CN105751468A - Auxiliary switch pressing plate formed by thermoplastic plastics and manufacturing process of auxiliary switch pressing plate - Google Patents
Auxiliary switch pressing plate formed by thermoplastic plastics and manufacturing process of auxiliary switch pressing plate Download PDFInfo
- Publication number
- CN105751468A CN105751468A CN201610230138.XA CN201610230138A CN105751468A CN 105751468 A CN105751468 A CN 105751468A CN 201610230138 A CN201610230138 A CN 201610230138A CN 105751468 A CN105751468 A CN 105751468A
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- auxiliary switch
- switch pressing
- thermoplastic
- processing technology
- 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
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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
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
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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
- B29C45/14—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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- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Switches (AREA)
Abstract
The invention relates to a manufacturing process of an auxiliary switch pressing plate formed by thermoplastic plastics.The manufacturing process includes: setting a die of the auxiliary switch pressing plate, and manufacturing the auxiliary switch pressing plate by injecting the thermoplastic plastics through pressure.The manufacturing process is capable of reducing manufacturing cycle and lowering cost and is good in environment protection performance.
Description
Technical field
The present invention relates to power switchgear, the processing technology of especially a kind of auxiliary switch pressing plate and pressing plate.
Background technology
Currently, known auxiliary switch is made up of movable contact spring, static contact, the frame of insulation, rotating shaft, bearing and end pressing plate, what be operated by rotating shaft rotates the break-make realizing switching each loop, is widely used in the use of the operating mechanism combined floodgate of high-tension switch gear, separating brake, interlocking and signal control.Wherein, the commonly used die cast metal manufacture of end pressing plate that auxiliary switch two ends are arranged, but die casting is owing to being subject to the restriction of manufacturing process, and cast shape is simple, high material consumption；The accuracy of manufacture is relatively low, also needs machining, causes that manufacturing cycle length, cost are high, is unfavorable for improving efficiency and reducing cost.And casting processing technique is obtain liquid metal by high temperature, then injects in the die cavity that molding sand makes, and its manufacturing process energy consumption is big, and with dust pollution, does not meet the low-carbon environment-friendly policy of country.
Summary of the invention
In order to overcome the deficiency that the fabrication cycle length of existing auxiliary switch pressing plate, cost are high, the feature of environmental protection is poor, the present invention provides a kind of and reduces fabrication cycle, the processing technology reducing the auxiliary switch pressing plate of the good employing thermoplastic of cost, the feature of environmental protection and pressing plate.
The technical solution adopted for the present invention to solve the technical problems is:
The processing technology of a kind of auxiliary switch pressing plate adopting thermoplastic, arranges the mould of auxiliary switch pressing plate, makes auxiliary switch pressing plate by the method for pressure injection thermoplastic.
Further, injection pressure is 40～90bar, and injection temperature interval is 220～300 DEG C.
Further, in the mold, the embedding nut of mounting hole site placement location of pressing plate.
Further, in the mold, the axially arranged die cavity for forming U-shaped ribbed three dimensional structure of embedding nut.
In the mold, the pressing plate installed surface at embedding nut place is provided with the die cavity for forming alignment pin.
A kind of auxiliary switch pressing plate adopting thermoplastic, described auxiliary switch pressing plate is the pressing plate of injection thermoplastic plastics shaping.
Further, described pressing plate is provided with and the embedding nut installing screw fit.
Further, the axially arranged U-shaped ribbed three dimensional structure for making each position of working of plastics have identical or approximate wall thickness dimension of described embedding nut.
The pressing plate installed surface at described embedding nut place is provided with alignment pin.
The installed surface of described auxiliary switch pressing plate is square, and two embedding nuts are positioned on a square diagonal angle, and two alignment pins are positioned on another square diagonal angle.
The technology of the present invention is contemplated that: adopt injection thermoplastic to manufacture end pressing plate.Owing to pressure injection-moulded method has, heating-up temperature is low, shaping speed is fast, formed precision is high, and the feature of no dust pollution, the method for contrast die cast metal, has the advantage of high efficiency, low cost and low-carbon environment-friendly.
Thermoplastic strength and stiffness, lower than the metal casting of prior art, are provided with embedding nut in the installing hole of pressing plate, to improve female thread intensity, when being assembled into auxiliary switch, it is ensured that have reliable connection with installing screw.
Axially it is provided with U-shaped ribbed three dimensional structure at described embedding nut, while improving pressing plate rigidity, makes each position of working of plastics have approximate wall thickness dimension, be conducive to improving moulding Forming Quality.
Being accurately positioned when installing auxiliary switch for the convenience of the user, and prevent operation switch shaft auxiliary switch from axially rotating, pressing plate is provided with alignment pin, embeds in the pre-manufactured hole of mounting bracket during for installing.
Beneficial effects of the present invention is mainly manifested in: minimizing fabrication cycle, reduction cost, the feature of environmental protection are good.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the auxiliary switch pressing plate adopting thermoplastic.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the B-B profile of Fig. 1.
Fig. 4 is the axonometric chart of Fig. 1.
Fig. 5 is the schematic diagram of auxiliary switch.
Fig. 6 is the A-A profile of Fig. 5.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1～Fig. 6, the processing technology of a kind of auxiliary switch pressing plate adopting thermoplastic, the mould of auxiliary switch pressing plate is set, makes auxiliary switch pressing plate 1 by the method for pressure injection thermoplastic.
Further, injection pressure is 40～90bar, and injection temperature interval is 220～300 DEG C.
Further, in the mold, the embedding nut 4 of the mounting hole site placement location of pressing plate.
Further, in the mold, the axially arranged die cavity for forming U-shaped ribbed three dimensional structure 2 of embedding nut 4.
In the mold, the pressing plate installed surface at embedding nut 4 place is provided with the die cavity for forming alignment pin 8.
A kind of auxiliary switch pressing plate adopting thermoplastic, described auxiliary switch pressing plate 1 is the pressing plate of injection thermoplastic plastics shaping.
Further, described pressing plate is provided with and installs the embedding nut 4 that screw 6 coordinates.
Further, the axially arranged U-shaped ribbed three dimensional structure 2 for making each position of working of plastics have identical or approximate wall thickness dimension of described embedding nut 4.
The pressing plate installed surface at described embedding nut place is provided with alignment pin 3.
The installed surface of described auxiliary switch pressing plate is square, and two embedding nuts 4 are positioned on a square diagonal angle, and two alignment pins 3 are positioned on another square diagonal angle.
In the present embodiment, owing to pressure injection-moulded method has, heating-up temperature is low, shaping speed is fast, formed precision is high, and the feature of no dust pollution, the method for contrast die cast metal, has the advantage of high efficiency, low cost and low-carbon environment-friendly.
Owing at least one auxiliary switch pressing plate 1 is for fixing auxiliary switch part and mounting bracket 5, and thermoplastic strength and stiffness are lower than the metal casting of prior art, embedding nut 4 it is provided with in the installing hole of auxiliary switch pressing plate 1, to improve female thread intensity, it is ensured that have reliable connection with installing screw 6；
For ensureing the intensity of threadeding installing screw 6 with embedding nut 4, embedding nut 4 should have enough reaches, simultaneously, consider rigid requirements, auxiliary switch pressing plate 1 is along the axially arranged U-shaped ribbed three dimensional structure 2 of embedding nut 4, while improving pressing plate rigidity, make each position of working of plastics have approximate wall thickness dimension, be conducive to improving moulding Forming Quality.
Being accurately positioned when installing auxiliary switch for the convenience of the user, and prevent operation switch shaft 7 auxiliary switch from axially rotating, auxiliary switch pressing plate 1 is provided with alignment pin 3, embeds in the pre-manufactured hole of mounting bracket 5 during for installing.
Claims (10)
1. the processing technology of the auxiliary switch pressing plate adopting thermoplastic, it is characterised in that: the mould of auxiliary switch pressing plate is set, makes auxiliary switch pressing plate by the method for pressure injection thermoplastic.
2. the processing technology of the auxiliary switch pressing plate adopting thermoplastic as claimed in claim 1, it is characterised in that: injection pressure is 40～90bar, and injection temperature interval is 220～300 DEG C.
3. the processing technology of the auxiliary switch pressing plate adopting thermoplastic as claimed in claim 1 or 2, it is characterised in that: in the mold, the embedding nut of mounting hole site placement location of pressing plate.
4. the processing technology of the auxiliary switch pressing plate adopting thermoplastic as claimed in claim 1 or 2, it is characterised in that: in the mold, the axially arranged die cavity for forming U-shaped ribbed three dimensional structure of embedding nut.
5. the processing technology of the auxiliary switch pressing plate adopting thermoplastic as claimed in claim 1 or 2, it is characterised in that: in the mold, the pressing plate installed surface at embedding nut place is provided with the die cavity for forming alignment pin.
6. the pressing plate formed by the processing technology of the auxiliary switch pressing plate adopting thermoplastic as claimed in claim 1, it is characterised in that: described auxiliary switch pressing plate is the pressing plate of injection thermoplastic plastics shaping.
7. pressing plate as claimed in claim 6, it is characterised in that: described pressing plate is provided with and the embedding nut installing screw fit.
8. pressing plate as claimed in claim 7, it is characterised in that: the axially arranged U-shaped ribbed three dimensional structure for making each position of working of plastics have identical or approximate wall thickness dimension of described embedding nut.
9. the pressing plate as described in one of claim 6～8, it is characterised in that: the pressing plate installed surface at described embedding nut place is provided with alignment pin.
10. pressing plate as claimed in claim 9, it is characterised in that: the installed surface of described auxiliary switch pressing plate is square, and two embedding nuts are positioned on a square diagonal angle, and two alignment pins are positioned on another square diagonal angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610230138.XA CN105751468A (en) | 2016-04-13 | 2016-04-13 | Auxiliary switch pressing plate formed by thermoplastic plastics and manufacturing process of auxiliary switch pressing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610230138.XA CN105751468A (en) | 2016-04-13 | 2016-04-13 | Auxiliary switch pressing plate formed by thermoplastic plastics and manufacturing process of auxiliary switch pressing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105751468A true CN105751468A (en) | 2016-07-13 |
Family
ID=56334968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610230138.XA Pending CN105751468A (en) | 2016-04-13 | 2016-04-13 | Auxiliary switch pressing plate formed by thermoplastic plastics and manufacturing process of auxiliary switch pressing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105751468A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201570419U (en) * | 2009-12-03 | 2010-09-01 | 刘坚钢 | Auxiliary switch for high pressure switch |
| CN102683092A (en) * | 2011-03-09 | 2012-09-19 | 刘坚钢 | High-current auxiliary switch of high-voltage switch |
| CN205705173U (en) * | 2016-04-13 | 2016-11-23 | 宁波耀华电气科技有限责任公司 | Use the auxiliary switch pressing plate of thermoplastic |
-
2016
- 2016-04-13 CN CN201610230138.XA patent/CN105751468A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201570419U (en) * | 2009-12-03 | 2010-09-01 | 刘坚钢 | Auxiliary switch for high pressure switch |
| CN102683092A (en) * | 2011-03-09 | 2012-09-19 | 刘坚钢 | High-current auxiliary switch of high-voltage switch |
| CN205705173U (en) * | 2016-04-13 | 2016-11-23 | 宁波耀华电气科技有限责任公司 | Use the auxiliary switch pressing plate of thermoplastic |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |