CN114407285A - Flange plate forming die, injection molding method thereof and flange plate - Google Patents
Flange plate forming die, injection molding method thereof and flange plate Download PDFInfo
- Publication number
- CN114407285A CN114407285A CN202111609087.9A CN202111609087A CN114407285A CN 114407285 A CN114407285 A CN 114407285A CN 202111609087 A CN202111609087 A CN 202111609087A CN 114407285 A CN114407285 A CN 114407285A
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- Prior art keywords
- penetration
- flange plate
- die body
- closed die
- annular
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Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 21
- 230000035515 penetration Effects 0.000 claims abstract description 68
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract 2
- 230000000149 penetrating effect Effects 0.000 claims description 15
- 238000005253 cladding Methods 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000012778 molding material Substances 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/033—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
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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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/50—Flanged connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a flange plate forming die and an injection molding method thereof and a flange plate, which changes the traditional die structure, realizes the suspension structure of an annular steel ring by a movable penetration sleeve and isolating strips, respectively sleeves the penetration of an original lower penetration column, uniformly and fixedly installs a plurality of isolating strips at the outer side of the periphery of the movable penetration sleeve, and the isolating strips form a conical structure with a small upper part and a large lower part, and a communicating bonding groove is arranged between adjacent isolating strips, so that the annular steel ring is isolated and abutted by the isolating strips when sleeved on the movable penetration sleeve, a gap is reserved between the lower end of the annular steel ring and the lower annular groove of a lower closed die body, and the communicating bonding groove between the adjacent isolating strips carries out material feeding, thus the upper end, the lower end and the periphery of the annular steel ring are both filled with injection molding materials, and the structural strength of the flange plate is improved, and the maintenance cost of the original mould is reduced.
Description
Technical Field
The invention relates to a flange plate forming die, an injection molding method thereof and a flange plate.
Background
The flange plate is also called flange plate or flange, and the flange plate is a part for connecting the shafts and is used for connecting pipe ends; the existing flange plate is generally formed by injection molding, the flange plate needs to arrange an annular steel ring in the flange plate sometimes, so that the structural strength of the flange plate is greatly enhanced, but the existing flange plate is used for injection molding, in order to wrap the annular steel ring in the flange plate, generally, an annular gap is reserved between the bottom of the annular steel ring and the upper end of a lower closed die body, so that a high polymer material can be filled and wrapped, in the prior art, a plurality of uniformly distributed jacking columns are generally arranged at the bottom of the lower closed die body and are jacked around the lower end of the annular steel ring through the jacking columns, so that a gap is reserved between the annular steel ring and the upper end of the lower closed die body for injection molding and filling, after injection molding is completed, a plurality of slots are reserved on the disc surface of the flange plate, so that the structural strength of the disc surface of the flange plate is influenced, the flange plate is easy to crack, in addition, the original mold has a complex structure, The maintenance cost is high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: the flange plate forming die and the injection molding method thereof and the flange plate are good in structural strength and free of holes in the plate surface.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a flange plate forming die comprises an upper connecting seat, a lower connecting seat, an upper forming mechanism and a lower forming mechanism; an upper forming mechanism is arranged in the middle of the lower side of the upper connecting seat; a lower forming mechanism is arranged in the middle of the upper end of the lower connecting seat; the upper forming mechanism comprises an upper closed die body and an upper cross-connecting column; an upper closed die body is arranged in the middle of the lower end of the upper connecting seat; an upper annular groove is formed in the periphery of the lower end of the upper closed die body; a plurality of upper cross-connecting columns are uniformly arranged in the upper annular groove; the lower forming mechanism comprises a lower closed die body, a lower penetrating column, a movable penetrating sleeve and a separation strip; a lower closed die body is arranged in the middle of the upper end of the lower connecting seat; a lower annular groove is formed around the upper end of the lower closed die body; a plurality of lower penetrating columns are uniformly arranged in the lower annular groove; the lower penetration column is sleeved with a movable penetration sleeve respectively; a plurality of isolating strips are uniformly and fixedly arranged on the outer side of the periphery of the movable penetration sleeve, the isolating strips form a conical structure with a small upper part and a large lower part, and a communicating bonding groove is formed between every two adjacent isolating strips; the lower end surface of the upper closed die body is mounted on the upper end surface of the lower closed die body in a fitting manner; the lower ends of the upper penetration columns are correspondingly attached to and abutted against the upper ends of the lower penetration columns respectively.
Furthermore, the middle of the upper connecting seat and the middle of the upper closed die body are provided with communicated flow guide channels.
Furthermore, a plurality of drainage grooves are formed in the periphery of the middle of the lower closed die body; the drainage groove extends from the middle of the lower closed die body to the inner side edge of the lower annular groove; the flow guide channel is positioned above the inner ends of the plurality of drainage grooves.
Furthermore, a plurality of drainage grooves around the middle of the lower closed die body are of a cross structure.
Furthermore, an upper annular convex edge is arranged on the periphery of the upper end of the upper penetrating column; and a lower annular convex edge is arranged around the lower end of the movable penetration sleeve.
Furthermore, six to eight isolating bars are uniformly and fixedly arranged on the outer sides of the periphery of the movable penetration sleeve.
Further, the number of the upper penetrating columns and the lower penetrating columns is four to ten.
An injection molding method of a flange plate forming mold comprises the following steps: the movable penetration sleeve is respectively sleeved on the lower penetration column, then an annular steel ring is taken, penetration holes are formed in the periphery of the annular steel ring, the annular steel ring penetrates through the penetration holes and is connected to the isolation strips on the periphery outer side of the movable penetration sleeve in a penetrating mode, a plurality of isolation strips on the periphery outer side of the movable penetration sleeve are enclosed into a conical structure with a small upper part and a large lower part, so that a gap is reserved between the lower end of the annular steel ring and the lower annular groove of the lower closed die body, the upper closed die body is covered and attached to the upper end face of the lower closed die body, the upper annular groove is aligned and attached to the lower annular groove, the upper penetration column is abutted to the lower penetration column, the upper connecting seat and the lower connecting seat are connected in a positioning mode to achieve mold sealing, and finally injection molding is conducted from the upper end of the upper connecting seat, so that the gap parts of the upper annular groove and the lower annular groove are filled, cooling and shaping are achieved, and injection molding is completed.
A flange plate comprises an external cladding ring body and an annular steel ring; the annular steel ring is arranged on the periphery of the inner part of the outer cladding ring body; the external cladding ring body is made of a high polymer material; a plurality of cross-connecting channels are uniformly formed in the external cladding ring body; a plurality of through holes are uniformly formed in the annular steel ring; the cross-connecting channels correspond to the cross-connecting holes one by one respectively.
Furthermore, step ring grooves are respectively arranged at the upper end and the lower end of the cross-connecting channel.
The invention has the following beneficial effects:
the invention changes the traditional mould structure, realizes the suspension structure of the ring-shaped steel ring by the movable penetration sleeve and the isolating strips, respectively sleeves the movable penetration sleeve on the penetration of the original lower penetration column, evenly and fixedly installs a plurality of isolating strips on the outer side of the periphery of the movable penetration sleeve, and the isolating strips enclose a conical structure with a small upper part and a big lower part, and a communicating bonding groove is arranged between the adjacent isolating strips, so that the ring-shaped steel ring is isolated and abutted by the isolating strips when sleeved on the movable penetration sleeve, a gap is left between the lower end of the ring-shaped steel ring and the lower annular groove of the lower closed mould body, and the communicating bonding groove between the adjacent isolating strips carries out feeding, thus the upper end, the lower end and the periphery of the ring-shaped steel ring are filled with injection molding materials, no groove is arranged on the flange surface, the structural strength of the flange plate is improved, and the maintenance cost of the original mould is reduced, the invention has the advantages of structural design and low cost.
Drawings
Fig. 1 is a schematic structural view of a flange plate forming die of the present invention.
FIG. 2 is a schematic diagram of the separated structure of FIG. 1 according to the present invention.
Fig. 3 is a partially enlarged structural view of fig. 1 according to the present invention.
Fig. 4 is a partially enlarged structural view of fig. 3 according to the present invention.
FIG. 5 is a schematic top view of the lower piercing post, the movable piercing sleeve, the spacer and the annular steel ring of the present invention.
FIG. 6 is a schematic top view of the lower forming mechanism of the present invention.
Fig. 7 is a schematic structural view of the flange plate of the present invention.
FIG. 8 is a schematic structural view of the ring steel ring of the present invention.
Fig. 9 is a schematic longitudinal sectional structure of fig. 7 according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 9, a flange plate forming mold includes an upper connecting seat 2, a lower connecting seat 1, an upper forming mechanism 4, and a lower forming mechanism 3; an upper forming mechanism 4 is arranged in the middle of the lower side of the upper connecting seat 2; a lower forming mechanism 3 is arranged in the middle of the upper end of the lower connecting seat 1; the upper forming mechanism 4 comprises an upper closed die body 41 and an upper cross-connecting column 42; an upper closed die body 41 is arranged in the middle of the lower end of the upper connecting seat 2; an upper annular groove 411 is formed around the lower end of the upper closed die body 41; a plurality of upper penetrating columns 42 are uniformly arranged in the upper annular groove 411; the lower forming mechanism 3 comprises a lower closed die body 31, a lower penetration column 32, a movable penetration sleeve 33 and a spacing bar 34; a lower closed die body 31 is arranged in the middle of the upper end of the lower connecting seat 1; a lower annular groove 311 is formed around the upper end of the lower closed die body 31; a plurality of lower penetration posts 32 are uniformly arranged in the lower annular groove 311; the lower penetration posts 32 are respectively sleeved with a movable penetration sleeve 33; a plurality of isolating bars 34 are uniformly and fixedly arranged on the outer side of the periphery of the movable penetration sleeve 33, the isolating bars 34 form a conical structure with a small upper part and a large lower part, and a communicating bonding groove 341 is formed between every two adjacent isolating bars 34; the lower end surface of the upper closed die body 41 is mounted on the upper end surface of the lower closed die body 31 in a fitting manner; the lower ends of the upper penetration posts 42 are respectively and correspondingly attached and abutted against the upper ends of the lower penetration posts 32. Furthermore, a flow guide channel 21 is arranged between the upper connecting seat 2 and the upper closed die body 41. Further, a plurality of drainage grooves 312 are formed in the periphery of the middle of the lower closed die body 31; the drainage grooves 312 extend from the middle of the lower closed die body 31 to the inner side edge of the lower annular groove 311; the flow guide channels 21 are located above the inner ends of the plurality of flow guide slots 312. Further, a plurality of drainage grooves 312 around the middle of the lower closed die body 31 are in a cross-shaped structure. Further, an upper annular convex edge 421 is arranged around the upper end of the upper penetrating column 42; the periphery of the lower end of the movable penetration sleeve 33 is provided with a lower annular convex edge 331. Furthermore, six to eight isolating bars 34 are uniformly and fixedly arranged on the outer sides of the periphery of the movable penetration sleeve 33. Further, the number of the upper and lower penetration posts 42 and 32 is four to ten.
As shown in fig. 1 to 9, an injection molding method of a flange plate forming mold includes the following steps: the movable penetration sleeve 33 is respectively sleeved on the lower penetration post 32, then an annular steel ring 5 is taken, the periphery of the annular steel ring 5 is provided with penetration holes 51, the annular steel ring 5 is penetrated and connected on the isolation strips 34 on the periphery outer side of the movable penetration sleeve 33 through the penetration holes 51, as a plurality of isolation strips 34 on the periphery outer side of the movable penetration sleeve 33 are enclosed into a conical structure with a small upper part and a large lower part, a gap is reserved between the lower end of the annular steel ring 5 and the lower annular groove 311 of the lower closed die body 31, then the upper closed die body 41 is covered and attached on the upper end surface of the lower closed die body 31, the upper annular groove 411 is aligned and attached with the lower annular groove 311, the upper penetration post 42 is abutted with the lower penetration post 32, the upper connecting seat 2 and the lower connecting seat 1 are positioned and connected to realize mold sealing, finally, injection molding is carried out from the upper end of the upper connecting seat 2, so that the gap part of the upper annular groove 411 and the lower annular groove 311 is filled, cooling and shaping to finish injection molding.
As shown in fig. 7 to 9, a flange plate comprises an outer cladding ring body 6 and an annular steel ring 5; the annular steel ring 5 is arranged on the periphery of the inner part of the outer cladding ring body 6; the external cladding ring body 6 is made of a high polymer material; a plurality of cross-connecting channels 61 are uniformly formed in the external cladding ring body 6; a plurality of through holes 51 are uniformly formed in the annular steel ring 5; the through channels 61 are in one-to-one correspondence with the through holes 51. Further, step ring grooves 62 are respectively formed at the upper end and the lower end of the penetration passage 61.
The invention changes the traditional mould structure, the suspension structure of the ring steel ring 5 is realized by the movable penetration sleeve 33 and the isolating bars 34, the penetration of the original lower penetration column 32 is respectively sleeved with the movable penetration sleeve 33, the outer sides of the periphery of the movable penetration sleeve 33 are uniformly and fixedly provided with the isolating bars 34, the isolating bars 34 form a conical structure with a small upper part and a big lower part, a communicating bonding groove 341 is arranged between the adjacent isolating bars 34, thus when the ring steel ring 5 is sleeved on the movable penetration sleeve 33, the lower end of the ring steel ring 33 is separated and abutted by the isolating bars 34, a gap is left between the lower end of the ring steel ring 33 and the lower ring groove 311 of the lower closed mould body 31, the communicating bonding groove 341 between the adjacent isolating bars 34 carries out feeding, thus the upper end, the lower end and the periphery of the ring steel ring 5 are both filled with injection molding materials, and no groove is arranged on the flange disc surface, the flange plate structure has the advantages that the structural strength of the flange plate is improved, the maintenance cost of the original mold is reduced, and the structure design and the cost are low.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A flange plate forming die is characterized by comprising an upper connecting seat, a lower connecting seat, an upper forming mechanism and a lower forming mechanism; an upper forming mechanism is arranged in the middle of the lower side of the upper connecting seat; a lower forming mechanism is arranged in the middle of the upper end of the lower connecting seat; the upper forming mechanism comprises an upper closed die body and an upper cross-connecting column; an upper closed die body is arranged in the middle of the lower end of the upper connecting seat; an upper annular groove is formed in the periphery of the lower end of the upper closed die body; a plurality of upper cross-connecting columns are uniformly arranged in the upper annular groove; the lower forming mechanism comprises a lower closed die body, a lower penetrating column, a movable penetrating sleeve and a separation strip; a lower closed die body is arranged in the middle of the upper end of the lower connecting seat; a lower annular groove is formed around the upper end of the lower closed die body; a plurality of lower penetrating columns are uniformly arranged in the lower annular groove; the lower penetration column is sleeved with a movable penetration sleeve respectively; a plurality of isolating strips are uniformly and fixedly arranged on the outer side of the periphery of the movable penetration sleeve, the isolating strips form a conical structure with a small upper part and a large lower part, and a communicating bonding groove is formed between every two adjacent isolating strips; the lower end surface of the upper closed die body is mounted on the upper end surface of the lower closed die body in a fitting manner; the lower ends of the upper penetration columns are correspondingly attached to and abutted against the upper ends of the lower penetration columns respectively.
2. The flange plate forming die of claim 1, wherein a flow guide passage is provided between the upper connecting seat and the upper closed die body.
3. The flange plate forming die of claim 2, wherein a plurality of drainage grooves are formed in the periphery of the middle of the lower closed die body; the drainage groove extends from the middle of the lower closed die body to the inner side edge of the lower annular groove; the flow guide channel is positioned above the inner ends of the plurality of drainage grooves.
4. The flange plate forming die of claim 3, wherein the plurality of drainage grooves around the middle of the lower closed die body are of a cross-shaped structure.
5. The flange plate forming die of claim 1, wherein an upper annular flange is provided around the upper end of the upper penetration post; and a lower annular convex edge is arranged around the lower end of the movable penetration sleeve.
6. The flange plate forming die of claim 1, wherein six to eight spacer bars are uniformly and fixedly mounted on the outer sides of the peripheries of the movable penetration sleeves; the number of the upper penetrating columns and the lower penetrating columns is four to ten.
7. An injection molding method for the flange plate forming mold according to claim 1, characterized by comprising the steps of: the movable penetration sleeve is respectively sleeved on the lower penetration column, then an annular steel ring is taken, penetration holes are formed in the periphery of the annular steel ring, the annular steel ring penetrates through the penetration holes and is connected to the isolation strips on the periphery outer side of the movable penetration sleeve in a penetrating mode, a plurality of isolation strips on the periphery outer side of the movable penetration sleeve are enclosed into a conical structure with a small upper part and a large lower part, so that a gap is reserved between the lower end of the annular steel ring and the lower annular groove of the lower closed die body, the upper closed die body is covered and attached to the upper end face of the lower closed die body, the upper annular groove is aligned and attached to the lower annular groove, the upper penetration column is abutted to the lower penetration column, the upper connecting seat and the lower connecting seat are connected in a positioning mode to achieve mold sealing, and finally injection molding is conducted from the upper end of the upper connecting seat, so that the gap parts of the upper annular groove and the lower annular groove are filled, cooling and shaping are achieved, and injection molding is completed.
8. A flange plate is characterized by comprising an external cladding ring body and an annular steel ring; the annular steel ring is arranged on the periphery of the inner part of the outer cladding ring body; a plurality of cross-connecting channels are uniformly formed in the external cladding ring body; a plurality of through holes are uniformly formed in the annular steel ring; the cross-connecting channels correspond to the cross-connecting holes one by one respectively.
9. The flange according to claim 8, wherein the upper and lower ends of the through passage are provided with stepped annular grooves, respectively.
10. The flange plate of claim 8, wherein the outer annular cover member is a polymeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111609087.9A CN114407285A (en) | 2021-12-27 | 2021-12-27 | Flange plate forming die, injection molding method thereof and flange plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111609087.9A CN114407285A (en) | 2021-12-27 | 2021-12-27 | Flange plate forming die, injection molding method thereof and flange plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114407285A true CN114407285A (en) | 2022-04-29 |
Family
ID=81269959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111609087.9A Pending CN114407285A (en) | 2021-12-27 | 2021-12-27 | Flange plate forming die, injection molding method thereof and flange plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114407285A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2844219A1 (en) * | 2002-09-09 | 2004-03-12 | Valeo Electronique Sys Liaison | Mold, for the encapsulation of circuit boards, is in two parts to shroud the workpiece with support rods against the pins through the holes into counter-clips, with conical rod ends |
| KR20040037655A (en) * | 2002-10-29 | 2004-05-07 | 변무원 | Flange for pipe and method apparatus for producing thereof |
| CN206780849U (en) * | 2017-01-13 | 2017-12-22 | 长春市鸿阳模具有限公司 | Ring flange injection moulding apparatus |
| KR20180064055A (en) * | 2016-12-05 | 2018-06-14 | 최준호 | Plastic Molding Flange |
| KR20190014832A (en) * | 2017-08-04 | 2019-02-13 | 최준호 | Fusion flange |
-
2021
- 2021-12-27 CN CN202111609087.9A patent/CN114407285A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2844219A1 (en) * | 2002-09-09 | 2004-03-12 | Valeo Electronique Sys Liaison | Mold, for the encapsulation of circuit boards, is in two parts to shroud the workpiece with support rods against the pins through the holes into counter-clips, with conical rod ends |
| KR20040037655A (en) * | 2002-10-29 | 2004-05-07 | 변무원 | Flange for pipe and method apparatus for producing thereof |
| KR20180064055A (en) * | 2016-12-05 | 2018-06-14 | 최준호 | Plastic Molding Flange |
| CN206780849U (en) * | 2017-01-13 | 2017-12-22 | 长春市鸿阳模具有限公司 | Ring flange injection moulding apparatus |
| KR20190014832A (en) * | 2017-08-04 | 2019-02-13 | 최준호 | Fusion flange |
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