Non-drift-diameter large-drawing-amount water diversion type calendering roller

Abstract

The invention relates to a non-drift-diameter large-drawing-amount water diversion type calendering roller. Comprising a calendaring roller body, calendaring roller shaft heads, a water distribution device and an adjusting mechanism, the two ends of the calendaring roller body are connected with the calendaring roller shaft heads, the water distribution device is placed in the calendaring roller body and comprises a water distribution core pipe, water distribution core wing plates and springs, a plurality of positioning grooves are formed in the side wall of the water distribution core pipe in the axial direction, and the water distribution core wing plates are placed in the positioning grooves. A plurality of water outlet holes are formed between the adjacent positioning grooves in the water distribution core pipe, springs are installed between the adjacent water distribution core wing plates, and adjusting mechanisms are installed at the two ends of the water distribution device and used for adjusting the water distribution core wing plates to move inwards or outwards along the positioning grooves in the side wall of the water distribution core pipe. The water distribution core wing plate of the water distribution device in the calendering roller body can stretch out or retract in the positioning groove, and the water distribution core wing plate, the water distribution core pipe and the limiting sleeve are assembled together, can be freely fed into the calendering roller to be assembled and can also be integrally pulled out, so that the water distribution core is convenient to replace and maintain.

Description

Technical Field

[0001] The present invention relates to a forming device used in glass production, specifically a non-through-diameter large drawing capacity water-dividing calender roll. Background Art

[0002] Currently, the forming device for calendered glass or microcrystalline plates is a calender with two upper and lower rollers. The molten liquid glass is extruded into glass with different thicknesses through the two rotating upper and lower rollers. In normal glass production, the calender rolls rotate continuously, and the upper and lower calender rolls are subjected to heat transfer by conduction and radiation of the glass liquid (temperature about 1100 °C), and the surface temperature of the calender rolls is also about 700 °C. Therefore, to prevent the calender rolls from bending, the calender rolls must be cooled. Usually, the cooling of the calender rolls is achieved by passing water inside the calender rolls. According to the prior art, the water channels for internal water cooling of the calender rolls can be made into two types: through-diameter structure and non-through-diameter structure. As Figure 11 is the through-diameter structure inside the calender roll. This structure can be directly forged into an integral structure, and the inner diameter of the calender roll is a straight-line structure. Since the gap between the two rollers is very small, only thin-wall bearing bushes 200 can be used on both sides of this through-diameter structure calender roll to prevent the bearing bush positions on both sides of the upper and lower calender rolls 100 from colliding, resulting in too large a gap between the upper and lower two rollers and being unable to produce thin glass. Figure 12 is the non-through-diameter structure inside the calender roll. The upper and lower calender rolls 100 and the shaft heads 300 of this structure are separately processed and manufactured, and then the roll body and the shaft head are fixed together by welding or bolt connection. The inner diameter of this calender roll is a non-straight-line structure, and there are steps 400 on both sides of the roll body. Usually, thick-wall bearing 500 structures are used on both sides of this non-through-diameter structure calender roll with steps. To prevent the bearing 500 positions on both sides of the upper and lower calender rolls 100 from colliding and avoiding the problem of being unable to produce thin glass, usually the outer diameter of the roll needs to be made larger. To ensure a certain wall thickness, the inner diameter of the roll body usually also needs to be large, which results in a step between the shaft head and the roll body position. During actual use, Figure 11 When the roll adopts a through-diameter structure, due to the use of thin-wall bearing bush structures on both sides, friction occurs between the bearing bush and the rotating roll shaft head, resulting in very frequent oil injection and high production costs. Figure 12 When the roll adopts a non-through-diameter structure, due to the use of thick rolling bearing structures, the roll rotates inside the inner ring of the bearing, and the friction generated by the rolling of the rolling elements inside the bearing is small. Therefore, adding some lubricating grease regularly can maintain use for a long time. At the same time, bearing structures are used at both ends of the roll, and the motor load is also small, making the equipment energy consumption low. Therefore, this non-through-diameter bearing structure has lower production costs and has been widely used by customers. Figure 11 And Figure 12 , regardless of which roll structure, water needs to be passed inside the roll for cooling to maintain a certain temperature on the roll surface. Therefore, research Figure 12Cooling of the non-through-diameter roller structure becomes even more important.

[0003] In actual production, since the drawing rate of each kiln is very important, the larger the drawing rate, the more fuel is saved per unit tonnage of melting, and the lower the glass manufacturing cost. Usually, the daily drawing rate of glass is calculated by the following formula:

[0004] Drawing rate (D) = width of the glass ribbon (L) * thickness of the glass (T) * drawing speed (S) * density of the glass (ρ).

[0005] For glass with the same ribbon width and the same thickness, in order to reduce production costs, increasing the drawing speed of the glass is the most direct method. However, a fast drawing speed will also cause a long contact time between the calender roll and the glass, resulting in an excessively high surface temperature of the calender roll and causing production accidents. Therefore, it is crucial to increase the cooling intensity of the water inside the calender roll for the roll. The greater the cooling intensity, the higher the drawing speed can be increased, thereby increasing the drawing rate and reducing production costs.

[0006] For Figure 12 the cooling method of the non-through-diameter roller, there are three existing cooling structures, namely, an integral fixed water distribution core, an integral pull-out water distribution core, and a central steel pipe that can be pulled out separately. For example, the water distribution core of the calender roll provided in the publication number "CN206486421 U" is a cross-shaped water distribution core with an integral structure including four water distribution plates. The water distribution core is hollow in the axial direction and is inserted with a water pipe with water outlet holes; the water distribution core of the water distribution type calender roll provided in the publication number "CN203976605 U" is also a cross-shaped water distribution core with an integral structure, and a plurality of groups of water outlet holes are provided on the circumference in the axial direction in the middle of the water distribution core; the water distribution core on the calender roll of the calender provided in the publication number "CN206915986 U" is fixed on the inner wall of the calender roll through a fixed disc, and the middle water inlet pipe is designed as a pull-out structure separated from the wing plate of the water distribution core.

[0007] The above devices and the existing technologies still have the following problems in the implementation process:

[0008] 1. The outer diameter of the middle water distribution pipe 700 of the water distribution core 600 is small, and the cavity outside the water distribution pipe is large. The cross-sectional area of the cavity is as Figure 13 shown in the water flow cavity 900 in the middle. Due to the slow water flow velocity, the cooling water cools the roll body slowly, which is not suitable for the forming process production of glass with a large drawing rate.

[0009] 2. The water distribution core 600 (including the water distribution core wing plate) is an integral structure, and the water distribution core is fixedly welded inside the upper and lower calendering rollers 100. After this structure is assembled, it cannot be disassembled. When the glass temperatures at the outlets of each kiln furnace of the water inlet pipe are different, and when the positions of the water outlet holes on the middle water inlet circular pipe are inaccurate, it will cause poor cooling of the calendering roller and bending deformation. To take out the middle water distribution core again and adjust the positions of the water outlet holes, the bolts tied to both sides of the calendering roller must be removed. However, due to the influence of thermal expansion and contraction during on-line use of the calendering roller, the bolts are basically expanded and stuck, and the bolts cannot be taken out, let alone the middle water distribution core. In this case, due to the inaccurate positions of the water outlet holes on the middle circular pipe of the water distribution core, the phenomenon of batch scrapping of calendering rollers often occurs.

[0010] 3. The water distribution core 600 (including the water distribution core wing plate) is an integral structure, and the water distribution core can be pulled out as a whole. In this structure, the water distribution pipe 700 and the water distribution core wing plate 800 (or called the water distribution plate) are fixed together and can be pulled out as a whole from the shaft head of the calendering roller. However, because there are steps inside the calendering roller and the inner diameter at the shaft head position is smaller than the inner diameter of the roller body, the maximum outer diameter of the water distribution core wing plate (or water distribution plate) should be smaller than the inner diameter of the shaft head. As Figure 14 shown, this causes the water distribution core wing plate 800 not to fit tightly against the inner walls of the upper and lower calendering rollers 100, with a large gap, and thus it is impossible to divide the inside of the calendering roller into four or more independent cavities. There is a phenomenon of "water leakage" between the water distribution plates, which affects the cooling of the calendering roller.

[0011] 4. When the water distribution core 600 is an (internally welded) integral structure and the upper water outlet holes need to be cleaned due to blockage by impurities in the water, the water distribution core cannot be pulled out individually or as a whole. If the blocked water holes cannot be cleaned thoroughly, it will also cause the calendering roller to be unusable.

[0012] 5. When the inner wall of the calendering roller accumulates scale and needs to be cleaned or processed, since the water distribution core is fixedly welded to the inner wall of the calendering roller, subsequent cleaning or maintenance of the calendering roller cannot be carried out, resulting in the scrapping of the calendering roller and increasing the production cost. Summary of the Invention

[0013] The purpose of the present invention is to solve the problems raised in the above-mentioned background technology, and provide a non-through-diameter large drawing capacity water distribution type calendering roller. The water distribution device of this calendering roller and the calendering roller body are separately arranged, and the calendering roller has good cooling effect and is convenient for maintenance.

[0014] The technical solution of the present invention:

[0015] A non-through-diameter large drawing capacity water-dividing calender roll, comprising a calender roll body, calender roll shaft heads, a water-dividing device and an adjusting mechanism. The two ends of the calender roll body are connected to the calender roll shaft heads. The water-dividing device is placed inside the calender roll body. The water-dividing device is divided into a water-dividing core tube, water-dividing core wing plates and springs. The side wall of the water-dividing core tube is axially provided with a plurality of positioning grooves. The water-dividing core wing plates are placed in the positioning grooves. A plurality of water outlet holes are formed between adjacent positioning grooves on the water-dividing core tube. Springs are installed between adjacent water-dividing core wing plates. Adjusting mechanisms are installed at both ends of the water-dividing device. The adjusting mechanism is used to adjust the water-dividing core wing plates to move inwards or outwards along the positioning grooves on the side wall of the water-dividing core tube.

[0016] Advantages of the present invention:

[0017] 1. The calender roll of the present application adopts a non-through-diameter roll form with a rolling bearing structure. The water-dividing core wing plates of the water-dividing device inside the calender roll body can extend or retract in the positioning grooves. The water-dividing core wing plates, the water-dividing core tube and the limit sleeve are assembled together and can be freely fed into the calender roll for assembly, and can also be integrally withdrawn, which is convenient for the replacement and maintenance of the water-dividing core, and is also convenient for the cleaning, maintenance or processing of the inner wall of the calender roll. At the same time, since the adjusting cone sleeve presses against the water-dividing core wing plates to be tightly attached to the inner wall of the calender body, the loss caused by the scrapping of the calender roll is reduced, and the manufacturing cost of the enterprise is reduced.

[0018] 2. The water-dividing core tube of the calender roll of the present application adopts a thick-walled water-dividing core tube, which increases the outer diameter size of the tube and reduces the water cavity capacity between the outer diameter of the tube and the inner wall of the calender roll body, thereby increasing the water flow speed and enhancing the cooling effect, solving the production problems caused by the too high temperature of the calender roll, enabling the drawing speed to be faster, the drawing capacity to be higher, and the unit production cost to be lower.

[0019] 3. After the water-dividing core wing plates of the calender roll of the present application are fed into the interior of the calender roll, by turning the adjusting bolt, the adjusting cone sleeve moves inwards and presses against the water-dividing core wing plates to open. The water-dividing core wing plates can open and tightly adhere to the inner wall of the calender roll, forming four basically sealed and independent cavities, solving the problem that the water core wing plates cannot be tightly attached to the inner wall of the calender roll body due to the non-through-diameter of the inner diameter of the calender roll, and effectively ensuring the cooling effect of the independent cavities on the roll. Description of the drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of the non-through-diameter large drawing capacity water-dividing calender roll of the present application.

[0022] Figure 2 This is a schematic structural diagram of the water distribution device of the non-through-diameter large draw amount water distribution type calender roll of the present application.

[0023] Figure 3 This is a longitudinal sectional view of the water distribution device of the non-through-diameter large draw amount water distribution type calender roll of the present application.

[0024] Figure 4 This is a transverse sectional view of the non-through-diameter large draw amount water distribution type calender roll of the present application.

[0025] Figure 5 This is an enlarged partial view of the adjusting mechanism of the non-through-diameter large draw amount water distribution type calender roll of the present application.

[0026] Figure 6 This is an enlarged partial view of the adjusting mechanism of the non-through-diameter large draw amount water distribution type calender roll of the present application.

[0027] Figure 7 This is an enlarged view of the adjusting tapered sleeve of the non-through-diameter large draw amount water distribution type calender roll of the present application.

[0028] Figure 8 This is an enlarged view of the limit sleeve of the non-through-diameter large draw amount water distribution type calender roll of the present application.

[0029] Figure 9 This is a schematic structural diagram after the non-through-diameter large draw amount water distribution type calender roll of the present application is connected to the rotary joint.

[0030] Figure 10 is Figure 9 an enlarged partial structural diagram of the rotary joint in

[0031] Figure 11 This is a sectional view of a through-diameter type calender roll with a bearing bush structure in the prior art.

[0032] Figure 12 This is a sectional view of a non-through-diameter type calender roll with a bearing structure in the prior art.

[0033] Figure 13 This is a sectional view (internal welding) of the non-through-diameter water distribution device structure in the prior art of the present application.

[0034] Figure 14 This is a sectional view (integrally pull-out type) of the non-through-diameter water distribution device structure in the prior art of the present application.

[0035] Reference numerals:

[0036] Background art part:

[0037] Calender roll 100; Bearing bush 200; Shaft head 300; Step 400; Bearing 500; Water distribution core 600; Intermediate water distribution pipe 700; Water distribution core wing plate 800; Water flow cavity 900.

[0038] This application part:

[0039] Calendering roll body 1; calendering roll shaft head 2; water distribution device 3; adjusting mechanism 4; rolling bearing 5; cavity 6; rotary joint 7; water inlet pipe 71; water distribution core pipe 31; water distribution core wing plate 32; spring 33; positioning groove 34; water outlet hole 35; limit sleeve 41; adjusting cone sleeve 42; adjusting bolt 43; circular ring 411; limit clip 412; circular through hole 421; adjusting bolt through hole 422; support block 423; water through groove 424; limit plate 4121; gap 4122. Specific implementation mode

[0040] In order to solve the problems in the background technology, a non-through-diameter large drawing amount water distribution type calendering roll of this application is specially invented. This calendering roll uses anti-corrosion and rust-proof pipes such as nylon pipes with large diameters or aluminum pipes with thick wall thicknesses as the water distribution core pipes, increases the outer diameter size of the water distribution core pipes, reduces the capacity of the water flow cavity between the outer diameter of the nylon rod and the inner wall of the calendering roll body, thereby increasing the water flow speed and enhancing the cooling effect. The present invention designs the water distribution core pipe and the water distribution core wing plate into an assembled and pull-out structure, replacing the original structure where the water distribution core pipe is pulled out alone or the water distribution core pipe and the water distribution core wing plate are welded integrally. When the position of the water outlet hole of the water distribution core pipe is incorrect or the water distribution core wing plate needs to be replaced, the water distribution core and the water distribution core wing plate can be pulled out together, the water distribution core pipe can be redrilled or replaced with a new water distribution core pipe, the water distribution core wing plate can be repaired or replaced, or when the water outlet holes on the water distribution core pipe are severely blocked by scale, the water distribution core and the water distribution core wing plate can be pulled out together, cleaned and then reassembled, reducing the loss caused by the scrapping of the calendering roll and the manufacturing cost of the enterprise.

[0041] It should be noted that in the description of this application, the terms indicating directions or position relationships such as "inner", "outer", "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or position relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0042] A non-path-through large-drawing-capacity water-dividing calender roll, comprising a calender roll body 1, calender roll shaft heads 2, a water-dividing device 3 and an adjusting mechanism 4. The two ends of the calender roll body 1 are connected to the calender roll shaft heads 2. Rolling bearings 5 are installed on the calender roll shaft heads. The rolling bearings can be cylindrical roller bearings, self-aligning ball bearings, needle bearings, etc. commonly used in the current market. The water-dividing device 3 is placed inside the calender roll body 1. The water-dividing device 3 is divided into a water-dividing core tube 31, water-dividing core wing plates 32 and a spring 33. A plurality of positioning grooves 34 are axially formed on the side wall of the water-dividing core tube 31. The water-dividing core wing plates 32 are placed in the positioning grooves 34. A plurality of water outlet holes 35 are formed between adjacent positioning grooves on the water-dividing core tube 31. Springs 33 are installed between adjacent water-dividing core wing plates 32. The water-dividing core wing plates are inserted into the positioning grooves, and the water-dividing core wing plates are connected by springs. The two ends of the water-dividing device 3 are provided with an adjusting mechanism 4. The adjusting mechanism is used to adjust the inward or outward movement of the water-dividing core wing plates along the positioning grooves on the side wall of the water-dividing core tube. The water-dividing core wing plates can be opened in the calender roll to tightly adhere to the inner wall of the calender roll body, dividing the interior of the calender roll body into four or more separate closed water channels 6. In actual use, the number of the positioning grooves and the water-dividing core wing plates can be 3, 4 or more.

[0043] The adjusting mechanism 4 includes a limit sleeve 41, an adjusting cone sleeve 42 and an adjusting bolt 43. Limit sleeves 41 are fixedly installed at both ends of the water-dividing core tube 31. An adjusting cone sleeve 42 is installed on the water-dividing core tube outside the limit sleeve 41. The adjusting cone sleeve can slide back and forth on the water-dividing core tube. The adjusting bolt 43 connects the adjusting cone sleeve and the limit sleeve. The water-dividing core wing plates pass through the limit sleeve, and the ends are placed on the adjusting cone sleeve. The diameter of one end of the adjusting cone sleeve facing the limit sleeve is smaller than that of the other end, and the diameter gradually decreases. By turning the adjusting bolt, the adjusting cone sleeve moves towards or away from the limit sleeve. During the back-and-forth sliding of the adjusting cone sleeve, it is equivalent to the two ends of the water-dividing core wing plates sliding on the adjusting cone sleeve. In this way, the water-dividing core wing plates can move inward or outward in the positioning grooves, causing the water-dividing core wings to open or retract relative to the water-dividing core tube. When opened, it can be maximally abutted against the inner wall of the calender roll body to prevent water leakage. When retracted, the water-dividing core wing plates can be abutted against the bottom of the positioning grooves. In this way, the water-dividing device can be installed or pulled out of the calender roll body. The adjusting bolt can adjust the opening degree of the water-dividing core wing plates to ensure the smooth loading and unloading of the water-dividing device and achieve the water-dividing function. The limit sleeve can limit the left and right movement of the water-dividing core wing plates to ensure that the capacities of each water chamber are consistent.

[0044] The middle of the adjusting cone sleeve 42 is a circular through-hole 421 for mounting on the water distribution core pipe. A plurality of adjusting bolt through-holes 422 are provided on the outer periphery of the circular through-hole 421. Outside the circular through-hole are a plurality of support blocks 423 for supporting the water distribution core wing plates. The support blocks are in a ramp shape and gradually rise from the end facing the limit sleeve to the other end. A water trough 424 is provided between adjacent support blocks. The outer edge of the support block 423 is arc-shaped, and the outer edges of all the support blocks form a frustum shape after being connected.

[0045] The center of the limit sleeve 41 is a circular ring 411 for fixing on the water distribution core pipe. A plurality of adjusting bolt through-holes 422 are provided on the circular ring 411, and a plurality of limit clips 412 are provided on the outer periphery of the circular ring 411. The limit clip 412 is composed of two limit plates 4121 extending outward from the circular ring. A certain gap 4122 is left between the two limit plates 4121, and both ends of the water distribution core wing plate are clamped in the gap to prevent the water distribution core wing plate from moving left and right.

[0046] The gap between both sides of the water distribution core wing plate and the positioning groove is less than or equal to 1 mm.

[0047] The ratio of the inner diameter of the calendering roll body to the outer diameter of the water distribution core pipe is 25:20 - 27:20. Since the diameter of the calendering roll is mostly 250 - 270 mm, the outer diameter of the water distribution core pipe in the prior art is 60 mm.

[0048] Therefore, the wall thickness of the water distribution core pipe in this application increases, and the outer diameter increases to about 200 mm. The outer diameter of the water distribution core pipe is large, and the cavity between its outer diameter and the inner wall of the calendering roll body is small, so that the water flows quickly inside the cavity, with high cooling intensity, good cooling effect, and large drawing volume. The water distribution core pipe is an anti-rust and anti-corrosion pipe such as a nylon pipe, an aluminum pipe, or a steel pipe. The present invention designs the water distribution device into an assembled and pull-out structure, which is convenient for the replacement and maintenance of the water distribution core pipe and the water distribution core wing plate, and is also convenient for cleaning, repairing, or processing the inner wall of the calendering roll body, reducing the overall scrapping of the calendering roll and lowering the enterprise cost. The water distribution core adopts a material with a relatively thick wall thickness such as a nylon pipe or an aluminum pipe, increasing the pipe diameter size and reducing the water cavity capacity, thereby increasing the water flow speed and enhancing the cooling effect.

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0050] Such as Figures 1 - 10As shown in the figure, a non-through-diameter large-drawing-capacity water-dividing calender roll includes a calender roll body 1, calender roll shaft heads 2, and rolling bearings 5 on both sides. The inner diameter of the calender roll body is larger than that of the calender roll shaft head. The calender roll shaft head 2 is installed on the calender through the rolling bearings. The calender roll body 1 and the calender roll shaft head 2 adopt a structure of hot-fitting and then welding or a bolt connection structure. The water-dividing device 3 inside the calender roll body 1 includes a water-dividing core pipe 31, water-dividing core wing plates 32, and a spring 33. Four water-dividing core wing plate positioning grooves 34 are evenly distributed on the water-dividing core pipe 31. The water-dividing core wing plates are inserted into the positioning grooves 34 of the water-dividing core. A plurality of groups of water outlet holes 35 are provided on the circumference of the water-dividing core pipe. There is a spring 33 connecting the four water-dividing core wing plates 32. There is a set of adjusting mechanisms 4 for the water-dividing core wing plates on each side of the water-dividing device. The adjusting mechanism 4 includes an adjusting cone sleeve 42, an adjusting bolt 43, and a limit sleeve 41. The adjusting cone sleeve 42 is of an inclined wedge-shaped groove structure. By turning the adjusting bolt 43, the adjusting cone sleeve can be driven to move back and forth. The water-dividing core wing plates are lifted or lowered until they are close to the inner wall of the main roll of the calender roll or retracted into the grooves of the water-dividing core. The limit sleeve can limit the left and right movement of the water-dividing core wing plates to ensure that the cross-sectional areas of each water cavity are of the same size. Rotary joints 7 for inlet and outlet water are installed at both ends of the calender roll shaft head 2. The inlet pipe 71 of the rotary joint 7 is connected to the water-dividing core pipe 31 of the water-dividing device 3. The rotary joint 7 is also connected to the calender roll shaft head 2 through bolts and the like.

[0051] The present invention is implemented as follows:

[0052] To strengthen the firmness of the water-dividing core wing plates, the water-dividing core wing plates are inserted into the positioning grooves inside the water-dividing core pipe. The limit sleeve is fixed on the water-dividing core pipe according to the position. After the three are assembled together, they are installed into the calender roll body. Then, the adjusting cone sleeve and the adjusting bolt are installed on both sides of the water-dividing core pipe. By turning the adjusting bolt, the adjusting cone sleeve moves along the water-dividing core pipe. Since the inner end diameter of the adjusting cone sleeve is smaller than the outer end diameter, when the bolt is tightened, the adjusting cone sleeve moves inward, and the support block pushes the water-dividing core wing outward to lift the water-dividing core wing plates to tightly fit against the inner wall of the roll, ensuring the seal between each water cavity and preventing water leakage, thus forming four closed water cavities to meet the installation and use requirements.

[0053] As Figures 9 - 10 shown in the figure, one inlet pipe and four outlet pipes are respectively provided on the rotary joints on both sides of the calender roll. The two ends of the water-dividing core pipe of the water-dividing device are connected to the inlet pipe of the rotary joint. Four water-dividing core wing plate positioning grooves are evenly distributed on the outer wall of the water-dividing core pipe. The water-dividing core wing plates are inserted into the positioning grooves of the water-dividing core. In this way, the water-dividing core wing plates and the outer wall of the water-dividing core pipe divide the inner cavity of the calender roll into four water-dividing cavities. A number of water outlet holes are provided on the pipe wall of the water-dividing core pipe. According to the requirements of process production, the spacing positions of the water outlet holes can be arranged at equal distances or unequal distances. The sizes of the water outlet holes can also be flexibly adjusted before installation according to the process requirements.

[0054] After the cooling water enters the water distribution core pipe from the inlet pipes on both sides, it flows towards the middle along the water distribution core pipe, and then sprays out along several water outlet holes on the water distribution core pipe. The water outlet holes can be set in multiple places. After spraying, the water flows back towards both sides along the water distribution cavity. After the cooling water fills the water distribution core pipe and the water distribution cavity, the water flowing out from the four cavities of the water distribution cavity converges inside the calender roll shaft head and then flows out from the outlet pipes of the rotary joints on both sides. This symmetrical cooling method of inlet water on both sides and outlet water on both sides plays a very good role in cooling and temperature reduction for the calender roll.

[0055] As Figure 13 、 Figure 14 shown is the structural cross-sectional view of the existing water distribution device, Figure 4 and shown is the structural cross-sectional view of the calender roll of the present invention. The present invention uses a nylon pipe as the water distribution core pipe. Under the condition that the inner diameter of the inlet pipe is the same, by increasing the wall thickness of the nylon rod, the outer diameter of the nylon rod can be made larger, so that compared with Figure 13 、 Figure 14 the water cavity volume is significantly reduced, and under the condition of constant inlet water pressure, the water flow velocity is increased, enhancing the cooling effect.

[0056] This application can be freely installed into and pulled out from the pull-out type water distribution device to replace the original structure of only pulling out the middle round pipe, and at the same time, three problems need to be solved.

[0057] First, the water distribution core pipe and the calender roll 11 must rotate synchronously. For this reason, the present invention is designed as follows: after the inlet pipe of the rotary joint is docked with the water distribution core pipe and fixed by screws, and the rotary joint is bolted to the calender roll shaft head to ensure that the water distribution core pipe and the calender roll rotate synchronously.

[0058] Second, the water distribution core pipe, the water distribution core wing plate, and the calender roll also need to rotate together without misalignment. If the water distribution core wing plate does not rotate when the water distribution core pipe and the calender roll rotate together, there will be a speed difference, which will cause the displacement of the water outlet hole position. For this reason, the water distribution core wing plate is inserted into the groove of the water distribution core, and the water distribution core wing plates are connected by springs. A limit sleeve is used to fix between the water distribution core pipe and the water distribution core wing plate, and the water distribution core wing plate and the water distribution core are kept synchronous. This ensures that the water distribution core pipe, the rotary joint, and the calender roll always rotate together.

[0059] Third, the direct gap between the water distribution core pipe and the water distribution core wing plate should not be too large, otherwise water is likely to flow between the four cavities. For this reason, the direct gap between the water distribution core pipe and the water distribution core wing plate is generally controlled within a gap of 1MM. The present invention is designed as follows: the width of the four water distribution core wing plate positioning grooves on the water distribution core is 10mm, the width of the water distribution core wing plate is 8mm, and the gap on both sides is 2mm, so as to ensure that the unilateral gap is controlled within 1mm.

[0060] The water separation device of the present invention designs the water separation core tube and the water separation core wing plate into an assembled and pull-out structure, replacing the original structure where the water separation core is pulled out alone or the water separation core and the water separation core wing plate are integrally welded. When the position of the water outlet hole of the water separation core tube is incorrect or the water separation core wing plate needs to be replaced, the water separation core tube and the water separation core wing plate can be pulled out together to re-drill the water separation core or replace it with a new one, repair or replace the water separation core wing plate, or when the water outlet holes on the water separation core tube are severely blocked by scale, the water separation core tube and the water separation core wing plate can be pulled out together, cleaned and then reassembled. This reduces the loss caused by the scrapping of the calender roll, thereby reducing the production cost of the enterprise.

[0061] The above has schematically described the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and without departing from the content of the technical solution of the present invention, and design similar structural manners and implementations to this technical solution without creative efforts based on the technical essence of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A non-diameter large-drawing water-dividing calendering roller, characterized in that: It includes a calendering roller body, a calendering roller shaft head, a water distribution device and an adjusting mechanism. The two ends of the calendering roller body are connected to the calendering roller shaft head. The water distribution device is placed in the calendering roller body. The water distribution device is divided into a water distribution core tube, a water distribution core wing plate and a spring. The side wall of the water distribution core tube is axially provided with a plurality of positioning grooves. The water distribution core wing plate is placed in the positioning grooves. A plurality of water outlet holes are provided between adjacent positioning grooves on the water distribution core tube. A spring is installed between adjacent water distribution core wing plates. Adjusting mechanisms are installed at both ends of the water distribution device. The adjusting mechanisms are used to adjust the water distribution core wing plate to move inward or outward along the positioning grooves on the side wall of the water distribution core tube.

2. The non-diameter large-drawing-amount water-dividing calendering roller according to claim 1, characterized in that: The adjustment mechanism includes a limit sleeve, an adjustment cone sleeve and an adjustment bolt. The limit sleeves are fixedly installed at both ends of the water-dividing core tube. The outer side of the limit sleeve of the water-dividing core tube is provided with an adjustment cone sleeve. The adjustment bolt connects the adjustment cone sleeve and the limit sleeve. The water-dividing core wing plate passes through the limit sleeve, and the end is placed on the adjustment cone sleeve. The diameter of the adjustment cone sleeve toward one end of the limit sleeve is smaller than that of the other end, and the diameter gradually decreases.

3. The non-diameter large-drawing-amount water-dividing calendering roller according to claim 2, characterized in that: The middle of the adjusting cone sleeve is a circular through hole for being installed on the water-dividing core tube, and the outer circumference of the circular through hole is provided with a plurality of adjusting bolt through holes, and the outer side of the circular through hole is provided with a plurality of supporting blocks for supporting the wing plates of the water-dividing core, and the supporting blocks are in a slope shape, and the supporting blocks gradually rise from one end toward the other end of the limiting sleeve, and there is a water trough between adjacent supporting blocks.

4. The non-diameter large-drawing-amount water-dividing calendering roller according to claim 3, characterized in that: The outer edge of the support block is in an arc shape, and the outer edges of all the support blocks are connected to form a truncated cone shape.

5. The non-diameter large-drawing-amount water-dividing calendering roller according to claim 2, characterized in that: The center of the limiting sleeve is a circular ring for fixing on the water distribution core pipe, a plurality of adjusting bolt passing holes are arranged on the circular ring, and a plurality of limiting clamps are arranged on the outer periphery of the circular ring.

6. The non-diameter large-drawing-amount water-dividing calendering roller according to claim 5, characterized in that: The limiting clamp is composed of two limiting plates extending outward from the circular ring, a certain gap is left between the two limiting plates, and the two ends of the water-dividing core wing plate are stuck in the gap.

7. The non-diameter large-drawing-amount water-dividing calendering roller according to claim 1, characterized in that: The gap between the two sides of the water-dividing core wing plate and the positioning groove is less than or equal to 1 mm.

8. The non-diameter large-drawing-amount water-dividing calendering roller according to claim 1, characterized in that: The ratio of the inner diameter of the calendering roller to the outer diameter of the water-dividing core tube is 25:20-27:

20.

9. The non-diameter large-drawing-amount water-dividing calendering roller according to claim 1, characterized in that: The water distribution core pipe is a rust-proof and corrosion-proof pipe such as a nylon pipe, an aluminum pipe or a steel pipe.

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