CN102825711A - Plasticizing system and plasticizing method of foam filled material - Google Patents
Plasticizing system and plasticizing method of foam filled material Download PDFInfo
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- CN102825711A CN102825711A CN2012102250089A CN201210225008A CN102825711A CN 102825711 A CN102825711 A CN 102825711A CN 2012102250089 A CN2012102250089 A CN 2012102250089A CN 201210225008 A CN201210225008 A CN 201210225008A CN 102825711 A CN102825711 A CN 102825711A
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Abstract
The invention discloses a plasticizing system and a plasticizing method of a foam filled material. The system comprises a controller, a temperature control meter, a cold water machine, a plasticizing mold and a cooling furnace, wherein the cold water machine is connected with the cooling furnace through a water inlet tube and a water outlet tube, convex grooves stretching downward and having downward openings are arranged on the upper template of the plasticizing mold, concave grooves corresponding with the convex grooves are arranged on the lower template of the plasticizing mold, the lower edges of the convex grooves are positioned in the concave grooves, and the depths of the convex grooves are greater than the depths of the concave grooves; the upper surface of the upper template of the plasticizing mold and the lower surface of the lower template are respectively provided with a heating plate; the temperature control meter is connected with the cooling furnace and the heating plates respectively; and the controller is connected with the temperature control meter, the cold water machine and the plasticizing mold respectively. The system effectively improves the strength, the toughness, the softness, the hardness, the shape, the service life and the like of the foam filled material after plasticizing processing; and the prepared product quality is substantially improved.
Description
Technical field
The present invention relates to plastotype machinery, especially relate to a kind of plastotype system and plastotype method of the foam-filled material that can improve the quality of products.
Background technology
Foam-filled material; When producer buys into, be plate shaped; Plate shaped packing material is cut by the size and the shape of the needed foam-filled material of product; Wrap composite then, the shape of the product of producing differs greatly with the shape and the size of size with the product of actual needs.
Though foam-filled material has the advantage of light weight,, also have more crisp, broken under the impact of external force easily; The shortcoming that toughness, soft durometer are also poor.
Therefore, press for a kind of performance that can improve foam-filled material at present, thus plastotype system of effectively improving the quality of products and plastotype method.
Chinese patent Granted publication number: CN1424191A discloses a kind of plastotype machine June 18 2003 Granted publication day, and it comprises: a fixation clip; One displacable platen; Fixed die by said fixation clip support; Removable mould by said displacable platen support; One opening and closing device; It comprises a screw shaft that is connected with said displacable platen; Said opening and closing device rotating screw bolt axle so that said removable mould near or away from said fixed die; Open and close said mould thus, wherein, take said fixed die away from said fixation clip on the direction that can intersect in switching direction with said removable mould.This invention is the plastotype that is used for plastic material.Therefore, the weak point of this invention is, function singleness can not be used for the plastotype of foam-filled material.
Summary of the invention
The present invention is the deficiency for the performance that can not improve foam-filled material that overcomes plastotype machine of the prior art, and a kind of plastotype system and plastotype method of the foam-filled material that can improve the quality of products is provided.
To achieve these goals, the present invention adopts following technical scheme:
A kind of plastotype system of foam-filled material comprises controller, temp controlled meter, cooling-water machine, plastotype mould and cool furnace; Cooling-water machine is connected with cool furnace with outlet pipe through water inlet pipe; The cope match-plate pattern of said plastotype mould is provided with to the tongue that extends below and Open Side Down; The lower bolster of plastotype mould is provided with and the corresponding groove of tongue; The lower limb of tongue is positioned at groove, and the degree of depth of tongue is less than the degree of depth of groove; Be respectively equipped with heating plate on the upper surface of the cope match-plate pattern of said plastotype mould and the lower surface of lower bolster; Temp controlled meter is connected with heating plate with cool furnace respectively; Controller is connected with temp controlled meter, cooling-water machine and plastotype mould respectively.
Plastotype of the present invention system is used for system that foam-filled material is heated and cools off, and after heating and cooling, the structure of foam-filled material changes; Thereby make the intensity enhancing of foam-filled material; Toughness increases, and soft durometer changes, increase service life, and shape also can produce certain change; When the foam-filled manufacture of materials product that uses through the processing of this plastotype system, product quality can be significantly improved.
Controller is used to receive the data of each device transmission, and to data analysis, calculate and do further control and handle.Temp controlled meter is used to control the temperature in heating plate and the cool furnace.Cooling-water machine is used to store cooling water.The plastotype mould is used to place the foam-filled material of needs processing.Cool furnace is used for the foam-filled material of accomplishing heating process is cooled off.The setting of the structure of groove and tongue; When making plastotype mould matched moulds; Groove and tongue form the cavity of a closure, and foam-filled material is placed in the groove, when matched moulds; For the pressure of avoiding upper and lower mould fill material crush broken, the certain gap that upper and lower mould keeps under the effect of drag hook; When heating, certain clearance is arranged at foam-filled material upper surface and cavity top like this, and mould adopts the mutual-inserting type structure, and temperature is not easy loss; When temperature raise, foam-filled material can soften, and the cavity top that is arranged so that in gap can not be expressed to foam-filled material.Foam-filled material is in the process of heating, and structure changes, and each item performance is changed, thereby has improved the quality of product.Because foam-filled quality of materials is low weight, therefore, adopt that the product that comes out through the foam-filled manufacture of materials of processing has that light weight, intensity are good, good toughness, soft durometer is good, the life-span is long characteristics.
In splice, be provided with some electrothermal tubes, electrothermal tube is connected with controller.
As preferably, said plastotype system also comprises carriage and transport; Said plastotype mould is 2, is respectively the first plastotype mould and the second plastotype mould; The first plastotype mould and the second plastotype mould are located at respectively on the carriage, and carriage is connected with transport.
As preferably, said transport comprises horizontal lead screw, two guide posts and the conveying motor that is connected with horizontal lead screw.
As the replacement scheme of such scheme, said transport comprises chain, two guide posts and the conveying motor that is connected with chain.
Transport is used for first, the plastotype mould moves, and makes first, second plastotype mould can between each station, accomplish the continuous heating and the operation of cooling.
As preferably, said cool furnace comprises coldplate and following coldplate, and said temp controlled meter is connected with cool furnace with heating plate with temperature sensor in the last coldplate through being located at heating plate respectively.
According to the shape and the size of product, the shape and size of the foam-filled material of filling in the deisgn product; Shape and size according to the foam-filled material that designs cut out foam-filled material to be processed with radium-shine laser cutting machine.
A kind of plastotype method of plastotype system of foam-filled material comprises the steps:
(1) coolant water temperature is set in the foam-filled material heating of processing and the requirement of cooling as required in cooling-water machine, and setting needs the high temperature range and the low temperature numerical value that needs cooling of heating in temp controlled meter, in controller, sets heat time heating time;
(2) foam-filled material is put into the first plastotype mould that is arranged in No. 1 station with instrument; Controller is controlled the upper and lower template matched moulds of the first plastotype mould; Under action of high temperature, the structure of foam-filled material changes gradually, and the shape of foam-filled material also changes;
(3) controller control cooling water circulates in the upper and lower coldplate of cool furnace;
(4) the interior electrothermal tube energising of heating plate of the first plastotype mould is located in controller control; Temperature sensor in the upper and lower heating plate of the first plastotype mould detects the interior temperature value of heating plate respectively and sends the temperature value that detects to temp controlled meter; Temp controlled meter compares temperature value of receiving and preset high temperature range; When the temperature value of last temperature sensor in the upper and lower heating plate of the first plastotype mould gets into preset high temperature range, get into holding stage; When reaching predetermined heat time heating time, controller is delivered to the first plastotype mould between the upper and lower coldplate of the cool furnace of No. 2 stations through the control transport;
(5) cope match-plate pattern of the second plastotype mould that is positioned at No. 3 stations is opened in controller control, with instrument foam-filled material to be processed is put into the groove of the lower bolster of the second plastotype mould, and controller is controlled the upper and lower template matched moulds of the second plastotype mould; The electrothermal tube energising in the second plastotype mould is located in controller control; Temperature sensor in the upper and lower heating plate of the second plastotype mould detects the interior temperature value of heating plate and the temperature value that detects is transferred to temp controlled meter, and the temperature sensor of being located in the coldplate also is transferred to temp controlled meter with the temperature value that records;
After temperature value that the temperature sensor in the last coldplate records gets into the predetermined high temperature range and the second plastotype mould less than the temperature value of last temperature sensor in the upper and lower heating plate of the preset low temperature numerical value and the second plastotype mould upper and lower heating plate reaches predetermined heat time heating time; Controller control transport drives first and second plastotype mould and moves in the other direction; Get into No. 1 station until the first plastotype mould, the second plastotype mould gets between the upper and lower coldplate of the cool furnace of No. 2 stations;
(6) on No. 1 station, the first plastotype mould is opened in controller control, takes out the good foam-filled material of plastotype with instrument; Again in the groove of the lower bolster of the first plastotype mould, put into foam-filled material to be processed with instrument; On No. 2 stations, the first plastotype mould cools off in upper and lower coldplate; Continue the above process of repetition, the process of the foam-filled material heating of the completion that goes round and begins again, cooling.
As preferably, said high temperature range is 195 degrees centigrade to 205 degrees centigrade.
As preferably, said low temperature numerical value≤60 degrees centigrade.
As preferably, the temperature of said cooling water is 9 degrees centigrade to 11 degrees centigrade.
Therefore, the present invention has following beneficial effect: (1) through after the plastotype processing, effectively improved foam-filled material intensity, toughness, soft durometer, shape and service life each item performance; (2) two plastotype moulds alternately heat, cool off, and effectively raise operating efficiency; The quality of the product of (3) processing significantly improves.
Description of drawings
Fig. 1 is a connection block diagram of the present invention;
Fig. 2 is a kind of structural representation that plastotype mould of the present invention matches with carriage.
Among the figure: controller 1, temp controlled meter 2, cooling-water machine 3, transport 4, temperature sensor 5, plastotype mould 6, heating plate 7, cool furnace 8, cope match-plate pattern 9, tongue 10, groove 11, lower bolster 12, carriage 13, hook plate 14.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further description.
Embodiment as shown in Figure 1 is a kind of plastotype system of foam-filled material, comprises PLC controller 1, temp controlled meter 2, cooling-water machine 3, plastotype mould 6 and cool furnace 8; Cooling-water machine is connected with cool furnace with outlet pipe through water inlet pipe; As shown in Figure 2; The cope match-plate pattern 9 of plastotype mould is provided with to the tongue 10 that extends below and Open Side Down, and the lower bolster of plastotype mould is provided with and the corresponding groove 11 of tongue, and the lower limb of tongue is positioned at groove; The degree of depth of tongue is 6 millimeters, and the degree of depth of groove is 3 millimeters; Be respectively equipped with heating plate 7 on the lower surface of the upper surface of the cope match-plate pattern of said plastotype mould and lower bolster 12.
As shown in Figure 1, temp controlled meter is connected with heating plate with cool furnace respectively; The PLC controller is connected with temp controlled meter, cooling-water machine and plastotype mould respectively.
The plastotype system also comprises carriage and transport 4; Said plastotype mould is 2, is respectively the first plastotype mould and the second plastotype mould; The first plastotype mould and the second plastotype mould are located at respectively on the carriage 13, and carriage is connected with transport.Transport comprises horizontal lead screw, two guide posts and the conveying motor that is connected with horizontal lead screw.Cool furnace comprises coldplate and following coldplate, and temp controlled meter is connected with cool furnace with heating plate with temperature sensor 5 in the last coldplate through being located at heating plate.
As shown in Figure 2, the PLC controller drives upper and lower the moving of cope match-plate pattern of plastotype moulds through hook plate 14, thereby opens or the upper and lower template of the plastotype mould that closes.
At initial position, the first plastotype mould is positioned at station No. 1, the second plastotype mould between the upper and lower coldplate of the cool furnace of No. 2 stations, No. 3 station free time.
Adopt the foam-filled material of RIMA as the packing material in the beater plate of ice stick in the present embodiment; Shape and size according to the ice stick beater plate; The shape and size of the foam-filled material of RIMA of filling in the design beater plate; Shape and size according to the foam-filled material of RIMA that designs cut out the foam-filled material of RIMA to be processed with radium-shine laser cutting machine.
The plastotype method comprises the steps:
(1) the foam-filled material heating of RIMA of the beater plate of the ice stick of processing and the requirement of cooling as required; In cooling-water machine, setting coolant water temperature is 10 degrees centigrade; To need the high temperature range of heating be 195 degree to 205 degree and to need the low temperature numerical value of cooling be 60 degrees centigrade in setting in temp controlled meter, and in the PLC controller, setting heat time heating time is 20 minutes.
(2) the foam-filled material of RIMA is put into the groove of the lower bolster of the first plastotype mould that is arranged in No. 1 station with instrument; The cope match-plate pattern that controller control hook plate drives the first plastotype mould moves down; Upper and lower template matched moulds; Under action of high temperature, the structure of the foam-filled material of RIMA changes gradually, and the shape of the foam-filled material of RIMA also changes;
(3) PLC controller control cooling water circulates in the upper and lower coldplate of cool furnace;
(4) the interior electrothermal tube energising of heating plate of the first plastotype mould is located in the control of PLC controller; Temperature sensor in the upper and lower heating plate of the first plastotype mould detects the interior temperature value of heating plate respectively and sends the temperature value that detects to temp controlled meter; Temp controlled meter compares temperature value of receiving and 195 degrees centigrade to 205 degrees centigrade preset high temperature range; When the temperature value of last temperature sensor in the upper and lower heating plate of the first plastotype mould got into 195 degrees centigrade to 205 degrees centigrade high temperature range and reaches 20 minutes preset on the PLC controller heat time heating time, the PLC controller was delivered to the first plastotype mould between the upper and lower coldplate of the cool furnace of No. 2 stations through transport;
(5) the PLC controller control hook plate cope match-plate pattern that drives the second plastotype mould that is positioned at No. 3 stations moves up; The foam-filled material of RIMA to be processed is put into the groove of the lower bolster of the second plastotype mould with instrument; The cope match-plate pattern that PLC controller control hook plate drives the second plastotype mould moves down upper and lower template matched moulds; The electrothermal tube energising in the second plastotype mould is located in the control of PLC controller; Temperature sensor in the upper and lower heating plate of the second plastotype mould detects the interior temperature value of heating plate and the temperature value that detects is transferred to temperature controller, and the temperature sensor of being located in the coldplate also is transferred to temp controlled meter with the temperature value that records;
When temperature value that the temperature sensor in the last coldplate records gets into 195 degrees centigrade to 205 degrees centigrade high temperature range and reaches 20 minutes heat time heating times that on the PLC controller, set less than the temperature value of last temperature sensor in the upper and lower heating plate of 60 degree and the second plastotype mould; The PLC controller drives first and second plastotype mould through transport and moves in the other direction; Get into No. 1 station until the first plastotype mould, the second plastotype mould gets between the upper and lower coldplate of the cool furnace of No. 2 stations;
(6) on No. 1 station, the cope match-plate pattern that PLC controller control hook plate drives first mo(u)lding-die moves up, and the upper and lower template of the first plastotype mould is separated, and from the groove of lower bolster, takes out the good foam-filled material of RIMA of plastotype with instrument; Again in the groove of the lower bolster of the first plastotype mould, put into the foam-filled material of RIMA to be processed with instrument; On No. 2 stations, the upper and lower template of the first plastotype mould is cooled off in upper and lower coldplate; Continue the above process of repetition, the process of the foam-filled material heating of the completion that goes round and begins again, cooling.
Coolant water temperature in this enforcement, high temperature range, low temperature numerical value and the foam-filled material of processing as required heat time heating time of RIMA are set, and different foam-filled material requires are provided with different temperature numerical value.
Transport in the present embodiment also can be for comprising chain, two guide posts and the conveying motor that is connected with chain.
Should be understood that present embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (9)
1. the plastotype system of a foam-filled material is characterized in that, comprises controller (1), temp controlled meter (2), cooling-water machine (3), plastotype mould (6) and cool furnace (8); Cooling-water machine is connected with cool furnace with outlet pipe through water inlet pipe; The cope match-plate pattern of said plastotype mould (9) is provided with to the tongue that extends below and Open Side Down (10); The lower bolster of plastotype mould is provided with and the corresponding groove of tongue (11); The lower limb of tongue is positioned at groove, and the degree of depth of tongue is less than the degree of depth of groove; Be respectively equipped with heating plate (7) on the lower surface of the upper surface of the cope match-plate pattern of said plastotype mould and lower bolster (12); Temp controlled meter is connected with heating plate with cool furnace respectively; Controller is connected with temp controlled meter, cooling-water machine and plastotype mould respectively.
2. the plastotype system of foam-filled material according to claim 1 is characterized in that, said plastotype system also comprises carriage and transport (4); Said plastotype mould is 2, is respectively the first plastotype mould and the second plastotype mould; The first plastotype mould and the second plastotype mould are located at respectively on the carriage (13), and carriage is connected with transport.
3. the plastotype system of foam-filled material according to claim 2 is characterized in that, said transport comprises horizontal lead screw, two guide posts and the conveying motor that is connected with horizontal lead screw.
4. the plastotype system of foam-filled material according to claim 2 is characterized in that, said transport comprises chain, two guide posts and the conveying motor that is connected with chain.
5. the plastotype system of foam-filled material according to claim 1; It is characterized in that; Said cool furnace comprises coldplate and following coldplate, and said temp controlled meter is connected with cool furnace with heating plate with temperature sensor (5) in the last coldplate through being located at heating plate.
6. the plastotype method of the plastotype system of a foam-filled material is applicable to it is characterized in that the plastotype system of the described foam-filled material of claim 1, comprises the steps:
(1) coolant water temperature is set in the foam-filled material heating of processing and the requirement of cooling as required in cooling-water machine, and setting needs the high temperature range and the low temperature numerical value that needs cooling of heating in temp controlled meter, in controller, sets heat time heating time;
(2) foam-filled material is put into the first plastotype mould that is arranged in No. 1 station with instrument; Controller is controlled the upper and lower template matched moulds of the first plastotype mould; Under action of high temperature, the structure of foam-filled material changes gradually, and the shape of foam-filled material also changes;
(3) controller control cooling water circulates in the upper and lower coldplate of cool furnace;
(4) the interior electrothermal tube energising of heating plate of the first plastotype mould is located in controller control; Temperature sensor in the upper and lower heating plate of the first plastotype mould detects the interior temperature value of heating plate respectively and sends the temperature value that detects to temp controlled meter; Temp controlled meter compares temperature value of receiving and preset high temperature range; When the temperature value of last temperature sensor in the upper and lower heating plate of the first plastotype mould gets into preset high temperature range, get into holding stage; When reaching predetermined heat time heating time, controller is delivered to the first plastotype mould between the upper and lower coldplate of the cool furnace of No. 2 stations through the control transport;
(5) cope match-plate pattern of the second plastotype mould that is positioned at No. 3 stations is opened in controller control, with instrument foam-filled material to be processed is put into the groove of the lower bolster of the second plastotype mould, and controller is controlled the upper and lower template matched moulds of the second plastotype mould; The electrothermal tube energising in the second plastotype mould is located in controller control; Temperature sensor in the upper and lower heating plate of the second plastotype mould detects the interior temperature value of heating plate and the temperature value that detects is transferred to temp controlled meter, and the temperature sensor of being located in the coldplate also is transferred to temp controlled meter with the temperature value that records;
After temperature value that the temperature sensor in the last coldplate records gets into the predetermined high temperature range and the second plastotype mould less than the temperature value of last temperature sensor in the upper and lower heating plate of the preset low temperature numerical value and the second plastotype mould upper and lower heating plate reaches predetermined heat time heating time; Controller control transport drives first and second plastotype mould and moves in the other direction; Get into No. 1 station until the first plastotype mould, the second plastotype mould gets between the upper and lower coldplate of the cool furnace of No. 2 stations;
(6) on No. 1 station, the first plastotype mould is opened in controller control, takes out the good foam-filled material of plastotype with instrument; Again in the groove of the lower bolster of the first plastotype mould, put into foam-filled material to be processed with instrument; On No. 2 stations, the first plastotype mould cools off in upper and lower coldplate; Continue the above process of repetition, the process of the foam-filled material heating of the completion that goes round and begins again, cooling.
7. the plastotype method of the plastotype system of foam-filled material according to claim 6 is characterized in that, said high temperature range is 195 degrees centigrade to 205 degrees centigrade.
8. the plastotype method of the plastotype system of foam-filled material according to claim 6 is characterized in that, said low temperature numerical value≤60 degrees centigrade.
9. the plastotype method of the plastotype system of foam-filled material according to claim 6, the temperature of said cooling water is 9 degrees centigrade to 11 degrees centigrade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210225008.9A CN102825711B (en) | 2012-07-03 | 2012-07-03 | Plasticizing system and plasticizing method of foam filled material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210225008.9A CN102825711B (en) | 2012-07-03 | 2012-07-03 | Plasticizing system and plasticizing method of foam filled material |
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| CN102825711A true CN102825711A (en) | 2012-12-19 |
| CN102825711B CN102825711B (en) | 2014-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346686A (en) * | 2016-11-30 | 2017-01-25 | 无锡锦和科技有限公司 | Temperature control device for heat plates of supercritical carbon dioxide foam molding machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS562138A (en) * | 1979-06-19 | 1981-01-10 | Uchiyama Mfg Corp | Foaming styrol board having melted bark layer |
| US4333897A (en) * | 1978-07-18 | 1982-06-08 | Mitsubishi Petrochemical Company Limited | Method and mold for molding prefoamed particulate thermoplastic synthetic resin material |
| US4390486A (en) * | 1981-03-19 | 1983-06-28 | Ex-Cell-O Corporation | Method and apparatus for heating a mold cavity uniformly |
| JP2004042601A (en) * | 2002-05-15 | 2004-02-12 | Meiki Co Ltd | Molding mold and molding method |
| CN202186011U (en) * | 2011-07-25 | 2012-04-11 | 苏州宏远电子有限公司 | Processing die for MCPET (micro-forming polyethylene terephthalate) plate |
-
2012
- 2012-07-03 CN CN201210225008.9A patent/CN102825711B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333897A (en) * | 1978-07-18 | 1982-06-08 | Mitsubishi Petrochemical Company Limited | Method and mold for molding prefoamed particulate thermoplastic synthetic resin material |
| JPS562138A (en) * | 1979-06-19 | 1981-01-10 | Uchiyama Mfg Corp | Foaming styrol board having melted bark layer |
| US4390486A (en) * | 1981-03-19 | 1983-06-28 | Ex-Cell-O Corporation | Method and apparatus for heating a mold cavity uniformly |
| JP2004042601A (en) * | 2002-05-15 | 2004-02-12 | Meiki Co Ltd | Molding mold and molding method |
| CN202186011U (en) * | 2011-07-25 | 2012-04-11 | 苏州宏远电子有限公司 | Processing die for MCPET (micro-forming polyethylene terephthalate) plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346686A (en) * | 2016-11-30 | 2017-01-25 | 无锡锦和科技有限公司 | Temperature control device for heat plates of supercritical carbon dioxide foam molding machine |
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| CN102825711B (en) | 2014-06-25 |
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Effective date of registration: 20221221 Address after: 60 Jean Paul Kayer Street, Branville, Quebec, Canada J7C0N9 Patentee after: Ball Hockey Co.,Ltd. Address before: 314500 199 Fengxiang East Road, Wutong street, Tongxiang, Jiaxing, Zhejiang Patentee before: TONGXIANG BONNY SCIENCE & TECHNOLOGY COMPOSITE Co.,Ltd. |
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| CI03 | Correction of invention patent |
Correction item: Patentee Correct: Ball Hockey Co.,Ltd. False: Ball Hockey Co.,Ltd. Number: 01-01 Volume: 39 |
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| CI03 | Correction of invention patent |