CN113199515B - Guide rail type vibrating head - Google Patents
Guide rail type vibrating head Download PDFInfo
- Publication number
- CN113199515B CN113199515B CN202110413507.XA CN202110413507A CN113199515B CN 113199515 B CN113199515 B CN 113199515B CN 202110413507 A CN202110413507 A CN 202110413507A CN 113199515 B CN113199515 B CN 113199515B
- Authority
- CN
- China
- Prior art keywords
- guide rail
- iron
- roller guide
- reed
- hollow structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 164
- 229910052742 iron Inorganic materials 0.000 claims abstract description 82
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 28
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910000617 Mangalloy Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
- B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/08—Means for actuating the cutting member to effect the cut
- B26D5/086—Electric, magnetic, piezoelectric, electro-magnetic means
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Sawing (AREA)
Abstract
The invention provides a guide rail type slicer vibrating head which comprises a blade support, a reed, a coil, a traction iron, a suction iron and a shifting sheet, wherein the blade support is fixed on the blade support; the suction iron is of an E-shaped structure and comprises a central column; the coil is wound on the central column; the central column is arranged adjacent to the traction iron; one end of the poking piece is connected with the traction iron, the other end of the poking piece is connected with the blade support, the traction iron is connected with the reed, the linear reciprocating movement of the blade support is realized through the on-off electricity of the coil, and the linearity of the linear movement is ensured through the crossed roller guide rail.
Description
Technical Field
The invention relates to the field of reciprocating motion devices, in particular to a guide rail type vibrating head.
Background
Patent document 2020113123823 discloses a small-stroke high-frequency linear reciprocating motion device, including a mover, a thrust iron, a first spring plate, a second spring plate, a stator, a coil and a suction iron; the stator comprises a front end and a rear end, and the front end is provided with a through hole; the rotor is positioned on one side far away from the rear end of the stator, and a gap is formed between the rotor and the stator; one ends of the first spring piece and the second spring piece are respectively arranged on two side surfaces of the rear end of the stator, and the other ends of the first spring piece and the second spring piece are connected through the rotor; the suction iron is arranged in the through hole and comprises a central column, and the central column faces the first spring piece; the coil is wound on the central column; the thrust iron is arranged on the first spring plate and is opposite to the coil. The small-stroke high-frequency linear reciprocating motion device can realize high-frequency, short-stroke and linear reciprocating motion, but in the prior art, the blade can generate longitudinal vibration during cutting, the amplitude can not be adjusted, and a guide rail is not arranged.
Disclosure of Invention
In order to solve the technical problem, the invention provides a guide rail type vibration head; the problem of short-distance high-frequency reciprocating linear motion of the slicing machine is solved. Compared with the existing slicing machine, the cross roller guide rail is added, and the longitudinal vibration of the blade during cutting is reduced. The mechanical amplitude adjusting screw is added, and the amplitude adjusting function can be reliably completed.
The specific technical scheme is as follows:
a guide rail type vibrating head comprises a connecting piece, a blade bracket, a reed, a coil, a traction iron, a suction iron, a guide rail assembly and a poking sheet;
the blade bracket is connected with the connecting piece through the guide rail component, the connecting piece is provided with a hollow structure, the suction iron and the traction iron are arranged in the hollow structure,
the suction iron comprises a central column; the coil is wound on the central column; the suction iron and the traction iron have a certain gap; one end of the poking piece is connected with the traction iron, the other end of the poking piece is connected with the blade support, and the traction iron is connected with the reed.
Preferably, the suction iron is formed by stacking sheets made of yokes, the suction iron further comprises two side columns, the central column is located between the two side columns, the central column is integrally E-shaped, the opening of the E-shaped suction iron faces the traction iron, the length and the width of the E-shaped suction iron are the same as those of the traction iron, and the positions of the suction iron and the traction iron are opposite.
Preferably, the cross roller guide is installed outside the hollow structure of the link, and the blade mount is slid on the outside of the link through the cross roller guide
Preferably, the guide rail assembly comprises a cross roller guide rail and a tension spring; the blade support is characterized in that the crossed roller guide rail and the tension spring are located on the side face of the blade support, an upper crossed roller guide rail platform cover and a lower crossed roller guide rail platform cover are respectively arranged above and below the crossed roller guide rail, the tension spring is located between the upper crossed roller guide rail platform cover and the lower crossed roller guide rail platform cover, the poking piece is connected with the lower crossed roller guide rail platform cover, and the blade support moves on the crossed roller guide rail.
Preferably, one end of the poking sheet is welded on the traction iron, and the other end of the poking sheet penetrates through a hole in the blade support after being bent and is inserted into a hole in the lower cover of the crossed roller guide rail platform.
Preferably, the reed is located the hollow structure of connecting piece and keeps away from the one end of dialling the plectrum, and the reed includes long limit and minor face, long limit and minor face form U type structure, the minor face of reed and hollow structure's first surface laminating, and fix the minor face on hollow structure's first surface through the screw.
Preferably, the vibration isolator further comprises an amplitude adjusting screw, the amplitude adjusting screw comprises an adjusting screw and a pressure spring, a threaded hole is formed in the connecting piece, the adjusting screw is installed in the threaded hole, the adjusting screw penetrates through the threaded hole and extends into the hollow structure, the pressure spring is located in the hollow structure, and one end of the pressure spring is abutted to the adjusting screw; the other end of the pressure spring is connected with the spring plate in an abutting mode.
Preferably, one end of the pressure spring is abutted with one end of the adjusting screw close to the hollow structure; the other end of the pressure spring is connected with the long edge of the reed in an abutting mode.
Preferably, the traction iron is formed by stacking sheets made of silicon steel materials, and the traction iron is in a shape of a cuboid, a cube or a cylinder.
Preferably, the driver blade is placed in the middle of the stack of thin sheets of the traction iron and is integrally formed by riveting.
Preferably, the reed is of a clip structure.
Preferably, the coil is made by winding enameled wire copper wires with the diameter of 0.1-5 mm.
Preferably, the reed is processed by a manganese steel plate with the thickness of 0.3-10mm, and the surface is plated with chrome or is electroplated to prevent oxidation.
The invention provides a vibrating slicer which comprises the guide rail type slicer vibrating head.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention is designed for realizing high-frequency, short-stroke and linear reciprocating motion, and can realize the linear reciprocating motion with adjustable stroke of 0.1-3 mm and adjustable frequency of 3-70 Hz.
(2) The power source of the invention is driven by electromagnetic force, permanent magnetic accessories are not contained, elastic reset in short-distance linear motion is realized by the U-shaped structural reed, and the lower linearity is ensured by the crossed roller guide rail.
Drawings
FIG. 1 is a cross-sectional view of a rail-mounted vibratory head provided by the present invention;
FIG. 2 is another cross-sectional view of a tracked vibration head provided in accordance with the present invention;
FIG. 3 is a schematic perspective view of a rail-type vibration head according to the present invention;
the specific meanings of the symbols in the drawings are as follows:
1: a blade holder; 2: pulling iron; 3: an amplitude adjustment screw; 31: a screw; 32: compressing the spring; 4: a toggle sheet; 5: a coil; 6: a suction iron; 7: a reed; 71: a short side; 72: a long side; 8: a connecting member; 9: a tension spring; 10: a cross roller guide rail; 11: an upper cover of the crossed roller guide rail platform; 12: and the lower cover of the crossed roller guide rail platform.
Detailed Description
The following describes a guide rail type vibration head and its working principle in detail with reference to the accompanying drawings.
As shown in fig. 1-3, specifically, the invention provides a guide rail type vibration head, which comprises a connecting piece 8, a blade support 1, a spring 7, a coil 5, a pulling iron 2, a pulling iron 6, a guide rail assembly and a poking piece 4;
The blade support 1 is connected with a connecting piece 8 through a guide rail assembly, a hollow structure is arranged on the connecting piece 8, and the suction iron 6 and the traction iron 2 are arranged in the hollow structure;
the suction iron 6 includes a center post; the coil is wound on the central column; the suction iron 6 and the traction iron 2 have a certain gap;
one end of the poking piece 4 is connected with the traction iron 2, the other end of the poking piece is connected with the blade support 1, and the traction iron 2 is connected with the reed 7. The coil provided by the invention is formed by winding enameled wire copper wires with the diameter of 0.1-5 mm. In particular, the invention provides a spring plate which is fixed with the connecting piece 8 by two screws.
Specifically, the suction iron 6 provided by the invention is formed by stacking sheets made of yoke iron, the suction iron further comprises two side columns, the central column is positioned between the two side columns, the central column is integrally E-shaped, the opening of the E-shaped suction iron faces the traction iron, the length and the width of the E-shaped suction iron are the same as those of the traction iron, and the position of the suction iron is opposite to that of the traction iron.
Compared with the existing slicing machine, the slicing machine is additionally provided with the crossed roller guide rail, so that the longitudinal vibration of the blade during cutting is reduced, and specifically, the guide rail assembly comprises the crossed roller guide rail 10 and the tension spring 9; crossed roller guide rail 10 and extension spring 9 are located on the side face of the blade bracket, crossed roller guide rail 10 is provided with a crossed roller guide rail platform upper cover 11 and a crossed roller guide rail platform lower cover 12 from top to bottom, extension spring 9 is located between crossed roller guide rail platform upper cover 11 and crossed roller guide rail platform lower cover 12, toggle plate 4 is connected with crossed roller guide rail platform lower cover 12, and blade bracket 1 moves on crossed roller guide rail 10. The tension spring is processed by manganese steel wires with the diameter of 0.3mm to 5mm, the surface is plated with chrome or is electroplated to prevent oxidation, and the upper cover of the crossed roller guide rail platform and the lower cover of the crossed roller guide rail platform are made of aluminum alloy or other metals without magnetic force.
The cross roller guide rail provided by the invention is arranged outside the hollow structure of the connecting piece 8, and the blade bracket 1 slides outside the connecting piece through the cross roller guide rail.
One end of the poking sheet 4 is welded on the traction iron 2, and the other end of the poking sheet is bent and inserted into a hole of the cross roller guide rail platform lower cover 12 after passing through a hole on the blade support 1.
The poking piece 4 extends into holes of the blade support 1 and the cross roller guide rail platform lower cover 12 after being bent, the tension spring is connected with the cross roller guide rail platform lower cover 12, the blade support 1 and the cross roller guide rail platform lower cover 12 are pulled to the direction far away from the traction iron under the action of the tension spring, and the bent poking piece 4 extending into the hole is always kept to be attached to one side of the hole close to the suction iron. The blade support 1 is connected with the cross roller guide rail platform lower cover 12 through a screw, the cross roller guide rail platform lower cover 12 is connected with a tension spring, and the tension spring drives the cross roller guide rail platform lower cover to move.
Specifically, the spring 7 provided by the invention is located in the hollow structure of the connecting piece 8 and is far away from one end of the dial plate 4, the spring comprises a long side 72 and a short side 71, the long side 72 and the short side 71 form a U-shaped structure, the short side of the spring 7 is attached to the first surface of the hollow structure, and the short side is fixed on the first surface of the hollow structure through a screw. Wherein the reed is processed by a manganese steel plate with the thickness of 0.3-10mm, and the surface is plated with chrome or is electroplated to prevent oxidation. The traction iron is welded with the reed, and the other end of the reed is provided with two threaded holes which are fixed with the connecting piece 8 and connected by screws.
As a preferred embodiment, the vibration head provided by the present invention further includes an amplitude adjusting screw 3, the amplitude adjusting screw 3 includes an adjusting screw 31 and a pressure spring 32, a threaded hole is provided on the connecting member 8, the adjusting screw 31 is installed in the threaded hole, the adjusting screw 31 passes through the threaded hole and extends into the hollow structure, the pressure spring 32 is located in the hollow structure, and one end of the pressure spring 32 abuts against the adjusting screw 31; the other end of the compression spring 32 abuts against the spring plate 7. Specifically, one end of the pressure spring 32 abuts against one end of the adjusting screw 31 close to the hollow structure; the other end of the compression spring 32 abuts against the long side 72 of the spring.
In a preferred embodiment, the traction iron 2 is formed by stacking thin sheets made of silicon steel material, and the shape of the traction iron is a cuboid, a cube or a cylinder. The poking piece 4 is arranged in the middle of the thin sheet stacking layer of the traction iron 2 and is pressed into a whole by a rivet.
The working principle of the vibrating head of the guide rail type slicing machine is as follows:
when the cross roller guide rail platform works, the electronic coil 5 is electrified, the E-shaped attraction iron 7 generates electromagnetic force and attraction to the traction iron 2, and the shifting piece 4 connected with the traction iron is close to the E-shaped attraction iron, so that the shifting piece 4 drives the cross roller guide rail platform lower cover 12 and the blade support 2 to be close to the E-shaped attraction iron 6 at the same time.
After the electronic coil 5 is powered off, the electromagnetic force generated by the E-shaped attraction iron 6 disappears, the reed 7 moves towards the initial position by the elastic force, and the cross roller guide rail platform lower cover 12 and the blade support 1 are pulled towards the initial position of the reed 7 by the tension spring 9.
The poking piece 4 extends into holes of the blade support 1 and the cross roller guide rail platform lower cover 12 after being bent, the tension spring is connected with the cross roller guide rail platform lower cover 12, the blade support 1 and the cross roller guide rail platform lower cover 12 are pulled to the direction far away from the traction iron under the action of the tension spring, and the bent poking piece 4 extending into the hole is always kept to be attached to one side of the hole close to the suction iron.
The electronic coil 5 is powered on and powered off once, the blade support 1 finishes linear reciprocating movement, and the cross roller guide rail 10 ensures the linearity of the linear movement.
The amplitude adjusting screw 3 consists of an adjusting screw and a pressure spring; the distance between the screw and the reed is adjusted, so that the pressure spring at the front end of the screw adjusts the distance between the traction iron 2 and the E-shaped suction iron 6 by pressing the reed 7, and the amplitude adjustment is realized.
The reciprocating motion of the rotor is controlled by controlling the power-on and power-off of the electronic coil, and the reciprocating motion frequency of the motor rotor is controlled by controlling the on/off frequency of the current.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. A guide rail type vibrating head is characterized by comprising a connecting piece, a blade bracket, a guide rail assembly, a reed, a coil, a traction iron, a suction iron and a poking sheet;
the blade bracket is connected with a connecting piece through a guide rail assembly, the connecting piece is provided with a hollow structure, the suction iron and the traction iron are arranged in the hollow structure,
the suction iron is of an E-shaped structure and is provided with a central column; the coil is wound on the central column of the suction iron; the suction iron and the traction iron have a set gap;
the guide rail assembly comprises a cross roller guide rail and a tension spring, and the cross roller guide rail and the tension spring are positioned on the side surface of the blade bracket; the upper part and the lower part of the crossed roller guide rail are respectively provided with a crossed roller guide rail platform upper cover and a crossed roller guide rail platform lower cover, the tension spring is positioned between the crossed roller guide rail platform upper cover and the crossed roller guide rail platform lower cover, the poking piece is connected with the crossed roller guide rail platform lower cover, and the blade bracket moves on the crossed roller guide rail;
one end of the poking sheet is welded on the traction iron, and the other end of the poking sheet penetrates through a hole in the blade support and is inserted into a hole in the lower cover of the crossed roller guide rail platform after being bent;
The reed is positioned in the hollow structure of the connecting piece and is far away from one end of the poking piece, the reed comprises a long side and a short side, the long side and the short side form a U-shaped structure, the short side of the reed is attached to the first surface of the hollow structure, and the short side is fixed on the first surface of the hollow structure through a screw;
the vibration amplitude adjusting device is characterized by further comprising an amplitude adjusting screw, the amplitude adjusting screw comprises an adjusting screw and a pressure spring, a threaded hole is formed in the connecting piece, the adjusting screw is installed in the threaded hole, the adjusting screw penetrates through the threaded hole and extends into the hollow structure, the pressure spring is located in the hollow structure, and one end of the pressure spring is abutted to one end, close to the hollow structure, of the adjusting screw; the other end of the pressure spring is abutted against the long edge of the reed;
the contact part of the long edge of the reed and the pressure spring is of a horizontal extension structure, and one end of the long edge of the reed, which is close to the traction iron, is of a vertical bending structure, so that the end part of the long edge of the reed is horizontally and fixedly connected with the traction iron.
2. A track-type vibratory head according to claim 1, wherein the cross roller guide is mounted outside the hollow structure of the connector, the blade support sliding outside the connector via the cross roller guide.
3. The tracked vibration head of claim 1, wherein the pulling iron is formed by stacking thin sheets made of a silicon steel material, and the pulling iron has a shape of a rectangular parallelepiped, a cube or a cylinder.
4. A track-type vibratory head according to claim 1 wherein the driver blade is disposed intermediate stacked layers of thin sheets of the traction iron and is integrally formed by riveting.
5. A vibrating microtome comprising the tracked vibrating head of any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110413507.XA CN113199515B (en) | 2021-04-16 | 2021-04-16 | Guide rail type vibrating head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110413507.XA CN113199515B (en) | 2021-04-16 | 2021-04-16 | Guide rail type vibrating head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113199515A CN113199515A (en) | 2021-08-03 |
| CN113199515B true CN113199515B (en) | 2022-06-28 |
Family
ID=77027473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110413507.XA Active CN113199515B (en) | 2021-04-16 | 2021-04-16 | Guide rail type vibrating head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113199515B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048422U (en) * | 1988-11-05 | 1989-11-29 | 国家建筑材料工业局苏州混凝土水泥制品研究院 | Micro electromagnetic shaking table |
| CN2103464U (en) * | 1991-02-26 | 1992-05-06 | 倪聪明 | Miniature electric carving machine |
| DE102008016165B4 (en) * | 2008-03-28 | 2010-10-14 | Leica Biosystems Nussloch Gmbh | Microtome with variable cutting stroke using a linear motor as drive |
| CN102101107A (en) * | 2009-12-22 | 2011-06-22 | 天津立林石油机械有限公司 | Vibration machine with electromagnetic vibration source |
| CN211347792U (en) * | 2019-10-25 | 2020-08-25 | 广东测科仪器有限公司 | Reciprocating type abrasion-resistant testing machine |
| CN112461576B (en) * | 2020-11-20 | 2023-04-14 | 中芯生物科技(天津)有限公司 | Small-stroke high-frequency linear reciprocating motion device |
-
2021
- 2021-04-16 CN CN202110413507.XA patent/CN113199515B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113199515A (en) | 2021-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102359667B1 (en) | Power generation device, power generation device manufacturing method and actuator | |
| JP4576919B2 (en) | Reciprocating electric razor | |
| KR101115878B1 (en) | Linear drive device provided with an armature body having a magnet carrier | |
| KR100556005B1 (en) | Actuator and method of manufacturing the actuator | |
| KR100516546B1 (en) | Magnetic actuator | |
| US20090315653A1 (en) | Electromagnet device and electromagnetic contactor | |
| JP2007283201A (en) | Vibration generator | |
| CN103222023A (en) | Latching relay | |
| CN113199515B (en) | Guide rail type vibrating head | |
| JP2007104898A (en) | Vibration type linear actuator | |
| JP4826616B2 (en) | Electromagnetic relay | |
| JP5113436B2 (en) | Linear motor drive shaft feeder | |
| WO2006013395A1 (en) | A razor | |
| CN1930762B (en) | Linear drive unit with an oscillating armature part and a spring | |
| CN105324193A (en) | Die component for a press device | |
| JP2004016524A (en) | Vibration type linear actuator and electric razor using the same | |
| CN112461576B (en) | Small-stroke high-frequency linear reciprocating motion device | |
| CN113165016A (en) | Control device | |
| US20030189473A1 (en) | AC electromagnet | |
| CN214544066U (en) | Linear motor | |
| CN212461534U (en) | Electromagnetic relay for increasing creepage distance | |
| CN215115230U (en) | Guide tracked slicer vibrating head | |
| JP4364723B2 (en) | Magnetic contactor | |
| JP2007083073A (en) | Vibration linear actuator | |
| EP1810796B1 (en) | Hair clipper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |