CN111673971B - Soft oil tank bag opening forming process and structure - Google Patents
Soft oil tank bag opening forming process and structure Download PDFInfo
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- CN111673971B CN111673971B CN202010535968.XA CN202010535968A CN111673971B CN 111673971 B CN111673971 B CN 111673971B CN 202010535968 A CN202010535968 A CN 202010535968A CN 111673971 B CN111673971 B CN 111673971B
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- flange plate
- plate body
- rubber layer
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- layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C2043/3602—Moulds for making articles of definite length, i.e. discrete articles with means for positioning, fastening or clamping the material to be formed or preforms inside the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7172—Fuel tanks, jerry cans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a forming process and a structure of a soft oil tank bag opening, which belong to the technical field of liquid containers and comprise the following steps: the flange plate comprises a flange plate body, wherein a plurality of layers of annular bosses are arranged on the periphery of the middle part of the flange plate body; the inner periphery of the pure rubber layer A is provided with a plurality of layers of annular grooves which are embedded and hermetically connected with the plurality of layers of annular bosses of the flange plate body; the rubber cloth layer and the pure rubber layer B are respectively connected with the two sides of the rubber cloth layer in a sealing way. The tensile strength among the flange plate body, the pure rubber layer A, the rubber cloth layer and the pure rubber layer B reaches 4KN, the air tightness qualification rate can reach more than ninety-five percent, the problems that the product quality is uneven and the connection strength cannot be guaranteed due to the technical experience of workers are solved, the qualification rate is improved, the production efficiency is improved due to the fact that the mold is used for producing, the overall qualification rate of the soft oil tank product produced by the production method is high, the labor production intensity is improved, and the appearance of the product is improved.
Description
Technical Field
The invention relates to a process and a structure for forming a bag opening of a soft oil tank, belonging to the technical field of liquid containers.
Background
On some high-speed movement equipment, in order to reduce the wind resistance during movement, a soft oil tank bag is often used as an oil storage container, because the oil quantity is slowly consumed during movement, the volume of the soft oil tank bag is slowly reduced along with the consumption of the oil quantity, and the purpose of reducing the wind resistance is achieved; the soft oil tank bag mouth is composed of a flange and a soft bag body, the flange is bonded with the soft bag body by an adhesive layer manually at present, the production efficiency is low, the air tightness qualification rate of the joint of the flange and the soft bag body is low, in addition, the quality of the connection of the flange and the soft bag body is often determined by the technical experience level of workers, the produced products have uneven quality, the connection strength of the joint is difficult to ensure, and once the connection strength is not ensured, the oil leakage occurrence result is fatal as the soft oil tank bag is used on high-speed moving equipment.
Disclosure of Invention
In order to solve the technical problem, the invention provides a process and a structure for forming a soft oil tank bag opening.
The invention is realized by the following technical scheme.
The invention provides a forming process of a soft oil tank bag opening, which comprises the following steps:
the method comprises the following steps: heating the upper die and the auxiliary die A to 150 +/-15 ℃; secondly, the flange plate body is arranged in an upper die; then, raw rubber is arranged on the periphery of the flange plate body and is positioned in a cavity of the upper die; finally, the auxiliary die A is sleeved and pre-pressed for forming to form a pure rubber layer A which is tightly connected with the two sides of the flange plate body;
step two: heating the secondary die B to 150 +/-15 ℃; putting the six-to-three-to-five raw rubber into a cavity of the mold, and prepressing the auxiliary mold B and the mold to form the pure rubber layer B;
step three: the flange plate body is installed in an upper die, the pure rubber layer A is installed in the periphery of the flange plate body and located in the cavity of the upper die, the pure rubber layer A is sequentially provided with the rubber cloth layer and the pure rubber layer B, the core die is installed in the hollow interior of the flange plate body and props against the sleeve die, the pure rubber layer B is tightly pressed by the die in a sleeved mode, the flange plate body, the pure rubber layer A, the rubber cloth layer and the pure rubber layer B are heated to 150 +/-15 ℃, and the flange plate body, the pure rubber layer A, the rubber cloth layer and the pure rubber layer B are taken out for cooling, so that contact surfaces of the flange plate body, the pure rubber layer A, the rubber cloth layer and the pure rubber layer B are tightly bonded.
And (4) carrying out constant-temperature vulcanization for more than two hours when heating in the first step.
And in the second step, the vulcanization is carried out for more than two hours at constant temperature when the material is heated.
And a cover die is arranged at the bottom of the upper die in the first step.
The first step and the second step are operated simultaneously.
And the clearance between the middle rubberized fabric layer and the upper die or the die in the third step is from seven tenths of millimeters to eight tenths of millimeters.
The invention relates to a bag mouth structure of a soft oil tank, which comprises: the flange plate comprises a flange plate body, wherein a plurality of layers of annular bosses are arranged on the periphery of the middle part of the flange plate body;
the inner periphery of the pure rubber layer A is provided with a plurality of layers of annular grooves which are embedded and hermetically connected with the plurality of layers of annular bosses of the flange plate body;
the rubber cloth layer and the pure rubber layer B are respectively connected with the two sides of the rubber cloth layer in a sealing way.
The flange plate body is internally provided with a through hole, and the top surface extension table is provided with a plurality of through holes for connection and matching.
The inner surfaces of the rubberized fabric layer and the pure rubber layer B are tightly connected with the flange plate body.
The rubberized fabric layer structure is that aramid fiber is in the middle, and the upper and lower is the intermediate layer that six one three five sizing materials constitute, and aramid fiber guarantees tensile strength, and six one three five sizing materials guarantee the leakproofness of being connected with pure rubber layer A, pure rubber layer B.
The invention has the beneficial effects that: the tensile strength among the flange plate body, the pure rubber layer A, the rubber cloth layer and the pure rubber layer B reaches 4KN, the air tightness qualification rate can reach more than ninety-five percent, the problems that the product quality is uneven and the connection strength cannot be guaranteed due to the technical experience of workers are solved, the qualification rate is improved, the production efficiency is improved due to the fact that the mold is used for producing, the overall qualification rate of the soft oil tank product produced by the production method is high, the labor production intensity is improved, and the appearance of the product is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure of the flange body, the upper mold, the cover mold and the auxiliary mold A;
FIG. 3 is a schematic sectional view of the installation of the secondary mold B and the mold of the present invention;
FIG. 4 is a schematic view showing the sectional structure of the flange body, the upper mold, the cover mold, the mold, and the core mold according to the present invention;
in the figure: 1-a flange plate body; 2-a pure rubber layer a; 3-a rubberized fabric layer; 4-pure rubber layer B; 5, mounting a mold; 6-die casting; 7-secondary mould A; 8-secondary mold B; 9-a mould; 10-core mold.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-4.
The invention discloses a forming process of a soft oil tank bag opening, which comprises the following steps:
the method comprises the following steps: firstly, heating an upper die 5 and an auxiliary die A7 to 150 +/-15 ℃ by using a flat vulcanizing machine, and keeping the temperature for more than two hours; secondly, the flange plate body 1 made of metal is installed from a through hole at the bottom of the upper die 5 in a penetrating way; then, six-one-three-five raw rubber is arranged on the periphery of the flange plate body 1 and is positioned in a cavity of the upper die 5; finally, the secondary die A7 is sleeved and pre-pressed for forming, redundant anticipation is removed, and a pure rubber layer A2 is formed to be tightly connected with the two sides of the flange body 1, as shown in figure 2;
step two: heating the secondary die B8 and the die 9 to 150 +/-15 ℃ by using a flat vulcanizing machine, and keeping the temperature for more than two hours; placing the six-one-three-five raw rubber into a cavity of a die 9, and prepressing a secondary die B8 and the die 9 to form a pure rubber layer B4, as shown in figure 3;
step three: the flange plate body 1 is installed on an upper die 5, a pure rubber layer A2 is installed on the periphery of the flange plate body 1 and located in a cavity of the upper die 5, a rubberized fabric layer 3 is installed on the pure rubber layer A2, a pure rubber layer B4 is installed on the rubberized fabric layer 3, a sleeve die 6 is installed at the bottom of the upper die 5, a core die 10 is installed in the hollow interior of the flange plate body 1, the core die 10 abuts against the sleeve die 6, a die 9 is sleeved from the top and tightly presses the pure rubber layer B4, the flange plate body is placed into a flat vulcanizing machine, the temperature is raised to 150 +/-15 ℃, the temperature is kept constant for vulcanization for more than two hours, and the flange plate body 1, the pure rubber layer A2, the rubberized fabric layer 3 and the pure rubber layer B4 are taken out of the die and cooled, so that contact surfaces of the flange plate body 1, the pure rubber layer A2, the rubberized fabric layer 3 and the pure rubber layer B4 are tightly bonded.
According to the product obtained by the process, the air tightness qualification rate can reach more than ninety-five percent, the tensile strength among the flange plate body 1, the pure rubber layer A2, the rubberized fabric layer 3 and the pure rubber layer B4 reaches 4KN, the problems that the product quality is uneven and the connection strength cannot be guaranteed due to the technical experience of workers are solved, the qualification rate is improved, the production efficiency is improved due to the fact that the production is carried out by utilizing a die, the integral qualification rate of the soft oil tank product produced by utilizing the production method is high, the labor production intensity is improved, and the appearance of the product is improved.
And the first step is vulcanized when heated, so that the rubber property of the pure rubber layer A2 is enhanced.
In the step one, the sleeve die 6 is arranged at the bottom of the upper die 5, the sleeve die 6 is in contact with the flat vulcanizing machine, the flatness of the sleeve die 6 is ensured, the situation that the upper die 5 is in contact with the flat vulcanizing machine and the bottom surface of the upper die 5 with a large area needs to be subjected to finish machining is avoided, and cost is reduced.
And step two, vulcanization is carried out when heating is carried out, so that the rubber performance of the pure rubber layer B4 is enhanced.
The first step and the second step are operated simultaneously, so that the production efficiency is improved.
The clearance between the rubberized fabric layer 3 and the upper mold 5 or the mold 9 in the third step is seven to eight millimeters from zero, the clearance is large and can bring redundant rubber to flow into the flange body 1, and the clearance is small and can cause the flange body 1 to suffer from external force action due to thermal deformation of the mold, so that the dimensional accuracy cannot meet the use requirement.
Referring to fig. 1, the invention provides a bag mouth structure of a soft oil tank, comprising: the flange plate comprises a flange plate body 1, wherein multiple layers of annular bosses are arranged on the periphery of the middle part of the flange plate body 1;
the inner circumference of the pure rubber layer A2 and the inner circumference of the pure rubber layer A2 are provided with a plurality of layers of annular grooves which are embedded and hermetically connected with the plurality of layers of annular bosses of the flange plate body 1;
the upper surface and the lower surface of the rubber cloth layer 3 are respectively connected with the pure rubber layer A2 and the pure rubber layer B4 in a sealing way.
The inside circular through-hole that is of ring flange body 1, the epitaxial platform of top surface is equipped with a plurality of circular through-holes of bolted connection complex.
The inner surfaces of the rubber cloth layer 3 and the pure rubber layer B4 are tightly connected with the flange plate body 1, so that the phenomenon that the oil liquid which fluctuates due to the existence of gaps enters and is damaged is avoided.
The structure of the rubberized fabric layer 3 is that the aramid fiber is in the middle, and the upper and lower interlayers formed by six-one-three-five rubber materials ensure the tensile strength, and the six-one-three-five rubber materials ensure the sealing property of the connection with the pure rubber layer A2 and the pure rubber layer B4.
Claims (9)
1. A process for forming a soft oil tank bag opening is characterized by comprising the following steps:
the method comprises the following steps: heating the upper die (5) and the auxiliary die A (7) to 150 +/-15 ℃; secondly, the flange plate body (1) is arranged in an upper die (5); then, raw rubber is arranged on the periphery of the flange plate body (1) and is positioned in a cavity of the upper die (5); finally, the auxiliary die A (7) is sleeved and pre-pressed for forming to form a pure rubber layer A (2) which is tightly connected with the two sides of the flange plate body (1);
step two: heating the secondary die B (8) and the die (9) to 150 +/-15 ℃; placing the rubber into a cavity of a mold (9), and prepressing an auxiliary mold B (8) and the mold (9) to form a pure rubber layer B (4);
step three: the flange plate body (1) is installed in an upper die (5), a pure rubber layer A (2) is installed in a cavity of the upper die (5) in the periphery of the flange plate body (1), a rubber cloth layer (3) and a pure rubber layer B (4) are sequentially installed on the pure rubber layer A (2), a gap between the rubber cloth layer (3) and the upper die (5) or the die (9) is seven to eight millimeters from zero, a core die (10) is installed in the hollow interior of the flange plate body (1) and props against a sleeve die (6), the die (9) is sleeved and tightly pressed on the pure rubber layer B (4), the flange plate body is heated to 150 +/-15 ℃, and the flange plate body is taken out for cooling.
2. The process for forming the mouth of the soft oil tank bag according to claim 1, wherein: and in the first step, the vulcanization is carried out for more than two hours at constant temperature when the material is heated.
3. The process for forming the mouth of the soft oil tank bag according to claim 1, wherein: and in the second step, the vulcanization is carried out for more than two hours at constant temperature when the material is heated.
4. The process for forming the mouth of the soft oil tank bag according to claim 1, wherein: and a cover die (6) is arranged at the bottom of the upper die (5) in the step I.
5. The forming process of the soft oil tank bag mouth as claimed in claim 1, wherein: the first step and the second step are operated simultaneously.
6. A soft fuel tank bag mouth structure formed by the soft fuel tank bag mouth forming process according to any one of claims 1 to 5, which is characterized by comprising the following steps: the flange plate comprises a flange plate body (1), wherein multiple layers of annular bosses are arranged on the periphery of the middle part of the flange plate body (1);
the inner periphery of the pure rubber layer A (2) is provided with a plurality of annular grooves which are embedded and hermetically connected with a plurality of annular bosses of the flange plate body (1);
the rubber cloth layer (3) and the pure rubber layer B (4), wherein the two surfaces of the rubber cloth layer (3) are respectively connected with the pure rubber layer A (2) and the pure rubber layer B (4) in a sealing way.
7. The pouch opening structure of a flexible fuel tank as set forth in claim 6, wherein: the flange plate body (1) is internally provided with a through hole, and the top surface extension table is provided with a plurality of through holes for connection and matching.
8. The pouch opening structure of a flexible fuel tank as set forth in claim 6, wherein: the inner surfaces of the rubberized fabric layer (3) and the pure rubber layer B (4) are tightly connected with the flange plate body (1).
9. The pouch opening structure of a flexible fuel tank as defined in claim 6 or 8, wherein: the structure of the rubberized fabric layer (3) is an interlayer formed by aramid fibers in the middle and six-one-three-five rubber materials at the upper part and the lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010535968.XA CN111673971B (en) | 2020-06-12 | 2020-06-12 | Soft oil tank bag opening forming process and structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010535968.XA CN111673971B (en) | 2020-06-12 | 2020-06-12 | Soft oil tank bag opening forming process and structure |
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| CN111673971A CN111673971A (en) | 2020-09-18 |
| CN111673971B true CN111673971B (en) | 2022-07-12 |
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| CN202010535968.XA Active CN111673971B (en) | 2020-06-12 | 2020-06-12 | Soft oil tank bag opening forming process and structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112497577B (en) * | 2020-12-18 | 2022-11-25 | 江苏常友环保科技股份有限公司 | Engine room cover inner and outer flange integrated forming combined die |
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