Roller press with self-checking mechanism

Abstract

The invention relates to the field of roller presses, and discloses a roller press with a self-checking mechanism, the roller press comprises a roller press box and supporting legs, the supporting legs are fastened to the corners, close to the lower portion, of the left side face and the right side face of the roller press box through bolts, the self-checking mechanism is arranged in the roller press box, and a feeding hopper is installed in the middle of the upper face of the roller press box; two pressing rollers are arranged on the upper portion in the roller pressing box through a driving structure, a dredging structure is arranged at the position of the feeding hopper, when the corresponding scraping strips and bristles in the roller pressing box need to be cleaned, the corresponding scraping strips and bristles can be switched out from the roller pressing box through a switching structure, and the other group of scraping strips and bristles are switched into the roller pressing box. The cleaning device is simple in structure and convenient to operate, cleaning work of the scraping strip and the bristles is facilitated, rolling work can be continued in the rolling box, the working efficiency is improved, the cleaning plate provided with the bristles is installed on the cleaning cylinder through the installation structure, and replacement work is facilitated when the bristles are used for a long time and need to be replaced.

Description

Technical Field

[0001] The invention relates to the technical field of roller presses, in particular to a roller press with a self-checking mechanism. Background Art

[0002] Roller press, also known as extrusion mill, roller mill, and roller mill, is a new type of cement energy-saving grinding equipment developed in the mid-1980s. It can replace the high-energy-consuming and low-efficiency ball mill pre-grinding system and reduce steel consumption and working noise. It is suitable for new plant construction and can also be used for technical transformation of old plants. The roller press in the prior art is provided with a cleaning assembly, whose structure includes a second motor, a first sprocket, a first rotating rod, a rotating drum, a scraping bar, a chain, a second sprocket, a second rotating rod, and a cleaning brush, which can scrape and clean the outer surfaces of the fixed roller and the movable roller to remove the material particles attached to the surface, so as to avoid affecting the use of the roller press. A cleaning assembly is provided, whose structure includes a second motor, a first sprocket, a first rotating rod, a rotating drum, a scraping bar, a chain, a second sprocket, a second rotating rod, and a cleaning brush, which can scrape and clean the outer surfaces of the fixed roller and the movable roller to remove the material particles attached to the surface, so as to avoid affecting the use of the roller press; However, after long-term use, the scraper strip and the cleaning brush will be adhered to the rolled material, and the cleaning brush will be damaged after long-term use, and the scraper strip needs to be cleaned, and the cleaning brush needs to be cleaned or replaced. Since the scraper strip and the cleaning brush are arranged in the roller press box, the cleaning of the scraper strip and the cleaning brush or replacement operations are relatively troublesome, and during the cleaning or replacement process, the roller press needs to stop the rolling work, which reduces the working efficiency. Therefore, there is room for improvement. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a roller press with a self-checking mechanism.

[0004] The present invention provides a roller press with a self-checking mechanism, which adopts the following technical solution: A roller press with a self-checking mechanism, comprising a roller press box and support legs, the support legs are fastened with bolts at the corners near the bottom of the left and right sides of the roller press box, the self-checking mechanism is arranged in the roller press box, a feed hopper is installed at the middle of the upper part of the roller press box, two pressing rollers are arranged at the upper part of the roller press box through a driving structure, a dredging structure is arranged at the feed hopper, and a cleaning structure is arranged at the upper part of the left and right sides of the roller press box; The cleaning structure includes an opening opened at the upper left and right sides of the roller press box, a first rotating shaft rotatingly passing through the middle of the inner walls on the front and rear sides of the opening, two baffles connected to the first rotating shaft, the two baffles are distributed in the vertical diameter of the first rotating shaft, and baffles are installed on the side surfaces of the two baffles away from each other, and the two baffles are tightly attached to the inner wall of the opening, two mounting frames are installed on the first rotating shaft, the two mounting frames are distributed in the horizontal radial direction of the first rotating shaft, and a fixing rod is fixedly installed at a position away from the first rotating shaft between the inner walls on the front and rear sides of the mounting frame, and the fixing rod A scraping strip is provided on a fixed sleeve on the fixed rod, and convex strips are connected to the front and rear side surfaces of the mounting frame near the scraping strips, and a second rotating shaft is rotatably connected between each group of two convex strips, and a cleaning cylinder is provided on the fixed sleeve on the second rotating shaft, and a plurality of cleaning plates are installed on the cleaning cylinder through a mounting structure, and bristles are provided on a side surface of each cleaning plate away from the cleaning cylinder, and a tightening rotating structure is provided at a position near the two middle second rotating shafts on the front side surface of the roller press box, and grooves that are interconnected are provided at the front ends of the convex strips and the second rotating shaft, and a switching structure is provided in the middle of the front side surface of the roller press box.

[0005] Preferably, the mounting structure includes a plurality of mounting grooves provided on the side of the cleaning cylinder, each of the cleaning plates being movably inserted into the mounting groove at the corresponding position, a T-shaped rod being movably inserted into the position of one end of the cleaning cylinder corresponding to each of the cleaning plates, one end of the T-shaped rod being movably inserted into a slot provided on the end surface of the cleaning plate, a first spring being sleeved on the portion of the T-shaped rod passing through the cleaning cylinder, and two ends of the first spring being respectively connected to one end of the T-shaped rod and the cleaning cylinder.

[0006] Preferably, the tightening and rotating structure includes two electric telescopic rods fixedly installed at the positions of two second rotating shafts near the middle on the front side of the roller press box, the inner wall of the roller press box at the position of the electric telescopic rod is connected to a fixed tube, a movable tube is movably inserted into one end of the fixed tube, an end sleeve is installed at the end of the movable tube away from the fixed tube, a plurality of through grooves are opened at equal intervals on the circumference of the side surface of the end sleeve, a through strip is movably passed through each of the through grooves, a tightening strip is installed on the end of each through strip that passes through the end sleeve, a first driving structure is provided between the tightening strip and the fixed tube, the movable rod is connected to the end of the output shaft of the electric telescopic rod inserted into the fixed tube, and one end of the movable rod is connected to the inner wall of the end sleeve.

[0007] Preferably, the first driving structure includes a plurality of fixing bars arranged on the outer side of the fixing tube corresponding to each through bar, each of the fixing bars is provided with a driving groove, the driving groove is in a "Z" shape, and a driving rod is connected to a side surface of each through bar close to the fixing bar, and one end of the driving rod can move through the corresponding driving groove.

[0008] Preferably, the switching structure includes a vertical plate installed in the middle of the front face of the roller press box, the vertical plate is provided with a vertical slot, a moving bar is slidably arranged in the vertical slot, a positioning rod is movably passed through the middle of the front face of the moving bar, a handle is installed on one end of the positioning rod, a second spring is sleeved on the positioning rod, the two ends of the second spring are respectively connected to the handle and the moving bar, the inner groove of the vertical slot is provided with positioning slots near the upper and lower ends, one end of the positioning rod is movably inserted into the positioning slot below, and the edges in the middle of the left and right sides of the front face of the moving bar are connected with driving strips, and a first gear is fixedly sleeved on the front end of the first rotating shaft, and the first gear is meshed with the teeth on the driving strip.

[0009] Preferably, the driving structure includes a third rotating shaft fixedly passing through two pressure rollers, the third rotating shaft rotates to pass through a roller press box, and second gears that are meshed with each other are sleeved on the rear ends of the two third rotating shafts. A motor is installed on the front side of the roller press box at the front end of one of the third rotating shafts, and the output shaft of the motor is connected to the front end of the corresponding third rotating shaft.

[0010] Preferably, the dredging structure includes protrusions respectively connected to the upper and lower edges of the front and rear side surfaces of the feed hopper, the two protrusions at the top are movably passed through lifting tubes, a lifting plate is connected between the two ends of the lifting tubes, and a plurality of dredging rods distributed at equal intervals are connected under the lifting plate, and each end of the dredging rod is inserted into the feed hopper, and the tops of the two protrusions at the bottom are fixedly connected with vertical rods, the bottom ends of the lifting tubes are movably mounted on the vertical rods, and a second driving structure is arranged between the lifting tube and the front end of another third rotating shaft.

[0011] Preferably, the second driving structure includes a fourth gear sleeved at the front end of another third rotating shaft, the fourth gear is meshed with the third gear, the fourth gear is fixedly passed through the axis of the third gear, one end of the fourth rotating shaft is rotatably connected to the front side of the roller press box, an extrusion plate is installed at the bottom end of the fourth rotating shaft, an L-shaped plate is fixedly sleeved at the bottom end of the lifting tube, an extrusion wheel is movably installed at the bottom end of the L-shaped plate, the extrusion wheel is located directly above the extrusion plate, a third spring is sleeved on the vertical rod, and both ends of the third spring are respectively connected to the lower protrusion and the bottom end of the lifting tube.

[0012] In summary, the present invention includes the following beneficial technical effects: The present invention is provided with a cleaning structure and a switching structure. Each group of cleaning structures is provided with two groups of scraping strips, cleaning plates and bristles. When the corresponding scraping strips and bristles in the roller pressing box need to be cleaned, the switching structure can be used to switch out the corresponding scraping strips and bristles from the roller pressing box, and switch in another group of scraping strips and bristles. This not only facilitates the cleaning of the scraping strips and bristles, but also allows the roller pressing work to continue in the roller pressing box, thereby improving the work efficiency. The cleaning plate provided with the bristles is installed on the cleaning cylinder through the mounting structure, which facilitates the replacement of the bristles when they need to be replaced after long-term use. The present invention is provided with a driving structure, which can automatically drive the two pressing rollers to rotate and perform rolling work; The present invention is provided with a tight rotation structure and a first driving structure, so that when the corresponding cleaning cylinder is switched into the roller pressing box, the corresponding cleaning cylinder and the bristles can be driven to rotate as a whole, which not only improves the cleaning quality of the pressing roller, but also makes full use of multiple groups of bristles; The present invention is provided with a dredging structure and a second driving structure, which can automatically drive the lifting plate and the dredging rod to move up and down as a whole during the rotation of the pressure roller to perform the operation of the pressure roller, so that the dredging function can be achieved during the feeding process in the feed hopper, thereby reducing the problem of feed blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a roller press with a self-checking mechanism in an embodiment of the present invention; Figure 2 In the embodiment of the present invention Figure 1 A magnified view of the structure at A; Figure 3 2 is a schematic diagram of the structure of the rear side of the roller press box in an embodiment of the present invention; Figure 4 is a schematic diagram of the structure inside the roller press box in an embodiment of the present invention; Figure 5 In the embodiment of the present invention Figure 4 A magnified view of the structure at B; Figure 6 is a schematic structural diagram of a cleaning structure in an embodiment of the present invention; Figure 7 In the embodiment of the present invention Figure 6 A magnified view of the structure at C; Figure 8 is a schematic structural diagram of a tightly rotating structure in an embodiment of the present invention; Fig. 9 In the embodiment of the present invention Figure 8 Enlarged view of the structure at D.

[0014] Description of the reference numerals: 1, roller press box; 2, support leg; 3, feed hopper; 4, opening; 5, first rotating shaft; 6, mounting frame; 7, baffle; 8, fixed rod; 9, scraper strip; 10, convex strip; 11, second rotating shaft; 12, cleaning cylinder; 13, bristles; 14, cleaning plate; 15, mounting groove; 16, T-shaped rod; 17, first spring; 18, electric telescopic rod; 19, moving rod; 20, fixed tube; 21, moving tube; 22, end sleeve; 23, through groove; 24, tight strip; 25, through strip; 26, driving rod; 27, fixed strip; 2 8. driving groove; 29. ​​first gear; 30. vertical plate; 31. vertical groove; 32. moving bar; 33. second spring; 34. handle; 35. positioning groove; 36. driving bar; 37. motor; 38. third rotating shaft; 39. second gear; 40. pressure roller; 41. bump; 42. lifting tube; 43. lifting plate; 44. dredging rod; 45. L-shaped plate; 46. vertical rod; 47. third spring; 48. extrusion wheel; 49. fourth rotating shaft; 50. third gear; 51. fourth gear; 52. extrusion plate; 53. baffle; 54. groove. DETAILED DESCRIPTION

[0015] The following is combined with Figure 1-Figure 9 The present invention is described in further detail.

[0016] The embodiment of the present invention discloses a roller press with a self-inspection mechanism, comprising a roller press box 1 and a support leg 2, the support leg 2 is fastened with bolts at the corners near the bottom of the left and right sides of the roller press box 1, the self-inspection mechanism is arranged in the roller press box 1, a feed hopper 3 is installed at the middle of the upper part of the roller press box 1, two pressing rollers 40 are arranged at the upper part of the roller press box 1 through a driving structure, a dredging structure is arranged at the feed hopper 3, and a cleaning structure is arranged at the upper part of the left and right sides of the roller press box 1; The cleaning structure includes an opening 4 opened at the upper part of the left and right sides of the roller press box 1, a first rotating shaft 5 is rotated and passed through the middle of the inner walls on the front and rear sides of the opening 4, two baffles 7 are connected to the first rotating shaft 5, the two baffles 7 are distributed in the vertical diameter of the first rotating shaft 5, and baffles 53 are installed on the side surfaces of the two baffles 7 away from each other, and the baffles 53 and the baffles 7 play a shielding role at the opening 4, and the two baffles 53 are tightly attached to the inner wall of the opening 4, and two mounting frames 6 are installed on the first rotating shaft 5, and the two mounting frames 6 are distributed in the horizontal radial direction of the first rotating shaft 5, and a fixing rod 8 is fixedly installed at a position away from the first rotating shaft 5 between the inner walls on the front and rear sides of the mounting frame 6. , a scraper strip 9 is fixedly mounted on the fixed rod 8, and convex strips 10 are connected to the positions of the scraper strips 9 on the front and rear sides of the mounting frame 6, and a second rotating shaft 11 is rotatably connected between each group of two convex strips 10, and a cleaning cylinder 12 is fixedly mounted on the second rotating shaft 11, and a plurality of cleaning plates 14 are mounted on the cleaning cylinder 12 through a mounting structure, and bristles 13 are arranged on the side surface of each cleaning plate 14 away from the cleaning cylinder 12, and a tight rotation structure is arranged at the position of the two middle second rotating shafts 11 on the front side of the roller press box 1, and grooves 54 that are interconnected are opened at the front ends of the convex strips 10 and the second rotating shafts 11, and a switching structure is arranged in the middle of the front side of the roller press box 1; The switching structure includes a vertical plate 30 installed in the middle of the front of the roller press box 1, a vertical slot 31 is provided on the vertical plate 30, a moving bar 32 is slidably provided in the vertical slot 31, a positioning rod is movably passed through the middle of the front of the moving bar 32, a handle 34 is installed on one end of the positioning rod, a second spring 33 is sleeved on the positioning rod, and the two ends of the second spring 33 are respectively connected to the handle 34 and the moving bar 32, and the inner groove of the vertical slot 31 is provided with a positioning slot 35 near the upper and lower ends, and one end of the positioning rod is movably inserted into the positioning slot 35 below, and the edges in the middle of the left and right sides of the front of the moving bar 32 are connected with driving bars 36, and the front end of the first rotating shaft 5 is fixedly sleeved with a first gear 29, and the first gear 29 is meshed with the teeth on the driving bar 36. The driving structure includes a third rotating shaft 38 fixedly passing through the two pressing rollers 40, the third rotating shaft 38 rotates and passes through the roller pressing box 1, and the rear ends of the two third rotating shafts 38 are sleeved with second gears 39 that are meshed and connected with each other. A motor 37 is installed at the front end of one of the third rotating shafts 38 on the front side of the roller pressing box 1, and the output shaft of the motor 37 is connected to the front end of the corresponding third rotating shaft 38. When the motor 37 is started, the two pressing rollers 40 are driven to rotate in the roller pressing box 1 under the action of the two second gears 39 to perform roller pressing on the materials, and the scraper strip 9 is used to close the rotating pressing roller 40 to clean the pressing roller 40. When the scraper strip 9 is used, the two pressing rollers 40 are rotated in the roller pressing box 1. When the brush 13 needs to be cleaned after being used for a long time, the handle 34 can be pulled on the movable bar 32 to pull one end of the positioning rod out of the positioning groove 35 below, and then the handle 34 can be used to pull the movable bar 32 to slide upward in the vertical groove 31 of the vertical plate 30, thereby driving the two driving bars 36 to move upward on the roller press box 1, and the first rotating shaft 5 is driven to rotate through the first gear 29, so that the scraper strip 9 and the bristles 13 outside the roller press box 1 are rotated into the roller press box 1 to continue cleaning the pressure roller 40, and the scraper strip 9 and the bristles 13 in the roller press box 1 are synchronously rotated out, thereby facilitating the cleaning of the scraper strip 9 and the bristles 13 as a whole.

[0017] See also Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 The mounting structure includes a plurality of mounting grooves 15 provided on the side of the cleaning cylinder 12, each cleaning plate 14 is movably inserted into the mounting groove 15 at the corresponding position, a T-shaped rod 16 is movably inserted into the position corresponding to each cleaning plate 14 at one end of the cleaning cylinder 12, one end of the T-shaped rod 16 is movably inserted into a slot provided on the end surface of the cleaning plate 14, a first spring 17 is sleeved on the portion of the T-shaped rod 16 passing through the cleaning cylinder 12, and the two ends of the first spring 17 are respectively connected to one end of the T-shaped rod 16 and the cleaning cylinder 12, when the bristles 13 need to be replaced, one end of the T-shaped rod 16 can be pulled out of the slot on the end surface of the cleaning plate 14, the fixing of the cleaning plate 14 can be released in the mounting groove 15, and then the bristles 13 can be replaced; The tightening rotation structure includes two electric telescopic rods 18 fixedly mounted at the positions of the two second rotating shafts 11 near the middle of the front side of the roller press box 1, the electric telescopic rods 18 are fixedly mounted on the fifth gear (not shown in the figure), and the fifth gear is rotatably mounted on the roller press box 1. The inner wall of the roller press box 1 is connected with a fixed tube 20 at the position of the electric telescopic rod 18, and a mobile tube 21 is movably inserted into one end of the fixed tube 20, and an end sleeve 22 is installed at the end of the mobile tube 21 away from the fixed tube 20. A plurality of through grooves 23 are opened at equal intervals on the side surface of the end sleeve 22, and a penetration strip 25 is movably passed through each through groove 23. A tightening strip 24 is installed on one end of each penetration strip 25 passing through the end sleeve 22, and a first driving structure is arranged between the tightening strip 24 and the fixed tube 20, and a mobile rod 19 is connected to one end of the output shaft of the electric telescopic rod 18 inserted into the fixed tube 20, and one end of the mobile rod 19 is connected to the inner wall of the end sleeve 22; The first driving structure includes a plurality of fixing bars 27 arranged on the outer side of the fixing tube 20 corresponding to each through-bar 25, each fixing bar 27 is provided with a driving groove 28, and the driving groove 28 is in a "Z" shape. A driving rod 26 is connected to a side surface of each through-bar 25 close to the fixing bar 27, and one end of the driving rod 26 can be movably passed through the corresponding driving groove 28. After the corresponding scraper bar 9 and the bristles 13 are switched into the roller press box 1, the electric telescopic rod 18 can be started to drive the moving tube 21 and the end sleeve 22 to move as a whole in the fixing tube 20, thereby driving the driving rod 26 to slide in the driving groove 28 of the fixing bar 27, thereby pulling the plurality of through-bars 25 and the pressing bars 24 on the end sleeve 22 to move as a whole in a direction away from each other, so that after the pressing bar 24 is inserted into the groove 54, the pressing bar 24 is pressed against the inner wall of the groove 54, thereby realizing the fixed connection between the second rotating shaft 11 and the end sleeve 22.

[0018] See also Figure 1 and Figure 2 The dredging structure includes protrusions 41 respectively connected to the upper and lower edges of the front and rear side surfaces of the feed hopper 3, and the two protrusions 41 at the top are respectively movably passed through a lifting tube 42, and a lifting plate 43 is connected between the two ends of the lifting tube 42. A plurality of dredging rods 44 distributed at equal intervals are connected below the lifting plate 43, and the ends of each dredging rod 44 are inserted into the feed hopper 3. The upper parts of the two protrusions 41 at the bottom are fixedly connected with a vertical rod 46, and the bottom end of the lifting tube 42 is movably sleeved on the vertical rod 46. A second driving structure is provided between the lifting tube 42 and the front end of another third rotating shaft 38; The second driving structure includes a fourth gear 51 sleeved at the front end of another third rotating shaft 38, and the fourth gear 51 is meshedly connected with the fifth gear on the electric telescopic rod 18, so that when the pressure roller 40 rotates, it can synchronously drive the electric telescopic rod 18 to rotate, thereby driving the corresponding cleaning cylinder 12 and the brush bristles 13 to rotate as a whole to clean the pressure roller 40. The third gear 50 is meshedly connected to the fourth gear 51, and a fourth rotating shaft 49 is fixedly passed through the axis of the third gear 50. One end of the fourth rotating shaft 49 is rotatably connected to the front side of the roller press box 1, and an extrusion disk 52 is installed at the bottom end of the fourth rotating shaft 49. An L-shaped plate 45 is fixedly sleeved at the bottom end of the lifting tube 42. The L-shaped An extrusion wheel 48 is movably installed at the bottom end of the plate 45, and the extrusion wheel 48 is located directly above the extrusion plate 52. A third spring 47 is sleeved on the vertical rod 46, and the two ends of the third spring 47 are respectively connected to the lower protrusion 41 and the bottom end of the lifting tube 42. The third rotating shaft 38 drives the pressing roller 40 to rotate, and drives the extrusion plate 52 to rotate through the fourth gear 51 and the third gear 50. The intermittent extrusion and pushing of the extrusion plate 52 on the extrusion wheel 48 and the reset effect of the third spring 47 on the extrusion wheel 48 can automatically drive the lifting plate 43 and the dredging rod 44 to move up and down as a whole, so as to dredge the material when feeding in the feed hopper 3, thereby reducing the problem of feed blockage.

[0019] The implementation principle of a roller press with a self-checking mechanism in an embodiment of the present invention is as follows: first, the material to be processed is added from the feed hopper 3 to the roller press box 1, and the motor 37 is started. Under the action of the two second gears 39, the two rollers 40 are driven to rotate in the roller press box 1 to roll the material, and the scraper 9 is used to close the rotating rollers 40 to clean the rollers 40. At the same time, the rotation of the fourth gear 51 at one end of the third rotating shaft 38 drives the third gear 50 and the fifth gear to rotate respectively. The rotation of the third gear 50 drives the extrusion plate 52 to rotate, and the extrusion plate 52 is used to intermittently rotate. The squeezing and pushing of the squeezing wheel 48 and the resetting effect of the third spring 47 on the squeezing wheel 48 can automatically drive the lifting plate 43 and the dredging rod 44 to move up and down as a whole, so as to dredge the material when feeding in the feed hopper 3, and reduce the problem of feed blockage. The rotation of the fifth gear drives the electric telescopic rod 18 to rotate, thereby driving the cleaning barrel 12 and the brush 13 in the roller press box 1 to rotate as a whole to improve the cleaning quality of the pressure roller 40. When the scraper strips 9 and the brush 13 in the roller press box 1 need to be cleaned and replaced after a long period of use, first, start the electric telescopic rod 18 to drive the moving tube 12 and the brush 13 to rotate. The first and second ends of the second rotating shaft 11 are connected to the second rotating shaft 11, and the first end of the second rotating shaft 11 is connected to the second rotating shaft 12. The first end of the second rotating shaft 12 is connected to the second rotating shaft 12, and the second end of the second rotating shaft 12 ... The first gear 29 drives the first rotating shaft 5 to rotate, and the scraper strip 9 and the bristles 13 outside the roller press box 1 are rotated into the roller press box 1 to continue cleaning the pressure roller 40, and the scraper strip 9 and the bristles 13 inside the roller press box 1 are rotated out synchronously, thereby facilitating the cleaning of the scraper strip 9 and the bristles 13 as a whole, and the cleaning plate 14 is fixed in the mounting groove 15 by the T-shaped rod 16. When the bristles 13 need to be replaced, one end of the T-shaped rod 16 can be pulled out from the slot on the end face of the cleaning plate 14, and then the cleaning plate 14 can be pulled out from the corresponding mounting groove 15, so that the bristles 13 can be replaced, and the operation is simpler and more convenient.

[0020] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A roller press with a self-checking mechanism, comprising a roller press box (1) and a support leg (2), characterized in that: The left and right sides of the roller press box (1) are fastened with support legs (2) by bolts at the corners near the bottom, the roller press box (1) is provided with a self-inspection mechanism, a feed hopper (3) is installed at the middle of the top of the roller press box (1), two press rollers (40) are arranged at the top of the roller press box (1) through a driving structure, a dredging structure is arranged at the feed hopper (3), and cleaning structures are arranged at the top of the left and right sides of the roller press box (1); The cleaning structure comprises an opening (4) formed above the left and right sides of the roller press box (1); a first rotating shaft (5) is rotatably passed through the middle of the inner walls on the front and rear sides of the opening (4); two baffles (7) are connected to the first rotating shaft (5); the two baffles (7) are distributed in the vertical diameter direction of the first rotating shaft (5); baffle bars (53) are installed on the side surfaces of the two baffles (7) away from each other; the two baffle bars (53) are closely attached to the inner wall of the opening (4); two mounting frames (6) are installed on the first rotating shaft (5); the two mounting frames (6) are distributed in the horizontal radial direction of the first rotating shaft (5); a fixing rod (8) is fixedly installed at a position away from the first rotating shaft (5) between the inner walls on the front and rear sides of the mounting frame (6); the fixing rod (8) is fixed on the fixing rod (8) The sleeve is provided with a scraper strip (9), and convex strips (10) are connected to the front and rear side surfaces of the mounting frame (6) near the scraper strips (9), and a second rotating shaft (11) is rotatably connected between each group of two convex strips (10). A cleaning cylinder (12) is fixedly sleeved on the second rotating shaft (11), and a plurality of cleaning plates (14) are mounted on the cleaning cylinder (12) through a mounting structure. Bristles (13) are provided on a side surface of each cleaning plate (14) away from the cleaning cylinder (12). A tight rotation structure is provided at a position near the middle two second rotating shafts (11) on the front side surface of the roller press box (1), and grooves (54) that are connected to each other are provided at the front ends of the convex strips (10) and the second rotating shafts (11). A switching structure is provided in the middle of the front side surface of the roller press box (1).

2. A roller press with a self-checking mechanism according to claim 1, characterized in that: The mounting structure comprises a plurality of mounting grooves (15) formed on the side of the cleaning cylinder (12); each of the cleaning plates (14) is movably inserted into the mounting grooves (15) at corresponding positions; a T-shaped rod (16) is movably inserted into the position of one end surface of the cleaning cylinder (12) corresponding to each of the cleaning plates (14); one end of the T-shaped rod (16) is movably inserted into a slot formed on the end surface of the cleaning plate (14); a first spring (17) is sleeved on a portion of the T-shaped rod (16) that passes through the cleaning cylinder (12); and two ends of the first spring (17) are respectively connected to one end of the T-shaped rod (16) and the cleaning cylinder (12).

3. A roller press with a self-checking mechanism according to claim 1, characterized in that: The pressing and rotating structure comprises two electric telescopic rods (18) fixedly mounted on the front side of the roller press box (1) near the middle of two second rotating shafts (11); the inner wall of the roller press box (1) at the position of the electric telescopic rods (18) is connected to a fixed tube (20); a movable tube (21) is movably inserted into one end of the fixed tube (20); an end sleeve (22) is mounted on the end of the movable tube (21) away from the fixed tube (20); and the side surface of the end sleeve (22) is equidistant from the circumference. A plurality of through slots (23) are provided, each of the through slots (23) having a through bar (25) movably passing therethrough, a tightening bar (24) being mounted on one end of each of the through bars (25) passing through the end sleeve (22), a first driving structure being arranged between the tightening bar (24) and the fixed tube (20), a moving rod (19) being connected to one end of the output shaft of the electric telescopic rod (18) inserted into the fixed tube (20), and one end of the moving rod (19) being connected to the inner wall of the end sleeve (22).

4. A roller press with a self-checking mechanism according to claim 3, characterized in that: The first driving structure comprises a plurality of fixing bars (27) arranged on the outer side of the fixing tube (20) corresponding to each penetration bar (25), each fixing bar (27) being provided with a driving groove (28), the driving groove (28) being in a "Z" shape, and a driving rod (26) being connected to a side surface of each penetration bar (25) close to the fixing bar (27), one end of the driving rod (26) being able to movably pass through the corresponding driving groove (28).

5. A roller press with a self-checking mechanism according to claim 1, characterized in that: The switching structure comprises a vertical plate (30) mounted in the middle of the front face of the roller press box (1), the vertical plate (30) being provided with a vertical slot (31), a moving bar (32) being slidably arranged in the vertical slot (31), a positioning rod movably passing through the middle of the front face of the moving bar (32), a handle (34) being mounted on one end of the positioning rod, a second spring (33) being sleeved on the positioning rod, two ends of the second spring (33) being respectively connected to the handle (34) and the moving bar (32), positioning slots (35) being provided in the inner groove of the vertical slot (31) near the upper and lower ends, one end of the positioning rod being movably inserted into the positioning slot (35) below, driving bars (36) being connected to the edges in the middle of the left and right sides of the front face of the moving bar (32), a first gear (29) being fixedly sleeved on the front end of the first rotating shaft (5), the first gear (29) being meshingly connected with the teeth on the driving bar (36).

6. A roller press with a self-checking mechanism according to claim 1, characterized in that: The driving structure comprises a third rotating shaft (38) fixedly passing through two pressing rollers (40), the third rotating shaft (38) rotatingly passing through the roller pressing box (1), the rear ends of the two third rotating shafts (38) being sleeved with second gears (39) meshingly connected with each other, a motor (37) being installed at the front end of one of the third rotating shafts (38) on the front side of the roller pressing box (1), and the output shaft of the motor (37) being connected to the front end of the corresponding third rotating shaft (38).

7. A roller press with a self-checking mechanism according to claim 1, characterized in that: The dredging structure comprises protrusions (41) respectively connected to the upper and lower edges of the front and rear side surfaces of the feed hopper (3); the two protrusions (41) at the top are respectively movably passed through a lifting tube (42); a lifting plate (43) is connected between the two ends of the lifting tube (42); a plurality of dredging rods (44) distributed at equal intervals are connected below the lifting plate (43); the ends of each dredging rod (44) are inserted into the feed hopper (3); the upper parts of the two protrusions (41) at the bottom are fixedly connected to a vertical rod (46); the bottom ends of the lifting tubes (42) are movably sleeved on the vertical rod (46); and a second driving structure is provided between the lifting tube (42) and the front end of another third rotating shaft (38).

8. A roller press with a self-checking mechanism according to claim 7, characterized in that: The second driving structure comprises a fourth gear (51) sleeved on the front end of another third rotating shaft (38), the fourth gear (51) being meshedly connected with the third gear (50), a fourth rotating shaft (49) fixedly passing through the axis of the third gear (50), one end of the fourth rotating shaft (49) being rotatably connected to the front surface of the roller press box (1), an extrusion plate (52) being installed at the bottom end of the fourth rotating shaft (49), an L-shaped plate (45) being fixedly sleeved on the bottom end of the lifting tube (42), an extrusion wheel (48) being movably installed at the bottom end of the L-shaped plate (45), the extrusion wheel (48) being located directly above the extrusion plate (52), a third spring (47) being sleeved on the vertical rod (46), the two ends of the third spring (47) being respectively connected to the lower protrusion (41) and the bottom end of the lifting tube (42).

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