc-shaped convex surface The third cavity for molding the third molding part and the second placement cavity for placing the second molding part are enclosed between the groove surfaces.

Wherein, the third punch is provided with a fourth insert hole; the fourth insert hole communicates with the third cavity, and the fourth insert hole is used to form the fourth insert of the helmet liner installation hole

Beneficial effects of the invention:

The helmet molding mold adopts the first molding mold, the second molding mold and the third molding mold for three times of injection molding to obtain the integral molding structure of the helmet shell, and can arbitrarily deploy and shape the first molding part, the second molding part and the third molding part The color of raw materials can realize the diversification of color matching; and raw materials with different properties can also be selected to form the first forming part, the second forming part and the third forming part, so as to realize various styles of helmet products and increase the production capacity of products. The helmet shell formed by the helmet molding die does not need surface painting and other treatments, which reduces processing procedures, can effectively control costs, and is conducive to meeting environmental protection requirements; the formed helmet shell surface has good wear resistance and will not produce Fading and color loss prolongs the life of the helmet.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the first molding die described in the invention, the second molding die and the third molding die;

Fig. 2 is the schematic diagram of the three-dimensional structure of the first molding die described in the invention;

Fig. 3 is a schematic diagram of the three-dimensional structure of the first molding die according to the invention after hiding the first die;

Fig. 4 is a schematic diagram of another three-dimensional structure after the first molding die hides the first die according to the invention;

Fig. 5 is the schematic diagram of the three-dimensional structure of the first punch described in the invention;

Fig. 6 is a three-dimensional structural schematic diagram of the first mandrel frame according to the invention;

Fig. 7 is a schematic diagram of the three-dimensional structure of the first die described in the invention;

Fig. 8 is a schematic diagram of the three-dimensional structure of the second molding die described in the invention;

Fig. 9 is a schematic diagram of the three-dimensional structure of the second molding die hidden in the second die according to the invention;

Fig. 10 is a schematic diagram of another three-dimensional structure after the second molding die hides the second die according to the invention;

Fig. 11 is a schematic diagram of the three-dimensional structure of the second die described in the invention;

Fig. 12 is a schematic diagram of the three-dimensional structure of the third molding die described in the invention;

Fig. 13 is a schematic diagram of the three-dimensional structure of the third molding die hidden in the third die according to the invention;

Fig. 14 is a schematic diagram of another three-dimensional structure after the third molding die hides the third die according to the invention;

Fig. 15 is another three-dimensional structural schematic view of the third molding die hidden in the third die according to the invention;

Fig. 16 is a schematic diagram of the three-dimensional structure of the third concave mold described in the invention;

Fig. 17 is a schematic perspective view of the three-dimensional structure of the helmet described in the invention.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not intended to limit the invention. The invention will be described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1 to Fig. 17, a kind of helmet molding die comprises first molding die 10, second molding die 20 and the 3rd molding die 30, and described first molding die 10 is provided with the first molding for molding helmet shell The first cavity of the part 11, the second forming mold 20 is provided with the second cavity for forming the second forming part 12 of the helmet shell, and the third forming mold 30 is provided with the first cavity for forming the helmet shell. The third cavity of the third forming part 13; as shown by the arrow in Figure 1, the helmet shell adopts the first forming die 10, the second forming die 20 and the third forming cavity 301 successively to obtain the integrally formed first forming cavity. A forming part 11 , a second forming part 12 and a third forming part 13 .

This helmet molding die adopts the first molding die 10, the second molding die 20 and the third molding die 30 three injection moldings to obtain the integrated molding structure of the helmet shell, which can be used for the first molding part 11, the second molding part 12 and the third molding part. The forming part 13 can arbitrarily allocate the color of the forming material to realize the diversification of color matching; and you can also choose the first forming part 11, the second forming part 12 and the third forming part 13 with different performances to realize various styles of helmet products, Improve product production capacity.

The helmet shell formed by the helmet molding die does not need surface painting and other treatments, which reduces processing procedures, can effectively control costs, and is conducive to meeting environmental protection requirements; the formed helmet shell surface has good wear resistance and will not produce Fading and color loss prolongs the life of the helmet.

In this embodiment, the first molding die 10 includes a first core frame 101, a first punch 102 and a first die 103; one side of the upper end of the first punch 102 is provided with a The first arc-shaped convex surface 1021 on the inner surface of the molding part 11; the first core frame 101 is provided with a core through hole 1011 for matching with the first punch 102; the first die 103 is provided with a useful Forming the first arc-shaped groove surface 1031 on the outer surface of the first forming part 11;

After the first punch 102 is installed and matched with the first core frame 101, the first arc-shaped convex surface 1021 is exposed outside the first core frame 101, and the first core frame 101 and the first concave After the mold 103 is closed, the first arc-shaped convex surface 1021 extends into the first arc-shaped groove surface 1031, and the first arc-shaped convex surface 1021 and the first arc-shaped groove surface 1031 are surrounded by a It is used to form the first cavity of the first molding part 11 .

Further, the first die 103 is provided with a first insert hole 1032 and a second insert hole 1033, and both the first insert hole 1032 and the second insert hole 1033 communicate with the first cavity, so The first insert hole 1032 is used to form the first insert of the goggles mounting hole 15 , and the second insert hole 1033 is used to form the second insert of the helmet liner mounting hole 14 .

In this embodiment, the first forming mold 10 adopts three templates of the first core frame 101, the first punch 102 and the first concave mold 103 to form the first cavity, which is convenient for opening and closing the mold, and is also convenient for mold opening and closing. processing. Simultaneously, adopt the helmet liner installation hole 14 of the head shell shell front end of the second insert hole 1033 molding, be convenient to the installation of liner; Adopt the upper part or all of the first insert hole 1032 molding goggles installation hole 15, be conducive to Assembly of goggles.

In this embodiment, the second molding die 20 includes a second male die 201 and a second concave die 202; the second male die 201 is provided with a second arc-shaped convex surface 2011; The starting surface 2011 includes a first placement surface 20111 for placing the first molding part 11, and a first molding surface 20112 for molding the inner surface of the second molding part 12; the second die 202 is provided with a second arc-shaped groove Surface 2021, the second arc-shaped groove surface 2021 includes a second placement surface 20211 for placing the first molding part 11, and a second molding surface 20212 for molding the outer surface of the second molding part 12; After the second convex mold 201 and the second concave mold 202 are clamped, the second arc-shaped convex surface 2011 extends into the second arc-shaped groove surface 2021, and the second arc-shaped convex surface 2011 and the second The arc-shaped groove surface 2021 encloses a second cavity for forming the second forming part 12 and a first cavity for placing the first forming part 11 .

Further, the second die 202 is provided with a third insert hole 2022, the third insert hole 2022 communicates with the second cavity, and the third insert hole 2022 is used to form the goggles mounting hole 15 The third insert in the lower section.

In this embodiment, the second molding die 20 adopts two templates of the second male mold 201 and the second concave mold 202 to form the second cavity and the first placement cavity, and the formed first molding part 11 is placed in the After the first cavity is placed, the rubber material is injected into the second cavity, and the second molding part 12 integrally formed with the first molding part 11 is obtained after the rubber material is formed. When forming, the third insert hole 2022 is used to form the lower part or all of the goggle mounting hole 15, which is beneficial to the assembly of the goggles. The second molding die 20 is compact in structure, convenient to open and close, and has good molding effect.

In this embodiment, the third molding die 30 includes a third convex mold 301 and a third concave mold 302; the third convex mold 301 is provided with a third arc-shaped convex surface 3011; The starting surface 3011 includes a third placing surface 30111 for placing the second forming part 12, and a third forming surface 30112 for forming the inner surface of the third forming part 13;

One end of the third male mold 301 located on the third placement surface 30111 is also provided with an accommodating groove 3012 for placing the first molding part 11; the third concave mold 302 is provided with a third arc-shaped groove surface 3021, and the first The tri-arc groove surface 3021 includes a fourth placing surface 30211 for placing the second forming part 12, and a fourth forming surface 30212 for forming the outer surface of the third forming part 13;

After the third male mold 301 and the third concave mold 302 are closed, the third arc-shaped convex surface 3011 extends into the third arc-shaped groove surface 3021, and the third arc-shaped convex surface 3011 A third cavity for molding the third molding part 13 and a second cavity for placing the second molding part 12 are enclosed between the third arc-shaped groove surface 3021 .

Further, the third punch 301 is provided with a fourth insert hole 3022; the fourth insert hole 3022 communicates with the third cavity, and the fourth insert hole 3022 is used to form a helmet liner mounting hole 14 for the fourth insert.

In this embodiment, the third molding die 30 uses two templates of the third punch 301 and the third die 302 to form the third cavity and the second placement cavity, and the third punch 301 is also provided with Accommodating groove 3012. Place the formed first molding part 11 in the accommodating groove 3012, place the second molding part 12 in the second placement cavity, and inject the rubber into the third cavity, and wait for the rubber to be formed and combined. The second forming part 12 integrally forms the third forming part 13 , thereby obtaining the integrally forming first forming part 11 , the second forming part 12 and the third forming part 13 , that is, the integrally formed head shell shell. During the molding process, the helmet bushing installation hole 14 at the rear end of the headshell shell is formed by the fourth insert to facilitate the installation of the bushing.

The above is only a preferred embodiment of the invention, and does not limit the invention in any form. Although the invention is disclosed as above with a preferred embodiment, it is not used to limit the invention. Within the scope of the technical solution of the invention, when using the technical content disclosed above to make some changes or modifications to equivalent embodiments with equivalent changes, but if it does not deviate from the content of the technical solution of the invention, the technology of the invention refers to any simple modification made to the above embodiments , equivalent changes and modifications all belong to the scope of the technical solution of the invention.

Claims (7)

1. A helmet forming die which characterized in that: comprises a first forming die (10), a second forming die (20) and a third forming die (30), wherein the first forming die (10) is provided with a first cavity for forming a first forming part (11) of the helmet shell, the second forming die (20) is provided with a second cavity for forming a second forming part (12) of the helmet shell, the third forming die (30) is provided with a third cavity for forming a third forming part (13) of the helmet shell,

the helmet shell is formed by sequentially adopting a first forming die (10), a second forming die (20) and a third forming cavity (301) to obtain a first forming part (11), a second forming part (12) and a third forming part (13) which are integrally formed.

2. The helmet forming mold of claim 1, wherein: the first forming die (10) comprises a first die core frame (101), a first male die (102) and a first female die (103);

a first arc-shaped convex surface (1021) for forming the inner surface of the first forming part (11) is arranged on one side surface of the upper end of the first male die (102);

the first die core frame (101) is provided with a die core through hole (1011) matched with the first male die (102);

the first female die (103) is provided with a first arc-shaped groove surface (1031) for molding the outer surface of the first molding part (11);

after the first male die (102) is installed and matched with the first die core frame (101), the first arc-shaped convex surface (1021) is exposed outside the first die core frame (101), after the first die core frame (101) and the first female die (103) are closed, the first arc-shaped convex surface (1021) stretches into the first arc-shaped groove surface (1031), and the first cavity for forming the first forming part (11) is formed between the first arc-shaped convex surface (1021) and the first arc-shaped groove surface (1031).

3. The helmet forming mold of claim 2, wherein: first die (103) is provided with first insert hole (1032) and second insert hole (1033), first insert hole (1032) and second insert hole (1033) all communicate with first die cavity, first insert hole (1032) are used for the first insert of shaping visor mounting hole (15), second insert hole (1033) are used for the second insert of shaping helmet bush mounting hole (14).

4. The helmet forming mold of claim 1, wherein: the second forming die (20) comprises a second male die (201) and a second female die (202); the second male die (201) is provided with a second arc-shaped convex surface (2011);

the second arc-shaped convex surface (2011) comprises a first placing surface (20111) for placing the first forming part (11) and a first forming surface (20112) for forming the inner surface of the second forming part (12);

the second concave die (202) is provided with a second arc-shaped groove surface (2021), and the second arc-shaped groove surface (2021) comprises a second placing surface (20211) for placing the first forming part (11) and a second forming surface (20212) for forming the outer surface of the second forming part (12);

after the second male die (201) and the second female die (202) are matched, the second arc-shaped convex surface (2011) extends into the second arc-shaped groove surface (2021), and the second cavity for forming the second forming part (12) and the first placing cavity for placing the first forming part (11) are enclosed between the second arc-shaped convex surface (2011) and the second arc-shaped groove surface (2021).

5. The helmet forming mold according to claim 4, wherein: the second concave die (202) is provided with a third insert hole (2022), the third insert hole (2022) is communicated with the second cavity, and the third insert hole (2022) is used for forming a third insert of the goggle mounting hole (15).

6. The helmet forming mold of claim 1, wherein: the third forming die (30) comprises a third male die (301) and a third female die (302);

the third male die (301) is provided with a third arc-shaped convex surface (3011);

the third arc-shaped convex surface (3011) comprises a third placing surface (30111) for placing the second forming part (12) and a third forming surface (30112) for forming the inner surface of the third forming part (13);

one end of the third male die (301) positioned on the third placing surface (30111) is also provided with a containing groove (3012) for placing the first forming part (11);

the third concave die (302) is provided with a third arc-shaped groove surface (3021), and the third arc-shaped groove surface (3021) comprises a fourth placing surface (30211) for placing the second forming part (12) and a fourth forming surface (30212) for forming the outer surface of the third forming part (13);

after the third male die (301) and the third female die (302) are matched, the third arc-shaped convex surface (3011) extends into the third arc-shaped groove surface (3021), and a third cavity for forming a third forming portion (13) and a second placing cavity for placing a second forming portion (12) are enclosed between the third arc-shaped convex surface (3011) and the third arc-shaped groove surface (3021).

7. The helmet forming mold according to claim 6, wherein: the third male die (301) is provided with a fourth insert hole (3022); the fourth insert hole (3022) is in communication with the third cavity, and the fourth insert hole (3022) is for molding a fourth insert for a helmet liner mounting hole (14).

Images