Cooling roller mechanism for EVA (Ethylene Vinyl Acetate) film production line

Abstract

The utility model discloses a cooling roller mechanism for an EVA (Ethylene Vinyl Acetate) adhesive film production line, which relates to the technical field of EVA adhesive film processing equipment and comprises a base, a water tank is arranged at the top of the base, a water adding pipe is arranged on the water tank, and a fixing frame is arranged at the top of the water tank; the two ends of the fixing frame are connected with round pipes through bearings, and the opposite sides of the round pipes on the two sides are connected with the cooling rollers. A motor is arranged on the fixing frame, and a belt transmission device connected with the circular pipe on the right side is arranged on an output shaft of the motor; the cooling roller is rotationally connected with the water spraying pipe through the bearing, the spray heads located in the cooling roller are evenly arranged on the water spraying pipe, then cooling water is sprayed out through the spray heads at the same time, the rotating cooling roller can be evenly cooled, and the problems that in the prior art, the temperature difference between the two ends of the cooling roller is large, and the adhesive film forming effect is poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to EVA adhesive film processing equipment technical field, concretely is a kind of EVA adhesive film production line cooling roller mechanism. BACKGROUND

[0002] The production of adhesive film is that EVA particles are extruded by screw extruder, passed through filter screen, extruded from forming die head to be film-shaped vertical casting between forming flower roller and forming rubber roller, and rolled into adhesive film with pattern and uniform thickness. Due to the harsh requirements of the photovoltaic industry, the production equipment for EVA adhesive film is also very high, including process difficulties such as stability of the equipment, extrusion temperature control, prevention of crosslinking and curing, control of product shrinkage, etc.

[0003] In the prior art, the motor drives the cooling roller to rotate through a chain wheel or a belt wheel, the adhesive film is cooled and drawn through the flower roller, and then cooled and formed through each cooling roller. Some of the cooling rollers are arranged in sequence on one side of the flower roller. However, the cooling roller keeps the cooling mode of flowing in cooling water from one end and flowing out water with temperature from the other end, which causes a significant temperature gradient in the width of the roller body, and further causes the temperature of one end of the cooling roller to be high and the temperature of the other end to be low, resulting in a large temperature difference between the two ends of the roller body, so that the adhesive film at different positions on the cooling roller has a large and uneven shrinkage rate, affecting the forming quality of the EVA adhesive film. Therefore, we propose a kind of EVA adhesive film production line cooling roller mechanism. SUMMARY

[0004] The utility model aims at providing a kind of EVA adhesive film production line cooling roller mechanism to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of EVA adhesive film production line cooling roller mechanism, including, base, the top of the base is provided with water tank, the water tank is provided with water pipe, the top of the water tank is provided with fixed frame;

[0006] The both ends of the fixed frame are connected with circular tubes through bearings, and the opposite sides of the two circular tubes are connected with cooling rollers;

[0007] A motor is arranged on the fixed frame, and a belt drive device connected with the right circular tube is arranged on the output shaft of the motor;

[0008] The two sides of the cooling roller are connected with water spray pipes through bearings, and the rear sides of the water spray pipes are uniformly connected with spray heads located in the cooling roller;

[0009] A pump one is arranged on the base, the water inlet of the pump one is communicated with one end of water suction pipe, and the other end of the water suction pipe is communicated with the water tank, and a pipe group communicated with the water spray pipe is arranged on the water outlet of the pump one;

[0010] The cooling roll is provided with through holes in the pipe on both sides in a uniform ring shape.

[0011] The top of the base is provided with cooling water recovery devices on both sides in communication with the water tank.

[0012] As a preferred scheme of the EVA film production line cooling roll mechanism, the pipe group comprises an L pipe one, one end of the L pipe one is in communication with the water spraying pipe, the other end of the L pipe one is in communication with the connecting pipe, one end of the connecting pipe is in communication with an L pipe two, the other end of the L pipe two is in communication with the water outlet of the pump one.

[0013] As a preferred scheme of the EVA film production line cooling roll mechanism, the L pipe one and the L pipe two are vertically arranged.

[0014] As a preferred scheme of the EVA film production line cooling roll mechanism, the cooling water recovery device comprises an air-cooled water cooler, a collecting hopper is arranged on the water inlet of the air-cooled water cooler, a water suction pipe is arranged on the water outlet of the air-cooled water cooler, the water suction pipe is in communication with the water inlet of the pump two, and a water supply pipe in communication with the water tank is arranged on the water outlet of the pump two.

[0015] As a preferred scheme of the EVA film production line cooling roll mechanism, the air-cooled water cooler and the pump two are arranged on the base.

[0016] As a preferred scheme of the EVA film production line cooling roll mechanism, the collecting hopper is located below the pipe.

[0017] Compared with the prior art, the EVA film production line cooling roll mechanism has the following beneficial effects:

[0018] 1. The cooling roll is rotatably connected with the water spraying pipe through the bearing, and the nozzles in the cooling roll are uniformly arranged on the water spraying pipe, so that the cooling water is sprayed through the nozzles at the same time, the rotating cooling roll is uniformly cooled, and the problem of large temperature difference between the two ends of the cooling roll in the prior art, which causes poor film forming effect, is solved.

[0019] 2. The cooling water recovery devices are arranged below the two pipes, so that the cooling efficiency of the collected cooling water is improved, and the cooling water is recovered faster. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is an overall structure schematic view of the EVA film production line cooling roll mechanism.

[0021] Fig. 2The utility model discloses a cooling roller mechanism of EVA adhesive film production line shows the structure schematic diagram of cooling roller and water spraying pipe of the utility model discloses a cooling roller mechanism of EVA adhesive film production line.

[0022] Fig. 3 The utility model discloses a whole structure rear view schematic drawing of cooling roller mechanism of EVA adhesive film production line.

[0023] In the drawing: 1, base; 2, water tank; 3, fixed frame; 4, round pipe; 5, cooling roller; 6, motor; 7, belt drive; 8, water spraying pipe; 9, spray head; 10, pump one; 11, water suction pipe; 12, through -hole; 13, air -cooled cold water machine; 14, collection hopper; 15, pump two; 16, water suction pipe; 17, water supply pipe; 18, L pipe one; 19, connecting pipe; 20, L pipe two; 21, water adding pipe. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model protection.

[0025] As mentioned in the background, for the uneven cooling problem of the cooling roller in the prior art, the utility model provides a cooling roller mechanism of EVA adhesive film production line.

[0026] Embodiment 1

[0027] Reference Figs. 1-3 A kind of cooling roller mechanism of EVA adhesive film production line, including, base 1, the top of base 1 is provided with water tank 2, water tank 2 is provided with water adding pipe 21, for adding cooling water to water tank 2, water tank 2 is transparent structure, it is convenient to observe, the top of water tank 2 is provided with fixed frame 3;

[0028] The both ends of fixed frame 3 are connected with round pipe 4 by bearing, and the opposite sides of two side round pipes 4 are connected with cooling roller 5;

[0029] Motor 6 is arranged on fixed frame 3, and the output shaft of motor 6 is provided with belt drive 7 connected with right side round pipe 4, and motor 6 drives round pipe 4 to rotate by belt drive 7, so that cooling roller 5 follows rotation, by setting multiple the mechanism, adhesive film is cooled and drawn after passing through pattern roller, and is cooled and formed by each cooling roller 5, and the cooling roller 5 is arranged in sequence on the side of pattern roller;

[0030] Both sides of the cooling roller 5 are connected with the water spraying pipe 8 through bearings, the rear side of the water spraying pipe 8 is uniformly connected with the spray head 9 located in the cooling roller 5, the cooling roller 5 is rotationally connected with the water spraying pipe 8, so that the water spraying pipe 8 does not rotate with the cooling roller 5, the spray head 9 located in the cooling roller 5 is uniformly arranged on the water spraying pipe 8, and then the cooling water is sprayed out through each spray head 9, so that the rotating cooling roller 5 can be uniformly cooled, and the problem that the temperature difference between the two ends of the cooling roller 5 is large in the prior art, causing poor film forming effect, is improved.

[0031] The base 1 is provided with a pump 10, the water inlet of the pump 10 is communicated with one end of the water suction pipe 11, the other end of the water suction pipe 11 is communicated with the water tank 2, and the water outlet of the pump 10 is provided with a pipe group communicated with the water spraying pipe 8, the pump 10 sucks cooling water through the water suction pipe 11, and then sends the water to the water spraying pipe 8 through the pipe group;

[0032] The cooling roller 5 is uniformly and annularly provided with the through hole 12 located in the circular pipe 4, and the cooling water in the cooling roller 5 is discharged through the through hole 12 with the continuous spraying of the cooling water;

[0033] The top of the base 1 is provided with the cooling water recovery device communicated with the water tank 2.

[0034] The pipe group comprises an L-shaped pipe 18, one end of the L-shaped pipe 18 is communicated with the water spraying pipe 8, the other end of the L-shaped pipe 18 is communicated with the connecting pipe 19, one end of the connecting pipe 19 is communicated with the L-shaped pipe 20, and the other end of the L-shaped pipe 20 is communicated with the water outlet of the pump 10, wherein the L-shaped pipe 18 and the L-shaped pipe 20 are vertically arranged, the L-shaped pipe 18 sends water to the L-shaped pipe 20 through the connecting pipe 19, so as to send water to the water spraying pipe 8, the L-shaped pipe 18 is located on the left side of the cooling roller 5, and the connecting pipe 19 and the L-shaped pipe 20 are located below the cooling roller 5, so that the film is not hindered when being formed on the cooling roller 5 through the L-shaped pipe 18, the connecting pipe 19 and the L-shaped pipe 20.

[0035] Example 2

[0036] Reference Figs. 1-3The cooling water recovery device comprises a wind-cooled water chiller 13 for cooling the recovered cooling water, and is provided by prior art, a collecting hopper 14 is arranged on the water inlet of the wind-cooled water chiller 13, a water suction pipe 16 is arranged on the water outlet of the wind-cooled water chiller 13, the water suction pipe 16 is communicated with the water inlet of the pump 2, a water supply pipe 17 communicated with the water tank 2 is arranged on the water outlet of the pump 2, the wind-cooled water chiller 13 and the pump 2 are arranged on the base 1, the collecting hopper 14 is located below the circular pipe 4, the cooling water flowing out of the through hole 12 falls into the collecting hopper 14 through the circular pipe 4, and then is collected and cooled by the wind-cooled water chiller 13, after being cooled, is pumped out under the action of the pump 2, and is sent back into the water tank 2 through the water supply pipe 17 for recycling, the cooling water recovery device is arranged below the circular pipes 4 on both sides, and the cooling efficiency of the collected cooling water can be improved, so that the cooling water can be recovered faster.

[0037] The rest of the structure is the same as that of example 1.

[0038] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cooling roller mechanism for an EVA film production line, characterized in that: include, A base (1) is provided with a water tank (2) on the top of the base (1), a water inlet pipe (21) is provided on the water tank (2), and a fixing frame (3) is provided on the top of the water tank (2). Both ends of the fixed frame (3) are connected to round tubes (4) via bearings, and the opposite sides of the round tubes (4) are connected to the cooling rollers (5). The fixed frame (3) is equipped with a motor (6), and the output shaft of the motor (6) is equipped with a belt drive device (7) connected to the right circular tube (4); Both sides of the cooling roller (5) are connected to the water spray pipe (8) through bearings, and the spray nozzles (9) located inside the cooling roller (5) are uniformly connected to the rear side of the water spray pipe (8). A pump (10) is provided on the base (1). The inlet of the pump (10) is connected to one end of the water pump pipe (11), and the other end of the water pump pipe (11) is connected to the water tank (2). A pipe assembly connected to the spray pipe (8) is provided on the outlet of the pump (10). The cooling roller (5) has through holes (12) evenly circumferentially opened on both sides, which are located inside the circular tube (4); The base (1) is equipped with cooling water recovery devices on both sides of its top, which are connected to the water tank (2).

2. The cooling roller mechanism for an EVA film production line according to claim 1, characterized in that: The pipe assembly includes L-pipe one (18), one end of which is connected to the water spray pipe (8), the other end of which is connected to the connecting pipe (19), one end of which is connected to L-pipe two (20), and the other end of which is connected to the outlet of pump one (10).

3. The cooling roller mechanism for an EVA film production line according to claim 2, characterized in that: Both L-tube one (18) and L-tube two (20) are vertically arranged.

4. The cooling roller mechanism for an EVA film production line according to claim 1, characterized in that: The cooling water recovery device includes an air-cooled chiller (13), a collection hopper (14) is provided on the inlet of the air-cooled chiller (13), a suction pipe (16) is provided on the outlet of the air-cooled chiller (13), the suction pipe (16) is connected to the inlet of the second pump (15), and a water delivery pipe (17) connected to the water tank (2) is provided on the outlet of the second pump (15).

5. The cooling roller mechanism for an EVA film production line according to claim 4, characterized in that: The air-cooled chiller (13) and the second pump (15) are both mounted on the base (1).

6. The cooling roller mechanism for an EVA film production line according to claim 4, characterized in that: The collection hopper (14) is located below the circular tube (4).

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