1. The spraying cooling device for the packaging film comprises a cooling box (1) and is characterized in that a first guide roller (2) is arranged on the right side of the interior of the cooling box (1), a second guide roller (3) is arranged above the left of the first guide roller (2), a third guide roller (4) is arranged below the left of the second guide roller (3), a fourth guide roller (5) is arranged above the left of the third guide roller (4), a fifth guide roller (6) is arranged below the left of the fourth guide roller (5), a sixth guide roller (7) is arranged above the left of the fifth guide roller (6), a seventh guide roller (8) is arranged below the left of the sixth guide roller (7), an eighth guide roller (9) is arranged above the left of the seventh guide roller (8), a ninth guide roller (10) is arranged below the left of the eighth guide roller (9), the outer surfaces of the first guide roller (2), the second guide roller (3), the third guide roller (4), the fourth guide roller (5), the fifth guide roller (6), the sixth guide roller (7), the seventh guide roller (8), the eighth guide roller (9) and the ninth guide roller (10) are sequentially conveyed with a packaging film (11), a water tank (12) is arranged on the inner wall of the bottom of the cooling box (1), a V-shaped support plate (13) is fixedly arranged right above the water tank (12), the outer surfaces of the periphery of the V-shaped support plate (13) are respectively and fixedly connected with the inner walls of the periphery of the cooling box (1), a first water supply pipe preformed hole (14) is formed in the middle of the V-shaped support plate (13), a first water pump (15) is arranged on the inner wall of the bottom of the water tank (12), and a first water supply pipe (16) is fixedly connected with the water outlet end of the first water pump (15), the first water supply pipe (16) penetrates through the first water supply pipe preformed hole (14) and extends to the upper side of the V-shaped support plate (13), the top of the first water supply pipe (16) is communicated with the second water supply pipe (17), two obliquely installed third water supply pipes (18) are communicated with two sides of the top of the second water supply pipe (17), one ends, far away from the second water supply pipe (17), of the two third water supply pipes (18) are communicated with two obliquely arranged fourth water supply pipes (19), the two fourth water supply pipes (19) are symmetrically distributed on the lower surface of the packaging film (11), one side, close to the packaging film (11), of the fourth water supply pipes (19) is provided with a plurality of uniformly arranged first spray heads (20), a second water pump (21) is arranged right behind the first water pump (15), and a water outlet of the second water pump (21) is fixedly connected with a fifth L-shaped water supply pipe (22), the other end of the fifth L-shaped water supply pipe (22) penetrates through the rear wall of the water tank (12) and is communicated with a sixth water supply pipe (23), the sixth water supply pipe (23) extends into the water tank (12), the two sides of the sixth water supply pipe (23) are communicated with seventh water supply pipes (24), one ends, far away from the sixth water supply pipe (23), of the two seventh water supply pipes (24) are communicated with two eighth water supply pipes (25) which are obliquely arranged, the two eighth water supply pipes (25) are symmetrically distributed on the upper surface of the packaging film (11), one side, close to the packaging film (11), of the eighth water supply pipes (25) is provided with a plurality of second spray heads (26) which are uniformly arranged, air inlet pipelines (27) are arranged between the sixth guide roller (7) and the adjacent fourth guide roller (5) and eighth guide roller (9), and the two sides of the air inlet pipelines (27) are communicated with first air outlet pipes (28), one end intercommunication that air-supply line (27) were kept away from to two first tuber pipes (28) has second tuber pipe (29) that the slope set up, one side that second tuber pipe (29) is close to packaging film (11) is provided with a plurality of evenly distributed's exhaust hood (30), the equal fixedly connected with in surface of sixth guide roll (7) and eighth guide roll (9) sponge (31) that absorb water, all be provided with cam (32) under sixth guide roll (7) and eighth guide roll (9), one side fixed cover that camshaft (33) were kept away from to cam (32) surface is equipped with clamp plate (34), and clamp plate (34) keep the unanimity with the length of sixth guide roll (7) and eighth guide roll (9).

2. The spraying cooling device for the packaging film according to claim 1, wherein the left side and the right side of the cooling box (1) are respectively provided with a packaging film outlet (35) and a packaging film inlet (36).

3. The spray cooling device for packaging films as claimed in claim 1, characterized in that a first support bar (37) is fixedly connected between the outer surface of one side of the two obliquely mounted third water supply pipes (18) adjacent to each other and the upper surface of the second water supply pipe (17).

4. The spray cooling device for the packaging film as claimed in claim 1, wherein a second support bar (38) is fixedly connected to the upper surfaces of the sixth water supply pipe (23) and the two air inlet ducts (27), and the top of the second support bar (38) is fixedly connected to the inner wall of the top of the cooling box (1).

5. The spraying and cooling device for the packaging film is characterized in that the heights of the second guide roller (3), the fourth guide roller (5), the sixth guide roller (7) and the eighth guide roller (9) are consistent, and the heights of the third guide roller (4), the fifth guide roller (6) and the seventh guide roller (8) are consistent.

6. The spraying and cooling device for the packaging film is characterized in that the second guide roller (3) and the fourth guide roller (5) are symmetrically distributed on two sides of the third guide roller (4), the fourth guide roller (5) and the sixth guide roller (7) are symmetrically distributed on two sides of the fifth guide roller (6), and the sixth guide roller (7) and the eighth guide roller (9) are symmetrically distributed on two sides of the seventh guide roller (8).

7. The spray cooling device for packaging films as claimed in claim 1, characterized in that the first guide roller (2) and the ninth guide roller (10) have the same height.

8. The spraying cooling device for the packaging film according to claim 1, wherein a plurality of water flow holes (40) are further formed in the middle of the V-shaped supporting plate (13), a water flow pipe (41) is installed in each water flow hole (40), and the bottoms of the plurality of water flow pipes (41) extend into the water tank (12).

9. The spraying cooling device for the packaging film as claimed in claim 1, wherein a water inlet pipe (41) is communicated with the left side of the water tank (12), and a valve (42) is arranged on the water inlet pipe (41).

10. The spraying and cooling device for the packaging film as claimed in claim 1, wherein a cam shaft (33) is fixedly connected in the axis of the cam (32), and the cam shaft (33) penetrates through the rear wall of the cooling box (1) and is fixedly connected to the output end of the driving motor.

Background

The packaging film is mainly extruded by the resin mixture of several kinds of different brands and is formed, anti puncture has, the super strength high performance, to stacking the goods on the layer board winding packing, make the packing material more firm clean and tidy, superstrong waterproof effect, by wide use, trade the export outside, papermaking, five metals, plastics chemical industry, the building materials, food and medicine industry, when using the packaging film to pack article, the staff need cut the packaging film of lapping earlier, can produce high temperature among the cutting process of packaging film, in order to avoid the packaging film to take place to warp because of the high temperature, need cool down the operation to the packaging film in cutting process, thereby improve the quality after the packaging film cutting, avoid the waste of raw materials.

The existing cooling device is generally only simple to carry out water spray cooling treatment on the upper surface of the packaging film, and the lower surface does not carry out water spray cooling, so that the cooling effect is unsatisfactory, the surface of the packaging film after water spray can be very wet, the existing cooling device does not carry out rolling after the packaging film is treated, and the quality of the packaging film is influenced by accumulated water in the rolled packaging film.

Disclosure of Invention

The invention aims to provide a spraying cooling device for a packaging film, which solves the problems in the background art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a spraying cooling device for packaging films comprises a cooling box, wherein a first guide roller is arranged on the right side in the cooling box, a second guide roller is arranged above the left side of the first guide roller, a third guide roller is arranged below the left side of the second guide roller, a fourth guide roller is arranged above the left side of the third guide roller, a fifth guide roller is arranged below the left side of the fourth guide roller, a sixth guide roller is arranged above the left side of the fifth guide roller, a seventh guide roller is arranged below the left side of the sixth guide roller, an eighth guide roller is arranged above the left side of the seventh guide roller, a ninth guide roller is arranged below the left side of the eighth guide roller, and packaging films are sequentially conveyed on the outer surfaces of the first guide roller, the second guide roller, the third guide roller, the fourth guide roller, the fifth guide roller, the sixth guide roller, the seventh guide roller, the eighth guide roller and the ninth guide roller, the cooling box is characterized in that a water tank is arranged on the inner wall of the bottom of the cooling box, a V-shaped support plate is fixedly arranged right above the water tank, the peripheral outer surface of the V-shaped support plate is fixedly connected with the peripheral inner wall of the cooling box respectively, a first water supply pipe preformed hole is formed in the middle of the V-shaped support plate, a first water pump is arranged on the inner wall of the bottom of the water tank, a first water supply pipe is fixedly connected with the water outlet end of the first water pump, the first water supply pipe penetrates through the first water supply pipe preformed hole and extends to the position above the V-shaped support plate, the top of the first water supply pipe is communicated with a second water supply pipe, two obliquely arranged third water supply pipes are communicated with two obliquely arranged two sides of the top of the second water supply pipe, one ends of the two third water supply pipes, which are far away from the second water supply pipe, are communicated with two obliquely arranged fourth water supply pipes, and the two fourth water supply pipes are symmetrically distributed on the lower surface of the packaging film, a plurality of first spray heads which are uniformly arranged are arranged on one side of the fourth water supply pipe close to the packaging film, a second water pump is arranged right behind the first water pump, a fifth L-shaped water supply pipe is fixedly connected with the water outlet end of the second water pump, the other end of the fifth L-shaped water supply pipe penetrates through the rear wall of the water tank and is communicated with a sixth water supply pipe, the sixth water supply pipe extends into the water tank, seventh water supply pipes are communicated with two sides of the sixth water supply pipe, one ends of the two seventh water supply pipes, which are far away from the sixth water supply pipe, are communicated with two eighth water supply pipes which are obliquely arranged, the two eighth water supply pipes are symmetrically distributed on the upper surface of the packaging film, a plurality of second spray heads which are uniformly arranged are arranged on one side of the eighth water supply pipe close to the packaging film, air inlet pipelines are arranged between the sixth guide roller and the adjacent fourth guide roller and eighth guide roller, and first air outlet pipes are communicated with two sides of the air inlet pipelines, the one end intercommunication that the air-supply line was kept away from to two first play tuber pipes has the second play tuber pipe that the slope set up, one side that the second goes out the tuber pipe and is close to the packaging film is provided with a plurality of evenly distributed's exhaust hood, the equal fixedly connected with sponge that absorbs water of surface of sixth guide roll and eighth guide roll, all be provided with the cam under sixth guide roll and the eighth guide roll, the fixed cover in one side that the camshaft was kept away from to the cam surface is equipped with the clamp plate, and the clamp plate keeps unanimous with the length of sixth guide roll and eighth guide roll.

Furthermore, a packaging film outlet and a packaging film inlet are respectively formed in the left side and the right side of the cooling box.

Furthermore, a first support rod is fixedly connected between the outer surface of one side, close to each other, of the two obliquely installed third water supply pipes and the upper surface of the second water supply pipe.

Furthermore, the heights of the second guide roller, the fourth guide roller, the sixth guide roller and the eighth guide roller are consistent, and the heights of the third guide roller, the fifth guide roller and the seventh guide roller are consistent.

Further, the second guide roller and the fourth guide roller are symmetrically distributed on two sides of the third guide roller, the fourth guide roller and the sixth guide roller are symmetrically distributed on two sides of the fifth guide roller, and the sixth guide roller and the eighth guide roller are symmetrically distributed on two sides of the seventh guide roller.

Further, the heights of the first guide roller and the ninth guide roller are consistent.

Furthermore, a plurality of water flowing holes are formed in the middle of the V-shaped supporting plate, water flowing pipes are installed in the water flowing holes, and the bottoms of the water flowing pipes extend into the water tank.

Furthermore, the left side intercommunication of water tank has the inlet tube, and is provided with the valve on the inlet tube.

Furthermore, a cam shaft is fixedly connected in the cam shaft core, penetrates through the rear wall of the cooling box and is fixedly connected to the output end of the driving motor.

Compared with the prior art, the invention has the beneficial effects that:

the second guide roller, the third guide roller and the fourth guide roller of the invention are sequentially formed into a V shape, so that the packaging film conveyed on the outer surfaces of the three guide rollers is also in a V shape, thereby increasing the conveying time of the packaging film in the cooling box on one hand, improving the time of water spraying and cooling, and being beneficial to water flowing down from the surface of the packaging film on the other hand, as the upper surface and the lower surface of the packaging film are respectively provided with a plurality of first spray heads and second spray heads, the plurality of first spray heads and the second spray heads can continuously spray water and cool the upper surface and the lower surface of the packaging film simultaneously, the cooling effect is obviously improved, as a plurality of exhaust hoods are arranged among the fourth guide roller, the fifth guide roller, the sixth guide roller, the seventh guide roller and the eighth guide roller, the air exhausted by the exhaust hoods can perform secondary air drying treatment on the lower surface of the wet packaging film, the sponge that absorbs water that sixth guide roll and eighth guide roll outside cover were established can be continuous absorbs water to the lower surface of packaging film to sustainable carry out the secondary to the packaging film lower surface and absorb water the processing, driving motor drives the cam and rotates, and the clamp plate that the fixed cover in the cam outside was established can be continuous extrudees the sponge that absorbs water, makes its inside rivers go out to the V-arrangement backup pad.

Drawings

FIG. 1 is a schematic view of an internal structure of a cooling box of an embodiment of a spray cooling device for a packaging film according to the present invention;

FIG. 2 is a schematic view of a connection perspective structure of a cam and a pressing plate of an embodiment of a spray cooling device for a packaging film according to the present invention;

FIG. 3 is a schematic top view of a connection structure of a cam and a pressing plate of an embodiment of the spray cooling device for a packaging film according to the present invention;

FIG. 4 is a schematic view of a connection structure of a second water pump and a fifth L-shaped water supply pipe of an embodiment of the spray cooling device for packaging films according to the present invention;

FIG. 5 is a schematic perspective view of a V-shaped supporting plate of an embodiment of a spray cooling device for a packaging film according to the present invention;

FIG. 6 is a schematic side view of a V-shaped supporting plate of an embodiment of a spray cooling device for a packaging film according to the present invention;

FIG. 7 is a schematic structural view of part A of an embodiment of a spray cooling device for a packaging film according to the present invention;

fig. 8 is a schematic structural diagram of part B of an embodiment of a spray cooling device for a packaging film according to the present invention.

In the figure: 1 cooling box, 2 first guide roller, 3 second guide roller, 4 third guide roller, 5 fourth guide roller, 6 fifth guide roller, 7 sixth guide roller, 8 seventh guide roller, 9 eighth guide roller, 10 ninth guide roller, 11 packaging film, 12 water tank, 13V-shaped support plate, 14 first water supply pipe preformed hole, 15 first water pump, 16 first water supply pipe, 17 second water supply pipe, 18 third water supply pipe, 19 fourth water supply pipe, 20 first nozzle, 21 second water pump, 22 fifth L-shaped water supply pipe, 23 sixth water supply pipe, 24 seventh water supply pipe, 25 eighth water supply pipe, 26 second nozzle, 27 air inlet pipeline, 28 first air outlet pipe, 29 second air outlet pipe, 30 cover, 31 water absorption sponge, 32 cam, 33 cam shaft, 34 press plate, 35 packaging film outlet, 36 packaging film inlet, 37 first support rod, 38 second support rod, 39 water outlet, 40 water flow pipe, 41 water inlet pipe, 42 valve and 43 reinforcing rib.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 8, a spray cooling device for packaging films comprises a cooling box 1, wherein a first guide roller 2 is arranged on the right side in the cooling box 1, a second guide roller 3 is arranged above the left side of the first guide roller 2, a third guide roller 4 is arranged below the left side of the second guide roller 3, a fourth guide roller 5 is arranged above the left side of the third guide roller 4, a fifth guide roller 6 is arranged below the left side of the fourth guide roller 5, a sixth guide roller 7 is arranged above the left side of the fifth guide roller 6, a seventh guide roller 8 is arranged below the left side of the sixth guide roller 7, an eighth guide roller 9 is arranged above the left side of the seventh guide roller 8, a ninth guide roller 10 is arranged below the left side of the eighth guide roller 9, the first guide roller 2, the second guide roller 3, the third guide roller 4, the fourth guide roller 5, the fifth guide roller 6, the sixth guide roller 7, the seventh guide roller 8, The outer surfaces of the eighth guide roller 9 and the ninth guide roller 10 are sequentially conveyed with a packaging film 11, a water tank 12 is arranged on the inner wall of the bottom of the cooling box 1, a V-shaped support plate 13 is fixedly arranged right above the water tank 12, the outer surfaces of the periphery of the V-shaped support plate 13 are respectively fixedly connected with the inner walls of the periphery of the cooling box 1, a first water supply pipe reserved hole 14 is formed in the middle of the V-shaped support plate 13, a first water pump 15 is arranged on the inner wall of the bottom of the water tank 12, a first water supply pipe 16 is fixedly connected with the water outlet end of the first water pump 15, the first water supply pipe 16 penetrates through the first water supply pipe reserved hole 14 and extends to the upper part of the V-shaped support plate 13, the top of the first water supply pipe 16 is communicated with a second water supply pipe 17, two obliquely arranged third water supply pipes 18 are communicated with two sides of the top of the second water supply pipe 17, one ends, far away from the second water supply pipes 17, of the two third water supply pipes 18 are communicated with two obliquely arranged fourth water supply pipes 19, two fourth water supply pipes 19 are symmetrically distributed on the lower surface of the packaging film 11, one side of the fourth water supply pipe 19 close to the packaging film 11 is provided with five first spray heads 20 which are uniformly arranged, a second water pump 21 is arranged right behind the first water pump 15, a fifth L-shaped water supply pipe 22 is fixedly connected with the water outlet end of the second water pump 21, the other end of the fifth L-shaped water supply pipe 22 penetrates through the rear wall of the water tank 12 and is communicated with a sixth water supply pipe 23, the sixth water supply pipe 23 extends into the water tank 12, the two sides of the sixth water supply pipe 23 are communicated with seventh water supply pipes 24, one ends of the two seventh water supply pipes 24 far away from the sixth water supply pipe 23 are communicated with two eighth water supply pipes 25 which are obliquely arranged, the two eighth water supply pipes 25 are symmetrically distributed on the upper surface of the packaging film 11, one side of the eighth water supply pipes 25 close to the packaging film 11 is provided with five second spray heads 26 which are uniformly arranged, and the sixth guide roller 7 and the adjacent fourth guide roller 5, An air inlet pipeline 27 is arranged between the eighth guide rollers 9, the air inlet pipeline 27 is connected with an air outlet end of a fan (not shown in the figure) arranged outside the cooling box 1, two sides of the air inlet pipeline 27 are communicated with first air outlet pipes 28, one ends of the two first air outlet pipes 28 far away from the air inlet pipeline 27 are communicated with second air outlet pipes 29 which are obliquely arranged, one sides of the second air outlet pipes 29 close to the packaging film 11 are provided with five uniformly distributed exhaust hoods 30, the outer surfaces of the sixth guide roller 7 and the eighth guide roller 9 are fixedly connected with water absorption sponges 31, cams 32 are arranged under the sixth guide roller 7 and the eighth guide roller 9, one sides of the outer surfaces of the cams 32 far away from the cam shafts 33 are fixedly sleeved with pressure plates 34, reinforcing ribs 43 are fixedly arranged between the front and back surfaces of the cams 32 and the pressure plates 34, the reinforcing ribs 43 further enhance the connection firmness between the sixth guide roller 7 and the eighth guide roller 9, and the lengths of the pressure plates 34 and the sixth guide roller 7 and the eighth guide roller 9 are kept consistent, the heights of the second guide roller 3, the fourth guide roller 5, the sixth guide roller 7 and the eighth guide roller 9 are consistent, the heights of the third guide roller 4, the fifth guide roller 6 and the seventh guide roller 8 are consistent, the second guide roller 3 and the fourth guide roller 5 are symmetrically distributed on two sides of the third guide roller 4, the fourth guide roller 5 and the sixth guide roller 7 are symmetrically distributed on two sides of the fifth guide roller 6, the sixth guide roller 7 and the eighth guide roller 9 are symmetrically distributed on two sides of the seventh guide roller 8, and the heights of the first guide roller 2 and the ninth guide roller 10 are consistent.

In the above embodiment, the second guide roller 2, the third guide roller 3 and the fourth guide roller 4 are sequentially formed into a V shape, so that the packaging film 11 conveyed on the outer surfaces of the three guide rollers is also formed into a V shape, thereby on one hand, the conveying time of the packaging film 11 in the cooling box 1 is increased, the time for water spraying and cooling is also increased, on the other hand, water flows down from the surface of the packaging film 11, because the upper and lower surfaces of the packaging film 11 are respectively provided with the plurality of first spray heads 20 and the plurality of second spray heads 26, the plurality of first spray heads 20 and the plurality of second spray heads 26 can continuously and simultaneously perform water spraying and cooling treatment on the upper and lower surfaces of the packaging film 11, the cooling effect is remarkably improved, because the plurality of exhaust hoods 30 are respectively arranged among the fourth guide roller 5, the fifth guide roller 6, the sixth guide roller 7, the seventh guide roller 8 and the eighth guide roller 9, carry out the secondary air-dry processing to the 11 lower surfaces of wet packaging film through exhaust hood 30 exhaust wind, the sponge 31 that absorbs water that sixth guide roll 7 and eighth guide roll 9 outside cover were established can be continuous absorbs water to the lower surface of packaging film 11, thereby sustainable carry out the secondary to the 11 lower surfaces of packaging film and absorb water and handle, driving motor drives cam 32 and rotates, the fixed clamp plate 34 of establishing of cover in the cam 32 outside can be continuous extrudees the sponge 31 that absorbs water, make its inside rivers go out to V-arrangement backup pad 13 on.

Specifically, the left and right sides of the cooling box 1 are respectively provided with a packaging film outlet 35 and a packaging film inlet 36.

In the above embodiment, the packaging film 11 can be conveniently moved in and out of the interior of the cooling box 1 through the opened packaging film inlet 36 and the packaging film outlet 35.

Specifically, a first support rod 37 is fixedly connected between an outer surface of one side of the two obliquely installed third water supply pipes 18, which is close to each other, and an upper surface of the second water supply pipe 17.

In the above embodiment, the fixing stability of the third water supply pipe 18 and the second water supply pipe 17 is improved by the fixedly provided first support rod 37.

Specifically, the upper surfaces of the sixth water supply pipe 23 and the two air inlet ducts 27 are both fixedly connected with a second support rod 38, and the top of the second support rod 38 is fixedly connected with the inner wall of the top of the cooling box 1.

In the above embodiment, the installation stability of the sixth water supply pipe 23 and the two air inlet ducts 27 is improved by the fixedly provided second support bar 38.

Specifically, four water flow holes 40 are further formed in the middle of the V-shaped support plate 13, water flow pipes 41 are mounted in the water flow holes 40, and bottoms of the four water flow pipes 41 extend into the water tank 12.

In the above embodiment, the flow of water returning to the V-shaped support plate 13 is made to flow into the water tank 12 by the four water flow pipes 40.

Specifically, the left side of the water tank 12 is communicated with a water inlet pipe 41, and a valve 42 is arranged on the water inlet pipe 41.

In the above embodiment, the water is replenished to the inside of the water tank 12 through the water inlet pipe 41, and the valve 42 is used to control the flow amount.

Specifically, a cam shaft 33 is fixedly connected in the axis of the cam 32, and the cam shaft 33 penetrates through the rear wall of the cooling box 1 and is fixedly connected to the output end of the driving motor.

In the above embodiment, the drive motor is installed outside the cooling box 1, and the drive motor is used to provide a driving force for the rotation of the cam 32.

The working principle is as follows: when the cooling box is used, a packaging film 11 enters the cooling box 1 from a packaging film inlet 36 on the right side of the cooling box 1, and then sequentially passes through the outer surfaces of a first guide roller 2, a second guide roller 3, a third guide roller 4, a fourth guide roller 5, a fifth guide roller 6, a sixth guide roller 7, a seventh guide roller 8, an eighth guide roller 9 and a ninth guide roller 10 to be conveyed, a V shape is formed between every two adjacent guide rollers, a first water pump 15 and a second water pump 21 are started, the first water pump 15 draws water from the water box 12, then respectively passes through a first water supply pipe 16, a second water supply pipe 17 and a third water supply pipe 18 and finally enters the fourth water supply pipe 19, the lower surfaces of the packaging film 11 on the two sides of the third guide roller 4 are cooled through four first spray nozzles 20 on one side of the fourth water supply pipe 19, the second water pump 21 draws water from the water box 12, and then respectively passes through a fifth L-shaped water supply pipe 22 and a fifth L-shaped water supply pipe 22, The sixth water supply pipe 23 and the seventh water supply pipe 24 finally enter the eighth water supply pipe 25, the four second nozzles 26 on one side of the eighth water supply pipe 25 spray water to cool the upper surface of the packaging film 11 on both sides of the third guide roller 4, at the same time, the excess water sprayed on the upper and lower surfaces of the packaging film 11 flows onto the V-shaped support plate 13, and then flows into the water tank 12 through the four water flow pipes 40 in the middle of the V-shaped support plate 13, thereby recycling most of the water, the upper and lower surfaces of the packaging film 11 after being cooled by the water spray become wet, the external fan is started, the fan sends the air into the first air outlet pipe 28 and the second air outlet pipe 29 in sequence through the air inlet pipe 27, and finally the air is blown to the upper surface of the packaging film 11 through the air exhaust hood 30 on one side of the second air outlet pipe 29, in addition, when the lower surface of the packaging film 11 passes through the sixth guide roller 7 and the eighth guide roller 9, the water absorption sponge 31 sleeved outside the sixth guide roller 7 and the eighth guide roller 9 can continuously absorb water on the lower surface of the packaging film 11, the driving motor drives the cam 32 to rotate, the pressing plate 34 fixedly sleeved outside the cam 32 can continuously extrude the water absorption sponge 31, so that water inside the water absorption sponge 31 flows out of the V-shaped supporting plate 13 and then flows into the water tank 12 through the four water flowing pipes 40 in the middle of the V-shaped supporting plate 13, and therefore repeated water absorption of the water absorption sponge 31 is achieved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.