Pipeline plastic extruding machine

Abstract

The utility model discloses a pipeline plastic extruding machine, relates to the technical field of plastic extruding machines, and aims to solve the problems that in the prior art, the extrusion production of pipelines with different specifications is very inconvenient, and the whole structure is relatively soft, easy to deform and poor in practicability when the pipelines are molded and extruded. A material guiding taper pipe is installed on one side of the extrusion box in a threaded mode, an extrusion molding pipe die is installed on the side, away from the extrusion box, of the material guiding taper pipe in a threaded mode, a forming cavity is formed in the extrusion molding pipe die, an inner die body is arranged in the forming cavity, and one end of the inner die body extends out of the interior of the extrusion molding pipe die. A mounting groove is formed in the portion, along one side of the forming cavity, of the interior of the extrusion molding pipe die, the mounting groove communicates with the forming cavity, a mounting column is mounted in the mounting groove in a threaded mode, the mounting column is connected with the inner die body in a welded mode, and an inner cavity is formed in one side of the interior of the inner die body; air flow channels are formed in the inner mold body along the upper portion and the lower portion of one side of the inner cavity.

Description

Technical Field

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

[0002] Extruder is an important plastic machine. Most of the production and manufacturing of plastic products can be realized by extrusion molding. The extruder motor is an important part of the extruder. It is the prime mover of the extruder and provides the large thrust required by the extruder screw. Pipes are commonly used building materials. When producing pipes, extruders are generally used for molding and preparation.

[0003] For example, the authorized patent with announcement number CN210436585U (a pipe extruder): upper heating semi-rings are sleeved at equal distances at the upper position of the outer side of the extruder barrel, lower heating semi-rings are sleeved at the corresponding position of the upper heating semi-rings at the lower position of the outer side of the extruder barrel, the bottom end of the upper heating semi-ring and the top end of the lower heating semi-ring are connected to connecting end plates, arc-shaped heating chambers are opened inside the upper heating semi-ring and the lower heating semi-ring, and first resistance heating tubes are evenly arranged inside the arc-shaped heating chambers;

[0004] Although the above-mentioned prior art is convenient for heating both sides of the extruder barrel through the first resistance heating tube inside the upper heating semi-ring and the lower heating semi-ring, it is not convenient for replacing the tube mold, which is very inconvenient when performing extrusion production of pipes of different specifications. Moreover, when the pipe is extruded, the overall structure is relatively soft and prone to deformation, and has poor practicality. Therefore, the market urgently needs to develop a pipe extruder to help people solve the existing problems. Utility Model Content

[0005] The utility model aims to provide a pipe extruder to solve the problems in the above background technology that it is very inconvenient to extrude pipes of different specifications, and the overall structure is relatively soft and easy to deform during pipe molding and extrusion, which leads to poor practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipe extruder comprises an extrusion box, a material guide cone tube is threadedly installed on one side of the extrusion box, an extrusion tube mold is threadedly installed on the side of the material guide cone tube away from the extrusion box, a molding cavity is arranged inside the extrusion tube mold, an inner mold body is arranged inside the molding cavity, and one end of the inner mold body extends out of the interior of the extrusion tube mold, an installation groove is arranged inside the extrusion tube mold along one side of the molding cavity, and the installation groove is connected with the molding cavity, an installation column is threadedly installed on the internal thread of the installation groove, and the installation column is welded and connected with the inner mold body, an inner cavity is arranged on one side inside the inner mold body, air flow channels are arranged above and below one side of the inner cavity inside the inner mold body, the two air flow channels pass through the installation column, a connecting hole is arranged inside the extrusion tube mold along one side of the air flow channel, and the connecting hole is connected with the air flow channel, and the connecting hole extends to the front end surface of the extrusion tube mold.

[0007] Preferably, a material guiding column is arranged on one side of the interior of the material guiding conical tube, and a material discharging annular cavity is arranged inside the material guiding conical tube along the outer side of the material guiding column.

[0008] Preferably, a receiving ring cavity is provided on one side of the interior of the extrusion tube mold, and the receiving ring cavity corresponds to and is connected with the discharge ring cavity. Drainage holes are provided above and below one side of the receiving ring cavity inside the extrusion tube mold, and the receiving ring cavity and the molding cavity are connected through the drainage holes.

[0009] Preferably, a connecting column is provided inside the discharge ring cavity, and the material guiding cone and the material guiding column are fixedly connected via the connecting column.

[0010] Preferably, a feed port is fixedly installed on the top of the extrusion box, an extrusion shaft is rotatably installed inside the extrusion box, a spiral blade is fixedly installed on the outside of the extrusion shaft, a protective cover is fixedly installed on one side of the extrusion box, an electric motor is arranged inside the protective cover, and the output shaft end of the motor is fixedly connected to the extrusion shaft.

[0011] Preferably, a heating box is fixedly installed on the outer side of the extrusion box, and an electric heating pipe is arranged inside the heating box. The electric heating pipe is spirally wound on the outer side of the extrusion box.

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

[0013] 1. The utility model uses a threaded connection mode between the guide cone tube and the extrusion tube die, so that when extruding pipes of different diameters, the extrusion tube die can be conveniently disassembled and replaced, and the threaded installation connection mode between the inner die body and the extrusion tube die makes it convenient to disassemble and replace the inner die body when extruding pipes of the same size but different thicknesses, thereby facilitating the extrusion production of pipes of different specifications and increasing the flexibility of the extruder. The inner die body leaks out of the extrusion tube die, so that when the pipe is extruded, the inner die body can support the pipe to prevent deformation, and an inner cavity is provided inside the inner die body, and the inner cavity is connected to the connecting hole through two air flow channels, so that it is convenient to transport cold air to the inner cavity by an external cooling device, which is beneficial to the cooling and shaping of the pipe during extrusion, and is beneficial to the stable extrusion production of the pipe, thereby increasing the practicality of the extruder.

[0014] 2. The utility model sets a guide cone tube. As the inner diameter of the guide cone tube gradually decreases from left to right, the internal pressure of the pipeline raw material gradually increases, and then it can flow into the extrusion tube mold through the discharge ring cavity and enter the molding cavity through the drainage hole for molding output, thereby realizing the extrusion molding of the pipeline.

[0015] 3. The utility model provides an extrusion shaft and spiral blades inside the extrusion box, so as to facilitate the transportation of pipeline raw materials, and melt the pipeline raw materials under the heating effect of the electric heating tube, so as to facilitate the subsequent extrusion molding work and increase the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of a pipe extruder of the utility model;

[0017] Figure 2 It is a cross-sectional view of the extrusion box, the guide cone tube and the extrusion tube die of the utility model;

[0018] Figure 3 It is an enlarged schematic diagram of the A part of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the inner mold body of the utility model.

[0020] In the figure: 1. extrusion box; 2. heating box; 3. feed port; 4. protective cover; 5. guide cone; 6. extrusion tube mold; 7. inner mold body; 8. motor; 9. extrusion shaft; 10. spiral blade; 11. electric heating tube; 12. guide column; 13. discharge ring cavity; 14. connecting column; 15. receiving ring cavity; 16. drainage hole; 17. molding cavity; 18. mounting groove; 19. mounting column; 20. inner cavity; 21. air flow channel; 22. connecting hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-4 The utility model provides an embodiment: a pipeline extruder, including an extrusion box 1, a material guide cone 5 is threadedly installed on one side of the extrusion box 1, as the inner diameter of the material guide cone 5 gradually decreases from left to right, the internal pressure of the pipeline raw material will gradually increase during the transportation process, and an extrusion tube mold 6 is threadedly installed on the side of the material guide cone 5 away from the extrusion box 1, and a molding cavity 17 is arranged inside the extrusion tube mold 6, and an inner mold body 7 is arranged inside the molding cavity 17, and one end of the inner mold body 7 extends out of the interior of the extrusion tube mold 6, and an installation groove 18 is arranged inside the extrusion tube mold 6 along one side of the molding cavity 17, and the installation groove 18 is connected to the molding cavity 17, and the installation groove 18 A mounting column 19 is installed on the internal thread, and the mounting column 19 is welded to the inner mold body 7. An inner cavity 20 is arranged on one side inside the inner mold body 7. Air flow channels 21 are arranged above and below one side of the inner cavity 20 inside the inner mold body 7. The two air flow channels 21 pass through the mounting column 19. A connecting hole 22 is arranged inside the extrusion tube mold 6 along one side of the air flow channel 21, and the connecting hole 22 is connected to the air flow channel 21. The connecting hole 22 extends to the front end surface of the extrusion tube mold 6, so that the output pipe of the external cooling equipment can convey cooling air to the inner cavity 20 through a connecting hole 22, which facilitates the cooling and shaping of the pipe during extrusion, and is conducive to the stable extrusion production of the pipe.

[0023] When in use, the threaded connection between the guide cone 5 and the extrusion tube die 6 makes it convenient to disassemble and replace the extrusion tube die 6 when extruding pipes of different diameters, and the threaded installation connection between the inner die body 7 and the extrusion tube die 6 makes it convenient to disassemble and replace the inner die body 7 when extruding pipes of the same size but different thicknesses, thereby facilitating the extrusion production of pipes of different specifications and increasing the flexibility of the extruder. The inner die body 7 leaks out of the extrusion tube die 6, so that when the pipe is extruded, the inner die body 7 can support the pipe to prevent the pipe from deforming.

[0024] Furthermore, a material guide column 12 is provided on one side of the guide cone 5, and the inner side of the guide column 12 is a semicircular arc surface, which is conducive to the flow of raw materials into the discharge ring cavity 13. A discharge ring cavity 13 is provided inside the guide cone 5 along the outer side of the guide column 12, and a receiving ring cavity 15 is provided on one side of the extrusion tube mold 6. The receiving ring cavity 15 corresponds to the position of the discharge ring cavity 13 and is connected, so that the raw material can flow directly from the discharge ring cavity 13 into the receiving ring cavity 15. The interior of the extrusion tube mold 6 is provided with drainage holes 16 above and below one side of the receiving ring cavity 15. The receiving ring cavity 15 and the molding cavity 17 are connected through the drainage holes 16, which facilitates the transportation of raw materials into the molding cavity 17 and is conducive to the extrusion molding of the pipeline.

[0025] Furthermore, a connecting column 14 is provided inside the discharge ring cavity 13 , and the material guiding cone 5 and the material guiding column 12 are fixedly connected via the connecting column 14 . The provision of the connecting column 14 increases the position stability of the material guiding column 12 .

[0026] Furthermore, a feed port 3 is fixedly installed on the top of the extrusion box 1 to facilitate the input of raw materials into the extrusion box 1. An extrusion shaft 9 is rotatably installed inside the extrusion box 1, and a spiral blade 10 is fixedly installed on the outside of the extrusion shaft 9. A protective cover 4 is fixedly installed on one side of the extrusion box 1, and a motor 8 is arranged inside the protective cover 4. The output shaft end of the motor 8 is fixedly connected to the extrusion shaft 9, so that the motor 8 can drive the extrusion shaft 9 to rotate, which is convenient for the transportation of pipeline raw materials.

[0027] Furthermore, a heating box 2 is fixedly installed on the outside of the extrusion box 1, and an electric heating tube 11 is arranged inside the heating box 2. The electric heating tube 11 is spirally wound on the outside of the extrusion box 1, which is beneficial to uniformly heat the extrusion box 1 and improves practicality.

[0028] Working principle: When in use, the raw materials for pipe extrusion production are added into the extrusion box 1 through the feed port 3, the motor 8 is started, the extrusion shaft 9 is driven to drive the spiral blade 10 to rotate for raw material transportation, and at the same time, the raw materials are heated by the action of the electric heating tube 11, so that the raw materials are melted and flow into the guide cone 5, and then the raw materials flow into the receiving ring cavity 15 of the extrusion tube die 6 through the discharge ring cavity 13, and then flow into the molding cavity 17 through the drainage hole 16 for molding and extrusion. When extruding pipes of different diameters, the extrusion tube die 6 can be disassembled and replaced. When extruding pipes of the same size but different thicknesses, the inner mold body 7 can be disassembled and replaced to facilitate the extrusion production of pipes of different specifications, and the inner mold body 7 leaks out of the extrusion tube die 6, so that when the pipe is extruded, the inner mold body 7 can support the pipe to prevent the pipe from deforming, which is beneficial to the stable extrusion production of the pipe and increases the practicality of the extruder.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A pipe extruder, comprising an extrusion box (1), characterized in that: A material guide cone (5) is threadedly mounted on one side of the extrusion box (1); an extrusion tube die (6) is threadedly mounted on the side of the material guide cone (5) away from the extrusion box (1); a molding cavity (17) is arranged inside the extrusion tube die (6); an inner mold body (7) is arranged inside the molding cavity (17); one end of the inner mold body (7) extends out of the interior of the extrusion tube die (6); a mounting groove (18) is arranged inside the extrusion tube die (6) along one side of the molding cavity (17); the mounting groove (18) is communicated with the molding cavity (17); the inner thread of the mounting groove (18) is arranged A mounting column (19) is provided, and the mounting column (19) is welded to the inner mold body (7); an inner cavity (20) is provided on one side of the inner mold body (7); air flow channels (21) are provided inside the inner mold body (7) along the upper and lower sides of one side of the inner cavity (20); the two air flow channels (21) penetrate the mounting column (19); a connecting hole (22) is provided inside the extrusion tube mold (6) along one side of the air flow channel (21); the connecting hole (22) is communicated with the air flow channel (21); and the connecting hole (22) extends to the front end surface of the extrusion tube mold (6).

2. A pipe extruder according to claim 1, characterized in that: A material guiding column (12) is arranged on one side of the material guiding conical tube (5), and a material discharging annular cavity (13) is arranged inside the material guiding conical tube (5) along the outer side of the material guiding column (12).

3. A pipe extruder according to claim 2, characterized in that: A receiving ring cavity (15) is provided on one side of the interior of the extrusion tube die (6), the receiving ring cavity (15) corresponds to and is connected to the discharge ring cavity (13), drainage holes (16) are provided above and below one side of the receiving ring cavity (15) inside the extrusion tube die (6), and the receiving ring cavity (15) and the molding cavity (17) are connected via the drainage holes (16).

4. A pipe extruder according to claim 2, characterized in that: A connecting column (14) is arranged inside the discharge ring cavity (13), and the material guiding cone (5) and the material guiding column (12) are fixedly connected via the connecting column (14).

5. A pipe extruder according to claim 1, characterized in that: A feed port (3) is fixedly installed above the extrusion box (1), an extrusion shaft (9) is rotatably installed inside the extrusion box (1), a spiral blade (10) is fixedly installed on the outside of the extrusion shaft (9), a protective cover (4) is fixedly installed on one side of the extrusion box (1), an electric motor (8) is arranged inside the protective cover (4), and the output shaft end of the electric motor (8) is fixedly connected to the extrusion shaft (9).

6. A pipe extruder according to claim 1, characterized in that: A heating box (2) is fixedly mounted on the outside of the extrusion box (1), an electric heating tube (11) is arranged inside the heating box (2), and the electric heating tube (11) is spirally wound on the outside of the extrusion box (1).

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