CN107756720B - Four-plate die for vacuum arc-extinguishing chamber encapsulation - Google Patents
Four-plate die for vacuum arc-extinguishing chamber encapsulation Download PDFInfo
- Publication number
- CN107756720B CN107756720B CN201610692924.1A CN201610692924A CN107756720B CN 107756720 B CN107756720 B CN 107756720B CN 201610692924 A CN201610692924 A CN 201610692924A CN 107756720 B CN107756720 B CN 107756720B
- Authority
- CN
- China
- Prior art keywords
- plate
- die plate
- upper die
- ejector pin
- die
- 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.)
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Links
- 238000005538 encapsulation Methods 0.000 title description 12
- 238000009413 insulation Methods 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004944 Liquid Silicone Rubber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000003068 static effect Effects 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
- 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
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
-
- 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
- B29C45/2602—Mould construction elements
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives 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
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
- B29C2045/334—Mountings or guides therefor; Drives therefor several transversely movable mould parts driven by a single drive means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacture Of Switches (AREA)
Abstract
The invention discloses a four-plate die for encapsulating a vacuum arc-extinguishing chamber, which comprises a first upper die plate, a second upper die plate, a first lower die plate and a second lower die plate, wherein the first upper die plate, the second upper die plate, the first lower die plate and the second lower die plate are sequentially overlapped from top to bottom to form a cavity for accommodating the vacuum arc-extinguishing chamber; an upper die top plate is arranged above the first upper die plate and is fixedly connected with the first upper die plate; and a lower die bottom plate is arranged below the second lower die plate and is fixedly connected with the second lower die plate. By adopting the four-plate die for encapsulating the vacuum arc-extinguishing chamber, the adsorption force of the cavity to the vacuum arc-extinguishing chamber can be reduced during demolding, and the quality of the encapsulated vacuum arc-extinguishing chamber is ensured.
Description
Technical Field
The invention relates to a vacuum arc-extinguishing chamber, in particular to a four-plate die for encapsulating the vacuum arc-extinguishing chamber.
Background
The encapsulation injection process of the vacuum arc-extinguishing chamber is that liquid silicone rubber is sucked into a screw rod of a vertical injection molding machine and injected into an encapsulation mold cavity through the screw rod, the liquid silicone rubber is coated on the vacuum arc-extinguishing chamber in the mold cavity, and finally the vacuum arc-extinguishing chamber after molding, namely after encapsulation, is demoulded and taken out.
Chinese patent CN101567275A discloses a manufacturing mould of once outsourcing vacuum interrupter, this mould adopts two-plate mould structures, after the encapsulation of vacuum interrupter is accomplished to adopt this kind of mould, in the die sinking in-process, the adsorption affinity of mould die cavity to silicone rubber, when leading to the die sinking, vacuum interrupter product after the encapsulation can follow the movable mould and walk, because the movable end contact and the stationary end contact at vacuum interrupter both ends are fixed by first die head and second die head respectively, vacuum interrupter can receive two opposite forces like this, consequently lead to vacuum interrupter can take place movable end or stationary end contact crooked, movable end or stationary end cover problem such as sunken, the quality of vacuum interrupter after the encapsulation has seriously influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a four-plate die for encapsulating the vacuum arc-extinguishing chamber, which ensures the quality of the encapsulated vacuum arc-extinguishing chamber.
In order to achieve the purpose, the four-plate die for encapsulating the vacuum arc-extinguishing chamber comprises a first upper die plate, a second upper die plate, a first lower die plate and a second lower die plate, wherein the first upper die plate, the second upper die plate, the first lower die plate and the second lower die plate are sequentially overlapped from top to bottom to form a cavity for accommodating the vacuum arc-extinguishing chamber; an upper die top plate is arranged above the first upper die plate and is fixedly connected with the first upper die plate; and a lower die bottom plate is arranged below the second lower die plate and is fixedly connected with the second lower die plate.
Preferably, the first upper template is provided with a through hole, the second upper template is provided with a limit screw, the limit screw penetrates through the through hole, the head of the limit screw is in threaded connection with the second upper template, and a gap is reserved between the tail of the limit screw and the first upper template.
Preferably, the gap is 10mm.
Preferably, the second upper die plate and the second lower die plate are connected by a detachable connecting piece.
Preferably, a first ejector pin plate and a second ejector pin plate are arranged in the lower die bottom plate, a first ejector pin is arranged on the first ejector pin plate, the first ejector pin penetrates through the second lower die plate, and the end part of the first ejector pin can be abutted with a vacuum arc extinguishing chamber in the die cavity; the second ejector pin plate is provided with a second ejector pin, the second ejector pin penetrates through the second lower die plate, and the end part of the second ejector pin is fixedly connected with the first lower die plate.
Preferably, a limiting block for limiting the moving distance of the second ejector pin plate is arranged on the lower die bottom plate.
Preferably, an upper die heat insulation plate is arranged above the upper die top plate.
Preferably, a lower die heat insulation plate is arranged between the second lower die plate and the lower die bottom plate.
By adopting the four-plate die for encapsulation of the vacuum arc-extinguishing chamber, the adsorption force of the cavity to the vacuum arc-extinguishing chamber can be reduced during demolding, the vacuum arc-extinguishing chamber is prevented from bending deformation of the moving end contact and the fixed end contact caused by movement of the vacuum arc-extinguishing chamber along with the die during demolding, and the quality of the encapsulated vacuum arc-extinguishing chamber is ensured.
Drawings
FIG. 1 is a schematic diagram of a four-plate mold for encapsulating a vacuum interrupter;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of region B of FIG. 1;
FIG. 4 is a schematic view showing the separation of a first upper plate from a second upper plate of the four-plate mold for encapsulating a vacuum interrupter of FIG. 1;
FIG. 5 is a schematic view showing the separation of the second upper plate from the first lower plate of the four-plate mold for encapsulating a vacuum interrupter of FIG. 4;
FIG. 6 is a schematic view showing the separation of a first lower plate from a second lower plate of the four-plate mold for encapsulating a vacuum interrupter of FIG. 5;
Fig. 7 is a C-C cross-sectional view of fig. 6.
Detailed Description
Referring to fig. 1 and 2, the four-plate mold for encapsulating a vacuum arc-extinguishing chamber of the present invention includes a first upper plate 3, a second upper plate 4, a first lower plate 5 and a second lower plate 6, wherein the first upper plate 3, the second upper plate 4, the first lower plate 5 and the second lower plate 6 are sequentially stacked from top to bottom to form a cavity for accommodating the vacuum arc-extinguishing chamber 100.
An upper die top plate 2 is arranged above the first upper die plate 3, the upper die top plate 2 is fixedly connected with the first upper die plate 3, and the fixed connection mode of the upper die top plate 2 can be bolt connection. An upper die heat insulation plate 1 is arranged above the upper die top plate 2 and used for heat insulation of the die. Of course, the upper mold insulating plate 1 may be disposed between the first upper mold plate 3 and the upper mold top plate 2.
The lower die bottom plate 8 is arranged below the second lower die plate 6, the lower die bottom plate 8 is fixedly connected with the second lower die plate 6, and the fixed connection mode can be bolt connection. A lower die heat insulation plate 7 is arranged between the second lower die plate 6 and the lower die bottom plate 8 and is used for heat insulation of the die.
The first upper template 3 is provided with a through hole 31, the second upper template 4 is provided with a limit screw 9, the limit screw 9 penetrates through the through hole 31, the head of the limit screw 9 is in threaded connection with the second upper template 4, and a gap L is reserved between the tail 91 of the limit screw and the first upper template 3. When the upper die top plate 2 drives the first upper die plate 3 to move upwards, as a gap L is reserved between the tail 91 of the limit screw 9 and the first upper die plate 3, the second upper die plate 4 cannot move upwards along with the first upper die plate 3 when the first upper die plate 3 starts to move upwards, and the second upper die plate 4 cannot move upwards along with the first upper die plate 3 until the tail 91 of the limit screw 9 contacts with the second upper die plate 4, and at this time, the disengaging distance between the first upper die plate 3 and the second upper die plate 4 is determined by the size of the gap L reserved between the tail 91 of the limit screw 9 and the first upper die plate 3. Typically the size of the gap may be 10mm, which can be adjusted by rotating the limit screw 9.
The second upper template 4 and the second lower template 6 are connected through a detachable connecting piece 10, the detachable connecting piece 10 can be connected in a conventional detachable mechanical connection mode, and preferably, a clamping connection mode can be adopted, and when the second upper template 4 is driven to move upwards by external force, the detachable connecting piece 10 can be disconnected when the second lower template 6 is kept still.
The lower die bottom plate 8 is provided with a first ejector pin plate 11 and a second ejector pin plate 12, the first ejector pin plate 11 is provided with a first ejector pin 13, the first ejector pin 13 penetrates through the second lower die plate 6, the end of the first ejector pin 13 can be abutted against the vacuum arc-extinguishing chamber 100 in the die cavity, the state that the first ejector pin 13 is abutted against the movable end and the static end fixing mechanism of the vacuum arc-extinguishing chamber 100 is shown in fig. 2, of course, the first ejector pin 13 can also be abutted against other parts of the vacuum arc-extinguishing chamber 100, the first ejector pin 13 is used for demolding of the vacuum arc-extinguishing chamber 100 after encapsulation, and when the first ejector pin 13 moves upwards along with the first ejector pin plate 11, the vacuum arc-extinguishing chamber 100 can be pushed to move upwards and separate from the first lower die plate 5. The second ejector pin plate 12 is provided with a second ejector pin 14, the second ejector pin 14 penetrates through the second lower die plate 6, the end portion of the second ejector pin 14 is fixedly connected with the first lower die plate 5, and when the second ejector pin plate 12 moves upwards, the first lower die plate 5 can be driven to move upwards, so that the second ejector pin is separated from the second lower die plate 6.
When the four-plate die for encapsulating the vacuum arc-extinguishing chamber is used for demolding after the encapsulation of the vacuum arc-extinguishing chamber is finished, the upper die top plate 2 drives the first upper die plate 3 to move upwards, and as a gap L is reserved between the tail part 91 of the limit screw 9 and the first upper die plate 3, the first upper die plate 3 and the second upper die plate 4 are firstly separated, and the state is shown in fig. 4; when the tail 91 of the limit screw 9 contacts with the first upper template 3, the second upper template 4 is driven to move upwards along with the first upper template 3, the detachable connecting piece 10 is opened, and the second upper template 4 and the first lower template 5 are detached, as shown in a state of fig. 5; next, the first ejector pin plate 11 and the second ejector pin plate 12 synchronously move upwards, and the second ejector pin 14 drives the first lower template 5 to move upwards so as to separate the first lower template 5 from the second lower template 6; finally, the second ejector plate 12 stops moving, the first ejector plate 11 continues to move upwards, and the first ejector 13 ejects the vacuum interrupter 100 from the first lower die plate 5, so that the demolding is completed, as shown in fig. 6.
The second ejector plate 12 moves upwards for a distance to stop the first lower die plate 5 and the second lower die plate 6 after being separated, so that a limit block (not shown) may be provided on the lower die bottom plate 8 to limit the moving distance of the second ejector plate 12, and typically the moving distance of the second ejector plate 12 is set to be 10mm.
By adopting the method for demolding, the four templates are separated respectively, so that the adsorption force of the mold cavity to the vacuum arc extinguishing chamber after encapsulation can be effectively weakened.
The above detailed description is only exemplary embodiments of the present invention and should not be taken as limiting the invention, the scope of which is defined by the appended claims. Various modifications and equivalent arrangements of parts may be made by those skilled in the art, which modifications and equivalents are intended to fall within the spirit and scope of the present invention.
Claims (5)
1. The four-plate die for encapsulating the vacuum arc-extinguishing chamber is characterized by comprising a first upper die plate, a second upper die plate, a first lower die plate and a second lower die plate, wherein the first upper die plate, the second upper die plate, the first lower die plate and the second lower die plate are sequentially overlapped from top to bottom to form a cavity for accommodating the vacuum arc-extinguishing chamber; an upper die top plate is arranged above the first upper die plate and is fixedly connected with the first upper die plate; a lower die bottom plate is arranged below the second lower die plate and is fixedly connected with the second lower die plate;
the second upper template and the second lower template are connected through a detachable connecting piece;
an upper die heat insulation plate is arranged above the upper die top plate;
A first ejector pin plate and a second ejector pin plate are arranged in the lower die bottom plate, a first ejector pin is arranged on the first ejector pin plate, the first ejector pin penetrates through the second lower die plate, and the end part of the first ejector pin can be abutted with a vacuum arc-extinguishing chamber in the die cavity; the second ejector pin plate is provided with a second ejector pin, the second ejector pin penetrates through the second lower die plate, and the end part of the second ejector pin is fixedly connected with the first lower die plate.
2. The four-plate die for encapsulating the vacuum arc-extinguishing chamber according to claim 1, wherein the first upper die plate is provided with a through hole, the second upper die plate is provided with a limit screw, the limit screw penetrates through the through hole, the head of the limit screw is in threaded connection with the second upper die plate, and a gap is reserved between the tail of the limit screw and the first upper die plate.
3. The four-plate die for encapsulating a vacuum interrupter as claimed in claim 2, wherein the gap is 10mm.
4. The four-plate mold for encapsulating vacuum arc-extinguishing chambers according to claim 1, wherein a limiting block for limiting the moving distance of the second ejector plate is arranged on the lower mold bottom plate.
5. The four-plate mold for encapsulating a vacuum interrupter as claimed in claim 1, wherein a lower mold heat insulating plate is provided between the second lower mold plate and the lower mold bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692924.1A CN107756720B (en) | 2016-08-18 | 2016-08-18 | Four-plate die for vacuum arc-extinguishing chamber encapsulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692924.1A CN107756720B (en) | 2016-08-18 | 2016-08-18 | Four-plate die for vacuum arc-extinguishing chamber encapsulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107756720A CN107756720A (en) | 2018-03-06 |
| CN107756720B true CN107756720B (en) | 2024-06-21 |
Family
ID=61263318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610692924.1A Active CN107756720B (en) | 2016-08-18 | 2016-08-18 | Four-plate die for vacuum arc-extinguishing chamber encapsulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107756720B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109228193A (en) * | 2018-11-09 | 2019-01-18 | 珠海格力精密模具有限公司 | Mold ejection device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347975A (en) * | 2007-07-16 | 2009-01-21 | 汉达精密电子(昆山)有限公司 | Four-plate mold structure |
| CN205889714U (en) * | 2016-08-18 | 2017-01-18 | 上海雷博司电气股份有限公司 | Vacuum interrupter rubber coating is with four matrix moulds |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR900005723Y1 (en) * | 1987-09-03 | 1990-06-28 | 주식회사 금성사 | Multi-stage injection articles ejecting device in injection mould |
| KR940008309Y1 (en) * | 1991-12-31 | 1994-12-12 | 현대전자산업 주식회사 | Boss double ejection device of injection molding mold |
| CN101567275B (en) * | 2008-04-25 | 2013-02-13 | 厦门华电开关有限公司 | Method and mould for producing first outer-packing vacuum arc extinguishing chamber of phase post of circuit breaker element |
| CN103029236B (en) * | 2011-10-10 | 2016-08-03 | 汉达精密电子(昆山)有限公司 | Four-plate mould structure |
| CN104416832B (en) * | 2013-08-29 | 2017-05-10 | 上海雷博司电气股份有限公司 | Mould for manufacturing vacuum arc-extinguishing chamber seal by encapsulating compound injection process |
| CN203680697U (en) * | 2014-01-24 | 2014-07-02 | 苏州市盛基硅橡胶模具有限公司 | Silicone rubber mold |
| CN104859109A (en) * | 2015-06-03 | 2015-08-26 | 贵州贵航汽车零部件股份有限公司华阳电器公司 | Lock pin type secondary ejection mechanism |
-
2016
- 2016-08-18 CN CN201610692924.1A patent/CN107756720B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347975A (en) * | 2007-07-16 | 2009-01-21 | 汉达精密电子(昆山)有限公司 | Four-plate mold structure |
| CN205889714U (en) * | 2016-08-18 | 2017-01-18 | 上海雷博司电气股份有限公司 | Vacuum interrupter rubber coating is with four matrix moulds |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107756720A (en) | 2018-03-06 |
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