Cooling device for mulching film production

Abstract

The utility model relates to the technical field of mulching film production, in particular to a cooling device for mulching film production, which comprises a cold water tank and two guide rollers arranged on the inner wall of the cold water tank at intervals. The first rotating roller is arranged on the outer wall of the first rotating shaft; the second rotating roller is arranged on the outer wall of the third rotating shaft; the absorbent cotton layers are respectively arranged on the outer walls of the first rotating roller and the second rotating roller; the second rotating shaft is rotationally connected in the U-shaped mounting shell and is positioned on one side of the first rotating roller; the first hollow extrusion roller is arranged on the outer wall of the first rotating shaft, the second hollow extrusion roller is arranged on the outer wall of the fourth rotating shaft, the first driving mechanism is in transmission fit with the first rotating shaft and the second rotating shaft, the second driving mechanism is in transmission fit with the third rotating shaft and the fourth rotating shaft, and the air drying assembly is arranged in the U-shaped mounting shell and located on one side of the second hollow extrusion roller and the first rotating roller. When the device is used, water absorbed by the absorbent cotton layer can be extruded conveniently, and the absorption efficiency of the absorbent cotton layer on the water on the mulching film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film production, in particular to a cooling device for plastic film production. Background Art

[0002] Agricultural plastic film, namely ground covering film, is usually transparent or black PE film, and there are also green and silver films, which are used for ground covering to increase soil temperature, maintain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, etc., and promote the growth of plants. During the production process of the plastic film, it needs to be cooled and formed.

[0003] For the existing cooling device for plastic film production, by adding two rollers with absorbent cotton on the outer wall, it has the function of absorbing the water attached to the plastic film after being cooled in the cold water tank, and the absorbent cotton is dried by a dryer. However, the rollers are in a state of continuous rotation and water absorption, and the drying efficiency of the absorbent cotton is low. When there is a large amount of water in the absorbent cotton, the water absorption efficiency of the absorbent cotton decreases, affecting the efficiency of water absorption treatment for the cooled plastic film. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cooling device for plastic film production, which is used to solve the problem of low efficiency of water absorption treatment for the cooled plastic film when the existing device cools and treats the plastic film.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A cooling device for plastic film production, including a cold water tank, two guide rollers arranged at intervals on the inner wall of the cold water tank, and further including a U-shaped mounting shell arranged above the cold water tank, a first rotating shaft and a third rotating shaft arranged at intervals up and down and rotatably connected in the U-shaped mounting shell, a first rotating roller arranged on the outer wall of the first rotating shaft, a second rotating roller arranged on the outer wall of the third rotating shaft, absorbent cotton layers respectively arranged on the outer walls of the first rotating roller and the second rotating roller, a second rotating shaft rotatably connected in the U-shaped mounting shell and located on one side of the first rotating roller, a first extrusion roller arranged on the outer wall of the second rotating shaft, a fourth rotating shaft rotatably connected in the U-shaped mounting shell and located on one side of the second rotating roller, a second hollow extrusion roller arranged on the outer wall of the fourth rotating shaft, a first driving mechanism in transmission cooperation with the first rotating shaft and the second rotating shaft, a second driving mechanism in transmission cooperation with the third rotating shaft and the fourth rotating shaft, and a drying component arranged in the U-shaped mounting shell and located on one side of the second hollow extrusion roller and the first rotating roller. The first rotating roller rotates in the opposite direction to the second rotating roller and the first extrusion roller, and the second rotating roller rotates in the opposite direction to the second hollow extrusion roller.

[0006] Further, the drying component includes stainless steel air knives arranged up and down opposite to each other on the inner wall of the U-shaped mounting shell, branch pipes respectively communicated with one ends of the stainless steel air knives, a blower arranged on one side of the U-shaped mounting shell, an air inlet pipe arranged on one side of the blower, and one ends of the two branch pipes are both communicated with the air inlet pipe.

[0007] Further, a plurality of apertures arranged in an array are formed in the outer wall of the second hollow extrusion roller.

[0008] Further, an inclined guide plate is provided on the inner wall of the U-shaped mounting shell between the first rotating roller and the second rotating shaft, and the inclined guide plate is located on one side of the second rotating roller.

[0009] Further, the first driving mechanism includes a first motor provided on one side of the U-shaped mounting shell, and two first gears provided on the other side of the U-shaped mounting shell and meshed with each other. The output shaft of the first motor is connected to one end of the second rotating shaft, and the two first gears are respectively connected to the first rotating shaft and the second rotating shaft.

[0010] Further, the second driving mechanism includes a second motor provided on one side of the U-shaped mounting shell, and two second gears provided on the other side of the U-shaped mounting shell and meshed with each other. The output shaft of the second motor is connected to one end of the fourth rotating shaft, and the two second gears are respectively connected to the third rotating shaft and the fourth rotating shaft.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The present utility model has the following beneficial effects:

[0013] When cooling the plastic film, one end of the plastic film enters the cold water pool and passes through two guide rollers, then sequentially passes between the first rotating roller and the second rotating roller and between two limiting rollers, and is wound by a winding machine. The first driving mechanism and the second driving mechanism respectively drive the first rotating shaft and the second rotating shaft, and the third rotating shaft and the fourth rotating shaft to rotate in opposite directions. When the cooled plastic film passes between the first rotating roller and the second rotating roller, the water absorption cotton layer absorbs the water on the upper and lower sides of the plastic film. The second rotating shaft drives the first extrusion roller to rotate, and the first extrusion roller extrudes the water absorption cotton layer on the outer wall of the first rotating roller. The fourth rotating shaft drives the second hollow extrusion roller to rotate, and extrudes the water absorption cotton layer on the outer wall of the second rotating roller, squeezing out the water adsorbed by the water absorption cotton layer and entering the cold water pool. The plastic film passing through the first rotating roller and the second rotating roller is further dried by an air drying assembly. Therefore, when the device is used, it is convenient to squeeze the water absorbed by the water absorption cotton layer, and the water absorption efficiency of the water absorption cotton layer for the water on the plastic film is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic cross-sectional view of the plastic film production cooling device of the present utility model;

[0015] Figure 2 is a top view sectional view of the first extrusion roller of the present utility model;

[0016] Figure 3 is a top view sectional view of the second hollow extrusion roller of the present utility model;

[0017] Figure 4 This is the structural sectional view of the second hollow extrusion roller of the present utility model.

[0018] In the figure: 1, cold water tank; 2, guiding roller; 3, U-shaped mounting shell; 4, first rotating shaft; 5, first rotating roller; 6, water-absorbing cotton layer; 7, first extrusion roller; 8, second rotating shaft; 9, third rotating shaft; 10, second rotating roller; 11, inclined guide plate; 12, fourth rotating shaft; 13, second hollow extrusion roller; 14, opening; 15, first motor; 16, first gear; 17, second motor; 18, second gear; 19, stainless steel air knife; 20, branch pipe; 21, air inlet pipe; 22, fan; 23, unwinder; 24, rewinder; 25, mounting frame; 26, limiting roller. Specific embodiments

[0019] Please refer to Figures 1-4, a cooling device for plastic film production, comprising a cold water tank 1, two guide rollers 2 arranged at intervals on the inner wall of the cold water tank 1, a unwinder 23, a winder 24, and a mounting frame 25 arranged on both sides of the cold water tank 1. The mounting frame 25 is located between the winder 24 and the cold water tank 1, and two limiting rollers 26 arranged at intervals up and down are rotatably connected to the inner wall. It also includes a U-shaped mounting shell 3 arranged above the cold water tank 1, a first rotating shaft 4 and a third rotating shaft 9 rotatably connected in the U-shaped mounting shell 3 and arranged at intervals up and down, a first rotating roller 5 arranged on the outer wall of the first rotating shaft 4, a second rotating roller 10 arranged on the outer wall of the third rotating shaft 9, water-absorbing cotton layers 6 respectively arranged on the outer walls of the first rotating roller 5 and the second rotating roller 10, a second rotating shaft 8 rotatably connected in the U-shaped mounting shell 3 and located on one side of the first rotating roller 5, a first extrusion roller 7 arranged on the outer wall of the second rotating shaft 8, a fourth rotating shaft 12 rotatably connected in the U-shaped mounting shell 3 and located on one side of the second rotating roller 10, a second hollow extrusion roller 13 arranged on the outer wall of the fourth rotating shaft 12, a first driving mechanism in transmission cooperation with the first rotating shaft 4 and the second rotating shaft 8, a second driving mechanism in transmission cooperation with the third rotating shaft 9 and the fourth rotating shaft 12, and a drying component arranged in the U-shaped mounting shell 3 and located on one side of the second hollow extrusion roller 13 and the first rotating roller 5. The first rotating roller 5 rotates in the opposite direction to the second rotating roller 10 and the first extrusion roller 7, and the second rotating roller 10 rotates in the opposite direction to the second hollow extrusion roller 13. When cooling the plastic film, one end of the plastic film enters the cold water tank 1 and passes through the two guide rollers 2, then sequentially passes between the first rotating roller 5 and the second rotating roller 10, and between the two limiting rollers 26, and is wound by the winder 24. The first driving mechanism and the second driving mechanism respectively drive the first rotating shaft 4 and the second rotating shaft 8, and the third rotating shaft 9 and the fourth rotating shaft 12 to rotate in the opposite direction. When the cooled plastic film passes between the first rotating roller 5 and the second rotating roller 10, the water-absorbing cotton layer 6 absorbs the water on the upper and lower sides of the plastic film. The second rotating shaft 8 drives the first extrusion roller 7 to rotate, and the first extrusion roller 7 extrudes the water-absorbing cotton layer 6 on the outer wall of the first rotating roller 5. The fourth rotating shaft 12 drives the second hollow extrusion roller 13 to rotate, and extrudes the water-absorbing cotton layer 6 on the outer wall of the second rotating roller 10, squeezing out the water adsorbed by the water-absorbing cotton layer 6 and entering the cold water tank 1. The plastic film passing through the first rotating roller 5 and the second rotating roller 10 is further dried by the drying component. Thus, when the device is in use, it is convenient to squeeze the water absorbed by the water-absorbing cotton layer 6, improving the water absorption efficiency of the water-absorbing cotton layer 6 for the water on the plastic film.

[0020] The air-drying assembly includes stainless steel air knives 19 arranged oppositely up and down on the inner wall of the U-shaped mounting shell 3, branch pipes 20 respectively communicated with one end of the stainless steel air knives 19, a blower 22 arranged on one side of the U-shaped mounting shell 3, and an air inlet pipe 21 arranged on one side of the blower 22. One end of each of the two branch pipes 20 is communicated with the air inlet pipe 21. When the plastic film passes between the two stainless steel air knives 19, the air generated by the blower 22 enters the air inlet pipe 21, and enters the two stainless steel air knives 19 respectively through the two branch pipes 20, and the blown air further dries the plastic film.

[0021] A plurality of apertures 14 are arranged in an array on the outer wall of the second hollow extrusion roller 13. When the second hollow extrusion roller 13 extrudes and dewater the water-absorbing cotton layer 6, the extruded water enters the second hollow extrusion roller 13 through the apertures 14, and is discharged from the apertures 14 into the cold water tank 1 under the action of gravity.

[0022] An inclined guide plate 11 is arranged on the inner wall of the U-shaped mounting shell 3 between the first rotating roller 5 and the second rotating shaft 8, and the inclined guide plate 11 is located on one side of the second rotating roller 10. The water extruded by the first extrusion roller 7 is guided into the cold water tank 1 through the inclined guide plate 11.

[0023] The first driving mechanism includes a first motor 15 arranged on one side of the U-shaped mounting shell 3, and two first gears 16 arranged on the other side of the U-shaped mounting shell 3 and meshed with each other. The two first gears 16 are respectively connected with the first rotating shaft 4 and the second rotating shaft 8. Through the controller installed on one side of the cold water tank 1, the first motor 15 is controlled to start. The first motor 15 drives the second rotating shaft 8 to rotate. Through the two first gears 16 meshed with each other, the output shaft of the first motor 15 is connected with one end of the second rotating shaft 8, driving the first rotating shaft 4 to rotate, and further driving the first extrusion roller 7 and the first rotating roller 5 to rotate in opposite directions.

[0024] The second driving mechanism includes a second motor 17 arranged on one side of the U-shaped mounting shell 3, and two second gears 18 arranged on the other side of the U-shaped mounting shell 3 and meshed with each other. The output shaft of the second motor 17 is connected with one end of the fourth rotating shaft 12. The two second gears 18 are respectively connected with the third rotating shaft 9 and the fourth rotating shaft 12. Through the controller, the second motor 17 is controlled to start. The second motor 17 drives the fourth rotating shaft 12 to rotate. Through the two second gears 18 meshed with each other, the third rotating shaft 9 is driven to rotate, and further driving the second hollow extrusion roller 13 and the second rotating roller 10 to rotate in opposite directions.

[0025] Working principle: When cooling the plastic film, one end of the plastic film enters the cold water tank 1 and passes through two guiding rollers 2, then sequentially passes between the first rotating roller 5 and the second rotating roller 10, and between two limiting rollers 26, and is wound by the winding machine 24. The controller controls the operation of the first motor 15, the second motor 17, and the winding machine 24. When the cooled plastic film passes between the first rotating roller 5 and the second rotating roller 10, the water absorption cotton layer 6 absorbs the water on the upper and lower sides of the plastic film. The first motor 15 drives the second rotating shaft 8 to rotate. Through two mutually meshing first gears 16, the first rotating shaft 4 is driven to rotate, and then the first extrusion roller 7 and the first rotating roller 5 rotate in the opposite direction. The first extrusion roller 7 extrudes the water absorption cotton layer 6 on the outer wall of the first rotating roller 5. The second motor 17 drives the fourth rotating shaft 12 to rotate. Through two mutually meshing second gears 18, the third rotating shaft 9 is driven to rotate, and the water absorption cotton layer 6 on the outer wall of the second rotating roller 10 is extruded, and the water adsorbed by the water absorption cotton layer 6 is extruded and enters the cold water tank 1. When the plastic film passing through the first rotating roller 5 and the second rotating roller 10 passes between two stainless steel air knives 19, the wind generated by the fan 22 enters the air inlet pipe 21 and enters the two stainless steel air knives 19 through two branch pipes 20 respectively, and the blown wind further dries the plastic film. Therefore, when the device is used, it is convenient to extrude the water absorbed by the water absorption cotton layer 6, and the water absorption efficiency of the water absorption cotton layer 6 for the water on the plastic film is improved.

[0026] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooling device for film production, comprising a cold water pool (1), and two guide rollers (2) arranged on the inner wall of the cold water pool (1) and spaced apart, characterized in that: The device also comprises a U-shaped mounting shell (3) disposed on the upper side of the cold water pool (1), a first rotating shaft (4) and a third rotating shaft (9) rotatably connected in the U-shaped mounting shell (3) and arranged at intervals in the upper and lower parts, a first rotating roller (5) disposed on the outer wall of the first rotating shaft (4), a second rotating roller (10) disposed on the outer wall of the third rotating shaft (9), a water-absorbing cotton layer (6) disposed on the outer walls of the first rotating roller (5) and the second rotating roller (10), respectively, a second rotating shaft (8) rotatably connected in the U-shaped mounting shell (3) and located on one side of the first rotating roller (5), a first squeezing roller (7) disposed on the outer wall of the second rotating shaft (8), a first rotating roller (5) rotatably connected in the U-shaped mounting shell (3) and arranged on the outer wall of the second rotating shaft (8), and a first rotating roller (6) rotatably connected in the U-shaped mounting shell (3) and arranged on the outer wall of the second rotating shaft (8). A fourth rotating shaft (12) located on one side of the second rotating roller (10), a second hollow squeezing roller (13) arranged on the outer wall of the fourth rotating shaft (12), a first driving mechanism that is in transmission cooperation with the first rotating shaft (4) and the second rotating shaft (8), a second driving mechanism that is in transmission cooperation with the third rotating shaft (9) and the fourth rotating shaft (12), and an air-drying component that is arranged in the U-shaped mounting shell (3) and is located on one side of the second hollow squeezing roller (13) and the first rotating roller (5), wherein the first rotating roller (5) rotates in the opposite direction to the second rotating roller (10) and the first squeezing roller (7), and the second rotating roller (10) and the second hollow squeezing roller (13) rotate in the opposite direction.

2. A cooling device for film production as claimed in claim 1, characterized in that: The air drying component comprises a stainless steel air knife (19) disposed on the inner wall of the U-shaped mounting shell (3) and arranged opposite to each other in the upper and lower directions, a branch pipe (20) respectively connected to one end of the stainless steel air knife (19), a fan (22) disposed on one side of the U-shaped mounting shell (3), and an air inlet pipe (21) disposed on one side of the fan (22), wherein one end of each of the two branch pipes (20) is connected to the air inlet pipe (21).

3. A cooling device for film production according to claim 1, characterized in that: The outer wall of the second hollow extrusion roller (13) is provided with a plurality of openings (14) arranged in an array.

4. A cooling device for film production as claimed in claim 1, characterized in that: The inner wall of the U-shaped mounting shell (3) is provided with an inclined guide plate (11) located between the first rotating roller (5) and the second rotating shaft (8), and the inclined guide plate (11) is located on one side of the second rotating roller (10).

5. A cooling device for film production as claimed in claim 1, characterized in that: The first driving mechanism comprises a first motor (15) arranged on one side of the U-shaped mounting shell (3), and two first gears (16) arranged on the other side of the U-shaped mounting shell (3) and meshingly connected to each other, wherein the output shaft of the first motor (15) is connected to one end of the second rotating shaft (8), and the two first gears (16) are respectively connected to the first rotating shaft (4) and the second rotating shaft (8).

6. A cooling device for film production as claimed in claim 1, characterized in that: The second driving mechanism comprises a second motor (17) arranged on one side of the U-shaped mounting shell (3), and two second gears (18) arranged on the other side of the U-shaped mounting shell (3) and meshingly connected to each other, wherein the output shaft of the second motor (17) is connected to one end of the fourth rotating shaft (12), and the two second gears (18) are respectively connected to the third rotating shaft (9) and the fourth rotating shaft (12).

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