CN210681327U - Film is carried and drawing mechanism - Google Patents
Film is carried and drawing mechanism Download PDFInfo
- Publication number
- CN210681327U CN210681327U CN201921578790.6U CN201921578790U CN210681327U CN 210681327 U CN210681327 U CN 210681327U CN 201921578790 U CN201921578790 U CN 201921578790U CN 210681327 U CN210681327 U CN 210681327U
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- driving
- film
- film conveying
- shaft
- driven
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- 238000003825 pressing Methods 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 5
- 238000012856 packing Methods 0.000 abstract description 22
- 239000012528 membrane Substances 0.000 abstract description 16
- 238000004806 packaging method and process Methods 0.000 description 24
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 229920006302 stretch film Polymers 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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- Basic Packing Technique (AREA)
Abstract
The utility model discloses a film is carried and drawing mechanism, which comprises a frame, slide in the frame and be provided with fore-stock and after-poppet, fore-stock and after-poppet drive through front drive mechanism and rear drive mechanism respectively, still are provided with the initiative simultaneously and send membrane mechanism and follow-up to send membrane mechanism on fore-stock and after-poppet, the initiative send membrane mechanism and send membrane drive mechanism to link to each other, the initiative send membrane mechanism and follow-up to send still to be connected with between the membrane mechanism main film belt and centre gripping and send the membrane area, the utility model discloses during the use, the film is sent membrane mechanism one side by follow-up to send and is entered into the owner and send membrane belt and centre gripping to send between the membrane belt, send the centre gripping in membrane belt and centre gripping to realize transporting of film through the owner, its position according to actual packing's needs arbitrary adjustment film in the packing region, guarantees that the film is in the best packing position all the time, satisfies.
Description
Technical Field
The utility model relates to a packaging machinery equipment technical field, concretely relates to film is carried and stretching mechanism.
Background
At present, various packaging machines such as a preservative film packaging machine, a stretch film packaging machine and the like are widely applied to different occasions such as various fresh food suppliers, a distribution center and the like, but a film can only be conveyed to a fixed position once in the actual use process of the packaging machine in the prior art, then the packaging machine packages articles, when the size of the packaged articles is greatly changed, the packaged articles are not necessarily in the center of the film, the film and the packaged articles are staggered, and further packaging errors are caused, so that the packaging machine in the prior art can only package one or two articles with fixed specifications frequently, the packaging effect of the articles with other specifications is poor, the packaging machine only adds new equipment to package the articles with different specifications in order to meet the packaging requirements of the articles with different specifications, the hardware cost of the packaging equipment is greatly improved, and the popularization of the packaging equipment is not facilitated.
SUMMERY OF THE UTILITY MODEL
For the packing size singleness that exists among the solution prior art, can not satisfy the defect that not unidimensional packing required, the utility model discloses a film is carried and stretching mechanism, the utility model discloses can require the interval between the adjustment each part according to actual packing, carry the film to best packing position simultaneously, not only improve the quality of packing, still satisfy different packing sizes's packing requirement simultaneously.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a film conveying and stretching mechanism comprises a rack, wherein a front support and a rear support are arranged on the rack in a sliding manner, and an upper clamping plate and a lower clamping frame for clamping a film are arranged on the front support and the rear support; the frame is provided with a front driving mechanism and a rear driving mechanism which are respectively used for driving the front support and the rear support to tension the film; the film conveying device is characterized in that a driving film conveying mechanism and a driven film conveying mechanism are respectively arranged on the two sides of the front support and the rear support, the driving film conveying mechanism is connected with the driven film conveying mechanism through a driving film conveying belt and a clamping film conveying belt, and a film conveying driving mechanism connected with the driving film conveying mechanism is arranged on the rack.
Preferably, a left sliding shaft and a right sliding shaft which are parallel to each other are arranged on the rack, sliding blocks are arranged on two sides of the front support and the rear support, and the sliding blocks are respectively connected with the left sliding shaft or the right sliding shaft in a sliding manner through linear motion bearings and are also connected with the corresponding front driving mechanism or the corresponding rear driving mechanism.
Preferably, the front driving mechanism comprises a first driving motor and a first driving shaft which are connected with each other, the first driving shaft is connected with the first driving motor through a transmission gear, a driving wheel is further arranged on the first driving shaft, connecting shafts are eccentrically arranged on the transmission gear and the driving wheel, a connecting rod is hinged to the connecting shafts, and the other end of the connecting rod is hinged to the sliding block.
Preferably, the rear driving mechanism comprises a second driving motor and a second driving shaft which are connected with each other, a driving wheel is arranged on the second driving shaft, a first driven wheel is arranged on the rack, a driving belt is connected between the driving wheel and the first driven wheel, and the driving belt is connected with the sliding block.
Preferably, the film feeding driving mechanism comprises a third driving motor and a driving edge shaft which are connected with each other, a sliding seat is arranged on the driving edge shaft in a sliding manner, a synchronizing wheel is fixedly arranged on the sliding seat, and a second driven wheel matched with the synchronizing wheel is further arranged on the driving film feeding mechanism; an inserting plate is fixedly arranged on the sliding block, and a slot matched with the inserting plate is formed in the sliding seat.
Preferably, a main film conveying wheel matched with each other is arranged between the driving film conveying mechanism and the driven film conveying mechanism, and a main film conveying belt is connected between the main film conveying wheels; film pressing wheels matched with each other are further arranged on the driving film conveying mechanism and the driven film conveying mechanism, and a clamping film conveying belt is connected between the film pressing wheels.
Preferably, the driven film feeding mechanism is also hinged with a side film pressing mechanism, a plurality of side film pressing wheels are rotatably arranged on the side film pressing mechanism, and side film pressing belts are connected between the side film pressing wheels; still be provided with driving electromagnet in the frame, driving electromagnet passes through the telescopic link and links to each other with side squeeze film mechanism, be provided with reset spring on the telescopic link.
Preferably, the driven film feeding mechanism is also provided with a film feeding transition roller.
Preferably, the two sides of the rack are provided with the correlation photoelectric sensors which are matched with each other, and the rack is also provided with a front clamping mechanism detection sensor and a rear clamping mechanism detection sensor.
Preferably, the frame is further provided with a counting mechanism, and the counting mechanism comprises a mounting frame and a photoelectric sensor.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model comprises a frame, a front bracket and a rear bracket are arranged on the frame in a sliding way, the front bracket and the rear bracket are respectively driven by a front driving mechanism and a rear driving mechanism to move in opposite directions or in opposite directions, meanwhile, a driving film feeding mechanism and a driven film feeding mechanism are arranged on the front bracket and the rear bracket, the driving film feeding mechanism is connected with a film feeding transmission mechanism, meanwhile, a main film conveying belt and a clamping film conveying belt are connected between the driving film conveying mechanism and the driven film conveying mechanism, the film enters between the main film conveying belt and the clamping film conveying belt from one side of the driven film conveying mechanism and rapidly moves to the driving film conveying mechanism through the clamping action of the main film conveying belt and the clamping film conveying belt, the position of the film can be adjusted randomly in the packaging area according to the actual packaging requirement, so that the film is always in the optimal packaging position, and the packaging requirements of different sizes are met; simultaneously the utility model discloses the tensioning degree of still coming the quick adjustment film through the mutual motion of fore-stock and after-poppet to guarantee that a large amount of rugosities can not appear in the film after the packing, improve the quality of packing.
2. The utility model discloses a driven film feeding mechanism goes up still to articulate there is side press mold mechanism, and side press mold mechanism realizes the back and forth movement through driving electromagnet, through the film that side press mold mechanism and driven cooperation centre gripping that send film mechanism were cut, realizes quick feeding after a packing is accomplished to improve the degree of automation of packing speed and packing.
3. The utility model discloses a still be provided with on the driven film feeding mechanism and send membrane transition roller, provide support and protection to the film, avoid the film to cut the rubbing and damage with equipment emergence in the motion process, lead to the film to be torn even, improve the quality of packing.
4. The two sides of the frame of the utility model are provided with the correlation photoelectric sensors which are mutually matched, the detection is carried out on the working area, and the machine is stopped in time when foreign objects enter the packaging area, thereby improving the safety of the operation of the equipment; meanwhile, a front support detection sensor and a rear support detection sensor are further arranged on the rack, so that the positions of the front support and the rear support are detected, and the front support and the rear support are guaranteed to move to a specified working position, and therefore the packaging quality and the packaging precision are improved.
5. The utility model discloses a still be provided with counting mechanism in the frame, counting mechanism includes mounting bracket and photoelectric sensor, and the convenience is measured the length of film, reduces the quantity of film when guaranteeing packing quality, saves the resource.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
fig. 3 is a top view of the present invention;
fig. 4 is a side view of the present invention;
fig. 5 is a schematic structural view of the slide carriage of the present invention;
fig. 6 is a schematic view of the counting mechanism of the present invention.
Reference numerals: 1. a frame, 2, a front bracket, 3, a rear bracket, 4, an upper clamping plate, 5, a lower clamping bracket, 6, a front driving mechanism, 7, a rear driving mechanism, 8, a driving film feeding mechanism, 9, a driven film feeding mechanism, 10, a main film feeding belt, 11, a clamping film feeding belt, 12, a film feeding driving mechanism, 13, a left sliding shaft, 14, a right sliding shaft, 15, a sliding block, 16, a linear motion bearing, 17, a main film feeding wheel, 18, a film pressing wheel, 19, a side film pressing mechanism, 20, a side film pressing wheel, 21, a side film pressing belt, 22, a driving electromagnet, 23, a telescopic rod, 24, a film feeding transition roller, 25, a correlation photoelectric sensor, 26, a front bracket detection sensor, 27, a rear bracket detection sensor, 28, a mounting bracket, 29, a photoelectric sensor, 30, a clamping plate, 61, a first driving motor, 62, a first driving shaft, 63, a transmission gear, 64 and a driving wheel, 65. connecting shaft, 66, connecting rod, 71, second driving motor, 72, second driving shaft, 73, driving wheel, 74, first driven wheel, 75, driving belt, 1201, third driving motor, 1202, driving prism, 1203, sliding seat, 1204, synchronizing wheel, 1205, second driven wheel, 1206, inserting plate, 1207 and inserting groove.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Embodiment mode 1
As a basic implementation mode of the utility model, the embodiment discloses a film conveying and stretching mechanism, the specific structure is shown in figures 1 to 5, and the film conveying and stretching mechanism comprises a frame 1, a left sliding shaft 13 and a right sliding shaft 14 which are parallel to each other are arranged on the frame 1, a front bracket 2 and a rear bracket 3 are also arranged on the frame 1, sliders 15 are arranged on the left side and the right side of the front bracket 2 and the rear bracket 3 respectively, the sliders 15 are respectively connected with the left sliding shaft 13 and the right sliding shaft 14 in a sliding way through linear motion bearings 16, an upper clamping plate 4 and a lower clamping bracket 5 for clamping films are arranged on the front bracket 2 and the rear bracket 3 respectively, the lower clamping bracket 5 is fixedly arranged, the upper clamping plate 4 is hinged, a driving electromagnet and a driving lever are arranged on the front bracket 2 and the rear bracket 3, a push plate is arranged on the upper clamping plate 4, the driving lever is contacted with the push plate, and the other end of the driving electromagnet is hinged with the, thereby controlling the opening and closing degree of the upper clamping plate 4 through the poking rod;
meanwhile, a front driving mechanism 6 and a rear driving mechanism 7 are further arranged on the rack 1, the front driving mechanism 6 comprises a first driving motor 61 and a first driving shaft 62, an output shaft of the first driving motor 61 is connected with the first driving shaft 62 through a transmission gear 63, a driving wheel 64 is further arranged on the first driving shaft 62, connecting shafts 65 are eccentrically arranged on the driving wheel 64 and the transmission gear 63, connecting rods 66 are hinged on the connecting shafts 65, and the sliding block 15 connected with the front support 2 is hinged with the other ends of the connecting rods 66.
The rear driving mechanism 7 comprises a second driving motor 71 and a second driving shaft 72, the second driving motor 71 is connected with the second driving shaft 72 through a transmission gear, driving wheels 73 are arranged at two ends of the second driving shaft 72, corresponding first driven wheels 74 are arranged at two sides of the rack 1, the driving wheels 73 are connected with the first driven wheels 74 through driving belts 75, the driving belts 75 adopt synchronous belts, clamping plates 30 matched with the clamping teeth of the driving belts are fixedly arranged at the bottoms of the sliding blocks 15 connected with the rear support 3, and the driving belts 75 are fixedly connected with the sliding blocks 15 through mutual matching of the clamping plates 30 and the clamping teeth, so that the rear support 3 is driven to slide.
Further, a driving film feeding mechanism 8 and a driven film feeding mechanism 9 are respectively arranged on two sides of the front support 2 and the rear support 3, a driving film feeding wheel 17 which is matched with the driving film feeding mechanism 8 and the driven film feeding mechanism 9 is arranged on the driving film feeding mechanism 8 and the driven film feeding mechanism 9, guide wheels are further arranged at two ends of the lower clamping frame 5, a driving film feeding belt is sleeved between the driving film feeding wheels, and the driving film feeding belt passes through the guide wheels; meanwhile, film pressing wheels 18 which are matched with each other are also arranged on the driving film feeding mechanism 8 and the driven film feeding mechanism 9, a clamping film feeding belt 11 is sleeved between the film pressing wheels 18, and the film is conveyed to any position of a packaging area through the clamping action of the clamping film feeding belt 11 and the main film feeding belt 10; meanwhile, the film pressing wheel 18 and the film feeding wheel 17 of the main film feeding mechanism 8 are connected through a transmission gear;
meanwhile, a film feeding driving mechanism 12 is further arranged on the machine frame 1, the film feeding driving mechanism 12 comprises a third driving motor 1201 and a driving prism 1202, the third driving motor 1201 is connected with the driving prism 1202 through a synchronous belt, a sliding seat 1203 is slidably arranged on the driving prism 1202, a synchronous wheel 1204 is fixedly arranged on the sliding seat 1203, the synchronous wheel 1204 is connected with a second driven wheel 1205 through the synchronous belt, the second driven wheel 1205 and a main film feeding wheel 17 on the driving film feeding mechanism 8 are fixedly arranged on the same connecting shaft, and therefore the power connection between the film feeding driving mechanism 12 and the driving film feeding mechanism 8 is achieved; and a plug board 1206 is fixedly arranged on the sliding block 15 positioned on one side of the active film feeding mechanism 8, a slot 1207 matched with the plug board 1206 is arranged on the sliding seat 1203, and the plug board 1206 is inserted into the slot 1207, so that the sliding seat 1203 is driven to keep synchronous motion with the front support 2 or the rear support 3 on the driving prism 1202 by shifting of the plug board 1206.
Embodiment mode 2
As a preferred embodiment of the present invention, the present invention discloses a film conveying and stretching mechanism, the specific structure of which is shown in fig. 1 to 6, and the film conveying and stretching mechanism comprises a front bracket 2 and a rear bracket 3, wherein both sides of the front bracket 2 and the rear bracket 3 are respectively provided with a driving film conveying mechanism 8 and a driven film conveying mechanism 9, the driven film conveying mechanism 9 is further hinged with a side film pressing mechanism 19 and a counting mechanism, the side film pressing mechanism 19 comprises at least two side film pressing wheels 20, a side film pressing belt 21 is arranged between the side film pressing wheels 20, and the side film pressing belt 21 is matched with the driving film conveying belt 10 to clamp a film; meanwhile, a driving electromagnet 22 is further arranged on the lower clamping frame 5, and the driving electromagnet 22 is connected with the side film pressing mechanism 19 through a hinged telescopic rod 23.
The counting mechanism comprises an installation frame 28 fixedly arranged on the driven film conveying mechanism, and a photoelectric sensor 29 used for measuring the length of the film is arranged on the installation frame 28.
Further, a film feeding transition roller 24 is further arranged on the driven film feeding mechanism 9, meanwhile, opposite photoelectric sensors 25 corresponding to each other are arranged on two sides of the rack 1, a front bracket detection sensor 26 for detecting the position of the front bracket 5 and at least 3 rear bracket detection sensors 27 for detecting the position of the rear bracket 3 are further arranged on the rack 1, and the front bracket detection sensor 26 and the rear bracket detection sensors 27 both adopt photoelectric sensors.
When the utility model is used, the rear support is moved to a corresponding position through the rear driving mechanism, then the film enters from one side of the driven film conveying mechanism on the front support and the rear support and enters between the clamping film conveying belt and the main film conveying belt, and is clamped by the clamping film conveying belt and the main film conveying belt; starting a driving motor of the film feeding driving mechanism, driving a driving wheel to rotate by a prism shaft in the rotating process, further driving a main film feeding belt and a clamping film feeding belt to slide, rapidly transferring the films clamped by the main film feeding belt and the clamping film feeding belt to a packaging station, simultaneously measuring the length of the input films by a counting mechanism, and cutting off the films when the lengths of the films meet the requirement; after the film is conveyed to a packaging station, the rear support is driven to move through the rear driving mechanism again to stretch the film, so that the film is in a tensioning state, a large amount of wrinkles of the packaged film are avoided, and the packaging quality is improved; compared with the prior art, the utility model discloses a film is carried to the centre gripping that mainly send membrane area and centre gripping to send the membrane area, and because mainly send membrane area and centre gripping to send the membrane area to exist with whole packing operation district, consequently it can carry the optional position in packing operation district with the film, and its packing position can carry out nimble adjustment, consequently its different packing requirements that can satisfy not unidimensional article have improved the packing ability of equipment greatly.
Claims (10)
1. The utility model provides a film is carried and stretching mechanism, includes frame (1), its characterized in that: a front support (2) and a rear support (3) are arranged on the rack (1) in a sliding manner, and an upper clamping plate (4) and a lower clamping frame (5) for clamping a film are arranged on the front support (2) and the rear support (3); the frame (1) is provided with a front driving mechanism (6) and a rear driving mechanism (7) which are respectively used for driving the front support (2) and the rear support (3) to tension the film; the film conveying device is characterized in that a driving film conveying mechanism (8) and a driven film conveying mechanism (9) are respectively arranged on the two sides of the front support (2) and the rear support (3), the driving film conveying mechanism (8) and the driven film conveying mechanism (9) are connected through a main film conveying belt (10) and a clamping film conveying belt (11), and a film conveying driving mechanism (12) connected with the driving film conveying mechanism (8) is arranged on the rack (1).
2. The film conveying and stretching mechanism of claim 1, wherein: the mechanism is characterized in that a left sliding shaft (13) and a right sliding shaft (14) which are parallel to each other are arranged on the rack (1), sliding blocks (15) are arranged on two sides of the front support (2) and the rear support (3), and the sliding blocks (15) are respectively connected with the left sliding shaft (13) or the right sliding shaft (14) in a sliding manner through linear motion bearings (16) and are also connected with a corresponding front driving mechanism (6) or a corresponding rear driving mechanism (7).
3. The film conveying and stretching mechanism according to claim 2, wherein: the front driving mechanism (6) comprises a first driving motor (61) and a first driving shaft (62) which are connected with each other, the first driving shaft (62) is connected with the first driving motor (61) through a transmission gear (63), a driving wheel (64) is further arranged on the first driving shaft (62), a connecting shaft (65) is eccentrically arranged on the transmission gear (63) and the driving wheel (64), a connecting rod (66) is hinged to the connecting shaft (65), and the other end of the connecting rod (66) is hinged to the sliding block (15).
4. The film conveying and stretching mechanism according to claim 2, wherein: the rear driving mechanism (7) comprises a second driving motor (71) and a second driving shaft (72) which are connected with each other, a driving wheel (73) is arranged on the second driving shaft (72), a first driven wheel (74) is arranged on the rack (1), a driving belt (75) is connected between the driving wheel (73) and the first driven wheel (74), and the driving belt (75) is connected with the sliding block (15).
5. The film conveying and stretching mechanism according to claim 2, wherein: the film feeding driving mechanism (12) comprises a third driving motor (1201) and a driving prismatic shaft (1202) which are connected with each other, a sliding seat (1203) is arranged on the driving prismatic shaft (1202) in a sliding mode, a synchronizing wheel (1204) is fixedly arranged on the sliding seat (1203), and a second driven wheel (1205) matched with the synchronizing wheel (1204) is further arranged on the driving film feeding mechanism (8); an inserting plate (1206) is fixedly arranged on the sliding block (15), and a slot (1207) matched with the inserting plate (1206) is formed in the sliding seat (1203).
6. The film conveying and stretching mechanism of claim 1, wherein: a main film conveying wheel (17) which is matched with each other is arranged between the driving film conveying mechanism (8) and the driven film conveying mechanism (9), and a main film conveying belt (10) is connected between the main film conveying wheels (17); film pressing wheels (18) matched with each other are further arranged on the driving film feeding mechanism (8) and the driven film feeding mechanism (9), and a clamping film feeding belt (11) is connected between the film pressing wheels (18).
7. The film conveying and stretching mechanism of claim 1, wherein: the driven film conveying mechanism (9) is also hinged with a side film pressing mechanism (19), the side film pressing mechanism (19) is rotatably provided with a plurality of side film pressing wheels (20), and side film pressing belts (21) are connected between the side film pressing wheels (20); still be provided with driving electromagnet (22) on frame (1), driving electromagnet (22) link to each other with side press mold mechanism (19) through telescopic link (23).
8. The film conveying and stretching mechanism of claim 1, wherein: and the driven film feeding mechanism (9) is also provided with a film feeding transition roller (24).
9. The film conveying and stretching mechanism of claim 1, wherein: the two sides of the rack (1) are provided with the correlation photoelectric sensors (25) which are matched with each other, and meanwhile, the rack (1) is also provided with a front clamping mechanism detection sensor (26) and a rear clamping mechanism detection sensor (27).
10. The film conveying and stretching mechanism of claim 1, wherein: still be provided with on frame (1) and be used for counting mechanism, counting mechanism includes mounting bracket (28) and photoelectric sensor (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921578790.6U CN210681327U (en) | 2019-09-23 | 2019-09-23 | Film is carried and drawing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921578790.6U CN210681327U (en) | 2019-09-23 | 2019-09-23 | Film is carried and drawing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210681327U true CN210681327U (en) | 2020-06-05 |
Family
ID=70892289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921578790.6U Expired - Fee Related CN210681327U (en) | 2019-09-23 | 2019-09-23 | Film is carried and drawing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210681327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717463A (en) * | 2020-06-28 | 2020-09-29 | 燕山大学 | Anti-rust paper stretching device in automatic packaging machine |
-
2019
- 2019-09-23 CN CN201921578790.6U patent/CN210681327U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717463A (en) * | 2020-06-28 | 2020-09-29 | 燕山大学 | Anti-rust paper stretching device in automatic packaging machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 |