CN115805118A - Multi-roller grinding machine, control method and medium - Google Patents

Abstract

The invention discloses a multi-roller grinder, a control method and a medium, wherein the multi-roller grinder comprises the following components: the grinding machine comprises a grinding machine body, and a roll shaft type feeding control module and a grinding roll module which are arranged in the grinding machine body; the roller type feeding control module is used for controlling the feeding process on the grinding machine body; the roll shaft type feeding control module is also used for adjusting the roll shaft rotating speed of the roll shaft type feeding control module and the spacing distance between the roll shaft type feeding control module and the grinding roll module; the roller type feeding control module controls the feeding speed of the material to be ground through the adjustment of the rotating speed and the spacing distance of the roller shafts; the roller type feeding control module is used for respectively adapting a plurality of grinding fineness respectively corresponding to materials to be ground, which are made of a plurality of materials, through the control of feeding speed; the invention can carry out accurate feeding control in the multi-roller grinding machine, can achieve better grinding effect for different materials, and can flexibly meet the grinding fineness requirements of the materials made of different materials.

Description

Multi-roller grinding machine, control method and medium

Technical Field

The invention relates to the technical field of grinding machines, in particular to a multi-roller grinding machine, a control method and a medium, which are applied to the field of roller shaft type grinding machines.

Background

Currently known grinding machines include three-roll grinding machines, five-roll grinding machines, multi-roll grinding machines and the like, wherein the three-roll grinding machine mainly comprises three roll shafts, the axes of which are in a straight line and are horizontally arranged, and part of the three-roll grinding machines are non-linearly arranged; the three-roller grinding machine is characterized in that the slow roller and the middle roller are responsible for feeding and primary grinding dispersion, the middle roller and the fast roller are responsible for grinding dispersion, the rotating speeds of the slow roller, the middle roller and the fast roller are sequentially increased, otherwise, normal material carrying can not be ensured and the grinding dispersion effect is not achieved, and the three-roller grinding machine controls feeding by adjusting the gap between the slow roller and the middle roller;

the existing five-roller grinder mainly comprises a roller and two rollers which are responsible for feeding and primary grinding and dispersion, and a three roller, four rollers and five rollers which are mainly responsible for grinding and dispersion; the five-roller grinding machine is mainly responsible for feeding and primary grinding and dispersion through one roller and two rollers, the rotating speed can be independently adjusted, and is responsible for post-grinding and dispersion through three rollers, four rollers and five rollers, and the rotating speed can be independently adjusted; in this way, however, the rotating speeds of the first roller, the second roller, the third roller, the fourth roller and the fifth roller of the five-roller grinding machine are still increased gradually in sequence, otherwise, materials cannot be brought into the third roller from the second roller, and the five-roller grinding machine cannot work normally, so that the speed of the second roller is lower than that of the third roller in the five-roller grinding machine, and the rotating speed difference between the second roller and the third roller needs to be controlled in a reasonable range to ensure the materials to be brought in normally; therefore, in the five-roller grinding machine, the first roller and the second roller for controlling feeding are limited by the rotating speeds of the three rollers, the four rollers and the five rollers, and certain limitation exists, so that the five-roller grinding machine is only suitable for grinding materials with certain viscosity and is not suitable for grinding powder due to the special arrangement structure of the five-roller grinding machine (the first roller and the five rollers are arranged obliquely upwards in sequence);

in the existing three-roller machine, one roller and two rollers have a feeding control function, but the feeding control capability is poor, particularly for powder materials, when the rotating speed of a discharge roller is too high, the rotating speed of the feed roller can be synchronously increased, so that the problems of large feeding amount, frequent jamming, equipment shaking and the like are caused; when the rotating speed of the roll shaft is slow, although feeding is relatively stable, the grinding efficiency is obviously reduced, and the feeding control and the grinding/discharging efficiency cannot be balanced/compatible at the same time;

to sum up, present three-roller machine and multi-roller grinding machine have a plurality of roller shafts and participate in the grinding dispersion, and the leading features is that all roller shafts are grinding roller, set up the inner structure of a plurality of roller shafts purpose increase grinding number of times, no special control feeding, therefore the feed rate control is unreasonable, can't reach the fineness of grind and the grinding efficiency of corresponding requirement, and this makes present three-roller machine and multi-roller grinding machine narrower to the accommodation of material, and the range of application receives the restriction.

Disclosure of Invention

The invention aims to provide a multi-roller grinder, a control method and a medium aiming at the problems in the prior art, and further solves the problems that the existing three-roller grinder and multi-roller grinder in the prior art have no special internal structure for controlling feeding, are unreasonable in feeding amount control, cannot reach the grinding fineness and grinding efficiency which meet corresponding requirements, are narrow in material application range and are limited in application range.

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

in one aspect, the present invention provides a multi-roll grinder comprising:

the grinding machine comprises a grinding machine body, and a roll shaft type feeding control module and a grinding roll module which are arranged in the grinding machine body; the roller type feeding control module is arranged close to the grinding roller module;

the roller type feeding control module is used for controlling the feeding process on the grinding machine body; the roller type feeding control module is also used for adjusting the roller rotating speed of the roller type feeding control module and the spacing distance between the roller type feeding control module and the grinding roller module; the roller type feeding control module controls the feeding speed of the material to be ground through adjusting the rotating speed of the roller shaft and the spacing distance; the roller type feeding control module is used for respectively adapting a plurality of grinding fineness respectively corresponding to materials to be ground, which are made of a plurality of materials, through the control of the feeding speed;

the grinding roller module is used for grinding the materials to be ground transmitted by the roller shaft type feeding control module.

As an improved solution, the roll type feeding control module comprises: a feeding control roller and feeding roller spacing and rotation speed control unit;

the feeding roller distance and rotating speed control unit is arranged in the grinding machine body and is close to the feeding position of the grinding machine body; the feeding control rollers are arranged on the feeding roller spacing and rotating speed control unit and face the grinding roller module;

the feeding control roller is used for conveying the material to be ground at the feeding position;

the feeding roller interval and rotating speed control unit is used for adjusting the rotating speed of the feeding control roller and the spacing distance between the feeding control roller and the feeding position or between the grinding roller modules according to the grinding roller rotating speed of the grinding roller modules and a plurality of material materials.

As an improved solution, the grinding roller module comprises: a movable roller unit and a fixed roller unit;

the movable roller unit and the fixed roller unit are adjacently arranged in the grinding machine body;

the movable roller unit and the fixed roller unit are parallel to each other, and the movable roller unit or the fixed roller unit is arranged corresponding to the feeding control roller;

the fixed roller unit is connected with the movable roller unit through a clamping unit;

the movable roller unit and the fixed roller unit are used for grinding materials;

the clamping unit is used for controlling a gap between the fixed roller unit and the movable roller unit and providing a clamping force between the fixed roller unit and the movable roller unit.

As an improvement, the multi-roll grinder further comprises: a rotational force control unit;

the rotating force control unit is arranged in the grinding machine body at a position corresponding to the movable roller unit; one end of the rotating force control unit is in transmission connection with the movable roller unit, and the rotating force control unit is used for controlling the grinding action between the movable roller unit and the fixed roller unit;

or the like, or a combination thereof,

the rotating force control unit is arranged in the grinding machine body at a position corresponding to the fixed roller unit; one end of the rotating force control unit is in transmission connection with the fixed roller unit, and the rotating force control unit is used for controlling the grinding action between the fixed roller unit and the movable roller unit;

or the like, or, alternatively,

the rotating force control unit is arranged outside the grinding machine body and corresponds to the position of the movable roller unit; one end of the rotating force control unit penetrates through the grinding machine body and is in transmission connection with the movable roller unit, and the rotating force control unit is used for controlling the grinding action between the movable roller unit and the fixed roller unit;

or the like, or, alternatively,

the rotating force control unit is arranged outside the grinding machine body and corresponds to the position of the fixed roller unit; one end of the rotating force control unit penetrates through the grinding machine body and is in transmission connection with the fixed roller unit, and the rotating force control unit is used for controlling the grinding action between the fixed roller unit and the movable roller unit.

As an improved solution, the fixed roller unit includes: a fixed grinding roller and a fixed bearing mounting seat; the fixed grinding roller is horizontally arranged in the grinding machine body, the fixed grinding roller corresponds to the feeding control roller, two ends of the fixed grinding roller are rotatably connected with inner walls of two sides of the grinding machine body through the fixed bearing mounting seats, and the fixed bearing mounting seats are fixed on the inner walls of the grinding machine body.

As a modification, the movable roller unit includes: the device comprises at least two movable rollers and two groups of swing bearing mounting seats corresponding to the two movable rollers respectively;

the two movable rollers are arranged in parallel to the fixed grinding roller and are respectively close to the feeding control roller and the fixed grinding roller;

the two movable rollers are respectively arranged at the upper position and the lower position of the fixed grinding roller;

two ends of each movable roller are respectively and rotatably connected with the inner walls of two sides of the grinding machine body through the swinging bearing mounting seats; and each group of oscillating bearing mounting seats is hinged with the inner wall of the grinding machine body through a connecting piece.

As an improved scheme, a material bearing unit is arranged between the grinding roller module and the bottom of the grinding machine body, one side of the material bearing unit is installed in the grinding machine body through a supporting piece, a distance is arranged between the material bearing unit and the grinding roller module, and the specification of the material bearing unit is matched with that of the grinding roller module;

the grinding roller module further comprises: an auxiliary scraper module; the auxiliary scraper module is respectively arranged close to one side of the bottom of the movable roller unit and one side of the bottom of the fixed roller unit.

As a modified scheme, the clamping units are at least two groups, and each group of the clamping units comprises at least two clamping mechanisms;

each group of clamping units is respectively connected between the adjacent movable roller and the fixed grinding roller;

or the like, or a combination thereof,

the two groups of clamping units are respectively connected between the adjacent movable rollers and the fixed grinding rollers and between the adjacent two movable rollers;

the two clamping mechanisms of each group of clamping units are respectively arranged corresponding to two ends of the movable roller;

when each group of clamping units is respectively connected between the adjacent movable roller and the fixed grinding roller, two ends of the two clamping mechanisms are respectively connected with the connecting pieces and the fixed bearing mounting seats on the two sides of the clamping mechanism;

the fixed grinding roller, the feeding control roller and the arrangement mode among the movable rollers comprise: z-shaped arrangement, straight arrangement and V-shaped arrangement.

In another aspect, the present invention further provides a control method, including the following steps:

acquiring the material quality of a material to be ground and the grinding roller rotating speed of the grinding roller module;

setting rotation speed and spacing control parameters based on the material quality and the rotation speed of the grinding roller;

and calling the feeding roller interval and rotating speed control unit to operate the feeding control rollers according to the rotating speed and the interval control parameters.

In another aspect, the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the control method.

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

1. the multi-roller grinding machine can realize that the feeding control roller matched with the grinding roller shaft is added in the multi-roller grinding machine, the rotating speed of the feeding control roller can be independently adjusted and is not limited by the rotating speeds of the slow roller, the middle roller and the fast roller, and further, the gap between the feeding control roller and the slow roller can be intelligently adjusted; in the invention, the feeding rollers are only responsible for feeding control and do not participate in grinding, so the rotating speed of the feeding rollers can be lower than that of the slow rollers or higher than that of the slow rollers according to the feeding control requirement.

2. The multi-roller grinder can accurately control the feeding amount through the mutual matching of the roller shaft type feeding control module and the grinding roller module, and has higher temperature control requirement of the roller shaft because the more the feeding amount of equipment is, the more the heat productivity is in the production grinding process in actual application.

3. The multi-roller grinding machine can ensure that the control of the feeding amount is more uniform and stable through the mutual matching of the roller shaft type feeding control module and the grinding roller module, and the effect is obviously superior to that of the traditional three-roller machine and the V-shaped arrangement three-roller machine in practical application.

4. The control method can realize intelligent material identification, and the rotating speed of the corresponding feeding structure and the distance between the feeding structure and the grinding roll shaft are set according to the specific material matching, so that the intelligent feeding control of the multi-roll grinding machine is finally realized, and the intelligence and the applicability of the multi-roll grinding machine are improved.

5. The computer readable storage medium can realize the intelligent operation of the guide roller type feeding control module, and further realize the control method.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the construction of a multi-roll grinder according to embodiment 1 of the present invention;

FIG. 2 is a schematic diagram showing a detailed structure of a multi-roll grinder according to embodiment 1 of the present invention;

fig. 3 is a schematic flow chart of a control method according to embodiment 2 of the present invention;

the reference numerals in the drawings are as follows:

101. grinding the machine body; 1. a feed roller interval and rotation speed control unit; 2. a feed control roller; 3. a feed input unit; 4. a slow roll; 5. a swing bearing mount; 6. a movable roller; 7. a material carrying unit; 8. a frame; 9. a rotational force control unit; 10. an auxiliary scraper module; 11. fixing the grinding roller; 12. fixing a bearing mounting seat; 13. a clamping unit; 14. a transmission device; 15. a connecting member; 16. and (4) feeding a material inlet.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

In the description of the present invention, it should be noted that the described embodiments of the present invention are a part of the embodiments of the present invention, and not all embodiments; all other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The terms "first," "second," and the like in the description and in the claims, as well as in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments herein described are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.

Example 1

The present embodiment provides a multi-roll grinder, as shown in fig. 1 and 2, including: the grinding machine comprises a grinding machine body 101, a roll shaft type feeding control module and a grinding roll module arranged in the grinding machine body 101; in this embodiment, as shown in fig. 2, the multi-roller grinder in the embodiment 1 is a four-roller grinder, and is specifically determined according to the number of roller shafts in the grinding roller module; as an embodiment, the grinding roller module is installed at the bottom of the grinding machine body 101, and a distance is provided between the top of the grinding roller module and the top of the grinding machine body 101, of course, if the feeding position of the grinding machine body 101 is not the top thereof, the distance is not required; as an example, a roll-type feeding control end is arranged on the roll-type feeding control module, a feeding end is arranged outside the grinding machine body 101, and the roll-type feeding control end is located inside the grinding machine body 101 and close to the grinding roll module; the feeding end is used for conveying materials to be ground to the roll shaft type feeding control end; the roller type feeding control module controls the transmission speed of the material to be ground to the grinding machine body 101 through the roller type feeding control end; the grinding roller module is used for grinding the material to be ground transmitted by the roller shaft type feeding control end; finally, through the cooperation, in practical application, the roller shaft type feeding control module can adjust the roller shaft speed of the roller shaft type feeding control module and the spacing distance between the roller shaft type feeding control module and the grinding roller module; the roller type feeding control module further realizes the control of the feeding speed of the materials to be ground on the grinding machine body 101 through the adjustment of the feeding speed and the spacing distance, and further realizes the respective adaptation of the grinding fineness of the materials to be ground made of a plurality of different materials through the control of the feeding speed, so that the application can achieve the precise and high-quality grinding effect on various materials, and flexibly and conveniently meet the requirements of different grinding fineness of different materials;

as an embodiment of the present invention, the top of the grinding machine body 101 is provided with a feeding hole 16 (i.e. a feeding position); roller formula feeding control module group includes: a feeding control roller 2 and a feeding roller spacing and rotating speed control unit 1; in the present embodiment, the feed roller pitch and rotation speed control unit 1 is composed of a rotation speed control unit and a pitch control unit; the feeding end comprises a feeding input unit 3, and a feeding control roller 2 and a feeding roller spacing and rotating speed control unit 1 (a rotating speed control unit and a spacing control unit) is a roller type feeding control end;

the feeding input unit 3 is arranged corresponding to the feeding hole 16 and is communicated with the feeding hole 16; in the present embodiment, the feed input unit 3 is used for inputting the material to be ground to the feed inlet 16; the feeding roller distance and rotating speed control unit 1 is arranged at a position close to the feeding hole 16 in the roller shaft type feeding control module; the feeding roller interval and rotating speed control unit 1 is used for flexibly controlling the rotating speed of the feeding control roller 2 and the interval distance between the feeding control roller 2 and the feeding position or between the grinding roller modules according to the grinding roller rotating speed of the grinding roller modules and a plurality of material materials; therefore, the spacing control unit is used for flexibly controlling the spacing distance between the feeding control roller 2 and the feeding position or between the grinding roller modules according to the grinding roller rotating speed of the grinding roller modules and a plurality of material materials; the feeding control rollers 2 are arranged on the feeding roller spacing and rotating speed control unit 1 and face the grinding roller module; the rotating speed control unit is arranged corresponding to and close to the feeding control roller 2, one end of the rotating speed control unit is in transmission connection with the feeding control roller 2, so that the rotating speed control of the feeding control roller 2 is realized, and the rotating speed control unit is used for flexibly adjusting the rotating speed of the feeding control roller 2 according to the rotating speed of the grinding roller module and a plurality of material materials; the feeding control roller 2 is used for conveying the material to be ground at the feeding hole 16; in the embodiment, the spacing control unit can adopt an intelligent electric control telescopic mechanism to further control the displacement of the feeding control roller 2; the feed input unit 3 in this embodiment is a feed hopper communicating with the feed inlet 16; further, the distance control unit can also be a device which is not limited to a specific form and can realize gap adjustment, such as a slide block, a screw rod, a hydraulic cylinder and the like. The drive can be an electric motor, an electric roller, a hydraulic motor and the like, but is not limited to a specific device capable of realizing speed regulation drive.

As an embodiment of the present invention, the grinding roller module includes: a movable roller unit and a fixed roller unit; the movable roller unit and the fixed roller unit are adjacently arranged in the grinding machine body 101, the movable roller unit and the fixed roller unit are parallel to each other, and the movable roller unit or the fixed roller unit is arranged corresponding to the feeding control roller 2; the fixed roller unit is connected with the movable roller unit through a clamping unit 13; the movable roller unit and the fixed roller unit are used for grinding materials; the clamping unit 13 is used for controlling the gap between the fixed roller unit and the movable roller unit and providing a clamping force between the fixed roller unit and the movable roller unit; correspondingly, as another embodiment, optionally, the movable roller unit is arranged at one side of the fixed roller unit, or the movable roller unit is arranged between the fixed roller unit and the feeding control roller 2, or the movable roller unit is arranged around the fixed roller unit, and correspondingly, the embodiment in fig. 2 is a manner that the movable roller unit is arranged around the fixed roller unit;

as an embodiment of the present invention, the multi-roll grinder of the present invention further comprises: a rotational force control unit 9; the turning force control unit 9 employs a prime mover in the present embodiment; the rotating force control unit 9 is used for outputting a rotating force to drive the movable roller unit to rotate, and the movable roller unit is linked with the fixed roller unit through a linkage assembly between the movable roller unit and the fixed roller unit so as to realize a grinding effect; optionally, the rotating force control unit 9 may drive the fixed roller unit to rotate or drive the movable roller unit to rotate due to different application scenarios, and when the fixed roller unit or the movable roller unit is driven to rotate by the rotating force control unit 9, the fixed roller unit or the movable roller unit may realize transmission with an adjacent roller shaft through a linkage assembly connected between the fixed roller unit or the movable roller unit and the adjacent roller shaft; for example, the fixed roller unit and the movable roller unit are linked through a linkage assembly between the fixed roller unit and the movable roller unit, so that the grinding effect is realized; optionally, in a different embodiment, for example, when two movable roller units are adjacently disposed, the two movable roller units may be linked by a linkage assembly between the two movable roller units, so as to achieve a grinding effect between the two movable roller units, where the linkage assembly includes, but is not limited to, a gear in this embodiment; therefore, in practical application, the rotating force control unit 9 can be disposed in the grinding machine body 101, or disposed outside the grinding machine body 101, and specifically can be in transmission connection with the movable roller unit or the fixed roller unit;

therefore, as an embodiment of the present invention, optionally, the rotation force control unit 9 is disposed inside the polishing machine body 101 at a position corresponding to the movable roller unit; one end of the rotating force control unit 9 is in transmission connection with the movable roller unit through a corresponding transmission part, and the rotating force control unit 9 is used for controlling the grinding action between the movable roller unit and the fixed roller unit;

or the like, or, alternatively,

optionally, the rotating force control unit 9 is disposed inside the grinding machine body 101 at a position corresponding to the fixed roller unit; one end of the rotating force control unit 9 is in transmission connection with the fixed roller unit through a corresponding transmission component, and the rotating force control unit 9 is used for controlling the grinding action between the fixed roller unit and the movable roller unit;

or the like, or, alternatively,

alternatively, the rotating force control unit 9 is arranged outside the grinder body 101 at a position corresponding to the movable roller unit; one end of the rotating force control unit 9 penetrates into the grinding machine body 101 and is in transmission connection with the movable roller unit through a corresponding transmission part, and the rotating force control unit 9 is used for controlling the grinding action between the movable roller unit and the fixed roller unit;

or the like, or, alternatively,

the rotational force control unit 9 is disposed outside the grinder body 101 at a position corresponding to the fixed roller unit; one end of the rotational force control unit 9 penetrates into the grinding machine body 101 and is in transmission connection with the fixed roller unit through a corresponding transmission component, and the rotational force control unit 9 is used for controlling the grinding action between the fixed roller unit and the movable roller unit;

as shown in fig. 2, in the present embodiment, the rotational force control unit 9 is selected to be disposed at a bottom position in the grinding machine body 101, and the rotational force control unit 9 is in transmission connection with the movable roller unit below the fixed roller unit; as another embodiment, the rotational force control unit 9 may be disposed at a side position or a top position of the grinder body 101;

as an embodiment of the present invention, the grinding roller module further includes: an auxiliary doctor module 10; the auxiliary scraper module 10 is respectively arranged close to one sides of the bottoms of the movable roller unit and the fixed roller unit; in the present embodiment, there are three auxiliary scraper modules 10, and each auxiliary scraper module 10 is disposed corresponding to each roller shaft, as shown in fig. 2, the auxiliary scraper module 10 adopts a discharging scraper device, which is used for scraping off materials on the roller shaft;

as an embodiment of the present invention, the fixing roller unit includes: a fixed grinding roller 11 and a fixed bearing mount 12; the fixed grinding roller 11 is horizontally arranged in the grinding machine body 101 at a position corresponding to the feeding control roller 2, in this embodiment, a distance is arranged between the fixed grinding roller 11 and the feeding control roller 2, and the fixed grinding roller 11 is arranged in parallel to the feeding roller in the feeding control roller 2; both ends of the fixed grinding roller 11 are rotatably connected with the inner walls of both sides of the grinding machine body 101 through the fixed bearing mounting seats 12, the fixed bearing mounting seats 12 are fixed on the inner wall of the grinding machine body 101, and the fixed grinding roller 11 can only rotate by taking the fixed bearing mounting seats 12 as a central shaft and cannot move up and down;

as an embodiment of the present invention, the movable roller unit includes: at least two movable rollers 6 and two groups of swing bearing mounting seats 5 respectively corresponding to the two movable rollers 6; specifically, the two movable rollers 6 are both arranged parallel to the fixed grinding roller 11, and in the two movable rollers 6, any one of the movable rollers 6 must be arranged close to the feeding control roller 2, and the other movable roller 6 is arranged close to the fixed grinding roller 11, and when the two movable rollers 6 are located at the same side of the fixed grinding roller 11, for example, when the two movable rollers 6 are both located above the fixed grinding roller 11, or when the two movable rollers 6 are both located below the fixed grinding roller 11, the two movable rollers 6 also need to be connected by the clamping unit 13, so as to realize the distance control between the movable rollers 6; in the present embodiment, as shown in fig. 2, the two movable rollers 6 are disposed at positions above and below the fixed grinding roller 11, respectively; two ends of each movable roller 6 are respectively and rotatably connected with the inner walls of two sides of the grinding machine body 101 through the swing bearing mounting seats 5; each group of swing bearing mounting seats 5 is hinged with the inner wall of the grinding machine body 101 through a connecting piece 15; in the present embodiment, as shown in fig. 2, the connecting member 15 is integrally designed with the swing bearing mounting base 5, and the swing bearing mounting base 5 usually has two connecting members 15, and both sides of the swing bearing mounting base 5 are respectively hinged with the inner wall of the grinding machine body 101 and the clamping unit through the connecting members 15; the grinding machine body 101 is a peripheral housing shown in fig. 2;

as an embodiment of the present invention, a material bearing unit 7 is disposed between the grinding roller module and the bottom of the grinder body 101, and in this embodiment, a distance is provided between the movable roller unit and the rotational force control unit 9; the material bearing unit 7 is arranged at a position between the rotating force control unit 9 and the movable roller unit; one side of the material bearing unit 7 is arranged in the grinding machine body 101 through a supporting piece, and the supporting piece is used for fixedly arranging the material bearing unit 7 and can be realized by a pin shaft; a distance is arranged between the material bearing unit 7 and the grinding roller module, and the specification of the material bearing unit 7 is matched with that of the grinding roller module; the material carrying unit 7 in this embodiment adopts a receiving tray for receiving the materials scraped by the partial auxiliary scraper module 10 and the materials dropped during grinding;

as an embodiment of the present invention, as shown in fig. 2, there are at least two groups of the clamping units 13, and when the movable rollers 6 are distributed on the upper and lower sides of the fixed grinding roller 11, each group of the clamping units 13 is respectively connected between the adjacent movable roller 6 and the fixed grinding roller 11; or, when the movable rollers 6 are distributed on one side of the fixed grinding roller 11, two sets of the clamping units 13 are respectively connected between the adjacent movable rollers 6 and the fixed grinding roller 11, and between the adjacent two movable rollers 6, for example, when the two movable rollers 6 are sequentially arranged below the fixed grinding roller 11, one set of the clamping units 13 is arranged between the fixed grinding roller 11 and the adjacent movable roller 6, and the other set of the clamping units 13 is arranged between the two movable rollers 6 below the fixed grinding roller 11; in the present embodiment, as shown in fig. 2, two of the nip units 13 are provided at positions above and below the fixed grinding roll 11, respectively, and each of the nip units 13 is provided corresponding to a position between the fixed grinding roll 11 and the movable roll 6, respectively; in the present embodiment, each set of clamping units 13 includes two identical clamping mechanisms symmetrically disposed to each other; the two clamping mechanisms are respectively arranged corresponding to the two ends of the movable roller 6, namely when the movable roller 6 is connected with the fixed grinding roller 11, the two ends of the movable roller 6 are respectively connected with the two ends of the fixed grinding roller 11 through the two clamping mechanisms; when the movable roller 6 is connected with the movable roller 6, two ends of the movable roller 6 are respectively connected with two ends of the movable roller 6 through two clamping mechanisms, and then the distance between two adjacent roller shafts and the clamping force are stably adjusted through the two clamping mechanisms; correspondingly, when each set of the clamping units 13 is connected between the adjacent movable roller 6 and the fixed grinding roller 11, two ends of two clamping mechanisms of the clamping unit 13 are respectively connected with the connecting piece 15 and the fixed bearing mounting seat 12 on two sides of the clamping mechanism, for example, in an embodiment shown in fig. 2, one end of each clamping mechanism is hinged with one side of the connecting piece 15 of the adjacent movable roller 6 of the clamping mechanism, and the other end of each clamping mechanism is connected with one side of the fixed bearing mounting seat 12 of the fixed grinding roller 11; the distance between the roll shafts is controlled through the clamping mechanism through the hinging action of the clamping mechanism and the connecting piece 15;

as an embodiment of the present invention, the feed control roller 2 is disposed near the movable roller 6 above the fixed grinding roller 11; in the present embodiment, the movable roll 6 above the fixed grinding roll 11 is a slow roll 4, the movable roll 6 below the fixed grinding roll 11 is a fast roll, in fig. 2, the slow roll 4 and the fast roll are respectively installed on the upper swing bearing installation seat 5 and the lower swing bearing installation seat 5, one end of each swing bearing installation seat 5 is hinged to the inner wall of the frame 8 or the grinding machine body 101, the other end of each swing bearing installation seat 5 is hinged to the clamping unit 13, and under the control of the clamping unit 13, the adjustment of the distance between the rolls can be realized, and then the clamping rolls are used for grinding; correspondingly, each grinding roller is provided with rotary power by the prime motor, the fast roller is firstly driven, the fast roller drives the fixed grinding roller 11 through the reduction gear between the rollers, and the fixed grinding roller 11 drives the slow roller 4 to rotate through the reduction gear between the rollers; the slow roller 4, the fixed grinding roller 11 and the fast roller are controlled by a gear transmission device 14 or corresponding mechanisms to realize the transmission, and the gear transmission device 14 includes but is not limited to any device capable of realizing the functions of the speed difference and the transmission, such as gears, belt pulleys and the like, but is not limited to a specific device capable of realizing the functions;

in one embodiment of the present invention, the diameters of the movable roller 6, the fixed grinding roller 11 and the feed control roller 2 may be equal or different; the included angle of the central connecting line between two adjacent roll shafts is set according to the specific actual condition; the clamping force provided by the clamping mechanism in this embodiment is much smaller than the clamping force required for grinding, and optionally, the clamping mechanism may be a mechanical clamping, or an electric clamping by a stepping motor or a servo motor, or a pneumatic cylinder clamping, or a hydraulic clamping by a hydraulic cylinder, etc., but is not limited to a specific type of device capable of realizing clamping;

as an embodiment of the present invention, optionally, the movable roller 6 above the fixed grinding roller 11 may be provided as a non-grinding roller, and then the movable roller 6 above the fixed grinding roller 11 is used to cooperate with the feeding control roller 2 to realize the feeding control; normally, only one end of the grinding machine body 101 needs to be fed and the other end needs to be discharged, and only one corresponding feeding control roller 2 is used, however, it is conceivable that the number of the feeding control rollers 2 may be multiple if the grinding machine body is used for feeding in other similar directions, which is not limited herein, and at least one is used in the present application;

as an embodiment of the present invention, the arrangement among the fixed grinding roll 11, the feed control roll 2, and the movable roll 6 includes, but is not limited to: a Z-shaped arrangement, a straight arrangement and a V-shaped arrangement, wherein the mode shown in figure 2 is the Z-shaped arrangement;

as an embodiment of the present invention, when the four-roller grinder is used, the material to be ground is put into the feeding input unit 3, the material is brought into the grinding machine body 101 through the feeding control roller 2 and the slow roller 4, and the material is smoothly and uniformly brought into the area between the slow roller 4 and the fixed grinding roller 11 by setting the proper gap and rotation speed difference between the feeding control roller 2 and the slow roller 4; during grinding, materials are firstly ground for the first time through the slow roller 4 and the fixed grinding roller 11, scraped off through the fixed grinding roller 11 and the auxiliary scraper module 10 on the fixed grinding roller 11 and fall between the fixed grinding roller 11 and the fast roller, and ground for the second time; finally, the materials ground by the fast roller are scraped off by the auxiliary scraper module 10 at the bottommost part and enter the receiving hopper 7; in the present embodiment, the feeding control roller 2 is only responsible for feeding, so the feeding control roller 2 and the slow roller 4 have no specific requirement for the rotational speed difference, and the distance and the rotational speed difference between the feeding control roller 2 and the slow roller 4 are mainly set according to the material of the fed material.

Example 2

This example provides a control method for use in the multi-roll grinder described in example 1, as shown in fig. 3, comprising the steps of:

s100, obtaining the material of the material to be ground and the grinding roller rotating speed of the grinding roller module;

s200, setting rotation speed and interval control parameters based on the material quality and the rotating speed of the grinding roller;

s300, calling the feeding roller interval and rotating speed control unit to operate the feeding control rollers according to the rotating speed and the interval control parameters;

in this embodiment, because different materials to be ground are different in material quality and form, and the speed of the feed roller is related to the speed of the grinding roller, when the multi-roller grinding machine described in embodiment 1 is used, first, the material quality of the materials to be ground and the rotation speed of the grinding roller module are obtained, and the most suitable rotation speed of the feed control roller and the distance control parameter between the feed control roller and the grinding roller are set according to the material quality and the rotation speed of the grinding roller, so that the feeding speed is set according to the rotation speed of the grinding roller adjacent to the feed control roller, and the rotation speed difference of the most suitable feeding is ensured; finally, the feeding roller spacing and rotating speed control unit is operated according to the set rotating speed and the set spacing control parameters, the distance kept between the feeding control roller and the adjacent grinding roller is controlled to be matched with the spacing control parameters through the feeding roller spacing and rotating speed control unit, meanwhile, the feeding control roller is driven to rotate for feeding according to the corresponding rotating speed, and finally, the materials are stably and uniformly brought into grinding, and the grinding fineness adaptation of the materials of different materials is realized;

as an embodiment of the present invention, the method further includes: acquiring real-time rotating speeds of the fixed grinding roller and the movable roller in the embodiment 1, detecting the running time and the discharging quality of the multi-roller grinding machine in real time, and calculating the grinding efficiency of the multi-roller grinding machine based on the running time and the discharging quality; based on the grinding efficiency, the rotating speed and the spacing control parameters are properly adjusted, so that the increase or reduction of the feeding amount is realized, the grinding efficiency/progress is accelerated or reduced, the reduction of the grinding efficiency caused by the abnormal grinding condition between the fixed grinding roller and the movable roller during grinding is prevented, or the active feeding is stopped to control when the equipment cannot continue grinding caused by the abnormal grinding condition between the fixed grinding roller and the movable roller, and the intelligence of the method is improved;

as an embodiment of the present invention, the above-mentioned acquisition mode of each parameter is obtained by acquiring data through a sensor, and performing a logic operation on the data through an intelligent computing chip such as a Micro Controller Unit (MCU).

Example 3

The present embodiments provide a computer-readable storage medium comprising:

the storage medium is used for storing computer software instructions for implementing the control method described in embodiment 2 above, and includes a program for executing the control method; specifically, the executable program may be embedded in the multi-roller grinder described in embodiment 1, so that the multi-roller grinder may implement the control method described in embodiment 1 by executing the embedded executable program.

Furthermore, the computer-readable storage medium of the present embodiments may take any combination of one or more readable storage media, where a readable storage medium includes an electronic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof.

Different from the prior art, the multi-roller grinding machine, the control method and the medium can realize that the feeding control roller matched with the grinding roller shaft is added in the multi-roller grinding machine, the rotating speed of the feeding control roller can be independently adjusted and is not limited by the rotating speeds of the slow roller, the middle roller and the fast roller, the material of the material to be ground can be identified, and corresponding feeding control is carried out according to the identified material.

It should be understood that, in various embodiments herein, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments herein.

It should also be understood that, in the embodiments herein, the term "and/or" is only one kind of association relation describing an associated object, meaning that three kinds of relations may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments herein.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present invention may be implemented in a form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A multi-roll grinding mill, comprising: the grinding machine comprises a grinding machine body (101), and a roll shaft type feeding control module and a grinding roll module which are arranged in the grinding machine body (101); the roller type feeding control module is arranged close to the grinding roller module;

the roller type feeding control module is used for controlling the feeding process on the grinding machine body (101);

the roller type feeding control module is also used for adjusting the roller rotating speed of the roller type feeding control module and the spacing distance between the roller type feeding control module and the grinding roller module; the roller type feeding control module controls the feeding speed of the material to be ground through adjusting the rotating speed of the roller shaft and the spacing distance; the roller type feeding control module is used for respectively adapting a plurality of grinding fineness corresponding to materials to be ground of a plurality of material materials through controlling the feeding speed;

the grinding roller module is used for grinding the materials to be ground transmitted by the roller shaft type feeding control module.

2. A multi-roll grinding mill according to claim 1, characterized in that:

roller formula feeding control module group includes: a feeding control roller (2) and a feeding roller spacing and rotating speed control unit (1);

the feeding roller interval and rotating speed control unit (1) is arranged in the grinding machine body (101) and is close to the feeding position of the grinding machine body (101); the feeding control rollers (2) are arranged on the feeding roller spacing and rotating speed control unit (1) and face the grinding roller module;

the feeding control roller (2) is used for conveying the material to be ground at the feeding position;

the feeding roller interval and rotating speed control unit (1) is used for adjusting the rotating speed of the feeding control roller (2) and the spacing distance between the feeding control roller (2) and the feeding position or between the grinding roller modules according to the grinding roller rotating speed of the grinding roller modules and a plurality of material materials.

3. A multi-roll grinding mill according to claim 2, characterized in that:

the grinding roller module comprises: a movable roller unit and a fixed roller unit;

the movable roller unit and the fixed roller unit are adjacently arranged in the grinding machine body (101);

the movable roller unit and the fixed roller unit are parallel to each other, and the movable roller unit or the fixed roller unit is arranged corresponding to the feeding control roller (2);

the fixed roller unit is connected with the movable roller unit through a clamping unit (13);

the movable roller unit and the fixed roller unit are used for grinding materials;

the clamping unit (13) is used for controlling a gap between the fixed roller unit and the movable roller unit and providing a clamping force between the fixed roller unit and the movable roller unit.

4. A multi-roll grinding mill according to claim 3, characterized in that:

the multi-roll grinder further comprises: a rotational force control unit (9);

the rotating force control unit (9) is arranged in the grinding machine body (101) at a position corresponding to the movable roller unit; one end of the rotating force control unit (9) is in transmission connection with the movable roller unit, and the rotating force control unit (9) is used for controlling the grinding action between the movable roller unit and the fixed roller unit;

or the like, or a combination thereof,

the rotating force control unit (9) is arranged in the grinding machine body (101) at a position corresponding to the fixed roller unit; one end of the rotating force control unit (9) is in transmission connection with the fixed roller unit, and the rotating force control unit (9) is used for controlling the grinding action between the fixed roller unit and the movable roller unit;

or the like, or, alternatively,

the rotating force control unit (9) is arranged outside the grinding machine body (101) and corresponds to the position of the movable roller unit; one end of the rotating force control unit (9) penetrates through the grinding machine body (101) and is in transmission connection with the movable roller unit, and the rotating force control unit (9) is used for controlling grinding action between the movable roller unit and the fixed roller unit;

or the like, or, alternatively,

the rotating force control unit (9) is arranged outside the grinding machine body (101) at a position corresponding to the fixed roller unit; one end of the rotating force control unit (9) penetrates through the grinding machine body (101) and is in transmission connection with the fixed roller unit, and the rotating force control unit (9) is used for controlling grinding action between the fixed roller unit and the movable roller unit.

5. A multi-roll grinding mill according to claim 4, characterized in that:

the fixing roller unit includes: a fixed grinding roller (11) and a fixed bearing mounting seat (12);

fixed grinding roller (11) level sets up in grinding organism (101), and with feeding control roller (2) correspond, fixed grinding roller (11) both ends are all passed through fixed bearing mount pad (12) with the both sides inner wall of grinding organism (101) rotates and is connected, fixed bearing mount pad (12) are fixed in grind organism (101) inner wall.

6. A multi-roll grinding mill according to claim 5, characterized in that:

the movable roller unit includes: at least two movable rollers (6) and two groups of swing bearing mounting seats (5) corresponding to the two movable rollers (6) respectively;

the two movable rollers (6) are arranged in parallel to the fixed grinding roller (11), and the two movable rollers (6) are respectively arranged close to the feeding control roller (2) and the fixed grinding roller (11);

two ends of each movable roller (6) are respectively and rotatably connected with the inner walls of two sides of the grinding machine body (101) through the swinging bearing mounting seat (5); each group of oscillating bearing mounting seats (5) is hinged with the inner wall of the grinding machine body (101) through a connecting piece (15).

7. A multi-roll grinding mill according to claim 6, characterized in that:

a material bearing unit (7) is arranged between the grinding roller module and the bottom of the grinding machine body (101), one side of the material bearing unit (7) is installed in the grinding machine body (101) through a supporting piece, a distance is arranged between the material bearing unit (7) and the grinding roller module, and the specification of the material bearing unit (7) is matched with that of the grinding roller module;

the grinding roller module further comprises: an auxiliary doctor blade module (10); the auxiliary scraper module (10) is respectively arranged close to one side of the bottom of the movable roller unit and one side of the bottom of the fixed roller unit.

8. A multi-roll grinding mill according to claim 7, characterized in that:

the number of the clamping units (13) is at least two, and each clamping unit (13) comprises at least two clamping mechanisms;

each group of the clamping units (13) is respectively connected between the adjacent movable roller (6) and the fixed grinding roller (11);

or the like, or, alternatively,

two groups of clamping units (13) are respectively connected between the adjacent movable rollers (6) and the fixed grinding roller (11) and between the adjacent two movable rollers (6);

the two clamping mechanisms of each group of clamping units (13) are respectively arranged corresponding to the two ends of the movable roller (6);

when each group of clamping units (13) is respectively connected between the adjacent movable roller (6) and the fixed grinding roller (11), two ends of the two clamping mechanisms are respectively connected with the connecting piece (15) and the fixed bearing mounting seat (12) on two sides of the clamping mechanism;

the fixed grinding roller (11), the feeding control roller (2) and the movable roller (6) are arranged in a mode comprising: z-shaped arrangement, straight arrangement and V-shaped arrangement.

9. A control method for use in a multi-roll mill of any one of claims 1~8 comprising the steps of:

acquiring the material quality of a material to be ground and the grinding roller rotating speed of the grinding roller module;

setting rotation speed and spacing control parameters based on the material quality and the rotation speed of the grinding roller;

and calling the feeding roller interval and rotating speed control unit to operate the feeding control rollers according to the rotating speed and the interval control parameters.

10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the control method as claimed in claim 9.

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