CN214491328U - Rotor magnetic steel groove injection mold - Google Patents
Rotor magnetic steel groove injection mold Download PDFInfo
- Publication number
- CN214491328U CN214491328U CN202120776758.XU CN202120776758U CN214491328U CN 214491328 U CN214491328 U CN 214491328U CN 202120776758 U CN202120776758 U CN 202120776758U CN 214491328 U CN214491328 U CN 214491328U
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- magnetic steel
- steel groove
- die
- injection molding
- core
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Abstract
The utility model provides a rotor magnet steel groove injection mold, includes mould, lower mould, establishes the die cavity on the lower mould, establishes on the mould with the communicating hole of moulding plastics of die cavity gliding core about the installation in the die cavity, installation spring between core and die cavity lower surface, the location is protruding on the magnet steel groove that the core upper surface was equipped with circumference and arranges, and the location is protruding under the magnet steel groove that the upper die lower surface was equipped with and fixes a position protruding corresponding on the magnet steel groove. The injection molding material residue can be avoided on the upper surface of the iron core, the injection molding material on the upper surface of the iron core does not need to be removed again, time and labor are saved, the injection molding material is saved, and the injection molding cost is reduced.
Description
Technical Field
The utility model relates to a rotor injection mold especially relates to a rotor magnet steel groove injection mold.
Background
The structure of the permanent magnet rotor is that magnetic steel is arranged in a magnetic steel groove of an iron core, so that the iron core has magnetism. In the production process of the permanent magnet rotor, in order to improve the stability of the magnetic steel mounting structure, the magnetic steel needs to be injected in the magnetic steel groove, so that the magnetic steel is firmly fixed in the magnetic steel groove. The existing permanent magnet rotor injection mold consists of an upper mold, a lower mold, a cavity arranged on the lower mold and an injection molding hole arranged on the upper mold and communicated with the cavity. Because the iron core is formed by the iron core piece overlapping riveting, the iron core height formed by overlapping riveting has certain tolerance, the depth of a cavity on the permanent magnet rotor injection mold can only be manufactured according to the maximum tolerance, and in the injection molding process, a gap exists between the upper surface of the iron core and the lower surface of an upper mold, so that the injection molding material residue exists on the upper surface of the iron core, the injection molding material on the upper surface of the iron core needs to be removed secondarily, time and labor are wasted, the injection molding material is wasted, and the injection molding cost is high.
Disclosure of Invention
The utility model provides a solve above-mentioned technical problem, provide a rotor magnetism steel groove injection mold, it can make the iron core upper surface not have the injection molding material to remain, need not the secondary and clears away the injection molding material of iron core upper surface, labour saving and time saving practices thrift the injection molding material, reduces the cost of moulding plastics.
The technical solution of the utility model is that:
the utility model provides a rotor magnet steel groove injection mold, includes mould, lower mould, establishes the die cavity on the lower mould, establishes on the mould with the communicating injection hole of die cavity, its special character lies in: the upper surface of the core is provided with a magnetic steel groove upper positioning bulge which is circumferentially arranged, and the lower surface of the upper die is provided with a magnetic steel groove lower positioning bulge corresponding to the magnetic steel groove upper positioning bulge.
Further, a push rod which is vertically inserted into the cavity is arranged at the lower part of the lower die, a vertical central hole is formed in the die core, and the push rod is inserted into the central hole.
Furthermore, a rotor shaft insertion hole is formed in the upper end of the push rod, when the mold is removed, the lower end of the rotor shaft is inserted into the rotor shaft insertion hole, and the push rod pushes the lower surface of the rotor upwards to push the rotor out of the cavity.
Furthermore, a sheath is arranged on the inner wall of the cavity, so that the abrasion of the lower die is reduced, and the maintenance or replacement cost is reduced.
Furthermore, the lower die is composed of an upper split body and a lower split body, and the upper split body and the lower split body are connected through bolts, so that maintenance or replacement of internal parts of the lower die are facilitated.
The utility model has the advantages that:
1. because the core that slides from top to bottom is installed in the die cavity, install the spring between core and die cavity lower surface, when going up mould and lower mould compound die, under spring force effect, the core pushes up the iron core upper surface and leans on to last mould lower surface, and in close contact with between iron core upper surface and the last mould lower surface prevents that there is injection molding material residue in the iron core upper surface, need not the secondary and clears away the injection molding material of iron core upper surface, labour saving and time saving practices thrift the injection molding material, has reduced the cost of moulding plastics.
2. Because the location is protruding on the magnetic steel groove that core upper surface was equipped with circumference and arranges, the upper die lower surface be equipped with the magnetic steel groove on the magnetic steel groove location under protruding corresponding magnetic steel groove, the protruding and magnetic steel groove location under on the magnetic steel groove is protruding to insert and is corresponding the magnetic steel groove, to iron core circumference location, the position of moulding plastics is accurate, avoids the injection molding material to annotate the iron core upper surface.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a bottom view of the upper die of FIG. 1;
FIG. 3 is a top view of the mandrel of FIG. 1;
in the figure: 1-upper die, 2-lower die, 3-die cavity, 4-injection molding hole, 5-sheath, 6-core, 7-spring, 8-upper positioning projection of magnetic steel groove, 9-lower positioning projection of magnetic steel groove, 10-push rod, 11-rotor shaft jack and 12-center hole.
Detailed Description
As shown in fig. 1-3, a rotor magnetic steel slot injection mold comprises an upper mold 1, a lower mold 2, a cavity 3 arranged on the lower mold 2, and an injection hole 4 arranged on the upper mold 1 and communicated with the cavity 3, wherein the lower mold 2 is composed of an upper mold split body and a lower mold split body, the upper mold split body and the lower mold split body are connected through bolts, a sheath 5 is arranged in the cavity 3, a core 6 which slides up and down is arranged in the sheath 5, a spring 7 is arranged between the core 6 and the lower surface of the cavity 3, a circumferentially arranged upper magnetic steel slot positioning bulge 8 is arranged on the upper surface of the core 6, a lower magnetic steel slot positioning bulge 9 corresponding to the upper magnetic steel slot positioning bulge 8 is arranged on the lower surface of the upper mold 1, a push rod 10 which is vertically inserted into the cavity 3 is arranged on the lower portion of the lower mold 2, a rotor shaft insertion hole 11 is arranged on the upper end of the push rod 10, and a vertical center hole 12 is arranged on the core 6, the push rod 10 is inserted into the central hole 12.
During injection molding operation, the lower die 2 is firstly installed on a rack of an injection molding machine, the upper die 1 and the push rod 10 are respectively connected with corresponding oil cylinders of the injection molding machine, the injection molding hole 4 is connected with an injection molding pipe, then the rotor is placed into the cavity 3, the upper die 1 and the lower die 2 are assembled, under the elastic action of the spring 7, the core 6 pushes the upper surface of the iron core against the lower surface of the upper die 1, injection molding is carried out into the cavity 3 through the injection molding pipe, after cooling forming, the upper die 1 and the lower die 2 are opened, the injection molded rotor is taken out, and injection molding operation is completed.
The above description is only an example of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a rotor magnet steel groove injection mold, includes mould, lower mould, establishes the die cavity on the lower mould, establishes on the mould with the communicating hole of moulding plastics of die cavity, its characterized in that: the upper surface of the core is provided with a magnetic steel groove upper positioning bulge which is circumferentially arranged, and the lower surface of the upper die is provided with a magnetic steel groove lower positioning bulge corresponding to the magnetic steel groove upper positioning bulge.
2. The rotor magnetic steel slot injection mold of claim 1, characterized in that: and a push rod vertically inserted into the cavity is arranged at the lower part of the lower die, a vertical central hole is formed in the core, and the push rod is inserted into the central hole.
3. The rotor magnetic steel slot injection mold of claim 2, characterized in that: the upper end of the push rod is provided with a rotor shaft jack.
4. The rotor magnetic steel slot injection mold of claim 1, characterized in that: and a sheath is arranged on the inner wall of the cavity.
5. The rotor magnetic steel slot injection mold of claim 1, characterized in that: the lower die is composed of a lower die upper split body and a lower die lower split body, and the lower die upper split body and the lower die lower split body are connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120776758.XU CN214491328U (en) | 2021-04-16 | 2021-04-16 | Rotor magnetic steel groove injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120776758.XU CN214491328U (en) | 2021-04-16 | 2021-04-16 | Rotor magnetic steel groove injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214491328U true CN214491328U (en) | 2021-10-26 |
Family
ID=78201975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120776758.XU Active CN214491328U (en) | 2021-04-16 | 2021-04-16 | Rotor magnetic steel groove injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214491328U (en) |
-
2021
- 2021-04-16 CN CN202120776758.XU patent/CN214491328U/en active Active
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