A rubber extruder sizing mechanism

Abstract

The utility model discloses a kind of rubber extruding machine shaping mechanism, comprising: mechanism base, mechanism shell and warming hot melting bin;The utility model relates to the technical field of rubber processing equipment, and the present mechanism is accurately temperature-controlled to rubber particles by convolute heating coupling structure: after melting by warming hot melting bin, it will be stably transported to the opposite covering bin, and then symmetrical supporting covering structure is uniformly pressed by lateral, so that rubber material in flowing state always maintains stable wrapping state in shaping process, effectively avoids material overflow, this bidirectional collaborative design realizes three major advantages: first, rubber product internal structure is more dense uniform;Second, it can satisfy high-precision size requirement and other special process standards, and finally the shaping effect is significantly better than similar equipment on market, especially suitable for the rubber product production scene with strict uniformity requirement.

Description

Technical Field

[0001] This utility model relates to the field of rubber processing equipment technology, specifically a shaping mechanism for a rubber extruder. Background Technology

[0002] Rubber extrusion molding is a core process in the production of tire treads, hoses, and other products. Its principle is to continuously push preheated and softened rubber compound into a specific die using a screw extruder, shaping complex cross-sectional shapes. The key to this process is precise control of three parameters: temperature must gradually increase from the barrel to the die to ensure smooth extrusion and a smooth surface; screw pressure is controlled by adjusting the compression ratio and length-to-diameter ratio, directly affecting the product's density; and extrusion speed must be dynamically matched with the screw speed and the plasticity of the rubber compound—too high a speed can easily lead to surface roughness or even charring, while too low a speed reduces production efficiency. The difficulty lies in controlling the deformation of the rubber compound after extrusion: due to elastic recovery, for composite rubber… The materials also present two major challenges: different rubber components are prone to asynchronous vulcanization due to differences in polarity, requiring the addition of compatibilizers or the use of co-vulcanization systems; the interfacial bonding between reinforcing materials such as fibers and metals and rubber is weak, requiring surface treatment to form chemical bonds or mechanical interlocking, while coordinating the rheological properties of each component to prevent delamination during processing, especially when processing easily flowing fine raw materials. Traditional vertical extrusion methods are difficult to achieve precise molding. Existing technologies may already have solutions to these problems, but this case aims to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a rubber extrusion machine shaping mechanism, comprising: a mechanism base, a mechanism shell, and a heating and melting chamber, wherein the heating and melting chamber is mounted on the mechanism shell, the mechanism shell is mounted on the mechanism base, a symmetrical support and covering structure is installed inside the mechanism shell, and a pair of rotary heating coupling structures are respectively installed inside the mechanism shell, wherein the rotary heating coupling structure comprises: a melt conveying rod, a winding heating column, a first connecting mounting block, a pair of telescopic air rods, a telescopic through pipe, and a second connecting mounting block;

[0004] The melt delivery rod is installed inside the housing of the mechanism and is inserted into the winding heating column. The first connecting block is connected to the melt delivery rod. A pair of telescopic air rods are respectively installed on the first connecting block and connected to the second connecting block. The telescopic tube is movably inserted into the second connecting block.

[0005] It should be noted that, as described above, the rubber raw material is fed into the heating and melting chamber through the injection port. The rubber raw material is heated and melted within the chamber. Simultaneously, other additives or auxiliary materials to be mixed can be added to the heating and melting chamber, where they also melt and mix. The melted material then flows downwards gradually under gravity via a pair of melt conveying rods. The winding heating column provides a suitable temperature for the melt conveying rods, ensuring the rubber mixture maintains optimal fluidity during its flow. The pair of telescopic air rods on the first connecting block... The extension of the body will cause the second connecting block to move downwards, and the downward-moving second connecting block will couple with the connecting protrusion. At the same time, the telescopic tube, due to its telescopic nature, will be driven and extend into the connecting protrusion, thus facilitating the flow of rubber raw material from the melt conveying rod through the telescopic tube into the lower pairing and coating chamber for subsequent extrusion molding. The closed door on the outer shell of the mechanism can easily remove the molded rubber product between the pairing and coating chambers from the outer shell of the mechanism after extrusion molding. The shock absorber on the base of the mechanism can make the entire mechanism more stable during operation and less prone to shaking and tilting.

[0006] Preferably, the symmetrical support and covering structure includes: a pair of connecting protrusions, a pair of mating power housings, a pair of mating power motors, a pair of mating screws, a pair of mating covering chambers, a pair of side extrusion hydraulic rods, a pair of side extrusion sliders, a pair of vent holes, and an inner housing support.

[0007] A pair of connecting protrusions are respectively installed on a pair of matching covering chambers, and the pair of connecting protrusions are respectively movably connected to a pair of second connecting mounting blocks. A pair of telescopic tubes are respectively movably inserted into a pair of connecting protrusions. The matching power housing is installed on the outer shell of the mechanism. The matching power motor is installed inside the matching power housing. The matching screw is installed inside the outer shell of the mechanism, and the matching screw is connected to the matching power motor. A pair of matching covering chambers are respectively fitted onto the matching screw. A pair of side extrusion hydraulic rods are respectively installed inside the outer shell of the mechanism. A pair of side extrusion sliders are respectively installed on a pair of side extrusion hydraulic rods, and the pair of side extrusion sliders are respectively movably inserted into a pair of matching covering chambers. A pair of vent holes are respectively installed on a pair of matching covering chambers. The inner housing support is installed inside the outer shell of the mechanism.

[0008] It should be noted that, as described above, the flowing rubber enters the bonding and coating chamber through the telescopic pipe. After reaching the appropriate injection volume, it drives a pair of corresponding side extrusion hydraulic rods to extend, thereby causing the side extrusion sliders to move closer together within the bonding and coating chamber. This compresses the liquid rubber within the chamber, while air is expelled from the vent. Once the rubber solution cools and solidifies, it drives the bonding power motor within the bonding power housing to rotate, causing the bonding screw to rotate. Because the threads on the bonding screw are symmetrical and opposite, the rotation of the bonding screw causes the bonding and coating chambers to move and separate. After separation, the rubber molded parts inside can be easily removed, and the residue falls onto the receiving seat inside the housing and is collected and cleaned after processing.

[0009] Preferably, the coupling power housing is provided with a maintenance and inspection port;

[0010] Preferably, the heating and melting chamber is provided with a material injection port;

[0011] Preferably, the outer casing of the mechanism is provided with a closed hatch;

[0012] Preferably, a shock absorber is provided on the base of the mechanism.

[0013] Beneficial effects

[0014] This utility model provides a shaping mechanism for a rubber extruder. Compared with existing technologies, this shaping mechanism for a rubber extruder offers the following advantages: It uses a rotary heating coupling structure to precisely control the temperature of rubber granules. After melting in the heated melting chamber, the rubber granules are stably conveyed to the co-coating chamber. Subsequently, a symmetrical support and coating structure applies uniform lateral pressure, ensuring that the flowing rubber material remains stably wrapped during the shaping process, effectively preventing material overflow. This bidirectional collaborative design achieves three major advantages: First, the internal structure of the rubber product is more dense and uniform; second, it can meet special process standards such as high-precision dimensional requirements, resulting in a significantly better shaping effect than similar equipment on the market. It is particularly suitable for rubber product production scenarios with stringent requirements for texture uniformity. Attached Figure Description

[0015] Figure 1 This is a front sectional view of the shaping mechanism of a rubber extruder according to the present invention.

[0016] Figure 2 for Figure 1 A magnified view of the letter "A" in the diagram.

[0017] In the diagram: 1. Mechanism base; 2. Mechanism shell; 3. Heating and melting chamber; 4. Melt conveying rod; 5. Winding heating column; 6. First connecting block; 7. Telescopic air rod; 8. Telescopic through pipe; 9. Second connecting block; 10. Connecting key; 11. Matching power shell; 12. Matching power motor; 13. Matching screw; 14. Matching covering chamber; 15. Side extrusion hydraulic rod; 16. Side extrusion slider; 17. Vent hole; 18. Inner shell receiving seat. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0020] Example

[0021] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-2As shown, a shaping mechanism for a rubber extruder includes: a mechanism base 1, a mechanism housing 2, and a heating and melting chamber 3. The heating and melting chamber 3 is mounted on the mechanism housing 2, which is mounted on the mechanism base 1. A symmetrical support and covering structure is installed inside the mechanism housing 2. A pair of rotary heating coupling structures are respectively installed inside the mechanism housing 2. The rotary heating coupling structure includes: a melt conveying rod 4, a winding heating column 5, a first connecting mounting block 6, a pair of telescopic air rods 7, a telescopic through pipe 8, and a second connecting mounting block 9. The melt conveying... Rod 4 is installed inside the outer shell 2 of the mechanism, and the melt conveying rod 4 is inserted into the winding heating column 5. The first connecting mounting block 6 is connected to the melt conveying rod 4. A pair of telescopic air rods 7 are respectively installed on the first connecting mounting block 6, and the pair of telescopic air rods 7 are respectively connected to the second connecting mounting block 9. The telescopic through pipe 8 is movably inserted into the second connecting mounting block 9. The symmetrical support and covering structure includes: a pair of connecting protrusions 10, a mating power shell 11, a mating power motor 12, a mating screw 13, and a pair of mating covering chambers 1. 4. A pair of side-pressing hydraulic rods 15, a pair of side-pressing sliders 16, a pair of vent holes 17, and an inner housing receiving seat 18; a pair of connecting protrusions 10 are respectively installed on a pair of mating covering chambers 14, and the pair of connecting protrusions 10 are respectively movably connected to a pair of second connecting mounting blocks 9; a pair of telescopic tubes 8 are respectively movably inserted into a pair of connecting protrusions 10; the mating power housing 11 is installed on the mechanism housing 2; the mating power motor 12 is installed inside the mating power housing 11; and the mating screw 13 is installed on the mechanism housing 2. Inside, the mating screw 13 is connected to the mating power motor 12, a pair of mating covering chambers 14 are respectively fitted on the mating screw 13, a pair of side extrusion hydraulic rods 15 are respectively installed inside the mechanism housing 2, a pair of side extrusion sliders 16 are respectively installed on the pair of side extrusion hydraulic rods 15, and the pair of side extrusion sliders 16 are respectively movably inserted into the pair of mating covering chambers 14, a pair of vent holes 17 are respectively installed on the pair of mating covering chambers 14, and the housing receiving seat 18 is installed inside the mechanism housing 2.

[0022] According to the appendix Figure 1-2It is concluded that rubber raw materials are fed into the heating and melting chamber 3 through the injection port. The rubber raw materials are heated and melted within the chamber. Simultaneously, other additives or auxiliary materials to be mixed can be added to the chamber, where they also melt and mix. The melted material then flows downwards under gravity through a pair of melt conveying rods 4. The heating column 5 provides a suitable temperature for the melt conveying rods 4, ensuring the rubber mixture... During the flow process, optimal fluidity is maintained. The extension of the pair of telescopic air rods 7 on the first connecting block 6 causes the second connecting block 9 to move downwards. The downward-moving second connecting block 9 couples with the connecting key 10. Simultaneously, the telescopic tube 8, due to its telescopic nature, is driven and extends into the connecting key 10, facilitating the flow of rubber raw material from the melt conveying rod 4 through the telescopic tube 8 into the lower coupling and covering chamber 14 for subsequent extrusion molding. The outer shell 2 of the mechanism is equipped with... The closed hatch allows for convenient removal of the molded rubber products from the pair of overlapping chambers 14 after extrusion molding, from the outer shell 2. The shock absorbers on the base 1 ensure greater stability during operation, preventing swaying and tilting. The flowing rubber enters the overlapping chambers 14 through the telescopic pipe 8. Upon reaching the appropriate injection volume, it drives the extension of a pair of corresponding side extrusion hydraulic rods 15, causing the side extrusion sliders 16 to move closer together within the overlapping chambers 14, thus ensuring smooth flow within the overlapping chambers 14. The liquid rubber is squeezed, and air is discharged from the vent hole 17. After the rubber solution cools and solidifies, it drives the mating power motor 12 in the mating power housing 11 to operate, which in turn causes the mating screw 13 to rotate. Since the threads on the mating screw 13 are symmetrical and opposite threads, when the mating screw 13 rotates, the mating covering chamber 14 moves and separates from each other. After separation, the rubber molded workpiece inside can be easily removed, and the residue will fall onto the receiving seat 18 inside the housing and be collected and cleaned after processing.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shaping mechanism for a rubber extrusion machine, comprising: The mechanism comprises a base, an outer shell, and a heating and melting chamber. The heating and melting chamber is mounted on the outer shell, which is mounted on the base. A symmetrical support and covering structure is installed inside the outer shell. A pair of rotary heating coupling structures are installed inside the outer shell. The rotary heating coupling structure comprises: a melt conveying rod, a winding heating column, a first connecting block, a pair of telescopic air rods, a telescopic pipe, and a second connecting block. The melt delivery rod is installed inside the housing of the mechanism and is inserted into the winding heating column. The first connecting block is connected to the melt delivery rod. A pair of telescopic air rods are respectively installed on the first connecting block and connected to the second connecting block. The telescopic tube is movably inserted into the second connecting block.

2. The shaping mechanism of a rubber extrusion machine according to claim 1, characterized in that, The symmetrical support and covering structure includes: a pair of connecting protrusions, a pair of mating power shells, a pair of mating power motors, a pair of mating screws, a pair of mating covering chambers, a pair of side extrusion hydraulic rods, a pair of side extrusion sliders, a pair of vent holes, and an inner shell support seat. A pair of connecting protrusions are respectively installed on a pair of matching covering chambers, and the pair of connecting protrusions are respectively movably connected to a pair of second connecting mounting blocks. A pair of telescopic tubes are respectively movably inserted into a pair of connecting protrusions. The matching power housing is installed on the outer shell of the mechanism. The matching power motor is installed inside the matching power housing. The matching screw is installed inside the outer shell of the mechanism, and the matching screw is connected to the matching power motor. A pair of matching covering chambers are respectively fitted onto the matching screw. A pair of side extrusion hydraulic rods are respectively installed inside the outer shell of the mechanism. A pair of side extrusion sliders are respectively installed on a pair of side extrusion hydraulic rods, and the pair of side extrusion sliders are respectively movably inserted into a pair of matching covering chambers. A pair of vent holes are respectively installed on a pair of matching covering chambers. The inner housing support is installed inside the outer shell of the mechanism.

3. The shaping mechanism of a rubber extruder according to claim 2, characterized in that, The coupling power housing is provided with a maintenance and inspection port.

4. The shaping mechanism of a rubber extruder according to claim 3, characterized in that, The heating and melting chamber is equipped with a material injection port.

5. The shaping mechanism of a rubber extruder according to claim 4, characterized in that, The outer shell of the mechanism is equipped with a sealed hatch.

6. The shaping mechanism of a rubber extrusion machine according to claim 5, characterized in that, The mechanism base is equipped with a shock absorber.

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