CN219114579U - Cooling mechanism of curtain coating membrane - Google Patents

Abstract

The utility model relates to a technical field of curtain coating membrane processing provides a cooling body of curtain coating membrane, and it includes the frame and rotates the chill roll of being connected in the frame, the chill roll is provided with a plurality of, the chill roll includes the roll core and overlaps the roll body of locating the roll core, the periphery wall of roll core is provided with the insulating part, be provided with the cooling piece between roll core and the roll body, the cooling piece is the cooling tube of winding in the roll core, the cooling tube is the heliciform distribution along the axis of roll core, all be filled with coolant between cooling tube, roll body and the roll core, the chill roll is provided with the conveying piece that is used for carrying coolant. The application has the effect of improving the cooling uniformity of the cooling roller to the casting film.

Description

Cooling mechanism of curtain coating membrane

Technical Field

The application relates to the technical field of casting film processing, in particular to a cooling mechanism of a casting film.

Background

Cast film is a non-stretched, non-oriented cast film produced by melt casting and quenching. There are two modes of single-layer casting and multi-layer co-extrusion casting. Compared with film blowing, the film has the characteristics of high production speed, high yield, excellent transparency, glossiness, thickness uniformity and the like. After the casting film is produced, a cooling device is needed to cool the casting film, so that the temperature of the casting film is reduced to a normal temperature state, and then the casting film is processed.

The conventional cooling device for producing a casting film generally cools the casting film by using a cooling roll. The cooling roller is made of hollow steel roller, and is internally filled with cooling medium, and after the two ends are connected with rotary joints, the cooling medium flows in from one end of the cooling roller and flows out from the other end, so that the casting film is cooled.

However, since the cooling roller is rotated so that the flow of the cooling medium in the cavity of the cooling roller is disturbed, the possibility of uneven temperature occurs at the outer surface of the cooling roller, and thus the cooling effect of the casting film is poor, thereby affecting the processing efficiency of the casting film, further improvement is required.

Disclosure of Invention

In order to improve the cooling uniformity of the casting film by the cooling roller, the application provides a cooling mechanism of the casting film.

The utility model provides a cooling mechanism of curtain coating membrane, includes the frame and rotates the chill roll of connecting in the frame, the chill roll is provided with a plurality of, the chill roll includes the roll core and overlaps the roll body of locating the roll core, the periphery wall of roll core is provided with the insulating part, be provided with the cooling part between roll core and the roll body, the cooling part is the cooling tube of winding in the roll core, the cooling tube is the heliciform along the axis of roll core and distributes, all be filled with coolant between cooling tube, roll body and the roll core, the chill roll is provided with the transport piece that is used for carrying coolant.

By adopting the technical scheme, the cooling pipes which are spirally distributed are wound on the roller cores, so that when the conveying piece conveys the cooling pipes, the cooling medium can move along the direction of the pipeline of the cooling pipes, and the cooling medium can be uniformly received outside the roller bodies; even if the interval between the thread sections on the cooling pipe is smaller, a certain gap is reserved, at the moment, the uniformity of the cooling temperature of the peripheral wall of the cooling roller is further improved by conveying the cooling medium to the place with the gap, and the cooling effect of the casting film is improved; because the roller core and the roller body are made of steel materials, the heat insulation piece is arranged on the peripheral wall of the roller core so as to reduce heat exchange between the cooling medium and the roller core, thereby ensuring the cooling effect of the cooling medium.

Preferably, the inner peripheral wall of the cooling pipe is convexly provided with a plurality of thorn pieces.

Through adopting above-mentioned technical scheme, through the protrusion of the inner peripheral wall at the cooling tube is provided with the ceramic chip to increase the area of contact of cooling tube and coolant, with the cooling effect of accelerating the cooling tube, thereby accelerate the cooling rate of roll body.

Preferably, the cooling tube is a hose, a first spring is arranged between thread sections of the cooling tube, a plurality of first springs are arranged, the first springs are arranged in a plurality along the length direction of the roller core, and the cooling roller is provided with a pushing component for pushing the first springs to vibrate.

By adopting the technical scheme, the cooling pipes are arranged in the form of hoses, so that smoothness of the cooling medium in flowing can be ensured when the cooling medium is conveyed, and the possibility of rusting possibly caused by adopting a metal material is reduced; because the cooling medium that uses is the cooling water, because the clearance between the cooling tube is less, probably remain certain incrustation scale between the cooling tube screw thread section to make the flow effect of the cooling water of filling reduce to some extent, through being provided with first spring between the screw thread section of cooling tube, through being provided with the promotion subassembly in order to promote first spring this moment, thereby make the screw thread section between the cooling tube appear carrying out relative vibration, guarantee the flow effect of cooling water.

Preferably, the pushing assembly comprises a pushing plate arranged between the roller core and the roller body and a driving piece for driving the pushing plate to move towards the direction close to the cooling pipe, the pushing plate is fixedly connected with a second spring, and the other end of the spring is fixedly connected with the cooling pipe.

Through adopting above-mentioned technical scheme, through being provided with the driving piece in order to promote the impeller plate to through driving the rocking of second spring in order to drive the cooling tube, owing to be provided with a plurality of first spring between the cooling tube, thereby through the propagation of elasticity so that appear rocking between the adjacent screw thread section of drive.

Preferably, the pushing plate is a circular ring plate, the pushing plate is sleeved on the roller core, and the second springs are distributed in a plurality around the axis of the pushing plate.

Through adopting above-mentioned technical scheme, because between second spring, hose and the first spring at the in-process that rocks, receive the produced rocking of resistance of water to some extent to reduce, consequently be the ring board setting through the impeller plate, and distribute around the axis of impeller plate and have a plurality of second spring to improve and open the rocking effect of cooling tube.

Preferably, the driving piece is a cylinder, the cylinder is fixedly connected to one end of the roller body, an output shaft of the cylinder slides and penetrates through the outer side wall of the roller body to be fixedly connected with the pushing plate, and a sealing ring is arranged in the roller body.

Through adopting above-mentioned technical scheme, through the organism setting of cylinder outside cooling medium to reduce the influence of cooling medium to the cylinder, with the cylinder setting outside the roll body, the output shaft of cylinder is in the roll body this moment, through being provided with the sealing washer, in order to reduce the output shaft of cylinder and promote the in-process that the cooling medium flows out to the impeller.

Preferably, the heat insulation piece is a heat insulation layer arranged on the roller core, and the heat insulation layer is a rubber and plastic sponge heat insulation layer.

Through adopting above-mentioned technical scheme, through being the rubber sponge heat preservation with the insulating layer, owing to it has certain low temperature resistant and has the heat preservation effect, reducible cooling medium and the heat exchange between the roller core, and the rubber sponge keeps warm and has certain waterproof effect.

Preferably, the heat insulation member further comprises a waterproof layer arranged on the heat insulation layer, and the waterproof layer is a polyurethane layer.

By adopting the technical scheme, as the roller core is arranged in the roller body, if the rubber sponge heat-insulating layer is in long-term contact with the cooling medium, the heat-insulating effect of the rubber sponge heat-insulating layer can be possibly reduced, and the waterproof layer is arranged on the roller core so as to reduce the possibility that the cooling medium flows into the heat-insulating layer and ensure the heat-insulating effect of the heat-insulating layer; by adopting the polyurethane layer, the roller has good waterproof property and certain heat insulation effect, and the heat insulation effect between the cooling medium and the roller core is further improved.

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

1. the cooling pipes are spirally distributed on the roller cores, so that the cooling medium moves along the direction of the pipeline of the cooling pipes, and the cooling medium is uniformly received outside the roller bodies; and the cooling medium is conveyed at the place where a gap is reserved between the roller core and the roller body, so that the uniformity of the cooling temperature of the peripheral wall of the cooling roller is further improved, and the cooling effect of the casting film is improved;

2. the inner peripheral wall of the cooling pipe is convexly provided with the thorn sheet so as to increase the contact area between the cooling pipe and the cooling medium and accelerate the cooling effect of the cooling pipe, thereby accelerating the cooling rate of the roller body;

3. through be provided with first spring and with promote the cooperation between the subassembly between the screw thread section of cooling tube to make the screw thread section between the cooling tube appear carrying out relative vibration, guarantee the flow effect of cooling water.

Drawings

FIG. 1 is a schematic view showing the overall structure of a cooling mechanism for a casting film in embodiment 1 of the present application;

FIG. 2 is a schematic view showing the internal structure of a cooling roll in example 1 of the present application;

FIG. 3 is a schematic cross-sectional structure of a cooling tube in embodiment 1 of the present application;

FIG. 4 is an enlarged partial schematic view of FIG. 2 at A;

FIG. 5 is a schematic view showing the structure of a heat insulator in embodiment 1 of the present application;

FIG. 6 is a schematic view showing the internal structure of a cooling roll in example 2 of the present application;

fig. 7 is an enlarged partial schematic view of fig. 6 at B.

In the figure, 1, a rack; 2. a cooling roller; 21. a roller body; 22. a roll core; 221. a first deflector; 222. a second deflector; 23. a roll shaft; 3. a driving member; 31. a driving roller; 32. a driving motor; 33. a drive belt; 4. a transfer wheel; 5. a cooling tube; 51. puncturing sheets; 52. a first spring; 6. a conveying member; 61. a cold water tank; 62. a water pump; 63. a water pipe; 64. a water outlet pipe; 65. a rotary joint; 7. a water outlet hole; 8. a heat insulating member; 81. a thermal insulation layer; 82. a waterproof layer; 9. a pushing assembly; 91. a cylinder; 92. a pushing plate; 921. a second spring; 10. and (3) sealing rings.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

Example 1:

referring to fig. 1, a cooling mechanism for a casting film includes a frame 1 and cooling rollers 2 rotatably connected to the frame 1, in this embodiment, the cooling rollers 2 are provided in a plurality, and the plurality of cooling rollers 2 are staggered along a length direction of the frame 1. The frame 1 is provided with driving piece 3 in order to drive chill roll 2 rotation to be connected, driving piece 3 includes drive roller 31, driving motor 32 and drive belt 33, drive roller 31 rotates to be connected in frame 1, driving motor 32 fixed connection is in the periphery wall of frame 1, the output shaft of driving motor 32 rotates and wears to locate frame 1 and drive roller 31 fixed connection, drive belt 33 is provided with a plurality of, the tip of drive roller 31 and chill roll 2 is all fixed the cover and is equipped with transfer wheel 4, drive belt 33 winds to roll up in adjacent transfer wheel 4, wind a drive belt 33 between every two transfer wheels 4 to with the conveying that drives between the chill roll 2.

Referring to fig. 1 and 2, the cooling roller 2 includes a roller body 21, a roller core 22 and a roller shaft 23, the roller body 21 and the roller shaft 23 are hollow, the roller core 22 is coaxially and fixedly arranged in the roller body 21, one cooling roller 2 is provided with two roller shafts 23, the two roller shafts 23 are respectively and fixedly connected to two ends of the roller body 21, the conveying wheel 4 is coaxially and fixedly sleeved on the peripheral wall of the roller shaft 23, and one end of the roller shaft 23, far away from the roller body 21, rotates and wears to locate the side wall of the frame 1.

Referring to fig. 1 and 2, a cooling member is disposed between the roller body 21 and the roller core 22, in this embodiment, the cooling member is a cooling tube 5, the cooling tube 5 is wound around the outer peripheral wall of the roller core 22, the cooling tube 5 is spirally distributed along the axis of the roller core 22, and adjacent screw thread segments of the cooling tube 5 are adjacent to each other.

Referring to fig. 2 and 3, in the present embodiment, the cooling tube 5 is provided with a hose, the inner peripheral wall of the cooling tube 5 is convexly fixed with the piercing tabs 51, and the piercing tabs 51 are provided with a plurality of piercing tabs and are distributed at intervals along the axial direction of the cooling tube 5 and along the length direction of the cooling tube 5.

Referring to fig. 1 and 2, the cooling roller 2 is provided with a conveyor 6 for conveying a cooling medium, which in this embodiment is cooling water. The conveying member 6 comprises a cold water tank 61, a water suction pump 62, a water conveying pipe 63, a water outlet pipe 64 and a rotary joint 65, wherein the cold water tank 61 is arranged on one side of the bracket, the water inlet end of the water suction pump 62 is fixedly arranged on the outer side wall of the cold water tank 61 in a penetrating mode, and the water inlet end of the water conveying pipe 63 is fixedly connected with the water outlet end of the water suction pump 62. The water delivery pipe 63 and the water outlet pipe 64 are symmetrically arranged along the radial direction of the cooling roller 2, the rotary joint 65 is provided with a plurality of rollers 23 and is respectively connected with the plurality of rollers 23, the water outlet end of the water delivery pipe 63 sequentially penetrates through the rotary joint 65, the rollers 23 and the end part of the roller body 21 to extend into the roller body 21, and the water inlet end of the water outlet pipe 64 sequentially penetrates through the rotary joint 65, the rollers 23 and the end part of the roller body 21 to extend into the roller body 21.

Referring to fig. 2 and 4, a first guide plate 221 and a second guide plate 222 are fixedly connected to the peripheral wall of the roller core 22 near two ends, the first guide plate 221 and the second guide plate 222 are hollow, and two water outlets are formed in the end faces of the first guide plate 221 and the second guide plate 222 near the cooling pipe 5. The end faces of the first guide plate 221 and the second guide plate 222 far away from the roller core 22 are fixedly connected to the roller body 21, the water outlet end of the water conveying pipe 63 is fixedly arranged on the first guide plate 221 in a penetrating mode, the water inlet end of the water outlet pipe 64 is fixedly arranged on the second guide plate 222 in a penetrating mode, the water inlet end of the cooling pipe 5 is fixedly connected to one water outlet of the first guide plate 221, and the water outlet end of the cooling pipe 5 is fixedly connected to one water outlet of the second guide plate 222.

Referring to fig. 2 and 5, the outer peripheral wall of the roller core 22 is provided with a heat insulating member 8, the heat insulating member 8 includes a heat insulating layer 81 and a waterproof layer 82, and in this embodiment, the heat insulating layer 81 is a rubber-plastic sponge heat insulating layer, and the waterproof layer 82 is a polyurethane layer. The heat insulating layer 81 is fixedly sleeved on the outer peripheral wall of the roller core 22, and the waterproof layer 82 is fixedly connected to the heat insulating layer 81.

The implementation principle of the cooling mechanism of the casting film in the embodiment of the application is as follows: when the casting film is cooled, the temperature of the cooling rollers 2 is firstly reduced, and the water suction pump 62 is started to flow cold water in the cold water tank 61 into the cooling pipe 5 and the roller body 21 through the water delivery pipe 63, so that the temperature of the peripheral wall of the roller body 21 is reduced, and the driving motor 32 is started to drive the rotation among the cooling rollers 2, so that the casting film is cooled.

Example 2:

referring to fig. 6 and 7, this embodiment is different from embodiment 1 in that first springs 52 are provided between the thread segments of the cooling tube 5, the first springs 52 are provided in a plurality, and the plurality of first springs 52 are distributed along the length direction of the roller core 22. The cooling roller 2 is provided with the pushing component 9 that promotes the vibrations of first spring 52, and the pushing component 9 includes push plate 92 and pushing piece, and in this embodiment, push plate 92 is the setting of ring platy, and the coaxial cover of push plate 92 locates the periphery wall of roll body 21, and the terminal surface fixedly connected with second spring 921 that push plate 92 is close to cooling tube 5, the other end fixedly connected with of second spring 921 in the periphery wall of cooling tube 5, second spring 921 are provided with a plurality of and follow the axis interval distribution of push plate 92.

Referring to fig. 6 and 7, in the present embodiment, the pushing member is an air cylinder 91, the air cylinder 91 is fixedly connected to one end of the roller body 21, the output shaft of the air cylinder 91 is slidably disposed on the outer peripheral wall of the roller body 21 and is fixedly connected to the pushing plate 92, and the roller body 21 is fixedly connected to the sealing ring 10 between the connecting part of the output shaft of the air cylinder 91 and the roller body 21.

The implementation principle of the cooling mechanism of the casting film in the embodiment of the application is as follows: in the process of cooling the casting film, by starting the air cylinder 91, the telescopic rod of the air cylinder 91 moves in the direction that the push plate 92 box is close to the second spring 921, so as to drive the cooling pipe 5 and the first spring 52 to shake, and therefore the possibility that the flow of the cooling medium is not smooth enough due to the generation of scale can be reduced.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A cooling mechanism for a casting film, characterized in that: including frame (1) and rotate chill roll (2) of being connected on frame (1), chill roll (2) are provided with a plurality of, chill roll (2) are including roller core (22) and cover locating roller body (21) of roller core (22), the periphery wall of roller core (22) is provided with thermal-insulated piece (8), be provided with the cooling piece between roller core (22) and roller body (21), the cooling piece is for winding up in cooling tube (5) of roller core (22), cooling tube (5) are the heliciform and distribute along the axis of roller core (22), all be filled with cooling medium between cooling tube (5), roller body (21) and the roller core (22), chill roll (2) are provided with conveying piece (6) that are used for carrying cooling medium.

2. A casting film cooling mechanism according to claim 1, wherein: the inner peripheral wall of the cooling pipe (5) is convexly provided with a plurality of thorn pieces (51).

3. A casting film cooling mechanism according to claim 1, wherein: the cooling tube (5) is a hose, a first spring (52) is arranged between thread sections of the cooling tube (5), a plurality of first springs (52) are arranged, the first springs (52) are arranged along the length direction of the roller core (22), and the cooling roller (2) is provided with a pushing component (9) for pushing the first springs (52) to vibrate.

4. A casting film cooling mechanism according to claim 3, wherein: the pushing assembly (9) comprises a pushing plate (92) arranged between the roller core (22) and the roller body (21) and a pushing piece for pushing the pushing plate (92) to move towards the direction close to the cooling pipe (5), the pushing plate (92) is fixedly connected with a second spring (921), and the other end of the second spring (921) is fixedly connected with the cooling pipe (5).

5. A casting film cooling mechanism according to claim 4, wherein: the pushing plate (92) is slidably sleeved on the roller core (22), and a plurality of second springs (921) are distributed around the axis of the pushing plate (92).

6. A casting film cooling mechanism according to claim 4, wherein: the pushing piece is an air cylinder (91), the air cylinder (91) is fixedly connected to one end of the roller body (21), an output shaft of the air cylinder (91) is glidingly arranged on the outer side wall of the roller body (21) in a penetrating mode and is fixedly connected with the pushing plate (92), and a sealing ring (10) is arranged in the roller body (21).

7. A casting film cooling mechanism according to claim 1, wherein: the heat insulation piece (8) comprises a heat insulation layer (81) arranged on the roller core (22), and the heat insulation layer (81) is a rubber and plastic sponge heat insulation layer.

8. A casting film cooling mechanism according to claim 7, wherein: the heat insulation piece (8) further comprises a waterproof layer (82) arranged on the heat insulation layer (81), and the waterproof layer (82) is a polyurethane layer.

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