CN110937006A - Material conveying device for laser engraving machine - Google Patents
Material conveying device for laser engraving machine Download PDFInfo
- Publication number
- CN110937006A CN110937006A CN201911341282.0A CN201911341282A CN110937006A CN 110937006 A CN110937006 A CN 110937006A CN 201911341282 A CN201911341282 A CN 201911341282A CN 110937006 A CN110937006 A CN 110937006A
- Authority
- CN
- China
- Prior art keywords
- carrying
- laser engraving
- engraving machine
- carrying box
- plate
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
Abstract
The invention discloses a material conveying device for a laser engraving machine, which comprises a trolley bottom plate, wherein the trolley is connected with a carrying box in a clamping manner through a side plate, the carrying box is internally and movably connected with a carrying plate through a slide rod, pin rods are arranged in movable grooves at two ends of the carrying plate, first clamping grooves are respectively formed in two sides of the carrying box, the pin rods are movably clamped in the first clamping grooves, a blower is installed at the bottom of the carrying box and is connected to the bottom end of a buffer air cavity through an air conveying pipe, the buffer air cavity is fixedly communicated with the carrying box, an air channel is fixedly formed in the surface of the buffer air cavity connected with the carrying box, and an air deflector is fixedly installed on the air channel; the invention can lead in air through the blower, realize the cooling of the carving piece, realize the layered placement through the carrying plate, prevent the carving piece from wearing, and the carrying plate is blocked in the carrying box through the pin rod, realize the height adjustment.
Description
Technical Field
The invention belongs to the technical field of laser engraving, and particularly relates to a material conveying device for a laser engraving machine.
Background
As the name suggests, the laser engraving machine is an advanced device for engraving materials to be engraved by using laser. Laser engravers are different from mechanical engravers, which engrave something else using mechanical means, such as very hard materials like diamond, and other traditional manual engraving ways.
The laser engraving machine uses the heat energy of laser to engrave the material, and the laser in the laser engraving machine is the core of the laser engraving machine. Generally speaking, the laser engraving machine has wider application range, higher engraving precision and faster engraving speed. Compared with the traditional manual carving mode, the laser carving can also achieve a fine carving effect which is not inferior to the technological level of manual carving. Because of the many advantages of laser engraving machines, the use of laser engraving machines has now gradually replaced the traditional engraving devices and methods. Becomes the main engraving device.
However, in the prior art, when carving shifts transportation, the carving is directly stacked together to realize carrying, but the carving is just carved after completion, the surface temperature of the carving is higher, if cooling is not carried out, the carving can easily cause abrasion when stacked together, the lines on the carving surface are damaged, the carving cannot reach the standard, and the carving can be damaged, and in the carving process, the carving cannot be completely the same in size, so that the height of the carrying plate needs to be adjusted, the carving can be put down at the height between the carrying plates, and the carving with different sizes can be transferred.
Therefore, the material conveying device for the laser engraving machine is provided for solving the problems in the prior art, the cooling and cooling of the engraving part can be realized by introducing air into the blower, the layered placement of the engraving part is realized by the carrying plate, the engraving part is prevented from being abraded, the carrying plate is clamped in the carrying box through the pin rod, and the height adjustment is realized.
Disclosure of Invention
The invention aims to provide a material conveying device for a laser engraving machine, which aims to solve the problems that engraving pieces are stacked and easy to wear, the surface temperature of the engraved pieces after engraving is high, heat dissipation and cooling cannot be realized, the engraving pieces with various sizes cannot be adjusted and adapted, and the like in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a material conveying device for a laser engraving machine comprises a trolley bottom plate, wherein a support rod is welded at the tail end of the trolley bottom plate, handles are welded on the support rod, side plates are welded at two sides of the trolley bottom plate, a second clamping groove is fixedly formed in the side plates, a carrying box is fixedly mounted in the side plates, clamping blocks are fixedly arranged at two side edges of the carrying box, the clamping blocks are movably clamped and connected in the second clamping groove, sliding rods are fixedly mounted at two end side edges of the carrying box, a carrying plate is connected with the sliding rods in a penetrating manner, movable grooves are fixedly formed in two ends of the carrying plate, pin rods are movably arranged in the movable grooves, first clamping grooves are formed in two sides of the carrying box, the pin rods are movably clamped in the first clamping grooves, a fan cavity is fixedly formed in the bottom of the tail end of the carrying box, and a mounting plate is fixedly mounted on the inner side of the fan cavity through, the air blower is fixedly mounted on the mounting plate, an air delivery pipe is fixedly connected to the output end of the air blower, the air delivery pipe is fixedly connected to the bottom end of the buffer air cavity, the buffer air cavity is fixedly arranged at the tail end of the carrying box, the buffer air cavity is fixedly communicated with the carrying box, an air channel is fixedly formed in the surface, connected with the carrying box, of the buffer air cavity, and an air deflector is fixedly mounted on the air channel.
Preferably, at least four groups of universal wheels are welded at the bottom of the trolley bottom plate, and the four groups of universal wheels are fixedly installed at four corners of the bottom of the trolley bottom plate respectively.
Preferably, the handle is fixedly sleeved with a rubber sleeve, a limiting baffle is fixedly arranged at the end part of the rubber sleeve, and the rubber sleeve is provided with dense anti-skidding grooves.
Preferably, the movable groove is arranged in an inverted L shape, the first clamping groove is also arranged in an inverted L shape, and the diameters of the movable groove and the first clamping groove are the same.
Preferably, both sides all seted up two sets of second draw-in grooves on the curb plate at least, the both sides of carrying the thing case also all are equipped with two sets of fixture blocks at least.
Preferably, the first clamping grooves on two sides of the carrying box are at least provided with ten groups, the height between each group of first clamping grooves cannot exceed 5cm, and the carrying plate is at least provided with four blocks.
Preferably, a ventilation window is fixedly arranged at the front end of the fan cavity, a grid is fixedly arranged on the inner side of the ventilation window, and the air deflector inclines downwards by ten degrees to fifteen degrees.
Preferably, the object carrying plate is equidistantly provided with hole grooves, and the object carrying plate is paved with silica gel pads.
The invention has the technical effects and advantages that: compared with the prior art, the material conveying device for the laser engraving machine has the following advantages that:
1. the invention adopts the trolley to transport the carved finished product, and the carrying box is movably arranged in the trolley to realize the placement of the carved pieces, and the carrying plate is arranged in the carrying box to realize the layered placement of the carved pieces, thereby preventing the carved pieces from rubbing with each other during the stacking to cause the abrasion of the carved patterns;
2. the slide bars are arranged on the two sides of the carrying box, so that the carrying plate can slide in a limiting manner, the first clamping grooves are formed in the side edges of the carrying box and can be clamped and connected with the pin rods in the carrying plate, the carrying plate can be positioned in the carrying box, and the carrying plate can be fixed according to the size of a carving piece;
3. according to the invention, the blower is arranged at the bottom of the carrying box, air is blown into the buffer air cavity by the blower, and the air is conveyed into the carrying box through the buffer air cavity, so that the air in the carrying box flows, and the cooling of the carved objects is realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic view of the connection of the support plates of the present invention;
FIG. 4 is a schematic view of part A of the present invention;
FIG. 5 is a schematic cross-sectional view of the present invention;
FIG. 6 is a schematic view of part B of the present invention.
In the figure: 1. a trolley bottom plate; 2. a universal wheel; 3. a strut; 4. a handle; 5. a rubber sleeve; 6. a side plate; 7. a carrying box; 8. a first card slot; 9. a movable groove; 10. a pin rod; 11. a loading plate; 12. a slide bar; 13. a second card slot; 14. a clamping block; 15. a fan cavity; 16. grid forming; 17. mounting a plate; 18. a blower; 19. a wind delivery pipe; 20. a buffer air cavity; 21. an air duct; 22. an air deflector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a material conveying device for a laser engraving machine, which comprises a trolley bottom plate 1, wherein the trolley bottom plate is provided with a plurality of guide rails;
according to the figure 1, in order to enable the transport trolley to move conveniently, at least four groups of universal wheels 2 are welded at the bottom of a trolley bottom plate 1, the four groups of universal wheels 2 are fixedly installed at four corners of the bottom of the trolley bottom plate 1 respectively, in order to facilitate pushing of the transport trolley, a support rod 3 is welded at the tail end of the trolley bottom plate 1, a handle 4 is welded on the support rod 3, in order to stably hold and push the transport trolley, a rubber sleeve 5 is fixedly sleeved on the handle 4, a limit baffle is fixedly arranged at the end part of the rubber sleeve 5, and a dense anti-skidding groove is formed in the rubber sleeve 5;
according to the figures 1 and 6, in order to realize the fixed installation of the carrying box 7, the side plates 6 are welded on the two sides of the trolley bottom plate 1, in order to enable the carrying box 7 to be clamped on the side plates 6 and prevent the carrying box from falling off during movement, at least two groups of second clamping grooves 13 are formed in the side plates 6 on the two sides, the carrying box 7 is fixedly installed in the side plates 6, at least two groups of clamping blocks 14 are arranged on the two sides of the carrying box 7, and the clamping blocks 14 are movably clamped and connected in the second clamping grooves 13;
according to the figures 2-4, in order to realize the movable connection of the carrying plate 11, the side edges of the two ends of the carrying box 7 are fixedly provided with a slide rod 12, the slide rod 12 is connected with the carrying plate 11 in a penetrating way, in order to realize the ventilation of the carrying plate 11, the carrying plate 11 is provided with a hole groove at equal distance, in order to prevent the carrying plate 11 from causing the abrasion to the carving piece, the carrying plate 11 is paved with a silica gel pad, in order to realize the movable rod clamping of the pin rod 10, the two ends of the carrying plate 11 are fixedly provided with movable grooves 9, the inner part of the movable grooves 9 is movably provided with the pin rod 10, in order to realize the fixed support of the carrying plate 11, the two sides of the carrying box 7 are provided with first clamping grooves 8, in order to facilitate the adjustment and control of the distance between the carrying plates 11, the first clamping grooves 8 at least are provided with ten groups, and the distance between the first clamping grooves 8 of each, in order to transport multiple groups of carving pieces, at least four carrying plates 11 are arranged, in order to achieve stable clamping connection of the pin rods 10, the pin rods 10 are movably clamped inside the first clamping grooves 8, the movable grooves 9 are arranged in an inverted L shape, the first clamping grooves 8 are also arranged in an inverted L shape, and the diameters of the movable grooves 9 and the first clamping grooves 8 are the same;
according to fig. 5, in order to realize cooling and heat dissipation of the carved piece, a fan cavity 15 is fixedly arranged at the bottom of the tail end of the carrying box 7, in order to realize air inlet, a ventilation window is fixedly arranged at the front end of the fan cavity 15, a grid 16 is fixedly arranged at the inner side of the ventilation window, a mounting plate 17 is fixedly arranged at the inner side of the fan cavity 15 through a fixing bolt, in order to realize air delivery, a blower 18 is fixedly arranged on the mounting plate 17, an output end of the blower 18 is fixedly connected with a wind delivery pipe 19, the wind delivery pipe 19 is fixedly connected at the bottom end of a buffer wind cavity 20, the buffer wind cavity 20 is fixedly arranged at the tail end of the carrying box 7, in order to make air blow out uniformly, an air channel 21 is fixedly arranged on the surface where the buffer wind cavity 20 is connected with the carrying box 7, in order to realize air channel control of the direction of air output, an air deflector 22 is fixedly arranged, the air deflection plate 22 is inclined downwardly by ten to fifteen degrees.
The working principle is as follows: after the carving of the carving piece is finished, the carving piece is placed into the carrying box 7, and before the carving piece is placed, the carrying plate 11 inside the carrying box 7 needs to be adjusted according to the size of the carving piece, so that the distance between the carrying plates 11 can be conveniently placed on the carving piece, then the pin rods 10 slide into the first clamping grooves 8 on the two sides of the carrying box 7 from the movable grooves 9, then the carving piece is placed on the carrying plate 11, then the blower 18 inside the blower cavity 15 is started, so that the blower 18 inputs air into the buffering air cavity 20 through the air conveying pipe 19, the air is uniformly blown into the carrying box 7 through the air duct 21 in the buffering air cavity 20, the air guide plate 22 is arranged downwards, downward conveying of the air can be realized, and the hole grooves are formed in the carrying plate 11, so that the air in the carrying box 7 can flow rapidly, and realizing rapid cooling.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a material conveyor for laser engraving machine, includes dolly bottom plate (1), its characterized in that: the trolley is characterized in that a supporting rod (3) is welded at the tail end of the trolley bottom plate (1), a handle (4) is welded on the supporting rod (3), side plates (6) are welded on two sides of the trolley bottom plate (1), a second clamping groove (13) is fixedly formed in the side plates (6), a carrying box (7) is fixedly mounted in the side plates (6), clamping blocks (14) are fixedly arranged on two side edges of the carrying box (7), the clamping blocks (14) are movably clamped and connected in the second clamping groove (13), sliding rods (12) are fixedly mounted on two side edges of two ends of the carrying box (7), a carrying plate (11) is connected in a penetrating manner through the sliding rods (12), movable grooves (9) are fixedly formed in two ends of the carrying plate (11), pin rods (10) are movably arranged in the movable grooves (9), and first clamping grooves (8) are formed in two sides of the carrying box (7), pin pole (10) activity block is in the inside of first draw-in groove (8), the tail end bottom of carrying thing case (7) is fixed to be seted up fan chamber (15), the inboard of fan chamber (15) has mounting panel (17) through fixing bolt fixed mounting, fixed mounting has hair-dryer (18) on mounting panel (17), the output fixedly connected with air transmission pipe (19) of hair-dryer (18), air transmission pipe (19) fixed connection is in the bottom in buffering wind chamber (20), the fixed tail end that sets up at carrying thing case (7) in buffering wind chamber (20), buffering wind chamber (20) and carrying thing case (7) fixed intercommunication, fixed wind channel (21) of having seted up on the face that buffering wind chamber (20) and carrying thing case (7) are connected, fixed mounting has aviation baffle (22) on wind channel (21).
2. The material conveying device for the laser engraving machine according to claim 1, characterized in that: the trolley is characterized in that at least four groups of universal wheels (2) are welded at the bottom of the trolley bottom plate (1), and the four groups of universal wheels (2) are fixedly installed at four corners of the bottom of the trolley bottom plate (1) respectively.
3. The material conveying device for the laser engraving machine according to claim 1, characterized in that: the handle (4) is fixedly sleeved with a rubber sleeve (5), the end part of the rubber sleeve (5) is fixedly provided with a limiting baffle, and the rubber sleeve (5) is provided with dense anti-skidding grooves.
4. The material conveying device for the laser engraving machine according to claim 1, characterized in that: the movable groove (9) is arranged to be of an inverted L shape, the first clamping groove (8) is also arranged to be of an inverted L shape, and the diameters of the movable groove (9) and the first clamping groove (8) are the same.
5. The material conveying device for the laser engraving machine according to claim 1, characterized in that: two sets of second clamping grooves (13) are at least formed in the side plates (6) on the two sides, and two sets of clamping blocks (14) are at least arranged on the two sides of the carrying box (7).
6. The material conveying device for the laser engraving machine according to claim 1, characterized in that: first draw-in groove (8) of carrying thing case (7) both sides are equipped with ten groups at least, and the height of leaving a distance between every first draw-in groove of group (8) can not exceed 5cm, and carry thing board (11) and be equipped with four at least.
7. The material conveying device for the laser engraving machine according to claim 1, characterized in that: the front end of the fan cavity (15) is fixedly provided with a ventilation window, the inner side of the ventilation window is fixedly provided with a grid (16), and the air deflector (22) inclines downwards by ten degrees to fifteen degrees.
8. The material conveying device for the laser engraving machine according to claim 1, characterized in that: the carrying plate (11) is equidistantly provided with hole grooves, and the carrying plate (11) is paved with silica gel pads.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911341282.0A CN110937006A (en) | 2019-12-24 | 2019-12-24 | Material conveying device for laser engraving machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911341282.0A CN110937006A (en) | 2019-12-24 | 2019-12-24 | Material conveying device for laser engraving machine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110937006A true CN110937006A (en) | 2020-03-31 |
Family
ID=69912000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911341282.0A Pending CN110937006A (en) | 2019-12-24 | 2019-12-24 | Material conveying device for laser engraving machine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110937006A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112642716A (en) * | 2020-09-02 | 2021-04-13 | 王卫华 | Intelligent material handling vehicle with sorting function |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101454234B1 (en) * | 2013-07-01 | 2014-11-03 | 한국기계연구원 | Smart cart |
CN106627706A (en) * | 2016-12-30 | 2017-05-10 | 东莞市圣荣自动化科技有限公司 | Radiating small cart applied to tin furnace carrier |
CN208128738U (en) * | 2018-04-16 | 2018-11-20 | 山东交通学院 | Electric car element radiating processing system |
CN110001724A (en) * | 2019-03-18 | 2019-07-12 | 新昌县乐意工艺品有限公司 | A kind of frangible craftwork transports device safely |
CN209274661U (en) * | 2018-10-30 | 2019-08-20 | 江苏利尔机车科技有限公司 | Transfer car(buggy) is used in a kind of processing of automobile radiators |
-
2019
- 2019-12-24 CN CN201911341282.0A patent/CN110937006A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101454234B1 (en) * | 2013-07-01 | 2014-11-03 | 한국기계연구원 | Smart cart |
CN106627706A (en) * | 2016-12-30 | 2017-05-10 | 东莞市圣荣自动化科技有限公司 | Radiating small cart applied to tin furnace carrier |
CN208128738U (en) * | 2018-04-16 | 2018-11-20 | 山东交通学院 | Electric car element radiating processing system |
CN209274661U (en) * | 2018-10-30 | 2019-08-20 | 江苏利尔机车科技有限公司 | Transfer car(buggy) is used in a kind of processing of automobile radiators |
CN110001724A (en) * | 2019-03-18 | 2019-07-12 | 新昌县乐意工艺品有限公司 | A kind of frangible craftwork transports device safely |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112642716A (en) * | 2020-09-02 | 2021-04-13 | 王卫华 | Intelligent material handling vehicle with sorting function |
CN112642716B (en) * | 2020-09-02 | 2022-06-10 | 王卫华 | Intelligent material handling vehicle with sorting function |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN114290198B (en) | Device and method for polishing excircle of alloy bar | |
CN110937006A (en) | Material conveying device for laser engraving machine | |
CN103273776A (en) | Numerical control five-shaft linkage ceramic engraving machine | |
CN205588853U (en) | Novel carving machine | |
CN206654534U (en) | Glass plate aligned transmissions roller-way | |
CN104001854A (en) | Method for producing inspection well cover and evanescent mold for casting inspection well cover | |
CN104815967B (en) | A kind of can the containerless casting forming method of automatic sand draining and equipment | |
CN216859220U (en) | Mold core edge trimming device | |
CN207581652U (en) | For processing the bending apparatus of 3D bend glasses | |
CN203888382U (en) | Automatic pneumatic marking machine | |
CN107096956B (en) | Full-automatic plate cutting device | |
CN213732003U (en) | Paperboard cutting machine | |
CN204145200U (en) | A kind of stator shaping device | |
CN106004944A (en) | Power device transportation cart | |
CN109422089A (en) | Full-automatic cast tube feeding conveyor structure | |
CN206614697U (en) | On a kind of glass cutting machine every platen | |
CN208022227U (en) | A kind of self-induction rollgang | |
CN109279536A (en) | A kind of bearing machining feeding transport vehicle | |
CN217520286U (en) | Kiln burnt product handling device with cooling function | |
CN217438261U (en) | Annealing furnace burner replacing device | |
CN105774863A (en) | Lifting-type transfer trolley | |
CN106827259A (en) | On a kind of glass cutting machine every platen | |
CN204918687U (en) | Processing apparatus behind electric automobile accessory | |
CN106741041A (en) | A kind of axostylus axostyle transport box | |
CN213202815U (en) | Glass beverage bottle processingequipment of multistation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200331 |
|
RJ01 | Rejection of invention patent application after publication |