CN101355222A - Method for pressed forming multilayer electrical brush - Google Patents
Method for pressed forming multilayer electrical brush Download PDFInfo
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- CN101355222A CN101355222A CNA2008102112491A CN200810211249A CN101355222A CN 101355222 A CN101355222 A CN 101355222A CN A2008102112491 A CNA2008102112491 A CN A2008102112491A CN 200810211249 A CN200810211249 A CN 200810211249A CN 101355222 A CN101355222 A CN 101355222A
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Abstract
The invention provides a press-molding method for multilayer electric brushes. The method is characterized by comprising the following: (1) a step of packing materials, i.e. a material pushing machine is used for orderly pushing raw materials needed for forming every layer of an electric brush into a die cavity of a female die; the material pushing machine clings to a plane where an inlet of the die cavity is to move, so as to ensure that every raw material after packing is level with the plane where the inlet of the die cavity is; a lower punch capable of moving up and down relative to the die cavity is arranged in the die cavity; the quality of every raw material pushed into the die cavity by the material pushing machine is controlled through the distance that the upper end face of the lower punch moves relative to the plane where the inlet of the die cavity is; and (2) a step of pressing, i.e. an upper punch arranged above the female die moves downwards so as to press-mold the raw materials in the die cavity. The press-molding method for multilayer electric brushes can realize continuous, precise and repeated feed.
Description
Technical field
The present invention relates to a kind of manufacture method of multilayer electrical brush.A kind of briquetting process of multilayer electrical brush specifically.
Background technology
Traditional brush compression molding forming machine adopts hand feed to fill out powder, inconvenient operation, and labour intensity is big, and production efficiency is low, can not satisfy the needs of the large-scale production of brush.Chinese patent literature CN2797021Y discloses the horizontal compression molding Full Automatic Liquid of a kind of brush press charging gear, has adopted mechanical automatic feeder, has improved production efficiency.But, above-mentioned press is not suitable for being applied to the manufacturing of multilayer electrical brush, because constituting the composition of each layer of multilayer electrical brush needed raw material has nothing in common with each other, in the manufacture process of multilayer electrical brush, the raw material that needs in mould, to insert respectively variety classes, different quality before the brush body compression moulding of brush, promptly continuously, repeatedly charging.Chinese patent literature CN1639925A discloses a kind of method of making multilayer electrical brush, carbon brush wherein is made up of the conducting function layer of two material with carbon elements and the insulating barrier of at least one electrical insulating material at least, insulating barrier is distributed between the continuous functional layer, material with carbon element or as the contained this material of filler and electrical insulating material by respective sequence on the layer of the multilayer electrical brush that will make distributes, layering is respectively with in the Powdered adding mould, then extruding and with after-baking.But, further not open method that each material adopted and the concrete step of in mould, not packing in specification, and the method for prior art can not realize the continuous adding of variety classes material.
Summary of the invention
For this reason, technical problem to be solved by this invention be to provide a kind of and can realize continuously, accurately, the method for pressed forming multilayer electrical brush of charging repeatedly.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions: a kind of method for pressed forming multilayer electrical brush may further comprise the steps:
1. filler step: use pusher to push the required raw material of each layer that constitutes brush successively in the die cavity of die, described pusher is close to the plane motion of mold cavity inlet place, makes after every kind of raw material filler concordant with plane, described mold cavity inlet place; Be provided with the low punch that can move up and down with respect to described die cavity in the described die cavity, control the quality that described pusher pushes every kind of raw material in the described die cavity by the distance that move with respect to plane, described mold cavity inlet place the upper surface of described low punch;
2. pressing step: the upper punch that is arranged at described die top moves down the raw material compression moulding in the described die cavity.
Above-mentioned method for pressed forming multilayer electrical brush, every kind of raw material pushes the required raw material of each layer that constitutes brush successively in the die cavity of described die by a described pusher.
Above-mentioned method for pressed forming multilayer electrical brush, described pusher has a plurality of storage devices, and each described storage device loads and constitutes the wherein required raw material of one deck of brush, pushes two or more raw materials successively by a described pusher in the die cavity of described die.
Above-mentioned method for pressed forming multilayer electrical brush, described pusher are 1-6.
Above-mentioned method for pressed forming multilayer electrical brush, described pusher are 2,3 or 4.
Above-mentioned method for pressed forming multilayer electrical brush, described upper punch is provided with wire guide, in pressing step, pass in the raw material of lead in described upper punch moves down and insert described die cavity of described wire guide, with the raw material one compression moulding in the described die cavity.
Technique scheme of the present invention has the following advantages compared to existing technology: (1) method for pressed forming multilayer electrical brush of the present invention uses pusher to push the required raw material of each layer that constitutes brush successively in the filler step in the die cavity of die, described pusher is close to the plane motion of mold cavity inlet place, make every kind of raw material filler afterwards concordant with plane, described mold cavity inlet place, be provided with the low punch that can move up and down with respect to described die cavity in the described die cavity, control the quality that described pusher pushes every kind of raw material in the described die cavity by the distance that move with respect to plane, described mold cavity inlet place the upper surface of described low punch; According to the order of charging and the quality that need insert every kind of raw material, calculate described low punch and need mobile successively distance with respect to plane, described mold cavity inlet place, make low punch move corresponding distance successively then with respect to plane, described mold cavity inlet place, pusher is inserted in described die cavity successively and is constituted the needed raw material of each layer of multilayer electrical brush, thereby fill the space of the upper surface process of low punch described in the process that low punch moves at every turn successively, therefore realized in described die cavity continuously, accurately, the purpose of charging repeatedly; Described pusher is close to the place plane motion of described mold cavity inlet, makes every kind of raw material filler afterwards concordant with plane, described mold cavity inlet place; Make on the one hand and insert the redundance on the described die of being positioned at that in time cleans out top, plane, described mold cavity inlet place after every kind of raw material, avoid influencing pusher and insert raw material to described die cavity next time, guarantee not take place when insert raw material next time batch mixing simultaneously; Also guarantee on the other hand to be arranged in parallel between later adjacent layer of brush compression moulding and the layer.(2) every kind of raw material pushes the required raw material of each layer that constitutes brush successively in the die cavity of described die by a described pusher, relatively simple for structure, the production of described pusher design than being easier to, for making the more brush of the number of plies, can realize accurately charging continuously by the quantity that increases pusher; Described pusher has a plurality of storage devices, each described storage device loads and constitutes the wherein required raw material of one deck of brush, in the die cavity of described die, push two or more raw materials successively by a described pusher, therefore for the brush of making the identical number of plies, can utilize less pusher continuously, filler in described die cavity repeatedly, simplify production equipment; In the time of, three layer or four layer brush two-layer, preferably use one, two or three pushers when producing; When producing four layers the time with power up brush, the preferred pusher that uses 2-6, for example use two, three, four or five pushers, for the brush of producing the identical number of plies, use less pusher 1 can simplify production equipment, space when avoiding pusher 1 too many around the die 2 is limited, design difficulty relatively, and more pusher 1 also is not easy control.(3) described upper punch is provided with wire guide, in pressing step, passes in the raw material of lead in described upper punch moves down and insert described die cavity of described wire guide, with the raw material one compression moulding in the described die cavity; The compacting of lead and powder is connected in pressing process, improves the pull strength that is connected of lead and brush body, and it is long more that the resistance that is connected of reduction lead and brush body, described lead and brush body are suppressed the part that is connected, lead and brush body to be connected pull strength big more.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the initial condition schematic diagram of multilayer electrical brush production equipment;
Fig. 2 is that the low punch of multilayer electrical brush production equipment shown in Figure 1 moves down schematic diagram;
Fig. 3 is the first pusher filler schematic diagram after low punch shown in Figure 2 stops;
Fig. 4 is returning and schematic diagram that low punch moves down behind the first pusher filler shown in Figure 3;
Fig. 5 is the second pusher filler schematic diagram after low punch shown in Figure 4 stops;
Fig. 6 is returning and schematic diagram that low punch moves down behind the second pusher filler shown in Figure 5;
Fig. 7 is the 3rd a pusher filler schematic diagram after low punch shown in Figure 6 stops;
Fig. 8 is the compression moulding schematic diagram after filler shown in Figure 7 finishes;
Fig. 9 is the another kind of initial condition schematic diagram of multilayer electrical brush production equipment;
Figure 10 is low punch shown in Figure 9 pusher schematic diagram of filler for the first time when moving down;
Figure 11 is low punch shown in Figure 10 pusher schematic diagram of filler for the second time when moving down;
Figure 12 is the compression moulding schematic diagram after pusher shown in Figure 11 is return;
Figure 13 is the another kind of initial condition schematic diagram of multilayer electrical brush production equipment;
Figure 14 is low punch shown in Figure 13 first pusher schematic diagram of filler for the first time when moving down;
Figure 15 is low punch shown in Figure 14 first pusher schematic diagram of filler for the second time when moving down;
Figure 16 is the schematic diagram of low punch shown in Figure 15 second pusher filler when moving down;
Figure 17 is the compression moulding schematic diagram after filler shown in Figure 16 finishes.
Reference numeral is expressed as among the figure: 1-pusher, 11-first pusher, 12-second pusher, 13-the 3rd pusher, 2-die, the 21-die cavity, plane, 210-mold cavity inlet place, 3-low punch, 31-upper surface, the 4-upper punch, 5-lead, 61-first storage device, 62-second storage device.
Embodiment
As Fig. 1-shown in Figure 8, present embodiment is fabricated to example explanation method for pressed forming multilayer electrical brush of the present invention with three layers of brush.As shown in Figure 1, first pusher 11, second pusher 12, the 3rd pusher 13, die 2, be positioned at described die 2 die cavity 21 low punch 3 and be positioned at the upper punch 4 that described die 2 tops are provided with wire guide, the lead 5 that passes described wire guide all is in initial condition, wherein, the upper surface 31 of described low punch 3 is in same plane with the plane, mold cavity inlet place 210 of described die 2.As shown in Figure 2, insert as required first kind of raw material the described low punch 3 of Mass Calculation upper surface 31 with respect to plane, described mold cavity inlet place 210 need move down apart from s1, the quality of promptly inserting first kind of raw material by the upper surface 31 of described low punch 3 with respect to plane, described mold cavity inlet place 210 need move down apart from s1 control, described low punch 3 is moved down apart from s1 with respect to plane, described mold cavity inlet place 210; As shown in Figure 3, first pusher 11 is inserted first kind of raw material and is stopped filler when concordant with the plane, mold cavity inlet place 210 of described die 2 in die cavity 21, and first pusher 11 is return subsequently.As shown in Figure 4, insert as required second kind of raw material the described low punch 3 of Mass Calculation upper surface 31 with respect to plane, described mold cavity inlet place 210 need move down apart from s2, described low punch 3 is moved down apart from s2 with respect to plane, described mold cavity inlet place 210, the quality of promptly inserting second kind of raw material by the upper surface 31 of described low punch 3 with respect to plane, described mold cavity inlet place 210 need move down apart from s 2 controls; As shown in Figure 5, second pusher 12 is inserted second kind of raw material and is stopped filler when concordant with the plane, mold cavity inlet place 210 of described die 2 in die cavity 21, and second pusher 12 is return subsequently.As shown in Figure 6, insert as required the third raw material the described low punch 3 of Mass Calculation upper surface 31 with respect to plane, described mold cavity inlet place 210 need move down apart from s3, described low punch 3 is moved down apart from s3 with respect to plane, described mold cavity inlet place 210, the quality of promptly inserting the third raw material by the upper surface 31 of described low punch 3 with respect to controlling that plane, described mold cavity inlet place 210 need move down apart from s3; As shown in Figure 7, the 3rd pusher 13 is inserted the third raw material and is stopped filler when concordant with the plane, mold cavity inlet place 210 of described die 2 in die cavity 21, and the 3rd pusher 13 is return subsequently.So far, the filler step finishes.As shown in Figure 8, upper punch 4 presses down, and lead 5 moves down in the raw material that inserts in the described die cavity 21 with described upper punch 4 simultaneously.At last, under the acting in conjunction of upper punch 4 and low punch 3,, cut off lead 5 with scissors subsequently each layer raw material and the lead 5 one compression mouldings in the described die cavity 21, low punch 3 moves up, ejects three layers of brush of compression moulding, begins to carry out the compacting of next brush.
Method for pressed forming multilayer electrical brush of the present invention uses pusher 1 to push the required raw material of each layer that constitutes brush successively in the filler step in the die cavity 21 of die 2, described pusher 1 is close to 210 motions of plane, mold cavity inlet place, make every kind of raw material filler afterwards concordant with plane 210, described mold cavity inlet place, be provided with the low punch 3 that can move up and down with respect to described die cavity 21 in the described die cavity 21, control the quality that described pusher 1 pushes every kind of raw material in the described die cavity 21 by the distance that move with respect to plane, described mold cavity inlet place 210 upper surface 31 of described low punch 3; According to the order of charging and the quality that need insert every kind of raw material, calculate described low punch 3 and need mobile successively distance with respect to plane, described mold cavity inlet place 210, make low punch 3 move corresponding distance successively then with respect to plane, described mold cavity inlet place 210, pusher 1 is filler in described die cavity 21 successively, thereby fills the space of upper surface 31 processes of low punch 3 described in low punch 3 each processes that move successively; Described pusher 1 is close to 210 motions of plane, described mold cavity inlet place, makes every kind of raw material filler afterwards concordant with plane 210, described mold cavity inlet place; Make on the one hand and insert the redundance on the described die 2 of being positioned at that in time cleans out 210 tops, plane, described mold cavity inlet place after every kind of raw material, avoid influencing pusher 1 and insert raw material to described die cavity 21 next time, guarantee simultaneously to insert next time raw material the time batch mixing do not take place; Also guarantee on the other hand to be arranged in parallel between later adjacent layer of brush compression moulding and the layer.Therefore realized in described die cavity 21 continuously, accurately, the purpose of charging repeatedly.Method for pressed forming multilayer electrical brush of the present invention can realize that accurately control inserts the quality of each material in the die cavity, reach continuously, accurately, the purpose of charging repeatedly.Every kind of raw material pushes the required raw material of each layer that constitutes brush successively in the die cavity 21 of described die 2 by a described pusher 1, relatively simple for structure, the production of described pusher 1 design than being easier to, say for making the more brush of the number of plies, can realize accurately charging continuously by the quantity that increases pusher 1.In addition, described upper punch 4 is provided with wire guide, in pressing step, passes in the raw material of lead 5 in described upper punch 4 moves down and insert described die cavity 21 of described wire guide; Raw material one compression moulding in pressing process in lead 5 and the described die cavity 21, improve the pull strength that is connected of lead 5 and brush body, reduce the resistance that is connected of lead 5 and brush body, it is long more that described lead 5 and brush body are suppressed the part that is connected, lead 5 and brush body to be connected pull strength big more.
As Fig. 9-shown in Figure 12, present embodiment is fabricated to example explanation method for pressed forming multilayer electrical brush of the present invention with two-layer brush.As shown in Figure 9, each device is in initial condition, pusher 1 in the present embodiment has first storage device 61 and second storage device 62, described first storage device 61 loads different raw materials respectively with second storage device 62, and the upper surface 31 of described low punch 3 is in same plane with the plane, mold cavity inlet place 210 of described die 2.As shown in figure 10, the described low punch 3 of Mass Calculation of inserting first kind of raw material at first as required with respect to plane, described mold cavity inlet place 210 move down apart from s1, the quality of promptly inserting first kind of raw material by the upper surface 31 of described low punch 3 with respect to controlling that plane, described mold cavity inlet place 210 need move down apart from s1; First storage device 61 of described pusher 1 was inserted first kind of raw material when described then low punch 3 moved down apart from s1 with respect to plane, described mold cavity inlet place 210 in described die cavity 21, and made described die cavity 21 interior first kind of raw material concordant with the plane 210, mold cavity inlet place of described die 2.As shown in figure 11, the described low punch 3 of Mass Calculation of inserting second kind of raw material as required with respect to plane, described mold cavity inlet place 210 move down apart from s2, the quality of promptly inserting second kind of raw material by the upper surface 31 of described low punch 3 with respect to controlling that plane, described mold cavity inlet place 210 need move down apart from s2, second storage device 62 of described pusher 1 was inserted second kind of raw material when described low punch 3 moved down apart from s2 with respect to plane, described mold cavity inlet place 210 in described die cavity 21, and making described die cavity 21 interior second kind of raw material concordant with the plane 210, mold cavity inlet place of described die 2, pusher 1 is return subsequently.So far, the filler step finishes.As shown in figure 12, upper punch 4 presses down, and lead 5 moves down in the material that inserts in the described die cavity 21 with described upper punch 4 simultaneously.At last, under the acting in conjunction of upper punch 4 and low punch 3, each layer raw material and lead 5 one compression mouldings in the described die cavity 21, scissors is cut off lead subsequently, low punch 3 moves up, ejects the two-layer brush of compression moulding, begins to carry out the compacting of next brush.
On the one hand, method for pressed forming multilayer electrical brush of the present invention can realize that accurately control inserts the quality of each material in the die cavity, reach continuously, accurately, the purpose of charging repeatedly; On the other hand, described pusher 1 has a plurality of storage devices, each described storage device loads and constitutes the wherein required raw material of one deck of brush, first storage device 61 and second storage device 62 by a described pusher 1 push two kinds raw material successively in the die cavity 21 of described die 2, therefore for the brush of making the identical number of plies, can utilize less pusher 1 continuous several times filler in described die cavity 21, simplify production equipment; Utilize in the present embodiment a pusher 1 double in described die cavity 21 filler, and moving of the filler of described pusher 1 and described low punch 3 carry out simultaneously, saves the filler time, helps the raising of production efficiency.In other embodiment, also can increase the storage device of each described pusher 1, in the die cavity 21 of described die 2, push two or more raw materials by a described pusher 1 successively, use less pusher 1 to produce multilayer electrical brush, thereby reach the purpose of simplifying production equipment.
As Figure 13-shown in Figure 17, present embodiment is fabricated to example explanation method for pressed forming multilayer electrical brush of the present invention with three layers of brush.As shown in figure 13, each device is in initial condition, two pushers 1 are arranged, first pusher 11 has first storage device 61 and second storage device 62, described first storage device 61 loads different raw materials respectively with second storage device 62, second pusher 12 has loaded a kind of raw material, and the upper surface 31 of described low punch 3 is in same plane with the plane, mold cavity inlet place 210 of described die 2.As shown in figure 14, the described low punch 3 of Mass Calculation of inserting first kind of raw material at first as required with respect to plane, described mold cavity inlet place 210 need move down apart from s1, the quality of promptly inserting first kind of raw material by the upper surface 31 of described low punch 3 with respect to controlling that plane, described mold cavity inlet place 210 need move down apart from s1; Described low punch 3 is moved down apart from s1 with respect to plane, described mold cavity inlet place 210, simultaneously first storage device 61 of first pusher 11 is inserted first kind of raw material in described die cavity 21, stops filler when concordant with the plane, mold cavity inlet place 210 of described die 2; The described low punch 3 of Mass Calculation of inserting second kind of raw material as required with respect to plane, described mold cavity inlet place 210 need move down apart from s2, the quality of promptly inserting second kind of raw material by the upper surface 31 of described low punch 3 with respect to controlling that plane, described mold cavity inlet place 210 need move down apart from s2; As shown in figure 15, second storage device 62 of described first pusher 11 was inserted second kind of raw material when described low punch 3 moved down apart from s2 with respect to plane, described mold cavity inlet place 210 in described die cavity 21, and making described die cavity 21 interior second kind of raw material concordant with the plane 210, mold cavity inlet place of described die 2, first pusher 11 is return subsequently.The described low punch 3 of Mass Calculation of inserting the third material as required with respect to plane, described mold cavity inlet place 210 move down apart from s3, the quality of promptly inserting the third raw material by the upper surface 31 of described low punch 3 with respect to controlling that plane, described mold cavity inlet place 210 need move down apart from s3; As shown in figure 16, described low punch 3 moves down apart from s3 with respect to plane, described mold cavity inlet place 210, described second pusher 12 is inserted the third raw material in described die cavity 21 simultaneously, and making described die cavity 21 interior the third raw materials concordant with the plane 210, mold cavity inlet place of described die 2, second pusher 12 is return subsequently.So far, the filler step finishes.As shown in figure 17, upper punch 4 presses down, and lead 5 moves down in the material that inserts in the described die cavity 21 with described upper punch 4 simultaneously.At last, under the acting in conjunction of upper punch 4 and low punch 3, each layer raw material and lead 5 one compression mouldings in the described die cavity 21, scissors is cut off lead subsequently, low punch 3 moves up, ejects three layers of brush of compression moulding, begins to carry out the compacting of next brush.
The filling method of present embodiment can realize continuously equally, accurately, repeatedly charging.Because first pusher 11 has two storage devices and loads different raw materials respectively, the comparative example 1, reduced the use of a pusher 1, simplifies production equipment.In other some embodiment, according to the needs of making different number of plies brushes and the cost of production equipment, the quantity of described pusher 1 can be for pushing any number of the raw material type number in the described die cavity 21 greater than 1, less than needs, the required raw material of each layer that promptly constitutes brush is loaded in the independent described pusher 1, and pushes in the die cavity 21 of described die 2 successively.In the time of, three layer or four layer brush two-layer, preferably use one, two or three pushers when producing; When producing four layers the time with power up brush, preferably use 2-6 pusher, for example use two, three, four or five pushers.For the brush of producing the identical number of plies, use less pusher 1 can simplify production equipment, space when avoiding pusher 1 too many around the die 2 is limited, production efficiency is lower, the global design of production equipment difficulty relatively, and more pusher 1 also is not easy control.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the invention.
Claims (6)
1. a method for pressed forming multilayer electrical brush is characterized in that, may further comprise the steps:
1. filler step: use pusher (1) in the die cavity (21) of die (2), to push the required raw material of each layer that constitutes brush successively, described pusher (1) is close to plane, mold cavity inlet place (210) motion, makes every kind of raw material filler afterwards concordant with plane, described mold cavity inlet place (210); Be provided with the low punch (3) that can move up and down with respect to described die cavity (21) in the described die cavity (21), control the quality that described pusher (1) pushes every kind of raw material in the described die cavity (21) by the distance that the upper surface (31) of described low punch (3) is mobile with respect to plane, described mold cavity inlet place (210);
2. pressing step: the upper punch (4) that is arranged at described die (2) top moves down the raw material compression moulding in the described die cavity (21).
2. according to the described method for pressed forming multilayer electrical brush of claim 1, it is characterized in that the required raw material of each layer that constitutes brush is loaded in the independent described pusher (1), and pushes successively in the die cavity (21) of described die (2).
3. according to the described method for pressed forming multilayer electrical brush of claim 1, it is characterized in that, described pusher (1) has a plurality of storage devices, each described storage device loads and constitutes the wherein required raw material of one deck of brush, pushes two or more raw materials by a described pusher (1) successively in the die cavity (21) of described die (2).
4. according to the arbitrary described method for pressed forming multilayer electrical brush of claim 1-3, it is characterized in that described pusher (1) is 1-6.
5. according to the described method for pressed forming multilayer electrical brush of claim 4, it is characterized in that described pusher (1) is 2,3 or 4.
6. according to the described method for pressed forming multilayer electrical brush of claim 6, it is characterized in that, described upper punch (4) is provided with wire guide, in pressing step, pass in the raw material of lead (5) in described upper punch (4) moves down and insert described die cavity (21) of described wire guide, with the raw material one compression moulding in the described die cavity (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102112491A CN101355222B (en) | 2008-09-19 | 2008-09-19 | Method for pressed forming multilayer electrical brush |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102112491A CN101355222B (en) | 2008-09-19 | 2008-09-19 | Method for pressed forming multilayer electrical brush |
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| CN101355222A true CN101355222A (en) | 2009-01-28 |
| CN101355222B CN101355222B (en) | 2010-04-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723654A (en) * | 2012-05-29 | 2012-10-10 | 神奇电碳集团有限公司 | Brush mold with arc pressing function |
| CN102873325A (en) * | 2012-09-13 | 2013-01-16 | 宁波科田磁业有限公司 | Method for feeding neodymium iron boron magnetic powder into die for pressing in layered mode |
| CN108199245A (en) * | 2018-01-22 | 2018-06-22 | 江苏民威电碳科技有限公司 | A kind of automatic line burying machine of brush |
-
2008
- 2008-09-19 CN CN2008102112491A patent/CN101355222B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723654A (en) * | 2012-05-29 | 2012-10-10 | 神奇电碳集团有限公司 | Brush mold with arc pressing function |
| CN102723654B (en) * | 2012-05-29 | 2015-08-12 | 神奇电碳集团有限公司 | A kind of brush mold with arc voltage |
| CN102873325A (en) * | 2012-09-13 | 2013-01-16 | 宁波科田磁业有限公司 | Method for feeding neodymium iron boron magnetic powder into die for pressing in layered mode |
| CN102873325B (en) * | 2012-09-13 | 2014-11-05 | 宁波科田磁业有限公司 | Method for feeding neodymium iron boron magnetic powder into die for pressing in layered mode |
| CN108199245A (en) * | 2018-01-22 | 2018-06-22 | 江苏民威电碳科技有限公司 | A kind of automatic line burying machine of brush |
| CN108199245B (en) * | 2018-01-22 | 2020-08-28 | 江苏民威电碳科技有限公司 | Automatic wire burying machine for electric brush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101355222B (en) | 2010-04-14 |
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