New energy hydrogen storage tank inner container injection molding mold

Abstract

The utility model relates to the technical field of injection molds, and provides a new energy hydrogen storage tank inner container injection molding mold which comprises a lower mold assembly and an upper mold assembly, the upper mold assembly is provided with a cylindrical groove, the lower mold assembly is provided with a molding column, the molding column is used for being arranged in the cylindrical groove to form a molding space, and the molding space is provided with a plurality of cavities. The upper mold assembly is provided with an injection molding opening, the injection molding opening is communicated with the molding space, the upper mold assembly is provided with an outer cooling passage, the molding column is internally provided with an inner cooling passage, and the inner cooling passage comprises a plurality of sections of cooling branches which are sequentially arranged in the direction far away from the injection molding opening. By means of the technical scheme, the problem that in the prior art, an injection mold is difficult to meet hydrogen storage tank inner container forming and efficient demolding is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, specifically, relate to a new energy hydrogen storage tank inner bag injection molding mold. BACKGROUND

[0002] With the rapid development of hydrogen fuel cell, high energy density engine, the development demand of energy storage and transportation equipment also increases, especially the clean and green energy storage and transportation equipment, such as hydrogen storage and transportation equipment. The most mature, the lowest cost and the highest safety energy storage and transportation technology in current international application is high pressure gaseous storage and transportation technology. The most widely used high pressure gaseous storage and transportation technology is storage and transportation bottle. The storage and transportation bottle has lower material density by replacing the inner bag with plastic inner bag, and higher gas storage density can be obtained in storage and transportation, thereby improving economic benefits.

[0003] In the prior art, the inner bag of the storage and transportation bottle is formed by injection molding, but due to the relatively long and thin inner wall of the inner bag, demolding after forming is relatively difficult, and there is no injection molding mold in the prior art that can realize good forming and efficient and complete demolding. Based on the above problems, a new injection molding mold is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model provides a new energy hydrogen storage tank inner bag injection molding mold, solve the problem that injection molding mold in prior art is difficult to meet hydrogen storage tank inner bag forming and efficient demolding.

[0005] The technical scheme of the utility model is as follows:

[0006] A new energy hydrogen storage tank inner bag injection molding mold, the injection molding mold includes lower die assembly, upper die assembly, the upper die assembly has cylindrical recess, the lower die assembly has forming column, the forming column is used to be arranged in the cylindrical recess to form forming space, the upper die assembly is provided with injection port, the injection port is communicated with the forming space, the upper die assembly is provided with outer cooling channel, the forming column is provided with inner cooling channel, wherein, the inner cooling channel includes a plurality of cooling branches arranged in sequence in the direction away from the injection port.

[0007] The forming column includes forming core sleeve, core top cover and cooling core body, the cooling core body is arranged on the inner side of the forming core sleeve, a plurality of cooling branches are arranged in sequence on the cooling core body in the direction away from the injection port, the core top cover is arranged on the top of the forming core sleeve, and the core top cover is semispherical.

[0008] The inner groove is arranged on the center of the core top cover, the forming column further comprises a plurality of air top units, the plurality of air top units are arranged on the top of the core top cover and are distributed at equal intervals in the circumference, the core top cover is connected with the air top units, and the core top cover is movable along the axial direction of the forming core sleeve.

[0009] The lower mold assembly further comprises a demolding unit, the demolding unit comprises a telescopic driving element and a demolding push plate, the demolding push plate is sleeved on the forming column, the upper mold assembly abuts against the demolding push plate, and the telescopic driving element is connected with the demolding push plate to drive the demolding push plate to move.

[0010] The demolding push plate comprises a push plate base and a demolding sleeve ring, the demolding sleeve ring is detachably arranged on the push plate base, the telescopic driving element is connected with the push plate base, and the forming column passes through the demolding sleeve ring.

[0011] The lower mold assembly further comprises a lower fixed plate and a lower mold base, the lower mold base is arranged on the lower fixed plate, one end of the telescopic driving element is fixedly arranged on the lower fixed plate or the lower mold base, and the telescopic end of the telescopic driving element is connected with the push plate base.

[0012] The lower mold assembly further comprises a positioning pin, the sidewall of the forming core sleeve is provided with a first positioning hole, the lower mold base is provided with a second positioning hole, and the positioning pin passes through the second positioning hole and is inserted into the first positioning hole.

[0013] The upper mold assembly comprises an upper fixed plate, a first upper mold unit and a second upper mold unit, the first upper mold unit and the second upper mold unit are sequentially arranged on the upper fixed plate in a direction away from the upper fixed plate, the first upper mold unit and the second upper mold unit are both provided with a sub-groove, two sub-grooves are connected in series to form the cylindrical groove, the first upper mold unit and the second upper mold unit are both provided with an outer cooling channel, and the injection port is arranged on the upper fixed plate and communicates with the sub-groove of the first upper mold unit.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] The utility model discloses a new energy hydrogen storage tank inner bag injection mould, be provided with the cylindrical recess in upper die assembly, be provided with the forming post in lower die assembly, and the forming post is inserted into the cylindrical recess after the die assembly of upper die assembly and lower die assembly closes, and there is the gap between the inner wall of cylindrical recess and forming post, forms the forming space, and the injection port of upper die assembly injects the forming material into the injection space, in order to can quick -forming and easily demoulding not occupy, set up the cooling passage of inside cooling on the forming post and cool down, simultaneously, set up the cooling passage of outside cooling on upper die assembly and cool down, form two -sided cooling, further, in order to adapt inside heat dissipation, the cooling branch of inside cooling on the forming post is sequentially provided with a plurality of sections in the direction away from the injection port, can pass into the cooling liquid of different temperature and form the cooling area of different temperature to the inner bag can synchronous cooling forming, avoid adhesion, also improved the forming quality of inner bag. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further explained in detail in connection with the drawings and specific embodiment.

[0017] Fig. 1 It is structure schematic view of the utility model;

[0018] Fig. 2 It is sectional structure schematic view of the utility model;

[0019] Fig. 3 It is structure inside schematic view of the utility model;

[0020] In the drawing: 1, lower die assembly, 2, upper die assembly, 3, cylindrical recess, 4, forming post, 5, injection port, 6, outside cooling passage, 7, inside cooling passage, 8, forming core cover, 9, core top cap, 10, cooling core body, 11, inner recess, 12, gas top unit, 13, telescopic drive part, 14, demoulding push plate, 15, push plate base, 16, demoulding sleeve ring, 17, lower fixed plate, 18, lower die base, 19, positioning pin, 20, first positioning hole, 21, second positioning hole, 22, upper fixed plate, 23, first upper die unit, 24, second upper die unit. PREFERRED EMBODIMENT

[0021] The technical scheme in the utility model embodiment will be further explained in detail in connection with the utility model embodiment, and obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor are all related to the scope of the utility model protection.

[0022] As Figs. 1-3As shown, the embodiment proposes a new energy hydrogen storage tank liner injection molding mold, the injection molding mold includes lower mold assembly 1, upper mold assembly 2, the upper mold assembly 2 has a cylindrical groove 3, the lower mold assembly 1 has a forming column 4, the forming column 4 is used to be arranged in the cylindrical groove 3 to form a forming space, the upper mold assembly 2 is provided with an injection port 5, the injection port 5 is communicated with the forming space, the upper mold assembly 2 is provided with an outer cooling channel 6, the forming column 4 is provided with an inner cooling channel 7, wherein the inner cooling channel 7 includes a plurality of cooling branches arranged in sequence in the direction away from the injection port 5.

[0023] In the embodiment, a new energy hydrogen storage tank liner injection molding mold is disclosed, a cylindrical groove 3 is arranged on the upper mold assembly 2, a forming column 4 is arranged on the lower mold assembly 1, after the upper mold assembly 2 and the lower mold assembly 1 are closed, the forming column 4 extends into the cylindrical groove 3, there is a gap between the inner wall of the cylindrical groove 3 and the forming column 4, forming a forming space, the injection port 5 of the upper mold assembly 2 injects a forming material into the injection space, in order to be able to quickly form and easily demould without occupying, the inner cooling channel 7 on the forming column 4 is arranged to cool, at the same time, the outer cooling channel on the upper mold assembly 2 is arranged to cool, forming double-sided cooling, further, in order to adapt to the inside heat dissipation, the inner cooling channel on the forming column 4 is arranged in sequence in a plurality of cooling branches in the direction away from the injection port 5, different temperature cooling liquids can be introduced to form different temperature cooling areas, so that the liner can be cooled and formed synchronously, avoiding adhesion, and the forming quality of the liner is also improved.

[0024] The forming column 4 includes a forming core sleeve 8, a core top cover 9 and a cooling core body 10, the cooling core body 10 is arranged on the inside of the forming core sleeve 8, a plurality of cooling branches are arranged in sequence on the cooling core body 10 in the direction away from the injection port 5, the core top cover 9 is arranged on the top of the forming core sleeve 8, and the core top cover 9 is semispherical.

[0025] On the basis of the above embodiment, the cooling core body 10 is inserted into the forming core sleeve 8, and the core top cover 9 is covered on the top of the forming core sleeve 8, the cooling core body 10 is enclosed inside, the forming space is formed by the forming core sleeve 8 and the core top cover 9 and the cylindrical groove 3, the core top cover 9 is semispherical, so that the injection of the forming material by the injection port 5 is more uniform, a plurality of cooling branches are arranged on the cooling core body 10, which can gradually cool according to the setting degree of the forming material, and the temperature gradually decreases in the direction away from the injection port 5, so that the forming material can be stably formed.

[0026] The core top cover 9 is provided with an inner groove 11 at the center, and the forming column 4 further comprises a plurality of air jacking units 12 which are arranged at the top of the core top cover 9 and distributed at equal intervals in the circumference, the core top cover 9 is connected with the air jacking units 12, and the core top cover 9 can move along the axial direction of the forming core sleeve 8.

[0027] In this embodiment, the inner groove 11 is arranged at the upper end of the center of the core top cover 9, so that when the hydrogen storage tank liner is injection molded, the bottom of the liner will also form a thicker molding structure in the part of the inner groove 11, and the air jacking units 12 are arranged at the upper end of the core top cover 9, which can be elongated by pneumatic to push the liner off the forming column 4 to achieve demolding, the air jacking units 12 can be arranged in multiple and distributed at equal intervals in the circumference, so that a more stable and uniform pushing force can be applied to the bottom of the liner, and at the same time, the increased thickness of the bottom of the liner also improves the reliability of demolding and avoids damage to the liner.

[0028] The lower mold assembly 1 further comprises a demolding unit, the demolding unit comprises a telescopic driving member 13 and a demolding push plate 14, the demolding push plate 14 is sleeved on the forming column 4, the upper mold assembly 2 abuts against the demolding push plate 14, and the telescopic driving member 13 is connected with the demolding push plate 14 to drive the demolding push plate 14 to move.

[0029] In this embodiment, in order to further improve the efficiency, stability and quality of demolding, the lower mold assembly 1 further comprises a telescopic driving member 13 and a demolding template, the above components constitute a demolding unit, the telescopic driving member 13 can drive the demolding push plate 14 to move up and down, the demolding push plate 14 is sleeved on the forming column 4, so that after the upper mold assembly 2 and the lower mold assembly 1 are combined, the bottom of the upper mold assembly 2 abuts against the demolding push plate 14, after injection molding, the upper mold assembly 2 is opened, the liner is demolded under the pushing of the air jacking units 12, at the same time, the demolding push plate 14 located at the bottom end face of the liner will also push the liner upwards under the driving of the telescopic driving member 13 to achieve demolding. It should be noted that the telescopic driving member 13 can be a telescopic oil cylinder, and the installation mode and direction can be adjusted according to actual needs, and a plurality of telescopic driving members 13 can be arranged to enable the demolding push plate 14 to stably ascend and descend.

[0030] The demolding push plate 14 comprises a push plate base 15 and a demolding sleeve ring 16, the demolding sleeve ring 16 is detachably arranged on the push plate base 15, the telescopic driving member 13 is connected with the push plate base 15, and the forming column 4 penetrates through the demolding sleeve ring 16.

[0031] In the embodiment, the demolding push plate 14 passes through the push plate base 15 and the demolding sleeve ring 16, the demolding sleeve ring 16 is detachably installed on the push plate base 15, the demolding sleeve ring 16 can be detached and replaced, the telescopic driving member 13 is connected with the push plate base 15 to drive the up-down movement, the forming column passes through the demolding sleeve ring 16 to realize the position cooperation.

[0032] The lower mold assembly 1 further comprises a lower fixed plate 17 and a lower mold base 18, the lower mold base 18 is arranged on the lower fixed plate 17, one end of the telescopic driving member 13 is fixedly arranged on the lower fixed plate 17 or the lower mold base 18, and the telescopic end of the telescopic driving member 13 is connected with the push plate base 15.

[0033] In the embodiment, the lower mold assembly 1 is that the lower mold base 18 is installed on the lower fixed plate 17, wherein one end of the telescopic driving member 13 is fixed, which can be fixed on the lower fixed plate 17 or can be fixed on the lower mold base 18, and the other end of the telescopic driving member 13 is connected with the push plate base 15.

[0034] The lower mold assembly 1 further comprises a positioning pin 19, the sidewall of the forming core sleeve 8 is provided with a first positioning hole 20, the lower mold base 18 is provided with a second positioning hole 21, and the positioning pin 19 passes through the second positioning hole 21 and is inserted into the first positioning hole 20.

[0035] In the embodiment, the forming core sleeve 8 is installed on the lower mold base 18, wherein the second positioning hole 21 is arranged on the lower mold base 18, the first positioning hole 20 is arranged on the forming core sleeve 8, the forming core sleeve 8 is fixed by inserting the positioning pin 19 into the second positioning hole 21 and then into the first positioning hole 20, and the position stability of the forming core sleeve 8 is improved.

[0036] The upper mold assembly 2 comprises an upper fixed plate 22, a first upper mold unit 23 and a second upper mold unit 24, the first upper mold unit 23 and the second upper mold unit 24 are sequentially arranged on the upper fixed plate 22 in a direction away from the upper fixed plate 22, the first upper mold unit 23 and the second upper mold unit 24 are both provided with a sub-groove, two sub-grooves are connected in series to form the cylindrical groove 3, the first upper mold unit 23 and the second upper mold unit 24 are both provided with an outer cooling channel 6, and the injection port 5 is arranged on the upper fixed plate 22 and communicates with the sub-groove of the first upper mold unit 23.

[0037] In the embodiment, the upper die assembly 2 is an upper fixed plate 22, a first upper die unit 23 and a second upper die unit 24, the first upper die unit 23 and the second upper die unit 24 are sequentially installed on the bottom surface of the upper fixed plate 22, the first upper die unit 23 and the second upper die unit 24 are both provided with a sub-groove, and the two upper die units form a through groove after being combined, the injection port 5 is installed on the upper fixed plate 22, the injection port 5 is communicated with the sub-groove of the first upper die unit 23, so that the forming material is supplied.

[0038] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A molding die for the inner liner of a new energy hydrogen storage tank, characterized in that, The injection molding mold includes a lower mold assembly (1) and an upper mold assembly (2). The upper mold assembly (2) has a cylindrical groove (3). The lower mold assembly (1) has a forming column (4). The forming column (4) is set in the cylindrical groove (3) to form a forming space. The upper mold assembly (2) is provided with an injection port (5). The injection port (5) is connected to the forming space. The upper mold assembly (2) is provided with an external cooling passage (6). The forming column (4) is provided with an internal cooling passage (7). The internal cooling passage (7) includes a number of cooling branches arranged sequentially in a direction away from the injection port (5).

2. The injection molding mold for the inner liner of a new energy hydrogen storage tank according to claim 1, characterized in that, The molding column (4) includes a molding core sleeve (8), a core top cover (9) and a cooling core (10). The cooling core (10) is located inside the molding core sleeve (8). Several cooling branches are arranged sequentially on the cooling core (10) in a direction away from the injection port (5). The core top cover (9) is located on the top of the molding core sleeve (8) and is hemispherical.

3. The injection molding mold for the inner liner of a new energy hydrogen storage tank according to claim 2, characterized in that, The lower mold assembly (1) further includes a demolding unit, which includes a telescopic drive (13) and a demolding push plate (14). The demolding push plate (14) is sleeved on the forming column (4), and the upper mold assembly (2) abuts against the demolding push plate (14). The telescopic drive (13) is connected to the demolding push plate (14) to drive the demolding push plate (14) to move.

4. The injection molding mold for the inner liner of a new energy hydrogen storage tank according to claim 3, characterized in that, The demolding push plate (14) includes a push plate base (15) and a demolding collar (16). The demolding collar (16) is detachably mounted on the push plate base (15). The telescopic drive member (13) is connected to the push plate base (15). The forming column passes through the demolding collar (16).

5. The injection molding mold for the inner liner of a new energy hydrogen storage tank according to claim 4, characterized in that, The lower mold assembly (1) further includes a lower fixing plate (17) and a lower mold base (18). The lower mold base (18) is disposed on the lower fixing plate (17). One end of the telescopic drive member (13) is fixedly disposed on the lower fixing plate (17) or the lower mold base (18). The telescopic end of the telescopic drive member (13) is connected to the push plate base (15).

6. The injection molding mold for the inner liner of a new energy hydrogen storage tank according to claim 5, characterized in that, The lower mold assembly (1) also includes a positioning pin (19), the side wall of the molding core sleeve (8) is provided with a first positioning hole (20), the lower mold base (18) is provided with a second positioning hole (21), and the positioning pin (19) passes through the second positioning hole (21) and is inserted into the first positioning hole (20).

7. The injection molding mold for the inner liner of a new energy hydrogen storage tank according to claim 1, characterized in that, The upper mold assembly (2) includes an upper fixing plate (22), a first upper mold unit (23) and a second upper mold unit (24). The first upper mold unit (23) and the second upper mold unit (24) are sequentially arranged on the upper fixing plate (22) in a direction away from the upper fixing plate (22). The first upper mold unit (23) and the second upper mold unit (24) are each provided with a sub-groove. The two sub-grooves are connected in series to form the cylindrical groove (3). The first upper mold unit (23) and the second upper mold unit (24) are each provided with an external cooling passage (6). The injection port (5) is arranged on the upper fixing plate (22) and communicates with the sub-groove of the first upper mold unit (23).

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