Screw combined structure based on high-shading fireproof PC material

Abstract

The utility model discloses a screw combination structure based on high shading fireproof PC material, which comprises a first screw main body, a second screw main body, a driving motor and a heating pipe, one side of the first screw main body is provided with the second screw main body, one end of the second screw main body is provided with the driving motor, and the other end of the second screw main body is provided with the heating pipe. Heating pipes are embedded in the central positions in the first screw main body and the second screw main body, resistance elements are arranged in the heating pipes, heat conduction rings are uniformly distributed on the outer sides of the heating pipes, and friction materials are arranged on the sides, close to the inner walls of the first screw main body and the second screw main body, of the heat conduction rings. According to the screw assembly, the first screw main body, the second screw main body, the driving motor, the rotating shaft, the heating pipe, the resistor element, the heat conducting ring and the friction material are mounted, so that the screw assembly can keep a certain temperature, the material melting uniformity and fluidity during production of the high-shading fireproof PC material are ensured, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw combination technical field, concretely is a screw combination structure based on high shading fireproof PC material. BACKGROUND

[0002] High shading PC material has excellent shading effect, can effectively block the penetration of light, and this material is usually used in the application scene that needs high shading, such as LED lamps and lanterns, display screen back light board etc., and in the process of high shading PC material production, the material that mixes evenly is sent into screw extruder and is molten extruded.

[0003] Screw combination is the main component in screw extruder, generally including screw main body, helical blade and driving equipment, since high shading fireproof PC material has special physical and chemical properties, these properties require keeping molten state in the material extrusion process, and general screw combination cannot be self-heating, leading to the heat transferred to the material will significantly reduce, and it is easy to make the molten state of material in the extrusion process inconsistent, and part of material can not be completely molten due to insufficient temperature, and thus can lead to the performance of prepared high shading fireproof PC material to decline or product defects. SUMMARY

[0004] The utility model discloses a screw combination structure based on high shading fireproof PC material to solve the problem in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a screw combination structure based on high shading fireproof PC material, including first screw main body, second screw main body, driving motor and heating tube, one side of first screw main body is provided with second screw main body, and one end of second screw main body is provided with driving motor, and the central position of first screw main body and second screw main body inside is embedded with heating tube, and the inside of heating tube is provided with electric resistance element, and the outside of heating tube is evenly distributed with heat conduction ring, and the side of heat conduction ring close to the inner wall of first screw main body and second screw main body is provided with friction material.

[0006] Preferably, the outside of the first screw main body and the second screw main body is evenly provided with helical blades, and the helical blades on the first screw main body and the second screw main body are distributed in a staggered manner.

[0007] Preferably, one end inside the first screw main body and the second screw main body is provided with a rotating clamp, and one end of the heating tube close to the rotating clamp is provided with a clamping groove.

[0008] Preferably, one end of the first screw body and the second screw body is respectively provided with a driven gear and a driving gear through a rotating shaft, and the driven gear and the driving gear are engaged, and the output end of the driving motor is connected with the rotating shaft on the second screw body.

[0009] Preferably, one end of the rotating shaft is provided with a mounting block, and one end of the first screw body and the second screw body close to the mounting block is provided with a mounting sleeve matched with the mounting block.

[0010] Preferably, the heat-conducting ring is made of copper alloy material, and the friction material is made of copper-nickel-based alloy.

[0011] Preferably, the two sides of the mounting block are provided with grooves, and the inside of the grooves is provided with a limiting block through a return spring, and the two sides of the inside of the mounting sleeve are provided with limiting grooves corresponding to the limiting block.

[0012] Preferably, the two sides of the inside of the groove are provided with guide grooves, and the two sides of one end of the limiting block are provided with guide blocks matched with the guide grooves.

[0013] Compared with the prior art, the screw combination structure based on the high-shading fireproof PC material has the advantages that: the first screw body, the second screw body, the driving motor, the rotating shaft, the heating pipe, the resistance element, the heat-conducting ring and the friction material are installed, the heating pipe is embedded into the central position inside the first screw body and the second screw body, the resistance element is arranged inside the heating pipe, heat can be generated after electrification, the heat is uniformly transmitted to the inner side wall of the first screw body and the second screw body through the heat-conducting ring, so that the first screw body and the second screw body can be self-heated, the screw combination can maintain a certain temperature, the uniformity and flowability of material melting during production of the high-shading fireproof PC material are ensured, the surface of the extruded product is smooth, free of bubbles and cracks and other defects, and therefore the product quality is improved, the heat-conducting ring is made of copper alloy material and has high heat-conducting effect, and the friction material is arranged on the side of the heat-conducting ring close to the inner side wall of the first screw body and the second screw body, the friction material is made of copper-nickel-based alloy, an oxidation film is formed on the surface of the friction material during hot-state abrasion, the oxidation film protects the heat-conducting ring during abrasion and also helps to improve the friction heat generation effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 It is the front view structural schematic diagram of the utility model;

[0016] Figure 2 It is the first screw body cross section structural schematic diagram of the utility model;

[0017] Figure 3 It is the first screw body side view cross section structural schematic diagram of the utility model;

[0018] Figure 4 It is the Figure 1 It is the enlarged structure schematic diagram of A place in the utility model;

[0019] Figure 5 It is the installation block cross section structural schematic diagram of the utility model.

[0020] In the drawing: 1, first screw body;2, second screw body;3, spiral blade;4, installation sleeve;5, rotating shaft;6, driven gear;7, driving motor;8, driving gear;9, heating pipe;10, resistance element;11, heat conducting ring;12, friction material;13, limiting groove;14, limiting block;15, installation block;16, rotating clamping piece;17, clamping groove;18, guide groove;19, recess;20, return spring. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides an embodiment based on high light shielding fireproof PC material's screw combination structure, including first screw body 1, second screw body 2, driving motor 7 and heating pipe 9, first screw body 1 one side is provided with second screw body 2, and one end of second screw body 2 is provided with driving motor 7;

[0023] One end of first screw body 1 and second screw body 2 is respectively provided with driven gear 6 and driving gear 8 through rotating shaft 5, and driven gear 6 and driving gear 8 are engaged, and the output end of driving motor 7 is connected with rotating shaft 5 on second screw body 2;

[0024] The outer sides of the first screw body 1 and the second screw body 2 are uniformly provided with helical blades 3, the first screw body 1 and the second screw body 2 are arranged in a high light-shielding fireproof PC material production extruder, a driving motor 7 drives a driving gear 8 to rotate, so that a driven gear 6 rotates, thereby driving the first screw body 1 and the second screw body 2 to rotate through a rotating shaft 5, and the materials for preparing the high light-shielding fireproof PC material are melted and extruded by the helical blades 3;

[0025] The helical blades 3 on the first screw body 1 and the second screw body 2 are staggered and distributed, and stronger shear force is generated in the rotating process, which helps to more fully and uniformly mix the materials;

[0026] Heating pipes 9 are embedded at the central positions inside the first screw body 1 and the second screw body 2, the inside of each heating pipe 9 is provided with a resistance element 10, and the outside of each heating pipe 9 is uniformly distributed with a heat-conducting ring 11;

[0027] The resistance element 10 can generate heat after being powered on, and the heat is uniformly transmitted to the inner side walls of the first screw body 1 and the second screw body 2 through the heat-conducting ring 11, so that the first screw body 1 and the second screw body 2 can be self-heated, the screw combination can maintain a certain temperature, the uniformity and flowability of the material melting during the production of the high light-shielding fireproof PC material are ensured, the surface of the extruded product is smooth, free of bubbles, cracks and other defects, and thus the product quality is improved;

[0028] Each heat-conducting ring 11 is made of copper alloy material and has high heat-conducting effect, and each heat-conducting ring 11 is provided with a friction material 12 on the side close to the inner wall of the first screw body 1 or the second screw body 2;

[0029] Each friction material 12 is made of copper-nickel-based alloy, and a layer of oxide film is formed on the surface of the friction material 12 during hot-state wear, which protects the heat-conducting ring 11 during wear and helps to improve the friction heat generation effect;

[0030] One end inside the first screw body 1 and the second screw body 2 is provided with a rotating clamp 16, and one end of the heating pipe 9 close to the rotating clamp 16 is provided with a clamping groove 17, the rotating clamp 16 rotates in the clamping groove 17 when the first screw body 1 and the second screw body 2 rotate, and the heating pipe 9 is fixed and kept stationary in the extruder through a fixing member;

[0031] One end of the rotating shaft 5 is provided with a mounting block 15, and one end of the first screw body 1 and the second screw body 2 close to the mounting block 15 is provided with a mounting sleeve 4 matched with the mounting block 15;

[0032] The two sides of the mounting block 15 are provided with grooves 19, and the inside of the grooves 19 is provided with limiting blocks 14 through return springs 20; the inside of the mounting sleeve 4 is provided with limiting grooves 13 corresponding to the limiting blocks 14;

[0033] When the first screw body 1 and the second screw body 2 are installed with the rotating shaft 5, the mounting block 15 is inserted and connected with the mounting sleeve 4, and when the limiting block 14 passes through the limiting groove 13, the limiting block 14 is clamped into the limiting groove 13 under the action of the return spring 20, so that the installation and disassembly of the first screw body 1 and the second screw body 2 are facilitated;

[0034] The inside of the grooves 19 is provided with guide grooves 18 on both sides, and the two sides of one end of the limiting block 14 are provided with guide blocks matched with the guide grooves 18, so as to guide and limit the return spring 20 and prevent it from being twisted and displaced;

[0035] The specific model and specification of the driving motor 7 and the resistance element 10 need to be determined according to the specification parameters and the like of the device, and the selection and calculation method is the prior art, so it will not be described in detail.

[0036] Working principle: when the embodiment is used, the first screw body 1 and the second screw body 2 are arranged in a production extruder for high-shading fireproof PC material, the driving motor 7 drives the driving gear 8 to rotate, so that the driven gear 6 rotates, thereby driving the first screw body 1 and the second screw body 2 to rotate through the rotating shaft 5, and the material for preparing high-shading fireproof PC material is melted and extruded by the helical blade 3, the heating pipe 9 is embedded into the central position inside the first screw body 1 and the second screw body 2, the resistance element 10 is arranged inside the heating pipe 9, and heat can be generated after being electrified, the heat is uniformly transmitted to the inner side wall of the first screw body 1 and the second screw body 2 through the heat-conducting ring 11, so that the first screw body 1 and the second screw body 2 can be self-heated, the screw combination can maintain a certain temperature, so as to ensure the uniformity and fluidity of the material melting during the production of high-shading fireproof PC material, so that the surface of the extruded product is smooth, free of bubbles and cracks, and the like, thereby improving the product quality, the heat-conducting ring 11 is made of copper alloy material and has high heat-conducting effect, and the side of the heat-conducting ring 11 close to the inner side wall of the first screw body 1 and the second screw body 2 is provided with a friction material 12, the friction material 12 is made of copper-nickel-based alloy, and an oxide film is formed on the surface of the friction material 12 during hot-state abrasion, the oxide film plays a protective role for the heat-conducting ring 11 during the abrasion process, and also helps to improve the friction heating effect, in addition, when the first screw body 1 and the second screw body 2 are installed with the rotating shaft 5, the mounting block 15 is inserted and connected with the mounting sleeve 4, and when the limiting block 14 passes through the limiting groove 13, the limiting block 14 is clamped into the limiting groove 13 under the action of the return spring 20, so that the installation and disassembly of the first screw body 1 and the second screw body 2 are facilitated.

[0037] Obviously, the above described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative labor should belong to the protection scope of the present application.

Claims

1. A screw combination structure based on high light shielding fireproof PC material, characterized in that, The utility model provides a double screw extruder, including first screw body (1), second screw body (2), drive motor (7) and heating tube (9), one side of first screw body (1) is provided with second screw body (2), and one end of second screw body (2) is provided with drive motor (7), and the central position of first screw body (1) and second screw body (2) inside is embedded with heating tube (9), the inside of heating tube (9) is provided with electric resistance element (10), the outside of heating tube (9) is evenly distributed with heat conducting ring (11), and one side of heat conducting ring (11) near first screw body (1) and second screw body (2) inner wall is provided with friction material (12).

2. A screw combination structure based on high light shielding fireproof PC material according to claim 1, characterized in that: The outside of first screw body (1) and second screw body (2) is evenly provided with spiral blade (3), and the spiral blade (3) on first screw body (1) and second screw body (2) is staggered distribution.

3. The screw combination structure based on high light shielding fireproof PC material according to claim 1, characterized in that: One end inside first screw body (1) and second screw body (2) is provided with rotating clamp (16), and one end of heating tube (9) near rotating clamp (16) is provided with clamping groove (17).

4. The screw combination structure based on high light shielding fireproof PC material according to claim 1, characterized in that: One end of first screw body (1) and second screw body (2) is provided with driven gear (6) and driving gear (8) through shaft (5) respectively, and driven gear (6) and driving gear (8) are engaged, and the output end of drive motor (7) is connected with the shaft (5) on second screw body (2).

5. The screw combination structure based on high light shielding fireproof PC material according to claim 4, characterized in that: One end of shaft (5) is provided with mounting block (15), and one end of first screw body (1) and second screw body (2) near mounting block (15) is provided with mounting sleeve (4) matched with mounting block (15).

6. The screw combination structure based on high light shielding fireproof PC material according to claim 1, characterized in that: The heat conducting ring (11) is made of copper alloy material, and the friction material (12) is made of copper-nickel-based alloy.

7. The screw combination structure based on high light shielding fireproof PC material according to claim 5, characterized in that: The both sides of mounting block (15) are provided with recess (19), and the inside of recess (19) is provided with limiting block (14) through reset spring (20), and the both sides of mounting sleeve (4) are provided with limiting slot (13) corresponding to limiting block (14).

8. The screw combination structure based on high light shielding fireproof PC material according to claim 7, characterized in that: The both sides of recess (19) are provided with guide slot (18), and the both sides of one end of limiting block (14) are provided with guide block matched with guide slot (18).

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