CN201846204U - Oriented magnetic field in plastic magnetic rotor mould - Google Patents
Oriented magnetic field in plastic magnetic rotor mould Download PDFInfo
- Publication number
- CN201846204U CN201846204U CN2010205864318U CN201020586431U CN201846204U CN 201846204 U CN201846204 U CN 201846204U CN 2010205864318 U CN2010205864318 U CN 2010205864318U CN 201020586431 U CN201020586431 U CN 201020586431U CN 201846204 U CN201846204 U CN 201846204U
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- Prior art keywords
- fan
- magnetic
- plastic
- magnetic field
- shaped
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- Expired - Fee Related
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Abstract
The utility model discloses an oriented magnetic field in a plastic magnetic rotor mould, in which fan-shaped magnetic blocks and fan-shaped holes are tightly matched after assembly and a die cavity also is not deformed. The oriented magnetic field in the plastic magnetic rotor mould comprises a magnetic steel ring, wherein the magnetic steel ring is provided with an even number of fan-shaped holes encircling a center hole of the magnetic steel ring, fan-shaped magnetic blocks are arranged in the fan-shaped holes, the middle parts of the outer edges of the fan-shaped holes are provided with wedging grooves, and wedge-shaped blocks are arranged in the wedging grooves. After the oriented magnetic field is assembled, the fan-shaped magnetic blocks and the fan-shaped holes are tightly matched, the die cavity also can not be deformed, and a plastic magnetic rotor after being formed has high accuracy and can be directly used, and thereby the production efficiency of the plastic magnetic rotor is enhanced greatly. The oriented magnetic field disclosed by the utility model is mainly used for producing the plastic magnetic rotor.
Description
Technical field
The utility model relates to the plastic magnetic rotor mould, refers more particularly to the alignment magnetic field in the plastic magnetic rotor mould.
Background technology
Alignment magnetic field in the plastic magnetic rotor mould comprises: the magnet steel circle, the magnet steel corral is provided with the plurality of sector hole around its centre bore, is provided with fan-shaped magnetic patch in the scallop hole.Because have only 0.3 millimeter between the mold cavity in the inside edge of scallop hole and the centre bore of magnet steel circle, the tension if fan-shaped magnetic patch is packed into can cause mold cavity deformation, and assembly difficulty strengthens; The pine if fan-shaped magnetic patch was packed into, die cavity also can be out of shape.Like this, the plastic magnetic rotor precision after the moulding is low, must can use through after the machined into, and the production efficiency of plastic magnetic rotor is lower.
The utility model content
Technical problem to be solved in the utility model is: a kind of alignment magnetic field that assembles in the fan-shaped magnetic patch in back and scallop hole close-fitting and the indeformable plastic magnetic rotor mould of die cavity is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the alignment magnetic field in the plastic magnetic rotor mould, comprise: the magnet steel circle, the magnet steel corral is provided with the even number scallop hole around its centre bore, be provided with fan-shaped magnetic patch in the scallop hole, be provided with the fit-up gap between described fan-shaped magnetic patch and the scallop hole, the middle part of described scallop hole outer edge offers to carve closes groove, carves to close to be provided with wedge type block in the groove.
Described scallop hole evenly is arranged on around the centre bore of magnet steel circle.
The end of described wedge type block is provided with the guiding chamfering.
The beneficial effects of the utility model are: close groove because the middle part of scallop hole outer edge offers to carve, so just can between fan-shaped magnetic patch and scallop hole, the fit-up gap be set, thereby be easy to fan-shaped magnetic patch is put into scallop hole, then, by selecting suitable wedge type block to eliminate fit-up gap between fan-shaped magnetic patch and the scallop hole, fan-shaped magnetic patch is positioned in the scallop hole.After the assembling, fan-shaped magnetic patch and scallop hole close-fitting, and die cavity can not be out of shape, and the plastic magnetic rotor precision height after the moulding can directly use, thereby has improved the production efficiency of plastic magnetic rotor greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.
Among Fig. 1 to Fig. 2: 1, magnet steel circle, 11, centre bore, 2, fan-shaped magnetic patch, 3, wedge type block.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 1, alignment magnetic field in the plastic magnetic rotor mould described in the utility model, comprise: magnet steel circle 1, magnet steel circle 1 evenly is provided with 10 scallop holes around its centre bore 11, be respectively arranged with fan-shaped magnetic patch 2 in each scallop hole, 0.03 millimeter the fit-up gap of having an appointment is set between each fan-shaped magnetic patch 2 and the corresponding scallop hole usually, and the middle part of the outer edge of each scallop hole offers respectively to carve closes groove, and each is carved to close and is respectively arranged with wedge type block 3 in the groove.Insert to carve for the ease of wedge type block 3 and close groove, the end of wedge type block 3 is provided with the guiding chamfering---referring to shown in Figure 2.
During assembling, plug is put into the centre bore of magnet steel circle 1, then, 10 fan-shaped magnetic patch are put into 10 scallop holes respectively, symmetry is pressed into wedge type block 3, eliminates the fit-up gap between fan-shaped magnetic patch 2 and the corresponding scallop hole, and fan-shaped magnetic patch 3 is positioned in the scallop hole.
Claims (3)
1. the alignment magnetic field in the plastic magnetic rotor mould, comprise: the magnet steel circle, the magnet steel corral is provided with the even number scallop hole around its centre bore, be provided with fan-shaped magnetic patch in the scallop hole, it is characterized in that: be provided with the fit-up gap between described fan-shaped magnetic patch and the scallop hole, the middle part of described scallop hole outer edge offers to carve closes groove, carves to close to be provided with wedge type block in the groove.
2. alignment magnetic field as claimed in claim 1 is characterized in that: described scallop hole evenly is arranged on around the centre bore of magnet steel circle.
3. alignment magnetic field as claimed in claim 1 or 2 is characterized in that: the end of described wedge type block is provided with the guiding chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205864318U CN201846204U (en) | 2010-11-02 | 2010-11-02 | Oriented magnetic field in plastic magnetic rotor mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205864318U CN201846204U (en) | 2010-11-02 | 2010-11-02 | Oriented magnetic field in plastic magnetic rotor mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201846204U true CN201846204U (en) | 2011-05-25 |
Family
ID=44041080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205864318U Expired - Fee Related CN201846204U (en) | 2010-11-02 | 2010-11-02 | Oriented magnetic field in plastic magnetic rotor mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201846204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672011A (en) * | 2017-09-19 | 2018-02-09 | 杭州普门磁性器件有限公司 | The extrusion molding apparatus and its method of a kind of radial multi-pole magnetic ring |
-
2010
- 2010-11-02 CN CN2010205864318U patent/CN201846204U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672011A (en) * | 2017-09-19 | 2018-02-09 | 杭州普门磁性器件有限公司 | The extrusion molding apparatus and its method of a kind of radial multi-pole magnetic ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20131102 |