Extrusion mechanism for high-temperature-resistant recrystallized silicon carbide hanging rod

Abstract

The utility model discloses an extrusion mechanism for a high temperature resistant recrystallization silicon carbide hanging rod, which comprises an extrusion cylinder, the right end of the top of the extrusion cylinder is fixedly connected with a U-shaped fixing frame, the right end of the top of the U-shaped fixing frame is fixedly provided with a vacuum pump, and the air inlet end of the vacuum pump is communicated with the right end of the top of the extrusion cylinder through a pipeline. A material mixing box is fixedly mounted at the left end of the top of the extrusion barrel, a humidity detector is fixedly mounted at the right end of the top of the material mixing box, a probe of the humidity detector extends to an inner cavity of the material mixing box, and an electric heating block is fixedly connected to the lower end of the inner cavity of the material mixing box. Through the arrangement of the liquid injection pipe, the humidity detector, the material mixing box, the vacuum pump, the liquid control electromagnetic valve, the electric heating block and the material pushing screw rod, the structure has the advantages of vacuumizing, adjusting proper humidity and being beneficial to manufacturing of superfine hanging rods, and is simple to operate, convenient to use, excellent in performance and beneficial to market popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion mechanisms, in particular to an extrusion mechanism for a high-temperature resistant recrystallized silicon carbide suspension rod. Background Art

[0002] Extruder is a type of plastic machinery. It relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the materials and form them through the die. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and the rare multi-screw extruders and screwless extruders. For example, the high-temperature resistant recrystallized silicon carbide hanging rod is made by passing a variety of materials through an extruder.

[0003] At present, the existing extrusion mechanism for high-temperature resistant recrystallized silicon carbide hanger rods cannot remove bubbles in the blank, which causes bubbles to easily break on the surface of the blank when the product is extruded, affecting the surface quality, and it is impossible to adjust the mud with suitable humidity, because the size of the equipment extrusion force is the key issue in extrusion molding. If the extrusion force is too small, the mud must have a high water content to be extruded. In this way, the molded blank has low strength and large shrinkage. If the extrusion force is too large, the friction resistance is large, the equipment load is increased, and it is not conducive to the production of ultra-fine hangers. For this reason, we propose an extrusion mechanism for high-temperature resistant recrystallized silicon carbide hanger rods. Utility Model Content

[0004] The utility model aims to provide an extrusion mechanism for high-temperature resistant recrystallized silicon carbide hanger rods, which has the advantages of vacuuming and adjusting the appropriate humidity and is conducive to the production of ultra-fine hanger rods. It solves the problem that the existing extrusion mechanism for high-temperature resistant recrystallized silicon carbide hanger rods cannot remove bubbles in the blank, which causes bubbles to easily break on the surface of the blank during product extrusion, affecting the surface quality, and cannot adjust the mud material with appropriate humidity. Because the size of the equipment extrusion force is the key issue in extrusion molding, if the extrusion force is too small, the mud material must have a high water content to be extruded, so the formed blank has low strength and large shrinkage, while if the extrusion force is too large, the friction resistance is large, the equipment load is increased, and it is not conducive to the production of ultra-fine hanger rods.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extrusion mechanism for a high-temperature resistant recrystallized silicon carbide hanging rod, comprising an extrusion barrel, a U-shaped fixing frame is fixedly connected to the right end of the top of the U-shaped fixing frame, a vacuum pump is fixedly installed on the right end of the top of the extrusion barrel, the air inlet end of the vacuum pump is connected to the right end of the top of the extrusion barrel through a pipeline, a mixing box is fixedly installed on the left end of the top of the extrusion barrel, a humidity detector is fixedly installed on the right end of the top of the mixing box, and a probe of the humidity detector extends to the inner cavity of the mixing box, an electric heating block is fixedly connected to the lower end of the inner cavity of the mixing box, an injection pipe is arranged at the upper end of the left side of the mixing box, and a liquid control solenoid valve is arranged at one end of the injection pipe.

[0006] Preferably, the left and right ends of the bottom of the extruder are fixedly connected with support legs, a control panel is fixedly installed on the front surface of the support leg, a support frame is fixedly connected to the right side of the support leg, and a support plate is fixedly connected to the top of the support frame.

[0007] Preferably, a drive motor is fixedly installed on the left side of the extrusion barrel, a push screw is fixedly connected to the output end of the drive motor, a cross fixing frame is fixedly connected to the right end of the inner cavity of the extrusion barrel, and a fixing rod is fixedly connected to the middle end of the right side of the cross fixing frame.

[0008] Preferably, a feeding pipe is provided at the left end of the top of the mixing box, and a sealing cover is provided at the upper end of the feeding pipe.

[0009] Preferably, a mixing motor is fixedly installed at the middle end of the top of the mixing box, a rotating shaft is fixedly connected to the output end of the mixing motor, and a stirring rod is fixedly connected to the outer surface of the rotating shaft.

[0010] Preferably, a material guide pipe is connected between the middle end of the bottom of the mixing box and the left end of the top of the extrusion cylinder, and a solenoid valve is provided on the inner surface of the material guide pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model provides a liquid injection tube, a humidity detector, a mixing box, a vacuum pump, a liquid control solenoid valve, an electric heating block and a pushing screw, so that the structure has the advantages of vacuuming and adjusting the appropriate humidity and is conducive to the production of ultra-fine hanging rods. The utility model is simple to operate, easy to use, and has excellent performance, which is conducive to market promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from the third viewing angle.

[0016] In the figure: 1. extruder; 2. control panel; 3. drive motor; 4. material guide pipe; 5. liquid injection pipe; 6. feeding pipe; 7. mixing motor; 8. humidity detector; 9. mixing box; 10. fixing rod; 11. vacuum pump; 12. U-shaped fixing frame; 13. support plate; 14. support frame; 15. support leg; 16. liquid control solenoid valve; 17. rotating shaft; 18. stirring rod; 19. electric heating block; 20. pushing screw; 21. cross fixing frame. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The extrusion barrel 1, control panel 2, drive motor 3, material guide pipe 4, injection pipe 5, feeding pipe 6, mixing motor 7, humidity detector 8, mixing box 9, fixing rod 10, vacuum pump 11, U-shaped fixing frame 12, support plate 13, support frame 14, support leg 15, liquid control solenoid valve 16, rotating shaft 17, stirring rod 18, electric heating block 19, pushing screw 20 and cross fixing frame 21 of the present application are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0021] See also Figure 1-3A high-temperature resistant recrystallized silicon carbide hanging rod extrusion mechanism includes an extrusion barrel 1, a U-shaped fixing frame 12 is fixedly connected to the right end of the top of the extrusion barrel 1, a vacuum pump 11 is fixedly installed on the right end of the top of the U-shaped fixing frame 12, the air inlet end of the vacuum pump 11 is connected to the right end of the top of the extrusion barrel 1 through a pipeline, a mixing box 9 is fixedly installed on the left end of the top of the extrusion barrel 1, a humidity detector 8 is fixedly installed on the right end of the top of the mixing box 9, and the probe of the humidity detector 8 extends to the inner cavity of the mixing box 9, the lower end of the inner cavity of the mixing box 9 is fixedly connected to an electric heating block 19, an injection pipe 5 is arranged on the upper end of the left side of the mixing box 9, and a liquid control solenoid valve 16 is arranged at one end of the injection pipe 5.

[0022] The left and right ends of the bottom of the extruder 1 are fixedly connected with support legs 15, the front surface of the support legs 15 is fixedly installed with a control panel 2, the right side of the support legs 15 is fixedly connected with a support frame 14, and the top of the support frame 14 is fixedly connected with a support plate 13.

[0023] Through the above technical solution, the arrangement of the support plate 13 can prevent the extruded blank from bending and deforming.

[0024] A driving motor 3 is fixedly installed on the left side of the extrusion barrel 1, and a pushing screw 20 is fixedly connected to the output end of the driving motor 3. A cross fixing frame 21 is fixedly connected to the right end of the inner cavity of the extrusion barrel 1, and a fixing rod 10 is fixedly connected to the middle end of the right side of the cross fixing frame 21.

[0025] Through the above technical solution, the setting of the fixing rod 10 facilitates the production of the ultra-thin hollow suspension rod.

[0026] A feeding pipe 6 is provided at the left end of the top of the mixing box 9, and a sealing cover is provided at the upper end of the feeding pipe 6.

[0027] A mixing motor 7 is fixedly installed at the middle end of the top of the mixing box 9 , a rotating shaft 17 is fixedly connected to the output end of the mixing motor 7 , and a stirring rod 18 is fixedly connected to the outer surface of the rotating shaft 17 .

[0028] Through the above technical solution, the mixing motor 7 drives the rotating shaft 17 and the stirring rod 18 to rotate, thereby stirring the blank.

[0029] A material guide pipe 4 is connected between the middle end of the bottom of the mixing box 9 and the left end of the top of the extrusion cylinder 1 , and an electromagnetic valve is provided on the inner surface of the material guide pipe 4 .

[0030] Through the above technical solution, the material guide pipe 4 is provided to facilitate the export of the blanks with appropriate humidity.

[0031] When in use, after the structure is powered on through the external power socket, the mud material that needs to be adjusted to a suitable humidity is fed into the mixing box 9 through the feeding pipe 6 and the sealing cover is tightened. Then, the setting program is input into the control panel 2 and the structure is started. Then, the humidity detector 8 can detect the humidity of the mud material in the mixing box 9 in real time with the assistance of the probe, and the mixing motor 7 drives the rotating shaft 17 and the stirring rod 18 to rotate, which can ensure the uniformity of the humidity of the mud material. If the humidity does not reach the set value, the liquid control solenoid valve 16 is opened, and a certain amount of water can be fed into the mixing box 9 through the injection pipe 5. When the humidity is high, the electric heating block 19 Heating can quickly reduce the humidity in the mud. After the humidity of the mud reaches the set value, the solenoid valve in the guide tube 4 opens, and the mud can enter the extrusion barrel 1. Then, the solenoid valve in the guide tube 4 closes. At this time, the driving motor 3 drives the pushing screw 20 to rotate, and the mud can be pushed to the right end in the extrusion barrel 1. At the same time, the vacuum pump 11 works, and with the assistance of the pipeline, the mud in the extrusion barrel 1 can be evacuated, and the bubbles in the blank can be removed, avoiding the adverse effects of the bubbles. With the cooperation of the fixed rod 10 and the support plate 13, ultra-fine hanging rods can be produced.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extrusion mechanism for a high temperature resistant recrystallized silicon carbide suspension rod, comprising an extrusion barrel (1), characterized in that: The right end of the top of the extrusion barrel (1) is fixedly connected to a U-shaped fixing frame (12), and the right end of the top of the U-shaped fixing frame (12) is fixedly installed with a vacuum pump (11), and the air inlet end of the vacuum pump (11) is connected to the right end of the top of the extrusion barrel (1) through a pipeline. A mixing box (9) is fixedly installed at the left end of the top of the extrusion barrel (1), and a humidity detector (8) is fixedly installed at the right end of the top of the mixing box (9), and the probe of the humidity detector (8) extends to the inner cavity of the mixing box (9). The lower end of the inner cavity of the mixing box (9) is fixedly connected to an electric heating block (19), and an injection pipe (5) is provided at the upper end of the left side of the mixing box (9), and a liquid control solenoid valve (16) is provided at one end of the injection pipe (5).

2. The extrusion mechanism for a high temperature resistant recrystallized silicon carbide suspension rod according to claim 1, characterized in that: The left and right ends of the bottom of the extruder (1) are fixedly connected to support legs (15), the front surface of the support legs (15) is fixedly mounted with a control panel (2), the right side of the support legs (15) is fixedly connected to a support frame (14), and the top of the support frame (14) is fixedly connected to a support plate (13).

3. The extrusion mechanism for a high temperature resistant recrystallized silicon carbide suspension rod according to claim 1, characterized in that: A driving motor (3) is fixedly installed on the left side of the extrusion barrel (1), and a pushing screw (20) is fixedly connected to the output end of the driving motor (3). A cross fixing frame (21) is fixedly connected to the right end of the inner cavity of the extrusion barrel (1), and a fixing rod (10) is fixedly connected to the middle end of the right side of the cross fixing frame (21).

4. The extrusion mechanism for a high temperature resistant recrystallized silicon carbide suspension rod according to claim 1, characterized in that: A feeding pipe (6) is provided at the left end of the top of the mixing box (9), and a sealing cover is provided at the upper end of the feeding pipe (6).

5. The extrusion mechanism for high temperature resistant recrystallized silicon carbide suspension rod according to claim 1, characterized in that: A mixing motor (7) is fixedly mounted at the middle end of the top of the mixing box (9), a rotating shaft (17) is fixedly connected to the output end of the mixing motor (7), and a stirring rod (18) is fixedly connected to the outer surface of the rotating shaft (17).

6. The extrusion mechanism for a high temperature resistant recrystallized silicon carbide suspension rod according to claim 1, characterized in that: A material guide pipe (4) is connected between the middle end of the bottom of the mixing box (9) and the left end of the top of the extrusion cylinder (1), and a solenoid valve is arranged on the inner surface of the material guide pipe (4).

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