Raw material cleaning device for flame-retardant polypropylene sheet production

Abstract

The utility model relates to the technical field of polypropylene particle cleaning, and discloses a raw material cleaning device for flame-retardant polypropylene sheet production, which comprises a box body, and a cleaning device is arranged on the box body. According to the raw material cleaning device for flame-retardant polypropylene sheet production, the mounting cylinder, the filter screen, the rotating seat, the positioning bolt, the first motor, a sliding rod, a second motor, a rotating rod, a gear, a sleeve, a gear ring and a mounting plate are arranged, the first motor is started to enable the mounting plate and the mounting cylinder to move downwards and sink into the water surface, the second motor is started, and the rotating rod is used for driving the rotating seat and the mounting cylinder to rotate; the polypropylene particles in the mounting cylinder are dewatered, so that water is prevented from dripping on the outer side of the box body, and meanwhile, subsequent drying of the polypropylene particles is facilitated; and by arranging the square rod, the cover plate, the screw rod and the U-shaped plate, the cover plate is positioned by utilizing the U-shaped plate, so that the mounting cylinder is conveniently blocked, and soaking, cleaning and water throwing of the polypropylene particles are facilitated.

Description

A raw material cleaning device for the production of flame-retardant polypropylene sheets Technical Field

[0001] This utility model relates to the field of polypropylene particle cleaning technology, specifically a raw material cleaning device for the production of flame-retardant polypropylene sheets. Background Technology

[0002] Polypropylene granules are dried and then heated and extruded. Molten polypropylene is extruded into sheets through a die using an extruder and then cooled and shaped.

[0003] Chinese patent CN212021320U discloses a plastic particle cleaning device, comprising a shell, a main shaft, stirring rods, a motor, and a filter plate. The bottom of the shell is an inverted frustum-shaped cone with a drain outlet. The main shaft is located inside the shell, with its two ends connected to the motor and stirring rods, respectively. There are at least two stirring rods, which are bent upwards and have increased curvature at their ends to form bends. The filter plate is located below the stirring rods and has a concave arc shape. The main shaft and stirring rods have interconnected flow channels, and the stirring rods have several spray holes communicating with these channels. This invention utilizes the stirring rods to create friction between the plastic particles, effectively removing dust. The flow channels and spray holes on the stirring rods allow water to be sprayed through the gaps between the plastic particles, further cleaning them. Simultaneously, the upward bend at the ends of the stirring rods agitates plastic particles that have accumulated due to centrifugal force, increasing the water spray area.

[0004] However, the device still has the following drawbacks: While it uses a motor-driven stirring rod to agitate and clean the plastic granules, it does not drain the water, resulting in excessive water stains on the surface of the granules after cleaning, which affects subsequent processing. Therefore, we propose a raw material cleaning device for flame-retardant polypropylene sheet production to solve this problem. Summary of the Invention

[0005] The purpose of this invention is to provide a raw material cleaning device for the production of flame-retardant polypropylene sheets, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a raw material cleaning device for the production of flame-retardant polypropylene sheets, comprising a housing, wherein a cleaning device is provided on the housing, and the cleaning device includes an installation part;

[0007] The mounting part includes a cover plate and a screw rod. A square rod is fixedly connected to the top surface of the cover plate, and a U-shaped plate is threaded onto the outer surface of the screw rod.

[0008] The power unit is installed inside the housing;

[0009] The power unit includes a first motor, a second motor, and a mounting plate. The bottom surfaces of the first motor and the second motor are fixedly connected to the top surface of the housing. Sliding rods are slidably provided on the upper and lower end surfaces of the mounting plate.

[0010] A further improvement is that the mounting part also includes a mounting cylinder, a filter screen, a rotating seat, positioning bolts, and a stirring rod. The outer surface of the mounting cylinder has a through hole, and the outer surface of the filter screen is fixedly connected to the inner wall of the mounting cylinder. By setting up the mounting cylinder and the filter screen, it is convenient to clean the polypropylene particles inside the mounting cylinder.

[0011] A further improvement is that the thread on the outer surface of the top of the positioning bolt penetrates the bottom surface of the rotating seat and extends to the top of the rotating seat, and the thread on the outer surface of the top of the positioning bolt penetrates the bottom surface of the mounting cylinder and extends into the interior of the mounting cylinder. By setting the positioning bolt, the installation and disassembly of the mounting cylinder are facilitated.

[0012] A further improvement is that the top surface of the stirring rod is fixedly connected to the bottom surface of the cover plate, and the outer surface of the square rod slides through the inner wall of the box and extends to the top of the box. By setting the cover plate, the square rod and the stirring rod, it is convenient to seal the top of the installation cylinder, and at the same time, the stirring rod is used for stirring.

[0013] A further improvement is that the right end face of the screw is rotatably connected to the left end face of the mounting cylinder through a bearing seat, and the outer surface of the U-shaped plate slides through the left end face of the mounting cylinder and extends into the interior of the mounting cylinder. By setting the screw and the U-shaped plate, it is convenient to limit the position of the cover plate.

[0014] A further improvement is that the power unit also includes a rotating rod, a gear, a sleeve, and a gear ring. The outer surface of the sliding rod is fixedly connected to the inner wall of the housing. The outer surface of the first motor output shaft rotates through the top surface of the housing and extends into the housing through the first bearing. The outer surface of the first motor output shaft is threaded through the top surface of the mounting plate and extends to the bottom of the mounting plate. The inner wall of the mounting plate extends into the interior of the rotating seat and is slidably connected to the inner wall of the rotating seat. By setting the first motor, the sliding rod, and the mounting plate, it is convenient to drive the mounting cylinder to move up and down, which facilitates the soaking and cleaning of polypropylene granules.

[0015] A further improvement is that the outer surface of the second motor output shaft rotates through the top surface of the housing and extends into the housing via a second bearing. The top surface of the rotating rod is fixedly connected to the bottom surface of the second motor output shaft. The sleeve is slidably fitted on the outer surface of the rotating rod. The inner wall of the mounting plate is rotatably connected to the outer surface of the sleeve via a third bearing. The gear is fixedly fitted on the outer surface of the sleeve, and the gear ring is fixedly fitted on the outer surface of the rotating seat. By setting up the second motor, gear, gear ring, sleeve, and rotating rod, the second motor drives the rotating rod to rotate, causing the mounting cylinder to rotate. This improves the cleaning effect of polypropylene granules and also allows for water removal from the polypropylene granules.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This raw material cleaning device for flame-retardant polypropylene sheet production, by setting up an installation cylinder, filter screen, rotating seat, positioning bolts, first motor, slide rod, second motor, rotating rod, gear, sleeve, gear ring, and installation plate, places polypropylene inside the installation cylinder. Starting the first motor causes the installation plate and installation cylinder to move downwards and sink to the water surface. Starting the second motor then uses the rotating rod to drive the rotating seat and installation cylinder to rotate, thus dislodging water from the polypropylene particles inside the installation cylinder, preventing water from dripping onto the outside of the chamber and facilitating subsequent drying of the polypropylene particles. By setting up a square rod, cover plate, screw, and U-shaped plate, the U-shaped plate positions the cover plate, facilitating sealing of the installation cylinder and promoting soaking, cleaning, and water dislodging of the polypropylene particles. By setting up a stirring rod, which remains stationary when the installation cylinder rotates, it facilitates agitation of the polypropylene particles inside the cylinder, improving the cleaning effect of the polypropylene particles. Attached Figure Description

[0017] Figure 1 is a three-dimensional structural diagram of the box body of this utility model;

[0018] Figure 2 is a three-dimensional sectional view of the box body of this utility model;

[0019] Figure 3 is a front sectional view of the three-dimensional structure of the cleaning device of this utility model;

[0020] Figure 4 is an enlarged view of the structure at point A in Figure 3;

[0021] Figure 5 is a three-dimensional cross-sectional view of the cleaning device of this utility model from the left side.

[0022] In the diagram: 1. Box body, 2. Cleaning device, 21. Mounting part, 22. Power unit, 211. Square rod, 212. Cover plate, 213. Mounting cylinder, 214. Filter screen, 216. Rotary seat, 217. Positioning bolt, 218. Stirring rod, 219. Screw, 210. U-shaped plate, 221. First motor, 222. Slide rod, 223. Second motor, 224. Rotating rod, 225. Gear, 226. Sleeve, 227. Gear ring, 228. Mounting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5. This utility model provides a technical solution: a raw material cleaning device for flame-retardant polypropylene sheet production, including a box 1, a cleaning device 2 provided on the box 1, and the cleaning device 2 including a mounting part 21.

[0025] The mounting part 21 includes a cover plate 212 and a screw 219. A square rod 211 is fixedly connected to the top surface of the cover plate 212. A U-shaped plate 210 is threaded on the outer surface of the screw 219. The mounting part 21 also includes a mounting cylinder 213, a filter screen 214, a rotating seat 216, a positioning bolt 217, and a stirring rod 218.

[0026] The thread on the outer surface of the top of the positioning bolt 217 penetrates the bottom surface of the rotating seat 216 and extends to the top of the rotating seat 216. The thread on the outer surface of the top of the positioning bolt 217 penetrates the bottom surface of the mounting cylinder 213 and extends into the mounting cylinder 213.

[0027] The outer surface of the mounting cylinder 213 has a through hole, and the outer surface of the filter screen 214 is fixedly connected to the inner wall of the mounting cylinder 213.

[0028] The top surface of the stirring rod 218 is fixedly connected to the bottom surface of the cover plate 212. The outer surface of the square rod 211 slides through the inner wall of the box 1 and extends to the top of the box 1. By setting the stirring rod 218, when the mounting cylinder 213 rotates, the stirring rod 218 remains stationary, which facilitates the stirring of the polypropylene particles inside the placement cylinder and improves the cleaning effect of the polypropylene particles.

[0029] The right end face of the screw 219 is rotatably connected to the left end face of the mounting cylinder 213 through the bearing seat. The outer surface of the U-shaped plate 210 slides through the left end face of the mounting cylinder 213 and extends into the interior of the mounting cylinder 213. By setting the square rod 211, the cover plate 212, the screw 219 and the U-shaped plate 210, the U-shaped plate 210 is used to position the cover plate 212, which facilitates the sealing of the mounting cylinder 213 and facilitates the soaking, cleaning and water removal of polypropylene granules.

[0030] The power unit 22 is installed inside the housing 1;

[0031] The power unit 22 includes a first motor 221, a second motor 223 and a mounting plate 228. The bottom surfaces of the first motor 221 and the second motor 223 are fixedly connected to the top surface of the housing 1. The mounting plate 228 has a sliding rod 222 slidably passing through its upper and lower end surfaces. The power unit 22 also includes a rotating rod 224, a gear 225, a sleeve 226 and a gear ring 227.

[0032] The outer surface of the slide bar 222 is fixedly connected to the inner wall of the housing 1, and the outer surface of the output shaft of the first motor 221 rotates through the top surface of the housing 1 and extends into the interior of the housing 1 via the first bearing.

[0033] The outer surface of the output shaft of the second motor 223 rotates through the top surface of the housing 1 via the second bearing and extends into the interior of the housing 1. The top surface of the rotating rod 224 is fixedly connected to the bottom surface of the output shaft of the second motor 223. The sleeve 226 is slidably sleeved on the outer surface of the rotating rod 224. The outer surface of the output shaft of the first motor 221 is threaded through the top surface of the mounting plate 228 and extends to the bottom of the mounting plate 228. The inner wall of the mounting plate 228 extends into the interior of the rotating seat 216 and is slidably connected to the inner wall of the rotating seat 216.

[0034] The inner wall of the mounting plate 228 is rotatably connected to the outer surface of the sleeve 226 via a third bearing. The gear 225 is fixedly sleeved on the outer surface of the sleeve 226, and the gear ring 227 is fixedly sleeved on the outer surface of the rotating seat 216. By setting up the mounting cylinder 213, filter screen 214, rotating seat 216, positioning bolt 217, first motor 221, slide rod 222, second motor 223, rotating rod 224, gear 225, sleeve 226, gear ring 227, and mounting plate 228, polypropylene is placed inside the mounting cylinder 213. The first motor 221 is started, causing the mounting plate 228 and mounting cylinder 213 to move downwards and sink into the water surface. The second motor 223 is started, and the rotating rod 224 drives the rotating seat 216 and mounting cylinder 213 to rotate, thus throwing water off the polypropylene particles inside the mounting cylinder 213 to prevent water from dripping onto the outside of the box and to facilitate the subsequent drying of the polypropylene particles.

[0035] In use, rotate screw 219 to move U-shaped plate 210 to the left, opening cover 212 upwards and placing polypropylene granules inside mounting cylinder 213. Then rotate screw 219 again to position cover 212 inside mounting cylinder 213. Start first motor 221 to drive mounting plate 228 downwards, causing mounting cylinder 213 and polypropylene granules to sink into water. Start second motor 223. Output shaft of second motor 223 drives rotating rod 224 to rotate. Rotating rod 224 drives sleeve 226 and gear 225 to rotate. Gear 225 drives gear ring 227 to rotate. Gear ring 227 drives rotating seat 216 and mounting cylinder 213 to rotate, causing stirring rod 218 to agitate polypropylene granules inside mounting cylinder 213. After cleaning, control first motor 221 to move mounting cylinder 213 above the water surface and increase output shaft speed of second motor 223 to spit water out of polypropylene granules inside mounting cylinder 213.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw material cleaning device for the production of flame-retardant polypropylene sheets, comprising a housing (1), characterized in that: A cleaning device (2) is provided on the housing (1). The cleaning device (2) includes a mounting part (21). The mounting part (21) includes a cover plate (212) and a screw (219). A square rod (211) is fixedly connected to the top surface of the cover plate (212). A U-shaped plate (210) is threaded on the outer surface of the screw (219). A power unit (22) is provided inside the housing (1). The power unit (22) includes a first motor (221), a second motor (223), and a mounting plate (228). The bottom surfaces of the first motor (221) and the second motor (223) are fixedly connected to the top surface of the housing (1). A sliding rod (222) is slidably provided through the upper and lower end surfaces of the mounting plate (228).

2. The raw material cleaning device for flame-retardant polypropylene sheet production according to claim 1, characterized in that: The mounting part (21) also includes a mounting cylinder (213), a filter screen (214), a rotating seat (216), a positioning bolt (217), and a stirring rod (218). The outer surface of the mounting cylinder (213) is provided with a through hole, and the outer surface of the filter screen (214) is fixedly connected to the inner wall of the mounting cylinder (213).

3. The raw material cleaning device for flame-retardant polypropylene sheet production according to claim 2, characterized in that: The outer surface of the top end of the positioning bolt (217) is threaded through the bottom surface of the rotating seat (216) and extends to the top of the rotating seat (216). The outer surface of the top end of the positioning bolt (217) is threaded through the bottom surface of the mounting cylinder (213) and extends to the inside of the mounting cylinder (213).

4. The raw material cleaning device for flame-retardant polypropylene sheet production according to claim 2, characterized in that: The top surface of the stirring rod (218) is fixedly connected to the bottom surface of the cover plate (212), and the outer surface of the square rod (211) slides through the inner wall of the box (1) and extends to the top of the box (1).

5. The raw material cleaning device for flame-retardant polypropylene sheet production according to claim 2, characterized in that: The right end face of the screw (219) is rotatably connected to the left end face of the mounting cylinder (213) through a bearing seat, and the outer surface of the U-shaped plate (210) slides through the left end face of the mounting cylinder (213) and extends into the interior of the mounting cylinder (213).

6. The raw material cleaning device for flame-retardant polypropylene sheet production according to claim 1, characterized in that: The power unit (22) also includes a rotating rod (224), a gear (225), a sleeve (226) and a gear ring (227). The outer surface of the sliding rod (222) is fixedly connected to the inner wall of the housing (1). The outer surface of the output shaft of the first motor (221) rotates through the top surface of the housing (1) through the first bearing and extends into the housing (1). The outer surface of the output shaft of the first motor (221) is threaded through the top surface of the mounting plate (228) and extends to the bottom of the mounting plate (228). The inner wall of the mounting plate (228) extends into the interior of the rotating seat (216) and is slidably connected to the inner wall of the rotating seat (216).

7. The raw material cleaning device for flame-retardant polypropylene sheet production according to claim 6, characterized in that: The outer surface of the output shaft of the second motor (223) rotates through the top surface of the housing (1) and extends into the interior of the housing (1) via the second bearing. The top surface of the rotating rod (224) is fixedly connected to the bottom surface of the output shaft of the second motor (223). The sleeve (226) is slidably sleeved on the outer surface of the rotating rod (224). The inner wall of the mounting plate (228) is rotatably connected to the outer surface of the sleeve (226) via the third bearing. The gear (225) is fixedly sleeved on the outer surface of the sleeve (226). The gear ring (227) is fixedly sleeved on the outer surface of the rotating seat (216).

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