Mouth mold device for rubber tire extruder

Abstract

The utility model discloses a mouth mold device for a rubber tire extruder, and belongs to the technical field of rubber extrusion molding. The device comprises: an extrusion tube; the mouth mold body is arranged on the outer side of the extrusion pipe, and a plurality of fixing blocks are fixedly arranged on the outer side of the mouth mold body; and the mounting plate is detachably arranged on the outer side of the extrusion pipe, a plurality of clamping blocks are rotationally arranged on the outer side of the mounting plate, and the clamping blocks are used for being matched with the mounting plate to clamp and fix the fixing blocks. The clamping blocks are rotated to clamp and fix or unfix the fixing blocks on the outer side of the die body, so that the die body is mounted and dismounted, and the problems that the outer layer of the die is generally made of metal, the size is large, and workers are inconvenient to operate during threaded connection are effectively solved; therefore, the technical effect that the mouth mold is convenient to mount and dismount is achieved.

Description

Technical Field

[0001] This application relates to the field of rubber extrusion molding technology, and more specifically, to a die device for a rubber tire extruder. Background Technology

[0002] A rubber extrusion molding machine is a specialized mechanical device used to process rubber raw materials into continuous profiles or products with specific cross-sectional shapes. The rubber material enters the barrel from the feed port and undergoes several stages of conveying, compression, melting and homogenization under the propulsion of the rotating screw. Finally, it is extruded and molded in a uniform viscous flow state through a precisely designed die.

[0003] In related technologies, the molding machine head and extrusion die lack a quick-change function, resulting in low efficiency in changing the extrusion die. To facilitate the replacement of the extrusion die, for example, patent CN219522981U provides a rubber extrusion molding die. This device uses a molding machine head and a threaded cylinder to cooperate in installing and removing the extrusion die, thereby facilitating the replacement of the extrusion die and improving the replacement efficiency. When the extrusion die needs to be replaced, the lifting rod is pulled by a pull plate, causing the lifting rod to move the movable plate and the locking rod. This allows one side of the locking rod to disengage from the inside of the locking groove, allowing the threaded cylinder to rotate inside the molding machine head. Rotating the threaded cylinder completely disengages it from the inside of the molding machine head, completing the extrusion process. The process involves disassembling and replacing the extrusion die with one of different specifications, then installing the new die. The threaded cylinder is rotated into the molding machine head, and the left side of the threaded cylinder presses against the clamping rod, causing the clamping rod to move up and down. When the clamping groove reaches one side of the clamping rod, the locking spring releases the movable plate and the clamping rod, allowing one side of the clamping rod to engage with the inside of the clamping groove, thus limiting the threaded cylinder and completing the installation of the extrusion die. This process solves the problem that in rubber manufacturing, a molding machine is needed, and the molding machine head works with the extrusion die to extrude rubber. When producing rubber of different specifications and shapes, different extrusion dies need to be changed, but existing molding machine heads and extrusion dies do not have a quick-change function, resulting in low efficiency in changing extrusion dies and delaying rubber production.

[0004] Although the existing technical solutions mentioned above use the molding machine head and the threaded cylinder to install and remove the extrusion die, thus facilitating the replacement of the extrusion die, in actual operation, since the outer layer of the die is generally metal and has a large volume, it is inconvenient for workers to operate when making threaded connections, increasing the difficulty of installing and removing the die.

[0005] In view of this, we propose a die device for a rubber tire extruder. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] The purpose of this application is to provide a die device for a rubber tire extruder, which solves the technical problem that the outer layer of the die is generally metal and has a large volume, making it inconvenient for workers to operate when the die is threaded. This achieves the technical effect of facilitating the installation and disassembly of the die.

[0008] 2. Technical Solution

[0009] This application provides a die device for a rubber tire extruder, comprising:

[0010] Extrusion tube;

[0011] The die body is disposed on the outside of the extrusion tube, and several fixing blocks are fixedly disposed on the outside of the die body;

[0012] The mounting plate is detachably mounted on the outside of the extrusion tube. Several clamping blocks are rotatably mounted on the outside of the mounting plate. The clamping blocks are used to cooperate with the mounting plate to clamp and fix several fixing blocks.

[0013] As an optional solution to the technical solution of this application, the outer sides of the plurality of fixing blocks are all set as inclined surfaces A, and one side of the plurality of clamping blocks is set as inclined surface B corresponding to the plurality of inclined surfaces A.

[0014] As an optional solution to the technical solution of this application, several clamping blocks are fixedly disposed on the inner side of the corresponding fixing arm, and a worm gear is fixedly disposed on the inner side of several fixing arms. A worm is engaged at the bottom of the worm gear, and the worm is rotatably disposed on the inner side of the mounting plate. A handwheel is fixedly disposed at one end of the worm.

[0015] As an optional solution to the technical solution of this application, the inner thread of the handwheel is provided with a fixing bolt, which is used to fix the handwheel.

[0016] As an optional solution to the technical solution of this application, two worm gears are symmetrically rotated on the outer side of the mounting plate, and a sprocket is fixedly installed at one end of each of the two worm gears. A chain is meshed on the outer side of the two sprockets.

[0017] As an optional solution of the technical solution in this application, a connecting pipe is fixedly provided on the outer side of the mounting plate corresponding to the die body, and a number of limiting blocks are fixedly provided on the outer side of the connecting pipe. Limiting grooves are opened on the inner side of each of the limiting blocks, and a number of sliding blocks are fixedly provided on the outer side of the worm gear corresponding to the limiting grooves.

[0018] As an optional solution to the technical solution of this application, a flange A is fixedly provided on one side of the extrusion tube, and a flange B is fixedly provided on one side of the mounting plate. The flange B and the flange A are detachably connected, and a sealing ring is provided on the inner side of the flange B.

[0019] 3. Beneficial effects

[0020] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0021] (1) This application uses several clamping blocks to clamp and fix or release several fixing blocks on the outside of the die body by rotating several clamping blocks, thereby installing and disassembling the die body. Therefore, it effectively solves the problem that the outer layer of the die is generally metal and has a large volume, making it inconvenient for workers to operate when threaded. This achieves the technical effect of facilitating the installation and disassembly of the die.

[0022] (2) This application improves the stability of the worm wheel by setting two worm gears on the outside of the mounting plate and driving a worm wheel to rotate together. By setting a connecting pipe on the outside of the mounting plate, the die body is supported by several limiting blocks on the outside of the connecting pipe when the die is installed, which facilitates the subsequent installation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a die device for a rubber tire extruder disclosed in a preferred embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the assembly of the extrusion tube and the mounting plate in a die device for a rubber tire extruder, as disclosed in a preferred embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the assembly of the die body and the mounting plate in a die device for a rubber tire extruder, as disclosed in a preferred embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the structure of a connecting pipe in a die device for a rubber tire extruder, as disclosed in a preferred embodiment of this application.

[0027] Figure 5 This is a schematic diagram of the worm gear structure in a die device for a rubber tire extruder, as disclosed in a preferred embodiment of this application.

[0028] The following are the labels in the diagram: 1. Extrusion tube; 11. Flange A; 2. Die body; 21. Fixing block; 211. Inclined surface A; 3. Mounting plate; 31. Clamping block; 311. Inclined surface B; 32. Fixing arm; 33. Worm gear; 331. Sliding block; 34. Worm; 35. Handwheel; 351. Fixing bolt; 36. Sprocket; 37. Chain; 38. Connecting tube; 381. Limiting block; 3811. Limiting groove; 39. Flange B; 391. Sealing ring. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] Reference Figure 1 and Figure 3 This application discloses a die device for a rubber tire extruder, including an extrusion tube 1, a die body 2 disposed on the outside of the extrusion tube 1, a plurality of fixing blocks 21 fixedly disposed on the outside of the die body 2, a mounting plate 3 detachably disposed on the outside of the extrusion tube 1, and a plurality of clamping blocks 31 rotatably disposed on the outside of the mounting plate 3, the plurality of clamping blocks 31 being used to cooperate with the mounting plate 3 to clamp and fix the plurality of fixing blocks 21.

[0031] When it is necessary to replace the die body 2, by rotating several clamping blocks 31, the clamping blocks 31 are released from fixing the fixing blocks 21, so that the die body 2 can be removed. Then, the new die body 2 is placed inside the clamping blocks 31, and the clamping blocks 31 are rotated in the opposite direction, so that the clamping blocks 31 clamp and fix the fixing blocks 21 on the outside of the new die body 2, thus completing the replacement of the die body 2.

[0032] In use, the rubber is connected to the extruder through the extrusion tube 1, and the rubber is transferred to the inside of the die body 2 through the extrusion tube 1 and extruded through the die body 2.

[0033] Reference Figure 1 , Figure 2 and Figure 3 The outer sides of several fixing blocks 21 are all set as inclined surfaces A211, and one side of several clamping blocks 31 is set as inclined surface B311 corresponding to several inclined surfaces A211. Several clamping blocks 31 are all fixedly set on the inner side of the corresponding fixing arm 32. A worm wheel 33 is fixedly set on the inner side of several fixing arms 32. A worm 34 is meshed at the bottom of the worm wheel 33. The worm 34 is rotatably set on the inner side of the mounting plate 3. A handwheel 35 is fixedly set at one end of the worm 34. A fixing bolt 351 is threaded on the inner side of the handwheel 35. The fixing bolt 351 is used to fix the handwheel 35.

[0034] When it is necessary to replace the die body 2, the handwheel 35 is turned, which drives the worm gear 34 to rotate, thereby driving the worm wheel 33 to rotate. The worm wheel 33 drives several fixed arms 32 to make circular motion, thereby driving several clamping blocks 31 to slide along the inclined plane A211. This releases the clamping blocks 31 from the fixing blocks 21, allowing the die body 2 to be removed. The new die body 2 is then placed inside the clamping blocks 31. The handwheel 35 is turned in the opposite direction, thus reversing the above steps. This causes the clamping blocks 31 to clamp and fix the fixing blocks 21 on the outside of the new die body 2, completing the replacement of the die body 2. Several inclined planes B311 cooperate with several inclined planes A211, and the worm wheel 33 and worm gear 34 mesh to ensure the limiting effect after the die body 2 is fixed.

[0035] After fixing the die body 2, the handwheel 35 is fixed by rotating the fixing bolt 351 to prevent people around from accidentally touching the handwheel 35 and causing it to rotate. The direction of rotation of the fixing bolt 351 is the same as the direction of rotation of the handwheel 35 when fixing the die body 2.

[0036] Reference Figure 2 , Figure 4 and Figure 5 Two worm gears 34 are symmetrically rotated on the outer side of the mounting plate 3. A sprocket 36 is fixedly mounted at one end of each worm gear 34. A chain 37 is meshed on the outer side of the two sprockets 36. A connecting pipe 38 is fixedly mounted on the outer side of the mounting plate 3 corresponding to the die body 2. Several limiting blocks 381 are fixedly mounted on the outer side of the connecting pipe 38. Limiting grooves 3811 are opened on the inner side of each limiting block 381. Several sliding blocks 331 are fixedly mounted on the outer side of the worm gear 33 corresponding to the several limiting grooves 3811. A flange A11 is fixedly mounted on one side of the extrusion pipe 1. A flange B39 is fixedly mounted on one side of the mounting plate 3. The flange B39 and the flange A11 are detachably mounted. A sealing ring 391 is provided on the inner side of the flange B39.

[0037] A worm gear 34 drives the sprocket 36 connected to it to rotate, which in turn drives the chain 37 and another sprocket 36 to rotate, which in turn drives another worm gear 34 to rotate, so that the two worm gears 34 rotate simultaneously and drive the worm wheel 33 to rotate, making the worm wheel 33 rotate more stably.

[0038] When the die body 2 is placed between several clamping blocks 31, several limiting blocks 381 support the die body 2 to facilitate subsequent fixing steps. Several sliding blocks 331 are slidably set inside the corresponding limiting grooves 3811 to support the worm gear 33. The mounting plate 3 and the extrusion tube 1 are detachably set by flanges A11 and B39. The sealing ring 391 is used to improve the sealing performance of the equipment.

[0039] In summary, the die device for a rubber tire extruder disclosed in this application is connected to the extruder through the extrusion pipe 1 during use. Rubber is transferred to the inside of the die body 2 through the extrusion pipe 1 and extruded through the die body 2.

[0040] When it is necessary to replace the die body 2, the handwheel 35 is turned, causing the corresponding worm 34 to rotate, which in turn drives the connected sprocket 36 to rotate, thereby driving the chain 37 and another sprocket 36 to rotate, which in turn drives another worm 34 to rotate. The two worms 34 rotate simultaneously, driving the worm wheel 33 to rotate. The worm wheel 33 then drives several fixed arms 32 to perform circular motion, thereby causing several clamping blocks 31 to slide along the inclined plane A211. This releases the clamping blocks 31 from the fixed blocks 21, allowing the die body to be replaced. The mold body 2 is removed, and the new mold body 2 is placed inside several clamping blocks 31. Several limiting blocks 381 support the mold body 2. Then, the handwheel 35 is rotated in the opposite direction, so that the above steps are reversed, and the clamping blocks 31 clamp and fix the several fixing blocks 21 on the outside of the new mold body 2, thus completing the replacement of the mold body 2. Several inclined surfaces B311 and several inclined surfaces A211 cooperate with each other and are set by the meshing of worm gear 33 and worm 34 to ensure the limiting effect after the mold body 2 is fixed.

Claims

1. A die device for a rubber tire extruder, characterized by: The utility model relates to an extrusion pipe fixing device, which comprises an extrusion pipe (1), a die body (2) arranged outside the extrusion pipe (1), a mounting plate (3) arranged outside the extrusion pipe (1) in a detachable manner, and a plurality of fixed blocks (21) arranged on the outer side of the die body (2) in a fixed manner. The outer side of each of the fixed blocks (21) is provided with a slope A (211), and one side of each of the clamping blocks (31) is provided with a slope B (311) corresponding to the slope A (211). Each of the clamping blocks (31) is fixedly arranged on the inner side of a corresponding fixed arm (32), the inner side of each of the fixed arms (32) is fixedly provided with a worm wheel (33), the bottom of the worm wheel (33) is engaged with a worm (34), one end of the worm (34) is fixedly arranged on the inner side of the mounting plate (3), and the other end of the worm (34) is fixedly provided with a hand wheel (35). The inner side of the hand wheel (35) is screwedly provided with a fixing bolt (351), and the fixing bolt (351) is used for fixing the hand wheel (35).

2. A die head assembly for an extruder of rubber tyres according to claim 1, characterized in that: The outer side of the mounting plate (3) is symmetrically rotatably provided with two worms (34), one end of each of the two worms (34) is fixedly provided with a sprocket (36), and the outer sides of the two sprockets (36) are jointly engaged with a chain (37).

3. A die head assembly for an extruder of rubber tires according to claim 1, characterized in that: The outer side of the mounting plate (3) is fixedly provided with a connecting pipe (38) corresponding to the die body (2), the outer side of the connecting pipe (38) is fixedly provided with a plurality of limiting blocks (381), the inner side of each of the limiting blocks (381) is provided with a limiting groove (3811), and the outer side of the worm wheel (33) is fixedly provided with a plurality of sliding blocks (331) corresponding to the limiting grooves (3811).

4. A die head assembly for an extruder of rubber tyres according to claim 3, characterized in that: One side of the extrusion pipe (1) is fixedly provided with a flange A (11), one side of the mounting plate (3) is fixedly provided with a flange B (39), the flange B (39) is detachably arranged with the flange A (11), and the inner side of the flange B (39) is provided with a sealing ring (391).

5. A die head assembly for an extruder of rubber tyres according to claim 3, characterized in that: ​ 6. A die head assembly for an extruder of rubber tyres according to claim 3, characterized in that: ​ 7. A die head assembly for an extruder of rubber tires according to claim 1, characterized in that: ​

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