CN209504699U - A kind of mold making motor brush rocker - Google Patents
A kind of mold making motor brush rocker Download PDFInfo
- Publication number
- CN209504699U CN209504699U CN201821975726.7U CN201821975726U CN209504699U CN 209504699 U CN209504699 U CN 209504699U CN 201821975726 U CN201821975726 U CN 201821975726U CN 209504699 U CN209504699 U CN 209504699U
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- China
- Prior art keywords
- former
- cover plate
- insert
- type
- upper cover
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- Expired - Fee Related
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000000748 compression moulding Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 11
- 238000007493 shaping process Methods 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model provides a kind of mold for making motor brush rocker, including upper cover plate, upper former, lower former, lower seat board, core plate, lower cover plate and insert, upper former, type hole is respectively arranged in lower former and insert, lower type hole and blinded slot, binding post and end ring are installed on blinded slot, corresponding boss is provided on upper cover plate, insert, core plate and lower cover plate successively closed assembly from top to bottom, successively seat board under closed assembly from bottom to top on core plate, lower former, upper former and upper cover plate, make boss, upper type hole, blinded slot surrounds type forming cavity, cast gate is provided on upper cover plate, the running channel of connection cast gate is provided within upper former.Using the technical solution of the utility model, by the way that boss is arranged on lower cover plate before being pressed and molded, increase cavity space, fix binding post and end ring with respect to type intracavitary locations, it carries out being cut into type workpiece after processing and forming again, reduce compression molding at ratio of defects, improve the finished product quality of production.
Description
Technical field
The utility model belongs to equipment Technology field more particularly to a kind of mold for making motor brush rocker.
Background technique
Motor brush rocker is the critical function component in motor, and motor brush rocker theme is made of engineering plastics plastic compression, wherein in
The inserts such as binding post and end ring are inlayed in face, and brush holder main body plastic compression part-structure is sufficiently complex, wherein including a Φ
The round boss of 17.4x0.5, the periphery of 17.4 round boss of Φ be provided with again a plurality of wall unevenness convex ribs and multiple sizes
Obstructed small boss, these complicated structure features increase difficulty to the production of motor brush rocker, brush in the prior art in production
When frame, usually binding post and end ring are previously positioned within type chamber first, are re-filled with plastic compression raw material, then mold is opened and is taken out
Workpiece, when making in this way, during compress molding, the circle that die joint is generally positioned at Φ 17.4x0.5 is convex
The surface of platform, end ring are embedded in inside it, in compression molding, since end ring placement location is not easy to be reliably fixed, and type
Cavity space is minimum, and after plastic pressure forming, shaping workpiece surface is not easy to take out plastic together with the street of wall of die cavity station, if
It takes out plastic compression workpiece by force using brute-force, then workpiece can be caused to damage, and since cavity space is smaller, plastic compression raw material is sometimes simultaneously
It cannot be completely filled with the intracavitary each corner of type, keep plastic compression workpiece surface quality after molding poor, yield rate is lower.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of mold for making motor brush rocker.
The utility model is achieved by the following technical programs.
The utility model provides a kind of mold for making motor brush rocker, including upper cover plate, upper former, lower former, lower seat board,
Core plate, lower cover plate and insert are respectively arranged with corresponding upper type hole, lower type hole, the edge on the upper former, lower former
It is provided with blinded slot on block, binding post is installed within the blinded slot, the upper cover conjunction of the binding post is placed with end ring, institute
It states and is provided with corresponding boss on upper cover plate, the insert, core plate and lower cover plate are successively folded according to top-down direction
It is fitted together, according to direction from bottom to top, successively closed assembly has lower seat board, lower former, upper former and upper cover on the core plate
Plate, and it is sleeved on the boss within the upper type hole, the outer wall of boss, upper type hole inner wall, blinded slot, end ring and wiring
Gap between column surrounds shape forming cavity, is additionally provided with cast gate on the upper cover plate, is additionally provided with and pours within the upper former
Road, the running channel both ends are connected to cast gate, type chamber respectively.
Fit clearance between the end ring and the lower type hole inner wall is less than 0.1mm.
Fit clearance between the binding post and the blinded slot is less than 0.1mm.
Guide post is further sleeved on the core plate, guide post sequentially passes through the lower seat board, lower former, upper yin from bottom to top
Mould and upper cover plate, the fit clearance between guide post and the lower seat board, lower former, upper former and upper cover plate are less than 0.2mm.
The cast gate is set to the upper cover plate center position, and the insert quantity is even number, and is poured with described
Mouth central axis is the periphery that symmetrical centre is evenly mounted on the cast gate.
The insert also passes through positioning pin and links together with the core plate, matching between positioning pin and the core plate
It closes gap and is less than 0.1mm.
Type core A is further sleeved on the core plate, type core A is through the insert central supported in the end ring lower end
Face.
Type core B is further sleeved on the core plate, type core B is cooperatively connected between the insert with the end ring
Together.
The utility model has the beneficial effects that: using the technical solution of the utility model, before compression molding, first
In the corresponding binding post of the intracavitary placement of type and end ring, and keep binding post and end ring placement location relatively fixed with insert, effectively keeps away
Exempt from binding post and end ring and phenomena such as positioning occurred by the impact of raw material during compression molding, makes precision to improve
It lays a good foundation, by the way that corresponding false boss is arranged on upper cover plate, increases the intracavitary space of type, keep raw material intracavitary in type
Preferable mobility is maintained, type chamber can be full of most possibly, and die joint is arranged in the outer surface of false boss
On, when raw material can not be full of type chamber, so as to can only appear on false boss institute right for the mass defect occurred on shaping workpiece
On the position answered, after taking out shaping workpiece, then part corresponding with false boss is removed by machining and is obtained
Motor brush rocker is conducive to improve product quality and yield rate, and the utility model structure is simple, easy to use, is conducive to electricity
Machine brush holder is produced in enormous quantities, and enterprises production efficiency is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the main view of the utility model insert；
Fig. 3 is the top view of the utility model insert.
In figure: 1- upper cover plate, the upper former of 2-, former under 3-, seat board under 4-, 5- core plate, 6- lower cover plate, 7- insert, 8-
Binding post, 9- end ring, 10- guide post, 11- positioning pin, 12- type core A, 13- type core B, 101- boss, 102- cast gate, 103- running channel,
The upper type hole of 201-, type hole under 301-, the blinded slot of 701- (701).
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model provides a kind of mold for making motor brush rocker, including upper cover plate 1, on
Former 2, lower former 3, lower seat board 4, core plate 5, lower cover plate 6 and insert 7, are respectively arranged on upper former 2, lower former 3 pair
Upper type hole 201, the lower type hole 301 answered are provided with blinded slot 701 on insert 7, are equipped with binding post 8 within blinded slot 701,
The upper cover conjunction of binding post 8 is placed with end ring 9, and corresponding boss 101, insert 7, core plate 5 and lower cover are provided on upper cover plate 1
Plate 6 is successively stacked according to top-down direction, on core plate 5 according to direction from bottom to top under successively closed assembly has
Seat board 4, lower former 3, upper former 2 and upper cover plate 1, and be sleeved on boss 101 within type hole 201,101 outer wall of boss, on
Gap between 201 inner wall of type hole, blinded slot 701, end ring 9 and binding post 8 surrounds shape forming cavity, also sets up on upper cover plate 1
There is cast gate 102, running channel 103 is additionally provided within upper former 2,103 both ends of running channel are connected to cast gate 102, type chamber respectively.
Using the technical solution of the utility model, before compression molding, first in the intracavitary corresponding binding post of placement of type
And end ring, and keep binding post and end ring placement location relatively fixed with insert, it effectively prevents binding post and end ring and is being molded into
There is phenomena such as positioning by the impact of raw material during type, lays a good foundation to improve production precision, by upper cover plate
The corresponding false boss of upper setting, increases the intracavitary space of type, and raw material is made to maintain preferable mobility type is intracavitary, can
It is full of type chamber most possibly, and die joint is arranged on the outer surface of false boss, when raw material can not be full of type chamber,
So that the mass defect occurred on shaping workpiece can only appear on position corresponding on false boss, taken when by shaping workpiece
After out, then part corresponding with false boss is removed by machining and obtains motor brush rocker, is conducive to improve product
Quality and yield rate, the utility model structure is simple, easy to use, is conducive to produce motor brush rocker in enormous quantities, improves
Enterprises production efficiency.
Further, the fit clearance between end ring 9 and lower 301 inner wall of type hole is less than 0.1mm.Binding post 8 and blinded slot
Fit clearance between 701 is less than 0.1mm.Using the technical solution of the utility model, end ring 9 and binding post 8 are relative to mold
The intracavitary setting position of type is relatively fixed, is conducive to the position precision for improving inserts in product.
Further, guide post 10 is further sleeved on core plate 5, guide post 10 sequentially passes through lower seat board 4, lower yin from bottom to top
Mould 3, upper former 2 and upper cover plate 1, the fit clearance between guide post 10 and lower seat board 4, lower former 3, upper former 2 and upper cover plate 1 are small
In 0.2mm.By guide post 10, lower seat board 4, lower former 3 are improved, cooperates between upper former 2 and upper cover plate 1 and core plate 5 and connects
The precision connect is laid a good foundation to improve product quality.
In addition, cast gate 102 is set to 1 center position of upper cover plate, 7 quantity of insert is even number, and in cast gate 102
Mandrel line is the periphery that symmetrical centre is evenly mounted on cast gate 102.Using the technical solution, to produce motor brush rocker in enormous quantities
Sufficient technological preparation has been carried out, production cost is advantageously reduced, production efficiency has been improved, guarantees the consistency of product quality.
Further, insert 7 is also linked together by positioning pin 11 with core plate 5, between positioning pin 11 and core plate 5
Fit clearance be less than 0.1mm.Type core A12 is further sleeved on core plate 5, type core A12 is through 7 central supported of insert in end ring
9 lower end surfaces.Type core B13 is further sleeved on core plate 5, type core B13 cooperates together between insert 7 with end ring 9.
By positioning pin 11, type core A12, type core B13, the installation accuracy of insert 7 is improved, accumulated error is reduced, to improve product
Production precision and quality is laid a good foundation.
In addition, following process can be used when making motor brush rocker, comprising the following steps:
Step 1: using the mold of above-mentioned production motor brush rocker, which is placed on moulding press, is preheated to it suitable
Work as temperature；
Step 2: putting into appropriate raw material to cast gate 102 by moulding press, flows into raw material by running channel 103 and full of type
Chamber, then shaping workpiece is obtained within type chamber after being pressed and molded the raw material within type chamber by moulding press；
Step 3: removing mold from moulding press, first successively unloads lower cover plate 6, core plate 5 from mold, then from mold
On successively unload upper cover plate 1, upper former 2, lower former 3, finally take out shaping workpiece；
Step 4: machining, cutting removal shaping workpiece and 1 boss of upper cover plate are carried out to shaping workpiece using lathe
101 corresponding parts obtain motor brush rocker.
Claims (8)
1. a kind of mold for making motor brush rocker, it is characterised in that: including upper cover plate (1), upper former (2), lower former (3), under
Seat board (4), core plate (5), lower cover plate (6) and insert (7), are respectively arranged on the upper former (2), lower former (3) pair
Upper type hole (201), the lower type hole (301) answered are provided with blinded slot (701) on the insert (7), the blinded slot (701)
Within be equipped with binding post (8), the conjunction of the upper cover of the binding post (8) is placed with end ring (9), is arranged on the upper cover plate (1)
There is a corresponding boss (101), the insert (7), core plate (5) and lower cover plate (6) are according to top-down direction successively closed assembly
Together, according to direction from bottom to top, successively closed assembly has lower seat board (4), lower former (3), upper yin on the core plate (5)
Mould (2) and upper cover plate (1), and it is sleeved on the boss (101) within the upper type hole (201), the boss (101) is outside
Gap between wall, upper type hole (201) inner wall, blinded slot (701), end ring (9) and binding post (8) surrounds shape forming cavity, described
It is additionally provided on upper cover plate (1) cast gate (102), is additionally provided with running channel (103), the running channel within the upper former (2)
(103) both ends are connected to cast gate (102), type chamber respectively.
2. the mold of production motor brush rocker as described in claim 1, it is characterised in that: the end ring (9) and the lower type hole
(301) fit clearance between inner wall is less than 0.1mm.
3. as described in claim 1 production motor brush rocker mold, it is characterised in that: the binding post (8) with it is described blinded
Fit clearance between slot (701) is less than 0.1mm.
4. the mold of production motor brush rocker as described in claim 1, it is characterised in that: be also set on the core plate (5)
Have guide post (10), guide post (10) sequentially passes through the lower seat board (4), lower former (3), upper former (2) and upper cover plate from bottom to top
(1), the fit clearance between guide post (10) and the lower seat board (4), lower former (3), upper former (2) and upper cover plate (1) is less than
0.2mm。
5. the mold of production motor brush rocker as described in claim 1, it is characterised in that: the cast gate (102) is set to described
Upper cover plate (1) center position, insert (7) quantity are even number, and are symmetrical with the cast gate (102) central axis
Center is evenly mounted on the periphery of the cast gate (102).
6. the mold of production motor brush rocker as described in claim 1, it is characterised in that: the insert (7) also passes through positioning pin
(11) it links together with the core plate (5), the fit clearance between positioning pin (11) and the core plate (5) is less than
0.1mm。
7. the mold of production motor brush rocker as described in claim 1, it is characterised in that: be also set on the core plate (5)
There is type core A (12), type core A (12) is through the insert (7) central supported in the end ring (9) lower end surface.
8. the mold of production motor brush rocker as described in claim 1, it is characterised in that: be also set on the core plate (5)
There are type core B (13), type core B (13) to cooperate together between the insert (7) with the end ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821975726.7U CN209504699U (en) | 2018-11-28 | 2018-11-28 | A kind of mold making motor brush rocker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821975726.7U CN209504699U (en) | 2018-11-28 | 2018-11-28 | A kind of mold making motor brush rocker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209504699U true CN209504699U (en) | 2019-10-18 |
Family
ID=68191196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821975726.7U Expired - Fee Related CN209504699U (en) | 2018-11-28 | 2018-11-28 | A kind of mold making motor brush rocker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209504699U (en) |
-
2018
- 2018-11-28 CN CN201821975726.7U patent/CN209504699U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |