CN213137746U

CN213137746U - Filter replacing device for extruder

Info

Publication number: CN213137746U
Application number: CN202022117821.7U
Authority: CN
Inventors: 王操; 王勇; 杨芳
Original assignee: Henan Anji Plastic Machinery Co ltd
Current assignee: Henan Anji Plastic Machinery Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-05-07
Anticipated expiration: 2030-09-24

Abstract

The utility model provides a filter replacing device for an extruder, which effectively solves the problems that the filter screen of the existing extruder needs to be stopped all the time when being replaced, thereby wasting a large amount of time, causing the loss of raw materials, the waste of energy and the increase of production cost; the technical scheme who solves is, drum including the level form, the drum left end is globular, there is vertical annular section of thick bamboo in the globular cavity of drum left end, annular section of thick bamboo outer fringe face is globular, the outer fringe of annular section of thick bamboo constitutes the ball pivot structure with the contact of spherical cavity inside wall, the filter screen is all installed in the cover of annular section of thick bamboo both ends, there is the plectane rather than coaxial in the annular section of thick bamboo, plectane outer fringe face and the contact of annular section of thick bamboo inside wall, the plectane can be along the annular section of thick bamboo horizontal slip, annular section of thick bamboo lower extreme has vertical play feed cylinder, it runs through the drum lateral wall and arranges the drum lower extreme in to go out the feed cylinder lower extreme, there is vertical pivot annular section of thick bamboo upper end, the pivot upper end runs through the drum and arranges the drum.

Description

Filter replacing device for extruder

Technical Field

The utility model relates to an industry extruder technical field, especially device is changed with filter to extruder.

Background

In the process of plastic extrusion, after long-time plasticization and heating of plastic melt, decomposition residues can be generated in the melt, and impurities in raw materials enter an extruder head, so that a flow channel can be blocked, and plastic products have defects and even can not be normally produced: in order to filter impurities, a filter screen is usually arranged between the head of the screw and an extrusion molding machine head to prevent the impurities and the impurities from entering the molding machine head and continuing the extrusion time, the impurities on the filter screen are gradually accumulated to cause the pressure rise of the machine head and the flow rate reduction, and when a certain filter screen is exceeded, the filter screen is broken, and the filter screen fails, the filter screen must be replaced; the whole operation process is dozens of minutes less and hours more from the die head removal, the cleaning, the filter screen replacement, the temperature rise again and the blank traction to the normal production extrusion, which causes the raw material loss, the energy waste and the production cost increase.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a device is changed to filter for extruder, the effectual filter screen of having solved current extruder need be shut down always when changing, extravagant plenty of time causes the problem that raw and other materials loss, the energy is extravagant, manufacturing cost increase.

The technical scheme includes that the device comprises a horizontal cylinder, the left end of the cylinder is spherical, a vertical annular cylinder is arranged in a spherical cavity at the left end of the cylinder, the outer edge surface of the annular cylinder is spherical, the outer edge of the annular cylinder is contacted with the inner side wall of the spherical cavity to form a spherical hinge structure, filter screens are covered and mounted at two ends of the annular cylinder, a circular plate coaxial with the annular cylinder is arranged in the annular cylinder, the outer edge surface of the circular plate is contacted with the inner side wall of the annular cylinder, and the circular plate can slide left and right along the annular cylinder; the annular cylinder lower extreme has vertical play feed cylinder, goes out the feed cylinder lower extreme and runs through the drum lateral wall and arranges the drum lower extreme in, and there is vertical pivot annular cylinder upper end, and the drum outside is arranged in to the pivot upper end running through the drum, and there is the rectangular block drum upper end, runs through the pin that has the level form on the rectangular block, and the pin other end runs through the pivot.

The utility model discloses the structure is ingenious, can realize can starting after short duration shut down, and the dead time that significantly reduces can effectively reduce the time that the change filter screen consumes, is favorable to improving the productivity.

Drawings

Fig. 1 is a front sectional view of the present invention.

Fig. 2 is a schematic view of the structure of the middle ring cylinder of the present invention.

Fig. 3 is a schematic diagram of the structure of the middle circular plate of the present invention.

Detailed Description

The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings.

The utility model comprises a horizontal cylinder 1, wherein the left end of the cylinder 1 is spherical, a vertical annular cylinder 2 is arranged in a spherical cavity at the left end of the cylinder 1, the outer edge of the annular cylinder 2 is spherical, the outer edge of the annular cylinder 2 is contacted with the inner side wall of the spherical cavity to form a spherical hinge structure, two ends of the annular cylinder 2 are respectively covered and provided with a filter screen 3, a circular plate 4 coaxial with the annular cylinder 2 is arranged in the annular cylinder 2, the outer edge surface of the circular plate 4 is contacted with the inner side wall of the annular cylinder 2, and the circular plate 4 can slide left and right along the annular cylinder 2; the lower extreme of the annular cylinder 2 is provided with a vertical discharging cylinder 5, the lower end of the discharging cylinder 5 penetrates through the side wall of the cylinder 1 and is arranged at the lower end of the cylinder 1, the upper end of the annular cylinder 2 is provided with a vertical rotating shaft 6, the upper end of the rotating shaft 6 penetrates through the cylinder 1 and is arranged at the outer side of the cylinder 1, the upper end of the cylinder 1 is provided with a rectangular block 7, a pin 8 with a horizontal shape penetrates through the rectangular block 7, and the other end of the pin 8 penetrates through the.

In order to limit the circular plate 4 and prevent the circular plate 4 from crushing the filter screen 3 on the left side, the left end and the right end in the cavity of the annular cylinder 2 are both provided with annular bulges 9.

In order to better seal the annular cylinder 2, the left end face and the right end face of the circular plate 4 are both provided with circular truncated cone-shaped bulges.

It is noted that in order to prevent the pin 8 from falling off, a bolt and a nut may be used instead.

During the use, the extruder is crowded the material in drum 1 through the right-hand member of drum 1, the material enters into annular cylinder 2 behind right side filter screen 3, plectane 4 moves left under the pressure until touching left annular arch 9, then the material is extruded through play feed cylinder 5 again, a period of time later, filter screen 3 needs to be changed, at this moment, shut down, then take out pin 8, make pivot 6 can rotate, manual rotation pivot 6, pivot 6 drives annular cylinder 2 and rotates, the rotation of annular cylinder 2 can be with the position change of two filter screens 3, then reinsert on pivot 6 and rectangular block 7 with pin 8, pivot 6 is fixed this moment, the start carries out normal work, wherein plectane 4 slides left under the pressure, the material can be extruded from play feed cylinder 5. The filter cloth 3 which has just been used can now be replaced.

The utility model discloses the structure is ingenious, can realize can starting after short duration shut down, and the dead time that significantly reduces can effectively reduce the time of changing filter screen 3 and expend, is favorable to improving the productivity.

Claims

1. The filter replacing device for the extruder is characterized by comprising a horizontal cylinder (1), wherein the left end of the cylinder (1) is spherical, a vertical annular cylinder (2) is arranged in a spherical cavity at the left end of the cylinder (1), the outer edge of the annular cylinder (2) is spherical, the outer edge of the annular cylinder (2) is in contact with the inner side wall of the spherical cavity to form a spherical hinge structure, filter screens (3) are respectively arranged at two ends of the annular cylinder (2) in a covering manner, a circular plate (4) coaxial with the annular cylinder (2) is arranged in the annular cylinder (2), the outer edge surface of the circular plate (4) is in contact with the inner side wall of the annular cylinder (2), and the circular plate (4) can slide left and right along the annular; the lower end of the annular cylinder (2) is provided with a vertical discharging cylinder (5), the lower end of the discharging cylinder (5) penetrates through the side wall of the cylinder (1) and is arranged at the lower end of the cylinder (1), the upper end of the annular cylinder (2) is provided with a vertical rotating shaft (6), the upper end of the rotating shaft (6) penetrates through the cylinder (1) and is arranged at the outer side of the cylinder (1), the upper end of the cylinder (1) is provided with a rectangular block (7), a horizontal pin (8) penetrates through the rectangular block (7), and the other end of the pin (8) penetrates through the rotating shaft (6).

2. The filter replacing device for the extruder of claim 1, wherein the annular cylinder (2) is provided with annular protrusions (9) at the left and right ends in the cavity.

3. The filter exchange device for the extruder according to claim 1, wherein the circular plate (4) has a truncated cone-shaped projection on each of the left and right end faces.