CN210150453U - Rewinding machine convenient to clearance remains glue - Google Patents

Rewinding machine convenient to clearance remains glue Download PDF

Info

Publication number
CN210150453U
CN210150453U CN201920744191.0U CN201920744191U CN210150453U CN 210150453 U CN210150453 U CN 210150453U CN 201920744191 U CN201920744191 U CN 201920744191U CN 210150453 U CN210150453 U CN 210150453U
Authority
CN
China
Prior art keywords
plate
cleaning
dovetail
rewinding machine
length direction
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
Application number
CN201920744191.0U
Other languages
Chinese (zh)
Inventor
彭小平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Dingxin Packaging Co Ltd
Original Assignee
Chengdu Dingxin Packaging Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Dingxin Packaging Co Ltd filed Critical Chengdu Dingxin Packaging Co Ltd
Priority to CN201920744191.0U priority Critical patent/CN210150453U/en
Application granted granted Critical
Publication of CN210150453U publication Critical patent/CN210150453U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

The utility model relates to a rewinding machine convenient to clearance remains glue belongs to paper machinery technical field, including organism, sideboard and the roll paper roller of setting on the organism, be provided with cutter unit spare and spout gluey subassembly along the length direction reciprocating motion of sideboard on the organism, be located the length direction's of sideboard both sides are provided with the vertical riser that upwards extends, two be provided with the horizontal pole parallel with the sideboard between the riser, it is provided with the movable plate to move on the horizontal pole, be provided with the drive assembly who is used for driving movable plate reciprocating motion on the riser, be provided with the clearance subassembly on the movable plate, still be provided with on the movable plate and be used for driving the elevating system that the clearance subassembly goes up and down in vertical direction, the utility model has the advantages of glue on the sideboard of being convenient for clear up and reduce workman intensity of labour.

Description

Rewinding machine convenient to clearance remains glue
Technical Field
The utility model belongs to the technical field of paper article machinery technique and specifically relates to a rewinding machine convenient to clearance remains glue.
Background
The rewinding machine is a special equipment for paper, mica tapes and films, and is used for sequentially rewinding paper rolls (called as original paper rolls) produced by a paper machine, and rewinding the paper to obtain finished paper for leaving a factory. The rewinding machine has become a development trend in the paper machine industry to replace direct current transmission with alternating current transmission. The paper roll wound by the paper winding machine is soft, the interior of the paper roll can be damaged or broken, the edges of two sides are irregular, the width of a paper web and the like can not be directly used for machines for paper processing or printing and the like, and most paper types (such as newsprint, letterpress printing paper, packaging paper and the like) can only leave a factory after being subjected to edge cutting, slitting and jointing by a rewinding machine and being rewound on a paper roll core to form a finished paper roll with a certain specification and a certain tightness requirement.
The rewinding machine in the prior art generally comprises a machine body, a side plate and a small paper winding roll shaft, wherein the machine body continuously provides paper output, the paper is wound on the small paper winding roll shaft after passing through the side plate, the side plate is a plate body with a rectangular cross section, one side of the side plate close to the small paper winding roll shaft is generally called as an outer side, one side of the side plate close to the machine body is an inner side, a cutter assembly and a glue spraying assembly are arranged on the machine body in a reciprocating mode along the length direction of the side plate, the cutter assembly is used for cutting continuously conveyed paper on the inner side of the side plate, a layer of glue is coated on the paper on the upper surface of the side plate, a part of the glue is left on the side plate, certain interference is brought to paper feeding of a next roll, the performance of the whole machine is affected, the glue is left on the side plate for a long time, the glue needs to be operated and continuously cleaned, and is troublesome in cleaning, but also increases the workload of people.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rewinding machine convenient to clearance remains glue has the glue of being convenient for on the clearance sideboard and reduces workman intensity of labour's advantage.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides a rewinding machine convenient to clearance remains glue, includes the organism, sets up sideboard and the roll paper roller on the organism, be provided with cutter unit spare and spout gluey subassembly along the length direction reciprocating motion of sideboard on the organism, be located the length direction's of sideboard both sides are provided with the vertical riser that upwards extends, two be provided with the horizontal pole parallel with the sideboard between the riser, the removal is provided with the movable plate on the horizontal pole, be provided with the drive assembly who is used for driving movable plate reciprocating motion on the riser, be provided with the clearance subassembly on the movable plate, still be provided with the elevating system who is used for driving the clearance subassembly to go up and down in vertical direction on the movable plate.
When the technical scheme is implemented, when glue is remained on the side plate, firstly, the lifting mechanism is started to enable the cleaning component to be attached to the side plate, then, the driving component is started to enable the moving plate to drive the cleaning component to continuously reciprocate in the length direction of the cross rod, and at the moment, the cleaning component attached to the surface of the side plate can continuously clean the glue remained on the surface of the side plate; and after cleaning is finished, lifting the cleaning assembly again. After setting up like this no longer need the workman manual and waste time and energy ground to clear up remaining glue on the sideboard, and only need start lifting unit and drive assembly during the clearance can, it is very convenient to reach the glue of being convenient for on the clearance sideboard and reduce workman intensity of labour's effect.
Further, the clearance subassembly includes clearance board and sets up the sponge brush strip on the clearance board, elevating system includes cylinder and lifter plate, the vertical downwardly extending of piston rod of cylinder, the lifter plate setting at the tip of the piston rod of cylinder and with the connection can be dismantled to the clearance board.
Implement above-mentioned technical scheme, at first pull down the clearance board from the lifter plate, be stained with the sponge brush strip and water and wring out, on putting the lifter plate back again to the clearance board after that, then start the cylinder and let the vertical downward extension of piston rod of cylinder, let the laminating of sponge brush strip on the sideboard, because the hydroscopicity and the clearance effect of sponge brush strip are better, consequently at the constantly reciprocating motion in-process, can clear up remaining glue on the sideboard comparatively thoroughly, thereby make the remaining glue effect of clearance better.
Furthermore, a dovetail groove is formed in the lifting plate along the length direction of the lifting plate, a dovetail block inserted into the dovetail groove is arranged on the cleaning plate, an opening is formed in one end of the dovetail groove, the other end of the dovetail groove is sealed, and a blocking piece used for blocking the dovetail block in the dovetail groove is arranged at the opening end of the dovetail groove.
When the technical scheme is implemented, when the cleaning plate is installed, the dovetail block on the cleaning plate is aligned to the opening of the dovetail groove on the lifting plate and inserted, and after the dovetail block is completely positioned in the dovetail groove, the dovetail block can be prevented from sliding out of the opening of the dovetail groove through the blocking piece, so that the installation is realized; after long-term use, need dismantle the sponge brush strip and clear up, take off the piece that stops this moment, directly can realize dismantling dovetail block from the opening part roll-off of dovetail, reach and dismantle and install the comparatively convenient effect of clearance board.
Furthermore, the blocking piece comprises a blocking rod which is hinged to one side of the opening of the dovetail groove, and a clamping groove for the blocking rod to be clamped in is formed in the other side of the opening of the dovetail groove.
According to the technical scheme, the blocking rod is directly rotated, so that the blocking rod is located at the position where the opening of the dovetail groove is blocked, and the blocking rod can be stably located at the position where the opening of the dovetail groove is blocked due to the arrangement of the clamping groove.
Further, the cylinder is provided with two on the movable plate, and two the piston rod of cylinder all is connected on the face that the lifter plate deviates from the clearance board.
Implement above-mentioned technical scheme, the setting up of two cylinders can let the cleaning plate be connected more stably with the cylinder.
Further, the driving assembly comprises a servo motor and a lead screw, the length direction of the lead screw is consistent with that of the cross rod, a supporting plate is arranged on the vertical plates, the servo motor is fixedly arranged on the supporting plate, the lead screw is rotatably arranged between the two vertical plates and coaxially connected with an output shaft of the servo motor, a sliding plate is arranged on the movable plate, a threaded hole in threaded fit with the lead screw is formed in the sliding plate, and a sliding hole in sliding sleeve connection with the cross rod is formed in the sliding plate.
According to the technical scheme, the servo motor is started, the screw rod starts to rotate, the sliding plate is sleeved on the screw rod through the threaded hole and is also sleeved on the cross rod through the sliding hole sliding sleeve, so that the sliding plate can start to move along the length direction of the screw rod under the rotation of the screw rod, the moving plate is driven to move, the cleaning assembly is driven to move, the effect that the moving plate is driven to move conveniently is achieved, the servo motor can rotate forwards and backwards, and the reciprocating movement of the moving plate on the cross rod can be visually achieved.
Further, rolling bearings are arranged at the positions, opposite to each other, of the two vertical plates, and two ends of the lead screw penetrate through the two rolling bearings and are in interference fit with inner rings of the rolling bearings.
Implement above-mentioned technical scheme, antifriction bearing's setting makes the lead screw realize still can stably fixing between two risers under the condition of rotation.
Further, a Teflon layer is covered on the surface of the cross rod.
In the implementation of the technical scheme, Teflon is generally called as a non-stick coating or an easy-to-clean material. The material has the characteristics of high temperature resistance and extremely low friction coefficient, so that the material is coated on the surface of the cross rod, and the vertical plate can slide on the cross rod more smoothly through the sliding hole.
To sum up, the utility model discloses following beneficial effect has:
when glue is left on the side plate, firstly, the lifting mechanism is started to enable the cleaning component to be attached to the side plate, then, the driving component is started to enable the moving plate to drive the cleaning component to continuously reciprocate in the length direction of the cross rod, and at the moment, the cleaning component attached to the surface of the side plate can continuously clean the glue left on the surface of the side plate; and after cleaning is finished, lifting the cleaning assembly again. After the arrangement, the glue left on the side plate is not required to be cleaned manually by workers and wastes time and labor, and only the lifting assembly and the driving assembly are required to be started during cleaning, so that the cleaning is very convenient, and the effects of conveniently cleaning the glue on the side plate and reducing the labor intensity of the workers are achieved;
when the cleaning plate is installed, the dovetail block on the cleaning plate is aligned to the opening of the dovetail groove on the lifting plate and inserted, and after the dovetail block is completely positioned in the dovetail groove, the dovetail block can be prevented from sliding out of the opening of the dovetail groove through the blocking piece, so that the installation is realized; after long-term use, need dismantle the sponge brush strip and clear up, take off the piece that stops this moment, directly can realize dismantling dovetail block from the opening part roll-off of dovetail, reach and dismantle and install the comparatively convenient effect of clearance board.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a partially cut-away and exploded view for showing the connection relationship of the cleaning assembly, the driving assembly and the lifting mechanism according to the embodiment of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2.
Reference numerals: 1. a body; 11. a side plate; 12. a roll paper roll shaft; 13. a cutter assembly; 14. spraying a glue component; 2. a vertical plate; 21. a cross bar; 22. a support plate; 23. a rolling bearing; 3. moving the plate; 31. a sliding plate; 311. a threaded hole; 312. a slide hole; 4. a drive assembly; 41. a servo motor; 42. a lead screw; 5. cleaning the assembly; 51. cleaning the plate; 511. a dovetail block; 52. a sponge brush bar; 6. a lifting mechanism; 61. a cylinder; 62. a lifting plate; 621. a dovetail groove; 622. a blocking lever; 623. a clamping groove.
Detailed Description
The technical solution of the embodiment of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1, the rewinding machine convenient for cleaning residual glue comprises a machine body 1, a side plate 11 arranged on the machine body 1 and a roll paper roller 12, wherein a cutter assembly 13 and a glue spraying assembly 14 are arranged on the machine body 1 and reciprocate along the length direction of the side plate 11.
As shown in fig. 1 and 2, vertical plates 2 extending vertically and upwardly are arranged on two sides of a length direction of a side plate 11, a cross rod 21 is arranged between the two vertical plates 2, the length direction of the cross rod 21 is parallel to the length direction of the side plate 11, a moving plate 3 is arranged on the cross rod 21 in a reciprocating manner, a sliding plate 31 is arranged on the moving plate 3, a sliding hole 312 which is slidably sleeved with the cross rod 21 is formed in the sliding plate 31, a driving assembly 4 is arranged on the vertical plate 2, and the driving assembly 4 is used for driving the moving plate 3 to reciprocate on the cross rod 21; and in order to allow the sliding plate 31 to move on the cross bar 21 more smoothly through the sliding hole 312, a teflon layer is coated on the surface of the cross bar 21.
As shown in fig. 1 and 2, the driving assembly 4 includes a servo motor 41 and a lead screw 42, the length direction of the lead screw 42 is consistent with the length direction of the cross rod 21, and the lead screw 42 is located below the cross rod 21, a threaded hole 311 in threaded fit with the lead screw 42 is formed in the vertical plate 2, a supporting plate 22 is arranged on the vertical plate 2, the servo motor 41 is fixedly arranged on the supporting plate 22, the lead screw 42 is rotatably arranged between the two vertical plates 2, namely, the rolling bearings 23 are arranged at opposite positions on the two vertical plates 2, two ends of the lead screw 42 penetrate through the two rolling bearings 23 and are in interference fit with inner rings of the rolling bearings 23, and the lead screw 42 is coaxially connected with output shafts.
The servo motor 41 is started to enable the screw rod 42 to rotate, and as the sliding plate 31 is sleeved on the screw rod 42 through the threaded hole 311 and the sliding plate 31 is also sleeved on the cross rod 21 through the sliding hole 312 in a sliding manner, under the rotation of the screw rod 42, the sliding plate 31 starts to move along the length direction of the screw rod 42, so that the moving plate 3 is driven to move; the effect that the moving plate 3 is driven to move conveniently is achieved, the servo motor 41 can rotate positively and negatively, the moving plate 3 can move on the cross rod 21 in a reciprocating mode visually, and the screw rod 42 can still be stably fixed between the two vertical plates 2 under the condition that the rolling bearing 23 is arranged to enable the screw rod 42 to rotate.
As shown in fig. 1 and 2, a cleaning assembly 5 is disposed on the moving plate 3, and a lifting mechanism 6 is further disposed on the moving plate 3, and the lifting mechanism 6 is used for driving the cleaning assembly 5 to lift in a vertical direction.
As shown in fig. 1 and 2, the cleaning assembly 5 includes a cleaning plate 51 and a sponge brush strip 52 disposed on the cleaning plate 51, the lifting mechanism 6 includes two cylinders 61 and two lifting plates 62, and in this embodiment, the two cylinders 61 are disposed on the moving plate 3, and piston rods of the two cylinders 61 are both connected to a plate surface of the lifting plate 62 away from the cleaning plate 51; the piston rods of the two cylinders 61 extend vertically downwards, and the lifting plate 62 is arranged at the end part of the piston rod of the cylinder 61 and detachably connected with the cleaning plate 51.
Starting cylinder 61 and letting the piston rod of cylinder 61 extend vertically downwards, let sponge brush strip 52 laminate on sideboard 11, because sponge brush strip 52's hydroscopicity and cleaning effect are better, consequently constantly reciprocating the removal in-process, can clear up remaining glue on sideboard 11 comparatively thoroughly to make the remaining glue effect of clearance better, and two cylinders 61's setting can let cleaning plate 51 be connected more stably with cylinder 61.
As shown in fig. 2 and 3, a dovetail groove 621 is formed in the lifting plate 62 along the length direction of the lifting plate 62, a dovetail block 511 inserted into the dovetail groove 621 is arranged on the cleaning plate 51, an opening is formed at one end of the dovetail groove 621, a seal is formed at the other end of the dovetail groove 621, a blocking member is arranged at the opening end of the dovetail groove 621, and the blocking member is used for blocking the dovetail block 511 in the dovetail groove 621; the blocking piece is a blocking rod 622 hinged to one side of the opening of the dovetail groove 621, and a clamping groove 623 into which the blocking rod 622 is clamped is arranged on the other side of the opening of the dovetail groove 621.
When the cleaning plate 51 is installed, the dovetail block 511 on the cleaning plate 51 is aligned with the opening of the dovetail groove 621 on the lifting plate 62 and inserted, after the dovetail block 511 is completely positioned in the dovetail groove 621, the blocking rod 622 is directly rotated, so that the blocking rod 622 is positioned at a position blocking the opening of the dovetail groove 621, and the arrangement of the clamping groove 623 can ensure that the blocking rod 622 is stably positioned at a position blocking the opening of the dovetail groove 621, thereby realizing installation; after long-term use, the sponge brush strip 52 needs to be detached for cleaning, the blocking piece is detached at the moment, the dovetail block 511 can be directly slid out from the opening of the dovetail groove 621 to be detached, and the effect that the cleaning plate 51 is detached and installed conveniently is achieved.
The specific working process is as follows: firstly, the cleaning plate 51 is detached from the lifting plate 62, the sponge brush strip 52 is soaked with water and is wrung, then the cleaning plate 51 is installed on the lifting plate 62 again, then the moving plate 3 is moved to one side of the cross rod 21 close to the vertical plate 2, at this time, the air cylinder 61 is started to enable the sponge brush strip 52 to be abutted to the surface of the side plate 11, then the servo motor 41 is started to enable the screw rod 42 to start to rotate, the moving plate 3 drives the sponge brush strip 52 to start to reciprocate along the length direction of the side plate 11, the sponge brush strip 52 can clean glue remained on the surface of the side plate 11 under continuous reciprocating movement, after cleaning is finished, the blocking rod 622 is unscrewed, the dovetail block 511 is taken out from the dovetail groove 621, the cleaning rod is separated from the lifting plate 62, and the sponge brush strip 52 is taken out for cleaning.

Claims (8)

1. A rewinding machine convenient for cleaning residual glue comprises a machine body (1), a side plate (11) arranged on the machine body (1) and a roll paper roll shaft (12), a cutter component (13) and a glue spraying component (14) are arranged on the machine body (1) in a reciprocating way along the length direction of the side plate (11), the method is characterized in that: vertical plates (2) extending upwards are arranged on two sides of the length direction of the side plate (11), a cross rod (21) parallel to the side plate (11) is arranged between the two vertical plates (2), the moving plate (3) is movably arranged on the cross rod (21), the vertical plate (2) is provided with a driving component (4) for driving the moving plate (3) to reciprocate, the cleaning device is characterized in that a cleaning assembly (5) is arranged on the moving plate (3), and a lifting mechanism (6) used for driving the cleaning assembly (5) to lift in the vertical direction is further arranged on the moving plate (3).
2. The rewinding machine facilitating the cleaning of residual glue according to claim 1, characterized in that: clearance subassembly (5) are including clearance board (51) and sponge brush strip (52) of setting on clearance board (51), elevating system (6) are including cylinder (61) and lifter plate (62), the vertical downwardly extending of piston rod of cylinder (61), lifter plate (62) set up the tip at the piston rod of cylinder (61) and with clearance board (51) can be dismantled and be connected.
3. The rewinding machine convenient to clean up residual glue according to claim 2, characterized in that: dovetail (621) have been seted up along the length direction of lifter plate (62) on lifter plate (62), be provided with on cleaning plate (51) and insert dovetail (511) in dovetail (621), dovetail (621) one end opening sets up, the other end seals the setting, the open end of dovetail (621) is provided with and is used for blockking up the piece that blocks dovetail (511) in dovetail (621).
4. A rewinding machine facilitating the cleaning of residual glue according to claim 3, characterized in that: the blocking piece comprises a blocking rod (622) which is hinged to one side of an opening of the dovetail groove (621), and a clamping groove (623) for the blocking rod (622) to be clamped in is formed in the other side of the opening of the dovetail groove (621).
5. The rewinding machine convenient to clean up residual glue according to claim 2, characterized in that: the two cylinders (61) are arranged on the moving plate (3), and piston rods of the two cylinders (61) are connected to the surface of the lifting plate (62) deviating from the cleaning plate (51).
6. The rewinding machine facilitating the cleaning of residual glue according to claim 1, characterized in that: the driving assembly (4) comprises a servo motor (41) and a lead screw (42) with the length direction consistent with that of the cross rod (21), a supporting plate (22) is arranged on the vertical plates (2), the servo motor (41) is fixedly arranged on the supporting plate (22), the lead screw (42) is rotatably arranged between the two vertical plates (2) and coaxially connected with an output shaft of the servo motor (41), a sliding plate (31) is arranged on the moving plate (3), a threaded hole (311) in threaded fit with the lead screw (42) is formed in the sliding plate (31), and a sliding hole (312) in sliding sleeve connection with the cross rod (21) is further formed in the sliding plate (31).
7. A rewinding machine facilitating the cleaning of residual glue according to claim 6, characterized in that: the two vertical plates (2) are provided with rolling bearings (23) at opposite positions, and two ends of the lead screw (42) penetrate through the two rolling bearings (23) and are in interference fit with inner rings of the rolling bearings (23).
8. The rewinding machine facilitating the cleaning of residual glue according to claim 1, characterized in that: the surface of the cross rod (21) is covered with a Teflon layer.
CN201920744191.0U 2019-05-22 2019-05-22 Rewinding machine convenient to clearance remains glue Active CN210150453U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920744191.0U CN210150453U (en) 2019-05-22 2019-05-22 Rewinding machine convenient to clearance remains glue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920744191.0U CN210150453U (en) 2019-05-22 2019-05-22 Rewinding machine convenient to clearance remains glue

Publications (1)

Publication Number Publication Date
CN210150453U true CN210150453U (en) 2020-03-17

Family

ID=69760031

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920744191.0U Active CN210150453U (en) 2019-05-22 2019-05-22 Rewinding machine convenient to clearance remains glue

Country Status (1)

Country Link
CN (1) CN210150453U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111790665A (en) * 2020-06-23 2020-10-20 武汉市建桥印务有限公司 Cleaning device of cross cutting machine cutting board for packing carton production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111790665A (en) * 2020-06-23 2020-10-20 武汉市建桥印务有限公司 Cleaning device of cross cutting machine cutting board for packing carton production

Similar Documents

Publication Publication Date Title
CN210150453U (en) Rewinding machine convenient to clearance remains glue
CN107570373A (en) A kind of efficiently Manual wallpaper glue spreading apparatus
CN210189185U (en) Discharging device for aluminum alloy profile cutting equipment
CN203739422U (en) Cleaning type embossing machine
CN110899366B (en) Quantitative feeding's spiral pipe automatic processing equipment
CN115106261B (en) External wall insulation board draws auxiliary assembly
CN206594335U (en) The fine automatic fiber-cutting machine of one kind volume
CN106842425A (en) The fine automatic fiber-cutting machine of one kind volume
CN216885787U (en) Printing efficiency hoisting device
CN215360405U (en) Printing roller switching mechanism
CN210283591U (en) Reciprocating roller printing machine manipulator
CN212292194U (en) Cigarette connects dress paper with cutting winding mechanism
CN211008910U (en) Car air filter processingequipment
CN211662826U (en) Printing device of multicolor printing machine
CN208772618U (en) A kind of plate manufacturing machine
CN209955528U (en) A wash subassembly for version roller
CN219130373U (en) Uncoiling device for steel coil
CN218203584U (en) A tailor device for tent cloth production
CN221087947U (en) Semi-automatic coiled tape spot welder
CN220446617U (en) Shearing equipment is used in spool paper production
CN118545549B (en) Automatic roll changing device and roll changing method for flexographic printing machine
CN221070265U (en) Cutting equipment of oil pressure type reverse osmosis film
CN219132509U (en) Self-adhesive label die-cutting machine
CN221396349U (en) Decorative cloth winding device
CN202988357U (en) Novel tailing material smoothening device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant