CN114703623A

CN114703623A - Cloth scutching and squeezing system

Info

Publication number: CN114703623A
Application number: CN202210314859.4A
Authority: CN
Inventors: 沈波; 朱飞琴
Original assignee: Hangzhou Linbo Sand Washing Co ltd
Current assignee: Hangzhou Linbo Sand Washing Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-07-05
Anticipated expiration: 2042-03-28
Also published as: CN114703623B

Abstract

The utility model relates to a cloth scutching and squeezing system, it includes frame, mangle roller, backing roll, whole platform, actuating mechanism, water spray mechanism and leveling mechanism, whole platform is located the frame top, the backing roll level rotate connect in the one end of whole platform, just the backing roll top is not leveling platform top portion is flat mutually, mangle roller level rotate connect in leveling platform top portion, the mangle roller is located directly over the backing roll and the axial with the backing roll is the same, leveling mechanism locates whole platform top portion is used for carrying out the flattening to the cloth at whole platform top, actuating mechanism is used for ordering about the backing roll rotates, water spray mechanism is used for spraying water to the cloth at leveling platform. This application has the effect of avoiding taking place the fold after the cloth mangles.

Description

Cloth scutching and squeezing system

Technical Field

The application relates to the technical field of textile machinery equipment, in particular to a cloth scutching and squeezing system.

Background

In the production process of the cloth, after the cloth is woven, dyeing process treatment is carried out, after the cloth is treated in the dyeing process, a large amount of residual dye and dyeing assistant which are not absorbed after dyeing are remained on the cloth surface, and a large amount of water is consumed for cleaning. Therefore, it is necessary to carry out a squeezing process on the fabric, and to remove water from the fabric and then to carry out a recovery process.

The invention discloses a cloth rolling mill with a water liquid collecting device, which comprises a roller and a horizontal roller, wherein two ends of the roller are hinged to the upper parts of two vertical supporting plates of a rack, the lower parts of the two vertical supporting plates are provided with a moving through groove, bottom supporting plates are fixed on two sides of the bottom surface of a bottom plate of the rack, a bottom placing plate is fixed on the bottom surface of the bottom supporting plate, a plurality of bottom springs are fixed in the middle of the bottom placing plate, a collecting box supporting plate is fixed on the top surfaces of the bottom springs, a water liquid collecting box is placed on the collecting box supporting plate, two side walls of the water liquid collecting box are provided with convex blocks, vertical push rods are fixed on the bottom surfaces of a left connecting plate and a regulating plate, and the rolled water liquid can be collected through the water liquid collecting box.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: in the process of fabric rolling, the fabric is made to pass through the space between the roller and the horizontal roller, and when the fabric is not completely flattened between the roller and the horizontal roller, the fabric after rolling is prone to wrinkling, and the product quality is affected.

Disclosure of Invention

In order to avoid the cloth after the mangling to take place the fold, this application provides a cloth scutching system.

The application provides a cloth scutching mangle system adopts following technical scheme:

the utility model provides a cloth open width mangle system, includes frame, mangle roller, backing roll, whole platform, actuating mechanism, water spray mechanism and leveling mechanism, whole platform is located the frame top, the backing roll level rotate connect in the one end of whole platform, just the backing roll top with leveling bench top portion is flat mutually, the mangle roller level rotate connect in leveling bench top portion, the mangle roller is located directly over the backing roll and the axial with the backing roll is the same, leveling mechanism locates whole platform top is used for carrying out the flattening to the cloth at whole platform top, actuating mechanism is used for ordering about the backing roll rotates, water spray mechanism is used for spraying water to the cloth at leveling bench.

Through adopting above-mentioned technical scheme, when carrying out the mangling technology to the cloth, through laying the cloth on the flattening platform, make the cloth pass between mangle roller and the backing roll, spray water to the cloth surface through water spray mechanism, carry out the flattening with the cloth on the flattening platform through the flattening mechanism, make the even entering of cloth between mangle roller and the backing roll, order about the pivoted in-process of backing roll through actuating mechanism, carry out the extrusion between mangle roller and the backing roll and make the moisture in the cloth extruded, mangle again after can flattening the cloth through the flattening mechanism that sets up, so the cloth is after the mangle is accomplished, can avoid the cloth to take place the fold and influence product quality.

Optionally, leveling mechanism includes support, two change rollers, brush hair, first universal shaft coupling and driving piece, the support is located leveling bench top, two change the roller rotate connect in the support bottom, the axial of changeing the roller is greater than 0 and is less than 90 with the contained angle between the cloth feeding direction, first universal shaft coupling is used for connecting two change the pivot of roller, two change the roller one end that is close to each other and keep away from the backing roll, brush hair evenly distributed in change the lateral wall of roller, brush hair and leveling bench top butt, the driving piece is used for ordering about change the roller and rotate.

Through adopting above-mentioned technical scheme, carry out the mangling work to the cloth, when the cloth is on the leveling platform, make the cloth pass and change roller bottom, order about a commentaries on classics roller through the driving piece and rotate, under the effect of first universal shaft coupling, make two change the synchronous rotations of roller, because the contained angle with the direction of feed of changeing the roller is greater than 0 and is less than 90, and then at change roller pivoted in-process, make the brush hair on the commentaries on classics roller carry out the flattening to the cloth, make the smooth laying of cloth on the leveling platform, and then make the smooth entering of cloth between mangle roller and the backing roll.

Optionally, the driving piece includes chain, sprocket, drive shaft and second universal joint, the drive shaft rotate connect in one side of support, the axial of drive shaft with the axial of backing roll is the same, second universal joint is used for connecting drive shaft and one the pivot of commentaries on classics roller, the sprocket is coaxial respectively to be located in the drive shaft and the one end of backing roll, the chain around establish with on the sprocket.

Through adopting above-mentioned technical scheme, when carrying out the squezzing to the cloth, when ordering about backing roll pivoted through actuating mechanism, under the effect of chain sprocket, make the drive shaft rotate along with the backing roll is synchronous, under second universal joint's effect, make to change the roller and rotate along with the drive shaft is synchronous, reach the drive effect to changeing the roller, realize adopting actuating mechanism to drive the back shaft simultaneously and change the roller and rotate, avoid addding too much power supply and increase the energy consumption, and then the effectual energy resource consumption that has reduced.

Optionally, the mangling roll includes mangling axle and tube-shape air bag, tube-shape air bag is coaxial to be located on the mangling axle, the one end tip of mangling axle is equipped with the inlet port, inlet port department is equipped with admission valve and discharge valve, the admission valve is used for communicating with the air supply, the inlet port extends to one end in the mangling axle with the tube-shape air bag communicates with each other.

Through adopting above-mentioned technical scheme, when carrying out the mangling to the cloth, pass the back between backing roll and the mangle roller with the cloth, aerify in the gasbag bag through opening the admission valve for the gasbag bag aerifys the inflation and expands and compress tightly the cloth between backing roll and mangle roller, extrudees the cloth through the gasbag bag, makes the pressurized of cloth more even, improves the mangle effect of cloth.

Optionally, tube-shape air-bag includes rubber ring and the bag body, the rubber ring is located respectively the both ends of the bag body, be equipped with the caulking groove on the squeezing axle, the rubber ring is located in the caulking groove.

Through adopting above-mentioned technical scheme, inlay the rubber ring of air-bag and establish and fix the air-bag in the caulking groove, avoid the air-bag to remove at the in-process that expands or shrink on the axis of squeezing water, not only improve the fixed effect to the air-bag to still effectively improve the sealing performance of air-bag.

Optionally, the water spray mechanism includes a water spray pipe, a plurality of left sprayers and a right sprayer, the water spray pipe is horizontally arranged at the top of the whole platform, the left sprayer is uniformly distributed on the side wall from the center to one end of the water spray pipe along the axial direction of the water spray pipe, the right sprayer is uniformly distributed on the side wall from the center to the other end of the water spray pipe along the axial direction of the water spray pipe, the nozzle of the left sprayer inclines to the left, the nozzle of the right sprayer inclines to the right, and the left sprayer and the right sprayer both face the whole platform.

Lay the cloth back on whole platform through adopting above-mentioned technical scheme, at first carry water through the spray pipe, spray water to the cloth surface through left shower nozzle and right shower nozzle, set up through the nozzle slope of left shower nozzle and right shower nozzle for the in-process of left shower nozzle and right shower nozzle water spray makes the cloth fully expand under the effect of rivers, further avoids the cloth to take place the fold and influence the waterlogging effect.

Optionally, baffles are arranged on two sides of the leveling platform, a water collecting tank is arranged at one end, far away from the supporting roller, of the top of the leveling platform, a collecting box is arranged at the bottom of the leveling platform, and the water collecting tank is communicated with the inside of the collecting box.

Through adopting above-mentioned technical scheme, when spraying water to the cloth through water spray mechanism, play through the baffle and block the effect to rivers, avoid water to flow from flattening platform both sides and pollute the surrounding environment, collect in the collection box that flows into again after the unnecessary moisture of water spray in-process collects through the water catch bowl, reach the collection effect to wasing back sewage, avoid sewage to influence the surrounding environment.

Optionally, a plurality of diversion trenches are arranged at the top of the leveling platform at one side of the water collecting tank close to the supporting roller, the length direction of each diversion trench is perpendicular to the axial direction of the supporting roller, and the diversion trenches are distributed along the length direction of the water collecting tank.

Through adopting above-mentioned technical scheme, when carrying out water spray cleaning to the cloth, the guiding gutter through setting up is convenient with unnecessary water conservancy diversion to the water catch bowl in, and then conveniently collects unnecessary water.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the cloth is laid on the leveling mechanism, the cloth can be leveled and then dewatered by the leveling mechanism before entering a space between the dewatering roll and the supporting roll for dewatering smoothly, so that the cloth can be prevented from wrinkling to influence the product quality after dewatering is finished;

2. the water squeezing roller comprises the water squeezing shaft and the cylindrical air bag, the air bag is inflated to expand to press the cloth between the support roller and the water squeezing roller, and the cloth is extruded by the air bag, so that the cloth is more uniformly pressed, and the water squeezing effect of the cloth is improved;

3. through setting up water spray mechanism and including spray pipe, a plurality of left shower nozzle and right shower nozzle, the nozzle slope through left shower nozzle and right shower nozzle sets up for the in-process of left shower nozzle and right shower nozzle water spray, under the effect of rivers, make the cloth fully expand, further avoid the cloth to take place the fold and influence the effect of squeezing water.

Drawings

Fig. 1 is a schematic structural diagram of a cloth scutching and squeezing system according to an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a perspective sectional view of a cloth scutching and squeezing system according to an embodiment of the present application.

Fig. 4 is an enlarged schematic view of a portion B in fig. 3.

Reference numerals: 1. a frame; 2. a water squeezing roller; 21. a water rolling shaft; 211. an air inlet; 212. an intake valve; 213. an exhaust valve; 214. caulking grooves; 22. a cylindrical air bag; 221. a rubber ring; 222. a bag body; 3. a support roll; 4. leveling the platform; 41. a baffle plate; 42. a water collection tank; 43. a collection box; 44. a diversion trench; 5. a drive mechanism; 6. a water spraying mechanism; 61. a water spray pipe; 62. a left spray head; 63. a right nozzle; 7. a leveling mechanism; 71. a support; 72. rotating the roller; 73. brushing; 74. a first universal coupling; 75. a drive member; 751. a chain; 752. a sprocket; 753. a drive shaft; 754. and a second universal coupling.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a cloth scutching and squeezing system. Referring to fig. 1, the water squeezing system comprises a frame 1, a water squeezing roller 2, a support roller 3, a leveling platform 4, a driving mechanism 5, a water spraying mechanism 6 and a leveling mechanism 7, wherein the leveling platform 4 is horizontally and integrally connected to the top of the frame 1, the support roller 3 is horizontally and rotatably connected to one end of the leveling platform 4, the support roller 3 can rotate around the axis of the support roller 3, the axial direction of the support roller 3 is along the side length direction of the leveling platform 4, the top of the support roller 3 is parallel to the top of the leveling platform 4, the water squeezing roller 2 is horizontally and rotatably connected to the top of the leveling platform 4, the water squeezing roller 2 is positioned right above the support roller 3 and is the same as the axial direction of the support roller 3, the driving mechanism 5 is used for driving the support roller 3 to rotate, the driving mechanism 5 is specifically a motor, a casing of the motor is fixed on the frame 1 through bolts, an output shaft of the motor is coaxially and fixedly connected with a rotating shaft of the support roller 3, when the cloth is squeezed, the cloth passes through the support roller 3 and the water squeezing roller 2, the motor drives the supporting roller 3 to rotate, and in the rotating process of the supporting roller 3, the cloth is mangled by the supporting roller 3 and the mangling roller 2.

Referring to fig. 1 and 2, the leveling mechanism 7 is mounted on the top of the leveling platform 4 for leveling the cloth on the top of the leveling platform 4, the leveling mechanism 7 includes a support 71, two rotating rollers 72, bristles 73, a first universal coupling 74 and a driving element 75, the support 71 is welded on the top of the leveling platform 4, the length direction of the support 71 is perpendicular to the feeding direction, the two rotating rollers 72 are rotatably connected to the bottom of the support 71 and respectively located at two ends therebetween, the rotating rollers 72 can rotate around their axes, an included angle between the axial direction of the rotating rollers 72 and the feeding direction of the cloth is greater than 0 ° and less than 90 °, an included angle between the axial direction of the rotating rollers 72 and the feeding direction of the cloth can be 30 °, 40 ° or 60 °, etc., where the leveling of the cloth can be achieved, in this embodiment, an included angle between the axial direction of the rotating rollers 72 and the feeding direction of the cloth is 60 °, the first universal coupling 74 is used for connecting rotating shafts of the two rotating rollers 72, two ends of the first universal coupler 74 are coaxially and rotatably connected with the rotating shafts of the rotating rollers 72, one ends, close to each other, of the two rotating rollers 72 are far away from the supporting roller 3, the bristles 73 are uniformly distributed on the side walls of the rotating rollers 72, the bristles 73 are adhered to the side walls of the rotating rollers 72, and the bristles 73 are abutted to the top of the leveling table 4; in the process of cloth squezzing, when the cloth passes and changes roller 72 below, in order to order about and change roller 72 pivoted in-process, can order about the cloth to both sides and keep away from the one end of backing roll 3 and fully expand for the cloth is smooth to get into between backing roll 3 and the squezzing roller 2, and then takes place the fold after avoiding the cloth squezzing.

Referring to fig. 1 and 2, a driving member 75 is used to drive the rotation of the roller 72. The driving member 75 comprises a chain 751, a sprocket 752, a driving shaft 753 and a second universal coupling 754, the driving shaft 753 is rotatably connected to one side of the bracket 71, the driving shaft 753 can rotate around the axis of the driving shaft 753, the axial direction of the driving shaft 753 is the same as the axial direction of the supporting roller 3, the second universal coupling 754 is used for connecting the driving shaft 753 with the rotating shaft of the rotating roller 72, one end of the second universal coupling 754 is coaxially and fixedly connected with the driving shaft 753, the other end of the second universal coupling 754 is coaxially and fixedly connected with one end of the rotating roller 72, which is far away from the first universal coupling 74, the sprocket 752 is coaxially welded on the driving shaft 753 and one end of the supporting roller 3 respectively, the chain 751 is wound on the sprocket 752, the driving mechanism 5 drives the supporting roller 751 and the sprocket 752 to rotate, simultaneously, the driving shaft 753 and the supporting roller 752 synchronously rotate, and further drives the rotating roller 72 to level the cloth on the entire platform 4, so that the cloth smoothly enters between the supporting roller 3 and the water squeezing roller 2 for water squeezing.

Referring to fig. 3 and 4, the mangling roll 2 comprises a mangling shaft 21 and a cylindrical airbag 22, the mangling shaft 21 is horizontally and rotatably connected to the platform 4, the cylindrical airbag 22 is coaxially sleeved on the mangling shaft 21, an air inlet 211 is formed in one end of the mangling shaft 21, an air inlet valve 212 and an air outlet valve 213 are installed at the air inlet 211, the air inlet valve 212 is communicated with an air source, and one end of the air inlet 211 extending into the mangling shaft 21 is communicated with the cylindrical airbag 22; after the cloth penetrates between the supporting roller 3 and the squeezing roller 2, the cylindrical air bag 22 is inflated and expanded through the air inlet valve 212, and the cloth is extruded through the cylindrical air bag 22, so that the cloth is more uniformly pressed, and the squeezing effect of the cloth is improved. The tubular airbag 22 comprises a rubber ring 221 and a bag body 222, wherein the rubber ring 221 is respectively and integrally connected to two ends of the bag body 222, an annular caulking groove 214 matched with the rubber ring 221 is formed in the water rolling shaft 21, the rubber ring 221 is embedded in the caulking groove 214, the tubular airbag 22 is fixed in the caulking groove 214 through the embedding of the rubber ring 221, and the tubular airbag 22 is prevented from moving on the water rolling shaft 21 in the expansion or contraction process to influence the water rolling effect.

Referring to fig. 1, the water spraying mechanism 6 is used for spraying water to the cloth on the leveling platform 4, the water spraying mechanism 6 includes a water spraying pipe 61, a plurality of left spray heads 62 and a right spray head 63, the water spraying pipe 61 is horizontally and fixedly installed on the top of the leveling platform 4, the water spraying pipe 61 is located on one side of the leveling mechanism 7 away from the supporting roller 3, one end of the water spraying pipe 61 is closed, one end of the water spraying pipe 61 is communicated with a water source, the left spray heads 62 are evenly distributed on the side wall from the center to one end of the water spraying pipe 61 along the axial direction of the water spraying pipe 61, the right spray heads 63 are evenly distributed on the side wall from the center to the other end of the water spraying pipe 61 along the axial direction of the water spraying pipe 61, the nozzles of the left spray heads 62 are inclined to the left, the nozzles of the right spray heads 63 are inclined to the right, the left spray heads 62 and the right spray heads 63 are both facing the leveling platform 4, in the process of spraying water to the cloth, under the effect of rivers for the cloth fully expandes, further avoids the cloth to take place the fold and influence the mangling effect. The two sides of the leveling platform 4 are respectively welded with a baffle plate 41, one end of the top of the leveling platform 4, which is far away from the supporting roller 3, is provided with a water collecting tank 42, the length direction of the water collecting tank 42 is along the axial direction of the water spraying pipe 61, the bottom of the leveling platform 4 is welded with a collecting box 43, the water collecting tank 42 is communicated with the inside of the collecting box 43, and the bottom of the collecting box 43 is provided with a water outlet; a plurality of guiding gutters 44 are arranged at the top of the flat platform 4 on one side, close to the supporting roller 3, of the water collecting groove 42, the length direction of the guiding gutters 44 is perpendicular to the axial direction of the supporting roller 3, the guiding gutters 44 are distributed along the length direction of the water collecting groove 42, redundant water is conveniently guided into the water collecting groove 42, and then the redundant water is conveniently collected.

The implementation principle of a cloth scutching and squeezing system in the embodiment of the application is as follows: when the cloth is subjected to squeezing, one end of the cloth is laid on the whole platform 4, the end of the cloth extends into a position between the supporting roller 3 and the squeezing roller 2, the cloth is extruded by inflating and expanding the cylindrical air bag 22 through the air inlet valve 212, the water spraying mechanism 6 is started to spray water to the cloth, the driving mechanism 5 drives the supporting roller 3 to rotate, the cloth slowly advances, in the moving process of the cloth, the two rotating rollers 72 rotate under the transmission effect of the chain wheel and the chain 751, in the rotating process of the rotating rollers 72, the brushes on the rotating rollers 72 enable the cloth to be shifted towards the rear parts of two sides, the cloth is enabled to be completely unfolded on the leveling platform 4, the cloth is enabled to enter the position between the supporting roller 3 and the squeezing roller 2 for squeezing, and the phenomenon that the product quality is affected by wrinkles after the cloth is squeezed is avoided.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a cloth scutching squeezing system which characterized in that: comprises a frame (1), a squeezing roller (2), a supporting roller (3), a leveling platform (4), a driving mechanism (5), a water spraying mechanism (6) and a leveling mechanism (7), the leveling platform (4) is arranged at the top of the frame (1), the supporting roller (3) is horizontally and rotatably connected with one end of the leveling platform (4), and the top of the supporting roller (3) is level with the top of the leveling platform (4), the water squeezing roller (2) is horizontally and rotatably connected with the top of the leveling platform (4), the water squeezing roller (2) is positioned right above the supporting roller (3) and is the same as the axial direction of the supporting roller (3), the leveling mechanism (7) is arranged at the top of the leveling platform (4) and is used for leveling the cloth at the top of the leveling platform (4), the driving mechanism (5) is used for driving the supporting roll (3) to rotate, and the water spraying mechanism (6) is used for spraying water to the cloth on the flat platform (4).

2. The cloth scutching and squeezing system according to claim 1, characterized in that: leveling mechanism (7) include support (71), two change roller (72), brush hair (73), first universal shaft coupling (74) and driving piece (75), support (71) are located leveling platform (4) top, two change roller (72) rotate connect in support (71) bottom, the contained angle between the axial of changeing roller (72) and the cloth direction of feed is greater than 0 and is less than 90, first universal shaft coupling (74) are used for connecting two change the pivot of roller (72), two change the one end that roller (72) are close to each other and keep away from backup roll (3), brush hair (73) evenly distributed in change the lateral wall of roller (72), brush hair (73) and leveling platform (4) top butt, driving piece (75) are used for ordering about change roller (72) and rotate.

3. The cloth scutching and squeezing system according to claim 2, characterized in that: the driving piece (75) comprises a chain (751), a chain wheel (752), a driving shaft (753) and a second universal coupling (754), the driving shaft (753) is rotatably connected to one side of the support (71), the axial direction of the driving shaft (753) is identical to the axial direction of the supporting roller (3), the second universal coupling (754) is used for connecting the driving shaft (753) with a rotating shaft of the rotating roller (72), the chain wheel (752) is coaxially arranged on the driving shaft (753) and one end of the supporting roller (3), and the chain (751) is wound on the chain wheel (752).

4. The cloth scutching and squeezing system according to claim 1, characterized in that: mangle roll (2) are including mangle axle (21) and tube-shape air bag (22), tube-shape air bag (22) are coaxial to be located on mangle axle (21), the one end tip of mangle axle (21) is equipped with inlet port (211), inlet port (211) department is equipped with admission valve (212) and discharge valve (213), admission valve (212) are used for communicating with the air supply, inlet port (211) extend to one end in mangle axle (21) with tube-shape air bag (22) communicate with each other.

5. The cloth scutching and squeezing system according to claim 4, characterized in that: tube-shape air bag (22) include rubber ring (221) and bag body (222), rubber ring (221) are located respectively the both ends of bag body (222), be equipped with caulking groove (214) on mangle axle (21), rubber ring (221) are located in caulking groove (214).

6. The cloth scutching and squeezing system according to claim 1, characterized in that: the water spraying mechanism (6) comprises a water spraying pipe (61), a plurality of left spray heads (62) and right spray heads (63), wherein the water spraying pipe (61) is horizontally arranged at the top of the whole platform (4), the left spray heads (62) are uniformly distributed on the side wall from the center to one end of the water spraying pipe (61) along the axial direction of the water spraying pipe (61), the right spray heads (63) are uniformly distributed on the side wall from the center to the other end of the water spraying pipe (61) along the axial direction of the water spraying pipe (61), the nozzles of the left spray heads (62) incline leftwards, the nozzles of the right spray heads (63) incline rightwards, and the left spray heads (62) and the right spray heads (63) all face the whole platform (4).

7. The cloth scutching and squeezing system according to claim 1, characterized in that: both sides of the leveling platform (4) are provided with baffle plates (41), one end of the top of the leveling platform (4), which is far away from the supporting roller (3), is provided with a water collecting tank (42), the bottom of the leveling platform (4) is provided with a collecting box (43), and the water collecting tank (42) is communicated with the inside of the collecting box (43).

8. The cloth scutching wringing system of claim 7, wherein: the top of the whole platform (4) on one side of the water collecting tank (42) close to the supporting roller (3) is provided with a plurality of guide grooves (44), the length direction of the guide grooves (44) is vertical to the axial direction of the supporting roller (3), and the guide grooves (44) are distributed along the length direction of the water collecting tank (42).