CN113458505A

CN113458505A - Roller scraping equipment

Info

Publication number: CN113458505A
Application number: CN202111019335.4A
Authority: CN
Inventors: 李俊
Original assignee: Jiangsu Mingpeng Equipment Co ltd
Current assignee: Jiangsu Mingpeng Equipment Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2021-10-01
Anticipated expiration: 2041-09-01
Also published as: CN113458505B

Abstract

The invention discloses roller scraping equipment which comprises a shell, wherein a grinding cavity with an upward opening is arranged in the shell, a driving cavity is arranged in the shell, a first motor is fixedly arranged on the rear side surface of the shell, and a main shaft extending forwards is arranged on the front side surface of the first motor; when the roller is detected to be seriously worn, the automatic scraping device can automatically scrape two rollers, so that the service life of the rollers can be greatly prolonged; after the grinding work of the roller is finished, the position of the roller can be automatically adjusted to compensate the abrasion loss and the scraping loss; after the position of the roller is adjusted, the position of the scraping mechanism can be automatically adjusted, so that the scraping mechanism in the invention can still take effect after the position of the roller is adjusted, and the roller can be conveniently refurbished and scraped for multiple times.

Description

Roller scraping equipment

Technical Field

The invention relates to the technical field of roller scraping, in particular to roller scraping equipment.

Background

Rolls are generally required when grinding of materials is carried out, the rolls can wear toothed protrusions on the surfaces of the rolls when the materials are subjected to such work, and the grinding work can be seriously affected when the protruding parts of the rolls are seriously worn, but no equipment specially used for detecting the wear degree of the rolls exists on the market at present, so that workers are difficult to determine whether the used rolls need to be replaced or repaired, and few equipment for repairing and regrinding the rolls exist on the market at present, so that the service life of the rolls for performing such work is short.

Disclosure of Invention

The object of the present invention is to provide a roller scraping device which overcomes the above-mentioned drawbacks of the prior art.

The roller scraping equipment comprises a shell, wherein a grinding cavity with an upward opening is arranged in the shell, a driving cavity is arranged in the shell, a first motor is fixedly arranged on the rear side surface of the shell, a main shaft which extends forwards and is rotatably connected into the front side surface of the grinding cavity is arranged on the front side surface of the first motor, a first threaded block is connected onto the left side surface of the driving cavity in a front-back sliding mode, a connecting cavity is arranged in the shell, a second motor is fixedly arranged on the left side surface of the connecting cavity, a first threaded shaft which penetrates into the driving cavity and is in threaded connection with the first threaded block is arranged on the right side surface of the second motor, a second threaded block is connected into the front side surface of the grinding cavity in a sliding mode, a second threaded shaft which penetrates into the grinding cavity and is in threaded connection with the second threaded block is rotatably connected into the left side surface of the connecting cavity, the first threaded shaft is connected with the second threaded shaft through a first synchronous belt, the front side surface of the first threaded block is rotatably connected with a driven shaft which penetrates through the grinding cavity and is rotatably connected with the rear side surface of the second threaded block, the front side surface of the first threaded block is rotatably connected with a connecting shaft, the connecting shaft is connected with the driven shaft through gear engagement, the connecting shaft is connected with the main shaft through a second synchronous belt, a tightening mechanism which can enable the second synchronous belt to keep a tightened state is arranged in the driving cavity, a first roller is arranged on the main shaft, a second roller is arranged on the driven shaft, the first roller and the second roller are both positioned in the grinding cavity, a slide way is arranged in the right side surface of the grinding cavity, and a detection block which can extend into the grinding cavity is connected in a vertical sliding manner in the slide way, the detection mechanism is characterized in that the detection block is internally provided with a detection mechanism capable of detecting the wear degree of the first roller and is connected with the main shaft through a connecting mechanism, the connecting mechanism can control whether the detection mechanism works or not, the rear side surface of the driving cavity is slidably connected with a first bearing block, the front side surface of the crushing cavity is slidably connected with a second bearing block, the first bearing block and the second bearing block are provided with scraping mechanisms, and the scraping mechanisms can automatically take effect according to the detection result of the detection mechanism so as to scrape the second roller and the first roller.

Further technical scheme, the mechanism of tightening is including locating drive chamber leading flank's fixed block, the downside of fixed block has a spring block through a spring coupling, the leading flank internal rotation of a spring block is connected with the axis of rotation No. one, No. two hold-in ranges will simultaneously the main shaft even the axle with an axis of rotation connection.

Further technical scheme, detection mechanism is including locating sliding chamber in the detection piece, the sliding chamber is equipped with the perforating hole that link up downwards in, and sliding chamber intracavity sliding connection has the detection contact, the detection contact can extend to detect the downside of piece, and be equipped with No. one the stopper on the anchor ring of detection contact and make the detection contact can not break away from completely sliding chamber, be equipped with a sensor in sliding chamber's the right flank.

A further technical scheme, coupling mechanism including rotate connect in the outer ring piece of main shaft ring, be equipped with two butt grooves of equipartition in the interior anchor ring of ring piece, be equipped with in the anchor ring of main shaft with the spring groove that the butt groove corresponds, the interior anchor ring in spring groove has the butt piece through No. two spring coupling, the butt piece can move extremely in the butt inslot, be equipped with the rack groove that the opening is backward in the detection piece, the rack has set firmly on the wall in rack groove, the trailing flank internal rotation in drive chamber is connected with and runs through to pulverize the intracavity, and extend to No. two axis of rotation in the rack groove, No. two be equipped with in the axis of rotation with a gear of rack toothing, and No. two axis of rotation through No. three hold-in range with the ring piece is connected.

The scraping mechanism comprises a third motor arranged on the front side surface of the first bearing block, the front side surface of the third motor is provided with a third threaded shaft which penetrates into the grinding cavity and is rotatably connected with the second bearing block, the front side surface of the first bearing block is connected with a third threaded block in a sliding manner, the front side surface of the first bearing block is fixedly provided with a fourth motor, the right side surface of the fourth motor is provided with a fourth threaded shaft which is in threaded connection with the third threaded block, the rear side surface of the second bearing block is fixedly provided with a bearing plate, the rear side surface of the second bearing block is connected with a fourth threaded block in a sliding manner, the right side surface of the bearing plate is rotatably connected with a fifth threaded shaft which is in threaded connection with the fourth threaded block, and the fifth threaded shaft is connected with the fourth motor through a fourth synchronous belt, and No. three screw block with it is connected with No. six screw shafts to rotate between the No. four screw blocks, No. two fixed blocks have set firmly on the leading flank of a carrier block, there is No. two spring blocks through No. three spring coupling on the side of No. two fixed blocks, the leading flank internal rotation of No. two spring blocks is connected with No. three axis of rotation, No. three axis of rotation No. six screw shafts with connect through No. five hold-in range between the No. three screw shafts, No. three screw shafts with respectively be equipped with not less one spout in the anchor ring of No. six screw shafts, No. three screw shafts with be connected with a cutting block on the No. six screw shafts separately.

A threaded hole which is communicated with the six threaded shafts and the three threaded shafts in a left-right mode and is in threaded connection with the three threaded shafts is arranged in the cutting block, an annular groove is arranged in an annular surface of the threaded hole, a bevel gear is connected to the side surface of the annular groove in a rotating mode, the bevel gear is located on an outer ring of the three threaded shafts and an outer ring of the six threaded shafts, a sliding block extending into the sliding groove is fixedly arranged on an inner annular surface of the bevel gear, a transfer groove is arranged on the right side surface of the annular groove, a pneumatic cavity is arranged in the cutting block, a four rotating shaft extending upwards into the pneumatic cavity is rotatably connected to the lower side surface of the transfer groove, a second bevel gear meshed with the first bevel gear is arranged on the four rotating shaft, a disc is arranged at the upper end of the four rotating shaft, and a protruding block is fixedly arranged on the upper side surface of the disc, pneumatic intracavity left and right sliding connection has a piston and No. two pistons, the left surface of a piston articulate have with the protrusion piece rotates the connecting rod of connecting, be equipped with the cutting groove that link up from top to bottom in the cutting piece, the right flank of No. two pistons has set firmly run through to cut the connecting block in the groove, the right flank of connecting block has set firmly and extends to the sword of scraping of cutting piece upside.

According to the further technical scheme, a sliding rod is arranged in the cutting block, so that the cutting block cannot rotate.

Further technical scheme, be equipped with in the downside in drive chamber and reject an electro-magnet of carrier block, be equipped with in the downside in crushing chamber and reject No. two electro-magnets of No. two carrier blocks.

Further technical scheme, be equipped with the restriction groove in the right flank of slide, sliding connection has No. two stoppers in the restriction groove, No. two stoppers pass through No. five spring coupling in the right flank of restriction groove, and be equipped with in the right flank of restriction groove and reject No. three electro-magnets of No. two stoppers.

The invention has the beneficial effects that: after the grinding and crushing work is finished each time, the invention can detect two rollers in real time so as to ensure the quality of products in each work;

when the roller is detected to be seriously worn, the automatic scraping device can automatically scrape two rollers, so that the service life of the rollers can be greatly prolonged;

after the grinding work of the roller is finished, the position of the roller can be automatically adjusted to compensate the abrasion loss and the scraping loss;

after the position of the roller is adjusted, the position of the scraping mechanism can be automatically adjusted, so that the scraping mechanism in the invention can still take effect after the position of the roller is adjusted, and the roller can be conveniently refurbished and scraped for multiple times.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic diagram of the structure of FIG. 2 at the detection block;

FIG. 4 is a schematic view of the structure at the detection mechanism of FIG. 3;

FIG. 5 is a schematic view of the structure A-A of FIG. 2;

FIG. 6 is a schematic diagram of the structure of B-B in FIG. 5;

FIG. 7 is a schematic view of the structure of FIG. 5 at the spindle;

FIG. 8 is a schematic view of the cutting block of FIG. 5;

fig. 9 is a schematic diagram of the structure of C-C in fig. 5.

Detailed Description

For purposes of making the objects and advantages of the present invention more apparent, the following detailed description of the invention, taken in conjunction with the examples, should be understood that the following text is only intended to describe one roll scraping apparatus or several specific embodiments of the invention, and not to strictly limit the scope of the invention as specifically claimed, as used herein, the terms upper, lower, left and right are not limited to strict geometric definitions thereof, but rather include tolerances for machining or human error rationality and inconsistency, the specific features of which are set forth in detail below:

referring to fig. 1 to 9, a roll scraping apparatus according to an embodiment of the present invention includes a housing 11, a grinding chamber 12 having an upward opening is provided in the housing 11, a driving chamber 13 is provided in the housing 11, a first motor 14 is fixedly provided on a rear side surface of the housing 11, a main shaft 15 extending forward and rotatably connected to a front side surface of the grinding chamber 12 is provided on a front side surface of the first motor 14, a first screw block 16 is slidably connected to a left side surface of the driving chamber 13 in a front-rear direction, a connecting chamber 17 is provided in the housing 11, a second motor 18 is fixedly provided on a left side surface of the connecting chamber 17, a first screw shaft 19 penetrating into the driving chamber 13 and threadedly connected to the first screw block 16 is provided on a right side surface of the second motor 18, a second screw block is slidably connected to a front side surface of the grinding chamber 12, a left side surface of the connecting chamber 17 is rotatably connected to the grinding chamber 12, a second threaded shaft in threaded connection with the second threaded block, the first threaded shaft 19 and the second threaded shaft are connected through a first synchronous belt 21, the front side surface of the first threaded block 16 is rotatably connected with a driven shaft 20 which penetrates through the grinding cavity 12 and is rotatably connected with the rear side surface of the second threaded block, the front side surface of the first threaded block 16 is rotatably connected with a connecting shaft 75, the connecting shaft 75 and the driven shaft 20 are connected through gear engagement, the connecting shaft 75 and the main shaft 15 are connected through a second synchronous belt 22, a tightening mechanism 101 capable of keeping the second synchronous belt 22 in a tightened state is arranged in the driving cavity 13, a first roller 25 is arranged on the main shaft 15, a second roller 26 is arranged on the driven shaft 20, and the first roller 25 and the second roller 26 are both positioned in the grinding cavity 12, a slideway 23 is arranged in the right side surface of the grinding cavity 12, a detection block 24 capable of extending into the grinding cavity 12 is connected in the slideway 23 in a vertical sliding manner, a detection mechanism 102 capable of detecting the wear degree of the first roller 25 is arranged in the detection block 24, the detection block 24 is connected with the spindle 15 through a connection mechanism 103, the connection mechanism 103 can control whether the detection mechanism 102 works or not, a first bearing block 27 is connected on the rear side surface of the driving cavity 13 in a sliding manner, a second bearing block 28 is connected on the front side surface of the grinding cavity 12 in a sliding manner, scraping mechanisms are arranged on the first bearing block 27 and the second bearing block 28, and the scraping mechanisms can automatically take effect according to the detection result of the detection mechanism 102 so as to scrape the second roller 26 and the first roller 25.

Advantageously or exemplarily, the tightening mechanism 101 includes a first fixed block 29 disposed at a front side of the driving chamber 13, a first spring block 30 is connected to a lower side of the first fixed block 29 through a first spring, a first rotating shaft 31 is rotatably connected to a front side of the first spring block 30, and the second synchronous belt 22 simultaneously connects the main shaft 15, the connecting shaft 75 and the first rotating shaft 31.

Advantageously or exemplarily, the detection mechanism 102 includes a sliding cavity 32 disposed in the detection block 24, a through hole penetrating downwards is disposed in the sliding cavity 32, a detection contact 33 is slidably connected in the sliding cavity 32, the detection contact 33 can extend to the lower side of the detection block 24, a first limit block is disposed on an annular surface of the detection contact 33 so that the detection contact 33 does not completely separate from the sliding cavity 32, and a first sensor 80 is disposed in a right side surface of the sliding cavity 32.

Advantageously or exemplarily, said connection means 103 comprise a ring block 34 rotatably connected outside the ring surface of said main shaft 15, two abutting grooves 35 are uniformly distributed in the inner ring surface of the ring block 34, a spring groove 36 corresponding to the abutting groove 35 is arranged in the ring surface of the main shaft 15, the inner ring surface of the spring groove 36 is connected with an abutting block 37 through a second spring, the abutting block 37 can move into the abutting groove 35, a rack groove 38 with a backward opening is arranged in the detection block 24, a rack 39 is fixedly arranged on the wall surface of the rack groove 38, the rear side surface of the driving cavity 13 is rotatably connected with a gear box which penetrates into the crushing cavity 12, and a second rotary shaft 40 extending into the rack groove 38, the second rotary shaft 40 being provided with a first pinion engaged with the rack 39, and the second rotating shaft 40 is connected to the ring block 34 through a third timing belt 41.

Advantageously or exemplarily, the scraping mechanism comprises a third motor 42 arranged on the front side surface of the first bearing block 27, the front side surface of the third motor 42 is provided with a third threaded shaft 43 penetrating into the grinding chamber 12 and rotatably connected to the second bearing block 28, the front side surface of the first bearing block 27 is slidably connected with a third threaded block 44, the front side surface of the first bearing block 27 is fixedly provided with a fourth motor 45, the right side surface of the fourth motor 45 is provided with a fourth threaded shaft 46 in threaded connection with the third threaded block 44, the rear side surface of the second bearing block 28 is fixedly provided with a bearing plate 49, the rear side surface of the second bearing block 28 is slidably connected with a fourth threaded block 50, the right side surface of the bearing plate 49 is rotatably connected with a fifth threaded shaft 51 in threaded connection with the fourth threaded block 50, and the fifth threaded shaft 51 is connected with the fourth motor 45 through a fourth synchronous belt 52, a sixth threaded shaft 76 is rotatably connected between the third threaded block 44 and the fourth threaded block 50, a second fixed block is fixedly arranged on the front side surface of the first bearing block 27, a second spring block 47 is connected on the side surface of the second fixed block through a third spring, a third rotating shaft 48 is rotatably connected on the front side surface of the second spring block 47, the third rotating shaft 48, the sixth threaded shaft 76 and the third threaded shaft 43 are connected through a fifth synchronous belt 53, a plurality of sliding grooves 58 are respectively arranged in the ring surfaces of the third threaded shaft 43 and the sixth threaded shaft 76, and a cutting block 54 is respectively connected on the third threaded shaft 43 and the sixth threaded shaft 76.

Beneficially or exemplarily, a threaded hole 55 which is connected with the six-number threaded shaft 76 and the three-number threaded shaft 43 in a left-right penetrating manner is formed in the cutting block 54, an annular groove 56 is formed in an annular surface of the threaded hole 55, a first bevel gear 57 is rotatably connected to a side surface of the annular groove 56, the first bevel gear 57 is located on outer rings of the three-number threaded shaft 43 and the six-number threaded shaft 76, a slide block 60 which extends into the slide groove 58 is fixedly arranged on an inner annular surface of the first bevel gear 57, a transfer groove 61 is formed on a right side surface of the annular groove 56, a pneumatic cavity 62 is formed in the cutting block 54, a fourth rotating shaft 63 which extends upward into the pneumatic cavity 62 is rotatably connected to a lower side surface of the transfer groove 61, a second bevel gear which is engaged with the first bevel gear 57 is arranged on the fourth rotating shaft 63, and a disc 64 is arranged at an upper end of the fourth rotating shaft 63, the side of going up of disc 64 has set firmly the protrusion piece, sliding connection has a piston 65 and No. two pistons 66 about in the pneumatic chamber 62, the left surface of a piston 65 articulate have with the protrusion piece rotates the connecting rod 67 of connecting, be equipped with the cutting groove 68 that link up from top to bottom in the cutting block 54, the right flank of No. two pistons 66 has set firmly run through to connecting block in the cutting groove 68, the right flank of connecting block has set firmly the scraper 69 who extends to the cutting block 54 upside.

Advantageously or exemplarily, a sliding bar is provided in the cutting block 54 so that the cutting block 54 does not rotate.

Advantageously or exemplarily, a first electromagnet 73 capable of repelling the first bearing block 27 is arranged in the lower side of the driving chamber 13, and a second electromagnet 74 capable of repelling the second bearing block 28 is arranged in the lower side of the grinding chamber 12.

Beneficially or exemplarily, a limiting groove 70 is arranged in the right side surface of the slide rail 23, a second limiting block 71 is slidably connected in the limiting groove 70, the second limiting block 71 is connected to the right side surface of the limiting groove 70 through a fifth spring, and a third electromagnet 72 capable of repelling the second limiting block 71 is arranged in the right side surface of the limiting groove 70.

The roll scraping equipment provided by the invention has the following working process:

when the grinding work needs to be carried out, the first motor 14 is electrified, the third electromagnet 72 is automatically electrified when the first motor 14 is electrified, the first motor 14 drives the main shaft 15 to rotate the first roller 25 when being electrified, meanwhile, the main shaft 15 drives the connecting shaft 75 to rotate through the second synchronous belt 22, the driven shaft 20 is driven to rotate in the reverse direction of the second synchronous belt 22, the second roller 26 and the first roller 25 rotate in mutual attachment, at the moment, a worker can put an object to be ground into the grinding cavity 12 and grind the object, in addition, when the rotating speed of the main shaft 15 is increased until the rotating speed is stabilized, the abutting block 37 moves into the abutting groove 35 due to the centrifugal phenomenon, at the moment, the main shaft 15 can drive the second rotary shaft 40 to rotate by driving the third synchronous belt 41, the second rotary shaft 40 rotates, the detection block 24 moves upwards by driving the rack 39, when the first gear is separated from the rack 39, the detection block 24 moves to the upper limit, and at this time, the second limit block 71 is bounced into the slideway 23 and abutted against the lower side surface of the detection block 24, so that the collision between the first gear and the rack 39 is reduced. And at this time the detection block 24 no longer abuts the first roll 25.

When the first motor 14 and the third electromagnet 72 are powered off after the grinding operation is completed, the abutting block 37 retracts into the spring groove 36 in the process that the rotating speed of the main shaft 15 gradually decreases, then the ring block 34 can rotate freely, and because the second limiting block 71 does not receive repulsive force any more, the second limiting block retracts into the limiting groove 70, the detecting block 24 moves downwards and abuts against the upper side face of the first roller 25 which is still in a slow rotation state, the detecting contact 33 can move up and down periodically along with the rotation of the teeth of the outer ring of the first roller 25, when the high point of the movement of the detecting contact 33 can trigger the first sensor 80, the teeth are seriously worn, the tooth height is too low, and the tooth scraping operation is needed.

At the moment, the first motor 14 controls the main shaft 15 to rotate to a fixed angle, then the first electromagnet 73 and the second electromagnet 74 are electrified, the first bearing block 27 and the second bearing block 28 move upwards until the two cutting blocks 54 abut against the lower side surfaces of the first roller 25 and the second roller 26 respectively, then the third motor 42 is electrified, the third motor 42 drives the sixth threaded shaft 76 to move through the fifth synchronous belt 53 when being electrified, at the moment, the two cutting blocks 54 move forwards, the scraping knife 69 moves into the gaps of the teeth, the third threaded shaft 43 and the sixth threaded shaft 76 rotate through driving the sliding block 60 to rotate the first bevel gear 57, the fourth rotating shaft 63 rotates through driving the second bevel gear meshed with the first bevel gear 57 when the first bevel gear 57 rotates, at the moment, the disc 64 drives the protruding block to do circular motion, the first piston 65 is driven through the connecting rod 67 when the protruding block moves, the second piston 66 moves and drives the scraping knife 69 to move back and forth, the scraping knife 69 shakes back and forth while moving forwards in a large direction to better scrape the teeth of the first roller 25 and the second roller 26, the first motor 14 drives the main shaft 15 to move for a certain time when the cutting block 54 moves to the front limit and the scraping knife 69 is disengaged from the teeth, and then the third motor 42 drives the third threaded shaft 43 and the sixth threaded shaft 76 to rotate reversely and enables the cutting block 54 to scrape the other tooth in the process of moving backwards.

When the second roller 26 and the first roller 25 rotate for one circle, the scraping work is finished, at the moment, the first electromagnet 73 and the second electromagnet 74 are powered off, so that the first bearing block 27 and the second bearing block 28 fall and move to the lower limit, then the position adjustment of the second roller 26 is needed to compensate the abrasion and the scraping work, at the moment, the second motor 18 is powered on, the first threaded shaft 19 is driven to rotate when the second motor 18 is powered on, the second threaded shaft is driven to rotate by driving the first synchronous belt 21 when the first threaded shaft 19 rotates, at the moment, the first threaded block 16 and the second threaded block move rightwards, at the moment, the second roller 26 moves rightwards to compensate, the fourth motor 45 is powered on when the second motor 18 is powered on, the fourth threaded shaft 46 is driven to rotate when the fourth threaded shaft 45 rotates, the fifth threaded shaft 51 is driven to rotate through the fourth synchronous belt 52, at this time, the third screw block 44 and the fourth screw block 50 move to the right to ensure the relative position relationship between the axis of the fourth synchronous belt 52 and the axis of the second roller 26, so as to facilitate the next scraping operation, and after the driven shaft 20 and the fourth synchronous belt 52 move, the second spring block 47 and the first spring block 30 are driven to move due to the elastic force of the springs, so that the second synchronous belt 22 and the fifth synchronous belt 53 are always kept in a tightened state.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.

Claims

1. A roll scraping apparatus comprising a housing, characterized in that: a grinding cavity with an upward opening is arranged in the shell, a driving cavity is arranged in the shell, a first motor is fixedly arranged on the rear side surface of the shell, a main shaft which extends forwards and is rotatably connected into the front side surface of the grinding cavity is arranged on the front side surface of the first motor, a first thread block is connected onto the left side surface of the driving cavity in a front-back sliding manner, a connecting cavity is arranged in the shell, a second motor is fixedly arranged on the left side surface of the connecting cavity, a first thread shaft which penetrates into the driving cavity and is in threaded connection with the first thread block is arranged on the right side surface of the second motor, a second thread block is connected into the front side surface of the grinding cavity in a sliding manner, a second thread shaft which penetrates into the grinding cavity and is in threaded connection with the second thread block is rotatably connected into the left side surface of the connecting cavity, and the first thread shaft is connected with the second thread shaft through a first synchronous belt, the front side surface of the first thread block is rotatably connected with a driven shaft which penetrates through the grinding cavity and is rotatably connected with the rear side surface of the second thread block, the front side surface of the first thread block is rotatably connected with a connecting shaft, the connecting shaft is connected with the driven shaft through gear meshing, the connecting shaft is connected with the main shaft through a second synchronous belt, a tightening mechanism which can enable the second synchronous belt to keep a tightened state is arranged in the driving cavity, a first roller is arranged on the main shaft, a second roller is arranged on the driven shaft, the first roller and the second roller are both positioned in the grinding cavity, a slideway is arranged in the right side surface of the grinding cavity, a detection block which can extend into the grinding cavity is connected in a vertical sliding manner in the slideway, and a detection mechanism which can detect the abrasion degree of the first roller is arranged in the detection block, the detection block is connected with the spindle through a connecting mechanism, the connecting mechanism can control whether the detection mechanism works or not, a first bearing block is connected to the rear side face of the driving cavity in a sliding mode, a second bearing block is connected to the front side face of the crushing cavity in a sliding mode, scraping mechanisms are arranged on the first bearing block and the second bearing block, and the scraping mechanisms can automatically take effect according to detection results of the detection mechanism so as to scrape the second roller and the first roller.

2. A roll scraping apparatus as claimed in claim 1, characterized in that: tightening mechanism is including locating drive chamber leading flank's fixed block, the downside of fixed block has a spring block through a spring coupling, the leading flank internal rotation of a spring block is connected with the axis of rotation No. one, No. two the hold-in range will simultaneously the main shaft even the axle with an axis of rotation connection.

3. A roll scraping apparatus as claimed in claim 1, characterized in that: detection mechanism is including locating sliding chamber in the detection piece, the sliding chamber is equipped with the perforating hole that link up downwards in, and sliding chamber intracavity sliding connection has the detection contact, the detection contact can extend to detect the downside of piece, and be equipped with a stopper on the anchor ring of detection contact and make the detection contact can not break away from completely sliding chamber, sliding chamber's right flank is equipped with a sensor No. one.

4. A roll scraping apparatus as claimed in claim 1, characterized in that: coupling mechanism including rotate connect in the outer ring piece of main shaft ring, be equipped with two butt grooves of equipartition in the interior anchor ring of ring piece, be equipped with in the anchor ring of main shaft with the spring groove that the butt groove corresponds, the interior anchor ring in spring groove has the butt piece through No. two spring coupling, the butt piece can move extremely the butt inslot, be equipped with the rack groove that the opening is backward in the detection piece, the rack has set firmly on the wall in rack groove, the trailing flank internal rotation in drive chamber is connected with and runs through to pulverize the intracavity, and extend to No. two axis of rotation in the rack groove, No. two be equipped with in the axis of rotation with a gear of rack toothing, and No. two axis of rotation through No. three hold-in ranges with the ring piece is connected.

5. A roll scraping apparatus as claimed in claim 1, characterized in that: the scraping mechanism comprises a third motor arranged on the front side surface of the first bearing block, the front side surface of the third motor is provided with a third threaded shaft which penetrates through the grinding cavity and is connected with the second bearing block in a rotating manner, the front side surface of the first bearing block is connected with a third threaded block in a sliding manner, a fourth motor is fixedly arranged on the front side surface of the first bearing block, the right side surface of the fourth motor is provided with a fourth threaded shaft which is in threaded connection with the third threaded block, the rear side surface of the second bearing block is fixedly provided with a bearing plate, the rear side surface of the second bearing block is connected with a fourth threaded block in a sliding manner, the right side surface of the bearing plate is rotatably connected with a fifth threaded shaft which is in threaded connection with the fourth threaded block, the fifth threaded shaft is connected with the fourth motor through a fourth synchronous belt, and a sixth threaded shaft is rotatably connected between the third threaded block and the fourth threaded block, no. two fixed blocks have set firmly on the leading flank of a carrier block, there is No. two spring blocks through No. three spring coupling on the side of No. two fixed blocks, the leading flank internal rotation of No. two spring blocks is connected with No. three axes of rotation, No. three axes of rotation No. six threaded spindle with connect through No. five hold-in ranges between the No. three threaded spindle, No. three threaded spindle with respectively be equipped with not less one spout in the anchor ring of No. six threaded spindle, No. three threaded spindle with be connected with a cutting block on the No. six threaded spindle separately.

6. A roll scraping apparatus as claimed in claim 5, characterized in that: the cutting block is internally provided with a threaded hole which is communicated with the six threaded shafts and the three threaded shafts in a left-right mode and is in threaded connection with the three threaded shafts, an annular groove is arranged in the annular surface of the threaded hole, the side surface of the annular groove is connected with a bevel gear in a rotating mode, the bevel gear is located in the outer ring of the three threaded shafts and the outer ring of the six threaded shafts, a sliding block extending into the sliding groove is fixedly arranged on the inner annular surface of the bevel gear, a transfer groove is arranged on the right side surface of the annular groove, a pneumatic cavity is arranged in the cutting block, the lower side surface of the transfer groove is connected with a fourth rotating shaft extending upwards to be communicated with the pneumatic cavity, a second bevel gear meshed with the first bevel gear is arranged on the fourth rotating shaft, a disc is arranged at the upper end of the fourth rotating shaft, a convex block is fixedly arranged on the upper side surface of the disc, and a first piston and a second piston are slidably connected in the pneumatic cavity in a left-right mode, the left side of a piston is articulated have with the protrusion piece rotates the connecting rod of connecting, be equipped with the cutting groove that link up from top to bottom in the cutting block, the right flank of No. two pistons has set firmly run through to cut the connecting block in the groove, the right flank of connecting block has set firmly and extends to the sword of scraping of cutting block upside.

7. A roll scraping apparatus as claimed in claim 6, characterized in that: a sliding rod is arranged in the cutting block, so that the cutting block cannot rotate.

8. A roll scraping apparatus as claimed in claim 5, characterized in that: be equipped with in the downside in drive chamber and reject an electro-magnet of carrier block, be equipped with in the downside in grinding the chamber and reject No. two electro-magnets of No. two carrier blocks.

9. A roll scraping apparatus as claimed in claim 1, characterized in that: be equipped with the restriction groove in the right flank of slide, sliding connection has No. two stoppers in the restriction groove, No. two stoppers through No. five spring coupling in the right flank of restriction groove, and be equipped with in the right flank of restriction groove and reject No. three electro-magnets of No. two stoppers.