CN203599522U - Automatic injection forming die special for microwave oven annular magnetic steel - Google Patents
Automatic injection forming die special for microwave oven annular magnetic steel Download PDFInfo
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- CN203599522U CN203599522U CN201320796802.9U CN201320796802U CN203599522U CN 203599522 U CN203599522 U CN 203599522U CN 201320796802 U CN201320796802 U CN 201320796802U CN 203599522 U CN203599522 U CN 203599522U
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Abstract
The utility model discloses an automatic injection forming device special for microwave oven annular magnetic steel. The automatic injection forming device special for the microwave oven annular magnetic steel is high in production efficiency, low in labor intensity, and capable of greatly reducing the production difficulty of the annular magnetic steel for a microwave oven. The automatic injection forming device comprises a cushion block. An outer female die is movably arranged on the upper surface of the cushion block. An inner female die is sleeved with the outer female die. An undershot basal body is sleeved with the inner female die. The top end of the undershot basal body is lower than the top end of the inner female die. The top end of the undershot basal body is an inclined surface end with the high inner portion and the low outer portion. An undershot inclined insert which does not have magnetic conductivity is arranged at the inclined surface end. The inner portion of the undershot inclined insert is thinner than the outer portion of the undershot inclined insert. The upper surface of the undershot inclined insert is a horizontal plane. A core rod is tightly sleeved with the undershot basal body. An overshot basal body is arranged at the upper end of the outer female die, an overshot insert is arranged on the lower surface of the overshot basal body, and a coil which can generate magnetic fields winds the outer wall of the outer female die. The automatic injection forming die is mainly used in the preparation technology of the annular magnetic steel of the microwave oven.
Description
Technical field
The utility model relates to permanent magnetic part preparing technical field, relates in particular to the special automatic-feeding mould of a kind of micro-wave oven annular magnetic steel.
Background technology
The magnetic field orientating of the annular magnetic steel of using due to micro-wave oven has specific (special) requirements, the magnet steel upper surface of annular magnetic steel is different with the Distribution of Magnetic Field intensity of magnet steel lower surface, the magnetic field intensity of magnet steel upper surface is decayed to inner circle gradually by cylindrical, and the magnetic field intensity of magnet steel lower surface is strengthened to inner circle gradually by cylindrical.Therefore, in compacting, when annular magnetic steel, the trend that control the annular magnetic steel magnetic line of force is relatively complicated, and the difficulty that causes producing the annular magnetic steel that micro-wave oven uses is larger.
At present, producing the annular magnetic steel capital used of micro-wave oven is to adopt subpress, and the pressing mode of artificial scraper, and not only efficiency is low, and effort, cost are high.
Open day is on October 24th, 2007, publication number is that 200963678 patent document discloses a kind of permanent ferrite wet pressure magnetic tile automatic-feeding mould, comprise patrix, middle mould and counterdie, the bottom of middle mould and counterdie is being communicated with storage compartment, the bottom of storage compartment is provided with material feeding entrance, the middle cavities that patrix, middle mould and counterdie are corresponding is die cavity, it is characterized in that: A, be provided with one or more seal groove at the periphery of counterdie bottom, be provided with sealing ring in seal groove; B, in middle mould lower surface, corresponding with storage compartment, be positioned at counterdie both sides and be respectively equipped with vertical material feeding the region between the heart and the diaphragm hole upwards; Middle mould top, be provided with die cavity corresponding position the horizontal mounting hole that is communicated with die cavity, horizontal mounting hole is being communicated with top, vertical mould material feeding the region between the heart and the diaphragm hole.Weak point is, this mould is difficult for producing and meets the annular magnetic steel that micro-wave oven is used.
Utility model content
The utility model is the larger deficiency of annular magnetic steel production difficulty of using in order to solve microwave current stove, provide that a kind of production efficiency is high, labour intensity is low, and can greatly reduce the special automatic-feeding mould of a kind of micro-wave oven annular magnetic steel of the production difficulty of the annular magnetic steel that micro-wave oven uses.
To achieve these goals, the utility model is by the following technical solutions:
The automatic-feeding mould that micro-wave oven annular magnetic steel is special, comprises cushion block, and on the upper surface of cushion block, activity is placed with non-magnetic outer die, and outer die is cylindrical; On the inwall of die, be inlaid with outside non-magnetic interior die, and interior die is cylindrical, interior die and outer die are contour; In interior die, closely cover has the undershoot matrix of magnetic conduction, and undershoot matrix is cylindrical, and the top of undershoot matrix is lower than the top of interior die, and is provided with low inside and high outside beveled end at the top end of undershoot matrix; In the beveled end on undershoot matrix top, be provided with non-magnetic undershoot and tiltedly insert, and undershoot tiltedly inserts and be annular, undershoot is tiltedly inserted interior thin outer thick, and the undershoot upper surface of tiltedly inserting is horizontal plane; In undershoot matrix, closely cover has non-magnetic plug, and plug is cylindrical, and the top of plug and the top of interior die are on same horizontal plane; Die movable upper end is placed with the upper punch matrix of magnetic conduction outside, and upper punch matrix is cylindrical; On the lower surface of upper punch matrix, embed to be provided with and insert for columniform non-magnetic upper punch, and the lower surface of the lower surface inserted of upper punch and upper punch matrix is on same horizontal plane; On the outer wall of die, be arranged with outside the coil that produces magnetic field; By upper punch insert, interior die, undershoot is tiltedly inserted and plug surrounds an airtight die cavity, and is provided with the material feeding passage communicating with die cavity in cushion block, outer die and interior die.
Outer die adopts non-magnetic material to make, and the interior die that the intermediate sleeve of die has non-magnesium hard alloy material to make outside.The sprue height of the material feeding passage of offering on interior die inwall will be determined according to the water content of the thickness of annular magnetic steel product and material oar.Sprue communicates by material feeding passage with outer die and cushion block, and when use, material feeding passage is connected with the pipe of outside material feeding pump, and the pipe of material feeding pump is equipped with check valve, and in the time of compacting, check valve can prevent from expecting that oar refluxes.First the design of material feeding channel path will guarantee the sealing of passage, will consider in addition to inject the uniformity of every chamber material oar.
Upper punch matrix float downward after with outer die matched moulds, die cavity is closed, material feeding pump work is injected into material oar in die cavity through material feeding passage, compressing after material feeding completes.And in material feeding and pressing process, give coil electricity, after coil electricity, produce magnetic field.
Tiltedly inserted to the non-magnetic undershoot of centre minimizing by edge because the top of undershoot matrix studs with magnetic resistance, upper punch matrix is magnetic conduction, and inserts as non-magnetic in the middle upper punch of upper punch matrix.The magnetic line of force trend of the blank annular magnetic steel being pressed into like this can be angled with axis, and desired angle is 40～50 degree.(as shown in Figure 2), compressing like this annular magnetic steel, the magnetic field intensity of its magnet steel upper surface is decayed to inner circle gradually by cylindrical, and the magnetic field intensity of magnet steel lower surface is strengthened to inner circle gradually by cylindrical, meets the instructions for use of the annular magnetic steel that micro-wave oven uses.And production efficiency is high, labour intensity is low, and can greatly reduce the production difficulty of the annular magnetic steel that micro-wave oven uses.
As preferably, the angle of inclination of described beveled end is 40～50 degree.The annular magnetic steel that this angle is compressing, the magnetic field intensity of its upper surface is decayed to inner circle gradually by cylindrical, and the magnetic field intensity of magnet steel lower surface is strengthened to inner circle gradually by cylindrical, meets the instructions for use of the annular magnetic steel that micro-wave oven uses.
As preferably, on the lower surface of upper punch matrix, be provided with and the body concentric cylinder shape groove of upper punch base, upper punch is inserted and is closely enclosed within cylinder shape groove.Be convenient to make and control the size and location that upper punch is inserted.
As preferably, interior die adopts non-magnetic carbide alloy material to make.Intensity is high.
The utility model can reach following effect:
1, the compressing annular magnetic steel of the utility model, the magnetic field intensity of its upper surface is decayed to inner circle gradually by cylindrical, and the magnetic field intensity of magnet steel lower surface is strengthened to inner circle gradually by cylindrical, meets the instructions for use of the annular magnetic steel that micro-wave oven uses.
2, the utility model production efficiency is high, labour intensity is low, and can greatly reduce the production difficulty of the annular magnetic steel that micro-wave oven uses.
3, the utility model is convenient to adopt large-tonnage press to produce, if the number of packages of mould is many, output is large, speed of production is also very fast, time saving and energy saving, and be automatic-feeding, automatic blank fetching, automaticity is high, magnet density is good, and performance can meet the instructions for use of the annular magnetic steel that micro-wave oven uses completely.
Accompanying drawing explanation
Fig. 1 is a kind of sectional structure schematic diagram of the present utility model.
Fig. 2 is a kind of principle schematic of the magnetic field orientating direction of the annular magnetic steel that need to produce of the utility model.
In figure: magnet steel upper surface 1, annular magnetic steel 2, magnet steel lower surface 3, upper punch matrix 4, upper punch inserts 5, die cavity 6, sprue 7, material feeding passage 8, plug 9, cushion block 10, outer die 11, interior die (12), undershoot tiltedly inserts 13, undershoot matrix 14, coil 15.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the automatic-feeding mould that a kind of micro-wave oven annular magnetic steel is special, shown in Figure 1, comprise cushion block 10, on the upper surface of cushion block, activity is placed with non-magnetic outer die 11, and outer die is cylindrical.On the inwall of die, be inlaid with outside non-magnetic interior die (12), and interior die is cylindrical, interior die and outer die are contour, and interior die adopts non-magnetic carbide alloy material to make.In interior die, closely cover has the undershoot matrix 14 of magnetic conduction, and undershoot matrix is cylindrical, and the top of undershoot matrix is lower than the top of interior die, and is provided with low inside and high outside beveled end at the top end of undershoot matrix, and the angle of inclination of beveled end is 45 degree.In the beveled end on undershoot matrix top, be provided with non-magnetic undershoot and tiltedly insert 13, and undershoot tiltedly inserts and be annular, undershoot is tiltedly inserted interior thin outer thick, and the undershoot upper surface of tiltedly inserting is horizontal plane.In undershoot matrix, closely cover has non-magnetic plug 9, and plug is cylindrical, and the top of plug and the top of interior die are on same horizontal plane.Die movable upper end is placed with the upper punch matrix 4 of magnetic conduction outside, and upper punch matrix is cylindrical.On the lower surface of upper punch matrix, be provided with and the body concentric cylinder shape groove of upper punch base, in cylinder shape groove, closely cover embeds promising columniform non-magnetic upper punch and inserts 5, and the lower surface of the lower surface inserted of upper punch and upper punch matrix is on same horizontal plane.On the outer wall of die, be arranged with outside the coil 15 that produces magnetic field.By upper punch insert, interior die, undershoot is tiltedly inserted and plug surrounds an airtight die cavity 6, and in cushion block, outer die and interior die, is provided with the material feeding passage 8 communicating with die cavity.
Sprue 7 height of the material feeding passage of offering on interior die inwall will be determined according to the water content of the thickness of annular magnetic steel product and material oar.Sprue communicates by material feeding passage with outer die and cushion block, and when use, material feeding passage is connected with the pipe of outside material feeding pump, and the pipe of material feeding pump is equipped with check valve, and in the time of compacting, check valve can prevent from expecting that oar refluxes.First the design of material feeding channel path will guarantee the sealing of passage, will consider in addition to inject the uniformity of every chamber material oar.
When use, upper punch matrix float downward after with outer die matched moulds, die cavity is closed, material feeding pump work is injected into material oar in die cavity through material feeding passage, compressing after material feeding completes.And in material feeding and pressing process, give coil electricity, after coil electricity, produce magnetic field.Tiltedly inserted to the non-magnetic undershoot of centre minimizing by edge because the top of undershoot matrix studs with magnetic resistance, upper punch matrix is magnetic conduction, and inserts as non-magnetic in the middle upper punch of upper punch matrix.The magnetic line of force trend of the blank annular magnetic steel being pressed into like this can be angled with axis, and desired angle is 45 degree.(as shown in Figure 2), compressing like this annular magnetic steel 2, on its magnet steel, the magnetic field intensity of table 1 is decayed to inner circle gradually by cylindrical, and the magnetic field intensity that magnet steel following table is 3 is strengthened to inner circle gradually by cylindrical, meets the instructions for use of the annular magnetic steel that micro-wave oven uses.And production efficiency is high, labour intensity is low, and can greatly reduce the production difficulty of the annular magnetic steel that micro-wave oven uses.
Described by reference to the accompanying drawings embodiment of the present utility model above, but not limited by above-described embodiment while realizing, those of ordinary skills can make a variety of changes within the scope of the appended claims or revise.
Claims (4)
1. the special automatic-feeding mould of micro-wave oven annular magnetic steel, is characterized in that, comprises cushion block (10), and on the upper surface of cushion block, activity is placed with non-magnetic outer die (11), and outer die is cylindrical; On the inwall of die, be inlaid with outside non-magnetic interior die (12), and interior die is cylindrical, interior die and outer die are contour; In interior die, closely cover has the undershoot matrix (14) of magnetic conduction, and undershoot matrix is cylindrical, and the top of undershoot matrix is lower than the top of interior die, and is provided with low inside and high outside beveled end at the top end of undershoot matrix; In the beveled end on undershoot matrix top, be provided with non-magnetic undershoot and tiltedly insert (13), and undershoot tiltedly inserts and be annular, undershoot is tiltedly inserted interior thin outer thick, and the undershoot upper surface of tiltedly inserting is horizontal plane; In undershoot matrix, closely cover has non-magnetic plug (9), and plug is cylindrical, and the top of plug and the top of interior die are on same horizontal plane; Die movable upper end is placed with the upper punch matrix (4) of magnetic conduction outside, and upper punch matrix is cylindrical; On the lower surface of upper punch matrix, embed to be provided with and insert (5) for columniform non-magnetic upper punch, and the lower surface of the lower surface inserted of upper punch and upper punch matrix is on same horizontal plane; On the outer wall of die, be arranged with outside the coil (15) that produces magnetic field; By upper punch insert, interior die, undershoot is tiltedly inserted and plug surrounds an airtight die cavity (6), and in cushion block, outer die and interior die, is provided with the material feeding passage (8) communicating with die cavity.
2. the special automatic-feeding mould of a kind of micro-wave oven annular magnetic steel according to claim 1, is characterized in that, the angle of inclination of described beveled end is 40～50 degree.
3. the special automatic-feeding mould of a kind of micro-wave oven annular magnetic steel according to claim 1, is characterized in that, is provided with and the body concentric cylinder shape groove of upper punch base on the lower surface of upper punch matrix, and upper punch is inserted and is closely enclosed within cylinder shape groove.
4. the special automatic-feeding mould of a kind of micro-wave oven annular magnetic steel according to claim 1, is characterized in that, interior die adopts non-magnetic carbide alloy material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796802.9U CN203599522U (en) | 2013-12-05 | 2013-12-05 | Automatic injection forming die special for microwave oven annular magnetic steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796802.9U CN203599522U (en) | 2013-12-05 | 2013-12-05 | Automatic injection forming die special for microwave oven annular magnetic steel |
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| CN203599522U true CN203599522U (en) | 2014-05-21 |
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| CN201320796802.9U Expired - Fee Related CN203599522U (en) | 2013-12-05 | 2013-12-05 | Automatic injection forming die special for microwave oven annular magnetic steel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081315A (en) * | 2015-08-25 | 2015-11-25 | 廊坊京磁精密材料有限公司 | Compression molding mold for sintered nd-fe-b |
| CN105666662A (en) * | 2016-01-25 | 2016-06-15 | 嘉善县天成强磁有限责任公司 | Annular ferrite full-automatic slip casting mold |
| CN110460211A (en) * | 2019-07-16 | 2019-11-15 | 宁波韵升粘结磁体有限公司 | A kind of mold being molded permanent magnet for manufacturing anisotropy |
| CN112600318A (en) * | 2020-12-22 | 2021-04-02 | 湖南航天磁电有限责任公司 | Ferrite product capable of reducing motor tooth space torque and forming die thereof |
-
2013
- 2013-12-05 CN CN201320796802.9U patent/CN203599522U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081315A (en) * | 2015-08-25 | 2015-11-25 | 廊坊京磁精密材料有限公司 | Compression molding mold for sintered nd-fe-b |
| CN105666662A (en) * | 2016-01-25 | 2016-06-15 | 嘉善县天成强磁有限责任公司 | Annular ferrite full-automatic slip casting mold |
| CN110460211A (en) * | 2019-07-16 | 2019-11-15 | 宁波韵升粘结磁体有限公司 | A kind of mold being molded permanent magnet for manufacturing anisotropy |
| CN112600318A (en) * | 2020-12-22 | 2021-04-02 | 湖南航天磁电有限责任公司 | Ferrite product capable of reducing motor tooth space torque and forming die thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20201205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |