CN104972619B - A kind of full-automatic Leave out thread mould of front mould - Google Patents
A kind of full-automatic Leave out thread mould of front mould Download PDFInfo
- Publication number
- CN104972619B CN104972619B CN201510356179.9A CN201510356179A CN104972619B CN 104972619 B CN104972619 B CN 104972619B CN 201510356179 A CN201510356179 A CN 201510356179A CN 104972619 B CN104972619 B CN 104972619B
- Authority
- CN
- China
- Prior art keywords
- gear
- mould
- thread
- leave out
- full
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C2045/4042—Ejector constructions; Ejector operating mechanisms driven by rack and pinion means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention discloses a kind of full-automatic Leave out thread mould of front mould, including train wheel bridge, gear pressure plate, front template, front cavity, gear drive apparatus, thread spindle, metallic sheath, grub screw, first spring and bullet pin, the power gear being engaged successively is provided between train wheel bridge and gear pressure plate, transition gear and travelling gear, the gear drive apparatus is fixed on the spline that in gear pressure plate and its output shaft top is embedded in power gear, the upper end of the thread spindle is embedded in the spline of travelling gear, the metallic sheath is fixedly mounted between front template and front cavity, treat that the pipe fitting of Leave out thread is located at below metallic sheath, in the lower end insertion metallic sheath and pipe fitting of thread spindle, grub screw, first spring and bullet pin are sequentially connected and are installed in the centre bore of thread spindle.Inventive die is easy to process, upper injection machine is simple to operate, and is not limited by product diameter of thread size and the number of turns, The invention also achieves the full-automatic Leave out thread of front mould, embodies advanced mold design and manufacturing technology.
Description
Technical field
The present invention relates to Leave out thread mould applications, more particularly, to a kind of full-automatic Leave out thread mould of front mould.
Background technology
The mould structure of current front mould Leave out thread typically twitches tooth bar using oil cylinder, and thread spindle is extracted out using screw thread facing
Structure, the number of turns small to the diameter of thread is few to be realized, but with the continuous diversified development of product, performance requirement is improved, spiral shell
Line diameter is small, thread turns can not reach basic functional requirement less, and existing structure is because diameter of thread increasing, spiral shell
The increase of the line number of turns, tooth bar will be made very long, along with long oil cylinder so that processing, storage, transport, upper injection machine etc.
Everyway becomes abnormal difficult.Tooth bar is twitched using the structure of screw thread facing extraction thread spindle because screw thread facing is needed using oil cylinder
The injection pressure on thread spindle is born, the matched moulds that still suffers from worn is touched and touches the pressure worn, screw thread facing, which is easily damaged, can also go out
Existing facing kills phenomenon.
The mould of another current front mould Leave out thread is artificial after being molded to take out mold insert using movable insert structure is done,
Production efficiency will be reduced again, increased the workload of workman, also do not realized automated production.
The content of the invention
The diameter of thread is big to overcome can not meet described in above-mentioned prior art by the present invention, the processing more than thread turns will
Ask, processed complex and can not realize that the defect of automated production disclosure satisfy that the diameter of thread is big, more than thread turns there is provided a kind of
Processing request, processing is simple and can realize the full-automatic Leave out thread mould of front mould of automated production.
In order to solve the above technical problems, technical scheme is as follows：
A kind of full-automatic Leave out thread mould of front mould, the mould includes train wheel bridge, gear pressure plate, front template, front cavity, tooth
Wheel drive equipment, thread spindle, metallic sheath, grub screw, the first spring and play pin, the train wheel bridge, gear pressure plate, front template and
Front cavity is sequentially connected, and the power gear being engaged successively, transition gear and travelling gear are provided between train wheel bridge and gear pressure plate,
The gear drive apparatus is fixed on the spline that in gear pressure plate and its output shaft top is embedded in power gear, the thread spindle
Upper end be embedded in the spline of travelling gear, the metallic sheath is fixedly mounted between front template and front cavity, treats Leave out thread
Pipe fitting is located at below metallic sheath, in the lower end insertion metallic sheath and pipe fitting of thread spindle, the grub screw, the first spring and bullet pin
It is sequentially connected and is installed in the centre bore of thread spindle.
In a kind of preferred scheme, the mould also includes limited screw and second spring, and the second spring is installed
Between front template and gear pressure plate, the limited screw is through front template and second spring and tightens up on train wheel bridge.The
Two springs are easy to the faying face of gear pressure plate and front template to open.
In a kind of preferred scheme, the front template is internally provided with limit chamber, and the screw terminal of limited screw is located at limit
In the chamber of position.Limited screw is used for spacing to front template progress.
In a kind of preferred scheme, the power gear, transition gear and travelling gear pass through train wheel bridge and tooth respectively
The multiple bearings set on wheel pressing plate are fixed between train wheel bridge and gear pressure plate.Bearing had both been easy to the rotation of gear, while again right
Gear carries out spacing.
In a kind of preferred scheme, the gear pressure plate is tightened up by the first hexagonal socket head cap screw and is fixed on train wheel bridge.
In a kind of preferred scheme, the front cavity is tightened up by the second hexagonal socket head cap screw and is fixed on front template.
In a kind of preferred scheme, the metallic sheath is that convex shoulder is provided with bronze bushing, the bronze bushing, and bronze bushing leads to
Convex shoulder is crossed to be arranged between front template and front cavity.
In a kind of preferred scheme, the gear drive apparatus is motor.
In a kind of preferred scheme, the motor is hydraulic motor.Hydraulic motor has small volume relative to oil cylinder
Feature, is easy to mould processing, storage, transport and upper injection machine.
The operation principle of the full-automatic Leave out thread mould of front mould of the present invention is：
After product injection moulding, injection machine first opens a segment distance, and this deviates from product apart from enough thread spindle threaded portions
Distance, product is the pipe fitting for treating Leave out thread, and while injection machine is opened, front template is beaten under the active force of second spring
PL (I) die joint is opened, then stops die sinking, PL (I) die joint is the faying face of gear pressure plate and front template.PL (I) die joint
During opening, because thread spindle does not deviate from product also, thread spindle can follow front template to move together in the presence of screw thread, and spiral shell
Line axle is that spline is connected with travelling gear, can slide but not pull the thread of product.After PL (I) die joint is opened, open
Hydrodynamic pressure motor, hydraulic motor drives power gear to rotate, and power gear drives transition gear to rotate, and transition gear drives transmission
Pinion rotation, travelling gear drives thread spindle rotation using the spline on gear, because travelling gear and thread spindle are splines
Groove is connected, and can effectively realize the transmission and free slip of rotatory force.Pin is played outwards to eject under the elastic force effect of the first spring,
Thread spindle rotational slide in bronze bushing under the active force and the Leave out thread active force of product for playing pin eventually disengages from the spiral shell of product
Line.
After Leave out thread completely disengages from the screw thread of product, hydraulic motor stops operating, and injection machine continues to open, while mould
Front and rear mould continues to open, and front template stops opening under the limitation of limited screw, the die joint PL (II) when mould continues to open
Open, die joint PL (II) is the faying face of front template and rear pattern plate, next die sinking action just routinely completes remaining
Production cycle.
Compared with prior art, the beneficial effect of technical solution of the present invention is：The full-automatic Leave out thread mould of front mould of the present invention
Including train wheel bridge, gear pressure plate, front template, front cavity, gear drive apparatus, thread spindle, metallic sheath, grub screw, the first bullet
Spring and bullet pin, the train wheel bridge, gear pressure plate, front template and front cavity are sequentially connected, are provided between train wheel bridge and gear pressure plate
Power gear, transition gear and the travelling gear being engaged successively, the gear drive apparatus is fixed in gear pressure plate and its is defeated
Shaft top is embedded in the spline of power gear, and the upper end of the thread spindle is embedded in the spline of travelling gear, the metallic sheath
It is fixedly mounted between front template and front cavity, treats that the pipe fitting of Leave out thread is located at below metallic sheath, the lower end insertion gold of thread spindle
In category set and pipe fitting, the grub screw, the first spring and bullet pin are sequentially connected and are installed in the centre bore of thread spindle.This hair
The bright full-automatic Leave out thread mould of front mould is easy to process, upper injection machine is simple to operate, and not by product diameter of thread size and the number of turns
Limitation, disclosure satisfy that the diameter of thread is big, the Product processing requirement more than thread turns, expand the scope of product development；This hair
It is bright to realize the full-automatic Leave out thread of front mould, automatic continuous production requirement is met, advanced mold design and manufacture skill is embodied
Art.
Brief description of the drawings
Fig. 1 is the structural representation of the matched moulds state of the present invention.
Fig. 2 be the present invention die sinking during die joint PL (II) open and motor it is not actuated when view.
Fig. 3 is that the motor starting of the present invention twists out view when die joint PL (II) is opened after thread spindle.
Wherein：1st, train wheel bridge；2nd, gear pressure plate；3rd, front template；4th, front cavity；5th, motor；6th, thread spindle；7th, bronze bushing；
8th, grub screw；9th, the first spring；10th, pin is played；11st, power gear；12nd, transition gear；13rd, travelling gear；14th, pipe fitting；15、
Limited screw；16th, second spring；17th, limit chamber；18th, the first hexagonal socket head cap screw；19th, the second hexagonal socket head cap screw；20th, convex shoulder.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
In order to more preferably illustrate the present embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be appreciated that some known features and its explanation, which may be omitted, in accompanying drawing
's.
Technical scheme is described further with reference to the accompanying drawings and examples.
Embodiment 1
As shown in figure 1, a kind of full-automatic Leave out thread mould of front mould, the mould includes train wheel bridge 1, gear pressure plate 2, front mould
Plate 3, front cavity 4, motor 5, thread spindle 6, bronze bushing 7, grub screw 8, the first spring 9 and bullet pin 10, the train wheel bridge 1, tooth
Wheel pressing plate 2, front template 3 and front cavity 4 are sequentially connected, and the power gear being engaged successively is provided between train wheel bridge 1 and gear pressure plate 2
11st, transition gear 12 and travelling gear 13, the motor 5 are fixed in gear pressure plate 2 and its output shaft top insertion power teeth
The spline of wheel 11, the upper end of the thread spindle 6 is embedded in the spline of travelling gear 13, before the bronze bushing 7 is fixedly mounted on
Between template 3 and front cavity 4, treat that the pipe fitting 14 of Leave out thread is located at the lower section of bronze bushing 7, the lower end insertion He of bronze bushing 7 of thread spindle 6
In pipe fitting 14, the grub screw 8, the first spring 9 and bullet pin 10 are sequentially connected and are installed in the centre bore of thread spindle 6.
In specific implementation process, the mould also includes limited screw 15 and second spring 16, the second spring 16
Between front template 3 and gear pressure plate 2, the limited screw 15 is through front template 3 and second spring 16 and tightens up
On train wheel bridge 1.Second spring 16 is easy to the faying face of gear pressure plate 2 and front template 3 to open.
In specific implementation process, the front template 3 is internally provided with limit chamber 17, and the screw terminal of limited screw 15 is located at
In limit chamber 17.Limited screw 15 is spacing for being carried out to front template 3.
In specific implementation process, the power gear 11, transition gear 12 and travelling gear 13 pass through train wheel bridge 1 respectively
And the multiple bearings set in gear pressure plate 2 are fixed between train wheel bridge 1 and gear pressure plate 2.Bearing had both been easy to the rotation of gear, together
When again to gear carry out it is spacing.
In specific implementation process, the gear pressure plate 2 is tightened up by the first hexagonal socket head cap screw 18 and is fixed on train wheel bridge 1,
The front cavity 4 is tightened up by the second hexagonal socket head cap screw 19 and is fixed on front template 3.
In specific implementation process, convex shoulder 20 is provided with the bronze bushing 7, before bronze bushing 7 is arranged on by convex shoulder 20
Between template 3 and front cavity 4.
In specific implementation process, the motor 5 is hydraulic motor.Hydraulic motor has the spy of small volume relative to oil cylinder
Point, is easy to mould processing, storage, transport and upper injection machine.
The operation principle of the full-automatic Leave out thread mould of front mould of the present invention is：
After product injection moulding, injection machine first opens a segment distance, and this deviates from product apart from enough threaded portions of thread spindle 6
Distance, product is the pipe fitting 14 for treating Leave out thread, while injection machine is opened, as shown in Fig. 2 front template 3 is in the second bullet
PL (I) die joint is opened under the active force of spring 16, then stops die sinking, PL (I) die joint is gear pressure plate 2 and front template 3
Faying face.When PL (I) die joint is opened, because thread spindle 6 does not deviate from product also, thread spindle 6 can in the presence of screw thread with
Front template 3 to move together, and thread spindle 6 is that spline is connected with travelling gear 13, can slide but not pull product
Thread.After PL (I) die joint is opened, start hydraulic motor, hydraulic motor drives power gear 11 to rotate, and power gear 11 drives
Transition gear 12 is rotated, and transition gear 12 is rotated with nutating gear 13, and travelling gear 13 is driven using the spline on gear
Thread spindle 6 rotates, and because travelling gear 13 and thread spindle 6 are that spline is connected, can effectively realize transmission and the freedom of rotatory force
Slip.Play pin 10 outwards to eject under the elastic force effect of first spring 9, thread spindle 6 is playing the active force and product of pin 10
Rotational slide eventually disengages from the screw thread of product in bronze bushing 7 under Leave out thread active force.
After Leave out thread completely disengages from the screw thread of product, hydraulic motor stops operating, and injection machine continues to open, while mould
Front and rear mould continues to open, and front template 3 stops opening under the limitation of limited screw 15, as shown in figure 3, when mould continues to open
Die joint PL (II) is opened, and die joint PL (II) is the faying face of front template 3 and rear pattern plate, and die sinking next just routinely is moved
Make to complete the remaining production cycle.
The length of bronze bushing 7 is according to the opening climb displacement of PL (I) die joint, it is ensured that thread spindle 6 deviates from product screw thread
There is enough length to stay in bronze bushing 7 afterwards.The compression ratio of first spring 9 is adjusted with ejection stroke by grub screw 8, makes bullet
It is appropriate to exert oneself.Play pin 10 and can guarantee that the ridge of product will not be damaged because of thread spindle 6 by factors such as frictional force.
The full-automatic Leave out thread mould of front mould of the present invention is easy to process, upper injection machine is simple to operate and not straight by product screw thread
The limitation of footpath size and the number of turns, disclosure satisfy that the diameter of thread is big, the Product processing requirement more than thread turns, expand product development
Scope；The present invention realizes the full-automatic Leave out thread of front mould, meets automatic continuous production requirement, embodies advanced mould and set
Meter and manufacturing technology.
The same or analogous part of same or analogous label correspondence；
Term the being given for example only property explanation of position relationship described in accompanying drawing, it is impossible to be interpreted as the limitation to this patent；
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (10)
1. a kind of full-automatic Leave out thread mould of front mould, it is characterised in that the mould include train wheel bridge, gear pressure plate, front template,
Front cavity, gear drive apparatus, thread spindle, metallic sheath, grub screw, the first spring and bullet pin, the train wheel bridge, gear pressure
Plate, front template and front cavity are sequentially connected, and the power gear being engaged successively, transition gear are provided between train wheel bridge and gear pressure plate
And travelling gear, the gear drive apparatus be fixed in gear pressure plate and its output shaft top be embedded in power gear spline
Groove, the upper end of the thread spindle is embedded in the spline of travelling gear, the metallic sheath be fixedly mounted on front template and front cavity it
Between, treat that the pipe fitting of Leave out thread is located at below metallic sheath, in the lower end insertion metallic sheath and pipe fitting of thread spindle, the grub screw,
First spring and bullet pin are sequentially connected and are installed in the centre bore of thread spindle.
2. the full-automatic Leave out thread mould of front mould according to claim 1, it is characterised in that the mould also includes spacing spiral shell
Silk and second spring, the second spring are arranged between front template and gear pressure plate, the limited screw through front template and
Second spring and tighten up on train wheel bridge.
3. the full-automatic Leave out thread mould of front mould according to claim 2, it is characterised in that the front template is internally provided with
Limit chamber, the screw terminal of limited screw is located in limit chamber.
4. the full-automatic Leave out thread mould of front mould according to claim 1, it is characterised in that the power gear, transition tooth
Wheel and travelling gear are fixed between train wheel bridge and gear pressure plate by the multiple bearings set on train wheel bridge and gear pressure plate respectively.
5. the full-automatic Leave out thread mould of front mould according to claim 1, it is characterised in that the gear pressure plate passes through first
Hexagonal socket head cap screw, which is tightened up, to be fixed on train wheel bridge.
6. the full-automatic Leave out thread mould of front mould according to claim 1, it is characterised in that the front cavity passes through second glass
Head screw, which is tightened up, to be fixed on front template.
7. the full-automatic Leave out thread mould of front mould according to claim 1, it is characterised in that the metallic sheath is bronze bushing.
8. the full-automatic Leave out thread mould of front mould according to claim 7, it is characterised in that be provided with the bronze bushing convex
Shoulder, bronze bushing is arranged between front template and front cavity by convex shoulder.
9. the full-automatic Leave out thread mould of front mould according to claim 1, it is characterised in that the gear drive apparatus is horse
Reach.
10. the full-automatic Leave out thread mould of front mould according to claim 9, it is characterised in that the motor is hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510356179.9A CN104972619B (en) | 2015-06-25 | 2015-06-25 | A kind of full-automatic Leave out thread mould of front mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510356179.9A CN104972619B (en) | 2015-06-25 | 2015-06-25 | A kind of full-automatic Leave out thread mould of front mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104972619A CN104972619A (en) | 2015-10-14 |
| CN104972619B true CN104972619B (en) | 2017-07-11 |
Family
ID=54269838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510356179.9A Active CN104972619B (en) | 2015-06-25 | 2015-06-25 | A kind of full-automatic Leave out thread mould of front mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104972619B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670399A (en) * | 2022-03-07 | 2022-06-28 | 昱高精密制造(深圳)有限公司 | Plastic forming die |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6238202B1 (en) * | 1999-02-26 | 2001-05-29 | Unique Mould Makers Limited | Apparatus for ejecting threaded injection molded parts |
| CN1583395A (en) * | 2004-05-25 | 2005-02-23 | 何同安 | Automatic demoulding device with thread plastic piece in injection mould |
| JP5426346B2 (en) * | 2009-12-07 | 2014-02-26 | 東洋機械金属株式会社 | Injection molding machine |
| CN202805561U (en) * | 2012-07-27 | 2013-03-20 | 联塑科技发展(武汉)有限公司 | Automatic thread die stripping structure on slider |
| CN204869520U (en) * | 2015-06-25 | 2015-12-16 | 广东联塑科技实业有限公司 | Full -automatic screw thread mould that takes off of front mould |
-
2015
- 2015-06-25 CN CN201510356179.9A patent/CN104972619B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104972619A (en) | 2015-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104972619B (en) | A kind of full-automatic Leave out thread mould of front mould | |
| CN205217995U (en) | Die mould with adjustable | |
| CN201291437Y (en) | Diamond bit mould draw-off gear | |
| CN204869520U (en) | Full -automatic screw thread mould that takes off of front mould | |
| CN101695862A (en) | Bent pipe injection mould | |
| CN104589595B (en) | Mold capable of simultaneously drawing out slider insert during mold opening | |
| CN208894875U (en) | A kind of cold drawing steel tube heading machine | |
| CN106077118B (en) | A kind of continuous processing device and processing method of ultrafine grain metal section bar | |
| CN204367329U (en) | A kind of internal thread automatic core-pulling mould | |
| CN206623339U (en) | A kind of screw thread core pulling mould unloading structure | |
| CN107900974A (en) | Large and medium-sized bearing of asynchronous, axle sleeve draw-off gear and method | |
| CN211231105U (en) | One-time forming oil cylinder for die casting | |
| CN207059119U (en) | A kind of threaded demoulding mechanism of mould | |
| CN207656623U (en) | Large and medium-sized bearing of asynchronous, axle sleeve draw-off gear | |
| CN203426179U (en) | Wire drawing machine | |
| CN206357582U (en) | The anti-type circle nut injection mold that fractures | |
| CN201405014Y (en) | Manufacture tool of wrench shear type high intensity bolt | |
| CN204936083U (en) | Ball screw moves back thread systems | |
| CN206426384U (en) | A kind of Injection Mould of Automatic Thread Demoulding tool | |
| CN209466594U (en) | A kind of novel preceding mould automatic threads demoulding mold | |
| CN209191112U (en) | A kind of processing of mold is with pouring device | |
| CN207857756U (en) | A kind of Step Shaft forging mold | |
| CN207256762U (en) | A kind of injection mold with inclined hole ejecting mechanism | |
| CN207240914U (en) | Fiber-reinforced resin matrix compound material Varying-thickness membranous disc shaping dies | |
| CN103639991B (en) | A kind of Chute nail puller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |