Plastic pipe extrusion molding device

Abstract

The utility model belongs to the field of plastic pipe production and manufacturing, and particularly relates to a plastic pipe extrusion molding device which comprises an operation table. A raw material box is fixedly connected to the top of the operation table; a feeding box is fixedly connected to the top of the raw material box; a plurality of first gas conveying pipes are arranged in the middle of the feeding box in a penetrating manner; a plurality of air outlet holes are formed in the first air conveying pipe; the middle part of the raw material box is communicated with a forming pipe; when the humidity of a plastic raw material is too high, bubbles are likely to be generated in the extrusion machining process, high-temperature gas is input into a first gas conveying pipe and blown to the surface of the raw material through gas outlet holes, moisture in the raw material can be dried before the raw material is machined, and therefore the raw material can be effectively dried; and the situation that bubbles are generated in the extrusion process due to overhigh internal humidity of the plastic raw materials is reduced.

Description

Technical Field

[0001] The utility model relates to the field of plastic pipe production, in particular to a plastic pipe extrusion molding device. Background Art

[0002] Plastic pipe extrusion equipment is a key piece of equipment used in the plastics processing industry to produce plastic pipes. Through a series of complex processes, the equipment converts plastic raw materials into pipe products with specific shapes and sizes.

[0003] Plastic pipe extrusion molding device generally places the raw material in the barrel; then the screw rotates in the barrel, pushing the plastic raw material forward and heating it to melt. The molten plastic enters the die head under the push of the screw and is further plasticized and homogenized in the die head. The plasticized plastic melt passes through the die and core rod of the mold to form a tube embryo with a ring cross-section. The tube embryo is cooled and shaped to form a pipe with a certain shape and size.

[0004] Existing plastic pipe extrusion molding devices generally form plastic pipes by extruding plastic raw materials after melting them. During use and observation, it was found that when this extrusion method is used, when the humidity of the plastic raw materials is too high, raw material impurities are easily attached to the surface of the screw during the extrusion process.

[0005] Therefore, a plastic pipe extrusion molding device is proposed in response to the above problems. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a plastic tube extrusion molding device described in the present invention includes an operating table; a raw material box is fixedly connected to the top of the operating table; a feed box is fixedly connected to the top of the raw material box; a plurality of first air pipes are arranged through the middle of the feed box; a plurality of air outlet holes are opened on the first air pipes; a molding tube is connected to the middle of the raw material box; a support column is fixedly connected to the top of the operating table. When the humidity of the plastic raw material itself is too high, bubbles are easily generated during the extrusion process. By inputting high-temperature gas into the first air pipe and blowing it to the surface of the raw material through the air outlet holes, the moisture inside the raw material can be dried before the raw material is processed, thereby reducing the raw material impurities attached to the screw surface.

[0008] Preferably, a plurality of connecting frames are fixedly connected to the first gas pipe; a diffusion plate is fixedly connected to the end of the connecting frame. By fixing the connecting frame to the first gas pipe and the diffusion plate to the end of the connecting frame, the raw materials can be dispersed before drying, and the falling speed of the raw materials can be reduced, thereby reducing the situation where the high-temperature gas ejected from the air outlet due to the raw materials falling too fast is not dried thoroughly.

[0009] Preferably, a group of motors are fixedly connected to the side wall of the raw material box; a crushing roller is fixedly connected to the output end of the motor; the mixed raw materials are squeezed and crushed by the rotating crushing roller, which can further crush the raw materials and reduce the presence of lumps in the mixed raw materials, thereby affecting subsequent production work.

[0010] Preferably, an elastic screen is fixedly connected to the inner wall of the raw material box; a plurality of mesh holes are provided on the elastic screen. By fixing the elastic screen on the inner wall of the raw material box and providing a plurality of mesh holes on the elastic screen, it is possible to shatter the agglomerated raw materials that are not completely crushed and also to screen the agglomerated raw materials that are not completely crushed, thereby reducing the situation where large pieces of raw materials enter the raw material box and affect the quality of product production.

[0011] Preferably, a first bracket is fixedly connected to the top of the operating table; a water outlet pipe is fixedly connected to the end of the first bracket; a water inlet pipe is connected to the middle of the water outlet pipe; a water outlet is opened on the water outlet pipe, and water is injected into the water inlet pipe and sprinkled onto the surface of the plastic pipe through the water outlet, so that the plastic pipe can be cooled after production is completed, so that the plastic pipe can be quickly shaped after production is completed, thereby accelerating production efficiency.

[0012] Preferably, a group of second brackets are fixedly connected to the top of the operating table; a gas box is fixedly connected to the end of the second bracket; a plurality of blowing holes are opened on the gas box; a second gas pipe is connected to the gas box, and when the plastic pipe after production passes between a group of gas boxes, gas is injected into the second gas pipe, and the gas enters the gas box and blows toward the surface of the plastic pipe through the blowing holes. When the gas blows toward the surface of the plastic pipe, water stains on the surface of the plastic pipe can be cleaned, keeping the surface of the plastic pipe dry and clean.

[0013] The utility model is beneficial in that:

[0014] 1. The plastic tube extrusion molding device described in the present invention can dry the moisture inside the raw material before processing it by inputting high-temperature gas into the first gas pipe and blowing it toward the surface of the raw material through the air outlet, thereby reducing the raw material impurities attached to the screw surface.

[0015] 2. The plastic tube extrusion molding device described in the present invention extrudes and crushes the mixed raw materials through the rotating crushing roller, which can further crush the raw materials and reduce the presence of lumps in the mixed raw materials, thereby affecting subsequent production work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the main body of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the first gas pipeline in the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the crushing roller in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the elastic screen in the present utility model;

[0021] Figure 5 This is a schematic structural diagram of the water outlet pipe in the utility model;

[0022] Figure 6 This is a schematic structural diagram of the gas transmission box in the utility model.

[0023] Legend: 1. Operating table; 11. Raw material box; 12. Feed box; 13. First air pipe; 14. Air outlet; 15. Forming tube; 16. Support column; 2. Connecting frame; 21. Diffuser plate; 3. Motor; 31. Crushing roller; 4. Elastic screen; 41. Mesh; 5. First bracket; 51. Water outlet pipe; 52. Water inlet pipe; 53. Water outlet; 6. Second bracket; 61. Air box; 62. Air hole; 63. Second air pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Specific examples are given below.

[0026] like Figures 1 to 5As shown, a plastic tube extrusion molding device according to an embodiment of the present invention comprises an operating table 1; a raw material box 11 is fixedly connected to the top of the operating table 1; a feed box 12 is fixedly connected to the top of the raw material box 11; a plurality of first gas pipes 13 are provided through the middle of the feed box 12; a plurality of air outlet holes 14 are provided on the first gas pipes 13; a molding pipe 15 is connected to the middle of the raw material box 11; a support column 16 is fixedly connected to the top of the operating table 1, and high-temperature gas is input into the first gas pipe 13 during operation, and then the raw material of the plastic tube is produced. The material is placed from the feed box 12 into the raw material box 11. When the material is transported down, it passes through the surface of the first gas pipe 13. At this time, the high-temperature gas is blown toward the surface of the raw material through the air outlet 14 opened on the first gas pipe 13. When the high-temperature gas is blown toward the surface of the raw material, the raw material absorbs heat, causing the residual moisture inside the raw material to evaporate and the raw material becomes drier. By inputting high-temperature gas into the first gas pipe 13 and blowing it toward the surface of the raw material through the air outlet 14, the moisture inside the raw material can be dried before processing the raw material, thereby reducing the raw material impurities attached to the screw surface.

[0027] like Figure 2 As shown, a plurality of connecting frames 2 are fixedly connected to the first gas pipe 13; a diffusion plate 21 is fixedly connected to the end of the connecting frame 2. When the raw materials are fed into the material box 12 and placed into the interior of the raw material box 11, the raw materials first fall onto the surface of the diffusion plate 21 and then continue to move downward into the interior of the raw material box 11. At this time, the diffusion plate 21 disperses the materials, and the dispersed raw materials continue to fall and are dried by the high-temperature gas ejected from the air outlet 14. By fixing the connecting frame 2 on the first gas pipe 13 and fixing the diffusion plate 21 at the end of the connecting frame 2, the raw materials can be dispersed before the raw materials are dried, and the falling speed of the raw materials can be reduced, thereby reducing the situation where the raw materials fall too fast and the high-temperature gas ejected from the air outlet 14 does not completely dry the bulk raw materials.

[0028] like Figure 3 As shown, a group of motors 3 are fixedly connected to the side wall of the raw material box 11; a crushing roller 31 is fixedly connected to the output end of the motor 3; the motor 3 is turned on before the first air pipe 13 dries the raw materials, and the motor 3 drives the crushing roller 31 fixed to its output end to rotate. When the raw materials continue to fall after drying, when the raw materials fall to the surface of the crushing roller 31, they are squeezed and crushed by the rotating crushing roller 31. The mixed raw materials are squeezed and crushed by the rotating crushing roller 31, which can further crush the raw materials and reduce the presence of lumps in the mixed raw materials, thereby affecting subsequent production work.

[0029] like Figure 4As shown, an elastic screen 4 is fixedly connected to the inner wall of the raw material box 11; a plurality of mesh holes 41 are provided on the elastic screen 4. When the crushed raw materials fall onto the surface of the elastic screen 4, raw materials of suitable size fall from the mesh holes 41 provided on the elastic screen 4. The agglomerated raw materials that are not completely crushed are bounced upward by the elastic screen 4 when they fall onto the surface of the elastic screen 4 due to the raw materials' own gravity, and then fall onto the surface of the elastic screen 4 again. In this way, the agglomerated raw materials that are not completely crushed are shattered. By fixing the elastic screen 4 to the inner wall of the raw material box 11 and providing a plurality of mesh holes 41 on the elastic screen 4, the agglomerated raw materials that are not completely crushed can be shattered and the agglomerated raw materials that are not completely crushed can also be screened, thereby reducing the situation where large pieces of raw materials enter the raw material box 11 and affect the product production quality.

[0030] like Figure 5 As shown, a first bracket 5 is fixedly connected to the top of the operating table 1; a water outlet pipe 51 is fixedly connected to the end of the first bracket 5; a water inlet pipe 52 is connected to the middle of the water outlet pipe 51; a water outlet 53 is provided on the water outlet pipe 51. When the production of the plastic pipe is completed, the plastic pipe moves forward through the inside of the water outlet pipe 51. At this time, water is injected into the water inlet pipe 52, and the water flows into the inside of the water outlet pipe 51 through the water inlet pipe 52 and then sprinkled onto the surface of the plastic pipe through the water outlet 53 provided on the water outlet pipe 51. By injecting water into the water inlet pipe 52 and sprinkling it onto the surface of the plastic pipe through the water outlet 53, the plastic pipe can be cooled after production is completed, so that the plastic pipe can be quickly shaped after production, thereby accelerating production efficiency.

[0031] like Figure 6 As shown, a group of second brackets 6 are fixedly connected to the top of the operating table 1; a gas box 61 is fixedly connected to the end of the second bracket 6; a plurality of blowing holes 62 are opened on the gas box 61; a second gas pipe 63 is connected to the gas box 61, and when the plastic pipe after production passes through a group of gas boxes 61, gas is injected into the second gas pipe 63, and the gas enters the gas box 61 and is blown toward the surface of the plastic pipe through the blowing holes 62. When the gas is blown toward the surface of the plastic pipe, water stains on the surface of the plastic pipe can be cleaned to keep the surface of the plastic pipe dry and clean.

[0032] Working principle: high-temperature gas is input into the first gas pipe 13, and then the raw materials for producing plastic pipes are placed from the feed box 12 into the raw material box 11. When the raw materials descend, they pass through the surface of the first gas pipe 13. At this time, the high-temperature gas is blown to the surface of the raw materials through the air outlet 14 opened on the first gas pipe 13. When the high-temperature gas blows to the surface of the raw materials, the raw materials absorb heat, causing the residual moisture inside the raw materials to evaporate and the raw materials become drier. When the raw materials are fed into the feed box 12 and placed into the raw material box 11, the raw materials first fall to the surface of the diffusion plate 21 and then continue to move downward to the inside of the raw material box 11. At this time, the diffusion plate 21 disperses the material, and the dispersed raw materials continue to fall and are dried by the high-temperature gas ejected from the air outlet 14. After the raw materials are dried, they continue to fall. When the raw materials fall to the surface of the crushing roller 31, they are squeezed and crushed by the rotating crushing roller 31. The rotating crushing roller 31 squeezes and crushes the mixed raw materials, which can be carried out. One-step crushing, when the crushed raw materials fall to the surface of the elastic screen 4, raw materials of suitable size fall from the mesh holes 41 opened on the elastic screen 4, and the agglomerated raw materials that are not completely crushed are bounced upward by the elastic screen 4 when they fall to the surface of the elastic screen 4 due to the raw materials' own gravity, and then fall to the surface of the elastic screen 4 again, and the agglomerated raw materials that are not completely crushed are shattered in this reciprocating manner. When the plastic pipe is produced, the plastic pipe moves forward through the inside of the water outlet pipe 51. At this time, water is injected into the inside of the water inlet pipe 52. The water flows into the inside of the water outlet pipe 51 through the water inlet pipe 52 and then sprinkled onto the surface of the plastic pipe through the water outlet 53 opened on the water outlet pipe 51. When the produced plastic pipe passes between a group of gas boxes 61, gas is injected into the inside of the second gas pipe 63. The gas enters the inside of the gas box 61 and is blown onto the surface of the plastic pipe through the blowing hole 62. When the gas is blown onto the surface of the plastic pipe, water stains on the surface of the plastic pipe can be cleaned, keeping the surface of the plastic pipe dry and clean.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A plastic pipe extrusion molding device, comprising an operating table (1); characterized in that: The top of the operating table (1) is fixedly connected to a raw material box (11); the top of the raw material box (11) is fixedly connected to a feed box (12); a plurality of first air pipes (13) are provided through the middle of the feed box (12); a plurality of air outlet holes (14) are provided on the first air pipes (13); a forming pipe (15) is connected to the middle of the raw material box (11); and a support column (16) is fixedly connected to the top of the operating table (1).

2. A plastic tube extrusion molding device according to claim 1, characterized in that: A plurality of connecting frames (2) are fixedly connected to the first gas transmission pipe (13); and a diffusion plate (21) is fixedly connected to the end of the connecting frame (2).

3. A plastic tube extrusion molding device according to claim 2, characterized in that: A group of motors (3) are fixedly connected to the side wall of the raw material box (11); and a crushing roller (31) is fixedly connected to the output end of the motor (3).

4. A plastic tube extrusion molding device according to claim 3, characterized in that: An elastic screen (4) is fixedly connected to the inner wall of the raw material box (11); a plurality of mesh holes (41) are formed on the elastic screen (4).

5. A plastic tube extrusion molding device according to claim 4, characterized in that: A first bracket (5) is fixedly connected to the top of the operating table (1); a water outlet pipe (51) is fixedly connected to the end of the first bracket (5); a water inlet pipe (52) is connected to the middle of the water outlet pipe (51); and a water outlet (53) is provided on the water outlet pipe (51).

6. A plastic tube extrusion molding device according to claim 5, characterized in that: A set of second brackets (6) is fixedly connected to the top of the operating table (1); a gas delivery box (61) is fixedly connected to the end of the second bracket (6); a plurality of blowing holes (62) are opened on the gas delivery box (61); and a second gas delivery pipe (63) is connected to the gas delivery box (61).

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