CN211275167U - Glue recovery device for paper pasting machine - Google Patents

Glue recovery device for paper pasting machine Download PDF

Info

Publication number
CN211275167U
CN211275167U CN201922101114.6U CN201922101114U CN211275167U CN 211275167 U CN211275167 U CN 211275167U CN 201922101114 U CN201922101114 U CN 201922101114U CN 211275167 U CN211275167 U CN 211275167U
Authority
CN
China
Prior art keywords
glue
feeding
scraping
conveying belt
paper
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
CN201922101114.6U
Other languages
Chinese (zh)
Inventor
闫万利
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.)
Baoji Hengshengda Industry And Trade Co ltd
Original Assignee
Baoji Hengshengda Industry And Trade 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 Baoji Hengshengda Industry And Trade Co ltd filed Critical Baoji Hengshengda Industry And Trade Co ltd
Priority to CN201922101114.6U priority Critical patent/CN211275167U/en
Application granted granted Critical
Publication of CN211275167U publication Critical patent/CN211275167U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

The utility model discloses a glue recovery unit for mounting paper machine. The automatic glue scraping device comprises a shell, wherein two sets of feeding and pressing mechanisms are symmetrically arranged in the shell, each feeding and pressing mechanism comprises a feeding roller and a press roller which are in transmission connection through a conveying belt, a glue spraying nozzle is arranged above the feeding roller, grooves are formed in two sides of the conveying belt, a liquid collecting tank is further arranged below the press roller and corresponds to the grooves, a glue scraping device is further arranged on the liquid collecting tank, the glue scraping device comprises a support and a glue scraping plate arranged on the support, the top of the glue scraping plate is attached to the surface of the conveying belt, scraping groove teeth are further arranged at the top of the glue scraping plate, and the scraping groove teeth extend into the grooves and are attached to the inner walls of the; the bottom of collecting tank has seted up the honeycomb duct, still including the collection case of gluing, the front end of honeycomb duct extends to the collection incasement of gluing, and the collection case of gluing passes through the pipeline and spouts gluey mouth fixed connection, and is provided with on the pipeline and inhales gluey pump. The utility model discloses to retrieving cyclic utilization, avoided the waste of glue.

Description

Glue recovery device for paper pasting machine
Technical Field
The utility model relates to a processing machinery equipment field, concretely relates to a glue recovery unit for mounting paper machine.
Background
A paper pasting machine belongs to the field of paper product manufacturing machinery and is a machine for laminating face paper and bottom paper into a paperboard through glue. The paper mounting machine comprises a surface paper conveying mechanism, a bottom paper conveying mechanism, a gluing mechanism, a pressing mechanism and an output mechanism. In the working process, the facial tissue conveying mechanism conveys the facial tissue into the pressing mechanism, then the bottom paper conveying mechanism conveys the bottom paper into the gluing mechanism to be smeared with glue, the bottom paper coated with the glue is also conveyed into the pressing mechanism, the pressing mechanism presses the bottom paper and the facial tissue, the pressed bottom paper and the pressed facial tissue form a paperboard, and the paperboard is output by the output mechanism.
Mount the paper machine in process of production, it is sufficient in order to guarantee to scribble the glue on the paper, have unnecessary glue to flow out from its mounting paper mechanism, if directly flow off can cause very big waste, can the polluted environment in addition, perhaps sets up the collecting tank bottom the conveyer belt, collects the gluey that overflows that drips naturally on the conveyer belt, and the recovery is incomplete, and the collection effect is not good.
Disclosure of Invention
The utility model aims to provide a: a glue recovery unit for mounting paper machine is provided to solve the problem of glue recovery.
The utility model adopts the technical scheme as follows:
the glue recovery device for the paper mounting machine comprises a shell, wherein two sets of feeding and pressing mechanisms are symmetrically arranged in the shell, each feeding and pressing mechanism comprises a feeding roller and a paper pressing roller which are in transmission connection through a conveying belt, a glue spraying nozzle is arranged above the feeding roller, the paper pressing rollers are arranged below the feeding rollers, grooves are formed in two sides of the conveying belt, the feeding rollers and the paper pressing rollers are matched with the conveying belt and the grooves of the conveying belt, a liquid collecting tank is further arranged below the paper pressing rollers and corresponds to the grooves, a glue scraping device is further arranged on the liquid collecting tank and comprises a support and a glue scraping plate arranged on the support, the top of the glue scraping plate is attached to the surface of the conveying belt, groove teeth are further arranged at the top of the glue scraping plate, and the groove teeth extend into the grooves and are attached to the inner walls of the grooves; the bottom of collecting tank has seted up the honeycomb duct, still including the collection case of gluing, the front end of honeycomb duct extends to the collection incasement of gluing, and the collection case of gluing passes through the pipeline and spouts gluey mouth fixed connection, and is provided with on the pipeline and inhales gluey pump.
The recovery effect of the glue recovery device of the existing paper pasting machine is not good in the process of pressing, the feeding roller and the paper pressing roller of the utility model are connected by the transmission of the conveyor belt, two sets of feeding pressing mechanisms respectively transport the face paper and the bottom paper and press the face paper and the bottom paper at the paper pressing roller, before the pressing, the glue is sprayed out from the glue spraying nozzle above the feeding roller, so that the face paper and the bottom paper are bonded together after the pressing, the redundant glue overflows from the side surface of the conveyor belt after being extruded during the pressing, the glue can flow into the grooves at the two sides of the conveyor belt and cannot flow out of the two sides of the conveyor belt through the grooves at the two sides of the conveyor belt, the glue overflowing onto the conveyor belt is scraped by the glue scraping plate, the glue in the grooves is scraped by the glue scraping device, the glue scraped by the glue scraping plate and the glue scraping teeth is collected in the liquid collecting tank, and the glue is introduced into the glue collecting tank through, glue in the collection gluey incasement flows to spouting gluey mouth through the pipeline under the drive effect of inhaling gluey pump, supplies to spout gluey mouth blowout glue, accomplishes the recovery of glue, and cyclic utilization has avoided the waste of glue, has protected the environment simultaneously, adopts this kind of mode to strike off glue thoroughly, prolongs equipment clearance period, practices thrift the manual work.
Furthermore, the two sets of feeding and pressing mechanisms are symmetrical with the vertical plane where the glue spraying nozzle is located. By adopting the structure, the glue spraying nozzle is opposite to the pressing center, and the bonding of the surface paper and the bottom paper is more facilitated.
Furthermore, a heating device is arranged at the position, corresponding to the groove, in the paper pressing roller. By adopting the structure, the heating device enables the temperature of the glue to be enough, and can keep lower viscous force, so that the glue flows faster and can not be solidified, and the glue scraping device is convenient to scrape the glue.
Furthermore, the scraping head of the scraping groove tooth is made of soft rubber sheets. By adopting the structure, the damage to the conveyor belt by the scraping head is avoided, and the service life is prolonged.
Furthermore, the junction of the liquid collecting pool and the flow guide pipe is also provided with a filter screen, and the filter screen can be detachably connected to the bottom of the liquid collecting pool. After the pressfitting of facial tissue and base stock, unnecessary glue is spilled over from the conveyer belt side by the extrusion, and probably contains impurity in the glue, adopts above-mentioned structure, and glue flows to album gluey case after passing through filter screen filtration impurity, prevents that impurity from blockking up and inhaling gluey pump and spouting the jiao zui to the filter screen can regularly be dismantled, is convenient for clear up.
Furthermore, an electromagnetic valve is arranged on the glue spraying nozzle. By adopting the structure, the opening and closing of the electromagnetic valve control whether the glue is supplied to the glue nozzle through the pipeline or not.
To sum up, owing to adopted this technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a glue recovery unit for mounting paper machine, through being equipped with the recess in the conveyer belt both sides, glue can flow to in the recess of conveyer belt both sides, is convenient for concentrate the recovery to glue, and the frictioning device strikes off the glue in conveyer belt both sides and the recess through scraping the offset plate and scraping the groove tooth to collect in the collecting tank, accomplish the recovery of glue, protected the environment simultaneously, adopt this kind of mode to strike off glue thoroughly, extension equipment clearance cycle practices thrift the manual work.
2. The utility model discloses a glue recovery unit for mounting paper machine, the glue that collects through collecting tank introduces glue to the collection through the honeycomb duct and glues the incasement, and the collection glues the glue of incasement and is inhaling under the drive effect of gluey pump, and the pipe is said and is flowed to spouting gluey mouth, supplies to spout gluey mouth blowout glue, accomplishes cyclic utilization, has avoided the waste of glue.
3. The utility model discloses a glue recovery unit for mounting paper machine, the position that corresponds the recess in the dancer roll still is provided with heating device, can keep lower viscidity power to make glue flow faster, can not solidify, the frictioning device of being convenient for strikes off glue.
4. The utility model discloses a glue recovery unit for mounting paper machine still is provided with the filter screen in the junction of collecting tank and honeycomb duct, filters the impurity in the glue, prevents that impurity from blockking up and inhales the jiao pump and spout the jiao zui to the filter screen can regularly be dismantled, the periodic cleaning of being convenient for.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts, and the proportional relationship of each component in the drawings in the present specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, in which:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the glue scraping device and the feeding and pressing mechanism.
Reference numerals in the drawings indicate:
1-shell, 2-feed roll, 3-conveyor belt, 301-groove, 4-paper roll, 401-heating device, 5-glue spraying nozzle, 6-liquid collecting tank, 7-glue scraping device, 701-bracket, 702-glue scraping plate, 703-scraping groove tooth, 8-flow guide pipe, 9-glue collecting box, 10-pipeline, 11-glue sucking pump, 12-filter screen and 13-electromagnetic valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations where mutually exclusive features are expressly stated.
The present invention will be described in detail with reference to the accompanying drawings.
Example one
As shown in fig. 1-2, the utility model relates to a glue recovery device for a paper pasting machine, which comprises a shell 1, two sets of feeding and pressing mechanisms symmetrically arranged in the shell 1, wherein the feeding and pressing mechanisms comprise a feeding roller 2 and a press roller 4 in transmission connection with the feeding roller 2 through a conveyor belt 3, a glue spraying nozzle 5 is arranged above the feeding roller 2, the press roller 4 is arranged below the feeding roller 2, grooves 301 are arranged on both sides of the conveyor belt 3, the feeding roller 2 and the press roller 4 are matched with the conveyor belt 3 and the grooves 301 thereof, a liquid collecting tank 6 is arranged below the press roller 4 corresponding to the grooves 301, a glue scraping device 7 is further arranged on the liquid collecting tank 6, the glue scraping device comprises a support 701 and a glue scraping plate 702 arranged on the support 701, the top of the glue scraping plate 702 is attached to the surface of the conveyor belt 3, and a scraping groove tooth 703 is further arranged on the top of the glue scraping plate 702, the scraping teeth 703 extend into the groove 301 and are attached to the inner wall of the groove 301; the honeycomb duct 8 has been seted up to the bottom of collecting tank 6, still including album case 9 that glues, the front end of honeycomb duct 8 extends to album and glues in the case 9, album case 9 that glues through pipeline 10 with spout gluey mouth 5 fixed connection, and be provided with on the pipeline 10 and inhale gluey pump 11.
The recovery effect of the glue recovery device of the existing paper pasting machine is not good in the process of pressing, the feed roller 2 and the paper pressing roller 4 of the utility model are in transmission connection through the conveying belt 3, two sets of feeding pressing mechanisms respectively transport the face paper and the bottom paper and are pressed at the paper pressing roller 4, before pressing, the glue is sprayed out of the glue spraying nozzle 5 above the feed roller 2, so that the face paper and the bottom paper are bonded together after pressing, and the redundant glue overflows from the side surface of the conveying belt 3 by extrusion during pressing, through the grooves 301 arranged at the two sides of the conveying belt 3, the glue can flow into the grooves 301 at the two sides of the conveying belt 3 and can not flow out of the two sides of the conveying belt 3, the glue scraping device 7 scrapes the glue overflowing onto the conveying belt 3 through the glue scraping plate 702, the glue scraping device 7 scrapes the glue in the grooves 301 through the groove scraping teeth 703, the glue scraped through the glue scraping plate 702 and the groove scraping teeth 703 is collected into the liquid, and the collecting tank 6 introduces glue into the glue collecting box 9 through the flow guide pipe 8, the glue in the glue collecting box 9 flows to the glue spraying nozzle 5 through the pipeline 10 under the driving action of the glue suction pump 11, the glue spraying nozzle 5 sprays the glue, the recycling of the glue is completed, the waste of the glue is avoided, the environment is protected, the glue is thoroughly scraped by adopting the mode, the equipment cleaning period is prolonged, and the labor is saved.
Example two
The embodiment is to further explain the present invention.
On the basis of the above embodiment, in a preferred scheme of this embodiment, the two sets of feeding and pressing mechanisms are symmetrical with respect to a vertical plane where the glue nozzle 5 is located. By adopting the structure, the glue spraying nozzle 5 is just opposite to the pressing center, so that the surface paper and the bottom paper can be bonded more conveniently.
EXAMPLE III
The embodiment is to further explain the present invention.
As shown in fig. 1, in this embodiment, on the basis of the above embodiment, in a preferable scheme of this embodiment, a heating device 401 is further disposed in a position corresponding to the groove 301 in the platen roller 4. By adopting the structure, the heating device 401 enables the glue temperature to be enough, and can keep lower viscous force, so that the glue flows faster and can not be solidified, and the glue scraping device 7 is convenient to scrape off the glue.
Example four
The embodiment is to further explain the present invention.
In this embodiment, on the basis of the above embodiments, in a preferable scheme of this embodiment, the scraping head of the scraping teeth 703 is made of a soft rubber sheet. Adopt above-mentioned structure, avoid scraping the head and damaging conveyer belt 3, increase of service life.
EXAMPLE five
The embodiment is to further explain the present invention.
As shown in fig. 1, in this embodiment, on the basis of the above embodiment, in a preferable scheme of this embodiment, a filter screen 12 is further disposed at a connection position of the liquid collecting tank 6 and the flow guide pipe 8, and the filter screen 12 is detachably connected to the bottom of the liquid collecting tank 6. After the pressfitting of facial tissue and base stock, unnecessary glue is spilled over from conveyer belt 3 side by the extrusion, and probably contains impurity in the glue, adopts above-mentioned structure, and glue flows to album glue case 9 after filtering impurity through filter screen 12, prevents that impurity from blockking up and inhaling gluey pump 11 and spout gluey mouth 5 to filter screen 12 can regularly dismantle, is convenient for clear up.
EXAMPLE six
The embodiment is to further explain the present invention.
As shown in fig. 1, in this embodiment, on the basis of the above embodiments, in a preferable scheme of this embodiment, an electromagnetic valve 13 is disposed on the glue nozzle 5. With the above-described structure, the opening and closing of the electromagnetic valve 13 controls whether or not the glue is supplied to the glue nozzle 5 through the pipe 10.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (6)

1. A glue recovery unit for mounting paper machine, including casing (1), its characterized in that: the automatic glue spraying device is characterized in that two sets of feeding and pressing mechanisms are symmetrically arranged in the shell (1), each feeding and pressing mechanism comprises a feeding roller (2) and a paper pressing roller (4) in transmission connection through a conveying belt (3), a glue spraying nozzle (5) is arranged above the feeding roller (2), the paper pressing rollers (4) are arranged below the feeding rollers (2), grooves (301) are formed in two sides of the conveying belt (3), the feeding rollers (2) and the paper pressing rollers (4) are matched with the conveying belt (3) and the grooves (301) of the conveying belt, a liquid collecting tank (6) is further arranged below the paper pressing rollers (4) and corresponds to the positions of the grooves (301), a glue scraping device (7) is further arranged on the liquid collecting tank (6) and comprises a support (701) and a glue scraping plate (702) arranged on the support (701), and the top of the glue scraping plate (702) is attached to the surface of the conveying belt (3), the top of the groove scraping device is also provided with groove scraping teeth (703), and the groove scraping teeth (703) extend into the groove (301) and are attached to the inner wall of the groove (301); honeycomb duct (8) have been seted up to the bottom of collecting tank (6), still including collection gluey case (9), the front end of honeycomb duct (8) extends to collection gluey case (9) in, collection gluey case (9) through pipeline (10) with spout gluey mouth (5) fixed connection, and be provided with on pipeline (10) and inhale gluey pump (11).
2. The glue recovery device for a laminating machine according to claim 1, characterized in that: the two sets of feeding pressing mechanisms are symmetrical with the vertical plane where the glue spraying nozzle (5) is located.
3. The glue recovery device for a laminating machine according to claim 1, characterized in that: and a heating device (401) is also arranged at the position corresponding to the groove (301) in the paper pressing roller (4).
4. The glue recovery device for a laminating machine according to claim 1, characterized in that: the scraping head of the scraping groove teeth (703) adopts a soft rubber sheet.
5. The glue recovery device for a laminating machine according to claim 1, characterized in that: the junction of the liquid collecting pool (6) and the flow guide pipe (8) is further provided with a filter screen (12), and the filter screen (12) can be detachably connected to the bottom of the liquid collecting pool (6).
6. The glue recovery device for a laminating machine according to claim 1, characterized in that: and the glue spraying nozzle (5) is provided with an electromagnetic valve (13).
CN201922101114.6U 2019-11-29 2019-11-29 Glue recovery device for paper pasting machine Active CN211275167U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922101114.6U CN211275167U (en) 2019-11-29 2019-11-29 Glue recovery device for paper pasting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922101114.6U CN211275167U (en) 2019-11-29 2019-11-29 Glue recovery device for paper pasting machine

Publications (1)

Publication Number Publication Date
CN211275167U true CN211275167U (en) 2020-08-18

Family

ID=72033973

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922101114.6U Active CN211275167U (en) 2019-11-29 2019-11-29 Glue recovery device for paper pasting machine

Country Status (1)

Country Link
CN (1) CN211275167U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111992441A (en) * 2020-08-31 2020-11-27 广东利元亨智能装备股份有限公司 Glue spreader
CN112140644A (en) * 2020-09-16 2020-12-29 舒城县大格包装材料有限公司 Paper laminating machine for continuous color printing and working method thereof
CN112691848A (en) * 2020-12-24 2021-04-23 重庆市璧山区祥和包装印刷有限公司 Glue recovery process of paper pasting machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111992441A (en) * 2020-08-31 2020-11-27 广东利元亨智能装备股份有限公司 Glue spreader
CN112140644A (en) * 2020-09-16 2020-12-29 舒城县大格包装材料有限公司 Paper laminating machine for continuous color printing and working method thereof
CN112140644B (en) * 2020-09-16 2022-01-14 舒城县大格包装材料有限公司 Paper laminating machine for continuous color printing and working method thereof
CN112691848A (en) * 2020-12-24 2021-04-23 重庆市璧山区祥和包装印刷有限公司 Glue recovery process of paper pasting machine

Similar Documents

Publication Publication Date Title
CN211275167U (en) Glue recovery device for paper pasting machine
CN209866502U (en) Rubber coating device is used in sticky tape production
CN206286104U (en) A kind of adjustable sheet material glue spreading apparatus
DE3533413C2 (en) Double belt press for the continuous production of copper-clad laminates
CN206840386U (en) A kind of dust cleaning brush oil machine group for panel production line
CN110738920B (en) Compounding method of adhesive sticker product
CN209955475U (en) Cloth composite set
CN112208151A (en) Preparation process of paper-plastic composite woven bag
CN210941145U (en) Novel paper mounting machine
CN212633225U (en) Rubber adhesive rubberizing device
CN108127726A (en) A kind of VHB glue hollow out waste discharge apparatus and waste discharge method
CN2916536Y (en) Belt-type filter press
CN206139444U (en) Automatic frictioning device of compounding machine
CN214083194U (en) Corrugated container board hot pressing rigging machine
CN214132477U (en) Efficient adhesive label waste discharge device
CN218342966U (en) Printing paper corrugated paper bonder
CN218502497U (en) Steel sheet release agent coating device
CN218287146U (en) Anti-blocking printing ink cabin for printing
CN220367981U (en) Divide board garbage collection device
CN219816885U (en) Rubber coating equipment is used in sticky tape production
CN218228261U (en) Hot melt adhesive compounding machine with drying structure
CN213199166U (en) Multicolor printing machine feed mechanism
CN219150877U (en) Adhesive tape overlapping sticky powder removing tool
CN218876453U (en) Paper bag gluing mechanism capable of uniformly gluing two surfaces
CN217250346U (en) Prevent oven structure of top oil drip

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant