Granulator for high-performance flame-retardant plastic particles

Abstract

The utility model relates to a granulator for high-performance flame-retardant plastic particles, which belongs to the field of high-performance flame-retardant plastic particle processing, and comprises a bottom plate, two vertical plates are vertically fixed on the upper surface of the bottom plate, a granulator main body is fixed on the upper surface of the bottom plate, the right end of the granulator main body is fixedly communicated with an extrusion head, and the right end of the granulator main body is fixedly communicated with the extrusion head. A heat preservation box is fixed to the right side of the granulator body, a discharging plate is obliquely fixed to the position, close to the bottom end of the heat preservation box, of the right side of the heat preservation box, a screening mechanism is arranged above a bottom plate, and a cooling mechanism is arranged above the granulator body. According to the pelletizer for the high-performance flame-retardant plastic particles, a motor is started to enable a connecting rod to rotate to drive two oscillation blocks to rotate and beat a screening box, a driving shaft rotates to enable the pelletizer body to work, and the high-performance flame-retardant plastic particles discharged by an extrusion head are cut through a plurality of cutting blades; plastic particles can be filtered by the two filter plates through the screening box vibrating up and down, and the purpose of saving cost is achieved through the single motor.

Description

Technical Field

[0001] The utility model relates to the technical field of high-performance flame-retardant plastic particle processing, and particularly relates to a granulator for high-performance flame-retardant plastic particles. Background Technique

[0002] High-performance flame-retardant plastic particles are a special plastic material. While maintaining the general properties of plastics, they also have excellent flame-retardant properties. These materials are widely used in fields with high fire safety requirements, such as electronic appliances, the automotive industry, and building materials.

[0003] For example, Chinese Patent CN 217531456 U discloses a plastic particle granulator. The granulator includes: a bracket, a thermoplastic extrusion assembly provided on the bracket for melting the material and extruding it in a strip shape, a cooling assembly provided on the bracket for cooling and forming the extruded strip-shaped material, a cutting assembly provided on the cooling assembly for cutting the cooled and formed strip-shaped material into particles, and a material distribution assembly provided on the bracket for distinguishing the produced plastic particles according to particle size.

[0004] The above-mentioned plastic particle granulator still has certain deficiencies. It melts the material through the thermoplastic extrusion assembly and extrudes it in a strip shape, then cools and forms the extruded strip-shaped material through the cooling assembly, and then cuts the cooled and formed strip-shaped material into particles and the material does not adhere to the blade, so that the blade maintains high cutting efficiency. Finally, the produced plastic particles are distinguished according to particle size through the material distribution assembly to improve the product appearance. However, it uses multiple driving devices for the processing of plastic particles, resulting in a high cost and reducing the practicability of the plastic particle granulator. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a granulator for high-performance flame-retardant plastic particles, which has the advantage of cost savings and solves the problem of high cost caused by using multiple driving devices for the processing of plastic particles.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A granulator for high-performance flame-retardant plastic particles, including a bottom plate. Two vertical plates are vertically fixed on the upper surface of the bottom plate. A granulator main body is fixed on the upper surface of the bottom plate. The right end of the granulator main body is fixedly communicated with an extrusion head. A heat preservation box is fixed on the right side of the granulator main body. A discharge plate is obliquely fixed on the right side of the heat preservation box and near its bottom end. A screening mechanism is arranged above the bottom plate. A cooling mechanism is arranged above the granulator main body.

[0007] The screening mechanism includes a motor fixed to the right side of the right vertical plate. A connecting rod is fixed to the outer side of the output shaft of the motor. The connecting rod is drivingly connected to two chains through two sprockets fixed to its outer side. The left end of the granulator main body is rotatably connected to a driving shaft through a bearing. The right end of the insulation box is horizontally fixed with a top plate near its top. Two connecting plates are fixed to the upper surface of the top plate. A connecting column is rotatably connected between the two connecting plates through a bearing. A plurality of cutting blades are fixed to the outer side of the connecting column. The right end of the connecting column is fixed with a movable rod rotatably connected to the right vertical plate. Four elastic members are fixed to the upper surface of the bottom plate. The tops of the four elastic members are fixed to the same screening box. Two oscillating blocks are fixed to the outer side of the connecting rod. The inner walls of the screening box cavity are inclined and fixed with two filter plates by bolts. A plurality of filter holes are respectively formed in the upper surfaces of the two filter plates;

[0008] The cooling mechanism includes a water pump fixed to the upper surface of the granulator main body. The water pumping end of the water pump is fixedly communicated with a water suction pipe. The water drainage end of the water pump is fixedly communicated with a water discharge pipe. A water tank is fixed to the lower surface of the granulator main body.

[0009] Furthermore, the connecting rod is rotatably connected between the two vertical plates through a bearing. The filter holes of the lower filter plate are smaller than those of the upper filter plate.

[0010] Furthermore, the driving shaft is drivingly connected to the inside of the left chain through a sprocket fixed to its outer side. The movable rod is drivingly connected to the inside of the right chain through a sprocket fixed to its outer side.

[0011] Furthermore, a plurality of the cutting blades are movably attached to the right end of the extrusion head. Grooves extending to the lower surface of the top plate and located at both ends of the plurality of cutting blades are formed in the upper surface of the top plate.

[0012] Furthermore, a feed port is formed in the upper surface of the screening box. Collection boxes are fixedly communicated with both the left and right sides of the screening box.

[0013] Furthermore, both of the oscillating blocks are located below the screening box. The four elastic members are each composed of a spring and a damper, and the four springs are respectively sleeved on the outer sides of the four dampers.

[0014] Furthermore, the end of the water suction pipe away from the water pump is fixedly communicated with the back wall of the inner cavity of the water tank. The end of the water discharge pipe away from the water pump is wound and sleeved on the outer side of the extrusion head and communicated with the right side of the water tank.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0016] 1. For the granulator of the high-performance flame-retardant plastic particles, start the motor to make the connecting rod start to rotate, drive the two oscillating blocks to rotate and strike the screening box, and at the same time, the drive shaft rotates to make the granulator main body start to work. Use multiple cutting blades to cut the high-performance flame-retardant plastic particles discharged from the extrusion head. The screening box that vibrates up and down can make the plastic particles be filtered by the two filter plates respectively, achieving the purpose of facilitating the filtration of plastic particles. At the same time, a single motor serves the purpose of cost savings.

[0017] 2. For the granulator of the high-performance flame-retardant plastic particles, pump out the coolant through the water pump and transmit it through the drain pipe, so that the coolant transmitted inside the drain pipe exchanges heat with the extrusion head, enabling the raw material to be quickly cooled and formed for easy discharging. The coolant flows back into the interior of the water tank and is cooled by the refrigerating sheet for subsequent cooling work. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present utility model;

[0019] Figure 2 It is a three-dimensional diagram of the discharge plate structure of the present utility model;

[0020] Figure 3 It is a schematic diagram of the screening mechanism of the present utility model;

[0021] Figure 4 It is a schematic diagram of the cooling mechanism of the present utility model.

[0022] In the figure: 1 bottom plate, 2 screening mechanism, 201 motor, 202 connecting rod, 203 chain, 204 drive shaft, 205 connecting plate, 206 connecting column, 207 movable rod, 208 elastic member, 209 screening box, 210 oscillating block, 211 filter plate, 3 vertical plate, 4 cooling mechanism, 401 water pump, 402 water suction pipe, 403 drain pipe, 404 water tank, 5 granulator main body, 6 extrusion head, 7 discharge plate, 8 heat preservation box. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1-2In this embodiment, a granulator for high-performance flame-retardant plastic particles includes a bottom plate 1, two vertical plates 3 are vertically fixed on the upper surface of the bottom plate 1, a granulator body 5 is fixed on the upper surface of the bottom plate 1, an extruder head 6 is fixedly connected to the right end of the granulator body 5, an insulation box 8 is fixed to the right side of the granulator body 5, a discharge plate 7 is obliquely fixed to the right side of the insulation box 8 and near the bottom end thereof, a screening mechanism 2 is provided above the bottom plate 1, and a cooling mechanism 4 is provided above the granulator body 5.

[0025] See also Figure 3 In order to save costs, the screening mechanism 2 in this embodiment includes a motor 201 fixed to the right side of the right vertical plate 3, a connecting rod 202 is fixed to the outside of the output shaft of the motor 201, and the connecting rod 202 is connected to two chains 203 through two sprocket wheels fixed to the outside thereof. The left end of the granulator body 5 is rotatably connected to a driving shaft 204 through a bearing, and a top plate is horizontally fixed to the right end of the insulation box 8 and near its top end. Two connecting plates 205 are fixed to the upper surface of the top plate, and the two connecting plates 205 are rotatably connected to each other through a bearing. A connecting column 206 is connected, and a plurality of cutting blades are fixed to the outside of the connecting column 206. A movable rod 207 rotatably connected to the right vertical plate 3 is fixed to the right end of the connecting column 206. Four elastic members 208 are fixed to the upper surface of the bottom plate 1, and the top of the four elastic members 208 is fixed with the same screening box 209. Two oscillation blocks 210 are fixed to the outside of the connecting rod 202. Two filter plates 211 are fixed to the inner wall of the inner cavity of the screening box 209 by bolts, and a plurality of filter holes are respectively provided on the upper surfaces of the two filter plates 211.

[0026] In this example, the connecting rod 202 is rotatably connected between the two vertical plates 3 through bearings. The filter holes of the lower filter plate 211 are smaller than those of the upper filter plate 211. The drive shaft 204 is connected to the inside of the left chain 203 through a sprocket fixed on its outer side. The movable rod 207 is connected to the inside of the right chain 203 through a sprocket fixed on its outer side. A plurality of cutting blades are movably attached to the right end of the extrusion head 6. Grooves extending from the upper surface to the lower surface of the top plate and located at both ends of the plurality of cutting blades are provided on the upper surface of the top plate. A feed port is provided on the upper surface of the screening box 209. Collection boxes are fixedly communicated with both the left and right sides of the screening box 209. Both of the two vibrating blocks 210 are located below the screening box 209. Starting the motor 201 causes the connecting rod 202 to start rotating, driving the two vibrating blocks 210 to rotate and strike the screening box 209. The four elastic members 208 are each composed of a spring and a damper. The connecting rod 202 drives the two chains 203 to drive, causing the drive shaft 204 to rotate and the granulator main body 5 to start working. At the same time, the right chain 203 drives the movable rod 207 to rotate, causing the connecting column 206 to drive the plurality of cutting blades to cut the high-performance flame-retardant plastic particles discharged from the extrusion head 6. The cut high-performance flame-retardant plastic particles slide through the discharge plate 7 into the inside of the screening box 209. And the four springs are respectively sleeved on the outer sides of the four dampers. The vibrating screening box 209 can filter the plastic particles by the two filter plates 211 respectively, achieving the purpose of facilitating the filtering of plastic particles.

[0027] It should be noted that starting the motor 201 causes the connecting rod 202 to start rotating, driving the two vibrating blocks 210 to rotate and strike the screening box 209. At the same time, the drive shaft 204 rotates and the granulator main body 5 starts working. The plurality of cutting blades are used to cut the high-performance flame-retardant plastic particles discharged from the extrusion head 6. The vibrating screening box 209 can filter the plastic particles by the two filter plates 211 respectively, achieving the purpose of facilitating the filtering of plastic particles. At the same time, a single motor 201 serves the purpose of cost saving.

[0028] Please refer to Figure 4 , in order to enable the raw materials to be quickly cooled and formed for easy discharging, the cooling mechanism 4 in this embodiment includes a water pump 401 fixed on the upper surface of the granulator main body 5. The water intake end of the water pump 401 is fixedly communicated with a water suction pipe 402. The water discharge end of the water pump 401 is fixedly communicated with a water discharge pipe 403. A water tank 404 is fixed on the lower surface of the granulator main body 5. The water tank 404 is filled with a coolant. A refrigerating sheet is fixed on the inner wall of the inner cavity of the water tank 404.

[0029] In this embodiment, one end of the water suction pipe 402 away from the water pump 401 is fixedly connected to the back wall of the inner cavity of the water tank 404. The water tank 404 is filled with a coolant, and the water pump 401 pumps out the coolant and transmits it through the drain pipe 403, so that the coolant flowing inside the drain pipe 403 exchanges heat with the extrusion head 6, enabling the raw material to be quickly cooled and formed for easy discharging. One end of the drain pipe 403 away from the water pump 401 is wound around and sleeved outside the extrusion head 6 and is connected to the right side of the water tank 404. The coolant flows back into the interior of the water tank 404 and is cooled by a thermoelectric cooler for subsequent cooling work.

[0030] It should be noted that the water pump 401 pumps out the coolant and transmits it through the drain pipe 403, so that the coolant flowing inside the drain pipe 403 exchanges heat with the extrusion head 6, enabling the raw material to be quickly cooled and formed for easy discharging. The coolant flows back into the interior of the water tank 404 and is cooled by a thermoelectric cooler for subsequent cooling work.

[0031] It can be understood that the electrical components mentioned in the text are all electrically connected to the main controller and the power supply, and the electrical components mentioned in the text are all conventional and known devices. This application will not elaborate further. The main controller can be a conventional and known device such as a computer for control. The control circuit of the main controller can be realized by simple programming by those skilled in the art. The provision of the power supply also belongs to the common knowledge in this field. Moreover, this utility model mainly aims to protect mechanical devices, so the control method and circuit connection of this utility model will not be explained in detail. At the same time, for the parts not described in detail in this utility model, they are all well-known technologies to those skilled in the art.

[0032] In the description of this utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific situations.

[0033] The working principle of the above embodiment is as follows:

[0034] (1) When the granulator for the high-performance flame-retardant plastic particles is needed, start the motor 201 to make the connecting rod 202 start to rotate, drive the two oscillating blocks 210 to rotate and strike the screening box 209. At the same time, the connecting rod 202 drives the two chains 203 to transmit, making the drive shaft 204 rotate and the granulator main body 5 start to work. At the same time, the right chain 203 drives the movable rod 207 to rotate, making the connecting column 206 drive a plurality of cutting blades to cut the high-performance flame-retardant plastic particles discharged from the extrusion head 6. The cut high-performance flame-retardant plastic particles slide down through the discharge plate 7 into the interior of the screening box 209. The plastic particles can be filtered by the two filter plates 211 respectively through the vibrating screening box 209 up and down, achieving the purpose of facilitating the filtering of plastic particles.

[0035] (2) Meanwhile, fill the water tank 404 with coolant, pump out the coolant through the water pump 401 and transmit it through the drain pipe 403, so that the coolant transmitted inside the drain pipe 403 exchanges heat with the extrusion head 6, enabling the raw material to be quickly cooled and formed for easy discharging. The coolant flows back into the interior of the water tank 404 and is cooled by the refrigerating sheet for subsequent cooling work.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0037] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model.

Claims

1. A granulator for high-performance flame-retardant plastic granules, comprising a bottom plate (1), characterized in that: Two vertical plates (3) are vertically fixed on the upper surface of the bottom plate (1); a granulator body (5) is fixed on the upper surface of the bottom plate (1); an extruder head (6) is fixedly connected to the right end of the granulator body (5); a heat preservation box (8) is fixed on the right side of the granulator body (5); a discharge plate (7) is obliquely fixed on the right side of the heat preservation box (8) and close to the bottom end thereof; a screening mechanism (2) is provided above the bottom plate (1); and a cooling mechanism (4) is provided above the granulator body (5); The screening mechanism (2) comprises a motor (201) fixed to the right side of the right vertical plate (3), a connecting rod (202) fixed to the outside of the output shaft of the motor (201), the connecting rod (202) being connected to two chains (203) through two sprocket wheels fixed to the outside thereof, the left end of the granulator body (5) being rotatably connected to a drive shaft (204) through a bearing, a top plate being horizontally fixed to the right end of the heat preservation box (8) and near the top thereof, two connecting plates (205) being fixed to the upper surface of the top plate, a connecting column (206) being rotatably connected between the two connecting plates (205) through a bearing ), a plurality of cutting blades are fixed to the outside of the connecting column (206), a movable rod (207) rotatably connected to the right vertical plate (3) is fixed to the right end of the connecting column (206), four elastic members (208) are fixed to the upper surface of the bottom plate (1), the top ends of the four elastic members (208) are fixed with a same screening box (209), two oscillating blocks (210) are fixed to the outside of the connecting rod (202), and two filter plates (211) are fixed to the inner wall of the inner cavity of the screening box (209) by bolts, and the upper surfaces of the two filter plates (211) are respectively provided with a plurality of filter holes; The cooling mechanism (4) comprises a water pump (401) fixed on the upper surface of the granulator body (5); a water pumping end of the water pump (401) is fixedly connected to a water pumping pipe (402); a water discharge end of the water pump (401) is fixedly connected to a water discharge pipe (403); and a water tank (404) is fixed on the lower surface of the granulator body (5).

2. A granulator for high-performance flame-retardant plastic particles according to claim 1, characterized in that: The connecting rod (202) is rotatably connected between the two vertical plates (3) via a bearing, and the filter holes of the lower filter plate (211) are smaller than the filter holes of the upper filter plate (211).

3. The granulator for high-performance flame-retardant plastic particles according to claim 1, characterized in that: The driving shaft (204) is connected to the inside of the left chain (203) through a sprocket wheel fixed on its outer side, and the movable rod (207) is connected to the inside of the right chain (203) through a sprocket wheel fixed on its outer side.

4. The granulator for high-performance flame-retardant plastic particles according to claim 1, characterized in that: The plurality of cutting blades are movably fitted to the right end of the extrusion head (6), and the upper surface of the top plate is provided with grooves extending to the lower surface thereof and located at both ends of the plurality of cutting blades.

5. The granulator for high-performance flame-retardant plastic particles according to claim 1, characterized in that: A feed port is provided on the upper surface of the screening box (209), and left and right sides of the screening box (209) are fixedly connected to a collecting box.

6. The granulator for high-performance flame-retardant plastic particles according to claim 1, characterized in that: The two oscillating blocks (210) are both located below the screening box (209), the four elastic members (208) are each composed of a spring and a damper, and the four springs are respectively sleeved on the outside of the four dampers.

7. The granulator for high-performance flame-retardant plastic particles according to claim 1, characterized in that: One end of the water suction pipe (402) away from the water pump (401) is fixedly connected to the back wall of the inner cavity of the water tank (404), and one end of the water discharge pipe (403) away from the water pump (401) is wrapped around the outside of the extruder head (6) and connected to the right side of the water tank (404).

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