An adjustable doctor positioning assembly
By designing an adjustable scraper positioning component, the problems of scraper devices being unable to remove highly viscous materials and adjusting the gap were solved, achieving close contact between the scraper and the pressure roller, thus improving the cleaning effect and applicability.
Patent Information
- Application Number
- CN202310719008.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-16
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2043-06-16
AI Technical Summary
The existing scraper device of dry granulation machine is difficult to effectively remove materials with high viscosity and strong adsorption, and it is not convenient to adjust the gap between the scraper and the pressure roller to adapt to different specifications of pressure roller.
An adjustable scraper positioning assembly was designed, comprising an adjustment mechanism and a positioning mechanism. Through the cooperation of a connecting rod and a threaded column, the scraper distance can be adjusted and fixed, ensuring that the scraper is in close contact with the pressure roller and adapting to pressure rollers of different sizes.
It improves the removal of adhering substances, enhances the applicability of the scraper, adapts to different specifications of pressure rollers, and improves the production consistency and efficiency of the pellet mill.
Smart Images

Figure CN116688860B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of dry granulator, in particular to an adjustable scraper positioning assembly. BACKGROUND
[0002] In the production process of the dry granulator, some materials with high viscosity and strong adsorption will adhere to the two sides of the compression roller, and the adhesion will increase with the production, which will cause the wear of the front and rear sealing plates to increase, resulting in material leakage and affecting production. Therefore, a side scraper device needs to be installed on the compression roller.
[0003] CN 214553339 U discloses a side scraper device for a dry granulator, which comprises a connecting roller rotatably connected to a rack, and the outer surface of the first connecting roller is integrally connected with a first compression roller. An upper scraper is in contact with the right end of the first compression roller, and a first connecting hole is formed in the middle end of the upper scraper. A second connecting roller is fixedly connected to the inner wall of a second compression roller, and the front and rear ends of the second connecting roller are rotatably connected to the rack. A lower scraper is in contact with the right end of the second compression roller, and a second connecting hole is formed in the middle end of the lower scraper. The outer ends of the upper and lower scrapers are connected to the rack by fixed bolts. The side scraper device for the dry granulator not only facilitates the installation of the side scraper on the compression roller, but also facilitates the cleaning of the side of the compression roller, and facilitates the limiting of the upper and lower scrapers.
[0004] However, the inventors have found that the above-mentioned technical solution still has at least the following defects:
[0005] First, the gap between the blade edge of the scraper and the two sides of the compression roller is necessary, so it is difficult to completely remove the material with high viscosity and strong adsorption. The adhesion between the adhesion and the side sealing plate of the compression roller will be repeatedly rubbed, which will eventually cause the color to change and the hardness to increase. When the adhesion hardens to a certain extent, it will fall off and enter the finished product, affecting the consistency of the finished product.
[0006] Second, the gap between the scraper and the compression roller cannot be adjusted, and it is more difficult to adjust when replacing the compression roller of different specifications. SUMMARY
[0007] Therefore, the purpose of the present application is to provide an adjustable scraper positioning assembly to solve the problem of difficult adjustment when replacing the compression roller of different specifications, the gap between the scraper and the compression roller, and the difficulty in completely removing the material with high viscosity and strong adsorption.
[0008] Based on the above purpose, the present application provides an adjustable scraper positioning assembly.
[0009] An adjustable scraper positioning assembly, comprising a mounting seat, scraper assemblies are arranged at both ends of the mounting seat, the scraper assemblies comprise mounting blocks slidingly mounted on both sides of the mounting seat, a trapezoidal block is integrally formed on one side of the mounting block, a scraper is fixedly mounted on the trapezoidal block, a first circular groove and a first through hole are arranged on the left side of the mounting seat, a second circular groove and a second through hole are arranged on the right side of the mounting seat, a second cylindrical rack and a second limiting rod are slidingly mounted in the first circular groove and the first through hole respectively, one end of the second cylindrical rack and the second limiting rod is fixedly connected to the left mounting block, a first cylindrical rack and a first limiting rod are slidingly mounted in the second circular groove and the second through hole respectively, one end of the first cylindrical rack and the first limiting rod is fixedly connected to the right mounting block, an adjusting mechanism is arranged on one side of the mounting seat for adjusting the distance between the scrapers, and a positioning mechanism is arranged on the mounting seat for fixing the distance between the scrapers.
[0010] Further, the adjusting mechanism comprises a connecting rod, a connecting hole is arranged on one side of the mounting seat, the connecting rod is rotatably mounted in the connecting hole, an installation groove is arranged in the mounting seat, the connecting hole is in communication with the installation groove, the first circular groove and the second circular groove are in communication with the installation groove, and teeth are arranged on the connecting rod located in the installation groove.
[0011] Further, the positioning mechanism comprises a positioning block, a circular hole is arranged above the mounting seat, a limiting groove is arranged in the upper interior of the mounting seat, the positioning block is slidingly mounted in the limiting groove, a threaded column is rotatably mounted in the limiting groove, and the positioning block is threadedly connected to the threaded column.
[0012] Further, a limiting hole is in communication with the lower portion of the limiting groove, a limiting disc is rotatably mounted in the limiting hole, and one end of the threaded column is fixedly mounted in the limiting disc.
[0013] Further, a fixed sleeve is fixedly mounted on one side of the installation groove, a limiting ring is arranged on the upper portion of the connecting rod, and the limiting ring is rotatably connected in the fixed sleeve.
[0014] Further, two arc-shaped grooves are arranged below the positioning block, and anti-skid washers are arranged in the arc-shaped grooves.
[0015] Further, a first recess is arranged above the threaded column, a second recess is arranged on one end of the connecting rod, and the first recess and the second recess are both internal hexagonal recesses.
[0016] Further, the mounting seat is Z-shaped, the mounting blocks are arranged on the top of the mounting seat, and two mounting holes are arranged on one side of the bottom of the mounting seat.
[0017] Further, an adjusting groove is arranged on the scraper, and the adjusting groove is threadedly mounted on the trapezoidal block through bolts.
[0018] The beneficial effects of the present application are:
[0019] 1. The present application is provided with adjusting mechanism, rotating connecting rod can adjust the distance between the two scrapers, so that the two scrapers and the two sides of the press wheel are in contact, the operation is simple, the adhesion on both sides of the press wheel is greatly improved, and it can adapt to press wheels of different sizes, and the use range is wider.
[0020] 2. The present application is provided with positioning mechanism, rotating threaded column, the positioning block presses the first limiting rod and the second limiting rod, so that the distance between the two scrapers is fixed, so that the two scrapers can always adhere to the two sides of the press wheel, and the cleaning effect is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only illustrate the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0022] Figure 1 is a three-dimensional schematic view of an embodiment of the present application;
[0023] Figure 2 is a three-dimensional schematic view of an embodiment of the present application;
[0024] Figure 3 is a partial three-dimensional schematic view of an embodiment of the present application;
[0025] Figure 4 is a partial three-dimensional schematic view of an embodiment of the present application;
[0026] Figure 5 is a partial three-dimensional schematic view of an embodiment of the present application;
[0027] Figure 6 is a partial three-dimensional schematic view of an embodiment of the present application;
[0028] Figure 7 is a partial three-dimensional schematic view of an embodiment of the present application;
[0029] Figure 8 is a side view schematic view of an embodiment of the present application;
[0030] Figure 9 is a partial three-dimensional schematic view of an embodiment of the present application.
[0031] The marks in the figure are:
[0032] 1. Mounting block; 2. First circular groove; 3. First through hole; 4. Second circular groove; 5. Second through hole; 6. Connecting hole; 7. Circular hole; 8. Mounting groove; 9. Limiting groove; 10. Limiting hole; 11. Mounting block; 12. Trapezoidal block; 13. Scraper; 14. First cylindrical rack; 15. Second cylindrical rack; 16. First limiting rod; 17. Second limiting rod; 18. Connecting rod; 19. Tooth; 20. Fixing sleeve; 21. Limiting ring; 22. Positioning block; 23. Arc groove; 24. Threaded column; 25. Limiting plate; 26. First groove; 27. Adjusting groove; 28. Second groove; 29. Mounting hole. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.
[0034] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0035] like Figures 1-9 As shown, an adjustable scraper positioning assembly includes a mounting base 1, with scraper assemblies at both ends of the mounting base 1. Each scraper assembly includes mounting blocks 11 slidably mounted on both sides of the mounting base 1. A trapezoidal block 12 is integrally formed on one side of the mounting block 11, and a scraper 13 is fixedly mounted on the trapezoidal block 12. The left side of the mounting base 1 has a first circular groove 2 and a first through hole 3, and the right side of the mounting base 1 has a second circular groove 4 and a second through hole 5. A second cylindrical rack 15 and a second limiting rod 17 are slidably mounted in the first circular groove 2 and the first through hole 3, respectively. One end of the second cylindrical rack 15 and the second limiting rod 17 are fixedly connected to the left mounting block 11. A first cylindrical rack 14 and a first limiting rod 16 are slidably mounted in the second circular groove 4 and the second through hole 5, respectively. One end of the first cylindrical rack 14 and the first limiting rod 16 are fixedly connected to the right mounting block 11. An adjustment mechanism is provided on one side of the mounting base 1 for adjusting the distance between the scrapers 13, and a positioning mechanism is provided on the mounting base 1 for fixing the distance between the scrapers 13.
[0036] Further, the adjusting mechanism comprises a connecting rod 18, one side of the mounting seat 1 is provided with a connecting hole 6, the connecting rod 18 is rotatably installed in the connecting hole 6, the inside of the mounting seat 1 is provided with a mounting groove 8, the connecting hole 6 is in communication with the mounting groove 8, the first circular groove 2 and the second circular groove 4 are both in communication with the mounting groove 8, the connecting rod 18 is provided with a gear tooth 19 at the mounting groove 8, the connecting rod 18 is rotated, the first cylindrical gear rack 14 and the second cylindrical gear rack 15 are driven to move through the gear tooth 19 on the connecting rod 18, so that the mounting blocks 11 on both sides are driven to move, thereby adjusting the distance between the two scrapers 13, making the two scrapers 13 contact with the two sides of the compression wheel, and the removal effect of the adhesion on the two sides of the compression wheel is greatly improved, and the compression wheel of different sizes can be adapted, and the use range is wider.
[0037] Further, the positioning mechanism comprises a positioning block 22, the upper side of the mounting seat 1 is provided with a circular hole 7, the upper side of the inside of the mounting seat 1 is provided with a limiting groove 9, the positioning block 22 is slidably installed in the limiting groove 9, a threaded column 24 is rotatably installed in the limiting groove 9, and the positioning block 22 is screwed to the threaded column 24. The threaded column 24 is rotated to drive the positioning block 22 to descend, and the positioning block 22 is lowered to press the arc-shaped grooves 23 below the positioning block 22 on the upper sides of the first limiting rod 16 and the second limiting rod 17, so as to fix the distance between the two scrapers 13, and the two scrapers 13 can always adhere to the two sides of the compression wheel, further improving the removal effect.
[0038] Further, the lower side of the limiting groove 9 is in communication with a limiting hole 10, a limiting disc 25 is rotatably installed in the limiting hole 10, and one end of the threaded column 24 is fixedly installed in the limiting disc 25.
[0039] Further, one side of the mounting groove 8 is fixedly installed with a fixed sleeve 20, and the connecting rod 18 is provided with a limiting ring 21 on the upper side, and the limiting ring 21 is rotatably connected in the fixed sleeve 20.
[0040] Further, the lower side of the positioning block 22 is provided with two arc-shaped grooves 23, the arc-shaped grooves 23 are provided with anti-skid pads, and the arc-shaped grooves 23 can better adhere to the first limiting rod 16 and the second limiting rod 17, and the anti-skid pads can increase the friction force and be fixed more firmly.
[0041] Further, the upper side of the threaded column 24 is provided with a first recess 26, one end of the connecting rod 18 is provided with a second recess 28, and the first recess 26 and the second recess 28 are both internal hexagonal recesses.
[0042] Further, the mounting seat 1 is Z-shaped, the mounting block 11 is arranged on the top of the mounting seat 1, two mounting holes 29 are arranged on one side of the bottom of the mounting seat 1, and the mounting seat 1 is installed on the material conveying shell through the mounting holes 29.
[0043] Further, the scraper 13 is provided with an adjusting groove 27, the adjusting groove 27 is screw-threaded installed on the trapezoidal block 12, the adjusting groove 27 can adjust the scraper 13 according to the wear degree of the scraper 13.
[0044] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any omission, modification, substitution, improvement, etc. made in the spirit and principle of the present application shall be included in the scope of protection of the present application.
Claims
1. A method of regulating an adjustable doctor positioning assembly, comprising: The adjustable scraper positioning assembly comprises a mounting seat (1), scraper assemblies are arranged at both ends of the mounting seat (1), the scraper assemblies comprise mounting blocks (11) which are slidingly mounted at both sides of the mounting seat (1), a trapezoidal block (12) is integrally formed on one side of the mounting block (11), a scraper (13) is fixedly installed on the trapezoidal block (12), a first circular groove (2) and a first through hole (3) are arranged on the left side of the mounting seat (1), a second circular groove (4) and a second through hole (5) are arranged on the right side of the mounting seat (1), a second cylindrical rack (15) and a second limiting rod (17) are slidingly installed in the first circular groove (2) and the first through hole (3) respectively, one end of the second cylindrical rack (15) and the second limiting rod (17) is fixedly connected to the left mounting block (11), a first cylindrical rack (14) and a first limiting rod (16) are slidingly installed in the second circular groove (4) and the second through hole (5) respectively, one end of the first cylindrical rack (14) and the first limiting rod (16) is fixedly connected to the right mounting block (11), an adjusting mechanism is arranged on one side of the mounting seat (1) and used for adjusting the distance between the scrapers (13), a positioning mechanism is arranged on the mounting seat (1) and used for fixing the distance between the scrapers (13), the adjusting mechanism comprises a connecting rod (18), a connecting hole (6) is arranged on one side of the mounting seat (1), the connecting rod (18) is rotatably installed in the connecting hole (6), an installation groove (8) is arranged in the mounting seat (1), the connecting hole (6) is in communication with the installation groove (8), the first circular groove (2) and the second circular groove (4) are in communication with the installation groove (8), and the connecting rod (18) is provided with teeth (19) at the position in the installation groove (8); The positioning mechanism comprises a positioning block (22), a circular hole (7) is arranged above the mounting seat (1), a limiting groove (9) is arranged in the inner portion of the mounting seat (1) above, the positioning block (22) is slidingly installed in the limiting groove (9), and a threaded column (24) is rotatably installed in the limiting groove (9); and the positioning block (22) is threadedly connected to the threaded column (24); Two arc-shaped grooves (23) are arranged below the positioning block (22), and anti-skid washers are arranged in the arc-shaped grooves (23); A first recess (26) is arranged above the threaded column (24), a second recess (28) is arranged at one end of the connecting rod (18), and the first recess (26) and the second recess (28) are both internal hexagonal recesses; The control method comprises the following steps: Step one: firstly, the mounting seat (1) is fixedly installed on a material conveying shell through bolts, so that the two scrapers (13) are located at both sides of a compression roller; Step two: use the hexagonal wrench inserted into the second groove (28) on the connecting rod (18), rotating the connecting rod (18), the connecting rod (18) rotates through the teeth (19) on the connecting rod (18) to drive the first cylindrical rack (14) and the second cylindrical rack (15) movement, thereby driving the two mounting block (11) movement, and then adjust the distance between the two doctor blade (13), so that the two doctor blade (13) and the two sides of the contact wheel contact; Step three: after the doctor blade (13) and the two sides of the contact wheel contact, the hexagonal wrench is inserted into the first groove (26) on the threaded column (24), the threaded column (24) is rotated, the threaded column (24) is rotated to drive the positioning block (22) to descend, the positioning block (22) is lowered to make the arc slot (23) below the positioning block (22) press on the first limiting rod (16) and the second limiting rod (17), so as to fix the distance between the two doctor blade (13).
2. A method of regulating an adjustable doctor positioning assembly according to claim 1, wherein, The lower side of the limiting groove (9) is communicated with a limiting hole (10), a limiting disc (25) is rotatably installed in the limiting hole (10), and one end of the threaded column (24) is fixedly installed on the limiting disc (25).
3. The method of claim 1, wherein, One side of the mounting groove (8) is fixedly installed with a fixed sleeve (20), the connecting rod (18) is provided with a limiting ring (21), and the limiting ring (21) is rotatably connected in the fixed sleeve (20).
4. The method of claim 1, wherein, The mounting seat (1) is Z-shaped, the mounting block (11) is arranged on the top of the mounting seat (1), and two mounting holes (29) are arranged on one side of the bottom of the mounting seat (1).
5. The method of claim 1, wherein, The doctor blade (13) is provided with an adjusting groove (27), and the adjusting groove (27) is screw threadedly installed on the trapezoidal block (12).
Citation Information
Patent Citations
Pipeline reinforcing equipment for hydraulic engineering
CN210423970U
Cutting device
CN214323558U
Side scraper device for dry type granulator
CN214553339U