CN114146780A

CN114146780A - Roller mechanism

Info

Publication number: CN114146780A
Application number: CN202111460908.7A
Authority: CN
Inventors: 郭通; 付小东; 石伟栋; 曾昭和; 吴利平; 刘一泽; 钟铭; 张捷; 周建松; 刘德玺; 张泽洋; 杨敏; 丁炜; 申杰; 赖宁经; 黄明明
Original assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Current assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-03-08
Anticipated expiration: 2041-11-30
Also published as: CN114146780B

Abstract

The invention discloses a roller mechanism, which comprises a power assembly, a driving assembly, a screening assembly matched with a first trigger assembly and a crushing assembly matched with a second trigger assembly, wherein the driving assembly is arranged on the driving assembly; and the spiral blanking sector is arranged between the screening component and the crushing component. The invention has the advantages that the power assembly is controlled by the motor to classify and screen the pulverized coal and the residual coal blocks and carry out crushing treatment after certain coal blocks are accumulated, thereby improving the production quality and the combustion efficiency.

Description

Roller mechanism

Technical Field

The invention relates to the technical field of coal screening, in particular to a roller mechanism.

Background

Coal is a solid combustible mineral formed gradually by ancient plants buried underground and undergoing complex biochemical and physicochemical changes. Coal is known as black gold by people and is industrial food, which is one of main energy sources used in the human world since the eighteenth century, and since the twenty-first century, although the value of coal is not as high as before, coal is one of indispensable energy sources for production and life of human beings at present and in a long time in the future after all, the supply of coal is also related to the stability of the development of the industry of China and the aspect of the whole society, and the problem of the supply safety of coal is also the most important part in the energy safety of China. China has a plurality of thermal power plants, and most of the thermal power plants adopt coal as fuel. However, coal is not directly fed into the furnace for combustion and it is necessary to pulverize the coal first. Thus, the greater the contact area with oxygen during combustion, the more intense the combustion. Therefore, the coal is pulverized and then burnt so as to improve the combustion rate of the coal and avoid the waste of resources. However, the coal treated by the crusher still has partial coal blocks in the pulverized coal at present, which affects the combustion efficiency.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made keeping in mind the above problems occurring in the prior art.

It is therefore an object of the present invention to provide a roller mechanism that enables the sorting and reprocessing of the material.

In order to solve the technical problems, the invention provides the following technical scheme: a roller mechanism comprises a power assembly, a driving shaft, a fixing plate, a shifting column and a ferrule piece, wherein the driving shaft is connected with the top of the motor; the driving assembly comprises a supporting seat, a driving turntable movably connected with the top of the supporting seat, a plurality of groups of triggering columns arranged at the bottom of the driving turntable in a circular array, a bearing turntable fixedly connected with the top of the driving turntable, a first triggering assembly arranged on the outer side of the bearing turntable, and two groups of second triggering assemblies arranged on the inner side of the bearing turntable in a circular array; the screening assembly is matched with the first trigger assembly, and the crushing assembly is matched with the second trigger assembly; and the spiral blanking sector is arranged between the screening component and the crushing component.

As a preferable aspect of the roller mechanism of the present invention, wherein: the ferrule piece comprises a allowance opening arranged on one side of the toggle column and a trigger column outlet arranged on the other side of the toggle column; the length of the toggle column is the same as the radius of the ferrule piece; the triggering columns are arranged into five groups and divided into a first column, a second column, a third column, a fourth column and a fifth column; when the ferrule piece rotates, the outer side of the ferrule piece is contacted with two ends of any three groups of triggering columns.

As a preferable aspect of the roller mechanism of the present invention, wherein: the first trigger assembly comprises a lifting edge arranged at one end of the first trigger assembly, a horizontal edge communicated with the lifting edge and a descending edge communicated with the horizontal edge; the length of the first trigger assembly is set to be an arc-shaped block, and the arc length of the first trigger assembly is two fifths of the arc length of the bearing rotary table.

As a preferable aspect of the roller mechanism of the present invention, wherein: the second trigger assembly is arranged into an arc-shaped block and comprises a lifting edge arranged at the top of the second trigger assembly, a vertical edge arranged on the side surface of the second trigger assembly and communicated with the lifting edge, and a cushion pad arranged on one side of the vertical edge; the height of the second trigger component is larger than that of the first trigger component.

As a preferable aspect of the roller mechanism of the present invention, wherein: the screening subassembly includes the feeding case, set up triangle-shaped selection by winnowing unloading spare in the feeding incasement, with the first storage case of triangle-shaped selection by winnowing unloading spare intercommunication, the slope sets up fan on the feeding case, the first circular telegram piece of being connected with the fan, set up in the power of first storage case top to and the conducting block of being connected with the power.

As a preferable aspect of the roller mechanism of the present invention, wherein: the triangular winnowing blanking part comprises an inclined winnowing plate, a hollow blanking cavity arranged below the inclined winnowing plate, an arc blanking cavity arranged below the hollow blanking port, a switch plate arranged above the middle part of the inclined winnowing plate, a first linear limiting plate clamped with the switch plate, a first adjusting part connected with one side of the switch plate and matched with the first trigger assembly, an extension frame connected with the switch plate, and a second electrifying block connected with the bottom of the extension frame; a gap is arranged between the first electrifying block and the conductive block, and the second electrifying block is arranged in the gap; the first electrifying block, the conductive block and the second electrifying block are all made of conductive materials; the highest point of the spiral blanking sector is connected with the bottom end of the oblique winnowing plate.

As a preferable aspect of the roller mechanism of the present invention, wherein: the crushing assembly comprises a second adjusting part matched with the second triggering assembly, an extension plate connected with one side of the second adjusting part, a crushing head connected with the extension plate, a limiting collecting barrel arranged below the crushing head, a crushing sieve plate arranged at the bottom of the limiting collecting barrel, a bearing containing barrel arranged at the bottom of the crushing sieve plate, and a second linear limiting plate arranged at the top of the limiting collecting barrel and clamped with the extension plate; the inner diameter of the limiting collecting barrel is the same as the diameter of the crushing head; the crushing sieve plate and the inclined winnowing plate are provided with sieve holes.

As a preferable aspect of the roller mechanism of the present invention, wherein: the first adjusting piece is the same as the second adjusting piece in structure, and comprises a power plate and a roller arranged at the bottom of the power plate.

As a preferable aspect of the roller mechanism of the present invention, wherein: the limiting collecting barrel is connected with the lowest point of the spiral blanking sector.

As a preferable aspect of the roller mechanism of the present invention, wherein: the spiral blanking sector comprises protection plates arranged on two sides of the spiral blanking sector.

The invention has the beneficial effects that: the invention classifies and screens the coal dust and the residual coal blocks by controlling the power assembly through the motor, and carries out crushing treatment after certain coal blocks are accumulated, thereby improving the production quality and the combustion efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is an overall configuration diagram of the roller mechanism.

Fig. 2 is another perspective view of the overall structure of the roller mechanism.

Fig. 3 is a structural view of a power assembly and a driving assembly of the roller mechanism.

Fig. 4 is a schematic view of the power assembly and the driving assembly of the roller mechanism.

Figure 5 is a view of the screening assembly of the roller mechanism.

Fig. 6 is an internal structure view of a triangular air separation blanking part of the roller mechanism.

Figure 7 is a schematic view of a shredder assembly of the roller mechanism.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 7, a first embodiment of the present invention provides a roller mechanism capable of separating, screening and reprocessing materials.

Specifically, the power assembly 100 comprises a motor 101, a driving shaft 102 connected with the top of the motor 101, a fixing plate 103 arranged in the middle of the driving shaft 102, a toggle column 104 arranged on the top of the driving shaft 102, and a collar member 105 connected with two ends of the fixing plate 103;

the driving assembly 200 comprises a supporting seat 201, a driving turntable 202 movably connected with the top of the supporting seat 201, a plurality of groups of triggering columns 203 arranged at the bottom of the driving turntable 202 in a circular array, a bearing turntable 204 fixedly connected with the top of the driving turntable 202, a first triggering assembly 205 arranged on the outer side of the bearing turntable 204, and two groups of second triggering assemblies 206 arranged on the inner side of the bearing turntable 204 in a circular array; and the number of the first and second groups,

a screening assembly 300 engaged with said first trigger assembly 205, a size reduction assembly 400 engaged with said second trigger assembly 206; a spiral discharge sector M disposed between the screening assembly 300 and the size reduction assembly 400.

Further, the ferrule assembly 105 includes a allowance opening 105a disposed on one side of the toggle column 104, and a trigger column outlet 105b disposed on the other side of the toggle column 104; the length of the toggle column 104 is the same as the radius of the ferrule piece 105; the trigger columns 203 are arranged into five groups, namely a first column, a second column, a third column, a fourth column and a fifth column, and the angles at intervals between each group are the same; the outer side of the ferrule assembly 105 contacts the two ends of any three sets of the trigger posts 203 as it rotates.

It should be noted that, referring to fig. 4, when the motor 101 is started, the ferrule member 105, the toggle post 104 and the fixing plate 103 all rotate along with the driving shaft 102. The trigger posts 203 disposed on the sides of the ferrule piece 105 are designated as first and third posts, with the second post disposed intermediate the first and third posts. The toggle column 104 toggles the first column in the rotation to enable the driving turntable 202 to rotate for a distance relative to the supporting seat 201, so that the bearing turntable 204 fixedly connected with the driving turntable 202 rotates for a fifth angle, the collar piece 105 and the trigger column 203 are in contact limiting in the process, and the rotating distance of the bearing turntable 204 is prevented from changing due to inertia. The trigger post outlet 105b is provided to facilitate the pulling of the second post off the inside of the ferrule part 105, and the retaining plate 103 is provided to stabilize the ferrule part 105. The bearing turntable 204 is controlled by the power assembly 100 to realize accurate intermittent rotation.

Further, the first trigger assembly 205 includes a lifting edge 205a disposed at one end thereof, a horizontal edge 205b in communication with the lifting edge 205a, and a descending edge 205c in communication with the horizontal edge 205 b.

Preferably, the length of the first trigger assembly 205 is set to be an arc-shaped block, and the arc length thereof is two fifths of the arc length of the carrying turntable 204. When the bearing turntable 204 rotates for the first time, the first adjusting piece 302f slowly rises under the action of the lifting edge 205a and stays in the middle of the horizontal edge 205b for a period of time, the process is embodied in that the switch plate 302d rises along a straight line under the action of the first adjusting piece 302f and keeps the highest distance unchanged for a period of time, the second electrifying block 302h is separated from the conducting block 307, the fan 304 is powered off, the situation that the environment is polluted by coal dust under the action of the fan 304 after the sealing state of the feeding box 301 is released due to the opening of the switch plate 302d is avoided, and energy is saved. After the switch plate 302d is lifted, the coal blocks accumulated on the inclined air separation plate 302a fall into the spiral blanking sector M along the length direction of the inclined air separation plate 302a, and finally enter the crushing assembly 400. When the carrying turntable 204 rotates again, the first adjusting member 302f will slowly descend along the descending edge 205c and stay on the surface of the carrying turntable 204, and close the feeding box 301 again, so that the fan 304 is powered on. After the bearing turntable 204 rotates three times again, the bearing turntable can contact the tail end of the lifting edge 205a, and the raw materials are subjected to air separation and screening in a longer time, so that coal blocks begin to accumulate.

Further, the second trigger assembly 206 is provided as an arc-shaped block, which includes a raised edge 206a disposed at the top thereof, a vertical edge 206b disposed at the side thereof and communicating with the raised edge 206a, and a cushion 206c disposed at one side of the vertical edge 206 b; the second trigger component 206 is taller than the first trigger component 205.

It should be noted that the second adjusting member 401 will be continuously raised under the action of the raised edge 206a under the rotation of the bearing turntable 204, and form a certain height difference with the bearing turntable 204 under the action of the vertical edge 206b, and when the second adjusting member 401 passes through the vertical edge 206b, it will vertically fall onto the cushion 206c due to its own weight, so as to reduce the impact force and prolong the service life of the bearing turntable 204; this process is embodied in that the second adjusting member 401 lifts the crushing head 403 through the extension plate 402 and leaves time for the coal to enter the limiting collecting barrel 404, then the crushing head 403 falls vertically to crush the coal in the limiting collecting barrel 404, and the crushed coal falls into the bearing receiving barrel 406 through the screening holes of the crushing screening plate 405 under the vibration of the crushing head 403 hitting the crushing screening plate 405. The length of the crushing head 403 is set so that the crushing head cannot be separated from the limiting collecting barrel 404 in the lifting process, and the stability of the device is improved. Two sets of second trigger assemblies 206 are arranged, so that the crushing can be carried out twice in the process of once accumulating and discharging, the production efficiency is improved, and the coal briquette overstocking is avoided.

Further, the screening module 300 includes a feeding box 301, a triangular air separation blanking member 302 disposed in the feeding box 301, a storage box 303 communicated with the triangular air separation blanking member 302, a fan 304 obliquely disposed on the feeding box 301, a first power-on block 305 connected with the fan 304, a power source 306 disposed above the storage box 303, and a conductive block 307 connected with the power source 306.

Further, the triangular air separation blanking member 302 includes an inclined air separation plate 302a, a hollow blanking cavity 302b disposed below the inclined air separation plate 302a, an arc blanking cavity 302c disposed below the hollow blanking port 302b, a switch plate 302d disposed above the middle of the inclined air separation plate 302a, a first linear limiting plate 302e engaged with the switch plate 302d, a first adjusting member 302f connected to one side of the switch plate 302d and engaged with the first trigger assembly 205, an extension frame 302g connected to the switch plate 302d, and a second electrifying block 302h connected to the bottom of the extension frame 302 g; a gap is arranged between the first electrifying block 305 and the conductive block 307, and the second electrifying block 302h is arranged in the gap; the first conducting block 305, the conducting block 307 and the second conducting block 302h are all made of conducting materials; the highest point of the spiral blanking sector M is connected with the bottom end of the inclined winnowing plate 302 a. The inclined air separation plate 302a is arranged in an inclined shape, under the action of the fan 304, the coal powder enters the hollow blanking cavity 302b through the material sieving holes, and the coal blocks are accumulated on the inclined air separation plate 302a and are sealed by the switch plate 302 d. The pulverized coal entering the hollow blanking chamber 302b falls into the arc-shaped blanking chamber 302c and is finally accommodated in the storage bin 303

Further, the crushing assembly 400 comprises a second adjusting member 401 matched with the second trigger assembly 206, an extension plate 402 connected with one side of the second adjusting member 401, a crushing head 403 connected with the extension plate 402, a limiting collecting barrel 404 arranged below the crushing head 403, a crushing sieve plate 405 arranged at the bottom of the limiting collecting barrel 404, a bearing receiving barrel 406 arranged at the bottom of the crushing sieve plate 405, and a second linear limiting plate 407 arranged at the top of the limiting collecting barrel 404 and clamped with the extension plate 402; the inner diameter of the limiting collecting barrel 404 is the same as the diameter of the grinding head 403; the crushing sieve plate 405 and the inclined winnowing plate 302a are provided with sieve holes. The side of the limiting collecting barrel 404 is provided with an oblique groove N connected with the spiral blanking sector M.

Preferably, set up first straight line limiting plate 302e and second straight line limiting plate 407 and all carry on spacingly to the regulating part, make both all remove along the vertical direction, prevent that it from breaking away from, influence normal work.

Further, the first adjusting member 302f has the same structure as the second adjusting member 401, and the first adjusting member 302f includes a power plate 302f-1 and a roller 302f-2 disposed at the bottom of the power plate 302 f-1. The width of roller 302f-2 is less than the width of first trigger assembly 205 and second trigger assembly 206.

Further, the limiting collecting barrel 404 is connected with the lowest point of the spiral blanking sector M. The spiral blanking sector M comprises protection plates M1 arranged on two sides of the spiral blanking sector M.

When the feeding box is used, a worker only needs to start the motor 101 and feed materials through the feeding box 301. Raw materials enter the feeding box 301 and fall on the inclined winnowing plate 302a, the fan 304 screens the raw materials, coal powder enters the storage box 303 through a material sieving hole, coal blocks are stored at the switch plate 302d and enter the spiral blanking sector M along with the opening and closing of the switch plate 302 to fall into the crushing assembly 400, and the coal blocks fall into the bearing storage barrel 406 after being crushed by the crushing assembly 400.

In conclusion, the power assembly is controlled by the motor to classify and screen the pulverized coal and the residual coal blocks and carry out crushing treatment after certain coal blocks are accumulated, so that the production quality and the combustion efficiency are improved.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. A roller mechanism is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the power assembly (100) comprises a motor (101), a driving shaft (102) connected with the top of the motor (101), a fixing plate (103) arranged in the middle of the driving shaft (102), a toggle column (104) arranged at the top of the driving shaft (102), and a ferrule piece (105) connected with two ends of the fixing plate (103);

the driving assembly (200) comprises a supporting seat (201), a driving turntable (202) movably connected with the top of the supporting seat (201), a plurality of groups of triggering columns (203) which are arranged at the bottom of the driving turntable (202) in a circular array, a bearing turntable (204) fixedly connected with the top of the driving turntable (202), a first triggering assembly (205) arranged on the outer side of the bearing turntable (204), and two groups of second triggering assemblies (206) which are arranged on the inner side of the bearing turntable (204) in a circular array; and the number of the first and second groups,

a screening assembly (300) cooperating with the first trigger assembly (205), a size reduction assembly (400) cooperating with the second trigger assembly (206); a spiral discharge sector (M) arranged between the screening assembly (300) and the shredding assembly (400).

2. The roller mechanism of claim 1, wherein: the ferrule piece (105) comprises a surplus opening (105a) arranged on one side of the toggle column (104) and a trigger column outlet (105b) arranged on the other side of the toggle column (104); the length of the toggle column (104) is the same as the radius of the ferrule piece (105); the trigger columns (203) are arranged into five groups which are divided into a first column, a second column, a third column, a fourth column and a fifth column; when the ferrule piece (105) rotates, the outer side of the ferrule piece is in contact with two ends of any three groups of the trigger columns (203).

3. The roller mechanism of claim 2, wherein: the first trigger component (205) comprises a lifting edge (205a) arranged at one end of the first trigger component, a horizontal edge (205b) communicated with the lifting edge (205a), and a descending edge (205c) communicated with the horizontal edge (205 b); the first trigger assembly (205) is arranged in an arc-shaped block in length.

4. The roller mechanism of claim 3, wherein: the second trigger component (206) is arranged into an arc-shaped block and comprises a raised edge (206a) arranged at the top of the second trigger component, a vertical edge (206b) arranged at the side of the second trigger component and communicated with the raised edge (206a), and a buffer cushion (206c) arranged at one side of the vertical edge (206 b); the second trigger assembly (206) height is greater than the first trigger assembly (205) height.

5. The roller mechanism of claim 4, wherein: screening subassembly (300) including feeding case (301), set up in triangle-shaped selection by winnowing unloading piece (302) in feeding case (301), with storage case (303) of triangle-shaped selection by winnowing unloading piece (302) intercommunication, slope set up in fan (304) on feeding case (301), with first circular telegram piece (305) that fan (304) are connected, set up in power (306) of storage case (303) top, and with conducting block (307) that power (306) are connected.

6. The roller mechanism of claim 5, wherein: the triangular air separation blanking part (302) comprises an inclined air separation plate (302a), a hollow blanking cavity (302b) arranged below the inclined air separation plate (302a), an arc blanking cavity (302c) arranged below the hollow blanking port (302b), a switch plate (302d) arranged above the middle part of the inclined air separation plate (302a), a first linear limiting plate (302e) clamped with the switch plate (302d), a first adjusting part (302f) connected with one side of the switch plate (302d) and matched with the first trigger component (205), an extension frame (302g) connected with the switch plate (302d), and a second electrifying block (302h) connected with the bottom of the extension frame (302 g); a gap is arranged between the first electrifying block (305) and the conductive block (307), and the second electrifying block (302h) is arranged in the gap; the first energizing block (305), the conductive block (307), and the second energizing block (302h) are all conductive materials; the highest point of the spiral blanking sector (M) is connected with the bottom end of the inclined winnowing plate (302 a).

7. The roller mechanism of claim 6, wherein: the crushing assembly (400) comprises a second adjusting element (401) matched with the second trigger assembly (206), an extension plate (402) connected with one side of the second adjusting element (401), a crushing head (403) connected with the extension plate (402), a limiting collecting barrel (404) arranged below the crushing head (403), a crushing screening plate (405) arranged at the bottom of the limiting collecting barrel (404), a bearing and containing barrel (406) arranged at the bottom of the crushing screening plate (405), and a second linear limiting plate (407) arranged at the top of the limiting collecting barrel (404) and clamped with the extension plate (402); the inner diameter of the limiting collecting barrel (404) is the same as the diameter of the grinding head (403); the crushing sieve plate (405) and the inclined winnowing plate (302a) are provided with sieve holes.

8. The roller mechanism of claim 7, wherein: the first adjusting piece (302f) is identical to the second adjusting piece (401) in structure, and the first adjusting piece (302f) comprises a power plate (302f-1) and a roller (302f-2) arranged at the bottom of the power plate (302 f-1).

9. The roller mechanism of claim 8, wherein: the limiting collecting barrel (404) is connected with the lowest point of the spiral blanking sector (M).

10. The roller mechanism of claim 9, wherein: the spiral blanking fan (M) comprises protection plates (M1) arranged on two sides of the spiral blanking fan.