CN219427413U

CN219427413U - Automatic feeding device of plastic extruder

Info

Publication number: CN219427413U
Application number: CN202320310254.8U
Authority: CN
Inventors: 陈国银; 徐方
Original assignee: Nanjing Kangbo Plastic Co ltd
Current assignee: Nanjing Kangbo Plastic Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-07-28
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses an automatic feeding device of a plastic extruder, which comprises a feeding bin, wherein the feeding bin consists of a rectangular top bin at the upper part, a collecting bin at the middle part and a feeding pipe at the bottom, the feeding pipe is arranged on a charging barrel of the extruder, the collecting bin is funnel-shaped, and the feeding pipe is cylindrical; a screening mechanism, a distributing mechanism and a scraping mechanism are arranged in the feeding bin from top to bottom; the material screening mechanism comprises a screen plate and a vibrating structure, guide posts are arranged at the top and the bottom of the screen plate, the guide posts are sleeved with guide sleeves in a sliding mode, the vibrating structure comprises a knocking wheel which is eccentrically arranged, the knocking wheel is arranged on a first rotating shaft, and the first rotating shaft is connected with a driving mechanism. According to the utility model, the sieve plate is arranged to screen the plastic particle raw materials, so that the raw materials with overlarge particle size can be prevented from entering the extruder, and the extruded product is prevented from being blemished due to incomplete melting.

Description

Automatic feeding device of plastic extruder

Technical Field

The utility model relates to the technical field of plastic extrusion, in particular to an automatic feeding device of a plastic extruder.

Background

The plastic molding process is one of the important plastic molding process to convert plastic material into product, and the extrusion molding process is one of the important plastic molding process, and the process is one of the processes of heating, plasticizing, pushing forward with screw, pressurizing, cooling, setting and cutting.

The existing automatic feeding device has the following technical problems: (1) The plastic particle raw materials at the joint of the feeding bin and the charging barrel are easily affected by the heat in the charging barrel of the extruder to be heated and melted, and the melted plastic particle raw materials are easily adhered in the feeding bin to affect feeding; (2) The uneven particle size of the plastic particle raw material can influence the quality of the product, and the large particle raw material is not easy to melt, so that the defect of the product is caused; (3) Raw materials are all poured into the feeding bin, and are mutually extruded and piled up due to self gravity, so that unsmooth discharging possibly occurs, and dredging is needed.

Disclosure of Invention

1. The technical problems to be solved are as follows:

aiming at the technical problems, the utility model provides an automatic feeding device of a plastic extruder.

2. The technical scheme is as follows:

an automatic feeding device of a plastic extruder comprises a feeding bin, wherein the feeding bin consists of a rectangular top bin at the upper part, a collecting bin at the middle part and a feeding pipe at the bottom, the feeding pipe is arranged on a charging barrel of the extruder, the collecting bin is funnel-shaped, and the feeding pipe is cylindrical; a screening mechanism, a distributing mechanism and a scraping mechanism are arranged in the feeding bin from top to bottom;

the material sieving mechanism comprises a sieve plate and a vibrating structure, guide posts are arranged at the top and the bottom of the sieve plate, the guide posts are sleeved with guide sleeves in a sliding manner, the vibrating structure comprises a knocking wheel which is eccentrically arranged, the knocking wheel is arranged on a first rotating shaft, and the first rotating shaft is connected with the driving mechanism;

the material distribution mechanism comprises two material distribution rollers which are arranged in parallel, the material distribution rollers are connected with a second rotating shaft, and the second rotating shaft is connected with the driving mechanism;

the scraping mechanism comprises two shaft sleeves which are arranged up and down, the shaft sleeves are fixed on the inner wall of the feeding bin through connecting rods, third rotating shafts are arranged in the two shaft sleeves, scraping plates are arranged on the third rotating shafts and are attached to the inner wall of the feeding pipe, first bevel gears are arranged on the third rotating shafts, the first bevel gears are meshed with second bevel gears, the second bevel gears are arranged on fourth rotating shafts, and the fourth rotating shafts are connected with the driving mechanism.

Further, actuating mechanism includes driving motor, and driving motor's expansion end connects the fourth pivot, installs first belt pulley in the fourth pivot, and first belt pulley passes through the hold-in range and connects the second belt pulley, and the second belt pulley is installed in one of them second pivot, installs the third belt pulley in one of them second pivot, and the fourth belt pulley is connected through the hold-in range to the third belt pulley, and the fourth belt pulley is installed in first pivot, all installs the fifth belt pulley in two second pivots, and two fifth belt pulleys pass through the hold-in range and connect.

Further, a spring is arranged between the guide sleeve and the sieve plate and sleeved on the guide post.

Preferably, the guide posts are four and are respectively arranged at four corner positions of the sieve plate.

Preferably, a telescopic protective cover is arranged on the outer side of the spring.

Further, a material guide plate is arranged above the screen plate and is arranged on the inner wall of the top bin.

Further, a plurality of stirring paddles are arranged on the third rotating shaft.

Further, the cloth roller consists of a central roller and blades, and the blades are distributed on the central roller in an annular array.

3. The beneficial effects are that:

(1) According to the utility model, the sieve plate is arranged to screen the plastic particle raw materials, so that the raw materials with overlarge particle size can be prevented from entering the extruder, and the extruded product is prevented from being blemished due to incomplete melting;

(2) According to the utility model, the cloth roller is arranged for blanking, so that the blockage caused by raw material accumulation is prevented;

(3) According to the utility model, the scraper is arranged to scrape the raw materials which are melted and enter the feeding pipe, so that the unsmooth discharging caused by condensation after adhesion is prevented;

(4) The utility model adopts the driving motor as the only power source, and has simple and compact structure.

Drawings

FIG. 1 is a schematic view of the installation structure of an automatic feeding device of a plastic extruder;

FIG. 2 is a schematic structural view of an automatic feeding device of a plastic extruder according to the present utility model;

FIG. 3 is a schematic diagram of the portion A of FIG. 2 in accordance with the present utility model;

fig. 4 is a schematic structural view of a cloth roller according to the present utility model.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

As shown in figures 1 to 4 of the drawings,

an automatic feeding device of a plastic extruder comprises a feeding bin 1, wherein the feeding bin consists of a rectangular top bin 1-1 at the upper part, a collecting bin 1-2 at the middle part and a feeding pipe 1-3 at the bottom, the feeding pipe 1-3 is arranged on a charging barrel 2 of the extruder, the collecting bin 1-2 is funnel-shaped, and the feeding pipe 1-3 is cylindrical; a screening mechanism, a distributing mechanism and a scraping mechanism are arranged in the feeding bin 1 from top to bottom;

the material sieving mechanism comprises a sieve plate 3 and a vibrating structure, guide posts 4 are arranged at the top and the bottom of the sieve plate 3, the guide posts 4 are in sliding sleeve connection with guide sleeves 5, the vibrating structure comprises a knocking wheel 6 which is eccentrically arranged, the knocking wheel 6 is arranged on a first rotating shaft 7, and the first rotating shaft 7 is connected with a driving mechanism; the first rotating shaft 7 rotates to drive the knocking wheel 6 to rotate, and the knocking wheel 6 rotates to knock the screen plate 3, so that the screen plate 3 moves up and down and vibrates, plastic particle raw materials on the screen plate 3 are screened, the raw materials with overlarge particle sizes are screened out, and the raw materials are prevented from being melted to cause defects of products extruded by the extruder incompletely.

The material distributing mechanism comprises two material distributing rollers 8 which are arranged in parallel, the material distributing rollers 8 are connected with a second rotating shaft 9, and the second rotating shaft 9 is connected with a driving mechanism; the sieved plastic particle raw materials fall onto a material distribution roller 8, and the material distribution roller 8 is driven by a second rotating shaft 9 to complete material distribution.

The scraping mechanism comprises two shaft sleeves 10 which are arranged up and down, the shaft sleeves 10 are fixed on the inner wall of the feeding bin 1 through connecting rods 11, a third rotating shaft 11 is arranged in the two shaft sleeves 10, scraping plates 12 are arranged on the third rotating shaft 11, the scraping plates 12 are attached to the inner wall of the feeding pipe 1-3, a first bevel gear 13 is arranged on the third rotating shaft 11, the first bevel gear 13 is meshed with a second bevel gear 14, the second bevel gear 14 is arranged on a fourth rotating shaft 15, and the fourth rotating shaft 15 is connected with the driving mechanism. The fourth rotating shaft 15 rotates to drive the second bevel gear 14 to rotate, the second bevel gear 14 drives the meshed first bevel gear 13 to rotate, the third rotating shaft 11 rotates and drives the scraping plate 12 to rotate, and the scraping plate 12 scrapes away raw materials adhered on the feeding pipe 1-3, so that the influence of adhesion on blanking is prevented.

The driving mechanism comprises a driving motor 16, the movable end of the driving motor 16 is connected with a fourth rotating shaft 15, a first belt pulley 17 is arranged on the fourth rotating shaft 15, the first belt pulley 17 is connected with a second belt pulley 18 through a synchronous belt, the second belt pulley 18 is arranged on one of the second rotating shafts 9, a third belt pulley 19 is arranged on one of the second rotating shafts 9, the third belt pulley 19 is connected with a fourth belt pulley 20 through a synchronous belt, the fourth belt pulley 20 is arranged on the first rotating shaft 7, fifth belt pulleys 21 are arranged on the two second rotating shafts 9, and the two fifth belt pulleys 21 are connected through synchronous belts.

A spring 22 is arranged between the guide sleeve 5 and the sieve plate 3, and the spring 22 is sleeved on the guide post 4. The screen plate 3 is flexibly connected after the spring 22 is arranged, so that knocking noise can be reduced, and the service life can be prolonged.

The guide posts 4 are provided with four guide posts which are respectively arranged at four corner positions of the screen plate 3.

The outside of the spring 22 is provided with a telescopic shield 23. The common telescopic protection casing is the organ type protection casing, can prevent that plastic granules raw materials from getting into in the spring, causes the spring function inefficacy.

A material guiding plate 24 is arranged above the screen plate 3, and the material guiding plate 24 is arranged on the inner wall of the top bin 1-1.

A plurality of stirring paddles 25 are arranged on the third rotating shaft 11, and raw materials are prevented from being accumulated to cause unsmooth discharging through the stirring effect of the stirring paddles 25.

The material distributing roller 8 consists of a central roller 8-1 and blades 8-2, the blades 8-2 are distributed on the central roller 8-1 in an annular array, plastic particle raw materials firstly fall between the two blades 8-2, and the raw materials are poured into the collecting bin 1-2 below by rotating the material distributing roller 8.

While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model, and it is intended that the scope of the utility model shall be limited only by the claims appended hereto.

Claims

1. The automatic feeding device of the plastic extruder is characterized by comprising a feeding bin, wherein the feeding bin consists of a rectangular top bin at the upper part, a collecting bin at the middle part and a feeding pipe at the bottom, the feeding pipe is arranged on a charging barrel of the extruder, the collecting bin is funnel-shaped, and the feeding pipe is cylindrical; a screening mechanism, a distributing mechanism and a scraping mechanism are arranged in the feeding bin from top to bottom;

2. The automatic feeding device of a plastic extruder according to claim 1, wherein the driving mechanism comprises a driving motor, the movable end of the driving motor is connected with a fourth rotating shaft, a first belt pulley is arranged on the fourth rotating shaft, the first belt pulley is connected with a second belt pulley through a synchronous belt, the second belt pulley is arranged on one of the second rotating shafts, a third belt pulley is arranged on one of the second rotating shafts, the third belt pulley is connected with a fourth belt pulley through a synchronous belt, the fourth belt pulley is arranged on the first rotating shaft, fifth belt pulleys are arranged on both of the two second rotating shafts, and the two fifth belt pulleys are connected through synchronous belts.

3. An automatic feeding device of a plastic extruder according to claim 2, wherein a spring is arranged between the guide sleeve and the screen plate, and the spring is sleeved on the guide post.

4. An automatic feeding device for a plastic extruder according to claim 3, wherein the guide posts are provided in four positions at four corners of the screen plate.

5. An automatic feeding device for a plastic extruder according to claim 3 or 4, wherein the outer side of the spring is provided with a telescopic shield.

6. The automatic feeding device of a plastic extruder of claim 5, wherein a guide plate is arranged above the screen plate and is mounted on the inner wall of the top bin.

7. The automatic feeding device of a plastic extruder of claim 5, wherein a plurality of paddles are mounted on the third shaft.

8. The automatic feeding device of a plastic extruder according to claim 7, wherein the distribution roller consists of a central roller and blades, and the blades are distributed on the central roller in an annular array.