CN210304290U - High-efficient spraying equipment of auto parts - Google Patents

High-efficient spraying equipment of auto parts Download PDF

Info

Publication number
CN210304290U
CN210304290U CN201921162149.4U CN201921162149U CN210304290U CN 210304290 U CN210304290 U CN 210304290U CN 201921162149 U CN201921162149 U CN 201921162149U CN 210304290 U CN210304290 U CN 210304290U
Authority
CN
China
Prior art keywords
box body
spraying
fixedly connected
servo motor
screws
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.)
Expired - Fee Related
Application number
CN201921162149.4U
Other languages
Chinese (zh)
Inventor
査凌宇
查显贵
丁敏
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.)
Anqing Ji'an Auto Part Forging And Rolling Co ltd
Original Assignee
Anqing Ji'an Auto Part Forging And Rolling 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 Anqing Ji'an Auto Part Forging And Rolling Co ltd filed Critical Anqing Ji'an Auto Part Forging And Rolling Co ltd
Priority to CN201921162149.4U priority Critical patent/CN210304290U/en
Application granted granted Critical
Publication of CN210304290U publication Critical patent/CN210304290U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Spray Control Apparatus (AREA)

Abstract

The utility model discloses a high-efficient spraying equipment of auto parts, including the work box, there is one screw fixedly connected with supporting seat in bottom rear end one side in the work box, and supporting seat one is equipped with two and distributes in both sides position, two install between the lateral wall behind supporting seat one and the work box and carry link joint one, the rear end face outside of work box is equipped with servo motor one, and the output of servo motor one and the input fixed connection who carries link joint one, one side that the transport link joint one was kept away from to servo motor one is equipped with the trip shaft, and the trip shaft passes through the gear train rotation with the output of servo motor one and is connected, the one end of trip shaft is passed the work box and is passed through screw fixedly connected with returning face plate at the body of rod outer wall. The utility model discloses can realize auto parts's upset when the spraying to auto parts's comprehensive spraying, improved the efficiency of production greatly, reduce labour cost.

Description

High-efficient spraying equipment of auto parts
Technical Field
The utility model relates to an auto parts machining equipment technical field especially relates to a high-efficient spraying equipment of auto parts.
Background
In the existing society, the development of automobiles is very rapid, so that the development of the industry of automobile parts is very rapid, after the production of automobile parts is completed, some parts need to be painted, the types of the automobile parts are more and different, when the automobile parts are painted in the prior art, the surfaces of the parts are slowly coated by manual painting in general operation, the painting efficiency is low in the mode, in addition, when the heavier parts are painted, the painting work of the other surface is needed after the paint is dried after the single-surface painting is completed, a large amount of manpower is needed for overturning, the production efficiency is low, the requirement of batch production is difficult to meet, and therefore, the research on the high-efficiency painting equipment for the automobile parts is very significant.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a high-efficiency spraying device for automobile parts.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an automobile part high-efficiency spraying device comprises a working box body, wherein one side of the rear end of the inner bottom surface of the working box body is fixedly connected with a first supporting seat through screws, the first supporting seat is provided with two supporting seats and is distributed at two side positions, a first conveying chain plate is arranged between the first supporting seat and the rear side wall of the working box body, the outer side of the rear end surface of the working box body is provided with a first servo motor, the output end of the first servo motor is fixedly connected with the input end of the first conveying chain plate, one side of the first servo motor, which is far away from the first conveying chain plate, is provided with a turnover shaft, the turnover shaft is rotatably connected with the output end of the first servo motor through a gear set, one end of the turnover shaft penetrates through the working box body and is fixedly connected with a turnover plate through screws on the outer wall of a rod, a second conveying chain plate is arranged between the second supporting seat and the side wall of the working box body, a second servo motor is arranged at the outer end of the working box body close to the second conveying chain plate, the output end of the second servo motor is fixedly connected with the input end of the second conveying chain plate, a fixing plate is arranged at one side of the middle part of the second conveying chain plate close to the first conveying chain plate, the fixing plate is fixed on the inner bottom surface of the working box body through screws, a spraying device and a drying device are arranged at the upper ends of the first conveying chain plate and the second conveying chain plate, the spraying device comprises a spraying box body, the inner walls of the two sides of the spraying box body are fixedly connected with a first mounting plate through screws, a paint placing vessel is fixedly connected with one side of the upper end of the first mounting plate through screws, a material conveying pipe is arranged at the lower end of the first mounting plate, a, the lower end of the conveying pipe and one side, close to the center of the spraying box body, of the mounting seat are respectively provided with a first spray head, a plurality of first spray heads are arranged on the first spray heads, the lower end of one side, close to the center of the spraying box body, of the paint placing vessel is connected with a first material guide pipe in a penetrating manner, the lower end of the first material guide pipe penetrates through the mounting plate and is connected onto the conveying pipe in a penetrating manner, two sides of the lower end of the material guide pipe are also connected with a second material guide pipe in a penetrating manner, one end of the second material guide pipe extends into the mounting seat, the first spray heads on the mounting seat are all mounted on the second material guide pipe, a first through valve is further mounted on the first material guide pipe, one side of the upper end of the spraying box body is connected with a feed pipe in a penetrating manner, the upper end of the feed pipe penetrates through, the lower extreme of mounting panel two is equipped with jet-propelled pipe, and hangs post two through screw fixedly connected with between the lower terminal surface of jet-propelled pipe and mounting panel two, gas heater's output fixedly connected with air duct, and the lower extreme through connection of air duct is on jet-propelled pipe, shower nozzle two is still installed to jet-propelled pipe's lower extreme, and shower nozzle two is equipped with a plurality ofly, install logical check valve two on the air duct.
Preferably, the feeding hole is formed in the upper end of the working box body close to one side away from the second conveying chain plate, the inner wall of the feeding hole is provided with a guide plate fixedly connected with screws, the guide plate is located on the inner side of the working box body and is inclined downwards, the lower ends of the first servo motor and the second servo motor are respectively provided with a horizontal plate, the first servo motor and the second servo motor are respectively fixedly connected onto the horizontal plate through screws, and the horizontal plate is fixedly connected onto the outer wall of the working box body through screws.
Preferably, the gas injection pipe is provided with a plurality of gas injection pipes, and two sides of each gas injection pipe are bent downwards.
Preferably, the turnover shaft is rotatably connected with the rear side wall of the working box body through a rolling bearing, and the turnover plate is provided with four turnover plates which are uniformly distributed on the outer wall of the rod body of the turnover shaft.
Preferably, the spraying box body and the drying box body at the upper end of the first conveying chain plate are fixedly connected to the inner bottom surface of the working box body through screws, and the spraying box body and the drying box body at the upper end of the second conveying chain plate are fixedly connected to the side wall of the good working box body of the fixing plate through screws.
Preferably, the center of the mounting seat is flush with the upper end faces of the first conveying chain plate and the second conveying chain plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a cooperation of conveying link joint one, conveying link joint two and returning face plate is used, can realize the upset to the auto parts to be convenient for to the spraying and the stoving on auto parts four sides, improved work efficiency greatly;
2. the utility model discloses a spray head I is installed at the lower extreme of conveying pipeline and one side of mount pad near the spraying box center to realize the four sides spraying to the auto parts, guarantee the spraying effect of auto parts, improve the spraying efficiency of auto parts;
3. the utility model discloses an all be equipped with drying device in one side of spraying device to improve the efficiency of vapour part production, and the both sides downwarping of jet-propelled pipe, thereby guarantee that the paint on auto parts surface realizes fast drying, guarantee auto parts's processingquality.
Drawings
FIG. 1 is an internal structure diagram of an efficient spraying device for automobile parts according to the present invention;
FIG. 2 is a top view of the high-efficiency spraying apparatus for automobile parts according to the present invention;
FIG. 3 is a schematic structural view of a spraying device in the high-efficiency spraying equipment for automobile parts according to the present invention;
fig. 4 is the utility model provides a drying device's among high-efficient spraying equipment of auto parts structural schematic.
In the figure: the device comprises a working box body 1, a first supporting seat 2, a first conveying chain plate 3, a first servo motor 4, a turnover shaft 5, a gear set 6, a turnover plate 7, a second supporting seat 8, a second conveying chain plate 9, a second servo motor 10, a fixing plate 11, a spraying device 12, a drying device 13, a feeding hole 14, a material guide plate 15, a horizontal plate 16, a spraying box body 1201, a first mounting plate 1202, a paint placing dish 1203, a first material conveying pipe 1204 hanging column 1205, a mounting seat 1206, a first spray head 1207, a first material conveying pipe 1208, a second material conveying pipe 1209, a first open-close valve 1210, a feeding pipe 1211, a drying box body 1301, a second mounting plate 1302, a gas heater 1303, a gas spraying pipe 1304, a second hanging column 1305, a second spray head 1306, a gas guide pipe 1307.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, an efficient spraying device for automobile parts comprises a working box body 1, wherein one side of the rear end of the inner bottom surface of the working box body 1 is fixedly connected with a first supporting seat 2 through screws, the first supporting seats 2 are provided with two parts and distributed at two side positions, a first conveying chain plate 3 is arranged between the first supporting seat 2 and the rear side wall of the working box body 1, a first servo motor 4 is arranged on the outer side of the rear end surface of the working box body 1, the output end of the first servo motor 4 is fixedly connected with the input end of the first conveying chain plate 3, a turnover shaft 5 is arranged on one side of the first servo motor 4, which is far away from the first conveying chain plate 3, the turnover shaft 5 is rotatably connected with the output end of the first servo motor 4 through a gear set 6, one end of the turnover shaft 5 penetrates through the working box body 1 and is fixedly connected with, two supporting seats 8 are arranged and distributed at the front end and the rear end, a conveying chain plate II 9 is arranged between the two supporting seats II 8 and the side wall of the working box body 1, a servo motor II 10 is arranged at the outer end of the working box body 1 close to the conveying chain plate II 9, the output end of the servo motor II 10 is fixedly connected with the input end of the conveying chain plate II 9, a fixing plate 11 is arranged at one side of the middle part of the conveying chain plate II 9 close to the conveying chain plate I3, the fixing plate 11 is fixed on the inner bottom surface of the working box body 1 through screws, a spraying device 12 and a drying device 13 are arranged at the upper ends of the conveying chain plate I3 and the conveying chain plate II 9, the spraying device 12 comprises a spraying box body 1201, the inner walls of the two sides of the spraying box body 1201 are fixedly connected with a mounting plate I1202 through screws, the upper end, a hanging post I1205 is fixedly connected between the material conveying pipe 1204 and the mounting plate I1202 through screws, two sides of the lower end of the spraying box body 1201 are fixedly connected with a mounting seat 1206 through screws, one side of the lower end of the material conveying pipe 1204 and one side of the mounting seat 1206 close to the center of the spraying box body 1201 are provided with a first spray head 1207, a plurality of first spray heads 1207 are arranged, the lower end of one side of the paint placing vessel 1203 close to the center of the spraying box body 1201 is connected with a first guide pipe 1208 in a penetrating way, the lower end of the first guide pipe 1208 penetrates through the mounting plate I1202 and is connected to the material conveying pipe 1204 in a penetrating way, two guide pipes 1209 are also connected with two lower ends of the first guide pipe 1208 in a penetrating way, one end of the second guide pipe 1209 extends into the mounting seat 1206, the first spray head 1207 on the mounting seat 1206 is arranged on the second guide pipe 1209, a first through stop valve 1210 is also arranged on the first guide, drying device 13 includes stoving box 1301, there are two 1302 of mounting panel through screw fixedly connected with in the inner wall both sides of stoving box 1301, there is gas heater 1303 through screw fixed in two 1302 upper end one sides of mounting panel, the lower extreme of two 1302 of mounting panel is equipped with jet-propelled pipe 1304, and through two 1305 of screw fixedly connected with peg between the lower terminal surface of jet-propelled pipe 1304 and two 1302 of mounting panel, gas heater 1303's output fixedly connected with air duct 1307, and the lower extreme through connection of air duct 1307 is on jet-propelled pipe 1304, two 1306 of shower nozzles are still installed to the lower extreme of jet-propelled pipe 1304, and two 1306 of shower nozzles are equipped with a plurality ofly, install logical no valve two 1308 on the air duct.
The utility model discloses a theory of operation is: when the automobile part spraying device is used, firstly, automobile parts are thrown in through the feeding hole 14, the automobile parts slowly fall on the first conveying chain plate 3 under the action of the material guide plate 15, the first servo motor 4 is opened, the first conveying chain plate 3 is driven to rotate through the first servo motor 4, so that the parts are conveyed into the spraying box body 1201, the first check valve 1210 is opened, at the moment, paint is conveyed through the first material guide pipe 1208 and the second material guide pipe 1209 and is sprayed out through the first spray nozzle 1207, so that spraying work on the upper end and the front and rear side walls of the automobile parts is realized, after spraying is finished, conveying is continued through the first conveying chain plate 3, at the moment, the gas heater 1303 is opened, heated gas is guided into the gas spraying pipe 1304 through the gas guide pipe 1307 and is used for drying the paint on the surfaces of the automobile parts through the second spray nozzle 1306, after drying is finished, the parts are conveyed continuously through the first conveying chain plate 3, the parts fall on the turnover plate 7, at the moment, through the action of, and starting the second servo motor 10, and enabling the automobile parts to pass through the spraying device 12 and the drying device 13 again under the driving of the second servo motor 10, so that the spraying and drying work of the parts is completed.
Further, a feeding hole 14 is formed in one side, close to the side far away from the conveying chain plate II 9, of the upper end of the working box body 1, a material guide plate 15 is fixedly connected to the inner wall of the feeding hole 14 through screws, the material guide plate 15 is located on the inner side of the working box body 1 and is arranged in a downward inclining mode, so that parts can fall onto the conveying chain plate I3 slowly, horizontal plates 16 are arranged at the lower ends of the servo motor I4 and the servo motor II 10, the servo motor I4 and the servo motor II 10 are fixedly connected to the horizontal plates 16 through screws, the horizontal plates 16 are fixedly connected to the outer wall of the working box body 1 through screws, so that the working stability of the servo motor I4 and the servo motor II 10 is guaranteed, a plurality of air injection pipes 1304 are arranged, two sides of the air injection pipes 1304 are bent downwards, so that drying of automobile parts is achieved, the production quality is guaranteed, and the, the returning face plate 7 is equipped with four and evenly distributed on the body of rod outer wall of trip shaft 5, thereby realize auto parts's continuous upset operation, the spraying box 1201 of carrying the first 3 upper ends of link joint and stoving box 1301 all through screw fixed connection on the interior bottom surface of work box 1, the spraying box 1201 of carrying the second 9 upper ends of link joint and stoving box 1301 all through screw fixed connection on the lateral wall of the good work box 1 of fixed plate 11, thereby guarantee that spraying device 12 and drying device 13 move more steadily, the center of mount pad 1206 flushes with the up end of carrying the first 3 of link joint and carrying the second 9 of link joint, be convenient for carry out the spraying to auto parts lateral wall.
Above, only be the concrete implementation of 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 is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims (6)

1. The efficient spraying equipment for the automobile parts comprises a working box body (1) and is characterized in that one side of the rear end of the inner bottom surface of the working box body (1) is fixedly connected with a first supporting seat (2) through screws, the first supporting seat (2) is provided with two supporting seats and distributed at positions on two sides, a first conveying chain plate (3) is arranged between the first supporting seat (2) and the rear side wall of the working box body (1), a first servo motor (4) is arranged on the outer side of the rear end surface of the working box body (1), the output end of the first servo motor (4) is fixedly connected with the input end of the first conveying chain plate (3), a turnover shaft (5) is arranged on one side, away from the first conveying chain plate (3), of the first servo motor (4), the output end of the turnover shaft (5) is rotatably connected with the output end of the first servo motor (4) through a gear set (6), one end of the turnover shaft (5) penetrates through the working box body, a second supporting seat (8) is fixed to the other side of the inner bottom surface of the working box body (1) through screws, the second supporting seats (8) are arranged at the front end and the rear end, two conveying chain plates (9) are arranged between the second supporting seats (8) and the side wall of the working box body (1), a second servo motor (10) is arranged at the outer end, close to the second conveying chain plates (9), of the working box body (1), the output end of the second servo motor (10) is fixedly connected with the input end of the second conveying chain plates (9), a fixing plate (11) is arranged at one side, close to the first conveying chain plates (3), of the middle of the second conveying chain plates (9), the fixing plate (11) is fixed to the inner bottom surface of the working box body (1) through screws, and a spraying device (12) and a drying device (13) are arranged at the upper ends of the first;
the spraying device (12) comprises a spraying box body (1201), the inner walls of two sides of the spraying box body (1201) are fixedly connected with a first mounting plate (1202) through screws, one side of the upper end of the first mounting plate (1202) is fixedly connected with a paint placing vessel (1203) through screws, the lower end of the first mounting plate (1202) is provided with a material conveying pipe (1204), a first hanging column (1205) is fixedly connected between the material conveying pipe (1204) and the first mounting plate (1202) through screws, two sides of the lower end of the spraying box body (1201) are fixedly connected with a mounting seat (1206) through screws, the lower end of the material conveying pipe (1204) and one side of the mounting seat (1206) close to the center of the spraying box body (1201) are provided with a first spray head (1207) in a plurality, the lower end of one side of the paint placing vessel (1203) close to the center of the spraying box body (1201) is connected with a first guide pipe (1208) in a penetrating manner, and the lower end of the first guide pipe (1208, two sides of the lower end of the first material guide pipe (1208) are also connected with a second material guide pipe (1209) in a penetrating manner, one end of the second material guide pipe (1209) extends into the mounting seat (1206), the first spray nozzle (1207) on the mounting seat (1206) is mounted on the second material guide pipe (1209), the first material guide pipe (1208) is further provided with a first check valve (1210), one side of the upper end of the spraying box body (1201) is connected with a feeding pipe (1211) in a penetrating manner, and the upper end of the feeding pipe (1211) penetrates through the spraying box body (1201);
the drying device (13) comprises a drying box body (1301), two sides of the inner wall of the drying box body (1301) are fixedly connected with a second mounting plate (1302) through screws, a gas heater (1303) is fixed to one side of the upper end of the second mounting plate (1302) through screws, a gas spraying pipe (1304) is arranged at the lower end of the second mounting plate (1302), a second hanging column (1305) is fixedly connected between the gas spraying pipe (1304) and the lower end face of the second mounting plate (1302) through screws, an air guide pipe (1307) is fixedly connected to the output end of the gas heater (1303), the lower end of the air guide pipe (1307) is connected to the gas spraying pipe (1304) in a penetrating mode, a second spray head (1306) is further installed at the lower end of the gas spraying pipe (1304), a plurality of second spray heads (1306) are arranged, and a second.
2. The efficient automobile part spraying equipment as claimed in claim 1, wherein a feeding hole (14) is formed in the upper end of the working box body (1) close to one side far away from the second conveying chain plate (9), a material guide plate (15) is fixedly connected to the inner wall of the feeding hole (14) through a screw, the material guide plate (15) is located on the inner side of the working box body (1) and is inclined downwards, horizontal plates (16) are arranged at the lower ends of the first servo motor (4) and the second servo motor (10), the first servo motor (4) and the second servo motor (10) are fixedly connected to the horizontal plates (16) through screws, and the horizontal plates (16) are fixedly connected to the outer wall of the working box body (1) through screws.
3. The high-efficiency spraying equipment for the automobile parts is characterized in that a plurality of gas nozzles (1304) are arranged, and two sides of each gas nozzle (1304) are bent downwards.
4. The efficient automobile part spraying equipment as claimed in claim 1, wherein the turnover shaft (5) is rotatably connected with the rear side wall of the working box body (1) through a rolling bearing, and the turnover plates (7) are provided with four pieces and are uniformly distributed on the outer wall of the rod body of the turnover shaft (5).
5. The efficient automobile part spraying equipment as claimed in claim 1, characterized in that the spraying box body (1201) and the drying box body (1301) at the upper end of the first conveying chain plate (3) are fixedly connected to the inner bottom surface of the working box body (1) through screws, and the spraying box body (1201) and the drying box body (1301) at the upper end of the second conveying chain plate (9) are fixedly connected to the side wall of the fixing plate (11) and the working box body (1) through screws.
6. The high-efficiency automobile part spraying equipment as claimed in claim 1, wherein the center of the mounting seat (1206) is flush with the upper end faces of the first conveying chain plate (3) and the second conveying chain plate (9).
CN201921162149.4U 2019-07-23 2019-07-23 High-efficient spraying equipment of auto parts Expired - Fee Related CN210304290U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921162149.4U CN210304290U (en) 2019-07-23 2019-07-23 High-efficient spraying equipment of auto parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921162149.4U CN210304290U (en) 2019-07-23 2019-07-23 High-efficient spraying equipment of auto parts

Publications (1)

Publication Number Publication Date
CN210304290U true CN210304290U (en) 2020-04-14

Family

ID=70125097

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921162149.4U Expired - Fee Related CN210304290U (en) 2019-07-23 2019-07-23 High-efficient spraying equipment of auto parts

Country Status (1)

Country Link
CN (1) CN210304290U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113522572A (en) * 2021-07-08 2021-10-22 安徽天元电缆有限公司 Cable testing bridge processing is with high-efficient paint spraying apparatus in no dead angle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113522572A (en) * 2021-07-08 2021-10-22 安徽天元电缆有限公司 Cable testing bridge processing is with high-efficient paint spraying apparatus in no dead angle

Similar Documents

Publication Publication Date Title
CN105507565B (en) Automatic spraying machine
CN210304290U (en) High-efficient spraying equipment of auto parts
CN111327262A (en) Solar photovoltaic module wiping mechanism
CN212349254U (en) Paint spraying apparatus is used in auto parts processing
CN211514914U (en) Spraying equipment for automotive interior parts
CN211801810U (en) Release agent spraying and smearing device for sleeper mold
CN217411208U (en) Spraying equipment of steel door production usefulness
CN217557546U (en) Spraying device for building decoration engineering
CN217491299U (en) Shock-proof type supporting coating device that slides for building materials processing
CN211080923U (en) Coating spraying device for interior decoration
CN103264004A (en) Wood sprinkling machine
CN209874396U (en) Spraying equipment for finishing work
CN211306317U (en) Manipulator with paint spraying and coating mechanism
CN218048610U (en) Painting device for processing flat color steel plate
CN114377892A (en) Surface coating device is used in grey cast iron production
CN208991062U (en) A kind of circulating spraying equipment up and down
CN216766659U (en) Device is paintd to panel pigment for building engineering
CN216459497U (en) Novel high-speed release agent coating machine
CN215390308U (en) Automatic energy-saving paint spraying equipment
CN221016909U (en) Spraying machine with dust removal function for steel structure production
CN220705062U (en) A spraying and painting integrated device for construction
CN220004475U (en) Building construction material surface spraying device
CN217730030U (en) Energy-conserving intelligent air brushing device of shower nozzle
CN213529267U (en) Spraying device
CN217190551U (en) Panel paint spraying machine for producing sports floor

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200414