Screw extruder easy to clean

Abstract

The utility model discloses a screw extruder easy to clean, which belongs to the field of plastic extruders and comprises a machine body and an extrusion pipe mounted on the machine body, the extrusion pipe is divided into a fixed pipe and a separation pipe along the central axis of the extrusion pipe, the fixed pipe is fixedly mounted on the machine body, and the separation pipe is fixedly mounted on the machine body. The separation pipe can move in the radial direction of the extrusion pipe to be attached to the fixed pipe to be sealed or separated from the fixed pipe, the extrusion pipe is divided into two parts, so that the screw rod and the inner cavity in the extrusion pipe are exposed, and at the moment, workers can clean the interior of the pipe rapidly and conveniently.

Description

TECHNICAL FIELD

[0001] The utility model discloses an easily clean spiral extruder belongs to the field of plastic extruder. BACKGROUND

[0002] Spiral extruder, a kind of equipment for heating and extruding granular material into other shape material.

[0003] Spiral extruder generally passes through heating material to make material melt in extruding by spiral rod, and material has viscosity after melting, after the completion of processing material, the internal material is difficult to completely discharge, and if it is not cleaned, it will cause material to adhere to the inner wall of pipeline, and the adhered material will cause charring during next processing, resulting in the decline of product quality, and the existing spiral extruder often needs to be disassembled during cleaning The whole screw rod is cleaned, time-consuming and laborious.

[0004] The present application provides a new solution to the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of easily clean spiral extruders to solve the above problems.

[0006] The utility model achieves the above-mentioned purposes by the following technical solutions, a kind of easily clean spiral extruder, including body and the extrusion pipe installed on the body, the extrusion pipe is divided into fixed pipe and separation pipe along its axis, the fixed pipe is fixedly installed with the body, the separation pipe can be moved to with fixed pipe adhering seal or separate along the radial direction of extrusion pipe.

[0007] Preferably, the separation surface of the fixed pipe and the separation pipe is vertically downward.

[0008] Preferably, the two ends of the separation pipe are synchronously moved by lifting device.

[0009] Preferably, the lifting device includes two lifting hydraulic cylinders, and the two lifting hydraulic cylinders are connected in parallel with the power-provided hydraulic pump through hydraulic pipe.

[0010] Preferably, the separation pipe is provided with protrusions for inserting the fixed pipe to increase its sealing.

[0011] Preferably, the surface of the fixed pipe is covered with an anti-scald cover for heat insulation.

[0012] Preferably, the end of the fixed pipe close to the discharge port is threadedly connected with a locking head, and the locking head can be sealingly abutted with the separation pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by splitting the extrusion tube in two, the spiral rod and inner cavity inside the extrusion tube are exposed, so that workers can clean the inside of the tube quickly and conveniently. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention during cleaning.

[0016] Reference numerals: 1. Body; 2. Fixing tube; 3. Separation tube; 4. Lifting device; 5. Protrusion; 6. Locking head. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0018] like Figure 1 , Figure 2 As shown, an easy-to-clean screw extruder includes a machine body 1 and an extrusion tube installed on the machine body 1. The extrusion tube is divided into a fixed tube 2 and a separating tube 3 along its central axis. The fixed tube 2 is fixedly installed to the machine body 1, and the separating tube 3 can move radially along the extrusion tube to fit and seal with the fixed tube 2 or separate from it.

[0019] This product utilizes a method of dividing the extrusion tube into a fixed tube 2 and a separating tube 3. By separating the fixed tube 2 and the separating tube 3, the inner cavity of the extrusion tube is exposed. At this point, workers can clean the inner wall of the extrusion tube without having to remove the screw rod from the extrusion tube, thus achieving a convenient cleaning effect.

[0020] The separation surface of the fixed tube 2 and the separation tube 3 is vertically downward, and the vertically downward feature of the fixed tube 2 is used to separate the fixed tube 2 and the separation tube 3 when the production is finished. At this time, since the separation tube 3 and the fixed tube 2 are just in the end stage of the working state, the temperature is relatively high, so that the material still maintains the fluid state. At this time, the material naturally drops in the direction of the separation tube 3 under the influence of gravity, so that the position which is difficult to clean on one side of the fixed tube 2 can be more clean, so as to reduce the cleaning difficulty. The material falling on the separation tube 3 contacts with air in the falling process, and a condensation film appears on the surface. At this time, the material does not adhere too tightly when contacting with the separation tube 3, so that the cleaning is facilitated.

[0021] The two ends of the separation tube 3 are synchronously moved through the lifting device 4. The lifting device 4 includes two lifting hydraulic cylinders which are connected in parallel with a power supply hydraulic pump through a hydraulic pipe. The hydraulic pump is used to pump hydraulic oil into the lifting hydraulic cylinders, so that the lifting hydraulic cylinders push the separation tube 3 to synchronously move, so as to avoid the tilt caused by the asynchronization during the movement, and the damage caused by the impact between the separation tube 3 and the fixed tube 2. After the separation tube 3 and the fixed tube 2 are attached, the larger pressure in the lifting hydraulic cylinder is used to make the separation surface between the separation tube 3 and the fixed tube 2 more closely attached.

[0022] The separation tube 3 is provided with the protrusion 5 which is used to insert the fixed tube 2 to increase the sealing property.

[0023] The surface of the fixed tube 2 is covered with the anti-scald cover which is used for heat insulation. On the one hand, the anti-scald cover can be used for heat preservation when the equipment is running. On the other hand, the anti-scald cover can avoid the workers from being scalded by the fixed tube 2 due to the visual angle problem of the fixed tube 2.

[0024] The end of the fixed tube 2 close to the discharge port is threadedly connected with the locking head 6 which can be sealingly abutted with the separation tube 3. The locking head 6 is threadedly connected with the fixed tube 2, so that the locking head 6 is close to the fixed tube 2. When the separation tube 3 and the fixed tube 2 are attached, the close locking head 6 abuts against the separation tube 3, so as to clamp the separation tube 3, and then the material is more smoothly squeezed out.

[0025] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but rather can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered exemplary and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0026] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. An easily cleanable screw extruder comprising a body and an extrusion tube mounted to the body, characterised in that, The extrusion tube is divided into a fixed tube and a separation tube along its axis, the fixed tube is fixedly installed with the machine body, and the separation tube can move radially to the fixed tube to seal or separate.

2. A screw extruder easy to clean according to claim 1, characterized in that: The separation surface of the fixed tube and the separation tube is vertically downward.

3. A screw extruder easy to clean according to claim 2, characterized in that: The two ends of the separation tube are synchronously moved through lifting devices.

4. A screw extruder easy to clean according to claim 3, characterized in that: The lifting devices include two lifting hydraulic cylinders which are connected in parallel with a power-provided hydraulic pump through hydraulic pipes.

5. A screw extruder easy to clean according to claim 4, characterized in that: The separation tube is provided with a protrusion for inserting the fixed tube to increase the sealing property.

6. An easy-to-clean screw extruder according to claim 1, characterized in that: The surface of the fixed tube is covered with an anti-scald cover for heat insulation.

7. A screw extruder easy to clean according to claim 5, characterized in that: One end of the fixed tube close to the discharge port is threadedly connected with a locking head which can sealingly abut against the separation tube.

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