CN2644139Y - Magnetic injection - Google Patents
Magnetic injection Download PDFInfo
- Publication number
- CN2644139Y CN2644139Y CN 03244576 CN03244576U CN2644139Y CN 2644139 Y CN2644139 Y CN 2644139Y CN 03244576 CN03244576 CN 03244576 CN 03244576 U CN03244576 U CN 03244576U CN 2644139 Y CN2644139 Y CN 2644139Y
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- magnetic
- injector
- mould
- solenoid
- 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.)
- Expired - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a magnetic field injection machine applicable for the injection shaping of anisotropy magnetic plastic or the magnetic rubber product, which is provided with a moveable electromagnetic coil(1) outside a draught rod(2), and the strong magnetic field is produced to holed magnetism charge tropism through controlling the current of the electromagnetic coil(1). The electromagnetic coil(1) consists of two windings, and an inserting plate(7) is arranged between the two groups to produce the axial magnetic field or radial magnetic field. The magnetic field producing dust in the electromagnetic coil(1) is guided to the inside of the shaping cavity of the mould(6) through the magnetic part of the mould(6) to form the magnetic field with the intensity reaching 20000 Oe, thereby making the high magnetism product of the anisotropy. A screw(8) is formed by adopting double metal abrasion alloy, and the long diameter ratio is 12 to 1 to 15 to 1, and the clearance for the screw(8) and the machine cylinder(17) is 0.1 to 0.5 mm, and the filling quantity of the magnetic powder reaches 92 percent.
Description
(1) technical field
The utility model relates to the magnetic field injector that magnetic plastics and magnetic rubber are carried out moulding, be specially adapted to the processing and forming of anisotropic magnetic plastics and rubber.
(2) background technology
The being seen injector of existing market is applicable to isotropism magnetic plastics and the rubber that moulding common plastics and General Purpose Rubber material and particle content are lower.When processing higher magnetic plastics of particle content or rubber, in plasticizing process, because the viscosity of material is higher in the machine barrel, the easy locking of injector screw rod, machine can not turn round even damage; Owing to be not orientated, its magnetic property of the goods that mold is also low, is difficult to reach the requirement to high magnetic simultaneously.Therefore, need a kind of being applicable to that magnetic plastics or magnetic rubber goods are carried out the machinery that injection moulding is processed, promptly the magnetic field injector overcomes above-mentioned shortcoming, to satisfy actual needs.
(3) utility model content
The purpose of this utility model provides a kind of magnetic field injector, and this machinery can carry out injection moulding processing to magnetic plastics or magnetic rubber goods, and goods have anisotropic highfield performance.
The purpose of this utility model realizes by following measure:
(1) at injector mould outer setting solenoid, the electric current generation high-intensity magnetic field by the control solenoid makes magnetic that magnetic field orientating take place when moulding;
(2) solenoid has two windings, and between two windings plate is set, to change magnetic direction;
(3) mould comprises magnetic conduction part and non-magnetic conduction part;
(4) material and the draw ratio of improvement injector screw rod.
Adopt the screw rod of the utility model structure, though the addition of magnetic up to 92%, material also can normally plastify, and is unlikely the situation that screw rod rotates difficulty or locking takes place, and prolonged the service life of equipment greatly.
Have anisotropic high magnetic, in light weight, shock-resistant, characteristics that the compact dimensions precision is high with the magnetic plastics of magnetic field of the present utility model injector manufacturing or magnetic rubber goods, the goods of plastic complexity, thin-walled, band inserts are widely used in fields such as electronics, instrument, motor.
(4) description of drawings
Accompanying drawing 1 is the structural representation according to the magnetic field injector that the utility model proposes.
Accompanying drawing 2 is the mould structure schematic diagrames that propose according to the utility model.
In the accompanying drawing, the component names of each label representative is:
1-solenoid 2-pull bar 3-tailgate 4-moving platen 5-solid plate 6-mould 7-plate 8- screw rod 9,10,12,13,14 is the five non-magnetic conduction core of magnetic conduction template 11-non-magnetic conduction template 15-16-goods 17-machine barrel 18-switch board 19-magnetic conduction cores
(5) specific embodiment
The utility model is provided with movably solenoid (1) outside mould (6).Solenoid (1) is supported by the rail plate that is arranged on the frame, and it moves forward and backward by the oil cylinder transmission.The mobile cooperation with the injection process of goods of solenoid (1) carries out.During matched moulds, moving platen (4) moves to solid plate (5), makes the mould closure, and solenoid (1) moves to outside the mould (6); During injection, solenoid (1) is by the electric current by switch board (18) control, and the generation high-intensity magnetic field also is orientated, and size of current and the length of orientation time all can be passed through switch board (18) control; After injection was finished, solenoid (1) can demagnetize by demagnetization current.Before the die sinking, solenoid (1) is removed, and goods (16) are taken out in die sinking easily.
The utility model is arranged on solenoid (1) outside four pull bars (2).Pull bar (2) is a non-magnet material, and is fixing by tailgate (3) and solid plate (5).Because bigger environment space around having, so, can make bigger solenoid (1), alignment magnetic field can be up to 20000 Oe.
Solenoid (1) is made up of two windings, and a plate (7) is set between two windings.When two windings forward connect, produce axial magnetic field; When two windings oppositely connect, produce radial magnetic field by plate (7).
The utility model is supported solenoid (1) by the rail plate that is arranged on the frame, realize that coil movement is flexible.
When the moulding common plastics, solenoid (1) is locked in the machine afterbody, operation is convenient equally with the normal injection machine.
Magnetic conduction in the mould (6) comprises that partly label is (9), (10), (12), (13), (14), (19), and permeability magnetic material can be selected for use: carbon steel, 45
#Steel, 40Cr etc.; Non-magnetic conduction comprises that partly label is (11), (15), and non-magnet material can be selected for use: 1Cr18Ni9Ti, no magnetic mould steel etc.The magnetic field that external electromagnetic coil (1) is produced by magnetic conduction part (9), (10), (12), (13), (14), (19) requires to import the die cavity inside of mould (6) according to the magnetic field of moulded products, forms a high-intensity magnetic field in die cavity.In forming process, the magnetic in the material rotates orientation under the effect of this high-intensity magnetic field, thereby has produced the anisotropic highfield performance of goods.
The draw ratio preferred value of plasticized screw of the present utility model (8) is 12: 1～15: 1, if the draw ratio of screw rod (8) is then mixing inhomogeneous less than 12: 1; Greater than 15: 1, then screw rod (8) torque was excessive as the draw ratio of screw rod (8), and screw rod (8) easily is damaged, and makes equipment impaired.Screw rod (8) adopts the bimetal wear resistant alloy to make; Gap preferred value between screw rod (8) and the machine barrel (17) is 0.1～0.5mm.
Claims (9)
1. a magnetic field injector that is used for plastics and rubber-moulding is characterized in that, mould partly is made of magnetic conduction part and non-magnetic conduction, and at pull bar outer setting solenoid, solenoid is connected with power supply by switch board.
2. magnetic field as claimed in claim 1 injector is characterized in that, solenoid is to be supported by the rail plate that is arranged on the frame.
3. magnetic field as claimed in claim 1 injector is characterized in that, solenoid has two windings, between two windings plate is set.
4. magnetic field as claimed in claim 1 injector is characterized in that pull bar is made of non-magnet material.
5. magnetic field as claimed in claim 1 injector is characterized in that, the magnetic conduction of mould partly is to adopt carbon steel, 45
#A kind of making of steel, three kinds of materials of 40Cr.
6. magnetic field as claimed in claim 1 injector is characterized in that, the non-magnetic conduction of mould partly is a kind of making of adopting 1Cr18Ni9Ti, two kinds of materials of no magnetic mould steel.
7. magnetic field as claimed in claim 1 injector is characterized in that, the material of screw rod is the bimetal wear resistant alloy.
8. magnetic field as claimed in claim 1 injector is characterized in that, the draw ratio of screw rod is 12: 1～15: 1.
9. magnetic field as claimed in claim 1 injector is characterized in that, the gap between screw rod and the machine barrel is 0.1～0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03244576 CN2644139Y (en) | 2003-04-07 | 2003-04-07 | Magnetic injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03244576 CN2644139Y (en) | 2003-04-07 | 2003-04-07 | Magnetic injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2644139Y true CN2644139Y (en) | 2004-09-29 |
Family
ID=34292413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03244576 Expired - Fee Related CN2644139Y (en) | 2003-04-07 | 2003-04-07 | Magnetic injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2644139Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416685A (en) * | 2011-09-15 | 2012-04-18 | 中煤科工集团重庆研究院 | Magnetic forming method of plastic |
-
2003
- 2003-04-07 CN CN 03244576 patent/CN2644139Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416685A (en) * | 2011-09-15 | 2012-04-18 | 中煤科工集团重庆研究院 | Magnetic forming method of plastic |
| CN102416685B (en) * | 2011-09-15 | 2013-12-04 | 中煤科工集团重庆研究院 | Magnetic forming method of plastic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |