CN107346856B - Convenient for the carbon brush mold of taking-up - Google Patents
Convenient for the carbon brush mold of taking-up Download PDFInfo
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- CN107346856B CN107346856B CN201710757486.7A CN201710757486A CN107346856B CN 107346856 B CN107346856 B CN 107346856B CN 201710757486 A CN201710757486 A CN 201710757486A CN 107346856 B CN107346856 B CN 107346856B
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- mold
- piston
- carbon brush
- rack
- formed punch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/12—Manufacture of brushes
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of molds, specifically disclose a kind of carbon brush mold convenient for taking-up；Including rack, mold and formed punch, mold is fixed on the rack, and formed punch is located above mold；It is equipped with the piston that can be slided along mould side wall in mold, cooling chamber is equipped in mould side wall, cooling chamber is connected to type chamber；Overflow valve and water pump are connected in turn positioned at the mold cavity of piston underside, and overflow valve is also connected with drainpipe, and overflow valve and water pump are each attached in rack；It further include electromagnetism position-limit mechanism, electromagnetism position-limit mechanism includes mutually exclusive electromagnet and limit magnet, one in electromagnet and limit magnet is fixed on piston lower surface, another is fixed on the rack, and it is located above mold, formed punch runs through the electromagnet being located above mold or limit magnet, and can be with respect to its sliding.This programme can be with the carbon brush of the intracavitary compression moulding of pushing out type, and temperature in mold is avoided to rise.
Description
Technical field
The present invention relates to a kind of molds, and in particular to a kind of carbon brush compacting tool set.
Background technique
Carbon brush is also brush, is widely used in many electrical equipments as a kind of slide contact member.Carbon brush
Material mainly has graphite, soaks rouge graphite, metal (cupric, silver) graphite.Carbon brush is motor, generator or other rotating machineries
The device that energy or signal are transmitted between fixed part and rotating part, generally required in production first by powdered graphite,
After the mixing such as metal plus coagulator suppresses coarse-blank, and in pressing process, carbon brush can generate heat, and make the temperature of mold, carbon brush and formed punch
Carbon brush is easy to stick together with mold and formed punch etc. after degree increases, and temperature rises, and mold is also easily deformed；And mold is in high pressure
It can also deform under state.
For the raw material of pressed powder shape, notification number is that the Chinese patent of CN102723654B discloses a kind of band arc voltage system
Carbon brush mold, including mould cylinder is inserted into from mould tube inner chamber lower end, and can be along the undershoot of mould tube inner chamber and the relative motion of mould cylinder
Head, and be inserted into from mould tube inner chamber upper end with the matching used upper punch of mould tube inner chamber, form in low punch top end surface
Space in mould cylinder is divided at least one carbon brush type chamber, and the composition carbon brush type of convex block by convex block, the convex block being inserted into mould cylinder
Outwardly convex R arc is set on the side wall of chamber, and R arc is consistent with required carbon brush side R arc, the number of upper punch and the number of type chamber
Mesh is consistent.In compacting, convex block is inserted into mould cylinder, and mould cylinder is divided into carbon brush type chamber, raw material is put into carbon brush type intracavitary, upper undershoot
Head is suppressed the intracavitary raw material of carbon brush type is located at.
Although this carbon brush grinding tool can suppress raw material, due to being not provided with cooling device outside mold, press
The heat generated during system can not scatter and disappear, and can reduce the quality of the carbon brush of compacting and shorten the service life of mold.Secondly,
After the completion of compacting, molding carbon brush is still embedded in that carbon brush type is intracavitary to be difficult to take out.
Summary of the invention
The purpose of the present invention is to provide a kind of pair of carbon brush and formed punch carry out it is cooling and can the intracavitary compression moulding of pushing out type
The mold of carbon brush, to extend the service life of mold and formed punch, quickly remove the carbon brush in mold.
In order to achieve the above objectives, the technical scheme is that convenient for take out carbon brush mold, including rack, mold and
Formed punch, mold are fixed on the rack, and formed punch is located above mold；The piston that can be slided along mould side wall, mold are equipped in mold
Cooling chamber is equipped in side wall, cooling chamber is connected to the type chamber of mold and connectivity part is located at piston underside；Positioned at the institute of piston underside
It states mold cavity and is connected with overflow valve and water pump in turn, overflow valve is also connected with drainpipe, and overflow valve and water pump are each attached to machine
On frame；It further include electromagnetism position-limit mechanism, electromagnetism position-limit mechanism includes mutually exclusive electromagnet and limit magnet, electromagnet and limit
One in the magnet of position is fixed on piston lower surface, another is fixed on the rack, and is located above mold, and formed punch runs through and is located at
Electromagnet or limit magnet above mold, and can be with respect to its sliding.
When suppressing carbon brush, first set the maximum pressure value of overflow valve, then open water pump and electromagnet, and to cooling chamber and
The intracavitary addition water of type in communication generates repulsive force between electromagnet and limit magnet at this time.Water pump is to positioned at piston underside
The intracavitary water-filling of type, electromagnet and limit the distance between magnet are larger when initial, and repulsive force is smaller, at this time piston itself and
Electromagnet limits and is pressed in intracavitary waterborne of type under the action of the gravity and repulsive force of magnet, due to repulsive force at this time compared with
Small, piston is smaller to the pressure of water, but the intracavitary pressure of type, still less than the setting value of overflow valve, water can continue to flow into from water pump
Type chamber, piston upward sliding.In the process, electromagnet and limit magnet move closer to, and repulsive force is gradually increased, and piston is to type
The pressure of intracavitary water is gradually increased, and the water intracavitary into type is compressed, and the intracavitary pressure of type is gradually increased, and finally reaches overflow valve
When setting value, the water flowed out from the water outlet of water pump is flowed to after overflow valve and is directly discharged from drainpipe, positioned at the type of piston underside
Intracavitary water is not further added by, piston no longer upward sliding.
Then to the intracavitary raw material for being put into compacting carbon brush of the type being located above piston, and keep formed punch downward.Formed punch makes piston
Slide downward, the intracavitary water of type are compressed, and the intracavitary pressure of type increases, after the intracavitary pressure of type is greater than the preset value of overflow valve,
The intracavitary water of type is discharged from drainpipe, so being eventually positioned at the type chamber of piston underside and pressure and overflow valve that cooling is intracavitary
Setting value it is identical.Then move upwards formed punch, since piston is located at mold bottom at this time, repulsive force is minimum at this time, so
Water pump can continue to the intracavitary water-filling of type being located at below piston, and piston upward sliding pushes up carbon brush.It is upward in piston
During sliding, repulsive force is gradually increased, and last piston is in the gravity of itself and electromagnet or limit magnet, Yi Jipai
The pressure for making type intracavitary under the action of repulsion keeps equal with the setting value of overflow valve, and piston is in equilibrium state.In entire mistake
Cheng Zhong, the type of the mold below cool down chamber and piston is intracavitary all to fill water, and water is contacted with mould side wall, is generated in pressing process
Heat be first transmitted on mould side wall, then the intracavitary water of being cooled down absorbs, and the temperature of mold, formed punch and carbon brush is avoided to increase.
Carbon brush is finally taken out, starts to suppress next time；Closing outflow valve and water pump after production.
This programme have the beneficial effect that (one) overflow valve be located at piston underside type chamber be connected to, can keep cooling chamber with
The pressure of type chamber in communication, when formed punch moves upwards, piston reduces the downward pressure of water, and water pump can be to type chamber
It is inside filled with water, makes piston upward sliding, so that the carbon brush of compression moulding is released, convenient for the taking-up of carbon brush.
(2) in piston upward sliding, since electromagnet or limit magnet are fixed on piston lower surface, so electromagnetism
The distance between iron and limit magnet shorten, and repulsive force increases, so piston increases the pressure for entering the intracavitary water of type, type chamber
Interior water is increased by compression degree, and the intracavitary pressure of type increases, and the intracavitary pressure of type is in the setting value for reaching overflow valve, water pump
It can not continue to the intracavitary water-filling of type, so piston will not continue to rise, therefore piston will not be deviate from out of mold.
(3) when formed punch moves upwards, water pump can be to the intracavitary water-filling of type being located at below piston, the type of water inflow at this time
Intracavitary, the water of inflow can be intracavitary into cooling down, and forms water flow in cooling chamber, since the water of inflow does not absorb heat, thus it is warm
Spend it is lower, the lower water of temperature enter cooling it is intracavitary after with absorb heat after the raised water of temperature mix, make to cool down intracavitary
The temperature of water reduces, and it is more preferable that more heat cooling effects can be absorbed.
(4) when formed punch is pressed downward piston, overflow valve can be to avoid the type chamber being located at below piston and the intracavitary pressure that cools down
Height of continuing rising is insisted on, then avoids mold in the raw deformation of internal elevated pressure, further extends the service life of mold.
Preferred embodiment one, as the further improvement to base case, electromagnet is ring-type, and is fixed on the rack；Limit
Position magnet is fixed on piston lower surface.Electromagnet is located at outside mold, more convenient when turning on or off.
Preferred embodiment two is fixed with water tank as the further improvement to preferred embodiment one in rack, drainpipe is separate
Overflow valve one end is connected to water tank, and the water inlet end of water pump is connected to water tank.The water flowed out from type chamber flows into water tank and is received
Collection, water pump can continue to reduce the water extraction in water tank in this way, water can recycle at water tank, type chamber and water pump
The waste of water, can reduce also more environmentally-friendly while cost.
Preferred embodiment three, as the further improvement to preferred embodiment two, mold cavity bottom is further fixed on multiple supports
Column, the height of support column are more than or equal to the thickness of limit magnet.When piston slides down to mold bottom under the action of formed punch,
Support column is against piston lower surface, can then avoid limit magnet to avoid the limit magnet stress for being fixed on piston lower surface
It is damaged.Secondly, support column can also play the role of support to piston, piston is avoided to deform under the action of formed punch,
It is even cracked, extend the service life of piston.
Preferred embodiment four, as the further improvement to preferred embodiment three, formed punch lower end is fixed with diameter and is greater than punching
The platen of head.When compacting, platen is pressed on raw material, and the diameter of formed punch is less than the diameter of platen at this time, so being located at formed punch periphery
Electromagnet on hole can reduce, to increase the area of electromagnet, and then increase the repulsive force between limit magnet.
Preferred embodiment five is fixed with blower, the outlet air end of blower as the further improvement to preferred embodiment four in rack
It is connected with blower, blower is far from blower one end towards mold.After production, blower is opened, from blower far from blower one end
The wind of blowout can blow off the powder fallen on mold, can clean to mold.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Specific embodiment
Appended drawing reference are as follows: rack 1, mold 2, piston 21, support column 22, cooling chamber 23, opening 24, formed punch 3, platen 31,
Electromagnet 41, limit magnet 42, water tank 5, water pump 6, overflow valve 7, drainpipe 71.
As shown in Figure 1, convenient for the carbon brush mold taken out, including rack 1, mold 2, cylindrical formed punch 3 and electromagnetism limit
Mechanism is welded with stamping cylinder and hydraulic pump in rack 1, and hydraulic pump is connected to stamping cylinder, 21 following table of piston of stamping cylinder
Face and the upper end end of formed punch 3 are welded.3 lower end of formed punch is less than platen 31 integrally formed with platen 31, the diameter of formed punch 3
Diameter, mold 2 are welded in rack 1, and mold 2 is located at 3 lower section of formed punch.Being equipped in mold 2 can be along the piston of 2 side walls of mold
21, for 2 bottom of mold integrally formed with four support columns 22,2 side wall of mold is interior to be equipped with cooling chamber 23, cools down between chamber 23 and type chamber
Sidewall bottom be equipped with opening 24, opening 24 is located at the lower section of piston 21, and cooling chamber 23 is connected to by opening 24 with type chamber.Electromagnetism limit
Position mechanism includes mutually exclusive electromagnet 41 and limit magnet 42, and limit magnet 42 is glued to 21 lower surface of piston, support column
22 height is 1cm bigger than the thickness for limiting magnet 42；Electromagnet 41 is glued in rack 1, and is located at 2 top of mold, electromagnet
41 is annular in shape, and formed punch 3 is located in the hole among electromagnet 41, and can the sliding of opposed electromagnets 41.It is welded with blower in rack 1,
The outlet air end of blower is connected with blower, and blower right end is towards mold 2.Overflow valve 7, water pump 6 and storage are also welded in rack 1
Water tank 5, the type chamber positioned at 21 downside of piston are connected to by plastic tube with overflow valve 7, and water pump 6 passes through another plastic tube and overflow valve
7 connections, overflow valve 7 are connected with drainpipe 71, and 5 upper portion side wall of water tank is run through in 71 upper end of drainpipe, and is glued with water tank 5,
And the plastic tube runs through the side wall of 5 upper end of water tank, water tank 5 is connected to by another plastic tube with the water inlet end of water pump 6.
When suppressing carbon brush, the maximum pressure value of overflow valve 7 is first set, then opens water pump 6 and electromagnet 41, and to cooling
Chamber 23 and the intracavitary addition water of type in communication generate repulsive force between electromagnet 41 and limit magnet 42 at this time.Water pump 6 will store up
Water in water tank 5 be pumped into be located at 21 downside of piston type it is intracavitary, when initial, the distance between electromagnet 41 and limit magnet 42 compared with
Greatly, repulsive force is smaller, and it is intracavitary to be pressed in type under the action of the gravity and repulsive force of itself and limit magnet 42 for piston 21 at this time
It is waterborne, since repulsive force is smaller at this time, piston 21 is smaller to the pressure of water, the intracavitary pressure of the intracavitary pressure-type of type still less than
The setting value of overflow valve 7, water can continue from 6 inflow type chamber of water pump, 21 upward sliding of piston.In the process, electromagnet and
Limit magnet 42 moves closer to, and repulsive force is gradually increased, and piston 21 is gradually increased the pressure of the intracavitary water of type, intracavitary into type
Water is compressed, and the intracavitary pressure of type is gradually increased, and when finally reaching the setting value of overflow valve 7, is flowed out from the water outlet of water pump 6
Water is flowed to after overflow valve 7 and is directly discharged from drainpipe 71, is flowed into water tank 5, and the intracavitary water of the type positioned at 21 downside of piston is not
It is further added by, the no longer upward sliding of piston 21.
Then to the intracavitary raw material for being put into compacting carbon brush of the type being located above piston 21, and move downward formed punch 3, platen
31 are pressed on raw material, and make 21 slide downward of piston.The intracavitary water of type is compressed, and the intracavitary pressure of type increases, the intracavitary pressure of type
After power is greater than the preset value of overflow valve 7, the intracavitary water of type is discharged from drainpipe 71, so pressure and overflow that most rear profile is intracavitary
The setting value of valve 7 is identical.Then move upwards formed punch 3, piston 21 is no longer influenced by the downward pressure of platen 31, due to living at this time
Plug 21 is located at 2 bottom of mold, and repulsive force is minimum at this time, so water pump 6 can continue to fill to the type for being located at 21 lower section of piston is intracavitary
Water, 21 upward sliding of piston, carbon brush is pushed up.During 21 upward sliding of piston, repulsive force is gradually increased, finally
The pressure that piston 21 keeps type intracavitary under the action of the gravity and repulsive force of itself and limit magnet 42 is kept and overflow valve 7
Setting value it is equal, piston 21 is in equilibrium state.In the whole process, the type of the mold 2 of 21 lower section of cooling chamber 23 and piston
Intracavitary all to fill water, water is contacted with 2 side wall of mold, and the heat generated in pressing process is first transmitted on 2 side wall of mold, then by
The water to cool down in chamber 23 absorbs, and the temperature of mold 2, formed punch 3 and carbon brush is avoided to increase, and the temperature of mold 2 and carbon brush is avoided to rise.
Carbon brush is finally taken out, starts to suppress next time；Closing outflow valve 7 and water pump 6 after production, open blower, and blower is by mold 2
The powder of upper attachment blows off, and cleans to mold 2.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the inventive concept of the premise, several modifications and improvements can also be made, these also should be considered as guarantor of the invention
Range is protected, these all will not influence the effect and patent practicability that the present invention is implemented.The present invention omits the technology of description, shape
Shape, construction portion are well-known technique.
Claims (6)
1. convenient for the carbon brush mold taken out, including rack, mold and formed punch, the mold are fixed on the rack, the formed punch position
Above mold；It is characterized in that, being equipped with the piston that can be slided along mould side wall in the mold, it is equipped in the mould side wall
Cool down chamber, and the cooling chamber is connected to the type chamber of mold and connectivity part is located at piston underside；Positioned at the type of the mold of piston underside
Chamber is connected with overflow valve and water pump in turn, and the overflow valve is also connected with drainpipe, and the overflow valve and water pump are each attached to machine
On frame；It further include electromagnetism position-limit mechanism, the electromagnetism position-limit mechanism includes mutually exclusive electromagnet and limit magnet, the electricity
One in magnet and limit magnet is fixed on piston lower surface, another is fixed on the rack, and is located above mold, described
Formed punch runs through the electromagnet being located above mold or limit magnet, and can be with respect to its sliding.
2. the carbon brush mold according to claim 1 convenient for taking out, which is characterized in that the electromagnet is ring-type, and solid
Determine on the rack；The limit magnet is fixed on piston lower surface.
3. the carbon brush mold according to claim 2 convenient for taking out, which is characterized in that be fixed with water storage in the rack
Case, the drainpipe are connected to far from overflow valve one end with water tank, and the water inlet end of the water pump is connected to water tank.
4. the carbon brush mold according to claim 3 convenient for taking out, which is characterized in that the cavity bottom of the mold is also solid
Surely there are multiple support columns, the height of the support column is more than or equal to the thickness of limit magnet.
5. the carbon brush mold according to claim 4 convenient for taking out, which is characterized in that the formed punch lower end is fixed with
Diameter is greater than the platen of formed punch.
6. the carbon brush mold according to claim 5 convenient for taking out, which is characterized in that it is fixed with blower in the rack,
The outlet air end of the blower is connected with blower, and the blower is far from blower one end towards mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757486.7A CN107346856B (en) | 2017-08-29 | 2017-08-29 | Convenient for the carbon brush mold of taking-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757486.7A CN107346856B (en) | 2017-08-29 | 2017-08-29 | Convenient for the carbon brush mold of taking-up |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107346856A CN107346856A (en) | 2017-11-14 |
| CN107346856B true CN107346856B (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710757486.7A Active CN107346856B (en) | 2017-08-29 | 2017-08-29 | Convenient for the carbon brush mold of taking-up |
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| CN (1) | CN107346856B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108418077B (en) * | 2018-04-26 | 2023-10-13 | 大同新成新材料股份有限公司 | Graphene electric brush preparation device and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576476B (en) * | 2015-12-21 | 2018-07-03 | 北京兴华机械厂 | A kind of wind-power slip ring brush assembly of electric integral forming device |
| CN205834222U (en) * | 2016-06-06 | 2016-12-28 | 东阳市龙泽磁电有限公司 | A kind of mould being applicable to Magnet molding |
| CN106425299B (en) * | 2016-10-31 | 2018-06-19 | 宣城军焊焊接科技有限公司 | Aluminium oxide P-type electrode cap processing technology |
| CN206263053U (en) * | 2016-11-30 | 2017-06-20 | 重庆宜居门业有限公司 | Decorating board extrusion forming device |
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| Publication number | Publication date |
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| CN107346856A (en) | 2017-11-14 |
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