Granulator

Abstract

The utility model provides a granulator, and relates to the technical field of granulators. The granulator comprises a dustproof mechanism, a rotating assembly and a driving shaft. The driving shaft is sleeved with the rotating assembly, the rotating assembly is rotationally connected with the driving shaft, the dustproof mechanism is arranged at one end of the rotating assembly, the dustproof mechanism is arranged in the circumferential direction of the driving shaft, the dustproof mechanism is connected with the driving shaft so that the driving shaft can drive the dustproof mechanism to rotate relative to the rotating assembly, and the dustproof mechanism is used for preventing impurities from entering the granulator. According to the technical scheme, the impurities are prevented from damaging the interior of the granulator, the impurities are thrown out through the dustproof mechanism, the granulator is prevented from being damaged by the impurities in the using process, the technical problems that in the prior art, the production efficiency of the granulator is reduced, and meanwhile the production cost is increased are solved, and the technical effects of reducing the maintenance cost and guaranteeing the production efficiency of the granulator are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pelletizers, in particular to a pelletizer. Background Art

[0002] At present, world resources are always one of the hot topics of mankind. The slogan of saving resources and protecting the environment has gradually been deeply rooted in people's hearts. Ordinary plastics will not rot even if buried underground for hundreds of years. Therefore, the awakening of recycling and reusing recycled plastics is inevitable. Only in this way can people truly achieve environmental protection and energy saving through the recycling of resources. The biggest advantage of recycled plastics is that they are cheap, and according to different usage needs, only certain properties need to be processed to produce corresponding products. Moreover, plastics are made of petroleum refining products, and petroleum resources are limited. Therefore, recycling and reusing recycled plastics can also save petroleum resources. Recycled plastics refer to plastic raw materials obtained after processing waste plastics by physical or chemical methods such as pretreatment, melt granulation, and modification. It is the reuse of plastics.

[0003] In the prior art, plastics are generally sorted by material, color and other conditions, then washed, put into a pulverizer for crushing, and then put into a pelletizer for pelletizing. However, impurities dropped during the pelletizing process can easily enter the interior of the pelletizer, causing damage to precision parts such as bearings, thus requiring the pelletizer to be repaired, reducing the production efficiency of the pelletizer and increasing production costs. Utility Model Content

[0004] The utility model aims to provide a pelletizer to alleviate the technical problems existing in the prior art of reducing the production efficiency of the pelletizer and increasing the production cost.

[0005] The pelletizer provided by the utility model is used to prevent impurities from damaging the pelletizer, and comprises: a dustproof mechanism, a rotating assembly and a driving shaft;

[0006] The rotating assembly is sleeved on the driving shaft, and the rotating assembly and the driving shaft are rotatably connected. The dustproof mechanism is arranged at one end of the rotating assembly, and the dustproof mechanism is arranged along the circumference of the driving shaft. The dustproof mechanism is connected to the driving shaft so that the driving shaft can drive the dustproof mechanism to rotate relative to the rotating assembly. The dustproof mechanism is used to prevent impurities from entering the pelletizer.

[0007] In an optional embodiment, the dustproof mechanism includes a dustproof ring;

[0008] The dustproof ring is sleeved on the driving shaft, the dustproof ring is connected to the driving shaft, and the dustproof ring rotates relative to the rotating component through the driving shaft, so that the dustproof ring can prevent impurities from entering the pelletizer.

[0009] In an optional embodiment, the dust ring extends along the diameter direction of the drive shaft, and the height of the dust ring decreases in a direction away from the drive shaft.

[0010] In an optional embodiment, the rotating assembly includes a bearing and a rotating body;

[0011] The rotating body is sleeved on the outside of the bearing, the bearing is sleeved on the outside of the driving shaft, and the rotating body is rotatably connected to the driving shaft through the bearing.

[0012] In an optional embodiment, a pelletizing mechanism is also included;

[0013] The pelletizing mechanism is arranged at one end of the rotating body, the dustproof mechanism is arranged between the pelletizing mechanism and the rotating body, the pelletizing mechanism is connected to the driving shaft, and the driving shaft can drive the pelletizing mechanism to rotate relative to the rotating body.

[0014] In an optional embodiment, the dustproof mechanism further includes a first sealing ring and a first dustproof baffle;

[0015] The first dustproof baffle is arranged between the dustproof ring and the rotating body, the first sealing ring is arranged between the first dustproof baffle and the rotating body, the first sealing ring and the first dustproof baffle are both arranged along the circumference of the drive shaft, the first sealing ring and the first dustproof baffle are both slidably connected to the drive shaft, the first dustproof baffle is connected to the rotating body, the first dustproof baffle is used to fix the first sealing ring and prevent impurities from entering the pelletizer, and the first sealing ring is used to prevent impurities from entering the pelletizer.

[0016] In an optional embodiment, the pelletizing mechanism includes a pelletizing knife disc and a pelletizing body;

[0017] A containing groove is arranged in the pelletizing body, and the containing groove is used to contain materials. The pelletizing knife disc is arranged in the containing groove and close to the rotating body. The driving shaft passes through the pelletizing body and extends into the containing groove to be connected with the pelletizing knife disc. The driving shaft is rotatably connected with the pelletizing body so that the driving shaft drives the pelletizing knife disc to rotate relative to the pelletizing body.

[0018] In an optional embodiment, the dustproof mechanism further includes a second sealing ring and a second dustproof baffle;

[0019] The second dustproof baffle is arranged between the dustproof ring and the pelletizing body, the second sealing ring is arranged between the second dustproof baffle and the pelletizing body, the second sealing ring and the second dustproof baffle are both arranged along the circumference of the drive shaft, the second sealing ring and the second dustproof baffle are both slidably connected to the drive shaft, the second dustproof baffle is connected to the pelletizing body, the second dustproof baffle is used to fix the second sealing ring and prevent impurities from leaking out of the pelletizing body, and the second sealing ring is used to prevent impurities from leaking out of the pelletizing body.

[0020] In an optional embodiment, the dust-proof mechanism further includes a gasket;

[0021] The gasket is sleeved on the driving shaft, the gasket is arranged between the second sealing ring and the driving shaft, the gasket is slidably connected to the second sealing ring, the gasket is vertically arranged to the pelletizing knife disc, and one end of the gasket away from the pelletizing knife disc is connected to the dust ring, so that the driving shaft drives the dust ring to rotate through the gasket.

[0022] In an optional embodiment, it also includes a driving mechanism;

[0023] The driving mechanism is connected to one end of the driving shaft, and the driving mechanism can drive the dust-proof mechanism to rotate through the driving shaft.

[0024] The pelletizer provided by the utility model is used to prevent impurities from damaging the pelletizer, and comprises: a dustproof mechanism, a rotating component and a driving shaft; the rotating component is sleeved on the driving shaft, the rotating component and the driving shaft are rotatably connected, the dustproof mechanism is arranged at one end of the rotating component, the dustproof mechanism is arranged along the circumference of the driving shaft, the dustproof mechanism is connected to the driving shaft, so that the driving shaft can drive the dustproof mechanism to rotate relative to the rotating component, the dustproof mechanism is used to prevent impurities from entering the rotating component, avoid the impurities from damaging the inside of the pelletizer, and make the dustproof mechanism throw out the impurities to avoid the rotating component being damaged by the impurities during use, solve the technical problems existing in the prior art of reducing the production efficiency of the pelletizer and increasing the production cost at the same time, and achieve the technical effect of reducing maintenance costs and ensuring the production efficiency of the pelletizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1A schematic cross-sectional structure diagram of a pelletizer provided in an embodiment of the utility model;

[0027] Figure 2 A schematic diagram of the partial cross-sectional structure of a pelletizer provided in an embodiment of the utility model.

[0028] Icons: 100-dustproof mechanism; 110-dustproof ring; 120-first sealing ring; 130-second sealing ring; 140-first dustproof baffle; 150-second dustproof baffle; 160-gasket; 200-rotating assembly; 210-bearing; 220-rotating body; 300-driving shaft; 400-pelletizing mechanism; 410-pelletizing knife disc; 420-pelletizing body; 500-driving mechanism. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0036] like Figure 1-Figure 2 As shown, the pelletizer provided by the embodiment of the utility model may include a dustproof mechanism 100, a rotating assembly 200 and a driving shaft 300. The rotating assembly 200 is sleeved on the driving shaft 300, and the rotating assembly 200 and the driving shaft 300 are rotatably connected. The dustproof mechanism 100 is arranged at one end of the rotating assembly 200, and the dustproof mechanism 100 is arranged along the circumference of the driving shaft 300. The dustproof mechanism 100 is connected to the driving shaft 300 so that the driving shaft 300 can drive the dustproof mechanism 100 to rotate relative to the rotating assembly 200. The dustproof mechanism 100 is used to prevent impurities from entering the pelletizer.

[0037] In this embodiment, a dustproof mechanism 100 is provided at one end of the rotating component 200, the axis of the rotating component 200 coincides with the axis of the driving shaft 300, and the driving shaft 300 is fixedly connected to the dustproof mechanism 100. Furthermore, the driving shaft 300 is cylindrical, and the driving shaft 300 drives the dustproof mechanism 100 to rotate relative to the rotating component 200. At this time, the dustproof mechanism 100 can throw away impurities falling from top to bottom as shown in the figure, thereby preventing the fallen impurities from entering the interior of the rotating component 200 through the gap between the rotating component 200 and the driving shaft 300, thereby preventing the rotating component 200 from being damaged by impurities and affecting the rotation of the rotating component 200, that is, reducing the maintenance time and cost and ensuring the production efficiency of the pelletizer.

[0038] The pelletizer provided by the embodiment of the utility model is used to prevent impurities from damaging the pelletizer, and includes: a dustproof mechanism 100, a rotating assembly 200 and a driving shaft 300. The rotating assembly 200 is sleeved on the driving shaft 300, and the rotating assembly 200 and the driving shaft 300 are rotatably connected. The dustproof mechanism 100 is arranged at one end of the rotating assembly 200, and the dustproof mechanism 100 is arranged along the circumference of the driving shaft 300. The dustproof mechanism 100 is connected to the driving shaft 300 so that the driving shaft 300 can drive the dustproof mechanism 100 to rotate relative to the rotating assembly 200. The dustproof mechanism 100 is used to prevent impurities from entering the rotating assembly 200, thereby preventing impurities from damaging the interior of the pelletizer, and allowing the dustproof mechanism 100 to throw out the impurities to prevent the rotating assembly 200 from being damaged by impurities during use, thereby solving the technical problems of reducing the production efficiency of the pelletizer and increasing the production cost in the prior art, and achieving the technical effect of reducing maintenance costs and ensuring the production efficiency of the pelletizer.

[0039] Optionally, dustproof mechanisms 100 are provided at both ends of the rotating assembly 200 , and the dustproof mechanisms 100 at both ends coincide with the axis of the rotating assembly 200 , and the dustproof mechanisms 100 at both ends are used to prevent impurities from entering the rotating assembly 200 .

[0040] In an optional embodiment, the dustproof mechanism 100 may include a dustproof ring 110. The dustproof ring 110 is sleeved on the drive shaft 300, the dustproof ring 110 is connected to the drive shaft 300, and the dustproof ring 110 rotates relative to the rotating assembly 200 through the drive shaft 300, so that the dustproof ring 110 can prevent impurities from entering the rotating assembly 200. The dustproof ring 110 extends along the diameter direction of the drive shaft 300, and the height of the dustproof ring 110 decreases in the direction away from the drive shaft 300.

[0041] In this embodiment, the cross-section of the dustproof ring 110 is circular, the dustproof ring 110 is arranged in the horizontal direction, and the driving shaft 300 is arranged in the vertical direction, wherein the dustproof ring 110 can be connected to the driving shaft 300 through threads.

[0042] Furthermore, the height of the dust ring 110 at one end close to the drive shaft 300 is greater than the height of the dust ring 110 at one end away from the drive shaft 300, so that impurities above the dust ring 110 move toward the side away from the drive shaft 300 due to gravity, thereby preventing impurities from entering the interior of the rotating assembly 200 from the upper end of the rotating assembly 200.

[0043] Optionally, the dust ring 110 is in the shape of a fan blade and is sleeved on the driving shaft 300. When the driving shaft 300 drives the dust ring 110 to rotate, it fans the rotating component 200 to prevent impurities from falling into the rotating component 200 from above, and at the same time fans away impurities between the rotating component 200 and the dust ring 110.

[0044] In an optional embodiment, the rotating assembly 200 includes a bearing 210 and a rotating body 220; the rotating body 220 is sleeved on the outside of the bearing 210, and the bearing 210 is sleeved on the outside of the driving shaft 300, and the rotating body 220 is rotatably connected to the driving shaft 300 through the bearing 210.

[0045] In this embodiment, a plurality of bearings 210 may be provided, and the axes of the plurality of bearings 210 coincide, and the plurality of bearings 210 are all sleeved on the driving shaft 300, and the rotating body 220 is sleeved on the outer surfaces of the plurality of bearings 210. Specifically, the driving shaft 300 is rotatably connected to the rotating body 220 through the plurality of bearings 210, thereby making the rotation process smoother and making the driving shaft 300 more stable during the rotation process.

[0046] In an optional embodiment, the pelletizer may further include a pelletizer mechanism 400. The pelletizer mechanism 400 is disposed at one end of the rotating body 220, the dustproof mechanism 100 is disposed between the pelletizer mechanism 400 and the rotating body 220, the pelletizer mechanism 400 is connected to the drive shaft 300, the drive shaft 300 can drive the pelletizer mechanism 400 to rotate relative to the rotating body 220, and the pelletizer mechanism 400 includes a pelletizer disc 410 and a pelletizer body 420; a receiving groove is disposed in the pelletizer body 420, the receiving groove is used to accommodate materials, the pelletizer disc 410 is disposed in the receiving groove and is close to the rotating body 220, the drive shaft 300 penetrates the pelletizer body 420 and extends into the receiving groove to be connected to the pelletizer disc 410, and the drive shaft 300 is rotatably connected to the pelletizer body 420, so that the drive shaft 300 drives the pelletizer disc 410 to rotate relative to the pelletizer body 420.

[0047] In this embodiment, the cross-section of the pelletizer disc 410 is circular, and a plurality of pelletizers may be provided on the pelletizer disc 410. The plurality of pelletizers are arranged at intervals along the surface of the pelletizer disc. Furthermore, the pelletizer body 420 is connected to the outer pelletizer frame, and a circular hole is provided at the center line of the pelletizer body 420. The drive shaft 300 passes through the circular hole and is bolted to the pelletizer disc 410. The pelletizer disc 410 is provided at the bottom of the pelletizer body 420, and the other end opposite thereto is provided with an opening to facilitate the entry and exit of materials.

[0048] In an optional embodiment, the dustproof mechanism 100 further includes a first sealing ring 120 and a first dustproof baffle 140; the first dustproof baffle 140 is disposed between the dustproof ring 110 and the rotating body 220, the first sealing ring 120 is disposed between the first dustproof baffle 140 and the rotating body 220, the first sealing ring 120 and the first dustproof baffle 140 are both arranged along the circumference of the driving shaft 300, the first sealing ring 120 and the first dustproof baffle 140 are both slidably connected to the driving shaft 300, the first dustproof baffle 140 is connected to the rotating body 220, the first dustproof baffle 140 is used to fix the first sealing ring 120 and prevent impurities from entering the rotating assembly 200, and the first sealing ring 120 is used to prevent impurities from entering the rotating assembly 200. The dustproof mechanism 100 further includes a second sealing ring 130 and a second dustproof baffle 150. The second dustproof baffle 150 is arranged between the dustproof ring 110 and the pelletizing body 420, the second sealing ring 130 is arranged between the second dustproof baffle 150 and the pelletizing body 420, the second sealing ring 130 and the second dustproof baffle 150 are both arranged along the circumference of the drive shaft 300, the second sealing ring 130 and the second dustproof baffle 150 are both slidingly connected to the drive shaft 300, the second dustproof baffle 150 is connected to the pelletizing body 420, the second dustproof baffle 150 is used to fix the second sealing ring 130 and prevent impurities from leaking out of the pelletizing body 420, and the second sealing ring 130 is used to prevent impurities from leaking out of the pelletizing body 420; the dustproof mechanism 100 also includes a gasket 160. The gasket 160 is sleeved on the drive shaft 300, and the gasket 160 is arranged between the second sealing ring 130 and the drive shaft 300. The gasket 160 is slidably connected to the second sealing ring 130. The gasket 160 is vertically arranged with the pelletizing knife disc 410. The end of the gasket 160 away from the pelletizing knife disc 410 is connected to the dust ring 110, so that the drive shaft 300 drives the dust ring 110 to rotate through the gasket 160.

[0049] In this embodiment, the gasket 160 is arranged at one end of the driving shaft 300 close to the pelletizing body 420, the gasket 160 can be threadedly connected to the driving shaft 300, the dust ring 110 is vertically arranged with the gasket 160, the dust ring 110 and the gasket 160 can be fixed by welding, the first dust baffle 140 and the first sealing ring 120 are arranged on the rotating body 220, wherein the end of the rotating body 220 close to the pelletizing body 420 is provided with a first groove, the first groove is arranged along the circumference of the driving shaft 300, and the first sealing ring 120 is installed in the first groove so that the first sealing ring 120 is rotatably connected to the driving shaft 300, the first dust baffle 140 is connected to the rotating body 220 by bolts, and is arranged on the first groove, the first dust baffle 140 is used to fix the first sealing ring 120, and can also be used to prevent impurities from entering the first groove, and can also prevent impurities from entering the rotating body from the gap between the first sealing ring 120 and the driving shaft 300. 220, further, the second dust baffle 150 and the second sealing ring 130 are arranged on the pelletizing body 420, wherein a second groove is arranged at one end of the pelletizing body 420 close to the rotating body 220, and the second groove is arranged along the circumference of the driving shaft 300, and the second sealing ring 130 is installed in the second groove so that the second sealing ring 130 is rotatably connected to the driving shaft 300, the second dust baffle 150 is connected to the pelletizing body 420 by bolts, and is arranged on the pelletizing body 420, and the second dust baffle 150 is provided with a groove for clamping the second sealing ring 130, that is, the second sealing ring 130 is fixed by the gasket 160, the second dust baffle 150 and the pelletizing knife disc 410, so that the second sealing ring 130 and the second dust baffle 150 are both rotatably connected to the gasket 160, so that impurities generated after cutting in the receiving groove are difficult to enter the rotating body 220, thereby extending the service life of the pelletizer and avoiding frequent maintenance.

[0050] In an optional embodiment, a driving mechanism 500 is further included; the driving mechanism 500 is connected to one end of the driving shaft 300 , and the driving mechanism 500 can drive the dustproof mechanism 100 to rotate through the driving shaft 300 .

[0051] In this embodiment, the driving mechanism 500 can be set as a motor. Furthermore, the end of the driving shaft 300 away from the pelletizing blade 410 is connected to the driving mechanism 500, and the axis of the driving mechanism 500 coincides with the axis of the driving shaft 300. By setting up the driving mechanism 500, the working process is made more labor-saving.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A pelletizer, characterized in that: include: Dust protection mechanisms, rotating components and drive shafts; The rotating component is sleeved on the driving shaft, and the rotating component and the driving shaft are rotatably connected. The dustproof mechanism is arranged at one end of the rotating component, and the dustproof mechanism is arranged along the circumference of the driving shaft. The dustproof mechanism is connected to the driving shaft so that the driving shaft can drive the dustproof mechanism to rotate relative to the rotating component. The dustproof mechanism is used to prevent impurities from entering the rotating component.

2. The pelletizer according to claim 1, characterized in that The dustproof mechanism comprises a dustproof ring; The dustproof ring is sleeved on the driving shaft, the dustproof ring is connected to the driving shaft, and the dustproof ring rotates relative to the rotating component through the driving shaft, so that the dustproof ring can prevent impurities from entering the rotating component.

3. The pelletizer according to claim 2, characterized in that The dustproof ring extends along the diameter direction of the driving shaft, and the height of the dustproof ring decreases along the direction away from the driving shaft.

4. The pelletizer according to claim 2, characterized in that: The rotating assembly includes a bearing and a rotating body; The rotating body is sleeved on the outside of the bearing, the bearing is sleeved on the outside of the driving shaft, and the rotating body is rotatably connected to the driving shaft through the bearing.

5. The pelletizer according to claim 4, characterized in that Also includes a pelletizing mechanism; The pelletizing mechanism is arranged at one end of the rotating body, the dustproof mechanism is arranged between the pelletizing mechanism and the rotating body, the pelletizing mechanism is connected to the driving shaft, and the driving shaft can drive the pelletizing mechanism to rotate relative to the rotating body.

6. The pelletizer according to claim 5, characterized in that The dustproof mechanism also includes a first sealing ring and a first dustproof baffle; The first dustproof baffle is arranged between the dustproof ring and the rotating body, the first sealing ring is arranged between the first dustproof baffle and the rotating body, the first sealing ring and the first dustproof baffle are both arranged along the circumference of the drive shaft, the first sealing ring and the first dustproof baffle are both slidingly connected to the drive shaft, the first dustproof baffle is connected to the rotating body, the first dustproof baffle is used to fix the first sealing ring and prevent impurities from entering the rotating body, and the first sealing ring is used to prevent impurities from entering the rotating component.

7. The pelletizer according to claim 5, characterized in that The pelletizing mechanism comprises a pelletizing knife disc and a pelletizing body; A containing groove is arranged in the pelletizing body, and the containing groove is used to contain materials. The pelletizing knife disc is arranged in the containing groove and close to the rotating body. The driving shaft passes through the pelletizing body and extends into the containing groove to be connected with the pelletizing knife disc. The driving shaft is rotatably connected with the pelletizing body so that the driving shaft drives the pelletizing knife disc to rotate relative to the pelletizing body.

8. The pelletizer according to claim 7, characterized in that The dustproof mechanism also includes a second sealing ring and a second dustproof baffle; The second dustproof baffle is arranged between the dustproof ring and the pelletizing body, the second sealing ring is arranged between the second dustproof baffle and the pelletizing knife disc, the second sealing ring and the second dustproof baffle are both arranged along the circumference of the driving shaft, the second sealing ring and the second dustproof baffle are both slidably connected to the driving shaft, the second dustproof baffle is connected to the pelletizing body, the second dustproof baffle is used to fix the second sealing ring and prevent impurities from leaking from the pelletizing body, and the second sealing ring is used to prevent impurities from leaking from the pelletizing body.

9. The pelletizer according to claim 8, characterized in that The dust-proof mechanism also includes a gasket; The gasket is sleeved on the driving shaft, the gasket is arranged between the second sealing ring and the driving shaft, the gasket is slidably connected to the second sealing ring, the gasket is vertically arranged to the pelletizing knife disc, and one end of the gasket away from the pelletizing knife disc is connected to the dust ring, so that the driving shaft drives the dust ring to rotate through the gasket.

10. The pelletizer according to any one of claims 1 to 9, characterized in that: Also includes a drive mechanism; The driving mechanism is connected to one end of the driving shaft, and the driving mechanism can drive the dust-proof mechanism to rotate through the driving shaft.

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