CN220700080U - Magnetic core cutting machine - Google Patents
Magnetic core cutting machine Download PDFInfo
- Publication number
- CN220700080U CN220700080U CN202322312269.0U CN202322312269U CN220700080U CN 220700080 U CN220700080 U CN 220700080U CN 202322312269 U CN202322312269 U CN 202322312269U CN 220700080 U CN220700080 U CN 220700080U
- Authority
- CN
- China
- Prior art keywords
- clamping piece
- processed
- clamping
- cutting machine
- core cutting
- 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
- 238000005520 cutting process Methods 0.000 title claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 107
- 230000007246 mechanism Effects 0.000 claims description 26
- 238000003754 machining Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 230000007547 defect Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a magnetic core cutting machine which comprises a main frame, a feeding device, a clamping device, a cutting device and a control device, wherein a material to be processed is conveyed to the clamping device by the feeding device, and the cutting device is used for processing the material to be processed. The clamping device comprises a first clamping piece and a second clamping piece which are positioned on the same axis, at least one clamping piece can move along the axis direction, and when the cutting device is used for processing, the first clamping piece and the second clamping piece are driven to synchronously rotate around the axis. According to the utility model, the material to be processed is tightly clamped between the first clamping piece and the second clamping piece through the axial movement of the first clamping piece or the second clamping piece, and the material to be processed rotates along with the rotation of the first clamping piece and the second clamping piece, and no relative movement exists between the material to be processed and the first clamping piece and the second clamping piece, so that friction marks are not generated on the contact surfaces of the material to be processed and the first clamping piece and the second clamping piece, the processed product has good quality and no abrasion defect.
Description
Technical Field
The utility model belongs to the field of magnetic core manufacturing and processing, and particularly relates to a magnetic core cutting machine for processing a magnetic core.
Background
Ferrite magnetic materials have wide application in the fields of computers, microwave communication, televisions, automatic control, aerospace, instruments and meters, medical treatment, automobile industry and the like. Along with the expansion of the application range of ferrite magnetic materials, the shape and structure of the magnetic core made of ferrite materials are gradually diversified, so that the situation that some magnetic core structures cannot be directly extruded and molded exists, and thus, working procedures such as cutting, polishing and the like are needed to be carried out on a semi-finished magnetic core product so as to obtain the magnetic core with a required structure or shape.
There is a magnetic core having an annular groove structure on a side surface thereof, the annular groove being formed by cutting a material to be processed by a core cutting machine. Because the magnetic core is mostly small in size, the magnetic core cannot be held and processed by utilizing structures such as clamping claws at two ends of the magnetic core, a clamping groove is arranged at one end of a material to be processed, a thimble is arranged at the other end of the material to be processed, and the material to be processed is clamped between the thimble and the clamping groove by applying pressure to the thimble so as to carry out cutting processing. During processing, the clamping groove drives the material to be processed to rotate, the ejector pin does not rotate, so that relative motion exists between the material to be processed and the ejector pin, the ejector pin is generally made of a metal material, and the material to be processed of the magnetic core is softer than the metal material, so that friction marks can exist on the surface of the magnetic core after cutting processing is finished, and the product quality is affected.
Disclosure of Invention
In view of the problems of the prior art, a main object of the present utility model is to provide a core cutting machine that does not cause friction marks to be generated on a core during cutting.
In order to achieve the above main object, the present utility model provides a magnetic core cutting machine, comprising a main frame, a feeding device, a clamping device, a cutting device and a control device, wherein the feeding device, the pushing device, the conveying device and the control device are all arranged on the main frame, a material to be processed is conveyed to the clamping device by the feeding device, after being clamped at a processing position by the clamping device, the cutting device processes the material to be processed, the control device controls the actions of the feeding device, the clamping device and the cutting device, the clamping device comprises a first part with a first clamping piece and a second part with a second clamping piece, wherein the first clamping piece and the second clamping piece are positioned on the same axis, and at least one clamping piece can move along the axis direction to clamp or release the material to be processed; when the cutting device processes the material to be processed, the first clamping piece and the second clamping piece are driven to synchronously rotate around the axis, so that the clamped material to be processed is driven to rotate.
According to the scheme, the material to be processed is conveyed between the first clamping piece and the second clamping piece through the feeding device, the material to be processed is tightly clamped between the first clamping piece and the second clamping piece through the axial movement of the first clamping piece or the second clamping piece, and when the material to be processed rotates along with the rotation of the first clamping piece and the second clamping piece, the cutting device processes the side face of the material to be processed so as to form the annular groove. Because the first clamping piece, the second clamping piece and the material to be processed rotate simultaneously, the material to be processed does not move or rotate relative to each other, friction marks on the surfaces of the material to be processed, which are in contact with the first clamping piece and the second clamping piece, are avoided, and the processed product has good quality and no abrasion defect.
According to one embodiment of the utility model, the first clamping member and the second clamping member are driven by the same motor.
According to the scheme, the first clamping piece and the second clamping piece are driven by the same motor, so that the rotation of the first clamping piece and the rotation of the second clamping piece are synchronous, the rotation speed difference is avoided, and the fact that the material to be processed does not have relative movement between the first clamping piece and the second clamping piece is further ensured, and abrasion defects cannot be generated.
According to one embodiment of the utility model, the first clamping piece is provided with a clamping groove matched with the material to be processed in a shape and an air hole positioned at the axis, the second clamping piece can move towards or away from the first clamping piece along the axis direction, and the material to be processed is pushed to the processing position when the second clamping piece moves towards the first clamping piece and is partially accommodated in the clamping groove.
According to the scheme, the clamping groove matched with the material to be processed is formed in the first clamping piece, the material to be processed can be driven to rotate better when the first clamping piece rotates, so that no relative motion between the first clamping piece and the second clamping piece rotating synchronously can be further guaranteed, a processed product has no quality defect, after processing is finished, gas can be introduced into the air hole, the processed product is separated from the clamping groove, and the processed product falls into the receiving device under the action of gravity.
According to one specific embodiment of the utility model, the second clamping piece is a thimble, and the front end surface of the thimble is smaller than the end surface of the material to be processed contacted with the thimble.
According to the scheme, the second clamping piece is arranged in the form of the thimble with the front end smaller than the end face of the material to be machined, when the thimble contacts the material to be machined and pushes the material to be machined to the machining position, the thimble uniformly pushes the material to be machined, the material to be machined cannot generate the phenomenon that the stress is uneven and deflects, and therefore the relative position of the material to be machined and the first clamping piece can be guaranteed, and machining precision is high when the annular groove is machined.
According to one embodiment of the utility model, the motor drives the first and second clamps via first and second belts, respectively.
According to the scheme, the motor drives the first clamping piece and the second clamping piece through the belt, so that the motor rotates more stably.
According to one specific embodiment of the utility model, the feeding device comprises a vibration feeding mechanism, a conveying channel and a pushing mechanism, wherein the material to be processed enters the conveying channel from the vibration feeding mechanism and is pushed between the first clamping piece and the second clamping piece by the pushing mechanism after being output from an outlet of the conveying channel.
According to the scheme, the material to be processed is pushed between the first clamping piece and the second clamping piece through the vibration feeding mechanism, the conveying channel and the pushing mechanism, and then the material to be processed is moved to the processing position through the axial movement of the first clamping piece or the second clamping piece or both, so that automatic accurate positioning can be realized, and the processing is convenient.
According to one embodiment of the utility model, the pushing mechanism comprises a pushing rod and a cylinder driving the pushing rod to reciprocate.
According to the scheme, the air cylinder pushes the pushing rod to move, so that accurate control of the movement of the pushing rod can be realized, and the material to be processed is pushed to a required position.
According to one specific embodiment of the utility model, the feeding device further comprises a first adjusting structure for adjusting the position of the conveying channel.
According to the scheme, the position of the conveying channel is adjusted through the first adjusting structure, so that the position of the material to be processed output from the conveying channel can be flexibly changed and adjusted, and the processing of various materials is facilitated or adapted.
According to one specific embodiment of the utility model, the feeding device further comprises a second adjusting structure for adjusting the position of the pushing mechanism.
According to the scheme, the position of the pushing mechanism is adjusted through the second adjusting structure, so that the position of the material to be processed, which is pushed to the position between the two clamping pieces, can be flexibly changed and adjusted, and the material processing device is convenient to process or is suitable for processing various materials.
According to one embodiment of the utility model, the core cutting machine further comprises a receiving device, at least a part of which is arranged below the machining position or at least a part of which is movable below the machining position.
According to the scheme, the material receiving device is arranged below the processing position or can move to the position below the processing position, and the processed material can freely fall into the material receiving device through gravity to finish receiving.
In order to more clearly illustrate the above objects, technical solutions and advantages of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic top view of an embodiment of the present utility model;
FIG. 3 is a schematic structural diagram of a feeding device according to an embodiment of the present utility model;
FIG. 4 is a schematic view of the structure of the embodiment of the present utility model with the feeding device removed;
FIG. 5 is a schematic view of the structure of the clamping device (with the outer protective cover removed) in an embodiment of the utility model;
FIG. 6 is a partial schematic view of a first clamping member according to an embodiment of the present utility model;
fig. 7 is a schematic view of a cutting device according to an embodiment of the present utility model.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but it will be readily understood by those skilled in the art that the present utility model may be practiced otherwise than as described herein. Accordingly, other embodiments that may be known to those skilled in the art based on the examples described herein are within the scope of the present application.
As shown in fig. 1 and 2, the core cutting machine 100 includes a main frame 10, a feeding device 20, a clamping device 30, a cutting device 40, and a control device 50, wherein the feeding device 20, the clamping device 30, the cutting device 40, and the control device 50 are all mounted and fixed on a table top 11 of the main frame 10, and a control button may be provided on the control device 50 to control the actions of each device, and/or a control program is provided to control the actions of each device through the program. The material to be processed is transported between the first portion 31 and the second portion 32 of the clamping device 30 by the feeding device 20, then clamped, the side surface of the annular groove to be processed is exposed, the material to be processed is processed by the cutting device 40, and the processed material can fall into a receiving device (not shown) arranged below the processing position.
The material receiving device can be integrally arranged below the processing position, a part of the material receiving device can be positioned below the processing position, the processed material falls into the part and then enters other parts, the material receiving device can be arranged to be a part or the whole of the material receiving device is arranged to be movable, the material receiving device moves to the lower part of the processing position after the processing is finished so as to receive the processed material, and the material receiving device moves to the avoiding position during the processing so as to facilitate the processing.
Fig. 3 shows a structure of the feeding device 20, as shown in fig. 3, and referring to fig. 2, the feeding device 20 includes a vibration feeding mechanism 21, a conveying channel 22, and a pushing mechanism, where the pushing mechanism includes a pushing rod 24 and an air cylinder 25, the air cylinder 25 drives the pushing rod 24 to reciprocate along a linear direction, and the feeding device 20 further includes a first adjusting structure 23 for adjusting a position of the conveying channel 22 and a second adjusting structure 26 for adjusting a position of the pushing mechanism. The material to be processed enters the conveying passage 22 from the edge after being vibrated by the vibration feeding mechanism 21, and then the material to be processed at the outlet 221 of the conveying passage 22 is pushed between the two parts 31, 32 of the clamping device 30 by the pushing rod 24. Wherein the conveying channel 22 may have guiding structures therein for adjusting the position of the material to be processed in order to ensure that the respective material to be processed output from the outlet 221 of the conveying channel 22 is pushed by the pushing bar 24 to the holding device 30 in the same way. The first adjusting structure 23 can adjust the position of the conveying channel 22 to facilitate the pushing of the material to be processed by the pushing mechanism, and the second adjusting structure 26 can adjust the position of the pushing mechanism to enable the material to be processed to be pushed to a proper position, and the conveying channel 22 and the pushing mechanism are arranged to be adjustable to facilitate the processing of materials with various shapes, so that the pushing rod 24 pushes the material to be processed to a proper position.
Fig. 4 shows the structure of the core cutting machine with the feeding device removed, and fig. 5 shows the structure with the holding device removed from the outer protective cover. As shown in fig. 4 and 5, the clamping device includes a first portion 31, a second portion 32 and a driving motor 33, wherein the first portion 31 and the second portion are externally provided with an outer protection cover, the driving motor 33 and a driving shaft 331 are arranged below the table top 11 and are fixed on the main frame 10 through fixing brackets 333 and 334, the first portion 31 includes a first rotating shaft 311 and supporting frames 312 and 313, the second portion 32 includes a second rotating shaft 321 and supporting frames 322 and 323, the first rotating shaft 311 is driven by a first belt 335 and rotates under the support of the supporting frames 312 and 313, and the second rotating shaft 321 is driven by a second belt 336 and rotates under the support of the supporting frames 322 and 323. The first rotation shaft 311 and the second rotation shaft 321 are located on the same axis, i.e., rotate around the same axis.
Referring to fig. 5 and 6, a front end of the first rotating shaft 311 is provided with a coaxial clamping head 3111 serving as a first clamping member, a clamping groove 3112 is provided on the clamping head 3111, an air hole 3113 is provided in the center of the clamping groove 3112, a thimble 3211 serving as a second clamping member is coaxially provided at a front end of the second rotating shaft 321, wherein the thimble 3211 can move axially relative to the second rotating shaft 321 under the action of a driving mechanism (not shown), and the thimble 3211 rotates synchronously with the second rotating shaft 321. The material M to be processed is pushed between the clamping head 3111 and the ejector pin 3211 by the pushing rod 24, the axes of the first rotating shaft 311 and the second rotating shaft 321 pass through the center of the material M to be processed, then the ejector pin 3211 is pushed to move towards the clamping head 3111 along the axes, the material M to be processed enters the clamping groove 3112 until being abutted against the bottom wall of the clamping groove 3112, the material M to be processed is tightly clamped in the processing position by the clamping head 3111 and the ejector pin 3211, and a part of the material M to be processed is accommodated in the clamping groove 3112, and the other part is exposed to facilitate processing.
Fig. 7 shows a structure of the cutting device 40, as shown in fig. 7, the cutting device 40 includes a driving motor 41, a driving belt 42 and a cutting tool 43, a protective cover 44 is arranged outside the cutting tool 43, the cutting tool 43 can be a common cutting tool, the rotating shaft of the cutting tool can be parallel to the axis of the rotating shaft of the clamping device, the cutting tool can also have a certain angle, the cutting tool 43 can also be arranged to feed along the direction perpendicular to the axial direction of the cutting tool according to the processing requirement.
The following describes a process of cutting processing using the embodiment of the present utility model.
The material M to be processed placed in the vibration feeding mechanism 21 enters the conveying channel 22 from the edge after being vibrated, reaches the outlet 221 of the conveying channel 22 and contacts with the top of the pushing rod 24, then the cylinder 25 pushes the pushing rod 24 to move from the initial position to the clamping device 30, and the pushing rod 24 drives the material M to be processed to move until the material M to be processed is pushed between the clamping connector 3111 and the ejector pin 3211 and the center of the material M is located on the axes of the clamping connector 3111 and the ejector pin 3211, and the pushing rod 24 stops moving. Then, the ejector pin 3211 is pushed to move toward the clamping head 3111 along the axial direction, and pushes the material M to be processed into the clamping groove 3112 until abutting against the end face of the material M to be processed and the bottom wall of the clamping groove 3112, so that the material M to be processed is tightly clamped in the processing position by the ejector pin 3211 and the clamping head 3111, and the pushing rod 24 is retracted to its initial position under the action of the cylinder 25 to prepare for the next pushing action.
The cutting tool 43 is fed forward towards the clamping device 30, the motor 33 is started, the driving shaft 331 drives the first rotating shaft 311 and the second rotating shaft 321 to rotate respectively through the first belt 335 and the second belt 336, so that the clamping joint 3111 and the ejector pin 3211 drive the material M to be processed to rotate synchronously, the cutting tool 43 rotates and cuts the material M to be processed which is located at the processing position and rotates, after the processing is finished, the cutting tool 43 is retracted to the initial position, the motor 33 stops rotating, the ejector pin 3211 moves away from the clamping joint 3111 along the axis and is separated from contact with the processed material, air is introduced into the air hole 3113, and the processed material is blown out of the clamping groove 3112 and falls into the receiving device. Then, the next material M to be machined, which is output from the vibration feeding mechanism, is pushed by the pushing rod 24 between the clamping head 3111 and the ejector pin 3211 at the outlet 221 of the conveying channel 22, and the ejector pin 3211 moves towards the clamping head 3111 along the axial direction, so that the material M to be machined is pushed to a machining position for next cutting machining.
It can be understood that in the present embodiment, the clamping members for clamping the material M to be processed are a thimble 3211 and a clamping head 3111 with a clamping groove 3212, wherein the thimble 3211 has a smaller end surface and is smaller than a surface of the material M to be processed contacting the thimble, the clamping groove 3112 has a shape matching with the material M to be processed, and the clamping groove 3112 is configured such that the material M to be processed cannot move relative to the clamping head 3111 and can only rotate synchronously therewith when rotating. In other embodiments, the shape of the clamping member may be different from that of the present embodiment, for example, a clamping groove may not be provided, both clamping members may be provided so as to be axially movable, or the like, as long as the cutting action of the cutting tool is not affected.
It will be appreciated that the embodiments of the present utility model may be used for machining other types of structures other than annular grooves, such as cutting a material to be machined completely or machining discrete grooves, machining circular mesas, arcuate grooves, etc., as long as the structure is formed by machining the material to be machined by feeding the material in one direction of the cutting device.
While the utility model has been described in terms of preferred embodiments, it is not intended to limit the scope of the utility model. Any person skilled in the art will recognize that some modifications, i.e. all changes or modifications made according to the utility model, are possible without departing from the scope of the utility model.
Claims (10)
1. The utility model provides a magnetic core cutting machine, includes main frame, loading attachment, clamping device, cutting device and controlling means, wherein loading attachment, pusher, conveyor and controlling means all set up on the main frame, wait to process the material by loading attachment transport to clamping device, by after clamping device centre gripping is in the processing position, cutting device is right wait to process the material, controlling means control loading attachment, clamping device, cutting device's action, its characterized in that:
the clamping device comprises a first part with a first clamping piece and a second part with a second clamping piece, wherein the first clamping piece and the second clamping piece are positioned on the same axis, and at least one clamping piece can move along the axis direction so as to clamp or loosen the material to be processed;
when the cutting device processes the material to be processed, the first clamping piece and the second clamping piece are driven to synchronously rotate around the axis, so that the clamped material to be processed is driven to rotate.
2. The core cutting machine of claim 1, wherein: the first clamping piece and the second clamping piece are driven by the same motor.
3. The core cutting machine according to claim 2, wherein: the first clamping piece is provided with a clamping groove matched with the material to be processed in a shape and an air hole positioned at the axis, the second clamping piece can move towards or away from the first clamping piece along the axis direction, the material to be processed is pushed to the processing position when the second clamping piece moves towards the first clamping piece, and the material to be processed is partially accommodated in the clamping groove.
4. A core cutting machine according to claim 3, wherein: the second clamping piece is a thimble, and the front end face of the second clamping piece is smaller than the end face of the material to be processed, which is contacted with the second clamping piece.
5. The core cutting machine according to claim 2, wherein: the motor drives the first clamping piece and the second clamping piece through the first belt and the second belt respectively.
6. The core cutting machine of claim 1, wherein: the feeding device comprises a vibration feeding mechanism, a conveying channel and a pushing mechanism, wherein a material to be processed enters the conveying channel from the vibration feeding mechanism, and is pushed between the first clamping piece and the second clamping piece by the pushing mechanism after being output from an outlet of the conveying channel.
7. The core cutting machine of claim 6, wherein: the pushing mechanism comprises a pushing rod and an air cylinder for driving the pushing rod to reciprocate.
8. The core cutting machine of claim 6, wherein: the feeding device further comprises a first adjusting structure for adjusting the position of the conveying channel.
9. The core cutting machine of claim 6, wherein: the feeding device further comprises a second adjusting structure for adjusting the position of the pushing mechanism.
10. The core cutting machine according to any one of claims 1 to 9, wherein: the magnetic core cutting machine further comprises a material receiving device, wherein at least one part of the material receiving device is arranged below the machining position, or at least one part of the material receiving device can move to the position below the machining position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322312269.0U CN220700080U (en) | 2023-08-28 | 2023-08-28 | Magnetic core cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322312269.0U CN220700080U (en) | 2023-08-28 | 2023-08-28 | Magnetic core cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220700080U true CN220700080U (en) | 2024-04-02 |
Family
ID=90452171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322312269.0U Active CN220700080U (en) | 2023-08-28 | 2023-08-28 | Magnetic core cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220700080U (en) |
-
2023
- 2023-08-28 CN CN202322312269.0U patent/CN220700080U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6185818B1 (en) | Long bar member machining apparatus and method | |
| US8464618B2 (en) | Numerically controlled lathe with guide bush, and method of processing workpiece by using the numerically controlled lathe | |
| KR101502639B1 (en) | Workpiece supply/conveyance device and machine tool with the workpiece supply/ conveyance device | |
| JP2008540145A (en) | Machine tool with two clamping points on separate carriages | |
| CN204603781U (en) | Cutting and system of processing | |
| KR101975965B1 (en) | Forming device of three-dimensional product using thermoplastic composite material | |
| CN220700080U (en) | Magnetic core cutting machine | |
| EP0539194B1 (en) | Method and apparatus for ceramic ferrule bore lap processing | |
| US20190184512A1 (en) | A machine having a cleaning device and optical measuring device | |
| KR101939952B1 (en) | Cutting product polishing method | |
| US6991518B1 (en) | Automated system for precision grinding of feedstock | |
| KR20200095855A (en) | Automatic cutting device | |
| CN113950384B (en) | Machine tool and machining method | |
| CN210731392U (en) | Automatic go up laser cutting device of unloading | |
| CN115139131A (en) | Full-automatic multi-channel machining machine tool for feeding and discharging | |
| KR101939951B1 (en) | Cutting product polishing device | |
| CN211637962U (en) | Forming processing device for special-shaped parts | |
| CN110773881B (en) | Full-automatic pipe fitting cutting machine | |
| CN208896238U (en) | A kind of plastic rod straight flange hole processing device | |
| CN108890755A (en) | A kind of plastic rod straight flange hole processing device | |
| CN217859130U (en) | Transfer device for grooving workpieces | |
| CN213380476U (en) | High-precision feeding tool | |
| CN218362498U (en) | Chamfering machine for two ends of cylindrical workpiece | |
| JPH0740229A (en) | Honing jug and automatic honing system | |
| CN115555829B (en) | Pin inserting machine's permutation feeding system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |