CN202763683U - Plastic package stator inner cavity polish-brush dust sucking plant - Google Patents
Plastic package stator inner cavity polish-brush dust sucking plant Download PDFInfo
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- CN202763683U CN202763683U CN 201220486994 CN201220486994U CN202763683U CN 202763683 U CN202763683 U CN 202763683U CN 201220486994 CN201220486994 CN 201220486994 CN 201220486994 U CN201220486994 U CN 201220486994U CN 202763683 U CN202763683 U CN 202763683U
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- brush
- brush dust
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Abstract
The utility model discloses a plastic package stator inner cavity polish-brush dust sucking plant. The plastic package stator inner cavity polish-brush dust sucking plant comprises a workpiece positioning mechanism, a pressing mechanism and a polish-brush dust sucking assembly. A valid combination of a combined brush and a hollow shaft is utilized and the technology that a machining space is sealed is adopted and then negative pressure is drawn. Within a tiny inner hole space, the polish-brush is designed to be of a multi-layer structure, and shafts which are connected with the polish-brush are designed to be of hollow structure, so that the shafts are organically combined into a polish-brush head. The plastic package stator inner cavity polish-brush dust sucking plant not only can cut down injection molding overflow materials on the inner wall of the plastic package stator, but also can brush away dust attached to the inner wall of the plastic package stator, wherein the dust is produced due to grinding, and the plastic package stator inner cavity polish-brush dust sucking plant also can draw away the dust through the negative pressure in the hollow shaft. When the plastic package stator inner cavity polish-brush dust sucking plant grinds, the plastic package stator inner cavity polish-brush dust sucking plant blows and shoots compressed air to a sealed working surface at regular intervals, and a negative pressure pipeline is favored to drawing out the dust. A suction device is matched and specially developed, and the suction device can effectively collect the dust produced in the production. The environment is protected, the human health is guaranteed, the labor intensity is reduced, the product quality is guaranteed, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of device for removing the injected plastics material that the plastic packaged motor stator inner chamber overflows.
Background technology
Plastic packaging motor is the New-type electric machine that external the mid-80 grows up.It adopts unique flip-clip with overall package such as electric machine stator iron, windings, and steel or the aluminum casing of traditional structure motor have been cancelled, thereby greatly reduce the work noise of motor, improve the safe insulation performance, extremely be suitable for squelch and the very high household electrical appliance of safe electrical appliance performance requirement.The stator core of plastic packaging motor is that two semicircle iron cores piece together a full circle and make.Coiling, amalgamation gets final product plastic packaging.First in the metal pattern of the injection mouldings of packing into such as the stator core of embedded line circle and lead-out wire during plastic packaging, then injection mo(u)lding.
After the moulding of plastic packaging stator, the phenomenon that the motor inboard can exist injected plastics material to overflow, therefore need motor cavity is carried out polish-brush after the injection mo(u)lding, at present, when processing the injected plastics material that these overflow, extensively utilize the polishing electric tool of non-special use, the electronic bistrique sander at two for example, similar these grinding apparatus can only be applicable to the workpiece that the endoporus two ends do not have the through hole pattern of end cap, are provided with the motor stator of end cap for an end, then can't process.And sander can produce a large amount of dust when work, when the workman utilizes manual air gun to blow away the dust that removes adhesion, more can cause a large amount of airborne dusts, make the work on the spot environment very abominable, and simple by hand its poor effect of air gun drifting dust that makes also can exist because of static to stick to motor cavity " stubbornness " dust.
Therefore not only labour intensity is large for above-mentioned tool and method processing these injected plastics materials that overflow, and pollutes working environment, damages workers ' health, and treatment effect is not good yet, affects product quality.
The utility model content
Technical problem to be solved in the utility model is to realize a kind of removing of the injected plastics material that overflows in the motor stator efficiently can being polished, and can not produce the polish-brush dust exhaust apparatus of airborne dust.
To achieve these goals, the technical solution adopted in the utility model is: a kind of plastic packaging stator inner chamber polish-brush dust exhaust apparatus, and this device comprises workpiece locating mechanism, press mechanism and polish-brush dust suction subassembly;
The location tray of described workpiece locating mechanism is fixed on the substrate and by the rotation motor by bearing and drives rotation, and described location tray center is provided with the working hole that stretches into for the polish-brush dust suction subassembly;
Described press mechanism is fixed in the workpiece locating mechanism top, and the position of its corresponding location tray is provided with the runner of fixation workpiece;
The supporting revolving shaft end of described polish-brush dust suction subassembly is fixed with emery wheel, described emery wheel is stretched in the location tray by working hole, described supporting revolving shaft is the inner quill shaft that is provided with negative pressure channel, its end that is fixed with emery wheel is provided with the negative pressure suction inlet that is communicated with negative pressure channel, described supporting revolving shaft and hollow rotating shaft are affixed, described hollow rotating shaft is provided with the rotating shaft power wheel outward, and connects by bearing and to take out the dirt passage and the dirt equipment connection is taken out in the outside.
The one or both ends of described emery wheel are fixed with dust removal brush, and described dust removal brush is that the polish-brush radius is greater than the hair brush structure of emery wheel.
Described supporting revolving shaft outer wall is provided with a circle seal groove, is provided with sealing ring in the described seal groove, and gapped between described seal groove outer wall and the sealing ring inwall, described sealing ring external diameter is slightly less than the working hole internal diameter of location tray.
Described location tray comprises two circle concentric locating rings of projection on gripper shoe and the gripper shoe, and workpiece is fixed in the interior locating ring, and interior locating ring is provided with the breach of laying the workpiece terminals, the wire of the gap place work piece between the inside and outside locating ring.
Described hollow rotating shaft is fixed in the fixed cover by bearing, described fixed cover with take out the dirt passage and be connected, fixed cover is fixed in the guide rod seat of assembly holder by horizontally disposed skew guide rod, described assembly holder is provided with the thruster cylinder, this thruster cylinder stroke directions is identical with skew guide rod guide direction, described thruster cylinder with the emery wheel of polish-brush dust suction subassembly in workpiece centre be close between two stations of workpiece inwall and move.
Be provided with the guide rod of vertical setting around the described assembly holder, its guide rail is fixed in the guide rod seat of lifting support, is provided with vibration cylinder between described assembly holder and lifting support, and described vibration cylinder moves up and down emery wheel and polishes at inside workpiece.
Be fixed with lift cylinders on the described lifting support, described lift cylinders push rod inserts in the top stem casing of assembly holder bottom surface, described lift cylinders control polish-brush dust suction subassembly stretch into withdraw from the location tray working hole.
Described location tray is provided with a plurality of, and the top of each location tray is provided with a runner with matching, and the below is provided with a polish-brush dust suction subassembly with matching.
The utility model has the advantage of that this device utilizes the brush of combination and effective combination of hollow shaft, adopt processing space first sealing to be realized taking out again the technology of negative pressure, in minimum endoporus space, polish-brush design sandwich construction, connect the axle design hollow-core construction of polish-brush, organically they are combined into the polish-brush head.Material is overflowed in the injection moulding that both can grind off on the plastic packaging stator inwall, can brush off again because grinding is attached to dust on the inwall, can also siphon away dust by the negative pressure in the quill shaft.In polish-brush, also regularly penetrate compressed air to sealing worksheet top blast, be conducive to negative-pressure pipeline dust is taken away.Supporting and the special dirt machine of taking out of having developed can effectively be collected the dust in the production.Protect environment, guaranteed health, reduced labor intensity, guaranteed product quality, improved production efficiency.
Description of drawings
The below briefly explains the content of every width of cloth accompanying drawing expression in the utility model specification and the mark among the figure:
Fig. 1 is plastic packaging stator inner chamber polish-brush dust exhaust apparatus structural representation;
Fig. 2 is the structural representation of polish-brush dust suction subassembly shown in Fig. 1;
Mark among the above-mentioned figure is: 2, polish-brush dust suction subassembly; 3, workpiece; 4, substrate; 5, Timing Belt; 6, location tray; 7, rotation motor; 8, elevating mechanism; 9, press mechanism; 10, take out the dirt passage; 11, hollow rotating shaft; 12, rotating shaft power wheel; 13, fixed cover;
201, emery wheel; 202, dust removal brush; 203, supporting revolving shaft; 204, negative pressure suction inlet; 205, negative pressure channel; 206, sealing ring;
801, lifting support; 802, assembly holder; 803, thruster cylinder; 804, the location is fast; 805, skew guide rod; 806, lift cylinders;
901, runner; 902, runner axostylus axostyle; 903, runner bearing; 904, optical axis; 905, lower air cylinder; 906, press down bearing.
The specific embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, with help those skilled in the art to utility model of the present utility model conceive, technical scheme has more complete, accurate and deep understanding.
Referring to Fig. 1 as can be known, plastic packaging stator inner chamber polish-brush dust exhaust apparatus mainly is comprised of workpiece locating mechanism, press mechanism 9, polish-brush dust suction subassembly 2 and elevating mechanism 8, and wherein all parts structure and relevant position thereof relation is specific as follows:
Workpiece locating mechanism is used for fixation workpiece 3, it is the motor plastic package stator, substrate 4 is the fixing metallic plate of level, substrate 4 upper surfaces are in order to stationary positioned pallet 6, location tray 6 is fixed on the substrate 4 and by rotation motor 7 by bearing and drives rotation, location tray 6 comprises two circle concentric locating rings of projection on gripper shoe and the gripper shoe, workpiece 3 is fixed in the interior locating ring, and interior locating ring is provided with the breach of laying workpiece 3 terminals, workpiece 3 rotates thereupon when utilizing this breach can guarantee location tray 6 rotation, in, the wire of the gap place work piece 3 between the outer positioning ring, thereby wire influence work when avoiding workpiece 3 High Rotation Speed, interior locating ring center is provided with the working hole that polish-brush dust suction subassembly 2 stretches into, this working hole on-fixed workpiece 3 towards substrate 4 extensions, the extension utilizes bearing to be fixed on the substrate 4, and the part that elongated end passes substrate 4 is provided with synchronous pulley.Be fixed on and turn motor 7 on the substrate 4, drive location tray 6 rotations by Timing Belt 5.Because location tray 6 has the substrate of running through 4 working holes, thus polish-brush dust suction subassembly 2 can by working hole stretch into withdraw from location tray 6.
Referring to Fig. 2 as can be known, polish-brush dust suction subassembly 2 comprises that inside is provided with the supporting revolving shaft 203 of negative pressure channel 205, be fixed on the emery wheel 201 of supporting revolving shaft 203 1 ends, and dust removal brush 202, supporting revolving shaft 203 is the rotating shaft of hollow, its other end connects with the rotational power source, be fixed on emery wheel 201 on the supporting revolving shaft 203 with its High Rotation Speed, the plastic packaged motor stator inner chamber is polished, because the polish-brush dust suction subassembly stretches into from an end and carries out work in the plastic packaged motor stator, so this mechanism can also adapt to an end with the plastic packaging motor of end cap.Supporting revolving shaft 203 is fixed with emery wheel 201 1 ends and is provided with the negative pressure suction inlet 204 that is communicated with negative pressure channel 205, and negative pressure channel 205 connects the negative pressure source of the gas, so negative pressure suction inlet 204 generation suction air-flows, and the dust that emery wheel 201 is polished all siphons away.
In order better to improve negative pressure suction inlet 204 pick-up performance, particularly for because of Electrostatic Absorption at motor stator inner chamber dust, be fixed with dust removal brush 202 in the one or both ends of emery wheel 201, dust removal brush 202 is for being fixed on the annular hairbrush of emery wheel 201 upper and lower sides, dust removal brush 202 polish-brush radiuses are greater than emery wheel 201, it brushes " stubbornness " dust of motor stator inner chamber fall with supporting revolving shaft 203 rotations, to strengthen negative pressure suction inlet 204 dust removal abilities.
For further improving negative pressure suction inlet 204 pick-up performance, supporting revolving shaft 203 only center, end is used for fixedly emery wheel 201, peripheral position is a circle scarf, negative pressure suction inlet 204 is exactly the opening of offering on this scarf with negative pressure channel 205, negative pressure suction inlet 204 is positioned at emery wheel 201 belows like this, carry out obliquely dust suction, pick-up performance is better.
Can produce the aspiration of negative pressure during the polish-brush dust suction of polish-brush dust suction subassembly 2, if being in communication with the outside by working hole, the motor stator inner chamber can affect pick-up performance, and supporting revolving shaft 203 is revolving part, therefore can not closely cooperate with the working hole inwall, therefore be less than the working hole internal diameter at supporting revolving shaft 203 external diameters, and supporting revolving shaft 203 outer walls arrange one the circle seal groove, in seal groove, be provided with sealing ring 206, gapped between sealing groove outer wall and sealing ring 206 inwalls, and external diameter is slightly less than the working hole internal diameter, the gap of seal groove and sealing ring 206 can avoid both to rub, and supporting revolving shaft 203 vibrations are on the impact of sealing ring 206 and working hole, and sealing ring 206 external diameters are slightly less than the working hole internal diameter, can guarantee that sealing ring 206 just is placed in the working hole, and can realize that the polish-brush dust suction subassembly stretches into working hole and enters duty, and the hole of deactivating enters wait state, avoid the interference between sealing ring and the working hole, make the polish-brush dust suction subassembly free to advance or retreat, rotation freely.
The rotational power source that is connected with polish-brush dust suction subassembly 2 is the hollow rotating shaft 11 affixed with supporting revolving shaft 203, the hollow rotating shaft 11 outer rotating shaft power wheels 12 that are fixed with, this power wheel 12 is the transmission mechanism that is connected with motor, hollow rotating shaft 11 extensions are fixed in the fixed cover 13 by bearing, fixed cover 13 other ends with take out the dirt path 10 and be connected, taking out the dirt path 10 is hose construction, and takes out the dirt equipment connection with the outside, when guaranteeing 2 displacement of polish-brush dust suction subassembly, it can move thereupon.Fixed cover 13 is fixed in the guide rod seat of assembly holder 802 by horizontally disposed skew guide rod 805, and the motor that drives hollow rotating shaft 11 is fixed on the fixed cover 13.For guaranteeing fixed cover 13 fixations, can be on assembly holder 802 predetermined inner diameter much larger than fixed cover external diameter 13 installing holes, fixed cover 13 passes installing hole, upper and lower surface at assembly holder 802 all is connected with fixed cover 13 by skew guide rod 805 and guide rod seat thereof, be provided with thruster cylinder 803 at assembly holder 802, these thruster cylinder 803 stroke directions are identical with skew guide rod 805 guide direction, and be fixed with locating piece 804 at assembly holder 802, this locating piece 804 is terminal in the conduct direction of fixed cover 13, is used for spacing.The external diameter of emery wheel 201 is less than workpiece 3 internal diameters, need to be close to workpiece 3 inwalls during emery wheel 201 work, and when picking and placeing workpiece 3, need emery wheel 201 to place location tray 6 centre positions, then thruster cylinder 803 and skew guide rod 805 with matching thereof can be with the emery wheel 201 of polish-brush dust suction subassembly 2 at workpiece 3 centers be close between two stations of workpiece 3 inwalls and move.
The emery wheel 201 of polish-brush dust suction subassembly 2 highly is less than workpiece 3 height, for the effect of better performance dust removal brush 202, during 2 work of polish-brush dust suction subassembly, preferably can move up and down simultaneously, can also brush efficiently dust in the time of uniform grinding workpiece 3 inwall.Then be fixed with four guide rods that vertically arrange around the assembly holder 802, every guide rod is fixed in the respective guide rod seat of lifting support 801, and assembly holder 802 is provided with the less vibration cylinder of stroke with lifting support 801, and vibration cylinder moves up and down emery wheel 201 and polishes in workpiece 3 inside.Because the vibration cylinder stroke is less, and spacing is larger between assembly holder 802 and the lifting support 801, can cooperate vibration cylinder coupling assembling bearing 802 and lifting support 801 by cushion block.
Polish-brush dust suction subassembly 2 is caused damage when avoiding picking and placeing workpiece 3, be fixed with the long lift cylinders 806 of stroke on the lifting support 801, in the top stem casing of push rod plug-in package bearing 802 bottom surfaces of lift cylinders 806, lift cylinders 806 control polish-brush dust suction subassemblies 2 stretch into withdraw from location tray 6 working holes.Owing to be connected with lift cylinders 806 push rods by top stem casing, so assembly holder 802 is not affixed with lifting support 801, therefore when lift cylinders 806 rises, can not affect vibration cylinder work.
In order to improve working (machining) efficiency, the plastic packaging stator inner chamber polish-brush dust exhaust apparatus on the substrate 4 is provided with many groups, can process a plurality of workpiece 3 simultaneously like this, and the below arranges 4 retable envelope bore of stator polish-brush dust exhaust apparatus on the substrate 4 and describes as example.Four location tray 6 are foursquare mode with circle center line connecting and are fixed on the substrate 4, the synchronous pulley that location tray 6 is passed substrate 4 is connected with the power wheel of rotation motor 7 by Timing Belt 5, the below homogeneous of each location tray 6 a polish-brush dust suction subassembly 2 with matching, each polish-brush dust suction subassembly 2 all is fixed on the assembly holder 802 of elevating mechanism 8, thereby control polish-brush dust suction subassembly 2 stretch into synchronously withdraw from corresponding location tray 6, the top of each location tray 6 is provided with a runner 901 with matching simultaneously, each runner 901 all is fixed on the runner bearing 903 of press mechanism 9, thereby control runner 901 compresses the workpiece 3 that leaves corresponding location tray 6 synchronously.
Principle is as follows during device work: device is when state to be processed, polish-brush dust suction subassembly 2 is positioned at substrate 4 belows, runner 901 leaves location tray 6, after putting into workpiece 3 in location tray 6, by this device of push button start, at first runner 901 presses down and fixes workpiece 3, afterwards polish-brush dust suction subassembly 2 rotations are also risen, polish-brush dust suction subassembly 2 is pushed emery wheel 201 to workpiece 3 inwalls by thruster cylinder 803 afterwards, simultaneously vibration cylinder control emery wheel 201 moves up and down, and meanwhile, takes out the work of dirt equipment and takes out dirt, wait polish complete after, thruster cylinder 803 pushes back workpiece 3 centers with emery wheel 201, and emery wheel 201 stops the rotation and moves up and down simultaneously, takes out the dirt device shutdown, last press mechanism 9 rises, and polish-brush dust suction subassembly 2 withdraws from location tray 6.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (8)
1. plastic packaging stator inner chamber polish-brush dust exhaust apparatus, it is characterized in that: this device comprises workpiece locating mechanism, press mechanism (9) and polish-brush dust suction subassembly (2);
The location tray of described workpiece locating mechanism (6) is fixed on substrate (4) by bearing and upward and by rotation motor (7) drives rotation, and described location tray (6) center is provided with the working hole that stretches into for polish-brush dust suction subassembly (2);
Described press mechanism (9) is fixed in the workpiece locating mechanism top, and the position of its corresponding location tray (6) is provided with the runner (901) of fixation workpiece (3);
Supporting revolving shaft (203) end of described polish-brush dust suction subassembly (2) is fixed with emery wheel (201), described emery wheel (201) is stretched in the location tray (6) by working hole, described supporting revolving shaft (203) is provided with the quill shaft of negative pressure channel (205) for inside, its end that is fixed with emery wheel (201) is provided with the negative pressure suction inlet (204) that is communicated with negative pressure channel (205), described supporting revolving shaft (203) is affixed with hollow rotating shaft (11), the outer rotating shaft power wheel (12) that is provided with of described hollow rotating shaft (11), and take out dirt passage (10) by the bearing connection and take out the dirt equipment connection with the outside.
2. plastic packaging stator inner chamber polish-brush dust exhaust apparatus according to claim 1, it is characterized in that: the one or both ends of described emery wheel (201) are fixed with dust removal brush (202), and described dust removal brush (202) is that the polish-brush radius is greater than the hair brush structure of emery wheel (201).
3. plastic packaging stator inner chamber polish-brush dust exhaust apparatus according to claim 2, it is characterized in that: described supporting revolving shaft (203) outer wall is provided with a circle seal groove, be provided with sealing ring (206) in the described seal groove, gapped between described seal groove outer wall and sealing ring (206) inwall, described sealing ring (206) external diameter is slightly less than the working hole internal diameter of location tray (6).
4. plastic packaging stator inner chamber polish-brush dust exhaust apparatus according to claim 3, it is characterized in that: described location tray (6) comprises two circle concentric locating rings of projection on gripper shoe and the gripper shoe, workpiece (3) is fixed in the interior locating ring, and interior locating ring is provided with the breach of laying workpiece (3) terminals, the wire of the gap place work piece (3) between the inside and outside locating ring.
5. each described plastic packaging stator inner chamber polish-brush dust exhaust apparatus according to claim 1-4, it is characterized in that: described hollow rotating shaft (11) is fixed in the fixed cover (13) by bearing, described fixed cover (13) with take out dirt passage (10) and be connected, fixed cover (13) is fixed in the guide rod seat of assembly holder (802) by horizontally disposed skew guide rod (805), described assembly holder (802) is provided with thruster cylinder (803), this thruster cylinder (803) stroke directions is identical with skew guide rod (805) guide direction, described thruster cylinder (803) with the emery wheel (201) of polish-brush dust suction subassembly (2) at workpiece (3) center be close between two stations of workpiece (3) inwall and move.
6. plastic packaging stator inner chamber polish-brush dust exhaust apparatus according to claim 5, it is characterized in that: described assembly holder (802) is provided with the guide rod of vertical setting all around, its guide rail is fixed in the guide rod seat of lifting support (801), be provided with vibration cylinder between described assembly holder (802) and lifting support (801), described vibration cylinder moves up and down emery wheel (201) and polishes in workpiece (3) inside.
7. plastic packaging stator inner chamber polish-brush dust exhaust apparatus according to claim 5, it is characterized in that: be fixed with lift cylinders (806) on the described lifting support (801), described lift cylinders (806) push rod inserts in the top stem casing of assembly holder (802) bottom surface, described lift cylinders (806) control polish-brush dust suction subassembly (2) stretch into withdraw from location tray (6) working hole.
8. according to claim 1-4, each described plastic packaging stator inner chamber polish-brush dust exhaust apparatus in 6,7, it is characterized in that: described location tray (6) is provided with a plurality of, and the top of each location tray (6) is provided with a runner with matching (901), and the below is provided with a polish-brush dust suction subassembly with matching (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486994 CN202763683U (en) | 2012-09-20 | 2012-09-20 | Plastic package stator inner cavity polish-brush dust sucking plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486994 CN202763683U (en) | 2012-09-20 | 2012-09-20 | Plastic package stator inner cavity polish-brush dust sucking plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202763683U true CN202763683U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220486994 Expired - Fee Related CN202763683U (en) | 2012-09-20 | 2012-09-20 | Plastic package stator inner cavity polish-brush dust sucking plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202763683U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848288A (en) * | 2012-09-20 | 2013-01-02 | 芜湖安福川工业成套设备有限公司 | Grinding brush dust absorption device of plastic package stator inner cavity |
| CN111015478A (en) * | 2020-03-04 | 2020-04-17 | 张为博 | Plastic package stator cavity cleaning machine and using method thereof |
-
2012
- 2012-09-20 CN CN 201220486994 patent/CN202763683U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848288A (en) * | 2012-09-20 | 2013-01-02 | 芜湖安福川工业成套设备有限公司 | Grinding brush dust absorption device of plastic package stator inner cavity |
| CN102848288B (en) * | 2012-09-20 | 2015-04-01 | 芜湖安福川工业成套设备有限公司 | Grinding brush dust absorption device of plastic package stator inner cavity |
| CN111015478A (en) * | 2020-03-04 | 2020-04-17 | 张为博 | Plastic package stator cavity cleaning machine and using method thereof |
| CN111015478B (en) * | 2020-03-04 | 2020-09-01 | 张为博 | Plastic package stator cavity cleaning machine and using method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150920 |
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| EXPY | Termination of patent right or utility model |