Environment-friendly granulator

Abstract

The utility model relates to the technical field of plastic recycling equipment, in particular to an environment-friendly granulator which comprises a material support, a granulation device and a cooling device, the granulation device comprises a machine table, an extrusion screw and a driving assembly used for driving the extrusion screw, the machine table is provided with an extrusion cavity and a cutting cavity, and the extrusion screw is rotationally arranged in the extrusion cavity; a cutting assembly is rotationally arranged in the cutting cavity, and the cutting cavity communicates with the cooling assembly. When a PE film needs to be recycled, the material support is used for supporting a PE film roll, then the PE film is fed into the extrusion screw of the granulation device, the extrusion screw is driven by the driving assembly to rotate to extrude the PE film, certain heat is generated through extrusion, the PE film is heated and softened so as to be extruded into a cluster, the clustered PE film enters the cutting cavity and then is cut into a plurality of particles by the cutting assembly, and then the PE film is recycled. And then the granular PE film enters a cooling device to be cooled. The PE film is recycled in a mode of replacing high-temperature melting with extrusion, and no pollution gas is generated in the recycling process.

Description

Technical Field

[0001] The present application relates to the technical field of plastic recycling equipment, and in particular to an environmentally friendly granulator. Background Art

[0002] Plastic granulator is a molding machine that can make materials into specific shapes. It is suitable for the processing and recycling of most waste plastics and is widely used in the industry.

[0003] When granulators are used to process and recycle waste plastic films such as PE films, conventional granulators cut the PE films into pieces, melt them at high temperatures, and then re-extrude and plasticize them for granulation. However, the high-temperature melting and re-granulation method will inevitably change the properties of the PE film and produce a large amount of gas to pollute the environment. Utility Model Content

[0004] In order to improve the problem that the related technology may change the performance of PE film and generate polluted gas, the utility model provides an environmentally friendly granulator.

[0005] An environmentally friendly granulator comprises a material support, a granulating device and a cooling device. The granulating device comprises a machine platform, an extrusion screw and a driving assembly for driving the extrusion screw. The machine platform has an extrusion cavity and a cutting cavity. The extrusion screw is rotatably arranged in the extrusion cavity; a cutting assembly is rotatably arranged in the cutting cavity, and the cutting cavity is connected to the cooling device.

[0006] Furthermore, the cutting assembly includes a cutting knife rotatably arranged in a cutting cavity and a cutting motor for driving the cutting knife, wherein the cutting knife is arranged at the output end of the cutting motor; the machine has a motor accommodating cavity, the motor accommodating cavity is adjacent to the cutting cavity, and the cutting motor is located in the motor accommodating cavity; a plurality of heat dissipation holes are connected above the motor accommodating cavity.

[0007] Furthermore, a material collecting groove is provided below the cutting cavity, and the opening size of the material collecting groove gradually decreases from one end close to the cutting cavity to one end far from the cutting cavity; the material collecting groove is connected to a connecting pipe, and the connecting pipe connects the material collecting groove and the cooling device.

[0008] Furthermore, the cooling device includes a first cooling component and a second cooling component arranged in sequence; the first cooling component includes a first cooling box and a first cooling pipe arranged in the first cooling box, and a first negative pressure part is arranged in the first cooling pipe; the structure of the second cooling component is the same as that of the first cooling component, and the first cooling component is connected to the second cooling component.

[0009] Furthermore, it also includes a material unloading device, which includes a material unloading component connected to the second cooling component, and the material unloading component includes a material unloading bracket and a material unloading barrel arranged on the material unloading bracket, and the material unloading barrel has a material unloading port.

[0010] Furthermore, the machine has a feed inlet connected to the extrusion cavity, and the feed inlet is provided with an extended feed plate toward the material support; the size of the extended feed plate gradually decreases from one end toward the material support to one end away from the material support.

[0011] The utility model has the following advantages:

[0012] 1. The utility model is an environmentally friendly granulator. When the PE film needs to be recycled, the material support is used to support the PE film roll, and then the PE film is fed into the extrusion screw of the granulation device. The extrusion screw rotates under the drive of the driving component to squeeze the PE film. The extrusion generates a certain amount of heat, and the PE film is softened by the heat and squeezed into a ball. The balled PE film enters the cutting chamber and is cut into a number of material particles by the cutting component. The granular PE film then enters the cooling device for cooling. The present application recycles the PE film by extrusion instead of high-temperature melting. During the recycling process, on the one hand, no polluting gas is generated, and on the other hand, the performance of the PE film can be avoided from being changed.

[0013] 2. The utility model is an environmentally friendly granulator, which is provided with a first cooling component and a second cooling component after granulation, and can quickly cool the material particles formed by extrusion and cutting, realize rapid granulation, and thus effectively increase the granulation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic structural diagram of an environmentally friendly granulator according to an embodiment of the present application;

[0016] Figure 2 for Figure 1 A partial enlarged schematic diagram of part A;

[0017] Figure 3 for Figure 1 A schematic cross-sectional view of the machine;

[0018] Figure 4 for Figure 3 A partial enlarged schematic diagram of part B;

[0019] Figure 5 Schematic diagram of the internal structure of the cooling device.

[0020] Description of reference numerals:

[0021] 1. Material support; 2. Granulating device; 21. Machine; 211. Extrusion cavity; 212. Cutting cavity; 2121. Aggregation trough; 213. Motor accommodating cavity; 214. Feeding port; 215. Connecting pipe; 216. Extrusion through hole; 22. Extrusion screw; 23. Driving assembly; 231. Driving motor; 24. Cutting assembly; 241. Cutting motor; 25. Extended feed plate; 3. Cooling device; 31. First cooling assembly; 311. First cooling box; 312. First cooling pipe; 32. Second cooling assembly; 4. Unloading device; 41. Unloading assembly; 411. Unloading support; 412. Unloading barrel; 4121. Unloading port. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than 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 may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] Reference Figure 1 and Figure 2 An environmentally friendly granulator includes a material support 1, a granulating device 2 and a cooling device 3. The material support 1 is used to support the material or raw material to be recycled, the granulating device 2 is used to recycle and granulate the material or raw material, and the cooling device 3 is used to cool and shape the material particles formed by granulation.

[0029] Specifically, the material support 1 is arranged at one side of the granulation device 2. The material support 1 has a plurality of support rods for supporting the material. The material to be recycled is placed on the material support 1 and continuously fed into the granulation device 2 for recycling.

[0030] Reference Figures 1 to 3The granulating device 2 includes a machine table 21, an extrusion screw 22 disposed in the machine table 21, and a driving assembly 23 for driving the extrusion screw 22. A control console is provided on one side of the machine table 21. The machine table 21 has a feed port 214, which faces the material support 1 to facilitate feeding. At the same time, the feed port 214 is provided with an extended feed plate 25 facing the material support 1, and the size of the extended feed plate 25 gradually decreases from the end facing the material support 1 to the end away from the material support 1. By providing the feed plate, a large amount of material can be supported and gathered, so that it can be more conveniently fed into the feed port 214.

[0031] Reference Figure 3 and Figure 4 In order to install the extrusion screw 22, the machine 21 has an extrusion cavity 211, which extends horizontally along the length direction of the machine 21, and the feed inlet 214 is connected to the extrusion cavity 211. The extrusion screw 22 is rotatably arranged in the extrusion cavity 211. The driving component 23 includes a driving motor 231 arranged on one side of the machine 21, and the output shaft of the driving motor 231 is connected to the extrusion screw 22 through a chain drive to drive the extrusion screw 22 to rotate. It can be understood that the extrusion screw 22 can also be driven to rotate through a belt drive or a gear drive. When the material enters from the feed port 214, the continuously rotating extrusion screw 22 will extrude the material, and the extrusion generates a certain amount of heat to heat up and soften the material, so that the material is agglomerated and extruded from the extrusion screw 22 in the form of strips. The outlet of the extrusion cavity 211 has a number of small extrusion holes 216. The strip material is driven by the extrusion screw 22 to pass through these small extrusion holes 216 and is divided into a number of thin strips with smaller diameters, so as to facilitate the subsequent cutting. Compared with high-temperature melting, the heat generated by extrusion is lower and is not enough to change the performance of the PE film. At the same time, the form of extrusion does not produce polluting gases and is environmentally friendly.

[0032] One side of the extrusion cavity 211 is connected to a cutting cavity 212, and the cutting cavity 212 is connected to cooling. After the material is extruded from the extrusion screw 22, it will enter the cutting cavity 212, and a cutting assembly 24 for pelletizing the material is rotatably arranged in the cutting cavity 212. In this embodiment, the cutting assembly 24 includes a cutting knife (not shown in the figure) rotatably arranged in the cutting cavity 212 and a cutting motor 241 for driving the cutting knife. The cutting knife is arranged at the output end of the cutting motor 241, and the cutting knife faces the extrusion screw 22. The cutting knife can specifically be a plurality of blades. When the material in the form of thin strips is extruded from the extrusion screw 22, it will continuously move toward the cutting knife, and the cutting knife will continuously rotate under the drive of the cutting motor 241, thereby cutting the material and cutting the material into a plurality of particles. A glass-covered observation hole is arranged above the cutting cavity 212, and the cutting situation can be observed through the observation hole.

[0033] The cutting motor 241 generates a lot of heat when it is running. In order to prevent the cutting motor 241 from affecting the material, the machine 21 has a motor accommodating chamber 213, which is adjacent to the cutting chamber 212. The cutting motor 241 is located in the motor accommodating chamber 213. A plurality of heat dissipation holes are connected above the motor accommodating chamber 213. By providing the motor accommodating chamber 213, the heat of the cutting motor 241 can be dissipated in time through the heat dissipation holes, while avoiding affecting the granular material.

[0034] A material collecting groove 2121 is provided below the cutting cavity 212, and the opening size of the material collecting groove 2121 gradually decreases from one end close to the cutting cavity 212 to the end away from the cutting cavity 212. The material collecting groove 2121 is connected to a connecting pipe 215, and the connecting pipe 215 connects the material collecting groove 2121 and the cooling device 3. When the material is cut into particles, it will fall into the material collecting groove 2121 and gather, and then be sent to the cooling device 3 for cooling.

[0035] Reference Figure 1 and Figure 5 The cooling device 3 includes a first cooling component 31 and a second cooling component 32 which are arranged in sequence, and the first cooling component 31 is connected to the second cooling component 32. Specifically, the first cooling component 31 includes a first cooling box 311 and a first cooling pipe 312 which is arranged in the first cooling box 311, and the first cooling pipe 312 is arranged vertically. A first negative pressure member is arranged in the first cooling pipe 312, and the first negative pressure member is used to generate negative pressure in the first cooling pipe 312, so that the material particles are input into the first cooling component 31 from the connecting pipe 215. In this embodiment, the first negative pressure member is a negative pressure fan which is rotatably connected to the first cooling pipe 312. The negative pressure fan is connected to the outside and has a filter to prevent the material particles from overflowing from the first cooling pipe. Under the action of the negative pressure fan, negative pressure can be achieved on the one hand, and cooling can be achieved on the other hand.

[0036] The structure of the second cooling assembly 32 is the same as that of the first cooling assembly 31. The first cooling assembly 31 is connected to the second cooling assembly 32 through a pipeline. After passing through the first cooling assembly 31, the material particles will enter the second cooling assembly 32 for cooling again. In addition, the environmentally friendly granulator also includes a feeding device 4, which includes a feeding device 41 connected to the second cooling assembly 32. The feeding device 41 includes a feeding support 411 and a feeding barrel 412 arranged on the feeding support 411. The feeding barrel 412 is connected to the second cooling assembly 32 through a pipeline. A negative pressure piece is arranged in the feeding barrel 412. The bottom of the feeding barrel 412 has a feeding port 4121. After passing through the second cooling assembly 32, the material enters the feeding barrel 412 and is discharged from the feeding port 4121.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0038] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An environmentally friendly granulator, characterized in that: The invention comprises a material support (1), a granulating device (2) and a cooling device (3); the granulating device (2) comprises a machine platform (21), an extruding screw (22) and a driving assembly (23) for driving the extruding screw (22); the machine platform (21) has an extruding cavity (211) and a cutting cavity (212); the extruding screw (22) is rotatably arranged in the extruding cavity (211); a cutting assembly (24) is rotatably arranged in the cutting cavity (212); and the cutting cavity (212) is connected to the cooling device (3).

2. The environmentally friendly granulator according to claim 1, characterized in that: The cutting assembly (24) comprises a cutting knife rotatably arranged in a cutting cavity (212) and a cutting motor (241) for driving the cutting knife, wherein the cutting knife is arranged at the output end of the cutting motor (241); the machine platform (21) has a motor accommodating cavity (213), the motor accommodating cavity (213) is adjacent to the cutting cavity (212), and the cutting motor (241) is located in the motor accommodating cavity (213); and a plurality of heat dissipation holes are connected above the motor accommodating cavity (213).

3. An environmentally friendly granulator according to claim 1 or 2, characterized in that: A material collecting groove (2121) is provided below the material cutting cavity (212), and the opening size of the material collecting groove (2121) gradually decreases from an end close to the material cutting cavity (212) to an end away from the material cutting cavity (212); the material collecting groove (2121) is connected to a connecting pipe (215), and the connecting pipe (215) connects the material collecting groove (2121) and the cooling device (3).

4. The environmentally friendly granulator according to claim 3, characterized in that: The cooling device (3) comprises a first cooling component (31) and a second cooling component (32) which are arranged in sequence; the first cooling component (31) comprises a first cooling box (311) and a first cooling pipe (312) arranged in the first cooling box (311), and a first negative pressure piece is arranged in the first cooling pipe (312); the structure of the second cooling component (32) is the same as that of the first cooling component (31), and the first cooling component (31) is connected to the second cooling component (32).

5. The environmentally friendly granulator according to claim 4, characterized in that: The invention also includes a material discharge device (4), wherein the material discharge device (4) includes a material discharge component (41) connected to the second cooling component (32), wherein the material discharge component (41) includes a material discharge bracket (411) and a material discharge barrel (412) arranged on the material discharge bracket (411), and the material discharge barrel (412) has a material discharge port (4121).

6. The environmentally friendly granulator according to claim 1, characterized in that: The machine platform (21) has an inlet (214) connected to the extrusion cavity (211), and the inlet (214) is provided with an extended inlet plate (25) toward the material support (1); the size of the extended inlet plate (25) gradually decreases from an end facing the material support (1) to an end away from the material support (1).

Images