CN112208142A - Edge folding device for processing packaging box - Google Patents
Edge folding device for processing packaging box Download PDFInfo
- Publication number
- CN112208142A CN112208142A CN202011042242.9A CN202011042242A CN112208142A CN 112208142 A CN112208142 A CN 112208142A CN 202011042242 A CN202011042242 A CN 202011042242A CN 112208142 A CN112208142 A CN 112208142A
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- CN
- China
- Prior art keywords
- plate
- die holder
- motor
- packing box
- processing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/26—Folding sheets, blanks or webs
- B31B50/52—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/26—Folding sheets, blanks or webs
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- Making Paper Articles (AREA)
Abstract
The invention discloses a folding device for processing a packing box, which comprises a base, a top plate, a first motor and a second motor, wherein a folding die holder is arranged above the base, a horizontal electric push rod is respectively arranged on the left side and the right side of the folding die holder, a folding plate is connected to the telescopic end of the horizontal electric push rod, a supporting plate is connected to the lower surface of the folding die holder, an output shaft of the first motor is connected with the supporting plate, a bidirectional screw rod is coaxially and fixedly connected to the output shaft of the second motor, two moving plates are arranged below the top plate, a vertical electric push rod is arranged on the lower surface of each moving plate, a mounting plate is connected to the lower end of each vertical electric push rod, a lifting plate and an elastic column are connected to the lower surface of. According to the invention, through the arrangement of the elastic columns and the extrusion rollers, the edge folding positions of the packing box are stably pressed by the pressing plate, and the packing box is preliminarily folded by the extrusion rollers, so that the edge folding positions of the packing box cannot bulge, and the edge folding quality is ensured.
Description
Technical Field
The invention relates to the technical field of packaging equipment, in particular to a folding device for processing a packaging box.
Background
The packing carton mainly is used for wrapping up the product, guarantees that the product can not damaged in the transportation to can promote the grade of product. The paper packaging box has the characteristics of low manufacturing cost, attractive appearance, simple manufacturing process and the like, is most widely applied, and can be manufactured into a three-dimensional packaging box by a series of procedures of cutting, die cutting, edge folding, binding and the like.
The existing edge folding device for processing the packing box is shown in fig. 1 and comprises an edge folding die holder 9, a pressing plate 14, a vertical electric push rod 20 and an edge folding plate 10, wherein the pressing plate 14 is used for pressing and stabilizing the packing box, then the vertical electric push rod 20 is started, and the edge folding plate 10 folds the packing box, but the pressing plate 14 does not press the position of the packing box needing edge folding, so that the edge folding position of the packing box can bulge when the edge folding plate 10 folds the edge, the edge folding quality is seriously influenced, in addition, the edge folding plate 10 directly extrudes the packing box, and the packing box is easily scratched and damaged; and current hem device can not carry out automatic hem to four sides of packing carton, needs the artifical position of constantly adjusting the hem, and machining efficiency is low.
Therefore, it is desirable to provide a folding device for processing a packing box, which aims to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a folding device for processing a packaging box, which is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a folding device for processing a packing box comprises a base, a top plate, a first motor and a second motor, wherein a folding die holder is arranged above the base, a horizontal electric push rod is arranged on each of the left side and the right side of the folding die holder, a folding plate is connected to the telescopic end of the horizontal electric push rod, a support plate is connected to the lower surface of the folding die holder, the output shaft of the first motor is connected with the central position of the lower surface of the support plate, the lower surface of the top plate is connected with the second motor and a fixed plate, a bidirectional screw rod is coaxially and fixedly connected to the output shaft of the second motor, two movable plates are arranged below the top plate, threaded holes and through holes are formed in the movable plates and are matched and connected with the bidirectional screw rod, guide shafts are connected to the through holes in a sliding fit manner and are fixedly connected, the lower extreme of vertical electric putter is connected with the mounting panel, and the lower surface of mounting panel is connected with lifter plate and elasticity post, and the lower extreme of elasticity post is connected with the clamp plate, and the lower extreme of lifter plate is connected with the squeeze roll.
As a further scheme of the invention, the number of the flanging plates, the moving plate, the vertical electric push rod, the mounting plate, the extruding roller, the elastic column and the pressing plate is two, and the two extruding rollers, the moving plate, the vertical electric push rod, the mounting plate, the extruding roller, the elastic column and the pressing plate are arranged in a bilateral symmetry mode about a symmetry plane of the flanging die holder, two lifting plates are connected to the lower portion of one mounting plate, the two lifting plates are arranged in a bilateral symmetry mode about the symmetry plane of the flanging die holder, the two lifting plates.
As a further scheme of the invention, the two pressing plates are positioned between the two squeezing rollers, the lower surfaces of the pressing plates are bonded with rubber pads, the pressing plates are used for pressing the paper boxes, and the squeezing rollers are used for primarily folding the packaging boxes.
As a further scheme of the invention, the elastic column consists of a fixed column and a telescopic column, the upper end of the fixed column is fixedly connected with the mounting plate, the lower surface of the fixed column is provided with a blind hole, the upper end of the blind hole is provided with a spring, a sliding plate is connected in the blind hole in a sliding fit manner, and the lower surface of the sliding plate is connected with the upper end of the telescopic column.
As a further scheme of the invention, the upper end of the spring is fixedly connected with the top surface of the blind hole, the lower end of the spring is fixedly connected with the sliding plate, the lower end of the blind hole is connected with the baffle plate, the baffle plate is provided with a through groove, the outer side surface of the telescopic column is connected with the through groove in a sliding fit manner, and the lower end of the telescopic column is fixedly connected with the pressing plate.
As a further scheme of the invention, the lower surface of the flanging die holder is provided with a rectangular bump, the upper surface of the supporting plate is provided with a rectangular groove, the rectangular groove is matched with the rectangular bump, the flanging die holder can be directly placed on the flanging die holder through the arrangement of the rectangular groove and the rectangular bump, and the flanging die holder is more convenient to replace.
As a further scheme of the invention, a plurality of support columns are arranged below the support plate, spherical grooves are arranged on the upper surfaces of the support columns, annular grooves are arranged on the lower surface of the support plate, balls are arranged between the annular grooves and the spherical grooves, the upper ends of the balls are movably connected with the annular grooves, and the lower ends of the balls are movably connected with the spherical grooves; the lower ends of the supporting columns are fixedly connected with the upper surface of the base, the central line of the annular groove and the central line of an output shaft of the motor are arranged in a collinear mode, and the plurality of supporting columns are distributed in a circumferential array mode relative to the central line of the annular groove.
As a further scheme of the present invention, the number of the fixing plates is three, the three fixing plates are respectively located at the left end, the middle position and the right end of the guide shaft, and the center line of the guide shaft and the center line of the bidirectional screw are parallel to each other.
As a further scheme of the invention, a bearing is arranged on the fixed plate, an inner hole of the bearing is fixedly connected with the side surface of the bidirectional screw, the number of the bidirectional screws and the number of the guide shafts are both one, and the pressing plate is positioned above the flanging die holder; the support is arranged below the horizontal electric push rod, the support is fixedly installed on the upper surface of the base, and the top plate is fixedly connected with the base through a plurality of supporting columns.
In conclusion, the beneficial effects of the invention are as follows:
according to the invention, through the arrangement of the elastic columns and the extrusion rollers, the edge folding positions of the packing box are stably pressed by the pressing plate, and the packing box is preliminarily folded by the extrusion rollers, so that the edge folding positions of the packing box cannot bulge, and the edge folding quality is ensured; through the arrangement of the moving plate, the flanging die holder, the first motor and the supporting plate, the packing box can be automatically rotated by ninety degrees, so that four sides of the packing box can be folded, the machining efficiency is high, the flanging die holder is convenient to replace, the position of the pressing plate can be adjusted, and the flanging of the packing boxes with different specifications can be further performed.
Drawings
FIG. 1 is a schematic view showing a structure of a folding apparatus for packing box processing in the prior art.
Fig. 2 is a front view structure diagram of a folding device for processing a packing box.
Fig. 3 is a schematic view of a folding device for processing a packing box in a working state.
Fig. 4 is a schematic structural view of a hemming die holder and a support plate in a hemming device for processing a packing box.
Fig. 5 is a three-dimensional view of a hemming die holder and a support plate in a hemming device for processing a packing box.
Fig. 6 is a schematic structural view of an elastic column in a folding device for processing a packing box.
Fig. 7 is a schematic structural view of a top plate in a folding device for processing a packing box.
Reference numerals: 1-base, 2-pillar, 3-bracket, 4-horizontal electric push rod, 5-support column, 6-motor I, 7-support plate, 8-ball, 9-flanging die holder, 10-flanging plate, 11-squeeze roller, 12-lifting plate, 13-mounting plate, 14-pressing plate, 15-elastic column, 16-motor II, 18-top plate, 19-fixing plate, 20-vertical electric push rod, 21-bidirectional screw, 22-bearing, 23-moving plate, 24-guide shaft, 91-rectangular bump, 71-rectangular groove, 72-annular groove, 151-fixing column, 152-blind hole, 153-spring, 154-sliding plate, 155-baffle, 156-telescopic column, 141-rubber pad, 51-spherical groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 2 to 7, a folding device for processing a packing box comprises a base 1, a top plate 18, a first motor 6 and a second motor 16, wherein a folding die holder 9 is arranged above the base 1, a horizontal electric push rod 4 is respectively arranged on the left side and the right side of the folding die holder 9, a folding plate 10 is connected to the telescopic end of the horizontal electric push rod 4, a support plate 7 is connected to the lower surface of the folding die holder 9, the output shaft of the first motor 6 is connected to the central position of the lower surface of the support plate 7, the lower surface of the top plate 18 is connected with the second motor 16 and a fixed plate 19, a two-way screw 21 is coaxially and fixedly connected to the output shaft of the second motor 16, two moving plates 23 are arranged below the top plate 18, threaded holes and through holes are formed in the moving plates 23, the threaded holes are connected with the two-way screw 21 in a, two-way screw rod 21 rotates with fixed plate 19 to be connected, the lower surface mounting of movable plate 23 has vertical electric putter 20, and vertical electric putter 20's lower extreme is connected with mounting panel 13, and the lower surface of mounting panel 13 is connected with lifter plate 12 and elastic column 15, and the lower extreme of elastic column 15 is connected with clamp plate 14, and the lower extreme of lifter plate 12 is connected with squeeze roll 11.
The quantity of the flanging plates 10, the moving plate 23, the vertical electric push rod 20, the mounting plate 13, the squeeze roll 11, the elastic column 15 and the pressing plate 14 is two and is all arranged in a bilateral symmetry mode about the symmetry plane of the flanging die holder 9, the lower portion of one mounting plate 13 is connected with two lifting plates 12, the two lifting plates 12 are symmetrically arranged in a front-back symmetry mode about the symmetry plane of the flanging die holder 9, and two ends of the squeeze roll 11 are rotatably connected with the lifting plates 12.
The two pressing plates 14 are positioned between the two squeezing rollers 11, the rubber pad 141 is adhered to the lower surface of the pressing plate 14, the pressing plate 14 is used for pressing the paper box, and the squeezing rollers 11 are used for primarily folding the packaging box.
The elastic column 15 is composed of a fixed column 151 and a telescopic column 156, the upper end of the fixed column 151 is fixedly connected with the mounting plate 13, a blind hole 152 is formed in the lower surface of the fixed column 151, a spring 153 is arranged at the upper end of the blind hole 152, a sliding plate 154 is connected in the blind hole 152 in a sliding fit mode, and the lower surface of the sliding plate 154 is connected with the upper end of the telescopic column 156.
The upper end of the spring 153 is fixedly connected with the top surface of the blind hole 152, the lower end of the spring 153 is fixedly connected with the sliding plate 154, the lower end of the blind hole 152 is connected with the baffle 155, the baffle 155 is provided with a through groove, the outer side surface of the telescopic column 156 is connected with the through groove in a sliding fit manner, and the lower end of the telescopic column 156 is fixedly connected with the pressing plate 14.
The number of the fixing plates 19 is three, the three fixing plates 19 are respectively positioned at the left end, the middle and the right end of the guide shaft 24, and the central line of the guide shaft 24 is parallel to the central line of the bidirectional screw 21.
The fixed plate 19 is provided with a bearing 22, an inner hole of the bearing 22 is fixedly connected with the side surface of the bidirectional screw 21, the bidirectional screw 21 and the guide shaft 24 are respectively one, and the pressing plate 14 is positioned above the flanging die holder 9.
Example 2
Referring to fig. 2 to 7, in this embodiment, a flanging device for processing a packing box according to embodiment 1 is further described, in this embodiment, a rectangular protrusion 91 is disposed on a lower surface of the flanging die holder 9, a rectangular groove 71 is disposed on an upper surface of the supporting plate 7, the rectangular groove 71 is adapted to the rectangular protrusion 91, the flanging die holder 9 can be directly placed on the flanging die holder 9 by the arrangement of the rectangular groove 71 and the rectangular protrusion 91, and replacement of the flanging die holder 9 is more convenient.
A plurality of support columns 5 are arranged below the support plate 7, spherical grooves 51 are formed in the upper surfaces of the support columns 5, annular grooves 72 are formed in the lower surface of the support plate 7, balls 8 are arranged between the annular grooves 72 and the spherical grooves 51, the upper ends of the balls 8 are movably connected with the annular grooves 72, and the lower ends of the balls 8 are movably connected with the spherical grooves 51; the lower ends of the supporting columns 5 are fixedly connected with the upper surface of the base 1, the central line of the annular groove 72 and the central line of the output shaft of the first motor 6 are arranged in a collinear mode, and the plurality of supporting columns 5 are distributed in a circumferential array relative to the central line of the annular groove 72.
The support 3 is arranged below the horizontal electric push rod 4, the support 3 is fixedly installed on the upper surface of the base 1, the top plate 18 is fixedly connected with the base 1 through the plurality of support columns 2, and other structures and connection modes of the embodiment are completely the same as those of the embodiment 1.
The working process of the embodiment of the invention is as follows: firstly, a packing box is placed on a flanging die holder 9, the position, needing to be folded, of the packing box is aligned to the edge of the flanging die holder 9, then a second motor 16 is started, a moving plate 23 starts to move, a pressing plate 14 moves to the position above the edge of the flanging die holder 9, then a vertical electric push rod 20 is started, the pressing plate 14 and an extrusion roller 11 slowly descend, the pressing plate 14 continuously descends after contacting with the edge of the packing box, a spring 153 starts to contract, the pressing plate 14 presses the edge of the packing box, and meanwhile, the extrusion roller 11 conducts primary flanging on the side edge of the packing box; then start horizontal electric putter 4, hem board 10 extrudees and accomplishes the hem the side of packing carton, starts vertical electric putter 20 and horizontal electric putter 4 again for clamp plate 14 and hem board 10 keep away from hem die holder 9, and a starter motor 6 makes hem die holder 9 rotate ninety degrees, and then carries out the hem to two other sides of packing carton. If different packing boxes are replaced, the edge folding die holder 9 is replaced when the edge folding positions are different.
The present invention has been described in detail with reference to the preferred embodiments thereof, and it should be understood that the invention is not limited thereto, but is intended to cover modifications, equivalents, and improvements within the spirit and scope of the present invention.
Claims (10)
1. A flanging device for processing a packing box comprises a base (1), a top plate (18), a first motor (6) and a second motor (16), and is characterized in that a flanging die holder (9) is arranged above the base (1), a horizontal electric push rod (4) is respectively arranged on the left side and the right side of the flanging die holder (9), a flanging plate (10) is connected to the telescopic end of the horizontal electric push rod (4), a supporting plate (7) is connected to the lower surface of the flanging die holder (9), an output shaft of the first motor (6) is connected with the central position of the lower surface of the supporting plate (7), the lower surface of the top plate (18) is connected with the second motor (16) and a fixing plate (19), a bidirectional screw rod (21) is coaxially and fixedly connected to the output shaft of the second motor (16), two movable plates (23) are arranged below the top plate (18), and threaded holes and through holes, the screw hole is connected with two-way screw rod (21) cooperation, and sliding fit is connected with guiding axle (24) on the through-hole, guiding axle (24) and fixed plate (19) fixed connection, and two-way screw rod (21) rotate with fixed plate (19) and are connected, the lower surface mounting of movable plate (23) has vertical electric putter (20), and the lower extreme of vertical electric putter (20) is connected with mounting panel (13), and the lower surface of mounting panel (13) is connected with lifter plate (12) and elasticity post (15), and the lower extreme of elasticity post (15) is connected with clamp plate (14), and the lower extreme of lifter plate (12) is connected with squeeze roll (11).
2. The hemming device for processing of packing boxes according to claim 1, wherein the number of the hemming plates (10), the moving plate (23), the vertical electric push rod (20), the mounting plate (13), the squeeze roller (11), the elastic column (15) and the pressing plate (14) is two and are all arranged in bilateral symmetry with respect to a symmetry plane of the hemming die holder (9), two lifting plates (12) are connected to a lower portion of one mounting plate (13), the two lifting plates (12) are arranged in bilateral symmetry with respect to the symmetry plane of the hemming die holder (9), and two ends of the squeeze roller (11) are rotatably connected to the lifting plates (12).
3. A hemming device for manufacturing a packing box according to claim 2 wherein two press plates (14) are provided between the two squeeze rollers (11), and a rubber pad (141) is bonded to a lower surface of the press plate (14).
4. The hemming device for processing of packing boxes according to claim 2, wherein the elastic column (15) is composed of a fixed column (151) and a telescopic column (156), the upper end of the fixed column (151) is fixedly connected with the mounting plate (13), a blind hole (152) is formed in the lower surface of the fixed column (151), a spring (153) is arranged at the upper end of the blind hole (152), a sliding plate (154) is connected in the blind hole (152) in a sliding fit manner, and the lower surface of the sliding plate (154) is connected with the upper end of the telescopic column (156).
5. A hemming device for processing a packing box according to claim 4 wherein the upper end of the spring (153) is fixedly connected to the top surface of the blind hole (152), the lower end of the spring (153) is fixedly connected to the sliding plate (154), the lower end of the blind hole (152) is connected to the baffle plate (155), the baffle plate (155) is provided with a through groove, the outer side surface of the telescopic post (156) is connected to the through groove in a sliding fit manner, and the lower end of the telescopic post (156) is fixedly connected to the pressing plate (14).
6. A creasing device for processing packages according to claim 1, characterised in that the creasing die holder (9) is provided with rectangular projections (91) on its lower surface and the support plate (7) is provided with rectangular recesses (71) on its upper surface, the rectangular recesses (71) being adapted to the rectangular projections (91).
7. A flanging device for processing packaging boxes according to claim 6, wherein a plurality of supporting columns (5) are arranged below the supporting plate (7), spherical grooves (51) are formed in the upper surfaces of the supporting columns (5), annular grooves (72) are formed in the lower surface of the supporting plate (7), balls (8) are arranged between the annular grooves (72) and the spherical grooves (51), the upper ends of the balls (8) are movably connected with the annular grooves (72), and the lower ends of the balls (8) are movably connected with the spherical grooves (51); the lower end of each supporting column (5) is fixedly connected with the upper surface of the base (1), the central line of the annular groove (72) and the central line of the output shaft of the motor I (6) are arranged in a collinear mode, and the supporting columns (5) are distributed in a circumferential array mode relative to the central line of the annular groove (72).
8. A hemming device for processing a packing box according to claim 1 wherein the number of the fixing plates (19) is three, the three fixing plates (19) are respectively provided at a left end, a middle portion and a right end of a guide shaft (24), and a center line of the guide shaft (24) and a center line of the bidirectional screw (21) are parallel to each other.
9. A flanging device for processing packaging boxes according to claim 8, wherein a bearing (22) is mounted on the fixing plate (19), an inner hole of the bearing (22) is fixedly connected with the side surface of the bidirectional screw (21), the bidirectional screw (21) and the guide shaft (24) are respectively provided with one, and the pressing plate (14) is positioned above the flanging die holder (9).
10. A flanging device for processing packaging boxes according to claim 1, characterized in that a support (3) is arranged below the horizontal electric push rod (4), the support (3) is fixedly arranged on the upper surface of the base (1), and the top plate (18) is fixedly connected with the base (1) through a plurality of pillars (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011042242.9A CN112208142A (en) | 2020-09-28 | 2020-09-28 | Edge folding device for processing packaging box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011042242.9A CN112208142A (en) | 2020-09-28 | 2020-09-28 | Edge folding device for processing packaging box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112208142A true CN112208142A (en) | 2021-01-12 |
Family
ID=74052218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011042242.9A Withdrawn CN112208142A (en) | 2020-09-28 | 2020-09-28 | Edge folding device for processing packaging box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112208142A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936976A (en) * | 2021-01-29 | 2021-06-11 | 徐遍红 | Method for manufacturing and forming paper packaging box |
| CN113911467A (en) * | 2021-10-26 | 2022-01-11 | 安徽中海绿建建材科技有限公司 | Sealing device of vacuum insulation board |
| CN114082608A (en) * | 2022-01-19 | 2022-02-25 | 江苏多来运纺织有限公司 | Carpet processing is with non-slip rubber coating device |
-
2020
- 2020-09-28 CN CN202011042242.9A patent/CN112208142A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936976A (en) * | 2021-01-29 | 2021-06-11 | 徐遍红 | Method for manufacturing and forming paper packaging box |
| CN113911467A (en) * | 2021-10-26 | 2022-01-11 | 安徽中海绿建建材科技有限公司 | Sealing device of vacuum insulation board |
| CN114082608A (en) * | 2022-01-19 | 2022-02-25 | 江苏多来运纺织有限公司 | Carpet processing is with non-slip rubber coating device |
| CN114082608B (en) * | 2022-01-19 | 2022-04-12 | 江苏多来运纺织有限公司 | Carpet processing is with non-slip rubber coating device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210112 |