Double-flow tire tread rubber extruder fast switching rubber port profile plate

Abstract

The application discloses a double-guiding type tire tread rubber extruder quick switching rubber port profile plate, and belongs to the technical field of tire manufacturing. The profile plate comprises a lower profile plate and an upper profile plate. The middle part of the lower profile plate is a lower extrusion platform than the two sides. Drainage grooves are formed in the two sides of the extrusion platform. The upper profile plate is detachably fixed above the lower profile plate. The upper surface of the upper profile plate is fixed with an annular sliding rail. A lifting screw sleeve is slidingly installed on the annular sliding rail. A lifting screw rod is threadedly installed in the lifting screw sleeve. The bottom end of the lifting screw rod is fixed with a lower pressing plate located above the extrusion platform. The profile plate can drive the lower pressing plate to vertically lift by rotating the lifting screw sleeve, so that the distance between the lower pressing plate and the extrusion platform can be adjusted. Compared with the traditional profile plate, the profile plate can adapt to the rubber extrusion work of tires with different tread thicknesses, and has good versatility.

Description

Technical Field

[0001] This invention relates to the field of tire manufacturing technology, specifically to a dual-flow tire tread extruder with a quick-switching die plate. Background Technology

[0002] Currently, in the tire production process, tread extrusion is an important step in the production of semi-finished tires. Depending on the specifications and functions of the tires, the required performance and size of the tread rubber vary.

[0003] In the existing production process, since the tread thickness of different models and specifications of tires is different, while the size of the extrusion opening of the die plate is fixed, different models of die plates need to be replaced to match different models and specifications of tires when processing them, which results in poor versatility. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a dual-flow tire tread extruder with a quick-switching die plate. The die plate can drive the lower pressure plate to rise and fall vertically by rotating the lifting screw sleeve, thereby adjusting the distance between the lower pressure plate and the extrusion platform. Compared with traditional die plates, this die plate can adapt to the extrusion of tires with different tread thicknesses and has good versatility.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is implemented as follows:

[0006] A dual-flow tire tread extruder with a rapid material switching die plate includes a lower die plate and an upper die plate. The lower die plate has an extrusion platform in the middle that is lower than the sides, and both sides of the extrusion platform are provided with flow channels. The upper die plate is detachably and fixedly installed above the lower die plate. An annular slide rail is fixed on the upper surface of the upper die plate, and a lifting sleeve is slidably installed on the annular slide rail. A lifting screw is installed inside the lifting sleeve through a threaded engagement. The bottom end of the lifting screw is fixed to a lower pressure plate located directly above the extrusion platform. By rotating the lifting sleeve, the lower pressure plate can be driven to rise and fall vertically, thereby adjusting the distance between the lower pressure plate and the extrusion platform.

[0007] Using the above solution, the die plate can drive the lower pressing plate to rise and fall vertically by rotating the lifting screw sleeve, thereby adjusting the distance between the lower pressing plate and the extrusion platform. Compared with the traditional die plate, this die plate can adapt to the extrusion work of tires with different tread thicknesses and has good versatility.

[0008] As a preferred embodiment of a dual-flow tire tread extruder for rapid switching of rubber material die plate, guide rods distributed on both sides of the lifting screw and parallel to the lifting screw are fixed above the lower pressure plate. The guide rods pass through and are slidably installed in the upper die plate.

[0009] By adopting the above solution, in order to facilitate the vertical lifting and lowering of the pressure plate, a guide rod is added, which makes the lifting and lowering of the pressure plate more stable and reliable.

[0010] As a preferred embodiment of a dual-flow tire tread extruder for rapid material switching die plate, the upper surface of the lower die plate is fixed with vertically arranged limiting pins distributed on both sides of the extrusion platform, and the lower surface of the upper die plate is provided with limiting holes distributed on both sides of the lower pressure plate and cooperating with the limiting pins.

[0011] To ensure accuracy after assembly, the above solution is adopted. When the limiting hole is fitted onto the limiting pin, the extrusion platform and the pressing plate are aligned vertically, making the assembly more accurate.

[0012] In a preferred embodiment of a dual-flow tire tread extruder for rapid material switching, a tilting frame is installed at both ends of the lower die plate. The tilting frame is rotatably mounted in a rotating hole on the lower die plate via two rotating shafts. A positioning screw is threaded through the top of the tilting frame, and a top head that abuts against the upper surface of the upper die plate is fixed at the lower end of the positioning screw. The diameter of the top head is larger than the diameter of the positioning screw. A positioning groove that mates with the top head is also provided on the upper surface of the upper die plate. The top head abuts against the positioning groove.

[0013] By adopting the above solution, in order to facilitate the installation of the upper die plate on the lower die plate, the flipping frame is rotated to the top of the lower die plate, and the positioning screw is rotated so that the top head abuts against the positioning groove, which will make the assembly more secure.

[0014] As a preferred embodiment of a dual-flow tire tread extruder for rapid switching of rubber material die plate, a rubber box with a shape and size that matches the die plate is installed in the flow channel; the rubber inlet of the rubber box is flush with both sides of the extrusion platform; a flat plate integrally formed with the rubber box is also provided on one side of the rubber box, and a second limiting hole is provided on the flat plate for use with the limiting pin; when the second limiting hole is engaged with the limiting pin, the rubber box is completely fixed.

[0015] Using the above solution, in order to facilitate the collection of the extruded colloid, a colloid box is installed in the drainage channel. When the tire is extruded from between the lower pressing plate and the extrusion platform, the excess colloid will enter the colloid box from both sides of the extrusion platform. In the later stage, only the colloid box needs to be disassembled and replaced.

[0016] After adopting the above technical solution, the beneficial effects of the present invention are:

[0017] 1. This die plate can drive the lower pressing plate to rise and fall vertically by rotating the lifting screw sleeve, thereby adjusting the distance between the lower pressing plate and the extrusion platform. Compared with traditional die plates, this die plate can adapt to the extrusion work of tires with different tread thicknesses and has good versatility.

[0018] 2. To facilitate the vertical lifting and lowering of the pressure plate, a guide rod is added, which makes the lifting and lowering of the pressure plate more stable and reliable.

[0019] 3. To ensure accuracy after assembly, when the limiting hole is engaged with the limiting pin, the extrusion platform and the pressing plate will be aligned vertically, making the assembly more accurate.

[0020] 4. To facilitate the installation of the upper die plate on the lower die plate, rotate the flipping frame to the top of the lower die plate, and rotate the positioning screw to make the top head abut against the positioning groove, which will make the assembly more secure.

[0021] 5. To facilitate the collection of the extruded rubber, a rubber collection box is installed in the drainage channel. When the tire is extruded from between the lower pressing plate and the extrusion platform, the excess rubber will enter the rubber collection box from both sides of the extrusion platform. In the later stage, only the rubber collection box needs to be disassembled and replaced. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 for Figure 1 Exploded view;

[0025] Figure 3 for Figure 1 3D structural diagram of the lower and middle profile plate assembly;

[0026] Figure 4 for Figure 3 Exploded view;

[0027] Figure 5 for Figure 3 Three-dimensional structural diagram of the lower and middle nozzle plate;

[0028] Figure 6 for Figure 1 3D structural diagram of the upper and middle die plate assembly;

[0029] Figure 7 for Figure 6 Exploded view;

[0030] Figure 8 To showcase Figure 6 A three-dimensional diagram of the internal structure.

[0031] The markings in the diagram are: 1-lower die plate; 2-extrusion platform; 3-drainage groove; 4-upper die plate; 5-annular slide rail; 6-lifting screw sleeve; 7-lifting screw; 8-lower pressing plate; 9-guide rod; 10-limiting pin; 11-limiting hole one; 12-tilting frame; 13-rotating shaft; 14-rotating hole; 15-positioning screw; 16-top; 17-positioning groove; 18-polyurethane box; 19-limiting hole two. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 8 As shown, a dual-flow tire tread extruder with a rapid-switching die plate is used for extruding tire tread rubber. It includes a lower die plate 1 and an upper die plate 4. The middle of the lower die plate 1 is an extrusion platform 2 lower than the sides. Both sides of the extrusion platform 2 are provided with flow channels 3. The upper die plate 4 is detachably fixedly installed above the lower die plate 1. An annular slide rail 5 is fixed on the upper surface of the upper die plate 4. A lifting screw sleeve 6 is slidably installed on the annular slide rail 5. A lifting screw 7 is installed inside the lifting screw sleeve 6 through a threaded fit. The bottom end of the lifting screw 7 is fixed with a lower pressure plate 8 located directly above the extrusion platform 2. By rotating the lifting screw sleeve 6, the lower pressure plate 8 can be driven to rise and fall vertically, thereby adjusting the distance between the lower pressure plate 8 and the extrusion platform 2. The die plate can drive the lower pressing plate 8 to rise and fall vertically by rotating the lifting screw sleeve 6, thereby adjusting the distance between the lower pressing plate 8 and the extrusion platform 2. Compared with traditional die plates, this die plate can adapt to the extrusion work of tires with different tread thicknesses and has good versatility.

[0034] like Figure 7 As shown, guide rods 9 are also fixed above the lower pressing plate 8, distributed on both sides of the lifting screw 7 and parallel to the lifting screw 7. The guide rods 9 pass through and are slidably installed in the upper die plate 4. In order to facilitate the vertical lifting and lowering of the lower pressing plate 8, the addition of guide rods 9 makes the lifting and lowering of the lower pressing plate 8 more stable and reliable.

[0035] like Figure 2As shown, the upper surface of the lower die plate 1 is fixed with vertically arranged limiting pins 10 distributed on both sides of the extrusion platform 2, and the lower surface of the upper die plate 4 is provided with limiting holes 11 distributed on both sides of the lower pressing plate 8 and cooperating with the limiting pins 10. In order to ensure the accuracy after assembly, when the limiting holes 11 are engaged with the limiting pins 10, the extrusion platform 2 and the lower pressing plate 8 are vertically aligned, so that the two will be more accurate after assembly.

[0036] like Figure 4 As shown, flip frames 12 are installed at both ends of the lower die plate 1. The flip frames 12 are rotatably installed in the rotating holes 14 opened on the lower die plate 1 via two rotating shafts 13. A positioning screw 15 is threaded through the top of the flip frame 12. The lower end of the positioning screw 15 is fixed with a top head 16 that can abut against the upper surface of the upper die plate 4. The diameter of the top head 16 is larger than the diameter of the positioning screw 15. A positioning groove 17 that cooperates with the top head 16 is also opened on the upper surface of the upper die plate 4. The top head 16 can abut against the positioning groove 17. In order to facilitate the installation of the upper die plate 4 on the lower die plate 1, by rotating the flip frame 12 to the top of the lower die plate 1, and by rotating the positioning screw 15, the top head 16 abuts against the positioning groove 17, which will make the assembly more secure.

[0037] like Figure 4 As shown, a rubber box 18, whose shape and size are perfectly matched, is installed inside the drainage channel 3. The rubber inlet of the rubber box 18 is flush with both sides of the extrusion platform 2. A flat plate integrally formed with the rubber box 18 is also provided on one side, and a second limiting hole 19 is provided on the flat plate to cooperate with the limiting pin 10. When the second limiting hole 19 is engaged with the limiting pin 10, the rubber box 18 is completely fixed. In order to facilitate the collection of the extruded rubber, by installing the rubber box 18 in the drainage channel 3, when the tire is extruded from between the lower pressing plate 8 and the extrusion platform 2, the excess rubber will enter the rubber box 18 from both sides of the extrusion platform 2. Later, only the rubber box 18 needs to be disassembled and replaced.

[0038] The working principle of this utility model:

[0039] Before application, firstly, fit the limiting hole 11 onto the limiting pin 10. At this time, the extrusion platform 2 and the lower pressing plate 8 are vertically aligned, which will make the assembly more accurate. Then, by rotating the flipping frame 12 to the top of the lower die plate 1, and by rotating the positioning screw 15, the top head 16 is made to abut against the positioning groove 17, which will make the assembly more secure. Finally, according to the tread thickness to be processed, the lower pressing plate 8 can be driven to rise and fall vertically by rotating the lifting screw sleeve 6, thereby adjusting the distance between the lower pressing plate 8 and the extrusion platform 2 so that the distance matches the tread thickness.

[0040] In application, the tire tread is introduced between the pressing plate 8 and the extrusion platform 2. By continuously pulling the tire, the tire is continuously extruded from the pressing plate 8 and the extrusion platform 2. During the extrusion process, the excess tread rubber will enter the rubber box 18 from both sides of the extrusion platform 2. Later, only the rubber box 18 needs to be disassembled and replaced.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-flow tire tread extruder with a quick-switching rubber die plate, comprising a lower die plate (1) and an upper die plate (4), wherein the middle of the lower die plate (1) is an extrusion platform (2) lower than the sides, and both sides of the extrusion platform (2) are provided with a flow channel (3). Its features are: The upper die plate (4) is detachably fixedly installed above the lower die plate (1); an annular slide rail (5) is fixed on the upper surface of the upper die plate (4), and a lifting sleeve (6) is slidably installed on the annular slide rail (5). A lifting screw (7) is installed inside the lifting sleeve (6) through a threaded fit. A lower pressing plate (8) located directly above the extrusion platform (2) is fixed at the bottom end of the lifting screw (7); by rotating the lifting sleeve (6), the lower pressing plate (8) can be driven to rise and fall vertically, thereby adjusting the distance between the lower pressing plate (8) and the extrusion platform (2); The upper surface of the lower die plate (1) is fixed with vertically arranged limiting pins (10) distributed on both sides of the extrusion platform (2), and the lower surface of the upper die plate (4) is provided with limiting holes (11) distributed on both sides of the lower pressing plate (8) and cooperating with the limiting pins (10); when the limiting holes (11) are engaged with the limiting pins (10), the extrusion platform (2) and the lower pressing plate (8) are vertically aligned. The drainage channel (3) is equipped with a polyurethane box (18) that matches its shape and size; the inlet of the polyurethane box (18) is flush with both sides of the extrusion platform (2); A flat plate integrally formed with the polyurethane box (18) is also provided on one side. The flat plate has a second limiting hole (19) that is used in conjunction with the limiting pin (10). When the second limiting hole (19) is engaged with the limiting pin (10), the polyurethane box (18) is completely fixed.

2. The dual-flow tire tread extruder with a rapid material switching die plate according to claim 1, characterized in that: Above the pressing plate (8), there are also guide rods (9) distributed on both sides of the lifting screw (7) and parallel to the lifting screw (7). The guide rods (9) pass through and are slidably installed in the upper die plate (4).

3. The dual-flow tire tread extruder with a rapid material switching die plate according to claim 1, characterized in that: The lower opening plate (1) is equipped with flipping frames (12) at both ends. The flipping frames (12) are rotatably installed in the rotating holes (14) opened on the lower opening plate (1) through two rotating shafts (13). The top of the flipping frame (12) is threaded through and fitted with a positioning screw (15). The lower end of the positioning screw (15) is fixed with a top head (16) that can abut against the upper surface of the upper opening plate (4).

4. The dual-flow tire tread extruder with a rapid material switching die plate according to claim 3, characterized in that: The diameter of the top head (16) is larger than the diameter of the positioning screw (15).

5. The dual-flow tire tread extruder with a rapid material switching die plate according to claim 4, characterized in that: The upper surface of the upper opening plate (4) is also provided with a positioning groove (17) for use with the top head (16); the top head (16) can abut against the positioning groove (17).

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