Granulation cutting mechanism for granulation production

Abstract

The utility model discloses a pelletizing mechanism for pelletizing production, which comprises a driving component and a cutting component, and the output end of the driving component is in driving connection with the input end of the cutting component; the cutting assembly comprises a mounting base, a main shaft and a cutter. The driving assembly is connected to the surface of one side of the mounting base. One end of the spindle is connected to the output end of the driving assembly through the mounting seat; the other end of the spindle is connected with the cutter; the cutter comprises a transmission assembly and a plurality of blades, one end of the transmission assembly is connected to the end, facing the blades, of the main shaft, and the blades are arranged on the side surface of the transmission assembly and arranged in the circumferential direction of the side surface of the transmission assembly at equal intervals. Each blade is connected to the transmission assembly through a cutter bar, and each cutter bar is connected to the side surface of the transmission assembly in the radial direction of the transmission assembly. According to the cutter, the stress direction of the blade is changed, lateral force application of the driving assembly to the blade is avoided, and therefore the probability that the blade is twisted in the cutting process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of granulation equipment, in particular to a granulation mechanism for granulation production. Background Art

[0002] There are many types of granulator cutter structures, and the specific selection depends on the characteristics of the processed materials, the requirements of the production process, and the equipment design. The granulation mechanism usually includes several common types of granulator cutter structures: Rotary cutter disc type cutter: This type of cutter is usually installed on a rotating cutter disc. When the cutter disc rotates, it drives the blades to cut the materials, and it is suitable for granulation of most plastics and rubbers; Fixed cutter rack type cutter: The blades are fixed on the cutter rack, and the materials are cut when passing through the cutter rack, which is suitable for cutting fibrous or strip-shaped materials; Combined rotary and fixed cutter type cutter: Adopts a design of mutual cooperation between the rotary cutter and the fixed cutter. The rotary blade cuts the materials, and the fixed blade provides support and auxiliary cutting, improving the cutting accuracy and efficiency, and is suitable for a variety of materials; Hob type cutter: Adopts multiple circular hobs, and the hobs cut the materials into particles by rotation, which is suitable for applications requiring high-precision cutting, such as the food and pharmaceutical industries; Linear blade type cutter: Adopts a linear blade, which is suitable for cutting harder or thicker materials, and is usually used for granulation of heavy plastics and rubbers; Shearing blade type cutter: Adopts a blade based on the shearing principle, similar to the working mode of scissors, and a shearing force is generated between the blades to cut the materials, which is suitable for cutting flexible materials and high-viscosity materials; Chip cutter type cutter: Adopts multiple parallel sheet-shaped blades, and the materials are cut into particles when passing through, and is commonly used for granulation of wood, plastics and rubbers; Impact blade type cutter: The blade generates an impact force through high-speed rotation, hitting and cutting the materials, which is suitable for materials with higher hardness; Water-cooled cutter: There is a water-cooling system around the cutter, which can reduce the temperature during the cutting process to prevent the materials from overheating, and is suitable for temperature-sensitive materials. Each cutter structure has its specific application scenarios, advantages and disadvantages. Selecting the appropriate cutter structure needs to be comprehensively considered according to the characteristics of the materials, the production process and the equipment requirements.

[0003] For the traditional rotary cutter disc type cutter, the blade is directly connected to the transmission component, and the driving component applies a lateral force to the blade. The blade is prone to torsion during the cutting process, which further increases the frequency of cutter maintenance and repair, and the service life of the cutter is relatively short. Content of the Utility Model

[0004] Based on this, in view of the technical problem that the service life of the cutter of the existing granulation mechanism is relatively short, it is necessary to provide a granulation mechanism for granulation production.

[0005] A pelletizing mechanism for granulation production, the pelletizing mechanism for granulation production includes a driving component and a cutting component. The output end of the driving component is drivingly connected to the input end of the cutting component, and the output end of the cutting component can be cooperatively connected to a matching granulator to cooperate with the granulator to complete the extrusion and pelletizing process to complete the production process of pellets.

[0006] The cutting component includes a mounting seat, a main shaft, and cutting blades. The mounting seat is arranged between the driving component and the cutting blades, and the driving component is connected to one side surface of the mounting seat; one end of the main shaft is connected to the output end of the driving component through the mounting seat, and the other end of the main shaft is connected to the cutting blades. Thus, the driving component can drive the cutting blades to rotate relative to the mounting seat at a preset speed through the main shaft.

[0007] The cutting blades include a transmission component and a plurality of blades. One end of the transmission component is connected to the end of the main shaft facing the blades, and the plurality of blades are arranged on the side surface of the transmission component. Moreover, the plurality of blades are arranged at equal intervals along the circumferential direction of the side surface of the transmission component; each blade is connected to the transmission component through a blade rod, wherein each blade rod is connected to the side surface of the transmission component along the radial direction of the transmission component.

[0008] In one embodiment, the above-mentioned plurality of blade rods extend radially outward with the geometric center of the transmission component as the center.

[0009] In one embodiment, each of the above-mentioned blades is vertically connected to the corresponding blade rod along the tangent direction of the rotation trajectory of the transmission component.

[0010] In one embodiment, each of the above-mentioned blades is arranged in a flat plate-like structure. One end of each blade is connected to the side surface of the corresponding blade rod, and the other end of each blade deflects a preset angle in the direction away from the driving component relative to the rotation plane of the blade rod and extends a preset distance to form a blade edge.

[0011] In one embodiment, each of the above-mentioned blades is provided with a relief groove, and the relief groove penetrates through the surface of the blade.

[0012] In one embodiment, the above-mentioned transmission component includes a cutter shaft, a cutter shaft sleeve, a bearing component, and a coupling cover plate. One end of the cutter shaft is connected to the main shaft; the cutter shaft sleeve is sleeved on the side surface of the cutter shaft, and the outer surface of the side wall of the cutter shaft sleeve is connected with a plurality of blade rods; the bearing component is embedded in the interior of the cutter shaft sleeve and sleeved on the side surface of the cutter shaft to ensure that the cutter shaft sleeve can rotate relative to the cutter shaft; the coupling cover plate is cooperatively connected to one end of the cutter shaft sleeve facing the mounting seat to enclose the bearing component inside the cutter shaft sleeve, and the coupling cover plate is connected to the main shaft.

[0013] In one embodiment, the above-mentioned bearing component includes two bearings and a bearing spacer. The bearing spacer is arranged between the two bearings, and the two bearings can improve the rotational stability of the cutter shaft.

[0014] In one embodiment, the above-mentioned bearing assembly further includes two oil seals, which are respectively arranged on the opposite sides of the two bearings, so as to improve the sealing performance inside the cutter shaft sleeve.

[0015] In one embodiment, the above-mentioned driving assembly includes a motor and a speed reducer. The output end of the motor is drivingly connected to the input end of the speed reducer. The speed reducer is connected to the mounting seat, and the output end of the speed reducer is drivingly connected to the main shaft through the mounting seat.

[0016] In one embodiment, the above-mentioned granulation production pelletizing mechanism further includes an outer cover body, which is sleeved outside the cutting assembly and connected to the mounting seat.

[0017] The cutter of the above-mentioned granulation production pelletizing mechanism includes a transmission assembly and a plurality of blades. One end of the transmission assembly is connected to one end of the main shaft facing the blades. The plurality of blades are arranged on the side surface of the transmission assembly, and the plurality of blades are arranged at equal intervals along the circumferential direction of the side surface of the transmission assembly, while balancing the overall center of the cutter and ensuring the cutting efficiency of each cutter on the material; each blade is connected to the transmission assembly through a knife rod. Among them, each knife rod is connected to the side surface of the transmission assembly along the radial direction of the transmission assembly. Compared with the traditional cutter in which the blade is directly connected to the transmission assembly, the cutter of the present invention changes the force direction of the blade, avoids the lateral force applied by the driving assembly to the blade, thereby reducing the probability of the blade twisting during the cutting process, and further reducing the maintenance and repair frequency of the cutter and prolonging the service life of the cutter. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a granulation production pelletizing mechanism in one embodiment;

[0019] Figure 2 It is a partial exploded structural diagram of a granulation production pelletizing mechanism in one embodiment;

[0020] Figure 3 It is a schematic structural diagram of a granulation production pelletizing mechanism in one embodiment;

[0021] Figure 4 For Figure 3 It is a schematic cross-sectional structure diagram of A-A of the granulation production pelletizing mechanism in the shown embodiment. Detailed Embodiments

[0022] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following describes the specific embodiments of the present utility model in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0025] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0028] Please refer to Figures 1 to 4, the present utility model discloses a granulation production cutting mechanism 10. The granulation production cutting mechanism 10 includes a driving assembly 100 and a cutting assembly 200. The output end of the driving assembly 100 is drivingly connected to the input end of the cutting assembly 200. The output end of the cutting assembly 200 can be cooperatively connected with a matching granulator to cooperate with the granulator to complete the production process of extruding and cutting to complete the production of pellets. Among them, the cutting assembly 200 includes a mounting base 210, a main shaft 220 and a cutting knife 230. The mounting base 210 is arranged between the driving assembly 100 and the cutting knife 230. The driving assembly 100 is connected to one side surface of the mounting base 210. One end of the main shaft 220 is connected to the output end of the driving assembly 100 through the mounting base 210, and the other end of the main shaft 220 is connected to the cutting knife 230. Thus, the driving assembly 100 can drive the cutting knife 230 to rotate relative to the mounting base 210 at a preset speed through the main shaft 220. When one end of the mounting base 210 facing the cutting knife 230 is cooperatively connected to the output end of the matching granulator, the cutting knife 230 can cut the material output by the extrusion mechanism, thereby completing the cutting action. Specifically, the cutting knife 230 includes a transmission assembly 231 and a plurality of blades 232. One end of the transmission assembly 231 is connected to one end of the main shaft 220 facing the blades 232. The plurality of blades 232 are arranged on the side surface of the transmission assembly 231. And the plurality of blades 232 are arranged at equal intervals in the circumferential direction on the side surface of the transmission assembly 231, while balancing the overall center of the cutting knife 230 and ensuring the cutting efficiency of each cutting knife 230 for the material; each blade 232 is connected to the transmission assembly 231 through a knife rod 233. Among them, each knife rod 233 is connected to the side surface of the transmission assembly 231 along the radial direction of the transmission assembly 231, that is, the plurality of knife rods 233 extend radially outward with the geometric center of the transmission assembly 231 as the center. Based on this, each blade 232 is vertically connected to the corresponding knife rod 233 along the tangent direction of the rotation trajectory of the transmission assembly 231, so that each blade 232 always cuts the material along the tangent direction of its own movement trajectory during the granulation process. Compared with the cutting knife 230 in which the traditional blade 232 is directly connected to the transmission assembly 231, the cutting knife 230 of the present utility model changes the force application direction of the blade 232, avoids the lateral force applied by the driving assembly 100 to the blade 232, thereby reducing the probability of the blade 232 twisting during the cutting process, and further reducing the maintenance and repair frequency of the cutting knife 230 and extending the service life of the cutting knife 230.

[0029] Further, each blade 232 is arranged as a flat plate-like structure. One end of each blade 232 is connected to the side surface of the corresponding cutter bar 233. The other end of each blade 232 deflects a preset angle in a direction away from the driving assembly 100 relative to the rotation plane of the cutter bar 233 and extends a preset distance to form the cutting edge of the blade 232. Thus, the cutting edge of each blade 232 can be matched with the output end of the extrusion mechanism of the granulator during the actual assembly process to quickly cut the material and ensure the consistency of the product form. Specifically, each blade 232 is provided with an avoidance groove a, and the avoidance groove a penetrates through the surface of the blade 232, so as to avoid the pellets generated by the cutting of the blade 232 and accelerate the discharge of the pellets.

[0030] Further, the transmission assembly 231 includes a cutter shaft 2311, a cutter shaft sleeve 2312, a bearing assembly 2313 and a coupling cover plate 2314. One end of the cutter shaft 2311 is connected to the main shaft 220; the cutter shaft sleeve 2312 is sleeved on the side surface of the cutter shaft 2311, and several cutter bars 233 are connected to the outer surface of the side wall of the cutter shaft sleeve 2312; the bearing assembly 2313 is fitted inside the cutter shaft sleeve 2312 and sleeved on the side surface of the cutter shaft 2311, so as to ensure that the cutter shaft sleeve 2312 can rotate relative to the cutter shaft 2311; the coupling cover plate 2314 is cooperatively connected to one end of the cutter shaft sleeve 2312 facing the mounting seat 210 to enclose the bearing assembly 2313 inside the cutter shaft sleeve 2312, and the coupling cover plate 2314 is connected to the main shaft 220. In practical applications, the driving assembly 100 drives the cutter shaft sleeve 2312 to rotate relative to the cutter shaft 2311 at a preset speed through the main shaft 220, so as to drive several blades 232 to cut the material output by the extrusion mechanism. In one embodiment, the bearing assembly 2313 includes two bearings 23131 and a bearing spacer 23132. The bearing spacer 23132 is arranged between the two bearings 23131, and the two bearings 23131 can improve the rotational stability of the cutter shaft 2311. In another embodiment, the bearing assembly 2313 further includes two oil seals 23133, and the two oil seals 23133 are respectively arranged on the opposite sides of the two bearings 23131, so as to improve the sealing performance inside the cutter shaft sleeve 2312.

[0031] Further, the driving assembly 100 includes a motor 110 and a speed reducer 120. The output end of the motor 110 is drivingly connected to the input end of the speed reducer 120. The speed reducer 120 is connected to the mounting seat 210, and the output end of the speed reducer 120 is drivingly connected to the main shaft 220 through the mounting seat 210. Thus, the motor 110 drives several blades 232 to rotate relative to the mounting seat 210 at a preset speed in sequence through the speed reducer 120, the main shaft 220 and the cutter shaft sleeve 2312 to cut the material output by the adapted extrusion mechanism.

[0032] Furthermore, the granulation cutting mechanism 10 for granulation production further includes an outer housing 300. The outer housing 300 is sleeved outside the cutting assembly 200 and connected to the mounting base 210. Thus, the outer housing 300 can form a material guiding cavity to receive and guide the granulated materials after granulation, facilitating the discharging of the granulated materials.

[0033] In summary, the cutting knife of the granulation cutting mechanism disclosed by the present utility model includes a transmission assembly and a plurality of blades. One end of the transmission assembly is connected to one end of the main shaft facing the blades. The plurality of blades are arranged on the side surface of the transmission assembly, and the plurality of blades are arranged at equal intervals in the circumferential direction of the side surface of the transmission assembly, while balancing the overall center of the cutting knife and ensuring the cutting efficiency of each cutting knife on the material; each blade is connected to the transmission assembly through a knife rod. Among them, each knife rod is connected to the side surface of the transmission assembly along the radial direction of the transmission assembly, that is, the plurality of knife rods extend radially outward with the geometric center of the transmission assembly as the center. Based on this, each blade is vertically connected to the corresponding knife rod along the tangent direction of the rotation trajectory of the transmission assembly, so that each blade always cuts the material along the tangent direction of its own movement trajectory during the granulation process. Compared with the cutting knife in which the blade is directly connected to the transmission assembly in the traditional way, the cutting knife of the present utility model changes the force application direction of the blade, avoids the lateral force applied by the driving assembly to the blade, thereby reducing the probability of the blade twisting during the cutting process, further reducing the maintenance and repair frequency of the cutting knife, and prolonging the service life of the cutting knife.

[0034] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0035] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A pelletizing mechanism for granulation production, characterized in that: include: A driving component and a cutting component, wherein the output end of the driving component is drivingly connected to the input end of the cutting component; The cutting assembly comprises a mounting seat, a main shaft and a cutter, wherein the mounting seat is arranged between the driving assembly and the cutter, and the driving assembly is connected to a side surface of the mounting seat; One end of the main shaft is connected to the output end of the driving assembly through the mounting seat, and the other end of the main shaft is connected to the cutter; The cutter includes a transmission assembly and a plurality of blades, one end of the transmission assembly is connected to an end of the main shaft facing the blade, the plurality of blades are arranged on the side surface of the transmission assembly, and the plurality of blades are arranged equidistantly along the circumference of the side surface of the transmission assembly; each of the blades is connected to the transmission assembly via a knife rod, wherein each of the knife rods is connected to the side surface of the transmission assembly along the radial direction of the transmission assembly.

2. The pelletizing mechanism for pelletizing production according to claim 1, characterized in that: The plurality of knife rods are radially extended outwards with the geometric center of the transmission assembly as the center.

3. The pelletizing mechanism for pelletizing production according to claim 2, characterized in that: Each of the blades is vertically connected to the corresponding blade rod along the tangent direction of the rotation trajectory of the transmission component.

4. The pelletizing mechanism for granulation production according to claim 3, characterized in that: Each of the blades is configured as a straight plate-like structure, one end of each of the blades is connected to the side surface of the corresponding blade rod, and the other end of each of the blades is deflected by a preset angle relative to the rotation plane of the blade rod in a direction away from the drive assembly and extends a preset distance to form the cutting edge of the blade.

5. The pelletizing mechanism for pelletizing production according to claim 4, characterized in that: Each of the blades is provided with an avoidance groove, and the avoidance groove is arranged through the surface of the blade.

6. The pelletizing mechanism for pelletizing production according to claim 5, characterized in that: The transmission assembly includes a cutter shaft, a cutter shaft sleeve, a bearing assembly and a coupling cover plate. One end of the cutter shaft is connected to the main shaft. The cutter shaft sleeve is sleeved on the side surface of the cutter shaft, and the outer surface of the side wall of the cutter shaft sleeve is connected to a plurality of the cutter rods. The bearing assembly is embedded in the interior of the cutter shaft sleeve and sleeved on the side surface of the cutter shaft. The coupling cover plate is cooperatively connected to one end of the cutter shaft sleeve facing the mounting seat, and the coupling cover plate is connected to the main shaft.

7. The pelletizing mechanism for pelletizing production according to claim 6, characterized in that: The bearing assembly includes two bearings and a bearing spacer, and the bearing spacer is arranged between the two bearings.

8. The pelletizing mechanism for pelletizing production according to claim 7, characterized in that: The bearing assembly also includes two oil seals, which are respectively arranged on opposite sides of the two bearings.

9. The pelletizing mechanism for pelletizing production according to claim 8, characterized in that: The driving assembly includes a motor and a reducer, the output end of the motor is drivingly connected to the input end of the reducer, the reducer is connected to the mounting seat, and the output end of the reducer is drivingly connected to the main shaft through the mounting seat.

10. The pelletizing mechanism for pelletizing production according to claim 9, characterized in that: The pelletizing mechanism for pelletizing production further comprises an outer cover, which is sleeved on the outside of the cutting assembly and connected to the mounting seat.

Images