A rubber masterbatch uniform mixing device

Abstract

The utility model discloses a rubber masterbatch uniform mixing device, which belongs to the technical field of rubber product production, and comprises a crushing tank and a stirring tank, wherein a bracket is installed on the stirring tank, the crushing tank is rotatably installed on the bracket, a discharge port is arranged on the crushing tank, a blanking structure is arranged on the upper end of the stirring tank, a crushing roller and a screen plate are installed inside the crushing tank, a feeding port is arranged at a position of the crushing tank away from the screen plate, an opening and closing plate is hingedly connected to the end of the discharge port, a magnet is installed at one end of the opening and closing plate which is not hinged to the discharge port, a top opening component is installed on the outer side wall of the discharge port, the lower end of the top opening component can be against the opening and closing plate, the blanking structure comprises a blanking port, and two baffle plates which are parallel to each other along the symmetry plane of the bracket are installed above the blanking port, a baffle is fixed at one end of the baffle plate, the utility model can fully crush the accelerator, improve the discharge speed, and avoid the clogging of the screen plate.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber product production, in particular to a rubber masterbatch uniform mixing device. Background Art

[0002] Masterbatch, also known as master batch, refers to the process of premixing one or more ingredients into the raw rubber matrix. Rubber factories use this process to ensure uniform dispersion of the mixed rubber and improve the quality of the mixed rubber. However, the existing rubber masterbatch mixing equipment usually causes uneven mixing of the substances participating in the reaction during the mixing process.

[0003] In order to improve the mixing efficiency of the accelerator and the rubber material, a crushing chamber is usually provided above the stirring device. The crushing chamber can crush and sieve the accelerator with a large size and discharge it into the stirring device.

[0004] A screen plate is usually set at the bottom of the crushing chamber to be directly connected to the stirring device. The crushing roller is usually rotatably installed above the screen plate. During crushing, the larger promoters at the bottom usually cannot be completely crushed. These larger promoters cannot pass through the screen plate and accumulate at the bottom of the crushing chamber, causing blockage of the screen plate and affecting the feeding speed and amount of the promoter. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a rubber masterbatch uniform mixing device, which can fully crush the accelerator, increase the feeding speed and avoid the blockage of the screen plate.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a rubber masterbatch uniform mixing device, comprising a crushing tank and a stirring tank, wherein the crushing tank is installed at the upper end of the stirring tank, a discharge port is provided on the crushing tank, and a drop structure which can be communicated with the discharge port is provided at the upper end of the stirring tank;

[0007] The mixing tank is provided with a bracket, the crushing tank is rotatably mounted on the bracket, a crushing roller and a screen plate are installed inside the crushing tank, the screen plate is located at one end of the crushing roller close to the discharge port, and the crushing tank is provided with a feed port away from the screen plate;

[0008] An opening and closing plate is hingedly connected to the end of the discharge port, a magnet is installed at one end of the opening and closing plate that is not hinged to the discharge port, the magnet can be adsorbed on the discharge port, a top opening component is installed on the outer wall of the discharge port, an extension block is provided at one end of the opening and closing plate close to the magnet, and the lower end of the top opening component can be against the extension block;

[0009] The material dropping structure includes a material dropping port, above which are installed two material baffle plates parallel to each other along the symmetry plane of the bracket, the hinged end of the opening and closing plate is perpendicular to the length direction of the material baffle plate, and one end of the material baffle plate is fixed with a baffle that can push the opening and closing plate to rotate toward the top opening component.

[0010] Preferably, a tank driving assembly is installed on one side of the bracket, one end of which is connected to the mixing tank, and a crushing driving assembly is installed on the other end of the bracket, and the end of which is connected to the crushing roller.

[0011] Preferably, the crushing drive assembly includes a motor and a transmission shaft, the motor is fixed on the bracket, a mounting hole is provided on the crushing tank, one end of the transmission shaft is connected to the motor, the other end of the transmission shaft passes through the mounting hole and is connected to the crushing roller via a bevel gear, and a dust cover is provided at the connection between the transmission shaft and the crushing roller.

[0012] Preferably, the distance between the two baffle plates is greater than the width of the discharge port.

[0013] Preferably, the width of the blanking opening is greater than the width of the opening and closing plate.

[0014] Preferably, the upper end of the stopper is provided with a transition slope inclined upward along the rotation direction of the discharge port.

[0015] Preferably, a normally closed sealing cover is installed on the feed inlet.

[0016] Preferably, the sieve plate is detachably installed inside the crushing tank.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. The utility model is provided with a rotatable crushing tank, in which the crushing roller is arranged perpendicular to the rotating axis of the crushing tank. The accelerator poured into the crushing tank will be fully crushed by the crushing roller under the continuous rotation of the crushing tank, so as to avoid the accumulation of large particles of accelerator on the screen plate, blocking the screen plate and affecting the feeding. The fully crushed accelerator is more conducive to mixing with the rubber material, thereby improving the uniformity of the mixing.

[0019] 2. The utility model installs an opening and closing plate and a top opening component on the discharge port, and arranges a blanking structure on the upper end of the mixing tank. When the discharge port rotates to above the blanking structure, the top opening component pushes the opening and closing plate to open the discharge port. After the discharge is completed, the blanking structure can push the opening and closing plate to rotate to close the discharge port, thereby realizing automatic discharge of the mixing tank and saving labor costs.

[0020] 3. The utility model sets a dust cover at the connection between the transmission shaft and the crushing roller to prevent the accelerator particles in the crushing tank from affecting the meshing of the bevel gear and prolong the service life of the bevel gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a cross-sectional view of a rubber masterbatch uniform mixing device of the utility model;

[0022] Figure 2 This is a side view of a rubber masterbatch uniform mixing device of the utility model;

[0023] Figure 3 It is a partial enlarged view of a rubber masterbatch uniform mixing device of the utility model.

[0024] In the figure: 1-crushing tank, 2-normally closed sealing cover, 3-feeding port, 4-crushing roller, 5-dust cover, 6-bracket, 7-tank driving assembly, 8-mixing tank, 9-magnet, 10-extension block, 11-opening and closing plate, 12-dropping port, 13-block, 14-blocking plate, 15-transition slope, 16-discharging port, 17-sieve plate, 18-motor, 19-drive shaft, 20-bevel gear, 21-top opening assembly. DETAILED DESCRIPTION

[0025] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-3 The rubber masterbatch uniform mixing device shown in the figure comprises a crushing tank 1 and a stirring tank 8. The crushing tank 1 is installed at the upper end of the stirring tank 8. A discharge port 16 is provided on the crushing tank 1. A blanking structure which can be communicated with the discharge port 16 is provided at the upper end of the stirring tank 8. The accelerator crushed in the crushing tank 1 can be transferred from the crushing tank 1 to the stirring tank 8 through the blanking structure.

[0027] The utility model has a bracket 6 installed on the mixing tank 8, and the crushing tank 1 is rotatably installed on the bracket 6. A crushing roller 4 and a screen plate 17 are installed inside the crushing tank 1. The screen plate 17 is located at one end of the crushing roller 4 close to the discharge port 16. When the accelerator is discharged, it needs to be screened through the screen plate 17 to prevent the incompletely crushed accelerator from entering the mixing tank 8 and affecting the uniform mixing of the rubber powder. The screen plate 17 is detachably installed inside the crushing tank 1 for easy cleaning. The crushing tank 1 is provided with a feed port 3 away from the screen plate 17, and a normally closed sealing cover 2 is installed on the feed port 3 to prevent the accelerator from leaking from the feed port 3 when the crushing tank 1 rotates.

[0028] Specifically, the crushing roller 4 is arranged perpendicular to the axis of rotation of the crushing tank 1. The accelerator poured into the crushing tank 1 will be fully crushed by the crushing roller 4 under the continuous rotation of the crushing tank 1, so as to avoid the accumulation of large particles of accelerator that have not been crushed on the screen plate 17 to block the screen plate 17 and affect the feeding speed. The accelerator is fully crushed, which is more conducive to mixing with the rubber material and improves the uniformity of the mixing.

[0029] The utility model has an opening and closing plate 11 hinged at the end of the discharge port 16, and a magnet 9 is installed at one end of the opening and closing plate 11 that is not hinged with the discharge port 16. The magnet 9 can be adsorbed on the discharge port 16 to achieve the blocking of the discharge port 16. A top opening component 21 is installed on the outer wall of the discharge port 16, and an extension block 10 is provided at the end of the opening and closing plate 11 close to the magnet 9. The lower end of the top opening component 21 can be against the extension block 10. The thrust of the top opening component 21 acts on the extension block 10, so that the magnet 9 on the opening and closing plate 11 is separated from the discharge port 16, and the blocking of the discharge port 16 by the opening and closing plate 11 is released, so that the promoter can be discharged smoothly from the discharge port 16.

[0030] The blanking structure of the utility model includes a blanking port 12, the width of which is greater than the width of the opening and closing plate 11. When the opening and closing plate 11 is opened, it can pass through the blanking port 12 to enter the interior of the mixing tank 8. Two baffle plates 14 parallel to each other along the symmetry plane of the bracket 6 are installed above the blanking port 12. The distance between the two baffle plates 14 is greater than the width of the discharge port 16 to avoid interference with the rotation of the crushing tank 1. The hinged end of the opening and closing plate 11 is perpendicular to the length direction of the baffle plate 14. A baffle 13 that can push the opening and closing plate 11 to rotate in the direction of the top opening component 21 is fixed at one end of the baffle plate 14. The upper end of the baffle 13 is provided with a transition slope 15 that is inclined upward along the rotation direction of the discharge port 16, which can make the magnet 9 on the opening and closing plate 11 smoothly adsorbed on the discharge port 16 without interfering with the rotation of the crushing tank 1.

[0031] Specifically, when the promoter in the crushing tank 1 is crushed and needs to be discharged, the discharge port 16 rotates to the top of the blanking structure, and the top opening component 21 pushes the opening and closing plate 11 to open the discharge port 16. After the promoter is discharged, the discharge port 16 rotates toward the block 13. Under the limiting action of the block 13, the opening and closing plate 11 rotates toward the discharge port 16, and finally the magnet 9 is adsorbed onto the discharge port 16 to close the discharge port 16, thereby realizing automatic discharge of the mixing tank 8 and saving labor costs.

[0032] A tank driving assembly 7 is installed on one side of the bracket 6 of the utility model, one end of the tank driving assembly 7 is connected to the stirring tank 8, and a crushing driving assembly is installed on the other end of the bracket 6, the end of the crushing driving assembly is connected to the crushing roller 4, and the tank driving assembly 7 and the crushing driving assembly respectively control the rotation of the stirring tank 8 and the crushing roller 4.

[0033] The utility model crushing drive assembly includes a motor 18 and a transmission shaft 19, the motor 18 is fixed on the bracket 6, the crushing tank 1 is provided with a mounting hole, one end of the transmission shaft 19 is connected to the motor 18, the other end of the transmission shaft 19 passes through the mounting hole and is connected to the crushing roller 4 through a bevel gear 20, and a dust cover 5 is provided at the connection between the transmission shaft 19 and the crushing roller 4 to prevent the promoter particles in the crushing tank 1 from affecting the mutual meshing of the two bevel gears 20, thereby extending the service life of the bevel gear 20.

[0034] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A rubber masterbatch uniform mixing device, characterized in that: It comprises a crushing tank and a stirring tank, wherein the crushing tank is installed at the upper end of the stirring tank, a discharge port is provided on the crushing tank, and a material dropping structure which can be communicated with the discharge port is provided at the upper end of the stirring tank; The mixing tank is provided with a bracket, the crushing tank is rotatably mounted on the bracket, a crushing roller and a screen plate are installed inside the crushing tank, the screen plate is located at one end of the crushing roller close to the discharge port, and the crushing tank is provided with a feed port away from the screen plate; An opening and closing plate is hingedly connected to the end of the discharge port, a magnet is installed at one end of the opening and closing plate that is not hinged to the discharge port, the magnet can be adsorbed on the discharge port, a top opening component is installed on the outer wall of the discharge port, an extension block is provided at one end of the opening and closing plate close to the magnet, and the lower end of the top opening component can be against the extension block; The material dropping structure includes a material dropping port, above which are installed two material baffle plates parallel to each other along the symmetry plane of the bracket, the hinged end of the opening and closing plate is perpendicular to the length direction of the material baffle plate, and one end of the material baffle plate is fixed with a baffle that can push the opening and closing plate to rotate toward the top opening component.

2. A rubber masterbatch uniform mixing device according to claim 1, characterized in that: A tank driving assembly is installed on one side of the bracket, one end of which is connected to the stirring tank, and a crushing driving assembly is installed on the other end of the bracket, and the end of which is connected to the crushing roller.

3. A rubber masterbatch uniform mixing device according to claim 2, characterized in that: The crushing drive assembly includes a motor and a transmission shaft, the motor is fixed on the bracket, a mounting hole is provided on the crushing tank, one end of the transmission shaft is connected to the motor, the other end of the transmission shaft passes through the mounting hole and is connected to the crushing roller via a bevel gear, and a dust cover is provided at the connection between the transmission shaft and the crushing roller.

4. A rubber masterbatch uniform mixing device according to claim 1, characterized in that: The distance between the two baffle plates is greater than the width of the discharge port.

5. A rubber masterbatch uniform mixing device according to claim 1, characterized in that: The width of the blanking opening is greater than the width of the opening and closing plate.

6. A rubber masterbatch uniform mixing device according to claim 1, characterized in that: The upper end of the stopper is provided with a transition slope surface which is inclined upward along the rotation direction of the discharge port.

7. A rubber masterbatch uniform mixing device according to claim 1, characterized in that: A normally closed sealing cover is installed on the feeding port.

8. The rubber masterbatch uniform mixing device according to claim 1, characterized in that: The sieve plate is detachably installed inside the crushing tank.

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