CN109226387B - Simple pipe bending machine - Google Patents
Simple pipe bending machine Download PDFInfo
- Publication number
- CN109226387B CN109226387B CN201811226515.8A CN201811226515A CN109226387B CN 109226387 B CN109226387 B CN 109226387B CN 201811226515 A CN201811226515 A CN 201811226515A CN 109226387 B CN109226387 B CN 109226387B
- Authority
- CN
- China
- Prior art keywords
- die plate
- plate
- core head
- head
- core
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/16—Auxiliary equipment, e.g. machines for filling tubes with sand
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The application discloses a simple pipe bending machine in the technical field of pipe bending processing. The pipe bending machine comprises a workbench and a die plate which can be rotatably arranged on the workbench, wherein the die plate is provided with a rotating piece for driving the die plate to rotate, one side of the die plate is provided with a core rod, one end of the core rod, which is close to the die plate, is provided with a combined core head, the periphery of the core rod is sleeved with a pipe fitting, one end of the pipe fitting, which is positioned on the combined core head, is provided with an end cover, the end cover is fixed on the die plate through a firmware component, and the other end of the core rod is provided with a cylinder; the combined core head comprises a cylindrical inner core head and a plurality of outer core heads arranged on the periphery of the inner core head, the outer core heads are arranged into a multi-layer structure, the multi-layer structure comprises a plurality of annular elastic pieces and a plurality of supporting pieces which are arranged in a staggered mode, each supporting piece comprises a plurality of arc-shaped supporting blocks which are arranged along the whole body of the elastic piece at intervals, and a first interval is reserved between every two adjacent supporting blocks. The application provides a combined core head with a reducing function, which is suitable for bent pipes with different pipe diameters.
Description
Technical Field
The application relates to the technical field of pipe bending, in particular to a simple pipe bending machine.
Background
Along with the wide application of numerical control pipe bending technology in a plurality of fields such as air conditioner, automobile, aviation, boats and ships, the pipe bending plays an increasingly important role in industrial development, so that the quality and performance of the pipe bending directly influence the structural rationality, safety and reliability of industrial products. The bending process of pipe fittings is an important research in the field of machine manufacturing. In cold bending forming of pipe fittings, in order to improve the geometric accuracy of products, a core rod is often used to improve the phenomena of flattening of the section of a bent pipe section and wrinkling of an inner arc. However, the specifications of the existing core rods are in one-to-one correspondence with the pipe diameters of the bent pipe pieces, and the core rods with corresponding specifications are required to be processed aiming at the pipe fittings with different pipe diameters, so that the processing cost is increased.
Disclosure of Invention
The application aims to provide a simple pipe bender with a combined core head having a reducing function, which is suitable for pipe bending of different pipe diameters.
In order to achieve the purpose of the application, the simple pipe bending machine adopts the following technical scheme:
the simple pipe bending machine comprises a workbench and a die plate which can be rotatably arranged on the workbench and is used for bending pipes, wherein a rotating piece for driving the die plate to rotate is arranged on the die plate, a core rod is arranged on one side of the die plate, a combined core head is arranged at one end, close to the die plate, of the core rod, a pipe fitting is sleeved on the periphery of the core rod, an end cover is arranged at one end, located at the combined core head, of the pipe fitting, the end cover is fixed on the die plate through a fixing component, an air cylinder is arranged at the other end of the core rod, a cylinder barrel of the air cylinder is fixed on the workbench, and a piston rod of the air cylinder is connected with the core rod; the combined core head comprises a cylindrical inner core head and a plurality of outer core heads arranged on the periphery of the inner core head, the outer core heads are arranged into a multi-layer structure, the multi-layer structure comprises a plurality of annular elastic pieces and a plurality of supporting pieces which are arranged in a staggered mode, each supporting piece comprises a plurality of arc-shaped supporting blocks which are arranged along the whole body of the elastic piece at intervals, and a first interval is reserved between every two adjacent supporting blocks. In the installation process of the combined core head for reducing, the outer diameter is changed by fixing a plurality of outer core heads on the periphery of the inner core head, and the outer core heads with different numbers are combined according to the requirements of the pipe fittings.
Preferably, the fixed subassembly includes first L type bending plate and second L type bending plate, the mould dish is equipped with the through-hole that distributes along circumference equidistance, first L type bending plate is including being located the first vertical board in the mould dish outside and arranging in the first mounting panel of mould dish top, and the second L type bending plate is including being located the second vertical board in the through-hole and arranging in the second mounting panel of mould dish top, leave the second interval that is used for supporting the fixed end cover between first vertical board and the mould dish lateral wall, be equipped with the adjusting part that is used for adjusting second interval size between first L type bending plate and the second L type bending plate. The end covers with different diameters of the sleeve pipe fitting are fixed on the die conveniently through the arrangement of the fixing assembly to adjust the second interval, and the sleeve pipe fitting is used for bending pipes with different pipe diameters.
Preferably, the adjusting component comprises a sliding groove arranged on the second mounting plate, and further comprises a bolt penetrating through the first mounting plate and entering the sliding groove, a limiting block in contact with the head of the bolt is arranged at the notch of the sliding groove, and a nut for fixing the first mounting plate on the second mounting plate penetrates through the first mounting plate and is in threaded connection with the first mounting plate. The second interval is controlled by adjusting the position of the bolt in the sliding groove, so that the fixing effect of different end covers is realized.
Preferably, the support piece of the outer core head is contacted with the inner core head and fixed through the first fixing piece, a first positioning strip is arranged on one surface of the support piece, which is used for contacting the inner core head, a first groove matched with the first positioning strip is formed in the inner core head, a first magnet is arranged on the first positioning strip, and the inner core head is made of a first ferromagnetic material attracted with the first magnet. The first ferromagnetic material can be metal iron, and the first magnet is attracted and fixed with the inner core head, so that the outer core head is fixed on the inner core head, and the combined installation is convenient.
Preferably, the supporting pieces of the two adjacent outer core heads are contacted and fixed through the second fixing piece, one surface of the supporting piece of one outer core head, which contacts the adjacent outer core head, is provided with a second positioning strip, the adjacent outer core head is provided with a second groove matched with the second positioning strip, the second positioning strip is provided with a second magnet, and the supporting piece is made of a second ferromagnetic material attracted with the second magnet. The second ferromagnetic material can be metal iron, and the second magnet is attracted and fixed with the support piece, so that two adjacent outer core heads are assembled and installed.
Preferably, the rotating piece is a motor, the center of the die plate is arranged on the workbench through a rotating shaft, and an output shaft of the motor is linked with the rotating shaft. The motor drives the die plate to rotate, and pulls the pipe fitting to bend, so that the pipe fitting bending action is realized.
Preferably, the side surface of the die plate, which is contacted with the pipe fitting, is provided with an inward concave arc surface.
Preferably, the elastic member is made of rubber material. The elastic piece made of rubber provides certain compression deformation capacity, and the outer diameter of the combined core head is further finely adjusted, so that the combined core head is suitable for pipe fittings with different pipe diameters.
Compared with the prior art, the application has the beneficial effects that:
1. according to the application, the combined core head is filled in the pipe fitting, and is used for changing the outer diameter in a combined installation mode, so that the combined core head is suitable for pipe fittings with different pipe diameters, and the manufacturing cost for manufacturing different core rods in the prior art is reduced;
2. in the installation process of the variable-diameter combined core head, the outer diameters are changed by fixing the outer core heads on the periphery of the inner core head, different numbers of outer core heads are combined according to the requirements of the pipe fittings for use, meanwhile, each outer core head comprises a plurality of annular elastic pieces and a plurality of supporting pieces which are arranged in a staggered mode, the elastic pieces provide elastic expansion and contraction amounts, different outer diameters are provided through compression deformation of the elastic pieces, the variable-diameter combined core head is suitable for the pipe fittings with different pipe diameters, and when the pipe fittings are bent, the problem of cracks caused by stress concentration caused by sharp bending of the pipe fittings in the prior art is directly avoided due to the buffer effect provided by the elastic pieces, and the quality of bent pipes is improved;
3. according to the application, only the pipe fitting is sleeved on the core rod, the end cover is arranged at the end of the pipe fitting, the end cover and the die plate are fixed into a whole through the fixing component, and at the moment, the pipe fitting is rotated along the circumferential direction of the die plate through rotating the die plate, so that the pipe fitting is stretched and bent, the whole structure is simple, the operation is convenient, and the cost is low.
Drawings
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a bottom view of FIG. 1;
FIG. 3 is a view of a tube in a bent state;
FIG. 4 is a sectional view of a combined core print;
FIG. 5 is a perspective view of a combined core print;
FIG. 6 is a block diagram of a securing assembly;
FIG. 7 is a section B-B of FIG. 6;
fig. 8 is an enlarged view of a portion a of fig. 1;
fig. 9 is an enlarged view of a portion C of fig. 4.
The device comprises a workbench 1, a die plate 2, a through hole 3, an end cover 4, a first L-shaped bent plate 5, a first mounting plate 501, a first vertical plate 502, a second L-shaped bent plate 6, a second mounting plate 601, a second vertical plate 602, a combined core head 7, an inner core head 701, a supporting block 702, an elastic piece 703, a first positioning strip 704, a first magnet 705, a second positioning strip 706, a second magnet 707, a core rod 8, a pipe fitting 9, a bolt 10, a nut 11, a sliding groove 12, a motor 13, a limiting block 14, an arc surface 15 and a cylinder 16.
Detailed Description
The present application is further illustrated below in conjunction with the specific embodiments, it being understood that these embodiments are meant to be illustrative of the application only and not limiting the scope of the application, and that modifications of the application, which are equivalent to those skilled in the art to which the application pertains, will fall within the scope of the application as defined in the appended claims.
As shown in fig. 1-9, a simple pipe bending machine comprises a workbench 1 and a die plate 2 which is rotatably arranged on the workbench 1 and used for bending pipes, wherein the side surface of the die plate 2, which is contacted with a pipe fitting 9, is provided with an inwards concave arc surface 15, the die plate 2 is provided with a rotating piece for driving the die plate 2 to rotate, the rotating piece is a motor 13, the center of the die plate 2 is arranged on the workbench 1 through a rotating shaft, and the output shaft of the motor 13 is linked with the rotating shaft; a core rod 8 is arranged on one side of the die plate 2, a combined core head 7 is arranged at one end, close to the die plate 2, of the core rod 8, a pipe fitting 9 is sleeved on the periphery of the core rod 8, an end cover 4 is assembled at one end, located at the combined core head 7, of the pipe fitting 9, the end cover 4 is fixed on the die plate 2 through a fixing component, the fixing component comprises a first L-shaped bending plate 5 and a second L-shaped bending plate 6, through holes 3 distributed at equal intervals along the circumferential direction are formed in the die plate 2, the first L-shaped bending plate 5 comprises a first vertical plate 502 located at the outer side of the die plate 2 and a first mounting plate 501 arranged above the die plate 2, the second L-shaped bending plate 6 comprises a second vertical plate 602 located in the through holes 3 and a second mounting plate 601 arranged above the die plate 2, a second interval for pressing the end cover 4 is reserved between the first vertical plate 502 and the outer side wall of the die plate 2, and an adjusting component for adjusting the second interval is arranged between the first L-shaped bending plate 5 and the second L-shaped bending plate 6; the adjusting component comprises a sliding groove 12 arranged on a second mounting plate 601, and also comprises a bolt 10 penetrating through a first mounting plate 501 and entering the sliding groove 12, wherein a notch of the sliding groove 12 is provided with a limiting block 14 contacted with the head of the bolt 10, and the bolt 10 penetrates through the first mounting plate 501 and is in threaded connection with a nut 11 for fixing the first mounting plate 501 on the second mounting plate 601; the other end of the core rod 8 is provided with an air cylinder 16, a cylinder barrel of the air cylinder 16 is fixed on the workbench 1, and a piston rod of the air cylinder 16 is connected with the core rod 8; the combined core head 7 comprises a cylindrical inner core head 701 and a plurality of outer core heads arranged on the periphery of the inner core head 701, wherein the outer core heads are arranged into a multi-layer structure, the multi-layer structure comprises a plurality of annular elastic pieces 703 and a plurality of supporting pieces, the elastic pieces 703 are arranged in a staggered mode, the elastic pieces 703 are made of rubber materials, the supporting pieces comprise a plurality of arc-shaped supporting blocks 702 which are arranged at intervals along the whole body of the elastic pieces 703, the supporting blocks 702 are adhered to the elastic pieces 703, and a first interval is reserved between every two adjacent supporting blocks 702; the support piece of the outer core head is contacted with the inner core head 701 and fixed through a first fixing piece, a first positioning strip 704 is arranged on one surface of the support piece, which is used for contacting the inner core head 701, a first groove matched with the first positioning strip 704 is formed in the inner core head 701, a first magnet 705 is arranged on the first positioning strip 704, and the inner core head 701 is made of a first ferromagnetic material attracted with the first magnet 705; the support pieces of two adjacent outer core heads are contacted and fixed through a second fixing piece, one surface of the support piece of one outer core head, which is contacted with the adjacent outer core head, is provided with a second positioning strip 706, the adjacent outer core head is provided with a second groove matched with the second positioning strip 706, the second positioning strip 706 is provided with a second magnet 707, and the support piece is made of a second ferromagnetic material attracted with the second magnet 707.
The specific working process and principle of the application are as follows: when the pipe bending device is used, the cylinder 16 is driven to work to lift the core rod 8, so that the combined core head 7 is positioned at a proper position, at the moment, the pipe fitting 9 is sleeved on the core rod 8, the combined core head 7 is filled in the pipe fitting 9, then the end cover 4 is arranged at the end of the pipe fitting 9, the end cover 4 and the die plate 2 are fixed into a whole through the fixing component, specifically, the second interval between the first vertical plate 502 and the outer side wall of the die plate 2 is controlled by sliding the adjusting bolt 10 in the sliding groove 12, so that the end cover 4 can be tightly clamped between the first vertical plate 502 and the die plate 2, then the pipe fitting 9 is rotated along the circumferential direction of the die plate 2 through rotating the die plate 2, the end cover 4 is driven to rotate through the rotation of the die plate 2, the pipe fitting 9 sleeved on the end cover 4 is stretched and bent, and the pipe bending work of the pipe fitting 9 is completed; meanwhile, in the installation process of the combined core head 7 for reducing, a plurality of outer core heads are fixed on the periphery of the inner core head 701 so as to change the outer diameter, different numbers of outer core heads are combined according to the requirement of the pipe fitting 9 for use, meanwhile, each outer core head comprises a plurality of annular elastic pieces 703 and a plurality of supporting pieces which are arranged in a staggered mode, the elastic pieces 703 provide elastic expansion and contraction quantity, and the pipe fitting 9 with different pipe diameters are provided through compression deformation of the elastic pieces 703.
Claims (5)
1. A simple pipe bending machine, which is characterized in that: the pipe bending machine comprises a workbench and a die plate which can be rotatably arranged on the workbench and is used for bending pipes, wherein a rotating piece for driving the die plate to rotate is arranged on the die plate, a core rod is arranged on one side of the die plate, a combined core head is arranged at one end of the core rod, which is close to the die plate, a pipe fitting is sleeved on the periphery of the core rod, an end cover is arranged at one end of the combined core head, the end cover is fixed on the die plate through a fixing component, an air cylinder is arranged at the other end of the core rod, a cylinder barrel of the air cylinder is fixed on the workbench, and a piston rod of the air cylinder is connected with the core rod; the combined core head comprises a cylindrical inner core head and a plurality of outer core heads arranged on the periphery of the inner core head, the outer core heads are arranged into a multi-layer structure, the multi-layer structure comprises a plurality of annular elastic pieces and a plurality of supporting pieces which are arranged in a staggered mode, each supporting piece comprises a plurality of arc-shaped supporting blocks which are arranged along the whole body of the elastic piece at intervals, and a first interval is reserved between every two adjacent supporting blocks; the fixing assembly comprises a first L-shaped bending plate and a second L-shaped bending plate, the die plate is provided with through holes distributed at equal intervals along the circumferential direction, the first L-shaped bending plate comprises a first vertical plate positioned at the outer side of the die plate and a first mounting plate arranged above the die plate, the second L-shaped bending plate comprises a second vertical plate positioned in the through holes and a second mounting plate arranged above the die plate, a second interval for propping against the fixing end cover is reserved between the first vertical plate and the outer side wall of the die plate, and an adjusting assembly for adjusting the size of the second interval is arranged between the first L-shaped bending plate and the second L-shaped bending plate; the support piece of the outer core head is contacted with the inner core head and fixed through a first fixing piece, a first positioning strip is arranged on one surface of the support piece, which is used for contacting the inner core head, a first groove matched with the first positioning strip is formed in the inner core head, a first magnet is arranged on the first positioning strip, and the inner core head is made of a first ferromagnetic material attracted with the first magnet; the support piece of two adjacent outer core heads contacts and is fixed through the second mounting, and the one side of the support piece of one outer core head contacts the adjacent outer core head is equipped with the second location strip, and adjacent outer core head has seted up with second location strip matched with second recess, and the second location strip is equipped with the second magnet, and support piece sets up to the second ferromagnetic material that attracts mutually with the second magnet.
2. The simple pipe bender according to claim 1, wherein: the adjusting component comprises a sliding groove arranged on the second mounting plate, and further comprises a bolt penetrating through the first mounting plate and entering the sliding groove, a limiting block in contact with the head of the bolt is arranged at the notch of the sliding groove, and a nut for fixing the first mounting plate on the second mounting plate penetrates through the first mounting plate and is in threaded connection with the first mounting plate.
3. The simple pipe bender according to claim 1, wherein: the rotary part is a motor, the center of the die plate is arranged on the workbench through a rotating shaft, and an output shaft of the motor is linked with the rotating shaft.
4. The simple pipe bender according to claim 1, wherein: the side surface of the die disc, which is contacted with the pipe fitting, is provided with an inward concave arc surface.
5. The simple pipe bender according to claim 1, wherein: the elastic piece is made of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226515.8A CN109226387B (en) | 2018-10-22 | 2018-10-22 | Simple pipe bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226515.8A CN109226387B (en) | 2018-10-22 | 2018-10-22 | Simple pipe bending machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109226387A CN109226387A (en) | 2019-01-18 |
| CN109226387B true CN109226387B (en) | 2023-09-15 |
Family
ID=65080820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811226515.8A Active CN109226387B (en) | 2018-10-22 | 2018-10-22 | Simple pipe bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109226387B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116274543B (en) * | 2023-03-16 | 2023-11-03 | 徐州智博机车有限公司 | Bending and shaping device for exhaust pipe machining |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11179437A (en) * | 1997-12-24 | 1999-07-06 | Nippon Light Metal Co Ltd | Bending mandrel and push-through bending method |
| RU2201308C2 (en) * | 2000-06-09 | 2003-03-27 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт автоматизированных средств производства и контроля" | Method for bending tubes and apparatus for performing the same |
| CN108097762A (en) * | 2018-01-18 | 2018-06-01 | 浙江大学 | A kind of adjustable flexible plug of diameter with new structure |
| CN108296330A (en) * | 2018-01-18 | 2018-07-20 | 浙江大学 | A kind of diameter adjustable core clavus and mandrel structure for thin-wall pipe bending forming |
| CN108580619A (en) * | 2018-04-28 | 2018-09-28 | 浙江大学 | A kind of bend pipe plug of variable-diameter |
-
2018
- 2018-10-22 CN CN201811226515.8A patent/CN109226387B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11179437A (en) * | 1997-12-24 | 1999-07-06 | Nippon Light Metal Co Ltd | Bending mandrel and push-through bending method |
| RU2201308C2 (en) * | 2000-06-09 | 2003-03-27 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт автоматизированных средств производства и контроля" | Method for bending tubes and apparatus for performing the same |
| CN108097762A (en) * | 2018-01-18 | 2018-06-01 | 浙江大学 | A kind of adjustable flexible plug of diameter with new structure |
| CN108296330A (en) * | 2018-01-18 | 2018-07-20 | 浙江大学 | A kind of diameter adjustable core clavus and mandrel structure for thin-wall pipe bending forming |
| CN108580619A (en) * | 2018-04-28 | 2018-09-28 | 浙江大学 | A kind of bend pipe plug of variable-diameter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109226387A (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112846851B (en) | Machining and positioning method for anti-deformation thin-wall pipe fitting | |
| CN204771448U (en) | Two side shafts of electric tricycle rear axle differential hold installation device | |
| CN105081738A (en) | Installation device for bilateral bearings of rear axle differential of electric tricycle | |
| US20190030664A1 (en) | Wheel bolt pressing device | |
| CN109226387B (en) | Simple pipe bending machine | |
| CN110744327A (en) | Machining clamp for cavity type casting parts | |
| CN101797688A (en) | Device and method for positioning, clamping and installing any curved sheet piece in plane | |
| CN219944231U (en) | Thin-wall stainless steel pipe bending device | |
| CN211589943U (en) | Press mounting mechanism and press mounting clamp comprising same | |
| CN211183737U (en) | Positioning device for assembling motor commutator and rotor | |
| CN106567883A (en) | Nut clamping mechanism for vehicle assembly | |
| CN110918729A (en) | Metal pipe flaring-free roll forming device | |
| CN208825321U (en) | A kind of cold stamping shaped punch die locking device of stainless steel tube | |
| CN211565723U (en) | Plunger clamp spring tool for press fitting | |
| CN212250775U (en) | Flange welding short nut | |
| CN220596681U (en) | Positioning and clamping mechanism | |
| CN220982042U (en) | Pressure-resistant automobile air conditioner condenser pressing plate | |
| CN219284196U (en) | Coaxiality detection device for arc-shaped cylinder | |
| CN219704752U (en) | Fixed fixture for metal casting detection | |
| CN216177324U (en) | Special clamp for valve body tapping machine | |
| CN208214897U (en) | A kind of clamping assembly of auto parts | |
| CN215144183U (en) | Multi-station bending device for bending automobile plate parts | |
| CN212444240U (en) | Hydraulic clamp suitable for machining steering gear shell | |
| CN211163057U (en) | Fixture structure for rough and fine turning of core shaft | |
| CN203700428U (en) | Adjustable centre device with floating displacement |
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 |