CN108858946B

CN108858946B - Cooling roller

Info

Publication number: CN108858946B
Application number: CN201810773373.0A
Authority: CN
Inventors: 陈轻龙
Original assignee: Zhejiang Nanyi Plastic Machinery Co ltd
Current assignee: Zhejiang Nanyi Plastic Machinery Co ltd
Priority date: 2018-07-14
Filing date: 2018-07-14
Publication date: 2020-08-28
Anticipated expiration: 2038-07-14
Also published as: CN108858946A

Abstract

The invention discloses a cooling roller, which relates to a roller and adopts the technical scheme that the cooling roller comprises a roller body, wherein the roller body comprises an outer sleeve and an inner sleeve, one side of the inner sleeve is a water inlet side, the other side of the inner sleeve is a reflux side, the inner sleeve is provided with a plurality of water inlets at intervals around the axis of the inner sleeve, the outer surface of the inner sleeve is spirally provided with a water inlet groove at the water inlet position towards the reflux side, one side of the water inlet groove is spirally provided with a reflux groove, the reflux groove and the water inlet groove are communicated at the reflux side through a connecting channel, the inner sleeve is provided with a plurality of water outlets communicated with the reflux groove at intervals around the axis of the inner sleeve at the water. Only one layer of outer sleeve is arranged between the flowing cooling water and the material to be cooled, so that heat conduction is rapid, the cooling water can take away the heat of the material to be cooled conveniently, and the cooling effect is good. The temperature of the surface of the roller body is uniform, and the trouble that the material is different in shrinkage deformation degree due to different temperatures when the material is contacted everywhere is avoided.

Description

Cooling roller

Technical Field

The invention relates to a roller, in particular to a cooling roller.

Background

The production of the rolled film needs to sequentially carry out the working procedures of water passing, heating, temperature reduction and the like. The water passing process is used for improving the transparency of the film; the heating procedure is used for evaporating the water on the surface of the film to dryness; the cooling process is used for reducing the temperature of the film, and the trouble of deformation caused by cold contraction in the film winding process is avoided. The cooling device in the cooling process is just a cooling roller, and the working principle of the cooling roller is as follows: the surface temperature of the roller is lower by introducing cooling water into the roller, so that the heat of the film is taken away. The cooling roller can also be used in the fields of textile, paper printing, food packaging and the like, and has wide application range.

Chinese patent with publication number CN105437433B discloses a dewing-free cooling roller, which comprises a roller body, wherein a roller wall of the roller body forms a cylindrical hollow cavity, a cooling device is arranged on the roller wall, the cooling device is a cooling pipeline for cooling liquid to circulate in the cooling pipeline, the cooling pipeline comprises two straight pipes and a spiral coil connected between the two straight pipes, and a heat conducting layer is arranged in the roller wall or on the periphery of the roller wall.

The cooling roller leads the temperature of the outer surface of the roller body to be reduced by introducing cooling water into the cooling pipeline and leading the cooling pipeline to be clung to the inner wall of the roller body. The middle part of the cooling pipeline is in a spiral shape, so that the contact area between the cooling pipeline and the inner wall of the roller body is increased. However, when heat is conducted between the cooling water and the outer wall surface of the roller body, the cooling water needs to pass through the cooling pipeline and the roller wall, and the cooling effect is poor; and the cooling pipeline and the inner wall of the roller body are easy to separate, so that the cooling effect is lost, and improvement is needed.

Disclosure of Invention

In view of the above technical drawbacks, an object of the present invention is to provide a cooling roller having an excellent cooling effect.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a cooling roller, includes the roll body, the roll body includes overcoat and endotheca, endotheca one side is intake side, opposite side are the backward flow side, the endotheca is provided with a plurality of inlet openings around its axial lead interval in the side of intaking, the endotheca surface plays in inlet opening department towards the backward flow side spiral and is provided with the intake chamber, intake chamber one side spiral is provided with the backward flow groove, backward flow groove and intake chamber are through the interface channel intercommunication in the backward flow side, the endotheca is provided with a plurality of apopores that communicate with the backward flow groove around its axial lead interval in the side of intaking, the overcoat inner wall is hugged closely with the endothec.

By adopting the technical scheme, after the cooling water flows into the space between the inner sleeve and the outer sleeve from the water inlet, the cooling water flows to the backflow side along the water inlet groove, then enters the backflow groove through the connecting channel, flows back to the water inlet side and is discharged from the water outlet. Only one layer of outer sleeve is arranged between the flowing cooling water and the material to be cooled, so that heat conduction is rapid, the cooling water can take away the heat of the material to be cooled conveniently, and the cooling effect is good.

The design of backward flow groove for inlet opening and apopore lie in endotheca with one side, the installation of the water pipe of being convenient for, and also only need open roll body one side when the inspection condition of leaking can. The in-process that the cooling water flows along intake antrum and return flume, rises gradually along with thermal absorption temperature, because return flume and intake antrum are adjacent, and the heat can conduct between the cooling water in the return flume and the intake antrum, and then guarantees that roll body surface temperature everywhere is comparatively even, avoids the material to contact everywhere the temperature difference and the different trouble of shrink deformation degree.

Compared with a straight line design, the spiral design of the water inlet tank and the reflux tank increases the distance from the water inlet side to the water outlet side of the cooling water, so that more heat is absorbed and the cooling water is more fully utilized; the area of contact between intake antrum, backward flow groove and the overcoat is great, and consequently the intake antrum that the endotheca surface need set up and the quantity of backward flow groove reduce relatively under the area of contact of same cooling water and overcoat, and then reduce the quantity of inlet opening and apopore, avoid the endotheca to intake side structural strength and descend and the broken trouble of fracture, avoid simultaneously needing to insert the water pipe of endotheca too much and lead to the trouble that the roll body inner space is not enough.

The invention is further configured to: the utility model discloses a backflow device, including inlet tank, baffle, return channel, inlet tank middle part spiral be provided with endotheca fixed connection's baffle, the baffle divide into the inlet tank two and two inlet tanks do not have the intercommunication in the backward flow side with the inlet tank, the return channel is provided with two and is located the inlet tank both sides respectively, two the return channel passes through the backward flow passageway intercommunication in the inlet side, the apopore is located the backward flow passageway middle part.

Through adopting above-mentioned technical scheme, an inlet opening corresponds two inlet channels, and an apopore corresponds two counter-flow tanks, and then makes the quantity increase of inlet channel and counter-flow tank under the condition that does not increase inlet opening and apopore to make the width of inlet channel and counter-flow tank reduce, the cooling water flow reduces and the heat of being convenient for conducts fast, makes roll body surface temperature everywhere even, guarantees the cooling effect.

The invention is further configured to: and the adjacent intervals between the reflux grooves and the water inlet grooves are equal, and the width of the reflux grooves is equal to that of the water inlet grooves.

Through adopting above-mentioned technical scheme, the inflow equals with the backward flow volume, and the heat of the cooling water of being convenient for conducts fast between backward flow groove and intake chamber for roll body surface temperature everywhere is even, guarantees the cooling effect.

The invention is further configured to: the axis is worn to be equipped with in the roll body middle part, the axis is connected with the water distribution and connects towards the one end of intaking the side, the axis is tubulose and inner chamber and is gone out the water cavity, it is provided with the inlet tube to go out water cavity department, the water distribution connects and is provided with the play basin that communicates with a water cavity towards centraxonial one side, it is provided with the intake antrum that supplies the inlet tube card to go out the basin tank bottom, the water distribution connects the outside and is provided with a plurality of entries that communicate with the intake antrum and a plurality of and the export that goes out the water basin and communicate around its axial lead interval, connect through the inlet hose between entry and the inlet opening that corresponds, connect.

By adopting the technical scheme, the cooling water firstly enters the water inlet cavity along the water inlet pipe, then enters the water inlet groove through the water inlet hose, then enters the backflow groove, then enters the water outlet groove along the water outlet hose, and finally flows out of the water outlet cavity. Through the water distribution joint, gather a plurality of water inlet hose and water outlet hose, water inlet hose and water outlet hose need not longer, reduce its space that occupies in the chill roll to can guarantee a plurality of water inlet hose's inflow evenly distributed, avoid the inflow and the velocity of flow in the different intake tanks different and lead to the different trouble of roll body surface each department cooling effect.

The invention is further configured to: the water distribution joint is characterized in that a threaded portion is fixedly connected to one side, facing the center shaft, of the water distribution joint, an internal thread matched with the threaded portion is arranged on the inner wall of one side, facing the water distribution joint, of the center shaft, a gasket is arranged between the center shaft and the water distribution joint, a twisting portion is fixedly connected to one side, facing away from the center shaft, of the water distribution joint, and the cross section of the twisting portion is in a regular polygon shape.

By adopting the technical scheme, the water distribution joint is tightly connected with the middle shaft, cooling water is not easy to leak, and the water distribution joint can be unscrewed from the middle shaft, so that the water distribution joint which is corroded and aged can be conveniently replaced.

The invention is further configured to: the water inlet pipe is in threaded connection with the inner wall of the water inlet cavity, and the bottom of the water inlet cavity is conical.

By adopting the technical scheme, the connection between the water inlet pipe and the water distribution connector is tight, and the cooling water cannot be leaked into the water outlet groove in the flowing-in process.

The invention is further configured to: the utility model discloses a water distribution device, including inlet hose and outlet hose, the inlet hose connects with the outlet hose, the inlet hose is provided with the annular groove that supplies first joint card to go into with the opening part outside of export, be provided with the annular plate in the annular groove, fixedly connected with extrusion spring between annular plate and the annular groove tank bottom, first joint outside fixedly connected with fixed block, be provided with the spout that supplies fixed block card to go into on the annular groove lateral wall, the spout has the spread groove around the annular groove axial lead intercommunication towards one side of annular groove tank bottom, one side that the spout was kept away from to the spread groove has the fixed slot towards annular groove opening direction intercommunication, extrusion spring takes place elastic deformation when the fixed block card goes into the fixed slot.

Through adopting above-mentioned technical scheme, when the water hose that intakes and go out the water hose and need connect with the water distribution joint, earlier first joint card income ring channel, remove to the spout bottom until the fixed block, rotate first joint after that for the fixed block gets into the spread groove until being located the fixed slot downside, loosen first joint at last, first joint moves up under the elastic force effect of extrusion spring and goes into the fixed slot until the fixed block card, accomplishes the connection. Connect closely and first joint and water distribution and connect between can dismantling the connection, and then make the water distribution connect and can take off, be convenient for on the one hand connect inside washing to the water distribution, avoid bacterial growing, on the other hand is convenient for receive the rusty water distribution of erosion to connect and changes.

The invention is further configured to: the first joint is including the first fixed part that is used for fixed intake hose or outlet hose and be used for the card to go into the first connecting portion in the ring channel, be provided with a plurality of seal grooves on the ring channel inside wall, be provided with the sealing washer that is used for extrudeing first connecting portion in the seal groove.

Through adopting above-mentioned technical scheme, the compactness of being connected between first joint and the water distribution joint improves, avoids the trouble that the cooling water oozes.

The invention is further configured to: first connecting portion fixed connection is in the first fixed part outside, first connecting portion card forms the cavity the same with the fixed slot degree of depth between first fixed part and the water distribution joint when going into the ring channel.

By adopting the technical scheme, the cooling water firstly enters the cavity and then permeates between the first connecting part and the inner wall of the annular groove, and the containing capacity of the cavity is limited, so that the pressure of the sealing ring is greatly reduced, and the sealing effect is ensured; when the fixed block contacts with the bottom of the sliding groove, the first fixed part and the water distribution joint are tightly attached to the surface and supported, and further troubles of bending and breaking caused by overlarge stress of the fixed block are avoided.

The invention is further configured to: the equal fixedly connected with second of the one end of water inlet hose and water outlet hose orientation endotheca connects, the second connects including the second fixed part that is used for fixed water inlet hose or water outlet hose and be used for the second connecting portion with the endotheca connection, inlet opening and water outlet department are provided with the thread bush with second connecting portion threaded connection.

Through adopting above-mentioned technical scheme, ageing, damaged intake hose and play water hose can be pulled down and change, and the dismouting is convenient fast simultaneously.

In conclusion, the invention has the following beneficial effects:

1. through the arrangement of the spiral water inlet groove and the spiral water return groove, the temperature of all parts on the surface of the roller body is uniform, a large amount of heat can be taken away in the flowing process of cooling water, and the cooling effect is good;

2. through the arrangement of the water distribution joint, the disorder caused by too much and too long pipeline in the roller body is avoided;

3. the water inlet hose, the water outlet hose and the water distribution joint can be detached, so that the replacement is convenient, and the service life of the cooling roller is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic view of a portion of the first embodiment with the outer cover removed;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is an enlarged schematic view of region B of FIG. 3;

FIG. 5 is a schematic structural diagram of a water distribution joint, a water inlet hose and a water outlet hose in the first embodiment;

FIG. 6 is an exploded view of the water distribution joint, the first joint, the second joint, the thread bush and the water inlet hose of the second embodiment;

FIG. 7 is an enlarged schematic view of region C of FIG. 6;

FIG. 8 is an exploded view, partly in section, from the perspective of FIG. 7;

fig. 9 is a schematic structural view of a first joint, a second joint, and a threaded sleeve according to a second embodiment.

Description of reference numerals: 1. a roller body; 11. a jacket; 12. an inner sleeve; 121. a water inlet side; 122. a reflux side; 123. a water inlet hole; 124. a water inlet groove; 125. a reflux tank; 126. a connecting channel; 127. a water outlet hole; 128. a partition plate; 129. a return channel; 2. a middle shaft; 21. a water outlet cavity; 3. A water distribution joint; 301. a water outlet groove; 302. a water inlet cavity; 303. an inlet; 304. an outlet; 305. a threaded portion; 306. a twisting part; 307. an annular groove; 308. an annular plate; 309. a compression spring; 310. a chute; 311. connecting grooves; 312. fixing grooves; 313. a sealing groove; 314. a seal ring; 4. a water inlet pipe; 5. a water inlet hose; 6. a water outlet hose; 7. a gasket; 8. a first joint; 81. a first fixed part; 82. a first connection portion; 821. a fixed block; 9. a second joint; 91. a second fixed part; 92. a second connecting portion; 10. and (4) a threaded sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

a cooling roller, as shown in figure 1 and figure 2, comprises a roller body 1, wherein the roller body 1 comprises a cylindrical inner sleeve 12 and an outer sleeve 11 sleeved outside the inner sleeve 12, and the inner wall of the outer sleeve 11 is closely attached to the outer surface of the inner sleeve 12. One side of the inner sleeve 12 is a water inlet side 121, the other side is a water return side 122, four water inlet holes 123 are arranged on the inner sleeve 12 at equal intervals around the axial lead of the water inlet side 121, and water inlet grooves 124 are spirally arranged on the outer surface of the inner sleeve 12 at the positions of the water inlet holes 123 and towards the water return side 122. A backflow groove 125 is spirally arranged on one side of the water inlet groove 124, the backflow groove 125 is communicated with the water inlet groove 124 through a connecting channel 126 on the backflow side 122, and four water outlet holes 127 communicated with the backflow groove 125 are arranged on the water inlet side 121 of the inner sleeve 12 at intervals around the axial lead thereof. After flowing into the water inlet groove 124 from the water inlet hole 123, the cooling water enters the water return groove 125 through the connecting channel 126 and is discharged from the water outlet hole 127, and the continuously flowing cooling water removes heat of the material on the surface of the jacket 11 to realize the cooling effect.

As shown in fig. 2, a partition 128 fixedly connected to the inner sleeve 12 is spirally disposed in the middle of the water inlet groove 124, the partition 128 divides the water inlet groove 124 into two water inlet grooves 124, the two water inlet grooves 124 are not communicated with the water return side 122, the two water return grooves 125 are disposed at two sides of the water inlet groove 124, the two water return grooves 125 are communicated with the water inlet side 121 through a water return channel 129, and the water outlet hole 127 is disposed in the middle of the water return channel 129. The surface of the roller body 1 is equivalent to eight water inlet grooves 124 and eight backflow grooves 125, one water inlet hole 123 corresponds to two water inlet grooves 124, one water outlet hole 127 corresponds to two backflow grooves 125, and the water inlet grooves 124 and the backflow grooves 125 are arranged at intervals. After flowing through the inlet holes 123, the cooling water splits and enters the two inlet grooves 124, then flows into the return grooves 125 on both sides through the return channels 129, and finally merges at the outlet holes 127 to flow out. The adjacent return grooves 125 and the adjacent inlet grooves 124 are equal in distance, and the width of the return groove 125 is equal to that of the inlet groove 124. The inflow and the backflow are equal, so that the heat of the cooling water is rapidly conducted between the backflow groove 125 and the water inlet groove 124, the temperature of each part of the surface of the roller body 1 is uniform, and the cooling effect is good.

As shown in fig. 3 and 4, a central shaft 2 coaxially penetrates through the middle of the roller body 1, one end of the central shaft 2 facing the water inlet side 121 is located inside the roller body 1 and is connected with a water distribution joint 3, and the other end of the central shaft is located outside the roller body 1 and is connected with a rotary joint. The middle shaft 2 is tubular, the inner cavity of the middle shaft is a water outlet cavity 21, and a water inlet pipe 4 is arranged at the position of the water outlet cavity 21. One side of the water distribution connector 3 facing the center shaft 2 is provided with a water outlet groove 301 communicated with the water outlet cavity 21, the bottom of the water outlet groove 301 is provided with a water inlet cavity 302 for clamping the water inlet pipe 4, the outer side of the water distribution connector 3 is provided with four inlets 303 communicated with the water inlet cavity 302 and four outlets 304 communicated with the water outlet groove 301 at equal intervals around the axis line, the inlets 303 are connected with the corresponding water inlet holes 123 through water inlet hoses 5, and the outlets 304 are connected with the corresponding water outlet holes 127 through water outlet hoses 6. The cooling water enters the inlet chamber 302 along the inlet tube 4, enters the inlet channel 124 through the inlet hose 5, enters the return channel 125, enters the outlet channel 301 along the outlet hose 6, and finally flows out of the outlet chamber 21. Through water distribution joint 3, gather a plurality of hoses 5 and the hose 6 that goes out of intaking, intake hose 5 need not longer with the hose 6 that goes out of water, reduces its space that occupies in the chill roll to can guarantee the inflow evenly distributed of a plurality of hoses 5 that intake, avoid the inflow and the velocity of flow in the different intake tanks 124 different and lead to the trouble that the cooling effect is different in roll body 1 surface each department.

As shown in fig. 3 and 4, a cylindrical threaded portion 305 with an external thread is fixedly connected to one side of the water distribution joint 3 facing the center shaft 2, and an internal thread matching with the threaded portion 305 is provided on an inner wall of the center shaft 2 facing the water distribution joint 3, so that the water distribution joint 3 can be detached from the center shaft 2. A washer 7 sleeved on the threaded part 305 is arranged between the middle shaft 2 and the water distribution joint 3, and the washer 7 plays a role in protection. The water inlet pipe 4 is connected with the inner wall of the opening of the water inlet cavity 302 through screw threads, so that the water inlet pipe 4 and the water distribution joint 3 can be separated. The bottom of the water inlet cavity 302 is set to be conical, so that the impact strength of water flow on the bottom of the water inlet cavity 302 is reduced, and the service life of the water distribution connector 3 is prolonged. One side fixedly connected with that water distribution connects 3 deviates from axis 2 twists portion 306, twists portion 306 cross-section and be regular hexagon, and then be convenient for water distribution connects 3 and twist, twist portion 306 still plays the effect of strengthening water distribution connects 3 bottoms simultaneously, improves its life.

As shown in fig. 2 and 5, one end of the water inlet hose 5 is fixedly connected to the inner wall of the inlet 303, and the other end is fixedly connected to the fixing sleeve at the water inlet 123. One end of the water outlet hose 6 is fixedly connected with the inner wall of the outlet 304, and the other end is fixedly connected with a fixing sleeve at the position of the water outlet hole 127.

The working process is as follows:

after flowing into the inlet chamber 302 from the inlet pipe 4, the cooling water is split into two inlet channels 124 through the inlet 303, the inlet hose 5 and the inlet opening 123, then flows to the return side 122, flows into the return channel 125 through the return channel 129, then the two cooling water flows are merged at the outlet hole 127 and flow into the outlet hose 6, and finally flows out along the central axis 2 through the outlet 304 and the outlet channel 301.

Example two:

as shown in fig. 6, the water inlet hose 5 and the water outlet hose 6 are both fixedly connected with a first joint 8 at one end facing the water distribution joint 3 and a second joint 9 at the other end. The water inlet hole 123 and the water outlet hole 127 are both fixedly connected with a threaded sleeve 10 with internal threads, and the threaded sleeve 10 is in threaded fit with the second connector 9.

As shown in fig. 7 and 8, the inlet 303 and the outlet 304 are provided with annular grooves 307 on the outer sides of the openings thereof, into which the first joint 8 is inserted. An annular plate 308 is arranged in the annular groove 307, and a pressing spring 309 is fixedly connected between the annular plate 308 and the bottom of the annular groove 307. The first joint 8 includes a first fixing portion 81 for fixing the inlet hose 5 or the outlet hose 6 and a first connecting portion 82 for being snapped into the annular groove 307. A fixed block 821 is fixedly connected to the outer side of the first connecting portion 82, a sliding groove 310 into which the fixed block 821 is clamped is arranged on the outer side wall of the annular groove 307, a connecting groove 311 is communicated with one side, facing the bottom of the annular groove 307, of the sliding groove 310 around the axial line of the annular groove 307, a fixed groove 312 is communicated with one side, away from the sliding groove 310, of the connecting groove 311 in the opening direction of the annular groove 307, and the pressing spring 309 is elastically deformed when the fixed block 821 is. Two sealing grooves 313 are arranged on the inner side wall of the annular groove 307, a sealing ring 314 used for extruding the first connecting part 82 is arranged in each sealing groove 313, the connection tightness between the first connector 8 and the water distribution connector 3 is improved, and the trouble of cooling water seepage is avoided.

When water inlet hose 5 and water outlet hose 6 need to be connected with water distribution joint 3, first joint 8 card is gone into ring channel 307 earlier, move to spout 310 bottom until fixed block 821, rotate first joint 8 afterwards, make fixed block 821 get into spread groove 311 until being located fixed slot 312 downside, loosen first joint 8 at last, first joint 8 moves up under the elastic force effect of extrusion spring 309 until fixed block 821 card goes into fixed slot 312, fixed block 821 then receives the spacing and unable rotation of fixed slot 312 lateral wall, thereby make first joint 8 and water distribution joint 3 be difficult to separate, accomplish the connection. First joint 8 connects 3 with the water distribution and connects to be connected closely and can dismantle each other, and then makes the water distribution connect 3 and can take off, is convenient for on the one hand to connect 3 inside washing of water distribution, avoids bacterial growing, and on the other hand is convenient for receive the rusty water distribution of erosion to connect 3 and changes.

As shown in fig. 9, the first connecting portion 82 is fixedly connected to the outside of the first fixing portion 81, and when the first connecting portion 82 is inserted into the annular groove 307, a cavity having the same depth as the fixing groove 312 is formed between the first fixing portion 81 and the water distribution joint 3. The cooling water enters the cavity firstly and then permeates between the first connecting part 82 and the inner wall of the annular groove 307, and the accommodating capacity of the cavity is limited, so that the pressure of the sealing ring 314 is greatly reduced, and the sealing effect is ensured; when the fixing block 821 contacts with the bottom of the sliding groove 310, the first fixing portion 81 is closely attached to and supported by the surface of the water distribution joint 3, so that the trouble that the fixing block 821 is bent and broken due to too large stress is avoided. The water inlet hose 5 and the water outlet hose 6 are fixedly connected with a second joint 9 towards one end of the inner sleeve 12, and the second joint 9 comprises a second fixing part 91 for fixing the water inlet hose 5 or the water outlet hose 6 and a second connecting part 92 for being in threaded connection with the threaded sleeve 10. The first fixing part 81 and the second fixing part 91 are both U-shaped in cross section, and when the water inlet hose 5 and the water outlet hose 6 are clamped in the U-shaped first fixing part 81 and the second fixing part 91, the first connector 8 and the second connector 9 can be fixedly connected to the end parts of the water inlet hose 5 or the water outlet hose 6.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A chill roll comprising a roll body (1), characterized in that: the roller body (1) comprises an outer sleeve (11) and an inner sleeve (12), one side of the inner sleeve (12) is a water inlet side (121), the other side of the inner sleeve (12) is a water return side (122), a plurality of water inlet holes (123) are formed in the inner sleeve (12) at intervals around the axial lead of the inner sleeve (121), a water inlet groove (124) is spirally formed in the outer surface of the inner sleeve (12) at the position of the water inlet hole (123) and faces the water return side (122), a water return groove (125) is spirally formed in one side of the water inlet groove (124), the water return groove (125) and the water inlet groove (124) are communicated with each other through a connecting channel (126), a plurality of water outlet holes (127) communicated with the water return groove (125) are formed in the inner sleeve (12) at intervals around the axial lead of the inner sleeve (121), the inner wall of the outer sleeve (11) is tightly attached to the outer surface of the inner sleeve (12), a partition plate, the baffle (128) divide into two and two intake troughs (124) with intake trough (124) and do not have the intercommunication in backward flow side (122), backward flow groove (125) are provided with two and are located intake trough (124) both sides respectively, two backward flow groove (125) are in intake side (121) through backward flow passageway (129) intercommunication, apopore (127) are located backward flow passageway (129) middle part, roller body (1) middle part is worn to be equipped with axis (2), axis (2) are connected with water distribution joint (3) towards the one end of intake side (121), axis (2) are tubulose and inner chamber for going out water cavity (21), it is provided with inlet tube (4) to go out water cavity (21) department, water distribution joint (3) are provided with the play basin (301) that communicate with play water cavity (21) towards one side of axis (2), it is provided with inlet chamber (302) that supply inlet tube (4) card to go out water trough (301) tank bottom, a plurality of inlets (303) communicated with the water inlet cavity (302) and a plurality of outlets (304) communicated with the water outlet groove (301) are arranged at intervals around the axial lead of the water distribution joint (3) outside the water distribution joint, the inlet (303) is connected with the corresponding water inlet hole (123) through a water inlet hose (5), the outlet (304) is connected with the corresponding water outlet hole (127) through a water outlet hose (6), one side of the water distribution joint (3) facing the middle shaft (2) is fixedly connected with a thread part (305), the inner wall of one side of the middle shaft (2) facing the water distribution joint (3) is provided with an internal thread matched with the thread part (305), a gasket (7) is arranged between the middle shaft (2) and the water distribution joint (3), one side of the water distribution joint (3) departing from the center shaft (2) is fixedly connected with a twisting part (306), and the cross section of the twisting part (306) is in a regular polygon shape.

2. A chill roll according to claim 1, wherein: the intervals between the adjacent backflow grooves (125) and the adjacent water inlet grooves (124) are equal, and the widths of the backflow grooves (125) and the widths of the water inlet grooves (124) are equal.

3. A chill roll according to claim 1, wherein: the water inlet pipe (4) is in threaded connection with the inner wall of the water inlet cavity (302), and the bottom of the water inlet cavity (302) is conical.

4. A chill roll according to claim 1, wherein: the water distribution device is characterized in that the water inlet hose (5) and the water outlet hose (6) are fixedly connected with a first joint (8) towards one end of the water distribution joint (3), the outer sides of openings of the inlet (303) and the outlet (304) are respectively provided with a ring groove (307) for the first joint (8) to be clamped into, a ring plate (308) is arranged in the ring groove (307), an extrusion spring (309) is fixedly connected between the ring plate (308) and the groove bottom of the ring groove (307), the outer side of the first joint (8) is fixedly connected with a fixed block (821), a sliding groove (310) for the fixed block (821) to be clamped into is arranged on the outer side wall of the ring groove (307), the sliding groove (310) is communicated with a connecting groove (311) around the axial lead of the ring groove (307) towards one side of the groove (307), one side, far away from the sliding groove (310), is communicated with, the pressing spring (309) is elastically deformed when the fixing block (821) is clamped into the fixing groove (312).

5. A chill roll according to claim 4, wherein: first joint (8) are including first fixed part (81) that is used for fixed intake hose (5) or outlet hose (6) and be used for going into first connecting portion (82) in ring channel (307) of card, be provided with a plurality of seal grooves (313) on ring channel (307) inside wall, be provided with sealing washer (314) that are used for extrudeing first connecting portion (82) in seal groove (313).

6. A chill roll according to claim 5, wherein: first connecting portion (82) fixed connection is in first fixed part (81) outside, first connecting portion (82) form the cavity the same with fixed slot (312) degree of depth between first fixed part (81) and water distribution joint (3) when going into annular groove (307).

7. A chill roll according to claim 4, wherein: the utility model discloses a water inlet hose, including the first connecting portion (92) that is used for fixing the second fixed part (91) of water inlet hose (5) or water outlet hose (6) and is used for being connected with endotheca (12), inlet opening (123) and apopore (127) department are provided with threaded sleeve (10) with second connecting portion (92) threaded connection, the equal fixedly connected with second joint (9) of one end of inlet hose (5) and water outlet hose (6) orientation endotheca (12), second joint (9) are including being used for fixing second fixed part (91) of water inlet hose (5) or water outlet hose (6) and being used.