CN115524226A - Textile fabric tensile property testing device - Google Patents
Textile fabric tensile property testing device Download PDFInfo
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- CN115524226A CN115524226A CN202211405985.7A CN202211405985A CN115524226A CN 115524226 A CN115524226 A CN 115524226A CN 202211405985 A CN202211405985 A CN 202211405985A CN 115524226 A CN115524226 A CN 115524226A
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- fixedly connected
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- textile fabric
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- 239000004744 fabric Substances 0.000 title claims abstract description 65
- 239000004753 textile Substances 0.000 title claims abstract description 47
- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a textile fabric tensile property testing device which comprises a box body, wherein a baffle is fixedly connected to the inner wall of the box body, second rods are symmetrically, penetratingly and rotatably connected to the inner wall of the baffle, a second gear is fixedly connected to the side wall of each second rod, a circular tube is symmetrically and fixedly connected to the bottom of the baffle, a sector gear is fixedly connected to the side wall of each circular tube, the second rods are penetratingly and rotatably connected to the inside of the circular tube, a swing rod is fixedly connected to the side wall of each second rod, a first rod is rotatably connected to the side wall of each swing rod, a first gear is fixedly connected to the side wall of each first rod, a stretching rod is fixedly connected to the side wall of each first rod, a clamping part is fixedly connected to one end of each stretching rod, and sliding grooves are symmetrically formed in the bottom wall of the baffle. According to the invention, through arranging a plurality of gears, swinging rods, clamping components and other structures, two ends of the textile fabric can be clamped by two stretching rods respectively, and then the textile fabric is stretched reversely, so that the stretching performance of the textile fabric is detected.
Description
Technical Field
The invention relates to the technical field of fabric performance detection, in particular to a textile fabric tensile property testing device.
Background
Textile fabrics are commonly used materials in decorative materials. Comprises various fabrics such as chemical fiber carpets, non-woven wallcoverings, linen, nylon fabrics, colored rubberized fabrics, flannel and the like. Cloth plays a considerable role in decorative displays, often a major non-negligible effort throughout the sales space. A large amount of cloth is used for wall surface decoration, partition and background treatment, and a good commercial space display style can be formed. The weaving mode can be divided into: woven fabric and knitted fabric. The processing technology can be divided into: grey cloth, bleached cloth, dyed cloth, printed cloth, colored woven cloth, mixed process cloth (such as printing on the colored woven cloth, composite cloth, flocked cloth, leather-like felt cloth) and the like. It can also be divided into the following raw materials: cotton, chemical, hemp, mao Fangbu, silk, and blended fabrics, among others.
In the process of textile fabric production and processing, various performances of the textile fabric are often required to be detected, at present, detection equipment for the textile fabric is often only capable of performing linear tensile test on the textile fabric to test the tensile strength of the textile fabric, and when the textile fabric is subjected to impact test and tear-resistant impact performance, the textile fabric is often required to be stretched and bent to form different curvatures, so that the textile fabric with different bending degrees is subjected to tear-resistant impact performance test, and the detection efficiency is low.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a textile fabric tensile property testing device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a textile fabric tensile property testing arrangement, includes the box, box inner wall fixedly connected with baffle, baffle inner wall symmetry runs through to rotate and is connected with the second pole, every the equal fixedly connected with second gear of second pole lateral wall, baffle bottom symmetry fixedly connected with pipe, pipe lateral wall fixedly connected with sector gear, the second pole runs through to rotate to be connected inside the pipe, second pole lateral wall fixedly connected with swinging arms, the swinging arms lateral wall rotates and is connected with first pole, the lateral wall fixedly connected with first gear of first pole, first pole lateral wall fixedly connected with tensile pole, the one end fixedly connected with clamping part of tensile pole, the spout has been seted up to baffle diapire symmetry, every the inside equal sliding connection in spout has the slider, rotate on the slider and be connected with the push rod, the other end and the first pole of push rod rotate and connect, spout inner wall fixedly connected with flexible gasbag, the other end and the slider fixed connection of flexible gasbag, box bottom inner wall symmetry fixedly connected with curved block, be equipped with on the baffle and carry out driven power unit to the second gear.
Furthermore, power unit includes that the symmetry rotates the third pole of connecting in the baffle bottom, every the equal fixedly connected with third gear of third pole lateral wall, baffle roof fixedly connected with motor, the output fixedly connected with actuating lever of motor, the one end of actuating lever runs through baffle inner wall back fixedly connected with horizontal pole, the lateral wall that actuating lever one end was kept away from to the horizontal pole rotates and is connected with the rack, one of them third pole lateral wall rotates and is connected with the U shaped plate, rack sliding connection is inside the U shaped plate.
Further, the rack is in meshed connection with a third gear, the third gear is in meshed connection with a second gear, and the sector gear is in meshed connection with the first gear.
Further, the curved block lateral wall is equipped with the friction disc, a plurality of smooth chambeies have been seted up to the curved block inner wall, every the equal sealing sliding connection in smooth intracavity portion has the piston, the one end fixedly connected with striking piece of piston, striking piece runs through sliding connection at smooth intracavity wall.
Furthermore, the inner wall of the sliding cavity is fixedly connected with a spring, and the other end of the spring is fixedly connected with the piston.
Further, the inner wall of the sliding cavity is fixedly connected with a one-way air inlet pipe and a one-way air outlet pipe in a penetrating mode, one end, far away from the sliding cavity, of the one-way air inlet pipe is fixedly communicated with a corresponding telescopic air bag, and a pressure release valve is arranged inside the one-way air outlet pipe.
Furthermore, the two third gears are meshed with each other and connected, and a one-way air inlet is formed in the inner wall of the telescopic air bag.
The invention has the following advantages:
1. by arranging a plurality of gears, swinging rods, clamping components and other structures, two ends of the textile fabric can be clamped by two stretching rods respectively, and then the textile fabric is stretched reversely, so that the stretching performance of the textile fabric is detected;
2. in the process, the stretching motion track of the clamping part at one end of the stretching rod is consistent with the side wall track of the curved block, the clamping part can enable the textile fabric to slide against the side wall of the curved block in the stretching process, and the friction plate is arranged on the side wall of the curved block, so that the friction performance of the textile fabric can be detected by the friction plate;
3. at above-mentioned in-process, first pole still can drive the slider at the inside extrusion gasbag that slides of spout through the push rod, the inside suction gas of gasbag that will stretch out and draw back extrudees the sealed slip of the inside promotion piston in a plurality of sliding chambers, and then the piston drives the impact block and strikes the textile fabric after the extension, the side because of the curved block is the curve structure that the camber is different, so the tensile crooked degree of each part of textile fabric is inconsistent, so when receiving the impact block striking, the textile fabric's that the tensile crooked degree of each part of detection that can be better is different tear striking ability.
Drawings
Fig. 1 is a schematic structural diagram of a textile fabric tensile property testing device provided by the invention;
FIG. 2 is a schematic connection diagram of a baffle bottom structure in the device for testing the tensile property of the textile fabric provided by the invention;
fig. 3 is a schematic structural diagram of a curved block and a friction plate in the device for testing the tensile property of the textile fabric provided by the invention.
In the figure: 1 box, 2 baffle plates, 3 motor, 4 first rod, 5 first gear, 6 stretching rod, 7 clamping part, 8 second rod, 9 second gear, 10 sector gear, 11 runner, 12 push rod, 13 slide block, 14 telescopic air bag, 15 third rod, 16 third gear, 17 curved block, 18 friction plate, 19 sliding cavity, 20 piston, 21 impact block, 22 spring, 23 one-way air inlet pipe, 24 one-way air outlet pipe, 25 driving rod, 26 cross rod, 27 rack, 28U-shaped plate and 29 swinging rod.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Referring to fig. 1-3, a textile fabric tensile property testing device, including box 1, box 1 inner wall fixedly connected with baffle 2, the textile fabric that needs to carry out the performance detection can be placed on the upper portion of baffle 2, baffle 2 inner wall symmetry runs through and rotates and is connected with second pole 8, the equal fixedly connected with second gear 9 of every 8 lateral walls of second pole, baffle 2 bottom symmetry fixedly connected with pipe, pipe lateral wall fixedly connected with sector gear 10, second pole 8 runs through and rotates inside the pipe, second pole 8 lateral wall fixedly connected with swinging arms 29, swinging arms 29 lateral wall rotates and is connected with first pole 4, the lateral wall fixedly connected with first gear 5 of first pole 4, first pole 4 lateral wall fixedly connected with tensile pole 6, the one end fixedly connected with clamping part 7 of tensile pole 6, clamping part 7 is prior art, can carry out the centre gripping to textile fabric's one end, do not describe here, baffle 2 diapire symmetry has seted up spout 11, the equal sliding connection has slider 13 inside each spout 11, rotate and be connected with push rod 12 on the slider 13, the other end of push rod 12 and first pole 4 rotate and connect, inner wall fixedly connected with the gasbag 14, the slider 14, the flexible drive the slider of gasbag can be produced by flexible fixed material of flexible push rod 14 or the flexible push rod 14, and the flexible baffle 2 outer wall of the flexible drive block of the flexible push rod, and the flexible drive the flexible push rod 17, and the flexible push rod can be connected with the outside air bag.
Power unit is including the symmetry running through the third pole 15 of rotation connection in the bottom of baffle 2, the equal fixedly connected with third gear 16 of every third pole 15 lateral wall, 2 roof fixedly connected with motor 3 of baffle, motor 3's output end fixedly connected with actuating lever 25, fixedly connected with horizontal pole 26 behind the baffle 2 inner wall is run through to the one end of actuating lever 25, the lateral wall that actuating lever 25 one end was kept away from to horizontal pole 26 rotates and is connected with rack 27, one of them third pole 15 lateral wall rotates and is connected with U-shaped plate 28, rack 27 sliding connection is inside U-shaped plate 28, motor 3's output drives actuating lever 25 and rotates, and then actuating lever 25 drives horizontal pole 26 and rotates, horizontal pole 26 drives the motion of rack 27, connect because of rack 27 and the meshing of third gear 16, and U-shaped plate 28 carries on spacingly to rack 27, make rack 27 remain the meshing with third gear 16 all the time, and drive third gear 16 and form positive and negative reciprocal certain angle of rotation.
The rack 27 is meshed with the third gear 16, the third gear 16 is meshed with the second gear 9, the sector gear 10 is meshed with the first gear 5, the rack 27 drives the third gear 16 to rotate in a forward and reverse reciprocating mode, and in the process that the first gear 5 moves along with the swinging rod 29, the first gear 5 is meshed with the sector gear 10 and the sector gear 10 is in a static state, so that the first gear 5 rotates, and the first gear 5 drives the first rod 4 to rotate.
Curved shape piece 17 lateral wall is equipped with friction disc 18, and a plurality of smooth chambeies 19 have been seted up to curved shape piece 17 inner wall, and every smooth 19 inside equal sealing sliding connection in chamber has piston 20, and piston 20's one end fixedly connected with striking piece 21, striking piece 21 run through sliding connection at smooth 19 inner walls in chamber, and the setting of a plurality of smooth chambeies 19 corresponds the lateral wall of the different curvatures of curved shape piece 17.
The inner wall of the sliding cavity 19 is fixedly connected with a spring 22, and the other end of the spring 22 is fixedly connected with the piston 20.
The inner wall of the sliding cavity 19 is fixedly connected with a one-way air inlet pipe 23 and a one-way air outlet pipe 24 in a penetrating mode, one end, far away from the sliding cavity 19, of the one-way air inlet pipe 23 is fixedly communicated with one corresponding telescopic airbag 14, a pressure release valve is arranged inside the one-way air outlet pipe 24, the one-way air inlet pipe 23 only allows air inside the telescopic airbag 14 to enter the sliding cavity 19, and the one-way air outlet pipe 24 only allows air inside the sliding cavity 19 to be discharged to the outside.
The two third gears 16 are meshed with each other, and the inner wall of the telescopic air bag 14 is provided with a one-way air inlet which only allows outside air to be pumped into the telescopic air bag 14.
In the invention, two clamping parts 7 are used for respectively clamping two ends of the textile fabric, the clamping parts 7 can adopt various clamps or manipulators in the prior art, then the motor 3 is turned on, the output end of the motor 3 drives the driving rod 25 to rotate, further the driving rod 25 drives the cross rod 26 to rotate, the cross rod 26 drives the rack 27 to move, the rack 27 is meshed with the third gear 16 and the U-shaped plate 28 limits the rack 27, so that the rack 27 is always meshed with the third gear 16, the rack 27 drives the third gear 16 meshed and connected with the rack to rotate in a positive and negative reciprocating mode, further the third gear 16 drives the second gear 9 meshed and connected with the third gear to rotate in a positive and negative reciprocating mode, and the other third gear 16 drives the other second gear 9 to rotate, and the rotating directions are opposite.
That is, the two second gears 9 are opposite in rotation direction, when the second gear 9 rotates, the second gear 9 drives the oscillating rod 29 to synchronously rotate through the second rod 8, the sector gear 10 is in a static state, the first gear 5 is meshed with the sector gear 10, then the oscillating rod 29 drives the first gear 5 to rotate in the moving process, and then the first gear 5 drives the first rod 4 to rotate, on one hand, the first rod 4 drives the stretching rod 6 to rotate, and the circular shape of the stretching rod 6 is continuously changed, so that the textile fabric clamped by the clamping part 7 at one end of the stretching rod 6 is subjected to curve stretching, the stretching motion track of the clamping part 7 at one end of the stretching rod 6 is consistent with the track of the side wall of the curved block 17, and then the clamping part 7 slides the textile fabric against the side wall of the curved block 17 in the stretching process, and because the side wall of the curved block 17 is provided with the friction plate 18, then the textile fabric 18 can be subjected to friction performance detection, and the stretching performance of the textile fabric is simultaneously detected.
On the other hand, first pole 4 will drive push rod 12 and rotate, push rod 12 then can drive slider 13 and slide in spout 11 is inside, and then slider 13 extrudes flexible gasbag 14, extrude the inside gas of the inside suction of flexible gasbag 14 inside a plurality of smooth chambeies 19, compressed gas enters into smooth intracavity 19 inside back and will promote piston 20 to slide a section distance sealedly, and then piston 20 drives striking block 21 and strikes the textile fabric after the stretching, be the curve structure of camber difference because of curved block 17's side, so the tensile crooked degree of each part of textile fabric is inconsistent, so when receiving striking block 21 striking, the anti striking ability of the different textile fabric of the tensile crooked degree of each part of detection that can be better, follow-up when the inside atmospheric pressure of smooth chamber 19 is too high, compressed gas will be discharged through the relief valve, then carry out next round of detection again.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The textile fabric tensile property testing device comprises a box body (1) and is characterized in that a baffle (2) is fixedly connected to the inner wall of the box body (1), a second rod (8) is symmetrically, rotatably and penetratively connected to the inner wall of the baffle (2), a second gear (9) is fixedly connected to the side wall of the second rod (8), a round pipe is symmetrically and fixedly connected to the bottom of the baffle (2), a sector gear (10) is fixedly connected to the side wall of the round pipe, the second rod (8) is rotatably and penetratively connected to the inside of the round pipe, a swinging rod (29) is fixedly connected to the side wall of the second rod (8), a first rod (4) is rotatably connected to the side wall of the swinging rod (29), a first gear (5) is fixedly connected to the side wall of the first rod (4), a stretching rod (6) is fixedly connected to the side wall of the stretching rod (6), a clamping part (7) is fixedly connected to one end of the stretching rod (6), sliding grooves (11) are symmetrically formed in the bottom wall of the baffle (2), a sliding block (13) is slidably connected to the inside of each sliding groove (11), a push rod (12) is rotatably connected to the other end of an air bag, and the sliding groove (14) is connected to the sliding block (14), the inner wall of the bottom of the box body (1) is symmetrically and fixedly connected with a curved block (17), and a power mechanism for driving the second gear (9) is arranged on the baffle (2).
2. The textile fabric tensile property testing device according to claim 1, wherein the power mechanism comprises third rods (15) symmetrically and rotatably connected to the bottom of the baffle (2), each third rod (15) has a side wall fixedly connected to a third gear (16), the top wall of the baffle (2) is fixedly connected to a motor (3), an output end of the motor (3) is fixedly connected to a driving rod (25), one end of the driving rod (25) penetrates through the inner wall of the baffle (2) and is fixedly connected to a cross rod (26), the side wall of the cross rod (26) far away from one end of the driving rod (25) is rotatably connected to a rack (27), one side wall of the third rod (15) is rotatably connected to a U-shaped plate (28), and the rack (27) is slidably connected to the inside of the U-shaped plate (28).
3. The textile fabric tensile property testing device according to claim 2, wherein the rack (27) is in meshed connection with a third gear (16), the third gear (16) is in meshed connection with a second gear (9), and the sector gear (10) is in meshed connection with the first gear (5).
4. The textile fabric tensile property testing device according to claim 1, wherein a friction plate (18) is arranged on the side wall of the curved block (17), a plurality of sliding cavities (19) are formed in the inner wall of the curved block (17), a piston (20) is hermetically and slidably connected inside each sliding cavity (19), an impact block (21) is fixedly connected to one end of each piston (20), and the impact block (21) is slidably connected to the inner wall of each sliding cavity (19) in a penetrating manner.
5. The textile fabric tensile property testing device according to claim 4, wherein a spring (22) is fixedly connected to the inner wall of the sliding cavity (19), and the other end of the spring (22) is fixedly connected with the piston (20).
6. The textile fabric tensile property testing device according to claim 5, wherein a one-way air inlet pipe (23) and a one-way air outlet pipe (24) are fixedly connected to the inner wall of the sliding cavity (19) in a penetrating manner, one end, far away from the sliding cavity (19), of the one-way air inlet pipe (23) is fixedly communicated with a corresponding telescopic air bag (14), and a pressure release valve is arranged inside the one-way air outlet pipe (24).
7. The textile fabric tensile property testing device of claim 2, wherein the two third gears (16) are meshed with each other, and the inner wall of the telescopic air bag (14) is provided with a one-way air inlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211405985.7A CN115524226A (en) | 2022-11-10 | 2022-11-10 | Textile fabric tensile property testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211405985.7A CN115524226A (en) | 2022-11-10 | 2022-11-10 | Textile fabric tensile property testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115524226A true CN115524226A (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211405985.7A Pending CN115524226A (en) | 2022-11-10 | 2022-11-10 | Textile fabric tensile property testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115524226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115979797A (en) * | 2023-02-14 | 2023-04-18 | 江苏千瑞纺织科技有限公司 | Textile fabric strength detection device |
| CN115979819A (en) * | 2023-02-16 | 2023-04-18 | 江苏联发高端纺织技术研究院 | Stretching device for textile fabric elasticity test |
-
2022
- 2022-11-10 CN CN202211405985.7A patent/CN115524226A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115979797A (en) * | 2023-02-14 | 2023-04-18 | 江苏千瑞纺织科技有限公司 | Textile fabric strength detection device |
| CN115979797B (en) * | 2023-02-14 | 2023-11-14 | 江苏千瑞纺织科技有限公司 | Textile fabric strength detection device |
| CN115979819A (en) * | 2023-02-16 | 2023-04-18 | 江苏联发高端纺织技术研究院 | Stretching device for textile fabric elasticity test |
| CN115979819B (en) * | 2023-02-16 | 2023-11-07 | 江苏联发高端纺织技术研究院 | Stretching device for elasticity test of textile fabric |
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Application publication date: 20221227 |