CN112172033A - Improved O-shaped sealing ring die - Google Patents

Improved O-shaped sealing ring die Download PDF

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Publication number
CN112172033A
CN112172033A CN202010942580.1A CN202010942580A CN112172033A CN 112172033 A CN112172033 A CN 112172033A CN 202010942580 A CN202010942580 A CN 202010942580A CN 112172033 A CN112172033 A CN 112172033A
Authority
CN
China
Prior art keywords
die cavity
lower die
glue
areas
cavities
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010942580.1A
Other languages
Chinese (zh)
Inventor
陈增宝
郭继刚
马进
吴攀
王正
邹婷
宦昌虎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Ningguo Zhongding Mould Manufacture Co Ltd
Original Assignee
Anhui Ningguo Zhongding Mould Manufacture Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Ningguo Zhongding Mould Manufacture Co Ltd filed Critical Anhui Ningguo Zhongding Mould Manufacture Co Ltd
Priority to CN202010942580.1A priority Critical patent/CN112172033A/en
Publication of CN112172033A publication Critical patent/CN112172033A/en
Pending legal-status Critical Current

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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—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
    • 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
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • 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

Abstract

The invention provides an improved O-shaped sealing ring die which comprises an upper die plate and a lower die plate which are arranged up and down; the bottom end of the upper template is provided with a plurality of upper die cavity areas, the upper die cavity areas are of circular structures, the center positions of the upper die cavity areas are provided with upper glue injection ports, and a plurality of upper die cavities are uniformly arranged in the upper die cavity areas; the lower bolster top is equipped with a plurality of lower die cavity districts, and lower die cavity district is circular structure and lower die cavity district central point puts and has seted up the mouth of making a bet, has evenly seted up a plurality of lower die cavitys in the lower die cavity district, through the spread groove intercommunication between two arbitrary adjacent lower die cavitys, still is equipped with a plurality of injecting glue grooves around making a bet mouthful setting and with make a bet mouth intercommunication in the lower die cavity district, and the injecting glue groove is kept away from to make a bet mouthful one end and is in inboard lower die cavity intercommunication. The upper die cavity area and the lower die cavity area are both distributed in a circular shape, two adjacent lower die cavities are connected together through the connecting groove, the upper glue injection port and the lower glue injection port are positioned at the circle center, and glue materials are dispersed from the circle center to the circumference during injection, so that the glue materials are more suitable for flowing.

Description

Improved O-shaped sealing ring die
Technical Field
The invention relates to the technical field of sealing ring molds, in particular to an improved O-shaped sealing ring mold.
Background
The traditional O-shaped rubber sealing ring mold is of a mold pressing and edge tearing structure, a preformed rubber strip is manually placed between an upper template and a lower template, and the preformed rubber strip is subjected to mold closing and pressure forming through the mold; the preformed adhesive tape needs to be prepared in advance, the auxiliary time and the vulcanization time are long, the product flash is thick, and the unit consumption is high; and (4) manual demolding, namely manually tearing the flash and the machine sand edge in the subsequent process. And the manual edge tearing process has low efficiency, high cost and unstable product quality.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an improved O-shaped sealing ring die.
The invention provides an improved O-shaped sealing ring die which comprises an upper die plate and a lower die plate which are arranged up and down; the bottom end of the upper template is provided with a plurality of upper die cavity areas, the upper die cavity areas are of circular structures, the center positions of the upper die cavity areas are provided with upper glue injection ports, and a plurality of upper die cavities are uniformly arranged in the upper die cavity areas; the top end of the lower template is provided with a plurality of lower die cavity areas, the lower die cavity areas are of a circular structure, the center positions of the lower die cavity areas are provided with lower glue pouring ports, a plurality of lower die cavities are uniformly arranged in the lower die cavity areas, any two adjacent lower die cavities are communicated through connecting grooves, a plurality of glue injection grooves which are arranged around the lower glue pouring ports and communicated with the lower glue pouring ports are also arranged in the lower die cavity areas, and one ends of the glue injection grooves, far away from the lower glue pouring ports, are communicated with the lower die cavities on the inner sides; and in the die closing state, the lower die cavity areas are respectively arranged in one-to-one correspondence with the upper die cavity areas, the lower glue injection ports of the lower die cavity areas are correspondingly communicated with the upper glue injection ports of the corresponding upper die cavity areas, and the lower die cavities of the lower die cavity areas are respectively matched with the upper die cavities of the corresponding upper die cavity areas to form a plurality of O-shaped sealing ring forming cavities.
Preferably, a plurality of upper die cavity rings concentrically arranged with the upper glue injection port are arranged in the upper die cavity area, and each upper die cavity ring is formed by a plurality of upper die cavities uniformly distributed circumferentially.
Preferably, a plurality of lower die cavity rings which are concentric with the lower glue pouring port are arranged in the lower die cavity area, each lower die cavity ring is formed by a plurality of lower die cavities which are uniformly distributed in the circumference, any two adjacent lower die cavities of the same lower die cavity ring are communicated through a connecting groove, and the lower die cavity of the lower die cavity ring positioned on the inner side is communicated with the lower die cavity of the lower die cavity ring positioned on the outer side through a connecting groove.
Preferably, the top end of the lower template is also provided with an installation groove arranged around the lower die cavity regions, and a rubber sealing ring is installed in the installation groove.
Preferably, the cold runner assembly further comprises a runner plate assembly and a plurality of branch gate assemblies which are arranged inside the runner plate assembly and are respectively used for injecting glue to the plurality of upper glue injection ports.
Preferably, the runner plate assembly comprises a runner plate, a heat insulation plate and a heating plate which are sequentially arranged from top to bottom, the heating plate and the upper die plate are assembled together, glue injection channels for conveying glue materials to the plurality of branch gate assemblies are arranged in the runner plate, an upper-layer cooling circulation loop for allowing a refrigerant medium to enter and flow is arranged in the runner plate and above the glue injection channels, and a lower-layer cooling circulation loop for allowing the refrigerant medium to enter and flow is arranged in the runner plate and below the glue injection channels.
According to the improved O-shaped sealing ring mold provided by the invention, a cold runner injection and mold pressing combined mode is adopted, the upper mold cavity area and the lower mold cavity area are both distributed in a circular shape, two adjacent lower mold cavities are connected together through a connecting groove, the upper glue injection port and the lower glue injection port are positioned at the circle center, and glue materials are dispersed from the circle center to the circumference during injection and are more suitable for flowing; the cold runner system is used for injecting the rubber material to replace manual feeding, so that the injection amount is accurate and easy to control, the preforming process is reduced, the waste rubber generated in the traditional hot runner is saved, and the time spent on manually taking the waste rubber is saved; the runner of the cold runner system is in a semi-closed state, and the flow speed and the pressure of the rubber material in the runner are high during injection, so that the vulcanization time is shortened and is reduced from 240 seconds to 180 seconds; the particle freezing edge removing structure design is adopted, so that rubber materials are saved, the particle freezing edge removing efficiency is high, manual trimming and edge grinding are not needed, and the labor cost is reduced; the manipulator is adopted for automatic demoulding and the demoulding agent is sprayed, so that manual intervention is not needed in the whole production process except for timing feeding, and the labor cost is saved.
Drawings
FIG. 1 is a schematic structural diagram of an improved O-shaped seal ring mold according to the present invention;
FIG. 2 is a schematic structural diagram of an upper mold plate in an improved O-shaped sealing ring mold according to the present invention;
fig. 3 is a schematic structural view of a middle and lower template of an improved O-ring die according to the present invention.
Detailed Description
Referring to fig. 1 to 3, the invention provides an improved O-shaped seal ring mold, which comprises an upper template 1 and a lower template 2 which are arranged up and down; wherein:
the bottom end of the upper template 1 is provided with a plurality of upper mold cavity areas, each upper mold cavity area is of a circular structure, an upper glue injection port 3 is formed in the center of each upper mold cavity area, a plurality of upper mold cavity rings concentrically arranged with the upper glue injection ports 3 are arranged in each upper mold cavity area, and each upper mold cavity ring is formed by a plurality of upper mold cavities 4 which are uniformly distributed on the circumference.
The top end of the lower template 2 is provided with a plurality of lower die cavity areas, the lower die cavity areas are of a circular structure, the center of each lower die cavity area is provided with a lower glue pouring port 5, a plurality of lower die cavity rings concentrically arranged with the lower glue pouring ports 5 are arranged in the lower die cavity areas, each lower die cavity ring is formed by a plurality of lower die cavities 6 which are uniformly distributed on the circumference, any two adjacent lower die cavities 6 of the same lower die cavity ring are communicated through a connecting groove 7, and the lower die cavities 6 of the lower die cavity ring on the inner side and the lower die cavities 6 of the lower die cavity ring on the outer side are communicated through the connecting groove 7. A plurality of glue injection grooves 8 which are arranged around the glue injection port 5 and communicated with the glue injection port 5 are also arranged in the lower die cavity area, and one end, far away from the glue injection port 5, of each glue injection groove 8 is communicated with the lower die cavity 6 on the inner side.
In a die closing state, a plurality of lower die cavity areas are respectively arranged in one-to-one correspondence with a plurality of upper die cavity areas, the lower glue pouring port 5 of the lower die cavity area is correspondingly communicated with the upper glue pouring port 3 of the corresponding upper die cavity area, and a plurality of lower die cavities 6 of the lower die cavity area are respectively matched with a plurality of upper die cavities 4 of the corresponding upper die cavity area to form a plurality of O-shaped sealing ring forming cavities.
In the specific embodiment, the top end of the lower template 2 is further provided with mounting grooves arranged around a plurality of lower die cavity areas, and rubber sealing rings 9 are mounted in the mounting grooves.
In the specific embodiment, the cold runner assembly further comprises a runner plate assembly and a plurality of branch gate assemblies 10 which are installed inside the runner plate assembly and are respectively used for injecting glue to the plurality of upper glue injection ports 3. The runner plate assembly comprises a runner plate 11, a heat insulation plate 12 and a heating plate 13 which are sequentially arranged from top to bottom, the heating plate 13 is assembled with the upper template 1, a glue injection channel 14 for conveying glue materials to the plurality of branch gate assemblies 10 is arranged in the runner plate 11, an upper-layer cooling circulation loop 15 for allowing a refrigerant medium to enter and flow is arranged in the runner plate 11 and above the glue injection channel 14, and a lower-layer cooling circulation loop 16 for allowing the refrigerant medium to enter and flow is arranged in the runner plate 11 and below the glue injection channel 14.
The die consists of a cold runner assembly, an upper die plate 1 and a lower die plate 2; the cold runner assembly is fixed on an upper hot plate of a vulcanizing press through bolts, the upper template 1 is fixed on the cold runner assembly through bolts, the lower template 2 is fixed on a lower hot plate of the vulcanizing press through bolts, a forming cavity is arranged between the upper template 1 and the lower template 2, and the upper template and the lower template are positioned through fine positioning and guide posts; an air passage is arranged in the upper template 1, a rubber sealing ring 9 is arranged on the lower template 2 to prevent outside air from entering, and the air pump pumps out air in the air passage cavity. According to the invention, a structure combining cold runner injection and mould pressing is adopted, and a gap of about 1mm is opened between the upper template 1 and the lower template 2 under the control of equipment, so that a sealed space is formed between the upper template 1 and the lower template 2 and the rubber sealing ring 9, and the air pump starts to work to pump vacuum; when the vacuum meets the requirement, the cold runner assembly injects rubber, and the rubber flows in a divergent mode from the circle center to the circumferential direction along the gap; after injection is finished, the upper template 1 and the lower template 2 are matched under the control of equipment, and extruded rubber continuously flows radially until the whole molding cavity is filled; after a certain time, the vulcanization is finished, the mold is opened under the control of the vulcanization equipment, the lower template 2 is pushed out along with the lower hot plate of the vulcanization press, at the moment, the manipulator arranged above moves downwards to clamp the convex main material fins, meanwhile, the air gun arranged on the manipulator starts to blow air, and the manipulator clamps the product and then places the product in the collection box, which is a production flow.
The invention adopts a mode of combining cold runner injection and mould pressing, the upper mould cavity area and the lower mould cavity area are both distributed in a circular shape, two adjacent lower mould cavities are connected together through a connecting groove, the upper glue injection port 3 and the lower glue injection port 5 are positioned at the circle center, and glue materials are dispersed from the circle center to the circumference during injection and are more suitable for flowing; the cold runner system is used for injecting the rubber material to replace manual feeding, so that the injection amount is accurate and easy to control, the preforming process is reduced, the waste rubber generated in the traditional hot runner is saved, and the time spent on manually taking the waste rubber is saved; the runner of the cold runner system is in a semi-closed state, and the flow speed and the pressure of the rubber material in the runner are high during injection, so that the vulcanization time is shortened and is reduced from 240 seconds to 180 seconds; the particle freezing edge removing structure design is adopted, so that rubber materials are saved, the particle freezing edge removing efficiency is high, manual trimming and edge grinding are not needed, and the labor cost is reduced; the manipulator is adopted for automatic demoulding and the demoulding agent is sprayed, so that manual intervention is not needed in the whole production process except for timing feeding, and the labor cost is saved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (6)

1. An improved O-shaped sealing ring die is characterized by comprising an upper die plate (1) and a lower die plate (2) which are arranged up and down; the bottom end of the upper template (1) is provided with a plurality of upper die cavity areas, the upper die cavity areas are of circular structures, the center positions of the upper die cavity areas are provided with upper glue injection ports (3), and a plurality of upper die cavities (4) are uniformly arranged in the upper die cavity areas; the top end of the lower template (2) is provided with a plurality of lower die cavity areas, the lower die cavity areas are of a circular structure, the center positions of the lower die cavity areas are provided with lower glue pouring ports (5), a plurality of lower die cavities (6) are uniformly arranged in the lower die cavity areas, any two adjacent lower die cavities (6) are communicated through connecting grooves (7), a plurality of glue injection grooves (8) which are arranged around the lower glue pouring ports (5) and communicated with the lower glue pouring ports (5) are also arranged in the lower die cavity areas, and one ends, far away from the lower glue pouring ports (5), of the glue injection grooves (8) are communicated with the lower die cavities (6) on the inner side; in a die closing state, the lower die cavity areas are respectively arranged in one-to-one correspondence with the upper die cavity areas, the lower glue pouring openings (5) of the lower die cavity areas are correspondingly communicated with the upper glue pouring openings (3) of the corresponding upper die cavity areas, and the lower die cavities (6) of the lower die cavity areas are respectively matched with the upper die cavities (4) of the corresponding upper die cavity areas to form a plurality of O-shaped sealing ring forming cavities.
2. The improved O-ring mold according to claim 1, wherein a plurality of upper cavity rings concentrically arranged with the upper injection port (3) are provided in the upper cavity region, and the upper cavity rings are formed by a plurality of upper cavities (4) uniformly distributed circumferentially.
3. The improved O-shaped sealing ring mold as claimed in claim 2, characterized in that a plurality of lower mold cavity rings are arranged in the lower mold cavity area, the lower mold cavity rings are concentric with the lower injection ports (5), the lower mold cavity rings are formed by a plurality of lower mold cavities (6) which are uniformly distributed in the circumferential direction, any two adjacent lower mold cavities (6) of the same lower mold cavity ring are communicated through connecting grooves (7), and the lower mold cavity (6) of the lower mold cavity ring positioned at the inner side is communicated with the lower mold cavity (6) of the lower mold cavity ring positioned at the outer side through the connecting grooves (7).
4. The improved O-shaped sealing ring die as claimed in any one of claims 1 to 3, wherein the top end of the lower die plate (2) is further provided with a mounting groove arranged around the lower die cavity regions, and a rubber sealing ring (9) is mounted in the mounting groove.
5. The improved O-shaped seal ring mold according to any one of claims 1-3, further comprising a cold runner assembly, wherein the cold runner assembly comprises a runner plate assembly and a plurality of branch gate assemblies (10) which are arranged inside the runner plate assembly and are respectively used for injecting glue to the plurality of upper glue injection ports (3).
6. The improved O-shaped seal ring die as claimed in claim 5, wherein the runner plate assembly comprises a runner plate (11), a heat insulation plate (12) and a heating plate (13) which are sequentially arranged from top to bottom, the heating plate (13) is assembled with the upper die plate (1), a glue injection channel (14) for conveying glue to the plurality of sprue distribution assemblies (10) is arranged inside the runner plate (11), an upper cooling circulation loop (15) for allowing a cooling medium to enter and flow is arranged in the runner plate (11) and above the glue injection channel (14), and a lower cooling circulation loop (16) for allowing the cooling medium to enter and flow is arranged in the runner plate (11) and below the glue injection channel (14).
CN202010942580.1A 2020-09-09 2020-09-09 Improved O-shaped sealing ring die Pending CN112172033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010942580.1A CN112172033A (en) 2020-09-09 2020-09-09 Improved O-shaped sealing ring die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010942580.1A CN112172033A (en) 2020-09-09 2020-09-09 Improved O-shaped sealing ring die

Publications (1)

Publication Number Publication Date
CN112172033A true CN112172033A (en) 2021-01-05

Family

ID=73920301

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010942580.1A Pending CN112172033A (en) 2020-09-09 2020-09-09 Improved O-shaped sealing ring die

Country Status (1)

Country Link
CN (1) CN112172033A (en)

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