Plastic granulator convenient to cut

Abstract

The invention relates to the technical field of plastic granulation, and discloses a convenient-to-cut plastic granulator which comprises a conveying device, the top of the conveying device is fixedly connected with a feeding port, the rear side of the conveying device is fixedly connected with a motor, the front end of the conveying device is fixedly connected with a first connecting pipe, and the first connecting pipe is fixedly connected with a second connecting pipe. And the outer wall of the connecting pipe I is fixedly connected with a heating pipe. By arranging the granule discharging mechanism, a traditional horizontal discharging mode is changed into a vertical downward discharging structure, and compared with transverse splashing of granules caused by traditional horizontal discharging, the vertical guiding discharging mode effectively avoids collision and adhesion of the granules extruded in different time periods in the horizontal direction; meanwhile, the particles are rapidly separated from the area below the granulation net under the action of gravity, the risk that the bottom granulation net is secondarily blocked by the falling particles is avoided, the particle breakage rate and the agglomeration phenomenon are reduced, it is ensured that the granulation net is always kept clean and smooth, and the continuous operation stability of equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic granulation, in particular to a plastic granulator which is convenient for cutting. Background Art

[0002] In industrial production, it is often necessary to process plastics to form them into granules. At this time, a plastic granulator is needed. The emergence of plastic granulators facilitates industrial production. When the equipment is in use, it is necessary to ensure that the plastic granules can meet the factory standards.

[0003] The patent application with application number CN202420990759.8 discloses a plastic granulator that is easy to cut, comprising a base, a processing and forming cylinder fixedly connected to the top of the base, a feed hopper fixedly connected to the left side of the top of the processing and forming cylinder, a conveying mechanism provided in the processing and forming cylinder, and a cutting mechanism provided on the right side of the conveying mechanism. The plastic granulator that is easy to cut can achieve the purpose of installing and disassembling the molded parts through the provided cutting mechanism. By providing molded parts that are easy to install and disassemble, when the molded parts are blocked, they can be disassembled and unblocked in time, ensuring the purpose of granulating the recycled plastic in the later stage. Moreover, under the rotation of the three cutting tools, the purpose of quickly granulating the recycled plastic can be achieved. At the same time, the three cutting tools rotate at the center of the molded parts, which can achieve the purpose of conveniently cutting the recycled plastic.

[0004] During operation, existing plastic pelletizing equipment typically delivers molten plastic to the front end of the equipment, where it is extruded through a pelletizing screen to form strips, which are then cut into pellets by a cutting blade. However, as the high-temperature molten plastic passes through the pelletizing screen, it can easily form a solidified layer on the screen surface and within its pores due to factors such as uneven flow rate and residual impurities. This can lead to mesh clogging. This phenomenon not only reduces discharge efficiency and pellet quality, but can even cause equipment downtime in severe cases. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a plastic granulator that is convenient for cutting to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a plastic granulator that is easy to cut, comprising a transmission device, wherein the top of the transmission device is fixedly connected to a feed port, the rear side of the transmission device is fixedly connected to a motor, the front end of the transmission device is fixedly connected to a connecting pipe 1, and the outer wall of the connecting pipe 1 is fixedly connected to a heating pipe, and further comprising: A plastic granulator convenient for cutting, comprising a transmission device, wherein the top of the transmission device is fixedly connected to a feed port, the rear side of the transmission device is fixedly connected to a motor, the front end of the transmission device is fixedly connected to a connecting pipe 1, and the outer wall of the connecting pipe 1 is fixedly connected to a heating pipe, characterized in that it also includes: The particle dispensing mechanism includes a shell 1 arranged at the bottom of a connecting tube 1, the outer wall of the shell 1 is fixedly connected to the transmission device, the interior of the shell 1 is fixedly connected to a central component, the bottom of the shell 1 is fixedly connected to a motor 2, the top of the shell 1 is rotatably connected to a gear 1 through a bearing, the output end of the motor 2 is fixedly connected to the gear 1, and the heating tube heats the plastic in the connecting tube 1 to prevent the plastic from solidifying in the connecting tube 1.

[0007] According to the above technical solution, the outer wall of the shell 1 is fixedly connected to an air pump, the inner wall of the shell 1 is provided with an annular groove, the inner wall of the annular groove is provided with a through hole 1, and the through hole 1 penetrates the annular groove and extends to the interior of the air pump. The air pump is used to suck external gas into the interior of the equipment to provide gas to the central component.

[0008] According to the above technical solution, the central component includes a second shell, the outer wall of the second shell is fixedly connected to the first shell, the outer wall of the second shell is provided with a ventilation hole, and the interior of the second shell is rotatably connected to a rotating component through a bearing, and the ventilation hole is used to introduce the gas delivered to the interior of the device by the air pump into the rotating component.

[0009] According to the above technical solution, a granulation net is fixedly connected to the bottom of the second shell, a circular hole is opened at the bottom of the granulation net, and a connecting groove is opened at the bottom of the second shell. The granulation net is used to convert liquid plastic into granules.

[0010] According to the above technical solution, the rotating component includes a connecting tube 2, the outer wall of the connecting tube 2 is rotatably connected to the outer shell 2 through a bearing, a notch is provided at the bottom of the outer wall of the connecting tube 2, the bottom of the connecting tube 2 is fixedly connected to a bottom plate, the outer wall of the bottom plate is rotatably connected to the circular hole through a bearing, the bottom of the bottom plate is fixedly connected to a cutting component, and the connecting tube 2 transfers the liquid plastic through the notch to the top of the granulation net.

[0011] According to the above technical solution, the outer wall of the connecting tube 2 is fixedly connected with gear 2, the bottom of the gear 2 is rotatably connected to the outer shell 2 through a bearing, the gear 2 is engaged with gear 1, and the top of the connecting tube 2 is fixedly connected with connecting ring 1, the interior of the connecting ring 1 is rotatably connected to the connecting tube 1 through a bearing, and the gear 2 rotates under the drive of the gear 1, thereby controlling the rotation of the rotating component.

[0012] According to the above technical solution, the outer wall of the connecting pipe 2 is fixedly connected to a hollow column, the bottom of the hollow column is fixedly connected to a raised plate, the outer wall of the hollow column is rotatably connected to the outer shell 2 through a bearing, and a through hole 2 is opened on the top of the hollow column, and the through hole 2 passes through the hollow column and extends to the bottom of the raised plate. The through hole 2 is used to guide the airflow entering the interior of the equipment to the top of the granulation net.

[0013] According to the above technical solution, the cutting assembly includes a circular plate, the top of which is fixedly connected to the bottom plate, the outer wall of which is fixedly connected to a cutting blade, the end of the cutting blade away from the circular plate being fixedly connected to a second connecting ring, the top of which is rotatably connected to a connecting groove via a bearing, and the cutting blade rotates under the drive of the rotating assembly to cut the plastic. By setting up the cutting assembly, the rotating cutting blade rotates under the drive of the rotating assembly, and its cutting edge not only cuts the plastic strips extruded through the granulating mesh, but also forms friction between the top surface of the blade body and the bottom surface of the granulating mesh, utilizing the force generated by mechanical grinding to remove adhered plastic residues, and simultaneously high-speed airflow is ejected along the rear of the blade body during the cutting process. This synergistic mechanism of mechanical scraping and airflow sweeping further improves the removal of accumulated materials on the surface and in the pores of the granulating mesh, allowing the equipment to maintain unobstructed mesh during continuous operation.

[0014] Compared with the prior art, the present invention provides a plastic granulator that is easy to cut and has the following beneficial effects: 1. The present invention sets up a central component, and external gas introduces compressed air into the outer shell 2 of the central component through an air pump. The ventilation holes of the outer shell 2 are used to transport the gas to the hollow column of the rotating component, and the air flow is sprayed onto the upper surface of the granulation net through the through hole 2, effectively removing the plastic residue in the pores of the granulation net, improving the anti-clogging ability of the granulation net and the continuous operation stability of the equipment.

[0015] 2. The present invention changes the traditional fixed-point extrusion mode by setting a rotating component. This dynamic coating method allows the mechanical load and thermal load borne by the mesh surface to be periodically dispersed, effectively alleviating the concentration of local stress and temperature, and avoiding mesh deformation or damage caused by continuous high pressure, thereby extending the service life of the granulation mesh and ensuring long-term stable operation of the equipment.

[0016] 3. The present invention changes the traditional horizontal discharging method into a vertical downward discharging structure by setting a particle discharging mechanism. Compared with the lateral splashing of particles caused by the traditional horizontal discharging, this vertically guided discharging method effectively avoids the collision and adhesion of particles extruded at different times in the horizontal direction. At the same time, it uses the action of gravity to quickly separate the particles from the area below the granulation net, avoiding the risk of secondary blockage of the bottom granulation net by falling particles, reducing the particle breakage rate and agglomeration phenomenon, ensuring that the granulation net is always kept clean and unobstructed, and improving the continuous operation stability of the equipment.

[0017] 4. The present invention is provided with a cutting assembly. The rotary cutting knife rotates under the drive of the rotating assembly. Its cutting edge not only cuts the plastic strips extruded through the granulation net, but also forms friction between the top surface of the knife body and the bottom surface of the granulation net, and utilizes the force generated by mechanical grinding to remove the adhered plastic residue. At the same time, high-speed airflow is ejected along the rear of the knife body during the cutting process. This synergistic mechanism of mechanical scraping and airflow blowing further improves the removal of accumulated materials on the surface and pores of the granulation net, so that the mesh of the equipment remains unobstructed during continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the dispensing mechanism of the present invention Figure 1 ; Figure 3 Schematic diagram of the dispensing mechanism of the present invention Figure 2 ; Figure 4 is a schematic diagram of the central component of the present invention; Figure 5 A cross-sectional view of the central component of the present invention Figure 1 ; Figure 6 A cross-sectional view of the central component of the present invention Figure 2 ; Figure 7 Schematic diagram of the rotating assembly of the present invention Figure 1 ; Figure 8 Schematic diagram of the rotating assembly of the present invention Figure 2 ; Figure 9 is a schematic diagram of a cutting assembly of the present invention; In the figure: 1. Transmission device; 101. Feeding port; 102. Motor 1; 103. Connecting pipe 1; 104. Heating pipe; 2. Dispensing mechanism; 201. Housing 1; 202. Motor 2; 203. Gear 1; 204. Air pump; 205. Annular groove; 206. Through hole 1; 21. Center component; 211. Housing 2; 212. Ventilation hole; 213. Granulating net; 214. Circular hole; 215. Connecting groove; 22. Rotating component; 221. Connecting pipe 2; 222. Gear 2; 223. Connecting ring 1; 224. Hollow column; 225. Raised plate; 226. Through hole 2; 227. Notch; 228. Bottom plate; 23. Cutting component; 231. Circular plate; 232. Cutting knife; 233. Connecting ring 2. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0021] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0022] Example 1: See Figure 1-Figure 3 The present invention provides a technical solution: a plastic granulator that is easy to cut, including a transmission device 1, a feeding port 101 is fixedly connected to the top of the transmission device 1, a motor is fixedly connected to the rear side of the transmission device 1, a connecting pipe 103 is fixedly connected to the front end of the transmission device 1, and a heating pipe 104 is fixedly connected to the outer wall of the connecting pipe 103. When the equipment is running, the raw material is pushed into the transmission device 1 from the feeding port 101. At this time, the motor 102 is started to drive the threaded transmission rod inside the transmission device 1 to rotate. At this time, the raw material will be pushed into the connecting pipe 103 and melted by the external heating pipe 104. The melted plastic will be pushed to the granulation mechanism 2 below.

[0023] The dispensing mechanism 2 includes a shell 201 arranged at the bottom of the connecting tube 103, the outer wall of the shell 201 is fixedly connected to the transmission device 1, the interior of the shell 201 is fixedly connected to the central component 21, the bottom of the shell 201 is fixedly connected to the motor 202, the top of the shell 201 is rotatably connected to the gear 203 through the bearing, the output end of the motor 202 is fixedly connected to the gear 203, the heating tube 104 heats the plastic in the connecting tube 103 to prevent the plastic from solidifying, and the outer wall of the shell 201 is fixedly connected There is an air pump 204, and an annular groove 205 is provided on the inner wall of the outer shell 201. A through hole 206 is provided on the inner wall of the annular groove 205. The through hole 206 penetrates the annular groove 205 and extends to the interior of the air pump 204. When the equipment is running, the starting motor 202 drives the gear 203 to rotate, and the rotating gear 203 drives the central component 21 to rotate. At the same time, the air pump 204 sucks the external gas into the through hole 206, and then transports it to the annular groove 205 through the through hole 206, and then transports it to the interior of the central component 21 through the annular groove 205.

[0024] Example 2: Please refer to Figure 4-Figure 9 On the basis of embodiment 1, the present invention provides a technical solution: the central component 21 includes a second shell 211, the outer wall of the second shell 211 is fixedly connected to the first shell 201, and the outer wall of the second shell 211 is provided with a ventilation hole 212. The interior of the second shell 211 is rotatably connected to the rotating component 22 through a bearing. The ventilation hole 212 transports the gas delivered by the air pump 204 to the inside of the device to the rotating component 22, and the bottom of the second shell 211 is fixedly connected to a granulating net 213, and the bottom of the granulating net 213 is provided with a circular hole 214. The bottom of the second shell 211 is provided with a connecting groove 215. The granulating net 213 converts liquid plastic into granules. When the equipment is working, the gas in the annular groove 205 enters the interior of the second shell 211 through the ventilation hole 212, and is then transported to the upper surface of the granulating net 213 through the top of the central component 21, and the granulating net 213 is sprayed to prevent the granulating net 213 from being blocked.

[0025] The rotating assembly 22 includes a second connecting pipe 221, the outer wall of which is rotatably connected to the second housing 211 through a bearing, a notch 227 is provided at the bottom of the outer wall of the second connecting pipe 221, and a bottom plate 228 is fixedly connected to the bottom of the second connecting pipe 221. The outer wall of the bottom plate 228 is rotatably connected to the circular hole 214 through a bearing, and the bottom of the bottom plate 228 is fixedly connected to the cutting assembly 23. The second connecting pipe 221 transports the liquid plastic to the top of the granulation net 213 through the notch 227. The outer wall of the second connecting pipe 221 is fixedly connected to the second gear 222, and the bottom of the second gear 222 is rotatably connected to the second housing 211 through a bearing. The second gear 222 is engaged with the first gear 203. The top of the second connecting pipe 221 is fixedly connected to the first connecting ring 223. The interior of the first connecting ring 223 is rotatably connected to the connecting pipe 103 through a bearing. The second gear 222 rotates under the drive of the first gear 203. The outer wall of the connecting tube 221 is fixedly connected with a hollow column 224, and the bottom of the hollow column 224 is fixedly connected with a raised plate 225. The outer wall of the hollow column 224 is rotatably connected to the outer shell 211 through a bearing. The top of the hollow column 224 is provided with a through hole 226, which penetrates the hollow column 224 and extends to the bottom of the raised plate 225. When the equipment is working, the rotation of the gear 1 203 will drive the gear 222 to rotate, and the rotating gear 222 will drive the rotating assembly 22 to rotate as a whole. At this time, the plastic in the connecting tube 1 103 will enter the connecting tube 2 21 through the connecting ring 1 223, and then flow to the upper surface of the granulation net 213 through the notch 227 on the connecting tube 221. At this time, since the plastic is continuously filled into the connecting tube 221, the plastic is squeezed out from the granulation net 213.

[0026] The cutting assembly 23 includes a circular plate 231, the top of the circular plate 231 is fixedly connected to the bottom plate 228, the outer wall of the circular plate 231 is fixedly connected to a cutting knife 232, and the end of the cutting knife 232 away from the circular plate 231 is fixedly connected to a connecting ring 233, and the top of the connecting ring 233 is rotatably connected to the connecting groove 215 through a bearing. The cutting knife 232 rotates under the drive of the rotating assembly 22 to cut the plastic strip.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A plastic granulator that is easy to cut, comprising a transmission device (1), wherein the top of the transmission device (1) is fixedly connected to a feed port (101), the rear side of the transmission device (1) is fixedly connected to a motor, the front end of the transmission device (1) is fixedly connected to a connecting pipe (103), and the outer wall of the connecting pipe (103) is fixedly connected to a heating pipe (104), characterized in that: Also includes: A granulation mechanism (2) includes a shell 1 (201) arranged at the bottom of a connecting tube 1 (103), an outer wall of the shell 1 (201) is fixedly connected to the transmission device (1), the interior of the shell 1 (201) is fixedly connected to a central component (21), the bottom of the shell 1 (201) is fixedly connected to a motor 2 (202), the top of the shell 1 (201) is rotatably connected to a gear 1 (203) via a bearing, the output end of the motor 2 (202) is fixedly connected to the gear 1 (203), and the heating tube (104) heats the plastic in the connecting tube 1 (103) to prevent the plastic from solidifying in the connecting tube 1 (103).

2. A plastic granulator that is easy to cut according to claim 1, characterized in that: The outer wall of the housing 1 (201) is fixedly connected to an air pump (204), the inner wall of the housing 1 (201) is provided with an annular groove (205), the inner wall of the annular groove (205) is provided with a through hole 1 (206), the through hole 1 (206) penetrates the annular groove (205) and extends to the interior of the air pump (204), and the air pump (204) is used to suck external gas into the interior of the device to provide gas to the central component (21).

3. A plastic granulator that is easy to cut according to claim 2, characterized in that: The central component (21) includes a second shell (211), the outer wall of the second shell (211) is fixedly connected to the first shell (201), the outer wall of the second shell (211) is provided with a ventilation hole (212), the interior of the second shell (211) is rotatably connected to the rotating component (22) through a bearing, and the ventilation hole (212) is used to guide the gas delivered to the interior of the device by the air pump (204) into the rotating component (22).

4. A plastic granulator for easy cutting according to claim 3, characterized in that: The bottom of the second shell (211) is fixedly connected to a granulation net (213), the bottom of the granulation net (213) is provided with a circular hole (214), and the bottom of the second shell (211) is provided with a connection groove (215). The granulation net (213) is used to convert liquid plastic into granules.

5. A plastic granulator convenient for cutting according to claim 4, characterized in that: The rotating assembly (22) includes a second connecting pipe (221), the outer wall of which is rotatably connected to the second housing (211) via a bearing, a notch (227) being provided at the bottom of the outer wall of the second connecting pipe (221), a bottom plate (228) being fixedly connected to the bottom of the second connecting pipe (221), the outer wall of the bottom plate (228) being rotatably connected to the circular hole (214) via a bearing, a cutting assembly (23) being fixedly connected to the bottom of the bottom plate (228), and the second connecting pipe (221) transferring liquid plastic to the top of the granulation net (213) via the notch (227).

6. A plastic granulator for easy cutting according to claim 5, characterized in that: The outer wall of the connecting tube 2 (221) is fixedly connected to the gear 2 (222), the bottom of the gear 2 (222) is rotatably connected to the housing 2 (211) via a bearing, the gear 2 (222) is meshed with the gear 1 (203), the top of the connecting tube 2 (221) is fixedly connected to the connecting ring 1 (223), the interior of the connecting ring 1 (223) is rotatably connected to the connecting tube 1 (103) via a bearing, and the gear 2 (222) rotates under the drive of the gear 1 (203), thereby controlling the rotation of the rotating assembly (22).

7. A plastic granulator for easy cutting according to claim 6, characterized in that: The outer wall of the second connecting pipe (221) is fixedly connected to a hollow column (224), the bottom of the hollow column (224) is fixedly connected to a raised plate (225), the outer wall of the hollow column (224) is rotatably connected to the second housing (211) via a bearing, and a second through hole (226) is provided at the top of the hollow column (224), the second through hole (226) passes through the hollow column (224) and extends to the bottom of the raised plate (225), and the second through hole (226) is used to guide the airflow entering the interior of the device to the top of the granulation net (213).

8. The plastic granulator for easy cutting according to claim 7, characterized in that: The cutting assembly (23) comprises a circular plate (231), the top of the circular plate (231) being fixedly connected to the bottom plate (228), the outer wall of the circular plate (231) being fixedly connected to a cutting knife (232), the end of the cutting knife (232) away from the circular plate (231) being fixedly connected to a second connecting ring (233), the top of the second connecting ring (233) being rotatably connected to the connecting groove (215) via a bearing, and the cutting knife (232) being driven by the rotating assembly (22) to rotate and cut the plastic.

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