CN112356425A - Fluorine rubber cylinder tool and using method - Google Patents

Fluorine rubber cylinder tool and using method Download PDF

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Publication number
CN112356425A
CN112356425A CN202011022791.XA CN202011022791A CN112356425A CN 112356425 A CN112356425 A CN 112356425A CN 202011022791 A CN202011022791 A CN 202011022791A CN 112356425 A CN112356425 A CN 112356425A
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China
Prior art keywords
mounting groove
cover
die cover
fluorine rubber
raw material
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CN202011022791.XA
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Chinese (zh)
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CN112356425B (en
Inventor
逄增智
司晶
廖江钟
韦良合
邓裕
梁海
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Guizhou Hongyang Machinery Co ltd
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Guizhou Hongyang Machinery Co ltd
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Priority to CN202011022791.XA priority Critical patent/CN112356425B/en
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Publication of CN112356425B publication Critical patent/CN112356425B/en
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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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/42—Heating or cooling
    • B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a fluorine rubber cylinder tool and a using method thereof, wherein the fluorine rubber cylinder tool comprises the following steps: the mould comprises an upper mould cover, a lower mould cover corresponding to the upper mould cover in a matching way and a mould core positioned between the upper mould cover and the lower mould cover; the upper die cover is provided with an upper raw material mounting groove, and the lower die cover is provided with a lower raw material mounting groove; the two ends of the upper die cover positioned at the two ends of the upper raw material mounting groove are provided with a core end part mounting groove A; and the two ends of the lower die cover positioned at the two ends of the lower raw material mounting groove are provided with core end part mounting grooves A. During installation, one piece of raw material is deformed and installed in a lower raw material installation groove of a lower die cover and pressed by the lower part of a die core, the other piece of raw material is deformed, installed and wrapped on the upper part of the die core and pressed by an upper die cover, so that the problem that the raw material is deformed and contacted with the die core to block die assembly in the prior die technology is solved, and the production efficiency is improved; when the fluorine rubber cylinder is molded and separated, when the lower die cover is separated from the upper die cover, air can be filled from the axial end face of the fluorine rubber cylinder, and the problem of negative pressure formation in the prior die technology is solved.

Description

Fluorine rubber cylinder tool and using method
Technical Field
The invention relates to a fluorine rubber cylinder tool and a using method thereof, belonging to the technical field of production of sealing parts.
Background
When a fluorine rubber cylinder for sealing is produced, flatness of inner and outer diameter circumferential arc surfaces and two end planes of the fluorine rubber cylinder needs to be ensured after the fluorine rubber cylinder is produced, a mold for producing the fluorine rubber cylinder at present is shown in fig. 3, the mold comprises an outer mold cylinder body 20 and a mold core 22, after the mold thermoplastically molds two separated raw materials into the fluorine rubber cylinder 51 by a thermoplasticity molding machine, the outer mold cylinder body and the mold core need to be pulled oppositely along the axial direction, the mold core drives the fluorine rubber cylinder to be pulled out of the outer mold cylinder body, when the fluorine rubber cylinder is separated from the left end surface of the outer mold cylinder body in the opposite pulling process, as the mold core blocks the left end surface hole of the outer mold cylinder body, a negative pressure is formed at a gap between the fluorine rubber cylinder and the left end of the outer mold cylinder body, a crack is easy to exist at the edge of the end surface;
meanwhile, when two separated raw materials are put into the outer die cylinder, the raw materials are fluorine glue, so that the fluorine glue is easy to deform and contact with the die core when the die core is put into the outer die cylinder, the die core and the outer die cylinder are prevented from being assembled, and the production efficiency is reduced.
Disclosure of Invention
In order to solve the technical problem, the invention provides a fluorine rubber cylinder tool.
The invention also discloses a use method of the fluorine rubber cylinder tool
The invention is realized by the following technical scheme.
The invention provides a fluorine rubber cylinder tool, which comprises: the mould comprises an upper mould cover, a lower mould cover corresponding to the upper mould cover in a matching way and a mould core positioned between the upper mould cover and the lower mould cover;
the upper die cover is provided with an upper raw material mounting groove, and the lower die cover is provided with a lower raw material mounting groove; the upper die cover and the lower die cover can be matched in a separable mode, and the upper raw material mounting groove and the lower raw material mounting groove form a cavity corresponding to the shape of the outer portion of the fluorine rubber cylinder;
the two ends of the upper die cover positioned at the two ends of the upper raw material mounting groove are provided with a core end part mounting groove A;
the lower mould lid both ends that are located raw materials mounting groove both ends down are equipped with core tip mounting groove A, and in core tip mounting groove A, core tip mounting groove A were stretched into at the core both ends, the cavity that the core periphery and last raw materials mounting groove and raw materials mounting groove formed down formed the fashioned airtight space of messenger fluorine packing element.
The mold core comprises a first circular step, a second circular step and a third circular step, wherein the outer diameter of the first circular step is larger than that of the third circular step and is smaller than that of the second circular step; the first circular step corresponds to a cavity formed by the upper raw material mounting groove and the lower raw material mounting groove; one end of the upper die cover perpendicular to the direction of the core end mounting groove A is provided with a reinforcement guide mounting groove A, one end of the lower die cover perpendicular to the direction of the core end mounting groove A is provided with a reinforcement guide mounting groove B, and the upper end and the lower end of the second circular step are in clearance fit with the reinforcement guide mounting groove A and the reinforcement guide mounting groove B by 1-0.5 mm;
when the mold core is installed, the second circular step is matched with the reinforcement guide installation groove A and the reinforcement guide installation groove B to provide guide for the installation of the upper mold cover and the lower mold cover, and when the installation is finished, an air film layer exists on the axial surface of the second circular step and the surfaces of the reinforcement guide installation groove A and the reinforcement guide installation groove B, so that the mold core is prevented from being jacked up by deformation force generated by raw materials installed below the mold core, and the locking force after the upper mold cover and the lower mold cover are matched is increased.
Two opposite side edges of the lower die cover which is in matched contact with the upper die cover are provided with sinking platforms which are not communicated with the lower raw material mounting groove; after the upper die cover and the lower die cover are closed, the upper die cover and the lower die cover are separated at the side edges by the aid of the sinking platform, and tools can conveniently stretch into the surface contacting the upper die cover to apply force to pry the upper die cover and the lower die cover through the separation.
A guide column body is arranged on the lower die cover; the upper die cover is provided with a guide hole matched with the guide cylinder body, and guide is further provided when the upper die cover is matched with the lower die cover.
The use method of the fluorine rubber cylinder tool comprises the following steps:
the method comprises the following steps: the method comprises the following steps of (1) well assembling raw materials, placing an integral die on a thermoplastic forming machine, pressing an upper die cover and a lower die cover by the thermoplastic forming machine, heating the integral, and forming a first circular step of a cavity wrapping core by a fluorine rubber cylinder, wherein the cavity is formed by an upper raw material mounting groove of the upper die cover and a lower raw material mounting groove of the lower die cover;
step two: a crowbar with hardness smaller than that of the upper die cover and the lower die cover extends into the sinking tables at two sides, the upper die cover and the lower die cover are synchronously pried from two sides, and the upper die cover and the lower die cover are synchronously separated at the synchronous side edges under the guide of the spaced guide cylinders;
step three: the crowbar extends into the gap between the third circular step and the end parts of the upper die cover and the lower die cover to be pried, meanwhile, the other end of the first circular step is assisted, the upper end and the lower end of the second circular step are stably separated from the reinforcement guide mounting groove A and the reinforcement guide mounting groove B in a matched mode, and then the fluorine rubber cylinder is separated from the first circular step on the mold core.
The invention has the beneficial effects that: during installation, one piece of raw material is deformed and installed in a lower raw material installation groove of a lower die cover and pressed by the lower part of a die core, the other piece of raw material is deformed, installed and wrapped on the upper part of the die core and pressed by an upper die cover, so that the problem that the raw material is deformed and contacted with the die core to block die assembly in the prior die technology is solved, and the production efficiency is improved; when the fluorine rubber tube shaping breaks away from, when the lower mould lid with go up the mould lid separation, the air just can fill from the axial terminal surface of fluorine rubber tube and get into, has solved the problem that forms the negative pressure among the prior art mould, has avoided the cracked existence condition in fluorine rubber tube terminal surface edge, and the product percent of pass improves to more than 85%.
Drawings
FIG. 1 is a schematic view of the structural installation of the present invention;
FIG. 2 is a schematic sectional front view of the present invention in use;
FIG. 3 is a schematic sectional front view of a prior art in use;
in the figure: 1, mounting a mold cover; 11-installing a raw material installation groove; 12-core end mounting groove a; 13-reinforcement guide mounting groove A; 14-a pilot hole; 2-lower mould cover; 21-lower raw material mounting groove; 22-core end mounting groove a; 23-reinforcement guide mounting groove B; 24-sinking a platform; 25-a guide cylinder; 3-a mold core; 31-a first circular step; 32-a second circular step; 33-a third circular step; 51-fluorine rubber cylinder.
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. 1-2.
The invention relates to a fluorine rubber cylinder tool, which comprises: the mold comprises an upper mold cover 1, a lower mold cover 2 corresponding to the upper mold cover 1 in a matched mode, and a mold core 3 positioned between the upper mold cover 1 and the lower mold cover 2;
the upper die cover 1 is provided with an upper raw material mounting groove 11, and the lower die cover 2 is provided with a lower raw material mounting groove 21; the upper die cover 1 and the lower die cover 2 can be matched in a separable way, and the upper raw material mounting groove 11 and the lower raw material mounting groove 21 form a cavity corresponding to the external shape of the fluorine rubber cylinder 51;
the two ends of the upper die cover 1 positioned at the two ends of the upper raw material mounting groove 11 are provided with a core end mounting groove A12;
the two ends of the lower die cover 2 positioned at the two ends of the lower raw material mounting groove 21 are provided with a core end mounting groove A22, the two ends of the core 3 stretch into the core end mounting groove A12 and the core end mounting groove A22, and the periphery of the core 3 and the cavity formed by the upper raw material mounting groove 11 and the lower raw material mounting groove 21 form a closed space for molding the fluorine rubber cylinder 51.
During installation, one raw material is deformed and installed in a lower raw material installation groove 21 of a lower die cover 2 and pressed by the lower part of a die core 3, the other raw material is deformed and installed to wrap the upper part of the die core 3, and then the upper die cover 1 is used for pressing, so that the problem that the raw material is deformed and contacts with the die core to block die assembly in the prior die technology is solved, and the production efficiency is improved;
when fluorine rubber cylinder 51 shaping breaks away from, when lower mould lid 2 and upper mould lid 1 separation, the air just can fill from fluorine rubber cylinder 51's axial terminal surface and get into, has solved the problem that forms the negative pressure among the prior art of mould, has avoided the cracked existence condition in fluorine rubber cylinder terminal surface edge, and the product percent of pass improves to more than 85%.
The mold core 3 comprises a first circular step 31, a second circular step 32 and a third circular step 33, wherein the outer diameter of the first circular step 31 is larger than that of the third circular step 33 and is smaller than that of the second circular step 32; the first circular step 31 corresponds to a cavity formed by the upper raw material installation groove 11 and the lower raw material installation groove 21; one end of the upper die cover 1 perpendicular to the direction of the core end mounting groove A12 is provided with a reinforcement guide mounting groove A13, one end of the lower die cover 2 perpendicular to the direction of the core end mounting groove A22 is provided with a reinforcement guide mounting groove B23, and the upper end and the lower end of the second circular step 32 are in clearance fit with the reinforcement guide mounting groove A13 and the reinforcement guide mounting groove B23 by 1-0.5 mm;
when the core 3 is installed, the second circular step 32 is matched with the reinforcement guide installation groove A13 and the reinforcement guide installation groove B23 to provide guidance for the installation of the upper die cover 1 and the lower die cover 2, and after the installation is finished, an air film layer exists on the axial surface of the second circular step 32 and the surfaces of the reinforcement guide installation groove A13 and the reinforcement guide installation groove B23, so that the core 3 is prevented from being jacked up by deformation force generated by raw materials installed below the core 3, and the locking force after the upper die cover 1 and the lower die cover 2 are matched is increased.
The reinforcement guide mounting groove A13 and the reinforcement guide mounting groove B23 are through grooves communicated with the upper surface and the lower surface, so that air is conveniently discharged during mounting, and meanwhile, the groove body is convenient to machine.
The shape of the reinforcement guide mounting groove A13 and the reinforcement guide mounting groove B23 is arc-shaped corresponding to the second circular step 32 or a rectangular groove equal to the maximum width of the second circular step 32.
Gaps are formed among the third circular step 33, the first circular step 31, the grooves at the end parts of the upper die cover 1 and the lower die cover 2; be convenient for pry open upper die cover 1, lower die cover 2 through the clearance and realize the separation, the compressing tightly of core 3 when being convenient for simultaneously install.
Two opposite side edges of the lower die cover 2 which is in matched contact with the upper die cover 1 are provided with sinking platforms 24, and the sinking platforms 24 are not communicated with the lower raw material mounting groove 21; after the upper die cover 1 and the lower die cover 2 are closed, the sinking platform 24 enables the upper die cover 1 and the lower die cover 2 to have an interval at the side edge, and a tool which is convenient to extend into the surface contacting the upper die cover 1 through the interval can apply force to pry.
The lower die cover 2 is provided with a guide column 25; and the upper die cover 1 is provided with a guide hole 14 matched with the guide column body 25, so that the upper die cover 1 is further guided when being matched with the lower die cover 2.
The guide columns 25 are at least two in the diagonal positions of the mold cover 2, so that the displacement of the upper mold cover 1 in the matching with the lower mold cover 2 is further limited, and the synchronous matching of the upper mold cover and the lower mold cover is improved.
The guide cylinder 25 is a conical cylinder; the guide hole 14 is a conical round hole, and the guide column 25 is matched with the guide hole 14 in a diagonal manner, so that the guidance quality is improved.
The guide column 25 and the lower mold cover 2 are fixedly connected into a whole or connected in a screwing mode through threads.
The use method of the fluorine rubber cylinder tool comprises the following steps:
the method comprises the following steps: the method comprises the following steps of (1) well assembling raw materials, placing an integral die on a thermoplastic forming machine, pressing an upper die cover 1 and a lower die cover 2 by the thermoplastic forming machine, heating the integral, and forming a first circular step 31 of a core 3 by a fluorine rubber cylinder 51 in a cavity formed by an upper raw material mounting groove 11 of the upper die cover 1 and a lower raw material mounting groove 21 of the lower die cover 2;
step two: a crowbar with hardness smaller than that of the upper die cover 1 and the lower die cover 2 is extended into the sinking platforms 24 at two sides, the upper die cover 1 and the lower die cover 2 are synchronously pried from two sides, and the upper die cover 1 and the lower die cover 2 are synchronously separated at the synchronous side under the guidance of the spaced guide cylinders 25;
if in the second step, a crowbar is adopted to directly extend into the gaps between the third circular step 33 and the end parts of the upper mold cover 1 and the lower mold cover 2, or the gaps between the first circular step 31 and the end parts of the upper mold cover 1 and the lower mold cover 2, the core 3 is pried from one end to drive the upper mold cover 1 to be separated from the lower mold cover 2 together upwards, so that one end of the core is pressed, gas at the end part cannot be released quickly, negative pressure or high pressure can be generated on the end surfaces of the fluorine rubber cylinder 51, the upper mold cover 1 and the lower mold cover 2, and the fluorine rubber cylinder 51 is extruded to be cracked.
Step three: the crowbar extends into the third round step 33 to pry the gap between the third round step and the end parts of the upper die cover 1 and the lower die cover 2, meanwhile, the other end of the first round step 31 is assisted, the upper end and the lower end of the second round step 32 are stably separated from the reinforcement guide mounting groove A13 and the reinforcement guide mounting groove B23 in a matched mode, and then the fluorine rubber barrel 51 is separated from the first round step 31 on the mold core 3.

Claims (10)

1. The utility model provides a fluorine rubber tube frock which characterized in that includes: the mould comprises an upper mould cover (1), a lower mould cover (2) corresponding to the upper mould cover (1) in a matched mode, and a mould core (3) positioned between the upper mould cover (1) and the lower mould cover (2);
the upper die cover (1) is provided with an upper raw material mounting groove (11), and the lower die cover (2) is provided with a lower raw material mounting groove (21); the upper die cover (1) and the lower die cover (2) can be matched in a separable mode, and a cavity corresponding to the outer shape of the fluorine rubber cylinder (51) is formed in the upper raw material mounting groove (11) and the lower raw material mounting groove (21);
the two ends of the upper die cover (1) positioned at the two ends of the upper raw material mounting groove (11) are provided with a core end part mounting groove A (12);
the lower die cover (2) both ends that are located raw materials mounting groove (21) both ends down are equipped with core tip mounting groove A (22), and core (3) both ends stretch into in core tip mounting groove A (12), core tip mounting groove A (22), and the cavity formation that core (3) periphery and last raw materials mounting groove (11) and lower raw materials mounting groove (21) formed makes fluorine rubber section of thick bamboo (51) fashioned airtight space.
2. The fluorine rubber cylinder tool set forth in claim 1, characterized in that: the mold core (3) comprises a first circular step (31), a second circular step (32) and a third circular step (33), wherein the outer diameter of the first circular step (31) is larger than that of the third circular step (33) and is smaller than that of the second circular step (32); the first round step (31) corresponds to a cavity formed by the upper raw material mounting groove (11) and the lower raw material mounting groove (21); and one end of the upper die cover (1) perpendicular to the direction of the core end part mounting groove A (12) is provided with a reinforcement guide mounting groove A (13), one end of the lower die cover (2) perpendicular to the direction of the core end part mounting groove A (22) is provided with a reinforcement guide mounting groove B (23), and the upper end and the lower end of the second round step (32) are matched with the reinforcement guide mounting groove A (13) and the reinforcement guide mounting groove B (23).
3. The fluorine rubber cylinder tool set forth in claim 2, characterized in that: and the reinforcement guide mounting groove A (13) and the reinforcement guide mounting groove B (23) are through grooves communicated with the upper surface and the lower surface.
4. The fluorine rubber cylinder tool set forth in claim 2, characterized in that: the shape of the reinforcement guide mounting groove A (13) and the reinforcement guide mounting groove B (23) is arc-shaped or rectangular groove.
5. The fluorine rubber cylinder tool set forth in claim 2, characterized in that: gaps are reserved among the third round step (33), the first round step (31), the upper die cover (1) and the grooves at the end parts of the lower die cover (2).
6. The fluorine rubber cylinder tool set forth in claim 1 or 2, characterized in that: a guide column body (25) is arranged on the lower die cover (2); and the upper die cover (1) is provided with a guide hole (14) matched with the guide column body (25).
7. The fluorine rubber cylinder tool set forth in claim 6, characterized in that: the number of the guide columns (25) is at least two, and the guide columns are positioned on the diagonal positions of the mould cover (2).
8. The fluorine rubber cylinder tool set forth in claim 7, characterized in that: the guide cylinder (25) is a conical cylinder; the guide hole (14) is a conical round hole, and the guide column body (25) is matched with the guide hole (14) in a diagonal manner.
9. The fluorine rubber cylinder tool set forth in claim 8, characterized in that: the guide column body (25) and the lower die cover (2) are fixedly connected into a whole or connected in a screwing mode through threads.
10. A method of using the fluorine rubber cartridge tool of any one of claims 1 to 9, comprising the steps of: the method comprises the following steps: the method comprises the following steps that raw materials are assembled, an integral die is placed on a thermoplastic forming machine, the thermoplastic forming machine compresses an upper die cover (1) and a lower die cover (2) tightly to heat the integral die, and a fluorine rubber cylinder (51) is formed in a first round step (31) of a cavity wrapping mold core (3) formed in an upper raw material mounting groove (11) of the upper die cover (1) and a lower raw material mounting groove (21) of the lower die cover (2); step two: a crowbar with hardness smaller than that of the upper die cover (1) and the lower die cover (2) is inserted into the sinking platforms (24) at two sides, the upper die cover (1) and the lower die cover (2) are synchronously pried from two sides, and the upper die cover (1) and the lower die cover (2) are synchronously separated at the synchronous side under the guidance of the spaced guide cylinders (25); step three: the crowbar extends into the third circular step (33) to pry the gap between the end parts of the upper mold cover (1) and the lower mold cover (2), meanwhile, the other end of the first circular step (31) is assisted, the upper end and the lower end of the second circular step (32) are stably separated from the reinforcement guide mounting groove A (13) and the reinforcement guide mounting groove B (23) in a matched mode, and then the fluorine rubber cylinder (51) is separated from the first circular step (31) on the mold core (3).
CN202011022791.XA 2020-09-25 2020-09-25 Fluorine rubber cylinder tool and use method Active CN112356425B (en)

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CN112356425B CN112356425B (en) 2023-05-16

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CN2340598Y (en) * 1998-09-11 1999-09-29 周迪 Rubber cylinder demoulding device
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WO2016058591A1 (en) * 2014-10-13 2016-04-21 Friedrich Glas Mould core and method for producing moulded parts
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CN206561531U (en) * 2017-03-13 2017-10-17 东莞市胜辉模具有限公司 A kind of mould for being used to produce silica gel massage bar
CN208375716U (en) * 2018-04-25 2019-01-15 成都托克密封件有限责任公司 A kind of rubber sleeve for packer molding die of pre- indent
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Publication number Priority date Publication date Assignee Title
US5064366A (en) * 1990-05-15 1991-11-12 Nissei Asb Machine Co., Ltd. Blow mold
CN2340598Y (en) * 1998-09-11 1999-09-29 周迪 Rubber cylinder demoulding device
WO2002075177A1 (en) * 2001-03-15 2002-09-26 Toyo Tire & Rubber Co.,Ltd. Connection rod
JP2007030273A (en) * 2005-07-25 2007-02-08 Toyo Tire & Rubber Co Ltd Manufacturing method of rubber cylindrical body
WO2016058591A1 (en) * 2014-10-13 2016-04-21 Friedrich Glas Mould core and method for producing moulded parts
CN206297046U (en) * 2016-08-30 2017-07-04 天津三卓韩一橡塑科技股份有限公司 A kind of groove assembled die of novel sports product
CN206561531U (en) * 2017-03-13 2017-10-17 东莞市胜辉模具有限公司 A kind of mould for being used to produce silica gel massage bar
CN208375716U (en) * 2018-04-25 2019-01-15 成都托克密封件有限责任公司 A kind of rubber sleeve for packer molding die of pre- indent
CN211221645U (en) * 2019-11-16 2020-08-11 昆山一正精密模具工业有限公司 Prevent bending fracture's mould core
CN111559037A (en) * 2020-05-31 2020-08-21 西南电子技术研究所（中国电子科技集团公司第十研究所） Sealing ring forming device

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艾琦等: "自动脱模半模式橡胶堆模具设计", 《世界橡胶工业》 *

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