Anti-blocking device for vacuum exhaust pipe of extruder

Abstract

The utility model discloses an anti-blocking device for a vacuum exhaust pipe of an extruder, and belongs to the technical field of plastic processing equipment. Aiming at the problem that a vacuumizing pipe is easy to block in the prior art, the anti-blocking device for the vacuum exhaust pipe of the extruder is characterized in that a separable spiral buffer tank capable of being quickly replaced is arranged on an exhaust vacuum pipeline, and the buffer tank consists of a side wall, an upper wall and a lower wall, so that the exhaust vacuum pipeline is prevented from being blocked by materials; the separable spiral buffer tank device capable of being quickly replaced is additionally arranged on the exhaust vacuum pipeline, so that redundant accumulated materials are preferentially stored in the spiral buffer tank, and then the materials in the storage tank are cleaned out through the discharge port in time, or the spiral buffer tank is replaced in time, so that the vacuum pipeline is prevented from being blocked by the materials, and the service life of the vacuum pipeline is prolonged. And the production continuity and the product quality are improved. A rotary blade is arranged in the buffer tank and used for cutting up materials entering the tank body and preventing the materials from blocking a gas outlet to affect vacuumizing.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic processing equipment, specifically relating to an anti-clogging device for the vacuum extraction pipe of an extruder. Background Technology

[0002] Exhaust ports are installed at different process stages in the extruder barrel, such as the preheating section, preplasticizing section, and plasticizing section, to remove contaminants (such as grease, water vapor, and low-molecular-weight volatiles) generated at each stage, thus avoiding impurity residue. For example, an exhaust fan is used in the preheating section to remove air brought in by the raw material; a high-precision vacuum machine is used in the plasticizing section to thoroughly remove gaseous contaminants from the molten material.

[0003] In existing technology, vacuuming involves a single vacuum tube directly connected to a vacuum pump without any anti-clogging device. Its disadvantages include:

[0004] Disadvantage 1: Due to unreasonable screw design, material may flow back to the exhaust vacuum pipe, thereby clogging the exhaust vacuum pipe, affecting production continuity and reducing production efficiency.

[0005] Disadvantage 2: Due to improper design of the vacuum exhaust pipe, materials may be "hooked" or remain in the vacuum exhaust pipe for too long, causing expansion and blockage, which will affect the continuity of production and reduce production efficiency.

[0006] Disadvantage 3: Improper settings of production parameters such as temperature, feeding speed, and filter screen can lead to a large accumulation of material, which can clog the exhaust vacuum pipe, affect production continuity, and reduce production efficiency.

[0007] This invention aims to solve or at least alleviate the problem of vacuum tube blockage by providing an anti-blockage device for extruder vacuum tubes. Utility Model Content

[0008] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides an anti-clogging device for the vacuum pumping pipe of an extruder, which has the advantage of preventing the vacuum pipe from clogging.

[0009] To achieve the above objectives, this utility model provides an anti-clogging device for a vacuum extraction pipe of an extruder, characterized in that it includes: a side wall, an upper wall fixedly disposed at the top of the side wall, a lower wall fixedly disposed at the bottom of the side wall, a gas inlet penetrating through the surface of the lower wall, a gas outlet penetrating through the surface of the side wall, a motor fixedly disposed on the lower wall, a motor rotatably disposed inside the side wall, the motor being detachably connected to the motor, and a rotating blade fixedly disposed on the upper wall, the rotating blade being capable of rotating and cutting under the drive of the motor.

[0010] As a further improvement of this utility model, an outlet is provided through the upper wall surface, through which materials can be taken out.

[0011] As a further improvement of this utility model, a clamping device is detachably provided on the surface of the outlet, and the outlet can remain sealed when the clamping device is locked.

[0012] As a further improvement of this utility model, a filter screen is detachably provided at the bottom of the gas outlet, and the filter screen can prevent materials from entering the gas outlet.

[0013] As a further improvement of this utility model, an outlet 2 is also provided through the side of the side wall, and a valve is detachably provided at the bottom of the outlet 2.

[0014] As a further improvement of this utility model, the angle between the second outlet and the gas outlet is 180°.

[0015] As a further improvement of this utility model, a bracket is fixedly provided inside the side wall, and the device can rotate by passing through the bracket.

[0016] As a further improvement of this utility model, two rotating blades are provided on the upper part, and the two rotating blades can rotate synchronously.

[0017] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0018] This utility model discloses an anti-clogging device for a vacuum exhaust pipe of an extruder. A detachable and quickly replaceable spiral buffer tank is installed on the exhaust vacuum pipe. The buffer tank consists of a side wall, an upper wall, and a lower wall to prevent material from clogging the exhaust vacuum pipe and improve production continuity and efficiency.

[0019] By adding a detachable and quickly replaceable spiral buffer tank to the exhaust vacuum pipeline, excess accumulated material is preferentially stored in the spiral buffer tank, and then the material in the storage tank is promptly discharged through the discharge port, or the spiral buffer tank is replaced in time, thereby preventing material from clogging the vacuum pipeline and improving production continuity and product quality.

[0020] The buffer tank is equipped with a rotating blade to cut up the material entering the tank and prevent it from blocking the gas outlet and affecting the vacuuming process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an anti-clogging device for a vacuum extraction pipe of an extruder according to the present invention;

[0022] Figure 2 This is a disassembly diagram of an anti-clogging device for a vacuum extraction pipe of an extruder according to the present invention;

[0023] Figure 3 This is a schematic diagram of the filter screen of this utility model.

[0024] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0025] Side wall 1; Valve 2; Outlet 21; Upper wall 3; Clamping device 4; Outlet 1 5;

[0026] 6. Lower wall; 7. Gas inlet; 8. Rotating blade; 81. Shaft; 9. Filter screen; 10. Gas outlet;

[0027] Motor 11; Bracket 12. Detailed Implementation

[0028] 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.

[0029] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0030] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0031] In the embodiments, by Figure 1-3 Give, Figure 1 This is a schematic diagram of an anti-clogging device for a vacuum extraction pipe of an extruder according to the present invention;

[0032] Figure 2 This is a disassembly diagram of an anti-clogging device for a vacuum extraction pipe of an extruder according to the present invention. The rotating shaft 81 can be mounted on the bracket 12 for rotation.

[0033] Figure 3 This is a schematic diagram of the filter screen of this utility model. This figure is a cross-sectional view of the side wall 1, and the filter screen 9 is set at the bottom of the gas outlet 10.

[0034] An anti-clogging device for a vacuum extraction pipe of an extruder includes: a side wall 1, an upper wall 3 fixedly disposed at the top of the side wall 1, a lower wall 6 fixedly disposed at the bottom of the side wall 1, a gas inlet 7 penetrating through the surface of the lower wall 6, a gas outlet 10 penetrating through the surface of the side wall 1, a motor 11 fixedly disposed on the lower wall 6, a rotating shaft 81 rotatably disposed inside the side wall 1, the motor 11 being detachably connected to the rotating shaft 81, and a rotating blade 8 fixedly disposed on the rotating shaft 81, the rotating blade 8 being capable of rotating and cutting under the drive of the rotating shaft 81.

[0035] In use, this invention is connected to a vacuum pumping pipe. When vacuuming begins, gas enters through the gas inlet 7 and exits through the gas outlet 10. As the blade 8 rotates, it can shred large pieces of material entering the side wall 1 through the gas inlet 7, preventing them from clogging the gas outlet 10 and affecting continued vacuuming. Material sucked into the vacuum pumping pipe during vacuuming is shredded and retained inside the side wall 1. When the space inside the side wall 1 is insufficient or its airtightness is compromised, replacing the side wall 1 allows operation to continue.

[0036] In a preferred embodiment of this utility model, an outlet 5 is provided through the surface of the upper wall 3, through which material can be removed. Providing an outlet 5 on the upper wall 3 allows material remaining during vacuuming to be removed from the outlet 5, avoiding frequent replacement of the side wall 1, saving manpower and resources, and extending the service life of the side wall 1.

[0037] In a preferred embodiment of this invention, a clamping device 4 is detachably provided on the surface of the outlet 5, which keeps the outlet 5 sealed when the clamping device 4 is locked. Adding the clamping device 4 to the outlet 5 ensures good airtightness when the outlet 5 is closed, further guaranteeing the normal operation of this invention.

[0038] In a preferred embodiment of this invention, a filter screen 9 is detachably provided at the bottom of the gas outlet 10, and the filter screen 9 can prevent materials from entering the gas outlet 10. Providing a filter screen 9 at the bottom of the gas outlet 10 prevents fine materials from entering the gas outlet 10 and causing blockage during vacuuming.

[0039] As a preferred embodiment of this utility model, an outlet 21 is also provided through the side of the side wall 1, and a valve 2 is detachably provided at the bottom of the outlet 21. Large pieces of material can be taken out from the outlet 5, while fine or powdery materials are inconvenient to take out from the outlet 5. The outlet 21 provided through the side wall 1 makes it easy for fine or powdery materials to flow out from the outlet 21. When discharge is not required, closing the valve 2 can ensure airtightness.

[0040] In a preferred embodiment of this utility model, the angle between the second outlet 21 and the gas outlet 10 is 180°. By setting the second outlet 21 downwards and the gas outlet 10 upwards at a 180-degree angle, material can be easily discharged from the second outlet 21 during discharge. Simultaneously, the material's own weight is utilized, which can minimize the accumulation of material at the bottom of the gas outlet 10 during vacuuming.

[0041] In a preferred embodiment of this utility model, a bracket 12 is fixedly provided inside the side wall 1, and the rotating shaft 81 can be inserted through the bracket 12 for rotation. Inserting the rotating shaft 81 through the bracket 12 further ensures the stability of the rotating shaft 81 during rotation and reduces the longitudinal force on the motor 11.

[0042] In a preferred embodiment of this invention, two rotating blades 8 are provided on the rotating shaft 81, and the two rotating blades 8 can rotate synchronously. Providing two rotating blades 8 allows for better cutting of materials.

[0043] In summary, this utility model provides an anti-clogging device for an extruder vacuum pipe, which features a detachable and quickly replaceable spiral buffer tank installed on the exhaust vacuum pipe. The buffer tank consists of a side wall, an upper wall, and a lower wall, preventing material from clogging the exhaust vacuum pipe and improving production continuity and efficiency.

[0044] By adding a detachable and quickly replaceable spiral buffer tank to the exhaust vacuum pipeline, excess accumulated material is preferentially stored in the spiral buffer tank, and then the material in the storage tank is promptly discharged through the discharge port, or the spiral buffer tank is replaced in time, thereby preventing material from clogging the vacuum pipeline and improving production continuity and product quality.

[0045] The buffer tank is equipped with a rotating blade to cut up the material entering the tank and prevent it from blocking the gas outlet and affecting the vacuuming process.

[0046] 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 these 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 clog-prevention device for a vacuum extraction pipe of an extruder, characterized in that, include: A side wall (1) is provided with an upper wall (3) fixedly installed at the top of the side wall (1) and a lower wall (6) fixedly installed at the bottom of the side wall (1). A gas inlet (7) is provided through the surface of the lower wall (6) and a gas outlet (10) is provided through the surface of the side wall (1). A motor (11) is fixedly installed on the lower wall (6). A rotating shaft (81) is rotatably installed inside the side wall (1). The motor (11) is detachably connected to the rotating shaft (81). A rotating blade (8) is fixedly installed on the rotating shaft (81). The rotating blade (8) can rotate and cut under the drive of the rotating shaft (81).

2. The anti-clogging device for a vacuum extraction pipe of an extruder according to claim 1, characterized in that, The upper wall (3) has an outlet (5) through which material can be taken out.

3. The anti-clogging device for a vacuum extraction pipe of an extruder according to claim 2, characterized in that, The outlet (5) is detachably provided with a clamping device (4), which can keep the outlet (5) sealed when the clamping device (4) is locked.

4. The anti-clogging device for a vacuum extraction pipe of an extruder according to claim 1, characterized in that, A filter screen (9) is detachably provided at the bottom of the gas outlet (10), and the filter screen (9) can prevent material from entering the gas outlet (10).

5. The anti-clogging device for a vacuum extraction pipe of an extruder according to claim 1, characterized in that, The side wall (1) is also provided with an outlet two (21), and a valve (2) is detachably provided at the bottom of the outlet two (21).

6. The anti-clogging device for a vacuum extraction pipe of an extruder according to claim 5, characterized in that, The angle between the outlet 2 (21) and the gas outlet (10) is 180°.

7. The anti-clogging device for a vacuum extraction pipe of an extruder according to claim 1, characterized in that, A bracket (12) is fixedly installed inside the side wall (1), and the rotating shaft (81) can be inserted through the bracket (12) to rotate.

8. The anti-clogging device for a vacuum extraction pipe of an extruder according to claim 1, characterized in that, Two rotating blades (8) are provided on the rotating shaft (81), and the two rotating blades (8) can rotate synchronously.

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