Plastic extruder with preheating function

Abstract

The utility model relates to the technical field of plastic extruders, in particular to a plastic extruder with a preheating function, which comprises an extruder body and an inlet mounted on the upper side of the outer wall of the extruder body, a vertical plate is arranged on the right side of the extruder body, and a transverse plate positioned above the inlet is fixedly connected to the left side of the vertical plate. A mounting hole is formed in the upper end face of the transverse plate in a penetrating mode, a first bearing is mounted on the inner wall of the mounting hole, and a preheating cylinder is fixedly connected to the inner wall of the first bearing; through rotation of the preheating cylinder, raw materials in the preheating cylinder are stirred while being heated through a plurality of stirring pipes, the heating uniformity of the raw materials is improved, after preheating is completed, a valve of a discharging valve pipe is opened, and the raw materials enter an inlet along with the discharging valve pipe and then enter an extruder body to be further processed; and further, the extrusion raw materials can be preheated in advance, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic extruders, in particular to a plastic extruder with a preheating function. Background Art

[0002] In plastic extrusion molding equipment, plastic extruder is usually called the main machine, and the subsequent equipment plastic extrusion molding machine is called the auxiliary machine. After more than a hundred years of development, the plastic extruder has evolved from the original single screw to a variety of models such as twin-screw, multi-screw and even screwless. The plastic extruder (main machine) can be matched with various plastic molding auxiliary machines such as pipes, films, holding materials, monofilaments, flat wires, strapping tapes, extruded nets, plates (sheets), profiles and granulation-grade cable coatings to form various plastic extrusion molding production lines and produce various plastic products. Therefore, plastic extrusion molding machinery is one of the widely used machines in the plastic processing industry now or in the future. At this time, a plastic extruder with a preheating function is needed.

[0003] At present, the use of plastic extruders in the plastic processing industry is very common, but most plastic extruders do not have a preheating function, which makes it impossible to quickly heat up the extruded raw materials, thereby affecting work efficiency. Therefore, it is necessary to propose a plastic extruder with a preheating function to solve the above-mentioned problems. Summary of the invention

[0004] The utility model aims to provide a plastic extruder with a preheating function, which is convenient for preheating extruded raw materials in advance to improve production efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic extruder with a preheating function, comprising an extruder body and an inlet installed on the upper side of the outer wall of the extruder body, a vertical plate is arranged on the right side of the extruder body, a horizontal plate located above the inlet is fixedly connected to the left side of the vertical plate, a mounting hole is penetrated through the upper end surface of the horizontal plate, a first bearing is installed on the inner wall of the mounting hole, a preheating cylinder is fixedly connected to the inner wall of the first bearing, a driven gear located above the horizontal plate is fixedly connected to the outer wall of the preheating cylinder, a rotating shaft located on the left side of the mounting hole is rotatably connected to the upper end surface of the horizontal plate, a driving gear meshed with the left side of the driven gear is fixedly connected to the upper end surface of the rotating shaft, a fixed tube is arranged on the inner wall of the preheating cylinder, a plurality of stirring tubes are fixedly connected to the left and right sides of the outer wall of the fixed tube, electric heating wires are installed inside the fixed tube and the plurality of stirring tubes, and a discharge valve tube extending to the inside of the inlet is penetrated and connected to the lower end of the inner wall of the preheating cylinder.

[0006] In order to facilitate the fixation of the fixed tube, as a preferred plastic extruder with a preheating function of the utility model, the upper end of the vertical plate is fixedly connected to an L-shaped plate, and the upper side of the inner wall of the L-shaped plate is fixedly connected to a fixing rod that passes through the upper end of the preheating cylinder and is fixedly connected to the upper end of the fixed tube.

[0007] In order to prevent the raw materials from being retained inside the preheating cylinder during discharge, as a preferred plastic extruder with a preheating function of the utility model, the lower end of the inner wall of the preheating cylinder is fixedly connected to a guide hopper located outside the inner wall of the discharge valve tube.

[0008] In order to facilitate the rotation of the discharge valve tube inside the inlet and improve its rotation stability, as a preferred plastic extruder with a preheating function of the utility model, the inner wall of the inlet is fixedly connected to a second bearing, and the discharge valve tube is fixedly connected to the inner wall of the second bearing.

[0009] In order to facilitate the rotation of the rotating shaft, as a preferred plastic extruder with a preheating function of the utility model, the lower end surface of the horizontal plate is fixedly connected to a motor, and the output end of the motor passes through the horizontal plate and is fixedly connected to the lower end of the rotating shaft.

[0010] In order to facilitate the placement of raw materials into the interior of the preheating cylinder, as a preferred plastic extruder with a preheating function of the utility model, the upper end surface of the preheating cylinder is penetrated and connected with a feed pipe located on the right side of the fixing rod.

[0011] In order to facilitate supporting the device and fixing the vertical plate, as a preferred plastic extruder with a preheating function of the utility model, the left and right ends of the lower side of the extruder body are fixedly connected with support plates, and a fixing plate is fixedly connected between the right support plate and the vertical plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The electric heating wire works to preheat the material inside the preheating cylinder. At the same time, the preheating cylinder rotates, and the raw materials inside the preheating cylinder are stirred while being heated through multiple stirring tubes, thereby improving the uniformity of heating of the raw materials. After the preheating is completed, the valve of the discharge valve pipe is opened, and the raw materials will enter the inlet through the discharge valve pipe, and then enter the interior of the extruder body for further processing, thereby further facilitating the early preheating of the extruded raw materials to improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall front cross-sectional view of the utility model;

[0015] Figure 2 For the utility model Figure 1Enlarged view of point A in the middle;

[0016] Figure 3 This is the external structure diagram of the preheating cylinder and the driven gear of the utility model;

[0017] Figure 4 This is the external structure diagram of the guide hopper of the utility model.

[0018] In the figure: 1. extruder body; 2. inlet; 3. vertical plate; 4. horizontal plate; 5. mounting hole; 6. first bearing; 7. preheating cylinder; 8. driven gear; 9. rotating shaft; 10. driving gear; 11. fixed tube; 12. stirring tube; 13. heating wire; 14. motor; 15. L-shaped plate; 16. fixed rod; 17. discharge valve tube; 18. second bearing; 19. guide hopper; 20. feed pipe; 21. support plate; 22. fixed plate. DETAILED DESCRIPTION

[0019] See also Figures 1 to 4 A plastic extruder with a preheating function comprises an extruder body 1 and an inlet 2 installed on the upper side of the outer wall of the extruder body 1, a vertical plate 3 is arranged on the right side of the extruder body 1, a horizontal plate 4 located above the inlet 2 is fixedly connected to the left side of the vertical plate 3, a mounting hole 5 is penetrated through the upper end surface of the horizontal plate 4, a first bearing 6 is installed on the inner wall of the mounting hole 5, a preheating cylinder 7 is fixedly connected to the inner wall of the first bearing 6, a driven gear 8 located above the horizontal plate 4 is fixedly connected to the outer wall of the preheating cylinder 7, a rotating shaft 9 located on the left side of the mounting hole 5 is rotatably connected to the upper end surface of the horizontal plate 4, a driving gear 10 meshing with the left side of the driven gear 8 is fixedly connected to the upper end surface of the rotating shaft 9, a fixed tube 11 is arranged on the inner wall of the preheating cylinder 7, a plurality of stirring tubes 12 are fixedly connected to the left and right sides of the outer wall of the fixed tube 11, electric heating wires 13 are installed inside the fixed tube 11 and the plurality of stirring tubes 12, and a discharge valve tube 17 extending to the inside of the inlet 2 is penetrated and connected to the lower end of the inner wall of the preheating cylinder 7.

[0020] In this embodiment: the electric heating wire 13 works to preheat the material inside the preheating cylinder 7, and the rotating shaft 9 rotates to drive the driving gear 10 to rotate. Since the preheating cylinder 7 is rotatably connected to the inner wall of the mounting hole 5 through the first bearing 6, the driven gear 8 and the preheating cylinder 7 can be driven to rotate, and the raw materials inside the preheating cylinder 7 are stirred while being heated through multiple stirring tubes 12, thereby improving the uniformity of heating of the raw materials. At the same time, the discharge valve tube 17 rotates inside the inlet 2. After the preheating is completed, the valve of the discharge valve tube 17 is opened, and the raw materials will enter the interior of the inlet 2 along the discharge valve tube 17, and then enter the interior of the extruder body 1 for further processing, thereby further achieving the characteristic of facilitating the early preheating of the extruded raw materials to improve production efficiency.

[0021] As a technical optimization solution of the utility model, an L-shaped plate 15 is fixedly connected to the upper end of the vertical plate 3, and a fixing rod 16 that passes through the upper end of the preheating cylinder 7 and is fixedly connected to the upper end of the fixed tube 11 is fixedly connected to the upper side of the inner wall of the L-shaped plate 15.

[0022] In this embodiment: an L-shaped plate 15 is provided to facilitate fixing of the fixing rod 16 , and a fixing rod 16 is provided to facilitate fixing of the fixing pipe 11 .

[0023] As a technical optimization solution of the utility model, the lower end of the inner wall of the preheating cylinder 7 is fixedly connected with a guide hopper 19 located on the outer side of the inner wall of the discharge valve pipe 17 .

[0024] In this embodiment, a guide hopper 19 is provided to prevent the raw materials from being retained inside the preheating cylinder 7 when the raw materials are discharged.

[0025] As a technical optimization solution of the present utility model, a second bearing 18 is fixedly connected to the inner wall of the inlet 2 , and the discharge valve pipe 17 is fixedly connected to the inner wall of the second bearing 18 .

[0026] In this embodiment, the second bearing 18 is provided to facilitate the discharge valve tube 17 to rotate inside the inlet 2 and to improve the stability of its rotation.

[0027] As a technical optimization solution of the utility model, a motor 14 is fixedly connected to the lower end surface of the horizontal plate 4 , and the output end of the motor 14 passes through the horizontal plate 4 and is fixedly connected to the lower end of the rotating shaft 9 .

[0028] In this embodiment, a motor 14 is provided to drive the rotating shaft 9 to rotate.

[0029] As a technical optimization solution of the present invention, the upper end surface of the preheating cylinder 7 is penetrated and connected with a feed pipe 20 located on the right side of the fixing rod 16 .

[0030] In this embodiment, a feed pipe 20 is provided to facilitate the placement of raw materials into the interior of the preheating cylinder 7 .

[0031] As a technical optimization solution of the utility model, support plates 21 are fixedly connected to both left and right ends of the lower side of the extruder body 1 , and a fixing plate 22 is fixedly connected between the right support plate 21 and the vertical plate 3 .

[0032] In this embodiment: two support plates 21 are provided to support the device, and a fixing plate 22 is provided to fix the vertical plate 3.

[0033] Working principle: first, the raw material is placed into the interior of the preheating cylinder 7 along the feed pipe 20, and then the electric heating wire 13 works to preheat the material inside the preheating cylinder 7. At the same time, the motor 14 drives the rotating shaft 9 to rotate, and then drives the driving gear 10 to rotate. Since the preheating cylinder 7 is rotatably connected to the inner wall of the mounting hole 5 through the first bearing 6, the driven gear 8 and the preheating cylinder 7 can be driven to rotate, and then the raw material inside the preheating cylinder 7 is stirred while being heated through multiple stirring tubes 12, thereby improving the uniformity of heating of the raw material. At the same time, the discharge valve pipe 17 rotates inside the inlet 2. After the preheating is completed, the valve of the discharge valve pipe 17 is opened, and the raw material will enter the interior of the inlet 2 along the discharge valve pipe 17, and then enter the interior of the extruder body 1 for further processing, thereby further achieving the characteristic of facilitating the early preheating of the extruded raw material to improve production efficiency.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic extruder with a preheating function, comprising an extruder body (1) and an inlet (2) mounted on the upper side of the outer wall of the extruder body (1), characterized in that: A vertical plate (3) is arranged on the right side of the extruder body (1), and a horizontal plate (4) located above the inlet (2) is fixedly connected to the left side of the vertical plate (3), and a mounting hole (5) is penetrated through the upper end surface of the horizontal plate (4), and a first bearing (6) is installed on the inner wall of the mounting hole (5), and a preheating cylinder (7) is fixedly connected to the inner wall of the first bearing (6), and a driven gear (8) located above the horizontal plate (4) is fixedly connected to the outer wall of the preheating cylinder (7), and the upper end surface of the horizontal plate (4) is rotatably connected to the driven gear (8) located above the mounting hole. (5) a left rotating shaft (9), the upper end surface of the rotating shaft (9) is fixedly connected with a driving gear (10) meshing with the left side of the driven gear (8), the inner wall of the preheating cylinder (7) is provided with a fixed tube (11), the left and right sides of the outer wall of the fixed tube (11) are fixedly connected with a plurality of stirring tubes (12), the interiors of the fixed tube (11) and the plurality of stirring tubes (12) are both installed with electric heating wires (13), and the lower end of the inner wall of the preheating cylinder (7) is penetrated and connected with a discharge valve tube (17) extending to the inside of the inlet (2).

2. A plastic extruder with preheating function according to claim 1, characterized in that: An L-shaped plate (15) is fixedly connected to the upper end of the vertical plate (3), and a fixing rod (16) penetrating the upper end of the preheating cylinder (7) and fixedly connected to the upper end of the fixing tube (11) is fixedly connected to the upper side of the inner wall of the L-shaped plate (15).

3. A plastic extruder with preheating function according to claim 1, characterized in that: The lower end of the inner wall of the preheating cylinder (7) is fixedly connected to a material guide hopper (19) located outside the inner wall of the discharge valve pipe (17).

4. A plastic extruder with preheating function according to claim 1, characterized in that: The inner wall of the inlet (2) is fixedly connected to a second bearing (18), and the discharge valve pipe (17) is fixedly connected to the inner wall of the second bearing (18).

5. The plastic extruder with preheating function according to claim 1, characterized in that: A motor (14) is fixedly connected to the lower end surface of the transverse plate (4), and an output end of the motor (14) passes through the transverse plate (4) and is fixedly connected to the lower end of the rotating shaft (9).

6. A plastic extruder with preheating function according to claim 2, characterized in that: The upper end surface of the preheating cylinder (7) is connected through a feed pipe (20) located on the right side of the fixing rod (16).

7. The plastic extruder with preheating function according to claim 1, characterized in that: The left and right ends of the lower side of the extruder body (1) are fixedly connected with support plates (21), and a fixing plate (22) is fixedly connected between the right support plate (21) and the vertical plate (3).

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