Premixing device for thermoplastic rubber production

Abstract

The utility model discloses a premixing device for thermoplastic rubber production, which relates to the technical field of rubber production equipment, and comprises a shell, the top of the shell is communicated with a feed pipe, the bottom of the shell is communicated with a discharge pipe, the discharge pipe is provided with a discharge valve, the inner wall of the shell is provided with a fixed shaft, and the inner wall of the shell is provided with a discharge valve. A first filter plate is obliquely arranged in the shell, and the higher side of the first filter plate is located below the feeding pipe and rotationally connected with the fixed shaft; materials are preliminarily screened through the first filter plate, the first motor drives the crushing blades to rotate to crush the materials with large particle sizes, the crushed materials are screened through the second filter plate and then fall to the bottom of the shell to be mixed, the materials with the large particle sizes can be crushed in the mixing process, and the materials with the large particle sizes can be uniformly mixed. And the materials with large particle sizes do not need to be crushed after crushing, so that the operation procedures are saved, and the mixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber production equipment, in particular to a premixing device for thermoplastic rubber production. Background Art

[0002] Thermoplastic rubber products are required in the production of automobile interiors. Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature and can produce large deformations under very small external forces. It can return to its original shape after the external force is removed. The raw materials need to be mixed and stirred during rubber production to facilitate subsequent processing.

[0003] For example, the utility model patent with announcement number CN216152764U discloses a material premixing device for rubber product processing, in which a stirring blade is driven by a motor to stir the material. After the material is filtered through a filter, a rotating rod stirs it for a second time, and finally the material is discharged through a discharge pipe.

[0004] However, when the utility model is in use, after the material with smaller particle size passes through the filter and falls to the bottom, the material with larger particle size still remains on the top of the filter, resulting in the need to crush the material with larger particle size before mixing after mixing. The operation is relatively cumbersome, and the raw materials with larger particle size cannot be crushed during the mixing process. Therefore, a premixing device for thermoplastic rubber production is urgently needed to be developed. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a premixing device for thermoplastic rubber production. After the material is preliminarily screened through a first filter plate, a first motor drives a crushing blade to rotate to crush the material with a larger particle size. The crushed material is then screened through a second filter plate and falls to the bottom of the shell for mixing. During the mixing process, the material with a larger particle size can be crushed, and there is no need to crush the material with a larger particle size again after crushing, which saves operating procedures and improves the mixing efficiency.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a premixing device for thermoplastic rubber production, comprising a shell, a top of the shell is connected to a feed pipe, a bottom of the shell is connected to a discharge pipe, a discharge valve is arranged on the discharge pipe, a fixed shaft is arranged on the inner wall of the shell, a first filter plate is inclinedly arranged in the shell, a higher side of the first filter plate is located below the feed pipe and is rotatably connected to the fixed shaft, a first rotating shaft is rotatably arranged on the side wall of the shell and below the lower side of the first filter plate, a fourth motor capable of driving the first rotating shaft to rotate is arranged on the outer wall of the shell, a plurality of first cams are arranged on the first rotating shaft, the plurality of first cams abut against the bottom of the first filter plate, and ... A crushing bucket is arranged below the side, a second rotating shaft is rotatably arranged in the crushing bucket, a plurality of crushing blades are arranged on the second rotating shaft, a first motor is arranged on the crushing bucket, an output end of the first motor is connected with the second rotating shaft, a pair of limiting grooves are arranged on a pair of inner walls of the crushing bucket and below the second rotating shaft, a plurality of second springs are arranged in the pair of limiting grooves, a second filter plate is arranged on the plurality of second springs, and both sides of the second filter plate are movably arranged in the pair of limiting grooves, a third rotating shaft is rotatably arranged in the crushing bucket, a second motor capable of driving the third rotating shaft to rotate is arranged on the outer wall of the crushing bucket, a plurality of second cams are arranged on the third rotating shaft, and the plurality of second cams abut against the bottom of the second filter plate, and a stirring component for stirring the material is arranged at the bottom of the shell.

[0007] Preferably, the stirring assembly includes a third motor, a fourth rotating shaft and a spiral blade, the fourth rotating shaft is rotatably arranged in the shell near the bottom, the third motor is arranged on the outer wall of the shell and the output end is connected to the fourth rotating shaft, and the spiral blade is arranged on the fourth rotating shaft.

[0008] Preferably, a fixing rod is provided on the inner wall of the shell and below the lower side of the first filter plate, and a plurality of first springs are provided on the fixing rod, and the tops of the plurality of first springs are connected to the bottom of the first filter plate.

[0009] The utility model provides a premixing device for thermoplastic rubber production, which has the following beneficial effects:

[0010] 1. The utility model first screens the material through the first filter plate, and then the first motor drives the crushing blade to rotate to crush the material with larger particle size. The crushed material is screened by the second filter plate and then falls to the bottom of the shell for mixing. In the mixing process, the material with larger particle size can be crushed, and there is no need to crush the material with larger particle size after crushing, which saves the operation process and improves the mixing efficiency.

[0011] 2. In the utility model, when the output end of the third motor arranged on the outer wall of the shell rotates, it drives the connected fourth rotating shaft to rotate, and the fourth rotating shaft drives the connected spiral blade to rotate to mix the rubber material; when the first cam drives the first filter plate to shake, multiple first springs buffer the lower end side of the first filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a premixing device for thermoplastic rubber production according to the utility model;

[0013] Figure 2 The utility model is a premixing device for thermoplastic rubber production Figure 1 Enlarged view of part A;

[0014] Figure 3 It is a right view of a premixing device for thermoplastic rubber production according to the utility model.

[0015] In the figure: 1. shell; 2. feed pipe; 3. discharge pipe; 4. discharge valve; 5. first filter plate; 6. fixed shaft; 7. first rotating shaft; 8. first cam; 9. fixed rod; 10. first spring; 11. crushing bucket; 11-1, limit groove; 12. first motor; 13. second rotating shaft; 14. crushing blade; 15. second motor; 16. third rotating shaft; 17. second cam; 18. second filter plate; 19. second spring; 20. third motor; 21. fourth rotating shaft; 22. spiral blade; 23. fourth motor. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 1-3As shown, a premixing device for thermoplastic rubber production includes a shell 1, the top of the shell 1 is connected to a feed pipe 2, the bottom of the shell 1 is connected to a discharge pipe 3, the discharge pipe 3 is provided with a discharge valve 4, the inner wall of the shell 1 is provided with a fixed shaft 6, a first filter plate 5 is obliquely arranged in the shell 1, the higher side of the first filter plate 5 is located below the feed pipe 2 and is rotatably connected to the fixed shaft 6, a first rotating shaft 7 is rotatably arranged on the side wall of the shell 1 and below the lower side of the first filter plate 5, and a shaft capable of driving the first filter plate 5 to rotate is provided on the outer wall of the shell 1. A fourth motor 23 for rotating the rotating shaft 7, a plurality of first cams 8 are arranged on the first rotating shaft 7, and the plurality of first cams 8 abut against the bottom of the first filter plate 5, a crushing bucket 11 is arranged on the inner wall of the housing 1 and below the lower side of the first filter plate 5, a second rotating shaft 13 is arranged in the crushing bucket 11 for rotation, a plurality of crushing blades 14 are arranged on the second rotating shaft 13, a first motor 12 is arranged on the crushing bucket 11, and the output end of the first motor 12 is connected to the second rotating shaft 13, and a pair of inner walls of the crushing bucket 11 and located below the second rotating shaft 13 A pair of limiting grooves 11-1 are provided, a plurality of second springs 19 are provided in the pair of limiting grooves 11-1, a second filter plate 18 is provided on the plurality of second springs 19, and both sides of the second filter plate 18 are movably provided in the pair of limiting grooves 11-1, a third rotating shaft 16 is rotatably provided in the crushing bucket 11, a second motor 15 capable of driving the third rotating shaft 16 to rotate is provided on the outer wall of the crushing bucket 11, a plurality of second cams 17 are provided on the third rotating shaft 16, and the plurality of second cams 17 abut against the bottom of the second filter plate 18, and the bottom of the housing 1 is provided There is a stirring component for stirring the material; the stirring component includes a third motor 20, a fourth rotating shaft 21 and a spiral blade 22, the fourth rotating shaft 21 is rotatably set in the shell 1 near the bottom, the third motor 20 is set on the outer wall of the shell 1 and the output end is connected to the fourth rotating shaft 21, and the spiral blade 22 is set on the fourth rotating shaft 21; a fixing rod 9 is set on the inner wall of the shell 1 and below the lower side of the first filter plate 5, and a plurality of first springs 10 are set on the fixing rod 9, and the tops of the plurality of first springs 10 are connected to the bottom of the first filter plate 5.

[0018] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0019] In the present invention, the first motor 12, the second motor 15, the third motor 20 and the fourth motor 23 are all connected to the external electric control system through wires. The above devices and connection methods are all existing technologies and will not be described in detail here.

[0020] According to the instruction manual Figure 1-3It can be known that when the utility model is in use, first, the discharge valve 4 on the discharge pipe 3 is closed, and the stirring assembly arranged near the bottom of the shell 1 is started. Secondly, the material to be mixed is added through the feed pipe 2, and the material falls on the inclined first filter plate 5, and rolls from the high end side of the first filter plate 5 to the low end side, and the fourth motor 23 arranged on the outer wall of the shell 1 is started. The output end of the fourth motor 23 drives the connected first rotating shaft 7 to rotate, and the first rotating shaft 7 drives the multiple first cams 8 arranged thereon to rotate. The first cam 8 abuts against the bottom of the first filter plate 5 to make the first filter plate 5 shake with the fixed shaft 6 as the center, thereby promoting the material to roll down on the first filter plate 5, wherein the material with a particle size smaller than the filter hole of the first filter plate 5 falls to the bottom of the shell 1 for mixing, and the material with a particle size larger than the filter hole of the first filter plate 5 falls into the crushing bucket 11. Again, the first motor 12 and the second motor 15 arranged on the outer wall of the crushing bucket 11 are started, and the first motor 12 drives the second rotating shaft 13 to rotate, and the second rotating shaft 13 drives The plurality of crushing blades 14 arranged thereon rotate to crush the materials, the output end of the second motor 15 drives the connected third rotating shaft 16 to rotate, the third rotating shaft 16 drives the plurality of second cams 17 to rotate, and the cooperation of the plurality of second cams 17 and the plurality of second springs 19 causes the second filter plate 18 to swing back and forth, thereby promoting the crushed materials to fall downward, the stirring assembly stirs the materials screened by the first filter plate 5 and the second filter plate 18, and after the stirring is completed, the discharge valve 4 on the discharge pipe 3 is opened to discharge the mixed materials; the utility model firstly screens the materials through the first filter plate 5, and then the first motor 12 drives the crushing blade 14 to rotate to crush the materials with larger particle sizes, and the crushed materials are screened by the second filter plate 18 and fall to the bottom of the housing 1 for mixing, and the materials with larger particle sizes can be crushed in the mixing process, and there is no need to crush the materials with larger particle sizes after crushing, thereby saving the operation process and improving the mixing efficiency.

[0021] There is a possible implementation, when the output end of the third motor 20 arranged on the outer wall of the housing 1 rotates, it drives the connected fourth shaft 21 to rotate, and the fourth shaft 21 drives the connected spiral blade 22 to rotate to mix the rubber material.

[0022] There is a possible implementation: a fixing rod 9 is provided on the inner wall of the shell 1 and below the lower side of the first filter plate 5, and a plurality of first springs 10 are provided on the fixing rod 9. The tops of the plurality of first springs 10 are connected to the bottom of the first filter plate 5. When the first cam 8 drives the first filter plate 5 to shake, the plurality of first springs 10 buffer the lower end side of the first filter plate 5.

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

Claims

1. A premixing device for thermoplastic rubber production, comprising a housing (1), wherein the top of the housing (1) is connected to a feed pipe (2), the bottom of the housing (1) is connected to a discharge pipe (3), and the discharge pipe (3) is provided with a discharge valve (4), characterized in that: A fixed shaft (6) is arranged on the inner wall of the shell (1), a first filter plate (5) is arranged obliquely in the shell (1), a higher side of the first filter plate (5) is located below the feed pipe (2) and is rotatably connected to the fixed shaft (6), a first rotating shaft (7) is rotatably arranged on the side wall of the shell (1) and located below the lower side of the first filter plate (5), a fourth motor (23) capable of driving the first rotating shaft (7) to rotate is arranged on the outer wall of the shell (1), a plurality of first cams (8) are arranged on the first rotating shaft (7), and the plurality of first cams (8) abut against the bottom of the first filter plate (5), a crushing bucket (11) is arranged on the inner wall of the shell (1) and corresponding to the lower side of the first filter plate (5), a second rotating shaft (13) is rotatably arranged in the crushing bucket (11), a plurality of crushing blades (14) are arranged on the second rotating shaft (13), and a fourth motor (23) capable of driving the first rotating shaft (7) to rotate is arranged on the outer wall of the shell (1), a plurality of first cams (8) are arranged on the first rotating shaft (7), and the plurality of first cams (8) abut against the bottom of the first filter plate (5), A first motor (12) is arranged, the output end of the first motor (12) is connected to the second rotating shaft (13), a pair of limiting grooves (11-1) are provided on a pair of inner walls of the crushing bucket (11) and below the second rotating shaft (13), a plurality of second springs (19) are arranged in the pair of limiting grooves (11-1), a second filter plate (18) is arranged on the plurality of second springs (19), both sides of the second filter plate (18) are movably arranged in the pair of limiting grooves (11-1), a third rotating shaft (16) is rotatably arranged in the crushing bucket (11), a second motor (15) capable of driving the third rotating shaft (16) to rotate is arranged on the outer wall of the crushing bucket (11), a plurality of second cams (17) are arranged on the third rotating shaft (16), the plurality of second cams (17) abut against the bottom of the second filter plate (18), and a stirring component for stirring the material is arranged at the bottom of the housing (1).

2. A premixing device for thermoplastic rubber production according to claim 1, characterized in that: The stirring assembly comprises a third motor (20), a fourth rotating shaft (21) and a spiral blade (22); the fourth rotating shaft (21) is rotatably arranged in a position close to the bottom of the shell (1); the third motor (20) is arranged on the outer wall of the shell (1) and the output end is connected to the fourth rotating shaft (21); and the spiral blade (22) is arranged on the fourth rotating shaft (21).

3. A premixing device for thermoplastic rubber production according to claim 1, characterized in that: A fixing rod (9) is arranged on the inner wall of the housing (1) and below the lower side of the first filter plate (5); a plurality of first springs (10) are arranged on the fixing rod (9); and the tops of the plurality of first springs (10) are connected to the bottom of the first filter plate (5).

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