CN213291264U

CN213291264U - Plastic extruder

Info

Publication number: CN213291264U
Application number: CN202021045904.3U
Authority: CN
Inventors: 张侃侃
Original assignee: Panan Jianshan Zhejiang Arts And Crafts Plastics Factory
Current assignee: Panan Jianshan Zhejiang Arts And Crafts Plastics Factory
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-05-28
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses a plastic extruder, including the feed cylinder and extrude the mouth, extrude a mouthful fixed connection at the front end surface intermediate position of feed cylinder, the inside fixedly connected with filter screen of feed cylinder, and the rear end position of filter screen installs the scraper blade, and the rear side surface of filter screen is hugged closely to the front end of scraper blade. This plastics extruder, the accessible is pressed the clearance ring, make the clearance ring encircle the clearance pole downstream of moving the lower extreme, make the clearance pole promote the scraper blade that the lower extreme is connected and slide at the filter screen rear side surface, at scraper blade downstream's in-process, the plastic blockage of scraping the hook and hooking the filter screen rear side surface that the scraper blade side set up, make the plastic blockage break away from the filter screen surface, and pile up the collecting vat that enters into the scraper blade inboard through the clearance of scraping the hook, then take out the scraper blade through opening solid fixed ring, collect the jam in unison, make the extrusion opening of extruder can normally work, the effect of clearance filter screen surface has been reached.

Description

Plastic extruder

Technical Field

The utility model belongs to the technical field of the plastics extruder clearance and specifically relates to a plastics extruder.

Background

The plastic extruder heats the plastic to be in a viscous flow state, passes through a discharge die orifice with a certain shape under the condition of pressurization to form a continuous body with a cross section similar to the shape of the discharge die orifice, then cools the continuous body to change the plastic with a certain geometric shape and size from a viscous flow state to a high elastic state, and finally cools and shapes the plastic into a glass state to obtain the required product.

At present, because an extruder often adopts recycled old plastics to extrude plastic products, molten thermoplastic plastics in a machine barrel of the plastic extruder often inevitably mix with impurities, most of the existing plastic extruders adopt a technical scheme of adding a filter screen to a tail end opening of the machine barrel to solve the problem of filtering the impurities, but the filtering effect on the molten plastics in the machine barrel is influenced after a plurality of impurities are accumulated on the filter screen, and even the plastic products are seriously blocked and cannot be discharged from a discharge die orifice.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastic extruder to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a plastic extruder, includes the feed cylinder and extrudes the mouth, extrude a mouthful fixed connection in the front end surface intermediate position of feed cylinder, the inside fixedly connected with filter screen of feed cylinder, and the rear end position of filter screen installs the scraper blade, and the rear side surface of filter screen is hugged closely to the front end of scraper blade.

In a further embodiment, the front end of the charging barrel is fixedly sleeved with a fixing ring, and the front end of the fixing ring is fixedly sleeved with a filtering ring on the surface of the charging barrel.

In a further embodiment, the filter ring extends to the interior of the cartridge and the filter screen is fixedly attached to the interior of the filter ring.

In a further embodiment, a cleaning rod is arranged between the fixing ring and the filtering ring and extends to the interior of the charging barrel, and the upper end of the cleaning rod is fixedly connected with the cleaning ring.

In a further embodiment, the outer part of the cleaning rod is sleeved with a loop rod in a sliding manner, and the upper end of the scraper is fixedly connected to the bottom end of the cleaning rod.

In a further embodiment, a collecting groove is formed in the middle of the inner side surface of the scraping plate, and the upper end and the lower end of the inner side surface of the scraping plate are fixedly connected with transversely arranged scraping hooks.

Compared with the prior art, the beneficial effects of the utility model are that: this plastics extruder, through setting up clearance pole isotructure, after the task of having carried out plastics extrusion, if the condition of filter screen jam has taken place, can be through pressing the clearance ring, make the clearance ring drive the clearance pole downstream of lower extreme, make the clearance pole promote the scraper blade that the lower extreme is connected and slide at the filter screen rear side surface, at scraper blade downstream's in-process, the plastic blockage of filter screen rear side surface is hooked to the scraping hook that the scraper blade side set up, make the plastic blockage break away from the filter screen surface, and pile up the collecting vat that enters into the scraper blade inboard through the clearance of scraping the hook, then take out the scraper blade through opening solid fixed ring, unify the collection to the blockage, make the extrusion mouth of extruder can normally work, the effect of clearance filter screen surface has been reached.

Drawings

Fig. 1 is a schematic perspective view of a plastic extruder.

FIG. 2 is a front sectional structural view of a plastic extruder.

FIG. 3 is a side cross-sectional structural view of a scraper of the plastic extruder.

In the figure: 1. a charging barrel; 2. an extrusion port; 3. a fixing ring; 4. cleaning a ring; 5. cleaning the rod; 51. a loop bar; 6. a squeegee; 61. collecting tank; 62. scraping a hook; 7. a filter ring; 8. and (5) filtering by using a filter screen.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, in the embodiment of the present invention, a plastic extruder comprises a charging barrel 1 and an extrusion port 2, the extrusion port 2 is fixedly connected to a middle position of a front end surface of the charging barrel 1, a fixing ring 3 is fixedly sleeved on the front end of the charging barrel 1, a filtering ring 7 is fixedly sleeved on a front end position of the fixing ring 3, the filtering ring 7 is used for fixing and installing a filter screen 8 in daily use, the filter screen 8 is fixedly connected to the inside of the filtering ring 7, a cleaning rod 5 is installed between the fixing ring 3 and the filtering ring 7 and extends to the inside of the charging barrel 1, a cleaning ring 4 is fixedly connected to an upper end of the cleaning rod 5, a loop rod 51 is slidably sleeved on an outside of the cleaning rod 5, an upper end of a scraper 6 is fixedly connected to a bottom end of the cleaning rod 5, the filter screen 8 is fixedly connected to the inside of the charging barrel 1, the filter screen 8 is used for filtering impurities of thermoplastic materials during, and the rear end of the filter screen 8 is provided with a scraper 6, the middle position of the inner side of the scraper 6 is provided with a collecting groove 61, the upper end and the lower end of the inner side of the scraper 6 are fixedly connected with a transversely arranged scraper hook 62, the front end of the scraper 6 is tightly attached to the rear side surface of the filter screen 8, by arranging a cleaning rod 5 and other structures, after the task of plastic extrusion is completed, if the filter screen 8 is blocked, the cleaning ring 4 is pressed to drive the cleaning rod 5 at the lower end to move downwards, so that the cleaning rod 5 pushes the scraper 6 connected with the lower end to slide on the rear side surface of the filter screen 8, in the process of downward movement of the scraper 6, the scraper hook 62 arranged on the side surface of the scraper 6 hooks the plastic blockage on the rear side surface of the filter screen 8, so that the plastic blockage is separated from the surface of the filter screen 8, and enters the collecting groove 61 on the inner side of the scraper 6 after, then take out scraper blade 6 through opening solid fixed ring 3, collect the plug in unison for extrusion opening 2 of extruder can normally work, has reached the effect on clearance filter screen 8 surface.

The utility model discloses a theory of operation is: after the task of having carried out plastics and extruding, if the condition that filter screen 8 blockked up has taken place, can be through pressing clearance ring 4, make clearance ring 4 drive clearance pole 5 downstream of lower extreme, make clearance pole 5 promote the scraper blade 6 that the lower extreme is connected and slide at filter screen 8 rear side surface, at the in-process of scraper blade 6 downstream, the plastic blockage of scraper blade 8 rear side surface is hooked with the scraping hook 62 that scraper blade 6 side set up, make the plastic blockage break away from filter screen 8 surface, and pile up the collecting vat 61 that enters into scraper blade 6 inboard through the clearance of scraping hook 62, then take out scraper blade 6 through opening solid fixed ring 3, collect the jam in unison.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a plastic extruder, includes feed cylinder (1) and extrudes mouth (2), extrude mouth (2) fixed connection at the front end surface intermediate position of feed cylinder (1), its characterized in that, the inside fixedly connected with filter screen (8) of feed cylinder (1), and the rear end position of filter screen (8) installs scraper blade (6), and the rear side surface of filter screen (8) is hugged closely to the front end of scraper blade (6).

2. The plastic extruder according to claim 1, characterized in that the front end of the barrel (1) is fixedly sleeved with a fixing ring (3), and the front end position of the fixing ring (3) is located on the surface of the barrel (1) and fixedly sleeved with a filter ring (7).

3. A plastic extruder as claimed in claim 2, characterized in that the filter ring (7) extends to the interior of the barrel (1) and the filter screen (8) is fixedly connected to the interior of the filter ring (7).

4. A plastic extruder as claimed in claim 3, characterized in that a cleaning rod (5) is mounted between the fixing ring (3) and the filter ring (7) and extends into the barrel (1), the upper end of the cleaning rod (5) being fixedly connected with a cleaning ring (4).

5. The plastic extruder according to claim 4, characterized in that a sleeve rod (51) is slidably sleeved outside the cleaning rod (5), and the upper end of the scraper (6) is fixedly connected to the bottom end of the cleaning rod (5).

6. The plastic extruder according to claim 5, wherein a collecting groove (61) is formed in the middle of the inner side surface of the scraper (6), and the upper end and the lower end of the inner side surface of the scraper (6) are fixedly connected with transversely arranged scraping hooks (62).