Plastic extruder with preheating function

Abstract

The utility model discloses a plastic extruder with a preheating function, which comprises an extruder main body and a preheating cylinder, one side of the extruder main body is fixedly connected with a motor, the output end of the motor is fixedly connected with an extrusion screw rod, a first control valve is arranged between the extruder main body and the preheating cylinder, a preheating component is arranged in the preheating cylinder, and the extrusion screw rod is fixedly connected with the motor. A turning part is arranged in the preheating cylinder, and the preheating part comprises a heat conduction cavity formed in the inner wall of the preheating cylinder, a plurality of electric heating pipes fixedly connected with the top of the heat conduction cavity respectively, and a liquid adding pipe fixedly connected with one side of the upper part of the heat conduction cavity. The plastic extruder solves the problems that when an existing plastic extruder is used, although plastic can be preheated through an electric heating wire, the contact area of the plastic and the electric heating wire is relatively small, the position of the plastic is relatively fixed, the preheating efficiency is low, and the practicability is insufficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic extruder, concretely to a plastic extruder with preheating function. BACKGROUND

[0002] The plastic extruder is a kind of equipment for plastic processing, mainly used to extrude the product of required shape by mold after the plastic raw material is heated and melted, and the plastic extruder has wide application in the plastic processing industry, and various shapes of plastic products, such as pipeline, profile and film, can be produced, in order to improve processing efficiency, the plastic raw material is usually preheated.

[0003] The existing patent CN216968610U discloses a plastic extruder with preheating function, the workbench top is installed with extruder main body, the workbench top surface is installed with preheating box, and the preheating box is internally installed with heating wire.In the utility model, the preheating box, the preheating cavity, the spiral conveying paddle, the chain wheel and the chain are used in cooperation, the preheating of plastic raw material is facilitated, the plastic raw material is stored in advance in the preheating cavity by the worker during operation, then the heating wire in the preheating box is started to heat the liquid in the preheating box, then the preheating cavity is used to preheat the plastic raw material in the preheating cavity, after preheating, the extruder main body is started to work, then the plastic raw material in the preheating cavity is driven by the spiral conveying paddle to enter the extruder main body through the discharge port to work under the driving action, which is simple in operation and convenient for preheating the raw material, and improves the working efficiency.

[0004] Based on the above patent search, and combined with the plastic extruder in the prior art, it is found that the above plastic extruder can preheat the plastic by the heating wire during use, but the contact surface between the plastic and the heating wire is relatively small, and the position of the plastic is relatively fixed, which reduces the preheating efficiency and leads to insufficient practicability. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a plastic extruder with preheating function to solve the problem that the existing plastic extruder can preheat the plastic by the heating wire during use, but the contact surface between the plastic and the heating wire is relatively small, and the position of the plastic is relatively fixed, which reduces the preheating efficiency and leads to insufficient practicability.

[0006] To achieve the above object, the utility model provides following technical scheme: a kind of plastic extruder with preheating function, including extruder main body and preheating cylinder, the one side of extruder main body is fixedly connected with motor, the output end of motor is fixedly connected with extrusion screw, first control valve is equipped between extruder main body and preheating cylinder, preheating part is equipped in preheating cylinder, overturning component is equipped in preheating cylinder;

[0007] The preheating part includes a heat-conducting cavity formed in the inner wall of the preheating cylinder, a plurality of electric heating pipes fixedly connected to the top of the heat-conducting cavity, a liquid feeding pipe fixedly connected to one side of the upper part of the heat-conducting cavity, a liquid outlet pipe fixedly connected to one side of the lower part of the heat-conducting cavity, a second control valve fixedly connected to the liquid outlet pipe, and thermal insulation cotton fixedly connected to the outer side of the preheating cylinder.

[0008] Preferably, the overturning component includes an overturning shaft connected to the preheating cylinder, overturning leaves fixedly connected to the outer side of the overturning shaft, a plurality of supporting rods fixedly connected to the outer side of the lower part of the overturning shaft, a fixed block fixedly connected to the supporting rods, pressing grooves respectively formed in the two sides of the fixed block, a pressing rod arranged in the pressing groove, a spring fixedly connected to one end of the pressing rod, a scraping plate fixedly connected to the other end of the pressing rod, and a power component for rotating the overturning shaft.

[0009] Preferably, the power component includes a driving wheel fixedly connected to the outer side of the extrusion screw, a belt connected to the driving wheel, a driven wheel connected to the belt, a rotating shaft fixedly connected to the driven wheel, a driving bevel gear fixedly connected to the outer side of the rotating shaft, and a driven bevel gear fixedly connected to the outer side of the overturning shaft.

[0010] Preferably, a feeding pipe is fixedly connected to one side of the top of the preheating cylinder, and a pipe cover is screwed to the top of the feeding pipe.

[0011] Preferably, a limiting groove is formed in the pressing rod, and a limiting rod is fixedly connected to the inner wall of the pressing groove, and the limiting rod and the limiting groove are in sliding connection.

[0012] Preferably, a supporting plate is fixedly connected to the top of the preheating cylinder, and the rotating shaft is rotatably connected to the supporting plate.

[0013] Preferably, a fixed ring is fixedly connected to each side of the extruder main body, a supporting leg is fixedly connected to each side of the bottom of the fixed ring, and an anti-skid base is fixedly connected to the bottom of the supporting leg.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By setting the extruder body, preheating cylinder and preheating parts, the heat conducting oil can be added to the heat conducting cavity, the heat conducting oil can be quickly heated by the electric heating pipe, the heat preservation cotton can be heat preservation, the heat loss can be reduced, the heat conducting oil can heat the plastic from the preheating cylinder side wall, the contact area of heat and plastic can be increased, thereby the plastic melting speed can be accelerated, thereby the preheating efficiency of plastic can be accelerated, thereby the processing efficiency can be improved, thereby the practicability and efficiency can be greatly improved.

[0016] 2. By setting the turning part, the turning shaft can drive the turning blade to rotate, the plastic can be turned, the plastic can be fully contacted with heat, the preheating efficiency is further improved, the spring is initially in a compressed state, the scraping plate can be always in contact with the inner wall of the preheating cylinder, the raw materials can be prevented from depositing, the raw materials can be scraped up, the residual raw materials can be scraped down, the raw materials can be prevented from adhering and remaining, thereby the practicability can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The left view provided by the utility model is shown in the figure;

[0018] Figure 2 The left view provided by the utility model is shown in the figure;

[0019] Figure 3 The left view provided by the utility model is shown in the figure; Figure 2 The left view provided by the utility model is shown in the figure;

[0020] Figure 4 The left view provided by the utility model is shown in the figure; Figure 3 The left view provided by the utility model is shown in the figure.

[0021] In the figure: 1, extruder body; 11, preheating cylinder; 12, motor; 13, extrusion screw; 14, first control valve; 21, heat conducting cavity; 22, electric heating pipe; 23, liquid inlet pipe; 24, liquid outlet pipe; 25, second control valve; 26, heat preservation cotton; 31, turning shaft; 32, turning blade; 33, support rod; 34, fixed block; 35, pressing groove; 36, pressing rod; 37, spring; 38, scraping plate; 41, driving wheel; 42, belt; 43, driven wheel; 44, rotating shaft; 45, driving bevel gear; 46, driven bevel gear; 51, feeding pipe; 52, pipe cover; 61, limiting groove; 62, limiting rod; 71, support plate; 81, fixed ring; 82, support leg; 83, anti-skid seat. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The utility model provides a kind of technical scheme: a kind of plastic extruder with preheating function, including extruder main body 1 and preheating cylinder 11, extruder main body 1 side is fixedly connected with motor 12, and motor 12 output end is fixedly connected with extrusion screw 13, first control valve 14 is equipped between extruder main body 1 and preheating cylinder 11, preheating part is equipped in preheating cylinder 11, preheating cylinder 11 is equipped with overturning component, preheating part includes heat conduction cavity 21 being opened in preheating cylinder 11 inner wall, multiple electric heating pipes 22 being fixedly connected with the top of heat conduction cavity 21 respectively, liquid feeding pipe 23 being fixedly connected with the upper side of heat conduction cavity 21, liquid outlet pipe 24 being fixedly connected with the lower side of heat conduction cavity 21, second control valve 25 being fixedly connected with liquid outlet pipe 24 and heat preservation cotton 26 being fixedly connected with the outside of preheating cylinder 11, and liquid outlet pipe 24 and liquid feeding pipe 23 are all communicated with heat conduction cavity 21, heat conduction oil can be added into heat conduction cavity 21 by liquid feeding pipe 23, heat conduction oil can be heated quickly by electric heating pipe 22, heat preservation cotton 26 can be heat preserved, heat loss is reduced, heat conduction oil can preheat plastic raw materials in preheating cylinder 11, and the contact area with plastic can be improved, preheating efficiency can be improved, first control valve 14 is opened, to facilitate that raw material after preheating falls into extruder main body 1, motor 12 can control extrusion screw 13 to produce extrusion to plastic, preheating cylinder 11 top side is fixedly connected with feeding pipe 51, and pipe cover 52 is screwed on the top of feeding pipe 51, feeding pipe 51 can be convenient to add raw materials into preheating cylinder 11, pipe cover 52 can be closed to feeding pipe 51, heat dissipation can be reduced, and preheating performance is guaranteed, and the both sides of extruder main body 1 are fixedly connected with fixed ring 81 respectively, the both sides of fixed ring 81 bottom are fixedly connected with support leg 82 respectively, support leg 82 bottom is fixedly connected with antiskid base 83, and extruder main body 1 can be stably supported and fixed using antiskid base 83 and support leg 82, to prevent the displacement of extruder main body 1, guarantee its processing efficiency.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4The turning part comprises a turning shaft 31 connected with the preheating cylinder 11, turning leaves 32 fixedly connected with the outer side of the turning shaft 31, a plurality of supporting rods 33 fixedly connected with the outer side of the lower part of the turning shaft 31, fixed blocks 34 fixedly connected with the supporting rods 33, pressing grooves 35 respectively arranged on the two sides of the fixed blocks 34, pressing rods 36 arranged in the pressing grooves 35, springs 37 fixedly connected with one end of the pressing rods 36, scraping plates 38 fixedly connected with the other end of the pressing rods 36, and power components for rotating the turning shaft 31. The turning shaft 31 is rotatably connected with the preheating cylinder 11. The pressing rods 36 are slidably connected with the pressing grooves 35. The scraping plates 38 are in contact with the inner wall of the preheating cylinder 11. The turning shaft 31 can drive the turning leaves 32 to rotate, and the turning leaves 32 can turn to turn the plastic raw materials, so that the plastic can be fully in contact with the inner wall of the preheating cylinder 11 and can be fully in contact with heat. The springs 37 are initially in a compressed state, can always push the worn scraping plates 38 to be in contact with the inner wall of the preheating cylinder 11, can scrape the raw materials, prevent the raw materials from depositing, and can scrape the residual raw materials to prevent the raw materials from adhering and remaining. The power components comprise a driving wheel 41 fixedly connected with the outer side of the extrusion screw 13, a belt 42 connected with the driving wheel 41, a driven wheel 43 connected with the belt 42, a rotating shaft 44 fixedly connected with the driven wheel 43, a driving bevel gear 45 fixedly connected with the outer side of the rotating shaft 44, and a driven bevel gear 46 fixedly connected with the outer side of the turning shaft 31. The driving bevel gear 45 is engaged with the driven bevel gear 46. The driving wheel 41 and the driven wheel 43 are drivingly connected through the belt 42. The extrusion screw 13 can drive the driving wheel 41 and the belt 42 to rotate, and then can control the driven wheel 43 and the rotating shaft 44 to rotate, and then can drive the driving bevel gear 45 to rotate, and then can drive the driven bevel gear 46 and the turning shaft 31 to rotate, so as to provide power for the rotation of the turning shaft 31. No additional power is needed, and the use and maintenance cost can be reduced. The preheating cylinder 11 is fixedly connected with a supporting plate 71. The rotating shaft 44 is rotatably connected with the supporting plate 71. The supporting plate 71 can support the rotating shaft 44 to improve the rotation stability of the rotating shaft 44 and prevent the rotating shaft 44 from swinging during rotation. A limiting groove 61 is arranged on the pressing rod 36. A limiting rod 62 is fixedly connected with the inner wall of the pressing groove 35. The limiting rod 62 is slidably connected with the limiting groove 61. The limiting rod 62 can slide in the limiting groove 61 to limit the movement distance of the pressing rod 36, and then can protect the spring 37 from being damaged due to excessive deformation.

[0025] Working principle: when working, the heat conducting oil is added into the heat conducting cavity 21 through the liquid adding pipe 23, then the electric heating pipe 22 is started, the electric heating pipe 22 can heat the heat conducting oil quickly, so that it can be heated quickly, then the pipe cover 52 is unscrewed, the raw material is added into the preheating cylinder 11, the motor 12 is started, the motor 12 can drive the extrusion screw 13 to rotate, the extrusion screw 13 can drive the driving wheel 41 to rotate, the driving wheel 41 can drive the belt 42 to rotate, the belt 42 can drive the driven wheel 43 to rotate, the driven wheel 43 can drive the rotating shaft 44 to rotate, the rotating shaft 44 can drive the driving bevel gear 45 to rotate, the driving bevel gear 45 can drive the driven bevel gear 46 to rotate, the driven bevel gear 46 can drive the turning shaft 31 to rotate, the turning shaft 31 can drive the turning blade 32 and the supporting rod 33 to rotate, the turning blade 32 can turn the raw material, so that it can be in full contact with heat, the preheating efficiency is improved, the supporting rod 33 can drive the fixed block 34 to rotate, the fixed block 34 can drive the scraping plate 38 to rotate, the scraping plate 38 can scrape the raw material on the bottom, so that it can not be on the bottom, thereby the preheating efficiency can be further improved, at the same time, the spring 37 is in the compressed state initially, when the scraping plate 38 is worn, the scraping plate 38 can be pushed to be in contact with the inner wall of the preheating cylinder 11 all the time, so that the raw material can not be on the bottom, the raw material is melted, the first control valve 14 is opened, so that the raw material can enter the extruder main body 1, the plastic can be processed and extruded, the above is the working process of the whole device, and the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0026] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A plastic extruder having a preheating function, comprising an extruder main body (1) and a preheating cylinder (11), characterized in that: The motor (12) output end is fixedly connected with an extrusion screw (13), the extrusion machine body (1) and the preheating cylinder (11) are provided with a first control valve (14), the preheating cylinder (11) is provided with a preheating component, and the preheating cylinder (11) is provided with a turnover component. The preheating component includes a heat conduction cavity (21) formed in the inner wall of the preheating cylinder (11), a plurality of electric heating pipes (22) fixedly connected with the top of the heat conduction cavity (21) respectively, a liquid adding pipe (23) fixedly connected with one side of the upper part of the heat conduction cavity (21), a liquid outlet pipe (24) fixedly connected with one side of the lower part of the heat conduction cavity (21), a second control valve (25) fixedly connected with the liquid outlet pipe (24), and heat preservation cotton (26) fixedly connected with the outer side of the preheating cylinder (11), and the liquid outlet pipe (24) and the liquid adding pipe (23) are communicated with the heat conduction cavity (21).

2. The plastic extruder with preheating function according to claim 1, characterized in that: The turnover component includes a turnover shaft (31) connected with the preheating cylinder (11), a turnover blade (32) fixedly connected with the outer side of the turnover shaft (31), a plurality of supporting rods (33) fixedly connected with the outer side of the lower part of the turnover shaft (31), a fixed block (34) fixedly connected with the supporting rods (33), a pressing groove (35) formed in the two sides of the fixed block (34) respectively, a pressing rod (36) arranged in the pressing groove (35), a spring (37) fixedly connected with one end of the pressing rod (36), a scraping plate (38) fixedly connected with the other end of the pressing rod (36), and a power component for rotating the turnover shaft (31), the turnover shaft (31) is rotatably connected with the preheating cylinder (11), the pressing rod (36) is slidably connected with the pressing groove (35), and the scraping plate (38) is in contact with the inner wall of the preheating cylinder (11).

3. The plastic extruder with preheating function according to claim 2, characterized in that: The power component includes a driving wheel (41) fixedly connected with the outer side of the extrusion screw (13), a belt (42) connected with the driving wheel (41), a driven wheel (43) connected with the belt (42), a rotating shaft (44) fixedly connected with the driven wheel (43), a driving bevel gear (45) fixedly connected with the outer side of the rotating shaft (44), and a driven bevel gear (46) fixedly connected with the outer side of the turnover shaft (31), the driving bevel gear (45) is engaged with the driven bevel gear (46), and the driving wheel (41) and the driven wheel (43) are drivingly connected through the belt (42).

4. The plastic extruder with preheating function according to claim 1, characterized in that: The preheating cylinder (11) top side is fixedly connected with a feeding pipe (51), and the feeding pipe (51) top is screwed with a pipe cover (52).

5. The plastic extruder with preheating function according to claim 2, characterized in that: The pressing rod (36) is provided with a limiting groove (61), and the limiting rod (62) is fixedly connected with the inner wall of the pressing groove (35) and slidably connected with the limiting groove (61).

6. The plastic extruder with preheating function according to claim 3, characterized in that: The preheating cylinder (11) top is fixedly connected with a supporting plate (71), and the rotating shaft (44) is rotatably connected with the supporting plate (71).

7. The plastic extruder with preheating function according to claim 1, characterized in that: The extrusion machine body (1) two sides are respectively fixedly connected with a fixed ring (81), the fixed ring (81) bottom two sides are respectively fixedly connected with a supporting leg (82), and the supporting leg (82) bottom is fixedly connected with an anti-skid seat (83).

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