CN212123810U - A pelletizing device for plastic flame retardant particles - Google Patents

Abstract

The utility model relates to a pelletizing device for plastic flame-retardant particles, which comprises a casing, the inner cavity of the casing is provided with a feeding mechanism, and the feeding mechanism comprises an upper feeding roller and a lower feeding roller. A threaded rod is arranged above the upper feeding roller, a driving roller is arranged below the lower feeding roller, a driving motor is arranged below the driving roller, and the driving roller and the lower feeding roller are connected by a transmission belt, so One side of the above-mentioned feeding roller is provided with a granulating cutter disc, the pelletizing cutter disc is evenly provided with a pelletizing blade, and a material guide roller is arranged under the granulation cutter disc, on which A material guide sheet is evenly arranged, a partition plate is arranged between the lower feed roller and the material guide roller, a material guide plate is arranged on one side of the partition plate, and a first screen is arranged on the material guide plate And the second screen, the utility model can adjust the spacing between the feeding rollers to adapt to the plastic strips of different sizes, and can also collect the debris generated in the dicing process.

Description

A pelletizing device for plastic flame retardant particles

technical field

The utility model relates to a pelletizing device for plastic flame retardant particles, which belongs to the technical field of plastic flame retardant particles.

Background technique

Plastic particles, commonly known as plastic particles, are raw materials for storage, transportation and processing of plastics in the form of semi-finished products. Plastics are a class of polymer materials. Ethylene, propylene, vinyl chloride, styrene, etc. can be obtained from petroleum. The molecules of these substances can react with each other under certain conditions to form compounds with large molecular weights, that is, polymers. The most outstanding property of polypropylene is its versatility, which makes it suitable for many processing methods and uses. Its value and versatility come mainly from its excellent chemical resistance, the lowest density and highest melting point of any thermoplastic, and a moderate cost.

The production of plastic flame retardant particles requires the use of a pelletizing device. The position of the feeding roller of the general pelletizing device is fixed, so the large-sized plastic strip cannot pass through the feeding roller, while the small-sized plastic strip is passing through. The feed rollers are prone to shaking and some debris splashes during the pelletizing process, which will affect the pelletizing process.

Utility model content

The technical problem to be solved by the utility model overcomes the existing defects, and provides a pelletizing device for plastic flame-retardant particles, which can adjust the spacing between the feeding rollers to adapt to plastic strips of different sizes, and can also The collection of debris generated during the pelletizing process can effectively solve the problems in the background art.

In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions:

A pelletizing device for plastic flame-retardant particles, comprising a casing, a feeding mechanism is arranged in the inner cavity of the casing, the feeding mechanism comprises an upper feeding roller and a lower feeding roller, the upper feeding A threaded rod is arranged above the roller, a driving roller is arranged below the lower feeding roller, a driving motor is arranged below the driving roller, the driving roller and the lower feeding roller are connected by a transmission belt, and the upper feeding roller is One side of the roller is provided with a granulating cutter disc, and a pelletizing blade is evenly arranged on the granulating cutter disc. A guide roller is arranged under the granulation cutter disc, and a guide roller is evenly arranged on the feed roller. A material sheet, a partition plate is arranged between the lower feed roller and the material guide roller, a material guide plate is arranged on one side of the partition plate, and a first screen mesh and a second screen are arranged on the material guide plate. The bottom of the guide plate is slidably provided with a first collection box and a second collection box, the top of the casing is provided with a suction fan, and the suction fan is connected with a dust collection box through an air conveying pipe. The dust collecting box is communicated with a dust collecting duct and is provided with a dust hopper.

As a preferred technical solution of the present invention, one end of the threaded rod is fixedly connected to the upper feeding roller, the other end penetrates through the top of the casing and extends to the outside of the casing, and the upper feeding roller An adjusting handwheel is fixedly arranged on one end that penetrates out of the casing.

As a preferred technical solution of the present invention, a sleeve is sleeved on the outer surface of the threaded rod, and the sleeve penetrates the top of the casing, and the inner surface of the sleeve is provided with a sleeve that is connected to the outer surface of the threaded rod. Threaded grooves on the surface to match.

As a preferred technical solution of the present invention, the material guide plate is located below the material guide roller, and one end of the material guide plate is fixedly connected to the partition plate, and the other end is connected to the side wall of the inner cavity of the casing. Fixed connection.

As a preferred technical solution of the present invention, the material guide plate is inclined and provided with a discharge pipe at the lower end of the material guide plate.

As a preferred technical solution of the present invention, the first screen is opposite to the first collection box, and the second screen is opposite to the second collection box.

Technical effects and advantages of the present utility model:

1. The utility model can drive the driving roller, the transmission belt and the lower feeding roller to move by setting the driving motor, so as to carry out the feeding; by setting the upper feeding roller, the plastic material strip can be fixed, and the adjusting hand wheel can be rotated by setting , so as to drive the threaded rod and the upper feed roller to move up and down through the thread, so as to achieve the purpose of adjusting the distance between the feed rollers.

2. The utility model can granulate the plastic material strip by setting the granulating cutter plate and the granulating blade on it, and the particles are guided to the material guide plate through the material guide roller and the material guide sheet on it, and fall to the first The first screening is performed on the first screen, the small particles fall into the first collection box, and the remaining particles are rolled onto the second screen for the second screening, and the large particles fall into the second collection box. , the unqualified particles are discharged from the discharge pipe for subsequent processing.

3. The utility model can collect and store debris by setting the dust collecting box. The suction fan rotates at a high speed to generate negative pressure inside the dust collecting box. The air pressure in the dust collecting box is much lower than the air pressure in the casing. Under the action of differential pressure, the debris around the dust bucket enters the collection box with the airflow.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention.

FIG. 1 is a schematic structural diagram of a pelletizing device for plastic flame-retardant particles according to the present invention.

2 is a schematic structural diagram of an upper feeding roller of a pelletizing device for plastic flame-retardant particles according to the present invention.

3 is a schematic structural diagram of a material guide plate of a pelletizing device for plastic flame-retardant particles according to the present invention.

Labels in the figure: 1. Housing; 2. Upper feeding roller; 3. Lower feeding roller; 4. Threaded rod; 5. Adjusting handwheel; 6. Driving roller; 7. Driving motor; 8. Pelletizing cutter plate; 9, guide roller; 10, partition plate; 11, guide plate; 12, first screen; 13, second screen; 14, first collection box; 15, second collection box; 16 , suction fan; 17, dust box; 18, dust bucket; 19, sleeve.

Detailed ways

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, but not to limit the present utility model.

As shown in Figures 1 to 3, a pelletizing device for plastic flame-retardant particles includes a casing 1. The inner cavity of the casing 1 is provided with a feeding mechanism. The feeding mechanism includes an upper feeding roller 2 and a lower feeding roller. The feed roller 3, the upper feed roller 2 is provided with a threaded rod 4, the lower feed roller 3 is provided with a drive roller 6, the drive roller 6 is provided with a drive motor 7 under the drive roller 6, and the drive roller 6 and the lower feed roller 3 pass through the transmission belt connected, the driving motor 7 can drive the driving roller 6, the transmission belt and the lower feeding roller 3 to move, so as to carry out feeding, and the plastic material strip can be fixed by setting the upper feeding roller 2. Pelletizing cutter disc 8, pelletizing cutter disc 8 is evenly provided with pelletizing blades, below granulation cutter disc 8 is provided with material guide roller 9, and material guide sheet is evenly arranged on feeder roller 9, and the material is fed down A separator 10 is provided between the roller 3 and the guide roller 9, and a guide plate 11 is provided on one side of the separator 10. The guide plate 11 is provided with a first screen 12 and a second screen 13. The guide plate 11 A first collection box 14 and a second collection box 15 are slidably arranged at the bottom, and a suction fan 16 is arranged on the top of the casing 1. The suction fan 16 is connected with a dust collecting box 17 through an air supply pipe, and the dust collecting box 17 passes through the dust collecting box 17. There is a dust suction hopper 18 connected to the pipe, and the suction fan 16 rotates at a high speed to generate a negative pressure inside the dust collecting box 17. The air pressure in the dust collecting box 17 is much lower than the air pressure in the casing 1. The debris around the dust hopper 18 is allowed to enter the collection box 17 along with the air flow. It is explained here that the driving motor and the suction fan are all existing technologies, so other existing technologies are not described here.

As shown in Figures 1 and 2, one end of the threaded rod 4 in this embodiment is fixedly connected to the upper feeding roller 2, the other end penetrates the top of the casing 1 and extends to the outside of the casing 1, and the upper feeding roller 2 penetrates out of the casing 1. An adjusting handwheel 5 is fixed on one end, a sleeve 19 is sleeved on the outer surface of the threaded rod 4, and the sleeve 19 penetrates the top of the casing 1, and the inner surface of the sleeve 19 is provided with threads on the outer surface of the threaded rod 4. With the matching thread groove, the adjusting hand wheel 5 can be rotated, so as to drive the threaded rod 4 and the upper feed roller 2 to move up and down through the thread, so as to achieve the purpose of adjusting the distance between the feed rollers.

As shown in Figures 1 and 3, the material guide plate 11 in this embodiment is located below the material guide roller 9, and one end of the material guide plate 11 is fixedly connected to the partition plate 10, and the other end is fixedly connected to the side wall of the inner cavity of the casing 1. The material plate 11 is inclined, and the inclined lower end of the material guide plate 11 is provided with a discharge pipe. On the other hand, the particles are guided to the guide plate 11 through the guide roller 9 and the guide sheet on it, and fall on the first screen 12 for the first screening, and the particles of small particles fall into the first collection box 14 Inside, the remaining particles roll onto the second screen 13 for the second screening, and the larger particles fall into the second collection box 15 .

In order to facilitate the understanding of the above-mentioned technical solutions of the present utility model, the working principle or operation mode of the present utility model in the actual process is described in detail below:

In the present invention, by setting the driving motor 7, the driving roller 6, the transmission belt and the lower feeding roller 3 can be driven to move, so as to carry out material feeding. By setting the upper feeding roller 2, the plastic material strip can be fixed, and by setting the adjusting hand wheel 5 It can be rotated, so as to drive the threaded rod 4 and the upper feeding roller 2 to move up and down through the thread, so as to achieve the purpose of adjusting the distance between the feeding rollers. The blade can granulate the plastic strip, and the particles are guided to the guide plate 11 through the guide roller 9 and the guide sheet on it, and fall on the first screen 12 for the first screening. The particles fall into the first collection box 14, and the remaining particles roll onto the second screen 13 for the second screening. The large particles fall into the second collection box 15, and the unqualified particles are discharged from the discharge pipe. In order to facilitate subsequent processing, the debris can be collected and stored by setting the dust box 17. The suction fan 16 rotates at a high speed to generate negative pressure inside the dust box 17, and the air pressure in the dust box 17 is much lower than that in the casing 1. Under the action of the internal and external differential pressure, the debris around the dust hopper 18 enters the collection box 17 with the airflow.

The above are the preferred embodiments of the present invention. Those skilled in the art can also make changes and modifications to the above-mentioned embodiments. Therefore, the present invention is not limited to the above-mentioned specific embodiments. Any obvious improvement, replacement or modification made on the basis of the present invention belongs to the protection scope of the present invention.

Claims (6)

1. The utility model provides a cut grain device for fire-retardant particle of plastic, includes casing (1), its characterized in that: the inner cavity of the shell (1) is provided with a feeding mechanism, the feeding mechanism comprises an upper feeding roller (2) and a lower feeding roller (3), a threaded rod (4) is arranged above the upper feeding roller (2), a driving roller (6) is arranged below the lower feeding roller (3), a driving motor (7) is arranged below the driving roller (6), the driving roller (6) is connected with the lower feeding roller (3) through a transmission belt, a granulating and cutting cutter head (8) is arranged on one side of the upper feeding roller (2), granulating and cutting blades are uniformly arranged on the granulating and cutting cutter head (8), a guide roller (9) is arranged below the granulating and cutting cutter head (8), a guide piece is uniformly arranged on the guide roller (9), a partition plate (10) is arranged between the lower feeding roller (3) and the guide roller (9), a guide plate (11) is arranged on one side of the partition plate (10), a first screen (12) and a second screen (13) are arranged on the guide plate (11), the material guide plate is characterized in that a first material collecting box (14) and a second material collecting box (15) are arranged below the material guide plate (11) in a sliding mode, a suction fan (16) is arranged at the top of the machine shell (1), the suction fan (16) is provided with a dust collecting box (17) through air conveying pipe communication, and the dust collecting box (17) is provided with a dust suction hopper (18) through dust collecting pipe communication.

2. The pelletizing device for plastic flame retardant particles according to claim 1, characterized in that: threaded rod (4) one end with go up feed roller (2) fixed connection, the other end runs through casing (1) top and extend to outside casing (1), just go up feed roller (2) and run through out casing (1) is served and is fixed and be equipped with adjusting hand wheel (5).

3. The pelletizing device for plastic flame retardant particles according to claim 1, characterized in that: threaded rod (4) surface cover is equipped with sleeve (19), just sleeve (19) run through casing (1) top, the internal surface of sleeve (19) be equipped with screw thread assorted thread groove on threaded rod (4) surface.

4. The pelletizing device for plastic flame retardant particles according to claim 1, characterized in that: the material guide plate (11) is positioned below the material guide roller (9), one end of the material guide plate (11) is fixedly connected with the partition plate (10), and the other end of the material guide plate is fixedly connected with the side wall of the inner cavity of the machine shell (1).

5. The pelletizing device for plastic flame retardant particles according to claim 1, characterized in that: the material guide plate (11) is arranged in an inclined mode, and a material discharge pipe is arranged at the lower end, inclined, of the material guide plate (11).

6. The pelletizing device for plastic flame retardant particles according to claim 1, characterized in that: the first screen (12) is opposite to the first material collecting box (14), and the second screen (13) is opposite to the second material collecting box (15).

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