Combined calender roll for papermaking calender

Abstract

The invention provides a combined calendaring roller for a papermaking calendaring machine, and belongs to the technical field of papermaking calendaring rollers. Comprising a supporting roller shaft piece, a rotating roller part is installed on the supporting roller shaft piece, and a circle of driving expansion pieces are installed on the rotating roller part; the circle of driving expansion piece is used for outwards moving and expanding the adaptive gap; the rotary roller part is used for rotating on the supporting roller shaft piece; the rotary roller part is sleeved with a combined calendering piece; the circle of driving expansion pieces are used for expanding and attaching the combined press polish piece. The adopted driving expansion piece can utilize an extrusion block of an inclined plane structure to adapt to a gap generated by the combined calendering piece in long-term use, so that shaking caused by clearance generated by the combined calendering piece can be prevented, and the calendering stability is improved; the combined calendaring roller for the papermaking calender solves the problems that an existing combined calendaring roller for the papermaking calender is prone to generating clearance, the use precision of the roller is affected, targeted local adjustment is not convenient, and the paper calendaring effect is poor.

Description

Technical Field

[0001] The invention relates to the technical field of papermaking calender rollers, and in particular to a combined calender roller for a papermaking calender. Background Art

[0002] The papermaking calendering roller is an important component in the papermaking machinery, which is mainly used in the calendering and finishing process of paper. The papermaking calendering roller can improve the smoothness and flatness of paper and is one of the indispensable equipment in papermaking production. In practical applications, the application of hard calendering rollers is relatively comprehensive. They are usually made of hard materials, such as cast steel, alloy steel or chilled cast iron, with high surface hardness and good finish. The combined calendering rollers for the current papermaking calendering machine have high use costs, and the external calendering surface is not convenient for quick and seamless replacement. Some replaceable rollers are prone to gap clearance for a long time, which affects the use accuracy of the rollers. At the same time, it is not convenient for local temperature control, and the heating uniformity is not good. It is also not convenient for automatic detection of the roughness of paper feed, and it is not convenient for targeted local adjustment. The calendering effect of paper is not good. The calendering effect at the location with poor local roughness of the paper is not good, which increases the defective rate. At the same time, when the calendering roller with a long length is used for a long time, it is easy to deform and sag under the action of the deadweight in the middle, which is easy to cause uneven calendering and affect the production quality. Therefore, the present application provides a combined calendering roller for a papermaking calendering machine to meet the needs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a combined calendering roller for a papermaking calender to solve the problem that the existing combined calendering roller for a papermaking calender is prone to produce gap clearance, affecting the use accuracy of the roller, making it inconvenient to perform targeted local adjustments, resulting in poor paper calendering effect, poor calendering effect at locations with poor local roughness, and increased defective rate.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A combined calendering roller for a papermaking calendering machine comprises a supporting roller shaft member, a rotating roller portion is mounted on the supporting roller shaft member, a circle of driving expansion members is mounted on the rotating roller portion; the circle of driving expansion members is used to move outward to expand the adaptation gap; the rotating roller portion is used to rotate on the supporting roller shaft member; a combined calendering member is sleeved on the outside of the rotating roller portion; a circle of driving expansion members is respectively used to expand and fit the combined calendering member; a suction auxiliary member is mounted on the supporting roller shaft member; the top of the suction auxiliary member is used to absorb the paper to be calendered; a row of suction test members is mounted on the suction auxiliary member; a row of suction test members is respectively used to test the roughness of the paper; a row of extrusion compensation members is mounted inside the supporting roller shaft member; a row of extrusion compensation members is used to rise and extrude the inner wall of the rotating roller portion; the supporting roller shaft member comprises: a roller shaft and an air vent, the roller shaft is provided with an air vent; the air vent runs through both ends of the roller shaft.

[0006] Optionally, the rotating roller portion includes a rotating cylinder rotatably mounted on a roller shaft via two bearings; the rotating cylinder is used to rotate and transport paper; a circle of sliding adjustment blocks is slidably mounted on the rotating cylinder, and a row of raised inclined blocks are respectively provided on each circle of the sliding adjustment blocks; the sliding adjustment blocks are used for movable adjustment.

[0007] Optionally, the suction auxiliary part includes a suction connection box fixedly installed on two shaft seats by two bolts; the suction connection box is a shell structure; the suction connection box is externally connected to a suction pump; a row of suction hoods is fixedly installed inside the suction connection box, and the row of suction hoods is an inclined structure; a row of micro switches is fixedly installed at the bottom of the suction connection box, and a row of the micro switches are respectively externally connected to indicator lights; a row of the micro switches are respectively located at the bottom of a row of suction hoods; a row of suction nets are fixedly embedded on the top of the suction connection box; a row of the suction nets is used to adsorb paper; the tops of a row of suction hoods are respectively attached to a row of suction nets.

[0008] Optionally, the combined calendering member comprises a combined calendering sleeve slidably sleeved on a rotating cylinder; the combined calendering sleeve is a smooth cylindrical structure; the combined calendering sleeve is sleeved on the rotating cylinder.

[0009] Optionally, the supporting roller shaft also includes an isolation plate fixedly installed inside the vent; a discharge hole is opened on the roller shaft; the discharge hole is connected to the vent; the discharge hole is located on the right side of the isolation plate; a row of diverter solenoid valves are installed inside the roller shaft; two shaft seats are rotatably sleeved on the roller shaft; the two shaft seats are respectively provided with through holes for passing bolts; the row of diverter solenoid valves is used to connect the vent and the outside of the roller shaft; a row of diverter solenoid valves is used to independently control the steam discharge rate.

[0010] Optionally, the extrusion compensating member further comprises a row of balls sleeved in a ball sleeve; the balls in the ball sleeve roll and fit the inside of the rotating cylinder; the balls are used to push up and extrude the rotating cylinder.

[0011] Optionally, the suction test piece includes a detection suction cylinder fixedly installed at the bottom of the suction hood; a sealing auxiliary ring is fixedly installed on the inner side of the detection suction cylinder; the bottom of the sealing auxiliary ring is a slope structure; a sliding frame is fixedly sleeved on the detection suction cylinder; a sealing shaft is slidably installed on the sliding frame; the bottom of the sealing shaft is a slope structure; the bottom of the sealing shaft is sealed and fitted with a sealing auxiliary ring; a closing spring is sleeved on the sealing shaft; the top of the closing spring is connected to the top of the sealing shaft; the bottom of the sealing shaft is connected to the sliding frame.

[0012] Optionally, the combined calendering component also includes a circle of extrusion bevel grooves opened inside the combined calendering sleeve; the inner sides of the circle of extrusion bevel grooves are respectively bevel structures; the two sides of the circle of expansion extrusion strips are respectively fitted with a circle of extrusion bevel grooves; a spacing is provided between the inner side of the circle of extrusion bevel grooves and the outer side of the expansion extrusion strip; the inner side of the limit bolt is attached to the side of the combined calendering sleeve.

[0013] Optionally, the driving expansion member includes a circle of adjusting screws rotatably installed on the rotating cylinder, and the ends of the circle of adjusting screws are respectively provided with hexagonal blocks; the hexagonal blocks at the ends of the adjusting screws are used to dock with a wrench; the adjusting screw is threadedly connected to a sliding adjustment block; an expansion extrusion strip is slidably installed on the rotating cylinder; the two sides of the expansion extrusion strip are inclined structures; a row of extrusion blocks are fixedly installed on the inner side of the expansion extrusion strip; the extrusion blocks are inclined structures; the two ends of the expansion extrusion strip are respectively threadedly connected to limiting bolts; the inner sides of the two limiting bolts are respectively attached to the two sides of the rotating cylinder; the expansion extrusion strip is used to extrude and fit the combined calendering parts.

[0014] Optionally, the extrusion compensation member includes a row of propulsion hydraulic cylinders fixedly mounted on the roller shaft; a row of propulsion hydraulic cylinders are respectively located inside the rotating cylinder; a ball sleeve is fixedly mounted on the output shaft of the propulsion hydraulic cylinder; and a spherical groove is provided on the ball sleeve.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] In the above scheme, by using vents, the staff can measure the temperature of the rotating drum surface in real time. A row of diversion solenoid valves can be used to independently adjust the local steam discharge speed, which can better promote the temperature uniformity of the rotating drum and improve the drying uniformity of the paper. It can be more suitable for the use of long-distance rotating drums and can prevent the problem of gradual temperature drop during the steam discharge from one end to the other.

[0017] By adopting a combined calendering part and a combined split structure, the practical cost can be reduced and the flexibility of use of the structure can be improved. At the same time, the structure cooperates with the driving expansion part to realize the quick positioning of the combined calendering part and ensure that the combined calendering part does not loosen. At the same time, the driving expansion part can utilize the extrusion block with a slope structure to adapt to the gap generated by the long-term use of the combined calendering part, which can prevent the combined calendering part from producing clearance and shaking, thereby improving the calendering stability and ensuring smoothness.

[0018] By using a suction test piece in conjunction with a suction auxiliary piece, the roughness of the paper can be tested by wind suction. The extrusion compensation piece can be controlled to apply pressure to the rotating cylinder according to the roughness of the paper. This can better adapt to the problem of poor uniformity after calendering caused by different roughness of different batches of paper. The structure is simple to detect and can provide intuitive prompts, allowing staff to make timely adjustments.

[0019] By adopting the extrusion compensation part, the compensation rotating cylinder can be pushed through a row of propulsion hydraulic cylinders to perform correction work. This can prevent the middle part of the rotating cylinder from bending downward when the rotating cylinder is long, thereby affecting the calendering quality. When the paper is in the middle of the rotating cylinder, insufficient extrusion pressure can easily cause poor calendering effect in the middle part of the paper. The use of balls can support the inside of the rotating cylinder, and the rotating cylinder will not be damaged while being corrected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a combined calender roller for a papermaking calender;

[0022] Figure 2 A cross-sectional view of the structure of a combined calender roller for a papermaking calender;

[0023] Figure 3 This is a schematic diagram of the installation position of the expansion extrusion strip;

[0024] Figure 4 It is a three-dimensional enlarged structural schematic diagram of the supporting roller shaft;

[0025] Figure 5 for Figure 2 A magnified view of the structure of the middle D region;

[0026] Figure 6 It is a three-dimensional enlarged structural schematic diagram of the rotating roller part;

[0027] Figure 7 It is a three-dimensional enlarged structural diagram of the driving expansion member;

[0028] Figure 8 It is a three-dimensional enlarged structural schematic diagram of the combined calendering part;

[0029] Fig. 9 for Figure 3 A magnified view of the structure of the middle E region;

[0030] Fig.10 It is a three-dimensional enlarged structural diagram of the suction auxiliary component;

[0031] Fig.11 for Figure 4 A magnified view of the structure of the middle F region;

[0032] Fig.12 for Figure 1 Enlarged view of the structure of the middle G region.

[0033] Reference numerals:

[0034] 1. Support roller shaft; 101. Roller shaft; 1011. Ventilation hole; 1012. Isolation plate; 1013. Discharge hole; 103. Diverter solenoid valve; 102. Shaft seat; 2. Rotating roller cylinder; 201. Rotating cylinder; 202. Sliding adjustment block; 3. Driving expansion member; 301. Adjusting screw rod; 302. Expansion extrusion strip; 3021. Extrusion block; 303. Limit bolt; 4. Combined calendering member; 401. Combined Calendering sleeve; 4011, extrusion bevel groove; 5, suction auxiliary part; 501, suction connection box; 5011, suction hood; 502, micro switch; 503, suction net; 6, suction test piece; 601, detection suction cylinder; 6011, sliding frame; 602, sealing auxiliary ring; 603, sealing shaft; 604, closing spring; 7, extrusion compensation part; 701, thrust hydraulic cylinder; 702, ball sleeve; 703, ball.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0036] The following is a detailed description of a combined calender roller for a papermaking calender provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0037] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0038] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0039] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0040] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0041] like Figures 1 to 12 As shown, an embodiment of the present invention provides a combined calendering roller for a papermaking calender, comprising a supporting roller shaft 1, a rotating roller portion 2 is mounted on the supporting roller shaft 1, and a circle of driving expansion members 3 is mounted on the rotating roller portion 2; the circle of driving expansion members 3 is used to move outward to expand the matching gap; the rotating roller portion 2 is used to rotate on the supporting roller shaft 1; a combined calendering member 4 is sleeved on the outside of the rotating roller portion 2; the circle of driving expansion members 3 is used to expand and fit the combined calendering member 4; the supporting roller shaft 1 is mounted with A suction auxiliary component 5; the top of the suction auxiliary component 5 is used to absorb the paper to be calendered; a row of suction test pieces 6 are installed on the suction auxiliary component 5; the row of suction test pieces 6 are used to test the roughness of the paper respectively; a row of extrusion compensation pieces 7 are installed inside the supporting roller shaft component 1; the row of extrusion compensation pieces 7 are used to rise and extrude the inner wall of the rotating roller part 2; the supporting roller shaft component 1 includes: a roller shaft 101 and a vent 1011, the roller shaft 101 is provided with a vent 1011; the vent 1011 runs through both ends of the roller shaft 101.

[0042] like Figures 4 to 6As shown, the supporting roller shaft member 1 also includes an isolation plate 1012 fixedly installed inside the vent hole 1011; a discharge hole 1013 is opened on the roller shaft 101; the discharge hole 1013 is connected to the vent hole 1011; the discharge hole 1013 is located on the right side of the isolation plate 1012; a row of shunt solenoid valves 103 are installed inside the roller shaft 101; two shaft seats 102 are rotatably sleeved on the roller shaft 101; the two shaft seats 102 are respectively provided with through holes for passing bolts; a row of shunt solenoid valves 103 are used to connect the vent hole 1011 with the outside of the roller shaft 101; a row of shunt solenoid valves 103 are used to independently control the steam discharge speed; the rotating roller part 2 includes a rotating cylinder 201 rotatably installed on the roller shaft 101 through two bearings; the rotating cylinder 201 is used to rotatably convey paper; a circle of sliding adjustment blocks 202 are slidably installed on the rotating cylinder 201, and a circle of sliding adjustment blocks 2 02 are respectively provided with a row of raised oblique blocks; the sliding adjustment block 202 is used for movement and adjustment; the rotating roller part 2 can be rotated on the supporting roller shaft part 1 to perform calendering work, and the vent hole 1011 is used so that the staff can measure the temperature of the surface of the rotating cylinder 201 in real time. A row of shunt solenoid valves 103 can be used to facilitate independent adjustment of the local steam discharge speed, which can better promote the temperature uniformity of the rotating cylinder 201 and improve the drying uniformity of the paper. It can be more suitable for the use of the rotating cylinder 201 over a long distance, and can prevent the problem of gradual temperature reduction during the steam discharge from one end to the other. The temperature at different positions of the rotating cylinder 201 is detected by an infrared thermometer. When the temperature is low in some parts, the shunt solenoid valve 103 can be controlled at the corresponding position to increase the exhaust speed. After the steam is discharged through the shunt solenoid valve 103, it can be discharged from the discharge hole 1013.

[0043] like Figures 4 to 8As shown, the drive expansion member 3 includes a circle of adjusting screw rods 301 rotatably mounted on the rotating cylinder 201, and the ends of the circle of adjusting screw rods 301 are respectively provided with hexagonal blocks; the hexagonal blocks at the ends of the adjusting screw rods 301 are used for docking wrenches; the adjusting screw rods 301 are threadedly connected to the sliding adjustment blocks 202; an expansion extrusion strip 302 is slidably mounted on the rotating cylinder 201; the two sides of the expansion extrusion strip 302 are inclined structures; a row of extrusion blocks 3021 are fixedly mounted on the inner side of the expansion extrusion strip 302; the extrusion blocks 3021 are inclined structures; the two ends of the expansion extrusion strip 302 are respectively threadedly connected to the limiting bolts 303; the inner sides of the two limiting bolts 303 are respectively attached On both sides of the rotating cylinder 201; the expansion extrusion strip 302 is used to extrude and fit the combined calendering member 4; the combined calendering member 4 includes a combined calendering sleeve 401 slidably sleeved on the rotating cylinder 201; the combined calendering sleeve 401 is a smooth cylindrical structure; the combined calendering sleeve 401 is sleeved on the rotating cylinder 201; the combined calendering member 4 also includes a circle of extrusion bevel grooves 4011 opened inside the combined calendering sleeve 401; the inner sides of the circle of extrusion bevel grooves 4011 are respectively inclined structures; the two sides of a circle of expansion extrusion strips 302 are respectively fitted with a circle of extrusion bevel grooves 4011; a spacing is provided between the inner side of the circle of extrusion bevel grooves 4011 and the outer side of the expansion extrusion strips 302;The inner side of the limiting bolt 303 is attached to the side of the combined calendering sleeve 401. The combined calendering part 4 can be disassembled and replaced. The combined split structure can reduce practical costs and improve the flexibility of the structure. At the same time, the structure cooperates with the drive expansion member 3 to quickly position the combined calendering part 4 to prevent the combined calendering part 4 from loosening. At the same time, the drive expansion member 3 can use the extrusion block 3021 with an inclined structure to adapt to the gap generated by the long-term use of the combined calendering part 4, so as to prevent the combined calendering part 4 from shaking due to clearance, thereby improving the calendering stability and ensuring smoothness. The structure is simple to operate. When the combined calendering sleeve 401 needs to be replaced, the original combined calendering sleeve 401 can be pulled out by removing the roller shaft 101 from the two shaft seats 102, and the new combined calendering sleeve 401 is inserted into the rotating cylinder 201, and the corresponding extrusion inclined groove 4011 is inserted into the extrusion block 3021. The adjusting screw rod 301 is rotated one circle respectively to control the movement of the sliding adjusting block 202, and the set extrusion block 3021 is squeezed by the inclined protrusion of the sliding adjusting block 202. At this time, the expansion extrusion strip 302 will be expanded and squeezed outward on the rotating cylinder 201, and fit the extrusion inclined groove 4011 for positioning. When the extrusion inclined groove 4011 is worn after long-term use, the inclined structure of the extrusion expansion extrusion strip 302 can also be squeezed and inserted into the inclined groove 4011 to compensate for the gap, ensure that the inclined groove 4011 can be fitted and positioned, and the stability of the combined calendering sleeve 401 is maintained. The clearance can be compensated in time, further improving the calendering quality, preventing the combined calendering sleeve 401 from loosening and affecting the stability of calendering, and reducing the use cost. The limit bolts 303 at both ends of the rotationally installed expansion extrusion strip 302 can limit the fit of the combined calendering sleeve 401, and further ensure the axial stability of the combined calendering sleeve 401. ;

[0044] like Figures 4 to 10As shown, the suction auxiliary part 5 includes a suction connection box 501 fixedly installed on two shaft seats 102 by two bolts; the suction connection box 501 is a shell structure; the suction connection box 501 is externally connected to a suction pump; a row of suction hoods 5011 are fixedly installed inside the suction connection box 501, and the row of suction hoods 5011 is an inclined structure; a row of micro switches 502 are fixedly installed at the bottom of the suction connection box 501, and the row of micro switches 502 are respectively externally connected to indicator lights; the row of micro switches 502 are respectively located at the bottom of the row of suction hoods 5011; a row of suction nets 503 are fixedly embedded on the top of the suction connection box 501; the row of suction nets 503 are used for adsorption paper; the top of a row of suction hoods 5011 is respectively attached to a row of suction nets 503; the suction test piece 6 includes a detection suction cylinder 601 fixedly installed at the bottom of the suction hood 5011; a blocking auxiliary ring 602 is fixedly installed on the inner side of the detection suction cylinder 601; the bottom of the blocking auxiliary ring 602 is an inclined structure; a sliding frame 6011 is fixedly sleeved on the detection suction cylinder 601; a blocking shaft 603 is slidably installed on the sliding frame 6011; the bottom of the blocking shaft 603 is an inclined structure; the bottom of the blocking shaft 603 is sealed and attached to the blocking auxiliary ring 602; a closing spring 604 is sleeved on the closing shaft 603; the top of the closing spring 604 is connected to the top of the closing shaft 603; the sealing The bottom of the blocking shaft 603 is connected to the sliding frame 6011. The suction test piece 6 can cooperate with the suction auxiliary piece 5 to test the roughness of the paper by wind suction. The extrusion compensation piece 7 can be controlled to press the rotating cylinder 201 according to the roughness of the paper, which can better adapt to the problem of poor uniformity after calendering caused by different roughness of different batches of paper. The structure is simple to detect and can be prompted intuitively, which can facilitate the staff to make adjustments in time to improve the calendering quality. The detection method adopted by this structure will not cause damage to the paper and is simple to operate. The paper passes over a row of suction nets 503. The paper with qualified smoothness is relatively flat and is smooth with a row of The suction net 503 has a good bonding effect. When the suction pump connected to the suction connection box 501 is sucking, the paper has a sealing effect on the row of suction nets 503. On the contrary, if the surface of the paper is rough and the flatness is poor, the sealing effect on the row of suction nets 503 is poor. At this time, the leakage of the row of suction nets 503 increases. When the leakage of the corresponding row of suction nets 503 is large, the downward displacement of the blocking shaft 603 under the air pressure increases, and it will touch the micro switch 502 at the corresponding position of the squeeze, and an alarm will be issued. When the paper becomes flat again, the suction net 503 can be bonded again to reduce the leakage. The closing spring 604 can be used to elastically squeeze the sealing shaft 603 to reset.

[0045] like Figures 6 to 12As shown, the extrusion compensating member 7 includes a row of propulsion hydraulic cylinders 701 fixedly mounted on the roller shaft 101; the row of propulsion hydraulic cylinders 701 are respectively located inside the rotating cylinder 201; a ball sleeve 702 is fixedly mounted on the output shaft of the propulsion hydraulic cylinder 701; a spherical groove is provided on the ball sleeve 702; the row of propulsion hydraulic cylinders 701 are respectively provided with a controller; the extrusion compensating member 7 also includes a row of balls 703 sleeved in the ball sleeve 702; the balls 703 in the ball sleeve 702 roll and fit the inside of the rotating cylinder 201; the balls 703 are used to push up and extrude the rotating cylinder 201, and the extrusion compensating member 7 can be used The compensation rotating cylinder 201 can be pushed by a row of propulsion hydraulic cylinders 701 to perform correction work. This can prevent the middle part of the rotating cylinder 201 from bending downward easily due to the dead weight of the middle part when the rotating cylinder 201 is long, thereby affecting the calendering quality. When the paper is located in the middle of the rotating cylinder 201, the squeezing pressure is insufficient, which easily causes poor calendering effect in the middle part of the paper. The ball 703 can be used to support the inside of the rotating cylinder 201, and the rotating cylinder 201 will not be damaged while being corrected. The structure is compact and more suitable for a longer correction rotating cylinder 201.

[0046] The working principle provided by the present invention is that two shaft seats 102 are installed on the calendering roller frame of the production line by bolts. The structure can be placed under the power roller of the calendering roller, and the steam pipeline is connected through the vent hole 1011. The staff can detect the temperature of different positions of the rotating cylinder 201 through an infrared thermometer. When the temperature of some parts is low, the diverter solenoid valve 103 can be controlled at the corresponding position to increase the exhaust speed. After the steam is discharged through the diverter solenoid valve 103, it can be discharged from the exhaust hole 1013. When it is necessary to replace the combined calendering sleeve 401, the roller shaft 101 can be removed from the two shaft seats 102, and the original The combined calendering sleeve 401 is extracted, and a new combined calendering sleeve 401 is inserted into the rotating cylinder 201, and the corresponding extrusion bevel groove 4011 is inserted into the extrusion block 3021. The screw rod 301 can be rotated one circle to control the movement of the sliding adjustment block 202, and the extrusion block 3021 is extruded by the inclined protrusion of the sliding adjustment block 202. At this time, the expansion extrusion strip 302 will expand and extrude outward on the rotating cylinder 201, and fit the extrusion bevel groove 4011 for positioning. Later, when the extrusion bevel groove 4011 is worn out after long-term use, the inclined structure of the extrusion strip 302 can also be squeezed and expanded. The paper is squeezed and inserted into the inclined groove 4011 to compensate for the gap and ensure that the inclined groove 4011 can be fitted. The limit bolts 303 at both ends of the expansion and extrusion strip 302 can be rotated to fit the combined calender sleeve 401. The paper passes over the row of suction nets 503. The paper that meets the smoothness standard is relatively flat and has a good fit with the row of suction nets 503. When the suction pump connected to the suction connection box 501 is sucked, the paper has a sealing effect on the row of suction nets 503. On the contrary, if the surface of the paper is rough and the flatness is poor, the sealing effect on the row of suction nets 503 is poor, and the air leakage of the row of suction nets 503 increases. When the amount of air leakage of the blocking shaft 603 under the corresponding row of suction nets 503 is large, the downward displacement increases under the action of air pressure, and the micro switch 502 at the corresponding position is touched and squeezed. The indicator light outside the micro switch 502 prompts that because there is a normal gap between the connecting bearings of the rotating cylinder 201 and the roller shaft 101, the rotating cylinder 201 has a certain range of movement. The staff can control the corresponding propulsion hydraulic cylinder 701 to push the rotating cylinder 201 upward, increase the pressure on the paper at this position, and promote its calendering flatness. During actual calendering, the paper width should be smaller than the length of the rotating cylinder 201;

[0047] When the staff detects that the middle of the rotating cylinder 201 and the combined calendering sleeve 401 is bent downward, they can control the middle propulsion hydraulic cylinder 701 to drive the ball 703 in the ball sleeve 702 to rise, squeeze the rotating cylinder 201 and the middle of the combined calendering sleeve 401, and perform correction work.

[0048] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A combined calender roller for a papermaking calender, comprising a supporting roller shaft, on which a rotating roller portion is mounted, characterized in that: The rotating roller part is provided with a circle of driving expansion members; the circle of driving expansion members is used to move outward to expand the adapting gap; the rotating roller part is used to rotate on the supporting roller shaft member; The rotating roller portion is sleeved with a combined calendering member on the outside; a circle of driving expansion members are respectively used to expand and fit the combined calendering member; A suction auxiliary component is installed on the supporting roller shaft; the top of the suction auxiliary component is used to absorb the paper to be calendered; A row of suction test pieces is installed on the suction auxiliary piece; the row of suction test pieces is used to test the roughness of paper respectively; A row of extrusion compensation parts are installed inside the supporting roller shaft; A row of extrusion compensating pieces is used to rise and extrude the inner wall of the rotating roller portion; The supporting roller shaft member comprises: a roller shaft and a vent hole, wherein the roller shaft is provided with the vent hole; and the vent hole passes through both ends of the roller shaft.

2. The combined calender roller for a papermaking calender according to claim 1, characterized in that: The supporting roller shaft also includes an isolation plate fixedly installed inside the vent; a discharge hole is opened on the roller shaft; the discharge hole is connected to the vent; the discharge hole is located on the right side of the isolation plate; a row of diverter solenoid valves are installed inside the roller shaft; two shaft seats are rotatably sleeved on the roller shaft; the two shaft seats are respectively provided with through holes for passing bolts; the row of diverter solenoid valves is used to connect the vent and the outside of the roller shaft; a row of diverter solenoid valves is used to independently control the steam discharge rate.

3. The combined calender roller for a papermaking calender according to claim 1, characterized in that: The rotating roller part includes a rotating cylinder rotatably mounted on a roller shaft through two bearings; the rotating cylinder is used to rotate and transport paper; a circle of sliding adjustment blocks is slidably mounted on the rotating cylinder, and a row of raised inclined blocks are respectively provided on each circle of the sliding adjustment blocks; the sliding adjustment blocks are used for movement and adjustment.

4. The combined calender roller for a papermaking calender according to claim 3, characterized in that: The driving expansion part includes a circle of adjusting screws rotatably installed on the rotating cylinder, and the ends of the circle of adjusting screws are respectively provided with hexagonal blocks; the hexagonal blocks at the ends of the adjusting screws are used to dock with a wrench; the adjusting screws are threadedly connected with sliding adjustment blocks; an expansion extrusion strip is slidably installed on the rotating cylinder; the two sides of the expansion extrusion strip are inclined structures; a row of extrusion blocks are fixedly installed on the inner side of the expansion extrusion strip; the extrusion blocks are inclined structures; the two ends of the expansion extrusion strip are respectively threadedly connected with limiting bolts; the inner sides of the two limiting bolts are respectively attached to the two sides of the rotating cylinder; the expansion extrusion strip is used to extrude and fit the combined calendering parts.

5. The combined calender roller for a papermaking calender according to claim 4, characterized in that: The combined calendering member comprises a combined calendering sleeve slidably sleeved on a rotating cylinder; the combined calendering sleeve is a smooth cylindrical structure; the combined calendering sleeve is sleeved on the rotating cylinder.

6. The combined calender roller for a papermaking calender according to claim 5, characterized in that: The combined calendering part also includes a circle of extrusion bevel grooves opened inside the combined calendering sleeve; the inner sides of the circle of extrusion bevel grooves are respectively inclined structures; the two sides of the circle of expansion extrusion strips are respectively fitted with a circle of extrusion bevel grooves; a distance is provided between the inner sides of the circle of extrusion bevel grooves and the outer sides of the expansion extrusion strips; the inner sides of the limit bolts are attached to the side surfaces of the combined calendering sleeve.

7. The combined calender roller for a papermaking calender according to claim 2, characterized in that: The suction auxiliary part includes a suction connection box fixedly installed on two shaft seats by two bolts; the suction connection box is a shell structure; the suction connection box is externally connected to a suction pump; a row of suction hoods are fixedly installed inside the suction connection box, and the row of suction hoods is an inclined structure; a row of micro switches are fixedly installed at the bottom of the suction connection box, and a row of the micro switches are respectively externally connected to indicator lights; a row of the micro switches are respectively located at the bottom of a row of suction hoods; a row of suction nets are fixedly embedded on the top of the suction connection box; a row of the suction nets are used to absorb paper; the tops of a row of suction hoods are respectively attached to a row of suction nets.

8. The combined calender roller for a papermaking calender according to claim 7, characterized in that: The suction test piece includes a detection suction cylinder fixedly installed at the bottom of the suction hood; a sealing auxiliary ring is fixedly installed on the inner side of the detection suction cylinder; the bottom of the sealing auxiliary ring is an inclined structure; a sliding frame is fixedly sleeved on the detection suction cylinder; a sealing shaft is slidably installed on the sliding frame; the bottom of the sealing shaft is an inclined structure; the bottom of the sealing shaft is sealed and fitted with a sealing auxiliary ring; a closing spring is sleeved on the closing shaft; the top of the closing spring is connected to the top of the closing shaft; the bottom of the closing shaft is connected to the sliding frame.

9. The combined calender roller for a papermaking calender according to claim 3, characterized in that: The extrusion compensating member comprises a row of propulsion hydraulic cylinders fixedly mounted on the roller shaft; a row of propulsion hydraulic cylinders are respectively located inside the rotating cylinder; a ball sleeve is fixedly mounted on the output shaft of the propulsion hydraulic cylinder; and a spherical groove is provided on the ball sleeve.

10. The combined calender roller for a papermaking calender according to claim 9, characterized in that: The extrusion compensating member also includes a row of balls sleeved in the ball sleeve; the balls in the ball sleeve roll and fit the inside of the rotating cylinder; the balls are used to push up and extrude the rotating cylinder.

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