CN217021394U - Cooling device for PET sheet production line - Google Patents

Abstract

The utility model provides a cooling device for a PET (polyethylene terephthalate) sheet production line, which comprises a rack, a cooling roller and a baffle plate, wherein the cooling roller is rotatably arranged on the rack, a water-cooling cavity is arranged in the cooling roller, one end of the cooling roller is provided with a water inlet pipe communicated with the water-cooling cavity, and the other end of the cooling roller is provided with a water outlet pipe communicated with the water-cooling cavity; the baffle plates are arranged in the water cooling cavity in a vertically staggered manner in parallel. The cooling device for the PET sheet production line provided by the utility model adopts the cold water tank, the water pump, the cooling roller, the spray header and the corresponding pipeline, can recycle tap water to cool the PET sheet, and can effectively reduce the phenomenon of tap water waste; in addition, the baffle plate is arranged in the cooling roller, so that the stay time of water flow in the cooling roller can be effectively prolonged, the heat exchange time is prolonged, and a better cooling effect is achieved.

Description

Cooling device for PET sheet production line

Technical Field

The utility model relates to the technical field of PET (polyethylene terephthalate) sheet production lines, in particular to a cooling device for a PET sheet production line.

Background

In the storage and transportation of coil of strip material, the terminal surface of coil of strip material often can suffer damage, has very serious damage to coil of strip's integrality like this to also can produce bad influence to coil of strip's performance, consequently people have proposed the end backplate that is used for protecting coil of strip material terminal surface, during the packing, will hold the both ends at the coil of strip that the backplate is fixed, the end backplate comprehensive evaluation of discovery plastics system in the use is higher. For an end shield manufacturer, the end shield manufacturer needs to use a PET sheet production line to produce a square PET sheet, and then use a cutting machine to cut the square PET sheet into a circular end shield.

The PET sheet production line in the preparation of square PET sheets generally comprises the following steps: conveying raw materials into a PET sheet extruder, and extruding a PET sheet in a soft heating state by the PET sheet extruder; secondly, cooling and shaping the extruded PET sheet by a cooling device; and thirdly, conveying the cooled and shaped PET sheet to a cutting station to cut a square PET sheet. Current cooling device includes rotatable chill roll, during the use, let in the running water in order to cool off the PET sheet in to the chill roll, cause a large amount of running water extravagant, furthermore, the water inlet of current chill roll, the axis of delivery port and the axis collineation of chill roll inner chamber, therefore, the rivers that are in chill roll inner chamber middle part often flow with very fast speed, and the heat exchange needs a fixed time, so, the heat that leads to the roll surface of chill roll is difficult to be taken away by rivers, and then leads to the cooling effect poor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. To this end, the utility model proposes a cooling device for use in a PET sheet production line, comprising:

a frame;

the cooling roller is rotatably arranged on the rack, a water-cooling cavity is arranged in the cooling roller, one end of the cooling roller is provided with a water inlet pipe communicated with the water-cooling cavity, and the other end of the cooling roller is provided with a water outlet pipe communicated with the water-cooling cavity;

and the baffle plates are arranged in the water cooling cavity in a vertically staggered manner in parallel.

The water pump and the cold water tank are arranged on the rack, an opening is formed in the top end of the cold water tank, the fan is arranged at the top of the cold water tank, the water inlet end of the water pump is connected with the water outlet at the bottom of the cold water tank, the water outlet end of the water pump is connected with the water inlet pipe, and the water outlet pipe is connected with the spray head at the top of the cold water tank.

Furthermore, the both ends of chill roll are provided with hollow roller, the both ends of frame are provided with the support, the roller passes through the bearing and installs correspondingly on the support, one of them the tip of roller through intake rotary joint with the inlet tube links to each other, another the tip of roller through go out water rotary joint with the outlet pipe links to each other.

Furthermore, the number of the cooling rollers is three, and the three cooling rollers are sequentially arranged on the rack from left to right.

The cooling device for the PET sheet production line provided by the utility model adopts the cold water tank, the water pump, the cooling roller, the spray header and the corresponding pipelines, can recycle tap water to cool and shape the PET sheet, and can effectively reduce the phenomenon of tap water waste; in addition, the baffle plate is arranged in the cooling roller, so that the stay time of water flow in the cooling roller can be effectively prolonged, the heat exchange time is prolonged, and a better cooling effect is achieved.

Drawings

FIG. 1 is a schematic structural diagram of a cooling device used in a PET sheet production line provided by the utility model;

FIG. 2 is a schematic structural view of a chill roll provided by the present invention;

wherein, 1, a frame; 101. a support; 2. a cooling roll; 201. a water-cooled cavity; 202. a roll shaft; 203. a water inlet rotary joint; 204. a water outlet rotary joint; 205. a water inlet pipe; 206. a water outlet pipe; 207. a baffle plate; 208. an inflow header pipe; 209. an outflow header pipe; 3. a water pump; 301. an inflow pipe; 302. an outflow tube; 4. a cold water tank; 401. an opening; 402. a wire mesh; 403. a spray head; 404. a return pipe; 405. a fan; 5. and a conveying roller.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

As shown in fig. 1 and 2, the present invention provides a cooling device for use in a PET sheet production line, comprising: the cooling device comprises a rack 1, a cooling roller 2 and a baffle plate 207, wherein the cooling roller 2 is rotatably arranged on the rack 1, a water-cooling cavity 201 is arranged inside the cooling roller 2, one end of the cooling roller 2 is provided with a water inlet pipe 205 communicated with the water-cooling cavity 201, the other end of the cooling roller 2 is provided with a water outlet pipe 206 communicated with the water-cooling cavity 201, tap water flows into the water-cooling cavity through the water inlet pipe, and water in the water-cooling cavity flows out through the water outlet pipe; the baffle plates 207 are arranged in the water-cooling cavity 201 in a vertically staggered manner in parallel, and can effectively prolong the retention time of water flow in the cooling roller, so that the heat exchange time is prolonged, and a better cooling effect is achieved. Specifically, still include drive arrangement, drive arrangement with the chill roll links to each other, drive arrangement is used for the drive the chill roll rotates, and pivoted chill roll both can carry the PET sheet right, still can carry out the cooling and stereotype to the PET sheet.

The water cooling device is characterized by further comprising a water pump 3, a cold water tank 4 and a fan 405, wherein the water pump 3 and the cold water tank 4 are arranged on the rack 1, an opening 401 is formed in the top end of the cold water tank 4, a wire mesh 402 is arranged at the opening, the fan 405 is arranged at the top of the cold water tank 4, an inflow pipe 301 is arranged at the water inlet end of the water pump 3, the inflow pipe 301 is connected with a water outlet at the bottom of the cold water tank 4, an outflow pipe 302 is arranged at the water outlet end of the water pump 3, the outflow pipe 302 is connected with the water inlet pipe 205, the water outlet pipe 206 is connected with a spray head 403 at the top of the cold water tank 4, the spray head is located below the fan, the water pump can enable water in the cold water tank to flow into the water cooling cavity 201 through the inflow pipe 301, the outflow pipe 302 and the water inlet pipe 205, and the water in the water cooling cavity 201 flows to the spray head 403 through the water outlet pipe 206 and further falls into the cold water tank 4. The running water under the normal atmospheric temperature state has been contained in the cold water jar splendid attire promptly, the water pump can carry the cold water of cold water tank bottoms portion to the water-cooling intracavity and absorb heat, so that the cooling of PET sheet is stereotyped, absorb thermal rivers to the shower nozzle in, the tiny water column of shower nozzle blowout, tiny water column is at the in-process of whereabouts, the fan can be timely cools off tiny water column, tiny water column falls to the cold water of cold water tank bottoms portion in, can further be cooled off with cold water mixture, so circulate in order to cool off PET sheet 7.

Two ends of the cooling roller 2 are provided with hollow roller shafts 202, namely two roller shafts are provided, one roller shaft is positioned at one end of the cooling roller, the other roller shaft is positioned at the other end of the cooling roller, two ends of the roller shafts are in an opening shape, one roller shaft is communicated with one end of the water-cooling cavity 201, and the other roller shaft is communicated with the other end of the water-cooling cavity; the two ends of the rack 1 are provided with supports 101, the roll shafts 202 are mounted on the corresponding supports 101 through bearings, one of the roll shafts 202 is connected with the water inlet pipe 205 through a water inlet rotary joint 203, and the other roll shaft 202 is connected with the water outlet pipe 206 through a water outlet rotary joint 204. The water inlet rotary joint and the water outlet rotary joint are both commercially available products, and the main function of the rotary joint is to be capable of connecting a fixed pipeline and a rotary mechanical device in a sealing manner.

The number of the cooling rollers 2 is three, the three cooling rollers 2 are sequentially arranged on the rack 1 from left to right, the three cooling rollers are driven by the driving device to rotate, the rotating cooling rollers can convey the PET sheet to the right, and the PET sheet can be well cooled and shaped. Specifically, the rack is further provided with a conveying roller 6 which is rotatably arranged on the rack, the conveying roller is close to the cooling roller on the rightmost side, the cooling roller cools and shapes the PET sheet and then conveys the PET sheet to the conveying roller, and the conveying roller conveys the cooled PET sheet to the next station. It can be understood that the three cooling rollers are respectively provided with a water inlet pipe 205, the water inlet pipes of the three cooling rollers are respectively connected with a flow-in header pipe 208, and the flow-in header pipe 208 is connected with a flow-out pipe 302; it is three be provided with the outlet pipe on the chill roll respectively, it is three outlet pipe 206 on the chill roll links to each other with outflow house steward 209 respectively, outflow house steward 209 pass through the back flow 404 with shower nozzle 403 links to each other, and the water pump can be with the water pump in the cold water jar to the inflow house steward, and then carry and absorb heat in three chill roll to the cooling PET sheet, endothermic water flows to outflow house steward and through the back flow pipe flow to the shower nozzle through corresponding outlet pipe in the three chill roll, through the shower nozzle blowout cooling, falls to the cold water jar at last, so circulation, in order to cool off the PET sheet.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (4)

1. A cooling device for use in a PET sheet production line, comprising:

a frame (1);

the cooling roller (2) is rotatably arranged on the rack (1), a water-cooling cavity (201) is arranged inside the cooling roller (2), one end of the cooling roller (2) is provided with a water inlet pipe (205) communicated with the water-cooling cavity (201), and the other end of the cooling roller is provided with a water outlet pipe (206) communicated with the water-cooling cavity (201);

baffles (207), baffles (207) are staggered up and down in parallel in the water-cooling chamber (201).

2. The cooling device for the PET sheet production line according to claim 1, further comprising a water pump (3), a cold water tank (4) and a fan (405), wherein the water pump (3) and the cold water tank (4) are arranged on the rack (1), an opening (401) is formed in the top end of the cold water tank (4), the fan (405) is arranged at the top of the cold water tank (4), the water inlet end of the water pump (3) is connected with the water outlet at the bottom of the cold water tank (4), the water outlet end of the water pump (3) is connected with the water inlet pipe (205), and the water outlet pipe (206) is connected with a spray head (403) at the top of the cold water tank (4).

3. The cooling device used in the PET sheet production line according to claim 1, wherein the cooling roller (2) is provided with hollow roller shafts (202) at both ends, the frame (1) is provided with seats (101) at both ends, the roller shafts (202) are mounted on the corresponding seats (101) through bearings, one of the roller shafts (202) is connected to the water inlet pipe (205) at one end through a water inlet rotary joint (203), and the other roller shaft (202) is connected to the water outlet pipe (206) at the other end through a water outlet rotary joint (204).

4. The cooling device for use in the PET sheet production line according to claim 3, wherein the number of the cooling rollers (2) is three, and the three cooling rollers (2) are sequentially arranged on the frame (1) in a left-to-right direction.

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