Quick rubber material switching mouth-shaped plate of double-flow-guide type tire tread rubber extruder

Abstract

The invention discloses a double-flow-guiding type tire tread rubber extruder rapid rubber material switching mouth-shaped plate, and belongs to the technical field of tire manufacturing, the double-flow-guiding type tire tread rubber extruder rapid rubber material switching mouth-shaped plate comprises a lower mouth-shaped plate and an upper mouth-shaped plate, the middle of the lower mouth-shaped plate is an extrusion platform lower than the two sides, and the two sides of the extrusion platform are each provided with a flow guiding groove; the upper mouth-shaped plate is detachably and fixedly installed over the lower mouth-shaped plate, an annular sliding rail is fixed to the upper surface of the upper mouth-shaped plate, a lifting threaded sleeve is installed on the annular sliding rail in a sliding mode, a lifting threaded rod is installed in the lifting threaded sleeve in a threaded fit mode, and a downward pressing flat plate located over the extrusion platform is fixed to the bottom end of the lifting threaded rod; according to the mouth-shaped plate, the downward pressing flat plate can be driven to vertically ascend and descend by rotating the lifting threaded sleeve, then the distance between the downward pressing flat plate and the extrusion platform can be adjusted, and compared with a traditional mouth-shaped plate, the mouth-shaped plate can adapt to rubber extrusion work of tires with different tread thicknesses and has good universality.

Description

Technical Field

[0001] The invention relates to the technical field of tire manufacturing, in particular to a double-flow-guiding tire tread rubber extruder that quickly switches rubber material die plates. Background Art

[0002] At present, in the tire production process, tread rubber extrusion is an important process in the production of tire semi-finished products. According to the tires of different specifications and functions, the performance and size of the tread rubber required are different.

[0003] In the existing production process, since the tread thickness of tires of different models and specifications is different, and the size of the extrusion opening of the die plate is fixed, when processing tires of different models and specifications, it is necessary to replace the die plate of different models to match them, and its versatility is poor. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a double-flow guide tire tread rubber extruder for quickly switching rubber material die plates. The die plates 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, the die plates can adapt to the rubber extrusion work of tires with different tread thicknesses, and have good versatility.

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

[0006] A double-flow-guiding tire tread rubber extruder quickly switches rubber material die plates, including a lower die plate and an upper die plate, wherein the middle of the lower die plate is an extrusion platform lower than the two sides, and both sides of the extrusion platform are provided with drainage grooves; the upper die plate is detachably fixedly installed directly above the lower die plate; an annular slide rail is fixedly installed on the upper surface of the upper die plate, a lifting screw sleeve is slidably installed on the annular slide rail, a lifting screw rod is installed inside the lifting screw sleeve through threaded cooperation, and a lower pressure plate directly above the extrusion platform is fixed at the bottom end of the lifting screw rod; the lower pressure plate can be driven to rise and fall vertically by rotating the lifting screw sleeve, and the distance between the lower pressure plate and the extrusion platform can be adjusted.

[0007] By adopting the above scheme, 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 the traditional die plate, the die plate can adapt to the rubber extrusion work of tires with different tread thicknesses, and has good versatility.

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

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

[0010] As a preferred embodiment of a dual-flow guide tire tread rubber extruder for quickly switching the rubber material die plate, the upper surface of the lower die plate is plugged and fixed with limit pins that are vertically arranged and distributed on both sides of the extrusion platform, and the lower surface of the upper die plate is provided with limit holes that are distributed on both sides of the lower pressing plate and cooperate with the limit pins.

[0011] By adopting the above scheme, in order to ensure the accuracy after assembly, when the limiting hole 1 is matched with the limiting pin, the extrusion platform and the pressing plate correspond to each other up and down, so the two will be more accurate after assembly.

[0012] As a preferred implementation method for quickly switching the rubber material die plate of a dual-flow guide tire tread rubber extruder, turning frames are respectively installed at both ends of the lower die plate, and the turning frames are rotatably installed in the rotating holes opened in the lower die plate through two rotating shafts; the top of the turning frame is threadedly penetrated by a positioning screw, and the lower end of the positioning screw is fixed with a pin that can abut against the upper surface of the lower die plate; the diameter of the pin is larger than the diameter of the positioning screw; the upper surface of the lower die plate is also provided with a positioning groove used in conjunction with the pin; the pin can abut into the positioning groove.

[0013] By adopting the above scheme, in order to facilitate the installation of the upper die plate on the lower die plate, the flip frame is rotated to the top of the lower die plate, and the positioning screw is rotated so that the head is abutted against the positioning groove, which will be more tightly fixed after assembly.

[0014] As a preferred implementation method for quickly switching the rubber material die plate of a dual-flow guide tire tread rubber extruder, a polyrubber box that matches the shape and size of the polyrubber box is installed in the drainage groove; the glue inlet of the polyrubber box is flush with the two sides of the extrusion platform; a flat plate integrally formed with the polyrubber box is also provided on one side of the polyrubber box, and a limiting hole 2 used in conjunction with a limiting pin is opened on the flat plate; when the limiting hole 2 is engaged with the limiting pin, the polyrubber box is completely fixed.

[0015] By adopting the above scheme, in order to facilitate the collection of the squeezed colloid, a polymer box is installed in the drainage groove. When the tire is extruded from between the lower pressure plate and the extrusion platform, the excess colloid will enter the polymer box from both sides of the extrusion platform. Later, only the polymer box needs to be disassembled and replaced.

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

[0017] 1. The die plate can drive the lower pressure plate to rise and fall vertically by rotating the lifting screw sleeve, and then adjust the distance between the lower pressure plate and the extrusion platform. Compared with the traditional die plate, the die plate can adapt to the rubber extrusion work of tires with different tread thicknesses, and it has good versatility;

[0018] 2. In order to facilitate the vertical lifting of the lower pressure plate, a guide rod is added to make the lifting and lowering of the lower pressure plate more stable and reliable;

[0019] 3. In order to ensure the accuracy after assembly, when the limit hole is matched with the limit pin, the extrusion platform and the lower pressure plate correspond to each other, so the two will be more accurate after assembly;

[0020] 4. In order to facilitate the installation of the upper die plate on the lower die plate, turn the flip frame to the top of the lower die plate, and rotate the positioning screw so that the top head contacts the positioning groove, which will be more tightly fixed after assembly;

[0021] 5. In order to facilitate the collection of the extruded colloid, a poly-colloid box is installed in the drainage groove. When the tire is extruded from between the lower pressing plate and the extrusion platform, the excess colloid will enter the poly-colloid box from both sides of the extrusion platform. Later, you only need to disassemble and replace the poly-colloid box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

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

[0024] Figure 2 for Figure 1 Exploded diagram of

[0025] Figure 3 for Figure 1 A three-dimensional structural diagram of the middle and lower mouth plate assembly;

[0026] Figure 4 for Figure 3 Medium explosion diagram;

[0027] Figure 5 for Figure 3 The three-dimensional structure diagram of the middle and lower mouth plate;

[0028] Figure 6 for Figure 1 A three-dimensional structural diagram of the middle and upper mold plate assembly;

[0029] Figure 7 for Figure 6 Medium explosion diagram;

[0030] Figure 8 For display Figure 6 A three-dimensional structural diagram of the interior.

[0031] Markings in the figure: 1-lower mouth plate; 2-extrusion platform; 3-drainage groove; 4-upper mouth plate; 5-annular slide rail; 6-lifting screw sleeve; 7-lifting screw; 8-lower pressure plate; 9-guide rod; 10-limit pin; 11-limit hole one; 12-turn frame; 13-rotating shaft; 14-rotating hole; 15-positioning screw; 16-top; 17-positioning groove; 18-polyethylene box; 19-limit hole two. DETAILED DESCRIPTION

[0032] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 8 As shown, a double-flow guide tire tread rubber extruder quickly switches the rubber material die plate, which is used for extruding the tire tread rubber, and 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 two sides, and both sides of the extrusion platform 2 are provided with a drainage groove 3; the upper die plate 4 is detachably fixedly installed just above the lower die plate 1; an annular slide rail 5 is fixed to the upper surface of the upper die plate 4, and a lifting screw sleeve 6 is slidably installed on the annular slide rail 5, and a lifting screw 7 is installed inside the lifting screw sleeve 6 through threaded cooperation, and a lower pressing plate 8 located just above the extrusion platform 2 is fixed to the bottom end of the lifting screw 7; the lower pressing plate 8 can be driven to rise and fall vertically by rotating the lifting screw sleeve 6, and then the distance between the lower pressing plate 8 and the extrusion platform 2 can be adjusted. The die plate can drive the lower pressing plate 8 to rise and fall vertically by rotating the lifting screw sleeve 6, and then the distance between the lower pressing plate 8 and the extrusion platform 2 can be adjusted. Compared with the traditional die plate, the die plate can adapt to the rubber extrusion work of tires with different tread thicknesses, and it has good versatility.

[0034] like Figure 7 As shown, guide rods 9 are fixed on both sides of the lifting screw 7 and parallel to the lifting screw 7, and the guide rods 9 penetrate and are slidably installed in the upper mold plate 4. In order to facilitate the vertical lifting of the lower pressing plate 8, by adding the guide rods 9, the lower pressing plate 8 will be more stable and reliable when it is lifted and driven.

[0035] like Figure 2As shown, the upper surface of the lower die plate 1 is fixed with a vertically arranged limit pin 10 distributed on both sides of the extrusion platform 2, and the lower surface of the upper die plate 4 is provided with a limit hole 11 distributed on both sides of the lower pressing plate 8 and matched with the limit pin 10. In order to ensure the accuracy after assembly, when the limit hole 11 is matched with the limit pin 10, the extrusion platform 2 and the lower pressing plate 8 correspond to each other up and down, so the two will be more accurate after assembly.

[0036] like Figure 4 As shown, the two ends of the lower die plate 1 are respectively installed with a turning frame 12, and the turning frame 12 is rotatably installed in the turning hole 14 opened on the lower die plate 1 through two rotating shafts 13; the top of the turning frame 12 is threaded with a positioning screw 15, and the lower end of the positioning screw 15 is fixed with a head 16 that can abut against the upper surface of the lower die plate 1; the diameter of the head 16 is larger than the diameter of the positioning screw 15; the upper surface of the lower die plate 1 is also provided with a positioning groove 17 used in conjunction with the head 16; the 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 turning frame 12 to the top of the lower die plate 1, by rotating the positioning screw 15, the head 16 abuts against the positioning groove 17, so that it will be more tightly fixed after assembly.

[0037] like Figure 4 As shown, a poly-plastic box 18 of a shape and size matching the drainage groove 3 is installed in the drainage groove 3; the glue inlet of the poly-plastic box 18 is flush with the two sides of the extrusion platform 2; a flat plate formed integrally with the poly-plastic box 18 is also provided on one side of the poly-plastic box 18, and a second limiting hole 19 used in conjunction with the limiting pin 10 is provided on the flat plate; when the second limiting hole 19 is engaged with the limiting pin 10, the poly-plastic box 18 is completely fixed. In order to facilitate the collection of the extruded colloid, by installing the poly-plastic box 18 in the drainage groove 3, when the tire is extruded from between the lower pressing plate 8 and the extrusion platform 2, the excess colloid will enter the poly-plastic box 18 from both sides of the extrusion platform 2, and only the poly-plastic box 18 needs to be disassembled and replaced later.

[0038] Working principle of the present invention:

[0039] Before application, first, match the limiting hole 11 with the limiting pin 10, at this time, the extrusion platform 2 and the lower pressure plate 8 correspond to each other up and down, so the two will be more accurate after assembly; then, by rotating the flip frame 12 to the top of the lower mouth plate 1, by rotating the positioning screw 15, the top head 16 is abutted against the positioning groove 17, so that it will be more tightly fixed after assembly; finally, according to the tread thickness to be processed, the lower pressure plate 8 can be driven to rise and fall vertically by rotating the lifting screw sleeve 6, and then the distance between the lower pressure plate 8 and the extrusion platform 2 can be adjusted to match the tread thickness.

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

[0041] The above are only 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 in the protection scope of the present invention.

Claims

1. A double-flow guide type tire tread rubber extruder for quickly switching rubber material die plates, 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 two sides thereof, and both sides of the extrusion platform (2) are provided with drainage grooves (3); Features: The upper die plate (4) is detachably fixedly mounted just above the lower die plate (1); an annular slide rail (5) is fixedly mounted on the upper surface of the upper die plate (4); a lifting screw sleeve (6) is slidably mounted on the annular slide rail (5); a lifting screw rod (7) is mounted inside the lifting screw sleeve (6) through threaded engagement; a lower pressing plate (8) located just above the extrusion platform (2) is fixedly mounted at the bottom end of the lifting screw rod (7); 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).

2. The double-flow guide tire tread rubber extruder quick-switching rubber die plate according to claim 1, characterized in that: Guide rods (9) are also fixed above the lower pressing plate (8) and are distributed on both sides of the lifting screw (7) and are parallel to the lifting screw (7). The guide rods (9) penetrate through and are slidably installed in the upper die plate (4).

3. The double-flow guide tire tread rubber extruder quick-switching rubber die plate according to claim 2, characterized in that: The upper surface of the lower die plate (1) is plugged and fixed with a limit pin (10) which is vertically arranged and distributed on both sides of the extrusion platform (2), and the lower surface of the upper die plate (4) is provided with a limit hole (11) which is distributed on both sides of the lower pressing plate (8) and cooperates with the limit pin (10); when the limit hole (11) cooperates with the limit pin (10), the extrusion platform (2) and the lower pressing plate (8) correspond to each other in the upper and lower directions.

4. The double-flow guide tire tread rubber extruder quick-switching rubber die plate according to claim 1, characterized in that: Turning frames (12) are respectively installed at both ends of the lower die plate (1), and the turning frames (12) are rotatably installed in turning holes (14) provided on the lower die plate (1) via two rotating shafts (13); a positioning screw (15) is threadedly penetrated at the top of the turning frame (12), and a top head (16) capable of contacting the upper surface of the lower die plate (1) is fixed at the lower end of the positioning screw (15).

5. The double-flow guide tire tread rubber extruder quick-switching rubber die plate according to claim 4, characterized in that: The diameter of the mandrel (16) is greater than the diameter of the positioning screw (15).

6. The double-flow guide tire tread rubber extruder quick-switching rubber die plate according to claim 5, characterized in that: The upper surface of the lower die plate (1) is also provided with a positioning groove (17) for use with the ejector head (16); the ejector head (16) can abut against the positioning groove (17).

7. The double-flow guide type tire tread rubber extruder quick-switching rubber die plate according to any one of claims 3 to 6, characterized in that: A polyglue box (18) having a shape and size matching that of the drainage groove (3) is installed in the drainage groove (3); the glue inlet of the polyglue box (18) is flush with the two sides of the extrusion platform (2).

8. The double-flow guide tire tread rubber extruder quick-switching rubber die plate according to claim 7, characterized in that: A flat plate integrally formed therewith is also provided on one side of the polyurethane box (18), and a second limiting hole (19) for use with the limiting pin (10) is provided on the flat plate; when the second limiting hole (19) is matched with the limiting pin (10), the polyurethane box (18) is completely fixed.

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