Pressing device for rotary drum scraper of granulator

Abstract

The utility model relates to the technical field of pelletizers, and discloses a hold-down device for a rotary drum scraper of a pelletizer, the hold-down device comprises a shell and a forming roller, the two sides of the interior of the shell are respectively provided with a storage box, the interior of each storage box is provided with a telescopic scraping piece, and the interior of each storage box is provided with a supporting air bag. A spring in a traditional storage box is changed into the supporting air bag, the supporting air bag is filled with air pressure, the telescopic scraping piece can be jacked and pressed for use through the supporting air bag, the material scraping side of the telescopic scraping piece can deform and move through the supporting air bag when being pressed, and the self fatigue effect of the traditional spring is achieved; the threaded shaft can control the air plug to slide downwards in the communicating pipe, follow-up pressurization is conducted on the supporting air bag, the supporting effect on the telescopic scraping piece is guaranteed, and therefore it is guaranteed that the telescopic scraping piece can conduct matched scraping on the periphery of the forming roller, gaps are avoided, and the cleaning and scraping effect on the periphery of the forming roller is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of granulators, in particular to a pressing device for a rotary drum scraper of a granulator. Background Art

[0002] In the prior art, the basic structure of a rotary granulator is to introduce a high-viscosity molten material containing a certain pressure into a rotating drum. The outer shell of the cylindrical drum has many radial flow channel outlet holes, and the high-viscosity molten material is squeezed out from these flow channel outlet holes and drips into granules.

[0003] However, these highly viscous melts will adhere to the surroundings of the discharge hole, affecting the subsequent extrusion and forming of the materials. Therefore, a scraper will be set to remove the materials adhering to the outer wall of the drum. The end of the existing scraper will press the scraper through an extrusion spring, so that the scraping side of the scraper can fit the rotating roller for scraping. However, when the spring is used for long-term extrusion, fatigue will occur and affect its elasticity, resulting in the scraper being unable to adapt to the extrusion movement, affecting the scraping effect. For this reason, we propose a clamping device for the rotary drum scraper of a granulator. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a pressing device for a rotary drum scraper of a granulator.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a clamping device for a rotating drum scraper of a granulator, comprising a shell and a forming roller, storage boxes are installed on both sides of the interior of the shell, a telescopic scraper is arranged inside the storage box, one side of the telescopic scraper is engaged with the internal limit clamping of the storage box through a scraper main part, the telescopic scraper comprises an assembled scraper main part and a scraper auxiliary part, the scraper main part and the scraper auxiliary part are provided with installation grooves on the corresponding sides, the scraper main part and the scraper auxiliary part are assembled and matched with each other through the installation groove, and a supporting airbag is arranged inside the storage box to support the scraper main part, and the interior of the supporting airbag is filled with air pressure.

[0006] Preferably, a connecting tube connected to the supporting airbag is installed through the top of the storage box and an internal thread is provided on the inner side of the connecting tube. The internal thread of the connecting tube is connected to a threaded shaft, and the internal seal of the connecting tube is provided with an air plug connected to the bottom of the threaded shaft.

[0007] Preferably, when the threaded shaft is rotated, the air plug at the end of the threaded shaft is located inside the connecting pipe and is in a downward moving and pressurized state.

[0008] Preferably, the scraper main part and the scraper auxiliary part are provided with limiting grooves on the side away from each other, and a mounting pad is provided on the inner side of the limiting groove. Limiting clips for locking the scraper main part and the scraper auxiliary part are provided on both sides of the scraper auxiliary part, and the limiting clips are U-shaped structures.

[0009] Preferably, the limit clamp forms a mutual limit locking state with the scraper main part and the scraper auxiliary part through the limit grooves inside the scraper main part and the scraper auxiliary part.

[0010] Preferably, when the limiting clamp is installed and clamped in the limiting groove inside the scraper main component and the scraper auxiliary component, the installation pads inside the limiting groove are in a mutually engaged and squeezed state through the limiting clamp.

[0011] Preferably, a screw hole penetrating the scraper main part is provided at the top of the scraper auxiliary part, and a fixing bolt for fixing the scraper main part and the scraper auxiliary part is installed on the internal thread of the screw hole.

[0012] Beneficial Effects

[0013] The utility model provides a pressing device for a rotary drum scraper of a granulator, which has the following beneficial effects:

[0014] 1. The clamping device for the rotary drum scraper of the granulator, in this article, replaces the spring inside the traditional storage box with a supporting airbag, and the supporting airbag is filled with air pressure. The supporting airbag can be used to press the telescopic scraper itself, and the scraping side of the telescopic scraper can be deformed and moved by the supporting airbag when under pressure, thereby solving the fatigue effect of the traditional spring itself. When the threaded shaft is rotated, the threaded shaft can control the air plug located inside the connecting pipe to slide downward, and the supporting airbag is subsequently pressurized to ensure the support effect provided to the telescopic scraper, thereby ensuring that the telescopic scraper can fit the periphery of the forming roller for scraping, avoiding gaps, and improving the cleaning and scraping effect of the periphery of the forming roller.

[0015] 2. The clamping device for the rotary drum scraper of the granulator, the telescopic scraper is assembled from a scraper main part and a scraper auxiliary part. When the scraper is replaced later, the scraper auxiliary part can be directly disassembled and replaced separately, and the scraper auxiliary part and the scraper main part are docked and matched through the installation groove, and the limit clamp can be inserted into the limit groove inside the scraper main part and the scraper auxiliary part to limit and lock the scraper main part and the scraper auxiliary part, and then the scraper main part and the scraper auxiliary part are threadedly installed through the fixing bolt and the screw hole to fix the scraper main part and the scraper auxiliary part for the second time, and the disassembly is the same. In this way, when the telescopic scraper is replaced, the scraper auxiliary part can be disassembled and replaced separately, thereby achieving the effect of cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A magnified view of middle;

[0020] Figure 3 For this utility model Figure 1 Enlarged view of middle B;

[0021] Figure 4 It is a partial schematic diagram of the telescopic scraper of the utility model;

[0022] Figure 5 For this utility model Figure 1 Enlarged view of C in the middle.

[0023] Legend:

[0024] 1. Shell; 2. Forming roller; 3. Storage box; 4. Telescopic scraper; 5. Scraper main part; 6. Scraper auxiliary part; 7. Installation groove; 8. Limit groove; 9. Limit clamp; 10. Installation pad; 11. Screw hole; 12. Fixing bolt; 13. Support airbag; 14. Connecting pipe; 15. Threaded shaft; 16. Air plug. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment: A clamping device for a rotary drum scraper of a granulator, such as Figure 1-Figure 5 As shown, it includes a shell 1 and a forming roller 2;

[0027] The difference is that storage boxes 3 are installed on both sides of the interior of the shell 1, and a telescopic scraper 4 is arranged inside the storage box 3. One side of the telescopic scraper 4 is engaged with the internal limit clamping of the storage box 3 through a scraper main part 5. The telescopic scraper 4 includes an assembled scraper main part 5 and a scraper auxiliary part 6. The scraper main part 5 and the scraper auxiliary part 6 are provided with installation grooves 7 on the corresponding sides of each other. The scraper main part 5 and the scraper auxiliary part 6 are assembled with each other through the installation grooves 7. The scraper main part 5 and the scraper auxiliary part 6 are provided with a limit groove 8 on the side away from each other, and a mounting pad 10 is arranged on the inner side of the limit groove 8. The scraper auxiliary part 6 is provided with locking means for locking the scraper main part 5 and the scraper auxiliary part 6 on both sides. The limit clamp 9 is a U-shaped structure. A screw hole 11 penetrating the scraper main component 5 is provided on the top of the scraper auxiliary component 6. A fixing bolt 12 for fixing the scraper main component 5 and the scraper auxiliary component 6 is installed on the internal thread of the screw hole 11. A supporting airbag 13 for supporting the scraper main component 5 is provided inside the storage box 3, and the interior of the supporting airbag 13 is filled with air pressure. A connecting pipe 14 connected to the supporting airbag 13 is installed on the top of the storage box 3, and an internal thread is provided on the inner side of the connecting pipe 14. The internal thread of the connecting pipe 14 is connected to a threaded shaft 15, and the internal seal of the connecting pipe 14 is provided with an air plug 16 connected to the bottom of the threaded shaft 15.

[0028] Furthermore, when the threaded shaft 15 is rotated, the air plug 16 at the end of the threaded shaft 15 is located inside the connecting pipe 14 and moves downward to be in a pressurized state.

[0029] Furthermore, the limiting clamp 9 forms a mutual limiting locking state with the scraper main component 5 and the scraper auxiliary component 6 through the limiting grooves 8 inside the scraper main component 5 and the scraper auxiliary component 6.

[0030] Furthermore, when the limiting clamp 9 is installed and clamped in the limiting groove 8 inside the scraper main component 5 and the scraper auxiliary component 6, the mounting pad 10 inside the limiting groove 8 is in a mutually engaged and squeezed state through the limiting clamp 9.

[0031] The working principle of this utility model:

[0032] The storage box 3 is provided with a supporting airbag 13 inside, and the supporting airbag 13 is filled with air pressure, and the supporting airbag 13 can be used to press the telescopic scraper 4 itself, and the scraping side of the telescopic scraper 4 can be deformed and moved through the supporting airbag 13 when under pressure, thereby solving the fatigue effect of the traditional spring itself, and by rotating the threaded shaft 15, the threaded shaft 15 can control the air plug 16 located inside the connecting tube 14 to slide downward, and subsequently pressurize the supporting airbag 13 to ensure the supporting effect provided to the telescopic scraper 4, thereby ensuring that the telescopic scraper 4 can be used to fit the scraper on the periphery of the forming roller 2 to avoid gaps and improve the cleaning and scraping effect of the periphery of the forming roller 2. The telescopic scraper 4 is assembled from a scraper main component 5 and a scraper auxiliary component 6. When the scraper is replaced later, the scraper auxiliary component 6 can be directly disassembled and replaced separately.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pressing device for a rotary drum scraper of a granulator, comprising a housing (1) and a forming roller (2), characterized in that: Storage boxes (3) are installed on both sides of the interior of the shell (1), and a telescopic scraper (4) is arranged inside the storage box (3). One side of the telescopic scraper (4) is engaged with the interior of the storage box (3) through a scraper main part (5). The telescopic scraper (4) includes a scraper main part (5) and a scraper auxiliary part (6) that are assembled and matched. The scraper main part (5) and the scraper auxiliary part (6) are provided with installation grooves (7) on the corresponding sides of each other. The scraper main part (5) and the scraper auxiliary part (6) are assembled and matched with each other through the installation grooves (7). A support airbag (13) is arranged inside the storage box (3) to support the scraper main part (5), and the interior of the support airbag (13) is filled with air pressure.

2. The pressing device for the rotary drum scraper of a granulator according to claim 1, characterized in that: A connecting tube (14) connected to the supporting airbag (13) is installed through the top of the storage box (3), and an internal thread is provided on the inner side of the connecting tube (14); the internal thread of the connecting tube (14) is connected to a threaded shaft (15); and the internal sealing of the connecting tube (14) is provided with an air plug (16) connected to the bottom of the threaded shaft (15).

3. The pressing device for the rotary drum scraper of a granulator according to claim 2, characterized in that: When the threaded shaft (15) is rotated, the air plug (16) at the end of the threaded shaft (15) is located inside the connecting pipe (14) and moves downward to be in a pressurized state.

4. The pressing device for the rotary drum scraper of a granulator according to claim 1, characterized in that: The scraper main part (5) and the scraper auxiliary part (6) are both provided with a limiting groove (8) on the side away from each other, and a mounting pad (10) is arranged inside the limiting groove (8). Limiting clamps (9) for locking the scraper main part (5) and the scraper auxiliary part (6) are arranged on both sides of the scraper auxiliary part (6).

5. The pressing device for the rotary drum scraper of a granulator according to claim 4, characterized in that: The limit clamp (9) forms a mutual limit locking state with the scraper main part (5) and the scraper auxiliary part (6) through the limit groove (8) inside the scraper main part (5) and the scraper auxiliary part (6).

6. The pressing device for the rotary drum scraper of a granulator according to claim 5, characterized in that: When the limiting clamp (9) is installed and clamped in the limiting groove (8) inside the scraper main part (5) and the scraper auxiliary part (6), the installation pad (10) inside the limiting groove (8) is in a mutually engaged and extruded state through the limiting clamp (9).

7. The pressing device for the rotary drum scraper of a granulator according to claim 6, characterized in that: The top of the scraper auxiliary component (6) is provided with a screw hole (11) penetrating the scraper main component (5), and the internal thread of the screw hole (11) is provided with a fixing bolt (12) for fixing the scraper main component (5) and the scraper auxiliary component (6).

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