Special single-screw extruder for granulating ultra-high molecular weight polyethylene

Abstract

The utility model provides a special single-screw extruder for ultra-high molecular weight polyethylene granulation, which relates to the field of extruders and comprises a base, a machine body is fixedly mounted at the top of the base, a feeding cylinder is fixedly mounted at the top of the machine body, a top cover is arranged at the top of the feeding cylinder, and a first motor is fixedly mounted at the top of the top cover. The output end of the first motor penetrates through the top cover and is fixedly provided with a connecting plate, a rotating shaft is arranged at the bottom of the connecting plate, a spiral guide plate is fixedly installed on the outer wall of the rotating shaft, an electric telescopic rod is fixedly installed at the top of the base, and a fixing disc is fixedly installed at the telescopic end of the electric telescopic rod; and a second motor is fixedly installed at the top of the fixing disc, a supporting plate is fixedly installed at the output end of the second motor and fixedly connected with the outer wall of the top cover, a positioning plate is fixedly installed on the outer wall of the supporting plate, and a positioning frame is fixedly installed at the top of the fixing disc. The spiral guide plate is convenient to clean, and the cleaning efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to extruder technical field especially relates to a kind of single screw special extruder for ultra-high molecular weight polyethylene granulation. BACKGROUND

[0002] Ultra-high molecular weight polyethylene is a kind of polyethylene variety with extremely high molecular weight. Its molecular chain is very long, which makes it have many excellent properties, such as extremely high wear resistance, corrosion resistance, impact resistance, etc., but also leads to its flowability extremely poor, with certain difficulty in processing. Single screw special extruder is mainly composed of driving motor, speed reducer, screw, barrel and die. This simple structure makes the equipment small in floor area, relatively easy to install and maintain.

[0003] In the prior art, when feeding, the traditional part of single screw special extruder needs to put raw materials into the feeding barrel first, and then the raw materials enter the extruder from the feeding barrel. When the raw materials are too much, the feeding barrel may be blocked, so the part of single screw special extruder is provided with spiral guide plates in the feeding barrel to prevent the feeding barrel from being blocked and improve the feeding efficiency. However, the material is easy to remain on the surface and gap of the spiral guide plate, and due to its complex structure, it is difficult to clean, which requires a lot of time and manpower, and it is difficult to ensure thorough cleaning. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of single screw special extruder for ultra-high molecular weight polyethylene granulation, which is convenient for cleaning spiral guide plate and improves cleaning efficiency.

[0005] The utility model is completed in this way, a kind of single screw special extruder for ultra-high molecular weight polyethylene granulation, including base, the base top fixed installation has organism, the organism top fixed installation has feeding barrel, the feeding barrel top is provided with top cover, the top cover top fixed installation has first motor, the output of first motor is through top cover and is fixedly installed with connecting plate, the connecting plate bottom is provided with rotating shaft, the rotating shaft outer wall is fixedly installed with spiral guide plate, the base top fixed installation has electric telescopic handle, the telescopic end of electric telescopic handle is fixedly installed with fixed disc, the fixed disc top fixed installation has second motor, the output of second motor is fixedly installed with support plate, the support plate is fixedly connected with the outer wall of top cover, the support plate outer wall is fixedly installed with positioning plate, the fixed disc top fixed installation has positioning frame, the positioning frame inner wall is fixedly installed with electromagnet, the electromagnet top fixed installation has spring, the spring top fixed installation has iron plate, the iron plate top fixed installation has placement plate, the placement plate outer wall is fixedly installed with pressure sensor.

[0006] In one specific embodiment of the utility model, the connecting plate bottom is provided with a slot, the slot inner wall is provided with a fixing groove, the fixing groove inner wall is provided with a threaded hole, the threaded hole is internally threadedly connected with a threaded rod, one end of the threaded rod is fixedly installed with a clamping block, and the threaded rod end away from the clamping block is fixedly installed with a handle.

[0007] In another specific embodiment of the utility model, a plug-in plate is slidably installed in the slot, the plug-in plate outer wall is provided with a clamping groove, and the plug-in plate bottom is fixedly connected with the rotating shaft.

[0008] In still another specific embodiment of the utility model, a reducer is fixedly installed on the machine body outer wall, and the reducer output end penetrates the machine body and is fixedly installed with a screw rod body.

[0009] In still another specific embodiment of the utility model, the top cover top penetrates and is fixedly installed with a feeding pipe, and the feeding cylinder inner wall is provided with a guide groove.

[0010] In still another specific embodiment of the utility model, the machine body one end is provided with an underwater granulator.

[0011] In still another specific embodiment of the utility model, the feeding cylinder top is provided with a sealing groove, and the top cover bottom is fixedly installed with a sealing ring.

[0012] In still another specific embodiment of the utility model, the iron plate outer wall is attached to the positioning frame inner wall.

[0013] The utility model has the beneficial effects due to the adoption of the above structure:

[0014] First, in the utility model, the staff starts the electromagnet, the iron plate is attracted downward, the spring is compressed, the pressure sensor is lowered, the staff starts the electric telescopic rod, the telescopic end of the electric telescopic rod is stretched, drives the top cover and the spiral flow guide plate to rise, the spiral flow guide plate leaves the feeding cylinder, then the staff starts the second motor, the output end of the second motor drives the supporting plate to rotate, and further drives the spiral flow guide plate to rotate 180 degrees, the staff starts the electric telescopic rod, the telescopic end of the electric telescopic rod is retracted, drives the spiral flow guide plate to descend, so the staff can start cleaning the spiral flow guide plate, and the cleaning efficiency is improved.

[0015] Second, in the utility model, when replacing, the staff rotates the handle, the handle drives the threaded rod to rotate, the threaded rod moves along the threaded hole, the clamping block leaves the clamping groove, at this time, the staff can pull out the plug-in plate, replace the new spiral flow guide plate, insert the plug-in plate into the slot, rotate the handle reversely, the clamping block enters the clamping groove, so the replacement is completed, and the replacement efficiency is improved. DRAWINGS

[0016] Figure 1 The utility model provides a kind of overall perspective view in the extruder of single screw special for ultra-high molecular weight polyethylene granulation in the utility model;

[0017] Figure 2 The utility model provides a kind of inside structure perspective view in the feeding cylinder in the extruder of single screw special for ultra-high molecular weight polyethylene granulation in the utility model;

[0018] Figure 3 The utility model provides a kind of fixed disc perspective view in the extruder of single screw special for ultra-high molecular weight polyethylene granulation in the utility model;

[0019] Figure 4 The utility model provides a kind of inside structure perspective view in the positioning frame in the extruder of single screw special for ultra-high molecular weight polyethylene granulation in the utility model;

[0020] Figure 5 The utility model provides a kind of connecting plate sectional view in the extruder of single screw special for ultra-high molecular weight polyethylene granulation in the utility model;

[0021] Figure 6 The utility model provides a kind of machine body sectional view in the extruder of single screw special for ultra-high molecular weight polyethylene granulation in the utility model.

[0022] Legend: 1, base; 2, speed reducer; 3, machine body; 4, underwater granulator; 5, electric telescopic rod; 6, feeding cylinder; 7, guide groove; 8, sealing groove; 9, sealing ring; 10, top cover; 11, feeding pipe; 12, first motor; 13, connecting plate; 14, rotating shaft; 15, spiral guide plate; 16, fixed disc; 17, second motor; 18, support plate; 19, positioning plate; 20, positioning frame; 21, electromagnet; 22, spring; 23, iron plate; 24, placing plate; 25, pressure sensor; 26, slot; 27, plugboard; 28, fixed groove; 29, screw hole; 30, threaded rod; 31, clamping block; 32, handle; 33, clamping groove; 34, screw body. DETAILED DESCRIPTION

[0023] The specific embodiments of the utility model are described in detail below in combination with the drawings, but the description of embodiment is not the limitation of technical scheme, and any formal change according to the concept of the utility model but not substantial change should be regarded as the protection scope of the utility model.

[0024] In the following description, the directional or positional concepts of up, down, left, right, front and back are all based on the position shown in the corresponding drawing, so it cannot be understood as the special limitation of the technical scheme provided by the utility model.

[0025] Please refer to Figures 1 to 6The utility model relates to a single screw special extruder of ultra high molecular weight polyethylene granulation, including base 1, the base 1 top fixed mounting has organism 3, the organism 3 top fixed mounting has feeding cylinder 6, the feeding cylinder 6 top is provided with top cover 10, the top cover 10 top fixed mounting has first motor 12, the output of first motor 12 penetrates top cover 10 and is fixedly installed with connecting plate 13, the connecting plate 13 bottom is provided with rotating shaft 14, the rotating shaft 14 outer wall fixed mounting has spiral guide vane 15, the base 1 top fixed mounting has electric telescopic handle 5, the telescopic end of electric telescopic handle 5 is fixedly installed with fixed disc 16, the fixed disc 16 top fixed mounting has second motor 17, the output of second motor 17 is fixedly installed with support plate 18, the support plate 18 is fixedly connected with top cover 10 outer wall, the support plate 18 outer wall fixed mounting has locating plate 19, the fixed disc 16 top fixed mounting has locating frame 20, the locating frame 20 inner wall fixed mounting has electromagnet 21, the electromagnet 21 top fixed mounting has spring 22, the spring 22 top fixed mounting has iron plate 23, the iron plate 23 top fixed mounting has placing plate 24, the placing plate 24 outer wall fixed mounting has pressure sensor 25.

[0026] The connecting plate 13 bottom is provided with the slot 26, the slot 26 inner wall is provided with fixed slot 28, the fixed slot 28 inner wall is provided with threaded hole 29, the threaded hole 29 is screw connected with threaded rod 30, one end of threaded rod 30 is fixedly installed with clamping block 31, the threaded rod 30 is fixedly installed with handle 32 away from clamping block 31.

[0027] The slot 26 is slidably installed with the plugboard 27, the plugboard 27 outer wall is provided with clamping groove 33, the plugboard 27 bottom is fixedly connected with rotating shaft 14.

[0028] The outer wall of the body 3 is fixedly installed with a speed reducer 2, and the output end of the speed reducer 2 penetrates the body 3 and is fixedly installed with a screw body 34.

[0029] The top cover 10 top penetrates and is fixedly installed with feeding pipe 11, and the inner wall of the feeding cylinder 6 is provided with guide groove 7. The guide groove 7 allows the ultra-high material to be extruded, reducing the degradation of the ultra-high molecular weight.

[0030] One end of the body 3 is provided with an underwater pelletizer 4. The ultra high molecular weight polyethylene has poor flowability and cannot be granulated by a spring, so underwater pelletization is adopted.

[0031] The top of the feeding cylinder 6 is provided with a sealing groove 8, and the bottom of the top cover 10 is fixedly installed with a sealing ring 9. The sealing property is increased.

[0032] The outer wall of the iron plate 23 is fitted with the inner wall of the locating frame 20. The iron plate 23 is prevented from tilting.

[0033] Please continue to refer to Figures 1 to 6 The working process of the single-screw special extruder for granulating ultra-high molecular weight polyethylene is as follows:

[0034] Firstly, the staff starts the electromagnet 21, the iron plate 23 is attracted downward, the spring 22 is compressed, and the pressure sensor 25 is lowered;

[0035] Then, the staff starts the electric telescopic rod 5, the telescopic end of the electric telescopic rod 5 is stretched, the top cover 10 and the spiral guide plate 15 are lifted, and the spiral guide plate 15 leaves the feeding cylinder 6;

[0036] Further, the staff starts the second motor 17, the output end of the second motor 17 drives the support plate 18 to rotate, and then drives the spiral guide plate 15 to rotate by 180 degrees;

[0037] Then, the staff starts the electric telescopic rod 5, the telescopic end of the electric telescopic rod 5 is retracted, and the spiral guide plate 15 is lowered, so that the staff can start to clean the spiral guide plate 15, and the cleaning efficiency is improved;

[0038] Finally, the telescopic end of the electric telescopic rod 5 is stretched, the spiral guide plate 15 is lifted, the electromagnet 21 is turned off, the elastic force of the spring 22 pushes the iron plate 23 and the pressure sensor 25 to rise, the output end of the second motor 17 reversely rotates until the positioning plate 19 contacts with the pressure sensor 25, the pressure sensor 25 alarms, and the second motor 17 stops working to prevent over-rotation, at this time, the spiral guide plate 15 moves above the feeding cylinder 6, the telescopic end of the electric telescopic rod 5 is retracted, and the spiral guide plate 15 is reset. When replacing, the staff rotates the handle 32, the handle 32 drives the threaded rod 30 to rotate, the threaded rod 30 moves along the threaded hole 29, the clamping block 31 leaves the clamping groove 33, at this time, the staff can pull out the plug-in plate 27, replace the new spiral guide plate 15, insert the plug-in plate 27 into the plug-in slot 26, reversely rotate the handle 32, the clamping block 31 enters the clamping groove 33, and thus the replacement is completed, and the replacement efficiency is improved.

[0039] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still belongs to the protection scope of the present application.

Claims

1. An ultra-high molecular weight polyethylene pelletizing single screw dedicated extruder comprising a base (1), characterized in that: The base (1) top fixedly installed organism (3), the organism (3) top fixedly installed feed cylinder (6), the feed cylinder (6) top is provided with top cover (10), the top cover (10) top fixedly installed with first motor (12), the output end of first motor (12) penetrates top cover (10) and is fixedly installed with connecting plate (13), the connecting plate (13) bottom is provided with rotating shaft (14), the rotating shaft (14) outer wall is fixedly installed with spiral guide vane (15), the base (1) top fixedly installed electric telescopic rod (5), the telescopic end of electric telescopic rod (5) is fixedly installed with fixed disc (16), the fixed disc (16) top fixedly installed with second motor (17), the output end of second motor (17) is fixedly installed with support plate (18), the support plate (18) and top cover (10) outer wall are fixedly connected, the support plate (18) outer wall is fixedly installed with positioning plate (19), the fixed disc (16) top fixedly installed with positioning frame (20), the positioning frame (20) inner wall is fixedly installed with electromagnet (21), the electromagnet (21) top fixedly installed with spring (22), the spring (22) top fixedly installed with iron plate (23), the iron plate (23) top fixedly installed with placing plate (24), the placing plate (24) outer wall is fixedly installed with pressure sensor (25).

2. The UHMW PE pelletizing single screw dedicated extruder of claim 1, characterized in that: The connecting plate (13) bottom is provided with the slot (26), the slot (26) inner wall is provided with fixed slot (28), the fixed slot (28) inner wall is provided with threaded hole (29) penetrating, the threaded hole (29) is screwed with threaded rod (30) inside, the threaded rod (30) one end is fixedly installed with clamping block (31), the threaded rod (30) is fixedly installed with handle (32) away from the one end of clamping block (31).

3. The UHMW PE pelletizing single screw dedicated extruder of claim 2, characterized in that: The slot (26) inside is slidably installed with the plugboard (27), the plugboard (27) outer wall is provided with clamping groove (33) penetrating, the plugboard (27) bottom is fixedly connected with rotating shaft (14).

4. The UHMW PE pelletizing single screw dedicated extruder of claim 1, wherein: The organism (3) outer wall is fixedly installed with reducer (2), the output end of reducer (2) penetrates organism (3) and is fixedly installed with screw rod body (34).

5. The UHMW PE pelletizing single screw dedicated extruder of claim 1, wherein: The top cover (10) top penetrates and is fixedly installed with feed pipe (11), the feed cylinder (6) inner wall is provided with guide slot (7).

6. The UHMW PE pelletizing single screw dedicated extruder of claim 1, wherein: The organism (3) one end is provided with underwater granulator (4).

7. The UHMW PE pelletizing single screw dedicated extruder of claim 1, wherein: The feed cylinder (6) top is provided with sealing groove (8), the top cover (10) bottom is fixedly installed with sealing ring (9).

8. The UHMW PE pelletizing single screw dedicated extruder of claim 1, wherein: The iron plate (23) outer wall and positioning frame (20) inner wall are fitted.

Images