CN211843136U

CN211843136U - Film cooling roller set

Info

Publication number: CN211843136U
Application number: CN201922476133.7U
Authority: CN
Inventors: 朱建华
Original assignee: Zhejiang Minglong New Material Technology Co ltd
Current assignee: Zhejiang Minglong New Material Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-03
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a film cooling roller set provides a technical scheme for solving the poor problem of current film cooling device cooling effect and does: a film cooling roller group comprises a rack, a flattening roller, a fan, a cooling roller and a semiconductor refrigerator; the flattening roller is rotationally connected to the frame; the fan is fixed on the frame; the cooling roller is rotationally connected with the frame; the cooling roller comprises a roller sleeve, a roller core and a cover plate; the roller sleeve is sleeved on the roller core; the cover plate is fixedly connected with the roller sleeve; a cavity is arranged in the roller core; cold conducting medium is injected into the cavity; one end of the roller core is also provided with a threaded hole; the threaded hole is communicated with the cavity; one end of the semiconductor refrigerator is provided with a pressing sheet, and the other end of the semiconductor refrigerator is provided with a cold conductor; the surface of the semiconductor refrigerator is provided with a thread matched with the threaded hole; the semiconductor refrigerator is in threaded connection with the roller core; a rubber ring for leakage prevention is arranged between the pressing sheet and the roller core. The utility model has the advantages of reasonable design, the cooling effect is good and energy-concerving and environment-protective.

Description

Film cooling roller set

Technical Field

The utility model relates to a cooling roller set specifically relates to a film cooling roller set.

Background

In the production process of the PVC film, the temperature of the film after extrusion molding is high, so that the film needs to be cooled and then wound into a finished product. However, the current film cooling means is generally air cooling or water cooling, the air cooling has low cooling efficiency, the water cooling needs to lay complex pipelines and continuously feed cooling water, and resource waste is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is reasonable, and the cooling effect is good, energy-concerving and environment-protective film cooling roller set.

The utility model provides a technical scheme that above-mentioned problem adopted is: the film cooling roller group comprises a rack, a flattening roller, a fan, a cooling roller and a semiconductor refrigerator; the flattening roller is rotationally connected to the rack; the fan is fixed on the frame; the cooling roller is rotationally connected with the rack; the cooling roller comprises a roller sleeve, a roller core and a cover plate; the roller sleeve is sleeved on the roller core; the cover plate is fixedly connected with the roller sleeve; a cavity is arranged in the roller core; a cold conducting medium is injected into the cavity; one end of the roller core is also provided with a threaded hole; the threaded hole is communicated with the cavity; one end of the semiconductor refrigerator is provided with a pressing sheet, and the other end of the semiconductor refrigerator is provided with a cold conductor; the surface of the semiconductor refrigerator is provided with a thread matched with the threaded hole; the semiconductor refrigerator is in threaded connection with the roller core; and a rubber ring for leakage prevention is arranged between the pressing sheet and the roller core.

Preferably, the cavity of the present invention is further provided with an electric helical blade for enhancing the flow of the cold conducting medium.

Preferably, the cold conductor of the present invention is in the form of a sheet, a rod or a spiral.

Preferably, the nip roll of the present invention includes an upper nip roll and a side nip roll.

Preferably, the number of the upper flattening roll and the number of the side flattening rolls in the present invention are not less than 2.

Preferably, in the utility model discloses in the fan is located nip roll under.

Preferably, in the present invention, the number of the cooling rolls is not less than 2.

Compared with the prior art, the utility model, have following advantage and effect: the utility model has reasonable structure design, good cooling effect, no waste of water resource, energy saving and environmental protection; the semiconductor refrigerator and the cold conducting medium are arranged in the cooling roller, so that the whole cooling roller has lower temperature and better cooling effect; the fan in the utility model can enhance the cooling effect, and because the film is cooled quickly when on the cooling roller, the fan can also play a drying role due to the condensed water drops possibly carried; the rubber ring in the utility model can deform under the extrusion action of the pressing sheet, so as to firmly block the gap between the semiconductor refrigerator and the roller core and prevent the leakage of cold conduction medium; the utility model discloses well electronic helical blade can make the cold conduction medium in the cavity flow, prevents to appear cold and hot uneven condition, influences the quality of film.

Drawings

Fig. 1 is a schematic structural diagram of a film cooling roller set in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a cooling roller and a semiconductor cooler in an embodiment of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: the device comprises a frame 1, a flattening roller 2, a fan 3, a cooling roller 4, a semiconductor refrigerator 5, an electric spiral blade 6, a cold conducting medium 7, a roller sleeve 41, a roller core 42, a cover plate 43, a cavity 421, a threaded hole 422, a cold conducting body 51, a pressing sheet 52 and a rubber ring 53.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1 to 3, the film cooling roller group in the present embodiment includes a frame 1, a nip roll 2, a fan 3, a cooling roll 4, and a semiconductor cooler 5; the flattening roller 2 is rotationally connected to the frame 1; the fan 3 is fixed on the frame 1; the cooling roller 4 is rotationally connected with the frame 1; the cooling roll 4 comprises a roll sleeve 41, a roll core 42 and a cover plate 43; the roller sleeve 41 is sleeved on the roller core 42; the cover plate 43 is fixedly connected with the roller sleeve 41; a cavity 421 is arranged in the roller core 42; the cold conducting medium 7 is injected into the cavity 421; one end of the roller core 42 is also provided with a threaded hole 422; the threaded hole 422 is communicated with the cavity 421; an electric spiral blade 6 for enhancing the flow of the cold conducting medium 7 is also arranged in the cavity 421.

The semiconductor refrigerator 5 in this embodiment has a pressing piece 52 at one end and a cold conductor 51 at the other end; the surface of the semiconductor refrigerator 5 is provided with a thread matched with the threaded hole 422; the semiconductor refrigerator 5 is in threaded connection with the roller core 42; a rubber ring 53 for leakage prevention is further provided between the pressing sheet 52 and the roller core 42. The cold conductor 51 is in the form of a sheet, rod or helix.

The flattening rollers 2 in the present embodiment include an upper flattening roller and a side flattening roller; the number of the upper flattening rollers and the number of the side flattening rollers are not less than 2; the fan 3 is positioned right below the upper flattening roll; the number of the cooling rolls 4 is not less than 2.

In the operation of the embodiment, the high-temperature film is firstly cooled by the cooling roller 4, then passes through the flattening roller 2, and simultaneously passes through the flattening roller 2, and the fan 3 is used for air cooling the film; the film cools down faster when cooling roller 4, the condensed drop of water that probably has, fan 3 can also dry the film.

In the embodiment, the semiconductor cooler 5 and the cold conducting medium 7 are arranged in the cooling roller 4, so that the whole cooling roller 3 has lower temperature and better cooling effect; the rubber ring 53 can deform under the extrusion action of the pressing sheet 52 to firmly block the gap between the semiconductor refrigerator 5 and the roller core 42 and prevent the cold conducting medium 7 from leaking; the electric spiral blade 6 can enable the cold conducting medium 7 in the cavity 421 to flow, and the condition of uneven cold and heat is prevented from affecting the quality of the film.

In addition, it should be noted that the shapes of the components, the names of the components, and the like of the embodiments described in the present specification may be different, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A film cooling roller set comprises a rack (1), a flattening roller (2) and a fan (3); the flattening roller (2) is rotationally connected to the rack (1); the fan (3) is fixed on the frame (1); the device is characterized by also comprising a cooling roller (4) and a semiconductor refrigerator (5); the cooling roller (4) is rotationally connected with the rack (1); the cooling roller (4) comprises a roller sleeve (41), a roller core (42) and a cover plate (43); the roller sleeve (41) is sleeved on the roller core (42); the cover plate (43) is fixedly connected with the roller sleeve (41); a cavity (421) is arranged in the roller core (42); a cold conduction medium (7) is injected into the cavity (421); one end of the roller core (42) is also provided with a threaded hole (422); the threaded hole (422) is communicated with the cavity (421); one end of the semiconductor refrigerator (5) is provided with a pressing sheet (52), and the other end is provided with a cold conductor (51); the surface of the semiconductor refrigerator (5) is provided with a thread matched with the threaded hole (422); the semiconductor refrigerator (5) is in threaded connection with the roller core (42); a rubber ring (53) for leakage prevention is arranged between the pressing sheet (52) and the roller core (42).

2. Set of film cooling rollers according to claim 1, characterized in that inside the cavities (421) are also provided electrically driven helical blades (6) for enhancing the flow of the cold conducting medium (7).

3. Set of film cooling rollers according to claim 1, characterized in that the cold conductor (51) is sheet-like, rod-like or spiral-like.

4. Set of film cooling rollers according to claim 1, characterized in that the flattening rollers (2) comprise an upper flattening roller and a side flattening roller.

5. The film cooling roller set of claim 4, wherein the number of said upper and side flattening rollers is no less than 2.

6. Set of film cooling rollers according to claim 1, characterized in that the fan (3) is located directly below the upper nip roll.

7. Set of film cooling rollers according to claim 1, characterized in that the number of cooling rollers (4) is not less than 2.