CN202491290U - Permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting wet pressing molding technique - Google Patents
Permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting wet pressing molding technique Download PDFInfo
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- CN202491290U CN202491290U CN2011205536002U CN201120553600U CN202491290U CN 202491290 U CN202491290 U CN 202491290U CN 2011205536002 U CN2011205536002 U CN 2011205536002U CN 201120553600 U CN201120553600 U CN 201120553600U CN 202491290 U CN202491290 U CN 202491290U
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Abstract
The utility model provides a permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting a wet pressing molding technique. The permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting the wet pressing molding technique is provided with a stirring machine. The stirring machine connects with a stock supply cylinder through a stirring stock supply pipe. The stock supply cylinder connects with plunger pumps. The stock supply cylinder connects with an injection pipe. The permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting the wet pressing molding technique is also provided with a molding die. The molding die is provided with a plurality of holes. The permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting the wet pressing molding technique is characterized in that the permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting the wet pressing molding technique is provided with a fixed-quantity multi-cylinder body; the injection pipe connects with the fixed-quantity multi-cylinder body; the fixed-quantity multi-cylinder body connects with holes in the molding die respectively through secondary injection pipes; the second injection pipes connect with the fixed-quantity plunger pumps respectively; the fixed-quantity plunger pumps connect with the mini-type oil cylinders respectively; and all the mini-type oil cylinders connect with a main push oil cylinder. A multi-cylinder fixed-quantity injection method is adopted in the utility model. Thus, the fixed-quantity injection quantities of the holes in the die are the same. The thickness and density of products can be kept the same in a long term. The sintering deformation of the products is few. The grinding amount of finish is the same. The service lifetime of a grinding wheel is prolonged. And the automatic grinding processing of the products is realized.
Description
Technical field
The utility model belongs to a kind of production equipment of ferrite permanent-magnet wet pressing pressing under magnetic field, realizes quantitatively high pressure material feeding in the mould type hole is reached the purpose that product blank consistent in density is improved the quality of products.
Background technology
Permanent-magnet ferrite is called hard ferrite again, is a kind of novel nonmetal magnetic material, and it only needs the external world that the energy that once magnetizes is provided, and just can form stable magnetic field, thereby continue to provide magnetic energy to the outside.Resistivity is high, coercivity is big, can be applied in effectively in the air gaps magnetic circuit, is particularly suitable for doing the permanent magnet of small generator and motor.Permanent-magnet ferrite does not contain noble metal nickel, cobalt etc., and the raw material source is abundant, and technology is simple, and cost is low, can replace Al-Ni-Co permanent magnet to make air-conditioning variable-frequency motor, brshless DC motor, magnetic separator, magnetic bearing, loudspeaker, microwave device etc.Permanent-magnet ferrite is to be raw material with SrO or BaO and di-iron trioxide, makes through ceramic process method (pre-burning, fragmentation, powder process, compression moulding, sintering and mill processing) to form, and wherein compression moulding operation can adopt the Wet-pressing molding technology.
Existing permanent-magnet ferrite Wet-pressing molding process units, as shown in Figure 1, mixer 1 connects feed cylinder 2 to stir feeder sleeve 12; Feed cylinder 2 is connected with the plunger displacement pump 3 that links to each other with oil cylinder 31 and driven by oil cylinder 31; Also have check-valves 21 in the feed cylinder 2, feed cylinder 2 connects a filling tube 4, and filling tube 4 has some branches filling tube 41; Has mould 5; Have some types hole 51 on the mould 5, the quantity of branch's filling tube 41 is identical with type hole 51 quantity, and every filling tube 41 connects a type hole 51.Mixer 1 is through stirring feeder sleeve 12 with slip 10 input feed cylinders 2 during production; Oil cylinder 31 actuation plunger pumps 3 are pressed into filling tube 4 with slip 10 from feed cylinder 2; Inject each type hole 51 respectively through branch's filling tube 41 then, Wet-pressing molding is the permanent-magnet ferrite green compact.
Above-mentioned prior art employing membrane pump or material feeding cylinder of plunger displacement pump use to having the mould material feeding in many product type holes, are difficult to realize that shot is consistent in each type hole from a filling tube, cause each part product density difference easily; After sintering shrinks; It is bigger that product thickness differs, and the properties of product uniformity is poor, and raw-material waste is big; Have a strong impact on the grinding qualification rate of mill manufacturing procedure, reduce emery wheel service life.
The utility model content
The quantitative material injecting device of multi-cylinder that the utility model provides a kind of permanent-magnet ferrite Wet-pressing molding to produce; Its purpose solves the shortcoming that prior art exists, and the permanent-magnet ferrite Wet-pressing molding process units of a kind of permanent-magnet ferrite green compact thickness of producing, consistent in density is provided.
The utility model solves the technical scheme that its technical problem adopted:
The quantitative material injecting device of multi-cylinder that a kind of permanent-magnet ferrite Wet-pressing molding is produced has mixer, and mixer connects the feed cylinder to stir feeder sleeve; The feed cylinder is connected with plunger displacement pump, and the feed cylinder connects a filling tube, also has mould; Have some types hole on the mould, it is characterized in that: have a quantitative multi-cylinder body, above-mentioned filling tube connects quantitative multi-cylinder body; Quantitatively the multi-cylinder body is connected with a secondary filling tube respectively with each type hole on the above-mentioned mould; Every secondary filling tube connects a quantitative plunger pump, and each quantitative plunger pump connects a miniature oil cylinder, and each miniature oil cylinder is all promoted mainly oil cylinder and is connected with one.
Be connected with return duct between said quantitative multi-cylinder body and the mixer.
In the feed cylinder, stir between feeder sleeve and the filling tube and be provided with check-valves; Between each quantitative plunger pump and secondary filling tube, be provided with check-valves.
The usefulness of the utility model is:
The device of the utility model has adopted the mode of the quantitative material feeding of multi-cylinder; Make that can to change the material feeding of moulding single cylinder in the permanent-magnet ferrite Wet-pressing molding process be multi-cylinder material feeding simultaneously; Thereby to quantitatively material feeding material amount is impartial in each type hole of mould, thickness of product, density can be consistent for a long time; Can realize the high pressure material feeding, flow channel type mould material hole is not easy to stop up; After product green compact thickness, the consistent in density, the sintering warpage of product is few, the size of mill processing capacity is consistent, can improve the service life and the automation mill processing that realizes product of abrasive grinding wheel.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the sketch map of prior art;
Fig. 2 is the sketch map of the utility model.
The specific embodiment
As shown in Figure 2, the utility model also mixer 1 connects feed cylinders 2 to stir feeder sleeve 12, and feed cylinder 2 is connected with and links to each other with oil cylinder 31 and by the plunger displacement pump 3 of oil cylinder 31 drivings; Also have check-valves 21 in the feed cylinder 2, feed cylinder 2 connects a filling tube 4, also has mould 5; Has some types hole 51 on the mould; Have a quantitative multi-cylinder body 6, above-mentioned filling tube 4 connects quantitative multi-cylinder body 6, quantitatively multi-cylinder body 6 have with above-mentioned mould 5 on the identical secondary filling tube 65 of type hole 51 quantity; Each type hole 51 is connected with quantitative multi-cylinder body 6 with a secondary filling tube 65; Every secondary filling tube 65 connects a quantitative plunger pump 7, is provided with check-valves 72 between secondary filling tube 65 and the quantitative plunger pump 7, and each quantitative plunger pump 7 connects a miniature oil cylinder 71; Have one and promote mainly oil cylinder 8, each miniature oil cylinder 71 is all promoted mainly oil cylinder 8 and is connected with one.
Be connected with return duct 9 between said quantitative multi-cylinder body 6 and the mixer 1.
Mixer 1 is through stirring feeder sleeve 12 with slip 10 input feed cylinders 2 during production; Oil cylinder 31 actuation plunger pumps 3 are pressed into filling tube 4 with slip 10 from feed cylinder 2; Filling tube 4 is with the quantitative multi-cylinder body 6 of slip 10 inputs; Promote mainly oil cylinder 8 and drive miniature oil cylinder 71, miniature oil cylinder 71 drives quantitative plunger pump 7 slip 10 in the quantitative multi-cylinder body 6 is pressed in the secondary filling tube 65, and the hole of injection type respectively 51 Wet-pressing moldings are the permanent-magnet ferrite green compact again.
Because each type hole 51 all is equipped with a secondary filling tube 65, quantitative plunger pump 7 separately; So promote mainly oil cylinder 8 through control, can realize regularly, quantitatively slip 10 is injected in each type hole 51; In whole forming process; Adopt quantitative and timing stage, helped obtaining narrower slip like this and distribute and the shortest time moulding, can set best thickness.Quantitatively material feeding material amount is impartial in each type hole 51 to mould 5, and thickness of product, density can be consistent for a long time; Can control the pressure of promoting mainly oil cylinder 8 and control the pressure of miniature oil cylinder 71 and realize the high pressure material feeding, make flow channel type mould material hole be not easy to stop up.The water content of slip is used in 32%～36% scope; Shaping speed is fast; And can reduce defectives such as shaped article crackle, aliquation; The low more effect of water content is obvious more, and than conventional shaping speed piece 1/3rd, the low water content slip is annotated reliably automatically, suction and this device of the utility model can satisfy.After product green compact thickness, the consistent in density, the sintering warpage of product is few, the size of mill processing capacity is consistent.Improve the service life and the automation mill processing that realizes product of abrasive grinding wheel.
Above-mentioned check- valves 21,72 all plays the effect that prevents that slip 10 from refluxing.Return duct 9 is carried back mixer 1 recycle with slip 10 unnecessary in the quantitative multi-cylinder body 6.
Claims (3)
1. the quantitative material injecting device of multi-cylinder that the permanent-magnet ferrite Wet-pressing molding is produced has mixer, and mixer connects the feed cylinder to stir feeder sleeve; The feed cylinder is connected with plunger displacement pump, and the feed cylinder connects a filling tube, also has mould; Have some types hole on the mould, it is characterized in that: have a quantitative multi-cylinder body, above-mentioned filling tube connects quantitative multi-cylinder body; Quantitatively the multi-cylinder body is connected with a secondary filling tube respectively with each type hole on the above-mentioned mould; Every secondary filling tube connects a quantitative plunger pump, and each quantitative plunger pump connects a miniature oil cylinder, and each miniature oil cylinder is all promoted mainly oil cylinder and is connected with one.
2. the quantitative material injecting device of multi-cylinder that permanent-magnet ferrite Wet-pressing molding as claimed in claim 1 is produced is characterized in that: be connected with return duct between said quantitative multi-cylinder body and the mixer.
3. the quantitative material injecting device of multi-cylinder that permanent-magnet ferrite Wet-pressing molding as claimed in claim 1 is produced is characterized in that: in the feed cylinder, stir between feeder sleeve and the filling tube and be provided with check-valves; Between each quantitative plunger pump and secondary filling tube, be provided with check-valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205536002U CN202491290U (en) | 2011-12-27 | 2011-12-27 | Permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting wet pressing molding technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205536002U CN202491290U (en) | 2011-12-27 | 2011-12-27 | Permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting wet pressing molding technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202491290U true CN202491290U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205536002U Expired - Lifetime CN202491290U (en) | 2011-12-27 | 2011-12-27 | Permanent-magnet multi-cylinder fixed-quantity injection device produced by adopting wet pressing molding technique |
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| Country | Link |
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| CN (1) | CN202491290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303588A (en) * | 2019-07-16 | 2019-10-08 | 嘉善县天成强磁有限责任公司 | Full-automatic material-feeding system |
| CN111516123A (en) * | 2019-08-23 | 2020-08-11 | 横店集团东磁股份有限公司 | Implementation method for permanent magnetic ferrite wet-pressing magnetic field forming die material injection plate |
-
2011
- 2011-12-27 CN CN2011205536002U patent/CN202491290U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303588A (en) * | 2019-07-16 | 2019-10-08 | 嘉善县天成强磁有限责任公司 | Full-automatic material-feeding system |
| CN110303588B (en) * | 2019-07-16 | 2024-03-01 | 嘉兴天成强磁科技股份有限公司 | Full-automatic feeding system |
| CN111516123A (en) * | 2019-08-23 | 2020-08-11 | 横店集团东磁股份有限公司 | Implementation method for permanent magnetic ferrite wet-pressing magnetic field forming die material injection plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |