An integrated production device for efficiently regenerating spandex yarn from spandex waste yarn

Abstract

This invention relates to the field of spandex waste filament recycling technology, specifically disclosing an integrated production device for high-efficiency recycling of spandex waste filaments. The device includes: a base, with rectangularly distributed connecting columns fixedly connected to the top of the base; four connecting columns having a single conveyor belt fixedly connected to their top ends; the conveyor belt being arranged in a mesh pattern for conveying the recycled spandex waste filaments; and a cutting assembly positioned on top of the conveyor belt for traction and crushing the recycled spandex waste filaments. This invention allows for the traction of the spandex waste filaments during cutting. After traction, the spandex waste filaments automatically move to below the cutting blades. Under the action of the reciprocating cutting blades and a fixed plate, the spandex waste filaments are uniformly cut, resulting in filaments of uniform size, facilitating subsequent recycling. The cut spandex waste filaments are then directly conveyed to a spray rinsing assembly, ensuring strong process continuity.

Description

Technical Field

[0001] The invention belongs to the technical field of spandex waste yarn regeneration, and specifically relates to an integrated production device for efficiently regenerating spandex yarn from spandex waste yarn. Background Art

[0002] Spandex is the abbreviation of polyurethane fiber, which is an elastic fiber. Spandex can be used in clothing that needs to be stretched to meet comfort requirements. A large amount of waste silk is often generated in the production process of spandex. Spandex waste silk refers to the waste silk generated in the production process of polyurethane fiber (spandex). These waste silks mainly come from color and specification errors in the production process and cutting leftovers. In order to avoid the waste of waste silk, these waste silks can be recycled and reused.

[0003] In the Chinese patent with publication number CN113308766B, an integrated production system and processing method for efficiently regenerating spandex yarn based on spandex waste yarn is mentioned. Through the setting of the waste yarn clamping mechanism, it is convenient to quickly clamp and position the spandex waste yarn, and convenient to cut the spandex waste yarn. The shearing component can effectively prevent the spandex waste yarn from shifting during shearing, thereby improving the shearing quality.

[0004] The cutting of spandex waste yarn in the above-mentioned prior art lacks traction of the spandex waste yarn, resulting in low efficiency in cutting. In addition, after cleaning the spandex waste yarn, it is necessary to take it out of the cleaning equipment and put it into the drying equipment for drying. The continuity of the process is poor, which affects the recovery efficiency of the spandex waste yarn. For this reason, we propose an integrated production device for efficiently regenerating spandex yarn from spandex waste yarn. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated production device for efficiently regenerating spandex yarn from spandex waste yarn, so as to solve the problems in the prior art of lack of traction of spandex waste yarn and poor continuity of process leading to low efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An integrated production device for efficiently regenerating spandex yarn from spandex waste yarn, comprising:

[0008] A base, the top of which is fixedly connected to connecting columns distributed in a rectangular shape, and the tops of four connecting columns are fixedly connected to the same conveyor belt, which is arranged in a mesh shape and is used for conveying recycled spandex waste yarns;

[0009] A cutting assembly, which is arranged on the top of the conveyor belt and is used for traction and crushing of the recycled spandex waste yarns. The cutting assembly comprises a fixed plate fixedly connected to the top of the conveyor belt, an active roller for traction of the spandex waste yarns is arranged on the left side of the fixed plate, and a cutting tool capable of reciprocating in the up and down directions is arranged above the fixed plate;

[0010] A drying component, which is arranged on the top of the conveyor belt and is used to dry the washed spandex waste yarns and heat the water used to wash the spandex waste yarns. The drying component includes a cover body fixedly connected to the top of the conveyor belt, and a heating tube group is arranged inside the cover body;

[0011] A spray cleaning component is arranged on the top of the conveyor belt and is used for cleaning the recycled spandex waste yarn. The spray cleaning component includes a spray rack fixedly connected to the top of the conveyor belt, a diversion pipe is arranged on the inner side of the spray rack, and high-pressure nozzles distributed at equal intervals are fixedly connected to the bottom of the diversion pipe, and a heat exchange pipe for water heat exchange is arranged on the inner side of the cover body.

[0012] Preferably: the cutting assembly also includes a motor frame fixedly connected to the outer side of the fixed plate, the motor frame is fixedly connected to a driving motor for providing power, the driving motor is fixedly connected to a rotating rod via an output shaft, and the active roller is fixedly connected to the outer side of the rotating rod.

[0013] Preferably: the top of the fixed plate is fixedly connected to a symmetrically distributed connecting plate, the middle of the two connecting plates is movably connected to the same curved transmission rod through a bearing, the curved transmission rod is movably connected to a connecting rod at the bending part through a bearing, and the other end of the connecting rod is movably connected to the top of the cutting tool through a pin shaft.

[0014] Preferably: the outer side of the rotating rod is movably connected with two symmetrically distributed mounting strips via a bearing, the mounting strips are fixedly connected to the outer side of the fixed plate, the outer side of the curved transmission rod and the outer side of the rotating rod are provided with the same pulley group, and the outer side of the rotating rod and the outer side of the curved transmission rod are transmission-connected via the pulley group.

[0015] Preferably: the outer side of the connecting plate is fixedly connected to a top plate, two groups of symmetrically distributed cylinders are arranged on the top plate, the telescopic ends of the two cylinders are fixedly connected to the same U-shaped bar, and the inner side of the U-shaped bar is movably connected to a pressure roller via a bearing.

[0016] Preferably, the drying component further comprises a fan arranged on the top of the cover body, the fans are distributed on the top of the cover body at equal intervals, and the air inlet of the fan extends to the outside of the cover body.

[0017] Preferably: the spray cleaning assembly includes an insulated water tank fixedly connected to the outside of the conveyor belt, a water pump is fixedly connected to the top of the insulated water tank, a connecting pipe is fixedly connected to the water outlet of the water pump, and the other end of the connecting pipe passes through the spray rack and extends into the inside of the diversion pipe.

[0018] Preferably, the water pump suction port is fixedly connected with a suction pipe, and the other end of the suction pipe passes through the top of the thermal insulation water tank and extends into the interior of the thermal insulation water tank.

[0019] Preferably: the front end of the heat exchange tube is fixedly connected to a water inlet pipe, the other end of the water inlet pipe passes through the front side of the cover body and extends outside the cover body, the rear end of the heat exchange tube is fixedly connected to a water outlet pipe, the other end of the water outlet pipe passes through the rear side of the cover body and the top of the insulation water tank, and extends into the interior of the insulation water tank.

[0020] Preferably: a water collecting box is arranged on the top of the base, and the water collecting box is arranged at the bottom of the spray rack; a recovery box is arranged on the top of the base, and the recovery box is arranged below the discharge port of the conveyor belt.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention can pull the spandex waste yarns when cutting the spandex waste yarns through the setting of the cutting component. The pulled spandex waste yarns automatically move under the cutting tool. Under the action of the reciprocating cutting tool and the fixed plate, the spandex waste yarns are evenly cut, which greatly improves the cutting efficiency of the spandex waste yarns. The spandex waste yarns after cutting are uniform in size, which is convenient for subsequent recycling and regeneration.

[0023] 2. The present invention arranges a spray flushing component, and the cut spandex waste yarns are directly transported to the bottom of the spray flushing component. The high-pressure nozzle flushes the cut spandex waste yarns on the conveyor belt. The flushed spandex waste yarns are directly transported to the drying component for drying. The process has strong continuity, which greatly improves the work efficiency of recycling and regenerating spandex waste yarns.

[0024] 3. The present invention sets a drying component, and the fan blows the heated air to the spandex waste yarn on the conveyor belt to quickly dry it, with high working efficiency. In addition, the drying component can heat the water for washing the spandex waste yarn while drying the spandex waste yarn, so as to facilitate the washing of grease and other impurities adsorbed on the spandex waste yarn, and further facilitate the subsequent recycling and regeneration of the spandex waste yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 One of the three-dimensional diagrams of the present invention;

[0026] Figure 2 This is the second stereogram of the present invention;

[0027] Figure 3 It is a partial structural schematic diagram of the conveyor belt of the present invention;

[0028] Figure 4 It is a schematic diagram of the cutting component part of the present invention;

[0029] Figure 5 It is a schematic diagram of the connection between the bending transmission rod and the cutting tool of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the top plate of the present invention;

[0031] Figure 7 It is a schematic diagram of the connection between the spray cleaning component and the drying component of the present invention;

[0032] Figure 8 It is a schematic diagram of the connection between the water pump and the shunt pipe of the present invention;

[0033] Fig. 9 It is a schematic cross-sectional view of the inner part of the cover body of the present invention.

[0034] In the figure:

[0035] 1. Base; 2. Connecting column; 3. Conveyor belt;

[0036] 31. Cutting assembly; 311. Top plate; 312. Cylinder; 313. Active roller; 314. Press roller; 315. Driving motor; 316. Motor frame; 317. Connecting plate; 318. Cutting tool; 319. Fixing plate; 3110. Mounting bar; 3111. Connecting rod; 3112. Bending transmission rod; 3113. U-shaped bar;

[0037] 32. Spray cleaning assembly; 321. Water collecting box; 322. Insulated water tank; 323. Spray rack; 324. Water inlet pipe; 325. Water outlet pipe; 326. Water pump; 327. Connecting pipe; 328. Diverter pipe; 329. High-pressure nozzle; 3210. Water extraction pipe; 3211. Heat exchange pipe;

[0038] 33. Drying assembly; 331. Cover; 332. Fan; 333. Heating tube assembly;

[0039] 34. Recycling box; 35. Pulley assembly. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Reference Figure 1-Figure 9 As shown, the present invention provides an integrated production device for efficiently regenerating spandex yarn from spandex waste yarn, comprising:

[0042] A base 1, the top of the base 1 is fixedly connected with connecting columns 2 distributed in a rectangular shape, and the tops of four connecting columns 2 are fixedly connected with a same conveyor belt 3, which is arranged in a mesh shape and is used for conveying recycled spandex waste yarn;

[0043] A recovery box 34 is provided on the top of the base 1, and the recovery box 34 is provided below the discharge port of the conveyor belt 3;

[0044] A cutting assembly 31 is arranged on the top of the conveyor belt 3 and is used for traction and crushing of the recycled spandex waste yarn. The cutting assembly 31 includes a fixed plate 319 fixedly connected to the top of the conveyor belt 3, an active roller 313 for traction of the spandex waste yarn is arranged on the left side of the fixed plate 319, and a cutting tool 318 capable of reciprocating in the up and down directions is arranged above the fixed plate 319;

[0045] A drying component 33 is arranged on the top of the conveyor belt 3, and is used to dry the washed spandex waste yarns and heat the water used to wash the spandex waste yarns. The drying component 33 includes a cover body 331 fixedly connected to the top of the conveyor belt 3, and a heating pipe group 333 is arranged inside the cover body 331;

[0046] A spray cleaning component 32 is provided on the top of the conveyor belt 3 and is used for cleaning the recycled spandex waste yarns. The spray cleaning component 32 includes a spray rack 323 fixedly connected to the top of the conveyor belt 3, a diversion pipe 328 is provided on the inner side of the spray rack 323, high-pressure nozzles 329 distributed at equal intervals are fixedly connected to the bottom of the diversion pipe 328, and a heat exchange pipe 3211 for water heat exchange is provided on the inner side of the cover body 331.

[0047] Specifically, the heat exchange tube 3211 is made of metal with high heat conduction efficiency, which facilitates the heating tube group 333 to heat the water inside it, and the high-temperature water has a good cleaning effect on the spandex waste.

[0048] In a further embodiment, referring to Figure 1-Figure 6The cutting assembly 31 also includes a motor frame 316 fixedly connected to the outer side of the fixed plate 319, and a driving motor 315 for providing power is fixedly connected to the motor frame 316. The driving motor 315 is fixedly connected to a rotating rod through an output shaft, and an active roller 313 is fixedly connected to the outer side of the rotating rod. A symmetrically distributed connecting plate 317 is fixedly connected to the top of the fixed plate 319, and a same curved transmission rod 3112 is movably connected to the middle of the two connecting plates 317 through a bearing, and a connecting rod 3111 is movably connected to the bending part of the curved transmission rod 3112 through a bearing, and the other end of the connecting rod 3111 is movably connected to the top of the cutting tool 318 through a pin shaft, and two symmetrically distributed mounting strips 3110 are movably connected to the outer side of the rotating rod through a bearing, and the mounting strip 3110 is fixedly connected to the outer side of the fixed plate 319, and the outer side of the curved transmission rod 3112 and the outer side of the rotating rod are provided with the same pulley group 35, and the outer side of the rotating rod and the outer side of the curved transmission rod 3112 are transmission-connected through the pulley group 35.

[0049] Specifically, when the rotating rod rotates, the curved transmission rod 3112 is driven to rotate through the pulley group 35, and the two rotate synchronously, which reduces the use of motors and greatly improves the linkage between the curved transmission rod 3112 and the rotating rod in the device.

[0050] In this embodiment, the driving motor 315 drives the rotating rod and the bending transmission rod 3112 to rotate simultaneously through the output shaft. The rotation of the active roller 313 pulls the spandex waste yarn and transports it to the bottom of the cutting tool 318. The rotation of the bending transmission rod 3112 drives the cutting tool 318 to reciprocate in the up and down directions through the connecting rod 3111. When the cutting tool 318 moves downward, the spandex waste yarn on the fixed plate 319 is cut to facilitate subsequent recycling.

[0051] In a further embodiment, referring to Figure 1-Figure 3 and Figure 6 The outer side of the connecting plate 317 is fixedly connected to a top plate 311, and two groups of symmetrically distributed cylinders 312 are arranged on the top plate 311. The telescopic ends of the two cylinders 312 are fixedly connected to the same U-shaped bar 3113, and the inner side of the U-shaped bar 3113 is movably connected to a pressure roller 314 through a bearing.

[0052] In this embodiment, the contraction of the cylinder 312 can drive the U-shaped bar 3113 and the pressure roller 314 to move upward, which is convenient for one end of the spandex waste yarn to pass through. After it passes through, the cylinder 312 can be extended to squeeze the spandex waste yarn, which is convenient for the outer side of the spandex waste yarn to move and pull it when the active roller 313 rotates, thereby improving processing efficiency.

[0053] In a further embodiment, referring to Figure 7 and Fig. 9The drying component 33 also includes a fan 332 disposed on the top of the cover body 331 . The fans 332 are evenly spaced on the top of the cover body 331 , and the air inlet of the fan 332 extends to the outside of the cover body 331 .

[0054] In this embodiment, the fan 332 drives the air outside the cover body 331 to flow into the cover body 331. The air inside the cover body 331 is heated by the heating tube group 333. The heated air flows downward to dry the cleaned spandex waste yarn below, greatly improving the recycling efficiency.

[0055] In a further embodiment, referring to Figure 7-Figure 9 The spray cleaning assembly 32 includes an insulated water tank 322 fixedly connected to the outside of the conveyor belt 3, a water pump 326 is fixedly connected to the top of the insulated water tank 322, a connecting pipe 327 is fixedly connected to the water outlet of the water pump 326, the other end of the connecting pipe 327 passes through the spray rack 323 and extends into the diversion pipe 328, the water pump 326 suction port is fixedly connected to a suction pipe 3210, the other end of the suction pipe 3210 passes through the top of the insulated water tank 322 and extends into the insulated water tank 322, a water collecting box 321 is arranged on the top of the base 1, and the water collecting box 321 is arranged at the bottom of the spray rack 323.

[0056] In this embodiment, the water pump 326 draws the water in the insulated water tank 322 into the diversion pipe 328, and the water in the diversion pipe 328 is then sprayed out through each high-pressure nozzle 329, thereby cleaning the spandex waste yarn on the conveyor belt 3. The cleaned water passes through the conveyor belt 3 and enters the water collecting box 321 below for collection.

[0057] In a further embodiment, referring to Figure 7 and Fig. 9 The front end of the heat exchange tube 3211 is fixedly connected to the water inlet pipe 324, the other end of the water inlet pipe 324 passes through the front side of the cover body 331 and extends to the outside of the cover body 331, and the rear end of the heat exchange tube 3211 is fixedly connected to the water outlet pipe 325, the other end of the water outlet pipe 325 passes through the rear side of the cover body 331 and the top of the insulation water tank 322, and extends into the insulation water tank 322.

[0058] In this embodiment, when the heating tube group 333 heats the air in the cover body 331, the water in the heat exchange tube 3211 is heated, and the heated water enters the insulation box for storage, which is convenient for the subsequent cleaning of the spandex waste yarn. The high-temperature water cleans the spandex waste yarn, greatly removing oil and other debris carried in the spandex waste yarn, improving the cleaning effect, and facilitating the subsequent recycling of the spandex waste yarn.

[0059] The working principle of the present invention is as follows:

[0060] After the waste yarn produced in the spandex production process is rolled, one end of the rolled spandex waste yarn is passed through the middle of the pressing roller 314 and the driving roller 313, and one end of the rolled spandex waste yarn is placed on the fixed plate 319;

[0061] The driving motor 315 drives the rotating rod to rotate through the output shaft, and the rotating rod drives the active roller 313 to rotate, and drives the rolled spandex waste yarn to move and traction, and the transported spandex waste yarn moves to the bottom of the cutting tool 318;

[0062] At the same time, the rotation of the rotating rod drives the bending transmission rod 3112 to rotate through the pulley group 35, and the rotation of the bending transmission rod drives the cutting tool 318 to reciprocate in the up and down directions through the connecting rod 3111, so as to cut the spandex waste yarn on the fixed plate 319, and the cut spandex waste yarn sections are transported on the conveyor belt 3;

[0063] The cut spandex waste yarn segments enter the bottom of the shunt pipe 328, and the high-pressure nozzle 329 at the bottom of the shunt pipe 328 performs high-pressure washing on the spandex waste yarn segments on the conveyor belt 3. The washed water enters the water collecting box 321 below for collection, and the washed spandex waste yarn segments enter the inside of the cover body 331.

[0064] When the heating tube group 333 is started, the air in the cover body 331 is heated. The heated gas is blown to the spandex waste yarn section on the conveyor belt 3 by the fan 332 to dry it. The dried spandex waste yarn is transported to the recovery box 34 below by the conveyor belt 3. The recovered spandex waste yarn enters the next step for regeneration.

[0065] At the same time, the activation of the heating tube group 333 heats the water in the heat exchange tube 3211 below, and the heated water enters the insulated water tank 322, which is convenient for pumping water for the spray and flushing components.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated production device for efficiently regenerating spandex yarn from spandex waste yarn, characterized in that: include: A base (1), the top of the base (1) is fixedly connected to connecting columns (2) distributed in a rectangular shape, the tops of four connecting columns (2) are fixedly connected to a same conveyor belt (3), the conveyor belt (3) is arranged in a mesh shape and is used for conveying recycled spandex waste yarns; A cutting assembly (31), the cutting assembly (31) being arranged on the top of the conveyor belt (3) and used for pulling and crushing the recycled spandex waste yarns, the cutting assembly (31) comprising a fixed plate (319) fixedly connected to the top of the conveyor belt (3), an active roller (313) for pulling the spandex waste yarns being arranged on the left side of the fixed plate (319), and a cutting tool (318) capable of reciprocating in an up-and-down direction being arranged above the fixed plate (319); A drying component (33), the drying component (33) being arranged on the top of the conveyor belt (3), and being used for drying the washed spandex waste yarns and heating the water for washing the spandex waste yarns, the drying component (33) comprising a cover body (331) fixedly connected to the top of the conveyor belt (3), and a heating pipe group (333) being arranged inside the cover body (331); A spray cleaning component (32), the spray cleaning component (32) is arranged on the top of the conveyor belt (3) and is used for cleaning the recycled spandex waste yarn. The spray cleaning component (32) includes a spray rack (323) fixedly connected to the top of the conveyor belt (3), a diversion pipe (328) is arranged on the inner side of the spray rack (323), and high-pressure nozzles (329) distributed at equal intervals are fixedly connected to the bottom of the diversion pipe (328), and a heat exchange pipe (3211) for water heat exchange is arranged on the inner side of the cover body (331).

2. The integrated production device for efficiently regenerating spandex yarn from spandex waste according to claim 1, characterized in that: The cutting assembly (31) further comprises a motor frame (316) fixedly connected to the outside of the fixed plate (319), a driving motor (315) for providing power being fixedly connected to the motor frame (316), the driving motor (315) being fixedly connected to a rotating rod via an output shaft, and the active roller (313) being fixedly connected to the outside of the rotating rod.

3. The integrated production device for efficiently regenerating spandex yarn from spandex waste according to claim 1, characterized in that: The top of the fixed plate (319) is fixedly connected to a symmetrically distributed connecting plate (317); a same curved transmission rod (3112) is movably connected between the two connecting plates (317) via a bearing; a connecting rod (3111) is movably connected at the bending portion of the curved transmission rod (3112) via a bearing; the other end of the connecting rod (3111) is movably connected to the top of the cutting tool (318) via a pin shaft.

4. The integrated production device for efficiently regenerating spandex yarn from spandex waste according to claim 2, characterized in that: The outer side of the rotating rod is movably connected to two symmetrically distributed mounting strips (3110) via a bearing, and the mounting strips (3110) are fixedly connected to the outer side of the fixed plate (319). The outer side of the curved transmission rod (3112) and the outer side of the rotating rod are provided with the same pulley group (35), and the outer side of the rotating rod and the outer side of the curved transmission rod (3112) are transmission-connected via the pulley group (35).

5. The integrated production device for efficiently regenerating spandex yarn from spandex waste according to claim 3, characterized in that: The outer side of the connecting plate (317) is fixedly connected to a top plate (311), and two groups of symmetrically distributed cylinders (312) are arranged on the top plate (311), and the telescopic ends of the two cylinders (312) are fixedly connected to the same U-shaped bar (3113), and the inner side of the U-shaped bar (3113) is movably connected to a pressure roller (314) via a bearing.

6. The integrated production device for efficiently regenerating spandex yarn from spandex waste according to claim 1, characterized in that: The drying component (33) further comprises a fan (332) arranged on the top of the cover body (331); the fans (332) are distributed at equal intervals on the top of the cover body (331), and the air inlet of the fan (332) extends to the outside of the cover body (331).

7. The integrated production device for efficiently regenerating spandex yarn from spandex waste according to claim 1, characterized in that: The spray cleaning assembly (32) comprises an insulated water tank (322) fixedly connected to the outside of the conveyor belt (3), a water pump (326) fixedly connected to the top of the insulated water tank (322), a connecting pipe (327) fixedly connected to the water outlet of the water pump (326), and the other end of the connecting pipe (327) passes through the spray frame (323) and extends into the interior of the diversion pipe (328).

8. The integrated production device for efficiently regenerating spandex yarn from spandex waste according to claim 7, characterized in that: The water pump (326) has a water suction port fixedly connected to a water suction pipe (3210), and the other end of the water suction pipe (3210) passes through the top of the thermal insulation water tank (322) and extends into the interior of the thermal insulation water tank (322).

9. The integrated production device for efficiently regenerating spandex yarn from spandex waste according to claim 1, characterized in that: The front end of the heat exchange tube (3211) is fixedly connected to a water inlet pipe (324), the other end of the water inlet pipe (324) passes through the front side of the cover body (331) and extends outside the cover body (331), and the rear end of the heat exchange tube (3211) is fixedly connected to a water outlet pipe (325), the other end of the water outlet pipe (325) passes through the rear side of the cover body (331) and the top of the thermal insulation water tank (322), and extends into the interior of the thermal insulation water tank (322).

10. The integrated production device for efficiently regenerating spandex yarn from spandex waste according to claim 1, characterized in that: A water collecting box (321) is arranged on the top of the base (1), and the water collecting box (321) is arranged at the bottom of the spray rack (323). A recovery box (34) is arranged on the top of the base (1), and the recovery box (34) is arranged below the discharge port of the conveyor belt (3).

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