CN110405990B - Hollow mold with fabric sealing piece and continuous forming method thereof - Google Patents
Hollow mold with fabric sealing piece and continuous forming method thereof Download PDFInfo
- Publication number
- CN110405990B CN110405990B CN201910833930.8A CN201910833930A CN110405990B CN 110405990 B CN110405990 B CN 110405990B CN 201910833930 A CN201910833930 A CN 201910833930A CN 110405990 B CN110405990 B CN 110405990B
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- mold
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- product cavity
- fabric
- product
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- 239000004744 fabric Substances 0.000 title claims abstract description 93
- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 229920001971 elastomer Polymers 0.000 abstract description 18
- 238000010057 rubber processing Methods 0.000 abstract description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- 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
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a hollow mold with a fabric sealing piece, which belongs to the technical field of rubber processing and comprises a lower mold, an upper mold and a middle mold, wherein one sides of the upper mold and the lower mold are provided with cloth retaining grooves, the upper mold is provided with an upper mold product cavity, the middle mold is provided with a middle mold product cavity, the lower mold is provided with a lower mold product cavity, and the upper mold product cavity, the lower mold product cavity and the middle mold product cavity form a cavity of the rubber sealing piece; the invention also discloses a continuous molding method of the hollow section strip fabric sealing piece, a method of lengthening and enlarging a die and a splicing molding method are not needed to process the long product or the special-shaped profile sealing piece, and the continuous processing of the hollow section strip fabric sealing piece is realized.
Description
Technical Field
The invention relates to the technical field of rubber processing, in particular to a mold for a hollow sealing piece with fabric and a continuous forming method thereof.
Background
The hollow broken surface is provided with the fabric sealing element, so that small stress and large deformation can be realized, wherein rubber is used as a main body material, has good rebound resilience, and provides contact stress for the rubber sealing element to realize sealing; the fiber fabric is used as a framework material to limit the deformation of the product, improve the strength of the product, improve the wear resistance of the product and the like.
The hollow section belt fabric sealing member generally needs to be coated with fabric on the surface of the sealing member, and has smooth and flat appearance and uniform hollow wall thickness. In the forming process of the hollow structure, in order to ensure the uniformity of the wall thickness of the hollow, the two ends of the hollow part mold core are required to be positioned. At present, for the molding of the hollow section belt fabric sealing piece, the following problems mainly exist, such as:
(1) By adopting a method of long or large mould, for long sealing elements, the mould input cost is high, the size requirement of vulcanizing equipment is high, and the long mould core is not positioned well, for example: a 3m long seal, requiring a 3m long mold and curing equipment to form;
(2) The splice molding method, in which a plurality of small-segment seals are vulcanized first, and then the small-segment seals are spliced together, has the disadvantages of a large number of joints, uneven joint portions or poor strength, for example: and the door frame sealing piece is formed by splicing the four straight sections and the four elbows for 8 times.
Accordingly, there is a need to provide a mold for a hollow strip fabric seal and a continuous molding method thereof, which aims to solve the above problems.
Disclosure of Invention
Aiming at the defects existing in the prior art, the embodiment of the invention aims to provide a mold for a hollow strip fabric sealing piece and a continuous forming method thereof, and the two problems are solved by the continuous forming method of the hollow section strip fabric sealing piece, wherein the main body structure of the mold can be curved or straight, and the mold is processed and formed according to the appearance structure of a product. The straight sealing piece can be formed infinitely continuously in length; curved structural products, such as door frame seals, can be converted from straight continuous vulcanization to curved continuous vulcanization until the desired contoured structural seal is completed.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a mould of cavity area fabric sealing member, includes lower mould, goes up mould and well mould, be equipped with the lower mould outside the lower mould product die cavity of lower mould and stay the cloth groove, the lower mould is stayed the cloth groove the degree of depth more than the degree of depth of lower mould product die cavity, the lower mould is stayed the cloth groove and is used for placing the used reserved fabric when product continuous molding, the product needs many times machine-shaping.
As a further aspect of the present invention, the lower die retaining groove is provided at an end portion of the lower die.
As a further scheme of the invention, the end part of the upper die is provided with an upper die cloth-reserving groove, the depth of the upper die cloth-reserving groove is larger than that of an upper die product cavity of the upper die, the upper die cloth-reserving groove is used for enabling a gap to be reserved between the end part of the upper die and the reserved fabric when the upper die is fixed, and the upper die cloth-reserving groove and the lower die cloth-reserving groove are positioned at the same end of the die.
As a further scheme of the invention, the middle die is provided with a middle die product cavity, and the upper die product cavity, the middle die product cavity and the lower die product cavity are flush.
As a further scheme of the invention, the lower die cloth-retaining groove is a step-shaped space at the end part of the lower die.
As a further scheme of the invention, the upper die cloth-retaining groove is a step-shaped space at the end part of the upper die.
As a further scheme of the invention, the upper die product cavity, the lower die product cavity and the middle die product cavity form a product cavity, a die core is arranged in the product cavity, lower plugs are arranged at two ends of the lower die, upper plugs are arranged at two ends of the upper die, and the die core is fixed through the lower plugs and the upper plugs.
The method comprises the steps that a mold of the hollow fabric sealing piece is adopted, the mold comprises a lower mold, an upper mold and a middle mold, the lower mold is provided with a lower mold product cavity, the upper mold is provided with an upper mold product cavity, the middle mold is provided with a middle mold product cavity, the upper mold product cavity, the lower mold product cavity and the middle mold product cavity form a product cavity, a mold core is arranged in the product cavity, lower plugs are arranged at two ends of the lower mold, upper plugs are arranged at two ends of the upper mold, the mold core can be fixed through the lower plugs and the upper plugs, a lower mold cloth retaining groove is formed outside the lower mold product cavity, and the depth of the lower mold cloth retaining groove is larger than that of the lower mold product cavity, and the method comprises the following steps:
Step 1) spreading the fabric subjected to tackifying treatment in a lower die product cavity with lower plugs at two sides, pulling out reserved fabric for continuous forming through a lower die cloth retaining groove, wherein the reserved fabric meets the size requirement of the fabric for continuous forming of the whole product, then placing a die core for wrapping a semi-finished film on the fabric, matching the two ends of the die core with the lower plugs at two sides of the lower die, closing a middle die, pasting a layer of film in the product cavity, flattening the fabric, closing an upper die with upper plugs at two sides, placing the die on a hot plate, stretching the die at one side of the reserved fabric out of the hot plate surface for one section, vulcanizing under pressure, opening the die after forming is completed, taking out the product, and forming the part of the product to form a part of the whole product;
step 2), continuously forming reserved fabric is flatly laid in a lower die product cavity with a lower plug at one side of the reserved fabric, a die core wraps a rubber sheet, the die core at one side of the reserved fabric is matched with the lower plug at the side of the lower die, the die core at the other side of the reserved fabric is inserted into a small section in a formed product cavity, the formed product is used for fixing the die core at the side, continuously forming the reserved fabric is pulled out through a lower die cloth retaining groove, a middle die is closed, a layer of rubber sheet is stuck in the product cavity, the fabric is leveled, an upper die with an upper plug at one side of the reserved fabric is closed, the die is placed on a hot plate, the die at one side of the reserved fabric extends out of the hot plate for one section, press vulcanization is carried out, and after forming is completed, the die is opened, and the product is taken out;
step 3) continuously vulcanizing according to the step 2), and continuously producing until the required size is obtained;
and 4) removing excessive burrs of the product to finish the production of the product.
As a further aspect of the present invention, before step 1), the method further comprises a fabric tackifying treatment:
soaking the fabric in 10-20% of tackifying liquid, and airing the fabric for standby after 30 min-4 h;
The mucus-increasing liquid comprises a VTPS ethyl acetate solution, an AI51 ethanol solution and an ST608 ethanol solution.
As a further scheme of the invention, the fabric comprises wear-resistant polyester fabric, polyester mesh fabric, glass fabric and the like.
In summary, compared with the prior art, the embodiment of the invention has the following beneficial effects:
According to the hollow mold with the fabric sealing piece, the lower mold cloth-retaining groove is formed outside the lower mold product cavity of the lower mold, the lower mold cloth-retaining groove is used for placing reserved fabric used in continuous molding of products in product molding, continuous molding of the sealing piece can be realized by adopting the structure, and therefore, the processing of the long and straight sealing piece can be realized without lengthening and enlarging the mold, and the mold core is positioned well; the spliced part is smooth and has good strength, and the forming of the special-shaped sealing piece is realized.
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a top view of a rubber seal mold according to the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a view in the direction A of FIG. 1;
FIG. 4 is a B-B cross-sectional view of FIG. 1;
FIG. 5 is a cross-sectional view taken along the direction C-C of FIG. 1;
FIG. 6 is a schematic diagram of the structure of the lower die in the rubber seal mold provided by the invention;
FIG. 7 is a D-D sectional view of FIG. 6;
FIG. 8 is an E-E cross-sectional view of FIG. 6;
Fig. 9 is a schematic structural view of a lower plug in a rubber seal mold provided by the invention;
FIG. 10 is a cross-sectional view taken along the F-F direction of FIG. 9;
FIG. 11 is a schematic view of the structure of a mold core in a rubber seal mold provided by the invention;
FIG. 12 is a G-G cross-sectional view of FIG. 11;
FIG. 13 is a schematic view of the structure of a middle mold in a rubber seal mold provided by the invention;
FIG. 14 is a cross-sectional view in the H-H direction of FIG. 13;
FIG. 15 is a schematic view of the upper die in the rubber seal mold according to the present invention;
FIG. 16 is a cross-sectional view in the I-I direction of FIG. 15;
FIG. 17 is a J-J cross-sectional view of FIG. 15;
FIG. 18 is a schematic diagram of the structure of the upper plug in the rubber seal mold provided by the invention;
fig. 19 is a K-K cross-sectional view of fig. 18.
FIG. 20 is a schematic side view of a continuous curing mold according to an embodiment.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and specific embodiments.
The silicone rubber hollow strip fabric sealing element is usually formed by compounding and vulcanizing silicone rubber and fabric materials, and the compound fabric can improve the wear resistance, tear resistance, rigidity, durability and the like of the sealing element. The hollow structure can generate large deformation under small stress, so that shearing damage caused by too large interference of the rubber profile or sealing failure caused by too small interference can be effectively avoided, and meanwhile, the requirement on the machining precision of a mechanical installation part can be properly relaxed. The silicone rubber hollow band fabric seal may be used in aviation rubber seals such as: long straight bar seals, door frame seals, etc.
Referring to fig. 1 to 20, a mold for a hollow fabric sealing member comprises a lower mold 1, an upper mold 18 and a middle mold 14, wherein a lower mold cloth-retaining groove 8 is arranged outside a lower mold product cavity 5 of the lower mold 1, the depth of the lower mold cloth-retaining groove 8 is larger than that of the lower mold product cavity 5, the lower mold cloth-retaining groove 8 is used for placing reserved fabric used during continuous molding of products, the lower mold cloth-retaining groove 8 is arranged at the end part of the lower mold 1, and the end part of the lower mold cloth-retaining groove 8 is a step-shaped space.
The end of the upper die 18 is provided with an upper die cloth-reserving groove 23, the depth of the upper die cloth-reserving groove 23 is larger than that of an upper die product cavity 19 of the upper die 18, the upper die cloth-reserving groove 23 is used for enabling a gap to be reserved between the end of the upper die 18 and reserved fabrics when the upper die 18 is fixed, the upper die cloth-reserving groove 23 and the lower die cloth-reserving groove 8 are located at the same end of the die, and the end of the upper die 18 is a step-shaped space through the upper die cloth-reserving groove 23.
The middle die 14 is provided with a middle die product cavity 15, and the upper die product cavity 19, the middle die product cavity 15 and the lower die product cavity 5 are flush.
The upper die product cavity 19, the lower die product cavity 5 and the middle die product cavity 15 form a product cavity, a die core 13 is arranged in the product cavity, lower plugs 9 are arranged at two ends of the lower die 1, upper plugs 24 are arranged at two ends of the upper die 18, and the die core is fixed through the lower plugs 9 and the upper plugs 24.
The lower die 1 is also provided with a first lower die positioning pin 2, a second lower die positioning pin 3, a third lower die positioning pin 6, a first lower die screw hole 4 and a second lower die screw hole 7; the lower plug 9 is provided with a lower plug bolt 10, a lower plug positioning hole 11 and a lower plug mold core cavity 12, the third lower mold positioning pin 6 is inserted into the lower plug positioning hole 11, and the lower plug bolt 10 is inserted into the second lower mold screw hole 7 to fix the lower plug 9 on the lower mold 1.
At least two middle die positioning holes 17 are respectively formed in the outer side of a middle die product cavity 15 on the middle die 14, a second lower die positioning pin 3 matched with the middle die positioning holes 17 is arranged on the lower die 1, the middle die 14 is positioned and arranged on the upper surface of the lower die 1 through the middle die positioning holes 17 and the second lower die positioning pin 3, and in the rubber sealing piece forming process, the middle die 14 and the lower die 1 are fixedly attached through the matched installation of a middle die bolt 16 and a first lower die screw hole 4.
An upper die positioning pin 21, an upper die screw hole 22 and an upper die positioning hole 20 are also arranged on the upper die 18; an upper plug bolt 25, an upper plug positioning hole 26 and an upper plug mold core cavity 27 are arranged on the upper plug 24, the upper mold positioning pin 21 is inserted into the upper plug positioning hole 26, the upper plug bolt 25 is inserted into the upper mold screw hole 22 to fix the upper plug 24 on the upper mold 18, and the upper mold positioning hole 20 and the first lower mold positioning pin 2 are matched to position the upper mold 18
The mold core 13 is arranged in the cavity of the rubber sealing piece, the lower plugs 9 are arranged at the two ends of the lower mold 1, the upper plugs 24 are arranged at the two ends of the upper mold 18, and the lower plugs 9 are fixedly connected with the upper plugs 24 so as to limit the mold core 13.
A method for continuously forming a hollow fabric sealing member, which is characterized in that the method is applied to a mold of the hollow fabric sealing member, the mold comprises a lower mold 1, an upper mold 18 and a middle mold 14, the lower mold 1 is provided with a lower mold product cavity 5, the upper mold 18 is provided with an upper mold product cavity 19, the middle mold 14 is provided with a middle mold product cavity 15, the upper mold product cavity 19, the lower mold product cavity 5 and the middle mold product cavity 15 form a cavity of the product, a mold core 13 is arranged in the cavity of the product, lower plugs 9 are arranged at two ends of the lower mold 1, upper plugs 24 are arranged at two ends of the upper mold 18, the mold core 13 can be fixed through the lower plugs 9 and the upper plugs 24, a lower mold cloth retaining groove 8 is arranged outside the lower mold product cavity 5, and the depth of the lower mold cloth retaining groove 8 is larger than that of the lower mold product cavity 5, and the method comprises the following steps:
Step 1, spraying a release agent on the surfaces of a lower die product cavity 5, a middle die product cavity 15, an upper die product cavity 19 and a die core 13, spreading a tackified fabric in the lower die (1) product cavity (5) with lower plugs (9) at two sides, pulling out a reserved fabric for continuous forming through a lower die cloth retaining groove, wherein the reserved fabric has a size meeting the size requirement of the fabric for continuous forming of the whole product, placing a die core (13) for wrapping a semi-finished film on the fabric, matching the two ends of the die core (13) with the lower plugs (9) at two sides of the lower die (1), closing a middle die (14), sticking a layer of film in the die cavity of the product, leveling the fabric, closing an upper die (18) with upper plugs (24) at two sides, placing the die on a hot plate, stretching the die at one side of the reserved fabric out of the hot plate for 60-100 mm under the condition that the part of the hot plate surface is not completely vulcanized under a certain pressure under the condition that the main structure of a sealing element is completely vulcanized, opening the die, taking out the die after forming is completed, and forming a part of the whole product to form a part of the whole product;
Step 2) continuously forming reserved fabric is paved in a product cavity (5) of a lower die (1) with a lower plug (9) at one side of the reserved fabric, a die core (13) wraps a rubber sheet, one side of the die core (13) at one side of the reserved fabric is matched with the lower plug (9) at the side of the lower die (1), the other side of the reserved fabric is inserted into a formed product cavity for 20-60 mm, the formed product is used for fixing the side of the die core (13), a positioning function is achieved, the continuously forming reserved fabric is pulled out through a lower die cloth retaining groove (8), a middle die (14) is closed, a layer of rubber sheet is stuck in the product cavity, the fabric is leveled, an upper die (18) with an upper plug (24) is mounted at one side of the reserved fabric, the die is arranged on a hot plate, one side of the reserved fabric extends out of the hot plate for 60-100 mm, the die is vulcanized for 50min under a certain pressure at 160 ℃, and the product is taken out after the forming is completed;
Step 3) continuously vulcanizing the sealing piece with the length of 600mm according to the step 2), continuously vulcanizing 5 times for 5 times, and processing the sealing piece with the length of 3000 mm;
and 4) removing excessive burrs of the product to finish the production of the product.
Before step 1), the method further comprises the step of tackifying the fabric: soaking the fabric in 10% VTPS ethyl acetate solution for 2 hours, and airing the fabric for later use;
wherein the fabric comprises wear-resistant fabric and reinforcing fabric.
Mucus-increasing solutions include VTPS ethyl acetate solution, AI51 ethanol solution, and ST608 ethanol solution.
The technical principle of the present invention has been described above in connection with specific embodiments, but is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive effort and are intended to fall within the scope of the invention.
Claims (2)
1. The hollow mold with the fabric sealing piece is characterized by comprising a lower mold (1), an upper mold (18) and a middle mold (14), wherein a lower mold retaining groove (8) is arranged outside a lower mold product cavity (5) of the lower mold (1), the depth of the lower mold retaining groove (8) is larger than that of the lower mold product cavity (5), the upper mold (18) is provided with an upper mold product cavity (19), the middle mold (14) is provided with a middle mold product cavity (15), the upper mold product cavity (19), the middle mold product cavity (15) and the lower mold product cavity (5) are flush, the upper mold product cavity (19), the lower mold product cavity (5) and the middle mold product cavity (15) form a mold cavity of a product, a mold core (13) is arranged in the mold cavity of the product, the mold core (13) extends to the lower mold retaining groove (8), the lower mold retaining groove (8) is used for placing fabrics used in continuous molding of the product, and the lower mold retaining groove (8) is arranged at the end part of the lower mold (1);
An upper die cloth retaining groove (23) is formed in the end portion of the upper die (18), the depth of the upper die cloth retaining groove (23) is larger than that of an upper die product cavity (19) of the upper die (18), the upper die cloth retaining groove (23) is used for enabling a gap to be formed between the end portion of the upper die (18) and the reserved fabric when the upper die (18) is fixed, and the upper die cloth retaining groove (23) and the lower die cloth retaining groove (8) are located at the same end of the die;
the lower die cloth-reserving groove (8) is a step-shaped space at the end part of the lower die (1), and the upper die cloth-reserving groove (23) is a step-shaped space at the end part of the upper die (18).
2. The mold for the hollow fabric seal according to claim 1, wherein the lower plugs (9) are installed at both ends of the lower mold (1), the upper plugs (24) are installed at both ends of the upper mold (18), and the mold core is fixed by the lower plugs (9) and the upper plugs (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833930.8A CN110405990B (en) | 2019-09-04 | 2019-09-04 | Hollow mold with fabric sealing piece and continuous forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833930.8A CN110405990B (en) | 2019-09-04 | 2019-09-04 | Hollow mold with fabric sealing piece and continuous forming method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN110405990A CN110405990A (en) | 2019-11-05 |
| CN110405990B true CN110405990B (en) | 2024-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910833930.8A Active CN110405990B (en) | 2019-09-04 | 2019-09-04 | Hollow mold with fabric sealing piece and continuous forming method thereof |
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| CN (1) | CN110405990B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265192A (en) * | 2020-09-23 | 2021-01-26 | 西北橡胶塑料研究设计院有限公司 | Rubber sealing element with fabric on surface and forming die and forming method thereof |
| CN113829642B (en) * | 2021-09-17 | 2023-06-27 | 西北橡胶塑料研究设计院有限公司 | Hollow surface fabric sealing piece and forming die and method thereof |
| CN114834069B (en) * | 2022-04-12 | 2024-03-22 | 西北橡胶塑料研究设计院有限公司 | Preparation method of arc-shaped hollow rubber profile based on flexible positioning |
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| CN104190865A (en) * | 2014-07-31 | 2014-12-10 | 苏氏工业科学技术（北京）有限公司 | Die and wax part |
| CN109228048A (en) * | 2018-11-08 | 2019-01-18 | 西北橡胶塑料研究设计院有限公司 | A kind of aviation rubber seal mold and its forming method |
| CN210679328U (en) * | 2019-09-04 | 2020-06-05 | 西北橡胶塑料研究设计院有限公司 | Hollow mould with fabric sealing element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11138550A (en) * | 1997-11-05 | 1999-05-25 | Fujikura Rubber Ltd | Manufacture of fabril-filled rubber molded body |
| AT11073U1 (en) * | 2009-08-21 | 2010-04-15 | Josef Wann Gmbh | EDGE PLATE WITH EDGE PROTECTION AND METHOD FOR THE PRODUCTION THEREOF |
| CN204566571U (en) * | 2015-04-30 | 2015-08-19 | 南京金三力橡塑有限公司 | A kind of processing mold of stainless steel bonded washer |
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2019
- 2019-09-04 CN CN201910833930.8A patent/CN110405990B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190865A (en) * | 2014-07-31 | 2014-12-10 | 苏氏工业科学技术（北京）有限公司 | Die and wax part |
| CN109228048A (en) * | 2018-11-08 | 2019-01-18 | 西北橡胶塑料研究设计院有限公司 | A kind of aviation rubber seal mold and its forming method |
| CN210679328U (en) * | 2019-09-04 | 2020-06-05 | 西北橡胶塑料研究设计院有限公司 | Hollow mould with fabric sealing element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110405990A (en) | 2019-11-05 |
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