CN116920990A - Device and method for precisely controlling running of roller shaft spacing - Google Patents

Abstract

The invention discloses a device and a method for precisely controlling the running of a roll shaft distance, wherein the device comprises a clamping module, a distance adjusting module, a first swing arm module and a base; the first swing arm module is respectively and movably connected with the first roll shaft and the base; one end of the clamping module is rotationally connected with the first swing arm module, the other end of the clamping module is rotationally connected with the roll shaft element, and the clamping module applies a tensile force between the first swing arm module and the roll shaft element; one end of the distance adjusting module is rotationally connected with the first roll shaft, the other end of the distance adjusting module is movably connected with the roll shaft element, and the distance adjusting module provides support between the first roll shaft and the roll shaft element; the invention can eliminate the play of the roller bearing, the play of the roller connecting hole of the roller and the frame and the play of the roller linkage mechanism, realize the direct precise control of the roller spacing, provide a reliable solution for the high-precision operation control of the roller spacing, simultaneously avoid the risk of grinding the adjacent roller caused by the floating of the roller spacing, and have wider application range and higher application value.

Description

Device and method for precisely controlling running of roller shaft spacing

Technical Field

The invention relates to the technical field of adjustment of roll shaft elements, in particular to a device and a method capable of precisely controlling the running of gaps between roll shafts, which are applied to the field of roll shaft equipment such as a pair roll machine, a three-roll grinder, a multi-roll grinder, a coating machine and the like.

Background

Along with the continuous innovative development of technology, the requirements on the dispersion fineness of the micro-nano materials are higher and higher, and further, the requirements on the manufacturing precision and the operation control precision of the roll shafts of the dispersion equipment are higher. The manufacturing precision of roll shafts of the existing three-roll grinding machine, multi-roll grinding machine, coating machine and other equipment can be controlled within 2 microns, and the existing grinding requirements can be met. However, the operation control accuracy level of the dispersion equipment is uneven, for example, the existing equipment such as a small three-roller grinder, a small multi-roller grinder and the like can realize the operation control accuracy of about 2 micrometers; the running control precision of about 5 micrometers can be realized by the equipment such as a large three-roller grinder, a large multi-roller grinder and the like; if the operation precision of the equipment cannot be accurately controlled, the dispersion fineness parameter of the micro-nano material cannot be further improved.

Therefore, the operation control precision of the dispersing equipment plays a decisive role in the dispersion fineness of the micro-nano material, and the bearing clearance and the hinge hole shaft clearance are important factors that the operation precision cannot be precisely controlled. Therefore, the operation control precision of the equipment is closely related to the roll shaft adjusting technologies such as a gap adjusting mechanism, a gap eliminating mechanism and the like, and the gap adjusting mechanism and the gap eliminating mechanism are fundamental to realize high-precision motion control.

Currently, gap operation control of roll shaft equipment such as a three-roll grinder, a multi-roll grinder, a coating machine and the like in the market generally adopts: screw pair adjustment, ball screw adjustment, cam and connecting rod matching mechanism, tensioning arm and other control modes; the driving of the gap operation control generally employs: manual, motor, hydraulic, pneumatic, gear drive, etc. The gap adjustment and elimination scheme in the prior art is specifically as follows:

1. patent CN213700087U proposes a motor-driven gear, a gear-driven screw rod telescopic gap adjustment mechanism, but the meshing gap between gears and the gap between screw pairs are limited by machining precision and cannot be eliminated, and the gap of the bearing, the play between the pin shaft at the hinge position and the hole have no corresponding gap elimination measures, namely the play between the roll shaft and the frame connecting hole and the play between the roll shaft linkage mechanism, and no effective elimination scheme is proposed, so that the structure cannot realize high-precision movement gap adjustment.

2. Patent CN216605430U proposes a clearance adjustment mechanism in which a hand wheel drives a screw rod to stretch, but the clearance between screw pairs cannot be eliminated due to the limitation of machining precision, and the clearance between bearings and the clearance between a pin shaft and a hole at a hinge position have no corresponding clearance elimination mechanism.

3. Patent CN218637488U proposes a gap adjusting mechanism that drives a gear and a screw rod and cooperates with a displacement sensor, but the gap between the gear and the screw pair is limited by the machining precision and cannot be eliminated, the displacement sensor can accurately measure the gap, but the gap value is affected by multiple factors such as the pin shaft hinge hole play at two ends of the oil cylinder, the bearing play, the bearing seat hinge Kong Youxi and the like, the finally reflected roller shaft gap precision is greatly reduced, the method is converted into the roller shaft gap according to a certain calculation relation after secondary measurement, the measurement accumulated error exists, and the structure cannot realize the high-precision operation adjustment of the roller shaft gap.

4. Patent CN215980505U proposes a scissor type bearing play eliminating device, which can eliminate play of the supporting bearing of the shaft by the device for the same roll shaft, thereby ensuring stable and stable operation of the shaft, and avoiding jumping and the like due to the existence of bearing play. However, for a multi-roll grinder, it is necessary to ensure that the gap between two adjacent roll shafts is stable; the clearance stability between the adjacent roll shafts is influenced by the running stability of the roll shafts, the clearance between the roll shafts and the frame connecting holes and the clearance of the linkage device between the two roll shafts, and the influence is great; so this patent does not provide a reliable solution to how the play of the roller shaft and the frame connecting hole, the play of the linkage between the two rollers, is eliminated.

5. Patent CN110328242a proposes an adjusting device and a roll gap adjusting method, by controlling the sliding of the oblique wedge, so as to drive the first press roll assembly and the second press roll assembly to be far away from or close to each other; when the roll gap is adjusted, the wedge blocks move through the supporting part to drive the roll wheels, and the supporting part is used for supporting the roll wheels, so that the structure can not realize high-precision movement gap adjustment because no corresponding gap elimination measures exist in the play between the roll wheels and the supporting part, namely the play between the roll wheels and the connecting holes of the supporting part and the play of the roll wheel linkage mechanism.

In summary, in the prior art, no reliable elimination scheme is proposed for the play of the roller bearing, the play of the roller and the frame connecting hole, and the play of the roller linkage mechanism; in addition, because of the existence of bearing clearance, the clearance of the pin shaft and the hole, when no machining medium exists between the two roll shafts, the roll shafts can slide to the lowest point under the action of gravity, when the machining medium exists between the two roll shafts, the roll shafts can be unfolded again, the floating change of the distance between the two roll shafts is caused, and the risk of abrasion damage of the two roll shafts is greatly increased due to the floating of the distance between the roll shafts.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a device and a method for precisely controlling the roller spacing, so as to solve the problems that the play of a roller supporting bearing, the play of a roller and a frame connecting hole and the play of a roller linkage mechanism in the prior art cannot be eliminated.

In order to solve the technical problems, the specific technical scheme of the invention is as follows:

an apparatus for precision operation control of roller spacing between a first roller and a roller member, the apparatus comprising: the roll shaft element is connected with the base;

the clamping module comprises a clamping executing piece, a first clamping connecting end and a second clamping connecting end which are respectively connected with two ends of the clamping executing piece;

the distance adjusting module comprises a distance adjusting executing piece and a first distance adjusting connecting end and a second distance adjusting connecting end which are respectively connected with two ends of the distance adjusting executing piece;

the first swing arm module is provided with a first swing arm connecting end, a second swing arm connecting end and a third swing arm connecting end; the first swing arm module is in rotary connection with the first roll shaft through the second swing arm connecting end, and is movably connected with the base through the third swing arm connecting end;

The clamping module is rotationally connected with the first swing arm connecting end through the first clamping connecting end, and is rotationally connected with the roll shaft element through the second clamping connecting end; the clamping executing piece applies a pulling force or a pushing force between the first swing arm module and the roll shaft element through the first clamping connecting end and the second clamping connecting end;

the distance adjusting module is connected with the first roll shaft in a rotating mode through the first distance adjusting connecting end, the distance adjusting module is connected with the roll shaft element in a movable mode through the second distance adjusting connecting end, and the distance adjusting executing piece is supported between the first roll shaft and the roll shaft element through the first distance adjusting connecting end and the second distance adjusting connecting end.

As an improved scheme, when the device is applied to a single-roll coater, the roll shaft element is a fixed seat, a first connecting shaft and a second connecting shaft are connected to the fixed seat, and the axes of the first connecting shaft and the second connecting shaft are parallel to the axis of the first roll shaft;

the clamping module is rotationally connected with the first connecting shaft through the second clamping connecting end, and the distance adjusting module is movably connected with the second connecting shaft through the second distance adjusting connecting end.

As an improved scheme, when the device is applied to a roller pair machine, the roller shaft element is a second roller shaft; the second roll shaft is connected with a second swing arm module, the second swing arm module has the same structure as the first swing arm module, and the second swing arm module is also provided with a first swing arm connecting end, a second swing arm connecting end and a third swing arm connecting end;

the second swing arm module is connected with the second roll shaft in a rotating mode through the second swing arm connecting end of the second swing arm module, the second swing arm module is connected with the base in a movable mode through the third swing arm connecting end, the clamping module is connected with the first swing arm connecting end of the second swing arm module in a rotating mode through the second clamping connecting end, and the distance adjusting module is connected with the second roll shaft in a movable mode through the second distance adjusting connecting end.

As an improved scheme, when the device is applied to equipment with a plurality of roll shafts, such as a three-roll machine, a multi-roll machine and the like, the number of the second roll shafts is at least two, and the arrangement mode between the first roll shafts and the second roll shafts comprises a horizontal mode, an inclined mode, a V-shaped mode or a combined mode; the combined type is suitable for equipment with more than three roll shafts, and the arrangement modes are a combination of horizontal, inclined and V-shaped modes;

Each second roll shaft is connected with one second swing arm module, the number of the distance adjusting modules is equal to that of the second roll shafts, and the distance adjusting modules are connected between the first roll shafts and the second roll shafts and between the adjacent second roll shafts.

As an improvement, when the arrangement mode between the first roll shaft and the second roll shaft is horizontal or inclined, the number of the clamping modules is one or equal to that of the second roll shafts;

when the number of the clamping modules is one, the clamping modules are connected between the second swing arm module farthest from the first swing arm module and the first swing arm module;

when the number of the clamping modules is equal to that of the second roll shafts, the clamping modules are connected between the first swing arm modules and the second swing arm modules and between the adjacent second swing arm modules.

As an improved scheme, the first swing arm connecting end and the second swing arm connecting end are both hole structures formed in the first swing arm module body, and the third swing arm connecting end is a hole structure formed in the first swing arm module body or an elastic piece connected to the first swing arm module body; when the third swing arm connecting end is of a hole structure, a rotating shaft is arranged on the base, the third swing arm connecting end is rotationally connected to the rotating shaft, and the first swing arm module can rotate around the rotating shaft; when the third swing arm connecting end is an elastic piece, one end, far away from the first swing arm module, of the elastic piece is fixedly connected with the base, and the first swing arm module swings on the base through the elastic piece.

As an improved scheme, the distance adjusting executing piece comprises a mounting seat, a distance adjusting motor, a precise screw pair, a displacement sensor, a pressure sensor, a driving wedge-shaped sliding block and a pair of driven wedge-shaped sliding blocks;

the precise screw pair comprises a screw and a screw nut sleeved on the screw, and the screw is rotatably arranged on the mounting seat; the distance adjusting motor is arranged on the mounting seat, and the driving end of the distance adjusting motor is connected with the lead screw;

the mounting seat is provided with a slideway perpendicular to the screw rod, the screw rod nut is positioned in the slideway, and the driving wedge-shaped sliding block is fixedly connected with the screw rod nut; the two driven wedge-shaped sliding blocks are arranged in the slideway in a sliding manner, and are symmetrically arranged relative to the driving wedge-shaped sliding blocks;

the displacement sensor is arranged on the active wedge-shaped sliding block, and the distance measuring end of the displacement sensor is contacted with the mounting seat, so that the distance of the active wedge-shaped sliding block moving up and down can be monitored;

the first distance-adjusting connecting end is connected to one side, far away from the driving wedge-shaped sliding block, of one driven wedge-shaped sliding block, the pressure sensor is connected to one side, far away from the driving wedge-shaped sliding block, of the other driven wedge-shaped sliding block, the second distance-adjusting connecting end is connected to one side, far away from the driven wedge-shaped sliding block, of the pressure sensor, and the pressure sensor is used for sensing the extrusion force of two ends;

The distance adjusting motor drives the screw rod to rotate and controls the screw rod nut to move along the screw rod, so that the driving wedge-shaped sliding block is controlled to move along the direction perpendicular to the slideway, and the driving wedge-shaped sliding block drives the driven wedge-shaped sliding block to slide on the slideway.

As an improved scheme, the distance adjusting executing piece comprises a precise telescopic driving component, a distance adjusting oil cylinder, a power oil cylinder, a connecting seat and an oil pipe;

the precise telescopic driving assembly comprises a driving shell and a driving telescopic end, the distance adjusting oil cylinder comprises a distance adjusting piston rod and a distance adjusting cylinder barrel, the power oil cylinder comprises a power piston rod and a power cylinder barrel, and the inner diameter of the power cylinder barrel is smaller than that of the distance adjusting cylinder barrel and meets a certain proportion relation;

the first distance adjusting connecting end is connected with the distance adjusting piston rod, and the second distance adjusting connecting end is connected with the distance adjusting cylinder barrel;

the connecting seat is respectively connected with the driving shell and the power cylinder barrel, the driving telescopic end is connected with the power piston rod, the power cylinder barrel is communicated with the distance-adjusting cylinder barrel through the oil pipe, and the power cylinder barrel, the distance-adjusting cylinder barrel and the oil pipe are filled with hydraulic oil; meanwhile, the accurate adjustment of the roller spacing and the parameter feedback can be realized by introducing detection elements such as a pressure sensor, a displacement sensor and the like.

As an improved scheme, the first distance-adjusting connecting end is a circular connector, the second distance-adjusting connecting end is a U-shaped connector, and a U-shaped opening of the U-shaped connector faces to the opposite direction of the circular connector; the distance between the first distance adjusting connecting end and the second distance adjusting connecting end is kept by the distance adjusting executing piece, the distance adjusting module is supported between the first roll shaft and the second roll shaft, the clamping executing piece applies pulling force, and the distance adjusting module forms a support for preventing the first roll shaft and the second roll shaft from approaching to each other under the counter force.

As an improved solution, the above-mentioned rotational connection form may be a connection form capable of realizing a rotational function, such as a bearing, a ball joint, a hydrostatic bearing, a hydrodynamic bearing, an air bearing, a rotational connection slideway, and the like, and is not limited to a specific connection form.

On the other hand, the invention also provides a method for precisely controlling the roller spacing, which comprises the following steps: the second swing arm connecting end of the first swing arm module is sleeved at the end part of the first roll shaft, so that the first swing arm module is rotationally connected with the first roll shaft;

The third swing arm connecting end of the first swing arm module is movably connected with the base, so that the first swing arm module swings around the joint of the third swing arm connecting end and the base, and the first roll shaft swings along with the first swing arm module;

connecting the roller shaft element with the base;

the first clamping connecting end of the clamping module is rotationally connected with the first swing arm connecting end, and the second clamping connecting end of the clamping module is rotationally connected with the roll shaft element;

sleeving the first distance adjusting connecting end of the distance adjusting module at the end part of the first roll shaft to realize the rotary connection of the distance adjusting module and the first roll shaft; the second distance adjusting connecting end of the distance adjusting module is propped against the roll shaft element;

the clamping executing piece applies tension between the first swing arm module and the roll shaft element through the first clamping connecting end and the second clamping connecting end, and meanwhile, the distance adjusting executing piece provides support between the first roll shaft and the roll shaft element through the first distance adjusting connecting end and the second distance adjusting connecting end.

The technical scheme of the invention has the beneficial effects that:

1. The device for precisely controlling the roller spacing can completely eliminate the play of the roller support bearing, the play of the roller and the connecting hole of the frame and the play of the roller linkage mechanism, realize the direct precise control of the roller spacing, provide a reliable solution for precisely controlling the roller spacing, and simultaneously avoid the risk of grinding damage of adjacent rollers caused by the floating of the roller spacing; can be widely applied to the fields of micro-nano materials such as adhesives, photovoltaic slurry, electronic slurry, printing ink and the like and the fields of food processing, and has higher application value.

2. According to the method for precisely controlling the roller spacing, disclosed by the invention, the spacing between adjacent rollers is directly controlled, so that the error of indirect adjustment is reduced, the adjustment control precision is higher, the measured roller spacing size is direct, and no indirect measurement error exists; the whole mechanism is in a tensioning state, and the play of the roller shaft supporting bearing, the play of the roller shaft and the connecting hole of the frame and the play of the roller shaft linkage mechanism are eliminated, namely, the play of all rotation connecting positions is completely eliminated, so that the precise operation control of the roller shaft spacing can be realized; after the play of the bearing, the pin shaft and the hole is completely eliminated, the situation that the space between the roller shafts floats is avoided, and the risk of abrasion of the roller shafts is completely eliminated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a device for precisely controlling the running of a roll gap according to embodiment 1 of the present invention;

FIG. 2 is a schematic front view of a device for controlling precise running of a roll gap according to embodiment 1 of the present invention;

FIG. 3 is a schematic view of the cross-sectional A-A configuration of FIG. 2;

FIG. 4 is a schematic view of the cross-sectional B-B structure of FIG. 2;

FIG. 5 is a schematic perspective view of a clamping module in embodiment 1 of the present invention;

fig. 6 is a schematic perspective view of a first swing arm module according to embodiment 1 of the present invention;

FIG. 7 is a schematic perspective view of a distance adjusting module according to embodiment 1 of the present invention;

fig. 8 is a schematic structural diagram of a second form of the first swing arm module in embodiment 1 of the present invention;

fig. 9 is a schematic structural diagram of a third form of the first swing arm module in embodiment 1 of the present invention;

Fig. 10 is a schematic structural diagram of a fourth form of the first swing arm module in embodiment 1 of the present invention;

FIG. 11 is a schematic structural view of a fifth embodiment of the first swing arm module according to the embodiment 1 of the present invention;

FIG. 12 is a schematic perspective view of a distance adjusting module according to embodiment 2 of the present invention;

FIG. 13 is a schematic cross-sectional view of a distance adjusting module in embodiment 2 of the present invention;

FIG. 14 is a schematic perspective view of a distance adjusting module in embodiment 3 of the present invention;

FIG. 15 is a schematic cross-sectional view of a distance adjusting module in embodiment 3 of the present invention;

FIG. 16 is a schematic view showing the construction of the apparatus according to embodiment 4 of the present invention applied to a single roll coater;

FIG. 17 is a schematic view of the apparatus of embodiment 4 of the present invention applied to a three-roll machine;

FIG. 18 is a schematic view of the structure of the device in accordance with embodiment 4 of the present invention applied to a V-type three-roll machine;

FIG. 19 is a schematic view showing the structure of the device applied to a multi-roll machine and a coater in embodiment 4 of the present invention;

FIG. 20 is a schematic view showing the structure of the apparatus according to embodiment 4 of the present invention in another mode for applying the apparatus to a multi-roll machine or a coater;

the labels in the drawings are illustrated as follows:

1. a first roller shaft; 2. a clamping module; 3. a first swing arm module; 4. a distance adjusting module; 5. a base; 6. a second roller shaft; 7. the second swing arm module; 10. a fixing seat;

21. Clamping the executing piece; 22. a first clamp connection end; 23. a second clamp connection end;

31. the first swing arm connecting end; 32. the second swing arm connecting end; 33. the third swing arm connecting end;

41. a distance adjusting executing piece; 42. the first distance-adjusting connecting end; 43. the second distance-adjusting connecting end;

81. a mounting base; 82. a distance-adjusting motor; 83. a precision screw pair; 84. a displacement sensor; 85. a pressure sensor; 86. an active wedge slider; 87. a driven wedge block;

91. a distance-adjusting oil cylinder; 92. a power cylinder; 93. a precision telescoping drive assembly; 94. a connecting seat; 95. an oil pipe;

911. a distance-adjusting piston rod; 912. a distance-adjusting cylinder barrel;

921. a power piston rod; 922. a power cylinder;

101. a first connecting shaft; 102. and a second connecting shaft.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.

In the description of the present invention, it should be noted that the described embodiments of the present invention are some, but not all embodiments of the present invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "inner", "one side", "one end", "two ends", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

The embodiment provides a device for precisely controlling running of a roller shaft distance, as shown in fig. 1-7, including:

a device for controlling a precise running of a roll gap between a first roll shaft 1 and a roll shaft member, the device comprising: the device comprises a clamping module 2, a distance adjusting module 4, a first swing arm module 3 and a base 5, wherein a roll shaft element is connected with the base 5;

the clamping module 2 comprises a clamping executing piece 21, and a first clamping connecting end 22 and a second clamping connecting end 23 which are respectively connected with two ends of the clamping executing piece 21;

the distance adjusting module 4 includes a distance adjusting executing member 41, and a first distance adjusting connecting end 42 and a second distance adjusting connecting end 43 respectively connected to two ends of the distance adjusting executing member 41.

The first swing arm module 3 is provided with a first swing arm connecting end 31, a second swing arm connecting end 32 and a third swing arm connecting end 33; the first swing arm module 3 is rotatably connected with the first roller shaft 1 through the second swing arm connecting end 32, the first swing arm module 3 is movably connected with the base 5 through the third swing arm connecting end 33, and the movement is specifically rotational connection; the first swing arm module 3 rotates around the movable connection part with the base 5, and the first roll shaft 1 can swing along with the first swing arm module 3.

The clamping module 2 is rotatably connected with the first swing arm connecting end 31 through the first clamping connecting end 22, and the clamping module 2 is rotatably connected with the roll shaft element through the second clamping connecting end 23; the clamping actuator 21 applies a tensile force between the first swing arm module 3 and the roller element via the first clamping connection 22 and the second clamping connection 23; the clamping actuator 21 can realize telescopic movement, can provide pushing force and pulling force, and can maintain pushing force and pulling force states, so that the pushing force or pulling force states can be maintained when the first clamping connecting end 22 and the second clamping connecting end 23 are located at any distance. The clamping actuator 21 provides a driving force for rotating the first swing arm module 3 around the movable connection point with the base 5.

The distance adjusting module 4 is rotatably connected with the first roll shaft 1 through the first distance adjusting connecting end 42, the distance adjusting module 4 is movably connected with the roll shaft element through the second distance adjusting connecting end 43, the distance adjusting executing piece 41 maintains the distance between the first distance adjusting connecting end 42 and the second distance adjusting connecting end 43, the distance adjusting module 4 is supported between the first roll shaft 1 and the roll shaft element, the clamping executing piece 21 applies pulling force, and under the reaction force, the distance adjusting module 4 forms a support preventing the first roll shaft and the roll shaft element from approaching each other, namely, the distance adjusting executing piece 41 provides support between the first roll shaft 1 and the roll shaft element through the first distance adjusting connecting end 42 and the second distance adjusting connecting end 43.

The roll shaft element is a second roll shaft 6; the second roll shaft 6 is connected with a second swing arm module 7, the second swing arm module 7 has the same structure as the first swing arm module 3, and the second swing arm module 7 is also provided with a first swing arm connecting end 31, a second swing arm connecting end 32 and a third swing arm connecting end 33;

the second swing arm module 7 is rotatably connected with the second roll shaft 6 through the second swing arm connecting end 32 of the second swing arm module 7, and the second swing arm module 7 is movably connected with the base 5 through the third swing arm connecting end 33;

the clamping module 2 is rotatably connected with the first swing arm connecting end 31 of the second swing arm module 7 through the second clamping connecting end 23; the two ends of the clamping module 2 are respectively connected with the first swing arm module 3 and the second swing arm module 7, so that the two swing arms can be separated and folded, a certain pushing force is kept in a separated state, a certain pulling force is kept in a folded state, the pulling force is kept in the embodiment, and finally the clamping of the two roll shafts is realized. The clamping actuator 21 may be an oil cylinder, an air cylinder, a screw rod, etc. capable of realizing telescopic movement, and provides a mechanism capable of maintaining a certain pushing force and pulling force, and is not limited to a specific form;

The first distance-adjusting connecting end 42 is a circular connector, the second distance-adjusting connecting end 43 is a U-shaped connector, and the U-shaped opening of the U-shaped connector faces the opposite direction of the circular connector; the distance adjusting module 4 is rotationally connected with the first roll shaft 1 through a circular connector, the circular connector is sleeved at the end part of the first roll shaft 1, the inner ring of the circular connector is rotationally connected with the first roll shaft 1, and the cross section shown in fig. 3 can be seen, so that the rotational connection part of the first swing arm module 3 and the first roll shaft and the rotational connection part of the distance adjusting module and the first roll shaft are not located at the same point; the distance adjusting module 4 is movably connected with the second roll shaft 6 through a U-shaped connector, an arc surface on the inner side of the U-shaped connector is rotatably connected with the second roll shaft 6, one side of the U-shaped connector, which faces outwards, is of an open chute structure, and the side of the U-shaped connector does not play a limiting role; when the structure of the U-shaped connector is adopted, the clamping executing piece 21 applies the pulling force, the distance adjusting executing piece 41 provides the support for preventing the first roll shaft 1 and the second roll shaft 6 from approaching to meet the use requirement, the structure is only an optimal form, and when the second distance adjusting connecting end 43 also adopts the structure similar to the circular connector, the clamping executing piece 21 can provide the support, and correspondingly, the distance adjusting executing piece 41 applies the pulling force.

The distance between the first distance adjusting connecting end 42 and the second distance adjusting connecting end 43 can be directly adjusted and controlled through the distance adjusting executing piece 41, so that the distance between the two roll shafts is changed finally, and the distance adjusting module 4 is a precise distance adjusting mechanism, so that the precise adjustment of the distance between the roll shafts and the direct measurement feedback of the distance between the roll shafts can be realized.

In order to more clearly explain how the present embodiment achieves the objects, the following description is made: pulling the two swing arm modules to close by the pulling force provided by the clamping module 2, and finally clamping the two roll shafts together;

when the center distance between the first distance adjusting connecting end 42 and the second distance adjusting connecting end 43 of the distance adjusting module 4 is larger than the sum of the radiuses of the two roll shafts, the distance adjusting module 4 plays a role in supporting the two roll shafts, and a gap state is kept between the two roll shafts, at the moment, the distance between the two roll shafts can be changed by changing the distance between the first distance adjusting connecting end 42 and the second distance adjusting connecting end 43 of the distance adjusting module 4; on the contrary, when the center distance of the two connecting ends of the distance adjusting module 4 is smaller than the sum of the radiuses of the two roll shafts, the distance adjusting module 4 plays a role in supporting the two roll shafts, the two roll shafts are kept in a compressed state, and the gap is zero;

when the two roll shafts are in a clamping state by the tensile force provided by the clamping module 2 and the distance adjusting module 4 plays a role in supporting the two roll shafts, the whole mechanism is in a tensioning state, all the rotating joints are in a tensioning state, and the play is zero; for example, the connection play between the first clamping connection end 22 and the second clamping connection end 23 and the first swing arm connection end 31 on the first swing arm module 3 and the second swing arm module 7 respectively is zero; the connecting play between the third swing arm connecting end 33 on the first swing arm module 3 and the second swing arm module 7 and the base 5 is zero; the connecting clearance between the second swing arm connecting ends 32 on the first swing arm module 3 and the second swing arm module 7 and the first roll shaft 1 and the second roll shaft 6 is zero; the connecting clearance between the first distance adjusting connecting end 42 and the first roll shaft 1 and the connecting clearance between the second distance adjusting connecting end 43 and the second roll shaft 6 are zero;

Therefore, the whole device is in a tensioning state under the supporting action of the distance adjusting module 4, and finally, the connecting play of all the rotating joints (pin shafts or bearings and the like) is zero; the distance between the two roll shafts is directly controlled through the distance adjusting module 4, and compared with a traditional gap eliminating mechanism and a traditional mode of indirectly adjusting the distance between the roll shafts, the gap eliminating mechanism reduces or eliminates indirect control errors and indirect measurement errors, and can realize high-precision operation adjustment of the distance between the roll shafts.

It should be noted that the above-mentioned rotational connection form may be a connection form capable of realizing a rotational function, such as a bearing, a ball joint, a hydrostatic bearing, a hydrodynamic bearing, an air bearing, a rotational connection slideway, and the like, and is not limited to a specific connection form.

As an implementation manner of the present invention, in the swing arm module set according to this embodiment, the first swing arm connecting end 31, the second swing arm connecting end 32, and the third swing arm connecting end 33 are all hole structures formed on the body of the first swing arm module set 3, and the center points of the first swing arm connecting end 31, the second swing arm connecting end 32, and the third swing arm connecting end 33 are located on a straight line; the form is only an optimal form, and can also be a structural form of a second form as shown in fig. 8, wherein the first swing arm connecting end 31 and the third swing arm connecting end 33 are respectively positioned at two sides of the second swing arm connecting end 32; the structure forms of the third form and the fourth form shown in fig. 9 and 10 can also be adopted, and the first swing arm connecting end 31 and the third swing arm connecting end 33 are respectively positioned on the same side of the second swing arm connecting end 32; all swing arm structural forms which can realize the same functions of supporting, swinging and clamping the roll shaft and enable the mechanism to be in a tensioning state belong to the protection scope of the invention.

As an implementation manner of the present invention, the third swing arm connecting end 33 of the swing arm module set in this embodiment is of a hole structure, the base 5 is provided with a rotating shaft, the third swing arm connecting end 33 is rotatably connected to the rotating shaft, the first swing arm module set 3 can rotate around the rotating shaft, the main function is to realize the rotation and swing of the swing arm module set around the rotating shaft, the form is only an optimal form, or may be a structural form of a fifth form as shown in fig. 11, the third swing arm connecting end 33 is a spring piece connected to the swing arm module body, and one end of the spring piece, far from the first swing arm module set 3, is connected to the base 5, so as to realize the swing of the swing arm module set; all structural forms capable of realizing the swinging function of the swing arm module belong to the protection scope of the invention.

As an implementation manner of the present invention, there are a plurality of swing arm modules, which are a first swing arm module 3 and a plurality of second swing arm modules 7 respectively, wherein one of the swing arm modules can be fixedly connected with the base 5.

Example 2

An apparatus for precisely controlling the running of the roller distance is provided, and another embodiment is provided for the structure of the distance adjusting module 4 based on the scheme described in embodiment 1, see fig. 12 to 13, and the distance adjusting executing member 41 includes: the device comprises a mounting seat 81, a distance-adjusting motor 82, a precise screw pair 83, a displacement sensor 84, a pressure sensor 85, a driving wedge-shaped slide block 86 and a pair of driven wedge-shaped slide blocks; the mounting seat 81 provides mounting support for the above components;

The precise screw pair 83 comprises a screw and a screw nut sleeved on the screw, and the screw is rotatably installed on the installation seat 81; the distance-adjusting motor 82 is mounted on the mounting seat 81, and the driving end of the distance-adjusting motor 82 is connected with the screw rod;

the mounting seat 81 is provided with a horizontal slideway vertical to the screw rod and a vertical slideway communicated with the horizontal slideway, the screw rod nut is positioned in the vertical slideway, the driving wedge-shaped sliding block 86 is fixedly connected with the screw rod nut, and the driving wedge-shaped sliding block 86 slides in the vertical slideway; the two driven wedge-shaped sliding blocks are arranged in the horizontal slideway in a sliding manner, are symmetrically arranged relative to the driving wedge-shaped sliding block 86, the cross section of the driving wedge-shaped sliding block 86 is isosceles trapezoid, and one side of the driven wedge-shaped sliding block, facing the driving wedge-shaped sliding block 86, is an inclined plane and is matched with the side surface of the driving wedge-shaped sliding block 86;

the displacement sensor 84 is mounted on the active wedge-shaped sliding block 86, and the distance measuring end of the displacement sensor 84 is in contact with the mounting seat 81, so that the distance of the active wedge-shaped sliding block 86 moving up and down can be monitored;

the first distance-adjusting connecting end 42 is connected to one side, far away from the driving wedge-shaped sliding block 86, of one driven wedge-shaped sliding block, the pressure sensor 85 is connected to one side, far away from the driving wedge-shaped sliding block 86, of the other driven wedge-shaped sliding block 87, the second distance-adjusting connecting end 43 is connected to one side, far away from the driven wedge-shaped sliding block 87, of the pressure sensor 85, and the pressure sensor 85 is used for sensing the extrusion force of the two ends;

It should be noted that, the connection between the first distance-adjusting connection end 42 and the driven wedge-shaped slider mentioned above is only an optimal implementation manner, and a side of the first distance-adjusting connection end 42 facing the driving wedge-shaped slider 86 may be set as an inclined plane, where the first distance-adjusting connection end 42 may slide in a sliding horizontal channel, and the inclined plane directly realizes a sliding fit with the driving wedge-shaped slider 86;

the distance-adjusting motor 82 drives the screw rod to rotate and controls the screw rod nut to move up and down along the screw rod, so that the driving wedge-shaped sliding block 86 is controlled to move along a vertical slideway, and the driving wedge-shaped sliding block 86 drives the driven wedge-shaped sliding block to slide along a horizontal slideway. When the driving wedge-shaped sliding block 86 moves up and down, the distance between the first distance-adjusting connecting end 42 and the second distance-adjusting connecting end 43 is changed through sliding extrusion of the inclined plane, the displacement value monitored by the displacement sensor 84 is converted into the distance value of the two connecting ends through a certain calculation relation, and meanwhile, the pressure sensor 85 can sense the extrusion force of the two ends.

Example 3

The device for precisely controlling the running of the roller shaft spacing is provided, and another embodiment is provided for the structure of the distance adjusting module 4 based on the scheme described in the embodiment 1, as shown in fig. 14-15, the distance adjusting executing piece 41 comprises a precise telescopic driving component 93, a distance adjusting oil cylinder 91, a power oil cylinder 92, a connecting seat 94 and an oil pipe 95;

The precise telescopic driving assembly 93 comprises a driving shell and a driving telescopic end; the distance adjusting oil cylinder 91 comprises a distance adjusting piston rod 911 and a distance adjusting cylinder barrel 912, the power oil cylinder 92 comprises a power piston rod 921 and a power cylinder barrel 922, and the inner diameter of the power cylinder barrel 922 is smaller than that of the distance adjusting cylinder barrel 912 and meets a certain proportion relation;

the first distance adjusting connecting end 42 is connected with the distance adjusting piston rod 911, and the second distance adjusting connecting end 43 is connected with the distance adjusting cylinder 912;

the connecting seat 94 is respectively connected with the driving shell and the power cylinder 922, the driving telescopic end is connected with the power piston rod 921, the power cylinder 922 is connected with the distance-adjusting cylinder 912 through the oil pipe 95, the cylinder is communicated with the cylinder, and the power cylinder 922, the distance-adjusting cylinder 912 and the oil pipe 95 are filled with hydraulic oil;

the precise telescopic driving assembly 93 drives the telescopic end to extend, drives the power piston rod 921 to move forwards relative to the power cylinder 922, and the power piston rod 921 pushes hydraulic oil into the distance adjusting cylinder 912 and pushes the distance adjusting piston rod 911 out. Thereby changing the distance between first gage coupler 42 and second gage coupler 43. Because the inner diameter of the power cylinder 922 is smaller than that of the distance-adjusting cylinder 912 and a certain proportion relation is satisfied, the fine adjustment of the roll shaft distance can be realized through coarse adjustment of the power cylinder 92.

As an embodiment of the present invention, the detection elements such as the pressure sensor 85 and the displacement sensor 84 described in example 2 may be incorporated, so that precise adjustment of the roller pitch and parameter feedback may be realized.

As an embodiment of the present invention, the precision telescopic driving unit 93 is a rigid telescopic mechanism or a hydraulic telescopic mechanism or a pneumatic telescopic mechanism, and specifically, the rigid telescopic mechanism may be an electric push rod, an electric cylinder or the like.

Example 4

Based on the schemes described in embodiments 1-3, various embodiments are provided for application scenarios of a device for precisely controlling the pitch of roll shafts, see fig. 16-20, and the device can be applied to precisely controlling the pitch of roll shaft equipment such as a pair roll machine, a three roll machine, a V-shaped three roll machine, a multi-roll machine, a coating machine and the like.

As an embodiment of the present invention, as shown in fig. 16, the present device is applied to a single roll coater or other equipment having one roll shaft, the roll shaft element is a fixed seat 10, a first connecting shaft 101 and a second connecting shaft 102 are connected to the fixed seat 10, and the axes of the first connecting shaft 101 and the second connecting shaft 102 are parallel to the axis of the first roll shaft 1; the clamping module 2 is rotatably connected with the first connecting shaft 101 through the second clamping connecting end 23, and the distance adjusting module 4 is movably connected with the second connecting shaft 102 through the second distance adjusting connecting end 43.

As an embodiment of the present invention, as shown in fig. 17, the present device is applied to a three-roll machine, the number of the second roll shafts 6 is two, and the arrangement mode between the first roll shafts 1 and the second roll shafts 6 is horizontal or inclined; each second roll shaft 6 is connected with one second swing arm module 7, and the number of the clamping modules 2 and the number of the distance adjusting modules 4 are two;

the distance adjusting module 4 is connected between the first roll shaft 1 and the second roll shafts 6 and between two adjacent second roll shafts 6; the clamping module 2 is connected between the first swing arm module 3 and the second swing arm module 7 closest to the first swing arm module 3 and between two adjacent second swing arm modules 7.

As an embodiment of the present invention, as shown in fig. 18, the present device is applied to a V-type three-roll machine, the number of the second roll shafts 6 is two, and the arrangement manner between the first roll shaft 1 and the second roll shaft 6 is V-type; each second roll shaft 6 is connected with one second swing arm module 7, and two first swing arm connecting ends 31 are arranged on the second swing arm module 7 on the second roll shaft 6 positioned in the V-shaped middle position and are respectively connected with the clamping modules 2 on the two sides;

The number of the clamping modules 2 and the number of the distance adjusting modules 4 are two; the distance adjusting module 4 is connected between the first roll shaft 1 and the second roll shafts 6 and between two adjacent second roll shafts 6; the clamping module 2 is connected between the first swing arm module 3 and the second swing arm module 7 closest to the first swing arm module 3 and between two adjacent second swing arm modules 7.

As an implementation mode of the invention, see fig. 19, the device is applied to a multi-roll machine and a coating machine, adopts a connection mode similar to that in fig. 17, and only has different roll shafts, the number of the roll shafts can be determined according to the processing technology requirement, and can be n roll shafts, two adjacent roll shafts can realize independent clamping control, and independent distance adjusting modules 4 are respectively arranged between the two adjacent roll shafts; it should be noted that, although other roller shaft arrangements are not shown in fig. 19, the roller shaft arrangements are not limited to horizontal arrangements, and may be V-shaped, inclined-line or combined, and the combined forms refer to combinations of horizontal, inclined-line and V-shaped.

As an embodiment of the present invention, see fig. 20, the present device is applied to a multi-roll machine or a coating machine, and adopts a connection manner similar to that of fig. 19, which is different from that of fig. 19 in that the swing arm modules at two ends are respectively connected to two ends of the clamping module 2, that is, the clamping module 2 is connected between the second swing arm module 7 farthest from the first swing arm module 3 and the first swing arm module 3, and the clamping of all the roll shafts is achieved by the action of one clamping module 2, and independent distance adjusting modules 4 are respectively installed between two adjacent roll shafts.

Example 5

The present embodiment provides a method of roll gap precise operation control based on the same inventive concept as the apparatus of roll gap precise operation control described in embodiment 1, including the steps of:

the second swing arm connecting end 32 of the first swing arm module 3 is sleeved at the end part of the first roll shaft 1, so that the first swing arm module 3 is rotationally connected with the first roll shaft 1;

the third swing arm connecting end 33 of the first swing arm module 3 is movably connected with the base 5, so that the first swing arm module 3 swings around the joint of the third swing arm connecting end 33 and the base 5, and the first roll shaft 1 swings along with the first swing arm module 3;

connecting the roller element with the base 5;

rotationally connecting the first clamping connection end 22 of the clamping module 2 with the first swing arm connection end 31, and rotationally connecting the second clamping connection end 23 of the clamping module 2 with the roller shaft element;

sleeving the first distance adjusting connecting end 42 of the distance adjusting module 4 at the end part of the first roll shaft 1 to realize the rotary connection of the distance adjusting module 4 and the first roll shaft 1; the second distance adjusting connecting end 43 of the distance adjusting module 4 is propped against the roll shaft element;

The clamping actuator 21 applies a pulling force between the first swing arm module 3 and the roll shaft element through the first clamping connection end 22 and the second clamping connection end 23, and the distance adjusting actuator maintains the distance between the first distance adjusting connection end and the second distance adjusting connection end, and the distance adjusting module provides a support preventing the first roll shaft and the roll shaft element from approaching each other under a reaction force because the distance adjusting module is arranged between the first roll shaft and the roll shaft element, namely, the distance adjusting actuator 41 provides a support between the first roll shaft 1 and the roll shaft element through the first distance adjusting connection end 42 and the second distance adjusting connection end 43.

Compared with the prior art, the device and the method for precisely controlling the roller shaft spacing are adopted, the whole mechanism is in a tensioning state under the supporting action of the distance adjusting module 4, and finally, the connection play of all rotation joints (pin shafts or bearings and the like) is zero; the distance between the two roll shafts is directly controlled through the distance adjusting module 4, so that indirect control errors and indirect measurement errors are reduced or eliminated; compared with a traditional gap eliminating mechanism, a double-roll machine, a three-roll machine, a multi-roll machine and the like for indirectly adjusting the spacing of the roll shafts, the device and the method can realize high-precision operation adjustment of the spacing of the roll shafts, and have higher application value.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.

Claims (10)

1. A device for controlling the precise running of a roll gap, which is connected between a first roll (1) and a roll element, characterized in that the device comprises: the device comprises a clamping module (2), a distance adjusting module (4), a first swing arm module (3) and a base (5), wherein the roll shaft element is connected with the base (5);

the clamping module (2) comprises a clamping executing piece (21) and a first clamping connecting end (22) and a second clamping connecting end (23) which are respectively connected with two ends of the clamping executing piece (21);

the distance adjusting module (4) comprises a distance adjusting executing piece (41) and a first distance adjusting connecting end (42) and a second distance adjusting connecting end (43) which are respectively connected with two ends of the distance adjusting executing piece (41);

the first swing arm module (3) is provided with a first swing arm connecting end (31), a second swing arm connecting end (32) and a third swing arm connecting end (33); the first swing arm module (3) is rotationally connected with the first roll shaft (1) through the second swing arm connecting end (32), and the first swing arm module (3) is movably connected with the base (5) through the third swing arm connecting end (33);

The clamping module (2) is rotationally connected with the first swing arm connecting end (31) through the first clamping connecting end (22), and the clamping module (2) is rotationally connected with the roll shaft element through the second clamping connecting end (23); the clamping executing piece (21) applies a pulling force or a pushing force between the first swing arm module (3) and the roll shaft element through the first clamping connecting end (22) and the second clamping connecting end (23);

the distance adjusting module (4) is rotationally connected with the first roll shaft (1) through the first distance adjusting connecting end (42), the distance adjusting module (4) is movably connected with the roll shaft element through the second distance adjusting connecting end (43), and the distance adjusting executing piece (41) is supported between the first roll shaft (1) and the roll shaft element through the first distance adjusting connecting end (42) and the second distance adjusting connecting end (43).

2. The apparatus for precisely operating and controlling the spacing between the rolls according to claim 1, wherein: the roll shaft element is a fixed seat (10), a first connecting shaft (101) and a second connecting shaft (102) are connected to the fixed seat (10), and the axes of the first connecting shaft (101) and the second connecting shaft (102) are parallel to the axis of the first roll shaft (1);

The clamping module (2) is rotationally connected with the first connecting shaft (101) through the second clamping connecting end (23), and the distance adjusting module (4) is movably connected with the second connecting shaft (102) through the second distance adjusting connecting end (43).

3. The apparatus for precisely operating and controlling the spacing between the rolls according to claim 1, wherein: the roll shaft element is a second roll shaft (6); the second roll shaft (6) is connected with a second swing arm module (7), the second swing arm module (7) has the same structure as the first swing arm module (3), and the second swing arm module (7) is also provided with a first swing arm connecting end (31), a second swing arm connecting end (32) and a third swing arm connecting end (33);

the second swing arm module (7) is connected with the second roll shaft (6) in a rotating mode through the second swing arm connecting end (32) of the second swing arm module (7), the second swing arm module (7) is connected with the base (5) in a movable mode through the third swing arm connecting end (33), the clamping module (2) is connected with the first swing arm connecting end (31) of the second swing arm module (7) in a rotating mode through the second clamping connecting end (23), and the distance adjusting module (4) is connected with the second roll shaft (6) in a movable mode through the second distance adjusting connecting end (43).

4. A roll gap precision operation control apparatus according to claim 3, wherein: the number of the second roll shafts (6) is at least two, and the arrangement mode between the first roll shafts (1) and the second roll shafts (6) comprises a horizontal mode, a diagonal mode, a V-shaped mode or a combined mode;

every be connected with on the second roller (6) second swing arm module (7), the quantity of roll adjustment module (4) with the quantity of second roller (6) equals, roll adjustment module (4) are connected between first roller (1) and second roller (6) and adjacent between second roller (6).

5. The apparatus for precisely operating and controlling the spacing between the rolls according to claim 4, wherein: when the arrangement mode between the first roll shafts (1) and the second roll shafts (6) is horizontal or inclined, the number of the clamping modules (2) is one or equal to that of the second roll shafts (6);

when the number of the clamping modules (2) is one, the clamping modules (2) are connected between the second swing arm module (7) farthest from the first swing arm module (3) and the first swing arm module (3);

When the number of the clamping modules (2) is equal to the number of the second roll shafts (6), the clamping modules (2) are connected between the first swing arm modules (3) and the second swing arm modules (7) and between the adjacent second swing arm modules (7).

6. A roll gap precision operation control apparatus according to claim 2 or 3, characterized in that: the first swing arm connecting end (31) and the second swing arm connecting end (32) are hole structures formed in the body of the first swing arm module (3), and the third swing arm connecting end (33) is a hole structure formed in the body of the first swing arm module (3) or an elastic piece connected to the body of the first swing arm module (3).

7. The apparatus for precisely operating and controlling the spacing between the rolls according to claim 6, wherein: the distance adjusting executing piece (41) comprises a mounting seat (81), a distance adjusting motor (82), a precise screw pair (83), a displacement sensor (84), a pressure sensor (85), a driving wedge-shaped sliding block (86) and a pair of driven wedge-shaped sliding blocks;

the precise screw pair (83) comprises a screw and a screw nut sleeved on the screw, and the screw is rotatably arranged on the mounting seat (81); the distance adjusting motor (82) is arranged on the mounting seat (81), and the driving end of the distance adjusting motor (82) is connected with the lead screw;

The mounting seat (81) is provided with a slideway perpendicular to the screw rod, the screw rod nut is positioned in the slideway, and the driving wedge-shaped sliding block (86) is fixedly connected with the screw rod nut; the two driven wedge-shaped sliding blocks are arranged in the slideway in a sliding manner, and are symmetrically arranged relative to the driving wedge-shaped sliding block (86);

the displacement sensor (84) is mounted on the active wedge-shaped sliding block (86), and a ranging end of the displacement sensor (84) is in contact with the mounting seat (81);

the first distance-adjusting connecting end (42) is connected to one side, far away from the driving wedge-shaped sliding block (86), of one driven wedge-shaped sliding block, the pressure sensor (85) is connected to one side, far away from the driving wedge-shaped sliding block (86), of the other driven wedge-shaped sliding block (87), and the second distance-adjusting connecting end (43) is connected to one side, far away from the driven wedge-shaped sliding block (87), of the pressure sensor (85);

the distance adjusting motor (82) drives the screw rod to rotate, and controls the screw rod nut to move along the screw rod, so that the driving wedge-shaped sliding block (86) is controlled to move along the direction perpendicular to the slideway, and the driving wedge-shaped sliding block (86) drives the driven wedge-shaped sliding block to slide on the slideway.

8. The apparatus for precisely operating and controlling the spacing between the rolls according to claim 6, wherein: the distance adjusting executing piece (41) comprises a precise telescopic driving assembly (93), a distance adjusting oil cylinder (91), a power oil cylinder (92), a connecting seat (94) and an oil pipe (95);

the precise telescopic driving assembly (93) comprises a driving shell and a driving telescopic end, the distance adjusting oil cylinder (91) comprises a distance adjusting piston rod (911) and a distance adjusting cylinder barrel (912), the power oil cylinder (92) comprises a power piston rod (921) and a power cylinder barrel (922), and the inner diameter of the power cylinder barrel (922) is smaller than that of the distance adjusting cylinder barrel (912);

the first distance adjusting connecting end (42) is connected with the distance adjusting piston rod (911), and the second distance adjusting connecting end (43) is connected with the distance adjusting cylinder barrel (912);

the connecting seat (94) is respectively connected with the driving shell and the power cylinder barrel (922), the driving telescopic end is connected with the power piston rod (921), the power cylinder barrel (922) is communicated with the distance adjusting cylinder barrel (912) through the oil pipe (95), and the power cylinder barrel (922), the distance adjusting cylinder barrel (912) and the oil pipe (95) are filled with hydraulic oil.

9. The apparatus for precisely running control of the pitch of the roll shafts according to claim 7 or 8, wherein: the first distance-adjusting connecting end (42) is a circular connector, the second distance-adjusting connecting end (43) is a U-shaped connector, and the U-shaped opening of the U-shaped connector faces the opposite direction of the circular connector.

10. A method of roll pitch precise operational control based on an apparatus for roll pitch precise operational control as defined in claim 1, said method comprising:

the second swing arm connecting end (32) of the first swing arm module (3) is sleeved at the end part of the first roll shaft (1), so that the first swing arm module (3) is rotationally connected with the first roll shaft (1);

the third swing arm connecting end (33) of the first swing arm module (3) is movably connected with the base (5), so that the first swing arm module (3) swings around the connecting position of the third swing arm connecting end (33) and the base (5), and the first roll shaft (1) swings along with the first swing arm module (3);

-connecting the roller element with the base (5);

rotationally connecting the first clamping connection end (22) of the clamping module (2) with the first swing arm connection end (31), and rotationally connecting the second clamping connection end (23) of the clamping module (2) with the roll shaft element;

Sleeving the first distance adjusting connecting end (42) of the distance adjusting module (4) at the end part of the first roll shaft (1) to realize the rotary connection of the distance adjusting module (4) and the first roll shaft (1); pushing the second distance adjusting connecting end (43) of the distance adjusting module (4) against the roll shaft element;

the clamping executing piece (21) applies a tensile force between the first swing arm module (3) and the roll shaft element through the first clamping connecting end (22) and the second clamping connecting end (23), and meanwhile, the distance adjusting executing piece (41) provides support between the first roll shaft (1) and the roll shaft element through the first distance adjusting connecting end (42) and the second distance adjusting connecting end (43).