CN213593445U

CN213593445U - Cooling roll of casting machine

Info

Publication number: CN213593445U
Application number: CN202022279709.3U
Authority: CN
Inventors: 孙加友
Original assignee: Wuxi Jiayou Packaging Material Co ltd
Current assignee: Wuxi Jiayou Packaging Material Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-07-02
Anticipated expiration: 2030-10-13

Abstract

The utility model relates to a chill roll of casting machine belongs to the field of casting machine, including chill roll body and inlet tube, the inside cavity of chill roll body sets up, the inside intermediate position fixedly connected with baffle of chill roll body, the baffle is with two cavities of the inside share of chill roll body, the both ends difference fixedly connected with back shaft of chill roll body, set up the connecting hole with the inside intercommunication of chill roll body on the back shaft terminal surface, the inlet tube passes the connecting hole and fixes with the baffle, be located on the inlet tube outer wall in the cavity along the inlet tube axis direction be fixed with a plurality of shower nozzles. This application guarantees the effect of the film forming quality of casting machine when having the curtain coating membrane of processing broad.

Description

Cooling roll of casting machine

Technical Field

The application relates to the field of casting machines, in particular to a cooling roller of a casting machine.

Background

The casting machine is a device which can make the polyester melt quickly close to the surface of a low-temperature and high-finish cooling roller by means of the external force action of an electrostatic adsorption device so as to make the melt quickly cool to form a solid film. Polyester melts must be cooled rapidly when formed into solid films or are susceptible to degradation.

At present, most of cooling rolls are used for rapidly cooling a melt to form a fixed film, one-way cooling water channels are mostly adopted for the cooling rolls, as shown in fig. 1, the cooling rolls of the casting machine comprise a cooling roll body 1, a water inlet pipe 11 and a water outlet pipe 12, the water inlet pipe 11 and the water outlet pipe 12 are respectively and fixedly connected to two ends of the cooling roll body 1, and when the cooling film is formed, cooling water flows to the other end from one end of the cooling roll body 1 so as to maintain the lower roll surface temperature of the cooling roll.

When the cast film is produced to be wider, a cooling roller with longer length is needed, and when cooling water flows from one end of the cooling roller to the other end of the cooling roller, the temperature of the cooling water is gradually increased in the flowing process due to heat exchange, so that the temperature difference between two ends of the roller surface is increased along with the lengthening of the length of the cooling roller, and the quenching film forming quality of the cast film is influenced.

SUMMERY OF THE UTILITY MODEL

In order to guarantee the film forming quality of a casting machine when processing a wider casting film, the application provides a cooling roller of the casting machine.

The application provides a chill roll of casting machine adopts following technical scheme:

the utility model provides a chill roll of casting machine, includes chill roll body and inlet tube, the inside cavity setting of chill roll body, the inside intermediate position fixedly connected with baffle of chill roll body, the baffle falls into two cavities with the chill roll body is inside, the both ends difference fixedly connected with back shaft of chill roll body, set up on the back shaft terminal surface with the connecting hole of the inside intercommunication of chill roll body, the inlet tube passes the connecting hole and fixes with the baffle, be located on the inlet tube outer wall in the cavity along the inlet tube axis direction be fixed with a plurality of shower nozzles.

Through adopting above-mentioned technical scheme, when the chill roll body carries out cooling operation, the cooling water gets into from the inlet tube, spout in the chill roll cavity from the shower nozzle on the inlet tube, the inlet tube is provided with a plurality of shower nozzles along the chill roll body axis on preventing the direction, the shower nozzle is with cooling water blowout to the cavity of chill roll body in, make cooling water and cavity inner wall take place the heat exchange, the baffle separates the chill roll body is inside, the cooling water begins outwards to flow from the baffle, make the distance that the cooling water flows shorten, the time of cooling water and chill roll inner wall contact reduces, make the cooling water intensification can not be too high, can make chill roll body outer wall keep in required temperature. The inside two cavities that divide into of chill roll body are cooled off respectively with the chill roll body outer wall of two cavities to the baffle, and the outer wall temperature of chill roll body differs by a little, can guarantee the film forming quality of casting machine.

Preferably, a first heat insulation layer is sleeved on the outer wall of the water inlet pipe.

Through adopting above-mentioned technical scheme, first insulating layer can prevent that the cooling water in the inlet tube and the cooling water in the cavity from taking place heat exchange, makes refrigerated efficiency improve.

Preferably, a plurality of spray heads are arranged on the outer wall of the water inlet pipe in the cavity along the circumferential direction of the outer wall of the water inlet pipe.

Through adopting above-mentioned technical scheme, be provided with a plurality of shower nozzles in inlet tube outer wall circumferencial direction, the shower nozzle has accelerated the conveying speed of cooling water, has improved the efficiency of cooling water cooling roller body.

Preferably, a plurality of fixing plates are fixedly connected to the inner wall of the chamber, and the fixing plates are distributed along the circumferential direction of the inner wall of the cooling roller body.

Through adopting above-mentioned technical scheme, the fixed plate distributes along the inner wall circumferencial direction of chill roll body, and the fixed plate has increased the area of contact of chill roll inner wall and cooling water, makes refrigerated efficiency improve.

Preferably, the sleeve that fixedly connected with axis and chill roll body axis are the same on the cavity inner wall, the sleeve divide into the cavity and be close to the first cavity of chill roll body outer wall and keep away from the second cavity of chill roll body outer wall, the shower nozzle is kept away from the one end of inlet tube and is stretched into in the first cavity, and the sleeve is kept away from the one end of baffle and is connected with the outlet pipe, and the outlet pipe stretches out from the connecting hole.

Through adopting above-mentioned technical scheme, when the chill roll body during operation, cold water spouts from the shower nozzle on the inlet tube, spouts in the first cavity, then flows out in the outlet pipe, the small of first cavity, and the cooling water flows in first cavity, and the speed that flows is fast, makes refrigerated efficiency increase.

Preferably, one end of the sleeve, which is far away from the partition plate, is provided with another water outlet pipe, and the two water outlet pipes are symmetrically arranged relative to the axis of the water inlet pipe.

Through adopting above-mentioned technical scheme, two outlet pipes go out water simultaneously, make the speed that the cooling water in the first cavity flowed increase, increased the cooling efficiency of chill roll body.

Through adopting above-mentioned technical scheme, the second insulating layer can reduce the cooling water in the first cavity and the second cavity produces the heat exchange, can make the cooling water cool off the chill roll body better.

Preferably, a third heat insulation layer is fixedly connected to the circumferential surface of the sleeve, which is close to the first chamber.

Through adopting above-mentioned technical scheme, third insulating layer and second insulating layer combined action reduce the cooling water in the first cavity and the second cavity produces the heat exchange, can make the cooling water better cool off the chill roll body.

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

1. the inner part of the cooling roller body is divided into two chambers by the partition plate, the outer walls of the cooling roller body of the two chambers are respectively cooled, the temperature difference of the outer walls of the cooling roller body is not large, and the film forming quality of the casting machine can be ensured;

2. the first heat insulation layer can prevent the cooling water in the water inlet pipe and the cooling water in the cavity from generating heat exchange, so that the cooling efficiency is improved;

3. the second heat insulation layer can reduce heat exchange between the cooling water in the first cavity and the second cavity, and the cooling water can better cool the cooling roller body.

Drawings

Fig. 1 is a schematic structural diagram of the background art.

Fig. 2 is a schematic structural diagram of a first embodiment of the present application.

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

Fig. 4 is a schematic structural diagram of a second embodiment of the present application.

Fig. 5 is a schematic structural view of a second insulating layer according to the second embodiment.

Description of reference numerals: 1. a cooling roll body; 11. a water inlet pipe; 12. a water outlet pipe; 13. a support shaft; 14. connecting holes; 2. a partition plate; 21. a chamber; 3. a spray head; 4. a first insulating layer; 5. a fixing plate; 6. a sleeve; 61. a first chamber; 62. a second chamber; 7. a second thermal insulation layer; 8. a third thermal insulation layer.

Detailed Description

The present application is described in further detail below with reference to figures 2-5.

Example one

The embodiment of the application discloses chill roll of casting machine. Referring to fig. 2 and 3, the cooling roll of casting machine includes cooling roll body 1 and inlet tube 11, and the difference fixedly connected with back shaft 13 in cooling roll body 1 both ends has seted up connecting hole 14 on the terminal surface of back shaft 13, and connecting hole 14 and the inside intercommunication of cooling roll, the inside cavity of cooling roll body 1, the inside intermediate position fixedly connected with baffle 2 of cooling roll body 1, baffle 2 falls into two cavities 21 with the cooling roll is inside. One end and the outside pipe connection that baffle 2 was kept away from to inlet tube 11, in inlet tube 11 runs through back shaft 13 and stretches into cavity 21, the one end fixed connection that inlet tube 11 is close to baffle 2 is on baffle 2, is located fixedly connected with shower nozzle 3 on the 11 outer walls of inlet tube in cavity 21, and shower nozzle 3 is provided with a plurality ofly along 1 axis direction of chill roll body. The two chambers 21 divided by the partition 2 are arranged identically.

When the cooling roller body 1 is cooled, cooling water enters from the water inlet pipe 11, is sprayed into the cavity 21 from the spray heads 3 on the water inlet pipe 11 and then flows out from the connecting holes 14, because the water inlet pipe 11 is provided with the plurality of spray heads 3 along the axis of the cooling roller body 1 in the direction, the spray heads 3 spray the cooling water into the cavity 21 of the cooling roller body 1, so that the cooling water is subjected to heat exchange with the inner wall of the cavity 21, and the cooling water flows out from the connecting holes 14 of the supporting shaft 13 after the heat exchange is finished. The partition plate 2 partitions the interior of the cooling roller body 1, and the cooling water flows outwards from the partition plate 2, so that the flowing distance of the cooling water is shortened, the contact time of the cooling water and the inner wall of the cooling roller is shortened, the temperature rise of the cooling water is not too high, and the outer wall of the cooling roller body 1 can be kept within a required temperature.

Referring to fig. 2 and 3, the first thermal insulation layer 4 is sleeved on the outer wall of the water inlet pipe 11, and the first thermal insulation layer 4 can prevent the cooling water in the water inlet pipe 11 and the cooling water in the chamber 21 from heat exchange, so that the cooling efficiency is reduced.

Be located and be provided with a plurality of shower nozzles 3 along 11 outer wall circumferencial direction of inlet tube on the 11 outer walls of inlet tube in the cavity 21, shower nozzle 3 has accelerated the transport speed of cooling water, has improved the efficiency of cooling water cooling chill roll body 1.

The inner wall of the cavity 21 is fixedly connected with a plurality of fixing plates 5, the fixing plates 5 are distributed along the circumferential direction of the inner wall of the cooling roller body 1, and the fixing plates 5 increase the contact area between the inner wall of the cooling roller body 1 and cooling water, so that the cooling efficiency is improved.

The implementation principle of the first embodiment of the application is as follows: when the cooling roller body 1 performs the cooling operation, the cooling water enters from the water inlet pipe 11, is sprayed from the spray head 3 on the water inlet pipe 11 into the cavity 21 of the cooling roller body 1, and then flows out from the connecting hole 14. The cooling water and the inner wall of the cavity 21 are subjected to heat exchange, after the heat exchange is finished, the cooling water flows out from the connecting hole 14 of the supporting shaft 13, the partition plate 2 separates the interior of the cooling roller body 1, the cooling water starts to flow outwards from the partition plate 2, the flowing distance of the cooling water is shortened, the contact time of the cooling water and the inner wall of the cooling roller is shortened, the temperature rise of the cooling water is not too high, and the outer wall of the cooling roller body 1 can be kept within the required temperature.

Example two

Referring to fig. 4 and 5, the difference from the first embodiment is that a sleeve 6 is fixedly connected to the inner wall of the chamber 21, and the axis of the sleeve 6 coincides with the axis of the cooling roll body 1. The sleeve 6 divides the cavity 21 into a first cavity 61 and a second cavity 62, the first cavity 61 is close to the outer wall of the cooling roller body 1, one end of the spray head 3, which is far away from the water inlet pipe 11, extends into the first cavity 61, one end of the sleeve 6, which is far away from the partition plate 2, is connected with the water outlet pipe 12, and the water outlet pipe 12 extends from the connecting hole 14.

The second heat insulation layer 7 is fixedly connected to the circumferential surface of the sleeve 6 close to the second chamber 62, when the cooling roller works, cold water is sprayed out from the spray head 3 on the water inlet pipe 11 to the first chamber 61 and then flows out from the water outlet pipe 12, the volume of the first chamber 61 is small, the cooling water flows in the first chamber 61, the flowing speed is high, and the cooling efficiency is improved. The second heat insulating layer 7 can reduce heat exchange between the cooling water in the first chamber 61 and the second chamber 62, and the cooling water can better cool the cooling roller body 1.

Referring to fig. 4 and 5, the third thermal insulation layer 8 is fixedly connected to the circumferential surface of the sleeve 6 close to the first chamber 61, and the third thermal insulation layer 8 and the second thermal insulation layer 7 work together to reduce heat exchange between the cooling water in the first chamber 61 and the second chamber 62, so that the cooling water can better cool the cooling roller body 1.

The end of the sleeve 6 remote from the partition 2 is provided with a further outlet pipe 12, and the two outlet pipes 12 are arranged symmetrically with respect to the axis of the inlet pipe 11. The two water outlet pipes 12 simultaneously discharge water, so that the flowing speed of the cooling water in the first cavity 61 is increased, and the cooling efficiency of the cooling roller body 1 is increased.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a chill roll of casting machine, includes chill roll body (1) and inlet tube (11), the inside cavity of chill roll body (1) sets up its characterized in that: the cooling roller comprises a cooling roller body (1), a partition plate (2) is fixedly connected to the middle position inside the cooling roller body (1), the partition plate (2) divides the cooling roller body (1) into two cavities (21), supporting shafts (13) are fixedly connected to the two ends of the cooling roller body (1) respectively, connecting holes (14) communicated with the cooling roller body (1) are formed in the end faces of the supporting shafts (13), a water inlet pipe (11) penetrates through the connecting holes (14) to be fixed to the partition plate (2), and a plurality of spray heads (3) are fixed to the outer wall of the water inlet pipe (11) in the cavities (21) along the axis direction of the water inlet pipe.

2. A chill roll for a casting machine according to claim 1, characterized in that: the outer wall of the water inlet pipe (11) is sleeved with a first heat insulation layer (4).

3. A chill roll for a casting machine according to claim 1, characterized in that: a plurality of spray heads (3) are arranged on the outer wall of the water inlet pipe (11) in the cavity (21) along the circumferential direction of the outer wall of the water inlet pipe (11).

4. A chill roll for a casting machine according to claim 1, characterized in that: the inner wall of the cavity (21) is fixedly connected with a plurality of fixing plates (5), and the fixing plates (5) are distributed along the circumferential direction of the inner wall of the cooling roller body (1).

5. A chill roll for a casting machine according to claim 1, characterized in that: fixedly connected with axis and the same sleeve (6) of chill roll body (1) axis on cavity (21) inner wall, sleeve (6) divide into first cavity (61) and second cavity (62) of keeping away from chill roll body (1) outer wall that are close to chill roll body (1) outer wall with cavity (21), the one end that inlet tube (11) were kept away from in shower nozzle (3) stretches into first cavity (61), and the one end that baffle (2) were kept away from in sleeve (6) is connected with outlet pipe (12), and outlet pipe (12) stretch out from connecting hole (14).

6. A chill roll for a casting machine according to claim 5, characterized in that: one end of the sleeve (6) far away from the partition plate (2) is provided with another water outlet pipe (12), and the two water outlet pipes (12) are symmetrically arranged relative to the axis of the water inlet pipe (11).

7. A chill roll for a casting machine according to claim 5, characterized in that: the circumferential surface of the sleeve (6) close to the second chamber (62) is fixedly connected with a second heat insulation layer (7).

8. The chill roll of a casting machine of claim 7, wherein: and a third heat insulation layer (8) is fixedly connected to the circumferential surface of the sleeve (6) close to the first chamber (61).